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1.
Zool Res ; 45(2): 415-428, 2024 Mar 18.
Artículo en Inglés | MEDLINE | ID: mdl-38485509

RESUMEN

In eukaryotic organisms, the most common internal modification of messenger RNA (mRNA) is N6-methyladenosine (m6A). This modification can be dynamically and reversibly controlled by specific enzymes known as m6A writers and erasers. The fat-mass and obesity-associated protein (FTO) catalyzes RNA demethylation and plays a critical role in various physiological and pathological processes. Our research identified dynamic alterations in both m6A and FTO during the assembly of primordial follicles, with an inverse relationship observed for m6A levels and nuclear-localized FTO expression. Application of Fto small interfering RNA (siRNA) altered the expression of genes related to cell proliferation, hormone regulation, and cell chemotaxis, and affected RNA alternative splicing. Overexpression of the full-length Fto gene led to changes in m6A levels, alternative splicing of Cdk5, cell proliferation, cell cycle progression, and proportion of primordial follicles. Conversely, overexpression of Fto lacking a nuclear localization signal (NLS) did not significantly alter m6A levels or primordial follicle assembly. These findings suggest that FTO, localized in the nucleus but not in the cytoplasm, regulates RNA m6A demethylation and plays a role in cell proliferation, cell cycle progression, and primordial follicle assembly. These results highlight the potential of m6A and its eraser FTO as possible biomarkers and therapeutic targets.


Asunto(s)
Adenina/análogos & derivados , Empalme Alternativo , ARN , Animales , ARN/metabolismo , ARN Mensajero/genética , Biomarcadores
2.
Pract Lab Med ; 39: e00385, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38495349

RESUMEN

Objective: The accurate detection of phospholipase A2 receptor (PLA2R) autoantibody is crucial in the diagnosis and monitoring of primary membranous nephropathy (pMN). While enzyme-linked immunosorbent assay (ELISA) is the commonly used detection method, its complexity and time-consuming nature pose challenges, especially for small sample sizes. Chemiluminescence immunoassay (CLIA) has emerged as a rapid alternative for clinical immunoassays. This study aims to compare the sensitivity, specificity, and precision of CLIA and ELISA in detecting PLA2R autoantibody. Method: A total of 145 patients with biopsy-confirmed primary membranous nephropathy and 85 patients with non-membranous nephropathy were enrolled in this comparative study. CLIA and ELISA were employed to test all samples for the presence of PLA2R autoantibodies. Statistical analysis of sensitivity, specificity, accuracy, positive predictive value (PPV), and negative predictive value (NPV) was performed using SPSS 26.0. The diagnostic value of ELISA and CLIA for pMN was analyzed using the ROC curve, and Correlation analysis was performed using Spearman. Results: Serum levels of anti-PLA2R antibody in pMN group were significantly higher than those in nMN group(P < 0.05). The accuracy of CLIA for detecting anti-PLA2R antibody was 76.96%, while ELISA showed an accuracy of 74.78%. The sensitivity for CLIA was 64.83%, compared to 60% for ELISA. However, no statistically significant difference was observed between the two methods (P > 0.05). The overall qualitative agreement of anti-PLA2R detection was 93.35% (95% confidence interval[CI] 89.47-96.3). ROC curve analysis showed that AUC of anti-PLA2R antibody detected by ELISA and CLIA were 0.8737 (95% confidence interval [CI] 0.8270-0.9204), 0.8914 (95% confidence interval [CI]0.8495-0.9332), respectively. The Spearman correlation analysis revealed a significant correlation between them(P < 0.05). Notably, CLIA demonstrated a significant time-saving advantage, particularly when the sample size was less than 200, and especially when it was less than 20. Conclusion: CLIA and ELISA showed similar accuracy and consistency in detecting anti-PLA2R antibody for primary membranous nephropathy. However, CLIA exhibited a significant advantage in terms of automation and time-saving compared to ELISA, particularly for smaller sample sizes. This finding suggests that CLIA has the potential to become a preferred and widely adopted test in the future.

3.
Lipids Health Dis ; 23(1): 66, 2024 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-38429790

RESUMEN

BACKGROUND AND AIMS: Cardiovascular disease (CVD) is associated with inflammation and abnormal lipid metabolism. However, a single inflammatory index or a single lipid index cannot accurately predict the prognosis of CVD independently because it is prone to be affected by various confounding factors. METHODS: This population-based cohort study included 6,554 participants from the China Health and Retirement Longitudinal Study (CHARLS) to investigate correlations. In the present study, the occurrence of CVD events such as stroke and heart disease was evaluated by considering self-reported diagnoses at the beginning of the study and during wave 4, and a restricted cubic spline model was used to investigate potential nonlinear relationships in addition to multivariate logistic regression models. Stratified analyses were performed to examine how sociodemographic characteristics may influence the results. RESULTS: Seven years of follow-up (2011-2018) revealed that 786 people (11.99%) developed CVD. According to the adjusted model, the high-sensitivity C-reactive protein (hs-CRP)-to-high-density lipoprotein cholesterol (HDL-C) ratio is a contributing factor to CVD risk (OR 1.31, 95% CI 1.05-1.64). In addition, a nonlinear relationship was observed between the hs-CRP/HDL-C ratio and the occurrence of new CVD, stroke, or cardiac issues (Poverall <0.05, Pnonlinear <0.05). Moreover, noteworthy associations between the hs-CRP/HDL-C ratio and age were detected in the stratified analysis (P = 0.048), indicating that younger participants had more negative effects of a high hs-CRP/HDL-C ratio. CONCLUSIONS: According to the present cohort study, a high hs-CRP/HDL-C ratio is a significant risk factor for CVD, new stroke, and heart problems. Early intervention in patients with increased hs-CRP/HDL-C ratios may further reduce the incidence of CVD, in addition to focusing on independent lipid markers or independent inflammatory markers.


Asunto(s)
Enfermedades Cardiovasculares , Accidente Cerebrovascular , Anciano , Persona de Mediana Edad , Humanos , Proteína C-Reactiva/metabolismo , Enfermedades Cardiovasculares/diagnóstico , Enfermedades Cardiovasculares/epidemiología , Estudios de Cohortes , Estudios Longitudinales , Inflamación
4.
ACS Appl Mater Interfaces ; 16(1): 476-484, 2024 Jan 10.
Artículo en Inglés | MEDLINE | ID: mdl-38155099

RESUMEN

Antisolvent engineering is routinely used to modulate the crystallization of perovskite films as they can offer an additional driving force for nucleation. Actually, the intervention of antisolvent into nucleation is thought to involve some relatively fast and complex processes, which, however, are not fully understood so far. Here, the diffusion of the organic amine cation FA+ (one dominated precursor) and its distribution in a spin-coating process in different antisolvents is simulated by the computational fluid dynamics (CFD) model. It is suggested that a moderate diffusion rate (like that in the case of toluene as an antisolvent) not only enables to form a very uniform distribution of FA+ ions on the substrate, beneficial to the uniform nucleation of the intermediate phase, but also can balance the nucleation and growth rates of the intermediate phase, thereby suppressing undesired heterogeneous nucleation and growth. Results show that the perovskite film fabricated using toluene as an antisolvent has a high quality, based on which higher power conversion efficiencies of up to 24.32% are achieved for perovskite solar cells.

5.
Oncol Res Treat ; 46(12): 503-510, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37963439

RESUMEN

INTRODUCTION: Chronic postsurgical pain (CPSP) is a common complication after surgical procedures. Radical resection of esophageal cancer is a complex procedure, one of the most extensive and traumatic surgical procedures in oncological surgery, and the incidence of postoperative chronic pain is high, seriously affecting patients' postoperative recovery. Therefore, this study aimed to investigate the incidence of CPSP in patients with esophageal cancer and to analyze the risk factors associated with its occurrence in order to provide certain prevention and treatment ideas for clinical prevention and reduction of CPSP. METHODS: Patients with radical esophageal cancer resection were selected as the study subjects, and the clinical data regarding to patients' preoperative comorbidities, ASA grading, surgical method, use of selective COX-2 inhibitors, postoperative analgesic pump use, and patients' postoperative tumor recurrence time were collected. The differences in clinical data between the CPSP group and no-CPSP group were compared to analyze the risk factors for the occurrence of CPSP. RESULTS: A total of 262 patients were included; 57 (21.76%) developed CPSP, and there were statistical differences between the two groups in terms of selective COX-2 inhibitor and postoperative analgesic pump use rates and surgical modality (p < 0.05), and logistic regression analysis showed that age and length of surgery increased the risk of CPSP, perioperative selective COX-2 inhibitor use decreased the risk of CPSP occurrence (p < 0.05), the extent of tumor infiltration and regional lymph node metastasis were risk factors for shortening tumor-free survival (TFS), and age and use of selective COX-2 inhibitor were influential factors for prolonging TFS (p < 0.05). CONCLUSION: Patients with esophageal cancer have a high incidence of postoperative chronic pain, with youth and length of surgery being risk factors for CPSP, and perioperative pain management with selective COX-2 inhibitors can reduce the incidence of CPSP and is associated with prolonged TFS.


Asunto(s)
Dolor Crónico , Neoplasias Esofágicas , Adolescente , Humanos , Dolor Crónico/tratamiento farmacológico , Dolor Crónico/etiología , Dolor Crónico/prevención & control , Inhibidores de la Ciclooxigenasa 2/uso terapéutico , Recurrencia Local de Neoplasia/tratamiento farmacológico , Dolor Postoperatorio/tratamiento farmacológico , Dolor Postoperatorio/prevención & control , Dolor Postoperatorio/etiología , Analgésicos/uso terapéutico , Neoplasias Esofágicas/tratamiento farmacológico , Factores de Riesgo
6.
Heart Fail Rev ; 28(6): 1405-1415, 2023 11.
Artículo en Inglés | MEDLINE | ID: mdl-37414918

RESUMEN

Anthracyclines and trastuzumab are widely used to treat breast cancer but increase the risk of cardiomyopathy and heart failure. With the use of trastuzumab and anthracycline-containing medications, this study intends to evaluate the effectiveness and security of current treatments against cardiotoxicity. We conducted a systematic review of randomized controlled trials (RCTs), which used at least one angiotensin-converting enzyme inhibitor (ACEI), angiotensin receptor blocker (ARB), or beta-blocker (BB) to prevent cardiotoxicity of antineoplastic agents for breast cancer, in 4 databases (PubMed, Cochrane Library, EMBASE, Web of Science) from inception to 11 May 2022, without language restrictions. The outcome of interest was left ventricular ejection fraction (LVEF) and adverse events. Stata 15 and R software 4.2.1 were used to perform all statistical analyses. The Cochrane version 2 of the risk of bias tool was used to assess the risk of bias, and the grading of recommendations assessment, development, and evaluation (GRADE) assessment was used to appraise the quality of the evidence. Fifteen randomized clinical studies with a total of 1977 patients were included in the analysis. The included studies demonstrated statistically significant LVEF in the ACEI/ARB and BB treatment groups (χ2 = 184.75, I2 = 88.6%, p = 0.000; SMD 0.556, 95% CI 0.299 to 0.813). In an exploratory subgroup analysis, the benefit of experimental agents on LVEF, whether anthracyclines or trastuzumab, was prominent in patients treated with ACEIs, ARBs, and BBs. Compared to placebo, ACEI/ARB and BB treatments in breast cancer patients protect against cardiotoxicity after trastuzumab and anthracycline-containing medication treatment, indicating a benefit for both.


Asunto(s)
Antineoplásicos , Neoplasias de la Mama , Humanos , Femenino , Inhibidores de la Enzima Convertidora de Angiotensina/uso terapéutico , Cardiotoxicidad/etiología , Cardiotoxicidad/prevención & control , Antineoplásicos/efectos adversos , Neoplasias de la Mama/tratamiento farmacológico , Trastuzumab/efectos adversos , Antagonistas de Receptores de Angiotensina/uso terapéutico , Antibióticos Antineoplásicos/uso terapéutico , Antraciclinas/efectos adversos , Ensayos Clínicos Controlados Aleatorios como Asunto
7.
Acta Pharm Sin B ; 13(7): 3137-3152, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37521855

RESUMEN

Type 2 diabetes mellitus (T2DM) therapy is facing the challenges of long-term medication and gradual destruction of pancreatic islet ß-cells. Therefore, it is timely to develop oral prolonged action formulations to improve compliance, while restoring ß-cells survival and function. Herein, we designed a simple nanoparticle with enhanced oral absorption and pancreas accumulation property, which combined apical sodium-dependent bile acid transporter-mediated intestinal uptake and lymphatic transportation. In this system, taurocholic acid (TCA) modified poly(lactic-co-glycolic acid) (PLGA) was employed to achieve pancreas location, hydroxychloroquine (HCQ) was loaded to execute therapeutic efficacy, and 1,2-dilauroyl-sn-glycero-3-phosphocholine (DLPC) was introduced as stabilizer together with synergist (PLGA-TCA/DLPC/HCQ). In vitro and in vivo results have proven that PLGA-TCA/DLPC/HCQ reversed the pancreatic islets damage and dysfunction, thus impeding hyperglycemia progression and restoring systemic glucose homeostasis via only once administration every day. In terms of mechanism PLGA-TCA/DLPC/HCQ ameliorated oxidative stress, remodeled the inflammatory pancreas microenvironment, and activated PI3K/AKT signaling pathway without obvious toxicity. This strategy not only provides an oral delivery platform for increasing absorption and pancreas targetability but also opens a new avenue for thorough T2DM treatment.

8.
Histochem Cell Biol ; 160(2): 97-111, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-37148333

RESUMEN

Tamoxifen (TAM) is an accredited drug used for treatment and prevention of breast cancer. Due to the long-term taking and the trend for women to delay childbearing, inadvertent conception occasionally occurs during TAM treatment. To explore the effects of TAM on a fetus, pregnant mice at gestation day 16.5 were orally administrated with different concentrations of TAM. Molecular biology techniques were used to analyze the effects of TAM on primordial follicle assembly of female offspring and the mechanism. It was found that maternal TAM exposure affected primordial follicle assembly and damaged the ovarian reserve in 3 dpp offspring. Up to 21 dpp, the follicular development had not recovered, with significantly decreased antral follicles and decreased total follicle number after maternal TAM exposure. Cell proliferation was significantly inhibited; however, the cell apoptosis was induced by maternal TAM exposure. Epigenetic regulation was also involved in the process of TAM induced abnormal primordial follicle assembly. The changed levels of H3K4me3, H3K9me3, and H3K27me3 presented the function of histone methylation in the regulation of the effects of maternal TAM exposure on the reproduction of female offspring. Moreover, the changed level of RNA m6A modification and the changed expression of genes related to transmethylation and demethylation proved the role of m6A in the process. Maternal TAM exposure led to abnormal primordial follicle assembly and follicular development by affecting cell proliferation, cell apoptosis, and epigenetics.


Asunto(s)
Epigénesis Genética , Tamoxifeno , Embarazo , Femenino , Ratones , Animales , Tamoxifeno/farmacología , Tamoxifeno/metabolismo , Folículo Ovárico/metabolismo , Apoptosis , Feto
9.
Sci Rep ; 13(1): 4557, 2023 03 20.
Artículo en Inglés | MEDLINE | ID: mdl-36941329

RESUMEN

To explore the relationship between physical exercise and smoking behavior among Chinese residents aged 16 years and older. Analysis based on 29,466 validated cases in the 2018 China Family Panel Studies (CFPS 2018). The chi-square test and Mann-Whitney U test were used for comparative analysis between groups. Logistic regression analysis was used to explore the relationship between physical exercise and smoking behavior. Gender and birth cohort differences in the relationship between physical exercise and smoking behavior were explored based on stratified regression analysis using gender and birth cohort as stratified variables, respectively. Robustness testing based on multiple linear regression analysis using a replacement data approach. There were 8735 cases of smokers among the respondents. After controlling for relevant confounders, there was a significant negative association between physical exercise and smoking behavior among residents [OR 0.718, 95% CI (0.673, 0.765), P < 0.01]. Physical exercise was more significantly associated with smoking behavior among male residents [OR 0.694, 95% CI (0.649, 0.743), P < 0.01], while it was not significantly associated with smoking behavior among female residents [OR 0.901, 95% CI (0.743, 1.093), P > 0.05]. Physical exercise was more significantly associated with smoking behavior in the pre-1948 (OR 0.748), 1959-1968 (OR 0.748), 1969-1978 (OR 0.812), 1989-1998 (OR 0.576) and post-1999 (OR 0.411) birth cohorts, and the association decreased over time and with social change. The results of the robustness test showed that frequency of exercise was significantly and negatively associated with smoking behavior among residents [OR 0.961, 95% CI (0.951, 0.970), P < 0.01]. Physical exercise is negatively associated with smoking behavior among Chinese residents aged 16 years and older, especially among male residents. There is a cohort effect between physical exercise and smoking behavior of the population, that is, the relationship between the two decreases with social change.


Asunto(s)
Pueblos del Este de Asia , Ejercicio Físico , Fumar , Femenino , Humanos , Masculino , China/epidemiología , Fumadores , Fumar/epidemiología , Cese del Hábito de Fumar
10.
ACS Appl Mater Interfaces ; 14(50): 55905-55914, 2022 Dec 21.
Artículo en Inglés | MEDLINE | ID: mdl-36475577

RESUMEN

Flexible transparent metal electrodes (FTMEs) have significant application potentials in the fields of flexible optoelectronic devices due to their outstanding optical transmittance and electrical conductivity. However, obtaining excellent optoelectrical properties and mechanical flexibility of FTMEs is challenging because ultrathin metal layers usually follow an island growth mode. In this paper, flexible transparent ultrathin Ag electrodes with high mechanical stability and good optoelectrical properties were exploited by tailoring the surface properties of plastic substrates with ultraviolet-ozone (UVO) treatment for regulating the nucleation and growth kinetics of Ag films. The composite transparent electrodes of Ag (9 nm)/MoO3 (20 nm) fabricated on the UVO-treated polyethylene terephthalate (PET) substrates possess a low sheet resistance of ∼7.9 Ω/sq, a high optical transmittance of ∼87.2% at 550 nm, a long-period environmental stability of 30 days (∼65 °C, ∼80% humidity), and excellent mechanical flexibility of 100,000 bending cycles at a bending radius of 1.5 mm. These properties are derived from the surface treatment of PET substrates by UVO, which increases substrate surface energy and produces chemical nucleation sites of the phenolic hydroxyl groups. The phenolic hydroxyl groups generated on the PET surface not only provided efficient nucleation sites for subsequent Ag film growth but also formed C-O-Ag bonds between the substrate surface and the Ag layer, which act as "anchor chains" to fix firmly the Ag atoms on the substrate surface. As a universal applicability strategy, the composite electrodes on the UVO-treated polyethylene naphthalate (PEN) and norland optical adhesive 63 (NOA63) substrates also possess excellent optoelectrical properties and mechanical flexibility. Based on the ultrathin Ag composite electrodes, the flexible white organic light-emitting devices with PET, PEN, and NOA63 as substrates present the maximum current efficiencies of 53.0, 77.0, and 65.2 cd/A, respectively.

11.
Medicine (Baltimore) ; 101(41): e30739, 2022 Oct 14.
Artículo en Inglés | MEDLINE | ID: mdl-36254054

RESUMEN

BACKGROUND: Percutaneous coronary intervention (PCI), the most common method in treating coronary artery disease (CAD), has a variety of side effects. Yiqi Huoxue therapy (YQHX) can effectively alleviate the symptoms of patients and reduce the side effects. However, a reliable and systematic assessment of the methodologies is not available. METHODS: Seven electronic databases were searched to identify randomized controlled trials of YQHX method for CAD after PCI. The quality assessment of the trials included was performed by employing the Cochrane Risk of Bias tool. RESULTS: One thousand eight hundred sixty-eight patients from 23 randomized controlled trials were included in this review. The aggregated results showed that the experimental group got better effect in increasing ORR, TCMSRR, ECG, HDL-C, and in lowering the level of CRP, TC, and MACE in comparison with the control group. CONCLUSION: YQHX method is a valid complementary and alternative therapy in the management of CAD after PCI, and is an effective and safe therapy for CAD.


Asunto(s)
Enfermedad de la Arteria Coronaria , Intervención Coronaria Percutánea , Humanos , Enfermedad de la Arteria Coronaria/diagnóstico , Enfermedad de la Arteria Coronaria/tratamiento farmacológico , Intervención Coronaria Percutánea/métodos , Proyectos de Investigación , Ensayos Clínicos Controlados Aleatorios como Asunto
12.
J Pain Res ; 15: 2867-2878, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36124038

RESUMEN

Purpose: To evaluate the outcomes, feasibility, and safety of endoscopic unilateral laminectomy, bilateral decompression and discectomy (Endo-ULBDD) for central lumbar spinal stenosis (CLSS) combined with disc herniation (DH). Methods: This study includes 39 patients diagnosed with CLSS combined with DH who met the inclusion criteria and underwent surgery for Endo-ULBDD from April 2020 to March 2021. The mean age of the patients, operation time, hospitalization time, time in bed, and complications were recorded. Patients were followed up for at least 12 months. Visual analog scale (VAS) scores for low-back and lower-limb pain and Oswestry Disability Index (ODI) scores were evaluated preoperatively, before discharge, and at 3, 6, and 12 months postoperatively. To evaluate clinical effectiveness 12 months postoperatively, the modified MacNab criteria were used. Results: The mean age of the patients was 59.9 years, the mean operation time was 82.1 minutes, the mean hospitalization time was 3.7 days, and the mean time in bed was 20.9 hours. The mean VAS scores of low-back and lower-limb pain improved from 5.9 and 7.2 to 2.0 and 1.6, respectively (P < 0.05). The ODI score improved from 56.0 to 16.7 (P < 0.05). The overall excellent-good rate of the modified MacNab criteria was 89.7%. Two kinds of complications occurred in 4 patients (10.3%), including 1 patient whose inferior articular process was excessively removed and 3 patients who suffered from postoperative dysesthesia. No other severe complications were noted. Conclusion: Endo-ULBDD is a safe, feasible, efficient, and minimally invasive approach to treating CLSS combined with DH.

13.
Stem Cell Res Ther ; 13(1): 398, 2022 08 04.
Artículo en Inglés | MEDLINE | ID: mdl-35927718

RESUMEN

BACKGROUND: Propofol is a commonly used anesthetic. However, its effects on glioma growth and recurrence remain largely unknown. METHODS: The effect of propofol on glioma growth was demonstrated by a series of in vitro and in vivo experiments (spheroidal formation assay, western blotting, and xenograft model). The acyl-biotin exchange method and liquid chromatography-mass spectrometry assays identified palmitoylation proteins mediated by the domain containing the Asp-His-His-Cys family. Western blotting, co-immunoprecipitation, quantitative real-time polymerase chain reaction, co-immunoprecipitation, chromatin immunoprecipitation, and luciferase reporter assays were used to explore the mechanisms of the γ-aminobutyric acid receptor (GABAAR)/Src/ZDHHC5/EZH2 signaling axis in the effects of propofol on glioma stem cells (GSCs). RESULTS: We found that treatment with a standard dose of propofol promoted glioma growth in nude mice compared with control or low-dose propofol. Propofol-treated GSCs also led to larger tumor growth in nude mice than did vector-treated tumors. Mechanistically, propofol enhances the stem-like properties of gliomas through GABAAR to increase Src expression, thereby enhancing the palmitoylation of ZDHHC5-mediated EZH2 and Oct4 expression. CONCLUSION: These results demonstrate that propofol may promote glioma growth through the GABAAR-Src-ZDHHC5-EZH2 mechanism and are helpful in guiding the clinical use of propofol to obtain a better patient prognosis after the surgical resection of tumors.


Asunto(s)
Glioma , Propofol , Animales , Línea Celular Tumoral , Proliferación Celular , Proteína Potenciadora del Homólogo Zeste 2/metabolismo , Glioma/patología , Humanos , Lipoilación , Ratones , Ratones Desnudos , Células Madre Neoplásicas/metabolismo , Propofol/metabolismo , Propofol/farmacología , Ácido gamma-Aminobutírico/metabolismo , Ácido gamma-Aminobutírico/farmacología
14.
Front Microbiol ; 13: 833968, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35531271

RESUMEN

Alfalfa long-term continuous cropping (CC) can pose a serious threat to alfalfa production. However, the mechanism of alfalfa CC obstacle is unclear as of today. Our preliminary study showed that the main factors of CC obstacle were not the lack of nutrients or water in alfalfa rhizosphere soils. Further, we evaluated physic-chemical property, microbial population structure, and metabolite differences of alfalfa rhizosphere soils with CC for 1, 7, and 14 years based on analysis of metabolomics and microbiomics. Four phenolic acid metabolites, including p-coumaric acid, ferulic acid, vanillic acid, and p-hydroxybenzoic acid, were found to have significant differences among different CC years, which may be the key factors of CC obstacle. Among them, p-coumaric acid and ferulic acid could significantly decrease the germination rate of alfalfa seeds by 21.11 and 16.67% at the concentration of 100 µg/mL and the height (root length) of alfalfa seedlings by 21% (32.9%) and 13.72% (16.45%). Moreover, these metabolites could effectively promote the growth of some pathogenic fungi, causing alfalfa root rot. Among them, p-coumaric acid obviously and significantly aggravated the occurrence of alfalfa root rot. With the increase of CC years, soil microbial community changed from fungi to bacteria; fungi decreased by 10.83%, fungi increased by 8.08%, and beneficial microorganisms decreased with the increase of CC years. Field analysis and experimental verification showed that the above results were consistent with that of CC obstacle in the field. Among the key metabolites, the autotoxicity of p-coumaric acid was the strongest. This study fully proved that the continuous accumulation of autotoxic substances in alfalfa rhizosphere was the key factor causing alfalfa CC obstacles.

15.
Phytother Res ; 36(8): 3265-3275, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-35606908

RESUMEN

Chronic kidney disease (CKD) is often associated with muscle atrophy. However, the underlying molecular mechanisms are still not well understood. Here, we treated 5/6-nephrectomized (5/6Nx) rats with resveratrol and found that this treatment greatly improves renal function as evidenced by reduced proteinuria and cystatin C. Moreover, resveratrol ameliorates renal fibrosis by reducing transforming growth factor ß (TGF-ß) and connective tissue growth factor (CTGF). Meanwhile, muscle atrophy in these 5/6Nx rats was largely attenuated by resveratrol. Immunoprecipitation revealed that SIRT1 physically interacts with FoxO1 in muscle, and this interaction was weakened in 5/6Nx rats. As a consequence, acetylated FoxO1 was increased in muscle of 5/6Nx rats. The application of resveratrol markedly reverses this trend. These data point out that SIRT1 is a key factor for linking renal disease and muscle atrophy. Indeed, both renal dysfunction and muscle atrophy were further aggravated by 5/6Nx in Sirt1+/- mice. Taken together, our data indicate that SIRT1 plays a pivotal role in muscle atrophy in CKD, and FoxO1 might be a substrate of SIRT1 in this process. Furthermore, resveratrol, together with other agonists of SIRT1, may hold great therapeutic potentials for treating CKD and its related muscle atrophy.


Asunto(s)
Insuficiencia Renal Crónica , Estilbenos , Animales , Proteína Forkhead Box O1/metabolismo , Ratones , Atrofia Muscular/tratamiento farmacológico , Proteínas del Tejido Nervioso/metabolismo , Ratas , Insuficiencia Renal Crónica/tratamiento farmacológico , Resveratrol/farmacología , Transducción de Señal , Sirtuina 1/metabolismo , Estilbenos/farmacología
16.
World J Diabetes ; 13(4): 308-318, 2022 Apr 15.
Artículo en Inglés | MEDLINE | ID: mdl-35582668

RESUMEN

Diabetic kidney disease (DKD) is one of the major chronic complications of diabetes mellitus (DM), as well as a main cause of end-stage renal disease. Over the last few years, substantial research studies have revealed a contributory role of gut microbiota in the process of DM and DKD. Metabolites of gut microbiota like lipopolysaccharide, short-chain fatty acids, and trimethylamine N-oxide are key mediators of microbial-host crosstalk. However, the underlying mechanisms of how gut microbiota influences the onset and progression of DKD are relatively unknown. Besides, strategies to remodel the composition of gut microbiota or to reduce the metabolites of microbiota have been found recently, representing a new potential remedial target for DKD. In this mini-review, we will address the possible contribution of the gut microbiota in the pathogenesis of DKD and its role as a therapeutic target.

17.
Clin Nurs Res ; 31(6): 1189-1198, 2022 07.
Artículo en Inglés | MEDLINE | ID: mdl-35575261

RESUMEN

To investigate adherence to immunosuppressive medication (IM) in kidney transplant recipients (KTRs) and analyze the associated factors using the Theory of Planned Behavior (TPB). Data were collected at Time1 (T1) and 3 months later (T2). T1: the elements of the TPB, past behavior, beliefs about medicines, perceived social support were measured. T2: IM adherence was measured. Structural equation modeling was applied to analyze the associated factors of medication adherence. A total of 246 KTRs were included. The average IM adherence score of KTRs' was 4.86 (SD = 1.63). Of the recipients, 39.43% had one aspect of non-adherence to IM. The model could explain 28.7% of the variance in adherence to IM (R2 = .287, p = .006). TPB is a useful tool for understanding adherence to IM in KTRs. Caregivers can provide effective interventions during follow-up, which should focus on improving medication beliefs as well as provision of other external support especially from outside.


Asunto(s)
Trasplante de Riñón , Humanos , Inmunosupresores/uso terapéutico , Cumplimiento de la Medicación , Apoyo Social
18.
ACS Appl Mater Interfaces ; 14(14): 16920-16927, 2022 Apr 13.
Artículo en Inglés | MEDLINE | ID: mdl-35352929

RESUMEN

Interfacial passivation engineering plays a crucial role in the explosive development of perovskite solar cells (PSCs). However, previous studies on passivation layers mainly focused on the defect-passivation mechanism rather than the interfacial charge transport efficiency. Here, by precisely tuning the interplanar spacing of the ammonium iodide passivation layer, we elucidate the promoting effect of the reduced interplanar spacing of the passivation layer on the photogenerated hole tunneling efficiency at the interface of the hole transport layer and perovskite. Compared with the commonly used phenethylammonium iodide passivation layer with a wider interplanar spacing, 2-chlorobenzylammonium iodide with a narrower interplanar spacing can help break through the thickness limitation of the passivation layer, thus showing a better comprehensive passivation effect. Therefore, we demonstrate photovoltaic devices with an enhanced fill factor (FF) and open-circuit voltage (VOC), which yield a high power conversion efficiency (PCE) of up to 23.1%. We thus identify an efficient scheme to achieve optimal passivation conditions for high-performance PSCs.

19.
Front Pharmacol ; 13: 773282, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35153776

RESUMEN

Background and objective: Andrographis paniculata (AP) is a traditionally used herbaceous plant, whose main active constituent is andrographolide. Andrographolide derivative medications and herbal preparations of AP are often used to treat respiratory tract infections. This study aims to systematically evaluate the safety of andrographolide derivative medications and herbal preparations of AP based on clinical studies. Methods: English and Chinese databases were searched for all types of clinical studies that reported adverse drug reactions (ADRs) and adverse events (AEs) of andrographolide derivative medications and herbal preparations of AP. The ADRs and AEs were classified according to manifestations, and graded according to severity. Single-rate meta-analysis was performed for ADR incidence using R software. Results: A total of 262 studies were included, including 125 randomized controlled trials, 23 non-randomized controlled trials, 6 case series, and 108 case reports. In 9490 participants using andrographolide derivative injections, 383 (4.04%) reported ADRs. Meta-analysis showed that the ADR incidence of three most frequently used injections of andrographolide derivatives (andrographolide sulfonate, potassium sodium dehydroandrographolide succinate, and potassium dehydroandrographolide succinate) were 5.48% [95% CI (4.47%, 6.72%)], 3.69% [95% CI (2.59%, 4.94%)] and 5.33% [95% CI (3.68%, 7.72%)], respectively, which may be slightly higher than the actual ADR incidence, because only studies that reported the occurrence of ADRs or AEs were included, but studies without ADR and AE were not included. The ADRs of andrographolide derivative injections were mainly gastrointestinal, skin and subcutaneous tissue disorders, and anaphylaxis. Fifty-five patients experienced life-threatening anaphylactic shock, three patients died, and the causation attributed to the andrographolide derivative injection. Other ADRs were mild, moderate or medically significant. Nine herbal preparations of AP were tested in 10 studies, and the reported ADRs were mainly mild to moderate gastrointestinal, skin and subcutaneous tissue disorders. Except for five patients using andrographolide derivative injections eventually died, most of the ADRs were alleviated after drug withdrawal and symptomatic treatment. Conclusions: The ADRs of andrographolide derivative medications are few, but can be life-threatening, mainly gastrointestinal, skin and subcutaneous tissue disorders, and anaphylaxis. Injections of andrographolide derivatives should be used with caution. Herbal preparations of AP are essentially safe. Systematic Review Registration: [website], identifier [registration number].

20.
Nat Commun ; 13(1): 205, 2022 01 11.
Artículo en Inglés | MEDLINE | ID: mdl-35017543

RESUMEN

The genome exists as an organized, three-dimensional (3D) dynamic architecture, and each cell type has a unique 3D genome organization that determines its cell identity. An unresolved question is how cell type-specific 3D genome structures are established during development. Here, we analyzed 3D genome structures in muscle cells from mice lacking the muscle lineage transcription factor (TF), MyoD, versus wild-type mice. We show that MyoD functions as a "genome organizer" that specifies 3D genome architecture unique to muscle cell development, and that H3K27ac is insufficient for the establishment of MyoD-induced chromatin loops in muscle cells. Moreover, we present evidence that other cell lineage-specific TFs might also exert functional roles in orchestrating lineage-specific 3D genome organization during development.


Asunto(s)
Genoma , Histonas/genética , Músculo Esquelético/metabolismo , Proteína MioD/genética , Mioblastos/metabolismo , Animales , Sitios de Unión , Factor de Unión a CCCTC/genética , Factor de Unión a CCCTC/metabolismo , Línea Celular , Linaje de la Célula/genética , Ensamble y Desensamble de Cromatina , Cromosomas/química , Cromosomas/metabolismo , Regulación del Desarrollo de la Expresión Génica , Biblioteca de Genes , Histonas/metabolismo , Ratones , Ratones Endogámicos C57BL , Ratones Noqueados , Músculo Esquelético/citología , Proteína MioD/metabolismo , Mioblastos/citología , Miogenina/genética , Miogenina/metabolismo , Cadenas Pesadas de Miosina/genética , Cadenas Pesadas de Miosina/metabolismo , Unión Proteica , Isoformas de Proteínas/genética , Isoformas de Proteínas/metabolismo , Transducción de Señal
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