Document Details
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Document Type |
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Project |
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Document Title |
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Histological and physiological study of the islets of Langerhans in the pigeon home. دراسة هستولوجية وفسيولوجية لجزر لانجرهانز في الحمامة المنزلية. |
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Document Language |
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Arabic |
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Abstract |
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This research was conducted to study the potential impacts as a result of lack of the hormone insulin and cobalt chloride on the cellular composition of the pancreas, and on some aspects of the metabolism of sugars and proteins in the adult males of the domestic pigeon. We have explained the electron microscope the fine structure of the active secretory cells filled with pellets and particles Zamujan, Omadzr of Langerhans has explained that the three types of cells depending on the installation of granular, cells are alpha, beta, and delta. It has been shown in birds treated with chloride, cobalt effect on some cells in the form of decay and disintegration of the network RER and granules Zamujan, and the injection Alastrepettussotsn caused a segment of some islands, shrinking and overlap some of the cells, as well as loss of concentration and Asbtag alkali of the nuclei. When using material Alastrepettussotsn destructive beta cells, found that the concentration of plasma glucose increased significantly declined, while the liver and muscle glycogen, total protein also decreased significantly in the liver and muscles. After injection of cobalt chloride, the back of sustained high blood sugar. The Ironing protein in the liver was the lack of moral normal levels. In the long-term study, the cause of cobalt chloride significantly increased (51%) in the plasma concentration of sugar, but it is back to normal on the twelfth day. It also did not notice significant changes in hepatic glycogen content, while the lack of muscle glycogen significantly (18%) after twelve days, while total protein did not affect the long-term experiments.
The above results in the pigeon show that the effects of short-term chloride cobalt was the crane to the level of blood sugar, and a cause of the disintegration of glycogen and protein, some changes (high sugar and the disintegration of glycogen), which were observed on the fourth day, she returned to normal on the twelfth day, so the with the cobalt chloride complex and may have no effect on the two types of alpha cells, and are known by, and whether the effects observed by stimulating the secretion of the hormone glucagon that the inhibition of secretion of the hormone insulin, it remains a question to the urges and needs study. |
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Publishing Year |
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1415 AH
1995 AD |
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Added Date |
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Wednesday, April 30, 2008 |
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Researchers
| صفاء أحمد الصيفي | alsaifi, safa ahmed | Investigator | Doctorate | |
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