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L-Thyroxine is a synthetic form of thyroxine and a hormone replacement compound. L-Thyroxine (T4) and Triiodothyronine (T3) hormones are known to modulate the expression of ionic channels, pumps and regulatory contractile proteins. Moreover, thyroid hormones have been shown to influence calcium homeostasis and flux responsible for excitation and contractility, with L-Thyroxine and Triiodothyronine modulating its pharmacological control and secretion. In rats fed 12 weeks with the iodine-free diet, a significant decrease in the levels of both Triiodothyronine and L-Thyroxine is observed when compared to the control group fed with standard diet (p<0.001). In the group treated with low doses of L-Thyroxine, an increase in L-Thyroxine levels is observed (p=0.02) while Triiodothyronine levels remain virtually similar to the control group (p=0.19).
| Molecular Weight | 776.87 |
| Formula | C15H11I4NO4 |
| CAS Number | 51-48-9 |
| Solubility (25°C) | DMSO ≥ 100 mg/mL |
| Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
| Related Metabolite/Endogenous Metabolite Products |
|---|
| 2'-Deoxyinosine
2′-Deoxyinosine is a nucleoside composed of hypoxanthine attached to 2′-deoxyribose via a β-N9-glycosidic bond. It is a DNA damage product resulting from the impairment of DNA by reactive nitrogen species. 2′-deoxyinsine can be used as a model compound to study the chemistry of adduct formation and radical chemistry that may affect DNA structures. 2′-Deoxyinosine is used to produce hybridization-sensitive fluorescent DNA probes with self-avoidance ability. |
| Ribitol
Ribitol (Adonitol) is a crystalline pentose alcohol formed by the reduction of ribose. |
| Glycodeoxycholic Acid
Glycodeoxycholic Acid is an endogenous metabolite. Glycodeoxycholic Acid induces hepatocyte necrosis and autophagy in patients with obstructive cholestasis. |
| Glycolithocholic acid
Glycolithocholic acid, an endogenous metabolite, is a glycine conjugated secondary bile acid. Glycolithocholic acid can be used to study ulcerative colitis (UC), non-alcoholic steatohepatitis (NASH0) and primary sclerosing cholangitis (PSC). |
| 4-Aminohippuric Acid
4-Aminohippuric acid is a typical substrate of organic anion transport systems. 4-Aminohippuric acid is a diagnostic agent, useful in medical tests involving the kidney, used in the measurement of renal plasma flow. |
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