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1.
Crit Rev Food Sci Nutr ; : 1-13, 2023 Oct 09.
Artículo en Inglés | MEDLINE | ID: mdl-37811651

RESUMEN

Probiotics are not only a food supplement, but they have shown great potential in their nutritional, health and therapeutic effects. To maximize the beneficial effects of probiotics, it is commonly achieved by adding prebiotics. Prebiotics primarily comprise indigestible carbohydrates, specific peptides, proteins, and lipids, with oligosaccharides being the most extensively studied prebiotics. However, these rapidly fermenting oligosaccharides have many drawbacks and can cause diarrhea and flatulence in the body. Hence, the exploration of new prebiotic is of great interest. Besides oligosaccharides, protein hydrolysates have been demonstrated to enhance the expression of beneficial properties of probiotics. Consequently, this paper outlines the mechanism underlying the action of protein hydrolysates on probiotics, as well as the advantageous impacts of proteins hydrolysates derived from various food sources on probiotics. In addition, this paper also reviews the currently reported biological activities of protein hydrolysates. The aim is a theoretical basis for the development and implementation of novel prebiotics.

2.
Appl Environ Microbiol ; 88(17): e0104622, 2022 09 13.
Artículo en Inglés | MEDLINE | ID: mdl-36000858

RESUMEN

Exploring the potential functions of nonconserved residues on the outer side of α-helices and systematically optimizing them are pivotal for their application in protein engineering. Based on the evolutionary structural conservation analysis of GH5_5 cellulases, a practical molecular improvement strategy was developed. Highly variable sites on the outer side of the α-helices of the GH5_5 cellulase from Aspergillus niger (AnCel5A) were screened, and 14 out of the 34 highly variable sites were confirmed to exert a positive effect on the activity. After the modular combination of the positive mutations, the catalytic efficiency of the mutants was further improved. By using CMC-Na as the substrate, the catalytic efficiency and specific activity of variant AnCel5A_N193A/T300P/D307P were approximately 2.0-fold that of AnCel5A (227 ± 21 versus 451 ± 43 ml/s/mg and 1,726 ± 19 versus 3,472 ± 42 U/mg, respectively). The half-life (t1/2) of variant AnCel5A_N193A/T300P/D307P at 75°C was 2.36 times that of AnCel5A. The role of these sites was successfully validated in other GH5_5 cellulases. Computational analyses revealed that the flexibility of the loop 6-loop 7-loop 8 region was responsible for the increased catalytic performance. This work not only illustrated the important role of rapidly evolving positions on the outer side of the α-helices of GH5_5 cellulases but also revealed new insights into engineering the proteins that nature left as clues for us to find. IMPORTANCE A comprehensive understanding of the residues on the α-helices of the GH5_5 cellulases is important for catalytic efficiency and stability improvement. The main objective of this study was to use the evolutionary conservation and plasticity of the TIM-barrel fold to probe the relationship between nonconserved residues on the outer side of the α-helices and the catalytic efficiency of GH5_5 cellulases by conducting structure-guided protein engineering. By using a four-step nonconserved residue screening strategy, the functional role of nonconserved residues on the outer side of the α-helices was effectively identified, and a variant with superior performance and capability was constructed. Hence, this study proved the effectiveness of this strategy in engineering GH5_5 cellulases and provided a potential competitor for industrial applications. Furthermore, this study sheds new light on engineering TIM-barrel proteins.


Asunto(s)
Celulasa , Celulasas , Aspergillus niger/genética , Aspergillus niger/metabolismo , Catálisis , Celulasa/metabolismo , Celulasas/metabolismo , Mutación
3.
Int J Med Sci ; 18(3): 646-651, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33437199

RESUMEN

Objectives: A significant proportion of discharged COVID-19 patients still have some symptoms. Traditional Chinese medicine (TCM) has played an important role in the treatment of COVID-19, but whether it is helpful for discharged patients is still unknown. The aim of this study was to retrospectively analyze the impacts of TCM treatment on the convalescents of COVID-19. Methods: A total of 372 COVID-19 convalescents from February 21 to May 3 in Shenzhen, China were retrospectively analyzed, 291 of them accepted clinically examined at least once and 191 convalescents accepted TCM. Results: After retrospective analysis of the clinical data of convalescents accepted TCM treatment or not, we found that the white blood cell count, as well as serum interleukin-6 and procalcitonin decreased in TCM group. Serum γ-glutamyl transpeptidase was significantly decreased, while prealbumin and albumin increased in TCM group. Red blood cell, hemoglobin, and platelet count increased in TCM group. The mechanisms of TCM treatment might be the overall regulations, including balanced immune response, improved hematopoiesis and coagulation systems, enhanced functions of liver and heart, increased nutrient intake and lipid metabolism. Conclusions: This study suggested that TCM treatment would be beneficial for discharged COVID-19 patients. However, long-term medical observation and further study with randomized trial should be done to confirm this result. Besides, the potential molecular mechanisms of TCM treatment should be further revealed.


Asunto(s)
COVID-19/rehabilitación , Convalecencia , Medicamentos Herbarios Chinos/administración & dosificación , COVID-19/sangre , COVID-19/diagnóstico , Hospitales de Aislamiento/estadística & datos numéricos , Humanos , Estudios Retrospectivos , SARS-CoV-2/aislamiento & purificación , Resultado del Tratamiento
4.
Int J Med Sci ; 18(1): 176-186, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33390786

RESUMEN

Objective: The aim of this study was to observe the liver function recovery of COVID-19 patients after discharge. Patients and Methods: A total of 253 discharged COVID-19 patients in Shenzhen city, China were selected. The clinical characteristics of these patients were assessed. A 2-month follow-up and laboratory hematology test were performed to examine the status of patients' liver function. Results: Patients combined with liver diseases, especially fatty liver, are more likely to progress to severe condition (P<0.05). Patients in severe condition and those with liver diseases have higher rates of liver injuries during hospitalization, characterized by a significant increase in alanine aminotransferase (ALT) and aspartate aminotransferase (AST, P<0.01). The ALT, AST/ALT, gamma-glutamyl transferase (GGT), alkaline phosphatase (ALP), total protein (TP), albumin (ALB), and A/G levels showed significant differences in comparison with the control group (P<0.05, and P<0.001); and the outlier ratio of A/G, ALT, GGT and ALP of patients remained abnormal higher within 14 days after discharge (P<0.001). Liver injuries of COVID-19 patients may be related to the epidemiological characteristics, clinical indexes, basic diseases, symptoms, drug treatment during hospitalization and the complications. Indicators of liver function were correlated with cardiac function, renal function, thyroid function, lipid metabolism, glucose metabolism, immune index, leukocyte, erythrocyte, hemoglobin and platelet related indexes. The outlier ratio of TP, ALB and GLB remained extremely low throughout the follow-up period; the outlier ratio of ALT, AST and GGT decreased below 10% from a high level at 40 days after discharged. However, the outlier ratio of A/G, AST/ALT and ALP remained high during the follow-up period. Conclusions: Abnormal liver function might indicate worse recovery of COVID-19 patients. Changes in liver function should be emphasized during long-term follow-up of COVID-19 patients after hospital discharge; the necessity of employing appropriate interventions for liver function repair should be emphasized.


Asunto(s)
COVID-19/complicaciones , Insuficiencia Hepática/virología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , COVID-19/fisiopatología , Niño , Preescolar , Estudios Transversales , Femenino , Estudios de Seguimiento , Humanos , Lactante , Pruebas de Función Hepática , Masculino , Persona de Mediana Edad , Recuperación de la Función , Adulto Joven
5.
Int J Med Sci ; 18(2): 347-355, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33390803

RESUMEN

Objectives: Research on recovering COVID-19 patients could be helpful for containing the pandemic and developing vaccines, but we still do not know much about the clinical features, recovery process, and antibody reactions during the recovery period. Methods: We retrospectively analysed the epidemiological information, discharge summaries, and laboratory results of 324 patients. Results: In all, 15 (8.62%) patients experienced chest distress/breath shortness, where 8 of the 15 were severely ill. This means severely ill patients need an extended amount of time to recover after discharge; next, 20 (11.49%) patients experienced anxiety and 21 (12.07%) had headache/insomnia and a small fraction of them complained of anosmia/ageusia, indicating that these patients need treatment for mental and psychological health issues. Regarding the re-positive patients, their CT and laboratory test results showed no obvious evidence of illness progress or infectivity but a high anti-SARS-CoV-2 antibody expression. Conclusion: Recovered COVID-19 patients need psychological and physiological care and treatment, re-positivity can occur in any person, but juveniles, females, and patients with mild/moderate existing symptoms have higher rates of re-positivity, While there is no evidence that turning re-positive has an impact on their infectivity, but it still alerted us that we need differentiate them in the following managements.


Asunto(s)
COVID-19/epidemiología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Ageusia , Anosmia , COVID-19/psicología , COVID-19/rehabilitación , COVID-19/virología , Niño , Preescolar , China/epidemiología , Femenino , Estudios de Seguimiento , Humanos , Lactante , Masculino , Persona de Mediana Edad , Recurrencia , Estudios Retrospectivos , SARS-CoV-2/aislamiento & purificación , Adulto Joven
6.
Cell Physiol Biochem ; 41(6): 2307-2318, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28456802

RESUMEN

BACKGROUND/AIMS: This study aimed to investigate the anti-inflammatory activity of Berbamine (BER), a bisbenzylisoquinoline alkaloid extracted from Berberis amurensis (Xiao Bo An), and the underlying mechanisms. METHODS: Macrophages and neutrophils were treated with BER in vitro and stimulated with LPS and fMLP. The effects of BER on the expression of pro-inflammatory mediators in macrophages were evaluated with quantitative RT-PCR and ELISA. The effects of BER on the activation and superoxide release of neutrophils were determined with flow cytometry and WST-1 reduction test. The inhibitory effects of BER on the activation of signaling pathways related to inflammatory response in macrophages were evaluated by western blot analysis. In addition, a mouse peritonitis model was made by peritoneal injection of thioglycollate medium and anti-inflammatory effects of BER were investigated in vivo by quantitative analysis of pro-inflammatory factor production and leukocyte exudation. RESULTS: BER significantly inhibited inflammatory factor expression by LPS-stimulated macrophages and suppressed activation and superoxide release of fMLP-stimulated neutrophils. In the mouse peritonitis model, BER significantly inhibited the activation of macrophages and exudation of neutrophils. According to analysis, BER significantly suppressed phosphorylation of NF-κB and MAPK (JNK and ERK1/2) signaling pathways in LPS-stimulated macrophages. CONCLUSIONS: Collectively, data from this study suggest that BER has anti-inflammatory potential, which is effected via inhibition of NF-κB and MAPK signaling pathways, and thus holds promise for treatment of inflammatory disease.


Asunto(s)
Antiinflamatorios/farmacología , Bencilisoquinolinas/farmacología , Sistema de Señalización de MAP Quinasas/efectos de los fármacos , FN-kappa B/metabolismo , Animales , Antiinflamatorios/uso terapéutico , Apoptosis/efectos de los fármacos , Bencilisoquinolinas/uso terapéutico , Berberis/química , Berberis/metabolismo , Células de la Médula Ósea/citología , Supervivencia Celular/efectos de los fármacos , Ciclooxigenasa 2/metabolismo , Citocinas/análisis , Dinoprostona/metabolismo , Lipopolisacáridos/toxicidad , Masculino , Metaloproteinasa 2 de la Matriz/metabolismo , Metaloproteinasa 9 de la Matriz/metabolismo , Ratones , Ratones Endogámicos BALB C , Neutrófilos/citología , Neutrófilos/efectos de los fármacos , Neutrófilos/metabolismo , Peritonitis/tratamiento farmacológico , Células RAW 264.7
7.
Cell Physiol Biochem ; 44(1): 200-214, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-29131032

RESUMEN

BACKGROUND/AIMS: The aim of this study was to determine the anti-psoriasis effects of α-(8-quinolinoxy) zinc phthalocyanine (ZnPc-F7)-mediated photodynamic therapy (PDT) and to reveal its mechanisms. METHODS: HaCaT cells were used to observe the influence of ZnPc-F7-PDT on cell proliferation in vitro. The in vivo anti-psoriasis effects of ZnPc-F7-PDT were evaluated using a mouse vagina model, a propranolol-induced cavy psoriasis model and an imiquimod (IMQ)-induced nude mouse psoriasis model. Flow cytometry was carried out to determine T lymphocyte levels. Western blotting was performed to determine protein expression, and a reverse transcription-polymerase chain reaction test was performed to determine mRNA expression. RESULTS: The results showed that ZnPc-F7-PDT significantly inhibited the proliferation of HaCaT cells in vitro; when the light doses were fixed, changing the irradiation time or output power had little influence on the inhibition rate. ZnPc-F7-PDT significantly inhibited the hyperproliferation of mouse vaginal epithelium induced by diethylstilbestrol and improved propranolol- and IMQ-induced psoriasis-like symptoms. ZnPc-F7-PDT inhibited IMQ-induced splenomegaly and T lymphocyte abnormalities. ZnPc-F7-PDT did not appear to change T lymphocytes in the mouse vagina model. ZnPc-F7-PDT down-regulated the expression of proliferating cell nuclear antigen (PCNA), B-cell lymphoma-2 (Bcl-2), interleukin (IL)-17A mRNA and IL-17F mRNA, and up-regulated the expression of Bax. CONCLUSION: In conclusion, ZnPc-F7-PDT exhibited therapeutic effects in psoriasis both in vitro and in vivo and is a potential approach in the treatment of psoriasis. Potential mechanisms of these effects included the inhibition of hyperproliferation; regulation of PCNA, Bcl-2, Bax, IL-17A mRNA and IL-17F mRNA expression; and immune regulation.


Asunto(s)
Proliferación Celular/efectos de los fármacos , Indoles/química , Compuestos Organometálicos/química , Fármacos Fotosensibilizantes/uso terapéutico , Psoriasis/tratamiento farmacológico , Aminoquinolinas/toxicidad , Animales , Línea Celular , Proliferación Celular/efectos de la radiación , Modelos Animales de Enfermedad , Epidermis/patología , Células Epiteliales/citología , Células Epiteliales/efectos de los fármacos , Células Epiteliales/metabolismo , Femenino , Cobayas , Humanos , Imiquimod , Indoles/farmacología , Indoles/uso terapéutico , Interleucina-17/genética , Interleucina-17/metabolismo , Isoindoles , Rayos Láser , Masculino , Ratones , Ratones Endogámicos ICR , Ratones Desnudos , Compuestos Organometálicos/farmacología , Compuestos Organometálicos/uso terapéutico , Fotoquimioterapia , Fármacos Fotosensibilizantes/química , Fármacos Fotosensibilizantes/farmacología , Propranolol/toxicidad , Psoriasis/inducido químicamente , Psoriasis/patología , Compuestos de Zinc
8.
Zhong Yao Cai ; 36(1): 132-6, 2013 Jan.
Artículo en Zh | MEDLINE | ID: mdl-23750421

RESUMEN

OBJECTIVE: To Set up a method for determining the contents of the five flavonoids simultaneously in the HuangKui capsule and analyze their specific chromatograms. METHODS: HPLC method was used. The analytical column was Thermo scientific Hypersil GOLD (250 mm x 4.6 mm, 5 microm). The mobile phase was composed of acetonitrile (A) and 0.2% orthophosphoric acid (B) with gradient elution. The flow rate was 0.8 mL/min and detection wavelength was 360 nm. The column temperature was maintained at 30 degrees C. RESULTS: Contents of the five flavonoids (Rutin, Hyperoside, Isoquercitrin, Myricetin, Quercitrin) had good resolution with the correlation coefficients exceed 0.9999 and the average percent recovery lied in 98.46% to 100.33%. The chromatograms of the HuangKui capsule shared 15 common peaks in which 5 of them were recognized by the reference standard. Chromatograms of 10 lots of HuangKui capsule were analyzed with the similarities over 0.95. CONCLUSION: The proposed method of contents determination and chromatogram analysis has strong characteristic and specificity. This method is fast, easy and reliable, and can be applied for quality control of the preparation.


Asunto(s)
Abelmoschus/química , Cromatografía Líquida de Alta Presión/métodos , Medicamentos Herbarios Chinos/química , Flavonoides/análisis , Cápsulas , Medicamentos Herbarios Chinos/normas , Control de Calidad , Quercetina/análogos & derivados , Quercetina/análisis , Reproducibilidad de los Resultados , Rutina/análisis
9.
Zhong Yao Cai ; 36(5): 721-5, 2013 May.
Artículo en Zh | MEDLINE | ID: mdl-24218960

RESUMEN

OBJECTIVE: To establish HPLC fingerprint of Ophiopogonis Radix of Sichuan and simultaneously determine two homoisoflavonoids (methylophiopogonanones A and B). METHODS: Full-quantified HPLC fingerprint was used to establish the HPLC fingerprint and determine the active ingredients of the daodi medicinal material Ophiopogonis Radix of Sichuan in Shengmai injection. Chromatographic condition was as follows: The analytical column was Waters symmetry shield RP 18 (4.6 mm x 250 mm, 5 microm) with a pre-column of symmetry shield RP 18. The mobile phase was acetonitrile-water (containing 0.1% phosphoric acid) with gradient elution. The flow rate was 1.0 mL/min, the detection wavelength was set at 280 nm and the column temperature was maintained at 30 degrees C. RESULTS: The HPLC fingerprint of Ophiopogonis Radix of Sichuan was established with good separation and repeatability. 24 common peaks were defined in the HPLC fingerprint. The similarity among batches was more than 0.98. Compared with standard reference substances, No. 14 peak was methylophiopogonanone A and No. 15 peak was methylophiopogonanone B. Similarity determine system was applied to evaluate them. CONCLUSION: This analytical method is highly sensitive with strong specificity, which can be used efficiently in the quality control of Ophiopogonis Radix of Sichuan in Shengmai injection.


Asunto(s)
Benzodioxoles/análisis , Medicamentos Herbarios Chinos/análisis , Isoflavonas/análisis , Ophiopogon/química , Cromatografía Líquida de Alta Presión , Medicamentos Herbarios Chinos/normas , Raíces de Plantas/química , Control de Calidad , Reproducibilidad de los Resultados
10.
Discov Oncol ; 14(1): 23, 2023 Feb 22.
Artículo en Inglés | MEDLINE | ID: mdl-36811728

RESUMEN

The increasing incidence of thyroid cancer (TC) cannot be fully explained by overdiagnosis. Metabolic syndrome (Met S) is highly prevalent due to the modern lifestyle, which can lead to the development of tumors. This review expounds on the relationship between Met S and TC risk, prognosis and its possible biological mechanism. Met S and its components were associated with an increased risk and aggressiveness of TC, and there were gender differences in most studies. Abnormal metabolism places the body in a state of chronic inflammation for a long time, and thyroid-stimulating hormones may initiate tumorigenesis. Insulin resistance has a central role assisted by adipokines, angiotensin II, and estrogen. Together, these factors contribute to the progression of TC. Therefore, direct predictors of metabolic disorders (e.g., central obesity, insulin resistance and apolipoprotein levels) are expected to become new markers for diagnosis and prognosis. cAMP, insulin-like growth factor axis, angiotensin II, and AMPK-related signaling pathways could provide new targets for TC treatment.

11.
ACS Appl Mater Interfaces ; 15(14): 17532-17542, 2023 Apr 12.
Artículo en Inglés | MEDLINE | ID: mdl-36975753

RESUMEN

Androgenetic alopecia (AGA) is the most common type of progressive hair loss in both men and women that severely reduces life quality and affects patients' self-esteem. Due to the shortcomings of traditional therapeutic formulations (e.g., topical minoxidil and oral finasteride), such as low bioavailability, frequent dosing, and significant side effects, there is an urgent need to develop a safe and effective strategy for AGA treatment. Here, we report a water-soluble microneedle (MN) patch integrated with biodegradable minoxidil (MXD)-loaded microspheres for long-acting AGA treatment with reduced administration frequency and improved patient compliance. When the patch pierces the skin, the MNs rapidly dissolve and deliver MXD-encapsulated polylactic-co-glycolic acid (PLGA) microspheres into the skin, which, subsequently act as drug reservoirs for the sustained release of the therapeutics for over 2 weeks. Additionally, the application of the MN patch provided a mechanical stimulation on mouse skin, which was also helpful for hair regrowth. Compared with the topical MXD solutions that have been commercialized on the market and require daily application, the long-acting MN patch contains a much lower drug amount and shows a similar or superior hair regeneration effect in AGA mice while only requiring monthly or weekly administration. These encouraging results suggest a simple, safe, and effective strategy for long-acting hair regeneration in clinics.


Asunto(s)
Alopecia , Minoxidil , Femenino , Ratones , Animales , Minoxidil/farmacología , Minoxidil/uso terapéutico , Microesferas , Administración Tópica , Alopecia/tratamiento farmacológico , Alopecia/inducido químicamente , Cabello , Resultado del Tratamiento
12.
Metab Syndr Relat Disord ; 20(8): 466-472, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-36083278

RESUMEN

Background: Hypertension (HTN) is known to increase the risk of thyroid cancer. However, few studies have explored the association between HTN and the prognostic factors of papillary thyroid cancer (PTC). Methods: We retrospectively evaluated 2838 PTC patients treated with surgery at our center between January 2017 and September 2020. The association between both HTN and antihypertensive drug use and the clinicopathological features of the PTC patients was analyzed. The odds ratios (ORs) were estimated using both univariate and multivariate logistic regression models, which were adjusted for the patients' age, sex, and thyroid-stimulating hormone level. Results: A total of 2838 patients were enrolled in this study, including 409 patients with HTN. In the multivariate analysis, HTN was associated with larger tumor size [OR = 1.51, 95% confidence interval (CI): 1.10-2.07], lymph node metastasis (OR = 1.43, 95% CI: 1.02-1.99), and higher tumor stages (OR = 1.79, 95% CI: 1.12-2.86). There was no statistical difference between females >40 years of age and any pathological features, while a positive association was observed between older males and larger tumors (OR = 1.87, 95% CI: 1.01-3.45), and lymph node metastasis (OR = 2.01, 95% CI: 1.08-3.73). No statistical difference was found in the effects of taking alone calcium channel blockers, angiotensin-converting enzyme inhibitors/angiotensin II-receptor blockers, and their combination on the pathological features of PTC. Conclusion: PTC patients with HTN, particularly males of age >40, tend to have invasive features. Common antihypertension therapy appears to exert no effect on the pathological characteristics of these patients.


Asunto(s)
Carcinoma Papilar , Carcinoma , Hipertensión , Neoplasias de la Tiroides , Masculino , Femenino , Humanos , Cáncer Papilar Tiroideo/complicaciones , Metástasis Linfática , Carcinoma Papilar/patología , Estudios Retrospectivos , Antihipertensivos/uso terapéutico , Bloqueadores de los Canales de Calcio , Angiotensina II , Carcinoma/patología , Carcinoma/cirugía , Neoplasias de la Tiroides/complicaciones , Neoplasias de la Tiroides/epidemiología , Neoplasias de la Tiroides/patología , Hipertensión/complicaciones , Hipertensión/epidemiología , Inhibidores de la Enzima Convertidora de Angiotensina , Tirotropina , Factores de Riesgo
13.
Int J Immunopathol Pharmacol ; 36: 3946320221139262, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36377597

RESUMEN

Background: The gene mutation of isocitrate dehydrogenase-1 (IDH1) is commonly found in LGG and some GBM patients and usually carries tumor protein 53 (TP53) mutations. However, the underlying mechanisms on both mutations of glioma patients in IDH1 and TP53 are still unclear. Aim: To find the potential target markers in GBM and LGG patients with IDH1 and TP53 mutation.Method: A total of 1122 glioma patients from The Cancer Genome Atlas were enrolled and divided as wild-type (without IDH1 and TP53 mutations) or both mutant (both IDH1 and TP53 mutations). The data of clinicopathological characteristics, mRNA, mutations, and copy number alteration were analyzed. Results: IDH1 and TP53 mutations, not gene expression, affect the survival probability of GBM and LGG patients, which might be related to neuron function, immune function, tumor invasion, and metastasis. The effects of the selected gene (EMILIN3, SAA1, VSTM2A, HAMP, IFT80, and CHIC2) on glioma patients could be regulated by IDH1 and TP53 mutations and had a higher survival possibility in these patients. Conclusions: The selected genes in GBM and LGG patients with IDH1 and TP53 mutations could be a potential prognosis marker in the future.


Asunto(s)
Neoplasias Encefálicas , Glioma , Humanos , Neoplasias Encefálicas/genética , Genómica , Glioma/genética , Isocitrato Deshidrogenasa/genética , Mutación/genética , Pronóstico
14.
EBioMedicine ; 63: 103193, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-33421944

RESUMEN

The BMI1 protein, a member of the PRC1 family, is a well recognised transcriptional suppressor and has the capability of maintaining the self-renewal and proliferation of tissue-specific stem cells. Numerous studies have established that BMI1 is highly expressed in a variety of malignant cancers and serves as a key regulator in the tumorigenesis process. However, our understanding of BMI1 in terminally differentiated organs, such as the heart, is relatively nascent. Importantly, emerging data support that, beyond the tumor, BMI1 is also expressed in the heart tissue and indeed exerts profound effects in various cardiac pathological conditions. This review gives a summary of the novel functions of BMI1 in the heart, including BMI1-positive cardiac stem cells and BMI1-mediated signaling pathways, which are involved in the response to various cardiac pathological stimuli. Besides, we summarize the recent progress of BMI1 in some novel and rapidly developing cardiovascular therapies. Furtherly, we highlight the properties of BMI1, a therapeutic target proved effective in cancer treatment, as a promising target to alleviate cardiovascular diseases.


Asunto(s)
Miocardio/metabolismo , Complejo Represivo Polycomb 1/genética , Complejo Represivo Polycomb 1/metabolismo , Animales , Biomarcadores , Enfermedades Cardiovasculares/tratamiento farmacológico , Enfermedades Cardiovasculares/etiología , Enfermedades Cardiovasculares/metabolismo , Transformación Celular Neoplásica/genética , Transformación Celular Neoplásica/metabolismo , Susceptibilidad a Enfermedades , Descubrimiento de Drogas , Regulación de la Expresión Génica , Humanos , Terapia Molecular Dirigida , Neoplasias/tratamiento farmacológico , Neoplasias/etiología , Neoplasias/metabolismo , Neoplasias/patología , Especificidad de Órganos , Complejo Represivo Polycomb 1/antagonistas & inhibidores , Transducción de Señal , Células Madre/metabolismo
15.
Oncol Lett ; 21(5): 359, 2021 May.
Artículo en Inglés | MEDLINE | ID: mdl-33747216

RESUMEN

Berberine (BBR) is a plant secondary metabolite that has been used in photodynamic therapy (PDT) in the last few decades. The present review aimed to discuss the research progress of BBR-mediated photodynamic actions. The following key words were searched in several databases: 'Berberine' combined with 'photodynamic therapy', 'sonodynamic therapy (SDT)', 'ultraviolet', 'reactive oxygen' and 'singlet oxygen'. The results demonstrated that both type I and type II reactions participated in the photodynamic progression of BBR derivatives. In addition, the photochemical characteristics of BBR derivatives were affected by the polarity, pH and O2 content of solvents. DNA binding increases the lifespan of the photoexcited BBR state and generation of singlet oxygen (1O2). The chemical properties of substituents in different positions of the BBR skeleton are pivotal for its photochemical properties, particularly the methylenedioxy group at the C-2 and C-3 positions. BBR is a promising agent for mediating both PDT- and SDT-treated diseases, particularly in tumors. However, further studies are required to validate their biological effects. In addition, the molecular mechanisms underlying the antitumor effects of BBR-PDT remain unclear and warrant further investigation. The structural modification and targeted delivery of BBR have made it possible to broaden its applications; however, experimental verification is required. Overall, BBR acts as a sensitizer for PDT and has promising development prospects.

16.
Front Endocrinol (Lausanne) ; 12: 649863, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34177799

RESUMEN

Immune checkpoint inhibitors (ICIs) are a group of drugs employed in the treatment of various types of malignant tumors and improve the therapeutic effect. ICIs blocks negative co-stimulatory molecules, such as programmed cell death gene-1 (PD-1) and its ligand (PD-L1) and cytotoxic T-lymphocyte-associated antigen-4 (CTLA-4), reactivating the recognition and killing effect of the immune system on tumors. However, the reactivation of the immune system can also lead to the death of normal organs, tissues, and cells, eventually leading to immune-related adverse events (IRAEs). IRAEs involve various organs and tissues and also cause thyroid dysfunction. This article reviews the epidemiology, clinical manifestations, possible pathogenesis, and management of ICIs-related thyroid dysfunction.


Asunto(s)
Inhibidores de Puntos de Control Inmunológico/metabolismo , Enfermedades de la Tiroides/diagnóstico , Enfermedades de la Tiroides/inmunología , Enfermedades de la Tiroides/terapia , Anciano , Anciano de 80 o más Años , Antígeno B7-H1/metabolismo , Antígeno CTLA-4/metabolismo , Progresión de la Enfermedad , Femenino , Predisposición Genética a la Enfermedad , Antígenos HLA/biosíntesis , Homeostasis , Humanos , Inhibidores de Puntos de Control Inmunológico/efectos adversos , Sistema Inmunológico , Inmunoterapia/métodos , Ligandos , Masculino , Persona de Mediana Edad , Receptor de Muerte Celular Programada 1/metabolismo , Linfocitos T/citología , Enfermedades de la Tiroides/epidemiología , Glándula Tiroides/fisiopatología
17.
Front Cardiovasc Med ; 8: 822969, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-35118147

RESUMEN

Cardiac hypertrophy, a stereotypic cardiac response to increased workload, ultimately progresses to severe contractile dysfunction and uncompensated heart failure without appropriate intervention. Sustained cardiac overload inevitably results in high energy consumption, thus breaking the balance between mitochondrial energy supply and cardiac energy demand. In recent years, accumulating evidence has indicated that mitochondrial dysfunction is implicated in pathological cardiac hypertrophy. The significant alterations in mitochondrial energetics and mitochondrial proteome composition, as well as the altered expression of transcripts that have an impact on mitochondrial structure and function, may contribute to the initiation and progression of cardiac hypertrophy. This article presents a summary review of the morphological and functional changes of mitochondria during the hypertrophic response, followed by an overview of the latest research progress on the significant modulatory roles of mitochondria in cardiac hypertrophy. Our article is also to summarize the strategies of mitochondria-targeting as therapeutic targets to treat cardiac hypertrophy.

18.
J Mol Med (Berl) ; 99(1): 33-46, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-33130927

RESUMEN

Macrophages are integral components of the mammalian heart that show extensive expansion in response to various internal or external stimuli. After the onset of sustained pressure overload (PO), the accumulation of cardiac macrophages through local macrophage proliferation and monocyte migration has profound effects on the transition to cardiac hypertrophy and remodeling. In this review, we describe the heterogeneity and diversity of cardiac macrophages and summarize the current understanding of the important roles of macrophages in PO-induced cardiac remodeling. In addition, the possible mechanisms involved in macrophage modulation are also described. Finally, considering the significant effects of cardiac macrophages, we highlight their emerging role as therapeutic targets for alleviating pathological cardiac remodeling after PO.


Asunto(s)
Macrófagos/inmunología , Miocardio/inmunología , Remodelación Ventricular/inmunología , Animales , Humanos , Presión Ventricular
19.
Yao Xue Xue Bao ; 45(12): 1576-81, 2010 Dec.
Artículo en Zh | MEDLINE | ID: mdl-21351500

RESUMEN

This study aimed to investigate the effects of concentration, intestinal section and borneol on the intestinal absorption of salvianolic acids. The experiment not only studied the intestinal absorption properties of three concentrations of rosmarinic acid, salvianolic acid B and salvianolic acid A at duodenum, jejunum and ileum, but also of salvianolic acids compatible with borneol at different concentrations using single-pass intestinal perfusion model in rat with phenol red as the marker. The results showed that salvianolic acids was stable under weak-acid condition and affected by metabolism enzyme; The Peff and Ka significantly different among three concentrations of rosmarinic acid and salvianolic acid B, whose intestinal absorption were saturated in high concentration, suggesting that the transport mechanisms of rosmarinic acid and salvianolic acid B were similar to active transport or facilitated diffusion; However, there was inconspicuousness in the Peff and Ka of salvianolic acid A at different concentrations, whose absorption was not saturated in high concentration, indicating that the transport mechanisms of salvianolic acid A was passive diffusion; The Peff and Ka in the ileum obviously higher than those in the duodenum and jejunum, namely the ileum was the best absorption section; When concentration of borneol increased, the enhancing effect of intestinal absorption of salvianolic acids increased, but significantly decreased when borneol increased to some degree. The enhancing effect of medium borneol concentration was the optimum. This implied that borneol can enhance the intestinal absorption of salvianolic acids, and the capacity of enhancing effect was influenced by the concentration of borneol.


Asunto(s)
Benzofuranos/farmacocinética , Ácidos Cafeicos/farmacocinética , Canfanos , Cinamatos/farmacocinética , Depsidos/farmacocinética , Absorción Intestinal , Lactatos/farmacocinética , Animales , Benzofuranos/aislamiento & purificación , Ácidos Cafeicos/aislamiento & purificación , Canfanos/administración & dosificación , Canfanos/farmacocinética , Canfanos/farmacología , Cinamatos/aislamiento & purificación , Depsidos/aislamiento & purificación , Relación Dosis-Respuesta a Droga , Duodeno/metabolismo , Íleon/metabolismo , Yeyuno/metabolismo , Lactatos/aislamiento & purificación , Masculino , Perfusión/métodos , Plantas Medicinales/química , Ratas , Ratas Sprague-Dawley , Salvia miltiorrhiza/química , Ácido Rosmarínico
20.
Front Oncol ; 10: 604051, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33634025

RESUMEN

Thyroid cancers (TC) have increasingly been detected following advances in diagnostic methods. Risk stratification guided by refined information becomes a crucial step toward the goal of personalized medicine. The diagnosis of TC mainly relies on imaging analysis, but visual examination may not reveal much information and not enable comprehensive analysis. Artificial intelligence (AI) is a technology used to extract and quantify key image information by simulating complex human functions. This latent, precise information contributes to stratify TC on the distinct risk and drives tailored management to transit from the surface (population-based) to a point (individual-based). In this review, we started with several challenges regarding personalized care in TC, for example, inconsistent rating ability of ultrasound physicians, uncertainty in cytopathological diagnosis, difficulty in discriminating follicular neoplasms, and inaccurate prognostication. We then analyzed and summarized the advances of AI to extract and analyze morphological, textural, and molecular features to reveal the ground truth of TC. Consequently, their combination with AI technology will make individual medical strategies possible.

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