SpeX™ Gerbillinae Liver Microsomes to Advance In Vitro Drug Metabolism Research

thomas schmitt — Thu, 21 May 2026 08:48:49 +0000

The Gerbillinae subfamily is the second largest within the Muridae family, after the Murinae subfamily, comprising approximately 16 genera and over 100 species. The phylogenetic relationships among the major clades within the Gerbillinae remain unclear. One of the main issues concerns the phylogenetic position of the monotypic genus Ammodillus, which is endemic to the Horn of Africa. Based on morphological data, this genus may represent one of the earliest branches of the Gerbillinae main clade. However, due to a lack of genetic data, its precise taxonomic placement has not yet been determined.

The Gerbillinae subfamily includes gerbils and sand rats, both of which are adapted to arid and semi-arid environments. Species within this subfamily possess highly efficient water conservation capabilities, unique metabolic regulation mechanisms, and physiological adaptations. These characteristics distinguish them from commonly used laboratory rodents, such as mice and rats.

In drug research, species of the Gerbillinae subfamily play a vital role as valuable preclinical research models. Their unique cerebral vascular anatomy makes them particularly well-suited to studies of cerebral ischaemia, stroke, and neuroprotective therapies. Furthermore, Gerbillinae models are widely used in neuroscience, auditory research, epilepsy research and infectious disease research, as the progression of disease and pharmacological responses they exhibit often more closely mirror those observed in humans.

From a pharmacological perspective, species in the Gerbillinae subfamily have unique characteristics that influence drug efficacy, pharmacodynamics, and metabolism under various physiological conditions. Differences in their metabolic pathways and tissue sensitivity provide important insights into species-specific drug responses, helping to bridge the gap between traditional rodent models and human translational research. Consequently, Gerbillinae models are playing an increasingly important role in innovative drug discovery and translational research.

Drawing on years of expertise in the field of in vitro biological reagents, Creative Diagnostics has developed the SpeX™ Gerbillinae liver microsome model to support researchers' drug metabolism studies. The launch of the model enables scientists to utilize these unique metabolic characteristics within a controlled, high-throughput in vitro environment.

These new liver microsomes have been carefully developed to provide a reliable and translationally relevant in vitro model that supports research into cholesterol metabolism, diabetes, neuroprotection, epilepsy, and the development of anti-parasitic drugs. For more information about SpeX™ Gerbillinae Liver Microsomes or to explore the full range of ADME products and services, please visit https://qbd.creative-diagnostics.com/spex-gerbillinae-liver-microsomes.html.

High-Sensitivity ELISA Kits for Antibiotic Residue Detection in Biologics Manufacturing

thomas schmitt — Sat, 28 Feb 2026 03:03:35 +0000

Creative Diagnostics, a leading manufacturer and supplier of antibodies, antigens and assay kits, has announced the release of a specialized portfolio of Antibiotic Residue Detection ELISA Kits. These kits are developed to help biopharmaceutical manufacturers detect and quantify trace levels of antibiotics, such as Gentamicin, Kanamycin, and Neomycin, in biological products, including vaccines, recombinant proteins, and monoclonal antibodies.

Biological products are pharmaceuticals that are prepared through biotechnological processes using microorganisms, cells, animal tissues, and bodily fluids, which are used for the prevention, treatment, and diagnosis of human diseases. This category includes preventive products, (e.g., bacterial and viral vaccines), therapeutic products, (e.g., antitoxins, antisera, blood products, and biotechnology products), and diagnostic products, including in vivo and in vitro products.

Antibiotics are often added to cell culture media during biologics production to prevent microbial contamination. However, international regulatory standards, including the United States Pharmacopeia (USP) and the European Pharmacopoeia (EP), require the removal of these residues during purification to prevent adverse patient reactions, such as ototoxicity and severe allergic responses. These regulatory guidelines also require strict control over antibiotic use in biologics manufacturing and establish testing standards for residual levels.

"Our highly sensitive and reproducible (>80%) antibiotic detection ELISA kits can identify antibiotic residues in raw materials, intermediates, and final products of biologicals. They offer a high-throughput, cost-effective alternative to traditional LC-MS/MS methods," stated Dr. Jessica Waldorf, senior scientist of Creative Diagnostics. "Our ELISA kits empower manufacturers to ensure their biological products meet stringent safety and purity requirements while achieving reproducible test results."

For example, Creative Diagnostics offers a Chloramphenicol (CAP) ELISA Test Kit (DEIA6881), which is a competitive enzyme immunoassay for quantitatively analyzing chloramphenicol in fish, shrimp, eggs, honey, meat (beef, chicken and pork), milk, milk powder, condensed milk and serum.

The unique features of the kit are:

High recovery (80-115%), rapid extraction (10-40 minutes), and cost-effectiveness.
High sensitivity (0.05 ng/g or ppb) and a low detection limit (0.025 ng/g or ppb) for shrimp, fish and meat samples.
High reproducibility.
A quick ELISA assay (less than 1 hour, regardless of the number of samples).

Chloramphenicol is a broad-spectrum antibiotic widely used in animal production because of its exceptional antibacterial properties and pharmacokinetic characteristics. However, it induces hematotoxic side effects when used in humans, potentially leading to aplastic anemia and granulocytopenia. Consequently, it has been prohibited or restricted in the European Union and the United States. This kit is a novel product based on ELISA technology. Compared to conventional instrumental analysis, it offers rapid operation (less than one hour per test), simplicity, accuracy, and high sensitivity. These features significantly reduce operational error rates and alleviate workload intensity.

To learn more about the ELISA Kit portfolio, visit https://www.creative-diagnostics.com/antibiotic-residues-detection-elisa-kits-in-biological-products.htm.

About Creative Diagnostics

Creative Diagnostics is a leading manufacturer and supplier of antibodies, viral antigens, innovative diagnostic components, and critical assay reagents. In addition to providing contract R&D and biologic manufacturing services for diagnostic manufacturers along with GMP biologics manufacturing for the biopharmaceutical market, the company aims to continue to act as a trusted source for all researchers' assay development and manufacturing needs.

The Ops Community ⚙️: thomas schmitt

SpeX™ Gerbillinae Liver Microsomes to Advance In Vitro Drug Metabolism Research

High-Sensitivity ELISA Kits for Antibiotic Residue Detection in Biologics Manufacturing