Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 11
    Electronic Resource
    Electronic Resource
    Anatomical relationships of serotoninergic and noradrenalinergic projections with the GnRH system in septum and hypothalamus (1982)
    Springer
    Experimental brain research 46 (1982), S. 331-338 
    Details
    ISSN: 1432-1106
    Keywords: GnRH ; Serotonin ; Dopamine-β-hydroxylase ; Immunohistochemistry ; Rat brain
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Immunahistochemical double staining for gonadotropin releasing hormone (GnRH) and serotonin or dopamine-β-hydroxylase reveals close appositions of fibers which contain serotonin or norepinephrine to GnRH producing neurons in the septo-preoptic region. In the organum vasculosum of the lamina terminalis and in the median eminence extensive anatomical overlap exists in the distribution of GnRH and serotoninergic fibers but little of GnRH and noradrenalinergic fibers. It is proposed that serotonin plays a major role in the regulation of GnRH secretion via contacts in all of the regions studied and that the influence of norepinephrine on GnRH-secretion in the median eminence is exerted mainly via involvement of dopaminergic tuberoinfundibular neurons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00238628
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 12
    Electronic Resource
    Electronic Resource
    Anatomical relationships of dopaminergic and GABAergic systems with the GnRH-systems in the septo-hypothalamic area (1983)
    Springer
    Experimental brain research 50 (1983), S. 91-99 
    Details
    ISSN: 1432-1106
    Keywords: GnRH ; Tyrosine hydroxylase ; Glutamic acid decarboxylase ; Immunohistochemistry ; Rat ; Brain
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Immunohistochemical double staining for gonadotropin releasing hormone (GnRH) and tyrosine hydroxylase (TH) or glutamic acid decarboxylase (GAD) reveals in the septo-preopticdiagonal band complex of the rat brain close spatial associations between GnRH-immunoreactive perikarya and TH and GAD immunoreactive fibers. In the organum vasculosum laminae terminalis, no close spatial relationships could be observed between TH-or GAD-positive fibers and the GnRH-containing system. In contrast, in the median eminence substantial overlap exists in the distribution of GnRH with TH and GAD containing nerve fibers. This overlap is most intense for TH throughout the lateral palisade zone, while for GAD it is more restricted to the outermost portion of the external palisade zone. The results suggest that dopamine and GABA influence GnRH secretion via axosomatic contacts in the septo-preoptic-diagonal band complex, as well as via axo-axonic interactions in the median eminence, while no such interactions seem to exist in the organum vasculosum laminae terminalis. Since dopaminergic cell bodies in the ventral hypothalamus are closely apposed by GnRH and GAD containing fibers, the existence of feedback circuits among GnRH, dopamine and GABA systems is proposed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00238235
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 13
    Electronic Resource
    Electronic Resource
    Distribution of atrial natriuretic factor in fetal rat atria and ventricles (1987)
    Springer
    Cell & tissue research 248 (1987), S. 479-481 
    Details
    ISSN: 1432-0878
    Keywords: Atrial natriuretic factor ; Fetal rat ; Atrium ; Ventricle
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary An immunohistochemical study of rat fetal hearts at 20 days of gestation revealed the presence of immunoreactive atrial natriuretic factor (ANF) in cardiocytes of the left and right atria as well as in certain cells is the left and right ventricles. In the atria, cells of the adluminal pectinate muscles appear more densely labeled than the more peripheral mural cells. In the ventricles, immunoreactive cells were found only in adluminal cardiocytes of the presumptive trabeculae and papillary muscles. The results indicate that ANF is synthesized in the perinatal heart, and that the presence of this hormone in the ventricular cardiocytes may be of only temporary nature during certain stages of pre- and postnatal development.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00218216
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 14
    Electronic Resource
    Electronic Resource
    Ontogeny of gonadotropin releasing hormone and gonadotropin immunoreactivity in brain and pituitary of normal and estrogen-treated guppies, Poecilia reticulata Peters (1987)
    Springer
    Cell & tissue research 249 (1987), S. 227-234 
    Details
    ISSN: 1432-0878
    Keywords: Gonadotropin releasing hormone ; Gonadotropin ; Immunohistochemistry ; Guppy (Poecilia reticulata)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Gonadotropin releasing hormone (GnRH) and gonadotropic hormone (GTH) were identified by immunohistochemistry in the brains and pituitaries of neonate, juvenile and adult guppies. GTH was present in some cells of the pars intermedia (pi) and proximal pars distalis (ppd) of all animals. GnRH was found in the perikarya of the nucleus olfactoretinalis. In the pituitaries of juvenile 30-day-old guppies, GnRH-immunoreactive cells existed in a “juvenile pattern”, whereas in adult animals GnRH was recognized in only a few cells. GnRH-immunoreactive fibers were seen in the pituitaries of animals that were 30 days or older. In adult guppies, the ventral and lateral ppd (the gonadotropic region) contained a dense network of GnRH-immunoreactive fibers. Pituitary cells staining for either GnRH or GTH were located in different places. After immunohistochemical double staining of adult pituitaries, none of the GnRH-immunoreactive cells were LH-immunoreactive, although both cell types were often found in close proximity. After 20 days or more of ethinylestradiol treatment, less immunoreactive GnRH was detected in the pituitary cells of juvenile guppies, and fewer animals exhibited the “juvenile pattern” of GnRH-immunoreactive pituitary cells, when compared with untreated controls. The results indicate that GnRH-immunoreactive pituitary cells in the guppy are distinct from gonadotropes and that these cells are involved in regulatory processes along the juvenile brain-pituitary-gonad axis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00215438
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 15
    Electronic Resource
    Electronic Resource
    Centrifugal innervation of the retina by luteinizing hormone releasing hormone (LHRH)-immunoreactive telencephalic neurons in teleostean fishes (1982)
    Springer
    Cell & tissue research 222 (1982), S. 313-323 
    Details
    ISSN: 1432-0878
    Keywords: Retina ; Telencephalic innervation ; Nucleus olfactoretinalis ; Teleosts ; LHRH immunohistochemistry ; HRP transport
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary In cichlid, poecilid and centrarchid fishes luteinizing hormone releasing hormone (LHRH)-immunoreactive neurons are found in a cell group (nucleus olfactoretinalis) located at the transition between the ventral telencephalon and olfactory bulb. Processes of these neurons project to the contralateral retina, traveling along the border between the internal plexiform and internal nuclear layer, and probably terminating on amacrine or bipolar cells. Horseradish peroxidase (HRP) injected into the eye or optic nerve is transported retrogradely in the optic nerve to the contralateral nucleus olfactoretinalis where neuronal perikarya are labeled. Labeled processes leave this nucleus in a rostral direction and terminate in the olfactory bulb. The nucleus olfactoretinalis is present only in fishes, such as cichlids, poecilids and centrarchids, in which the olfactory bulbs border directly the telencephalic hemispheres. In cyprinid, silurid and notopterid fishes, in which the olfactory bulbs lie beneath the olfactory epithelium and are connected to the telencephalon via olfactory stalks, the nucleus olfactoretinalis or a comparable arrangement of LHRH-immunoreactive neurons is lacking. After retrograde transport of HRP in the optic nerve of these fishes no labeling of neurons in the telencephalon occurred. It is proposed that the nucleus olfactoretinalis anatomically and functionally interconnects and integrates parts of the olfactory and optic systems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00213215
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...