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Regular consumption of “Nkui”, a Cameroonian traditional dish, may protect against cardiovascular and bone disorders in an estrogen deficiency condition

  • Edwige Nana Tchoupang , Sylvin Benjamin Ateba , Marie Alfrede Mvondo , Derek Tantoh Ndinteh , Télesphore Benoit Nguelefack , Stéphane Zingue , Liselotte Krenn and Dieudonné Njamen EMAIL logo
Published/Copyright: April 5, 2021

Abstract

Objectives

There is a growing body of evidence indicating the potential of culinary herbs and spices to decrease the incidence of several chronic diseases or conditions. Because of this, the WHO recommends their regular consumption. In the Cameroonian culinary practices, “Nkui” is a famous dish made from a mixture of 10 spices. In our previous study, the ethanolic extract of this mixture exhibited promising estrogenic properties. Thus, this study aimed to evaluate its protective effects on some menopause-related cardiovascular and bone disorders.

Methods

For this purpose, a post-menopause-like model (ovariectomized rats) has been used. Animals were orally treated with the “Nkui” extract for 60 days. The investigation focused on the oxidative stress status, endothelial function (NO bioavailability), lipid profile, and bone mass, biochemical (calcium and inorganic phosphorus contents, serum alkaline phosphatase activity) and histomorphological features.

Results

The extract regulated lipid metabolism in a way to prevent accumulation of abdominal fat, gain in body weight and increased atherogenic indexes induced by ovariectomy. It prevented menopause-related low levels of nitric oxide and oxidative stress damage by increasing superoxide dismutase and catalase activities, while reducing glutathione and malondialdehyde levels in the heart and aorta. Moreover, it prevented ovariectomy-induced bone mass loss, bone marrow disparities and the disorganization of the trabecular network. It also increased femur calcium and inorganic phosphorus contents.

Conclusions

These results suggest that a regular consumption of “Nkui” may have health benefits on cardiovascular system and osteoporosis, major health issues associated with menopause.


Corresponding author: Dieudonné Njamen, Department of Chemical Sciences, Faculty of Science, University of Johannesburg, Johannesburg, South Africa; and Laboratory of Animal Physiology, Department of Animal Biology and Physiology, Faculty of Science, University of Yaounde I, Yaounde, Cameroon. Phone: +237 679 424 710, E-mail:

Acknowledgments

The authors are grateful for the support of the Alexander von Humboldt Foundation and appreciate the assistance provided by Prof. Pierre Watcho and Mr. Christian Fofie (Department of Animal Biology, University of Dschang, Cameroon) during assessment of antioxidant activity.

  1. Research funding: None declared.

  2. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  3. Competing interests: No funding organizations played a role in the study design; in the collection, analysis, and interpretation of data; in the writing of the report; or in the decision to submit the report for publication.

  4. Ethical statement: The experiment was conducted following the procedures recommended by the 12 European Union on the protection of animals used for scientific purposes (CEE Council 1386/609; Reg. number FWA-IRD 0001954), adopted by the Cameroon Institutional National 14 Ethics Committee.

  5. Availability of data and materials: The data and materials used in this study are available upon request from the authors. Please contact Prof. Dr. Stephane Zingue ().

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Received: 2020-07-21
Accepted: 2020-10-12
Published Online: 2021-04-05

© 2021 Walter de Gruyter GmbH, Berlin/Boston

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