抵抗素和高敏C反应蛋白诊断急性阑尾炎的价值探讨

目的探讨抵抗素和高敏C反应蛋白（Hs—CRP）的检测在急性阑尾炎诊断中的价值。方法采用醇联免疫吸附法（ELISA）检测血清抵抗素含量,同时采用免疫比浊法对血清Hs—CRP进行测定;将三组阑尾炎患者（急性坏疽性阑尾炎35例,急性化脓性阑尾炎48例,急性单纯性阑尾炎32例）和阑尾无炎症患者（30例）血清抵抗素和Hs—CRP水平进行比较。结果三组急性阑尾炎患者与阑尾无炎症患者比较,血清抵抗素和Hs—CRP水平均明显升高（P〈0．01）;急性坏疽性阑尾炎及急性化脓性阑尾炎与急性单纯性阑尾炎比较,血清抵抗素和Hs—CRP水平明显升高（P〈0．01）。同时急性阑尾炎患者抵抗素浓度与Hs—CRP浓度呈正相关（r=0．59,P〈0．01）。结论在临床症状及白细胞计数升高的基础上,结合血清抵抗素和Hs—CRP水平的测定对急性阑尾炎的诊断具有一定价值。     

Hyperbaric oxygen therapy affects insulin sensitivity/resistance by increasing adiponectin,resistin, and plasminogen activator inhibitor-I in rats

Background/aim Hyperbaric oxygen therapy (HBOT) causes insulin sensitivity, but the reason for this is not known yet. The aim of the present study was to investigate the effect of HBOT on insulin sensitivity via resistin, plasminogen activator inhibitor-I (PAI - I), and adiponectin.Materials and methods The study was designed using HBOT and control groups, with eight rats in each group. After 20 days of HBOT under 2.5 atmospheres for 90 min, the fasting insulin (FI), resistin, PAI-I, homeostatic model assessment of insulin resistance scores (HOMA–IR), quantitative insulin sensitivity check index (QUICKI), fasting plasma glucose (FPG), triglyceride, and high-density lipoprotein cholesterol (HDL-C) in the plasma were measured. The resistin, PAI-I, and adiponectin mRNA expression levels were also measured in the adipose tissue.ResultsCompared to the control group, the FI, FPG, and HOMA-IR scores were significantly lower in the HBOT group, whereas the HDL-C and QUICKI scores were found to be higher. In addition, the resistin, adiponectin, and PAI-I mRNA expression levels were also higher in the HBOT group.ConclusionThe present study demonstrated that the HBOT had regulated the FI, FPG, and HDL-C associated with metabolic syndrome and diabetes mellitus. Moreover, the study showed that HBOT causes insulin sensitivity by raising adiponectin.     

Elevated resistin is related to inflammation and residual renal function in haemodialysed patients

AIM: Resistin is an adipocytokine that recently generated much interest. Because of the fact that inflammation, endothelial cell damage or injury is invariably associated with such clinical conditions as thrombosis, atherosclerosis and their major clinical consequences, that is, cardiovascular disease and resistin play a role in linking inflammation and cardiovascular disease, the aim of the study was to assess resistin in correlation with markers of inflammation, endothelial cell injury and residual renal function in haemodialysed (HD) patients. METHODS: We assessed resistin, markers of coagulation: thrombin-antithrombin complexes (TAT), prothrombin fragments 1+2; fibrinolysis: tPA, plasminogen activator inhibitor type 1, plasmin-antiplasmin complexes (PAP); endothelial function/injury: von Willebrand factor (vWF), thrombomodulin, intracellular adhesion molecule (ICAM); inflammation: high sensitivity C-reactive protein (hsCRP), tumour necrosis factor alpha and interleukin-6 (IL-6). RESULTS: Healthy volunteers and HD patients did not differ significantly regarding age, leucocyte count, serum iron, aspartate and alanine aminotransferases activities, calcium, cholesterol, tPA concentration. Triglycerides, CRP (assessed by high sensitivity method), phosphate, urea, creatinine, IL-6, tumour necrosis factor alpha, vWF, prothrombin fragments 1+2, TAT, PAP, thrombomodulin, ICAM, plasminogen activator inhibitor type 1 and resistin, were elevated in HD patients when compared with the control group. Serum albumin, total protein, haemoglobin and haematocrit were significantly lower in HD patients when compared with the control group. In HD patients with hsCRP 0e; 6 mg/L, resistin, IL-6, vWF and F1+2 were significantly higher, whereas tPA was significantly lower than in patients with hsCRP<6 mg/L. Moreover, HD patients with residual renal function have significantly lower resistin when compared with patients without it. Resistin was significantly higher in diabetics. In HD patients, resistin correlated significantly, in univariate analysis, with calcium, phosphate, PTH, TIBC, vWF residual renal function, urea, hsCRP, IL-6 and tended to correlate with tPA and ferritin. In the healthy volunteers, resistin was related to IL-6 and hsCRP. In multiple regression analysis, resistin was independently related to hsCRP, IL-6, residual renal function in HD patients. CONCLUSION: Elevated resistin related to markers of inflammation may represent a novel link between inflammation and adipocytokines in HD patients. Impaired renal function and inflammation are responsible for elevated resistin in HD patients.     

不同糖耐量人群血浆神经肽Y、抵抗素水平变化及意义

目的探讨血浆神经肽Y（NPY）、抵抗素水平与糖脂代谢的关系。方法采用放射免疫分析法测定不同糖耐量人群[2型糖尿病24例（T2DM组）,糖耐量受损22例（IGT组）,正常健康人20例（对照组）]血浆NPY、抵抗素水平,并与血糖、血脂指标进行相关性分析。结果T2DM组、IGT组NPY、抵抗素水平明显高于对照组（P〈0.05）;肥胖者血浆抵抗素水平高于非肥胖者（P〈0.05）,血浆NPY两者间无显著差异;NPY与TC呈正相关（r=0.32,P〈0.05）,与其他指标无相关性;抵抗素与FPG、FINS、腰围、Homa-IR呈正相关（r分别为0.58、0.43、0.54、0.46,P均〈0.01）,与BMI、TC、TG无相关性;抵抗素与FFA呈强相关性（r=0.56,P〈0.01）;血浆NPY与抵抗素之间无相关性。结论NPY与脂代谢和T2DM的发生有一定关系,抵抗素与肥胖和糖脂代谢紊乱有关。     

Serum ghrelin, leptin and resistin levels in adolescent girls with polycystic ovary syndrome

Aim:  The aim of the present study was to investigate the levels of leptin, resistin and ghrelin in polycystic ovary syndrome (PCOS), and to assess their possible correlations with the hormonal and metabolic features of PCOS.
Methods:  Sixteen obese (ObPCOS) and 12 lean (LeanPCOS) subjects with PCOS and 19 obese control subjects were enrolled in the study.
Results:  Ghrelin, leptin and resistin concentrations were similar between groups when body mass index (BMI) was used as a covariate ( P  > 0.05). Mean androgen, SHBG, luteinizing hormone (LH) levels and luteinizing hormone/follicle-stimulating hormone (LH/FSH) ratio tended to be similar between polycystic ovary syndrome (PCOS) groups. However, when compared with the control group, SHBG was lower and androgen, LH levels and LH/FSH ratio were higher in the PCOS groups. Free testosterone levels significantly correlated with resistin (r = −0.38), SHBG correlated significantly with body mass index (BMI) (r = −0.45) and resistin (r = −0.67), LH/FSH ratio was significantly correlated with ghrelin (r = −0.52) and estradiol (E2) levels (r = 0.51).
Conclusion:  ObPCOS and LeanPCOS groups having higher LH/FSH ratios and lower SHBG levels suggest that there could be factors other than adiposity responsible for the clinical features of PCOS patients. In the light of our results, those factors can be suggested as ghrelin and E2 for the elevated LH/FSH ratio and resistin for the lowered SHBG.     

中国汉族人群 resistin 基因5′调控区与2型糖尿病的关系

目的分析resistin 基因5′调控区单核苷酸多态性(SNPs)与2型糖尿病的关系.方法对30名2型糖尿病患者及30名非糖尿病对照者resistin 基因5′调控区进行测序分析(所有受试者均为中国汉族人群).采用χ2检验比较两组间 SNPs 的差异.结果共检测出4个SNPs多态位点,分别为g.-638G>A(0.1417)、g.-537A>C(0.0667)、g.-420C>G(0.3083)、 g.-358G>A(0.1417).统计显示2型糖尿病患者与对照组之间各SNPs等位基因频率无显著性差异.结论在中国汉族人群resistin 基因5′调控区多态位点与2型糖尿病无关.     

高血压前期中医辨证分型与脂联素、瘦素、抵抗素水平的相关性研究

[目的]研究脂联素、瘦素、抵抗素水平对高血压前期及其中医辨证分型的影响,并探讨其水平与年龄、体重指数、收缩压、舒张压、平均动脉压的相关性。[方法]纳入初诊为高血压前期组受试者79例,其中肝火亢盛型20例、阴虚阳亢型18例、痰湿壅盛型22例、阴阳两虚型19例,同时纳入理想血压健康体检组受试者15例为对照组。分别测定上述受试者空腹血清脂联素、瘦素、抵抗素水平,并进行统计分析。[结果]1)高血压前期组空腹血清脂联素显著低于对照组(P0.01),空腹血清瘦素、抵抗素水平显著高于对照组(P0.01)。2)痰湿壅盛型受试者脂联素水平低于其他3个证型(P0.05),瘦素、抵抗素水平高于其他3个证型(P0.05),肝火亢盛、阴虚阳亢、阴阳两虚3个证型经两两比较差异无统计学意义(P0.05)。3)在高血压前期组中,脂联素水平与收缩压和平均动脉压呈负相关,瘦素与收缩压、舒张压和平均动脉压呈正相关,抵抗素与上述指标无相关性。在对照组中瘦素与年龄、收缩压、舒张压和平均动脉压呈正相关,脂联素、抵抗素与上述指标无明显相关性。[结论]1)高血压前期组较理想血压组脂联素水平下降,并且瘦素、抵抗素水平升高,且与血压水平有不同程度的相关性,说明脂肪组织可能参与了高血压前期的发生。2)痰湿壅盛型受试者脂联素水平低于其他3个证型,而瘦素、抵抗素水平高于其他3个证型,说明脂肪组织的内分泌功能可能影响高血压前期的中医辨证分型,或可成为高血压前期中医辨证分型的客观指标之一。3)对脂肪组织内分泌功能的干预或可成为预防高血压前期发生乃至发展为临床高血压的有效途径。