Library

feed icon rss

Your email was sent successfully. Check your inbox.

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

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Anaesthesia 25 (1970), S. 0 
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Anaesthesia 24 (1969), S. 0 
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Anaesthesia 24 (1969), S. 0 
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Medicine 34 (1983), S. 283-294 
    ISSN: 0066-4219
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Medicine
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neuroendocrinology 2 (1990), S. 0 
    ISSN: 1365-2826
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: There is increasing evidence for a centrally mediated inhibitory effect of the amino-acid neurotransmitter y-aminobutyric acid (GABA) on the hypothalamo-pituitary-adrenal axis. In the present study, the direct effect of GABA in modulating the release of the 41-residue corticotrophin-releasing factor (CRF-41), the major CRF identified so far, was investigated in acute hypothalamic explants by utilizing previously validated incubation and assay techniques. While GABA (10-7’to 10-5 M) had no effect on basal CRF-41 release (P 〉 0.05), it significantly suppressed K - (28 mM)-stimulated release in a dose-dependent manner (P 〈 0.01). A similar inhibitory effect was observed with the GABA agonist muscimol (10-7 to 10-5 M). Noradrenaline (10-6 M) -induced CRF-41 release was also significantly inhibited by GABA 10-6 M. The inhibitory effect of GABA on K+-stimulated CRF-41 secretion was completely. reversed by the GABA antagonists bicuculline and picrotoxin (10-6 to 10-5 M) in a dose-dependent fashion. Both bicuculline and picrotoxin stimulated basal and K+ (28 mM)-stimulated CRF-41 release, indicating the presence of tonic inhibition by endogenous GABA in the basal state. Finally, GABA 10-5 M was able to significantly inhibit the stimulated release of CRF-41 from the isolated median eminence.In summary, the present data provide strong evidence that GABA-induced inhibition of the hypothalamo-pituitary-adrenal axis is mediated, at least in part, through an inhibitory action on CRF-41 secretion. It is likely that these GABA receptors are located directly on CRF-41 neurons, probably on nerve terminals in the median eminence.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neuroendocrinology 1 (1989), S. 0 
    ISSN: 1365-2826
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: While extensive evidence suggests that adrenoceptors play an important role in the control of growth hormone in the rat, there are few studies involving the direct measurement of growth hormone-releasing hormone (GHRH). We have therefore developed a radioimmunoassay for rat GHRH, and used it to investigate the modulation of GHRH release by noradrenaline from incubated rat hypothalamus in vitro. The GHRH radioimmunoassay had no significant cross-reactivity with other hypothalamic or GHRH-related peptides, and was sensitive to 4 pg/tube; intra- and interassay coefficients of variation were 6% and 12% respectively. Single incubated rat hypothalami produced a stable and readily measurable output of GHRH in successive 20 min incubations after an initial 60 min preincubation; the release of GHRH was increased in the presence of 56 mM KCI, but did not respond to KCI-depolarization when calcium was excluded from the medium. Stimulated GHRH release was identical to synthetic rat GHRH(1–43) on high-performance liquid chromatography and Sephadex G-75 chromatography.Noradrenaline stimulated GHRH secretion in a dose-dependent manner in the concentration range 10−10— 10−6M, with a plateau in response at 10−7M. Stimulation with noradrenaline 10−7M was blocked by idazoxan 10−5M and attenuated by thymoxamine 10−5M, but was unaffected by timolol 10−5M. Both the α2-adrenoceptor agonist guanfacine, and the α1-adrenoceptor agonist methoxamine, specifically stimulated GHRH secretion.It is concluded that noradrenaline stimulates the release of GHRH at both α1 and α2-adrenoceptors.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 283 (1980), S. 295-297 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Although bioassays and opiate receptor assays have the advantage of measuring biological and related activities they are unable to discriminate fully between related opiate peptides. To date all reported RIAs for Met-enkephalin cross-react with Leu-enkephalin and the larger endorphins. Thus to ...
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 214 (1967), S. 17-19 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The critical threshold or frequency at which an interrupted or “fluttering” sound appears to be continuous, an aspect of human perception analogous to the visual critical fusion threshold, has not been studied intensively. What follows is an analysis of some of the physiological factors ...
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 297 (1977), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 10
    ISSN: 1432-1262
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé La différence observée dans l'incidence de fistule anale idiopathique chez l'homme comparée à celle de la femme ne peut être expliquée par la seule hypothèse d'une origine crypto-glandulaire. Un taux plus élevé est observé chez les nouveau-nés de sexe masculin et également dans la population canine. Des investigations hormonales chez des sujets porteurs d'une hidrosadénite suppurative suggèrent un rôle éventuel des androgènes dans cette pathogénèse. Afin d'investiguer la possibilité d'une action identique dans les fistules anales, nous avons comparé le taux d'hormones sexuelles circulantes chez 15 hommes et 12 femmes présentant des fistules anales avec un nombre identique de sujets témoins appareillés quant à l'âge et au sexe. Il n'y a pas de différence dans les taux sanguins d'aucune des hormones mesurées entre les patients et les contrôles sains. Il n'y a pas d'évidence d'une androgénisation accrue des patientes femmes. Les femmes avec des fistules ont un taux plus élevés d'oestradiol circulant (253 vs 163 pmol/l, médiane, P=0.03) et un taux abaissé de progestérone (1,5 vs 3.0 nmol/l, médiane, P=0.039) que les femmes témoins. Cette étude doit être poursuivie pour investiguer l'éventualité d'un catabolisme augmenté des androgènes dans les glandes anales.
    Notes: Abstract The observed increased incidence of idiopathic anal fistulae in men compared with women cannot be explained by the cryptoglandular hypothesis alone. Male predilect on is even more pronounced in neonates and is also seen in the canine population. Investigations into hormonal aspects of hidradenitis suppurativa suggest a possible influence of androgens in its pathogenesis. In order to investigate the possibility of a similar effect in fistulain-ano, we have compared a range of circulating sex hormones in 15 male and 12 female patients with anal fistulae with those in equal numbers of age-matched controls. There were no differences in levels of any measured hormones between male patients and healthy controls. There was no evidence of increased androgenisation of female patients. Women with fistulae had higher levels of circulating oestradiol (253 vs 163 pmol/l, medians, P=0.03) and lower levels of progesterone (1.05 vs 3.0 nmol/l, medians, P=0.039) than healthy women. Further work is merited to investigate the possiblity of increased local androgen conversion in anal glands.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...