PubMed Health⌕ Search

Biomedical subjects

M Noya

Publications and source records attributed to M Noya.

At least 19 recordsLinked to original sources
PubMed1992

[The results of drug holiday in Parkinson's disease].

The transitory suppression of L-dopa in patients with advanced Parkinson's disease improves motor response upon reintroduction of the drug although this improvement is not constant. The degree and duration of clinical improvement obtained following L-dopa drug holiday were studied and the factors which may intervene in the result of 32 patients with Parkinson's disease were analyzed. Improvement was found in 100% (24.9 +/- 6.7%) with significant differences being observed in the degree of disability (p < 0.05) and the final decrease of the doses of L-dopa (p < 0.05). Improvement was maintained during 10.3 +/- 7.9 weeks. Linear regression studies did not show any relation between the length of the drug holiday, longer than 4 days, and the degree and maintenance of improvement or final decrease of the doses of L-dopa. The authors consider this procedure useful in patients with important fluctuations in treatment response or with important refractory side effects to other measures.

Adult↗
PubMed1992

[Rhombencephalitis caused by Listeria monocytogenes].

The observation of an abscess in the brain stem and cerebellum due to Listeria monocytogenes is presented. The patient was a 55 year old diabetic, alcoholic, gastrectomized male in whom a febrile and meningeal syndrome developed. Three days later he had a progressive unilateral dysfunction of the cranial nerves. The cerebrospinal fluid showed pleocytosis of the polymorphonuclear cells, an increase in proteins and low glucose in relation with the glycemia. No parenchymatous lesion was observed upon emergency computerized tomography. Magnetic resonance imaging showed a hyper-signal lesion in the brain stem and cerebellum with a contrast enhancement in ring. Following antibiotic treatment the clinical evolution of the patient was favorable with slight focal sequelae persistent at discharge. A review of the epidemiology, clinical manifestations and treatment of this infection is carried out.

Encephalitis↗
PubMed1992

[Biologic markers in multiple sclerosis (I). Clinical correlations].

Seven biological markers were studied in a population of 236 patients (144 females, 92 males) with multiple sclerosis as was the relation with the different degrees of diagnostic certainty (Rose and Poser scales), the time of evolution and number of bouts of the disease. The IgG concentrations, IgG ratio and the quantification of the intrathecal IgG synthesis by the Tourtellotte formula isolatedly constituted the most sensitive biological markers for the diagnosis of multiple sclerosis. Altogether, the determination of the number of cells, IgG and the IgG ratio achieved diagnostic sensitivity of 94% for defined multiple sclerosis. The IgG ratio was the most closely related biological marker related with the number of bouts and the time of evolution of the disease.

Adult↗
PubMed1992

[Biologic markers in multiple sclerosis (and II). Neurophysiologic and imaging correlations].

The relation between the results of 7 biological markers (cells, total protein, albumin, IgG, IgG ratio, Tibbling ratio, and Tourtellotte's formula) and 4 paraclinical tests (PEV, PEATC, CT and MR) in 236 patients with multiple sclerosis (MS) not selected by the localization of symptoms were studied. One hundred forty-one had clinically defined MS, 22 had defined MS supported by a laboratory and 68 had clinically probable MS. The existence of a relation between PEV and MRI abnormality and the increase in the concentration and the ratios of intrathecal IgG synthesis and the degree of certainty of disease diagnosis was demonstrated. The most sensitive test was MRI (93%) followed by VEP (83%) and BAEP (60%) and the sensitivity of the study with high resolution CT including 59 patients explored by double enhancement and delayed cut off was very low (33%). It was considered that for the lack of a specific diagnostic test the use of biological markers PEV and MR constituted a necessary aid in the diagnosis of MS.

Adult↗
PubMed1991

Bone anomalies in myotonic dystrophy.

Sixteen patients with myotonic dystrophy underwent CT examination of the skull, and measurement of bone mineral density at lumbar spine and hip by dual-photon absortiometry. The results were compared with those of 20 normal subjects of similar age and sex distribution. Hyperostosis of the calvarium, and increased bone mineral density at lumbar vertebrae were observed. One case showed basal ganglia calcification associated with hyperparathyroidism secondary to deficiency of vitamin D. In the other 15 patients, studies of calcium metabolism were normal. There results suggest the existence of generalized hyperostotic potential in patients with myotonic dystrophy.

Adolescent↗
PubMed1991

[Platelets and migraine. Correlation between biochemical markers of platelet aggregation and serotonin].

The correlation between the biochemical markers of platelet activation and serotonin in migraine was investigated. The beta-thromboglobulin (beta-TG), platelet factor 4 (PF-4) and serotonin levels in 105 patients with migraine were measured. The results confirmed an increase in beta-TG and PF4 levels and a reduction in serotonin levels during the migraine attacks. However, we did not find a significant correlation between these fluctuations. These findings suggest the existence of extraplatelet mechanism in the pathophysiology of migraine.

Adolescent↗
PubMed1975

[Alpha fetoproteins].

Explore the source record for details and available documents.

Amino Acid Metabolism, Inborn Errors↗