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Articles 1 - 15 of 15
Full-Text Articles in Oncology
Vitamin K2 (Menaquinone) Supplementation And Its Benefits In Cardiovascular Disease, Osteoporosis, And Cancer, Grant S. Buchanan, Md, Thomas Melvin, Brandon Merritt, Charles Bishop, Md, Franklin D. Shuler, Md, Phd
Vitamin K2 (Menaquinone) Supplementation And Its Benefits In Cardiovascular Disease, Osteoporosis, And Cancer, Grant S. Buchanan, Md, Thomas Melvin, Brandon Merritt, Charles Bishop, Md, Franklin D. Shuler, Md, Phd
Franklin D. Shuler
Vitamin K is known to play an essential role in the coagulation cascade; however, a growing body of research has found that a subtype of this vitamin, vitamin K2 (menaquinone) may have a beneficial effect in osteoporosis, cardiovascular disease, and cancer. This purpose of this article is to provide a comprehensive review of recent literature regarding menaquinone and its role in human health. This review discusses the physiology of menaquinone, its clinical benefits in cardiovascular disease, osteoporosis, and cancer, and how it may interact with certain medications. The authors conclude that menaquinone supplementation has been shown to improve carboxylation of …
Regulation Of Retinoic Acid Receptor Α By Protein Kinase C In B16 Mouse Melanoma Cells, Goran Boskovic, Dinakar Desai, Richard M. Niles
Regulation Of Retinoic Acid Receptor Α By Protein Kinase C In B16 Mouse Melanoma Cells, Goran Boskovic, Dinakar Desai, Richard M. Niles
Goran Boskovic
We have previously found that retinoic acid stimulates the expression of protein kinase Cα (PKC) in B16 mouse melanoma cells. Because it has been reported that PKC can phosphorylate retinoic acid receptor (RAR) and alter its function, we determined whether changes in the level and/or activity of PKC could affect the expression or function of the RAR in B16 melanoma. Using in vivophosphorylation and band shift techniques, we could not demonstrate that altering PKC activity and/or protein level changed thein vivo phosphorylation of RARα. However activation of PKC resulted in increased RARα protein. Increased receptor protein correlated with a phorbol …
Vitamin A And Cancer, Richard M. Niles
Vitamin A And Cancer, Richard M. Niles
Richard M. Niles
Vitamin A, its physiological metabolites and synthetic derivatives (retinoids) have been shown to have protective effects against the development of certain types of cancer. In addition, pharmacological amounts of retinoids have been used with some success in the treatment of a few human tumors. The chemoprevention effect of retinoids is most likely exerted at the tumor promotion phase of carcinogenesis. Retinoids block tumor promotion by either inhibiting proliferation, inducing apoptosis, inducing differentiation, or a combination of these actions. Clinically, isotretinoin (13-cis-retinoic acid) significantly decreases the incidence of second primary tumors in patients with head and neck cancer and also reduces …
Regulation Of Retinoic Acid Receptor Α By Protein Kinase C In B16 Mouse Melanoma Cells, Goran Boskovic, Dinakar Desai, Richard M. Niles
Regulation Of Retinoic Acid Receptor Α By Protein Kinase C In B16 Mouse Melanoma Cells, Goran Boskovic, Dinakar Desai, Richard M. Niles
Richard M. Niles
We have previously found that retinoic acid stimulates the expression of protein kinase Cα (PKC) in B16 mouse melanoma cells. Because it has been reported that PKC can phosphorylate retinoic acid receptor (RAR) and alter its function, we determined whether changes in the level and/or activity of PKC could affect the expression or function of the RAR in B16 melanoma. Using in vivophosphorylation and band shift techniques, we could not demonstrate that altering PKC activity and/or protein level changed thein vivo phosphorylation of RARα. However activation of PKC resulted in increased RARα protein. Increased receptor protein correlated with a phorbol …
Suppression Of Implanted Mda-Mb 231 Human Breast Cancer Growth In Nude Mice By Dietary Walnut, W. Elaine Hardman, Gabriela Ion
Suppression Of Implanted Mda-Mb 231 Human Breast Cancer Growth In Nude Mice By Dietary Walnut, W. Elaine Hardman, Gabriela Ion
Elaine Hardman Ph.D.
Walnuts contain components that may slow cancer growth including omega 3 fatty acids, phytosterols, polyphenols, carotenoids, and melatonin. A pilot study was performed to determine whether consumption of walnuts could affect growth of MDA-MB 231 human breast cancers implanted into nude mice. Tumor cells were injected into nude mice that were consuming an AIN-76A diet slightly modified to contain 10% corn oil. After the tumors reached 3 to 5 mm diameter, the diet of one group of mice was changed to include ground walnuts, equivalent to 56 g (2 oz) per day in humans. The tumor growth rate from Day …
Suppression Of Implanted Mda-Mb 231 Human Breast Cancer Growth In Nude Mice By Dietary Walnut, W. Elaine Hardman, Gabriela Ion
Suppression Of Implanted Mda-Mb 231 Human Breast Cancer Growth In Nude Mice By Dietary Walnut, W. Elaine Hardman, Gabriela Ion
Gabriela Ion
Walnuts contain components that may slow cancer growth including omega 3 fatty acids, phytosterols, polyphenols, carotenoids, and melatonin. A pilot study was performed to determine whether consumption of walnuts could affect growth of MDA-MB 231 human breast cancers implanted into nude mice. Tumor cells were injected into nude mice that were consuming an AIN-76A diet slightly modified to contain 10% corn oil. After the tumors reached 3 to 5 mm diameter, the diet of one group of mice was changed to include ground walnuts, equivalent to 56 g (2 oz) per day in humans. The tumor growth rate from Day …
Resveratrol Is Rapidly Metabolized In Athymic (Nu/Nu) Mice And Does Not Inhibit Human Melanoma Xenograft Tumor Growth, Richard Niles, Carla Cook, Gary Meadows, Ya-Min Fu, Jerry Mclaughlin, Gary Rankin
Resveratrol Is Rapidly Metabolized In Athymic (Nu/Nu) Mice And Does Not Inhibit Human Melanoma Xenograft Tumor Growth, Richard Niles, Carla Cook, Gary Meadows, Ya-Min Fu, Jerry Mclaughlin, Gary Rankin
Carla R. Cook
Resveratrol has been shown to have anticarcinogenic activity. We previously found that resveratrol inhibited growth and induced apoptosis in 2 human melanoma cell lines. In this study we determined whether resveratrol would inhibit human melanoma xenograft growth. Athymic mice received control diets or diets containing 110 μmol/L or 263 μmol/L resveratrol, 2 wk prior to subcutaneous injection of the tumor cells. Tumor growth was measured during a 3-wk period. Metabolism of resveratrol was assayed by bolus gavage of 75 mg/kg resveratrol in tumor-bearing and nontumor-bearing mice. Pellets containing 10–100 mg resveratrol were implanted into the mice, next to newly palpated …
Resveratrol Is Rapidly Metabolized In Athymic (Nu/Nu) Mice And Does Not Inhibit Human Melanoma Xenograft Tumor Growth, Richard Niles, Carla Cook, Gary Meadows, Ya-Min Fu, Jerry Mclaughlin, Gary Rankin
Resveratrol Is Rapidly Metabolized In Athymic (Nu/Nu) Mice And Does Not Inhibit Human Melanoma Xenograft Tumor Growth, Richard Niles, Carla Cook, Gary Meadows, Ya-Min Fu, Jerry Mclaughlin, Gary Rankin
Gary O. Rankin
Resveratrol has been shown to have anticarcinogenic activity. We previously found that resveratrol inhibited growth and induced apoptosis in 2 human melanoma cell lines. In this study we determined whether resveratrol would inhibit human melanoma xenograft growth. Athymic mice received control diets or diets containing 110 μmol/L or 263 μmol/L resveratrol, 2 wk prior to subcutaneous injection of the tumor cells. Tumor growth was measured during a 3-wk period. Metabolism of resveratrol was assayed by bolus gavage of 75 mg/kg resveratrol in tumor-bearing and nontumor-bearing mice. Pellets containing 10–100 mg resveratrol were implanted into the mice, next to newly palpated …
Omega-3 Fatty Acids To Augment Cancer Therapy, W. Hardman
Omega-3 Fatty Acids To Augment Cancer Therapy, W. Hardman
Elaine Hardman Ph.D.
The results of animal studies have demonstrated that the consumption of omega-3 fatty acids can slow the growth of cancer xenografts, increase the efficacy of chemotherapy and reduce the side effects of the chemotherapy or of the cancer. Molecular mechanisms postulated to contribute to the multiple benefits of omega-3 fatty acids include 1) suppressing the expression of cyclooxygenase-2 in tumors, thus decreasing proliferation of cancer cells and reducing angiogenesis in the tumor; 2) decreasing the expression of AP-1 and ras, two oncogenes implicated in tumor promotion; 3) inducing differentiation of cancer cells; 4) suppressing nuclear factor--kB activation and bcl-2 expression, …
Three Percent Dietary Fish Oil Concentrate Increased Efficacy Of Doxorubicin Against Mda-Mb 231 Breast Cancer Xenografts, W. Hardman, C. Reddy Avula, Gabriel Fernandes, Ivan Cameron
Three Percent Dietary Fish Oil Concentrate Increased Efficacy Of Doxorubicin Against Mda-Mb 231 Breast Cancer Xenografts, W. Hardman, C. Reddy Avula, Gabriel Fernandes, Ivan Cameron
Elaine Hardman Ph.D.
Omega 3 polyunsaturated fatty acids (the type of fat found in fish oil) have been used to kill or slow the growth of cancer cells in culture and in animal models and to increase the effectiveness of cancer chemotherapeutic drugs. An AIN-76 diet containing 5% corn oil (CO) was modified to contain 3% w/w fish oil concentrate (FOC) and 2% CO to test whether a clinically applicable amount of FOC is beneficial during doxorubicin (DOX) treatment of cancer xenografts in mice. Compared with the diet containing 5% CO, consumption of FOC increased omega 3 polyunsaturated fatty acids and lipid peroxidation …
Dietary Fish Oil Sensitizes A549 Lung Xenografts To Doxorubicin Chemotherapy, W. Elaine Hardman, Mary Pat Moyer, Ivan L. Cameron
Dietary Fish Oil Sensitizes A549 Lung Xenografts To Doxorubicin Chemotherapy, W. Elaine Hardman, Mary Pat Moyer, Ivan L. Cameron
Elaine Hardman Ph.D.
A549 xenografts were allowed to grow in nude mice to about 5 mm in diameter, then diets were changed to modified AIN-76 diets containing 19% wt/wt. fish oil (FO) or 20% wt./wt. com oil (CO). Ten days later dietary ferric citrate (0.3% wt./dry wt.) was added and doxoribicin (DOX) treatment (3.6 mg/kg i.v. each of the 5 days for 18 days) commenced. Treatment with DOX halted the growth of tumors in the CO fed mice. However, in those mice, which consumed FO or FO with ferric citrate, treatment with DOX caused significant tumor regression.
Dietary Walnut Suppressed Mammary Gland Tumorigenesis In The C(3)1 Tag Mouse, W. Hardman
Dietary Walnut Suppressed Mammary Gland Tumorigenesis In The C(3)1 Tag Mouse, W. Hardman
Elaine Hardman Ph.D.
Walnuts contain multiple ingredients that, individually, have been shown to slow cancer growth, including omega-3 fatty acids, antioxidants, and phytosterols. In previous research, consumption of walnuts has slowed the growth of implanted breast cancers. We wanted to determine whether regular walnut consumption might reduce the risk for developing cancer. Homozygous male C(3)1 TAg mice were bred with female SV129 mice consuming either the control AIN-76 diet or the walnut-containing diet. At weaning, the female hemizygous pups were randomized to control or walnut-containing diets and followed for tumor development. Compared to a diet without walnuts, consumption of walnuts significantly reduced tumor …
Role Of Lipid Peroxidation And Antioxidant Enzymes In Omega 3 Fatty Acids Induced Suppression Of Breast Cancer Xenograft Growth In Mice, W. Elaine Hardman, Jesus Munoz Jr., Ivan L. Cameron
Role Of Lipid Peroxidation And Antioxidant Enzymes In Omega 3 Fatty Acids Induced Suppression Of Breast Cancer Xenograft Growth In Mice, W. Elaine Hardman, Jesus Munoz Jr., Ivan L. Cameron
Elaine Hardman Ph.D.
Background: Supplementing mice with high levels of dietary n-3 polyunsaturated fatty acids (PUFAs) increases the n-3 PUFAs in cell membranes, increases the susceptibility of the cells for lipid peroxidation (LPO) and decreases the growth rate of mammary and other tumors. However, the results of an earlier study indicated that a factor in addition to LPO was involved in the reduction in tumor growth in n-3 PUFAs fed mice. Athymic mice bearing MDA-MB-231 human breast carcinoma xenografts, were fed fish oil concentrate (FOC) or control diets, with and without supplemental Vitamin E (2000 IU /kg diet) and were sacrificed both before …
Consumption Of An Omega-3 Fatty Acids Product, Incell Aafa Tm , Reduced Side-Effects Of Cpt-11 (Irinotecan) In Mice, W. Hardman, M. Moyer, Ivan Cameron
Consumption Of An Omega-3 Fatty Acids Product, Incell Aafa Tm , Reduced Side-Effects Of Cpt-11 (Irinotecan) In Mice, W. Hardman, M. Moyer, Ivan Cameron
Elaine Hardman Ph.D.
INCELL AAFA™, an omega-3 polyunsaturated fatty acid product containing a high concentration of long chain fatty acids, was tested for its ability to ameliorate the harmful side effects of CPT-11 chemotherapy including: leukopenia, anaemia, asthenia, weight loss and liver involvement. Four groups of mice were fed an AIN-76 diet modified to contain: 10% w/w corn oil (CO), 0% AAFA™; 9% CO, 1% AAFA™; 8% CO, 2% AAFA™; or 7% CO, 3% AAFA™. After 2 weeks on the diets, half of the mice received CPT-11 chemotherapy (60 mg kg-1 q 4 days, i.v.) the rest of the mice received vehicle for …
Resveratrol Is Rapidly Metabolized In Athymic (Nu/Nu) Mice And Does Not Inhibit Human Melanoma Xenograft Tumor Growth, Richard Niles, Carla Cook, Gary Meadows, Ya-Min Fu, Jerry Mclaughlin, Gary Rankin
Resveratrol Is Rapidly Metabolized In Athymic (Nu/Nu) Mice And Does Not Inhibit Human Melanoma Xenograft Tumor Growth, Richard Niles, Carla Cook, Gary Meadows, Ya-Min Fu, Jerry Mclaughlin, Gary Rankin
Richard M Niles
Resveratrol has been shown to have anticarcinogenic activity. We previously found that resveratrol inhibited growth and induced apoptosis in 2 human melanoma cell lines. In this study we determined whether resveratrol would inhibit human melanoma xenograft growth. Athymic mice received control diets or diets containing 110 μmol/L or 263 μmol/L resveratrol, 2 wk prior to subcutaneous injection of the tumor cells. Tumor growth was measured during a 3-wk period. Metabolism of resveratrol was assayed by bolus gavage of 75 mg/kg resveratrol in tumor-bearing and nontumor-bearing mice. Pellets containing 10–100 mg resveratrol were implanted into the mice, next to newly palpated …