+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Effects of neonatal testosterone administration on anterior pituitary levels of Met5-enkephalin in adult rats

, : Effects of neonatal testosterone administration on anterior pituitary levels of Met5-enkephalin in adult rats. Brain Research 279(1-2): 343-346

Neonatal injection of testosterone to male rats significantly increased the anterior pituitary level of Met5-enkephalin-like immunoreactivity (ME-LI) in adulthood. Neonatal castration resulted in a decrease of the ME-LI level, but neonatal testosterone administration failed to restore the level. Combined administration of androgens neonatally and in adulthood was required to restore the level to that of unoperated controls. On the other hand, neonatal testosterone injection to female neonates diminished the elevation of ME-LI level which occurred after ovariectomy in adulthood. These results suggest that neonatal testosterone plays some role in priming or modifying the responsiveness of the anterior pituitary ME system to gonadal hormones present during adulthood.


PMID: 6640352

Other references

Roychoudhury, N.; Joshi, K.C.; Gupta, B.N., 1996: Bio-control of forest insect pests by using Bacillus thuringiensis Berliner. A review is given of the use of Bacillus thuringiensis as a potent insect biocontrol agent. Aspects covered include history, discovery and commercial isolates available, marketed products, taxonomy based on serotype, mode of action, and different...

Rossi, R.H., 1985: Use of bromhexine in respiratory diseases of poultry. In a broiler farm with Mycoplasma and reovirus infection, where all birds received routine treatment with tylosin and oxytetracycline, bromhexine added to the feed at 1 kg/tonne for 5-7 days, before or during the appearance of respiratory symptoms...

Mohr, W.; Doms, E.; Wessinghage, D., 1989: Ultrastructure of reparation collagen and its relations to residual hyaline joint cartilage in inflammatory cartilage destruction. The development of collagenous fibrils in reparative tissues replacing hyaline cartilage in arthritic joints was investigated by electron microscopy: granulation tissue consists of a loose network of collagenous fibrils, scar tissue is characteriz...

Husby G.; Sletten K.; Michaelsen T.E.; Natvig J.B., 1973: Studies on the antigenic and immunochemical properties of amyloid fibrils. Peeters, H (Ed ) Protides Of The Biological Fluids Proceedings Of A Colloquia Vol 20 Brugge, Belgium, 1972 Xvi+611p Illus Pergamon Press: Oxford, England; New York, N Y , U S A 95-98

Dymshits, L.A., 1964: On The Ontogenesis Of Conjugated Eye Movements In Children. (Review Of Soviet And Foreign Literature). Vestnik Oftalmologii 77: 67-79

Cherniavskiĭ, G.Ia., 1968: Complications after glaucoma surgery. Oftalmologicheskii Zhurnal 23(1): 16-22

Lanzelotti, J.J.; Marsili, R.C.A.; Sarasola, E.A.; Casal, A., 1987: Trial on planting distances of peaches trained as semipalmettes for the periods 1984/85, 1985/86 and 1986/87. Yields are tabulated for the sixth, seventh and eighth harvests of peach (cv. Limon Marelli) trees planted at 2 x 4 m (1250 trees/ha), 3 x 4 m (825 trees/ha) and 4 x 4 m (625 trees/ha). Yields/ha were similar for all planting distances. Yields/tre...

Mochizuki, A.; Yahata, C.; Takai, H., 2016: Cytocompatibility of magnesium and AZ31 alloy with three types of cell lines using a direct in vitro method. Magnesium alloys have been investigated by many researchers as a new absorbable biomaterial owing to their excellent degradability with non-maleficence or low-maleficence in living tissues. In the present work, the in vitro cytocompatibility of an...

Mulle, C.; Steriade, M.; Deschênes, M., 1985: Absence of spindle oscillations in the cat anterior thalamic nuclei. Intracellular recordings were performed in cat anterior thalamic nuclei (anterior ventral, medial and dorsal) which, according to a recent anatomical study, do not receive afferents from the reticularis thalami nucleus. Neurons of anterior nuclei...

Bailey, D.R.C.; Liu, M.F.; Shannon, N.H., 1995: Effects of dietary energy planes on growth and heritability estimates for postweaning growth traits in young beef bulls. Records of young AN and young HE bulls were analyzed to evaluate the influences of dietary energy planes on growth and heritability estimates of growth traits during 168-d postweaning test. Estimates of h-a-2. for end of test weight (WT168), avera...