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https://www.readbyqxmd.com/read/28884736/-the-application-of-low-frequency-ultrasound-for-the-comprehensive-treatment-and-rehabilitation-of-the-patients-presenting-with-chronic-endometritis
#1
Yu V Kovaleva
The incidence of chronic endometritis remains rather high despite considerable progress in reproductive medicine including the advent of the new methods for assisted reproduction; the pregnancy rate after the treatment of this condition is still unacceptably low. It implies the necessity of the careful preparation of endometrium for the implantation of the embryo especially in women with a history of unsuccessful outcomes of the IVF treatment. It calls for the development of the efficient therapeutic modalities for the management of chronic endometritis and restoration of the normal reproductive function; their introduction into the therapeutic algorithm remains equally relevant...
2017: Voprosy Kurortologii, Fizioterapii, i Lechebnoĭ Fizicheskoĭ Kultury
https://www.readbyqxmd.com/read/28868248/the-window-of-implantation-is-closed-by-estrogen-via-insulin-like-growth-factor-1-pathway
#2
Ryosuke Kobayashi, Jumpei Terakawa, Tsutomu Omatsu, Yupadee Hengjan, Tetsuya Mizutani, Yasushige Ohmori, Eiichi Hondo
BACKGROUND: The opening and closing of the implantation window is important for successful pregnancy in eutherians. The recent study demonstrated that the window of uterine receptivity was prepared by the sole action of progesterone in mice, but the mechanism to close the window remained to be elucidated. METHODS: The pregnant mice were ovariectomized on the evening on the third day of pregnancy with a single injection of medroxyprogesterone acetate to induce delayed implantation (DI)...
April 2017: Journal of Reproduction & Infertility
https://www.readbyqxmd.com/read/28864009/negative-uterine-asynchrony-retards-early-equine-conceptus-development-and-upregulation-of-placental-imprinted-genes
#3
Charlotte Gibson, Marta de Ruijter-Villani, Tom A E Stout
INTRODUCTION: Placental imprinted genes appear to be sensitive indicators of an inappropriate pre-implantation environment. This study examined the effects of negative uterine asynchrony after embryo transfer (ET) on early horse embryo development, and yolk-sac membrane expression of DNA methyltransferases (DNMTs) and equine specific placental imprinted genes. METHODS: Day 8 embryos were transferred to recipient mares on day 8 (synchronous) or day 3 (asynchronous) after ovulation, and conceptuses were recovered 6 or 11 days later (day 14 or 19 of development)...
September 2017: Placenta
https://www.readbyqxmd.com/read/28859287/analysis-of-cysteine-x-cysteine-motif-chemokine-ligands-9-10-and-11-their-receptor-cxcr3-and-their-possible-role-on-the-recruitment-of-immune-cells-at-the-maternal-conceptus-interface-in-pigs
#4
Jisoo Han, Min Jeong Gu, Inkyu Yoo, Yohan Choi, Hwanhee Jang, Minjeong Kim, Cheol-Heui Yun, Hakhyun Ka
Chemokines play critical roles in the establishment and maintenance of pregnancy in animals. Cysteine-X-cysteine motif chemokine ligand 9 (CXCL9), CXCL10, and CXCL11 are involved in recruiting immune cells by binding to their shared receptor, CXC receptor 3 (CXCR3), in a variety of tissues. This study examined the expression and regulation of chemokines CXCL9, CXCL10, and CXCL11, their receptor CXCR3, and their role at the maternal-conceptus interface in pigs. The endometrium expressed CXCL9, CXCL10, CXCL11, and CXCR3 stage specifically during pregnancy, with the greatest abundance on Day 15 of pregnancy...
July 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28857630/assessment-of-mtor-pathway-molecules-during-implantation-in-rats
#5
G Ekizceli, S Inan, G Oktem, E Onur, K Ozbilgin
Mammalian target of rapamycin (mTOR) is a member of the PI3K/Akt/mTOR signaling pathway that participates in cell growth, proliferation, protein synthesis, transcription, angiogenesis, apoptosis and autophagy. We investigated the role of mTOR and other signaling molecules in the rat uterus during implantation. Female pregnant rats were divided into three groups: embryonic days (ED) 4.5, 5.5 and 6.5 according to vaginal smears. Immunohistochemical staining of mTORC1, mTORC2, IGF1, PI3K, pAkt1/2/3, ERK1 and pERK1/2 was performed on formalin fixed, paraffin embedded uterine tissue samples...
August 31, 2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/28840465/gold-and-female-reproductive-organs-an-ultrastructural-study
#6
Nedra Badri, Maroua Mhamdi, Ridha Ben Ali, Horea Matei, Walid-Habib Tekaya, Adrian Florea, Samira Maghraoui, Leila Tekaya
Gold, a heavy yellow-colored metal, is usually found in nature as a metallic element or as salts. This noble metal historically had a reputation as an anti-inflammatory medicine for rheumatoid arthritis, a nervine, and a remedy for nervous disorders, as well as a potential anticancer agent. It has also been used as component in dental restorations and in implant materials. The present study was undertaken to point out histological and ultrastructural effects of gold, administered by intraperitoneal route, in pregnant female reproductive organs (ovary and uterus), in order to clarify its side effects on the reproductive function...
August 24, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28827707/juxtacrine-activity-of-estrogen-receptor-%C3%AE-in-uterine-stromal-cells-is-necessary-for-estrogen-induced-epithelial-cell-proliferation
#7
Wipawee Winuthayanon, Sydney L Lierz, Karena C Delarosa, Skylar R Sampels, Lauren J Donoghue, Sylvia C Hewitt, Kenneth S Korach
Aberrant regulation of uterine cell growth can lead to endometrial cancer and infertility. To understand the molecular mechanisms of estrogen-induced uterine cell growth, we removed the estrogen receptor α (Esr1) from mouse uterine stromal cells, where the embryo is implanted during pregnancy. Without ESR1 in neighboring stroma cells, epithelial cells that line the inside of the uterus are unable to grow due to a lack of growth factors secreted from adjacent stromal cells. Moreover, loss of stromal ESR1 caused mice to deliver fewer pups due in part due to inability of some embryos to implant in the uterus, indicating that stromal ESR1 is crucial for uterine cell growth and pregnancy...
August 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28823068/stress-affects-surface-glycoconjugates-of-the-rat-endometrium-at-the-time-of-implantation
#8
Elham Aliabadi, Zohreh Makoolati, Tahereh Talaei-Khozani, Fakhreddin Mesbah Ardekani
One of the treatments to infertility is In Vitro Fertilization (IVF). In the course of IVF, fertilization rate can be improved through stress reduction. Probably one of the causes of low outcome of IVF is changes in uterine glycoconjugates that are first site of contact between blastocyst and uterus, due to stress, e.g., stress of injection. Thus, the study of the injectional stress effects on implantation period is very important to improve the outcome of IVF. Sixteen mature female rats were divided to experimental and control groups...
August 19, 2017: Glycoconjugate Journal
https://www.readbyqxmd.com/read/28813370/chronic-systemic-toxicity-study-of-copper-intrauterine-devices-in-female-wistar-rats
#9
Xia Zhao, Qian Liu, Haixiang Sun, Yali Hu, Zhaoxu Wang
BACKGROUND The aim of this study was to evaluate the chronic systemic and local toxicity of a copper intrauterine device in a rat model. MATERIAL AND METHODS Cu-IUD fragments were inserted into the uterine horns of female Wistar rats for 26 weeks (equivalent 15.42-17.33 years in humans). We tested copper at 20, 40, and 60 times the clinical dosages to study copper toxicity under severe conditions. Classic chronic systemic toxicity evaluations, including body weight, hematology, organ coefficient, and tissue reactions, were performed...
August 16, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28797703/preimplantation-genetic-diagnosis-of-x-linked-charcot-marie-tooth-disease-by-indirect-linkage-analysis
#10
Irena Borgulová, Martina Putzová, Inna Soldatova, David Stejskal
OBJECTIVE: To present methodical approach of preimplantation genetic diagnosis (PGD) as an option for an unaffected pregnancy in reproductive-age couples who have a genetic risk of the X-linked dominant peripheral neuropathy Charcot-Marie-Tooth type 1 disease. PATIENTS AND METHODS: We performed PGD of X-linked Charcot-Marie-Tooth type 1 disease using haplotyping/indirect linkage analysis, when during analysis we reach to exclude embryos that carry a high-risk haplotype linked to the causal mutation p...
August 7, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/28791836/in-vivo-effects-of-curcumin-and-deferoxamine-in-experimental-endometriosis
#11
Gulnur Kizilay, Yesim Hulya Uz, Gulay Seren, Enis Ulucam, Ali Yilmaz, Ziya Cukur, Umit Ali Kayisli
BACKGROUND: Endometriosis is one of the most common chronic gynecological diseases. OBJECTIVES: The aim of the study was to examine the effects of curcumin and/or deferoxamine on cell proliferation in a rat model of endometriosis. MATERIAL AND METHODS: Thirty female 12-week-old albino Wistar rats, weighing 200-250 g, were used in this study. All the rats underwent ovariectomy and 0.1-mg β-estradiol 17-valerate pellets were placed intraperitoneally...
March 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28791050/effect-of-increased-endometrial-thickness-and-implantation-rate-by-granulocyte-colony-stimulating-factor-on-unresponsive-thin-endometrium-in-fresh-in-vitro-fertilization-cycles-a-randomized-clinical-trial
#12
Fatemeh Sarvi, Marjan Arabahmadi, Ashraf Alleyassin, Marzieh Aghahosseini, Marzieh Ghasemi
BACKGROUND: The correlation between endometrial thickness and receptivity has been mentioned in various studies. This study investigated the effect of granulocyte colony-stimulating factor in treating thin endometrium of infertile women who were chosen for in vitro fertilization in our infertility clinic in 2014 and 2015. METHODS: In this randomized clinical trial, 28 women who were chosen for in vitro fertilization and had endometrial thickness of less than 6 mm on the day of human chorionic gonadotropin (hCG) injection were included in the study...
2017: Obstetrics and Gynecology International
https://www.readbyqxmd.com/read/28780571/the-critical-role-of-uterine-cd31-as-a-post-progesterone-signal-in-early-pregnancy
#13
Seo-Ho Lee, Byung-Ju Kim, Uh-Hyun Kim
CD31 has been shown to play a role in endothelial cell migration and angiogenesis, which are critical to the formation and function of the endometrium and myometrium in uterine development during early pregnancy. However, the role of CD31 in uterine receptivity during blastocyst implantation is poorly understood. The pregnancy rate in CD31-/- female mice mated with CD31+/+ male mice was higher than that observed in CD31+/+ female mice mated with CD31+/+ male mice. During the receptive phase of implantation, uterine glands were more developed in CD31-/- mice than in CD31+/+ mice, and the uterine weights of CD31-/- mice were increased...
August 5, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28776178/protocols-for-rat-uterus-isolation-and-decellularization-applications-for-uterus-tissue-engineering-and-3d-cell-culturing
#14
Arvind Manikantan Padma, Tom Tristan Tiemann, Ahmed Baker Alshaikh, Randa Akouri, Min Jong Song, Mats Hellström
Sophisticated culturing conditions are required to grow cells in a three-dimensional (3D) environment. Cells then require a type of scaffold rich in proteins, growth factors, and signaling molecules that simulates their natural environment. Tissues from all species of animals have an organ-specific extracellular matrix (ECM) structure that plays a key role in cell proliferation and migration. Hence, the scaffold composition plays a significant role for any successful 3D cell culturing system. We developed a whole rat uterus ECM scaffold by the perfusion of detergents and ionic solutions through the vascular system of an isolated normal rat uterus in a process termed "decellularization...
August 4, 2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28757524/a-novel-method-of-gene-transduction-to-the-murine-endometrium-using-in-vivo-electroporation
#15
Ryosuke Kobayashi, Kanako Endo, Yasushige Ohmori, Eiichi Hondo
To investigate the molecular pathways involved in successful embryo implantation in mammals, we developed a novel method for gene transduction into the murine endometrium using in vivo electroporation. Plasmid DNA with an enhanced green fluorescence protein (EGFP) gene was injected into the uterine cavity of non-pregnant female mice, and electrical pulses were subsequently applied to the uterine horn using plate electrodes. EGFP expression was found only in the uterine luminal epithelium (LE), but not in the stroma...
July 31, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28755912/examination-of-pathways-involved-in-leukemia-inhibitory-factor-lif-induced-cell-growth-arrest-using-label-free-proteomics-approach
#16
Syed Azmal Ali, Gurjeet Kaur, Jai Kumar Kaushik, Dhruba Malakar, Ashok Kumar Mohanty, Sudarshan Kumar
Leukemia inhibitory factor (LIF) is a multifunctional highly glycosylated protein, synthesized and secreted in various body tissues. Besides the abundance in multiple organs, the molecular mechanism underlying the LIF interactions for cell survival and polarity is poorly understood. In the present study, high-resolution LC-MS/MS based LFQ approach identified 2083 proteins with the overall PSM as 16,032. This proteomics data reviles that LIF promotes the AKT-mTOR signaling pathway. It induces cell growth arrest by an intracellular pathways loop to increase the half-life of the cell...
July 26, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28752711/-establishment-of-mouse-endometrial-injury-model-by-curettage-or-coagulation
#17
Wang Yanpeng, Huang Qiongxiao, X U Sheng, Shu Jing
Objective: To establish mouse endometrial injury model by curettage or coagulation. Methods: Female ICR mice were randomly allocated into 2 groups: in curettage group, a blunt 20G needle was inserted in one uterine horn with 0.05 megapascals negative pressure; in coagulation group, one uterine horn was coagulated using a monopolar electric needle with 0.5 watts power. In both groups the contra-lateral uterine horn was used as control. The morphological changes and thickness of endometrium were evaluated 1 week after operation...
March 25, 2017: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/28747528/embryo-implantation-evolved-from-an-ancestral-inflammatory-attachment-reaction
#18
Oliver W Griffith, Arun R Chavan, Stella Protopapas, Jamie Maziarz, Roberto Romero, Gunter P Wagner
The molecular changes that support implantation in eutherian mammals are necessary to establish pregnancy. In marsupials, pregnancy is relatively short, and although a placenta does form, it is present for only a few days before parturition. However, morphological changes in the uterus of marsupials at term mimic those that occur during implantation in humans and mice. We investigated the molecular similarity between term pregnancy in the marsupials and implantation in eutherian mammals using the gray short-tailed opossum (Monodelphis domestica) as a model...
August 8, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28743542/the-endocannabinoid-system-expression-in-the-female-reproductive-tract-is-modulated-by-estrogen
#19
J Maia, M Almada, A Silva, G Correia-da-Silva, N Teixeira, S I Sá, B M Fonseca
The endocannabinoid system (ECS) is involved in several physiological events that resulted in a growing interest in its modulation. Moreover, the uterine levels of anandamide (AEA), the major endocannabinoid, must be tightly regulated to create proper embryo implantation conditions. However, there are no evidences about the regulation of AEA in uterus by estrogen. Thus, the aim of this study is to elucidate whether estradiol benzoate (EB) and tamoxifen (TAM) administration to ovariectomized (OVX) rats can induce changes in the expression of cannabinoid receptors and AEA-metabolic enzymes in uterus by evaluating gene transcription and protein levels by qPCR, Western blot and immunohistochemistry...
July 22, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28735624/the-effect-of-prostaglandin-e2-receptor-ptger2-activation-on-growth-factor-expression-and-cell-proliferation-in-bovine-endometrial-explants
#20
Shuangyi Zhang, Bo Liu, Wei Mao, Qianru Li, Changqi Fu, Nan Zhang, Ying Zhang, Long Gao, Yuan Shen, Jinshan Cao
The domestic animal endometrium undergoes regular periods of regeneration and degeneration during cycles of oestrus and dioestrus. If blastocyst implantation occurs in the uterus, the endometrium will prepare for pregnancy by changing its pattern of development to build a connection with the embryo to nourish it. Prostaglandin E2 (PGE2) secretion synchronized with endometrial growth in these processes and could be involved in endometrial growth. One of the PGE2 receptors (PTGER2) is present in endometrium and its increased expression accompanies with endometrial growth in above processes...
July 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
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