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Query: UMLS:C0033774 (pruritus)
 14,546 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Cutaneous fibrinolytic activity was found to be increased in a patient with aquagenic pruritus both before and after contact with water. This could explain the lack of wheal formation in this affection, which is characterized by increased histamine release.
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PMID:Increased cutaneous fibrinolytic activity in a case of aquagenic pruritus. 672 70

Nonspecific therapy of asthma with Solganal and insulin showed excellent results in more than 80% of the patients, in which 50% or more recovered from asthma completely. Over all, recovered condition lasted for a long period of time. Solganal-treated patients showed resistance to acetylcholine provocation tests, good results in Tromp's water bath tests, and decreases in intensity of itching and erythema of P. K. reaction and of those caused by intracutaneous histamine injection. Animal experiments investigating damage to the liver, kidney and heart with Solganal showed no serious findings.
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PMID:Nonspecific therapy of asthma with gold preparation and insulin. 678 12

Three patients were studied in whom brief contact of the skin with water at any temperature evoked intense itching without visible changes in the skin. The patients were otherwise apparently healthy, and this chronic and disabling disorder tended to attract a "psychogenic" label. Pharmacological studies showed that the condition was associated with local release of acetyl choline in the skin, mast-cell degranulation, and raised blood histamine concentrations. It responded well to antihistamines in two of the three patients. Aquagenic pruritus is probably common, but it is generally unrecognised and may be misdiagnosed. Antihistamines may induce a good therapeutic response.
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PMID:Aquagenic pruritus. 678 68

The effects of epinephrine 1/200,000 as an adjuvant to epidural morphine were investigated in three healthy male volunteers, during 26-h observation sessions. Peak blood concentrations of morphine were 44 +/- 12.9 ng/ml after plain morphine and 13.7 +/- 6.7 ng/ml after epinephrine-morphine. Cutaneous hypalgesia was more intense, faster in onset, and longer in duration after epinephrine-morphine than after plain morphine, and analgesia to ice-water immersion of extremities lasted longer. Adverse side effects of pruritus, nausea, vomiting, and difficulty of micturition were also more intense after epinephrine-morphine, and respiratory sensitivity to CO2 was depressed more severely between 6 and 16 h. The results indicated that epinephrine 1/200,000 reduces vascular absorption of epidural morphine and intensifies all the manifestations of cord and brainstem uptake.
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PMID:Influence of epinephrine as an adjuvant to epidural morphine. 682 60

26 patients with severe hypertension (10 essential, 9 renal parenchymatous, 7 renovascular) and a mean age of 42 years were treated with the new oral converting enzyme inhibitor captopril (SQ 14225). During the initial phase with a standardized triple therapy (STT) consisting of propranolol (maximum 320 mg/day), hydralazine (maximum 200 mg/day) and hydrochlorothiazide (maximum 100 mg/day) or furosemide (maximum 250 mg/day) mean systolic and diastolic blood pressure values remained almost unchanged (184 +/- 32/111 +/- 17 mm Hg to 179 +/- 34/112 +/- 19 mm Hg), indicating true therapy resistance to conventional antihypertensive therapy. After discontinuing each antihypertensive agent captopril was then titrated from 3 X 25 mg/day to a maximum of 4 X 150 mg/day. Mean systolic and diastolic blood pressure values 2, 4, 8, and 16 weeks after starting captopril were 154/95, 155/97, 149/93 and 143/91 mm Hg. The corresponding mean captopril doses were 242, 280, 325 and 299 mg daily. During captopril medication mean systolic and diastolic blood pressure values were significantly lower (p less than 0.05 to p less than 0.005) than during STT. Throughout the observation period of 16 weeks only 15% of the cases were on monotherapy with captopril whereas 62% needed the addition of a diuretic (hydrochlorothiazide or furosemide). In 23% of the cases even the combination of captopril and diuretic was insufficient and thus propranolol was added as a third drug. The side effects observed were 1 case with renal water and fluid retention and with reversible skin rash and 1 with pruritus. The results demonstrate that captopril has good blood pressure lowering activity in patients with treatment-resistant hypertension. However, in the majority of our cases the addition of a diuretic was necessary. Finally, some patients required a beta-blocker as a third drug.
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PMID:[Captopril in treatment-resistant hypertension (author's transl)]. 702 91

An 11-yr-old girl presented with a history of urticaria induced by warm or cool showers, exercise, and emotional stimuli. During evaluation she repeatedly developed generalized punctate urticaria, pruritus, palpitations, and headaches after warm baths or exercise, and she had a positive methacholine skin test. She developed similar lesions and pruritus after local application of sterile water, tap water, ethanol, normal saline, or 3% saline. The diagnosis of combined aquagenic and cholinergic urticaria was made and presented a unique opportunity to study and compare mediator release and clinical symptoms in both conditions. The patient was submerged in bath water at either 37 degree or 41 degree C to induce either aquagenic or cholinergic urticaria, respectively. Histamine was released into the systemic circulation in both conditions in a similar time course; however, systemic symptoms occurred only after the 41 degree C bath. After failure to induce tolerance to the 41 degree C bath water, hydroxyzine therapy was instituted. One week later she was rechallenged; few symptoms appeared, and a rise in serum histamine was not detected as had been shown in previous challenges. The data suggest that in our patient, hydroxyzine may have contributed to the inhibition of both histamine release and the appearance of symptoms during hot bath challenging.
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PMID:Evaluation of a patient with both aquagenic and cholinergic urticaria. 731 13

We describe the case of a 36 ys aged woman complaining of symptoms of oculorhinitis with itching, occasional dyspnea and laryngeal constriction. The patient related her symptoms with the emission of dusts and steam from a factory in the neighbourhood producing manufactures using polyester resins dissolved in styrene. No bronchospastic response was obtained after challenge with methacoline and ultrasonic nebulization of distilled water, which instead provoked a significant increase of nasal resistance. The inhalation challenge with styrene produced a dual nasal response. To our knowledge this is the first case of non occupational neighbourhood rhinitis provoked by styrene.
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PMID:[A new environmental pathology: styrene-induced rhinitis]. 772 Sep 59

Smog in hot summers contains noxious agents resulting from the combustion of fossil fuels whose levels are highest in industrial areas. Reactions of the oxygen radical of ozone with sulfur dioxides, nitrous oxides, hydrocarbons and the water molecules of the nasal mucous membrane presumably support the formation of acids such as H2SO4 or HNO3 (from H2SO3 or HNO2 [3, 4]). Acid corrosion seems to damage the mucous membrane, leading to local erosions, bleeding, and necrotic changes. The collapsed local defense system and necrotic mucosa are an ideal culture medium for a wide spectrum of pathogenic bacteria. Main signs of tissue pathology are bleeding spots or pustules, nasal congestion, degenerative mucositis, pruritus, as well as epipharyngeal and pharyngeal irritation. Therapy is possible with topical or oral antibiotics. Prophylaxis includes avoiding touching the mucous membranes and reducing outdoor activity on hot summer days. Further clinical and scientific examination would be helpful in determining additional explanations.
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PMID:[Does summer smog damage the nasal mucosa and contribute to bacterial rhinitis?]. 779 Feb 39

The pathogenesis of pruritus in patients undergoing chronic haemodialysis is unknown. Dryness of the skin is common in uraemic patients, and a correlation between xerosis and pruritus has been reported. Transepidermal water loss (TEWL) is a measure of cutaneous barrier function and also reflects skin water content. In this study the transepidermal water loss was measured at four sites pre- and postdialysis in 20 subjects undergoing chronic haemodialysis and in 16 healthy controls. Patients were weighed before and after dialysis and blood was taken for measurement of urea, creatinine, calcium, magnesium, phosphate and haemoglobin. All patients had parathyroid hormone measured within 3 months of the assessment. There was no significant difference in TEWL between patients and controls, with control values in general being between pre- and postdialysis rates of TEWL, and no correlation between TEWL and the presence or absence of pruritus. There was no significant differences between the pruritic and non-pruritic patients for any of the biochemical markers measured. Finally there was no significant correlation between the percentage water loss and TEWL. These findings indicate that pruritus of chronic haemodialysis is not related to abnormalities of cutaneous permeability.
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PMID:Relationship between pruritus, transepidermal water loss, and biochemical markers of renal itch in haemodialysis patients. 781 95

Rice field dermatitis is an occupational health problem in Assam. The afflicted paddy field workers develop exanthema on the exposed parts of their skin mainly legs and arms when they come in contact with water in rice fields. Itching sensations start after 30 minutes to 1 1/2 hours after initial exposure. After 6-12 hours there is intensely pruritic macular eruption and in a few cases secondary skin infection may also develop. The clinical course of the disease is suggestive of cercarial dermatitis. Numerous gastropod snails belonging to families Lymnaeidae, Bulinidae and Planorbidae were collected from paddy fields and were investigated for cercarial infection. It was found that planorbid snails were infected with animal schistosome cercariae. These cercariae were able to invade human skin and caused dermatitis in human volunteers after repeated exposure.
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PMID:Paddy field dermatitis in Assam: a cercarial dermatitis. 796 79


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