1.Chromosome 3p tumour suppressor genes and clear cell renal cell carcinoma
Journal of International Oncology 2012;39(1):60-63
The abnormal changes of tumor suppressor genes such as deletion mutant,transcription inactivation or silence on human chromosome 3p (pter) are considered as a key step which is closely related to the tumorigenesis of several kinds of cancers,especially clear cell renal cell carcinoma,one kind of renal cancer.And on this basis,it has been confirmed that the deletion and downregulation of multiple 3p genes such as VHL,RASSF1A,SEMA3B,SETD2,PBRM1,NPRL2 and so on,play a vital important role in the tumorigenesis and development of clear cell renal cell carcinoma.And they provide a further way to explain the molecular mechanism of the tumorigenesis of kidney cancer.However,when the regulatory pathway and mechanism research of some genes are known to us,the other genes,especially those newly founded,which are still not clear and need to be further investigated.
5. Comparative study on extraction method of Zuojin Pills
Chinese Traditional and Herbal Drugs 2011;42(6):1105-1108
Objective: To study Zuojin Pills with different extraction methods and select the best one. Methods: To establish the fingerprints and determination the content of five alkaloids in Zuojin Pills by ultra performance liquid chromatography (UPLC), compare the water extraction, 70% ethanol extraction, HCl-methanol (1:100) extraction, and semi-bionic extraction according to the similarity of fingerprints and content of five alkaloids. Results: The appearance time of all chromatographic peaks of Zuojin Pills was within 8 min and 9 common chromatographic peaks were obtained. The linear is stable and peak form is better. The linear relationship and resolution of the five alkaloids are nice. The similarity of the fingerprints exceed 0.98; The contents of the five alkaloids are much more different, the content of the five alkaloids in the HCl-methanol sample is the most, however, the least is the water extraction sample. Conclusion: This study shows that the UPLC method is convenient with quick analysis rate. On account of indicated component quantitative analysis, it could be used to synthetically evaluate the extraction method. HCl-methanol (1:100) extraction method is the best one.
6.A controlled study of cortisol, thyroid hormone and autonomic function in anxiety disorder
Honglei YIN ; Jun HONG ; Xiang XUE ; Jingbo ZHAO
Chinese Journal of Behavioral Medicine and Brain Science 2011;20(11):1025-1028
ObjectiveTo investigate the features of the cortisol ( COR),thyroid hormone and autonomic function of anxiety disorder,and to observe the relationships between clinical subtypes,insomnia,gender factors and the neuroendocrine and autonomic function.Methods60 anxiety disorder patients and 60 healthy controls were randomly selected from a three-grade class A hospital over the same period.Blood at 8:00am to test the plasma COR,T3,T4,TSH level and examined the heart rate variability (HRV) on the same day,the anxiety disorder patients also finish the self-rating anxiety scale (SAS).ResultsThe plasma COR,TSH level and LF/HF index were significantly higher( (531.58 ± 218.59 ) nmol/L,P< 0.0l ; (3.50 ± 1.35 ) MIU/L,P< 0.05 ;3.87 ± 3.37,P<0.0l ),while the SDNN,LF,HF index were significantly lower in anxiety disorder than that in the control group (27.34±13.13,P<0.01;338.72 ±396.34,P<0.01;135.77 ±149.95,P<0.01).The plasma COR,TSH level and LF/HF index were significantly higher(P < 0.05,P<0.01,P<0.01 ),while the SDNN and HF index were significantly lower in panic disorder than that in the generalized anxiety disorder (P < 0.01 ).The plasma COR,TSH level and LF/HF index were significantly higher,while the SDNN,LF,HF index were significantly lower in panic disorder than that in the control group (P<0.01 ).The plasma COR was significantly higher,while the SDNN and HF index were significantly lower in generalized anxiety disorder than that of the control group (P<0.01 ).The plasma COR level and LF/HF index were significantly higher (P<0.01,P<0.05),while the SDNN,LF,HF index were significantly lower in anxiety disorder with or without insomnia than that in the control group (P< 0.01 ).The plasma TSH level was significantly higher in anxiety disorder with insomnia than that in the control group (P< 0.05 ).There were no significant difference of the neuroendocrine and autonomic function between anxiety disorder with or without insomnia (P > 0.05 ).The plasma COR,TSH level were significantly higher,while the SDNN,LF,HF index were significantly lower in the female group than that in the male group (P<0.01).The total SAS scores were significantly positively correhted with plasma COR levels,and was significantly negatively correlated with SDNN,HF index in the anxiety group.ConclusionThere are neuroendocrine and autonomic nervous system dysfunctions in anxiety disorder,and these dysfunctions are related with clinical subtypes,insomnia,and gender.
7.Effect of HLA matching measures on prevention of hyperacute rejection before kidney transplantation
Shi QIU ; Liming ZHAO ; Long LIU ; Jun XIANG ;
Academic Journal of Second Military Medical University 2000;0(08):-
Objective:To investigate the effect of 3 HLA matching measures on preventing hyperacute rejection(HAR). Methods:Among 1 152 cases,550 cases received anti donor lymphocytotoxic crossmatch(LXM),335 cases received LXM and HLA serological test,267 cases of the latter again received panel reaction antibody(PRA)test, the change of the HAR rate with different HLA matching measures were analyzed. Results:If LXM value ≤10% or HLA matched loci ≥3,the rate of HAR was unrelated to LXM value or HLA matched loci. HAR rate decreased significantly in patients with LXM and HLA serological test, and decreased more markedly in those with additional PRA test compared with those only with LXM test. Conclusion:HLA test and PRA are necessary and effective to avoid HAR.
8.Comparative study on the treatment effects with rhIL-11 and rhG-CSF in combination or alone on immune function.
Jie ZHAO ; Xiang-Yu ZHAO ; Xiao-Jun HUANG
Chinese Journal of Hematology 2005;26(8):469-472
OBJECTIVETo investigate the effect of in vivo administration of rhG-CSF and/or rhIL-11 on mice immune system function.
METHODST cell subgroups, suppressor T cells (CD8+ CD28-, CD4+ CD25+, CD3+ CD4- CD8- T cells), expression of CD28 on T cells, and spleen T cells intracellular IL4/IFN-gamma secretion were determined by multicolor flow cytometry. MTT was used to determine the T cell proliferation capacity and mixed lymphocyte reactions.
RESULTSIn vivo administration of cytokines decreased the percentage of lymphocytes (P < 0.05), rhIL-11 and rhG-CSF in combination significantly decreased the CD4+/CD8+ ratio and increased the percentage of CD8+ CD28- suppressor T cells compared to either cytokine alone (P < 0.01). There was no difference in the percentage of CD3+ CD4- CD8- and CD4+ CD25+ suppressor T cells between either of the cytokines. Furthermore, cytokines treatments significantly decreased the capacities of splenic T cells proliferation and the response to alloantigens compared with the PBS treatment (P < 0.05), the combination group being more significantly decreased (P < 0.01). And cytokines treatment significantly decreased the production of IFN-gamma and increased the production of IL-4 compared with the PBS treatment(P < 0.05). The ratio of IFN-gamma/IL-4 were significantly decreased after the combination compared with either of them alone.
CONCLUSIONThe combination of rhIL-11 and rhG-CSF is potentially synergistic in the induction of immune tolerance by their effects on the proliferation capacity and function of T lymphocytes.
Animals ; CD28 Antigens ; metabolism ; Granulocyte Colony-Stimulating Factor ; pharmacology ; Immune Tolerance ; Interleukin-11 ; pharmacology ; Mice ; Mice, Inbred C57BL ; Recombinant Proteins ; T-Lymphocytes ; drug effects ; immunology ; metabolism
9.Surgical treatment of carotid artery stenosis (for 120 cases)
Zhiqing ZHAO ; Zaiping JING ; Qingsheng LU ; Junmin BAO ; Xiang FENG ; Jun ZHAO ; Jiang XIONG
Chinese Journal of General Surgery 1994;0(05):-
Objective To evaluate the surgical treatment of carotid artery stenosis. MethodAccording to the level and degree of the stenosis, different operations were performed on 120 patients who suffered from the extracranial carotid stenosis. Treatment result was retrospectively reviewed. ResultSurgery was successful in all the patients. We performed carotid endarterectomy on 111 cases and other operations on 9 cases. The incidence of postoperative complications was low, especially for carotid endarterectomy. ConclusionCarotid endarterectomy is still the main therapy for the treatment of carotid artery stenosis with a satisfactory result.
10.Unilateral fixation combined with interbody fusion for the treatment of lumbar degenerative instability via a paraspinal intermuscular approach under MAST Quadrant retractor.
Sheng-hua HE ; Du-jun MA ; Xiang ZHAO ; Hao DING ; Jun FANG
China Journal of Orthopaedics and Traumatology 2016;29(5):424-428
OBJECTIVETo study clinical effects of unilateral pedicle screw-rod system fixation combined with the single the cage of interbody fusion in the treatment of lumbar degenerative instability via paraspinal intermuscular approach under MAST Quadrant retractor.
METHODSFrom February 2010 to December 2011, 39 patients with lumbar degenerative instability after invalid conservative treatment were treated with unilateral fixation combined with interbody fusion via the paraspinal intermuscular approach under MAST Quadrant retractor. The indexes such as the operative time, blood loss, complications, VAS pain scores, JOA (subjective symptoms of low back pain,lower limb pain and numbness, sensory disturbance, movement disorders) scores, modified Macnab criteria for curative effect evaluation were observed before treatment, at the 1st month after treatment and the latest follow-up. The intervertebral fusion was studied on the X-ray at the latest follow-up.
RESULTSAll the patients were followed up, and the mean during was (22.3 +/- 8.6) months. The operation time was (138 +/- 46) min, and the amount of bleeding was (335 +/- 152) ml. There were no complications such as cerebrospinal fluid leakage and spinal nerve injury during operation, and no incision infection after operation. The VAS pain score was reduced from preoperative 7.93 +/- 1.27 to 2.05 +/- 1.18 on the 1st month after operation and 1.89 +/- 0.42 at the latest follow-up. The JOA total score was improved from preoperative 1.59 +/- 0.42 to 8.86 +/- 0.37 on the 1st month and 9.02 +/- 0.29 at the latest follow-up. According to modified Macnab criteria, there were 17 cases got an excellent result, 19 good, 3 case fair. Thirty-five patients got intervertebral bony fusion at the latest follow-up.
CONCLUSIONUnilateral pedicle screw-rod system fixation combined with single cage interbody fusion in the treatment of lumbar degenerative instability via paraspinal intermuscular approach under MAST Quadrant retractor is a safe, minimally invasive, satisfactorily effective methods to treat lumbar degenerative instability.
Adult ; Aged ; Female ; Follow-Up Studies ; Fracture Fixation, Internal ; Humans ; Intervertebral Disc Degeneration ; surgery ; Intervertebral Disc Displacement ; surgery ; Lumbar Vertebrae ; surgery ; Male ; Middle Aged ; Pedicle Screws ; Reconstructive Surgical Procedures ; Spinal Fusion ; Treatment Outcome