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R Angel

Publications and source records attributed to R Angel.

32 records · Page 2Linked to original sources
PubMed1989

Mind, body, and culture: somatization among Hispanics.

In this analysis we employ the recently released Hispanic Health and Nutrition Examination Survey (Hispanic HANES) to investigate the issue of somatization among Mexican Americans and Puerto Ricans. In order to do so, we use the physician's assessment as a control, and examine the association between depressive affect and self-perceptions of health for individuals with similar evaluated health levels. The data reveal rather dramatic discrepancies between individuals' assessments of their own health and physicians' evaluations. In addition, the data reveal that, net of the physician's evaluation, individuals' assessments of their overall health status are significantly influenced by their affective states. The data also reveal a strong effect of language of interview on self-assessments of health and depressive affect.

Adult↗
PubMed1987

The impact of culture on the cognitive structure of illness.

This paper presents a theoretical framework for understanding the impact of culture on the processes of symptom recognition, labeling, and help-seeking and consequently on large-scale epidemiological studies involving different ethnic groups. We begin with the assumption that the subjective experience of illness is culture-bound and that the cognitive and linguistic categories of illness characteristic of any culture constrain the interpretative and behavioral options available to individuals in response to symptoms. We hypothesize the existence of learned cognitive structures, through which bodily experiences are filtered, that influence the interpretation of deviations from culturally-defined physical and mental health norms. Certain contradictory findings concerning the self-reported health of Mexican Americans are discussed in order to illustrate the impact of culture on perceived health status.

Cultural Characteristics↗
PubMed1980

Ketoconazole in paracoccidioidomycosis: efficacy of prolonged oral therapy.

Ketoconazole, a new oral imidazole derivative, was employed for the treatment of five patients with paracoccidioidomycosis. The response was excellent, with objective clinical improvement and healing of both mucocutaneous and pulmonary lesions. Mycological and serological tests, as well as delayed hypersensitivity, were assessed and found to correlate with clinical improvement. Therapy was conducted for 12 months with a dose of 200 mg day in 2 patients; in the remainder the dose was reduced (100 mg day) after the first 6 months and maintained as such for an equal period. No side-effects or toxicity were noted despite prolonged treatment. The advantages of the new therapeutic approach are discussed.

Administration, Oral↗
PubMed1979

[Thyroid hemiagenesis (single thyroid lobe). 8 cases (author's transl)].

Thyroid agenesis would appear to be a rare abnormality (50 cases, including 8 personal). In fact, it is a simple anatomical curiosity which may be found in the presence of any type of thyroid condition (simple goitre: 4 cases, thyrotoxicosis: 2 cases, cold nodule: 2 cases, as far as our own patients were concerned). Our 8 patients were all women, hemiagenesis being more commonly discovered in the female sex. In 2 patients the right lobe was absent, and the left in the other 6. In general, the abnormality affects the left lobe three times more commonly than the right. The differential diagnosis essentially lies with autonomic thyroid nodules, which are much more common, and isotope scanning provides the answer.

Adenoma↗
PubMedDate not supplied

Ketoconazole: a new drug for the treatment of paracoccidioidomycosis.

Ketoconazole was administered orally to 13 patients with paracoccidioidomycosis. Therapy consisted of 200 mg per day for periods ranging from three to 12 months. All patients improved markedly, with healing of pulmonary, mucosal, and skin lesions. Patients exhibiting the latter two manifestations began to improve two weeks after therapy, and healing occurred within three months. Pulmonary lesions regressed at a slower pace and healed by fibrosis. Mycologic tests have corroborated the clinical improvement. Adverse effects were not observed; monitoring of renal, hematologic, and hepatic functions did not reveal any abnormalities. Five patients completed a year of therapy and were free of symptoms when therapy was discontinued. Of these patients, four were followed for several months and had no relapses; the fifth patient developed tuberculosis and died. The results indicate that ketoconazole is a safe and effective drug for therapy in the treatment of paracoccidioidomycosis.

Adult↗
PubMedDate not supplied

Influence of phytase addition to poultry diets on phosphorus forms and solubility in litters and amended soils.

Diet modification to decrease phosphorus (P) concentration in animal feeds and manures can reduce surpluses of manure P in areas of intensive animal production. We generated turkey and broiler litters from two and three flock trials, respectively, using diets that ranged from "high" to "low" in non-phytate phosphorus (NPP) and some of which contained feed additives such as phytase. Phosphorus forms in selected litters were analyzed by sequential chemical fractionation and solution (31)P nuclear magnetic resonance (NMR) spectroscopy. Selected litters were also incubated with four contrasting soils. Reducing dietary NPP and using phytase decreased total P in litters by up to 38%. Water-soluble phosphorus (WSP) in litters was decreased 21 to 44% by feeding NPP closer to animal requirement, but was not affected by phytase addition. Solution (31)P NMR spectroscopy showed that feeding NPP closer to requirement decreased orthophosphate in litters by an average of 38% and that adding phytase to feed did not increase the concentration of orthophosphate in litters. Phytase also decreased phytate P in litters by 25 to 38%, demonstrating that it increases phytate P hydrolysis. Incorporation of litters with soils at the same total P rate increased WSP in soils relative to the control; this increase was correlated to soluble P added with litters at 5 d, but not by 29 d. Changes in soil Mehlich-3 phosphorus (M3-P) were related to total P added in litter, rather than soluble P. We conclude that feeding NPP closer to requirement and using feed additives such as phytase decrease total P concentrations in litters, while having little effect on P solubility in litters and amended soils.

6-Phytase↗