Investigation of the roles of prostaglandins(PGs) and leukotrienes(LTs) inthe changes of hemodynamics and hypoxic pulmonary vasoconstriction(HPV) induced bychronic cigarette smoking in Wistar rats.After exposure to either smoke or room air, rats were anesthetized, the changes ofhemodynamics and hypoxic pulmonary vasoconstriction were measured. Blood samplesdrawn through the carotid arterial cannula were analyzed with radioimmunoassay(RIA)for PGs and bioassay for LTs in plasma. The results showed that cigarette smoking for onemonth did not change the pulmonary arterial pressure nor the pulmonary vascularresistance(PVR) in rats, while the pressure response of pulmonary vessels to hypoxiawas reduced significantly, which could be abolished by indomethacin. Cigarette smokingcould increase the concentration of 6-Keto-PGF_1?but not that of TXB_2, in arterial plasma,during hypoxia and it reduced the plasma level of LTs as well. These results suggestedthat chronic cigarette smoking might have reduced HPV by two ways: i. e. increasing theptoduction of vasodilative PGs, especially PGI_2, and reducing LTs production duringhypoxia.

Objective To evaluate the effects of combined induction therapy of interferon(IFN) and chemotherapy on survival of the patients with small cell lung cancer(SCLC)by meta-analysis.Methods Search all of clinical trials for addition of IFN to initial chemotherapy and single chemotherapy for induction therapy in SCLC patients in MEDLINE、EMBASE and COCHRANE Library.The references of related studies and education books of ASCO and ESMO meeting were handsearched.The quality of included trials was evaluated.Data were extracted by two reviewers independently with a designed extraction form.Revman 4.2.7 software was used for data analysis.Results The addition of IFN increased 1-year survival and response rate,but both of the results had no significant statistical difference.Conclusion IFN-chemotherapy induction treatment might not influence survival and response rate of patients with NSCLC.To resolve the problem,a series of controlled,prospective,randomized,double-blind,well-designed,multi-center trials should be performed.

Objective To investigate Zhang CiGong who was traditional Chinese medicine doctor and educator ’s academic achievement. [Methods]To summarize and analysize Zhang CiGong’s learning experiences,academic thoughts and examples of clinical experiences. [Results]Zhang CiGong had no prejudice on academic schools, integrated various academic schools’s advantages and then turned into his’s own feature. Zhang CiGong researched and clarified the essence of traditional Chinese medicine theory, and made it flourish. He found the real cause of the disease when treatment,used the holistic approach and syndrome differentiation treatment. He gathered his own experience into the ancients experience and emphasis on practice when he gave Chinese Herbal. [Conclusions]Zhang CiGong’s learning was great and we should learn from him.

ObjectiveDiabetes is an independent risk factor for coronary artery bypasss grafting(CABG). Off pump coronary artery bypasss (OPCAB) experience in 251 cases was reviewed to determine whether diabetes wou ld be applicable in OPCAB procedures.MethodsConsecutive 251 patients underwent OPCAB over 12 month period. This study included 71 diebetic patients (DM group) and 180 nondiabetic patients (NDM group). Preoperative v ariables were compared between the two groups by univariate analysis.R esultsNo differences were found regarding the length of stay in cardio intensive care unit [DM group(2.4?0.3)d; NDM group (2.4?0.3) d;P=0. 386], and sternal complication (DM group: 5.7%;NDM group: 3.9%;P=0.511) . In hospital complications were as follows: death rate(DM group: 2.8%; NDM gr oup: 1.1%; P=0.680); stroke (DM group: 2 8%; NDM group: 1 7%; P=0 623 ); hemofiltratioin renal failure (DM group: 2.8%; NDM group: 0.5%; P=0.194); myocardial infarction(DM group: 0%; NDM group: 0.5%;P=1.000); blood using were more frequent in DM group comparied with NDM group (P=0.111). ConclusionOPCAB in diabetic patients is as safe as in non diabetic patients.

Objective To compare the clinical effects between uniportal video-assisted thoracic surgery (VATS) and 3-portal VATS lobectomy for patients with lung cancer. Methods Patients were divided into uniportal VATS lobectomy group (n=45) and 3-portal VATS lobectomy group (n=53). The clinical data were compared between two groups, including the oper-ation time, intraoperative blood loss, number of lymph node dissection, length of incision, postoperative extubation time, post-operative pain score and postoperative hospitalization. Results There were no significant differences in intraoperative blood lose (128.75±18.32) mL vs (129.15±17.69) mL, lymph node dissection number (13.33±1.05) vs (13.12±1.38), duration of chest drainage (4.90±0.75)d vs (4.75±0.70)d, duration of hospital stay (7.52±1.16)d vs (7.55±1.10)d and incidence of seri-ous postoperative complications between two groups (P>0.05). The incision length (5.36±0.22)cm vs (7.44±0.35)cm, numeric pain intensity scale including first day(6.47±0.54) vs (6.86±0.52),third day(3.59±0.29) vs (4.05±0.25), and patient satisfac-tion scores (91.03 ± 2.62) vs (88.35 ± 2.97) were significantly better in uniportal VATS group than those of 3-portal VATS group (P<0.05). The operation time (143.81±17.97) min vs(130.11±15.03)min was longer in uniportal VATS group than that of 3-portal VATS group (P < 0.05). Conclusion Uniportal VATS lobectomy is safe and reliable for patients with early-stage lung cancer, which has less surgical injury, slighter pain, and higher satisfaction than 3-portal VATS lobectomy.

OBJECTIVE The head of malleus (HOM) was regarded as the landmark for the middle cranial fossa approach,and its relationship with internal auditory meatus(IAM) was measured. The purpose of this study was to find a safe method to locate IAM. METHODS Twelve heads of adult cadaver fixed with 10 % formaldehyde (23 sides) were microsurgically dissected from the middle cranial fossa approach. The foramen spinosum,Ferrein's foramen,greater petrosal nerve,lesser petrosal nerve,facial nerve,HOM,arcuate eminence,superior petrosal sinus,semicircular canal,and IAM were exposed. First,blue lines method was used to locate IAM. Second,HOM as the landmark was used to locate IAM. RESULTS The angles between the SSC and the longitude axis of IAM are 58.52??4.84?。 A perpendicular line (AB) was drew from the center of HOM to the longitude axis of the temporal bone (the longitude axis of the superior petrosal sinus),line BC was drew from the anterior 30?(28.93?? 6.07?) to the line AB. On the line BC,fundus of IAM can be located (6.69?1.10) mm medial to HOM,the center of the internal acoustic pore can be located (20.1?1.48)mm medial to HOM. CONCLUSION In the middle cranial fossa surgery,HOM can be used to locate IAM and its surroundings structures when traditional landmarks are unrecognized.

Task-driven teaching method is a kind of exploration.The prospective research on the application of task-driven teaching method in social medical insurance course is helpful to setting up a teaching situation,constructing a relaxed study environment,stiring up students’interest in the study and improving students’initiatives and creativity.

Objective To study on chromosome-and plasmid-mediated fluoroquinolones-resistant in Escherichia coli isolated from fecal samples of chicken,swine and people around the farm.Methods Anti-microbial susceptibility testing was carried out by disk diffusion testing and bmth microdilution testing.gyrA,gyrB,parC,pareE,qnr and aac(6')-I b-cr were examined by PCR,and the products were sequenced.Ex-presion of aac(6')-I b-cr by conjunction was tested too.Results The resistance to antimicmbial agents was much higher in strains isolated from chicken than that from swine and human.Among the E coli strains examined by PCR,most resistant strains carried two mutations in gyrA and/or two mutations in parC.In ad-dition,some resistant strains had mutations in parE with MIC of ciprofloxacin>16μg/ml.No(resistance) mutation was found in gyrB.Seven strains(25.O%)and one strain(11.1%)had aac(6)-I b-cr,variant isolated from chicken and swine,respectively.The strains harboring cr variant enzyme reduced the suscepti-bility to ciprofloxacin and norfloxacin by N-acetylation of the drugs. Conclusion There is a close relation-ship between high level quinolone resistance and the numbers of amino acid exchange in DNA gyrase and to-poisomeraae IV,and aac(6)-I b-cr may play some role for fluoroquinolone resistance.

Objective To study on plasmid-mediated quinolone-resistant in Escherichia coli strains isolated from fecal samples of chicken and swine from the nine farms around our country.Methods Antimi-crobial susceptibility testing was carried out by broth microdilution testing,gyrA,gyrB,parC,qnr and aac (6')- Ⅰ b-cr were examined by PCR,and the products were sequenced.Conjugation experiment was carried out to proved that the plasmid-mediated quinolone resistance was transferable.Results In the total 818 animal isolates,qnr and aac genes were detected in 38 (4.6%) and 75 (9.2%) strains.The qnrA,qnrB,and qnrS genes were detected in 1 (0.1%),9 (1.1%) and 28 (3.4%) of the isolates.All isolates were negative for qnrC,qnrD genes.Conclusion There is a close relationship between high level quinolone resistance and plasmid-mediated quinolone resistance.The results of the current study highlight food-producing animals as a potential reservoir of antimicrobial-resistant bacteria and clinically important resistance genes.More attention should be paid to the surveillance of such strains.

Objective To profile the phenotype and pathogens of cutaneous and mucous mycoses in a dermatology outpatient clinic in Nanchang region. Methods A review was performed to assess cutaneous and mucous mycoses diagnosed in the dermatology outpatient clinic of Dermatology Hospital of Jiangxi Province from 2006 to 2008. The relationship of clinical phenotype and pathogens to season, patients' age and gender was analyzed. Results A total of 7251 cases were collected, and the ratio of male to female patients was 2.3: 1. The most prevalent mycoses included tinea cruris (2702, 37.1%), pityriasis versicolor (1505, 20.8%) and tinea manus (727, 10.0%). In total, 4953 fungal strains were isolated from all the patients except for those with pityriasis versicolor, of them, Trichophyton rubrum accounted to 69.9%, Candida to 20.4%, and Trichophyton violaceum to 4.5%. Season, patients' age and gender were found to be associated with clinical phenotypes and pathogens of mycoses. Conclusions In the dermatology outpatient clinic of Nanchang region, tinea cruris is the most common superficial fungal disease, with the predominant pathogen being Trichophyton rubrum. Trichophyton violaceum is the primary pathogen of tinea capitis, which is different from other reports.