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1.
Front Endocrinol (Lausanne) ; 15: 1273265, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38469137

RESUMEN

Objective: The specific benefit and selection of acupoints in acupuncture for diabetic kidney disease (DKD) remains controversial. This study aims to explore the specific benefits and acupoints selection of acupuncture for DKD through meta-analysis and data mining. Methods: Clinical trials of acupuncture for DKD were searched in eight common databases. Meta-analysis was used to evaluate its efficacy and safety, and data mining was used to explore its acupoints selection. Results: Meta-analysis displayed that compared with the conventional drug group, the combined acupuncture group significantly increased the clinical effective rate (risk ratio [RR] 1.35, 95% confidence interval [CI] 1.20 to 1.51, P < 0.00001) and high-density lipoprotein cholesterol (mean difference [MD] 0.36, 95% CI 0.27 to 0.46, P < 0.00001), significantly reduced the urinary albumin (MD -0.39, 95% CI -0.42 to -0.36, P < 0.00001), urinary microalbumin (MD -32.63, 95% CI -42.47 to -22.79, P < 0.00001), urine ß2-microglobulin (MD -0.45, 95% CI -0.66 to -0.24, P < 0.0001), serum creatinine (MD -15.36, 95% CI -21.69 to -9.03, P < 0.00001), glycated hemoglobin A1c (MD -0.69, 95% CI -1.18 to -0.19, P = 0.006), fasting blood glucose (MD -0.86, 95% CI -0.90 to -0.82, P < 0.00001), 2h postprandial plasma glucose (MD -0.87, 95% CI -0.92 to -0.82, P < 0.00001), total cholesterol (MD -1.23, 95% CI -2.05 to -0.40, P = 0.003), triglyceride (MD -0.69, 95% CI -1.23 to -0.15, P = 0.01), while adverse events were comparable. Data mining revealed that CV12, SP8, SP10, ST36, SP6, BL20, BL23, and SP9 were the core acupoints for DKD treated by acupuncture. Conclusion: Acupuncture improved clinical symptoms, renal function indices such as uALB, umALB, uß2-MG, and SCR, as well as blood glucose and blood lipid in patients with DKD, and has a favorable safety profile. CV12, SP8, SP10, ST36, SP6, BL20, BL23, and SP9 are the core acupoints for acupuncture in DKD, and this program is expected to become a supplementary treatment for DKD.


Asunto(s)
Terapia por Acupuntura , Diabetes Mellitus , Nefropatías Diabéticas , Humanos , Glucemia , Colesterol , Minería de Datos , Nefropatías Diabéticas/tratamiento farmacológico , Ensayos Clínicos como Asunto
2.
Nucleic Acids Res ; 52(D1): D426-D433, 2024 Jan 05.
Artículo en Inglés | MEDLINE | ID: mdl-37933852

RESUMEN

The DescribePROT database of amino acid-level descriptors of protein structures and functions was substantially expanded since its release in 2020. This expansion includes substantial increase in the size, scope, and quality of the underlying data, the addition of experimental structural information, the inclusion of new data download options, and an upgraded graphical interface. DescribePROT currently covers 19 structural and functional descriptors for proteins in 273 reference proteomes generated by 11 accurate and complementary predictive tools. Users can search our resource in multiple ways, interact with the data using the graphical interface, and download data at various scales including individual proteins, entire proteomes, and whole database. The annotations in DescribePROT are useful for a broad spectrum of studies that include investigations of protein structure and function, development and validation of predictive tools, and to support efforts in understanding molecular underpinnings of diseases and development of therapeutics. DescribePROT can be freely accessed at http://biomine.cs.vcu.edu/servers/DESCRIBEPROT/.


Asunto(s)
Aminoácidos , Proteoma , Proteoma/química , Bases de Datos Factuales
3.
World J Gastroenterol ; 29(42): 5781-5799, 2023 Nov 14.
Artículo en Inglés | MEDLINE | ID: mdl-38075850

RESUMEN

BACKGROUND: As an emerging potential risk factor for gastric cancer, autoimmune gastritis (AIG) has garnered increasing attention from researchers. AIM: To analyze the research overview and popular topics in the field of AIG using bibliometrics. METHODS: Relevant publications on AIG in the Web of Science Core Collection were collated, and data visualization and analysis of the number of publications, countries, institutions, journals, authors, keywords, and citations were performed using software such as VOSviewer, CiteSpace, and Scimago Graphic. RESULTS: In total, 316 relevant articles were included in the analysis. From 2015 to 2022, the number of publications increased annually. The countries, institutions, authors, and journals with the highest number of publications in this field were Italy, Monash University, Toh BH, and Internal Medicine. The main keywords used in this field of research were pathogenesis, Helicobacter pylori, autoantibody, parietal cell antibody, atrophic gastritis, classification, diagnosis, autoimmune disease, risk, cancer, gastric cancer, vitamin B12 deficiency, and pernicious anemia. The following directions may be popular for future research: (1) The role of Helicobacter pylori in the pathogenesis of AIG; (2) diagnostic criteria for AIG and reference values for serum antibodies; (3) comorbidity mechanisms between AIG and other autoimmune diseases; (4) specific risks of AIG complicating gastric and other cancers; and (5) the role of vitamin B12 supplementation in patients with early-stage AIG. CONCLUSION: This bibliometric analysis reported on popular topics and emerging trends in AIG, with diagnosis and prognosis being research hotspots in this field.


Asunto(s)
Enfermedades Autoinmunes , Gastritis Atrófica , Gastritis , Neoplasias Gástricas , Humanos , Autoanticuerpos , Bibliometría , Gastritis/epidemiología , Gastritis/diagnóstico , Neoplasias Gástricas/epidemiología , Neoplasias Gástricas/complicaciones
4.
Front Pharmacol ; 14: 1147360, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37405052

RESUMEN

Objective: This is the first study to explore the mechanism of colchicine in treating coronary artery disease using network pharmacology and molecular docking technology, aiming to predict the key targets and main approaches of colchicine in treating coronary artery disease. It is expected to provide new ideas for research on disease mechanism and drug development. Methods: Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP), Swiss Target Prediction and PharmMapper databases were used to obtain drug targets. GeneCards, Online Mendelian Inheritance in Man (OMIM), Therapeutic Target Database (TTD), DrugBank and DisGeNET databases were utilized to gain disease targets. The intersection of the two was taken to access the intersection targets of colchicine for the treatment of coronary artery disease. The Sting database was employed to analyze the protein-protein interaction network. Gene Ontology (GO) functional enrichment analysis was performed using Webgestalt database. Reactom database was applied for Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis. Molecular docking was simulated using AutoDock 4.2.6 and PyMOL2.4 software. Results: A total of 70 intersecting targets of colchicine for the treatment of coronary artery disease were obtained, and there were interactions among 50 targets. GO functional enrichment analysis yielded 13 biological processes, 18 cellular components and 16 molecular functions. 549 signaling pathways were obtained by KEGG enrichment analysis. The molecular docking results of key targets were generally good. Conclusion: Colchicine may treat coronary artery disease through targets such as Cytochrome c (CYCS), Myeloperoxidase (MPO) and Histone deacetylase 1 (HDAC1). The mechanism of action may be related to the cellular response to chemical stimulus and p75NTR-mediated negative regulation of cell cycle by SC1, which is valuable for further research exploration. However, this research still needs to be verified by experiments. Future research will explore new drugs for treating coronary artery disease from these targets.

5.
Int J Anal Chem ; 2023: 5722131, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37304842

RESUMEN

Materials and Methods: The metabolomics-proteomics of sixty patients with T2DM were acquired by high-performance liquid chromatography (HPLC). In addition, some clinical features, containing total cholesterol (TC), triglycerides (TG), hemoglobin A1c (HbA1c), body mass index (BMI), and low-density lipoprotein (LDL) together with high-density lipoprotein (HDL), were determined via clinical detection strategies. Abundant metabolites and proteins, respectively, were identified with the analysis of liquid chromatography tandem mass spectrometry (LC-MS/MS). Results: 22 differentially abundant metabolites and 15 differentially abundant proteins were determined. The analysis of bioinformatics suggested that the differentially abundant proteins were commonly associated with the renin-angiotensin system, vitamin digestion and absorption, hypertrophic cardiomyopathy, and so on. Furthermore, differentially abundant metabolites were amino acids and were associated with the biosynthesis of CoA and pantothenate, together with the metabolisms of phenylalanine, beta-alanine, proline, and arginine. Combination analysis revealed that the vitamin metabolism pathway was predominantly affected. Conclusions: DHS syndrome can be separated by certain metabolic-proteomic differences, and metabolism is particularly prominent, especially in vitamin digestion and absorption. From the molecular level, we provide preliminary data for the extensive application of TCM in the study of T2DM, and at the same time benefited in a sense diagnosis and treatment of T2DM.

6.
Front Endocrinol (Lausanne) ; 14: 1290731, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38440060

RESUMEN

Objective: The effect of tea on gout and uric acid is still controversial. This study aims to analyze the effect of tea intake on genetic predisposition to gout, idiopathic gout, gout due to impairment of renal function as well as uric acid by Mendelian randomization (MR). Methods: Forty independent single nucleotide polymorphisms (SNPs) associated with tea intake were selected from UK Biobank. SNPs for uric acid were obtained from BioBank Japan, SNPs for gout were obtained from UK Biobank, and SNPs for gout due to impairment of renal function and idiopathic gout were derived from FinnGen. The causal relationship of exposure-outcome was tested using inverse variance weighted, MR-Egger and weighted median. MR-Egger intercept was employed to assess horizontal pleiotropy, Cochran's Q test was used to assess heterogeneity, and leave-one-out sensitivity analysis was utilized to analyze the stability of the results. Results: The results of MR analysis showed that tea intake was negatively associated with gout due to impairment of renal function (OR 0.997, 95% CI 0.994 to 0.999, P = 0.017), whereas there was no causal association with gout, idiopathic gout, and uric acid (P > 0.05), for which sensitivity analysis suggested that these results were robust. Conclusions: There was a genetic predisposition effect of increased tea intake on the reduced risk of gout due to impairment of renal function, whereas there was no such effect on gout, idiopathic gout, and uric acid. Tea intake may become an important option in the dietary treatment of gout due to impairment of renal function.


Asunto(s)
Gota , Ácido Úrico , Humanos , Predisposición Genética a la Enfermedad , Gota/genética , Análisis de la Aleatorización Mendeliana ,
7.
Medicine (Baltimore) ; 101(47): e30945, 2022 Nov 25.
Artículo en Inglés | MEDLINE | ID: mdl-36451450

RESUMEN

BACKGROUND: Although anti-inflammatory and immunomodulatory measures have delayed the progression of ulcerative colitis (UC) to a certain extent, the adverse drug reactions and recurrence after recovery still trouble clinicians. Acupoint catgut embedding is a possible alternative strategy for the treatment of UC, but its clinical efficacy remains controversial. Therefore, this study systematically evaluated the clinical efficacy and safety of acupoint catgut embedding compared with conventional western medicine in the treatment of UC. METHODS: VIP, Wanfang, China National Knowledge Infrastructure, China Biology Medicine, PubMed, Embase, Web of Science, the Cochrane Library databases were searched. And the publication time of the literature was limited from the time that the database was established to February 2022. Two researchers independently screened the literature, extracted data, and assessed risk of bias as required. Meta-analysis was performed with Revman 5.3. Trial sequential analysis (TSA) was performed with TSA 0.9.5.10 Beta. Publication bias was assessed by Stata 15.0. And evidence quality was appraised with GRADEpro3.6. RESULTS: A total of 10 studies were listed, with a total sample size of 782 cases. Meta-analysis showed that compared with conventional western medicine, acupoint catgut embedding can effectively improve the total effective rate of clinical symptoms (relative risk [RR] = 1.16, 95% confidence interval [CI] = [1.09,1.24], P < .00001), endoscopic total effective rate (RR = 1.16, 95%CI = [1.08,1.25], P < .0001), clinical symptom cure rate (RR = 1.80, 95%CI = [1.37,2.38], P < .0001), and endoscopic cure rate (RR = 1.97, 95%CI = [1.36,2.86], P = .0004) of UC, but the adverse event rate (RR = 0.20, 95%CI = [0.01,4.00], P = .29) was similar. Trial sequential analysis indicated that the efficacy endpoint was conclusive. Harbord test confirmed no significant publication bias. The quality of evidence for these outcomes ranges from low to medium. CONCLUSION: The clinical efficacy of acupoint catgut embedding in the treatment of UC is superior to that of conventional western medicine, and the safety may be equivalent to that of conventional western medicine, which has the value of further research and exploration.


Asunto(s)
Productos Biológicos , Colitis Ulcerosa , Humanos , Puntos de Acupuntura , Catgut , Colitis Ulcerosa/terapia
8.
Genes Nutr ; 17(1): 14, 2022 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-36183068

RESUMEN

BACKGROUND: Interactions between genetic, metabolic, and environmental factors lead to gestational diabetes mellitus (GDM). We aimed to examine interactive effects of cyclin-dependent kinase 5 regulatory subunit-associated protein1-like 1(CDKAL1) rs7747752 polymorphism with low serum levels of L-carnitine, choline, and betaine for GDM. METHODS: A nested case-control study of 207 GDM women and their one-to-one, age-matched controls was organized from a prospective cohort of pregnant women in Tianjin, China. Conditional logistic regressions were used to test associations between CDKAL1 rs7747752 and serum levels of L-carnitine, choline, and betaine, and the risk of GDM. Additive interactions were performed to examine interactive effects of rs7747752 and low serum levels of L-carnitine, choline, and betaine on the risk of GDM. RESULTS: The CDKAL1 rs7747752 G > C was associated with GDM in additive, dominant, and recessive model (P <0.05). The rs7747752 CC genotype enhanced the OR of L-carnitine ≤ vs. > 150 nmol/mL for GDM from 6.14 (2.61-14.4) to 19.6 (5.65-68.1) and the OR of choline ≤ vs. > 110 nmol/mL from 2.37 (1.07-5.28) to 12.1 (3.22-45.6), with significant additive interactions. Similarly, CG genotype also enhanced the OR of L-carnitine ≤ vs. > 150 nmol/mL for GDM from 4.70 (2.01-11.0) to 11.4 (3.98-32.9), with a significant additive interaction. However, the additive interaction between rs7747752 and betaine ≤ 200 nmol/mL on the risk of GDM was not significant. CONCLUSIONS: The CC or CG genotype carriers in rs7747752 of CDKAL1 who have a low serum level of L-carnitine or choline are at a particular high risk of GDM. Randomized controlled trials are warranted to test the effect of supplement of L-carnitine or choline on the risk of GDM in the high-risk group.

9.
Artículo en Inglés | MEDLINE | ID: mdl-35845598

RESUMEN

Objective: To establish a prediction model for the risk evaluation of chronic kidney disease (CKD) to guide the management and prevention of CKD. Methods: A total of 1263 patients with CKD and 1948 patients without CKD admitted to the Tongde Hospital of the Zhejiang Province from January 1, 2008, to December 31, 2018, were retrospectively analyzed. Spearman's correlation was used to analyze the relationship between CKD and laboratory parameters. XGBoost, random forest, Naive Bayes, support vector machine, and multivariate logistic regression algorithms were employed to establish prediction models for the risk evaluation of CKD. The accuracy, precision, recall, F1 score, and area under the receiver operating curve (AUC) of each model were compared. The new bidirectional encoder representations from transformers with light gradient boosting machine (MD-BERT-LGBM) model was used to process the unstructured data and transform it into researchable unstructured vectors, and the AUC was compared before and after processing. Results: Differences in laboratory parameters between CKD and non-CKD patients were observed. The neutrophil ratio and white blood cell count were significantly associated with the occurrence of CKD. The XGBoost model demonstrated the best prediction effect (accuracy = 0.9088, precision = 0.9175, recall = 0.8244, F1 score = 0.8868, AUC = 0.8244), followed by the random forest model (accuracy = 0.9020, precision = 0.9318, recall = 0.7905, F1 score = 0.581, AUC = 0.9519). Comparatively, the predictions of the Naive Bayes and support vector machine models were inferior to those of the logistic regression model. The AUC of all models was improved to some extent after processing using the new MD-BERT-LGBM model. Conclusion: The new MD-BERT-LGBM model with the inclusion of unstructured data has contributed to the higher accuracy, sensitivity, and specificity of the prediction models. Clinical features such as age, gender, urinary white blood cells, urinary red blood cells, thrombin time, serum creatinine, and total cholesterol were associated with CKD incidence.

10.
Zhongguo Ying Yong Sheng Li Xue Za Zhi ; 38(5): 537-542, 2022 Sep.
Artículo en Chino | MEDLINE | ID: mdl-37088766

RESUMEN

OBJECTIVE: To investigate the effects of paeonol on low-density lipoprotein-induced human vascular endothelial cell injury and its molecular mechanisms. METHODS: Human umbilical vein endothelial cells (HUVECs) were divided into 9 groups, normal control (NC) group, ox-LDL group (100 ng/L ox-LDL), low, medium, and high-dose paeonol groups (60 µmol/L, 120 µmol/L, 240 µmol/L paeonol+100 ng/L ox-LDL), ox-LDL+small interfering RNA negative control (si-NC) group, ox-LDL+circ_0003204 small interfering RNA (si-circ_0003204) group, middle dose group+ox-LDL+circ_0003204 overexpression negative control (pcDNA-NC) group, middle dose group+ox-LDL+circ_0003204 overexpression (pcDNA-circ_0003204) group, three replicate wells in each group. MTT flow cytometry, and Western blot were used to detect cell proliferation, apoptosis and protein (CDK2, Bcl2, p27, Bax) expressions, respectively. Malondialdehyde (MDA) and superoxide dismutase (SOD) kit were used to detect MDA content and SOD activity; real-time quantitative PCR (RT-qPCR) was used to detect the expression of circ_0003204. RESULTS: Compared with the NC group, the proliferation activity, protein expressions of CDK2 and Bcl2, and SOD activity of HUVECs in the ox-LDL group were decreased significantly (P<0.05), and the apoptosis rate, protein expressions of p27 and Bax, MDA content, and circ_0003204 expression were increased significantly (P< 0.05). Compared with the ox-LDL group, the proliferation activity, protein (CDK2, Bcl2) expressions and SOD activity of HUVECs in the low, medium and high dose paeonol groups were increased significantly (P<0.05), and the apoptosis rate, protein (p27, Bax) expressions, MDA content And circ_0003204 expression were decreased significantly (P< 0.05). Compared with ox-LDL+si-NC group, the proliferation activity, protein (CDK2, Bcl2) expressions, SOD activity of HUVECs in ox-LDL+si-circ_0003204 group were increased significantly (P<0.05), the apoptosis rate, protein (p27, Bax) expressions, and the content of MDA were decreased significantly (P<0.05). Compared with the middle-dose+ox-LDL+pcDNA-NC group, the HUVECs proliferation activity, protein (CDK2, Bcl2) expressions, and SOD activity in the middle-dose+ox-LDL+pcDNA-circ_0003204 group were decreased significantly (P<0.05), and the levels of circ_0003204, apoptosis rate, protein (p27, Bax) expressions and MDA content were increased significantly (P<0.05). CONCLUSION: Paeonol can inhibit ox-LDL-induced apoptosis and oxidative stress of human umbilical vein endothelial cells, and alleviate human umbilical vein endothelial cell injury. The mechanism of action may be related to the down-regulation of circ_0003204 expression.


Asunto(s)
MicroARNs , Estrés Oxidativo , Humanos , Células Cultivadas , Proteína X Asociada a bcl-2/metabolismo , Células Endoteliales de la Vena Umbilical Humana , Apoptosis , Superóxido Dismutasa/metabolismo , Lipoproteínas LDL/farmacología , MicroARNs/metabolismo
11.
Front Plant Sci ; 12: 662091, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34122484

RESUMEN

Soybean sprouts are a flavorful microgreen that can be eaten all year round and are widely favored in Southeast Asia. In this study, the regulatory mechanism of calcium on anthocyanin biosynthesis in soybean sprouts under blue light was investigated. The results showed that blue light, with a short wavelength, effectively induced anthocyanin accumulation in the hypocotyl of soybean sprout cultivar "Dongnong 690." Calcium supplementation further enhanced anthocyanin content, which was obviously inhibited by LaCl3 and neomycin treatment. Moreover, exogenous calcium changed the metabolism of anthocyanins, and seven anthocyanin compounds were detected. The trend of calcium fluorescence intensity in hypocotyl cells, as well as that of the inositol 1,4,5-trisphosphate and calmodulin content, was consistent with that of anthocyanins content. Specific spatial distribution patterns of calcium antimonate precipitation were observed in the ultrastructure of hypocotyl cells under different conditions. Furthermore, calcium application upregulated the expression of genes related to anthocyanin biosynthesis, and calcium inhibitors suppressed these genes. Finally, transcriptomics was performed to gain global insights into the molecular regulation mechanism of calcium-associated anthocyanin production. Genes from the flavonoid biosynthesis pathway were distinctly enriched among the differentially expressed genes, and weighted gene co-expression network analysis showed that two MYBs were related to the accumulation of anthocyanins. These results indicated that calcium released from apoplast and intracellular stores in specific spatial-temporal features promote blue light-induced anthocyanin accumulation by upregulation of the expression of genes related to anthocyanin synthesis of "Dongnong 690" hypocotyl. The findings deepen the understanding of the calcium regulation mechanism of blue light-induced anthocyanin accumulation in soybean sprouts, which will help growers produce high-quality foods beneficial for human health.

12.
Mol Med Rep ; 23(3)2021 03.
Artículo en Inglés | MEDLINE | ID: mdl-33655332

RESUMEN

Previous studies have suggested that the herbal medicine simiaosan has beneficial effects on gouty arthritis (GA), for which conventional Western medicines are insufficient (particularly in cases of multiple episodes). The objective of the present study was to investigate the mechanism by which simiaosan alleviated the symptoms of GA. Sprague­Dawley rat models of acute GA were successfully established, as verified by pathological analyses. Additionally, an NLR family pyrin domain containing 3 (NLRP3) overexpression vector was constructed and a high transfection efficiency was confirmed by reverse transcription PCR. The following five treatment groups were established: i) Normal control; ii) model + saline; iii) model + simiaosan; iv) model + NALP3­overexpressing adenovirus + simiaosan; and v) model + empty vector adenovirus + simiaosan. The samples from mice in each group were subjected to hematoxylin and eosin (H&E) staining for assessing the histopathological changes, enzyme­linked immunosorbent assays for determining IL­1ß and TGF­ß1 levels and western blotting for evaluating NALP3 expression. H&E staining indicated that simiaosan could reduce the infiltration of inflammatory cells, while NALP3 overexpression aggravated the inflammatory response in tissues. Expression levels of IL­1ß, TGF­ß1 and NALP3 were significantly higher in the model and the model + NALP3­overexpressing adenovirus + simiaosan groups compared with the normal control group. Levels of IL­1ß, TGF­ß1 and NALP3 were significantly lower in the model + simiaosan and model + empty vector adenovirus + simiaosan groups compared with the model group. These results indicated that the effects of simiaosan were mediated through NALP3 inhibition. Therefore, the herbal medicine simiaosan was revealed to possess an ability to alleviate the symptoms of GA by regulating the NALP3/IL­1ß signaling pathway.


Asunto(s)
Artritis Gotosa/tratamiento farmacológico , Medicamentos Herbarios Chinos/farmacología , Interleucina-1beta/genética , Proteína con Dominio Pirina 3 de la Familia NLR/genética , Animales , Artritis Gotosa/genética , Artritis Gotosa/patología , Modelos Animales de Enfermedad , Medicamentos Herbarios Chinos/química , Regulación de la Expresión Génica/efectos de los fármacos , Humanos , Inflamasomas , Inflamación/tratamiento farmacológico , Inflamación/genética , Inflamación/patología , Fitoterapia , Ratas , Ratas Sprague-Dawley , Transducción de Señal/efectos de los fármacos
13.
J Neuroinflammation ; 17(1): 105, 2020 Apr 06.
Artículo en Inglés | MEDLINE | ID: mdl-32252767

RESUMEN

BACKGROUND: Senescent astrocytes have been implicated in the aging brain and neurodegenerative disorders, including Parkinson's disease (PD). Astragaloside IV (AS-IV) is an antioxidant derivative from a traditional Chinese herbal medicine Astragalus membraneaceus Bunge and exerts anti-inflammatory and longevity effects and neuroprotective activities. However, its effect on astrocyte senescence in PD remains to be defined. METHODS: Long culture-induced replicative senescence model and lipopolysaccharide/1-methyl-4-phenylpyridinium (LPS/MPP+)-induced premature senescence model and a mouse model of PD were used to investigate the effect of AS-IV on astrocyte senescence in vivo and in vitro. Immunocytochemistry, qPCR, subcellular fractionation, flow cytometric analyses, and immunohistochemistry were subsequently conducted to determine the effects of AS-IV on senescence markers. RESULTS: We found that AS-IV inhibited the astrocyte replicative senescence and LPS/MPP+-induced premature senescence, evidenced by decreased senescence-associated ß-galactosidase activity and expression of senescence marker p16, and increased nuclear level of lamin B1, and reduced pro-inflammatory senescence-associated secretory phenotype. More importantly, we showed that AS-IV protected against the loss of dopamine neurons and behavioral deficits in the mouse model of PD, which companied by reduced accumulation of senescent astrocytes in substantia nigra compacta. Mechanistically, AS-IV promoted mitophagy, which reduced damaged mitochondria accumulation and mitochondrial reactive oxygen species generation and then contributed to the suppression of astrocyte senescence. The inhibition of autophagy abolished the suppressive effects of AS-IV on astrocyte senescence. CONCLUSIONS: Our findings reveal that AS-IV prevents dopaminergic neurodegeneration in PD via inhibition of astrocyte senescence through promoting mitophagy and suggest that AS-IV is a promising therapeutic strategy for the treatment of age-associated neurodegenerative diseases such as PD.


Asunto(s)
Astrocitos/efectos de los fármacos , Senescencia Celular/efectos de los fármacos , Neuronas Dopaminérgicas/efectos de los fármacos , Trastornos Parkinsonianos/patología , Saponinas/farmacología , Triterpenos/farmacología , Animales , Astrocitos/patología , Neuronas Dopaminérgicas/patología , Masculino , Ratones , Degeneración Nerviosa/patología , Fármacos Neuroprotectores/farmacología
14.
Diabetes Obes Metab ; 22(7): 1197-1206, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-32166884

RESUMEN

AIM: To compare the cardiovascular risks between users and non-users of sodium-glucose co-transporter-2 (SGLT2) inhibitors based on electronic medical record data from a large integrated healthcare system in South Louisiana. MATERIALS AND METHODS: Demographic, anthropometric, laboratory and medication prescription information for patients with type 2 diabetes who were new users of SGLT2 inhibitors, either as initial treatments or as add-on treatments, were obtained from electronic health records. Mediation analysis was performed to evaluate the association of use of SGLT2 inhibitors and changes of metabolic risk factors with the risk of incident ischaemic heart disease. RESULTS: A total of 5338 new users of SGLT2 inhibitors were matched with 13 821 non-users. During a mean follow-up of 3.26 years, 2302 incident cases of ischaemic heart disease were defined. After adjusting for multiple confounding factors, patients using SGLT2 inhibitors had a lower risk of incident ischaemic heart disease compared to patients not using SGLT2 inhibitors (hazard ratio [HR] 0.63, 95% confidence interval [CI] 0.54-0.73). Patients using SGLT2 inhibitors also had a lower risk of incident ischaemic heart disease within 6 months (HR 0.36, 95% CI 0.25-0.44), 12 months (HR 0.40, 95% CI 0.32-0.49), 24 months (HR 0.53, 95% CI 0.43-0.60) and 36 months (HR 0.65, 95% CI 0.54-0.73), respectively. Reductions in systolic blood pressure partly mediated lowering risk of ischaemic heart disease among patients using SGLT2 inhibitors. CONCLUSIONS: The real-world data in the present study show the contribution of SGLT2 inhibitors to reducing risk of ischaemic heart disease, and their benefits beyond glucose-lowering.


Asunto(s)
Diabetes Mellitus Tipo 2 , Inhibidores de la Dipeptidil-Peptidasa IV , Isquemia Miocárdica , Inhibidores del Cotransportador de Sodio-Glucosa 2 , Simportadores , Diabetes Mellitus Tipo 2/complicaciones , Diabetes Mellitus Tipo 2/tratamiento farmacológico , Diabetes Mellitus Tipo 2/epidemiología , Glucosa , Humanos , Louisiana , Isquemia Miocárdica/epidemiología , Isquemia Miocárdica/prevención & control , Sodio , Inhibidores del Cotransportador de Sodio-Glucosa 2/uso terapéutico
15.
Nat Commun ; 11(1): 941, 2020 02 18.
Artículo en Inglés | MEDLINE | ID: mdl-32071304

RESUMEN

Oxidative stress is a major pathogenic mechanism in Parkinson's disease (PD). As an important cellular antioxidant, glutathione (GSH) balances the production and incorporation of free radicals to protect neurons from oxidative damage. GSH level is decreased in the brains of PD patients. Hence, clarifying the molecular mechanism of GSH deficiency may help deepen our knowledge of PD pathogenesis. Here we report that the astrocytic dopamine D2 receptor (DRD2) regulates GSH synthesis via PKM2-mediated Nrf2 transactivation. In addition we find that pyridoxine can dimerize PKM2 to promote GSH biosynthesis. Further experiments show that pyridoxine supplementation increases the resistance of nigral dopaminergic neurons to 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced neurotoxicity in wild-type mice as well as in astrocytic Drd2 conditional knockout mice. We conclude that dimerizing PKM2 may be a potential target for PD treatment.


Asunto(s)
Glutatión/biosíntesis , Intoxicación por MPTP/patología , Factor 2 Relacionado con NF-E2/genética , Fármacos Neuroprotectores/administración & dosificación , Piruvato Quinasa/metabolismo , Receptores de Dopamina D2/metabolismo , Animales , Astrocitos , Técnicas de Observación Conductual , Conducta Animal/efectos de los fármacos , Células Cultivadas , Dopamina/metabolismo , Neuronas Dopaminérgicas , Intoxicación por MPTP/diagnóstico , Intoxicación por MPTP/tratamiento farmacológico , Ratones Noqueados , Factor 2 Relacionado con NF-E2/metabolismo , Estrés Oxidativo/efectos de los fármacos , Cultivo Primario de Células , Multimerización de Proteína/efectos de los fármacos , Piridoxina/administración & dosificación , Especies Reactivas de Oxígeno/metabolismo , Receptores de Dopamina D2/genética , Sustancia Negra/citología , Sustancia Negra/efectos de los fármacos , Sustancia Negra/patología , Activación Transcripcional
16.
Am J Chin Med ; 46(5): 1111-1127, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29976082

RESUMEN

To investigate the therapeutic effect of glycyrrhizin arginine salt on rat cholestatic cirrhosis, we subjected male Sprague Dawley rats to common bile duct ligation for 14 days and treated them with distilled water (model group), arginine, or a low or high dose of glycyrrhizin arginine salt by gavage. A sham-operated group was used as a control group. Treatment with glycyrrhizin arginine salt substantially improved animal growth rates, reduced the ratio of liver weight to body weight and decreased total bilirubin, aspartate aminotransferase, 8-isoprostane and malondialdehyde compared with the values measured in the model group. The progress of liver fibrosis, as detected by hematoxylin and eosin and Masson's trichrome staining, was slower in the glycyrrhizin arginine salt groups than in the model group or the arginine group. Reductions of bile salt pool size, hepatic hydroxyproline content and fibrosis score were also seen in the glycyrrhizin arginine salt groups compared with the model group. Furthermore, glycyrrhizin arginine salt significantly reduced the expression of transforming growth factor [Formula: see text]1 (TGF-[Formula: see text]1), [Formula: see text]-smooth muscle actin, tumor necrosis factor-[Formula: see text] and matrix metalloproteinases 2 and 9. Glycyrrhizin arginine salt also inhibited the expression of [Formula: see text]-SMA and matrix metalloproteinases 2 and 9 in response to TGF-[Formula: see text]1 in LX-2 cells and primary rat hepatic stellate cells and mitigated the cytotoxicity induced by rat bile in HepG2 cells and primary rat hepatocytes.


Asunto(s)
Arginina/administración & dosificación , Colestasis/tratamiento farmacológico , Medicamentos Herbarios Chinos/administración & dosificación , Ácido Glicirrínico/administración & dosificación , Cirrosis Hepática/tratamiento farmacológico , Animales , Aspartato Aminotransferasas/metabolismo , Bilirrubina/metabolismo , Colestasis/genética , Colestasis/metabolismo , Dinoprost/análogos & derivados , Dinoprost/metabolismo , Células Estrelladas Hepáticas/efectos de los fármacos , Células Estrelladas Hepáticas/metabolismo , Humanos , Hígado/efectos de los fármacos , Hígado/metabolismo , Cirrosis Hepática/genética , Cirrosis Hepática/metabolismo , Masculino , Malondialdehído/metabolismo , Ratas , Ratas Sprague-Dawley , Factor de Crecimiento Transformador beta1/metabolismo
17.
Zhen Ci Yan Jiu ; 43(2): 92-7, 2018 Feb 25.
Artículo en Chino | MEDLINE | ID: mdl-29516696

RESUMEN

OBJECTIVE: To observe the effect of herbal cake-separated moxibustion on blood lipid-apoprotein levels and the expression of Toll-like receptor 2 (TLR 2), TLR 4 and nuclear factor kappa B(NF-κB) mRNAs in atherosclerotic (AS) vulnerable plaques of hyperglycemia rabbits, so as to explore its mechanism underlying improvement of atherosclerosis. METHODS: Sixty New Zealand rabbits were randomly divided into 5 groups: control, model, direct moxibustion, herbal-cake-separated moxibustion and medication groups(n=12 rabbits in each group). The AS vulnerable plaque model was established by high-fat forage feeding plus balloon-induced abdominal aorta injury and gene transfection of Ad 5-p 53 recombinant vector. Direct moxibustion or herbal-cake-separated moxibustion was applied to "Juque" (CV 14) and bilateral "Tianshu" (ST 25), "Fenglong" (ST 40), or bilateral "Xinshu" (BL 15), "Pishu" (BL 20) and "Ganshu" (BL 18) for 15-20 min every time. The medication group was treated by feeding Atorvastatin. All the treatments were conducted once daily for 8 weeks. Plasma total cholesterol(TC) and triglyceri-de(TG) contents were detected by enzyme method, high-density lipoprotein (HDL) and low-density lipoprotein (LDL) contents detected by colorimetric determination, and plasma apolipoprotein A(Apo-A) and apolipoprotein B(Apo-B) levels determined by electrophoretic method. The pathological changes of vulnerable plaque and the aortic intima and media thickness were observed under light microscope after H.E. staining. The expression levels of TLR 2, TLR 4 and NF-κB mRNAs in AS plaques were determined by quantitative real-time PCR. RESULTS: After modeling, the levels of plasma TC, TG, LDL and Apo-B in the model group were remarkably increased (P<0.01), and Apo-A and HDL/LDL were significantly decreased in comparison with the control group (P<0.01). Additionally, the aortic intima and media thickness and the expression levels of TLR 2, TLR 4 and NF-κB mRNAs in AS plaques were significantly increased (P<0.01). After the treatment, the elevated levels of plasma TC, TG, LDL and Apo-B, the aortic intima thickness and media thickness, and the expression levels of TLR 2, TLR 4 and NF-κB mRNAs in the 3 treatment groups were significantly down-regulated in comparison with the model group (P<0.05, P<0.01), while the decreased levels of Apo-A and HDL/LDL were considerably increased (P<0.01). Comparison among the 3 treatment groups showed that the therapeutic effects of the herbal-cake-separated moxibustion and medication were significantly superior to those of the direct moxibustion in down-regulating the levels of TC, TG, LDL, Apo-B, TLR 2 mRNA, TLR 4 mRNA and NF-κB mRNA, and reducing the thickness of the aortic intima and media, as well as in up-regulating the levels of Apo-A and HDL/LDL (P<0.05, P<0.01). No significant differences were found between the herbal-cake-separated moxibustion and medication groups in the above-mentioned indexes (P>0.05). CONCLUSION: Herbal-cake-separated moxibustion has a positive role in stabilizing AS vulnerable plaque in hyperglycemia rabbits, which may be associated with its effects in regulating blood lipid-apolipoprotein levels and inhibiting the expression of TLR 2, TLR 4 and NF-κB mRNAs in vulnerable plaques.


Asunto(s)
Hiperglucemia , Moxibustión , Placa Aterosclerótica , Animales , Lípidos , Conejos , Receptores Toll-Like
18.
Prim Care Diabetes ; 12(3): 231-237, 2018 06.
Artículo en Inglés | MEDLINE | ID: mdl-29396207

RESUMEN

AIMS: To assess whether an integrated hospital-community diabetes management program could improve major cardiovascular risk factor control among patients with diabetes in real-world clinical settings. METHODS: 985 adults with diabetes in the Shanghai Taopu community health service center were enrolled at baseline and 907 subjects completed the follow-up. The follow-up levels of the metabolic profiles were assessed by their averages during the follow up period. RESULTS: After a mean 7-year follow-up period, heamoglobin A1c, systolic and diastolic blood pressure levels decreased by 0.6%, 5.7mmHg, and 1.5mmHg, respectively (all P<0.001). There was a non-significant difference in low-density lipoprotein cholesterol, while high-density lipoprotein cholesterol increased 1.9mg/dL and triglycerides decreased 28.3mg/dL, respectively (all P<0.001). The percentage of patients with diabetes who met any one of three Chinese Diabetes Society goals (heamoglobin A1c <7.0%, blood pressure <140/80mmHg, and low-density lipoprotein cholesterol <100mg/dL) increased from 58.2% to 70.1%. The chronic diabetes complication screening rates (diabetic retinopathy, diabetic neuropathy, diabetic nephropathy) have significantly increased, from almost zero to 12-78%. CONCLUSIONS: This long-term program has increased the proportions of attaining major cardiovascular risk factors control goals and diabetic chronic complication screening rates among patients with diabetes.


Asunto(s)
Servicios de Salud Comunitaria/organización & administración , Prestación Integrada de Atención de Salud/organización & administración , Diabetes Mellitus Tipo 2/terapia , Hospitales/estadística & datos numéricos , Hipoglucemiantes/uso terapéutico , Mejoramiento de la Calidad , Adulto , Anciano , China , Diabetes Mellitus Tipo 2/sangre , Diabetes Mellitus Tipo 2/diagnóstico , Manejo de la Enfermedad , Femenino , Humanos , Relaciones Interinstitucionales , Masculino , Persona de Mediana Edad , Proyectos Piloto , Evaluación de Programas y Proyectos de Salud , Factores de Tiempo
19.
Eur J Nutr ; 57(7): 2457-2467, 2018 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-28808770

RESUMEN

PURPOSE: Serum calcium and phosphorus abnormalities are associated with cardiovascular disorders in general population, but evidence among patients with established coronary heart disease (CHD) is limited and controversial. This study aimed to investigate the associations of baseline serum calcium and phosphorus levels with long-term mortality risk among patients with CHD. METHODS: We conducted a prospective cohort study among 3187 patients with CHD from October 2008 and December 2011 in China. Cox proportional hazards model was used to assess the associations of serum calcium and phosphorus at baseline with the risk of death. RESULTS: During follow-up (mean, 4.9 years), 295 patients died, 193 of which resulted from cardiovascular causes. Multivariable-adjusted hazard ratios (HR) for each 1 mmol/L increase in serum calcium at baseline were 0.27 (95% confidence interval (CI) 0.14-0.51) for all-cause mortality and 0.26 (95% CI 0.12-0.54) for cardiovascular mortality. Patients in the highest compared to the lowest quartile of serum calcium were at lower risk of all-cause mortality (HR, 95% CI 0.57, 0.40-0.82) and cardiovascular mortality (0.50, 0.32-0.79) (both P trend < 0.001). This inverse association between serum calcium and the risk of mortality did not change when participants were stratified by sex, age groups, level of overweight, types of CHD, and history of diabetes. We also observed a graded positive association between baseline serum phosphorus and the risks of mortality. CONCLUSIONS: The present study is the first to report that lower serum calcium at baseline is associated with an increased risk of all-cause and cardiovascular mortality in a Chinese coronary heart disease cohort. Further studies are required to investigate the causal relationship and actual mechanisms.


Asunto(s)
Calcio/sangre , Enfermedad Coronaria/sangre , Enfermedad Coronaria/mortalidad , Fósforo/sangre , Enfermedades Cardiovasculares , China , Humanos , Modelos de Riesgos Proporcionales , Estudios Prospectivos , Factores de Riesgo
20.
Int J Neuropsychopharmacol ; 20(11): 886-895, 2017 11 01.
Artículo en Inglés | MEDLINE | ID: mdl-29016795

RESUMEN

Background: Leonurine is an active alkaloid that is extracted from Traditional Chinese Medicine Herba leonuri. Emerging evidence indicates that leonurine produces neuroprotective effects in ischemic stroke, Parkinson's disease, and Alzheimer's disease. However, the effect of leonurine in neuropsychiatric disorders, especially in major depression, remains unknown. Methods: We used the chronic mild stress mouse model to explore the antidepressant effects of leonurine and the potential mechanisms. Behavioral tests including sucrose preference test, forced swimming test, and tail suspension test were taken to evaluate depression symptoms. Moreover, the contents of monoamine neurotransmitters in hippocampus and prefrontal cortex were measured by high-performance liquid chromatography. Neuronal morphology was detected by transmission electron microscopy. Results: Administration of leonurine (60 mg/kg) for 4 weeks significantly alleviated depression-like behaviors of chronic mild stress mice, including increased sucrose preference and reduced immobility time in forced swimming test and tail suspension test. We further found that leonurine (60 mg/kg) effectively restored the levels of 5-hydroxytryptamine, noradrenaline, and dopamine in the hippocampus and prefrontal cortex of chronic mild stress mice, accompanied by amelioration of hippocampal neuronal damage. Furthermore, leonurine (60 mg/kg) significantly inhibited the production of proinflammatory cytokine interleukin-1ß, interleukin-6 and TNF-α, and suppressed the nuclear factor kappa B signaling pathway. Conclusions: These findings demonstrate that leonurine exerts antidepressant-like effects, which may be mediated, at least in part, by improving monoamine neurotransmitters and inhibiting neuroinflammation. Our study provides insight into the potential of leonurine in depression therapy.


Asunto(s)
Antidepresivos/uso terapéutico , Depresión/tratamiento farmacológico , Depresión/etiología , Encefalitis/tratamiento farmacológico , Ácido Gálico/análogos & derivados , Estrés Psicológico/complicaciones , Animales , Proteínas de Unión al Calcio/metabolismo , Citocinas/genética , Modelos Animales de Enfermedad , Relación Dosis-Respuesta a Droga , Encefalitis/etiología , Fluoxetina/uso terapéutico , Preferencias Alimentarias/efectos de los fármacos , Ácido Gálico/uso terapéutico , Masculino , Ratones , Ratones Endogámicos C57BL , Proteínas de Microfilamentos/metabolismo , Microglía/efectos de los fármacos , Microglía/metabolismo , Neuronas/efectos de los fármacos , Neuronas/patología , Neuronas/ultraestructura , Neurotransmisores/metabolismo , Corteza Prefrontal/efectos de los fármacos , Corteza Prefrontal/metabolismo , Corteza Prefrontal/patología , Corteza Prefrontal/ultraestructura , Estrés Psicológico/patología , Natación/psicología
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