Blood adiponectin concentration at birth in small for gestational age neonates: A meta-analysis

AimsSmall for gestational age (SGA) is associated with increased rates of neonatal mortality and morbidity. Adiponectin secreted from adipose tissue is implicated in the etiology of death and illness during infancy. SGA is also a likely risk factor for the development of metabolic and clinical complications in adulthood. The present study was performed to determine whether SGA neonates and healthy controls show differences in blood adiponectin concentration at birth.MethodsDatabases were searched to identify English-language studies providing the numbers of SGA neonates, the numbers of healthy controls, and the means and standard deviations (SDs) of blood adiponectin concentrations at birth in both groups. Study quality was assessed using the Newcastle–Ottawa Scale (NOS). A meta-analysis was performed to summarize the standardized mean differences (SMDs) in blood adiponectin concentration between SGA neonates and healthy controls.ResultsThe results summarized from five good quality (i.e., NOS score ≥ 5) studies involving 253 neonates showed that blood adiponectin concentration was significantly lower in SGA neonates than in healthy controls (P = 0.016), and the effect was moderate (i.e., SMD = 0.4–0.7).ConclusionsSynthetic evidence indicated that blood adiponectin concentration at birth is lower in SGA neonates than in healthy controls.     

Serum adiponectin is a potential biomarker for metabolic syndrome in peri-and postmenopausal women

Abstract

Metabolic syndrome (MetS) increases its prevalence during menopausal period and there is no appropriate marker for screening before the cardiovascular damage begun. This study aims to find the diagnostic accuracy and the appropriate cutoff level of serum adiponectin for the screening of MetS in peri- and postmenopausal women. Women aged at least 40?years old attending health checkup clinic were recruited. Anthropometric measurements, blood pressure, MENQOL, and blood chemistry (glucose, adiponectin, HDL-C, LDL-C, and TG) were recorded. MetS was defined by JIS 2009 criteria. 290 peri-and postmenopausal women mean age 54.25?±?8.6?years were recruited. 66% was postmenopause and 21.4% of them has MetS. The socioeconomic and lifestyle factors seem similar among women with and without MetS. In the participants with MetS, the prevalence of abdominal obesity was higher (96.8% vs 49.6%, p?<?.001, respectively) and more prevalence of android fat distribution pattern was observed (76.2% vs 36%, p?<?.001, respectively). Serum adiponectin was significantly lower in women with MetS (6.0?±?4.6 vs 9.2?±?5.2?μg/mL, p?<?.001 in MetS and non-MetS, respectively). Serum adiponectin is a good biomarker for MetS and we recommend the cutoff level of serum adiponectin lower than 7.15?μg/mL for screening of MetS (AUC (95% CI) of = 0.72 (0.64–0.79), p?<?.001).     

母乳喂养对宫内发育迟缓儿胰岛素敏感性影响的随访研究

目的 探讨宫内发育迟缓（IUGR）儿胰岛素敏感性和血清脂联素水平，随访研究母乳喂养对胰岛素敏感性的影响。方法 选择2014年10月至2018年10月住院的足月IUGR儿为IUGR组（106例），同期出生足月适于胎龄儿（AGA）为AGA组（90例），记录出生体重、身长，生后7 d检测血清空腹血糖（FG）、三酰甘油（TG）、低密度脂蛋白（LDL）、高密度脂蛋白（HDL）、胰岛素（INS）和脂联素水平，计算胰岛素抵抗指数（HOMA-IR）。将IUGR组按照实际喂养方式，分为母乳喂养组（37例）和配方奶喂养组（42例），于3月龄、6月龄追踪复测上述血清指标和生长指数。结果 与AGA组比较，IUGR组血清胰岛素、HOMA-IR增高，脂联素水平降低，差异均有统计学意义（P < 0.05）。母乳喂养和配方奶喂养组IUGR儿生后7 d、3月龄、6月龄生长指数、血清FG、TG、LDL和HDL水平差异无统计学意义（P > 0.05）。母乳喂养组血清INS、HOMA-IR水平随母乳喂养时间延长而降低，脂联素水平随母乳喂养时间延长而增高（P < 0.05）。结论 IUGR儿生后早期胰岛素敏感性下降，母乳喂养可改善IUGR儿胰岛素敏感性。     

脂联素对高脂饮食诱导的胰岛素抵抗子宫内膜癌裸鼠移植瘤生长的影响

目的 探讨脂联素对高脂饮食诱导裸鼠胰岛素抵抗子宫内膜癌移植瘤生长的影响。方法 40只裸鼠随机分成高脂组和普食组，每组20只，分别喂养高脂饲料（high-fat diet，HFD）和普通饲料（normal diet，ND），10周后测定裸鼠空腹血糖（fasting blood glucose，FBG）和空腹血胰岛素（fasting serum insulin，FINS）水平，计算胰岛素抵抗指数（HOMA-IR），建立胰岛素抵抗裸鼠模型。第11周接种子宫内膜癌HEC-1B细胞，待瘤体长至0.5 cm时，两组随机选取10只裸鼠腹腔注射脂联素（adiponectin，APN）分为HFD+APN组、ND+APN组；其余裸鼠分别注射0.9%氯化钠分为HFD组、ND组；14周后，测定各组血糖和血脂的代谢情况。结果 高脂组裸鼠10周后的平均体重、体长、FBG、FINS、HOMA-IR均大于普食组，糖耐量试验和胰岛素耐量试验结果显示血糖水平亦高于普食组（均P＜0.05）；接种子宫内膜癌HEC-1B细胞后均成瘤，建模成功。HFD+APN组和ND+APN组移植瘤平均重量和体积增长速度均分别低于HFD组和ND组（均P<0.05）。HFD组和HFD+APN组14周后的FINS、HOMA-IR、TC和TG均较ND组和ND+APN明显升高（均P<0.01），且HFD组明显高于HFD+APN组（均P<0.01）；HFD+APN组的血脂联素水平低于ND+APN组（P<0.01），HFD组则低于ND组（P<0.05）。结论 脂联素可改善高脂饮食导致的胰岛素抵抗，抑制子宫内膜癌移植瘤生长。     

Can adiponectin have an additional effect on the regulation of food intake by inducing gastric motor changes?

The regulation of food intake is a complex mechanism, and the hypothalamus is the main central structure implicated. In particular, the arcuate nucleus appears to be the most critical area in the integration of multiple peripheral signals.Among these signals, those originating from the white adipose tissue and the gastrointestinal tract are known to be involved in the regulation of food intake.The present paper focuses on adiponectin, an adipokine secreted by white adipose tissue, which is reported to have a role in the control of feeding by acting centrally. The recent observation that adiponectin is also able to influence gastric motility raises the question of whether this action represents an additional peripheral mechanism that concurs with the central effects of the hormone on food intake. This possibility, which represents an emerging aspect correlating the central and peripheral effects of adiponectin in the hunger-satiety cycle, is discussed in the present paper.     

Effect of green coffee extract supplementation on serum adiponectin concentration and lipid profile in patients with non-alcoholic fatty liver disease: A randomized,controlled trial

ObjectivesThe current study evaluated the effects of green coffee extract (GCE) on serum lipid profile and adiponectin levels in patients with nonalcoholic fatty liver disease (NAFLD).DesignThis randomized, double-blind, placebo-controlled clinical trial was conducted on NAFLD patients aged 20–60 years and body mass index (BMI) of 25−35 kg/m².SettingPatients were recruited from the Bahman poly-clinic (Neyshabur, Iran) between January and June 2016.InterventionsThe study subjects were randomly assigned to receive a daily dose of 400 mg GCE (n = 24) or placebo (n = 24) for eight weeks.Main outcome measuresSerum liver enzyme levels, lipid profile, adiponectin concentrations, and hepatic steatosis grade were measured for all patients at baseline and the end of the trial.ResultsGCE supplementation significantly reduced BMI [mean difference (MD): −0.57 and 95 % confidence interval (CI): −0.84 to −0.29, P < 0.001] and increased serum high-density lipoprotein cholesterol (MD: 7.06, 95 % CI: 0.25–13.87, P < 0.05) compared to the control group. Serum total cholesterol decreased significantly within the GCE group (MD: −13.33, 95 % CI: −26.04 to −0.61, P < 0.05). Triglyceride levels reduced significantly in GCE group compared to the placebo group (MD: -37.91; 95 % CI: −72.03 to −3.80; P = 0.03). However, this reduction was not significant when was further adjusted for mean changes in BMI and daily energy intake (MD: -23.43; 95 % CI: −70.92 to 24.06; P = 0.32). Hepatic steatosis grade, liver enzymes, and adiponectin levels did not show significant differences between the two groups after the intervention.ConclusionsGCE supplementation improved serum lipid profile and BMI in individuals with NAFLD. GCE may be useful in controlling NAFLD risk factors.     

老年全麻患者血清脂联素、基质金属蛋白酶-9水平与术后认知功能障碍的关系

目的 评价老年全身麻醉患者血清脂联素(adiponectin,ADP)及基质金属蛋白酶-9(matrix metalloproteinase-9,MMP-9)水平与术后认知功能障碍(postoperation cognitive dysfunction,POCD)的关系.方法 择期全身麻醉下行全髋关节置换术老年患者98例,年龄65岁～83岁,美国麻醉医师协会(ASA)分级Ⅰ～Ⅱ级,性别不限.所有患者分别于手术前3d及术后1、2、3、7d采用蒙特利尔认知评估表(montreal cognitie assessment,MoCA)评估认知功能,并采集空腹静脉血标本测定血清ADP及MMP-9水平.根据术后3d是否发生POCD分为POCD组和无POCD组.结果 28例患者发生POCD,发生率为28.5％,POCD组患者术后1、2、3d及7d血清MMP-9水平[(537±68)、(481±64)、(432±64)、(393±48) μg/L]较术前[(293±50) μg/L]明显升高(P＜0.05),血清ADP水平[(4.3±1.6)、(4.7±1.2)、(5.1±1.6)、(6.0±1.1) mg/L]较术前[(9.39± 1.36) mg/L]明显下降(P＜0.05).无POCD组术后1、2d血清MMP-9水平较术前明显升高(P＜0.05),血清ADP水平较术前明显下降,术后3d均恢复至术前水平.组间比较,POCD组术后各时间血清MMP-9水平明显高于无POCD组[(439±53)、(387±66)、(301±67)、(296±54)μg/L](P＜0.05);而ADP水平均明显低于无POCD组[(5.7±1.0)、(6.7±1.4)、(9.1±1.0)、(9.4±1.2)mg/L] (P＜0.05).直线相关分析:POCD组患者血清MMP-9水平与MoCA评分呈负相关(r=-0.833,P＜0.01),ADP水平与MoCA评分呈正相关(r=0.513,P＜0.01).结论 老年全麻患者术后血清ADP水平下降与MMP-9水平升高可能参与了POCD发生的病理生理过程.     

血清脂联素及尿酸水平与2型糖尿病视网膜病变的相关性研究

目的观察2型糖尿病(type 2 diabetes mellitus,T2DM)患者血清脂联素及尿酸水平变化,初步探讨其与糖尿病视网膜病变(diabetic retinopathy,DR)的相关性。方法回顾性分析2017年6月至2019年6月在青岛市中心医院内分泌科住院治疗的120例T2DM患者的临床资料,根据眼底结果分为无DR组(40例)、增生型DR组(45例)、非增生型DR组(35例),同期选取健康体检者30例作为对照组。比较4组受试者实验室生化指标、血清脂联素及尿酸水平。多因素Logistic回归分析影响DR的危险因素。结果4组受试者总胆固醇(cholesterol total,TC)比较差异无统计学意义(P>0.05),空腹血糖(fasting blood-glucose,FPG)、甘油三酯(glycerin trilaurate,TG)、低密度脂蛋白胆固醇(low density lipoprotein cholesterol,LDL-C)、高密度脂蛋白胆固醇(high density lipoprotein cholesterol,HDL-C)、糖化血红蛋白(glycosylated hemoglobin,HbA1c)比较差异有统计学意义(F=1.638、0.582、2.715、5.382、5.174,P=0.007、0.016、0.028、0.003、0.001);无DR组、非增生型DR组及增生型DR组TG、HbA1c、FPG均显著高于对照组(无DR组vs对照组:t=2.246、12.440、14.539,P=0.028、0.000、0.000;非增生型DR组vs对照组:t=3.127、14.775、14.767,P均=0.000;增生型DR组vs对照组:t=3.349、16.197、12.755,P=0.001、0.000、0.000),且随病情加重而上升。非增生型DR组及增生型DR组HDL-C显著低于对照组(非增生型DR组vs对照组:t=2.113,P=0.040;增生型DR组vs对照组:t=2.778,P=0.007),且随病情加重而下降。4组血清脂联素及尿酸水平比较差异具有统计学意义(F=4.728、26.491,P=0.004、0.001),无DR组、非增生型DR组及增生型DR组血清脂联素水平均显著低于对照组(无DR组vs对照组:t=2.227,P=0.031;非增生型DR组vs对照组:t=5.198,P=0.000;增生型DR组vs对照组:t=6.827,P=0.000),且随病情加重而下降。无DR组、非增生型DR组及增生型DR组血清尿酸水平均显著高于对照组(无DR组vs对照组:t=5.681,P=0.000;非增生型DR组vs对照组:t=13.688,P=0.000;增生型DR组vs对照组:t=23.620,P=0.000),且随病情加重而上升。多因素Logistic回归分析结果显示,糖尿病病程、HbA1c、脂联素及尿酸是影响DR的独立危险因素。结论DR患者血清脂联素水平降低,尿酸水平升高,且与DR进展相关,脂联素和尿酸是影响DR的危险因素。     

牙周干预对伴冠心病牙周炎患者血清炎性因子和脂联素的影响

目的分析冠心病伴牙周炎患者牙周干预治疗前、后血清中炎性因子和脂联素水平的变化,探讨慢性牙周炎与冠心病的关系及牙周干预治疗对冠心病伴牙周炎患者的重要性。方法本研究包括冠心病伴牙周炎患者56例和单纯冠心病不伴牙周炎患者42例。冠心病伴牙周炎患者给予牙周干预治疗,对冠心病组及冠心病伴牙周炎组干预前、后的牙周临床指标及血清炎性因子（CRP、TNF-α、IL-6）和脂联素水平进行比较分析。结果冠心病伴牙周炎组牙周干预后牙周临床指数比干预前明显好转。冠心病伴牙周炎组干预前与冠心病组相比,所有血清炎性因子（CRP、TNF-α、IL-6）水平升高;干预3个月后明显降低（P〈0.05）。冠心病伴牙周炎组干预前水平有所降低的脂联素在干预3个月后明显升高（P〈0.05）。结论慢性牙周炎可增加冠心病的发病风险,牙周干预治疗可降低血清中炎性因子水平,提高血管保护因子水平,对冠心病病程的发展有改善作用。     

子痫前期血清脂联素反常升高与瘦素水平改变的相关性

目的探讨血清脂联素、瘦素和可溶性瘦素受体水平在子痫前期患者中的变化及其意义。方法采用酶联免疫吸附试验方法检测38例子痫前期患者和42例正常妊娠（对照组）血清脂联素、瘦素和可溶性瘦素受体水平，并计算游离瘦素指数值（瘦素／可溶性瘦素受体）。结果子痫前期患者血清脂联素、瘦素和游离瘦素指数分别为1691，7μg／ml、37．5ng／ml和0．95，明显高于对照组（分别为689，4μg／ml、19．3ng／ml和0．49），但两组别间可溶性瘦素受体水平则未见明显差异（分别为35．0ng／ml和42，2ng／ml）。在脂联素和瘦素、可溶性瘦素受体及游离瘦素水平间并未见明显相关，子痫前期患者脂联素、瘦素和游离瘦素的ROC曲线下面积均低于0.5。结论子痫前期患者血清脂联素水平存在明显的反常升高，瘦素的生物利用度也明显提高，可能与子痫前期的发生发展有关。