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Fate of human thyroid tissue autotransplants.

PURPOSE: We conducted this study to establish whether human thyroid tissue autografts can survive and function in the absence of their native blood supply in muscle. The benefits of this potential could be incorporated in routine surgery to reduce the incidence of post-operative hypothyroidism. METHODS: Fifteen patients with benign thyroid disorders, seven of whom had Graves' disease and eight, multinodular goiter (MNG), underwent modified subtotal thyroidectomy and the autotransplantation of thyroid tissue in the sternocleidomastoid muscle. About 3-5 g of thyroid tissue was cut and implanted

Liver tissue engineering at extrahepatic sites in mice as a potential new therapy for genetic liver diseases.

Liver tissue engineering using hepatocyte transplantation has been proposed as an alternative to whole-organ transplantation or liver-directed gene therapy to correct various types of hepatic insufficiency. Hepatocytes are not sustained when transplanted under the kidney capsule of syngeneic mice. However, when we transplanted hepatocytes with the extracellular matrix components extracted from Engelbreth-Holm-Swarm cells, hepatocytes survived for at least 140 days and formed small liver tissues. Liver engineering in hemophilia A mice reconstituted 5% to 10% of normal clotting activity, enough

Adipose-derived mesenchymal stem cells stereotactic transplantation alleviate brain edema from intracerebral hemorrhage.

Adipose-derived mesenchymal stromal cells (ADSCs) exhibited high potential in tissue repair and regeneration, and it has been proved that ADSCs could protect brain cells from apoptosis and maintaining blood-brain barrier stability after cerebral vascular disease. In this study, we evaluated the therapeutic potential and mechanism of ADSCs stereotactic transplantation in intracerebral hemorrhage (ICH) mice model and hemin-treated astrocytes. Mice were divided into three groups: sham group, ICH + PBS group, and ICH + ADSC group. Mice in ICH + ADSC group received ADSCs cell suspension stereotacti

Effect of subconjunctival lacrimal gland transplantation in a rabbit dry eye model.

PURPOSE: The main and accessory lacrimal glands are involved in reflex and basal secretion of tears, respectively, with the glandular tissue anatomy being similar for both glands. We transplanted part of the main lacrimal gland under the palpebral conjunctiva in a rabbit dry eye model and assessed the therapeutic effect of this procedure. METHODS: In New Zealand White rabbits, the greater superficial petrosal nerve was cut unilaterally under a microscope. The other eye served as a normal control. For transplantation, approximately 0.07 g of the main lacrimal gland was harvested from the norma

Similarities and Differences Between Allogeneic Hematopoietic Cell and Organ Transplantation and What We Can Learn From Each Other to Guide Global Health Strategy.

BACKGROUND: Allogeneic hematopoietic cell transplantation (HCT) and solid organ transplantation (SOT) have evolved into successful, curative treatments for many severe congenital and acquired diseases. Both use medical products of human origin and should therefore have overarching regulatory frameworks. Both require critical decisions about donor selection, donor/recipient matching, immunosuppression, and long-term care, all tasks best performed by a trained, highly specialized multidisciplinary team. Both need committed institutions and governmental support for their success. Whereas the main

Effects of donor-engrafted clonal hematopoiesis in allogeneic and autologous stem cell transplantation: a systematic review and meta-analysis.

Donor stem cell health may be critically important to the success of hematopoietic stem cell transplantation (HSCT). Herein, we performed this systematic review and meta-analysis including meta-regression to assess the impact of donor-engrafted clonal hematopoiesis (CH) in allogeneic HSCT (allo-HSCT) and impact of pre-transplant CH in autologous HSCT (auto-HSCT). We applied random-effects models to analyze 5 allo-HSCT studies with 3192 donor-recipient pairs and 9 auto-HSCT studies with 2854 patients. We found that donor-engrafted CH after allo-HSCT decreased the risk of disease relapse [Hazard

Transplantation of the hand, face, and composite structures: evolution and current status.

This article reviews the world experience in the newly emerging field of composite tissue allotransplantation. These allografts contain multiple tissues that are usually musculoskeletal structures with a skin or epithelial surface, such as hand, facial structures, larynx, tongue, ear, knee/femur, abdominal wall, and penis. They represent a new transplantation field, with only a 10-year experience and just over 50 clinical cases. This review of the 10-year world experience found uniform technical success, immunologic biology, and immunosuppression regimens very similar to solid organ transplant

Tissue Engineering in Stomatology: A Review of Potential Approaches for Oral Disease Treatments.

Tissue engineering is an emerging discipline that combines engineering and life sciences. It can construct functional biological structures in vivo or in vitro to replace native tissues or organs and minimize serious shortages of donor organs during tissue and organ reconstruction or transplantation. Organ transplantation has achieved success by using the tissue-engineered heart, liver, kidney, and other artificial organs, and the emergence of tissue-engineered bone also provides a new approach for the healing of human bone defects. In recent years, tissue engineering technology has gradually

Взрыв Q в Нидерландах: последствия для банковской деятельности.

СПРАВОЧНАЯ ИНФОРМАЦИЯ: Новые инфекционные заболевания могут поставить под угрозу безопасность тканей для трансплантации. Недавняя вспышка лихорадки Q - зооноза, вызванная бактерией " Coxiella signetii " в Нидерландах, вынудила банки тканей Нидерландов оценить риск передачи Q лихорадки через трансплантацию тканей в целях обеспечения оптимальной безопасности. В этой статье описывается систематический подход, применявшийся в Нидерландах. Этот подход включал обзор литературы, качественную оценку риска, сбор экспертных заключений и изучение конкретных стратегий, которые могут способствова

Совпадение в аннотации оригинала
BACKGROUND: Emerging infectious diseases can compromise the safety of tissues for transplantations. A recent outbreak of Q fever, a zoonosis caused by the bacterium Coxiella burnetii, in the Netherlands compelled the Dutch tissue banks to assess the risk of Q fever transmission through tissue transplantation in order to maintain optimal safety. MATHODS: This…

Late airway complications following pediatric liver transplantation: A case series.

BACKGROUND: Late airway complications, as consequence of immunosuppression following pediatric liver transplantation are uncommonly reported. METHODS: In this retrospective case series, we describe two young children presenting with symptoms of airway obstruction, secondary to differing pathologies in the supraglottic airway, as a result of immunosuppression following liver transplantation. RESULTS: Case 1, a 2-year-old girl who presented with stridor 12-months following liver transplantation, was found to have a proliferative soft tissue mass involving the supraglottic larynx. Biopsies were

In vivo imaging of the outer retina after an autologous neurosensory retinal free flap transplantation for a refractory macular hole closure.

BACKGROUND: There are limited surgical options to successfully close a refractory macular hole. One promising option is an autologous neurosensory retinal free flap transplantation. An autologous neurosensory retinal free flap transplantation places a graft of peripheral autologous retinal tissue into the macular hole and was developed to improve post-surgical outcomes. Here, clinical instrumentation and a high-resolution adaptive optics system imaged the graft and host tissue of a patient whose refractory macular hole was successfully closed with an autologous neurosensory retinal free flap t

A Review of Transplantation Practice of the Urologic Organs: Is It Only Achievable for the Kidney?

Transplantation is a viable treatment option for failure of most major organs. Within urology, transplantation of the kidney and ureter are well documented; however, evidence supporting transplantation of other urologic organs is limited. Failure of these organs carries significant morbidity, and transplantation may have a role in management. This article reviews the knowledge, research, and literature surrounding transplantation of each of the urologic organs. Transplantation of the penis, testicle, urethra, vas deferens, and bladder is discussed. Transplantation attempts have been made indiv

Microcarrier enhanced survival of human and rat fetal ventral mesencephalon cells implanted in the rat striatum.

The transplantation of tissue containing dopamine-producing cells into the mammalian central nervous system is an emerging treatment for Parkinson's disease, despite relatively poor survival of implanted tissue. Recent evidence has suggested that Cytodex microcarriers enhance the survival of dopaminergic rat chromaffin cells transplanted into the rat striatum in the absence of immunosuppression. The current study was undertaken to evaluate the survival of rat and human fetal ventral mesencephalic neurons (VM) implanted alone or after attachment to microcarriers in the striatum of rats without

Glutaraldehyde treatment of allograft tissue decreases allosensitization after the Norwood procedure.

OBJECTIVE: Cryopreserved allograft tissue used in the Norwood procedure for infants with hypoplastic left heart syndrome causes a marked immunologic sensitization that may complicate future heart transplantation. Treatment of the allograft tissue before implantation may prevent this sensitization. The purpose of this study was to assess the anti-human leukocyte antigen antibody response to glutaraldehyde-treated allograft tissue used in the repair of hypoplastic left heart syndrome. METHODS: Since June 2005, the University of Alberta has subjected allograft vascular tissue used in the Norwood

Transplantation of facial processes for repair of induced branchial arch syndromes.

A technique has been developed by which facial processes with adequately migrated neural crest tissue can be cultured and transplanted to embryos with induced craniofacial malformations. Culturing was carried out in the anterior eye chambers of adult rats or as whole embryo cultures in glass vials (n = 71). Facial processes transplanted to the anterior eye chamber differentiated to cartilage, bone, and mesenchymal tissues. It was possible to keep the embryos alive in whole tissue culture for up to 24 hours. The addition of epidermal growth factor to the culture medium resulted in accelerated g

Heart Transplantation in 2076: From Scarcity to Cardiac Restoration.

Heart transplantation has historically been defined by the scarcity of donor organs and the uncertainties surrounding them. Over the past 50 years, advances in immunosuppression, surgical techniques, and posttransplant surveillance have improved outcomes, yet the fundamental paradigm remains unchanged: the replacement of a failing heart still depends on the death of another person. In this Perspective, we argue that this paradigm is beginning to shift, with early evidence emerging from molecular diagnostics that enable noninvasive detection of graft injury. Over the coming decades, regenerativ

Perspectives on biovigilance and transmission of infection of donor origin in deceased organ donation-The evolving scenario in the United Kingdom.

BACKGROUND: A biovigilance program that has oversight of the entire organ and tissue donation and transplantation pathways underpins the quality and safety system in the United Kingdom. METHOD: A synopsis of the microbiological characterization of potential deceased organ donors and the processes for notification and investigation of possible donor-derived infections are described. A summary of the outcome of investigations performed over a 10-year period and a subset data frame of 5 years showing the proportion of infection incidents in relation to other incident types are also presented. C