## 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
Effect of removal of the Harderian glands on pineal melatonin concentrations in the Syrian hamster
✍ Scribed by Elizabeth S. Panke; R. J. Reiter; M. D. Rollag
- Book ID
- 112660855
- Publisher
- Springer
- Year
- 1979
- Tongue
- English
- Weight
- 232 KB
- Volume
- 35
- Category
- Article
- ISSN
- 1420-682X
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## Abstract The Syrian hamster Harderian gland (HG) is an organ continually exposed to oxidative stress caused by high concentrations of porphyric metabolites. According to previous studies, melatonin, which is rhythmically secreted by the pineal gland and tonically produced by the HG, antagonizes
## Abstract The effects of blinding on cellular structure and porphyrin pigment content were studied in Harderian glands of pinealectomized and non‐pinealectomized adult female golden hamsters. Uterine weights were used as a criterion for pineal activity. Five weeks post‐operatively, no significant