Biomedical subjects
W Ficek
Publications and source records attributed to W Ficek.
Physiological dependency between the hypothalamus and the thymus in Wistar rats. II. The neurosecretion level and microstructural changes following para-chlorophenylalanine administration. The differences in DL-5-hydroxy G-3H tryptophane incorporation in the hypothalamus of normal and thymectomized rats.
The experiments were carried out on male Wistar rats, both normal and thymectomized in which the thymus was excised in 12th h of life. 8 weeks later, the animals were administered parachlorophenylalanine [PCPA], i.e. a compound inhibiting tryptophane hydroxylase, in the amount of 200 mg/kg of body weight. The studied hypothalamus preparations, i.e. supraoptical [NSO] and paraventricular nuclei [NPV] revealed an increased level of Gomori-positive neurosecretory material in thymectomized rats when compared to control animals. It was observed that the former rodents manifested an elevated incorporation of the isotope, i.e. DL-5-Hydroxy [G-3H] Tryptophane. The calculations performed by the use of the Gosset's t-test ("Student's") showed that the difference was statistically significant (p less than 0.001).
Neurosecretory and microstructural changes in the hypothalamus of rats following administration of lithium chloride and 3H-thymidin.
Adult male rats were intraperitoneally administered aqueous solution of lithium chloride (LiCl). Studies, including neurosecretory and microstructural changes within particular neurocytes in supraoptic (NSO) and paraventricular nuclei (NPV) were performed on hypothalamic sections. In the experimental rats the administered LiCl increased the level of GOMORI-positive neurosecretory material both in supraoptic and paraventricular nuclei. Great amounts of the neurosecretory material were markedly conspicuous in the above areas after 20 days of LiCl administration. Investigations carried out on cellular nuclei of particular neurocytes showed a significant enlargement of the nuclei, and statistical calculations revealed that, in comparison with the basic control, the difference was essentially significant (p less than 0.001). 3H-thymidin administration to the rats which had previously been on LiCl for 20 days demonstrated also that within supraoptic nuclei the incorporation of the isotope in cellular nuclei took a faster course than in control animals.
State of white blood cells in peripheral blood after intraperitoneal injection of para-chlorophenylalanine (pCPA).
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Influence of adrenalin administration on rat thymus cells.
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Histochemical studies on the supraoptic and paraventricular nuclei after adrenalin administration.
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The effect of para-chlorophenylalanine (pCPA) on the lymphatic system--thymus.
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The effect of para-chlorophenylalanine (pCPA) on the lymphatic system--lymph nodes.
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[Insulinomas and extensive proliferative-hypertrophic changes in the pancreas causing excessive insulin secretion. A review of 34 cases from polish literature].
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[Stereotaxic brain stem lesions in the rat which result in tonic postural disorders. I. Behavioral aspects].
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[Stereotaxic brain stem lesions in the rat which result in tonic postural disorders. II. Neurohistological aspects].
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[Stereotaxic brain stem lesions in the rat resulting in tonic postural disorders. III. Biochemical aspects].
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[Postural disorders after experimental head injuries in mice. Behavioral and biochemical aspects].
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