2.Necessity of moral health education for college students
Junlong HUANG ; Xinghua SHEN ; Qian MA ; Chunlei JIANG
Chinese Journal of Medical Education Research 2005;0(05):-
The idea of moral heath deserves our attention and consideration.Moral health contains deep humanistic meaning and value pursuit.The aim for college education includes instructing the students to think about the basic questions for life and humanity.Education for moral health is necessary for achieving moral health and we have so much work to do.
3.Clinical and molecular characteristics of bloodstream infection caused by K. pneumonia
Binbin LI ; Yingmei LIU ; Chunlei WANG ; Yuyu ZHANG ; Hong SHEN ; Hui LI ; Bin CAO
Chinese Journal of Laboratory Medicine 2015;(9):627-631
Objective To investigate the clinical features and molecular characteristics of bacteremia caused by K. pneumoniae and study on the differences between classical and hypervirulent K. pneumonia( hvKP) . Methods The clinical features of 70 cases of K. pneumoniae bacteremia collected from Beijing Chaoyang Hospital from 2008 to 2012 were retrospectively analyzed. The patients were identified according to the records from the Clinical Microbiology Department. Patients′ data were obtained from medical records. The molecular characteristics of the K. pneumoniae strains were also studied using PCR, multilocus sequence typing and pulsed field gel electrophoresis( PFGE) methods. Data were analyzed using the statistical package SPSS for windows version 17. 0. For categorical data, different groups were compared using the Chi-square test to analyze the quantitative variables. P≤0. 05 was considered to be statistically significant. All susceptibility data were analyzed using Whonet, version 5. 6. Results The hvKP was identified from 31. 4% of the patients with K. pneumoniae bacteremia, which displayed 4 serotypes ( K1, K2, K20, and K57). About 40. 9% (9/22) hypervirulent strains were isolated from patients without underlying diseases, while 95. 8% (46/48) of the classic K. pneumoniae infections were found in patients with the presence of one or more underlying diseases. More hvKP positive patients (95. 5%, 21/22) had community-acquired infections compared with classical K. pneumonia (cKP) infected patients (35. 4%, 17/48). There was a significant difference between these two groups (χ2 =21. 912,P <0. 001). Two ESBLs-producing hvKP strains were found. The 22 hvKP isolates had 14 different PFGE patterns, among which 6 isolates ( patients with primary liver abscess) shared similar PFGE patterns. Conclusions The
emerging hvKP was prevalent in patients with severe community-acquired infections in healthy individuals. Two ESBLs-producing hvKP strains were identified. Drug resistance had a rising trend, which called for more attention in clinical settings.
4.Low frequency, repetitive transcranial magnetic stimulation can alleviate non-fluent aphasia after stroke
Ying SHEN ; Zhifei YIN ; Qiumin ZHOU ; Fang CONG ; Wenchao YI ; Chunlei SHAN
Chinese Journal of Physical Medicine and Rehabilitation 2016;38(3):170-174
Objective To investigate the effects of low frequency repetitive transcranial magnetic stimulation (rTMS) on non-fluent aphasia in patients after stroke.Methods Forty stroke patients displaying non-fluent aphasia were randomly assigned to an rTMS group and a control group using a random number table.Both groups were treated with conventional language therapy,while the rTMS group was additionally given 0.5 Hz rTMS over the Broca's homologues of the unaffected hemisphere 5 days a week for 3 weeks.The patients were stimulated at 90% of the motor threshold (MT),with 16 second trains and intervals of 3 seconds 48 times (384 pulses) in a session.Before and after the 3 weeks of treatment,the Western Aphasia Battery (WAB) and the Communicative Abilities in Daily Living (CADL) test were conducted in both groups to evaluate their language function and communication ability.Results Only spontaneous speech improved significantly (P<0.05) in the control group after 3 weeks of treatment.In the rTMS group,the spontaneous speech,auditory comprehension,repetition,naming and aphasia quotient (AQ) had all improved significantly (P<0.05).Moreover,after the treatment,the average score of the auditory comprehension (153.90± 31.79),repetition (82.65± 15.14),naming(81.28±22.12) and AQ (63.66± 13.64) of the rTMS group were significantly higher than those of the control group (P<0.05).Conclusion rTMS applied to the Broca's homologues of the unaffected hemisphere can significantly improve language function in those exhibiting non-fluent aphasia after stroke.
5.Inhibition of cardiac hypertrophy by mitofusin 2 in neonatal rat cardiomyocytes
Chunlei CHEN ; Tao SHEN ; Ming ZHENG ; Yanhong GUO ; Xiaojun ZHU ; Guanghui CHEN
Journal of Peking University(Health Sciences) 2003;0(05):-
Objective:To study the expression and function of Mitofusin 2(Mfn2)in cultured neonatal rat cardiomyocytes during PE-induced hypertrophy.Methods:The hypertrophy neonatal rat cardiomyocytes model was induced by 0.01 mol/L PE.RT-PCR and Western blot were applied to assess Mfn2 mRNA expression and protein level respectively.Cultured neonatal rat cardiomyocytes were treated by PE after Ad GFP or Ad Mfn2 infection,the protein synthesis was determined by 3H-leucine incorporation assay.Results:PE led to ANF mRNA level(by~1 fold,P
6.Effect of Tianyizhike Syrup on dispelling phlegm and relieving asthma
Guiyuan LU ; Pingfan LAI ; Chunlei FAN ; Kangke SHEN ; Senlin SHI ; Weihong GE
Chinese Traditional and Herbal Drugs 1994;0(04):-
Object To observe the effect of Tianyizhike Syrup on dispelling phlegm and relieving asthma. Methods The phenol red secreting tests in mice, capillary method in rats, asthma induced by spraying and trachea screwy strip method on guinea pig were adopted for observing the related pharmacological effect in different doses of Tianyizhike Syrup. Results Tianyizhike Syrup could obviously increase the amount of the mice secreting phenol red and the rat dispelling phlegm, prolong the latent period of the guinea pig asthma and significantly enlarge the bronchia smooth muscle. Conclusion Tianyizhike Syrup has a significant effect of dispelling phlegm and relieving asthma.
7.Anesthetic Effect of Isoflurane and Sevoflurane in Mice with Oral Administration
Xiaolin XU ; Yinbao CHEN ; Suyang QI ; Hui WANG ; Chunlei SHI ; Jue WANG ; Bin SHEN ; Tijun DAI ; Lichun XU
China Pharmacy 2001;0(09):-
OBJECTIVE:To investigate the analgesic and hypnotic effects of oral isoflurane(Iso)and sevoflurane(Sev). METHODS:180 mice were randomly divided into 18 groups(n=10). It included in hot-plate test(n=60),writhing test(n= 60),i.e. NS group,Iso1 group(1 mL?kg-1),Iso2 group(2 mL?kg-1),Iso3 group(3 mL?kg-1),Sev1 group(5 mL?kg-1),Sev2 group(10 mL?kg-1). Another six groups were included in sleeping test,i.e. NS group,Iso1 group(6 mL?kg-1),Iso2 group(8 mL?kg-1),Iso3 group(10 mL?kg-1),Sev1 group(20 mL?kg-1),Sev2 group(40 mL?kg-1). Hot-plate test,writhing test,sleeping test were employed to evaluate the hot- plate pain threshold(HPPT),writhing times(WT)and sleeping time(ST)respectively after i.g. administration of Iso and Sev to evaluate analgesic and hypnosis effect. RESULTS:As compared with NS group,Iso(1~3 mL?kg-1)and Sev(5,10 mL?kg-1)with intragastric administration could increase the HPPT and decrease the WT(P
8.Action verb processing for exciting the motor cortex and promoting the recovery of upper limb function after stroke
Sicong ZHANG ; Xiangtong JI ; Quan WANG ; Haofeng SHEN ; Yixi ZHU ; Ruiping HU ; Wei CHEN ; Tifei YUAN ; Chunlei SHAN
Chinese Journal of Physical Medicine and Rehabilitation 2017;39(6):412-417
Objective To explore the effect of action verb processing on the excitability of the motor cortex and any effect on the upper limb motor function of stroke survivors.Methods Experiment 1:The motor evoked potential by transcranial magnetic stimulation (TMS-MEP) was measured while 18 healthy subjects were processing concrete action verbs or abstract verbs.Experiment 2:Eight hemiplegic stroke survivors were asked to read silently text describing concrete hand actions,and then repeat and explain the meaning of the action verbs used in the text.This was repeated for 30 minutes per day,5 days per week for 3 weeks.In the 2nd week the same training was conducted except that the text was about abstract verbs.The modified Ashworth scale (MAS),Fugl-Meyer assessment (FMA),the Hong Kong version of the functional test for a hemiplegic upper extremity (FTHUE-HK) and a simple test for evaluating hand function (STEF) were used to assess upper limb motor function before and after the training each week.Results Experiment 1:Processing the concrete action verbs induced significantly greater MEP than processing the abstract verbs.Experiment 2:The average FMA and STEF ratings improved significantly after the training each week.Training with the concrete action verbs resulted in significantly better FMA and STEF scores than with the abstract verbs.The average MAS score increased significantly week by week.There was significantly more improvement in the average FTHUE-HK rating after the 1st and 3rd week of training than after the 2nd week.Conclusion Action verb processing induces greater motor cortex excitation than abstract verb processing among healthy subjects and better improves the upper limb motor function of stroke survivors.
9.Role of zinc finger protein 1 in rat liver fibrosis and as related to TGFb expression.
Yujuan SHEN ; Yongping CHEN ; Zhenzhen LIU ; Xiaodong WANG ; Chunlei DAI ; Zhuo LIN
Chinese Journal of Hepatology 2014;22(4):285-288
OBJECTIVETo determine the role of zinc finger protein 1 (ZEB 1) in liver fibrosis and in regards to expression of the tumor growth factor-beta (TGFb) signaling factor using a rat model system.
METHODSSprague-Dawley rats were randomly divided into a normal (control) group, liver fibrosis (model) group and a liver fibrosis + therapy (ZEB1 intervention) group. The model group and the ZEB1 intervention group were given intraperitoneal injections of dimethylnitrosamine (DMN) for the first 3 days of each week over a 7-week period; starting at week 5, the ZEB 1 intervention group was started on a routine of every other day tail vein injections of recombinant ZEB1. During this 7-week period, the control group was given intraperitoneal injections of 0.9% NaC1 alone on the DMN schedule. Liver tissues were collected for pathological examination (with hematoxylin-eosin and Masson staining) and for detection of TGFb1 and ZEB 1 expression (by RT-PCR and western blotting). Measurement data were compared between groups using the single-factor analysis of variance test, followed by the least significant difference LSD test. Count data were analyzed by Fisher's exact test.
RESULTSThe model group's liver tissues showed degeneration and necrosis, as well as obvious fibrous septa accompanied by pseudo lobules. The ZEB 1 intervention group's liver tissues showed a significantly higher degree of fibrosis (x²=21.63, P=0), with more coarse fiber cords. The expression of ZEB1 and TGFb1 was significantly higher in the model group than in the control group (both P less than 0.05). However, the ZEB 1 intervention group showed the highest levels of ZEB 1 and TGFb1 expression (vs. model group, P less than 0.05).
CONCLUSIONZEB 1 may promote the development of liver fibrosis in rats through a mechanism involving the TGFb/Smad signaling pathway.
Animals ; Homeodomain Proteins ; pharmacology ; Liver ; drug effects ; metabolism ; Liver Cirrhosis, Experimental ; metabolism ; Male ; Rats ; Rats, Sprague-Dawley ; Transcription Factors ; pharmacology ; Transforming Growth Factor beta1 ; metabolism ; Zinc Fingers
10.Establishment and evaluation of a novel mouse model of orthotopic colon cancer in the mesenteric triangle of the cecum.
Xiangfeng HE ; Wen SHI ; Song WEN ; Yongqiang SUN ; Guojie LING ; Kang SHEN ; Chunlei PENG ; Baoan CHEN ; Jianhong WANG
Chinese Journal of Oncology 2015;37(6):418-421
OBJECTIVETo explore the feasibility of preparation of a mouse model of orthotopic colon cancer by injecting tumor cell suspension into mesenteric triangle of the cecum.
METHODSTwenty SPF 8-week old BALB/c mice (male:female = 1:1) were used in this study. The mouse caecum was exposed by laparostomy, and suspension of mouse colon adenocarcinoma CT26. WT cells was injected into the mesenteric triangle of cecum for preparation of a mouse model of orthotopic colon cancer.
RESULTSMouse orthotopic colon cancer was developed by injection of tumor cell suspension into mesenteric triangle of the cecum showing a successful rate of 100%, without intestinal obstruction, and the liver, spleen, diaphragm and mesenteric lymph nodes metastasis rates were high in all the 20 experimental mice.
CONCLUSIONSThe establishment of mouse models of orthotopic colon cancer by injection of tumor cell suspension into the mesenteric triangle is a simple, rapid, and easy to master procedure, causing less damage to the colon wall, safe and with less trauma to the mice. This method may provide an ideal mouse model of orthotopic colon cancer for the study of pathogenesis as well as liver metastasis mechanisms of colon cancer.
Adenocarcinoma ; pathology ; secondary ; Animals ; Cecal Neoplasms ; pathology ; Cecum ; Colonic Neoplasms ; pathology ; Disease Models, Animal ; Feasibility Studies ; Female ; Liver Neoplasms ; secondary ; Lymphatic Metastasis ; Male ; Mice ; Mice, Inbred BALB C ; Neoplasm Transplantation ; methods