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Assisted Reproductive Biology

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https://www.readbyqxmd.com/read/27878860/the-role-of-menstruation-in-women-s-objectification-a-questionnaire-study
#1
Herdís Sveinsdóttir
AIM: To investigate the concepts of objectification and self-objectification among young women in the context of attitudes towards menstruation, menstrual suppression, menstrual and menarche experiences, disorder eating and exercise habits and to detect predictors of objectification and self-objectification. BACKGROUND: The negative effects of objectification are well founded. Considering the central role menstruation plays in female biology, it comes as quite a surprise that so little attention is given to the subject in the research on objectification...
November 23, 2016: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/27862396/research-on-reproduction-is-essential-for-captive-breeding-of-endangered-carnivore-species
#2
K Jewgenow, B C Braun, M Dehnhard, J Zahmel, F Goeritz
Assisted reproductive technology (ART) has great potential for conservation, but its successful application in captive breeding programmes of endangered species is often compromised by limited background on species' biology. Although carnivore species benefit from knowledge obtained in domesticated species (dogs, cats and ferrets), the focus of research is different. In pet animals, research in reproduction has mainly been focused on ovarian function and contraception, although substantial progress has also been made in the field of in vitro embryo production, transgenic embryos and cloning to aid relevant medical models...
November 15, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27852683/potential-of-human-twin-embryos-generated-by-embryo-splitting-in-assisted-reproduction-and-research
#3
REVIEW
Laila Noli, Caroline Ogilvie, Yacoub Khalaf, Dusko Ilic
BACKGROUND: Embryo splitting or twinning has been widely used in veterinary medicine over 20 years to generate monozygotic twins with desirable genetic characteristics. The first human embryo splitting, reported in 1993, triggered fierce ethical debate on human embryo cloning. Since Dolly the sheep was born in 1997, the international community has acknowledged the complexity of the moral arguments related to this research and has expressed concerns about the potential for reproductive cloning in humans...
November 16, 2016: Human Reproduction Update
https://www.readbyqxmd.com/read/27843367/management-of-rheumatoid-arthritis-during-pregnancy-challenges-and-solutions
#4
REVIEW
Megan L Krause, Ashima Makol
Rheumatoid arthritis, a chronic inflammatory autoimmune disease with significant physical disability, affects women three times more frequently than men, often in their childbearing years. Parenthood decisions can be challenging, often affected by perceptions of their disease state, health care needs, and complex pharmacological treatments. Many women struggle to find adequate information to guide them on pregnancy planning, lactation, and early parenting in relation to their chronic condition. The expanded availability and choice of pharmacotherapies have supported optimal disease control prior to conception and enhanced physical capabilities for women to successfully overcome the challenges of raising children but require a detailed understanding of their risks and safety in the setting of pregnancy and breastfeeding...
2016: Open Access Rheumatology: Research and Reviews
https://www.readbyqxmd.com/read/27812397/ecology-and-management-of-kudzu-bug-hemiptera-plataspidae-in-southeastern-soybeans
#5
Sriyanka Lahiri, Dominic D Reisig
Kudzu bug, Megacopta cribraria Fabricius (Hemiptera: Plataspidae), is an invasive exotic pest of soybeans that has been present in the southeastern United States since 2009 and has been rapidly spreading through soybean-producing states. Their primary reproductive hosts in the United States are soybean, kudzu, pigeon pea, black eye pea, lima bean, pinto bean, wisteria, white sweet clover, white clover, red clover, alfalfa, perennial peanut, and American joint vetch. In soybeans, the kudzu bug feeds on vascular fluids at the stem, petiole, and nodes, causing yield losses of up to 60%...
January 2016: Journal of Integrated Pest Management
https://www.readbyqxmd.com/read/27807892/matrix-assisted-laser-desorption-ionization-imaging-mass-spectrometry-for-the-spatial-location-of-feline-oviductal-proteins
#6
M Apparicio, V G Santos, Dfo Rocha, C R Ferreira, B I Macente, G M Magalhães, A E Alves, T F Motheo, L C Padilha-Nakaghi, E A Pires-Buttler, G C Luvoni, M N Eberlin, Wrr Vicente
With the purpose of identifying factors involved in early stages of embryo development in the domestic cat, matrix-assisted laser desorption/ionization imaging mass spectrometry (MALDI-IMS) was used for the first time to describe the spatial localization of proteins in the oviducts of queens. Oviducts were obtained from two 2 and 4 years old cross-bred queens, divided into three segments, snap-frozen in liquid nitrogen and then stored at -80°C until use. Next, they were sectioned in a cryostat, fixed on ITO (indium tin oxide) conductive glass slides for MALDI-IMS and serial sections were collected on microscope slides for histology...
November 3, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27784933/gelatin-binding-proteins-in-reproductive-physiology
#7
REVIEW
Sanjay Kumar, Alex Tinson, Brendan Patrick Mulligan, Shreesh Ojha
In order to advance the assisted reproductive technologies used in animals and human beings, it is important to accumulate basic informations about underlying molecular mechanisms that shape the biological processes of reproduction. From within seminal plasma, proteins perform a wide variety of distinct functions that regulate major reproductive events such as fertilization. The ability of such proteins to bind and interact with different antagonistic ions and biomolecules such as polysaccharides, lipids, and other proteins present in the male and female reproductive tract define these capabilities...
December 2016: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/27774929/neuropsychological-functioning-in-preterm-born-twins-and-singletons-at-preschool-age
#8
Sarah Raz, Jamie C Piercy, Andrew M Heitzer, Brittany N Peters, Julie Bapp Newman, Angela K DeBastos, Noa Ofen, Beau Batton, Daniel G Batton
OBJECTIVES: A limited body of research is available on the relationships between multiplicity of birth and neuropsychological functioning in preterm children who were conceived in the age of assisted reproductive technology and served by the modern neonatal intensive care unit. Our chief objective was to evaluate whether, after adjustment for sociodemographic factors and perinatal complications, twin birth accounted for a unique portion of developmental outcome variance in children born at-risk in the surfactant era...
October 2016: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/27774234/in-vitro-gametogenesis-just-another-way-to-have-a-baby
#9
Sonia M Suter
Advances in science have made possible the derivation of reproductively viable gametes in vitro from mice. The research on human cells suggests that in vitro gametogenesis ("IVG") with reproductive potential may one day be possible with humans. This technology would allow same-sex couples to have children who are biologically related to both of them; allow single individuals to procreate without the genetic contribution of another individual; and facilitate "multiplex" parenting, where groups of more than two individuals procreate together, producing children who are the genetic progeny of them all...
April 2016: Journal of Law and the Biosciences
https://www.readbyqxmd.com/read/27770437/death-in-the-clinic-women-s-perceptions-and-experiences-of-discarding-supernumerary-ivf-embryos
#10
Sheryl de Lacey
Perspectives on the status of human embryos and whether they should be discarded differ globally. Some countries protect embryos in law while in other countries embryos 'die' or 'succumb' in assisted reproductive technology clinics on a daily basis. This study analyses interview data drawn from a larger qualitative study conducted in South Australia from 2004-2007. 21 women and 12 of 21 partners were interviewed about the decision they made to discard their embryos. The analysis reported here sought to examine the ways in which women constructed and experienced the decision to discard embryos...
October 22, 2016: Sociology of Health & Illness
https://www.readbyqxmd.com/read/27760894/development-of-reproductive-engineering-techniques-at-the-riken-bioresource-center
#11
Atsuo Ogura
Reproductive engineering techniques are essential for assisted reproduction of animals and generation of genetically modified animals. They may also provide invaluable research models for understanding the mechanisms involved in the developmental and reproductive processes. At the RIKEN BioResource Center (BRC), I have sought to develop new reproductive engineering techniques, especially those related to cryopreservation, microinsemination (sperm injection), nuclear transfer, and generation of new stem cell lines and animals, hoping that they will support the present and future projects at BRC...
October 19, 2016: Experimental Animals
https://www.readbyqxmd.com/read/27726374/examination-of-endogenous-peptides-in-medicago-truncatula-using-mass-spectrometry-imaging
#12
Erin Gemperline, Caitlin Keller, Dhileepkumar Jayaraman, Junko Maeda, Michael R Sussman, Jean-Michel Ané, Lingjun Li
Plant science is an important, rapidly developing area of study. Within plant science, one area of study that has grown tremendously with recent technological advances, such as mass spectrometry, is the field of plant-omics; however, plant peptidomics is relatively underdeveloped in comparison with proteomics and metabolomics. Endogenous plant peptides can act as signaling molecules and have been shown to affect cell division, development, nodulation, reproduction, symbiotic associations, and defense reactions...
October 11, 2016: Journal of Proteome Research
https://www.readbyqxmd.com/read/27706579/spermatogenesis-in-nesotriatoma-bruneri-usinger-1944-hemiptera-triatominae
#13
Y V Reis, K C C Alevi, F F F Moreira, M T V Azeredo-Oliveira
The Nesotriatoma genus consists of the species N. flavida N. bruneri and N. obscura, forming the Flavida complex. Variation in the size and morphological differences intraspecific of N. flavida led to the description of N. bruneri. Two years later, the same author proposed the synonymization of N. bruneri with N. flavida. Only in 1981 the specific status N. bruneri was recovered by means of morphological analysis of the genitalia. However, recently by genetic analysis, it was suggested that N. bruneri and N...
August 19, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/27667195/new-frontiers-in-human-assisted-reproduction%C3%A2-%C3%A2-%C3%A2-from-research-to-clinical-practice-several-considerations-review
#14
Salvatore Gizzo, Marco Noventa, Michela Quaranta, Roberta Venturella, Amerigo Vitagliano, Michele Gangemi, Donato D'Antona
In the era of very late, or advanced, motherhood, in which 'egg banks', 'social' egg‑freezing, egg donation and surrogacy represent a potential solution to a number of obstacles to human reproduction, what is the role of scientists and clinicians involved in assisted reproduction? In light of the apprehension that, in the future, through fertility treatment infertility may be passed on to the offspring, boundaries of medical vs. 'social' infertility are being created. Scientists and clinicians are joining forces in a synergistic effort to improve the effectiveness of infertility care by introducing novel therapeutic protocols with the intent of customising care and improving cost‑effectiveness, testing novel drugs and formulations, and searching for novel markers (for estimating biological age) and nomograms (to optimise the yield of a controlled ovarian hyperstimulation cycle)...
September 19, 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27646677/improving-icsi-a-review-from-the-spermatozoon-perspective
#15
Mara Simopoulou, Laertis Gkoles, Panagiotis Bakas, Polina Giannelou, Theodoros Kalampokas, Konstantinos Pantos, Michael Koutsilieris
: Intracytoplasmic sperm injection (ICSI) is the most frequently applied method for fertilization making the process of identifying the perfect spermatozoon fundamental. Herein we offer a critical and thorough presentation on the techniques reported regarding (i) handling and preparing semen samples, (ii) identifying and 'fishing' spermatozoa, and (iii) improving key factors, such as motility for a successful ICSI practice. These approaches are suggested to make the process easier and more effective especially in atypical and challenging circumstances...
December 2016: Systems Biology in Reproductive Medicine
https://www.readbyqxmd.com/read/27628237/female-infertility-and-serum-auto-antibodies-a-systematic-review
#16
Alban Deroux, Chantal Dumestre-Perard, Camille Dunand-Faure, Laurence Bouillet, Pascale Hoffmann
On average, 10 % of infertile couples have unexplained infertility. Auto-immune disease (systemic lupus erythematosus, anti-phospholipid syndrome) accounts for a part of these cases. In the last 20 years, aspecific auto-immunity, defined as positivity of auto-antibodies in blood sample without clinical or biological criteria for defined diseases, has been evoked in a subpopulation of infertile women. A systematic review was performed (PUBMED) using the MESH search terms "infertility" and "auto-immunity" or "reproductive technique" or "assisted reproduction" or "in vitro fertilization" and "auto-immunity...
September 14, 2016: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/27616901/effects-of-panax-ginseng-zearalenol-and-estradiol-on-sperm-function
#17
Sandra L Gray, Brett R Lackey, William R Boone
BACKGROUND: Estrogen signaling pathways are modulated by exogenous factors. Panax ginseng exerts multiple activities in biological systems and is classified as an adaptogen. Zearalenol is a potent mycoestrogen that may be present in herbs and crops arising from contamination or endophytic association. The goal of this study was to investigate the impact of P. ginseng, zearalenol and estradiol in tests on spermatozoal function. METHODS: The affinity of these compounds for estrogen receptor (ER)-alpha and beta (ERα and ERβ)-was assessed in receptor binding assays...
July 2016: Journal of Ginseng Research
https://www.readbyqxmd.com/read/27595157/inositol-and-human-reproduction-from-cellular-metabolism-to-clinical-use
#18
Ewa M Milewska, Adam Czyzyk, Blazej Meczekalski, Alessandro D Genazzani
Inositol is an organic compound of high biological importance that is widely distributed in nature. It belongs to the sugar family and is mainly represented by its two dominant stereoisomers: myo-inositol and D-chiro-inositol that are found in the organism in the physiological serum ratio 40:1. Inositol and its derivatives are important components of the structural phospholipids of the cell membranes and are precursors of the second messengers of many metabolic pathways. A high concentration of myoinositol is found in the follicular fluid and in semen...
September 5, 2016: Gynecological Endocrinology
https://www.readbyqxmd.com/read/27555525/cryopreservation-of-animal-oocytes-and-embryos-current-progress-and-future-prospects
#19
REVIEW
A A Mandawala, S C Harvey, T K Roy, K E Fowler
Cryopreservation describes techniques that permit freezing and subsequent warming of biological samples without loss of viability. The application of cryopreservation in assisted reproductive technology encompasses the freezing of gametes, embryos, and primordial germ cells. Whilst some protocols still rely on slow-freezing techniques, most now use vitrification, or ultra-rapid freezing, for both oocytes and embryos due to an associated decreased risk of damage caused by the lack of ice crystal formation, unlike in slow-freezing techniques...
October 15, 2016: Theriogenology
https://www.readbyqxmd.com/read/27555318/the-interaction-between-maternal-race-ethnicity-and%C3%A2-chronic-hypertension-on-preterm-birth
#20
Ashish Premkumar, Dana E Henry, Michelle Moghadassi, Sanae Nakagawa, Mary E Norton
BACKGROUND: In both the biomedical and public health literature, the risk for preterm birth has been linked to maternal racial/ethnic background, in particular African-American heritage. Despite this well-documented health disparity, the relationship of comorbid conditions, such as chronic hypertension, to maternal race/ethnicity and preterm birth has received relatively limited attention in the literature. OBJECTIVE: The objective of the study was to evaluate the interaction between chronic hypertension and maternal racial/ethnic background on preterm birth...
December 2016: American Journal of Obstetrics and Gynecology
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