An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Japan; analytical methods; birth rate; land use; mountains; water
Abstract:
... Non-structural measures, including relocation from a hazard zone, land development regulations, and evacuation, are important sediment-related countermeasures. Such measures depend on the behaviour of residents and are affected by socio-economic conditions. In Japan, the declining birth rate and ageing population are expected to result in rapid changes in socio-economic conditions; accordingly, th ...
birth rate; dynamic models; evolution; genetics; infection; influenza; mortality; public health; China
Abstract:
... Influenza is a worldwide public health problem which causes a serious economic and health burden. In order to provide a scientific basis for improving the prevention and control level of influenza, using dynamic model to evaluate the infection rates of influenza different subtypes from 2010 to 2019 in China. This article established SEIABR model based on influenza cases reported by China National ...
birth rate; capital; education; health services; models; pediatrics; pollution; public health; regression analysis; research; urbanization; China
Abstract:
... Pediatrics is an integral part of public health services. With the impact of the epidemic and the high-quality transformation of China’s development, the contradiction in the supply of pediatric public services has become more prominent. Scientific evaluation of the efficiency and quality of pediatric services, clarifying the redundancy of pediatric input resources and adjusting the construction o ...
... The efficiency of PGT-A have been studied in patients with previous IVF failure, recurrent pregnancy loss, idiopathic infertility and infertility due to other causes. More than 50% of all embryos produced in four experimental and one control groups were found to be aneuploid. Aneuploidies of autosomes 15 and 18 and of both sex chromosomes were the ones most frequently observed. Most aneuploidies w ...
... The seasonal cycle is an important feature of life, leading to the succession of different species and allowing them to share a common environment. Disruption in the seasonal cycle of many species has been reported, but the source of disruption varies from species to species. Lacustrine zooplankton species are widely acknowledged to respond to climate-induced, thermal and trophic variations. Here, ...
... The present study aimed to investigate the seasonal calving pattern of the swamp buffaloes and to test various estrus synchronization protocols and breeding treatments to improve the reproductive efficiency of the anestrous female buffaloes. In Study 1, we first investigated the breeding records of female buffaloes in the Phayao Animal Breeding and Research Center (PABRC) from year 2004 to 2013, a ...
... BT799 was Bacillus thuringiensis-genetic modified (GM) maize, and Sprague-Dawley (SD) rats were treated with different diet formulations containing BT799 maize grain (33% and 66%) or its non-transgenic Zhengdan 958 (ZD958, 33% and 66%). The feeding lasted for 10 (P)/14 (F1 and F2) weeks. The reproductive capacity and pathological responses were detected in each generation of rats fed with BT799 an ...
... Conium maculatum L. (C.M) is a poisonous plant species particularly for animals including mainly cattle. Even though it is known for its toxicity, clinically has significance due to sedative, antispasmodic and anti-inflammatory properties. For the first time present this study designed to investigate the therapeutic and fatal doses of C.M extract in gestated albino Wistar rats. To evaluate the the ...
... To evaluate the effect of gonadotropin-releasing hormone agonist (GnRHa) pretreatment time on clinical outcomes of patients who underwent endometrial preparation in HRT cycles and the molecular mechanism in frozen-thawed embryo transfer (FET) cycles, we retrospectively chose 1143 cycles and separated four groups. Endometrial tissues were collected from 44 patients who were cancelled on the day of ...
Chinese people; abortion (animals); alleles; anti-Mullerian hormone; birth rate; education; employment; female fertility; genotype; pregnancy rate; risk; China
Abstract:
... Substantial evidence now suggests an association between the FMR1 genotype and female fertility. The aim of this study was to determine whether a high normal FMR1 allele (35–54 repeats) affects in vitro fertilization (IVF) outcomes in Chinese women. A total of 120 women with 210 IVF cycles were retrospectively recruited in this study. The patients were divided into two groups based on the FMR1 rep ...
... In the year 2012 a total of seven individuals (one bull and six cows) of European bison (Bison bonasus) were introduced to a fenced 200 ha area in a forest district (Almindingen, Island Bornholm, Denmark) in the Baltic Sea. In 2017 the herd was supplemented by introduction of another bull. The animals all originated from a population in the Polish Bialowieza forest. Faecal samples were recovered w ...
... To optimize costs and reproductive success, rhesus macaques in biomedical primate research facilities are often peer-reared. Older, dependent infants are typically removed from their natal group to enhance female reproduction. The minimal husbandry age-norm of infant removal is ten months. These practices deviate from species-specific behavior and may reduce welfare, suggesting a trade-off between ...
... BACKGROUND: Severe iodine deficiency during gestation is associated with adverse pregnancy outcomes; however, the impact of mild-to-moderate iodine deficiency, though prevalent in pregnancy, remains unclear. METHODS: We extracted follow-up data for 7435 pregnant women from a national iodine deficiency disorders monitoring program from 2016 to 2018 and a mother–child cohort study in 2017 based on a ...
beef; birth rate; body condition; body weight; equations; herds; heterozygosity; milk production; odds ratio; pregnancy; regression analysis; reproductive performance; zebu
Abstract:
... The aim of this study was to evaluate over two reproductive years the factors that influence the probability of pregnancy in 185 multiparous beef cows with early-weaned calves. The effect of the following parameters were evaluated: the year; the individual and maternal heterozygosity; the percentage of Zebu in the genotype; the weight at calving, weaning and at the end of the breeding season; the ...
... ATP binding cassette transporters (ABCTs) is one of the largest gene superfamily comprising of integral membrane proteins that are ubiquitously found in all domains of life and implicated in ATP dependent active transport of ligands across the concentration gradient. We present here the identification and distribution of ABC proteins from seven plant species into four groups (Full, Half, Quarter a ...
... The objective of this study was to evaluate whether D-allulose has teratogenic effects on rats. A prenatal developmental toxicity test was conducted in SD rats in compliance with modified OECD guidelines test number 414, prenatal developmental toxicity study. Pregnant female rats received repeated doses of 1250, 2500, or 5000 mg/kg body weight D-allulose, or a vehicle control by gavage on GD 6–15. ...
air; air pollution; birth rate; blood serum; cohort studies; embryo transfer; environment; freeze-thaw cycles; hospitals; issues and policy; oocytes; pregnancy rate; regression analysis; risk; China
Abstract:
... The effects of ambient air pollutants on adverse pregnancy outcomes have been reported. However, studies about air pollutants exposure and pregnancy outcomes in patients undergoing IVF were limited and inconclusive. To date Shanghai has been the only city in China to implement a compulsory single embryo transfer policy for all patients undergoing their first embryo transfer procedure effective fro ...
abortion (animals); assisted reproductive technologies; birth rate; body mass index; dose response; meta-analysis; obesity; pregnancy rate; relative risk; systematic review
Abstract:
... This systematic review investigated dose–response relationship between maternal prepregnancy body mass index (BMI) and pregnancy outcomes following assisted reproductive technology, including clinical pregnancy rate (CPR), miscarriage rate (MR), and live birth rate (LBR). We searched four major databases and finally included 105 studies involving more than 271,632 pregnant women. We performed line ...
Bayesian theory; anti-Mullerian hormone; birth rate; blastocyst; blood serum; body mass index; follicular fluid; gas chromatography; hospitals; liquid chromatography; pollution; polychlorinated biphenyls; pregnancy rate; tandem mass spectrometry; France
Abstract:
... The impact of persistent organic pollutants (POPs) on reproductive health is still poorly understood, even though infertility management has high associated societal and economical costs. The aims of this study were to characterize the internal levels of polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs) and perfluoroalkylated substances (PFAS) in women undergoing in vitro fertiliz ...
birth rate; blastocyst; calcium; confocal microscopy; fluorescence; medical facilities; melatonin; membrane potential; mitochondria; mitochondrial membrane; oocytes; patients; reactive oxygen species
Abstract:
... To compare embryonic developmental competence and clinical outcomes of oocytes matured in vivo (IVF oocytes) and those matured in vitro (IVM oocytes) from the same IVM/IVF cycles, and to analyze the clinical efficiency of a melatonin-supplemented in vitro maturation system combined with a modified IVM/IVF protocol.We randomly recruited 22 patients undergoing IVM/IVF treatment protocol in our medic ...