Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0015672 (fatigue)
 51,768 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

We studied five patients with a combination of Meige's syndrome (blepharospasm-oromandibular dystonia) and myasthenia gravis. The coexistence of two disorders impairing eyelid opening led to diagnostic confusion and delayed appropriate therapy. Detailed oculographic monitoring of one patient indicated that eye position drifting due to myasthenic oculomotor fatigue was corrected by eye blinks, and that blinks tended to occur with slower saccades. Our observations suggest that fatigue of extraocular muscles may lead to synkinetic blinking and perhaps eventually to autonomous blepharospasm.
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PMID:Coexistent Meige's syndrome and myasthenia gravis. A relationship between blinking and extraocular muscle fatigue? 363 79

Twenty-six patients with recurrent respiratory papillomatosis have received interferon administered according to one or more of five experimental protocols currently ongoing or completed at the University of Iowa. Short-term side effects following interferon administration were common and included fever, headache, chills, fatigue, myalgias, and nausea. Two patients experienced neurotoxicity manifested as somnolence, confusion, or petit mal type or grand mal type seizures. Preliminary data show evidence for some growth retardation in patients receiving long-term interferon therapy. Laboratory evidence of toxicity in the form of decreased WBC, RBC, and platelet counts occurred in five patients, and increased liver enzymes occurred in 16 patients. Neither cardiovascular nor renal toxicity was noted.
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PMID:Side effects and toxicity of interferon in the treatment of recurrent respiratory papillomatosis. 367 59

We tested the effect of beginning an exercise program on the mood of sedentary men who were free of psychopathology. Fourteen men were randomly assigned to either an exercise program or a control period for 12 weeks and then switched to the converse condition. The exercise was nonsocial and of moderate intensity. Exercise did not improve anger, tension, confusion, depression, fatigue, vigor, or total mood disturbance more than a control period. We conclude that beginning an exercise program, in itself, produces minimal psychological benefits. We hypothesize that other conditions, e.g. the presence of emotional problems, socialization along with exercise, or a training effect must be present for exercise to produce psychological benefits.
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PMID:Psychological effects of exercise: a randomized cross-over trial. 373 79

Mood changes of interns during the internship year were studied using the Profile of Mood States (POMS), a standardized adjective checklist. All 35 interns in the University of California, Irvine-Long Beach Medical Program completed the POMS at internship orientation and at five other times during the year. Of the six mood factors measured by the POMS, four changed significantly during the testing period. Anger-hostility scores were higher (p less than 0.01) in December than at orientation and remained so throughout the year. Tension-anxiety scores were higher (p less than 0.01) and fatigue-inertia scores were lower (p less than 0.01) at orientation than at any other time during the year. Vigor-activity scores were higher (p less than 0.01) at orientation than at the end of the year. Depression-dejection and confusion-bewilderment scores did not change significantly during the study period. Recognition of these mood changes is helpful for drawing the attention of house staff and faculty members to emotional stresses of training, and for identifying issues for discussion in intern support groups.
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PMID:Stress during internship: a prospective study of mood states. 377 96

This study is designed to identify psychologically meaningful correlates of high and low social functioning among alcoholics and to determine if High Social Alcoholics show greater changes between intake and 1 1/2 months into treatment than Low Social Alcoholics on various psycho-diagnostic measures. High Social group membership was found to be positively associated with scores at intake on the MCMI Compulsive-Conforming Scale. Low Social group membership was positively associated with scores on the POMS Depression-Dejection and Confusion-Bewilderment Scales; and on the MCMI Avoidant, Schizotypal, Passive-Aggressive, Psychotic Thinking, Psychotic Depression, Alcohol Abuse, and Borderline Scales. Repeated measures analyses revealed that, although both groups showed significant changes on a variety of measures, the High Social group showed significantly greater decreases between intake and 1 1/2 months into treatment than the Low Social group on the Avoidant, Dysthymic, Somatoform, and Anxiety Scales of the MCMI and on the Confusion-Bewilderment, Tension-Anxiety, and Fatigue-Inertia Scales of the POMS.
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PMID:Psychological correlates and treatment outcomes for high and low social functioning alcoholics. 378 94

Twelve patients with advanced malignant disease were entered onto a Phase I study of escalating doses of beta-interferon serine given by 4-h i.v. infusion twice a wk. Three patients each were entered at starting doses of 0.01, 1, 10, and 30 million units (MU)/m2. Doses escalation within individual patients was allowed to a maximum dose of 400 MU/m2. Fever, chills, fatigue, and acral cyanosis were commonly seen and increased in frequency at higher doses. Myalgia, nausea, diarrhea, headache, and confusion were seen at lesser frequencies. Mild leukopenia, paresthesia, infusion site erythema, and hypotension were each seen in one patient. No conventional maximal tolerated dose could be defined, since several patients underwent escalation to the highest allowable dose and seemed to develop tolerance to acute toxicities. However, a maximal starting dose of 10 MU/m2 was identified, such that those begun at this level or below tolerated semiweekly dose escalation, while those begun at 30 MU/m2 could not tolerate continued therapy. Detectable serum interferon levels were noted during treatment at 10 and 30 MU/m2, the levels at which significant toxicity also first appeared. A maximal starting dose of 10 MU/m2, with gradual escalation as tolerance to side effects develops, is suggested if therapy with high-dose beta-interferon serine is given by 4-h infusion.
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PMID:Phase I study of recombinant beta-interferon given by four-hour infusion. 380 98

Patients with chronic obstructive pulmonary disease (COPD) may incur exercise limitation by any one or combination of disturbances in breathing mechanics, oxygen transport, respiratory muscle metabolism or respiratory regulation and sensation. In spite of the increased ventilation demand/capacity ratio in these patients, the relationship between breathing mechanics, respiratory muscle fatigue, the adequacy of alveolar ventilation and the development of exertional dyspnoea is neither clearly defined nor predictable from data obtained with the patient at rest. The issue of oxygen transport during exercise has been complicated by confusion between arterial hypoxia and inadequate volume of oxygen transported to the tissues, which frequently may differ qualitatively and quantitatively. The cardiac output response to exercise in patients with COPD is therefore critical in determining oxygen transport. This response is also impossible to predict from resting lung mechanics, pulmonary arterial blood pressure, arterial oxygen tension or clinical disease profile. Without exercise testing, which includes measurement of all the variables mentioned, it is impossible to define clearly the cause of exercise-induced symptoms in patients with COPD. Exercise training with and without supplemental oxygen has been shown to improve exercise tolerance in these patients, but the precise mechanism of this improvement remains obscure.
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PMID:Exercise in patients with chronic obstructive pulmonary disease. 388 Sep 31

Since the introduction of ophthalmic timolol solution in 1978 there have been numerous reports of systemic toxicity associated with its use. The majority of the systemic side effects reported are the same as those associated with oral timolol. Several cases of respiratory distress have been described generally in patients with underlying restrictive airway disease. Cardiovascular effects range from effects on resting pulse rate to the development of overt bradycardia and heart failure. Central nervous system effects reported include fatigue, confusion, depression, and hallucinations. A variety of other systemic effects have also been described. Caution should be used when ophthalmic timolol is administered to elderly patients or those patients with contraindications to systemic beta-blockers.
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PMID:Systemic side effects associated with the ophthalmic administration of timolol. 388 77

The winter athlete has several potential tactics for sustaining body temperature in the face of severe cold. An increase in the intensity of physical activity may be counter-productive because of increased respiratory heat loss, increased air or water movement over the body surface, and a pumping of air or water beneath the clothing. Shivering can generate heat at a rate of 10 to 15 kJ/min, but it impairs skilled performance, while the resultant glycogen usage hastens the onset of fatigue and mental confusion. Non-shivering thermogenesis could arise in either brown adipose tissue or white fat. Brown adipose tissue generates heat by the action of free fatty acids in uncoupling mitochondrial electron transport, and by noradrenaline-induced membrane depolarisation and sodium pumping. The existence of brown adipose tissue in human adults is controversial, and although there are theoretical mechanisms of heat production in white fat, their contribution to the maintenance of body temperature is small. Acclimatisation to cold develops over the course of about 10 days, and in humans the primary change is an insulative, hypothermic type of response; this reflects the intermittent nature of most occupational and athletic exposures to cold. Nevertheless, with more sustained exposure to cold air or water, humans can apparently develop the humoral type of acclimatisation described in small mammals, with an increased output of noradrenaline and/or thyroxine. The associated mobilisation of free fatty acids suggests the possibility of using winter sport as a pleasant method of treating obesity. In men, a combination of moderate exercise and facial cooling induces a substantial fat loss over a 1- to 2-week period, with an associated ketonuria, proteinuria, and increase of body mass. Possible factors contributing to this fat loss include: (a) a small energy deficit; (b) the energy cost of synthesising new lean tissue; (c) energy loss through the storage and excretion of ketone bodies; (d) catecholamine-induced 'futile' metabolic cycles with increased resting metabolism; and (e) a specific reaction to cold dehydration. Current limitations for the clinical application of such treatment include uncertainty regarding optimal environmental conditions, concern over possible pathological reactions to cold, and suggestions of a less satisfactory fat mobilisation in female patients. Possible interactions between physical fitness and metabolic reactions to cold remain controversial.(ABSTRACT TRUNCATED AT 400 WORDS)
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PMID:Adaptation to exercise in the cold. 388 60

Fenfluramine (Fen) 40 mg, a selective releaser of serotonin, and dextroamphetamine (Dex) 15 mg were administered in a double-blind crossover design to 16 subjects with major affective disorder, depression. Three hours after administration both drugs significantly improved depression and improved vigor, fatigue, and confusion-bewilderment on the subscales of the Profile of Mood States. Dex was significantly better than Fen only on the vigor and fatigue subscales. Other data from this study suggest that when used acutely Fen can mimic long-term antidepressant effects, whereas the acute effects of Dex are similar to its stimulating effects in normals.
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PMID:A comparison of the acute effects of dextroamphetamine and fenfluramine in depression. 389 98


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