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HISTOLOGICAL AND HISTOCHEMICAL STUDY OF THE ADRENAL CORTEX OF RABBIT DURING THEHEALING OF EXPERIMENTAL BONE FRACTURE
Author(s): 
Pages: 393-408
Year: Issue:  4
Journal: Acta Anatomica Sinica

Keyword:  骨折愈合过程束状带肾上腺皮质网状带球状带类皮质激素皮盾外科手术动物皮化学观察;
Abstract: A defect of 4 mm in length was made in both radii of 140 adult male rabbits underanesthetic and antiseptic conditions. Their adrenal glands were taken at different timeintervals during the healing of the bone defect. They were studied together with thosefrom 10 normal untreated controls with various histological and histochemical techniques. There is no distinct histological changes found in the cortex, except the presence of"compact cells" in the fascicular zone and dilatation of cortical blood sinusoids on thethird day. During the healing of the fracture the fascicular and reticular zones are the chiefsites in the adrenal cortex where histochemical changes are involved. During the earlystage, 1--7 days after the fracture, they show a decrease in sudanophilia (Sudan blackB), and an increase in the naphthoic acid hydrazide reaction (Ashbel and Seligman). The reaction of alpha-ketol groups of corticoids (Khanolkar et al.) shows varying degreesof decrease in intensity, whereas the plasmal reaction (Hayes) has a tendency to in-crease in intensity. Ascorbic acid (Bacchus), acid and alkaline phosphatases (Gomori)and ribonucleic acid (Kurnick) all show an increase in reaction. All these changes re-turn to normal later during the period of 10--14 days after the fracture. Basing on the above findings, it is concluded that the adrenal cortex is at an activefunctional state during the early period of the healing process.
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