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Biomedical subjects

T A Helmrath

Publications and source records attributed to T A Helmrath.

9 recordsLinked to original sources
PubMed1978

Effects of asphyxia on cardiac output and organ blood flow in the newborn piglet.

Experiments were performed on newborn piglets 6--96 hr of age. When the respiratory dead space was increased arterial pO2 decreased and pCO2 increased. During this time cardiac output was unchanged (Fig. 1), while heart rate, respiratory rate, and blood pressure increased (Figs. 2 and 3). After 90 min of asphyxia blood flow to the stomach and small and large intestines decreased. Changes in blood flow were associated with dilatation of segments of the small and large intestine with scattered areas of hemorrhage. Pathologic examination revealed scattered areas of mucosal necrosis (Fig. 6).

Animals↗
PubMed1978

Death of an infant: parental grieving and the failure of social support.

Parents undergo intense grief reactions following the death of their newborn infant, but frequently fail to receive emotional support from their family and circle of friends. Because this response from family and friends differs from what occurs with the death of an older child or adult, this study was undertaken to explore the events and personal interactions that helped or hindered the parents following their infant's death. Alternations in familial and extrafamilial relationships are described in seven families with infant deaths, and useful support mechanisms are proposed.

Adaptation, Psychological↗
PubMed1975

Glucagon stimulation of hepatic gluconeogenesis in neonatal pigs.

The effect of an infusion of glucagon on gluconeogenesis was studied in 5-day-old piglets. Glucagon stimulated hepatic new glucose formation from lactate, but did not significantly change blood glucose or plasma free fatty acid levels. The data suggest that glucagon enhances substrate flow in the gluconeogenic pathway in neonatal animals.

Animals↗