2.Role of Caveolin-1 in glargine in anti-inflammation and glycemic metabolism improvement of type 2 diabetic mice
Hangya PENG ; Haicheng LI ; Shuo LIN ; Wen ZENG ; Chuwen LIN ; Keyi LIN ; Longyi ZENG
The Journal of Practical Medicine 2017;33(8):1247-1249
Objective To investigate the role of glargine in glucose metabolism improvement and antiinflammation of skeletal muscle in Caveolin-1 silenced type 2 diabetic mice.Methods Multiple low doses of streptozotocin (STZ) intraperitoneal injection and high-fat high-glucose (HFHG) were used to induce type 2 diabetic mice model.The mice were divided into normal control group (NC group) and type 2 diabetic model group (T group).Then according to virus injection and glargine treatment,T group were further divided into type 2 diabetes group (T2DM group),type 2 diabetes with insulin treatment group (insulin group),Caveolin-1 silenced with insulin treatment group (LV-CAV1 group),and scramble virus with insulin treatment group (LV-GFP group).Glucose metabolism was accessed by the fluctuation of blood glucose.TNF-α protein expression in skeletal muscle was detected by Western blot.Results The glycemic control of LV-CAV1 group needed more dosages of glargine (P < 0.05).The expression of TNFαin skeletal muscle was elevated in LV-CAV 1 group than that in LV-GFP and insulin group (P < 0.05).Conclusion The anti-inflammation function and glycemic metabolism improvement of glargine may be associated with the expression of Caveoin-1 in skeletal muscle.
3.Blood Glucose Levels and Severity of Coronary Stenosis in Hypertensive Patients
Xiaoling PENG ; Zepeng LIN ; Zhiwei ZHANG ; Guanglin JIN ; Changnong PENG ; Wen WANG
Chinese Journal of Hypertension 2006;0(12):-
Objective To investigate the relationship between blood glucose levels and severity of coronary stenosis in hypertensive patients. Methods Blood pressure, fasting plasma glucose, 2 h plasma glucose, clinical features and coronary angiographic findings were analyzed retrospectively in 540 patients with essential hypertension. Acoording 2 h plasma glucose, patients were stratified into three group: group 1: 2h plasma glucose
5.Construction,Identification and Expression of Recombinant Eukaryotic Vector pCAG-IRES-SHIP-GFP on Porliferation of Leukemia Cell Line K562
Lin YANG ; Jian-Min LUO ; Xiao-Jun LIU ; Zhi-Yong CHENG ; Shu-Peng WEN ; Xiao-Yang YANG ; Xue-Wen WU ;
China Biotechnology 2006;0(06):-
The aim was to construct and identify the mammalian expression vector of pCAG-IRES-SHIP-GFP and to detect whether it could express in human acute leukemia cell line K562.The cDNA fragment of SHIP obtained by RT-PCR was inserted into pCAG-IRES-GFP.The recombinant plasmid was confirmed by restriction enzyme digesiton,PCR and DNA sequecing.pCAG-IRES-SHIP-GFP was transfected into K562 cells with lipofectamine 2000.The expression of SHIP was determined by GFP fluorescence and Western blot analysis.FQ-PCR was used to quantitate SHIP mRNA.The expression of p-Akt,Akt were determined by Western blot.PI were tested by flow cytometry and MTT to verify whether exogenous SHIP could inhibit proliferation of K562 cells.The results showed that the correct constrution of the recombinant plasmid pCAG-IRES-SHIP-GFP has been shown by restriction enzyme digestion,PCR and DNA sequencing.pCAG-IRES-SHIP-GFP could express SHIP protein in K562 cells.The K562 cells viability after transfected with SHIP gene droped down.Western blot analysis showed that phospha-Akt308 and Akt473 were reduced to 38.7% and 68% respectively.It was concluded that the vector of pCAG-IRES-SHIP-GFP has been successfully constructed and it can be expressed in K562 cells.The expression of exogenous SHIP gene can lead to apoptosis of K562 cells by down-regulating the p-Akt expression.What found here might be one of the mechanisms involved in the pathogenesis of leukemia.
7.Pharmacological study on free anthraquinones compounds in rhubarb in rats with experimental acute pancreatitis.
Lin ZHU ; Jian-Lei ZHAO ; Xiao-Hang PENG ; Mei-Hua WAN ; Xi HUANG ; Wen-Fu TANG
China Journal of Chinese Materia Medica 2014;39(2):304-308
OBJECTIVETo verify the pharmacological hypothesis of prescriptions by studying the targeted distribution of major components in stewed rhubarb in the rat model with acute pancreatitis (AP).
METHODNormal SD rats (control group, n = 5) and the AP model induced with intraperitoneal cerulein (model group, n = 5) were taken as the experimental objects. Rats of the two groups were orally administered with stewed rhubarb granules (20 g x kg(-1)). Their heart, liver, spleen, lung, kidney and pancreas were collected two hours after the administration. Such constituents as emodin, chrysophanol, physcion, rhein and aloe-emodin and their concentrations in each tissue homogenate were detected by high performance liquid chromatography-mass-mass.
RESULTAloe-emodin and physcion in stewed rhubarb whose concentrations in liver and kidney of normal rats were higher than that in pancreatic tissues, while the distribution spectrums and concentrations of the remaining components in pancreatic tissues had no significant difference with that of other organs. The concentrations of emodin, aloe-emodin, rhein and chrysophanol in stewed rhubarb in pancreatic tissues of the AP model group were higher than that in other tissues and organs, while their concentrations in pancreatic, renal and splenic tissues were notably higher than that in the normal group.
CONCLUSIONIn the conditions of AP, effective components in stewed rhubarb show a targeted distribution feature in pancreas, which provides experimental basis for the pharmacological hypothesis of prescriptions.
Acute Disease ; Animals ; Anthraquinones ; pharmacokinetics ; pharmacology ; therapeutic use ; Disease Models, Animal ; Drugs, Chinese Herbal ; pharmacokinetics ; pharmacology ; therapeutic use ; Male ; Organ Specificity ; Pancreatitis ; drug therapy ; metabolism ; Rats ; Rats, Sprague-Dawley ; Rheum ; chemistry
8.Multibacillary leprosy: erythema as the only clinical presentation.
Chinese Medical Journal 2012;125(3):558-560
Leprosy is a chronic granulomatous infection caused by Mycobacterium leprae, which primarily affects the skin and peripheral nerves. In this article, we present a 45-year-old man and a 39-year-old women who suffered from asymptomatic irregular erythemas on their trunk and extremities. Since both patients denied the history of exposure to leprosy patients and were absent clinical signs of superficial sensation dysfunction and enlarged peripheral nerves, they were diagnosed of mycosis fungoides and livedo reticularis clinically. Nevertheless the biopsies of erythemas showed perineural and periadnexal foamy-cell granulomas in the dermis and Fite staining revealed a large number of acid-fast bacilli. A diagnosis of multibacillary leprosy was made finally. These cases revealed that since leprosy is still epidemic in some remote area in China and in other developing countries and its clinical manifestations may be very weird sometimes, the dermatologists should be alert of it and skin biopsy could confirm the diagnosis.
Adult
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Erythema
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pathology
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Female
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Humans
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Leprosy, Multibacillary
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diagnosis
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pathology
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Male
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Middle Aged
9.Epidemiologic features of 183 children with fall-from-height injury
Peng JIN ; Lielie ZHU ; Weiyang MENG ; Da PAN ; Hao WEN ; Luyang LIN ; Daqing CHEN
Chinese Journal of Trauma 2014;30(2):177-179
Objective To detect the epidemiologic features of pediatric patients with fall from height injury in an effort to provide a reference for prevention and scientific treatment.Methods Data of pediatric patients with fall from height injury treated from January 2011 to December 2012 were collected in the form of questionnaires.Epidemiologic features and relationship of associated factors were measured.Results Pediatric fall injury occurred very often in warmer season,namely on April and May,and in a day,it was more likely to happen when parents slacked at noon and night.Stairs and balconies were the most common sites of falls and head was most vulnerable to the injury.Falling height was the primary factor to the severity of injury.Conclusion To strengthen the protection reform in key areas,the supervision in peak time for falls and the care to children of the migrant workers can reduce fall injury in a certain extent.
10.Protective effect of GYY4137 on rat myocardial cells infected by Coxsackie virus B3
Zubo WU ; Hua PENG ; Yan BAI ; Wen LIN ; Zhiquan ZHANG ; Yali LIU
Chinese Journal of Applied Clinical Pediatrics 2015;30(1):59-63
Objective To study the protective effect of GYY4137 on rat myocardial cells infected by Coxsackie virus B3 (CVB3) and its signal transduction mechanism.Methods Cardiomyocytes were treated with different concentrations of GYY4137(10,50,100 μmol/L) for 24 hours before addition of 100 TCID50 CVB3 for 2 hours before serum-free conditions.After treatment,the cell viability was ascertained with Cell Counting Kit-8 (CCK-8) assay.At the same time,the levels of tumor necrosis factor-α (TNF-α),interleukin-1β (IL-1β),interleukin-6 (IL-6) in the supernatants were analyzed by enzyme-linked immunosorbent assay (ELISA).Western blot was used to study the expression of nuclear factor kappa-B (NF-κB) protein and the inhibitory subunit of (IκBα) in myocardial cells.Results After exposure of cardiomyocytes to GYY4137 with different concentration (10,50,100 μmol/L)for 24 hours cell viability had no change.The NF-κB expression and the levels of TNF-α,IL-1β,IL-6 [(175.80 ± 5.05) ng/L,(25.80 ± 1.97) ng/L,(65.33 ± 3.51) ng/L] in the GYY4137-treated CVB3 infection group were significantly reduced when compared with untreated CVB3 infection group (P < 0.01),respectively.Compared with the normal group,the GYY4137 concentration-dependently restrained the CVB3-mediated IκBα degradation(P < 0.01).Conclusions GYY4137 exerts anti-inflammatory effects in CVB3-infected cardiomyocytes.This anti-inflammatory mechanism may be associated with suppression of the activation of the NF-κB.