𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Melatonin and porphyrin in the harderian glands of the syrian hamster: Orcadian patterns and response to autumnal conditions

✍ Scribed by Gerald R. Buzzell; Andreas Pangerl; Brigitte Pangerl; Armando Menendez-Pelaez; Mary K. Vaughan; John C. Little; Steven M. Hill; George M. Vaughan; Russel J. Reiter


Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
672 KB
Volume
22
Category
Article
ISSN
0020-711X

No coin nor oath required. For personal study only.


📜 SIMILAR VOLUMES


Immunocytochemical localization of melat
✍ Coto-Montes, Ana M. ;Rodríguez-Colunga, María J. ;Tolivia, Delio ;Menéndez-Peláe 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 522 KB

## Background: The Harderian gland (HG) is a tubulo-alveolar gland found within the ocular orbit of animals which present a nictitating membrane. The Harderian gland is regarded as an extrapineal melatonin producing organ and both, photoperiod and melatonin have been shown to exert an important ro

Bromocriptine prevents the castration-in
✍ Buzzell, Gerald R. ;Menendez-Pelaez, Armando ;Porkka-heiskanen, Tarja ;Pangerl, 📂 Article 📅 1989 🏛 John Wiley and Sons 🌐 English ⚖ 478 KB

The Harderian glands in Syrian hamsters exhibit a striking sexual dimorphism. Male Harderian glands show two cell types and low levels of porphyrins and melatonin. Of the enzymes involved in the synthesis of melatonin, N-acetyltransferase (NAT) and hydroxyindole-0methyltransferase (HIOMT) show high

Sexual differences in 5′-deiodinase acti
✍ Amalia Rubio; Armando Menendez-Pelaez; Gerald R. Buzzell; Mary K. Vaughan; Georg 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 745 KB

Sexual differences on thyroxine 5'-deiodinase (5'-D) in the Harderian gland of Syrian hamsters were investigated. We compared the 24-h profile of 5'-D activity in male and female hamsters, observing a clear rhythm in males but not in females. Female values were always significantly higher than male

Androgenic control of N-acetyltransferas
✍ Armando Menendez-Pelaez; Gerald R. Buzzell; Aldo Gonzaiez-Brito; Russel J. Reite 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 328 KB

N-acetyltransferase (NAT) activity in the Harderian glands of intact and gonadectomized male and female Syrian hamsters was evaluated. The exogenous administration of Sa-dihydrotestosterone (DHT) to castrated males and intact females produced an increase in NAT values, which reached the values prese