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ascorbic acid/sarkom

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[Effect of ascorbic acid on the induction of uterine sarcomas in mice].

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Administration of ascorbic acid (0.3, 0.75 or 1.5%) in drinking water started after the treatment of female CBA mice with 1,2-dimethylhydrazine and estradiol-dipropionate inhibited the growth of uterine sarcomas. The inhibitory effect depended upon dosage to some extent. When administered together
The administration of estradiol propionate after the discontinuation of 1,2-dimethylhydrazine (DMH) treatment increased the incidence of uterine sarcoma in CBA mice from 32.5 (DMH alone) to 62.5%. The addition of the ascorbic acid (0.3% solution in drinking water) to estradiol propionate was

Preventive effect of vitamin C (L-ascorbic acid) on methylcholanthrene-induced soft tissue sarcomas in mice.

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The effect of vitamin C (L-ascorbic acid) on methylcholanthrene (MCA)-induced local malignant sarcomas in mice was investigated. Four groups of mice were given single intramuscular application of MCA at a dose level of 0.5 mg/0.1 ml olive oil for each animal. Doses of 6, 25, and 35 mg vitamin C
Especially in the public, vitamin C is considered supportive for the treatment of cancer and supplementation is common. However, the underlying mechanism that most chemotherapeutic agents, ionizing radiation, and photodynamic therapy exert on tumor cell kill is an increased production of reactive
To test the carcinostatic effects of ascorbic acid, we challenged the mice of seven experimental groups with 1.7 x 10(-4) mol high dose concentration ascorbic acid after intraperitoneal administrating them with sarcoma S-180 cells. The survival rate was increased by 20% in the group that received
The response of a patient with histologically proven reticulum cell sarcoma to no treatment other than large doses of ascorbic acid is described. At the time of first diagnosis, the disease was widely disseminated, and a very dramatic regression of all parameters of disease activity was induced by
In 1975, we reported the remarkable case of a 42-year-old man with histologically proven widely disseminated reticulum cell sarcoma who, in a remarkably short time, appeared to enjoy not one, but two, complete spontaneous regressions of his fatal illness. Both these regressions coincided exactly in

[The effect of L-ascorbic acid on Ehrlich ascites carcinoma and Yoshida sarcoma in vitro and in vivo].

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Antitumor effect of nutrient synergy on human osteosarcoma cells U-2OS, MNNG-HOS and Ewing's sarcoma SK-ES.1.

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Current treatment of osteosarcoma is associated with poor prognosis, especially due to the increased risk of developing other cancers with chemotherapy. Therefore, new, safe and effective treatment strategies are needed. We investigated the effect of a unique mixture of nutrients containing lysine,

Development of a papillary thyroid carcinoma in a patient while on high dosage ascorbic acid therapy.

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A case of reticulum cell sarcoma apparently successfully treated with mega ascorbic acid therapy is described briefly. While the patient continued a large maintenance dose of ascorbic acid, a papillary thyroid carcinoma developed clinically. The role of ascorbic acid in the body resistance to cancer
Omeprazole (OM), a prototype proton pump inhibitor, oxidizes thiol groups and induces DNA damage. The aim of this study was to evaluate the oxidative effects of omeprazole and its interactions with ascorbic acid (AA, 50 μM) and retinol palmitate (RP) in proficient and deficient Saccharomyces

Ascorbic acid enhances the cytotoxic effect of 6-hydroxydopamine for human neuroblastoma cell lines.

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Determination of LD50 values showed 3 human neuroblastoma cell lines to be 2-8-fold more sensitive to 6-hydroxydopamine (6-OHDA) than a mouse sarcoma cell line. Treatment of the cells with 6-OHDA and ascorbic acid decreased the cytotoxicity of 6-OHDA for the sarcoma cells and increased cytotoxicity

Effects of X‑ray irradiation in combination with ascorbic acid on tumor control.

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Our previous studies demonstrated that the combination of treatment with ascorbic acid (AsA) and X‑ray irradiation results in increased apoptosis in HL60 cells. The present study was performed to investigate the effects of the combined use of AsA and X‑ray irradiation on epithelial cancer and
Administration of estradiol-dipropionate (EP) after the cessation of 1,2-dimethylhydrazine (DMH) treatment increased the incidence of uterine sarcomas in CBA mice from 32.5 (DMH alone) to 62.5%. Ascorbic acid (AA) (0.3% in drinking water) given simultaneously with EP decreased the tumour incidence
The novel nitroxyl, Tempicol-3 (nitroxide-N-oxide) was synthesized and its capacity to act as a scavenger of hydroxyl radicals was tested. The concentration-dependent reducibility of this novel compound was also examined and compared with those of previously characterized nitroxides, Tempo and
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