HGH
An under-specified HGH catalog placeholder. For research use only (RUO); not for human or veterinary use.
Out of stock
HGH Product Description
Only the abbreviation HGH is available for this catalog entry. It does not state a strength, physical unit, vial count, origin, isoform, formulation, or excipients. That absence is substantive: the nickname cannot establish that the item is somatropin, a 22 kDa recombinant protein, a pituitary-derived preparation, or any other defined molecular entity.
Human growth hormone literature typically concerns characterized proteins with stated production and analytical histories. Those publications are adjacent context only until this SKU is documented. This draft therefore preserves every uncertainty instead of inventing a strength, vial count, recombinant origin, sequence, or formulation.
The entry should function as a documentation-pending placeholder rather than a scientific product claim. Before use in a laboratory workflow, the catalog would need the exact material name, origin, isoform, concentration or content, physical format, formulation components, and lot-specific identity records. Only then could researchers determine whether a cited method or model concerns a comparable entity. Until that point, literature summaries must remain explicitly detached from the SKU. No certificate values are available in this draft, and no statement about purity, sterility, endotoxin, stability, or analytical performance is implied. The item is for research use only and is not for human or veterinary use. Qualified laboratories should base protocol decisions on their own requirements, the verified identity of the received material, and lot-specific records rather than on a retail family name. Catalog inclusion does not establish fitness for a particular method. Receiving records, chain of custody, reference standards, and acceptance criteria should be defined by the laboratory and documented independently for every lot and presentation.
Research Material Profile
HGH Research
What a defined recombinant preparation requires
PMID 23409149 describes production of recombinant human growth hormone in Escherichia coli and evaluation of the purified protein using chromatographic, mass-spectrometric, structural, and cell-assay methods. The source illustrates the level of definition that accompanies a characterized recombinant preparation: expression system, purification approach, molecular analysis, and model-specific testing are part of the record. None of those attributes is supplied for the item labeled only HGH. The paper therefore cannot establish that this SKU is recombinant, has the same sequence, shares the same molecular form, or meets any analytical specification. Its proper role is to demonstrate why a common abbreviation is insufficient for material identity. Product documentation would need to connect this listing to a defined protein before any comparison with the study reagent could be made. Across interpretations, the publication supports only its reported material and measurements; it does not supply lot-level identity, composition, or quality evidence for this catalog presentation. (PubMed 23409149).
Adjacent human physiology research
PMID 10913032 reports measurements of amino-acid transport and protein kinetics in a narrowly defined adult clinical cohort during research involving characterized recombinant human growth hormone. Those observations belong to the specific study material, population, protocol, and endpoints. They do not identify an item whose strength, origin, isoform, and formulation are absent. The citation must not be converted into a therapeutic, recovery, physique, or performance message, and it supplies no basis for instructions. In this catalog context, the study is included solely to show that rhGH literature is entity-specific and protocol-specific. Without documentation linking the SKU to the defined recombinant protein, the relationship remains unresolved. The paper also provides no evidence about this item’s quality, content, sterility, stability, or suitability for a laboratory method. Across interpretations, the publication supports only its reported material and measurements; it does not supply lot-level identity, composition, or quality evidence for this catalog presentation. (PubMed 10913032).
Why the placeholder remains unresolved
The two publications concern explicitly characterized recombinant human growth hormone, whereas the catalog provides only an abbreviation. That gap prevents responsible assignment of molecular mass, isoform, sequence, expression host, formulation, strength, or pack count. Even a future retail page with the same three-letter name would not be an exact comparator unless those material attributes align. A laboratory should not choose standards, assays, or controls on the assumption that all HGH-labeled items are equivalent. The correct status is documentation pending, with research citations treated as neighboring examples rather than evidence for the product. No source cited here verifies this SKU, and no lot-specific certificate has been supplied. Any stronger claim would exceed the available information and could misrepresent both the literature and the material. Across interpretations, the publication supports only its reported material and measurements; it does not supply lot-level identity, composition, or quality evidence for this catalog presentation. (PubMed 23409149 · PubMed 10913032).
Evidence Boundaries
The cited publications describe defined study materials in particular biochemical, cell, animal, or controlled human research settings. They do not authenticate this catalog item, transfer analytical specifications to it, or establish that a nominally similar retail product is equivalent. Model observations must remain attached to the reported species, preparation, protocol, and endpoints. Where the title leaves sequence, chemical form, processing state, physical unit, formulation, or pack details unresolved, this draft leaves them unresolved as well. No purity percentage, sterility status, endotoxin result, stability period, or content assay is inferred. Any stronger conclusion requires lot-specific documentation and, where relevant, direct testing of the exact formulation.
HGH References
8 curated medical and scientific references used for identity, mechanism, model, and assay context.
- Complete solubilization and purification of recombinant human growth hormone produced in Escherichia coli.
Kim MJ, Park HS, Seo KH, Yang HJ, Kim SK, Choi JH Complete solubilization and purification of recombinant human growth hormone produced in Escherichia coli. PLoS One. 2013;8(2):e56168. doi:10.1371/journal.pone.0056168. PMID:23409149.
Recombinant hGH production and characterization · E. coli expression, chromatographic purification, mass spectrometry, circular dichroism, and cell-proliferation assays.
View research source - Growth hormone decreases muscle glutamine production and stimulates protein synthesis in hypercatabolic patients.
Biolo G, Iscra F, Bosutti A, Toigo G, Ciocchi B, Geatti O, Gullo A, Guarnieri G Growth hormone decreases muscle glutamine production and stimulates protein synthesis in hypercatabolic patients. Am J Physiol Endocrinol Metab. 2000;279(2):E323-32. doi:10.1152/ajpendo.2000.279.2.e323. PMID:10913032.
Recombinant hGH and protein kinetics · Controlled clinical physiology study in hypercatabolic trauma patients.
View research source - Direct expression in Escherichia coli of a DNA sequence coding for human growth hormone.
Goeddel DV, Heyneker HL, Hozumi T, Arentzen R, Itakura K, Yansura DG, Ross MJ, Miozzari G, Crea R, Seeburg PH Direct expression in Escherichia coli of a DNA sequence coding for human growth hormone. Nature. 1979;281(5732):544-548. doi:10.1038/281544a0. PMID:386136.
Foundational recombinant hGH expression · Molecular cloning and direct expression of a human growth-hormone coding sequence in E. coli.
View research source - Clinical utility of a 22-kDa growth hormone-specific assay.
Vieira JG, Ando MH, Nishida SK, Macedo CD, Abucham JZ Clinical utility of a 22-kDa growth hormone-specific assay. Braz J Med Biol Res. 1992;25(3):243-245. PMID:1341920.
22-kDa growth-hormone-specific assay · Human serum immunoassay comparison and clinical analytical evaluation.
View research source - Somatogenic and lactogenic activity of the recombinant 22 kDa isoform of human placental growth hormone.
Igout A, Frankenne F, L'Hermite-Balériaux M, Martin A, Hennen G Somatogenic and lactogenic activity of the recombinant 22 kDa isoform of human placental growth hormone. Growth Regul. 1995;5(1):60-65. PMID:7749349.
Recombinant 22-kDa placental growth-hormone isoform · Receptor-activity assays comparing a defined recombinant placental GH isoform.
View research source - Periplasmic production via the pET expression system of soluble, bioactive human growth hormone.
Sockolosky JT, Szoka FC Periplasmic production via the pET expression system of soluble, bioactive human growth hormone. Protein Expr Purif. 2013;87(2):129-135. doi:10.1016/j.pep.2012.11.002. PMID:23168094.
Periplasmic production of bioactive hGH · E. coli expression, purification, and cell-based bioactivity assays.
View research source - Optimization of expression, purification and secretion of functional recombinant human growth hormone in Escherichia coli using modified staphylococcal protein a signal peptide.
Rigi G, Rostami A, Ghomi H, Ahmadian G, Mirbagheri VS, Jeiranikhameneh M, Vahed M, Rahimi S Optimization of expression, purification and secretion of functional recombinant human growth hormone in Escherichia coli using modified staphylococcal protein a signal peptide. BMC Biotechnol. 2021;21(1):51. doi:10.1186/s12896-021-00701-x. PMID:34399745.
Recombinant hGH expression and secretion optimization · E. coli engineering, purification, structural characterization, and bioactivity testing.
View research source - Simultaneous quantification of the 22-kDa isoforms of human growth hormone 1 and 2 in human plasma by multiplexed immunocapture and LC-MS/MS.
Sleumer B, van Faassen M, Vos MJ, den Besten G, Kema IP, van de Merbel NC Simultaneous quantification of the 22-kDa isoforms of human growth hormone 1 and 2 in human plasma by multiplexed immunocapture and LC-MS/MS. Clin Chim Acta. 2024;554:117736. doi:10.1016/j.cca.2023.117736. PMID:38142804.
LC-MS/MS measurement of 22-kDa GH1 and GH2 isoforms · Human plasma immunocapture and multiplexed LC-MS/MS assay development.
View research source