BACKGROUND: The epidermal permeability barrier necessary for terrestrial life resides in the intercellular spaces of the stratum corneum and is composed of lipids. OBJECTIVE: Since strrtum corneum lipid may be important for the permeability barrier, we studied the differences and effects of experimentally altered barrier function using acetone and tape-stripping technique. METHODS: The permeability barrier of hairless mouse was disrupted by tape-stripping and acetone treatment and the recovery rate was assessed by histochemical staining, electron microscopic examination and lipid analysis. RESULTS: Although the transepidermal water loss recovered completely by 48 hours in both of the acute models, acetone treated samples seem to have on over-all better recovery rate than tape-stripped samples. The return of barrier function to normal in both tape-stripped and acetone-treated skin was accompanied by a comparable return of normal nile red and ruthenium tetroxide staining. The amount of lipid in stratum corneum paralleled both the return of barrier function towards normal and the extent of prior damage to the barrier in acetone treated skin, yet, the lipid synthesis in tape-stripped skin showed a slower return of lipid content. CONCLUSION: The difference in the recovery rate of the two acute models may be due to the fact that acetone mainly extracts intercellular lipids, whereas, tape-stripping has a prolonged effect by removal of comeocyte in addition to the intercellular lipids. This shows the importance of comeocytes as well as the intercellular lipid bilayer in the recovery of normal barrier function.
Acetone* ; Animals ; Extracellular Space ; Lipid Bilayers ; Mice ; Mice, Hairless ; Permeability ; Ruthenium ; Skin ; Water

Sensitivity to estrogen has been described previously. The clinical picture is varied with pruritus, either generalized or localued or as urticaria. The hallmark of estrogen dermatitis is the cyclic premenstrual flare. The patient reported here had cyclic erythema multiforme-like lesions and showed a positive intradermal skin test to estrogen. A 20-year-old female patient presented with a periodic 5 year duration of skin lesions on both hands. The eruption commenced in the second half of the menstrual cycle, worsened through the luteal phase but the lesion almost disappeared during menstruation. An intradermal skin test to estrone showed positive results. However, a skin test with medroxyprogesterone acetate was negative. After systemic steroid and antihistamine therapy, the lesions were found to be significantly improved.
Dermatitis* ; Erythema ; Erythema Multiforme ; Estrogens* ; Estrone ; Female ; Hand ; Humans ; Luteal Phase ; Medroxyprogesterone Acetate ; Menstrual Cycle ; Menstruation ; Pruritus ; Skin ; Skin Tests ; Urticaria ; Young Adult

Stratum corneum lipids, which are enriched in sphingolipids, free fatty acids, and cholesterol, are required for epidermal barrier function. When the epidermal permeability barrier is perturbed, the transepidermal water loss returns to normal by 24-48 hours in parallel with the reappearance of stratum corneum lipids, derived from secreted lamellar bodis and accelerated lipid synthesis. Recent evidence shows that topical application of individual lipids interferes with barrier recovery while complete mixtures of cholesterol, fatty acids, and ceramides facilitate recovery after barrier disrupton. Metabolic imbalances and perturbed barrier function can be either the cause or the consequences of the pathobiology of scaling disease. Many skin diseases relating cornification and dryness are indeed related to abnormality of one or several combinations of lipids. Recently the cytokines which have changed during barrier recovery seem to be important in understanding of epidermal lipid homeostasis as well as barrier recovery.
Ceramides ; Cholesterol ; Cytokines ; Fatty Acids ; Fatty Acids, Nonesterified ; Homeostasis* ; Permeability ; Skin Diseases ; Sphingolipids ; Water

PURPOSE: A number of studies have been published on the effect of growth hormone therapy over 1-3 years in children with growth hormone deficiency(GHD) & Familial short stature(FSS). So far final height data are seldomly available. Final heights of GH treated children with GHD & FSS were evaluated. METHODS: 10 Children with GHD and 69 children with with FSS were enrolled for the study. They were treated with GH 0.1IU/kg/daily in 10 GHD and 20 children with FSS. They were grown up and reached adult height. 49 children with FSS were not treated at all. Facors influencing final height were investigated. RESULTS: 1) All patients with GHD(Idiopathic 8 cases, Organic 2 cases) had additional gonadotropin deficiency and had multiple pituitary hormone deficiency. 2) At start of GH treatment boys of idiopathic GHD were 9.8 years old and 12.4 years old in girls and their mean height was 114.8cm(-2.8SDS), 123.0cm(-2.9 SDS)in boys and girls respectively. Boy with orgnaic GHD was 11.1 years and 6.7 years old in girl. Their height were 126.0cm(-1.5SDS) and 104cm(-1.2SDS) respectively. 3) Mean final height of idiopathic GHD was 167.6cm(-0.5SDS) in male and 161.0 cm(0.7SDS) and that of organic GHD was 173.0cm(0.5SDS) in male and 157cm (0SDS) in girl. 4) Mean Final height in untreated children with FSS was 159.8+/-.2cm(-1.6 SDS)in male and 149.6+/-.3cm(-1.4SDS) in female. Mean final height of GH treated in FSS was 162.5+/-.1cm(-1.5SDS) in male and 152.0+/-.4cm(-1.2SDS) in female But there was no statiscally difference between untreated and treated children in final height. 5) The age of onset of menarche was 12.74+/-.78 years old in GH treated group (n=12) and 12.45+/-.16 years old in untreated group(n=34). CONCLUSION: The GH administration in patients with GHD has been confirmed for growth promotion. but in case of FSS there was no significant difference between treated and untreated group. More further studies are needed for the confirmation of the efficacy of GH therapy in patients with FSS.
Adult ; Age of Onset ; Child* ; Female ; Gonadotropins ; Growth Hormone* ; Humans ; Male ; Menarche

Drug-induced parkinsonism (DIP) is the second-most-common etiology of parkinsonism in the elderly after Parkinson's disease (PD). Many patients with DIP may be misdiagnosed with PD because the clinical features of these two conditions are indistinguishable. Moreover, neurological deficits in patients with DIP may be severe enough to affect daily activities and may persist for long periods of time after the cessation of drug taking. In addition to typical antipsychotics, DIP may be caused by gastrointestinal prokinetics, calcium channel blockers, atypical antipsychotics, and antiepileptic drugs. The clinical manifestations of DIP are classically described as bilateral and symmetric parkinsonism without tremor at rest. However, about half of DIP patients show asymmetrical parkinsonism and tremor at rest, making it difficult to differentiate DIP from PD. The pathophysiology of DIP is related to drug-induced changes in the basal ganglia motor circuit secondary to dopaminergic receptor blockade. Since these effects are limited to postsynaptic dopaminergic receptors, it is expected that presynaptic dopaminergic neurons in the striatum will be intact. Dopamine transporter (DAT) imaging is useful for diagnosing presynaptic parkinsonism. DAT uptake in the striatum is significantly decreased even in the early stage of PD, and this characteristic may help in differentiating PD from DIP. DIP may have a significant and longstanding effect on patients' daily lives, and so physicians should be cautious when prescribing dopaminergic receptor blockers and should monitor patients' neurological signs, especially for parkinsonism and other movement disorders.
Aged ; Anticonvulsants ; Antipsychotic Agents ; Basal Ganglia ; Calcium Channel Blockers ; Dopamine Plasma Membrane Transport Proteins ; Dopaminergic Neurons ; Humans ; Movement Disorders ; Organothiophosphorus Compounds ; Parkinson Disease ; Parkinsonian Disorders ; Tremor

To evaluate the historical trend of anesthetic experience for the past 22 years a total of 68,473 cases which were performed at the National Medical Center from 1959 to 1981 were studied. To simplify the analysis statistically, the author selected the anesthetic cases every other year(12 years). 1) General anesthesia was performed in more than 78% of the total cases and of this number endotracheal intubation has been used with increasing frequency(average 92.8%). 2) For intravenous induction, thiopental sodium was used as the main agent, in more than 90% since 1980. 3) Trichlorethylene, cyclopropane and ethylchloride which had been used since 1961, were abandoned from 1978 except for training purposes. Methoxyflurane was used from 1973 to 1979, but given up there after because of it's nephrotoxicity. The use of halothane has steadily increased(86% of the total inhalation anesthetics) and ethrane has also been used with increasing frequency since 1980. 4) Pancuronium has been used as a primary muscle relaxant instead of gallamine and D-tubocurarine which had been used as the main durgs from 1959 till 1979. 5) Innovar and morphine as intravenous anesthetics, have recently been with increasing grequency.
Anesthesia, General ; Anesthetics, Intravenous ; Enflurane ; Gallamine Triethiodide ; Halothane ; Inhalation ; Intubation, Intratracheal ; Methoxyflurane ; Morphine ; Pancuronium ; Thiopental ; Tubocurarine

Hydroa vacciniforme is a rare, chronic photosensitivity disorder manifested in childhood by recurrent vesicles that hea1 with srarring. We report a case of hydroa vacciniforme in which vesicles were induced with multiple exposures ta UVA. The clinical features and ap-propriate laboratory evaluation of hydroa vacciniforme are reviewed.
Hydroa Vacciniforme ; Photosensitivity Disorders

No abstract available.
Infectious Mononucleosis*

A case of multiple trichilemmal cysts (TC) is presented. TC is known to be a kind of keratinous cyst with lining cells showing trichilemmal keratiniration. A 63-year-old female patient presented with a 30 year duration of increasing in size and number of twenty five nodular lesions on the scalp. All twenty five TC on the scalp were totally excised and examined microscopically. However, the evidence of proliferation or malignant change like the previous case reports was not found in our case.
Female ; Humans ; Middle Aged ; Scalp