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Influence of supplementation with iron and probiotic bacteria Lactobacillus plantarum and Lactobacillus curvatus on selected parameters of inflammatory state in rats on a high-fat iron-deficient diet
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.
Badanie wpływu Lactobacillus plantarum ATCC14917 na gospodarkę żelaza u szczurów na diecie wysokotłuszczowej
Do probiotics and iron supplementation have any impact on element distribution in rat kidneys? – bioimaging by laser ablation inductively coupled plasma mass spectrometry
Impact of Dietary Salicylates on Iron, Zinc, and Copper Status in Preeclampsia Model Rats Induced by L-NAME
Abstract Low-dose aspirin prophylaxis is recommended for women at high risk of preeclampsia. It has been suggested that dietary salicylates may have a similar effect. Despite the known anti-inflammatory properties of salicylates, their influence on trace elements in preeclampsia remains unclear. This research investigated the effect of dietary salicylates and aspirin on iron, zinc, and copper status in rats with NG-nitro-L-arginine methyl ester (L-NAME)–induced preeclampsia. The study involved pregnant Sprague Dawley rats divided into six groups: control group (CH), preeclamptic rats (CP), preeclamptic rats with a low dose of dietary salicylate (LSP), preeclamptic rats with a high dose of dietary salicylate, preeclamptic rats with a low dose of aspirin (LAP), and preeclamptic rats with a high dose of aspirin. The content of trace elements in diets, liver, kidney, heart, spleen, pancreas, femur, brain, and hair was measured using flame atomic absorption spectrometry. Salicylate concentrations in diets, serum, and urine were analyzed using HPLC and UHPLC-MS/MS systems. Administration of L-NAME resulted in elevated blood pressure across groups, and only the LAP group had blood pressure levels comparable to the CH group. Preeclampsia significantly decreased serum hepcidin levels, while salicylates abolished this effect. Salicylate administration significantly decreased iron levels in hair and increased maternal zinc concentrations in the brain. Dietary salicylates markedly increased zinc levels in the placenta. In conclusion, L-NAME–induced preeclampsia decreases maternal serum hepcidin. Treatment with salicylates modulates iron and zinc status in preeclamptic rats, with specific effects on hepcidin levels.
Dietary salicylates affect calcium and magnesium status in preeclampsia model rats induced by NG-nitro-L-arginine-methyl ester (L-NAME)
Association between serum levels of calcium, magnesium, iron and copper and insulin resistance in women with full blown and not-full blown phenotypes of polycystic ovary syndrome
Influence of supplementation with probiotic bacteria Lactiplantibacillus plantarum and Latilactobacillus curvatus on selected parameters of duodenum iron metabolism in rats on a high-fat, iron-deficient diet
Effects of daily probiotic supplementation with Lactobacillus acidophilus on calcium status, bone metabolism biomarkers, and bone mineral density in postmenopausal women: a controlled and randomized clinical study
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.