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Staudinger JL, Mahroke A, Patel G, Dattel C, Reddy S. Pregnane X Receptor Signaling Pathway and Vitamin K: Molecular Mechanisms and Clinical Relevance in Human Health. Cells 2024; 13:681. [PMID: 38667296 PMCID: PMC11049418 DOI: 10.3390/cells13080681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
This review explores the likely clinical impact of Pregnane X Receptor (PXR) activation by vitamin K on human health. PXR, initially recognized as a master regulator of xenobiotic metabolism in liver, emerges as a key regulator influencing intestinal homeostasis, inflammation, oxidative stress, and autophagy. The activation of PXR by vitamin K highlights its role as a potent endogenous and local agonist with diverse clinical implications. Recent research suggests that the vitamin K-mediated activation of PXR highlights this vitamin's potential in addressing pathophysiological conditions by promoting hepatic detoxification, fortifying gut barrier integrity, and controlling pro-inflammatory and apoptotic pathways. PXR activation by vitamin K provides an intricate association with cancer cell survival, particularly in colorectal and liver cancers, to provide new insights into potential novel therapeutic strategies. Understanding the clinical implications of PXR activation by vitamin K bridges molecular mechanisms with health outcomes, further offering personalized therapeutic approaches for complex diseases.
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Affiliation(s)
- Jeff L. Staudinger
- Division of Basic Sciences, Farber-McIntire Campus, College of Osteopathic Medicine, Kansas City University, Joplin Campus, 2901 St Johns Blvd, Joplin, MO 64804, USA (C.D.); (S.R.)
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2
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Vo HVT, Nguyen YT, Kim N, Lee HJ. Vitamin A, D, E, and K as Matrix Metalloproteinase-2/9 Regulators That Affect Expression and Enzymatic Activity. Int J Mol Sci 2023; 24:17038. [PMID: 38069361 PMCID: PMC10707015 DOI: 10.3390/ijms242317038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/25/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
Fat-soluble vitamins (vitamin A, D, E, and K) assume a pivotal role in maintaining human homeostasis by virtue of their enzymatic functions. The daily inclusion of these vitamins is imperative to the upkeep of various physiological processes including vision, bone health, immunity, and protection against oxidative stress. Current research highlights fat-soluble vitamins as potential therapeutics for human diseases, especially cancer. Fat-soluble vitamins exert their therapeutic effects through multiple pathways, including regulation of matrix metalloproteinases' (MMPs) expression and enzymatic activity. As MMPs have been reported to be involved in the pathology of various diseases, such as cancers, cardiovascular diseases, and neurological disorders, regulating the expression and/or activity of MMPs could be considered as a potent therapeutic strategy. Here, we summarize the properties of fat-soluble vitamins and their potential as promising candidates capable of effectively modulating MMPs through multiple pathways to treat human diseases.
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Affiliation(s)
- Ha Vy Thi Vo
- Department of Chemistry Education, Kongju National University, Gongju 32588, Republic of Korea;
| | - Yen Thi Nguyen
- Department of Chemistry, Kongju National University, Gongju 32588, Republic of Korea;
| | - Namdoo Kim
- Department of Chemistry, Kongju National University, Gongju 32588, Republic of Korea;
| | - Hyuck Jin Lee
- Department of Chemistry Education, Kongju National University, Gongju 32588, Republic of Korea;
- Kongju National University Institute of Science Education, Kongju National University, Gongju 32588, Republic of Korea
- Kongju National University’s Physical Fitness for Health Research Lab (KNUPFHR), Kongju National University, Gongju 32588, Republic of Korea
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Ansari S, Abbasi B, Saneei P, Heidari Z, Saraf-Bank S. Higher lacto-vegetarian dietary score is associated with reduced risk of postmenopausal osteoporosis: A case-control study in a sample of Iranian postmenopausal women. Nutr Res 2023; 120:88-98. [PMID: 37950985 DOI: 10.1016/j.nutres.2023.08.003] [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: 04/24/2023] [Revised: 08/11/2023] [Accepted: 08/11/2023] [Indexed: 11/13/2023]
Abstract
Osteoporosis is a systemic skeletal disease manifesting as weak and fragile bones. Dietary patterns have been described as an affecting constituent of bone metabolism. There is no consensus on the advantages or harms of vegetarian diets on bone health. This study aimed to design a lacto-vegetarian dietary score (LVDS) to evaluate the similarity of an individual's dietary pattern to the lacto-vegetarian dietary pattern and assess its association with postmenopausal osteoporosis (PMO). We hypothesized that individuals with greater LVDS will have a lower risk for PMO. In this hospital-based, case-control study, 220 cases (definitively diagnosed with osteoporosis) and 220 age-matched controls were registered. Usual dietary intakes were evaluated by a validated 147-item semiquantitative food frequency questionnaire. To design the LVDS, the energy-adjusted intakes of 12 food groups were categorized into quintiles, and positive or reverse points were assigned. To determine the association between the LVDS and PMO, binary logistic regression was used. Those in the top tertile of the LVDS had a lower chance of PMO compared with those in the bottom tertile (odds ratio, 0.11; 95% confidence interval, 0.06-0.22). An inverse relation was obtained between vegetables, fruits, legumes, nuts, dairy, soy protein, and egg consumption and PMO. Higher consumption of vegetable and animal oils significantly increased the risk of PMO. A dietary pattern similar to the lacto-vegetarian dietary pattern and concentrated on greater consumption of legumes, nuts, dairy, fruits, vegetables, and soy protein can be suggested as a protective method against PMO. Further, longitudinal studies are required to confirm these findings.
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Affiliation(s)
- Shakila Ansari
- Nutrition and Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Behnood Abbasi
- Department of Nutrition, Electronic Health and Statistics Surveillance Research Center, Science and Research Branch, Islamic Azad University, Tehran, Iran.
| | - Parvane Saneei
- Nutrition and Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zahra Heidari
- Department of Epidemiology and Biostatistics, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sahar Saraf-Bank
- Nutrition and Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran.
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Reis AR, Santos RKF, Dos Santos CB, Santos BDC, de Carvalho GB, Brandão-Lima PN, de Oliveira E Silva AM, Pires LV. Supplementation of vitamin D isolated or calcium-associated with bone remodeling and fracture risk in postmenopausal women without osteoporosis: A systematic review of randomized clinical trials. Nutrition 2023; 116:112151. [PMID: 37544189 DOI: 10.1016/j.nut.2023.112151] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/25/2023] [Accepted: 06/30/2023] [Indexed: 08/08/2023]
Abstract
Menopause and vitamin D deficiency increase bone reabsorption and bone fracture risk in women in postmenopause, and vitamin D supplementation may improve bone health and decrease bone fracture risk. This study aims to discuss the effect of vitamin D supplementation, isolated or calcium-associated, on remodeling and fracture risk bone in women in postmenopause without osteoporosis. This study was conducted according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines (PROSPERO database registration: CRD42022359796). A search was conducted in four databases and gray literature using MeSH and similar terms related to supplements, vitamin D, calcium, remodeling, and fracture bone, without the restriction of language and year of publication. A total of 3460 studies were identified, and nine were selected. Vitamin D supplementation increased 25-hydroxyvitamin D levels ≥10 ng/mL and decreased parathyroid hormone secretion dependent on baseline levels. The doses of 400 IU of vitamin D improved the percentage of carboxylated osteocalcin, whereas 800 to 1000 IU combined with calcium resulted in reduced, improved, or maintained bone mineral density and reduced alkaline phosphatase levels. However, 4000 IU alone or combined with calcium for 6 mo did not improve C-telopeptide and procollagen type 1 peptide levels. Additionally, 15 000 IU/wk increased the cortical area of metacarpal bone, whereas 500 000 IU of vitamin D annually for 5 y did not contribute to reducing the fracture risk and falls. Only one study found a reduction in fracture risk (dose of 800 IU of vitamin D plus 1200 mg of calcium). Thus, the vitamin D supplementation, alone or calcium-associated, improved the status of 25-hydroxyvitamin D and bone remodeling, but it was not possible to assert that it reduced fracture bone risk in postmenopausal women.
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Affiliation(s)
- Aline Rocha Reis
- Postgraduate Program in Nutrition Sciences, Department of Nutrition, Federal University of Sergipe, São Cristóvão, Brazil; Nutritional Biochemistry Laboratory, Department of Nutrition, Center for Biological and Health Sciences, Federal University of Sergipe, São Cristóvão, Brazil
| | - Ramara Kadija Fonseca Santos
- Nutritional Biochemistry Laboratory, Department of Nutrition, Center for Biological and Health Sciences, Federal University of Sergipe, São Cristóvão, Brazil; Postgraduate Program in Health Sciences, Federal University of Sergipe, Aracaju, Brazil
| | - Cynthia Batista Dos Santos
- Postgraduate Program in Nutrition Sciences, Department of Nutrition, Federal University of Sergipe, São Cristóvão, Brazil; Nutritional Biochemistry Laboratory, Department of Nutrition, Center for Biological and Health Sciences, Federal University of Sergipe, São Cristóvão, Brazil
| | - Beatriz da Cruz Santos
- Postgraduate Program in Nutrition Sciences, Department of Nutrition, Federal University of Sergipe, São Cristóvão, Brazil; Nutritional Biochemistry Laboratory, Department of Nutrition, Center for Biological and Health Sciences, Federal University of Sergipe, São Cristóvão, Brazil
| | | | | | - Ana Mara de Oliveira E Silva
- Postgraduate Program in Nutrition Sciences, Department of Nutrition, Federal University of Sergipe, São Cristóvão, Brazil; Postgraduate Program in Health Sciences, Federal University of Sergipe, Aracaju, Brazil
| | - Liliane Viana Pires
- Postgraduate Program in Nutrition Sciences, Department of Nutrition, Federal University of Sergipe, São Cristóvão, Brazil; Nutritional Biochemistry Laboratory, Department of Nutrition, Center for Biological and Health Sciences, Federal University of Sergipe, São Cristóvão, Brazil.
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Wang H, Ma Y. The Potential of Vitamin K as a Regulatory Factor of Bone Metabolism-A Review. Nutrients 2023; 15:4935. [PMID: 38068793 PMCID: PMC10708186 DOI: 10.3390/nu15234935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 11/23/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
Vitamin K (VK), a fat-soluble vitamin, is essential for the clotting of blood because of its role in the production of clotting factors in the liver. Moreover, researchers continue to explore the role of VK as an emerging novel bioactive molecule with the potential function of improving bone health. This review focuses on the effects of VK on bone health and related mechanisms, covering VK research history, homologous analogs, dietary sources, bioavailability, recommended intake, and deficiency. The information summarized here could contribute to the basic and clinical research on VK as a natural dietary additive and drug candidate for bone health. Future research is needed to extend the dietary VK database and explore the pharmacological safety of VK and factors affecting VK bioavailability to provide more support for the bone health benefits of VK through more clinical trials.
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Affiliation(s)
- Huakai Wang
- Department of Animal Nutrition and Feed Science, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China;
- Institute of Animal Husbandry and Veterinary Medicine, Anhui Academy of Agricultural Sciences, Nongkenan Road No. 40, Hefei 230031, China
| | - Yongxi Ma
- Department of Animal Nutrition and Feed Science, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China;
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Gill PK, Hegele RA. Low cholesterol states: clinical implications and management. Expert Rev Endocrinol Metab 2023; 18:241-253. [PMID: 37089071 DOI: 10.1080/17446651.2023.2204932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 04/17/2023] [Indexed: 04/25/2023]
Abstract
INTRODUCTION Hypocholesterolemia results from genetic - both monogenic and polygenic - and non-genetic causes and can sometimes be a source of clinical concern. We review etiologies and sequelae of hypocholesterolemia and therapeutics inspired from genetic hypocholesterolemia. AREAS COVERED Monogenic hypocholesterolemia disorders caused by the complete absence of apolipoprotein (apo) B-containing lipoproteins (abetalipoproteinemia and homozygous hypobetalipoproteinemia) or an isolated absence of apo B-48 lipoproteinemia (chylomicron retention disease) lead to clinical sequelae. These include gastrointestinal disturbances and severe vitamin deficiencies that affect multiple body systems, i.e. neurological, musculoskeletal, ophthalmological, and hematological. Monogenic hypocholesterolemia disorders with reduced but not absent levels of apo B lipoproteins have a milder clinical presentation and patients are protected against atherosclerotic cardiovascular disease. Patients with heterozygous hypobetalipoproteinemia have somewhat increased risk of hepatic disease, while patients with PCSK9 deficiency, ANGPTL3 deficiency, and polygenic hypocholesterolemia typically have anunremarkable clinical presentation. EXPERT OPINION In patients with severe monogenic hypocholesterolemia, early initiation of high-dose vitamin therapy and a low-fat diet are essential for optimal prognosis. The molecular basis of monogenic hypocholesterolemia has inspired novel therapeutics to help patients with the opposite phenotype - i.e. elevated apo B-containing lipoproteins. In particular, inhibitors of PCSK9 and ANGPTL3 show important clinical impact.
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Affiliation(s)
- Praneet K Gill
- Department of Medicine, Schulich School of Medicine and Dentistry, Western University, London, Canada
| | - Robert A Hegele
- Department of Medicine, Schulich School of Medicine and Dentistry, Western University, London, Canada
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Nielsen CV, Folkestad L, Krøijer R, Hansen SG. The risk of osteoporosis is not increased after cholecystectomy. A nationwide cohort study. Bone 2023; 173:116782. [PMID: 37120083 DOI: 10.1016/j.bone.2023.116782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 04/04/2023] [Accepted: 04/21/2023] [Indexed: 05/01/2023]
Affiliation(s)
- Catharina Vind Nielsen
- Department of Diabetes and Endocrinology, University Hospital Southern Denmark, Esbjerg, Denmark
| | - Lars Folkestad
- Department of Endocrinology, Odense University Hospital, Odense, Denmark; Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Rasmus Krøijer
- Department of Surgery, University Hospital Southern Denmark, Esbjerg, Denmark
| | - Stinus Gadegaard Hansen
- Department of Diabetes and Endocrinology, University Hospital Southern Denmark, Esbjerg, Denmark; Department of Regional Health Research, University of Southern Denmark, Odense, Denmark.
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Xu Q, Li D, Chen J, Yang J, Yan J, Xia Y, Zhang F, Wang X, Cao H. Crosstalk between the gut microbiota and postmenopausal osteoporosis: Mechanisms and applications. Int Immunopharmacol 2022; 110:108998. [PMID: 35785728 DOI: 10.1016/j.intimp.2022.108998] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 06/08/2022] [Accepted: 06/21/2022] [Indexed: 12/14/2022]
Abstract
Postmenopausal osteoporosis (PMO) results from a reduction in bone mass and microarchitectural deterioration in bone tissue due to estrogen deficiency, which may increase the incidence of fragility fractures. The number of people suffering from PMO has increased over the years because of the rapidly aging population worldwide. However, several pharmacological agents for the treatment of PMO have many safety risks and impose a heavy financial burden to patients and society. In recent years, the "gut-bone" axis has been proposed as a new approach in the prevention and treatment of PMO. This paper reviews the relationship between the gut microbiota and PMO, which mainly includes the underlying mechanisms between hormones, immunity, nutrient metabolism, metabolites of the gut microbiota and intestinal permeability, and explores the possible role of the gut microbiota in these processes. Finally, we discuss the therapeutic effects of diet, prebiotics, probiotics, and fecal microbiota transplantation on the gut microbiota.
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Affiliation(s)
- Qin Xu
- Nutrition Department, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China; Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Dan Li
- Nutrition Department, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China; Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China; Clinical Assessment Center of Functional Food, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Jing Chen
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China; Nursing Department, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Ju Yang
- Nutrition Department, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China; Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China; Clinical Assessment Center of Functional Food, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Jiai Yan
- Nutrition Department, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China; Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China; Clinical Assessment Center of Functional Food, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Yanping Xia
- Nutrition Department, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China; Clinical Assessment Center of Functional Food, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Feng Zhang
- Nutrition Department, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China; Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China; Clinical Assessment Center of Functional Food, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Xuesong Wang
- Nutrition Department, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China; Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China; Clinical Assessment Center of Functional Food, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China; Department of Orthopedics, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Hong Cao
- Nutrition Department, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China; Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China; Clinical Assessment Center of Functional Food, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China; Department of Endocrinology, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China.
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Shahid A, Inam‐Ur‐Raheem M, Iahtisham‐Ul‐Haq , Nawaz MY, Rashid MH, Oz F, Proestos C, Aadil RM. Diet and lifestyle modifications: An update on non‐pharmacological approach in the management of osteoarthritis. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Arashi Shahid
- National Institute of Food Science and Technology University of Agriculture Faisalabad Pakistan
| | - Muhammad Inam‐Ur‐Raheem
- National Institute of Food Science and Technology University of Agriculture Faisalabad Pakistan
| | - Iahtisham‐Ul‐Haq
- Kauser Abdulla Malik School of Life Sciences Forman Christian College (A Chartered University) Punjab Pakistan
| | - Muhammad Yasir Nawaz
- Department of Pathology Faculty of Veterinary Science, University of Agriculture Faisalabad Faisalabad Pakistan
| | - Muhammad Hamdan Rashid
- National Institute of Food Science and Technology University of Agriculture Faisalabad Pakistan
| | - Fatih Oz
- Department of Food Engineering, Faculty of Agriculture Ataturk University Erzurum Turkey
| | - Charalampos Proestos
- Laboratory of Food Chemistry, Department of Chemistry National and Kapodistrian University of Athens Zografou Athens Greece
| | - Rana Muhammad Aadil
- National Institute of Food Science and Technology University of Agriculture Faisalabad Pakistan
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Isacco CG, Nguyen KC, Pham VH, Di Palma G, Aityan SK, Tomassone D, Distratis P, Lazzaro R, Balzanelli MG, Inchingolo F. Bone decay and diabetes type 2 in searching for a link. Endocr Metab Immune Disord Drug Targets 2022; 22:904-910. [PMID: 35331127 DOI: 10.2174/1871530322666220324150327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 01/17/2022] [Accepted: 02/02/2022] [Indexed: 11/22/2022]
Affiliation(s)
- Ciro Gargiulo Isacco
- Department of Interdisciplinary Medicine (D.I.M.) of Bari University of Medicine Aldo Moro, Bari City Italy
| | - Kieu Cd Nguyen
- 118 Pre-Hospital and Emergency Department, SG Moscati Hospital, ASL Taranto, Italy
| | - Van H Pham
- Phan Chau Trinh University of Medicine Hoi An City Vietnam
| | - Gianna Di Palma
- Department of Interdisciplinary Medicine (D.I.M.) of Bari University of Medicine Aldo Moro, Bari City Italy
| | | | - Diego Tomassone
- Foundation of Physics Research Center (FoPRC), Celico-CS, Italy
| | - Pietro Distratis
- 118 Pre-Hospital and Emergency Department, SG Moscati Hospital, ASL Taranto, Italy
| | - Rita Lazzaro
- 118 Pre-Hospital and Emergency Department, SG Moscati Hospital, ASL Taranto, Italy
| | - Mario G Balzanelli
- 118 Pre-Hospital and Emergency Department, SG Moscati Hospital, ASL Taranto, Italy
| | - Francesco Inchingolo
- Department of Interdisciplinary Medicine (D.I.M.) of Bari University of Medicine Aldo Moro, Bari City Italy
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Production of Vitamin K by Wild-Type and Engineered Microorganisms. Microorganisms 2022; 10:microorganisms10030554. [PMID: 35336129 PMCID: PMC8954062 DOI: 10.3390/microorganisms10030554] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/23/2022] [Accepted: 03/01/2022] [Indexed: 12/14/2022] Open
Abstract
Vitamin K is a fat-soluble vitamin that mainly exists as phylloquinone or menaquinone in nature. Vitamin K plays an important role in blood clotting and bone health in humans. For use as a nutraceutical, vitamin K is produced by natural extraction, chemical synthesis, and microbial fermentation. Natural extraction and chemical synthesis methods for vitamin K production have limitations, such as low yield of products and environmental concerns. Microbial fermentation is a more sustainable process for industrial production of natural vitamin K than two other methods. Recent advanced genetic technology facilitates industrial production of vitamin K by increasing the yield and productivity of microbial host strains. This review covers (i) general information about vitamin K and microbial host, (ii) current titers of vitamin K produced by wild-type microorganisms, and (iii) vitamin K production by engineered microorganisms, including the details of strain engineering strategies. Finally, current limitations and future directions for microbial production of vitamin K are also discussed.
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Mohamed Abdelmoniem A, Abdelshafy Abdelhamid I, Butenschön H. Bidirectional Synthesis, Photophysical and Electrochemical Characterization of Polycyclic Quinones Using Benzocyclobutenes and Benzodicyclobutenes as Precursors. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Amr Mohamed Abdelmoniem
- Institut für Organische Chemie Leibniz Universität Hannover Schneiderberg 1B 30167 Hannover Germany
- Department of Chemistry Faculty of Science Cairo University 12613 Giza A. R. Egypt
| | | | - Holger Butenschön
- Institut für Organische Chemie Leibniz Universität Hannover Schneiderberg 1B 30167 Hannover Germany
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Elsabrouty R, Jo Y, Hwang S, Jun DJ, DeBose-Boyd RA. Type 1 polyisoprenoid diphosphate phosphatase modulates geranylgeranyl-mediated control of HMG CoA reductase and UBIAD1. eLife 2021; 10:64688. [PMID: 34842525 PMCID: PMC8641950 DOI: 10.7554/elife.64688] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 11/28/2021] [Indexed: 11/18/2022] Open
Abstract
UbiA prenyltransferase domain-containing protein-1 (UBIAD1) utilizes geranylgeranyl pyrophosphate (GGpp) to synthesize the vitamin K2 subtype menaquinone-4. The prenyltransferase has emerged as a key regulator of sterol-accelerated, endoplasmic reticulum (ER)-associated degradation (ERAD) of HMG CoA reductase, the rate-limiting enzyme in synthesis of cholesterol and nonsterol isoprenoids including GGpp. Sterols induce binding of UBIAD1 to reductase, inhibiting its ERAD. Geranylgeraniol (GGOH), the alcohol derivative of GGpp, disrupts this binding and thereby stimulates ERAD of reductase and translocation of UBIAD1 to Golgi. We now show that overexpression of Type 1 polyisoprenoid diphosphate phosphatase (PDP1), which dephosphorylates GGpp and other isoprenyl pyrophosphates to corresponding isoprenols, abolishes protein geranylgeranylation as well as GGOH-induced ERAD of reductase and Golgi transport of UBIAD1. Conversely, these reactions are enhanced in the absence of PDP1. Our findings indicate PDP1-mediated hydrolysis of GGpp significantly contributes to a feedback mechanism that maintains optimal intracellular levels of the nonsterol isoprenoid.
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Affiliation(s)
- Rania Elsabrouty
- Department of Molecular Genetics, University of Texas Southwestern Medical Center at Dallas, Dallas, United States
| | - Youngah Jo
- Department of Molecular Genetics, University of Texas Southwestern Medical Center at Dallas, Dallas, United States
| | - Seonghwan Hwang
- Department of Molecular Genetics, University of Texas Southwestern Medical Center at Dallas, Dallas, United States
| | - Dong-Jae Jun
- Department of Molecular Genetics, University of Texas Southwestern Medical Center at Dallas, Dallas, United States
| | - Russell A DeBose-Boyd
- Department of Molecular Genetics, University of Texas Southwestern Medical Center at Dallas, Dallas, United States
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Vitamin K in COVID-19—Potential Anti-COVID-19 Properties of Fermented Milk Fortified with Bee Honey as a Natural Source of Vitamin K and Probiotics. FERMENTATION 2021. [DOI: 10.3390/fermentation7040202] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Vitamin K deficiency is evident in severe and fatal COVID-19 patients. It is associated with the cytokine storm, thrombotic complications, multiple organ damage, and high mortality, suggesting a key role of vitamin K in the pathology of COVID-19. To support this view, we summarized findings reported from machine learning studies, molecular simulation, and human studies on the association between vitamin K and SARS-CoV-2. We also investigated the literature for the association between vitamin K antagonists (VKA) and the prognosis of COVID-19. In addition, we speculated that fermented milk fortified with bee honey as a natural source of vitamin K and probiotics may protect against COVID-19 and its severity. The results reported by several studies emphasize vitamin K deficiency in COVID-19 and related complications. However, the literature on the role of VKA and other oral anticoagulants in COVID-19 is controversial: some studies report reductions in (intensive care unit admission, mechanical ventilation, and mortality), others report no effect on mortality, while some studies report higher mortality among patients on chronic oral anticoagulants, including VKA. Supplementing fermented milk with honey increases milk peptides, bacterial vitamin K production, and compounds that act as potent antioxidants: phenols, sulforaphane, and metabolites of lactobacilli. Lactobacilli are probiotic bacteria that are suggested to interfere with various aspects of COVID-19 infection ranging from receptor binding to metabolic pathways involved in disease prognosis. Thus, fermented milk that contains natural honey may be a dietary manipulation capable of correcting nutritional and immune deficiencies that predispose to and aggravate COVID-19. Empirical studies are warranted to investigate the benefits of these compounds.
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Effects of Extracellular Osteoanabolic Agents on the Endogenous Response of Osteoblastic Cells. Cells 2021; 10:cells10092383. [PMID: 34572032 PMCID: PMC8471159 DOI: 10.3390/cells10092383] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/31/2021] [Accepted: 09/07/2021] [Indexed: 12/27/2022] Open
Abstract
The complex multidimensional skeletal organization can adapt its structure in accordance with external contexts, demonstrating excellent self-renewal capacity. Thus, optimal extracellular environmental properties are critical for bone regeneration and inextricably linked to the mechanical and biological states of bone. It is interesting to note that the microstructure of bone depends not only on genetic determinants (which control the bone remodeling loop through autocrine and paracrine signals) but also, more importantly, on the continuous response of cells to external mechanical cues. In particular, bone cells sense mechanical signals such as shear, tensile, loading and vibration, and once activated, they react by regulating bone anabolism. Although several specific surrounding conditions needed for osteoblast cells to specifically augment bone formation have been empirically discovered, most of the underlying biomechanical cellular processes underneath remain largely unknown. Nevertheless, exogenous stimuli of endogenous osteogenesis can be applied to promote the mineral apposition rate, bone formation, bone mass and bone strength, as well as expediting fracture repair and bone regeneration. The following review summarizes the latest studies related to the proliferation and differentiation of osteoblastic cells, enhanced by mechanical forces or supplemental signaling factors (such as trace metals, nutraceuticals, vitamins and exosomes), providing a thorough overview of the exogenous osteogenic agents which can be exploited to modulate and influence the mechanically induced anabolism of bone. Furthermore, this review aims to discuss the emerging role of extracellular stimuli in skeletal metabolism as well as their potential roles and provide new perspectives for the treatment of bone disorders.
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Mandatori D, Penolazzi L, Pelusi L, Lambertini E, Michelucci F, Porreca A, Cerritelli P, Pipino C, Di Iorio A, Bruni D, Di Nicola M, Buda R, Piva R, Pandolfi A. Three-Dimensional Co-Culture System of Human Osteoblasts and Osteoclast Precursors from Osteoporotic Patients as an Innovative Model to Study the Role of Nutrients: Focus on Vitamin K2. Nutrients 2021; 13:nu13082823. [PMID: 34444982 PMCID: PMC8399348 DOI: 10.3390/nu13082823] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/03/2021] [Accepted: 08/14/2021] [Indexed: 01/03/2023] Open
Abstract
Several natural compounds, such as vitamin K2, have been highlighted for their positive effects on bone metabolism. It has been proposed that skeletal disorders, such as osteoporosis, may benefit from vitamin K2-based therapies or its regular intake. However, further studies are needed to better clarify the effects of vitamin K2 in bone disorders. To this aim, we developed in vitro a three-dimensional (3D) cell culture system one step closer to the bone microenvironment based on co-culturing osteoblasts and osteoclasts precursors obtained from bone specimens and peripheral blood of the same osteoporotic patient, respectively. Such a 3-D co-culture system was more informative than the traditional 2-D cell cultures when responsiveness to vitamin K2 was analyzed, paving the way for data interpretation on single patients. Following this approach, the anabolic effects of vitamin K2 on the osteoblast counterpart were found to be correlated with bone turnover markers measured in osteoporotic patients’ sera. Overall, our data suggest that co-cultured osteoblasts and osteoclast precursors from the same osteoporotic patient may be suitable to generate an in vitro 3-D experimental model that potentially reflects the individual’s bone metabolism and may be useful to predict personal responsiveness to nutraceutical or drug molecules designed to positively affect bone health.
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Affiliation(s)
- Domitilla Mandatori
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” Chieti-Pescara, 66100 Chieti, Italy; (D.M.); (L.P.); (A.P.); (C.P.); (M.D.N.)
- Center for Advanced Studies and Technology (C.A.S.T.), University “G. d’Annunzio” Chieti-Pescara, 66100 Chieti, Italy
| | - Letizia Penolazzi
- Department of Neuroscience and Rehabilitation, University of Ferrara, 44121 Ferrara, Italy; (L.P.); (E.L.)
| | - Letizia Pelusi
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” Chieti-Pescara, 66100 Chieti, Italy; (D.M.); (L.P.); (A.P.); (C.P.); (M.D.N.)
- Center for Advanced Studies and Technology (C.A.S.T.), University “G. d’Annunzio” Chieti-Pescara, 66100 Chieti, Italy
| | - Elisabetta Lambertini
- Department of Neuroscience and Rehabilitation, University of Ferrara, 44121 Ferrara, Italy; (L.P.); (E.L.)
| | - Francesca Michelucci
- Department of Medicine and Aging Sciences, University “G. d’Annunzio” Chieti-Pescara, 66100 Chieti, Italy; (F.M.); (P.C.); (A.D.I.); (D.B.); (R.B.)
| | - Annamaria Porreca
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” Chieti-Pescara, 66100 Chieti, Italy; (D.M.); (L.P.); (A.P.); (C.P.); (M.D.N.)
| | - Pietro Cerritelli
- Department of Medicine and Aging Sciences, University “G. d’Annunzio” Chieti-Pescara, 66100 Chieti, Italy; (F.M.); (P.C.); (A.D.I.); (D.B.); (R.B.)
| | - Caterina Pipino
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” Chieti-Pescara, 66100 Chieti, Italy; (D.M.); (L.P.); (A.P.); (C.P.); (M.D.N.)
- Center for Advanced Studies and Technology (C.A.S.T.), University “G. d’Annunzio” Chieti-Pescara, 66100 Chieti, Italy
| | - Angelo Di Iorio
- Department of Medicine and Aging Sciences, University “G. d’Annunzio” Chieti-Pescara, 66100 Chieti, Italy; (F.M.); (P.C.); (A.D.I.); (D.B.); (R.B.)
| | - Danilo Bruni
- Department of Medicine and Aging Sciences, University “G. d’Annunzio” Chieti-Pescara, 66100 Chieti, Italy; (F.M.); (P.C.); (A.D.I.); (D.B.); (R.B.)
| | - Marta Di Nicola
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” Chieti-Pescara, 66100 Chieti, Italy; (D.M.); (L.P.); (A.P.); (C.P.); (M.D.N.)
| | - Roberto Buda
- Department of Medicine and Aging Sciences, University “G. d’Annunzio” Chieti-Pescara, 66100 Chieti, Italy; (F.M.); (P.C.); (A.D.I.); (D.B.); (R.B.)
| | - Roberta Piva
- Department of Neuroscience and Rehabilitation, University of Ferrara, 44121 Ferrara, Italy; (L.P.); (E.L.)
- Correspondence: (R.P.); (A.P.); Tel.: +39-0532-974405 (R.P.); +39-0871-541425 (A.P.)
| | - Assunta Pandolfi
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” Chieti-Pescara, 66100 Chieti, Italy; (D.M.); (L.P.); (A.P.); (C.P.); (M.D.N.)
- Center for Advanced Studies and Technology (C.A.S.T.), University “G. d’Annunzio” Chieti-Pescara, 66100 Chieti, Italy
- Correspondence: (R.P.); (A.P.); Tel.: +39-0532-974405 (R.P.); +39-0871-541425 (A.P.)
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The Role of Dietary Nutrients in Peripheral Nerve Regeneration. Int J Mol Sci 2021; 22:ijms22147417. [PMID: 34299037 PMCID: PMC8303934 DOI: 10.3390/ijms22147417] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 07/07/2021] [Indexed: 12/16/2022] Open
Abstract
Peripheral nerves are highly susceptible to injuries induced from everyday activities such as falling or work and sport accidents as well as more severe incidents such as car and motorcycle accidents. Many efforts have been made to improve nerve regeneration, but a satisfactory outcome is still unachieved, highlighting the need for easy to apply supportive strategies for stimulating nerve growth and functional recovery. Recent focus has been made on the effect of the consumed diet and its relation to healthy and well-functioning body systems. Normally, a balanced, healthy daily diet should provide our body with all the needed nutritional elements for maintaining correct function. The health of the central and peripheral nervous system is largely dependent on balanced nutrients supply. While already addressed in many reviews with different focus, we comprehensively review here the possible role of different nutrients in maintaining a healthy peripheral nervous system and their possible role in supporting the process of peripheral nerve regeneration. In fact, many dietary supplements have already demonstrated an important role in peripheral nerve development and regeneration; thus, a tailored dietary plan supplied to a patient following nerve injury could play a non-negotiable role in accelerating and promoting the process of nerve regeneration.
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Fusaro M, Cianciolo G, Evenepoel P, Schurgers L, Plebani M. Vitamin K in CKD Bone Disorders. Calcif Tissue Int 2021; 108:476-485. [PMID: 33409597 DOI: 10.1007/s00223-020-00792-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 12/05/2020] [Indexed: 01/07/2023]
Abstract
Vitamin K is principally known because it is involved in blood coagulation. Furthermore, epidemiological studies showed that its deficit was associated with increased fragility fractures, vascular calcification and mortality. There are two main types of vitamin K vitamers: Phylloquinone (or PK) and Menaquinones (MKn). Vitamin K acts both as coenzyme of y-glutamyl carboxylase (GGCX) transforming undercarboxylated in carboxylated vitamin K-dependent proteins (e.g., Osteocalcin and Matrix Gla Protein) and as a ligand of the nuclear steroid and xenobiotic receptor (SXR) (in murine species Pregnane X Receptor: PXR), expressed in osteoblasts. It has been highlighted that the uremic state is a condition of greater vitamin K deficiency than the general population with resulting higher prevalence of bone fractures, vascular calcifications and mortality. The purpose of this literature review is to evaluate the protective role of Vitamin K in bone health in CKD patients.
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Affiliation(s)
- M Fusaro
- National Research Council (CNR), Institute of Clinical Physiology (IFC), Pisa Via G. Moruzzi 1, 56124, Pisa, PI, Italy.
- Department of Medicine, University of Padova, Via Giustiniani 2, 35128, Padova, PD, Italy.
| | - G Cianciolo
- Department of Experimental Diagnostic and Specialty Medicine (DIMES), Nephrology, Dialysis and Renal Transplant Unit, S. Orsola Hospital, University of Bologna, Bologna, Italy
| | - P Evenepoel
- Laboratory of Nephrology, Department of Immunology and Microbiology, KU Leuven, Leuven, Belgium
| | - L Schurgers
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, 6200MD, Maastricht, The Netherlands
| | - M Plebani
- Laboratory Medicine Unit, Department of Medicine, University of Padua, Padua, Italy
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20
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Lipocalin 2 serum levels correlate with age and bone turnover biomarkers in healthy subjects but not in postmenopausal osteoporotic women. Bone Rep 2021; 14:101059. [PMID: 34026950 PMCID: PMC8121999 DOI: 10.1016/j.bonr.2021.101059] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 03/16/2021] [Accepted: 03/24/2021] [Indexed: 12/25/2022] Open
Abstract
Purpose Lipocalin 2 (LCN2) is an adipokine involved in many physiological functions, including bone metabolism. We previously demonstrated its implication in mouse models of mechanical unloading-induced osteoporosis and in a cohort of bed rest volunteers. We therefore aimed at studying its involvement in postmenopausal osteoporosis. Methods We measured serum LCN2 and correlated its levels to Dickkopf WNT Signaling Pathway Inhibitor 1 (DKK1), Tartrate Resistant Acid Phosphatase 5B (TRAcP5B), sclerostin, urinary N-terminal telopeptide of type I collagen (NTX), serum C-terminal telopeptide of type I collagen (CTX), parathyroid hormone and vitamin K by ELISA performed in a cohort of younger (50–65 years) and older (66–90 years) osteoporotic women in comparison to healthy subjects. A cohort of male healthy and osteoarthritic patients was also included. Sobel mediation analysis was used to test indirect associations among age, LCN2 and DKK1 or NTX. Results LCN2 levels were unchanged in osteoporotic and in osteoarthritis patients when compared to healthy subjects and did not correlate with BMD. However, serum LCN2 correlated with age in healthy women (R = 0.44; P = 0.003) and men (R = 0.5; P = 0.001) and serum concentrations of DKK1 (R = 0.47; P = 0.003) and urinary NTX (R = 0.34; P = 0.04). Sobel mediation analysis showed that LCN2 mediates an indirect relationship between age and DKK1 (P = 0.02), but not with NTX, in healthy subjects. Conclusions Taken together, the results suggest a hitherto unknown association between LCN2, DKK1 and age in healthy individuals, but not in postmenopausal osteoporotic women.
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Key Words
- BALP, bone-specific alkaline phosphatase
- BMD, bone mineral density
- BMI, body mass index
- CTX, C-terminal telopeptide of type I collagen
- DKK1
- DKK1, Dickkopf WNT Signaling Pathway Inhibitor 1
- IL, interleukin
- LCN2, lipocalin 2
- Lipocalin-2
- NGAL
- NTX, N-terminal telopeptide of type I collagen
- NfκB, nuclear factor kappa-B
- Osteoarthritis
- Osteoporosis
- PTH, parathyroid hormone
- RANKL, receptor activator of nuclear factor kappa-B
- TNF, tumor necrosis factor
- TRAcP5B, tartrate-resistant acid phosphatase 5B
- Wnt
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21
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Arivalagan M, Karunakaran G, Roy TK, Dinsha M, Sindhu BC, Shilpashree VM, Satisha GC, Shivashankara KS. Biochemical and nutritional characterization of dragon fruit (Hylocereus species). Food Chem 2021; 353:129426. [PMID: 33774520 DOI: 10.1016/j.foodchem.2021.129426] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 01/11/2021] [Accepted: 02/18/2021] [Indexed: 02/07/2023]
Abstract
Nutritional and biochemical composition of dragon fruit (Hylocereus) species H. undatus (fruits with white pulp and pink skin), and H. polyrhizus (fruits with red pulp and pink skin) were investigated to develop the nutritional composition data for dragon fruit and compare the difference between H. undatus and H. polyrhizus. The pH, TSS, total sugar, moisture, ash, protein, and dietary fibre content varied between 4.8 and 5.4, 8-12%, 5.13-7.06%, 82-85%, 0.7-0.85%, 0.90-1.1% and 0.8-1.0%, respectively. Total phenolics and flavonoids content varied between 25 and 55 mg GAE and 15-35 mg CE per 100 g, respectively. H. polyrhizus have a significantly high quantum of phenolics and antioxidant potential than H. undatus. 100 g fruit contained about 120-200 mg K, 30-45 mg Mg, 20-45 mg Ca, 20-35 mg P, 0.70-1.5 mg Fe, and 0.20-0.40 mg Zn. Vitamin C was found maximum (6 mg/100 g), followed by vitamin E (150 µg), pantothenic acid (50 µg), and vitamin K1 (25 µg). It is an ideal fruit for maintaining good health as it has low calories.
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Affiliation(s)
- M Arivalagan
- Division of Basic Sciences, ICAR-Indian Institute of Horticultural Research, Hesaraghatta Lake Post, Bengaluru, Karnataka 560 089, India.
| | - G Karunakaran
- Division of Fruit Crops, ICAR-Indian Institute of Horticultural Research, Hesaraghatta Lake Post, Bengaluru, Karnataka 560 089, India.
| | - T K Roy
- Division of Basic Sciences, ICAR-Indian Institute of Horticultural Research, Hesaraghatta Lake Post, Bengaluru, Karnataka 560 089, India
| | - M Dinsha
- Division of Basic Sciences, ICAR-Indian Institute of Horticultural Research, Hesaraghatta Lake Post, Bengaluru, Karnataka 560 089, India
| | - B C Sindhu
- Division of Natural Resources, ICAR-Indian Institute of Horticultural Research, Hesaraghatta Lake Post, Bengaluru, Karnataka 560 089, India
| | - V M Shilpashree
- Division of Natural Resources, ICAR-Indian Institute of Horticultural Research, Hesaraghatta Lake Post, Bengaluru, Karnataka 560 089, India
| | - G C Satisha
- Division of Natural Resources, ICAR-Indian Institute of Horticultural Research, Hesaraghatta Lake Post, Bengaluru, Karnataka 560 089, India
| | - K S Shivashankara
- Division of Basic Sciences, ICAR-Indian Institute of Horticultural Research, Hesaraghatta Lake Post, Bengaluru, Karnataka 560 089, India
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Kuang X, Liu C, Guo X, Li K, Deng Q, Li D. The combination effect of vitamin K and vitamin D on human bone quality: a meta-analysis of randomized controlled trials. Food Funct 2021; 11:3280-3297. [PMID: 32219282 DOI: 10.1039/c9fo03063h] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Previous studies did not draw a consistent conclusion about the effects of vitamin K combined with vitamin D on human skeletal quality. METHOD AND FINDINGS A comprehensive search on Web of Science, PubMed, Embase and the Cochrane Library (from 1950 to February 2020) and bibliographies of relevant articles was undertaken, with the meta-analysis of eight randomized controlled trials (RCTs) including a total of 971 subjects. Vitamin K combined with vitamin D significantly increased the total bone mineral density (BMD): the pooled effect size was 0.316 [95% CI (confidence interval), 0.031 to 0.601]. A significant decrease in undercarboxylated osteocalcin (-0.945, -1.113 to -0.778) can be observed with the combination of vitamin K and D. Simultaneously, subgroup analysis showed that K2 or vitamin K (not specified) supplement was less than 500 μg d-1, which when combined with vitamin D can significantly increase the total BMD compared with the control group fed a normal diet or the group with no treatment (0.479, 0.101 to 0.858 and 0.570, 0.196 to 0.945). CONCLUSIONS The combination of vitamin K and D can significantly increase the total BMD and significantly decrease undercarboxylated osteocalcin, and a more favorable effect is expected when vitamin K2 is used.
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Affiliation(s)
- Xiaotong Kuang
- Institute of Nutrition and Health, Qingdao University, Qingdao, China.
| | - Chunxiao Liu
- Institute of Nutrition and Health, Qingdao University, Qingdao, China.
| | - Xiaofei Guo
- Institute of Nutrition and Health, Qingdao University, Qingdao, China.
| | - Kelei Li
- Institute of Nutrition and Health, Qingdao University, Qingdao, China.
| | - Qingxue Deng
- Institute of Nutrition and Health, Qingdao University, Qingdao, China.
| | - Duo Li
- Institute of Nutrition and Health, Qingdao University, Qingdao, China.
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Ozaki D, Kubota R, Maeno T, Abdelhakim M, Hitosugi N. Association between gut microbiota, bone metabolism, and fracture risk in postmenopausal Japanese women. Osteoporos Int 2021; 32:145-156. [PMID: 33241467 PMCID: PMC7755620 DOI: 10.1007/s00198-020-05728-y] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 11/02/2020] [Indexed: 02/07/2023]
Abstract
INTRODUCTION We investigated the relationship between gut microbiota composition and osteoporosis/fracture risk in Japanese postmenopausal women using 16S rRNA gene sequencing, FRAX, bone mineral density, biochemical bone parameters, and a self-administered questionnaire. Variation in abundance of specific microbiota was found to be significantly associated with fracture risk and vitamin K levels. Gut microbiota data with respect to bone metabolism and fracture risk is limited. Vitamin K is produced by certain intestinal bacteria and has been reported to play a role in maintaining bone quality. PURPOSE We investigated relationships among gut microbiota composition, bone metabolism, and fracture risk in postmenopausal Japanese women. METHODS Bone mineral density (BMD) was evaluated in 38 postmenopausal women (mean age 62.9 years) using forearm dual-energy X-ray absorptiometry. We collected and analyzed serum bone turnover markers (vitamin K fraction and tartrate-resistant acid phosphatase 5b; TRACP-5b), gut microbiota profiling (16S rRNA gene sequencing), and self-administered questionnaire data, including fracture history and vitamin K intake. Vitamin K2, BMD, and TRACP-5b data were divided into high- and low-level groups using cutoff values of 0.06 ng/mL, 87.05%, and 420 mU/dL, respectively; the proportions of bacteria were analyzed. Fracture incidence and relative risk were investigated for each bacterium. RESULTS The genus Bacteroides was predominant in the high vitamin K2 group (29.73% vs 21.58%, P = 0.022). Fracture incidence was significantly higher in the low Bacteroides group, with a 5.6-times higher risk ratio of fracture history. The family Rikenellaceae was more abundant in the low BMD group and more abundant in the high TRACP-5b group (2.15% vs 0.82%, P = 0.004; 2.38% vs 1.12%, P = 0.013, respectively). CONCLUSION Bacteroides and Rikenellaceae may be involved in bone metabolism and fracture risk. Further investigations of the underlying microbiota-related pathways in bone metabolism may reveal treatment strategies, and facilitate the prevention of osteoporosis.
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Affiliation(s)
- D Ozaki
- Musashiurawa Orthopedics and Internal Medicine Clinic, Musashiurawa Medical Center, Saitama, Japan.
| | - R Kubota
- Musashiurawa Orthopedics and Internal Medicine Clinic, Musashiurawa Medical Center, Saitama, Japan
| | - T Maeno
- Musashi Pharmacy, Musashiurawa Medical Center, Saitama, Japan
| | - M Abdelhakim
- Department of Plastic, Reconstructive, and Aesthetic Surgery, Nippon Medical School, Tokyo, Japan
| | - N Hitosugi
- Muse Dermatology & Pain Clinic, Musashiurawa Medical Center, Saitama, Japan
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Fusaro M, Cianciolo G, Brandi ML, Ferrari S, Nickolas TL, Tripepi G, Plebani M, Zaninotto M, Iervasi G, La Manna G, Gallieni M, Vettor R, Aghi A, Gasperoni L, Giannini S, Sella S, M. Cheung A. Vitamin K and Osteoporosis. Nutrients 2020; 12:nu12123625. [PMID: 33255760 PMCID: PMC7760385 DOI: 10.3390/nu12123625] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/31/2020] [Accepted: 11/14/2020] [Indexed: 12/12/2022] Open
Abstract
Vitamin K acts as a coenzyme of carboxylase, catalyzing the carboxylation of several vitamin K dependent proteins. Beyond its well-known effects on blood coagulation, it also exerts relevant effects on bone and the vascular system. In this review, we point out the relevance of an adequate vitamin K intake to obtain sufficient levels of carboxylated (active form) vitamin K dependent proteins (such as Osteocalcin and matrix Gla protein) to prevent bone health. Another bone-related action of Vitamin K is being a ligand of the nuclear steroid and xenobiotic receptor (SXR). We also discuss the recommended intake, deficiency, and assessment of vitamin K. Furthermore, we review the few available studies that have as pre-specified outcome bone fractures, indicating that we need more clinical studies to confirm that vitamin K is a potential therapeutic agent for bone fractures.
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Affiliation(s)
- Maria Fusaro
- National Research Council (CNR), Institute of Clinical Physiology (IFC), 56124 Pisa, Italy; (M.F.); (G.I.)
- Department of Medicine, University of Padova, 35128 Padova, Italy;
| | - Giuseppe Cianciolo
- Department of Experimental Diagnostic and Specialty Medicine (DIMES), Nephrology, Dialysis and Renal Transplant Unit, S. Orsola Hospital, University of Bologna, 40138 Bologna, Italy; (G.C.); (G.L.M.); (L.G.)
| | - Maria Luisa Brandi
- Department of Biomedical Experimental and Clinical Sciences “Mario Serio”, University of Florence, 50139 Florence, Italy;
| | - Serge Ferrari
- Department of Medicine, Service of Bone Diseases, Faculty of Medicine and Geneva University Hospital, 1205 Geneva, Switzerland;
| | - Thomas L. Nickolas
- Department of Medicine, Division of Nephrology, Columbia University, New York, NY 10032, USA;
| | - Giovanni Tripepi
- CNR-IFC, Clinical Epidemiology of Renal Diseases and Hypertension, Ospedali Riuniti, 89124 Reggio Calabria, Italy;
| | - Mario Plebani
- Laboratory Medicine Unit, Department of Medicine, University of Padua, 35128 Padua, Italy; (M.P.); (M.Z.)
| | - Martina Zaninotto
- Laboratory Medicine Unit, Department of Medicine, University of Padua, 35128 Padua, Italy; (M.P.); (M.Z.)
| | - Giorgio Iervasi
- National Research Council (CNR), Institute of Clinical Physiology (IFC), 56124 Pisa, Italy; (M.F.); (G.I.)
| | - Gaetano La Manna
- Department of Experimental Diagnostic and Specialty Medicine (DIMES), Nephrology, Dialysis and Renal Transplant Unit, S. Orsola Hospital, University of Bologna, 40138 Bologna, Italy; (G.C.); (G.L.M.); (L.G.)
| | - Maurizio Gallieni
- Department of Biomedical and Clinical Sciences ‘Luigi Sacco’, Università di Milano, 20157 Milano, Italy;
| | - Roberto Vettor
- Department of Medicine, University of Padova, 35128 Padova, Italy;
| | - Andrea Aghi
- Department of Medicine, Clinica Medica 1, University of Padua, 35128 Padua, Italy; (A.A.); (S.G.); (S.S.)
| | - Lorenzo Gasperoni
- Department of Experimental Diagnostic and Specialty Medicine (DIMES), Nephrology, Dialysis and Renal Transplant Unit, S. Orsola Hospital, University of Bologna, 40138 Bologna, Italy; (G.C.); (G.L.M.); (L.G.)
| | - Sandro Giannini
- Department of Medicine, Clinica Medica 1, University of Padua, 35128 Padua, Italy; (A.A.); (S.G.); (S.S.)
| | - Stefania Sella
- Department of Medicine, Clinica Medica 1, University of Padua, 35128 Padua, Italy; (A.A.); (S.G.); (S.S.)
| | - Angela M. Cheung
- Department of Medicine, University Health Network, University of Toronto, 200 Elizabeth Street, Eaton North 7-221, Toronto, ON M5G 2C4, Canada
- Correspondence:
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Abstract
Pregnancy is a time where expectant mothers often focus on their diet to improve their own health and to preserve the future health of their children. There is much conflicting information in the public domain about the safety and/or efficacy of nutritional supplements during pregnancy. Despite this, the market for supplements is growing. This review discusses the roles of critical nutrients in pregnancy and the available evidence on the use of supplements to reduce risks and improve maternal and fetal outcomes. Recommendations are made for pregnant women, taking into account safety data and tolerable upper intakes set for pregnant women. It is important for dieticians, nutritionists, physicians, and other healthcare providers to be able to offer accurate and evidence-based advice on supplement use in pregnancy. Routine supplementation may not be necessary for all, but individuals at risk are identified.
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Fusaro M, Cosmai L, Evenepoel P, Nickolas TL, Cheung AM, Aghi A, Tripepi G, Plebani M, Iervasi G, Vettor R, Zaninotto M, Ravera M, Foramitti M, Giannini S, Sella S, Gallieni M. Vitamin K and Kidney Transplantation. Nutrients 2020; 12:nu12092717. [PMID: 32899501 PMCID: PMC7551925 DOI: 10.3390/nu12092717] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 08/28/2020] [Accepted: 09/01/2020] [Indexed: 02/06/2023] Open
Abstract
The assessment of the vitamin K status and its effects on clinical outcomes in kidney transplantation (KT) patients has sparked interest, but it is still largely unfulfilled. In part, this is due to difficulties in laboratory measurements of vitamin K, especially K2 vitamers. Vitamin K status is currently best assessed by measuring undercarboxylated vitamin-K-dependent proteins. The relative contribution of vitamin K1 and K2 to the health status of the general population and CKD (chronic kidney disease) patients, including KT patients, is also poorly studied. Through a complete and first review of the existing literature, we summarize the current knowledge of vitamin K pathophysiology and its potential role in preventing KT complications and improving organ survival. A specific focus is placed on cardiovascular complications, bone fractures, and the relationship between vitamin K and cancer. Vitamin K deficiency could determine adverse outcomes, and KT patients should be better studied for vitamin K assessment and modalities of effective therapeutic approaches.
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Affiliation(s)
- Maria Fusaro
- National Research Council (CNR), Institute of Clinical Physiology (IFC), 56124 Pisa, Italy;
- Department of Medicine, University of Padova, 35128 Padova, Italy;
- Correspondence:
| | - Laura Cosmai
- Nephrology Unit, ASST Fatebenefratelli Sacco, 20157 Milano, Italy; (L.C.); (M.G.)
| | - Pieter Evenepoel
- Laboratory of Nephrology, Department of Immunology and Microbiology, B-3000 Leuven, Belgium;
| | - Thomas L. Nickolas
- Division of Nephrology, Department of Medicine, Columbia University, New York City, NY 10032, USA;
| | - Angela M. Cheung
- Department of Medicine, University of Toronto, Toronto, ON M5S, Canada;
| | - Andrea Aghi
- Department of Medicine, Clinica Medica 1, University of Padua, 35128 Padova, PD, Italy; (A.A.); (S.G.); (S.S.)
| | - Giovanni Tripepi
- CNR-IFC, Clinical Epidemiology of Renal Diseases and Hypertension, Ospedali Riuniti, 89124 Reggio Calabria, Italy;
| | - Mario Plebani
- Laboratory Medicine Unit, Department of Medicine, University of Padua, 35128 Padova, Italy; (M.P.); (M.Z.)
| | - Giorgio Iervasi
- National Research Council (CNR), Institute of Clinical Physiology (IFC), 56124 Pisa, Italy;
| | - Roberto Vettor
- Department of Medicine, University of Padova, 35128 Padova, Italy;
| | - Martina Zaninotto
- Laboratory Medicine Unit, Department of Medicine, University of Padua, 35128 Padova, Italy; (M.P.); (M.Z.)
| | | | - Marina Foramitti
- Divisione di Nefrologia e Dialisi, Renal Department, ASST-Cremona, Largo Priori 1, 26100 Cremona, Italy;
| | - Sandro Giannini
- Department of Medicine, Clinica Medica 1, University of Padua, 35128 Padova, PD, Italy; (A.A.); (S.G.); (S.S.)
| | - Stefania Sella
- Department of Medicine, Clinica Medica 1, University of Padua, 35128 Padova, PD, Italy; (A.A.); (S.G.); (S.S.)
| | - Maurizio Gallieni
- Nephrology Unit, ASST Fatebenefratelli Sacco, 20157 Milano, Italy; (L.C.); (M.G.)
- Department of Biomedical and Clinical Sciences ‘Luigi Sacco’, Università di Milano, 20157 Milano, Italy
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Stacchiotti V, Rezzi S, Eggersdorfer M, Galli F. Metabolic and functional interplay between gut microbiota and fat-soluble vitamins. Crit Rev Food Sci Nutr 2020; 61:3211-3232. [PMID: 32715724 DOI: 10.1080/10408398.2020.1793728] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Gut microbiota is a complex ecosystem seen as an extension of human genome. It represents a major metabolic interface of interaction with food components and xenobiotics in the gastrointestinal (GI) environment. In this context, the advent of modern bacterial genome sequencing technology has enabled the identification of dietary nutrients as key determinants of gut microbial ecosystem able to modulate the host-microbiome symbiotic relationship and its effects on human health. This article provides a literature review on functional and molecular interactions between a specific group of lipids and essential nutrients, e.g., fat-soluble vitamins (FSVs), and the gut microbiota. A two-way relationship appears to emerge from the available literature with important effects on human metabolism, nutrition, GI physiology and immune function. First, FSV directly or indirectly modify the microbial composition involving for example immune system-mediated and/or metabolic mechanisms of bacterial growth or inhibition. Second, the gut microbiota influences at different levels the synthesis, metabolism and transport of FSV including their bioactive metabolites that are either introduced with the diet or released in the gut via entero-hepatic circulation. A better understanding of these interactions, and of their impact on intestinal and metabolic homeostasis, will be pivotal to design new and more efficient strategies of disease prevention and therapy, and personalized nutrition.
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Affiliation(s)
- Valentina Stacchiotti
- Micronutrient Vitamins and Lipidomics Lab, Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Serge Rezzi
- Swiss Vitamin Institute, Epalinges, Switzerland
| | - Manfred Eggersdorfer
- Department of Internal Medicine, University Medical Center Groningen, Groningen, the Netherlands
| | - Francesco Galli
- Micronutrient Vitamins and Lipidomics Lab, Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
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Trabecular bone score (TBS) and bone mineral density in patients with long-term therapy with warfarin. Arch Osteoporos 2020; 15:102. [PMID: 32627100 DOI: 10.1007/s11657-020-00770-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 06/08/2020] [Indexed: 02/03/2023]
Abstract
UNLABELLED In this study, we compared patients using the anticoagulant warfarin for more than a year with a control group with similar characteristics but without using the drug. We demonstrated worse BMD and bone quality by trabecular bone score (TBS) in patients using warfarin for more than 1 year. PURPOSE Evaluate the bone mineral density (BMD) and the trabecular bone score (TBS) of patients taking warfarin for more than 1 year compared with a control group. METHODS Male patients aged 25-65 years in warfarin use for more than 1 year were included. Patients answered a questionnaire regarding lifestyle habits and realized a dual X-ray densitometry (DXA) (lumbar spine and hip), and TBS was evaluated. RESULTS From the 96 patients invited, 33 patients accepted to participate and comprised the warfarin group (WG), and 3 were excluded. The control group (CG) was composed of 21 individuals matched by age and race. The mean age of WG was 57.0 ± 7.6 and in the CG 54.0 ± 10.6 years (p = 0.095). The BMD in WG was lower than that in the CG in all sites (spine p < 0.001, total hip p = 0.001, and femoral neck p = 0.005). A longer time of warfarin use increased the likelihood of having low BMD (OR = 1.239, CI 1.064-1.674, p = 0.01), whereas high BMI decreased it (OR = 0.732, CI 0.533-0.918, p = 0.03). The TBS was lower in WG than the CG (p = 0.04). Lower TBS was associated with hypertension in both groups and to the hip BMD (neck and total) (p < 0.005) in the WG. In the multivariate analysis, only hypertension (- 0.10, CI - 0.17 to - 0.03, p = 0.008) and total hip BMD ( 0.26, CI 0.07-0.46, p = 0.009) influenced TBS. CONCLUSION We demonstrated an association between worsening of BMD and bone quality in patients taking warfarin for more than 1 year.
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29
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Snoeck HW. Calcium regulation of stem cells. EMBO Rep 2020; 21:e50028. [PMID: 32419314 DOI: 10.15252/embr.202050028] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 03/14/2020] [Accepted: 04/03/2020] [Indexed: 12/14/2022] Open
Abstract
Pluripotent and post-natal, tissue-specific stem cells share functional features such as the capacity to differentiate into multiple lineages and to self-renew, and are endowed with specific cell maintenance mechanism as well as transcriptional and epigenetic signatures that determine stem cell identity and distinguish them from their progeny. Calcium is a highly versatile and ubiquitous second messenger that regulates a wide variety of cellular functions. Specific roles of calcium in stem cell niches and stem cell maintenance mechanisms are only beginning to be explored, however. In this review, I discuss stem cell-specific regulation and roles of calcium, focusing on its potential involvement in the intertwined metabolic and epigenetic regulation of stem cells.
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Affiliation(s)
- Hans-Willem Snoeck
- Columbia Center of Human Development, Columbia University Irving Medical Center, New York, NY, USA.,Division of Pulmonary Medicine, Allergy and Critical Care, Columbia University Irving Medical Center, New York, NY, USA.,Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA.,Department of Microbiology and Immunology, Columbia University Irving Medical Center, New York, NY, USA
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Ravera M, Nickolas T, Plebani M, Iervasi G, Aghi A, Khairallah P, Gallieni M, Mereu MC, Giannini S, Sella S, Zaninotto M, Paoletti E, Bussalino E, Di Lullo L, Bellasi A, Cosmai L, Foramitti M, Malberti F, Brandi ML, Ferrari S, Tripepi G, Fusaro M. Overweight-obesity is associated with decreased vitamin K2 levels in hemodialysis patients. Clin Chem Lab Med 2020; 59:581-589. [PMID: 32383688 DOI: 10.1515/cclm-2020-0194] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 04/12/2020] [Indexed: 12/15/2022]
Abstract
OBJECTIVES Obesity is an important risk factor for morbidity and mortality. Vitamin K2 is involved in the production of bone and matrix amino acid g-carboxy-glutamic acid (Gla) proteins (vitamin K-dependent proteins [VKDPs]), regulating bone and vascular calcification (VC). Bone Gla protein (BGP) is involved both in bone mineralization and VCs. We assessed the relationships between vitamin K levels and body mass index (BMI) according to the hypothesis that the impact of BMI on mortality is partly driven by low vitamin K levels. METHODS The Vitamin K Italian (VIKI) study included 387 hemodialysis patients from 18 dialysis centers in Italy. We determined plasma levels of bone markers: vitamin K levels, VKDPs, vitamin 25(OH)D, alkaline phosphatase (ALP), parathyroid hormone (PTH), calcium (Ca), phosphorus (P) and routine biochemistry. BMI was classified into the following categories: underweight (BMI < 18.5 kg/m2), normal weight (18.5 ≤ BMI < 25 kg/m2), overweight (25 ≤ BMI < 30 kg/m2) and obese (BMI ≥ 30 kg/m2). RESULTS 45.2% of patients were overweight or obese. Stratification by BMI demonstrated lower median menaquinone-7 (MK7)/triglycerides levels in obese patients (0.42 ng/mg [0.19, 0.87], p = 0.005). BGP levels were lower in overweight and obese patients (152 mcg/L [83.2, 251] and 104 mcg/L [62.7, 230], p = <0.001). Furthermore, there was an inverse correlation between MK7/triglycerides levels and BMI (regression coefficient β = -0.159; p = 0.003). In multiple linear regression, there was an inverse relationship between BGP levels and BMI (β = - 0.119; p = 0.012). CONCLUSIONS These data are the first to report an inverse relationship between Vitamin K2 levels and BMI in hemodialysis patients. Further studies are needed to confirm these findings and to determine if lower levels of Vitamin K are related to greater morbidity and mortality in this at-risk population.
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Affiliation(s)
| | - Thomas Nickolas
- Department of Medicine, Division of Nephrology, Columbia University Medical Center, New York, NY, USA
| | - Mario Plebani
- Laboratory Medicine Unit, Department of Medicine, University of Padua, Padua, Italy
| | - Giorgio Iervasi
- National Research Council (CNR), Institute of Clinical Physiology (IFC), Pisa, Italy
| | - Andrea Aghi
- Department of Medicine, Clinica Medica 1, University of Padua, Padua, Italy
| | - Pascale Khairallah
- Department of Medicine, Division of Nephrology, Columbia University Medical Center, New York, NY, USA
| | - Maurizio Gallieni
- Nephrology and Dialysis Unit, ASST Fatebenefratelli Sacco, Department of Clinical and Biomedical Sciences 'Luigi Sacco', University of Milan, Milan, Italy
| | | | - Sandro Giannini
- Department of Medicine, Clinica Medica 1, University of Padua, Padua, Italy
| | - Stefania Sella
- Department of Medicine, Clinica Medica 1, University of Padua, Padua, Italy
| | - Martina Zaninotto
- Laboratory Medicine Unit, Department of Medicine, University of Padua, Padua, Italy
| | | | | | - Luca Di Lullo
- Department of Nephrology and Dialysis, Parodi-Delfino Hospital, Colleferro, Rome, Italy
| | - Antonio Bellasi
- Department of Research, Innovation, Brand Reputation, Bergamo Hospital, ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Laura Cosmai
- Nephrology and Dialysis Unit, San Carlo Borromeo Hospital, ASST Santi Paolo e Carlo, Milan, Italy
| | | | - Fabio Malberti
- Nephrology and Dialysis Unit, ASST Cremona, Cremona, Italy
| | - Maria Luisa Brandi
- Department of Biomedical Experimental and Clinical Sciences, University of Florence, Florence, Italy
| | - Serge Ferrari
- Department of Medicine, Service of Bone Diseases, Geneva University Hospital and Faculty of Medicine, Geneva, Switzerland
| | - Giovanni Tripepi
- CNR-IFC, Clinical Epidemiology of Renal Diseases and Hypertension, Ospedali Riuniti, Reggio Calabria, Italy
| | - Maria Fusaro
- National Research Council (CNR), Institute of Clinical Physiology (IFC), Pisa, Italy.,Department of Medicine, University of Padua, Via Giustiniani 2, 35128 Padova, PD, Italy
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Jo Y, Kim SS, Garland K, Fuentes I, DiCarlo LM, Ellis JL, Fu X, Booth SL, Evers BM, DeBose-Boyd RA. Enhanced ER-associated degradation of HMG CoA reductase causes embryonic lethality associated with Ubiad1 deficiency. eLife 2020; 9:54841. [PMID: 32118581 PMCID: PMC7069719 DOI: 10.7554/elife.54841] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 03/02/2020] [Indexed: 12/15/2022] Open
Abstract
UbiA prenyltransferase domain-containing protein-1 (UBIAD1) synthesizes the vitamin K subtype menaquinone-4 (MK-4). Previous studies in cultured cells (Schumacher et al., 2015) revealed that UBIAD1 also inhibits endoplasmic reticulum (ER)-associated degradation (ERAD) of ubiquitinated HMG CoA reductase (HMGCR), the rate-limiting enzyme of the mevalonate pathway that produces cholesterol and essential nonsterol isoprenoids. Gene knockout studies were previously attempted to explore the function of UBIAD1 in mice; however, homozygous germ-line elimination of the Ubiad1 gene caused embryonic lethality. We now report that homozygous deletion of Ubiad1 is produced in knockin mice expressing ubiquitination/ERAD-resistant HMGCR. Thus, embryonic lethality of Ubiad1 deficiency results from depletion of mevalonate-derived products owing to enhanced ERAD of HMGCR rather than from reduced synthesis of MK-4. These findings provide genetic evidence for the significance of UBIAD1 in regulation of cholesterol synthesis and offer the opportunity in future studies for the discovery of new physiological roles of MK-4.
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Affiliation(s)
- Youngah Jo
- Department of Molecular Genetics, University of Texas Southwestern Medical, Dallas, United States
| | - Steven S Kim
- Department of Molecular Genetics, University of Texas Southwestern Medical, Dallas, United States
| | - Kristina Garland
- Department of Molecular Genetics, University of Texas Southwestern Medical, Dallas, United States
| | - Iris Fuentes
- Department of Molecular Genetics, University of Texas Southwestern Medical, Dallas, United States
| | - Lisa M DiCarlo
- Department of Molecular Genetics, University of Texas Southwestern Medical, Dallas, United States
| | - Jessie L Ellis
- Center at Dallas and Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Somerville, United States
| | - Xueyan Fu
- Center at Dallas and Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Somerville, United States
| | - Sarah L Booth
- Center at Dallas and Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Somerville, United States
| | - Bret M Evers
- Department of Pathology, University of Texas Southwestern Medical, Dallas, United States
| | - Russell A DeBose-Boyd
- Department of Molecular Genetics, University of Texas Southwestern Medical, Dallas, United States
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32
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Kojima A, Ikehara S, Kamiya K, Kajita E, Sato Y, Kouda K, Tamaki J, Kagamimori S, Iki M. Natto Intake is Inversely Associated with Osteoporotic Fracture Risk in Postmenopausal Japanese Women. J Nutr 2020; 150:599-605. [PMID: 31825069 DOI: 10.1093/jn/nxz292] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/10/2019] [Accepted: 11/06/2019] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND The direct association between intake of Japanese fermented soybeans, namely natto, and bone mineral density (BMD) is known. However, the association with osteoporotic fractures has not been studied. OBJECTIVE This study aimed to investigate whether habitual natto intake is associated with a risk of osteoporotic fractures. METHODS This prospective cohort study included 1417 postmenopausal Japanese women who were enrolled in the Japanese Population-Based Osteoporosis cohort study in 1996, 1999, 2002, and 2006 and were aged ≥45 y at baseline. The intake of natto, tofu, and other soybean products was surveyed with use of a FFQ at baseline. Fractures were ascertained in follow-up surveys conducted in 1999, 2002, 2006, and 2011/2012. Osteoporotic fracture was the primary outcome and was defined as a clinical fracture occurring without strong external force, diagnosed with radiographs by a medical doctor. HRs with 95% CIs were estimated with Cox proportional hazard models. RESULTS During the 17,699 person-years of follow-up (median, 15.2 y), 172 women experienced osteoporotic fractures. After adjustment for age and BMD at the total hip, the HRs compared with those of < 1 pack (approximately 40 g)/wk natto intake were 0.72 (95% CI: 0.52, 0.98) and 0.51 (95% CI: 0.30, 0.87) for 1-6 and ≥7 packs/wk, respectively. After further adjustment for BMI, history of osteoporotic fractures, history of myocardial infarction or stroke, diabetes mellitus, current smoking, alcohol intake, frequency of tofu and other soybean product intakes, and dietary calcium intake, the HRs were 0.79 (95% CI: 0.56, 1.10) and 0.56 (95% CI: 0.32, 0.99) for 1-6 and ≥7 packs/wk, respectively. Frequency of tofu or other soybean product intakes had no association with the risk of osteoporotic fractures. CONCLUSIONS Habitual natto intake may be associated with a reduced risk of osteoporotic fractures independent of confounding factors, including BMD, in Japanese postmenopausal women. This trial was registered at umin.ac.jp as UMIN 000032869.
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Affiliation(s)
- Akane Kojima
- Department of Hygiene and Public Health, Osaka Medical College, Takatsuki City, Osaka, Japan
- Department of Health and Nutrition, Kyoto College of Nutritional & Medical Sciences, Kyoto City, Kyoto, Japan
| | - Satoyo Ikehara
- Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine,Suita City, Osaka, Japan
| | - Kuniyasu Kamiya
- Department of Hygiene and Public Health, Osaka Medical College, Takatsuki City, Osaka, Japan
| | - Etsuko Kajita
- Chukyo Gakuin University Faculty of Nursing, Mizunami City, Gifu, Japan
| | - Yuho Sato
- Department of Human Life, Jin-ai University, Echizen City, Fukui, Japan
| | - Katsuyasu Kouda
- Department of Hygiene and Public Health, Kansai Medical University, Hirakata City, Osaka, Japan
| | - Junko Tamaki
- Department of Hygiene and Public Health, Osaka Medical College, Takatsuki City, Osaka, Japan
| | | | - Masayuki Iki
- Department of Public Health, Kindai University Faculty of Medicine, Osaka-Sayama City, Osaka, Japan
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Vitamin K and Bone Health: A Review on the Effects of Vitamin K Deficiency and Supplementation and the Effect of Non-Vitamin K Antagonist Oral Anticoagulants on Different Bone Parameters. J Osteoporos 2019; 2019:2069176. [PMID: 31976057 PMCID: PMC6955144 DOI: 10.1155/2019/2069176] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 10/12/2019] [Accepted: 11/13/2019] [Indexed: 12/30/2022] Open
Abstract
Although known for its importance in the coagulation cascade, vitamin K has other functions. It is an essential vitamin for bone health, taking part in the carboxylation of many bone-related proteins, regulating genetic transcription of osteoblastic markers, and regulating bone reabsorption. Vitamin K deficiency is not uncommon, as deposits are scarce and dependent upon dietary supplementation and absorption. Vitamin K antagonist oral anticoagulants, which are prescribed to many patients, also induce vitamin K deficiency. Most studies find that low serum K1 concentrations, high levels of undercarboxylated osteocalcin (ucOC), and low dietary intake of both K1 and K2 are associated with a higher risk of fracture and lower BMD. Studies exploring the relationship between vitamin K supplementation and fracture risk also find that the risk of fracture is reduced with supplements, but high quality studies designed to evaluate fracture as its primary endpoint are needed. The reduction in risk of fracture with the use of non-vitamin K antagonist oral anticoagulants instead of warfarin is also of interest although once again, the available evidence offers disparate results. The scarce and limited evidence, including low quality studies reaching disparate conclusions, makes it impossible to extract solid conclusions on this topic, especially concerning the use of vitamin K supplements.
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34
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Vitamin K effects in human health: new insights beyond bone and cardiovascular health. J Nephrol 2019; 33:239-249. [DOI: 10.1007/s40620-019-00685-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 12/02/2019] [Indexed: 12/31/2022]
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Abstract
Metabolic bone diseases are a group of conditions that are common complications in patients with intestinal failure. These may occur as a result of the underlying condition, leading to intestinal failure, particularly inflammatory conditions such as Crohn's disease and their associated treatments including corticosteroids. Malabsorption, as a result of a loss of enterocyte mass or gut function, of many nutrients, including vitamin D, may further compound metabolic bone problems, and there has been historical contamination of parenteral nutrition with aluminium that has prevented normal bone metabolism contributing to osteoporosis. This review looks at the diagnosis and current management of bone health in patients with intestinal failure.
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Affiliation(s)
- P J Allan
- Translational Gastroenterology Unit, NIHR Oxford Biomedical Research Centre, Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Oxford, UK
| | - S Lal
- Intestinal Failure Unit, Salford Royal NHS Foundation Trust, Salford, UK.,School of medical science, University of Manchester, Manchester, UK
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Li Y, Lu X, Yang B, Mao J, Jiang S, Yu D, Pan J, Cai T, Yasui T, Gao B. Vitamin K1 Inhibition of Renal Crystal Formation through Matrix Gla Protein in the Kidney. Kidney Blood Press Res 2019; 44:1392-1403. [PMID: 31639794 DOI: 10.1159/000503300] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 09/07/2019] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Vitamin K (VK) plays a major role in modifying the binding of calcium in bones and blood vessels. Understanding the effect of VK on crystal formation in the kidney would contribute to advancing the treatment and prevention of kidney stones. METHODS Rats were treated with vitamin K1 (VK1) for 8 weeks. VK1 levels were detected and crystal formation were observed. HK2 cells were exposed to calcium oxalate monohydrate crystals. Apoptosis and cell viability were detected. Crystal deposition was analyzed using atomic absorption assay. The adenovirus vectors expressing matrix Gla protein (MGP) and siMGP were constructed to elucidate the effect and mechanism of VK1 on crystal formation. MGP expression in vivo and in vitro was analyzed by Western blot. The mRNA levels of monocyte chemoattractant protein-1 (MCP-1) and collagen I was measured by semiquantitative RT-PCR. RESULTS The concentrations of VK1 in whole blood and kidney tissues rose under treatment with VK1. Crystal formation was inhibited from the second to the 6th week, the frequency and quality of crystal formation decreased significantly, and the location of crystal formation was limited to a greater extent in the rats treated by VK1 compared to the control group. Warfarin treatment in the crystals-exposed HK2 cells significantly increased the number of crystals adhering to cells and the number of apoptotic cells and reduced cell viability. VK1 treatment reversed warfarin's above influence. VK1 inhibited the upregulations of MCP-1 and collagen I in kidney tissues under crystal load. VK1 treatment increased MGP expression in vivo and in vitro, and MGP is necessary for VK1 to play a role in crystal deposition in cells. CONCLUSIONS VK1 treatment can inhibit the formation of renal crystals in vivo. VK1 increases MGP expression and functions through MGP to reduce crystal deposition in cells and provide cell protection. Our findings suggest that VK1 treatment could be a potential strategy for the treatment and prevention of nephrolithiasis.
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Affiliation(s)
- Yang Li
- Department of Biochemistry and Cell Biology, School of Life Sciences, Liaoning University, Shenyang, China
- China-Japan Kidney Stone Research Center, Shenyang Medical College, Shenyang, China
- Key Laboratory of Renal Calcification Disease Prevention and Treatment, Shenyang, China
| | - Xiuli Lu
- Department of Biochemistry and Cell Biology, School of Life Sciences, Liaoning University, Shenyang, China
| | - Baoyu Yang
- Department of Biochemistry and Cell Biology, School of Life Sciences, Liaoning University, Shenyang, China
| | - Jing Mao
- Department of Biochemistry and Cell Biology, School of Life Sciences, Liaoning University, Shenyang, China
| | - Shan Jiang
- Department of Biochemistry and Cell Biology, School of Life Sciences, Liaoning University, Shenyang, China
| | - Daojun Yu
- China-Japan Kidney Stone Research Center, Shenyang Medical College, Shenyang, China
- Key Laboratory of Renal Calcification Disease Prevention and Treatment, Shenyang, China
| | - Jichuan Pan
- Department of Cell Biology and Genetics, Shenyang Medical College, Shenyang, China
- China-Japan Kidney Stone Research Center, Shenyang Medical College, Shenyang, China
- Key Laboratory of Renal Calcification Disease Prevention and Treatment, Shenyang, China
| | - Tiange Cai
- Department of Biochemistry and Cell Biology, School of Life Sciences, Liaoning University, Shenyang, China
| | - Takahiro Yasui
- Department of Nephro-Urology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
- China-Japan Kidney Stone Research Center, Shenyang Medical College, Shenyang, China
| | - Bing Gao
- Department of Cell Biology and Genetics, Shenyang Medical College, Shenyang, China,
- China-Japan Kidney Stone Research Center, Shenyang Medical College, Shenyang, China,
- Key Laboratory of Renal Calcification Disease Prevention and Treatment, Shenyang, China,
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37
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Vitamin K 2 induces non-apoptotic cell death along with autophagosome formation in breast cancer cell lines. Breast Cancer 2019; 27:225-235. [PMID: 31625014 DOI: 10.1007/s12282-019-01012-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 10/03/2019] [Indexed: 12/24/2022]
Abstract
BACKGROUND Vitamin K2 (VK2) has been reported to induce apoptosis in many types of cancer cells including leukemia. However, there are no precise reports regarding the breast cancer cells. From the stand point of clinical implications of VK2 including chemoprevention, we investigated the effects of VK2 on breast cancer cell lines. METHODS Breast cancer cell lines were cultured with VK2, and the cytotoxicity and cell death phenotype were examined. The HL-60 leukemia cells were used as a control for VK2-induced apoptosis. RESULTS VK2 exhibited the cytotoxic effect, especially in triple negative breast cancer cell lines, namely, MDA-MB-231 and MDA-MB-468. However, in contrast to HL-60 cells, typical features of the cells undergoing apoptosis, such as chromatin condensation, nuclear fragments, and cleavage of caspase-3 were not detected. Transmission electron microscopy exhibited an increased number of autophagosomes/autolysosomes with plasma membrane integrity. An autophagy inhibitor, 3-methyladenine, apparently attenuated VK2-induced cytotoxicity, which indicated the involvement of autophagy-dependent cell death. Interestingly, both VK2-induced non-apoptotic cell death in MDA-MB-231 cells and VK2-induced apoptosis in HL-60 cells were suppressed in the presence of reactive oxygen species (ROS) scavengers. Therefore, ROS production by VK2 seems to be located up-stream in the molecular machinery for both the types of cell death execution. CONCLUSION The VK2 induced non-apoptotic cell death along with autophagy, in triple negative breast cancer cell lines. Cell death phenotype induced by VK2 appears to differ among the type of cancers. This suggests the possibility of using VK2 for the breast cancer therapy.
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Improvement of menaquinone-7 production by Bacillus subtilis natto in a novel residue-free medium by increasing the redox potential. Appl Microbiol Biotechnol 2019; 103:7519-7535. [PMID: 31378837 DOI: 10.1007/s00253-019-10044-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 07/13/2019] [Accepted: 07/23/2019] [Indexed: 01/12/2023]
Abstract
Bacillus subtilis natto is a GRAS bacterium. Nattokinase, with fibrinolytic and antithrombotic activities, is one of the major products of this organism. It is being gradually recognized that B. subtilis natto can also be used as a biosynthetic strain for vitamin K2, which has phenomenal benefits, such as effects in the prevention of cardiovascular diseases and osteoporosis along with antitumor effects. Knocking out of the aprN gene by homologous recombination could improve the redox potential and slightly increase the concentration of MK-7. By detecting the change in redox potential during the growth of B. subtilis natto, a good oxygen supply and state of the cell membrane were found to be beneficial to vitamin K2 synthesis. A two-step RSM was used to optimize the operation parameters and substrate concentration in the new residue-free fermentation culture. The optimal conditions for the residue-free medium and control were determined. The optimum concentrations of soybean flour, corn flour, and peptone were 78.9, 72.4, and 24.8 g/L, respectively. The optimum rotational speed and volume of the culture medium using a shaking flask were 117 rpm and 10%, respectively. The state and composition of the cell membranes were more stable when engineered bacteria were cultured in this residue-free fermentation medium. Finally, the concentration of MK-7 increased by 37% to 18.9 mg/L, and the fermentation time was shortened by 24 h.
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McDonald MG, Yeung CK, Teitelbaum AM, Johnson AL, Fujii S, Kagechika H, Rettie AE. A new LC-MS assay for the quantitative analysis of vitamin K metabolites in human urine. J Lipid Res 2019; 60:892-899. [PMID: 30670472 PMCID: PMC6446701 DOI: 10.1194/jlr.d087916] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 01/04/2019] [Indexed: 11/20/2022] Open
Abstract
Vitamin K (VK), in both its phylloquinone and menaquinone forms, has been hypothesized to undergo ω- and β-oxidation on its hydrophobic side chain in order to generate the observed urinary metabolites, K acid I and K acid II, which are excreted primarily as glucuronide conjugates. Synthetic standards of K acid I, K acid II, and a putative intermediate metabolite, menaquinone (MK)1 ω-COOH, were used to develop and optimize a new atmospheric pressure negative chemical ionization LC-MS/MS assay for the quantitation of these compounds in urine from untreated individuals and subjects treated with a high dose VK supplement. VK catabolites were extracted from urine, deconjugated, and converted to their methyl ester derivatives using previously reported methodology. The assay showed a high degree of sensitivity, with limits of detection below 10-50 fmol of metabolite per milliliter of urine, as well as an inter-assay precision of 8-12%. Metabolite standards provided unambiguous evidence for MK1 ω-COOH as a new human urinary metabolite of VK. This assay provides a minimally invasive, highly sensitive, and specific alternative for monitoring VK status in humans.
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Affiliation(s)
- Matthew G McDonald
- Departments of Medicinal Chemistry University of Washington, Seattle, WA 98195-7610.
| | - Catherine K Yeung
- Departments of Pharmacy, University of Washington, Seattle, WA 98195-7610
| | - Aaron M Teitelbaum
- Departments of Medicinal Chemistry University of Washington, Seattle, WA 98195-7610
| | - Amanda L Johnson
- Departments of Medicinal Chemistry University of Washington, Seattle, WA 98195-7610
| | - Shinya Fujii
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo 101-0062, Japan
| | - Hiroyuki Kagechika
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo 101-0062, Japan
| | - Allan E Rettie
- Departments of Medicinal Chemistry University of Washington, Seattle, WA 98195-7610
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Xu Q, Guo H, Cao S, Zhou Q, Chen J, Su M, Chen S, Jiang S, Shi X, Wen Y. Associations of vitamin K status with mortality and cardiovascular events in peritoneal dialysis patients. Int Urol Nephrol 2019; 51:527-534. [PMID: 30689181 DOI: 10.1007/s11255-019-02080-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 01/07/2019] [Indexed: 01/07/2023]
Abstract
PURPOSE Vitamin K deficiency, expressed by a high level of desphospho-uncarboxylated matrix GLA protein (dp-ucMGP), is highly prevalent in dialysis patients. However, the predictive ability of the vitamin K status remains unclear in continuous ambulatory peritoneal dialysis (CAPD) patients. METHODS 158 prevalent CAPD patients with a median level of dp-ucMGP of 1093 (752, 1485) pmol/L were enrolled. Patient outcomes including all-cause mortality and cardiovascular events (CVEs) were recorded during follow-up. Survival curves were performed using Kaplan-Meier method, and the influences of dp-ucMGP on outcomes were analyzed by Cox regression models. RESULTS A total of 59 deaths and 82 new episodes of CVEs occurred during median follow-up of 31.4 ± 13.1 months (range: 3.8-48.0 months). Kaplan-Meier analysis revealed patients with higher dp-ucMGP levels (≥ 1093 pmol/L) had an increased risk for both mortality (P = 0.005) and CVEs (P < 0.001). Multivariable Cox regression confirmed that higher dp-ucMGP levels increase the mortality risk [hazard ratio (HR), 1.763; 95% CI 1.045-3.291] and CVEs (HR, 1.846; 95% CI 1.074-3.172). For every 100 pmol/L increase in serum dp-ucMGP, the adjusted HRs for mortality and CVEs were 1.054 (95% CI 1.008-1.106) and 1.034 (95% CI 1.012-1.089), respectively. CONCLUSIONS Vitamin K deficiency, as expressed by high dp-ucMGP levels, showed independently associations with mortality and CVEs in CAPD patients.
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Affiliation(s)
- Qingdong Xu
- Department of Nephrology, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat-sen University, Guangdong, People's Republic of China.
| | - Huankai Guo
- Department of Nephrology, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat-sen University, Guangdong, People's Republic of China
| | - Shirong Cao
- Department of Nephrology, Central Municipal Hospital of Huizhou, Guangdong, People's Republic of China
| | - Qian Zhou
- Clinical Trials Unit, The First Affiliated Hospital, Sun Yat-sen University, Guangdong, People's Republic of China
| | - Jiexin Chen
- Department of Nephrology, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat-sen University, Guangdong, People's Republic of China
| | - Ming Su
- Department of Nephrology, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat-sen University, Guangdong, People's Republic of China
| | - Siying Chen
- Department of Nephrology, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat-sen University, Guangdong, People's Republic of China
| | - Songqin Jiang
- Department of Nephrology, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat-sen University, Guangdong, People's Republic of China
| | - Xiaofeng Shi
- Department of Nephrology, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat-sen University, Guangdong, People's Republic of China
| | - Yueqiang Wen
- Department of Nephrology, the 2nd Affiliated Hospital of Guangzhou Medical University, Guangdong, People's Republic of China
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Cardiac valve calcification and use of anticoagulants: Preliminary observation of a potentially modifiable risk factor. Int J Cardiol 2018; 278:243-249. [PMID: 30538058 DOI: 10.1016/j.ijcard.2018.11.119] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 10/24/2018] [Accepted: 11/26/2018] [Indexed: 12/16/2022]
Abstract
AIMS Direct oral anticoagulant (DOAC) has been recently introduced in the clinical practice. Rather than interfering with vitamin K-dependent posttranscriptional modification of various proteins, DOACs selectively inhibit factors involved in the coagulation cascade. In particular, in contrast with Warfarin, Rivaroxabn does not interfere with activation of matrix Gla Protein (MGP), a potent vascular calcification Inhibitor. We herein sought to investigate the impact of Rivaroxaban and Warfarin on cardiac valve calcifications in a cohort of moderate-to advanced CKD patients. METHODS AND RESULTS This is a multicenter, observational, retrospective, longitudinal study. Consecutive CKD stage 3b - 4 (according to KDIGO guidelines) patients from 8 cardiologic outpatient clinics were enrolled between May 2015 and October 2017. All patients received anticoagulation (100 Warfarin vs 247 Rivaroxaban) as part of their non-valvular atrial fibrillation management. Cardiac valve calcification was evaluated via standard trans-thoracic echocardiogram. 347 patients (mean age: 66 years; mean eGFR: 37 ml/min/1.73 m2) were studied. Over a mean follow-up period of 16 months, Rivaroxaban compared to Warfarin reduced both mitral and aortic valve calcifications (p < 0.001) independently of the degree of calcifications at baseline and potential confounders. Notably, Rivaroxaban use was also associated with a significant reduction in C reactive protein (CRP) (p < 0.001) during follow-up. CONCLUSION This study generates the hypothesis that the use of Rivaroxaban associates with a reduction of cardiac valve calcification deposition and progression as compared to Warfarin, in a cohort of CKD stage 3b-4 patients. Future endeavors are needed to confirm and to establish the mechanisms responsible for these findings.
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Association of dietary patterns of American adults with bone mineral density and fracture. Public Health Nutr 2018; 21:2417-2423. [PMID: 29779504 DOI: 10.1017/s1368980018000939] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
OBJECTIVE In a representative sample of US adults, we investigated the associations of nutrient patterns (NP) with bone mineral density (BMD) and fractures. DESIGN Cross-sectional. SETTING US community-based National Health and Nutrition Examination Survey (NHANES). SUBJECTS Participants with measured data on dietary intake and BMD from 2005 to 2010 were included. Principal components analysis was used to identify NP. BMD was measured using dual-energy X-ray absorptiometry. ANCOVA, adjusted logistic and linear regression models were employed, accounting for the complex survey design and sample weights. RESULTS We included a total of 18 318 participants, with 47·0 % (n 8607) being men. The mean age was 45·8 years with no sex difference. Three NP emerged, explaining 55·9 % of the variance in nutrient consumption. Multivariable-adjusted linear regressions revealed significant inverse associations between the 'high-energy' NP (rich in carbohydrates and sugar, total fat and saturated fat) and total femur, femoral neck, trochanter and intertrochanter BMD (β coefficient: -0·029, -0·025, -0·034 and -0·021, respectively, all P<0·001), while there were significant associations between the 'nutrient-dense' NP (rich in vitamins, minerals and fibre) and 'healthy fat' NP (high dietary PUFA and MUFA) and BMD at total femur, femoral neck, trochanter and intertrochanter (all P<0·001). In adjusted logistic regression models, the odds of hip, wrist or spine fractures did not vary significantly across NP quartiles. CONCLUSIONS Nutrient-dense and healthy fat NP are associated with higher BMD at various bone sites, while the high-energy NP is inversely associated with BMD measures.
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