1.Effect of Adhesion Molecules on Skeletal Muscle Ischemia Reperfusion Injury
Xintao WANG ; Songcen LV ; Zhu HAN ; Yuyi SUN ; Jinglong YAN
Chinese Journal of Rehabilitation Theory and Practice 2007;13(5):425-427
Objective To investigate the changes of adhesion molecules and their effects on skeletal muscle ischemia/reperfusion injury. Methods 42 Wistar rats were divided into 3 groups: normal control group (Group Ⅰ, n=6), ischemia group (Group Ⅱ, n=6),ischemia/reperfusion injury group (Group Ⅲ, n=30). The level of malondialdehyde (MDA) in the plasma, myeloperoxidase (MPO) in the skeletal muscle, CD11b/CD18 on the leukocytes, intercelluar adhesion molecule-1 (ICAM-1) in the skeletal muscle and the histological changes were studied 1 h, 2 h, 4 h, 8 h, 12 h reperfusion after ischemia for 4 h. Results In group Ⅲ, the expression of CD11b/CD18, ICAM-1 and the injury of skeletal muscle increased with the lapse of reperfusion time. They reached the peak at 8~12 hours' reperfusion. The injury of skeletal muscle developed with the expression of adhesion molecules. Conclusion The expression of CD11b/CD18 and ICAM-1 are significantly associated with the skeletal muscle ischemia-reperfusion injury.
2.Isolation of mouse alveolar macrophages by flow cytometry and identification
Xintao HAN ; Dianyuan ZHAO ; Li TANG
Acta Universitatis Medicinalis Anhui 2017;52(11):1596-1600
Objective To establish a method for isolating alveolar macrophage (AM) of mouse based on flow cy tometry.Methods The lungs were digested by collagen ⅣV in vitro to prepare single-cell suspension that was stained by CD11 b and CD1 1 c antibody.CD1 1 b1owCD1 1 c + cell population were AM and isolated by flow cytometry.After that,the cell viability was measured via the Typan blue staining,and the identification of AM was through flow cytometry and real-time PCR.Results CD1 1 b1owCD1 1 c + cell population was isolated by flow cytometry,the purity was (93 ± 2)% and the cell viability was (80 ±5)%.The real-time PCR results showed that peroxisome proliferator-activated receptor γ (PPARγ) mRNA was highly expressed in AM isolated by flow cytometry (P < 0.001).In addition,the functional assay showed that the isolated AM possess high phagocytic activity.Thus,the results described above demonstrate that the isolated cells were AM.Conclusion A method for obtaining AM based on flow cytometry was established.The method has high cell purity and good cell activity which can be used for functional experiments.
3. Clinical effect of high pressure oxygen and Butylphthalide in the recovery of cerebral metabolism after carbon monoxide poisoning
Qian HAN ; Xintao GUO ; Huanhuan ZHANG ; Rui TIAN ; Xiao GAO ; Zhiqing ZHANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2017;35(8):591-593
Objective:
To study the clinical effect of high pressure oxygen and Butylphthalide in the recovery of cerebral metabolism after carbon monoxide poisoning.
Methods:
84 patients treated from May 2014 to May 2016 in our hospital were selected. The subjects were randomly and equally divided into two groups. The control group adopted the conventional therapy and high pressure oxygen; on the basis, the observation group also took Butylphthalide. The clinical effect, duration of coma, recovery of consciousness, incidence rate of delayed encephalopathy was observed. After 1m of treatment, the HDS point was evaluated.
Results:
The total effective rate of control group (76.19%, 32/42) was lower than that of observation group (95.24%, 40/42) (