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Zhou Q, Li T, Wang K, Zhang Q, Geng Z, Deng S, Cheng C, Wang Y. Current status of xenotransplantation research and the strategies for preventing xenograft rejection. Front Immunol 2022; 13:928173. [PMID: 35967435 PMCID: PMC9367636 DOI: 10.3389/fimmu.2022.928173] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 07/07/2022] [Indexed: 12/13/2022] Open
Abstract
Transplantation is often the last resort for end-stage organ failures, e.g., kidney, liver, heart, lung, and pancreas. The shortage of donor organs is the main limiting factor for successful transplantation in humans. Except living donations, other alternatives are needed, e.g., xenotransplantation of pig organs. However, immune rejection remains the major challenge to overcome in xenotransplantation. There are three different xenogeneic types of rejections, based on the responses and mechanisms involved. It includes hyperacute rejection (HAR), delayed xenograft rejection (DXR) and chronic rejection. DXR, sometimes involves acute humoral xenograft rejection (AHR) and cellular xenograft rejection (CXR), which cannot be strictly distinguished from each other in pathological process. In this review, we comprehensively discussed the mechanism of these immunological rejections and summarized the strategies for preventing them, such as generation of gene knock out donors by different genome editing tools and the use of immunosuppressive regimens. We also addressed organ-specific barriers and challenges needed to pave the way for clinical xenotransplantation. Taken together, this information will benefit the current immunological research in the field of xenotransplantation.
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Affiliation(s)
- Qiao Zhou
- Department of Rheumatology and Immunology, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Clinical Immunology Translational Medicine Key Laboratory of Sichuan Province, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Ting Li
- Department of Rheumatology, Wenjiang District People’s Hospital, Chengdu, China
| | - Kaiwen Wang
- School of Medicine, Faculty of Medicine and Health, The University of Leeds, Leeds, United Kingdom
| | - Qi Zhang
- School of Medicine, University of Electronics and Technology of China, Chengdu, China
| | - Zhuowen Geng
- School of Medicine, Faculty of Medicine and Health, The University of Leeds, Leeds, United Kingdom
| | - Shaoping Deng
- Clinical Immunology Translational Medicine Key Laboratory of Sichuan Province, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
- Institute of Organ Transplantation, Sichuan Academy of Medical Science and Sichuan Provincial People’s Hospital, Chengdu, China
| | - Chunming Cheng
- Department of Radiation Oncology, James Comprehensive Cancer Center and College of Medicine at The Ohio State University, Columbus, OH, United States
- *Correspondence: Chunming Cheng, ; Yi Wang,
| | - Yi Wang
- Department of Critical Care Medicine, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Chengdu, China
- *Correspondence: Chunming Cheng, ; Yi Wang,
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Chen HF, Ali H, Marrero WJ, Parikh ND, Lavieri MS, Hutton DW. The Magnitude of the Health and Economic Impact of Increased Organ Donation on Patients With End-Stage Renal Disease. MDM Policy Pract 2021; 6:23814683211063418. [PMID: 34901442 PMCID: PMC8655828 DOI: 10.1177/23814683211063418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 11/09/2021] [Indexed: 11/16/2022] Open
Abstract
Objectives. There are several approaches such as presumed consent and compensation for deceased donor organs that could reduce the gap between supply and demand for kidneys. Our objective is to evaluate the magnitude of the economic impact of policies to increase deceased donor organ donation in the United States. Methods. We built a Markov model and simulate an open cohort of end-stage renal disease patients awaiting kidney transplantation in the United States over 20 years. Model inputs were derived from the United States Renal Data System and published literature. We evaluate the magnitude of the health and economic impact of policies to increase deceased donor kidney donation in the United States. Results. Increasing deceased kidney donation by 5% would save $4.7 billion, and gain 30,870 quality-adjusted life years over the lifetime of an open cohort of patients on dialysis on the waitlist for kidney transplantation. With an increase in donations of 25%, the cost saved was $21 billion, and 145,136 quality-adjusted life years were gained. Policies increasing deceased kidney donation by 5% could pay donor estates $8000 or incur a onetime cost of up to $4 billion and still be cost-saving. Conclusions. Increasing deceased kidney donation could significantly impact national spending and health for end-stage renal disease patients.
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Affiliation(s)
- Huey-Fen Chen
- Department of Health Management and Policy, University of Michigan, Ann Arbor, Michigan
| | - Hayatt Ali
- Department of Health Management and Policy, University of Michigan, Ann Arbor, Michigan
| | - Wesley J Marrero
- Department of Industrial and Operations Engineering, University of Michigan, Ann Arbor, Michigan
| | - Neehar D Parikh
- Department of Gastroenterology, University of Michigan, Ann Arbor, Michigan
| | - Mariel S Lavieri
- Department of Industrial and Operations Engineering, University of Michigan, Ann Arbor, Michigan
| | - David W Hutton
- Department of Health Management and Policy, University of Michigan, Ann Arbor, Michigan
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Fruh K, Duman EK. Offering more without offering compensation: non-compensating benefits for living kidney donors. MEDICINE, HEALTH CARE, AND PHILOSOPHY 2021; 24:711-719. [PMID: 34165674 DOI: 10.1007/s11019-021-10034-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/19/2021] [Indexed: 06/13/2023]
Abstract
While different positions on the permissibility of organ markets enjoy support, there is widespread agreement that some benefits to living organ donors are acceptable and do not raise the same moral concerns associated with organ markets, such as exploitation and commodification. We argue on the basis of two distinctions that some benefit packages offered to donors can defensibly surpass conventional reimbursement while stopping short of controversial cash payouts. The first distinction is between benefits that defray the costs of donating an organ and benefits that incentivize donation by offering something in excess of defraying. The second distinction is between benefits that compensate donors and benefits that are non-compensating. We argue that non-compensating benefits are innocent of moral concerns typically associated with controversial cash payouts, and thus may be a morally promising avenue for increasing rates of kidney donation to address the tragic results of undersupply.
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Affiliation(s)
- Kyle Fruh
- Duke Kunshan University, Kunshan, China.
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Ma J, Zeng L, Li T, Tian X, Wang L. Experiences of Families Following Organ Donation Consent: A Qualitative Systematic Review. Transplant Proc 2021; 53:501-512. [PMID: 33483168 DOI: 10.1016/j.transproceed.2020.09.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 09/21/2020] [Indexed: 10/22/2022]
Abstract
OBJECTIVE This systematic review synthesizes qualitative evidence on the experiences of donor families after consent to organ donation. METHODS This robust, qualitative systematic review included an exhaustive search of electronic databases, including PubMed, Scopus, EBSCO PsycINFO, and CINAHL Complete. Manual searches of reference lists and gray literature were conducted to achieve a comprehensive identification of all relevant research. A qualitative study design served to capture the experiences of donor families after organ donation consent. RESULTS A total of 6 articles that met the eligibility criteria were identified and included in this review. Three key themes emerged from the primary research: 1. family members were ambivalent about consent due to the ambiguity of brain death; 2. conversations about donation requirements proved uncomfortable; and 3. support is needed after donation. CONCLUSIONS Family members demonstrated ongoing ambivalence and distress that lasted for weeks after organ donation due to the ambiguity of brain death. Some family members were unhappy with having been approached for a conversation about organ donation. Donor families were not always able to deal with the difficulties they faced after their decision about organ donation. Health care professionals should provide ongoing care and updated information to family members. This review helped to identify family members' needs for both psychological and financial assistance.
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Affiliation(s)
- Juanjuan Ma
- Nursing Department, Shenzhen Shekou People's Hospital, Shenzhen, China
| | - Li Zeng
- Nursing Department, Shenzhen Shekou People's Hospital, Shenzhen, China.
| | - Tingjun Li
- The Second People's Hospital of Futian District, Shenzhen, China
| | - Xiaofei Tian
- The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Lili Wang
- Union Shenzhen Hospital (Nanshan Hospital), Shenzhen, China
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5
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Bastani B. The present and future of transplant organ shortage: some potential remedies. J Nephrol 2019; 33:277-288. [PMID: 31399908 DOI: 10.1007/s40620-019-00634-x] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 07/30/2019] [Indexed: 12/24/2022]
Abstract
Transplantation remains the modality of choice for patients with end stage renal disease (ESRD). However, while there has been a steady rise in the number of patients with ESRD the supply of donors (combine living and deceased) has fallen far behind the need, resulting in an increasing number of qualified patients remaining on the wait-list, and thousands being removed from the list every year because of death or becoming too sick for transplantation. This has also fed to transplant tourism around the world. Several countries have implemented a variety of policies to overcome their organ shortage that are presented in this article. There is an urgent need for developing policies geared to the cultural norms of different societies and universally accepted ethical principles to remedy this public health issue.
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Affiliation(s)
- Bahar Bastani
- Division of Nephrology, Saint Louis University Hospital, Saint Louis University School of Medicine, 3635 Vista Avenue, Saint Louis, MO, 63110, USA.
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Rispler Chaim V, Duguet AM. Debates in Islamic bioethics on how to increase organ donations: Between presumed consent and explicit consent. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.jemep.2018.10.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Wu Y, Elliott R, Li L, Yang T, Bai Y, Ma W. Cadaveric organ donation in China: A crossroads for ethics and sociocultural factors. Medicine (Baltimore) 2018; 97:e9951. [PMID: 29517702 PMCID: PMC5882451 DOI: 10.1097/md.0000000000009951] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
In this paper, we will discuss several ethical issues concerning cadaveric organ donation from the perspective of sociocultural factors that are unique to China under the condition that China has ended the use of executed prisoner's organs for transplants. It is found that though great developments have been made in organ transplantation, the ethical issues relating to organ transplantation still face dilemmas in China. It is argued that organ donation and transplantation in China could make further progress if the ethical issues proposed in this paper can be carefully considered.
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Affiliation(s)
- Yijin Wu
- School of Translation Studies/Editorial Office for Medical Humanities in the Developing World, Qufu Normal University
| | | | - Linzi Li
- Tancheng Maternal and Child Health Hospital
| | | | - Yusen Bai
- Tancheng Maternal and Child Health Hospital
| | - Wen Ma
- Center for Clinical Neurolinguistics, School of Foreign Languages and Literature, Shandong University, China
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Jawoniyi O, Gormley K, McGleenan E, Noble HR. Organ donation and transplantation: Awareness and roles of healthcare professionals-A systematic literature review. J Clin Nurs 2018; 27:e726-e738. [PMID: 29098739 DOI: 10.1111/jocn.14154] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/19/2017] [Indexed: 12/27/2022]
Abstract
AIMS AND OBJECTIVES To examine the role of healthcare professionals in the organ donation and transplantation process. BACKGROUND Globally, there remains a perennial disequilibrium between organ donation and organ transplantation. Several factors account for this disequilibrium; however, as healthcare professionals are not only strategically positioned as the primary intermediaries between organ donors and transplant recipients, but also professionally situated as the implementers of organ donation and transplantation processes, they are often blamed for the global organ shortage. DESIGN Mixed-method systematic review using the Preferred Reporting Items for Systematic review and Meta-Analysis Protocols 2015 checklist. METHODS Databases were searched including CINAHL, MEDLINE, Web of Science and EMBASE using the search terms "organ donation," "healthcare professionals," "awareness" and "roles" to retrieve relevant publications. RESULTS Thirteen publications met the inclusion criteria. The global organ shortage is neither contingent upon unavailability of suitable organs nor exclusively dependent upon healthcare professionals. Instead, the existence of disequilibrium between organ donation and transplantation is necessitated by a web of factors. These include the following: healthcare professionals' attitudes towards, and experience of, the organ donation and transplantation process, underpinned by professional education, specialist clinical area and duration of professional practice; conflicts of interests; ethical dilemmas; altruistic values towards organ donation; and varied organ donation legislations in different legal jurisdictions. CONCLUSION This review maintains that if this web of factors is to be adequately addressed by healthcare systems in different global and legal jurisdictions, there should be sufficient organs voluntarily donated to meet all transplantation needs. RELEVANCE TO CLINICAL PRACTICE There is a suggestion that healthcare professionals partly account for the global shortage in organ donation, but there is a need to examine how healthcare professionals' roles, knowledge, awareness, skills and competencies might impact upon the organ donation and transplantation process.
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Affiliation(s)
| | - Kevin Gormley
- School of Nursing & Midwifery, Queens University Belfast, Belfast, UK
| | - Emma McGleenan
- School of Nursing & Midwifery, Queens University Belfast, Belfast, UK
| | - Helen Rose Noble
- School of Nursing & Midwifery, Queens University Belfast, Belfast, UK
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Dalal AR. Philosophy of organ donation: Review of ethical facets. World J Transplant 2015; 5:44-51. [PMID: 26131406 PMCID: PMC4478599 DOI: 10.5500/wjt.v5.i2.44] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 02/06/2015] [Accepted: 03/16/2015] [Indexed: 02/05/2023] Open
Abstract
Transplantation ethics is a philosophy that incorporates systematizing, defending and advocating concepts of right and wrong conduct related to organ donation. As the demand for organs increases, it is essential to ensure that new and innovative laws, policies and strategies of increasing organ supply are bioethical and are founded on the principles of altruism and utilitarianism. In the field of organ transplantation, role of altruism and medical ethics values are significant to the welfare of the society. This article reviews several fundamental ethical principles, prevailing organ donation consent laws, incentives and policies related to the field of transplantation. The Ethical and Policy Considerations in Organ Donation after Circulatory Determination of Death outline criteria for death and organ retrieval. Presumed consent laws prevalent mostly in European countries maintain that the default choice of an individual would be to donate organs unless opted otherwise. Explicit consent laws require organ donation to be proactively affirmed with state registries. The Declaration of Istanbul outlines principles against organ trafficking and transplant tourism. World Health Organization's Guiding Principles on Human Cell, Tissue and Organ Transplantation aim at ensuring transparency in organ procurement and allocation. The ethics of financial incentives and non-financial incentives such as incorporation of non-medical criteria in organ priority allocation have also been reviewed in detail.
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Caulfield T, Nelson E, Goldfeldt B, Klarenbach S. Incentives and organ donation: what's (really) legal in Canada? Can J Kidney Health Dis 2014; 1:7. [PMID: 25780602 PMCID: PMC4349723 DOI: 10.1186/2054-3581-1-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 05/09/2014] [Indexed: 11/12/2022] Open
Abstract
Purpose of review To date, there has been little analysis of the degree to which emerging incentive initiatives are permissible under Canadian law. The purpose of this review is to examine the relevant law – including legislation and case law – in order to clarify the legality of existing proposed incentive schemes. Sources of information Legislation and case law. Findings Organ donation is governed by provincial legislation that, in general, bans the exchange of any “benefit” or any form of “valuable consideration” in return for an organ. As such, these laws are tremendously restrictive and could have significant implications for emerging and proposed procurement policy. Implications Given the need for innovative, ethically appropriate policies to increase donation rates, we suggest that the time is right to rethink the potentially restrictive nature of Canada’s organ donation laws.
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Affiliation(s)
- Timothy Caulfield
- Faculty of Law and School of Public Health, Health Law Institute, University of Alberta, 116 St and 85 Avenue, Edmonton, AB T6G 2R3 Canada ; School of Public Health, 3-300 Edmonton Clinic Health Academy, University of Alberta, 11405 - 87 Avenue, Edmonton, AB T6G 1C9 Canada
| | - Erin Nelson
- Faculty of Law and School of Public Health, Health Law Institute, University of Alberta, 116 St and 85 Avenue, Edmonton, AB T6G 2R3 Canada
| | - Brice Goldfeldt
- Faculty of Law and School of Public Health, Health Law Institute, University of Alberta, 116 St and 85 Avenue, Edmonton, AB T6G 2R3 Canada
| | - Scott Klarenbach
- Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, 116 St and 85 Avenue, Edmonton, AB T6G 2R3 Canada
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Ralph A, Chapman JR, Gillis J, Craig JC, Butow P, Howard K, Irving M, Sutanto B, Tong A. Family perspectives on deceased organ donation: thematic synthesis of qualitative studies. Am J Transplant 2014; 14:923-35. [PMID: 24612855 DOI: 10.1111/ajt.12660] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 12/27/2013] [Accepted: 12/27/2013] [Indexed: 01/25/2023]
Abstract
A major barrier to meeting the needs for organ transplantation is family refusal to give consent. This study aimed to describe the perspectives of donor families on deceased donation. We conducted a systematic review and thematic synthesis of qualitative studies. Electronic databases were searched to September 2012. From 34 studies involving 1035 participants, we identified seven themes: comprehension of sudden death (accepting finality of life, ambiguity of brain death); finding meaning in donation (altruism, letting the donor live on, fulfilling a moral obligation, easing grief); fear and suspicion (financial motivations, unwanted responsibility for death, medical mistrust); decisional conflict (pressured decision making, family consensus, internal dissonance, religious beliefs); vulnerability (valuing sensitivity and rapport, overwhelmed and disempowered); respecting the donor (honoring the donor's wishes, preserving body integrity) and needing closure (acknowledgment, regret over refusal, unresolved decisional uncertainty, feeling dismissed). Bereaved families report uncertainty about death and the donation process, emotional and cognitive burden and decisional dissonance, but can derive emotional benefit from the "lifesaving" act of donation. Strategies are needed to help families understand death in the context of donation, address anxieties about organ procurement, foster trust in the donation process, resolve insecurities in decision making and gain a sense of closure.
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Affiliation(s)
- A Ralph
- Centre for Kidney Research, The Children's Hospital at Westmead, Westmead, NSW, Australia; Sydney School of Public Health, The University of Sydney, Sydney, NSW, Australia
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