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Reproduction: the Official Journal of the Society for the Study of Fertility

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https://www.readbyqxmd.com/read/28528322/very-low-doses-of-heavy-oxygen-ion-radiation-induce-premature-ovarian-failure
#1
Birendra Mishra, Ryan Ripperdan, Laura Ortiz, Ulrike Luderer
Astronauts are exposed to charged particles during space travel, and charged particles are also used for cancer radiotherapy. Premature ovarian failure is a well-known side-effect of conventional, low linear energy transfer (LET) cancer radiotherapy, but little is known about the effects of high LET charged particles on the ovary. We hypothesized that lower LET (16.5 keV/µm) oxygen particles would be less damaging to the ovary than we previously found for iron (LET=179 keV/µm). Adult female mice were irradiated with 0, 5, 30, or 50 cGy oxygen ions or 50 cGy oxygen plus dietary supplementation with the antioxidant alpha lipoic acid (ALA)...
May 20, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28495852/high-throughput-mrna-sequencing-of-stromal-cells-from-endometriomas-and-endometrium
#2
Kadri Rekker, Merli Saare, Elo Eriste, Tõnis Tasa, Viktorija Kukuškina, Anne Mari Roost, Kristi Anderson, Külli Samuel, Helle Karro, Andres Salumets, Maire Peters
The aetiology of endometriosis is still unclear and to find mechanisms behind the disease development it is important to study each cell type from endometrium and ectopic lesions independently. The objective of this study was to uncover complete mRNA profiles in uncultured stromal cells from paired samples of endometriomas and eutopic endometrium. High-throughput mRNA sequencing revealed over 1,300 dysregulated genes in stromal cells from ectopic lesions, including several novel genes in the context of endometriosis...
May 11, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28495851/different-macrophages-equally-induce-emt-in-endometria-of-adenomyosis-and-normal
#3
Min An, Dong Li, Ming Yuan, Qiuju Li, Lu Zhang, Guo Yun Wang
Endometrial cells and microenvironment are two important factors in the pathogenesis of adenomyosis. Our previous study demonstrated that macrophages can induce eutopic epithelial cells of adenomyosis suffering from epithelial-mesenchymal transition (EMT). The aim of this study is to detect whether macrophages interacting with epithelial cells equally induce the EMT process in normal and eutopic endometria of healthy and adenomyotic patients; and macrophages parallelly polarize to M2. We investigated expressions of epithelial cadherin (E-cadherin), neural cadherin (N-cadherin), cytokeratin7 (CK7), vimentin, transforming growth factor-β1 (TGFB1), SMAD3 and pSMAD3 using Immunohistochemistry and Western Blot, then estimated genetic levels of CD163, IL10 and MMP12 using real-time quantitative polymerase chain reaction (RT-PCR) in macrophages...
May 11, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28468839/human-relaxins-rlnh1-rlnh2-their-receptor-rxfp1-and-fetoplacental-growth
#4
Kelly Yamasato, Pai-Jong Stacy Tsai, James Davis, Sandra Yamamoto, Gillian Bryant-Greenwood
Relaxin, a systemic and placental hormone, has potential roles in fetoplacental growth. Human placenta expresses two RLN genes, RLNH1 and RLNH2. Maternal obesity is common and is associated with abnormal fetal growth. Our aims were to relate systemic and cord blood RLNH2, placental RLNs and their receptor (RXFP1) with fetoplacental growth in context of maternal body mass index, and associations with insulin-like growth factor 2 (IGF2) and vascular endothelial growth factor A (VEGFA) in the same placentas. Systemic, cord blood and placental samples were collected prior to term labor, divided by prepregnancy body mass index: underweight/normal (N=25) and overweight/obese (N=44)...
May 3, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28450315/mirna-mrna-network-involved-in-folliculogenesis-interactome-systems-biology-approach
#5
Abolfazl Bahrami, Seyed Reza Miraie-Ashtiani, Mostafa Sadeghi, Ali Najafi
At later phases of folliculogenesis, the mammalian ovarian follicle contains layers of granulosa cells surrounding an antral cavity. To better understand the molecular basis of follicular growth and granulosa cell maturation, we study transcriptome profiling of granulosa cells from small (< 5 mm) and large (> 10 mm) bovine follicles using simultaneous method of Affymetrix microarrays (24,128 probe sets) and RNA-Seq data sets. In this study proposes a computational method to discover the functional miRNA-mRNA regulatory modules, that is, groups of miRNAs and their target mRNAs that are believed to take part cooperatively in post-transcriptional gene regulation under specific conditions...
April 27, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28432091/suppressive-effects-of-tnf%C3%AE-il6-and-macrophages-on-thecal-androgen-production
#6
Moafaq S Samir, Claire Glister, Dareen Mattar, Mhairi Laird, Philip G Knight
Pro-inflammatory cytokines secreted by macrophages and other cell-types are implicated as intra-ovarian factors affecting different aspects of ovarian function including follicle and corpus luteum 'turnover', steroidogenesis and angiogenesis. Here, we compared granulosal (GC) and thecal (TC) expression of TNF, IL6 and their receptors (TNFR1, TNFRSF1B, IL6R) during bovine antral follicle development; all five mRNA transcripts were detected in both GC and TC and statistically significant cell-type and follicle stage-related differences were evident...
April 21, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28420801/the-impact-of-laparoscopic-ovarian-drilling-on-amh-ovarian-reserve-a-meta-analysis
#7
Saad Aks Amer, Tarek T El Shamy, Cathryn James, Ali H Yosef, Ahmed Aboelfadle Mohamed
Laparoscopic ovarian drilling (LOD) has been widely utilised as an effective treatment in anovulatory women with polycystic ovarian syndrome (PCOS). However, there has been a growing concern over a possible damaging effect of this procedure on ovarian reserve. The objective of this study was to investigate the hypothesis that LOD compromises ovarian reserve as measured by post-operative changes in circulating anti-Müllerian hormone (AMH). This meta-analysis included all cohort studies as well as randomised controlled trials investigating serum AMH concentrations and other ovarian reserve markers in PCOS women undergoing LOD...
April 18, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28420800/setdb1-plays-an-essential-role-in-maintenance-of-gonocyte-survival-in-pigs
#8
Tian Tian Liu, Pengfei Zhang, Tian Jiao Li, Xiao Xu Chen, Zhen Shuo Zhu, Ying Hua Lyu, Xue Liang Li, Xiue Tian, Wen Xian Zeng
Histone methyltransferase SETDB1 suppresses gene expression and modulates heterochromatin formation through H3K9me2/3. Previous studies have revealed that SETDB1 catalyzes lysine 9 of histone H3 tri-methylation and plays essential roles in maintaining the survival of embryonic stem cells and spermatogonial stem cells in mice. However, the function of SETDB1 in porcine male germ cells remains unclear. The aim of the present study was to reveal the expression profile and function of SETDB1 in porcine germ cells...
April 18, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28420799/neonatal-hypothyroidism-does-not-increase-sertoli-cell-proliferation-in-inos-mice
#9
Nathalia de Lima E Martins Lara, Luiz Renato de França
Sertoli cell (SC) proliferation in mice occurs until two weeks after birth and is mainly regulated by FSH and thyroid hormones. Previous studies have shown that transient neonatal hypothyroidism in laboratory rodents is able to extend SC mitotic activity, leading ultimately to higher testis size and daily sperm production (DSP) in adult animals. Moreover, we have shown that due to higher SC proliferation and lower germ cell apoptosis, iNOS deficiency in mice also results in higher testis size and DSP. Although the cell size was smaller, the Leydig cells (LC) number per testis also significantly increased in iNOS(-/-) mice...
April 18, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28408706/embryo-culture-in-presence-of-oviductal-fluid-induces-dna-methylation-changes-in-bovine-blastocysts
#10
Antonio Daniel Barrera, Elina Vanesa García, Meriem Hamdi, Maria-Jesús Sánchez Calabuig, Angela Patricia Lopez-Cardona, Noelia Fonseca Balvís, Dimitrios Rizos, Alfonso Gutierrez-Adan
During the transit through the oviduct, the early embryo initiates an extensive DNA methylation reprogramming of its genome. Given that these epigenetic modifications are susceptible to environmental factors, components present in the oviductal milieu could affect the DNA methylation marks of the developing embryo. The aim of this study was to examine if culture of bovine embryos with oviductal fluid (OF) can induce DNA methylation changes at specific genomic regions in the resulting blastocysts. In vitro produced zygotes were cultured in medium with 3 mg/mL bovine serum albumin (BSA) or 1...
April 13, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28408705/time-lapse-imaging-of-cleavage-divisions-in-embryo-quality-assessment
#11
Robert Milewski, Anna Maria Ajduk
In vitro fertilization (IVF) is one of the most important procedures for treating infertility. As several embryos are usually produced in a single IVF cycle, it is crucial to select only the most viable ones for transfer to the patient. Morphokinetics, i.e. analysis of the dynamics of cleavage divisions and processes such as compaction and cavitation, has provided both biologists and clinicians with a new set of data regarding embryonic behaviour during preimplantation development and its association with embryo quality...
April 13, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28389520/oocyte-stem-cells-fact-or-fantasy
#12
Corrina J Horan, Suzannah Alice Williams
For many decades, the dogma prevailed that female mammals had a finite pool of oocytes at birth and this was gradually exhausted during a lifetime of reproductive function. However, in 2004, a new era began in the field of female oogenesis. A study was published that appeared to detect oocyte-stem cells capable of generating new eggs within mouse ovaries. This study was highly controversial and the years since this initial finding have produced extensive research and even more extensive debate into their possibility...
April 7, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28356501/anti-m%C3%A3-llerian-hormone-amh-and-fertility-management-in-agricultural-species
#13
Francesca Mossa, Fermin Jimenez-Krassel, Danielle M Scheetz, Miriam Weber-Nielsen, Alexander C O Evans, Jim Ireland
A reliable, easy to assess marker for fertility in agricultural species would be highly desirable and Anti-Müllerian Hormone (AMH) is a promising candidate. This review summarizes recent findings concerning AMH and its role in fertility management, mainly in cattle. It focuses on: 1) alterations in circulating AMH concentrations from birth to puberty and during estrous cycles; 2) correlation of circulating AMH concentrations with ovarian follicle numbers and ovarian reserve; 3) factors that impact circulating AMH concentrations; 4) use of AMH as a predictor of fertility...
March 29, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28356500/a-novel-testis-specific-protein-pramey-is-involved-in-spermatogenesis-in-cattle
#14
Wan-Sheng Liu, Yaqi Zhao, Chen Lu, Gang Ning, Yun Ma, Francisco Diaz, Michael O'Connor
PRAME is a cancer/testis antigen that is predominantly expressed in normal testicular tissues and a variety of tumors. The function of the PRAME family in spermatogenesis remains unknown. This study was designed to characterize the Y-linked PRAME (PRAMEY) protein during spermatogenesis in cattle. We found that PRAMEY is a novel male germ cell-specific, and a germinal granule-associated protein that is expressed in spermatogenic cells during spermatogenesis. The intact PRAMEY protein (58 kDa) was detected in different ages of testes but not in epididymal spermatozoa...
March 29, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28356499/relationship-of-dna-integrity-to-hrg-c633t-snp-and-art-outcome-in-infertile-couples
#15
Arumugam Kumaresan, Anders Johannisson, Sarah Nordqvist, Karin Kårehed, Helena Åkerud, Karin Lindgren, Jane Morrell
The status of sperm DNA fragmentation, protamine deficiency, free thiols and disulphide bonds in colloid-selected samples and its relationship to ART outcome or HRG C633T SNP is not known. The objective of this study was to determine these relationships in spermatozoa from men with male factor or unknown factor infertility (n=118) undergoing IVF or ICSI. Sperm DNA integrity was analyzed by flow cytometry using three fluorescent probes (Acridine Orange, Monobromobimane and Chromomycin A3). Principal component analysis was used to identify the parameters that most influenced fertility...
March 29, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28356498/in-vivo-targets-of-human-placental-micro-vesicles-vary-with-exposure-time-pregnancy
#16
Mancy Tong, Qi Chen, Joanna L James, Michelle Wise, Peter Stone, Lawrence W Chamley
Throughout human gestation, the placenta extrudes vast quantities of extracellular vesicles (EVs) of different sizes into the maternal circulation. While multinucleated macro-vesicles are known to become trapped in the maternal lungs and do not enter the peripheral circulation, the maternal organs and cells that smaller placental micro-vesicles interact with in vivo remains unknown. This study aimed to characterise the interaction between placental micro-vesicles and endothelial cells in vitro, and to elucidate which organs placental micro-vesicles localise to in vivo...
March 29, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28351933/cytosolic-dna-sensor-initiated-innate-immune-responses-in-mouse-ovarian-granulosa-cells
#17
Keqin Yan, Dingqing Feng, Jing Liang, Qing Wang, Lin Deng, Xiao Zhang, Bin Ling, Daishu Han
Viral infections of the ovary may perturb ovarian functions. However, the mechanisms underlying innate immune responses in the ovary are poorly understood. The present study demonstrates that cytosolic viral DNA sensor signaling initiates the innate immune response in mouse ovarian granulosa cells and affects endocrine function. The cytosolic DNA sensors p204 and cGAS and their common signaling adaptor stimulator of interferon (IFN) genes (STING) were constitutively expressed in granulosa cells. Transfection with VACV70, a synthetic vaccinia virus (VACV) DNA analogue, induced the expression of type I interferons (IFNA/B) and major inflammatory cytokines (TNFA and IL6) through IRF3 and NF-κB activation, respectively...
March 28, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28348070/syndecan-1-represses-cell-growth-and-fsh-responsiveness-in-human-granulosa-cells
#18
Simon Colombe, Laura Houllier, Emmanuelle Fleurot, Guénaëlle Levallet, Annie BenhaÏm, Pierre-Jacques Bonnamy, Jerome Levallet
Albeit devoid of intrinsic catalytic activity, the transmembrane heparan sulfate proteoglycan syndecan 1 plays critical roles in cellular processes such as extracellular matrix crosstalk, cytoskeletal organization, cell spreading, proliferation and differentiation. During the ovarian cycle, the expression of syndecan 1 in granulosa cells shows cyclic variation suggesting that it might fulfil specific roles in follicle development. To investigate its physiological roles on granulosa cells, syndecan 1 was overexpressed in human granulosa cell line KGN which retains features of granulosa cells from small antral follicle such as estradiol (E2) synthesis and low expression of functional FSH receptor (FSHR)...
March 27, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28314792/comparative-profiling-of-small-rnas-of-pig-seminal-plasma-and-ejaculated-and-epididymal-sperm
#19
Cai Chen, Han Wu, Dan Shen, Saisai Wang, Li Zhang, Xiaoyan Wang, Bo Gao, Tianwen Wu, Bichun Li, Kui Li, Chengyi Song
The similarities and differences of small RNAs in seminal plasma, epididymal sperm and ejaculated sperm remain largely undefined. We conducted a systematic comparative analysis of small RNA profiles in pig ejaculated sperm, epididymal sperm and seminal plasma and found that the diversity distribution of small RNA species was generally similar, whereas the abundance of small RNAs is dramatically different across the three libraries; miRNAs and small RNAs derived from rRNA, tRNA, small nuclear RNA, 7SK RNA, NRON RNA and cis-regulatory RNA were enriched in the three libraries, but piRNA was absent...
March 17, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28289071/disorganization-of-the-germ-cell-pool-leads-to-primary-ovarian-insufficiency
#20
Ikko Kawashima, Kazuhiro Kawamura
The mammalian ovary is an organ that controls female germ cell development, storing them and releasing mature oocytes for transporting to the oviduct. During the fetal stage, female germ cells change from a proliferative state to meiosis before forming follicles with the potential for growth of surrounding somatic cells. Understanding of molecular and physiological bases of germ cell development in the fetal ovary contributed not only to the elucidation of genetic disorders in primary ovarian insufficiency (POI), but also advancement of novel treatments for patients with POI...
March 13, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
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