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    Comparative Analysis of Human and Porcupine (Hystrix Cristata L., 1758) Haemoglobins
    (Gazi Univ, 2008) Cigremis, Yilmaz; Atalar, Omer; Erdogan, Kenan; Gaffaroglu, Muhammet; Turkoz, Yusuf; Yilmaz, Sadik
    Agarose gel electrophoresis was used to determine the electrophoretic pattern of the haemoglobin of Hystrix cristata (H. cristata), and that of a healthy human. Alkaline agarose gel electrophoresis of the haemoglobin of H. cristata revealed that the mobility of the H. cristata haemoglobin was considerably faster than that of human haemoglobin. These comparisons showed obvious differences between the haemoglobin of the two species.
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    Physical and chemical characterization of femur during and after body development period in male and female rats
    (Wiley, 2023) Yilmaz, Sadik; Baygeldi, Saime Betul; Kanmaz, Yesim Aslan; Guzel, Baris Can; Yilmaz, Yucehan; Karan, Meryem; Guzel, Fuat
    The aim of this study was to determine the physical and chemical characteristics of the bone structures during four developmental periods. Forty Wistar Albino rats (20 male and 20 female) were divided into four groups including prepubertal period (group I), period between adolescence and adulthood (group II) and later (young adult period as group III and old adult period as group IV). The bones were analysed by morphometric measurements, XRF (X-ray fluorescence) analysis for mineral levels and BET analysis (Brunaurer-Emmett-Teller) for surface area and porosity. In morphometric measurements, the GL (greatest length) and the GLC (greatest length from caput femoris) values increased gradually from the first to the fourth group, and these values were higher in the males than the females. Phosphorus and calcium values were higher in the males in adult groups (third and fourth) compared to that for the females; however, they were higher in the females in groups up to adulthood (first and second). While the Ca/P ratio reached the highest value in the second group in the male, it decreased gradually afterwards. In females, the rate, which was close to each other in the first three groups, increased in the fourth group. Surface area size in the female and the male rats was the highest in the second group. In conclusion, changes in the rat bone structure during the development and adulthood periods of the body were revealed, and it was determined that the gender factor was effective in these changes.
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    Physical and chemical characterization of the femur during and after the body development period in male and female guinea pigs
    (Wiley, 2023) Yilmaz, Yuecehan; Aslan Kanmaz, Yesim; Baygeldi, Saime Betuel; Guezel, Baris Can; Karan, Meryem; Guezel, Fuat; Yilmaz, Sadik
    In this study, it was aimed to reveal the physical and chemical characterization of the bone structures during body development periods (prepubertal period, period between adolescence and adulthood) and after (young adult period and old adult period) in male and female guinea pigs. In this study, 40 guinea pigs (20 male, 20 female) were used. Morphometric measurements, X-ray fluorescence (XRF) analysis for mineral levels, Brunauer-Emmett-Teller (BET) analysis for surface area, and porosity analysis were applied to the bones. The male guinea pigs had greater values than females in the other three categories, with the exception of the second group, when the females have higher values in morphometric measurements. Ca levels rose up to the third group, as did P levels in the males, peaking in the third group and declining in the fourth. As with phosphorus, there was a progressive rise in females from the first to the fourth group. Fe, Zn, and Sr elements had the greatest values in both genders in the first group. In all four groups, the females had greater Zn levels than males. The highest Ca/P ratio was found in the third male group and the fourth female group. This study revealed that adolescence, adulthood, and gender are effective in the physical and chemical characterization of bone structure in guinea pigs.