2.Etiology and prevention of malocclusion after internal fixation in jaw bone fractures
Xu YAN ; Yan PENG ; Yu GAO ; Juan HU ; Haidong WEI
Journal of Practical Stomatology 1995;0(04):-
97 cases of jaw bone fractures were treated with rigid internal fixation.16 cases had malocclusion postoperation.The etiology was analyzed and the prevention methods were proposed.Intermaxillary elastic traction or fixation and craniomaxillofacial fixation or craniomentum elastic traction were performed to treat the malocclusion.By this way,14 cases were cured.1 case was operated again to resume the normal occlusion,1 case received occlusal adjustment.Incomplete reduction,incorrect operative performance,deficiency of postoperative intermaxillary fixation and incorrect intermaxillary fixation were the main causes to malocclusion.So anatomic in time reduction,correct operative performance,intermaxillary fixation,application of craniomaxillofacial fixation or craniomentum elastic traction instead of intermaxillary fixation for some special cases are effective methods to correct postoperative malocclusion.
3.Construction and Application of Zhejiang Province Internet Platform in Medical Science and Technology Project Novelty As-sessment and Selective Dissemination of Information
Yingying YU ; Junyi XIN ; Juan DU ; Haixiang HU ; Hongyu WANG
Journal of Medical Informatics 2009;30(7):27-30
The paper introduces the system design of internet platform in novelty assessment and selective dissemination of informa-tion of medical science and technology project in Zhejiang province, including the exploitation of environment , processing of novelty as-sessment and selective dissemination of information as well as main function design. This system has noticeable advantages, such as com-prehensive functions, multiple participation, transparent service process, which could finish the relevant work on the internet, improve the quality of information service and enhance the efficiency.
4.cDNA Cloning, Expression Analysis of Slc24a5 and Its Relationship With Melanin Deposition in Chicken
Juan LUO ; Wei ZHANG ; Bing YU ; Xiaoxiang HU ; Ning LI
Progress in Biochemistry and Biophysics 2008;35(1):69-76
Melanin is a kind of biopolymer, composed of a complex quinine/indole-quinone derived mixture which is produced in melanocytes from tyrosine. More than 100 genes related to melanin deposition have been found in mouse. Slc24a5 (solute carrier family 24, member 5) is a novel gene first cloned in zebrafish. And it has been confirmed that the Slc24a5 is involved in controlling the melanin deposition in zebrafish. Here the full length of the chicken slc24a5 mRNA sequence, its expression profile and a discussion of its relationship to melanin deposition in chicken were reported. Chicken Slc254a5 has a CDS of 1 269bp, predicting a protein of 423 amino acids which is about 80 amino acids shorter than in human and mouse. It has 9 exons and 8 introns and spans more than 1lkb of genome sequence. The quantitative real-time PCR confirmed that the chicken Slc24a5 was highly expressed in the eye of White Leghorn and Beijing Fatty Chickens, and in the eye, skin and muscle of Silky. The relative expression in Silky eye is more than two times that of White Leghorn. The relative expression in Silky skin is about 70 times that of White Leghorn and about 15 times that of Beijing Fatty Chickens. The relative expression in Silky muscle is about 15 times that of White Leghorn and about 3 times that of Beijing Fatty Chickens. And the expression result is in accordance with the melanocyte and melanin deposition in these tissues.
5.Predictive Effect of Mean Platelet Volume in Patients with Portal Vein Thrombosis: A Meta-analysis of Case-control Studies
Wen-Yi LIN ; Xuan LU ; Feng-Juan FAN ; Yu HU
Journal of Huazhong University of Science and Technology (Medical Sciences) 2018;38(4):575-581
Mean platelet volume (MPV) is an early marker of platelet activation.Larger platelets,compared to small ones,increase platelet adhesion and aggregation,and present a higher thrombotic activity.Some studies have explored the association between MPV and the morbidity of portal vein thrombosis (PVT).The aim of this study was to evaluate the predictive effect of MPV in patients with PVT by a meta-analysis.We searched Pubmed,Web of Science,SCOPUS,OVID,CNKI and CBMD from database inception to September 13,2017.Seven studies in accordance with selection criteria were included.The extraction of basic data was independently conducted by two reviewers.The mean difference in MPV between PVT patients and controls were pooled with weighted mean difference (WMD)and 95% confidence interval of 0.88 fl (95% CI:0.61-1.15).A random-effect model was chosen for an obvious heterogeneity in the pooling (Chi-square=27.12,df=6,P<0.0001,I2=77.9%).The sources of heterogeneity were from the difference of primary disease of participants and portal vein diameter.Taken together,our results reveal that MPV is a predictive indicator in patients with PVT.
6.Genotype identifications of ESBLs and AmpC β-Iactamase of a Enterococcus gallinarum isolated from chloebia gouidiae
Li YUAN ; Xiuling FU ; Jianhua LIU ; Gongzheng HU ; Juan MO ; Yushan PAN ; Yu KANG
Chinese Journal of Veterinary Science 2009;29(7):858-863
The genotypes of extended spectrum β-laetamases(ESBLs) and AmpC β-lactamases produced by Enterococcus gallinarum isolated from chloebia gouldiae were determined to elucidate the evolution mechanism of the resistant genes.The minimum inhibitory concentrations (MICs) of 18 antibacterial drugs against the Enterococcus gallinarum were detected with two dilution method,and the ESBLs and AmpC β-lactamases from the bacterium were amplified by PCR using the primers of TEM,SHV,CTX-M,ACC,CIT,DHA,EBC,FOX and MOX,respectively.The PCR products were cloned and then the cloned fragments were sequenced to identify their genotypes and subtypes.The bacterium was proved to be a ESBL-producing and AmpC β-lactamase-producing bacterium,showing severe resistant to the other drugs,except the third and forth cephalosporins,carbopenems and fosfomycin.Compared with that of AJ847364 (TEM-116),the sequence of the TEM-type was characterized by two nucleotide mutations (512T→A and 695A→C),which led to two mutations of amino acids(17111e→Lys and 232Lys→Thr),showing that the detected TEM-type was a new genotype,the sequence of the AmpC β-lactamase was similar to that of EF078894 (ACT-like type)with a 97% homology.The genotype of ESBLs of Enterococcus gallinarum was a new TEM-type derived from the TEM-type ESBLs of klebstella pneumoniae isolated from the same avian.The genotype of AmpC lactamase was ACT-type,which probably concerned with β-1actam antibiotics used.
7.Construction of mouse models of experimental allergic rhinitis and the correlation with Th1/Th2 imbalance
Linge LI ; Juan FENG ; Bin HU ; Xi SHOU ; Chun ZHANG ; Yu ZHANG ; Hua ZHANG
Chinese Journal of Tissue Engineering Research 2015;(40):6515-6519
BACKGROUND:Atopic individuals predispose to alergic rhinitis after contacting with an alergen, which is mainly released by IgE-mediated histamine. Alergic rhinitis is a kind of non-infectious inflammatory disease that involves a variety of immune cels and cytokines and is related to Th1 and Th2 immune imbalance. Interferon γ is a cytokine secreted by Th1 cels, while interleukin-4 is a cytokine secreted by Th2 cels. OBJECTIVE:To establish a stable 129Sv mouse model of alergic rhinitis, so as to lay the foundation of establishing gene knockout 129Sv mouse models of alergic rhinitis, and to observe the concentration variation of IgE, interleukin-4 and interferon γ. METHODS: Twenty-four mice were randomly divided into 2 groups: model and control groups. Mice in the model group were sensitized by intraperitoneal injection of ovalbumin to establish mouse models of alergic rhinitis. Mice in the control group were subjected to intraperitoneal injection of PBS. After successful modeling, pathological changes of nasal eosinophils and plasmocyte infiltration were evaluated by nasal mucosa staining. Interleukin 4 and interferon γ levels and ovalbumin-specific IgE antibody concentration were detected by enzyme-linked immunosorbent assay. RESULTS AND CONCLUSION:Enzyme-linked immunosorbent assay showed that compared with the control group, serum ovalbumin-IgE and interleukin-4 concentrations were significantly increased, and Interferon γ concentration was significantly lower in the model group (P < 0.05). Hematoxylin-eosin staining results showed that cilia lodging and submucosal serous gland hyperplasia, eosinophils and plasmocyte infiltration were obvious. These results confirm that a mouse model of allergic rhinitis was successfully constructed in this study and the pathogenesis of allergic rhinitis was related to Th1/Th2 imbalance.
8.Effect of Pyruvate-enriched ORS on intestinal mucosal blood flow, activity of Na+-K+-ATPase and intesti-nal absorption rate during enteral resuscitation of scalded rats
Weiwei LIU ; Ying ZHAO ; Juan LI ; Wen YU ; Xiaodong BAI ; Huiping ZHANG ; Sen HU ; Zhiyong SHENG
Journal of Medical Postgraduates 2014;(12):1258-1261
Objective Gastrointestinal rehydration is a simple and effective method in treatment of burn shock during war-time, fire disaster and other harsh conditions , and practice has proved the exact curative effect of HCO 3 salt sugar liquid .This article was to investigate the effect of pyruvate-enriched oral rehydration solution ( Pyr-ORS ) on intestinal mucosal blood flow ( IMBF ) , activity of Na +-K+-ATPase and intestinal absorption rate during en-teral resuscitation of a 35% TBSA third-degree scald in rats . Methods 90 male rats were randomly divided into 5 groups: scald without fluid resuscitation ( S group ); sham scald resuscitated with HCO3 salt sugar liquid ( SS HCO3 group ); sham scald resuscitated with Pyr-ORS ( SS Pyr-ORS group ); scald resuscitated with HCO 3 salt sugar liquid (S HCO3 group); scald resuscitated with Pyr-ORS (S Pyr-ORS group) (n=18).Each group was divided into 2 subgroups of 1.5 and 4.5 h after scald injury.Intestinal absorption rate of water and Na +, IMBF and activity of Na +-K+-ATPase were detected on each group . Results Compared with shame scald groups , the intestinal absorption rates of water and Na +decreased ob-viously in scald groups with fluid resuscitation (P<0.05);at 1 h after scald injury, the intestinal absorption rates of water and Na +in S Pyr-ORS groups were both higher than those in S HCO 3 groups(P<0.05).Compared with shame scald groups , IMBF and activity of Na+-K+-ATPase at 1.5 and 4.5 h after scald injury decreased obviously in scald groups with fluid resuscitation (P<0.05); at 1.5 and 4.5 h after scald injury, IMBF in S Pyr-ORS groups (95.250 ±5.096/112.765 ±7.215) were greater than those in S HCO3 group (80.764 ±7.852/94.671 ±8.469), which was of statistical significance (P<0.05). Conclusion Pyr-ORS is a simple and effec-tive method in treatment of burn shock during wartime , fire disaster and other harsh conditions .
9.The assessment and comprehensive nursing interference of pain after thoracic surgery
Jihong ZHONG ; Rong HU ; Xuemin ZHU ; Xia ZHANG ; Yulian SUN ; Dan WU ; Juan YU ; Xin ZHOU
Journal of Medical Postgraduates 2015;(2):189-191
Objective Because of the major trauma from thoracotomy , postoperative pain may arouse patients'psychological and physiological stress response and hence affected the treatment outcome and functional recovery seriously .We retrospectively studied the correlation between the staging of pain and nursing interference to investigate the effect of nursing interference on the pain intensity after thoracic surgery . Methods Five hundred and eighty cases of patients surviving thoracotomy between December 2013 and March 2014 in Nanjing Jingling Hospital were reviewed .Correlations between comfortable nursing measures such as effective analgesia , postural care , catheter care , environmental interventions , psychological intervention and the standard assessment of pain were analysed according to postoperative pain stage . Results With comprehensive nursing interference , the highest pain score occurred in the first 24 hour (2.89 ±0.39).The score was reduced gradually to 2.25 ±0.90 in stage Ⅱ, 1.58 ±0.57 in stage Ⅲ and 1.06 ±0.24 in stage Ⅳrespectively . Conclusion Comprehensive nursing interference according to pain staging may relieve pain effectively after thoracotomy .
10.Analysis of factors influencing short-term effect of presurgical pharmacological therapy and transsphenoidal microsurgery for somatotropinomas
Xi CHEN ; Juan CHEN ; Yu XU ; Hang HU ; Chaoxi LI ; Huaqiu ZHANG ; Ting LEI
The Journal of Practical Medicine 2015;(9):1414-1417
Objective To analyze factors influencing short-term effect of presurgical pharmacological thera-py and transsphenoidal microsurgery for somatotropinomas. Methods The clinical data of 53 patients underwent presurgical pharmacological therapy and transsphenoidal surgery for somatotropinomas were retrospectively analyzed in order to search for factors influencing effect of presurgical pharmacological therapy and transsphenoidal surgery for somatotropinomas. Results Serum GH inhibition rates decreased<50.00%from baseline in 62.26%of patients receiving presurgical pharmacological therapy. Statistical analysis concerning the influence of sex , neuropathological evaluation, tumor size and presence of invasion on presurgical pharmacological therapy effect were performed using a chi-squared test, no significant correlation was found among these factors and presurgical pharmacological therapy effect. Total remission rates were 43.40%, Statistical analysis concerning the influence of sex , neuropathological e valuation, tumor size, presence of invasion and presurgical pharmacological therapy effect on remission rate were performed using a chi-squared test, a significant correlation was found among tumor size, presence of invasion, presurgical pharmacological therapy effect and remission rate , while no significant correlation was found among the rest of the factors. Further Logistic regression analysis demonstrated a significant correlation among tumor size , presence of invasion and remission rate , while no significant correlation was found between presurgical pharmacolog-ical therapy effect and remission rate. Conclusions Presurgical pharmacological therapy effect revealed no signifi-cant correlation with sex, neuropathological evaluation, tumor size or presence of invasion. Total remission rate cor-related with tumor size and presence of invasion. A better presurgical pharmacological therapy effect may indicated a better outcome, while postoperative remission rate revealed no significant correlation with presurgical pharmacologi-cal therapy in our series.