13 results on '"DePee, S"'
Search Results
2. The bioavailability of oral GI 147211 (GG211), a new topoisomerase I inhibitor
- Author
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Gerrits, CJH, Schellens, JHM (Jan), Creemers, GJ, Wissel, P, Planting, AST, Pritchard, J, DePee, S, Boer d - Dennert, M, Harteveld, M, Verweij, Jaap, and Medical Oncology
- Published
- 1997
3. A phase I clinical and pharmacokinetic study of the new topoisomerase inhibitor GI147211 given as a 72-h continuous infusion
- Author
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Paz-Ares, L, primary, Kunka, R, additional, DeMaria, D, additional, Cassidy, J, additional, Alden, M, additional, Beranek, P, additional, Kaye, S, additional, Littlefield, D, additional, Reilly, D, additional, Depee, S, additional, Wissel, P, additional, Twelves, C, additional, and O'Dwyer, P, additional
- Published
- 1998
- Full Text
- View/download PDF
4. The bioavailability of oral GI147211 (GG211), a new topoisomerase I inhibitor
- Author
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Gerrits, CJH, primary, Schellens, JHM, additional, Creemers, GJ, additional, Wissel, P, additional, Planting, ASTh, additional, Pritchard, JF, additional, DePee, S, additional, de Boer-Dennert, M, additional, Harteveld, M, additional, and Verweij, J, additional
- Published
- 1997
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5. 928 Phase I trial of the topoisomerase I inhibitor GG211 as a 72-hour infusion
- Author
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O’Dwyer, P., primary, Pas-Arez, L., additional, Kunka, R., additional, DeMaria, D., additional, Cassidy, J., additional, Kaye, S., additional, DePee, S., additional, Littlefield, D., additional, Selinger, K., additional, Beranek, P., additional, Graham, J., additional, and Wissel, P., additional
- Published
- 1995
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6. Determination of GI147211 in human blood by HPLC with fluorescence detection
- Author
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Selinger, K., Smith, G., Depee, S., and Aureche, C.
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- 1995
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7. Intrahousehold management and use of nutritional supplements during the hunger gap in Maradi region, Niger: a qualitative study.
- Author
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Marquer C, Langendorf C, Woi-Messe LC, Berthe F, Ategbo EA, Rodas-Moya S, dePee S, and Grais RF
- Abstract
Background: Nutritional supplements are used for preventing and treating childhood malnutrition. While there is a growing body of evidence on product efficacy, less emphasis has been placed on how they are perceived and used at the household level. Here, we report on the intrahousehold management of three different supplements (Ready to Use Supplementary food (RUSF), medium quantity lipid-based nutrient supplements (LNS-MQ) and Super Cereal Plus (SC+)) in the region of Maradi (Niger). The main objective of this study was to describe the use, consumption and perception of the three different nutritional products at the household level., Methods: The study was conducted in the Madarounfa district in the region of Maradi (February - March 2012). Female caregivers were purposely selected from eligible households and invited to participate. Data were collected through focus group discussion and interviews and were analyzed using thematic content analysis., Results: In total, 114 caregivers participated. Three major themes were initially identified and included preparation and conservation; consumption and sharing practices as well as perception of impact. The data showed good acceptance at the household level including perceived benefits for the target children, health improvement, prevention of illness and malnutrition. Sharing and gifting at both household and community level were also reported., Conclusions: Caregivers displayed positive perceptions toward the investigated supplements. Patterns of actual management should be considered in the design, implementation, monitoring and evaluation of future programs., Competing Interests: Competing interestsThe authors declare they have no competing interest., (© The Author(s). 2020.)
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- 2020
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8. Micronutrient powder programs: New findings and future directions for implementation science.
- Author
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Pelletier D and DePee S
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- Child, Child, Preschool, Humans, Infant, Powders, Program Evaluation statistics & numerical data, Dietary Supplements, Food, Fortified, Implementation Science, Micronutrients administration & dosage, Program Evaluation methods
- Published
- 2019
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- View/download PDF
9. Longitudinal assessment of associations between food insecurity, antiretroviral adherence and HIV treatment outcomes in rural Uganda.
- Author
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Weiser SD, Palar K, Frongillo EA, Tsai AC, Kumbakumba E, Depee S, Hunt PW, Ragland K, Martin J, and Bangsberg DR
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- Adolescent, Adult, Anti-Retroviral Agents therapeutic use, CD4 Lymphocyte Count, Cohort Studies, Female, Humans, Interviews as Topic, Longitudinal Studies, Male, Middle Aged, Rural Population, Treatment Outcome, Uganda, Viral Load, Young Adult, Food Supply, HIV Infections drug therapy, Medication Adherence
- Abstract
Introduction: Food insecurity is a potentially important barrier to the success of antiretroviral therapy (ART) programs in resource-limited settings. We undertook a longitudinal study in rural Uganda to estimate the associations between food insecurity and HIV treatment outcomes., Design: Longitudinal cohort study., Methods: Participants were from the Uganda AIDS Rural Treatment Outcomes study and were followed quarterly for blood draws and structured interviews. We measured food insecurity with the validated Household Food Insecurity Access Scale. Our primary outcomes were: ART nonadherence (adherence <90%) measured by visual analog scale; incomplete viral load suppression (>400 copies/ml); and low CD4 T-cell count (<350 cells/μl). We used generalized estimating equations to estimate the associations, adjusting for socio-demographic and clinical variables., Results: We followed 438 participants for a median of 33 months; 78.5% were food insecure at baseline. In adjusted analyses, food insecurity was associated with higher odds of ART nonadherence [adjusted odds ratio (AOR) 1.56, 95% confidence interval (CI) 1.10-2.20, P < 0.05], incomplete viral suppression (AOR 1.52, 95% CI 1.18-1.96, P < 0.01), and CD4 T-cell count less than 350 (AOR 1.47, 95% CI 1.24-1.74, P < 0.01). Adding adherence as a covariate to the latter two models removed the association between food insecurity and viral suppression, but not between food insecurity and CD4 T-cell count., Conclusions: Food insecurity is longitudinally associated with poor HIV outcomes in rural Uganda. Intervention research is needed to determine the extent to which improved food security is causally related to improved HIV outcomes and to identify the most effective policies and programs to improve food security and health.
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- 2014
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10. Program experience with micronutrient powders and current evidence.
- Author
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Rah JH, dePee S, Kraemer K, Steiger G, Bloem MW, Spiegel P, Wilkinson C, and Bilukha O
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- Child, Preschool, Female, Humans, Infant, Pregnancy, Micronutrients administration & dosage, Powders
- Abstract
The efficacy of micronutrient powders (MNP) in the treatment of anemia in moderately anemic children aged 6-24 mo has been clearly demonstrated. The evidence of the effectiveness of MNP in large-scale programs, however, is scarce. This article describes the program experience and findings of large-scale MNP distribution in refugee camps and in an emergency context in Bangladesh, Nepal, and Kenya. The MNP contained 15-16 micronutrients as per the WHO/World Food Programme/UNICEF joint statement, whereas the iron content was reduced to 2.5 mg from NaFeEDTA in a malaria-endemic area in Kenya. Hundreds of thousands of children aged 6-59 mo and pregnant and lactating women were targeted to consume MNP either daily or every other day over an extended period of time. Extensive social marketing campaigns were undertaken to promote regular use of the product. A number of studies were embedded in the programs to assess the impact of MNP on the nutritional status of target beneficiaries. Some improvements in anemia prevalence estimates were observed in particular subgroups, but other results did not show significant improvements. A significant decrease in the prevalence of stunting was observed in Nepal and Kenya but not in Bangladesh. Diarrhea episodes decreased significantly among children receiving MNP in Nepal. A key challenge is to ensure high MNP acceptance and adherence among beneficiaries. Investigation of non-nutritional causes of anemia is warranted in settings with high compliance but no improvement in hemoglobin status. Further investigation into the most appropriate manner to use MNP in malaria endemic settings is warranted.
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- 2012
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11. Effects of the cFMS kinase inhibitor 5-(3-methoxy-4-((4-methoxybenzyl)oxy)benzyl)pyrimidine-2,4-diamine (GW2580) in normal and arthritic rats.
- Author
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Conway JG, Pink H, Bergquist ML, Han B, Depee S, Tadepalli S, Lin P, Crumrine RC, Binz J, Clark RL, Selph JL, Stimpson SA, Hutchins JT, Chamberlain SD, and Brodie TA
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- Animals, Anisoles pharmacology, Arthritis, Experimental pathology, Cells, Cultured, Humans, Male, Protein Kinase Inhibitors pharmacology, Pyrimidines pharmacology, Rats, Rats, Inbred Lew, Sarcoma Viruses, Feline drug effects, Sarcoma Viruses, Feline enzymology, Anisoles therapeutic use, Arthritis, Experimental drug therapy, Arthritis, Experimental enzymology, Protein Kinase Inhibitors therapeutic use, Pyrimidines therapeutic use, Receptor, Macrophage Colony-Stimulating Factor antagonists & inhibitors
- Abstract
The cFMS (cellular homolog of the V-FMS oncogene product of the Susan McDonough strain of feline sarcoma virus) (Proc Natl Acad Sci U S A 83:3331-3335, 1986) kinase inhibitor 5-(3-methoxy-4-((4-methoxybenzyl)oxy)benzyl)pyrimidine-2,4-diamine (GW2580) inhibits colony-stimulating factor (CSF)-1-induced monocyte growth and bone degradation in vitro and inhibits CSF-1 signaling through cFMS kinase in 4-day models in mice (Proc Natl Acad Sci U S A 102:16078, 2005). In the present study, the kinase selectivity of GW2580 was further characterized, and the effects of chronic treatment were evaluated in normal and arthritic rats. GW2580 selectively inhibited cFMS kinase compared with 186 other kinases in vitro and completely inhibited CSF-1-induced growth of rat monocytes, with an IC(50) value of 0.2 microM. GW2580 dosed orally at 25 and 75 mg/kg 1 and 5 h before the injection of lipopolysaccharide inhibited tumor necrosis factor-alpha production by 60 to 85%, indicating a duration of action of at least 5 h. In a 21-day adjuvant arthritis model, GW2580 dosed twice a day (b.i.d.) from days 0 to 21, 7 to 21, or 14 to 21 inhibited joint connective tissue and bone destruction as assessed by radiology, histology and bone mineral content measurements. In contrast, GW2580 did not affect ankle swelling in the adjuvant model nor did it affect ankle swelling in a model where local arthritis is reactivated by peptidoglycan polysaccharide polymers. GW2580 administered to normal rats for 21 days showed no effects on tissue histology and only modest changes in serum clinical chemistry and blood hematology. In conclusion, GW2580 was effective in preserving joint integrity in the adjuvant arthritis model while showing minimal effects in normal rats.
- Published
- 2008
- Full Text
- View/download PDF
12. Inhibition of colony-stimulating-factor-1 signaling in vivo with the orally bioavailable cFMS kinase inhibitor GW2580.
- Author
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Conway JG, McDonald B, Parham J, Keith B, Rusnak DW, Shaw E, Jansen M, Lin P, Payne A, Crosby RM, Johnson JH, Frick L, Lin MH, Depee S, Tadepalli S, Votta B, James I, Fuller K, Chambers TJ, Kull FC, Chamberlain SD, and Hutchins JT
- Subjects
- Administration, Oral, Animals, Anisoles administration & dosage, Anisoles pharmacokinetics, Biological Availability, Bone Resorption prevention & control, Cell Line, Tumor, Cell Proliferation drug effects, Cells, Cultured, Cytokines biosynthesis, Cytokines drug effects, Female, Humans, Lipopolysaccharides pharmacology, Macrophages drug effects, Macrophages immunology, Macrophages metabolism, Mice, Mice, Inbred Strains, Monocytes drug effects, Monocytes immunology, Monocytes metabolism, Protein Kinase Inhibitors administration & dosage, Protein Kinase Inhibitors pharmacokinetics, Pyrimidines administration & dosage, Pyrimidines pharmacokinetics, Rats, Anisoles pharmacology, Macrophage Colony-Stimulating Factor antagonists & inhibitors, Protein Kinase Inhibitors pharmacology, Pyrimidines pharmacology, Receptor, Macrophage Colony-Stimulating Factor antagonists & inhibitors, Signal Transduction drug effects
- Abstract
Colony-stimulating-factor-1 (CSF-1) signaling through cFMS receptor kinase is increased in several diseases. To help investigate the role of cFMS kinase in disease, we identified GW2580, an orally bioavailable inhibitor of cFMS kinase. GW2580 completely inhibited human cFMS kinase in vitro at 0.06 microM and was inactive against 26 other kinases. GW2580 at 1 microM completely inhibited CSF-1-induced growth of mouse M-NFS-60 myeloid cells and human monocytes and completely inhibited bone degradation in cultures of human osteoclasts, rat calvaria, and rat fetal long bone. In contrast, GW2580 did not affect the growth of mouse NS0 lymphoblastoid cells, human endothelial cells, human fibroblasts, or five human tumor cell lines. GW2580 also did not affect lipopolysaccharide (LPS)-induced TNF, IL-6, and prostaglandin E2 production in freshly isolated human monocytes and mouse macrophages. After oral administration, GW2580 blocked the ability of exogenous CSF-1 to increase LPS-induced IL-6 production in mice, inhibited the growth of CSF-1-dependent M-NFS-60 tumor cells in the peritoneal cavity, and diminished the accumulation of macrophages in the peritoneal cavity after thioglycolate injection. Unexpectedly, GW2580 inhibited LPS-induced TNF production in mice, in contrast to effects on monocytes and macrophages in vitro. In conclusion, GW2580's selective inhibition of monocyte growth and bone degradation is consistent with cFMS kinase inhibition. The ability of GW2580 to chronically inhibit CSF-1 signaling through cFMS kinase in normal and tumor cells in vivo makes GW2580 a useful tool in assessing the role of cFMS kinase in normal and disease processes.
- Published
- 2005
- Full Text
- View/download PDF
13. Phase I and pharmacokinetic study of GI147211, a water-soluble camptothecin analogue, administered for five consecutive days every three weeks.
- Author
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Eckhardt SG, Baker SD, Eckardt JR, Burke TG, Warner DL, Kuhn JG, Rodriguez G, Fields S, Thurman A, Smith L, Rothenberg ML, White L, Wissel P, Kunka R, DePee S, Littlefield D, Burris HA, Von Hoff DD, and Rowinsky EK
- Subjects
- Adult, Aged, Antineoplastic Agents administration & dosage, Camptothecin administration & dosage, Camptothecin adverse effects, Camptothecin pharmacokinetics, Drug Administration Schedule, Female, Humans, Infusions, Intravenous, Male, Middle Aged, Neoplasms blood, Neutropenia chemically induced, Thrombocytopenia chemically induced, Antineoplastic Agents adverse effects, Antineoplastic Agents pharmacokinetics, Camptothecin analogs & derivatives, Neoplasms drug therapy
- Abstract
GI1147211 is a 7-substituted 10,11-ethylenedioxy-20(S)-camptothecin analogue that inhibits the nuclear enzyme topoisomerase I. In this Phase I and pharmacological study, 24 patients with advanced solid malignancies received a total of 72 courses of GI147211 as a 30-min infusion daily for 5 consecutive days, at doses ranging from 0.3 to 1.75 mg/m2/day. Severe neutropenia precluded dose escalation above 1.5 mg/m2/day in minimally pretreated patients, and both severe neutropenia and thrombocytopenia were dose limiting in heavily pretreated patients at doses above 1.0 mg/m2/day. These doses are, therefore, recommended for subsequent Phase II evaluations of GI147211 in patients with comparable prior therapy. Nonhematological toxicities, including nausea, vomiting, fatigue, and anorexia, were mild to moderate. The disposition of GI147211 in blood was described by a linear three-compartment model, with renal elimination accounting for only 11% of drug distribution. No relationship was observed between the pharmacological exposure to GI147211 and effects on neutrophils; however, patients who developed dose-limiting myelosuppression did experience greater exposure to both the lactone and total forms of the drug. The hydrolysis kinetics of GI147211 revealed not only a shift of the drug to the inactive carboxylate form in human serum albumin but also stabilization of the lactone in erythrocytes, perhaps accounting for the observed lactone:total area under the concentration-time curve ratio of 0.27. These results indicate that GI147211 exhibits predictable toxicities and that further studies are warranted to determine the distinct role of this compound among currently available camptothecin analogues.
- Published
- 1998
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