羟基红花黄色素A对激素诱导骨髓间充质干细胞成脂分化的干预作用

目的 探讨激素性股骨头缺血坏死的发病机制及羟基红花黄色素A(HYSA)防治该病的作用机制. 方法 30天龄SD大鼠18只,体重(150±20)g.6只用于骨髓间充质干细胞取材培养、鉴定、MTT试验;12只用于骨髓间充质干细胞取材培养、干预.大剂量激素诱导体外培养的骨髓间充质干细胞成脂分化,在诱导成脂的同时给予不同浓度H...     

淫羊藿苷对大鼠骨髓间充质干细胞向成骨细胞分化的影响

目的:探讨淫羊藿苷对大鼠骨髓间充质干细胞成骨分化的影响。方法:采用差速贴壁法体外分离培养大鼠骨髓间充质干细胞,流式细胞仪鉴定表面标志。取第3代细胞加入10-6mol/L淫羊藿苷培养基,对照组仅加入等量普通培养基进行培养。通过镜下观察细胞形态,流式细胞仪测定细胞表面标志,碱性磷酸酶试剂盒测定诱导细胞碱性磷酸酶活性,组织化学染色观察钙化结节形成能力。结果:体外培养的细胞表达CD29、CD44、CD105、CD166。淫羊藿苷诱导组细胞碱性磷酸酶呈阳性反应并有钙化结节形成,而对照组未见钙化结节形成。结论:淫羊藿苷能够诱导大鼠骨髓间充质干细胞向成骨细胞分化,可视为一种良好的骨诱导活性因子。     

大鼠骨髓间充质干细胞原代培养及成骨成脂分化能力染色鉴定

目的：实验旨在建立一套简便有效的骨髓间充质干细胞原代培养、诱导分化及染色方法,观测骨髓间充质干细胞生物学特性,及其成骨、成脂分化潜能,为后续进行骨髓间充质干细胞基因修饰实验做好准备。方法本实验通过全骨髓培养法分离骨髓间充质干细胞,并用诱导分化培养液做定向诱导培养,观察骨髓间充质干细胞向成骨及成脂肪细胞分化过程中的细胞形态学变化,进行成骨成脂细胞染色鉴定,以探讨骨髓间充质干细胞的分离培养方法、生长规律及向成骨成脂细胞分化的条件。结果(1)通过全贴壁法成功进行了骨髓间充质干细胞原代及传代培养并绘制出第4代细胞生长曲线;(2)通过茜素红染色验证了骨髓间充质干细胞的成骨分化能力;(3)通过油红O染色验证骨髓间充质干细胞的成脂分化能力。结论全贴壁法提取的大鼠骨髓间充质干细胞经传代4次左右可达到一定纯度,在一定诱导条件下,经特定染色方法鉴定,可分化为成骨细胞,成脂细胞。     

骨髓间充质干细胞多方向分化潜能实验研究

目的:分离和培养兔骨髓间充质干细胞(bone marrow mesenchymal stem cells,BMSCs),并向多向诱导分化。方法:经贴壁筛选法获得单个核细胞。贴壁培养后,通过倒置显微镜进行细胞形态学观察,并采用流式细胞术进行分析。传至第3代后,分别进行成脂肪细胞、成骨细胞、成软骨细胞诱导,并进行鉴定。结果:骨髓间充质干细胞大小较为均匀,基本上呈梭形,传代培养后的细胞体积增大,成纤维样细胞逐渐增多。经反复传代纯化的BMSCs经诱导后分化为脂肪细胞、成骨细胞、软骨细胞。结论:兔骨髓间充质干细胞在体外培养具有多向分化潜能,可作为组织工程学种子细胞进行相关实验研究。     

骨髓间充质干细胞成骨分化的研究进展

骨髓间充质干细胞是一种多能干细胞,具备向成骨细胞、肌肉细胞、脂肪细胞、软骨细胞、成纤维细胞等多种细胞分化的能力,其来源较为丰富,异体移植也不会引发明显的排斥反应,因此被广泛应用于组织工程、干细胞移植、骨质疏松症以及骨折不愈合等多种疾病的治疗,成为骨科研究重点.了解骨髓间充质干细胞的分离培养方法及鉴定、成骨向分化诱导方式...     

BMP-14与bFGF联合诱导骨髓间充质干细胞向软骨分化的实验研究

目的 研究骨形态发生蛋白-14(BMP-14)和碱性成纤维细胞生长因子(bFGF)联合诱导大鼠骨髓间充质干细胞(BMSC)向软骨分化的协同作用.方法 采用密度梯度离心法与贴壁分离法相结合分离、纯化大鼠骨髓间充质干细胞,用含10%胎牛血清的L-DMEM培养至第3代作为种子细胞,对照组A组不加生长因子,实验组B、C、D组分别加入100 ng/ml BMP-14、10 ng/mlbFGF和100ng/ml BMP-14+10 ng/ml bFGF,培养24 h后各组间行细胞增殖比较,14 d后观察各组细胞形态学改变,各组间行Ⅱ型胶原免疫细胞化学染色和阿尔辛蓝染色.结果 培养14 d后,A、B、C、D 4组的Ⅱ型胶原细胞染色阳性率分别为(7.5210±3.7243)%、(40.8271±1.2787)%、(17.2818±1.4242)%、(60.5114±1.7634)%;阿尔辛蓝染结果 为:A组阴性,B、C组呈淡染,D组呈蓝色.结论 BMP-14和bFGF的联合应用较单个细胞因子可以明显诱导骨髓间充质干细胞向软骨细胞表型分化及促进细胞增殖.     

体外诱导人骨髓间充质干细胞定向肝细胞分化

目的:研究人骨髓间充质干细胞向肝细胞的诱导分化,为肝组织工程提供理想的细胞来源。方法:以肝细胞生长因子、成纤维细胞生长因子4对种植于基底膜基质中的人骨髓间充质干细胞进行三维立体诱导培养,在培养后不同时间,分别进行形态观察、AFP、Alb的免疫组化荧光染色及靛青绿的摄取与排泌试验。结果:该条件下诱导后的人骨髓间充质干细胞生成肝细胞样细胞,阳性表达肝细胞特有表面标志AFP、Alb,并具备肝细胞特有的摄取与排泌靛青绿的活性功能。结论:肝细胞生长因子、成纤维细胞生长因子4及基底膜基质可能在体外人骨髓间充质干细胞向肝细胞分化的过程中提供适宜的微环境并起重要作用,这为间充质干细胞在肝组织工程中的应用提供了理论与技术上的支持。     

慢病毒介导沉默NIPBL基因对小鼠骨髓间充质干细胞成骨分化能力的影响

目的 探讨慢病毒介导沉默NIPBL基因对小鼠骨髓间充质干细胞成骨分化能力的影响.方法 将第三代c57小鼠骨髓间充质干细胞分为实验组、阴性对照组、空白对照组.将慢病毒载体转染至小鼠骨髓间充质干细胞,倒置荧光显微镜观察慢病毒转染结果,Real-time PCR检测NIPBL基因表达情况.成骨诱导培养,检测碱性磷酸酶活性,应...     

骨髓间充质干细胞向成骨细胞定向诱导分化的相关研究

骨髓由非贴壁的造血细胞和贴壁的基质细胞部分组成。这些贴壁的基质细胞部分包括多能间充质干细胞和分化的骨髓间充质基质细胞。间充质干细胞(mesenchymal stem cells,MSCs)系统依靠增殖来自我更新,但是能够保持其干细胞的表型而引起成骨细胞、成软骨细胞、成脂肪细胞、成纤维细胞的分化[1]。如何定向诱导其成骨分化可为研究骨组织工程、骨折修复和骨质疏松等难题提供理论基础,具有重要的意义。本综述讨论了骨髓间充质干细胞向成骨细胞定向诱导分化的相关研究。     

Acupuncture Treatment of Vomiting

CASE HISTORY A female patient, 46 years old, head of the foreign affairs department of a certain university in Beijing, paid her first visit on October 9, 2006, with the chief complaint of vomiting for one month. She got vomiting after meals in early September. Before that, she had discomfortable sensation in the stomach due to angry with others, but she didn't pay much attention. Later, it developed into vomiting after eating. After the vomiting, the discomfort would be relieved, but with slight hypodynamia. She was once diagnosed as having 'neurogenic vomiting'. Having taken some western and Chinese drugs, the above symptoms were a little bit improved, but she would have nausea upon eating and with regurgitation. Because of the fear for vomiting, she did not dare to have food intake, with body weight reduction of 6 kilos in one month.     

Qiu Baoguo''''s Experience in Treating Consumptive Syndromes after Radio-Chemotherapies

Radiotherapy and chemotherapy are the important modern medical therapies for malignant tumors,yet they can also bring about serious local and systemic toxic side reactions so to decrease the patient;'s life quality,manifested by a series of consumptive symptoms.Having engaged in the combined work of Chinese and western medicine for nearly 50 years,the research fellow Qiu Baoguo in Henan Provincial Academy of TCM has developed his unique views on the TCM study of consumptive syndromes.The author of this essay had once the fortune tO follow Dr.Qiu in clinic,and specially would like to introduce in the following Dr.Qiu's experience in treating consumptive syndromes after radio-chemotherapies for patients with malignant tumor.     

Insomnia Due to Deficiency of Both the Heart and Spleen Treated by Acupuncture-Moxibustion and Chinese Tuina

OBJECTIVE: To observe therapeutic effects of the comprehensive therapy of acupuncture-moxibustion and Chinese Tuina for treatment of insomnia due to deficiency of both the heart and spleen. METHODS: 92 cases were divided randomly into the treatment group (treated by acupuncture-moxibustion and Chinese Tuina) and the control group (treated by acupuncture-moxibustion). RESULTS: The therapeutic effect of the treatment group was obviously superior to that of the control group (the CHI2 test showed P < 0.01). CONCLUSIONS: The comprehensive therapy of acupuncture-moxibustion and Chinese Tuina can give marked therapeutic effects for treatment of insomnia due to deficiency of both the heart and spleen.     

Analysis of CK-19,PDX-1,Nestin,Ngn3 in different donor islet purity in rats

Objective: To investigate if there are the CK-19, PDX-1, Nestin, Ngn3 positive cells in the donor islets of different purity in rats. Methods: Thirty male adult SD rats were randomly divided into 3 groups. Islets were isolated using digestion by ductal injection of collagenase. Group Ⅰ (n=10): Separating cell preparations were not purified, Group Ⅱ(n=10): Islet sediment was purified with 25% Ficoll400 ,Group Ⅲ (n=10): Islet sediment was purified with 25% and 11% Ficoll-400. The levels of protein of CK-19, PDX-1, Nestin and Ngn3 were detected by immunohistochemistry and the mRNA of CK-19, PDX-1, Nestin, Ngn3 was amplified by RT-PCR. Results: After two different purification methods applied, three islet preparations of different purities were obtained. The difference of islet purity was significant among various groups (P＜0.05). Compared with group Ⅱ and group Ⅲ,the protein and mRNA of CK-19, PDX-1, Nestin,Ngn3 were both higher in group Ⅰ; group Ⅲ was poorly expressed. Conclusions: The three different islet purity donor islet have different CK-19, PDX-1, Nestin, Ngn3 positive cells within them, indicating that there are some islet stem cells in the purified donor islet.     

A preliminary screening study on the associated proteins in human psoriasis vulgaris by serum proteomics technologies

Objective：To investigate the optimum screening conditions of associated proteins in human psoriasis vulgaris by serum proteomics technique, and to screen the different expression proteins related with psoriasis vulgaris. Methods：Serum samples of peripheral blood were collected from newly diagnosed psoriasis vulgaris patients in the clinic, and 20 matched healthy persons. Serum albumin IgG was removed by filtering with ProteoExtract Albumin/IgG. After comparative proteomics analysis the different protein spots were identified using 2-DE and MS. Results ：Electrophoresis figures with high resolution and reproducibility were obtained. Three different expression proteins were found only in the serum from psoriasis vulgaris patients, while nine other different proteins expressing from healthy volunteers. Conclusion：The protein expression was different in the serum between the psoriasis vulgaris patients and healthy volunteers. It was hoped that we could find the biomarkers related to psoriasis vulgaris by using proteomics.     

A CASE OF HUGE GASTRIC DISOPYROBEZOAR

PYTOBEZOARS are common bezoars in gastrontestinal tract, commonly seen in stomach and mall intestine,1but huge disopyrobezoars are     

Acupuncture Treatment of Chest Bi Syndrome

CASE HISTORY A male,a retired officer of 61 years old,paid his first visit on May 12,2006.The patient stated that 2 weeks before he suddenly got paroxysmal precordial choking pain,with irregular attacks.Each attack would last several seconds to several minutes.The attack was accompanied with heavy oppressed sensation in the precordial region,palpitation,lassitude,and in severe cases,sweating,which was once diagnosed by a hospital as'coronary heart disease'.Recalling the case history,the patient said that several days before he got angry with others because of some affairs in work,and he was not so used to the life pattern since he had just retired from his busy working post.At usual times,he was quick tempered and peevish.In recent days,he had poor appetite,and loose stool.     

Instructions to Contributors

The English edition of Chinese Journal of Integrative Medicine is edited and published by the Chinese Journal of Integrated Traditional and Western Medicine Press.Original scientific papers of advanced clinical and experimental medicine in the field of complementary/alternative medicine or integrative medicine are expected.