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Full-Text Articles in Medicine and Health Sciences

Analysis Of Ca²⁺ Mobilization Of Nanosecond Pulses In Cells, Iurii Semenov Jan 2016

Analysis Of Ca²⁺ Mobilization Of Nanosecond Pulses In Cells, Iurii Semenov

Bioelectrics Publications

Exposure to nanosecond electric pulses (nsEPs) evokes transient rise of cytosolic free Ca²⁺ concentration ([Ca²⁺]i) in the cells. We quantified the external Ca²⁺ uptake, intracellular Ca²⁺ release and uncover interplay of these processes for CHO-K1 cells upon exposure to single 60 ns pulse in the range of amplitudes from 0 to 30 kV/cm. NsEPs are distinguished by the ability to electroporate intracellular membranes. We studied how duration of nsEPs is related to efficiency of intracellular membranes electroporation comparing ability of single 300-, 60- and 10 ns pulses to recruit Ca²⁺ from endoplasmic reticulum (ER) in respect to the uptake of …


Activation Of Dna Pattern Recognition Receptors After Plasmid Electrotransfer In Melanoma Cells And Tumors, Loree Heller, Masa Bosnjak, Katarina Znidar, Maja Cemazar Jan 2016

Activation Of Dna Pattern Recognition Receptors After Plasmid Electrotransfer In Melanoma Cells And Tumors, Loree Heller, Masa Bosnjak, Katarina Znidar, Maja Cemazar

Bioelectrics Publications

(First sentence) In vivo electroporation or electrotransfer, the application of controlled electric pulses, enhances delivery of plasmid DNA to a wide variety of healthy tissues as well as tumor types.


A Dielectric Rod Antenna For Picosecond Pulse Stimulation Of Neurological Tissue, Ross A. Petrella, Karl H. Schoenbach, Shu Xiao Jan 2016

A Dielectric Rod Antenna For Picosecond Pulse Stimulation Of Neurological Tissue, Ross A. Petrella, Karl H. Schoenbach, Shu Xiao

Bioelectrics Publications

A dielectrically loaded wideband rod antenna has been studied as a pulse delivery system to subcutaneous tissues. Simulation results applying 100-ps electrical pulse show that it allows us to generate a critical electric field for biological effects, such as brain stimulation, in the range of several centimeters. In order to reach the critical electric field for biological effects, which is similar to 20 kV/cm, at a depth of 2 cm, the input voltage needs to be 175 kV. The electric field spot size in the brain at this position is similar to 1 cm(2). Experimental studies in free space with …


Large Genomic Differences Between Moraxella Bovoculi Isolates Acquired From The Eyes Of Cattle With Infectious Bovine Keratoconjunctivitis Versus The Deep Nasopharynx Of Asymptomatic Cattle, Aaron M. Dickey, John D. Loy, James L. Bono, Timonthy P. L. Smith, Mike D. Apley, Brian V. Lubbers, Keith D. Dedonder, Sarah F. Capik, Robert L. Larson, Brad J. White, Jochen Blom, Carol G. Chitko-Mckown, Michael L. Clawson Jan 2016

Large Genomic Differences Between Moraxella Bovoculi Isolates Acquired From The Eyes Of Cattle With Infectious Bovine Keratoconjunctivitis Versus The Deep Nasopharynx Of Asymptomatic Cattle, Aaron M. Dickey, John D. Loy, James L. Bono, Timonthy P. L. Smith, Mike D. Apley, Brian V. Lubbers, Keith D. Dedonder, Sarah F. Capik, Robert L. Larson, Brad J. White, Jochen Blom, Carol G. Chitko-Mckown, Michael L. Clawson

School of Veterinary and Biomedical Sciences: Faculty Publications

Moraxella bovoculi is a recently described bacterium that is associated with infectious bovine keratoconjunctivitis (IBK) or “pinkeye” in cattle. In this study, closed circularized genomes were generated for seven M. bovoculi isolates: three that originated from the eyes of clinical IBK bovine cases and four from the deep nasopharynx of asymptomatic cattle. Isolates that originated from the eyes of IBK cases profoundly differed from those that originated from the nasopharynx of asymptomatic cattle in genome structure, gene content and polymorphism diversity and consequently placed into two distinct phylogenetic groups. These results suggest that there are genetically distinct strains of M. …


Human Oocytes And Embryos Viewed By Time-Lapse Videography, And The Development Of An Embryo Deselection Model, Yanhe Liu Jan 2016

Human Oocytes And Embryos Viewed By Time-Lapse Videography, And The Development Of An Embryo Deselection Model, Yanhe Liu

Theses: Doctorates and Masters

Despite its wide application today, in vitro fertilization (IVF) treatment continues to have relatively low efficacy, largely due to inaccuracy in selecting the best quality embryo(s) from the cohort for transfer. Novel methodologies for improved selection are being developed, and time-lapse observation of human embryos is gaining increasing popularity due to the more detailed morphokinetic information obtained plus uninterrupted culture conditions. The morphokinetic information enables the use of quantitative timings in developmental milestones of embryos and qualitative measures of abnormal biological events, to assist embryo selection/deselection. This project aimed to identify current limitations in the use of such measures and …


Fine Particulate Air Pollution And Hospital Emergency Room Visits For Respiratory Disease In Urban Areas In Beijing, China, In 2013, Qin Xu, Xia Li, Shuo Wang, Chao Wang, Fangfang Huang, Qi Gao, Lijuan Wu, Lixin Tao, Jin Guo, Wei Wang, Xiuhua Guo Jan 2016

Fine Particulate Air Pollution And Hospital Emergency Room Visits For Respiratory Disease In Urban Areas In Beijing, China, In 2013, Qin Xu, Xia Li, Shuo Wang, Chao Wang, Fangfang Huang, Qi Gao, Lijuan Wu, Lixin Tao, Jin Guo, Wei Wang, Xiuhua Guo

Research outputs 2014 to 2021

Background

Heavy fine particulate matter (PM2.5) air pollution occurs frequently in China. However, epidemiological research on the association between short-term exposure to PM2.5 pollution and respiratory disease morbidity is still limited. This study aimed to explore the association between PM2.5 pollution and hospital emergency room visits (ERV) for total and cause-specific respiratory diseases in urban areas in Beijing. Methods Daily counts of respiratory ERV from Jan 1 to Dec 31, 2013, were obtained from ten general hospitals located in urban areas in Beijing. Concurrently, data on PM2.5 were collected from the Beijing Environmental Protection Bureau, …


Effects Of Resveratrol On The Alterations Of Cavernosal Enos And Lox-1 Expression In The Hypercholesterolemic Condition: A Preliminary Study, Ozan Bozkurt, Aykut Kefi̇, Ömer Demi̇r, Nergi̇s Murat, Sedef Gi̇dener, Ahmet Adi̇l Esen Jan 2016

Effects Of Resveratrol On The Alterations Of Cavernosal Enos And Lox-1 Expression In The Hypercholesterolemic Condition: A Preliminary Study, Ozan Bozkurt, Aykut Kefi̇, Ömer Demi̇r, Nergi̇s Murat, Sedef Gi̇dener, Ahmet Adi̇l Esen

Turkish Journal of Medical Sciences

Background/aim: The aim of this study was to determine the effects of resveratrol on the alterations of cavernosal eNOS and LOX-1 mRNA expression in the hypercholesterolemic condition. Materials and methods: Twenty-one New Zealand white male rabbits were separated into three groups. Rabbits were fed with a normal dietary intake for the control group and a 2% cholesterol diet for the hypercholesterolemia and resveratrol groups for 6 weeks. Resveratrol 4 mg/kg daily was administered for the resveratrol group. Cavernosal LOX-1 and eNOS mRNA expressions were determined with real-time RT-PCR in all groups. The statistical analysis was performed with the Kruskal?Wallis and …


Study Of Mouse Induced Pluripotent Stem Cell Transplantation Intowistar Albino Rat Cochleae After Hair Cell Damage*, Mustafa Kürşat Gökcan, Selçuk Mülazi̇moğlu, Emre Ocak, Pinar Can, Murat Çalişkan, Ömer Beşalti, Serpi̇l Di̇zbay Sak, Gülşah Kaygusuz Jan 2016

Study Of Mouse Induced Pluripotent Stem Cell Transplantation Intowistar Albino Rat Cochleae After Hair Cell Damage*, Mustafa Kürşat Gökcan, Selçuk Mülazi̇moğlu, Emre Ocak, Pinar Can, Murat Çalişkan, Ömer Beşalti, Serpi̇l Di̇zbay Sak, Gülşah Kaygusuz

Turkish Journal of Medical Sciences

Background/aim: As the regeneration capacity of hair cells is limited, inner ear stem cell therapies hold promise. Effects of mouse induced pluripotent stem cells (IPSCs) on Wistar albino rats (WARs) with hearing impairment were investigated. Materials and methods: Thirty-five adult WARs with normal hearing were divided into 4 groups. Excluding the study group (n = 15), the other three groups served as control groups for ototoxicity and IPSC injection models. IPSC injections were performed via cochleostomy after a retroauricular approach. Auditory functions were evaluated with auditory brainstem responses (ABRs) before and after the injections. After a final hearing assessment the …


Daily Surveillance With Early Warning Scores Help Predicthospital Mortality In Medical Wards, Mi̇ne Durusu Tanriöver, Burçi̇n Halaçli, Bi̇lgi̇n Sai̇t, Serpi̇l Öcal, Arzu Topeli̇ Jan 2016

Daily Surveillance With Early Warning Scores Help Predicthospital Mortality In Medical Wards, Mi̇ne Durusu Tanriöver, Burçi̇n Halaçli, Bi̇lgi̇n Sai̇t, Serpi̇l Öcal, Arzu Topeli̇

Turkish Journal of Medical Sciences

Background/aim: To analyze the potency of a modified early warning score (EWS) to help predict hospital mortality when used for surveillance in nonacute medical wards. Materials and methods: Patients in internal medicine wards were prospectively recruited. First, highest, and last scores; and mean daily score recordings and values were recorded. Nurses calculated scores for each patient upon admission and every 4 h. The last score was the score before death, discharge, or transfer to another ward. The highest scores in total and for each single parameter were used for analysis. Results: Fifty-nine percent of 182 recruited patients had recordings eligible …


Altering Metabolism In The Tumor Microenvironment To Enhance Anti-Tumor Immunity For Lung Cancer, Cara Schafer Jan 2016

Altering Metabolism In The Tumor Microenvironment To Enhance Anti-Tumor Immunity For Lung Cancer, Cara Schafer

All ETDs from UAB

Overcoming cancer cell immune escape represents a fundamental obstacle in the treatment of cancer. Indoleamine 2,3-dioxygenase (IDO)-expressing myeloid-derived suppressor cells (MDSCs) are known to induce oxidative stress and alter amino acid metabolism within the tumor microenvironment (TME). The tryptophan (Trp)-catabolizing action of IDO not only promotes T cell tolerance and evasion but is also associated with impaired quality of life in cancer patients. We have previously demonstrated that a novel combination therapy, consisting of MDSC-depleting gemcitabine and a superoxide dismutase mimetic, prolonged survival of tumor-bearing mice by enhancing CD8+ memory T cell metabolism. We identify that combination therapy inhibits IDO …


What's Up, Dut? Help, Help I'M Being Derepressed; The Great Derepression Of Sapis Or How I Learned To Stop Worrying And Love Mobilization, Rosanne Lorin Lee Hill Jan 2016

What's Up, Dut? Help, Help I'M Being Derepressed; The Great Derepression Of Sapis Or How I Learned To Stop Worrying And Love Mobilization, Rosanne Lorin Lee Hill

All ETDs from UAB

Staphylococcus aureus is known to cause disease in both human and animal populations. Many of the virulence factors important for S. aureus pathogenesis are found on mobile genetic elements known as S. aureus pathogenicity islands (SaPIs). SaPIs can transduce into surrounding cells, giving those cells the ability to produce virulence factors. Derepression allows SaPIs to be excised from S. aureus genome to initiate mobilization. Derepressors have been identified for multiple SaPIs, but it remains unknown if the same SaPI can be derepressed by multiple derepressors. It has been shown that SaPIbov1 can be derepressed by the type 1 dUTPase from …


Examination Of 4-Hydroxy Tamoxifen- And Bh3 Mimetic-Induced Cell Death Pathways In Glioblastoma And Malignant Peripheral Nerve Sheath Tumor Cells, Christopher Dillon Graham Jan 2016

Examination Of 4-Hydroxy Tamoxifen- And Bh3 Mimetic-Induced Cell Death Pathways In Glioblastoma And Malignant Peripheral Nerve Sheath Tumor Cells, Christopher Dillon Graham

All ETDs from UAB

Glioblastoma (GBM) is the most common and aggressive human primary malignant brain tumor with a 5-year survival rate of less than 5%. GBM is highly invasive, rendering complete surgical resection impossible. Additionally, this tumor type is relatively insensitive to radiotherapy. Thus, effective chemotherapeutic options present the last line of defense for GBM patients. Unfortunately, nearly 50% of all GBM tumors are resistant to the current chemotherapeutic standard, temozolomide (TMZ). TMZ is a DNA alkylating agent that promotes apoptosis via DNA damage. Resistance to TMZ-induced cell death is attributed to expression of the DNA repair enzyme O6-methylguanine-DNA methyltransferase (MGMT) resultant from …


Neonatal Microbial Exposure And Its Effects On The B Cell Repertoire And Development Of Respiratory Allergies, Preeyam Patel Jan 2016

Neonatal Microbial Exposure And Its Effects On The B Cell Repertoire And Development Of Respiratory Allergies, Preeyam Patel

All ETDs from UAB

The incidence of asthma has increased dramatically among children living in developed countries, and the hygiene hypothesis suggests that this is the result of decreased neonatal exposure to microbes. Microbes and allergens can bear similar antibody-reactive epitopes, and exposure to microbes bearing these epitopes during early life can permanently alter the frequency and clonality of the antigen-specific B cell repertoire. The objective of this dissertation was to determine if B cells stimulated by microbes during early life could suppress the development of respiratory allergies during adult life. Both Streptococcus pneumoniae (pneumococcus) and house dust mite (HDM) express antibody-reactive phosphorylcholine (PC) …


Colistin Efficacy In The Treatment Of Multidrug-Resistant And Extremelydrug-Resistant Gram-Negative Bacterial Infections*, Çi̇ğdem Banu Çeti̇n, Deni̇z Özer Türk, Şebnem Şenol, Gönül Di̇nç Horasan, Özlem Tünger Jan 2016

Colistin Efficacy In The Treatment Of Multidrug-Resistant And Extremelydrug-Resistant Gram-Negative Bacterial Infections*, Çi̇ğdem Banu Çeti̇n, Deni̇z Özer Türk, Şebnem Şenol, Gönül Di̇nç Horasan, Özlem Tünger

Turkish Journal of Medical Sciences

Background/aim: Colistin is used as a salvage therapy for multidrug-resistant and extremely drug-resistant gram-negative bacterial infections. Our aim was to evaluate colistin efficiency and toxicity in the treatment of these resistant gram-negative bacterial infections. Materials and methods: This is a retrospective study carried out in a tertiary care hospital during 2011-2013. Study data were collected from the medical records and consultations of the infectious diseases clinic. Results: The study group included 158 patients with nosocomial infections and 136 (86.1%) of them were hospitalized in the ICU. Respiratory tract infections were the most commonly observed ones (n = 103, 65.2%). The …


Determination Of Reference Range With The Indirect Method Of The 25-Hydroxyvitamind3 Test In The Balıkesir Region, Turkey, Medi̇ne Alpdemi̇r, Mehmet Fati̇h Alpdemi̇r Jan 2016

Determination Of Reference Range With The Indirect Method Of The 25-Hydroxyvitamind3 Test In The Balıkesir Region, Turkey, Medi̇ne Alpdemi̇r, Mehmet Fati̇h Alpdemi̇r

Turkish Journal of Medical Sciences

Background/aim: The aim of this study is to determine the reference ranges of 25-hydroxyvitamin D3 (25(OH)vitD3) by an indirect method using data obtained from patients over the course of 3 years. Materials and methods: The 25(OH)vitD3 test results of the patients who applied to the medical biochemistry laboratory of Balıkesir State Hospital between the years of 2010 and 2014 were analyzed. Patient data were retrospectively taken from the laboratory information system. The 25(OH)vitD3 levels of patients were examined after exclusion of outliers. Patients were divided into subgroups according to season, sex, and age. The central 95% reference intervals were calculated …


Genotypes And Virulence Factors Of Candida Species Isolated From Oralcavities Of Patients With Type 2 Diabetes Mellitus, Soley Arslan, Ayşe Nedret Koç, Ahmet Ercan Şekerci̇, Fati̇h Tanriverdi̇, Hafi̇ze Sav, Gonca Aydemi̇r, Hali̇t Di̇ri̇ Jan 2016

Genotypes And Virulence Factors Of Candida Species Isolated From Oralcavities Of Patients With Type 2 Diabetes Mellitus, Soley Arslan, Ayşe Nedret Koç, Ahmet Ercan Şekerci̇, Fati̇h Tanriverdi̇, Hafi̇ze Sav, Gonca Aydemi̇r, Hali̇t Di̇ri̇

Turkish Journal of Medical Sciences

Background/aim: This study compared the genotypes and virulence factors of Candida species isolated from oral cavities of healthy individuals and patients with diabetes mellitus (DM). Materials and methods: A total of 142 healthy individuals and 73 diabetic patients participated in this study. Study populations were classified into 4 groups as follows: Group I " Healthy, without caries; Group II " Healthy, with caries; Group III " DM, with caries; Group IV " DM, without caries. Diabetic patients' blood glucose and hemoglobin A1c concentrations were determined. Identification of Candida species was performed with conventional methods. Biofilm production, proteinase, phospholipase, and esterase …


Liporotein-Associated Phospholipase-A2 Can Be A Diagnostic Marker Inthe Early Stage Diagnosis Of Acute Mesenteric Ischemia, Tarik Acar, Sedat Koçak, Başar Cander, Mehmet Ergi̇n, Cesareddi̇n Di̇kmetaş Jan 2016

Liporotein-Associated Phospholipase-A2 Can Be A Diagnostic Marker Inthe Early Stage Diagnosis Of Acute Mesenteric Ischemia, Tarik Acar, Sedat Koçak, Başar Cander, Mehmet Ergi̇n, Cesareddi̇n Di̇kmetaş

Turkish Journal of Medical Sciences

Background/aim: The purpose of this experimental study was to investigate the role of lipoprotein-associated phospholipase-A2 (Lp-PLA2) in the diagnosis of acute mesenteric ischemia (AMI) in the early stage. Materials and methods: Twenty-seven New Zealand rabbits were randomly divided into 3 groups in this study. Blood specimens were obtained from the groups at hours 0, 1, 3, and 6. Using the blood samples drawn from all groups, Lp-PLA2 and C-reactive protein (CRP) parameters were investigated. Results: There was a significant rise in the levels of both Lp-PLA2 and CRP starting at hour 1 (P < 0.05) (hour 1; Lp-PLA2, P = 0.003) in the ischemia group. In the sham group, the levels of Lp-PLA2 and CRP started to rise at hour 3 (P < 0.05) (hour 3; Lp-PLA2, P = 0.011). At hour 6 of ischemia, the area under the ROC curve was 100%, and the cut-off value of 63.91 ng/mL revealed a sensitivity of 88% and a specificity of 100% for Lp-PLA2. Conclusion: These findings showed the role of serum Lp-PLA2 and CRP levels in the early diagnosis of AMI. Thus, further studies are needed to describe the role of Lp-PLA2 in the early diagnosis of AMI.


Promoter Methylation Profile Of Gstp1 And Rassf1a In Prostate Cancerand Benign Hyperplasia In Vietnamese Men, Thi Thuong Lan Vo, Bich Thuan Ta, Van To Ta, Dieu Linh Vuong, Quynh Uyen Nguyen Jan 2016

Promoter Methylation Profile Of Gstp1 And Rassf1a In Prostate Cancerand Benign Hyperplasia In Vietnamese Men, Thi Thuong Lan Vo, Bich Thuan Ta, Van To Ta, Dieu Linh Vuong, Quynh Uyen Nguyen

Turkish Journal of Medical Sciences

Background/aim: The GSTP1 and RASSF1A methylations that were considered as prostate cancer-specific molecular biomarkers have been extensively reported in Western/American patients with prostate cancer but are rarely reported in Southeast Asian patients. In the present study, the methylation status of the GSTP1 and RASSF1A promoters was evaluated in prostate cancer (PCa) and benign prostate hyperplasia (BPH) tissues from Vietnamese men. Materials and methods: The accuracy of methylation-specific polymerase chain reaction (MSP) was validated to analyze the methylation pattern of GSTP1 and RASSF1A in 59 PCa and 37 BPH patients, respectively. The methylation status was confirmed by the sequencing of cloned …


Bayesian Exponential Random Graph Modeling Of Whole-Brain Structural Networks Across Lifespan, Michel Sinke, Rick Dijkhuizen, Alberto Caimo, Cornelis Stam, Willem Otte Jan 2016

Bayesian Exponential Random Graph Modeling Of Whole-Brain Structural Networks Across Lifespan, Michel Sinke, Rick Dijkhuizen, Alberto Caimo, Cornelis Stam, Willem Otte

Articles

No abstract provided.


Efficacy In Screening Patients For Lynch Syndrome, Adria Ridl Jan 2016

Efficacy In Screening Patients For Lynch Syndrome, Adria Ridl

Physician Assistant Scholarly Project Posters

Lynch syndrome is an autosomal dominant syndrome caused by an inherited germline mutation of the MMR proteins. A mutation of any of the MMR proteins, MLH1, MSH2, MSH6, PMS2 and EPCAM increases the risk of developing cancer, specifically colorectal and endometrial cancer. Approximately 3% of colorectal cancers are associated with Lynch Syndrome (LS). Early identification of a patient’s hereditary cancer risk offers the best outcome. To aid clinicians in the identification of a carrier of LS clinical guidelines and risk prediction models are used. In this analysis the Amsterdam II criteria and Revised Bethesda guidelines are compared to the more …


Bioinnovation Enterprise: An Engine Driving Breakthrough Therapies., Scott A. Waldman, Andre Terzic Jan 2016

Bioinnovation Enterprise: An Engine Driving Breakthrough Therapies., Scott A. Waldman, Andre Terzic

Department of Pharmacology and Experimental Therapeutics Faculty Papers

Biological advances have radically expanded our insights into the underpinnings of health and disease. New knowledge has formed the substrate for translation-expedited in turn by the biotechnology and pharmaceutical industry into novel therapeutic solutions impacting the management of patients and populations. Indeed, this Bioinnovation Enterprise has become the dominant growth sector in drug development and the engine driving the translation of breakthrough therapies worldwide. This annual Therapeutic Innovations issue highlights recent exceptional advances by the Bioinnovation Enterprise in translating molecular insights in pathobiology into transformative therapies.


Is The High Frequency Of Postoperative Atrial Fibrillation After Cardiac And Lung Surgeries Related To Hypomagnesemia And Releases Of Ceramides And Platelet-Activating Factor?, Burton M. Altura, Nilank C. Shah, Gatha J. Shah, Aimin Zhang, Wenyan Li, Bella T. Altura Jan 2016

Is The High Frequency Of Postoperative Atrial Fibrillation After Cardiac And Lung Surgeries Related To Hypomagnesemia And Releases Of Ceramides And Platelet-Activating Factor?, Burton M. Altura, Nilank C. Shah, Gatha J. Shah, Aimin Zhang, Wenyan Li, Bella T. Altura

Touro College of Osteopathic Medicine (Middletown) Publications and Research

The authors discuss the possible role of hypomagnesemia, ceramides and platelet-activating factor in the incidence of postoperative atrial fibrillation after cardiac and lung surgeries.


Re: "Job Strain And The Cortisol Diurnal Cycle In Mesa: Accounting For Between- And Within-Day Variability, Irvin Sam Schonfeld, Renzo Bianchi Jan 2016

Re: "Job Strain And The Cortisol Diurnal Cycle In Mesa: Accounting For Between- And Within-Day Variability, Irvin Sam Schonfeld, Renzo Bianchi

Publications and Research

Rudolph et al. (2016) examined the association between job strain and cortisol profile. Several potential confounders were considered, including sociodemographic characteristics, income-wealth index, financial strain, physical health, physical activity, and medication use. No relationship between job strain and the cortisol awakening response was observed. We have 4 comments on the methods used in the study. First, although the authors related the modifications in cortisol profiles to job strain, they did not assess and statistically control for a number of nonoccupational strain factors (e.g., family- or couple-related chronic stress). Second, depressive symptoms and disorders were not considered in the study. Depression …


Role Of Sulfiredoxin Interacting Proteins In Lung Cancer Development, Hedy Chawsheen Jan 2016

Role Of Sulfiredoxin Interacting Proteins In Lung Cancer Development, Hedy Chawsheen

Theses and Dissertations--Toxicology and Cancer Biology

Sulfiredoxin (Srx) is an antioxidant enzyme that can be induced by oxidative stress. It promotes oncogenic phenotypes of cell proliferation, colony formation, migration, and metastasis in lung, skin and colon cancers. Srx reduces the overoxidation of 2-cysteine peroxiredoxins in cells, in addition to its role of removing glutathione modification from several proteins. In this study, I explored additional physiological functions of Srx in lung cancer through studying its interacting proteins. Protein disulfide isomerase (PDI) family members, thioredoxin domain containing protein 5 (TXNDC5) and protein disulfide isomerase family A member 6 (PDIA6), were detected to interact with Srx. Therefore, I proposed …


Ophthalmic Pathologies In Female Subjects With Bilateralcongenital Sensorineural Hearing Loss, Mehmet Talay Köylü, Gökçen Gökçe, Güngör Sobaci, Fahretti̇n Güven Oysul, Dorukcan Akincioğlu Jan 2016

Ophthalmic Pathologies In Female Subjects With Bilateralcongenital Sensorineural Hearing Loss, Mehmet Talay Köylü, Gökçen Gökçe, Güngör Sobaci, Fahretti̇n Güven Oysul, Dorukcan Akincioğlu

Turkish Journal of Medical Sciences

Background/aim: The high prevalence of ophthalmologic pathologies in hearing-disabled subjects necessitates early screening of other sensory deficits, especially visual function. The aim of this study is to determine the frequency and clinical characteristics of ophthalmic pathologies in patients with congenital bilateral sensorineural hearing loss (SNHL). Materials and methods: This descriptive study is a prospective analysis of 78 young female SNHL subjects who were examined at a tertiary care university hospital with a detailed ophthalmic examination, including electroretinography (ERG) and visual field tests as needed. Results: The mean age was 19.00 ± 1.69 years (range: 15 to 24 years). A total …


The Inhibitory Effect Of Bacteriocin Produced By Lactobacillus Acidophilusatcc 4356 And Lactobacillus Plantarum Atcc 8014 On Planktonic Cells And Biofilms Of Serratia Marcescens, Roya Vahedi Shahandashti, Rouha Kasra Kermanshahi, Parinaz Ghadam Jan 2016

The Inhibitory Effect Of Bacteriocin Produced By Lactobacillus Acidophilusatcc 4356 And Lactobacillus Plantarum Atcc 8014 On Planktonic Cells And Biofilms Of Serratia Marcescens, Roya Vahedi Shahandashti, Rouha Kasra Kermanshahi, Parinaz Ghadam

Turkish Journal of Medical Sciences

Background/aim: The spread of antibiotic-resistant pathogens has resulted in the need for new treatments. The aim of the present study is to investigate the effect of bacteriocin from Lactobacillus acidophilus ATCC 4356 and Lactobacillus plantarum ATCC 8014 on planktonic and biofilm forms of Serratia marcescens strains. Materials and methods: The direct antagonism of the L. plantarum and L. acidophilus cell-free supernatant on S. marcescens cultures was determined using an optical density assay. The bacteriocin was partial purified by ammonium sulfate precipitation. Its molecular weight was analyzed with sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). The effect of bacteriocins on the biofilm …


Effects Of 1-(2-Trifluoromethylphenyl)-Imidazole (Trim) On Receptor-Independent And -Dependent Contractile Responses In Rat Aorta, Çi̇ğdem Selli̇, Yasemi̇n Eraç, Meti̇ner Tosun Jan 2016

Effects Of 1-(2-Trifluoromethylphenyl)-Imidazole (Trim) On Receptor-Independent And -Dependent Contractile Responses In Rat Aorta, Çi̇ğdem Selli̇, Yasemi̇n Eraç, Meti̇ner Tosun

Turkish Journal of Medical Sciences

Background/aim: This study investigates whether 1-(2-trifluoromethylphenyl)-imidazole (TRIM), originally proposed as a nitric oxide synthase inhibitor and also suggested to be an inhibitor of store-operated calcium entry in mouse anococcygeal muscle, inhibits receptor-independent and -dependent responses in rat thoracic aorta. Materials and methods: Cyclopiazonic acid- and serotonin-induced vascular responses were investigated in aortic segments isolated from male Sprague Dawley rats using isolated tissue experiments. Changes in intracellular calcium levels were also monitored via front surface fluorescence measurements in fura-2-loaded embryonic rat vascular smooth muscle cell line A7r5. Results: TRIM inhibited serotonin-mediated vascular contractions without affecting cyclopiazonic acid-induced responses. In addition, TRIM …


The Clinical And Laboratory Characteristics, Treatments, And Outcomes Of Patients With Brucella Epididymo-Orchitis (Beo) Compared To Those Without Beo*, Hasan Naz, Pinar Korkmaz, Fi̇gen Çevi̇k, Nevi̇l Aykin Jan 2016

The Clinical And Laboratory Characteristics, Treatments, And Outcomes Of Patients With Brucella Epididymo-Orchitis (Beo) Compared To Those Without Beo*, Hasan Naz, Pinar Korkmaz, Fi̇gen Çevi̇k, Nevi̇l Aykin

Turkish Journal of Medical Sciences

Background/aim: We aim to describe the clinical and laboratory characteristics, treatment, and outcomes of 21 patients with Brucella epididymo-orchitis (BEO) from Eskişehir Yunus Emre State Hospital, Turkey. Materials and methods: A total of 21 patients with BEO who were diagnosed and followed in the Infectious Diseases Clinic between June 2001 and June 2013 were evaluated retrospectively. Results: One hundred and twenty-eight of 192 patients evaluated throughout the study were male and BEO was determined in 21 (16.4%) patients. A total of 18 (85.7%) patients had a titer of ≥1:160 in standard agglutination test (STA). Three patients with STA


Interlukine-17 And Tgf-Ss Levels In Patients With Acute Brucellosisbefore And After Treatment, Masoomeh Sofian, Amitis Ramezani, Alia Mousavi, Mohammad Banifazl, Shima Cherei, Ali Cherei, Arezoo Aghakhani Jan 2016

Interlukine-17 And Tgf-Ss Levels In Patients With Acute Brucellosisbefore And After Treatment, Masoomeh Sofian, Amitis Ramezani, Alia Mousavi, Mohammad Banifazl, Shima Cherei, Ali Cherei, Arezoo Aghakhani

Turkish Journal of Medical Sciences

Background/aim: T-helper cell type 1 (Th1)/Th2 cytokine balance is involved in the resistance or susceptibility to Brucella infection. The analysis of cytokine levels is valuable to determine the role of the immune system in Brucella prognosis. The aim of this study was to investigate the levels of serum interleukin-17 (IL-17) and transforming growth factor beta (TGF-β) and their alterations with treatment in patients with acute brucellosis. Materials and methods: TGF-β was tested in 33 acute brucellosis patients and 19 controls and IL-17 was analyzed in 40 patients and 12 controls. Cytokine levels were tested in controls and patients before and …


Applying The International Classification Of Functioning, Disability, And Health In Children With Low Vision: Differences Between Raters, Feri̇de Yarar, Uğur Cavlak, Bi̇lge Başakci Çalik Jan 2016

Applying The International Classification Of Functioning, Disability, And Health In Children With Low Vision: Differences Between Raters, Feri̇de Yarar, Uğur Cavlak, Bi̇lge Başakci Çalik

Turkish Journal of Medical Sciences

Background/aim: This study was conducted to analyze the agreement between International Classification of Functioning, Disability, and Health (ICF) raters and to show its applicability in children with low vision. Materials and methods: Twenty children (mean age: 11.70 ± 1.92 years) were included. To evaluate the independency of the sample, the Northwick Park Activities Daily Living questionnaire was used. The Low Vision Quality of Life Scale was used to evaluate quality of life. An ICF core set was developed to be used in this study. The core set consisted of 13 items for body functions, 3 items for body structures, 36 …