The current experiment pursued the time course of UVB-induced immune suppression of DNCB contact hypersensitivity(CHS) in guinea pigs. Both group B and C, received suberythemal doses of UVB on days -3, -2, -1, 0 and -6, -5, -4, 3 respectively, showed marked suppressions of CHS (56.36p;and56.25p,). However, the recovery of CHS from the UVB-induced suppression started by group D(UVB on days -9, -8, -7, -6: 67. 36%) and further extended to subsequent group E(UVB on days -12, -11, -10, -9: 78.82%), Group F(UVB on days -15, -14, -13, -12: 79.86%) and the final group G(UVB on days -18, -17, -16, -15: 81. 94%) in which the recovery of CHS slightly exceeded the control (group A:79. 86%).
Animals ; Dermatitis, Contact* ; Dinitrochlorobenzene* ; Guinea Pigs* ; Guinea*

S.I. of TCSA PCH (group B) and musk ambrette PCH (group D) were respectively g3 49% and 75.00 S.I. of group A and B, which were only challenged with TCSA and musk ambrette respectively without prior sensitization, were 33, 33% and 27. 78%. These data indicated the TCSA PCH (group B) was experimentally produced in guinea pigs when it compared to musk ambrette PCH (group D) and controls (group A and C) (Table 1). However, S.I. of TCSA PCH was somewhat lower than index of musk ambrette PCH.
Animals ; Guinea Pigs* ; Guinea* ; Hypersensitivity*

Urticaria pigmentosa developed in twins at the age of 6 weeks. They have numerous round to oval shaped, discrete or confluent reddish brown colored macules over whole body surface and neither twin had vomiting, diarrhea, flushing or irritability. Their relatives are unaffected. Biopsy specimen of. back lesion showed. pooling of mast cells in the upper dermis, and electron microscopic examinattion revealed normal mast cells.
Biopsy ; Dermis ; Diarrhea ; Flushing ; Humans ; Mast Cells ; Twins* ; Urticaria Pigmentosa* ; Urticaria* ; Vomiting

No abstract available.
Erythema*

Microsportcm gypseum is a geophilic fungi abundant in soil throughout the world. The infections may occur either from animal to man(zoophilic) or from soil to man (geophilic). Patierit of 13-year-old Korean male sought medical attention with skin lesion on scalp which showed scaly patch with broken hairs and a round pilar cyst like nodule. Identification of Microsporum gypseum was made by culture on Sabouraud agar media and microscopic exarnination.
Adolescent ; Agar ; Animals ; Epidermal Cyst ; Fungi ; Hair ; Humans ; Male ; Microsporum* ; Scalp ; Skin ; Soil ; Tinea Capitis* ; Tinea*

A 19-year-old man noticed a very slowly spreading erythematous macular lesion on his cheek when he was 5 years old. This asymptomatic and well circumscribed patch was covered with fine scales. He sought first medical attention at the age of 12 years and diagnosis was cutaneous tuberculosis was made by skin biopsy. Seven years after the second biopsy was made and it revealed a few spores within giant cells in the upper dermis. By mycologic study, it was identified as Paecilomyces lilacinus. The patient was put on the treatment of topical and oral antifungal agents. The skin lesion showed signs of improvement after 12 weeks of treatment.
Antifungal Agents ; Biopsy ; Cheek ; Child, Preschool ; Dermis ; Diagnosis ; Giant Cells ; Humans ; Paecilomyces* ; Skin ; Spores ; Tuberculosis, Cutaneous ; Weights and Measures ; Young Adult

This experiment pursued the time course of contact hypersensitivity to 2,4-dinitro-1-fluorobenzene (DNFB) and histologic changes of the cutaneous reaction in mice. The contact hypersensitivity reached a maximum 4 days after sensitization (96.9 +/- 6.7% vs. 22.7 +/- 1.3% in control) and persisted for 3 weeks. The cutaneous hypersensitivity reaction showed peak reactivity at 24 hr after challenge (96.2 +/- 4.7% vs. 11.5 +/- 1.7% in control), and persisted up to 96 hr (13.2 +/- 2.1%). Prime histologic changes observed in this experiment were the exocytosis of lymphoid cells and epidermal thickening which appeared at 20 hr after challenge. Edema, vasodilatation and increased mast cells were observed within the dermis at 4-8 hr. However, edema and vasodilatation disappeared gradually, but numbers of mast cell increased up to 96 hr. The dermal infiltrates were maximum at the 28-72 hr after challenge.
Animals ; Dermatitis, Contact/immunology/*pathology ; Dinitrofluorobenzene/*pharmacology ; Ear ; Female ; Mice ; Mice, Inbred BALB C ; Nitrobenzenes/*pharmacology ; Time Factors

PURPOSE: To report the first domestic case of choroidal neovascularization in a choroideremia patient treated with intravitreal bevacizumab injection. CASE SUMMARY: A 29-year-old male presented with a sudden decline in vision in the left eye. Fundus examination revealed areas of choriocapillaries and retinal pigment epithelium atrophy with macular hemorrhage. Fluorescein angiogram revealed vascular hyperfluorescence in the juxtafoveal area. Neurosensory detachment around the macula and increased central macular thickness was also observed using optical coherence tomography. Upon the diagnosis of choroideremia with choroidal neovascularization, the patient was treated with 1.25 mg intravitreal bevacizumab. Visual acuity improved after four injections of intravitreal Bevacizumab with improvement in both detachment and fluorescein leakage. CONCLUSIONS: In patients with choroideremia presenting sudden decline in vision, ophthalmologists should detect for possible choroidal neovascularization. The results from the present study show that judicious use of intravitreal Bevacizumab may be effective in such cases. Further studies with a large sample size and sufficiently long follow-up periods are required.
Adult ; Antibodies, Monoclonal, Humanized ; Atrophy ; Choroid ; Choroidal Neovascularization ; Choroideremia ; Eye ; Fluorescein ; Follow-Up Studies ; Hemorrhage ; Humans ; Male ; Retinal Pigment Epithelium ; Sample Size ; Tomography, Optical Coherence ; Vision, Ocular ; Visual Acuity ; Bevacizumab

Tinnitus is the perception of phantom noise without any external auditory sources. The degeneration of the function or activity of the peripheral or central auditory nervous systems is one of the causes of tinnitus. This damage has numerous causes, such as loud noise, aging, and cytotoxicity. All these sources excite the cells of the auditory pathway, producing reactive oxygen species that leads to the death of sensory neural hair cells. This causes involuntary movement of the tectorial membrane, resulting in the buzzing noise characteristic of tinnitus. Autophagy is an evolutionarily conserved catabolic scavenging activity inside a cell that has evolved as a cell survival mechanism. Numerous studies have demonstrated the effect of autophagy against oxidative stress, which is one of the reasons for cell excitation. This review compiles several studies that highlight the role of autophagy in protecting sensory neural hair cells against oxidative stress-induced damage. This could facilitate the development of strategies to treat tinnitus by activating autophagy.

The majority of cardiac myxoma occur sporadically as isolated lesions in the left atrium of middle-aged women. However, a familial form and a syndrome form of this lesion have also been identified. The syndrome myxoma can present itself with pigmented skin lesions and peripheral or endocrine neoplasms. The familial and syndrome forms of cardiac myxomas can usually be distinguished from the sporadic form by their occurrences at younger ages, their unusual locations, the multicentricity of the lesions, and the presence of rare pathological conditions. In addition, a higher rate of recurrent lesions is usually associated with the familial and syndrome forms of this disease. We present a case of complex cardiac myxoma with pigmented skin lesions and breast myxoma and report it with a review of literature.
Breast ; Female ; Heart Atria ; Humans ; Myxoma* ; Nipples* ; Skin