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Uterine transplantation

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https://www.readbyqxmd.com/read/28222080/patient-inspired-research-a-better-way-to-go
#1
(no author information available yet)
Recently, I attended a meeting of the Oncofertility Consortium and had one of those "a-ha" moments that change one's perspective in a very real way. A surgeon from Sweden was talking about uterus transplantations, and she described how these came about. She told a story about one of her colleagues, who was talking to a young woman who had cervical cancer and had a hysterectomy. The patient asked the physician if they could give her a "new" uterus so that one day she could have a biological child. The physician told her that was not possible and the patient responded, "Why not?" That prompted the physician to start a new field of research, uterine transplantation, that has had some early successes, as well as many failures...
March 1, 2017: Oncology Nursing Forum
https://www.readbyqxmd.com/read/28034338/bioengineering-strategies-to-treat-female-infertility
#2
Che-Ying Kuo, Hannah Baker, Melissa H Fries, James J Yoo, Peter C W Kim, John P Fisher
Bioengineering strategies have demonstrated enormous potential to treat female infertility as a result of chemotherapy, uterine injuries, fallopian tube occlusion, massive intrauterine adhesions, congenital uterine malformations, and hysterectomy. These strategies can be classified into two broad categories as follows: (i) Transplantation of fresh or cryopreserved organs into the host and (ii) tissue engineering approaches that utilize a combination of cells, growth factors, and biomaterials that leverages the body's inherent ability to regenerate/repair reproductive organs...
February 3, 2017: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/28025841/regulation-of-diapause-in-carnivores
#3
J C Fenelon, P L Lefèvre, A Banerjee, B D Murphy
Embryonic diapause is an evolutionary strategy to ensure that offspring are born when maternal and environmental conditions are optimal for survival. In many species of carnivores, obligate embryonic diapause occurs in every gestation. In mustelids, the regulation of diapause and reactivation is influenced by photoperiod, which then acts to regulate the secretion of pituitary prolactin. Prolactin in turn regulates ovarian steroid function. Reciprocal embryo transplant studies indicate that this state of embryonic arrest is conferred by uterine conditions and is presumed to be due to a lack of specific factors necessary for continued development...
December 27, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27995397/uterine-tissue-engineering-and-the-future-of-uterus-transplantation
#4
Mats Hellström, Sara Bandstein, Mats Brännström
The recent successful births following live donor uterus transplantation are proof-of-concept that absolute uterine factor infertility is a treatable condition which affects several hundred thousand infertile women world-wide due to a dysfunctional uterus. This strategy also provides an alternative to gestational surrogate motherhood which is not practiced in most countries due to ethical, religious or legal reasons. The live donor surgery involved in uterus transplantation takes more than 10 h and is then followed by years of immunosuppressive medication to prevent uterine rejection...
December 19, 2016: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/27982170/uterine-transplantation-a-systematic-review
#5
Dani Ejzenberg, Luana Regina Baratelli Carelli Mendes, Luciana Bertocco de Paiva Haddad, Edmund Chada Baracat, Luiz Augusto Carneiro D'Albuquerque, Wellington Andraus
Up to 15% of the reproductive population is infertile, and 3 to 5% of these cases are caused by uterine dysfunction. This abnormality generally leads women to consider surrogacy or adoption. Uterine transplantation, although still experimental, may be an option in these cases. This systematic review will outline the recommendations, surgical aspects, immunosuppressive drugs and reproductive aspects related to experimental uterine transplantation in women.
November 1, 2016: Clinics
https://www.readbyqxmd.com/read/27982161/first-latin-uterine-transplantation-we-can-do-it
#6
EDITORIAL
José Maria Soares, Dani Ejzenberg, Wellington Andraus, Luiz Augusto Carneiro D'Albuquerque, Edmund Chada Baracat
No abstract text is available yet for this article.
November 1, 2016: Clinics
https://www.readbyqxmd.com/read/27941441/live-donors-of-the-initial-observational-study-of-uterus-transplantation-psychological-and-medical-follow-up-until-1-year-after-surgery-in-the-9-cases
#7
Niclas Kvarnström, Stina Järvholm, Liza Johannesson, Pernilla Dahm-Kähler, Michael Olausson, Mats Brännström
BACKGROUND: The first prospective observational study of uterus transplantation was initiated in 2013 with live donation to 9 women with absolute uterine factor infertility. We explored the medical complications and psychosocial wellbeing of the donors during the first postoperative year. METHODS: Complications were registered and graded according to the Clavien-Dindo (C-D) classification. Symptoms related to the surgery were registered. Data on length of hospital stay, sick leave, socioeconomic parameters, and life events were obtained...
March 2017: Transplantation
https://www.readbyqxmd.com/read/27921235/transplantation-of-collagen-scaffold-with-autologous-bone-marrow-mononuclear-cells-promotes-functional-endometrium-reconstruction-via-downregulating-%C3%AE-np63-expression-in-asherman-s-syndrome
#8
Guangfeng Zhao, Yun Cao, Xianghong Zhu, Xiaoqiu Tang, Lijun Ding, Haixiang Sun, Juan Li, Xinan Li, Chenyan Dai, Tong Ru, Hui Zhu, Jingjie Lu, Caimei Lin, Jingmei Wang, Guijun Yan, Huiyan Wang, Lei Wang, Yimin Dai, Bin Wang, Ruotian Li, Jianwu Dai, Yan Zhou, Yali Hu
Asherman's syndrome (AS) is a common disease that presents endometrial regeneration disorder. However, little is known about its molecular features of this aregenerative endometrium in AS and how to reconstruct the functioning endometrium for the patients with AS. Here, we report that ΔNp63 is significantly upregulated in residual epithelial cells of the impaired endometrium in AS; the upregulated-ΔNp63 induces endometrial quiescence and alteration of stemness. Importantly, we demonstrate that engrafting high density of autologous bone marrow mononuclear cells (BMNCs) loaded in collagen scaffold onto the uterine lining of patients with AS downregulates ΔNp63 expression, reverses ΔNp63-induced pathological changes, normalizes the stemness alterations and restores endometrial regeneration...
December 1, 2016: Science China. Life Sciences
https://www.readbyqxmd.com/read/27905000/decidual-natural-killer-cells-and-the-immune-microenvironment-at-the-maternal-fetal-interface
#9
REVIEW
Binqing Fu, Haiming Wei
During early pregnancy, an orchestrated evolutionary maternal adaption toward tolerance of the semiallogeneic fetus is required to ensure decidualization and early embryo development. Remodeling of the immune system involves natural killer cells (NKs), macrophages, T cells and dendritic cells (DCs) altering the microenvironment in the deciduas. In particular, a unique population of NK cells with a CD56(bright)CD16(-) phenotype in the decidua has been proposed to play a key role in the maternal adaptation to pregnancy...
December 2016: Science China. Life Sciences
https://www.readbyqxmd.com/read/27868389/monitoring-of-human-uterus-transplantation-with-cervical-biopsies-a-provisional-scoring-system-for-rejection
#10
J Mölne, V Broecker, J Ekberg, O Nilsson, P Dahm-Kähler, M Brännström
Until now, absolute uterine factor infertility has been the major untreatable form of female infertility. Uterus transplantation has recently proven to be the first successful treatment for absolute uterine factor infertility, with demonstration of live births. In this study, live donation uterus transplantation was performed in nine women. In total, 163 cervical biopsies (149 protocol, 14 follow-up) were taken to detect histopathological signs of rejection. Based on experience from animal experiments, we used a three-grade scoring system to evaluate biopsies systematically...
November 21, 2016: American Journal of Transplantation
https://www.readbyqxmd.com/read/27790149/co-micronized-palmitoylethanolamide-polydatin-treatment-causes-endometriotic-lesion-regression-in-a-rodent-model-of-surgically-induced-endometriosis
#11
Rosanna Di Paola, Roberta Fusco, Enrico Gugliandolo, Rosalia Crupi, Maurizio Evangelista, Roberta Granese, Salvatore Cuzzocrea
Endometriosis is a chronic, painful disease characterized by the presence of endometrial glands and stroma outside the uterine cavity. Palmitoylethanolamide (PEA), an endogenous fatty acid amide, has anti-inflammatory and neuroprotective effects. PEA lacks free radical scavenging activity, unlike polydatin (PLD), a natural precursor of resveratrol. The aim of this study was to investigate the effect of orally administered co-micronized PEA/polydatin [m(PEA/PLD)] in an autologous rat model of surgically induced endometriosis...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27786342/multispectral-imaging-of-organ-viability-during-uterine-transplantation-surgery-in-rabbits-and-sheep
#12
Neil T Clancy, Srdjan Saso, Danail Stoyanov, Vincent Sauvage, David J Corless, Michael Boyd, David E Noakes, Meen-Yau Thum, Sadaf Ghaem-Maghami, James Richard Smith, Daniel S Elson
No abstract text is available yet for this article.
October 1, 2016: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/27786258/surgical-technique-for-allogeneic-uterus-transplantation-in-macaques
#13
Hideaki Obara, Iori Kisu, Yojiro Kato, Yohei Yamada, Kentaro Matsubara, Katsura Emoto, Masataka Adachi, Yusuke Matoba, Kiyoko Umene, Yuya Nogami, Kouji Banno, Hideaki Tsuchiya, Iori Itagaki, Ikuo Kawamoto, Takahiro Nakagawa, Hirohito Ishigaki, Yasushi Itoh, Kazumasa Ogasawara, Yoko Saiki, Shin-Ichi Sato, Kenshi Nakagawa, Takashi Shiina, Daisuke Aoki, Yuko Kitagawa
No study has reported an animal model of uterus transplantation (UTx) using cynomolgus macaques. We aimed to establish a surgical technique of allogeneic UTx assuming the recovery of a uterus from a deceased donor in cynomolgus macaques. Four allogeneic UTxs were performed in female cynomolgus macaques. Donor surgeries comprised en bloc recovery of organs with iliac vessels on both sides, and/or abdominal aorta/vena cava after sufficient perfusion from one femoral artery or external iliac artery. Before perfusion, 150 mL of whole blood was obtained from the donor for subsequent blood transfusion to the recipient...
October 27, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27774233/other-women-s-wombs-uterus-transplants-and-gestational-surrogacy
#14
John A Robertson
The birth of a child after uterus transplant from a living donor in Sweden in October, 2013 has spurred reproductive and transplant physicians in Europe and North America to investigate whether uterus transplants, from living or cadaveric donors, will be a safe and effective therapy for women with uterine insufficiency. While progress with uterus transplant depends on medical factors, there are also important ethical and legal concerns. Uterus transplant is essential for women without access to surrogacy. It may also be sought by infertile women who dislike surrogacy...
April 2016: Journal of Law and the Biosciences
https://www.readbyqxmd.com/read/27770218/3d-cell-culturing-and-possibilities-for-myometrial-tissue-engineering
#15
Minoo Heidari Kani, Eng-Cheng Chan, Roger C Young, Trent Butler, Roger Smith, Jonathan W Paul
Research insights into uterine function and the mechanisms of labour have been hindered by the lack of suitable animal and cellular models. The use of traditional culturing methods limits the exploration of complex uterine functions, such as cell interactions, connectivity and contractile behaviour, as it fails to mimic the three-dimensional (3D) nature of uterine cell interactions in vivo. Animal models are an option, however, use of these models is constrained by ethical considerations as well as translational limitations to humans...
October 21, 2016: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/27760752/ectopic-trophoblast-allografts-in-the-horse-resist-destruction-by-secondary-immune-responses
#16
Margaret M Brosnahan, Emily J Silvela, Jessica Crumb, Donald C Miller, Hollis N Erb, Douglas F Antczak
Invasive trophoblast from Day 34 horse conceptuses survives in extrauterine sites in allogeneic recipients that are immunologically naive to donor major histocompatibility complex class I antigens. The ectopic trophoblast retains its in utero characteristics, including similar lifespan, physiologic effect of its secreted product (equine chorionic gonadotropin) upon the recipient's ovaries, and induction of host immune responses. Immunologic memory has not been considered previously in this experimental system...
December 2016: Biology of Reproduction
https://www.readbyqxmd.com/read/27754594/living-donor-uterus-transplant-and-surrogacy-ethical-analysis-according-to-the-principle-of-equipoise
#17
G Testa, E C Koon, L Johannesson
The uterus is the most recent addition to the list of organs that can be successfully transplanted in humans. This article analyzes living donor uterus transplantation according to the ethical principle of equipoise. A comparison is made between living donor uterus transplantation and gestational surrogate motherhood. Both are solutions to absolute uterine infertility that allow the transfer of genetic material from intended parents to a child. The analysis concludes that living donor uterus transplantation does not violate the ethical principle of equipoise and should be considered an ethically acceptable solution to absolute uterine infertility...
October 18, 2016: American Journal of Transplantation
https://www.readbyqxmd.com/read/27720095/uterine-transplants-in-the-canadian-setting-a-theoretical-framework
#18
Jacques Balayla
The uterine transplant is an innovative surgical procedure whereby a healthy uterus is transplanted into a woman with uterine factor infertility (UFI) for the purpose of procreation. Twelve uterine transplants have been attempted in the world in the last two decades, and five have led to viable births. While uterine transplantation is still in its experimental stages, it remains unclear whether Canadian centres plan to attempt the procedure in the near future. Herein, I raise several observations that are specific to the Canadian setting and apply the Montreal Criteria for the Ethical Feasibility of Uterine Transplantation to determine whether there is fertile ground for a uterine transplantation program to be adopted in Canada...
October 2016: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/27716570/ectopic-pregnancy-in-simultaneous-pancreas-kidney-transplantation-a-case-report
#19
Shinji Yamamoto, Maria Nelander
INTRODUCTION: We present a case report of ectopic pregnancy (EP) after simultaneous pancreas-kidney transplantation (SKPTx). PRESENTATION OF CASE: A 33-year-old female status post SKPTx suddenly got abdominal pain in the lower level. She had high human chorionic Gonadotropin test. Ultrasonography revealed that there was no fetus in the uterus but a dilated right fallopian tube, which strongly suggested ectopic pregnancy. An emergency operation was performed and a dilated right side uterine tube was found with adhesions to her transplant...
2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27688077/reinnervation-of-rat-endometrium-in-the-anterior-eye-chamber-model-of-experimental-endometriosis-old-methods-for-new-questions
#20
Patricia Silveira, Camila Texidor-Frugoni, Gaby F Martínez, M Mónica Brauer
Endometriosis is a benign estrogen-dependent chronic gynecological disease characterized by the presence of endometrial-like tissue outside the uterine cavity. In both women and experimental endometriotic rats, endometriosis lesions endow autonomic and sensory nerves, which are thought to contribute to the disease-associated pain. Some evidence indicates that the reinnervation of lesions is regulated by factors produced by the endometrial tissue as well as by environmental factors from the peritoneum. In this study, we examined the reinnervation of the rat endometrial tissue in an ectopic environment different from the peritoneum employing the anterior eye chamber model of experimental endometriosis...
September 23, 2016: Autonomic Neuroscience: Basic & Clinical
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