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Ischemia reperfusion injury uterus

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https://www.readbyqxmd.com/read/27897020/the-effect-of-erythropoietin-on-uterus-inflammation-during-ischemia-reperfusion-injury-in-rats
#1
C Tsompos, C Panoulis, K Toutouzas, A Triantafyllou, G Zografos, A Papalois
OBJECTIVE: This experiment evaluated the influence of erythropoietin (Epo) in an animal model of uterine ischemia reperfusion using the quoting established protocol. DESIGN: The effects of erythropoietin treatment were evaluated by mean uterus inflammation (UI) lesions. UI lesions were determined at the 60th reperfusion min (for groups A and C) and at the 120th reperfusion min (for groups B and D). Groups A and B received no drugs, whereas rats from groups C and D were administered with erythropoietin...
2016: Ceská Gynekologie
https://www.readbyqxmd.com/read/27329637/evaluation-of-allowable-time-and-histopathological-changes-in-warm-ischemia-of-the-uterus-in-cynomolgus-monkey-as-a-model-for-uterus-transplantation
#2
Masataka Adachi, Iori Kisu, Toshihiro Nagai, Katsura Emoto, Kouji Banno, Kiyoko Umene, Yuya Nogami, Hideaki Tsuchiya, Iori Itagaki, Ikuo Kawamoto, Takahiro Nakagawa, Kazumasa Ogasawara, Daisuke Aoki
INTRODUCTION: The objective of this study was to examine the allowable warm ischemic time and pathological changes due to ischemia and reperfusion injury in the uterus of the cynomolgus monkey as a model for uterus transplantation. MATERIAL AND METHODS: Six female cynomolgus monkeys were used in the study. The uterus was resected from the vaginal canal and connected through the bilateral ovarian and uterine arteries and veins only. One animal was used as a control...
September 2016: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/26941907/the-protective-effect-of-%C3%AE-aminobutyric-acid-on-kidney-injury-induced-by-renal-ischemia-reperfusion-in-ovariectomized-estradiol-treated-rats
#3
Nahid Talebi, Mehdi Nematbakhsh, Ramesh Monajemi, Safoora Mazaheri, Ardeshir Talebi, Marzieh Vafapour
BACKGROUND: Renal ischemia-reperfusion injury (IRI) is one of the most important causes of kidney injury, which is possibly gender-related. This study was designed to investigate the role of γ-aminobutyric acid (GABA) against IRI in ovariectomized estradiol-treated rats. METHODS: Thirty-five ovariectomized Wistar rats were used in six experimental groups. The first three groups did not subject to estradiol treatment and assigned as sham-operated, control, and GABA-treated groups...
2016: International Journal of Preventive Medicine
https://www.readbyqxmd.com/read/26647795/remifentanil-protects-uterus-against-ischemia-reperfusion-injury-in-rats
#4
Yunus Oktay Atalay, Serap Aktas, Sadik Sahin, Zafer Kucukodaci, Ozlem Bingol Ozakpinar
PURPOSE: To investigate the effects of remifentanil as an antioxidant and analyze the histopathologic, biochemical changes in experimental ischemia-reperfusion (I/R) exposed rat uteri. METHODS: Wistar albino rats were assigned to three groups (n = 7). 2h period of ischemia was followed by 1h of reperfusion in the I/R and the I/R-remifentanil groups. After ischemia, no drug was administered in the sham and I/R groups. In the I/R-remifentanil group, remifentanil infusion (2 μg/kg/min) was started in the ischemia period, and continued until the end of reperfusion...
November 2015: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/26380243/effect-of-%C3%AE-aminobutyric-acid-on-kidney-injury-induced-by-renal-ischemia-reperfusion-in-male-and-female-rats-gender-related-difference
#5
Marzieh Vafapour, Mehdi Nematbakhsh, Ramesh Monajemi, Safoora Mazaheri, Ardeshir Talebi, Nahid Talebi, Soheyla Shirdavani
BACKGROUND: The most important cause of kidney injury is renal ischemia/reperfusion injury (IRI), which is gender-related. This study was designed to investigate the protective role of Γ-aminobutyric acid (GABA (against IRI in male and female rats. MATERIALS AND METHODS: Thirty-six female and male wistar rats were assigned to six experimental groups. The IRI was induced by clamping renal vessels for 45 min then was performed reperfusion for 24 h. The group sex posed to IRI were pretreated with GABA and were compared with the control groups...
2015: Advanced Biomedical Research
https://www.readbyqxmd.com/read/25830011/preventive-role-of-estradiol-on-kidney-injury-induced-by-renal-ischemia-reperfusion-in-male-and-female-rats
#6
Akram Iran-Nejad, Mehdi Nematbakhsh, Fatemeh Eshraghi-Jazi, Ardeshir Talebi
BACKGROUND: Renal ischemia-reperfusion (RIR) is the main cause of renal failure. The incidence of RIR injury seems to be gender-related due to female sex hormone; estrogen. This study was designed to investigate the protective role of estrogen against RIR injury in male and ovariectomized female rats. METHODS: Thirty-nine Wistar rats were used in this study as male and ovariectomized female rats in the sham-operated, RIR, and estradiol-treated plus RIR groups. The RIR was induced by clamping the renal vessels for 45 min and then 24 h of reperfusion...
2015: International Journal of Preventive Medicine
https://www.readbyqxmd.com/read/24819371/bone-marrow-derived-stem-cell-bmdsc-transplantation-improves-fertility-in-a-murine-model-of-asherman-s-syndrome
#7
Feryal Alawadhi, Hongling Du, Hakan Cakmak, Hugh S Taylor
Asherman's Syndrome is characterized by intrauterine adhesions or fibrosis resulting as a consequence of damage to the basal layer of endometrium and is associated with infertility due to loss of normal endometrium. We have previously shown that bone marrow derived stem cells (BMDSCs) engraft the endometrium in mice and humans and Ischemia/reperfusion injury of uterus promoted BMDSCs migration to the endometrium; however, the role of BMDSCs in Asherman's syndrome has not been characterized. Here a murine model of Asherman's syndrome was created by traumatizing the uterus...
2014: PloS One
https://www.readbyqxmd.com/read/22897736/ischemia-reperfusion-injury-promotes-and-granulocyte-colony-stimulating-factor-inhibits-migration-of-bone-marrow-derived-stem-cells-to-endometrium
#8
Hongling Du, Hanyia Naqvi, Hugh S Taylor
The endometrium is a dynamic tissue that undergoes repeated rounds of regeneration in each reproductive (estrous or menstrual) cycle. We have previously shown that bone marrow (BM)-derived stem cells engraft the endometrium in rodents and humans; however, it is not known if these cells contribute physiologically to uterine cyclic regeneration or alternatively are primarily involved in uterine repair in response to injury. Here we performed male-to-female BM transplant and tested the ability of uterine injury to recruit BM-derived cells to endometrium in the presence and absence of sex steroids...
December 10, 2012: Stem Cells and Development
https://www.readbyqxmd.com/read/22688254/unilateral-uterine-ischemia-reperfusion-induced-bilateral-fetal-loss-and-fetal-growth-restriction-in-a-murine-model-require-intact-complement-component-5
#9
Xiao-Wu Qu, Tamas Jilling, Mark G Neerhof, Kehuan Luo, Emmet Hirsch, Larry G Thaete
The role of complement in ischemia/reperfusion-induced fetal growth restriction and fetal loss is unknown. C5-deficient or wild type timed-pregnant mice were subjected to unilateral uterine ischemia/reperfusion on gestation day 13, either by (1) partial flow restriction by right ovarian artery clamping for 30 min, or (2) total flow restriction by clamping both ovarian and uterine arteries for 5 min. Ischemia/reperfusion-challenged pregnancy outcomes were compared to sham-operated controls 5 days later. Ischemia/reperfusion-treated wild type mice exhibited significantly increased bilateral fetal loss, which was greater in total flow restriction than in partial flow restriction, and decreased fetal weights, which were the same in total flow restriction and partial flow restriction for the surviving fetuses...
September 2012: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/20847304/endothelial-estrogen-receptor-alpha-plays-an-essential-role-in-the-coronary-and-myocardial-protective-effects-of-estradiol-in-ischemia-reperfusion
#10
Julie Favre, Ji Gao, Jean-Paul Henry, Isabelle Remy-Jouet, Isabelle Fourquaux, Audrey Billon-Gales, Christian Thuillez, Jean-François Arnal, Françoise Lenfant, Vincent Richard
OBJECTIVE: To assess the coronary endothelial protective effects of 17β-estradiol (E2) and the role of estrogen receptor (ER) α in ischemia/reperfusion (I/R). METHODS AND RESULTS: E2 exerts protective effects in cardiac I/R. However, the implication in vivo of the endothelium and the cellular targets of the anti-ischemic effects of E2 are unknown. Mice were subjected to I/R (30 minutes of I and 1 hour of R) in vivo, after which acetylcholine-induced relaxation of isolated coronary segments was assessed ex vivo...
December 2010: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/20629318/-permeability-of-exogenetic-recombine-human-erythropoietin-through-placenta-barrier-to-fetal-rats-with-transient-uteroplacental-ischemia
#11
Jun Zhou, Yu-Shan Ma, Hui Liu, Xue-Mei Lin
OBJECTIVE: To investigate whether recombine human erythropoietin can cross the placenta barrier in rats with transient uteroplacental ischemia. METHODS: Rats on day 19 of pregnancy were divided into ischemia-reperfusion group, sham-operated group and rhEPO treated group. Fetal ischemia was induced by bilateral occlusion of the utero-ovarian artery for 20 minutes. 125I-rhEPO or saline were administered intravenously 30 min before the induction of hypoxic-ischemic injury...
May 2010: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/20088851/pyometra-in-an-inguinal-hernia-in-a-bitch
#12
A Gogny, J-F Bruyas, F Fiéni
Pyometra in an inguinal hernia was diagnosed in a 10-year-old intact cross-bred bitch which had had dysorexia, depression and inguinal distension. The hernia contained caudal portions of the two uterine horns, uterine cervix and cranial part of the vagina. As the organs were enlarged and full of pus, manual attempt to push back the uterine horns and the vagina in the abdominal cavity through the inguinal canal was unsuccessful. Herniated uterine horns were ligated and cut in their median portion, so it became possible to remove the cervix and the caudal portion of the horns through the hernial orifice, and the ovaries and the cranial part of the horns through a peritoneal midline incision...
December 2010: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/19897849/experimental-uterus-transplantation
#13
REVIEW
Mats Brännström, Caiza A Wranning, Albert Altchek
BACKGROUND: Uterus transplantation (UTx) is developed in animal models as a future method to treat uterine factor infertility. METHODS: All published studies in the area of UTx research were identified. Aspects relating to surgery, cold-ischemia/reperfusion, rejection, immunosuppression, pregnancy, ethics and institutional requirements were examined. RESULTS: Uterus retrieval surgery has been solved in animals, including primates. Studies on cold-ischemia/reperfusion indicate an ischemic tolerance of >24 h...
May 2010: Human Reproduction Update
https://www.readbyqxmd.com/read/19136085/a-role-for-menstruation-in-preconditioning-the-uterus-for-successful-pregnancy
#14
Jan J Brosens, Malcolm G Parker, Angus McIndoe, Robert Pijnenborg, Ivo A Brosens
Menstruation is widely viewed as serving no purpose other than to reinitiate the endometrial cycle in the absence of pregnancy. Yet, it is striking that cyclic endometrial decidualization followed by menstrual shedding is confined to the few species, including human beings, where placenta formation entails deep trophoblast invasion of maternal tissues and its vasculature. Both menstruation and pregnancy are inflammatory conditions that cause a degree of physiological ischemia-reperfusion tissue injury, albeit much more so in pregnancy...
June 2009: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/19064287/tolerance-of-human-placental-tissue-to-severe-hypoxia-and-its-relevance-for-dual-ex-vivo-perfusion
#15
REVIEW
H Schneider
In the dual ex vivo perfusion of an isolated human placental cotyledon it takes on average 20-30 min to set up stable perfusion circuits for the maternal and fetal vascular compartments. In vivo placental tissue of all species maintains a highly active metabolism and it continues to puzzle investigators how this tissue can survive 30 min of ischemia with more or less complete anoxia following expulsion of the organ from the uterus and do so without severe damage. There seem to be parallels between "depressed metabolism" seen in the fetus and the immature neonate in the peripartum period and survival strategies described in mammals with increased tolerance of severe hypoxia like hibernators in the state of torpor or deep sea diving turtles...
March 2009: Placenta
https://www.readbyqxmd.com/read/17904131/transplantation-of-the-uterus-in-the-sheep-oxidative-stress-and-reperfusion-injury-after-short-time-cold-storage
#16
Caiza A Wranning, Pernilla Dahm-Kähler, Johan Mölne, Ulf A Nilsson, Anders Enskog, Mats Brännström
OBJECTIVE: To study the effects of cold ischemia and reperfusion after transplantation of the sheep uterus and to compare the preservation solution Perfadex (Vitrolife, Mölndal, Sweden) with Ringer's acetate. DESIGN: Experimental animal study. SETTING: University hospital. ANIMAL(S): Adult, female sheep. INTERVENTION(S): One uterine horn with the common uterine cavity and cervix of sexually mature ewes was auto-transplanted after 1 hour of cold ischemic storage in either Perfadex (n = 5) or Ringer's acetate (n = 5)...
September 2008: Fertility and Sterility
https://www.readbyqxmd.com/read/16882260/auto-transplantation-of-the-uterus-in-the-domestic-pig-sus-scrofa-surgical-technique-and-early-reperfusion-events
#17
Caiza Almén Wranning, Randa Racho El-Akouri, Cecilia Lundmark, Pernilla Dahm-Kähler, Johan Mölne, Anders Enskog, Mats Brännström
AIM: To develop a method for auto-transplantation of the uterus in the pig and to evaluate the early reperfusion events after short-term cold ischemia. METHODS: The bicornate uterus, with the cervix but without ovaries, was dissected and isolated with its bilateral feeding and draining vessels. The uterine arteries were cannulated in situ and the uterus was flushed with heparinized Ringer Acetate. It was stored at 4 degrees C for 1-2 h during continuous flushing...
August 2006: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/16810080/the-pathway-selective-estrogen-receptor-ligand-way-169916-displays-differential-activity-in-ischemia-reperfusion-injury-models
#18
Douglas C Harnish, Xiaorong Liu, Thomas Kenney, Richard C Winneker, Chris Chadwick, Gregory S Friedrichs, Edward J Kilbourne
We previously reported on the development of a pathway-selective estrogen receptor (ER) ligand, WAY-169916, that has ER-dependent antiinflammatory activity and is devoid of classic ER transcriptional activity. In the current study, WAY-169916 and 17beta-estradiol (17beta-E2) were evaluated for protective activity in models of cardiac ischemia-reperfusion injury. In rats subjected to cardiac ischemia-reperfusion injury by occlusion of the left coronary artery, infarct size relative to the area at risk in the left ventricle was significantly attenuated by a single dose of 17beta-E2 (20 microg/kg, SC), and WAY-169916 administered SC (10 mg/kg) or IV (1 mg/kg) during the ischemia phase...
June 2006: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/16607102/medroxyprogesterone-acetate-inhibits-the-cardioprotective-effect-of-estrogen-in-experimental-ischemia-reperfusion-injury
#19
Helen L Jeanes, Payong Wanikiat, Isam Sharif, Gillian A Gray
OBJECTIVE: Results from recent clinical trials of estrogen and progestogen therapy (EPT) suggest that some progestogens may interfere with the cardiovascular benefits of estrogen (E). The aim of this study was to investigate whether medroxyprogesterone acetate (MPA) modifies the protective effect of E in experimental ischemia-reperfusion (IR) injury in vivo and in vitro in the rat. DESIGN: Ovariectomized female Wistar rats (250-280 g, n = 61) received E, MPA, E and MPA, or placebo subcutaneously...
January 2006: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/16579936/endothelin-and-platelet-activating-factor-significance-in-the-pathophysiology-of-ischemia-reperfusion-induced-fetal-growth-restriction-in-the-rat
#20
Larry G Thaete, Mark G Neerhof
OBJECTIVE: The objective of the study was to evaluate the role of endothelin-1 and platelet-activating factor in ischemia/reperfusion-induced fetal growth restriction in the rat. STUDY DESIGN: On day 17 of gestation, the right uterine and ovarian arteries were occluded for 30 minutes in experimental but not sham-operated rats. All rats received endothelin receptor A antagonist, A-127722 (10 mg/kg per day), platelet-activating factor antagonist, WEB-2086 (1 mg/kg), or vehicle...
May 2006: American Journal of Obstetrics and Gynecology
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