Urinary Extracellular Vesicle: A Potential Source of Early Diagnostic and Therapeutic Biomarker in Diabetic Kidney Disease / 中华医学杂志(英文版)

<p><b>Objective</b>Diabetic kidney disease (DKD) has become one of the major causes of end-stage renal disease. Urinary extracellular vesicles (uEVs) contain rich biological information which could be the ideal source for noninvasive biomarkers of DKD. This review discussed the potential early diagnostic and therapeutic values of proteins and microRNAs in uEVs in DKD.</p><p><b>Data Sources</b>This review was based articles published in PubMed, Embase, Cochrane, and Google Scholar databases up to November 20, 2017, with the following keywords: "Diabetic kidney disease", "Extracellular vesicle", and "Urine".</p><p><b>Study Selection</b>Relevant articles were carefully reviewed, with no exclusions applied to the study design and publication type.</p><p><b>Results</b>There is no "gold standard" technology to separate and/or purify uEVs. The uEVs contain a variety of proteins and RNAs and participate in the physiological and pathological processes of the kidney. UEVs, especially urinary exosomes, may be useful biomarkers for early diagnosis and treatment to DKD. Furthermore, the uEVs has been used as a therapeutic target for DKD.</p><p><b>Conclusion</b>Proteins and nucleic acids in uEVs represent promising biomarker for the diagnosis and treatment of DKD.</p>

Association between hypertriglyceridemic waist?to?height ratio phenotype and chronic kidney disease in a community population in South China: a cross-sectional study / 南方医科大学学报

<p><b>OBJECTIVE</b>To investigate the relationship between hypertriglyceridemic waist to height ratio phenotype (HWHtR) and chronic kidney disease (CKD) in a community population in South China.</p><p><b>METHODS</b>A cross sectional study was conducted among 2142 residents in Zhuhai (Guangdong Province, China) from June to October of 2012. The HWHtR phenotype was defined as a waist to height ratio(WHtR) ≥0.55 and triglyceride level ≥2.0 mmol/L, based on which the participants were divided into HWHtR group and nonHWHtR group. CKD was defined as an eGFR<60 mL/min per 1.73 m2 or an ACR ≥30 mg/g. A logistic regression model was established to investigate the relationship between chronic kidney disease and HWHtR phenotype.</p><p><b>RESULTS</b>Compared with the nonHWHtR group, the HWHtR group had a higher prevalence of chronic kidney disease (11.1% vs 33%, P<0.001). Analysis using the logistic regression model showed that HWHtR was significantly associated with CKD in the unadjusted analyses (OR=3.23, 95% CI: 2.32-4.48, P<0.001). After adjustment for age, sex, history of hypertension, history of diabetes, systolic blood pressure, diastolic blood pressure, drinking, physical exercise, education and current smoking, HWHtR was significantly associated with CKD (OR=2.36, 95% CI: 1.52-3.67, P<0.001); the association of HWHtR and CKD was still significant after further adjustment for BMI (OR=2.12, 95%CI: 1.34-3.35, P<0.001).</p><p><b>CONCLUSION</b>Our finding suggests that HWHtR is associated with CKD in this community population.</p>

The protective effect of polysaccharide extracted from Laminaria japonica Aresch on vessels endothelial cell injury inducing by adrenaline / 中国应用生理学杂志

<p><b>AIM</b>To study the protective effect of Polysaccharide of Laminaria L01 on endothelial cell injury inducing by adrenaline.</p><p><b>METHODS</b>In order to observe the influence of L01 on the release of vWF in endothelial injured rats and HUVEC stimulated by adrenaline, a rat model of endothelial injury was established via injecting adrenaline, the damaged degree of vascular endothelial was evaluated by aortic immunity histochemistry, HUVEC was cultured in vitro, the content of vWF in rat plasma and in supernatant was measured by ELISA.</p><p><b>RESULTS</b>The measure of intact endodermis lengths (microm) stained by immunohistochemistry demonstrated the length in L01 high-dose group and low-dose group was obviously longer than that of model group (P < 0.05) in the 4th and 5th day during the model made. The content of vWF in rat plasma of L01 high-dose group was lower than that of model group (P < 0.05) in the 4th day, there were significant differences between this two groups, and the content of vWF in rat plasma of both L01 high-dose group and low-dose group was lower than that of model group (P < 0.05) in the 4th and 5th days. In the study of cultured HUVEC, on the 24 h, L01 groups (0.01 mg/ml and 0.1 mg/ml) decreased the supernatant vWF level, and on the 48 h, high-dose group (0.1 mg/ml) also decreased the supernatant vWF level, with significant difference compared with adrenaline group (10 microg/ml, P < 0.05).</p><p><b>CONCLUSION</b>L01 presented the protective effect on vascular endothelial cell.</p>