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Biochemical and cellular (liver and kidney) restorative properties of garlic (Allium sativum) aqueous extract in cow brain-induced hypercholesterolemic model Swiss albino mice

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Kundu S. K., Noor Ali Khan M. A. H., Das S. K.
European Journal of Clinical and Experimental Medicine
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2023
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issue 3
450-457
EN
Introduction and aim. Garlic is one of the most popular traditional medicinal herbs which has a number of desirable health benefits. The study was designed to depict the improvement of serum biochemical parameters as well as the histomorphological recovery potential of garlic aqueous extract in hypercholesterolemic mice. Material and methods. A total of thirty Swiss albino mice weighing 24±5g and aged 5 weeks were randomly divided into three groups. Group A: supplied standard mice pellet and water; Group B: standard mice pellet + hypercholesterolemic diet (cow brain: 2 g/kg b.w.t.); and Group C: standard mice pellet + hypercholesterolemic diet (cow brain: 2 g/kg b.w.t.) + garlic extract (25 ml/kg b.w.t.). After four weeks of experimental tenure, samples (blood, liver, and kidney) were collected from each group of mice for serum biochemical analysis and histomorphological study. Results. Compared with hypercholesterolemic mice, total cholesterol (TC), triglyceride (TG) concentration, and low-density lipoprotein (LDL) levels significantly decreased respectively by 7%, 20% and 48% along with high-density lipoprotein (HDL) levels significantly increased by 47% in garlic extract supplemented group. Based on the histological evaluation in the liver sample of group C, both portal and central veins were normal, and fat droplets were not found in the hepatocytes which were found in the liver of group B. On the other hand, unchanged renal cortex, glomerulus, Bowman’s space, and kidney tubules were seen in group C. Conclusion. Therefore, the above findings of the present research would assist to provide affirmation about the cholesterol-decreasing and cellular restoration potentiality of garlic aqueous extract.
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The effect of calorie restriction on the anthropometric parameters, HOMA-IR index, and lipid profile of female office workers with overweight and obesity: a preliminary study

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Sadowska-Krępa E., Gdańska A., Přidalová M., Rozpara M., Grabara M.
International Journal of Occupational Medicine and Environmental Health
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2022
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vol. 35
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issue 6
693-706
EN
Objectives This study evaluates the effect of a 3-month calorie restriction (CR) without snacking on the anthropometric parameters, Homeostatic Model Assesment of Insulin Resistance (HOMA-IR), and lipid profiles of female office workers with overweight or obesity, whose physical activity was limited during the COVID-19 pandemic lockdown. Material and Methods Forty-eight women aged 20–38 years (28.9±5.24) with low physical activity levels were divided into a non-snacking (NS) group (N = 21) and a snacking (S) group (N = 27) prior to the dietary intervention. Their daily energy intake during the intervention was lowered by 30% compared with the baseline level, and the proportion of polyunsaturated fatty acids and fiber in their diet was increased (to >30 g/day). The proportion of saturated fatty acids and simple carbohydrates was also reduced. The study participants were assessed at the baseline and post-intervention for anthropometric variables (body weight, body fat percentage BMI, waist circumference, hip circumference, waist-to-hip ratio) and the concentrations of insulin, total cholesterol (TC), triglycerides (TG), low-density lipoprotein cholesterol (LDL-C), and high-density lipoprotein cholesterol (HDL-C). Moreover, the values for HOMA-IR, the atherogenic index of plasma (AIP), and the ratios of TC/HDL-C, TG/HDL-C, and LDL-C/HDL-C were calculated. Results All anthropometric parameter values obtained post-intervention were lower than the baseline in both groups. The serum insulin concentration and HOMA-IR decreased respectively by an average of 6% and 25% in the NS group and 37% and 45% in the S group. The lipid profiles of all participants improved significantly, with the LDL-C concentration showing a more promising trend in the S group (decrease by 27%) than in the NS group (17%). Conclusions The study showed that CR improved the anthropometric parameters, HOMA-IR index, and lipid profiles of all participants.
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Effects of 2 physical exercise programs (circuit training and brisk walk) carried out during working hours on multidimensional components of workers’ health: a pilot study

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Saavedra J. M., Kristjánsdóttir H., Gunnarsson S. B., García-Hermoso A.
International Journal of Occupational Medicine and Environmental Health
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2021
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vol. 34
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issue 1
39-51
EN
ObjectivesThe objective of this study was to determine the effects of 2 physical exercise programs carried out during working hours in an office work environment on health-related parameters of employees.Material and MethodsThe participants included 47 healthy office worker volunteers (aged 45±11.95 years, 27% males) who formed 3 groups: circuit training (CT), brisk walk (BW), and control (C) groups. The interventions lasted 12 weeks with a weekly frequency of three 30-minute sessions in the middle of the workday. All employees were evaluated with a multicomponent battery test which included: anthropometric and body composition measurements, a cardiorespiratory fitness test, lipid profile, blood pressure, and mental health (depression, anxiety, and stress). Basic descriptive statistics were calculated. A repeated measures ANOVA was performed to summarize changes in the variables studied after the application of the physical exercise programs.ResultsGenerally, both exercise programs (CT and BW) maintained the body weight and body mass index while reducing body fat mass (a group × time interaction; 4.864 ≤ F ≤ 6.524, 0.001 ≤ p ≤ 0.015), although the CT intervention also showed relevant (inter-group) reductions in the waist-hip ratio (F = 11.311, p = 0.007) and increased skeletal muscle mass (F = 15.062, p = 0.003). Both exercise programs (CT and BW) improved the cardiorespiratory fitness test scores (a group × time interaction; F = 18.054, p < 0.001). There were no changes in the lipid profile or blood pressure after the interventions, but there was an improvement in mental health (4.760 ≤ F ≤ 8.087, 0.008 ≤ p ≤ 0.037).ConclusionsThe findings suggest that both types of programs could be implemented in the employees’ daily routine in order to improve their overall health. Nevertheless, studies with larger samples are necessary before the conclusions can be generalized.
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