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https://www.readbyqxmd.com/read/27697446/coadministration-of-puerarin-low-dose-and-zinc-attenuates-bone-loss-and-suppresses-bone-marrow-adiposity-in-ovariectomized-rats
#1
Hao Liu, Wei Li, Xiyuan Ge, Shengnan Jia, Binbin Li
AIMS: Puerarin is a phytoestrogen that shows osteogenic effects. Meanwhile, zinc stimulates bone formation and inhibits bone resorption. The study aims to investigate the effects of coadministration of puerarin (low dose) and zinc on bone formation in ovariectomized rats. MATERIALS AND METHODS: Co-administration or use alone of puerarin (low dose) and/or zinc were gavaged in OVX rats. The estrogen-like effects were detected by the uterus weight, the histologic observation and the IGF-1 protein expression...
September 29, 2016: Life Sciences
https://www.readbyqxmd.com/read/27514375/transcriptomics-of-liver-and-muscle-in-holstein-cows-genetically-divergent-for-fertility-highlight-differences-in-nutrient-partitioning-and-inflammation-processes
#2
Bruce Moran, Sean B Cummins, Christopher J Creevey, Stephen T Butler
BACKGROUND: The transition between pregnancy and lactation is a major physiological change for dairy cows. Complex systemic and local processes involving regulation of energy balance, galactopoiesis, utilisation of body reserves, insulin resistance, resumption of oestrous cyclicity and involution of the uterus can affect animal productivity and hence farm profitability. Here we used an established Holstein dairy cow model of fertility that displayed genetic and phenotypic divergence in calving interval...
2016: BMC Genomics
https://www.readbyqxmd.com/read/26899592/effects-of-oriental-medicine-kyung-ok-ko-on-uterine-abnormality-in-hyperandrogenized-rats
#3
Min Jung Lee, Minhee Jang, Chun-Sik Bae, Kyoung-Sun Park, Hak-Jae Kim, Sanghyun Lee, Sang Won Lee, Young Ock Kim, Ik-Hyun Cho
A traditional herbal prescription, Kyung-Ok-Ko (KOK), composed of Rehmannia glutinosa Liboschitz var. purpurae, Lycium chinense, Aquillaria agallocha, Poria cocos, Panax ginseng, and honey, has been widely used in Oriental medicine as an invigorant or age-related diseases such as amnesia and stroke. However, the beneficial value of KOK on uterine dysfunction related to hyperandrogenism is largely unknown. We investigated the effect of KOK (2.0 g/kg/day, per os) on endometrial abnormalities in a dehydroepiandrosterone (DHEA, subcutaneous)-induced polycystic ovarian syndrome (PCOS) rat model...
February 22, 2016: Rejuvenation Research
https://www.readbyqxmd.com/read/26787031/effects-of-a-combination-therapy-of-sclerostin-antibody-iii-and-raloxifene-on-bone-formation-markers-in-ovariectomized-rats
#4
Hayam Ibrahim Gad Allam
OBJECTIVE: To determine the systemic effect of sclerostin monoclonal antibody (Scl-AbIII) administration on markers of bone formation and compare it with a combination of sclerostin antibody and raloxifene. STUDY DESIGN: Experimental study. PLACE AND DURATION OF STUDY: Medical College Animal House at King Khaled University Hospital, Riyadh, Saudi Arabia, from January to November 2014. METHODOLOGY: Forty-five female rats were divided into 5 groups equally; 1 control group and 4 groups of ovariectomized (OVX) rats: control OVX rats and OVX rats treated by Scl-AbIII, raloxifene or Scl-AbIII+raloxifene one month after ovariectomy, continued for 4 weeks...
January 2016: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/26745663/mechanisms-of-trophoblast-migration-endometrial-angiogenesis-in-preeclampsia-the-role-of-decorin
#5
Peeyush K Lala, Pinki Nandi
The objective of the present review is to synthesize the information on the cellular and molecular players responsible for maintaining a homeostatic balance between a naturally invasive human placenta and the maternal uterus in pregnancy; to review the roles of decorin (DCN) as a molecular player in this homeostasis; to list the common maladies associated with a break-down in this homeostasis, resulting from a hypo-invasive or hyper-invasive placenta, and their underlying mechanisms. We show that both the fetal components of the placenta, represented primarily by the extravillous trophoblast, and the maternal component represented primarily by the decidual tissue and the endometrial arterioles, participate actively in this balance...
March 3, 2016: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/26608222/autocrine-embryotropins-revisited-how-do-embryos-communicate-with-each-other-in-vitro-when-cultured-in-groups
#6
Eline Wydooghe, Leen Vandaele, Sonia Heras, Petra De Sutter, Dieter Deforce, Luc Peelman, Catharina De Schauwer, Ann Van Soom
In the absence of the maternal genital tract, preimplantation embryos can develop in vitro in culture medium where all communication with the oviduct or uterus is absent. In several mammalian species, it has been observed that embryos cultured in groups thrive better than those cultured singly. Here we argue that group-cultured embryos are able to promote their own development in vitro by the production of autocrine embryotropins that putatively serve as a communication tool. The concept of effective communication implies an origin, a signalling agent, and finally a recipient that is able to decode the message...
November 26, 2015: Biological Reviews of the Cambridge Philosophical Society
https://www.readbyqxmd.com/read/26559469/gene-expression-profiles-of-some-cytokines-growth-factors-receptors-and-enzymes-gm-csf-ifn%C3%AE-mmp-2-igf-ii-egf-tgf-%C3%AE-igf-iir-during-pregnancy-in-the-cat-uterus
#7
Ozgecan Korkmaz Agaoglu, Ali Reha Agaoglu, Aydin Guzeloglu, Selim Aslan, Ercan Kurar, Seyit Ali Kayis, Sabine Schäfer-Somi
Early pregnancy is one of the most critical periods of pregnancy, and many factors such as cytokines, enzymes, and members of the immune system have to cooperate in a balanced way. In the present study, the gene expression profiles of factors associated with pregnancy such as EGF, transforming growth factor beta, granulocyte-macrophage colony-stimulating factor, interferon gamma, insulin-like growth factor 2, insulin-like growth factor 2 receptor, and matrix metalloproteinase 2 were analyzed in uterine tissues of female cats...
March 1, 2016: Theriogenology
https://www.readbyqxmd.com/read/26417939/adam12-and-papp-a-candidate-regulators-of-trophoblast-invasion-and-first-trimester-markers-of-healthy-trophoblasts
#8
Julian K Christians, Alexander G Beristain
Proper placental development and function is crucial for a healthy pregnancy, and there has been substantial research to identify markers of placental dysfunction for the early detection of pregnancy complications. Low first-trimester levels of a disintegrin and metalloproteinase 12 (ADAM12) and pregnancy-associated plasma protein-A (PAPP-A) have been consistently associated with the subsequent development of preeclampsia and fetal growth restriction. These molecules are both metalloproteinases secreted by the placenta that cleave insulin-like growth factor binding proteins (IGFBPs), although ADAM12 also has numerous other substrates...
March 3, 2016: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/25892958/the-histone-h3k9-demethylase-kdm3b-is-required-for-somatic-growth-and-female-reproductive-function
#9
Zhaoliang Liu, Xian Chen, Suoling Zhou, Lan Liao, Rui Jiang, Jianming Xu
Kdm3b is a Jumonji C domain-containing protein that demethylates mono- and di-methylated lysine 9 of histone H3 (H3K9me1 and H3K9me2). Although the enzyme activity of Kdm3b is well characterized in vitro, its genetic and physiological function remains unknown. Herein, we generated Kdm3b knockout (Kdm3bKO) mice and observed restricted postnatal growth and female infertility in these mice. We found that Kdm3b ablation decreased IGFBP-3 expressed in the kidney by 53% and significantly reduced IGFBP-3 in the blood, which caused an accelerated degradation of IGF-1 and a 36% decrease in circulating IGF-1 concentration...
2015: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/25666754/developmental-exposure-to-bisphenol-a-alters-the-differentiation-and-functional-response-of-the-adult-rat-uterus-to-estrogen-treatment
#10
Lucía Vigezzi, Verónica L Bosquiazzo, Laura Kass, Jorge G Ramos, Mónica Muñoz-de-Toro, Enrique H Luque
We assessed the long-term effect of perinatal exposure to bisphenol A (BPA) on the rat uterus and the uterine response to estrogen (E2) replacement therapy. BPA (0.5 or 50μg/kg/day) was administered in the drinking water from gestational day 9 until weaning. We studied the uterus of female offspring on postnatal day (PND) 90 and 360, and the uterine E2 response on PND460 (PND460-E2). On PND90, BPA-exposed rats showed altered glandular proliferation and α-actin expression. On PND360, BPA exposure increased the incidence of abnormalities in the luminal and glandular epithelium...
April 2015: Reproductive Toxicology
https://www.readbyqxmd.com/read/25486203/expression-regulation-and-function-of-egr1-during-implantation-and-decidualization-in-mice
#11
Bin Guo, Xue-Chao Tian, Dang-Dang Li, Zhan-Qing Yang, Hang Cao, Qiao-Ling Zhang, Ju-Xiong Liu, Zhan-Peng Yue
Abstract Early growth response gene 1 (Egr1), a zinc finger transcriptional factor, plays an important role in regulating cell proliferation, differentiation and angiogenesis. Current data have shown that Egr1 is involved in follicular development, ovulation, luteinization and placental angiogenesis. However, the expression, regulation and function of Egr1 in mouse uterus during embryo implantation and decidualization are poorly understood. Here we showed that Egr1 was strongly expressed in the subluminal stroma surrounding the implanting blastocyst on day 5 of pregnancy...
2014: Cell Cycle
https://www.readbyqxmd.com/read/25476824/serum-insulin-like-growth-factor-1-and-c-reactive-protein-concentrations-before-and-after-ovariohysterectomy-in-bitches-with-pyometra
#12
Roman Dąbrowski, Marek Szczubiał, Krzysztof Kostro, Władysław Wawron, Jose J Ceron, Asta Tvarijonaviciute
Pyometra is one of the most common diseases of the reproductive system in bitches. The inflammatory processes occurring in the uterus result in changes in concentrations of numerous serum biomarkers, which are used for monitoring the postoperative period. The aim of the present report was to study the evolution of serum levels of insulin-like growth factor-1 (IGF-1) and C-reactive protein (CRP) in bitches suffered from pyometra and after ovariohysterectomy in comparison with the control group of healthy dogs submitted to the surgery...
March 1, 2015: Theriogenology
https://www.readbyqxmd.com/read/25031358/the-lif-mediated-molecular-signature-regulating-murine-embryo-implantation
#13
Gracy X Rosario, Eiichi Hondo, Jae-Wook Jeong, Rafidah Mutalif, Xiaoqian Ye, Li Xuan Yee, Colin L Stewart
The establishment of a receptive uterus is the prime requirement for embryo implantation. In mice, the E2-induced cytokine leukemia inhibitory factor (LIF) is essential in switching the uterine luminal epithelium (LE) from a nonreceptive to a receptive state. Here we define the LIF-mediated switch using array analysis and informatics to identify LIF-induced changes in gene expression and annotated signaling pathways specific to the LE. We compare gene expression profiles at 0, 1, 3, and 6 h, following LIF treatment...
September 2014: Biology of Reproduction
https://www.readbyqxmd.com/read/24728609/nutrient-restriction-induces-failure-of-reproductive-function-and-molecular-changes-in-hypothalamus-pituitary-gonadal-axis-in-postpubertal-gilts
#14
Dongsheng Zhou, Yong Zhuo, Lianqiang Che, Yan Lin, Zhengfeng Fang, De Wu
People on a diet to lose weight may be at risk of reproductive failure. To investigate the effects of nutrient restriction on reproductive function and the underlying mechanism, changes of reproductive traits, hormone secretions and gene expressions in hypothalamus-pituitary-gonadal axis were examined in postpubertal gilts at anestrus induced by nutrient restriction. Gilts having experienced two estrus cycles were fed a normal (CON, 2.86 kg/d) or nutrient restricted (NR, 1 kg/d) food regimens to expect anestrus...
July 2014: Molecular Biology Reports
https://www.readbyqxmd.com/read/24680661/transplantation-of-bone-marrow-mesenchymal-stem-cells-on-collagen-scaffolds-for-the-functional-regeneration-of-injured-rat-uterus
#15
Lijun Ding, Xin'an Li, Haixiang Sun, Jing Su, Nacheng Lin, Bruno Péault, Tianran Song, Jun Yang, Jianwu Dai, Yali Hu
Serious injuries of endometrium in women of reproductive age are often followed by uterine scar formation and a lack of functional endometrium predisposing to infertility or miscarriage. Bone marrow-derived mesenchymal stem cells (BM-MSCs) have shown great promise in clinical applications. In the present study, BM-MSCs loaded onto degradable collagen membranes were constructed. Collagen membranes provided 3-dimmensional architecture for the attachment, growth and migration of rat BM-MSCs and did not impair the expression of the stemness genes...
June 2014: Biomaterials
https://www.readbyqxmd.com/read/24670778/igf-1-gene-expression-is-differentially-regulated-by-estrogen-receptors-%C3%AE-and-%C3%AE-in-mouse-endometrial-stromal-cells-and-ovarian-granulosa-cells
#16
Yuki Ogo, Shusuke Taniuchi, Fumiya Ojima, Sayo Hayashi, Itsuo Murakami, Yuka Saito, Sakae Takeuchi, Toshiyuki Kudo, Sumio Takahashi
Insulin-like growth factor 1 (IGF-1) is involved in regulations of reproductive functions in rats and mice. IGF-1 expression is regulated by estrogen in several reproductive organs including the uterus and ovary. Two types of estrogen receptor (ERα and ERβ) are expressed in mouse uteri and ovaries, and it is unclear whether they differently mediate IGF-1 gene transcription. To clarify the roles of ERα and ERβ, mouse endometrial stromal cells and ovarian granulosa cells were treated with ligands specific for individual estrogen receptors...
2014: Journal of Reproduction and Development
https://www.readbyqxmd.com/read/24661434/serum-insulin-like-growth-factor-i-iron-c-reactive-protein-and-serum-amyloid-a-for-prediction-of-outcome-in-dogs-with-pyometra
#17
Supranee Jitpean, Bodil Ström Holst, Odd V Höglund, Ann Pettersson, Ulf Olsson, Emma Strage, Fredrik Södersten, Ragnvi Hagman
Pyometra, accumulation of pus in the uterus, is a bacterial infection that frequently initiates systemic inflammation. The disease may have lethal consequences when the systemic effects are severe or complications occur. Markers for identifying high-risk patients and predicting outcome are therefore in high demand. The objective of this study was to measure serum concentrations of insulin-like growth factor-I (IGF-I), iron, C-reactive protein (CRP), and serum amyloid A (SAA) in bitches with pyometra and to explore the possible value of these variables for detection of increased morbidity...
July 1, 2014: Theriogenology
https://www.readbyqxmd.com/read/24531613/mdl-1-a-growth-and-tumor-suppressor-slows-aging-and-prevents-germline-hyperplasia-and-hypertrophy-in-c-elegans
#18
Michèle Riesen, Inna Feyst, Nattaphong Rattanavirotkul, Marina Ezcurra, Jennifer M A Tullet, Irene Papatheodorou, Matthias Ziehm, Catherine Au, Ann F Gilliat, Josephine Hellberg, Janet M Thornton, David Gems
In C. elegans, increased lifespan in daf-2 insulin/IGF-1 receptor mutants is accompanied by up-regulation of the MDL-1 Mad basic helix-loop-helix leucine zipper transcription factor. Here we describe the role of mdl-1 in C. elegans germline proliferation and aging. The deletion allele mdl-1(tm311) shortened lifespan, and did so significantly more so in long-lived daf-2 mutants implying that mdl-1(+) contributes to effects of daf-2 on lifespan. mdl-1 mutant hermaphrodites also lay increased numbers of unfertilized oocytes...
February 2014: Aging
https://www.readbyqxmd.com/read/24508636/insulin-like-growth-factor-i-induces-proliferation-and-migration-of-porcine-trophectoderm-cells-through-multiple-cell-signaling-pathways-including-protooncogenic-protein-kinase-1-and-mitogen-activated-protein-kinase
#19
Wooyoung Jeong, Gwonhwa Song, Fuller W Bazer, Jinyoung Kim
During early pregnancy, the developing conceptus is dependent upon a wide range of growth factors and nutrients that are secreted by or transported by uterine epithelia into the uterus at the maternal-conceptus interface for successful implantation and placentation. Among these factors, insulin-like growth factor-I (IGF-I) is known to play an important role in development of the early embryo and uterine endometrium. However, few studies have been conducted with pigs to determine IGF-I-induced functional effects on peri-implantation embryos such as activation of cell signaling cascades responsible for growth, proliferation and differentiation of cells of the conceptus...
March 25, 2014: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/24333269/bovine-and-murine-tissue-expression-of-insulin-like-growth-factor-i
#20
A M Oberbauer, J M Belanger, G Rincon, A Cánovas, A Islas-Trejo, R Gularte-Mérida, M G Thomas, J F Medrano
The genomic architecture and expression of the Igf-1 gene are complex yielding multiple IGF-I transcript isoforms with putative functional contributions to growth and metabolism. Using RNA-seq on different tissues, physiological states, and species, the breadth of transcripts expressed was determined. Tissues from pre- and post-pubertal heifers and mature mice were collected and the transcript isoforms characterized. Three different IGF-I isoforms were detected in heifers with Class 1 transcripts most abundantly expressed...
February 10, 2014: Gene
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