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Articles 1 - 30 of 644
Full-Text Articles in Other Pharmacy and Pharmaceutical Sciences
From Advisory To Action: The Case For Preserving Paccarb In The Fight Against Antimicrobial Resistance, Leila S. Hojat, Muhammad Dhanani, Amy Y. Kang, Salome O. Chitavi, Robert A. Weinstein, Edward Stenehjem
From Advisory To Action: The Case For Preserving Paccarb In The Fight Against Antimicrobial Resistance, Leila S. Hojat, Muhammad Dhanani, Amy Y. Kang, Salome O. Chitavi, Robert A. Weinstein, Edward Stenehjem
Pharmacy Faculty Articles and Research
The Presidential Advisory Council on Combating Antibiotic-Resistant Bacteria (PACCARB) was established to advise the government on strategies to mitigate antimicrobial resistance (AMR) and its increasing threat to public health and national security. Its members included experts from diverse disciplines such as healthcare, veterinary medicine, industry, public health, and agriculture who were positioned to interface with key stakeholders and the public in an aspirational multidisciplinary approach to combating AMR. The council was successful in elevating AMR as a national priority and played a crucial role in watershed events for antimicrobial stewardship (AS) such as the development of the second National Action …
Nicotine Pouches: Harm Reduction Or Initiation Pathway? A Pharmacy-Focused Review, Emmanuel Fashesin Souza, Keykavous Parang
Nicotine Pouches: Harm Reduction Or Initiation Pathway? A Pharmacy-Focused Review, Emmanuel Fashesin Souza, Keykavous Parang
Pharmacy Faculty Articles and Research
Background
Nicotine pouches (NPs) are a rapidly growing category of tobacco-free oral nicotine products increasingly available in the community, including pharmacies. Whether NPs primarily function as harm-reduction tools for existing tobacco users or as a novel initiation pathway into nicotine and tobacco use, particularly among youth, remains a critical and unresolved clinical and public health question.
Objectives
To synthesize current evidence on the pharmacology, harm-reduction potential, and initiation risk of NPs; to compare NPs with U.S. Food and Drug Administration-approved nicotine replacement therapy and combustible cigarettes; and to identify implications and counseling priorities for pharmacy practice.
Methods
A narrative evidence …
Ecorxchoice.Com— An Sidp-Funded Calculator Integrating Environmental Metrics With Antimicrobial Stewardship, Pamela S. Lee, Hugh Gordon, Theresa Ferguson, Tien Dinh, Misty Vu, Marina Nguyen, Chaynor Hsiao, Gary Fong
Ecorxchoice.Com— An Sidp-Funded Calculator Integrating Environmental Metrics With Antimicrobial Stewardship, Pamela S. Lee, Hugh Gordon, Theresa Ferguson, Tien Dinh, Misty Vu, Marina Nguyen, Chaynor Hsiao, Gary Fong
Pharmacy Faculty Articles and Research
Healthcare sustainability is a multidisciplinary field that seeks to mitigate healthcare’s environmental consequences. Antimicrobial stewardship and healthcare sustainability both aim to reduce wasteful resource use while maximizing patient safety. However, a strong partnership between antimicrobial stewardship and healthcare sustainability has yet to develop. To facilitate environmentally sustainable decision-making in antimicrobial prescribing, we developed a web-based calculator (EcoRxChoice (www.ecorxchoice.com)) where users can enter different antimicrobial regimens and compare how much plastic waste each regimen creates. This work was supported in part by the Society of Infectious Diseases Pharmacists (SIDP), reflecting SIDP’s commitment to strengthening sustainability as a practical extension of antimicrobial …
Antimicrobial Resistance In Pediatric Infections: Current Status, Challenges, And Future Directions, Clare Dinh, Keykavous Parang
Antimicrobial Resistance In Pediatric Infections: Current Status, Challenges, And Future Directions, Clare Dinh, Keykavous Parang
Pharmacy Faculty Articles and Research
Background/Objectives: Antimicrobial resistance in pediatric infections presents a worsening global public health challenge, with antimicrobial resistance (AMR) accounting for more than one million deaths annually and disproportionately affecting children younger than 5 years of age. Neonates and critically ill children face heightened risk owing to immature immunity, frequent healthcare exposures, and limited therapeutic options. This review synthesizes evidence on the epidemiology, mechanisms of resistance, clinical outcomes, and management of AMR across the full pediatric age range. Methods: PubMed/MEDLINE and Google Scholar were searched for literature from 2014 to 2026 using terms covering antibiotic resistance, pediatric populations, and key …
Integrating Structural Analysis In The Pre-Appe Curriculum: Experiences From Three Institutions, Jennifer Ko, Sharon E. Connor, Emily K. Frederick, Katherine Foley, Emiline Snook, Ava Romah, Katie F. Leslie
Integrating Structural Analysis In The Pre-Appe Curriculum: Experiences From Three Institutions, Jennifer Ko, Sharon E. Connor, Emily K. Frederick, Katherine Foley, Emiline Snook, Ava Romah, Katie F. Leslie
Pharmacy Faculty Articles and Research
Background
Pharmacy graduates must be prepared to address health disparities and the structural and social drivers of health (SSDH) that shape patient outcomes. These skills require intentional introduction, practice, and scaffolding. One approach to operationalizing this within case-based instruction is the Structural Analysis (SA) framework.Educational activity
Three Doctor of Pharmacy programs piloted the SA framework as a structured method for integrating SSDH into patient case discussions. Each institution implemented the SA framework within distinct curricular contexts, offering insight into feasibility, learner progression, and instructional challenges.Evaluation findings
The SA framework was successfully integrated into required pre-APPE coursework. Although implementation …Lovastatin Potentiates The Function Of Α7-Nicotinic Acetylcholine Receptors, Dmytro Isaev, Keun-Hang Susan Yang, Murat Oz
Lovastatin Potentiates The Function Of Α7-Nicotinic Acetylcholine Receptors, Dmytro Isaev, Keun-Hang Susan Yang, Murat Oz
Pharmacy Faculty Articles and Research
Background/Objectives: Statins are currently one of the most commonly used cholesterol-lowering drugs. In recent years, in addition to their well-known effects on the cardiovascular system, statins have been shown to exert beneficial effects in the progression of various neuropsychiatric and neurodegenerative diseases. Methods: In this study, the effects of lovastatin on the function of α7-nicotinic acetylcholine (nACh) receptors expressed in rat hippocampus and Xenopus oocytes were investigated. Results: In whole-cell patch clamp studies in hippocampal neurons, 21-day chronic (20 mg/kg), but not acute (20 min), lovastatin treatment caused significant potentiation of choline (a selective agonist for α7 nACh receptors)-induced currents …
Expert Recommendations To Strengthen Chikungunya Outbreak Surveillance And Reporting For Traveler Health Protection, Daniel C. Payne, Karoun H. Bagamian, Jeffery Goad, Nathan D. Grubaugh, Michael A. Johansson, Moritz U. G. Kraemer, Eyal Leshem, Francesca F. Norman, Alfonso J. Rodríguez-Morales, Henrik Salje, Stephen Thomas, Scott C. Weaver, Lindsey A. Laytner, Rebecca Sturgis, Suzanne K. Scheele, Davidson H. Hamer
Expert Recommendations To Strengthen Chikungunya Outbreak Surveillance And Reporting For Traveler Health Protection, Daniel C. Payne, Karoun H. Bagamian, Jeffery Goad, Nathan D. Grubaugh, Michael A. Johansson, Moritz U. G. Kraemer, Eyal Leshem, Francesca F. Norman, Alfonso J. Rodríguez-Morales, Henrik Salje, Stephen Thomas, Scott C. Weaver, Lindsey A. Laytner, Rebecca Sturgis, Suzanne K. Scheele, Davidson H. Hamer
Pharmacy Faculty Articles and Research
Chikungunya, a debilitating mosquito-borne disease caused by chikungunya virus, has surged dramatically in the past two decades. Chikungunya outbreaks can intensify rapidly, with infections posing a significant endemic health burden in tropical/subtropical areas and for travelers. Health professionals require timely and accurate outbreak information to adequately protect travelers and assess chikungunya risk. However, detection is often insufficient in the areas most susceptible to outbreaks, leading to diagnostic and reporting delays. Consequently, travelers are often unaware of increased chikungunya infection risk at their destination. We assessed chikungunya surveillance and reporting resources, and we developed expert recommendations for traveler health protection. Because …
Effects Of Normothermic Hepatic Ischemia–Reperfusion Injury On The Hepatic Disposition Of Arachidonic Acid And Its Cytochrome P450-Generated Metabolites In Rats, Vindhya Edpuganti, Reza Mehvar
Effects Of Normothermic Hepatic Ischemia–Reperfusion Injury On The Hepatic Disposition Of Arachidonic Acid And Its Cytochrome P450-Generated Metabolites In Rats, Vindhya Edpuganti, Reza Mehvar
Pharmacy Faculty Articles and Research
Purpose
Cytochrome P450 (P450) metabolites of arachidonic acid (AA) are potential therapeutic targets in ischemia–reperfusion (IR) injury, yet their disposition and actions in hepatic IR are unknown. Cellular AA and its P450 metabolites are primarily bound to lipid membranes, resulting in negligible free concentrations. This study investigates how hepatic IR injury impacts the disposition of free AA and its major P450 metabolites in rats.
Methods
Rats underwent 60 min of partial (70%) ischemia or sham surgery, followed by 5 min, 3 h, or 24 h of reperfusion. The effects of IR injury on free concentrations of AA and its major …
Level Of Comfort And Barriers To Pediatric Vaccination Among Pharmacy-Based Immunizers In California, Laressa Bethishou, Karl Hess, Richard Beuttler, Jeffery Goad
Level Of Comfort And Barriers To Pediatric Vaccination Among Pharmacy-Based Immunizers In California, Laressa Bethishou, Karl Hess, Richard Beuttler, Jeffery Goad
Pharmacy Faculty Articles and Research
Background
Pharmacists are increasingly recognized as accessible immunizers, yet pediatric vaccination rates in community pharmacies remain lower than those for adults, likely due to unique barriers. This study aimed to assess the comfort level of pharmacy-based immunizers in California with administering vaccines to pediatric patients and to identify barriers limiting their participation in pediatric immunization.
Methods
An IRB-approved, cross-sectional survey was distributed electronically to pharmacists, student pharmacists, and pharmacy technicians administering vaccines in California community pharmacies between November 2022 and February 2023. The survey measured comfort with vaccinating pediatric age groups, perceived barriers, and collected demographic data. Data analysis included …
An Evaluation Of Artificial Intelligence Chatbots As Alternatives To Specialized Software In Teaching Bayesian Pharmacokinetic Analysis, Reza Mehvar
Pharmacy Faculty Articles and Research
Objective
To investigate the accuracy and reliability of artificial intelligence chatbots in estimating pharmacokinetic parameters from limited patient samples and population data for potential application in teaching Bayesian concepts.Methods
Two plasma concentration–time data sets after a single intravenous dose, along with population values for volume of distribution (V) and elimination rate constant (k), were entered into free versions of ChatGPT and Gemini. Three prompts were engineered to assess and improve the accuracy and consistency of patient-only (based on plasma concentrations) and Bayesian (based on plasma concentrations and population data) estimates of V and k. …Implementation Of Wellness Activities In An Experiential Rotation To Promote Pharmacy Student Well-Being, Neeloufar Fakourfar, Brenda Kilzi, Reza Taheri, Richard Beuttler, Hindu Rao
Implementation Of Wellness Activities In An Experiential Rotation To Promote Pharmacy Student Well-Being, Neeloufar Fakourfar, Brenda Kilzi, Reza Taheri, Richard Beuttler, Hindu Rao
Pharmacy Faculty Articles and Research
Background
During Advanced Pharmacy Practice Experiences (APPE), pharmacy students may face challenges as they balance clinical responsibilities, prepare for licensure exams, and transition into professionals. Despite high burnout rates for healthcare professionals, there are limited wellness initiatives for students during experiential education. To address this gap, a six-week wellness discussion series was implemented during an ambulatory care APPE rotation.Educational activity
Between August 2023 and May 2025, a total of 28 APPE students participated in 15–30-min preceptor-led, small-group discussions each week. Topics included happiness, meditation, gratitude, resilience, going with the flow of life, and how to build better habits. These …Addition Of Prg4 To Optimize The Anti‑Adhesive Properties Of Tissue Barrier Sepraflm®, Ava J. Marks, Khaled A. Elsaid, Ling X. Zhang, Timmy Lin, Janette Baird, Tannin A. Schmidt, Gregory D. Jay
Addition Of Prg4 To Optimize The Anti‑Adhesive Properties Of Tissue Barrier Sepraflm®, Ava J. Marks, Khaled A. Elsaid, Ling X. Zhang, Timmy Lin, Janette Baird, Tannin A. Schmidt, Gregory D. Jay
Pharmacy Faculty Articles and Research
Purpose
Postsurgical adhesion remains a significant clinical challenge. Seprafilm® is widely used as a barrier to reduce adhesion formation, however its efficacy may be inconsistent. Recombinant human proteoglycan-4 (rhPRG4), a surface-active, anti-inflammatory glycoprotein found in synovial fluid inhibits cell and protein adhesion. This study investigated whether coating Seprafilm with rhPRG4 could enhance its anti-adhesive potential.
Methods
Macrophages (J774), human fibroblast-like synoviocytes (HFLS), and melanoma (A375) cells were cultured on tissue culture wells treated with rhPRG4 or bovine submaxillary mucin (BSM) to determine optimal seeding density. Seprafilm sheets were coated with rhPRG4 or BSM (0.78–200 µg/mL). Cell adhesion was quantified …
3rd Place Contest Entry: "Examining Physicians’ Behaviors Regarding Buprenorphine Prescribing For Opioid Use Disorder", Khashayar Eshtiaghi
3rd Place Contest Entry: "Examining Physicians’ Behaviors Regarding Buprenorphine Prescribing For Opioid Use Disorder", Khashayar Eshtiaghi
Eric M. Scandrett Graduate Library Research Prize
This is Khashayar Eshtiaghi's submission for the 2026 Eric M. Scandrett Graduate Research Prize, which won third place. It contains their essay on using library resources, a summary of their research project on physicians' behaviors regarding buprenorphine prescribing for opioid use disorde, and their bibliography.
Khashayar is a student in the Ph.D. in Pharmaceutical Economics and Policy program at Chapman University. Their faculty mentor is Dr. Marc Fleming.
Cbx6-Ca9 Axis: An Epigenetic-Metabolic Vulnerability In Glioblastoma, Keykavous Parang
Cbx6-Ca9 Axis: An Epigenetic-Metabolic Vulnerability In Glioblastoma, Keykavous Parang
Pharmacy Faculty Articles and Research
Glioblastoma (GBM) remains one of the most therapeutically recalcitrant malignancies, with median survival rarely exceeding 15 months despite maximal therapy.1 The hypoxic tumor microenvironment drives treatment resistance through epigenetic and metabolic adaptations.2
In this issue of Molecular Therapy Oncology, the study by Wang et al.3 demonstrates a novel regulatory axis between CBX6 (chromobox 6), a polycomb group protein, and CA9 (carbonic anhydrase 9), revealing how hypoxia-driven epigenetic reprogramming promotes tumor progression and identifying a mechanistically linked pathway for therapeutic intervention in GBM.
The study by Wang et al.3 advances our understanding of how the tumor microenvironment …
Protocol For Spatial Profiling Of Immune Cells In The Mouse Cornea And Conjunctiva Using Nanostring Geomx Dsp And Ncounterpro Platforms, Lois Kim, Karthikeyan Ramasamy, Ajay Sharma
Protocol For Spatial Profiling Of Immune Cells In The Mouse Cornea And Conjunctiva Using Nanostring Geomx Dsp And Ncounterpro Platforms, Lois Kim, Karthikeyan Ramasamy, Ajay Sharma
Pharmacy Faculty Articles and Research
Quantification of immune cells and their activation status in a spatially specific manner in a healthy or diseased tissue is a valuable tool in immunology. Here, we present a protocol for the spatial profiling of immune cells in the mouse cornea and conjunctiva. We describe steps for immunostaining with photocleavable oligonucleotide-conjugated antibodies, selecting regions of interest (ROIs), and collecting UV-cleaved oligonucleotides using GeoMx DSP. We then detail procedures for hybridizing collected oligonucleotides, cartridge blotting using nCounter Pro Prep, data acquisition, and data analysis.
Receptor-Mediated Drug Delivery: Redefining Targeted Drug Conjugates In Oncology, Keon Niles Jafari, Charlene Chai, Shelby Kim, Kamaljit Kaur
Receptor-Mediated Drug Delivery: Redefining Targeted Drug Conjugates In Oncology, Keon Niles Jafari, Charlene Chai, Shelby Kim, Kamaljit Kaur
Pharmacy Faculty Articles and Research
Targeted drug delivery (TDD), specifically through targeting ligand–drug conjugates, has reshaped oncology by enabling selective delivery of cytotoxic payloads to cancer cells while minimizing uptake by normal tissues. A key approach relies on exploiting overexpressed cell surface receptors (CSRs) to enable selective uptake of drug conjugates via receptor-mediated endocytosis. This review delineates four clinically validated CSRs (HER2, Trop-2, Nectin-4, and SSTR2) with several FDA-approved drug conjugates. Furthermore, emerging CSRs (EGFR, DLL3, and keratin 1) that may support next-generation TDD platforms for cancer treatment are also highlighted. We discuss how CSR type, density on cancer cells, and its mechanism of endocytosis, …
Periodontal Biomarkers In Cardiovascular Disease: Mechanisms, Diagnostics, And Clinical Implications, Max Foroughi, Keykavous Parang
Periodontal Biomarkers In Cardiovascular Disease: Mechanisms, Diagnostics, And Clinical Implications, Max Foroughi, Keykavous Parang
Pharmacy Faculty Articles and Research
Purpose
Periodontal disease is a chronic inflammatory condition increasingly associated with cardiovascular disease (CVD) beyond shared risk factors. This review evaluates evidence linking periodontal inflammation to cardiovascular outcomes and identifies periodontal biomarkers with potential relevance for cardiovascular risk assessment.
Methods
A narrative review was conducted using PubMed, Scopus, and Web of Science databases, including studies published between 1990 and 2025. Epidemiological, clinical, and mechanistic studies examining associations between periodontal disease, inflammatory and microbial biomarkers, and cardiovascular outcomes were included. Biomarkers were categorized as inflammatory cytokines, acute-phase proteins, oxidative stress markers, lipid mediators, and microbial indicators. Evidence regarding periodontal therapy and …
Gadolinium Nanoparticles: Emerging Platforms Beyond Imaging For Drug Delivery And Theranostics, Amir Nasrolahi Shirazi, Rajesh Vadlapatla, Ajoy Koomer, Heyam Zayed, Paris Marabut, Keykavous Parang
Gadolinium Nanoparticles: Emerging Platforms Beyond Imaging For Drug Delivery And Theranostics, Amir Nasrolahi Shirazi, Rajesh Vadlapatla, Ajoy Koomer, Heyam Zayed, Paris Marabut, Keykavous Parang
Pharmacy Faculty Articles and Research
Gadolinium nanoparticles (GdNPs) have gained increasing attention as multifunctional metal-based nanoplatforms that extend far beyond their traditional use as magnetic resonance imaging (MRI) contrast agents. Their specific magnetic properties, tunable physicochemical features, and tunable biocompatibilities with biocompatible coatings give them great potential as drug delivery and theranostic applications. They offer greater stability, lower systemic toxicity, and more surface modification options compared to molecular gadolinium chelates. The functionalized GdNPs not only show excellent properties as drug carriers for their specific indications but also serve as agents in various imaging modalities with superior therapeutic efficacy by means of radio sensitization and magnetically …
Assessment Of Antimicrobial Transition Errors From Hospitals To Skilled Nursing Facilities, Amy Y. Kang, Guarina A. Garcia Delgado, Ashley Nguyen, Maddie Yeh, Tracy Ly, Richard C. Beuttler, Abisay Ortega, Donna Phan Tran, Evelyn Flores, Charis Tjeong, Andrew Bishop, Praneet Kalkat, Loren G. Miller
Assessment Of Antimicrobial Transition Errors From Hospitals To Skilled Nursing Facilities, Amy Y. Kang, Guarina A. Garcia Delgado, Ashley Nguyen, Maddie Yeh, Tracy Ly, Richard C. Beuttler, Abisay Ortega, Donna Phan Tran, Evelyn Flores, Charis Tjeong, Andrew Bishop, Praneet Kalkat, Loren G. Miller
Pharmacy Faculty Articles and Research
Background More than 1 million Americans reside in skilled nursing facilities (SNFs). Antimicrobial transition errors among patients transferred from hospital to SNFs pose safety risks and may lead to poor outcomes, but data on such errors are limited. Methods We conducted a retrospective cohort study of infectious diseases clinics from 1 June 2020 through 30 November 2023 at the Los Angeles County Department of Health Services, a large safety-net health system. We performed logistic regression analyses to identify factors associated with antimicrobial transition errors and poor infection outcomes. Results We screened records of 6865 clinic patients, among whom 112 were …
Improving Hba1c And Diabetes Preventative Screening Measures In Spanish-Speaking Patients With Clinical Pharmacist Care: A Quality Improvement Initiative, Jennifer Ko, Tila P. Nguyen, Bonnie K. Chen, Richard Beuttler
Improving Hba1c And Diabetes Preventative Screening Measures In Spanish-Speaking Patients With Clinical Pharmacist Care: A Quality Improvement Initiative, Jennifer Ko, Tila P. Nguyen, Bonnie K. Chen, Richard Beuttler
Pharmacy Faculty Articles and Research
Purpose:
To evaluate the impact of clinical pharmacist interventions on HbA1c and adherence to diabetes preventative screenings among Spanish-speaking adults with uncontrolled type 2 diabetes.Methods:
This retrospective evaluation of a quality improvement initiative included Spanish-speaking adults with baseline HbA1c of 8% or greater who received at least 1 clinical pharmacist visit at a Federally Qualified Health Center. Outcomes included changes in glycemic control and timely preventive care screenings (diabetic eye exam, diabetic foot exam, urine albumin-to-creatinine ratio [UACR] test, and statin use), analyzed using logistical regression and McNemar’s test.Results:
Among 70 included patients, the mean age was 55.6 …Evidentiary Standards For Newly Approved Antibiotics For Uncomplicated Urinary Tract Infections, Rosa Rodriguez-Monguio, Enrique Seoane-Vazquez, John H. Powers Iii
Evidentiary Standards For Newly Approved Antibiotics For Uncomplicated Urinary Tract Infections, Rosa Rodriguez-Monguio, Enrique Seoane-Vazquez, John H. Powers Iii
Pharmacy Faculty Articles and Research
Importance: Uncomplicated urinary tract infections (uUTIs) are among the most common bacterial infections and are typically treated with existing oral antibiotics. In 2024–2025, the FDA approved two new oral agents, sulopenem etzadroxil/probenecid and gepotidacin, via expedited review pathways, for the treatment of uUTIs. Objective: To assess the clinical significance and regulatory evidence supporting FDA approval of sulopenem/probenecid and gepotidacin for uUTI, and to analyze the adherence of pivotal phase III trials to regulatory standards for approval and FDA guidelines. Design, Setting, and Participants: Comparative descriptive analysis of publicly available data from phase 3 randomized, double-blind, active-controlled clinical …
Algorithmic Opacity In Opioid Risk Scoring And The Need For Transparent Ai Regulation, Sherry Yun Wang, Ryan Stofer, Zhouzhou Chu, Xiao Huang, Ang Li
Algorithmic Opacity In Opioid Risk Scoring And The Need For Transparent Ai Regulation, Sherry Yun Wang, Ryan Stofer, Zhouzhou Chu, Xiao Huang, Ang Li
Pharmacy Faculty Articles and Research
NarxCare®, a proprietary opioid risk scoring system embedded in Prescription Drug Monitoring Programs (PDMPs), has generated significant patient complaints. We adhered to the technical specifications and applied them to PDMP and IQVIA PharMetrics® Plus Closed Health Plan claims database. Despite adding socioeconomic covariates, precision (0.01–0.32) was far below the reported benchmark of 0.75, and F1 scores (0.02–0.39) were also substantially lower than the benchmark value of 0.65, across all our reconstructed models.
Disruption Of Proteoglycan 4 (Prg4)-Cd44 Signaling Modulates Chronic Synovitis In Conditionally Inactivated Mice, Khaled A. Elsaid, Ling Zhang, Thomas Zhao, Ava Marks, Derek Jenkins, Gregory D. Jay
Disruption Of Proteoglycan 4 (Prg4)-Cd44 Signaling Modulates Chronic Synovitis In Conditionally Inactivated Mice, Khaled A. Elsaid, Ling Zhang, Thomas Zhao, Ava Marks, Derek Jenkins, Gregory D. Jay
Pharmacy Faculty Articles and Research
Background
Proteoglycan-4 (PRG4) is a mucinous glycoprotein secreted by synovial fibroblasts and superficial zone chondrocytes. PRG4 inhibits synovial macrophage (SM) activation via xanthine oxidase (XO) and hypoxia inducible factor alpha (HIF-1α) suppression. We aimed to evaluate the contribution of PRG4-CD44 interaction to synovial homeostasis and investigate PRG4’s signaling dysfunction in synovial tissues from patients with osteoarthritis (OA). We hypothesized that CD44 mediates synovitis due to PRG4 loss and that PRG4 signaling dysfunction is associated with high-grade synovitis in OA.
Methods
Prg4FrtloxP/FrtloxP are transgenic mice wherein tamoxifen (TAM) inactivates the Frt allele and creates a knockout state (Prg4FrtKO/FrtKO …
P-78. Susceptibility Of Omadacycline In Bone And Joint Infections: Pathogen Susceptibility And Regimen Decisions From An Ongoing Randomized Controlled Trial, Amy Y. Kang, Evelyn A. Flores, Donna Phan Tran, Buchen (Olivia) Han, Isabel Payan, Guarina Garcia Delgado, Loren G. Miller
P-78. Susceptibility Of Omadacycline In Bone And Joint Infections: Pathogen Susceptibility And Regimen Decisions From An Ongoing Randomized Controlled Trial, Amy Y. Kang, Evelyn A. Flores, Donna Phan Tran, Buchen (Olivia) Han, Isabel Payan, Guarina Garcia Delgado, Loren G. Miller
Pharmacy Faculty Articles and Research
Background Treatment of Bone and joint infections (BJIs) with oral antibiotics may have benefits compared to IV therapy. Yet oral treatment options may be limited by lack of options due to antibiotic-resistant pathogens and tolerability concerns. Omadacycline has in vitro activity against common BJI pathogens, including MRSA and most Enterobacterales. However, real-world susceptibility data and implications for oral therapy are limited. Methods
We conducted a descriptive analysis of data from adult patients enrolled to date in an open-label, randomized controlled trial of comparing omadacycline-containing antibiotic regimen vs. standard of care (SOC) antibiotics for BJIs. Omadaycline susceptibility was assessed on available …
686. Antibiotic Prescribing For Urinary Tract Infections In Outpatient Settings: A Multicenter Assessment Based On The Five Ds Of Stewardship, Amy Y. Kang, Oliver Tan, Sunwoo Oh, Nikki Derleth, Megan Shieh, Helen Vu, Inna Tagarino, Audrey Harrington, Deborah Kupferwasser, Loren G. Miller
686. Antibiotic Prescribing For Urinary Tract Infections In Outpatient Settings: A Multicenter Assessment Based On The Five Ds Of Stewardship, Amy Y. Kang, Oliver Tan, Sunwoo Oh, Nikki Derleth, Megan Shieh, Helen Vu, Inna Tagarino, Audrey Harrington, Deborah Kupferwasser, Loren G. Miller
Pharmacy Faculty Articles and Research
Background Urinary tract infections (UTIs) are a leading cause of outpatient antibiotic use. Prior studies have documented inappropriate prescribing during outpatient UTI visits, but few have assessed intervention opportunities using a structured stewardship framework. We evaluated UTI prescribing practices in a healthcare system using the Five Ds framework: Diagnosis, Drug, Dose, Duration, and De-escalation. Methods
We conducted a retrospective study across 4 medical centers and > 20 outpatient clinics within the Los Angeles County Department of Health Services, the second largest U.S. safety net healthcare system. To ensure adequate representation across sites while maintaining feasibility for manual chart review, we reviewed …
Evaluation Of Peptides And Peptide–Doxorubicin Conjugates Designed And Synthesized For Targeting Triple-Negative Breast Cancer Via Cell-Surface Receptors, Shih-Jing (Jane) Yao
Evaluation Of Peptides And Peptide–Doxorubicin Conjugates Designed And Synthesized For Targeting Triple-Negative Breast Cancer Via Cell-Surface Receptors, Shih-Jing (Jane) Yao
Pharmaceutical Sciences (PhD) Dissertations
A significant problem faced in oncology is the lack of chemotherapeutic agents that are tumor site-specific, resulting in reduced therapeutic efficacy and unintended infliction of harm to surrounding healthy tissues and cells that often lead to serious side effects. Current strategies being explored to circumvent this issue aim to refine delivery of chemotherapeutic agents specifically to tumor sites, which may be achieved via conjugation of these agents to biomarker-specific ligands. This forms the foundation of ligand-targeted drug delivery. Among different breast cancers, treatment of the triple-negative breast cancer (TNBC) subtype has been particularly challenging, largely due to the absence of …
Proteome-Based Identification And Validation Of Nxpe3 In Childhood Acute Lymphoblastic Leukaemia, Najia Tabassum, Yamna Khurshid, Basir Syed, Aftab Ahmad, Sadia Muhammad, Rehan Imad, Talat Mirza
Proteome-Based Identification And Validation Of Nxpe3 In Childhood Acute Lymphoblastic Leukaemia, Najia Tabassum, Yamna Khurshid, Basir Syed, Aftab Ahmad, Sadia Muhammad, Rehan Imad, Talat Mirza
Pharmacy Faculty Articles and Research
Background: Childhood acute lymphoblastic leukaemia (cALL) tends to metastasize to central nervous system. Treatment with antileukemic agents against CNS leukaemia is an essential component for cure in ALL. Hence, it is essential to identify biomarkers for CNS infiltration. Proteomics, supported by mass spectrometry, is the platform for exploring biomarkers in various biological samples, contributing to translational research. Objectives: This study aimed to identify the plasma proteome profile of children across different risk groups of cALL. Neurexophilin and PC-esterase family, member 3 (NXPE3), was validated. The protein-protein interactions (PPI) of NXPE3 were evaluated with bioinformatics analyses. Methods: Plasma …
Hepatocyte-Specific Lrp1 Silencing Exacerbates Brain Amyloidosis Without Compensatory Ldl Receptor Family Involvement, Brian Carson, Josephine Chu, Devaraj V. Chandrashekar, Jerome Garcia, Rachita K. Sumbria, Derick Han
Hepatocyte-Specific Lrp1 Silencing Exacerbates Brain Amyloidosis Without Compensatory Ldl Receptor Family Involvement, Brian Carson, Josephine Chu, Devaraj V. Chandrashekar, Jerome Garcia, Rachita K. Sumbria, Derick Han
Pharmacy Faculty Articles and Research
Background
LDL receptor related protein 1 (LRP1) is a major hepatic receptor involved in lipoprotein metabolism, protease degradation, transmembrane receptor modulation, and clearance of excess protein, such as Aβ. Decreased expression of LRP1 due to liver injury can impair receptor-mediated clearance, increasing Aβ availability in the periphery. We investigated the effects of hepato-specific silencing of LRP1 on Aβ deposition in the brain. Additionally, other LDL family members (LRP5, LRP6, and LDLR) that may participate in Aβ clearance were monitored in the liver to ensure non-compensatory effects of LRP1 silencing.
Method
4-month-old male double transgenic (APP/PS1) AD mice were injected with …
The Mitochondria Is The Source Of Hepatic Amyloid Precursor Protein And Peripheral Amyloid Beta: Implications Of Alcohol-Induced Liver Steatosis In Alzheimer's Disease, Josephine Chu, Ross A. Steinberg, Brian Carson, Devaraj Venkatapura Chandrashekar, Rachita K. Sumbria, Derick Han
The Mitochondria Is The Source Of Hepatic Amyloid Precursor Protein And Peripheral Amyloid Beta: Implications Of Alcohol-Induced Liver Steatosis In Alzheimer's Disease, Josephine Chu, Ross A. Steinberg, Brian Carson, Devaraj Venkatapura Chandrashekar, Rachita K. Sumbria, Derick Han
Pharmacy Faculty Articles and Research
Background
Alcohol-induced liver injury occurs in the pericentral region of the liver and can induce mitochondrial remodeling and exacerbate Alzheimer's Disease (AD) progression. Subpopulations of mitochondria: general mitochondria (GM), peridroplet mitochondria (PDM) and endoplasmic reticulum(ER)-bound mitochondria (ERM) maintain cellular homeostasis via energy synthesis, lipid homeostasis, and regulation of intracellular calcium. Hepatic amyloid precursor protein (APP) is a source of peripheral amyloid beta (aB) and affects AD pathology in the brain. Understanding the localization and expression of hepatic APP in mitochondrial subpopulations are critical to understanding aB metabolism and may play a role in identifying a potential mechanism for metabolic dysfunction. …
Selenium Nanoparticles As Versatile Delivery Tools, Amir Nasrolahi Shirazi, Rajesh Vadlapatla, Ajoy Koomer, Kyle Yep, Keykavous Parang
Selenium Nanoparticles As Versatile Delivery Tools, Amir Nasrolahi Shirazi, Rajesh Vadlapatla, Ajoy Koomer, Kyle Yep, Keykavous Parang
Pharmacy Faculty Articles and Research
Selenium nanoparticles (SeNPs) have emerged as promising metal-based nanoparticles for drug delivery due to their unique physicochemical properties, intrinsic bioactivity, and biocompatibility. SeNPs offer a lower toxicity, higher bioavailability, and flexibility to be customized for surface chemistry compared to traditional selenium compounds. Advances in synthetic strategies, including chemical reduction, green biosynthesis, and surface functionalization with polymers, peptides, or ligands, have improved their stability, targeting capability, and circulation time. SeNP-based systems have demonstrated unique anticancer, antimicrobial, and anti-inflammatory activities, as they can function as drug carriers and active therapeutic agents. The surface of SeNPs has been functionalized with ligands such as …