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    Effects of vitamin C on ANAE positivity and blood cells in ACTH induced stress in chicken
    (INDIAN VETERINARY JOURNAL, 2007) Doenmez, Hasan Hueseyin; Yoeruk, Mecit; Cinar, Ali; Doenmez, Nurcan
    Animals treated with ACTH show evidence of stress and lymphatic involution (Everaus et al., 1997). Profiles of circulating leucocytes were also affected (Stevenson and Taylor, 1988). Although many researchers have investigated the effects of stress and vitamin C on some blood parameters the effects of Vitamin C on alpha naphthyl acetate esterase (ANAE) have not been adequately investigated yet. Therefore, it would be useful to establish the effects of vitamin C on ANAE activity and some blood parameters in chicken stressed by ACTH.
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    The histological characteristics and localisation of ACP and ANAE positive lymphocytes in the oesophageal tonsil of the duck (Anas platyrhynchos)
    (SCIENCE REVIEWS 2000 LTD, 2012) Doenmez, Hasan Hueseyin; Eken, Emrullah; Besoluk, Kamil; Sur, Emrah
    This study was carried out to examine histological and enzyme histochemical characteristics of the oesophageal tonsil in ducks (Anas platyrhynchos). Tissue samples were collected from distal parts of the mucosal folds at the oesophageal/proventricular junction. We applied alpha naphthyl acetate esterase and acid phosphatase to tissue sections for localisation of T or B lymphocytes. Trichrome staining, silver impregnation, methyl green-pyronin staining and PAS reaction were used for determination of light microscopic structure of the oesophageal tonsils. The oesophageal tonsils were located at the junction of the oesophagus and proventriculus. Interestingly, we detected the existence of high endothelial venules in the interfollicular area and of the accumulated positive cells in lymphoid nodules. It can be said that these tonsils have functions similar to the Harderian gland in avian species and Waldeyer's ring in mammalian species.