Objective To investigate the effects of circadian rhythm on interictal epileptiform discharges in patients with localization-related epilepsy.Methods Patients diagnosed with epilepsy in Sanbo Brain Hospital from January 2011 to January 2012 participated in this study.All patients were subjected to comprehensive evaluation,which included prolonged video-electroencephalogram (EEG),magnetic resonance imaging.Intracranial electrodes,PET,SPECT were also adopted if necessary.Circadian rhythm was divided into four stages:REM,NREM Ⅰ-Ⅱ,NREM Ⅲ-Ⅳ,and waking.The amount and distribution of ⅡD were compared by ANOVA.Results Significant differences in the amount and distribution of ⅡD were found among NREM Ⅰ-Ⅱ,NREM Ⅲ-Ⅳ,REM,and waking.However,no differences in the amount and distribution of ⅡD were noted between NREM Ⅰ-Ⅱ and NREM Ⅲ-Ⅳ as well as between REM and waking.Conclusion The amount of ⅡD is higher in NREM than in REM and waking;thus,NREM is more sensitive to diagnose epilepsy.The distribution of ⅡD in REM and waking is more restricted than that in NREM.

BACKGROUNDTo study the familial risk factors on lung cancer and the effect of genetic factors on lung cancer.

METHODSWith methods of genetic epidemiology, 370 probands of lung cancer and 370 spouses of the probands (control) were studied.

RESULTSThe risk of the probands' relatives was 1.85 times higher than that of their spouses' relatives (P < 0.01). Compared with the spouses' parents and female relatives, the OR of the probands' parents and female relatives was 2.66 and 2.64 (P < 0.01), respectively. Compard with the female controls' parents, the OR of female probands' parents was 2.27 (P < 0.01).

CONCLUSIONSThe susceptibility of the probands' relatives with lung cancer is higher than that of their spouses' relatives. The genetic factor is one of risk factors on lung cancer.

Background and objective It has been proven that the lung cancer mortality rate in Xuanwei County, China was among the highest in the country and has been associated with exposure to indoor smoky coal emissions that con-tain high levels of polycyclic aromatic hydrocarbons. Tis risk may be modified by variation in genetic polymorphisms and coal subtypes. Our objective was to use molecular epidemiological techniques to investigate the relationship among genetic polymorphisms, coal subtype and lung cancer risk in Xuanwei County. Methods On the basis of two population-based case-control studies in residents of Xuanwei County, China, questionnaires covering demographic information, smoking his-tory, family and personal medical history, and information on other variables were administered and buccal cells and sputum samples were collected separately from each subject enrolled to extract DNA. GST superfamily, AKR1C3 superfamily, OGG1 superfamily and other genotype were scanned by useing PCR method. ORs and 95%CIs were used to estimate the associa-tion between genotypes, coal subtypes and lung cancer risk factors by conditional Logistic regression using Statistical Analysis Sofware. Results Compared with subjects who using smokeless coal or wood, smoky coal use was statistically significantly associated with lung cancer risk (OR=7.7, 95%CI: 4.5-13.3). Tere was marked heterogeneity in risk estimates for specific sub-types of smoky coal. Estimates were highest for coal from the Laibin (OR=24.8), Longtan (OR=11.6) and Baoshan (OR=6.0) coal types, and lower for coal from other types; the risk within the same subtype of coal in male and female were similar. Te GSTM1-null genotype, the AKR1C3 (Ex1-70C>G), OGG1 (Ex6-315C>G) genotypes were closely associated with increased risk of lung cancer in Xuanwei County, and their odds ratios (95%CI) were 2.3 (1.3-4.2), 1.8 (1.0-3.5) and 1.9 (1.1-3.3), re-spectively. Compared to subjects who with GSTM1-positive and used less than 130 tons of smoky coal during their lifetime, higher risks were closely associated with GSTM1-null and heavier users (≥130 tons), with the OR was 4.9 (95%CI: 1.3-18.2) and 2.7 (95%CI: 1.0-7.4) for female and male, respectively. However, higher risks were only found within female for AKR1C3 (Ex1-70C>G) and OGG1 (Ex6-315C>G), with OR (95%CI)=12.9 (2.2-107.8) and 5.7 (1.1-34.2), respectively. Conclusion Lung cancer risks varied among coal subtypes; however, risks were similar between men and women exposed to the same type of coal. Te GSTM1-null genotype may enhance susceptibility to air pollution from indoor smoky coal combustion emissions. AKR1C3 and OGG1 genotypes were significantly associated with higher risk of lung cancer, especially among heavily exposed women.

Over half of the world's population is exposed to household air pollution from the burning of solid fuels at home. Household air pollution from solid fuel use is a leading risk factor for global disease and remains a major public health problem, especially in low- and mid-income countries. This is a particularly serious problem in China, where many people in rural areas still use coal for household heating and cooking. This review focuses on several decades of research carried out in Xuanwei County, Yunnan Province, where household coal use is a major source of household air pollution and where studies have linked household air pollution exposure to high rates of lung cancer. We conducted a series of case-control and cohort studies in Xuanwei to characterize the lung cancer risk in this population and the factors associated with it. We found lung cancer risk to vary substantially between different coal types, with a higher risk associated with smoky (i.e., bituminous) coal use compared to smokeless (i.e., anthracite) coal use. The installation of a chimney in homes resulted in a substantial reduction in lung cancer incidence and mortality. Overall, our research underscores the need among existing coal users to improve ventilation, use the least toxic fuel, and eventually move toward the use of cleaner fuels, such as gas and electricity.
Air Pollution, Indoor ; adverse effects ; China ; Coal ; adverse effects ; classification ; Cohort Studies ; Cooking ; Fossil Fuels ; Heating ; Humans ; Incidence ; Lung Neoplasms ; etiology ; mortality ; Risk Factors ; Smoke ; adverse effects ; Smoking

BACKGROUND: Lung cancer rates among women in rural Xuanwei and Fuyuan counties in eastern Yunnan province, China, are among the highest in the world, even though almost all women are non-smokers, and they tend to develop lung cancer at a younger age than other locations by roughly 5 yr-10 yr. This study investigated the survival of lung cancer patients among female never-smokers. METHODS: The female never-smokers, who had lived for many years in Xuanwei and Fuyuan counties, with lung cancer newly-diagnosed between July 2006 to March 2010, were followed up through the end of 2016. Age-standardized relative survival for all cases was calculated using local life table. The Kaplan-Meier method and Log-rank test were used to analyze the relationship between the variables and the prognosis in univariate analysis. Cox regression analysis was employed in the multivariate analysis. RESULTS: Among 1,250 total subjects, 1,075 died and the remaining 175 were censored during the follow-up, with a median follow-up period of 69 months (95%CI: 61.9-76.0). Overall, the mean age was (54.8 ±10.9) yr, with variable clinical stages: 3.5% of cases were stage I, 8.7% stage II, 20.7% stage III, 29.7% stage IV, and 37.4% stage unknown. The 645 patients(51.6%) with cyto-histological diagnosis contains 303 with Squamous cell carcinoma, and 231 with adenocarcinoma, 24 with small cell, 43 with other specified type and 39 with unknown histological type. Only 215 (17.2%) patients received surgery, 487 (39.0%) were treated without surgery, and 548 (43.8%) did not receive any specific anticancer therapy. The 5-year observed survival rate and age-standardized relative survival were 8.9% (95%CI: 7.0-10.6), and 10.1% (95%CI: 3.7-20.5) respectively, with a median survival of 13.2 months. The 5-year survival rates were 41.1% for stage I, 22.4% for stage II, 5.3% for stage III, 1.3% for stage IV, 11.2% for missing stage, 17.9% for adenocarcinoma, and 5.6% for squamous cell carcinoma respectively. Surgery significantly improved 5-year survival rate compared with non-surgery (34.8% vs 3.2%, P<0.001). The patients with non-treatment, aged 65 years and older, living in rural areas and farmer with low socioeconomic status had poorer survival, whereas the patients treated in provincial hospitals and chest X-ray screening had better survival. Cox multivariate analysis further showed that stage of tumor-node-metastasis (TNM), treatment status, hospital-level, and X-ray screening were factors correlated with survival. CONCLUSIONS Patients with lung cancer among female never-smokers in Xuanwei and Fuyuan experience poorer survival, because they are less likely to be diagnosed at early stage, as well as less likely to receive surgery and comprehensive treatment. Furthermore low socioeconomic status and poor health security are also responsible for the low survival.

OBJECTIVE To evaluate the mechanisms underlying the antidepressant effect of ZBH2012001,a novel serotonin and norepinephrine reuptake inhibitor(SNRI),in general and its ability to enhance monoaminergic transmission and suppress neuroinflammation in particular.METHODS① Male ICR mice were divided into vehicle(distilled water),duloxetine(DLX,10 or 20 mg·kg-1)and ZBH2012001(5,10 and 20 mg·kg-1)groups.One hour following ig administration,the antidepressant effect of ZBH2012001 was evaluated using the tail suspension test(TST)and forced swimming test(FST).② Radioligand binding assay was conducted to evaluate the affinity of ZBH2012001 for human serotonin transporters(hSERTs)and human norepinephrine transporters(hNETs).③ Mice were divided into vehicle(distilled water),DLX(10 or 20 mg·kg-1)and ZBH2012001(5,10 and 20 mg·kg-1)groups.One hour following drug administration,the 5-hydroxytryptophan(5-HTP)-induced head-twitch test or yohimbine-induced lethality test were performed to evaluate the effect of ZBH2012001 on the function of the 5-hydroxytryptamine(5-HT)and norepinephrine(NE)systems.④ Mice were divided into vehicle(distilled water+0.1%acetic acid),reserpine model(distilled water+reserpine 5 mg·kg-1),DLX(DLX 20 mg·kg-1+reserpine 5 mg·kg-1)and ZBH2012001(ZBH2012001 5,10 and 20 mg·kg-1+reserpine 5 mg·kg-1)groups.One hour following drug administration,reserpine was injected intraperitoneally to establish a monoamine-depletion model.The ptosis,akinesia,and hypothermia assays were performed to evaluate the effect of ZBH2012001 on the down-regulation of the reserpine-induced monoamine system.The TST in mice was used to evaluate the effect of ZBH2012001 on reserpine-induced depressive-like behavior while high-performance liquid chromatography with electrochemical detection(HPLC-ECD)was used to measure the levels of monoamines and their metabolites in the hippocampal tissue of reserpine-induced monoamine-depletion mice.ELISA was employed to detect the contents of tumor necrosis factor-alpha(TNF-α)and interleukin-6(IL-6)in the hippocampal tissue of reserpine-induced monoamine-depletion mice.Western blotting was used to assess the expressions of ionized calcium-binding adapter molecule-1(Iba-1)and nuclear factor-kappa B(NF-κB)in the hippocampal tissue of reserpine-induced monoamine-depletion mice.RESULTS ① Compared with the vehicle group,ZBH2012001(5,10 and 20 mg·kg-1)significantly reduced the immobility time both in the TST in mice(P<0.01,respectively),and ZBH2012001(20 mg·kg-1)and in the FST in mice(P<0.05).② ZBH2012001 competitively inhibited the binding of[3H]-imipramine to hSERTs and[3H]-nisoxetine to hNETs,with the half maximal inhibitory concentration(IC50)values of 84.95 and 712.90 nmol·L-1,respectively.③Com-pared with the vehicle group,ZBH2012001(10 and 20 mg·kg-1)significantly increased the head twitches induced by 5-HTP in mice(P<0.01,respectively)and increased the mortality rate in mice induced by yohimbine(P<0.05,P<0.01).④ In the reserpine-induced monoamine-depletion model in mice,compared with the vehicle group,mice in the reserpine model group exhibited ptosis,akinesia and hypothermia feature(P<0.01,respectively),significantly prolonged immobility time in the TST(P<0.01),significantly decreased the levels of NE,5-HT and dopamine(DA)(P<0.05,P<0.01),significantly increased the metabolic conversion rate of 5-HT and DA(P<0.01,respectively),significantly elevated levels of TNF-α and IL-6(P<0.05,respectively),and significantly increased expressions of Iba-1 and NF-κB(P<0.05,respectively)in the hippocampus.Compared with the model group,ZBH2012001(5,10 and 20 mg·kg-1)significantly antagonized ptosis and hypothermia behaviors induced by reserpine(P<0.01,respectively),ZBH2012001(10 and 20 mg·kg-1)significantly shortened the immobility time in reserpine-treated mice(P<0.05,P<0.01),ZBH2012001(20 mg·kg-1)significantly increased the levels of NE and 5-HT in the hippocampus of reserpine-treated mice(P<0.05,respectively),decreased the metabolic conversion rate of 5-HT(P<0.05),significantly reduced the contents of TNF-α and IL-6 in the hippocampus of reserpine-treated mice(P<0.05,respectively),ZBH2012001(5,10 and 20 mg·kg-1)significantly reduced the expression of Iba-1 protein in the hippocampus of reserpine-treated mice(P<0.01,respec-tively),and ZBH2012001(20 mg·kg-1)significantly reduced the expression of NF-κB protein in the hippocampus of reserpine-treated mice(P<0.05).CONCLUSION ZBH2012001 exerts its antidepres-sant effect through a dual mechanism involving monoamine enhancement and inflammation suppres-sion.