Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0040822 (tremor)
 18,428 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A young pregnant woman developed a persistent dystonic head tremor a few days after Rho (D) immune globulin administration; further deterioration occurred after a second administration of Rh(o) (D) immune globulin with the development of marked retrocollis. This persisted and she was treated 2 months later with a 5-day course of intravenous (1 g daily) methylprednisolone (IVMP) with resolution of her condition. We proceeded to treat similarly the next four patients with idiopathic cervical dystonia who were seen in our practice and who had current symptoms of less than 6 months duration. One also experienced persistent resolution and another had a marked, but transient, improvement after each of two separate courses of IVMP. The other two patients did not have improvement. This suggests a possible autoimmune pathogenesis for a limited subset of cervical dystonia. However, identifying which cases of recent-onset cervical dystonia will respond to IVMP therapy has yet to be determined.
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PMID:Treatment of putative immune-mediated and idiopathic cervical dystonia with intravenous methylprednisolone. 906 56

This study investigates the possible relationships between fluctuations in finger tremor amplitude and the performance of visual saccades. Saccadic eye movements were analyzed in five subjects with Parkinson's disease (PD) and five age-matched controls. Tremor was recorded by using a position laser system, and eye movements were recorded with an infrared reflectometry technique (Ober2). Tremor amplitude (root mean square) was significantly larger in the group of subjects with PD (2.87 +/- 4.37 mm) than in the control group (0.017 +/- 0.005 mm, U = 0, p < 0.01). In addition, subjects with PD showed more fluctuations in their tremor at rest (0.52 +/- 0.98 mm versus 0.003 +/- 0.006 mm, U = 1, p < 0.05). Latency, saccade error and percentage of predictive saccades were not significantly different between subjects with PD and control subjects. Average saccade amplitude was smaller in the group of subjects with PD (16.1 +/- 2.31 degrees ) than in the control group (18.49 +/- 3.62 degrees , U = 1, p < 0.05). Spearman's rank correlation coefficient showed no direct relationship between saccade amplitude and changes in tremor amplitude at the time of each saccade but, in general, subjects with PD who had more fluctuations in their tremor at rest had also more fluctuations in their saccade error (Rho = 0.9). These results suggest that the mechanisms causing short-term fluctuations in tremor at rest do not directly influence the visual saccadic system.
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PMID:Fluctuations in tremor at rest and saccadic eye movements in subjects with Parkinsons disease. 1859 Oct 76

This study examined the effects of Y-27632, a selective Rho-kinase inhibitor, on organophosphate-induced acute toxicity in rats. Rats were randomly divided into four groups as control (corn oil), dichlorvos (30 mg kg(-1) i.p.), 1 and 10 mg kg(-1) Y-27632 + dichlorvos groups. Cholinergic signs (fatigue, tremor, cyanosis, hyper-secretion, fasciculations) were observed in all the rats in the dichlorvos group and the mortality rate was 50%. No cholinergic findings and deaths were observed in the control and Y-27632 groups. Plasma cholinesterase activities were suppressed with dichlorvos and these reductions were attenuated with Y-27632 pretreatment. There was a marked increase in plasma malondialdehyde level in the dichlorvos group, but Y-27632 pretreatment abolished this elevation. Dichlorvos markedly depressed cardiac paraoxonase activity, but these changes were not markedly modified with Y-27632. Total antioxidant capacities, total oxidant status, oxidative stress index, total free sulfhydryl groups and catalase activities in plasma and cardiac tissues were not markedly different between the groups. No significant changes were observed with cardiac myeloperoxidase activities or plasma arylesterase and ceruloplasmin activities. In conclusion, our results suggest that Rho-kinase pathway is involved in organophosphate intoxication, and a decrease in cardiac paraoxonase activities may play a role in the pathogenesis of acute organophosphate poisoning in rats.
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PMID:Effects of a selective Rho-kinase inhibitor Y-27632 on oxidative stress parameters in acute dichlorvos poisoning in rats. 1863 19