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    Effects of selective NOS inhibition in sepsis: Evaluation of lung tissue damage and blood gases
    (INT COLLEGE OF SURGEONS, 2008) Ceran, Sami; Erikoglu, Mehmet; Sahin, Mustafa; Sunarn, Gueven Sadi; Golcuk, Murat; Pasaoglu, Hatice; Avsar, Fatih
    NO is an important mediator in the generalized inflammatory response of the body during sepsis and septic shock. We investigated the possible effects Of L-arginine and aminoguanidine on plasma NO levels and the interaction between NO levels and lung tissue damage and blood gases in sepsis. Fifty Wistar male rats were used in this study and divided into five groups: group 1, sham group; group 2, CLP (sepsis); group 3, CLP + 10 mg/kg L-arginine administration; group 4, CLP +15 mg/kg aminoguanidine administration; group 5: CLP + L-arginine + aminoguanidine given in similar doses. Sepsis was induced by cecal ligation and puncture (CLP) method. Drugs were administered at postoperative hours 4 and 12. The levels in the aminoguanidine and aminoguanidine + L-arginine groups were similar to the sham group. Lung tissue damage in the sepsis and L-arginine groups was more severe than the other groups.
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    Parathyroid autotransplantation in rats having hypoparathyroidism
    (E-CENTURY PUBLISHING CORP, 2015) Erikoglu, Mehmet; Colak, Bayram; Toy, Hatice; Gurbilek, Mehmet
    Re-implantation techniques of extracted parathyroid tissue were developed in order to prevent temporary hypocalcemia. During thyroid surgery; inadvertently removed or devascularized parathyroid gland is usually implanted in the sternocleidomastoid muscle. In this experimental study using rats with hypoparathyroidism, our aim was to investigate whether the excised parathyroid tissue could be seeded in the liver and in the peritoneum, instead of the SCM muscle. In our study, four different groups, each consisting of 10 Wistar albino rats were used (Control group, sternocleidomastoid muscle group, liver group, peritoneum group). Parathyroidectomy was performed and the parathyroid tissue was seeded into the sternocloid mastoid muscle, liver and peritoneum. After 14 days, the rats were sacrificed and levels of calcium, magnesium, phosphorus, alkaline phosphatase and parathyroid hormone were measured in rats' blood samples. The autotransplanted parathyroid tissue was then excised and examined. In all groups, parathyroid tissues were analyzed histopathologically according to calcification, necrosis, tissue loss, foreign body reaction, inflammation and fibrosis. Regarding Ca, Mg, PO4, ALP; There were no difference between the groups. When we compared control group with the other groups; a difference was observed in the levels of PTH (P<0.05). In pathological examination; regarding tissue loss; there was a difference between liver and peritoneum groups (P<0.05). In our study, we expected better result in plantings inside liver and peritone compared to SKM. However, there were no difference between the groups.