Ginsenoside Rg1 regulating BV2 microglia polarization in lipopolysaccharide-induced inflammatory response via peroxisome proliferator activated receptor γ / 解剖学报

[Abstract] Objective To establish an inflammation model by stimulating BV2 microglia by lipopolysaccharide, and to explore the regulation effect of ginsenoside Rg1 on inflammation by activating peroxisome proliferator activated receptor γ(PPARγ) receptor protein. Methods BV2 microglia were randomly divided into control group, model group, ginsenoside Rg1 group, rosiglitazone group and GW9662 group. The control group did not do any treatment, the model group was treated with 1 mg/ L lipopolysaccharide, and the other groups were treated with lipopolysaccharide added with 0. 4 mmol/ L ginsenoside Rg1, 10 μmol/ L rosiglitazone or 10 μmol/ L respectively. GW9662. The proliferation of BV2 microglia in each group was detected by CCK-8 method; PPAR-γ, phospho-NF-κB p65 (p-NF-κB p65), induced expression of inducible nitric oxide synthase(iNOS) and human arginase 1(ARG-1) proteins. ELISA was used to detect the inflammatory factors interleukin-1β(IL-1β), interleukin-6(IL-6), interleukin-8(IL-8) and the content of tumor necrosis factor-α (TNF-α). Results Compared with the control group, the cell proliferation rate in the model group was significantly increased, and the contents of IL-1β, IL-6, IL-8 and TNF-α increased significantly. The result of immunofluorescence and Western blotting showed that iNOS and p-NF-κB p65 increased significantly, and the positive expressions of PPARγ and ARG-1 decreased significantly(both P<0. 01). The expression level of TNF-α decreased, the positive expressions of iNOS and p-NF-κB p65 decreased significantly, and the positive expressions of PPARγ and ARG-1 increased significantly(all P<0. 01). Conclusion Ginsenoside Rg1 inhibits the inflammatory response of BV2 microglia after lipopolysaccharide stimulation, and its mechanism may be related to the regulation of PPARγ/ NF-κB pathway to promote the M2-type polarization of microglia.

Carotid endarterectomy combined with vertebral artery transposition treating vertebral artery V1 segment stenosis combined with ipsilateral carotid artery stenosis / 中国胸心血管外科临床杂志

@#Objective    To explore the treatment outcome of carotid endarterectomy combined with vertebral artery transposition in patients with severe stenosis to occlusion of the vertebral artery V1 segment and the ipsilateral carotid artery. Methods    From June 2017 to September 2020, patients with severe stenosis to occlusion of the vertebral artery V1 segment and the ipsilateral carotid artery treated with carotid endarterectomy combined with vertebral artery transposition in Fuwai Hospital were retrospectively analyzed. Results    Finally 12 patients were enrolled, including 10 males and 2 females with an average age of 67.8±6.0 years. Twelve patients were successfully operated and the follow-up time was 1-3 years. The stenosis degree of the V1 segment of the vertebral artery decreased from 83.5%±11.8% to 24.9%±14.3% (P<0.001). The stenosis degree of carotid artery decreased from 85.6%±11.0% to 0% (P<0.001). Postoperative follow-up showed that the symptoms of symptomatic patients before surgery improved. The 1-year and 3-year patency rates were 100.0%, and there were no peripheral nerve injury complications, perioperative deaths or strokes. Conclusion    Carotid endarterectomy combined with vertebral artery transposition can treat ipsilateral carotid artery  stenosis and vertebral artery stenosis at the same time, improve blood supply to the brain, improve patients' symptoms and has high promotion value.

Electroacupuncture in Treatment of Acute Gastrointestinal Injury in Patients with Severe Traumatic Brain Injury: A Multicenter Randomized Controlled Trial / 中国结合医学杂志

OBJECTIVE@#To evaluate whether electroacupuncture (EA) would improve gastrointestinal function and clinical prognosis in patients with severe traumatic brain injury (TBI) complicocted by acute gastrointestinal injury (AGI).@*METHODS@#This multicenter, single-blind trial included patients with TBI and AGI admitted to 5 Chinese hospitals from September 2018 to December 2019. A total of 500 patients were randomized to the control or acupuncture groups using a random number table, 250 cases in each group. Patients in the control group received conventional treatment, including mannitol, nutritional support, epilepsy and infection prevention, and maintenance of water, electrolytes, and acid-base balance. While patients in the acupuncture group received EA intervention at bilateral Zusanli (ST 36), Shangjuxu (ST 37), Xiajuxu (ST 39), Tianshu (ST 25), and Zhongwan (RN 12) acupoints in addition to the conventional treatment, 30 min per time, twice daily, for 7 d. The primary endpoint was 28-d mortality. The secondary endpoints were serum levels of D-lactic acid (D-lac), diamine oxidase (DAO), lipopolysaccharide (LPS), motilin (MTL) and gastrin (GAS), intra-abdominal pressure (IAP), bowel sounds, abdominal circumference, AGI grade, scores of gastrointestinal failure (GIF), Glasgow Coma Scale (GCS), Acute Physiology and Chronic Health Evaluation (APACHE II), Sequential Organ Failure Assessment (SOFA), and Multiple Organ Dysfunction Syndrome (MODS), mechanical ventilation time, intense care unit (ICU) stay, and the incidence of hospital-acquired pneumonia.@*RESULTS@#The 28-d mortality in the acupuncture group was lower than that in the control group (22.80% vs. 33.20%, P<0.05). Compared with the control group, the acupuncture group at 7 d showed lower GIF, APACHE II, SOFA, MODS scores, D-lac, DAO, LPS, IAP, and abdominal circumference and higher GCS score, MTL, GAS, and bowel sound frequency (all P<0.05). In addition, the above indices showed simillar changes at 7 d compared with days 1 and 3 (all P<0.05) in the EA group.@*CONCLUSION@#Early EA can improve gastrointestinal function and clinical prognosis in patients with severe TBI complicated by AGI. (Registration No. ChiCTR2000032276).

Analysis of urine Alzheimer-associated neuronal thread protein level and related factors of middle-aged and elderly people in Mianyang / 四川精神卫生

ObjectiveTo investigate the Alzheimer-associated neurofilament protein （AD7c-NTP） in urine of middle-aged and elderly people and its correlation between common metabolites. MethodsA total of 1 150 middle-aged and elderly people who did their physical exmanination in the health examination center of the Sichuan Science City Hospital and the Third Hopital of Mianyang were recruited from March 2017 to March 2020. The level of urine AD7c-NTP were measured by enzyme-linked immunosorbent assay （ELISA）， and common metabolites in blood were measured by biochemical analyzer. Based on urine AD7c-NTP level ≤1.5 ng/mL， the objects was divided into normal group （n=956） and elevated group （n=194）. Thier demographic data and blood biochemical indicators were collected. ResultsThe urine AD7c-NTP level in middle-aged and elderly people was 0.60（0.30~1.20） ng/mL. The urine AD7c-NTP level was higher in women than that in men ［1.04（0.40~1.30） ng/mL vs. 0.84（0.30~1.00） ng/mL， Z=4.202， P˂0.01］. And the urine AD7c-NTP level was lower in the normal group than that in the elevated group ［0.50（0.30~0.90） ng/mL vs. 2.10（1.70~2.10） ng/mL， Z=22.035， P˂0.01］. The results of the univariate comparison showed that， the differences between the two groups in age （Z=6.545）， fasting glucose （Z=3.506）， blood uric acid （Z=2.574）， urea nitrogen （Z=2.891）， creatinine （Z=2.243）， total bilirubin （Z=3.936）， glutathione （Z=0.969）， total cholesterol （t=3.956） and low density lipoprotein （Z=-5.678） were were statistically significant （P˂0.05 or 0.01）. Spearman correlation analysis showed that， the urine AD7c-NTP level was positively correlated with age and the levels of urea nitrogen， glucose， total cholesterol and low density lipoprotein （r=0.177， 0.178， 0.171， 0.109， 0.149， P˂0.01）， and negatively correlated with the level of total bilirubin （r=-0.172， P˂0.01）. Conclusionthe urine AD7c-NTP level in middle-aged and elderly females was signifitcantly higher than in middle-aged and elderly males.The urine AD7c-NTP level of middle-aged and elderly people was positively correlated with age， urea nitrogen， glucose， total cholesterol and low density lipoprotein， and negatively correlated with total bilirubin.

Modified vertebral-carotid transposition treating stenosis at V1 segment of vertebral artery / 中国胸心血管外科临床杂志

@#Objective    To investigate the treatment of modified vertebral-carotid transposition (VCT) in patients with severe stenosis or occlusion at V1 segment of vertebral artery. Methods    A retrospective study of 13 patients with severe stenosis or occlusion at V1 segment of vertebral artery treated by modified VCT in our hospital from October 2016 to December 2018 was done. There were 10 males and 3 females with an average age of 70.5±7.1 years. Results    The operation was successful in this series of patients. The follow-up duration was 1-3 years. The stenosis degree of the V1 segment of the vertebral artery decreased from 86.8%±7.5% to 17.4%±14.5%. All patients achieved remission of symptoms after the surgery. Temporary peripheral nerve injury occurred in 6 patients. Four patients with neurological complications relieved during follow-up. The patency rate was 100.0% at postoperative 1 and 3 years. There was no perioperative death, stroke or re-intervention. Conclusion    Modified VCT can precisely restore the distal blood flow of patients with severe stenosis or occlusion at V1 segment of vertebral artery, and relieve their symptoms.

Application of Team Situational Simulation Education and Teaching Mode in Clinical Pharmacy Teaching / 中国药房

OBJECTIVE：To explore th e applicatio n of team situatio nal simulation education and teaching mode in clinical pharmacy teaching. METHODS ：A total of 60 clinical pharmacy interns were selected as the research objects ，and course disease was type 2 diabetes mellitus. Thirty interns were randomly selected as control group ，using traditional teaching mode ；other 30 interns were selected as trial group ，which carried out team situational simulation education and teaching mode. The teaching effects were evaluated by using the satisfaction of interns to the two modes ，the comprehensive score of graduation examination and the self-evaluation of learning effect. RESULTS ：Compared with traditional teaching mode ，team situational simulation education and teaching mode was conducive to stimulate the learning interest of interns ，improve their interpersonal communication ability ， cultivate teamwork spirit ，improve the awareness of humanistic care ，and cultivate the professional attitude of clinical pharmacists （P＜0.05）. Compared with control group ，the comprehensive score of trial group was dominantly increased （P＜0.001），and the scores of professional quality ，humanistic care and communication skills in the trial group were significantly higher than control group（P＜0.01）. In terms of self-evaluation of learning effect ，except for the pathogenesis of type 2 diabetes and the commonly used treatment regimens ，the self-evaluation scores of the other items in trial group were significantly higher than control group （P＜0.05 or P＜0.01）. CONCLUSIONS ：Team situational simulation education and teaching mode is superior to traditional teaching mode for clinical pharmacy teaching.

Combination of physician modified stent-graft fenestration and in-situ needle fenestration during thoracic endovascular aortic repair / 中华普通外科杂志

Objective:To evaluate the safety and feasibility of the in-situ needle fenestration combined with the in vitro physician modified fenestration technique to reconstruct supra-aortic branches during thoracic endovascular aortic repair (TEVAR) for aortic arch lesions requiring landing at Z0 and Z1.Methods:From Nov 2017 to Dec 2019, eighteen patients who underwent both the in-situ needle fenestration and the in vitro physician modified fenestration techniques to extend the proximal landing zone to Z0 and Z1 during TEVAR were included in our study.Results:Sixteen patients underwent in vitro physician modified fenestration ,two patients underwent in vitro physician modified fenestration to reconstruct both the left common carotid artery and the innominate artery. All eighteen patients received in-situ needle fenestration to preserve the left subclavian artery. Supra aortic branches were preserved in all patients (38/38, 100%). There was no Type Ⅰ endoleak. Type Ⅱ endoleak was found in four paitnets (4/18). Type Ⅲ endoleak occurred in one patient (1/18). Type Ⅳ endoleak in four patients (4/18). Type Ⅲ endoleak needed open aortic arch repair 6 months later. The median follow-up time was 12 months. One (1/18) died in 12 months and the other patients were doing well.Conclusions:The joint application of the in-situ needle fenestration and the in vitro physician modified fenestration to reconstruct supra-aortic branches during TEVAR for aortic arch pathologies requiring landing at Z0 and Z1 was satisfactory.

Endovascular treatment of traumatic thoracic aortic pseudoaneurysm / 中华普通外科杂志

Objective:To investigate the feasibility and safety of endovascular repair for traumatic thoracic aortic pseudoaneurysm.Methods:From Oct 2015 to Oct 2018, the clinical and followup data of 7 patients diagnosed as traumatic thoracic aortic pseudoaneurysm in Fuwai Hospital of Chinese Academy of Medical Sciences were analyzed retrospectively.Results:The patients average age was (51.2±11.0) years old. All patients underwent surgery in the hybrid operating room under general anesthesia. Two did thoracic endovascular aortic repair (TEVAR), three did TEVAR combined with chimney technique to reconstruct the left subclavian artery, and 1 had TEVAR combined with fenestration to reconstruct the left subclavian artery. One did TEVAR with left common carotid artery and left subclavian artery bypass. The mean operative time was (90.1±27.4) min, the mean postoperative hospital stay was (8.9±3.7) d, and the mean postoperative follow-up time was 42.4 months. All the patients received CTA reexamination of the aorta after 1, 6, 12 months and yearly thereafter. TypeⅠendoleak was found in one patient with chimney technique to reconstruct of left subclavian artery after operation. CT showed that the type Ⅰ endoleak disappeared 6 months after operation. There was no death, paraplegia or stroke during the perioperative period and follow-up period, and there was no aortic related reintervention.Conclusion:TEVAR is a safe and effective method for the treatment of traumatic pseudoaneurysm of thoracic aorta, and the early and mid-term results were satisfactory.

Effect of organizational management mode and regional medical resource allocation on the thrombolysis rate of stroke / 中华医院管理杂志

Objective:To explore the influence of organizational management mode and regional medical resource allocation on thrombolysis rate of stroke.Methods:A cross-sectional study was carried out in 61 thrombolytic units distributed at 16 administrative districts of Shanghai to collect information including the number of imaging equipment, neurologists and nurses, hospital organization and management mode, thrombolytic rate, etc. Using SPSS 19.0 statistical software, simple linear regression analysis and chi square test were used to analyze the correlation between related indexes and thrombolysis rate.Results:There was no linear correlation between imaging equipment, human resources and regional thrombolysis rate. The key factor to improve thrombolysis rate was the organizational management of stroke( OR=1.488, 95% CI=1.357-1.631, P<0.001). Conclusions:An effective hospital organization and management model, including the establishment of multi department cooperation, stroke emergency team, stroke green channel, can significantly improve the thrombolysis rate of stroke.

Diagnosis, management and research prospect of embolic strokes of undetermined source / 中华神经科杂志

Embolic strokes of undetermined source (ESUS) is the non-lacunar ischemic stroke without intracranial and extracranial arterial stenosis and overt cardiac embolism. This article reviews the etiology, classification, diagnosis and management of ESUS with related clinical trials and discusses its future research.

Analysis of detection results of serum markers of four infectious diseases in 34 080 patients / 公共卫生与预防医学

Objective To investigate the positive rate of serum biomarkers of 4 infectious diseases including HBV, HCV, HIV, and TP in patients in Jinniu District People’s Hosptial of Chengdu. Methods The results of serum markers of the 4 infectious diseases in 34 080 patients detected in the Laboratory Department of Chengdu Jinniu District People's Hospital were analyzed retrospectively. Results Of these 34 080 patients, the positive rate of HIV antibody (anti-HIV1/2) was 0.32%, the positive rate of hepatitis B surface antigen (HBsAg) was 11.34%, the positive rate of hepatitis C antibody (anti-HCV) was 0.42%, and the positive rate of Treponema pallidum antibody (anti-TP) was 3.08%. The positive rates of anti-HIV1/2, HBsAg and anti-TP in males were higher than those in females (PsAg, and anti-HCV had the highest positive rate in the 30-59 age group, while anti-TP had the highest positive rate in the group older than 60 years old. Conclusion The positive detection rate of serum markers in four infectious diseases in patients in Chengdu Jinniu District People's Hospital before surgery, childbirth and blood transfusion was higher, and the male positive rate was higher than that of the female.

Application of subclavian-carotid transposition to patients with proximal subclavian artery occlusion unable to be intervened / 中国胸心血管外科临床杂志

@#Objective    To investigate the efficacy of subclavian-carotid transposition (SCT) in treating patients with proximal subclavian artery occlusive diseases who were unable to be intervened, such as failure of intervention, congenital malformation and unwillingness to intervention. Methods    A retrospective review of 19 patients with proximal subclavian artery occlusion who underwent SCT from May 2016 to December 2018 was done. There were 14 males and 5 females with an average age of 54.05±17.34 years. The advantages and disadvantages of SCT in the treatment of proximal subclavian artery occlusion were analyzed. Results    All patients achieved immediate remission of symptoms after surgery. The stenosis degree of the proximal subclavian artery decreased from 100.0%±0.0% to 12.7%±10.1% after surgery. The average blood pressure difference between the unaffected side and the affected side decreased from 11.95±10.60 mm Hg to 0.89±5.75 mm Hg (P<0.01). Peripheral nerve injury occurred in 7 (36.8%) patients. The in-patient cost of subclavian artery occlusion patients who received subclavian artery interventional therapy in our hospital during the corresponding period was 3 392.12 yuan higher than that of the SCT group in average (if eliminating the patients whose cost was far from the average value, the cost of interventional therapy was 4 812.01 yuan higher than that of the SCT group in average). During 1-3 years' follow-up, 6 patients with neurological complication relieved. One- and three-year patency rates were 100.0%. No perioperative stroke, death or re-operation happened. Conclusion    SCT is an ideal process for the patients with subclavian artery occlusion who cannot accept subclavian artery interventional therapy.

Aortic arch repair by "HENDO" technology clusters / 中国胸心血管外科临床杂志

@#Aortic arch disease is one of the research hotspots and treatment difficulties in the field of aorta, including aortic arch aneurysms, pseudoaneurysm, ulcer, dissection and intramural hematoma. By summarizing the clinical data of the vascular surgery center of Fuwai Hospital of Chinese Academy of Medical Sciences in the past five years and combining with the latest theories of the cutting-edge development of aortic surgery, the authors proposed the "HENDO" concept, including using hybrid technique (H), endovascular repair (Endo) and open surgery (O), properly to treat aortic arch pathologies individually. The authors advocated the establishment of HENDO team and cooperation mechanism in large aortic centers, to eliminate technical shortcomings of a single surgeon by fully mastering the three main technology clusters by teamwork. Accordingly, the best treatment for each patient can be administrated and the survival rate and quality of life can be improved eventually.

Diagnostic value of mammographic calcification for ductal carcinoma in situ without palpable lumps / 中华内分泌外科杂志

Objective To explore the diagnostic value of calcification by full field digital mammography in cases without breast palpable lumps or nodules in ductal carcinoma in situ(DC1S).Methods Based on breast imaging-reporting and data system (BI-RADS)proposed by the American College of Radiology (ACR),the cases without palpable lumps or nodules,but with calcification (over Category 4a)found by full field digital mammography admitted from Oct.2014 to Oct.2016 were analyzed.They underwent excisional biopsy after three-dimensional guide wire positioning or three-dimensional vacuum rotary cutting.After being filmed again to make sure the resection was complete,the isolated specimen were sent to pathological examination.The pathology and calcification were analyzed and summarized.Results Among 126 cases,71 (56.3％)were breast adenosis,41 (32.5％) were DCIS,6(4.8％) were infiltrating ductal carcinoma (IDC),and 8 (6.3％)were other types.The detection rate of DCIS in younger group was higher.The calcifications in DCIS were mostly linear-branching,segmental calcification,and those in IDC were mostly pleomorphic,clustering or regional calcification.Conclusion Full field digital mammography has great diagnostic value for DCIS in cases with calcification but without palpable breast lumps or nodules.

Procedure selection of left subclavian artery revascularization in thoracic endovascular aortic repair / 中华外科杂志

In order to require ideal proximal landing zone and durable long-term outcome, it is necessary to reconstruct the left subclavian artery(LSA) blood supply as much as possible in thoracic aortic endovascular repair(TEVAR). With the advent and progress of diverse assisted techniques and devices, several procedures for the reconstruction of the left subclavian artery have been developed and widely utilized, including surgical LSA bypass or transposition, chimney technique, periscope technique, fenestration and branched stent-graft, which have expanded the proximal landing zone and widened the indication for original TEVAR. This article describes the advantages and pitfalls of each revascularization methods. Anatomies of aortic arch and LSA, urgency and types of pathologies, proficiency of the surgeon with different revascularization techniques and pre-operative risk score of patient should be evaluated in procedure selection. In clinical application, patient-specific evaluations and individualized considerations are essential for initialize the therapeutic strategy and decision making.

The association between baseline blood pressure, collaterals and outcome in acute ischemic stroke / 中华神经科杂志

Objective To explore the association between post-stroke blood pressure and collaterals and functional outcome in acute ischemic stroke (AIS) patients with large vessel occlusion/stenosis.Methods Consecutive AIS patients with large vessel occlusion/stenosis who had symptom onset within 6 hours in Huashan Hospital from July 2011 to October 2017 were retrospectively recruited and enrolled.Collaterals were analyzed through CT perfusion imaging.And all the patients were followed up for 3 months.And the association between baseline blood pressure,collaterals and outcomes was analyzed using multivariate linear and Logistic models.A total of 126 patients were enrolled for multivariate Logistic and linear regression analysis.Results Multivariate Logistic regression analysis revealed that with every increment of 10 mmHg (1 mmHg =0.133 kPa) systolic blood pressure,the odds of poor functional outcome increased by 20％ (unadjusted OR =1.20,95％ CI 1.02-1.42,P =0.03).After adjusting for age and sex,the odds increased by 21％ (OR =1.21,95％ CI 1.01-1.46,P =0.04).However,no statistical significance was shown after multivariate adjustment (OR--1.02,95％ CI 0.99-1.05,P =0.06).Multivariate linear regression analysis demonstrated that diastolic blood pressure (DBP) was negatively associated with the volume of hypoperfused and severely hypoperfused lesion.With every increment of 10 mmHg DBP,the volume of delay time (DT) ＞ 6 s lesion downsized by 7.6 ml (unstandardized coefficient -7.56,95％ CI-14.89--0.24,P =0.04).The DT ＞6 s/DT ＞3 s ratio was also decreased with the elevation of DBP (unstandardized coefficient-0.03,95 ％ CI-0.06--0.01,P =0.01).Conclusions For AIS patients,though higher DBP seems to be associated with better collaterals,it may still relate with poor functional outcome.

Expression of TK1 in benign and malignant tumors / 中华内分泌外科杂志

Objective To investigate the expression of thymidine kinase 1 (TK1) in benign and malignant tumors.Methods From Jan.2013 to May.2015,180 female patients with breast diseases aging 16 to 79 years,including 112 cases of breast cancer (breast cancer group),and 68 cases of breast fibroadenoma (breast fibroadenoma group) were collected.The mean age of the patients was 47 years,with a median age of 43 years.We collected all the patients' fasting venous blood,detected the level of TK1,compared their differences of expression levels between patients with fibroadenoma and breast cancer,and the differences in serum TK1 levels in patients with different pathological characteristics.Results The level of TK1 in breast cancer patients was significantly higher than that in patients with fibroadenoma,and the difference was statistically significant (P＜0.01).In breast cancer group,the tumor size was not correlated with TK1 expression of (P＞0.05).The level of serum TK1 in patients with advanced TNM stage was higher than that in patients with early TNM stage (P=0.038).The level of serum TK1 in patients with advanced lymph node stage was higher than that in early lymph node stage (P=0.048).The level of TK1 in M1 patients was higher than that in M0 patients and the difference had statistical significance (P=0.018).Conclusion TK1,as a new marker of cell proliferation index,can accurately reflect the proliferation of tumor cells in human body,which can be used as an important index to monitor the degree of tumor proliferation and identify benign and malignant tumors.

Influence of growing experience on non-heterosexual orientation among male college students in Nanjing / 中华预防医学杂志

Objective@#To analyze the influence of growing experience on non-heterosexual orientation among male college students.@*Methods@#From October to November in 2015, a total of 2 535 male students from 96 classes in 14 colleges/departments were recruited from two colleges that participated in the experimental work of AIDS prevention by cluster random sampling method. A structured questionnaire was administered in this study, including general demographic information, growing experience and Kinsey scale (to evaluate sexual orientation). Out of 2 500 questionnaires distributed in this study, 2 332 effective copies were withdrew, with the effective rate at 93.3%. Chi square test was used to analyze the differences of non-heterosexual orientation among the individuals with different social demographic characteristics. Multivariate logistic regression model was used to analyze the influencing factors of non-heterosexual orientation.@*Results@#Among the 2 332 individuals, the proportion of self-reported non-heterosexual was 6.2% (144).The proportions of male students who identify as non-heterosexual from freshman to junior year were 5.2%(63/1216),6.9%(65/941),11.7%(13/111) and 4.7%(3/64), respectively (χ2=9.06,P=0.029). Compared with the individuals of very good relationship with parents, those with bad relationship (OR=3.3, 95%CI: 1.7-6.5) and general relationship (OR=1.7, 95%CI: 1.0-2.9) with parents had a higher risk of non-heterosexual orientation, respectively. Those encountered sexual assault had a higher risk of non-heterosexual orientation than those without encountered sexual assault (OR=5.9, 95%CI: 3.2-10.9).@*Conclusions@#This study reported a high proportion of self-reported non-heterosexual among college male students in Nanjing, and highlighted the importance of targeting students with poor parental relationships and who subjected to sexually abused.

Evolution analysis and trend prediction of neuraminidase gene of influenza A/H1N1(09pdm) virus in China from 2009 to 2016 / 临床检验杂志

Objective To analyze the evolutionary characteristics and predict the variation trend of neuraminidase (NA) gene of influenza A/H1N1 (09pdm) virus in China from 2009 to 2016 in order to provide the basis of assessment for flu vaccines.Methods A total of 1 141 sequences of NA gene of influenza A/H1N1 (09pdm) virus were screened out from the Global Initiative on Sharing All Influenza Data and National Center for Biotechnology Information.The phylogenetic trees and the mutations of amino acids sequences were constructed and analyzed by biological softwares.The prediction for epidemic trend of influenza was analyzed by Bayesian skyline Plot.Results Compared with the sequence of reference strain,the homology of nucleic acid sequence of NA gene decreased year by year from 2009 to 2016.The phylogenetic analysis showed that NA gene clustered nearly on the identical phylogenetic tree in one year.The positive selection pressure site of NA strain was observed by different models in each year except 2012.The dynamics analysis showed that the popularity of influenza A/H1N1 virus may continue to increase to a peak in 2017.Conclusion The amino acid encoded by NA gene of influenza A/H1N1 virus is varying gradually,so the importance of surveillance for influenza virus should be reinforced for every year.

Action mechanism of apoptosis in the development of acute lung injury after severe acute pancreatitis / 解放军医学杂志

Objective To explore the role of apoptosis in the development of acute lung injury (ALI) after severe acute pancreatitis (SAP) and its mechanism via Notch/Hes signal transduction pathway in the pathologic process.Methods Fifty healthy male Sprague Dawley rats were randomly divided into,sham group (n=8) and model group (n=42).Tissue samples of model group were collected randomly at 3 (n=10),6 (n=10),12 (n=10) and 24h (n=12) after model establishment.Tissue collection of Sham group was conducted at 3h.Left lung wet/dry weight ratio (W/D) was calculated;Histological scores of pancreatic and lung tissues were assessed under microscope;myeloperoxidase (MPO) and tumor necrosis factor-α (TNF-α) of lung tissues were determined by enzymatic-chemical method and radioimmunoassay method respectively.Apoptosis of lung cells was evaluated by TUNEL assay followed by calculation of apoptosis index.Protein levels of Notch-l,Hes-1 and Hes-5 were also detected semi-quantitatively by Western blotting.Results The lung tissue W/D of model rats exhibited a gradual increment at the prior 12 hours,and the ratio was significantly higher than that of sham group at each time point (P＜0.01) while it reached the peak at 12h time point.Pancreatic and lung pathological scores of model groups were increased at all time points and significantly higher than sham group (P＜0.01).Lung pathological scores of model groups achieved a peak at 12h.Meanwhile,lung MPO and TNF-α of model groups showed the same increment trend at each time points.The apoptosis index (AI) of lung cells in model groups were higher than that in sham group (P＜0.01).Compared with sham group,the model groups showed lower protein expression levels of Notch-1,especially at 3,6 and 12h (P＜0.05).Notch-1 protein expression level of 12h group was lower than that of 3,6 and 24h groups (P＜0.01).Correlation analysis found that apoptosis of lung cells was significantly negatively related to histopathological scores (r=-0.834,P＜0.01).The Notch-1 protein expression showed positive correlation with AI (r=0.515,P=0.004),but significantly negative correlation with W/D (r=-0.593,P=0.001),histological scores (r=-0.306,P=0.002),MPO (r=-0.687,P＜0.01) and TNF-α (r=-0.574,P=0.001) in the lung tissue.Conclusions Lung cell apoptosis,which is negatively correlated to tissue injury levels,may play an important role in the development of ALI after SAP.Inhibitory state of Notch-1 signaling transduction can aggravate ALI in the pathologic process.