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Relevant bibliographies by topics / Rat placenta

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Journal articles

Academic literature on the topic 'Rat placenta'

Author: Grafiati

Published: 6 September 2023

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Journal articles on the topic "Rat placenta"

1

Trifunović, Svetlana, Branka Šošić Jurjević, Nataša Ristić, et al. "Maternal Dexamethasone Exposure Induces Sex-Specific Changes in Histomorphology and Redox Homeostasis of Rat Placenta." International Journal of Molecular Sciences 24, no. 1 (2022): 540. http://dx.doi.org/10.3390/ijms24010540.

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As the mediator between the mother and fetus, the placenta allows the most appropriate environment and optimal fetal growth. The placenta of one sex sometimes has a greater ability over the other to respond to and protect against possible maternal insults. Here, we characterized sex differences in the placenta’s morphological features and antioxidant status following dexamethasone (Dx) exposure. Pregnant rats were exposed to Dx or saline. The placenta was histologically and stereologically analyzed. The activity of the antioxidant enzymes, lipid peroxides (TBARS), superoxide anion and nitric o

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2

Achur, Rajeshwara N., Sean T. Agbor-Enoh, and D. Channe Gowda. "Rat Spongiotrophoblast-specific Protein Is Predominantly a Unique Low Sulfated Chondroitin Sulfate Proteoglycan." Journal of Biological Chemistry 281, no. 43 (2006): 32327–34. http://dx.doi.org/10.1074/jbc.m605841200.

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We have previously demonstrated that the human placenta contains a uniquely low sulfated extracellular aggrecan family chondroitin sulfate proteoglycan (CSPG). This CSPG is a major receptor for the adherence of Plasmodium falciparum-infected red blood cells (IRBCs) in placentas, causing pregnancy-specific malaria. However, it is not known whether such low sulfated CSPGs occur in placentas of other animals and, if so, whether IRBCs bind to those CSPGs. In this study, we show that rat placenta contains a uniquely low sulfated extracellular CSPG bearing chondroitin sulfate (CS) chains, which comp

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3

Clifton, Vicki L., Phillip C. Owens, Phillip J. Robinson, and Roger Smith. "Identification and characterization of a corticotrophin-releasing hormone receptor in human placenta." European Journal of Endocrinology 133, no. 5 (1995): 591–97. http://dx.doi.org/10.1530/eje.0.1330591.

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Clifton VL, Owens PC, Robinson PJ, Smith R. Identification and characterization of a corticotrophinreleasing hormone receptor in human placenta. Eur J Endocrinol 1995;133:591–7. ISSN 0804–4643 Corticotrophin-releasing hormone (CRH) causes vasodilatation in the human fetal–placental circulation and has paracrine actions in placental tissue, suggesting that CRH receptors may be present in the human placenta. We have now identified and characterized placental CRH binding sites and compared them to those described previously in human myometrium and rat pituitary. Radiolabelled ovine CRH binding to

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4

Charest, Phanie L., Vanessa Vrolyk, Pauline Herst, et al. "Histomorphologic Analysis of the Late-term Rat Fetus and Placenta." Toxicologic Pathology 46, no. 2 (2018): 158–68. http://dx.doi.org/10.1177/0192623318755135.

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Histological examination of the rat placenta and fetus is uncommon. Toxicological studies mainly rely on gross examination of the fetus and on fetal and placental weights. These are often insufficient to assess the fetal and placental toxicity of xenobiotics. The small size of the fetus makes its dissection labor-intensive. Thus, our objective was to develop a simple and accurate technique to evaluate the rat fetus and placenta. Sprague-Dawley rat fetuses at gestational day 19.5 ( n = 18) and their placentas ( n = 32) were fixed in formalin. Placentas were cut transversally in the center. Fetu

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5

Borke, James L., Ariel Caride, Anil K. Verma, et al. "Calcium pump epitopes in placental trophoblast basal plasma membranes." American Journal of Physiology-Cell Physiology 257, no. 2 (1989): C341—C346. http://dx.doi.org/10.1152/ajpcell.1989.257.2.c341.

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The syncytiotrophoblast represents the primary cellular barrier between maternal and fetal circulations in the placenta. Large amounts of Ca2+ are transported across this barrier by mechanisms that are not clearly understood. To further understand this phenomenon, we examined rat and human placenta by immunohistochemical and protein blotting techniques with a monoclonal antibody raised against the human erythrocyte plasma membrane Ca2+ pump. Immunohistochemistry with this antibody showed specific staining in the human placenta of the basal (fetal facing) surface of the syncytiotrophoblast. In

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6

Lacroix, MC, H. Jammes, and G. Kann. "Occurrence of a growth hormone-releasing hormone-like messenger ribonucleic acid and immunoreactive peptide in the sheep placenta." Reproduction, Fertility and Development 8, no. 3 (1996): 449. http://dx.doi.org/10.1071/rd9960449.

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Growth hormone releasing factor (GHRH) has been described in the rat, mouse and human placentae. This study reports the presence of an immunoreactive GHRH activity (IR-GHRH) in the ovine placenta. This activity was detected by radioimmunoassay from day 50 (D50) until the end of pregnancy. Higher IR-GHRH concentration in placental tissue was observed on days 100 (543 +/- 123 pg/g) and 140 (550 +/- 62 pg/g) and, when compared with the GHRH content of the ovine hypothalamus (1.2 ng/hypothalamus), represents a considerable amount of GHRH per placenta (a mean of 200 ng). Perifused placenta explants

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7

Shearman, Lauren P., Alison M. McReynolds, Feng C. Zhou, and Jerrold S. Meyer. "Relationship between [125I]RTI-55-labeled cocaine binding sites and the serotonin transporter in rat placenta." American Journal of Physiology-Cell Physiology 275, no. 6 (1998): C1621—C1629. http://dx.doi.org/10.1152/ajpcell.1998.275.6.c1621.

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We investigated the characteristics of cocainelike binding sites in rat placenta using [125I]RTI-55. [3H]paroxetine binding and immunocytochemical staining for serotonin [5-hydroxytryptamine (5-HT)] and for the 5-HT transporter were also used to obtain evidence for rat placental 5-HT uptake. [125I]RTI-55 saturation analyses with membranes from normal gestational day 20 placentas yielded curvilinear Scatchard plots that were resolved into high- and low-affinity components (mean dissociation constants of 0.29 and 7.9 nM, respectively). Drug competition studies with various monoamine uptake inhib

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8

White, Elizabeth A., Joffre B. Baker, Michael McGrogan, and Paul A. Kitos. "Protease Nexin 1 Is Expressed in the Human Placenta." Thrombosis and Haemostasis 69, no. 02 (1993): 119–23. http://dx.doi.org/10.1055/s-0038-1651566.

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SummaryProtease nexin 1 (PN1), a serine protease inhibitor that inactivates thrombin, urokinase, and plasmin, is produced abundantly in cultures of human fibroblasts and rat and human glioma cells. The major sites of PN1 synthesis in vivo and the specific physiological function(s) of this serpin are unknown. Using Northern blot analysis and a full-length PN1 cDNA probe we demonstrated the presence of PN1 mRNA in human term placentas. In situ hybridization of placental tissue with a PN1 riboprobe showed that PN1 mRNA is present throughout the placenta and is also abundant in the placental membr

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9

Vaswani, Kanchan, Hsiu-Wen Chan, Hassendrini N. Peiris, et al. "Gestation Related Gene Expression of the Endocannabinoid Pathway in Rat Placenta." Mediators of Inflammation 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/850471.

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Mammalian placentation is a vital facet of the development of a healthy and viable offspring. Throughout gestation the placenta changes to accommodate, provide for, and meet the demands of a growing fetus. Gestational gene expression is a crucial part of placenta development. The endocannabinoid pathway is activated in the placenta and decidual tissues throughout pregnancy and aberrant endocannabinoid signaling during the period of placental development has been associated with pregnancy disorders. In this study, the gene expression of eight endocannabinoid system enzymes was investigated thro

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10

Sobočan, Nikola, Marta Himelreich-Perić, Ana Katušić-Bojanac та ін. "Extended Prophylactic Effect of N-tert-Butyl-α-phenylnitron against Oxidative/Nitrosative Damage Caused by the DNA-Hypomethylating Drug 5-Azacytidine in the Rat Placenta". International Journal of Molecular Sciences 23, № 2 (2022): 603. http://dx.doi.org/10.3390/ijms23020603.

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Antioxidant N-tert-Butyl-α-phenylnitron (PBN) partly protected embryos from the negative effects of a DNA demethylating drug 5-azacytidine during pregnancy. Our aim was to investigate PBN’s impact on the placenta. Fischer rat dams were treated on gestation days (GD) 12 and 13 by PBN (40 mg/kg), followed by 5azaC (5 mg/kg) after one hour. Global methylation was assessed by pyrosequencing. Numerical density was calculated from immunohistochemical expression in single cells for proliferating (PCNA), oxidative (oxoguanosine) and nitrosative (nitrotyrosine) activity. Results were compared with the

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