Autor: Ciftci, A. - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Therapeutic potential of cristobalite in the treatment of calf diarrhea
Autorzy:: Ozcan, U.
Sezener, M.G.
Sayilkan, B.U.
Kulluk, E.
Akman, A.
Cetiner, H.
Erguden, V.E.
Yaman, S.
Gumusova, S.
Ciftci, A.
Meral, Y.
Dalgın, D.
Tematy:: calf diarrhea
cristobalite
CS31a
zeolite; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Powiązania:: https://bibliotekanauki.pl/articles/16539326.pdf Link otwiera się w nowym oknie
Opis:: Calf diarrhea continues to be the major problem of calves in the neonatal period. The effect of zeolites has been increasingly studied in ruminant health in recent years. In the present study, the efficacy of cristobalite, a zeolite, in neonatal calf diarrhea was studied first time. For this purpose, twenty-five neonatal calves with diarrheas were divided into two groups, and Group 1 (n=12) received conventional treatment and Group 2 (n=13) received cristobalite (Zoosorb 10 mg/kg) orally 3 times a day in addition to conventional treatment. Escherichia coli k99 and CS31a, bovine rotavirus and bovine coronavirus were isolated from fecal samples at the beginning of the treatment, on the third day and before discharge. It was determined that the recovery period in Group 2 was 0.95 (20.6%) days shorter than in Group 1 (p<0.05) while no viral agents were found on the fifth day in Group 2, viral shedding continued in 4 of 5 calves in Group 1. In conclusion, the study revealed that cristobalite speeds the recovery time and possibly decreases viral shedding in neonatal calf diarrhea, demonstrating a remarkable efficiency in the treatment.
Dostawca treści:: Biblioteka Nauki

Artykuł

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Skocz do pozycji: 2.

Tytuł:: Synthesis, Characterization and Cr(VI) Adsorption Properties of Modified Magnetite Nanoparticles
Autorzy:: Çıftçı, H.
Ersoy, B.
Evcın, A.
Tematy:: nanomagnetite
adsorption
Cr(VI)
Langmuir
Freundlich
adsorption kinetics; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/1031143.pdf Link otwiera się w nowym oknie
Opis:: In this study, magnetite (Fe₃O₄) nanoparticles were synthesized by chemical co-precipitation method, coated with silica, and then the surface of silica coated magnetite (Fe₃O₄@SiO₂) nanoparticles was modified with (3-aminopropyl)triethoxysilane (APTES) at first. Secondly, attained nanoparticles were characterized by the Fourier transform infrared, X-ray diffraction, transmission electron microscopy, the Brunauer-Emmett-Teller, vibrating sample magnetometer, and zeta-sizer devices/methods. Finally, detailed adsorption experiments were performed to remove hexavalent chromium (Cr(VI)) from aqueous media by synthesized nanoparticles. Mean size and specific surface area of synthesized nanoparticles were about 15 nm and 89.5 m²/g, respectively. The highest adsorption capacity among used adsorbents (Fe₃O₄, Fe₃O₄@SiO₂, Fe₃O₄@SiO₂@L) was attained by Fe₃O₄ nanoparticles and it was determined that adsorption capacity of the other two adsorbents was too low when compared to the Fe₃O₄ nanoparticles. Optimum conditions for Cr(VI) adsorption by Fe₃O₄ nanoparticles were: pH, 3; temperature, 55°C; contact time, 90 min; adsorbent concentration, 0.5 g/l and initial Cr(VI) concentration 10 mg/l. Under these conditions, adsorption capacity and removal percentage of Cr(VI) were found to be 33.45 mg/g and 88%, respectively.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Curcumin abates formaldehyde-induced neurotoxicity via NO pathway and the change of minerals (calcium, iron, zinc, copper, magnesium) in brain tissue
Autorzy:: Çiftci, G.
Çenesiz, S.
Ertekin, A.
Ormancı, N.
Söğüt, M. Ü.
Tuna, E.
Çenesiz, M.
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Powiązania:: https://bibliotekanauki.pl/articles/961294.pdf Link otwiera się w nowym oknie
Opis:: Oxidative stress has been defined as an imbalance between higher cellular levels of reactive oxygen species (ROS). If ROS are not controlled by enzymatic and non-enzymatic antioxidants, they can cause oxidative injury. Brains are protected by antioxidants from nitro-oxidative and peroxidative damage. The antioxidant enzymes are superoxide dismutase and catalase, which contain zinc (Zn) and copper (Cu) as cofactors. Also, trace elements have important effects on brain development and function. In this study, we aimed to investigate the effect of curcumin administration on the exchange of nitric oxide (NO) and on the calcium (Ca), iron (Fe), Zn, Cu, and magnesium (Mg) levels in brain tissue. Animals (a total of 30 adult Wistar albino rats, 4-6 months old) were randomly divided into three groups (n = 10): control, formaldehyde-exposed, and treated daily with curcumin after formaldehyde exposure (100 mg kg-1). At the end of the experimental period (the 14th day), NO levels were measured by ELISA. Ca, Fe, Zn, Cu, and Mg levels in whole-brain tissues were determined by Atomic Absorption Spectrophotometry in all groups. NO and Mg levels were increased and Cu and Ca levels were decreased in the group treated with curcumin when compared with the formaldehyde-only group. These changes were not statistically significant (P > 0.05). However, Fe levels were significantly reduced and Zn levels were significantly increased (P < 0.05). In conclusion, the administration of curcumin as an antioxidant may be a factor in regulating the mineral balance of the brain in conditions of oxidative stress caused by the application of FA. Curcumin may play a role in reducing FA-induced cellular damage, and may contribute to the treatment of neurodegenerative diseases such as Alzheimer’s and Parkinson’s.
Dostawca treści:: Biblioteka Nauki