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Sadowska-Krępa E, Rzetecki A, Zając-Gawlak I, Nawrat-Szołtysik A, Rozpara M, Mikuľáková W, Stanek A, Pałka T. Comparison of selected prooxidant-antioxidant balance and bone metabolism indicators and BDNF levels between older women with different levels of physical activity. BMC Geriatr 2023; 23:489. [PMID: 37580674 PMCID: PMC10424411 DOI: 10.1186/s12877-023-04205-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 07/30/2023] [Indexed: 08/16/2023] Open
Abstract
BACKGROUND Given a lack of studies precisely indicating how many steps elderly people should take daily for their antioxidant defence, bone metabolism, and cognitive abilities to improve, our study set out to compare the selected antioxidant, prooxidant, bone turnover, and BDNF indicators between elderly women differing in physical activity (PA) measured by the daily number of steps. METHODS The PA levels of 62 women aged 72.1 ± 5.4 years were assessed based on their daily number of steps and then were used to allocate the participants to three groups: group I (n = 18; <5,000 steps a day); group II (n = 22; from 5,000 to 9,999 steps a day); and group III (n = 22; ≥10,000 steps a day). Blood samples were collected from the participants in early morning hours and subjected to biochemical analysis for prooxidant-antioxidant balance indicators (SOD, CAT, GPx, GR, GSH, UA, MDA and TOS/TOC), bone metabolism indicators (Ca, 25-OH vitamin D, osteocalcin, CTX-I, and PTH), and BDNF levels. RESULTS The groups were not statistically significantly different in the activity of SOD, CAT, GPx, and GR, but their concentrations of GSH (H = 22.10, p < 0.001) and UA (H = 12.20, p = 0.002) proved to be significantly associated with the groups' daily PA. The between-group differences in the concentrations of MDA and TOS/TOC were not significant, with both these indicators tending to take higher values in group I than in groups II and III. Significant differences between the groups were established for the concentrations of 25-OH vitamin D (H = 24.21, p < 0.001), osteocalcin (H = 7.88, p = 0.019), CTX-I (H = 12.91, p = 0.002), and BDNF (H = 14.47, p = 0.001), but not for Ca and PTH. CONCLUSIONS Significantly higher concentrations of GSH, slightly lower oxidative stress indicators, significantly higher BDNF levels, and moderately better bone turnover indicators and resorption markers in the group taking more than 5,000 steps a day suggest that this level of PA can promote successful aging. More research is, however, needed to confirm this finding.
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Affiliation(s)
- Ewa Sadowska-Krępa
- Institute of Sport Sciences, Department of Biomedical Basis of Physical Activity, Academy of Physical Education in Katowice, Katowice, 40-065, Poland.
| | - Adam Rzetecki
- Institute of Sport Sciences, Department of Biomedical Basis of Physical Activity, Academy of Physical Education in Katowice, Katowice, 40-065, Poland
| | - Izabela Zając-Gawlak
- Institute of Physiotherapy and Health Sciences, Department of Physiotherapy in Internal Diseases, Academy of Physical Education in Katowice, Katowice, 40-065, Poland
| | - Agnieszka Nawrat-Szołtysik
- Institute of Physiotherapy and Health Sciences, Department of Physiotherapy, Academy of Physical Education in Katowice, Katowice, 40-065, Poland
| | - Michał Rozpara
- Institute of Sport Sciences, Department of Health-Promoting Physical Activity and Tourism, Academy of Physical Education in Katowice, Katowice, 40-065, Poland
| | - Wioletta Mikuľáková
- Faculty of Health Care, Department of Physiotherapy, University of Presov, Presov, 080 01, Slovak Republic
| | - Agata Stanek
- Department and Clinic of Internal Medicine, Angiology and Physical Medicine, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, Bytom, 41-902, Poland
| | - Tomasz Pałka
- Department of Physiology and Biochemistry, Faculty of Physical Education and Sport, University of Physical Education in Krakow, Krakow, 31-571, Poland
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Rashid U, Becker SK, Sponder G, Trappe S, Sandhu MA, Aschenbach JR. Low Magnesium Concentration Enforces Bone Calcium Deposition Irrespective of 1,25-Dihydroxyvitamin D 3 Concentration. Int J Mol Sci 2023; 24:ijms24108679. [PMID: 37240030 DOI: 10.3390/ijms24108679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/08/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Efficient coordination between Mg2+ and vitamin D maintains adequate Ca2+ levels during lactation. This study explored the possible interaction between Mg2+ (0.3, 0.8, and 3 mM) and 1,25-dihydroxyvitamin D3 (1,25D; 0.05 and 5 nM) during osteogenesis using bovine mesenchymal stem cells. After 21 days, differentiated osteocytes were subjected to OsteoImage analysis, alkaline phosphatase (ALP) activity measurements, and immunocytochemistry of NT5E, ENG (endoglin), SP7 (osterix), SPP1 (osteopontin), and the BGLAP gene product osteocalcin. The mRNA expression of NT5E, THY1, ENG, SP7, BGLAP, CYP24A1, VDR, SLC41A1, SLC41A2, SLC41A3, TRPM6, TRPM7, and NIPA1 was also assessed. Reducing the Mg2+ concentration in the medium increased the accumulation of mineral hydroxyapatite and ALP activity. There was no change in the immunocytochemical localization of stem cell markers. Expression of CYP24A1 was higher in all groups receiving 5 nM 1,25D. There were tendencies for higher mRNA abundance of THY1, BGLAP, and NIPA1 in cells receiving 0.3 mM Mg2+ and 5 nM 1,25D. In conclusion, low levels of Mg2+ greatly enhanced the deposition of bone hydroxyapatite matrix. The effect of Mg2+ was not modulated by 1,25D, although the expression of certain genes (including BGLAP) tended to be increased by the combination of low Mg2+ and high 1,25D concentrations.
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Affiliation(s)
- Usman Rashid
- Department of Clinical Studies, Faculty of Veterinary and Animal Sciences, PMAS-Arid Agriculture University, Rawalpindi 46300, Pakistan
| | - Sandra K Becker
- Institute of Veterinary Physiology, Department of Veterinary Medicine, Freie Universität Berlin, 14163 Berlin, Germany
| | - Gerhard Sponder
- Institute of Veterinary Physiology, Department of Veterinary Medicine, Freie Universität Berlin, 14163 Berlin, Germany
| | - Susanne Trappe
- Institute of Veterinary Physiology, Department of Veterinary Medicine, Freie Universität Berlin, 14163 Berlin, Germany
| | - Mansur A Sandhu
- Institute of Veterinary Physiology, Department of Veterinary Medicine, Freie Universität Berlin, 14163 Berlin, Germany
- Department of Veterinary Biomedical Sciences, Faculty of Veterinary and Animal Sciences, PMAS-Arid Agriculture University, Rawalpindi 46300, Pakistan
| | - Jörg R Aschenbach
- Institute of Veterinary Physiology, Department of Veterinary Medicine, Freie Universität Berlin, 14163 Berlin, Germany
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Ugurlu I, Akalin A, Yorulmaz G. The Association of Serum Osteocalcin Levels with Metabolic Parameters and Inflammation in Postmenopausal Women with Metabolic Syndrome. Metab Syndr Relat Disord 2022; 20:219-223. [PMID: 35119301 DOI: 10.1089/met.2021.0074] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Introduction: Although adipose tissue largely plays a role in the etiopathogenesis of metabolic syndrome (MS), which is an inflammatory process, the skeleton may also contribute to this process through osteocalcin (OC), which is a bone-derived protein. In this study, we aimed to evaluate OC levels in postmenopausal women with MS and to investigate the association of OC levels with the metabolic and inflammatory parameters. Methods: Thirty-five postmenopausal women diagnosed with MS were recruited for the study. Sixteen postmenopausal women without any of the MS criteria formed the control group. Body weight, height, and waist and hip circumference of all of the subjects were measured and body mass indices (BMIs) were calculated. Levels of serum glucose, insulin, C-peptide, triglyceride, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, albumin, creatinine, calcium, phosphorus, total alkaline phosphatase, parathormone, and as inflammatory parameters, erythrocyte sedimentation rate, fibrinogen, and high-sensitive C-reactive protein (hsCRP) were studied from fasting venous blood samples of all the subjects. Homeostatic model assessment for insulin resistance (HOMA-IR) was calculated. Serum total OC levels were studied from all of the subjects. Bone mineral densities were also measured. Results: Serum OC levels of the group with MS median (5.37 ng/mL) were lower than the OC levels of the group without MS (P < 0.01). Serum OC levels significantly and negatively correlated with fasting blood glucose (r = -0.310, P < 0.05), insulin (r = -0.343, P < 0.05), and HOMA-IR (r = -0.384, P < 0.01) values. Serum OC levels showed a significant and negative correlation with body weight (r = -0.293, P < 0.05), BMI (r = -0.333, P < 0.05), and waist-to-hip ratio (r = -0.384, P < 0.05). The inflammatory markers in the patient group were significantly higher than the control group. We found a negative association between serum OC levels and hsCRP levels in all cases (r = -0.283, P < 0.05). Conclusion: In the presence of MS, OC levels are significantly low and display a close association with glucose metabolism and adipose tissue. In addition, OC may play a regulatory role in subclinical systematic inflammatory response.
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Affiliation(s)
- Irem Ugurlu
- Department of Internal Medicine, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Aysen Akalin
- Division of Endocrinology, Department of Internal Medicine, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Goknur Yorulmaz
- Division of Endocrinology, Department of Internal Medicine, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
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Cooper ID, Brookler KH, Crofts CAP. Rethinking Fragility Fractures in Type 2 Diabetes: The Link between Hyperinsulinaemia and Osteofragilitas. Biomedicines 2021; 9:1165. [PMID: 34572351 PMCID: PMC8472634 DOI: 10.3390/biomedicines9091165] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/27/2021] [Accepted: 09/02/2021] [Indexed: 02/06/2023] Open
Abstract
Patients with type 2 diabetes mellitus (T2DM) and/or cardiovascular disease (CVD), conditions of hyperinsulinaemia, have lower levels of osteocalcin and bone remodelling, and increased rates of fragility fractures. Unlike osteoporosis with lower bone mineral density (BMD), T2DM bone fragility "hyperinsulinaemia-osteofragilitas" phenotype presents with normal to increased BMD. Hyperinsulinaemia and insulin resistance positively associate with increased BMD and fragility fractures. Hyperinsulinaemia enforces glucose fuelling, which decreases NAD+-dependent antioxidant activity. This increases reactive oxygen species and mitochondrial fission, and decreases oxidative phosphorylation high-energy production capacity, required for osteoblasto/cytogenesis. Osteocytes directly mineralise and resorb bone, and inhibit mineralisation of their lacunocanalicular space via pyrophosphate. Hyperinsulinaemia decreases vitamin D availability via adipocyte sequestration, reducing dendrite connectivity, and compromising osteocyte viability. Decreased bone remodelling and micropetrosis ensues. Trapped/entombed magnesium within micropetrosis fossilisation spaces propagates magnesium deficiency (MgD), potentiating hyperinsulinaemia and decreases vitamin D transport. Vitamin D deficiency reduces osteocalcin synthesis and favours osteocyte apoptosis. Carbohydrate restriction/fasting/ketosis increases beta-oxidation, ketolysis, NAD+-dependent antioxidant activity, osteocyte viability and osteocalcin, and decreases excess insulin exposure. Osteocalcin is required for hydroxyapatite alignment, conferring bone structural integrity, decreasing fracture risk and improving metabolic/endocrine homeodynamics. Patients presenting with fracture and normal BMD should be investigated for T2DM and hyperinsulinaemia.
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Affiliation(s)
- Isabella D. Cooper
- Translational Physiology Research Group, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK
| | - Kenneth H. Brookler
- Research Collaborator, Aerospace Medicine and Vestibular Research Laboratory, Mayo Clinic, Scottsdale, AZ 85259, USA;
| | - Catherine A. P. Crofts
- School of Public Health and Interdisciplinary Studies, Faculty of Health and Environmental Sciences, Auckland University of Technology, Auckland 0627, New Zealand;
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Metabolic Phenotypes and Step by Step Evolution of Type 2 Diabetes: A New Paradigm. Biomedicines 2021; 9:biomedicines9070800. [PMID: 34356863 PMCID: PMC8301386 DOI: 10.3390/biomedicines9070800] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 07/02/2021] [Accepted: 07/05/2021] [Indexed: 01/18/2023] Open
Abstract
Unlike bolus insulin secretion mechanisms, basal insulin secretion is poorly understood. It is essential to elucidate these mechanisms in non-hyperinsulinaemia healthy persons. This establishes a baseline for investigation into pathologies where these processes are dysregulated, such as in type 2 diabetes (T2DM), cardiovascular disease (CVD), certain cancers and dementias. Chronic hyperinsulinaemia enforces glucose fueling, depleting the NAD+ dependent antioxidant activity that increases mitochondrial reactive oxygen species (mtROS). Consequently, beta-cell mitochondria increase uncoupling protein expression, which decreases the mitochondrial ATP surge generation capacity, impairing bolus mediated insulin exocytosis. Excessive ROS increases the Drp1:Mfn2 ratio, increasing mitochondrial fission, which increases mtROS; endoplasmic reticulum-stress and impaired calcium homeostasis ensues. Healthy individuals in habitual ketosis have significantly lower glucagon and insulin levels than T2DM individuals. As beta-hydroxybutyrate rises, hepatic gluconeogenesis and glycogenolysis supply extra-hepatic glucose needs, and osteocalcin synthesis/release increases. We propose insulin’s primary role is regulating beta-hydroxybutyrate synthesis, while the role of bone regulates glucose uptake sensitivity via osteocalcin. Osteocalcin regulates the alpha-cell glucagon secretory profile via glucagon-like peptide-1 and serotonin, and beta-hydroxybutyrate synthesis via regulating basal insulin levels. Establishing metabolic phenotypes aids in resolving basal insulin secretion regulation, enabling elucidation of the pathological changes that occur and progress into chronic diseases associated with ageing.
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The Role of Vitamin K in Humans: Implication in Aging and Age-Associated Diseases. Antioxidants (Basel) 2021; 10:antiox10040566. [PMID: 33917442 PMCID: PMC8067486 DOI: 10.3390/antiox10040566] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/02/2021] [Accepted: 04/02/2021] [Indexed: 12/17/2022] Open
Abstract
As human life expectancy is rising, the incidence of age-associated diseases will also increase. Scientific evidence has revealed that healthy diets, including good fats, vitamins, minerals, or polyphenolics, could have antioxidant and anti-inflammatory activities, with antiaging effects. Recent studies demonstrated that vitamin K is a vital cofactor in activating several proteins, which act against age-related syndromes. Thus, vitamin K can carboxylate osteocalcin (a protein capable of transporting and fixing calcium in bone), activate matrix Gla protein (an inhibitor of vascular calcification and cardiovascular events) and carboxylate Gas6 protein (involved in brain physiology and a cognitive decline and neurodegenerative disease inhibitor). By improving insulin sensitivity, vitamin K lowers diabetes risk. It also exerts antiproliferative, proapoptotic, autophagic effects and has been associated with a reduced risk of cancer. Recent research shows that protein S, another vitamin K-dependent protein, can prevent the cytokine storm observed in COVID-19 cases. The reduced activation of protein S due to the pneumonia-induced vitamin K depletion was correlated with higher thrombogenicity and possibly fatal outcomes in COVID-19 patients. Our review aimed to present the latest scientific evidence about vitamin K and its role in preventing age-associated diseases and/or improving the effectiveness of medical treatments in mature adults ˃50 years old.
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Hu B, Chen L, Chen Y, Zhang Z, Wang X, Zhou B. Cyanidin-3-glucoside Regulates Osteoblast Differentiation via the ERK1/2 Signaling Pathway. ACS OMEGA 2021; 6:4759-4766. [PMID: 33644583 PMCID: PMC7905819 DOI: 10.1021/acsomega.0c05603] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 02/02/2021] [Indexed: 05/08/2023]
Abstract
Osteoporosis, characterized by a gradual decrease in the number of osteoblasts and a gradual increase in bone resorption of osteoclasts in bone tissue, is a global chronic disease, which severely impairs the quality of life of the elderly. Therefore, it is extremely urgent to study the prevention and treatment of osteoporosis. It has been reported that anthocyanins can regulate bone metabolism and prevent osteoporosis. Cyanidin-3-O-glucoside (C3G), the most common type of anthocyanin in nature, widely exists in a variety of vegetables and fruits. Although it has been shown that C3G has multiple effects on osteoclasts, its impact(s) and underlying mechanism(s) on osteoblasts are still not clear. Here, we evaluated the effect of C3G on cell proliferation and differentiation of osteoblasts (extracted from the hip joint of patients with osteoporosis) and MC3T3-E1 (a kind of osteoblast cell line from mice). We also test the ability of osteoblasts to mineralize after C3G treatment. To find the underlying mechanism of the above effects, we further evaluated the role of the ERK signaling pathway in C3G regulation of osteoblasts. The results showed that C3G treatment enhanced osteoblast proliferation rate, osteoblast mineralization points, the mRNA levels and protein expression levels of OC (osteocalcin), and the level of ERK phosphorylation, which could be blocked by pretreatment with ERK signaling pathway inhibitor. The above results not only indicate that the ERK pathway was involved in C3G regulation of osteoblast differentiation but also provide strong suggestive evidence that osteoblasts may be promising targets in preventive and therapeutic strategies for osteoporosis.
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Affiliation(s)
- Bosen Hu
- School
of Public Health, Shenyang Medical College, 146 North Huanghe Street, Shenyang, Liaoning 110034, China
| | - Lin Chen
- School
of Public Health, Shenyang Medical College, 146 North Huanghe Street, Shenyang, Liaoning 110034, China
| | - Yong Chen
- Central
Hospital Affiliated to Shenyang Medical College, 5 South 7th West Rd, Shenyang, Liaoning 110024, China
| | - Zhuo Zhang
- School
of Public Health, Shenyang Medical College, 146 North Huanghe Street, Shenyang, Liaoning 110034, China
| | - Xiaohong Wang
- School
of Public Health, Shenyang Medical College, 146 North Huanghe Street, Shenyang, Liaoning 110034, China
| | - Bo Zhou
- School
of Public Health, Shenyang Medical College, 146 North Huanghe Street, Shenyang, Liaoning 110034, China
- . Phone: +86-159-981-18508
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