Sports Illustrated writers Luis Fernando Llosa and L. Jon Wertheim dive into the brewing performance-enhancing drugs investigation with this piece that headlines promise to "rock sports." Certainly some of the names trickling out that are allegedly tied to the investigation have been well reported. Gary Matthews Jr., Jose Canseco, Evander Holyfield, etc., etc.

But one name that stood out in the Sports Illustrated story read:

David Bell, a veteran of a dozen major league seasons, received six packages of HCG at a Philadelphia address last April, when he played for the Phillies. The cost was $128.80, and the drug was prescribed in conjunction with an Arizona antiaging facility. Bell acknowledges receiving the shipment but tells SI the drug was prescribed to him "for a medical condition," which he declined to disclose, citing his right to privacy.

Bell had back trouble when he played for the Phillies. In fact, injuries kept him out of close to half of the games during the 2003 season, though he returned to play in 143, 150, and 145 games the next three seasons. Also, Bell and his wife Kristie had their first child during the off-season.

According to the Wikipedia entry on HCG (Human Chorionic Gonadotropin), it can be used medically and as a steroid:

hCG is extensively used as a parenteral medication in fertility therapy in lieu of luteinizing hormone. In the presence of one or more mature ovarian follicles, ovulation can be triggered by the administration of hCG. As ovulation will happen about 40-45 hours after the injection of hCG, procedures can be scheduled to take advantage of this time sequence. Thus, patients who undergo IVF, typically receive hCG to trigger the ovulation process, but have their eggs retrieved at about 36 hours after injection, a few hours before the eggs actually would be released from the ovary.

As hCG supports the corpus luteum, administration of hCG is used in certain circumstances to enhance the production of progesterone.

In the male, hCG injections are used to stimulate the leydig cells to synthesize testosterone. The intratesticular testosterone is necessary for spermatogenesis from the sertoli cells. Typical indications for hCG in men include hypogonadism and fertility treatment.

hCG sold under brand names including Pregnyl®, Follutein®, Profasi®, and Novarel® use chorionic gonadotropins derived from the urine of pregnant women, while Ovidrel® is a product of recombinant technology. Novarel® and hCG from APP are typically considered generics in the United States.

Use with anabolic steroids
In the world of performance enhancing drugs, hCG is increasingly used in combination with various Anabolic Androgenic Steroid (AAS) cycles.

When AAS are put into a male body, the body's natural negative feedback loops cause the body to shut down its own production of testosterone via shutdown of the HPTA (hypothalamic-pituitary-testicular axis). High levels of AASs that mimic the body's natural testosterone trigger the hypothalamus to shut down its production of gonadotropin-releasing hormone (GnRH) from the hypothalamus. Without GnRH the pituitary gland stops releasing luteinizing hormone (LH). LH normally travels from the pituitary via the blood stream to the testes where it triggers the production and release of testosterone. Without LH, the testes shut down their production of testosterone, causing testicular atrophy ("shrinking testicles").

In males, hCG mimics LH and helps restore / maintain testosterone production in the testes. As such, hCG is commonly used during and after steroid cycles to maintain and restore testicular size as well as endogenous testosterone production. However, if hCG is used for too long and in too high a dose, the resulting rise in natural testosterone will eventually inhibit its own production via negative feedback on the hypothalamus and pituitary.

David Bell remains unsigned for the 2007 season.

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