The proprotein convertase subtilisin/kexin type 9 geneE670G polymorphism and serum lipid levels in the Guangxi Bai Ku Yao and Han populations

Background The association of E670G polymorphism in the proprotein convertase subtilisin/kexin type 9 (PCSK9) gene and serum lipid profiles is inconsistent in dif- ferent ethnic groups.Bai Ku Yao is a special subgroup of the Yao minority in China.The present study was undertaken association of PCSK9 E670G polymorphism and several environmental factors with serum lipid levels in the Guangxi Bai Ku Yao and Han populations.Methods A total of 649 subjects of Bai Ku Yao and 646 participants of Han Chinese were randomly selected from our previous stratified randomized cluster samples.Genotyping of the PCSK9 E670G polymorphism was performed by polymerase chain reaction and restriction fragment length polymorphism combined with gel electrophoresis,and then confirmed by direct sequencing. Results The levels of serum total cholesterol(TC),high-density lipoprotein cholesterol(HDL-C),low-density lipoprotein cholesterol(LDL-C) and apolipoprotein(Apo) AI were lower in Bai Ku Yao than in Han(P【0.01 for all).The frequency of A and G alleles was 98.00%and 2.00%in Bai Ku Yao,and 95.20%and 4.80%in Han(P【0.01);respectively. The frequency of AA,AG and GG genotypes was 95.99%,4.01%and 0%in Bai Ku Yao,and 91.02%, 8.36%and 0.62%in Han(P【0.01);respectively.There were also significant differences in the genotypic and allelic frequencies between n and the ratio of ApoAI to ApoB in Han Chinese but not in Bai Ku Yao were different between the AA and AG/GG genotypes(P【0.05 for all).The G allele carriers had higher serum HDL-C and higher ApoAI to ApoB ratio than the G allele noncarriers.When serum lipid parameters in Han were analyzed according to sex,the G allele carriers had higher serum HDL and ApoAI levels in males (P【0.05),and lower ApoB level and higher ApoAI to ApoB ratio in females(P【0.05 for all).Multiple linear regression analysis showed that serum HDL-C levels were correlated with genotypes in both ethnic groups(P【0.05 each).Serum lipid parameters were also correlated with sex,age,body massindex,alcohol consumption,cigarette smoking,and blood pressure in both ethnic groups(P【0.05-0.001).Conclusions These results suggest that the PCSK9 E670G polymorphism is mainly associated with some serum lipid parameters in the Han population,both gender show different relations to different serum lipid parameters.The G allele carriers might have higher serum lipid profiles than the G allele noncarriers. ormal LDL-C(≤3.20 mmol/L) and high LDL-C subgroups (】 3.20 mmol/L,P【0.01;respectively) in Bai Ku Yao, and between normal ApoB(≤1.14 g/L) and high ApoB subgroups(】 1.14 g/L,P 【 0.01;respectively) in Han.

Association of methylenetetrahydrofolate reductase C677T polymorphism and serum lipid levels in the Guangxi Bai Ku Yao and Han populations

Objectives The association of methylenetetrahy-drofolate reductase(MTHFR) gene polymorphism and serum lipid profiles is still controversial in diverse ethnics.Bai Ku Yao is an isolated subgroup of the Yao minority in China. The aim of the present study was to eveluate the association of MTHFR C677Tpolymorphism and several environmental factors with serum lipid levels in the Guangxi Bai Ku Yao and Han populations.Methods A total of 780 subjects of Bai Ku Yao and 686 participants of Han Chinese were randomly selected from our previous stratified randomized cluster samples.Genotyping of the MTHFR C677T was performed by polymerase chain reaction and restriction fragment length polymorphism combined with gel electrophoresis,and then confirmed by direct sequencing.Results The levels of serum total cholesterol(TC),high-density lipoprotein cholesterol (HDL-C),low-density lipoprotein cholesterol(LDL-C), apolipoprotein(Apo) AI and ApoB were lower in Bai Ku Yao than in Han(P【0.05-0.001).The frequency of C and T alleles was 77.4%and 22.6%in Bai Ku Yao,and 60.9%and 39.1%in Han(P【0.001);respectively.The frequency of CC,CT and TT genotypes was 58.7%,37.3%and 4.0%in Bai Ku Yao,and 32.6%,56.4%and 11.0%in Han(P【 0.001);respectively.The levels of TC and LDL-C in both ethnic groups were significant differences among the three genotypes(P【0.05-0.01).The T allele carriers had higher serum TC and LDL-C levels than the T allele noncarriers. The levels of ApoB in Han were significant differences among the three genotypes(P【0.05).The T allele carriers had higher serum ApoB levels as compared with the T allele noncarriers. The levels of TC,TG and LDL-C in Bai Ku Yao were correlated with genotypes(P【0.05-0.001),whereas the levels of LDL-C in Han were associated with genotypes(P【 0.001).Serum lipid parameters were also correlated with sex, age,body massindex,alcohol consumption,cigarette smoking, and blood pressure in the both ethnic groups.Conclusions The differences in serum TC,TG,LDL-C and ApoB levels between the two ethnic groups might partly result from different genotypic and allelic frequencies of the MTHFR C677Tor differentMTHFR gene-enviromental interactions.

Relationship between the low density lipoprotein receptor gene polymorphism and serum lipid levels in the Guangxi Bai Ku Yao population

Objectives Bai Ku Yao(White-trousers Yaos)is a special branch of Yao minority in China.They are now living in both Lihu and Baxu villages,Nandan County, Guangxi,China.The population size is about 30,000.The special customs and culture of Bai Ku Yao,including their special clothing,intra-ethnic marriages and alcohol intake are still completely conserved to the present day.In previous epidemiologic studies,we found that the serum lipid levels and the prevalence of hyperlipidaemia were lower in Bai Ku Yao than in Han Chinese from the same region.This ethnic difference in serum lipid profiles is still not well known.We hypothesized that there may be significant differences in some genetic polymorphismsssociation of low density lipoprotein receptor (LDL-R) genepolymorphism and several environmental factors with serum lipid levels in the Guangxi Bai Ku Yao and Han populations.Methods A total of 1024 subjects of Bai Ku Yao and 792 participants of Han Chinese were stud- ied by a stratified randomized cluster sampling.Epidemiological survey was carried out using internationally standardized methods.Information on demographics,socioeconomic status, and lifestyle factors was collected with standardized questionnaires. The height,weight,waist circumference,blood pressure, and serum total cholesterol(TC),triglyceride(TG), high-density lipoprotein cholesterol(HDL-C),low-density lipoprotein cholesterol(LDL-C),apolipoprotein(Apo) A1, and ApoB were measured.Body massindex(BMI,kg/m2) was calculated.Genotyping of the LDL-RAvaⅡwas performed by polymerse chain reaction and restriction fragment length polymorphism combined with gel electrophoresis,and then confirmed by direct sequencing.Results(l)The height,weight,serum TC,HDL-C,LDL-C,ApoAl levels and the ratio of ApoAl to ApoB were lower in Bai Ku Yao than in Han Chinese(P【0.01 for all),whereas the percentage of subjects who consumed alcohol or smoked cigarettes was higher in Bai Ku Yao than in Han Chinese(P【0.01 for each).(2) The frequency of A+ allele in Bai Ku Yao was 34.5%,and the frequencies of A-A-,A-A+ and A+A + genotypes were 42.6%,45.9%and 11.5%;respectively. The frequency of A+ allele in Han Chinese was 19.3%(P【0.001),and the frequencies of A-A-,A-A + and A+A+ genotypes were 64.9%,31.6%and 3.5%(P【0.001);respectively. The frequencies of A-A-,A-A+ and A+A+ genotypes in Bai Ku Yao were significant difference between males and females,between normal TC and high TC subgroup, and between normal LDL-C and high LDL-C subgroup (P【0.05 for all),whereas the frequencies of A- and A+ ? alleles in Han Chinese were significant difference between males and females(P【0.05).(3) Serum LDL-C levels in Bai Ku Yao were significant difference among the A-A-, A-A+ and A+A+ genotypes(P【0.05),the A+ carriers had higher serum LDL-C levels.Serum HDL-C levels in Han Chiese were significant difference among the A-A-,A-A + and A+A+ genotypes(P【0.01),the A+ carriers had higher serum HDL-C levels.(4) After adjusting other factors,the prevalence of LDL-C abnormality was still higher in Han Chiese than in Bai Ku Yao.The prevalence of TC abnormality in Han Chinese was almost twice high as in Bai Ku Yao. The age and diet were common risk factor for TC abnormality. No effect of AvaⅡgenotype or alcohol consumption on the TC abnormality was found,but the combination of geno-type and alcohol consumption can increase the prevalence of TC abnormality[Exp(B) =(1.154)].Age was negatively cor- related with TG level.Conclusions Serum TC and LDL-C levels were lower in Bai Ku Yao than in Han Chinese.There were significant differences in the AvaⅡallele and genotype frequencies between the he A+ carriers in Bai Ku Yao had higher serum LDL-C levels,whereas the A+ carriers in Han had higher serum HDL-C levels.Interactions between alcohol consumption or cigarette smoking and the LDL-R AvaⅡgenotype were also observed.The differences in the serum lipid profiles between the two ethnic groups might partly result from different genotypic frequency of LDL-R AvaⅡpolymorphism or differentgene-enviromental interactions.Bai Ku Yao and Han population,the frequency of A + allele was higher in Bai Ku Yao than in Han.T between the two ethnic groups.Therefore,the aim of the present study was to detect the

Peroxisome proliferator-activated receptor delta+294T>C polymorphism and serum lipid levels in the Guangxi Bai Ku Yao and Han populations

Objectives The association of peroxisome prolif-erator -activated receptor delta(PPARD) +294T】C polymorphism and serum lipid levels is inconsistent in several previous studies.Bai Ku Yao is an isolated association of PPARD +294T】C(rs2016520) polymorphism and several environmental factors with serum lipid levels in the Guangxi Bai Ku Yao and Han populations.Methods A total of 609 subjects of Bai Ku Yao and 573 participants of Han Chinese were randomly selected from our previous stratified randomized cluster samples.Genotyping of the PPARD +294T】C polymorphism was performed by polymerase chain reaction and restriction fragment length polymorphism combined with gel electrophoresis, and then confirmed by direct sequencing.Results The levels of serum total cholesterol(TC),high-density lipoprotein cholesterol(HDL-C),apolipoprotein(Apo) AI and ApoB were lower in Bai Ku Yao than in Han(P【0.001 for all).The frequency of T and C alleles was 77.50%and 22.50%in Bai Ku Yao,and 72.43%and 27.57%in Han (P【0.01);respectively.The frequency of TT,TC and CC genotypes was 60.59%,33.83%and 5.53%in Bai Ku Yao, and 52.18%,40.50%and 7.32%in Han(P【0.05);respectively. The levels of LDL-C,ApoB and the ratio of ApoAI to ApoB in Bai Ku Yao were different among the three genotypes in females but not in males(P【0.05 for all).The subjects with TT and TC genotypes had lower serum LDL-C and ApoB levels and higher the ratio of ApoAI to ApoB than the CC genotype in females.The levels of TC and ApoB in the total Han population were different among the three genotypes (P【0.05 for all).The C allele carriers had higher serum TC and ApoB levels than the C allele noncarriers.When serum lipid levels were analyzed according to sex,the difference in serum TC levels in Han was significant in males(P【0.01) but not in females,whereas the difference in serum ApoB levels was significant in females(P【0.05)but not in males. Serum TC and ApoB levels were correlated with genotypes in Han(P【0.05 for each) but not in Bai Ku Yao.Serum lipid parameters were also correlated with sex,age,body massindex, alcohol consumption,cigarette smoking,and blood pressure in both ethnic groups.Conclusions These results suggest that the association of PPARD +294T】C polymorphism and serum lipid levels is different between the Bai Ku Yao and Han populations.The discrepancy between the two ethnic groups might partly result from different PPARD +294T】C polymorphism or PPARD gene-enviromental interactions,subgroup of the Yao minority in China.

Association of the LIPG 584C>T polymorphism and serum lipid levels in the Guangxi Bai Ku Yao and Han populations

Objectives Endotheliallipase(EL) is a major determinantof high-density lipoprotein-cholesterol(HDL-C) metabolism,but the association of endothelial lipase gene (LIPG) polymorphism and serum HDL-C levels is scarce and conflicting in diverse populations.Bai Ku Yao is an isolated subgroup of the Yao minority in China.This study was designed to detect the association of LIPG 584C】T(rs2000813) polymorphism and several environmental factors with serum lipid levels in the Guangxi Bai Ku Yao and Han populations. Methods A total of 645 subjects of Bai Ku Yao and 638 participants of Han Chinese were randomly selected from our previous stratified randomized cluster samples.Genotyping of the LIPG584C】T was performed by polymerse chain reaction and restriction fragment length polymorphism combined with gel electrophoresis,and then confirmed by direct sequencing. Results The levels of serum total cholesterol(TC),HDL-C, low-density lipoprotein cholesterol(LDL-C) and apolipoprotein (Apo) AI and ApoB were lower in Bai Ku Yao than in Han(P【0.05-0.001).The frequency of C and T alleles was 73.5%and 26.5%in Bai Ku Yao,and 67.9%and 32.1%in Han(P【0.01).The frequency of CC,CT and TT genotypes was 50.4%,46.2%and 3.4%in Bai Ku Yao,and 41.4%, 53.1%and 5.5%in Han(P【0.01);respectively.Serum HDL-C levels in both ethnic groups were different among the three genotypes(P【0.05 for each).Serum TC levels in both ethnic groups were also different between CC and CT/TT types(P【 0.05 for each).The T allele carriers had higher serum HDL-C and TC levels than the T allele noncarriers.Multivariate logistic regression analysis showed that the levels of HDL-C and ApoB were correlated with genotype in Bai Ku Yao(P【 0.05 for each),whereas the levels of TC and HDL-C were associated with genotype in Han Chinese(P【0.05 and P【 0.01).Serum lipid parameters were also correlated with gender, age,weight,body massindex,alcohol consumption, cigarette smoking,and blood pressure in the both ethnic groups.Conclusions The frequency of LIPG 584Tallele is lower in the Bai Ku Yao than in the Han populations.The LIPG 584Tallele is associated with serum HDL-C and TC levels.The differences in serum lipid profiles between the two ethnic groups might partly result from different genotypic and allelic of LIPG 584C 】T or different LIPG-enviromental interactions.

南丹白裤瑶服饰文化意蕴及制作工艺特征

服饰文化不仅凝结了白裤瑶人特殊的民族情感、民族信仰,也反映了白裤瑶人的价值观、生存观,服饰文化研究是研究白裤瑶人传统文化的重要途径。文章运用文献资料法、田野调查法、逻辑分析法,对南丹白裤瑶族服饰文化意蕴及制作工艺特征展开深入研究,研究认为,白裤瑶服饰文化是白裤瑶人的精神纽带,它不仅强化了族群的团结和认同,也使每个族人在其中找到了归属感和文化自信。

南丹白裤瑶民族服饰的审美取

白裤瑶服饰有着鲜明的地域特征和浓郁的生活气息,展现了白裤瑶人独特的审美情趣。为了进一步了解白裤瑶人的服饰审美取向,通过文献分析和实物考察,文章着重从造型、色彩、纹样等方面介绍了白裤瑶服饰,并探索南丹白裤瑶民族服饰美学的价值,希望借此推动白裤瑶传统服饰文化的传承和发展。

白裤瑶铜鼓舞价值研究

采用文献资料法、访谈法和调查法,对白裤瑶铜鼓舞的起源、铜鼓舞与白裤瑶的砍牛祭习俗等进行研究,着重探讨了白裤瑶铜鼓舞的社会价值。结果表明:铜鼓舞具有传承民族文化、增强民族凝聚力、健身娱乐、表演、保护与自卫以及促进地方经济发展等价值。

云南白药治疗软组织损伤的Meta分析

目的:评价云南白药治疗软组织损伤的疗效及安全性。方法:计算机检索中国生物医学文献数据库CBMdi-sc(1978—2009)等8个数据库;手工检索1995—2009年10种中文杂志。纳入文献质量采用Jadad评分,资料分析采用Cochrane协作网提供的RevMan 5.0.2软件。结果:纳入9个研究,共计2140例患者,有4个高质量研究(评分为3～5分)。Meta分析结果表明,云南白药内服治疗软组织损伤疗效与止痛的西药内服作用相似(P=0.48),局部外用则优于西药内服(P=0.002),常作为阳性对照药物与内服或外用的中药制剂比较,其不良反应发生较少。结论:云南白药内服或外用治疗软组织损伤有效,一般疗程为7～10天,因为纳入的研究样本数量少,研究有待更多的高质量的临床试验验证。

复方血栓通联合云南白药治疗玻璃体积血疗效分析

目的评估复方血栓通联合云南白药治疗玻璃体积血的疗效及可行性。方法2005年12月至2007年7月我院收治的58例(58只眼)玻璃体积血,随机分成四组,分别给予治疗。Ⅰ组为常规治疗组(13只眼);Ⅱ组为云南白药治疗组(14只眼);Ⅲ组为复方血栓通胶囊治疗组(14只眼);Ⅳ组为Ⅱ、Ⅲ联合疗法组(17只眼)。根据如下疗效判断标准:①治愈:最佳矫正视力提高≥5行不伴玻璃体积血;②显效:最佳矫正视力提高≥3行,玻璃体积血基本干净,无纤维条索形成;③有效:最佳矫正视力提高≥1行,伴有限的玻璃体纤维条索形成;④未愈:最佳矫正视力无提高,伴显著的玻璃体纤维条索形成或并发增生性玻璃体视网膜病变或新生血管性青光眼。结果随访3个月后,49只眼最佳矫正视力提高,总有效率77.59%,显效率56.90%。Ⅰ组与Ⅱ、Ⅲ、Ⅳ组间差别有统计学意义,Ⅱ组与Ⅲ组间无统计学意义,Ⅱ组与Ⅳ组、Ⅲ组与Ⅳ组有统计学意义的差别。6只眼出现玻璃体增生纤维条索牵引,5只眼玻璃体积血浓厚,1只眼出现新生血管性青光眼。结论复方血栓通联合云南白药治疗玻璃体积血的疗效显著,能明显消除积血,改善患者视力。

小窑湾高密度贝类筏式养殖对浮游植物群落的影响

20 0 0年 3～ 1 1月小窑湾水域浮游植物海上调查结果表明 ,在高密度贝类筏式养殖区随着贝类摄食强度的增强 ,浮游植物数量、种类都大量减少 ,其年平均细胞数量偏低 ,仅为 56× 1 0 4/m3 ,种类44种 ;高密度贝类筏式养殖区的浮游植物群落多样性指数偏低 ,丰度指数偏低 。

云南白药对血小板的释放与代谢反应的影响

目的:研究云南白药对血小板颗粒内容物释放和代谢反应的影响,探讨其止血和抗炎机理。方法:87例正颌外科手术患者随机分为试验组(43例)和对照组(44例),分别在术前3日口服云南白药胶囊和安慰剂胶囊;采集术前和术中静脉血,用酶联免疫吸附法测定手术开始前和术中血浆11-去氢-血栓烷B2(11-Dehydro-Thromboxane B2,11-DH-TXB2)水平;分离和固定血小板,观察血小板超微结构和颗粒内容物的改变。结果:术前实验组血浆11-DH-TXB2(58.83±15.89)ng/L,对照组(69.54±14.43)ng/L,两组比较差异无统计学意义;术中实验组11-DH-TXB2(90.41±38.97)ng/L,对照组(131.78±78.92)ng/L,两组差异有统计学意义;实验组术中血小板内α-颗粒数目减少,两组比较具有统计学差异。结论:云南白药抑制血小板11-DH-TXB2的生成,反映了血栓烷A2生成减少,不会增加手术区域微血管的收缩,可能有利于改善术后局部血液循环;在手术刺激诱导下云南白药可促进血小板颗粒内容物的释放,有利于提高术中凝血功能,减少手术中出血量。

云南白药治疗消化性溃疡114例疗效观察

对１９２例经胃镜确诊的消化性溃疡患者应用云南白药及雷尼替丁进行治疗观察，并与硫糖铝片、雷尼替丁治疗作对照，观察其对溃疡愈合、并发症、ＨＰ的疗效。结果显示云南白药疼痛缓解率明显高于对照组（Ｐ＜０．０１）；止血效果也明显高于对照组（Ｐ＜０．０１）；溃疡愈合２组间差异无显著性意义（Ｐ＞０．０５）；ＨＰ阴转率较低。认为云南白药治疗消化性溃疡在缓解疼痛和止血方面有肯定疗效，促进溃疡愈合与粘膜保护剂效果相近，对ＨＰ有否抑菌作用待进一步研究。

云南白药对体外培养人牙周膜成纤维细胞C-fos、C-jun基因表达的影响

目的研究云南白药水溶液对牙周膜成纤维细胞C-fos、C-jun基因表达的影响,探讨云南白药水溶液促进人牙周膜成纤维细胞（HPDLFs）增殖和成骨分化的可能机制.方法原代培养HPDLFs,取第4~6代细胞用于实验.分为空白对照组,云南不同浓度云南白药水溶液组,阳性对照组.各组细胞与云南白药水溶液共培养4h,采用反转录聚合酶链反应检测C-fos和C-jun m RNA的表达.结果 RT-PCR的结果说明,与空白对照组相比,云南白药水溶液能促进HPDLFs细胞C-fos和C-jun m RNA的表达.且促进作用呈浓度依赖性,与对照组比较,各组差异有统计学意义（P〈0.05）.结论云南白药水溶液能够上调HPDLFs中C-fos、C-jun的表达.云南白药水溶液可能通过上调C-fos、C-jun的表达促进HPDLFs的增殖和成骨分化,促进骨形成.

马齿苋合剂治疗实验性皮肤缺失性创伤的效果观察

目的 考查马齿苋合剂治疗模式动物皮肤缺失性创伤的效果。方法 采收培育的荷兰马齿苋鲜草,经粗磨过滤方法制备马齿苋有效成分混合制剂,配以细叶杜香、波斯菊、蜂蜜等中药成分,配以相应的赋形剂,制成外用中药合剂。选取纯白家兔20只和Balb/c小鼠30只,分别随机分组,设马齿苋合剂组、云南白药（阳性对照）组和丁二醇阴性对照组,于背部以外科手术法制造皮肤缺损性创口,施药（施药剂量：家兔20mg/只、小鼠10mg/只）,每天观测治疗效果。结果 马齿苋合剂组与云南白药组相比,创伤创缘的向心性聚缩速度平均慢1-2d,肉芽组织形成及上皮再生情况差异无统计学意义（P〉0.05）,但明显优于阴性对照组（P〈0.05）。结论 马齿苋合剂能明显促进实验动物皮肤缺损性创伤的愈合。

云南白药治疗七叶皂苷钠所致静脉炎的临床效果观察

目的探讨云南白药治疗七叶皂苷钠所致静脉炎的临床效果。方法 120例静脉炎患者,采用随机数字的方法分为对照组和试验组各60例,对照组采用常规治疗,试验组在常规治疗的基础上局部外敷云南白药,观察两组临床治疗效果。结果试验组的总有效率(95.0%)明显高于对照组(70.0%),住院时间短于对照组,住院费用少于对照组,护理满意度明显高于对照组,差异均有统计学意义(P<0.01)。结论对于七叶皂苷钠所致静脉炎,常规治疗的基础上局部外敷云南白药,临床效果显著,可降低患者的住院时间和住院费用,提高患者对护理质量的满意度,使优质护理服务更专业。

彝缅语言与汉语、苗瑶语、壮侗语、白语的同源联系

彝缅语言与汉语、藏缅语、壮侗语等十几种语言有语音联系这是一个语法事实。一组有同源联系的基本词,可作为汉语、藏缅语、苗瑶语、壮侗语在历史上有同源联系的例证。可看到从语音、词汇、语法方面提供的白语系属的语言事实,并在多种语言声调事实的比较中再声调的产生发展受语言自身内部机制的制约,外来影响只能顺应它,不能改变它。

归白药膜治疗黄褐斑、痤疮222例临床观察

目的：观察归白药膜对黄褐斑、痤疮临床治疗效果及作用机理。方法：选择痤疮137例、黄褐斑85例为治疗组，治疗组采用归白药膜外用，2至3天使用一次；对照组：黄褐斑采用3％氢醌霜和单纯面膜，痤疮采用5％硫黄霜外用。结果：治疗组痤疮总有效率86.13％，对照组总有效率38．46％；治疗组黄褐斑总有效率89．41％，对照组总有效率20％。治疗组和对照组相比，有显著性差异（P＜0．01）。结论：归白药膜疗效明确，具有使用和携带方便，而无明显副作用，实为理想的治疗和美容用品，值得临床推广应用。

云南白药胶囊对C518大鼠膝关节退变软骨细胞增殖和COL-Ⅱ、MMP-13表达的影响

目的:检测云南白药胶囊对C518大鼠膝关节退变软骨细胞增殖和COL-Ⅱ、MMP-13表达的影响。方法:用MTT法检测云南白药胶囊对C518大鼠膝关节退变软骨细胞增殖的影响,并对云南白药胶囊干预后的C518大鼠膝关节退变软骨细胞进行COL-Ⅱ、MMP-13免疫组化染色,同时观察其干预效果。结果:在药物对细胞增殖的影响上,在同一时间点的不同浓度中,各组之间都有显著性差异(P<0.01)。在同一时间点的云南白药组、氨糖美辛组中,各浓度之间都有显著性差异(P<0.01)。在生理盐水组中,各浓度之间都无显著性差异(P>0.05)。在COL-Ⅱ、MMP-13表达水平上,各组之间都有显著性差异(P<0.01)。结论:云南白药胶囊对C518大鼠膝关节退变软骨细胞有促进增殖的作用,并且细胞对药物浓度有依赖作用。云南白药胶囊能调节C518大鼠膝关节退变软骨细胞中COL-Ⅱ、MMP-13的表达水平,从而延缓KOA的病变发展。

从云南白药配方在美国公开看我国中药知识产权保护

云南白药是我国中药保护品种．2010年底，美国FDA要求云南白药在美分销商提供云南白药膏和云南白药酊的组分．并在FDA网站上公开。本文结合对这一事件的介绍．对我国中药知识产权保护法律法规进行介绍和分析。目前我国各类中药知识产权保护法律法规虽然比较齐全，但面对国际知识产权的竞争还不够完备．仍需进一步完善。我国中药生产企业也应注重提高中药研究的技术含量，同时注意对自身知识产权的保护，积极参与国际竞争。