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Articles 391 - 411 of 411
Full-Text Articles in Other Chemicals and Drugs
The First Total Synthesis Of (±)-4-Methoxydecanoic Acid: A Novel Antifungal Fatty Acid, Nestor Carballeira, Carlos Miranda, Keykavous Parang
The First Total Synthesis Of (±)-4-Methoxydecanoic Acid: A Novel Antifungal Fatty Acid, Nestor Carballeira, Carlos Miranda, Keykavous Parang
Pharmacy Faculty Articles and Research
The hitherto unknown (±)-4-methoxydecanoic acid was synthesized in six steps and in 25% overall yield starting from commercially available 4-penten-1-ol. The title compound demonstrated 17-fold higher antifungal activity (MIC = 1.5 mM) against Candida albicans ATCC 60193 and Cryptococcus neoformans ATCC 66031 when compared to unsubstituted n-decanoic acid. Our results demonstrate that mid-chain methoxylation appears to be a viable strategy for increasing the fungitoxicity of fatty acids.
Incentives For Orphan Drug Research And Development In The United States, Enrique Seoane-Vazquez, Rosa Rodriguez-Monguio, Sheryl L. Szeinbach, Jay Visaria
Incentives For Orphan Drug Research And Development In The United States, Enrique Seoane-Vazquez, Rosa Rodriguez-Monguio, Sheryl L. Szeinbach, Jay Visaria
Pharmacy Faculty Articles and Research
Background: The Orphan Drug Act (1983) established several incentives to encourage the development of orphan drugs (ODs) to treat rare diseases and conditions. This study analyzed the characteristics of OD designations, approvals, sponsors, and evaluated the effective patent and market exclusivity life of orphan new molecular entities (NMEs) approved in the US between 1983 and 2007.
Methods: Primary data sources were the FDA Orange Book, the FDA Office of Orphan Drugs Development, and the US Patent and Trademark Office. Data included all orphan designations and approvals listed by the FDA and all NMEs approved by the FDA during …
Composites Comprising Cholesterol And Carboxymethyl Cellulose, Vuk Uskoković
Composites Comprising Cholesterol And Carboxymethyl Cellulose, Vuk Uskoković
Pharmacy Faculty Articles and Research
Whereby cholesterol presents one of the major fatty substances in human body, carboxymethyl cellulose is a water-soluble derivative of cellulose, the most abundant dietary fiber. Whereas on one hand in vivo precipitation of cholesterol is the major cause of atherosclerosis, dietary fibers are on the other hand known for their ability to clean the fatty plaque deposited on intestinal pathways, and prevent its build-up in other critical areas within the organism. In this work, a method for the preparation of a composite material comprising cholesterol and carboxymethyl cellulose from 1-hexanol/water biphase mixtures is reported. Specificity of the interaction between the …
Common And Distinct Mechanisms Of Different Redox-Active Carcinogens Involved In The Transformation Of Mouse Jb6p+ Cells, Sun Yang, Bobbye J. Misner, Rita Chiu, Frank L. Meyskens Jr.
Common And Distinct Mechanisms Of Different Redox-Active Carcinogens Involved In The Transformation Of Mouse Jb6p+ Cells, Sun Yang, Bobbye J. Misner, Rita Chiu, Frank L. Meyskens Jr.
Pharmacy Faculty Articles and Research
We transformed JB6P+ cells with prolonged intermittent low-dose UVB radiation or prolonged exposure to low-dose H2O2 or CdCl2. Stable transformation was confirmed by an anchorage-independence assay. The JB6P+ transformants formed more colonies (∼six folds) in soft agar as compared to their JB6P+ parent cells and were associated with increased intracellular reactive oxygen species (ROS) levels. Activating protein-1 (AP-1) is a family of transcription factors that are rapidly activated by elevated intracellular ROS levels, and their composition is important in the process of cellular transformation and/or tumor progression. To investigate if carcinogenesis induced by distinct carcinogens was via similar molecular mechanisms …
Synthesis And Antifungal Properties Of Alpha-Methoxy And Alpha-Hydroxyl Substituted 4-Thiatetradecanoic Acids, Nestor Carballeira, Rosann O'Neill, Keykavous Parang
Synthesis And Antifungal Properties Of Alpha-Methoxy And Alpha-Hydroxyl Substituted 4-Thiatetradecanoic Acids, Nestor Carballeira, Rosann O'Neill, Keykavous Parang
Pharmacy Faculty Articles and Research
4-Thiatetradecanoic acid exhibited weak antifungal activities against Candida albicans (ATCC 60193), Cryptococcus neoformans (ATCC 6603 1), and Aspergillus niger (ATCC 16404) (MIC = 4.8-12.7 mM). It has been demonstrated that alpha-methoxylation efficiently blocks P-oxidation and significantly improve the antifungal activities of fatty acids. We examined whether antifungal activity of 4-thiatetradecanoic acid can be improved by a-substitution. The unprecedented (+/-)-2-tiydroxy-4-thiatetradecanoic acid was synthesized in four steps (20% overall yield), while the (+/-)-2-methoxy-4-thiatetradecanoic acid was synthesized in five steps (14% overall yield) starting from 1-decanethiol. The key step in the synthesis was the hydrolysis of a trimethylsilyloxynitrile. In general, the novel (+/-)-2-methoxy-4-thiatetradecanoic …
Cost Prevention Of Hiv, Jerika Lam
Cost Prevention Of Hiv, Jerika Lam
Pharmacy Faculty Articles and Research
"Since the introduction of highly active antiretroviral therapy (HAART) in the late 1990s, management of patients with human immunodeficiency virus (HIV) infection has improved where they are living longer and with fewer incidences of opportunistic illnesses. Furthermore, significant progress has been made in the understanding of the disease, the ability to quantify viral load and correlate with clinical outcomes, genotypic and phenotypic resistance assays designed to assess viral susceptibility, and a heightened awareness and appreciation of the importance of treatment adherence to ensure virologic suppression.' In spite of the benefits that HIV-infected patients may have acquired in terms of more …
Cigarette Smoking And Risk Of Glioma: A Prospective Cohort Study, Stephanie A. Navarro Silvera, Anthony B. Miller, Thomas E. Rohan
Cigarette Smoking And Risk Of Glioma: A Prospective Cohort Study, Stephanie A. Navarro Silvera, Anthony B. Miller, Thomas E. Rohan
Department of Public Health Scholarship and Creative Works
The etiology of glioma, the most commonly diagnosed malignant brain tumor among adults in the United States, is poorly understood. N‐nitroso compounds are known carcinogens, which are found in cigarette smoke and can induce gliomas in rats. On this basis, it has been hypothesized that cigarette smoking may be associated with an increased risk of glioma. We investigated the association between cigarette smoking and glioma risk in the National Breast Screening Study, which included 89,835 Canadian women aged 40–59 years at recruitment between 1980 and 1985. Linkages to national cancer and mortality databases yielded data on cancer incidence and deaths …
Dietary Folate, Alcohol Consumption, And Risk Of Ovarian Cancer In An Italian Case-Control Study, Claudio Pelucchi, Monia Mereghetti, Renato Talamini, Eva Negri, Maurizio Montella, Valerio Ramazzotti, Silvia Franceschi, Carlo La Vecchia
Dietary Folate, Alcohol Consumption, And Risk Of Ovarian Cancer In An Italian Case-Control Study, Claudio Pelucchi, Monia Mereghetti, Renato Talamini, Eva Negri, Maurizio Montella, Valerio Ramazzotti, Silvia Franceschi, Carlo La Vecchia
Department of Public Health Scholarship and Creative Works
An increasing number of studies are focusing on the potential association between dietary folate intake and risk of various cancers (1), particularly of the colorectum and breast (2, 3). A low folate status can induce misincorporation of uracil into DNA, leading to chromosome breaks in humans and hence increasing cancer risk (4). Alcohol may increase folate requirements in the body and cause relative folate deficiencies (2). Although several findings on the relation between folate intake and ovarian cancer risk are inconsistent (5-9), recent results from two prospective …
“Effects Of N-3 And N-6 Polyunsaturated Fatty Acids On Human Promyelocytic Hl- 60 Cells, Robert Clements Gillis
“Effects Of N-3 And N-6 Polyunsaturated Fatty Acids On Human Promyelocytic Hl- 60 Cells, Robert Clements Gillis
Doctoral Dissertations
Enteral nutrition with eicosapentaenoic acid (EPA; 20:5 n-3) and γ-linolenic acid (GLA; 18:3 n-6) decreased pulmonary inflammation by reducing neutrophil counts and chemotactic factors in bronchoalveolar lavage fluid during acute respiratory distress syndrome (ARDS). We hypothesize that the antiinflammatory effects of EPA and GLA may be due, in part, to induction of neutrophil apoptosis. Neutrophil apoptosis is an important physiological process in the resolution of pulmonary inflammation. Furthermore, pro-inflammatory eicosanoids formed from arachidonic acid (AA) by lipoxygenase (LO) and cyclooxygenase (COX) pathways have been shown to inhibit apoptosis in certain cell types. The purpose of this dissertation is to determine …
Studies On The Regulation Of Mu Opioid Receptor Mrna Expression In Shsy-5y Human Neuroblastoma Cells, Xin Yu
Studies On The Regulation Of Mu Opioid Receptor Mrna Expression In Shsy-5y Human Neuroblastoma Cells, Xin Yu
Seton Hall University Dissertations and Theses (ETDs)
Prolonged exposure to morphine down-regulates mu opioid receptors (MOR) on both undifferentiated and differentiated (retinoic acid or phorbol ester treated) SHSY-5Y cells. However, morphine pretreatment does not alter MOR receptor affinity for morphine. To investigate the molecular basis for MOR regulation after exposure to its selective agonists, we have developed a quantitative competitive reverse transcriptase-polymerase chain reaction (QC-RT PCR) to quantify the expression of MOR in SHSY-SY cells. Differentiation of SHSY-5Y cells with retinoic acid or phorbol ester up regulated MOR mRNA expression by 30 % and 78%, respectively. A 24 hours treatment with morphine (10 µM) down regulated MOR …
Truth Serum And Terrorism, Ibpp Editor
Truth Serum And Terrorism, Ibpp Editor
International Bulletin of Political Psychology
This article describes several epistemological--as opposed to ethical and moral--anxieties in administering drugs to individuals for the purpose of securing truths supporting the United States Government (USG)-declared war against terrorism with global research.
Dextran-Methylprednisolone Succinate As A Prodrug Of Methylprednisolone: Plasma And Tissue Disposition, Xiaoping Zhang, Reza Mehvar
Dextran-Methylprednisolone Succinate As A Prodrug Of Methylprednisolone: Plasma And Tissue Disposition, Xiaoping Zhang, Reza Mehvar
Pharmacy Faculty Articles and Research
Plasma and tissue disposition of a macromolecular prodrug of methylprednisolone (MP), dextran (70 kDa)–methylprednisolone succinate (DMP), was studied in rats. Single 5‐mg/kg doses of DMP or unconjugated MP were administered into the tail veins of different groups of rats (n = 4/group/time point). Blood (cardiac puncture) and tissues (liver, spleen, kidney, heart, lung, thymus, and brain) were collected at various times after DMP (0–96 h) or MP (0–2 h) injections. Concentrations of DMP and MP in samples were analyzed by size‐exclusion chromatography (SEC) and reversed‐phase high‐performance liquid chromatography (HPLC), respectively. Conjugation of MP with 70‐kDa dextran resulted in 22‐, …
Drugged: Research And Policymakers Confronting Illicit And Illegal Drugs, Ibpp Editor
Drugged: Research And Policymakers Confronting Illicit And Illegal Drugs, Ibpp Editor
International Bulletin of Political Psychology
This article explores the application of research on policies towards illicit and illegal drugs.
Antioxidation Activity Of Dhea And Its Mechanisms, Sun Yang, Han Rui
Antioxidation Activity Of Dhea And Its Mechanisms, Sun Yang, Han Rui
Pharmacy Faculty Articles and Research
Objective: The aim of this study was to determine the anti-oxidative activity of a new chemopreventive agent--dehydroepiandrosterone (DHEA), and the mechanisms of action by which DHEA protect the thymocytes and DNA from oxidative damage. Methods: Agarose gel electrophoresis, flow cytometry, single cel! gel electrophoresis, chemiluminescence assay, triazolyl blue tetrazolumbromide (MTT) colorimetry, and three dimensional collagen gel assay were used. Results: In agarose gel electrophoresis, 10 nmol/L DHEA blocked the typical DNA degradation (DNA Ladder) induced by H2O2. DHEA 2. 5 nmol/L and 10 nmol/L both significantly decreased the percentage of characteristic apoptotic DNA …
Trends. On Drugs? Response To The Peruvian Elections, Ibpp Editor
Trends. On Drugs? Response To The Peruvian Elections, Ibpp Editor
International Bulletin of Political Psychology
This article discusses electoral "dirty tricks" in the Peruvian election between President Alberto Fuimori and Mr. Alejandro Toledo. The article also discusses comments made by the head of the United States (US) Office of National Drug Policy and Control, General Barry R. McCaffrey.
A Case For Caution: An Evaluation Of Calabrese And Baldwin's Studies Of Chemical Hormesis, Kevin C. Elliott
A Case For Caution: An Evaluation Of Calabrese And Baldwin's Studies Of Chemical Hormesis, Kevin C. Elliott
RISK: Health, Safety & Environment (1990-2002)
Suggesting a need for more research, Mr. Elliott argues that it is too soon for risk-assessment policy to account for recent challenges to a toxicological linear dose-response assumption.
Choosing Shower Dips For Sheep Lice, Tony Higgs, Bob Love
Choosing Shower Dips For Sheep Lice, Tony Higgs, Bob Love
Journal of the Department of Agriculture, Western Australia, Series 4
The performance of all shower dip chemicals for sheep lice can vary depending on the active chemical and the conditions under which they are used.
Department of Agriculture trials have indicated that the wettable powders coumaphos and magnesium fluorosilicate were less effective at eradicating sheep lice than were synthetic pyrethroid and organophosphate dipping chemicals.
However, failure to eradicate sheep lice may be the result of several factors, many of them related to management.
Policy For Identifying And Assessing The Health Risks Of Toxic Substances, Maine Bureau Of Health
Policy For Identifying And Assessing The Health Risks Of Toxic Substances, Maine Bureau Of Health
Maine Collection
Policy for Identifying and Assessing the Health Risks of Toxic Substances
by Norman T. Anderson, Environmental Toxicology Program, Division of Disease Control, Bureau of Health (February, 1988).
Contents: Section I: Introduction / Section II: Methods / Section III: Exposure Assessment / Section IV: Hazard Identification / Section V: Hazard Assessment / Section VI: Risk Characterization / List of Figures / List of Tables
Adaptive Responses To Chemical Labeling: Are Workers Bayesian Decision Makers?, W. Kip Viscusi, Charles J. O'Conner
Adaptive Responses To Chemical Labeling: Are Workers Bayesian Decision Makers?, W. Kip Viscusi, Charles J. O'Conner
Vanderbilt Law School Faculty Publications
A fundamental issue in the economics of uncertainty is how individuals process information and make choices under uncertainty. In a recent analysis of the findings on risk perception, Kenneth Arrow (1982) concluded that the evidence regarding individual rationality was, at best, quite mixed. A prominent example of apparent irrationality of actual consumer behavior is that consumers, who presumably are risk averse, have failed to purchase heavily subsidized federal flood insurance. In the case of the market for hazardous jobs, which is the focus of this study, Viscusi (1979) found that workers' risk perceptions were positively correlated with the industry risk …
The Copper Status Of Vegetarian And Non-Vegetarian Men, Susan Bruce
The Copper Status Of Vegetarian And Non-Vegetarian Men, Susan Bruce
Loma Linda University Electronic Theses, Dissertations & Projects
In this study, the copper status of 18 vegetarian and 17 non-vegetarian men were compared. Copper status was assessed by determining red blood cell superoxide dismutase (RBC-SOD) activity and plasma copper. Plasma copper levels were measured by atomic absorption spectroscopy. Plasma cholesterol, triacyclglycerols, HDL cholesterol, LDL cholesterol VLDL cholesterol were also determined. Twenty-four hour recalls and three-day food records were obtained to determine copper, zinc, energy, protein, fat, fiber, saturated fat, oleic acid, linoleic acid and cholesterol intake. Non-vegetarians had a significantly higher plasma cholesterol and LDL cholesterol than vegetarians. They also had a significantly higher cholesterol, saturated fat, percent …
The Use Of Pickled Wheat In Poultry Feeding, P Smetana
The Use Of Pickled Wheat In Poultry Feeding, P Smetana
Journal of the Department of Agriculture, Western Australia, Series 4
FEEDING fungicides to poultry can result in harmful effects, to the birds themselves, and to their human consumers.
To prevent such effects it is advisable that wheat pickled with fungicides should not be included in poultry rations.