Decreased levels of plasma adiponectin associated with increased risk of colorectal cancer

AIM:To investigate the association between adiponectin levels and risk of colorectal adenoma and cancer (early and advanced).METHODS: A cross-sectional study in a cohort of hospital-based patients was conducted between January 2004 and March 2006 at Yamagata University Hospital. Male subjects, who had colorectal tumors detected by endoscopic examination, were enrolled according to inclusion and exclusion criteria. Based on the T factor of the TNM system, intraepithelial carcinoma and submucosally invasive c...     

高效抗逆转录病毒治疗对艾滋病患者机体代谢的影响

目的探讨高效抗逆转录病毒治疗（HAART）后艾滋病患者代谢状态的临床及流行病学特征。方法选择本院收治的HAART后的高脂血症艾滋病患者42例与未经HAART治疗的艾滋病患者41例,就基线血脂水平、高脂血症类型、心血管事件的风险、非酒精性脂肪肝、高血压、高血糖、代谢综合征以及心脏结构和功能进行横断面研究,对两组患者的上述指标进行比较。结果在艾滋病患者未进行HAART治疗组中,血脂异常以高密度脂蛋白（HDL）降低为主（24.32%）,14.63%（6/41）患者评估为心血管病事件低危组;在HAART治疗组中,临床分型以混合性高脂血症为主,其中高TG＋高TC血症者占42.86%,高TG＋高TC＋低HDL血症者占11.90%,高TG＋低HDL血症者占23.81%,35.71%的患者评估为心血管病事件低危组,中危和高危组患者各占11.90%。HAART治疗组与未治疗组患者中,非酒精性脂肪肝（NAFLD）比例分别为78.58%和4.88%;分别有1例（2.44%）和16例（38.10%）患者诊断为代谢综合征;分别有19.05%和21.95%的患者出现心脏舒张功能减退。结论在未治疗的艾滋病患者中,血脂异常以低HDL血症为主,部分患者出现非酒精性脂肪肝、高血压、糖尿病、代谢综合征和心脏舒张功能不全等的临床表现;随着HAART的应用,血脂异常向混合高脂血症转化,且心血管事件的危险性明显增加,代谢综合征的临床特征表现得更加明显。本研究结果提示,艾滋病患者在HAART治疗前后应检测引起代谢综合征和心血管事件的危险因素,以便早期进行干预治疗。     

北京市东城区居民代谢综合征状况的调查

目的了解北京市糖尿病(DM)高危人群的代谢综合征(MS)发病状况。方法对空腹血糖≥5.6mmol／L(100mg／d1)和(或)餐后2h指血血糖≥6．7mmol／L(120mg／d1)者进行体检及口服75g葡萄糖耐量试验(OGTT)检测，分析MS的发生情况。结果本组受试者中超重(37．0％)、肥胖(8．8％)、中心性肥胖(48．4％)、高血压(21．7％)、糖调节受损(15．6％)、DM(7、9％)以及血脂异常的发生率甚高。上述代谢指标存在异常者，男性发生率高于女性，而且存在增龄效应。平均胰岛素抵抗指数(HOMA-IR)也随着年龄的增长而增加，60岁以上达到高峰。结论北京市东城区居民代谢综合征发病情况严重，并且存在增龄效应。用代谢综合征诊断标准中国建议Ⅱ评价MS的结果与用WHO标准评价MS的结果比较接近。     

阿尔茨海默病和血管性痴呆患者的代谢综合征和对氧磷酶-2基因311多态性研究

目的 探讨阿尔茨海默病(AD)和血管性痴呆(VD)患者间代谢综合征组分与对氧磷酶-2(PON2)311基因多态性的差异.方法 研究对象包括49例AD患者和23例VD患者.用聚合酶链反应-限制性片段长度多态性分析法检测患者PON2基因311位点多态性.测量患者体重、身高、腹围、血压,计算体质指数.检测空腹血清胆固醇、甘油三酯、高密度脂蛋白、低密度脂蛋白、空腹血糖(FBS)等.应用简明智能评定量表(MMSE)、日常生活能力量表(ADL)、Hachinski缺血量表等评定三组患者的认知等临床特征.结果 AD 和VD两组间的血压、体质指数、腹围、血清甘油三酯、胆固醇、高密度脂蛋白、低密度脂蛋白、空腹血糖差异无统计学意义(P>0.05).组间的PON2 311基因型C/C、C/S和S/S分布差异无统计学意义,组间C和S等位基因频率也无统计学差异.AD组中C/C型的舒张压高于C/S型;S/S型的血清甘油三酯水平高于C/S型(P<0.05).VD组中上述三种基因型间血脂、血糖、血压、腹围等无统计学差异.结论 AD和VD患者代谢综合征各项组分、PON2 311基因型和等位基因频率均无显著性差异.AD患者PON2 311C纯合子可能与较高的舒张压有关;而PON2 311S纯合子可能与较高的甘油三酯水平有关.而在VD患者中未发现这种关系.     

Clinical expression of insulin resistance in hepatitis C and B virus-related chronic hepatitis： Differences and similarities

AIM： To investigate the prevalence of the clinical pa- rameters of insulin resistance and diabetes in patients affected by chronic hepatitis C （CHC） or chronic hepa- titis B （CHB）. METHODS： We retrospectively evaluated 852 consec- utive patients （726 CHC and 126 CriB） who had under- gone liver biopsy. We recorded age, sex, ALT, type 2 diabetes and/or metabolic syndrome （MS）, body mass index （BMI）, and apparent disease duration （ADD）. RESULTS： Age, ADD, BMI, prevalence of MS and diabetes in patients with mild/moderate liver fibrosis were significantly higher in CHC. However, the degree of steatosis and liver fibrosis evaluated in liver biop- sies did not differ between CHC and CHB patients. At multivariate analysis, age, sex, BMI, ALT and diabetes were independent risk factors for liver fibrosis in CHC, whereas only age was related to liver fibrosis in CHB. We also evaluated the association between significant steatosis （〉 30%） and age, sex, BMI, diabetes, MS and liver fibrosis. Diabetes, BMI and liver fibrosis were associated with steatosis 〉 30% in CHC, whereas only age and BMI were related to steatosis in CriB. CONCLUSION： These data may indicate that hepatitis C virus infection is a risk factor for insulin resistance.