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vit d level influences expression of trl7
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vit d level influences expression of trl7

trl 7 is what we are trying activate by imiquimod and gilead gs...to clear hbv....

http://www.naturalnews.com/036168_vitamin_D_flu_infections.html

The research team found that the level of circulating vitamin D in the blood affected the toll-like receptor (TLR) expression measured on white blood cell lymphocytes and monocytes. Specifically, they found that the TRL most affected by a vitamin D insufficiency is TLR7, which regulates the immune response against viruses. In many geographic regions, limited sun exposure during darker winter months is closely associated with vitamin D deficiency and increased risk for colds and influenza outbreaks.
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Most health-minded adults will want to supplement with an oil-based form of Vitamin D3 (experts recommend starting with 5000 IU per day), and test twice a year using the 25(OH)D blood test to confirm optimal levels above 50 ng/mL to achieve optimal protection against colds, flu, and many viral infection strains.

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http://www.jleukbio.org/content/91/5/829

Age and low levels of circulating vitamin D are associated with impaired innate immune function
Lorena Alvarez-Rodriguez*, Marcos Lopez-Hoyos†, Maite Garcia-Unzueta‡, Jose Antonio Amado§‖, Pedro Muñoz Cacho‖ and Victor Manuel Martinez-Taboada*,‖,1
+ Author Affiliations

Divisions of *Rheumatology,
†Immunology,
‡Biochemistry, and
§Endocrinology, Hospital Universitario Marqués de Valdecilla–Instituto de Formación e Investigación Marqués de Valdecilla, Santander, Spain; and
‖Gerencia Atencion Primaria, Servicio Cantabro de Salud, and Facultad de Medicina, Universidad de Santander, Spain
↵1.Correspondence: Rheumatology Division, Hospital Universitario “Marqués de Valdecilla”, Facultad de Medicina, Universidad de Cantabria, Avda. Valdecilla s/n, 39008, Santander, Spain. E-mail: ***@****
Abstract

This study investigated in vivo the influence of age and vitamin D status on innate immune function in HC. Serum 25OHD was measured in 71 HC. TLR expression on various subpopulations of PBMCs, as well as TLR function by stimulating PBMCs with specific ligands, was assessed by flow cytometry. Circulating cathelicidin levels were determined by ELISA. Serum 25OHD levels decreased with age, and there was a significant inverse correlation between 25OHD levels and age. There was a negative correlation between serum 25OHD levels and MFI expression of TLR7 on B cells, T cells, and monocytes. TLR7 function, addressed by in vitro stimulation with a specific agonist, was significantly correlated with serum 25OHD levels, and this was especially a result of the results in HC older than 60 years. MFI expression of TLR5 on T cells and TLR2 on monocytes was also negatively correlated with serum 25OHD levels. TLR1 (monocytes) and TLR2 (monocytes) expression was positively correlated with age. Furthermore, TLR4 and TLR8 function was negatively correlated with age. Circulating cathelicidin levels decreased with age and were positively correlated with 25OHD levels. Aging is accompanied by changes in expression and function of several TLRs. Serum 25OHD levels decrease with age and are also associated with a change in expression and defective function of certain TLRs, especially those involved in viral response.
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