Isotope-Labeled Steroid Conjugates

Taurodeoxycholic acid-d₄ is the deuterium labeled Taurodeoxycholic acid.

Glycolithocholic acid 3-sulfate-d₄ (sodium) is the deuterium labeled Glycolithocholic acid 3-sulfate.

Taurolithocholic acid-d₄ (sodium) is the deuterium labeled Taurolithocholic acid (sodium salt). Taurolithocholic acid sodium is an orally active bile acid and antiviral agent. Taurolithocholic acid sodium upregulates FADS2 by activating the TGR5-PI3K/AKT-SREBP2 signaling axis, inhibits SFTSV-induced ferroptosis, viral replication and viral entry of HBV/HDV, while reducing the release of IL-1β, lipid ROS and LDH. While exerting antiviral protective effects, Taurolithocholic acid sodium also stimulates the recycling of hepatocellular membrane transporters, impairs canalicular bile acid secretion function, and induces hepatocyte cholestasis, apoptosis and acute hepatocellular injury. Taurolithocholic acid sodium serves as an experimental model compound for hepatocellular cholestasis. At concentrations ≤200 μM, Taurolithocholic acid sodium shows no cytotoxicity and does not activate the interferon pathway. Taurolithocholic acid sodium not only protects mice from lethal SFTSV infection but also is suitable for studies related to severe fever with thrombocytopenia syndrome and cholestasis.

Tauroursodeoxycholate-d₅ is the deuterium labeled Tauroursodeoxycholate. Tauroursodeoxycholate (Tauroursodeoxycholic acid) is an endoplasmic reticulum (ER) stress inhibitor. Tauroursodeoxycholate significantly reduces expression of apoptosis molecules, such as caspase-3 and caspase-12. Tauroursodeoxycholate also inhibits ERK.

Estrone-3-glucuronide-d₄ lithium is the deuterium labeled Estrone-3-glucuronide lithium. Estrone 3-glucuronide is a dominant urinary metabolite of?Estradiol?(HY-B0141) and urinary marker for female fertile window prediction. Estrone 3-glucuronide can be used in combination with luteinizing hormone in ovulation prediction kits.

Estrone sulfate-d₄ TEA is the deuterium labeled Estrone sulfate TEA. Estrone sulfate is an inactive endogenous estrogen that can be converted into Estrone (HY-B0234) and Estradiol (HY-B0141). Estrone sulfate is also a substrate of the OATP1B3 transporter. Estrone sulfate can be converted into Estrone and Estradiol in normal mammary parenchymal cells. Estrone sulfate stimulates the growth of nitrosomethylurea-induced mammary tumors in ovariectomized rats and the colony formation of dispersed nitrosomethylurea mammary cells, with conversion into Estrone and Estradiol occurring both in vivo and in vitro during this process. Estrone sulfate is applicable to breast cancer-related research.

Tauroursodeoxycholate-d₄-1 is the deuterium labeled Tauroursodeoxycholate. Tauroursodeoxycholate (Tauroursodeoxycholic acid) is an endoplasmic reticulum (ER) stress inhibitor. Tauroursodeoxycholate significantly reduces expression of apoptosis molecules, such as caspase-3 and caspase-12. Tauroursodeoxycholate also inhibits ERK.

Estrone ?-D-Glucuronide-d₄ (lithium) is the deuterium labeled Estrone ?-D-Glucuronide.

Taurolithocholic acid-d₅ is deuterium labeled Taurolithocholic acid. Taurolithocholic acid is an orally active bile acid and antiviral agent. Taurolithocholic acid upregulates FADS2 by activating the TGR5-PI3K/AKT-SREBP2 signaling axis, inhibits SFTSV-induced ferroptosis, viral replication and viral entry of HBV/HDV, while reducing the release of IL-1β, lipid ROS and LDH. While exerting antiviral protective effects, Taurolithocholic acid also stimulates the recycling of hepatocellular membrane transporters, impairs canalicular bile acid secretion function, and induces hepatocyte cholestasis, apoptosis and acute hepatocellular injury. Taurolithocholic acid serves as an experimental model compound for hepatocellular cholestasis. At concentrations ≤200 μM, Taurolithocholic acid shows no cytotoxicity and does not activate the interferon pathway. Taurolithocholic acid not only protects mice from lethal SFTSV infection but also is suitable for studies related to severe fever with thrombocytopenia syndrome and cholestasis.

Taurohyocholic acid-d₄ (sodium) is the deuterium labeled Taurohyocholic acid sodium.

Taurodeoxycholic acid-d₄ (sodium) is the deuterium labeled Taurodeoxycholic acid.

Cholic acid 7-sulfate-d₄ (7-Sulfocholic acid-d₄) is the deuterium labeled Cholic acid 7-sulfate (HY-126855). Cholic acid 7-sulfate is a selective agonist targeting TGR5 (EC₅₀=0.17 μM) and a ligand for MHC class I-related protein (MR1). As a gut-restricted TGR5 agonist, cholic acid 7-sulfate binds to TGR5 on enteroendocrine L cells, induces GLP-1 secretion, and improves glucose tolerance in a TGR5-dependent manner. Cholic acid 7-sulfate also acts as an endogenous ligand for MR1, promoting the survival of mucosal-associated invariant T cells MAIT and the expression of homeostatic gene signatures, affecting MAIT cell development and function. Cholic acid 7-sulfate is mainly used in the research of diabetes and MAIT cell-related immune regulation.

Taurocholic acid-d₅ (Taurocholic Acid-d₅) is deuterium labeled Taurocholic acid. Taurocholic acid (N-Choloyltaurine) has marked bioactive effects such as an inhibitory potential against hepatic artery ligation induced biliary damage by upregulation of VEGF-A expression. Taurocholic acid has immunoregulation effect.

Glycodeoxycholic acid-d₅ is deuterium labeled Glycodeoxycholic Acid. Glycodeoxycholic Acid is a natural product found in Streptomyces nigricans, Trypanosoma brucei and C. elegans. Glycodeoxycholic Acid induces hepatocyte necrosis and autophagy in patients with obstructive cholestasis.

Taurohyodeoxycholic acid-d4 (sodium) is a deuterated labeled Taurohyodeoxycholic acid (sodium). Taurohyodeoxycholic acid (THDCA) sodium is the taurine-conjugated form of the secondary bile acid hyodeoxycholic acid. Taurohyodeoxycholic acid can also reduce the activity and expression of myeloperoxidase TNF-α and IL-6, as well as colonic damage in TNBS-induced ulcerative colitis mouse model.

Tauro-β-muricholic acid-d₄-1 (T-βMCA-d₄-1) sodium is the deuterium labeled Tauro-β-muricholic acid (HY-N9933).

Taurocholic acid 3-sulfate-d₄ (disodium) is the deuterium labeled Taurocholic acid 3-sulfate disodium.

Lithocholic acid 3-sulfate-d₄（sodium salt） is the deuterium labeled Lithocholic acid 3-sulfate.