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Asiye Başusta Burak Çetinkaya Nuri Başusta 《Zeitschrift fur angewandte Ichthyologie》2020,36(6):888-892
Fish specimens were captured by a commercial bottom trawler at a depth of 50–80 m from Iskenderun Bay (Hatay, Turkey) between December 2017 and May 2018. The bottom trawl gear used was equipped with a 44 mm stretched mesh size net at the cod-end. Blind side and eyed side otolith lengths (OL), otolith breadths (OB) and otolith weights (OW) were measured from each specimen to the nearest 0.001 mm and 0.0001g respectively. A total of 110 fish (43 females and 67 males) were collected. Total length ranged from 20.8 to 28.2 cm and 68.0 to 166.1 g (males) and 21.1 to −28.5 cm and 74.5 to 201.4 g (females). The coefficients of determination between fish weight and otolith weight, and total length and otolith weight (sexes combined) were found as R2 = .7694 (0.77) and R2 = .6274 (0.63), respectively. A moderate positive relationship between the total length-otolith dimensions, and fish weight-otolith dimensions, was also demonstrated. 相似文献
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The Protein Journal - Enterokinase enzyme is widely used in production of recombinant proteins. This enzyme is isolated from the intestine and recognizes a specific cleavage site... 相似文献
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Asiye Ciftci Hüseyin Karatay Filiz Kücükosmanoğlu Alptekin Karahan Zeki Kaya 《Tree Genetics & Genomes》2017,13(3):69
The European black poplar (Populus nigra L.) is an ecologically and economically important tree species for Turkey. The important and major genetic resources of species for future breeding and ex situ conservation purposes have been archived in a clone bank in Ankara by selecting clones from natural populations and old plantations throughout Turkey. There is no study to date assessing genetic composition these materials. Two-hundred-thirty-three P. nigra clones from six geographic region of Turkey (clone collection populations), and 32 trees from two natural populations (Tunceli and Melet) were genotyped by using 12 nuclear microsatellite DNA markers. There were nine clones which duplicated in various frequencies. The analysis carried out with removal of the duplicated clones revealed a moderately high genetic diversity in studied populations. The observed heterozygosities ranged from 0.59 in Tunceli natural to 0.69 in Central Anatolia clone collection populations. In general, there was excess of heterozygosity in the studied populations. Populations composed of clone collections were significantly differentiated from natural populations (F ST = 0.17), while there was little differentiation among those populations in the clone collection (F ST = 0.03). Two distantly located natural populations with small sizes also differed from each other (F ST = 0.17). Genetic structure analysis revealed two distinct groups (clone collection vs natural populations) with very high membership values (>92%). Clone collection populations had high level of admixture while natural populations had homogenous genetic structure. The presence of large number of clonal duplication, reduced genetic differentiation, and high level of admixture in clone collection populations indicate that genetic resources of European black poplar were highly degraded through genetic erosion and pollution caused by intensive cultural practices and extensive dispersal of clonal materials. To understand genetic diversity and its structural pattern thoroughly in the six clone collection populations, a further study with extensive and systematic sampling of European black poplar populations in major river ecosystems in Turkey will be useful. 相似文献
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Tree Genetics & Genomes - This study aimed to further clarify the mechanisms of salt-alkali tolerance in Fraxinus velutina Torr. Shoots obtained from Fraxinus velutina Torr (also known as... 相似文献
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Karaer Z Guven E Nalbantoglu S Kar S Orkun O Ekdal K Kocak A Akcay A 《Experimental & applied acarology》2011,54(1):85-91
In this study, a total of 5,094 ticks found on humans were examined in terms of species, development stage, gender, host features
and seasonality for a year period. Of these ticks 17 were argasid and 5,077 were ixodid. Predominantly species of the ixodid
genera Hyalomma, Dermacentor, Rhipicephalus and Haemaphysalis were found on humans in Ankara (Anatolia). Most abundant were Hyalomma nymphs (29.8%) and adults (28.2%). Primary factors in terms of tick bite risk were region, habitat and season. 相似文献
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Suat Tekin Ali Beytur Yavuz Erden Asiye Beytur Yilmaz Cigremis Nigar Vardi Yusuf Turkoz Ibrahim Tekedereli Suleyman Sandal 《Journal of cellular physiology》2019,234(6):8815-8824
Irisin is a product of fibronectin type III domain-containing protein 5 (FNDC5) and plays an important role in energy homeostasis. In this study, we aimed to determine effects of intracerebroventricular administration of irisin on the hypothalamus–pituitary–gonadal axis by molecular, biochemical, and morphological findings. Fourty male Wistar-Albino rats were used and divided into four groups including control, sham (vehicle), 10, and 100 nM irisin infused groups (n = 10). Hypothalamic gonadotropin releasing hormone (GnRH) level and serum luteinizing hormone (LH), follicle-stimulating hormone (FSH), and testosterone levels were determined. Testicular tissue histology and spermiogram analysis were also performed. Both irisin concentrations significantly reduced hypothalamic GnRH messenger RNA (mRNA) and protein levels (p < 0.05). It was found that serum LH, FSH, and testosterone levels and Sertoli and Leydig cell numbers were decreased by irisin administration (p < 0.05). In addition, irisin administration reduced sperm density and mobility (p < 0.05). However, it did not cause any change in testicular and epididymis weights and tubular diameter. Our results reveal that irisin can play a role in the central regulation of reproductive behavior and also reduces testosterone levels by suppressing LH and FSH secretion. These results suggest that the discovery of irisin receptor antagonists may be beneficial in the treatment of infertility. 相似文献
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Yazgı Dizdaroglu Canan Albay Tayfun Arslan Emir A. Turkoglu Asiye Efe 《Journal of enzyme inhibition and medicinal chemistry》2013,28(1):289-297
Abstract In this study, newly synthesised compounds 6, 8, 10 and other compounds (1–5, 7 and 9) and their inhibitory properties against the human isoforms hCA I and hCA II were reported for the first time. Compounds 1–10 showed effective inhibition profiles with K I values in the range of 5.13–16.9?nM for hCA I and of 11.77–67.39?nM against hCA II, respectively. Molecular docking studies were also performed with Glide XP to get insight into the inhibitory activity and to evaluate the binding modes of the synthesised compounds to hCA I and II. More rigorous binding energy calculations using MM-GBSA protocol which agreed well with observed activities were then performed to improve the docking scores. Results of in silico calculations showed that all compounds obey drug likeness properties. The new compounds reported here might be promising lead compounds for the development of new potent inhibitors as alternatives to classical hCA inhibitors. 相似文献