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Puslapis 1 nuo 39 rezultatus
Effect of germanium on 1,2-dimethylhydrazine-induced intestinal cancer in rats.
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Through recent research, the trace element, germanium, was found to have an anticancer effect. The purpose of this research was to determine the effect of germanium on 1,2-dimethylhydrazine-induced intestinal cancer in rats. Ninety-six 8-week-old Sprague-Dawley male rats were divided into 4 groups,
Synthesis and biological evaluation of Germanium(IV)-polyphenol complexes as potential anti-cancer agents.
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Germanium (Ge) is considered to play a key role in the pharmacological effects of some medicinal plants. Here, two new Ge(IV)-polyphenol complexes were synthesized and measured for their potential biological activities. The results indicated that these Ge(IV)-polyphenol complexes possessed great
A near-infrared responsive germanium complex of Ge/GeO2 for targeted tumor phototherapy.
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The development of photoactive nanomaterials with high biocompatibility for targeted tumor phototherapy is of great significance for antitumor applications; this study presents a novel phototherapeutic agent, the Ge/GeO2 complex, which shows broad photoabsorption in the near infrared (NIR) region.
[Antitumor mechanisms of carboxyethyl-germanium sesquioxide (Ge-132) in mice bearing Ehrlich ascites tumors].
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The administration of IFN-containing sera (Ge-sera) obtained from Ge-132-treated mice (Ge-mice) or the passive transfer of macrophages (M phi) to mice bearing ascites tumors resulted in the inhibition of tumor growth. The cooperative role of Ge-sera and Ge-M phi in the display of Ge-132-antitumor
[Ability of sera from mice treated with Ge-132, an organo-germanium compound, to inhibit experimental murine ascites tumors].
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Serum specimens from mice treated orally with Ge-132 (100 mg/kg) exhibited antitumor activity against Ehrlich (allogeneic) and RL 1 (syngeneic) ascites tumors in BALB/c mice. Sera obtained from mice 24 hours after Ge-132 administration displayed the highest antitumor effect and the antitumor
Ability of sera from mice treated with Ge-132, an organic germanium compound, to inhibit experimental murine ascites tumours.
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Sera from C57Bl/6 mice treated orally with Ge-132 exhibited antitumour activity against Ehrlich (allogeneic) and RL male 1 (syngeneic) ascites tumours in BALB/c mice. Sera obtained from mice 24 h after Ge-132 administration displayed the greatest antitumour effect and this was dose dependent. Sera
[The inhibition of the development of experimental tumors of the cervix uteri and vagina by using tinctures of the cultured-cell biomass of the ginseng root and its germanium-selective stocks].
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The anticarcinogenic effects of bioginseng and two germanium-selective drugs produced by cultivating cells of ginseng radix (Panax ginseng C. A. Mey) in a conventional medium or in media containing organogermanium compounds were studied. Squamous-cell carcinomas of the uterus cervix and vagina were
Facile synthesis of multifunctional germanium nanoparticles as a carrier of quercetin to achieve enhanced biological activity.
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A simple method for preparing quercetin surface-functionalized germanium nanoparticles (Qu-GeNPs) with enhanced antioxidant and anticancer activity is reported. Spherical germanium nanoparticles (GeNPs) were capped by quercetin (Qu) with a mean particle size of approximately 33 nm and were
Questionable methods of cancer management: hydrogen peroxide and other 'hyperoxygenation' therapies.
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"Hyperoxygenation" therapy--also called "oxymedicine," "bio-oxidative therapy," "oxidative therapy," and "oxidology"--is a method of cancer management based on the erroneous concept that cancer is caused by oxygen deficiency and can be cured by exposing cancer cells to more oxygen than they can
In vitro Cytotoxicity Effects of 197Au/PAMAMG4 and 198Au/PAMAMG4 Nanocomposites Against MCF7 and 4T1 Breast Cancer Cell Lines.
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Purpose: Study on gold based therapeutic agents for cancer cells deracination has become under scrutiny in recent years owing to effective treatments are not available for rapidly progressive cancers. The aim of present study was to examine efficiency of radioactive 198Au/PAMAMG4 and non-radioactive
Radionuclide concentration in tea, cabbage, orange, kiwi and soil and lifetime cancer risk due to gamma radioactivity in Rize, Turkey.
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BACKGROUND
In this study, the activity concentrations of (232) Th, (238) U, (40) K and (137) Cs were measured in tea, cabbage, orange, kiwi and soil samples collected from different stations using gamma spectrometry with a high-purity germanium detector.
RESULTS
The average activity concentrations
Germane facts about germanium sesquioxide: II. Scientific error and misrepresentation.
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The preceding paper reviewed the anticancer properties and safety of bis (2-carboxyethylgermanium) sesquioxide (CEGS). An examination of those data leads one to question why this information has not stimulated clinical trials in patients with cancer. The answer is discussed in this paper, which
Functional changes on ascending auditory pathway in rats caused by germanium dioxide exposure: an electrophysiological study.
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The semiconductor element, germanium (Ge), is essential for the manufacture of modern integrated circuits. Because of its anti-tumor and immunomodulative effects, Ge-containing compounds are also used as health-promoting ingredients in food. However, some histological studies have shown the toxic
Antitumor properties of organometallic metallocene complexes of tin and germanium.
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The antitumor activity of the four metallocene compounds decaphenylstannocene [eta 5-(C6H5)5C5]2Sn(II), decabenzylstannocene [eta 5-(C6H5CH2)5C5]2Sn(II), decaphenylgermanocene [eta 5-(C6H5)5C5]2Ge(II), and decabenzylgermanocene [eta 5-(C6H5CH2)5C5]2Ge(II), containing the main group IV elements tin
Germane facts about germanium sesquioxide: I. Chemistry and anticancer properties.
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This paper reviews the history, chemistry, safety, toxicity, and anticancer effects of the organogermanium compound bis (2-carboxyethylgermanium) sesquioxide (CEGS). A companion review follows, discussing the inaccuracies in the scientific record that have prematurely terminated research on clinical
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