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Query: UMLS:C0030193 (pain)
 261,466 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

1. In order to determine the nervous outflow from skeletal muscle during chemically induced muscle pain, the impulse activity of various types of muscle afferents in response to close intra-arterial injections of pain-producing substances (bradykinin, 5-hydroxytryptamine, histamine and potassium) was studied in anaesthetized cats using a single fibre recording technique.2. By administration of algesic agents in doses which produce pain in man and pain reactions in animals, about half of the group IV and two thirds of the group III muscle afferents could be activated. In contrast, group II and group I afferent units were usually not excited by chemical noxious stimulation. If effects at all occurred in the thick myelinated afferents, they consisted of a depression of the fibre activity rather than of an activation.3. The qualitative features of the discharges of group III muscle afferents induced by chemical stimulation resembled those of the group IV units very closely. The group III units differed from the group IV afferents in that their responses to a given dose of bradykinin were of greater magnitude.4. It is concluded that the chemically induced muscle pain is probably mediated by certain portions of the group IV and group III afferents, whereas the reactions of group II and group I units to algesic agents are such that a contribution to muscular chemo-nociception seems improbable.
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PMID:Nervous outflow from skeletal muscle following chemical noxious stimulation. 14 96

Weakness or stiffness of key posture muscles can cause much of the disability seen in elderly patients. Too much tension and too little exercise greatly increase the natural loss of muscular fitness with age. A systematic program of exercise, stressing relaxation and stretching of tight muscles and strenghthening of weak muscles, can improve physical fitness. The program must be tailored to the patient, starting with relaxation and gentle limbering exercises and proceeding ultimately to vigorous muscle-stretching exercises. Muscle aches and pain from tension and muscle imbalance are to be expected. Relaxation relieves tension pain, and strengthening weak muscles and stretching tight muscles will correct muscle imbalance. To prevent acute muscle spasm, the patient should avoid excessive exertion and increase exercise intensity gradually.
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PMID:Reconditioning aging muscles. 14 91

Twenty volunteers were inoculated with various doses of human serum containing Phlebotomus fever virus (Sicilian type) to determine their clinical and serologic responses as well as the human infectious dose50 of the virus. All infected subjects developed fever which varied in duration from 6 to 74 hours. The most common symptoms during sandfly fever were headache, anorexia, myalgia, photophobia, low back and retro-orbital pain. Infected individuals developed a marked leukopenia characterized by an initial lymphopenia followed by protracted neutropenia. Little complement fixing antibody was detected in convalescent sera but most subjects developed significant rises in hemagglutination inhibiting antibodies. All infected subjects developed specific neutralizing antibodies with titers ranging from 1:40 to 1:2,560. Of the three serologic tests performed, the plaque reduction neutralization method appears to be the most sensitive test for detecting antibodies to Phlebotomus fever viruses.
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PMID:Clinical and serologic responses of volunteers infected with phlebotomus fever virus (Sicilian type). 18 Aug 44

840 people were included in this study. 29.2% of them were found to have at least two dysfunctional signs, either in combination with pain (7.2%) or without pain (22%). The former group represents cases of the masticatory myalgia syndrome, while the later (the non-painful masticatory dysfunction group) may be considered as representing a pre-clinical stage of the masticatory myalgia syndrome.
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PMID:The incidence of masticatory dysfunction and its relation to the masticatory myalgia syndrome. 27 Nov 91

Ten adults and ten children exercised maximal voluntary tooth clenching until pains appeared in the jaw muscles, i.e. the muscle pain threshold of tooth clenching was determined. Subsequently, the subjects were instructed to exercise tooth clenching until they were forced to stop because of intolerable pains and exhaustion of the contracting muscles, i.e. the muscle pain tolerance of tooth clenching was recorded, and during these bouts of clenching the pain tolerance of tooth clenching was recorded, and during these bouts of clenching the pain threshold was also determined. In adults, determination of the pain tolerance decreased the pain threshold by 19%, and in children it either decreased the pain threshold by 20% or increased it by 56%. It is proposed to introduce the muscle pain tolerance of tooth clenching as an adjunct in the clinical examination of cases of facial pains presumed to originate from the jaw muscles, but the test should be interpreted with caution.
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PMID:Influence of muscle pain tolerance on muscle pain threshold in experimental tooth clenching in man. 28 68

Phosphate diabetes has been considered as rare and to occur almost exclusively in children. Upon examination of adult patients with rheumatic or kidney diseases it has, however, been found that the combination of hypophosphataemia and hyperphosphaturia is not so rare. This paper deals with 24 adult patients of this type, whom we have found during 6 months. Their mean serum phosphorus concentration was 0.7 mmol/l (range 0.5--0.8). Mean phosphate clearance was 31 ml/min/1.73 m2 (range 16--51). The diagnoses were myalgia, dorsalgia (n = 7), papillitis calcificans (n = 5), prostatitis or prostate accretions (n = 4), dizziness (n = 2), kidney stones, tubular defect, interstitial nephritis, medullary sponge kidney (1 case each), two patients had transplanted kidneys. Asthenia was a common additional diagnosis. The patients' complaints have been pain in the muscles, joints, bones (18 cases), tiredness (10 cases), dizziness (8 cases), shakyness, numbness, burning sensation (7 cases), tenderness in the muscles and bones ("the princess-on-the-pea syndrome") (7 cases). The most common findings upon examination were bone tenderness (13 cases), reduced manual power (8 cases), positive Romberg test (3 cases), slight muscle atrophy (2 cases), waddling gait (2 cases). The most common findings encountered in the laboratory, besides hypophosphataemia and hyperphosphaturia, were high pH in the urine, hyperaminoaciduria, and phosphate crystals in dried urine.
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PMID:Mild phosphate diabetes in adults. 30 93

Seven patients, aged 12 to 19 years, had atypical measles. Prodromal symptoms of fever, malaise, myalgia, headache, nausea, and vomiting were commonly followed by coryza, sore throat, conjunctivitis, photophobia, nonproductive cough, and pleuritic pain. The characteristic rash was erythematous, maculopapular, and progressed frequently to vesicular, petechial, or purpuric lesions. It initially involved palms and soles with subsequent spread to proximal extremities and the trunk, sparing the face. Six of six chest roentgenograms showed infiltrates. Findings not previously described in atypical measles included liver enzyme elevations, thrombocytopenia, disseminated intravascular coagulation, possible transmission among three siblings, and suspected cardiac involvement. Measles complement fixation titers compatible with recent infection were seen in all patients. All patients had previously received killed measles vaccine. A substantial number of persons who are older adolescents or young adults may be at risk of developing atypical measles.
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PMID:Atypical measles in adolescents and young adults. 44 83

Thirty-six male subjects aged 18 to 26 years were assigned at random to one of three treatment groups: biofeedback, static stretch, and control. Muscle soreness was produced in all subjects by an 80% maximal eccentric contraction of the biceps brachii. The subjects in the biofeedback group applied auditory electromyographic (EMG) feedback at 6, 25, 30, 49, and 54 hours after the exercise, and the stretch group applied static stretch to the exercised arm at the same time periods. Observations of EMG activity and perceived pain level were made immediately before and after exercise, and at 24, 48, and 72 hours following exercise. When compared with a control group, both auditory biofeedback and static stretching significantly reduced EMG muscle activity but had no significant effect on perceived pain. The EMG activity and perceived pain of the subjects in each treatment group significantly differed across observations.
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PMID:Effect of electromyographic feedback and static stretching on artificially induced muscle soreness. 45 40

We report 11 cases of bacterial endocarditis with muscular and articular manifestations seen over the past ten years. There was arthralgia in 7 cases, vertebral pain in 7 cases and myalgia in 3 cases. Arthritis consisted of a monoarthritis of the ankle in 2 cases and oligoarthritis in 2 cases. There were also 2 cases of lumbar spondylodiscitis and 1 of finger clubbing in the series. The underlying heart disease was a valvular lesion of the left side of the heart in 10 cases out of 11 and the organism isolated by blood culture was a streptococcus in 9 cases and a staphylococcus in 11. We emphasis the need for early diagnosis and appropriate antibiotic therapy, in the absence of which the course may be fatal in the short term, as it was the case in one of our own patients.
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PMID:[Articular and muscular manifestations of bacterial endocarditis. 11 cases (author's transl)]. 74 39

A double-blind, between-patients comparison between parsalmide (a new drug) and phenylbutazone in 55 patients with postraumatic joint and muscle pain showed that the two compounds possessed about the same anti-inflammatory and analgesic activity, though parsalmide gave greater relief of pain and local swelling. Tolerance was excellent for both drugs. Slight gastric disturbances noted in 2 subjects with both compounds were easily corrected by symptomatic management.
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PMID:[Controlled clinical trial of parsalmide]. 79 35


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