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INFO: Full form for PCCC is Pediatric Cardiac Care Center in Medical category
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INFO: Full form for PNE is Poly-Neuronic Ectopy in Medical category
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INFO: Full form for MUB is Medicaid Uniform Billing in Medical category
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INFO: Full form for NANPA is North Alabama Nurse Practitioner Association in Medical category
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Lesch–Nyhan syndrome (LNS) is a rare inherited disorder caused by a deficiency of the enzyme hypoxanthine-guanine phosphoribosyltransferase (HGPRT). This deficiency occurs due to mutations in the HPRT1 gene located on the X chromosome. LNS affects about 1 in 380,000 live births. The disorder was first recognized and clinically characterized by American medical student Michael Lesch and his mentor, pediatrician William Nyhan, at Johns Hopkins.

The HGPRT deficiency causes a build-up of uric acid in all body fluids. The combination of increased synthesis and decreased utilization of purines leads to high levels of uric acid production. This results in both high levels of uric acid in the blood and urine, associated with severe gout and kidney problems. Neurological signs include poor muscle control and moderate intellectual disability. These complications usually appear in the first year of life. Beginning in the second year of life, a particularly striking feature of LNS is self-mutilating behaviors, characterized by lip and finger biting. Neurological symptoms include facial grimacing, involuntary writhing, and repetitive movements of the arms and legs similar to those seen in Huntington's disease. The cause of the neurological abnormalities remains unknown. Because a lack of HGPRT causes the body to poorly utilize vitamin B12, some males may develop megaloblastic anemia.

LNS is inherited in an X-linked recessive manner; the gene mutation is usually carried by the mother and passed on to her son, although one-third of all cases arise de novo (from new mutations) and do not have a family history. LNS is present at birth in baby boys. Most, but not all, persons with this deficiency have severe mental and physical problems throughout life. Cases in females are very rare.

The symptoms caused by the buildup of uric acid (gout and kidney symptoms) respond well to treatment with medications such as allopurinol that reduce the levels of uric acid in the blood. The mental deficits and self-mutilating behavior do not respond well to treatment. There is no cure, but many affected people live to adulthood. Several new experimental treatments may alleviate symptoms.

INFO: Full form for LNS is Laboratory for Neutron Scattering in Medical category
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INFO: Full form for LNS is Laboratory for Nuclear Science in Medical category
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Marie Curie is a registered charitable organisation in the United Kingdom which provides care and support to people with terminal illnesses and their families. It was established in 1948, the same year as the National Health Service.

In financial year 2014/15 the charity provided care to 40,000 terminally ill patients in the community and in its nine hospices, along with support for their families. More than 2,700 nurses, doctors and other healthcare professionals help provide this care.

At the nine Marie Curie Hospices, quality of life for patients is actively promoted and the hospices also provide support for their carers. Marie Curie provides the largest number of hospice beds outside the National Health Service.

INFO: Full form for LSO is Left Salpingo-Oophorectomy in Medical category
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INFO: Full form for LSO is Line Scaning Opthalmoscope in Medical category
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INFO: Full form for LSO is Lutetium OxyorthoSilicate in Medical category
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INFO: Full form for LSO is Last Subject Out in Medical category
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INFO: Full form for LSO is Lumbar Sacral Orthosis in Medical category
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INFO: Full form for LHS is Lung Health Study in Medical category
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INFO: Full form for MRPC is Medical Radiation Protection Committee in Medical category
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INFO: Full form for MRU is Medical Rehabilitation Unit in Medical category
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INFO: Full form for MRU is Medical Response Unit in Medical category
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Neuroendocrine tumors (NETs) are neoplasms that arise from cells of the endocrine (hormonal) and nervous systems. They most commonly occur in the intestine, where they are often called carcinoid tumors, but they are also found in the pancreas, lung, and the rest of the body.

Although there are many kinds of NETs, they are treated as a group of tissue because the cells of these neoplasms share common features, such as looking similar, having special secretory granules, and often producing biogenic amines and polypeptide hormones.

INFO: Full form for NEC is Non-Esterified Cholesterol in Medical category
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Neuroendocrine cells are cells that receive neuronal input (neurotransmitters released by nerve cells or neurosecretory cells) and, as a consequence of this input, release message molecules (hormones) into the blood. In this way they bring about an integration between the nervous system and the endocrine system, a process known as neuroendocrine integration. An example of a neuroendocrine cell is a cell of the adrenal medulla (innermost part of the adrenal gland), which releases adrenaline to the blood. The adrenal medullary cells are controlled by the sympathetic division of the autonomic nervous system. These cells are modified postganglionic neurons. Autonomic nerve fibers lead directly to them from the central nervous system. The adrenal medullary hormones are kept in vesicles much in the same way neurotransmitters are kept in neuronal vesicles. Hormonal effects can last up to ten times longer than those of neurotransmitters. Sympathetic nerve fiber impulses stimulate the release of adrenal medullary hormones. In this way the sympathetic division of the autonomic nervous system and the medullary secretions function together.

The major center of neuroendocrine integration in the body is found in the hypothalamus and the pituitary gland. Here hypothalamic neurosecretory cells release factors to the blood. Some of these factors (releasing hormones), released at the hypothalamic median eminence, control the secretion of pituitary hormones, while others (the hormones oxytocin and vasopressin) are released directly into the blood.

APUD cells are considered part of the neuroendocrine system, and share many staining properties with neuroendocrine cells.

INFO: Full form for NEC is NECrosis in Medical category
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INFO: Full form for NEC is Neuro Emotional Complex in Medical category
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INFO: Full form for NEC is Nursing Ethics Committee in Medical category
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INFO: Full form for NEC is No Evidence of Cancer in Medical category
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Necrotizing enterocolitis (NEC) is a devastating intestinal disease that affects premature or very low birth weight infants. Symptoms may include poor feeding, bloating, decreased activity, blood in the stool, vomiting of bile, bowel death, multiorgan failure, and even death.

The exact cause is unclear. However, several risk factors have been identified. Consistently described risk factors include formula feeding, intestinal dysbiosis, low birth weight, and prematurity. Maternal factors such as chorioamnionitis, cocaine abuse, in utero growth restriction, intrahepatic cholestasis during pregnancy, increased body mass index, lack of prenatal steroids, mode of delivery, placental abruption, preeclampsia, and smoking have not been consistently implicated with the development of NEC. Other risk factors potentially implicated include congenital heart disease, birth asphyxia, exchange transfusion, and prelabor rupture of membranes. The underlying mechanism is believed to involve a combination of poor blood flow and infection of the intestines. Diagnosis is based on symptoms and confirmed with medical imaging.

Prevention includes the use of breast milk and probiotics. Treatment includes bowel rest, orogastric tube, intravenous fluids, and intravenous antibiotics. Surgery is required in those who have free air in the abdomen. A number of other supportive measures may also be required. Complications may include short-gut syndrome, intestinal strictures, or developmental delay.

About 7% of those who are born prematurely develop NEC; however the odds of an infant developing this illness is directly related to the intensive care unit they are placed in. Onset is typically in the first four weeks of life. Among those affected, about 25% die. The sexes are affected with equal frequency. The condition was first described between 1888 and 1891.

The term narcotic (, from ancient Greek ναρκῶ narkō, "to make numb") originally referred medically to any psychoactive compound with numbing or paralysing properties. In the United States, it has since become associated with opiates and opioids, commonly morphine and heroin, as well as derivatives of many of the compounds found within raw opium latex. The primary three are morphine, codeine, and thebaine (while thebaine itself is only very mildly psychoactive, it is a crucial precursor in the vast majority of semi-synthetic opioids, such as oxycodone or hydrocodone).

Legally speaking, the term "narcotic" may be imprecisely defined and typically has negative connotations. When used in a legal context in the U.S., a narcotic drug is totally prohibited, such as heroin, or one that is used in violation of governmental regulation.

In the medical community, the term is more precisely defined and generally does not carry the same negative connotations.

Statutory classification of a drug as a narcotic often increases the penalties for violation of drug control statutes. For example, although U.S. federal law classifies both cocaine and amphetamines as "Schedule II" drugs, the penalty for possession of cocaine is greater than the penalty for possession of amphetamines because cocaine, unlike amphetamines, is classified as a narcotic.