1.Problems and measures about clinical postgraduate cultivation
Bing FENG ; Fahuan YUAN ; Huibiao YANG
Chinese Journal of Medical Education Research 2003;0(02):-
The authors analyzed the current problems about clinical postgraduate cultivation in the medical colleges or institutes or hospitals in China,and proposed some solving ideas for discussion,including raising the applicative qualification for enrolling postgraduate,reinforcing construction of the soft and hardware condition,guaranteeing enrolling number of postgraduate for key colleges and institutes.
3.Physical properties of metal sulfides and research advances in tumor photothermal therapy
Feng HUO ; Dengyue YUAN ; Chao YOU ; Wenqing DENG ; Feng YANG
Military Medical Sciences 2016;40(12):958-963
Photothermal therapy ( PTT) is a new treatment for cancer .Metal sulfide quantum dots can serve as good PTT agents thanks to their excellent optical , physical and chemical properties .This paper introduced the basic principles of PTT, evaluation methods and properties of quantum dots .Also, we reviewed the research progress in metal sulfide quantum dots, which have good infrared plasmon response capabilities and localized surface plasmon resonance effect in PTT .In combination with the characteristics of metal sulfide quantum dots , this review offered a vision of the physical and chemical processes which can be used in PTT and the developments of this novel cancer therapy offered a vision of the .
4.Research of Biomechanical Evaluation Methods of Hand Performance Fatigue
Li DING ; Feng YANG ; Shouping CHEN ; Chunxin YANG ; Xiugan YUAN
Space Medicine & Medical Engineering 2006;0(05):-
Objective To find a biomechanical evaluation methods of manual performance fatigue,for providing the feasible methods for the hand fatigue of spacesuit glove.Method Twelve females and forteen males in two groups served as the subjects and participated in the experiments of changeless force fatigue,including gripping,pinching and screwing,and took part in the nondimensional force fatigue.Result Manual performance fatigue could be fully evaluated based on gripping,pinching and screwing.The nondimensional force fatigue had widely applied ranges and well veracity.The combination of nondimensional subjective and objective evaluations was the optimal fatigue evaluation method.Conclusion The results can provide the feasible methods for performance evaluation of spacesuit glove system.
5.Study on HPLC Fingerprint of Total Flavonoids from Pollen ofBrassica campestrisL.
Chengcheng FENG ; Sude YANG ; Shaowei YUAN ; Zhenzhong WANG ; Yuan BI ; Siyang FAN ; Yifang YANG ; Wei XIAO
World Science and Technology-Modernization of Traditional Chinese Medicine 2015;17(3):591-595
In this article, HPLC fingerprint analysis method for total flavonoids from pollen of Brassica campestris L.was established., The HPLC fingerprint was performed on Waters C18 column (250 mm × 4.6 mm, 5 μm), eluted gradiently with the mixture of acetonitrile and 0.4% phosphoric acid aqueous solution at a flow rate of 0.8 mL·min-1. The column temperature was 40℃. The detection wavelength was 320 nm. The HPLC standard fingerprint of total flavonoids from pollen of Brassica campestrisL. was established, and 16 common peaks were calibrated. The method was simple, stable, and reproducible. It could be applied for quality control of total flavonoids from pollen of Brassica campestris L.
6.Correlation Study between Electronic Bronchus Mirror and Chinese Medical Syndrome TVDinci of Mycoplasma pneumonia Children.
Xiu-tai YUAN ; Rui-feng LI ; Pei-li YANG
Chinese Journal of Integrated Traditional and Western Medicine 2016;36(2):188-190
OBJECTIVETo explore the correlation between electronic bronchus mirror and Chinese medical syndrome typing of Mycoplasma pneumonia children.
METHODSTotally 198 Mycoplasma pneumonia children inpatients were assigned to three syndrome types according to Chinese medical syndrome typing and self-formulated typing standards of electronic bronchus mirror, i.e., Fei-qi accumulation of damp and heat syndrome, Fei-qi accumulation of toxicity and heat syndrome, deficient vital qi leading to lingering of pathogen syndrome. The correlation between electronic bronchus mirror and Chinese medical syndrome typing was explored.
RESULTSAs for comparison between electronic bronchus mirror and Chinese medical syndrome typing, Kappa value (K^) was 0.645 and Spearman coefficient correlation (r) was 0.653 (P < 0.01) for Fei-qi accumulation of damp and heat syndrome; K^ was 0.724 and r(s) was 0.727 (P < 0.01) for Fei-qi accumulation of toxicity and heat syndrome; K^ was 0.506 and r(s) was 0.515 (P < 0.01) for deficient vital qi leading to lingering of pathogen syndrome.
CONCLUSIONChinese medical syndrome typing of Mycoplasma pneumonia children was moderately in line with inspection typing under electronic bronchoscope with significant correlation.
Bronchoscopy ; Child ; Humans ; Inpatients ; Medicine, Chinese Traditional ; Pneumonia, Mycoplasma ; classification ; diagnosis
7.Effects of different surface roughness prior to overglazing on final surface texture of glazed ceramic
Qiaoying LAN ; Jiaxing YANG ; Yi YUAN ; Feng TAN
Chinese Journal of Medical Aesthetics and Cosmetology 2011;17(3):200-203
Objective To evaluate the influence of different surface roughness on final surface texture of glazed ceramic. Methods Sixty porcelain discs were fabricated and randomly divided into five groups (n=12), which were sequentially grounded with water-cooled sandpapers of decreasing abrasiveness (220# , 400# , 600# , 800# and 1200# grit), and then all the specimens were glazed. Before and after glazing, the surface roughness (Ra) μm of the same specimens were evaluated quantitatively with profilometer and qualitatively using scanning electron microscopy (SEM). Results The smoothest surfaces were obtained with 1 200# sandpapers griting prior to overglazing (Ra =0. 19 μm),and 220# sandpapers griting prior to overglazing displayed the roughest surfaces (Ra =0. 55 μm) ; each group displayed significant difference before and after glazing (P < 0. 05). The images obtained through SEM were consistent with the profilometer readings. Conclusions The results suggest that decreasing the surface roughness of dental ceramic prior to glazing is of great importance in order to obtain the smoothest surface after glazing.
8.Relationship between Anemia,Iron Deficiency and Helicobacter Pylori Infection in Children
hai-feng, DONG ; xing-xian, YANG ; yan, DING ; yuan, QIN
Journal of Applied Clinical Pediatrics 2006;0(15):-
Objective To investigate the prevalence features of helicobacter pylori (Hp) infection,anemia and iron deficiency in a po-pulation of Wuhan children with 2 to 6 years old,and the relationship between Hp infection and anemia,iron deficiency in the children.Methods Randomly taking 95 children who had taken tests in our hospital's check-up centre in 2008 as the study objects,2 kinds of exa-mination were employed to detect Hp infection.Serum levels of Hp-IgG were measured by enzyme linked immunosorbent assay (ELISA) methods to evaluate past infection.The 14C urea breath test (14C-UBT) was conducted to obtain information of the presence of current/active Hp infection.In the morning 3 mL fasting venous blood was collected to determine the serum levels of Hp-IgG antibodies and ferritin.Hemoglobin values were determined with a hemoglobinometer.Serum levels of C-reactive protein (CRP) were tested in order to determine whether the children had evidence of current inflammation or infection.In addition,demographic information such as age and gender of the children and information about their use of antibiotics within the prior month were recorded.All cases were divided into 2 groups including the Hp infection group and non-Hp infection group according to laboratory examinations,then the Logistic regression was applied to analyze the relationship between Hp infection and anemia,iron deficiency.The Kappa identity test was taked to compare the 2 measures.Results Of the 95 children,18.9% were anemic and 36.8% were iron deficient.Forty percent of the cohort had Hp-IgG antibodies,74.4% tested positive by the UBT.Presence of Hp-IgG emerged as a significant risk factor for anemia,iron deficiency in adjusted analysis controlling for demographic factors,current inflammation,and antibiotic use.Conclusions Findings from different measure of Hp may reflect different stages of infection,with UBT results reflecting an earlier stage of infection,and presence of Hp-IgG reflecting established Hp infection associated with anemia,iron deficiency.
9.Diagnosis and treatment of mucinous tumor of the bile duct: our experience on 11 patients
Fangshui YUAN ; Guangli REN ; Shiming YANG ; Xianguang FENG ; Jingqiang ZHOU
Chinese Journal of Hepatobiliary Surgery 2017;23(6):380-382
Objective To study the diagnosis,treatment and therapeutic results of 11 patients who suffered from mucinous tumor of the bile duct.Methods Eleven patients who were diagnosed to suffer from mucinous tumor of the bile duct were retrospectively studied.Three patients who presented with obstructive jaundice were diagnosed on ERCP,and 8 patients who had extra-and intrahepatic cholangiolithiasis were diagnosed by biopsy during choledochoscopy.Results One of the 3 patients who underwent ERCP died from obstructive jaundice after failed drainage of bile using endoscopic nasobiliary drainage (ENBD).The remaining two patients underwent laparoscopic common bile duct exploration and T tube drainage.The eight patients who had extra-and intrahepatic cholangiolithiasis were diagnosed by biopsy during choledochoscopy.Conclusions The clinical presentation of mucinous tumor of bile duct is non-specific and the preoperative misdiagnosis rate is high.Common bile duct exploration,T tube drainage and long-term T tube drainage is a good way to treat mucinous tumor of the bile duct.
10.Blood-saving effect of tranexamic acid in pediatric patients undergoing radical correction of tetralogy of Fallot with cardiopulmonary bypass
Li XIA ; Feng YUAN ; Pengju YANG ; Tieli DONG
Chinese Journal of Anesthesiology 2015;35(6):677-679
Objective To evaluate the blood-saving effect of tranexamic acid in pediatric patients undergoing radical correction of tetralogy of Fallot with cardiopulmonary bypass (CPB).Methods A total of 56 children of both sexes,aged 11 months-14 yr,with body mass index of 9.8-21.4 kg/m2,of ASA physical status Ⅱ or Ⅲ,with left ventricular ejection fraction >50%,scheduled for elective radical correction of tetralogy of Fallot with CPB,were randomly divided into 2 groups using a random number table:tranexamic acid group (TA group,n =30) and normal saline group (NS group,n =26).Anesthesia was induced with iv midazolam,sufentanil,vecuronium and propofol.The children were endotracheally intubated and mechanically ventilated.Anesthesia was maintained with inhalation of 1%-2% sevoflurane and infusion of propofol,sufentanil and vecuronium.After induction of anesthesia,a loading dose of tranexamic acid l0 mg/kg was intravenously infused over 20 min before skin incision,followed by infusion at a rate of 10 mg · kg-1 · h 1 until the end of surgery in TA group,while the equal volume of normal saline was given instead in NS group.The volume of chest tube drainage at 24 h after surgery and volume of allogeneic red blood cells,fresh frozen plasma,platelet and cryoprecipitate transfused were recorded.The requirement for re-thoracotomy for bleeding,and the incidence of hepatic artery and portal vein thrombosis were also recorded.Results Compared to NS group,the volume of chest tube drainage at 24 h after surgery and volume of allogeneic red blood cells,fresh frozen plasma,platelet and cryoprecipitate transfused were significantly reduced in TA group.No re-thoracotomy was required in TA group,and the rate of re-thoracotomy was 15% in NS group.No hepatic artery and portal vein thrombosis were detected in group TA.Conclusion Tranexamic acid (loading dose 10 mg/kg,maintenance dose 10 mg· kg-1 · h-1) can provide blood-saving effect and has high security in pediatric patients undergoing radical correction of tetralogy of Fallot with CPB.