1.Biotransformation differences of ginsenoside compound K mediated by the gut microbiota from diabetic patients and healthy subjects.
Sutianzi HUANG ; Li SHAO ; Manyun CHEN ; Lin WANG ; Jing LIU ; Wei ZHANG ; Weihua HUANG
Chinese Journal of Natural Medicines (English Ed.) 2023;21(10):723-729
Many natural products can be bio-converted by the gut microbiota to influence pertinent efficiency. Ginsenoside compound K (GCK) is a potential anti-type 2 diabetes (T2D) saponin, which is mainly bio-transformed into protopanaxadiol (PPD) by the gut microbiota. Studies have shown that the gut microbiota between diabetic patients and healthy subjects are significantly different. Herein, we aimed to characterize the biotransformation of GCK mediated by the gut microbiota from diabetic patients and healthy subjects. Based on 16S rRNA gene sequencing, the results indicated the bacterial profiles were considerably different between the two groups, especially Alistipes and Parabacteroides that increased in healthy subjects. The quantitative analysis of GCK and PPD showed that gut microbiota from the diabetic patients metabolized GCK slower than healthy subjects through liquid chromatography tandem mass spectrometry (LC-MS/MS). The selected strain A. finegoldii and P. merdae exhibited a different metabolic capability of GCK. In conclusion, the different biotransformation capacity for GCK may impact its anti-diabetic potency.
Humans
;
Gastrointestinal Microbiome/genetics*
;
Chromatography, Liquid/methods*
;
Healthy Volunteers
;
RNA, Ribosomal, 16S
;
Feces/microbiology*
;
Tandem Mass Spectrometry
;
Biotransformation
;
Diabetes Mellitus, Type 2/drug therapy*
2.Integrated care teams in primary care improve clinical outcomes and care processes in patients with non-communicable diseases.
Pei Lin HU ; Cynthia Yan-Ling TAN ; Ngoc Hoang Long NGUYEN ; Rebekah Ryanne WU ; Juliana BAHADIN ; Nivedita Vikas NADKARNI ; Ngiap Chuan TAN
Singapore medical journal 2023;64(7):423-429
INTRODUCTION:
Primary care physicians face the increasing burden of managing multimorbidities in an ageing population. Implementing an integrated care team (ICT) with defined roles and accountability to share consultation tasks is an emerging care model to address this issue. This study compared outcomes with ICT versus usual care for patients with multimorbidities in primary care.
METHODS:
Data was retrospectively extracted from the electronic medical records (EMRs) of consecutive adult Asian patients empanelled to ICT and those in UC at a typical primary care clinic (polyclinic) in eastern Singapore in 2018. The study population had hypertension, and/or hyperlipidaemia and/or type 2 diabetes mellitus (T2DM). Clinical outcomes included the proportion of patients (ICT vs. UC) who attained their treatment goals after 12 months. Process outcomes included the proportion of patients who completed annual diabetic eye and foot screenings, where applicable.
RESULTS:
Data from 3,302 EMRs (ICT = 1,723, UC = 1,579) from January 2016 to September 2017 was analysed. The ICT cohort was more likely to achieve treatment goals for systolic blood pressure (SBP) (adjusted odds ratio [AOR] = 1.52, 95% confidence interval [CI] = 1.38-1.68), low-density lipoprotein cholesterol (AOR = 1.72, 95% CI = 1.49-1.99), and glycated haemoglobin (AOR = 1.28, 95% CI = 1.09-1.51). The ICT group had higher uptake of diabetic retinal screening (89.1% vs. 83.0%, P < 0.001) and foot screening (85.2% vs. 77.9%, P < 0.001).
CONCLUSION
The ICT model yielded better clinical and process outcomes than UC, with more patients attaining treatment goals.
Adult
;
Humans
;
Diabetes Mellitus, Type 2/drug therapy*
;
Retrospective Studies
;
Noncommunicable Diseases/therapy*
;
Delivery of Health Care, Integrated
;
Primary Health Care
3.Network Meta-analysis of oral Chinese patent medicines in treating type 2 diabetes mellitus complicated with angina pectoris of coronary heart disease.
Xu-Ming ZHANG ; Xiao-Xiao ZHAO ; Yi LIU ; Yan-Ming XIE
China Journal of Chinese Materia Medica 2023;48(18):5078-5090
Bayesian network Meta-analysis was employed to compare the efficacy of different oral Chinese patent medicines in treating type 2 diabetes mellitus with angina pectoris of coronary heart disease. Randomized controlled trial(RCT) of oral Chinese patent medicines in treating type 2 diabetes mellitus complicated with angina pectoris of coronary heart disease were retrieved from 8 Chinese and English databases including CNKI, Wanfang, VIP, SinoMed, EMbase, PubMed, Cochrane Library, and Web of Science with the time interval from inception to November 2022. The BUGSnet package in R 4.2.1 was used to conduct Meta-analysis. A total of 45 RCTs were included, involving 4 727 patients and 7 oral Chinese patent medicines. Network Meta-analysis showed that the conventio-nal western medicine combined with Chinese patent medicines improved the outcome indicators. Shexiang Baoxin Pills + conventional western medicine had the best effect on reducing the incidence of adverse cardiovascular events, and Yixinshu Capsules + conventional western medicine on reducing the frequency and duration of angina pectoris. The conventional western medicine combined with oral Chinese patent medicines can reduce blood glucose indicators. Yindan Xinnaotong Soft Capsules + conventional western medicine had the best effect on reducing fasting blood glucose(FBG), 2 hours postprandial blood glucose(PBG), and glycosylated hemoglobin(HbA1c). The conventional western medicine combined with oral Chinese patent medicines can reduce blood lipid indicators. Yixinshu Capsules + conventional western medicine had the best effect on reducing total cholesterol(TC) and low density lipoprotein-cholesterol(LDL-C), and Yindan Xinnaotong Soft Capsules + conventional western medicine on reducing triglyceride(TG). Current evidence suggests that the patients with type 2 diabetes mellitus complicated with angina pectoris of coronary heart disease could reasonably choose oral Chinese patent medicines on the basis of routine antiplatelet, anticoagulant, hypoglycemic, and antihypertensive therapies, which could reduce the incidence of adverse cardiovascular events, alleviate the symptoms of angina pectoris, and reduce the glucose and lipid metabolism indicators. Shexiang Baoxin Pills + conventional treatment and Yixinshu Capsules + conventional western medicine have better effect on angina pectoris, Yindan Xinnaotong Soft Capsules + conventional western medicine on lowering blood glucose, and Yindan Xinnaotong Soft Capsules + conventional western medicine and Yixinshu Capsules + conventional western medicine on reducing blood lipid. Due to the lack of direct comparative results between Chinese patent medicines and other factors, high-quality studies remain to be carried out for further verification.
Humans
;
Nonprescription Drugs
;
Network Meta-Analysis
;
Diabetes Mellitus, Type 2/drug therapy*
;
Bayes Theorem
;
Blood Glucose
;
Angina Pectoris/drug therapy*
;
Coronary Disease/drug therapy*
;
Drugs, Chinese Herbal/therapeutic use*
;
Capsules
;
Lipids
;
Cholesterol
5.Metformin use and risk of ischemic stroke in patients with type 2 diabetes: A cohort study.
Huan YU ; Ruo Tong YANG ; Si Yue WANG ; Jun Hui WU ; Meng Ying WANG ; Xue ying QIN ; Tao WU ; Da Fang CHEN ; Yi Qun WU ; Yong Hua HU
Journal of Peking University(Health Sciences) 2023;55(3):456-464
OBJECTIVE:
To explore the association between the use of metformin and the risk of ischemic stroke in patients with type 2 diabetes.
METHODS:
A prospective cohort study was designed from the Fangshan family cohort in Beijing. According to metformin use at baseline, 2 625 patients with type 2 diabetes in Fangshan, Beijing were divided into metformin group or non-metformin group and the incidence of ischemic stroke between the different groups during follow-up was estimated and compared by Cox proportional hazard regression model. The participants with metformin were first compared with all the parti-cipants who did not use metformin, and then were further compared with those who did not use hypoglycemic agents and those who used other hypoglycemic agents.
RESULTS:
The patients with type 2 diabetes were with an average age of (59.5±8.7) years, and 41.9% of them were male. The median follow-up time was 4.5 years. A total of 84 patients developed ischemic stroke during follow-up, with a crude incidence of 6.4 (95%CI: 5.0-7.7) per 1 000 person-years. Among all the participants, 1 149 (43.8%) took metformin, 1 476 (56.2%) were metformin non-users, including 593 (22.6%) used other hypoglycemic agents, and 883 (33.6%) did not use any hypoglycemic agents. Compared with metformin non-users, the Hazard ratio (HR) for ischemic stroke in metformin users was 0.58 (95%CI: 0.36-0.93; P = 0.024). Compared with other hypoglycemic agents, HR was 0.48 (95%CI: 0.28-0.84; P < 0.01); Compared with the group without hypoglycemic agents, HR was 0.65 (95%CI: 0.37-1.13; P=0.13). The association between metformin and ischemic stroke was statistically significant in the patients ≥ 60 years old compared with all the metformin non-users and those who used other hypoglycemic agents (HR: 0.48, 95%CI: 0.25-0.92; P < 0.05). Metformin use was associated with a lower incidence of ischemic stroke in the patients with good glycemic control (0.32, 95%CI: 0.13-0.77; P < 0.05). In the patients with poor glycemic control, and the association was not statistically significant (HR: 0.97, 95%CI: 0.53-1.79; P>0.05). There was an interaction between glycemic control and metformin use on incidence of ischemic stroke (Pinteraction < 0.05). The results of the sensitivity analysis were consistent with the results in the main analysis.
CONCLUSION
Among patients with type 2 diabetic in rural areas of northern China, metformin use was associated with lower incidence of ischemic stroke, especially in patients older than 60 years. There was an interaction between glycemic control and metformin use in the incidence of ischemic stroke.
Humans
;
Male
;
Middle Aged
;
Aged
;
Female
;
Metformin/adverse effects*
;
Diabetes Mellitus, Type 2/drug therapy*
;
Cohort Studies
;
Ischemic Stroke/complications*
;
Prospective Studies
;
Hypoglycemic Agents/adverse effects*
;
Stroke/prevention & control*
;
Retrospective Studies
8.Mechanism of heat-clearing prescriptions in alleviating type 2 diabetes mellitus:a review.
Yan WANG ; Jian-Qing LIANG ; Xiang-Dong ZHU ; Peng-Peng GAO ; Xi CEN ; Yong-Lin LIANG ; Jie LI ; Ying-Yun WANG ; Xiao-Li SI
China Journal of Chinese Materia Medica 2023;48(7):1711-1723
Type 2 diabetes mellitus(T2DM), a common chronic metabolic disease, is often accompanied by internal heat syndrome. Heat-clearing prescriptions are widely used to treat different heat syndromes of T2DM from the aspects of clearing stagnant heat, excess heat, damp heat, phlegm heat, and heat toxin, demonstrating remarkable effects. The mechanism of blood sugar-lowering agents has always been a hotspot of research. Recently, the basic studies of heat-clearing prescriptions from different perspectives have been increasing year by year. To clarify the mechanisms of heat-clearing prescriptions and find specific mechanisms, we systematically reviewed the basic studies of heat-clearing prescriptions commonly used for the treatment of T2DM in the past decade, intending to provide a reference for related research.
Humans
;
Diabetes Mellitus, Type 2/drug therapy*
;
Drugs, Chinese Herbal/therapeutic use*
;
Hot Temperature
;
Medicine, Chinese Traditional
;
Prescriptions
;
Syndrome
9.Asiatic acid improves insulin secretion of β cells in type 2 diabetes through TNF- α/Mfn2 pathway.
Lu LI ; Wei WANG ; Qiang XU ; Mingzhu HUANG
Journal of Zhejiang University. Medical sciences 2023;52(2):185-194
OBJECTIVES:
To investigate the effects and molecular mechanisms of asiatic acid on β-cell function in type 2 diabetes mellitus (T2DM).
METHODS:
The T2DM model was established by high fat diet and streptozotocin injection in ICR mice, and the effects of asiatic acid on glucose regulation were investigated in model mice. The islets were isolated from palmitic acid-treated diabetic mice. ELISA was used to detect the glucose-stimulated insulin secretion, tumor necrosis factor (TNF)-α and interleukin (IL)-6. ATP assay was applied to measure ATP production, and Western blotting was used to detect protein expression of mature β cell marker urocortin (Ucn) 3 and mitofusin (Mfn) 2. The regulatory effects of asiatic acid on glucose-stimulated insulin secretion (GSIS) and Ucn3 expression were also investigated after siRNA interference with Mfn2 or treatment with TNF-α.
RESULTS:
Asiatic acid with the dose of 25 mg·kg-1·d-1 had the best glycemic control in T2DM mice and improved the homeostasis model assessment β index. Asiatic acid increased the expression of Mfn2 and Ucn3 protein and improved the GSIS function of diabetic β cells in vitro and in vivo (both P<0.05). Moreover, it improved the ATP production of islets of T2DM mice in vitro (P<0.05). Interfering Mfn2 with siRNA blocked the up-regulation of Ucn3 and GSIS induced by asiatic acid. Asiatic acid inhibited islet TNF-α content and increased Mfn2 and Ucn3 protein expression inhibited by TNF-α.
CONCLUSIONS
Asiatic acid improves β cell insulin secretion function in T2DM mice by maintaining the β cell maturity, which may be related to the TNF-α/Mfn2 pathway.
Mice
;
Animals
;
Insulin Secretion
;
Diabetes Mellitus, Type 2/drug therapy*
;
Islets of Langerhans/metabolism*
;
Tumor Necrosis Factor-alpha/metabolism*
;
Insulin/therapeutic use*
;
Diabetes Mellitus, Experimental
;
Mice, Inbred ICR
;
Glucose/therapeutic use*
;
Interleukin-6/metabolism*
;
RNA, Small Interfering/pharmacology*
;
Adenosine Triphosphate
;
GTP Phosphohydrolases/therapeutic use*
10.Effects of plateau hypoxia on population pharmacokinetics and pharmacodynamics of metformin in patients with Type 2 diabetes.
Yike SHEN ; Xiaohong LUO ; Ningning QIN ; Lin HU ; Lin LUO ; Zhen WANG ; Yuemei SUN ; Rong WANG ; Wenbin LI
Journal of Central South University(Medical Sciences) 2023;48(4):481-490
OBJECTIVES:
Metformin is the basic drug for treating diabetes, and the plateau hypoxic environment is an important factor affecting the pharmacokinetics of metformin, but there have been no reports of metformin pharmacokinetic parameters in patients with diabetes mellitus type 2 (T2DM) in the high-altitude hypoxic environment. This study aims to investigate the effect of the hypoxic environment on the pharmacokinetics and assess the efficacy and safety of metformin administration in patients with Type 2 diabetes mellitus (T2DM).
METHODS:
A total of 85 patients with T2DM taking metformin tablets in the plateau group (n=32, altitude: 1 500 m) and control group (n=53, altitude: 3 800 m) were enrolled according to the inclusion and exclusion criteria, and 172 blood samples were collected in the plateau group and the control Group. A ultra-performance liquid chromatography/tandem mass spectrometry (UFLC-MS/MS) method was established to determine the blood concentration of metformin, and Phoenix NLME software was used to establish a model of pharmacokinetics of metformin in the Chinese T2DM population. The efficacy and serious adverse effects of metformin were compared between the 2 groups.
RESULTS:
The population pharmacokinetic modeling results showed that plateau hypoxia and age were the main covariates for model building, and the pharmacokinetic parameters were significantly different between the plateau and control groups (all P<0.05), including distribution volume (V), clearance (CL), elimination rate constant (Ke), half-life(T1/2), area under the curve (AUC), time to reach maximum concentration (Tmax). Compared with the control group, AUC was increased by 23.5%, Tmax and T1/2 were prolonged by 35.8% and 11.7%, respectively, and CL was decreased by 31.9% in the plateau group. The pharmacodynamic results showed that the hypoglycaemic effect of T2DM patients in the plateau group was similar to that in the control group, the concentration of lactic acid was higher in the plateau group than that in the control group, and the risk of lactic acidosis was increased after taking metformin in the plateau population.
CONCLUSIONS
Metformin metabolism is slowed down in T2DM patients in the hypoxic environment of the plateau; the glucose-lowering effect of the plateau is similar, and the attainment rate is low, the possibility of having serious adverse effects of lactic acidosis is higher in T2DM patients on the plateau than on the control one. It is probably suggested that patients with T2DM on the plateau can achieve glucose lowering effect by extending the interval between medication doses and enhancing medication education to improve patient compliance.
Humans
;
Diabetes Mellitus, Type 2/drug therapy*
;
Metformin/therapeutic use*
;
Acidosis, Lactic
;
Tandem Mass Spectrometry
;
Hypoxia
;
Glucose

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