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The Effect Of N-Acetylcysteine On Growth And Biofilm Formation In Staphylococcus Epidermidis Strains, Sahra Kirmusaoğlu, Seyhun Yurdugül, Mücahi̇de Esra Koçoğlu
The Effect Of N-Acetylcysteine On Growth And Biofilm Formation In Staphylococcus Epidermidis Strains, Sahra Kirmusaoğlu, Seyhun Yurdugül, Mücahi̇de Esra Koçoğlu
Turkish Journal of Medical Sciences
Aim: To examine the possible preventive effect of N-acetylcysteine (NAC) on biofilm formation in Staphylococcus epidermidis strains, which cause very important problems such as implant-associated infections in hospitalized and immunocompromised patients worldwide. Materials and methods: The effects of varying concentrations of NAC on the formation of biofilm by 28 strains of Staphylococcus epidermidis was investigated spectrophotometrically by micro-ELISA assay. Results: Significant differences in biofilm formation in the presence of various NAC concentrations were found in 15 methicillin-resistant Staphylococcus epidermidis and 13 methicillin-sensitive Staphylococcus epidermidis strains (P < 0.05). Conclusion: It was found that slime formation was decreased due to the increased concentrations of the NAC treatments. Based on these findings, it is possible to use NAC as an antibiofilm agent on medical devices or in catheter lock solutions to prevent colonization and implant-associated infections.
In Vitro Efficacy Of Hyperbaric Oxygen Therapy Against Leishmania Tropica Promastigotes And Amastigotes, Özgür Koru, Soykan Özkoç, Kemal Şi̇mşek, Gürkan Mert, Hakan Ay, Seray Töz, Mehmet Tanyüksel
In Vitro Efficacy Of Hyperbaric Oxygen Therapy Against Leishmania Tropica Promastigotes And Amastigotes, Özgür Koru, Soykan Özkoç, Kemal Şi̇mşek, Gürkan Mert, Hakan Ay, Seray Töz, Mehmet Tanyüksel
Turkish Journal of Medical Sciences
Aim: To assess the efficiency of hyperbaric oxygen (HBO) therapy on L. tropica, which is the major causative agent of cutaneous leishmaniasis in Turkey. Materials and methods: The effects of HBO on Leishmania tropica promastigote and amastigote forms were studied at a pressure of 2.5 atmosphere absolute (ata). We examined the cytotoxic effect of HBO on promastigotes using the trypan blue exclusion test and the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) dye-reduction assay. To investigate the effects of HBO treatment on the growth of the promastigotes, HBO-treated and non-HBO-treated cell culture flasks were incubated at 26 °C for 3 days, while the effects …
Effects Of Ankaferd Hemostat On The Synovial Fluid Of Patients With Osteoarthritis, Mehmet Aki̇f Öztürk, Zeli̇ha Koçak Tufan, Mehmet Derya Demi̇rağ, İbrahi̇m Celaletti̇n Haznedaroğlu
Effects Of Ankaferd Hemostat On The Synovial Fluid Of Patients With Osteoarthritis, Mehmet Aki̇f Öztürk, Zeli̇ha Koçak Tufan, Mehmet Derya Demi̇rağ, İbrahi̇m Celaletti̇n Haznedaroğlu
Turkish Journal of Medical Sciences
Ankaferd Blood Stopper (ABS) is a novel topical hemostatic agent with antiinfective, wound healing, and antineoplastic properties. In this study, we evaluated the macroscopic and biochemical effects of ABS in the joint fluid of patients with osteoarthritis. Materials and methods: Synovial fluid samples were obtained from 10 patients with osteoarthritis (5 women, 5 men; mean age 57.6 ± 11.2 years). From each patient, 4 mL of synovial fluid was drawn and put into 2 different serum separator tubes, and 1 mL of ABS was added to the first sample and 1 mL of 0.9% saline was added to the second …
Dysregulation Of Nitric Oxide Synthase Activity And Bcl-2 And Caspase-3 Gene Expressions In Renal Tissue Of Streptozotocin-Induced Diabetic Rats, Hüseyi̇n Aktuğ, Vi̇ldan Bozok Çeti̇ntaş, Buket Kosova, Fati̇h Oltulu, Şi̇ri̇n Bakti Demi̇ray, Türker Çavuşoğlu, Saadet Özen Akarca, Altuğ Yavaşoğlu
Dysregulation Of Nitric Oxide Synthase Activity And Bcl-2 And Caspase-3 Gene Expressions In Renal Tissue Of Streptozotocin-Induced Diabetic Rats, Hüseyi̇n Aktuğ, Vi̇ldan Bozok Çeti̇ntaş, Buket Kosova, Fati̇h Oltulu, Şi̇ri̇n Bakti Demi̇ray, Türker Çavuşoğlu, Saadet Özen Akarca, Altuğ Yavaşoğlu
Turkish Journal of Medical Sciences
To evaluate the effects of diabetes on nitric oxide synthase (NOS) activity and on gene expressions of B-cell lymphoma protein 2 (Bcl-2) and caspase-3 in the renal tissues of streptozotocin (STZ)-induced rats. Materials and methods: Twenty rats were analyzed in 2 equally distributed groups of healthy controls and STZ-induced diabetic rats. Rats with blood glucose levels of >=250 mg/dL were considered diabetic. Renal tissue sections were analyzed histomorphologically and immunohistochemically. Gene expressions of caspase-3 and Bcl-2 were evaluated by real-time quantitative polymerase chain reaction. Results: Bcl-2 expression significantly decreased in the diabetic group, both at the gene and protein level. …
The Effects Of Stobadine On Purine Metabolism In Rats Treated With Carbon Tetrachloride, Ni̇lüfer Bayrakdar, Seda Duygulu Devay, Mi̇ne Yavuz Taşlipinar, Suna Ömeroğlu, Seyhan Gümüşlü, Mustafa Kavutçu, Orhan Canbolat
The Effects Of Stobadine On Purine Metabolism In Rats Treated With Carbon Tetrachloride, Ni̇lüfer Bayrakdar, Seda Duygulu Devay, Mi̇ne Yavuz Taşlipinar, Suna Ömeroğlu, Seyhan Gümüşlü, Mustafa Kavutçu, Orhan Canbolat
Turkish Journal of Medical Sciences
The aim of the present study was to investigate the relationship between liver damage induced by carbon tetrachloride (CCl_4) and adenosine deaminase (ADA), 5'-nucleotidase (5'NT), xanthine oxidase (XO) enzyme activities, and malondialdehyde (MDA) levels. The effect of stobadine on purine metabolism was also evaluated. Materials and methods: This study measured the effect of CCl_4 on ADA, 5'NT, XO enzyme activities, and MDA levels, and measured the histopathologic changes in liver cells. Results: Our research found that ADA, XO activities, and MDA levels increased in the CCl_4 group when compared with the control group. This was also supported by the histopathological …
Effects Of L-2-Oxоthiazolidine-4-Carboxylic Acid On The Lung Antioxidant Defense System In An Asthma Mouse Model, Lyudmil Georgiev Terziev, Veneta Lyubenova Shopova, Violeta Yordanova Dancheva, Galya Tzvetanova Stavreva, Angelina Milcheva Stoyanova
Effects Of L-2-Oxоthiazolidine-4-Carboxylic Acid On The Lung Antioxidant Defense System In An Asthma Mouse Model, Lyudmil Georgiev Terziev, Veneta Lyubenova Shopova, Violeta Yordanova Dancheva, Galya Tzvetanova Stavreva, Angelina Milcheva Stoyanova
Turkish Journal of Medical Sciences
We aim ed to study the effect of a glutathione precursor, L-2-oxothiazolidine-4-carboxylic acid (OTCA), on the lung antioxidant defense system in an animal asthma model. Materials and methods: The study was carried out on 24 female C57BL/6 mice. The mice were divided into 4 treatment groups: group 1 - control group; group 2 - injected with ovalbumin (OVA) and given an OVA inhalant; group 3 - treated with OTCA and phosphate-buffered saline inhalant; and group 4 -injected with OVA and OTCA and given an OVA inhalant. Under sodium pentobarbital anesthesia the animals were killed by exsanguination 48 h after the …
Limb Remote Ischemic Postconditioning Is Effective But Also Time-Course-Limited In Protecting The Brain From I/R Injury, Ce Xu, Chengju Yi, Haidong Guo, Qiangqiang Liu, Li Wang, Hongxia Li
Limb Remote Ischemic Postconditioning Is Effective But Also Time-Course-Limited In Protecting The Brain From I/R Injury, Ce Xu, Chengju Yi, Haidong Guo, Qiangqiang Liu, Li Wang, Hongxia Li
Turkish Journal of Medical Sciences
To determine the effect of limb remote ischemic postconditioning (LIPoC) against cerebral ischemia reperfusion in rats and the relationship between cycle number or remote postconditioning episode duration and the protective function of LIPoC. Materials and methods: Transient focal ischemia/reperfusion was induced by 90 min of middle cerebral artery occlusion (MCAO) with nylon monofilament and 22 h of reperfusion in male Sprague-Dawley rats. The animals underwent LIPoC consisting of 1, 2, or 3 cycles, with each occlusion or release lasting for 5 min (5/5), 10 min (10/10), or 15 min (15/15) of bilateral femoral artery occlusion/release. Neurological score, infarct volume, water …
Tularemia As A Result Of Outdoor Activities For Children In The Countryside, Şaban Gürcan, Gamze Varol Saraçoğlu, Aynur Karadeni̇zli̇, Emi̇ne Neşe Özkayin, Şemsi̇ Zafer Öztürk, Cemal Çi̇çek, Bi̇nay Vatansever
Tularemia As A Result Of Outdoor Activities For Children In The Countryside, Şaban Gürcan, Gamze Varol Saraçoğlu, Aynur Karadeni̇zli̇, Emi̇ne Neşe Özkayin, Şemsi̇ Zafer Öztürk, Cemal Çi̇çek, Bi̇nay Vatansever
Turkish Journal of Medical Sciences
To investigate the features of a new tularemia outbreak that occurred in the Thrace region. Materials and methods: The research team visited the village after the identification of the index case. Serum and throat samples were taken from 41 villagers who were examined, and environmental samples were taken in order to identify the source of the outbreak. Culture, serology, and molecular methods were used to search for Francisella tularensis in these samples. Results: A total of 8 children were diagnosed with tularemia. The adults and all of the other children were seronegative for tularemia. All of the patients had a …
Histopathological Effects Of The Food Contaminant Furan On Some Endocrine Glands Of Prepubertal Male Rats, Eli̇f Karacaoğlu, Güldeni̇z Selmanoğlu, Aysun Kiliç
Histopathological Effects Of The Food Contaminant Furan On Some Endocrine Glands Of Prepubertal Male Rats, Eli̇f Karacaoğlu, Güldeni̇z Selmanoğlu, Aysun Kiliç
Turkish Journal of Medical Sciences
To evaluate the toxicity of furan on the thyroid gland, adrenal gland, and pancreas of prepubertal male rats. Materials and methods: Furan was administered orally to 3-4-week-old male rats at doses of 2, 4, and 8 mg kg^{-1} day^{-1} by dissolving in corn oil for 90 days. The rats were sacrificed by cervical dislocation at the end of the experiment. Their endocrine glands including the thyroid gland, adrenal gland, and pancreas were removed and weighed. Tissues were examined morphologically and histopathologically under a light microscope. Results: Organ and relative organ weights of rats did not change with furan administration. Histopathological …
Genotyping Of Giardia Intestinalis Isolated From People Living In Sivas, Turkey, Serpi̇l Değerli̇, Naci̇ Değerli̇, Ali̇ Çeli̇ksöz, Semra Özçeli̇k
Genotyping Of Giardia Intestinalis Isolated From People Living In Sivas, Turkey, Serpi̇l Değerli̇, Naci̇ Değerli̇, Ali̇ Çeli̇ksöz, Semra Özçeli̇k
Turkish Journal of Medical Sciences
The technique of polymerase chain reaction–restriction fragment length polymorphism (PCR-RFLP) genotyping was used to characterise morphologically identical isolates of Giardia intestinalis from human stool samples. Materials and methods: In this study a total of 17 trophozoite samples, obtained either directly from stool samples or after excystation, or by duodenal aspiration, were used. A set of primers was chosen to amplify the different regions of triose phosphate isomerase (tpi) and a segment of the glutamate dehydrogenase (gdh) genes. A single-stranded conformational polymorphism technique was also used in an attempt to discriminate among some subgroups. Results: Only primers of the 683-bp segment …
Characterization Of Uropathogenic Escherichia Coli Strains Obtained From Urology Outpatient Clinic Of Ege Medical Faculty In İzmir, Betül Gi̇ray, Füsun Bahri̇ye Uçar, Sabi̇re Şöhret Aydemi̇r
Characterization Of Uropathogenic Escherichia Coli Strains Obtained From Urology Outpatient Clinic Of Ege Medical Faculty In İzmir, Betül Gi̇ray, Füsun Bahri̇ye Uçar, Sabi̇re Şöhret Aydemi̇r
Turkish Journal of Medical Sciences
To identify the papG gene and its allelic variation in uropathogenic Escherichia coli (UPEC) strains isolated from patients with acute pyelonephritis and cystitis. Materials and methods: Seventy-five E. coli strains isolated from patients admitted to the University of Ege Medical Faculty urology outpatient clinic were isolated and identified phenotypically. All of these strains were examined for the papG gene and allelic distribution of this gene with the multiplex polymerase chain reaction technique. Results: papG genes were found in 24 of 75 E. coli strains. Of these 24 strains, 7 (29%) had papG class II only, 8 (33%) had class III …
Minimum Inhibitory And Minimum Bactericidal Concentrations Of Boron Compounds Against Several Bacterial Strains, Murat Tolga Yilmaz
Minimum Inhibitory And Minimum Bactericidal Concentrations Of Boron Compounds Against Several Bacterial Strains, Murat Tolga Yilmaz
Turkish Journal of Medical Sciences
Boron compounds are essential micronutrients for many organisms. However, they negatively affect plant, soil, and water microflora if excessive amounts exist in irrigation water. Therefore, this study aimed to define the minimum inhibitory concentrations (MICs) and minimum bactericidal concentrations (MBCs) of boric acid and borax by selecting the bacteria that can survive in all environments. Materials and methods: The antibacterial efficacy of boric acid and borax against several bacterial strains was evaluated 3 times with the macrodilution broth method. Results: The MICs and MBCs of boric acid were obtained as 3.80 mg/mL, 3.80 mg/mL, 7.60 mg/mL, and 7.60 mg/mL against …
Circulating Levels Of Igf-I And Igfbp-3 In Gastric Cancer, Konca Altinkaynak, Mehmet Bi̇li̇ci̇, Nuri̇ Bakan, Fati̇h Akçay
Circulating Levels Of Igf-I And Igfbp-3 In Gastric Cancer, Konca Altinkaynak, Mehmet Bi̇li̇ci̇, Nuri̇ Bakan, Fati̇h Akçay
Turkish Journal of Medical Sciences
To explore the causative mechanism of gastric carcinoma and to investigate the roles of circulating IGF-I and IGFBP-3 in gastric cancer. Materials and methods: Serum IGF-I and IGFBP-3 concentrations were measured using a 2-site coated tube immunoradiometric assay. Results: Serum IGF-I and IGFBP-3 values in gastric cancer patients were significantly lower compared to those in the control group. The difference between serum IGF-I/IGFBP-3 in patients and the control group was not significant. Conclusion: The low serum IGF-I and IGFBP-3 levels detected in patients with gastric cancer could be due to decreased synthesis or increased catabolism of IGF-I or both. It …
The Effect Of Intermittent Fasting And Water Restriction On Myocardial Ischemia/Reperfusion-Induced Arrhythmia In Rats, Sali̇h Tunç Kaya, Ömer Bozdoğan
The Effect Of Intermittent Fasting And Water Restriction On Myocardial Ischemia/Reperfusion-Induced Arrhythmia In Rats, Sali̇h Tunç Kaya, Ömer Bozdoğan
Turkish Journal of Medical Sciences
To investigate the effect of intermittent fasting and water restriction on ischemia/reperfusion-induced arrhythmias. Materials and methods: Six minutes of ischemia followed by 6 min of reperfusion was produced by the ligation and then releasing of the left coronary artery. Intermittent fasting and water restriction were applied during 1 month for 12 h/day. The duration, type, and incidence of arrhythmias during reperfusion and the survival rate at the end of reperfusion were determined and compared. Results: The score of arrhythmia that was determined using the type and duration of arrhythmia did not show significant differences among groups. The arrhythmic period was …
Effects Of Combined Oral Contraceptives On The Skin Of Mice, Nibras Hatim Khamees, Insaf Jasim Mahmoud, Amal Al Khateeb
Effects Of Combined Oral Contraceptives On The Skin Of Mice, Nibras Hatim Khamees, Insaf Jasim Mahmoud, Amal Al Khateeb
Turkish Journal of Medical Sciences
To find the effects of a combination of 2 widely used contraceptives, ethinyl estradiol and cyproterone acetate (ECPA), on skin and sebaceous gland morphology and dermal vascularity of mice. Materials and methods: Female mice were divided into groups: treatment with ECPA for 1 month (T) and its control (C); and cessation of treatment for an additional month (recovery, R) and its control (CR). Body weight, skin histology and morphometry, and vaginal smears were performed and analyzed. Results: In the T and R groups, there was a significant increase in epidermal and dermal thickness and dermal vascularity. In group T, the …
Correlation Between The Protein Content And Mechanical Properties Of Wheat, Mehmet Başlar, Fati̇h Kalkan, Mazhar Kara, Mustafa Fati̇h Ertugay
Correlation Between The Protein Content And Mechanical Properties Of Wheat, Mehmet Başlar, Fati̇h Kalkan, Mazhar Kara, Mustafa Fati̇h Ertugay
Turkish Journal of Agriculture and Forestry
The mechanical properties of wheat varieties are important in the milling industry. This study investigated the correlation between the protein content of 5 wheat varieties and their mechanical properties of rupture force, energy absorbed, and hardness. Based on correlation coefficients, a strong correlation was found between the protein content of all wheat varieties investigated and their mechanical properties. The correlation levels between the protein content and rupture force, energy absorbed, and hardness were r = 0.953, 0.883, and 0.884 for X-X load orientation and r = 0.955, 0.963, and 0.954 for Y-Y load orientation, respectively.
Late Miocene Palaeoclimate And Ecosystem Dynamics In Southwestern Bulgaria − A Study Based On Pollen Data From The Gotse-Delchev Basin, Dimiter A. Ivanov, Torsten Utescher, A. Rahman Ashraf, Volker Mosbrugger, Vladimir Bozukov, Nadezhda Djorgova, Evgenia Slavomirova
Late Miocene Palaeoclimate And Ecosystem Dynamics In Southwestern Bulgaria − A Study Based On Pollen Data From The Gotse-Delchev Basin, Dimiter A. Ivanov, Torsten Utescher, A. Rahman Ashraf, Volker Mosbrugger, Vladimir Bozukov, Nadezhda Djorgova, Evgenia Slavomirova
Turkish Journal of Earth Sciences
A profile 63 m thick in the Late Miocene in the Gotse-Dechev Basin (SW Bulgaria) was sampled for pollen analysis in the Kanina opencast mine. The exposed sequence comprises a basal unit with brown coal-clay cycles and clayey/siliciclastic cover layers partly representing a lacustrine facies. A total of 60 pollen samples were analysed, but quantitative data are confined to 30 polleniferous samples. The palynological analysis carried out provides data about the composition and structure of the fossil vegetation. The main vegetation type was a mixed mesophytic forest dominated by Carya, Fagus, Betula, Quercus, and Ulmus. Accessory elements included Magnolia, Corylopsis, …
Discovery Of A Mississippian Reef In Turkey: The Upper Viséan Microbial-Sponge-Bryozoan-Coral Bioherm From Kongul Yayla (Taurides, S Turkey), Julien Denayer, Markus Aretz
Discovery Of A Mississippian Reef In Turkey: The Upper Viséan Microbial-Sponge-Bryozoan-Coral Bioherm From Kongul Yayla (Taurides, S Turkey), Julien Denayer, Markus Aretz
Turkish Journal of Earth Sciences
For the first time, a Mississippian reef is described from Turkey. This microbial-sponge-bryozoan-coral bioherm has been discovered in the Central Taurides (South Turkey), at Kongul Yayla located between Hadim and Taşkent. The bioherm contains a rich and diversified fauna: sponges and rugose corals are of particular interest. The bioherm shows four main facies reflecting distinct growth stages from the base to the top: (1) the basal bioclastic beds, (2) the core facies formed of framestone comprising rugose corals, lithistid sponges, fistuliporid bryozoans and microbial boundstone, (3) the crest facies with large colonies of cerioid rugose corals and chaetetid sponges, and …
Effects Of Phenolic Acids On Gastrointestinal Smooth Muscle Complications In Streptozotocine-Induced Diabetic Rats, Nurcan Bektaş, Yusuf Öztürk
Effects Of Phenolic Acids On Gastrointestinal Smooth Muscle Complications In Streptozotocine-Induced Diabetic Rats, Nurcan Bektaş, Yusuf Öztürk
Turkish Journal of Medical Sciences
To identify the effects of antioxidants on gastrointestinal smooth muscle complications in 6-week streptozotocine (STZ)-induced diabetic rats. Materials and methods: The following steps were carried out: 1. Three weeks after STZ injection, saline and 10 mg/kg p-OH benzoic, protocatechic, and gallic acids were separately administered to the rat groups every day for 3 weeks. 2. The responses of the fundus and ileum to agonists were recorded using isolated organ bath experiments. Results: Diabetic smooth muscle complications developed in the diabetic rats. The responses of the ileum to acetylcholine increased whereas the responses of the fundus to serotonine decreased in the …
Effects Of Long-Term Passive Smoking On The Vascular Endothelial Growth Factor And Apoptosis Marker Expression In The Retina And Choroid: An Experimental Study, Sema Dündar, Fati̇h Özcura, İbrahi̇m Meteoğlu, Mehmet Erkut Kara
Effects Of Long-Term Passive Smoking On The Vascular Endothelial Growth Factor And Apoptosis Marker Expression In The Retina And Choroid: An Experimental Study, Sema Dündar, Fati̇h Özcura, İbrahi̇m Meteoğlu, Mehmet Erkut Kara
Turkish Journal of Medical Sciences
To investigate the effects of smoking, reported as a risk factor for age related macular degeneration (ARMD), on the vascular endothelial growth factor (VEGF) expression and apoptosis in the retina and choroid of rats. Materials and methods: This experimental study included 38 Sprague-Dawley rats. The rats were randomly assigned into 4 groups. Groups 1 (males) and 2 (females) were exposed to smoke beginning on day 21 after birth, whereas groups 3 (males) and 4 (females) were not exposed to smoke. At the end of the fourth month, the right eyes of all of the rats were enucleated. Immunohistochemical analysis was …
Effect Of Dietary Β-Sitosterol On Fecal Bacterial And Colonic Biotransformation Enzymes In 1,2-Dimethylhydrazine–Induced Colon Carcinogenesis, Albert Baskar Arul, Khalid Al Numair, Mohammed Al Saif, Ignacimuthu Savarimuthu
Effect Of Dietary Β-Sitosterol On Fecal Bacterial And Colonic Biotransformation Enzymes In 1,2-Dimethylhydrazine–Induced Colon Carcinogenesis, Albert Baskar Arul, Khalid Al Numair, Mohammed Al Saif, Ignacimuthu Savarimuthu
Turkish Journal of Medical Sciences
The present study was designed to investigate the modulatory effect of \beta-sitosterol administration on 1,2-dimethylhydrazine (DMH)-induced fecal bacterial and colonic biotransformation enzyme activities. Materials and methods: The chemopreventive potential of \beta-sitosterol in colon carcinogenesis was assessed by injecting DMH (20 mg/kg body weight) subcutaneously into male Wistar rats and supplementing with \beta-sitosterol throughout the experimental period of 16 weeks at 3 different doses (5, 10, and 20 mg/kg body weight). Results: Amplified activities of fecal bacterial (\beta-glucuronidase, \beta-glucosidase, \beta-galactosidase, nitroreductase, hyaluronate lyase, and sulfatase) and colonic biotransformation (\beta-glucuronidase, \beta-glucosidase, \beta-galactosidase, and nitroreductase) enzymes were considered hallmarks of colon carcinogenesis. DMH-induced …
Hepatoprotective Effect Of Vitamins C And E Against Gasoline Vapor-Induced Liver Injury In Male Rats, Friday Effiong Uboh, Patrick Ekong Ebong, Henry Dan Akpan, Itoro Friday Usoh
Hepatoprotective Effect Of Vitamins C And E Against Gasoline Vapor-Induced Liver Injury In Male Rats, Friday Effiong Uboh, Patrick Ekong Ebong, Henry Dan Akpan, Itoro Friday Usoh
Turkish Journal of Biology
The protective effect of vitamins C and E against gasoline vapor-induced liver injury was investigated in rats. Liver injury was assessed from the activities of liver function diagnostic indices including serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), gamma glutamyl transferase (\gamma-GT), alkaline phosphatase (ALP) activities, total serum protein (TSP), albumin concentrations, and the histological architectures of the liver tissues of the experimental animals. The results showed that gasoline vapors caused a significant (P = 0.05) higher than that of vitamin C. The results of our study suggest a protective effect of vitamin C and vitamin E against gasoline vapor-induced liver …
Fatty Acid Composition Of The Seeds Of Some Species Of Peucedanum (Kral Otu) From Turkey, Nükhet Akpinar, Sali̇h Görgün, Hüseyi̇n Aşkin Akpulat, Mehmet Ali̇ Akpinar, Apdurahman Aktümsek, Ali̇ Emre Akpinar
Fatty Acid Composition Of The Seeds Of Some Species Of Peucedanum (Kral Otu) From Turkey, Nükhet Akpinar, Sali̇h Görgün, Hüseyi̇n Aşkin Akpulat, Mehmet Ali̇ Akpinar, Apdurahman Aktümsek, Ali̇ Emre Akpinar
Turkish Journal of Biology
The fatty acid compositions of the seeds of Peucedanum ruthenicum, Peucedanum chryseum, Peucedanum palimbioides, Peucedanum obtusifolium, and Peucedanum zedelmeierianum were investigated by gas chromatography (GC). The main fatty acids in the species were found to be palmitic acid (C 16:0, 5.78%-14.68%), oleic acid (C 18:1 \omega-9, 31.28%-68.06%), and linoleic acid (C 18:2 \omega-6, 15.99%-33.74%). Trace amounts of cis-vaccenic acid (C 18:1 \omega-7, 0.82%-1.40%) were found in the seed oils of all of the species investigated.
Calcium Oxalate Crystal Types In Three Oak Species (Quercus L.) In Turkey, Bedri̇ Serdar, Hati̇ce Demi̇ray
Calcium Oxalate Crystal Types In Three Oak Species (Quercus L.) In Turkey, Bedri̇ Serdar, Hati̇ce Demi̇ray
Turkish Journal of Biology
Crystal types from 3 oak species representing 3 different sections of the genus Quercus were identified. Crystals were studied with scanning electron microscopy after localisation by light microscopy. The crystals were composed of calcium oxalate silicates as whewellite (calcium oxalate monohydrate) composites. In Quercus macranthera Fisch. et Mey. subsp. syspirensis (C.Koch) Menitsky (İspir oak) from the white oaks (section Quercus: Leucobalanus), whewellite and trihydrated weddellites coexisted. Axial parenchyma cells included 30 crystal chains with walls as chambers in uniseriate ray cells; some cells had many crystals without any chambers and were small. Long thin crystals were found adherent to the …
Antioxidant Enzymes And Gst Activity In Natural Populations Of Holandriana Holandrii From The Bosna River, Jelena Vrankovic, Svetlana Labus-Blagojevic, Bela Csanyi, Jarmila Makovinska, Olga Cvetkovic, Zoran Gacic, Dusko Blagojevic, Momir Paunovic
Antioxidant Enzymes And Gst Activity In Natural Populations Of Holandriana Holandrii From The Bosna River, Jelena Vrankovic, Svetlana Labus-Blagojevic, Bela Csanyi, Jarmila Makovinska, Olga Cvetkovic, Zoran Gacic, Dusko Blagojevic, Momir Paunovic
Turkish Journal of Biology
Specimens of the freshwater snail Holandriana holandrii affected by different levels of contamination were collected from 3 sites within the Bosna River Basin, i.e. Visoko, Doboj, and Modrica. The activities of antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR), and glutathione-S-transferase (GST) were investigated in order to understand their variation with respect to the pollution status of the sampling locations. The results revealed a significant increase in CAT, GPx, and GST activities in the snails collected from Modrica, suggesting that the animals at this location are exposed to a higher level of oxidative …
Genoprotective Potential Of Brassica Juncea (L.) Czern. Against Mercury-Induced Genotoxicity In Allium Cepa L., Sonia Sharma, Avinash Nagpal, Adarsh Pal Vig
Genoprotective Potential Of Brassica Juncea (L.) Czern. Against Mercury-Induced Genotoxicity In Allium Cepa L., Sonia Sharma, Avinash Nagpal, Adarsh Pal Vig
Turkish Journal of Biology
Brassica juncea (L.) Czern. is an important species of the family Brassicaceae with immense medicinal value. The main goal of this study was to investigate the antigenotoxic effects of different concentrations (0.1%-1.0%) of chloroform extract of B. juncea seeds on mercury-induced (0.75 ppm) genotoxic effects in root cells of Allium cepa. Three different modes of treatment were performed: pretreatment, posttreatment, and simultaneous treatment. For pretreatment, freshly emerged root tips were first treated with different concentrations of seed extract for 3 h and then treated with Hg for 3 h. For posttreatment, the roots were first treated with Hg and then …