Polish
Albanian
Arabic
Armenian
Azerbaijani
Belarusian
Bengali
Bosnian
Catalan
Czech
Danish
Deutsch
Dutch
English
Estonian
Finnish
Français
Greek
Haitian Creole
Hebrew
Hindi
Hungarian
Icelandic
Indonesian
Irish
Italian
Japanese
Korean
Latvian
Lithuanian
Macedonian
Mongolian
Norwegian
Persian
Polish
Portuguese
Romanian
Russian
Serbian
Slovak
Slovenian
Spanish
Swahili
Swedish
Turkish
Ukrainian
Vietnamese
Български
中文(简体)
中文(繁體)
Nutrition Research 2016-Oct

Plum polyphenols inhibit colorectal aberrant crypt foci formation in rats: potential role of the miR-143/protein kinase B/mammalian target of rapamycin axis.

Tylko zarejestrowani użytkownicy mogą tłumaczyć artykuły
Zaloguj się Zarejestruj się
Link zostanie zapisany w schowku
Nivedita Banerjee
Hyemee Kim
Stephen T Talcott
Nancy D Turner
David H Byrne
Susanne U Mertens-Talcott

Słowa kluczowe

Abstrakcyjny

The nutritional prevention of aberrant crypt foci by polyphenols may be a crucial step to dietary cancer prevention. The objective of this study was to determine the underlying mechanisms that contribute to the anti-inflammatory and antitumorigenic properties of plum (Prunus salicina L.) polyphenols, including chlorogenic acid and neochlorogenic acid, in azoxymethane (AOM)-treated rats. The hypothesis was that plum polyphenolics suppress AOM-induced aberrant crypt foci formation through alterations in the protein kinase B (AKT)/mammalian target of rapamycin (mTOR) pathway and relative micro-RNA expressions. Sprague-Dawley rats (n=10/group) received plum beverage (1346mg gallic acid equivalents/L) or a control beverage ad libitum for 10 weeks with subcutaneous injections of AOM (15mg/kg) at weeks 2 and 3. Results show that the consumption of the plum beverage decreased the number of dysplastic aberrant crypt foci by 48% (P<.05) and lowered proliferation of mucosal cells by 24% (P<.05). The plum beverage decreased the activity of glutathione peroxidase, superoxide dismutase, and catalase in mucosal scrapings, as well as the superoxide dismutase activity in serum. The results were accompanied by a down-regulation of proinflammatory enzymes nuclear factor κB, nitric oxide synthase, cyclooxygenase-2, and vascular cell adhesion molecule 1 messenger RNA. Plum inhibited the expression of AKT and mTOR messenger RNA, phosphorylated AKT, mTOR, and hypoxia-inducible factor-1α protein levels, and the ratio of the phosphorylated/total protein expression of mTOR. Also, the plum beverage increased the expression of miR-143, which is involved in the regulation of AKT. These results suggest that plum polyphenols may exhibit a chemopreventive potential against colon carcinogenesis by impacting the AKT/mTOR pathway and miR-143.

Dołącz do naszej strony
na Facebooku

Najbardziej kompletna baza danych ziół leczniczych poparta naukowo

  • Działa w 55 językach
  • Ziołowe leki poparte nauką
  • Rozpoznawanie ziół na podstawie obrazu
  • Interaktywna mapa GPS - oznacz zioła na miejscu (wkrótce)
  • Przeczytaj publikacje naukowe związane z Twoim wyszukiwaniem
  • Szukaj ziół leczniczych po ich działaniu
  • Uporządkuj swoje zainteresowania i bądź na bieżąco z nowościami, badaniami klinicznymi i patentami

Wpisz objaw lub chorobę i przeczytaj o ziołach, które mogą pomóc, wpisz zioło i zobacz choroby i objawy, na które są stosowane.
* Wszystkie informacje oparte są na opublikowanych badaniach naukowych

Google Play badgeApp Store badge