The beneficial effects of rapamycin on lifespan, cancer and other diseases have largely been performed in models utilizing standard dietary conditions, i.e., normal, low fat rodent chow consisting of largely vegetable matter.
Ctr minipigs (n = 4) were fed a diet of regular chow, and HFC minipigs (n = 6) were fed an atherogenic diet of HFC chow consisting of 1.5% cholesterol, 15% shortening oil, 10% egg yolk powder, and 73.5% regular chow (diet compositions are described in Table 1).
Regular chow consisted of 16.0% fat, 63.0% carbohydrate and 20.0% protein (by calories), and 7.0% corn oil, 10.0% sucrose, 13.2% dextrose, 40.0% cornstarch, 5.0% cellulose and 20.0% casein (by weight).
Control chow consisted of the same matrix.
Chow consisted of a regular rodent chow (60% carbohydrate, 10% fat, 30% protein calories) and a high-fat diet (Dyets 112245: 26% carbohydrate, 59% fat, 15% protein calories; Dyets, Bethlehem, PA).
Shanghai noodles, a cold dish, was embraced by a zesty peanut sauce, and a dish called chow fun consisted of wide flat noodles jazzed up with spicy chile and basil, bean sprouts and chives.
Individually housed wild-type and GHS-R1A KO mice were put on a free choice ad libitum feeding paradigm, consisting of chow and peanut butter for 7 days.
As D1R KO mice show low body weight on standard diets and have a decreased interest in feeding (Drago et al., 1994), one possible explanation for their lack of FAA on a 60% CR diet consisting of standard chow (5001 rodent chow; LabDiet) is that it was insufficiently palatable to induce wakefulness that is a prerequisite for FAA.
In the case of mice arising from the R6/2×Hdac7+/− cross, all cages contained at least one mouse from each genotype and mice were additionally given mash consisting of powdered chow mixed with water from 12 weeks of age.
Then, we changed their diet to a daily scheduled 60% CR meal consisting of standard chow at ZT 9 on day 22.
Further, animals in the present study had a free access to feed consisting of standard chow mixed with chokeberry powder from whole, freeze-dried berries while above mentioned authors used chokeberry juice administrated by direct stomach intubation.
