A natural disaster leading to accumulation of environmental contaminants may have substantial effects on the male reproductive system. Our aim was to compare and assess semen parameters in a normospermic population re...A natural disaster leading to accumulation of environmental contaminants may have substantial effects on the male reproductive system. Our aim was to compare and assess semen parameters in a normospermic population residing in the Southern Louisiana, USA area pre- and post-Hurricane Katrina. We retrospectively evaluated semen analyses data （n = 3452） of 1855 patients who attended the Tulane University Andrology/Fertility Clinic between 1999 and 2013. The study inclusion criteria were men whose semen analyses showed -〉 1.5 ml volume; _〉15 million ml1 sperm concentration; _〉39 million total sperm count; _〉40% motility; 〉30% morphology, with an abstinence interval of 2-7 days. After the inclusion criteria applied to the population, 367 normospermic patients were included in the study. Descriptive statistics and group-based analyses were performed to interpret the differences between the pre-Katrina （Group 1, 1999-2005） and the post-Katrina （Group 2, 2006-2013） populations. There were significant differences in motility, morphology, number of white blood cell, immature germ cell count, pH and presence of sperm agglutination, but surprisingly there were no significant differences in sperm count between the two populations. This long-term comparative analysis further documents that a major natural disaster with its accompanied environmental issues can influence certain semen oarameters （e.g.. motility and morphology） and, bv extension, fertility potential of the population of such areas.展开更多
Hurricane or Cyclone is an extreme environment and climate event that has both long-term and short-term impact,and produces environmental emergency displacement.This study has focused on two devastating cyclone disast...Hurricane or Cyclone is an extreme environment and climate event that has both long-term and short-term impact,and produces environmental emergency displacement.This study has focused on two devastating cyclone disaster events in the 21st century:Hurricane Katrina in 2005 in the USA and Cyclone Sidr in 2007 in Bangladesh.By using secondary-based research and comparative case study technique,this study focuses on different considerations of governmental policy approaches and responses such as encouraging displacement through resettlement or relocation planning,providing resilience-oriented practices or in-situ adaptation practices;discouraging migration by providing soft policies such as rapid response and distribution plan,insurance,tax policies,incentives etc.in Hurricane Katrina and Cyclone Sidr.By highlighting the above considerations,this study found that developing policy at national level as well as strategic and operational measures at state/local level,integrating rights,resilience and relocation issues with existing relevant policies and programs and active community-based preparedness programs can reduce human displacement from hurricane or cyclone disaster.展开更多
文摘A natural disaster leading to accumulation of environmental contaminants may have substantial effects on the male reproductive system. Our aim was to compare and assess semen parameters in a normospermic population residing in the Southern Louisiana, USA area pre- and post-Hurricane Katrina. We retrospectively evaluated semen analyses data （n = 3452） of 1855 patients who attended the Tulane University Andrology/Fertility Clinic between 1999 and 2013. The study inclusion criteria were men whose semen analyses showed -〉 1.5 ml volume; _〉15 million ml1 sperm concentration; _〉39 million total sperm count; _〉40% motility; 〉30% morphology, with an abstinence interval of 2-7 days. After the inclusion criteria applied to the population, 367 normospermic patients were included in the study. Descriptive statistics and group-based analyses were performed to interpret the differences between the pre-Katrina （Group 1, 1999-2005） and the post-Katrina （Group 2, 2006-2013） populations. There were significant differences in motility, morphology, number of white blood cell, immature germ cell count, pH and presence of sperm agglutination, but surprisingly there were no significant differences in sperm count between the two populations. This long-term comparative analysis further documents that a major natural disaster with its accompanied environmental issues can influence certain semen oarameters （e.g.. motility and morphology） and, bv extension, fertility potential of the population of such areas.
文摘Hurricane or Cyclone is an extreme environment and climate event that has both long-term and short-term impact,and produces environmental emergency displacement.This study has focused on two devastating cyclone disaster events in the 21st century:Hurricane Katrina in 2005 in the USA and Cyclone Sidr in 2007 in Bangladesh.By using secondary-based research and comparative case study technique,this study focuses on different considerations of governmental policy approaches and responses such as encouraging displacement through resettlement or relocation planning,providing resilience-oriented practices or in-situ adaptation practices;discouraging migration by providing soft policies such as rapid response and distribution plan,insurance,tax policies,incentives etc.in Hurricane Katrina and Cyclone Sidr.By highlighting the above considerations,this study found that developing policy at national level as well as strategic and operational measures at state/local level,integrating rights,resilience and relocation issues with existing relevant policies and programs and active community-based preparedness programs can reduce human displacement from hurricane or cyclone disaster.
