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1.
J Clin Med ; 13(10)2024 May 09.
Article in English | MEDLINE | ID: mdl-38792322

ABSTRACT

Complications from diabetic retinopathy such as diabetic macular edema (DME) and proliferative diabetic retinopathy (PDR) constitute leading causes of preventable vision loss in working-age patients. Since vascular endothelial growth factor (VEGF) plays a major role in the pathogenesis of these complications, VEGF inhibitors have been the cornerstone of their treatment. Anti-VEGF monotherapy is an effective but burdensome treatment for DME. However, due to the intensive and burdensome treatment, most patients in routine clinical practice are undertreated, and therefore, their outcomes are compromised. Even in adequately treated patients, persistent DME is reported anywhere from 30% to 60% depending on the drug used. PDR is currently treated by anti-VEGF, panretinal photocoagulation (PRP) or a combination of both. Similarly, a number of eyes, despite these treatments, continue to progress to tractional retinal detachment and vitreous hemorrhage. Clearly there are other molecular pathways other than VEGF involved in the pathogenesis of DME and PDR. One of these pathways is the angiopoietin-Tie signaling pathway. Angiopoietin 1 (Ang1) plays a major role in maintaining vascular quiescence and stability. It acts as a molecular brake against vascular destabilization and inflammation that is usually promoted by angiopoietin 2 (Ang2). Several pathological conditions including chronic hyperglycemia lead to Ang2 upregulation. Recent regulatory approval of the bi-specific antibody, faricimab, may improve long term outcomes in DME. It targets both the Ang/Tie and VEGF pathways. The YOSEMITE and RHINE were multicenter, double-masked, randomized non-inferiority phase 3 clinical trials that compared faricimab to aflibercept in eyes with center-involved DME. At 12 months of follow-up, faricimab demonstrated non-inferior vision gains, improved anatomic outcomes and a potential for extended dosing when compared to aflibercept. The 2-year results of the YOSEMITE and RHINE trials demonstrated that the anatomic and functional results obtained at the 1 year follow-up were maintained. Short term outcomes of previously treated and treatment-naive eyes with DME that were treated with faricimab during routine clinical practice suggest a beneficial effect of faricimab over other agents. Targeting of Ang2 has been reported by several other means including VE-PTP inhibitors, integrin binding peptide and surrobodies.

2.
Radiology ; 310(3): e232255, 2024 03.
Article in English | MEDLINE | ID: mdl-38470237

ABSTRACT

Background Large language models (LLMs) hold substantial promise for medical imaging interpretation. However, there is a lack of studies on their feasibility in handling reasoning questions associated with medical diagnosis. Purpose To investigate the viability of leveraging three publicly available LLMs to enhance consistency and diagnostic accuracy in medical imaging based on standardized reporting, with pathology as the reference standard. Materials and Methods US images of thyroid nodules with pathologic results were retrospectively collected from a tertiary referral hospital between July 2022 and December 2022 and used to evaluate malignancy diagnoses generated by three LLMs-OpenAI's ChatGPT 3.5, ChatGPT 4.0, and Google's Bard. Inter- and intra-LLM agreement of diagnosis were evaluated. Then, diagnostic performance, including accuracy, sensitivity, specificity, and area under the receiver operating characteristic curve (AUC), was evaluated and compared for the LLMs and three interactive approaches: human reader combined with LLMs, image-to-text model combined with LLMs, and an end-to-end convolutional neural network model. Results A total of 1161 US images of thyroid nodules (498 benign, 663 malignant) from 725 patients (mean age, 42.2 years ± 14.1 [SD]; 516 women) were evaluated. ChatGPT 4.0 and Bard displayed substantial to almost perfect intra-LLM agreement (κ range, 0.65-0.86 [95% CI: 0.64, 0.86]), while ChatGPT 3.5 showed fair to substantial agreement (κ range, 0.36-0.68 [95% CI: 0.36, 0.68]). ChatGPT 4.0 had an accuracy of 78%-86% (95% CI: 76%, 88%) and sensitivity of 86%-95% (95% CI: 83%, 96%), compared with 74%-86% (95% CI: 71%, 88%) and 74%-91% (95% CI: 71%, 93%), respectively, for Bard. Moreover, with ChatGPT 4.0, the image-to-text-LLM strategy exhibited an AUC (0.83 [95% CI: 0.80, 0.85]) and accuracy (84% [95% CI: 82%, 86%]) comparable to those of the human-LLM interaction strategy with two senior readers and one junior reader and exceeding those of the human-LLM interaction strategy with one junior reader. Conclusion LLMs, particularly integrated with image-to-text approaches, show potential in enhancing diagnostic medical imaging. ChatGPT 4.0 was optimal for consistency and diagnostic accuracy when compared with Bard and ChatGPT 3.5. © RSNA, 2024 Supplemental material is available for this article.


Subject(s)
Thyroid Nodule , Humans , Female , Adult , Thyroid Nodule/diagnostic imaging , Retrospective Studies , Language , Neural Networks, Computer , ROC Curve
3.
Sao Paulo Med J ; 142(4): e20230142, 2024.
Article in English | MEDLINE | ID: mdl-38477775

ABSTRACT

CONTEXT: Scrub typhus, caused by Orientia tsutsugamushi, has a wide range of clinical manifestations, including meningoencephalitis, acute renal failure, pneumonitis, myocarditis, and septic shock. However, there are no documented cases of scrub typhus with hypokalemia. In this report, we present a case of scrub typhus with hypokalemia and multiple organ failure syndrome, highlighting the importance of electrolyte imbalance in patients with scrub typhus. CASE REPORT: A 59-year-old woman presented to the emergency department with abdominal pain that had been present for 1 day. On admission, the physical examination and laboratory test results indicated that the patient had renal, liver, and circulatory failure, and hypokalemia. She developed meningitis and disseminated intravascular coagulation during hospitalization. She recovered with appropriate management, and was discharged on day 17. CONCLUSION: This report highlights the potential for atypical presentations of scrub typhus, including a previously undocumented association with hypokalemia. Although the contribution of hypokalemia to the patient's clinical course remains uncertain, this case underscores the importance of considering electrolyte imbalance in the management of patients with scrub typhus. Further research is warranted to better understand the relationship between scrub typhus and electrolyte imbalance.


Subject(s)
Hypokalemia , Scrub Typhus , Shock, Septic , Female , Humans , Middle Aged , Multiple Organ Failure , Electrolytes
4.
São Paulo med. j ; São Paulo med. j;142(4): e20230142, 2024. graf
Article in English | LILACS-Express | LILACS | ID: biblio-1551077

ABSTRACT

ABSTRACT CONTEXT: Scrub typhus, caused by Orientia tsutsugamushi, has a wide range of clinical manifestations, including meningoencephalitis, acute renal failure, pneumonitis, myocarditis, and septic shock. However, there are no documented cases of scrub typhus with hypokalemia. In this report, we present a case of scrub typhus with hypokalemia and multiple organ failure syndrome, highlighting the importance of electrolyte imbalance in patients with scrub typhus. CASE REPORT: A 59-year-old woman presented to the emergency department with abdominal pain that had been present for 1 day. On admission, the physical examination and laboratory test results indicated that the patient had renal, liver, and circulatory failure, and hypokalemia. She developed meningitis and disseminated intravascular coagulation during hospitalization. She recovered with appropriate management, and was discharged on day 17. CONCLUSION: This report highlights the potential for atypical presentations of scrub typhus, including a previously undocumented association with hypokalemia. Although the contribution of hypokalemia to the patient's clinical course remains uncertain, this case underscores the importance of considering electrolyte imbalance in the management of patients with scrub typhus. Further research is warranted to better understand the relationship between scrub typhus and electrolyte imbalance.

5.
Biol Res ; 56(1): 64, 2023 Dec 02.
Article in English | MEDLINE | ID: mdl-38041162

ABSTRACT

BACKGROUND: Asthma is a heterogenous disease that characterized by airway remodeling. SYVN1 (Synoviolin 1) acts as an E3 ligase to mediate the suppression of endoplasmic reticulum (ER) stress through ubiquitination and degradation. However, the role of SYVN1 in the pathogenesis of asthma is unclear. RESULTS: In the present study, an ovalbumin (OVA)-induced murine model was used to evaluate the effect of SYVN1 on asthma. An increase in SYVN1 expression was observed in the lungs of mice after OVA induction. Overexpression of SYVN1 attenuated airway inflammation, goblet cell hyperplasia and collagen deposition induced by OVA. The increased ER stress-related proteins and altered epithelial-mesenchymal transition (EMT) markers were also inhibited by SYVN1 in vivo. Next, TGF-ß1-induced bronchial epithelial cells (BEAS-2B) were used to induce EMT process in vitro. Results showed that TGF-ß1 stimulation downregulated the expression of SYVN1, and SYVN1 overexpression prevented ER stress response and EMT process in TGF-ß1-induced cells. In addition, we identified that SYVN1 bound to SIRT2 and promoted its ubiquitination and degradation. SIRT2 overexpression abrogated the protection of SYVN1 on ER stress and EMT in vitro. CONCLUSIONS: These data suggest that SYVN1 suppresses ER stress through the ubiquitination and degradation of SIRT2 to block EMT process, thereby protecting against airway remodeling in asthma.


Subject(s)
Asthma , Transforming Growth Factor beta1 , Animals , Mice , Airway Remodeling , Asthma/chemically induced , Asthma/metabolism , Asthma/pathology , Epithelial-Mesenchymal Transition , Sirtuin 2/metabolism , Ubiquitination
6.
Rev. bras. med. esporte ; Rev. bras. med. esporte;29: e2022_0716, 2023. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1423586

ABSTRACT

ABSTRACT Introduction: Strengthening the optimization of soccer skills training and strengthening the prevention of sports injuries are important research topics for soccer development in the post-injury rehabilitation phase. Functional training control has been empirically shown to be effective in accelerating rehabilitation. Objective: Investigate the situation of sports injuries in soccer and the effect of optimizing skill training on people with sports injuries in functional training for rehabilitation. Methods: During a 6-week experiment, the experimental group was inserted into the functional training mode, while the control group performed traditional training. The functional training was performed thrice a week for one hour per session. After 6 weeks, physiological and functional data were compared, classified, and analyzed. Results: The total FMS score of the experimental group increased from 13.61 to 17.30, while that of the control group ranged from 14.04 to 15.54. Conclusion: Selecting multiple training methods focused on different sports skills, focusing on balance, strength, and coordination, can optimize the sports skills of soccer players who have sports injuries. The researched protocol was shown to improve the competitive level of athletes and reduce the risk of future sports injuries. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.


RESUMO Introdução: Reforçar a otimização do treinamento das habilidades futebolísticas e fortalecer a prevenção de lesões esportivas são tópicos de pesquisa importantes para o desenvolvimento do futebol na fase de reabilitação pós-lesão. O controle de treinamento funcional tem se mostrado empiricamente eficaz no processo de aceleração da reabilitação. Objetivo: Investigar a situação das lesões esportivas no futebol e o efeito da otimização do treinamento de habilidades em pessoas com lesões esportivas inseridas no treinamento funcional para reabilitação. Métodos: Durante uma experiência com duração de 6 semanas, o grupo experimental foi inserido no modo de treinamento funcional, enquanto o grupo controle efetuou o treinamento tradicional. O treinamento funcional foi realizado três vezes por semana, com duração de uma hora por sessão. Após 6 semanas, os dados fisiológicos e funcionais foram comparados, classificados e analisados. Resultados: A pontuação total de FMS do grupo experimental aumentou de 13,61 para 17,30, enquanto a do grupo de controle oscilou de 14,04 para 15,54. Conclusão: Selecionar múltiplos métodos de treinamento focados nas distintas habilidades esportivas, com foco ao equilíbrio, força e coordenação pode otimizar as habilidades esportivas dos jogadores de futebol que tiveram lesões esportivas. O protocolo pesquisado mostrou-se capaz de melhorar o nível competitivo dos atletas e reduzir o risco de lesões esportivas futuras. Nível de evidência II; Estudos terapêuticos - investigação dos resultados do tratamento.


Resumen Introducción: Reforzar la optimización del entrenamiento de habilidades futbolísticas y reforzar la prevención de lesiones deportivas son temas de investigación importantes para el desarrollo del fútbol en la fase de rehabilitación posterior a la lesión. El control del entrenamiento funcional ha demostrado empíricamente su eficacia en el proceso de aceleración de la rehabilitación. Objetivo: Investigar la situación de las lesiones deportivas en el fútbol y el efecto de la optimización del entrenamiento de habilidades en personas con lesiones deportivas sometidas a entrenamiento funcional para su rehabilitación. Métodos: Durante un experimento de 6 semanas, el grupo experimental se insertó en la modalidad de entrenamiento funcional, mientras que el grupo de control realizó un entrenamiento tradicional. El entrenamiento funcional se realizó tres veces por semana, con una duración de una hora por sesión. Tras 6 semanas, se compararon, clasificaron y analizaron los datos fisiológicos y funcionales. Resultados: La puntuación total de FMS del grupo experimental aumentó de 13,61 a 17,30, mientras que la del grupo de control osciló entre 14,04 y 15,54. Conclusión: La selección de múltiples métodos de entrenamiento centrados en diferentes habilidades deportivas, centrándose en el equilibrio, la fuerza y la coordinación puede optimizar las habilidades deportivas de los jugadores de fútbol que sufrieron lesiones deportivas. El protocolo investigado demostró ser capaz de mejorar el nivel competitivo de los deportistas y reducir el riesgo de futuras lesiones deportivas. Nivel de evidencia II; Estudios terapéuticos - investigación de los resultados del tratamiento.

7.
J Virol ; 96(18): e0072522, 2022 09 28.
Article in English | MEDLINE | ID: mdl-36043875

ABSTRACT

Begomoviruses are members of the family Geminiviridae, a large and diverse group of plant viruses characterized by a small circular single-stranded DNA genome encapsidated in twinned quasi-icosahedral virions. Cultivated tomato (Solanum lycopersicum L.) is particularly susceptible and is infected by >100 bipartite and monopartite begomoviruses worldwide. In Brazil, 25 tomato-infecting begomoviruses have been described, most of which are bipartite. Tomato mottle leaf curl virus (ToMoLCV) is one of the most important of these and was first described in the late 1990s but has not been fully characterized. Here, we show that ToMoLCV is a monopartite begomovirus with a genomic DNA similar in size and genome organization to those of DNA-A components of New World (NW) begomoviruses. Tomato plants agroinoculated with the cloned ToMoLCV genomic DNA developed typical tomato mottle leaf curl disease symptoms, thereby fulfilling Koch's postulates and confirming the monopartite nature of the ToMoLCV genome. We further show that ToMoLCV is transmitted by whiteflies, but not mechanically. Phylogenetic analyses placed ToMoLCV in a distinct and strongly supported clade with other begomoviruses from northeastern Brazil, designated the ToMoLCV lineage. Genetic analyses of the complete sequences of 87 ToMoLCV isolates revealed substantial genetic diversity, including five strain groups and seven subpopulations, consistent with a long evolutionary history. Phylogeographic models generated with partial or complete sequences predicted that the ToMoLCV emerged in northeastern Brazil >700 years ago, diversifying locally and then spreading widely in the country. Thus, ToMoLCV emerged well before the introduction of MEAM1 whiteflies, suggesting that the evolution of NW monopartite begomoviruses was facilitated by local whitefly populations and the highly susceptible tomato host. IMPORTANCE Worldwide, diseases of tomato caused by whitefly-transmitted geminiviruses (begomoviruses) cause substantial economic losses and a reliance on insecticides for management. Here, we describe the molecular and biological properties of tomato mottle leaf curl virus (ToMoLCV) from Brazil and establish that it is a NW monopartite begomovirus indigenous to northeastern Brazil. This answered a long-standing question regarding the genome of this virus, and it is part of an emerging group of these viruses in Latin America. This appears to be driven by widespread planting of the highly susceptible tomato and by local and exotic whiteflies. Our extensive phylogenetic studies placed ToMoLCV in a distinct strongly supported clade with other begomoviruses from northeastern Brazil and revealed new insights into the origin of Brazilian begomoviruses. The novel phylogeographic analysis indicated that ToMoLCV has had a long evolutionary history, emerging in northeastern Brazil >700 years ago. Finally, the tools used here (agroinoculation system and ToMoLCV-specific PCR test) and information on the biology of the virus (host range and whitefly transmission) will be useful in developing and implementing integrated pest management (IPM) programs targeting ToMoLCV.


Subject(s)
Begomovirus , Plant Diseases , Solanum lycopersicum , Animals , Begomovirus/classification , Begomovirus/physiology , Brazil , DNA, Single-Stranded , DNA, Viral/genetics , Genetic Variation , Genome, Viral/genetics , Hemiptera/virology , Solanum lycopersicum/virology , Phylogeny , Plant Diseases/virology
8.
Braz. J. Pharm. Sci. (Online) ; 58: e191086, 2022. tab, graf
Article in English | LILACS | ID: biblio-1394042

ABSTRACT

Abstract Fluoroquinolones are an important class of antimicrobial agents to manage infectious diseases. However, knowledge about how host bile acids are modified by fluoroquinolones is limited. We investigated and compared the impact of fluoroquinolones on circulating bile acid profiles and gut microbiota from in vivo studies. We administered ciprofloxacin (100 mg/kg/day) or moxifloxacin (40 mg/kg/day) orally to male Wistar rats for seven days. Fifteen bile acids (BAs) from the serum and large intestine were quantified by HPLC-MS/MS. The diversity of gut microbiota after ciprofloxacin and moxifloxacin treatment was analyzed using high-throughput, next-generation sequencing technology. The two fluoroquinolone-treated groups had different BA profiles. Ciprofloxacin significantly reduced the hydrophobicity index of the BA pool, reduced secondary BAs, and increased taurine-conjugated primary BAs in both the serum and large intestine as compared with moxifloxacin. Besides, ciprofloxacin treatment altered intestinal microbiota with a remarkable increase in Firmicutes to Bacteroidetes ratio, while moxifloxacin exerted no effect. What we found suggests that different fluoroquinolones have a distinct effect on the host BAs metabolism and intestinal bacteria, and therefore provide guidance on the selection of fluoroquinolones to treat infectious diseases.


Subject(s)
Animals , Male , Rats , Bile Acids and Salts , Comparative Study , Ciprofloxacin/analysis , Rats, Wistar , Gastrointestinal Microbiome , Moxifloxacin/analysis , Chromatography, High Pressure Liquid/methods , High-Throughput Nucleotide Sequencing , Hydrophobic and Hydrophilic Interactions , Intestine, Large/abnormalities , Anti-Infective Agents/pharmacology
9.
Rev. bras. med. esporte ; Rev. bras. med. esporte;27(spe2): 54-57, Apr.-June 2021. graf
Article in English | LILACS | ID: biblio-1280093

ABSTRACT

ABSTRACT Soft tissue injury is the most common disease in orthopedics, and it is also the most easily neglected disease in sports. Without timely and effective treatment, it is easy to develop into malignant strain and seriously affect life and sports. In view of this, the aim of this study is to analyze the effect and mechanism of traditional Chinese medicine gel in treating such injuries in the light of the characteristics of sports-related soft tissue injury. The right gastrocnemius muscle injury was simulated in 36 adult male rats. Chinese medicine gel and tincture were used to treat it. The contents of interleukin, alanine aminotransferase, blood urea nitrogen and prostaglandin E2 in the blood of rats under different courses of treatment were analyzed to explore recovery in four rats. The results showed that the levels of interleukin and prostaglandin E2 in the blood of rats treated with drugs were significantly lower than those in the control group (p<0.05), indicating that both drugs have obvious therapeutic effects on soft tissue injury. The content of interleukin in the blood of the Chinese medicine gel group was slightly lower than that of the tincture group, indicating that the Chinese medicine gel could affect the recovery of soft tissue injury by affecting leukocyte interleukin. This result is helpful in the treatment of soft tissue injury in sports and to further improve the therapeutic effect of traditional Chinese medicine gel.


RESUMO A lesão dos tecidos moles é a doença mais comum na ortopedia, e é também a doença mais facilmente negligenciada nos esportes. Sem tratamento ágil e eficaz, facilmente evolui para luxações malignas, afetando seriamente a vida e a prática de esportes. Em vista disso, o objetivo deste estudo é analisar o efeito e o mecanismo do gel da medicina tradicional chinesa no tratamento de tais lesões, com base nas características da lesão dos tecidos moles relacionada à prática esportiva. Estimulou-se lesão do músculo gastrocnêmio direito em 36 ratos adultos. O gel e a tintura chinesa foram usados para o tratamento. Foram analisados os conteúdos de interleucina, alanina aminotransferase, ureia sanguínea azoto e prostaglandina E2 no sangue dos ratos sob diferentes tratamentos, de modo a explorar a recuperação de quatro ratos. Os resultados mostraram que os níveis de interleucina e prostaglandina E2 no sangue dos ratos tratados com medicamentos eram significativamente inferiores aos do grupo controle (p<0.05), indicando que ambos os fármacos têm efeitos terapêuticos óbvios sobre lesões dos tecidos moles. O teor de interleucina no sangue do grupo gel chinês medicinal mostrou-se ligeiramente inferior ao do grupo tintura, indicando que o gel medicinal chinês pode afetar a recuperação da lesão nos tecidos moles, afetando o leucócito interleucina. Este resultado é útil para o tratamento de lesões dos tecidos moles relacionadas à prática esportiva e para melhorar ainda mais o efeito terapêutico do gel da medicina chinesa tradicional.


RESUMEN La lesión de los tejidos blandos es la enfermedad más común en la ortopedia, y es también la enfermedad más fácilmente descuidada en los deportes. Sin tratamiento ágil y eficaz, fácilmente evolucionan a luxaciones malignas, afectando seriamente la vida y la práctica de deportes. En vista de eso, el objetivo de este estudio es analizar el efecto y el mecanismo del gel de la medicina tradicional china en el tratamiento de tales lesiones, con base en las características de la lesión de los tejidos blandos relacionada a la práctica deportiva. Se estimuló lesión del músculo gastrocnemio derecho en 36 ratones adultos. El gel y la tintura china fueron usados para el tratamiento. Fueron analizados los contenidos de interleucina, alanina aminotransferasa, urea sanguínea, nitrógeno y prostaglandina E2 en la sangre de los ratones bajo diferentes tratamientos, de modo de explorar la recuperación de cuatro ratones. Los resultados mostraron que los niveles de interleucina y prostaglandina E2 en la sangre de los ratones tratados con medicamentos eran significativamente inferiores a los del grupo control (p<0.05), indicando que ambos fármacos tienen efectos terapéuticos obvios sobre lesiones de los tejidos blandos. El tenor de interleucina en la sangre del grupo gel chino medicinal se mostró ligeramente inferior al del grupo tintura, indicando que el gel medicinal chino puede afectar la recuperación de la lesión en los tejidos blandos, afectando el leucocito interleucina. Este resultado es útil para el tratamiento de lesiones de los tejidos blandos relacionadas a la práctica deportiva y para mejorar aún más el efecto terapéutico del gel de la medicina china tradicional.


Subject(s)
Animals , Rats , Ointments/therapeutic use , Muscle, Skeletal/injuries , Medicine, Chinese Traditional , Athletic Injuries/drug therapy , Blood Urea Nitrogen , Dinoprostone/blood , Interleukins/blood , Treatment Outcome , Alanine Transaminase/blood , Disease Models, Animal
10.
Clinics (Sao Paulo) ; 76: e1876, 2021.
Article in English | MEDLINE | ID: mdl-33787670

ABSTRACT

Although previous studies have indicated that statin therapy can effectively prevent the development of CIN, this observation remains controversial, especially in high-risk patients. A meta-analysis was performed to evaluate the efficacy of statin pretreatment for preventing the development of CIN in patients with chronic kidney disease (CKD) and to determine its effectiveness in various subgroups. We searched the online databases PubMed, EMBASE, and the Cochrane Library. RCTs that involved the comparison of the short-term moderate or high-dose statin pretreatment with placebo for CIN prevention in CKD patients undergoing angiography were included. The primary outcome was CIN prevalence. Seven RCTs comprising 4256 participants were investigated in this analysis. The risk of developing CIN in patients pretreated with statins was significantly lower than that in patients pretreated with placebo (RR=0.57, 95%CI=0.43-0.76, p=0.000). The SCr values of the statin group, when analyzed 48h after angiography were lower than those of the placebo group ((SMD=-0.15, 95% CI=-0.27 to -0.04, p=0.011). In the subgroup analysis, statin pretreatment could decrease the risk of CIN in CKD patients with DM (RR=0.54, 95% CI=0.39-0.76, p=0.000), but not in CKD patients without DM (RR=0.84, 95% CI=0.44-1.60, p=0.606). The efficacy of atorvastatin for preventing CIN was consistent with that observed with the use of rosuvastatin. The risk ratios (RR) were 0.51 (95% CI=0.32-0.81, p=0.004) and 0.60 (95% CI=0.41-0.88, p=0.009), respectively. Our study demonstrated that statin pretreatment could prevent the development of CIN in CKD patients. However, subgroup analysis demonstrated that statin pretreatment, despite being effective in preventing CIN in patients with CKD and DM, was not helpful for CKD patients without DM. Rosuvastatin and atorvastatin exhibited similar preventive effects with respect to CIN.


Subject(s)
Hydroxymethylglutaryl-CoA Reductase Inhibitors , Renal Insufficiency, Chronic , Contrast Media/adverse effects , Coronary Angiography , Humans , Hydroxymethylglutaryl-CoA Reductase Inhibitors/therapeutic use , Renal Insufficiency, Chronic/complications , Rosuvastatin Calcium/therapeutic use
11.
J Pediatr ; 230: 221-229.e5, 2021 03.
Article in English | MEDLINE | ID: mdl-33253732

ABSTRACT

OBJECTIVE: To examine the associations between body mass index (BMI) at 2-4 years and 5-7 years and age at peak height velocity (APHV), an objective measure of pubertal timing, among boys and girls from predominantly racial minorities in the US that have been historically underrepresented in this research topic. STUDY DESIGN: This study included 1296 mother-child dyads from the Boston Birth Cohort, a predominantly Black and low-income cohort enrolled at birth and followed prospectively during 1998-2018. The exposure was overweight or obesity, based on Centers for Disease Control and Prevention reference standards. The outcome was APHV, derived using a mixed effects growth curve model. Multiple regression was used to estimate the overweight or obesity-APHV association and control for confounders. RESULTS: Obesity at 2-4 years was associated with earlier APHV in boys (B in years, -0.19; 95% CI, -0.35 to -0.03) and girls (B, -0.22; 95% CI, -0.37 to -0.07). Obesity at 5-7 years was associated with earlier APHV in boys (B, -0.18; 95% CI, -0.32 to -0.03), whereas overweight and obesity at 5-7 years were both associated with earlier APHV in girls (overweight: B, -0.24; 95% CI, -0.40 to -0.08; obesity: B, -0.27; 95% CI, -0.40 to -0.13). With BMI trajectory, boys with persistent overweight or obesity and girls with overweight or obesity at 5-7 years, irrespective of overweight or obesity status at 2-4 years, had earlier APHV. CONCLUSIONS: This prospective birth cohort study found that overweight or obesity during 2-7 years was associated with earlier pubertal onset in both boys and girls. The BMI trajectory analyses further suggest that reversal of overweight or obesity may halt the progression toward early puberty.


Subject(s)
Body Height , Body Mass Index , Growth , Pediatric Obesity/epidemiology , Age Factors , Child , Child, Preschool , Female , Humans , Male , Prospective Studies , Sex Distribution , Time Factors
12.
Clinics ; Clinics;76: e1876, 2021. tab, graf
Article in English | LILACS | ID: biblio-1153953

ABSTRACT

Although previous studies have indicated that statin therapy can effectively prevent the development of CIN, this observation remains controversial, especially in high-risk patients. A meta-analysis was performed to evaluate the efficacy of statin pretreatment for preventing the development of CIN in patients with chronic kidney disease (CKD) and to determine its effectiveness in various subgroups. We searched the online databases PubMed, EMBASE, and the Cochrane Library. RCTs that involved the comparison of the short-term moderate or high-dose statin pretreatment with placebo for CIN prevention in CKD patients undergoing angiography were included. The primary outcome was CIN prevalence. Seven RCTs comprising 4256 participants were investigated in this analysis. The risk of developing CIN in patients pretreated with statins was significantly lower than that in patients pretreated with placebo (RR=0.57, 95%CI=0.43-0.76, p=0.000). The SCr values of the statin group, when analyzed 48h after angiography were lower than those of the placebo group ((SMD=-0.15, 95% CI=-0.27 to -0.04, p=0.011). In the subgroup analysis, statin pretreatment could decrease the risk of CIN in CKD patients with DM (RR=0.54, 95% CI=0.39-0.76, p=0.000), but not in CKD patients without DM (RR=0.84, 95% CI=0.44-1.60, p=0.606). The efficacy of atorvastatin for preventing CIN was consistent with that observed with the use of rosuvastatin. The risk ratios (RR) were 0.51 (95% CI=0.32-0.81, p=0.004) and 0.60 (95% CI=0.41-0.88, p=0.009), respectively. Our study demonstrated that statin pretreatment could prevent the development of CIN in CKD patients. However, subgroup analysis demonstrated that statin pretreatment, despite being effective in preventing CIN in patients with CKD and DM, was not helpful for CKD patients without DM. Rosuvastatin and atorvastatin exhibited similar preventive effects with respect to CIN.


Subject(s)
Humans , Hydroxymethylglutaryl-CoA Reductase Inhibitors/therapeutic use , Renal Insufficiency, Chronic/complications , Coronary Angiography , Contrast Media/adverse effects , Rosuvastatin Calcium/therapeutic use
13.
PLoS One ; 15(9): e0239617, 2020.
Article in English | MEDLINE | ID: mdl-32991614

ABSTRACT

Cadmium (Cd) is a toxic metal occurring in the environment naturally. Almond mushroom (Agaricus brasiliensis) is a well-known cultivated edible and medicinal mushroom. In the past few decades, Cd accumulation in A.brasiliensis has received increasing attention. However, the molecular mechanisms of Cd-accumulation in A. brasiliensis are still unclear. In this paper, a comparative transcriptome of two A.brasiliensis strains with contrasting Cd accumulation and tolerance was performed to identify Cd-responsive genes possibly responsible for low Cd-accumulation and high Cd-tolerance. Using low Cd-accumulating and Cd-tolerant (J77) and high Cd-accumulating and Cd-sensitive (J1) A.brasiliensis strains, we investigated 0, 2 and 5 mg L-1 Cd-effects on mycelium growth, Cd-accumulation and transcriptome revealed by RNA-Seq. A total of 57,884 unigenes were obtained. Far less Cd-responsive genes were identified in J77 mycelia than those in J1 mycelia (e.g., ABC transporters, ZIP Zn transporter, Glutathione S-transferase and Cation efflux (CE) family). The higher Cd-accumulation in J1 mycelia might be due to Cd-induced upregulation of ZIP Zn transporter. Cd impaired cell wall, cell cycle, DNA replication and repair, thus decreasing J1 mycelium growth. Cd-stimulated production of sulfur-containing compounds, polysaccharides, organic acids, trehalose, ATP and NADPH, and sequestration of Cd might be adaptive responses of J1 mycelia to the increased Cd-accumulation. DNA replication and repair had better stability under 2 mg L-1 Cd, but greater positive modifications under 5 mg L-1 Cd. Better stability of DNA replication and repair, better cell wall and cell cycle stability might account for the higher Cd-tolerance of J77 mycelia. Our findings provide a comprehensive set of DEGs influenced by Cd stress; and shed light on molecular mechanism of A.brasiliensis Cd accumulation and Cd tolerance.


Subject(s)
Agaricus/metabolism , Cadmium/metabolism , Transcriptome , ATP-Binding Cassette Transporters/genetics , ATP-Binding Cassette Transporters/metabolism , Agaricus/drug effects , Agaricus/genetics , Cadmium/toxicity , DNA Repair/drug effects , DNA Replication/drug effects , Drug Tolerance , Fungal Proteins/genetics , Fungal Proteins/metabolism , Gene Expression Profiling , Gene Expression Regulation, Fungal , Glutathione Transferase/genetics , Glutathione Transferase/metabolism , Mycelium/chemistry , Mycelium/drug effects , Mycelium/growth & development , Polysaccharides/metabolism , RNA, Fungal/chemistry , RNA, Fungal/metabolism , RNA-Seq
14.
Chemosphere ; 256: 127069, 2020 Oct.
Article in English | MEDLINE | ID: mdl-32447111

ABSTRACT

Pesticides are proposed as one reason for the worldwide decline in the reptile. Effects of pesticides on food intake and organ toxicity could affect wildlife populations dynamics. To explore the hepatotoxicity of alpha-cypermethrin (ACP) in reptiles, we designed a tri-trophic food chain with three concentrations (0, 2, and 20 mg/kgwet weight). Although the enzymes changes were similar between male and female lizards, the significant variations in anti-oxidative enzymes' activities, lactic dehydrogenase activities and acetylcholine esterase activities in liver and kidney suggesting that oxidative stress, decreased metabolic ability and neurotoxicity on lizards. The results of hepatic metabolomics showed that ACP could affect amino acid, energy and lipid metabolism on lizards. Comparing with female lizards, there were more significant changes of metabolites in male lizards. The histopathology analysis in the liver (such as hepatic lobule congestion and hepatocyte vacuolation) and kidney (such as renal tubule necrosis and glomerulus necrosis), dose- and gender dependent changes of lesions suggested the functions of organ were damaged. In summary, the reduction of detoxification and elimination capacities of the liver and kidney showed dose/gender-dependent in lizards.


Subject(s)
Pesticides/toxicity , Pyrethrins/toxicity , Animals , Chemical and Drug Induced Liver Injury/pathology , Dose-Response Relationship, Drug , Female , Food Chain , Kidney/drug effects , Kidney/metabolism , Liver/drug effects , Liver/metabolism , Lizards/metabolism , Male , Neurotoxicity Syndromes/pathology , Oxidative Stress/physiology , Pesticides/metabolism
15.
Arq Bras Cardiol ; 113(3): 367-372, 2019.
Article in English, Portuguese | MEDLINE | ID: mdl-31482945

ABSTRACT

BACKGROUND: In clinical observation, patients with acute coronary syndrome complicated with peripheral artery disease have poor prognosis, so the relationship between the diseases and clinical characteristics need to be further explored. OBJECTIVE: This study aims to investigate clinical characteristics and independent risk factors for in-hospital adverse events in acute coronary syndrome patients with a history of peripheral arterial disease (PAD). METHODS: A total of 5,682 patients with acute coronary syndrome were included into this study. These patients were divided into two groups according to the presence or absence of a history of PAD: PAD group (n = 188), and non-PAD (control) group (n = 5,494). Then, the clinical characteristics and incidence of in-hospital adverse events were analyzed; p < 0.05 was considered statistically significant. RESULTS: The age of PAD patients was higher than that in the control group (65.5 ± 10.3 years vs. 58.6 ± 11 years, p < 0.001), and the proportion of PAD patients with diabetes history and stroke history was higher than that in the control group (73 [39%] vs. 1472 [26.8%], p = 0.018; 36 [19.3%] vs. 396 [7.2%], p < 0.001). The multivariate logistic regression analysis between groups based on in-hospital adverse events revealed that a history of PAD (OR = 1.791, p = 0.01), a history of diabetes (OR = 1.223, p = 0.001), and age of > 65 years old (OR = 4.670, p < 0.001) were independent risk factors for in-hospital adverse events. CONCLUSION: A history of PAD, advanced age, and a history of diabetes are independent risk factors for in-hospital adverse events in patients with acute coronary syndrome.


Subject(s)
Acute Coronary Syndrome/complications , Peripheral Arterial Disease/complications , Adult , Aged , Aged, 80 and over , Atherosclerosis/complications , Case-Control Studies , Diabetes Mellitus, Type 2/complications , Female , Humans , Male , Middle Aged , Risk Factors
16.
Int. braz. j. urol ; 45(5): 916-924, Sept.-Dec. 2019. graf
Article in English | LILACS | ID: biblio-1040072

ABSTRACT

ABSTRACT Objective This study aims to investigate the association of filamin A with the function and morphology of prostate cancer (PCa) cells, and explore the role of filamin A in the development of PCa, in order to analyze its significance in the evolvement of PCa. Materials and Methods A stably transfected cell line, in which filamin A expression was suppressed by RNA interference, was first established. Then, the effects of the suppression of filamin A gene expression on the biological characteristics of human PCa LNCaP cells were observed through cell morphology, in vitro cell growth curve, soft agar cloning assay, and scratch test. Results A cell line model with a low expression of filamin A was successfully constructed on the basis of LNCaP cells. The morphology of cells transfected with plasmid pSilencer-filamin A was the following: Cells were loosely arranged, had less connection with each other, had fewer tentacles, and presented a fibrous look. The growth rate of LNCap cells was faster than cells transfected with plasmid pSilencer-filamin A (P <0.05). The clones of LNCap cells in the soft agar cloning assay was significantly fewer than that of cells stably transfected with plasmid pSilencer-filamin A (P <0.05). Cells stably transfected with plasmid pSilencer-filamin A presented with a stronger healing and migration ability compared to LNCap cells (healing rate was 32.2% and 12.1%, respectively; P <0.05). Conclusion The expression of the filamin A gene inhibited the malignant development of LNCap cells. Therefore, the filamin A gene may be a tumor suppressor gene.


Subject(s)
Humans , Male , Prostatic Neoplasms/pathology , Filamins/analysis , Filamins/physiology , Plasmids , Prostatic Neoplasms/genetics , Tetrazolium Salts , Time Factors , Wound Healing/physiology , Transfection/methods , Cells, Cultured , Blotting, Western , Colorimetry/methods , Cell Line, Tumor , Cell Proliferation , Filamins/genetics , Formazans
17.
Arq. bras. cardiol ; Arq. bras. cardiol;113(3): 367-372, Sept. 2019. tab
Article in English | LILACS | ID: biblio-1038562

ABSTRACT

Abstract Background: In clinical observation, patients with acute coronary syndrome complicated with peripheral artery disease have poor prognosis, so the relationship between the diseases and clinical characteristics need to be further explored. Objective: This study aims to investigate clinical characteristics and independent risk factors for in-hospital adverse events in acute coronary syndrome patients with a history of peripheral arterial disease (PAD). Methods: A total of 5,682 patients with acute coronary syndrome were included into this study. These patients were divided into two groups according to the presence or absence of a history of PAD: PAD group (n = 188), and non-PAD (control) group (n = 5,494). Then, the clinical characteristics and incidence of in-hospital adverse events were analyzed; p < 0.05 was considered statistically significant. Results: The age of PAD patients was higher than that in the control group (65.5 ± 10.3 years vs. 58.6 ± 11 years, p < 0.001), and the proportion of PAD patients with diabetes history and stroke history was higher than that in the control group (73 [39%] vs. 1472 [26.8%], p = 0.018; 36 [19.3%] vs. 396 [7.2%], p < 0.001). The multivariate logistic regression analysis between groups based on in-hospital adverse events revealed that a history of PAD (OR = 1.791, p = 0.01), a history of diabetes (OR = 1.223, p = 0.001), and age of > 65 years old (OR = 4.670, p < 0.001) were independent risk factors for in-hospital adverse events. Conclusion: A history of PAD, advanced age, and a history of diabetes are independent risk factors for in-hospital adverse events in patients with acute coronary syndrome.


Resumo Fundamento: Na observação clínica, os pacientes com síndrome coronariana aguda com doença arterial periférica têm prognóstico ruim, portanto, a relação entre as doenças e as características clínicas precisa ser mais explorada. Objetivos: Este estudo tem o objetivo de investigar características clínicas e fatores de risco independentes para eventos adversos hospitalares em pacientes com síndrome coronariana aguda e história de doença arterial periférica (DAP). Métodos: Foram incluídos no estudo 5682 pacientes com síndrome coronariana aguda. Os pacientes foram divididos em dois grupos de acordo com a presença ou ausência de DAP prévia: grupo DAP (n = 188) e grupo sem DAP (n = 5494, grupo controle). Em seguida, foram analisadas características clínicas e a incidência de eventos adversos hospitalares nesses grupos; um p < 0,05 foi considerado estatisticamente significativo. Resultados: A idade dos pacientes com DAP foi maior que a idade do grupo controle (65,5 ± 10,3 anos vs. 58,6 ± 11 anos, p < 0,001), e a proporção de pacientes com história de diabetes ou acidente vascular cerebral foi maior no grupo DAP que no grupo controle [73 (39%) vs. 1472 (26,8%), p = 0,018; 36 (19,3%) vs. 396 (7,2%), p < 0,001). A análise de regressão logística multivariada para eventos adversos hospitalares mostrou que história de DAP (OR = 1,791, p = 0,01), história de diabetes (OR = 1,223, p = 0,001), e idade >65 anos de idade (OR = 4,670, p < 0,001) foram fatores de risco independentes para eventos adversos hospitalares. Conclusão: DAP prévia, idade avançada, e história de diabetes são fatores de risco independentes para eventos adversos hospitalares em pacientes com síndrome coronariana aguda.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Aged, 80 and over , Acute Coronary Syndrome/complications , Peripheral Arterial Disease/complications , Case-Control Studies , Risk Factors , Diabetes Mellitus, Type 2/complications , Atherosclerosis/complications
18.
Biosci. j. (Online) ; 35(4): 1276-1289, july/aug. 2019. ilus, tab, graf
Article in English | LILACS | ID: biblio-1048933

ABSTRACT

In this study, leftover roots of Sansing green onions grown without toxic chemicals in Sansing Township, Ilan County, Taiwan were used as a raw material of skincare products. The raw material was extracted from the green onion roots by ultrasound in a low-temperature, safe and pollution-free environment. We hope to develop cleansers and other facial care products made of this natural, environmentally friendly, safe and affordable raw material so that people with sensitive skin can also use these products. We also hope that this study can contribute to circular economy and achieve the goal of green innovation by recycling the leftover roots. In terms of anti-oxidation, the DPPH free radical scavenging ability of 2.5 mg/mL green onion root extract was equivalent to 98% of that of 1 mg/mL BHT; the Fe2+ chelating ability was equivalent to 87.0% of that of 0.02 mg/mL EDTA; the superoxide anions scavenging ability of 2.5 mg/mL green onion root extract was equivalent to 84.2% of that of 1 mg/mL BHT and 80.4% of that of 0.05 mg/mL vitamin C. With respect to melanin synthesis inhibition, the green onion root extract's ability to inhibit dopachrome, the intermediate product of melanin, was positively correlated to its concentration, i.e., the higher the concentration of the green onion root extract, the better the inhibition ability. The IC50 of green onion root extract was 1.83 mg/mL, while, for comparison, the IC50 of vitamin C was 0.62 mg/mL. Furthermore, according to the cell survival assay, no obvious cytotoxic effect was found with the increase in the concentration of the green onion root extract. The whitening effect improved after 30 days of test. The improvement rate was 5.6% for 2.5 mg/mL green onion root extract, 3.1% for 1.25 mg/mL extract, and 1.7% for 0.625 mg/mL extract. The moisture retention also improved after 30 days of test. The moisture retention improvement rate was 22.7% for 2.5 mg/mL green onion root extract, 21.6% for 1.25 mg/mL extract, and 15.4% for 0.625 mg/mL extract. Based on the experiments, the green onion root extract obtained from ultrasound not only did not cause skin allergy and irritation but also showed anti-aging, melanin synthesis inhibition, whitening and moisture retention effects. The results showed that the green onion root extract can improve the moisture retention and whitening effect of the mask.


Neste estudo, restos de raízes de cebolinhas Sansing, cultivadas sem produtos químicos tóxicos no município de Sansing, Condado de Ilan, Taiwan, foram utilizadas como matéria-prima de produtos para a pele. A matéria-prima foi extraída das raízes de cebolinha por ultrassom em um ambiente de baixa temperatura, seguro e livre de poluição. Esperamos desenvolver produtos de limpeza e outros produtos para cuidados faciais produzidos com essa matéria-prima natural, ecologicamente correta, segura e acessível, para Improvement rate (%) Moisture retention Whitening effect 7.65 1.29 que pessoas com pele sensível também possam usar esses produtos. Também esperamos que este estudo possa contribuir para a economia circular e alcançar o objetivo da inovação ecológica, reciclando restos das raízes. Em termos de anti-oxidação, a capacidade de sequestro do radical livre DPPH de 2,5 mg/mL de extrato de raiz de cebolinha foi equivalente a 98% de 1 mg/mL de BHT; a capacidade quelante do Fe2+ foi equivalente a87,0% de 0,02 mg/mL de EDTA; a capacidade de sequestro de ânions superóxidos de 2,5 mg/mL de extrato de raiz de cebolinha foi equivalente a 84,2% de 1 mg/mL BHT e 80,4% de 0,05 mg/mL de vitamina C. No que diz respeito à inibição da síntese de melanina, a capacidade do extrato de raiz de cebolinha de inibir o dopacrômio, o metabolito intermediário de melanina, foi positivamente correlacionada com a sua concentração, ou seja, quanto maior a concentração do extrato de raiz de cebolinha, maior a capacidade de inibição. O IC50 de extrato de raiz de cebolinha foi de 1,83 mg/mL, enquanto que, por comparação, o IC50 de vitamina C foi de 0,62mg/mL. Além disso, de acordo com o ensaio de sobrevivência celular, nenhum efeito citotóxico foi observado com o aumento da concentração do extrato de raiz de cebolinha. O efeito de branqueamento melhora após 30 dias de ensaio. A melhoria foi de 5,6% para 2,5 mg/mL de extrato de raiz de cebolinha, 3,1% para 1,25 mg/mL de extrato e 1,7% para 0,625 mg/mL de extrato. A retenção de umidade também melhorou depois de 30 dias de teste. A taxa de melhoria de retenção de umidade foi de 22,7% para 2,5 mg/mL de extrato de raiz de cebolinha, 21,6% para 1,25 mg/mL de extrato, e 15,4% para 0,625 mg/mL de extrato.Com base nas experiências efetuadas, o extrato de raiz de cebolinha obtida por ultrassom não só não causa alergia nem irritação da pele, mas também demonstrou atividade anti-envelhecimento, inibição da síntese de melanina, capacidade de branqueamento e retenção de umidade. Os resultados mostraram que o extrato de raiz de cebolinha pode melhorar a retenção de umidade e efeito de branqueamento da máscara.


Subject(s)
Plant Roots , Onions , Cosmetics , Antioxidants
19.
Int Braz J Urol ; 45(5): 916-924, 2019.
Article in English | MEDLINE | ID: mdl-31268639

ABSTRACT

OBJECTIVE: This study aims to investigate the association of filamin A with the function and morphology of prostate cancer (PCa) cells, and explore the role of filamin A in the development of PCa, in order to analyze its significance in the evolvement of PCa. MATERIALS AND METHODS: A stably transfected cell line, in which filamin A expression was suppressed by RNA interference, was first established. Then, the effects of the suppression of filamin A gene expression on the biological characteristics of human PCa LNCaP cells were observed through cell morphology, in vitro cell growth curve, soft agar cloning assay, and scratch test. RESULTS: A cell line model with a low expression of filamin A was successfully constructed on the basis of LNCaP cells. The morphology of cells transfected with plasmid pSilencer-filamin A was the following: Cells were loosely arranged, had less connection with each other, had fewer tentacles, and presented a fibrous look. The growth rate of LNCap cells was faster than cells transfected with plasmid pSilencer-filamin A (P<0.05). The clones of LNCap cells in the soft agar cloning assay was significantly fewer than that of cells stably transfected with plasmid pSilencer-filamin A (P<0.05). Cells stably transfected with plasmid pSilencer-filamin A presented with a stronger healing and migration ability compared to LNCap cells (healing rate was 32.2% and 12.1%, respectively; P<0.05). CONCLUSION: The expression of the filamin A gene inhibited the malignant development of LNCap cells. Therefore, the filamin A gene may be a tumor suppressor gene.


Subject(s)
Filamins/analysis , Filamins/physiology , Prostatic Neoplasms/pathology , Blotting, Western , Cell Line, Tumor , Cell Proliferation , Cells, Cultured , Colorimetry/methods , Filamins/genetics , Formazans , Humans , Male , Plasmids , Prostatic Neoplasms/genetics , Tetrazolium Salts , Time Factors , Transfection/methods , Wound Healing/physiology
20.
Biosci. j. (Online) ; 34(4): 1102-1113, july/aug. 2018.
Article in English | LILACS | ID: biblio-967291

ABSTRACT

This study aims to develop rice bran-based skin care products with moisturizing, whitening and anti-wrinkle effects similar to Pitera (a natural by-product of sake lees fermentation) but without alcohol irritation for sensitive skin. To achieve this objective, bran from organic indica rice was fermented by lactic acid bacteria in a safe and pollution-free environment. In terms of anti-oxidation, the DPPH .free radical scavenging ability of 100.0 mg/mL bran fermentation solution was 71.4% of that of vitamin C of the same concentration; and its Fe2+ chelating ability was 79.0% of that of EDTA of the same concentration. Moreover, the superoxide anion scavenging ability of 10.0 mg/mL bran fermentation solution was equivalent to 42.9% of that of BHT of similar concentration. With respect to inhibition of melanin synthesis, the bran fermentation solution's ability to inhibit the synthesis of dopachrome, the intermediate of melanin, was positively correlated to its concentration, i.e., the higher the concentration of the bran fermentation solution was, the better the inhibition ability was. The IC50 of bran fermentation solution was 9.23 mg/mL while, for comparison, that of arbutin was 0.52 mg/mL. Furthermore, according to the cell survival assay, no obvious cytotoxic effect was found with the increase of the concentration of the bran fermentation solution. As for whitening evaluation, the whitening improvement rate was 9.29% in 20% dilution, 5.36% in 15% dilution, 3.69% in 10% dilution, 2.43% in 5% dilution, 0.35% in 1% dilution in a 30-day test. In the moisturizing evaluation, the moisturizing improvement rate was 44.31% in 20% dilution, 20.48% in 15% dilution, 7.68% in 10% dilution, 6.02% in 5% dilution and 2.02% in 1% dilution. Based on the experimental results, the alcohol-free rice bran fermentation solution not only did not cause irritation but also had antiaging, melanin synthesis inhibition, whitening and moisturizing effects. Therefore, it is advisable to add rice bran fermentation solution to cleaning mousse, shower gel, serum and essence to turn bran from compost of agricultural waste (cradle to grave) into a natural raw material (cradle to cradle) of the cosmetic industry, creating new value of rice bran.


Este estudo tem como objetivo desenvolver produtos de cuidados com a pele baseados em farelo de arroz com hidratação, branqueamento e efeitos antiarrugas semelhantes à Pitera (um subproduto natural da fermentação de sauces), mas sem irritação com álcool para a pele sensível. Para alcançar esse objetivo, o farelo do arroz indica orgânico foi fermentado por bactérias do ácido lático em um ambiente seguro e livre de poluição. Em termos de antioxidação, a capacidade de eliminação radical de DPPH.free de 100,0 mg / mL de solução de fermentação de farelo foi de 71,4% da vitamina C da mesma concentração; E sua capacidade de quelação Fe2 + foi de 79,0% da EDTA da mesma concentração. Além disso, a capacidade de eliminação de aniões superóxido de 10,0 mg / mL de solução de fermentação de farelo era equivalente a 42,9% da BHT de concentração similar. Com relação à inibição da síntese de melanina, a capacidade da solução de fermentação do farelo de inibir a síntese do dopachrome, o intermediário da melanina, correlacionou-se positivamente com sua concentração, ou seja, quanto maior a concentração da solução de fermentação do farelo, melhor a capacidade de inibição estava. A solução de IC50 de fermentação de farelo foi de 9,23 mg / mL enquanto que, para comparação, a arbutina era de 0,52 mg / mL. Além disso, de acordo com o ensaio de sobrevivência celular, nenhum efeito citotóxico óbvio foi encontrado com o aumento da concentração da solução de fermentação de farelo. Quanto à avaliação do branqueamento, a taxa de branqueamento foi de 9,29% na diluição de 20%, 5,36% na diluição de 15%, 3,69% na diluição de 10%, 2,43% na diluição de 5%, 0,35% na diluição de 1% em um teste de 30 dias . Na avaliação hidratante, a taxa de melhora hidratante foi de 44,31% em 20% de diluição, 20,48% em diluição de 15%, 7,68% em diluição de 10%, 6,02% em diluição de 5% e 2,02% em diluição a 1%. Com base nos resultados experimentais, a solução de fermentação de farelo de arroz sem álcool não só não causou irritação, mas também teve anti-envelhecimento, inibição da síntese de melanina, branqueamento e efeitos hidratantes. Portanto, é aconselhável adicionar solução de fermentação de farelo de arroz para mousse de limpeza, gel de banho, soro e essência para transformar o farelo do composto de resíduos agrícolas (berço a túmulo) em uma matéria-prima natural (berço para berço) da indústria de cosméticos, criando Novo valor do farelo de arroz.


Subject(s)
Bacteria , Efficacy , Lactic Acid , Cosmetics , Fermentation
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