| Title |
Global Histone H4 Acetylation in the Olfactory Bulb of Lactating Rats with Different Patterns of Maternal Behavior
|
|---|---|
| Published in |
Cellular and Molecular Neurobiology, November 2015
|
| DOI | 10.1007/s10571-015-0306-3 |
| Pubmed ID | |
| Authors |
Ana Carolina de Moura, Ivy Reichert Vital da Silva, Gustavo Reinaldo, Caroline Dani, Viviane Rostirola Elsner, Márcia Giovenardi |
| Abstract |
In rats, variations in the levels of neuromodulatory molecules and in the expression of their receptors are observed during pregnancy and postpartum. These changes may contribute to the development and management of maternal behavior. The frequency of licking the pups is used to evaluate maternal care, having mothers with low licking (LL) and high licking (HL) frequencies. Previously, we found that HL had increased levels of transcriptional expression of the receptors for serotonin (HTR1a, HTR1b), estrogen (Erα), dopamine (D1a), and prolactin (Prlr) than LL in the olfactory bulb (OB); however, the molecular mechanisms behind this phenomenon are unknown. Since evidences pointed out that epigenetic marks, which may alter gene expression, are modulated by environmental factors such as exercise, diet, maternal care, and xenobiotic exposure, our objective was to verify the acetylation levels of histone-H4 in the OB of LL and HL rats. Maternal behavior was studied for the first 7 postpartum days. LL (n = 4) and HL (n = 5) mothers were selected according to the behavior of licking their pups. Acetylation levels of histone-H4 were determined using the Global Histone-H4 Acetylation Assay Kit and expressed as ng/mg protein (mean ± SD). Analysis revealed that HL (278.36 ± 68.95) had increased H4 acetylation levels than LL (183.24 ± 73.05; p = 0.045). The enhanced expression of the previously studied receptors in the OB could be related, at least in part, to the hyperacetylation status of histone-H4 here observed. Afterward, the modulation of histone acetylation levels could exert a pivotal role through molecular mechanisms involved in the different patterns of maternal behavior. |
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| France | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 72 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Postgraduate | 24 | 33% |
| Student > Bachelor | 11 | 15% |
| Student > Ph. D. Student | 8 | 11% |
| Student > Master | 7 | 10% |
| Researcher | 4 | 6% |
| Other | 6 | 8% |
| Unknown | 12 | 17% |
| Readers by discipline | Count | As % |
|---|---|---|
| Biochemistry, Genetics and Molecular Biology | 25 | 35% |
| Agricultural and Biological Sciences | 16 | 22% |
| Medicine and Dentistry | 6 | 8% |
| Psychology | 4 | 6% |
| Neuroscience | 4 | 6% |
| Other | 3 | 4% |
| Unknown | 14 | 19% |
Attention Score in Context
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Outputs of similar age from Cellular and Molecular Neurobiology
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