2024, Skrypnik, Katarzyna, Schmidt, Marcin, Olejnik-Schmidt, Agnieszka, Harahap, Iskandar Azmy, Suliburska, Joanna

AbstractBACKGROUNDA high‐fat (HF) diet, diet iron deficiency and iron supplementation may affect inflammatory parameters. Probiotics influence both iron metabolism and inflammation. We compared the inflammatory state in rats on a HF iron‐deficient diet receiving oral iron, Lactobacillus plantarum and Lactobacillus curvatus in different combinations.METHODSThis was a two‐stage experiment. In groups C (n = 8) and HF (n = 8), rats ate a control or HF diet, respectively, for 16 weeks. In the group HFDEF (n = 48), rats ate a HF iron‐deficient diet for 8 weeks (first stage) and were subsequently divided into 6 groups (n = 8 each) receiving the following for a further 8 weeks (second stage): HFDEF – a HF iron‐deficient diet; HFDEFFe – a HF iron‐deficient diet with iron; HFDEFLp and HFDEFLc – a HF iron‐deficient diet with L. plantarum or L. curvatus, respectively; and HFDEFFeLp and HFDEFFeLc – a HF iron‐deficient diet with iron and L. plantarum or L. curvatus, respectively. Body composition analysis and blood sampling was performed. Markers of iron status and levels of total antioxidant status (TAS), C‐reactive protein (CRP), tumour necrosis factor alpha (TNF‐α) and interleukin 6 (IL‐6) were measured in the blood.RESULTSTAS was higher in the HFDEF group (756.57 ± 489.53 ng mL−1) versus the HFDEFLc group (187.04 ± 47.84 ng mL−1; P = 0.022). No more differences were found between groups, or in TAS, CRP, TNF‐α and IL‐6 concentrations. Also, no differences were found between groups for alanine and aspartate aminotransferases, glucose, total cholesterol, low‐ and high‐density lipoproteins and triglycerides. TAS level was positively correlated with ferritin concentration, IL‐6 with TAS and TNF‐α with hepcidin level.CONCLUSIONSSupplementation with L. plantarum, L. curvatus and iron in combinations exerts no influence on inflammatory status, lipid profile, hepatic function and serum fasting glucose in rats on a HF iron‐deficient diet. © 2024 Society of Chemical Industry.

2024, Harahap, Iskandar Azmy, Moszak, Małgorzata, Człapka-Matyasik, Magdalena, Skrypnik, Katarzyna, Bogdański, Paweł, Suliburska, Joanna

BackgroundMenopause poses significant health risks for women, particularly an increased vulnerability to fractures associated with osteoporosis. Dietary interventions have emerged as promising strategies, focusing on mitigating the risk of osteoporosis rather than solely addressing the established disease. This 12-week randomized controlled trial aimed to analyze the effects of consuming Lactobacillus acidophilus probiotics on calcium levels, biomarkers of bone metabolism, and bone mineral density (BMD) profiles in postmenopausal women.MethodsFifty-five participants were randomly assigned to receive either a placebo (n = 25) or the probiotic L. acidophilus UALa-01™ (n = 30) daily via oral intervention. Throughout the study, evaluations included body composition, blood biochemical parameters, serum calcium levels, and biomarkers of bone metabolism. Additionally, Dual-energy X-ray absorptiometry was used to measure BMD profiles.ResultsThe findings delineated that the probiotic group experienced a decrease in serum calcium levels compared to their initial levels. However, hair calcium levels and biomarkers related to bone metabolism showed no notable changes within this group. Consumption of probiotic L. acidophilus also seemed to prevent fluctuations in bone turnover markers. Moreover, there were no significant alterations in BMD levels at the lumbar spine, left femur, and total body in the probiotic group. Additionally, probiotic intake led to favorable outcomes by significantly reducing both body fat and visceral fat during the intervention period. Conversely, an adverse effect of consuming probiotic L. acidophilus was observed with a significant increase in glucose concentration.ConclusionIn conclusion, the consumption of L. acidophilus probiotics daily for 12 weeks among postmenopausal women does not affect the profile of BMD, but it may help in stabilizing bone turnover. It is important to note that most measured parameters were within the normal range for this population. However, it is worth noting that 3 months of probiotic supplementation could potentially disrupt calcium and glucose status in postmenopausal women.