TESTAGEN INJECTOR PEN 3ML

Testagen (Lys-Glu-Asp-Gly / KEDG): The Targeted Testicular Bioregulator for Male Reproductive Health, Endocrine Restoration, and Spermatogenic Support — Now Available in the UAE

Testagen is the name of a chemically synthesized, specifically acting bioregulator in the form of a tetrapeptide, whose amino acid composition corresponds to Lysine (Lys)-Glutamic Acid (Glu)-Aspartic Acid (Asp)-Glycine (Gly) (KEDG). As such, it represents one of several chemically synthesized compounds, developed by Prof. Dr. V.V. Khavinson and his colleagues at the St. Petersburg Institute of Bioregulation and Gerontology on the basis of an amino acid sequences analysis of biologically active peptides isolated from testicular tissue by means of the established cytogen method of Prof. Dr. V.V. Khavinson et al., which are designed for use as short-chained (2-4 amino acids) bioregulators. The tetrapeptide KEDG is characterized by its relatively high tissue specificity for the testis. Thus, this compound preferentially acts on Leydig and Sertoli cells in the testis. While Leydig cells are involved in the production of steroid hormones, Sertoli cells play a role in providing the necessary environment for the maturation of immature germ cells into mature spermatozoa.

In contrast to exogenously administered testosterone replacement therapies or anabolic drugs which may exert a negative feedback effect via the HPG-axis due to their ability to induce an increase in circulating levels of sex steroids, Testagen functions predominantly at the level of epigenetics. Here, it binds to chromatin within testicular cells thereby normalizing and/or reactivating the transcription of various steroidogenic genes, e.g. the gene encoding for Steroid Acute Regulatory Protein (StAR), cholesterol side chain cleavage enzyme (CYP11A1), cytochrome P450 17α-hydroxylase/17,20-desmolase (CYP17A1), etc. These genes encode enzymes required for the biosynthesis of endogenously produced testosterone. Furthermore, Testagen supports Sertoli cell function by increasing the expression of growth factors and structural proteins that are essential for efficient spermatogenesis.

Therefore, Testagen can be viewed as a versatile research tool for studying male reproductive aging, late onset hypogonadism (LOH), decrease in androgen production with increasing age, idiopathic male sterility and/or subfertility, post-cycle therapy (PCT) recovery, and methods to preserve natural testicular function during stressful conditions or toxic exposures. Preclinical studies have shown that Testagen has potential in countering epigenetically mediated silencing caused by oxidative stress, inflammatory responses, gonadotoxic insults associated with aging, etc. In addition to these effects, it promotes physiological restoration rather than merely overriding the body’s endogenous hormonal regulation.

The Testagen Injector Pen we offer as our premium product consists of 3 ml solution of >99% pure peptide, produced according to strict quality control standards. The injector pen design allows easy application of precise doses, increases the bioavailability compared to standard injectable solutions used in many preclinical applications and provides researchers with significant advantages when designing studies involving reproductive endocrinology and andrology. Additionally, the injector pen offers flexibility in terms of study duration; i.e. they allow researchers to conduct either shorter-term intense studies or long term-cyclic studies using stable peptide formulations.

1. Restoration of Leydig Cell Steroidogenic Capacity
Testagen regulates the expression of key steroidogenically active genes and proteins in Leydig cells; it promotes the conversion of cholesterol to pregnenolone and, thus, is a factor that enhances the biosynthesis of testosterone. Studies have demonstrated that when treated with the KEDG peptide, aged testicular models restored their testosterone production to control levels for young controls, which supports the endogenous production of androgens by the testes while preserving the integrity of the upstream hypothalamic-pituitary-gonadal (HPG) axis.

2. Comprehensive Support for Spermatogenesis and Sperm Quality
Testagen increases the amount of genes that are expressed by Sertoli cells to produce the necessary proteins to promote the maturation of developing germ cells (GDNF and SCF). Additionally, it has been demonstrated in pre-clinical animal models that testogen results in a significant increase in all aspects of sperm (count, motility, morphology, etc.).

3. Preservation and Support of the Hypothalamic-Pituitary-Gonadal (HPG) Axis
The epigenetic mechanism by which Testagen acts reduces typical negative feedback loops associated with exogenously administered androgens or gonadotropin administration. The treatment also preserves normal testicular responsiveness as well as GnRH, LH, and FSH signaling. This is a unique combination that can be beneficial in allowing researchers to assess methods for increasing endogenous androgen activity and testicular response to treatment without interruption from a negative feedback loop of natural production and/or the need for prolonged post-treatment intervention.

4. Reversal of Key Aspects of Age-Related Hypogonadism
Testagen inhibits epigenetic gene silencing as well as cellular senescence within the aging testis. The longitudinal evaluation of treated vs. untreated control animals suggests that those which received a regimen of the testicular bioregulator KEDG maintained healthy levels of androgens; they also had improved testicular histological integrity; and were able to reproduce for much longer than untreated aged controls. This has a significant amount of implications in terms of gerontology, andrology, and longevity-based treatments for late-onset hypogonadism.

5. Accelerated Recovery Following Gonadotoxic Exposure or Suppressive Cycles
Testogen has shown to have the potential for aiding in recovery from damage to both endocrine (Leydig cells) and spermatogenic (Sertoli/germ cell) components of the testes caused by chemotherapy, radiation, anabolic steroid use, or other forms of gonadotoxic injury. This is due to its ability to expedite recovery time back to pre-treatment levels of testosterone production and reproductive capability thus allowing restoration of homeostasis at a faster rate than typical recovery processes.

As such, this would be an ideal candidate for study as part of PCT research, as well as possible protective measures used in onco-fertility or toxicological studies.

6. Overall Testicular Tissue Homeostasis and Anti-Inflammatory Protection
Beyond testosterone production (steroidogenesis) and sperm production (spermatogenesis), Testagen also has a beneficial effect on the way testicular tissues respond to inflammation, oxidative stress and cell death. The overall effect is that it can improve how well mitochondria function within these types of cells. This improves how long testicular tissue will remain structurally intact under conditions of chronic metabolic or environmental stress, as does reducing the amount of apoptosis (cell death) within Leydig and Sertoli cells.

Why Choose Our Testagen Injector Pen?

Our Testagen comes directly from high quality manufacturers who specialize in peptide synthesis by Khavinson and undergo extensive third party testing for purity, potency, identity, sterility, and stability. Each lot that we have produced has been tested to ensure the highest standards required for reproducibility in sensitive areas of endocrine and reproductive research.

Our precise injector pen format allows for elimination of the hassle associated with reconstitution, as well as providing an accurate and consistent method of administering Testagen via subcutaneous injection; it also provides minimal waste and is highly stable when stored on a shelf. The injector pen format will be beneficial to all types of researchers (laboratory investigators) that require reliable and predictable delivery of Testagen over a long period of time (daily or cyclic).

Testagen represents the most recent developments in tissue specific bioregulatory science. As a result of its targeted epigenetic treatment of testicular function, Testagen offers researchers a very strong, yet non suppressive tool to study natural routes to male hormonal and reproductive health. Regardless if you are studying androgen replacement therapy, fertility enhancing mechanisms, dynamics of the hypothalamic-pituitary-gonadal (HPG) axis, endocrinology of the aging male, or recovery protocols after illness or injury; Testagen provides a researcher-friendly compound that aligns physiology and is supported by decades of innovation in Khavinson’s area of expertise.

Please always seek the advice of a licensed healthcare professional, or a research ethics committee/ Institutional Review Board prior to conducting any type of protocol using our products. These statements reflect information found within published scientific literature and are for informational and education use only. They should never be considered as a means to diagnosis, treat, cure, or prevent any type of disease.

Important Note: This product is intended strictly for research and laboratory use only. It is not for personal consumption, human or animal therapeutic use, or any clinical application. Please consult and fully comply with all local regulations in the UAE before purchasing or handling.