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Complement system (part of innate immunity) needs Vitamin D (50 ng is good) – Sept 2022


Vitamin D deficiency leads to the abnormal activation of the complement system

Immunol Res. 2022 Sep 30. doi: 10.1007/s12026-022-09324-6
Huan Li # 1 , Xiaomin Xie # 2 , Guirong Bai 1 , Dan Qiang 1 , Li Zhang 1 , Huili Liu 1 , Yanting He 1 , Yanpan Tang 1 , Ling Li 1

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Vitamin D deficiency can damage the human immune system, and the complement system is a key component of the immune system. This study aimed to elucidate the mechanism by which vitamin D affects the immune system by analyzing the changes in the protein expression of the complement system under different vitamin D levels. We selected 40 participants and divided them into three groups according to their serum levels of 25-hydroxyvitamin D (25(OH)VD):

  • group A, 25(OH)VD ≥ 40 ng/mL;
  • group B, 30 ng/mL ≤ 25(OH)VD < 40 ng/mL; and
  • group C, 25(OH)VD < 30 ng/mL.

Serum samples were subjected to biochemical analysis, followed by proteomic analysis using high-throughput untargeted proteomic techniques. Vitamin D deficiency increased the levels of fasting blood sugar, fasting serum insulin, and homeostasis model assessment (HOMA) of insulin resistance and decreased the secretion of HOMA of β-cell function, which led to insulin resistance and glucose metabolism disorder. Moreover, vitamin D deficiency resulted in the abnormal expression of 56 differential proteins, among which the expression levels of complement factor B, complement component C9, inducible co-stimulator ligand, and peptidase inhibitor 16 significantly changed with the decrease in vitamin D content. Functional enrichment analysis of these differential proteins showed that they were mainly concentrated in functions and pathways related to insulin secretion and inflammation.

In conclusion, vitamin D deficiency not only contributes to insulin resistance and glucose metabolism disorder but also causes abnormal protein expression, resulting in the abnormal activation of the complement system. This study provides a novel theoretical basis for further studies on the relationship between vitamin D and the immune system.

Clipped from PDF
In conclusion, the main findings of this study were as follows:

  • (1) vitamin D deficiency caused insulin resistance and glucose metabolism disorder,
  • (2) vitamin D deficiency led to the abnormal expression of complement proteins and the activation of the complement system, and
  • (3) functional enrichment analysis revealed that dysregulated complement proteins were involved in cellular functions related to insulin `secretion and glucose metabolism regulation.

This study provides a novel reference for further studies on the regulatory effect of vitamin D on the immune system.
 Download the PDF from VitaminDWiki


Complement system Wikipedia Sept 2022

The complement system, also known as complement cascade, is a part of the immune system that enhances (complements) the ability of antibodies and phagocytic cells to clear microbes and damaged cells from an organism, promote inflammation, and attack the pathogen's cell membrane. It is part of the innate immune system,[1] which is not adaptable and does not change during an individual's lifetime.
The complement system can, however, be recruited and brought into action by antibodies generated by the adaptive immune system.
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VitaminDWiki - Immunity category contains

262 items in Immunity category

    see also

Virus category listing has 1336 items along with related searches

Overview Influenza and vitamin D
Vitamin D helps both the innate and adaptive immune systems fight COVID-19 – Jan 2022
Vitamin D aids the clearing out of old cells (autophagy) – many studies
600,000 IU of Vitamin D (total) allowed previously weak immune systems to fight off a virus antigen - Nov 2020
Search for treg OR "t-cell" in VitaminDWiki 1440 items as of Jan 2020
141 VitaminDWiki pages contained "infection" in title (June 2021)
Search VitaminDWik for BACTERIA in title 25 items as of Aug 2019
Vitamin D and the Immune System – chapter Aug 2019
7X less risk of influenza if Vitamin D levels higher than 30 ng – Oct 2017
Common cold prevented and treated by Vitamin D, Vitamin C, Zinc, and Echinacea – review April 2018
Vitamin D improves T Cell immunity – RCT Feb 2016
Immune system - great 11-minute animated video - Aug 2021
   Only the brain is more complex, nothing about Vitamin D

18 titles in VitaminDWiki contained INNATE or ADAPTIVE as of Jan 2023
Increasing publications on vitamin D and Infection
Image

47 studies are in both Immunity and Virus categories

VitaminDWiki pages with INNATE in title (14 as of Sept 2022)

This list is automatically updated

Items found: 14

VitaminDWiki - Is 50 ng of vitamin D too high, just right, or not enough


VitaminDWiki pages with 50 ng in title (60 as of Sept 2022)

This list is automatically updated

Items found: 80
Title Modified
Is 50 ng of Vitamin D enough to fight COVID - TrialSiteNews - Jan 2024 31 Jan, 2024
50 ng of Vitamin D - 100 hours of noon sunbathing OR 3 dollars of Vit D 05 Aug, 2023
Cognition improved in 5 ways after Vitamin D increased to 32 ng (50,000 weekly) – June 2023 03 Jul, 2023
50 ng level of Vitamin D proven to fight many diseases - Whittle May 2023 17 May, 2023
4X reduction in prediabetes progressing to T2D if more than 50 ng of vitamin D – RCT March 2023 01 May, 2023
Fight infections such as COVID with 50 ng of Vitamin D – Sunil Dec 2022 19 Dec, 2022
Mortality reduced by 35 percent if everyone had 50 ng of vitamin D - Grant Oct 2021 09 Dec, 2022
Kidney Inflammation not reduced by 30 ng Vitamin D (many health problems need 50 ng) – Nov 2022 09 Nov, 2022
Complement system (part of innate immunity) needs Vitamin D (50 ng is good) – Sept 2022 01 Oct, 2022
10,000 IU Vitamin D raised basketball player levels (more than 50 ng need to improve performance) – June 2022 01 Aug, 2022
Suggested dosing to get 50 ng of Vitamin D (if healthy) - July 2022 21 Jul, 2022
COVID probably fought by Vitamin D, might need 50 ng - Dr. Patrick Nov 8, 2021 21 Jul, 2022
Is 50 ng of vitamin D too high, just right, or not enough 14 May, 2022
COVID-19 mortality extrapolates to zero at 50 ng of vitamin D – 18th Meta-analysis Sept 2021 18 Mar, 2022
Optimal Vitamin D level: 50-90 ng - Dr. Vasquez 18 Mar, 2022
Psoriasis reduced for those getting Vitamin D levels above 50 ng – RCT Feb 2018 11 Mar, 2022
See all vitaminDWiki pages with 50...150 AND ng in title 28 Feb, 2022
Prevent half of T1 Diabetes with vitamin D levels of 50 ng – Dec 2012 04 Jan, 2022
Texas town wants employees above 50 ng of Vitamin D to fight COVID-19 - Dec 24, 2020 26 Nov, 2021
Discussion of COVID and 50 ng of Vitamin D (video and transcript)– Dr. Campbell Nov 17, 2021 19 Nov, 2021
Vitamin D might a risk factor of insulin resistance, diabetes, obesity, etc. (50 ng) – Oct 2021 26 Oct, 2021
Vitamin D and COVID, review of evidence, loading dose if less than 50 ng - Masterjohn Sept 2021 05 Sep, 2021
Less muscle inflammation after exercise if high level of Vitamin D (50 ng) -July 2021 08 Jul, 2021
T-cells need at least 40-50 ng of Vitamin D to fight COVID-19 - June 2021 01 Jun, 2021
Little risk of infection after surgery if have more than 50 ng of vitamin D - 2014 30 May, 2021
50,000 IU of Vitamin D once every 2 weeks achieved 40 ng in 3 months – RCT March 2021 24 Apr, 2021
Jaw joint (TMJ) needs 30-50 ng of Vitamin D and a good VDR – April 2021 14 Apr, 2021
More than 30 ng of vitamin D is sometimes needed (Kidney needs 50 ng) – March 2019 31 Mar, 2021
To protect against COVID-19, how much vitamin D – 20 to 50 ng – March 19, 2021 23 Mar, 2021
5000 IU of vitamin D in daily bread resulted in 50 ng and improved quality of life– May 2014 20 Mar, 2021
How much vitamin D is needed ( perhaps 50 ng for infections) 08 Mar, 2021
Influenza prevented by 40 ng levels or treated with vitamin D hammer (50,000 IU) – June 2015 26 Dec, 2020
Saudi study defines normal Vitamin D level to be 50 to 70 ng (diabetes, etc.) - June 2020 12 Dec, 2020
Diabetes 50X less likely if 30 ng of Vitamin D and intense exercise – April 2018 11 Nov, 2020
Only 1 NCAA basketball player getting 10,000 IU vitamin D daily achieved 50 ng goal – Jan 2020 01 Sep, 2020
Critically Ill or injured patients need 30-50 ng of Vitamin D – Matthews March 2020 18 Mar, 2020
Low Vitamin D symptoms, need 50-80 ng, he takes 5,000 IU – Matthews interview Dec 2019 29 Dec, 2019
NCAA trainers are getting on board the Vitamin D train (40-50 ng)– Nov 2019 16 Nov, 2019
Biology of Vitamin D – 30ng min., 50ng preferred, 1000X lower cost than health problem – Feb 2019 02 Mar, 2019
Diabetes 5X less likely if more than 50 ng of Vitamin D – April 2018 23 Jan, 2019
Vitamin D is needed for human fertility – goal is 50 ng – Sept 2018 22 Aug, 2018
Colorectal cancer 60 percent less likely if have more than 50 ng of vitamin D (vs 5 ng) – meta-analysis April 2017 09 Aug, 2018
Korea proposes vitamin D of 20 ng, but notes 20ng increases osteo by 50 percent – Oct 2012 03 Jul, 2018
Half of Tianjin China had less than sufficient vitamin D (IoM of 20-50 ng) - June 2018 04 Jun, 2018
Inflammatory Bowel Disease and Vitamin D review (needs 40-50 ng) – Feb 2018 26 Feb, 2018
Hypertension not controlled by 26 ng of Vitamin D (50,000 IU bi-weekly A-A) – RCT Nov 2017 18 Nov, 2017
Hypothyroidism risk reduced 32 percent in those getting vitamin D levels above 50 ng – Oct 2017 27 Oct, 2017
Chinese women in tropics needed 50,000 IU of Vitamin D monthly to keep above 30 ng – RCT May 2017 14 Jul, 2017
All myopic children had less than 50 ng of vitamin D – March 2016 06 Apr, 2017
A group of 6,000 people have vitamin D levels higher than 50 ng – GrassrootsHealth 29 Jun, 2016
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  • 1 (current)
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Web

Complement system part I – molecular mechanisms of activation and regulation - 2015 PDF
Complement system part II - 2015 PDF
   No mention of vitamin in either one


PDF References

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