Neonatal Separation
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Brief daily postpartum separations from the litter alter dam response to psychostimulants and to stress
Neonatal handling induces several behavioral and neurochemical alterations in pups, including decreased responses to stress and reduced fear in new environments. However, there are few reports in the literature concerning the behavioral effects of this neonatal intervention on the dams during the postpartum period. Therefore, the aim of the current study was
Braz J Med Biol Res. Publicado em: 24/05/2013
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2. Efeitos a longo prazo de diferentes separações dos filhotes no período neonatal sobre as genitoras
Esse estudo foi realizado para verificar se a exposição a separações repetidas (por diferentes intervalos de tempo) de mães dos seus filhotes no período neonatal poderiam ser classificadas como indutoras de um estado do tipo deprimido em genitoras. Sessenta ratas Wistar prenhes foram divididas em 3 grupos: controle, separação por 10 minutos e separa�
Publicado em: 2011
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3. Interventions in the neonatal environment in rats and their relationship to behavior in adulthood and maternal behavior
The objective of this study was to assess the role of environmental/nest components and maternal behavior after several neonatal interventions on subsequent behavioral responses. Male Wistar rats were subjected to different neonatal interventions and were later evaluated for innate fear-like behavior in adulthood. The experimental groups included nonhandled
Psychology & Neuroscience. Publicado em: 2010-06
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4. Biochemical, molecular and behavioral alterations induced by neonatal hypoxia in mice. / Alterações bioquímicas, moleculares e comportamentais induzidas por hipóxia neonatal em camundongos
Introduction: Neonatal hypoxia-ischemia is one of the most significant factors that can lead to death in newborns. It has been linked with pathology in adult life, such as schizophrenia. Objectives: The aim of this work was to investigate long-term effects of neonatal hypoxia on body weight, behavior, antioxidant defense status, factors related to homocystei
Publicado em: 2008
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5. Relationship between the maternal diabetes and the sexual development of the male rat offspring / Relação entre o diabete materno e o desenvolvimento sexual da prole masculina de ratos
Diabetes melllitus is a group of metabolic disorders of multiple etiology, characterized by defects in the secretion and/or action of insulin. The causes of the disease can be genetic and/or environmental. Diabetes is one of the most common metabolic complications during pregnancy and is associated with an increased risk of maternal and neonatal morbidities.
Publicado em: 2007
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6. Desenvolvimento reprodutivo de ratos machos expostos ao fenvalerato in utero e lactação / Reproductive development of male rats exposed to fenvalerate in utero and lactation
Fenvalerate is a synthetic pyrethroid insecticide used in agriculture, cattle raising and in the control of domestic insects, and its reproductive effects are little-known.Some studies already have proposed that fenvalerate is an endocrine disruptor, acting as an environmentalestrogen. Studies done with rats exposed to some pyrethroids showed reduction of sp
Publicado em: 2005
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7. Delayed umbilical cord separation in alloimmune neutropenia.
Delayed umbilical cord separation in association with neonatal alloimmune neutropenia is reported. Delayed umbilical cord separation has been described in association with defects in neutrophil function. The present case indicates that deficiency in neutrophil number should also be considered as a cause of delayed cord separation.
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8. Repeated neonatal handling with maternal separation permanently alters hippocampal GABAA receptors and behavioral stress responses
Increasing evidence suggests that postnatal events, such as handling or maternal separation, can produce long-term changes in brain function. These are often expressed as changes in the profile of endocrine or behavioral responses to stress. Changes in γ-aminobutyric acid type A receptors (GABARs), which mediate the majority of fast synaptic inhibition in a
National Academy of Sciences.
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9. Neonatal Maternal Separation Disrupts Regulation of Sleep and Breathing in Adult Male Rats
Associated Professional Sleep Societies.
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10. Neonatal treatment of rats with the neuroactive steroid tetrahydrodeoxycorticosterone (THDOC) abolishes the behavioral and neuroendocrine consequences of adverse early life events.
Stressful experience during early brain development has been shown to produce profound alterations in several mechanisms of adaptation, while several signs of behavioral and neuroendocrine impairment resulting from neonatal exposure to stress resemble symptoms of dysregulation associated with major depression. This study demonstrates that when applied concom
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11. Glycine receptor heterogeneity in rat spinal cord during postnatal development.
Two different isoforms of the inhibitory glycine receptor were identified during postnatal development of rat spinal cord. A neonatal form characterized by low strychnine binding affinity, altered antigenicity, and a ligand binding subunit differing in mol. wt (49 kd) from that of the adult receptor (48 kd) predominates at birth (70% of the total receptor pr
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12. Thymic Dendritic Cells Are Primary Targets for the Oncogenic Virus SL3-3
The murine retrovirus SL3-3 causes malignant transformation of thymocytes and thymic lymphoma in mice of the AKR and NFS strains when they are inoculated neonatally. The objective of the present study was to identify the primary target cells for the virus in the thymuses of these mice. Immunohistochemical studies of the thymus after neonatal inoculation of t
American Society for Microbiology.