阻塞性睡眠呼吸暂停低通气综合征流行病学研究方法和意义

阻塞性睡眠呼吸暂停低通气综合征（OSAHS）是对人类健康有重要影响的临床疾病之一，越来越受到人们的重视；但从流行病学角度认识这个疾病还存在一些问题。疾病的相关研究通常是要兼顾宏观和微观的；虽然近年来微观研究已进入分子生物学时代，宏观的流行病学研究仍不容忽视。     

癌症治疗中的宏观与微观辩证

笔者在临床工作中,经过反复思考与验证,结合现代医药理论与成果探讨中医药治疗癌症的思路,提出癌症治疗中宏观与微观辩证的方法,以供讨论。     

放射自显影术在微剂量分布研究中的应用

综述了近年来在核医学中利用微剂量学实验方法研究放射性药物在生物体内微剂量分布的工作，介绍了微观放射自显影术。这里的微剂量分布是指细胞与亚细胞水平的剂量分布。只有掌握了准确的微剂量分布信息，才能较好地预测及评价放射性药物的诊断和治疗效果。     

2型糖尿病(消渴病)微观辨证的临床研究

目的　为糖尿病的临床辨证、治疗用药提供客观依据和帮助。方法　观察 2型糖尿病 (消渴病 ,diabetesmellitus)不同证型患者各 30例 ,正常对照组 30例 ,检测血清一氧化氮 (NO)、血浆α -颗粒膜蛋白 (GMP 14 0 )、血浆D -二聚体 (D D)、血清白细胞介素 - 6 (IL 6 )这些微观指标的变化 ,探讨其与中医辨证分型的关系。结果　①血清NO值在各组中的变化是阴虚热盛组 >正常对照组>气阴两虚组 >气滞血瘀组 ,每两组间具有显著性差异 (P <0 0 5 ) ,其中气滞血瘀组与其它 3组具有非常显著性差异 (P <0 0 1)。②糖尿病各组患者血浆GMP 14 0、D D值均较正常对照组有非常显著性增高 (P <0 0 1) ,在糖尿病组各证型中 ,呈阴虚热盛组 <气阴两虚组 <气滞血瘀组变化趋势 ,且血浆GMP 14 0和D D的变化呈正相关 (r=0 6 6 )。③血清IL 6在糖尿病组较正常对照组升高 ,其变化呈阴虚热盛组 <气阴两虚组 <气滞血瘀组趋势 ,每两组间具有非常显著性差异 (P <0 0 1)。结论　糖尿病发病以正气不足为内在依据。随着病程的进展 ,脾肾亏虚及血瘀加重是必然趋势。治疗应重视补脾肾和活血化瘀     

身心深处有至美——读解匡调元"生命微观意象艺术"

最近在中国画院观看了上海中医药大学匡调元教授的画展——"生命微观意象艺术"。初看其画,颇有西方现代派抽象主义的韵味,如有的画面就有点象米罗的作品。谈起他的画,匡教授认为,这不是老来闲趣,而是对生命科学的一种思索。看完画展,笔者也陷入了沉思:所谓对生命科     

Effect of curcumin on nitric oxide synthase expression in Iipopolysaccharide-activated microglia cells and the anti-oxidative effect of curcumin

BACKGROUND: It has been demonstrated that curcumin can increase the activities of various anti-oxidase in blood and tissue, effectively eliminate various free radicals, reduce the production of peroxisome, and alleviate oxidative stress reaction. Whether it has the same effect on microglia? OBJECTIVE: To observe the effects of curcumin on the expressions of inducible nitric oxide synthase (iNOS), nuclear factor-κB (NF-κB), and superoxide dismutase (SOD) in microglial cell line BV stimulated by lipopolysaccharide (LPS). DESIGN: An observational comparative study. SETTING: Research Room of Biochemistry, Medical College of Nantong University. MATERIALS: Mice microglia cell line BV, iNOS and NF-κB reporter gene plasmids were presented by Dr. Bhat.NR. from the Medical University of South Carolina (USA). Curcumin was produced by the Xi'an Branch of China Chengdu Scholar Bio-Tech. Co.,Ltd.; LPS (E.Coli O26:B6), anti-mice iNOS monoclonal antibody, horseradish peroxidase labeled goat-anti-mice IgG were the products of Sigma Company (USA). METHODS: The experiments were carried out in the Research Room of Biochemistry, Medical College of Nantong University from May 2006 to April 2007. ① Detection of iNOS: The cells were seeded onto 24-well plate at the density of 1×105, After the cells had adhered to the cover glasses, the cells were grouped as negative control group (the primary antibody was replaced by phosphate buffered solution PBS); normal control group (the cells were normally cultured); LPS-treated group (the cells were treated with LPS for 24 hours); curcumin+LPS group (the cells were treated with curcumin for 1 hour and LPS for 24 hours). The expressions of iNOS protein were detected with immunocytochemical staining. ② Determination of iNOS and NF-κB gene activities: According to the introduction of the kit for transfection, iNOS or NF-κB report gene plasmids were transiently transfected with LipofectamineTM2000 liposomes into the cells in the 24-well plate for 24 hours. The cells were divided into normal control group (the cells were normally cultured after transfected with report gene plasmids); blank plasmid group (the cells were normally cultured after transfected with blank plasmids); LPS-treated group (the cells were treated with LPS for 4 hours after transfected with report gene plasmids); curcumin+LPS group (the cells were treated with curcumin for 1 hour and LPS for 24 hours after transfected with report gene plasmids). The content of luciferase in the cell lysis buffer was determined after cell lysis. ③ Determination of SOD activity: The cells were seeded into culture bottle at the density of 1×106, and the divided into four groups, including normal control group (the cells were normally cultured); LPS-treated group (the cells were treated with LPS for 24 hours); curcumin+LPS group (the cells were treated with curcumin for 1 hour and LPS for 24 hours); vitamin C+LPS group (the cells were treated with vitamin C for 1 hour and LPS for 24 hours). The SOD activity was determined with xanthine oxidase and quantitative colorimetric assay. MAIN OUTCOME MEASURES: The expressions of iNOS protein, iNOS and NF-κB, and the activity of SOD were observed. RESULTS: ① Expression of iNOS protein in microglia: The expression of iNOS protein in the LPS-treated group was obviously higher than that in the negative control group (P < 0.01); Those in the curcumin+LPS group were significantly decreased as compared with that in the LPS-treated group (P < 0.01). ② Expressions of iNOS and NF-κB genes: The expressions of iNOS and NF-κB genes in the LPS-treated group were significantly higher than those in the normal control group (P < 0.01); Those in the curcumin+LPS group were significantly lower than those in the LPS-treated group (P < 0.01). ③ SOD activity: The activity of SOD in the LPS-treated group was significantly lower than those in the normal control group (P < 0.01). It in the curcumin+LPS group and vitamin C +LPS group was significantly higher than that in the LPS-treated group (P < 0.01). CONCLUSION: Curcumin could inhibit the expression of iNOS in the activated microglia, and it also has the abilities in eliminating free radicals and antagonizing lipid peroxidation.     

骨质疏松症的首选药物——骨化三醇

骨质疏松是以骨量减少、骨的微观结构退化为特征的，致使骨的脆性增加以及易于发生骨折的一种全身性骨骼疾病。表现为腰酸背疼、腿抽筋、驼背、变矮，严重的容易骨折且不易愈合。     

硫酸酯化葡甘聚糖凝胶颗粒的微观形貌及其吸附行为研究

制备了硫酸酯化魔芋葡甘聚糖凝胶颗粒血液低密度脂蛋白吸附剂，扫描电镜观察产物呈交联网状多孔结构。体外静态吸附实验表明：在37℃振荡吸附2h后，对总胆固醇（TC）、低密度脂蛋白及超低密度脂蛋白胆固醇（LDL＋VLDL-C）、高密度脂蛋白胆固醇（HDL-C）的吸附率分别为52．68％、54．76％、27．78％。通过吸附动力学曲线和吸附等温线分析，吸附剂对LDL＋VLDL-C的作用包括类似分子筛的吸附和电荷间静电相互作用两种方式。