1.Inhibition of clotrimazole on Paneth cell defensins
Yu YU ; Lian ZHOU ; Peixun WANG
Chinese Pharmacological Bulletin 2003;0(09):-
Aim To investigate the Clotrimazoles (CLT) inhibitive effect on the secretion of ?-defensins of the Paneth cells.Methods The ?-defensin mRNA expression is determined by semi-quantitative RT-PCR. The secretion of defensins is determined by dot-blot and ELISA. Results CLT has no influence on the defensin mRNA expression. All of 125 nmol?L -1, 250 nmol?L -1 and 500 nmol?L -1 CLT can inhibit the secretion of ?-defensins. Conclusion CLT could inhibit the secretion of defensins, which suggests that CLT maybe influence the function of small intestine
2.Detection of HPV-DNA and SCCAg in the Follow-up of Cervical Squamous Cell Carcinoma Patients
Yu HUANG ; Qi ZHOU ; Dong WANG
Journal of Medical Research 2006;0(12):-
Objective To investigate the infection of human papilloma virus(HPV) and expression of serum squamous cell antigen (SCCAg) in the follow - up of 120 cervical squamous carcinoma patients who had received operation or operation combined with radiotherapy or only radiotherapy. Methods 120 cases of therapical cervical squamous carcinoma patients were detected HPV - DNA by HC - Ⅱ and serum SCCAg using immunohistochemical method. Results The positive rate of HPV - DNA and serum SCCAg was 49.17% and 17.50% , with a significant difference between them( P 0.05 ). Conclusion HPV - DNA test with HC - Ⅱ for follow - up of cervical squamous carcinoma patients was feasible. It was more sensitive than serum SCCAg. But it suggested that high risk type HPV -DNA test combined with serum SCCAg may be the independent prognostic factors.
3.Enzymatic metods in measurement of serum lipids level in patients with acute leukemia
Baozhen WANG ; Shaoxiong ZHOU ; Yongwei YU
Chinese Journal of Practical Internal Medicine 2001;0(04):-
Objective To investigate the clinical significance of serum lipids level changes in patients with acute leukemia.Method Serum total cholesterol(TC),low-density lipoprotein cholesterol (LDL-C),high-density lipoprotein cholesterol (HDL-C),triglyceride(TG),apolipoprotein A1(apoA1),apolipoprotein B(apoB)were determined by using enzymatic methods before treatment and in complete remission period.Results The level of TC,LDL-C,HDL-C,apoA1,apoB before treatment were significantly lower than that in control group and in period of complete remission (P
4.Research of micro-dose heparin therapy for acute leukemia with pre-diffuse intravascular coagulation
Baozhen WANG ; Yongwei YU ; Shaoxiong ZHOU
Chinese Journal of Practical Internal Medicine 2001;0(02):-
Objective To investigate the therapeutic effect and safety of micro-dosage heparin therapy for acute leukemia with pre-diffuse intravascular coagulation (pre-DIC).Methods 36 cases of acute leukemia with pre-DIC were divided into two groups,18 cases were treated with micro-dosage heparin therapy (group A),18 cases were treated with conventional therapy(group B).Results Within the first 10 days,the cases which transformed to diffuse intravascular coagulation (DIC) in group A were significantly lower than group B(P
5.Liquid chromatography-mass spectrometry in laboratory medicine:why,what,and how
Chinese Journal of Laboratory Medicine 2017;40(10):737-740
In the era of precision medicine,liquid chromatography-mass spectrometry(LC-MS)will continue to have significant impact on laboratory medicine in spite of the inherent challenges posed by the technology.It seeks to explain what is clinical mass spectrometry,and describes its basic framework and life cycle.It concludeds the key points of clinical LC-MS through the practical experiences of CLSI guideline and Cleveland health care clinical mass spectrometry laboratory.It then illustrates the challenges of appropriately applying LC-MS to clinical diagnostics through comparisons with research based LC-MS utilizations. Furthermore,It attempts to elucidate the challenges and endeavors It has made toward implementing clinical LC-MS in China.Finally,It discusses the prospective future of LC-MS in clinical diagnostics.
6.Effects of radix salvia miitiorrhizae on the apoptosis of hepatocytes during cold preservation and reperfusion injury in rat donor liver
Yu WANG ; Jie ZHOU ; Xiaoqing JIANG
Chinese Journal of Digestive Surgery 2008;7(4):290-292
Objective To investigate the effects of radix salvia miltiorrhizae on the apoptosis of hepatoeytes during cold preservation and reperfusion injury in rat donor liver. Methods Forty male SD rats were divided into experimental group, control group and sham operation group. The rat model of liver transplantation was established according to the Kamada method. The grafts were preserved in lactated Ringer's solution with radix salvia miltiorrhizae in experimental group and in lactated Ringer's solution in control group for 5 hours, then they were transplanted orthotopically. Six hours after transplantation, the recipients were sacrificed, and the serum ALT and AST were detected by automatic biochemistry analyzer, the hepatocyte apoptosis by TUNEL, the expression of Bcl-2 and FasL protein by flow cytometry. The histopathological changes of the liver grafts were observed under light microscope. Results The levels of ALT and AST in the experimental group were significantly lower than those in the control group after reperfusion. Compared with that in the control group, the apoptosis index of the hepatoeyte was signifieandy decreased in the experimental group ( F = 133.802, P <0.05 ), while the level of Bel-2 protein expression was increased ( F = 91.063, P < 0.01 ). No statistical difference upon FasL protein expression was detected between the 2 groups( F = 1.329, P >0.05). The histopathological injury of the liver grafts in the experimental group was significantly slighter than that in the control group. Conclusions Radix salvia mihiorrhizae inhibits the apoptosis of hepatocytes by increasing the Bcl-2 protein expression during cold preservation and reperfusion injury, so it has a protective effect on the liver graft against ischemia reperfusion injury.
7.Mesenchymal stem cells: their phenotype, immunological features, and potential for homing
Qiangfeng YU ; Jianyin ZHOU ; Xiaomin WANG
International Journal of Surgery 2008;35(5):327-329
Mesenehymal stem cells CMSCS are nonhematopoietie stromal cells that are capable of differentiating into, and contribute to the regeneration of, mesenchymal tissues such as bone, cartilage, muscle, ligament, tendon and adipose. MSCs have been isolated from human first- and second-trimester fetal blood, liver, spleen, bone marrow, adipose tissue, amniotie fluid, periosteum and embryo. Not only can they express many phynotypes involving adhesion molecules and chemokine receptors, but also have character of immune tolerance, so they have potential of migration and transportation to target issue and feature of immune suppressing. There are wide application prospects for a number of areas in the cardiovascular, neurological, blood, surgical injury and other diseases. The current review describes the phynotypes, the immune tolerance and the potential for homing of MSCs.
8.Progress on the origin of hepatocyte stem cell
Qiangfeng YU ; Jianyin ZHOU ; Xiaomin WANG
International Journal of Surgery 2008;35(4):248-251
Generally speaking,the hepatocyte stem cell is not a specific cell type.but an overall name of all kinds of cells that possess stem cell characters about embryonic development and regeneration of liver.HSC is a pluripotential stem cells which have self-renewal capacity and could differentiate into mature hepatocytes and bile duct cells.According to the different origin of hepatocyte stem cell,it can be usually divided into two kinds:non liver-derived hepatocyte stem cell and liver-derived hepatocyte stem cell.
9.Radiosensitizing effect of genistein on laryngeal carcinoma Hep-2 cells
Huimin WANG ; Yu ZHOU ; Shuxiang ZHANG
Chinese Archives of Otolaryngology-Head and Neck Surgery 2016;23(5):259-262
OBJECTIVETo investigate whether the genistein can increase the radiosensitizing effect on laryngeal squamous carcinoma Hep-2 cells.METHODS Hep-2 cells were treated with genistein, radiation, and genistein plus radiation respectively. DMSO was used as the control group. EdU assay was performed to assess the short-term effect of genistein and (or) radiation on the proliferation of Hep-2 cells. Clonegenic assay was used to detect the survival rate of Hep-2 cells after treatment with radiation doses of 0, 2, 4, 6, 8 Gy and radiation combined with genistein. The data was fitted into the classic single-hit multi-target mathematical model to analyze the long-term effect on cell proliferation death of Hep-2 cells.RESULTSIt was observed that radiation combined with genistein could significantly inhibit the proliferation of Hep-2 cells. And the SER of 10μmol/L genistein was 1.412.CONCLUTIONGenistein can inhibit the proliferation of Hep-2 cells by DNA synthesis inhibition, and can be an adjunct agent of radiotherapy.
10.Advances in treatment of retinopathy of prematurity
Yu WANG ; Xiaoguang ZHOU ; Zhijun CHEN
Chinese Journal of Applied Clinical Pediatrics 2017;32(2):146-148
Retinopathy of prematurity (ROP) is a potentially blinding retinal vascular disease that occurs in premature infants and low birth weight infants.Along with the development of perinatal medicine,the incidence of ROP has increased.If infants with ROP could get treatment in time,the disability rate due to ROP would significantly reduce.Now,the present situation and advances in treatment of ROP were reviewed.