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Paola Mosconi, Cinzia Colombo, Anna Roberto, Giulia Candiani, Maria Teresa Greco, Roberto Satolli, Carlo Castellani
Background: Health technology assessment and ethical issues have to be dealt with in deciding on national carrier screening for cystic fibrosis (CF)-the most frequent severe autosomal recessive disease in Caucasian populations and several stakeholders need to be involved. A citizens' jury is one way to ask citizens to deliberate on controversial topics in the interests of a society. The aims of this project were to gather opinions about CF carrier screening through citizens' jury deliberations and to match them with the findings of a large online consultation survey open to the general population, people with CF and families and health professionals...
March 19, 2018: European Journal of Public Health
Ji Feng Shao, Jixing Xia, Naoki Yamaji, Ren Fang Shen, Jian Feng Ma
Reducing Cd accumulation in the rice grain is an important issue for human health. The aim of this study is to manipulate both expression and tissue localization of OsHMA3, a tonoplast-localized Cd transporter in the roots by expressing it under the control of OsHMA2 promoter, which shows high expression in different organs including roots, nodes and shoots. In two independent transgenic lines, the expression of OsHMA3 was significantly enhanced in all organs compared with the non-transgenic rice. Furthermore, OsHMA3 protein was detected in the root pericycle cells and phloem region of both the diffuse vascular bundle and the enlarged vascular bundle of the nodes...
March 17, 2018: Journal of Experimental Botany
Ayako Casanova-Nakayama, Elena Wernicke von Siebenthal, Christian Kropf, Elisabeth Oldenberg, Helmut Segner
Genomic actions of estrogens in vertebrates are exerted via two intracellular estrogen receptor (ER) subtypes, ERα and ERβ, which show cell- and tissue-specific expression profiles. Mammalian immune cells express ERs and are responsive to estrogens. More recently, evidence became available that ERs are also present in the immune organs and cells of teleost fish, suggesting that the immunomodulatory function of estrogens has been conserved throughout vertebrate evolution. For a better understanding of the sensitivity and the responsiveness of the fish immune system to estrogens, more insight is needed on the abundance of ERs in the fish immune system, the cellular ratios of the ER subtypes, and their autoregulation by estrogens...
March 21, 2018: International Journal of Molecular Sciences
Hong Dong, Lei Zhou, Xinna Ge, Xin Guo, Jun Han, Hanchun Yang
BACKGROUND: Porcine reproductive and respiratory syndrome virus (PRRSV) is an important pathogen that causes economically huge losses to the pig industry worldwide. Current control of PRRSV infection remains inadequate although various means have been implemented. Thus, novel antiviral therapeutics combating PRRSV infection is essential to be considered. In the present study, the antiviral effect in vitro of 25-hydroxycholesterol (25HC) against PRRSV was investigated. METHODS: Cell viability assay was performed to examine the impact of 25HC on the cell viability...
March 21, 2018: Antiviral Therapy
Michelle Barbieri, Colleen Duncan, Albert L Harting, Kristy L Pabilonia, Thea C Johanos, Tracey Goldstein, Stacie J Robinson, Charles L Littnan
There is considerable temporal and spatial variability in the reproductive rates of Hawaiian monk seals (HMS; Neomonachus schauinslandi). Poor reproductive performance limits the recovery of this endangered species; however, causal factors are not fully understood. There is serologic evidence that HMS are exposed to pathogens that can impact reproductive success, but the prevalence of placental infections in HMS has not been evaluated. Placental tissues ( n=50), including tissues from 25% of known HMS births, were opportunistically collected in 2011 from six Northwestern Hawaiian Islands and three main Hawaiian Islands...
March 21, 2018: Journal of Wildlife Diseases
Alessandro Fiocchi, Lamia Dahdah, Vincenzo Fierro, Maria C Artesani, Rocco Valluzzi
PURPOSE OF REVIEW: The epidemiology of food allergy did inspire theories on the reasons for the recent surge of the disease. We offer here a reasoned review on the relationships between the trajectories of human development and the trend of the food allergy epidemics. RECENT FINDINGS: The exponential trend of the frequency of food allergy paralleled the explosive acceleration of the human development over the last few decades. Dietary factors have been indicated as responsible for these trends and targeted for potential preventive strategies...
March 20, 2018: Current Opinion in Allergy and Clinical Immunology
Shari I Lusskin, Sabrina J Khan, Carrie Ernst, Sally Habib, Madeleine E Fersh, Elizabeth S Albertini
Perinatal depression is associated with serious risks for the mother, baby, and family. When considering treating perinatal depression with a drug indicated for the treatment of depression, the major concerns are whether the drug increases the risks of teratogenicity, pregnancy complications, poor neonatal adaptation, or neurodevelopmental disorders. Although different studies have produced different results, the majority have not shown increases in risk for selective serotonin reuptake inhibitors, serotonin norepinephrine reuptake inhibitors, tricyclic antidepressants, or the noradrenergic/dopaminergic drug bupropion...
March 20, 2018: Clinical Obstetrics and Gynecology
Kelly J Chan, Divya Jolly, Jennifer J Liang, Jamie D Weinand, Joshua D Safer
OBJECTIVE: Existing transgender treatment guidelines suggest that for transmasculine treatment, there is a possible need for estrogen-lowering strategies adjunct to testosterone therapy. Further, guidelines advocate consideration of prophylactic female reproductive tissue surgeries for transgender men to avoid the possibility of estrogen-related health risks. Despite the paucity of objective data, some transgender men seek conversion inhibitors. We sought to determine estradiol levels in transgender men treated with testosterone therapy and the change in those levels with treatment, if any...
March 21, 2018: Endocrine Practice
Melanie Laura Lawrence, James R Smith, Jamie Andrew Davies
The mesonephros of mammals is a transient renal structure that contributes to various aspects of mammalian fetal development including the male reproductive system, hematopoietic stem cells and vascular endothelial cells. The mesonephros develops from the intermediate mesoderm and forms tubules that are segmented in a similar way to the nephrons of the permanent kidney (but lacking loops of Henle). Early studies have suggested that the mesonephros in marsupials and some placental mammals may perform an excretory function, but these studies have not directly shown active transport of organic anions and cations...
March 21, 2018: American Journal of Physiology. Renal Physiology
Tara A Pelletier, Robert D Denton
Reproductive isolation is the result of either the inability to produce viable and fertile offspring or the avoidance of mating altogether. While these mechanisms can evolve either over time via genetic drift or natural selection, the genetic result is usually a complex set of traits that are often linked. Explaining how reproductive isolation proceeds from the initiation of divergence to the complete prevention of mating is often a difficult task, as the underlying genes for traits associated with reproductive isolation can change via molecular evolution and subsequent protein coding alterations or through alterations of gene expression regulation...
January 2018: Molecular Ecology
Tai-Wan Yao, Jia Liu, Xue-Zhi Li, Lin Ma, Jia-Peng Wu, Xiao-Fang Xi, Yan Fu
OBJECTIVE: To assess the effect of electroacupuncture (EA) on chronic inflammatory response of Leydig cells in aged rats with low testosterone, so as to investigate its underlying mechanism of anti-male reproductive aging. METHODS: Twenty-four 20 months old SD rats were randomly divided into EA, medication and aged control groups ( n = 8 in each), and other 8 young SD rats (2 months of age) were used as the youth control group. EA (2 Hz/100 Hz, 1 mA) was applied to "Guanyuan"(CV 4) and bilate-ral "Shenshu"(BL 23) for 15 min, once daily for 8 weeks except the weekends...
March 25, 2018: Zhen Ci Yan Jiu, Acupuncture Research
Martha J Nelson-Flower, Elizabeth M Wiley, Tom P Flower, Amanda R Ridley
Delayed dispersal is a key step in the evolution of familial animal societies and cooperative breeding. However, no consensus has been reached on the ecological and social circumstances driving delayed dispersal. Here, we test predictions from the ecological constraints and benefits of philopatry hypotheses as well as the recently proposed dual benefits hypothesis to better understand the evolution of group-living and cooperative breeding. Furthermore, we consider how individual social circumstances within groups affect dispersal decisions...
March 20, 2018: Journal of Animal Ecology
Xue-Lian Liu, Rui-Ying Wu, Xiao-Feng Sun, Shun-Feng Cheng, Rui-Qian Zhang, Tian-Yu Zhang, Xi-Feng Zhang, Yong Zhao, Wei Shen, Lan Li
Zearalenone (ZEA), a metabolite of Fusarium fungi, is commonly found on moldy grains. Because it can competitively combine to estrogen receptor to disrupt estrogenic signaling, it has been reported to have serious adverse effects on animal reproduction systems. In order to explore the genotoxic effects of ZEA exposure on ovarian somatic cells, porcine granulosa cells were exposed to 10 μM and 30 μM ZEA for 24 or 72 h in vitro . The results showed that ZEA exposure for 24 h remarkably reduced the proliferation of porcine granulosa cells in a dose-dependent manner as determined by MTT analysis and flow cytometry...
2018: International Journal of Biological Sciences
Jared R Towers, Muriel J Hallé, Helena K Symonds, Gary J Sutton, Alexandra B Morton, Paul Spong, James P Borrowman, John K B Ford
Infanticide can be an extreme result of sexual conflict that drives selection in species in which it occurs. It is a rarely observed behaviour but some evidence for its occurrence in cetaceans exists in three species of dolphin. Here we describe observations of an adult male killer whale (Orcinus orca) and his post-reproductive mother killing a neonate belonging to an unrelated female from the same population in the North Pacific. This is the first account of infanticide reported in killer whales and the only case committed jointly by an adult male and his mother outside of humans...
March 20, 2018: Scientific Reports
Florent Masson, Sandra Calderon Copete, Fanny Schüpfer, Gonzalo Garcia-Arraez, Bruno Lemaitre
Endosymbiotic bacteria associated with eukaryotic hosts are omnipresent in nature, particularly in insects. Studying the bacterial side of host-symbiont interactions is, however, often limited by the unculturability and genetic intractability of the symbionts. Spiroplasma poulsonii is a maternally transmitted bacterial endosymbiont that is naturally associated with several Drosophila species. S. poulsonii strongly affects its host's physiology, for example by causing male killing or by protecting it against various parasites...
March 20, 2018: MBio
Reshma Ramachandran, Cd McDaniel
Parthenogenesis or "virgin birth" is embryonic development in unfertilized eggs. It is a routine means of reproduction in many invertebrates. However even though parthenogenesis occurs naturally in even more advanced vertebrates, like birds, it is mostly abortive in nature. In fact, multiple limiting factors, such as delayed and unorganized development as well as unfavorable conditions developing within the unfertilized egg upon incubation, are associated with termination of progressive development of parthenogenetic embryos...
March 20, 2018: Reproduction: the Official Journal of the Society for the Study of Fertility
Alexa A Lopez, Ryan Redner, Allison N Kurti, Diana R Keith, Andrea C Villanti, Cassandra A Stanton, Diann E Gaalema, Janice Y Bunn, Nathan J Doogan, Antonio Cepeda-Benito, Megan E Roberts, Stephen T Higgins
This study examined prevalence and correlates of using cigarettes, e-cigarettes, and other tobacco/nicotine delivery products in a U.S. national sample of women of reproductive age. Weighted data were obtained from women aged 15-44 years who were not currently pregnant in the first wave of the Population Assessment of Health and Tobacco (PATH, 2013-2014) study (N = 12,848). 20.1% of women were current cigarette smokers, 5.9% current e-cigarette users, 4.9% current cigar smokers, and 6.5% current hookah users...
March 17, 2018: Preventive Medicine
Brenda Ramos Robles, Ricardo A Valdez, Uriel Juárez Hernández, Brenda Marquina Castillo, Dulce Mata Espinosa, Jorge Barrios Payan, Rogelio Hernández Pando, Marta C Romano
INTRODUCTION: Tuberculosis (TB) is an infectious disease caused by Mycobacterium tuberculosis (Mtb) that mainly affects the lungs. Along the course of pulmonary TB there are remarkable changes in the production of cytokines that cause endocrine changes. So far, it is not known the physiological and histological changes in the male reproductive system during pulmonary TB. OBJECTIVE: To investigate whether pulmonary TB produces histological alterations of the BALB/c mice reproductive organs, as well as abnormalities in spermatogenesis, serum testosterone concentrations and expression of testicular cytokines...
March 2018: Tuberculosis
H Nathues, P Alarcon, J Rushton, R Jolie, K Fiebig, M Jimenez, V Geurts, C Nathues
PRRS is among the diseases with the highest economic impact in pig production worldwide. Different strategies have been developed and applied to combat PRRS at farm level. The broad variety of available intervention strategies makes it difficult to decide on the most cost-efficient strategy for a given farm situation, as it depends on many farm-individual factors like disease severity, prices or farm structure. Aim of this study was to create a simulation tool to estimate the cost-efficiency of different control strategies at individual farm level...
April 1, 2018: Preventive Veterinary Medicine
Mathew J Tomlinson, Asad Naeem
CASA has been used in reproductive medicine and pathology laboratories for over 25 years, yet the 'fertility industry' generally remains sceptical and has avoided automation, despite clear weaknesses in manual semen analysis. Early implementers had difficulty in validating CASA-Mot instruments against recommended manual methods (haemocytometer) due to the interference of seminal debris and non-sperm cells, which also affects the accuracy of grading motility. Both the inability to provide accurate sperm counts and a lack of consensus as to the value of sperm kinematic parameters appear to have continued to have a negative effect on CASA-Mot's reputation...
March 21, 2018: Reproduction, Fertility, and Development
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