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Articles 271 - 300 of 892
Full-Text Articles in Pharmacy and Pharmaceutical Sciences
Opioid And Naloxone Training In A Rural School District, Allyson C. Waldron
Opioid And Naloxone Training In A Rural School District, Allyson C. Waldron
UNLV Theses, Dissertations, Professional Papers, and Capstones
The opioid epidemic is a national health emergency in the United States, with over 128 people dying each day due to an opioid overdose. It is estimated that 4.3 million people over the age of 12 use opioids without a medical need, and 1.3 million youth ages 12-17 use opioids inappropriately. Drug overdose deaths have become the leading cause of accidental death in the United States, prompting the U.S. Surgeon General and the World Health Organization to advise that more Americans have access to naloxone and understand how to use this life-saving drug correctly. Naloxone is an opioid antagonist, used …
Muc13 Enhances Colorectal Cancer Metastasis, Kyle Doxtater
Muc13 Enhances Colorectal Cancer Metastasis, Kyle Doxtater
Theses and Dissertations (ETD)
Colorectal cancer (CRC) is one of the most prevalent cancer worldwide with a 5% lifetime incidence in developed countries. It is third most common cause of cancer related death in the United States and the second deadliest when men and women are combined. Encouragingly due to changes in dietary lifestyle, screening colonoscopy, and advancement in treatments the mortality has decreased in recent years. Most sporadic CRCs develop from polyploid adenomas and are preceded by intramucosal carcinomas (stage 0), which can progress into more malignant forms. This developmental process is known as the adenoma-carcinoma sequence. Early detection and endoscopic removal are …
Ciliary Extracellular Vesicles Are Distinct From The Cytosolic Extracellular Vesicles, Ashraf M. Mohieldin, Rajasekharreddy Pala, Richard Beuttler, James J. Moresco, John R. Yates Iii, Surya M. Nauli
Ciliary Extracellular Vesicles Are Distinct From The Cytosolic Extracellular Vesicles, Ashraf M. Mohieldin, Rajasekharreddy Pala, Richard Beuttler, James J. Moresco, John R. Yates Iii, Surya M. Nauli
Pharmacy Faculty Articles and Research
Extracellular vesicles (EVs) are cell‐derived membrane vesicles that are released into the extracellular space. EVs encapsulate key proteins and mediate intercellular signalling pathways. Recently, primary cilia have been shown to release EVs under fluid‐shear flow, but many proteins encapsulated in these vesicles have never been identified. Primary cilia are ubiquitous mechanosensory organelles that protrude from the apical surface of almost all human cells. Primary cilia also serve as compartments for signalling pathways, and their defects have been associated with a wide range of human genetic diseases called ciliopathies. To better understand the mechanism of ciliopathies, it is imperative to know …
Suppression Of Human Coronavirus 229e Infection In Lung Fibroblast Cells Via Rna Interference, Hamidreza Montazeri Aliabadi, Jennifer Totonchy, Parvin Mahdipoor, Keykavous Parang, Hasan Uludağ
Suppression Of Human Coronavirus 229e Infection In Lung Fibroblast Cells Via Rna Interference, Hamidreza Montazeri Aliabadi, Jennifer Totonchy, Parvin Mahdipoor, Keykavous Parang, Hasan Uludağ
Pharmacy Faculty Articles and Research
Despite extensive efforts to repurpose approved drugs, discover new small molecules, and develop vaccines, COVID-19 pandemic is still claiming victims around the world. The current arsenal of antiviral compounds did not perform well in the past viral infections (e.g., SARS), which casts a shadow of doubt for use against the new SARS-CoV-2. Vaccines should offer the ultimate protection; however, there is limited information about the longevity of the generated immunity and the protection against possible mutations. This study uses Human Coronavirus 229E as a model coronavirus to test the hypothesis that effective delivery of virus-specific siRNAs to infected cells will …
C38: Exploring Doxorubicin-Mediated Hypertrophy And Cell Death In Primary Human Cardiomyocytes, Sonia Phan
C38: Exploring Doxorubicin-Mediated Hypertrophy And Cell Death In Primary Human Cardiomyocytes, Sonia Phan
Annual Research Symposium
No abstract provided.
S12: Assessing Ambulatory Care Pharmacist Interest In Scholarly Activities, Christopher O. Hernandez
S12: Assessing Ambulatory Care Pharmacist Interest In Scholarly Activities, Christopher O. Hernandez
Annual Research Symposium
No abstract provided.
Genetic Mechanisms Of Transcriptional Regulation In Childhood Acute Lymphoblastic Leukemia, Xujie Zhao
Genetic Mechanisms Of Transcriptional Regulation In Childhood Acute Lymphoblastic Leukemia, Xujie Zhao
Theses and Dissertations (ETD)
Introduction. Advances in genomic profiling and sequencing studies have identified germline and somatic variations that are associated with childhood ALL, improving our understanding of the genetic basis of childhood acute lymphoblastic leukemia (ALL). Recent genome-wide association studies (GWAS) have identified germline genetic variations of ARID5B and, more recently, IGF2BP1 that are associated with susceptibility to ALL. Genome-wide sequencing studies also discovered a new ALL subtype characterized of ZNF384-mediated chromosomal translocations, providing new insights into genetic heterogeneity in childhood ALL. However, the underlying mechanism by which these genetic variants contribute to the transcriptional regulatory circuitries of ALL is still poorly understood. …
Methamphetamine-Induced Changes In Myocardial Gene Transcription Are Sex-Dependent, Hasitha Chavva, Daniel A. Brazeau, James Denvir, Donald A. Primerano, Jun Fan, Sarah L. Seeley, Boyd R. Rorabaugh
Methamphetamine-Induced Changes In Myocardial Gene Transcription Are Sex-Dependent, Hasitha Chavva, Daniel A. Brazeau, James Denvir, Donald A. Primerano, Jun Fan, Sarah L. Seeley, Boyd R. Rorabaugh
Pharmaceutical Science and Research
Background: Prior work demonstrated that female rats (but not their male littermates) exposed to methamphetamine become hypersensitive to myocardial ischemic injury. Importantly, this sex-dependent effect persists following 30 days of subsequent abstinence from the drug, suggesting that it may be mediated by long term changes in gene expression that are not rapidly reversed following discontinuation of methamphetamine use. The goal of the present study was to determine whether methamphetamine induces sex-dependent changes in myocardial gene expression and whether these changes persist following subsequent abstinence from methamphetamine.
Results: Methamphetamine induced changes in the myocardial transcriptome were significantly greater in female hearts …
Anti‑Estrogenic And Anti‑Aromatase Activities Of Citrus Peels Major Compounds In Breast Cancer, Maha Salama, Dina Mahmoud Elkersh, Shahira M. Ezzat, Yasmeen Attiaa, Engy A. Mahrous, Mohey Elmazar
Anti‑Estrogenic And Anti‑Aromatase Activities Of Citrus Peels Major Compounds In Breast Cancer, Maha Salama, Dina Mahmoud Elkersh, Shahira M. Ezzat, Yasmeen Attiaa, Engy A. Mahrous, Mohey Elmazar
Pharmacy
Estrogen signaling is crucial for breast cancer initiation and progression. Endocrine-based therapies comprising estrogen receptor (ER) modulators and aromatase inhibitors remain the mainstay of treatment. This study aimed at investigating the antitumor potential of the most potent compounds in citrus peels on breast cancer by exploring their anti-estrogenic and anti-aromatase activities. The ethanolic extract of different varieties of citrus peels along with eight isolated flavonoids were screened against estrogen-dependent breast cancer cell lines besides normal cells for evaluating their safety profile. Naringenin, naringin and quercetin demonstrated the lowest IC50s and were therefore selected for further assays. In silico molecular modeling …
Sitosterolemia: Twenty Years Of Discovery Of The Function Of Abcg5abcg8, Kori Williams, Allison Segard, Gregory A. Graf
Sitosterolemia: Twenty Years Of Discovery Of The Function Of Abcg5abcg8, Kori Williams, Allison Segard, Gregory A. Graf
Pharmaceutical Sciences Faculty Publications
Sitosterolemia is a lipid disorder characterized by the accumulation of dietary xenosterols in plasma and tissues caused by mutations in either ABCG5 or ABCG8. ABCG5 ABCG8 encodes a pair of ABC half transporters that form a heterodimer (G5G8), which then traffics to the surface of hepatocytes and enterocytes and promotes the secretion of cholesterol and xenosterols into the bile and the intestinal lumen. We review the literature from the initial description of the disease, the discovery of its genetic basis, current therapy, and what has been learned from animal, cellular, and molecular investigations of the transporter in the twenty …
Apolipoprotein E Genotype-Dependent Nutrigenetic Effects To Prebiotic Inulin For Modulating Systemic Metabolism And Neuroprotection In Mice Via Gut-Brain Axis, Lucille M. Yanckello, Jared D. Hoffman, Ya-Hsuan Chang, Penghui Lin, Geetika Nehra, George Chlipala, Scott D. Mcculloch, Tyler C. Hammond, Andrew T. Yackzan, Andrew N. Lane, Stefan J. Green, Anika M. S. Hartz, Ai-Ling Lin
Apolipoprotein E Genotype-Dependent Nutrigenetic Effects To Prebiotic Inulin For Modulating Systemic Metabolism And Neuroprotection In Mice Via Gut-Brain Axis, Lucille M. Yanckello, Jared D. Hoffman, Ya-Hsuan Chang, Penghui Lin, Geetika Nehra, George Chlipala, Scott D. Mcculloch, Tyler C. Hammond, Andrew T. Yackzan, Andrew N. Lane, Stefan J. Green, Anika M. S. Hartz, Ai-Ling Lin
Sanders-Brown Center on Aging Faculty Publications
OBJECTIVE: The goal of the study was to identify the potential nutrigenetic effects to inulin, a prebiotic fiber, in mice with different human apolipoprotein E (APOE) genetic variants. Specifically, we compared responses to inulin for the potential modulation of the systemic metabolism and neuroprotection via gut-brain axis in mice with human APOE ϵ3 and ϵ4 alleles.
METHOD: We performed experiments with young mice expressing the human APOE3 (E3FAD mice and APOE4 gene (E4FAD mice). We fed mice with either inulin or control diet for 16 weeks starting from 3 months of age. We determined gut microbiome …
Interactions Of Neuroimmune Signaling And Glutamate Plasticity In Addiction, Cassandra D. Gipson, Scott Rawls, Michael D. Scofield, Benjamin M. Siemsen, Emma O. Bondy, Erin E. Maher
Interactions Of Neuroimmune Signaling And Glutamate Plasticity In Addiction, Cassandra D. Gipson, Scott Rawls, Michael D. Scofield, Benjamin M. Siemsen, Emma O. Bondy, Erin E. Maher
Family and Community Medicine Faculty Publications
Chronic use of drugs of abuse affects neuroimmune signaling; however, there are still many open questions regarding the interactions between neuroimmune mechanisms and substance use disorders (SUDs). Further, chronic use of drugs of abuse can induce glutamatergic changes in the brain, but the relationship between the glutamate system and neuroimmune signaling in addiction is not well understood. Therefore, the purpose of this review is to bring into focus the role of neuroimmune signaling and its interactions with the glutamate system following chronic drug use, and how this may guide pharmacotherapeutic treatment strategies for SUDs. In this review, we first describe …
Sars-Cov-2 Early Infection Signature Identified Potential Key Infection Mechanisms And Drug Targets, Yue Li, Ashley Duche, Michael R. Sayer, Don Roosan, Farid G. Khalafalla, Rennolds S. Ostrom, Jennifer Totonchy, Moom Roosan
Sars-Cov-2 Early Infection Signature Identified Potential Key Infection Mechanisms And Drug Targets, Yue Li, Ashley Duche, Michael R. Sayer, Don Roosan, Farid G. Khalafalla, Rennolds S. Ostrom, Jennifer Totonchy, Moom Roosan
Pharmacy Faculty Articles and Research
Background
The ongoing COVID-19 outbreak has caused devastating mortality and posed a significant threat to public health worldwide. Despite the severity of this illness and 2.3 million worldwide deaths, the disease mechanism is mostly unknown. Previous studies that characterized differential gene expression due to SARS-CoV-2 infection lacked robust validation. Although vaccines are now available, effective treatment options are still out of reach.
Results
To characterize the transcriptional activity of SARS-CoV-2 infection, a gene signature consisting of 25 genes was generated using a publicly available RNA-Sequencing (RNA-Seq) dataset of cultured cells infected with SARS-CoV-2. The signature estimated infection level accurately in …
Immunomodulatory Effects Of Azithromycin Revisited: Potential Applications To Covid-19, Vincent J. Venditto, Dalia Haydar, Ahmed K. Abdel-Latif, John C. Gensel, Michael I. Anstead, Michelle G. Pitts, Jarrod W. Creameans, Timothy J. Kopper, Chi Peng, David J. Feola
Immunomodulatory Effects Of Azithromycin Revisited: Potential Applications To Covid-19, Vincent J. Venditto, Dalia Haydar, Ahmed K. Abdel-Latif, John C. Gensel, Michael I. Anstead, Michelle G. Pitts, Jarrod W. Creameans, Timothy J. Kopper, Chi Peng, David J. Feola
Pharmaceutical Sciences Faculty Publications
The rapid advancement of the COVID-19 pandemic has prompted an accelerated pursuit to identify effective therapeutics. Stages of the disease course have been defined by viral burden, lung pathology, and progression through phases of the immune response. Immunological factors including inflammatory cell infiltration and cytokine storm have been associated with severe disease and death. Many immunomodulatory therapies for COVID-19 are currently being investigated, and preliminary results support the premise of targeting the immune response. However, because suppressing immune mechanisms could also impact the clearance of the virus in the early stages of infection, therapeutic success is likely to depend on …
Giving Pharmacists Provider Rights, Tanya E. Karwaki
Giving Pharmacists Provider Rights, Tanya E. Karwaki
Texas A&M Law Review
Changes to our health care system, robotics and health care mergers among them, are forcing pharmacists into expanded provider roles, yet federal policymakers are failing to act on these changes. State lawmakers are acting but not swiftly enough. A federal response, including recognizing pharmacists as health care providers and making them eligible for independent Medicare reimbursement, will be necessary to enable pharmacists to fill their role in our health care system. Policymakers have an opportunity now to respond proactively to a changing climate in health care by clarifying the boundaries on pharmacists’ services, particularly those boundaries regarding direct patient care …
Leucine Carboxyl Methyltransferase 1 Overexpression Protects Against Cognitive And Electrophysiological Impairments In Tg2576 App Transgenic Mice, Madhumathi Gnanaprakash, Agnieszka Staniszewski, Hong Zhang, Rose Pitstick, Michael P. Kavanaugh, Ottavio Arancio, Russell E. Nicholls
Leucine Carboxyl Methyltransferase 1 Overexpression Protects Against Cognitive And Electrophysiological Impairments In Tg2576 App Transgenic Mice, Madhumathi Gnanaprakash, Agnieszka Staniszewski, Hong Zhang, Rose Pitstick, Michael P. Kavanaugh, Ottavio Arancio, Russell E. Nicholls
Biomedical and Pharmaceutical Sciences Faculty Publications
Background: The serine/threonine protein phosphatase, PP2A, is thought to play a central role in the molecular pathogenesis of Alzheimer’s disease (AD), and the activity and substrate specificity of PP2A is regulated, in part, through methylation and demethylation of its catalytic subunit. Previously, we found that transgenic overexpression of the PP2A methyltransferase, LCMT-1, or the PP2A methylesterase, PME-1, altered the sensitivity of mice to impairments caused by acute exposure to synthetic oligomeric amyloid-β (Aβ).
Objective: Here we sought to test the possibility that these molecules also controlled sensitivity to impairments caused by chronically elevated levels of Aβ produced in vivo. …
Supplemental Ascorbate Diminishes Dna Damage Yet Depletes Glutathione And Increases Acute Liver Failure In A Mouse Model Of Hepatic Antioxidant System Disruption, Colin G. Miller, Jean A. Kundert, Justin R. Prigge, Julie A. Amato, Allison E. Perez, Lucia Coppo, Gabrielle N. Rizzo, Michael P. Kavanaugh, David J. Orlicky, Colin T. Shearn, Edward E. Schmidt
Supplemental Ascorbate Diminishes Dna Damage Yet Depletes Glutathione And Increases Acute Liver Failure In A Mouse Model Of Hepatic Antioxidant System Disruption, Colin G. Miller, Jean A. Kundert, Justin R. Prigge, Julie A. Amato, Allison E. Perez, Lucia Coppo, Gabrielle N. Rizzo, Michael P. Kavanaugh, David J. Orlicky, Colin T. Shearn, Edward E. Schmidt
Biomedical and Pharmaceutical Sciences Faculty Publications
Cellular oxidants are primarily managed by the thioredoxin reductase-1 (TrxR1)- and glutathione reductase (Gsr)-driven antioxidant systems. In mice having hepatocyte-specific codisruption of TrxR1 and Gsr (TrxR1/Gsr-null livers), methionine catabolism sustains hepatic levels of reduced glutathione (GSH). Although most mice with TrxR1/Gsr-null livers exhibit long-term survival, ~25% die from spontaneous liver failure between 4- and 7-weeks of age. Here we tested whether liver failure was ameliorated by ascorbate supplementation. Following ascorbate, dehydroascorbate, or mock treatment, we assessed survival, liver histology, or hepatic redox markers including GSH and GSSG, redox enzyme activities, and oxidative damage markers. Unexpectedly, rather than providing protection, ascorbate …
The Role Of Panx3 In Age-Associated And Injury-Induced Intervertebral Disc Degeneration, Meaghan Serjeant, Paxton M. Moon, Diana Quinonez, Silvia Penuela, Frank Beier, Cheryle A. Séguin
The Role Of Panx3 In Age-Associated And Injury-Induced Intervertebral Disc Degeneration, Meaghan Serjeant, Paxton M. Moon, Diana Quinonez, Silvia Penuela, Frank Beier, Cheryle A. Séguin
Physiology and Pharmacology Publications
© 2021 by the authors. Licensee MDPI, Basel, Switzerland. Pannexin 3 (Panx3) is a mechanosensitive, channel-forming glycoprotein implicated in the progression of post-traumatic osteoarthritis. Despite evidence for Panx3 expression in the intervertebral disc (IVD), its function in this cartilaginous joint structure remained unknown. Using Panx3 knockout mice, this study investigated the role of Panx3 in age-associated IVD degeneration and degeneration induced by annulus fibrosus (AF) needle puncture. Loss of Panx3 did not significantly impact the progression of age-associated histopathological IVD degeneration; however, loss of Panx3 was associated with decreased gene expression of Acan, Col1a1, Mmp13 and Runx2 and altered localization …
Label‑Free Spectral Imaging To Study Drug Distribution And Metabolism In Single Living Cells, Qamar Alshammari, Rajasekharreddy Pala, Nir Katzir, Surya M. Nauli
Label‑Free Spectral Imaging To Study Drug Distribution And Metabolism In Single Living Cells, Qamar Alshammari, Rajasekharreddy Pala, Nir Katzir, Surya M. Nauli
Pharmacy Faculty Articles and Research
During drug development, evaluation of drug and its metabolite is an essential process to understand drug activity, stability, toxicity and distribution. Liquid chromatography (LC) coupled with mass spectrometry (MS) has become the standard analytical tool for screening and identifying drug metabolites. Unlike LC/MS approach requiring liquifying the biological samples, we showed that spectral imaging (or spectral microscopy) could provide high-resolution images of doxorubicin (dox) and its metabolite doxorubicinol (dox’ol) in single living cells. Using this new method, we performed measurements without destroying the biological samples. We calculated the rate constant of dox translocating from extracellular moiety into the cell and …
The Mechanism Of Β-N-Methylamino-L-Alanine Inhibition Of Trna Aminoacylation And Its Impact On Misincorporation, Nien-Ching Han, Tammy J. Bullwinkle, Kaeli F. Loeb, Kym F. Faull, Kyle Mohler, Jesse Rinehart, Michael Ibba
The Mechanism Of Β-N-Methylamino-L-Alanine Inhibition Of Trna Aminoacylation And Its Impact On Misincorporation, Nien-Ching Han, Tammy J. Bullwinkle, Kaeli F. Loeb, Kym F. Faull, Kyle Mohler, Jesse Rinehart, Michael Ibba
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
β-N-methylamino-l-alanine (BMAA) is a nonproteinogenic amino acid that has been associated with neurodegenerative diseases, including amyotrophic lateral sclerosis (ALS) and Alzheimer's disease (AD). BMAA has been found in human protein extracts; however, the mechanism by which it enters the proteome is still unclear. It has been suggested that BMAA is misincorporated at serine codons during protein synthesis, but direct evidence of its cotranslational incorporation is currently lacking. Here, using LC-MS–purified BMAA and several biochemical assays, we sought to determine whether any aminoacyl-tRNA synthetase (aaRS) utilizes BMAA as a substrate for aminoacylation. Despite BMAA's previously predicted misincorporation at serine …
Patterns Of Cilia Gene Dysregulations In Major Psychiatric Disorders, Wedad Alhassen, Siwei Chen, Marquis Vawter, Brianna Kay Robbins, Henry Nguyen, Thant Nyi Myint, Yumiko Saito, Anton Schulmann, Surya M. Nauli, Olivier Civelli, Pierre Baldi, Amal Alachkar
Patterns Of Cilia Gene Dysregulations In Major Psychiatric Disorders, Wedad Alhassen, Siwei Chen, Marquis Vawter, Brianna Kay Robbins, Henry Nguyen, Thant Nyi Myint, Yumiko Saito, Anton Schulmann, Surya M. Nauli, Olivier Civelli, Pierre Baldi, Amal Alachkar
Pharmacy Faculty Articles and Research
Primary cilia function as cells' antennas to detect and transduce external stimuli and play crucial roles in cell signaling and communication. The vast majority of cilia genes that are causally linked with ciliopathies are also associated with neurological deficits, such as cognitive impairments. Yet, the roles of cilia dysfunctions in the pathogenesis of psychiatric disorders have not been studied. Our aim is to identify patterns of cilia gene dysregulation in the four major psychiatric disorders: schizophrenia (SCZ), autism spectrum disorder (ASD), bipolar disorder (BP), and major depressive disorder (MDD). For this purpose, we acquired differentially expressed genes (DEGs) from the …
[(Wr)8Wkβa]-Doxorubicin Conjugate: A Delivery System To Overcome Multi-Drug Resistance Against Doxorubicin, Khalid Zoghebi, Hamidreza Montazeri Aliabadi, Rakesh Kumar Tiwari, Keykavous Parang
[(Wr)8Wkβa]-Doxorubicin Conjugate: A Delivery System To Overcome Multi-Drug Resistance Against Doxorubicin, Khalid Zoghebi, Hamidreza Montazeri Aliabadi, Rakesh Kumar Tiwari, Keykavous Parang
Pharmacy Faculty Articles and Research
Doxorubicin (Dox) is an anthracycline chemotherapeutic agent used to treat breast, leukemia, and lymphoma malignancies. However, cardiotoxicity and inherent acquired resistance are major drawbacks, limiting its clinical application. We have previously shown that cyclic peptide [WR]9 containing alternate tryptophan (W) and arginine (R) residues acts as an efficient molecular transporter. An amphiphilic cyclic peptide containing a lysine (K) residue and alternative W and R was conjugated through a free side chain amino group with Dox via a glutarate linker to afford [(WR)8WKβA]-Dox conjugate. Antiproliferative assays were performed in different cancer cell lines using the conjugate and the …
Arginase 1 Insufficiency Precipitates Amyloid-Β Deposition And Hastens Behavioral Impairment In A Mouse Model Of Amyloidosis, Chao Ma, Jerry B. Hunt, Maj-Linda B. Selenica, Awa Sanneh, Leslie A. Sandusky-Beltran, Mallory Watler, Rana Daas, Andrii Kovalenko, Huimin Liang, Devon Placides, Chuanhai Cao, Xiaoyang Lin, Michael B. Orr, Bei Zhang, John C. Gensel, David J. Feola, Marcia N. Gordon, Dave Morgan, Paula C. Bickford, Daniel C. Lee
Arginase 1 Insufficiency Precipitates Amyloid-Β Deposition And Hastens Behavioral Impairment In A Mouse Model Of Amyloidosis, Chao Ma, Jerry B. Hunt, Maj-Linda B. Selenica, Awa Sanneh, Leslie A. Sandusky-Beltran, Mallory Watler, Rana Daas, Andrii Kovalenko, Huimin Liang, Devon Placides, Chuanhai Cao, Xiaoyang Lin, Michael B. Orr, Bei Zhang, John C. Gensel, David J. Feola, Marcia N. Gordon, Dave Morgan, Paula C. Bickford, Daniel C. Lee
Sanders-Brown Center on Aging Faculty Publications
Alzheimer’s disease (AD) includes several hallmarks comprised of amyloid-β (Aβ) deposition, tau neuropathology, inflammation, and memory impairment. Brain metabolism becomes uncoupled due to aging and other AD risk factors, which ultimately lead to impaired protein clearance and aggregation. Increasing evidence indicates a role of arginine metabolism in AD, where arginases are key enzymes in neurons and glia capable of depleting arginine and producing ornithine and polyamines. However, currently, it remains unknown if the reduction of arginase 1 (Arg1) in myeloid cell impacts amyloidosis. Herein, we produced haploinsufficiency of Arg1 by the hemizygous deletion in myeloid cells using Arg1 …
Drug Delivery Systems: Exploring Rheological Properties And Therapeutic Effect Of 5-Fu Chitosan Gel For Topical Wound Healing, Samuel Tetteh-Quarshie
Drug Delivery Systems: Exploring Rheological Properties And Therapeutic Effect Of 5-Fu Chitosan Gel For Topical Wound Healing, Samuel Tetteh-Quarshie
Theses, Dissertations and Capstones
Diabetic skin wound is a common complication of diabetes that occurs in about 15% of diabetic patients and often requires prolonged hospitalization for its management and treatment. Natural polymers are used for wound dressing due to their biological adhesiveness, non-toxicity, and biodegradable nature. 5-Fluorouracil (FU) has been shown to alter adipokine expression which is implicated in cutaneous wound repair. Thus, our overall objective was to investigate the utility of chitosan (CS) gel for topical delivery of 5-FU to treat diabetic wounds. We prepared chitosan gel (2% w/w) in serial dilutions of 5-FU (25μg/mL, 2.5μg/mL, 0.25μg/mL, and 0.025μg/mL) and evaluated their …
Immunostimulatory Membrane Proteins Potentiate H. Pylori-Induced Carcinogenesis By Enabling Caga Translocation, Matthew G. Varga, Cecily R. Wood, Julia Butt, Mackenzie E. Ryan, Wei-Cheng You, Kaifeng Pan, Tim Waterboer, Meira Epplein, Carrie L. Shaffer
Immunostimulatory Membrane Proteins Potentiate H. Pylori-Induced Carcinogenesis By Enabling Caga Translocation, Matthew G. Varga, Cecily R. Wood, Julia Butt, Mackenzie E. Ryan, Wei-Cheng You, Kaifeng Pan, Tim Waterboer, Meira Epplein, Carrie L. Shaffer
Veterinary Science Faculty Publications
Infection with Helicobacter pylori is the single greatest risk factor for developing gastric adenocarcinoma. In prospective, population-based studies, seropositivity to the uncharacterized H. pylori proteins Hp0305 and Hp1564 was significantly associated with cancer risk in East Asia. However, the mechanism underlying this observation has not been elucidated. Here, we show that Hp0305 and Hp1564 act in concert with previously ascribed H. pylori virulence mechanisms to orchestrate cellular alterations that promote gastric carcinogenesis. In samples from 546 patients exhibiting premalignant gastric lesions, seropositivity to Hp0305 and Hp1564 was significantly associated with increased gastric atrophy across all stomach conditions. In vitro, …
Opioid Use Disorder: The Timeline For Medication Assisted Therapy, Alexander Cristofori
Opioid Use Disorder: The Timeline For Medication Assisted Therapy, Alexander Cristofori
Capstone Showcase
Opioid Use Disorder is patterns of opioid use leading to withdrawal, giving up important life events in order to use opioids, and excessive time spent using opioids, to name a few diagnostic criteria. The clinical progression of the disorder involves periods of acute exacerbation and remission that are cyclic in nature. Treatment is most effective when it includes both pharmacological and psychosocial modalities, referred to as medication assisted therapy (MAT). Three drugs used commonly in MAT-based treatment for OUD from oldest to newest include Methadone, Buprenorphine-naloxone, and Naltrexone. Treatment program models that prioritize total abstinence from the addictive substance attached …
Glycosaminoglycan Modulation Of Key Proteins In Alzheimer's Disease, Tamim Chiba
Glycosaminoglycan Modulation Of Key Proteins In Alzheimer's Disease, Tamim Chiba
Theses and Dissertations
Glycosaminoglycans (GAGs) are linear polysaccharides whose disaccharide building blocks consist of an amino sugar (D-glucosamine) and either uronic acid (D-glucuronic acid or L-iduronic acid) or galactose. Nearly all GAGs (with the exception of hyaluronic acid) are covalently attached to proteins, forming proteoglycans, and are ubiquitous in nature. The monomeric units, chain length, degree and pattern of sulfation, and epimerization are important properties that determine the influence of these molecules. Through Coulombic forces, hydrogen bonds and hydrophobic interactions, they regulate many physiological and pathophysiological processes such as blood coagulation, cell growth and differentiation, inflammatory processes, host defense and viral infection mechanisms. …
Bypassing The Blood-Brain Barrier: A Physical And Pharmacological Approach For The Treatment Of Metastatic Brain Tumors, Samuel A. Sprowls
Bypassing The Blood-Brain Barrier: A Physical And Pharmacological Approach For The Treatment Of Metastatic Brain Tumors, Samuel A. Sprowls
Graduate Theses, Dissertations, and Problem Reports (ETD)
This dissertation (a) provided an in depth literature review of methods to disrupt the BBB/BTB and improve therapeutic distribution to brain tumors, (b) evaluated the use of azacitidine as a single agent therapy for the treatment of brain metastasis of breast cancer and a potential molecular mechanism by which brain tropic cells are sensitized to hypomethylating agents, (c) determined the impact cannabidiol has on P-glycoprotein mediated efflux at the blood-brain barrier and its potential for use as a single agent treatment for metastatic brain tumors, (d) developed a preclinical radiation therapy protocol for use in small animals and in vitro …
Recovery Of Hippocampal-Dependent Learning Despite Blunting Reactive Adult Neurogenesis After Alcohol Dependence, Chelsea G. Nickell, K. Ryan Thompson, James R. Pauly, Kimberly Nixon
Recovery Of Hippocampal-Dependent Learning Despite Blunting Reactive Adult Neurogenesis After Alcohol Dependence, Chelsea G. Nickell, K. Ryan Thompson, James R. Pauly, Kimberly Nixon
Pharmaceutical Sciences Faculty Publications
Background:
The excessive alcohol drinking that occurs in alcohol use disorder (AUD) causes neurodegeneration in regions such as the hippocampus, though recovery may occur after a period of abstinence. Mechanisms of recovery are not clear, though reactive neurogenesis has been observed in the hippocampal dentate gyrus following alcohol dependence and correlates to recovery of granule cell number.
Objective:
We investigated the role of neurons born during reactive neurogenesis in the recovery of hippocampal learning behavior after 4-day binge alcohol exposure, a model of an AUD. We hypothesized that reducing reactive neurogenesis would impair functional recovery.
Methods:
Adult male rats were …
Honey Vs. Silver Sulfadiazine In The Reepithelialization Of Partial-Thickness Burn Wounds, Andi Diamond, Monica Bowler
Honey Vs. Silver Sulfadiazine In The Reepithelialization Of Partial-Thickness Burn Wounds, Andi Diamond, Monica Bowler
Physician Assistant Capstones, 2020-current
Objective: To determine whether silver sulfadiazine (SSD) should remain the gold standard of initial burn wound treatment or if it should be replaced with an alternative treatment that allows for faster skin cell regrowth. Methods: Database search of PubMed and Google Scholar were used to evaluate patient clinical trials with the search terms “burn”, “honey”, and “silver”. Results: Three trials met inclusion criteria. All three of the studies found significant improvement in their primary endpoint with the use of honey. The first study showed the honey group to have healing time of 13.47 ± 4.06 days and …