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Articles 421 - 450 of 892
Full-Text Articles in Pharmacy and Pharmaceutical Sciences
Pharmacogenetic Implications Regarding Second Generation Antipsychotics Clozapine And Risperidone, Sarah E. Ginty, Amy Pasternak, Lauren Desko, Jamie Amero, David Kisor
Pharmacogenetic Implications Regarding Second Generation Antipsychotics Clozapine And Risperidone, Sarah E. Ginty, Amy Pasternak, Lauren Desko, Jamie Amero, David Kisor
Pharmacy and Wellness Review
Pharmacogenomics is a growing area of pharmacy that has the potential to improve individualization of medication choices, dosing and predictability of side effects. Clozapine and risperidone are atypical antipsychotics whose metabolism, efficacy and side effects are influenced by single nucleotide polymorphisms (SNPs) in a patient's genetic makeup. It has been shown that a polymorphism in the D3 dopamine receptor is associated with an increased risk in developing tardive dyskinesia as an adverse event while taking risperidone. Also, there is evidence that a patient with a homogenous C genotype in the gene coding for the 5-HTzc receptor has a higher risk …
Effects Of Hormone Therapy On Cognition In Post-Menopausal Women, Jessica Langhals, Megan Meyer, Erica Schoenberger, Amanda Meyer, Kristen Finley Sobota
Effects Of Hormone Therapy On Cognition In Post-Menopausal Women, Jessica Langhals, Megan Meyer, Erica Schoenberger, Amanda Meyer, Kristen Finley Sobota
Pharmacy and Wellness Review
Menopause occurs as a result of decreased natural estrogen production by the body. A variety of short-term and long-term symptoms can occur during menopause, which may significantly impact a woman's daily life. Hormone therapy (HT) is commonly employed to alleviate these unwanted symptoms and to regain balance of hormone levels. Options include estrogen-only or estrogen-progestin combination therapy. While HT may help relieve symptoms such as cognitive decline caused by menopause, it also carries potential side effects. Although HT has shown a potential benefit in women with Alzheimer's disease (AD), overall outcomes measuring cognitive function improvement are inconclusive. Therefore, HT should …
The Use Of Crizotinib In Late Stage Lung Cancer Patients With An Abnormal Alk Gene, Lara Long, Kelly Dye, Courtney Porter, Ellen Hazelet, Karen L. Kier
The Use Of Crizotinib In Late Stage Lung Cancer Patients With An Abnormal Alk Gene, Lara Long, Kelly Dye, Courtney Porter, Ellen Hazelet, Karen L. Kier
Pharmacy and Wellness Review
The relatively new anti-cancer drug, crizotinib (Xalkori®, Pfizer), has created excitement in the research community. This drug has exhibited dramatic clinical benefits for select non-small cell lung cancer patients showing evidence of a mutation in the EML4-ALK gene. This gene mutation is present in 4 to 5 percent of non-small cell lung cancer patients. Crizotinib acts through a tyrosine kinase inhibition pathway, targeting the ALK and MET tyrosine kinases, to inhibit phosphorylation of activated ALK, which halts the ALK gene mutation and impedes metastasis. In phase I clinical trials, a 57 percent overall response rate was shown, and researchers calculated …
Lithium Therapy In Alzheimer's Disease, Ross Robison, Sara Swick, Lauren Bajbus, Jennifer Bauer, B. Shane Martin
Lithium Therapy In Alzheimer's Disease, Ross Robison, Sara Swick, Lauren Bajbus, Jennifer Bauer, B. Shane Martin
Pharmacy and Wellness Review
Alzheimer's disease (AD) is a neurodegenerative disorder with no known cure which has a strong impact on patients and their caregivers. Current treatments for AD can slow the disease progression, but cannot reverse the damage that has already been done, resulting in some level of lifelong disability for affected patients. The use of lithium has shown promising results in mice models of AD. While animal models have produced positive results, additional human trials need to be conducted in order to determine a place for lithium in Alzheimer's disease therapy. Pharmacists should be aware of this potential new use of lithium …
Safety And Efficacy Of Human Chorionic Gonadotropin (Hcg) In Weight Loss, Todd A. Tucker Jr., Justin W. Steele, Amanda Hoersten, Amanda Meyer, Sandra L. Hrometz
Safety And Efficacy Of Human Chorionic Gonadotropin (Hcg) In Weight Loss, Todd A. Tucker Jr., Justin W. Steele, Amanda Hoersten, Amanda Meyer, Sandra L. Hrometz
Pharmacy and Wellness Review
Human Chorionic Gonadotropin (hCG) has recently experienced a resurgence in popular media. Late night television commercials and Internet advertisements have suggested that it is an essential, unequivocal means to losing weight fast. ls hCG really a miracle cure to help patients shed unwanted pounds? In 1954, A.T.W. Simeons claimed that hCG impacts weight loss by decreasing hunger, increasing fat redistribution, and increasing overall mood. Knowing that weight loss cannot be directly attributed to hCG use, Simeons developed a very low calorie diet (VLCD) to which the success of the therapy can be attributed. He saw hCG as a means to …
Fidaxomicin (Dificid®): New Antibiotic Approved For The Treatment Of Clostridium Difficile Infections, Sara M. Mcallister, Zachary Crawford, Joshua Ilenin, Ellen Hazelet, Andrew M. Roecker
Fidaxomicin (Dificid®): New Antibiotic Approved For The Treatment Of Clostridium Difficile Infections, Sara M. Mcallister, Zachary Crawford, Joshua Ilenin, Ellen Hazelet, Andrew M. Roecker
Pharmacy and Wellness Review
Clostridium difficile is a gram-positive, spore forming bacteria normally transmitted by the fecal-oral route. Infection develops in patients with decreased normal gut flora and is typically associated with recent antibiotic use. Other risk factors include bowel surgery, compromised immune system function, extended hospital stays, and other underlying diseases. C. difficile bacteria produce two toxins, which cause increased intestinal fluid secretion and inflammation. Patients commonly present with diarrhea, abdominal discomfort, loss of appetite, and nausea. Current treatment guidelines are to discontinue antimicrobial agents and increase hydration. Less severe C. difficile associated diarrhea (CDAD) cases are treated with metronidazole 500 mg three …
The Emerging Role Of Ticagrelor In Acute Coronary Syndromes, Jennifer Bauer, Brittany Dye, Kimberly Baucher, Megan Keller, David Bright, Karen L. Kier
The Emerging Role Of Ticagrelor In Acute Coronary Syndromes, Jennifer Bauer, Brittany Dye, Kimberly Baucher, Megan Keller, David Bright, Karen L. Kier
Pharmacy and Wellness Review
Antiplatelet therapy has become a mainstay in the treatment of acute coronary syndromes (ACS). Until recently, options were somewhat limited when it came to individualizing drug selection. Plavix® (clopidogrel) has been successfully used for many years but requires activation by CYP enzymes. Depending on an individual patient's genetic makeup, function of these CYP enzymes may be altered, which may increase the risk for clots. The recent approval of Effient® (prasugrel) and Brilinta® (ticagrelor) has provided physicians and pharmacists with more options and may hopefully lead to improved clinical outcomes. Ticagrelor specifically exhibits clinically different pharmacologic characteristics that require twice daily …
Exposure To The Rxr Agonist Sr11237 In Early Life Causes Disturbed Skeletal Morphogenesis In A Rat Model, Holly Dupuis, Michael Andrew Pest, Ermina Hadzic, Thin Xuan Vo, Daniel B. Hardy, Frank Beier
Exposure To The Rxr Agonist Sr11237 In Early Life Causes Disturbed Skeletal Morphogenesis In A Rat Model, Holly Dupuis, Michael Andrew Pest, Ermina Hadzic, Thin Xuan Vo, Daniel B. Hardy, Frank Beier
Physiology and Pharmacology Publications
© 2019 by the authors. Licensee MDPI, Basel, Switzerland. Longitudinal bone growth occurs through endochondral ossification (EO), controlled by various signaling molecules. Retinoid X Receptor (RXR) is a nuclear receptor with important roles in cell death, development, and metabolism. However, little is known about its role in EO. In this study, the agonist SR11237 was used to evaluate RXR activation in EO. Rats given SR11237 from post-natal day 5 to post-natal day 15 were harvested for micro-computed tomography (microCT) scanning and histology. In parallel, newborn CD1 mouse tibiae were cultured with increasing concentrations of SR11237 for histological and whole-mount evaluation. …
Effects Of Dabigatran In Mouse Models Of Aging And Cerebral Amyloid Angiopathy, Neethu Michael, Mher Mahoney Grigoryan, Kelley Kilday, Rachita K. Sumbria, Vitaly Vasilevko, Joanne Van Ryn, David H. Cribbs, Annlia Paganini-Hill, Mark J. Fisher
Effects Of Dabigatran In Mouse Models Of Aging And Cerebral Amyloid Angiopathy, Neethu Michael, Mher Mahoney Grigoryan, Kelley Kilday, Rachita K. Sumbria, Vitaly Vasilevko, Joanne Van Ryn, David H. Cribbs, Annlia Paganini-Hill, Mark J. Fisher
Pharmacy Faculty Articles and Research
Oral anticoagulants are a critical component of stroke prevention, but carry a risk of brain hemorrhage. These hemorrhagic complications tend to occur in elderly individuals, especially those with predisposing conditions such as cerebral amyloid angiopathy (CAA). Clinical evidence suggests that non-vitamin K antagonist oral anticoagulants are safer than traditional oral anticoagulants. We analyzed whether the anticoagulant dabigatran produces cerebral microhemorrhage (the pathological substrate of MRI-demonstrable cerebral microbleeds) or intracerebral hemorrhage in aged mice with and without hemorrhage-predisposing angiopathy. We studied aged (22 months old) Tg2576 (a model of CAA) and wild-type (WT) littermate mice. Mice received either dabigatran etexilate (DE) …
Sipuleucel-T (Provenge®): Therapeutic Use And Financial Implications, Courtney Porter, Joshua Ilenin, Lisa Berni, Ashley Overy, Karen L. Kier
Sipuleucel-T (Provenge®): Therapeutic Use And Financial Implications, Courtney Porter, Joshua Ilenin, Lisa Berni, Ashley Overy, Karen L. Kier
Pharmacy and Wellness Review
Although mortality rates have been declining, prostate cancer accounts for a large percentage of cancer diagnoses around the world. Sipuleucel-T (Provenge®), an autologous cellular immunotherapy targeted against the antigen expressed in most prostate cancers, has been shown to increase the median survival rate of castration-resistant prostate cancer. Even so, the therapeutic risks and benefits, as well as financial implications, all currently play a role in the governmental decision to reimburse for this new therapy.
The Pharmacogenetics Of Opioid Pain Management, Maryanne Ventura, Lauren Desko, Kimberly Gathers, Ashley Overy, David Kisor
The Pharmacogenetics Of Opioid Pain Management, Maryanne Ventura, Lauren Desko, Kimberly Gathers, Ashley Overy, David Kisor
Pharmacy and Wellness Review
High rates of interpatient variability in drug metabolism and drug response for nearly all medications lead to the hypothesis that assessment of an individual patient's genotype with respect to their ability metabolize certain drugs can be a useful tool in predicting a patient's responsiveness to certain medications. Evaluating patients using pharmacogenomics as a basis for assessment could allow pharmacists to decide which treatment options would be most efficacious in a given patient and, thereby, have significant impact in the clinical setting. This holds true especially in the case of prodrugs, which require in vivo activation to an active or more …
Pediatric Poisoning: Overview, Treatment, And Prevention, Margaret Rowland, Taylor Gauthier, Kaitlin Sanders, Caitlin Swann, David Bright
Pediatric Poisoning: Overview, Treatment, And Prevention, Margaret Rowland, Taylor Gauthier, Kaitlin Sanders, Caitlin Swann, David Bright
Pharmacy and Wellness Review
Pediatric poisoning remains a common and preventable occurrence in the United States. Every year, prescription and over-the-counter medications account for a significant portion of documented poison exposures. Frequent causes of overdose in children include improper medication storage and caregiver or physician dosing error. As easily accessible medication experts, pharmacists have an opportunity to counsel patients in an effort to decrease these preventable poisoning cases. Because children frequently ingest products prescribed for adult use, pharmacist should relay safety considerations to all patients, regardless of age. This article provides a general review of toxicity concerns, discusses clinical implications of common medications resulting …
Will New Mrsa Guidelines Make A Difference In Clinical Outcomes? A Comparison Of United States And United Kingdom Guidelines And Outcomes, Kelly Fargo, Erica Schoenberger, Kristen Thatcher, Lindsey Hallman, Andrew Roecker, Tarek Mahfouz
Will New Mrsa Guidelines Make A Difference In Clinical Outcomes? A Comparison Of United States And United Kingdom Guidelines And Outcomes, Kelly Fargo, Erica Schoenberger, Kristen Thatcher, Lindsey Hallman, Andrew Roecker, Tarek Mahfouz
Pharmacy and Wellness Review
As of February 2011, the Infectious Disease Society of America (IDSA) published the first guidelines assessing the treatment of methicillin-resistant Staphylococcus aureus (MRSA) infections. S. aureus is present in the environment and is also located on the skin's surface. MRSA can cause a variety of clinical syndromes presenting with different symptoms that vary with the type and stage of the infection. MRSA is also classified into community-acquired MRSA (CA-MRSA) and hospital-acquired (HA-MRSA), both of which possess different treatment options and strategies. Due to the complex treatment of MRSA, as well the concern over the development of resistance, suggested treatment guidelines …
Preparing For The Genomic Age: Thiopurine S-Methytransferase Polymorphism, Hilary Stewart, Lisa Berni, Tyler Bulcher, Joel Rittenhouse, Ryan W. Naseman
Preparing For The Genomic Age: Thiopurine S-Methytransferase Polymorphism, Hilary Stewart, Lisa Berni, Tyler Bulcher, Joel Rittenhouse, Ryan W. Naseman
Pharmacy and Wellness Review
Interpatient variability among medication doses has been a long-standing obstacle for many prescribers. Some medications result in increased morbidity and mortality in a small percentage of the population. For many years, the cause of such toxicities was unknown. This mystery has been resolved by the discovery that the abscence or abnormality of specific genes that code for receptros, drug-treated proteins, drug transport mechanisms, and drug metabolizing enzymes could alter how an affected individual will respond to a given drug. One such incidence is the genetic polymorphism in thiopurine s-methytransferase (TPMT). In comprehending the mechanism of this polymorphism, it is important …
Drug Interactions And Pharmacogenetic Factors Contribute To Variation In Apixaban Concentration In Atrial Fibrillation Patients In Routine Care, Markus Gulilat, Denise Keller, Bradley Linton, A. Demetri Pananos, Daniel Lizotte, George K. Dresser, Jeffrey Alfonsi, Rommel G. Tirona, Richard B. Kim, Ute I. Schwarz
Drug Interactions And Pharmacogenetic Factors Contribute To Variation In Apixaban Concentration In Atrial Fibrillation Patients In Routine Care, Markus Gulilat, Denise Keller, Bradley Linton, A. Demetri Pananos, Daniel Lizotte, George K. Dresser, Jeffrey Alfonsi, Rommel G. Tirona, Richard B. Kim, Ute I. Schwarz
Physiology and Pharmacology Publications
Factor Xa-inhibitor apixaban is an oral anticoagulant prescribed in atrial fibrillation (AF) for stroke prevention. Its pharmacokinetic profile is known to be affected by cytochrome P450 (CYP)3A metabolism, while it is also a substrate of the efflux transporters ATP-binding cassette (ABC)B1 (P-glycoprotein) and ABCG2 (breast cancer resistance protein, BCRP). In this study, we assessed the impact of interacting medication and pharmacogenetic variation to better explain apixaban concentration differences among 358 Caucasian AF patients. Genotyping (ABCG2, ABCB1, CYP3A4*22, CYP3A5*3) was performed by TaqMan assays, and apixaban quantified by mass spectrometry. The typical patient was on average …
No Meaningful Drug Interactions With Doravirine, Lamivudine And Tenofovir Disoproxil Fumarate Co-Administration., Matt S. Anderson, Jocelyn Gilmartin, Li Fan, Ka Lai Yee, Walter K. Kraft, Ilias Triantafyllou, Christina Reitmann, Ying Guo, Rachael Liu, Marian Iwamoto
No Meaningful Drug Interactions With Doravirine, Lamivudine And Tenofovir Disoproxil Fumarate Co-Administration., Matt S. Anderson, Jocelyn Gilmartin, Li Fan, Ka Lai Yee, Walter K. Kraft, Ilias Triantafyllou, Christina Reitmann, Ying Guo, Rachael Liu, Marian Iwamoto
Department of Pharmacology and Experimental Therapeutics Faculty Papers
BACKGROUND: Doravirine (DOR) is a novel non-nucleoside reverse transcriptase inhibitor available as a single tablet and a three-drug combination with lamivudine (3TC) and tenofovir disoproxil fumarate (TDF) to treat HIV-1 infection. These analyses assessed pharmacokinetic (PK) interactions with co-administration.
METHODS: Two trials were conducted. Study 1: two-period, fixed-sequence; 8 healthy participants; Period 1, DOR 100 mg followed by ≥7-day washout; Period 2, TDF 300 mg once daily for 18 days, co-administration of DOR 100 mg on day 14. Study 2: three-period, crossover, 15 healthy participants; Treatment A, DOR 100 mg; Treatment B, 3TC 300 mg + TDF 300 mg; Treatment …
N-Glycosylation-Defective Splice Variants Of Neuropilin-1 Promote Metastasis By Activating Endosomal Signals, Xiuping Huang, Qing Ye, Min Chen, Aimin Li, Wenting Mi, Yuxin Fang, Yekaterina Y. Zaytseva, Kathleen L. O'Connor, Craig W. Vander Kooi, Side Liu, Qing-Bai She
N-Glycosylation-Defective Splice Variants Of Neuropilin-1 Promote Metastasis By Activating Endosomal Signals, Xiuping Huang, Qing Ye, Min Chen, Aimin Li, Wenting Mi, Yuxin Fang, Yekaterina Y. Zaytseva, Kathleen L. O'Connor, Craig W. Vander Kooi, Side Liu, Qing-Bai She
Markey Cancer Center Faculty Publications
Neuropilin-1 (NRP1) is an essential transmembrane receptor with a variety of cellular functions. Here, we identify two human NRP1 splice variants resulting from the skipping of exon 4 and 5, respectively, in colorectal cancer (CRC). Both NRP1 variants exhibit increased endocytosis/recycling activity and decreased levels of degradation, leading to accumulation on endosomes. This increased endocytic trafficking of the two NRP1 variants, upon HGF stimulation, is due to loss of N-glycosylation at the Asn150 or Asn261 site, respectively. Moreover, these NRP1 variants enhance interactions with the Met and β1-integrin receptors, resulting in Met/β1-integrin co-internalization and co-accumulation on endosomes. This provides persistent …
A Background Of The Opioid Epidemic And Its Relationship To The Medicaid Expansion, Er Yearn Jang
A Background Of The Opioid Epidemic And Its Relationship To The Medicaid Expansion, Er Yearn Jang
Montview Journal of Research & Scholarship
This paper provides a background to the opioid epidemic in the United States. The opioid epidemic, a public health crisis, is perceived by the public to be caused by issues in the medical field. By providing a historical background to the epidemic, this study demonstrates that the beginnings of the opioid crisis were not only rooted in past issues within the healthcare field but in previous social misconceptions about opioids. This historical backdrop is proceeded by an examination of opioid pharmacology, which discusses what opioids are, what is currently known about opioid addiction and reviews the presently used treatments for …
Nuclear Magnetic Resonance Solution Structure And Functional Behavior Of The Human Proton Channel, Monika Bayrhuber, Innokentiy Maslennikov, Witek Kwiatkowski, Alexander Sobol, Christoph Wierschem, Cédric Eichmann, Lukas Frey, Roland Riek
Nuclear Magnetic Resonance Solution Structure And Functional Behavior Of The Human Proton Channel, Monika Bayrhuber, Innokentiy Maslennikov, Witek Kwiatkowski, Alexander Sobol, Christoph Wierschem, Cédric Eichmann, Lukas Frey, Roland Riek
Pharmacy Faculty Articles and Research
The human voltage-gated proton channel [Hv1(1) or VSDO(2)] plays an important role in the human innate immune system. Its structure differs considerably from those of other cation channels. It is built solely of a voltage-sensing domain and thus lacks the central pore domain, which is essential for other cation channels. Here, we determined the solution structure of an N- and C-terminally truncated human Hv1 (Δ-Hv1) in the resting state by nuclear magnetic resonance (NMR) spectroscopy. Δ-Hv1 comprises the typical voltage-sensing antiparallel four-helix bundle (S1–S4) preceded by an amphipathic helix (S0). The solution structure corresponds to an intermediate …
Edb-Fn Targeted Peptide–Drug Conjugates For Use Against Prostate Cancer, Shang Eun Park, Kiumars Shamloo, Timothy A. Kristedja, Shaban Darwish, Marco Bisoffi, Keykavous Parang, Rakesh Tiwari
Edb-Fn Targeted Peptide–Drug Conjugates For Use Against Prostate Cancer, Shang Eun Park, Kiumars Shamloo, Timothy A. Kristedja, Shaban Darwish, Marco Bisoffi, Keykavous Parang, Rakesh Tiwari
Pharmacy Faculty Articles and Research
Prostate cancer (PCa) is the most common malignancy in men and is the leading cause of cancer-related male mortality. A disulfide cyclic peptide ligand [CTVRTSADC] 1 has been previously found to target extra domain B of fibronectin (EDB-FN) in the extracellular matrix that can dierentiate aggressive PCa from benign prostatic hyperplasia. We synthesized and optimized the stability of ligand 1 by amide cyclization to obtain [KTVRTSADE] 8 using Fmoc/tBu solid-phase chemistry. Optimized targeting ligand 8 was found to be stable in phosphate buered saline (PBS, pH 6.5, 7.0, and 7.5) and under redox conditions, with a half-life longer than 8 …
Mouse Performance On A Novel Touchscreen Continuous Performance Task Is Dependent On Signaling In The Prelimbic Cortex, Tyler D. Dexter, Daniel Palmer, Amy C. Reichelt, Anita Taksokhan, Lisa M. Saksida, Tim J. Bussey
Mouse Performance On A Novel Touchscreen Continuous Performance Task Is Dependent On Signaling In The Prelimbic Cortex, Tyler D. Dexter, Daniel Palmer, Amy C. Reichelt, Anita Taksokhan, Lisa M. Saksida, Tim J. Bussey
Western Research Forum
Attention is the cognitive processing that facilitates the ability to target and attend to relevant environmental stimuli, while filtering out irrelevant or distracting stimuli. Control over selective attention is theorized to be dependent on organized neural communication that stems from the medial prefrontal cortex (mPFC). To evaluate selective and sustained attention, mice were trained on the novel touchscreen rodent continuous performance task (rCPT), a task designed to emulate the human CPT. In the rodent version, images are continuously presented on a touchscreen, where mice have been trained to selectively respond to one image type while suppressing responses to all others. …
Molecular Recognition Of M1-Linked Ubiquitin Chains By Native And Phosphorylated Uban Domains, Lina Herhaus, Henry Van Den Bedem, Sean Teng, Innokentiy Maslennikov, Soichi Wakatsuki, Ivan Dikic, Simin Rahighi
Molecular Recognition Of M1-Linked Ubiquitin Chains By Native And Phosphorylated Uban Domains, Lina Herhaus, Henry Van Den Bedem, Sean Teng, Innokentiy Maslennikov, Soichi Wakatsuki, Ivan Dikic, Simin Rahighi
Pharmacy Faculty Articles and Research
Although the Ub-binding domain in ABIN proteins and NEMO (UBAN) is highly conserved, UBAN-containing proteins exhibit different Ub-binding properties, resulting in their diverse biological roles. Post-translational modifications further control UBAN domain specificity for poly-Ub chains. However, precisely, how the UBAN domain structurally confers such functional diversity remains poorly understood. Here we report crystal structures of ABIN-1 alone and in complex with one or two M1-linked di-Ub chains. ABIN-1 UBAN forms a homo-dimer that provides two symmetrical Ub-binding sites on either side of the coiled-coil structure. Moreover, crystal structures of ABIN1 UBAN in complex with di-Ub chains reveal a concentration-dependency of …
A Rapid Viability And Drug‑Susceptibility Assay Utilizing Mycobacteriophage As An Indicator Of Drug Susceptibilities Of Anti‑Tb Drugs Against Mycobacterium Smegmatis Mc2 155, Gillian Catherine Crowley, Jim O'Mahony, Aidan Coffey, Riona G. Sayers, Paul D. Cotter
A Rapid Viability And Drug‑Susceptibility Assay Utilizing Mycobacteriophage As An Indicator Of Drug Susceptibilities Of Anti‑Tb Drugs Against Mycobacterium Smegmatis Mc2 155, Gillian Catherine Crowley, Jim O'Mahony, Aidan Coffey, Riona G. Sayers, Paul D. Cotter
Department of Biological Sciences Publications
Background: A rapid in-house TM4 mycobacteriophage-based assay, to identify multidrug resistance against various anti-tuberculosis drugs, using the fast-growing Mycobacterium smegmatis mc2 155 in a microtiter plate format was evaluated, based on phage viability assays. Methods: A variety of parameters were optimized before the study including the minimum incubation time for the drugs, phage and M. smegmatis mc2 155 to be in contact. An increase in phage numbers over 2 h was indicative that M. smegmatis mc2 155 is resistant to the drugs under investigation, however when phage numbers remained static, M. smegmatis mc2 155 found to …
Small‐Molecule Activators Of Glucose‐6‐Phosephate Dehydrogenase (G6pd) Bridging The Dimer Interface, Andrew G. Raub, Sunhee Hwang, Naoki Horikoshi, Anna D. Cunningham, Simin Rahighi, Soichi Wakatsuki, Daria Mochly-Rosen
Small‐Molecule Activators Of Glucose‐6‐Phosephate Dehydrogenase (G6pd) Bridging The Dimer Interface, Andrew G. Raub, Sunhee Hwang, Naoki Horikoshi, Anna D. Cunningham, Simin Rahighi, Soichi Wakatsuki, Daria Mochly-Rosen
Pharmacy Faculty Articles and Research
We have recently identified AG1, a small-molecule activator that functions by promoting oligomerization of glucose-6- phosphate dehydrogenase (G6PD) to the catalytically competent forms. Biochemical experiments indicate activation of G6PD by the original hit molecule (AG1) is noncovalent and that one C2-symmetric region of the G6PD homodimer is important for ligand function. Consequently, the disulfide in AG1 is not required for activation of G6PD and a number of analogs were prepared without this reactive moiety. Our Study supports a mechanism of action whereby AG1 bridges the dimer interface at the structural nicotinamide adenine dinucleotide phosphate (NADP+)-binding sites of two interacting G6PD …
Investigating Trail Sensitivity In Platinum-Resistant Ovarian Cancer, Nicholas Pathoulas
Investigating Trail Sensitivity In Platinum-Resistant Ovarian Cancer, Nicholas Pathoulas
All College Thesis Program, 2016-2019
Ovarian cancer is the deadliest gynecologic malignancy in the United States. While these tumors may have a promising initial response to platinum-based chemotherapies, the patient’s prognosis is commonly hindered by the development of platinum resistant cancer. Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) has been implicated as a potential treatment for many cancers based on its tumor selective nature. Combination therapies with TRAIL and platinum drugs have been shown to increase apoptosis and have been used in a variety of clinical trials, which have thus far failed to pass phase II.1 Researchers have not yet elucidated the complex mechanism(s) of TRAIL …
Poly(Ester Amide) Particles For Controlled Delivery Of Celecoxib, Ian J. Villamagna, Trent N. Gordon, Mark B. Hurtig, Frank Beier, Elizabeth R. Gillies
Poly(Ester Amide) Particles For Controlled Delivery Of Celecoxib, Ian J. Villamagna, Trent N. Gordon, Mark B. Hurtig, Frank Beier, Elizabeth R. Gillies
Physiology and Pharmacology Publications
© 2019 Wiley Periodicals, Inc. Many potential pharmacological treatments for osteoarthritis can result in undesirable side effects due to the systemic administration of drugs, making the direct delivery of drugs to joints an attractive alternative. Poly(ester amide)s (PEAs) have been shown to exhibit promising properties for the development of particle-based intra-articular delivery vehicles. However, a limited range of PEA structures has been investigated. In this study, we prepared and characterized the properties of two different PEA particles composed of l-phenylalanine, sebacic acid, and either 1,4-butanediol or 1,8-octanediol (PBSe and POSe, respectively). The anti-inflammatory drug celecoxib (CXB) was encapsulated into the …
Predictive Performance Of Existing Population Pharmacokinetic Models Of Tacrolimus In Pediatric Kidney Transplant Recipients, Alenka Chapron
Predictive Performance Of Existing Population Pharmacokinetic Models Of Tacrolimus In Pediatric Kidney Transplant Recipients, Alenka Chapron
Research Days
No abstract provided.
Human Immunodeficiency Virus Theranostics, Christopher J. Woldstad
Human Immunodeficiency Virus Theranostics, Christopher J. Woldstad
Theses & Dissertations
RATIONALE: Long-acting slow effective release antiretroviral therapy (LASER ART) was developed to improve patient regimen adherence, prevent new infections, and facilitate drug delivery to human immunodeficiency virus cell and tissue reservoirs. However, maintenance of sustained plasma drug levels, for weeks or months, after a single high-level dosing, could improve regimen adherence but, at the same time, affect systemic toxicities. Of these, the most troubling are those that affect the central nervous system (CNS) In an effort to facilitate LASER ART development, “multimodal imaging theranostic nanoprobes” were created. These allow combined bioimaging, drug pharmacokinetics and tissue biodistribution tests in animal …
Δ9-Tetrahydrocannabinol Leads To Endoplasmic Reticulum Stress And Mitochondrial Dysfunction In Human Bewo Trophoblasts., Tina Lojpur, Zachary Easton, Sergio Raez-Villanueva, Steven Laviolette, Alison C Holloway, Daniel B Hardy
Δ9-Tetrahydrocannabinol Leads To Endoplasmic Reticulum Stress And Mitochondrial Dysfunction In Human Bewo Trophoblasts., Tina Lojpur, Zachary Easton, Sergio Raez-Villanueva, Steven Laviolette, Alison C Holloway, Daniel B Hardy
Physiology and Pharmacology Publications
While studies have demonstrated that the main psychoactive component of cannabis, Δ9-tetrahydrocannabinol (Δ9-THC) alone induces placental insufficiency and fetal growth restriction, the underlying mechanisms remain elusive. Given that both (i) endoplasmic reticulum (ER) stress in pregnancy and (ii) gestational exposure to Δ9-THC leads to placental deficiency, we hypothesized that Δ9-THC may directly induce placental ER stress, influencing trophoblast gene expression and mitochondrial function. BeWo human trophoblast cells treated with Δ9-THC (3-30 μM) led to a dose-dependent increase in all ER stress markers and CHOP; these effects could be blocked with CB1R/CB2R antagonists. Moreover, expression of ER stress-sensitive genes ERRγ, VEGFA, …
Effects Of Renal Ischemia-Reperfusion Injury On Cytochrome P450 Activity, Milleah Sawtelle
Effects Of Renal Ischemia-Reperfusion Injury On Cytochrome P450 Activity, Milleah Sawtelle
Senior Honors Projects
Approximately 2 million people worldwide and more than 670,000 Americans are affected by end-stage renal diseases (ESRD). The current standard of care for ESRD is kidney transplantation. However, the surgical procedure of kidney transplantation inherently involves ischemia, which interrupts blood flow and reduces oxygen, during kidney graft preservation. The ischemic period is followed by reperfusion (the restoration of blood flow to the transplanted graft), resulting in varying degrees of ischemia and reperfusion (I/R) injury. I/R injury is a leading cause of both organ dysfunction and graft failure. Furthermore, kidney I/R injury has been shown to cause remote organ damage, especially …