Objective:To investigate the distribution and expression of the cyclooxygenase-2(COX-2)in lung tissues and the effect of its inhibition in bleomycin(BLM)-induced pulmonary fibrosis in rats.Methods:72 male SD rats were randomly divided into three groups:the control group,model group and celecoxib group.Immunohistochemical method was used to detect the distribution of COX-2 in the stage of acute pulmonary alveolitis.HE and Masson staining methods were used to evaculate the degree of alveolitis and pulmonary fibrosis.Results:(1)In early stage of pulmonary fibrosis except in the control group,COX-2 expression was found in small bronchial epithelial cells in the other two groups,especially the model group.(2)Compared with the control group,the other two groups had alveolitis(P

Aim To investigate the glycosidic constituents in the rhizomes of Alpinia officinarum Hance. Methods The isolation and purification of glycosides were done with column chromatography on macro porous resin, polyamides and Sephadex LH-20, whilst the structure elucidation was done by HRCI-MS and NMR (1D and 2D ) methods. Results A glycosidic ester identified as 4'-hydroxy-2'-methoxyphenol-β-D-{ 6-O-[ 4"-hydroxy-3", 5"-dimethoxy ( benzoate ) ] }-glucopyranoside ( I), along with a known compound n-butyl-β-D-fructopyranoside (II) , were isolated and characterized. Conclusion Ⅰ was found to be a new compound, named as alpinoside A, whilst Ⅱ was isolated from the genus Alpinia for the first time.

Objective To analyze the composition of and drug resistance in bacteria isolated from the lesions of patients with squamous cell carcinoma of the face and head.Methods Lesional tissue or discharges were obtained from 246 patients with squamous cell carcinoma of the face and head,and subjected to conventional bacterial culture.The isolated bacteria were identified by VITEK TWO automated microbiology system.Antimicrobial susceptibility testing was carried out by Kirby-bauer method.WHONET 5.3 software was utilized for statistical analysis.Results Totally,294 bacterial strains were isolated,including 168 Gram-negative bacteria (57.1％)and 126 Gram-positive bacteria(42.9％).The bacterial isolates were predominated by Staphylococcus aureus(21.4％),followed by Escherichia coli(20.4％),Staphylococcus epidermidis(18.4％),Klebsiellapneumoniae(15.4％)and Pseudomonas aeruginosa(9.5％).The prevalence was 40％,26.7％,42.9％ and 55.6％ respectively for extended spectrum β lactamases-producing E.coli and K.pneumoniae,methicillinresistant staphylococcus aureus(MRSA)and methicillin-resistant coagulase-negative S.epidermidis(MRCNS)respectively.P.aeruginosa,E.coli and K.pneumoniae were highly susceptible to imipenem and meropenem,and favorably sensitive to β-lactam and β-1actamase inhibitor combination.No resistance was observed for vancomycin,teicoplanin or linezolid in staphylococci.Conclusions The bacterial isolates from squamous cell carcinoma tissue on the head and neck are predominated by conditional pathogenic bacteria,and the proportion of Gram-negative bacteria is higher than that of Gram-positive bacteria.These isolates seem to be highly resistant to common antibiotics.

Objective To observe the occurrence of the complication in patients under going interventional therapy for cardiovascular diseases and analyze its causes.Methods The data records of 1015 patients with interventional therapy for cardiovascular diseases in our hospital from October,2003 to October,2004(aged between 7 and 85 years,585 males and 430 females) were analyzed.Among them,520 patients received percutaneous transluminal coronary angioplasty and stent implantation,160 underwent radiofrequency catheter ablation,201 with permanent cardiac pacing,121 received blocking for congenital heart disease,10 received intraartery stent implantation and 29 with other interventional therapy.Results The complication occurred in 7.58% of 1015 patients.A higher incidence of hypotension and aberrant reflex has been reported(2.66% of all,mortality rate 0.39%).Conclusions Interventional therapy for cardiovascular diseases is an effective treatment with some risk.Serious pre-operational appraisal,enriching the experience of the doctors and strict post-operational monitoring may reduce the occurrence of the complication.

OBJECTIVETo investigate amplification of zinc finger protein 217 (ZNF217) gene in ovarian serous cystadenocarcinoma and its clinical significance.

METHODSTwenty three specimens of ovarian carcinoma, 10 specimens of ovarian benign tumors and 7 specimens of normal ovaries and two ovarian cancer cell lines, SKOV3 and HO-8910 were examined by fluorescence in situ hybridization (FISH).

RESULTSThe amplification of ZNF217 was gained in 12 case of ovarian cancers, there was only 1 case in ovarian benign tumor and not amplication in normal ovary.

CONCLUSIONThe amplification of ZNF217 is associated with ovarian cancer. Oncogenes ZNF217 maybe play a role in cell differentiation and indicate poorer survival in patients with ovarian cancer.

Adult ; Aged ; Cell Differentiation ; Cell Line, Tumor ; Cystadenocarcinoma, Serous ; genetics ; pathology ; Cystadenoma, Serous ; genetics ; pathology ; Female ; Gene Amplification ; Humans ; In Situ Hybridization, Fluorescence ; Middle Aged ; Neoplasm Staging ; Ovarian Neoplasms ; genetics ; pathology ; Survival Analysis ; Trans-Activators ; genetics

OBJECTIVETo develop an identification method with significant specificity for patchouli oil.

METHODThe fingerprint was performed by gas chromatography with patchouli alcohol and pogostone as chemical markers.

RESULTThe similarity of 12 samples were higher than 0.9 and it can be used to identify the characteristics of patchouli oil.

CONCLUSIONThe GC fingerprint can be used for identification of patchouli oil.

Chromatography, Gas ; methods ; Lamiaceae ; chemistry ; Oils, Volatile ; analysis ; Plant Oils ; analysis ; Sesquiterpenes ; analysis

Objective:To analyze the clinical characteristics of adult Chinese patients with syncope.Methods:This is a cross-sectional survey study. Patients with preliminary diagnosis of syncope in the Emergency Department, Geriatrics and Cardiology Outpatient Department, or Syncope Unit of 37 hospitals in 19 provinces, autonomous regions and the Hong Kong Special Administrative Region from June 2018 to March 2021 were included in this study. The clinical features of these patients with syncope were analyzed.Results:A total of 4 950 consecutive patients with syncope were included in this study. The age was (56.3±16.8)years, and 2 604 cases (52.6%) were male. The most common type of syncope was neurally mediated syncope (2 345 (47.4%)), followed by cardiac syncope (1 085 (21.9%)), orthostatic hypotensive syncope (311 (6.3%)), and unexplained syncope accounted for nearly one third (1 155 (23.3%)). Predisposing syncope was more common in patients under 65 years of age(2 066(72.4%) vs. 786(27.6%),χ 2=136.5, P<0.001). Presyncope was more common in patients with neurally mediated syncope (1 972(79.0%) vs.1 908(73.9%), χ 2=17.756, P<0.001). Premonitory symptoms were more common in women(1 837(80.0%) vs. 1 863(73.0%),χ 2=33.432, P<0.001). Presyncope syndrome was more common in patients under 65 years of age (2 482(77.8%) vs. 1 218(73.4%),χ 2=17.523, P=0.001). Cyanosis was more common in ≥65 years old patients (271(18.2%) vs. 369(12.7%), χ 2=23.235, P<0.001). Urinary incontinence was more common in old patients aged ≥65 years(252(15.2%) vs. 345(10.8%), χ 2=19.313, P<0.001). Family history was more common in patients with cardiogenic syncope compared with other types of syncope (264(24.3%) vs. 754(19.5%), χ 2=11.899, P=0.001). Hypertention(1 480(30.5%)), coronary heart disease(1 057(21.4%)), atrial flutter and atrial fibrillation(359(7.2%)), second degree atrioventricular block(236(4.8%)) were common complications of syncope. The proportion of patients with coronary heart disease was significantly higher in cardiac syncope than that of other types of syncope(417(38.4%) vs. 640(16.6%), χ 2=241.376, P<0.001). Other common complications included cerebrovascular diseases (551 (11.1%)) and diabetes mellitus (632(12.8%)). Conclusions:Neurally mediated syncope is the most common syncope in adult Chinese population. Patients with predisposing conditions and premonitory conditions are younger. Presyncope is more common in women. The proportion of family history and coronary heart disease is higher in patients with cardiogenic syncope.

Obesity is increasingly prevalent globally, searching for therapeutic agents acting on adipose tissue is of great importance. Equisetin (EQST), a meroterpenoid isolated from a marine sponge-derived fungus, has been reported to display antibacterial and antiviral activities. Here, we revealed that EQST displayed anti-obesity effects acting on adipose tissue through inhibiting adipogenesis in vitro and attenuating HFD-induced obesity in mice, doing so without affecting food intake, blood pressure or heart rate. We demonstrated that EQST inhibited the enzyme activity of 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1), a therapeutic target of obesity in adipose tissue. Anti-obesity properties of EQST were all offset by applying excessive 11β-HSD1's substrates and 11β-HSD1 inhibition through knockdown in vitro or 11β-HSD1 knockout in vivo. In the 11β-HSD1 bypass model constructed by adding excess 11β-HSD1 products, EQST's anti-obesity effects disappeared. Furthermore, EQST directly bond to 11β-HSD1 protein and presented remarkable better intensity on 11β-HSD1 inhibition and better efficacy on anti-obesity than known 11β-HSD1 inhibitor. Therefore, EQST can be developed into anti-obesity candidate compound, and this study may provide more clues for developing higher effective 11β-HSD1 inhibitors.

Autologous ozonized blood transfusion(AOBT) is a therapy of re-transfusion of 100-200 mL of autologous blood after shaking and agitation with appropriate amount of oxygen-ozone in vitro. The oxidation of blood through the strong oxidation of ozone can enhance the non-specific immune response of the body, regulate the internal environment and promote health. This therapy has been increasingly applied in clinical practice, while no unified standard for the operation process in terms of ozone concentration, treatment frequency and treatment course had been established. This operation process of AOBT is primarily explored in order to standardize the operation process and ensure its safety and efficacy.