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https://www.readbyqxmd.com/read/29122954/pregnancy-adapted-uterine-artery-endothelial-cell-ca2-signaling-and-its-relationship-with-membrane-potential
#1
Roxanne E Alvarez, Derek S Boeldt, Bikash R Pattnaik, Hannah L Friedman, Ian M Bird
Pregnancy-derived uterine artery endothelial cells (P-UAEC) express P2Y2 receptors and at high cell density show sustained and synchronous [Ca2+]i burst responses in response to ATP Bursts in turn require coupling of transient receptor potential canonical type3 channel (TRPC3) and inositol 1,4,5-triphosphate receptor type 2 (IP3R2), which is upregulated in P-UAEC in a manner dependent on connexin 43 (Cx43) gap junctions. While there is no known direct interaction of TRPC3 with Cx43, early descriptions of TRPC3 function showed it may also be influenced by altered membrane potential (Vm)...
November 2017: Physiological Reports
https://www.readbyqxmd.com/read/29117499/preclinical-chorioamnionitis-dysregulates-cxcl1-cxcr2-signaling-throughout-the-placental-fetal-brain-axis
#2
REVIEW
Tracylyn R Yellowhair, Shahani Noor, Jessie R Maxwell, Christopher V Anstine, Akosua Y Oppong, Shenandoah Robinson, Erin D Milligan, Lauren L Jantzie
In the United States, perinatal brain injury (PBI) is a major cause of infant mortality and childhood disability. For a large proportion of infants with PBI, central nervous system (CNS) injury begins in utero with inflammation (chorioamnionitis/CHORIO) and/or hypoxia-ischemia. While studies show CHORIO contributes to preterm CNS injury and is also a common independent risk factor for brain injury in term infants, the molecular mechanisms mediating inflammation in the placental-fetal-brain axis that result in PBI remain a gap in knowledge...
November 5, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/29100521/dce-mri-of-patient-derived-xenograft-models-of-uterine-cervix-carcinoma-associations-with-parameters-of-the-tumor-microenvironment
#3
Anette Hauge, Catherine S Wegner, Jon-Vidar Gaustad, Trude G Simonsen, Lise Mari K Andersen, Einar K Rofstad
BACKGROUND: Abnormalities in the tumor microenvironment are associated with resistance to treatment, aggressive growth, and poor clinical outcome in patients with advanced cervical cancer. The potential of dynamic contrast-enhanced (DCE) MRI to assess the microvascular density (MVD), interstitial fluid pressure (IFP), and hypoxic fraction of patient-derived cervical cancer xenografts was investigated in the present study. METHODS: Four patient-derived xenograft (PDX) models of squamous cell carcinoma of the uterine cervix (BK-12, ED-15, HL-16, and LA-19) were subjected to Gd-DOTA-based DCE-MRI using a 7...
November 3, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29077897/in-vivo-oxygen-temperature-and-ph-dynamics-in-the-female-reproductive-tract-and-their-importance-in-human-conception-a-systematic-review
#4
Ka Ying Bonnie Ng, Roel Mingels, Hywel Morgan, Nick Macklon, Ying Cheong
BACKGROUND: Despite advances in ART, implantation and pregnancy rates per embryo transfer still remain low. IVF laboratories strive to ensure that the process of handling gametes in vitro closely mimics the in vivo environment. However, there remains a lack of knowledge regarding the in vivo regulation and dynamic variation in biophysical parameters such as oxygen concentration, pH and temperature within the reproductive tract. OBJECTIVE AND RATIONALE: To undertake a systematic review of the current understanding of the physico-chemical parameters of oxygen tension (pO2), pH and temperature within the female reproductive tract, and their potential implications in clinical and pathological processes related to fertility and those pertaining to limited reproductive capacity...
October 25, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/29055542/extending-the-duration-of-the-voluntary-waiting-period-from-60-to-88-days-in-cows-that-received-timed-artificial-insemination-after-the-double-ovsynch-protocol-affected-the-reproductive-performance-herd-exit-dynamics-and-lactation-performance-of-dairy-cows
#5
M L Stangaferro, R W Wijma, M Masello, Mark J Thomas, J O Giordano
This experiment evaluated the reproductive performance, herd exit dynamics, and lactation performance of dairy cows managed with a voluntary waiting period (VWP) of 60 or 88 d. Secondary objectives were evaluating VWP effect on cyclicity status, uterine health, systemic inflammation, and body condition score (BCS) before first service. Lactating Holstein cows from 3 commercial farms in New York State cows were blocked by parity group and total milk yield in their previous lactation and then randomly assigned to VWP of 60 (VWP60; n = 1,352) or 88 (VWP88; n = 1,359) days in milk (DIM)...
October 18, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29053991/molecular-mechanisms-of-development-of-the-human-fetal-female-reproductive-tract
#6
Gerald R Cunha, Takeshi Kurita, Mei Cao, Joel Shen, Stanley Robboy, Laurence Baskin
Human female reproductive tract development rests mostly upon hematoxilyn and eosin stained sections despite recent advances on molecular mechanisms in mouse studies. We report application of immunohistochemical methods to explore the ontogeny of epithelial and mesenchymal differentiation markers (keratins, homobox proteins, steroid receptors), transcription factors and signaling molecules (TP63 and RUNX1) during human female reproductive tract development. Keratins 6, 7, 8, 10, 14 and 19 (KRT6, KRT7, KRT8, KRT10, KRT14, KRT19) were expressed in a temporally and spatially dynamic fashion...
July 29, 2017: Differentiation; Research in Biological Diversity
https://www.readbyqxmd.com/read/29033397/a-transvaginal-endoscopy-based-technique-for-performing-ovarian-examinations-in-sows
#7
Minami W Okuyama, Tomochika Sugiura, Masaharu Moriyoshi, Kazuto Yamashita, Jun Tamura, Seiji Katagiri
For examining pig ovaries, which have complex structures, laparoscopy is a useful technique, but requires general anesthesia; therefore, it cannot be performed repeatedly within a short period of time. We report a transvaginal endoscopy-based technique for conducting ovarian examinations without general anesthesia. Sows were sedated in pig stalls. Using a colonoscope, the vaginal wall was punctured with a trocar. To avoid the trocar being caught in the broad ligament of the uterus or the connective tissue around the vagina, the trocar was inserted close to the external uterine os and between the 2:00 and 3:00 or the 9:00 and 10:00 positions (in a clockwise direction)...
October 14, 2017: Journal of Reproduction and Development
https://www.readbyqxmd.com/read/28989909/evaluation-of-progesterone-and-ovulation-stimulating-drugs-on-the-glandular-epithelium-and-angiogenesis-in-mice
#8
Bahman Rashidi, Mohammad Mardani, Mostafa Peyvandi Karizbodagh
BACKGROUND: Human endometrium is a dynamic tissue during the menstrual cycle can be influenced by ovarian hormones. The purpose of this study was to evaluate the endometrium angiogenesis under the influence of human menopausal gonadotropin and human chorionic gonadotropin (HMG and HCG) that stimulate ovulation and progesterone. MATERIALS AND METHODS: In this study, thirty adult female mice were randomly divided into three groups as: control, gonadotropin and gonadotropin + progesterone...
2017: Advanced Biomedical Research
https://www.readbyqxmd.com/read/28982184/uptake-and-release-of-amino-acids-in-the-fetal-placental-unit-in-human-pregnancies
#9
Maia Blomhoff Holm, Nasser Ezzatkhah Bastani, Ane Moe Holme, Manuela Zucknick, Thomas Jansson, Helga Refsum, Lars Mørkrid, Rune Blomhoff, Tore Henriksen, Trond Melbye Michelsen
OBJECTIVES: The current concepts of human fetal-placental amino acid exchange and metabolism are mainly based on animal-, in vitro- and ex vivo models. We aimed to determine and assess the paired relationships between concentrations and arteriovenous differences of 19 amino acids on the maternal and fetal sides of the human placenta in a large study sample. METHODS: This cross-sectional in vivo study included 179 healthy women with uncomplicated term pregnancies...
2017: PloS One
https://www.readbyqxmd.com/read/28939933/cellular-mechanics-of-primary-human-cervical-fibroblasts-influence-of-progesterone-and-a-pro-inflammatory-cytokine
#10
Vasudha Shukla, Victoria Barnhouse, William E Ackerman, Taryn L Summerfield, Heather M Powell, Jennifer L Leight, Douglas A Kniss, Samir N Ghadiali
The leading cause of neonatal mortality, pre-term birth, is often caused by pre-mature ripening/opening of the uterine cervix. Although cervical fibroblasts play an important role in modulating the cervix's extracellular matrix (ECM) and mechanical properties, it is not known how hormones, i.e., progesterone, and pro-inflammatory insults alter fibroblast mechanics, fibroblast-ECM interactions and the resulting changes in tissue mechanics. Here we investigate how progesterone and a pro-inflammatory cytokine, IL-1β, alter the biomechanical properties of human cervical fibroblasts and the fibroblast-ECM interactions that govern tissue-scale mechanics...
September 22, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28938408/pioneer-factors-foxa1-and-foxa2-assist-selective-glucocorticoid-receptor-signaling-in-human-endometrial-cells
#11
Shannon Whirledge, Edwina P Kisanga, Robert N Taylor, John A Cidlowski
Successful pregnancy relies on dynamic control of cell signaling to achieve uterine receptivity and the necessary biological changes required for endometrial decidualization, embryo implantation, and fetal development. Glucocorticoids are master regulators of intracellular signaling and can directly regulate embryo implantation and endometrial remodeling during murine pregnancy. In immortalized human uterine cells, we have shown that glucocorticoids and estradiol (E2) coregulate thousands of genes. Recently, glucocorticoids and E2 were shown to coregulate the expression of Left-right determination factor 1 (LEFTY1), previously implicated in the regulation of decidualization...
November 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28915450/molecular-signature-and-functional-analysis-of-uterine-ilcs-in-mouse-pregnancy
#12
Minmin Li, Yimin Gao, Liang Yong, Dake Huang, Jijia Shen, Miao Liu, Cuiping Ren, Xin Hou
In addition to natural killer cells, other innate lymphoid cells have recently been identified in the mouse and human uterus, but their roles in successful pregnancy remain poorly defined. In this study, we examined the dynamic changes of uterine innate lymphoid cells throughout pregnancy in mice. We found that the total number of uterine innate lymphoid cells markedly increased at early-gestation. Among the three groups of uterine innate lymphoid cells, the number of the group 2 uterine innate lymphoid cells increased the most during pregnancy...
September 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/28914881/microrna-200c-impairs-uterine-receptivity-formation-by-targeting-fut4-and-%C3%AE-1-3-fucosylation
#13
Qin Zheng, Dandan Zhang, Y U Yang, Xinyuan Cui, Jiaqi Sun, Caixia Liang, Huamin Qin, Xuesong Yang, Shuai Liu, Qiu Yan
Successful embryo implantation requires the establishment of a receptive endometrium. Poor endometrial receptivity has generally been considered as a major cause of infertility. Protein glycosylation is associated with many physiological and pathological processes. The fucosylation is catalyzed by the specific fucosyltransferases. Fucosyltransferase IV (FUT4) is the key enzyme for the biosynthesis of α1,3-fucosylated glycans carried by glycoproteins, and the previous studies showed FUT4 expression changed dynamically during perimplantation...
December 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28822903/uterine-clinical-findings-fertility-rate-leucocyte-migration-and-cox-2-protein-levels-in-the-endometrial-tissue-of-susceptible-mares-treated-with-platelet-rich-plasma-before-and-after-ai
#14
Lorenzo G Segabinazzi, Aime M Friso, Sebastian B Correal, André M Crespilho, José Antonio Dell'Aqua, Jordi Miró, Frederico O Papa, Marco Antonio Alvarenga
Persistent mating-induced endometritis (PMIE) results in decreased fertility in horses, thereby causing a significant impact in the horse market. Platelet-rich plasma (PRP), a modulator of the inflammatory response, has been largely used in veterinary medicine. Here, we investigated the effects of PRP on uterine inflammation, conception rate, endometrial polymorphonuclear neutrophil (PMN) migration, and COX-2 protein levels in the endometrial tissue. Thirteen PMIE-susceptible mares were used for artificial insemination (AI)...
August 12, 2017: Theriogenology
https://www.readbyqxmd.com/read/28731465/pr-set7-deficiency-limits-uterine-epithelial-population-growth-hampering-postnatal-gland-formation-in-mice
#15
Tongtong Cui, Bo He, Shuangbo Kong, Chan Zhou, Hangxiao Zhang, Zhangli Ni, Haili Bao, Jingtao Qiu, Qiliang Xin, Danny Reinberg, John P Lydon, Jinhua Lu, Haibin Wang
Formation of secretary endometrial glands in the uterus known as adenogenesis is a typical process of branching morphogenesis involving dynamic epithelial growth and differentiation. Unsuccessful adenogenesis often leads to female infertility. However, it remains largely unexplored so far regarding the epigenetic machinery governing normal endometrial gland formation. Here, we demonstrated that PR-Set7, an epigenetic regulator for H4K20me1 modification, was extensively expressed in the postnatal uteri, and its conditional deletion resulted in a complete lack of endometrial glands and infertility in mice...
December 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28722155/metabolite-availability-as-a-window-to-view-the-early-embryo-microenvironment-in-vivo
#16
REVIEW
Kailun Hu, Yang Yu
A preimplantation embryo exists independent of blood supply, and relies on energy sources from its in vivo environment (e.g., oviduct and uterine fluid) to sustain its development. The embryos can survive in this aqueous environment because it contains amino acids, proteins, lactate, pyruvate, oxygen, glucose, antioxidants, ions, growth factors, hormones, and phospholipids-albeit the concentration of each component varies by species, stage of the estrous cycle, and anatomical location. The dynamic nature of this environment sustains early development from the one-cell zygote to blastocyst, and is reciprocally influenced by the embryo at each embryonic stage...
October 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28697394/dynamic-thiol-disulphide-homeostasis-in-patients-with-uterine-myoma
#17
Semra Eroglu, İsmail Haskul, Vüsale Aziz, Engin Yurtcu, Fatih Karatas, Salim Neşelioğlu, Ozcan Erel
BACKGROUND: The aim of this study is to measure and compare the dynamic thiol and disulphide homeostasis between patients with Uterine Myoma (UM) and healthy subjects. MATERIAL AND METHOD: A total of 54 patients with UM who were diagnosed by transvaginal ultrasonography and 37 age- and body mass index-matched healthy individuals were included in this study. Thiol/disulphide homeostasis was measured by a novel automatic spectrophotometric method. RESULTS: The mean serum native thiol, disulphide, and thiol levels were statistically lower in UM group than those in the control group [(284...
July 1, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28683759/intravenous-neutralization-of-vascular-endothelial-growth-factor-reduces-vascular-function-permeability-of-the-ovary-and-prevents-development-of-ohss-like-symptoms-in-rhesus-monkeys
#18
C V Bishop, D M Lee, O D Slayden, X Li
BACKGROUND: Ovarian hyperstimulation syndrome (OHSS) is a disorder associated with elevated serum VEGFA following chorionic gonadotropin (hCG) exposure in controlled ovarian stimulation (COS) cycles in women. In this study, we tested the effect of intravenous VEGFA neutralization on OHSS-like symptoms and vascular function in rhesus macaques during COS cycles. METHODS: Monkeys (n = 8) were treated with 3 COS protocols and assigned randomly to groups as follows: 1) COS alone (Control, n = 5); 2) COS + VEGF mAb Avastin 19 ± 5 h before hCG (Avastin pre-hCG; n = 6); 3) COS + Avastin 3-4 days post-hCG (Avastin post-hCG; n = 4); 4) COS + Simulated Early Pregnancy (SEP n = 3); or 5) COS + SEP + Avastin (SEP + Avastin n = 3)...
July 6, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28653669/dnk-cells-facilitate-the-interaction-between-trophoblastic-and-endothelial-cells-via-vegf-c-and-hgf
#19
Liyang Ma, Guanlin Li, Guangming Cao, Yuchun Zhu, Mei-Rong Du, Yangyu Zhao, Hao Wang, Yanlei Liu, Yanyan Yang, Yu-Xia Li, Da-Jin Li, Huixia Yang, Yan-Ling Wang
Decidual NK (dNK) cells, identified as CD56(bright)CD16(-)CD3(-), account for ~70% of lymphocytes within the uterine wall during early pregnancy. Accumulating evidence suggests that tight interactions between placental trophoblasts and dNK cells are critical for trophoblast cell differentiation. However, the underlying mechanism remains to be explored in detail. In the present study, conditioned medium (CM) was collected from cultured primary human dNK cells. Primary cytotrophoblasts (CTBs) or the human trophoblast cell line HTR8/SVneo was treated with dNK-CM and co-cultured with human umbilical vein endothelial cells (HUVECs) in a three-dimensional Matrigel scaffold, and the formation of tube structures was dynamically monitored with live cell imaging...
September 2017: Immunology and Cell Biology
https://www.readbyqxmd.com/read/28633489/effects-of-early-pregnancy-on-uterine-lymphocytes-and-endometrial-expression-of-immune-regulatory-molecules-in-dairy-heifers
#20
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
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