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A mixture of paraquat and water was applied, by helicopter, to agricultural fields near a residential community and near an associated commercial complex. Drift from the application passed directly over the community, which resulted in resident complaints to the local county agricultural department. A community survey was undertaken to determine what health consequences, if any, resulted from the drift. A comparison of 2-wk self-reported symptom rates between the exposed community and three historical control communities indicated that 10 symptoms were elevated significantly at p < .05: cough, diarrhea, eye irritation, headache, nausea, rhinitis, throat irritation, trouble breathing, unusual tiredness, and wheezing. An internal comparison, which predicted symptom rates by an index of paraquat exposure (smelling an unusual odor in the prior 2-wk period), indicated fever (relative risk [RR] = 11.97) and nausea (RR = 3.75) to have elevated relative risks. Odor perception also predicted the report of a greater than the average number of symptoms. Based upon these findings, it was concluded that these residents probably did experience an increase in health symptoms from the drift. It is recommended that paraquat not be sprayed near residential communities.
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PMID:Community exposure to a paraquat drift. 845 99

To assess the relationship between chronic bronchitis and obstructive sleep apnoea, a postal survey was performed. A postal questionnaire was sent to 523 subjects identified as having chronic bronchitis or long-standing cough and sputum production in the Obstructive Lung Disease in Northern Sweden Study I (OLIN I). In 1986-88, all 6610 adults born in 1919-20, 1934-35 and 1949-50 living in representative areas in Northern Sweden were screened for airway diseases according to different methods. A random sample of healthy adults identified in the screening were chosen as references (n = 625). Subjects were asked about a variety of airway symptoms, smoking habits and symptoms related to obstructive sleep apnoea syndrome (OSAS). In the bronchitic group, 20% did not report bronchitic symptoms in the present study, and 26% of the formerly healthy reference group reported at least one bronchitic symptom in the present study. Snoring, apnoea and liability to 'nod off' during activity were much more common in the bronchitic group in both men and women, and most common in men, as expected. Snoring was reported by 29% of the men in the bronchitic group and by 14% in the reference group. In women, the corresponding figures were 14 and 8%, respectively, and for apnoea, the figures were 25 vs. 11% in men and 6 vs. 4% in women. The prevalence of OSAS symptoms was similar in subjects with attacks of breathlessness, long-standing cough, sputum production and recurrent wheezing. Bronchitic symptoms may influence quality of sleep and contribute to daytime tiredness, but this does not fully explain the high prevalence of snoring and apnoea reported by subjects in this cohort. This study indicates a positive correlation between chronic bronchitis and OSAS, but sleep studies are required to confirm this.
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PMID:Symptoms related to snoring and sleep apnoea in subjects with chronic bronchitis: report from the Obstructive Lung Disease in Northern Sweden Study. 906 11

There is no disease-specific instrument available for health status assessment in bronchiectasis. We examined the stability, validity and responsiveness of a measure designed for asthma and COPD, the St. George's Respiratory Questionnaire (SGRQ), in this condition. One hundred and eleven patients were studied on 2 separate d 6 mo apart. On both days each patient completed the SGRQ and measures of general and disease-specific health, mood, and fatigue. They also performed a shuttle walking test and comprehensive lung function tests. Repeatability was tested over 2 wk in 23 patients. The intraclass correlation (ri) for the SGRQ Total score was 0.97. The SGRQ component scores correlated well with relevant markers of disease activity. Examples include: SGRQ Symptoms score versus MRC Wheeze score, r = 0.634, p < 0.0001; Activity score versus shuttle walking test, r = -0.659, p < 0.0001; and impacts score versus physical fatigue, r = 0.610, p < 0.0001. Changes in the SGRQ Total score from entry to follow-up also correlated with changes in other measures of the patients' health. There were significant differences in the SGRQ total score between patients who improved and those who deteriorated over the 6 mo in respect to wheeze (F = 5.6, p < 0.01) and breathlessness (F = 6.05, p < 0.01). We conclude that the SGRQ reflects impaired health in bronchiectasis patients.
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PMID:Validation of the St. George's Respiratory Questionnaire in bronchiectasis. 927 36

The aim of the study was to investigate whether wheezing is associated with disturbed sleep and increased daytime symptoms in school-aged children. A random sample of 1234 children, aged 6-14 years, participated in a respiratory health study in the region of Antwerp. The International Study of Asthma and Allergies in Childhood questionnaire and a separate sleep questionnaire were completed. In the children who wheezed in the last 12 months, sleep quality was more frequently disturbed due to nocturnal awakenings and restless sleep compared with children who did not wheeze. Daytime sleepiness and tiredness were more common in wheezing than in non-wheezing children. After adjusting for possible confounders a positive association was found between wheeze and: difficulties falling asleep [odds ratio (OR) = 2.0], restless sleep (OR = 5.0), daytime sleepiness (OR = 3.8) and daytime tiredness (OR = 5.1). Chronic cough (OR = 2.4), snoring (OR = 2.0), chronic rhinitis (OR = 2.6) and eczema (OR = 3.3) were associated with disturbed sleep. Chronic cough (OR = 2.5) and rhinitis (OR = 4.1) were related to daytime tiredness. Chronic rhinitis was an important risk factor for snoring (OR = 1.9). In wheezing school-aged children, decreased quality of sleep and increased daytime tiredness and sleepiness were more often reported. Upper airway symptoms were related to the sleep disturbances.
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PMID:Sleep disturbance and daytime symptoms in wheezing school-aged children. 1574 37

Asthma is one of the most common chronic illnesses in children. Children with asthma often suffer from night coughing, wheezing and breathlessness that disturb their sleep. Nocturnal asthma is often associated with such problems as difficulty falling asleep, restless sleep, difficulty maintaining sleep, daytime sleepiness, and daytime tiredness. These sleep problems not only occur in children but also in their parents, and furthermore affect their daytime activity. People with asthma should be aware that nocturnal asthma is associated with more severe symptoms and increased mortality. Several underlying mechanisms that may shed light on how and why nighttime seems to exacerbate asthma symptoms include the inflammation process, airway resistance, and bronchial hyper-responsiveness (all circadian factors) as well as gastro-esophageal reflux (a non-circadian factor). Nurses should understand the mechanisms of nocturnal asthma and conduct sleep assessments comprehensively in order to design and implement appropriate strategies to improve the sleep quality of children with asthma.
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PMID:[The sleep problems among children with asthma]. 1687 99

Acute bronchitis is one of the most common diagnoses in ambulatory care medicine. Although the benefit of antibiotics for acute bronchitis, which is mostly virally induced, is disputed, they are often prescribed. A therapeutic option for respiratory tract infections that do not fall within the strict indication range for antibiotic administration is the liquid herbal drug preparation from the roots of Pelargonium sidoides, EPs 7630 (Umckaloabo), which has been tested against placebo in double-blind clinical trials. EPs 7630 has both antibacterial and immuno-modulating properties. The efficacy and tolerability of EPs 7630 was investigated in a prospective, open, multicentric outcomes study with 205 patients suffering from acute bronchitis or acute exacerbation of chronic bronchitis. The main outcome measure was the change in the total score of five symptoms typical for bronchitis (cough, expectoration, wheezing/whistling on expiration, chest pain during coughing, and dyspnoea), which were each rated using a 5-point scale (from 0=not present to 4=extremely pronounced). Further symptoms (hoarseness, headache, aching limbs and fatigue) were assessed using a four-point scale (from 0=not present to 3=very pronounced). The total score of the typical bronchitis symptoms amounted to 6.1+/-2.8 points on average at the start of treatment and decreased by 3.3+/-3.8 points to 2.8+/-2.6 points by the final examination on day 7. About 60.5% of the patients assessed their health condition at the end of the study as much improved or free from symptoms. The onset of action appeared after two days on average. Adverse events occurred in a total of 16 patients. There were no serious adverse events. Altogether, 78% of the patients were satisfied or very satisfied with the treatment.
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PMID:EPs 7630-solution--an effective therapeutic option in acute and exacerbating bronchitis. 1718 84

Biotinidase deficiency is a treatable cause of severe neurological disorders and skin problems. Spinal cord impairment is a rare complication of this disease and is commonly unrecognized. The authors encountered 3 Chinese patients with progressive spinal cord demyelination associated with biotinidase deficiency. Case 1 exhibited fatigue, proximal muscular weakness, and hypotonic paraplegia from the age of 7 years 4 months. Demyelination of cervical and thoracic cord was evident on magnetic resonance imaging (MRI). Case 2 developed visual impairment, blepharoconjunctivitis, and optic nerve atrophy from 5 years of age, which combined with progressive hypertonic paralysis, ataxia, and alopecia from the age of 7 years. His spinal MRI T2-weighted sequence revealed an extensive hyperintense lesion involving the cervical spinal cord C(2) to C(4). Bilateral optic nerves were significantly thick. In case 3, intercurrent wheezing, tachypnea, dyspnea, and lethargy occurred from the age of 1 year. Medulla and upper cervical spine edema and demyelination were found on MRI. Markedly elevated urine organic acids and decreased blood biotinidase activities were observed in the 3 patients. Biotin supplementation led to a dramatic improvement of clinical symptoms in 3 patients. The findings indicate that biotinidase deficiency should be considered in the differential diagnosis of unexplained spinal cord demyelination because prompt diagnosis and treatment with biotin may enable an excellent recovery.
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PMID:Spinal cord demyelination associated with biotinidase deficiency in 3 Chinese patients. 1762 76

Hypersensitivity to inulin (polyfructan) is a rare event; two cases of food allergy and some patients presenting with allergy and hypersensitivity after inulin infusion have been reported. An 11-year-old boy suffering from severe immunoglobulin (Ig)A nephropathy (IgAN) experienced both anaphylactic reaction and concomitant relapse of his nephropathy following inulin infusion, used for measuring glomerular filtration rate (GFR) 2 years after the appearance of his initial symptoms. Pruritus, wheezing and cough were observed during a first renal function test; results of prick and intradermal tests were negative for inulin. The patient presented with pallor, asthenia and oliguria when a second inulin infusion was performed under dexchlorpheniramine, leading to the immediate cessation of the infusion. He was readmitted 2 days later because of fatigue and nausea related to acute renal failure. A drug-induced acute interstitial nephritis was first suspected. However, due to the presence of macroscopic haematuria and proteinuria, a renal biopsy was performed and showed acute proliferative relapse of IgAN. The underlying mechanism of inulin hypersensitivity is not well known. We can hypothesize that inulin had activated the innate immune system. Inulin may, thus, have been the initiating event of the renal relapse, acting like an infection, in a patient with IgA-mediated immunological dysregulation.
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PMID:'Renal hypersensitivity' to inulin and IgA nephropathy. 1853 47

Although chronic obstructive pulmonary disease (COPD) is a highly prevalent and disabling illness, few empirical studies have evaluated the impact of the disease on symptom distress, functional status, and quality of life. These outcomes were explored in a prospective survey of 100 patients with advanced COPD. Patients were recruited from two academic centers. The mean forced expiratory volume in 1 second (FEV1) was 24.4% (standard deviation=3.9). Validated instruments were used to assess symptom distress (Memorial Symptom Assessment Scale [MSAS]), mental health (Mental Health Inventory [MHI]-5), functional status (Sickness Impact Profile [SIP]), quality of life (Multidimensional Index of Life Quality [MILQ]), spirituality (Functional Assessment of Chronic Illness Therapy [FACIT] Spirituality Scale), and comorbid conditions (Charlson Comorbidity Index). The most prevalent symptoms were dyspnea (94%), fatigue (71%), xerostomia (60%), coughing (56%), and anxiety (51%). Other symptoms with high prevalence were drowsiness (47%), irritability (42%), feeling nervous (40%), and wheezing (40%). Significant pain was reported in about one-third of patients. Patients reported relatively high levels of overall functional impairment (SIP median=24.0) and modest impairment in overall quality of life (MILQ median=52). Overall, psychological well-being was relatively unimpaired (median=24.5), and the comfort derived from faith was intact (FACIT median=2.5). Impairment in quality of life was strongly associated with symptom distress (MSAS-GDI; r=-0.74, P<0.001), functional impairment (SIP total; r=-0.59, P<0.001), female sex (r=-0.26, P=0.01), and poor psychological well-being (MHI-5; r=0.68, P<0.001). In multivariate analyses, poor quality of life was strongly correlated with higher total symptom distress, sickness-related dysfunction, and lower levels of psychological well-being (R(2)=0.66). In addition, two specific psychological symptoms-worrying and feeling irritable-were independently predictive of poor quality of life. Patients with advanced COPD have multiple distressing symptoms and a high prevalence of disturbances in mood, functional status, and quality of life. A focus on ameliorating prevalent physical symptoms and psychological distress may lead to an improvement in the overall quality of life in this patient population.
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PMID:Symptom distress and quality of life in patients with advanced chronic obstructive pulmonary disease. 1923 93

A 5-year-old child with hypoplastic left heart syndrome (HLHS) was noted to have left pulmonary artery stenosis after Glenn shunt placement. Therefore, a stent was implanted into the left pulmonary artery to relieve stenosis. After redilatation of the pulmonary artery stent, wheezing, fatigue, asymmetric bronchial sound, and desaturation was noted. Computed tomography, bronchoscopy, and bronchography confirmed critical left main bronchus compression as a consequence of the mass effect of the dilated stent. Balloon plasty of the left bronchus successfully relieved bronchial stenosis. Tracheobronchial obstruction is a possible adverse effect of vascular stenting in children with congenital heart defects. Balloon plasty seems to be a safe and efficient therapeutic option in those cases.
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PMID:Bronchial compression as adverse effect of left pulmonary artery stenting in a patient with hypoplastic left heart syndrome. 1993 8


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