Parathyroid hormone (PTH) function as immunologic mediator has become interesting with the recent usage of PTH analogue (teriparatide) in the management of osteoporosis. Since the early 1980s, PTH receptors were found on most immunologic cells (neutrophils, B and T cells).
But, the refrigerator will only keep food safely cold for about four hours if unopened during a power outage, according to the USDA. A full freezer will hold the temperature for about 48 hours if full (24 hours of half full), the USDA says. Generally, if the temperature in the thermometer in the freezer reads 40 degrees Fahrenheit or below, the food is safe and can be refrozen, according to the USDA.
  it all depends....if its on the fridge,you can keep it as long as the date on the bottom is and if its not in the fridge max. 4 days without it molding. Edit. Share to: Robin Harris. 521,978 Contributions. I have a passion for cooking and have spent many years mastering the art.ood left out of the refrigerator is okay to eat for about 2 hours. If the temperature is under 80 degrees. The longer a food stays in the danger zone the more risk you take e â¦ ating that food. Foods should either be kept hot or kept cold before eating to be really safe.