Adolescent ; Adult ; Aged ; Cavernous Sinus ; injuries ; Female ; Humans ; Hypophysectomy ; adverse effects ; methods ; Intraoperative Complications ; Male ; Middle Aged ; Pituitary Neoplasms ; surgery ; Young Adult

Objective To compare the infectivity between laboratory adapted human inununodefi- ciency virus(HIV-1) and primary HIV-1 isolates for different mucosal epithelial cell lines. Methods Mu-cosal epithelial cells Caco-2, T-84, HeLa and lymphocyte MT-4 were infected with laboratory adapted HIV-1 SF33 and 2 primary HIV-1 isolates (02010561, 02010141). Culture supernatant and cells were collected respectively on 3-4 days interval after virus inoculation. The former was tested for HIV-1 antigen P24 level and viral load, and the latter was tested for total viral DNA and integrated viral DNA. Results All 3 virus strains could infect MT-4 cells and integrate into their genome. Only HIV-1 SF33 could infect Caco-2 cells but could not integrate into their genomic DNA. Both HIV-1 SF33 and 02010561 infected HeLa cells but only integration of HIV-1 SF33 was detected. All the 3 HIV-1 strains infected T-84 cells but only the integra-tion of HIV-1 SF33 and 02010141 was observed. Conclusion Although laboratory adapted and primary HIV-1 strains are able to infect human mucosal epithelial cell lines, transient or productive infection estab-lished in different mucosal epithelial cells is dependent on the character of cells and virus strains.

OBJECTIVETo find out the risk factors of drowning among children aged 1 and 14 in rural areas and to provide evidence for prevention and to reduce such incidents.

METHODS20 towns being selected as a cluster sampling study and screened out 133 drowning children aged 1-14 from Jan. 1, 2002 to Dec. 31, 2004 were screened. 1:2 matched case-control method was conducted. Data was analyzed with conditional univariate and multivariate logistic regression analysis.

RESULTSResults showed that falling into water took the leading type of drowning among children from the rural areas. The component of drowning displayed that boys was higher than girls. The majority occurred. during the warmer months, in summer and autumn. The places where drowning occurred was mainly at incidence site. Results from single and multiple factors analysis identified four major risk factors as: alcoholic drinking of his/her mother, lack of emergency treatment in the village, the child care-taker did not know what to do when drowning was occurring, the child usually played beside the water site. Factors preventing from drowning were: swimming training, the child caretaker keeping an eye on the child when he/she was swimming, the health condition of the caretaker and the communication with the parents.

CONCLUSIONThe risk factors of drowning among children aged 1-14 in rural areas were caused by multiple factors. Prevention and control program on drowning should be focusing on supervision, safety water, safety education and teaching swimming.

Adolescent ; Case-Control Studies ; Child ; Child, Preschool ; China ; epidemiology ; Drowning ; epidemiology ; prevention & control ; Female ; Humans ; Infant ; Male ; Risk Factors ; Rural Health

Background It has become a consensus about the necessity of topical administration of corticosteroid eye solutions after myopic laser-assisted in situ keratomileusis(LASIK).The glucocorticoid eye drops with good anti-inflammatory effect and less adverse effects is helpful for the repair of corneal epithelium following LASIK.Objective This study was to evaluate the clinical effects of 0.5％ loteprednol etabonate eye drops after LASIK.Methods A prospective randomized-controlled study was designed.One hundred and twelve myopia patients(224 eyes)who had received LASIK were included in this study and randomly divided into two groups,and 97 patients finished the follow-up,including 108 eyes of 54 patients in the 0.5％ ioteprednol etabonate eye drops treatment group and 86 eyes of 43 patients in the control group.0.5％ loteprednol etabonate eye drops or dexamethasone/tobramycin eye drops were administered topically to the treatment group and control group,respectively 4 times daily from postoperative day 1 through day 7 following LASIK in addition to regular basic treatment.The follow-up was performed 1 day,1 week and 1 month after LASIK.Subjective symptoms including eye pain,foreign body sensation and blurring were scored,and uncorrected visual acuity(UCVA),best corrected visual acuity(BCVA),intraocular pressure(IOP),central corneal thickness,corneal fluorescein staining and diffuse laminar keratitis(DLK)were evaluated and compared between the two groups 1 day,1 week,and 1 month after LASIK.This clinical trial was approved by the Ethic Commission of Zhongshan Ophthalmic Center,and written informed consent was obtained from each patient before the trial.Results No drug-related ocular and systemic adverse events were found in the treatment group throughout the follow-up duration.There was no significant difference in the subjective symptom score after 1 day,1 week and 1 month(P＞0.05).At 1 week post-LASIK,the corrected actual IOP was (16.27±3.31)mmHg in the treatment group and(17.49±4.48)mmHg in the control group,with a statistically significant difference between them(t =-2.113,P =0.036).However,there was no statistically significant difference in IOP between the treatment group(15.01±3.22)mmHg and the control group(15.30±4.17)mmHg at 1 month post-LASIK(t=-0.532,P=0.595).Mild diffuse lamellar keratitis developed in 7 eyes in the treatment group and 5 eyes in the control group without a significant difference on the first day after LASIK(x2 =0.153,P =0.926).The scores of corneal fluorescein staining were not statistically different between the two groups at 1 day,1 week and 1 month postoperative(Z=-0.566,P=0.571 ;Z=-0.689,P=0.491 ;Z=-1.628,P=0.103).Conclusions 0.5％ loteprednol etabonate eye drops could effectively inhibit postoperative inflammation and low the incidence of DLK.It can lessen the risk of IOP elevation in comparison with traditional steroid eye drops.

OBJECTIVETo study the characteristics of inheritance and epidemiology of gallstone disease in one pedigree.

METHODSA gallbladder disease-specific questionnaire was administered to all family members to ascertain histories of cholecystectomy and other medical conditions as well as anthropometrical data. Laboratory examination and ultrasonography were performed to determine the existence of gallstone.

RESULTSOne hundred and thirteen members of four generations in the index family were enrolled in the study. The prevalence of gallstone in females (34.48%) was higher than in males (23.64%) but with no significant difference. The prevalence in the second and third generations (52%) was higher than in others (20%) (P < 0.05). The heritability and standard error showed as 86.38% +/- 46.46% in I generations. Body mass index, histories of hypertension, hyperlipidemia and blood glucose were positively related to gallstone disease (P = 0.012, < 0.01, 0.017, 0.043, respectively) in this family. Gallstone disease was not significantly related to history of diabetes, daily alcohol or diet habit. Plasma cholesterol and triglyceride levels were not correlated with gallstone disease.

CONCLUSIONGallstone disease presented aggregation in the family and was in accordance with the characteristics of autosomal dominant inheritance. Being female, obesity, hypertension and history of hyperlipidemia might serve as risk factors to this family.

Adolescent ; Adult ; China ; epidemiology ; Family Health ; Female ; Gallstones ; epidemiology ; genetics ; Genetic Predisposition to Disease ; genetics ; Humans ; Hyperlipidemias ; complications ; Hypertension ; complications ; Male ; Middle Aged ; Obesity ; complications ; Pedigree ; Prevalence ; Risk Factors ; Sex Factors ; Surveys and Questionnaires

We investigated the effects of transient receptor potential M8 (TRPM8) channel on the proliferation and motility of androgen-independent prostate cancer PC-3 cells. After being permanently transfected with an empty vector and cDNA encoding the TRPM8 protein, cells were analysed for cell cycle distribution and motility using flow cytometry and scratch assay. Immunocytochemistry and Ca2+ imaging analysis revealed the overexpression of functional TRPM8 channel on both endoplasmic reticulum and plasma membrane of PC-3-TRPM8 cells. Cell cycle distribution and scratch assay analysis revealed that TRPM8 induced cell cycle arrest at the G0/G1 stage (P < 0.05) and facilitated the cell apoptosis induced by starvation (P < 0.05). Furthermore, TRPM8 inhibited the migration of PC-3-TRPM8 cells (P < 0.01) through the inactivation of focal-adhesion kinase. It appears that TRPM8 was not essential for the survival of PC-3 cells; however, the overexpression of TRPM8 had negative effects on the proliferation and migration of PC-3 cells. Thus, TRPM8 and its agonists may serve as important targets for the treatment of prostate cancer.
Adenocarcinoma ; genetics ; metabolism ; pathology ; Apoptosis ; Calcium ; metabolism ; Cell Cycle ; Cell Line, Tumor ; Cell Movement ; physiology ; Cell Proliferation ; Cell Transformation, Neoplastic ; Cytosol ; metabolism ; DNA-Binding Proteins ; genetics ; metabolism ; Epithelial Cells ; metabolism ; pathology ; Focal Adhesion Protein-Tyrosine Kinases ; antagonists & inhibitors ; Gene Expression Regulation, Neoplastic ; Humans ; Male ; Prostatic Neoplasms ; genetics ; metabolism ; pathology ; Starvation ; pathology ; TRPM Cation Channels ; genetics ; metabolism ; Transcription Factors ; genetics ; metabolism ; Transfection

OBJECTIVETo study the relationship between expression of caveolin-1 (Cav-1) and pERK1/2 and prognosis in non-small cell lung cancer (NSCLC).

METHODSCav-1 and pERK1/2 protein expression was assessed by immunohistochemistry in samples obtained from 160 patients with NSCLC and 20 patients with normal lung tissue.

RESULTSNormal bronchial and alveolar epithelial cells were positive for Cav-1 (membranous and cytoplasmic staining patterns). The expression rate of Cav-1 in NSCLC was 65.6% (105/160), which was significantly lower than that in normal lung tissue (P = 0.002). The Cav-1-positive rates in well to moderately differentiated tumors and poorly differentiated tumors were 56.8% (46/81) and 75.7% (53/70), respectively (P = 0.015). The expression of Cav-1 was much higher in patients with lymph node metastasis (77.8%, compared with 55.7% in lymph node-negative group, P = 0.003). The expression was also higher in stage III to IV than in stage I to II disease (75.4%, compared with 58.2%, P = 0.024). The overall survival of patients with Cav-1-positive tumors (71.4%, 37.1% and 17.1% 1-, 3- and 5-year survival, respectively) was lower than those with Cav-1-negative tumors (89.1%, 69.1% and 43.6% 1-, 3- and 5-year survival, respectively, P = 0.000). On the other hand, normal bronchial and alveolar epithelial cells were negative for pERK1/2. The expression rate of pERK1/2 in NSCLC was 61.3%, which was significantly higher than that in normal lung tissues (P = 0.000). The pERK1/2-positive rates in well to moderately differentiated tumors and poorly differentiated tumors was 53.1% and 71.4%, respectively (P = 0.021). The expression of pERK1/2 was much higher in patients with lymph node metastasis (80.6%, compared with 45.5% in lymph node-negative group, P = 0.000). The expression of pERK1/2 was also higher in stage III to IV than in stage I to II disease (76.8%, compared with 49.5%, P = 0.426). The overall survival of patients with pERK1/2-positive tumors (74.5%, 42.9% and 19.4% 1-, 3- and 5-year survival, respectively) was lower than those with pERK1/2-negative tumors (82.3%, 56.5% and 37.1% 1-, 3- and 5-year survival, respectively, P = 0.002). Cav-1 and pERK1/2 expression showed negative correlation (P = 0.000).

CONCLUSIONSCav-1 expression is lower in NSCLC than in normal lung tissue, whereas pERK1/2 expression is higher in NSCLC. Positive expression of Cav-1 and overexpression of pERK1/2 correlates with tumorigenesis and tumor progression of NSCLC. Cav-1 and pERK1/2 may serve as potential markers for predicting prognosis in NSCLC.

Carcinoma, Non-Small-Cell Lung ; diagnosis ; metabolism ; Caveolin 1 ; genetics ; metabolism ; Cytoplasm ; Humans ; Immunohistochemistry ; methods ; Lung Neoplasms ; diagnosis ; metabolism ; Lymph Nodes ; pathology ; Lymphatic Metastasis ; diagnosis ; pathology ; Mitogen-Activated Protein Kinase 1 ; genetics ; metabolism ; Mitogen-Activated Protein Kinase 3 ; genetics ; metabolism ; Neoplasm Staging ; classification ; Prognosis

Helminth infection can lead to organic,digestive and other tissue's pathological damage.Helminth diseases are harmful to human and animal health,and can cause reproductive failure,inhibits the growth and development of juvenile ani-mals,even lead to death of humans and animals in serious cases,and poses significant impacts on public health and causes eco-nomic losses to the animal husbandry.Currently,the prevention and control of helminth disease is largely dependent on inte-grated control measures including the use of drugs.Due to drug residues,drug resistance,and other issues,the development of new drugs and vaccines is imminent.So far,there is few ideal vaccines to control helminth diseases,which is due to that hel-minths have evolved mechanisms to evade host immune attacks during evolution,such as immune isolation,antigen variation, molecular simulation and so on.Therefore,this review describes the recent research advances in the immune evasion strategies of parasitic helminth,which aims to provide a reference for the development of new vaccines or drugs for better prevention and control of helminth diseases.

Objective To obtain the transcriptome database and differentially expressed genes of Tetrastigma hemsleyanum Diels et Gilg. by Illumina HiSeq 4000; To provide important molecular information for its molecular biology research. Methods Leaves and roots of Tetrastigma hemsleyanum Diels et Gilg. were chosen as experimental materials to conduct transcriptome sequencing. Then bioinformatics analysis of gene function annotations, metabolic pathways, and microsatellites was performed on the test data. Results 24.13 Gb Clean Data were assembled. Afer assembly steps, 84 433 of T. hemsleyanum Unigene were obtained, and then they were compared in the 7 gene database, and 47 766 annotated information of Unigene was obtained. There were 27 790 annotations in the GO database. The number of differentially expressed genes in the roots, stems and leaves was 4989, of which 3511 were up-regulated and 1478 were down-regulated. The COG database obtained 16 152 homologous sequences of Unigene, which were divided into 25 categories. In the KEGG database, there were 14 511 Unigene obtained the corresponding Ko number, which could be divided into 130 branches of signal metabolism, among which the number of Unigene in the ribosome synthesis pathway was the most, with 1042, and there was only 1 Unigene in the biosynthetic pathway of isoflavones. Conclusion A large number of transcripts of the transcriptome were obtained through splicing, assembling and functional annotation of Tetrastigma hemsleyanum Diels et Gilg., which can provide genomic database resources for molecular biology research of Tetrastigma hemsleyanum Diels et Gilg.

OBJECTIVETo investigate the effect of two different doses of letrozole in promoting ovulation in infertile women with polycystic ovarian syndrome (PCOS).

METHODSSeventy-six PCOS infertile women undergoing intrauterine insemination (IUI) or with anovulation were divided into two groups and received oral letrozole at the daily dose of 2.5 (n=36) or 5.0 mg (n=40) from the 3rd to the 7th day of the menstrual cycle. Three days after discontinuation of the medication (the 10th day of the menstrual cycle ), ultrasound scanning was performed to monitor the follicle development. When the diameter of the biggest follicle reached 14 mm, the presence of luteinizing hormone (LH) was monitored; when LH positivity was detected, blood samples were drawn to test follicle-stimulating hormone (FSH), LH, estradiol (E2) and testosterone (T) levels. Human chorionic gonadotropin (hCG, 10 000 U) was then injected to induce ovulation.

RESULTSThe ovulation rate, stimulation follicle days, diameter of the biggest follicle on the day of LH positivity and the thickness of endometrium were all similar between the two groups (P>0.05). But in women receiving 5.0 mg letrozole, both the number of mature follicles and pregnancy rate were significantly higher than those in women having the half dose (P<0.05). The levels of FSH, LH, E2, and T on the third day of menstruation and on the day of HCG injection were similar between the two groups (P<0.05).

CONCLUSIONLetrozole at the dose of 5.0 mg/day produces higher pregnancy rate and more mature follicles in fertile women with PCOS.

Adult ; Aromatase Inhibitors ; administration & dosage ; Female ; Fertility Agents, Female ; administration & dosage ; Humans ; Infertility, Female ; drug therapy ; etiology ; Insemination, Artificial ; Nitriles ; administration & dosage ; Ovulation Induction ; methods ; Polycystic Ovary Syndrome ; complications ; Triazoles ; administration & dosage