Digital Commons Network^™

Transcriptional Responses Of In Vivo Praziquantel Exposure In Schistosomes Identifies A Functional Role For Calcium Signalling Pathway Member Camkii, Hong You, Donald P. Mcmanus, Wei Hu, Michael J. Smout, Paul J. Brindley, Geoffrey N. Gobert

Microbiology, Immunology, and Tropical Medicine Faculty Publications

Treatment for clinical schistosomiasis has relied centrally on the broad spectrum anthelmintic praziquantel; however, there is limited information on its mode of action or the molecular response of the parasite. This paper presents a transcriptional and functional approach to defining the molecular responses of schistosomes to praziquantel. Differential gene expression in Schistosoma japonicum was investigated by transcriptome-wide microarray analysis of adult worms perfused from infected mice after 0.5 to 24 hours after oral administration of sub-lethal doses of praziquantel. Genes up-regulated initially in male parasites were associated with “Tegument/Muscle Repair” and “Lipid/Ion Regulation” functions and were followed by “Drug Resistance” …

Understanding The Anatomy Of Dystonia: Determinants Of Penetrance And Phenotype, R. P. Lerner, M. Niethammer, D. Eidelberg

Journal Articles

No abstract provided.

The Expanding Genomic Landscape Of Autism: Discovering The 'Forest' Beyond The 'Trees', Valerie Wailin Hu

Biochemistry and Molecular Medicine Faculty Publications

Autism spectrum disorders (ASDs) are neurodevelopmental disorders characterized by significant deficits in reciprocal social interactions, impaired communication, and restricted, repetitive behaviors. Because ASDs are among the most heritable of neuropsychiatric disorders, much of autism research has focused on the search for genetic variants in protein-coding genes (i.e., the "trees"). However, no single gene can account for more than 1% of the cases of ASD. Yet, genome-wide association studies have often identified statistically significant associations of genetic variations in regions of DNA that do not code for proteins (i.e., intergenic regions). There is increasing evidence that such noncoding regions are actively …

Sarcoidosis And Denim Sandblasting: A Case Report, Hülya Uzkeser, Sali̇ha Karatay, Kadi̇r Yildirim, Suat Eren

Turkish Journal of Medical Sciences

In this case report we present a rare case of sarcoidosis associated with denim sandblasting. A 33-year-old male patient was admitted to our clinic with pain in his shoulders, elbows, wrists, and hips, which had started 5 months earlier. His medical history showed that he had been working in denim sandblasting for the last 4 years. Sacroiliac compression and FABER tests were both positive. Laboratory analysis reported an erythrocyte sedimentation rate of 43 mm/h and serum C-reactive protein of 11 mg/dL. Bilateral hilar and mediastinal multiple lymph nodes of about 2 cm and bilateral parenchymal nodular opacities were observed in …

Comparison Of Latanoprost, Brimonidine Tartrate, And Bimatoprost Plus Timolol Maleate In Fixed Combinations, Güli̇z Fatma Yavaş, Tuncay Küsbeci̇, Onur Polat, Mahmut Karadaş, Sitki Samet Ermi̇ş, Ümi̇t Übeyt İnan

Turkish Journal of Medical Sciences

To compare the intraocular pressure (IOP)-lowering efficacy of fixed-combination antiglaucoma agents, and to evaluate the effect of these drugs on the visual field and optic disk morphology. Materials and methods: Included in this retrospective study were 17 eyes receiving latanoprost 0.005% + timolol maleate 0.5% fixed combination (group 1), 18 eyes receiving brimonidine tartrate 0.2% + timolol maleate 0.5% fixed combination (group 2), and 16 eyes receiving bimatoprost 0.03% + timolol maleate 0.5% fixed combination (group 3), all with the diagnosis of primary open-angle glaucoma or ocular hypertension. Intraocular pressure was measured by Goldmann applanation tonometer, a visual field test …

Special Issue On Medical Simulation, Michel Audette, Hanif M. Ladak

Computational Modeling & Simulation Engineering Faculty Publications

We would like to welcome you to this Special Issue on Medical Simulation, the first of its kind not only for SIMULATION: Transactions of The Society for Modeling and Simulation International, but for any technical journal. Our respective backgrounds are an indication of the technical and clinical breadth of medical simulation, as we approach the subject as primarily medical image analysis and biomechanics experts respectively, each with a variety of clinical interests spanning virtual reality (VR)–based neuro-, orthopedic and ear-nose-and-throat surgery. Moreover, we believe that the breadth of the papers that comprise this issue reflects an even broader perspective. After …

Dexmedetomidine Infusion Prevents Postoperative Shivering In Patients Undergoing Gynecologic Laparoscopic Surgery, Semra Karaman, İlkben Günüşen, Mustafa Arda Ceylan, Yücel Karaman, Esra Nur Çeti̇n, Abdurrahi̇m Derbent, Ahmet Mete Ergenoğlu

Turkish Journal of Medical Sciences

This placebo-controlled, randomized study was performed to evaluate the efficacy of dexmedetomidine in preventing postoperative shivering. Materials and methods: Sixty patients undergoing gynecologic laparoscopic surgery were assigned randomly to 2 groups to be administered either dexmedetomidine as a loading of 1 µg kg^{-1} for 10 min followed by a maintenance infusion of 0.5 µg kg^{-1} h^{-1} (Group D, n = 30), or a normal saline infusion (Group S, n = 30). Results: Postoperative shivering was observed in 14 patients in Group S and in 3 patients in Group D (P = 0.001). The sedation scores were higher in the dexmedetomidine …

Is Placement Of Pelvic Drain Indispensable After Radical Cystectomy, Extended Lymph Node Dissection, And Orthotopic Neobladder Substitution?, Ahmet Tunç Özdemi̇r, Serkan Altinova, Ege Can Şerefoğlu, Ali̇ Fuat Atmaca, Mevlana Derya Balbay

Turkish Journal of Medical Sciences

To evaluate the necessity of leaving a pelvic drain after open radical cystectomy. Materials and methods: Between January 2007 and January 2010, 58 patients with muscle-invasive bladder carcinoma were included. All patients underwent radical cystectomy, extended lymph node dissection, and orthotopic bladder (Studer pouch) substitution. Patients were randomized to have a pelvic drain catheter (Group 1, n = 22) or not (Group 2, n = 36). Ureteral catheters were removed at postoperative days 7 and 8. The pelvic drain catheters in Group 1 were removed when daily production was

Anterior Segment Morphometry And Intraocular Pressure Change After Uneventful Phacoemulsification, Tamer Takmaz, Pinar Kösekahya, Pi̇raye Zeynep Kürkçüoğlu

Turkish Journal of Medical Sciences

To evaluate the changes in anterior segment morphometry and intraocular pressure (IOP) with 3D rotating Scheimpflug camera-topography system after uneventful phacoemulsification. Materials and methods: In 56 eyes of 54 patients, anterior chamber depth (ACD), anterior chamber volume (ACV), anterior chamber angle (ACA), and central corneal thickness (CCT) were measured with the Sirius 3D Rotating Scheimpflug camera-topography system preoperatively and 1 month after surgery. IOP was measured with applanation tonometer. The preoperative and postoperative results were compared. Results: Preoperative and postoperative anterior segment parameters were as follows: ACD 2.7 ± 0.4 and 3.5 ± 0.3 mm, ACV 143.6 ± 48.8 and …

Intraarticular Hydraulic Distension With Steroids In The Management Of Hemiplegic Shoulder, Asuman Doğan, Refi̇ka Demi̇rtaş, Neşe Özgi̇rgi̇n

Turkish Journal of Medical Sciences

The aim of this study is to compare intraarticular steroid administration and steroid administration with hydraulic distention of the glenohumeral joint in hemiplegic patients who had developed shoulder pain and limitation. Materials and methods: The study consisted of 60 patients attending an inpatient rehabilitation program following a stroke. Each patient had shoulder pain and shoulder limitations . The patients were divided into 3 groups consisting of 20 patients each, according to their order of admission. Conventional physical treatment and rehabilitation (PTR) methods were applied to the patients in Group 1 (control group), conventional PTR and an intraarticular steroid were applied …

New Risk Scoring System For Femoral Pseudoaneurysm Formation After Cardiac Catheterization (Ateş Scoring System), Mehmet Ateş, Mehmet Beşi̇r Akpinar, Fai̇k Fevzi̇ Okur, Ahmet Feyzi̇ Abacilar, Veysel Şahi̇n, İhsan Sami̇ Uyar, Emi̇n Alp Alayunt

Turkish Journal of Medical Sciences

To create a new scoring system for femoral pseudoaneurysm (FPA) formation after diagnostic or interventional cardiac catheterization. Materials and methods: We evaluated 41,322 transfemoral catheterization procedures performed in our center within 7 years. Among all procedures, 630 FPAs developed that required surgical repair. Eighty-five cases were managed by compression with duplex guidance. As a case-control group, 1260 patients were selected from the patients who had been catheterized during the same time period but did not develop FPA. We created the risk scoring system according to body mass index, hypertension, diabetes mellitus, catheter diameter, coronary artery disease, atherosclerosis, and number of …

The Effects Of Acetyl Shikonin Isolated From Onosma Armeniacum On Oxidative Stress In Ethanol-Induced Ulcer Model Of Rats, Aysun Toker, Fati̇h Akçay, Hülya Aksoy, Hali̇s Süleyman, Ufuk Özgen, Havva Erdem

Turkish Journal of Medical Sciences

We investigated the effects of acetyl shikonin isolated from Onosma armeniacum on ethanol-induced gastric injury (ulcer) and on oxidant-antioxidant parameters in the gastric tissue of rats. Materials and methods: Eighteen albino Wistar male rats were divided into 3 different experimental groups. Group 1 (n = 6) was the control group, group 2 (n = 6) was the ethanol group, and group 3 (n = 6) was the acetyl shikonin + ethanol group. The animals in group 3 were given ethanol (1 mL, 50% v/v) 30 min after acetyl shikonin (40 mg/kg) administration by orogastric tube. Results: The lowest mean nitric …

Serum Lipoprotein(A) And High Sensitivity C Reactive Protein Levels In Saudi Patients With Type 2 Diabetes Mellitus And Their Relationship With Glycemic Control, Syed Shahid Habib

Turkish Journal of Medical Sciences

To study serum lipoprotein(a) [Lp(a)] and high sensitivity C reactive protein (hsCRP) levels in Saudi patients with type 2 diabetes mellitus (DM) and their relationship with glycemic control. Materials and methods: A total of 201 subjects were selected for the study. The final selection included 103 patients with type 2 DM (64 males and 39 females) and 98 healthy control subjects (58 males and 40 females). Fasting venous blood samples were analyzed for glucose, glycosylated hemoglobin (HbA1c), lipids, Lp(a), and hsCRP levels. Results: Subjects with poor glycemic control showed significantly higher levels of fasting blood glucose levels (10.29 ± 3.56 …

Principles Of Management Of Severe Hyponatremia, Antonios H. Tzamaloukas Md, Deepak Malhorta Md, Phd, Bradley H. Rosen Do, Dominic S. C. Raj S. C. Raj Md, Glen H. Murata Md, Joseph I. Shapiro Md

Pharmaceutical Science and Research

Hyponatremia represents a serious health hazard.¹ Hospitalized patients,² nursing home residents,³ women,^4,5 and children⁶ exhibit high frequency and/or severity of hyponatremia. Hyponatremia developing during the course of other morbid conditions increases their severity.^7–10 Estimates of direct costs for treating hyponatremia in the United States ranged between $1.61 and $3.6 billion.¹¹

Clinical manifestations of hyponatremia are universal^12,13 and range from subtle (disturbances of balance, problems in cognition detected only during specific testing) to life-threatening manifestations of increased intracranial pressure with life-threatening hypoxia^14–16 and noncardiac pulmonary edema.¹⁷ Although the treating physicians must …

Generation And Characterization Of Peptide Fusion Proteins, Brianna L. Probasco

Graduate School of Biomedical Sciences Theses and Dissertations

Pathogenic Th17 cells drive progression of many autoimmune diseases. Th17 cells develop from naïve T cells in the immune system after antigen-driven stimulation in a specific cytokine environment. Normally, T cells act to fight off infection, but when not properly controlled, they can cause disease. The cytokine interleukin-23 (IL-23) plays an essential role in the expansion of pathogenic Th17 cells. IL-23 is a heterodimeric protein, composed of a p19 alpha chain and a p40 beta chain. The p40 is also part of IL-12 and binds to the IL-12 receptor beta 1 (IL-12Rβ1) subunit. Thus, it follows that the IL-23 receptor …

Fyn-Dependent Gene Networks In Acute Ethanol Sensitivity, Sean P. Farris, Michael F. Miles

Pharmacology and Toxicology Publications

Studies in humans and animal models document that acute behavioral responses to ethanol are predisposing factor for the risk of long-term drinking behavior. Prior microarray data from our laboratory document strain- and brain region-specific variation in gene expression profile responses to acute ethanol that may be underlying regulators of ethanol behavioral phenotypes. The non-receptor tyrosine kinase Fyn has previously been mechanistically implicated in the sedative-hypnotic response to acute ethanol. To further understand how Fyn may modulate ethanol behaviors, we used whole-genome expression profiling. We characterized basal and acute ethanol-evoked (3 g/kg) gene expression patterns in nucleus accumbens (NAC), prefrontal cortex …

Acute Alcohol Consumption Impairs Controlled But Not Automatic Processes In A Psychophysical Pointing Paradigm., Kevin Johnston, Brian Timney, Melvyn A Goodale

Brain and Mind Institute Researchers' Publications

Numerous studies have investigated the effects of alcohol consumption on controlled and automatic cognitive processes. Such studies have shown that alcohol impairs performance on tasks requiring conscious, intentional control, while leaving automatic performance relatively intact. Here, we sought to extend these findings to aspects of visuomotor control by investigating the effects of alcohol in a visuomotor pointing paradigm that allowed us to separate the influence of controlled and automatic processes. Six male participants were assigned to an experimental "correction" condition in which they were instructed to point at a visual target as quickly and accurately as possible. On a small …

Errors In Device Localization In Mri Using Z-Frames., Jeremy Cepek, Blaine A Chronik, Aaron Fenster

Brain and Mind Institute Researchers' Publications

The use of a passive MRI-visible tracking frame is a common method of localizing devices in MRI space for MRI-guided procedures. One of the most common tracking frame designs found in the literature is the z-frame, as it allows six degree-of-freedom pose estimation using only a single image slice. Despite the popularity of this design, it is susceptible to errors in pose estimation due to various image distortion mechanisms in MRI. In this paper, the absolute error in using a z-frame to localize a tool in MRI is quantified over various positions of the z-frame relative to the MRI isocenter, …

Neuropsychological Outcome In Relation To Duration Of Early Orphanage Experience, Jacquelyn Marie Perry Avery

Wayne State University Dissertations

In this sample of 144 children with a history of prior orphanage experience, increasing duration of institutionalization is related to decreasing performance for a number of cognitive domains, most consistently verbal measures and executive Functioning measures. The relationships with duration for measures requiring visual-spatial skills were more mixed and a visual reasoning task was found to significantly relate to duration but not a measure of visual memory or a measure of nonverbal achievement. There was little evidence to support a relationship between the duration of institutionalization and fine-motor dexterity. The strongest relationships with duration were observed for language measures followed …

Multi-Modality Assessment Of Language Function, Erik Carmen Brown

Wayne State University Dissertations

The work presented as part of this dissertation represents a multi-modality study of language structure and function. The primary functional modality employed is task-related electrocorticography (ECoG). This is complemented by discussion and evaluation of previously published functional magnetic resonance imaging (fMRI) data. Language-related structure is explored using diffusion-weighted magnetic resonance imaging in conjunction with ECoG data. The scientific questions pursued are broad and include reevaluation of previously proposed theories.

We start by taking the first steps in validating our naming-related ECoG approach by comparing our results from a small cohort of patients to the clinical gold-standard technique of electrical brain …

White Matter Integrity And Age Related Differences In Reaction Time Components, Yiqin Yang

Wayne State University Dissertations

Reduced speed in information processing is a well-documented phenomenon associated with advanced aging. Age-related deterioration in white matter integrity might play a role in age-related increase in reaction time (RT). However, the association between microstructural differences in particular white matter regions or tracts with RT is unclear. Decomposing RT into parts might be a better way to understand the relationship due to multiple processes involved in RT. In a lifespan sample of 90 healthy normotensive participants, this study examined the association between RT components derived from the Ratcliff diffusion model with age related difference in DTI indices of a wide …

Androgen Receptor-Target Genes In African American Prostate Cancer Disparities, Bi-Dar Wang, Qi Yang, Kristin Ceniccola, Fernando Bianco, Ramez Andrawis, Thomas W. Jarrett, Harold A. Frazier, Steven R. Patierno, Norman H. Lee

Pharmacology and Physiology Faculty Publications

The incidence and mortality rates of prostate cancer (PCa) are higher in African American (AA) compared to Caucasian American (CA) men. To elucidate the molecular mechanisms underlying PCa disparities, we employed an integrative approach combining gene expression profiling and pathway and promoter analyses to investigate differential transcriptomes and deregulated signaling pathways in AA versus CA cancers. A comparison of AA and CA PCa specimens identified 1,188 differentially expressed genes. Interestingly, these transcriptional differences were overrepresented in signaling pathways that converged on the androgen receptor (AR), suggesting that the AR may be a unifying oncogenic theme in AA PCa. Gene promoter …

Factors That Lead To The Immunotherapy Gap In Multiple Sclerosis Testing, Karthika Solai

AUCTUS: The Journal of Undergraduate Research and Creative Scholarship

Multiple sclerosis is a disease that affects the central nervous system. Most doctors and scientists believe that it is an autoimmune disease. Simply put, the immune system attacks the nerves in a person’s body, thereby causing myelin damage, inflammation, and neurodegeneration. The plaque that then builds up on the nerves is scar tissue created when the wounds made by the immune system heal. It is this plaque that inhibits communication between the axons in the body and causes the symptoms of MS, which includes problems with movement, pain, vision problems, trouble swallowing, fatigue, and heat sensitivity (Baker et al., 2011, …

Low-Abundance Resistant Mutations In Hiv-1 Subtype C Antiretroviral Therapy-Naïve Individuals As Revealed By Pyrosequencing, Sandra Gonzalez, Damien C. Tully, Clement Gondwe, Charles Wood

Nebraska Center for Virology: Faculty Publications

Given the recent scale-up of antiretroviral therapy (ART) in sub-Saharan Africa, we sought to determine how often and at what levels do drug-resistant mutant variants exist in ART-naïve HIV subtype C infected individuals. Samples from 10 ART-naïve Zambian individuals were subjected to ultra-deep pyrosequencing (UDPS) to characterize the frequency of low-abundance drug resistance mutations in the pol gene. Low-abundance clinically relevant variants were detected for nucleoside reverse transcriptase inhibitors (NRTIs), non-nucleoside reverse transcriptase inhibitors (NNRTIs) and protease inhibitors (PIs) in eight of the ten subjects. Intermediate to high-level resistance was predicted for the majority of NRTIs. Mutations conferring resistance to …

Clade C Hiv-1 Isolates Circulating In Southern Africa Exhibit A Greater Frequency Of Dicysteine Motif-Containing Tat Variants Than Those In Southeast Asia And Cause Increased Neurovirulence, Vasudev R. Rao, Ujjwal Neogi, Joshua S, Talboom, Ligia Padilla, Mustafizur Rahman, Cari Fritz-French, Sandra Gonzalez-Ramirez, Anjali Verma, Charles Wood, Ruth M. Ruprecht, Udaykumar Ranga, Tasnim Azim, Vinayaka R. Prasad

Nebraska Center for Virology: Faculty Publications

Background: HIV-1 Clade C (Subtype C; HIV-1C) is responsible for greater than 50% of infections worldwide. Unlike clade B HIV-1 (Subtype B; HIV-1B), which is known to cause HIV associated dementia (HAD) in approximately 15% to 30% of the infected individuals, HIV-1C has been linked with lower prevalence of HAD (0 to 6%) in India and Ethiopia. However, recent studies report a higher prevalence of HAD in South Africa, Zambia and Botswana, where HIV-1C infections predominate. Therefore, we examined whether Southern African HIV-1C is genetically distinct and investigated its neurovirulence. HIV-1 Tat protein is a viral determinant of neurocognitive dysfunction. …

Global Neuroaids Roundtable, Jeymohan Joseph, Cristian L. Achim, Michael J. Boivin, Bruce J. Brew, David B. Clifford, Deborah A. Colosi, Ronald J. Ellis, Robert K. Heaton, Amadou Gallo-Diop, Igor Grant, Georgette D. Kanmogne, Mahendra Kumar, Scott Letendre, Thomas D. Marcotte, Avindra Nath, Carlos A. Pardo, Robert H. Paul, Lynn Pulliam, Kevin Robertson, Walter Royal Iii, Ned Sacktor, Pasiri Sithinamsuwan, Davey M. Smith, Victor Valcour, Brian Wigdahl, Charles Wood

Nebraska Center for Virology: Faculty Publications

In May 2012, the Division of AIDS Research at the National Institute of Mental Health (NIMH) organized the “Global NeuroAIDS Roundtable” in conjunction with the 11th International Symposium on Neurovirology and the 2012 Conference on HIV in the Nervous System. The meeting was held in New York, NY, USA and brought together NIMH-funded investigators who are currently working on projects related to the neurological complications of AIDS (NeuroAIDS) in Africa, Asia, Eastern Europe, and Latin America in order to provide an opportunity to share their recent findings and discuss the challenges encountered within each country. The major goals of the …

Corneal Gene Therapy: Basic Science And Translational Perspective, Rajiv R. Mohan, Jason T. Rodier, Ajay Sharma

Pharmacy Faculty Articles and Research

Corneal blindness is the third leading cause of blindness worldwide. Gene therapy is an emerging technology for corneal blindness due to the accessibility and immune-privileged nature of the cornea, ease of vector administration and visual monitoring, and ability to perform frequent noninvasive corneal assessment. Vision restoration by gene therapy is contingent upon vector and mode of therapeutic gene introduction into targeted cells/tissues. Numerous efficacious vectors, delivery techniques, and approaches have evolved in last decade for developing gene-based interventions for corneal diseases. Maximizing the potential benefits of gene therapy requires efficient and sustained therapeutic gene expression in target cells, low toxicity, …

Hydrodynamic Modeling Of Ns-Laser Ablation, David Autrique, Vasilios Alexiades, Harihar Khanal

Publications

Laser ablation is a versatile and widespread technique, applied in an increasing number of medical, industrial and analytical applications. A hydrodynamic multiphase model describing nanosecond-laser ablation (ns- LA) is outlined. The model accounts for target heating and mass removal mechanisms as well as plume expansion and plasma formation. A copper target is placed in an ambient environment consisting of helium and irradiated by a nanosecond-laser pulse. The effect of variable laser settings on the ablation process is explored in 1-D numerical simulations.

The Role Of Complement In Experimental Cerebral Malaria, Theresa N. Ramos

All ETDs from UAB

Cerebral malaria (CM) is one of the most severe clinical complications of P. falciparum malaria with a fatality rate of 15-30%, and 10% of CM survivors have permanent neurological sequelae. Since inflammation is a central pathophysiological tenet of CM, we began examining the role of the complement system in pathogenesis of experimental cerebral malaria (ECM) using Plasmodium berghei ANKA (PbA) model. Previous studies using this model indicated that mice naturally deficient in complement component C5 were protected from cerebral complications, and wild type mice treated with anti-C5aR antibody were also protected. To determine the protective mechanism of naturally-C5 deficient mice, …

Systems Biology Of The Functional And Dysfunctional Endothelium, Jennifer Frueh, Nataly Maimari, Takayuki Homma, Sandra M. Bovens, Ryan M. Pedrigi, Leila Towhidi, Rob Krams

Department of Mechanical and Materials Engineering: Faculty Publications

This review provides an overview of the effect of blood flow on endothelial cell (EC) signalling pathways, applying microarray technologies to cultured cells, and in vivo studies of normal and atherosclerotic animals. It is found that in cultured ECs, 5–10% of genes are up- or down-regulated in response to fluid flow, whereas only 3–6% of genes are regulated by varying levels of fluid flow. Of all genes, 90%are regulated by the steady part of fluid flow and 10% by pulsatile components. The associated gene profiles show high variability from experiment to experiment depending on experimental conditions, and importantly, the bioinformatical …