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2014

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Effects Of Physical Activity On Academic Performance & Cognitive Development, Jared Tucker Jan 2014

Effects Of Physical Activity On Academic Performance & Cognitive Development, Jared Tucker

Graduate Research Papers

The purpose of this study is to review literature about the correlation between physical activity and academic performance. It will also be attempted to explain this phenomenon by identifying the impact of exercise on cognitive processes. Studies show that physical activity has a positive linear correlation to academic test scores; specifically in reading and math. Comparisons of FitnessGram Software scores and standardized testing reveal that students' overall level of physical fitness is predictive of academic prowess and that as achievement of healthy zone increased, so did the likelihood of higher academic achievement. The cognitive functions of the brain are believed …

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The Development Of Curriculum For Monticello High School’S General Biology Class, Nicole A. Chambers Jan 2014

The Development Of Curriculum For Monticello High School’S General Biology Class, Nicole A. Chambers

Graduate Research Papers

This curriculum development project focused on Monticello High School's recently-offered General Biology course. The General Biology course was developed to be taught in addition to the traditional college-preparatory biology course and was first offered in the 2012-2013 academic year. The Monticello High School Building Leadership Team made the decision to offer another science credit option for students who needed a life science credit but were not planning to attend a four-year college after graduation. The goals of the course, as outlined by the Building Leadership Team, were for the course to focus on practical life science material that would be …

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Instructors' Perceptions Of Their Own Effectiveness, Abdullah S. Al-Asmari Jan 2014

Instructors' Perceptions Of Their Own Effectiveness, Abdullah S. Al-Asmari

Dissertations and Theses @ UNI

The purpose of this study is to explore the effectiveness of college instructors regarding the role of credibility and nonverbal immediacy in teacher’s effective behavior in the classroom. It seeks to understand instructors’ perceptions of the importance of nonverbal immediacy and its impact on their credibility. A qualitative method was used to examine the perceptions of instructors. A sample table and two graphs provide numeric indicators to illustrate the study’s results. Participants were selected based on a convenience sampling of twelve instructors from a communication department at a mid-sized Midwestern university. Although the sample is one of convenience, efforts were …

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The Environmental Performance Of Biobased Resin Within Phenolic-Urethane Nobake Binders: A Feasibility Study, Ian David Morgan Williams Jan 2014

The Environmental Performance Of Biobased Resin Within Phenolic-Urethane Nobake Binders: A Feasibility Study, Ian David Morgan Williams

Dissertations and Theses @ UNI

The objectives of this research were to investigate the discovery and development of a biobased nobake binder resin for use within the foundry industry toward improved energy efficiency and environmental performance. The performance of polysaccharides within biobased resins was evaluated using industry-accepted methods and standards such as cure rate, tensile-strength development, and casting performance based upon step cone core results. Biobased nobake resins comprised of polysaccharide raw materials cure at a rate that is comparable to conventional nobake sand binders. Upon reaching stripping time, the development of biobased resin reveals a rapid increase in tensile strength, reaching 80% of its …

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Intraindividual Personality Change: Situational Influences, Patterns Of Change, And Frequency-Based Measurement, Carol Tweten Jan 2014

Intraindividual Personality Change: Situational Influences, Patterns Of Change, And Frequency-Based Measurement, Carol Tweten

Dissertations and Theses @ UNI

A large amount of research supports the idea that little change in personality occurs over time (e.g., Caspi & Roberts, 2001). However, changes in an individual’s personality across different situations, known as intraindividual, or within-person, variability, has not received nearly as much empirical attention, in part due to the difficulties inherent in measuring personality across situations. The present study evaluated a measure of within-person variability called frequency-based measurement by comparing it with situational personality expression. The study involved two phases: a one-time measure of trait personality using frequency-based measurement and a five day experience sampling (ESM) study involving repeated measures …

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The Relative Age Effect Among Elite Level Triathletes, Christine Price Jan 2014

The Relative Age Effect Among Elite Level Triathletes, Christine Price

Graduate Research Papers

The purpose of this study is to examine the prevalence of the RAE in elite level triathletes. Is there an overrepresentation of athletes born in the first half of the competition year among elite level triathletes? Is there a difference in the strength of the RAE between males and females, when elite level triathletes are separated by sex?

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Steer Stress Response As Affected By Genotype And Transportation, Megan Wary, Marites Sales, Ben Williamson, Ken Coffey, Michael Looper, Charles Rosenkrans Jr. Jan 2014

Steer Stress Response As Affected By Genotype And Transportation, Megan Wary, Marites Sales, Ben Williamson, Ken Coffey, Michael Looper, Charles Rosenkrans Jr.

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Bovine cytochrome P450 3A28 is responsible for metabolizing ergot alkaloids that cattle ingest when feeding on endophyte-infested tall fescue grass. The objective of this research was to determine associations among genotype, transportation, and stress responses. Angus crossbred steers (n = 47) were genotyped (CC, CG, or GG) for a single-nucleotide polymorphism (C994G) in cytochrome P450 3A28. Genotypes were determined by polymerase chain reaction (PCR) amplification followed by restriction enzyme (Alu1) digestion. Steers were backgrounded on a mixed-cultivar tall fescue pasture. Following the stocker phase, steers were transported to the feedlot for finishing. Stress responses were determined 27 h prior to, …

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Tube Current Modulated Computed Tomography Effective Dose And Size Specific Organ Dose Estimates With Impact: Total Scan Versus Slice By Slice Parameters For Urogram Protocols, David Wayne Byrd Jan 2014

Tube Current Modulated Computed Tomography Effective Dose And Size Specific Organ Dose Estimates With Impact: Total Scan Versus Slice By Slice Parameters For Urogram Protocols, David Wayne Byrd

LSU Master's Theses

Purpose: One of the predominant computed tomography (CT) dosimetry estimation programs, ImPACT, was not designed to estimate organ absorbed dose or effective dose for modern tube current modulated-CT (TCM-CT). ImPACT also only estimates organ doses for a standard adult hermaphrodite mathematical phantom, not for a specific patient. Two methods for calculating size specific TCM-CT organ absorbed dose and non-size dependent TCM-CT effective dose were developed and compared with conventional dose estimation methods. Methods: A sample of 48 TCM-CT urogram procedures was obtained. Patient specific dose was calculated for each data set by two methods. The first method was a summation …

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Development Of An Alternative Bait For The Louisiana Commercial Blue Crab (Callinectes Sapidus) Fishery, Angelle Nicole Anderson Jan 2014

Development Of An Alternative Bait For The Louisiana Commercial Blue Crab (Callinectes Sapidus) Fishery, Angelle Nicole Anderson

LSU Master's Theses

The blue crab (Callinectes sapidus) is a commercially, recreationally, and ecologically important species in Louisiana coastal waters. Louisiana landings account for more than 80% of Gulf of Mexico hard crab landings. In 2012, over 24 thousand metric tons of blue crab were landed in Louisiana with an economic value over $52 million. The blue crab fishery in the northern Gulf of Mexico relies heavily on Atlantic menhaden (Brevoortia tyrannus) for bait, which is a species with stock concerns resulting in approximately a 20% decrease in total allowable catch beginning in 2013. Decreased landings results in increased cost of B. tyrannus …

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Ground Arthropod Abundance In Switchgrass And Diverse Prairie Agroenergy Crops, Stephanie Paape, Libby Torresani, Mark C. Myers Jan 2014

Ground Arthropod Abundance In Switchgrass And Diverse Prairie Agroenergy Crops, Stephanie Paape, Libby Torresani, Mark C. Myers

Undergraduate Student Work

The University of Northern Iowa’s Tallgrass Prairie Center converted corn and soybean fields in the Cedar River Natural Resource Area to four mixes of perennial tallgrass prairie species. Research plots were randomly seeded with one of four treatments of native prairie vegetation including a switchgrass monoculture and a 32-species prairie mix. We studied ground arthropod abundance in Switchgrass and the 32-species prairie mix at various distances from the nearest woody edge using pitfall traps. We hypothesized that a 32-species Prairie mix would support greater numbers of ground arthropods than a Switchgrass monoculture and that ground arthropod abundance would be greater …

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Analysis Of The Canola Lip Mutant, Matthew Rafferty Jan 2014

Analysis Of The Canola Lip Mutant, Matthew Rafferty

Honors Program Theses

Canola (Brassica napus) is a broadleaf agricultural plant grown mainly in regions of the United States and Canada. Its seeds are used to produce edible oil (canola oil) as well as biofuel. The study of mutagenized wild-type Brassica napus seeds in the CAN-TILL project, (http://www.botany.ubc.ca/can-till/), led to the discovery of a phenotype called Lamina epiphylla (LIP ). The lip mutant is characterized by changes in leaf shape that cause the leaves to look trumpeted, among other variations. This research project compared wild-type Brassica napus leaf development with the lamina epiphylla mutant to assess leaf development and to determine the precise …

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Transport And Retention Of Cadmium, Copper, And Lead In Soils: Miscible Displacement Experiments, Nazanin Akrami Jan 2014

Transport And Retention Of Cadmium, Copper, And Lead In Soils: Miscible Displacement Experiments, Nazanin Akrami

LSU Master's Theses

Heavy metal contamination is a major concern for soil and water quality. To quantify their potential hazard, it is crucial to understand their mobility and retention in soils. The source of the problem is anthropogenic activities such as mining, smelting, usage of sewage sludge and fertilizers. The objective of this study was to quantify Cd, Cu and Pb transport and retention in three soils having different properties, and evaluate their competitive influence on the mobility of individual heavy metal. The second objective was to quantify Cd, Cu and Pb retention kinetics in the different soils. This study also investigates the …

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Impression Formation In The Online Amateur Setting: An Examination Of Transgender People, Minjie Li Jan 2014

Impression Formation In The Online Amateur Setting: An Examination Of Transgender People, Minjie Li

LSU Master's Theses

Technology is enhancing our amateur culture, which may provide counter-stereotype depictions. The present study reexamined the continuum model of impression formation by investigating how the mechanism of an amateur technology platform interacts with the depiction of amateur content created by social minority members to redirect people’s cognitive process of impression formation of minority members in the online amateur setting. More specifically, conducting a 2 (Stereotype Depiction) x 2 (Platform) experiment, this study looked at whether amateur platform YouTube encouraged people to go beyond stereotyping to form an counter-stereotypic impression of the mediated transgender person featured in the amateur content. Moreover, …

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Effect Of Gamma Ray Irradiation And Cryopreservation On Pollen Stainability, In Vitro Germination, And Fruit Set In Citrus, Manoj Kundu, Anil Dubey, Manish Srivastav, Surendra Malik, Bhupinder Singh Jan 2014

Effect Of Gamma Ray Irradiation And Cryopreservation On Pollen Stainability, In Vitro Germination, And Fruit Set In Citrus, Manoj Kundu, Anil Dubey, Manish Srivastav, Surendra Malik, Bhupinder Singh

Turkish Journal of Biology

The present work analyzed the stainability and in vitro germinability of the gamma-ray-irradiated fresh and cryopreserved pollens of 3 Citrus species: C. limon, C. limetta, and C. sinensis. Fruit set after pollinating 75 flowers of C. grandis with irradiated and nonirradiated (control) fresh and cryopreserved pollen was also assessed. Results showed that in solid and liquid culture media the highest in vitro germination values were detected in fresh (61.45% and 62.53%, respectively) as well as cryopreserved (53.17% and 55.36%, respectively) C. sinensis nonirradiated pollens. However, at a higher irradiation dose of 500 Gy in both culture media, the minimum reduction …

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Heterotic Grouping And Patterning Of Quality Protein Maize Inbreds Based On Genetic And Molecular Marker Studies, Ambika Rajendran, Arunachalam Muthiah, John Joel, Ponnusamy Shanmugasundaram, Dhandapani Raju Jan 2014

Heterotic Grouping And Patterning Of Quality Protein Maize Inbreds Based On Genetic And Molecular Marker Studies, Ambika Rajendran, Arunachalam Muthiah, John Joel, Ponnusamy Shanmugasundaram, Dhandapani Raju

Turkish Journal of Biology

An investigation was done to study the heterotic grouping and patterning in quality protein maize inbreds. Biochemical screening resulted in the choice of 3 inbreds each with high (UQPM 2, UQPM 4, and UQPM 21) and low (UQPM 18, UQPM 19, and UQPM 20) lysine and tryptophan contents respectively for genetic studies using diallel analysis. UQPM 20 × UQPM 18 was notable as it possessed high standard heterosis and specific combining (sca) effect for grain yield, protein, tryptophan, and lysine. Based on yield sca, the 6 parental inbreds were classified into 3 heterotic groups. Intergroup cross UQPM 20 × UQPM …

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Ex Situ Conservation Of Dianthus Giganteus D’Urv. Subsp. Banaticus (Heuff.) Tutin By In Vitro Culture And Assessment Of Somaclonal Variability By Molecular Markers, Liliana Jarda, Anca Butiuc Keul, Maria Hohn, Andrzej Pedryc, Victoria Cristea Jan 2014

Ex Situ Conservation Of Dianthus Giganteus D’Urv. Subsp. Banaticus (Heuff.) Tutin By In Vitro Culture And Assessment Of Somaclonal Variability By Molecular Markers, Liliana Jarda, Anca Butiuc Keul, Maria Hohn, Andrzej Pedryc, Victoria Cristea

Turkish Journal of Biology

Ex situ conservation of Dianthus giganteus subsp. banaticus was obtained by in vitro culture on different culture media supplemented with phytohormones. Assessment of somaclonal variability over a period of preservation by in vitro culture is required prior to introduction and acclimatization in natural habitats. In this study we used 2 types of molecular markers, ISSR and multilocus SSR markers, which allow comparison of different alleles, to assess the somaclonal variability of endemic taxa Dianthus giganteus subsp. banaticus after a period of 24 months of preservation by in vitro culture. The assessment of somaclonal variability of D. giganteus subsp. banaticus shows …

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In Vitro Micropropagation From Immature Embryos Of The Endemic And Endangered Muscari Muscarimi Medik., Sati Uzun, İskender Parmaksiz, Serkan Uranbey, Semra Mi̇ri̇ci̇, Ercüment Osman Sarihan, Ari̇f İpek, Mehmet Demi̇r Kaya, Bi̇lal Gürbüz, Neşet Arslan, Cengi̇z Sancak, Khalid Mahmood Khawar, Sebahatti̇n Özcan Jan 2014

In Vitro Micropropagation From Immature Embryos Of The Endemic And Endangered Muscari Muscarimi Medik., Sati Uzun, İskender Parmaksiz, Serkan Uranbey, Semra Mi̇ri̇ci̇, Ercüment Osman Sarihan, Ari̇f İpek, Mehmet Demi̇r Kaya, Bi̇lal Gürbüz, Neşet Arslan, Cengi̇z Sancak, Khalid Mahmood Khawar, Sebahatti̇n Özcan

Turkish Journal of Biology

An efficient in vitro bulblet production procedure from immature zygotic embryos of endemic and endangered Muscari muscarimi Medik. was described in the current study. Zygotic embryos were first isolated from immature seeds and cultured on different nutrient media compositions supplemented with various combinations of \alpha-naphthalene acetic acid (NAA), picloram, dicamba, 6-benzylaminopurine (BAP), and thidiazuron (TDZ). The best bulblet regeneration (59 bulblets per explant) was achieved in Murashige and Skoog (MS) medium containing 4 mg/L BAP and 0.5 mg/L NAA after 1 year of culture initiation. Regenerated bulblets were then transferred into MS medium without plant growth regulators for rooting. Bulblets …

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Reactive Dye Decolorization Activity Of Crude Laccase Enzyme From Repeated-Batch Culture Of Funalia Trogii, Özfer Yeşi̇lada, Emre Bi̇rhanli, Si̇nem Ercan, Nesri̇n Özmen Jan 2014

Reactive Dye Decolorization Activity Of Crude Laccase Enzyme From Repeated-Batch Culture Of Funalia Trogii, Özfer Yeşi̇lada, Emre Bi̇rhanli, Si̇nem Ercan, Nesri̇n Özmen

Turkish Journal of Biology

The effect of various factors on dye decolorization activity of crude laccase enzyme from repeated-batch culture of Funalia trogii ATCC 200800 to obtain rapid and high decolorization activity against Reactive Black 5 and Reactive Blue 171 dyes was investigated. All conditions used were important for dye decolorizing activity of this crude laccase enzyme. The optimum pH of decolorization was tested at 30 °C and it was around 3.0. This activity was highly reduced at pH 4.5-6.0. On the other hand, the optimum temperature for rapid and high decolorization was 50 °C. Importantly, the decolorization rate of crude laccase at pH …

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Cloning, Expression, And Characterization Of A Novel Ctp Synthase Gene From Anoxybacillus Gonensis G2, Cemal Sandalli, Ayşegül Saral, Serdar Ülker, Hakan Karaoğlu, Ali̇ Osman Beldüz, Ayşegül Çopur Çi̇çek Jan 2014

Cloning, Expression, And Characterization Of A Novel Ctp Synthase Gene From Anoxybacillus Gonensis G2, Cemal Sandalli, Ayşegül Saral, Serdar Ülker, Hakan Karaoğlu, Ali̇ Osman Beldüz, Ayşegül Çopur Çi̇çek

Turkish Journal of Biology

The cytidine-5'-triphosphate (CTP) synthase (EC 6.4.3.2) gene (pyrG) was cloned and sequenced from the thermophilic bacterium Anoxybacillus gonensis G2 (Ago). The gene is 1590 bp in length and encodes a protein of 530 amino acids, with a molecular mass of 59.5 kDa. The amino acid sequence of CTP synthase shares approximately 90%-94% similarity to Bacillus sp., and it belongs to the triad glutamine amidotransferases, which utilize a Cys-His-Glu triad for activity. Multiple sequence alignments revealed that the enzyme includes conserved amino acids responsible for catalytic activity and the binding of a divalent metal ion (Mg^{+2}). AgoCTP synthase (AgoG2CTPs) was overproduced …

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Study Of In Vitro Anther Culture In Selected Genotypes Of Genus Capsicum, Dorota Olszewska, Anna Kisiala, Aleksandra Niklas-Nowak, Pawel Nowaczyk Jan 2014

Study Of In Vitro Anther Culture In Selected Genotypes Of Genus Capsicum, Dorota Olszewska, Anna Kisiala, Aleksandra Niklas-Nowak, Pawel Nowaczyk

Turkish Journal of Biology

The combined effect of anther incubation time on CP induction medium (12, 14, and 16 days) and 2 concentrations of kinetin in R1 regeneration medium (0.1 and 0.3 mg/L) on the effectiveness of androgenesis was investigated in 17 genotypes of Capsicum grown in Poland. Plant material consisted of breeding lines and intraspecific hybrids of C. annuum; the species of C. frutescens, C. chinense, and C. baccatum var. pendulum; interspecific hybrids F_1 (C. frutescens × C. chinense) and F_1 (C. frutescens × C. baccatum); and doubled haploid lines derived from the hybrids. The results of the tested variants of the experiment …

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A Simple Guanidinium Isothiocyanate Method For Bacterial Genomic Dna Isolation, Erkan Mozi̇oğlu, Müslüm Akgöz, Candan Tamerler, Zühtü Tanil Kocagöz Jan 2014

A Simple Guanidinium Isothiocyanate Method For Bacterial Genomic Dna Isolation, Erkan Mozi̇oğlu, Müslüm Akgöz, Candan Tamerler, Zühtü Tanil Kocagöz

Turkish Journal of Biology

A high-quality and low-cost genomic DNA isolation method is needed for use in microbiology laboratories. In this study, we developed a new modified guanidinium isothiocyanate method to isolate DNA from Escherichia coli, Salmonella enterica subsp. enterica serotype Typhimurium, and Staphylococcus aureus and compared it with 4 other DNA isolation methods. The results show that the modified guanidinium isothiocyanate method developed in our laboratory is simple, fast, and inexpensive and yields DNA whose quality and quantity are similar to that of 2 commercial extraction kits but far better than 2 conventional DNA extraction methods used for comparison.

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Temperature-Induced Stress Response In Lymantria Dispar Neurosecretory Neurons, Larisa Ilijin, Milena Vlahovic, Vesna Peric Mataruga, Ivana Kmetic, Anja Gavrilovic, Dragana Matic, Marija Mrdakovic Jan 2014

Temperature-Induced Stress Response In Lymantria Dispar Neurosecretory Neurons, Larisa Ilijin, Milena Vlahovic, Vesna Peric Mataruga, Ivana Kmetic, Anja Gavrilovic, Dragana Matic, Marija Mrdakovic

Turkish Journal of Biology

The release of neurosecretory material from A2 neurosecretory neurons (NSNs) was stimulated in Lymantria dispar fourth instar caterpillars exposed to a temperature of 35 °C for 1, 12, and 24 h, as well as those allowed recover after exposure (12 h at 35 °C, then 12 h at 23 °C). The levels of 2 protein forms with the same molecular mass as bombyxin (3-4 and 4-5 kDa) increased with prolonged exposure to 35 °C. The second band was present only in the groups exposed to this stressor. There was intensified synthetic activity and a low level of secretion in L2' …

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A Preliminary Proteomic Evaluation Of Smooth Muscle Cells In Thoracic Aortic Aneurysms, Ceyda Açilan Ayhan, Betül Baykal, Müge Serhatli, Ömer Kaçar, Zelal Adigüzel, Serpi̇l Taş, Kemal Baysal, Ahmet Tarik Baykal Jan 2014

A Preliminary Proteomic Evaluation Of Smooth Muscle Cells In Thoracic Aortic Aneurysms, Ceyda Açilan Ayhan, Betül Baykal, Müge Serhatli, Ömer Kaçar, Zelal Adigüzel, Serpi̇l Taş, Kemal Baysal, Ahmet Tarik Baykal

Turkish Journal of Biology

Aortic aneurysm is characterized as localized degeneration of the aorta leading to advanced weakening and widening of the vessel. While the exact mechanisms have yet to be determined, current studies indicate that the degradation of extracellular matrix (ECM) proteins and apoptosis of vascular smooth muscle cells (SMCs) may result in extendibility, dilation, and rupture of the vessel. Within the aortic wall, SMCs are implicated as key components involved in disease development, as numerous molecular changes have been reported to occur. Most current studies involve either investigation of proteins constituting a group or pathway in SMCs, or analyses of the whole …

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Cover And Contents Jan 2014

Cover And Contents

Turkish Journal of Biology

No abstract provided.

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Effects Of Different Genotypes And Gamma Ray Doses On Haploidization Using Irradiated Pollen Technique In Squash, Gökhan Baktemur, Namik Kemal Yücel, Hatira Taşkin, Songül Çömlekçi̇oğlu, Saadet Büyükalaca Jan 2014

Effects Of Different Genotypes And Gamma Ray Doses On Haploidization Using Irradiated Pollen Technique In Squash, Gökhan Baktemur, Namik Kemal Yücel, Hatira Taşkin, Songül Çömlekçi̇oğlu, Saadet Büyükalaca

Turkish Journal of Biology

Fourteen genotypes and 3 different gamma ray doses were tested to develop an efficient haploidization protocol in squash. For this purpose, male flowers collected 1 day before anthesis were irradiated with 150, 200, and 300 Gy gamma ray doses, and female flowers were pollinated with the irradiated pollens the next day. In the first year of the study, 1858 embryos were obtained from 219 fruits. While 1358 of these were found in fruits irradiated with a 150 Gy gamma dose, the remaining 500 embryos were found in fruits irradiated with 200 Gy. From fruits irradiated with 150 and 200 Gy …

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Inhibitory Effect Of Enterocin Kp In Combination With Sublethal Factors On Escherichia Coli O157:H7 Or Salmonella Typhimurium In Bhi Broth And Uht Milk, Zeli̇ha Yildirim, Yaseli̇n İlk, Meti̇n Yildirim, Kader Tokatli, Ni̇lgün Öncül Jan 2014

Inhibitory Effect Of Enterocin Kp In Combination With Sublethal Factors On Escherichia Coli O157:H7 Or Salmonella Typhimurium In Bhi Broth And Uht Milk, Zeli̇ha Yildirim, Yaseli̇n İlk, Meti̇n Yildirim, Kader Tokatli, Ni̇lgün Öncül

Turkish Journal of Biology

The effects of physical and chemical sublethal treatments on the antibacterial activity of enterocin KP produced by Enterococcus faecalis KP against Escherichia coli O157:H7 and Salmonella Typhimurium were investigated. Enterocin KP was not active against intact cells of E. coli O157:H7 or S. Typhimurium. However, the use of enterocin KP together with ethylenediaminetetraacetic acid (50 mM), sodium tripolyphosphate (50 mM), sublethal heating (60 °C for 10 min), cold shock (-20 °C for 2 h), or acid stress (mixture of 40% lactic acid, 16% propionic acid, 16% acetic acid) in BHI medium decreased the cell number of E. coli O157:H7 by …

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Cover And Contents Jan 2014

Cover And Contents

Turkish Journal of Biology

No abstract provided.

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Squalestatin-Induced Production Of Taxol And Baccatin In Cell Suspension Culture Of Yew (Taxus Baccata L.), Sayed Asadollah Amini, Leila Shabani, Ladan Afghani, Zohreh Jalalpour, Majid Sharifi-Tehrani Jan 2014

Squalestatin-Induced Production Of Taxol And Baccatin In Cell Suspension Culture Of Yew (Taxus Baccata L.), Sayed Asadollah Amini, Leila Shabani, Ladan Afghani, Zohreh Jalalpour, Majid Sharifi-Tehrani

Turkish Journal of Biology

Various elicitors have already been reported to enhance the production of taxol and related taxanes. In this study, effects of a fungal metabolite, squalestatin, on production of taxol and baccatin III were studied. Expressions of 4 key involved genes, ts, dbat, bapt, and dbtnbt, in suspension cultures of Taxus baccata were also detected using qPCR. Results showed that application of squalestatin significantly increased taxol and baccatin III yields. Increased expressions of the genes were in accordance with measures of taxol and baccatin accumulations in cells and medium. Production of H_{2}O_{2} has significant positive correlations with both gene expression and taxanes, …

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Cobalt Induces Alterations In Serum Parameters Associated With Bone Metabolism In Male Adult Rat, Ali Asghar Moshtaghie, Pedram Malekpouri, Elham Moshtaghie, Farhang Rahnamaie Jan 2014

Cobalt Induces Alterations In Serum Parameters Associated With Bone Metabolism In Male Adult Rat, Ali Asghar Moshtaghie, Pedram Malekpouri, Elham Moshtaghie, Farhang Rahnamaie

Turkish Journal of Biology

The intention of this study was to investigate the toxic effect of cobalt on the bone metabolism of rats, including calcium, inorganic phosphorus, and bone-specific alkaline phosphatase of serum during short- and long-term experiments. Rats were injected intraperitoneally (IP) with either 16 mg kg^{-1} BW of cobalt for 5 and 10 days or 6 mg kg^{-1} BW for 20 and 40 days. It was found that IP administrations of cobalt could increase all serum parameters associated with bone metabolic processes. The observed effect was greatest for 16 mg kg^{-1} BW when used for 10 continuous days. By using gel filtration …

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Nkx3.1 Binding To Gpx2, Qscn6, Sod1, And Sod2 Promoters Contributes To Antioxidant Response Regulation Via Transactivation, Bi̇lge Debeleç Bütüner, Kemal Sami̇ Korkmaz Jan 2014

Nkx3.1 Binding To Gpx2, Qscn6, Sod1, And Sod2 Promoters Contributes To Antioxidant Response Regulation Via Transactivation, Bi̇lge Debeleç Bütüner, Kemal Sami̇ Korkmaz

Turkish Journal of Biology

NKX3.1 is a prostate-specific transcription factor that is regulated by the androgen receptor in the presence of androgens. It functions as a tumor suppressor against the development of prostatic intraepithelial neoplasia and primary prostate tumors. Here, a recognized approach combining in silico analysis and chromatin immunoprecipitation (ChIP) was used to identify the genes directly regulated by NKX3.1 promoter binding in LNCaP cells. Quantitative PCR using ChIP-captured DNAs as templates verified a subset of NKX3.1 binding motifs. Thus, in the presence of androgens, significant NKX3.1 binding occurs to promoters of GPX2, QSCN6, SOD1, and SOD2 genes that contribute to oxidative stress …

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