Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0027960 (mole)
 21,279 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A case of a thirteen-year old boy is reported with congenital pigmented nevi on the large part of the trunk and on the extremities. From his age of six generalised epileptiform convulsions were present. Owing to the suspicion of intracranial process he was examined with a negative result. He died of brain edema. On section cerebrospinal leptomeningeal melanocytosis was found beside the nevi. In addition to the clinical findings and treatment the morphological lesions are detailed too at macroscopic, microscopic and ultrastructural level discussing the possibility of the malignisation.
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PMID:[Giant pigmented nevus associated with leptomeningeal melanocytosis]. 140 56

The relationship between brain myelination and nutritional insufficiency in suckling rats whose dams had a restricted dietary intake was studied. The undernourished pups were characterized by body weight and brain weight that were 40-70% and 82-88% that of controls throughout the suckling period. Myelin concentrations, whether expressed as mg protein or as mg myelin dry weight per g wet brain, were 30-40% of normally fed controls. Myelin of undernourished rats contained total lipid, cholesterol, phospholipids, and sphingolipids that were 42, 54, 39, and 48%, respectively of the control counterparts. There was no change in the mole ratio of cholesterol:phospholipids:sphingolipids (i.e., cerebroside + sulfatide) in myelin from undernourished rats. Concentrations of individual phospholipids and sphingolipids were lowered by approximately the same percentage. Despite long-lasting, irreversible stunting of whole-body and brain growth, concentrations of myelin and myelin lipids returned to control levels after nutritional rehabilitation. Since the observed effects are different from those of more commonly used models, the present form of undernutrition may offer a useful system for studying the relationship between myelin lipids and brain development.
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PMID:Maternal dietary restriction causes myelin and lipid deficits in the brain of offspring. 337 50

Microtubules have been isolated from immature (3-4 weeks' old) and old (11-13 years' old) bovine brains. Quantitative studies revealed that the concentration of extractable microtubule protein per gram of wet brain decreased from 0.47 mg (immature animals) to 0.34 mg (old animals). The major components of microtubule protein (tubulin and high-molecular-weight microtubule-associated proteins) do not undergo an age-correlated change. Determination of the endogenous protein kinase activity revealed that the activity associated with "immature" calf brain microtubules was six times higher than the activity present in "old" preparations. In contrast, the stimulatory effect of cyclic AMP on protein phosphorylation in microtubules from old bovine brains exceeds nine-fold the value obtained from immature animals. After addition of casein (exogenous acceptor), the basal activities increased in both preparations without altering the age-correlated difference in the specific activity. By comparing the radioactivity pattern of sodium dodecyl sulfate polyacrylamide gels after autophosphorylation of microtubule protein with [gamma-32P]ATP, 1.5 moles of phosphate per mole of high-molecular-weight microtubule-associated protein were estimated to be incorporated in preparations from immature animals and 0.9 mole of phosphate per mole of associated protein in the experiments with "old" microtubule protein. Adenosine triphosphatase activity, associated with the high-molecular-weight microtubule-associated protein 1, was determined to be 15% reduced in preparations from old animals, compared to the activity in "young" preparations. In contrast, the guanosine triphosphatase activity increased five-fold during ageing; the higher activity of this enzyme was observed both during the initial and the steady-state phases of microtubule formation.
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PMID:Age-dependent alterations of microtubule-associated enzyme activities from bovine brain (protein kinase, adenosine triphosphatase, guanosine triphosphatase). 613 97

A 41-year-old woman presented with disturbance of consciousness, right hemiparesis, and symptoms of Gerstmann syndrome. She had a history of malignant melanoma resections of an ear mole and her right neck lymph nodes and parotid gland, with subsequent chemotherapy and radiotherapy. Computed tomography showed two large lesions in the right frontal and left parietal lobes surrounded by severe brain edema. Magnetic resonance images revealed that the two lesions were strongly enhanced with cystic change, and a small round lesion was located in the left head of the caudate nucleus. (18F) fluoro-2-deoxyglucose positron emission tomography showed high accumulation in both lesions, and no sign of metastatic lesions except within the brain. The two lesions were large, causing increased intracranial pressure. Simultaneous surgical resections were performed using two approaches. The patient's neurological symptoms were greatly improved after surgery, and her Karnofsky Performance Status improved from 20% to 90%. She was discharged to her home almost completely free of neurological deficits. Although, simultaneous one-stage tumor resections for multiple metastatic brain tumors do not extend the survival period, they improve the quality of the patient's limited remaining life, and may be a treatment choice for young patients with well-controlled systemic disease.
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PMID:Simultaneous surgical resections of two distant metastatic malignant melanoma lesions--case report. 2251 24