Biological Heart Valves. Biological Heart Valves are made of tissues and valves derived from animals or human donors. Their biggest advantage is that they do not cause blood clotting on their surface and truly replicate the form and function of the normal human valve.
The biggest difference between cured and uncured is the fact that the uncured uses natural curing agents, such as celery powder, which transforms into nitrite when it is processed. Thus, uncured products have labels with: âNo Nitrates or Nitrites added except those naturally in celery powder or juiceâ.
Unsecured Debt. Unsecured debt is any debt that is not tied to an asset. This most commonly means credit card debt, but can also refer to items like personal loans and medical debt. Unsecured debt typically creates less stress and fewer problems than secured debt.