Nickel in intercellular fluid. Comparison between nickel-allergic patients and controls.

A random sample of 100 men and 100 women was examined for whole-blood concentrations of mercury, lead, cadmium and selenium, and the serum concentrations of selenium, nickel, fluoride, aluminium, zinc and copper. Major predictors were sex, hormonal factors (pregnancy, menopause, use of oral contraceptives), age, tobacco smoking and alcohol drinking. Among notable associations, increased blood-mercury was related to the presence of more than four amalgam fillings in the teeth. Blood-mercury correlated with blood-selenium, but a relation to fish intake could only be demonstrated for the former parameter. In women, blood-lead appeared to increase with age, with the highest levels seen after the menopause. Serum-nickel was slightly lower in patients with nickel-related contact eczema. Only the selenium concentrations showed a slight increase in individuals taking mineral supplements. Serum-zinc concentrations decreased considerably during the day. Thus, due to the substantial influence of physiological and environmental factors, individual results must be interpreted in the light of the known predictors for the trace element concentration. However, population-based reference intervals for trace elements in blood are useful to explore geographic and temporal variations.

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Blistering time as a parameter for the strength of dermoepidermal adhesion: a systematic review and meta-analysis

Hatje

Richter

Blume-Peytavi

et al. 2014

Br J Dermatol

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Skin ageing is associated with a flattening of the dermoepidermal junction and a less effective anchoring system, predisposing to bulla formation, trauma and shear-type injuries. An artificial and controlled technique for standardized dermoepidermal separation is the suction blister method, whereby the strength of dermoepidermal adhesion is characterized by blistering time. To identify and quantify influencing factors on blistering time in healthy humans. A search in the Medline and Embase databases (1946 to June 2014) and in reference lists was conducted. In total, results of 146 suction blister experiments in 3418 individuals reported in 59 publications were analysed. The median blister diameter was 6 mm (IQR 5-6) and the median suction pressure was -210 mmHg (IQR -200 to -300), resulting in a median blistering time of 75 min (IQR 48-120). In the multivariate model, skin temperature and age were the strongest predictors for suction blistering time (P < 0·001, R(2) adjusted = 0·707). This strong association between temperature and suction blistering indicates that the dermoepidermal junction loses its strength with increasing skin temperature. This finding supports the practice of skin and tissue cooling to prevent injuries. The increased vulnerability of the skin seems to exist irrespectively of applied mechanical loads. We conclude that blistering time is an important and clinically relevant (outcome) parameter measuring the structural and mechanical integrity of deeper cutaneous layers.

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Nickel in intercellular fluid. Comparison between nickel-allergic patients and controls.

Abstract: No abstract available.

Cited by 5 publications

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Absorption and Retention of Nickel from Drinking Water in Relation to Food Intake and Nickel Sensitivity

Absorption and Retention of Nickel from Drinking Water in Relation to Food Intake and Nickel Sensitivity

Reference intervals for trace elements in blood: significance of risk factors

Blistering time as a parameter for the strength of dermoepidermal adhesion: a systematic review and meta-analysis

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