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Stratum corneum lipids are an important determinant for both water-retention function and permeability-barrier function in the stratum corneum. However, their major constituent, ceramides, have not been analyzed in detail in skin diseases such as atopic dermatitis that show defective water-retention and permeability-barrier function. In an attempt to assess(More)
Insulin, contraction, and the nitric oxide (NO) donor, sodium nitroprusside (SNP), all increase glucose transport in skeletal muscle. Some reports suggest that NO is a critical mediator of insulin- and/or contraction-stimulated transport. To determine if the mechanism leading to NO-stimulated glucose uptake is similar to the insulin- or(More)
To elucidate the mechanisms that are involved in the decrease of ceramide levels in atopic dry skin and in aged skin, we examined both the activities of beta-glucocerebrosidase, which is a major enzyme in ceramide production, and of ceramidase, which is an essential enzyme in ceramide degradation, in the stratum corneum of atopic dry skin and aged skin. The(More)
Epidermal basal cell injury with colloid body formation is a characteristic feature of lichen planus. Infiltrated cells are thought to be responsible for the epidermal injury. Ultrastructural findings of colloid bodies are typical of apoptosis. Granzymes in cytotoxic T lymphocytes are involved in apoptosis probably together with perforin. Based on this(More)
We describe 23 cases of unusual brownish pigmentation occurring over the bony tissues such as clavicle, scapula or vertebrae. There were 19 females and 4 males. The age ranged from 18 to 59, mostly between 20 and 35 years. Since the first observation in 1977, cases gradually increased. The pigmentation usually showed ripple pattern on the upper back and(More)
Physical exercise promotes glucose uptake into skeletal muscle and makes the working muscles more sensitive to insulin. To understand the role of insulin receptor (IR) signaling in these responses, we studied the effects of exercise and insulin on skeletal muscle glucose metabolism and insulin signaling in mice lacking insulin receptors specifically in(More)
Previously, we demonstrated that there is a marked reduction in the amount of ceramide in the stratum corneum of both lesional and nonlesional forearms in atopic dermatitis (AD), suggesting that an insufficiency of ceramides in the stratum corneum is an etiologic factor in atopic dry and barrier-disrupted skin. In this study, we investigated, as a possible(More)
The aim of the study was to estimate insulin sensitivity (SI), insulin secretion, and glucose effectiveness (SG) in 10 subjects with normal glucose tolerance (eight men and two women) with a family history of non-insulin-dependent diabetes mellitus (NIDDM offspring). Ten glucose-tolerant subjects (eight men and two women) without a family history of NIDDM(More)
We studied the regional variations and seasonal changes of ceramide quantities in the stratum corneum of human skin. In summer, the total lipid amounts extracted from the stripped stratum corneum were highest in the forehead, followed by the chest and upper back, with the lowest level in the sole of the foot. In winter, while the total lipid distribution(More)
BACKGROUND A study was undertaken to determine whether swimming training improved aerobic capacity, exercise induced bronchoconstriction (EIB), and bronchial responsiveness to inhaled histamine in children with asthma. METHODS Eight children with mild or moderate asthma participated in swimming training every day for six weeks. The intensity of training(More)