Browsing by Author "Arsić, Aleksandra (14031166400)"

The impact of chronic, intense exercise, such as in elite athletes, on phospholipids fatty acids (FA) composition has not been studied in women so far. This study aimed to investigate FA profiles in plasma and erythrocytes phospholipids in elite female water polo (N = 15) and football (N = 19) players in comparison with sedentary women. In spite of similar dietary patterns, as assessed by a food frequency questionnaire, plasma FA profile in the football players showed significantly higher proportions of stearic acid, oleic acid, and monounsaturated FA (MUFA), and significantly lower proportions of total and n-6 polyunsaturated FA (PUFA) than in the water polo and control group. The water polo players had higher percentages of palmitoleic acid and arachidonic acid than the control subjects. Erythrocyte FA profile differed among groups. We found significantly higher proportion of oleic acid and MUFA in the football group than in the controls, and decreased stearic acid and elevated palmitic and palmitoleic acid in the water polo players than in the other 2 groups. Both groups of athletes had significantly lower percentages of n-6 dihomo-g-linolenic acid, n-6 PUFA, and total PUFA compared with the controls. The estimated activities of elongase and desaturases in erythrocytes were also altered in the athletes. Our results indicate that long-term, intense physical training significantly affects FA status of plasma and erythrocyte phospholipids in women. The observed differences between the water polo and the football players suggest that the type of regular training may contribute to the altered metabolism of FA, although possible genetic differences among the 3 study groups cannot be ruled out.

The impact of chronic, intense exercise, such as in elite athletes, on phospholipids fatty acids (FA) composition has not been studied in women so far. This study aimed to investigate FA profiles in plasma and erythrocytes phospholipids in elite female water polo (N = 15) and football (N = 19) players in comparison with sedentary women. In spite of similar dietary patterns, as assessed by a food frequency questionnaire, plasma FA profile in the football players showed significantly higher proportions of stearic acid, oleic acid, and monounsaturated FA (MUFA), and significantly lower proportions of total and n-6 polyunsaturated FA (PUFA) than in the water polo and control group. The water polo players had higher percentages of palmitoleic acid and arachidonic acid than the control subjects. Erythrocyte FA profile differed among groups. We found significantly higher proportion of oleic acid and MUFA in the football group than in the controls, and decreased stearic acid and elevated palmitic and palmitoleic acid in the water polo players than in the other 2 groups. Both groups of athletes had significantly lower percentages of n-6 dihomo-g-linolenic acid, n-6 PUFA, and total PUFA compared with the controls. The estimated activities of elongase and desaturases in erythrocytes were also altered in the athletes. Our results indicate that long-term, intense physical training significantly affects FA status of plasma and erythrocyte phospholipids in women. The observed differences between the water polo and the football players suggest that the type of regular training may contribute to the altered metabolism of FA, although possible genetic differences among the 3 study groups cannot be ruled out.

Pomegranate peel contains high levels of various phytochemicals. We evaluated the effects of pomegranate peel extract (PoPEx) consumption on plasma lipid profile, fatty acids (FA) level and blood pressure (BP) in patients with diabetes mellitus type 2 (DMT2). Thirty-seven subjects were recruited in this double blind, placebo controlled randomized trial. The study group (n = 19) received over 8 week's capsules containing PoPEx twice a daily, while the placebo group received placebo. Treatment with PoPEx induced a significant lowering of both systolic and diastolic BP. The plasma levels of triglycerides, low-density lipoprotein cholesterol/high-density lipoprotein cholesterol ratio (LDL-C/HDL-C), and HbA1c were significantly decreased, while the level of HDL-C was significantly increased, compared with placebo intake. Moreover, the PoPEX treatment significantly improved the plasma lipids fatty acids content. It is concluded that consumption of PoPEx in DMT2 subject had favourable effects on some metabolic parameters, BP, lipid profile and plasma lipid FA composition. © 2019 Elsevier Ltd

Pomegranate peel contains high levels of various phytochemicals. We evaluated the effects of pomegranate peel extract (PoPEx) consumption on plasma lipid profile, fatty acids (FA) level and blood pressure (BP) in patients with diabetes mellitus type 2 (DMT2). Thirty-seven subjects were recruited in this double blind, placebo controlled randomized trial. The study group (n = 19) received over 8 week's capsules containing PoPEx twice a daily, while the placebo group received placebo. Treatment with PoPEx induced a significant lowering of both systolic and diastolic BP. The plasma levels of triglycerides, low-density lipoprotein cholesterol/high-density lipoprotein cholesterol ratio (LDL-C/HDL-C), and HbA1c were significantly decreased, while the level of HDL-C was significantly increased, compared with placebo intake. Moreover, the PoPEX treatment significantly improved the plasma lipids fatty acids content. It is concluded that consumption of PoPEx in DMT2 subject had favourable effects on some metabolic parameters, BP, lipid profile and plasma lipid FA composition. © 2019 Elsevier Ltd

Objective: Metabolic changes in type 1 diabetes mellitus (T1DM) impair vasodilation, and this leads to tissue hypoxia and microvascular pathology. Hyperbaric oxygen therapy (HBOT) can significantly improve the outcome of ischemic conditions in T1DM patients and reduce vascular complications. The aim of our study was to assess the effects of HBOT on plasma fatty acid (FA) composition, and expression of insulin-like growth factor binding protein 1 (IGFBP-1) in T1DM patients. Methods: Our study included 24 adult T1DM patients diagnosed with peripheral vascular complications. The patients were exposed to 10 sessions of 100% oxygen inhalation at 2.4 atmosphere absolute for 1 hour. Blood samples were collected at admission and after HBOT for measurement of metabolic parameters, FA composition and IGFBP-1. Measurement of plasma FA composition was determined by gas chromatography. Expression of IGFBP-1 in the serum was estimated by Western blot analysis. Results: HBOT decreased blood levels of total cholesterol (p<0.05), triglycerides (p<0.05) and low-density lipoprotein (p<0.05). HBOT increased plasma levels of individual FAs: palmitic acid (p<0.05), palmitoleic acid (p<0.05), docosapentaenoic acid (p<0.05) and docosahexaenoic acid (p<0.01), and decreased levels of stearic acid (p<0.05), alpha linolenic acid (p<0.05) and linoleic acid (p<0.01). Expression of IGFBP-1 (p<0.01) was increased, whereas the level of insulin (p<0.001) was decreased in the serum after HBOT. Conclusions: Our results indicate that HBOT exerts beneficial effects in T1DM patients by improving the lipid profile and altering FA composition. © 2019 Canadian Diabetes Association

Objective: Metabolic changes in type 1 diabetes mellitus (T1DM) impair vasodilation, and this leads to tissue hypoxia and microvascular pathology. Hyperbaric oxygen therapy (HBOT) can significantly improve the outcome of ischemic conditions in T1DM patients and reduce vascular complications. The aim of our study was to assess the effects of HBOT on plasma fatty acid (FA) composition, and expression of insulin-like growth factor binding protein 1 (IGFBP-1) in T1DM patients. Methods: Our study included 24 adult T1DM patients diagnosed with peripheral vascular complications. The patients were exposed to 10 sessions of 100% oxygen inhalation at 2.4 atmosphere absolute for 1 hour. Blood samples were collected at admission and after HBOT for measurement of metabolic parameters, FA composition and IGFBP-1. Measurement of plasma FA composition was determined by gas chromatography. Expression of IGFBP-1 in the serum was estimated by Western blot analysis. Results: HBOT decreased blood levels of total cholesterol (p<0.05), triglycerides (p<0.05) and low-density lipoprotein (p<0.05). HBOT increased plasma levels of individual FAs: palmitic acid (p<0.05), palmitoleic acid (p<0.05), docosapentaenoic acid (p<0.05) and docosahexaenoic acid (p<0.01), and decreased levels of stearic acid (p<0.05), alpha linolenic acid (p<0.05) and linoleic acid (p<0.01). Expression of IGFBP-1 (p<0.01) was increased, whereas the level of insulin (p<0.001) was decreased in the serum after HBOT. Conclusions: Our results indicate that HBOT exerts beneficial effects in T1DM patients by improving the lipid profile and altering FA composition. © 2019 Canadian Diabetes Association

Healthcare systems worldwide are seriously challenged by a rising prevalence of neurodegenerative diseases (NDDs), which mostly, but not exclusively, affect the ever-growing population of the elderly. The most known neurodegenerative diseases are Alzheimer's (AD) and Parkinson's disease, multiple sclerosis, and amyotrophic lateral sclerosis, but some viral infections of the brain and traumatic brain injury may also cause NDD. Typical for NDD are the malfunctioning of neurons and their irreversible loss, which often progress irreversibly to dementia and ultimately to death. Numerous factors are involved in the pathogenesis of NDD: genetic variability, epigenetic changes, extent of oxidative/nitrosative stress, mitochondrial dysfunction, and DNA damage. The complex interplay of all the above-mentioned factors may be a fingerprint of neurodegeneration, with different diseases being affected to different extents by particular factors. There is a voluminous body of evidence showing the benefits of regular exercise to brain health and cognitive functions. Moreover, the importance of a healthy diet, balanced in macro- and micro-nutrients, in preventing neurodegeneration and slowing down a progression to full-blown disease is evident. Individuals affected by NDD almost inevitably have low-grade inflammation and anomalies in lipid metabolism. Metabolic and lipid profiles in NDD can be improved by the Mediterranean diet. Many studies have associated the Mediterranean diet with a decreased risk of dementia and AD, but a cause-and-effect relationship has not been deduced. Studies with caloric restriction showed neuroprotective effects in animal models, but the results in humans are inconsistent. The pathologies of NDD are complex and there is a great inter-individual (epi)genetic variance within any population. Furthermore, the gut microbiome, being deeply involved in nutrient uptake and lipid metabolism, also represents a pillar of the gut microbiome–brain axis and is linked with the pathogenesis of NDD. Numerous studies on the role of different micronutrients (omega-3 fatty acids, bioactive polyphenols from fruit and medicinal plants) in the prevention, prediction, and treatment of NDD have been conducted, but we are still far away from a personalized diet plan for individual NDD patients. For this to be realized, large-scale cohorts that would include the precise monitoring of food intake, mapping of genetic variants, epigenetic data, microbiome studies, and metabolome, lipidome, and transcriptome data are needed. © Copyright © 2021 Milošević, Arsić, Cvetković and Vučić.

Healthcare systems worldwide are seriously challenged by a rising prevalence of neurodegenerative diseases (NDDs), which mostly, but not exclusively, affect the ever-growing population of the elderly. The most known neurodegenerative diseases are Alzheimer's (AD) and Parkinson's disease, multiple sclerosis, and amyotrophic lateral sclerosis, but some viral infections of the brain and traumatic brain injury may also cause NDD. Typical for NDD are the malfunctioning of neurons and their irreversible loss, which often progress irreversibly to dementia and ultimately to death. Numerous factors are involved in the pathogenesis of NDD: genetic variability, epigenetic changes, extent of oxidative/nitrosative stress, mitochondrial dysfunction, and DNA damage. The complex interplay of all the above-mentioned factors may be a fingerprint of neurodegeneration, with different diseases being affected to different extents by particular factors. There is a voluminous body of evidence showing the benefits of regular exercise to brain health and cognitive functions. Moreover, the importance of a healthy diet, balanced in macro- and micro-nutrients, in preventing neurodegeneration and slowing down a progression to full-blown disease is evident. Individuals affected by NDD almost inevitably have low-grade inflammation and anomalies in lipid metabolism. Metabolic and lipid profiles in NDD can be improved by the Mediterranean diet. Many studies have associated the Mediterranean diet with a decreased risk of dementia and AD, but a cause-and-effect relationship has not been deduced. Studies with caloric restriction showed neuroprotective effects in animal models, but the results in humans are inconsistent. The pathologies of NDD are complex and there is a great inter-individual (epi)genetic variance within any population. Furthermore, the gut microbiome, being deeply involved in nutrient uptake and lipid metabolism, also represents a pillar of the gut microbiome–brain axis and is linked with the pathogenesis of NDD. Numerous studies on the role of different micronutrients (omega-3 fatty acids, bioactive polyphenols from fruit and medicinal plants) in the prevention, prediction, and treatment of NDD have been conducted, but we are still far away from a personalized diet plan for individual NDD patients. For this to be realized, large-scale cohorts that would include the precise monitoring of food intake, mapping of genetic variants, epigenetic data, microbiome studies, and metabolome, lipidome, and transcriptome data are needed. © Copyright © 2021 Milošević, Arsić, Cvetković and Vučić.

Limited studies have been performed to associate abnormal phospholipid (PL) profile and disease activity in hematological malignancies, including non-Hodgkin lymphoma (NHL). The aim of his study was to evaluate the levels of plasma PL fractions in NHL patients, in response to chemotherapy. Forty non-treated patients with NHL and 25 healthy individuals were recruited. Blood samples from patients were taken before chemotherapy, after 3 cycles and after the end of the treatment, and PL fractions were resolved by one-dimensional thin-layer chromatography. To assess potential relationship between plasma PL profile and response to therapy, patients were divided according to clinical outcome in 3 groups: complete remission (CR), stable disease (SD) and progression (PG). Despite significant differences between NHL patients and healthy controls, no differences were found at baseline among patients divided according to clinical outcome. During and after chemotherapy important alterations in PL profile were observed. Levels of total PLs and all PL fractions decreased in patients with PG while in patients who responded to therapy (CR, SD) PLs significantly increased. Results of our study suggest that changes of total PLs and PL fractions during the therapy are associated with the effects of therapy and clinical outcome in patients with NHL. © 2017 Elsevier Ltd

Limited studies have been performed to associate abnormal phospholipid (PL) profile and disease activity in hematological malignancies, including non-Hodgkin lymphoma (NHL). The aim of his study was to evaluate the levels of plasma PL fractions in NHL patients, in response to chemotherapy. Forty non-treated patients with NHL and 25 healthy individuals were recruited. Blood samples from patients were taken before chemotherapy, after 3 cycles and after the end of the treatment, and PL fractions were resolved by one-dimensional thin-layer chromatography. To assess potential relationship between plasma PL profile and response to therapy, patients were divided according to clinical outcome in 3 groups: complete remission (CR), stable disease (SD) and progression (PG). Despite significant differences between NHL patients and healthy controls, no differences were found at baseline among patients divided according to clinical outcome. During and after chemotherapy important alterations in PL profile were observed. Levels of total PLs and all PL fractions decreased in patients with PG while in patients who responded to therapy (CR, SD) PLs significantly increased. Results of our study suggest that changes of total PLs and PL fractions during the therapy are associated with the effects of therapy and clinical outcome in patients with NHL. © 2017 Elsevier Ltd

Introduction: Eating disorders indicate unhealthy habits in nutrition and/or behaviour in the feeding and maintaining of body weight. The main characteristic of these diseases is changed behaviour in nutrition, either as an intentional restriction of food, namely extreme dieting or overeating, i.e. binge eating. Extreme dieting, skipping meals, self-induced vomiting, excessive exercise, and misuse of laxatives and diuretics for the purpose of maintaining or reducing body weight are the forms of compensatory behaviour. Objective: The purpose of the present research was to determine the presence of different inappropriate compensatory behaviours among eating disordered patients. Methods: The experimental group included 35 female eating disordered patients of 23.02±3.46 years on average, with anorexia or bulimia nervosa. The control group consisted of 70 girls aged 23.1±3.0 years on average. Each participant completed a "24-hour Recall Questionnaire" and the "Eating Disorder Diagnostic Scale". Results: A high statistically significant difference existed in the presence of all compensatory behaviours in the experimental and control group, regarding vomiting (χ2=40.6; p<0.001), misuse of laxatives and diuretics (χ2=33.7; p<0.001), extreme dieting (χ2=23.4; p<0.001) and excessive exercising (χ2=27.1; p<0.001). Conclusion: Eating disordered patients showed a significantly higher incidence of all evaluated forms of compensatory behaviour in comparison with the control group. This report confirms the presence of specific symptomatology of anorexia and bulimia patients.

Background/Objectives: Bone marrow adipose tissue (BMAT) has been described as an important biomechanic and lipotoxic factor with negative impacts on skeletal and hematopoietic system regeneration. BMAT undergoes metabolic and cellular adaptations with age and disease, being a source of potential biomarkers. However, there is no evidence on the lipid profile and cellularity at different skeletal locations in osteoarthritis patients undergoing primary hip arthroplasty. Methods: Acetabular and femoral bone marrow (BM) and gluteofemoral subcutaneous adipose tissue (gfSAT) were obtained from matched patients undergoing hip replacement surgery. BM, BMAT, and gfSAT were explored at the levels of total lipids, fatty acids, and cells by using thin-layerand gas chromatography, ex vivo cellular assays, and flow cytometry. Results: BMAT content was significantly higher in femoral than in acetabular BM. Total lipid analyses revealed significantly lower triglyceride content in femoral than in acetabular BMAT and gfSAT. Frequencies of saturated palmitic, myristic, and stearic acids were higher in femoral than in acetabular BMAT and gfSAT. The content of CD45+CD34+ cells within femoral BMAT was higher than in acetabular BMAT or gfSAT. This was associated with a higher incidence of total clonogenic hematopoietic progenitors and late erythroid colonies CFU-E in femoral BMAT when compared to acetabular BMAT, similar to their BM counterparts. Conclusions: Collectively, our results indicate that the lipid profiles of hip bone and femoral BMAT impose significantly different microenvironments and distributions of cells with hematopoietic potential. These findings might bring forth new inputs for defining BMAT biology and setting novel directions in OA disease investigations. © 2025 by the authors.

Background/Objectives: Bone marrow adipose tissue (BMAT) has been described as an important biomechanic and lipotoxic factor with negative impacts on skeletal and hematopoietic system regeneration. BMAT undergoes metabolic and cellular adaptations with age and disease, being a source of potential biomarkers. However, there is no evidence on the lipid profile and cellularity at different skeletal locations in osteoarthritis patients undergoing primary hip arthroplasty. Methods: Acetabular and femoral bone marrow (BM) and gluteofemoral subcutaneous adipose tissue (gfSAT) were obtained from matched patients undergoing hip replacement surgery. BM, BMAT, and gfSAT were explored at the levels of total lipids, fatty acids, and cells by using thin-layerand gas chromatography, ex vivo cellular assays, and flow cytometry. Results: BMAT content was significantly higher in femoral than in acetabular BM. Total lipid analyses revealed significantly lower triglyceride content in femoral than in acetabular BMAT and gfSAT. Frequencies of saturated palmitic, myristic, and stearic acids were higher in femoral than in acetabular BMAT and gfSAT. The content of CD45+CD34+ cells within femoral BMAT was higher than in acetabular BMAT or gfSAT. This was associated with a higher incidence of total clonogenic hematopoietic progenitors and late erythroid colonies CFU-E in femoral BMAT when compared to acetabular BMAT, similar to their BM counterparts. Conclusions: Collectively, our results indicate that the lipid profiles of hip bone and femoral BMAT impose significantly different microenvironments and distributions of cells with hematopoietic potential. These findings might bring forth new inputs for defining BMAT biology and setting novel directions in OA disease investigations. © 2025 by the authors.