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Articles 1 - 6 of 6
Full-Text Articles in Pharmacy and Pharmaceutical Sciences
Development And Evaluation Of Brain Tumor Targeted Liposome Delivery System For Paclitaxel, Murali Krishna Divi
Development And Evaluation Of Brain Tumor Targeted Liposome Delivery System For Paclitaxel, Murali Krishna Divi
Theses and Dissertations (ETD)
Primary brain tumors are a relatively common cause of cancer-related deaths. High-grade gliomas are the most common type of primary brain cancer, and the affected patients have a median survival of less than 1 year. Almost all malignant gliomas are incurable with the present standards of healthcare. Currently accepted therapeutic adjuvants to surgery, such as radiotherapy and chemotherapy, provide only a minor improvement in the disease course and life expectancy for patients diagnosed with malignant gliomas. Often, chemotherapy has failed to make any significant impact on the prognosis of disease because of significant local and systemic toxicity, problems with transport …
Age-Associated Hepatic Drug Transporter Expression And Its Implications For Pediatric Pharmacotherapyflexibility Affect Dna Topoisomerase I Function, Lisa Tang
Theses and Dissertations (ETD)
Members of the ATP-binding cassette (ABC) family of drug transporter proteins translocate various endogenous and exogenous substrates across intra- and extracellular membranes. Two specific ABC transporters, the multidrug resistance 1/P-glycoprotein (MDR1/P-gp) and the multidrug resistance protein 2 (MRP2), serve as major hepatic transporters that mediate the biliary excretion of various organic anions and cations along with glutathione-, glucuronate-, or sulfate-conjugates of several drug substrates. However, very little is known about the expression of these transporters in the early infant and childhood ages of human development. We, therefore, characterized the ontogeny of these transporters by measuring their gene and protein expression. …
The Role Of Multi-Drug Resistance Associated Protein 4 And P-Glycoprotein In Resistance Of Neuroblastoma To Topotecan And Irinotecan, Patricia Kellie Turner
The Role Of Multi-Drug Resistance Associated Protein 4 And P-Glycoprotein In Resistance Of Neuroblastoma To Topotecan And Irinotecan, Patricia Kellie Turner
Theses and Dissertations (ETD)
High-risk neuroblastoma presents a significant therapeutic challenge because the 5-year survival rate remains less than 30% despite the use of surgery, multi-agent chemotherapy, radiation, and autologous bone marrow transplant. Novel therapeutic modalities are under development. The camptothecin analogs topotecan and irinotecan have been identified as successful cytotoxic agents. For topotecan, pharmacokinetically guided dosing to achieve a systemic exposure associated with preclinical anti-tumor activity in neuroblastoma xenograft models is feasible and has elicited favorable responses in children with high-risk neuroblastoma. However, some children with high-risk disease did not respond to the putatively effective topotecan systemic exposure. These children represent a subset …
Synthesis Of Novel Sulfonamide-Based Calpain Inhibitors And Their Potential As Anti-Tumor Agents, Jin Xu
Synthesis Of Novel Sulfonamide-Based Calpain Inhibitors And Their Potential As Anti-Tumor Agents, Jin Xu
Theses and Dissertations (ETD)
Calpain is a class of intracellular cytoplasmic cysteine proteases.1 The enzyme participates in different intracellular signaling pathways that are mediated by Ca2+.2 The two major isoforms of calpain universally distributed in most mammalian tissues are calpain 1 (µ-calpain) and calpain 2 (m-calpain). The exact in vivo function of the enzyme is not clear, but calpain has been implicated in a variety of physiological and pathological conditions,3 such as cancer, stroke, cardiac ischaemia, muscular dystrophy, cataract and Alzheimer’s disease. Calpain inhibitors are therefore of interest as therapeutic agents and as biomedical tools.
Several potent calpain inhibitors isolated from natural sources as …
Role Of Medial Prefrontal Cortical Group Ii Metabotropic Glutamate Receptor In The Development Of Cocaine Sensitization, Xiaohu Xie
Theses and Dissertations (ETD)
The current studies examined the role of medial prefrontal cortical (mPFC) group II metabotropic glutamate receptors (mGluR2/3) in the development of cocaine sensitization. Initial studies demonstrated that intra-mPFC injection of the mGluR2/3 receptor agonist, APDC, dose-dependently reduced acute behavioral response to cocaine (0.015-15 nmol/side with significant effects starting at 1.5nmol/side). The effects of APDC were prevented by intra-mPFC co-injections of an mGluR2/3 antagonist, LY341495 (1.5 nmol/side). Repeated intra-mPFC APDC (1.5 nmol/side) injections also prevented the initiation of behavioral and neurochemical sensitization, which is defined as enhanced nucleus accumbens (NAc) dopamine response to cocaine. Once sensitization was …
Novel Carbopol-Wax Blends For Controlled Release Oral Dosage Forms, Natarajansoundarapandian Mariageraldrajan
Novel Carbopol-Wax Blends For Controlled Release Oral Dosage Forms, Natarajansoundarapandian Mariageraldrajan
Theses and Dissertations (ETD)
Carbopol is crosslinked acrylic acid. Carbopol can be used in developing formulations for transdermal, oral, rectal use. It is forms strong gel in low concentration. Therefore, it can be used in low concentration in developing controlled release formulations. This increases the cost effectiveness and number of formulation options. In spite of its effectiveness, carbopol is one of the most efficient however underutilized polymer in oral controlled drug delivery system development. This is attributed to the difficulty in processing the carbopol. Carbopol has poor flow characteristics and stickiness. Objective of our research is to eliminate processing difficulties of carbopol using hot …