scholarly journals The correlation between serum resistin and toll-like receptor-4 with insulin resistance in hypertensive subjects with or without type 2 diabetes mellitus

2021 ◽  
Vol 2 (04) ◽  
pp. 203-217
Author(s):  
Mustafa Al-Taie ◽  
Rayah Baban ◽  
Mouayed Hamed

Background: The most chronic disease prevalence in the Iraqi population are type-2 diabetes mellitus (T2DM) and hypertension (HT). One of the important causes of these chronic diseases is obesity. Resistin (RETN) is a major link between obesity and insulin resistance (IR) or T2DM (which induces IR). The action of RETN on IR is mediated by Toll-like receptor-4 (TLR4). TLR4 is a putative RETN receptor that has been suggested to participate in RETN-inducing inflammation and IR. Objectives: To study the association between serum RETN/TLR4 and IR in hypertensive patients with or without T2DM subjects. Methods: This cross-sectional study was conducted on 120 men that classified into four different groups. These groups consist of the following: 30 apparently control group, 30 patients with hypertension, 30 patients with T2DM but without HT and 30 hypertensive patients with T2DM. For all the subjects, serum RETN, TLR4 and serum insulin was estimated by using the ELISA technique. Results: Our results showed that mean levels of the serum RETN and TLR4 were significantly elevated in all patient groups when compared with the control group. Also, a positive correlation between serum RETN and TLR4 was found in hypertensive patients with T2DM patients. Conclusions: Serum RETN and TLR4 were higher in all patient groups when compared with the control group. In addition, a positive correlation between RETN and IR in all study groups was noted. Then, we suggested a close association between RETN and TLR4 and their positive correlations with IR.

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Yuze Li ◽  
Dianzhong Li ◽  
Jinfeng Zhang ◽  
Shurui Liu ◽  
Haijun Chen ◽  
...  

The purpose of this study is to explore why type 2 diabetes mellitus (T2DM) patients are susceptible to pulmonary tuberculosis through detection of serum Toll-like receptor 4 (TLR4), an important immune-related receptor, especially in terms of content and TLR4gene polymorphism. Patients with T2DM complicated by pulmonary tuberculosis (T2DMTB) were selected as the case group and T2DM patients without tuberculosis were selected as the control group. Forty patients in each group were randomly selected and their serum TLR4levels were detected and compared. Determination of six sites of TLR4gene polymorphism was carried out in 238 T2DMTB patients and 310 patients with T2DM, and results showed that the serum TLR4content of the T2DMTB group was significantly lower than that of the T2DM group (p<0.05). The six sites of TLR4gene polymorphism did not show significant associations with T2DMTB risk. No statistically significant differences in genotype distributions were observed between T2DMTB patients and patients with T2DM when studied using the recessive and dominant genetic models. How two diseases with contradictory nutritional statuses can occur in the same person is difficult to explain from environmental factors perspective alone. Future research should study the causes of T2DMTB from the perspective of genetics.


Inflammation ◽  
2012 ◽  
Vol 36 (1) ◽  
pp. 251-257 ◽  
Author(s):  
Zhao-Shun Jiang ◽  
Su-Xia Wang ◽  
Hong-Xia Jia ◽  
Jing Wang ◽  
Yuan-Tao Liu

2017 ◽  
Vol 14 (2) ◽  
pp. 116-121 ◽  
Author(s):  
Wen-Jia Chen ◽  
Yue Liu ◽  
Yu-Bin Sui ◽  
Bo Zhang ◽  
Xiao-Hui Zhang ◽  
...  

Background: Musclin is a newly identified skeletal muscle–derived secretory factor, which has been recently characterized as a stimulator that induces insulin resistance in mice. However, the pathophysiological role of musclin in humans remains poorly understood. The aim of this study was to explore the potential correlations between musclin plasma levels and various metabolic parameters in patients with type 2 diabetes mellitus. Materials and methods: In this hospital-based study, plasma samples were collected from the enrolled individuals, including 38 newly diagnosed, treatment-naive type 2 diabetes mellitus patients and 41 age- and gender-matched control subjects. Plasma musclin levels were examined by radioimmunoassay. Results: Compared with the control group, musclin plasma levels were significantly higher in untreated type 2 diabetes mellitus patients. Musclin levels in the plasma of newly diagnosed type 2 diabetes mellitus patients were positively correlated with fasting plasma glucose, haemoglobin A1c, serum insulin, triglycerides and homeostasis model assessment of insulin resistance. Furthermore, multivariate logistic regression analysis showed that the level of musclin was associated with the presence of type 2 diabetes mellitus. Receiver operating characteristic curve analysis yielded an area under the curve for musclin of 0.718 in type 2 diabetes mellitus. Conclusion: The circulating concentration of musclin was significantly increased in type 2 diabetes mellitus patients. Our results suggest that musclin has a strong relationship with insulin resistance in type 2 diabetes mellitus.


2018 ◽  
Vol 09 (07) ◽  
Author(s):  
Taís Silveira Assmann ◽  
Natalia Emerim Lemos ◽  
Letícia de Almeida Brondani ◽  
Rodrigo Carlessi ◽  
Carmen Maldonado Bernal ◽  
...  

2018 ◽  
Vol 64 (13) ◽  
pp. 15 ◽  
Author(s):  
Inass Mohamed Taha ◽  
Azza M Abdu Allah ◽  
Eman Masoud Abd El Gayed

Author(s):  
DHARMA LINDARTO ◽  
YETTY MACHRINA ◽  
SANTI SYAFRIL ◽  
AWALUDDIN SARAGIH

Objective: This study aimed to determine whether the antidiabetic effects of puguntano (Curanga fel-terrae [Lour.]) extract involve anti-inflammatory effects mediated through adiponectin receptors (AdipoRs). Methods: Type 2 diabetes mellitus (T2DM) Wistar rats were induced by a combination of high-fat diet for 5 weeks and injection small dose streptozotocin 30 mg/kg bw/rat. This study was conducted in 48 T2DM rats, which were randomly assigned into two weight-matched groups (n=24, each). Only the treatment group received 0.2 mg/g bw of puguntano extract suspension through oral for 10 days. The clinical characteristics of T2DM and AdipoR were assessed before and after the treatment period. Results: The treatment group demonstrated significantly lower body weight, fasting blood glucose, and homeostasis model assessment-insulin resistance (HOMA-IR) but higher AdipoR than the control group (all, p<0.001). Furthermore, there were also negative correlations between AdipoR to body weight and HOMA-IR (all, p<0.05). Conclusion: Our data suggest that puguntano could improve glucose metabolism and ameliorate insulin resistance and have anti-inflammatory effects mediated through AdipoR in T2DM.


2021 ◽  
Vol 12 ◽  
Author(s):  
Yu Bai ◽  
Ke Mo ◽  
Guirong Wang ◽  
Wanling Chen ◽  
Wei Zhang ◽  
...  

As a severe metabolic disease, type 2 diabetes mellitus (T2DM) has become a serious threat to human health in recent years. Gastrodin, as a primary chemical constituent in Gastrodia elata Blume, has antidiabetic effects. However, the possible mechanisms are unclear. The aim of the present study was to investigate the effects and possible mechanisms of gastrodin on the treatment of T2DM. In vivo, after treatment with gastrodin for 6 weeks, fasting blood glucose levels, blood lipid metabolism, and insulin sensitivity index values were remarkably reduced compared with those of the diabetic control group. The values of aspartate aminotransferase and alanine aminotransferase also showed that gastrodin alleviates liver toxicity caused by diabetes. Moreover, gastrodin relieved pathological damage to the pancreas in T2DM rats. In vitro, gastrodin alleviated insulin resistance by increasing glucose consumption, glucose uptake, and glycogen content in dexamethasone-induced HepG2 cells. The Western blotting results showed that gastrodin upregulated the expression of insulin receptors and ubiquitin-specific protease 4 (USP4) and increased the phosphorylation of GATA binding protein 1 (GATA1) and protein kinase B (AKT) in vivo and in vitro. Furthermore, gastrodin decreased the ubiquitin level of the insulin receptor via UPS4 and increased the binding of GATA1 to the USP4 promoter. Additionally, administration of the phosphatidylinositol 3-kinase (PI3K)/AKT signaling pathway inhibitors MK-2206 and LY294002 abolished the beneficial effects of gastrodin. Our results indicate that gastrodin promotes the phosphorylation of GATA1 via the PI3K/AKT pathway, enhances the transcriptional activity of GATA1, and then increases the expression level of USP4, thereby reducing the ubiquitination and degradation of insulin receptors and ultimately improving insulin resistance. Our study provides scientific evidence for the beneficial actions and underlying mechanism of gastrodin in the treatment of T2DM.


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