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.
Red meat and pork can remain in the refrigerator up to 5 days and can be frozen for 4-12 months. Leftover cooked meat will last 3-4 days in the refrigerator and 2-6 months in the freezer. Ground meats (beef, veal, pork, or poultry) can be refrigerated for 1-2 days and frozen for 3-4 months.Lunchmeats and hot dogs will last two weeks in the refrigerator unopened and should be eaten within 3-5 days of opening (hot dogs can go a couple of days longer).aw poultry lasts just a day or two in the fridge (at a temperature of 40 degrees Fahrenheit or colder), but up to a year in the freezer. Cooked poultry can be refrigerated a few days longer and should be frozen no longer than 2-6 months.