Protective Effects of Nigella sativa on Metabolic Syndrome in Menopausal Women

BackgroundHashimoto’s thyroiditis is associated with serious alterations in serum lipids and glucose homeostasis. The aims of the current study were to evaluate the effect of powdered Nigella sativa on serum lipids, glucose homeostasis and anthropometric variables in patients with Hashimoto’s thyroiditis.MethodsForty patients with Hashimoto’s thyroiditis, aged between 22 and 50 years old, participated in the trial and were randomly allocated into two groups of intervention and control receiving powdered Nigella sativa or placebo daily for 8 weeks. Serum lipids, glucose homeostasis, and anthropometric variables were evaluated at baseline and after intervention.ResultsTreatment with Nigella sativa significantly reduced body weight and body mass index (BMI). Serum concentrations of low density lipoprotein cholesterol (LDL) and triglyceride (TG) also decreased in Nigella sativa-treated group after 8 weeks; while serum high density lipoprotein cholesterol (HDL) significantly increased after treatment with Nigella sativa (P < 0.05). None of these changes had been observed in placebo treated group. Serum Nesfatin-1 concentrations was in inverse relationship with serum triglyceride (TG) (r = − 0.31, P = 0.04).ConclusionsGiving attention to the potent beneficial effects of powdered black cumin seeds in improving serum lipid profile and anthropometric features in patients with Hashimoto’s thyroiditis, this medicinal plant could be considered as a beneficial herbal supplement alongside with the disease- specific medications including Levothyroxine in management of Hashimoto’s thyroiditis- related metabolic abnormalities.Trial registrationIranian registry of clinical trials (registration number IRCT2014090819082N2- Registered 2014-09-29).

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The effect of hydroalcoholic extract of Nigella Sativa seed on dehydroepiandrosterone-induced polycystic ovarian syndrome in rats: An experimental study

Khani¹,

Abdollahi²,

Khalaj³

et al. 2021

IJRM

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Background: Polycystic ovary syndrome (PCOS) is one of the most common endocrine disorders among women. Objective: The aim of this study was to investigate the therapeutic effect of hydroalcoholic extract of Nigella sativa (N. sativa) seed as a plant, the consumption of which has been recommended in Islam, on dehydroepiandrosterone (DHEA)-induced PCOS rats. Materials and Methods: This experimental study was carried out on 36 Wistar female rats (3 wk, 60 ± 10 gr). Then rats were divided into 6 groups (n = 6/each): control; PCOSinduced (DHEA 60 mg/kg/sc); PCOS + Metformine (30 mg/kg); and three experimental groups receiving DHEA + hydroalcoholic extract of N. sativa seeds in doses of 50, 100 and 200 mg/kg, respectively. Blood samples were taken for the evaluation of sexual hormones, oxidative stress, glucose, and insulin after 30 days of treatment. Ovarian tissue was used for histopathological study. Results: The serum levels of luteinizing hormone, testosterone, glucose, insulin resistance, malondialdehyde, and insulin (p ≤ 0.001) and estrogen increased while the levels of progesterone (p = 0.01) and antioxidant enzymes in the PCOS group decreased (p ≤ 0.001). Conclusion: The administration of the N. sativa extract to the PCOS rats resulted in remarkable changes in the serumic factors relative to the PCOS group. In addition, the extract improved the structure of the ovarian tissue in the PCOS rat. The histopathological results which are in accordance with biochemical findings imply that N. sativa seed could be useful in the treatment of PCOS, the higher doses of the extract being more effective. Key words: Nigella sativa seed, Oxidative stress, Insulin resistance, Polycystic ovary syndrome, Rat.

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Protective Effects of Nigella sativa on Metabolic Syndrome in Menopausal Women

Cited by 13 publications

References 22 publications

Ameliorative effects of Nigella sativa on dyslipidemia

Ameliorative effects of Nigella sativa on dyslipidemia

Powdered black cumin seeds strongly improves serum lipids, atherogenic index of plasma and modulates anthropometric features in patients with Hashimoto’s thyroiditis

The effect of hydroalcoholic extract of Nigella Sativa seed on dehydroepiandrosterone-induced polycystic ovarian syndrome in rats: An experimental study

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