Child ; Diarrhea ; diagnosis ; therapy ; Humans

Dyspnea ; diagnosis ; Humans ; Inhalation

Objective To investigate the frequency of micresatellite instability (MSI) and loss of heterozygosity (LOH) and select sensitive loci for studying microsatellite DNA imbalance in thymic squamous cell carcinoma. Methods 5 microsat-ellitc polymorphism markers and extrated DNA were selected from 9 specmiens of paired thymie squamous cell carcinoma/nor-real tissues. MSI and LOH in the specmiens of thymic carcinoma and relevant pericancerou tissues were detected by polymerase chain reaction (PCR) followed by 6% polyacrylamide gel electrophoresis(PAGE) with silver staining. Results MSI or LOH was detected in 9 thymic carcinoma tissues. The frequency of MSI or LOH was 66.7% (6/9) at loci of D6S1708, 33.3% (3/9) at TP53, 33.3% (3/9)at DM, 33.3% (3/9)at D11S988 and 0% (0/9)at D8S136, LOH at D6S1708 (5/6) was a common genetic alteration. DI1S988 had only LOH alteration. Conclusion D6S1708, TP53, DM, and D11S988 are sensi-tive loci for studying microsatellite DNA imbalance in thymic squamous cell carcinoma. Microsatellite DNA imbalance may play a certain role in occurrence and development of thymic squamous cell carcinoma, and the relationship between MSi or LOH.The linicopathological features of thymic squamous cell carcinoma needs further investigation.

Objective To compare the efficacy and safety of 2 mg/d and 4 mg/d of terazosin in the treatment of benign prostatic hyperplasia (BPH) with lower urinary tract symptoms (LUTS).Methods A total of 120 BPH patients were randomly divided into 2 groups receiving 2 mg or 4 mg terazosin per day for 2 months. Arterial blood pressure, International Prostatic Symptom Score (IPSS) and peak flow rate (Qmax) before and after treatment were compared while side effects were estimated. Results Forty-six patients receiving 2 mg and 54 patients receiving 4 mg terazosin completed this study. Patients' age and pre-treatment blood pressure, IPSS and Qmax had no difference between the 2 groups. The improvement of IPSS (including obstructive score, irritating score and total IPSS) and Qmax was significantly better in 4 mg group. The percentage of patients experiencing greater than 30% improvement in Qmax in the 4 mg treatment groups was significantly higher than that of the 2 mg group (46.3% vs 23.9%, P=0.02). Side effects were rare and mild in both groups.Conclusion The improvements of IPSS and Qmax are significantly greater in 4 mg treatment of terazosin than that of 2 mg with no obvious increase of side effects.

Objective To review the publication of general practice education in China mainland in 20 years from 1993 to 2012.Methods The research articles of general practice education published between January 1,1993 and December 31,2012 were searched from CNKI and Wanfang databases, and analyzed with bibliometric and literature management software NoteExpress 2, Epidata 3.1 and SPSS 13.0.Results Total 4 281 articles were retrieved and 241 education relevant articles were selected.29.9％ (72/241) of the 241 articles were on on-campus education, 67.6％ (163/241) were on continuing medical education and 4.5％ (11/241) were on post-graduation education.As to the published institutions, 58.5％ (141/241) were from the medical colleges and research institutions, 25.7％ (62/241 were from the tertiary hospitals, 3.7％ (9/241) were from primary care institutions, 1.7％ (4/241 were from the secondary hospitals and 5.8％ (14/241) were from the government departments.The general practice education grants increased from 1 in 2001 to 46 in 2012;20 of which were supported by provincial and ministerial level funds.Conclusion The contents of general medical education literature in China is mainly on on-campus education and continuing medical education;most of which were from the tertiary hospitals and the medical colleges and research institutions.The amount of research grants of general practice education were increasing year by year during 1993-2012, indicating that more attention had been paid to general practice education in mainland China in the last two decades.

Objective To find an effective CT-MRI image fusion protocol in brain tumor by analyzing the registration accuracy of different methods. Methods The simulation CT scan and MRI T1 WI imaging of 10 brain tumor patients obtained with same position were registered by Tris-Axes landmark 、Tris-Axes landmark + manual adjustment、 mutual information and mutual information + manual adjustment method. The clinical tumor volume (CTV) were contoured on both CT and MRI images respectively. The accuracy of image fusion was assessed by the mean distance of five bone markers ( d1-5 ), central position of CTV ( dCTV ) the percentage of CTV overlap ( PCT-MRI ) between CT and MRI images. The difference between different methods was analyzed by Freidman M non-parameter test. Results The difference of the means d1-5 between the Tris-Axes landmark、Tris-Axes landmark plus manual adjustment、mutual information and mutual information plus manual adjustment methods were 0. 28 cm ±0. 12 cm, 0. 15 cm ±0.02 cm, 0. 25 cm± 0. 19 cm, 0. 10 cm ± 0. 06 cm, ( M = 14. 41, P = 0. 002 ). the means dCTV were 0. 59 cm ± 0. 28 cm,0. 60 cm± 0. 32 cm, 0. 58 cm ± 0. 39 cm, 0. 42 cm± 0. 30 cm( M = 9. 72, P = 0. 021 ), the means PCT-MRI were 0.69% ±0. 18%, 0.68% ±0. 16%, 0.66% ±0. 17%, 0.74% ±0. 14% (M = 14.82,P=0.002),respectively. Conclusions Mutual information plus manual adjustment registration method was the preferable fusion method for brain tumor patients.

Objective To study the diagnosis and operative treatment of redundant sigmoid colon in children.Methods The length of sigmoid flexure was measured by enema examination in children with constipation,if it was over the normal scope,redundant sigmoid colon were come into existence.Twenty-three cases were treated by operated,hemicolectomy were done in 14 of 23 cases,others were treated by Soave′s procedure through transanal local excision.Results Symptoms disappeared completely in 18 of 23 cases and decreased in 5 cases.Nine cases were cured after Soave's procedure through transanal local excision.There were significant differences between 2 groups(P

OBJECTIVETo explore the effect of Qiling Decoction (QD) combined highly active antiretroviral treatment (HAART) on expression levels of peripheral blood Th17 and Treg cells in HIV/AIDS patients.

METHODSTotally 55 HIV/AIDS patients were randomly assigned to the treatment group (28 cases) and the combination group (27 cases). Besides, 21 HIV negative patients were recruited as the healthy control group. Those in the treatment group received HARRT alone, while those in the combination group received HAART combined QD. The observation lasted for 24 weeks. Meanwhile, according to peripheral blood CD4+ T cell counts before treatment, HIV/AIDS patients were assigned to three subgroups. For patients in subgroup 1, 1 cells/microL < CD4+ T cell counts < or = 100 cells/microL; For patients in subgroup 2, 101 cells/microL < CD4+ T cell counts < or = 200 cells/lL; For patients in subgroup 3, 201 cells/microL < CD4+ T cell counts < or = 350 cells/microL. Expression of peripheral blood Th17 and Treg cells, and number of CD4+ T cell counts were detected using flow cytometry (FCM)in HIV/AIDS patients at the pre-treatment baseline, week 4, 12, and 24, as well as those in the healthy control group.

RESULTSCompared with the healthy control group, CD4+ T cell counts and the baseline expression level of Th17 cells in the peripheral blood of HIV/AIDS patients significantly decreased, the expression level of Treg cells significantly increased P < 0.01). Compared with before treatment in the same group, CD4+ T cell counts all increased at week 4, 12, and 24 in the two treatment groups, showing statistical difference (P < 0.05, P < 0.01). There was no statistical difference in the effective rate at various CD4+ T cell levels between the two groups (P > 0.05). There was no statistical difference in expression levels of Th17 and Treg cells between the combination group and the treatment group at any time point (all P >0.05). The Th17/Treg ration significantly increased in the combination group after 24 weeks of treatment, showing statistical difference when compared with the treatment group (U = 2.135, P = 0.038).

CONCLUSIONQD could improve the immune balance of Th17/Treg cells, which might be one of its mechanisms for improving HIV/AIDS patients' immunity.

Acquired Immunodeficiency Syndrome ; drug therapy ; immunology ; Adult ; Antiretroviral Therapy, Highly Active ; CD4 Lymphocyte Count ; Case-Control Studies ; Drugs, Chinese Herbal ; therapeutic use ; Female ; HIV Infections ; drug therapy ; immunology ; Humans ; Male ; Middle Aged ; Phytotherapy ; T-Lymphocytes, Regulatory ; cytology ; Th17 Cells ; cytology

Objective To evaluate right atrial function in patients with idiopathic dilated cardiomyopathy (IDCM) and ischemic cardiomyopathy (ICM) by using two-dimensional speckle tracking imaging (2D-STI).Methods Study population consisted of 31 patients with IDCM,30 with ICM and 30 healthy subjects.High frame rate two-dimensional images were recorded from the apical four chamber view.Right atrial global longitudinal strain (GLS) was measured using two-dimensional strain soft ware.Results Compared with the controls,left ventricular ejection fraction (LVEF),tricuspid annular plane systolic excursion (TAPSE),right ventricular fractional area change (RVFAC),right ventricular fractional shortening (RVFS) and tricuspid annular peak systolic velocity(S') decreased (P ＜0.05),while right ventricular myocardial performance index (MPI) increased in IDCM and ICM group.There were no significant differences for all above echocardiographic parameters between IDCM and ICM patients.Compared with the controls,right atrial GLS decreased significantly in patients with IDCM and ICM,even much lower in patients with IDCM (P ＜0.001).Conclusions Measurement of right atrial strain using 2DSTI could be used for the assessment of right atrial dysfunction in patients with ICDM and ICM.

Objective To observe the targeted function of a mesothelin antibody modified nanoprobe in human pancreatic cancer BxPC3 cell.Methods The Fe3O4@SiO2 nanoprobe was prepared by St(o)ber method,and then quantum dots (CdTe) and mesothelin antibody was crosslinked to obtain the properties of targeting and fluorescent.Fluorescent nano Fe3O4@SiO2 probes and BxPC3 cells were incubated in vitro for 30 min.Its targeting performance was tested by the CCD imaging system and magnetic separation technology.HepG-2 and K562 cells with low expression of mesothelin were selected as reference cells.Results This preparation method of nanoprobe could produce a uniform and narrow distribution particle with particle size mainly ranging from 120 to 140 nm.The cell adsorption experiments showed that the adsorption efficiency of BxPC3,HepG-2 and K562 by nanoprobe without crosslinking antibody were less than 20％,as a non-specific adsorption; and the adsorption efficiency of BxPC3,HepG-2 and K562 by crosslinking mesothelin antibody nanoprobe were (53.9 ± 1.8) ％,(8.0 ± 2.1) ％ and (8.9 ± 2.3) ％ respectively,and the adsorption capacity with BxPC3 was significantly increased.Conclusions The nanoprobe modified by mesothelin antibody can effectively recognize BxPC3 cells which highly expressing mesothelin.