Medicine and Health Sciences Commons^™

Evaluation Of The Gastrointestinal Findings Of Nodulocystic Acnepatients During Systemic Isotretinoin Therapy, Duru Tabanlioğlu Onan, Burcu Hazar Tantoğlu, Nuran Alli, Seçi̇l Özkan, Ufuk Samsar, Hasan Tankut Köseoğlu, Refi̇ka Ferda Artüz

Turkish Journal of Medical Sciences

Background/aim: Systemic isotretinoin treatment is an effective treatment modality for nodulocystic acne, the clinical use of which has been associated with reports of adverse events. We conducted a prospective study with the aim of determining the possible gastrointestinal and laboratory findings of nodulocystic acne patients during systemic isotretinoin treatment. Materials and methods: Seventy patients with nodulocystic acne completed the study. During the monthly follow-up visits, liver function tests and lipid profiles of the patients were evaluated and gastrointestinal system complaints were examined. Results: We recorded a significant elevation in liver function tests and lipid profiles of the patients, the most …

Prospects Of Curcumin As An Additive In Storage Solutions: A Study On Erythrocytes, Soumya Ravikumar, Carl Hsieh, Vani Rajashekharaiah

Turkish Journal of Medical Sciences

Background/aim: Curcumin, a naturally occurring antioxidant, shows a wide variety of medicinal properties. The possibility of utilizing curcumin as an additive in storage solutions of blood has not been explored. The purpose of this study was to analyze the effect of curcumin on erythrocytes during storage. Materials and methods: Blood obtained from rats was stored (4 °C) for 20 days in citrate-phosphate-dextrose-adenine-1 solution. Samples were divided into four groups: 1) Controls; 2) Curcumin 10 mM; 3) Curcumin 30 mM; and 4) Curcumin 60 mM. Every fifth day, hemoglobin, superoxide, antioxidant enzymes (superoxide dismutase, catalase, and glutathione peroxidase (GSH-Px)), lipid peroxidation …

Evaluation Of Brain Perfusion In Alzheimer Disease With Perfusion Computed Tomography And Comparison To Elderly Patient Without Dementia, Tüli̇n Yildirim, Başak Karakurum Göksel, Şenay Demi̇r, Nai̇me Tokmak, Meli̇ha Tan

Turkish Journal of Medical Sciences

Background/aim: The aim of this study was to evaluate perfusion computed tomography (PCT) findings in patients with Alzheimer disease and to compare them with those of patients without dementia. Materials and methods: PCT was performed in 35 patients: 20 with Alzheimer disease (mean age, 69.7 ± 5.5 years) and 15 control subjects (mean age, 67.5 ± 3.5 years). Control subjects were elderly individuals with no cognitive problems who were admitted with headaches. All PCT examinations were performed on a 4-slice CT unit. The PCT analysis software program was used to calculate regional cerebral blood flow (rCBF), regional cerebral blood volume …

The Incidence Of 18f-Fdg Pet/Ct Thyroid Incidentalomas Andthe Prevalence Of Malignancy: A Prospective Study, Mi̇ne Şencan Eren, Özhan Özdoğan, Arzu Gedi̇k, Mehmet Ceylan, Meri̇h Güray Durak, Mustafa Seçi̇l, Mehmet Ali̇ Koçdor, Abdurrahman Çömlekçi̇, Hati̇ce Durak

Turkish Journal of Medical Sciences

Background/aim: To determine the prevalence of malignancy in thyroid incidentalomas (TIs) detected by fluorine-18 fluorodeoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT). Materials and methods: 18F-FDG PET/CT images were evaluated prospectively for the presence of thyroid uptake. The patients with a TI were evaluated by an endocrinologist according to the predefined diagnostic algorithm. The final diagnosis was obtained clinically and/or by pathology. Results: TI was detected in 4.2% of 4204 patients. A malignant thyroid nodule was diagnosed in 29% and 33% of the focal and diffuse-focal uptake groups, respectively. However, no malignancy was detected in the diffuse uptake group. The standardized …

Three-Dimensional Cephalometric Norms Of Turkish Cypriots Using Cbctimages Reconstructed From A Volumetric Rendering Program In Vivo, Levent Vahdettin, Seçi̇l Aksoy, Ulaş Öz, Kaan Orhan

Turkish Journal of Medical Sciences

Background/aim: The aim of this study was to create a database of 3D cephalometric measurements of Turkish Cypriot patients using a 3D rendering software program. Materials and methods: The study population comprised 121 subjects who had undergone cone beam CT imaging (CBCT). Invivo 5.1 software was used to generate cephalograms from the CBCT dataset that were then linked to the 3D hard-tissue surface representations. In total, 38 angular and 28 linear widely used measurements were recorded. Results: The results demonstrated that males had significantly larger mean values than females for all linear measurements, except for dentoalveolar parameters (P < 0.05). Additionally, significant differences were found in most of the mandibular anteroposterior and vertical measurements, especially SNB, GoGn/SN, FMA, and MP/SN, between the sexes (P < 0.05). Conclusion: This is the first population-based study to focus solely on Turkish Cypriots' craniofacial anatomy and orthodontic characteristics. The present findings will produce 3D cephalometric normative data for the Cypriot population and will be valuable for oral and maxillofacial surgeons and orthodontists in Cyprus, the UK, Australia, Turkey, and other European countries who treat a large number of Turkish Cypriot patients.

1h-Magnetic Resonance Spectroscopy In First Episode And Chronic Schizophrenia Patients, Duygu Kirtaş, Ruki̇ye Fi̇li̇z Karadağ, Meli̇ke Ceyhan Balci Şengül, Yilmaz Kiroğlu

Turkish Journal of Medical Sciences

Background/aim: The aim of this study was to compare metabolite levels of the dorsolateral prefrontal cortex (DLPFC), anterior cingulate gyrus (ACG), thalamus, and hippocampus in patients with chronic schizophrenia (CSPs) and first psychotic episode patients (FEPs) by the use of magnetic resonance spectroscopy (MRS). Materials and methods: Thirty CSPs, 20 FEPs, and 30 healthy subjects participated in this study. N-Acetylaspartate (NAA), creatine, choline (Cho), and myoinositol levels of the DLPFC, ACG, thalamus, and hippocampus were measured by 1H-MRS. Results: It was determined that the NAA/Cho ratio was lower in both the FEPs and CSPs than the healthy controls in the …

Pacaha Inhibits Proliferation Of Human Cancer Cells In Vitro, Sali̇ha Ekşi̇, Nebahat Ejder, Fati̇h Yilmaz, Ayşe Ertürk, Cemal Sandalli

Turkish Journal of Medical Sciences

Background/aim: The aim of this study was to investigate the antiproliferative and cytotoxic effects of a newly synthesized molecule named paracetamol acetohydroxamic acid (PaCaHa) on human neoplastic cell lines. Materials and methods: A549, CRL 2923, HeLa, and ARPE were treated with various concentrations of PaCaHa and DMSO (vehicle control). The cytotoxic/cytostatic effects of PaCaHa were determined after a 24-h incubation period and compared to the DMSO control. The cytotoxic and antiproliferative effects were determined by the trypan blue dye exclusion and MTT methods. Results: A higher susceptibility to PaCaHA was found in CRL 2923 and HeLa cells, while A549 and …

Determination Of Virulence And Multidrug Resistance Genes With Polymerase Chain Reaction Method In Vancomycin-Sensitive And -Resistant Enterococci Isolated From Clinical Samples*, Şükran Saba Çopur, Fi̇kret Şahi̇n, Juli̇de Sedef Göçmen

Turkish Journal of Medical Sciences

Background/aim: Enterococci play an important role in nosocomial infections. Therefore, this study investigates multidrug resistance (MDR)1 gene areas in the pathogenicity of enterococci and virulence genes in both vancomycin-sensitive enterococci (VSE) and vancomycin-resistant enterococci (VRE) strains. Materials and methods: Virulence genes and MDR genes of enterococci were investigated by polymerase chain reaction (PCR). Results: We evaluated a total of 116 isolates, 93 being VRE and 23 being VSE. In this study, 95.6% of VRE (n = 93) were Enterococcus faecium (n = 89) and 4.3% were E. faecalis (n = 4), while 17.4% of VSE (n = 23) were E. …

Investigating The In Vitro Synergistic Activities Of Several Antibiotic Combinationsagainst Carbapenem-Resistant Acinetobacter Baumannii Isolates, Sevi̇m Yavaş, Meltem Arzu Yetki̇n, Bi̇rcan Kayaaslan, Ali̇ye Baştuğ, Hali̇de Aslaner, Ayşe But, Di̇lek Kanyilmaz, Berri̇n Sari, Esragül Akinci, Hurrem Bodur

Turkish Journal of Medical Sciences

Background/aim: Acinetobacter baumannii (A. baumannii) is one of the most common healthcare-associated infectious agents worldwide. The aim of this study was to investigate the in vitro synergistic activities of several antibiotic combinations against carbapenem-resistant (CR) A. baumannii isolates. Materials and methods: Eighteen CR A. baumannii strains were isolated from the patients who were hospitalized in the intensive care unit between June 2012 and August 2012. The in vitro effects of single and binary combinations of meropenem (MEM), colistin (CST), tigecycline (TGC), and sulbactam (SUL) on these isolates were determined using the Epsilometer test (E-test) method. Results: All 18 isolates were …

Molecular Prevalence And Antibiotics Resistance Pattern Of Class A Bla Ctx-M-1 And Bla Tem-1 Beta Lactamases In Uropathogenic Escherichia Coli Isolates From Pakistan, Hazir Rahman, Madiha Naeem, Ilyas Khan, Jafar Khan, Mohammad Haroon, Fazli Bari, Rahim Ullah, Muhammad Qasim

Turkish Journal of Medical Sciences

Background/aim: Extended spectrum beta lactamase (ESBL) production among E. coli is one of the principal mechanisms that augment resistance to antibiotics. In the current study the molecular detection of class A beta lactamases among uropathogenic Escherichia coli was evaluated. Materials and methods: A total of 355 urine samples were collected from a tertiary care hospital in Peshawar. The ESBL production among E. coli isolates was detected by using the disc synergy diffusion method. Moreover, the molecular detection of bla TEM-1 and bla CTX-M-1 ESBLs, the antibiotic resistance pattern, and the minimum inhibitory concentrations (MICs) were also documented. Results: Among the …

An Investigation Of The Bactericidal Activity Of Chlorhexidine Digluconateagainst Multidrug-Resistant Hospital Isolates, Meli̇ke Eki̇zoğlu, Meral Sağiroğlu, Ekrem Kiliç, Ayşe Gülşen Hasçeli̇k

Turkish Journal of Medical Sciences

Background/aim: Hospital infections are among the most prominent medical problems around the world. Using proper biocides1397645907in an appropriate way is critically important in overcoming this problem. Several reports have suggested that microorganisms may develop resistance or reduce their susceptibility to biocides, similar to the case with antibiotics. In this study we aimed to determine the antimicrobial activity of chlorhexidine digluconate against clinical isolates. Materials and methods: The susceptibility of 120 hospital isolated strains of 7 bacterial genera against chlorhexidine digluconate was determined by agar dilution test, using minimum inhibitory concentration (MIC) values and the EN 1040 Basic Bactericidal Activity Test …

Hepatoprotective And Antidiabetic Activities Of Fraxinus Angustifolia Vahl Extracts In Animal Models: Characterization By High Performance Liquid Chromatography Analysis, Zineb Medjahed, Dina Atman-Kilani, Marie-Laure Fauconnier, Gaetan Richard, Djebbar Atmani

Turkish Journal of Medical Sciences

Background/aim: The present study was designed to explore antidiabetic and hepatoprotective potentials of Fraxinus angustifolia leaf (FAL) and bark (FAB) extracts in vivo. Materials and methods: Streptozotocin (STZ)-induced diabetic rats, pretreated with the extracts (25 and 50 mg/kg), were monitored for fasting blood glucose (FBG) levels. Hepatoprotective potential was examined after injection of an excessive dose of paracetamol (10 g/60 kg) by analysis of biochemical parameters (transaminases, bilirubin), malondialdehyde (MDA) levels, and histological sections. high performance liquid chromatography analysis was also performed for partial characterization. Results: A considerable hypoglycemic effect was noticed 2 h after the STZ-induction, with a higher …

Intestinal Trefoil Factor Increased The Bcl-2 Level In A Necrotizingenterocolitis Neonate Rat Model, Xiaolian Yi, Xiaojun Chang, Jijie Wang, Caixia Yan, Binghong Zhang

Turkish Journal of Medical Sciences

Background/aim: The aim of this study was to investigate the therapeutic effect of intestinal trefoil factor (ITF) on necrotizing enterocolitis (NEC) by observing the pathological changes and detecting the protein level differences in Caspase-3, Bax, and Bcl-2 in an NEC neonate rat model. Materials and methods: A Wistar rat model of NEC was established and 30 one-day-old neonate Wistar rats were randomly divided into three groups including a normal control (group A), NEC rats treated with 0.2 ml physiological saline through intraperitoneal (i.p.) injection (group B), and NEC rats treated with 0.2 mg ITF by i.p injection (group C). Results: …

Paternal Exposure To Low-Dose Lead Acetate: Effect On Implantation Rate,Pregnancy Outcome, And Sex Ratio In Mice, Basima Al-Juboori, Farqad Hamdan, Anam Al-Salihi

Turkish Journal of Medical Sciences

Background/aim: It has been reported from in vivo exposed experimental animals that paternal lead exposure reduces birth rate; however, there is limited evidence to suggest a decrease in the proportion of male births. This study investigated the role of paternal exposure to lower lead acetate doses on early embryonic development (implantation) and the sex ratio of their offspring. Materials and methods: In total 180 Swiss Webster mice were used (60 male and 120 female). The males were divided into 3 groups: G1 (untreated group), G2 (treated daily with 50 μg/kg BW lead acetate), and G3 (treated daily with 100 μg/kg …

First Report On The Distribution Of 3435c>T Abcb1/Mdr1polymorphism In Healthy Bosniak Population, Grazyna Adler, Anna Pawinska-Matecka, Agnieszka Garstka, Nermin Nusret Salkic, Amina Valjevac, Beata Karakiewicz

Turkish Journal of Medical Sciences

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Depression, Anxiety, And Their Relation With Clinical Parametersand Androgen Levels In Hirsute Women, Leyla Irak, Hali̇se Çinar Yavuz, Berçem Ayçi̇çek Doğan, Türkan Mete, Di̇lek Berker, Serdar Güler

Turkish Journal of Medical Sciences

Background/aim: The purpose of this study was to assess the prevalence of anxiety and depression among patients with hirsutism and to evaluate the relationships of anxiety and depression with clinical parameters and androgen levels. Materials and methods: One hundred and seven women with hirsutism were enrolled in the study. All participants completed standardized questionnaires to assess depression (Beck Depression Inventory (BDI)) and anxiety (Beck Anxiety Inventory (BAI)). The Ferriman-Gallwey (FG) scores, body mass indexes (BMIs), homeostatic model assessments of insulin resistance (HOMA-IR), and serum androgen levels of all patients were obtained. Results: Seventy-four of the 107 patients (69.15%) had BDI …

The Relationship Of Mean Platelet Volume With Microalbuminuriain Type 2 Diabetic Patients, Seyi̇t Murat Bayram, Gül Gürsoy, Asli Araz Güngör, Fati̇h Güngör, Eray Atalay

Turkish Journal of Medical Sciences

Background/aim: Activation and size of platelets have been suggested to be involved in the pathogenesis of vascular complications in diabetes mellitus. The purpose of the present study was to investigate the association of mean platelet volume with microalbuminuria in type 2 diabetic patients. Materials and methods: Mean platelet volume levels were investigated in healthy participants and type 2 diabetic patients with and without microalbuminuria. After their mean platelet volume values were compared, correlation of mean platelet volume with sex, duration of diabetes, microalbuminuria, fasting blood glucose, hemoglobin A1c, creatinine clearance, and body mass index was examined. Results: Mean platelet volume …

Total White Blood Cell Count, Liver Enzymes, And Metabolic Syndrome In Schizophrenia, Görkem Karakaş Uğurlu, Semra Ulusoy Kaymak, Mustafa Uğurlu, Si̇bel Örsel, Ali̇ Çayköylü

Turkish Journal of Medical Sciences

Background/aim: Metabolic syndrome (MetS) is an important clinical issue in patients with schizophrenia, but its associated factors are still ambiguous. The aim of the present study was to test whether there are any associations between MetS and white blood cell (WBC) levels, liver enzymes, or sociodemographic variables. Materials and methods: The study included 91 patients with a diagnosis of schizophrenia. We used the National Cholesterol Education Program's Third Adult Treatment Protocol criteria to evaluate MetS in patients. Schizophrenia patients with MetS were compared with those without MetS on the basis of demographic and clinical characteristics and total WBC counts. We …

Hexokinase Ii Localization Is Independent Of Ampk Activation In Hela Cells, Alyssa Brown

Graduate School of Biomedical Sciences Theses and Dissertations

In order for a cancer cell to thrive, it must alter its metabolism to produce the energy needed for rapid growth. Cells accomplish this by the Warburg Effect, or switching metabolism to aerobic glycolysis, where a cell can rapidly break down sugar into ATP, lactic acid and additional byproducts. Hexokinase 2, the enzyme that catalyzes the first committed step of glycolysis, may also be upregulated in cancer cells to increase glucose breakdown. Similar proteins for metabolism are found in both S. cerevisiae and mammalian cells. S. cerevisiae regulates metabolism through glucose repression, by Snf1 (mammalian homolog: AMPK) activation, which aids …

Rapamycin Attenuates Cardiac Fibrosis In Experimental Uremic Cardiomyopathy By Reducing Marinobufagenin Levels And Inhibiting Downstream Pro-Fibrotic Signaling, Steven T. Haller Phd, Yanling Yan Phd, Christopher A. Drummond Phd, Joe Xie Md, Jiang Tian Phd, David J. Kennedy Phd, Victoria Y. Shilova Phd, Zijian Xie Phd, Jiang Liu Phd, Christopher J. Cooper Md, Deepak Malhotra Md, Phd, Joseph I. Shapiro Md, Olga V. Fedorova Phd, Alexei Y. Bagrov Md, Phd

Pharmaceutical Science and Research

Background: Experimental uremic cardiomyopathy causes cardiac fibrosis and is causally related to the increased circulating levels of the cardiotonic steroid, marinobufagenin (MBG), which signals through Na/K‐ATPase. Rapamycin is an inhibitor of the serine/threonine kinase mammalian target of rapamycin (mTOR) implicated in the progression of many different forms of renal disease. Given that Na/K‐ATPase signaling is known to stimulate the mTOR system, we speculated that the ameliorative effects of rapamycin might influence this pathway.

Methods and Results: Biosynthesis of MBG by cultured human JEG‐3 cells is initiated by CYP27A1, which is also a target for rapamycin. It was demonstrated that 1 …

Utility And Origin Of Blood-Based Autoantibodies For Early Detection And Diagnosis Of Neurodegenerative Diseases, Cassandra Demarshall

Graduate School of Biomedical Sciences Theses and Dissertations

Autoantibodies are self-reactive antibodies that have been widely implicated as causal agents of autoimmune diseases. They are found in the blood of all human sera, regardless of age, gender, or the presence or absence of disease. While the underlying reason for their ubiquity remains unknown, it has been hypothesized that they participate in the clearance of blood-borne cell and tissue debris generated in both healthy and diseased individuals on a daily basis. Although much evidence supports this debris clearance role, recent studies also suggest a causal role for autoantibodies in disease. My thesis work has focused on this "cause and/or …

Analyses Of Endothelial Cells And Endothelial Progenitor Cells Released Microvesicles By Using Microbead And Q-Dot Based Nanoparticle Tracking Analysis, Jinju Wang, Yun Zhong, Xiaotang Ma, Xiang Xiao, Chuanfang Cheng, Yusen Chen, Ifeanyi Iwuchukwu, Kenneth J. Gaines, Bin Zhao, Shiming Liu, Jeffrey B. Travers, Ji C. Bihl, Yanfang Chen

Pharmacology and Toxicology Faculty Publications

Accurate analysis of specific microvesicles (MVs) from biofluids is critical and challenging. Here we described novel methods to purify and detect MVs shed from endothelial cells (ECs) and endothelial progenitor cells (EPCs) by combining microbeads with fluorescence quantum dots (Q-dots) coupled nanoparticle tracking analysis (NTA). In the in vitroscreening systems, we demonstrated that 1) anti-CD105 (EC marker) and anti-CD34 (EPC marker) conjugated-microbeads had the highest sensitivity and specificity for isolating respective MVs, which were confirmed with negative controls, CD41 and CD235a; 2) anti-CD144 (EC marker) and anti-KDR (EPC marker) conjugated-Q-dots exhibited the best sensitivity and specificity for their respective …

Sperm Quality And Dna Integrity Of Coke Oven Workers Exposed To Polycyclic Aromatic Hydrocarbons, Hueiwang A. Jeng, Chih Hong Pan, Mu R. Chao, Chien C. Chiu, Guodong Zhou, Chon-Kit Chuo, Wen-Yi Lin

Community & Environmental Health Faculty Publications

Objectives: The objective of this study was to assess sperm quality and deoxyribonucleic acid (DNA) integrity of coke oven workers exposed to polycyclic aromatic hydrocarbons (PAHs) as compared to control subjects. Material and Methods: The coke oven workers (N = 52) and administrative staff (N = 35) of a steel plant served as the exposed and control groups, respectively. Exposure to PAHs was assessed by measuring 1-hydroxypyren. Analysis of sperm quality (concentration, motility, vitality, and morphology) was performed simultaneously with sperm DNA integrity analysis, including DNA fragmentation, denaturation, bulky DNA adducts, and 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxo-dGuo). A questionnaire was conducted to collect …

Evaluation Of Borrelia Burgdorferi Sensu Lato Seroprevalencein The Province Of Bolu, Turkey, Özlem Bucak, Mücahi̇de Esra Koçoğlu, Teki̇n Taş, Firat Zafer Mengeloğlu

Turkish Journal of Medical Sciences

Background/aim: The aim of the present study was to determine the seroprevalence of Borrelia burgdorferi sensu lato in the city center and the province of Bolu, Turkey. Materials and methods: A stratified sampling method was used to determine the study population. A total of 196 blood samples were collected. A questionnaire was completed by each participant in the study. ELISA was performed and positive serologic results were confirmed using western blotting. Data were analyzed statistically using the chi-square test. Results: Seropositivity rates of B. burgdorferi IgM and IgG were determined as 14.8% (29/196) and 13.7% (27/196) respectively by ELISA. A …

The Effects Of Bupivacaine Combined With Different Adjuvants On Block Onset And Duration And On Ion Channel Expressions (Scn9a, Trpm) In Sciatic Nerve Block In Rats, Nurgül Dolu, Levent Şahi̇n, Davut Si̇nan Kaplan, Tuncer Demi̇r, Hasan Şi̇mşek, Mehri̇can Şahi̇n, Beyhan Cengi̇z

Turkish Journal of Medical Sciences

Background/aim: The objective of this experimental study was to examine the effects of epinephrine, dexmedetomidine, and clonidine added as adjuvants to bupivacaine on block onset and effect times, as well as the effects on the Na+ and Ca+2 channel gene expressions, which may indicate cell damage in the sciatic nerve cell membrane. Materials and methods: Rats were divided into five groups: Group S (sham), saline solution; Group B, bupivacaine; Group BD, bupivacaine + dexmedetomidine; Group BC, bupivacaine + clonidine; and Group BE, bupivacaine + epinephrine. For each group, 0.2 mL of local anesthetic was injected into the sciatic nerve bifurcation …

Growth Of Biometric Components And Development Of Refractive Errors In Premature Infants With Or Without Retinopathy Of Prematurity, Özdemi̇r Özdemi̇r, Zühal Özen Tunay, Damla Ergi̇ntürk Acar

Turkish Journal of Medical Sciences

Background/aim: To investigate the biometric components and refractive errors in premature infants with or without retinopathy of prematurity (ROP). Materials and methods: Anterior chamber depth, lens thickness, vitreous length, and axial length were measured with an ultrasound biometer. Cycloplegic refraction was performed by streak skiascopy. Infants with or without ROP were grouped according to postmenstrual age at the time of ocular examination: Group 1, ≤33 weeks; Group 2, 34-37 weeks; Group 3, 38-41 weeks; Group 4, 42-45 weeks; Group 5, ?46 weeks. Results: The mean postnatal age of 894 infants (451 females and 443 males) was 8.7 ± 4.5 weeks, …

Polymorphisms In Androgen Metabolism Genes Ar, Cyp1b1, Cyp19, And Srd5a2 And Prostate Cancer Risk And Aggressiveness In Bulgarian Patients, Darina Kachakova, Atanaska Mitkova, Elenko Popov, Olga Beltcheva, Alexandrina Vlahova, Tihomir Dikov, Svetlana Christova, Vanio Mitev, Chavdar Slavov, Radka Kaneva

Turkish Journal of Medical Sciences

Background/aim: The aim of our study was to elucidate the role of polymorphisms in AR, CYP1B1, CYP19, and SRD5A2 genes for prostate cancer (PC) development in Bulgarian patients. Materials and methods: We genotyped 246 PC patients and 261 controls (155 with benign prostate hyperplasia and 107 healthy population controls) using direct sequencing, PCR-RFLP, SSCP, and fragment analysis. Results: The allele and genotype frequencies of most of the studied variants did not differ significantly between cases and controls. Increased frequencies of the C/C genotype and C allele of rs1056837 in CYP1B1, and genotype 7/8 of the (TTTA)n repeat polymorphism in CYP19, …

Use Of Non-Human Primates In Cocaine Research, Raija H. Bettauer

Experimentation Collection

No abstract provided.

Pharmacological Blockade Of The Calcium Plateau Provides Neuroprotection Following Organophosphate Paraoxon Induced Status Epilepticus In Rats, Laxmikant S. Deshpande, Robert E. Blair, Beverly A. Huang, Kristin F. Phillips, Robert J. Delorenzo

Neurology Publications

Organophosphate (OP) compounds which include nerve agents and pesticides are considered chemical threat agents. Currently approved antidotes are crucial in limiting OP mediated acute mortality. However, survivors of lethal OP exposure exhibit delayed neuronal injury and chronic behavioral morbidities. In this study, we investigated neuroprotective capabilities of dantrolene and carisbamate in a rat survival model of paraoxon (POX) induced status epilepticus (SE). Significant elevations in hippocampal calcium levels were observed 48-h post POX SE survival, and treatment with dantrolene (10 mg/kg, i.m.) and carisbamate (90 mg/kg, i.m.) lowered these protracted calcium elevations. POX SE induced delayed neuronal injury …

Development Of A Translational Model To Screen Medications For Cocaine Use Disorder I: Choice Between Cocaine And Food In Rhesus Monkeys, Amy R. Johnson

Pharmacology and Toxicology Publications

Background

Homologous cocaine self-administration procedures in laboratory animals and humans may facilitate translational research for medications development to treat cocaine dependence. This study, therefore, sought to establish choice between cocaine and an alternative reinforcer in rhesus monkeys responding under a procedure back-translated from previous human studies and homologous to a human laboratory procedure described in a companion paper.

Methods

Four rhesus monkeys with chronic indwelling intravenous catheters had access to cocaine injections (0, 0.043, 0.14, or 0.43 mg/kg/injection) and food (0, 1, 3, or 10 1 g banana-flavored food pellets). During daily 5 h sessions, a single cocaine dose and …