|
Eye Transplantation
Eye transplantation is the transplantation of the globe of the human eye from a donor to a recipient. Research directions Research efforts in whole eye transplantation (WET) are focused on its application in living human recipients, still some obstacles need to be addressed. Apart from the surgical and neurological considerations, there are key ethical concerns such as patients' perceptions and desires for both nonvision-restoring WET and vision-restoring WET, risks and benefits compared to prosthetic alternatives, psychosocial considerations for potential recipients regarding personal identity related to the donor's eyes, public perceptions of whole-eye donation, implications for corneal transplantation eligibility of the donor's eyes, consent for whole-eye donation, and establishment of ethical mechanisms for allocation and distribution of WET. With limited studies available on this topic since the first vascularized composite allotransplantation (VCA) took place in 1998, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophthalmology
Ophthalmology ( ) is a surgical subspecialty within medicine that deals with the diagnosis and treatment of eye disorders. An ophthalmologist is a physician who undergoes subspecialty training in medical and surgical eye care. Following a medical degree, a doctor specialising in ophthalmology must pursue additional postgraduate residency training specific to that field. This may include a one-year integrated internship that involves more general medical training in other fields such as internal medicine or general surgery. Following residency, additional specialty training (or fellowship) may be sought in a particular aspect of eye pathology. Ophthalmologists prescribe medications to treat eye diseases, implement laser therapy, and perform surgery when needed. Ophthalmologists provide both primary and specialty eye care - medical and surgical. Most ophthalmologists participate in academic research on eye diseases at some point in their training and many include research as part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Texas Medical Center
The Texas Medical Center (TMC) is a medical district and neighborhood in south-central Houston, Texas, United States, immediately south of the Museum District and west of Texas State Highway 288. Over 60 medical institutions, largely concentrated in a triangular area between Brays Bayou, Rice University, and Hermann Park, are members of the Texas Medical Center Corporation—a non-profit umbrella organization—which constitutes the largest medical complex in the world. The TMC has an extremely high density of clinical facilities for patient care, basic science, and translational research. The Texas Medical Center employs over 106,000 people, hosts 10 million patient encounters annually, and has a gross domestic product of US$25 billion. Over the decades, the TMC has expanded south of Brays Bayou towards NRG Park, and the organization has developed ambitious plans for a new "innovation campus" south of the river. The Medical Center / Astrodome area, highly populated with medical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corneal Transplantation
Corneal transplantation, also known as corneal grafting, is a surgical procedure where a damaged or diseased cornea is replaced by donated corneal tissue (the graft). When the entire cornea is replaced it is known as penetrating keratoplasty and when only part of the cornea is replaced it is known as lamellar keratoplasty. Keratoplasty simply means surgery to the cornea. The graft is taken from a recently deceased individual with no known diseases or other factors that may affect the chance of survival of the donated tissue or the health of the recipient. The cornea is the transparent front part of the eye that covers the iris, pupil and anterior chamber. The surgical procedure is performed by ophthalmologists, physicians who specialize in eyes, and is often done on an outpatient basis. Donors can be of any age, as is shown in the case of Janis Babson, who donated her eyes after dying at the age of 10. Corneal transplantation is performed when medicines, keratoconus conservat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adult Stem Cell
Adult stem cells are undifferentiated cells, found throughout the body after development, that multiply by cell division to replenish dying cells and regenerate damaged tissues. Also known as somatic stem cells (from Greek σωματικóς, meaning ''of the body''), they can be found in juvenile, adult animals, and humans, unlike embryonic stem cells. Scientific interest in adult stem cells is centered around two main characteristics. The first of which, being their ability to divide or self-renew indefinitely, and secondly, their ability to generate all the cell types of the organ from which they originate, potentially regenerating the entire organ from a few cells. Unlike embryonic stem cells, the use of human adult stem cells in research and therapy is not considered to be controversial, as they are derived from adult tissue samples rather than human embryos designated for scientific research. The main functions of adult stem cells are to replace cells that are at risk ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High-voltage Power Line
Electric power transmission is the bulk movement of electrical energy from a power generation, generating site, such as a power plant, to an electrical substation. The interconnected lines that facilitate this movement form a ''transmission network''. This is distinct from the local wiring between high-voltage substations and customers, which is typically referred to as electric power distribution. The combined transmission and distribution network is part of electricity delivery, known as the electrical grid. Efficient long-distance transmission of electric power requires high voltages. This reduces the losses produced by strong Electric current, currents. Transmission lines use either High voltage, alternating current (HVAC) or high-voltage direct current, direct current (HVDC). The voltage level is changed with transformers. The voltage is stepped up for transmission, then reduced for local distribution. A wide area synchronous grid, known as an "interconnection" in North A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Face Transplant
A face transplant is a medical procedure to replace all or part of a person's face using tissue from a donor. Part of a field called "Vascularized Composite Tissue Allotransplantation" (VCA) it involves the transplantation of facial skin, the nasal structure, the nose, the lips, the muscles of facial movement used for expression, the nerves that provide sensation, and, potentially, the bones that support the face. The recipient of a face transplant will take life-long medications to suppress the immune system and fight off rejection. The world's first partial face transplant on a living human was carried out in France in 2005. The world's first full face transplant was completed in Spain in 2010. Turkey, France, the United States and Spain (in order of total number of successful face transplants performed) are considered the leading countries in the research into the procedure. Beneficiaries of face transplant People with faces disfigured by trauma, burns, disease, or birth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reuters
Reuters ( ) is a news agency owned by Thomson Reuters Corporation. It employs around 2,500 journalists and 600 photojournalists in about 200 locations worldwide. Reuters is one of the largest news agencies in the world. The agency was established in London in 1851 by the German-born Paul Reuter. It was acquired by the Thomson Corporation of Canada in 2008 and now makes up the media division of Thomson Reuters. History 19th century Paul Reuter worked at a book-publishing firm in Berlin and was involved in distributing radical pamphlets at the beginning of the Revolutions in 1848. These publications brought much attention to Reuter, who in 1850 developed a prototype news service in Aachen using homing pigeons and electric telegraphy from 1851 on, in order to transmit messages between Brussels and Aachen, in what today is Aachen's Reuters House. Reuter moved to London in 1851 and established a news wire agency at the London Royal Exchange. Headquartered in London, Reuter' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NYU Langone Health
NYU Langone Health is an academic medical center located in New York City, New York, United States. The health system consists of NYU Grossman School of Medicine and NYU Long Island School of Medicine, both part of New York University (NYU), and more than 300 locations throughout the New York metropolitan area, including six inpatient facilities: Tisch Hospital, Kimmel Pavilion, NYU Langone Orthopedic Hospital, Hassenfeld Children's Hospital, NYU Langone Hospital – Brooklyn and NYU Langone Hospital – Long Island. It is also home to Rusk Rehabilitation Institute. NYU Langone Health is ranked number 3 in the nation and number 1 in New York State on '' U.S. News & World Report’s'' 2022–23 “Best Hospitals Honor Roll”. NYU Grossman School of Medicine is ranked number 2 in the nation on ''U.S. News & World Report’s'' 2022–23 list of “Best Graduate Schools for Research”, rising from number 34 in 2010. Rusk Rehabilitation is consistently ranked one of the top 10 rehab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Journal Of Ophthalmology
''American Journal of Ophthalmology'' is a monthly peer-reviewed medical journal covering ophthalmology. It was established in 1884 and is published by Elsevier. The editor-in-chief is Richard K. Parrish II (Bascom Palmer Eye Institute). Indexing and abstracting The journal is indexed and abstracted in the following databases: See also *''British Journal of Ophthalmology'' *''Ophthalmology Ophthalmology ( ) is a surgical subspecialty within medicine that deals with the diagnosis and treatment of eye disorders. An ophthalmologist is a physician who undergoes subspecialty training in medical and surgical eye care. Following a medic ...'' References External links * Ophthalmology journals Elsevier academic journals English-language journals Publications established in 1884 Monthly journals {{med-journal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Retraction In Academic Publishing
In academic publishing, a retraction is the action by which a published paper in an academic journal is removed from the journal. Procedure A retraction may be initiated by the editors of a journal, or by the author(s) of the papers (or their institution). Retractions are typically accompanied by a retraction notice written by the editors or authors explaining the reason for the retraction. Such notices may also include a note from the authors with apologies for the previous error and/or expressions of gratitude to persons who disclosed the error to the author. A lesser withdrawal of content than a full retraction may be labelled a correction. There have been numerous examples of retracted scientific publications. Retraction Watch provides updates on new retractions, and discusses general issues in relation to retractions. History A 2011 paper in the ''Journal of Medical Ethics'' attempted to quantify retraction rates in PubMed over time to determine if the rate was increa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Immunosuppressing Medication
Immunosuppressive drugs, also known as immunosuppressive agents, immunosuppressants and antirejection medications, are drugs that inhibit or prevent activity of the immune system. Classification Immunosuppressive drugs can be classified into five groups: * glucocorticoids * cytostatics * antibodies * drugs acting on immunophilins * other drugs Glucocorticoids In pharmacologic (supraphysiologic) doses, glucocorticoids, such as prednisone, dexamethasone, and hydrocortisone are used to suppress various allergic, inflammatory, and autoimmune disorders. They are also administered as posttransplantory immunosuppressants to prevent the acute transplant rejection and graft-versus-host disease. Nevertheless, they do not prevent an infection and also inhibit later reparative processes. Immunosuppressive mechanism Glucocorticoids suppress cell-mediated immunity. They act by inhibiting genes that code for the cytokines Interleukin 1 (IL-1), IL-2, IL-3, IL-4, IL-5, IL-6 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neurosurgery
Neurosurgery or neurological surgery, known in common parlance as brain surgery, is the medical specialty concerned with the surgical treatment of disorders which affect any portion of the nervous system including the brain, spinal cord and peripheral nervous system. Education and context In different countries, there are different requirements for an individual to legally practice neurosurgery, and there are varying methods through which they must be educated. In most countries, neurosurgeon training requires a minimum period of seven years after graduating from medical school. United States In the United States, a neurosurgeon must generally complete four years of undergraduate education, four years of medical school, and seven years of residency (PGY-1-7). Most, but not all, residency programs have some component of basic science or clinical research. Neurosurgeons may pursue additional training in the form of a fellowship after residency, or, in some cases, as a senior resid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
