The aim of the present study was to elucidate the possible biochemical improving
effect in lipid metabolic profile and organ function profiles that may result from continuous
treatment with iced Camellia sinensis extract (Black tea) in normal albino
rats and those rendered hyperlipidemic by long term supplementation of fat-enriched
diet. Albino rats of both sexes were used and grouped into seven groups; each
consists of ten animals with different treatments. Blood samples were taken for biochemical
analysis on days 30, 45 and 60 of the experiment. Iced black tea significantly
decreased the elevated serum lipid parameters including total lipid, triglycerides,
cholesterol, LDL-C, VLDL-C concentrations of rats fed on fat-enriched diet.
However, it insignificantly affected their values in serum of negative control rats.
In addition, iced black tea significantly increased the serum HDL-C concentration
of rats fed on fat-enriched diet with insignificant changes in their values in serum of
negative control rats. Administration of iced black tea to normal rats caused insignificant
changes in serum liver enzymes concentration all over the period of the
experiment; yet, it significantly decreased their elevated serum concentration in
animals fed on fat-enriched diet compared to the +ve untreated ones, upon its administration
starting from the day 30th of the experiment. These data suggest that iced
Camellia sinensis extract has a good health impact in cases associated with hyperlipidemia. |
