The effect of sex hormones on irritant and allergic response: possible relevance for skin testing
The effect of sex hormones on irritant and allergic response: possible relevance for skin testing
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性激素对刺激和过敏反应的影响:与皮肤测试的可能相关性
DOI:
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发表时间:
2009
影响因子:
10.3
通讯作者:
H. I. Maibach
中科院分区:
文献类型:
--
作者:
M. Farage;E. Berardesca;H. I. Maibach
SIR, The cyclical variations of progesterone and oestrogen that define the menstrual cycle represent a major biological influence on the female body. The skin has highly sensitive receptors for oestrogen and progesterone, and many dermatological conditions are affected by oestrogen and progesterone levels (Table 1). Rare autoimmune disorders known as oestrogen dermatitis and autoimmune progesterone dermatitis, believed to be cutaneous reactions to endogenous sex hormones, are also reported in the literature. Oestrogen is also postulated to be a ‘natural modulator’ of the immune system, with high oestrogen levels acting to inhibit allergic response. Ovulation occurs in conjunction with peak oestrogen levels in a woman of reproductive age. Mast cell degranulation has been reported during this phase, as well as decreases in T-cell numbers, leading to depression of cellular immune response. B-cell numbers have been observed to increase in coincidence with ovulation. Sex hormones influence the dermatological expression of allergic response. Correlation of menstrual cycle timepoints with symptom onset helps to define the particular sex hormone associated with cutaneous symptoms. Numerous studies demonstrate increased reactivity to antigens in the premenstrual phase as well as deterioration of atopic skin conditions immediately prior to or during menstruation. In a study of 143 women with eczema, 28Æ7% reported worsening of symptoms the week before menstruation. In a study of 286 women with atopic dermatitis, 96% of those who reported cyclic variations in symptoms reported deterioration of symptoms during the week preceding menses with rapid improvement after the onset of menstrual flow. The prevalence of premenstrual worsening of atopic dermatitis symptoms, in published reports, was as high as 100%. The follicular phase of the menstrual cycle, in contrast, seems to inhibit manifestation of allergic contact dermatitis. Although most studies indicate a suppressed allergic response at the time of ovulation, others show an increased sensitivity in the latter phase of the menstrual cycle or no association of allergic response with the menstrual cycle at all. Skin testing with the objective of evaluating the influence of sex hormones on allergies has yielded interesting results. Kirmaz et al. found that while skin prick test (SPT) reactivity to histamine did not vary throughout the menstrual cycle, serum estradiol was positively correlated with SPT reactivity to allergens in the middle of the menstrual cycle. Likewise, Kemmett and Tidman observed that, despite constant histamine levels, maximal erythema in women with atopic dermatitis occurred at onset of menstruation. Numerous factors can influence skin testing results (Table 2). Best practice in skin testing of allergic or irritant response would ensure standardization of protocols with regard to the choice of irritant, test site, environmental controls, batch volume and concentration, delivery vehicle, use of occlusive dressing, time to evaluation, assessment tools and (in women) menstrual cycle phase. Individual variations, including the possibility of a booster effect, must be considered as well. In a study of 20 patients by Rohold et al., heightened skin reactivity was exhibited in patients at a second nickel sulphate patch test despite a 6-week interval between tests (0Æ02 < P < 0Æ05), confirming the possibility of a booster effect after a putatively reasonable amount of time for recovery. Intraindividual variations, over four repeated patch testings, were also observed to vary as much as 100-fold. In conclusion, available research supports anecdotal reports that dermatological conditions in women of reproductive age follow a cyclic pattern of symptom severity that is associated with fluctuating levels of female sex hormones, with most authors observing a heightened allergic response in the progestinic phase. Definitive conclusions with regard to the Table 1 Dermatological clinical conditions with reported exacerbation of symptoms in association with female sex hormones
影响因子:
3.3
作者:
Liang,Jinxiao;Ali,Fiza;Ramaiyer,Malini;Borahay,MostafaA
通讯作者:
Borahay,MostafaA