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Uterus transplantation

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https://www.readbyqxmd.com/read/28821413/uterine-transplantation-surgical-innovation-in-the-treatment-of-uterine-factor-infertility
#1
REVIEW
R Flyckt, A Davis, R Farrell, S Zimberg, A Tzakis, T Falcone
Uterine factor infertility (UFI) is a condition that affects thousands of women and is estimated to have a prevalence as high as one in five hundred reproductive-aged women. A wide range of circumstances can lead to UFI and include women with congenital absence of a uterus (Mayer Rokitansky Kuster Hauser or MRKH syndrome), women who have undergone iatrogenic removal of the uterus, or women who have uteri that are in situ but have been damaged by infection or surgical instrumentation. There have been 17 published reports of human uterine transplantation in the world...
August 15, 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28812977/uterus-transplants-in-india-yawning-regulatory-gaps
#2
EDITORIAL
Sandhya Srinivasan
No abstract text is available yet for this article.
July 2017: Indian Journal of Medical Ethics
https://www.readbyqxmd.com/read/28804623/recent-advances-in-the-molecular-mechanisms-of-mayer-rokitansky-k%C3%A3-ster-hauser-syndrome
#3
Keiko Watanabe, Yusuke Kobayashi, Kouji Banno, Yusuke Matoba, Haruko Kunitomi, Kanako Nakamura, Masataka Adachi, Kiyoko Umene, Iori Kisu, Eiichiro Tominaga, Daisuke Aoki
Mayer-Rokitansky-Küster-Hauser syndrome (MRKHS) is a disease caused by congenital absence of the uterus and two-thirds of the upper vagina. The pathogenic mechanism of MRKHS may involve gene abnormalities, and there are various case reports associating MRKHS with the Wnt family member 4 (Wnt4) mutation. Analysis of genes mapped to regions in which deletion and duplication are frequently detected in patients with MRKHS has shown involvement of LIM homeobox 1 (LHX1), HNF1 homeobox B (HNF1B) and T-box 6 (TBX6)...
August 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28782281/systemic-administration-of-bone-marrow-derived-cells-leads-to-better-uterine-engraftment-than-use-of-uterine-derived-cells-or-local-injection
#4
Ying Liu, Reshef Tal, Nicola Pluchino, Ramanaiah Mamillapalli, Hugh S Taylor
Stem cells are recruited to the uterus where they differentiate into endometrial cells and have been suggested as potential therapy for uterine injury such as Asherman's syndrome. However, it is unknown whether local intrauterine injection may result in better stem cell engraftment of the uterus compared with systemic administration, and whether uterine-derived cells (UDCs) may confer an advantage over BM-derived cells (BMDCs). Mice underwent local injury to a single uterine horn. Green fluorescent protein (GFP)-expressing BMDCs, UDCs or saline (control) were injected either intravenously or locally (uterine lumen) into wild-type recipients...
August 7, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28776178/protocols-for-rat-uterus-isolation-and-decellularization-applications-for-uterus-tissue-engineering-and-3d-cell-culturing
#5
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/28697917/the-future-of-human-uterine-transplantation-can-minimally-invasive-techniques-provide-a-uterus-suitable-for-transplant
#6
EDITORIAL
Tommaso Falcone, Ruth M Farrell, Rebecca Flyckt
No abstract text is available yet for this article.
July 8, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28683576/womb-transplants-with-live-births-an-update-and-the-future
#7
Mats Brännström
Absolute uterine factor infertility, with a uterine absence or presence of a nonfunctional uterus, has during the last decades been the only remaining, major group of female infertility. Uterus transplantation (UTx) has now emerged as the first therapy for these women that have traditionally been regarded as unconditionally infertile. Areas covered: This review summarizes the research preparations in several experimental animal species that paved the way for the clinical introduction of UTx. The article also describes the human UTx attempts that have been reported up until today and the several live births that have occurred after the initial UTx baby was born in 2014...
July 6, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/28627595/elevated-expression-of-transient-receptor-potential-vanilloid-type%C3%A2-1-in-dorsal-root-ganglia-of-rats-with-endometriosis
#8
Yu-Ling Lian, Ming-Jun Cheng, Xian-Xia Zhang, Li Wang
Pain is the most pronounced complaint of women with endometriosis, however the underlying mechanism is still poorly understood. In the present study, the authors evaluate the effect of transient receptor potential vanilloid type 1 (TRPV1) of dorsal root ganglia (DRG) on endometriosis-associated pain. A total of 36 SD rats were randomly divided into a sham group (n=9) and a Model group (n=27), accepted auto‑transplanted pieces of fat or uterus to the pelvic cavity. At 4 weeks, the Model group was randomly subdivided into the following groups: ENDO group (no treatment, n=9), BCTC group (Model + BCTC, an antagonist of TRPV1, n=9), Vehicle group (Model + cyclodextrin, the vehicle of BCTC, n=9)...
August 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28585775/the-roles-of-the-pd-1-pd-l1-pathway-at-immunologically-privileged-sites
#9
Li-Ling Wang, Zhi-Hui Li, Xiao-Hui Hu, Kahinho P Muyayalo, Yong-Hong Zhang, Ai-Hua Liao
The PD-1/PD-L1 pathway plays a vital role in the maintenance of peripheral tolerance, promoting the development and function of regulatory T cells, and maintaining the quiescence of autoreactive T cells. Abnormalities in this inhibitory pathway are involved in the pathogenesis of some disorders such as tumours, autoimmune diseases, pregnancy complications, and transplantation rejection. Immune privilege represents a special immunological condition, where foreign antigens can be tolerated and do not elicit an immune response...
June 6, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28535402/uterus-tolerance-to-extended-cold-ischemic-storage-after-auto-transplantation-in-ewes
#10
Jérémy Tricard, Sébastien Ponsonnard, Yannick Tholance, Laura Mesturoux, Denis Lachatre, Claude Couquet, Faraj Terro, Catherine Yardin, Pierre Marquet, Alessandro Piccardo, Tristan Gauthier
OBJECTIVE: To assess how the uterus tolerates extended cold ischemic storage before auto-transplantation in ewes. STUDY DESIGN: Fourteen uterine auto-transplantations were performed in ewes from November 2014 to June 2015 at the Analysis and Research Laboratory of Limoges, France. The animals were divided into 2 groups: 7 after 3h of cold ischemia timeand 7 after 24h. Transplant was assessed ≥8days after transplantation. Histology and apoptosis analyses (TUNEL method and indirect immunohistochemistry of cleaved Caspase 3) were performed before uterus retrieval (control), after 90min following reperfusion and ≥8days after transplantation...
May 16, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28457377/ethical-issues-in-uterine-transplantation-psychological-implications-and-informed-consent
#11
C Petrini, S Gainotti, A Morresi, A Nanni Costa
Since 2000, 13 uterine transplantations (UTxs) have been performed in women with absolute uterine infertility factor (AUIF), from both living and deceased donors, in different transplantation centers worldwide. At present the birth of 4 children following UTx is documented by the literature, and a woman was having a second pregnancy in October 2015. Following these successes it is likely that the procedure will become part of normal healthcare practice, even though at the moment it is still experimental and, as such, requires careful attention...
May 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28434104/mullerian-dysgenesis-a-critical-review-of-the-literature
#12
REVIEW
Souzana Choussein, Dimitrios Nasioudis, Dimitrios Schizas, Konstantinos P Economopoulos
PURPOSE: To present an update of the genetic, clinical, diagnostic, and therapeutic aspects of Mayer-Rokitansky-Kuster-Hauser (MRKH) syndrome. METHODS: Studies were considered eligible if they have evaluated patients with MRKH syndrome. Eligible articles were identified by a search of MEDLINE bibliographical database from 1950 to August 2016. A purely descriptive approach was adopted concerning all outcomes examined by the individual studies. RESULTS: MRKH syndrome is defined as congenital aplasia of the upper vagina and impairment of uterine development in normal 46XX females...
June 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28432742/living-donor-uterus-transplantation-a-single-center-s-observations-and-lessons-learned-from-early-setbacks-to-technical-success
#13
G Testa, E C Koon, L Johannesson, G J McKenna, T Anthony, G B Klintmalm, R T Gunby, A M Warren, J M Putman, G dePrisco, J M Mitchell, K Wallis, M Olausson
Uterus transplantation is a vascularized composite allograft transplantation. It allows women who do not have a uterus to become pregnant and deliver a baby. In this paper, we analyze the first five cases of living donor uterus transplantation performed in the United States. The first three recipients lost their uterus grafts at days 14, 12, and 6, respectively, after transplant. Vascular complications, related to both inflow and outflow problems, were identified as the primary reason for the graft losses. Two recipients, at 6 and 3 mo, respectively, after transplant, have functioning grafts with regular menstrual cycles...
April 22, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28424230/a-quiet-revolution-in-organ-transplant-ethics
#14
Arthur Caplan, Duncan Purves
A quiet revolution is occurring in the field of transplantation. Traditionally, transplants have involved solid organs such as the kidney, heart and liver which are transplanted to prevent recipients from dying. Now transplants are being done of the face, hand, uterus, penis and larynx that aim at improving a recipient's quality of life. The shift away from saving lives to seeking to make them better requires a shift in the ethical thinking that has long formed the foundation of organ transplantation. The addition of new forms of transplants requires doctors, patients, regulators and the public to rethink the risk and benefit ratio represented by trade-offs between saving life, extending life and risking the loss of life to achieve improvements in the quality of life...
April 19, 2017: Journal of Medical Ethics
https://www.readbyqxmd.com/read/28420433/umbilical-cord-derived-mesenchymal-stem-cells-on-scaffolds-facilitate-collagen-degradation-via-upregulation-of-mmp-9-in-rat-uterine-scars
#15
Lu Xu, Lijun Ding, Lei Wang, Yun Cao, Hui Zhu, Jingjie Lu, Xin'an Li, Tianran Song, Yali Hu, Jianwu Dai
BACKGROUND: Severe injuries of the uterus may trigger uterine scar formation, ultimately leading to infertility or obstetrical complications. To date, few methods have adequately solved the problem of collagen deposition in uterine scars. Umbilical cord-derived mesenchymal stem cells (UC-MSCs) have shown great promise in clinical applications. The objective of this study was to investigate the effect of a scaffold/UC-MSCs construct on collagen degradation and functional regeneration in rat uterine scars following full-thickness excision of uterine walls...
April 18, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28395322/de-and-recellularization-of-the-pig-uterus-a-bioengineering-pilot-study%C3%A2
#16
Hannes Campo, Pedro M Baptista, Nuria López-Pérez, Amparo Faus, Irene Cervelló, Carlos Simón
Absolute uterine factor infertility, or the absence of a functional uterus, has a prevalence of 3%-5% in the general population. Despite the great strides being made in reproductive medicine, patients diagnosed with absolute uterine factor infertility remain untreatable. The only available solution has been gestational surrogacy, but recently the Brannström group presented a viable alternative by reporting the first successful live birth after uterus transplantation. Similar to other transplantations, this approach has inherent limitations such as the paucity of donor organs and the need for long-term immunosuppression...
January 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28390109/vascularized-composite-allograft-vca-donation-and-transplantation-a-survey-of-public-attitudes-in-the-united-states
#17
James R Rodrigue, David Tomich, Aaron Fleishman, Alexandra K Glazier
Vascularized composite allograft (VCA) transplantation has emerged as a groundbreaking surgical intervention to return identity and function following traumatic injury, congenital deformity, or disfigurement. While public attitudes toward traditional organ/tissue donation are favorable, little is known about attitudes toward VCA donation and transplantation. A survey was conducted of 1,485 U.S. residents in August 2016 to assess VCA donation attitudes. Participants also completed the Revised Health Care System Distrust Scale...
April 8, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28361801/uterus-transplants-and-their-ethical-implications
#18
Carlo Petrini, Assuntina Morresi
Early experiments in womb transplants have increased interest in the possibility of performing this procedure in women who have no womb, usually for congenital reasons. The present article describes past experiments and summarises the most relevant reference documents before indicating the key ethical implications involved in womb transplants.
January 2017: Annali Dell'Istituto Superiore di Sanità
https://www.readbyqxmd.com/read/28361724/sex-before-the-state-civic-sex-reproductive-innovations-and-gendered-parental-identity
#19
Timothy F Murphy
Certain changes in the way that states classify people by sex as well as certain reproductive innovations undercut the rationale for state identification of people as male or female in signifying gendered parental relationships to children. At present, people known to the state as men may be genetic mothers to their children; people known to the state as women may be genetic fathers to their children. Synthetic gametes would make it possible for transgender men to be genetically related to children as fathers and transgender women to be genetically related to children as mothers, even if they have otherwise relied on naturally-occurring gametes to be genetic mothers and genetic fathers of children respectively...
April 2017: Cambridge Quarterly of Healthcare Ethics: CQ: the International Journal of Healthcare Ethics Committees
https://www.readbyqxmd.com/read/28357688/uterus-transplantation-and-beyond
#20
REVIEW
Mats Brännström
Uterus transplantation is today the only available treatment for absolute uterine factor infertility which is caused by either congenital/surgical uterine absence or that a present uterus is non-functioning. Structured animal-based research, from rodents to nonhuman primates, was the scientific basis for a successful introduction of uterus transplantation as a clinical procedure. The patient groups for uterus transplantation, the preclinical research and data from the published human cases will be covered herein...
May 2017: Journal of Materials Science. Materials in Medicine
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