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Biology of Reproduction

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https://www.readbyqxmd.com/read/28679164/maternal-placenta-modulates-a-deleterious-fetal-mutation
#1
Hongen Xu, Hubert Pausch, Heli Venhoranta, Karolina Rutkowska, Christine Wurmser, Beate Rieblinger, Tatiana Flisikowska, Dmitrij Frishman, Lech Zwierzchowski, Ruedi Fries, Magnus Andersson, Alexander Kind, Angelika Schnieke, Krzysztof Flisikowski
Intrauterine growth restriction (IUGR) is caused by dysregulation of placental metabolism. Paternally inherited IUGR mutations in the fetus influence maternal physiology via the placenta. However, it is not known whether the maternal placenta also affects the extent of IUGR in such fetuses. In cattle and other ruminants, maternal-fetal communication occurs primarily at the placentomes. We previously identified a 3' deletion in the non-coding MIMT1 gene that, when inherited from the sire, causes IUGR and late abortion in Ayshire cattle with variable levels of severity...
June 29, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28859289/a-new-chapter-for-biology-of-reproduction
#2
Wei Yan, Hugh Clarke
No abstract text is available yet for this article.
July 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28859288/the-long-and-short-of-translational-control-in-male-germ-cells
#3
Ana C Lima, Donald F Conrad
No abstract text is available yet for this article.
July 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28859287/analysis-of-cysteine-x-cysteine-motif-chemokine-ligands-9-10-and-11-their-receptor-cxcr3-and-their-possible-role-on-the-recruitment-of-immune-cells-at-the-maternal-conceptus-interface-in-pigs
#4
Jisoo Han, Min Jeong Gu, Inkyu Yoo, Yohan Choi, Hwanhee Jang, Minjeong Kim, Cheol-Heui Yun, Hakhyun Ka
Chemokines play critical roles in the establishment and maintenance of pregnancy in animals. Cysteine-X-cysteine motif chemokine ligand 9 (CXCL9), CXCL10, and CXCL11 are involved in recruiting immune cells by binding to their shared receptor, CXC receptor 3 (CXCR3), in a variety of tissues. This study examined the expression and regulation of chemokines CXCL9, CXCL10, and CXCL11, their receptor CXCR3, and their role at the maternal-conceptus interface in pigs. The endometrium expressed CXCL9, CXCL10, CXCL11, and CXCR3 stage specifically during pregnancy, with the greatest abundance on Day 15 of pregnancy...
July 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28859286/persistence-of-risk-factors-associated-with-maternal-cardiovascular-disease-following-aberrant-inflammation-in-rat-pregnancy
#5
Takafumi Ushida, Shannyn K Macdonald-Goodfellow, Allegra Quadri, M Yat Tse, Louise M Winn, Stephen C Pang, Michael A Adams, Tomomi Kotani, Fumitaka Kikkawa, Charles H Graham
Introduction: Pre-eclampsia is associated with increased risk of subsequent cardiovascular and metabolic disease in the affected mothers. While aberrant inflammation contributes to the pathophysiology of pre-eclampsia, it is unclear whether maternal inflammation contributes to the increased risk of disease. Here, we determined the effect of aberrant inflammation in pregnancy on cardiovascular and metabolic disease risk factors. Methods: Wistar rats were administered low doses of lipopolysaccharide (LPS) on gestational days (GD) 13...
July 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28859285/bovine-lineage-specification-revealed-by-single-cell-gene-expression-analysis-from-zygote-to-blastocyst
#6
Qingqing Wei, Liang Zhong, Shaopeng Zhang, Haiyuan Mu, Jinzhu Xiang, Liang Yue, Yunping Dai, Jianyong Han
Preimplantation embryos undergo zygotic genome activation and lineage specification resulting in three distinct cell types in the late blastocyst. The molecular mechanisms underlying this progress are largely unknown in bovines. Here, we sought to analyze an extensive set of regulators at the single-cell level to define the events involved in the development of the bovine blastocyst. Using a quantitative microfluidics approach in single cells, we analyzed mRNA levels of 96 genes known to function in early embryonic development and maintenance of stem cell pluripotency in parallel in 384 individual cells from bovine preimplantation embryos...
July 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28859284/understanding-avian-egg-cuticle-formation-in-the-oviduct-a-study-of-its-origin-and-deposition
#7
Peter W Wilson, Ceara S Suther, Maureen M Bain, Wiebke Icken, Anita Jones, Fiona Quinlan-Pluck, Victor Olori, Joël Gautron, Ian C Dunn
The cuticle is a unique invisible oviduct secretion that protects avian eggs from bacterial penetration through gas exchange pores. Despite its importance, experimental evidence is lacking for where, when, and what is responsible for its deposition. By using knowledge about the ovulatory cycle and oviposition, we have manipulated cuticle deposition to obtain evidence on these key points. Cuticle deposition was measured using staining and spectrophotometry. Experimental evidence supports the location of cuticle deposition to be the shell gland pouch (uterus), not the vagina, and the time of deposition to be within the final hour before oviposition...
July 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28859283/plasma-anti-m%C3%A3-llerian-hormone-profile-in-heifers-from-birth-through-puberty-and-relationship-with-puberty-onset
#8
Hossam El-Sheikh Ali, Go Kitahara, Toru Takahashi, Shogo Mido, Mohammed Sadawy, Ikuo Kobayashi, Koichiro Hemmi, Takeshi Osawa
The current study aimed to define the plasma profile of anti-Müllerian hormone (AMH) and follicle stimulating hormone (FSH) in heifers during postnatal life until achieving puberty, as defined by plasma progesterone (P4) profile, to demonstrate a relationship between AMH and age of puberty onset. Blood samples collected from 11 Japanese Black female calves within 1 week after birth (W 0) and then biweekly until the sixth week after puberty (WP 6) were assayed for AMH, FSH, and P4. The heifers were classified into two groups based on age of puberty onset: ≤42 weeks (early puberty group; EP, n = 4) and ≥44 weeks (late puberty group; LP, n = 7)...
July 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28859282/a-neurokinin-3-receptor-selective-agonist-accelerates-pulsatile-luteinizing-hormone-secretion-in-lactating-cattle
#9
Sho Nakamura, Yoshihiro Wakabayashi, Takashi Yamamura, Satoshi Ohkura, Shuichi Matsuyama
Pulsatile gonadotropin-releasing hormone (GnRH) secretion, which is indispensable for follicular development, is suppressed in lactating dairy and beef cattle. Neurokinin B (NKB) neurons in the arcuate nucleus of the hypothalamus are considered to play an essential role in generating the pulsatile mode of GnRH/luteinizing hormone (LH) secretion. The present study aimed to clarify the role of NKB-neurokinin 3 receptor (NK3R) signaling in the pulsatile pattern of GnRH/gonadotropin secretion in postpartum lactating cattle...
July 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28859281/a-delayed-sperm-penetration-of-cumulus-layers-by-disruption-of-acrosin-gene-in-rats
#10
Ayako Isotani, Takafumi Matsumura, Masaki Ogawa, Takahiro Tanaka, Kazuo Yamagata, Masahito Ikawa, Masaru Okabe
Acrosin, the trypsin-like serine protease in the sperm acrosome, was long viewed as a key enzyme required for zona pellucida penetration to fertilize eggs. However, gene disruption experiments in mice surprisingly showed that acrosin-disrupted males were fertile. Thus, the acrosin was considered to be not an essential enzyme for fertilization in mice. However, the involvement of acrosin in fertilization has been suggested in various species such as rat, bull, and pig. Moreover, it has been reported that serine protease (including acrosin) activity in mice is significantly weaker compared to other species, including rats...
July 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28859280/subfertility-in-bulls-carrying-a-nonsense-mutation-in-transmembrane-protein-95-is-due-to-failure-to-interact-with-the-oocyte-vestments
#11
Beatriz Fernandez-Fuertes, Ricardo Laguna-Barraza, Raul Fernandez-Gonzalez, Alfonso Gutierrez-Adan, Alfonso Blanco-Fernandez, Alan M O'Doherty, Mauro Di Fenza, Alan K Kelly, Sabine Kölle, Patrick Lonergan
In a recent genome-wide association study, 40 Fleckvieh bulls with exceptionally poor fertility were found to be homozygous for a nonsense mutation in the transmembrane protein 95 (TMEM95) encoding gene. Ejaculates from these individuals exhibited normal sperm concentration, morphology, viability, and motility. However, only 1.7% of inseminations resulted in pregnancies. The aim of this study was to examine the effect of this mutation in TMEM95 on bovine sperm function in vitro. Sperm from homozygous (mt/mt) males had lower in vitro fertility than sperm from wild-type (wt/wt) or heterozygous (wt/mt) bulls (P < 0...
July 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28859279/the-superovulated-environment-independent-of-embryo-vitrification-results-in-low-birthweight-in-a-mouse-model
#12
Rachel Weinerman, Teri Ord, Marisa S Bartolomei, Christos Coutifaris, Monica Mainigi
Epidemiological studies suggest that babies born following in vitro fertilization (IVF) and fresh embryo transfer are of lower birthweight than babies born following frozen embryo transfer, although the mechanism responsible for this phenotype is not known. We developed a novel mouse model that isolates the independent effects of embryo freezing and the superovulated environment, which cannot be performed in humans. We transferred blastocysts that had been vitrified and warmed, mixed with with fresh blastocysts, into individual pseudopregnant recipients produced by either natural mating or mating following injection with equine chorionic gonadotropin and human chorionic gonadotropin and hCG (superovulation)...
July 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28859278/the-transcriptome-of-the-endometrium-and-placenta-is-associated-with-pregnancy-development-but-not-lactation-status-in-dairy-cows
#13
Stephen G Moore, Matthew S McCabe, Jacob C Green, Emily M Newsom, Matthew C Lucy
Infertility in lactating dairy cows is explained partially by the metabolic state associated with high milk production. The hypothesis was that lactating and nonlactating cows would differ in endometrial and placental transcriptomes during early pregnancy (day 28 to 42) and this difference would explain the predisposition for lactating cows to have embryonic loss at that time. Cows were either milked or not milked after calving. Reproductive [endometrium (caruncular and intercaruncular) and placenta] and liver tissues were collected on day 28, 35, and 42 of pregnancy...
July 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28651359/altered-microrna-and-piwi-interacting-rna-profiles-in-cumulus-cells-from-patients-with-diminished-ovarian-reserve
#14
Dawei Chen, Zhiguo Zhang, Beili Chen, Dongmei Ji, Yan Hao, Ping Zhou, Zhaolian Wei, Yunxia Cao
Diminished ovarian reserve (DOR) is defined as decreased number or quality of follicles and oocytes in a woman at childbearing age. It is estimated that up to 10% of women in the general population may suffer from DOR. This study aims to comprehensively characterize microRNA (miRNA) and Piwi-interacting RNA (piRNA) expression profiles in cumulus cells of DOR patients. Cumulus cells were collected from 20 women of similar chronological age who received assisted reproductive technology treatment: 10 with DOR and 10 with normal ovarian reserve (NOR)...
July 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28637327/effect-of-simvastatin-on-baboon-endometriosis
#15
Hugh S Taylor, Myles Alderman Iii, Thomas M D'Hooghe, Asgerally T Fazleabas, Antoni J Duleba
Endometriosis, a common disorder affecting women of reproductive age, is characterized by ectopic growth of the endometrial tissues, altered steroid hormone response, and inflammation. Previous studies revealed that statins, selective inhibitors of the key step of mevalonate pathway, inhibit growth of endometrial stromal cells in vitro and reduce endometriotic lesions in murine models of endometriosis. This study evaluated the effects of simvastatin on the development of endometriosis in a baboon model of this disease...
July 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28637295/inhibition-of-polyamine-synthesis-causes-entry-of-the-mouse-blastocyst-into-embryonic-diapause
#16
Jane C Fenelon, Bruce D Murphy
Embryonic diapause is a common reproductive strategy amongst mammals, requiring an intimate cross-talk between the endometrium and the blastocyst. To date, the precise molecular signals responsible are unknown in the mouse or any other mammal. Previous studies in the mink implicate polyamines as major regulators of the control of diapause. In the mouse, inhibiting the rate-limiting enzyme of polyamine synthesis, ornithine decarboxylase (ODC1) during early pregnancy largely prevents implantation, but the fate of the nonimplanted embryos is unknown...
July 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28637242/yes-associated-protein-and-ww-containing-transcription-regulator-1-regulate-the-expression-of-sex-determining-genes-in-sertoli-cells-but-their-inactivation-does-not-cause-sex-reversal
#17
Adrien Levasseur, Marilène Paquet, Derek Boerboom, Alexandre Boyer
Yes-associated protein (YAP) and WW-containing transcription regulator 1 (WWTR1) are two functionally redundant transcriptional regulators that are downstream effectors of the Hippo signaling pathway, and that act as major regulators of cell growth and differentiation. To elucidate their role in Sertoli cells, primary Sertoli cell culture from Yapflox/flox; Wwtr1flox/flox animals were infected with a Cre recombinase-expressing adenovirus. Concomitant inactivation of Yap and Wwtr1 resulted in a decrease in the mRNA levels of the male sex differentiation genes Dhh, Dmrt1, Sox9, and Wt1, whereas those of genes involved in female differentiation (Wnt4, Rspo1, and Foxl2) were induced...
July 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28633489/effects-of-early-pregnancy-on-uterine-lymphocytes-and-endometrial-expression-of-immune-regulatory-molecules-in-dairy-heifers
#18
Sreelakshmi Vasudevan, Manasi M Kamat, Sadhat S Walusimbi, Joy L Pate, Troy L Ott
Natural killer (NK) cells are essential for establishment of human and rodent pregnancies. The function of these and other cytotoxic T cells (CTL) is controlled by stimulatory and inhibitory signaling. A role for cytotoxic cells during early pregnancy in cattle has not been described, but regulation of their function at the fetal-maternal interface is thought to be critical for conceptus survival. The hypothesis that the relative abundance of CTL and expression of inhibitory signaling molecules is increased by the conceptus during early pregnancy was tested...
July 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28651344/uterine-responses-to-early-pre-attachment-embryos-in-the-domestic-dog-and-comparisons-with-other-domestic-animal-species
#19
Felix R Graubner, Aykut Gram, Ewa Kautz, Stefan Bauersachs, Selim Aslan, Ali R Agaoglu, Alois Boos, Mariusz P Kowalewski
In the dog there is no luteolysis in the absence of pregnancy. Thus, this species lacks any anti-luteolytic endocrine signal as found in other species that modulate uterine function during the critical period of pregnancy establishment. Nevertheless, in the dog an embryo-maternal communication must occur in order to prevent rejection of embryos. Based on this hypothesis, we performed microarray analysis of canine uterine samples collected during pre-attachment phase (days 10-12) and in corresponding non-pregnant controls, in order to elucidate the embryo attachment signal...
June 23, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28605413/acute-bovine-viral-diarrhea-virus-infection-inhibits-expression-of-interferon-tau-stimulated-genes-in-bovine-endometrium
#20
Zhangrui Cheng, Latta Chauhan, Amy Teresa Barry, Ayimuguli Abudureyimu, Chike F Oguejiofor, Xing Chen, D Claire Wathes
Bovine viral diarrhea virus (BVDV) can evade host detection by downregulation of interferon signaling pathways. Infection of cows with noncytopathic (ncp) BVDV can cause early embryonic mortality. Upregulation of type I interferon stimulated genes (ISGs) by blastocyst-secreted interferon tau (IFNT) is a crucial component of the maternal recognition of pregnancy (MRP) in ruminants. This study investigated the potential of acute BVDV infection to disrupt MRP by modulating endometrial ISG expression. Endometrial cells from 10 BVDV-free cows were cultured and treated with 0 or 100 ng/ml IFNT for 24 h in the absence or presence of ncpBVDV infection to yield four treatment groups: CONT, ncpBVDV, IFNT, or ncpBVDV+IFNT...
June 1, 2017: Biology of Reproduction
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