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Vitamin K Research Studies
Research Guide
What is Vitamin K Research Studies?
Vitamin K Research Studies are investigations into the physiological roles of Vitamin K in bone health, vascular calcification prevention, fracture risk reduction, coagulation factors, matrix Gla protein function, dietary intake patterns, supplementation effects, and associations with chronic diseases.
The field encompasses 23,279 published works examining Vitamin K's contributions to health outcomes such as osteoporosis prevention and regulation of vascular calcification. "Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc" by Institute of Medicine (2001) establishes recommended intake levels for Vitamin K alongside other micronutrients, cited 3023 times. Research addresses phylloquinone and menaquinone forms in relation to coagulation and chronic disease management.
Topic Hierarchy
Research Sub-Topics
Vitamin K and Bone Mineral Density
This sub-topic investigates vitamin K1 (phylloquinone) and K2 (menaquinones) effects on osteocalcin carboxylation and bone density in postmenopausal women via RCTs and cohort studies. Researchers measure BMD changes with supplementation doses.
Vitamin K-Dependent Carboxylation of Matrix Gla Protein
Studies elucidate vitamin K's role in MGP carboxylation to inhibit vascular calcification, analyzing dp-ucMGP levels in CKD and CVD patients. Intervention trials test high-dose K2 supplementation impacts.
Dietary Vitamin K Intake and Fracture Risk
Epidemiological research correlates phylloquinone/menaquinone intake from greens and fermented foods with hip/vertebral fracture incidence in large cohorts. Meta-analyses quantify dose-response relationships.
Vitamin K Antagonists and Bone Health
This area examines warfarin/ coumadin effects on undercarboxylated osteocalcin, bone turnover, and fracture rates in anticoagulated patients. Studies compare VKA alternatives like DOACs on skeletal outcomes.
Vitamin K Supplementation in Chronic Diseases
Researchers trial menaquinone-7 supplementation in diabetes, CKD, and CVD, assessing inflammation, insulin sensitivity, and calcification progression via biomarkers. Personalized dosing based on genotype is explored.
Why It Matters
Vitamin K research informs clinical practices in anticoagulation therapy and bone health management. "Pharmacology and Management of the Vitamin K Antagonists" by Ansell et al. (2008) details the use of Vitamin K antagonists like warfarin in preventing thromboembolic events, with 2089 citations, guiding dosing and monitoring to balance efficacy and bleeding risks. "Dabigatran versus Warfarin in Patients with Atrial Fibrillation" by Connolly et al. (2009) compared a Vitamin K antagonist (warfarin) to a direct thrombin inhibitor, showing dabigatran at 110 mg reduced major hemorrhage rates while maintaining stroke prevention similar to warfarin in 18,113 atrial fibrillation patients, influencing guideline updates for over 11055 citations.
Reading Guide
Where to Start
"Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc" by Institute of Medicine (2001), as it provides foundational intake recommendations essential for understanding Vitamin K's baseline nutritional requirements before clinical applications.
Key Papers Explained
"Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc" by Institute of Medicine (2001) sets nutritional standards, which "Pharmacology and Management of the Vitamin K Antagonists" by Ansell et al. (2008) builds upon for therapeutic inhibition in anticoagulation; this connects to "Dabigatran versus Warfarin in Patients with Atrial Fibrillation" by Connolly et al. (2009), evaluating warfarin alternatives in atrial fibrillation trials.
Paper Timeline
Most-cited paper highlighted in red. Papers ordered chronologically.
Advanced Directions
Current research emphasizes Vitamin K's roles in bone health and vascular calcification, with the 23,279 works focusing on supplementation trials and chronic disease links; no recent preprints or news in the last 12 months indicate steady-state exploration of dietary intake and matrix Gla protein mechanisms.
Papers at a Glance
Frequently Asked Questions
What role does Vitamin K play in coagulation?
Vitamin K is essential for the synthesis of coagulation factors II, VII, IX, and X through gamma-carboxylation. "Pharmacology and Management of the Vitamin K Antagonists" by Ansell et al. (2008) explains how antagonists like warfarin inhibit this process to prevent thrombosis. This mechanism underpins therapeutic management of conditions like atrial fibrillation.
How do Vitamin K antagonists compare to alternatives in atrial fibrillation?
In patients with atrial fibrillation, dabigatran at 110 mg showed stroke and embolism rates similar to warfarin but with lower major hemorrhage. Connolly et al. (2009) in "Dabigatran versus Warfarin in Patients with Atrial Fibrillation" reported this across doses, with 11055 citations. The 150 mg dose further reduced stroke risk.
What are the dietary reference intakes for Vitamin K?
The Institute of Medicine (2001) in "Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc" provides adequate intake levels for Vitamin K based on age and life stage. These values support bone health and coagulation functions. The report has 3023 citations.
What health outcomes are linked to Vitamin K in research?
Studies link Vitamin K to bone health, vascular calcification regulation, fracture prevention, and chronic disease associations via matrix Gla protein. Keywords include menaquinone, phylloquinone, osteoporosis, and dietary intake. The field totals 23,279 works.
How is Vitamin K involved in vascular calcification?
Vitamin K activates matrix Gla protein, which inhibits vascular calcification. Research explores its role in preventing calcification in chronic diseases. This connects to dietary intake and supplementation studies in the 23,279-paper cluster.
Open Research Questions
- ? How does optimal Vitamin K intake influence fracture risk in osteoporosis patients?
- ? What are the long-term effects of Vitamin K supplementation on vascular calcification progression?
- ? How do phylloquinone and menaquinone forms differentially impact matrix Gla protein carboxylation in chronic disease states?
- ? What dietary patterns maximize Vitamin K bioavailability for coagulation factor synthesis?
- ? To what extent does Vitamin K status correlate with outcomes in patients on antagonists like warfarin?
Recent Trends
The field maintains 23,279 works with no specified 5-year growth rate; highly cited papers like Connolly et al. with 11055 citations and Institute of Medicine (2001) with 3023 citations dominate, reflecting sustained focus on Vitamin K in anticoagulation and nutrition without new preprints or news in the last 12 months.
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