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2019 | 78 | 4 |

Tytuł artykułu

The possible protective effects of virgin olive oil and Nigella sativa seeds on the biochemical and histopathological changes in pancreas of hyperlipidaemic rats

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
Background: Hyperlipidaemia is a risk factor for the development and progression of atherosclerosis and is linked to various diseases. This study was done to evaluate the possible protective effects of virgin olive oil and Nigella sativa seeds on the biochemical and histopathological changes which occurred in the pancreas of the rats. The study lasted 8 weeks and included 24 albino rats that were divided into four groups (6 rats each); Group I — control group, fed with normal standard diet, Group II — fed with high fat diet (HFD), Group III — fed with HFD and virgin olive oil, Group IV — fed with HFD and Nigella sativa seeds powder. Materials and methods: After finishing the experiment, blood samples were collected and assessed for the lipid profile, fasting blood glucose, pancreatic amylase and insulin levels. Then, the rats were sacrificed and the pancreata were extracted and slices of them were processed for histological examination using haematoxylin stain and Masson’s trichrome stain. Small fragments from the tail of the pancreata were extracted and processed for electron microscopic examination. The statistical analysis of the data using the appropriate statistical tests was also conducted. Results: In the present study, the serum lipid profile in hyperlipidaemic rats was ameliorated in rats fed on high fat diet with virgin olive oil or Nigella sativa seed powder, which was reflected by a significant decrease in total cholesterol, low-density lipoprotein-cholesterol and triglycerides. Moreover, Nigella sativa decreased high-density lipoprotein (HDL), while virgin olive oil significantly increased HDL. Also a significant decrease in the serum levels of blood glucose and amylase and a significant increase in insulin levels were present in these groups. The histological and ultrastructural results revealed regeneration of the exocrine and endocrine parts of the pancreatic tissues from the hyperlipidaemic rats fed with virgin olive oil or Nigella sativa seeds. Conclusions: In this study, the biochemical results were paralleled to the histological and ultrastructural results; therefore, it could be concluded that virgin olive oil and Nigella sativa seeds had antihyperlipidaemic and hypoglycaemic effects and they could protect the pancreas from hyperlipidaemia-induced injury. Daily consumption of virgin olive oil and Nigella sativa seeds in the diet is highly recommended. (Folia Morphol 2019; 78, 4: 762–772)

Słowa kluczowe

Wydawca

-

Czasopismo

Rocznik

Tom

78

Numer

4

Opis fizyczny

p.762-772,fig.,ref.

Twórcy

  • Anatomy Department, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
  • Anatomy Department, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
autor
  • Anatomy Department, Faculty of Medicine, Al-Azhar University, Cairo, Egypt

Bibliografia

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Typ dokumentu

Bibliografia

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Identyfikator YADDA

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