中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (35): 6221-6227.doi: 10.3969/j.issn.2095-4344.2013.35.001

• 骨与关节损伤基础实验 basic experiments of bone and joint injury •    下一篇

乙醇对股骨头髓内脂肪细胞的作用

陈跃平1,高 辉1,陈 亮1,董盼锋1,尹庆水2   

  1. 1广西中医药大学附属瑞康医院骨科,广西壮族自治区南宁市  530011;2解放军广州军区总医院骨科医院,广东省广州市  510010
  • 收稿日期:2013-05-07 修回日期:2013-05-29 出版日期:2013-08-27 发布日期:2013-08-27
  • 通讯作者: 尹庆水,主任医师,教授,博士生导师,解放军广州军区总医院骨科医院,广东省广州市 510010 gz_yqs@medmail.com
  • 作者简介:陈跃平☆,男,1970年生,湖南省益阳市人,南方医科大学在读博士,硕士生导师,主任医师,教授,主要从事骨与关节损伤研究。 chenyueping007@126.com
  • 基金资助:

    广西壮族自治区科技厅自然基金(2010GXNSFA013223);广西壮族自治区卫生厅重点课题(重2010096)

Alcohol affects the femoral head intramedullary adipocytes

Chen Yue-ping1, Gao Hui1, Chen Liang1, Dong Pan-feng1, Yin Qing-shui2   

  1. 1Department of Orthopedics, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning  530011, Guangxi Zhuang Autonomous Region, China; 2Orthopedic Hospital, General Hospital of Guangzhou Military Region of PLA, Guangzhou  510010, Guangdong Province, China
  • Received:2013-05-07 Revised:2013-05-29 Online:2013-08-27 Published:2013-08-27
  • Contact: Yin Qing-shui, Chief physician, Professor, Doctoral supervisor, Orthopedic Hospital, General Hospital of Guangzhou Military Region of PLA, Guangzhou 510010, Guangdong Province, China gz_yqs@medmail.com
  • About author:Chen Yue-ping☆, Studying for doctorate, Master’s supervisor, Chief physician, Professor, Department of Orthopedics, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning 530011, Guangxi Zhuang Autonomous Region, China chenyueping007@126.com
  • Supported by:

    Natural Science Foundation of Guangxi Zhuang Autonomous Region Science and Technology Department, No. 2010GXNSFA013223*; Key Projects of Guangxi Zhuang Autonomous Region Health Department, No.Zhong2010096*

摘要:

背景:乙醇已成为股骨头缺血性坏死的致病因素,其所致的骨髓内脂质代谢异常可能是股骨头缺血性坏死起病的重要原因,但机制尚未完全明确。
目的:从分子水平观察在乙醇作用下脂肪细胞结构功能的变化,以期分析酒精性股骨头坏死的发病机制。
方法:采用原代脂肪细胞体外培养技术,取大白兔股骨头髓内脂肪组织,分离获取脂肪细胞,以油红O染色行细胞表型鉴定。取传代稳定的髓内脂肪细胞,将盖玻片切割成10 mm×10 mm,种植前置入24 孔培养板孔内,分为乙醇组和对照组,每组24 孔,每孔为1个样本。对照组不加乙醇,乙醇组加入0.15 mol/L乙醇,分别于4,6,8,10 d 更换培养液,换液时不再加入乙醇,均培养至10 d。培养终止后,取出盖玻片行油红O染色,光镜下观察脂肪细胞形态并计数。
结果与结论: 随着时间延长,乙醇组脂肪细胞数量明显多于对照组(P < 0.001),2组小脂滴均逐渐增多、增大,但乙醇组更明显。培养4,6,8,10 d的髓内脂肪细胞数量乙醇组分别为(200.90±24.60),(1 102.30±76.73),(1 160.30±28.37),(1 199.70±44.74)个/cm2;对照组分别为(99.80±10.82),(0.40±94.71),(1 000.20±41.85),(1 059.80±26.79)个/cm2,脂肪细胞数量随乙醇作用的时间延长而增多。提示乙醇能够促进髓内脂肪细胞增殖肥大,这可能是长期酗酒后股骨头骨髓内脂肪组织增多,骨内压增加,血流灌注减少,导致缺血,从而发生股骨头坏死的主要原因。

关键词: 骨关节植入物, 骨关节损伤基础实验, 乙醇, 股骨头坏死, 脂肪细胞, 大白兔, 脂质代谢紊乱, 脂滴, 肥大, 骨内压, 省级基金

Abstract:

BACKGROUND: Alcohol has become pathogenic factors of avascular necrosis, and the alcohol induced abnormal lipid metabolism in bone marrow may be the important reason for the onset of avascular necrosis, but the mechanism is not clear yet. 
OBJECTIVE: To observe the changes of structure and function of fat cells under the action of alcohol, in order to analyze the pathogenesis of alcoholic femoral head necrosis.
METHODS: Primary adipocytes in vitro culture technique was used to obtain rabbit femoral head intramedullary adipose tissue, and then the fat cells were separated, and the phenotype was identified with oil red O staining. The passaged stable intramedullary fat cells were collected. Coverslip was cut into 1 cm × 1 cm in size, and placed in the 24-well culture plate before planting. The cells were randomly divided into alcohol group and control group, 24 holes (each hole for a sample) in each group. The control group was without alcohol, while the alcohol group was added with 0.15 mol/L alcohol. At 4, 6, 8 and 10 days, the culture medium was replaced. Medium was changed and no longer adding alcohol, and then cultured for 10 days. When the culture terminated, the coverslip was removed for oil red O staining. Finally, the morphology and the number of the fat cells were observed under light microscope. 
RESUTLS AND CONCLUSION: With time prolonging, the number of fat cells in the alcohol group was significantly more than that in the control group (P < 0.001). The lipid droplets in the two groups were gradually increased and enlarged, but more significant in the alcohol group. The number of intramedullary fat cells in the alcohol group after cultured for 4, 6, 8 and 10 days was respectively (200.90±24.60), (1 102.30±76.73), (1 160.30±28.37) and (1 199.70±44.74)/cm2; the number of intramedullary fat cells in the control group was respectively (99.80±10.82), (0.40±94.71), (1 000.20± 41.85) and (1 059.80±26.79)/cm2, the number of fat cells increased with the time of alcohol influence. Alcohol can promote the intramedullary fat cells to increase and enlarge, and this may be the main reason for femoral head necrosis, as long-term alcoholism can lead to bone marrow fat tissue increasing, intraosseous pressure increasing and perfusion reducing, thus resulting ischemia.

Key words: bone and joint implants, basic experiment of bone injury, alcohol, femoral head necorsis, fat cells, rabbit, dyslipidosis, lipid droplet, enlargement, intraosseous pressure, provincial grants-supported paper

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