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| Organic Germanium Common names include germanium-132 (Ge-132) and germanium sesquioxide(listed seperately).Small amounts of germanium are found in certain minerals and plant products, including: argyrodite germanite garlic ginseng aloe comfrey "At present, germanium is widely recognized as a vital trace element, which is particularly essential for the normal functioning of the immune system and plays a significant role in cancer prevention"(note this statement is not universally accepted) Organogermanium / Ge-132 / propagermanium — comprises synthetic carbon-containing germanium compounds based on carboxyethylgermanium or oxygermylpropionic-acid structures. Ge-132, formally poly-trans-[(2-carboxyethyl)germasesquioxane] and commonly called carboxyethylgermanium sesquioxide or bis(2-carboxyethylgermanium) sesquioxide, hydrolyzes in aqueous environments to 3-(trihydroxygermyl)propanoic acid. Propagermanium is the pharmaceutical 3-oxygermylpropionic acid polymer and is marketed in Japan as Serocion for selected HBe-antigen-positive chronic hepatitis B patients. Ge-132 and propagermanium are closely related organogermanium preparations but should not be assumed to be chemically, pharmaceutically or clinically interchangeable with every product marketed as “organic germanium.” Purified organogermanium has substantially lower experimental renal toxicity than germanium dioxide, but germanium is not an essential nutrient and product contamination with inorganic germanium remains an important safety concern. Primary mechanisms (ranked):
Bioavailability / PK relevance: Ge-132 and propagermanium produce measurable systemic germanium exposure after oral administration but have preparation-specific pharmacokinetics. After very large single Ge-132 doses in healthy volunteers, peak plasma germanium occurred within approximately 0.75–2 hours and the terminal half-life was approximately 5–6 hours, while less than 11% of the administered germanium was recovered in urine within 24 hours. Pharmaceutical propagermanium at a 15 mg single dose reached peak plasma concentration near 3 hours with a half-life near 2.4 hours; its structural unit was reportedly not metabolized, and urinary and fecal elimination were substantial. Because renal clearance contributes materially, exposure may increase with severe renal impairment. In-vitro vs systemic exposure relevance: Ge-132 is hydrolyzed in water and biological fluids, so experiments using Ge-132 or its hydrolysate must be interpreted according to the actual chemical species and concentration present. Antioxidant, sulfide-binding and cis-diol-complex experiments commonly use micromolar-to-millimolar concentrations that may exceed exposure from ordinary supplement use. The CCL2-related oncology rationale is not primarily based on direct tumor-cell cytotoxicity; it depends on modulation of monocytes, macrophages, myeloid-derived suppressor cells and the tumor microenvironment. Clinical evidence status: Preclinical for anticancer efficacy, with limited Phase I human oncology evidence. A perioperative dose-escalation study in 12 patients with primary breast cancer found propagermanium doses of 30–90 mg/day feasible without dose-limiting toxicity, but it was not designed to demonstrate reduced recurrence, metastasis or survival benefit. A single historical remission report involving oral germanium sesquioxide cannot establish causality. Propagermanium has prescription-drug status in Japan for improvement of viral markers in selected HBe-antigen-positive chronic hepatitis B, not for cancer. No validated randomized cancer trial supports Ge-132 or propagermanium as an anticancer treatment or adjunct. Organogermanium Mechanistic Profile
P: 0–30 min R: 30 min–3 hr G: >3 hr |
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| Oxidative phosphorylation (or phosphorylation) is the fourth and final step in cellular respiration. Alterations in phosphorylation pathways result in serious outcomes in cancer. Many signalling pathways including Tyrosine kinase, MAP kinase, Cadherin-catenin complex, Cyclin-dependent kinase etc. are major players of the cell cycle and deregulation in their phosphorylation-dephosphorylation cascade has been shown to be manifested in the form of various types of cancers. Many tumors exhibit a well-known metabolic shift known as the Warburg effect, where glycolysis is favored over OxPhos even in the presence of oxygen. However, this is not universal. Many cancers, including certain subpopulations like cancer stem cells, still rely on OXPHOS for energy production, biosynthesis, and survival. – In several cancers, especially during metastasis or in tumors with high metabolic plasticity, OxPhos can remain active or even be upregulated to meet energy demands. In some cancers, high OxPhos activity correlates with aggressive features, resistance to standard therapies, and poor outcomes, particularly when tumor cells exploit mitochondrial metabolism for survival and metastasis. – Conversely, low OxPhos activity can be associated with a reliance on glycolysis, which is also linked with rapid tumor growth and certain adverse prognostic features. Inhibiting oxidative phosphorylation is not a universal strategy against all cancers. Targeting OXPHOS can potentially disrupt the metabolic flexibility of cancer cells, leading to their death or making them more susceptible to other treatments. Since normal cells also rely on OXPHOS, inhibitors must be carefully targeted to avoid significant toxicity to healthy tissues. Not all tumors are the same. Some may be more glycolytic, while others depend more on mitochondrial metabolism. Therefore, metabolic profiling of tumors is crucial before adopting this strategy. Inhibiting OXPHOS is being explored in combination with other treatments (such as chemo- or immunotherapies) to improve efficacy and overcome resistance. In cancer cells, metabolic reprogramming is a hallmark where cells often rely on glycolysis (known as the Warburg effect); however, many cancer types also depend on OXPHOS for energy production and survival. Targeting OXPHOS(using inhibitor) to increase the production of reactive oxygen species (ROS) can selectively induce oxidative stress and cell death in cancer cells. -One side effect of increased OXPHOS is the production of reactive oxygen species (ROS). -Many cancer cells therefore simultaneously upregulate antioxidant systems to mitigate the damaging effects of elevated ROS. -Increase in oxidative phosphorylation can inhibit cancer growth. |
| 7124- | Ge-132, | Physiological Activity of Trace Element Germanium including Anticancer Properties |
| - | Review, | Var, | NA |
Query results interpretion may depend on "conditions" listed in the research papers. Such Conditions may include : -low or high Dose -format for product, such as nano of lipid formations -different cell line effects -synergies with other products -if effect was for normal or cancerous cells
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