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THE STATUS OF CERTAIN PHYSIOLOGICAL ADRENERGIC RESPONSES IN ALBINO RATS DURING DEVELOPMENT OF EXPERIMENTAL HYPERTHYROIDISM
Nizar Salim Osman, Mohsen Ismail
Lebanese State University, Beirut, Lebanon
DOI: https://doi.org/10.15407/fz61.02.060
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Abstract
In this paper we investigated the effects of thyroid hormones
on the expression of physiological reactions during adrenergic
stimulation (20 min at a dose of 2.0 mg ∙ kg -1 ∙ min -1) during
the development of experimental hyperthyroidism. Rats were
divided into two groups. The animals in Group 1 were injected
woth triiodothyronine. The duration of injection ranged from
1 to 12 days. Consequently, 12 subgroups were formed. The
second group was the control group. It is shown that in the
process of development of experimental hyperthyroidism all
physiological responses vary in accordance with the law, which
can be described by a parabola of general form with the value
of the degree in the equation equal to three.
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