A six-week diet high in fat, fructose and salt and its influence on lipid and mineral status, in rats

• Autorzy: Suliburska J.

Warianty tytułu

Wpływ sześciotygodniowej diety z dużą zawartością tłuszczu, fruktozy i soli na gospodarkę lipidową oraz mineralną u szczurów

• Języki publikacji: EN

Abstrakty

EN

Introduction. Fat, fructose, and salt consumption has increased in industrialized countries, but there are few studies that have investigated the effect of this eating pattern on metabolic and physiological States. The purpose of this study was thus to assess lipid and carbohydrate metabolism and to estimate iron, zinc, copper, calcium, and magnesium status in rats fed a diet high in fat, fructose, and salt, compared to the control diet. Material and methods. Wistar rats were assigned to groups fed either a standard diet or a diet high in fat, fructose, and salt (M). After 6 weeks, the animals were weighed and killed. Liver, kidney, heart, pancreas, hair, and blood samples were collected. The total cholesterol, triglyceride, fasting glucose, and insulin levels in serum were measured. The iron, zinc, copper, calcium, and magnesium concentrations in tissues and serum were determined. Results. It was found that the M diet led to a significant increase in cholesterol and triglyceride levels in the serum of rats. Among rats fed the M diet, a markedly higher serum level of iron and a significantly lower serum level of zinc were observed. A significantly lower iron level in the pancreas, zinc level in the kidneys and pancreas, and copper level in the kidneys it was found in rats with the M diet. The modified diet resulted in markedly lower concentrations of magnesium in the hearts. In the hair of rats on the M diet, higher levels of iron and zinc were observed. The relative masses of the kidneys were markedly higher in rats with the M diet, as compared with the C diet. Conclusions. Diets high in fat, fructose, and salt disturb lipid status and kidney mass. This modified diet impairs mineral balance in the body.

PL

Wstęp. Spożycie tłuszczu, fruktozy i soli wzrasta w krajach uprzemysłowionych. Jak dotąd jednak, w niewielu badaniach ocenia się wpływ tych nawyków żywieniowych na stan metaboliczny i fizjologiczny organizmu. Dlatego celem pracy była ocena metabolizmu lipidów i węglowodanów oraz określenie gospodarki żelaza, cynku, miedzi, wapnia i magnezu u szczurów karmionych dietą z dużą zawartością fruktozy, tłuszczu i soli w porównaniu ze szczurami na diecie standardowej. Materiał i metody. Szczury rasy Wistar podzielono na dwie grupy: pierwszą żywiono dietą standardową (C), drugą - dietą z dużą zawartością tłuszczu, fruktozy i soli (M). Po sześciu tygodniach doświadczenia zwierzęta były ważone i usypiane. Z ciała zwierząt pobrano wątrobę, nerki, serce, trzustkę, sierść oraz próbki krwi. W surowicy krwi oznaczono stężenie cholesterolu, triglicerydów, glukozy i insuliny. Zawartość żelaza, cynku, miedzi, wapnia i magnezu oznaczono w surowicy krwi oraz w tkankach. Wyniki. Stwierdzono, że dieta M spowodowała znaczący wzrost stężenia cholesterolu i triglicerydów w surowicy krwi szczurów. Ponadto u szczurów na diecie M obserwowano istotny wzrost stężenia żelaza i znaczące zmniejszenie stężenia cynku w surowicy. Wykazano znacząco mniejsze stężenie żelaza w trzustce, cynku - w nerkach i trzustce oraz miedzi - w nerkach szczurów na diecie M. Dieta modyfikowana wpłynęła na znaczące obniżenie magnezu w sercu szczurów. W sierści szczurów z dietą M zaobserwowano znacząco większe stężenie żelaza. Względna masa nerek szczurów na diecie M była znacząco większa aniżeli masa nerek szczurów na diecie C. Wnioski. Dieta z dużą zawartością tłuszczu, fruktozy i soli zaburza gospodarkę lipidową oraz względną masę nerek. Dieta modyfikowana prowadzi do zakłócenia równowagi składników mineralnych w organizmie.

• Wydawca: -
• Czasopismo: Acta Scientiarum Polonorum. Technologia Alimentaria
• Rocznik: 2013
• Tom: 12
• Numer: 2
• Opis fizyczny: p.195-202,ref.

Twórcy

autor

Suliburska J.

• Department of Hygiene and Human Nutrition, Poznan University of Life Sciences, Wojska Polskiego 31, 60-624 Poznan, Poland

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