ABSTRACT
The study of phenotypic variation within species in response to different environments is a central issue in evolutionary and ecological physiology. Particularly, ambient temperature is one of the most important factors modulating interactions between animals and their environment. Phyllotis xanthopygus, a small Andean rodent, exhibits intraspecific differences along an altitudinal gradient in traits relevant to energy balance that persist after acclimation to common experimental temperatures. Therefore, we aim to explore geographic variations in energetic traits of P. xanthopygus and to assess the contribution of phenotypic plasticity to population differences. We compared metabolic rate and thermal conductance in response to different acclimation temperatures in animals collected at distinct altitudes (F0 generation) and in their offspring, born and raised under common-garden conditions (F1 generation). We found intraspecific differences in resting metabolic rate (RMR) of animals collected at different altitudes that were no longer evident in the F1 generation. Furthermore, although both generations showed the same pattern of RMR flexibility in response to acclimation temperature, its magnitude was lower for the F1 individuals. This suggests that developmental conditions affect the short-term acclimation capacity of this trait during adulthood. On the other hand, thermal conductance (C) showed irreversible plasticity, as animals raised in the laboratory at stable warm conditions had a relatively higher C than the animals from the field, showing no adjustments to thermal acclimation during adulthood in either group. In sum, our results support the hypothesis that the developmental environment shapes energetic traits, emphasizing the relevance of incorporating ontogeny in physiological studies.
Subject(s)
Acclimatization , Rodentia , Acclimatization/physiology , Adaptation, Physiological , Animals , Basal Metabolism/physiology , Energy MetabolismABSTRACT
El embarazo abdominal es poco frecuente y está asociado con alta mortalidad materna y fetal. Es raro que llegue al término y mucho menos obtener un recién nacido en buenas condiciones. El presente artículo trata de una paciente de 30 años de edad atendida en el Hospital Ginecoobstérico Ramón González Coro, con diagnóstico al ingreso de embarazo de 38,5 semanas y placenta previa oclusiva, se diagnosticó en el transoperatorio embarazo abdominal a término, con producto de la gestación en buenas condiciones. Se revisa el tema(AU)
Abdominal pregnancy is infrequent and is associated with a high mortality rate for mother and for fetus. It is no easy to arrive to term, and much less to obtain a newborn in good conditions. Present paper is on the case of a patient aged 30 seen in Ramón González Coro Gynecology and Obstetrics Hospital diagnosed at admission with a 38,5 weeks pregnancy and occlusive previa placenta, in transoperative period we diagnosed term abdominal pregnancy with a fetus in good conditions. We made a review on this matter(AU)
Subject(s)
Humans , Female , Pregnancy , Pregnancy, Abdominal/diagnosis , Pregnancy, Abdominal/surgeryABSTRACT
El embarazo abdominal es poco frecuente y está asociado con alta mortalidad materna y fetal. Es raro que llegue al término y mucho menos obtener un recién nacido en buenas condiciones. El presente artículo trata de una paciente de 30 años de edad atendida en el Hospital Ginecoobstérico Ramón González Coro, con diagnóstico al ingreso de embarazo de 38,5 semanas y placenta previa oclusiva, se diagnosticó en el transoperatorio embarazo abdominal a término, con producto de la gestación en buenas condiciones. Se revisa el tema.
Abdominal pregnancy is infrequent and is associated with a high mortality rate for mother and for fetus. It is no easy to arrive to term, and much less to obtain a newborn in good conditions. Present paper is on the case of a patient aged 30 seen in "Ramón González Coro" Gynecology and Obstetrics Hospital diagnosed at admission with a 38,5 weeks pregnancy and occlusive previa placenta, in transoperative period we diagnosed term abdominal pregnancy with a fetus in good conditions. We made a review on this matter.
ABSTRACT
The pregnancy supposes a deep change in the human physiology. Such changes can entail the appearance of diseases that secondarily affect the liver, like the hipermesis gravidica, HELLP syndrome, the cholestasis of pregnancy and the acute hepatic steatosis of the pregnancy. Within the acquired diseases, viral hepatitis are the first cause of jaundice in the pregnant. Hepatitis E can display a particularly aggressive course and also the Herpes simple virus. In relation to hepatitis C during the pregnancy, their presence does not affect the pregnancy, childbirth or perinatal health of the mother and Newborn. The main concern of the heath workers is to diminish the risk of transmission of the disease from the mother to newborn.