After Jannik Sinner's news of anti-doping test, British tennis player Tara Moore is also making news. The 32-year-old was Britain's top ranked women's doubles player when she was provisionally banned in May 2022. Again, she has been banned for four years for a doping offence, though she had been cleared for the same by an independent tribunal just 18 months ago. She was tested positive for nandrolone and boldenone at a tournament in the Colombian capital Bogota the previous month.The reason Moore provided was due to the ingestion of contaminated meat. While in December 2023, an independent tribunal ruled that contaminated meat was the reason that the test came positive and Moore "bore no fault or negligence"; the International Tennis Integrity Agency (ITIA) thinks otherwise.Also Read: Shubhanshu Shukla Returns From ISS, What All Medical Examinations Are Lined Up ITIA has been upheld by the Court of Arbitration for Sport (Cas). In the March hearing, Cas said in a media release: "After reviewing the scientific and legal evidence, the majority of the Cas panel considered that the player did not succeed in proving that the concentration of nandrolone in her sample was consistent with the ingestion of contaminated meat."This means Moore will not be free to play again until the start of 2028 season. "The panel concluded that Ms Moore failed to establish that the ADRV (Anti-Doping Rule Violation) was not intentional. The appeal by the ITIA is therefore upheld and the decision rendered by the Independent Tribunal is set aside."The ITIA chief executive Karen Moorhouse told BBC,"For the ITIA, every case is considered according to the individual facts and circumstances. In this case, our independent scientific advice was that the player did not adequately explain the high level of nandrolone present in their sample. Today's ruling is consistent with this position."What Do Nandrolone Decanoate And Boldenone Do To You?Nandrolone Decanoate: As per a 2020 study published in journal Medicina, nandrolone decanoate is an androgen, which means it plays a significant role in the development of male reproductive organs. The study notes: "The clinical use of synthetic testosterone derivatives, such as nandrolone, is focused on maximizing the anabolic effects and minimizing the androgenic ones." The study also mentions that apart from its clinical use, skeletal muscles can be considered as the primary target tissue. "Nowadays, especially athletes in power sports such as bodybuilding and weightlifting administer illegally high doses of Anabolic Androgenic Steroids (AAS) to increase their muscle mass and improve their overall performance," notes the study. Nandrolone Decanoate injections have been classified under the Anabolic Steroids Control Act of 1990 and due to its serious health risks, it is banned by most sports organization and is also listed in the prohibition list by the World Anti-Doping Agency (WADA). Side Effects Include:InfertilityLiver ToxicityImpaired Lipid ProfileHigh Blood PressureAcneHair LossGynecomastiaBoldenone: As per a 2016 study published in the Journal of Food and Drug Analysis, this AAS can be used in repairing wasting of the body caused by some emaciating disease. It can also be used for human sports for better performance and promoting the growth of skeletal muscle. However, this is also used for increasing the body weight in livestock as growth-promoting agents. This is also one of the matters the study looks into, in order to "evaluate the safety and meat quality criteria in broilers following intramuscular injection of boldenone." This is the reason Moore too used in her defense, that the result of her positive test was contaminated meat. The US Anti-Doping Agency (USADA) notes that there is no therapeutic or medical use for boldenone in humans. More specifically, it is not approved by the Food and Drug Administration (FDA) for use in humans for any reason. It also notes that WADA has included boldenone in its prohibited list. Since it could occur naturally at very low concentrations in the urine, WADA-accredited laboratories apply a specific analysis procedure called carbon isotope ratio mass spectrometry, or GC/C/IRMS, to differentiate between external administration and internal production.What are the side effects? USADA notes that in men, boldenone causes decreased testosterone production and impacts the reproductive system and fertility of males. It also impacts the size of the testes, lower sperm count, and sperm mobility.