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糖胺多糖

糖胺多糖的相关文献在1989年到2021年内共计96篇,主要集中在外科学、基础医学、内科学 等领域,其中期刊论文88篇、会议论文2篇、专利文献84840篇;相关期刊62种,包括中国骨伤、中国老年学杂志、中国美容整形外科杂志等; 相关会议2种,包括2000中国药学会学术年会、吉林省第四届科学技术学术年会等;糖胺多糖的相关文献由242位作者贡献,包括卫小春、王传家、丁娟等。

糖胺多糖—发文量

期刊论文>

论文:88 占比:0.10%

会议论文>

论文:2 占比:0.00%

专利文献>

论文:84840 占比:99.89%

总计:84930篇

糖胺多糖—发文趋势图

糖胺多糖

-研究学者

  • 卫小春
  • 王传家
  • 丁娟
  • 李凯
  • 林雪松
  • 邵越峰
  • 侯立中
  • 李鹏翠
  • 杨述华
  • 徐无忌
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 覃李玲; 严妍; 余卓; 覃巧玲; 黎伟; 刘莉
    • 摘要: 背景:羟基磷灰石具有良好的生物相容性和生物活性,具有促进干细胞黏附、增殖和骨诱导分化的作用.目的:观察羟基磷灰石涂层钛片对大鼠骨髓间充质干细胞增殖、软骨性分化的影响.方法:采用电沉积法在钛金属基底表面沉积羟基磷灰石涂层(电沉积时间分别为30 min,1.5 h),用场发射扫描电子显微镜观察涂层形态,X射线衍射分析其化学组成.取4只3周龄SD雄性大鼠(购于湖北省实验动物研究中心)双侧股骨的骨髓,采用全骨髓贴壁法培养骨髓间充质干细胞,将第3代细胞接种于有涂层钛片及没有涂层纯钛片上,并进行4周的成软骨诱导分化.通过CCK-8试剂盒分析羟基磷灰石涂层对大鼠骨髓间充质干细胞增殖的影响,二甲基亚甲基蓝比色法检测各组细胞糖胺多糖含量,RT-PCR法检测各组细胞软骨相关基因的表达,评价各组骨髓间充质干细胞的成软骨能力.结果与结论:①羟基磷灰石涂层均匀分布在钛基底上,大小结构较一致,X射线衍射图谱与羟基磷灰石标准峰基本吻合;②羟基磷灰石涂层促进骨髓间充质干细胞增殖,羟基磷灰石涂层亦表现了比空白钛片组具有更好的生物活性;③羟基磷灰石涂层组较空白钛片组产生了更多的糖胺多糖,差异有显著性意义(P<0.01);④羟基磷灰石涂层组软骨相关基因(Sox9、多聚蛋白聚糖、Ⅱ型胶原、Ⅹ型胶原)的相对表达量显著高于空白钛片组(P<0.05),电沉积时间为1.5 h的羟基磷灰石涂层组的Ⅱ型胶原表达量明显高于电沉积时间30 min羟基磷灰石涂层组和空白钛片组(P<0.01);⑤结果表明,应用电化学沉积技术可以在钛片上制备均匀的羟基磷灰石涂层,且该涂层可以促进大鼠骨髓间充质干细胞增殖,具有良好的生物相容性,有利于骨髓间充质干细胞向软骨方向分化.
    • 覃李玲1; 严妍1; 余卓1; 覃巧玲1; 黎伟1; 刘莉1
    • 摘要: 背景:羟基磷灰石具有良好的生物相容性和生物活性,具有促进干细胞黏附、增殖和骨诱导分化的作用。目的:观察羟基磷灰石涂层钛片对大鼠骨髓间充质干细胞增殖、软骨性分化的影响。方法:采用电沉积法在钛金属基底表面沉积羟基磷灰石涂层(电沉积时间分别为30 min,1.5 h),用场发射扫描电子显微镜观察涂层形态,X射线衍射分析其化学组成。取4只3周龄SD雄性大鼠(购于湖北省实验动物研究中心)双侧股骨的骨髓,采用全骨髓贴壁法培养骨髓间充质干细胞,将第3代细胞接种于有涂层钛片及没有涂层纯钛片上,并进行4周的成软骨诱导分化。通过CCK-8试剂盒分析羟基磷灰石涂层对大鼠骨髓间充质干细胞增殖的影响,二甲基亚甲基蓝比色法检测各组细胞糖胺多糖含量,RT-PCR法检测各组细胞软骨相关基因的表达,评价各组骨髓间充质干细胞的成软骨能力。结果与结论:①羟基磷灰石涂层均匀分布在钛基底上,大小结构较一致,X射线衍射图谱与羟基磷灰石标准峰基本吻合;②羟基磷灰石涂层促进骨髓间充质干细胞增殖,羟基磷灰石涂层亦表现了比空白钛片组具有更好的生物活性;③羟基磷灰石涂层组较空白钛片组产生了更多的糖胺多糖,差异有显著性意义(P<0.01);④羟基磷灰石涂层组软骨相关基因(Sox9、多聚蛋白聚糖、Ⅱ型胶原、Ⅹ型胶原)的相对表达量显著高于空白钛片组(P<0.05),电沉积时间为1.5 h的羟基磷灰石涂层组的Ⅱ型胶原表达量明显高于电沉积时间30 min羟基磷灰石涂层组和空白钛片组(P<0.01);⑤结果表明,应用电化学沉积技术可以在钛片上制备均匀的羟基磷灰石涂层,且该涂层可以促进大鼠骨髓间充质干细胞增殖,具有良好的生物相容性,有利于骨髓间充质干细胞向软骨方向分化。
    • 边森; 刘贵艳; 李凯; 卫小春; 徐刚; 邵越峰
    • 摘要: Objective To explore the effects of cyclic tensile strain (CTS) with varied intensity on glycosaminoglycan (GAG) synthesis of chondrocytes in primary cultured rabbits' knees.Methods Articular cartilages of two knees in six New Zealand rabbits (at the age of one month) were obtained through aseptic surgery.Chondrocytes were resolved and isolated from articular cartilages by using 0.4% pronase and 0.025% 11 collagenase.Then chondrocytes from the same rabbit were divided into three parts and inoculated separately on three BioFlex culture plates.After this,stimulation of cyclic tensile strain (sinusoidal wave,0.3 Hz,6 h/d)with different intensity (0%,5% and 15%) was loaded to chondrocytes in monolayer cultured primary rabbits by means of a Flexercell 5 000 strain unit.The morphology of the cells was detected using inverted microscope at 24,36,48,and 60 hours of loaded CTS respectively.In the meanwhile,supernatants were drawn separately and GAG concentration was measured with Alcian blue precipitation.Finally,variance analysis of repeated measurement data was adopted to compare the variation of GAG concentrations in supernatants among CTS stimulation groups with different intensity.Results After cellular mechanical loading,it could be observed that chondrocytes exhibited a morphologic change from polygon to spindle shape,arranging perpendicularly along the radius of the cultured plates.Following the raising of strain intensity,GAG concentrations in supernatants were on the rise in proper order,with average concentration in each group being [(4.7 ± 1.3),(6.3 ± 1.1) and (8.0 ± 1.8) ng/ml,F =15.970,P =0.000] respectively.Consistently,at the same time point,there were significant differences of GAG concentrations in supernatants anmong the three groups,with average concentration of 24 hour [(2.3 ± 0.5) vs.(3.3±0.6) vs.(3.9±0.6) ng/ml,F=6.062,P=0.036],36 hour [(4.0±0.7) vs.(4.6± 0.8) vs.(6.8±0.2) ng/ml,F=16.720,P=0.004],48 hour [(5.5±0.7) vs.(6.8±0.7) vs.(8.5±0.8) ng/ml,F=12.570,P=0.007],and 60 hour [(6.9 ± 1.2) vs.(10.8 ±1.3) vs.(13.0 ± 1.1) ng/ml,F =19.790,P =0.002] respectively.Meanwhile,there was a significant difference between two groups by using L-S-D method.In pace with the increase of total loading time,GAG concentrations in supernatants were gradually multiplied,concentration in each group being [0% CTS group (2.3±0.5) vs.(4.0±0.7) vs.(5.5±0.7) vs.(6.9±1.2) ng/ml,F=4.640,P=0.037],[5% CTS group (3.3±0.6) vs.(4.6±0.8) vs.(6.8±0.7) vs.(10.8±1.3) ng/ml,F=23.580,P=0.000],and [15% CTSgroup (3.9±0.6) vs.(6.8±0.2) vs.(8.5±0.8) vs.(13.0±1.1) ng/ml,F =9.638,P =0.005] separately.It could be stated that there exists an interaction between total loading time and loading intensity.This suggests that the longer,the total loading time,the bigger,the values of GAG concentrations in supernatants comparing with those in control group.Conclusion CTS may promote GAG synthesis of chondrocyte in primary monolayer cultured rabbits' knees.The effects will increase along with the raising of strain intensity and duration.%目的 观察不同强度的循环动态拉伸(CTS)对原代培养的兔膝关节软骨细胞糖胺多糖(GAG)合成的影响.方法 1个月龄新西兰兔6只,无菌手术切取双膝关节软骨,采用0.4%Pronase酶和0.025%Ⅱ型胶原酶消化分离得到关节软骨细胞,来源于同一只兔的软骨细胞分为3部分,分别接种在3块BioFlex培养板上,通过Flexercell 5000系统对单层培养的兔膝软骨细胞施加CTS刺激,加载条件为0.3Hz正弦波形,时长为6 h/d,加载强度分别为0%、5%、15%的CTS刺激.于加载后24、36、48和60 h用倒置显微镜观察细胞形态,并分别抽取上清用阿尔新蓝染色沉淀法测量GAG浓度.采用重复测量资料的单因素方差分析比较不同强度CTS刺激组上清液中GAG浓度的差异.结果 细胞力学加载后可见周边部软骨细胞由多角形变为纺锤形,沿培养皿半径垂直方向排列.随拉伸强度的增加,上清中GAG浓度依次上升,各组总平均浓度分别为[(4.7±1.3)比(6.3±1.1)比(8.0±1.8) ng/ml],差异有统计学意义(F=15.970,P=0.000);同一时间点,随CTS拉伸强度的增大,上清液中GAG的含量逐渐增高,各时间点3组浓度分别为[24 h:(2.3±0.5)比(3.3±0.6)比(3.9 ±0.6)ng/ml;36 h:(4.0 ±0.7)比(4.6±0.8)比(6.8 ±0.2) ng/ml;48 h:(5.5±0.7)比(6.8±0.7)比(8.5±0.8)ng/ml;60 h:(6.9±1.2)比(10.8±1.3)比(13.0 ±1.1) ng/ml],且差异有统计学意义(F=6.062,P=0.036;F=16.720,P=0.004;F=12.570,P=0.007;F=19.790,P=0.002),同一采样时间采用组间LSD法两两比较差异均有统计学意义.随加载总时间增加,上清中GAG浓度逐渐增加,各组分别为[0% CTS组:(2.3±0.5)比(4.0±0.7)比(5.5±0.7)比(6.9±1.2) ng/ml;5% CTS组:(3.3±0.6)比(4.6±0.8)比(6.8±0.7)比(10.8±1.3)ng/ml;15% CTS组:(3.9±0.6)比(6.8±0.2)比(8.5±0.8)比(13.0±1.1)ng/ml],且差异有统计学意义(0% CTS组:F=4.640,P =0.037;5% CTS组:F=23.580,P=0.000;15% CTS组:F=9.638,P=0.005).且加载总时间与加载强度之间存在交互效应,时间越长,加载组上清中GAG浓度越大.结论 CTS可促进单层贴壁兔膝关节软骨细胞合成GAG,作用效果随拉伸强度和时间的增加而增大.
    • 李亮亮; 张志强; 郭娜; 赵浩亮; 王小虎; 卫小春
    • 摘要: Objective To observe the changes in cytoskeleton (CSK) and glycosaminoglycan (GAG) synthesis following passage culture of articular chondrocytes and the correlation between CSK and GAG.Methods Eight male New Zealand White rabbits (8-month-old) were sacrificed by air embolism.After the chondrocytes from their knee joints were isolated by enzymolysis method,monolayer culture was performed.The chondrocytes of primary passage (P0) and passages 1 & 2 (P1,P2) were inoculated into 24-well plates with round cover slips put at the bottoms.Cell climbing slices were fixed after attachment of chondrocytes.The CSK proteins,actin,vimentin,tubulin and vinculin were stained by immuuofluorescence antibody on P0,P1 and P2 cell climbing slices,respectively.The CSK morphology was observed by laser confocal scanning microscopy and the fluorescence intensities of CSK proteins were detected by the fluorescence intensity software.The medium was changed for each generation after cell fusion and the GAG concentrations in the supernatants were measured at 24,36,48,60 h after medium change by alcian blue method.Results The intermediate filament networks became loosen and the dense distributions surrounding the nucleus decreased;more microtubule processes formed at the cell periphery with passage.The fluorescence intensity of actin of P1 chondrocytes was significantly increased than that of P0 (P < 0.05),but there were no such significant differences between P0 and P2 or between P1 and P2 (P > 0.05).The fluorescence intensities of vimentin and tubulin were significantly decreased with passage respectively,and there were such significant differences between any two of P0,P1 and P2 (P < 0.05).The GAG concentrations in the supernatants were significantly decreased with passage at each time point,and there were such significant differences between any two of P0,P1 and P2 (P < 0.05).Conclusions Passage culture of articular chondrocytes may lead to changes in morphology and protein expression intensity of the main components of CSK,and accordingly to decreased synthesis amount of GAG,one of the extracellular matrix of chondrocytes,indicating the changed characteristics of chondrocytes after passage and a certain correlation between CSK and GAG.%目的 观察关节软骨细胞随传代细胞骨架(CSK)及糖胺多糖(GAG)合成量的变化,并探讨两者关系.方法 雄性8月龄新西兰白兔8只,空气栓塞处死,无菌酶解法分离双膝关节软骨细胞并行单层培养,取原代(P0)及传1、2代(P1、P2)的软骨细胞,分别接种于底部置有圆形盖玻片的24孔板中爬片并于细胞贴附后固定.以免疫荧光抗体对各代软骨细胞CSK染色,利用激光扫描共聚焦显微镜观察各代软骨细胞CSK形态并分别测定其CSK蛋白荧光强度.待每代细胞融合后,换无血清培养液,并于换液后12、24、36、48、60 h分别抽取上清液以阿尔新蓝法检测GAG浓度. 结果 软骨细胞随传代其中间纤维网状结构变松散且核周密集分布减少,而在细胞周边形成的微管突起增多.软骨细胞CSK蛋白荧光强度测定结果显示,P1软骨细胞肌动蛋白荧光强度较P0升高,差异有统计学意义(P<0.05),而P0与P2、P1与P2差异均无统计学意义(P>0.05);波形蛋白和微管蛋白荧光强度随传代逐渐下降,P0、P1、P2软骨细胞间两两比较差异均有统计学意义(P<0.05).软骨细胞在各个时间点的上清液GAG浓度均随传代逐渐下降,P0、P1、P2软骨细胞间两两比较差异均有统计学意义(P<0.05). 结论 软骨细胞随传代其CSK主要成分发生形态及蛋白表达强度的改变,同时其合成基质之一的GAG合成量也随之下降,表明软骨细胞传代后特性的变化,且二者可能存在一定关联.
    • 徐无忌; 杨康; 刘思华
    • 摘要: 背景:六味地黄丸作为补益肝肾名方,临床应用其治疗腰痛已取得良好的效果,而有关六味地黄丸治疗肾虚型腰痛的作用机制尚不明确.目的:观察六味地黄丸对兔椎间盘体外退变模型细胞外基质组分的影响,探讨六味地黄丸防治椎间盘退变的疗效.方法:将20只新西兰兔带终板的L1-L6椎间盘100个随机分为空白对照组、肿瘤坏死因子 α 组、p38-JNK/SAPK阻断组、六味地黄丸组、肿瘤坏死因子α+六味地黄丸组,每组20个.肿瘤坏死因子α组培养液中含10 mg/L肿瘤坏死因子α2μL,p38-JNK/SAPK阻断组培养液中含p38MAPK特异性阻断剂SB203580,JNK特异性阻断剂SP600125各20μmol/L 10μL,六味地黄丸组培养液中含体积分数为10%六味地黄丸血清,肿瘤坏死因子α+六味地黄丸组含10 mg/L肿瘤坏死因子α2μL和体积分数为10%六味地黄丸血清,分别于培养的第2,4,8,14天收集标本待测.结果与结论:在培养基中加入肿瘤坏死因子α能明显上调Ⅰ型胶原mRNA和蛋白的表达,下调糖胺多糖含量、硫酸软骨素/硫酸角质素比值、透明质酸含量,蛋白多糖mRNA和蛋白的表达、Ⅱ型胶原mRNA和蛋白的表达(P<0.05),六味地黄丸含药血清可部分对抗肿瘤坏死因子α所导致的改变,提示六味地黄丸可在一定程度上延缓了椎间盘退变.%BACKGROUND: Liuwei Dihuang Pills (LWPs), a famous Chinese prescription for replenishing the liver and kidney, have achieved good effect in the treatment of backache. However, the mechanism underlying LWPs treating backache with kidney deficiency is unclear. OBJECTIVE: To observe the effect of LWPs on extracellular matrix components of rabbit intervertebral disc degeneration models in vitro, and to explore the effect of LWPs in the prevention and treatment of intervertebral disc degeneration.METHODS: Totally 100 L1-6 intervertebral discs with endplate removed from 20 New Zealand rabbits were randomly divided into control, tumor necrosis factor α (TNF-α), p38-JNK/SAPK blocked, LWPs, and combination groups (n=20 per group). 2 μL of 10 mg/L TNF-α, 10 μL of 20 μmol/L SB203580 (specific inhibitor of p38MAPK) and SP600125 (inhibitor of JNK), 10% LWPs serum, 10% LWPs combined with 2 μL of 10 mg/L TNF-α were added into the medium of the corresponding group. Samples were collected at 2, 4, 6 and 14 days of culture. RESULTS AND CONCLUSION: The addition of TNF-α significantly upregulated the mRNA and protein expression levels of collagen type I, while significantly downregulated the levels of glycosaminoglycan and hyaluronic acid, chondroitin sulfate/keratan sulfate ratio, as well as the protein and mRNA expression levels of proteoglycan and collagen type Ⅱ (P < 0.05). LWPs could partly reverse the changes caused by TNF-α, indicating that LWPs can alleviate intervertebral disc degeneration to a certain extent.
    • 丁永清; 陈琦
    • 摘要: 目的 评估体内环境下转化生长因子β1 (TGF-β1)对自体移植肋软骨增殖及代谢的作用.方法 健康新西兰白兔18只(1月龄,体重1 kg),随机分为空白对照组、凝胶对照组、5 ng/mL TGF-β1凝胶组、10 ng/mL TGF-β1凝胶组、手术对照组、5 ng/mL TGF-β1溶液组、10 ng/mL TGF-β1溶液组,每组各3只.截取兔右侧第7、8、9根带软骨膜肋软骨共4段,按不同组别处理后移植于背部皮下.移植术后8周,取出移植或空白对照的肋软骨,行大体观察及软骨切片苏木素-伊红(HE)染色、甲苯胺蓝染色,在光学显微镜下观察软骨显微结构变化情况,并检测软骨内糖胺多糖(GAG)含量.结果 在本实验条件下,10 ng/mL TGF-β1凝胶组软骨细胞的增殖最活跃,GAG含量与空白对照组之间差异无统计学意义(P>0.05),但显著高于其他组,差异有统计学意义(P<0.05).结论 在体内环境下,TGF-β1能有效抑制幼年兔移植后软骨基质的降解,促进细胞增殖及外周基质的分泌,能明显抑制幼年兔移植后软骨细胞的凋亡、坏死,抑制软骨退行性变.10 ng/mL浓度较5 ng/mL浓度作用明显.TGF-β1与凝胶复合,可提高其疗效,可能与其缓慢释放、作用持久相关.
    • 赵司顺; 刘晓伟; 王胜; 张增山; 田云虎
    • 摘要: 目的 探讨椎体中注入骨水泥对骨质疏松兔软骨终板退变的影响.方法 选取35只健康雌兔,采用去势法制备骨质疏松模型.从中选取32只生长状况良好的骨质疏松兔,随机分为观察组和对照组,每组16只.观察组于L7椎体注入骨水泥约0.5 mL,对照组仅行后路椎体穿刺,不注入骨水泥,余处理同观察组.两组分别于术后4、8周各随机抽取8只骨质疏松兔,处死后取出L6/7椎间盘,并对L7软骨终板进行分离.光镜下观察软骨终板组织学特点并进行Mankin评分,免疫组化SP法检测Ⅱ型胶原表达,间苯三酚分光光度法检测糖胺多糖(GAG)表达.结果 两组软骨终板表层均有小裂隙出现,软骨血管呈纤维化;中、深层均有少量簇聚的软骨细胞和单个肥大的软骨细胞,部分出现潮线断裂或双重潮线,HE染色有失染现象.两组术后4、8周软骨终板组织Mankin评分、Ⅱ型胶原、GAG表达比较差异均无统计学意义(P均>0.05).结论 椎体内注入骨水泥不会引起骨质疏松兔邻近椎间盘软骨终板的退变.
    • 王乐; 徐无忌
    • 摘要: 背景:蛋白多糖、硫酸软骨素、硫酸角质素、透明质酸均是维持椎间盘正常结构的重要物质,影响整个椎间盘的生理功能。目的:观察六味地黄丸对兔椎间盘退变模型椎间盘蛋白多糖成分的影响,探讨六味地黄丸防治椎间盘退变的疗效。方法:将80只新西兰兔随机分为六味地黄丸组、模型组、假手术组、空白对照组,每组20只。模型组、六味地黄丸组予建立椎间盘退变动物模型;假手术组行相同手术入路进入腰椎,再依次缝合组织;六味地黄丸组给予六味地黄胶囊混悬液10 mg/kg灌胃,1次/d;模型组、假手术组、空白对照组灌予等量生理盐水,1次/d,自然喂养。于2,4,6,8周后每个时间点处死动物,每次每组处死5只。留取椎间盘标本,测量椎间盘细胞蛋白多糖成分。结果与结论:随着给药时间的延长,六味地黄丸能上调椎间盘退变模型中糖胺多糖含量、硫酸软骨素/硫酸角质素比值及透明质酸含量,从而稳定蛋白多糖含量,在一定程度上延缓椎间盘的退变。
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