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Organ transplantation is a medical procedure in which an organ is removed from one body and placed in the body of a recipient, to replace a damaged or missing organ. The donor and recipient may be at the same location, or organs may be transported from a donor site to another location. Organs and/or tissues that are transplanted within the same person's body are called autografts. Transplants that are recently performed between two subjects of the same species are called allografts. Allografts can either be from a living or cadaveric source.
Dimethyl sulfoxide (DMSO) is an organosulfur compound with the formula (CH3)2SO. This colorless liquid is the sulfoxide most widely used commercially. It is an important polar aprotic solvent that dissolves both polar and nonpolar compounds and is miscible in a wide range of organic solvents as well as water. It has a relatively high boiling point. DMSO is metabolised to compounds that leave a garlic-like taste in the mouth after DMSO is absorbed by skin.
Dimethyl sulfone (DMSO2) is an organosulfur compound with the formula (CH3)2SO2. It is also known by several other names including methyl sulfone and (especially in alternative medicine) methylsulfonylmethane (MSM). This colorless solid features the sulfonyl functional group and is the simplest of the sulfones. It is relatively inert chemically and is able to resist decomposition at elevated temperatures. It occurs naturally in some primitive plants, is present in small amounts in many foods and beverages, and is marketed (under the MSM name) as a dietary supplement. It is sometimes used as a cutting agent for illicitly manufactured methamphetamine. It is also commonly found in the atmosphere above marine areas, where it is used as a carbon source by the airborne bacteria Afipia. Oxidation of dimethyl sulfoxide produces the sulfone, both under laboratory conditions and metabolically.
In organic chemistry, a sulfoxide, also called a sulphoxide, is an organosulfur compound containing a sulfinyl functional group attached to two carbon atoms. It is a polar functional group. Sulfoxides are oxidized derivatives of sulfides. Examples of important sulfoxides are alliin, a precursor to the compound that gives freshly crushed garlic its aroma, and dimethyl sulfoxide (DMSO), a common solvent.
Dimethyl sulfide (DMS) or methylthiomethane is an organosulfur compound with the formula (CH3)2S. It is the simplest thioether and has a characteristic disagreeable odor. It is a flammable liquid that boils at 37 °C (99 °F). It is a component of the smell produced from cooking of certain vegetables, notably maize, cabbage, beetroot, and seafoods. It is also an indication of bacterial contamination in malt production and brewing. It is a breakdown product of dimethylsulfoniopropionate (DMSP), and is also produced by the bacterial metabolism of methanethiol.
Thomas Earl Starzl was an American physician, researcher, and expert on organ transplants. He performed the first human liver transplants, and has often been referred to as "the father of modern transplantation." A documentary, entitled "Burden of Genius," covering the medical and scientific advances spearheaded by Starzl himself, was released to the public in 2017 in a series of screenings. Starzl also penned his autobiography, "The Puzzle People: Memoirs Of A Transplant Surgeon," which was published in 1992.
A cryoprotectant is a substance used to protect biological tissue from freezing damage. Arctic and Antarctic insects, fish and amphibians create cryoprotectants in their bodies to minimize freezing damage during cold winter periods. Cryoprotectants are also used to preserve living materials in the study of biology and to preserve food products.
The University of California, Irvine Medical Center is a major research hospital located in Orange, California. It is the teaching hospital for the University of California, Irvine School of Medicine.
The company headquarters of Gaylord Chemical Company LLC are located in the New Orleans suburb of Slidell, Louisiana, USA. Gaylord's original manufacturing facility located in Bogalusa, Louisiana was shut down and demolished in 2010, when the company relocated its operations to Tuscaloosa, Alabama, USA. The company has manufactured dimethyl sulfoxide (DMSO) and dimethyl sulfide (DMS) continuously since the early 1960s.
The Pfitzner–Moffatt oxidation, sometimes referred to as simply the Moffatt oxidation, is a chemical reaction for the oxidation of primary and secondary alcohols to aldehydes and ketones, respectively. The oxidant is a combination of dimethyl sulfoxide (DMSO) and dicyclohexylcarbodiimide (DCC). The reaction was first reported by J. Moffatt and his student K. Pfitzner in 1963.
Organ transplantation in China has taken place since the 1960s, and is one of the largest organ transplant programmes in the world, peaking at over 13,000 liver and kidney transplants a year in 2004.
Deuterated DMSO, also known as dimethyl sulfoxide-d6, is an isotopologue of dimethyl sulfoxide (DMSO, (CH3)2S=O)) with chemical formula ((CD3)2S=O) in which the hydrogen atoms ("H") are replaced with their isotope deuterium ("D"). Deuterated DMSO is a common solvent used in NMR spectroscopy.
Gloria Cecilia Ramirez was an American woman from Riverside, California, who was dubbed the Toxic Lady or the Toxic Woman by the media when several hospital workers became ill after airborne exposure to her body and blood. Ramirez had been admitted to the emergency room suffering from late-stage cervical cancer. While treating Ramirez, three hospital workers fainted, and others experienced symptoms such as shortness of breath and muscle spasms. Five workers required hospitalization, one of whom remained in an intensive care unit for two weeks. Ramirez herself died from complications related to her cancer shortly after arriving at the hospital.
Dichlorotetrakis(dimethyl sulfoxide) ruthenium(II) describes coordination compounds with the formula RuCl2(dmso)4, where DMSO is dimethylsulfoxide. Both cis and trans isomers are known, but the cis isomer is more common. The cis isomer is a yellow, air-stable solid that is soluble in some organic solvents. These sulfoxide complexes are used in the synthesis of various ruthenium(ii) complexes. They have also attracted attention as possible anti-cancer drugs.
The Parikh–Doering oxidation is an oxidation reaction that transforms primary and secondary alcohols into aldehydes and ketones, respectively. The procedure uses dimethyl sulfoxide (DMSO) as the oxidant and the solvent, activated by the sulfur trioxide pyridine complex (SO3•C5H5N) in the presence of triethylamine or diisopropylethylamine as base. Dichloromethane is frequently used as a cosolvent for the reaction.
Francis L. Delmonico, MD, FACS is an American surgeon, clinical professor and health expert in the field of transplantation. He serves on numerous committees and is affiliated with various leading organizations and institutions. He is the chief medical officer of the New England Organ Bank (NEOB) and Professor of Surgery, Part-Time at Harvard Medical School in Boston, Massachusetts, where he is emeritus director of renal transplantation. He served as president of The Transplantation Society (TTS) from 2012 to 2014, an international non-profit organization based in Montreal, Canada that works with international transplantation physicians and researchers. He also served as the president of the United Network of Organ Sharing (UNOS) in 2005, which overseas the practice of organ donation and transplantation in the United States. He was appointed and still serves as an advisor to the World Health Organization in matters of organ donation and transplantation. He was appointed by Pope Francis to the Pontifical Academy of Science in 2016. In 2020, he became the recipient of the Medawar Prize of The Transplantation Society.
In interventional radiology, Onyx is a trade name for a copolymer used for embolisation therapy, which involves the occlusion of blood vessels. It is a liquid embolic agent. Onyx is produced and sold by Medtronic.
Allegations of forced organ harvesting from Falun Gong practitioners and other political prisoners in China have raised concern within the international community. According to a report by former lawmaker David Kilgour, human rights lawyer David Matas and journalist Ethan Gutmann of the US government–affiliated Victims of Communism Memorial Foundation, political prisoners, mainly Falun Gong practitioners, are being executed "on demand" in order to provide organs for transplant to recipients. Reports have said that organ harvesting has been used to advance the Chinese Communist Party's persecution of Falun Gong and because of the financial incentives available to the institutions and individuals involved in the trade. A report by The Washington Post has disputed some of the allegations, saying that China does not import sufficient quantities of immunosuppressant drugs, used by transplant recipients, to carry out such quantities of organ harvesting. However, the Victims of Communism Memorial Foundation alleged that the Post's article made an “elementary statistical error” and omitted unofficial pharmacy data in Chinese hospitals.
Edward E Rosenbaum, was an American physician and author. He is best known for the autobiographical chronicle of his experience with throat cancer, The Doctor,, which was the basis of the movie The Doctor, starring William Hurt as a physician modeled on Dr. Rosenbaum. He was also the founder of the Division of Arthritis and Rheumatic Diseases at the Oregon Health & Science University, where a chair of medicine is named in his honor.
A transition metal sulfoxide complex is a coordination complex containing one or more sulfoxide ligands. The inventory is large.
References
- ↑ "About Dr. Stanley Jacob". DMSO.org. 18 April 2018.
- ↑ "Dr. Stanley W. Jacob's biography, credentials, and achievements". Kala Health Inc.
- ↑ "About Dr. Stanley Jacob". DMSO.org.