1.IsoIation and 2-DE analysis of mitochondria of cultured hepatoma cells
Journal of Chongqing Medical University 1986;0(02):-
Objective:To make the isolation and 2-DE analysis of mitochondria,in order to prepare the following proteomic study on mitochondria of hepatoma-cell. Methods:Mitochondria was separated from cell homogenate by means of density gradient centrifugation,and 2-DE was conducted to examine the protein profile of mitochondrial preparations.Results:The increase in purity of mitochondria was found to be 12 times by density gradient centrifugation.Mitochondrial proteins were displayed well in the 2-DE pattern after purification.Conclusion:The isolation procedure is practicable,which provides a basis for the following proteomic study on mitochondria.
2.The Effects of Intensive Insulin Therapy on the ? Cell of Islets of Pancreas in Incipient Type Diabetes Patients
Journal of Medical Research 2006;0(08):-
0.05);The levels of basal FINS showed a significant differences between group A and group B(P0.05).Conclusions Intensive insulin treatment to newly diagnosed type 2 diabetes patients can control blood glucose rapidly to a desired level,and can recover the function of B cell better than traditional oral hypoglycemic agents by dissolving the virulence of glucose rapidly.
3.Reserch on expression of CXCR4 in non small cell lung cancer cells
Journal of Chongqing Medical University 1986;0(04):-
0.05).The positive expression rate of CXCR4 was 96% in cancer cells in regional metastasized lymph nodes.And its expression was lower than that in primary tumors(P
4.Experimental study of Renshen-heche Tablets on tonifying and warming Shen-Yang
Chinese Traditional Patent Medicine 1992;0(11):-
Objective: To study the effect of Resen heche tablets (RSHC) on tonyfing and warming Shen Yang. Methods: The mice model of Shen Yang deficiency was established by injecting hydrocortisone. The body weight, autonomic activity and swimming time in ice water in model mice were observed. The level of superoxide dismutase (SOD) in red cell and lipid peroxide (LPO) in plasma of aged rats were analyzed. The effect on anti stress in mice was examined. Results: RSHC had the remarkable effect to improve body weight and autonomic activity and to prolong swimming time in ice water in model mice, and to increase SOD activity and reduce LPO in blood of aged rats, and to elevate the ability of anti fatigue and anoxic tolerance in mice. Conclusion: RSHC drug has the effect on tonifying and warming Shen Yang; can promote growth, enhance organism activity, elevate the adaptation to circumstances and protect injury from free radicals.
5.Expression of c-met stimulated by high glucose in human renal tubular epithelial cells and its implication.
Journal of Huazhong University of Science and Technology (Medical Sciences) 2007;27(2):161-3
The expression of c-met stimulated by high glucose in human renal tubular epithelial cells and the role of HGF/c-met system in diabetic nephropathy were examined. The proximal tubular epithelial cells were cultured in vitro under different conditions. MTT was used for the detection of cellular proliferation and RT-PCR was employed for measurement of c-met mRNA level. Our results showed that under different conditions, there were no significant differences in the proliferation of proximal tubular epithelial cells 12 h and 24 h after the culuture (P>0.05). The proliferation of proximal tubular epithelial cells showed a significant change 96 h after the culture and the cellular proliferation induced by hepatocyte growth factor (HGF) was very active (P<0.05). Moreover, no significant difference in the expression of c-met mRNA was found 12 h after the culture under different conditions (P>0.05), while 24 and 96 h after the culture, a persistent and significantly higher expression of c-met mRNA was found in HGF-induced proliferation. It is concluded that addition of exogenous HGF could inhibit the apoptosis induced by high-level glucose, promote the proliferation of proximal tubular epithelial cells, and induce the expression of c-met. Our study suggests that local up-regulation of HGF/c-met system plays an important role in the repair of renal damage in diabetic nephropathy.
6.Under local anesthesia hernia ring without tension hernia repair filling type surgical treatment the groin hernia
Chinese Journal of Postgraduates of Medicine 2012;(z1):31-32
Objective To evaluate the way of under local anesthesia hernia ring without tension hernia repair filling type surgical treatment the groin hernia surgery value of clinical application.Methods The clinical data of 256 cases were analyzed retrospectively for inguinal hernia in local anesthesia downside hernia ring filling type without tension hernia repair.Results All patients were recovered,under local anesthesia hernia ring without tension filling type hernia repair operation convenient operation,postoperative pain were light,the recurrence rate was low,less complications.Only 2 cases appeared the liquefaction of fat,1 case appeared urinary retention.Follow-up so far without recurrence.Conclusion Local anesthesia hernia ring without tension hernia method is safe and rehable,simple operation,and complex human anatomy,it is a kind of ideal choice to the ones who can't tolerate epidural anesthesia patients.
7.Expression of neutrophil extracellular trap and B lymphocyte in renal tissue of patients with lupus nephritis and its significance
Chinese Journal of Nephrology 2012;28(4):267-271
Objective To investigate the association of expressions of neutrophil extracellular trap (NET) and B lymphocyte in renal tissue with lupus activity in patients with lupus nephritis (LN). Methods Immunohistochemistry was.used to detect the expression of NET (citrullinated histone H3 as the marker) and the infiltration of B lymphocyte (CD19 as the marker)in renal specimens of three groups [LN group,n=20; minimal change disease (MCD) group,n=8;healthy control group,n=3].The chronic index and SLE-disease activity index (SLE-DAI) in renal tissues of LN and their correlations with NET and B lymphocytes were examined. Results The expression of NET was not found in the renal tissues of healthy control group and MCD group,while it increased significantly in LN group,especially in glomeruli with moderate and severe mesangial cells proliferation, cellular crescents, and tubulointerstitium with inflammatory cell infiltration.Compared with other types of glomeruli,the expression of NET was significantly upregulated in glomeruli with moderate and severe mesangial cell proliferation (P<0.01).In the glomeruli with moderate and severe glomerular mesangial cell proliferation,the mean number of =NET positive cells was positively correlated with renal pathological active index (r=0.620,P=0.004),the score of SLE-DAI (r=0.492,P=0.027) and the mean number of NET positive tubular cells (r=0.558,P=0.011).In renal interstitium,the NET positive cells were positively correlated with CD19 positive B lymphocytes (r=0.573,P=0.008) and renal pathological chronic index (r=0.645,P=0.002). Conclusion NET is widely expressed in the renal tissues of lupus nephritis,which may play a role in the active damage of glomeruli.
8.Expression of connexin 43 in ovarian cancer and its relationship with chemoresistance
Chinese Journal of Obstetrics and Gynecology 2009;44(1):50-55
Objective To examine the expression of protein kinase C (PKC), connexin43(Cx43) and non-phosphorylated Cx43 in ovarian cancer, and discuss the role of phosphorylated of Cx43 in chemoresistance in ovarian cancer. Methods We examined the expression of Cx43, non-phosphorylated Cx43 and PKC in ovarian cancer tissue by immunohistochemistry, and compared their expression in chemosensitivity group and ehemoresistance group. Cisplatin resistant ovarian cancer cell line SKOV3/DDP cells were treated by staurosporine (a kind of PKC inhibitors). Then expression of Cx43, non-phosphorylated Cx43 and PKC were tested. Meanwhile, we tested chemosensitivity of SKOV3/DDP cells by ATP bioluminescence tumor chemosensifivity assay (ATP-TCA). Results (1) Immunohistochemically,the rates of positive expression of Cx43 and non-phospharylated Cx43 were 54%, 14% respectively in the chemoresistance group, which were 83%, 59% in the chemosensitivity group respectively (P<0.05). The rate of positive expression of PKC in 28 chemoresistance ovarian cancer cases (64%) was higher than that in 29 chemosensitivity cases (31% ,P<0.05). Both of them were significantly lower in ehemoresistanee group than in chemosensitivity group (P<0.05). In addition, the expression of PKC was negatively correlated with the expression of Cx43 and non-phosphorylated Cx43. The correlation coefficients were -0. 626 and -0. 714, respectively (P<0.05). (2) Immunohistochemically, PKC was down regulated, and Cx43 and non-phosphorylated Cx43 were up regulated in SKOV3/DDP cells after staurosporine treatment. The longer the staurosporine worked, the more expression of Cx43 was. (3) By ATP-TCA, SKOV3/DDP cells were resistant to paclitaxel and cisplatin. The tumor growth inhibition was higher in the group of paclitaxel or cisplatin combined staurosporine than in the group of paclitaxel or cisplatin alone. The sensitivity was intermediate in the group combined with low concentration staurosporine (1×10-8 moL/L), and the sensitivity was high in the group combined with high concentration staurosporine (1×10-7 mol/L). Conclusions Phosphorylation of Cx43 caused by PKC leads to decrease in the expression of Cx43. This effect makes ovarian cancer cells less chemosensitive. Phosphorylation of Cx43 caused by PKC can be inhibited by staurosporine.
9.Expression of miRNA-31 in serum of children with airway allergic disease
International Journal of Pediatrics 2015;42(5):587-589
Objective To examine miRNA-31 expression in serum of children with airway allergic disease (asthma and allergic rhinitis) and determine the correlation with CD44.Methods The expression of miR-NA-31 and CD44 in serum of 26 children with acute asthma and allergic rhinitis and non-acute phase and 36 normal control children were determined by real-time reverse transcriptase polymerase chain reaction.Results The miRNA-31 was significantly overexpressed in serum of children with acute asthma and allergic rhinitis compared with non-acute phase and normal control children and significantly correlated with CD44.Conclusion The correlation between miRNA-31 and CD44, the aberrant expression of miRNA-31 may account for the occurrence and development of airway allergic diseases.
10.Current status of mechanical thrombectomy for acute ischemic stroke
International Journal of Cerebrovascular Diseases 2016;24(1):63-67
Before irreversible neuronal damage occurs, quickly and securely recanalize vessels and restore blood flow to save the ischemic penumbra tissue are the main therapeutic target for acute ischemic stroke (AIS). Currently, the method for recanalization in early AIS is intravenous thrombolysis, how ever, the effect of intravenous thrombolysis is often not satisfactory because of the reasons, such as its short treatment time w indow , low vascular recanalization rate, and high incidence of bleeding complications. In recent years, w ith the research and development of mechanical thrombectomy device and the development of interventional technology, the therapeutic time w indow of AIS has been significantly prolonged, the vascular recanalization rate has increased significantly, the clinical outcome has improved significantly, and the treatment of mechanical thrombectomy has show n good application prospects.