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Liao C, Ayansola H, Ma Y, Ito K, Guo Y, Zhang B. Advances in Enhanced Menaquinone-7 Production From Bacillus subtilis. Front Bioeng Biotechnol 2021; 9:695526. [PMID: 34354987 PMCID: PMC8330505 DOI: 10.3389/fbioe.2021.695526] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 07/01/2021] [Indexed: 12/02/2022] Open
Abstract
The production of nutraceutical compounds through biosynthetic approaches has received considerable attention in recent years. For example, Menaquinone-7 (MK-7), a sub-type of Vitamin K2, biosynthesized from Bacillus subtilis (B. subtilis), proved to be more efficiently produced than the conventional chemical synthesis techniques. This is possible due to the development of B. subtilis as a chassis cell during the biosynthesis stages. Hence, it is imperative to provide insights on the B. subtilis membrane permeability modifications, biofilm reactors, and fermentation optimization as advanced techniques relevant to MK-7 production. Although the traditional gene-editing method of homologous recombination improves the biosynthetic pathway, CRISPR-Cas9 could potentially resolve the drawbacks of traditional genome editing techniques. For these reasons, future studies should explore the applications of CRISPRi (CRISPR interference) and CRISPRa (CRISPR activation) system gene-editing tools in the MK-7 anabolism pathway.
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Affiliation(s)
- Chaoyong Liao
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Hammed Ayansola
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yanbo Ma
- Henan International Joint Laboratory of Animal Welfare and Health Breeding, Department of Animal Physiology, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China
| | - Koichi Ito
- Department of Food and Physiological Models, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Ibaraki, Japan
| | - Yuming Guo
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Bingkun Zhang
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, China Agricultural University, Beijing, China
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Grzejszczak P, Kurnatowska I. Role of Vitamin K in CKD: Is Its Supplementation Advisable in CKD Patients? Kidney Blood Press Res 2021; 46:523-530. [PMID: 34247173 DOI: 10.1159/000516611] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 04/16/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Patients with CKD are at an increased risk of developing vascular calcification (VC) and bone complications which translate into a higher morbidity and mortality. The dephosphorylated and uncarboxylated matrix Gla protein (dp-ucMGP) is considered to be an indicator of vitamin K2 status and correlates with markers of VC. It is activated by γ-glutamyl carboxylase that converts inactive MGP into an active form, and vitamin K2 is a cofactor of this reaction. The active form of MGP is a known inhibitor of arterial wall calcification and plays an important role in bone turnover. Recent studies show poor vitamin K2 status in CKD patients. We aimed to review the literature for the association between vitamin K2 status and calcification and bone disease risk and the efficacy of vitamin K2 supplementation in CKD population. SUMMARY Most CKD patients, including those on renal replacement therapy, have vitamin K2 deficiency. The dp-ucMGP level, a marker of vitamin K2 status, is decreased by vitamin K2 supplementation in CKD patients, but there is no unequivocal proof that it influences arterial calcification progression and bone complications. Key Messages: CKD population are at risk of vitamin K deficiency. Supplementation of vitamin K2 is safe and improves the serum markers of its deficiency. There is lack of strong evidence that vitamin K2 supplementation slows progression of calcification or reduces the frequency of bone complications. More prospective studies are needed.
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Affiliation(s)
- Patrycja Grzejszczak
- Department of Internal Medicine and Nephrology Transplantation, 1st Chair of Internal Medicine, Medical University of Lodz, Lodz, Poland
| | - Ilona Kurnatowska
- Department of Internal Medicine and Nephrology Transplantation, 1st Chair of Internal Medicine, Medical University of Lodz, Lodz, Poland
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Kieronska-Rudek A, Kij A, Kaczara P, Tworzydlo A, Napiorkowski M, Sidoryk K, Chlopicki S. Exogenous Vitamins K Exert Anti-Inflammatory Effects Dissociated from Their Role as Substrates for Synthesis of Endogenous MK-4 in Murine Macrophages Cell Line. Cells 2021; 10:1571. [PMID: 34206530 PMCID: PMC8303864 DOI: 10.3390/cells10071571] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/16/2021] [Accepted: 06/17/2021] [Indexed: 01/07/2023] Open
Abstract
Vitamins K exert a range of activities that extend far beyond coagulation and include anti-inflammatory effects, but the mechanisms involved in anti-inflammatory action remain unclear. In the present study, we showed that various forms of exogenous vitamins-K1, K3, K2 (MK-4, MK-5, MK-6 and MK-7)-regulated a wide scope of inflammatory pathways in murine macrophages in vitro, including NOS-2, COX-2, cytokines and MMPs. Moreover, we demonstrated for the first time that macrophages are able to synthesise endogenous MK-4 on their own. Vitamins with shorter isoprenoid chains-K1, K3 and MK-5-exhibited stronger anti-inflammatory potential than vitamins with longer isoprenoid chains (MK-6 and MK-7) and simultaneously were preferably used as a substrate for MK-4 endogenous production. Most interesting, atorvastatin pretreatment inhibited endogenous MK-4 production but had no impact on the anti-inflammatory activity of vitamins K. In summary, our results demonstrate that macrophages are able to synthesise endogenous MK-4 using exogenous vitamins K, and statin inhibits this process. However, the anti-inflammatory effect of exogenous vitamins K was independent of endogenous MK-4 synthesis.
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Affiliation(s)
- Anna Kieronska-Rudek
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Bobrzynskiego 14, 30-348 Krakow, Poland; (A.K.-R.); (A.K.); (P.K.); (A.T.)
- Department of Pharmacology, Medical College, Jagiellonian University, Grzegorzecka 16, 31-531 Krakow, Poland
| | - Agnieszka Kij
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Bobrzynskiego 14, 30-348 Krakow, Poland; (A.K.-R.); (A.K.); (P.K.); (A.T.)
| | - Patrycja Kaczara
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Bobrzynskiego 14, 30-348 Krakow, Poland; (A.K.-R.); (A.K.); (P.K.); (A.T.)
| | - Anna Tworzydlo
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Bobrzynskiego 14, 30-348 Krakow, Poland; (A.K.-R.); (A.K.); (P.K.); (A.T.)
| | - Marek Napiorkowski
- Chemistry Department, Pharmaceutical Research Institute, Rydygiera 8, 01-793 Warszawa, Poland; (M.N.); (K.S.)
| | - Katarzyna Sidoryk
- Chemistry Department, Pharmaceutical Research Institute, Rydygiera 8, 01-793 Warszawa, Poland; (M.N.); (K.S.)
| | - Stefan Chlopicki
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Bobrzynskiego 14, 30-348 Krakow, Poland; (A.K.-R.); (A.K.); (P.K.); (A.T.)
- Department of Pharmacology, Medical College, Jagiellonian University, Grzegorzecka 16, 31-531 Krakow, Poland
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Ren R, Liu J, Cheng G, Tan J. Vitamin K2 (Menaquinone-7) supplementation does not affect vitamin K-dependent coagulation factors activity in healthy individuals. Medicine (Baltimore) 2021; 100:e26221. [PMID: 34115006 PMCID: PMC8202544 DOI: 10.1097/md.0000000000026221] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Accepted: 05/18/2021] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Vitamin K has long been regarded as a procoagulant drug by physicians, and concerns have been raised with regard to its effects on hemostasis. Although many studies have shown that vitamin K supplementation is safe for thrombotic events, the effect of vitamin K supplementation on the activities of vitamin K dependent procoagulation factors in healthy individuals is not available. OBJECTIVES This study aimed to investigate whether vitamin K2 supplementation at recommended doses affects the activity of vitamin K dependent procoagulation factors in healthy individuals without any anticoagulation treatment. DESIGN Forty healthy volunteers between 25 and 40 years of age were recruited. Menaquinone-7 (MK-7) was administrated at 90 μg for 30 days. Prothrombin time (PT), activated partial thromboplastin time (APTT), thrombin time (TT), and blood coagulation factors II, VII, IX, and X activities and Protein induced by vitamin K absence or antagonist-II (PIVKA-II) were measured on days 0 and 30 after MK-7 administration. RESULTS PT, APTT, and TT showed no significant differences on day 30 when compared with baseline. The activities of coagulation factors II, VII, IX, and X on day 30 showed no significant differences with those at baseline. PIVKA-II levels were unchanged after 30 days of MK-7 supplementation. CONCLUSIONS MK-7 supplementation at recommended dosage does not affect vitamin K-dependent coagulation factors' coagulation activity, and does not enhance the carboxylation of prothrombin in healthy individuals. This indicated that MK-7 administration does not alter hemostatic balance in healthy populations without anticoagulation treatment.
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Affiliation(s)
- Ruijun Ren
- Department of Hematology, Affiliated Hospital of North Sichuan Medical College, Nanchong
| | - Jia Liu
- Department of Hematology, Affiliated Hospital of Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Guo Cheng
- Department of Hematology, Affiliated Hospital of Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Jing Tan
- Department of Hematology, Affiliated Hospital of Southwest Jiaotong University, Chengdu, Sichuan, China
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Shea MK, Berkner KL, Ferland G, Fu X, Holden RM, Booth SL. Perspective: Evidence before Enthusiasm-A Critical Review of the Potential Cardiovascular Benefits of Vitamin K. Adv Nutr 2021; 12:632-646. [PMID: 33684212 PMCID: PMC8166540 DOI: 10.1093/advances/nmab004] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 01/11/2021] [Accepted: 01/15/2021] [Indexed: 12/12/2022] Open
Abstract
A protective role for vitamin K in cardiovascular disease (CVD), a leading cause of morbidity and mortality, has been proposed because vitamin K-dependent proteins, such as matrix Gla (γ-carboxyglutamic acid) protein (MGP), are present in vascular tissue. MGP functions as a vascular calcification inhibitor-but only when it is carboxylated, which requires vitamin K. There is more than one naturally occurring form of vitamin K. Phylloquinone (vitamin K1) is found in plant-based foods, whereas menaquinones (vitamin K2) are a class of vitamin K compounds found in animal-based and fermented foods. Phylloquinone and menaquinones are capable of carboxylating MGP and other vitamin K-dependent proteins. In rodent models, high intakes of either phylloquinone or menaquinone reduced vascular calcification. Evidence of the relative importance of phylloquinone and menaquinone to CVD in humans is limited and controversial. In some observational studies, higher dietary menaquinone intake, but not phylloquinone intake, was associated with less coronary artery calcification (a subclinical manifestation of CVD) and a lower risk for clinical CVD events. These findings have led to claims that menaquinones have unique cardiovascular health benefits compared with phylloquinone. However, this claim is not supported by the results of the limited number of intervention trials conducted to date. The purpose of this review is to evaluate the strengths and limitations of the available evidence regarding the role of vitamin K in vascular calcification, CVD, and mortality.
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Affiliation(s)
- M Kyla Shea
- Tufts University USDA Human Nutrition Research Center on Aging, Boston, MA, USA
| | - Kathleen L Berkner
- Department of Cardiovascular and Metabolic Sciences, Cleveland Clinic Lerner College of Medicine at CWRU, Cleveland Clinic, Cleveland, OH, USA
| | - Guylaine Ferland
- Département de Nutrition, Université de Montréal, Montreal, Quebec, Canada
| | - Xueyan Fu
- Tufts University USDA Human Nutrition Research Center on Aging, Boston, MA, USA
| | - Rachel M Holden
- Department of Medicine, Queen's University, Kingston, Ontario, Canada
| | - Sarah L Booth
- Tufts University USDA Human Nutrition Research Center on Aging, Boston, MA, USA
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McBurney MI, Blumberg JB, Costello RB, Eggersdorfer M, Erdman JW, Harris WS, Johnson EJ, Hazels Mitmesser S, Post RC, Rai D, Schurgers LJ. Beyond Nutrient Deficiency-Opportunities to Improve Nutritional Status and Promote Health Modernizing DRIs and Supplementation Recommendations. Nutrients 2021; 13:1844. [PMID: 34071268 PMCID: PMC8229216 DOI: 10.3390/nu13061844] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/13/2021] [Accepted: 05/25/2021] [Indexed: 12/12/2022] Open
Abstract
The US Dietary Guidelines for Americans (DGA) provide dietary recommendations to meet nutrient needs, promote health, and prevent disease. Despite 40 years of DGA, the prevalence of under-consumed nutrients continues in the US and globally, although dietary supplement use can help to fill shortfalls. Nutrient recommendations are based on Dietary Reference Intakes (DRIs) to meet the nutrient requirements for nearly all (97 to 98 percent) healthy individuals in a particular life stage and gender group and many need to be updated using current evidence. There is an opportunity to modernize vitamin and mineral intake recommendations based on biomarker or surrogate endpoint levels needed to 'prevent deficiency' with DRIs based on ranges of biomarker or surrogate endpoints levels that support normal cell/organ/tissue function in healthy individuals, and to establish DRIs for bioactive compounds. We recommend vitamin K and Mg DRIs be updated and DRIs be established for lutein and eicosapentaenoic and docosahexaenoic acid (EPA + DHA). With increasing interest in personalized (or precision) nutrition, we propose greater research investment in validating biomarkers and metabolic health measures and the development and use of inexpensive diagnostic devices. Data generated from such approaches will help elucidate optimal nutrient status, provide objective evaluations of an individual's nutritional status, and serve to provide personalized nutrition guidance.
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Affiliation(s)
- Michael I. McBurney
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1H 0B5, Canada
- Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA 02111, USA; (J.B.B.); (E.J.J.)
| | - Jeffrey B. Blumberg
- Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA 02111, USA; (J.B.B.); (E.J.J.)
| | | | - Manfred Eggersdorfer
- Department of Internal Medicine, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands;
| | - John W. Erdman
- Department of Food Science and Human Nutrition, University of Illinois, Urbana-Champaign, IL 61801, USA;
| | - William S. Harris
- Department of Internal Medicine, University of South Dakota, Sioux Falls, SD 57105, USA;
- The Fatty Acid Research Institute, Sioux Falls, SD 57106, USA
| | - Elizabeth J. Johnson
- Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA 02111, USA; (J.B.B.); (E.J.J.)
| | | | - Robert C. Post
- FoodTrition Solutions, LLC, Hackettstown, NJ 07840, USA;
| | - Deshanie Rai
- Global Regulatory and Scientific Affairs, Omniactive Health Technologies, Morristown, NJ 07960, USA;
| | - Leon J. Schurgers
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), University of Maastricht, 6200 MD Maastricht, The Netherlands;
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Gao Q, Chen H, Wang G, Yang W, Zhong X, Liu J, Huo X, Liu W, Huang J, Tao Y, Lin B. Highly Efficient Production of Menaquinone-7 from Glucose by Metabolically Engineered Escherichia coli. ACS Synth Biol 2021; 10:756-765. [PMID: 33755417 DOI: 10.1021/acssynbio.0c00568] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Menaquinone-7 (MK-7) possesses wide health and medical value, and the market demand for MK-7 has increased. Metabolic engineering for MK-7 production in Escherichia coli still remains challenging due to the characteristics of the competing quinone synthesis, and cells mainly synthesized menaquinones under anaerobic conditions. To increase the production of MK-7 in engineered E. coli strains under aerobic conditions, we divided the whole MK-7 biosynthetic pathway into three modules (MVA pathway, DHNA pathway, and MK-7 pathway) and systematically optimized each of them. First, by screening and enhancing Idi expression, the amounts of MK-7/DMK-7 increased significantly. Then, in the MK-7 pathway, by combinatorial overexpression of endogenous MenA and exogenous UbiE, and fine-tuning the expression of HepPPS, MenA, and UbiE, 70 μM MK-7 was achieved. Third, the DHNA synthetic pathway was enhanced, and 157 μM MK-7 was achieved. By the combinational metabolic engineering strategies and membrane engineering, an efficient metabolic engineered E. coli strain for MK-7 synthesis was developed, and 200 μM (129 mg/L) MK-7 was obtained in shake flask experiment, representing a 306-fold increase compared to the starting strain. In the scale-up fermentation, 2074 μM (1350 mg/L) MK-7 was achieved after 52 h fermentation with a productivity of 26 mg/L/h. This is the highest titer of MK-7 ever reported. This study offers an alternative method for MK-7 production from biorenewable feedstock (glucose) by engineered E. coli. The high titer of our process should make it a promising cost-effective resource for MK-7.
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Affiliation(s)
- Quanxiu Gao
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- National Engineering Research Center of Industrial Microbiology and Fermentation Technology, College of Life Sciences, Fujian Normal University, Fuzhou, Fujian 350117, China
| | - Hao Chen
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Gaoyan Wang
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Wei Yang
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xiaotong Zhong
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiezheng Liu
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, China
| | - XiaoJing Huo
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- National Engineering Research Center of Industrial Microbiology and Fermentation Technology, College of Life Sciences, Fujian Normal University, Fuzhou, Fujian 350117, China
| | - Weifeng Liu
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Jianzhong Huang
- National Engineering Research Center of Industrial Microbiology and Fermentation Technology, College of Life Sciences, Fujian Normal University, Fuzhou, Fujian 350117, China
| | - Yong Tao
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Baixue Lin
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, China
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Zhang Z, Liu L, Liu C, Sun Y, Zhang D. New aspects of microbial vitamin K2 production by expanding the product spectrum. Microb Cell Fact 2021; 20:84. [PMID: 33849534 PMCID: PMC8042841 DOI: 10.1186/s12934-021-01574-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 04/02/2021] [Indexed: 12/21/2022] Open
Abstract
Vitamin K2 (menaquinone, MK) is an essential lipid-soluble vitamin with critical roles in blood coagulation and bone metabolism. Chemically, the term vitamin K2 encompasses a group of small molecules that contain a common naphthoquinone head group and a polyisoprenyl side chain of variable length. Among them, menaquinone-7 (MK-7) is the most potent form. Here, the biosynthetic pathways of vitamin K2 and different types of MK produced by microorganisms are briefly introduced. Further, we provide a new aspect of MK-7 production, which shares a common naphthoquinone ring and polyisoprene biosynthesis pathway, by analyzing strategies for expanding the product spectrum. We review the findings of metabolic engineering strategies targeting the shikimate pathway, polyisoprene pathway, and menaquinone pathway, as well as membrane engineering, which provide comprehensive insights for enhancing the yield of MK-7. Finally, the current limitations and perspectives of microbial menaquinone production are also discussed. This article provides in-depth information on metabolic engineering strategies for vitamin K2 production by expanding the product spectrum.
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Affiliation(s)
- Zimeng Zhang
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China.,Key Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China.,Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Linxia Liu
- Key Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China.,Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China.,National Technology Innovation Center of Synthetic Biology, Tianjin, 300308, China
| | - Chuan Liu
- Key Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China.,Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yumei Sun
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China.
| | - Dawei Zhang
- Key Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China. .,Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China. .,National Technology Innovation Center of Synthetic Biology, Tianjin, 300308, China. .,University of Chinese Academy of Sciences, Beijing, 100049, China.
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Vitamin K2 (menaquinone-7) increases plasma adiponectin but does not affect insulin sensitivity in postmenopausal women: a randomized controlled trial. Eur J Clin Nutr 2021; 75:1661-1667. [PMID: 33664429 DOI: 10.1038/s41430-021-00884-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 01/21/2021] [Accepted: 02/12/2021] [Indexed: 11/08/2022]
Abstract
BACKGROUND/OBJECTIVES Vitamin K is a co-factor in the carboxylation of the bone matrix protein osteocalcin (OC), and thus decreases the concentration of undercarboxylated osteocalcin (ucOC). Animal and in vitro studies suggest that ucOC increases insulin sensitivity. However, epidemiological studies find positive associations between vitamin K intake and insulin sensitivity. We aimed to investigate the effect of vitamin K2 in the form of menaquinone-7 (MK-7) on serum ucOC, bone mass, and insulin sensitivity in postmenopausal women. SUBJECTS/METHODS This was a randomized placebo-controlled trial. One hundred forty-eight postmenopausal women received MK-7 375 µg daily or placebo, as an add-on to calcium (800 mg) and vitamin D (38 µg) for 12 months. We measured serum ucOC, insulin sensitivity by HOMA-IR, and plasma adiponectin and leptin at baseline and after 12 months. RESULTS S-ucOC decreased in the MK-7 group (-70.3 (-75.6; -63.8) %) compared to the placebo group (-7.2 (-15.9; 2.0) %) after 12 months (p < 0.01). P-adiponectin increased in the MK-7 group (6.1 ± 20.1%) (mean ± SD) compared to the placebo group (-0.7 ± 15.5%) after 12 months (p = 0.03). HOMA-IR and p-leptin did not change in the two groups. CONCLUSION Treatment with MK-7 for 12 months decreased p-ucOC, increased p-adiponectin, but did not change insulin sensitivity suggesting that ucOC does not affect insulin sensitivity in healthy postmenopausal women.
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Dosumu OA, Rotimi SO, Adeleye OO, Akamo AJ, Osinuga KT, Taiwo OA, Omotosho OO, Sani LO. Vitamin K protects against 7,12-dimethylbenz(A)anthracene induced hepatotoxicity in Wistar rats. ENVIRONMENTAL TOXICOLOGY 2021; 36:362-373. [PMID: 33063951 DOI: 10.1002/tox.23042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 07/06/2020] [Accepted: 10/03/2020] [Indexed: 06/11/2023]
Abstract
Humans are daily exposed to 7,12-dimethylbenz(a)anthracene (DMBA), a well known polycyclic aromatic hydrocarbons (PAH). This study investigated the role of dietary intake of Vitamin K (VK), a polyphenolic compound, with potential antioxidative properties, against DMBA-induced hepatotoxicity. Sixty experimental animals (120-150 g) were divided into six groups (A-F): Control, DMBA (80 mg/kg bw) only, VK (0.00 g/10 kg) diet only, VK (7.5 g/10 kg) diet only, DMBA + VK (0.0 g/10 kg) diet and DMBA + VK (7.5 g/10 kg) diet. Single oral administration of DMBA (80 mg/kg body weight) to Wistar rats resulted in hepatic damage after 16 weeks. DMBA significantly (P < .05) decreased the activities of catalase (CAT), superoxide dismutase (SOD), glutathione-S-transferase (GST) and glutathione peroxidase (GPx). Levels of reduced glutathione (GSH) and Vitamin C were significantly decreased with increase in malondialdehyde (MDA) and nitric oxide (NO) levels in serum and liver. Aspartate aminotransaminase (AST), alanine aminotransaminase (ALT), γ-glutamyltransferase (GGT), alkaline phosphatase (ALP), and lactate dehydrogenase (LDH) activities were significantly (P < .05) elevated in the serum but reduced in the liver of DMBA-administered group. Ingestion of 7.5 g/10 kg VK diet prevented the up regulations in inflammatory biomarkers (granulocyte macrophage colony stimulating factor (GM-CSF) and interleukin 17A (IL-17A)) which elicited liver damaged in the DMBA-treated group. DMBA induced hepatic alterations in DMBA-treated group but was restored to near normal in VK (7.5 g/10 kg) diet group. These findings suggest the protective potential of increased dietary intake of vitamin K against DMBA-induced hepatic dysfunction.
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Affiliation(s)
| | | | | | - Adio Jamiu Akamo
- Department of Biochemistry, Federal University of Agriculture, Abeokuta, Nigeria
| | | | - Odunayo Anthonia Taiwo
- Department of Biochemistry, Federal University of Agriculture, Abeokuta, Nigeria
- Department of Biochemistry, Chrisland University, Abeokuta, Nigeria
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Xiao H, Chen J, Duan L, Li S. Role of emerging vitamin K‑dependent proteins: Growth arrest‑specific protein 6, Gla‑rich protein and periostin (Review). Int J Mol Med 2021; 47:2. [PMID: 33448308 PMCID: PMC7834955 DOI: 10.3892/ijmm.2020.4835] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 10/21/2020] [Indexed: 01/27/2023] Open
Abstract
Vitamin K‑dependent proteins (VKDPs) are a group of proteins that need vitamin K to conduct carboxylation. Thus far, scholars have identified a total of 17 VKDPs in the human body. In this review, we summarize three important emerging VKDPs: Growth arrest‑specific protein 6 (Gas 6), Gla‑rich protein (GRP) and periostin in terms of their functions in physiological and pathological conditions. As examples, carboxylated Gas 6 and GRP effectively protect blood vessels from calcification, Gas 6 protects from acute kidney injury and is involved in chronic kidney disease, GRP contributes to bone homeostasis and delays the progression of osteoarthritis, and periostin is involved in all phases of fracture healing and assists myocardial regeneration in the early stages of myocardial infarction. However, periostin participates in the progression of cardiac fibrosis, idiopathic pulmonary fibrosis and airway remodeling of asthma. In addition, we discuss the relationship between vitamin K, VKDPs and cancer, and particularly the carboxylation state of VKDPs in cancer.
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Affiliation(s)
- Huiyu Xiao
- Department of Physiology, Dalian Medical University, Dalian, Liaoning 116044
| | - Jiepeng Chen
- Sungen Bioscience Co., Ltd., Shantou, Guangdong 515071, P.R. China
| | - Lili Duan
- Sungen Bioscience Co., Ltd., Shantou, Guangdong 515071, P.R. China
| | - Shuzhuang Li
- Department of Physiology, Dalian Medical University, Dalian, Liaoning 116044
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AlHajri L, Ayoub A, Ahmed H, AlMulla M. Effect of Vitamin K2 Alone or in Combination on Various Bone Turnover Markers Amongst Postmenopausal Females. J Bone Metab 2021; 28:11-26. [PMID: 33730780 PMCID: PMC7973400 DOI: 10.11005/jbm.2021.28.1.11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 01/28/2021] [Indexed: 11/27/2022] Open
Abstract
Background Osteoporosis is common in postmenopausal women. Some studies have demonstrated the usefulness of vitamin K through the action of bone-specific proteins and osteoblast and osteoclast activities. However, no systematic review had explored this aspect in postmenopausal women. Hence, this systematic review aimed to explore the effect of vitamin K2 alone or in combination with other agents (vitamin D3 or calcium) on various bone turnover markers (BTMs) and bone mineral density (BMD) in postmenopausal women. Methods MEDLINE, ScienceDirect, PubMed, and Google Scholar were searched to identify relevant studies using specific inclusion criteria. Data extraction and quality assessment were carried out using standardized tests, and the results were narratively synthesized and presented in the form of tables. Results Vitamin K2 was beneficial in inducing an improvement or preventing deterioration, as evidenced by the BMD and osteocalcin (OC), undercarboxylated OC (ucOC), carboxylated OC (cOC), and γ-carboxylated OC levels. However, its effect was not conclusive when procollagen type 1 N-terminal propeptide, carboxyterminal propeptide of type I procollagen, C-terminal telopeptide of type I collagen, bone alkaline phosphatase, deoxypyridinoline, and N-terminal telopeptide levels (NTX) and ucOC:cOC or cOC:ucOC, and NTX:creatinine ratios were examined. Conclusions Vitamin K2 supplementation combined with vitamin D and calcium was found to be advantageous. However, vitamin K2 supplementation cannot replace the existing treatment options. In addition, vitamin K2 should be used with caution, considering its interactions with food and other drugs.
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Affiliation(s)
- Lamia AlHajri
- Department of Health Sciences and Pharmacy, Higher Colleges of Technology, Dubai, United Arab Emirates.,Department of Health Research, Lancaster University, Lancaster, UK
| | - Amna Ayoub
- United Arab Emirates University, Al Ain, United Arab Emirates
| | - Hessa Ahmed
- Department of Health Sciences and Pharmacy, Higher Colleges of Technology, Dubai, United Arab Emirates
| | - Marwa AlMulla
- Department of Health Sciences and Pharmacy, Higher Colleges of Technology, Dubai, United Arab Emirates
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Abstract
Prevalent coagulopathy and thromboembolism are observed in severe COVID-19 patients with 40% of COVID-19 mortality being associated with cardiovascular complications. Abnormal coagulation parameters are related to poor prognosis in COVID-19 patients. Victims also displayed presence of extensive thrombosis in infected lungs. Vitamin K is well-known to play an essential role in the coagulation system. Latest study revealed an existing correlation between vitamin K deficiency and COVID-19 severity, highlighting a role of vitamin K, probably via coagulation modulation. In agreement, other recent studies also indicated that anti-coagulant treatments can reduce mortality in severe cases. Altogether, potential mechanisms linking COVID-19 with coagulopathy in which vitamin K may exert its modulating role in coagulation related with disease pathogenesis are established. In this review, we discuss the recent evidence supporting COVID-19 as a vascular disease and explore the potential benefits of using vitamin K against COVID-19 to improve disease outcomes.
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Camelo-Castillo A, Rivera-Caravaca JM, Orenes-Piñero E, Ramírez-Macías I, Roldán V, Lip GYH, Marín F. Gut Microbiota and the Quality of Oral Anticoagulation in Vitamin K Antagonists Users: A Review of Potential Implications. J Clin Med 2021; 10:715. [PMID: 33670220 PMCID: PMC7916955 DOI: 10.3390/jcm10040715] [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: 01/25/2021] [Accepted: 02/08/2021] [Indexed: 12/31/2022] Open
Abstract
The efficacy and safety of vitamin K antagonists (VKAs) as oral anticoagulants (OACs) depend on the quality of anticoagulation control, as reflected by the mean time in therapeutic range (TTR). Several factors may be involved in poor TTR such as comorbidities, high inter-individual variability, interacting drugs, and non-adherence. Recent studies suggest that gut microbiota (GM) plays an important role in the pathogenesis of cardiovascular diseases, but the effect of the GM on anticoagulation control with VKAs is unknown. In the present review article, we propose different mechanisms by which the GM could have an impact on the quality of anticoagulation control in patients taking VKA therapy. We suggest that the potential effects of GM may be mediated first, by an indirect effect of metabolites produced by GM in the availability of VKAs drugs; second, by an effect of vitamin K-producing bacteria; and finally, by the structural modification of the molecules of VKAs. Future research will help confirm these hypotheses and may suggest profiles of bacterial signatures or microbial metabolites, to be used as biomarkers to predict the quality of anticoagulation. This could lead to the design of intervention strategies modulating gut microbiota, for example, by using probiotics.
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Affiliation(s)
- Anny Camelo-Castillo
- Department of Cardiology, Hospital Clínico Universitario Virgen de la Arrixaca, University of Murcia, Instituto Murciano de Investigación Biosanitaria (IMIB-Arrixaca), CIBERCV, 30120 Murcia, Spain; (A.C.-C.); (J.M.R.-C.); (I.R.-M.)
| | - José Miguel Rivera-Caravaca
- Department of Cardiology, Hospital Clínico Universitario Virgen de la Arrixaca, University of Murcia, Instituto Murciano de Investigación Biosanitaria (IMIB-Arrixaca), CIBERCV, 30120 Murcia, Spain; (A.C.-C.); (J.M.R.-C.); (I.R.-M.)
- Liverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart and Chest Hospital, Liverpool L7 8TX, UK;
| | - Esteban Orenes-Piñero
- Department of Biochemistry and Molecular Biology-A, University of Murcia, Instituto Murciano de Investigación Biosanitaria (IMIB-Arrixaca), CIBERCV, 30120 Murcia, Spain;
| | - Inmaculada Ramírez-Macías
- Department of Cardiology, Hospital Clínico Universitario Virgen de la Arrixaca, University of Murcia, Instituto Murciano de Investigación Biosanitaria (IMIB-Arrixaca), CIBERCV, 30120 Murcia, Spain; (A.C.-C.); (J.M.R.-C.); (I.R.-M.)
| | - Vanessa Roldán
- Department of Hematology and Clinical Oncology, Hospital General Universitario Morales Meseguer, University of Murcia, 30008 Murcia, Spain;
| | - Gregory Y. H. Lip
- Liverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart and Chest Hospital, Liverpool L7 8TX, UK;
- Department of Clinical Medicine, Aalborg Thrombosis Research Unit, Aalborg University, 9000 Aalborg, Denmark
| | - Francisco Marín
- Department of Cardiology, Hospital Clínico Universitario Virgen de la Arrixaca, University of Murcia, Instituto Murciano de Investigación Biosanitaria (IMIB-Arrixaca), CIBERCV, 30120 Murcia, Spain; (A.C.-C.); (J.M.R.-C.); (I.R.-M.)
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Florea A, Sigl JP, Morgenroth A, Vogg A, Sahnoun S, Winz OH, Bucerius J, Schurgers LJ, Mottaghy FM. Sodium [ 18F]Fluoride PET Can Efficiently Monitor In Vivo Atherosclerotic Plaque Calcification Progression and Treatment. Cells 2021; 10:cells10020275. [PMID: 33573188 PMCID: PMC7911917 DOI: 10.3390/cells10020275] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/07/2021] [Accepted: 01/27/2021] [Indexed: 12/13/2022] Open
Abstract
Given the high sensitivity and specificity of sodium [18F]Fluoride (Na[18F]F) for vascular calcifications and positive emerging data of vitamin K on vascular health, the aim of this study is to assess the ability of Na[18F]F to monitor therapy and disease progression in a unitary atherosclerotic mouse model. ApoE−/− mice were placed on a Western-type diet for 12-weeks and then split into four groups. The early stage atherosclerosis group received a chow diet for an additional 12-weeks, while the advanced atherosclerosis group continued the Western-type diet. The Menaquinone-7 (MK-7) and Warfarin groups received MK-7 or Warfarin supplementation during the additional 12-weeks, respectively. Control wild type mice were fed a chow diet for 24-weeks. All of the mice were scanned with Na[18F]F using a small animal positron emission tomography (PET)/computed tomography (CT). The Warfarin group presented spotty calcifications on the CT in the proximal aorta. All of the spots corresponded to dense mineralisations on the von Kossa staining. After the control, the MK-7 group had the lowest Na[18F]F uptake. The advanced and Warfarin groups presented the highest uptake in the aortic arch and left ventricle. The advanced stage group did not develop spotty calcifications, however Na[18F]F uptake was still observed, suggesting the presence of micro-calcifications. In a newly applied mouse model, developing spotty calcifications on CT exclusively in the proximal aorta, Na[18F]F seems to efficiently monitor plaque progression and the beneficial effects of vitamin K on cardiovascular disease.
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Affiliation(s)
- Alexandru Florea
- Department of Nuclear Medicine, University Hospital RWTH Aachen, 52074 Aachen, Germany; (A.F.); (J.P.S.); (A.M.); (A.V.); (S.S.); (O.H.W.)
- Department of Radiology and Nuclear Medicine, Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands;
- School for Cardiovascular Diseases (CARIM), Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands;
| | - Julius P. Sigl
- Department of Nuclear Medicine, University Hospital RWTH Aachen, 52074 Aachen, Germany; (A.F.); (J.P.S.); (A.M.); (A.V.); (S.S.); (O.H.W.)
| | - Agnieszka Morgenroth
- Department of Nuclear Medicine, University Hospital RWTH Aachen, 52074 Aachen, Germany; (A.F.); (J.P.S.); (A.M.); (A.V.); (S.S.); (O.H.W.)
| | - Andreas Vogg
- Department of Nuclear Medicine, University Hospital RWTH Aachen, 52074 Aachen, Germany; (A.F.); (J.P.S.); (A.M.); (A.V.); (S.S.); (O.H.W.)
| | - Sabri Sahnoun
- Department of Nuclear Medicine, University Hospital RWTH Aachen, 52074 Aachen, Germany; (A.F.); (J.P.S.); (A.M.); (A.V.); (S.S.); (O.H.W.)
| | - Oliver H. Winz
- Department of Nuclear Medicine, University Hospital RWTH Aachen, 52074 Aachen, Germany; (A.F.); (J.P.S.); (A.M.); (A.V.); (S.S.); (O.H.W.)
| | - Jan Bucerius
- Department of Radiology and Nuclear Medicine, Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands;
- School for Cardiovascular Diseases (CARIM), Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands;
- Department of Nuclear Medicine, University of Göttingen, 37075 Göttingen, Germany
| | - Leon J. Schurgers
- School for Cardiovascular Diseases (CARIM), Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands;
- Department of Biochemistry, Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands
- Institute of Experimental Medicine and Systems Biology, RWTH Aachen University, 52074 Aachen, Germany
| | - Felix M. Mottaghy
- Department of Nuclear Medicine, University Hospital RWTH Aachen, 52074 Aachen, Germany; (A.F.); (J.P.S.); (A.M.); (A.V.); (S.S.); (O.H.W.)
- Department of Radiology and Nuclear Medicine, Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands;
- School for Cardiovascular Diseases (CARIM), Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands;
- Correspondence: ; Tel.: +49-241-80-88741
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Rønn SH, Harsløf T, Oei L, Pedersen SB, Langdahl BL. The effect of vitamin MK-7 on bone mineral density and microarchitecture in postmenopausal women with osteopenia, a 3-year randomized, placebo-controlled clinical trial. Osteoporos Int 2021; 32:185-191. [PMID: 33030563 DOI: 10.1007/s00198-020-05638-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 09/11/2020] [Indexed: 11/28/2022]
Abstract
UNLABELLED We conducted a randomized placebo-controlled double-blinded clinical trial of MK-7 or placebo daily for 3 years in postmenopausal women with osteopenia. BMD decreased at all sites without differences between the MK-7 and placebo-treated women. Changes in bone turnover markers and microstructure were similar between the two groups. INTRODUCTION Vitamin K is a cofactor in the carboxylation of osteocalcin (OC) and carboxylated OC promotes mineralization of bone. Clinical studies suggest that vitamin K2 prevents bone loss. The aim of the study was to investigate the effect of vitamin K2 as an add-on to calcium and vitamin D supplementation on osteocalcin, bone mass, and microarchitecture in postmenopausal women. METHODS We conducted a randomized placebo-controlled double-blinded clinical trial, including 142 postmenopausal women with osteopenia who received vitamin K2 (375 μg MK-7) or placebo daily for 3 years. Both groups received vitamin D3 (38 μg/day) and calcium (800 mg/day). We measured bone turnover markers in serum and bone mineral density and microarchitecture by DXA and HRpQCT. RESULTS Undercarboxylated osteocalcin decreased in the MK-7-group (- 65.2 ± 23.5%) (mean ± SD) compared with the placebo group (- 0.03 ± 38.5%), p < 0.01 after 1 year. After 3 years, aBMD decreased at all sites without differences between the MK-7 and placebo-treated women (p > 0.09). aBMD decreased at the total hip by 1.5 ± 2.5% and 2.4 ± 2.7% in the MK-7 and the placebo groups, respectively, at the femoral neck by 1.5 ± 3.5% and 1.0 ± 5.0% in the MK-7 and the placebo groups, respectively, and at the lumbar spine by 1.8 ± 3.9% and 1.1 ± 3.1% in the MK-7 and the placebo groups, respectively. Changes in bone turnover markers were also similar between the two groups.We have previously reported improved microarchitecture with MK-7 after 1 year. However, changes in microstructure over 3 years were similar between the two groups, as assessed by both HRpQCT and DXA trabecular bone score. CONCLUSION Treatment with MK-7 375 μg daily as an add-on to calcium and vitamin D increased carboxylation of osteocalcin. However, treatment of postmenopausal women with osteopenia for 3 years did not affect biochemical markers of bone turnover, bone mineral density, or bone microarchitecture. TRIAL REGISTRATION The study was registered at Clinicaltrial.gov : NCT01922804 .
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Affiliation(s)
- S H Rønn
- Aarhus University Hospital, Palle Juul-Jensen Boulevard 99, 8200, Aarhus N, Denmark
| | - T Harsløf
- Aarhus University Hospital, Palle Juul-Jensen Boulevard 99, 8200, Aarhus N, Denmark
| | - L Oei
- Aarhus University Hospital, Palle Juul-Jensen Boulevard 99, 8200, Aarhus N, Denmark
- Erasmus Medical Center, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | - S B Pedersen
- Aarhus University Hospital, Palle Juul-Jensen Boulevard 99, 8200, Aarhus N, Denmark
| | - B L Langdahl
- Aarhus University Hospital, Palle Juul-Jensen Boulevard 99, 8200, Aarhus N, Denmark.
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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: 53] [Impact Index Per Article: 17.7] [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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Synergistic factors ensue high expediency in the synthesis of menaquinone [K2] analogue MK-6: Application to access an efficient one-pot protocol to MK-9. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131696] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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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:E3625. [PMID: 33255760 PMCID: PMC7760385 DOI: 10.3390/nu12123625] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [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
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Wang K, Wu Q, Li Z, Reger MK, Xiong Y, Zhong G, Li Q, Zhang X, Li H, Foukakis T, Xiang T, Zhang J, Ren G. Vitamin K intake and breast cancer incidence and death: results from a prospective cohort study. Clin Nutr 2020; 40:3370-3378. [PMID: 33277073 DOI: 10.1016/j.clnu.2020.11.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 10/20/2020] [Accepted: 11/06/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Vitamin K prevents growth and metastasis of certain cancers, but there is little evidence regarding the association between dietary vitamin K and breast cancer incidence and death. We sought to examine whether intakes of total vitamin K, phylloquinone (vitamin K1) and menaquinones (MKs) (vitamin K2) may influence risks of breast cancer incidence and death in the US population. METHODS Herein, 2286 breast cancer cases and 207 breast cancer deaths were identified during 702,748 person-years of follow-up. Cox regression and competing risk regression were used to estimate multivariable-adjusted hazards ratios (HRs) and 95% confidence intervals (95% CIs) by dietary vitamin K intake quintile (Q) for risk of breast cancer incidence and mortality. RESULTS After adjustment for confounders, the total MK intake was associated with an increased risk of breast cancer (HR Q5 vs Q1, 1.26; 95% CI, 1.05 to 1.52; Ptrend, 0.01) and death from breast cancer (HR Q5 vs Q1, 1.71; 95% CI, 0.97 to 3.01; Ptrend, 0.04). Non-linear positive dose-response associations with risks of breast cancer incidence and death were found for total MKs intake (Pnon-linearity<0.05). No statistically significant associations were observed between the intake of total vitamin K and phylloquinone and breast cancer. CONCLUSIONS The present study suggests that total MK intake was associated with an altered risk of the occurrence and death of breast cancer in the general US population. If our findings are replicated in other epidemiological studies, reducing dietary intake of menaquinones may offer a novel strategy for breast cancer prevention.
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Affiliation(s)
- Kang Wang
- Department of Endocrine and Breast Surgery, The First Affiliated hospital of Chongqing Medical University, Chongqing Medical University, Chongqing, 400016, China; Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; Department of Oncology-Pathology, Karolinska Institutet, 17164, Stockholm, Sweden
| | - Qianxue Wu
- Department of Endocrine and Breast Surgery, The First Affiliated hospital of Chongqing Medical University, Chongqing Medical University, Chongqing, 400016, China
| | - Zhuyue Li
- West China Hospital / West China School of Nursing, Sichuan University, Chengdu, China
| | - Michael K Reger
- College of Health Professions Ferris State University, 200 Ferris Drive, VFS 300B, Big Rapids, MI, 49307, USA
| | - Yongfu Xiong
- The First Department of Hepatobiliary Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637007, China
| | - Guochao Zhong
- Department of Hepatobiliary Surgery, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qing Li
- Department of Endocrine and Breast Surgery, The First Affiliated hospital of Chongqing Medical University, Chongqing Medical University, Chongqing, 400016, China
| | - Xiang Zhang
- Department of Endocrine and Breast Surgery, The First Affiliated hospital of Chongqing Medical University, Chongqing Medical University, Chongqing, 400016, China
| | - Hongyuan Li
- Department of Endocrine and Breast Surgery, The First Affiliated hospital of Chongqing Medical University, Chongqing Medical University, Chongqing, 400016, China
| | - Theodoros Foukakis
- Department of Oncology-Pathology, Karolinska Institutet, 17164, Stockholm, Sweden; Breast Center, Theme Cancer, Karolinska University Hospital, 17176, Stockholm, Sweden
| | - Tingxiu Xiang
- Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
| | - Jianjun Zhang
- Department of Epidemiology, Fairbanks School of Public Health Melvin and Bren Simon Comprehensive Cancer Center Indiana University, 1050 Wishard Boulevard, RG5118, Indianapolis, IN, 46202, USA.
| | - Guosheng Ren
- Department of Endocrine and Breast Surgery, The First Affiliated hospital of Chongqing Medical University, Chongqing Medical University, Chongqing, 400016, China; Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
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71
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O’Sullivan SM, E. Ball ME, McDonald E, Hull GLJ, Danaher M, Cashman KD. Biofortification of Chicken Eggs with Vitamin K-Nutritional and Quality Improvements. Foods 2020; 9:E1619. [PMID: 33172200 PMCID: PMC7694954 DOI: 10.3390/foods9111619] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/01/2020] [Accepted: 11/02/2020] [Indexed: 11/17/2022] Open
Abstract
National nutrition surveys have shown that over half of all adults in Ireland, the United Kingdom (UK), and the United States of America (USA) have low vitamin K intakes. Thus, dietary strategies to improve vitamin K intakes are needed, and vitamin K biofortification of food may be one food-based approach. The primary aim of our study was to establish whether increasing the vitamin K3 content of hen feed can increase the vitamin K content of eggs, and the secondary aims were to examine the effects on hen performance parameters, as well as egg and eggshell quality parameters. A 12 week hen feeding trial was conducted in which Hyline chickens were randomized into four treatment groups (n = 32/group) and fed diets containing vitamin K3 (as menadione nicotinamide bisulfite) at 3 (control), 12.9, 23.7, and 45.7 mg/kg feed. Vitamin K1, menaquinone (MK)-4, MK-7, and MK-9 were measured in raw whole eggs via a liquid chromatography tandem mass spectrometry method. MK-4 was the most abundant form of vitamin K (91-98%) found in all eggs. Increasing the vitamin K3 content of hen feed over the control level significantly (p < 0.001) enhanced the MK-4 content of eggs (mean range: 46-51 µg/100 g, representing ~42-56% of US Adequate Intake values). Vitamin K biofortification also led to significant (p < 0.05) increases in the yellowness of egg yolk and in eggshell weight and thickness, but no other changes in egg quality or hen performance parameters. In conclusion, high-quality vitamin K-biofortified eggs can be produced with at least double the total vitamin K content compared to that in commercially available eggs.
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Affiliation(s)
- Siobhan M. O’Sullivan
- Cork Centre for Vitamin D and Nutrition Research, School of Food and Nutritional Sciences, University College Cork, Cork T12 Y337, Ireland;
| | - M. Elizabeth E. Ball
- Agri-Food and Biosciences Institute, Veterinary Sciences Division, Stoney Road, Stormont Belfast BT4 3SD, Northern Ireland, UK;
| | - Emma McDonald
- Devenish Nutrition Ltd., Belfast BT1 3BG, Northern Ireland, UK;
| | - George L. J. Hull
- Food Safety Department, Teagasc Food Research Centre, Ashtown, Dublin D15 DY 05, Ireland; (G.L.J.H.); (M.D.)
| | - Martin Danaher
- Food Safety Department, Teagasc Food Research Centre, Ashtown, Dublin D15 DY 05, Ireland; (G.L.J.H.); (M.D.)
| | - Kevin D. Cashman
- Cork Centre for Vitamin D and Nutrition Research, School of Food and Nutritional Sciences, University College Cork, Cork T12 Y337, Ireland;
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72
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Bartstra JW, Draaisma F, Zwakenberg SR, Lessmann N, Wolterink JM, van der Schouw YT, de Jong PA, Beulens JWJ. Six months vitamin K treatment does not affect systemic arterial calcification or bone mineral density in diabetes mellitus 2. Eur J Nutr 2020; 60:1691-1699. [PMID: 33068157 PMCID: PMC7987615 DOI: 10.1007/s00394-020-02412-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 10/06/2020] [Indexed: 12/11/2022]
Abstract
PURPOSE Vitamin K-dependent proteins are involved in (patho)physiological calcification of the vasculature and the bones. Type 2 diabetes mellitus (DM2) is associated with increased arterial calcification and increased fractures. This study investigates the effect of 6 months vitamin K2 supplementation on systemic arterial calcification and bone mineral density (BMD) in DM2 patients with a history of cardiovascular disease (CVD). METHODS In this pre-specified, post hoc analysis of a double-blind, randomized, controlled clinical trial, patients with DM2 and CVD were randomized to a daily, oral dose of 360 µg vitamin K2 or placebo for 6 months. CT scans were made at baseline and follow-up. Arterial calcification mass was quantified in several large arterial beds and a total arterial calcification mass score was calculated. BMD was assessed in all non-fractured thoracic and lumbar vertebrae. RESULTS 68 participants were randomized, 35 to vitamin K2 (33 completed follow-up) and 33 to placebo (27 completed follow-up). The vitamin K group had higher arterial calcification mass at baseline [median (IQR): 1694 (812-3584) vs 1182 (235-2445)] for the total arterial calcification mass). Six months vitamin K supplementation did not reduce arterial calcification progression (β [95% CI]: - 0.02 [- 0.10; 0.06] for the total arterial calcification mass) or slow BMD decline (β [95% CI]: - 2.06 [- 11.26; 7.30] Hounsfield units for all vertebrae) when compared to placebo. CONCLUSION Six months vitamin K supplementation did not halt progression of arterial calcification or decline of BMD in patients with DM2 and CVD. Future clinical trials may want to pre-select patients with very low vitamin K status and longer follow-up time might be warranted. This trial was registered at clinicaltrials.gov as NCT02839044.
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Affiliation(s)
- Jonas W Bartstra
- Department of Radiology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Fieke Draaisma
- Department of Radiology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Sabine R Zwakenberg
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Nikolas Lessmann
- Diagnostic Image Analysis Group, Department of Radiology and Nuclear Medicine, Radboudumc, Nijmegen, The Netherlands
| | - Jelmer M Wolterink
- Department of Applied Mathematics, Technical Medical Centre, University of Twente, Enschede, The Netherlands
| | - Yvonne T van der Schouw
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Pim A de Jong
- Department of Radiology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Joline W J Beulens
- Department of Epidemiology and Data Science, Amsterdam University Medical Centers, Location VUmc, Amsterdam Public Health and Amsterdam Cardiovascular Sciences Research Institutes, Postbox 7057, 1007 MB, Amsterdam, The Netherlands.
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73
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Lee HJ, Shin C, Chun YS, Kim J, Jung H, Choung J, Shim SM. Physicochemical properties and bioavailability of naturally formulated fat-soluble vitamins extracted from agricultural products for complementary use for natural vitamin supplements. Food Sci Nutr 2020; 8:5660-5672. [PMID: 33133568 PMCID: PMC7590293 DOI: 10.1002/fsn3.1804] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 07/06/2020] [Accepted: 07/14/2020] [Indexed: 12/18/2022] Open
Abstract
The purpose of the current study was to evaluate the physicochemical properties, digestive stability, storage stability, and intestinal absorption of formulated natural vitamins (FNV) by mixing fat-soluble vitamins extracted from agricultural products with their synthetic vitamin (SYNV) counterparts using a 6 to 4 ratio (w:w, dry weight). The FNV A, D, E, and K were evenly dispersed without crystal growth in the dispersion specifications for the functional tablet foods. The FNV A, D, E, and K had 89, 73, 65, and 36% of the digestive recovery, respectively, which was comparable to that of the SYNV. FNV D, E, and K were retained over 77%, but rapidly decreased to 15% after 6 months during accelerated storage at 25 30 and 35℃. The comparable radical scavenging capacity was found between the FNV and the SYNV. Results from the current study suggest that fat-soluble vitamins extracted from agricultural products could be reasonable complementary use for natural vitamin supplements.
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Affiliation(s)
- Hyun Jeong Lee
- Department of Food Science and BiotechnologySejong UniversitySeoulRepublic of Korea
| | - Changho Shin
- Department of Sports ScienceSungkyunkwan UniversityGyeonggi‐doRepublic of Korea
| | | | - Jongkyu Kim
- Aribio Co., Ltd.Gyeonggi‐doRepublic of Korea
| | - Hansang Jung
- Department of Physical EducationKangnam UniversityGyeonggi‐doRepublic of Korea
| | | | - Soon Mi Shim
- Department of Food Science and BiotechnologySejong UniversitySeoulRepublic of Korea
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74
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Braasch-Turi M, Crans DC. Synthesis of Naphthoquinone Derivatives: Menaquinones, Lipoquinones and Other Vitamin K Derivatives. Molecules 2020; 25:molecules25194477. [PMID: 33003459 PMCID: PMC7582351 DOI: 10.3390/molecules25194477] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 09/26/2020] [Accepted: 09/27/2020] [Indexed: 12/20/2022] Open
Abstract
Menaquinones are a class of isoprenoid molecules that have important roles in human biology and bacterial electron transport, and multiple methods have been developed for their synthesis. These compounds consist of a methylnaphthoquinone (MK) unit and an isoprene side chain, such as found in vitamin K1 (phylloquinone), K2, and other lipoquinones. The most common naturally occurring menaquinones contain multiple isoprene units and are very hydrophobic, rendering it difficult to evaluate the biological activity of these compounds in aqueous assays. One way to overcome this challenge has been the application of truncated MK-derivatives for their moderate solubility in water. The synthesis of such derivatives has been dominated by Friedel-Crafts alkylation with BF3∙OEt2. This attractive method occurs over two steps from commercially available starting materials, but it generally produces low yields and a mixture of isomers. In this review, we summarize reported syntheses of both truncated and naturally occurring MK-derivatives that encompass five different synthetic strategies: Nucleophilic ring methods, metal-mediated reactions, electrophilic ring methods, pericyclic reactions, and homologation and side chain extensions. The advantages and disadvantages of each method are discussed, identifying methods with a focus on high yields, regioselectivity, and stereochemistry leading to a detailed overview of the reported chemistry available for preparation of these compounds.
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Affiliation(s)
| | - Debbie C. Crans
- Chemistry Department, Colorado State University, Ft. Collins, CO 80525, USA;
- Cell & Molecular Biology Program, Colorado State University, Ft. Collins, CO 80525, USA
- Correspondence:
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75
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Dofferhoff ASM, Piscaer I, Schurgers LJ, Visser MPJ, van den Ouweland JMW, de Jong PA, Gosens R, Hackeng TM, van Daal H, Lux P, Maassen C, Karssemeijer EGA, Vermeer C, Wouters EFM, Kistemaker LEM, Walk J, Janssen R. Reduced vitamin K status as a potentially modifiable risk factor of severe COVID-19. Clin Infect Dis 2020; 73:e4039-e4046. [PMID: 32852539 PMCID: PMC7499546 DOI: 10.1093/cid/ciaa1258] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 08/25/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Respiratory failure and thromboembolism are frequent in SARS-CoV-2-infected patients. Vitamin K activates both hepatic coagulation factors and extrahepatic endothelial anticoagulant protein S, required for thrombosis prevention. In times of vitamin K insufficiency, hepatic procoagulant factors are preferentially activated over extrahepatic proteins. Vitamin K also activates matrix Gla protein (MGP), which protects against pulmonary and vascular elastic fiber damage. We hypothesized that vitamin K may be implicated in coronavirus disease 2019 (COVID-19), linking pulmonary and thromboembolic disease. METHODS 135 hospitalized COVID-19 patients were compared with 184 historical controls. Poor outcome was defined as invasive ventilation and/or death. Inactive vitamin K-dependent MGP (dp-ucMGP) and prothrombin (PIVKA-II) were measured, inversely related to extrahepatic and hepatic vitamin K status, respectively. Desmosine was measured to quantify the rate of elastic fiber degradation. Arterial calcification severity was assessed by computed tomography. RESULTS Dp-ucMGP was elevated in COVID-19 patients compared to controls (p<0.001), with even higher dp-ucMGP in patients with poor outcomes (p<0.001). PIVKA-II was normal in 82.1% of patients. Dp-ucMGP was correlated with desmosine (p<0.001), and coronary artery (p=0.002) and thoracic aortic (p<0.001) calcification scores. CONCLUSIONS Dp-ucMGP was severely increased in COVID-19 patients, indicating extrahepatic vitamin K insufficiency, which was related to poor outcome while hepatic procoagulant factor II remained unaffected. These data suggest a mechanism of pneumonia-induced extrahepatic vitamin K depletion leading to accelerated elastic fiber damage and thrombosis in severe COVID-19 due to impaired activation of MGP and endothelial protein S, respectively. A clinical trial could assess whether vitamin K administration improves COVID-19 outcomes.
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Affiliation(s)
- Anton S M Dofferhoff
- Department of Internal Medicine, Canisius-Wilhelmina Hospital, Nijmegen, The Netherlands
| | - Ianthe Piscaer
- Department of Respiratory Medicine, Maastricht University Medical Center+, Maastricht, The Netherlands
| | - Leon J Schurgers
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | - Margot P J Visser
- Department of Pulmonary Medicine, Canisius-Wilhelmina Hospital, Nijmegen, The Netherlands
| | | | - Pim A de Jong
- Department of Radiology, University Medical Center Utrecht and Utrecht University, The Netherlands
| | - Reinoud Gosens
- Department of Molecular Pharmacology, University of Groningen, Groningen, The Netherlands
| | - Tilman M Hackeng
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | - Henny van Daal
- Department of Clinical Chemistry, Canisius-Wilhelmina Hospital, Nijmegen, The Netherlands
| | - Petra Lux
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | - Cecile Maassen
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | | | - Cees Vermeer
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | - Emiel F M Wouters
- Department of Respiratory Medicine, Maastricht University Medical Center+, Maastricht, The Netherlands.,Ludwig Boltzmann Institute for Lung Health, Vienna, Austria
| | | | - Jona Walk
- Department of Internal Medicine, Canisius-Wilhelmina Hospital, Nijmegen, The Netherlands
| | - Rob Janssen
- Department of Pulmonary Medicine, Canisius-Wilhelmina Hospital, Nijmegen, The Netherlands
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76
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Caluwé R, Verbeke F, De Vriese AS. Evaluation of vitamin K status and rationale for vitamin K supplementation in dialysis patients. Nephrol Dial Transplant 2020; 35:23-33. [PMID: 30590803 DOI: 10.1093/ndt/gfy373] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Accepted: 11/09/2018] [Indexed: 01/07/2023] Open
Abstract
The cardinal biological role of vitamin K is to act as cofactor for the carboxylation of a number of vitamin K-dependent proteins, some of which are essential for coagulation, bone formation and prevention of vascular calcification. Functional vitamin K deficiency is common and severe among dialysis patients and has garnered attention as a modifiable risk factor in this population. However, no single biochemical parameter can adequately assess vitamin K status. For each biological function of vitamin K, the degree of carboxylation of the relevant vitamin K-dependent protein most accurately reflects vitamin K status. Dephosphorylated uncarboxylated matrix Gla protein (dp-ucMGP) is the best biomarker for vascular vitamin K status when cardiovascular endpoints are studied. Dp-ucMGP levels are severely elevated in haemodialysis patients and correlate with markers of vascular calcification and mortality in some but not all studies. The aetiology of vitamin K deficiency in haemodialysis is multifactorial, including deficient intake, uraemic inhibition of the vitamin K cycle and possibly interference of vitamin K absorption by phosphate binders. The optimal vitamin K species, dose and duration of supplementation to correct vitamin K status in dialysis patients are unknown. Dp-ucMGP levels dose-proportionally decrease with supraphysiological vitamin K2 supplementation, but do not normalize even with the highest doses. In the general population, long-term vitamin K1 or K2 supplementation has beneficial effects on cardiovascular disease, bone density and fracture risk, and insulin resistance, although some studies reported negative results. In haemodialysis patients, several trials on the effects of vitamin K on surrogate markers of vascular calcification are currently ongoing.
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Affiliation(s)
- Rogier Caluwé
- Division of Nephrology, Department of Internal Medicine, OLVZ Aalst, Belgium
| | - Francis Verbeke
- Division of Nephrology, Department of Internal Medicine, University Hospital, Ghent, Belgium
| | - An S De Vriese
- Division of Nephrology and Infectious Diseases, Department of Internal Medicine, AZ Sint-Jan Brugge, Brugge, and Ghent University, Ghent, Belgium
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77
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Vitamin K Nutrition and Bone Health. Nutrients 2020; 12:nu12071909. [PMID: 32605143 PMCID: PMC7399911 DOI: 10.3390/nu12071909] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/22/2020] [Accepted: 06/25/2020] [Indexed: 01/22/2023] Open
Abstract
Vitamin K is essential for blood coagulation and plays an important role in extrahepatic metabolism, such as in bone and blood vessels, and in energy metabolism. This review discusses the assessment of vitamin K sufficiency and the role of vitamin K in bone health. To elucidate the exact role of vitamin K in other organs, accurate tools for assessing vitamin K deficiency or insufficiency are crucial. Undercarboxylated vitamin K-dependent protein levels can be measured to evaluate tissue-specific vitamin K deficiency/insufficiency. Vitamin K has genomic action through steroid and xenobiotic receptor (SXR); however, the importance of this action requires further study. Recent studies have revealed that the bone-specific, vitamin K-dependent protein osteocalcin has a close relationship with energy metabolism through insulin sensitivity. Among the organs that produce vitamin K-dependent proteins, bone has attracted the most attention, as vitamin K deficiency has been consistently associated with bone fractures. Although vitamin K treatment addresses vitamin K deficiency and is believed to promote bone health, the corresponding findings on fracture risk reduction are conflicting. We also discuss the similarity of other vitamin supplementations on fracture risk. Future clinical studies are needed to further elucidate the effect of vitamin K on fracture risk.
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78
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Akbulut AC, Pavlic A, Petsophonsakul P, Halder M, Maresz K, Kramann R, Schurgers L. Vitamin K2 Needs an RDI Separate from Vitamin K1. Nutrients 2020; 12:E1852. [PMID: 32575901 PMCID: PMC7353270 DOI: 10.3390/nu12061852] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/16/2020] [Accepted: 06/17/2020] [Indexed: 02/06/2023] Open
Abstract
Vitamin K and its essential role in coagulation (vitamin K [Koagulation]) have been well established and accepted the world over. Many countries have a Recommended Daily Intake (RDI) for vitamin K based on early research, and its necessary role in the activation of vitamin K-dependent coagulation proteins is known. In the past few decades, the role of vitamin K-dependent proteins in processes beyond coagulation has been discovered. Various isoforms of vitamin K have been identified, and vitamin K2 specifically has been highlighted for its long half-life and extrahepatic activity, whereas the dietary form vitamin K1 has a shorter half-life. In this review, we highlight the specific activity of vitamin K2 based upon proposed frameworks necessary for a bioactive substance to be recommended for an RDI. Vitamin K2 meets all these criteria and should be considered for a specific dietary recommendation intake.
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Affiliation(s)
- Asim Cengiz Akbulut
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, 6200MD Maastricht, The Netherlands; (A.C.A.); (A.P.); (P.P.)
| | - Angelina Pavlic
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, 6200MD Maastricht, The Netherlands; (A.C.A.); (A.P.); (P.P.)
| | - Ploingarm Petsophonsakul
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, 6200MD Maastricht, The Netherlands; (A.C.A.); (A.P.); (P.P.)
| | - Maurice Halder
- Division of Nephrology, RWTH Aachen University, 52074 Aachen, Germany; (M.H.); (R.K.)
| | - Katarzyna Maresz
- International Science & Health Foundation, 30-134 Krakow, Poland;
| | - Rafael Kramann
- Division of Nephrology, RWTH Aachen University, 52074 Aachen, Germany; (M.H.); (R.K.)
| | - Leon Schurgers
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, 6200MD Maastricht, The Netherlands; (A.C.A.); (A.P.); (P.P.)
- Division of Nephrology, RWTH Aachen University, 52074 Aachen, Germany; (M.H.); (R.K.)
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79
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Haugsgjerd TR, Egeland GM, Nygård OK, Vinknes KJ, Sulo G, Lysne V, Igland J, Tell GS. Association of dietary vitamin K and risk of coronary heart disease in middle-age adults: the Hordaland Health Study Cohort. BMJ Open 2020; 10:e035953. [PMID: 32444431 PMCID: PMC7247390 DOI: 10.1136/bmjopen-2019-035953] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 02/21/2020] [Accepted: 04/17/2020] [Indexed: 01/07/2023] Open
Abstract
OBJECTIVE The role of vitamin K in the regulation of vascular calcification is established. However, the association of dietary vitamins K1 and K2 with risk of coronary heart disease (CHD) is inconclusive. DESIGN Prospective cohort study. SETTING We followed participants in the community-based Hordaland Health Study from 1997 - 1999 through 2009 to evaluate associations between intake of vitamin K and incident (new onset) CHD. Baseline diet was assessed by a past-year food frequency questionnaire. Energy-adjusted residuals of vitamin K1 and vitamin K2 intakes were categorised into quartiles. PARTICIPANTS 2987 Norwegian men and women, age 46-49 years. METHODS Information on incident CHD events was obtained from the nationwide Cardiovascular Disease in Norway (CVDNOR) Project. Multivariable Cox regression estimated HRs and 95% CIs with test for linear trends across quartiles. Analyses were adjusted for age, sex, total energy intake, physical activity, smoking and education. A third model further adjusted K1 intake for energy-adjusted fibre and folate, while K2 intake was adjusted for energy-adjusted saturated fatty acids and calcium. RESULTS During a median follow-up time of 11 years, we documented 112 incident CHD cases. In the adjusted analyses, there was no association between intake of vitamin K1 and CHD (HRQ4vsQ1 = 0.92 (95% CI 0.54 to 1.57), p for trend 0.64), while there was a lower risk of CHD associated with higher intake of energy-adjusted vitamin K2 (HRQ4vsQ1 = 0.52 (0.29 to 0.94), p for trend 0.03). Further adjustment for potential dietary confounders did not materially change the association for K1, while the association for K2 was slightly attenuated (HRQ4vsQ1 = 0.58 (0.28 to 1.19)). CONCLUSIONS A higher intake of vitamin K2 was associated with lower risk of CHD, while there was no association between intake of vitamin K1 and CHD. TRIAL REGISTRATION NUMBER NCT03013725.
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Affiliation(s)
- Teresa R Haugsgjerd
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - Grace M Egeland
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
- Health Registries, Research and Development, Norwegian Institute of Public Health, Bergen, Norway
| | - Ottar K Nygård
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
- Centre for nutrition, Department of Clinical Science, University of Bergen, Bergen, Norway
| | | | - Gerhard Sulo
- Oral Health Centre of Expertise in Western Norway, Bergen, Norway
- Centre for Disease Burden, Norwegian Institute of Public Health, Bergen, Norway
| | - Vegard Lysne
- Centre for nutrition, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Jannicke Igland
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - Grethe S Tell
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
- Division of Mental and Physical Health, Norwegian Institute of Public Health, Bergen, Norway
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80
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Cao S, Du X, Li P, Yuan G, Chen S, Chen W, Song X, Kuang B. A chemical screening method for menaquinone-producing strains based on HPLC-UV technology. J Microbiol Methods 2020; 172:105907. [PMID: 32240706 DOI: 10.1016/j.mimet.2020.105907] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 03/02/2020] [Accepted: 03/25/2020] [Indexed: 12/12/2022]
Abstract
Despite menaquinones (MKs)-4 and - 7 being known to have extensive biological activities and applications, less attention has been paid to the other MKs. Thus, to obtain a range of MKs to further explore their pharmacological activities, structure-activity relationships, and applications, a chemical screening method for MK-producing strains was established based on high-performance liquid chromatography-ultraviolet (HPLC-UV) technology. Considering that Bacillus strains have proven to be an important MK-producing bioresource, twenty-nine putative Bacillus isolates previously sought from a fermented soybean sample were used for the validation of the chemical screening method, which ultimately led to the discovery of sixteen MK-producing strains. Among them, Bacillus subtilis DC-1 presented excellent ability to produce MKs. Another, a purchased strain of B. amyloliquefaciens was discovered to be an MK-producing strain. These results indicated this screening method was simple and highly efficient for the discovery of MK-producing strains, especially those producing a range of MK structures.
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Affiliation(s)
- Sheng Cao
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Xia Du
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Pingyi Li
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Ganjun Yuan
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang 330045, China.
| | - Shanjun Chen
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang 330045, China.
| | - Weiping Chen
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Xiaoyuan Song
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Bingdi Kuang
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang 330045, China
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81
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Boegh Andersen I, Brasen CL, Schmedes A, Brandslund I, Madsen JS. In Search of Normality for Vitamin K1: Establishing Age-Dependent Reference Intervals in the Danish Population. J Appl Lab Med 2020; 5:531-543. [PMID: 32445363 DOI: 10.1093/jalm/jfaa017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 10/21/2019] [Indexed: 11/14/2022]
Abstract
BACKGROUND A growing body of evidence suggests that vitamin K has beneficial effects on human health, especially cardiovascular and bone health. Vitamin K1 (phylloquinone), the predominant form of vitamin K in blood, is regarded as an indicator of vitamin K status, but to our knowledge no reference intervals (RIs) have been established for vitamin K1. METHODS In this population-based study, vitamin K1 was measured in serum from 3808 Caucasian individuals without diabetes from 26 to 78 years of age. The need for gender- and age-partitioned vitamin K1 reference intervals was evaluated using Lahti's method, and exclusion criteria were defined to obtain as healthy a study group as possible. The excluded subgroups were tested for differences in mean serum vitamin K1 levels. Serum vitamin K1 levels were quantified using an in-house newly developed, validated, and highly sensitive online SPE-LC-MS/MS method with a limit of quantitation of (LOQ) 0.05 nmol/L. RESULTS The reference interval for serum vitamin K1 was 0.22 to 3.95 nmol/L for individuals aged 26 to 44 years and 0.35 to 3.70 nmol/L for individuals aged 45 to 78. Similar age-specific reference intervals were established for vitamin K1-triglyceride ratio being 0.20 to 3.16 and 0.31 to 3.44, respectively. No significant difference was found between genders. Serum vitamin K1 was detectable in all serum samples. Individuals with known comorbidity were found to have significantly lower serum vitamin K1 compared to those without comorbidity. Current smokers had lower serum vitamin K1 compared to nonsmokers. CONCLUSION Age-dependent reference intervals were established for serum vitamin K1 and vitamin K1-triglyceride ratio in a well-defined, healthy Caucasian population. Lower serum vitamin K1 levels were found in individuals with known comorbidity, suggesting an association between serum vitamin K1 and disease status. Further studies are needed to determine an optimal serum vitamin K1 level.
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Affiliation(s)
- Ida Boegh Andersen
- Biochemistry and Immunology, Lillebaelt Hospital, University Hospital of Southern Denmark, Vejle, Denmark.,Department of Regional Health Research, University of Southern Denmark, Odense, Denmark.,OPEN - Open Patient data Explorative Network, Department of Clinical Research, University of Southern Denmark and Odense University Hospital, Odense, Denmark
| | - Claus Lohman Brasen
- Biochemistry and Immunology, Lillebaelt Hospital, University Hospital of Southern Denmark, Vejle, Denmark.,Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Anne Schmedes
- Biochemistry and Immunology, Lillebaelt Hospital, University Hospital of Southern Denmark, Vejle, Denmark
| | - Ivan Brandslund
- Biochemistry and Immunology, Lillebaelt Hospital, University Hospital of Southern Denmark, Vejle, Denmark.,Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Jonna Skov Madsen
- Biochemistry and Immunology, Lillebaelt Hospital, University Hospital of Southern Denmark, Vejle, Denmark.,Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
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82
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Zhang Y, Liu Z, Duan L, Ji Y, Yang S, Zhang Y, Li H, Wang Y, Wang P, Chen J, Li Y. Effect of Low-Dose Vitamin K2 Supplementation on Bone Mineral Density in Middle-Aged and Elderly Chinese: A Randomized Controlled Study. Calcif Tissue Int 2020; 106:476-485. [PMID: 32060566 DOI: 10.1007/s00223-020-00669-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 02/03/2020] [Indexed: 10/25/2022]
Abstract
Previous studies indicated a positive effect of vitamin K2 (VK2) supplementation on bone turnover biomarkers and bone mineral density (BMD), but the doses varied, and few studies have focused on the difference between VK2 supplementation alone and in combination with calcium and vitamin D3. The aim of this study was to explore a low and effective dose of VK2 for improving BMD, and to examine whether the co-supplementation of VK2, calcium and vitamin D3 would bring greater effects. In this trial, a total of 311 community-dwelling men and postmenopausal women aged 50 and 75 years were randomly assigned to four groups, receiving placebo, 50 µg/day, 90 µg/day or co-supplementation with calcium (500 mg/day) and vitamin D3 (10 µg/day) for 1 year. At the endpoint, the bone loss of femoral neck was significantly lower in postmenopausal women in the two 90 µg groups (treatment × time, p = 0.006) compared with placebo, but no effects in men. Serum biomarkers cOC/ucOC ratio increased in the intervention groups (treatment × time, p < 0.001). VK2 supplementation in dose of 90 µg/day performed a significant effect on reducing bone loss in postmenopausal women, but in combination with calcium and vitamin D3 brought no additional effects.Trial registration This trial was registered at http://www.chictr.org.cn as chiCTR1800019240.
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Affiliation(s)
- Yingfeng Zhang
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, 157 Baojian Road, Nangang District, Harbin, 150086, People's Republic of China
| | - Zhipeng Liu
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, 157 Baojian Road, Nangang District, Harbin, 150086, People's Republic of China
| | - Lili Duan
- Vitamin K2 Research Center, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang, 110015, People's Republic of China
| | - Yeyu Ji
- Vitamin K2 Research Center, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang, 110015, People's Republic of China
| | - Sen Yang
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, 157 Baojian Road, Nangang District, Harbin, 150086, People's Republic of China
| | - Yuan Zhang
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, 157 Baojian Road, Nangang District, Harbin, 150086, People's Republic of China
| | - Hongyin Li
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, 157 Baojian Road, Nangang District, Harbin, 150086, People's Republic of China
| | - Yu Wang
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, 157 Baojian Road, Nangang District, Harbin, 150086, People's Republic of China
| | - Peng Wang
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, 157 Baojian Road, Nangang District, Harbin, 150086, People's Republic of China
| | - Jiepeng Chen
- Vitamin K2 Research Center, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang, 110015, People's Republic of China.
| | - Ying Li
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, 157 Baojian Road, Nangang District, Harbin, 150086, People's Republic of China.
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83
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Zhang C, Wu D, Ren H. Economical production of vitamin K 2 using crude glycerol from the by-product of biodiesel. Sci Rep 2020; 10:5959. [PMID: 32249809 PMCID: PMC7136243 DOI: 10.1038/s41598-020-62737-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 03/16/2020] [Indexed: 11/11/2022] Open
Abstract
Industrial waste, such as crude glycerol, was used for vitamin K2 by B. subtilis Z-15. Crude glycerol could be used instead of pure glycerin for vitamin K2 production. The combination of soybean peptone and yeast extract was more conducive to the synthesis of vitamin K2. The optimal composition of medium was obtained by response surface methodology. The results indicated that the optimal medium was as follows: 6.3% crude glycerol, 3.0% soybean peptone concentration and 5.1 g/L yeast extract. Under the optimal culture medium, vitamin K2 production was increased to 45.11 ± 0.62 mg/L. The fermentor test further proved that the use of crude glycerol affected neither the synthesis of vitamin K2 nor the growth of B. subtilis. These investigations could lay a foundation for reducing the pollution of crude glycerol, exploring a late model for vitamin K2 cleaner production.
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Affiliation(s)
- Chao Zhang
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, JiNan, 250101, China.,Co-Innovation Center of Green Building, JiNan, 250101, China
| | - Daoji Wu
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, JiNan, 250101, China. .,Co-Innovation Center of Green Building, JiNan, 250101, China.
| | - Huixue Ren
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, JiNan, 250101, China.,Co-Innovation Center of Green Building, JiNan, 250101, China
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84
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Sato T, Inaba N, Yamashita T. MK-7 and Its Effects on Bone Quality and Strength. Nutrients 2020; 12:E965. [PMID: 32244313 PMCID: PMC7230802 DOI: 10.3390/nu12040965] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 03/24/2020] [Accepted: 03/28/2020] [Indexed: 12/20/2022] Open
Abstract
Vitamin K acts as a cofactor and is required for post-translational γ-carboxylation of vitamin K-dependent proteins (VKDP). The current recommended daily intake (RDI) of vitamin K in most countries has been established based on normal coagulation requirements. Vitamin K1 and menaquinone (MK)-4 has been shown to decrease osteocalcin (OC) γ-carboxylation at RDI levels. Among the several vitamin K homologs, only MK-7 (vitamin K2) can promote γ-carboxylation of extrahepatic VKDPs, OC, and the matrix Gla protein at a nutritional dose around RDI. MK-7 has higher efficacy due to its higher bioavailability and longer half-life than other vitamin K homologs. As vitamin K1, MK-4, and MK-7 have distinct bioactivities, their RDIs should be established based on their relative activities. MK-7 increases bone mineral density and promotes bone quality and strength. Collagen production, and thus, bone quality may be affected by MK-7 or MK-4 converted from MK-7. In this review, we comprehensively discuss the various properties of MK-7.
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Affiliation(s)
- Toshiro Sato
- R&D division, J-OILMILLS, Inc., Yokohama 230-0053, Japan;
| | - Naoko Inaba
- R&D division, J-OILMILLS, Inc., Yokohama 230-0053, Japan;
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85
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Bøgh Andersen I, Brasen CL, Nasimi H, Stougård M, Bliddal M, Green A, Schmedes A, Brandslund I, Madsen JS. Serum vitamin K 1 associated to microangiopathy and/or macroangiopathy in individuals with and without diabetes. BMJ Open Diabetes Res Care 2020; 8:8/1/e000961. [PMID: 32213490 PMCID: PMC7170411 DOI: 10.1136/bmjdrc-2019-000961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 02/02/2020] [Accepted: 02/09/2020] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE Vitamin K has proposed beneficial effects on cardiovascular health. We investigated whether serum vitamin K1 was associated with prevalence of microangiopathy and/or macroangiopathy. RESEARCH DESIGN AND METHODS Serum vitamin K was quantified in 3239 individuals with and 3808 without diabetes enrolled in Vejle Diabetes Biobank (2007-2010). Each individual was assessed for microangiography and macroangiopathy at enrollment based on registered diagnoses in the Danish National Patient Registry according to the International Classification of Disease 8 (1977-1993) and 10 (since 1994). Using multinomial logistic regression, relative risk ratios (RRRs) were calculated within each group of individuals with and without diabetes. RRRs were estimated for microangiopathic/macroangiopathic status compared with individuals without complications as a function of 1 nmol/L increments in K1. Adjustment for potential confounders was also performed. RESULTS Vitamin K1 (median) varied 0.86-0.95 nmol/L depending on diabetes, microangiopathic and macroangiopathic status. In individuals with diabetes, the crude RRR for only having microangiopathy was 1.05 (95% CI 0.98 to 1.12) and was found significant when adjusting 1.10 (95% CI 1.01 to 1.19). RRR for having only macroangiopathy was 0.89 (95% CI 0.77 to 1.03) and was again significant when adjusting 0.79 (95% CI 0.66 to 0.96). In individuals without diabetes, adjustments again led to similar estimates that was not significant. The adjusted RRR for having only macroangiopathy was 1.08 (95% CI 0.98 to 1.19). CONCLUSIONS Serum vitamin K1 levels were associated with microangiopathic and macroangiopathic status in individuals with diabetes, but considered of no clinical relevance. The clinical value of other candidate markers for vitamin K status needs to be evaluated in future studies.
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Affiliation(s)
- Ida Bøgh Andersen
- Department of Clinical Biochemistry and Immunology, Lillebælt Hospital, Vejle, Denmark
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Claus Lohman Brasen
- Department of Clinical Biochemistry and Immunology, Lillebælt Hospital, Vejle, Denmark
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Hashmatullah Nasimi
- Department of Clinical Biochemistry and Immunology, Lillebælt Hospital, Vejle, Denmark
- Institute for Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark
| | - Maria Stougård
- OPEN-Open Patient data Explorative Network, Department of Clinical Research, University of Southern Denmark and Odense University Hospital, Odense, Denmark
| | - Mette Bliddal
- OPEN-Open Patient data Explorative Network, Department of Clinical Research, University of Southern Denmark and Odense University Hospital, Odense, Denmark
| | - Anders Green
- OPEN-Open Patient data Explorative Network, Department of Clinical Research, University of Southern Denmark and Odense University Hospital, Odense, Denmark
| | - Anne Schmedes
- Department of Clinical Biochemistry and Immunology, Lillebælt Hospital, Vejle, Denmark
| | - Ivan Brandslund
- Department of Clinical Biochemistry and Immunology, Lillebælt Hospital, Vejle, Denmark
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Jonna Skov Madsen
- Department of Clinical Biochemistry and Immunology, Lillebælt Hospital, Vejle, Denmark
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
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86
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Dekker LH, Vinke PC, Riphagen IJ, Minović I, Eggersdorfer ML, van den Heuvel EGHM, Schurgers LJ, Kema IP, Bakker SJL, Navis G. Cheese and Healthy Diet: Associations With Incident Cardio-Metabolic Diseases and All-Cause Mortality in the General Population. Front Nutr 2020; 6:185. [PMID: 31921878 PMCID: PMC6927928 DOI: 10.3389/fnut.2019.00185] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 11/22/2019] [Indexed: 01/07/2023] Open
Abstract
Background: Many countries have established Food-Based Dietary Guidelines (FBDG). For some foods, such as cheese, there is no consensus on whether or not to include them in these guidelines. Cheese may, however, be an excellent source of vitamin K2, which is a macronutrient with demonstrated positive results on cardiovascular-related outcomes. Aim: First, we assessed the role of cheese within the recently developed Lifelines Diet Score (LLDS), a score based on the Dutch FBDG 2015 in relation to incident cardio-metabolic diseases and all-cause mortality. Secondly, we assessed the association of cheese intake with desphospho-uncarboxylated matrix Gla protein (dp-ucMGP), a marker for functional vitamin K2 status, in a subset of the population. Methods: From the Lifelines cohort study, 122,653 adult participants were included to test the association between de LLDS and health outcomes. In a subset of 1,059 participants aged 60–75 years, dp-ucMGP levels were measured. Dietary intake was assessed using a 110-item Food Frequency Questionnaire. Logistic regression were applied, adjusted for relevant confounders. Results: Median cheese intake was 23.5 [12.6–40.6] g/day. We found a positive correlation between cheese intake and the LLDS (Spearman's rho = 0.024, p < 0.001). The LLDS in quintiles was associated with T2DM [OR (95% CI) Q5 (healthy diet) vs. Q1 (poor diet) = 0.54 (0.43–0.67)] and all-cause mortality [Q5 vs. Q1 = 0.62 (0.50–0.76)]. Inclusion of cheese did not alter these associations. Additionally, we found no significant association of total cheese intake with plasma dp-ucMGP levels. Conclusion: In this population-based cohort study, the inclusion of cheese in the LLDS did not change the inverse associations with incident cardio-metabolic diseases and all-cause mortality. Furthermore, we found no significant association of total cheese intake with plasma dp-ucMGP. The results suggest that cheese is a neutral food group that fits a healthy diet.
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Affiliation(s)
- Louise H Dekker
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Petra C Vinke
- Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Ineke J Riphagen
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Isidor Minović
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Manfred L Eggersdorfer
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | | | - Leon J Schurgers
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, Netherlands
| | - Ido P Kema
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Stephan J L Bakker
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Gerjan Navis
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
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87
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Vitamin K as a Diet Supplement with Impact in Human Health: Current Evidence in Age-Related Diseases. Nutrients 2020; 12:nu12010138. [PMID: 31947821 PMCID: PMC7019739 DOI: 10.3390/nu12010138] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 12/24/2019] [Accepted: 12/31/2019] [Indexed: 12/12/2022] Open
Abstract
Vitamin K health benefits have been recently widely shown to extend beyond blood homeostasis and implicated in chronic low-grade inflammatory diseases such as cardiovascular disease, osteoarthritis, dementia, cognitive impairment, mobility disability, and frailty. Novel and more efficient nutritional and therapeutic options are urgently needed to lower the burden and the associated health care costs of these age-related diseases. Naturally occurring vitamin K comprise the phylloquinone (vitamin K1), and a series of menaquinones broadly designated as vitamin K2 that differ in source, absorption rates, tissue distribution, bioavailability, and target activity. Although vitamin K1 and K2 sources are mainly dietary, consumer preference for diet supplements is growing, especially when derived from marine resources. The aim of this review is to update the reader regarding the specific contribution and effect of each K1 and K2 vitamers in human health, identify potential methods for its sustainable and cost-efficient production, and novel natural sources of vitamin K and formulations to improve absorption and bioavailability. This new information will contribute to foster the use of vitamin K as a health-promoting supplement, which meets the increasing consumer demand. Simultaneously, relevant information on the clinical context and direct health consequences of vitamin K deficiency focusing in aging and age-related diseases will be discussed.
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88
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Rodríguez-Olleros Rodríguez C, Díaz Curiel M. 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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Affiliation(s)
- Celia Rodríguez-Olleros Rodríguez
- Internal Medicine, Bone Disease Department, Hospital Universitario Fundación Jiménez Díaz, Av. de los Reyes Católicos, 2, 28040 Madrid, Spain
| | - Manuel Díaz Curiel
- Internal Medicine, Bone Disease Department, Hospital Universitario Fundación Jiménez Díaz, Av. de los Reyes Católicos, 2, 28040 Madrid, Spain
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89
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Pharmacological and Nutritional Modulation of Vascular Calcification. Nutrients 2019; 12:nu12010100. [PMID: 31905884 PMCID: PMC7019601 DOI: 10.3390/nu12010100] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 12/26/2019] [Accepted: 12/27/2019] [Indexed: 12/15/2022] Open
Abstract
Vascular calcification is an independent predictor of cardiovascular disease, and therefore, inhibition or regression of this processes is of clinical importance. The standard care regarding prevention and treatment of cardiovascular disease at this moment mainly depends on drug therapy. In animal and preclinical studies, various forms of cardiovascular drug therapy seem to have a positive effect on vascular calcification. In particular, calcium channel blockers and inhibitors of the renin-angiotensin-aldosteron system slowed down arterial calcification in experimental animals. In humans, the results of trials with these drugs are far less pronounced and often contradictory. There is limited evidence that the development of new atherosclerotic lesions may be retarded in patients with coronary artery disease, but existing lesions can hardly be influenced. Although statin therapy has a proven role in the prevention and treatment of cardiovascular morbidity and mortality, it is associated with both regression and acceleration of the vascular calcification process. Recently, nutritional supplements have been recognized as a potential tool to reduce calcification. This is particularly true for vitamin K, which acts as an inhibitor of vascular calcification. In addition to vitamin K, other dietary supplements may also modulate vascular function. In this narrative review, we discuss the current state of knowledge regarding the pharmacological and nutritional possibilities to prevent the development and progression of vascular calcification.
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90
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Mahdinia E, Demirci A, Berenjian A. Evaluation of vitamin K (menaquinone-7) stability and secretion in glucose and glycerol-based media by Bacillus subtilis natto. ACTA ALIMENTARIA 2019. [DOI: 10.1556/066.2019.48.4.1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- E. Mahdinia
- Department of Agricultural and Biological Engineering, The Pennsylvania State University, University Park, PA, 16802. USA
| | - A. Demirci
- Department of Agricultural and Biological Engineering, The Pennsylvania State University, University Park, PA, 16802. USA
| | - A. Berenjian
- Faculty of Science and Engineering, The University of Waikato, Hamilton, 3240. New Zealand
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91
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De Vriese AS, Caluwé R, Pyfferoen L, De Bacquer D, De Boeck K, Delanote J, De Surgeloose D, Van Hoenacker P, Van Vlem B, Verbeke F. Multicenter Randomized Controlled Trial of Vitamin K Antagonist Replacement by Rivaroxaban with or without Vitamin K2 in Hemodialysis Patients with Atrial Fibrillation: the Valkyrie Study. J Am Soc Nephrol 2019; 31:186-196. [PMID: 31704740 DOI: 10.1681/asn.2019060579] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Accepted: 09/11/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Vitamin K antagonists (VKAs), although commonly used to reduce thromboembolic risk in atrial fibrillation, have been incriminated as probable cause of accelerated vascular calcification (VC) in patients on hemodialysis. Functional vitamin K deficiency may further contribute to their susceptibility for VC. We investigated the effect of vitamin K status on VC progression in 132 patients on hemodialysis with atrial fibrillation treated with VKAs or qualifying for anticoagulation. METHODS Patients were randomized to VKAs with target INR 2-3, rivaroxaban 10 mg daily, or rivaroxaban 10 mg daily plus vitamin K2 2000 µg thrice weekly during 18 months. Systemic dp-ucMGP levels were quantified to assess vascular vitamin K status. Cardiac and thoracic aorta calcium scores and pulse wave velocity were measured to evaluate VC progression. RESULTS Baseline dp-ucMGP was severely elevated in all groups. Initiation or continuation of VKAs further increased dp-ucMGP, whereas levels decreased in the rivaroxaban group and to a larger extent in the rivaroxaban+vitamin K2 group, but remained nevertheless elevated. Changes in coronary artery, thoracic aorta, and cardiac valve calcium scores and pulse wave velocity were not significantly different among the treatment arms. All cause death, stroke, and cardiovascular event rates were similar between the groups. Bleeding outcomes were not significantly different, except for a lower number of life-threatening and major bleeding episodes in the rivaroxaban arms versus the VKA arm. CONCLUSIONS Withdrawal of VKAs and high-dose vitamin K2 improve vitamin K status in patients on hemodialysis, but have no significant favorable effect on VC progression. Severe bleeding complications may be lower with rivaroxaban than with VKAs.
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Affiliation(s)
- An S De Vriese
- Division of Nephrology and Infectious Diseases and .,Departments of Internal Medicine and
| | | | - Lotte Pyfferoen
- Department of Medical Imaging, AZ Sint-Jan Brugge, Brugge, Belgium
| | | | | | - Joost Delanote
- Department of Medical Imaging, AZ Sint-Jan Brugge, Brugge, Belgium
| | | | - Piet Van Hoenacker
- Department of Medical Imaging, Onze Lieve Vrouw Hospital, Aalst, Belgium
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92
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Oikonomaki T, Papasotiriou M, Ntrinias T, Kalogeropoulou C, Zabakis P, Kalavrizioti D, Papadakis I, Goumenos DS, Papachristou E. The effect of vitamin K2 supplementation on vascular calcification in haemodialysis patients: a 1-year follow-up randomized trial. Int Urol Nephrol 2019; 51:2037-2044. [PMID: 31529295 DOI: 10.1007/s11255-019-02275-2] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Accepted: 08/30/2019] [Indexed: 12/31/2022]
Abstract
PURPOSE Vascular calcification (VC) is an independent risk factor for cardiovascular disease in hemodialysis patients while Matrix GLA protein (MGP) is one of the most potent inhibitors of VC and its activation is vitamin K dependent. The aim of this study is to investigate the role of oral vitamin K2 supplementation in the prevention of VC progression in haemodialysis patients. METHODS We conducted a prospective randomized interventional study in patients on hemodialysis. Patients were randomly assigned to either receiving orally 200 μgr of vitamin K2 (vitamin K2/MK-7, Solgar) every day for 1 year or no treatment. Uncarboxylated MGP (uc-MGP) concentrations were quantified using ELISA at randomization, at 3 and at 12 months. Aortic calcification was evaluated using Agatston score after an abdominal computed tomography scan that was performed at the beginning and at 12 months of follow-up. RESULTS There were 102 patients that were randomized. After 1 year of follow-up, 22 patients from the vitamin K2 group and 30 patients from the control group were included in the analysis. After 3 months of treatment, uc-MGP values remained unchanged in the vitK2 group but after 1 year were reduced by 47% (p = 0.005). Furthermore, uc-MGP at 1 year was increased by 12% in the control group. At 1 year, vitK2 group had significantly lower values of uc-MGP in comparison to controls (p = 0.03). Agatston score was increased significantly both in vitamin K2 and control group at 1 year with no difference between groups. CONCLUSIONS Oral administration of vitamin K2 in patients on haemodialysis reduced serum uc-MGP levels but did not have an effect in the progression of aortic calcification.
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Affiliation(s)
| | - Marios Papasotiriou
- Department of Nephrology and Renal Transplantation, University Hospital of Patras, Patras, Greece
| | - Theodoros Ntrinias
- Department of Nephrology and Renal Transplantation, University Hospital of Patras, Patras, Greece
| | | | - Petros Zabakis
- Department of Radiology, University Hospital of Patras, Patras, Greece
| | - Dimitra Kalavrizioti
- Department of Nephrology and Renal Transplantation, University Hospital of Patras, Patras, Greece
| | | | - Dimitrios S Goumenos
- Department of Nephrology and Renal Transplantation, University Hospital of Patras, Patras, Greece
| | - Evangelos Papachristou
- Department of Nephrology and Renal Transplantation, University Hospital of Patras, Patras, Greece.
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93
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Salminen W, Agbaje-Williams M, Ajayi FO. A Unique Formulation of Cardioprotective Bio-Actives: An Overview of Their Safety Profile. MEDICINES (BASEL, SWITZERLAND) 2019; 6:E107. [PMID: 31652632 PMCID: PMC6963456 DOI: 10.3390/medicines6040107] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 10/16/2019] [Accepted: 10/17/2019] [Indexed: 12/19/2022]
Abstract
The burden of cardiovascular disease (CVD) remains high globally and in the United States despite the availability of pharmaceuticals aimed at its prevention and treatment. An invention by Summit Innovation Labs, which is a formula consisting of a unique blend of select polyphenols (i.e., curcumin, quercetin, resveratrol), vitamin K2 as menaquinone-7, and magnesium, was recently developed to modulate the impact of the specific drivers of CVD, namely, vascular calcification, oxidative stress, and chronic inflammation. The SIL formulation is a dietary supplement that was designed leveraging the more bioavailable forms of ingredients with poor absorption, such as curcumin and quercetin. Each ingredient within the SIL formulation has been shown to contribute to CVD risk reduction by moderating the effect of CVD triggers, thereby providing a holistic prevention strategy for CVD in the healthy population. This review focuses on recently published clinical data to support the safety profile of these ingredients following oral administration. The preponderance of clinical trial data reviewed support the overall safety of the bioactives when used singly or in combination. The most commonly reported adverse effects were generally mild dose-related gastrointestinal disturbances, which may be alleviated with diet in some cases. In light of these, we conclude that the combination of the ingredients in the SIL formulation is reasonably expected to be safe.
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94
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Sanyaolu AO, Oremosu AA, Osinubi AA, Vermeer C, Daramola AO. Warfarin-induced vitamin K deficiency affects spermatogenesis in Sprague-Dawley rats. Andrologia 2019; 51:e13416. [PMID: 31576592 DOI: 10.1111/and.13416] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 07/14/2019] [Accepted: 08/01/2019] [Indexed: 12/12/2022] Open
Abstract
Vitamin K is present in the testes though its actual function in male reproduction is poorly understood. This study investigated the harmful effect of extrahepatic vitamin K insufficiency on the testicular structure. Sprague-Dawley rats were fed with a diet containing warfarin for 2, 4 and 8 weeks; control animals received a standard diet without warfarin. It was found that extrahepatic vitamin K deficiency that is induced by warfarin results in histopathological features that range from delayed spermiation, presence of multinucleated giant cells in the seminiferous tubules, germ cells degeneration, asthenozoospermia, oligozoospermia and increase in the percentage of abnormal sperm morphology when compared to the controls. Data obtained from the two groups were analysed using the Student t test. It is concluded that warfarin-induced vitamin K deficiency has a negative impact on spermatogenesis.
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Affiliation(s)
- Arinola O Sanyaolu
- Department of Anatomy, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Ademola A Oremosu
- Department of Anatomy, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Abraham A Osinubi
- Department of Anatomy, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Cees Vermeer
- R&D Group VitaK, Maastricht University, Maastricht, The Netherlands
| | - Adetola O Daramola
- Department of Anatomic & Molecular Pathology, College of Medicine, University of Lagos, Lagos, Nigeria
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95
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Xiang H, Sun-Waterhouse D, Waterhouse GI, Cui C, Ruan Z. Fermentation-enabled wellness foods: A fresh perspective. FOOD SCIENCE AND HUMAN WELLNESS 2019. [DOI: 10.1016/j.fshw.2019.08.003] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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96
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Vitamin K as a Powerful Micronutrient in Aging and Age-Related Diseases: Pros and Cons from Clinical Studies. Int J Mol Sci 2019; 20:ijms20174150. [PMID: 31450694 PMCID: PMC6747195 DOI: 10.3390/ijms20174150] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 08/19/2019] [Accepted: 08/22/2019] [Indexed: 02/07/2023] Open
Abstract
Vitamin K is a multifunctional micronutrient implicated in age-related diseases such as cardiovascular diseases, osteoarthritis and osteoporosis. Although vitamin K-dependent proteins (VKDPs) are described to have a crucial role in the pathogenesis of these diseases, novel roles have emerged for vitamin K, independently of its role in VKDPs carboxylation. Vitamin K has been shown to act as an anti-inflammatory by suppressing nuclear factor κB (NF-κB) signal transduction and to exert a protective effect against oxidative stress by blocking the generation of reactive oxygen species. Available clinical evidences indicate that a high vitamin K status can exert a protective role in the inflammatory and mineralization processes associated with the onset and progression of age-related diseases. Also, vitamin K involvement as a protective super-micronutrient in aging and ‘inflammaging’ is arising, highlighting its future use in clinical practice. In this review we summarize current knowledge regarding clinical data on vitamin K in skeletal and cardiovascular health, and discuss the potential of vitamin K supplementation as a health benefit. We describe the clinical evidence and explore molecular aspects of vitamin K protective role in aging and age-related diseases, and its involvement as a modulator in the interplay between pathological calcification and inflammation processes.
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97
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Liu Y, van Bennekom EO, Zhang Y, Abee T, Smid EJ. Long-chain vitamin K2 production in Lactococcus lactis is influenced by temperature, carbon source, aeration and mode of energy metabolism. Microb Cell Fact 2019; 18:129. [PMID: 31387603 PMCID: PMC6683496 DOI: 10.1186/s12934-019-1179-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 07/30/2019] [Indexed: 12/13/2022] Open
Abstract
Background Vitamin K2 (menaquinone, MK-n) is a lipid-soluble vitamin that functions as a carboxylase co-factor for maturation of proteins involved in many vital physiological processes in humans. Notably, long-chain vitamin K2 is produced by bacteria, including some species and strains belonging to the group of lactic acid bacteria (LAB) that play important roles in food fermentation processes. This study was performed to gain insights into the natural long-chain vitamin K2 production capacity of LAB and the factors influencing vitamin K2 production during cultivation, providing a basis for biotechnological production of vitamin K2 and in situ fortification of this vitamin in food products. Results We observed that six selected Lactococcus lactis strains produced MK-5 to MK-10, with MK-8 and MK-9 as the major MK variant. Significant diversities between strains were observed in terms of specific concentrations and titres of vitamin K2. L. lactis ssp. cremoris MG1363 was selected for more detailed studies of the impact of selected carbon sources tested under different growth conditions [i.e. static fermentation (oxygen absent, heme absent); aerobic fermentation (oxygen present, heme absent) and aerobic respiration (oxygen present, heme present)] on vitamin K2 production in M17 media. Aerobic fermentation with fructose as a carbon source resulted in the highest specific concentration of vitamin K2: 3.7-fold increase compared to static fermentation with glucose, whereas aerobic respiration with trehalose resulted in the highest titre: 5.2-fold increase compared to static fermentation with glucose. When the same strain was applied to quark fermentation, we consistently observed that altered carbon source (fructose) and aerobic cultivation of the pre-culture resulted in efficient vitamin K2 fortification in the quark product. Conclusions With this study we demonstrate that certain LAB strains can be employed for efficient production of long-chain vitamin K2. Strain selection and optimisation of growth conditions offer a viable strategy towards natural vitamin K2 enrichment of fermented foods, and to improved biotechnological vitamin K2 production processes. Electronic supplementary material The online version of this article (10.1186/s12934-019-1179-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yue Liu
- Food Microbiology, Wageningen University and Research, PO Box 17, 6700 AA, Wageningen, The Netherlands
| | - Eric O van Bennekom
- BU Veterinary Drugs, RIKILT, Wageningen University and Research, Akkermaalsbos 2, 6708 WB, Wageningen, The Netherlands
| | - Yu Zhang
- Food Microbiology, Wageningen University and Research, PO Box 17, 6700 AA, Wageningen, The Netherlands.,, Shanghai, People's Republic of China
| | - Tjakko Abee
- Food Microbiology, Wageningen University and Research, PO Box 17, 6700 AA, Wageningen, The Netherlands
| | - Eddy J Smid
- Food Microbiology, Wageningen University and Research, PO Box 17, 6700 AA, Wageningen, The Netherlands.
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98
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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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99
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Ma Y, McClure DD, Somerville MV, Proschogo NW, Dehghani F, Kavanagh JM, Coleman NV. Metabolic Engineering of the MEP Pathway in Bacillus subtilis for Increased Biosynthesis of Menaquinone-7. ACS Synth Biol 2019; 8:1620-1630. [PMID: 31250633 DOI: 10.1021/acssynbio.9b00077] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Vitamin K is essential for blood coagulation and plays important roles in bone and cardiovascular health. Menaquinone-7 (MK-7) is one form of vitamin K that is especially useful due to its long half-life in the circulation. MK-7 is difficult to make via organic synthesis, and is thus commonly produced by fermentation. This study aimed to genetically modify Bacillus subtilis cultures to increase their MK-7 yield and reduce production costs. We constructed 12 different strains of B. subtilis 168 by overexpressing different combinations of the rate-limiting enzymes Dxs, Dxr, Idi, and MenA. We observed an 11-fold enhancement of production in the best-performing strain, resulting in 50 mg/L MK-7. Metabolite analysis revealed new bottlenecks in the pathway at IspG and IspH, which suggest avenues for further optimization. This work highlights the usefulness of Bacillus subtilis for industrial production of high value compounds.
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Affiliation(s)
- Yanwei Ma
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia
| | - Dale D. McClure
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia
| | - Mark V. Somerville
- School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW 2006, Australia
| | | | - Fariba Dehghani
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia
| | - John M. Kavanagh
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia
| | - Nicholas V. Coleman
- School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW 2006, Australia
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100
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Viegas C, Araújo N, Marreiros C, Simes D. The interplay between mineral metabolism, vascular calcification and inflammation in Chronic Kidney Disease (CKD): challenging old concepts with new facts. Aging (Albany NY) 2019; 11:4274-4299. [PMID: 31241466 PMCID: PMC6628989 DOI: 10.18632/aging.102046] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 06/17/2019] [Indexed: 12/11/2022]
Abstract
Chronic kidney disease (CKD) is one of the most powerful predictors of premature cardiovascular disease (CVD), with heightened susceptibility to vascular intimal and medial calcification associated with a high cardiovascular mortality. Abnormal mineral metabolism of calcium (Ca) and phosphate (P) and underlying (dys)regulated hormonal control in CKD-mineral and bone disorder (MBD) is often accompanied by bone loss and increased vascular calcification (VC). While VC is known to be a multifactorial process and a major risk factor for CVD, the view of primary triggers and molecular mechanisms complexity has been shifting with novel scientific knowledge over the last years. In this review we highlight the importance of calcium-phosphate (CaP) mineral crystals in VC with an integrated view over the complexity of CKD, while discuss past and recent literature aiming to highlight novel horizons on this major health burden. Exacerbated VC in CKD patients might result from several interconnected mechanisms involving abnormal mineral metabolism, dysregulation of endogenous calcification inhibitors and inflammatory pathways, which function in a feedback loop driving disease progression and cardiovascular outcomes. We propose that novel approaches targeting simultaneously VC and inflammation might represent valuable new prognostic tools and targets for therapeutics and management of cardiovascular risk in the CKD population.
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Affiliation(s)
- Carla Viegas
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro 8005-139, Portugal
- GenoGla Diagnostics, Centre of Marine Sciences (CCMAR), University of Algarve, Faro 8005-139, Portugal
| | - Nuna Araújo
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro 8005-139, Portugal
| | - Catarina Marreiros
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro 8005-139, Portugal
| | - Dina Simes
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro 8005-139, Portugal
- GenoGla Diagnostics, Centre of Marine Sciences (CCMAR), University of Algarve, Faro 8005-139, Portugal
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