Plain vitamin D or active vitamin D in the treatment of osteoporosis: where do we stand today?
Review Arch Osteoporos, . 2020 Nov 14;15(1):182. doi: 10.1007/s11657-020-00842-0.
Johann Diederich Ringe 1
Overview Osteoporosis and vitamin D contains the following summary
- FACT: Bones need Calcium (this has been known for a very long time)
- FACT: Vitamin D improves Calcium bioavailability (3X ?)
- FACT: Should not take > 750 mg of Calcium if taking lots of vitamin D (Calcium becomes too bio-available)
- FACT: Adding vitamin D via Sun, UV, or supplements increased vitamin D in the blood
- FACT: Vitamin D supplements are very low cost
- FACT: Many trials, studies. reviews, and meta-analysis agree: adding vitamin D reduces osteoporosis
- FACT: Toxic level of vitamin D is about 4X higher than the amount needed to reduce osteoporosis
- FACT: Co-factors help build bones.
- FACT: Vitamin D Receptor can restrict Vitamin D from getting to many tissues, such as bones
- It appears that to TREAT Osteoporosis:
- Calcium OR vitamin D is ok
- Calcium + vitamin D is good
- Calcium + vitamin D + other co-factors is great
- Low-cost Vitamin D Receptor activators sometimes may be helpful
- CONCLUSION: To PREVENT many diseases, including Osteoporosis, as well as TREAT Osteoporosis
- Category Osteoporosis has
- Category Bone Health has
Note: Osteoporosis causes bones to become fragile and prone to fracture
Osteoarthritis is a disease where damage occurs to the joints at the end of the bones
Osteoporosis category includes the following
207 items in category - see also Overview Osteoporosis and vitamin D
- Overview Fractures and vitamin D
- Bone - Health
- VitaminDWiki pages with BONE MINERAL DENSITY or BMD in title 29+ pages
- Search VitaminDWiki for OSTEOPENIA 1740 items as of July 2020
12 articles are in both Osteroporosis and Vitamin D Receptor categories 9 articles are in both Osteroporosis and Meta-analysis categories
- 20X increase in vitamin D sold and 36 percent decrease in osteoporosis business in Australia – Nov 2013
Osteoporosis is a major cause of morbidity and mortality worldwide and its prevention in order to avert fractures was considered of great importance in maintaining well-being and independence among the elderly. Strategies for osteoporosis prevention are well delineated, but research shows that the treatment options offered today could still be improved. The role of plain vitamin D (cholecalciferol) in bone health and the prevention of osteoporosis are well documented; however, as a treatment for osteoporosis, either with or without calcium, it has been shown to be ineffective.
This is due in part to the strong negative feedback mechanisms in place in vitamin D-replete patients. However, other factors linked directly to ageing such as oestrogen depletion, reduced kidney or liver function may also be involved in reducing the body's capability to activate plain vitamin efficiently. This is why active vitamin D analogues such as alfacalcidol, 1-α-(OH)D3, are of clinical interest. Alfacalcidol requires only one hydroxylation reaction to become active 1,25-(OH)2-vitamin D3, and the 25-hydroxylase catalyzing this reaction is found in the liver and also interestingly in osteoblasts suggesting a local effect.
Registered for use in postmenopausal osteoporosis, in most countries worldwide, alfacalcidol has also shown efficacy in glucocorticoid-induced and male osteoporosis. The present review provides compelling evidence for the efficacy of this compound in the treatment of osteoporosis and prevention of fractures both in monotherapy and when combined with other osteoporotic drugs where additive effects are clear. The safety profile of alfacalcidol is shown to be highly acceptable and it is considered less likely to induce hypercalcaemia than another more widely used analogue, calcitriol. Therefore, it remains unclear as to why alfacalcidol is not more widely used in clinical practice.
- Category Bone Health has