Pharmacology, Toxicology and Environmental Health Commons^™

Exosomes Released From Multiple Myeloma Cells Influence The Angiogenic Function Of Endothelial Cells By Regulating Microrna-29b, Qinmao Ye

Browse all Theses and Dissertations

Multiple myeloma is a hematological malignancy characterized by clonal proliferation of plasma cells generally caused by chromosomal abnormalities. It occurs in the bone marrow, which is the microenvironment of multiple myeloma. Exosomes (EXs) are 30-100 nm membrane-derived micro-vesicles containing various of bioactive molecules, such as microRNAs, to mediate the cell-cell interaction. Numerous studies reported that exosomes play a significant role in tumor microenvironment. Angiogenesis has the important implication in tumor exacerbation to supply nutrients to promote the progression of cancer cells through endothelial cells (ECs). Some studies demonstrated that microRNA-29b (miR-29b) can suppress tumor development and inhibit angiogenesis. Therefore, in …

Regulation Of Microvesicle Particle Release In Keratinocytes, Azeezat Afolake Awoyemi

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Microvesicle particles (MVPs) are produced from cellular membranes and are thought to mediate cell-cell communication, including in response to stressors such as UVB radiation and thermal burn injury. Previous studies have shown that stress-induced MVP release requires the platelet-activating factor (PAF) receptor in human keratinocytes and that pharmacological inhibition of acid sphingomyelinase (ASM) blocked this release. To validate a genetic role for ASM in MVP release, we used CRISPR-Cas9 gene silencing in human keratinocytes and primary fibroblasts derived from ASM-knockout mice. Though MVP release was partially blocked in ASM-deficient mouse fibroblasts, the inability to fully knockdown ASM in HaCaT cells …

Role Of C121a In Mglur2 Homodimeric Expression And Function, Jong M. Shin

Theses and Dissertations

The group II metabotropic glutamate receptors are known for their involvement in various psychiatric disorders. The mGluR2 in particular is linked with etiology of schizophrenia especially in the context of crosstalk with 5-HT2A. Thus, the mGluR2 has attracted attentions for its potential therapeutic applications. Despite numerous physiological evidences on the actions of mGluR2, its mechanism is still unclear to this day. It is partially due to the lack of understanding in characteristics of mGluR2 homodimer which is its functionally active form. Therefore, the characterization of dimeric interaction serves as a foundation to advanced understanding of the role of mGluR2. On …

The Influence Of Physiological And Abiotic Factors On The Sensitivity Of The Sea Lamprey (Petromyzon Marinus) To The Lampricide 3-Trifluoromethyl-4-Nitrophenol (Tfm), Alexandra Muhametsafina

Theses and Dissertations (Comprehensive)

Invasive sea lamprey (Petromyzon marinus) in the Great Lakes are controlled using the pesticide (lampricide) 3-trifluoromethyl-4-nitrophenol (TFM), which is applied to nursery streams containing larval lamprey. The toxicity of TFM to lamprey is affected by various environmental and physiological factors, which can lead to residual lamprey that survive TFM treatment. The goal of this study was to investigate how abiotic (season and temperature) factors interacted with physiological parameters (whole body and tissue energy reserves) to influence TFM sensitivity in sea lamprey. Toxicity tests were conducted at different times of the year (spring, early and late summer, fall) and …

Protein Participants Of Cytosolic Internalization Of The Ouabain-Bound Na⁺/K⁺Atpase Receptor In Human B-3 Lens Epithelial Cells, Joshua Lysle Stricker

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The primary function of Na⁺/K⁺ATPase (NKA) discovered by Jens Christian Skou in 1958, through electrogenic exchange of 3 Na⁺ for 2 K⁺ ions (Robert L Post, 1958), is the homeostatic preservation of their electrochemical gradient across the plasma membrane (PM) of almost all species and their derived cell lines. Cardiotonic steroids (CTS), such as cardenolides or bufadienolides, are well established inhibitors of NKA. Fox glove plant extracts containing CTS, including digitalis, were first described by William Withering (1744-91) for their positive inotropic effect in heart failure patients. Later research identified the mechanism of their action through direct inhibition of NKA …

Design, Synthesis And Biological Evaluation Of Inhibitors Against Both Human And Mouse Microsomal Prostaglandin E2 Synthase-1 Enzymes, Kai Ding

Theses and Dissertations--Chemistry

As the principal pro-inflammatory prostanoid, prostaglandin E₂ (PGE₂) serves as mediator of pain and fever in inflammatory reactions. The biosynthesis of PGE₂ starts from arachidonic acid (AA). Cyclooxygenase (COX)-1 and/or COX-2 converts AA to prostaglandin H₂ (PGH₂), and PGE₂ synthases transform PGH₂ to PGE₂. Current mainstream approach for treating inflammation-related symptoms remains the application of traditional non-steroidal anti-inflammatory drugs (tNSAIDs) and selective COX-2 inhibitors (coxibs). As both categories shut down the biosynthesis of all downstream prostanoids, their application renders several deleterious effects including gastrointestinalulceration and cardiovascular risk. Microsomal prostaglandin …

Study Of The Mechanism Of Action For Ru(Ii) Polypyridyl Complexes As Potential Anticancer Agents, Yang Sun

Theses and Dissertations--Chemistry

Application of chemotherapeutic agents in current cancer treatment has been limited by adverse effects as poor selectivity results in systemic toxicity; most chemotherapy approaches also experience inherited or acquired drug resistance which lead to reduced treatment outcome. Research efforts have focused on the discovery of novel chemotherapies that overcome the limitations mentioned above. Ru(II) polypyridyl complexes with anti-cancer properties have been extensively studied as traditional cytotoxic agents and photodynamic therapy agents due to their photophysical and photochemical characteristics.

Most research has focused on the design of Ru(II) polypyridyl complexes that have affinities to nucleic acids as inspired by the classic …

Validated Thin-Layer Chromatography-Densitometric Method For Simultaneous Determination Of Piperine And Plumbagin In “Benjakul” Thai Polyherbal Formulation And Its Antioxidant Activities, Savita Chewchinda, Pattamapan Lomarat, Pongtip Sithisarn

The Thai Journal of Pharmaceutical Sciences

The purpose of this study was to evaluate antioxidant activity and quantitative analysis of piperine and plumbagin content in “Benjukul (BEN)” Thai polyherbal formulation by TLC densitometric method. BEN was recognized in the list of herbal medicinal...

Antihypercholesterol Activity Of Costus Speciosus Water Extract, Hari Susanti, Subagus Wahyuono, Ratna Asmah Susidarti, Ika Puspita Sari

The Thai Journal of Pharmaceutical Sciences

Hypercholesterol is one of cause of cardiovascular disease. Costus speciosus is known empirically as an antihypercholesterol remedy. The study was conducted to determine the effect of water extract of Costus speciosus (CS) on cholesterol blood serum leve.

Characterization Of Lactic Acid Producing Bacillus Coagulans Strains With Their Antibacterial Activity And L-Lactic Acid Production, Vasana Tolieng

The Thai Journal of Pharmaceutical Sciences

Objectives: Screening of antibacterial activity, identification, and L-lactic acid production of spore forming Bacillus isolates. Materials and methods: Fourteen Bacillus isolates were characterized based on their phenotypic characteristics and 16SrRNA .

Cost-Effectiveness Analysis Of Aripiprazole Compared With Risperidone In Treatment Of Acute Schizophrenia Patients In Thailand, Wiwat Thavornwattanayong

The Thai Journal of Pharmaceutical Sciences

OBJECTIVES: Schizophrenia is the third leading cause of loss of life years in Thailand. Currently, aripiprazole is the latest drug for the treatment of acute schizophrenia in Thailand but its cost-effectiveness has not been studied. The purpose of this s.

The Forensic Characterization Of Bacterial And Fungal Organisms In Traditional Chinese Medicine, Julia Grzymkowski, Christopher J. Ehrhardt, Justin L. Poklis, Michelle R. Peace

UROP Posters

There has been an increase in use of Traditional Chinese Medicine (TCM) in the United States because they are less expensive and believed to be more effective with less adverse effects in comparison to traditional pharmaceutics. Therefore, sales have increased in the US, despite articles and case studies demonstrating the dangers, such as injury and death, related to TCM, stemming from improper labelling, toxic contaminants, and, in some cases, the presence of pathogenic bacteria. The aim of this study was to perform a survival experiment to demonstrate the importance of proper herbal brewing technique and to conduct a molecular and …

The Effects Of The Red Tide Producing Dinoflagellate, Karenia Brevis, And Associated Brevetoxins On Viability And Sublethal Stress Responses In Scleractinian Coral: A Potential Regional Stressor To Coral Reefs, David A. Reynolds

UNF Graduate Theses and Dissertations

Coral cover is in decline on a global scale, with increased mortality events being attributed to a number of global and regional stressors. While the impacts of global stressors (e.g. sea surface temperature rise, ocean acidification) are well documented, there is growing interest in identifying and understanding the impacts of regional stressors. The reason for this change in focus is that regional stressors can often work in combination, sometimes synergistically, with global stressors and that stressors on a regional scale tend to be more easily mitigated by management practices. One regional stressor that impacts a myriad of marine organisms in …

A Cluster-Randomized Trial To Evaluate The Impact Of An Inclusive, Community-Led Total Sanitation Intervention On Sanitation Access For People With Disabilities In Malawi., Adam Biran, Lisa Danquah, Joseph Chunga, Wolf Peter Schmidt, Rochelle Holm, Ambumulire Itimu-Phiri, Wales Singini, Hazel Jones, Hannah Kuper, Sian White

Faculty and Staff Scholarship

Community-led total sanitation (CLTS) is a common method for promoting sanitation in low-income settings. This cluster-randomized trial evaluated an intervention to improve inclusion of people with disability in CLTS through training facilitators. A qualitative study examined intervention acceptability. The trial included 171 people with disabilities (78 control and 93 intervention) living in 15 intervention and 15 control communities. In the intervention arm, respondents were more likely to participate in a community meeting about sanitation (+18.7%, 95% confidence interval [CI]: 3.2, 34.2) and to have been visited to discuss sanitation (+19.7, 95% CI: 0.6, 37.8). More intervention households improved latrine access …

A Novel Assay For Evaluation Of The Total Antioxidant Capacity (Tac) Using A Nontoxic Probe, Sirirat Panich

The Thai Journal of Pharmaceutical Sciences

A novel and simple method for measuring total antioxidant capacity (TAC) was established. Herein, the new assay is based on generating the deep blue Imipramine (IMI) free radical by oxidising IMI with ammonium tetra vanadate (NH4VO3) in acid medium. Once.

In Silico Evaluation Of Molecular Interactions Between Known ?-Glucosidase Inhibitors And Homologous ?-Glucosidase Enzymes From Saccharomyces Cerevisiae, Rattus Norvegicus, And Ganc-Human, Teni Ernawati

The Thai Journal of Pharmaceutical Sciences

The aim of this study was to observe molecular interactions between alpha glucosidase inhibitor waith alpha glucosidase enzyme derived from Saccharomyces cereviseae, Rattus norvegicus and GANC-human. Therefore, they were used against four of the well-kno.

Intended High-Performance Liquid Chromatography Procedure For The Quantification Of Norfloxacin And Its Potential Impurities In Active Pharmaceutical Ingredient And Tablet Dosage Forms, Bikshal Babu Kasimala, Venkateswara Rao Anna, Useni Reddy Mallu, L. Maheshwara Reddy

The Thai Journal of Pharmaceutical Sciences

Norfloxacin [NFXC] is an active pharmaceutical ingredient belongs to 4-quinolone antibacterial agent used for the prophylaxis of gram +ve and gram-ve bacterial infections. A reliable stability-indicating RP-HPLC method was developed for the separation an.

Development And Validation Of Novel Stability-Indicating High-Performance Liquid Chromatography Method For The Determination Of Miglitol In Pharmaceuticals, Kanakapura Basavaiah, Nagaraju Rajendraprasad

The Thai Journal of Pharmaceutical Sciences

A reversed phase high performance liquid chromatographic (RP-HPLC) method for the determination of miglitol (MGL) in pharmaceuticals is presented. The assay was performed on a Phenomenex Luna C18 (150 × 4.6 mm; 5µm particle size) column using phosphate...

Quantitative Structure–Activity Relationship Modeling Of S-Triazines And 2-Arylpyrimidines As Selective Pde4b Inhibitors, Anand Gaurav, Gabriel Akyirem Akowuah, Choo Shiuan Por

The Thai Journal of Pharmaceutical Sciences

A QSAR analysis was conducted on a series of 2-arylpyrimidine and s-triazine derivatives as selective PDE4B inhibitors. Primary objective of the study is to develop predictive QSAR models for s-triazines and 2-arylpyrimidines as selective PDE4B and to id.

Ethical Cases On Pharmacy Profession Practice In Thailand During A.D. 1995 To 2015, Wanna Sriviriyanupap, Usawadee Sutapuk

The Thai Journal of Pharmaceutical Sciences

Background: Code of ethics for the pharmacy profession was established to enforce all pharmacists to abide by a rule for a good pharmacy professional practice. Objective: to study the ethical problems, related to the pharmacy profession practice, and to .