Growth hormone improves insulin resistance in visceral adipose tissue after duodenal-jejunal bypass by regulating adiponectin secretion

BACKGROUND The mechanism of improvement of type 2 diabetes after duodenal-jejunal bypass(DJB)surgery is not clear.AIM To study the morphological and functional changes in adipose tissue after DJB and explore the potential mechanisms contributing to postoperative insulin sensitivity improvement of adipose tissue in a diabetic male rat model.METHODS DJB and sham surgery was performed in a-high-fat-diet/streptozotocin-induced diabetic rat model.All adipose tissue was weighed and observed under microscope.Use inguinal fat to represent subcutaneous adipose tissue(SAT)and mesangial fat to represent visceral adipose tissue.RNA-sequencing was utilized to evaluate gene expression alterations adipocytes.The hematoxylin and eosin staining,reverse transcription-quantitative polymerase chain reaction,western blot,and enzyme-linked immunosorbent assay were used to study the changes.Insulin resistance was evaluated by immunofluorescence.RESULTS After DJB,whole body blood glucose metabolism and insulin sensitivity in adipose tissue improved.Fat cell volume in both visceral adipose tissue(VAT)and SAT increased.Compared to SAT,VAT showed more significantly functional alterations after DJB and KEGG analysis indicated growth hormone(GH)pathway and downstream adiponectin secretion were involved in metabolic regulation.The circulating GH and adiponectin levels and GH receptor and adiponectin levels in VAT increased.Cytological experiment showed that GH stimulated adiponectin secretion and improve insulin sensitivity.CONCLUSION GH improves insulin resistance in VAT in male diabetic rats after receiving DJB,possibly by increasing adiponectin secretion.

神经内镜下治疗基底节区高血压脑出血的效果研究

目的探讨传统开颅手术与神经内镜手术在治疗基底节区高血压脑出血(HICH)患者中的疗效与安全性,为其临床治疗提供一定依据。方法 86例基底节区HICH患者,根据手术方式不同将患者分为神经内镜组(40例)和开颅手术组(46例),开颅手术组采用开颅血肿清除手术治疗,神经内镜组采用神经内镜微创血肿清除手术治疗,对比两组基底节区HICH患者皮肤切口大小、骨窗大小、皮层切口大小、手术时间、术中出血量、血肿清除率、术后并发症、近期与远期疗效和病死率。结果神经内镜组患者的皮肤切口大小、骨窗大小、皮层切口大小、手术时间、术中出血量均明显低于开颅手术组(P <0.01);两组患者血肿清除率差异无统计学意义(P>0.05);神经内镜组患者术后并发症发生率为10.0%,明显低于开颅手术组的28.3%(P <0.05);神经内镜组患者近期疗效良好率为90.0%明显高于开颅手术组的60.9%(P <0.01);神经内镜组患者远期疗效良好率为92.5%明显高于开颅手术组的63.0%(P <0.01);开颅手术组患者死亡3例,病死率6.5%;神经内镜组患者死亡2例,病死率5.0%;两组患者病死率差异无统计学意义(P>0.05)。结论神经内镜手术治疗基底节区HICH可以减小手术创伤,缩短手术时间,降低出血量,提升近期与远期疗效,降低并发症发生率。