Biomedical subjects

J M Grande

Publications and source records attributed to J M Grande.

3 recordsLinked to original sources

PubMed2002

Coprophagy: an unusual source of essential carotenoids.

The rare Egyptian vulture (Neophron percnopterus) stands out among the Old World vultures (Family Accipitridae) because of its brightly ornamented head, which is coloured yellow by carotenoid pigments, and its practice of feeding on faeces. Here we show that Egyptian vultures obtain these pigments from the excrement of ungulates. To our knowledge, this is the first demonstration that faeces can be used as a source of carotenoids by a vertebrate.

Animal Nutritional Physiological Phenomena↗

PubMed1993

[Exercise-induced atrioventricular block].

Exercise-induced atrioventricular block in patients with normal atrioventricular conduction at rest is uncommon. Electrophysiologic studies have documented block distal to the atrioventricular node in these patients. Implantation of a permanent pacemaker is recommended because of a high incidence of subsequent symptomatic block. We report three symptomatic patients with exercise-induced atrioventricular block. Two patients showed a bundle branch block in the baseline electrocardiogram, suggesting a distal location of the block. In the remainder, with a normal QRS, the electrophysiologic study revealed AV block within the His bundle in response to atrial pacing.

Aged↗

PubMed1990

[Anemia in the pregnancies followed-up at a health center].

We retrospectively evaluated the 134 pregnancies which were controlled in our health center in a 4-year period, so as to evaluate anemia in pregnancy and the factors influencing its development. In the study sample, 18.65% of the women had anemia. The age did not have any influence on the hemoglobin and packed red cell volume at the beginning of pregnancy, but it had at the end (p less than 0.01). He types of anemia were classified, and the normocytic-normochromic was the most common (68%). The investigations carried out for the etiological characterization of the anemias, the treatments and their results were evaluated. A lack of homogeneity in treatments, a small efficacy (32%), and a lack of specific investigations for the etiological evaluation were found (24%). Guidelines for the investigation and therapy of anemia during pregnancy are suggested.

Adult↗