1.Effect of short-term continuous subcutaneous insulin infusion treatment on beta-cell function, blood fat and C-reactive protein of newly diagnosed type 2 diabetes mellitus patients
Clinical Medicine of China 2014;30(8):863-865
Objective To investigate the effect on short-term continuous subcutaneous insulin infusion (CSII) treatment on beta-cell function,serum triglyceride(TG),C-reactive protein(CRP) and serum insulin like growth factor-1 (IGF-1) of newly diagnosed type 2 diabetes mellitus(T2DM) patients.Methods Thirty-two newly diagnosed T2DM patients with fasting plasma glucose(FPG) > 11.1 mmol/L were treated with CSII for 2 weeks.FPG,2 h postprandial blood glucose (2hPG),fasting insulin (FINS),2 h postprandial insulin (PINS),fasting C peptide (FC-P),2 h postprandial C peptide (PC-P),glycosylated hemoglobin (HbA1 c),Homa-β,Homa-R,TG,CRP and IGF-1 were measured and compared before and after CSII.Results (1) Compared with that of before treatment,the levels of FPG,2hPG,HbA1c,PINS and PC-P in patients after treatment were dramatically improved(t =12.04,11.57,7.61,20.77,6.16; P < 0.05),and Homa-β increased from (23.0 ±16.2) to (71.0±23.8)(t=9.46,P<0.05),while Homa-IR significantly decreased from (6.8 ±2.1) to (3.9 ± 2.6) (t =4.81,P < 0.05).(2) The levels of TG and CRP significantly decreased from (1.50 ± 0.32) mmol/L,(3.14±1.14) to (1.29±0.31) mmol/L,(1.95 ±0.52) mg/L(t =26.73,23.62;P <0.05).The levels of IGF-1 significantly increased from (341 ± 16) μg/L to (471 ± 17) μg/L (t =8.65,P < 0.05).Conclusion The excellent glycemic control,improvement of lipid metabolism,anti-inflammatory and improvement of beta-cell function can be achieved with short-term CSII intensive therapy in newly diagnosed T2DM patients with severe hyperglycemia.
2.Effects of GLP-1 treatment on protection of B cells in Otsuka Long-Evans Tokushima fatty rats
Journal of Peking University(Health Sciences) 2003;0(04):-
Objective: To investigate the effect of GLP1 on the blood glucose in type 2 diabetic rats,and its protective effects on the islet B cells.Methods: Thirty rats were divided into three groups: spontaneous type 2 diabetes animal model OLETF rats,GLP-1 [from the twelfth week 56 ?g/(kg?d),sc] therapy group and LETO rats as control.In the 14th and 20th weeks,standard OGTT including fast and 2 h-plasma glucose were measured respectively.In the 14th weeks,3 rats from each group were killed randomly,and the rest of the rats were killed until the 20th week.Immunostaining with the marker of PCNA,TUNEL,and insulin assessed metabolic changes in the islet. Ultrastructure of the B cell was observed with the electronic microscope.Results: In the 14th and 20th week,AUC for insulin were higher in treated animals(10.86?1.56 vs.9.07?1.28,P
3.Expression and significance of estrogen receptor- β and tyrosine kinase receptor- B in endometriosis associated ovarian cancer
Chinese Journal of Postgraduates of Medicine 2017;40(5):471-473
Malignant transformation of ovarian endometriosis is known as endometriosis associated ovarian cancer (EAOC). However, the carcinogenic pathways by which EAOC develops remained poorly understood, and numerous studies found the risk factors of malignant transformation. Recent studies have provided evidence that estrogen receptor-β(ER-β) can influence the proliferation, motility and apoptosis of ovarian cancer cells. The signal pathway of tyrosine kinase receptor-B (TrkB)/brain-derived neurotrophic factor (BDNF) has a direct relation with the endometriosis, and its anti-anoikis plays a prerequisite role in proliferation of cancer. In the nervous system, estradiol and estrogen receptor can be combined through a variety of ways to promote BDNF/TrkB high expression and activity enhancement. Therefore,the relationship between high-risk factors of malignant transformation and ER-β expression and ER-β and TrkB/BDNF signal pathways need to be explored in EAOC.
4.Effectiveness of Microresection Combined with Radiofrequency Ablation under Laryngoscope and Rigid Telescope for Laryngeal Precancerosis
Xiaoyun QIAN ; Chenjie YU ; Xiaohui SHEN
Chinese Journal of Minimally Invasive Surgery 2001;0(02):-
Objective To investigate the effectiveness of microresection combined with radiofrequency ablation under laryngoscope and rigid telescope for laryngeal precancerosis. Methods Fifty-one patients with laryngeal precancerosis, which was diagnosed pathologically, were treated with microresection combined with radiofrequency ablation under laryngoscope and rigid telescope. The patients were followed up for over 6 months. Results During a mean of 26-month follow-up (6 months to 4.5 years), 7 of the patients had recurrence (vocal cord leukoplakia in 3, atypical hyperplasia in 2, and laryngeal papilloma in 2); 4 had carcinomatous change (vocal cord leukoplakia in 1, atypical hyperplasia in 2, and laryngeal papilloma in 1);and 2 patients developed laryngeal web after surgical treatment for bilateral vocal cord leukoplakia. One month after the operation, the Jitter, Shimmer, and NNE were decreased significantly (P
5.Influence of plasma lipid level on the accumulation of glomerular extracellular matrix in OLETF diabetic rats
Yu CHEN ; Xiaohui GUO ; Dingqiong PEN
Chinese Journal of Diabetes 1994;0(02):-
Objective To investigate the effect of changes in plasma lipid levels on the accumulation of glomerular extracellular matrix in type 2 diabetic rats.Methods Rats were divided into three groups,namely,normal control,diabetes mellitus treated with Fenofibrate,which was gastrically administrated in the dose of 20mg?kg -1 ?d -1 for 22 weeks.A quantitative analysis of the components of glomerular extracellular matrix (ECM) were performed with immunoperoxide (ABC) method and the computer imagine analysis system.Results The result showed that diabetic rats had significantly higher plasma lipid levels and accumulation of ECM including collagen Ⅳ,laminine and fibronectin than the normal control ( P
6.Food allergy and the role of probiotics in its prevention and treatment
Xiaohui YU ; Wen YAO ; Weiyun ZHU
Parenteral & Enteral Nutrition 2004;0(05):-
With the improvement of living conditions,people pay more attention to food sanitation,following which the incidence rate of food allergy is higher and higher.Food allergy threatens public health seriously.It is caused mainly by dominance of T helper type 2-based immune responses,which breaks the dynamic balance of Th1/Th2 immune responses and resultes in over secreting of IL-4,IL-5 and IL-13,production of specific antibody IgE,degranulation of mast cells,alteration of intestinal microflora and so on.At present,a lot of investigations have been reported,of which the probiotics therapy attracted more attention.As the indigenous flora,probiotics could not only prevent and treat food allergy but could also modulate immune responses and recover the dynamic balance of it via secreation of cytokines such as IFN-?,IL-10,TGF-?.
7.Study on Quality Standard for Kechuanling Plaster
Mei GUO ; Xiaohui YU ; Weilin CHEN
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(03):-
Objective To establish the quality control standard of Kechuanling Plaster. Methods Semen sinapis in Kechuanling Plaster was identified by TLC. The content of ?-asarone in Kechuanling Plaster was identified by HPLC. Results Semen sinapis in Kechuanling Plaster could be detected by TLC. ?-asarone shows a good linear relationship at range of 0.132~0.308 ?g (r=0.9999). The average recovery was 101.7% and RSD was 2.0%. Conclusion The method was simple, specific and accurate. This study provide a method for the quality control of Kechuanling Plaster.
8.Mutations of androgen receptor gene in prostate cancer tissues
Xiaoling YU ; Jian LU ; Xiaohui WANG
Chinese Journal of Urology 2001;0(11):-
Objective To study the relationship between the mutation of androgen receptor(AR) gene and the development of human prostat e cancer. Methods All exons of AR gene except trineucl eic acid repeat polymorphism were amplified by PCR and selected by single strand conformation polymorphism( SSCP) in 27 paraffin-embedded slides of human pros tate cancer. The abnormal mobility shifts were further detected by direct DNA c ycle sequencing. Results Three abnormal mobility shifts respectively in exon A.D.G were found by SSCP in three prostate cance r tissues. One point mutation was found in 296 amino acid (C 966→A,Ser29 6Arg) from exon A.This point mutation has not been reported before. Conclusions This mutation might change the transcriptive activity of AR, and it might be correlated to PCa progression.
9.Effect of leptin on protecting rat islet ?-cells against lipotoxicity induced by free fatty acid
Yu TONG ; Xiaohui GUO ; Yan GAO
Chinese Journal of Endocrinology and Metabolism 1986;0(03):-
Objective To observe whether leptin protects rat islet ?-cells from lipotoxicity induced by free Taity acid ( FFA). Methods Pancreatic islets were isolated from Wistar rats. Isolated islets were divided into 4 groups; ( 1 ) Control group; (2) Leptin group (murine recombinanl leptin 100?g/L) ; (3) FFA group [0. 25 mmol/L long chain fatty acid (oleate: palmitate =2: 1 ) ] ; (4) FFA + Leptin group (both leptin and FFA were added to the culture medium). Alter being cultured lor 72 hours, triglyceride ( TG) content in islets, insulin secreted under basal and glucose stimulated conditions, and the mRNA expression of fatty acid oxidase-carnitine palmityl transferase- 1 ( CFT- I ) , fatty acid synthetase-acyl-CoA carboxylase ( ACC) , peroxisome proliferator activated receptors ( PPAR)a and PPARr in islets were examined. Results ( 1 ) TC content in islets was elevated in FFA group as compared with control group ( P
10.Expression of survivin gene in the dysplasia of gastric mucous epithelium and the gastric carcinoma and its significance
Haijun REN ; Tianqing LIU ; Xiaohui YU
China Oncology 1998;0(01):-
Purpose:To study the expression of survivin a nd its relationship with the expression of bcl-2,p53,PCNA in the dysplasia of gastric mucous epithelium and gastric carcinoma.Methods:The expression of survivin,bcl-2,p53,PCNA was detected in 60 cases of gastric carcinoma, 30 cases of dysplasia of gastric mucous epithelim and 8 cases of normal gastric mucous tissue by using immunohistochemical SP method. Results:The positive rates of survivin were 10%,13%,80% and 82%, respectively, in mild, moderate and svere dysplasia and gastric carcinoma. The positive rates of survivin in mild and moderate dy splasia were significantly lower than in severe dysplasia and carcinoma (P0 05). There was a relationship between survivin gene expression with the invasive depth of gastric carcinoma. lymph node metastases and survival stage (P