摘要:

The advent of the electronics age has resulted in the rapid growth and increasing importance of the electronics industry on a global scale. The main industrial processes are Fabrication of semiconductor wafers, printed circuit boards, the assembly of semiconductor devices, printed circuit boards and the final electronic products. The process carry the risk of various work hazards, among them dermatological hazards, These include exposure to irritants and allergens during common operations such as soldering, cleaning operations, materials handling, procedures For control of static electricity and low humidity in the work environment. Even the use of protective clothing may be associated with the risk of dermatitis, In spite of the numerous dermatological hazards, the risk for work‐related skin disorders among electronics workers appears to be low when compared to other industries. However, the vast size of the electronics workforce will contribute to large numbers of workers with occupational dermatoses. Occupational health personnel responsible for factories in the electronics industry should therefore be aware of the cutaneous hazards present, and how these may lead to work‐related dermato

ISSN:0105-1873    

DOI:10.1111/j.1600-0536.1990.tb01497.x

出版商:Blackwell Publishing Ltd    

年代:1990

数据来源: WILEY

摘要:

11 cases of contact dermatitis from Vulkan heat retainers are reported. The skin eruptions started on days 1–11 after the 1st day of exposure. The clinical picture varied from eczema through urticaria to purpura. In some cases, the symptoms were severe. Patch testing was performed in 10 individuals and all reacted positively to the heat retainer and/or the rubber glue used in the heat retainer. A series of rubber chemicals was patch tested in 7 patients and all showed positive reactions to diphenylthiourea (DPTU), and all but one to ethylene thiourea (ETU). TLC examination revealed a spot with the same RF‐value as DPTU in extracts of the adhesive, but no spot corresponding to ETU. There were no indications of impurities in the test preparations of DPTU and ETU. By HPLC, the content of DPTU in the adhesive was determined as 0.6%

ISSN:0105-1873    

DOI:10.1111/j.1600-0536.1990.tb01498.x

出版商:Blackwell Publishing Ltd    

年代:1990

数据来源: WILEY

摘要:

Hand eczema in relation to occupation was studied in an industrial city. Questionnaires were sent to 20,000 individuals aged 20–65 years, randomly selected from the population register of the city. Those subjects (1385) considering themselves to have had hand eczema within the previous 12 months were invited to a dermatological examination including patch testing. It was found that the reported 1‐year period prevalence of hand eczema in the total sample was 11.8%. The only occupational group reporting a statistically significant higher 1‐year period prevalence was service work, 15.4%. Among all occupations, cleaners turned out to have the highest period prevalence, 21.3%. Hand eczema was more common among people reporting some kind of occupational exposure. The most harmful exposure turned out to be to unspecified chemicals, water and detergents and dust and dry dirt. The use of protective gloves is reported and analyzed. The most common contact allergy was nickel, followed by cobalt, fragrance‐mix, balsam of Peru and colophony A statistically significant increase in contact allergy to colophony for women in administrative work was found. It is concluded that the type of hand eczema that is mostly dependent on occupation is irritant contact der

ISSN:0105-1873    

DOI:10.1111/j.1600-0536.1990.tb01499.x

出版商:Blackwell Publishing Ltd    

年代:1990

数据来源: WILEY

摘要:

A total of 8149 patients were patch tested with the preservative Bronopol in 7 European contact clinics. The Majority of patients (6507) were investigated in London. Reactivity was low, with a total of 10 irritant (0.12%) and 38 allergic reactions (0.47%). In only 17 cases (0.21%) was the patch test reaction to Bronopol considered to be of current or past clinical relevance. Concomitant sensitization to formaldehyde was present in about 1/3 of patients. Based on these figures, the present sensitization rate to Bronopol in Europe seems to be quite low, which may be related to its less frequent use as a preservative in cosmetics and medicaments in comparison to parabens or isothiazolinones.

ISSN:0105-1873    

DOI:10.1111/j.1600-0536.1990.tb01500.x

出版商:Blackwell Publishing Ltd    

年代:1990

数据来源: WILEY

摘要:

In some cases that have been diagnosed as contact allergy to nickel, there are repeated cutaneous eruptions of pompholyx, even in areas with no direct contact with the metal. The possible alimentary origin of dyshidrotic eczema should be considered when deciding on therapy. We have collected the clinical data for 24 patients with dyshidrotic eczema caused by nickel, to evaluate the benefit of a low‐nickel diet versus treatment with oral disodium cromoglycate, comparing both objective and subjective symptoms. A low‐nickel diet does not improve these patients but those treated with DSCG reacted better, from both objective and subjective point of view, than either the controls or the patients treated by diet. We next did intestinal permeability tests before therapy and after 15 days of treatment. We found that nickel uptake diminishes simultaneously with the reduction of absorption through the smaller aqueous “pores”. This phenomenon was greatest alter DSCG. We suggest that DSCG can help selected cases of po

ISSN:0105-1873    

DOI:10.1111/j.1600-0536.1990.tb01501.x

出版商:Blackwell Publishing Ltd    

年代:1990

数据来源: WILEY

摘要:

Cross‐reaction in allergic contact dermatitis (ACD) is a highly stereoselective process. The importance of thecisortransring junction in α‐methylene‐γ‐butyrolactones in cross‐reactivity was investigates by reacting Helenin® (mostly a mixture of natural allergenic sesquiterpene lactones alantolactone1and isoalantolactone2, which present acisring junction) in guinea pigs sensitized to model allergenic α‐methylene‐γ‐butyolactones:cis‐bicyclin lactone3and

ISSN:0105-1873    

DOI:10.1111/j.1600-0536.1990.tb01502.x

出版商:Blackwell Publishing Ltd    

年代:1990

数据来源: WILEY

摘要:

In an epidemiological study of occupational dermatitis in 15 different northern Italian animal feed mills, 204 workers were interviewed, examined and patch tested to 34 allergens, selected from the additives most commonly used in the animal feed mills under consideration. The prevalence of occupational contact dermatitis was 13.7% (28/204): 7.8% (16/204) irritant contact dermatitis and 5.8% (12/204) allergic contact dermatitis from animal feed additives. Among the latter, there were sensitizations, to our knowledge hitherto unreported in the literature: to indigo carmine (2 cases), monensin sodium (1 case), thiabendazole (1 case), methylchlorpindol (1 case) and amprolium hydrochloride (1 case) 3.9% (8/204) of the workers complained only of pruritus sine materia on exposed areas of the body. Contact dermatitis increased with respect to duration of employment: the difference in the rate of contact dermatitis between workers employed in animal feed mill for>10 years and those employed for<10 years was statistically significant (p<0.05), 6.8% (14/204) had latent sensitivity, which was more frequent in workers with

摘要:

A photoallergie reaction to fluorescein was demonstrated in a male diabetic by photopatch and photoprovocation tests. Sensitization was acquired by tonometries using a fluorescein‐containing local anesthetic, preceding fluorescein angiography for diagnosis of diabetic retinopathy. Histopathological examination of skin lesions induced in both photopatch and photoprovocation tests confirmed the diagnosis of photoallergic reaction to fluorescei

ISSN:0105-1873    

DOI:10.1111/j.1600-0536.1990.tb01504.x

出版商:Blackwell Publishing Ltd    

年代:1990

数据来源: WILEY

摘要:

139 workers from 3 ceramics factories underwent dermatological and allergological examination, using standard and occupational patch test series, in order to evaluate the prevalence of dermatitis and contact sensitization, to identify the most important sensitizing substances in the ceramics industry, and to correlate the results with possible risk factors such as atopy Hand dermatitis had affected 37% of the subjects examined. 27% of the workers were sensitized to 1 or more allergens. Of 52 subjects with dermatitis, 37% had allergic contact dermatitis and 63% irritant contact dermatitis. 18 subjects were found to be sensitized without showing any previous or present clinical symptoms. Atopy tended towards correlation with the overall incidence of dermatitis, though not with the prevalence of sensitization.

ISSN:0105-1873    

DOI:10.1111/j.1600-0536.1990.tb01505.x

出版商:Blackwell Publishing Ltd    

年代:1990

数据来源: WILEY

ISSN:0105-1873    

DOI:10.1111/j.1600-0536.1990.tb01506.x

出版商:Blackwell Publishing Ltd    

年代:1990

数据来源: WILEY