1.Influence of bi-level positive airway pression ventilation via nasal on ET-1 of overlap syndrome
Wei-Dong SONG ; Chao ZENG ; Ping XU ;
Chinese Journal of Primary Medicine and Pharmacy 2005;0(11):-
Objective To explore the effect of nBiPAP on ET-1 of patients with overlap syndrome.Methods Levels of ET-1 in plasma of 25 cases of OS,20 cases of COPD were analysed by radioimmunoassay,and ET-1 in OS was measured before and after treatment.The relationship between ET-1 with SaO_2 during sleep was analyzed. Results (1)The ET-1 levels in plasma of OS group were significantly higher than those of COPD group before treatment(P
2.Ubiquitin ligase Smurf1 promotes Smurf2 neddylation modification
Chao LIU ; Haiwen LI ; Rongfei WEI ; Ping XIE ; Lingqiang ZHANG
Military Medical Sciences 2017;41(2):86-89
Objective To investigate the mechanism of Smad ubiquitination-related factor 2 (Smurf2)neddylation. Methods The Smurf2 protein level was tested by overexpression of Nedd8,while the method of immunoprecipitation(IP) and Western blotting were used to analyz Smurf2-Nedd8 modification.The GST-pulldown experiment was conducted to prove protein interactions.The protein was obtained by grinding mouse tissue and Western blotting was used to test the protein expression level.Results Over expression of Nedd8 could lead to the down regulation of the Smurf2′s protein level.Smurf1 and Smurf2 could interact in the GST-pulldown experiment. Smurf1 could enhance Smurf2-Nedd8 modification.The Smurf2′s protein level was up-regulated in mouse tissue of Smurf1 C426A.Conclusion There is some relationship and also difference between Smurf1 and Smurf2.Smurf1 can enhance Smurf2-Nedd8 modification.
4.Isolation and Identification of Promoter Sequence of Interferon Regulatory Factor-3 and Detection of Its Promotor Activity in Human Embryonic Kidney-293 Cells
wei, REN ; hua-gao, XU ; chao, LU ; guo-ping, ZHOU
Journal of Applied Clinical Pediatrics 2006;0(17):-
Objective To construct a luciferase reporter plasmid containing interferon regulatory factor 3(IRF-3)human gene promoter and to evaluate promoter activity in human embryonic kidney(HEK)-293 cells.Methods The 1 000 bp fragment was amplified by PCR with human genomic DNA as a template and was directionally cloned into pGL3-basic multiple cloning sites to construct the luciferase repor-ter plasmid pGL3-pIRF-3.Transfection of HEK-293 cells with the promoter-driven lucife-rase construct was performed to induce lucife-rase gene expression and calculate the relative luciferase activity unit(RLU).Promoter sequence of 1 000 bp upstream of transcription initiation site of IRF-3 was analyzed by using Promoter 2.0 Prediction software.Results DNA sequencing and restriction endonuclease analysis verified the successful construction of the plasmid pGL3-pIRF-3.This IRF-3 promoter exhibited a strong promoter activity with an increase of 42.2-fold of RLU in HEK-293 cells when compared with pGL-3 basic vector.The transfection experiment confirmed that the levels of its activation were significantly higher than that in controls in HEK-293 cells.Function analysis of IRF-3 promoter disclosed seve-ral GATA-1 and specific protein 1(Sp1) sites and E2F in minimal promoter region.Conclusion The plasmid pGL3-pIRF-3 promoter is successfully constructed and has a strong basal promoter activity in HEK-293 cells.
6.Spectral CT in preoperatively quantitative evaluation on histodifferentiation of rectal adenocarcinoma
Chuanbin WAGN ; Shuhua WEI ; Ping ZHANG ; Chao WEI ; Naiyu LI ; Fei GAO ; Jiangning DONG
Journal of Practical Radiology 2017;33(3):451-454
Objective To explore the value of spectral CT imaging in the preoperative evaluation on histodifferentiation of rectal adenocarcinoma.Methods 90 patients with rectal adenocarcinoma underwent dual-phase enhanced spectral CT scan,and were divided into well,moderately and poorly differentiated adenocarcinoma groups according to the pathology.Single-energy images with energy levels from 40 to 140 keV were generated by GSI Viewer software,and the slope K value of the energy curves were calculated.Iodine concentrations were derived from iodine-based material-separation images and normalized to the iodine concentrations in the aorta. ROC curves were derived to evaluate the differentiation diagnosis efficiency of normalized iodine concentration (NIC)and slope K in rectal adenocarcinoma,respectively.Results There were 22,50 and 18 cases in the well,moderately and poorly differentiated group,respectively.The iodine concentration,NIC and slope K value were statistically different both in the arterial and venous phase (P<0.05).According to the ROC curve,the diagnostic value of NIC was close to that of the slope K,with the sensitivity>76% and the specificity>74% in the arterial phase,and the sensitivity>77% and the specificity>70% in the venous phase by choo-sing the appropriate threshold.Conclusion The spectral CT can provide a new method for preoperatively evaluating the histodiffer-entiation of rectal adenocarcinoma.
7.An update in studies on effect of exercise in patients with prediabetes
Jiajia JI ; Fan LI ; Qingqing LOU ; Wei WEI ; Xiaodan YUAN ; Ping YAO ; Chao LIU
Chinese Journal of Endocrinology and Metabolism 2014;30(2):163-166
The article reviewed the effects of resistance training,aerobic exercise in patients with diabetes and pre-diabetes,based on the metabolic characteristics in patients with pre-diabetes,and aimed at providing theoretical reference for exercise in the prevention and control of diabetes mellitus.
8.Efficacy comparison between electroacupuncture and dyne-35 in treatment of polycystic ovary syndrome.
Chun-Lan JIN ; Li-Xin WEI ; Ji-Ping ZHAO ; Zhong-Chao WU
Chinese Acupuncture & Moxibustion 2014;34(12):1174-1178
OBJECTIVETo compare the difference in clinical efficacy on polycystic ovary syndrome (PCOS) between electroacupuncture (EA) and dyne-35 and to explore the effect mechanism.
METHODSSixty-five patients were randomized into an EA group (33 cases) and a western medication group (32 cases). In the EA group, the selected acupoints were Danzhong (CV 17), Qimen (LR 14), Zhongwan (CV 12), Tianshu (ST 25), Guanyuan (CV 4), Zigong (EX-CA 1), Sanyinjiao (SP 6), Zusanli (ST 36) and Taichong (LR 3), etc. After the arrival of qi, electric stimulation was attached to the acupoints for 30 min. The treatment was given 3 times a week. In the western medication group, dyne-35 was prescribed on the 5th day of natural menstruation or withdrawal bleeding, one tablet a day, continuously for 21 days. The treatment cycle was 3 months in the two groups. The menstrual condition, body mass, body mass index (BMI), serum testosterone (T), luteinizing hormone (LH), follicle-stimulating hormone (FSH) and LH/FSH were compared before and after treatment in the two groups. The clinical efficacy was assessed in the two groups.
RESULTSThe total effective rate was 90.6% (29/32) in the EA group and was 93.3% (28/30) in the western medication group. The efficacy was similar in the two groups (P > 0.05). After treatment, the levels of LH and LH/FSH were all reduced significantly in the two groups (all P < 0.01). After treatment, T level in serum was reduced apparently in the western medication group (P < 0.05). Before and after treatment, the differences in body mass and BMI in the EA group were more significant than those in the western medication group (P < 0.01, P < 0.05).
CONCLUSIONEA is the effective method for PCOS, similar to that of dyne-35. The effect of it for weight loss is superior to dyne-35 and no apparent adverse reactions happen. The effect mechanism of EA is related to the regulation of serum sexual hormone levels and their ratio, as well as to the regulation of body lipid metabolism.
Acupuncture Points ; Adolescent ; Adult ; Cyproterone Acetate ; administration & dosage ; Drug Combinations ; Electroacupuncture ; Ethinyl Estradiol ; administration & dosage ; Female ; Follicle Stimulating Hormone ; blood ; Humans ; Luteinizing Hormone ; blood ; Polycystic Ovary Syndrome ; blood ; drug therapy ; therapy ; Young Adult
9.Effect of total glucosides of paeony on Wnt/β-catenin signal transduction pathway expression in kidney of diabetic rats.
Bao-Chao CHANG ; Wei-Dong CHEN ; Yan ZHANG ; Ping YANG ; Lei LIU ; Jing WANG
China Journal of Chinese Materia Medica 2014;39(19):3829-3835
The study is to explore the effect of total glucosides of paeony (TGP)on Wnt/β-catenin signal transduction pathway expression in kidney of diabetic rats, and discuss the protection of TGP in diabetic nephropathy and possible mechanism. Ninety male SD rats of 8 weeks age were randomly divided into normal control group (n = 10) and model group (n = 80). Rats of the normal control group were fed with regular diet, while rats of the model group were fed with high-fat high-sugar diet and 4 weeks later were given an intraperitoneal injection of 35 mg x kg(-1) streptozotocin (STZ). The successfully induced type 2 diabetic rat models were then randomly divided into DM group, three TGP (50, 100, 200 mg x kg(-1) x d(-1)) treatment group and tripterygium wilfordii glycosides (8 mg x kg(-1) x d(-1)) control group. Rats of DM group and each treatment group were given high-fat high-sugar diet. At week 14, the levels of blood sugar, 24 hour urine protein, serum creatinine and blood urea nitrogen were tested. The rats were then sacrificed. Renal pathological changes were examined. Renal tissue Wnt-1 and β-catenin expressions were detected by immunohistochemical assay. Wnt-1 mRNA and β-catenin mRNA expression was semi-quantified by RT-PCR. Wnt-1 protein and β-catenin protein expression was semi-quantified by Western blot. The Result show that Wnt-1 and β-catenin expression increased in kidney of high-fat high-sugar induced type 2 diabetic rats. Compared with diabetic group, the level of serum creatinine, blood urea nitrogen, 24 h urine protein, mean glomerular area and mean glomerular volume were decreased, renal histopathology were improved, expression of Wnt-1 and β-catenin mRNA and protein was reduced in TGP group. Tripterygium wilfordii glycosides had the similar effect. In conclusion, these results showed that Wnt/β-catenin abnormal activation in kidney of type 2 diabetic rats, TGP can improve kidney damage in diabetic rats and delay the development of diabetic nephropathy by inhibit the Wnt/β-catenin signaling pathway.
Animals
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Blood Glucose
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metabolism
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Blood Urea Nitrogen
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Diabetic Nephropathies
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drug therapy
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metabolism
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Drugs, Chinese Herbal
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administration & dosage
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Glucosides
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administration & dosage
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Humans
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Kidney
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drug effects
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metabolism
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Male
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Paeonia
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chemistry
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Rats
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Rats, Sprague-Dawley
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Wnt Signaling Pathway
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drug effects
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Wnt1 Protein
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genetics
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metabolism
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beta Catenin
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genetics
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metabolism
10.Associating liver partition and portal vein ligation for staged hepatectomy in the treatment of hepatocellular carcinoma with cirrhosis
Guangyi WANG ; Feng WEI ; Ping ZHANG ; Xiaodong SUN ; Xiaoju SHI ; Chao JIANG ; Guoyue LYU
Chinese Journal of Digestive Surgery 2016;15(5):448-454
Objective To investigate the safety and clinical effect of associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) in the treatment of hepatocellular carcinoma (HCC) with cirrhosis.Methods The retrospective cohort study was adopted.The clinical data of 5 patients with primary HCC with cirrhosis who underwent ALPPS at the First Bethune Hospital of Jilin University between October 2014 and August 2015 were collected.The surgical plan was determined according to preoperative liver function and liver functional reserve.The patients underwent portal vein (PV) ligation and liver partition in the first staged surgery.The second staged surgery was performed when growing future live remnant (FLR) came up to the standard of safe section by rescan of computed tomography (CT) at 10,14,18 days after the first staged surgery,and hemihepatectomy and hepatic segmentectomy were applied to patients.(1) The intraoperative situations were observed,including the severity of liver cirrhosis,first staged surgery time,volume of intraoperative blood loss and FLR in the first staged surgery,interval time of surgery,growth rate of liver volume,ratio of FLR and standard liver volume (SLV),time and volume of intraoperative blood loss in the second staged surgery.(2) Pre-and postoperative biochemical indicators in the first and second staged surgeries were detected,including total bilirubin (TBil) and alanine phosphatase (ALT).(3) Postoperative situations were observed,including occurrence of complications,results of pathological examination and duration of hospital stay.(4) The follow-up using telephone reservation and outpatient examination was performed to detect tumors recurrence and metastasis and survival of patients by imaging examination and tumor marker test up to November 2015.Count data were represented as mean (range).Results (1) Intraoperative situations:of 5 patients,there were 1 patient with F3 of liver cirrhosis and 4 with F4 of liver cirrhosis.One patient was complicated with lots of peritoneal effusion,followed by acute renal failure,and didn't receive the second staged surgery.Four patients underwent successful ALPPS.The first staged surgery of 5 patients:average operation time,volume of intraoperative blood loss,FLR,interval time of surgery,growth rate of liver volume,ratio of FLR and SLV were 282 minutes (range,240-320 minutes),500 mL (range,300-700 mL),457 em3(range,338-697 cm3),15 days (range,14-18 days),58% (range,46%-67%) and 42% (range,32%-44%),respectively.Average operation time and volume of intraoperative blood loss in second staged surgery were 220 minutes (range,200-260 minutes) and 412 mL (range,300-600 mL).(2) Pre-and post-operative biochemical indicators:levels of TBil and ALT of 5 patients from pre-operation to postoperative day 12 in the first staged surgery were from 4.9-30.4 μmol/L to 9.8-56.1 μmol/L and from 12.9-156.1 U/L to 46.3-207.3 U/L,respectively.Levels of TBil and ALT of 4 patients from pre-operation to postoperative day 10 in the second staged surgery were from 10.1-21.2μmol/L to 6.9-38.0 μmol/L and from 30.8-55.5 U/L to 19.8-72.8 U/L,respectively.(3) Postoperative situations:there were no perioperative death and postoperative complications of liver failure and intraperitoneal infection.One patient complicated with bile leakage was cured by non-operative treatment for 30 days.Results of pathological examination:5 patients were confirmed as Ⅱ-Ⅲ stage HCC,and 4 tumors had vascular tumor thrombi and negative resection margin with tumor size of 8-13 cm.Duration of hospital stay of 5 patients was 36 days (range,28-48 days).(4) Results of follow-up:4 patients undergoing successful ALPPS were followed up for 4-12 months.One patient was emerged with a new lesion of 2 cm in left half liver at postoperative month 7,level of AFP of which was 512 μg/L before the first staged surgery reduced to normal level at postoperative month 2,and then the patient received transcatheter arterial chemoembolization (TACE) and radio frequency ablation (RFA) treatments without tumor recurrence up to postoperative month 12.No tumor recurrence and new lesions in liver were detected in other 3 patients by abdominal enhanced scan of CT,with a normal level of AFP.Conclusion ALPPS is safe and feasible for HCC with cirrhosis,with a satisfactory short-term outcome.