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Publikováno v:
Archives Internationales de Physiologie, de Biochimie et de Biophysique. 102:153-159
We have studied the effects of in vivo administration of different T3 doses to thyroidectomized rats on electrophysiological properties, measured in vitro, of papillary muscle fibers. The treatment with increasing T3 doses was associated with a signi
Publikováno v:
Comparative Biochemistry and Physiology Part A: Physiology. 105:719-724
1. PTU treatment-induced hypothyroidism is associated with a significant decrease in the chick heart rate. 2. Hypothyroidism produces a slow onset of bradycardia, indicating a late effect of thyroid hormone decrease. 3. After 15 days treatment, an in
Publikováno v:
Cellular Physiology and Biochemistry. 2:277-282
Normal rats show levels of heart mitochondrial DNA and RNA (mit-DNA, mit-RNA) which are 0.66 and 18.82 µg/mg of mitochondrial proteins, or 0.15 and 4.35 fg/mitochondrion, respectively. Thyroidectomy reduces such values, while triiodothyronine (T3) t
Publikováno v:
Cellular Physiology and Biochemistry. 8:328-338
This study was designed to investigate the possible oxidative changes associated with alterations in cytochrome P450 levels in rat liver. Accordingly, extent of peroxidative processes, cytochrome and antioxidant content, capacity to face an oxidative
Publikováno v:
Hormone and Metabolic Research. 29:225-230
We studied the effect of in vivo administration of 3,3',5-triiodo-L-thyronine (L-T3) and other iodothyronines to thyroidectomized rats on the heart rate and electrophysiological properties, recorded in vitro, from papillary muscle fibres. The treatme
Publikováno v:
Archives of Physiology and Biochemistry. 105:58-65
We have studied the effects of thyroidectomy and the in vivo administration of different triiodothyronine (T3) doses in thyroidectomized female rats on electrophysiological properties, measured in vitro, of the anterior and posterior papillary muscle
Publikováno v:
Archives of Physiology and Biochemistry. 105:175-182
Wistar rats, fed control or vitamin E-supplemented diet, were subjected to oxidative stress by a ten day treatment with daily intraperitoneal dose of tert-butyl hydroperoxide (TBHP) (0.1 mumol/100 g body weight). The effectiveness of both diet and hy
Publikováno v:
Experientia. 52:786-794
We used an enhanced luminescence technique to study the response of rat tissues, such as liver, heart, muscle and blood, to oxidative stress and to determine their antioxidant capacity. As previously found for liver homogenate, the intensity of light
Publikováno v:
Experientia. 52:577-582
Male rats exposed to the cold (4 degrees C) for five or ten days exhibited modifications in their thyroid state, as documented by increases in serum thyroid hormone levels, to which differently graded modifications of heart weight/body weight ratio,