1.Pyodermatitis-pyostomatitis vegetans
Hongmei WANG ; Shufang QIAO ; Chun LIU ; Dan CHEN ; Yin XIAO ; Huaan JI
Chinese Journal of Dermatology 2013;46(10):736-737
A 42-year-old woman was admitted to the hospital for an 11-month history of pustular lesions of the mouth and lips as well as a 5-month history of pustules,ulcer,proliferative plaques on the head,neck and trunk.She had suffered from 8 years of ulcerative colitis.Dermatological examination revealed mild erosion of eyelids,swelling of buccal mucosa and oral lips,as well as typical snail track lesions formed by pustules,exudates and mucilage.There was a large pitchy proliferative plaque sized 20 cm × 10 cm with an elevated margin in the neck as well as palm-to persian walnut-sized proliferative plaques in the prothorax,armpit,periumbilical area and left inguinal area.Histopathology revealed epitheliomatous hyperplasia of the epidermis with the formation of eosinophilic microabscesses,and superficial dermal infiltrate with numerous neutrophils and eosinophils.Direct immunofluorescence tests for IgA,IgG,and C3 were negative.A diagnosis of pyodermatitis-pyostomatitis vegetans was made.The patient was given intravenous methylprednisolone 40 mg/day and symptomatic treatment,which leaded to a gradual subsidence of skin lesions.
2.Holistic view on vulnerability of HIV/AIDS infection among youth out of schools
Chun CHANG ; Lei CHEN ; Xinying SUN ; Luzeng ZHANG ; Dan TIAN ; Xiaodan ZHANG
Journal of Peking University(Health Sciences) 2004;0(02):-
Objective:To expose the vulnerability of HIV/AIDS infection among youth out of schools in a holistic view through understanding lifestyle,peer relations,awareness of HIV/AIDS,and HIV/AIDS prevention service of the youth.Methods:A cross-sectional survey based on the collective random sampling was conducted among 584 youth out of schools with or without a job in Anshan City,Liaoning Province in October 2005.Results:The awareness rate of HIV/AIDS among youth out of schools was 58.9%,and 65.6% of the subjects never accepted any health service related to HIV/AIDS prevention.42.6% of the respondents had sexual experience,and the rate of having sexual experience among males(62.3%)was higher than that of females(37.7%).And 30.5% of the youth seldom or never used a condom,51.2% of the youth having sex didn't use a condom in his/her last sex.28.2% of the youth having sex were ever involved in commercial sex relations.22 of the respondents(3.8%)had the experience of drug substance,the rate of having sex experience among youth who used the substance was higher than that of the youth who never used the substance.Smoking,alcohol abusing,visiting recreation places,high month consumption were the risk factors of pre-marital sex,and high awareness of HIV/AIDS was the protective factor of pre-marital sex.Conclusion:The youth out of schools were vulnerable in sexual behavior,substance use,peer influencing,social environment,and HIV/AIDS prevention service in terms of HIV/AIDS infection.
3.A study of correlation analysis on ocular ischemic disease and carotid stenosis
Dan, ZHU ; Lin, LI ; Li-chun, AN ; Jie, CHEN ; Shi-hui, WEI
Chinese Journal of Experimental Ophthalmology 2011;29(12):1116-1119
Background Carotid stenosis is one of the important causes of ocular ischemic diseases,To study their relationship is helpful for us to classify and manage the ocular ischemic diseases.Objective This study was to investigate the correlation between ocular ischemic diseases and carotid stenosis.Methods Twenty patients with internal carotid artery stenosis rate more than 60% defined by digital subtraction angiography(DSA) or magnetic resonance angiography (MRA) were selected,including 9 patients with lateral carotid artery stenosis and 11 patients with bilateral carotid artery stenosis.The best corrected visual acuity,intraocular pressure and fundus examinations were carried out,and the peak systolic velocity (PSV) and end diastolic velocity (EDV) of the central retinal artery(CRA) were detected with color doppler flowimaging (CDFI).The resistance index(RI) was calculated by the formula RI =PSV- EDV/PSV.The correlation between internal carotid artery stenosis rate and PSV or RI was evaluated by Spearman rank correlated analysis.Results The subjective inanifestations included transient amaurosis in 77.4% frequency and visual blur in 22.6% frequency in the 31 carotid artery stenosis.Twelve eyes(38.7% ) appeared the ocular vascular abnormality.Other 2 patients were diagnosed as hypoperfusion retinopathy complicated by neovascular glaucoma.A negative relationship was found between internal carotid artery stenosis rate and PSV of CRA ( r =-0.41,R2 =0.168,P =0.021 <0.05 ),but no significant relationships was found between internal carotid artery stenosis rate and RI ( r =- 0.26,R2 =0.068,P =0.159 ).Conclusions Carotid artery stenosis can cause the of ocular ischemic symptoms.The characteristics of retinal hemodynamics is the type of low speed and normal resistance.
4.Assessment of left ventricular function in patients with aortic regurgitation using tow-dimensional speckle-tracking echocardiography
Chen-yang, WANG ; Chun-lei, LI ; Hong-yun, LIU ; Dan, JIN ; You-bin, DENG
Chinese Journal of Medical Ultrasound (Electronic Edition) 2013;(9):31-35
Objective Analyse the change of left ventricular (LV) longitudinal and radial strain in patients with aortic regurgitation (AR) and discuss the relationship between the 2D strain parameter and the filling and ejection of LV. Methods Thirty healthy controls and 45 patients with AR (24 patients with moderate AR and 21 with severe AR) were enrolled in this study, LV systolic global peak radial strain(GRS), systolic global peak longitudinal strain(GLS) and systolic peak longitudinal strain(S), systolic peak longitudinal strain rate(SRs), early diastolic peak longitudinal strain rate(SRe) of every segment were measured or calculated using 2D-STE, early and late diastolic transmitral flow velocity (E, A) were recorded by pulsed Doppler echocardiography and early diastolic mitral annular velocity (Ea) were assessed by tissue Doppler imaging,the E/A and E/Ea ratio were calculated. Discuss the relationship of GLS and LV ejection fraction (LVEF), GLS and E/Ea using the Pearson correlation analysis. Results The GLS were (-20.09±1.47)%, (-18.68±1.52)%, (-12.56±3.25)%and the GRS were (46.71±7.65)%, (43.01±5.95)%, (28.52±6.13)% in control group, patients with moderate and severe AR (MAR group and SAR group) respectively. There were significant differences among the groups (F =82.08,47.69, both P < 0.01) as following:SAR group with control group and MAR group [ q=17.56,13.60 (GLS), q=13.44, 10.20 (GRS), all P<0.01),MAR group and control group [ q=3.42 (GLS), P<0.01]. The SRs of the apical segment were (-1.24±0.22)s-1, (-1.19±0.25)s-1, (-1.04±0.28)s-1 in control group,MAR group and SAR group respectively. There were significant differences among the groups (F=4.47, P < 0.05) as following:SAR group with control group and MAR group ( q=4.02,3.28, both P<0.01). The S, SRe of apical segment and the S,SRs,SRe of basal and midventricular in MAR group were all lower than the control group ( q=4.42, 5.01, 3.48, 3.24, 4.78, 4.12, 3.61, 6.72, all P < 0.01). Pearson correlation analysis revealed the GLS had a relationship with LVEF and E/Ea ( r=-0.73, 0.64, both P<0.01). Conclusion The reduced longitudinal strain and strain rate could detect LV dysfunction in patients with AR in early stage and the GLS had the ability to reflect the diastolic filling and systolic ejecting of the LV.
5.Ischemic postconditioning attenuates pneumocyte apoptosis after lung ischemia/reperfusion injury via inactivation of p38 MAPK.
Hai-E CHEN ; Ying-Chun MA ; Jin-Bo HE ; Lin-Jing HUANG ; Dan CHEN ; Lei YING ; Wan-Tie WANG
Chinese Journal of Applied Physiology 2014;30(3):251-256
OBJECTIVETo investigate the role of p38 MAPK on ischemic postconditioning (IPO) attenuating pneumocyte apoptosis after lung ischemia/reperfusion injury (LIRI).
METHODSForty adult male SD rats were randomly divided into 5 groups based upon the intervention (n = 8): control group (C), LIR group (I/R), LIR + IPO group (IPO), IPO + solution control group (D), IPO + SB203580 group (SB). Left lung tissue was isolated after the 2 hours of reperfusion, the ratio of wet lung weight to dry lung weight (W/D), and total lung water content (TLW) were measured. The histological structure of the left lung was observed under light and electron transmission microscopes, and scored by alveolar damage index of quantitative assessment (IQA). Apoptosis index (AI) of lung tissue was determined by terminal deoxynuleotidyl transferase mediated dUTP nick end and labeling (TUNEL) method. The mRNA expression and protein levels of and Bax were measured by RT-PCR and quantitative immunohistochemistry (IHC).
RESULTSCompared with C group, W/D, TLW, IQA, AI and the expression of Bax of I/R were significantly increased, the expression of Bcl-2 and Bcl-2/Bax were significantly decreased (P < 0.05, P < 0.01), and was obviously morphological abnormality in lung tissue. Compared with I/R group, all the indexes of IPO except for the expression of Bcl-2 and Bcl-2/ Bax were obviously reduced, the expression of Bcl-2 and Bcl-2/Bax were increased (P < 0.05, P < 0.01). All the indexes between D and IPO were little or not significant( P > 0.05). The expression of Bcl-2 and Bcl-2/Bax of SB were significantly increased and other indexes were reduced than those of IPO (P < 0.05, P < 0.01).
CONCLUSIONIPO may attenuate pneumocyte apoptosis in LIRI by inactivation of p38 MAPK, up-regulating expression of Bcl-2/Bax ratio.
Alveolar Epithelial Cells ; cytology ; Animals ; Apoptosis ; Disease Models, Animal ; Ischemic Postconditioning ; Lung ; blood supply ; enzymology ; pathology ; Male ; Proto-Oncogene Proteins c-bcl-2 ; metabolism ; Rats ; Rats, Sprague-Dawley ; Reperfusion Injury ; enzymology ; pathology ; prevention & control ; bcl-2-Associated X Protein ; metabolism ; p38 Mitogen-Activated Protein Kinases ; metabolism
6.Relationship between collagen Ⅰ,MMP-2 and TIMP-2 gene expression and atrial fibrosis and fibrillation during heart failure in dogs.
Ya-Zhou LIN ; Lin CHEN ; Chun-Xuan XU ; Yu-Lian DENG ; Xiao-Dan WU ; Bin CHEN ; Xi-Zhong HU ;
Chinese Journal of Geriatrics 1995;0(02):-
Objective To study the relationship between Couagen Ⅰ,MMP-2,TIMP-2 gene expression and atrial fibrosis during heart failure(HF)in dog.Methods Fourteen dogs were used and randomized into HF induced by ventricular tachypacing and control group.Burst atrial pacing was used to induce atrial fibrillation(AF).And the mRNA and protein level of collagen Ⅰ,MMP-2 and TIMP-2 were detected by RT-PCR and immunohistochemical technique.Tissue samples were stained with Mallory trichrome.Results Left ventricular ejection fraction (LVEF) decreased from (67.4? 6.0)% to (29.2?7.8)%,the inducible rate of AF(7/7 vs 2/7) and sustained AF(5/7 vs 0/7) increased and duration of AF stabeatrial fibrillation(SAF) [(462.12?181.43)s vs(0.57?0.57) s] prolonged significantly in HF group.Atrial fibrous tissue content and atrial size of HF group were significantly greater than the controls dogs(268.8% in lefe atria and 190.3% in right atria).The mRNA and protein level of collagen Ⅰ(56.2% and 132.2% in lefe atria,37.4% and 78.0% in right atria)and MMP-2 (100.0% and 115.7% in lefe atria,65.7% and 96.8% in right atria) increased evidently in both lefe atria and right atria,TIMP-2 mRNA decreased 46.3% in lefe atria and had no change in right atria and that its protein had no change in both atrium,whereas the ratio of MMP-2/ TIMP-2 of mRNA and protein increased markedly in both lefe atria (285.3% and 148.8%)and right atria (106.1% and 134.7%)of HF group.SAF had a positive correlation with fibrosis and the gene level of collagen Ⅰ in lefe atria,the ratio of MMP-2/TIMP-2 had a positive correlation with fibrosis and collagen Ⅰ gene level in lefe atria during HF.Conclusions The changes of collagen Ⅰ,MMP-2 and TIMP-2 gene expression appear to be a molecular mechanism of AF, and the molecular remodeling of collagen Ⅰ induced by regulation unbalance of MMP-2/TIMP-2 appears to be an important mechanism of atrial fibrosis during HF.
7.Study of the clonal origin and development of MDS by FISH analysis of dysplasia cells in bone marrow of patients with MDS.
Chun-Mei FU ; Zi-Xing CHEN ; Dan-Dan LIU ; Jun ZHANG ; Jin-Lan PAN
Journal of Experimental Hematology 2013;21(3):650-656
This study was purpose to explore whether the dysplasia of myelodysplastic syndromes (MDS) is unspecific feature or results of the abnormal clone, and to provide the evaluation of abnormal clone changes in bone marrow cells of MDS patients. The dysplasia cells in bone marrow smears was analyzed by morphologic observation, the clonal origin and development in 16 cases of MDS with abnormality of chromosome karyotypes were investigated by FISH combined with morphologic observation. The results found that both the dysplastic and nondysplastic bone cells displayed abnormal clones in the erythroid and granulocytic cells. The dysplastic bone marrow cells displayed more abnormal clones than the nondysplastic bone marrow cells in most of the patients, and the abnormal clones displayed more dysplastic cells than the normal clones. Most of the dysplastic and nondysplastic megakaryocytes were derived from abnormal clones. The abnormal clone showed a decreasing trend from the primitive stage to the terminal stage of cell differentiation. It is concluded that there is a correlation between the dysplastic cells and the abnormal clones in MDS, but the dysplasia of bone marrow cells is not a specific feature. The abnormal clones can differentiate into mature granulocytes and erythrocytes, and can be in coexistence with cells originated from the normal clones.
Adult
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Aged
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Bone Marrow Cells
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cytology
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pathology
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Bone Marrow Examination
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Clone Cells
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Female
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Humans
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In Situ Hybridization, Fluorescence
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Karyotyping
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Male
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Middle Aged
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Myelodysplastic Syndromes
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blood
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genetics
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Young Adult
8.An Effect Evaluation on the Intervention Mode of AIDS High -risk Behaviors
Huan-Long LI ; Dan-Dan LIU ; Chang-Ke CHEN ; Xiao-Chun LU
Journal of Preventive Medicine 2014;(5):477-480
Objective To explore and assess the intervention mode consist of governments,professional organizations and volunteers for AIDS high -risk behaviors.Methods Commercial sex workers,gays,venereal outpatients and other target population were chosen to be under intervention measures by AIDS high -risk behaviors intervention team consist of government,CDC and volunteers.Then awareness rate,use rate of condom and care rate of infectious were calculated. Results A team of 313 volunteers were set up.The cadres,students and owners of public places were trained and it reached 42 000 person training times in 2012.The awareness rate of AIDS -prevention knowledge among commercial sex workers increased from 76.67% to 91.41% and the use of condom increased from 66.67% to 89.74%.The care rate of infections /patients increased from 0 to 100%.Conclusion This model plays an important role in the AIDS prevention and treatment.It is a good working mechanism to build the intervention mode consist of governments,professional organizations and volunteers.
9.Protective effect of compound tongfu granule on intestinal mucosal barrier in patients with cirrhosis of decompensation stage.
Chun-yan JIANG ; Bao-en WANG ; Dan CHEN
Chinese Journal of Integrated Traditional and Western Medicine 2008;28(9):784-787
OBJECTIVETo explore the intestinal mucosal barrier protective effect of herbal medicine Compound Tongfu Granule (CTG) in patients with liver cirrhosis of decompensation stage.
METHODSFifty patients enrolled were randomly assigned to the control group (26 cases) and the CTG group (24 cases), and 30 healthy adults were set up as normal control. After 2-week treatment, the intestinal permeability (IP, represented by urinary lactulose/mannitol excretion rate), plasma endotoxin (EDT) level, and change of enteric bacteria (EB) in patients were observed before and after treatment, and compared with those in the normal control.
RESULTSBefore treatment, cirrhotic patients showed significantly higher levels of IP, EDT, and intestinal bacilli, but a lower amount of enteric bifidobacteria as compared with those the normal control. After 2-week treatment, levels of EDT and urinary excretion rate of lactulose in the CTG group were lowered more significantly than those in the control group (P < 0.05), while the amount of bifidobacteria in the CTG group increased accompanied with intestinal bacilli significantly lowered to near the levels in the normal control (P < 0.05, P < 0.01).
CONCLUSIONCTG can improve the intestinal barrier function, correct the intestinal bacteria disturbance, and significantly reduce the entero-derived endotoxemia in cirrhotic patients of decompensation stage.
Adult ; Aged ; Aged, 80 and over ; Bifidobacterium ; isolation & purification ; metabolism ; Cell Membrane Permeability ; drug effects ; Drugs, Chinese Herbal ; therapeutic use ; Endotoxins ; metabolism ; Humans ; Intestinal Mucosa ; drug effects ; metabolism ; microbiology ; pathology ; Lactulose ; metabolism ; Liver Cirrhosis ; drug therapy ; metabolism ; microbiology ; pathology ; Male ; Middle Aged ; Treatment Outcome
10.Atorvastatin Decreases TLR4 Expression on Circulating CD_(14)~+ Monocytes in Patients with Acute Coronary Syndromes
Nan NIU ; Peng QU ; Dan XU ; Ying CUI ; Yan-Chun DING ; Hong-Yan WANG ; Ning ZHU ; Hai-Ying CHEN ;
Chinese Journal of Hypertension 2007;0(05):-
Objective Previous studies indicated that activation of Toll-like receptor4 (TLR4) was involved in the progression and instability of atherosclerotic plaque.Anti-inflammatory effects were shown in statins. However,the mechanisms underlying these effects have not been well explored.We test the hypothesis that a por- tion of these anti-inflammatory effects are mediated by regulation of TLR4 expression.Methods One hundred twenty-one subjects (22 normal persons,17 patients with stable angina and 82 patients with ACS) were recruited. 41 patients with ACS were randomized to atorvastatin 10 mg/d or atorvastatin 40 mg/d on top of routine anti-anginal treatment.Serum level of hsCRP,blood lipids,TLR4 expression on CD_(14)~+ monocytes were measuered before and after one month treatment.TLR4 expression on CD_(14)~+ monocytes were quantified via flow-cytometry.Results hsCRP and TLR4 expression on CD_(14)~+ monocytes in patients with ACS were higher than patients with stable angina and normal persons(hsCRP,ACS:11.1?14.3 vs stable angina:2.5?2.7 mg/L vs normal:2.3?4.2 mg/L,P