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)

Intermittent hyperthyreosis occurs under various forms of stress, especially heat stress. The clinician may diagnose such cases as masked or apathetic hyperthyroidism or "forme fruste" hyperthyreosis or thyroid autonomy. As most routine and standard tests may here yield inconsistent results, it is the patients' anamnesis which may provide the clue. Our Bioclimatology Unit has now seen over 100 cases in which thyroid hypersensitivity towards heat was the most prominent syndrome: 10-15% of weather-sensitive patients are affected. The patients complain before or during heat spells of such contradictory symptoms as insomnia, irritability, tension, tachycardia, palpitations, precordial pain, dyspnoe, flushes with sweating or chills, tremor, abdominal pain or diarrhea, polyuria or pollakisuria, weight loss in spite of ravenous appetite, fatigue, exhaustion, depression, adynamia, lack of concentration and confusion. Determination of urinary neurohormones allows a differential diagnosis, intermittent hyperthyreosis being characterized by three cardinal symptoms: 1. tachycardia -- every case with more than 80 pulse beats being suspect (not specific); 2. urinary histamine -- every case excreting more than 90 mug/day being suspect. Again the drawback of this test is its lack of specificity, as histamine may also be increased in cases of allergy and spondylitis; 3. urinary thyroxine -- every case excreting more than 20 mug/day T-4 being suspect. This is the only specific test. Therapy should make use of lithium carbonate and beta-blockers. Propyl thiouracil is rarely required.
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PMID:Intermittent hyperthyreosis -- a heat stress syndrome. 5 84

The efficacy of lithium carbonate was studied in 18 chronic alcoholic male patients in withdrawal. In mild alcoholic withdrawal, oral lithium carbonate, 0.3 gm every 8 hr, diminishes subjective symptoms of withdrawal and normalizes performance on a motor tracking task. Patients who start lithium while drinking ethanol improve most probably because it takes longer than 3 days for lithium concentrations in the blood to plateau. Lithium does not importantly alter patterns of catecholamine excretion, blood pressures, heart rate, serum cyclic-adenosine monophosphate (AMP), serum dopamine beta-hydroxylase (DBH), sleep pattern, or tremor amplitude during withdrawal.
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PMID:Lithium treatment during alcoholic withdrawal. 18 Nov 93

In a cross-over study with Pindolol, 15 mg/day, against placebo, we studied during 4 weeks 22 patients aged between 20 and 65 years who where treated by means of lithium carbonate retard (Quilonum Retard). The tremor was measured twice a week by means of three apparative methods: an accelerometer, a 'hole-plate' and an 'aimed tapping plate', both constructed by Janke, and was also studied by means of a self-evaluation rating-scale. We obtained a positive therapeutic effect of Pindolol on lithium-induced tremor, which was statistically significant by means of the 'hole-plate' and of self-evaluation. Differences in results are discussed.
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PMID:[Treatment of lithium tremor with the beta receptor blocker, pindolol]. 39 54

The relation between lithium dose, lithium concentrations, and lithium gradients in plasma and the side effects tremor, nausea, abdominal pains, and loose bowels was studied in 19 subjects. Rapidly dissolving lithium carbonate tablets were used. Tremor was related to higher doses, to higher concentrations, and to higher gradients of lithium in plasma. Nausea was related to higher gradients. Abdominal pain and loose bowels showed no relation to doses, levels or gradients. Concentrations of lithium were dose-dependent, while gradients were relatively independent of dose.
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PMID:Lithium side effects in relation to dose and to levels and gradients of lithium in plasma. 84 39

With its chronic administration in a dose of 100 mg/kg lithium carbonate inhibited shaking of the head induced in mice with 5-hydroxytryptophan (5-HTP). This effect did not differ from the action following a single injection of lithium, when the interval between injection of lithium and of 5-HTP was one hour. With the interval lengthened to 24 hours the frequency of shaking diminished only under the effect of chronic administration. At the 5th, 10th and 21st day of a daily administration lithium failed to produce any effect on the hypothermal action of a reserpine-like agent Po 4-1284, but would reduce the protective action of imipramine in a ptosis test. A single injection of lithium made against the background of a chronic injection of water produced an opposite effect, viz. it significantly reduced the protective action of imipramine in hypothermia, but did not affect it with reference to ptosis. Hence, chronic administration of lithium leads to potentiation in its action of the serotonin-negative and central adreno-negative componets and to extenuating the peripheral adreno-negative component.
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PMID:[Effect of lithium on the central serotonin- and adrenergic processes after its chronic administration]. 108 64

One cannot base a posology only upon morning lithiemy which turns out to be an unreliable criterion. It is useful to appreciate therapy equilibration through lithiemic cycle i.e. and every two hours dosage among patients on lithium carbonate or gluconate. Certain patients with quite an insufficient lithiemic morning level may be well equilibrated during day time. Lithiemy variations during the day are constantly reliable with the same patient. The study of nycthemeral variations among lithium salts treated patients allows us to understand some pathological subphenomena : intermittent tremor, subconfusional transitory onsets. Lastly lithiemic cycles allow comparison between lithiemy variations in manic or depressive relapses.
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PMID:[Pharmacoclinical value of the study of lithium cycles during 24 hours]. 117 2

The utility and side effects of sustained-release lithium carbonate (Priadel) in a once-per-day dose regimen was investigated with 66 male delinquents, ages 17-24 years, in a double-blind study comparing the antiaggressive effect of lithium carbonate with placebo. Serum lithium levels and symptoms were determined weekly for up to eight drug-free and 12 on-medication weeks. Average daily doses of 1500-1700 mg Priadel gave 24-hour serum lithium levels in the range 0.7-0.9 mEq/liter. Principal side effects were polyuria and shakiness, with other important side effects bring hand tremor, dryness of mouth, nausea, and weakness. No lithium toxicity was observed, and diarrhea was reported infrequently. Placebo response data are presented.
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PMID:Sustained-release lithium carbonate in double-blind study: serum lithium levels, side effects, and placebo response. 126 38

A protocol for the biochemical study of platelet stored for transfusional use at 22 degrees C and under continuous shaking in a plastic bag highly permeable to gases and with a suitable area/volume ratio, is described. Plasmatic dextrose, lactic acid, lactic dehydrogenase activity, cellular ATP and malonyldialdehyde were monitored during the storage, as well as some acid-base indexes namely: pH, pCO2, HCO3-, pO2. The platelet functional status was checked as aggregating power induced by ADP and collagen and by beta-thromboglobulin release. The results obtained are indicative of a discrete maintenance of aerobic metabolism by platelets which are able to give up CO2 and take up O2 so that the plasmatic pH is constant during the storage. However, the malonyldialdehyde increase suggests that platelets become increasingly susceptible to peroxidative attacks. The aggregating response was dramatically reduced even on the third day of storage. The data obtained point out that, under the conditions reported, platelets can be transfused up to the third day of storage.
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PMID:Biochemical and functional changes of platelet stored for transfusional use. 244 9

An insoluble graft copolymer consisting of the covalently bound polyoxyethylene to cross-linked polystyrene (HO-POE-PS) was prepared by anionic polymerization of ethylene oxide on the resin. The copolymer was then converted to the corresponding amino-polymer (H2N-POE-PS) and the latter was employed as the solid carrier for peptide synthesis. Although HO-POE-PS has successfully been employed as a carrier for peptide synthesis by the standard shaking procedure using t-butoxycarbonyl-amino acids, now we deemed it of interest to test its suitability for the continuous flow synthesis. Thus, the C-terminal octapeptide of the porcine insulin B chain (B23-30) was prepared by this procedure using a photolabile anchoring group and fluoren-9-ylmethoxycarbonyl-amino acids. All the reactions were carried out in a continuous flow manner in a steel column under pressure using a high-performance liquid chromatography (HPLC) system. At the end of the synthesis, a sample of the protected peptide was cleaved from the support by photolysis. For the cleavage of another sample, an aqueous solution of sodium carbonate was employed. The protected peptide was purified on silica gel and Sephadex-LH 20. All the protecting groups of a sample of the octapeptide were removed with piperidine/dimethylformamide and trifluoroacetic acid and the deblocked peptide was purified by ion-exchange chromatography. The free peptide was shown to be homogeneous by thin-layer chromatography, HPLC, and electrophoresis. The identify of the free octapeptide was confirmed by amino-acid analysis, 13C-nuclear magnetic resonance measurement and field-desorption mass spectrometry. The peptide was also shown to be free of racemization.
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PMID:Continuous flow peptide synthesis on aminopolyoxyethylene-polystyrene graft copolymer using Fmoc-strategy. 304 90

A method for the determination of alprenolol and its 4-hydroxy metabolite has been developed. The urine sample is made alkaline with buffer (pH 12) and derivatized with 60 microliter of 2 M phosgene in toluene with vigorous shaking. In the presence of 2.5% methanol, an oxazolidineone methyl carbonate is formed from 4-hydroxy alprenolol. The now neutral derivatives are extracted with an equal volume of dichloromethane. After evaporation of the organic phase, the residue is taken up in a small volume of ethyl acetate and subjected to capillary column gas chromatography with CP-Sil 8 as the stationary phase. The precision was 2.1% at the 3.3 micrograms/ml level of the metabolite in urine (n = 8). The isopentylamino analogue was used as the internal standard.
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PMID:Direct derivatization of alprenolol and its 4-hydroxy metabolite in urine with phosgene and methanol prior to analysis by capillary column gas chromatography. 408 47


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