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Effects of Environmental Water Contamination in the Reproductive System of Mice

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Journal of Environmental Protection 2013年第7期4卷 121-125页

作者： paulo Augusto Amador Pereira Ana Julia Lichtenfels Luiz Alberto Amador Pereira Olaf Malm paulo hilario nascim.nto saldiva Alfesio Luis Ferreira Braga Chin An Lin Environmental Epidemiology Study Group Laboratory of Experimental Air PollutionUniversity of Sao Paulo Faculty of Medical SciencesSao PauloBrazil Environmental Risk and Exposure Assessment Group Collective Health Post-Graduation ProgramCatholic University of SantosSantosBrazil Program of Environmental Biophysics and Biotechnology Institute of Biophysics Carlos Chagas FilhoFederal University of Rio de JaneiroRio de JaneiroBrazil Medical Clinics Department University of Sao Paulo Faculty of Medical SciencesSao PauloBrazil

This study investigated the effects on the reproductive system of balb-c mice exposed to water collected from different sources near to a deactivated fertilizer waste depositary. Eighty male mice were separated in four groups: Group A (mineral water);Group B (water from the water treatment station);Group C (water from Cubatao city);Group D (water from the waste depositary region). They were exposed to water since they were weaned until they reached sexual maturity, then they were coupled with females in reproductive age and after this mating time they were sacrificed. The evaluated parameters were testicle weight, sperm analysis, pregnancy rate, sex ratio of the offspring and Sertoli cell count. The analysis of the water did not show presence of pollutants in the Group “A” and Group “C” water. Group “B” showed low level of cadmium, 3.58 ± 0.50 μg/L. Group “D” showed the presence of PAH’s and high levels of lead (221 ± 16 μg/L), cadmiun (12.6 ± 1.2 μg/L) and mercury (5.3 ± 1.1 μg/L). The tests of Levene and Kolmogorov-Smirnov were employed to verify the homogeneity of the variances and the tack to the normal curve, respectively. ANOVA was used for parametric tests and Kruskall-Wallis was used for non-parametric tests, while Turkey tests were employed for multiple comparisons. There were no differences between groups in testicle weight, sperm analysis, pregnancy rate and Sertoli cell count. There was a significant reduction in sex-ratio of the offspring in Group B. This alteration cannot be explained by the cadmium levels in Group B water. In the present study we cannot associate the exposition to contaminated water from the waste depositary and reproductive alterations.

关键词： Pollution Reproduction Metals Organic Pollutants Mice

Agave sisalana extract induces cell death in Aedes aegypti hemocytes increasing nitric oxide production

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Asian Pacific Journal of Tropical Biomedicine 2016年第5期6卷 396-399页

作者： Louise Helena Guimaraes de Oliveira Patricia Alexandria Paiva Silva de Sousa Fabrine Felipe hilario Gabriel Joventino nascim.nto Joao paulo Saraiva Morais Everaldo paulo de Medeiros Manoel Francisco de Sousa Fabiola da Cruz Nunes Biotechnology Center Federal University of Paraiba Embrapa Algodao Brazilian Agricultural Research Corporation

Objective: To investigate the effects of Agave sisalana(A. sisalana) extract on Aedes aegypti(Ae. aegypti) primary cell ***: Cells of Ae. aegypti were exposed to different concentrations of A. sisalana crude extract(0.18–6.00 mg/m L) for 24 h. Then, the cells were labeled with propidium iodide and subjected to fluorescence microscopy to verify cell viability. In addition, nitric oxide production was ***: Results showed that cells exposed to 6 mg/m L of the crude extract presented a greater percentage of death when compared to control(73.8% ± 9.6% vs. 34.6% ± 9.6%).Furthermore, there was an increase in the nitric oxide production in cells exposed to 6 mg/m L of A. sisalana crude extract [(0.81 ± 0.08) mmol/L] compared to control group[(0.41 ± 0.18) mmol/L].Conclusions: The results show that A. sisalana is cytotoxic to Ae. aegypti and may be used as raw material for new eco-friendly and inexpensive insecticides, since sisal industry discards the liquid waste for the extraction of plant fiber.

关键词： Sisal Cell culture Mosquito Insecticide

Fluctuating temperature modifies heat-mortality association around the globe

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The Innovation 2022年第2期3卷 65-72页

作者： Yao Wu Bo Wen Shanshan Li Antonio Gasparrini Shilu Tong Ala Overcenco Ales Urban Alexandra Schneider Alireza Entezari Ana Maria Vicedo-Cabrera Antonella Zanobetti Antonis Analitis Ariana Zeka Aurelio Tobias Barrak Alahmad Ben Armstrong Bertil Forsberg CarmenÍñiguez Caroline Ameling César De la Cruz Valencia ChristoferÅström Danny Houthuijs Do Van Dung Dominic Royé Ene Indermitte Eric Lavigne Fatemeh Mayvaneh Fiorella Acquaotta Francesca de’Donato Francesco Sera Gabriel Carrasco-Escobar Haidong Kan Hans Orru Ho Kim Iulian-Horia Holobaca Jan Kyselý Joana Madureira Joel Schwartz Klea Katsouyanni Magali Hurtado-Diaz Martina SRagettli Masahiro Hashizume Mathilde Pascal Micheline de Sousa Zanotti Stagliorio Coélho Noah Scovronick Paola Michelozzi Patrick Goodman paulo hilario nascim.nto saldiva Rosana Abrutzky Samuel Osorio Tran Ngoc Dang Valentina Colistro Veronika Huber Whanhee Lee Xerxes Seposo Yasushi Honda Michelle L.Bell Yuming Guo Department of Epidemiology and Preventive Medicine School of Public Health and Preventive MedicineMonash UniversityMelbourne 3004Australia Climate Air Quality Research UnitSchool of Public Health and Preventive MedicineMonash UniversityMelbourne 3004Australia Department of Public Health Environments and SocietyLondon School of Hygiene&Tropical MedicineLondon WC1E 7HTUK Centre for Statistical Methodology London School of Hygiene&Tropical MedicineLondon WC1E 7HTUK Centre on Climate Change&Planetary Health London School of Hygiene&Tropical MedicineLondon WC1E 7HTUK Shanghai Children’s Medical Centre Shanghai Jiao Tong UniversityShanghai 200025China School of Public Health Institute of Environment and Human HealthAnhui Medical UniversityHefei 230032China Center for Global Health Nanjing Medical UniversityNanjing 211166China School of Public Health and Social Work Queensland University of TechnologyBrisbane 4000Australia National Agency for Public Health of the Ministry of Health Labour and Social Protection of the Republic of MoldovaChisinau MD-2009Republic of Moldova Institute of Atmospheric Physics Czech Academy of SciencesPrague 14100Czech Republic Faculty of Environmental Sciences Czech University of Life SciencesPrague 16500Czech Republic Institute of Epidemiology Helmholtz Zentrum M€unchen-German Research Center for Environmental HealthNeuherberg 85747Germany Faculty of Geography and Environmental Sciences Hakim Sabzevari UniversitySabzevar ***Iran Institute of Social and Preventive Medicine University of BernBern 3012Switzerland Oeschger Center for Climate Change Research University of BernBern 3012Switzerland Department of Environmental Health Harvard T.H.Chan School of Public HealthHarvard UniversityBostonMA 02115USA Department of Hygiene Epidemiology and Medical StatisticsNational and Kapodistrian University of AthensAthens 11527Greece Institute for Environment Healthand SocietiesBrunel University LondonLondon UB83PNUK Institute of Environmental Assessment and

Studies have investigated the effects of heat and temperature variability(TV)on ***,few assessed whether TV modifies the heat-mortality *** on daily temperature and mortality in the warm season were collected from 717 locations across 36 *** was calculated as the standard deviation of the average of the same and previous days’minimum and maximum temperatures.

关键词： deviation modif heat

大气二氧化氮与每日总死亡率、心血管和呼吸系统疾病死亡率的短期关联:398个城市的多中心分析

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英国医学杂志中文版 2021年第8期24卷 435-442页

作者：孟夏刘聪(校) 陈仁杰郑湃(译) 阚海东(校) Francesco Sera Ana Vicedo-Cabrera Ai Milojevic Maria Guo Yuming Tong Shilu Micheline de Sousa Zanotti Stagliorio Coelh paulo hilario nascim.nto saldiva Eric Lavigne Patricia Matus Correa Nicolas Valdes Ortega Samuel Osorio Garcia Jan Kysely Ales Urban Hans Orru Marek Maasikmets Jouni J K Jaakkola Niilo Ryti Veronika Huber Alexandra Schneider Klea Katsouyanni Antonis Analitis Masahiro Hashizume Yasushi Honda Chris Fook Sheng Ng Baltazar Nunes João paulo Teixeira Iulian Horia Holobaca Simona Fratianni Ho Kim Aurelio Tobias Carmeníniguez Bertil Forsberg ChristoferÅström Martina S Ragettli Yue-Liang Leon Guo Shih-Chun Pan Shanshan Li Michelle L Bell Antonella Zanobetti Joel Schwartz Tangchun Wu Antonio Gasparrini 复旦大学公共卫生学院、公共卫生安全教育部重点实验室(复旦大学)、卫生部卫生技术评估重点实验室(复旦大学) 中国上海北京大学公共卫生学院复旦大学公共卫生学院不详

目的:采用统一的分析方案,评估全球多个国家/地区的二氧化氮(NO_(2))与总死亡率、心血管和呼吸系统疾病死亡率之间的短期关联。研究设计:采用两阶段的时间序列分析方法、过度离散的广义线性模型和多水平meta分析。研究地点:22个低到高... 详细信息

目的:采用统一的分析方案,评估全球多个国家/地区的二氧化氮(NO_(2))与总死亡率、心血管和呼吸系统疾病死亡率之间的短期关联。研究设计:采用两阶段的时间序列分析方法、过度离散的广义线性模型和多水平meta分析。研究地点:22个低到高收入国家/地区的398个城市。主要结局指标:1973—2018年逐日总死亡人数(6280万人)、心血管疾病死亡人数(1970万人)和呼吸系统疾病死亡人数(550万人)。结果:平均而言,NO_(2)浓度在滞后1天(前1天)每增加10μg/m^(3),会导致总死亡率、心血管和呼吸系统疾病死亡率分别增加0.46%(95%可信区间0.36%~0.57%)、0.37%(0.22%~0.51%)、0.47%(0.21%~0.72%)。在对共污染物(PM_(10)、PM_(2.5)、臭氧、二氧化硫和一氧化碳)进行调整后,这些关联仍然很稳定。所有3种死因的暴露-反应曲线几乎是线性的,没有明显的阈值。在398个城市中,可归因于高过假定零水平的NO_(2)浓度造成的死亡比例为1.23%(95%可信区间0.96%~1.51%)。结论:这项多中心研究提供了关于NO_(2)短期暴露与总死亡率、心血管和呼吸系统死亡风险之间的独立和线性关联的关键证据,说明通过加强NO_(2)的控制和监管限制标准,可获得人群水平的健康收益。

关键词：总死亡率 meta分析总死亡人数死亡风险广义线性模型二氧化氮高收入国家结局指标