HCG 12000iu

What is HCG (12000iu)?

HCG (12000iu) is a glycoprotein hormone that plays a critical role in reproductive physiology. It is composed of an alpha and a beta subunit, making it a heterodimeric protein. Unlike gonadotropin-releasing hormone (GnRH), HCG functions at the gonadal level, where it has been studied for its interaction with LHCGR on Leydig cells in the testes and theca/granulosa cells in the ovaries. Research investigates how this receptor interaction may activate steroidogenic pathways and influence sex hormone production in experimental models. Human Chorionic Gonadotropin (HCG) has been widely studied in laboratory models for its role in gonadal signaling and its influence on reproductive processes, including steroid hormone production.

What are the key features of HCG (12000iu)?

HCG (12000iu) is supplied as a lyophilized peptide for controlled laboratory research. The lyophilized format helps minimize degradation and facilitates reconstitution for experimental use. Key features of HCG (12000iu) include:

• Peptide class: Glycoprotein hormone with alpha and beta subunit structure
• CAS Number: 9002-61-3
• Nominal 12000 IU per vial for flexible experimental use
• Lyophilized format to minimize degradation and facilitate laboratory handling
• Purity: Typically ≥98%, verified by HPLC
• Analytical confirmation: Verified by mass spectrometry (MS)
• Research focus: Reproductive endocrinology and gonadotropin signaling
• For laboratory research use only

This format supports in vitro studies, cell-based assays, and controlled in vivo experimental models.

How is HCG (12000iu) synthesized?

HCG (12000iu) is synthesized using recombinant DNA technology, enabling the production of the intact heterodimeric hormone. Recombinant systems ensure proper glycosylation patterns, which are essential for biological activity. After production, HCG goes through purification using chromatographic techniques, such as high-performance liquid chromatography (HPLC), to achieve high purity levels. Analytical verification is performed using mass spectrometry (MS) to confirm molecular weight and structural integrity. Bioassays standardized to international reference preparations are used to verify IU potency. The final product is sterile-filtered and lyophilized to minimize degradation and facilitate laboratory handling.

What is HCG (12000iu) being studied for? What are its possible benefits?

HCG has been studied extensively for its role in regulating gonadal function and steroidogenesis. Researchers have examined its LH-like activity at gonadal receptors and its role in sex hormone synthesis in Leydig and ovarian cells. Research areas include:

• Dose-dependent Leydig cell stimulation and ovarian follicular responses
• Endocrine feedback loop modeling
• Steroidogenic pathway mapping in gonadal tissues
• Receptor desensitization and resensitization studies

In experimental contexts, HCG has been used to explore how gonadal signaling influences sex hormone production and reproductive function. These findings are experimental and do not suggest therapeutic outcomes.

How does HCG (12000iu) work in research studies?

In laboratory models, HCG interacts with LHCGR (luteinizing hormone/chorionic gonadotropin receptors) located on Leydig cells in the testes and theca/granulosa cells in the ovaries. This binding has been studied for its potential to activate intracellular signaling cascades associated with steroidogenic enzyme expression and sex hormone synthesis in experimental models. Researchers use HCG exposure to examine gonadal responses, including steroid hormone synthesis and gonadal cellular signaling. By adjusting dose and timing, investigators can evaluate dose-response relationships and receptor regulation. These studies help scientists understand gonadal signaling, reproductive endocrinology, and steroidogenesis in controlled research settings.

What dosing information exists for HCG (12000iu)?

Dosing information for HCG is primarily derived from preclinical studies and clinical research protocols. In rodent models, HCG has been administered intermittently at doses ranging from 10–50 IU/kg to evaluate gonadal responses. In continuous infusion models, HCG has been dosed between 1–10 µg/kg/hour to assess receptor desensitization and hormonal suppression. In vitro studies using cultured Leydig or ovarian cells typically use concentrations in the 1–100 nM range to assess intracellular signaling and hormone release. These dosing regimens are experimental and model-specific. No standardized human dosing guidelines exist for HCG (12000iu) as a laboratory reagent.

How should HCG (12000iu) be stored and handled?

To minimize degradation, HCG (12000iu) should be stored in its lyophilized form at –20 °C or lower. Cold storage preserves peptide structural integrity and reduces degradation. Protect the vial from light, heat, and moisture, which may affect peptide integrity. After reconstitution with a suitable sterile laboratory solvent, store solutions at 2–8 °C for short-term use in laboratory experiments. Researchers should prepare small aliquots to minimize repeated freeze-thaw cycles, as these cycles can compromise peptide structural integrity. Peptide integrity may vary depending on solvent choice and laboratory handling conditions.

Where can I read more research about HCG (12000iu)?

The following sources provide peer-reviewed information on HCG structure and research applications:

1. Casarini L, Lispi M, Longobardi S, et al. LH and hCG action on the same receptor results in quantitatively and qualitatively different intracellular signalling. PLoS One. 2012;7(10):e46682. doi:10.1371/journal.pone.0046682
2. Casarini L, Santi D, Brigante G, Simoni M. Two Hormones for One Receptor: Evolution, Biochemistry, Actions, and Pathophysiology of LH and hCG. Endocr Rev. 2018;39(5):549-592. doi: 10.1210/er.2018-00065. PMID: 29905829.
3. Moravek MB, Shang M, Menon B, Menon K. HCG-mediated activation of mTORC1 signaling plays a crucial role in steroidogenesis in human granulosa lutein cells. Endocrine. 2016;54(1):217-224. doi:10.1007/s12020-016-1065-8
4. Movsas TZ, Weiner RL, Greenberg MB, Holtzman DM, Galindo R. Pretreatment with Human Chorionic Gonadotropin Protects the Neonatal Brain against the Effects of Hypoxic-Ischemic Injury. Frontiers in Pediatrics. 2017;5:232. doi:10.3389/fped.2017.00232.
5. Karaman IM, Kaya C, Ozturk M, Pirincci N, Yimazgumrukcu G, Tuken M. The effects of human chorionic gonadotrophin on normal testicular tissue of rats: dose‐dependence and reversibility. British Journal of Urology. 2006;97(5):1116-1118. doi:10.1111/j.1464-4

Compliance Statement

This product is intended for laboratory research use only and is not approved for human or veterinary use.