1.Efficacy and safety of vildagliptin and metformin combination therapy in type 2 diabetes
Chinese Journal of Endocrinology and Metabolism 2011;27(12):后插1-后插4
Vildagliptin,a dipeptidyl peptidase-4 (DPP-4) inhibitor,is always used in combination with metformin.Data from multiple clinical trials showed that vildagliptin and metformin combination therapy can improve HbA1c,fasting blood glucose,and postprandial blood glucose without weight gain,good gastrointestinal (GI)tolerance,and no increase in the incidence of hypoglycemia.Vildagliptin increases plasma levels of glucagon-like peptide-1 ( GLP-1 ).When glucose levels are above normal fasting levels,enhanced GLP-1 levels stimulate insulin secretion.Mefformin has been shown to increase insulin sensitivity and inhibit hepatic glucose production.The effect of vildagliptin to increase plasma levels of intact GLP-1 was enhanced in patients receiving concomitant metformin.
2.Study on Locating the Entrance Spot of Pedicle of Lumbar Vertebra and the Successful Rate of Placement Nail One Time
Zheng YU ; Zhenyu LI ; Hong ZHENG
Journal of Chinese Physician 2001;0(08):-
Objective To explore the effects of various location methods on the successful rate of placement nails by the entrance spot of lumbar vertebra pedicle. Methods The clinical data of 105 patients with 462 times of internal nail fixation of lumbar vertebra pedicle were analyzed, and the successful rates of placement nails one time were compared among 5 location methods. Results 462 times of internal nail fixation of lumbar vertebral pedicle were performed safely. Postoperative X-ray imagining showed that 322 nails were located in the middle of pedicle of lumbar vertebra, 58 nails in its inferior part, and 82 nails in its superior part. The successful rate of placement nails one time by the location method of four quadrants technique was 86.9%, which was significantly different compared with the other 4 location methods(P
3.Effect of danazol on rat ectopic endometrium.
Hui ZHENG ; Hong-yi LI ; Jun DONG
Chinese Journal of Applied Physiology 2005;21(1):67-68
Animals
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Danazol
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pharmacology
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Endometriosis
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drug therapy
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Endometrium
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drug effects
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Female
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Interleukin-6
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metabolism
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RNA, Messenger
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genetics
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Rats
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Rats, Sprague-Dawley
5.Advances in YAP on stemness maintenance of cancer stem cell Properties
Haixin LI ; Na HE ; Hong ZHENG
Chinese Journal of Clinical Oncology 2015;(14):728-731
Yes-associated protein (YAP) is a multifunctional protein that can interact with different transcription factors to acti-vate gene expression. YAP, as the key transcription protein of Hippo pathway, has made important contribution to the control of the or-gan size, stem cell biology, and tissue-specific stem cell self-renewal. In the Hippo pathway, MST1/2 kinases, together with the adaptor protein SAV, phosphorylate LATS1/2 kinases. YAP is phosphorylated and inhibited by the activated LATS1/2, a key component of the Hippo tumor suppressor pathway. In recent years, numerous studies have shown that the high expression of YAP in the embryonic stem cells, neural stem cells, and hematopoietic stem cells can maintain the cancer stem cell;and YAP has become the marker of cancer stem cells. Meanwhile, more and more studies indicate that the disorder of Hippo-YAP signaling pathway may be associated with cancer stem cells. In this review, we mainly discuss the role of the Hippo pathway in the stem cell biology and its potential implications in tis-sue homeostasis and cancer.
6.The correlation between serum uric acid level and early-phase insulin secretion in subjects with normal glucose regulation
Le LU ; Fenping ZHENG ; Hong LI
Chinese Journal of Internal Medicine 2016;55(5):345-348
Objective To investigate the correlation between serum uric acid (SUA) level and early-phase insulin secretion in subjects with normal glucose regulation (NGR).Methods Totally 367 community NGR residents confirmed by a 75g oral glucose tolerance test were enrolled.The insulin resistance index (HOMA-IR) and the early-phase insulin secretion index after a glucose load (ΔI30/ΔG30) were used to estimate the insulin sensitivity and the early-phase insulin secretion, respectively.The subjects were divided into 4 groups according to the SUA level quartiles.Differences in early-phase insulin levels, ΔI30/ΔG30, and HOMA-IR were compared among the 4 groups.Results Age, BMI, waist circumference, systolic blood pressure, diastolic blood pressure, fasting insulin (FINS), 30 minutes postprandial insulin (30 minINS), 2 hours postprandial insulin(2hlNS), HOMA-IR and TG levels increased across the rising categories of SUA levels, while the HDL-C was decreased across the SUA groups (P < 0.01).The SUA level was positively correlated with age (r =0.157, P < 0.01), BMI (r =0.262, P < 0.01), waist circumference(r =0.372, P < 0.01), systolic blood pressure (r =0.200, P < 0.01), diastolic blood pressure(r =0.254,P < 0.01) , 30 minutes postprandial plasma glucose(r =0.118 ,P =0.023), FINS(r =0.249, P < 0.01), 30minlNS (r =0.189, P < 0.01) ,2hlNS (r =0.206, P < 0.01), glycosylated hemoglobin (HbAlc, r=0.106,P =0.042), HOMA-IR(r =0.244,P <0.01), TG(r =0.350,P <0.01), ΔI30/ΔG30 (r =0.144, P < 0.01), and negatively correlated with HDL-C level (r =-0.321, P < 0.01).Multiple stepwise regression analysis showed that SUA (β =0.292, P < 0.01) and HOMA-IR (β3 =29.821, P < 0.01)were positively associated with ΔI30/ΔG30.Conclusion SUA level is closely related with the early-phase insulin secretion in NGR subjects.
7.An optimized modification of TTC staining method for better detection of myocardial ischemia-reperfusion injury in rats
Lianghui LI ; Wenhua CHEN ; Hong ZHENG
Acta Laboratorium Animalis Scientia Sinica 2014;(5):75-78
Objective To evaluate an improved modification of TTC staining method for measuring myocardial in-farct size after ischemia-reperfusion in rats.Methods Twenty healthy SPF male 8-week-old SD rats were randomly divided into two groups:Group A with conventional TTC staining, and group B with the modified TTC staining method for measuring myocardial ischemia-reperfusion injury.The infarct size was caculated and the serum cTnI levels were determined.Results The infarcted myocardium was well detected in both groups A and B.There were no significant differences in the myocardial infarct sizes measured in the groups A and B (48.69 ±5.37 %vs.47.41 ±3.28%, P>0.05).There were no significant differences in the serum cTnI levels assayed in the groups A and B (4.51 ±0.88 ng/mL vs.4.70 ±0.71 ng/mL, P>0.05). But compared with the group A, the color contrast of stained myocardial slice and the distinguishing infarction area and non-infarction area were much clearer in the group B.Conclusions Our modified TTC staining technique using in vivo staining is an economic, convenient, fast and efficient method, being easy to control, time-saving and inexpensive, and enhances the staining effect in evaluating the size of myocardial ischemia/reperfusion injury more accurately.
8.Clinical Observation on Vascular Headache Treated by Auricular Point Sticking Therapy
Sailin ZHENG ; Fujuan LI ; Jue HONG
Journal of Acupuncture and Tuina Science 2011;09(2):92-94
Objective: To evaluate the clinical effect of auricular sticking therapy in treating vascular headache. Methods: Fifty patients with vascular headache were randomized into two groups, 25 cases in each. The treatment group received auricular sticking therapy with magnetic pearls, and the control group was treated by Flunarizine Hydrochloride, 30 d as a treatment session, and the results were measured after one treatment session. Result: The total effective rate was 92.0% in the treatment group while 60.0% in the control group, and the difference was significant (P<0.01). A marked decrease of blood pressure was detected in the treatment group (P<0.05). The mean velocity in middle cerebral artery and anterior cerebral artery both changed significantly (P<0.01). Conclusion: Auricular sticking therapy can significantly improve the condition of vascular headache, as well as reduce blood pressure and help cerebral blood flow.
9.Evaluation of different factors involved in volume treatment of hypovolemic shock
Yimei LI ; Hong ZHENG ; Gulping XU
Chinese Journal of Anesthesiology 1996;0(09):-
time of infusion. Data analysis indicated that A1B3C2 was the best combination of the 3 factors according to the degree of lung injury. Conclusion Adequate amount of HES 200/0.5 infused during compensated stage of hypovolemic shock produces best result.
10.Synthesis of oligopeptide of HDV antigen and its application in diagnosis
Hong ZHENG ; Qifen LI ; Xiaohong LIN
Journal of Third Military Medical University 1988;0(05):-
A 27-peptide,a fragment of hepatitis delta antigen(HDAg),was synthesized and used to develop an ELISA method for ihe detection of anti-HD.It was found that positive anti-HD reaction occurred between the coated 27-peptide and a stored sample of serum which was known anti-HD positive.Absorption test revealed that the synthetic peptide competed with natural HDAg for anti-HD,suggesting that the peptide possessed the antigenicity similar to that of natural HDAg.The antigenicity of the synthetic peptide was quite specific wihtout cross reaction with normal human and mouse sera and with anti-HA.anti-HB and anti-HC sera.Among 300 blood donors,there was only 1 case(0.33%)anti-HD positive with an ALT level 2 times higher than normal.In 41 cases of non-B hepatitis and 52 cases of HAV hepatitis,none was anti-HD positive.In 211 cases of various types of HBV hepatitis,21 were(9.95%)anti-HD positive,among whom 2/82(2.5%)werehealthy HBV carriers,6/43(13.95%)were patients with a-cute icteric hepatitis,6/60(10.00%)were patients of chronic active hepatitis,4/18(22.20%)were patients of severe hepatitis,and 3/8(37.50%)were those with liver cirrhosis.These results were consistent with those in our previous reports.