tetano
Editor, Senior Moderator
Hum Vaccin Immunother. 2015 Nov 17:0. [Epub ahead of print]
[h=1]Vitamin D, Leptin and Impact on Immune Response to Seasonal Influenza A/H1N1 Vaccine in Older Persons.[/h] Sadarangani SP[SUP]1,[/SUP][SUP]2[/SUP], Ovsyannikova IG[SUP]1[/SUP], Goergen K[SUP]3[/SUP], Grill DE[SUP]3[/SUP], Poland GA[SUP]1[/SUP].
[h=3]Author information[/h]
[h=3]Abstract[/h] [h=4]BACKGROUND:[/h] Influenza-related complications are highest in the elderly. Vaccine efficacy is lower due to immunosenescence. Vitamin D's immunomodulatory role was studied in the context of vaccine response.
[h=4]METHODS:[/h] We evaluated the effect of baseline 25-(OH) D on vaccine-induced immunological response in a cohort of 159 healthy subjects ages 50-74 in Rochester, MN, who received one dose of seasonal trivalent 2010-2011 influenza vaccine, containing A/California/H1N1- like virus. We examined correlations between 25-(OH) D, leptin, and leptin-related gene SNPs to understand the role of leptin and vitamin D's effects.
[h=4]RESULTS:[/h] The median (IQR) baseline for total 25-(OH) D was 44.4 ng/mL (36.6-52.2 ng/mL). No correlation was observed with age. No correlation between 25-(OH) D levels and humoral immune outcomes existed at any timepoint. There was a weak positive correlation between 25-(OH) D levels and change (Day 75-Day 0) in influenza-specific granzyme-B response (r=0.16, p=0.04). We found significant associations between three SNPs in the PPARG gene and 25-(OH) D levels (rs1151996, p=0.01; rs1175540, p= 0.02; rs1175544, p=0.03).
[h=4]CONCLUSION:[/h] Several SNPs in the PPARG gene were significantly associated with baseline 25-(OH) D levels. Understanding the functional and mechanistic relationships between vitamin D and influenza vaccine-induced immunity could assist in directing new influenza vaccine design.
[h=4]KEYWORDS:[/h] H1N1 subtype; Influenza A Virus; Influenza Vaccines; Leptin; Receptors; Vitamin D; Vitamin D Deficiency
PMID: 26575832 [PubMed - as supplied by publisher]
[h=1]Vitamin D, Leptin and Impact on Immune Response to Seasonal Influenza A/H1N1 Vaccine in Older Persons.[/h] Sadarangani SP[SUP]1,[/SUP][SUP]2[/SUP], Ovsyannikova IG[SUP]1[/SUP], Goergen K[SUP]3[/SUP], Grill DE[SUP]3[/SUP], Poland GA[SUP]1[/SUP].
[h=3]Author information[/h]
[h=3]Abstract[/h] [h=4]BACKGROUND:[/h] Influenza-related complications are highest in the elderly. Vaccine efficacy is lower due to immunosenescence. Vitamin D's immunomodulatory role was studied in the context of vaccine response.
[h=4]METHODS:[/h] We evaluated the effect of baseline 25-(OH) D on vaccine-induced immunological response in a cohort of 159 healthy subjects ages 50-74 in Rochester, MN, who received one dose of seasonal trivalent 2010-2011 influenza vaccine, containing A/California/H1N1- like virus. We examined correlations between 25-(OH) D, leptin, and leptin-related gene SNPs to understand the role of leptin and vitamin D's effects.
[h=4]RESULTS:[/h] The median (IQR) baseline for total 25-(OH) D was 44.4 ng/mL (36.6-52.2 ng/mL). No correlation was observed with age. No correlation between 25-(OH) D levels and humoral immune outcomes existed at any timepoint. There was a weak positive correlation between 25-(OH) D levels and change (Day 75-Day 0) in influenza-specific granzyme-B response (r=0.16, p=0.04). We found significant associations between three SNPs in the PPARG gene and 25-(OH) D levels (rs1151996, p=0.01; rs1175540, p= 0.02; rs1175544, p=0.03).
[h=4]CONCLUSION:[/h] Several SNPs in the PPARG gene were significantly associated with baseline 25-(OH) D levels. Understanding the functional and mechanistic relationships between vitamin D and influenza vaccine-induced immunity could assist in directing new influenza vaccine design.
[h=4]KEYWORDS:[/h] H1N1 subtype; Influenza A Virus; Influenza Vaccines; Leptin; Receptors; Vitamin D; Vitamin D Deficiency
PMID: 26575832 [PubMed - as supplied by publisher]