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Ponti G, Rodriguez-Gomez A, Farinetti A, Marraudino M, Filice F, Foglio B, Sciacca G, Panzica GC, Gotti S. Early postnatal genistein administration permanently affects nitrergic and vasopressinergic systems in a sex-specific way. Neuroscience 2017; 346:203-215. [PMID: 28131623 DOI: 10.1016/j.neuroscience.2017.01.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 01/09/2017] [Accepted: 01/12/2017] [Indexed: 12/01/2022]
Abstract
Genistein (GEN) is a natural xenoestrogen (isoflavonoid) that may interfere with the development of estrogen-sensitive neural circuits. Due to the large and increasing use of soy-based formulas for babies (characterized by a high content of GEN), there are some concerns that this could result in an impairment of some estrogen-sensitive neural circuits and behaviors. In a previous study, we demonstrated that its oral administration to female mice during late pregnancy and early lactation induced a significant decrease of nitric oxide synthase-positive cells in the amygdala of their male offspring. In the present study, we have used a different experimental protocol mimicking, in mice, the direct precocious exposure to GEN. Mice pups of both sexes were fed either with oil, estradiol or GEN from birth to postnatal day 8. Nitric oxide synthase and vasopressin neural systems were analyzed in adult mice. Interestingly, we observed that GEN effect was time specific (when compared to our previous study), sex specific, and not always comparable to the effects of estradiol. This last observation suggests that GEN may act through different intracellular pathways. Present results indicate that the effect of natural xenoestrogens on the development of the brain may be highly variable: a plethora of neuronal circuits may be affected depending on sex, time of exposure, intracellular pathway involved, and target cells. This raises concern on the possible long-term effects of the use of soy-based formulas for babies, which may be currently underestimated.
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Affiliation(s)
- G Ponti
- Department of Veterinary Sciences, Largo Braccini 2, 10095 Grugliasco (TO), University of Torino, Torino, Italy; Neuroscience Institute Cavalieri Ottolenghi (NICO), Regione Gonzole, 10 - 10043 Orbassano (TO), Torino, Italy.
| | - A Rodriguez-Gomez
- Neuroscience Institute Cavalieri Ottolenghi (NICO), Regione Gonzole, 10 - 10043 Orbassano (TO), Torino, Italy; Laboratory of Neuroendocrinology, Department of Neuroscience, Via Cherasco 15, 10126-University of Torino, Torino, Italy
| | - A Farinetti
- Neuroscience Institute Cavalieri Ottolenghi (NICO), Regione Gonzole, 10 - 10043 Orbassano (TO), Torino, Italy; Laboratory of Neuroendocrinology, Department of Neuroscience, Via Cherasco 15, 10126-University of Torino, Torino, Italy
| | - M Marraudino
- Neuroscience Institute Cavalieri Ottolenghi (NICO), Regione Gonzole, 10 - 10043 Orbassano (TO), Torino, Italy; Laboratory of Neuroendocrinology, Department of Neuroscience, Via Cherasco 15, 10126-University of Torino, Torino, Italy
| | - F Filice
- Laboratory of Neuroendocrinology, Department of Neuroscience, Via Cherasco 15, 10126-University of Torino, Torino, Italy
| | - B Foglio
- Neuroscience Institute Cavalieri Ottolenghi (NICO), Regione Gonzole, 10 - 10043 Orbassano (TO), Torino, Italy; Laboratory of Neuroendocrinology, Department of Neuroscience, Via Cherasco 15, 10126-University of Torino, Torino, Italy
| | - G Sciacca
- Neuroscience Institute Cavalieri Ottolenghi (NICO), Regione Gonzole, 10 - 10043 Orbassano (TO), Torino, Italy; Laboratory of Neuroendocrinology, Department of Neuroscience, Via Cherasco 15, 10126-University of Torino, Torino, Italy
| | - G C Panzica
- Neuroscience Institute Cavalieri Ottolenghi (NICO), Regione Gonzole, 10 - 10043 Orbassano (TO), Torino, Italy; Laboratory of Neuroendocrinology, Department of Neuroscience, Via Cherasco 15, 10126-University of Torino, Torino, Italy
| | - S Gotti
- Neuroscience Institute Cavalieri Ottolenghi (NICO), Regione Gonzole, 10 - 10043 Orbassano (TO), Torino, Italy; Laboratory of Neuroendocrinology, Department of Neuroscience, Via Cherasco 15, 10126-University of Torino, Torino, Italy
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Moe Y, Kyi-Tha-Thu C, Tanaka T, Ito H, Yahashi S, Matsuda KI, Kawata M, Katsuura G, Iwashige F, Sakata I, Akune A, Inui A, Sakai T, Ogawa S, Tsukahara S. A Sexually Dimorphic Area of the Dorsal Hypothalamus in Mice and Common Marmosets. Endocrinology 2016; 157:4817-4828. [PMID: 27726418 DOI: 10.1210/en.2016-1428] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
We found a novel sexually dimorphic area (SDA) in the dorsal hypothalamus (DH) of mice. The SDA-DH was sandwiched between 2 known male-biased sexually dimorphic nuclei, the principal nucleus of the bed nucleus of the stria terminalis and the calbindin-sexually dimorphic nucleus, and exhibited a female-biased sex difference in neuronal cell density. The density of neurons in the SDA-DH was increased in male mice by orchidectomy on the day of birth and decreased in female mice by treatment with testosterone, dihydrotestosterone, or estradiol within 5 days after birth. These findings indicate that the SDA-DH is defeminized under the influence of testicular testosterone, which acts via both directly by binding to the androgen receptor, and indirectly by binding to the estrogen receptor after aromatization. We measured the activity of SDA-DH neurons with c-Fos, a neuronal activity marker, in female mice during maternal and sexual behaviors. The number of c-Fos-expressing neurons in the SDA-DH of female mice was negatively correlated with maternal behavior performance. However, the number of c-Fos-expressing neurons did not change during female sexual behavior. These findings suggest that the SDA-DH contains a neuronal cell population, the activity of which decreases in females exhibiting higher performance of maternal behavior, but it may contribute less to female sexual behavior. Additionally, we examined the brain of common marmosets and found an area that appears to be homologous with the mouse SDA-DH. The sexually dimorphic structure identified in this study is not specific to mice and may be found in other species.
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Affiliation(s)
- Yadanar Moe
- Division of Life Science (Y.M., C.K.-T.-T., T.T., H.I., I.S., T.S., S.T.), Graduate School of Science and Engineering, Saitama University, Sakura-ku, Saitama 338-8570, Japan; Drug Safety Research Laboratories (S.Y., F.I., A.A.), Shin Nippon Biomedical Laboratories, Ltd, Kagoshima 891-1394, Japan; Department of Anatomy and Neurobiology (K.-I.M., M.K.), Kyoto Prefectural University of Medicine, Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; Department of Psychosomatic Internal Medicine (G.K., A.I.), Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan; and Laboratory of Behavioral Neuroendocrinology (S.O.), University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Chaw Kyi-Tha-Thu
- Division of Life Science (Y.M., C.K.-T.-T., T.T., H.I., I.S., T.S., S.T.), Graduate School of Science and Engineering, Saitama University, Sakura-ku, Saitama 338-8570, Japan; Drug Safety Research Laboratories (S.Y., F.I., A.A.), Shin Nippon Biomedical Laboratories, Ltd, Kagoshima 891-1394, Japan; Department of Anatomy and Neurobiology (K.-I.M., M.K.), Kyoto Prefectural University of Medicine, Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; Department of Psychosomatic Internal Medicine (G.K., A.I.), Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan; and Laboratory of Behavioral Neuroendocrinology (S.O.), University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Tomoko Tanaka
- Division of Life Science (Y.M., C.K.-T.-T., T.T., H.I., I.S., T.S., S.T.), Graduate School of Science and Engineering, Saitama University, Sakura-ku, Saitama 338-8570, Japan; Drug Safety Research Laboratories (S.Y., F.I., A.A.), Shin Nippon Biomedical Laboratories, Ltd, Kagoshima 891-1394, Japan; Department of Anatomy and Neurobiology (K.-I.M., M.K.), Kyoto Prefectural University of Medicine, Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; Department of Psychosomatic Internal Medicine (G.K., A.I.), Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan; and Laboratory of Behavioral Neuroendocrinology (S.O.), University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Hiroto Ito
- Division of Life Science (Y.M., C.K.-T.-T., T.T., H.I., I.S., T.S., S.T.), Graduate School of Science and Engineering, Saitama University, Sakura-ku, Saitama 338-8570, Japan; Drug Safety Research Laboratories (S.Y., F.I., A.A.), Shin Nippon Biomedical Laboratories, Ltd, Kagoshima 891-1394, Japan; Department of Anatomy and Neurobiology (K.-I.M., M.K.), Kyoto Prefectural University of Medicine, Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; Department of Psychosomatic Internal Medicine (G.K., A.I.), Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan; and Laboratory of Behavioral Neuroendocrinology (S.O.), University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Satowa Yahashi
- Division of Life Science (Y.M., C.K.-T.-T., T.T., H.I., I.S., T.S., S.T.), Graduate School of Science and Engineering, Saitama University, Sakura-ku, Saitama 338-8570, Japan; Drug Safety Research Laboratories (S.Y., F.I., A.A.), Shin Nippon Biomedical Laboratories, Ltd, Kagoshima 891-1394, Japan; Department of Anatomy and Neurobiology (K.-I.M., M.K.), Kyoto Prefectural University of Medicine, Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; Department of Psychosomatic Internal Medicine (G.K., A.I.), Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan; and Laboratory of Behavioral Neuroendocrinology (S.O.), University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Ken-Ichi Matsuda
- Division of Life Science (Y.M., C.K.-T.-T., T.T., H.I., I.S., T.S., S.T.), Graduate School of Science and Engineering, Saitama University, Sakura-ku, Saitama 338-8570, Japan; Drug Safety Research Laboratories (S.Y., F.I., A.A.), Shin Nippon Biomedical Laboratories, Ltd, Kagoshima 891-1394, Japan; Department of Anatomy and Neurobiology (K.-I.M., M.K.), Kyoto Prefectural University of Medicine, Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; Department of Psychosomatic Internal Medicine (G.K., A.I.), Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan; and Laboratory of Behavioral Neuroendocrinology (S.O.), University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Mitsuhiro Kawata
- Division of Life Science (Y.M., C.K.-T.-T., T.T., H.I., I.S., T.S., S.T.), Graduate School of Science and Engineering, Saitama University, Sakura-ku, Saitama 338-8570, Japan; Drug Safety Research Laboratories (S.Y., F.I., A.A.), Shin Nippon Biomedical Laboratories, Ltd, Kagoshima 891-1394, Japan; Department of Anatomy and Neurobiology (K.-I.M., M.K.), Kyoto Prefectural University of Medicine, Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; Department of Psychosomatic Internal Medicine (G.K., A.I.), Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan; and Laboratory of Behavioral Neuroendocrinology (S.O.), University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Goro Katsuura
- Division of Life Science (Y.M., C.K.-T.-T., T.T., H.I., I.S., T.S., S.T.), Graduate School of Science and Engineering, Saitama University, Sakura-ku, Saitama 338-8570, Japan; Drug Safety Research Laboratories (S.Y., F.I., A.A.), Shin Nippon Biomedical Laboratories, Ltd, Kagoshima 891-1394, Japan; Department of Anatomy and Neurobiology (K.-I.M., M.K.), Kyoto Prefectural University of Medicine, Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; Department of Psychosomatic Internal Medicine (G.K., A.I.), Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan; and Laboratory of Behavioral Neuroendocrinology (S.O.), University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Fumihiro Iwashige
- Division of Life Science (Y.M., C.K.-T.-T., T.T., H.I., I.S., T.S., S.T.), Graduate School of Science and Engineering, Saitama University, Sakura-ku, Saitama 338-8570, Japan; Drug Safety Research Laboratories (S.Y., F.I., A.A.), Shin Nippon Biomedical Laboratories, Ltd, Kagoshima 891-1394, Japan; Department of Anatomy and Neurobiology (K.-I.M., M.K.), Kyoto Prefectural University of Medicine, Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; Department of Psychosomatic Internal Medicine (G.K., A.I.), Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan; and Laboratory of Behavioral Neuroendocrinology (S.O.), University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Ichiro Sakata
- Division of Life Science (Y.M., C.K.-T.-T., T.T., H.I., I.S., T.S., S.T.), Graduate School of Science and Engineering, Saitama University, Sakura-ku, Saitama 338-8570, Japan; Drug Safety Research Laboratories (S.Y., F.I., A.A.), Shin Nippon Biomedical Laboratories, Ltd, Kagoshima 891-1394, Japan; Department of Anatomy and Neurobiology (K.-I.M., M.K.), Kyoto Prefectural University of Medicine, Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; Department of Psychosomatic Internal Medicine (G.K., A.I.), Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan; and Laboratory of Behavioral Neuroendocrinology (S.O.), University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Atsushi Akune
- Division of Life Science (Y.M., C.K.-T.-T., T.T., H.I., I.S., T.S., S.T.), Graduate School of Science and Engineering, Saitama University, Sakura-ku, Saitama 338-8570, Japan; Drug Safety Research Laboratories (S.Y., F.I., A.A.), Shin Nippon Biomedical Laboratories, Ltd, Kagoshima 891-1394, Japan; Department of Anatomy and Neurobiology (K.-I.M., M.K.), Kyoto Prefectural University of Medicine, Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; Department of Psychosomatic Internal Medicine (G.K., A.I.), Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan; and Laboratory of Behavioral Neuroendocrinology (S.O.), University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Akio Inui
- Division of Life Science (Y.M., C.K.-T.-T., T.T., H.I., I.S., T.S., S.T.), Graduate School of Science and Engineering, Saitama University, Sakura-ku, Saitama 338-8570, Japan; Drug Safety Research Laboratories (S.Y., F.I., A.A.), Shin Nippon Biomedical Laboratories, Ltd, Kagoshima 891-1394, Japan; Department of Anatomy and Neurobiology (K.-I.M., M.K.), Kyoto Prefectural University of Medicine, Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; Department of Psychosomatic Internal Medicine (G.K., A.I.), Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan; and Laboratory of Behavioral Neuroendocrinology (S.O.), University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Takafumi Sakai
- Division of Life Science (Y.M., C.K.-T.-T., T.T., H.I., I.S., T.S., S.T.), Graduate School of Science and Engineering, Saitama University, Sakura-ku, Saitama 338-8570, Japan; Drug Safety Research Laboratories (S.Y., F.I., A.A.), Shin Nippon Biomedical Laboratories, Ltd, Kagoshima 891-1394, Japan; Department of Anatomy and Neurobiology (K.-I.M., M.K.), Kyoto Prefectural University of Medicine, Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; Department of Psychosomatic Internal Medicine (G.K., A.I.), Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan; and Laboratory of Behavioral Neuroendocrinology (S.O.), University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Sonoko Ogawa
- Division of Life Science (Y.M., C.K.-T.-T., T.T., H.I., I.S., T.S., S.T.), Graduate School of Science and Engineering, Saitama University, Sakura-ku, Saitama 338-8570, Japan; Drug Safety Research Laboratories (S.Y., F.I., A.A.), Shin Nippon Biomedical Laboratories, Ltd, Kagoshima 891-1394, Japan; Department of Anatomy and Neurobiology (K.-I.M., M.K.), Kyoto Prefectural University of Medicine, Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; Department of Psychosomatic Internal Medicine (G.K., A.I.), Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan; and Laboratory of Behavioral Neuroendocrinology (S.O.), University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Shinji Tsukahara
- Division of Life Science (Y.M., C.K.-T.-T., T.T., H.I., I.S., T.S., S.T.), Graduate School of Science and Engineering, Saitama University, Sakura-ku, Saitama 338-8570, Japan; Drug Safety Research Laboratories (S.Y., F.I., A.A.), Shin Nippon Biomedical Laboratories, Ltd, Kagoshima 891-1394, Japan; Department of Anatomy and Neurobiology (K.-I.M., M.K.), Kyoto Prefectural University of Medicine, Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; Department of Psychosomatic Internal Medicine (G.K., A.I.), Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan; and Laboratory of Behavioral Neuroendocrinology (S.O.), University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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