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1.
Dermatol Surg ; 2024 Jul 02.
Artigo em Inglês | MEDLINE | ID: mdl-38954750

RESUMO

INTRODUCTION: Ingrown toenail is a very common nail disorder, and partial matricectomy by phenolization is considered the most effective treatment technique. However, the contact time of the phenol with the nail matrix remains debatable. OBJECTIVE: To evaluate the recurrence rate of ingrown toenail after partial matricectomy by phenol for 45 seconds. METHODS: A total of 1,460 surgeries were performed, with a photographic record of 802 pictures for a period of 6 months. The presence of any nail spicule or sign of ingrowth during follow-up was considered a recurrence. RESULTS: A total of 802 surgeries were evaluated, with the most affected nails being the right (49.3%) and left (48%) big toes and most frequently the lateral fold (54.5%). The recurrence rate was 0.75% at 3 months and 1.87% at 6 months, and the medial nail fold had a higher recurrence rate than the lateral nail fold. CONCLUSION: Forty-five seconds of contact time of 88% phenol with the nail matrix was enough and effective, resulting in low recurrence rates. Prospective studies are needed to better assess postoperative morbidity.

2.
Head Neck Pathol ; 18(1): 65, 2024 Jul 29.
Artigo em Inglês | MEDLINE | ID: mdl-39073499

RESUMO

Adenoid ameloblastoma is a newly recognized epithelial odontogenic tumor. Herein, we present the case of a 24-year-old male patient who exhibited swelling in the anterior region and right hemi-mandible. Computed tomography demonstrated the presence of a hypodense osteolytic lesion associated with an impacted tooth. Based on the clinical hypotheses of the dentigerous cyst, odontogenic keratocyst, and ameloblastoma, an incisional biopsy was performed, and the diagnosis of ameloblastoma was rendered. A surgical resection of the tumor was performed. Histopathological examination of the specimen revealed typical areas of ameloblastoma associated with ductiform structures and cell proliferation in a solid storiform pattern, features resembling those found in adenomatoid odontogenic tumor. Based on these findings, the diagnosis of adenoid ameloblastoma was rendered. The accurate diagnosis of this locally infiltrative tumor is essential due to its similarity to other odontogenic neoplasms.


Assuntos
Ameloblastoma , Neoplasias Mandibulares , Humanos , Masculino , Ameloblastoma/patologia , Adulto Jovem , Neoplasias Mandibulares/patologia , Tumores Odontogênicos/patologia
3.
Future Med Chem ; 16(15): 1537-1550, 2024 Aug 02.
Artigo em Inglês | MEDLINE | ID: mdl-38949866

RESUMO

Aim: This study aimed to enhance the aqueous dissolution of SRPK inhibitor N-(2-(piperidin-1-yl)-5-(trifluoromethyl)phenyl)isonicotinamide (SRPIN340).Materials & Methods: A complex with p-sulfonic calix[6]arene (Host) and SRPIN340 (Guest) was prepared, studied via 1H nuclear magnetic resonance (NMR) and theoretical calculations and biologically evaluated on cancer cell lines.Results & conclusion: The 1:1 host (H)/guest (G) complex significantly enhanced the aqueous dissolution of SRPIN340, achieving 64.8% water solubility as determined by 1H NMR quantification analysis. The H/G complex reduced cell viability by 75% for HL60, ∼50% for Nalm6 and Jurkat, and ∼30% for B16F10 cells. It exhibited greater cytotoxicity than free SRPIN340 against Jurkat and B16F10 cells. Theoretical studies indicated hydrogen bond stabilization of the complex, suggesting broader applicability of SRPIN340 across diverse biological systems.


[Box: see text].


Assuntos
Antineoplásicos , Calixarenos , Sobrevivência Celular , Calixarenos/química , Calixarenos/farmacologia , Humanos , Antineoplásicos/química , Antineoplásicos/farmacologia , Antineoplásicos/síntese química , Sobrevivência Celular/efeitos dos fármacos , Fenóis/química , Fenóis/farmacologia , Camundongos , Espectroscopia de Ressonância Magnética , Animais , Ácidos Sulfônicos/química , Ácidos Sulfônicos/antagonistas & inibidores , Ácidos Sulfônicos/farmacologia , Linhagem Celular Tumoral , Estrutura Molecular , Ensaios de Seleção de Medicamentos Antitumorais , Inibidores de Proteínas Quinases/química , Inibidores de Proteínas Quinases/farmacologia , Inibidores de Proteínas Quinases/síntese química , Proliferação de Células/efeitos dos fármacos , Piperidinas/química , Piperidinas/farmacologia
4.
Reprod Toxicol ; 128: 108635, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38936095

RESUMO

Tributyltin (TBT) is an endocrine-disrupting chemical (EDC) related to reproductive dysfunctions. However, few studies have investigated the effects of TBT exposure on mammary gland development. Thus, we assessed whether subacute TBT exposure causes irregularities in mammary gland development. We administered TBT (100 and 1,000 ng/kg/day for 30 days) to female rats from postnatal day (PND) 25 to PND 55, and mammary gland development, morphology, inflammation, collagen deposition, and protein expression were evaluated. Abnormal mammary gland development was observed in both TBT groups. Specifically, TBT exposure reduced the number of terminal end buds (TEBs), type 1 (AB1) alveolar buds, and type 2 (AB2) alveolar buds. An increase in the lobule and differentiation (DF) 2 score was found in the mammary glands of TBT rats. TBT exposure increased mammary gland blood vessels, mast cell numbers, and collagen deposition. Additionally, both TBT rats exhibited intraductal hyperplasia and TEB-like structures. An increase in estrogen receptor alpha (ERα), progesterone receptor (PR), and cytochrome P450 family 19 subfamily A member 1 (CYP19A1) - positive cells was observed in the mammary glands of TBT rats. A strong negative correlation was observed between CYP19A1- positive cells and TEB number. In addition, CYP19A1 - positive cells were positively correlated with mammary gland TEB-like structure, ductal hyperplasia, inflammation, and collagen deposition. Thus, these data suggest that TBT exposure impairs mammary gland development through the modulation of CYP19A1 signaling pathways in female rats.


Assuntos
Aromatase , Disruptores Endócrinos , Glândulas Mamárias Animais , Ratos Sprague-Dawley , Compostos de Trialquitina , Animais , Feminino , Compostos de Trialquitina/toxicidade , Glândulas Mamárias Animais/efeitos dos fármacos , Glândulas Mamárias Animais/patologia , Glândulas Mamárias Animais/crescimento & desenvolvimento , Glândulas Mamárias Animais/metabolismo , Disruptores Endócrinos/toxicidade , Aromatase/metabolismo , Aromatase/genética , Receptor alfa de Estrogênio/metabolismo , Ratos
5.
Sci Rep ; 14(1): 11457, 2024 05 20.
Artigo em Inglês | MEDLINE | ID: mdl-38769365

RESUMO

To compare two different wavelengths of the surgical contact diode laser (CDL) for producing a posterior laryngofissure in in-vivo pigs. Anesthetized pigs underwent a tracheostomy and an anterior laryngofissure through a cervicotomy. They were randomly selected for the CDL wavelength and Power, according to the peak of Power set at device (980nm wavelength: Ppeak power of 10 W, 15 W, and 20 W, or 1470 nm wavelength: Ppeak 3 W, 5 W, 7 W, 10 W). At the end of the experiment, the laryngotracheal specimen was extracted and sent for histology and morphometry measurements (incision size, depth, area, and lateral thermal damage). Hemodynamic data and arterial blood gases were recorded during the incisions. Statistical analysis of the comparisons between the parameters and groups had a level of significance of p < 0.05. Twenty-six pigs were divided into CDL 980 nm (n = 11) and 1470 nm (n = 15). There was a greater incision area at the thyroid level in the 980 nm CDL and a wider incision at the trachea level, with a larger distance between mucosa borders. There were no significant differences in the area of lateral thermal damage between the two groups and neither difference among the power levels tested. Both wavelengths tested showed similar results in the various combinations of power levels without significant differences in the lateral thermal damage. The posterior laryngofissure incision can be performed by either of the wavelengths at low and medium power levels without great difference on lateral thermal damage.


Assuntos
Laringe , Lasers Semicondutores , Animais , Suínos , Laringe/cirurgia , Terapia a Laser/métodos , Traqueia/cirurgia
6.
Colloids Surf B Biointerfaces ; 239: 113931, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38718475

RESUMO

This study revealed the potential of magnesium whitlockite [WH: Ca18Mg2(HPO4)2(PO4)12] nanoparticles (WH NPs) for anti-inflammatory and anti-cancer therapies. Although magnesium whitlockite possesses promising biological properties, its effects on inflammation and cancer remain unexplored. In this study, we address this gap by synthesizing WH NPs and demonstrating their multifaceted functionalities. Through detailed characterization, we revealed the synthesis pathway involving brushite as a precursor, with magnesium ions incorporated during hydrothermal treatment. WH NPs exhibited anti-inflammatory properties by significantly reducing the production of key inflammatory markers (NO, TNF-α, and IL-6). Furthermore, they display promising anti-cancer activity by inhibiting the proliferation of MDA-MB-231 breast cancer cells. Our findings not only establish a deeper understanding of WH NP synthesis but also highlight their potential for the development of innovative cancer and inflammatory treatments.


Assuntos
Anti-Inflamatórios , Antineoplásicos , Proliferação de Células , Magnésio , Nanopartículas , Humanos , Magnésio/química , Antineoplásicos/farmacologia , Antineoplásicos/química , Antineoplásicos/síntese química , Anti-Inflamatórios/farmacologia , Anti-Inflamatórios/química , Anti-Inflamatórios/síntese química , Proliferação de Células/efeitos dos fármacos , Nanopartículas/química , Linhagem Celular Tumoral , Animais , Tamanho da Partícula , Interleucina-6/metabolismo , Camundongos , Ensaios de Seleção de Medicamentos Antitumorais , Fator de Necrose Tumoral alfa/metabolismo , Sobrevivência Celular/efeitos dos fármacos , Propriedades de Superfície , Óxido Nítrico/metabolismo , Óxido Nítrico/biossíntese , Fosfatos de Cálcio
7.
Artigo em Inglês | MEDLINE | ID: mdl-38770186

RESUMO

Background: Spinal ventral root injuries generate significant motoneuron degeneration, which hinders full functional recovery. The poor prognosis of functional recovery can be attributed to the use or combination of different therapeutic approaches. Several molecules have been screened as potential treatments in combination with surgical reimplantation of the avulsed roots, the gold standard approach for such injuries. Among the studied molecules, human natural killer-1 (HNK-1) stands out as it is related to the stimulation of motor axon outgrowth. Therefore, we aimed to comparatively investigate the effects of local administration of an HNK-1 mimetic peptide (mp-HNK-1) and systemic treatment with ursolic acid (UA), another HNK-1 mimetic, after ventral root avulsion and reimplantation with heterologous fibrin biopolymer (HFB). Methods: Female mice of the isogenic strain C57BL/6JUnib were divided into five experimental groups: Avulsion, Reimplantation, mp-HNK-1 (in situ), and UA (systemic treatment). Mice were evaluated 2 and 12 weeks after surgery. Functional assessment was performed every four days using the Catwalk platform. Neuronal survival was analyzed by cytochemistry, and glial reactions and synaptic coverage were evaluated by immunofluorescence. Results: Treatment with UA elicited long-term neuroprotection, accompanied by a decrease in microglial reactions, and reactive astrogliosis. The neuroprotective effects of UA were preceded by increased glutamatergic and GABAergic inputs in the ventral spinal cord two weeks after injury. However, a single application of mp-HNK-1 had no significant effects. Functional analysis showed that UA treatment led to an improvement in motor and sensory recovery. Conclusion: Overall, the results indicate that UA is neuroprotective, acting on glial cells and synaptic maintenance, and the combination of these findings led to a better functional recovery.

8.
Rev. Odontol. Araçatuba (Impr.) ; 45(1): 50-58, jan.-abr. 2024. ilus
Artigo em Português | LILACS, BBO - Odontologia | ID: biblio-1553265

RESUMO

As indicações de tratamento das fraturas mandibulares em paciente pediátrico variam em conservador, fixação não rígida e interna rígida. Alterações no crescimento ósseo, disfunções na articulação temporomandibular e assimetrias faciais podem ser decorrentes ao insucesso do tratamento. O objetivo deste trabalho consiste em relatar abordagem cirúrgica em fratura de sínfise e côndilo mandibular bilateral em paciente pediátrico. Paciente gênero feminino, 09 anos de idade, foi encaminhada ao Hospital Geral do Estado - Bahia vítima de queda de nível, cursando com trauma em face. Apresentou queixa principal, referida pela progenitora, de dificuldades em fechar a boca. Ao exame físico, a paciente apresentou mobilidade atípica à manipulação da mandíbula, mordida aberta anterior, equimose sublingual, ausência das unidades dentárias 74 e 75, com abertura bucal regular e suturas em posição em região de mento. Ao exame de imagem de tomografia computadorizada da face, pôde-se notar sinais sugestivos de fratura em região de sínfise e côndilos mandibulares bilateral. Após diagnóstico das fraturas, a paciente foi submetida à cirurgia sob anestesia geral para redução e fixação das mesmas. Realizou-se acessos em ferimento na região mentual e retromandibular bilateral com posterior síntese das fraturas utilizando fixação interna rígida com placas do sistema 2.0mm, associada a odontossíntese na fratura de sínfise. Ao acompanhamento periódico, a eleição do tratamento cirúrgico para fraturas mandibulares em pacientes pediátricos, pode permitir segurança no crescimento ósseo mandibular e facial(AU)


The indications for treatment of mandibular fractures in pediatric patients vary from conservative, non-rigid fixation and rigid internal fixation. Changes in bone growth, temporomandibular joint disorders and facial asymmetries may be due to treatment failure. The objective of this work is to report a surgical approach to bilateral symphysis and mandibular condyle fractures in a pediatric patient. Female patient, 9 years old, was sent to the State General Hospital - Bahia, victim of a fall in level, suffering from trauma to the face. She presented a main complaint, mentioned by her mother, of difficulties in closing her mouth. On physical examination, the patient presented atypical mobility when manipulating the jaw, anterior open bite, sublingual ecchymosis, absence of dental units 74 and 75, with regular mouth opening and sutures in position in the chin region. When examining the computed tomography image of the face, signs suggestive of fracture in the region of the symphysis and bilateral mandibular condyles were noted. After diagnosis of the fractures, the patient underwent surgery under general anesthesia to reduce and fix them. Access was performed on a wound in the mental and bilateral retromandibular region with subsequent synthesis of the fractures using rigid internal fixation with 2.0mm system plates, associated with odontosynthesis in the symphysis fracture. With periodic monitoring, the choice of surgical treatment for mandibular fractures in pediatric patients can allow for safe mandibular and facial bone growth(AU)


Assuntos
Humanos , Feminino , Criança , Fixação Interna de Fraturas , Queixo/cirurgia , Queixo/lesões , Côndilo Mandibular/cirurgia , Côndilo Mandibular/lesões
9.
Int J Nanomedicine ; 19: 2655-2673, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38500680

RESUMO

Introduction: Immunotherapy has revolutionized cancer treatment by harnessing the immune system to enhance antitumor responses while minimizing off-target effects. Among the promising cancer-specific therapies, tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) has attracted significant attention. Methods: Here, we developed an ionizable lipid nanoparticle (LNP) platform to deliver TRAIL mRNA (LNP-TRAIL) directly to the tumor microenvironment (TME) to induce tumor cell death. Our LNP-TRAIL was formulated via microfluidic mixing and the induction of tumor cell death was assessed in vitro. Next, we investigated the ability of LNP-TRAIL to inhibit colon cancer progression in vivo in combination with a TME normalization approach using Losartan (Los) or angiotensin 1-7 (Ang(1-7)) to reduce vascular compression and deposition of extracellular matrix in mice. Results: Our results demonstrated that LNP-TRAIL induced tumor cell death in vitro and effectively inhibited colon cancer progression in vivo, particularly when combined with TME normalization induced by treatment Los or Ang(1-7). In addition, potent tumor cell death as well as enhanced apoptosis and necrosis was found in the tumor tissue of a group treated with LNP-TRAIL combined with TME normalization. Discussion: Together, our data demonstrate the potential of the LNP to deliver TRAIL mRNA to the TME and to induce tumor cell death, especially when combined with TME normalization. Therefore, these findings provide important insights for the development of novel therapeutic strategies for the immunotherapy of solid tumors.


Assuntos
Neoplasias do Colo , Lipossomos , Nanopartículas , Microambiente Tumoral , Animais , Camundongos , Ligantes , Apoptose , Neoplasias do Colo/tratamento farmacológico , Neoplasias do Colo/genética , Fator de Necrose Tumoral alfa , Ligante Indutor de Apoptose Relacionado a TNF/metabolismo
10.
Nursing (Ed. bras., Impr.) ; 27(309): 10151-10156, mar.2024. tab.
Artigo em Inglês, Português | LILACS, BDENF - Enfermagem | ID: biblio-1552328

RESUMO

Levantar e analisar a perspectiva de mulheres acerca da assistência recebida durante o parto. Método: estudo epidemiológico, observacional, de abordagem quantitativa e transversal. Os dados coletados foram compilados em tabelas e gráficos, analisados comparativamente entre si e com dados levantados na literatura científica. Resultados: as 80 participantes, com idade média de 26,6 anos, foram assistidas, integralmente, por enfermeiras obstetras. Houve predomínio das pardas (55,0%), solteiras (53,7%) e com renda familiar inferior a salários-mínimos (77,5%). Constatou-se alto nível de satisfação relacionado à assistência recebida, entretanto, o toque vaginal e a falta liberdade de se posicionar ao dar à luz foram as queixas mais frequentes, e que gerou certo grau de insatisfação. Conclusão: a amostra analisada demonstrou satisfação com os cuidados recebidos, porém os dois indicadores, com menor grau de satisfação, precisam ser repensados na prática obstétrica de modo a promover o bem-estar e a segurança da mulher.(AU)


To survey and analyze women's perspectives on the care they received during childbirth. Method: an epidemiological, observational, quantitative, cross-sectional study. The data collected was compiled into tables and graphs and analyzed in comparison with each other and with data found in scientific literature. Results: the 80 participants, with an average age of 26.6 years, were attended entirely by obstetric nurses. There was a predominance of brown women (55.0%), single women (53.7%) and women with a family income of less than one minimum wage (77.5%). There was a high level of satisfaction with the care received; however, vaginal touch and the lack of freedom to position oneself when giving birth were the most frequent complaints, which generated a certain degree of dissatisfaction. Conclusion: The sample analyzed showed satisfaction with the care received, but the two indicators with the lowest level of satisfaction need to be rethought in obstetric practice in order to promote women's well-being and safety.(AU)


Encuestar y analizar las perspectivas de las mujeres sobre la atención recibida durante el parto. Método: estudio epidemiológico, observacional, cuantitativo y transversal. Los datos recogidos se compilaron en tablas y gráficos y se analizaron en comparación entre sí y con los datos encontrados en la literatura científica. Resultados: las 80 participantes, con edad media de 26,6 años, fueron atendidas en su totalidad por enfermeras obstétricas. Hubo predominio de mujeres morenas (55,0%), solteras (53,7%) y con renta familiar inferior a un salario mínimo (77,5%). Hubo un alto grado de satisfacción con la atención recibida; sin embargo, el tacto vaginal y la falta de libertad para colocarse al dar a luz fueron las quejas más frecuentes, lo que generó cierto grado de insatisfacción. Conclusión: La muestra analizada mostró satisfacción con la atención recibida, pero los dos indicadores con menor nivel de satisfacción necesitan ser repensados en la práctica obstétrica para promover el bienestar y la seguridad de las mujeres.(AU)


Assuntos
Feminino , Gravidez , Saúde da Mulher , Humanização da Assistência , Violência Obstétrica
11.
Ther Deliv ; 2024 Mar 12.
Artigo em Inglês | MEDLINE | ID: mdl-38469701

RESUMO

Aim: This study explores chia oil, rich in ω-3 fatty acids and nutraceutical components, as a potential remedy for diseases, especially those linked to inflammation and cancer. Methods/materials: A chia oil-based nanoemulsion, developed through single emulsification, underwent comprehensive analysis using various techniques. In vitro and in vivo assays, including macrophage polarization, nitrite and cytokine production, cellular uptake and biodistribution, were conducted to assess the anti-inflammatory efficacy. Results & conclusion: Results reveal that the chia nanoemulsion significantly inhibits inflammation, outperforming pure oil with twice the efficacy. Enhanced uptake by macrophage-like cells and substantial accumulation in key organs indicate its potential as an economical and effective anti-inflammatory nanodrug, addressing global economic and health impacts of inflammation-related diseases.

12.
Int J Pharm ; 652: 123765, 2024 Mar 05.
Artigo em Inglês | MEDLINE | ID: mdl-38195032

RESUMO

Despite the successful use of the radiopharmaceutical radium-223 dichloride ([223Ra]RaCl2) for targeted alpha therapy of castration-resistant prostate cancer patients with bone metastases, some short-term side effects, such as diarrhea and vomiting, have been documented, causing patient discomfort. Hence, we prepared a nanosized micellar solution of [223Ra]RaCl2 and evaluated its biodistribution, pharmacokinetics, and induced biochemical changes in healthy mice up to 96 h after intraperitoneal administration as an alternative to overcome the previous limitations. In addition, we evaluated the bone specificity of micellar [223Ra]RaCl2 in patient-derived xenografts in the osteosarcoma model. The biodistribution studies revealed the high bone-targeting properties of the micellar [223Ra]RaCl2. Interestingly, the liver uptake remained significantly low (%ID/g = 0.1-0.02) from 24 to 96 h after administration. In addition, the micellar [223Ra]RaCl2 exhibited a significantly higher uptake in left (%ID/g = 0.85-0.23) and right (%ID/g = 0.76-0.24) kidneys than in small (%ID/g = 0.43-0.06) and large intestines (%ID/g = 0.24-0.09) over time, suggesting its excretion pathway is primarily through the kidneys into the urine, in contrast to the non-micellar [223Ra]RaCl2. The micellar [223Ra]RaCl2 also had low distribution volume (0.055 ± 0.003 L) and longer elimination half-life (28 ± 12 days). This nanosystem was unable to change the enzymatic activities of alanine aminotransferase, aspartate aminotransferase, gamma GT, glucose, and liquiform lipase in the treated mice. Finally, microscopic examination of the animals' osteosarcoma tumors treated with micellar [223Ra]RaCl2 indicated regression of the tumor, with large areas of necrosis. In contrast, in the control group, we observed tumor cellularity and cell anaplasia, mitotic figures and formation of neoplastic extracellular bone matrix, which are typical features of osteosarcoma. Therefore, our findings demonstrated the efficiency and safety of nanosized micellar formulations to minimize the gastrointestinal excretion pathway of the clinical radiopharmaceutical [223Ra]RaCl2, in addition to promoting regression of the osteosarcoma. Further studies must be performed to assess dose-response outcomes and organ/tissue dosimetry for clinical translation.


Assuntos
Neoplasias Ósseas , Osteossarcoma , Neoplasias de Próstata Resistentes à Castração , Humanos , Masculino , Animais , Camundongos , Compostos Radiofarmacêuticos/farmacocinética , Distribuição Tecidual , Eliminação Renal , Neoplasias Ósseas/tratamento farmacológico , Neoplasias Ósseas/radioterapia , Osteossarcoma/tratamento farmacológico , Neoplasias de Próstata Resistentes à Castração/patologia
13.
Br J Nutr ; 131(2): 193-201, 2024 01 28.
Artigo em Inglês | MEDLINE | ID: mdl-37605822

RESUMO

Fe-deficiency anaemia is a major public health concern in children under 5 years of age. TMPRSS6 gene, encoding matriptase-2 protein, is implicated in Fe homoeostasis and has been associated with anaemia and Fe status in various populations. The aim of this cross-sectional study was to investigate the associations between the single nucleotide polymorphism (SNP) TMPRSS6 rs855791 and biomarkers of anaemia and Fe deficiency in Brazilian children attending day care centres. A total of 163 children aged 6-42 months were evaluated. Socio-economic, demographic, biochemical, haematological, immunological and genotype data were collected. Multiple logistic and linear regressions with hierarchical selection were used to assess the effects of independent variables on categorised outcomes and blood marker concentrations. Minor allele (T) frequency of rs855791 was 0·399. Each copy of the T allele was associated with a 4·49-fold increased risk of developing anaemia (P = 0·005) and a 4·23-fold increased risk of Fe deficiency assessed by serum soluble transferrin receptor (sTfR) (P < 0·001). The dose of the T allele was associated with an increase of 0·18 mg/l in sTfR concentrations and reductions of 1·41 fl and 0·52 pg in mean corpuscular volume (MCV) and mean corpuscular haemoglobin (MCH), respectively. In conclusion, the T allele of SNP TMPRSS6 rs855791 was significantly associated with anaemia and Fe deficiency assessed by sTfR in Brazilian children attending day care centres. The effect was dose dependent, with each copy of the T allele being associated with lower MCV and MCH and higher concentrations of sTfR.


Assuntos
Anemia Ferropriva , Anemia , Deficiências de Ferro , Pré-Escolar , Humanos , Anemia/epidemiologia , Anemia/genética , Anemia Ferropriva/epidemiologia , Anemia Ferropriva/genética , Brasil/epidemiologia , Estudos Transversais , Hospital Dia , Proteínas de Membrana/genética , Polimorfismo de Nucleotídeo Único , Receptores da Transferrina , Serina Endopeptidases/genética , Serina Endopeptidases/metabolismo
14.
Int J Pharm ; 650: 123491, 2024 Jan 25.
Artigo em Inglês | MEDLINE | ID: mdl-37806508

RESUMO

The development of novel cell-based therapies has increased the necessity to improve the long-term storage of cells. The current method of cryopreservation is far from optimal, causing ice-associated mechanical and osmotic damage to sensitive cells. Cell encapsulation is emerging as a new strategy to overcome those current limitations; however, few data are applicable to slow freezing, with conflicting results and multiple experimental conditions. The objective of this research work was to evaluate the impact of capsule size and encapsulation method on cell survival and functionality after a conventional freezing protocol. To this end, cells were encapsulated in alginate beads of different sizes, spanning the range of 200-2000 µm thanks to multiple extrusion techniques and conditions, and further cryopreserved using a slow cooling rate (-1°C/min) and 10 % DMSO as cryoprotectant. Our data show that there is a strong correlation between bead size and cell survival after a slow cooling cryopreservation process, with cell viabilities ranging from 7 to 70 % depending on the capsule size, with the smallest capsules (230 µm) achieving the highest level of survival. The obtained results indicate that the beads' diameter, rather than their morphology or the technique used, plays a significant role in the post-thawing cell survival and functionality. These results show that a fine control of cell encapsulation in alginate hydrogels is required when it comes to overcoming the current limitations of long-term preservation techniques by slow cooling.


Assuntos
Dimetil Sulfóxido , Hidrogéis , Sobrevivência Celular , Criopreservação/métodos , Crioprotetores/farmacologia , Alginatos , Macrófagos
15.
Psico (Porto Alegre) ; 55(1): 42362, 2024.
Artigo em Inglês | LILACS | ID: biblio-1552566

RESUMO

During COVID-19 pandemic an increase electronic media (e-media) usage time was reported correlated to behavioral problems. This study verified the associations between e-media and behavioral/emotional problems in children in the context of the pandemic. Sample: Parents of 277 children aged 7-11 years old. Instruments: socioeconomic questionnaire; MAF-P and CBCL/6-18. Spearman's correlation analyses showed positive associations between the MAF-P and CBCL/6-18 scales. Adult games were correlated with 12 scales; websites for information/entertainment were associated with 6 scales, gambling online with one scale; electronic games and watching YouTube videos were associated with all 17 scales. In conclusion, overall, the results indicate the need of supervising children's e-media access considering the number and frequency of use and the elevated number of emotional and behavioral problems found among the evaluated group


Durante a pandemia da COVID-19 verificou-se aumento no tempo de uso de mídias eletrônicas (e-media) relacionado a problemas comportamentais. Este trabalho avaliou associações entre tempo de uso de e-media e problemas comportamentais/emocionais em crianças no contexto da pandemia. Contou com uma amostra de 277 responsáveis por crianças de 7-11 anos. Os instrumentos utilizados foram questionário socioeconômico, MAF-P e CBCL/6-18. As análises de correlação de Spearman apontaram associações positivas entre as e-media na MAF-P e escalas do CBCL/6-18. Os jogos adultos correlacionaram-se a 12 escalas; sites para informação/diversão foram associados a seis; apostar na internet a um; e jogos eletrônicos e ver vídeos no YouTube associaram-se a 17 escalas. Conclui-se, de modo geral, que os resultados indicam a necessidade de supervisão para acesso a e-media por crianças, considerando o número, a frequência de uso e o elevado número de problemas emocionais e comportamentais verificados no grupo estudado


Durante la pandemia de COVID-19, hubo un aumento en el tiempo dedicado al uso de medios electrónicos (e-media) relacionados con problemas de comportamiento. Este trabajo evaluó las asociaciones entre el tiempo de uso de los medios electrónicos y los problemas conductuales/emocionales en niños en el contexto de la pandemia. Muestra: 277 tutores de niños de 7 a 11 años. Instrumentos: socioeconómico, MAF-P y CBCL/6-18. Los análisis de correlación de Spearman mostraron asociaciones positivas entre los medios electrónicos en las escalas MAF-P y CBCL/6-18. Juegos para adultos correlacionados con 12 escalas; sitios de información/diversión asociados a 6; apostar en internet a las 1; los juegos electrónicos y ver videos en YouTube se asociaron con 17 escalas. Se concluye, en general, que los resultados indican la necesidad de supervisión para el acceso a e-media por parte de los niños, considerando el número y la frecuencia de uso y el elevado número de problemas emocionales y conductuales verificados en el grupo estudiado


Assuntos
Criança , Mídia Audiovisual
16.
Adv Rheumatol ; 64: 30, 2024. tab
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1556784

RESUMO

Abstract Background A cost of illness (COI) study aims to evaluate the socioeconomic burden that an illness imposes on society as a whole. This study aimed to describe the resources used, patterns of care, direct cost, and loss of productivity due to systemic lupus erythematosus (SLE) in Brazil. Methods This 12-month, cross-sectional, COI study of patients with SLE (ACR 1997 Classification Criteria) collected data using patient interviews (questionnaires) and medical records, covering: SLE profile, resources used, morbidities, quality of life (12-Item Short Form Survey, SF-12), and loss of productivity. Patients were excluded if they were retired or on sick leave for another illness. Direct resources included health-related (consultations, tests, medications, hospitalization) or non-health-related (transportation, home adaptation, expenditure on caregivers) hospital resources. Costs were calculated using the unit value of each resource and the quantity consumed. A gamma regression model explored cost predictors for patients with SLE. Results Overall, 300 patients with SLE were included (92.3% female, mean [standard deviation (SD)] disease duration 11.8 [7.9] years), of which 100 patients (33.3%) were on SLE-related sick leave and 46 patients (15.3%) had stopped schooling. Mean (SD) travel time from home to a care facility was 4.4 (12.6) hours. Antimalarials were the most commonly used drugs (222 [74.0%]). A negative correlation was observed between SF-12 physical component and SLE Disease Activity Index (- 0.117, p = 0.042), Systemic Lupus International CollaboratingClinics/AmericanCollegeofRheumatology Damage Index (- 0.115, p = 0.046), medications/day for multiple co-morbidities (- 0.272, p < 0.001), SLE-specific drugs/day (- 0.113, p = 0.051), and lost productivity (- 0.570, p < 0.001). For the mental component, a negative correlation was observed with medications/day for multiple co-morbidities (- 0.272, p < 0.001), SLE-specific medications/day (- 0.113, p = 0.051), and missed appointments (- 0.232, p < 0.001). Mean total SLE cost was US$3,123.53/patient/year (median [interquartile range (IQR)] US$1,618.51 [$678.66, $4,601.29]). Main expenditure was medication, with a median (IQR) cost of US$910.62 ($460, $4,033.51). Mycophenolate increased costs by 3.664 times (p < 0.001), and inflammatory monitoring (erythrocyte sedimentation rate or C-reactive protein) reduced expenditure by 0.381 times (p < 0.001). Conclusion These results allowed access to care patterns, the median cost for patients with SLE in Brazil, and the differences across regions driven by biological, social, and behavioral factors. The cost of SLE provides an updated setting to support the decision-making process across the country.

17.
Rev. Paul. Pediatr. (Ed. Port., Online) ; 42: e2023188, 2024. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1559164

RESUMO

ABSTRACT Objective: To describe the long-term health outcomes of neonates affected by necrotizing enterocolitis (NEC) and its implications for quality of life. Data source: This is an integrative review, conducted by searching the literature in the following databases: Virtual Health Library (BVS), Latin American and Caribbean Health Sciences Literature (LILACS), Medical Literature Analysis and Retrieval System Online (MEDLINE), and PubMed, using Health Sciences Descriptors (DeCS): "necrotizing enterocolitis," "quality of life," and "prognosis" combined with the Boolean operators AND and OR: "quality of life" OR "prognosis." Inclusion criteria were: publication period between 2012 and 2022. Data synthesis: A total of 1,010 studies were located, of which ten were selected to comprise the bibliographic sample of this review. Children with NEC are prone to exhibit cognitive neurological impairment, especially those who undergo surgical procedures due to more severe conditions. Motor development was considered below average when compared to healthy children, with more noticeable delays in fine and gross motor function development. The search for the relationship between NEC and quality of life revealed that this condition has a negative impact on the well-being of affected individuals. Conclusions: NEC has proven to be a serious condition contributing to high rates of morbidity and mortality in newborns, potentially leading to a reduction in the quality of life of affected patients.


RESUMO Objetivo: Descrever os desfechos em longo prazo na saúde de neonatos acometidos com enterocolite necrosante (ECN) e suas repercussões na qualidade de vida. Fontes de dados: Trata-se de uma revisão integrativa, realizada com base no levantamento da bibliografia nas bases de dados: Biblioteca Virtual em Saúde (BVS), Literatura Latino-Americana e do Caribe em Ciências da Saúde (Lilacs), Medical Literature Analysis and Retrieval System Online (Medline) e PubMed por meio dos Descritores em Ciências da Saúde (DeCS): "necrotizing enterocolitis", "quality of life" e "prognosis" combinados com os operadores booleanos AND e OR: "quality of life" OR "prognosis". Os critérios de inclusão foram: período de publicação entre 2012 e 2022; Síntese dos dados: Foram localizados 1.010 estudos, dos quais dez foram selecionados para compor a amostra bibliográfica desta revisão. As crianças com ECN são propensas a apresentar comprometimento neurológico cognitivo, principalmente aquelas submetidas a procedimentos cirúrgicos em razão de quadros mais graves. O desenvolvimento motor foi considerado abaixo da média se comparado ao de crianças saudáveis, com atraso mais perceptível no desenvolvimento de funções motoras finas e grossas. A busca pela relação entre enterocolite necrosante e qualidade vida trouxe como resultado que essa condição tem impacto negativo sobre o bem-estar dos indivíduos acometidos. Conclusões: A enterocolite necrosante mostrou-se como uma condição grave que contribui para altas taxas de morbimortalidade em recém-nascidos, sendo uma potencial causa para a redução da qualidade de vida dos pacientes acometidos.

18.
Int. j. cardiovasc. sci. (Impr.) ; 37: e20220075, 2024. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1534621

RESUMO

Abstract Hemostasis is a complex set of biological processes responsible for blood fluidity within normal vessels and for the physiological interruption of bleeding in cases of vascular injury. Bothrops moojeni snake venom is rich in bioactive compounds of pharmacological and clinical interest since its protein components are capable of interfering with many points of the hemostatic process. Here, we present the B. moojeni venom proteins that affect hemostasis and discuss their pharmacological and clinical potential. This systematic review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) protocol. Data were obtained from the CAPES Journal Portal database, using the terms "Bothrops" AND "hemostasis", in a search for scientific articles made available in the last 20 years. Many components isolated from B. moojeni snake venom are characterized for their effect on hemostasis and possible application in the diagnosis and treatment of hemostatic disorders.

19.
Rev. Pesqui. (Univ. Fed. Estado Rio J., Online) ; 16: 13236, jan.-dez. 2024. tab
Artigo em Inglês, Português | LILACS, BDENF - Enfermagem | ID: biblio-1562094

RESUMO

Objetivo: identificar os fatores associados à qualidade de vida no trabalho de enfermeiros intensivistas de Boa Vista, Roraima. Método: estudo descritivo-correlacional, realizado entre novembro/2022 e janeiro/2023 com 36 enfermeiros intensivistas de um hospital público. Resultados: predominaram profissionais do sexo feminino (66,7%), casado(a)/união estável (55,6%) e com tempo médio de atuação em UTI de 6,6 anos. A maioria foi diagnosticada com COVID-19 (91,7%), maior exigência no trabalho (97,2%), cansaço físico e mental (94,4%), insegurança quanto a proteção e EPI (58,3%), insônia (63,9%), irritação (72,2%), medo de perder amigos e parentes (91,7%), falta de apoio e reconhecimento dos superiores (69,4%). A qualidade de vida no trabalho apresentou a esfera Psicológica/Comportamental com maior pontuação (65,3) e a esfera Econômica/Política com menor pontuação (43,1). Conclusão: a pandemia refletiu negativamente sobre a qualidade de vida dos enfermeiros, pois é notório o elevado crescimento de profissionais que adoeceram fisicamente e mentalmente


Objective: to identify factors associated with quality of life at work among intensive care nurses in Boa Vista, Roraima. Method: descriptive-correlational study, carried out between November/2022 and January/2023 with 36 intensive care nurses from a public hospital. Results: professionals were predominantly female (66.7%), married/in a stable relationship (55.6%) and with an average time working in the ICU of 6.6 years. The majority were diagnosed with COVID-19 (91.7%), greater work demands (97.2%), physical and mental fatigue (94.4%), insecurity regarding protection and PPE (58.3%), insomnia (63.9%), irritation (72.2%), fear of losing friends and relatives (91.7%), lack of support and recognition from superiors (69.4%). Quality of life at work had the Psychological/Behavioral sphere with the highest score (65.3) and the Economic/Political sphere with the lowest score (43.1). Conclusion: the pandemic had a negative impact on the quality of life of nurses, as the high increase in professionals who became physically and mentally ill is notable


Objetivo: identificar factores asociados a la calidad de vida en el trabajo entre enfermeros de cuidados intensivos en Boa Vista, Roraima. Método: estudio descriptivo-correlacional, realizado entre noviembre/2022 y enero/2023 con 36 enfermeros de cuidados intensivos de un hospital público. Resultados: los profesionales eran predominantemente del sexo femenino (66,7%), casados/en pareja estable (55,6%) y con tiempo promedio de permanencia en la UTI de 6,6 años. La mayoría fueron diagnosticados con CO-VID-19 (91,7%), mayor exigencia laboral (97,2%), cansancio físico y mental (94,4%), inseguridad en cuanto a protección y EPI (58,3%), insomnio (63,9%), irritación (72,2% ), miedo a perder amigos y familiares (91,7%), falta de apoyo y reconocimiento de los superiores (69,4%). La calidad de vida en el trabajo tuvo el ámbito Psicológico/Conductual con la puntuación más alta (65,3) y el ámbito Económico/Político con la puntuación más baja (43,1). Conclusión: la pandemia tuvo impacto negativo en la calidad de vida de los enferme-ros, siendo notable el alto aumento de profesionales que enfermaron física y mentalmente


Assuntos
Humanos , Masculino , Feminino , COVID-19 , Condições de Trabalho , Unidades de Terapia Intensiva , Saúde Mental , Pessoal de Saúde , Enfermeiros de Saúde Pública
20.
Arch. pediatr. Urug ; 95(1): e801, 2024. ilus, tab
Artigo em Espanhol | LILACS, BNUY, UY-BNMED | ID: biblio-1556977

RESUMO

El presente documento se realizó gracias a la activa participación de diferentes profesionales de la salud, entre ellos, médicos dermatólogos, residentes de dermatología, neonatólogos, licenciadas y enfermeras del Servicio de Neonatología del Centro Hospitalario Pereira Rossell. Se hizo una búsqueda sistemática de la literatura, sin embargo, debido a que la EA es una condición poco frecuente, con un pequeño número de pacientes, la gran mayoría de trabajos publicados son estudios no analíticos o recomendaciones basadas en opinión de expertos (nivel de evidencia 3-4 o D). De esos estudios se han realizado guías y consensos en diferentes países e instituciones. Dicha literatura también ha sido evaluada y analizada por los autores de estas pautas. Este documento busca servir como una guía práctica y no intenta reemplazar el juicio clínico que el profesional debe emplear para cada paciente o situación en particular. Se presenta una variedad de materiales con los que contamos en el medio y alternativas mediante un pautado de estrategia de tratamiento.


Assuntos
Humanos , Recém-Nascido , Pele/lesões , Dermatopatias/terapia , Fragilidade , Administração dos Cuidados ao Paciente
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