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Endometrial immunology

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https://www.readbyqxmd.com/read/28803166/advanced-age-in-mares-affects-endometrial-secretion-of-arachidonic-acid-metabolites-during-equine-subclinical-endometritis
#1
Marta J Siemieniuch, Katarzyna Gajos, Roland Kozdrowski, Marcin Nowak
Even if mares continue to breed up to an advanced age, in aging mares reproductive failure is quite common. Subclinical endometritis, which occurs more often in aging mares than in younger counterparts, may cause prolongation or shortening of the inter-estrus period or the corpus luteum lifespan. We hypothesized that during subclinical endometritis the secretion of selected arachidonic acid metabolites may differ in aging mares compared to younger females. To verify this thesis, ex vivo organ cultures of endometrium were established with subsequent measurements of concentrations of prostaglandin E2 (PGE2), 6-keto-PGF1α and both leukotrienes (LTs), LTB4 and LTC4 in the culture supernatants...
July 29, 2017: Theriogenology
https://www.readbyqxmd.com/read/28735887/effect-of-pyrethroids-on-female-genital-system-review
#2
REVIEW
Elena Marettova, Milan Maretta, Jaroslav Legáth
Pyrethroids have been associated with a range of toxicological effects on various organs in animals.Recent animal studies suggest that neurodevelopmental, reproductive, and immunological effects may result following exposure to some pyrethroids at levels below those that induce overt signs of neurotoxicity. A variety of pyrethroids and their metabolites have the potential to affect the reproductive system. Dose-dependent effects on reproduction are associated with exposure across pyrethroid types. In mammals, permethrin and tetramethrin and cypermethrin have been found to be associated with adverse effects at high doses...
July 16, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28681517/increased-expression-of-resistin-in-ectopic-endometrial-tissue-of-women-with-endometriosis
#3
Yoon Kyung Oh, Young Ran Ha, Kyong Wook Yi, Hyun Tae Park, Jung-Ho Shin, Tak Kim, Jun-Young Hur
PROBLEM: Inflammation is a key process in the establishment and progression of endometriosis. Resistin, an adipocytokine, has biological properties linked to immunologic functions, but its role in endometriosis is unclear. METHOD OF STUDY: Resistin gene expression was examined in eutopic and ectopic endometrial tissues from women with (n=25) or without (n=25) endometriosis. Resistin mRNA and protein levels were determined in endometrial tissue using quantitative real-time reverse transcription PCR and Western blotting, following adipokine profiling arrays...
July 6, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28654900/specific-microrna-library-of-ifn-%C3%AF-on-bovine-endometrial-epithelial-cells
#4
Haichong Wu, Tao Zhang, Xiaofei Ma, Kangfeng Jiang, Gan Zhao, Changwei Qiu, Ganzhen Deng
IFN-τ is specifically secreted by the conceptus in ruminants during early pregnancy, and it plays a vital role in the immunological function of pregnancy. However, its mechanism involving microRNA (miRNA) is still not well understood. Deep sequencing was used to explore the specific miRNA library of IFN-τ on bovine endometrial epithelial cells (bEECs). The results showed that 574 known bovine miRNAs and 109 novel miRNAs were identified. We found 74 differentially expressed miRNAs, including 30 commonly expressed miRNAs in the experiment...
June 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28571791/unus-pro-omnibus-omnes-pro-uno-a-novel-evidence-based-unifying-theory-for-the-pathogenesis-of-endometriosis
#5
Antonio Simone Laganà, Salvatore Giovanni Vitale, Francesca Maria Salmeri, Onofrio Triolo, Helena Ban Frangež, Eda Vrtačnik-Bokal, Lily Stojanovska, Vasso Apostolopoulos, Roberta Granese, Vincenza Sofo
The theory of retrograde menstruation as aetiopathogenesis of endometriosis formulated by John Sampson in 1927 shows clear shortcomings: this does not explain why retrograde menstruation is a physiological process that affects 90% of women, while endometriosis occurs in only 10% of cases; it also does not explain the endometriotic foci distant from the pelvis, nor explains the cases of endometriosis in male patients. The immunological alterations of the peritoneal fluid explains the effects of disease, such as the inhibition of the physiological processes of cytolysis, but does not explain the cause...
June 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28523429/kir-lilrb-and-their-ligands-genes-as-potential-biomarkers-in-recurrent-implantation-failure
#6
REVIEW
Izabela Nowak, Karolina Wilczyńska, Jacek R Wilczyński, Andrzej Malinowski, Paweł Radwan, Michał Radwan, Piotr Kuśnierczyk
Reproductive failure in humans is a very important social and economic problem, because nowadays women decide to conceive later in life and delay motherhood. Unfortunately, with increasing age they have less chance for natural fertilization and maintenance of pregnancy. Many of them need assisted reproductive technology. Approximately 10% of women after in vitro fertilization-embryo transfers experience recurrent implantation failure (RIF). Multiple factors may contribute to RIF, including oocyte and sperm quality, parental chromosomal anomalies, genetic or metabolic abnormalities of the embryo, poor uterine receptivity, immunological disturbances in the implantation site, and some gynecologic pathologies such as endometriosis, uterine fibroids, hydrosalpinx and endometrial polyps...
May 18, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28501364/immune-modulation-treatments-where-is%C3%A2-the-evidence
#7
REVIEW
Malene Meisner Hviid, Nick Macklon
While advances in assisted reproductive techniques have been substantial, failure of the apparently viable embryo to implant remains a source of distress and frustration to patients and specialists alike. The unique maternal immunological response to the embryo and the notion that defects in early placentation underlie the great complications of pregnancy have focused attention on the therapeutic potential of peri-implantation immunomodulation. On the face of it, the rationale for this approach is very attractive...
June 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28476234/clinical-implications-for-germline-pten-spectrum-disorders
#8
REVIEW
Joanne Ngeow, Kaitlin Sesock, Charis Eng
Patients with PTEN hamartoma tumor syndrome (PHTS) may present to a variety of different subspecialties with benign and malignant clinical features. They have increased lifetime risks of breast, endometrial, thyroid, renal, and colon cancers, as well as neurodevelopmental disorders such as autism spectrum disorder. Patients and affected family members can be offered gene-directed surveillance and management. Patients who are unaffected can be spared unnecessary investigations. With longitudinal follow-up, we are likely to identify other non-cancer manifestations associated with PHTS such as metabolic, immunologic, and neurologic features...
June 2017: Endocrinology and Metabolism Clinics of North America
https://www.readbyqxmd.com/read/28344870/immunological-profiling-of-molecularly-classified-high-risk-endometrial-cancers-identifies-pole-mutant-and-microsatellite-unstable-carcinomas-as-candidates-for-checkpoint-inhibition
#9
Florine A Eggink, Inge C Van Gool, Alexandra Leary, Pamela M Pollock, Emma J Crosbie, Linda Mileshkin, Ekaterina S Jordanova, Julien Adam, Luke Freeman-Mills, David N Church, Carien L Creutzberg, Marco De Bruyn, Hans W Nijman, Tjalling Bosse
High-risk endometrial cancer (EC) is an aggressive disease for which new therapeutic options are needed. Aims of this study were to validate the enhanced immune response in highly mutated ECs and to explore immune profiles in other EC subgroups. We evaluated immune infiltration in 116 high-risk ECs from the TransPORTEC consortium, previously classified into four molecular subtypes: (i) ultramutated POLE exonuclease domain-mutant ECs (POLE-mutant); (ii) hypermutated microsatellite unstable (MSI); (iii) p53-mutant; and (iv) no specific molecular profile (NSMP)...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28271702/update-on-endometriosis-pathogenesis
#10
Adam Czyzyk, Agnieszka Podfigurna, Anna Szeliga, Blazej Meczekalski
Endometriosis is a chronic, inflammatory, condition of high incidence and serious reproductive and general health consequences. Understanding the pathogenesis of endometriosis is crucial for proper diagnostic and ordering the most effective treatment. Even though there is a large body of data regarding this pathology our understanding of the pathogenesis of this disease remains incomplete. The aim of this review is to summarize contemporary data regarding pathogenesis of endometriosis. Current data regarding endometrial origin, metaplastic and Mullerian embryonic rests theory will be reviewed here...
March 7, 2017: Minerva Ginecologica
https://www.readbyqxmd.com/read/28271701/an-update-on-the-biological-markers-of-endometriosis
#11
Razvan Socolov, Demetra Socolov, Allia Sindilar, Ioana Pavaleanu
BACKGROUND: Endometriosis is a disease that affects 7-10% of reproductive-age women. When its diagnosis is delayed, its management becomes more difficult. Both for earlier detection and for therapeutic follow-up, discovering noninvasive biological markers with good specificity for this disease is a promising aspect of its research. We analyzed the recent data in the literature regarding these markers to determine which were worth following. MATERIALS AND METHODS: This literature review focused on medical data reported in the last 6 years (2011-2016)...
March 7, 2017: Minerva Ginecologica
https://www.readbyqxmd.com/read/28251956/-comparison-of-the-expression-profile-of-surface-molecular-markers-on-mesenchymal-stromal-cell-cultures-isolated-from-human-endometrium-and-umbilical-cord
#12
COMPARATIVE STUDY
A Yu Lupatov, R Yu Saryglar, V D Chuprynin, S V Pavlovich, K N Yarygin
Endometrial mesenchymal stromal cells (eMSCs), along with mesenchymal stromal cells (MSCs) isolated from other tissues, are promising for use in regenerative medicine. The benefits of eMSCs include their presence in adults, simplicity of isolation, high proliferative and differentiation capacity. In this study, we have employed the flow cytometry technique to assess expression of 28 molecular markers on the surface of two eMSCs cultures. The culture of MSCs isolated from Wharton's jelly of the umbilical cord (uMSCs) was used as a reference, because uMSCs were studied in details earlier and demonstrated their effectiveness in vivo...
January 2017: Biomedit︠s︡inskai︠a︡ Khimii︠a︡
https://www.readbyqxmd.com/read/28242004/expression-of-toll-like-receptors-2-4-and-6-in-different-cell-populations-of-the-equine-endometrium
#13
Sandra Schöniger, Hilke Gräfe, Heinz-Adolf Schoon
Subfertility in mares is mainly caused by endometrial diseases. Alterations of Toll-like receptors (TLRs) are associated with endometrial disorders in women. This study investigated TLRs 2, 4 and 6 in the equine endometrium. Endometria of 21 mares were examined by histology, PCR and immunohistochemistry. Tissues from 2 mares were considered normal. The remaining showed endometritis, endometrosis and/or angiosclerosis. TLRs 2, 4 and 6 were expressed as transcripts and proteins in all endometria. Immunohistochemistry detected TLRs 2, 4 and 6 in mast cells, luminal and glandular epithelial cells, stromal cells, endothelia, vascular smooth muscle and/or inflammatory cells...
March 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28112260/an-altered-endometrial-cd8-tissue-resident-memory-t-cell-population-in-recurrent-miscarriage
#14
J H Southcombe, G Mounce, K McGee, A Elghajiji, J Brosens, S Quenby, T Child, I Granne
When trying to conceive 1% of couples have recurrent miscarriages, defined as three or more consecutive pregnancy losses. This is not accounted for by the known incidence of chromosomal aneuploidy in miscarriage, and it has been suggested that there is an immunological aetiology. The endometrial mucosa is populated by a variety of immune cells which in addition to providing host pathogen immunity must facilitate pregnancy. Here we characterise the endometrial CD8-T cell population during the embryonic window of implantation and find that the majority of cells are tissue resident memory T cells with high levels of CD69 and CD103 expression, proteins that prevent cells egress...
January 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28108942/compartmentalized-culture-of-perivascular-stroma-and-endothelial-cells-in-a-microfluidic-model-of-the-human-endometrium
#15
Juan S Gnecco, Virginia Pensabene, David J Li, Tianbing Ding, Elliot E Hui, Kaylon L Bruner-Tran, Kevin G Osteen
The endometrium is the inner lining of the uterus. Following specific cyclic hormonal stimulation, endometrial stromal fibroblasts (stroma) and vascular endothelial cells exhibit morphological and biochemical changes to support embryo implantation and regulate vascular function, respectively. Herein, we integrated a resin-based porous membrane in a dual chamber microfluidic device in polydimethylsiloxane that allows long term in vitro co-culture of human endometrial stromal and endothelial cells. This transparent, 2-μm porous membrane separates the two chambers, allows for the diffusion of small molecules and enables high resolution bright field and fluorescent imaging...
July 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28051087/effects-of-depot-medroxyprogesterone-acetate-on-the-immune-microenvironment-of-the-human-cervix-and-endometrium-implications-for-hiv-susceptibility
#16
K K Smith-McCune, J F Hilton, U Shanmugasundaram, J W Critchfield, R M Greenblatt, D Seidman, S Averbach, L C Giudice, B L Shacklett
Depot-medroxyprogesterone acetate is a commonly used injectable contraceptive that has been associated with an increased risk of HIV acquisition. This study compares effects of depot-medroxyprogesterone acetate on immune parameters from several upper reproductive tract compartments relevant to HIV-1 susceptibility in repetitive samples from 15 depot-medroxyprogesterone acetate users and 27 women not on hormonal contraceptives. Compared with samples from unexposed women in the mid-luteal phase, depot-medroxyprogesterone acetate use was associated with: increased endocervical concentrations of MCP1 and IFNalpha2; decreased endocervical concentrations of IL1beta and IL6; increased proportions of endometrial CD4+ and CD8+ cells expressing the activation marker HLADR; increased density of endometrial macrophages; and decreased density of endometrial regulatory T cells...
September 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/27915039/uterine-immune-profiling-for-increasing-live-birth-rate-a-one-to-one-matched-cohort-study
#17
Nathalie Lédée, Laura Prat-Ellenberg, Lucie Chevrier, Richard Balet, Cynthia Simon, Clarisse Lenoble, Elie El Irani, Dominique Bouret, Guy Cassuto, Dominique Vitoux, Katia Vezmar, Armand Bensussan, Gérard Chaouat, Marie Petitbarat
BACKGROUND: Embryo implantation remains the main limiting factor in IVF/ICSI program. Endometrial immune remodeling events begin before implantation and are a vital process for pregnancy, preparing future maternal immune tolerance and regulating the placentation process. METHODS: Between 2012 and 2014, 193 patients (analyzed group) enrolled in our IVF program benefitted of an endometrial immune profiling to determine if their uterus was immunologically ready to accept an embryo and, if not, the specific immune mechanisms involved...
November 24, 2016: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/27865908/oleic-acid-promotes-the-expression-of-neural-markers-in-differentiated-human-endometrial-stem-cells
#18
Maryam Ali Mohammadie Kojour, Somayeh Ebrahimi-Barough, Homa Mohseni Kouchesfehani, Hanieh Jalali, Mohammah Hosein Karbalaie Ebrahim
Variety of neurodegenerative diseases in humans are caused by loss of cells along with loss of function and disability. Cell replacement therapy is a potential strategy to cure neurodegenerative diseases. Mesenchymal stem cells are pluripotent non-hematopoietic cells that can be isolated from numerous tissues. Human endometrial-derived stem cell (hEnSC) are the abundant and easy available source with no immunological response, for cell replacement therapy. In the nervous system, where fatty acids are found in huge amounts, they participate in its development and maintenance throughout life...
January 2017: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/27852036/interim-analysis-of-a-phase-i-iia-trial-assessing-e39-gm-csf-a-folate-binding-protein-vaccine-to-prevent-recurrence-in-ovarian-and-endometrial-cancer-patients
#19
Doreen O Jackson, Kevin Byrd, Timothy J Vreeland, Diane F Hale, Garth S Herbert, Julia M Greene, Erika J Schneble, John S Berry, Alfred F Trappey, G T Clifton, Mark O Hardin, Jonathan Martin, John C Elkas, Thomas P Conrads, Kathleen M Darcy, Chad A Hamilton, George L Maxwell, George E Peoples
BACKGROUND: Folate binding protein(FBP) is an immunogenic protein over-expressed in endometrial(EC) and ovarian cancer(OC). We are conducting a phase I/IIa trial of E39 (GALE 301)+GM-CSF, an HLA-A2-restricted, FBP-derived peptide vaccine to prevent recurrences in disease-free EC and OC patients. This interim analysis summarizes toxicity, immunologic responses, and clinical outcomes to date. METHODS: HLA-A2+ patients were vaccinated(VG), and HLA-A2- or -A2+ patients were followed as controls(CG)...
February 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/27819791/-effectiveness-of-a-rapid-response-team-rrt-in-a-case-of-ruptured-ectopic-pregnancy
#20
José Miguel Campechano-López, María Lourdes Carranza-Bernal, Guillermina Juanico-Morales, María Rayo Reyes-Gil
BACKGROUND: An ectopic pregnancy happens when a fertilized egg attaches somewhere outside the endometrial surface. This sort of pregnancy has an estimated incidence of 1.6 to 2 each 100 births. The main objective was to expose the effective answer of a Rapid Response Team in a case of ruptured cervical ectopic pregnancy. We also describe a clinical case of this sort of pregnancy. CLINICAL CASE: 37-year-old female with a two-month history of amenorrhea. The patient entered the Labor & Delivery department with hypovolemic shock secondary to vaginal bleeding...
November 2016: Revista Médica del Instituto Mexicano del Seguro Social
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