Biomedical subjects

A Llorens

Publications and source records attributed to A Llorens.

21 records · Page 2Linked to original sources

PubMed1982

[Symmetry of the bone lesions of periodontitis in the golden hamster].

In 8 month old hamsters, a spontaneous bone resorption occurs on both lingual and palatal aspects of the alveolar process, whereas, the buccal aspects are much less severely affected. A periodontitis lasting more than 6 months markedly increased this process in animals of the same age. In both maxillae, similar levels of bone resorption occurred on both left and right quadrants. A parallel degree of involvement was noted in the upper and lower jaws. However, the progress of the lesions seemed less rapid in the maxilla compared to the mandible. For experimental periods less than 6 months, less sever periodontitis could be recorded if macroscopical studies were conducted in the maxillae rather than the mandibles.

Alveolar Process↗

PubMed1981

[Synthesis of cyclic AMP from renal cortex in vitro (author's transl)].

The parathyroid-hormone sensitive adenylate-cyclase from renal rat cortex has been studied. Mg2+ acts as stimulator at a specific locus increasing the apparent Vmax slightly from 50 to 60 nmol of cAMP per gram of protein if the Mg2+ concentration increases from 3.25 to 16 mM, and decreases the apparent KM from 2 to 0.4 mM. Fluoride decreases the apparent KM from 5 mM in NaF concentrations of 0 to 2 mM in NaF concentrations 2 mM. Magnesium ion also decreases the apparent Ka for NaF.

Adenylyl Cyclases↗

PubMed1976

[Attempt at "conservative medical treatment" in the decompensations of chronic respiratory insufficiencies].

Study of 37 acute respiratory decompensations occurring in 28 patients over a 6 years period (1969-1975). They were given a systematic "conservative treatment" associating ventilation with a mask or a mouthpiece, physiotherapy and various drugs, intubation being used only in case of failure of this treatment. On the whole 22 compensations were cured by this treatment alone (59%) and the 15 cases that were not were given classical reanimation. Six deaths were reported (16%). Definitely better than those of DUBOIS and PRIGNOT, these results were perhaps due to differences of recruitment, but also to the systematic use of a mechanical ventilatory assistance instead of a continuous oxygen therapy. With attentive care, this category of patients could be given an assisted external but early ventilation, thus sparing them a tracheal intubation more than once out of twice.

Blood Gas Analysis↗