1.Effect of Acupuncture on Insulin Receptor Substrate and Glucose Transporter 4 in Skeletal Muscle of Experimental Rats with Insulin Resistance
Journal of Guangzhou University of Traditional Chinese Medicine 2015;(4):699-704
Objective To observe the curative effect of acupuncture on insulin receptor substrate 1 ( IRS-1) , IRS-2 and glucose transporter 4 (GLUT4) in skeletal muscle of experimental rats with insulin resistance (IR) . Methods Thirty-two rats were randomly divided into normal group, model group, acupuncture normal group and acupuncture model group. The fasting plasma glucose ( FPG) level was detected with glucose oxidase method, fasting insulin and C-peptide ( C-P) were examined with enzyme linked immunosorbent assay ( ELISA) , insulin sensitivity index ( ISI) was calculated, and IRS-1 mRNA, IRS-2 mRNA and GLUT4 mRNA of skeletal muscle were observed by real-time PCR-based fluorescent assay in each group. Results Compared to the normal group, the FPG, FINS, C-P levels were increased dramatically (P<0.01), ISI, IRS-1 mRNA, IRS-2 mRNA and GLUT4 mRNA of the model group declined remarkably ( P<0.01). Compared to the model group, the FPG, FINS, C-P levels declined evidently ( P<0.05 or P<0.01) , and ISI, IRS-1 mRNA, IRS-2 mRNA and GLUT4 mRNA of the acupuncture model group were increased dramatically ( P<0.01). Conclusion The curative mechanism of acupuncture for insulin resistance is probably related to the increase of IRS-1 mRNA, IRS-2 mRNA and GLUT4 mRNA expression in skeletal muscle which contributes to the improvement of PI3K signal pathway.
2.Establishment of the functional scale for cervical spondylosis of vertebral artery type
Yi WEI ; Weixiong LIANG ; Yefeng CAI
Chinese Journal of Tissue Engineering Research 2005;9(26):219-221
BACKGROUND: At present, the scale for evaluating cervical vertigo symptoms and functions applied in clinic can evaluate the overall curative effect in patients with cervical spondylosis of vertebral artery type (CSA).However, this scale lacks the content of functional status and emotional function for evaluating daily life function.OBJECTIVE: To develop a functional scale for cervical spondylosis of vertebral artery type (FS-CSA) including functional status and emotional function based on the vertigo disorder scale made abroad.DESIGN: Cross-sectional survey, interview evaluation after pretest, internal consistency, retest consistency and construct validity were measured by the method of Chronbach's c, Pearson correlation coefficients and factor analysis, respectively.SETTING: Clinical Epidemiology/DME Center, Guangzhou University of Traditional Chinese Medicine.PARTICIPANTS: Totally 111 consecutive patients with CSA, 30 men and 81 women aged 31 to 72 years, in the Clinic for Cervical Spondylosis of Guangdong Provincial Hospital of Traditional Chinese Medicine were recruited from May 2001 to March 2002. Altogether 36 patients had risk factors of vertebral-base artery atherosclerosis. There were 14 cases of mild vertigo, 61 cases of moderate vertigo, and 36 cases of severe vertigo. Informed consent was obtained from the participants.METHODS: FS-CSA was made according to clinical actual condition Functional status (going for a walk during the day by yourself, walking around the house in the dark, doing strenuous housework, social activity,traveling for business or recreation, getting into or out of bed, reading books or newspaper; each item was divided into three categories "No,anxious, worried about your illness, and feeling frustrated; each item consisted of three categories "No, Sometimes, and Yes"). Patients with CSA were evaluated by means of interview and 14 of them were retested. Internal consistency, construct validity and correlation coefficients of the scale were measured with SPSS 10.0 software.tional status dimensionality, emotional functional dimensionality as well as internal consistency of the total scale in FS-CAS: Chronbach's α value was 0.875 9, 0.645 3 and 0.859 5, respectively; retest consistency value was extracted common factor was consistent with the two dimensionalities.tool quantifies the life quality of the patients with CSA and can make a uate curative effects of drugs or screen the best treatment scheme; therefore, it has clinical application value.
3.Curative effect analysis of D2 lymphadenectomy for distal gastric cancer with pancreas as the central landmark
Yongcheng WEI ; Tianwei LIANG ; Yi SUN
Journal of Regional Anatomy and Operative Surgery 2013;(6):650-651
Objective To investigate the feasibility and clinical significance of D2 lymphadenectomy for distal gastric cancer in which the pancreas were regarded as the central landmark. Methods 26 patients of advanced distal gastric cancer were performed D2 lymphade-nectomy centered on the pancreas from March 2012 to February 2013. The operation time, amount of bleeding,number of lymph nodes,and postoperative complications were recorded. Results All the 26 patients underwent the operation successfully. The amount of bleeding was 50~200 mL(averagely 110 mL),and the number of lymph nodes which were cleaned was 16~35 (averagely 26). One patient had intra-ab-dominal hemorrhage and one patient had lymphorrhagia after the operation,and they were cured finally. There was no local recurrence,no dis-tant metastasis,and no death case occurred during the follow-up. Conclusion D2 lymphadenectomy for distal gastric cancer with pancreas as the central landmark is safe and feasible, and it is of lower incidence of complications .
4.Effects of dexmedetomidine on expression of phosphor-CREB in isolated hippocampal neurons of fetal rats
Yi WEI ; Junhua HU ; Yubing LIANG ; Yi QIN ; Yubo XIE
Chinese Journal of Anesthesiology 2014;34(11):1309-1311
Objective To evaluate the effects of dexmedetomidine on the expression of phosphor-cAMP response element binding protein (p-CREB) in isoloated hippocampal neurons of fetal rats.Methods SpragueDawley rats on 16-18 days of gestation were sacrificed and the fetal rats were obtained.The hippocampi of fetal rats were isolated and hippocampal neurons were seeded in culture medium for 8 days.The cells were then divided into 4 groups (n =12 each) using a random number table:control group (group C),dexmedetomidine 0.001 μmol/L group (group D1),dexmedetomidine 0.010 μmol/L group (group D2),and dexmedetomidine 0.100μmol/L group (group D3).In D1.3 groups,dexmedetomidine with the final concentrations of 0.001 μmol/L,0.010 μmol/L,and 0.100 μmol/L was added to the culture medium,respectively,and then the cells were incubated for 3.5 h.The apoptosis in hippocampal neurons was detected by flow cytometry.The expression of p-CREB in hippocampal neurons was determined by RT-PCR and Western blot.Results Compared with group C,apoptosis rate was significantly decreased and the expression of p-CREB was up-regulated in D1.3 groups.Conclusion Dexmedetomidine inhibits apoptosis in isolated hippocampal neurons of fetal rats by up-regulating the expression of p-CREB.
5.A model-based meta-analysis to compare urate-lowering response rate of febuxostat and allopurinol in gout patient.
Yi SUN ; Liang LI ; Tian-Yan ZHOU ; Wei LU
Acta Pharmaceutica Sinica 2014;49(12):1674-1683
This study aims to compare the urate-lowering response rate of febuxostat and allopurinol in gout patient using a model-based meta-analysis. The literature search identified 22 clinical trials of gout with a total of 43 unique treatment arms that met our inclusion criteria, and a total of 6 365 gout patients were included in the study. The response rates of allopuriol and febuxostat were characterized by Tmax model and Emax model respectively, and the effect of baseline serum uric acid (sUA) and patient type on the drug effect was tested. The results showed that allopurinol can reach an average maximum response rate of 50.8% while febuxostat can reach a 100% response rate within a very short time, and the ED50 was 34.3 mg. Covariate analysis revealed that baseline sUA has a negative effect on response rate of allopurinol, and a positive effect on the predicted ED50 of febuxostat. For patients who had shown inadequate response to prior allopurinol treatment, the average response rate was about half that of the allopurinol responder patients.
Allopurinol
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therapeutic use
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Febuxostat
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Gout
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blood
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drug therapy
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Gout Suppressants
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therapeutic use
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Humans
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Thiazoles
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therapeutic use
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Uric Acid
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blood
6.Application of spleen-preserving splenic hilar lymph nodes dissection in radical resection for advanced proximal gastric cancer
Yi SUN ; Tianwei LIANG ; Yongcheng WEI ; Jinghua LI
Journal of Regional Anatomy and Operative Surgery 2014;(1):66-67,68
Objective To investigate the feasibility of spleen-preserving splenic hilar lymph nodes dissection on the radical resection for advanced proximal gastric cancer. Methods Six patients with advanced proximal gastric cancer were performed D2 lymphadenectomy from May 2012 to May 2013 in our hospital. The operation time,bleeding quantity,the number of lymph nodes,postoperative complications were re-corded. Results The surgery was successful. The intraoperative blood loss was 50 ~250 mL,with the average of 120 mL. The number of lymph nodes was 3~9 after the operation with the average of 5. One patient supervened with lymphorrhagia and recovered after treatment. During the follow-up period from one month to one year, no local recurrence and distant metastasis occurred, nor the death. Conclusion Conducting theD2 lymphadenectomy for the patients with the advanced proximal gastric cancer can preserve the spleen while safely and throughly dissect the splenic hilar lymph nodes.
7.Studies on Establishing and Optimizing Conditions of Concentration Virus in Water Body
Bao-Jin PAN ; Jun-Yi LIU ; Mei-Liang WEI ;
Microbiology 1992;0(06):-
In this experiment six methods,calcium chloride(CaCl_(2)) precipitation,polyethylene glycol(PEG,pH7.0) precipitation,polyethylene glycol(PEG,pH11.5) precipitation,aluminum chloride(AlCl_(3)) precipitation,Amicon Utcra centrifugal filter devices and cellulose nitrate membrane were used to concentrate the vaccine poliovirus type 1(PV_(1)) added to water body;experimental conditions for concentration were selected and optimized.The results showed that two methods,CaCl_(2)and PEG(pH 7.0) precipitation were suitable for concentrating virus in large volumes of water while amicon utcra centrifugal filter devices for small ones.The virus recovery of the three methods reached a 100% rate.
8.Effect of luteinizing hormone vs follicular stimulating hormone ratio on anti-Müllerian hormone secretion and folliculogenesis in patients with polycystic ovarian syndrome
Yi LI ; Lina WEI ; Yonglao XIONG ; Xiaoyan LIANG
Chinese Journal of Obstetrics and Gynecology 2010;45(8):567-570
Objective To investigate characteristics of anti-Müllerian hormone (AMH) secretion and mechanism of aberrant folliculogenesis by the ratio of luteinizing hormone (LH)/follicle-stimulating hormone(FSH) in polycystic ovarian syndrome (PCOS) patients. Methods Base on the ratio of LH/FSH,total 95 patients with PCOS were divided into two groups,including 49 cases in higher ratio group (LH/FSH≥2) and 46 cases in normal ratio group (LH/FSH < 2) matched with 62 infertile cases with tubal factor and regular menstruation as control group. Body mass index (BMI) were calculated in all objectives. The serum AMH were detected by enzyme linked immunosorbent assay(ELISA). Ovarian sexual hormones,fasting blood glucose, insulin and lipid were measured by chemiluminescence method. The correlation between AMH and metabolic index was analyzed by multilinear regression. Results (1) AMH: the serum level of AMH were (7.2±4. 3) μg/L in higher LH/FSH group, (5. 2±3. 8) μg/L in normal LH/FSH group and (3.7 ±2. 2) μg/L in control group, which all reached significant difference among those 3 groups(P < 0. 01). (2) The correlation between AMH and biological metabolic index: estradiol (E2) was negatively correlated with serum level of AMH in higher LH/FSH ratio group (r = -0. 318). The serum level of AMH were positively correlated with BMI, fasting glucose, homeostasis model assessment insulin resistance index (HOMA-IR) in normal LH/FSH ratio group (r = 0. 493,0. 362,0.303). After controlling affect factors, serum levels of AMH were positively correlated with LH/FSH in higher LH/FSH ratio group (r = 0. 301), but negatively correlated with E2 (r = -0. 429). However, in normal LH/FSH group, serum level of AMH was only positively correlated with BMI (r = 0. 428). Conclusion The PCOS patients with higher LH/FSH ratio are primarily caused by hypothalamic-pituitary dysfunction, while the PCOS patients with normal LH/FSH ratio are mainly caused by metabolic disorders.
9.Proliferation of desmoglein 3-stimulated T lymphocytes from patients with pemphigus vulgaris
Jie HU ; Zhongxiang WEI ; Yi JIANG ; Zaifu LIANG ; Long GENG
Chinese Journal of Dermatology 2010;43(7):474-477
Objective To investigate the impact of desmoglein 3 (Dsg3) on the proliferation of peripheral T lymphocytes from patients with pemphigus vulgaris (PV).Methods Peripheral blood mononuclear cells (PBMCs) were obtained from 12 patients with PV and 22 normal human controls,cultured with or without the presence of Dsg3 or phytohemagglutinin for 3 days.Flow cytometry was performed to detect the changes of T-lymphocyte subsets in PBMCs stimulated with Dsg3 and proliferation of T-lymphocytes.Results In patients with PV,the percentage of Th2 and Th1 cells was 12.17%±5.32% and 4.08%±1.50%,respectively in Dsg3stimulated PBMCs,9.84%±5.41% and 3.91%±1.38%,respectively in non-stimulated PBMCs.Increased percentage of Th2 cells was observed in Dsg3-stimulated and non-stimulated PBMCs from patients with PV compared with those from normal human controls (both P<0.05).After stimulation with Dsg3,there was a significant proliferation of T cells from patients,and the proliferation rate of CD4+T cells was 4.65%±3.28%,which was significantly higher than that from normal controls(P<0.05).Conclusion Dsg3 can induce the specific proliferation of CD4+T cells,especially Th2 type CD+4 T cells,from patients with PV.
10.Basic research and clinical application of musculocutaneous perforator flaps
wei-jie, SU ; yun-liang, QIAN ; yi-xin, ZHANG
Journal of Shanghai Jiaotong University(Medical Science) 2006;0(07):-
The use of flaps for plastic and reconstructive surgery is very popular today.More and more surgeons have realized that the blood supply plays an important role in the design and survival of flaps.After Ian McGregor and Ian Jackson first introduced the axial flaps into clinics,Mathes divided the flaps into two types in 1981,the fasciocutaneous perforator flaps and musculocutaneous perforator flaps.In 1989,the concept of perforator flap was first brought into clinical practice.With the development of microsurgery and anatomy,the epidermis of human skin is divided into areas based on the vascular anatomy.A new century of musculocutaneous perforator flaps has been established.The terminology,classification,characteristics and application of musculocutaneous perforator flaps are described in this paper.