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Qin Y, Pillidge C, Harrison B, Adhikari B. Pathways in formulating foods for the elderly. Food Res Int 2024; 186:114324. [PMID: 38729692 DOI: 10.1016/j.foodres.2024.114324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 04/11/2024] [Accepted: 04/16/2024] [Indexed: 05/12/2024]
Abstract
The growth of the elderly population worldwide is posing significant challenges to human society. The progressive physical and physiological changes occur with aging, including decreased appetite, incomplete digestion, and reduced absorption of nutrients. A common feature of many elderly people's diets is a deficiency in proteins (especially easily digestible ones) and micronutrients (e.g., vitamins, zinc, iron, and calcium). One of the solutions to this problem is the incorporation of these components into suitably texture-modified foods. There is a dearth of products that meet the needs of the elderly with special medical/health conditions such as dysphagia, osteoporosis, diabetes, and cardiovascular disease, as well as those who are in hospital and palliative care. Future research and development of foods for the elderly must address specific dietary needs of different subgroups of elderly people with underlying health conditions. The existence of different physical and physiological stages of the elderly means that their specific dietary requirements must be considered. This review summarizes current knowledge on nutritional requirements including those with underlying health problems and outlines the research and innovation pathways for developing new foods considering nutrition, texture, flavor, and other sensory aspects.
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Affiliation(s)
- Yuxin Qin
- School of Science, RMIT University, Melbourne, VIC 3083, Australia.
| | | | | | - Benu Adhikari
- School of Science, RMIT University, Melbourne, VIC 3083, Australia; The Centre for Advanced Materials and Industrial Chemistry (CAMIC), Melbourne, VIC 3083, Australia.
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2
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Han D, Wang W, Gong J, Ma Y, Li Y. Microbiota metabolites in bone: Shaping health and Confronting disease. Heliyon 2024; 10:e28435. [PMID: 38560225 PMCID: PMC10979239 DOI: 10.1016/j.heliyon.2024.e28435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 02/16/2024] [Accepted: 03/19/2024] [Indexed: 04/04/2024] Open
Abstract
The intricate interplay between the gut microbiota and bone health has become increasingly recognized as a fundamental determinant of skeletal well-being. Microbiota-derived metabolites play a crucial role in dynamic interaction, specifically in bone homeostasis. In this sense, short-chain fatty acids (SCFAs), including acetate, propionate, and butyrate, indirectly promote bone formation by regulating insulin-like growth factor-1 (IGF-1). Trimethylamine N-oxide (TMAO) has been found to increase the expression of osteoblast genes, such as Runt-related transcription factor 2 (RUNX2) and bone morphogenetic protein-2 (BMP2), thus enhancing osteogenic differentiation and bone quality through BMP/SMADs and Wnt signaling pathways. Remarkably, in the context of bone infections, the role of microbiota metabolites in immune modulation and host defense mechanisms potentially affects susceptibility to infections such as osteomyelitis. Furthermore, ongoing research elucidates the precise mechanisms through which microbiota-derived metabolites influence bone cells, such as osteoblasts and osteoclasts. Understanding the multifaceted influence of microbiota metabolites on bone, from regulating homeostasis to modulating susceptibility to infections, has the potential to revolutionize our approach to bone health and disease management. This review offers a comprehensive exploration of this evolving field, providing a holistic perspective on the impact of microbiota metabolites on bone health and diseases.
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Affiliation(s)
- Dong Han
- Department of Trauma Orthopedics, Yantaishan Hospital, Yantai 264000, China
| | - Weijiao Wang
- Department of Otolaryngology, Yantaishan Hospital, Yantai 264000, China
| | - Jinpeng Gong
- Department of Trauma Orthopedics, Yantaishan Hospital, Yantai 264000, China
| | - Yupeng Ma
- Department of Trauma Orthopedics, Yantaishan Hospital, Yantai 264000, China
| | - Yu Li
- Department of Trauma Orthopedics, Yantaishan Hospital, Yantai 264000, China
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3
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Fawzy El-Sayed KM, Cosgarea R, Sculean A, Doerfer C. Can vitamins improve periodontal wound healing/regeneration? Periodontol 2000 2024; 94:539-602. [PMID: 37592831 DOI: 10.1111/prd.12513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/13/2023] [Accepted: 07/19/2023] [Indexed: 08/19/2023]
Abstract
Periodontitis is a complex inflammatory disorder of the tooth supporting structures, associated with microbial dysbiosis, and linked to a number if systemic conditions. Untreated it can result in an irreversible damage to the periodontal structures and eventually teeth loss. Regeneration of the lost periodontium requires an orchestration of a number of biological events on cellular and molecular level. In this context, a set of vitamins have been advocated, relying their beneficial physiological effects, to endorse the biological regenerative events of the periodontium on cellular and molecular levels. The aim of the present article is to elaborate on the question whether or not vitamins improve wound healing/regeneration, summarizing the current evidence from in vitro, animal and clinical studies, thereby shedding light on the knowledge gap in this field and highlighting future research needs. Although the present review demonstrates the current heterogeneity in the available evidence and knowledge gaps, findings suggest that vitamins, especially A, B, E, and CoQ10, as well as vitamin combinations, could exert positive attributes on the periodontal outcomes in adjunct to surgical or nonsurgical periodontal therapy.
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Affiliation(s)
- Karim M Fawzy El-Sayed
- Oral Medicine and Periodontology Department, Faculty of Oral and Dental Medicine, Cairo University, Giza, Egypt
- Clinic for Conservative Dentistry and Periodontology, School of Dental Medicine, Christian Albrechts University, Kiel, Germany
| | - Raluca Cosgarea
- Department of Periodontology, Operative and Preventive Dentistry, University of Bonn, Bonn, Germany
- Department of Periodontology and Peri-implant Diseases, Philips University Marburg, Marburg, Germany
- Clinic for Prosthetic Dentistry, University Iuliu-Hatieganu, Cluj-Napoca, Romania
| | - Anton Sculean
- Department of Periodontology, University of Bern, Bern, Switzerland
| | - Christof Doerfer
- Clinic for Conservative Dentistry and Periodontology, School of Dental Medicine, Christian Albrechts University, Kiel, Germany
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4
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Mangge H, Prueller F, Dawczynski C, Curcic P, Sloup Z, Holter M, Herrmann M, Meinitzer A. Dramatic Decrease of Vitamin K2 Subtype Menaquinone-7 in COVID-19 Patients. Antioxidants (Basel) 2022; 11:antiox11071235. [PMID: 35883726 PMCID: PMC9312339 DOI: 10.3390/antiox11071235] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 06/20/2022] [Accepted: 06/20/2022] [Indexed: 11/30/2022] Open
Abstract
(1) Background: Vitamin K (VK) is a fat-soluble compound with a common chemical structure, a 2-methyl-1,4-naphthoquinone ring, and a variable aliphatic side-chain. VK is involved in the synthesis of blood-clotting proteins, bone stability, anti-oxidative, and immune inflammatory-modulatory functions. Vitamin K also activates protein S, which acts as an antioxidant and anti-inflammatory. The fact that cytokine overproduction, oxidative stress, and disturbed microcirculation by thrombogenicity play a central role in severe COVID-19 prompted us to analyze this vitamin. (2) Methods: We analyzed by a validated liquid-chromatography tandem mass-spectrometry method serum vitamin K1, MK4, MK7, and VK epoxide levels in 104 healthy controls, 77 patients with non-COVID-19 pneumonia, and 135 hospitalized COVID-19 patients with potentially fatal outcomes admitted to our University Hospital between April and November 2020. We included the quotient between VK and triglyceride (TG, nmol/mmol/L) values in the analyses with respect to the TG transporter function for all VK subtypes. Additionally, we assessed anthropometric, routine laboratory, and clinical data from the laboratory and hospital information systems. (3) Results: The COVID-19 patients had significantly lower MK7 levels than non-COVID-19 pneumonia patients and healthy controls. COVID-19 and non-COVID-19 pneumonia patients had significantly lower vitamin K1 and significantly higher MK4 compared to healthy controls, but did not differ significantly from each other. Between COVID-19 non-survivors (n = 30) and survivors (n = 105) no significant differences were seen in all vitamin K subtypes, despite the fact that non-survivors had higher peak concentrations of IL-6, CRP, d-dimer, and higher oxygen needs, respectively. (4) Conclusions: The present data identified significantly decreased vitamin K1, K2 (MK7), and increased MK4 levels in patients with COVID-19 compared to healthy controls. Vitamin K2 (MK7) was lowest in COVID-19 patients irrespective of potentially fatal courses, indicating consumption of this VK subtype by COVID-19 immanent effects, most probably inflammatory and oxidative stress factors.
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Affiliation(s)
- Harald Mangge
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, 8036 Graz, Austria; (F.P.); (P.C.); (Z.S.); (M.H.); (A.M.)
- Correspondence: ; Tel.: +43-316-385-83340
| | - Florian Prueller
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, 8036 Graz, Austria; (F.P.); (P.C.); (Z.S.); (M.H.); (A.M.)
| | - Christine Dawczynski
- Institute of Nutritional Science, Friedrich Schiller University Jena, 07743 Jena, Germany;
| | - Pero Curcic
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, 8036 Graz, Austria; (F.P.); (P.C.); (Z.S.); (M.H.); (A.M.)
| | - Zdenka Sloup
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, 8036 Graz, Austria; (F.P.); (P.C.); (Z.S.); (M.H.); (A.M.)
| | - Magdalena Holter
- Institute of Medical Computer Sciences, Statistics and Documentation, Medical University of Graz, 8036 Graz, Austria;
| | - Markus Herrmann
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, 8036 Graz, Austria; (F.P.); (P.C.); (Z.S.); (M.H.); (A.M.)
| | - Andreas Meinitzer
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, 8036 Graz, Austria; (F.P.); (P.C.); (Z.S.); (M.H.); (A.M.)
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Rondanelli M, Faliva MA, Barrile GC, Cavioni A, Mansueto F, Mazzola G, Oberto L, Patelli Z, Pirola M, Tartara A, Riva A, Petrangolini G, Peroni G. Nutrition, Physical Activity, and Dietary Supplementation to Prevent Bone Mineral Density Loss: A Food Pyramid. Nutrients 2021; 14:74. [PMID: 35010952 PMCID: PMC8746518 DOI: 10.3390/nu14010074] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 12/21/2021] [Accepted: 12/21/2021] [Indexed: 12/15/2022] Open
Abstract
Bone is a nutritionally modulated tissue. Given this background, aim of this review is to evaluate the latest data regarding ideal dietary approach in order to reduce bone mineral density loss and to construct a food pyramid that allows osteopenia/osteoporosis patients to easily figure out what to eat. The pyramid shows that carbohydrates should be consumed every day (3 portions of whole grains), together with fruits and vegetables (5 portions; orange-colored fruits and vegetables and green leafy vegetables are to be preferred), light yogurt (125 mL), skim milk (200 mL,) extra virgin olive oil (almost 20 mg/day), and calcium water (almost 1 l/day); weekly portions should include fish (4 portions), white meat (3 portions), legumes (2 portions), eggs (2 portions), cheeses (2 portions), and red or processed meats (once/week). At the top of the pyramid, there are two pennants: one green means that osteopenia/osteoporosis subjects need some personalized supplementation (if daily requirements cannot be satisfied through diet, calcium, vitamin D, boron, omega 3, and isoflavones supplementation could be an effective strategy with a great benefit/cost ratio), and one red means that there are some foods that are banned (salt, sugar, inorganic phosphate additives). Finally, three to four times per week of 30-40 min of aerobic and resistance exercises must be performed.
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Affiliation(s)
- Mariangela Rondanelli
- IRCCS Mondino Foundation, 27100 Pavia, Italy;
- Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100 Pavia, Italy
| | - Milena Anna Faliva
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona “Istituto Santa Margherita”, University of Pavia, 27100 Pavia, Italy; (M.A.F.); (G.C.B.); (A.C.); (F.M.); (G.M.); (L.O.); (Z.P.); (M.P.); (A.T.)
| | - Gaetan Claude Barrile
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona “Istituto Santa Margherita”, University of Pavia, 27100 Pavia, Italy; (M.A.F.); (G.C.B.); (A.C.); (F.M.); (G.M.); (L.O.); (Z.P.); (M.P.); (A.T.)
| | - Alessandro Cavioni
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona “Istituto Santa Margherita”, University of Pavia, 27100 Pavia, Italy; (M.A.F.); (G.C.B.); (A.C.); (F.M.); (G.M.); (L.O.); (Z.P.); (M.P.); (A.T.)
| | - Francesca Mansueto
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona “Istituto Santa Margherita”, University of Pavia, 27100 Pavia, Italy; (M.A.F.); (G.C.B.); (A.C.); (F.M.); (G.M.); (L.O.); (Z.P.); (M.P.); (A.T.)
| | - Giuseppe Mazzola
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona “Istituto Santa Margherita”, University of Pavia, 27100 Pavia, Italy; (M.A.F.); (G.C.B.); (A.C.); (F.M.); (G.M.); (L.O.); (Z.P.); (M.P.); (A.T.)
| | - Letizia Oberto
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona “Istituto Santa Margherita”, University of Pavia, 27100 Pavia, Italy; (M.A.F.); (G.C.B.); (A.C.); (F.M.); (G.M.); (L.O.); (Z.P.); (M.P.); (A.T.)
| | - Zaira Patelli
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona “Istituto Santa Margherita”, University of Pavia, 27100 Pavia, Italy; (M.A.F.); (G.C.B.); (A.C.); (F.M.); (G.M.); (L.O.); (Z.P.); (M.P.); (A.T.)
| | - Martina Pirola
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona “Istituto Santa Margherita”, University of Pavia, 27100 Pavia, Italy; (M.A.F.); (G.C.B.); (A.C.); (F.M.); (G.M.); (L.O.); (Z.P.); (M.P.); (A.T.)
| | - Alice Tartara
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona “Istituto Santa Margherita”, University of Pavia, 27100 Pavia, Italy; (M.A.F.); (G.C.B.); (A.C.); (F.M.); (G.M.); (L.O.); (Z.P.); (M.P.); (A.T.)
| | - Antonella Riva
- Research and Development Department, Indena SpA, 20139 Milan, Italy; (A.R.); (G.P.)
| | | | - Gabriella Peroni
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona “Istituto Santa Margherita”, University of Pavia, 27100 Pavia, Italy; (M.A.F.); (G.C.B.); (A.C.); (F.M.); (G.M.); (L.O.); (Z.P.); (M.P.); (A.T.)
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6
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Fusaro M, Cianciolo G, Tripepi G, Plebani M, Aghi A, Politi C, Zaninotto M, Nickolas TL, Ferrari S, Ketteler M, La Manna G, Gasperoni L, Messa P, Ravera M, Gallieni M, Cosmai L, Locatelli F, Iervasi G, Vettor R, Mereu MC, Sella S, Arcidiacono G, Giannini S. Oral Calcitriol Use, Vertebral Fractures, and Vitamin K in Hemodialysis Patients: A Cross-Sectional Study. J Bone Miner Res 2021; 36:2361-2370. [PMID: 34622481 DOI: 10.1002/jbmr.4440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 08/26/2021] [Accepted: 08/29/2021] [Indexed: 02/06/2023]
Abstract
Fractures and vascular calcifications (VCs) are common in patients with chronic kidney disease (CKD). They are related to abnormalities in vitamin D metabolism, calcium, phosphorus, parathyroid hormone, and fibroblast growth factor 23 (FGF23)/Klotho that occur with CKD. Impaired vitamin D metabolism and abnormal levels of calcium, phosphate, parathyroid hormone (PTH), and FGF23/Klotho drive bone and vascular changes in CKD. It is unclear if oral calcitriol safely mitigates fracture risk without increasing the burden of calcifications. Therefore, we investigated whether treatment with calcitriol affected the prevalence of fractures and VC progression in hemodialysis (HD) patients. This report is a secondary analysis of the Vitamin K Italian (VIKI) study, a cross-sectional study involving 387 HD patients. We assessed vitamin 25(OH)D, alkaline phosphatase, PTH, calcium, phosphate, osteocalcin or bone Gla protein, matrix Gla protein, and vitamin K levels. Vertebral fractures (VFs) and VCs were determined by spine radiograph. A reduction of >20% of vertebral body height was considered a VF. VCs were quantified by the length of calcific lesions along the arteries. The patients treated with oral calcitriol were 177 of 387 patients (45.7%). The prevalence of VF was lower in patients receiving oral calcitriol than in those untreated (48.6% versus 61.0%, p = 0.015), whereas the presence of aortic and iliac calcifications was similar (aortic: 81.9% versus 79.5%, respectively, p = 0.552; iliac: 52.0% and 59.5%, respectively, p = 0.167). In multivariable logistic regression analysis, oral calcitriol was associated with a 40.2% reduced odds of fracture (OR 0.598; 95% confidence interval [CI], 0.363-0.985; p = 0.043). In conclusion, we found a significant association between oral calcitriol and lower VF in HD patients without an increase in the burden of VC. Further prospective and interventional studies are needed to confirm these findings. © 2021 American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Maria Fusaro
- National Research Council (CNR), Institute of Clinical Physiology (IFC), Pisa, Italy.,Department of Medicine, University of Padova, Padova, Italy
| | - Giuseppe Cianciolo
- Nephrology Dialysis and Kidney Transplantation Unit, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Azienda Ospedaliero-Universitaria di Bologna, S. Orsola Malpighi Hospital, Bologna, Italy
| | - Giovanni Tripepi
- National Research Council-Institute of Clinical Physiology (CNR-IFC), Clinical Epidemiology of Renal Diseases and Hypertension, Ospedali Riuniti, Reggio Calabria, Italy
| | - Mario Plebani
- Laboratory Medicine Unit, Department of Medicine, University of Padua, Padua, Italy
| | - Andrea Aghi
- Department of Medicine, Clinica Medica 1, University of Padua, Padua, Italy
| | - Cristina Politi
- National Research Council-Institute of Clinical Physiology (CNR-IFC), Clinical Epidemiology of Renal Diseases and Hypertension, Ospedali Riuniti, Reggio Calabria, Italy
| | - Martina Zaninotto
- Laboratory Medicine Unit, Department of Medicine, University of Padua, Padua, Italy
| | - Thomas L Nickolas
- Division of Nephrology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Serge Ferrari
- Service des Maladies Osseuses, Département de Médecine, Hôpitaux Universitaires de Genève (HUG), Geneva, Switzerland
| | - Markus Ketteler
- Department of General Internal Medicine and Nephrology, Robert-Bosch-Krankenhaus, Stuttgart, Germany
| | - Gaetano La Manna
- Nephrology Dialysis and Kidney Transplantation Unit, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Azienda Ospedaliero-Universitaria di Bologna, S. Orsola Malpighi Hospital, Bologna, Italy
| | - Lorenzo Gasperoni
- Nephrology Dialysis and Kidney Transplantation Unit, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Azienda Ospedaliero-Universitaria di Bologna, S. Orsola Malpighi Hospital, Bologna, Italy
| | - Piergiorgio Messa
- Unit of Nephrology, Dialysis and Kidney Transplantation, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca' Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy.,Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | | | - Maurizio Gallieni
- Nephrology and Dialysis Unit, Azienda Socio-Sanitaria Territoriale (ASST) Fatebenefratelli Sacco, Department of Clinical and Biomedical Sciences 'Luigi Sacco', Università di Milano, Milan, Italy
| | - Laura Cosmai
- Onco-Nephrology Outpatient Clinic, Nephrology and Dialysis Unit, Azienda Socio-Sanitaria Territoriale (ASST) Fatebenefratelli Sacco, Fatebenefratelli Hospital, Milan, Italy
| | - Francesco Locatelli
- Alessandro Manzoni Hospital, Azienda Socio-Sanitaria Territoriale (ASST) Lecco, Lecco, Italy
| | - Giorgio Iervasi
- National Research Council (CNR), Institute of Clinical Physiology (IFC), Pisa, Italy
| | - Roberto Vettor
- Department of Medicine, University of Padova, Padova, Italy
| | | | - Stefania Sella
- Department of Medicine, Clinica Medica 1, University of Padua, Padua, Italy
| | | | - Sandro Giannini
- Department of Medicine, Clinica Medica 1, University of Padua, Padua, Italy
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Abstract
Bone fragility fractures remain an important worldwide health and economic problem due to increased morbidity and mortality. The current methods for predicting fractures are largely based on the measurement of bone mineral density and the utilization of mathematical risk calculators based on clinical risk factors for bone fragility. Despite these approaches, many bone fractures remain undiagnosed. Therefore, current research is focused on the identification of new factors such as bone turnover markers (BTM) for risk calculation. BTM are a group of proteins and peptides released during bone remodeling that can be found in serum or urine. They derive from bone resorptive and formative processes mediated by osteoclasts and osteoblasts, respectively. Potential use of BTM in monitoring these phenomenon and therefore bone fracture risk is limited by physiologic and pathophysiologic factors that influence BTM. These limitations in predicting fractures explain why their inclusion in clinical guidelines remains limited despite the large number of studies examining BTM.
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Affiliation(s)
- Lisa Di Medio
- Department of Surgery and Translational Medicine, University Hospital of Florence, Florence, Italy.
| | - Maria Luisa Brandi
- Department of Surgery and Translational Medicine, University Hospital of Florence, Florence, Italy
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8
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Hu L, Ji J, Li D, Meng J, Yu B. The combined effect of vitamin K and calcium on bone mineral density in humans: a meta-analysis of randomized controlled trials. J Orthop Surg Res 2021; 16:592. [PMID: 34649591 PMCID: PMC8515712 DOI: 10.1186/s13018-021-02728-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 09/15/2021] [Indexed: 01/22/2023] Open
Abstract
Background With the increasing incidence of osteoporosis, vitamin K and calcium have been linked to bone mineral density (BMD) and undercarboxylated osteocalcin (UcOC) in many studies, but the results of studies of the combined effect of vitamin K and calcium on BMD and UcOC in humans have been inconsistent. We conducted a systematic review of randomized controlled trials to assess the effect of this combination treatment on BMD and UcOC in humans. Methods A search for articles was conducted using PubMed, Embase, and the Cochrane Library database up to March 2021 (no language restrictions). We also reviewed the reference lists of the relevant publications and reviews to locate additional publications. The standard mean difference (SMD) was used as the primary measure of effect size. Our main endpoints were lumbar BMD, femoral neck BMD, hip BMD, total femoral BMD, and UcOC from baseline to end point. We performed subgroup analysis, heterogeneity testing, and assessment of publication bias. Results A total of 1346 patients from 10 randomized controlled trials were included in the meta-analysis. The forest plot analysis revealed that vitamin K combined with calcium was associated with a higher lumbar spine BMD compared to controls. The SMD was 0.20 [95% confidence interval (CI): 0.07 to 0.32]. Vitamin K and calcium supplementation led to a significant decrease in UcOC (SMD: − 1.71, 95% CI: − 2.45 to − 0.96). Subgroup analysis showed that vitamin K2 and vitamin K1 had SMDs of 0.30 (95% CI: 0.10 to 0.51) and SMDs of 0.14 (95% CI: − 0.02 to 0.29), and calcium dosages of ≤ 1000 mg/d or > 1000 mg/d had SMDs of 0.19 (95% CI: 0.05 to 0.32) and 0.26 (95% CI: − 0.04 to 0.55). Conclusion The combination of vitamin K and calcium has a positive effect on lumbar BMD and decreases the level of UcOC. Registration: The protocol for this meta-analysis was registered at the International Prospective Register of Systematic Reviews (CRD42021251825).
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Affiliation(s)
- Liyou Hu
- Shandong University of Traditional Chinese Medicine, Jinan, 250014, China
| | - Jindou Ji
- Shandong University of Traditional Chinese Medicine, Jinan, 250014, China
| | - Dong Li
- Shandong University of Traditional Chinese Medicine, Jinan, 250014, China
| | - Jing Meng
- Shandong University of Traditional Chinese Medicine, Jinan, 250014, China
| | - Bo Yu
- Department of Orthopaedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jingshi Road 16369, Jinan, 250014, China.
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9
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Kaesler N, Schurgers LJ, Floege J. Vitamin K and cardiovascular complications in CKD patients. Kidney Int 2021; 100:1023-1036. [PMID: 34310988 DOI: 10.1016/j.kint.2021.06.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 06/08/2021] [Accepted: 06/11/2021] [Indexed: 01/07/2023]
Abstract
Vitamin K, well known for its role in coagulation, encompasses two major subgroups: Vitamin K1 is exclusively synthesized by plants, whereas vitamin K2 mostly originates from bacterial synthesis. Vitamin K serves as a cofactor for the enzyme γ-glutamyl carboxylase, which carboxylates and thereby activates various vitamin K dependent proteins. Several vitamin K-dependent proteins are synthesized in bone but the role of vitamin K for bone health in CKD patients, in particular the prevention of osteoporosis is still not firmly established. Here we focus on another prominent action of vitamin K, in particular vitamin K2, namely the activation of matrix Gla protein (MGP), the most potent inhibitor of cardiovascular calcifications. Multiple observational studies link relative vitamin K deficiency or low intake to cardiovascular calcification progress, morbidity and mortality. Patients with advanced chronic kidney disease (CKD) are particularly vitamin K deficient, in part because of dietary restrictions but possibly also due to impaired endogenous recycling of vitamin K. At the same time this population is characterized by markedly accelerated cardiovascular calcifications and mortality. High dose dietary supplementation with vitamin K2, in particular the most potent form menaquinone-7 (MK7), can potently reduce circulating levels of dephosphorylated uncarboxylated, i.e. inactive MGP in patients with end stage kidney disease. However, despite this compelling data basis, several randomized controlled trials with high dose MK7 supplements in patients with advanced CKD have failed to confirm cardiovascular benefits. Here we discuss potential reasons and solutions for this.
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Affiliation(s)
- Nadine Kaesler
- Division of Nephrology and Rheumatology, University Hospital, Rheinisch Westfälische Technische Hochschule, Aachen, Germany
| | - Leon J Schurgers
- Department of Biochemistry and Cardiovascular Research Institute Maastricht, School for Cardiovascular Diseases, Maastricht University, Maastricht, the Netherlands; Institute of Experimental Medicine and Systems Biology, Rheinisch Westfälische Technische Hochschule, Aachen University, Aachen, Germany
| | - Jürgen Floege
- Division of Nephrology and Rheumatology, University Hospital, Rheinisch Westfälische Technische Hochschule, Aachen, Germany.
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10
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Liu Y, Mosenthin R, Zhao L, Zhang J, Ji C, Ma Q. Vitamin K alleviates bone calcium loss caused by Salmonella Enteritidis through carboxylation of osteocalcin. J Anim Sci Biotechnol 2021; 12:80. [PMID: 34253252 PMCID: PMC8276384 DOI: 10.1186/s40104-021-00604-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 05/13/2021] [Indexed: 11/18/2022] Open
Abstract
Background The present study aimed at evaluating the effect of vitamin K (VK) supplementation on bone health of laying hens challenged by Salmonella Enteritidis. Methods A total of 80 32-week-old double negative salmonella-free brown-egg laying hens were randomly assigned to 4 treatments with 20 replicates each (1 bird per replicate) according to a 2 × 2 factorial design with 2 dietary VK supplementation levels [0 mg/kg (VK0) vs 2 mg/kg VK (VK2) and 2 challenge treatments [Salmonella Enteritidis (SE) vs physiological saline solution (PS)]. During the last 3 days of week 43 of age, birds of both VK treatments were either orally challenged with 1.0 mL suspension of 109 cfu/mL S. Enteritidis daily or received the same volume of PS. Results The laying rate, daily egg mass, tibia strength, CT, cOC and cOC/(cOC + ucOC) of VK2 treatment increased (P < 0.05) in contrast to VK0, however, the medullary area and ucOC of VK2 treatment decreased (P < 0.05) in contrast to VK0. Mortality, medullary area, serum Ca content of SE treatments increased (P < 0.05) in contrast to PS treatments. In both SE treatments, the decrease (P < 0.05) in birds’ tibia strength was associated with higher (P < 0.05) Ca levels in serum. There is an interaction (P < 0.05) between SE challenge and VK levels with regard to tibia strength and serum Ca levels. At week 42, serum CT was positively correlated with cOC (R = 0.99, P = 0.009); at week 44, tibia strength was positively correlated with BMD (R = 0.95, P = 0.045), but negatively correlated with medullary area (R = − 0.98, P = 0.018). Conclusions VK (2 mg/kg) supplementation to diets of laying hens can enhance bone strength under challenge situations with Salmonella Enteritidis. Medullary area has proven to be a sensitive biomarker for bone calcium loss caused by SE infection.
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Affiliation(s)
- Yaojun Liu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Rainer Mosenthin
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China.,Institute of Animal Science, University of Hohenheim, 70593, Stuttgart, Germany
| | - Lihong Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Jianyun Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Cheng Ji
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Qiugang Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China.
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11
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Fusaro M, Cianciolo G, Evenepoel P, Schurgers L, Plebani M. Vitamin K in CKD Bone Disorders. Calcif Tissue Int 2021; 108:476-485. [PMID: 33409597 DOI: 10.1007/s00223-020-00792-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 12/05/2020] [Indexed: 01/07/2023]
Abstract
Vitamin K is principally known because it is involved in blood coagulation. Furthermore, epidemiological studies showed that its deficit was associated with increased fragility fractures, vascular calcification and mortality. There are two main types of vitamin K vitamers: Phylloquinone (or PK) and Menaquinones (MKn). Vitamin K acts both as coenzyme of y-glutamyl carboxylase (GGCX) transforming undercarboxylated in carboxylated vitamin K-dependent proteins (e.g., Osteocalcin and Matrix Gla Protein) and as a ligand of the nuclear steroid and xenobiotic receptor (SXR) (in murine species Pregnane X Receptor: PXR), expressed in osteoblasts. It has been highlighted that the uremic state is a condition of greater vitamin K deficiency than the general population with resulting higher prevalence of bone fractures, vascular calcifications and mortality. The purpose of this literature review is to evaluate the protective role of Vitamin K in bone health in CKD patients.
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Affiliation(s)
- M Fusaro
- National Research Council (CNR), Institute of Clinical Physiology (IFC), Pisa Via G. Moruzzi 1, 56124, Pisa, PI, Italy.
- Department of Medicine, University of Padova, Via Giustiniani 2, 35128, Padova, PD, Italy.
| | - G Cianciolo
- Department of Experimental Diagnostic and Specialty Medicine (DIMES), Nephrology, Dialysis and Renal Transplant Unit, S. Orsola Hospital, University of Bologna, Bologna, Italy
| | - P Evenepoel
- Laboratory of Nephrology, Department of Immunology and Microbiology, KU Leuven, Leuven, Belgium
| | - L Schurgers
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, 6200MD, Maastricht, The Netherlands
| | - M Plebani
- Laboratory Medicine Unit, Department of Medicine, University of Padua, Padua, Italy
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12
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Kuang X, Liu C, Guo X, Li K, Deng Q, Li D. The combination effect of vitamin K and vitamin D on human bone quality: a meta-analysis of randomized controlled trials. Food Funct 2021; 11:3280-3297. [PMID: 32219282 DOI: 10.1039/c9fo03063h] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Previous studies did not draw a consistent conclusion about the effects of vitamin K combined with vitamin D on human skeletal quality. METHOD AND FINDINGS A comprehensive search on Web of Science, PubMed, Embase and the Cochrane Library (from 1950 to February 2020) and bibliographies of relevant articles was undertaken, with the meta-analysis of eight randomized controlled trials (RCTs) including a total of 971 subjects. Vitamin K combined with vitamin D significantly increased the total bone mineral density (BMD): the pooled effect size was 0.316 [95% CI (confidence interval), 0.031 to 0.601]. A significant decrease in undercarboxylated osteocalcin (-0.945, -1.113 to -0.778) can be observed with the combination of vitamin K and D. Simultaneously, subgroup analysis showed that K2 or vitamin K (not specified) supplement was less than 500 μg d-1, which when combined with vitamin D can significantly increase the total BMD compared with the control group fed a normal diet or the group with no treatment (0.479, 0.101 to 0.858 and 0.570, 0.196 to 0.945). CONCLUSIONS The combination of vitamin K and D can significantly increase the total BMD and significantly decrease undercarboxylated osteocalcin, and a more favorable effect is expected when vitamin K2 is used.
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Affiliation(s)
- Xiaotong Kuang
- Institute of Nutrition and Health, Qingdao University, Qingdao, China.
| | - Chunxiao Liu
- Institute of Nutrition and Health, Qingdao University, Qingdao, China.
| | - Xiaofei Guo
- Institute of Nutrition and Health, Qingdao University, Qingdao, China.
| | - Kelei Li
- Institute of Nutrition and Health, Qingdao University, Qingdao, China.
| | - Qingxue Deng
- Institute of Nutrition and Health, Qingdao University, Qingdao, China.
| | - Duo Li
- Institute of Nutrition and Health, Qingdao University, Qingdao, China.
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13
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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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14
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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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15
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Dorrington N, Fallaize R, Hobbs DA, Weech M, Lovegrove JA. A Review of Nutritional Requirements of Adults Aged ≥65 Years in the UK. J Nutr 2020; 150:2245-2256. [PMID: 32510125 DOI: 10.1093/jn/nxaa153] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 02/24/2020] [Accepted: 05/05/2020] [Indexed: 01/16/2023] Open
Abstract
Appropriate dietary choices in later life may reduce the risk of chronic diseases and rate of functional decline, however, there is little well-evidenced age-specific nutritional guidance in the UK for older adults, making it challenging to provide nutritional advice. Therefore, the aim of this critical review was to propose evidence-based nutritional recommendations for older adults (aged ≥65 y). Nutrients with important physiological functions in older adults were selected for inclusion in the recommendations. For these nutrients: 1) recommendations from the UK Scientific Advisory Committee for Nutrition (SACN) reports were reviewed and guidance retained if recent and age-specific, and 2) a literature search conducted where SACN guidance was not sufficient to set or confirm recommendations for older adults, searching Web of Science up to March 2020. Data extracted from a total of 190 selected publications provided evidence to support age-specific UK recommendations for protein (1.2 g·kg-1·d-1), calcium (1000 mg·d-1), folate (400 μg·d-1), vitamin B-12 (2.4 μg·d-1), and fluid (1.6 L·d-1 women, 2.0 L·d-1 men) for those ≥65 y. UK recommendations for carbohydrates, free sugars, dietary fiber, dietary fat and fatty acids, sodium, and alcohol for the general population are likely appropriate for older adults. Insufficient evidence was identified to confirm or change recommendations for all other selected nutrients. In general, significant gaps in current nutritional research among older adults existed, which should be addressed to support delivery of tailored nutritional guidance to this age group to promote healthy aging.
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Affiliation(s)
- Nicole Dorrington
- Hugh Sinclair Unit of Human Nutrition and Institute of Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom
| | - Rosalind Fallaize
- Hugh Sinclair Unit of Human Nutrition and Institute of Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom.,School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom
| | - Ditte A Hobbs
- Hugh Sinclair Unit of Human Nutrition and Institute of Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom
| | - Michelle Weech
- Hugh Sinclair Unit of Human Nutrition and Institute of Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom
| | - Julie A Lovegrove
- Hugh Sinclair Unit of Human Nutrition and Institute of Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom
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16
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Guo S, Xv J, Li Y, Bi Y, Hou Y, Ding B. Interactive effects of dietary vitamin K 3 and Bacillus subtilis PB6 on the growth performance and tibia quality of broiler chickens with sex separate rearing. Animal 2020; 14:1610-1618. [PMID: 32054553 DOI: 10.1017/s1751731120000178] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Both vitamin K and probiotics can promote the bone health of poultry and mammals. The present study was conducted to investigate the interactive effects between vitamin K3 (VK3) and Bacillus subtilis PB6 on the growth performance and tibia quality of broiler chickens with sex separate rearing. In a 3 × 2 × 2 factorial arrangement, 720 one-day-old broiler chicks (Arbor Acres) were assigned to 12 groups with three levels of dietary VK3 (0, 0.5 and 4.0 mg/kg), with or without probiotic supplementation (500 g/t) and with sex separation (male and female). Each group included 3 replicates with 20 birds per replicate. During day 1 to 21, 0.5 and 4.0 mg/kg of VK3 increased average daily gain (ADG) of all birds and average daily feed intake of male birds (P < 0.05). During day 22 to 42, probiotic supplementation increased the ADG of birds (P < 0.05). Probiotic addition increased the weight, length, diameter and strength of tibia in all birds, and 0.5 and 4.0 mg/kg of VK3 increased the tibial breaking strength of male birds at day 21 (P < 0.05). Vitamin K3 and probiotic synergistically increased tibial breaking strength at day 42 and ash content at day 21 (P < 0.05). Three factors exhibited interactive effects on the chemical composition of tibia at day 42, and female birds fed 4 mg/kg of VK3 and probiotic had the highest contents of ash, calcium and phosphorus (P < 0.05). Bacillus subtilis PB6 increased the serum phosphorus level of male birds at day 21 and serum calcium level of female ones at day 42 (P < 0.05). At day 21, in the probiotic-supplemented birds, serum osteocalcin (OCN) and bone-specific alkaline phosphatase (BALP) were increased by 0 and 4.0 mg/kg of VK3, respectively (P < 0.05). Probiotic increased serum OCN and cooperated with VK3 to increase the serum BALP at day 42 (P < 0.05). Vitamin K3 and probiotic synergistically down-regulated the mRNA expression of Runt-related transcription factor 2 and OCN at day 21 (P < 0.05). Vitamin K3 down-regulated the alkaline phosphatase (liver/bone/kidney) expression in male birds at day 21 and 42, but probiotic up-regulated the expression of these genes at day 42 (P < 0.05). In conclusion, VK3 and B. subtilis PB6 promoted the growth performance of broilers during starter and grower phases, respectively. They synergistically improved the physical and chemical traits of tibias, especially in grower phase, by modulating calcium and phosphorus metabolism as well as osteogenic gene expression.
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Affiliation(s)
- S Guo
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan430023, China
| | - J Xv
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan430023, China
| | - Y Li
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan430023, China
| | - Y Bi
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan430023, China
| | - Y Hou
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan430023, China
| | - B Ding
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan430023, China
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17
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Impact of calcium, vitamin D, vitamin K, oestrogen, isoflavone and exercise on bone mineral density for osteoporosis prevention in postmenopausal women: a network meta-analysis. Br J Nutr 2020. [DOI: 10.1017/s0007114519002290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
AbstractThe aim of this network meta-analysis is to compare bone mineral density (BMD) changes among different osteoporosis prevention interventions in postmenopausal women. We searched MEDLINE, Embase and Cochrane Library from inception to 24 February 2019. Included studies were randomised controlled trials (RCT) comparing the effects of different treatments on BMD in postmenopausal women. Studies were independently screened by six authors in three pairs. Data were extracted independently by two authors and synthesised using Bayesian random-effects network meta-analysis. The results were summarised as mean difference in BMD and surface under the cumulative ranking (SUCRA) of different interventions. A total of ninety RCT (10 777 participants) were included. Ca, vitamin D, vitamin K, oestrogen, exercise, Ca + vitamin D, vitamin D + vitamin K and vitamin D + oestrogen were associated with significantly beneficial effects relative to no treatment or placebo for lumbar spine (LS). For femoral neck (FN), Ca, exercise and vitamin D + oestrogen were associated with significantly beneficial intervention effects relative to no treatment. Ranking probabilities indicated that oestrogen + vitamin D is the best strategy in LS, with a SUCRA of 97·29 % (mean difference: +0·072 g/cm2 compared with no treatment, 95 % credible interval (CrI) 0·045, 0·100 g/cm2), and Ca + exercise is the best strategy in FN, with a SUCRA of 79·71 % (mean difference: +0·029 g/cm2 compared with placebo, 95 % CrI –0·00093, 0·060 g/cm2). In conclusion, in postmenopausal women, many interventions are valuable for improving BMD in LS and FN. Different intervention combinations can affect BMD at different sites diversely.
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18
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Yan N, Liu Y, Liu L, Du Y, Liu X, Zhang H, Zhang Z. Bioactivities and Medicinal Value of Solanesol and Its Accumulation, Extraction Technology, and Determination Methods. Biomolecules 2019; 9:biom9080334. [PMID: 31382471 PMCID: PMC6722674 DOI: 10.3390/biom9080334] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 07/20/2019] [Accepted: 08/01/2019] [Indexed: 11/20/2022] Open
Abstract
Solanesol, an aliphatic terpene alcohol composed of nine isoprene units, is mainly found in solanaceous plants. Particularly, tobacco (Nicotiana tabacum), belonging to the Solanaceae family, is the richest plant source of solanesol, and its leaves have been regarded as the ideal material for solanesol extraction. Since the discovery of solanesol in tobacco, significant progress has been achieved in research on solanesol’s bioactivities, medicinal value, accumulation, extraction technology, and determination methods. Solanesol possesses strong free radical absorption ability and antioxidant activity owing to the presence of several non-conjugated double bonds. Notably, solanesol’s anti-inflammatory, neuroprotective, and antimicrobial activities have been previously demonstrated. Solanesol is a key intermediate in the synthesis of coenzyme Q10, vitamin K2, and the anticancer agent synergiser N-solanesyl-N,N′-bis(3,4-dimethoxybenzyl) ethylenediamine. Other applications of solanesol include solanesol derivative micelles for hydrophobic drug delivery, solanesol-derived scaffolds for bioactive peptide multimerization, and solanesol-anchored DNA for mediating vesicle fusion. Solanesol accumulation in plants is influenced by genetic and environmental factors, including biotic stresses caused by pathogen infections, temperature, illumination, and agronomic measures. Seven extraction technologies and seven determination methods of solanesol are also systematically summarized in the present review. This review can serve as a reference for solanesol’s comprehensive application.
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Affiliation(s)
- Ning Yan
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
| | - Yanhua Liu
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China
| | - Linqing Liu
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China
| | - Yongmei Du
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China
| | - Xinmin Liu
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China
| | - Hongbo Zhang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China
| | - Zhongfeng Zhang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China
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Hatziparasides G, Loukou I, Moustaki M, Douros K. Vitamin K and cystic fibrosis: A gordian knot that deserves our attention. Respir Med 2019; 155:36-42. [PMID: 31295676 DOI: 10.1016/j.rmed.2019.07.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 06/18/2019] [Accepted: 07/05/2019] [Indexed: 01/16/2023]
Abstract
Cystic fibrosis (CF) is an inherited genetic disorder with multiorgan involvement. Gastrointestinal tract dysfunction leads to fat and fat-soluble vitamins (A,D,E,K) malabsorption and deficiency of these vitamins. Subclinical vitamin K (VK) deficiency seems to be a common problem in CF patients. However, despite the rest of fat-soluble vitamins being routinely supplemented, this is not a universal clinical practice for VK. Inefficient levels of VK may have significant effects on blood coagulation and bone formation. There are also some data indicating that VK may play a key role on regulation of inflammation. Supplementing CF patients with VK seems rational, but the appropriate dosing regimens are still a matter of debate. This review will try to delineate the problem and communicate the latest opinions on this controversial issue.
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Affiliation(s)
- Gregorios Hatziparasides
- Pediatric Allergy and Respiratory Unit, 3rd Department of Pediatrics, University General Hospital "Attikon", School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Ioanna Loukou
- Cystic Fibrosis Dept, "Aghia Sophia" Children's Hospital, Athens, Greece
| | - Maria Moustaki
- Cystic Fibrosis Dept, "Aghia Sophia" Children's Hospital, Athens, Greece
| | - Konstantinos Douros
- Pediatric Allergy and Respiratory Unit, 3rd Department of Pediatrics, University General Hospital "Attikon", School of Medicine, National and Kapodistrian University of Athens, Athens, Greece.
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20
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Beneficial Effects of Vitamins K and D3 on Redox Balance of Human Osteoblasts Cultured with Hydroxyapatite-Based Biomaterials. Cells 2019; 8:cells8040325. [PMID: 30965604 PMCID: PMC6523281 DOI: 10.3390/cells8040325] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 04/03/2019] [Accepted: 04/05/2019] [Indexed: 02/07/2023] Open
Abstract
Hydroxyapatite-based biomaterials are commonly used in surgery to repair bone damage. However, the introduction of biomaterials into the body can cause metabolic alterations, including redox imbalance. Because vitamins D3 and K (K1, MK-4, MK-7) have pronounced osteoinductive, anti-inflammatory, and antioxidant properties, it is suggested that they may reduce the adverse effects of biomaterials. The aim of this study was to investigate the effects of vitamins D3 and K, used alone and in combination, on the redox metabolism of human osteoblasts (hFOB 1.19 cell line) cultured in the presence of hydroxyapatite-based biomaterials (Maxgraft, Cerabone, Apatos, and Gen-Os). Culturing of the osteoblasts in the presence of hydroxyapatite-based biomaterials resulted in oxidative stress manifested by increased production of reactive oxygen species and decrease of glutathione level and glutathione peroxidase activity. Such redox imbalance leads to lipid peroxidation manifested by an increase of 4-hydroxynonenal level, which is known to influence the growth of bone cells. Vitamins D3 and K were shown to help maintain redox balance and prevent lipid peroxidation in osteoblasts cultured with hydroxyapatite-based biomaterials. The strongest effect was observed for the combination of vitamin D3 and MK-7. Moreover, vitamins promoted growth of the osteoblasts, manifested by increased DNA biosynthesis. Therefore, it is suggested that the use of vitamins D3 and K may protect redox balance and support the growth of osteoblasts affected by hydroxyapatite-based biomaterials.
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Ozgen M, Cosan DT, Doganer F, Soyocak A, Armagan O, Kuzgun S, Aydogan AM, Gunes HV, Degirmenci I, Mutlu F. Is there any association between osteoporotic vertebral fracture and vitamin K epoxide reductase complex subunit-1 polymorphism in Turkish society? A pilot study. Clinics (Sao Paulo) 2019; 74:e739. [PMID: 30892416 PMCID: PMC6399659 DOI: 10.6061/clinics/2019/e739] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 11/28/2018] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVE In this study, the relationship between osteoporotic vertebral fractures and 9041 Guanine/Adenine and 3673 Guanine/Adenine polymorphisms related to the vitamin K epoxide reductase complex subunit-1 (VKORC1) gene in postmenopausal women with osteoporosis was investigated. METHOD DNA was isolated from blood samples collected from 150 women with postmenopausal osteoporosis. Genotyping of the two polymorphic regions (9041 Guanine/Adenine and 3673 Guanine/Adenine) in VKORC1 was performed using polymerase chain reaction-restriction fragment length polymorphism analysis. The presence of radiographic fractures among the 150 patients was ascertained by using the Genant method. RESULT At least one fracture was detected in 98 patients, and no fracture was observed in 52 patients on radiological images. We found no association between the 9041 Guanine/Adenine (p=0.283) and 3673 Guanine/Adenine (p=0.232) polymorphisms of the VKORC1 gene and the development of secondary postosteoporotic fractures in our study. CONCLUSION There was no relationship between osteoporotic vertebral fracture and VKORC1 gene polymorphism in a postmenopausal Turkish population.
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Affiliation(s)
- Merih Ozgen
- Department of Physical Medicine and Rehabilitation, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
- Corresponding author: E-mail: /
| | - Didem Turgut Cosan
- Department of Medical Biology, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Fulya Doganer
- Department of Biotechnology and Molecular Biology, Faculty of Arts and Sciences, Aksaray University, Aksaray, Turkey
| | - Ahu Soyocak
- Department of Medical Biology and Genetics, Faculty of Medicine, Istanbul Aydin University, Istanbul, Turkey
| | - Onur Armagan
- Department of Physical Medicine and Rehabilitation, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Selen Kuzgun
- Department of Physical Medicine and Rehabilitation, Zübeyde Hanım Campus, Eskişehir State Hospital, Eskisehir, Turkey
| | - Ayse Merve Aydogan
- Department of Physical Medicine and Rehabilitation, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Hasan Veysi Gunes
- Department of Medical Biology, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Irfan Degirmenci
- Department of Medical Biology, Faculty of Medicine, Kutahya Health Sciences University, Kutahya, Turkey
| | - Fezan Mutlu
- Department of Biostatistics and Medical Informatics, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
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Lacombe J, Ferron M. VKORC1L1, An Enzyme Mediating the Effect of Vitamin K in Liver and Extrahepatic Tissues. Nutrients 2018; 10:nu10080970. [PMID: 30050002 PMCID: PMC6116193 DOI: 10.3390/nu10080970] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 07/18/2018] [Accepted: 07/24/2018] [Indexed: 12/25/2022] Open
Abstract
Vitamin K is an essential nutrient involved in the regulation of blood clotting and tissue mineralization. Vitamin K oxidoreductase (VKORC1) converts vitamin K epoxide into reduced vitamin K, which acts as the co-factor for the γ-carboxylation of several proteins, including coagulation factors produced by the liver. VKORC1 is also the pharmacological target of warfarin, a widely used anticoagulant. Vertebrates possess a VKORC1 paralog, VKORC1-like 1 (VKORC1L1), but until very recently, the importance of VKORC1L1 for protein γ-carboxylation and hemostasis in vivo was not clear. Here, we first review the current knowledge on the structure, function and expression pattern of VKORC1L1, including recent data establishing that, in the absence of VKORC1, VKORC1L1 can support vitamin K-dependent carboxylation in the liver during the pre- and perinatal periods in vivo. We then provide original data showing that the partial redundancy between VKORC1 and VKORC1L1 also exists in bone around birth. Recent studies indicate that, in vitro and in cell culture models, VKORC1L1 is less sensitive to warfarin than VKORC1. Genetic evidence is presented here, which supports the notion that VKORC1L1 is not the warfarin-resistant vitamin K quinone reductase present in the liver. In summary, although the exact physiological function of VKORC1L1 remains elusive, the latest findings clearly established that this enzyme is a vitamin K oxidoreductase, which can support γ-carboxylation in vivo.
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Affiliation(s)
- Julie Lacombe
- Integrative and Molecular Physiology research unit, Institut de Recherches Cliniques de Montréal, Montréal, QC H2W 1R7, Canada.
| | - Mathieu Ferron
- Integrative and Molecular Physiology research unit, Institut de Recherches Cliniques de Montréal, Montréal, QC H2W 1R7, Canada.
- Department of Medicine and Molecular Biology Programs of the Faculty of Medicine, Université de Montréal, QC H3C 3J7, Canada.
- Division of Experimental Medicine, McGill University, Montréal, QC H4A 3J1, Canada.
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Vitamin K and Bone Metabolism: A Review of the Latest Evidence in Preclinical Studies. BIOMED RESEARCH INTERNATIONAL 2018; 2018:4629383. [PMID: 30050932 PMCID: PMC6040265 DOI: 10.1155/2018/4629383] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 05/27/2018] [Indexed: 01/09/2023]
Abstract
Bone is a metabolically active tissue that renews itself throughout one's life. Cytokines along with several hormonal, nutritional, and growth factors are involved in tightly regulated bone remodeling. Accordingly, vitamin K as a multifunctional vitamin has been recently deemed appreciable as a topic of research as it plays a pivotal role in maintenance of the bone strength, and it has been proved to have a positive impact on the bone metabolism. Vitamin K exerts its anabolic effect on the bone turnover in different ways such as promoting osteoblast differentiation, upregulating transcription of specific genes in osteoblasts, and activating the bone-associated vitamin k dependent proteins which play critical roles in extracellular bone matrix mineralization. There is also credible evidence to support the effects of vitamin k2 on differentiation of other mesenchymal stem cells into osteoblast. The main objective of the present paper is to comprehensively outline the preclinical studies on the properties of vitamin K and its effects on the bone metabolism. The evidence could shed light on further clinical studies to improve osteogenesis in bone graft surgeries.
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24
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Guañabens N, Parés A. Osteoporosis in chronic liver disease. Liver Int 2018; 38:776-785. [PMID: 29479832 DOI: 10.1111/liv.13730] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 02/19/2018] [Indexed: 12/15/2022]
Abstract
Osteoporosis is a frequent complication in patients with chronic liver disease, especially in end-stages and in chronic cholestasis, in addition to non-alcoholic fatty liver disease, haemochromatosis and alcoholism. Mechanisms underlying osteoporosis are poorly understood, but osteoporosis mainly results from low bone formation. In this setting, sclerostin, a key regulator of the Wnt/β-catenin signalling pathway which regulates bone formation, in addition to the effects of the retained substances of cholestasis such as bilirubin and bile acids on osteoblastic cells, may influence the decreased bone formation in chronic cholestasis. Similarly, the damaging effects of iron and alcohol on osteoblastic cells may partially explain bone disease in haemochromatosis and alcoholism. A role for proinflammatory cytokines has been proposed in different conditions. Increased bone resorption may occur in cholestatic women with advanced disease. Low vitamin D, poor nutrition and hypogonadism, may be contributing factors to the full picture of bone disorders in chronic liver disease.
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Affiliation(s)
- Núria Guañabens
- Metabolic Bone Diseases Unit, Department of Rheumatology, Hospital Clínic, IDIBAPS, CIBERehd, University of Barcelona, Barcelona, Spain
| | - Albert Parés
- Liver Unit, Hospital Clínic, IDIBAPS, CIBERehd, University of Barcelona, Barcelona, Spain
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25
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Villa JKD, Diaz MAN, Pizziolo VR, Martino HSD. Effect of vitamin K in bone metabolism and vascular calcification: A review of mechanisms of action and evidences. Crit Rev Food Sci Nutr 2018; 57:3959-3970. [PMID: 27437760 DOI: 10.1080/10408398.2016.1211616] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Osteoporosis is a public health concern associated with an increased risk of bone fractures and vascular calcification. Vitamin K presents unique benefits on these issues, although understudied. The two main forms of vitamin K are phylloquinone (vitamin K1) and menaquinone (vitamin K2). In this study, it was especially investigated the action of vitamin K2 in bones and vessels. Vitamin K2 has shown to stimulate bone formation by promoting osteoblast differentiation and carboxylation of osteocalcin, and increasing alkaline phosphatase, insulin-like growth factor-1, growth differentiation factor-15, and stanniocalcin 2 levels. Furthermore, vitamin K2 reduces the pro-apoptotic proteins Fas and Bax in osteoblasts, and decreases osteoclast differentiation by increasing osteoprotegerin and reducing the receptor activator of nuclear factor kappa-B ligand. In blood vessels, vitamin K2 reduces the formation of hydroxyapatite, through the carboxylation of matrix Gla protein and Gla rich protein, inhibits the apoptosis of vascular smooth muscle cells, by increasing growth arrest-specific gene 6, and reduces the transdifferentiation of vascular smooth muscle cells to osteoblasts. The commonly used dosage of vitamin K2 in human studies is 45 mg/day and its application can be an interesting strategy in benefitting bone and vascular health, especially to osteoporotic post-menopausal women.
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Affiliation(s)
- Julia Khéde Dourado Villa
- a Departamento de Bioquímica e Biologia Molecular , Universidade Federal de Viçosa , Minas Gerais , Brazil
| | - Marisa Alves Nogueira Diaz
- a Departamento de Bioquímica e Biologia Molecular , Universidade Federal de Viçosa , Minas Gerais , Brazil
| | - Virgínia Ramos Pizziolo
- a Departamento de Bioquímica e Biologia Molecular , Universidade Federal de Viçosa , Minas Gerais , Brazil
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26
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Abstract
The association between dietary vitamin K intake and the risk of fractures is controversial. Therefore we perform a meta-analysis of cohort or nested case-control studies to investigate the relationship between dietary vitamin K intake and the risk of fractures. A comprehensive search of PubMed and EMBASE (to July 11, 2016) was performed to identify cohort or nested case-control studies providing quantitative estimates between dietary vitamin K intake and the risk of fractures. Summary relative risk (RRs) with corresponding 95% confidence intervals (CIs) were pooled by using a random-effects model. Four cohort studies and one nested case-control study, with a total of 1114 fractures cases and 80,982 participants, were included in our meta-analysis. Vitamin K intake in all included studies refers exclusively to the intake of phylloquinone (vitamin K1), which is the predominant form of vitamin K in foods. We observed a statistically significant inverse association between dietary vitamin K intake and risk of fractures (highest vs. the lowest intake, RR = 0.78, 95% CI: 0.56-0.99; I = 59.2%, P for heterogeneity = .04). Dose-response analysis indicated that the pooled RR of fracture for an increase of 50 μg dietary vitamin K intake per day was 0.97 (95% CI: 0.95-0.99) without heterogeneity among studies (I = 25.9%, P for heterogeneity = .25). When stratified by follow-up duration, the RR of fracture for dietary vitamin K intake was 0.76 (95% CI: 0.58-0.93) in studies with more than 10 years of follow-up. Our study suggests that higher dietary vitamin K intake may moderately decrease the risk of fractures.
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Affiliation(s)
- Guangliang Hao
- Department of Traumatic Orthopedic Surgery, General Hospital of Jinan Military Command
| | - Bei Zhang
- Department of Gynaecology and Obstetrics, First People's Hospital of Jinan, Jinan, China
| | - Mingyong Gu
- Department of Traumatic Orthopedic Surgery, General Hospital of Jinan Military Command
| | - Chen Chen
- Department of Traumatic Orthopedic Surgery, General Hospital of Jinan Military Command
| | - Qiang Zhang
- Department of Traumatic Orthopedic Surgery, General Hospital of Jinan Military Command
| | - Guichun Zhang
- Department of Traumatic Orthopedic Surgery, General Hospital of Jinan Military Command
| | - Xuecheng Cao
- Department of Traumatic Orthopedic Surgery, General Hospital of Jinan Military Command
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27
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Yan N, Liu Y, Zhang H, Du Y, Liu X, Zhang Z. Solanesol Biosynthesis in Plants. Molecules 2017; 22:molecules22040510. [PMID: 28333111 PMCID: PMC6154334 DOI: 10.3390/molecules22040510] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 03/18/2017] [Accepted: 03/22/2017] [Indexed: 12/12/2022] Open
Abstract
Solanesol is a non-cyclic terpene alcohol composed of nine isoprene units that mainly accumulates in solanaceous plants. Solanesol plays an important role in the interactions between plants and environmental factors such as pathogen infections and moderate-to-high temperatures. Additionally, it is a key intermediate for the pharmaceutical synthesis of ubiquinone-based drugs such as coenzyme Q10 and vitamin K2, and anti-cancer agent synergizers such as N-solanesyl-N,N′-bis(3,4-dimethoxybenzyl) ethylenediamine (SDB). In plants, solanesol is formed by the 2-C-methyl-d-erythritol 4-phosphate (MEP) pathway within plastids. Solanesol’s biosynthetic pathway involves the generation of C5 precursors, followed by the generation of direct precursors, and then the biosynthesis and modification of terpenoids; the first two stages of this pathway are well understood. Based on the current understanding of solanesol biosynthesis, we here review the key enzymes involved, including 1-deoxy-d-xylulose 5-phosphate synthase (DXS), 1-deoxy-d-xylulose 5-phosphate reductoisomerase (DXR), isopentenyl diphosphate isomerase (IPI), geranyl geranyl diphosphate synthase (GGPPS), and solanesyl diphosphate synthase (SPS), as well as their biological functions. Notably, studies on microbial heterologous expression and overexpression of key enzymatic genes in tobacco solanesol biosynthesis are of significant importance for medical uses of tobacco.
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Affiliation(s)
- Ning Yan
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
| | - Yanhua Liu
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
| | - Hongbo Zhang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
| | - Yongmei Du
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
| | - Xinmin Liu
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
| | - Zhongfeng Zhang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
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28
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Zhang Y, Weng S, Yin J, Ding H, Zhang C, Gao Y. Vitamin K2 promotes mesenchymal stem cell differentiation by inhibiting miR‑133a expression. Mol Med Rep 2017; 15:2473-2480. [PMID: 28447758 PMCID: PMC5428867 DOI: 10.3892/mmr.2017.6308] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 01/13/2017] [Indexed: 12/24/2022] Open
Abstract
Vitamin K2 has been demonstrated to promote the osteogenic differentiation of mesenchymal stem cells; however, the mechanisms underlying this effect remain unclear. As microRNA (miR)-133a has been identified as a negative regulator of osteogenic differentiation, the present study hypothesized that vitamin K2 promoted osteogenesis by inhibiting miR-133a. Using human bone marrow stromal cells (hBMSCs) overexpressing miR-133a, or a control, the expression levels of osteogenesis-associated proteins, including runt-related transcription factor 2, alkaline phosphatase and osteocalcin, were analyzed. miR-133a significantly suppressed the osteogenic differentiation of hBMSCs. To determine the effect of vitamin K2 on miR-133a expression and osteogenesis, hBMSCs were treated with vitamin K2. Vitamin K2 inhibited miR-133a expression, which was accompanied by enhanced osteogenic differentiation. Furthermore, the expression levels of vitamin K epoxide reductase complex subunit 1, the key protein in γ-carboxylation, were downregulated by miR-133a overexpression and upregulated by vitamin K2 treatment, indicating a positive feedback on γ-carboxylation. The results of the present study suggested that vitamin K2 targets miR-133a to regulate osteogenesis.
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Affiliation(s)
- Yuelei Zhang
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Shiyang Weng
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Junhui Yin
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Hao Ding
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Changqing Zhang
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Youshui Gao
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
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29
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Zhang YL, Yin JH, Ding H, Zhang W, Zhang CQ, Gao YS. Protective effect of VK2 on glucocorticoid-treated MC3T3-E1 cells. Int J Mol Med 2016; 39:160-166. [PMID: 27909721 PMCID: PMC5179185 DOI: 10.3892/ijmm.2016.2817] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 11/24/2016] [Indexed: 12/31/2022] Open
Abstract
Glucocorticoids (GCs) contribute to the increased incidence of secondary osteoporosis and osteonecrosis, and medications for the prevention and treatment of these complications have been investigated for many years. Vitamin K2 (VK2) has been proven to promote bone formation both in vitro and in vivo. In this study, we examined the effects of VK2 on dexamethasone (DEX)-treated MC3T3-E1 osteoblastic cells. We observed that VK2 promoted the proliferation and enhanced the survival of dexamethasone-treated MC3T3-E1 cells. In addition, VK2 upregulated the expression levels of osteogenic marker proteins, such as Runt-related transcription factor 2 (Runx2), alkaline phosphatase (ALP) and osteocalcin, which were significantly inhibited by dexamethasone. On the whole, our findings indicate that VK2 has the potential to antagonize the effects of GCs on MC3T3-E1 cells, and may thus prove to be a promising agent for the prevention and treatment of GC-induced osteoporosis and osteonecrosis.
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Affiliation(s)
- Yue-Lei Zhang
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Jun-Hui Yin
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Hao Ding
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Wei Zhang
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Chang-Qing Zhang
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - You-Shui Gao
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
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30
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Yan N, Zhang H, Zhang Z, Shi J, Timko MP, Du Y, Liu X, Liu Y. Organ- and Growing Stage-Specific Expression of Solanesol Biosynthesis Genes in Nicotiana tabacum Reveals Their Association with Solanesol Content. Molecules 2016; 21:E1536. [PMID: 27854285 PMCID: PMC6273945 DOI: 10.3390/molecules21111536] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 11/11/2016] [Accepted: 11/11/2016] [Indexed: 11/16/2022] Open
Abstract
Solanesol is a noncyclic terpene alcohol that is composed of nine isoprene units and mainly accumulates in solanaceous plants, especially tobacco (Nicotiana tabacum L.). In the present study, RNA-seq analyses of tobacco leaves, stems, and roots were used to identify putative solanesol biosynthesis genes. Six 1-deoxy-d-xylulose 5-phosphate synthase (DXS), two 1-deoxy-d-xylulose 5-phosphate reductoisomerase (DXR), two 2-C-methyl-d-erythritol 4-phosphate cytidylyltransferase (IspD), four 4-diphosphocytidyl-2-C-methyl-d-erythritol kinase (IspE), two 2-C-methyl-d-erythritol 2,4-cyclo-diphosphate synthase (IspF), four 1-hydroxy-2-methyl-2-(E)-butenyl 4-diphosphate synthase (IspG), two 1-hydroxy-2-methyl-2-(E)-butenyl 4-diphosphate reductase (IspH), six isopentenyl diphosphate isomerase (IPI), and two solanesyl diphosphate synthase (SPS) candidate genes were identified in the solanesol biosynthetic pathway. Furthermore, the two N. tabacum SPS proteins (NtSPS1 and NtSPS2), which possessed two conserved aspartate-rich DDxxD domains, were highly homologous with SPS enzymes from other solanaceous plant species. In addition, the solanesol contents of three organs and of leaves from four growing stages of tobacco plants corresponded with the distribution of chlorophyll. Our findings provide a comprehensive evaluation of the correlation between the expression of different biosynthesis genes and the accumulation of solanesol, thus providing valuable insight into the regulation of solanesol biosynthesis in tobacco.
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Affiliation(s)
- Ning Yan
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
| | - Hongbo Zhang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
| | - Zhongfeng Zhang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
| | - John Shi
- Guelph Food Research Center, Agriculture and Agri-Food Canada, Guelph, ON N1G 5C9, Canada.
| | - Michael P Timko
- Department of Biology, University of Virginia, Charlottesville, VA 22904, USA.
| | - Yongmei Du
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
| | - Xinmin Liu
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
| | - Yanhua Liu
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
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31
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Martínez-Moneo E, Stigliano S, Hedström A, Kaczka A, Malvik M, Waldthaler A, Maisonneuve P, Simon P, Capurso G. Deficiency of fat-soluble vitamins in chronic pancreatitis: A systematic review and meta-analysis. Pancreatology 2016; 16:988-994. [PMID: 27681502 DOI: 10.1016/j.pan.2016.09.008] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 09/08/2016] [Accepted: 09/20/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS Chronic pancreatitis (CP) patients are at risk for fat-soluble vitamins (A, D, E, K) deficiency, but available studies are small and heterogeneous. We conducted a systematic review and meta-analysis to determine the prevalence of fat-soluble vitamins deficiency in CP patients. METHODS Medline was searched up to January 2016 for case series and case-control studies reporting prevalence of fat-soluble vitamin deficiency in CP patients. The prevalent deficiency rate was pooled for included studies, and deficiency rate between CP and controls, with relative odds ratio (OR) and 95% confidence interval (CI) calculated for case-control studies. RESULTS Twelve studies including 548 patients included. With a random-effect model, the pooled prevalence rate of vitamin A, D and E deficiency were 16.8% (95%CI 6.9-35.7), 57.6% (95%CI 43.9-70.4) and 29.2% (95%CI 8.6-64.5) respectively, with considerable heterogeneity (I2 = 75%, 87.1% and 92%). Only one study evaluated vitamin K deficiency. The pooled OR for vitamin D deficiency in CP cases compared with controls was 1.17 (95% CI 0.77-1.78). Sensitivity analyses showed lower prevalence of vitamin A and E, and higher prevalence of vitamin D deficiency in high-quality studies. The rate of pancreatic exocrine insufficiency did not seem affect the deficiency rates, while the use of different cut-offs influences results and heterogeneity for vitamin E, but not A. CONCLUSIONS Fat-soluble vitamins deficiency is frequent in CP patients, with considerable heterogeneity. There is, however, no apparent increased risk of vitamin D deficiency in CP compared to controls. Larger, high-quality studies are necessary to better estimate the prevalence of fat-soluble vitamins deficiency, including vitamin K.
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Affiliation(s)
- Emma Martínez-Moneo
- Gastroenterology Department, Hospital Universitario Cruces, Barakaldo-Bizkaia, Spain
| | - Serena Stigliano
- Digestive & Liver Disease Unit, S. Andrea Hospital, University "Sapienza", Rome, Italy
| | | | - Aleksandra Kaczka
- Department of Digestive Tract Diseases, University Hospital, Lodz, Poland
| | - Marko Malvik
- Department of Endocrinology and Gastroenterology, Tartu University Hospital, University of Tartu, Estonia
| | | | - Patrick Maisonneuve
- Division of Epidemiology and Biostatistics, European Institute of Oncology, Milan, Italy
| | - Peter Simon
- Department of Medicine A, Ernst-Moritz-Arndt-University Greifswald, Germany
| | - Gabriele Capurso
- Digestive & Liver Disease Unit, S. Andrea Hospital, University "Sapienza", Rome, Italy.
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32
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Souza C, Santos TC, Murakami AE, Iwaki LCV, Mello JF. Influence of graded levels of calcium and vitamin K in the diets of laying hens during the growing phase and their effects on the laying phase. J Anim Physiol Anim Nutr (Berl) 2016; 101:974-983. [PMID: 27436519 DOI: 10.1111/jpn.12533] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 04/12/2016] [Indexed: 12/24/2022]
Abstract
The aim of this study was to evaluate the effect of dietary supplementation of vitamin K (vit K) and Ca in the diets of laying hens on bone and blood parameters and performance during the growing phase and the effects on the laying phase up to 32 weeks. The study utilized 120 Hy-Line W-36 pullets in the growing phase (13-18 weeks), 80 laying hens in the production phase (20-32 weeks), distributed in a completely randomized design in a 2 × 5 factorial arrangement, two levels of Ca (0.8 and 1.4%) and five levels of vit K supplementation (0, 2, 8, 16 and 32 mg/kg) with four experimental units. An experimental diet was fed during the growing phase, and the commercial diet was fed during the production phase and were analysed for biochemistry and bone variables at 18 and 32 weeks. In pullets, a significant interaction of levels of vit K and Ca was observed for total serum calcium (mg/dl), Seedor index, Ca in the bones (%) and medullary bone (%). Pullets at 18 weeks of age, receiving diets with 1.4% Ca, displayed a quadratic effect of vit K with better results for these variables with 17.86, 14.59, 14.48 and 16.80 mg/kg of vit K, respectively. For level 0.8% Ca no effect of vit K was observed. The treatments during the growing phase had no effect on egg production, performance and biochemistry serum until 32 weeks. Medullary bone (%), there was a significant interaction for 1.4% Ca and a quadratic effect for vit K, with greater medullary bone areas observed with 6.09 mg/kg vit K in the diet. Supplementation with vit K in a diet with 1.4% Ca during the growing phase allowed for an increase in the area of medullary bone at 18 weeks, which was maintained until 32 weeks.
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Affiliation(s)
- C Souza
- Department of Animal Science, State University of Maringá, Maringá, Paraná, Brazil
| | - T C Santos
- Department of Animal Science, State University of Maringá, Maringá, Paraná, Brazil
| | - A E Murakami
- Department of Animal Science, State University of Maringá, Maringá, Paraná, Brazil
| | - L C V Iwaki
- Department of Odontology, State University of Maringá, Maringá, Paraná, Brazil
| | - J F Mello
- Department of Animal Science, State University of Maringá, Maringá, Paraná, Brazil
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Qin XY, Fujii S, Shimizu A, Kagechika H, Kojima S. Carboxylic Derivatives of Vitamin K2 Inhibit Hepatocellular Carcinoma Cell Growth through Caspase/Transglutaminase-Related Signaling Pathways. J Nutr Sci Vitaminol (Tokyo) 2016; 61:285-90. [PMID: 26440634 DOI: 10.3177/jnsv.61.285] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Chemoprevention of hepatocellular carcinoma (HCC) is one of the most challenging aspects of medical research. Vitamin K2 (VK2) has been suggested for its chemopreventive role in treatment of HCC, while inconsistent results in clinical trials have been reported. The present study was initiated to add to our insight into the anti-HCC cell proliferative effect of VK2 and its derivatives from a viewpoint of chemical structure. No significant effect was observed with original VK2, while VK2 derivatives bearing both isoprene units and a carboxyl-terminated side chain dose-dependently inhibited the growth of HCC cells without affecting normal liver cells. Loss-of-function analyses revealed that the anti-HCC cell activity by the VK2 derivatives was not mediated by a VK2 binding protein Bcl-2 homologous antagonist/killer (Bak) but rather associated with caspase/transglutaminase-related signaling pathways. Further studies on the carboxylic derivatives of VK2 bearing isoprene structural units introduced in this study might shed new light on the systemic treatment and prevention of HCC.
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Affiliation(s)
- Xian-Yang Qin
- Micro-Signaling Regulation Technology Unit, RIKEN Center for Life Science Technologies
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Southee R, Haroon S, Ebrahiminezad A, Ghasemi Y, Berenjian A. Novel functional fermented dairy product rich in menaquinone-7. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2016. [DOI: 10.1016/j.bcab.2016.04.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Baj A, Wałejko P, Kutner A, Kaczmarek Ł, Morzycki JW, Witkowski S. Convergent Synthesis of Menaquinone-7 (MK-7). Org Process Res Dev 2016. [DOI: 10.1021/acs.oprd.6b00037] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Aneta Baj
- Institute
of Chemistry, University of Białystok, Ciołkowskiego 1K, 15-245 Białystok, Poland
| | - Piotr Wałejko
- Institute
of Chemistry, University of Białystok, Ciołkowskiego 1K, 15-245 Białystok, Poland
| | - Andrzej Kutner
- Pharmaceutical Research Institute, Rydygiera
8, 01-793 Warszawa, Poland
| | - Łukasz Kaczmarek
- Pharmaceutical Research Institute, Rydygiera
8, 01-793 Warszawa, Poland
| | - Jacek W. Morzycki
- Institute
of Chemistry, University of Białystok, Ciołkowskiego 1K, 15-245 Białystok, Poland
| | - Stanisław Witkowski
- Institute
of Chemistry, University of Białystok, Ciołkowskiego 1K, 15-245 Białystok, Poland
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Chen GD, Dong XW, Zhu YY, Tian HY, He J, Chen YM. Adherence to the Mediterranean diet is associated with a higher BMD in middle-aged and elderly Chinese. Sci Rep 2016; 6:25662. [PMID: 27157300 PMCID: PMC4860711 DOI: 10.1038/srep25662] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 04/21/2016] [Indexed: 01/12/2023] Open
Abstract
Previous studies showed that better adherence to the Mediterranean diet (MD) is associated with lower risk of chronic diseases, but limited data are available on bone health. We investigated the association of the MD with bone mineral density (BMD) in Chinese adults. We included 2371 participants aged 40–75 years in this community-based cross-sectional study. Dietary information was assessed at baseline and a 3-year follow-up. Alternate Mediterranean diet (aMed) scores were calculated. BMD was determined at the second survey. After adjusting for potential covariates, higher aMed scores were positively and dose-dependently associated with BMD (all P-trends < 0.05). The BMD values were 1.94% (whole body), 3.01% (lumbar spine), 2.80% (total hip), 2.81% (femur neck), 2.62% (trochanter), and 2.85% (intertrochanter) higher in the quintile 5 (highest, vs. quintile 1) aMed scores for all of the subjects (all P-values < 0.05). Similar associations were found after stratifying by gender (P-interaction = 0.338–0.968). After excluding the five non-significant components of vegetables, legumes, fish, monounsaturated to saturated fat ratio, and alcohol intake from the aMed scores, the percentage mean differences were substantially increased by 69.1–150% between the extreme quintiles. In conclusion, increased adherence to the MD shows protective associations with BMD in Chinese adults.
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Affiliation(s)
- Geng-Dong Chen
- Department of Medical Statistics &Epidemiology and Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Xiao-Wei Dong
- Department of Medical Statistics &Epidemiology and Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Ying-Ying Zhu
- Department of Medical Statistics &Epidemiology and Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Hui-Yuan Tian
- Department of Medical Statistics &Epidemiology and Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Juan He
- Department of Medical Statistics &Epidemiology and Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Yu-Ming Chen
- Department of Medical Statistics &Epidemiology and Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
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Zhang Y, Yin J, Ding H, Zhang C, Gao YS. Vitamin K2 Ameliorates Damage of Blood Vessels by Glucocorticoid: a Potential Mechanism for Its Protective Effects in Glucocorticoid-induced Osteonecrosis of the Femoral Head in a Rat Model. Int J Biol Sci 2016; 12:776-85. [PMID: 27313492 PMCID: PMC4910597 DOI: 10.7150/ijbs.15248] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 03/25/2016] [Indexed: 12/22/2022] Open
Abstract
Glucocorticoid has been reported to decrease blood vessel number and harm the blood supply in the femoral head, which is recognized to be an important mechanism of glucocorticoid-induced osteonecrosis of the femoral head (ONFH). To prevent glucocorticoid-induced ONFH, medication that promotes both bone formation and angiogenesis would be ideal. Vitamin K2 has been revealed to play an important role in bone metabolism; however, few studies have focused on the effect of Vitamin K2 on new vascular formation. Thus, this study aimed to investigate whether Vitamin K2 promoted new blood vessel formation in the presence of glucocorticoids, both in vitro and in vivo. The effect of Vitamin K2 on viability, migration, in vitro tube formation, and VEGF, vWF, CD31, KDR, Flt and PDGFB in EAhy926 incubated with or without dexamethasone were elucidated. VEGF, TGF-β and BMP-2, angiogenesis-related proteins secreted by osteoblasts, were also detected in the osteoblast-like cell line of MG63. In addition, blood vessels of the femoral head in rats administered with or without methylprednisolone and Vitamin K2 were evaluated using angiography and CD31 staining. In vitro studies showed that Vitamin K2 significantly protected endothelial cells from dexamethasone-induced apoptosis, promoted endothelial cell migration and in vitro tube formation. Angiogenesis-related proteins both in EAhy926 and MG63 were also upregulated by Vitamin K2 when cotreated with dexamethasone. In vivo studies showed enhanced blood vessel volume and CD31-positive staining cells in rats cotreated with VK2 and methylprednisolone compared to rats treated with methylprednisolone only. Collectively, Vitamin K2 has the ability to promote angiogenesis in vitro and to ameliorate vessels of the femoral head in glucocorticoid-treated rats in vivo, indicating that Vitamin K2 is a promising drug that may be used to prevent steroid-induced ONFH.
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Affiliation(s)
- Yuelei Zhang
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Junhui Yin
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Hao Ding
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Changqing Zhang
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - You-Shui Gao
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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Mitchell PJ, Cooper C, Dawson-Hughes B, Gordon CM, Rizzoli R. Life-course approach to nutrition. Osteoporos Int 2015; 26:2723-42. [PMID: 26412214 PMCID: PMC4656714 DOI: 10.1007/s00198-015-3288-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 08/11/2015] [Indexed: 01/12/2023]
Abstract
This narrative review summarizes the role that nutrition plays in the development and maintenance of a healthy skeleton throughout the life-course. Nutrition has a significant influence on bone health throughout the life cycle. This narrative review summarizes current knowledge and guidance pertaining to the development and maintenance of a healthy skeleton. The primary objectives proposed for good bone health at the various stages of life are the following: Children and adolescents: achieve genetic potential for peak bone mass Adults: avoid premature bone loss and maintain a healthy skeleton Seniors: prevention and treatment of osteoporosis Findings from cohort studies, randomized controlled trials, systematic reviews and meta-analyses, in addition to current dietary guidelines, are summarized with the intention of providing clear nutritional guidance for these populations and pregnant women.
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Affiliation(s)
- P J Mitchell
- Synthesis Medical NZ Ltd, Auckland, New Zealand
- University of Notre Dame Australia, Sydney, Australia
| | - C Cooper
- NIHR Musculoskeletal Biomedical Research Unit, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK.
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton General Hospital, Southampton, UK.
| | - B Dawson-Hughes
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, USA
| | - C M Gordon
- Divisions of Adolescent Medicine and Endocrinology, Hasbro Children's Hospital, Alpert Medical School of Brown University, Providence, RI, USA
| | - R Rizzoli
- Division of Bone Diseases, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
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Gajic-Veljanoski O, Cheung AM, Bayoumi AM, Tomlinson G. A tutorial on Bayesian bivariate meta-analysis of mixed binary-continuous outcomes with missing treatment effects. Stat Med 2015; 35:2092-108. [DOI: 10.1002/sim.6791] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 09/27/2015] [Accepted: 10/13/2015] [Indexed: 01/27/2023]
Affiliation(s)
- Olga Gajic-Veljanoski
- Osteoporosis Program; University Health Network; Toronto ON Canada
- Toronto Health Economics and Technology Assessment (THETA) Collaborative; University of Toronto; Toronto ON Canada
| | - Angela M. Cheung
- Osteoporosis Program; University Health Network; Toronto ON Canada
- Institute of Health Policy, Management and Evaluation; University of Toronto; Toronto ON Canada
- Department of Medicine; University of Toronto; Toronto ON Canada
- Dalla Lana School of Public Health; University of Toronto; Toronto ON Canada
| | - Ahmed M. Bayoumi
- Institute of Health Policy, Management and Evaluation; University of Toronto; Toronto ON Canada
- Department of Medicine; University of Toronto; Toronto ON Canada
- Centre for Research on Inner City Health in the Li Ka Shing Knowledge Institute and Division of General Internal Medicine; St. Michael's Hospital; Toronto ON Canada
| | - George Tomlinson
- Institute of Health Policy, Management and Evaluation; University of Toronto; Toronto ON Canada
- Department of Medicine; University of Toronto; Toronto ON Canada
- Dalla Lana School of Public Health; University of Toronto; Toronto ON Canada
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Sahni S, Mangano KM, McLean RR, Hannan MT, Kiel DP. Dietary Approaches for Bone Health: Lessons from the Framingham Osteoporosis Study. Curr Osteoporos Rep 2015; 13:245-55. [PMID: 26045228 PMCID: PMC4928581 DOI: 10.1007/s11914-015-0272-1] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Osteoporosis is characterized by systemic impairment of bone mass, strength, and microarchitecture, resulting in increased risk for fragility fracture, disability, loss of independence, and even death. Adequate nutrition is important in achieving and maintaining optimal bone mass, as well as preventing this debilitating disease. It is widely accepted that adequate calcium and vitamin D intake are necessary for good bone health; however, nutritional benefits to bone go beyond these two nutrients. This review article will provide updated information on all nutrients and foods now understood to alter bone health. Specifically, this paper will focus on related research from the Framingham Osteoporosis Study, an ancillary study of the Framingham Heart Study, with data on more than 5000 adult men and women.
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Affiliation(s)
- Shivani Sahni
- Institute for Aging Research, Hebrew SeniorLife, Instructor, Beth Israel Deaconess Medical Center, Harvard Medical School, 1200 Center St., Boston, MA 02131, Phone: 617-971-5382, Fax: 617-971-5339,
| | - Kelsey M Mangano
- Institute for Aging Research, Hebrew SeniorLife, Beth Israel Deaconess Medical Center, Harvard Medical School, 1200 Center St., Boston, MA 02131, Phone: 617-971-5321, Fax: 617-971-5339,
| | - Robert R McLean
- Institute for Aging Research, Hebrew SeniorLife, Assistant Professor, Beth Israel Deaconess Medical Center, Harvard Medical School, 1200 Center St., Boston, MA 02131, Phone: 617-971-5376, Fax: 617-971-5339,
| | - Marian T Hannan
- Institute for Aging Research, Hebrew SeniorLife, Associate Professor, Beth Israel Deaconess Medical Center, Harvard Medical School, 1200 Center St., Boston, MA 02131, Phone: 617-971-5366, Fax: 617-971-5339,
| | - Douglas P Kiel
- Institute for Aging Research, Hebrew SeniorLife, Professor, Beth Israel Deaconess Medical Center, Harvard Medical School, 1200 Center St., Boston, MA 02131, Phone: 617-971-5373, Fax: 617-971-5339,
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Byberg L, Bellavia A, Orsini N, Wolk A, Michaëlsson K. Fruit and vegetable intake and risk of hip fracture: a cohort study of Swedish men and women. J Bone Miner Res 2015; 30:976-84. [PMID: 25294687 DOI: 10.1002/jbmr.2384] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 09/25/2014] [Accepted: 10/03/2014] [Indexed: 01/11/2023]
Abstract
Dietary guidelines recommend a daily intake of 5 servings of fruits and vegetables. Whether such intakes are associated with a lower risk of hip fracture is at present unclear. The aim of the present study was to investigate the dose-response association between habitual fruit and vegetable intake and hip fracture in a cohort study based on 40,644 men from the Cohort of Swedish Men (COSM) and 34,947 women from the Swedish Mammography Cohort (SMC) (total n = 75,591), free from cardiovascular disease and cancer, who answered lifestyle questionnaires in 1997 (age 45 to 83 years). Intake of fruits and vegetables (servings/day) was assessed by food frequency questionnaire and incident hip fractures were retrieved from the Swedish Patient Register (1998 to 2010). The mean follow-up time was 14.2 years. One-third of the participants reported an intake of fruits and vegetables of >5 servings/day, one-third reported >3 to ≤5 servings/day, 28% reported >1 to ≤3 servings/day, and 6% reported ≤1 serving/day. During 1,037,645 person-years we observed 3644 hip fractures (2266 or 62% in women). The dose-response association was found to be strongly nonlinear (p < 0.001). Men and women with zero consumption had 88% higher rate of hip fracture compared with those consuming 5 servings/day; adjusted hazard ratio (HR) was 1.88 (95% CI, 1.53 to 2.32). The rate was gradually lower with higher intakes; adjusted HR for 1 versus 5 servings/day was 1.35 (95% CI, 1.21 to 1.58). However, more than 5 servings/day did not confer additionally lower HRs (adjusted HR for 8 versus 5 servings/day was 0.96; 95% CI, 0.90 to 1.03). Similar results were observed when men and women were analyzed separately. We conclude that there is a dose-response association between fruit and vegetable intake and hip fracture such that an intake below the recommended five servings/day confers higher rates of hip fracture. Intakes above this recommendation do not seem to further lower the risk.
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Affiliation(s)
- Liisa Byberg
- Department of Surgical Sciences, Orthopedics, Uppsala University, Uppsala, Sweden
| | - Andrea Bellavia
- Institute of Environmental Medicine, Unit of Nutritional Epidemiology, Karolinska Institutet, Solna, Sweden
| | - Nicola Orsini
- Institute of Environmental Medicine, Unit of Nutritional Epidemiology, Karolinska Institutet, Solna, Sweden
| | - Alicja Wolk
- Institute of Environmental Medicine, Unit of Nutritional Epidemiology, Karolinska Institutet, Solna, Sweden
| | - Karl Michaëlsson
- Department of Surgical Sciences, Orthopedics, Uppsala University, Uppsala, Sweden
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Abrahamsen B, Brask-Lindemann D, Rubin KH, Schwarz P. A review of lifestyle, smoking and other modifiable risk factors for osteoporotic fractures. BONEKEY REPORTS 2014; 3:574. [PMID: 25228987 DOI: 10.1038/bonekey.2014.69] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Accepted: 07/08/2014] [Indexed: 12/25/2022]
Abstract
Although many strong risk factors for osteoporosis-such as family history, fracture history and age-are not modifiable, a number of important risk factors are potential targets for intervention. Thus, simple, non-pharmacological intervention in patients at increased risk of osteoporotic fractures could include reduction of excessive alcohol intake, smoking cessation, adequate nutrition, patient education, daily physical activity and a careful review of medications that could increase the risk of falls and fractures. There remains, however, an unmet need for high-quality intervention studies in most of these areas.
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Affiliation(s)
- Bo Abrahamsen
- Department of Medicine, Research Centre of Ageing and Osteoporosis, Glostrup Hospital , Copenhagen, Denmark ; Odense Patient Data Exploratory Network OPEN, Institute of Clinical Research, University of Southern Denmark , Odense, Denmark
| | | | - Katrine Hass Rubin
- Odense Patient Data Exploratory Network OPEN, Institute of Clinical Research, University of Southern Denmark , Odense, Denmark
| | - Peter Schwarz
- Department of Medicine, Research Centre of Ageing and Osteoporosis, Glostrup Hospital , Copenhagen, Denmark ; Faculty of Health Sciences, University of Copenhagen , Copenhagen, Denmark
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Soper RJ, Oguz C, Emery R, Pitsillides AA, Hodges SJ. Vitamin K catabolite inhibition of ovariectomy-induced bone loss: structure-activity relationship considerations. Mol Nutr Food Res 2014; 58:1658-66. [PMID: 25044634 DOI: 10.1002/mnfr.201400063] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 05/31/2014] [Accepted: 06/03/2014] [Indexed: 11/09/2022]
Abstract
SCOPE The potential benefit of vitamin K as a therapeutic in osteoporosis is controversial and the vitamin K regimen being used clinically (45 mg/day) employs doses that are many times higher than required to ensure maximal gamma-carboxylation of the vitamin K-dependent bone proteins. We therefore tested the hypothesis that vitamin K catabolites, 5-carbon (CAN5C) and 7-carbon carboxylic acid (CAN7C) aliphatic side-chain derivatives of the naphthoquinone moiety exert an osteotrophic role consistent with the treatment of osteoporosis. METHODS AND RESULTS Osteoblast-like MG63 cell cultures were challenged with lipopolysaccharide and the levels of interleukin-6, an osteoclastogenic cytokine, measured with and without catabolites; low concentrations of CAN7C significantly inhibited interleukin-6 release, but CAN5C did not. In models of bone loss induced by ovariectomy or sciatic neurectomy in C57BL/6 mice, we found that the rarer CAN7C catabolite markedly restricted ovariectomy-induced bone loss and possibly limited sciatic neurectomy-induced bone loss. CAN7C activity depends on a free carboxylic acid and its particular side-chain structure. CONCLUSION These in vivo data indicate for the first time that the clinical utility of vitamin K for osteoporosis may reside in an unusual catabolite.
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Affiliation(s)
- Robin J Soper
- Comparative Biomedical Sciences, Royal Veterinary College, London, UK
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Hamidi MS, Cheung AM. Vitamin K and musculoskeletal health in postmenopausal women. Mol Nutr Food Res 2014; 58:1647-57. [DOI: 10.1002/mnfr.201300950] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 04/23/2014] [Accepted: 05/01/2014] [Indexed: 12/19/2022]
Affiliation(s)
- Maryam S. Hamidi
- Osteoporosis and Women's Health Programs; University Health Network; Toronto Ontario Canada
| | - Angela M. Cheung
- Osteoporosis and Women's Health Programs; University Health Network; Toronto Ontario Canada
- Faculty of Medicine; University of Toronto; Toronto Ontario Canada
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45
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Urano A, Hotta M, Ohwada R, Araki M. Vitamin K deficiency evaluated by serum levels of undercarboxylated osteocalcin in patients with anorexia nervosa with bone loss. Clin Nutr 2014; 34:443-8. [PMID: 24909585 DOI: 10.1016/j.clnu.2014.04.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Revised: 04/10/2014] [Accepted: 04/23/2014] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Osteoporosis is a chief complication in patients with anorexia nervosa. Serum levels of undercarboxylated osteocalcin reflect serum and bone vitamin K deficiency. We investigated vitamin K status in patients with anorexia nervosa to help establish prevention and treatment recommendations for osteoporosis. METHODS Fifty-four female amenorrheic patients with anorexia nervosa (29 restricting-type and 25 binge eating/purging type) (age, 28.0 (26.7-31.1) (mean (95% CI)) years; body mass index, 14.8 (14.1-15.5) kg/m(2), duration of illness; 107.3 (88.5-126.0) months) and 15 age-matched healthy females were included in this study. We measured serum levels of undercarboxylated osteocalcin, biochemical and nutritional markers, and bone metabolic markers. Dietary vitamin K intake was evaluated by a questionnaire. RESULTS Lumbar bone mineral density and T-scores in patients with anorexia nervosa were 0.756 (0.721-0.790) g/cm(2) and -2.4 (-2.1 to -2.7), respectively, indicating bone loss. Serum levels of undercarboxylated osteocalcin in patients with anorexia nervosa were significantly higher than those of controls. The 17% of restricting type and 40% of binge eating/purging type anorexia nervosa patients, serum levels of undercarboxylated osteocalcin were higher than 4.5 ng/ml and were diagnosed with vitamin K deficiency. Serum levels of undercarboxylated osteocalcin correlated significantly and negatively with vitamin K intake in patients with anorexia nervosa. CONCLUSIONS Patients with anorexia nervosa had vitamin K deficiency. Since a supplement of vitamin K might be effective for maintaining bone quality, we provide recommendations regarding vitamin K intake for prevention and treatment of osteoporosis in patients with AN.
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Affiliation(s)
- Ayako Urano
- Division of Endocrinology and Metabolism, Saitama Sekishinkai Hospital, Saitama, Japan
| | - Mari Hotta
- Health Service Center, National Graduate Institute For Policy Studies, Tokyo, Japan; Institute of Women's Health, Tokyo Women's Medical University, Tokyo, Japan.
| | - Rina Ohwada
- Division of Endocrinology and Metabolism, Saitama Sekishinkai Hospital, Saitama, Japan
| | - Mariko Araki
- Department of Internal Medicine, Nagai Hitachinomori Hospital, Ibaraki, Japan
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Abstract
Vitamin K is one of several nutrients that have been linked with bone health. In particular, there is an emerging literature regarding the questionable efficacy of vitamin K supplementation in reducing age-related bone loss. This review aims to summarize the role of vitamin K in bone health in older adults and discuss the clinical implications from a select few human studies. The evidence for vitamin K supplementation in older adults is mixed. Although the observational studies have shown linkages between vitamin K intake and lower risk of fractures in this population, the current evidence from randomized controlled trials is not strongly supportive of vitamin K supplementation in older adults for the intent of improving bone health.
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Affiliation(s)
- Krupa Shah
- a Division of Geriatrics and Aging , University of Rochester School of Medicine and Dentistry , Rochester , New York , USA
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