Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0018681 (headache)
 56,091 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Pesticides, such as parathion, are metabolized by cytochrome p-450 system to paraoxon, which is a potent cholinesterase inhibitor. Paraoxonase (PON) catalyzes the hydrolysis of these toxic metabolites and protects against pesticide toxicity. A glutamine/arginine (Gln/Arg) polymorphism at amino acid position 192 of PON has been described. The Arg/Arg genotype is associated with higher serum paraoxonase activity compared to Gln/Gln. The Arg/Gln genotype is associated with intermediate serum PON activity. The potential association between PON genotype and symptoms of chronic pesticide toxicity was examined among 100 farm workers. As part of a cross-sectional study of pesticide toxicity among mixed-race farm workers in the Western Cape. South Africa, 100 farm workers were genotyped for polymorphism of the paraoxonase gene at amino acid position 192. Subjects with two or more of the following symptoms were considered to have evidence of chronic toxicity: abdominal pain, nausea, rhinorrhea, dizziness, headache, somnolence, fatigue, gait disturbance, limb numbness, paresthesias, limb pain, or limb weakness. In multivariable logistic regression analysis, the independent predictors of chronic toxicity were previous history of head trauma resulting in loss of consciousness (OR 2.8, 95% CI = 1.7-6.7), having worked as a pesticide applicator (OR 5.4, 95% CI = 3.2-8.9), and having one of the two "slow metabolism" (Gln/Gln or Gln/Arg) genotypes (OR 2.9, 95% CI = 1.7-6.9). Furthermore, the prevalence of chronic toxicity increased in a stepwise fashion from 15% among pesticide nonapplicators with a "fast metabolism" (Arg/Arg) genotype, to 42.9% among pesticide nonapplicators with "slow metabolism" (Gln/Gln or Gln/Arg) genotypes, to 58.8% among pesticide applicators with "fast metabolism" genotype, and 75.0% among pesticide applicators with "slow metabolism" genotypes (P = 0.001). Age, number of years on the job, smoking history, alcohol history, education level, plasma or red blood cell cholinesterase level, or previous history of acute organophosphate poisoning were not statistically significant predictors of chronic toxicity. The PON genotype is an important determinant of a farmworker's susceptibility to chronic pesticide poisoning.
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PMID:Association between human paraoxonase gene polymorphism and chronic symptoms in pesticide-exposed workers. 1262 27

We evaluated the 1-year prevalence of pain syndromes and quality of care among 157 consecutive multiple sclerosis (MS) inpatients (90 f, 67 m) aged 19-85 years, with extended disability status scores of 1.0-8.5 and clinically definite MS. In a standardized questionnaire, only severe pain (pain intensity on visual analog scale of at least 4/10) was documented and classified which had occurred more often than three times or lasted longer than 1 week within the last year. Of 157 patients, 61% reported 176 pain syndromes: most frequent were headaches (40%), dysesthetic limb pain (19%), back pain (17%), and painful spasms (11%). Twelve percent of the pain syndromes were classified as worst symptom of MS, and in 68% insufficient care by the physicians consulted was reported. This was even true for the most frequent pain, migraine, in which clear treatment recommendations exist. There is thus an urgent need for physicians to keep this problem in mind when treating MS patients.
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PMID:[Pain in multiple sclerosis--a still underestimated problem. The 1 year prevalence of pain syndromes, significance and quality of care of multiple sclerosis inpatients]. 1477 Feb 83

In a one-year longitudinal study, emotional/behavioural correlates and predictors of four common pain complaints (headaches, stomach, back and limb pain), were examined in a representative school sample of 2360 adolescents aged 12- to 15-years. At first assessment, 18.3% reported being bothered by a frequent pain (at least once a week) and 40% of the pain sufferers had two or more pain locations, more commonly reported by girls. Subjects having any of the four frequent pains reported having fewer friends and were more often absent from school. Frequency and number of reported pains among adolescents were positively related to levels of internalising and externalising problems. These latter problems were consistently and significantly higher among adolescents with frequent back and limb pains, however, when coexistence of another frequent pain was controlled, differences were small. Number of pains at the one-year follow-up was significantly predicted by frequent back pain and headache, depressive symptoms scores, somatic complaints (other than pain), number of friends and reduced leisure time activities during the follow-up period. Frequent back pain and depressive symptoms also predicted multiple frequent pains (vs single frequent pain) at the follow-up as did recent parental divorce. It is concluded that various emotional and behavioural problems, and which are commonly regarded as being specifically related to pain type or location among adolescents, depend rather on frequency and coexistence of multiple frequent pains. Assessment of adolescents with frequent and multiple pains should, therefore, include broad screening of internalising as well as externalising problems as well as various aspects of impairment.
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PMID:Emotional/behavioural, social correlates and one-year predictors of frequent pains among early adolescents: influences of pain characteristics. 1648 Sep 7

Drug challenge test (DCT) is performed to evaluate chronic pain pharmacologically and determine its medical treatment. One test drug is administered in one day for DCT and characterization of the test drug. Four patients developed side effects of the test drugs for DCT in whom other drug tests were postponed or canceled. A 58-year-old man with multiple arthritis of rheumatic arthritis and fibromyalgia had headache, nausea, and vomiting all day after ketamine test. A 76-year-old man with chronic general pain and failed back surgery syndrome had vomiting and abdominal discomfort two hours after morphine test and had redness and itching on his bilateral forearms the following day. A 78-year-old man with chronic lumbar and right lower limb pain due to L 4-5 lumbar disc herniation and postherpetic neuralgia felt dizzy, fell down and bruised on his lower back and left knee twelve hours after morphine test. A 32-year-old woman with chronic pelvic pain had skin eruption on her thigh the day after phentolamine test. Although the amount of the test drug in DCT is small and its half-life is short, long-term side effects might occur. We should decrease the amounts or frequencies of ketamine and morphine, and administer them taking long intervals before other tests.
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PMID:[Postponed or canceled drug challenge tests and side effects of the test drug--a report of four cases]. 1649 93

Despite frequent targeting of health beliefs in pediatric chronic pain treatment interventions, there are currently no reliable and valid self-efficacy measures for children with chronic pain and their parents. The current study examined the psychometric properties of parent and child versions of a self-efficacy measure related to the child functioning normally when in pain. Pediatric pain patients, 9-18 years of age, and a caregiver completed questionnaires before an initial tertiary care clinic appointment. The 67 patients in our sample had an average of 1.7 pain locations, including abdominal pain (43.3%), headaches (50.7%), body pain (25.4%), back pain (23.9%), limb pain (20.9%), and/or chest pain (9.0%). Reliability for the new measures was excellent; the Cronbach's alpha was .89 for the 7 child items and .90 for the 7 parent items. Strong evidence for construct validity was also obtained as 23 of the 27 hypothesized correlations were confirmed. As predicted, parent and child ratings of increased self-efficacy for the child functioning normally when in pain were significantly correlated with each other, and to parent reports of fewer problems functioning due to physical or emotional problems; parent reports of fewer somatic, behavioral or emotional symptoms; parent reports of increased self-esteem, and unrelated to child pain, age and gender. Additionally, child ratings of increased self-efficacy were significantly correlated with child reports of increased self-esteem and fewer somatic symptoms. Replication with a larger sample size, more complex modeling, and prospective studies are indicated.
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PMID:Preliminary validation of a self-efficacy scale for child functioning despite chronic pain (child and parent versions). 1674 Mar 60

Caudal block with a local anesthetic through the hiatus sacralis has been performed in patients with chronic low back pain, lower limb pain, anal pain, and pelvic pain due to spinal canal stenosis, lumbar disc herniation, lumbar spondylolisthesis, postherpetic neuralgia, peripheral vascular disease, complex regional pain syndrome and so on. We prepar- ed an information and consent sheet on caudal block in The University of Tokyo Hospital. In the information sheet, we included disease, purpose, methods, outcome, accidental complications of caudal block, other treatments, progress on unperformed case, questions and answers, influence of rejection, and doctor's name. We experienced some cases of boring pain, deterioration of low back pain and lower limb pain, headache, nausea, hypertension, hypotension, and tachycardia as accidental complications of caudal block. In describing some accidental complications, we included boring pain, high intracranial pressure, dural puncture, nerve injury, infection, hemorrhage, embolism, allergy, and heart, lung, brain, liver, and kidney failures. Further, we could refer to the accidental complications of epidural block. However, the rate of each accidental complication has not been known in detail. We should survey the outcome and accidental complication of caudal block prospectively in multiple facilities and provide the patients with useful information.
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PMID:[Information and consent sheet of caudal block in the University of Tokyo Hospital]. 1678 90

Electrical spinal neuromodulation in the form of spinal cord stimulation is currently used for treating chronic painful conditions such as complex regional pain syndrome, diabetic neuropathy, postherpetic neuralgia, peripheral ischemia, low back pain, and other conditions refractory to more conservative treatments. To date, there are very few published reports documenting the use of spinal cord stimulation in the treatment of head/neck and upper limb pain. This paper reports a case series of 5 consecutive patients outlining the use of spinal cord stimulation to treat upper extremity pain. All subjects had previously undergone cervical fusion surgery to treat chronic neck and upper limb pain. Patients were referred following failure of the surgery to manage their painful conditions. Spinal cord stimulators were placed in the cervical epidural space through a thoracic needle placement. Stimulation parameters were adjusted to capture as much of the painful area(s) as possible. In total, 4 out of 5 patients moved to implantation. In all cases, patients reported significant (70-90%) reductions in pain, including axial neck pain and upper extremity pain. Interestingly, 2 patients with associated headache and lower extremity pain obtained relief after paresthesia-steering reportedly covered those areas. Moreover, 2 patients reported that cervical spinal cord stimulation significantly improved axial low back pain. Patients continue to report excellent pain relief up to 9 months following implantation. This case series documents the successful treatment of neck and upper extremity pain following unsuccessful cervical spine fusion surgery. Given this initial success, prospective, controlled studies are warranted to more adequately assess the long term utility and cost effectiveness of electrical neuromodulation treatment of chronic neck and upper extremity pain.
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PMID:Neuromodulation of the cervical spinal cord in the treatment of chronic intractable neck and upper extremity pain: a case series and review of the literature. 1752 88

Cephalic and extracephalic allodynia are recognized as a common sign of sensory sensitization during migraine episodes. However, the occurrence of body pain in migraine has not been thoroughly explored. Here we report three patients presenting with spontaneous body pain in association with migraine attacks. A 41-year-old woman experienced face and limb pain along with migraine headaches; it started before, during or after headache, was usually ipsilateral to head pain, and could last from minutes to days. A 39-year-old woman had pain in her right limbs, back and neck for 30-60 min prior to right-sided migraine headaches. A 30-year-old woman perceived pain in her left upper limb for 24-48 h prior to left-sided migraine headaches. All patients had allodynia to mechanical stimuli over the painful areas. Spontaneous body pain may be associated with migraine attacks. Together with allodynia, this might be a consequence of central sensitization.
Cephalalgia 2008 Jan
PMID:Migrainous corpalgia: body pain and allodynia associated with migraine attacks. 1802 Dec 65

Acute bronchitis commonly associated with cough is predominantly caused by viral infections. The burden on health-care systems and society is enormous. A randomised, placebo-controlled, multicentre clinical trial to investigate the efficacy and safety of a liquid herbal drug preparation from the roots of Pelargonium sidoides (EPs 7630) was conducted in 217 adult outpatients with acute bronchitis. The primary efficacy variable was the bronchitis symptom score (BSS) ranging from 0 to 20. Primary data of this study were already published in 2007. Now, we present further analyses of these already published data combined with new results in order to focus on both the most important features of acute bronchitis and pharmaco-economic aspects of the disease. The BSS decreased by 7.6 +/- 2.2 (mean +/- SD) points for the active treatment group and 5.3 +/- 3.2 points for placebo (p < 0.0001). As compared with placebo, a marked improvement has been shown for EPs 7630 for all disease symptoms (cough, sputum, rales, dyspnoe, pain on coughing, hoarseness, headache, fatigue, fever, limb pain) categorised in severity classes by the patient. Especially strong antitussive and "anti-fatigue" effects with an early onset during treatment were observed. Patients in the EPs 7630 group were sooner able to work and to a lesser extent confined to bed. In both treatment groups, 3 x 30 drops of the trial medication administered for 7 days were well tolerated. No serious adverse events have been observed. In conclusion, EPs 7630 is superior to placebo in the treatment of acute bronchitis and leads to faster remission of bronchitis related symptoms.
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PMID:EPs 7630 improves acute bronchitic symptoms and shortens time to remission. Results of a randomised, double-blind, placebo-controlled, multicentre trial. 1844 49

Recurrent limb pain (RLP) is a well-known entity in childhood. It is considered a precursor of migraine. The temporal relationship of RLP with headache in childhood is lacking in the literature. However, there are many cases with limb pain in a close temporal relationship with migraine headache in adults. We report six female patients with RLP and migraine and delineate the temporal relationship between the two. Three patients had a history of RLP in childhood and developed migraine headache after many years. Conversely, two patients had a long history of migraine headache and later developed RLP. One patient developed RLP and migraine headache at the same age. Isolated limb pain was frequent in all six patients. It was mild to severe, for a few minutes to a few days, and predominantly located in the upper extremities. Only one patient reported allodynia. The patients showed response to preventive measures (all six patients) and abortive therapies (four patients), even in those attacks of RLP that were not associated with headache episodes. We also review the clinical profiles of the patients in whom RLP and migraine were related to each other, and speculate on the possible mechanisms for RLP in the patients with migraine.
Cephalalgia 2009 Aug
PMID:Recurrent limb pain and migraine: case reports and a clinical review. 1922 Mar


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