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Biomedical subjects

J I Levy

Publications and source records attributed to J I Levy.

28 records · Page 2Linked to original sources
PubMed1975

Solitary myeloma. A study of 10 black patients during an 8-year period.

Solitary myeloma of bone occurred in 10 Black patients during the 8-year period from 1967 to 1974. In 4 patients, the solitary myeloma involved the bones of the paranasal sinuses, in 3 patients the pelvis, and in 3 others the manubrium sterni. An IgG monoclonal gammopathy was present in the serum of 4 patients and Bence-Joanes proteinuria was found in 1 patient. Radiation therapy was the treatment of choice and the recommended tumour dosage is 4000-5000 rads. Serial measurements of serum and urine protein electrophoresis and immuno-electrophoresis were most helpful in determining when patients had achieved a complete remission. In 3 patients, 1 of whom died, the myeloma disseminated in periods varying from 26 months to 7 years. Nine patients are alive, of whom 7 are in complete remission, and 5 have lived for more than 5 years since the initial diagnosis of solitary myeloma.

Adult↗
PubMed1975

Haemangiopericytoma of the thigh.

Haemangiopericytoma is a very vascular tumour which is slow growing and often painless. It is important to realise the malignant potential of these tumours and to treat them by wide surgical excision. Angiography was helpful in this case because it gave warning of probable malignancy.

Femoral Artery↗
PubMedDate not supplied

Variabilities in aerosolizing activities and airborne fungal concentrations in a bakery.

Concentrations of airborne culturable fungi were measured in the kitchen of a bakery in Boston, Mass., to evaluate variabilities associated with common worker activities, outdoor aerosol distributions, and season. Activities were categorized as early morning preparation, cornmeal sifting and tossing, flour dumping and mixing, sweeping, and low activity. Sets of measurements were taken over 1 day in spring and 1 day in summer. Fungal concentrations were measured using a one-stage culture plate impactor, and bulk samples were taken from suspected fungal reservoirs within the bakery and subsequently cultured. Compared with the low activity category, elevated levels of total culturable fungi were found during all other activities, with the amount of increase closely related to individual worker activity as well as outdoor concentrations and initial bakery conditions. In the spring, Penicillium was the dominant genus showing activity-related elevations in concentrations, while Cladosporium was the dominant genus during the summer. Clearly, due to variabilities in worker activities and ambient fungal concentrations, a standardized sampling protocol involving a large sample size over multiple days is needed to estimate accurately exposure to either total airborne fungi or specific fungal taxa.

Aerosols↗
PubMedDate not supplied

A longitudinal analysis of the efficacy of environmental interventions on asthma-related quality of life and symptoms among children in urban public housing.

In an environmental intervention study in public housing, we examined monthly Juniper Paediatric Asthma Quality of Life (QOL) Questionnaires for 51 children. Longitudinal analysis and spline models were used to identify time periods with significant improvements in QOL to inform judgments about causality. We found significant improvements in QOL, with moderate improvements before environmental interventions, increased rates of improvement immediately after, and reduced rates more than 5 months post-intervention. Effect modification analyses identified high-risk subpopulations and emphasized the importance of environmental, social, and economic conditions. Our results demonstrate the value of longitudinal techniques in evaluating the benefits of environmental interventions for asthma.

Adolescent↗