1.Effects of apolipoprotein A5 on the metabolism of serum lipid in type 2 diabetic patients
Jing CHANG ; Huan-Qin CHEN ; Lei QIU ; Yi-Wen YANG ;
Chinese Journal of Endocrinology and Metabolism 2001;0(05):-
Apolipoprotein A5(ApoA5)level and other indices were determined in patients with type 2 diabetes mellitus and healthy individuals.Compared to control group,ApoA5 level in the diabetic group was lower (P
2.Case-control study on T-shaped locking internal fixation and external fixation for the treatment of dorsal Barton's fracture.
Huan-qing CHEN ; Xi-le WEN ; Yang-ming LI ; Cong-you WEN
China Journal of Orthopaedics and Traumatology 2015;28(6):517-520
OBJECTIVETo compare clinical effect of T-shaped locking internal fixation and external fixation in treating dorsal Barton's fracture,and investigate selective strategy of internal fixation.
METHODSFrom January 2008 to January 2013, 100 patients with dorsal Barton's fracture were randomly divided into two groups. In treatment group, there were 30 males and 20 females with an average age of (33.8±3.6) years old;30 cases were type B, 20 cases were type C;and treated with T-shaped locking internal fixation. In control group, there were 32 male and 18 females with an average age of (32.9±3.4) years old; 29 cases were type B, 21 cases were type C; and treated with external fixation. Volar tilt, ulnar deviation and radial height at 3 months after operation were detected and compared between two groups. Mechara functional evaluation were used to evaluate postoperative clinical effects. Clinical cure time, postoperative complications,joint mobility and function score were recorded and compared between two groups.
RESULTSIn treatment group,volar tilt was (11.9±2.7)°, ulnar deviation was (20.8+ 2.9)°,and radial height was (10.9±1.8) mm; while volar tilt was (9.1±1.6)°, ulnar deviation was (17.1±2.9)°, and radial height was (8.1±1.5) mm in control group. Treatment group was better than control group in volar tilt, ulnar deviation and radial height. Clinical cure time in treatment group was(12.0±2.3) weeks, shorter than control group (18.0±4.1) weeks. The incidence of complications in treatment group was lower than control group. According to Mehara functional evaluation,20 cases got excellent results, 25 good, 3 moderate and 2 poor in treatment group; 16 cases got excellent results, 14 good, 10 moderate and 10 poor in control group. Treatment group was better than control group in clinical effects.
CONCLUSIONT-shaped locking internal fixation with postoperative functional exercise for the treatment of dorsal Barton's fracture fits for biomechanics demands,and has advantages of stable fixation,rapid recovery, less complications and good functional recovery, it has better clinical effects.
Adult ; Bone Plates ; Case-Control Studies ; Female ; Fracture Fixation ; instrumentation ; Fracture Fixation, Internal ; instrumentation ; Humans ; Male ; Radius Fractures ; surgery ; Wrist Injuries ; surgery
3.The species traceability of the ultrafine powder and the cell wall-broken powder of herbal medicine based on DNA barcoding.
Li XIANG ; Huan TANG ; Jinle CHENG ; Yilong CHEN ; Wen DENG ; Xiasheng ZHENG ; Zhitian LAI ; Shilin CHEN
Acta Pharmaceutica Sinica 2015;50(12):1660-7
Ultrafine powder and cell wall-broken powder of herbal medicine lack of the morphological characters and microscopic identification features. This makes it hard to identify herb's authenticity with traditional methods. We tested ITS2 sequence as DNA barcode in identification of herbal medicine in ultrafine powder and cell wall-broken powder in this study. We extracted genomic DNAs of 93 samples of 31 representative herbal medicines (28 species), which include whole plant, roots and bulbs, stems, leaves, flowers, fruits and seeds. The ITS2 sequences were amplified and sequenced bidirectionally. The ITS2 sequences were identified using Basic Local Alignment Search Tool (BLAST) method in the GenBank database and DNA barcoding system to identify the herbal medicine. The genetic distance was analyzed using the Kimura 2-parameter (K2P) model and the Neighbor-joining (NJ) phylogenetic tree was constructed using MEGA 6.0. The results showed that DNA can be extracted successfully from 93 samples and high quality ITS2 sequences can be amplified. All 31 herbal medicines can get correct identification via BLAST method. The ITS2 sequences of raw material medicines, ultrafine powder and cell wall-broken powder have same sequence in 26 herbal medicines, while the ITS2 sequences in other 5 herbal medicines exhibited variation. The maximum intraspecific genetic-distances of each species were all less than the minimum interspecific genetic distances. ITS2 sequences of each species are all converged to their standard DNA barcodes using NJ method. Therefore, using ITS2 barcode can accurately and effectively distinguish ultrafine powder and cell wall-broken powder of herbal medicine. It provides a new molecular method to identify ultrafine powder and cell wall-broken powder of herbal medicine in the quality control and market supervision.
4.Prevalence rates of depression and anxiety in HIV-infected men who have sex with men
Fang CHEN ; Fan DING ; Xiaojie LIN ; Xiaodong WANG ; Huan HE ; Wen HUANG ; Qiaohong YANG ; Hongbo ZHANG
Chinese Mental Health Journal 2015;(4):251-257
Objective:To know about the prevalence rates of depression and anxiety and its related factors a-mong human immunodeficiency virus (HIV)-infected men who have sex with men (MSM)in China.Methods:Under the help of MSM group,totally 600 HIV-infected MSM were recruited by snowballing sample among HIV-positive MSM,and 541 effective electronic questionnaire were received.Participants completed self-made question-naire of HIV-positive MSM healthy condition which included social demographic and health behavior et al.The Center for Epidemiologic Studies Depression Scale(CES-D)and Self-Rating Anxiety Scale (SAS)were used to survey the condition of depression (CES-D score ≥16)and anxiety (SAS score ≥50)respectively.Results:The percentage of having depression and anxiety symptoms was 44.7% (242 /541)and 25.1% (136 /541)respective-ly.Multiple unconditioned logistic regression analysis showed that the risk of having depressive symptoms included considered suicide in the past year (OR =3.31,95%CI:1.73 -5.34),nondisclosure their HIV infection to male primary sexual partners (OR =0.47,95%CI:0.30 -0.73),discrimination experience (OR =1.19,95%CI:1.11 -1.29).Compared with monthly income of 1500 yuan or less,participants who earned >5000 yuan monthly were less likely to have depressive symptoms (OR =0.34,95%CI:0.17 -0.71).Factors associated with anxiety symp-toms included considered suicide in the past year (OR =2.43,95%CI:1.40 -4.21),accepted antiviral therapy (OR=1.74,95%CI:1.06 ~2.84),discrimination experience (OR =1.12,95%CI:1.05 ~1.20).Participants earned >5000 yuan monthly (OR =0.44,95%CI:0.20 ~0.94)could decrease the risk of having anxiety symptom compared with whose monthly income of 1500 yuan or less.Conclusion:The prevalence rate of depression and anxiety symp-tom among HIV-infected MSM is high and need more attention.It may be helpful to call for the strategy of promo-ting mental health on decreasing social discrimination,communicating with sexual partners,and improving their eco-nomic status.
5.A cohort study comparing the efficacy and safety of bortezomib plus dexamethasone versus bortezomib, epirubicin and dexamethasone in patients with multiple myeloma
Qianyun HAO ; Huan CHEN ; Kaiyan LIU ; Lei WEN ; Xiaojun HUANG ; Jin LU
Chinese Journal of Internal Medicine 2016;55(9):689-694
Objective Bortezomib plus dexamethasone (BD) and bortezomib,epirubicin plus dexamethasone (PAD) are both front-line regimens of multiple myeloma.This study aimed to assess the efficacy and safety of BD versus PAD regimens in multiple myeloma.Methods All 208 patients with newly diagnosed multiple myeloma using either BD or PAD front-line regimens were enrolled between November 2006 and July 2014.Front-line chemotherapy regimens were 2-7 cycles.Response rates,overall survival,progression-free survival,and adverse effects were retrospectively analyzed.Results (1) In PAD group,the overall response rate was 82.9% [complete response(CR) 28.6%,very good partial response(VGPR) 12.9%],which was similar as that in BD group [70.3% (CR 26.8%,VGPR 5.1%),P =0.049].The estimated median progression-free survival was 34.0 months in PAD group versus 25.0 months in BD group (P =0.010).(2) The triplet regimen has a higher accumulated response rate along with chemotherapy cycles,but it didn't show any difference with the doublet regimen.(3) In elderly patients (> 65 years old),the overall response rates in two groups had no significant difference (P =0.769),while in patients ≤65 years old,PAD regimen were more effective than BD regimen (P =0.037).(4) Grade 3 and 4 adverse events were recorded with a higher number of patients in the PAD group than those in the BD group.Conclusions Compared with BD regimen,PAD regimen improves the initial response rates,especially deep responses,as well as progression-free survival in patients with newly diagnosed multiple myeloma.However,more severe toxicities are accordingly higher.In elderly patients,overall response rate,estimated median progression-free survival,and median overall survival are all comparable in both regimens.
6.Role of endoplasmic reticulum stress in ketamine-induced apoptosis in rat neurons: an in vitro experiment
Huan CHEN ; Di WEN ; Chunling MA ; Guanjie XU ; Qiongmei GUO ; Changhao ZHOU
Chinese Journal of Anesthesiology 2016;36(10):1225-1228
Objective To evaluate the role of endoplasmic reticulum stress in ketamine-induced apoptosis in rat neurons.Methods Rat adrenal pheochromocytoma cell line (PC12 cells) was seeded in the culture dishes 100 mm in diameter (10 ml/dish) or in 6-well plates (2 ml/well) at a density of 5 × 105 cells/ml.PC12 cells were divided into 4 groups (n =6 each) using a random number table:control group (group C);ketamine group (group K);endoplasmic reticulum stress inhibitor salubrinal group (group S);ketamine + salubrinal group (group K+S).In group C,the cells were cultured in the plain culture medium.In group K,1.5 mmol/L ketamine was added.In group S,30 mmol/L salubrinal was added.In group K + S,1.5 mmol/L ketamine and 30 mmol/L salubrinal were added.At 24 h of incubation,the cell morphology was observed under light microscope,the expression of Bip and caspase-12 in PC12 cells was detected by Western blot,and the cell apoptosis was measured by flow cytometry.The apoptosis rate was calculated.Results Compared with group C,the expression of Bip and caspase-12 was significantly upregulated,and the apoptosis rate was increased in K and K + S groups (P < 0.05),and no significant change was found in the parameters mentioned above in group S (P> 0.05).Compared with group K,the expression of Bip and caspase-12 was significantly down-regulated,and the apoptosis rate was decreased in group K+S (P<0.05).The degree of damage to PC12 cells was more serious in group K than in group C..The degree of damage to PC12 cells in group K+S was significantly mnilder than that in group K and more serious than that in group C.Conclusion The mechanism by which ketamine induces neuronal apoptosis is related to the enhancement of endoplasmic reticulum stress in rats.
7.Expression and Immunoreactivity of a Human Group A Rotavirus Vp4
Qing-huan, ZHAO ; Yu-ling, WEN ; Yang, YU ; Qing, DAI ; Yuan-ding, CHEN
Virologica Sinica 2007;22(4):287-293
Rotavirus capsid protein Vp4 plays an important role in the virus adhering and entering the cells. In this study, a Vp4 gene cloned from a rotavirus strain TB-Chen was highly expressed in E.coli BL21 (DE3). The results of the Western blot showed that the protein possesses specific immuno-reactivities and can be specifically recognized by guinea pig antibodies against rotavirus strain SA11 or Wa. Some Vp4 dimers were formed during renaturation. These data obtained from this study provide a strong basis for further study on the structure and function of the Vp4.
8.Observation of injection drug speed in ropivcaine combined spinal epidural anesthesia
Guo-Qiang CHEN ; Jian-Dong WENG ; Wen-Ke YANG ; Yi-Shan HONG ; Huan-Kai ZHANG ;
Chinese Journal of Primary Medicine and Pharmacy 2006;0(10):-
Objective To investigate the effect of ropiyacaine combined with intra-spinal epidural anesthesia by using the same volume but different injection speed on anaesthetic level.Methods 80 cases of patients of ASA~Ⅱdegree suitable to use intra-spinal epidural combined anesthesia for gynecologic operation were selected and ran- domly divided into three groups,0.75 % ropivacaine 2mg(15mg)administered,group A the speed of injection was 10 seconds,group B injection speed was 20 seconds,group C injection speed was 30 seconds,the anaesthetic level reached T_(10).The time of highest level in spinal anesthesia,30 minutes after spinal anesthesia MAP,and number of cases need to add epidural drug were all recorded.Results The best effect of anesthesia was found in group B,the block level of anesthesia was satisfactory,blood dynamic was stable,and there was no need to add epidural drug.Conclusion The speed of 0.75 % ropivacaine 2ml spinal epidural combined with anesthesia was suitable at the speed of 20 seconds.
9.The phenomenon of insulin resistance in cardiomyocytes during post-simulated ischemic reperfusion
Yong-Gang LI ; Huan-Wen CHEN ; Er-Yong ZHANG ; Donghu SUI ; Yingkang SHI ;
Chinese Journal of Thoracic and Cardiovascular Surgery 1995;0(05):-
0.05,vs control).Insulin stimulated glucose transport into cardiomyocytes in a dose-dependent fashion.Glucose uptake stimulated by insulin into cardiomyocytes was both decreased significantly in 15 mins reperfusian group and in 60 mins reperfusion group (P
10.Expression of Vitreoscilla Hemoglobin in Poly ?-glutamic Acid-producing Bacillus licheniformis WX-02
Huan XIONG ; Xue-Tuan WEI ; Zhi-Xia JI ; Ming SUN ; Shou-Wen CHEN ;
Microbiology 2008;0(11):-
Poly ?-glutamate is a biopolymer material that has a good application prospect.The Vitreoscilla hemoglobin(VHb) gene was integrated into the chromosome of Bacillus licheniformis WX-02 by integrative vector pDG1730-vgb.The expression of VHb was confirmed by CO-difference spectra analysis.It was shown by the results of batch cultures in a 3 L bioreactor that biomass and ?-PGA obtained in the recombinant M2 were 25.5 % and 20% higher than those of the control respectively.