Biomedical subjects
Publications and source records attributed to L M Solomon.
A 20-month-old Kuwaiti girl had manifestations of lipoid proteinosis, a rare autosomal recessive disorder seen more commonly in Caucasians. This condition is diagnosed based on clinical, histopathologic, and ultrastructural criteria. Its biochemical and genetic aspects are still poorly understood.
Superficial granulomatous pyoderma, recently described as a variant of pyoderma gangrenosum, would be better termed pathergic granulomatous cutaneous ulceration as the seven previously described cases, as well as our own two cases, have significant dermal involvement histologically and heal with scarring. In contrast to pyoderma gangrenosum, lesions of superficial granulomatous pyoderma respond to less toxic anti-inflammatory agents.
The hair of patients with three ectodermal dysplasias--ectrodactyly ectodermal dysplasia clefting syndrome (EEC); orofacial-digital syndrome (OFD) type I; and anhidrotic ectodermal dysplasia syndrome (AED)--were studied by scanning electron microscopy. While no pathognomonic abnormalities were noted for each condition, hair shaft structural defects were evident in all patients studied. The EEC clefting syndrome and OFD I shared the most deforming defects, while AED had fewer.
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Because bradykinin constitutes a possible candidate for mediation of topical 8-methoxypsoralen-UVA-(PUVA)-induced erythema, aprotinin (Trasylol), inhibitor of kallikrein and interrupter of the cascade leading to kinin production was assessed in guinea pigs. Response was assessed at 24, 48, and 72 hr after topical PUVA and there was no significant difference between normal saline and aprotinin by intradermal or intraperitoneal routes of administration. The results of this study indicate that intradermal and intraperiotoneal aprotinin, in the dose and method tested, is not capable of significantly decreasing erythema induced by topical PUVA in guinea pigs.
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A 5-year-old boy was found to have severe rickets in association with hyperpigmented, linear, verrucous, epidermal tumors, typical of the epidermal nevus syndrome. Normocalcemia (9.6 mg/dl), hypophosphatemia (2.0 mg/dl), elevated serum alkaline phosphatase concentration (313 IU), decreased renal tubular reabsorption of phosphorus (35%), radiologic evidence of rickets, and lack of response to usual therapeutic doses of vitamin D suggested hypophosphatemic vitamin D-resistant rickets. Therapy with vitamin D in doses to 750,000 IU and oral phosphate, 2.0 gm/day, failed to induce healing of the rickets. A subtotal parathyroidectomy performed when the patient was 9 years old was also without effect. When he was 12 years old several fibroangiomas on the face and left lower limb were excised. Within three months all biochemical abnormalities resolved and radiologic evidence of healing was observed. A portion of excised tissue was homogenized and injection of the supernate into a 6-week-old puppy induced excessive phosphaturia. The data suggest that the rickets was induced by a phosphaturic substance extractable from the tumors.
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Blood and brain levels of gamma benzene hexachloride had been measured following topical application in guinea pigs. Levels increased with number of application, and the concentration in brain was at least 10 times greater than in blood.
A family with the tricho-rhino-phalangeal syndrome was studied. One child, the proband, manifested the complete triad of the syndrome with fine, sparse, slow-growing hair, pear-shaped nose, and abnormal fingers. Cone-shaped epiphyses were observed radiographically in the child, in both parents, and in two of three remaining children.
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