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Full-Text Articles in Entire DC Network
Role Of Cytochrome P450 2b6 Polymorphisms In Unexpected Methadone Death, Taha Ahmad
Role Of Cytochrome P450 2b6 Polymorphisms In Unexpected Methadone Death, Taha Ahmad
Theses, Dissertations and Capstones
Methadone is a synthetic, long-acting opioid prescribed as an analgesic for chronic pain. It has a single chiral center forming two enantiomers, (R)-methadone and (S)-methadone, each having specific pharmacological actions. Concentrations of (R)- and (S)-methadone above therapeutic levels have the ability to cause serious, life-threatening, and fatal side effects. Cardiotoxicity is caused by elevated (S)-methadone levels by prolonging the QT interval of the heart’s electrical cycle. In 2014, methadone accounted for only 1% of all opioids prescribed for pain, but was responsible for 3,400 of the 14,838 individuals (~23%) who died in the United States from overdoses due to prescription …
Fusion, 2019, George Washington University, William H. Beaumont Medical Research Honor Society
Fusion, 2019, George Washington University, William H. Beaumont Medical Research Honor Society
Fusion
No abstract provided.
Bordetella Pertussis Can Be Motile And Express Flagellum-Like Structures, Cassandra L. Hoffman, Laura A. Gonyar, Federico Zacca, Federico Sisti, Julieta Fernandez, Ting Wong, F. Heath Damron, Erik L. Hewlett
Bordetella Pertussis Can Be Motile And Express Flagellum-Like Structures, Cassandra L. Hoffman, Laura A. Gonyar, Federico Zacca, Federico Sisti, Julieta Fernandez, Ting Wong, F. Heath Damron, Erik L. Hewlett
Faculty & Staff Scholarship
ABSTRACT Bordetella bronchiseptica encodes and expresses a flagellar apparatus. In contrast, Bordetella pertussis, the causative agent of whooping cough, has historically been described as a nonmotile and nonflagellated organism. The previous statements that B. pertussis was a nonmotile organism were consistent with a stop codon located in the flagellar biosynthesis gene, flhA, discovered when the B. pertussis Tohama I genome was sequenced and analyzed by Parkhill et al. in 2003 (J. Parkhill, M. Sebaihia, A. Preston, L. D. Murphy, et al., Nat Genet, 35:32– 40, 2003, https://doi.org/10 .1038/ng1227). The stop codon has subsequently been found in all annotated genomes. Parkhill …
In Vivo Gene Essentiality And Metabolism In Bordetella Pertussis, Laura A. Gonyar, Patrick E. Gelbach, Dennis G. Mcduffe, Alexander F. Koeppel, Qing Chen, Gloria Lee, Louise M. Temple, Scott Stibitz, Erik L. Hewlwtt, Jason A. Papin, F. Heath Damron, Joshua C. Eby
In Vivo Gene Essentiality And Metabolism In Bordetella Pertussis, Laura A. Gonyar, Patrick E. Gelbach, Dennis G. Mcduffe, Alexander F. Koeppel, Qing Chen, Gloria Lee, Louise M. Temple, Scott Stibitz, Erik L. Hewlwtt, Jason A. Papin, F. Heath Damron, Joshua C. Eby
Faculty & Staff Scholarship
Bordetella pertussis is the causative agent of whooping cough, a serious respiratory illness affecting children and adults, associated with prolonged cough and potential mortality. Whooping cough has reemerged in recent years, emphasizing a need for increased knowledge of basic mechanisms of B. pertussis growth and pathogenicity. While previous studies have provided insight into in vitro gene essentiality of this organism, very little is known about in vivo gene essentiality, a critical gap in knowledge, since B. pertussis has no previously identified environmental reservoir and is isolated from human respiratory tract samples. We hypothesize that the metabolic capabilities of B. pertussis …
Neurogenesis In Neurodegenerative Diseases: Role Of Mfg-E8, Cletus Cheyuo, Monowar Aziz, Ping Wang
Neurogenesis In Neurodegenerative Diseases: Role Of Mfg-E8, Cletus Cheyuo, Monowar Aziz, Ping Wang
Faculty & Staff Scholarship
Neurodegenerative diseases are devastating medical conditions with no effective treatments. Restoration of impaired neurogenesis represents a promising therapeutic strategy for neurodegenerative diseases. Milk fat globule-epidermal growth factor-factor VIII (MFG-E8) is a secretory glycoprotein that plays a wide range of cellular functions including phagocytosis of apoptotic cells, anti-inflammation, tissue regeneration, and homeostasis. The beneficial role of MFG-E8 has been shown in cerebral ischemia (stroke), neurodegenerative diseases such as Alzheimer’s disease and Parkinson’s disease, and traumatic brain injury. In stroke, MFG-E8 promotes neural stem cell proliferation and their migration toward the ischemic brain tissues. These novel functions of MFG-E8 are primarily mediated …
Structural And Functional Determinants Of Rodent And Human Surfactant Protein A: A Synthesis Of Binding And Computational Data, Armen Nalian, Todd M. Umstead, Ching-Hui Yang, Patricia Silveyra, Neal J. Thomas, Joanna Floros, Francis X. Mccormack, Zissis C. Chroneos
Structural And Functional Determinants Of Rodent And Human Surfactant Protein A: A Synthesis Of Binding And Computational Data, Armen Nalian, Todd M. Umstead, Ching-Hui Yang, Patricia Silveyra, Neal J. Thomas, Joanna Floros, Francis X. Mccormack, Zissis C. Chroneos
Faculty Publications
Surfactant protein A (SP-A) provides surfactant stability, first line host defense, and lung homeostasis by binding surfactant phospholipids, pathogens, alveolar macrophages (AMs), and epithelial cells. Non-primates express one SP-A protein whereas humans express two: SP-A1 and SP-A2 with core intra- and inter-species differences in the collagen-like domain. Here, we used macrophages and solid phase binding assays to discern structural correlates of rat (r) and human (h) SP-A function. Binding assays using recombinant rSP-A expressed in insect cells showed that lack of proline hydroxylation, truncations of amino-terminal oligomerization domains, and site-directed serine (S) or alanine (A) mutagenesis of cysteine 6 (C6S), …
Wasted Money In United States Biomedical And Agricultural Animal Research, Jim Keen
Wasted Money In United States Biomedical And Agricultural Animal Research, Jim Keen
Biomedicine and Animal Models in Research Collection
Biomedical and agricultural animal research uses millions of experimental animals and dozens of animal species each year by choice, precedent, or regulatory mandate in basic and applied life science research and toxicity testing of drugs, chemicals, and consumer products. Animal research is a large component of the international us$270 billion government-subsidized, biomedical industrial ecosystem (Chakma et al., 2014). In the United States (us) and presumably elsewhere, about half of these funds support animal research and testing (Institute of Medicine and National Research Council, 2012). Each year at least 115 million experimental animals (mostly mice and likely a significant underestimate) are …
Antibodies In The Diagnosis, Prognosis, And Prediction Of Psychotic Disorders., Thomas A Pollak, Jonathan P Rogers, Robert G Nagele, Mark Peakman, James M Stone, Anthony S David, Philip Mcguire
Antibodies In The Diagnosis, Prognosis, And Prediction Of Psychotic Disorders., Thomas A Pollak, Jonathan P Rogers, Robert G Nagele, Mark Peakman, James M Stone, Anthony S David, Philip Mcguire
Rowan-Virtua School of Osteopathic Medicine Departmental Research
Blood-based biomarker discovery for psychotic disorders has yet to impact upon routine clinical practice. In physical disorders antibodies have established roles as diagnostic, prognostic and predictive (theranostic) biomarkers, particularly in disorders thought to have a substantial autoimmune or infective aetiology. Two approaches to antibody biomarker identification are distinguished: a "top-down" approach, in which antibodies to specific antigens are sought based on the known function of the antigen and its putative role in the disorder, and emerging "bottom-up" or "omics" approaches that are agnostic as to the significance of any one antigen, using high-throughput arrays to identify distinctive components of the …
Benefits Of Hpv Vaccination In Adolescent Males, Budd Theriot
Benefits Of Hpv Vaccination In Adolescent Males, Budd Theriot
Physician Assistant Scholarly Project Posters
HPV is the most common sexually transmitted infection in the United States, affecting approximately 75-80% of young adults at some point in their lives, and it is also known to be directly related to several forms of cancer including cervical, vaginal, penile, anal, oral, and oropharyngeal cancer. Vaccination against several high-risk strains of HPV first became available in the U.S. in June of 2006 and has been proven to be effective in creating antibodies against several strains of high-risk HPV, potentially decreasing and preventing more than 30,000 new cases of HPV related cancers each year. Despite this fact, HPV vaccination …
Urease Is An Essential Component Of The Acid Response Network Of Staphylococcus Aureus And Is Required For A Persistent Murine Kidney Infection, Chunyi Zhou, Fatema Bhinderwala, Mckenzie K. Lehman, Vinai Chittezham Thomas, Sujata S. Chaudhari, Kelsey J. Yamada, Kirk W. Foster, Robert Powers, Tammy Kielian, Paul D. Fey
Urease Is An Essential Component Of The Acid Response Network Of Staphylococcus Aureus And Is Required For A Persistent Murine Kidney Infection, Chunyi Zhou, Fatema Bhinderwala, Mckenzie K. Lehman, Vinai Chittezham Thomas, Sujata S. Chaudhari, Kelsey J. Yamada, Kirk W. Foster, Robert Powers, Tammy Kielian, Paul D. Fey
Journal Articles: Pathology and Microbiology
Staphylococcus aureus causes acute and chronic infections resulting in significant morbidity. Urease, an enzyme that generates NH3 and CO2 from urea, is key to pH homeostasis in bacterial pathogens under acidic stress and nitrogen limitation. However, the function of urease in S. aureus niche colonization and nitrogen metabolism has not been extensively studied. We discovered that urease is essential for pH homeostasis and viability in urea-rich environments under weak acid stress. The regulation of urease transcription by CcpA, Agr, and CodY was identified in this study, implying a complex network that controls urease expression in response to changes in metabolic …
Design And Characterization Of A Consensus Hemagglutinin Vaccine Immunogen Against H3 Influenza A Viruses Of Swine, Haiyan Sun, Jung-Hyang Sur, Sarah Vitosh-Sillman, David J. Steffen, Hiep Vu
Design And Characterization Of A Consensus Hemagglutinin Vaccine Immunogen Against H3 Influenza A Viruses Of Swine, Haiyan Sun, Jung-Hyang Sur, Sarah Vitosh-Sillman, David J. Steffen, Hiep Vu
Nebraska Center for Virology: Faculty Publications
The substantial genetic diversity exhibited by influenza A viruses of swine (IAV-S) represents the main challenge for the development of a broadly protective vaccine against this important pathogen. The consensus vaccine immunogen has proven an effective vaccinology approach to overcome the extraordinary genetic diversity of RNA viruses. In this project, we sought to determine if a consensus IAV-S hemagglutinin (HA) immunogen would elicit broadly protective immunity in pigs. To address this question, a consensus HA gene (designated H3-CON.1) was generated from a set of 1,112 H3 sequences of IAV-S recorded in GenBank from 2011 to 2015. The consensus HA gene …
Overview Of Direct Thrombin Inhibitors For Use In Staphylococcus Aereus Infections, Joseph C. Risler
Overview Of Direct Thrombin Inhibitors For Use In Staphylococcus Aereus Infections, Joseph C. Risler
Honors Undergraduate Theses
The pathogenicity and intractable nature of the microorganism Staphylococcus aureus (SA) has been long documented and highlighted by many health care agencies, with emphasis on its ability to exploit the human coagulation system to deadly effect. Two drugs from a class of inhibitors known as Direct Thrombin Inhibitors (DTI) have been shown to have a substantial effect on the enzyme secreted by SA known as Staphylocoagulase (SC), but up until now the application of this potential treatment has been limited. This paper strives to supply an overview of these clinical studies and propose a novel protocol for testing DTI's on …
Murine Mpdz-Linked Hydrocephalus Is Caused By Hyperpermeability Of The Choroid Plexus., Junning Yang, Claire Simonneau, Robert Kilker, Laura Oakley, Matthew D. Byrne, Zuzana Nichtova, Ioana Stefanescu, Fnu Pardeep-Kumar, Sushil Tripathi, Eric Londin, Pascale Saugier-Veber, Belinda Willard, Mathew Thakur, Stephen Pickup, Hiroshi Ishikawa, Horst Schroten, Richard Smeyne, Arie Horowitz
Murine Mpdz-Linked Hydrocephalus Is Caused By Hyperpermeability Of The Choroid Plexus., Junning Yang, Claire Simonneau, Robert Kilker, Laura Oakley, Matthew D. Byrne, Zuzana Nichtova, Ioana Stefanescu, Fnu Pardeep-Kumar, Sushil Tripathi, Eric Londin, Pascale Saugier-Veber, Belinda Willard, Mathew Thakur, Stephen Pickup, Hiroshi Ishikawa, Horst Schroten, Richard Smeyne, Arie Horowitz
Cardeza Foundation for Hematologic Research
Though congenital hydrocephalus is heritable, it has been linked only to eight genes, one of which is MPDZ Humans and mice that carry a truncated version of MPDZ incur severe hydrocephalus resulting in acute morbidity and lethality. We show by magnetic resonance imaging that contrast medium penetrates into the brain ventricles of mice carrying a Mpdz loss-of-function mutation, whereas none is detected in the ventricles of normal mice, implying that the permeability of the choroid plexus epithelial cell monolayer is abnormally high. Comparative proteomic analysis of the cerebrospinal fluid of normal and hydrocephalic mice revealed up to a 53-fold increase …
Long-Term Outcomes Of Neonatal Herpes Simplex Virus Infection And Treatment, Genesis M. Brador
Long-Term Outcomes Of Neonatal Herpes Simplex Virus Infection And Treatment, Genesis M. Brador
Honors Undergraduate Theses
The prevalence of herpes simplex virus (HSV) infection globally is high, and although there is no cure for it, the antiviral drug acyclovir is used to alleviate symptoms. There are two types of HSV: HSV-1, which typically infects the oral area, and HSV-2, which is associated with genital infections. A mother who carries the infection may transmit it to a neonate in different ways, most commonly via vaginal delivery in the presence of active lesions. There are three types of HSV disease that affect newborns: skin, eyes or mouth (SEM) disease, central nervous system (CNS) disease, or disseminated disease. The …
Structural Studies Of Some Proteins Responsible For Bacterial Pathogenesis, Kartik Manne
Structural Studies Of Some Proteins Responsible For Bacterial Pathogenesis, Kartik Manne
All ETDs from UAB
A wide range of infections is attributed to the pathogenesis of Gram-positive bacteria. The emergence of multi-drug-resistant Gram-positive pathogens has been a significant health concern and present serious therapeutic challenges globally. Some of the common Gram-positive bacterial species like Streptococcus pneumonia, Group B Streptococcus, and Staphylococcus aureus are infectious by employing several virulence factors for initial adhesion, colonization, biofilm initiation and dispersion, complement evasion, nutrient acquisition, and infection. The structural insights into these virulence factors are essential for understanding their mode of action, and also for developing a new class of antibiotics; a significant interest of many researchers. Pneumococcal adhesive …
Model-Based Methods To Translate Adolescent Medicine Trials Network For Hiv/Aids Interventions Findings Into Policy Recommendations: Rationale And Protocol For A Modeling Core (Atn 161), Anne M. Neilan, Kunjal Patel, Allison L. Agwu, Ingrid V. Bassett, K. Rivet Amico, Catherine M. Crespi, Aditya H. Gaur, Keith J. Horvath, Kimberly A. Powers, H. Jonathon Rendina, Lisa B. Hightow-Weidman, Xiaoming Li, Sylvie Naar, Sharon Nachman, Jeffrey T. Parsons, Kit N. Simpson, Bonita F. Stanton, Kenneth A. Freedberg, Audrey C. Bangs, Michael G. Hudgens, Andrea L. Ciaranello
Model-Based Methods To Translate Adolescent Medicine Trials Network For Hiv/Aids Interventions Findings Into Policy Recommendations: Rationale And Protocol For A Modeling Core (Atn 161), Anne M. Neilan, Kunjal Patel, Allison L. Agwu, Ingrid V. Bassett, K. Rivet Amico, Catherine M. Crespi, Aditya H. Gaur, Keith J. Horvath, Kimberly A. Powers, H. Jonathon Rendina, Lisa B. Hightow-Weidman, Xiaoming Li, Sylvie Naar, Sharon Nachman, Jeffrey T. Parsons, Kit N. Simpson, Bonita F. Stanton, Kenneth A. Freedberg, Audrey C. Bangs, Michael G. Hudgens, Andrea L. Ciaranello
Publications and Research
BACKGROUND: The United States Centers for Disease Control and Prevention estimates that approximately 60,000 US youth are living with HIV. US youth living with HIV (YLWH) have poorer outcomes compared with adults, including lower rates of diagnosis, engagement, retention, and virologic suppression. With Adolescent Medicine Trials Network for HIV/AIDS Interventions (ATN) support, new trials of youth-centered interventions to improve retention in care and medication adherence among YLWH are underway.
OBJECTIVE: This study aimed to use a computer simulation model, the Cost-Effectiveness of Preventing AIDS Complications (CEPAC)-Adolescent Model, to evaluate selected ongoing and forthcoming ATN interventions to improve viral load suppression …
Elevated Neutrophil To Lymphocyte Ratio As An Indicator Of Secondary Erythema Nodosum, A Retrospective Observational Study, Yildiz Hayran, Ayşe Öktem, Emi̇ne Buket Şahi̇n, Pinar İncel Uysal, Nuran Alli, Başak Yalçin
Elevated Neutrophil To Lymphocyte Ratio As An Indicator Of Secondary Erythema Nodosum, A Retrospective Observational Study, Yildiz Hayran, Ayşe Öktem, Emi̇ne Buket Şahi̇n, Pinar İncel Uysal, Nuran Alli, Başak Yalçin
Turkish Journal of Medical Sciences
Background/aim: Erythema nodosum (EN) is an inflammatory disorder of subcutaneous tissue. Although etiopathogenesis of the disease is unknown, many predisposing factors such as infections, systemic disease, and drugs have been identified. Neutrophil to lymphocyte ratio (NLR) has been shown to be a novel inflammatory marker in many dermatological diseases. The aim of our study is to investigate NLR in EN patients and evaluate its relation to the underlying cause of the disease.Materials and methods: Between 2014 and 2018, clinical and laboratory data of 395 patients diagnosed with EN and 395 controls were extracted from patient files. EN patients were grouped …
In Vitro Combination Of Tigecycline With Other Antibiotics In Stenotrophomonas Maltophilia Isolates, Di̇lek Karamanlioğlu, Murat Di̇zbay
In Vitro Combination Of Tigecycline With Other Antibiotics In Stenotrophomonas Maltophilia Isolates, Di̇lek Karamanlioğlu, Murat Di̇zbay
Turkish Journal of Medical Sciences
Background/aim: The aim of this study was to determine the usefulness of tigecycline in combination treatment of Stenotrophomonas maltophilia infections by evaluating the in vitro synergistic effects of tigecycline with various antibiotics using the E-test method.Materials and methods: Synergy testing by E-test was performed with various antibiotic combinations in 10 S. maltophilia isolates identified as a cause of infection. The antibiotics used in the study included tigecycline (TGC), cefoperazone-sulbactam (CPS), ceftazidime (TZ), levofloxacin (LEV), and trimethoprim-sulfamethoxazole (cotrimoxazole)(TS). Four different combinations (TGC-CPS, TGC-TZ, TGC-LEV, TGC-TS) were studied with the E-test synergy method. Results: S. maltophilia isolates were found to have the …
Effects Of Different Percentages Of Body Weight-Supported Treadmill Training In Parkinson's Disease: A Double-Blind Randomized Controlled Trial, Tuğba Atan, Özden Özyemi̇şci̇ Taşkiran, Ayşe Bora Tokçaer, Gülçi̇n Kaymak Karataş, Asli Karakuş Çalişkan, Belgi̇n Karaoğlan
Effects Of Different Percentages Of Body Weight-Supported Treadmill Training In Parkinson's Disease: A Double-Blind Randomized Controlled Trial, Tuğba Atan, Özden Özyemi̇şci̇ Taşkiran, Ayşe Bora Tokçaer, Gülçi̇n Kaymak Karataş, Asli Karakuş Çalişkan, Belgi̇n Karaoğlan
Turkish Journal of Medical Sciences
Background/aim: Body weight-supported treadmill training (BWSTT) might have greater effects than conventional treadmill training (TT) in neurological diseases such as Parkinson's disease (PD). The aim of this study was to evaluate the effects of different percentages of BWSTT on gait, balance, quality of life, and fatigue in PD.Materials and methods: Thirty-five patients with moderate to advanced PD were randomized into three BWSTT groups according to the supported percentage of body weight: 0% BWSTT (control group; unsupported TT), 10% BWSTT, or 20% BWSTT. Five patients were excluded due to early discharge and 30 patients completed BWSTT sessions lasting 30 min, 5 …
Natural Product Induction In Pencillium And Human Caspase Crystallography, Kelly J. Mcgrath
Natural Product Induction In Pencillium And Human Caspase Crystallography, Kelly J. Mcgrath
Graduate Student Theses, Dissertations, & Professional Papers
No abstract provided.
Novel Amphiphilic Cyclobutene And Cyclobutane Cis-C18 Fatty Acid Derivatives Inhibit Mycobacterium Avium Subsp. Paratuberculosis Growth, Denise K. Zinniel, Wantanee Sittiwong, Darrell D. Marshall, Govardhan Rathnaiah, Isin T. Sakallioglu, Robert Powers, Patrick H. Dussault, Raul G. Barletta
Novel Amphiphilic Cyclobutene And Cyclobutane Cis-C18 Fatty Acid Derivatives Inhibit Mycobacterium Avium Subsp. Paratuberculosis Growth, Denise K. Zinniel, Wantanee Sittiwong, Darrell D. Marshall, Govardhan Rathnaiah, Isin T. Sakallioglu, Robert Powers, Patrick H. Dussault, Raul G. Barletta
School of Veterinary and Biomedical Sciences: Faculty Publications
Mycobacterium avium subspecies paratuberculosis (Map) is the etiologic agent of Johne’s disease in ruminants and has been associated with Crohn’s disease in humans. An effective control of Map by either vaccines or chemoprophylaxis is a paramount need for veterinary and possibly human medicine. Given the importance of fatty acids in the biosynthesis of mycolic acids and the mycobacterial cell wall, we tested novel amphiphilic C10 and C18 cyclobutene and cyclobutane fatty acid derivatives for Map inhibition. Microdilution minimal inhibitory concentrations (MIC) with 5 or 7 week endpoints were measured in Middlebrook 7H9 base broth media. We compared the …
Investigation Of Congestive Heart Failure In Beef Cattle In A Feedyard At A Moderate Altitude In Western Nebraska, Rodney A. Moxley, David R. Smith, Dale M. Grotelueschen, Tom Edwards, David Steffen
Investigation Of Congestive Heart Failure In Beef Cattle In A Feedyard At A Moderate Altitude In Western Nebraska, Rodney A. Moxley, David R. Smith, Dale M. Grotelueschen, Tom Edwards, David Steffen
School of Veterinary and Biomedical Sciences: Faculty Publications
Right-sided congestive heart failure (brisket disease) commonly occurs in cattle raised at elevations >2,500– 3,500 m. We investigated clinical cases resembling brisket disease at a western Nebraska feedyard at a moderate altitude (1,369 m). Over a 15-mo period (2009–2010), we examined 17 cases (16 steers and 1 heifer), all purebred Angus. All animals had clinical right-sided heart failure: brisket and ventral abdominal edema, and severe chronic passive congestion of the liver. Gross examination confirmed right ventricular hypertrophy (left ventricle plus septum: right ventricle weight ratio mean: 1.33 vs. 2.8–4.0 reference interval). Microscopically, all 17 cases had interstitial fibrosis (mean score: …
Thymic Expression Of Il-4 And Il-15 After Systemic Inflammatory Or Infectious Th1 Disease Processes Induce The Acquisition Of"Innate" Characteristics During Cd8 + T Cell Development, Natalia S. Baez, Fabio Cerbán, Constanza Savid-Frontera, Deborah L. Hodge, Jimena Tosello, Eva Acosta-Rodriguez, Laura Almada, Adriana Gruppi, Maria Estefania Viano, Howard A. Young, Maria Cecilia Rodriguez-Galan
Thymic Expression Of Il-4 And Il-15 After Systemic Inflammatory Or Infectious Th1 Disease Processes Induce The Acquisition Of"Innate" Characteristics During Cd8 + T Cell Development, Natalia S. Baez, Fabio Cerbán, Constanza Savid-Frontera, Deborah L. Hodge, Jimena Tosello, Eva Acosta-Rodriguez, Laura Almada, Adriana Gruppi, Maria Estefania Viano, Howard A. Young, Maria Cecilia Rodriguez-Galan
United States Public Health Resources
Innate CD8 + T cells express a memory-like phenotype and demonstrate a strong cytotoxic capacity that is critical during the early phase of the host response to certain bacterial and viral infections. These cells arise in the thymus and depend on IL-4 and IL-15 for their development. Even though innate CD8 + T cells exist in the thymus of WT mice in low numbers, they are highly enriched in KO mice that lack certain kinases, leading to an increase in IL-4 production by thymic NKT cells. Our work describes that in C57BL/6 WT mice undergoing a Th1 biased infectious disease, …
Improving Access To Clean Water In Rural Ecuador: The Connection Between Willingness To Pay And Population Health, Micalea Leaska
Improving Access To Clean Water In Rural Ecuador: The Connection Between Willingness To Pay And Population Health, Micalea Leaska
Capstone Collection
Climate change is affecting social and environmental determinants of health through access to safe drinking water, safely managed sanitation systems, and access to health care services and the ability for individuals to break free from unsuitable circumstances. Ecological disturbances such as those caused by climate change can cause a shift in host vectors or a change in habitat that results in a greater likelihood of the pathogen coming in contact with humans. Water, sanitation, and hygiene (WASH) services and their accessibility to populations can directly impact a community’s vulnerability to diseases and limiting factors to increase economic growth. If rural …
8-Hydroxy-2'-Deoxyguanosine As A Biomarker Of Oxidative Stress In Acute Exacerbation Of Chronic Obstructive Pulmonary Disease, Xing Liu, Kaili Deng, Sixia Chen, Yunshi Zhang, Jing Yao, Xiaoqin Weng, Yang Zhang, Tianming Gao, Ganzhu Feng
8-Hydroxy-2'-Deoxyguanosine As A Biomarker Of Oxidative Stress In Acute Exacerbation Of Chronic Obstructive Pulmonary Disease, Xing Liu, Kaili Deng, Sixia Chen, Yunshi Zhang, Jing Yao, Xiaoqin Weng, Yang Zhang, Tianming Gao, Ganzhu Feng
Turkish Journal of Medical Sciences
8-Hydroxy-2'-deoxyguanosine (8-OHdG) is a biomarker of oxidative stress and has been implicated in many diseases. The aim of this study was to investigate the clinical value of plasma 8-OHdG level in patients with acute exacerbation of chronic obstructive pulmonary disease (AECOPD).Materials and methods: A total of 154 subjects were enrolled in this study, including 20 healthy volunteers, 24 COPD patients in the stable phase, and 110 AECOPD patients. Peripheral blood samples, demographic information, and clinical characteristics were collected from all subjects at the time of being recruited into the study. Plasma 8-OHdG level was detected by enzyme-linked immunosorbent assay.Results: 8-OHdG …
Evaluation Of Measles Immunity In Turkey: Is It Still A Threat?, Selda Karaayvaz, Melahat Melek Oğuz, Ufuk Beyazova, Fatma Gülay Korukluoğlu, Yasemi̇n Coşgun, Zeli̇ha Güzelküçük, Fatma Nur Baran Aksakal, Fi̇gen Şahi̇n Dağli
Evaluation Of Measles Immunity In Turkey: Is It Still A Threat?, Selda Karaayvaz, Melahat Melek Oğuz, Ufuk Beyazova, Fatma Gülay Korukluoğlu, Yasemi̇n Coşgun, Zeli̇ha Güzelküçük, Fatma Nur Baran Aksakal, Fi̇gen Şahi̇n Dağli
Turkish Journal of Medical Sciences
Background/aim: Measles is one of the important vaccine-preventable diseases with many complications in childhood. This study presents cross-sectional seroepidemiological data, beginning from neonatal cord blood in infants to children under 6 years of age, about waning of measles antibody and tries to suggest the proper time for measles immunization.Materials and methods: A total of 564 blood samples consisting of neonatal cord blood and samples taken from infants and children at ages of 6, 9, 24-48, and 49-72 months were analyzed for measles seropositivity in a period of 6 months. Results: Measles seropositivity rate was 72.5% in 109 cord blood samples, …
Neutrophil To Lymphocyte Ratio As A Predictor Of Treatment Response And Mortality In Septic Shock Patients In The Intensive Care Unit, Rabi̇a Sari, Zühal Karakurt, Mustafa Ay, Muhammed Emi̇n Çeli̇k, Ülgen Yalaz Tekan, Fulya Çi̇yi̇ltepe, Feyza Kargin, Cüneyt Saltürk, Özlem Yazicioğlu Moçi̇n, Gökay Güngör, Nalan Adigüzel
Neutrophil To Lymphocyte Ratio As A Predictor Of Treatment Response And Mortality In Septic Shock Patients In The Intensive Care Unit, Rabi̇a Sari, Zühal Karakurt, Mustafa Ay, Muhammed Emi̇n Çeli̇k, Ülgen Yalaz Tekan, Fulya Çi̇yi̇ltepe, Feyza Kargin, Cüneyt Saltürk, Özlem Yazicioğlu Moçi̇n, Gökay Güngör, Nalan Adigüzel
Turkish Journal of Medical Sciences
Background/aim: While C-reactive protein (CRP) is a well-studied marker for predicting treatment response and mortality in sepsis, it was aimed to assess the efficacy of the neutrophil lymphocyte ratio (NLR) as a predictor of mortality and treatment response in sepsis patients in the intensive care unit (ICU). Materials and methods: In this retrospective cross-sectional study, sepsis patients were divided according to the presence of septic shock on the 1st day of ICU stay, and then subgrouped according to mortality. Patient demographics, acute physiologic and chronic health evaluation II and sequential organ failure assessment scores, NLR and CRP (on the 1st, …
Serum Prolidase Level In Patients With Brucellosis And Its Possible Relationship With Pathogenesis Of The Disease: A Prospective Observational Study, Oğuzhan Sitki Di̇zdar, Ayşe Turunç Özdemi̇r, Osman Başpinar, Derya Koçer, Yavuz Katircilar, İlhami̇ Çeli̇k
Serum Prolidase Level In Patients With Brucellosis And Its Possible Relationship With Pathogenesis Of The Disease: A Prospective Observational Study, Oğuzhan Sitki Di̇zdar, Ayşe Turunç Özdemi̇r, Osman Başpinar, Derya Koçer, Yavuz Katircilar, İlhami̇ Çeli̇k
Turkish Journal of Medical Sciences
Background/aim: Changes in collagen metabolism and fibroblastic activity may play a role in the pathogenesis of brucellosis. The prolidase enzyme plays an important role in collagen synthesis. We aimed to investigate the association of prolidase levels with brucellosis.Materials and methods: Serum prolidase levels in 20 patients newly diagnosed with brucellosis were compared with levels in 30 healthy control subjects. Patients with brucellosis were reassessed 3 months later for prolidase, other laboratory measurements, and response to treatment. Results: The levels of serum prolidase were significantly higher in brucellosis patients compared with those of healthy controls. Prolidase, sedimentation, and C-reactive protein levels …
Fabp4 Levels In Hypothyroidism And Its Relationship With Subclinical Atherosclerosis, Mürşi̇de Tan, Hakan Korkmaz, Hüseyi̇n Aydin, Duygu Kumbul Doğuç
Fabp4 Levels In Hypothyroidism And Its Relationship With Subclinical Atherosclerosis, Mürşi̇de Tan, Hakan Korkmaz, Hüseyi̇n Aydin, Duygu Kumbul Doğuç
Turkish Journal of Medical Sciences
Background/aim: The aim of this study is to evaluate the relationship between serum fatty acid binding protein 4 (FABP4) levels and carotid intima media thickness (CIMT) in patients with hypothyroidism.Materials and methods: Forty subclinical hypothyroidism patients, 40 overt hypothyroidism patients, and 40 healthy controls were enrolled in the study. Blood pressure, body mass index, CIMT, fasting blood sugar, creatine, alanine aminotransferase, lipid parameters, insulin, free thyroxine, triiodothyronine, thyroid-stimulating hormone (TSH), thyroid peroxidase antibody (anti-TPO), thyroglobulin antibody (anti-TG), high-sensitivity C-reactive protein (Hs-CRP), and FABP4 levels of all participants were measured.Results: Serum FABP4 levels were significantly higher in patients with subclinical and …
Mice, Acorns, And Lyme Disease: A Case Study To Teach The Ecology Of Emerging Infectious Diseases, Laurieann Klockow
Mice, Acorns, And Lyme Disease: A Case Study To Teach The Ecology Of Emerging Infectious Diseases, Laurieann Klockow
Biomedical Sciences Faculty Research and Publications
Ebola, Zika, the recall of contaminated lettuce - these are just a few recent outbreaks making headlines. Students should be able to connect what they learn in their biology courses to explain these events happening around them. Unfortunately, students do not necessarily make those connections. Therefore, it is important, as instructors, to provide opportunities where students engage with societal issues and problems related to course content and case studies, using headlines from the news are one way to do this.
Here I describe a case study about Lyme disease that engages students in learning about the ecology of infectious disease. …