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home:pathogenesis:vitamind:cancer [02.13.2019] – [Read more] sallieqhome:pathogenesis:vitamind:cancer [02.01.2020] – [Patient reports] sallieq
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   * **[[home:pathogenesis:vitamind:latitude|Latitude studies]]** - The "latitude studies" are observational, as opposed to interventional, studies, which use ambient solar UV radiation as a proxy for latitude and vitamin D status. For these studies, researchers compare rates of certain major cancers - most notably breast, colorectal and prostate cancer - to rates of sunlight exposure. This group of research has the liability of being wildly inconsistent. The choice to publish research on a specific latitude gradient may be a better proxy for a researcher's bias.   * **[[home:pathogenesis:vitamind:latitude|Latitude studies]]** - The "latitude studies" are observational, as opposed to interventional, studies, which use ambient solar UV radiation as a proxy for latitude and vitamin D status. For these studies, researchers compare rates of certain major cancers - most notably breast, colorectal and prostate cancer - to rates of sunlight exposure. This group of research has the liability of being wildly inconsistent. The choice to publish research on a specific latitude gradient may be a better proxy for a researcher's bias.
   * **Interventional studies** - While some randomized controlled trials have suggested that consuming vitamin D reduces rates of cancer, larger and more carefully controlled studies show no such effect.    * **Interventional studies** - While some randomized controlled trials have suggested that consuming vitamin D reduces rates of cancer, larger and more carefully controlled studies show no such effect. 
-  * **Studies of vitamin D status** - Many of the studies examining the relationship between vitamin D status and incidence of cancer argue that low levels of 25-D contribute to cancer. This conclusion has been invalidated by larger well-controlled studies. Although the immune system works to downregulate 25-D (25-hydroxyvitamin D) in inflammatory diseases such as cancer, very high levels of 25-D are a clear indication of regular supplementation. These studies suggest that consuming large amounts of vitamin D predispose a person to increased incidence of cancer.+  * **Studies of vitamin D status** - Many of the studies examining the relationship between vitamin D status and incidence of cancer argue that low levels of 25-D contribute to cancer. This conclusion has been invalidated by larger well-controlled studies. Although the immune system works to downregulate 25-D (25-hydroxyvitamin D) in inflammatory diseases such as cancer, very high levels of 25-D are a clear indication of regular supplementation. Studies suggest that consuming large amounts of vitamin D predispose a person to increased incidence of cancer.
   * **Observational studies** – Some case control studies have found that vitamin D intake seems to increase incidence of certain types of cancer.   * **Observational studies** – Some case control studies have found that vitamin D intake seems to increase incidence of certain types of cancer.
  
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 A 2010 study showed that multivitamin use may be correlated with increased risk of breast cancer.(({{pubmed>long:20335555}})) In 1997, 35,329 Swedish cancer-free women completed a self-administered questionnaire that solicited information on multivitamin use as well as other breast cancer risk factors. During a mean follow-up of 9.5 years, 974 women were diagnosed with incident breast cancer.  A 2010 study showed that multivitamin use may be correlated with increased risk of breast cancer.(({{pubmed>long:20335555}})) In 1997, 35,329 Swedish cancer-free women completed a self-administered questionnaire that solicited information on multivitamin use as well as other breast cancer risk factors. During a mean follow-up of 9.5 years, 974 women were diagnosed with incident breast cancer. 
  
 +===== Patient reports =====
  
 +<blockquote>I have avoided the sun since severe sunburn at age 10. Cancer was found in my left breast some time before MP was available. It was controlled by surgery followed by radiotherapy and Tamoxifen.
 +
 +I first had lumpectomy, followed by complete breast removal and removal of some lymph nodes, because the cancer was beginning to spread into the lymph system.
 +
 +While on MP, a "pre-cancerous" patch on my left arm changed and I was referred to a dermatologist for surgery, but he preferred to watch and wait as the possible cancer was on an arm with lymphoedema.
 +
 +I am glad he took pictures, as the possible cancer continued to change and then disappeared entirely.
 +
 +  Good old MP, when followed as precisely as I was doing at that time.
 +
 +
 +//Sallie Q//
 +</blockquote>
 ===== Read more ===== ===== Read more =====
  
home/pathogenesis/vitamind/cancer.txt · Last modified: 09.14.2022 by 127.0.0.1
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