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Query: UMLS:C0018681 (headache)
 56,091 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The algesic effect of substance-P with and without the addition of bradykinin or 5-hydroxytryptamine was studied in 13 healthy volunteers. Test substances dissolved in saline were injected into the temporal muscle and the forearm skin and the effects compared with those of saline. In the temporal muscle, none of the test substances induced more pain than saline, but substance-P with bradykinin lowered the pressure pain threshold by 18% (p less than 0.02). All test substances induced pain wheal and flare in the forearm skin. Substance-P induced a more pronounced flare reaction than bradykinin, whereas the latter induced more pain than substance-P. This dissociation between pain and flare may indicate that C-fibres in the human skin represent more than one type of nociceptor.
Cephalalgia 1991 Sep
PMID:Pain, tenderness, wheal and flare induced by substance-P, bradykinin and 5-hydroxytryptamine in humans. 172 Jul 8

Histamine skin tests were performed in the painful area and on the opposite side in ten cluster headache patients. The studies were carried out with and without local anaesthesia. No differences between histamine skin response in the painful region compared with the contralateral side were revealed. This study concerns the part of the triple response which is the result of a direct action of histamine on the skin vasculature (mediated by both H1 and H2) histaminergic receptors, i.e. wheal and redness, and the flare, which is the result of neurohumoral mechanisms.
Cephalalgia 1985 Jun
PMID:Cluster headache: histamine skin tests in the painful area. 401 21

Clinical experiences with the use of Aconcen as a contraceptive (269 women) and in the treatment of ovarian dysfunction, dysmenorrhea, andometriosis, and other disorders (181 women) is reported. Contraceptive efficiency was 100%. Therapeutic results were generally good. Side effects included spotting and breakthrough bleeding, nausea, headache, loss of libido, breast swelling, and weight gain. 21 women discontinued treatment because of side effects.
Med Welt 1969 Jan 11
PMID:[Oral contraception and gynecologic therapy]. 417 15

Forty-two patients with a history of egg sensitivity were evaluated for receiving avian-grown vaccines. After giving a history and undergoing physical examination, each patient was skin-tested with egg antigens and six egg-propagated vaccines, given an oral egg challenge, and finally, when possible, given a vaccine challenge. Thirty-seven of the 42 patients (88%) were ultimately given one or more of the vaccines with no reactions or only minimal ones to both egg protein and vaccine; they had mild reactions consisting of pruritus, headache, and apprehension. Immunization was withheld from three patients who had a history of severe reactions after egg ingestion and strongly positive skin reactivity to both egg and vaccine. A history of egg intolerance should not, by itself, disqualify a patient from receiving one of these vaccines. However, a history of exquisite sensitivity to egg protein indicates that a severe vaccine reaction is likely. An intradermal skin test utilizing 0.02 ml of a 1:100 dilution of the vaccine and resulting in a wheal of greater than 5 mm was found to be the test that most reliably predicted those patients who should not receive the vaccine.
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PMID:The safety of egg-containing vaccines for egg-allergic patients. 685 25

A discussion of which risk factors have been established as significant in prescribing O.C.s (oral contraceptives) is presented. The estrogen component of O.C.s influences the vitamin K dependent coagulation factors II, VII, IX, and X and causes disturbances in hemodynamics, leading to such illnesses as thromboembolism and myocardial infarction. 5% of O.C. users develop hypertension in the first 5 years of use. Previous cardiovascular illness, hypertension, vascular disorders, and other conditions are considered contraindications to O.C. use. Women who smoke, get migrane headaches, or who are over 35 years of age more often develop cardiovascular illness during O.C. use. Obesity, diabetes and hyperlipidemia are among the various risk factors that are related to developing cardiovascular illness or hypertension during O.C. use. O.C. users also can develop gall bladder illnesses; cholcystitis and cholelithiasis are contraindications to O.C. use. Post-pill amenorrhea occurs in .8-1% of O.C. users. O.C. users should undergo gynecological and medical checkups every six months; special consideration should be given if any of the risk factors are present.
Med Welt 1980 May 02
PMID:[Contraception in female risk patients]. 740 70

The frequency and intensity of undesirable side effects after protective vaccination against influenza with a commercially available vaccine were studied. 82 gainfully employed persons of both sexes were questioned in respect of local reactions such as weal and flare reactions, itching, sensation of heat, tenderness on pressure, and impeded movement, as well as systemic reactions e.g. elevated temperature or fever, profound sweating, headache, malaise, and insomnia. In 61 of 82 questioned persons local reactions occurred within 24 hours after vaccination, mainly weal and flare reactions and tenderness on pressure. 10 persons had systemic reactions, chiefly headache and fever, 39 of the questioned persons who reported on undesirable effects considered these impairments to be slight, whereas 28 of the group did not feel that the impairments disturbed or upset them in any way.
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PMID:[Tolerance of preventive influenza vaccination with a subunit vaccine]. 828 99

Several controlled clinical trials have shown that specific immunotherapy (SIT) using incremental injections of allergens can be effective in the treatment of allergic rhinitis and asthma. Nevertheless, the risk of side effects have led to some recommended limitations of SIT. Enzyme-potentiated desensitization (EPD) is a proposed method for immunotherapy with very low doses of mixed allergens plus beta-glucuronidase enzyme, for which irrelevant or no side effects have been claimed. The aim of this study was to determine the clinical efficacy of EPD in the treatment of pollinosis. A double-blind placebo-controlled trial of EPD among 20 patients sensitive to Parietaria and grass pollen was performed. All patients recorded daily symptom scores for nine months following a single intradermal injection of EPD or buffered saline received in February. Symptoms recorded were nasal itching and obstruction, sneezing, rhinorrhea, itchy eyes and excessive tear production. Moreover, total and specific lgE were measured and CD3+, CD4+ and CD8+ peripheral blood lymphocytes were counted at different times. In the same period, ten additional subjects, with an allergic clinical profile similar to the subjects admitted to the double-blind trial, were studied in an open clinical trial in order to evaluate the effects of EPD without enzyme using a mixture of allergens. Symptom scores were higher in the placebo group (p < 0.001), with a similar level of significance for both global symptom score and for each individual symptom. Active-treated patients had a significant post-treatment increase in the mean percentage of T-CD8+ peripheral blood cells and a significant post-seasonal decrease in the mean percentage of Parietaria specific lgE. On the contrary, placebo-treated patients had a borderline significant post-seasonal decrease in the mean percentage of CD8+ circulating cells and a significant seasonal increase in the mean percentage of Parietaria specific lgE with no significant post-seasonal decrease. Finally, clinical results of the mixture of allergens injection were similar to those of the placebo in the double-blind trial. EPD injection caused only an asymptomatic, local wheal and flare lasting about two hours. Two patients (20%) in the active-treated group experienced a delayed, mild, unusual headache lasting about two days. In conclusion, EPD is clinically effective in the treatment of pollinosis. Some immunological modifications observed in the EPD-treated patients suggest an EPD-induced enhancement of tolerogenic mechanisms like "immune deviation."
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PMID:Effects of enzyme-potentiated desensitization in the treatment of pollinosis: a double-blind placebo-controlled trial. 884 2

There are a few reports of side-effects of LHRHa treatment in childhood, the mechanisms of which remain little understood. Such effects can be local reactions: erythema, induration, wheal and sterile abscess formation, which can be possible causes of therapy failure. There are negative effects on growth velocity and final height requiring rhGH therapy or a suppressive treatment when bone age >13 years. Excessive weight gain can occur by various mechanisms: menopausal-like phenomena, or LHRHa influence on hypothalamic and/or leptin-mediated control of body weight. Other possible adverse effects involve increased ovarian volume with possible POS development; however, there is no evidence correlating LHRHa, hyperandrogenism and POS. The latter appears related to CPP onset with pre-existing hyperandrogenism, although lengthier follow-up is necessary to confirm this. Bone density decreases during therapy, but final peak bone mass is in the normal range. Frequent transitory side-effects include headaches, hot flushes, depression and irregular menses.
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PMID:Side effects of GnRH analogue treatment in childhood. 1096 24

Five hundred and twelve patients with chronic idiopathic urticaria (CIU) were treated with fexofenadine at a dose on 180 mg/day. Maximum number of patients were between 20 to 40 years of age and female to male ratio was 1.45:1. The severity of itching was calculated on a scale of 0 to 4 and was recorded by the patients. The mean daily total symptom score (TSS) was measured as sum of the patients' pruritus and number of wheal scores (0 to 7). A mean TSS was determined for each week. Baseline TSS came down to '0' by 4 weeks in all groups except those with TSS 4. There was no correlation between the baseline TSS and degree of improvement. Of 512, 14 (2.73%) patients did not complete the study. The commonest adverse effect was headache (9.04%). There was no report of drowsiness or cardiac arrhythmia. In no patient fexofenadine had to be withdrawn because of its adverse effects.
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PMID:Evaluation of the efficacy and safety of fexofenadine in the management of chronic idiopathic urticaria: a prospective study with 512 patients. 1765 81

Pituitary adenylate cyclase-activating peptide-38 (PACAP38) and vasoactive intestinal peptide (VIP) belong to the same secretin-glucagon superfamily and are present in nerve fibers in dura and skin. Using a model of acute cutaneous pain we explored differences in pain perception and vasomotor responses between PACAP38 and VIP in 16 healthy volunteers in a double-blind, placebo-controlled, crossover study. All participants received intradermal injections of 200 pmol PACAP38, 200 pmol VIP and placebo into the volar forearm. Measurements included pain intensity on a visual analog scale (VAS), blood flow by laser Doppler flowmetry, visual flare and wheal. Pain intensities after PACAP38 and VIP were mild and limited to a short time of about 100 s after injection. The area under the VAS-time curve was larger following PACAP38 (P = 0.004) and VIP (P = 0.01) compared to placebo. We found no statistical difference in pain perception between PACAP38 and VIP. Skin blood flow increase, flare and wheal were larger after both PACAP38 (P = 0.011) and VIP (P = 0.001) compared to placebo. VIP induced a considerably larger increase in skin blood flow, flare and wheal than PACAP38 (P = 0.002). In conclusion, we found that peripheral nociceptive cutaneous responses elicited by PACAP38 and VIP are similar in healthy volunteers. This suggests that acute pain and vasomotor responses following intradermal injections of PACAP38 and VIP are primarily mediated by VPAC receptors.
J Headache Pain 2010 Aug
PMID:Cutaneous nociception and neurogenic inflammation evoked by PACAP38 and VIP. 2045 93


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