Research Topics
| C LeranthSummaryAffiliation: Yale University Country: USA Publications
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Publications
Gonadal hormones are responsible for maintaining the integrity of spine synapses in the CA1 hippocampal subfield of female nonhuman primatesCsaba Leranth
Department of Obstetrics and Gynecology, Yale University, School of Medicine, New Haven, Connecticut 06520 8063, USA
J Comp Neurol 447:34-42. 2002..Because the hippocampus is involved in specific mnemonic functions, this observation highlights the importance of hormone replacement therapy in postmenopausal conditions...
Extrinsic afferent systems to the dentate gyrusCsaba Leranth
Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, 333 Cedar Street, FMB 312, New Haven, CT 06520, USA
Prog Brain Res 163:63-84. 2007..This strong influence is due to the fact that the majority of the extrinsic afferents terminate on a relatively small, but specific, populations of neurons that are able to control large areas of the hippocampal formation...
Gonadal hormones affect spine synaptic density in the CA1 hippocampal subfield of male ratsCsaba Leranth
Department of Obstetrics and Gynecology, Yale University School of Medicine, New Haven, Connecticut 06520 8063, USA
J Neurosci 23:1588-92. 2003....
Bisphenol A prevents the synaptogenic response to testosterone in the brain of adult male ratsCsaba Leranth
Department of Ob Gyn, Yale University School of Medicine, 333 Cedar Street, FMB 312, New Haven, Connecticut 06520, USA
Endocrinology 149:988-94. 2008....
Estrogen is essential for maintaining nigrostriatal dopamine neurons in primates: implications for Parkinson's disease and memoryC Leranth
Departments of Obstetrics and Gynecology, Psychiatry, Pharmacology, and Neurosurgery and Section of Neurobiology, Yale University, School of Medicine, New Haven, Connecticut 06520 8063, USA
J Neurosci 20:8604-9. 2000....
Hormonal regulation of hippocampal spine synapse density involves subcortical mediationC Leranth
Department of Obstetrics and Gynecology, Yale University, School of Medicine, 333 Cedar Street, FMB 328, New Haven, CT 06520 8063, USA
Neuroscience 101:349-56. 2000....
Efferent synaptic connections of dopaminergic neurons grafted into the caudate nucleus of experimentally induced parkinsonian monkeys are different from those of control animalsC Leranth
Department of Obstetrics and Gynecology, Yale University, School of Medicine, New Haven, CT 06520 8063, USA
Exp Brain Res 123:323-33. 1998....
Estrogen receptor-alpha in the raphe serotonergic and supramammillary area calretinin-containing neurons of the female ratC Leranth
Department of Obstetrics and Gynecology and Section of Neurobiology, Yale University School of Medicine, 333 Cedar Street, FMB 328, New Haven CT 06520 8063, USA
Exp Brain Res 128:417-20. 1999..These observations indicate that circulating gonadal hormones can affect hippocampal electric activity indirectly, via those subcortical structures that are involved in theta rhythm regulation...
Androgens increase spine synapse density in the CA1 hippocampal subfield of ovariectomized female ratsCsaba Leranth
Department of Obstetrics and Gynecology, Yale University School of Medicine, New Haven, Connecticut 06520 8063, USA
J Neurosci 24:495-9. 2004..Induction of hippocampal synapse formation by androgen is not mediated entirely via intracerebral estrogen biosynthesis, however, because aromatase-independent mechanisms also significantly affect CA1 spine synapse density...
Bisphenol A prevents the synaptogenic response to estradiol in hippocampus and prefrontal cortex of ovariectomized nonhuman primatesCsaba Leranth
Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA
Proc Natl Acad Sci U S A 105:14187-91. 2008..This study is the first to demonstrate an adverse effect of BPA on the brain in a nonhuman primate model and further amplifies concerns about the widespread use of BPA in medical equipment, and in food preparation and storage...
Embryonic substantia nigra grafts in the mesencephalon send neurites to the host striatum in non-human primate after overexpression of GDNFD E Redmond
Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut 06520, USA
J Comp Neurol 515:31-40. 2009....
Effects of testosterone on hippocampal CA1 spine synaptic density in the male rat are inhibited by fimbria/fornix transectionE G Kovacs
Department of Obstetrics and Gynecology, Yale University School of Medicine, 333 Cedar Street, FMB 328, New Haven, CT 06520, USA
Neuroscience 122:807-10. 2003..These data suggest that the effects of T on spine synapse density in the CA1 region of the male rat hippocampus are partially, but not completely, dependent on afferent sub-cortical input...
Androgen effects on hippocampal CA1 spine synapse numbers are retained in Tfm male rats with defective androgen receptorsNeil J MacLusky
Departments of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, Connecticut 06520, USA
Endocrinology 147:2392-8. 2006..These data are consistent with previous results suggesting that androgen effects on hippocampal spine synapses may involve novel androgen response mechanisms...
Nicotine recruits a local glutamatergic circuit to excite septohippocampal GABAergic neuronsMin Wu
Department of Psychiatry, Yale University School of Medicine and the Ribicoff Research Facilities, Connecticut Mental Health Center, New Haven, CT 06508, USA
Eur J Neurosci 18:1155-68. 2003..The discovery of a local glutamatergic circuit within the septum may provide another avenue for restoring septohippocampal GABAergic functions in neurodegenerative disorders associated with a loss of septohippocampal cholinergic neurons...
AAV2-mediated gene transfer of GDNF to the striatum of MPTP monkeys enhances the survival and outgrowth of co-implanted fetal dopamine neuronsJ D Elsworth
Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
Exp Neurol 211:252-8. 2008..Thus, the addition of GDNF gene therapy to neural transplantation may be a useful strategy to improve treatment for Parkinson's disease...
Dehydroepiandrosterone increases hippocampal spine synapse density in ovariectomized female ratsTibor Hajszan
Department of Obstetrics and Gynecology, Yale University School of Medicine, New Haven, Connecticut 06520, USA
Endocrinology 145:1042-5. 2004..The blockade of the synaptic response to DHEA by letrozole, despite the lack of a uterotrophic response to this steroid, suggests that the hippocampal response to DHEA may be mediated via aromatization in the brain...
Androgen modulation of hippocampal synaptic plasticityN J MacLusky
Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA
Neuroscience 138:957-65. 2006..The unusual specificity of these responses raises the possibility that effects of androgens on the brain may be mediated via different mechanisms than the masculinizing actions of these steroids in non-neural androgen target organs...
Median raphe serotonergic innervation of medial septum/diagonal band of broca (MSDB) parvalbumin-containing neurons: possible involvement of the MSDB in the desynchronization of the hippocampal EEGC Leranth
Department of Obstetrics and Gynecology and Section of Neurobiology, Yale University, School of Medicine, New Haven, Connecticut 06520
J Comp Neurol 410:586-98. 1999..MSDB parvalbumin-containing GABAergic neurons specifically innervate hippocampal basket and chandelier cells. Thus, 5-HT-elicited activation of MSDB GABAergic neurons will result in a powerful inhibition of these GABA neurons...
Effects of androgens and estradiol on spine synapse formation in the prefrontal cortex of normal and testicular feminization mutant male ratsTibor Hajszan
Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, Connecticut 06520, USA
Endocrinology 148:1963-7. 2007..However, because this effect of 5alpha-dihydrotestosterone is not completely lost in Tfm rats, additional mechanisms may also be involved...
Opioids suppress IPSCs in neurons of the rat medial septum/diagonal band of Broca: involvement of mu-opioid receptors and septohippocampal GABAergic neuronsM Alreja
Department of Psychiatry, Yale University School of Medicine and the Ribicoff Research Facilities, Connecticut Mental Health Center, New Haven, CT 06508, USA
J Neurosci 20:1179-89. 2000..Thus, opioids, via mu receptors, inhibit a subpopulation of MSDB GABAergic neurons that not only make local connections with both cholinergic and noncholinergic-type MSDB neurons, but also project to the hippocampus...
Gonadal hormones act extrinsic to the hippocampus to influence the density of hippocampal astroglial processesT T Lam
Department of Obstetrics and Gynecology, Yale University, School of Medicine, New Haven, CT 06520 8063, USA
Neuroscience 116:491-8. 2003..Furthermore, estradiol can have an indirect negative effect on hippocampal astrocytes, causing a reduction in the density of their processes...
Effects of dehydroepiandrosterone and flutamide on hippocampal CA1 spine synapse density in male and female rats: implications for the role of androgens in maintenance of hippocampal structureNeil J MacLusky
Department of Obstetrics and Gynecology, Yale University School of Medicine, 333 Cedar Street, FMB 313, New Haven, Connecticut 06520-8063, USA
Endocrinology 145:4154-61. 2004..They also suggest that conventional measures of androgen agonist or antagonist activity, exemplified by ventral prostate growth, may not be indicative of effects on hippocampal CA1 synaptogenesis...
Immunocytochemical evidence for direct synaptic connections between corticotrophin-releasing factor (CRF) and gonadotrophin-releasing hormone (GnRH)-containing neurons in the preoptic area of the ratN J MacLusky
Department of Obstetrics and Gynecology, Yale University Medical School, New Haven, CT 06510
Brain Res 439:391-5. 1988..These results suggest that the inhibitory effects of stress-induced CRF release on reproductive function may involve a direct CRF input to the GnRH-producing cells...
Behavioral training interferes with the ability of gonadal hormones to increase CA1 spine synapse density in ovariectomized female ratsKaryn M Frick
Department of Psychology, Yale University, New Haven, CT 06520, USA
Eur J Neurosci 19:3026-32. 2004..These data indicate that 1-day water maze testing can eliminate the hormone-induced increases in CA1 spine synapse density typically observed in behaviorally naïve females...
Low CA1 spine synapse density is further reduced by castration in male non-human primatesCsaba Leranth
Department of Obstetrics and Gynecology, Yale University School of Medicine, New Haven, CT 06520, USA
Cereb Cortex 14:503-10. 2004....
Role of the medial septum diagonal band of Broca cholinergic neurons in oestrogen-induced spine synapse formation on hippocampal CA1 pyramidal cells of female ratsThien Tri Lam
Department of Obstetrics, Yale University, School of Medicine, 333 Cedar Street, FMB 312, New Haven, CT 06520 8063, USA
Eur J Neurosci 17:1997-2005. 2003..Thus, this observation indicates that septo-hippocampal cholinergic neurons are involved in mediating oestrogen effects to the hippocampus. The relevance of this observation to mnemonic functions and Alzheimer's disease is discussed...
Neurochemical characterization of AMPA receptor-containing neurons in the mediolateral septal area of the ratF Varoqueaux
Department of Obstetrics and Gynecology, Yale University, School of Medicine, New Haven, CT 06520 8063, USA
Exp Brain Res 114:454-60. 1997..This study indicates the existence of multiple populations of AMPA receptor- and calbindin-containing neurons in the lateral septal area...
Heterogeneity in the neuropeptide Y-containing neurons of the rat arcuate nucleus: GABAergic and non-GABAergic subpopulationsT L Horvath
Department of Obstetrics and Gynecology, Yale University School of Medicine, New Haven, CT 06520, USA
Brain Res 756:283-6. 1997..This heterogeneity in the neuropeptide Y-producing perikarya of the hypothalamus may help explain adverse neuroendocrine and behavioral effects of arcuate nucleus neuropeptide Y...
Muscarinic tone sustains impulse flow in the septohippocampal GABA but not cholinergic pathway: implications for learning and memoryM Alreja
Departments of Psychiatry, Neurobiology, and Obstetrics and Gynecology, Yale University School of Medicine New Haven, Connecticut 06508, USA
J Neurosci 20:8103-10. 2000....
Prenatal exposure to cocaine is associated with increased number of spine synapses in rat prelimbic cortexBret A Morrow
Department of Psychiatry, Neuropsychopharmacology Research Unit, Yale University School of Medicine, New Haven, CT 06511, USA
Synapse 61:862-5. 2007..The increase in number of excitatory synaptic inputs associated with prenatal cocaine exposure could contribute to the increased neuronal activation and cognitive deficits noted...
Estrogen-induced hypothalamic synaptic plasticity and pituitary sensitization in the control of the estrogen-induced gonadotrophin surgeFrederick Naftolin
Reproductive Neuroscience Unit, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, Connecticut, USA
Reprod Sci 14:101-16. 2007..This enhanced understanding of the mechanics of gonadotrophin control clarifies elements of the involved feedback loops and opens the way to a better understanding of the neurobiology of reproduction...
Sex steroids and the dentate gyrusTibor Hajszan
Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA
Prog Brain Res 163:399-415. 2007....
Role of androgens and the androgen receptor in remodeling of spine synapses in limbic brain areasTibor Hajszan
Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA
Horm Behav 53:638-46. 2008....
Remodeling of hippocampal spine synapses in the rat learned helplessness model of depressionTibor Hajszan
Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, Connecticut 06520, USA
Biol Psychiatry 65:392-400. 2009....
Effects of estradiol on learned helplessness and associated remodeling of hippocampal spine synapses in female ratsTibor Hajszan
Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, Connecticut 06520, USA
Biol Psychiatry 67:168-74. 2010....
Coenzyme Q induces nigral mitochondrial uncoupling and prevents dopamine cell loss in a primate model of Parkinson's diseaseTamas L Horvath
Department of Obstetrics and Gynecology, Yale University School of Medicine, 333 Cedar Street, New Haven, Connecticut 06520, USA
Endocrinology 144:2757-60. 2003..Here we report that short-term oral administration of coenzyme Q induces nigral mitochondrial uncoupling and prevents dopamine cell loss after 1-methyl-4-phenyl-1,2,5,6 tetrahydropyridine administration in monkeys...
Anorectic estrogen mimics leptin's effect on the rewiring of melanocortin cells and Stat3 signaling in obese animalsQian Gao
Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, Connecticut 06520, USA
Nat Med 13:89-94. 2007....
Short-term treatment with the antidepressant fluoxetine triggers pyramidal dendritic spine synapse formation in rat hippocampusTibor Hajszan
Department of Obstetrics, Gynaecology and Reproductive Sciences, Yale University School of Medicine, 333 Cedar Street, FMB 312, New Haven, CT 06520-8063, USA
Eur J Neurosci 21:1299-303. 2005....
Hypocretin increases impulse flow in the septohippocampal GABAergic pathway: implications for arousal via a mechanism of hippocampal disinhibitionMin Wu
Department of Psychiatry, Yale University School of Medicine and the Ribicoff Research Facilities, Connecticut Mental Health Center, New Haven, Connecticut 06508, USA
J Neurosci 22:7754-65. 2002....
Median raphe mediates estrogenic effects to the hippocampus in female ratsJanine Prange-Kiel
Department of Obstetrics and Gynecology, Yale University, School of Medicine, 333 Cedar Street, FMB 312, New Haven, CT 06520, USA
Eur J Neurosci 19:309-17. 2004..5 and 38.8% decrease, respectively). These observations suggest a major role of the MR in mediating oestrogenic effects on the hippocampus and an involvement of the serotonergic system...
Group I metabotropic glutamate receptor activation produces a direct excitation of identified septohippocampal cholinergic neuronsMin Wu
Dept of Psychiatry, CMHC 335A, Yale University School of Medicine, 34 Park Street, New Haven, CT 06508
J Neurophysiol 92:1216-25. 2004....
Intrinsic vesicular glutamate transporter 2-immunoreactive input to septohippocampal parvalbumin-containing neurons: novel glutamatergic local circuit cellsTibor Hajszan
Department of Obstetrics and Gynecology, Yale University School of Medicine, New Haven, Connecticut 06520 8063, USA
Hippocampus 14:499-509. 2004..Thus, the heavy glutamatergic innervation of these septohippocampal GABA cells establishes the morphological basis for the powerful glutamatergic influence upon theta rhythm and hippocampus-associated memory processes...
Distribution and origin of vesicular glutamate transporter 2-immunoreactive fibers in the rat hippocampusKatalin Halasy
Department of Obstetrics and Gynecology, Yale University School of Medicine, New Haven, Connecticut 06520 8063, USA
Hippocampus 14:908-18. 2004....
Subchronic phencyclidine treatment decreases the number of dendritic spine synapses in the rat prefrontal cortexTibor Hajszan
Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, Connecticut 06520-8066, USA
Biol Psychiatry 60:639-44. 2006..This phenomenon may contribute to phencyclidine-induced cognitive dysfunction and decreased prefrontal cellular activity observed in this model...
Direct visual and circadian pathways target neuroendocrine cells in primatesAlfonso Abizaid
Department of Obstetrics and Gynecology, Yale University School of Medicine, New Haven, CT 06510, USA
Eur J Neurosci 20:2767-76. 2004....
Comparative transduction efficiency of AAV vector serotypes 1-6 in the substantia nigra and striatum of the primate brainEleni A Markakis
Section of Comparative Medicine, Yale University School of Medicine, New Haven, Connecticut 06511, USA
Mol Ther 18:588-93. 2010..These results suggest that AAV5 is a more effective vector than AAV2 at delivering potentially therapeutic transgenes to the nigrostriatal system of the primate brain...
The 17alpha and 17beta isomers of estradiol both induce rapid spine synapse formation in the CA1 hippocampal subfield of ovariectomized female ratsNeil J MacLusky
Center for Neural Recovery and Rehabilitation Research, Helen Hayes Hospital, West Haverstraw, New York, New York 10993, USA
Endocrinology 146:287-93. 2005....
The environmental estrogen bisphenol a inhibits estradiol-induced hippocampal synaptogenesisNeil J MacLusky
Center for Neural Recovery and Rehabilitation Research, Helen Hayes Hospital, New York, New York 10993 1195, USA
Environ Health Perspect 113:675-9. 2005..It may also exacerbate the impairment of hippocampal function observed during normal aging, as endogenous estrogen production declines...
Nucleus reuniens of the midline thalamus: link between the medial prefrontal cortex and the hippocampusRobert P Vertes
Center for Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL 33431, United States
Brain Res Bull 71:601-9. 2007..We discuss the possibility that nucleus reuniens gates the flow of information between the medial prefrontal cortex and hippocampus dependent upon attentive/arousal states of the organism...
Research Grants
- Negative Effects of Bisphenol A on the Monkey CNSCsaba Leranth; Fiscal Year: 2007..Therefore, we propose to reveal the effect of BPA on estrogen-induced spine synapse formation in the brain of non-human primates, which will provide more relevance to human health. ..
- Subcortical Estrogen Effect on The HippocampusCsaba Leranth; Fiscal Year: 2005..cholinergic and GABAergic septo-hippocampal neurons involved in mediating estrogenic effect to the hippocampus? and (d) Do SUM neurons mediate estrogenic effect to the hippocampus directly or indirectly, via the MSDB? ..
- Estrogenic Effect on Hippocampal Theta Rhythm and MemoryCsaba Leranth; Fiscal Year: 2004....
- Bisphenol A Effect on Primate BrainCsaba Leranth; Fiscal Year: 2010....
