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Article
LACK OF RESPONSE OF BRAIN AND ADRENAL BLOOD FLOW TO HYPOXEMIA IN THE FETAL LLAMA
The fetus of sheep a species that evolved in lowlands, responds to hypoxemia (H) by maintaining cardiac output and umbilical-blood flow, increasing heart, brain and adrenal blood flow and decreasing it to othe...
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Article
ONTOGENY OF THE RED CELL CHARACTERISTICS IN THE LLAMA FETUS
Although the species has evolved at high altitudes, adult llamas have low hematocrits (small red cells plus a high number of erythrocytes). Hemaglobin concentrations, are similar to species that have evolved i...
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Article
MATERNAL ADMINISTRATION OF THYROTROPIN-RELEASING HORMONE (TRH) AND BETAMETHASONE (B) INCREASES LUNG COMPLIANCE IN PREMATURE LAMBS
Administration of TRH and B to mothers decreases the incidence of bronchopulmonary dysplasia in premature babies. Fetal administration of TRH and Cortisol at 0.85 of gestation increases lung compliance in prem...
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Article
NEUROPEPTIDH Y (NPY) PARTICIPATES IN THE CARDIOVASCU- LAR REGULATION IN THE NEWBORN LAMB
NPY, a 36 aminoacid peptide, is one of the most active vasocon-trictor agents in the systemic and pulmonary circulation. NPY plasma concentration in adults increases during stress. Human newborns have high pla...