PMID- 29751492 OWN - NLM STAT- MEDLINE DCOM- 20181221 LR - 20240326 IS - 1660-4601 (Electronic) IS - 1661-7827 (Print) IS - 1660-4601 (Linking) VI - 15 IP - 5 DP - 2018 May 3 TI - Aluminum Adjuvant-Containing Vaccines in the Context of the Hygiene Hypothesis: A Risk Factor for Eosinophilia and Allergy in a Genetically Susceptible Subpopulation? LID - 10.3390/ijerph15050901 [doi] LID - 901 AB - There are similarities between the immune response following immunization with aluminum adjuvants and the immune response elicited by some helminthic parasites, including stimulation of immunoglobulin E (IgE) and eosinophilia. Immunization with aluminum adjuvants, as with helminth infection, induces a Th2 type cell mediated immune response, including eosinophilia, but does not induce an environment conducive to the induction of regulatory mechanisms. Helminths play a role in what is known as the hygiene hypothesis, which proposes that decreased exposure to microbes during a critical time in early life has resulted in the increased prevalence and morbidity of asthma and atopic disorders over the past few decades, especially in Western countries. In addition, gut and lung microbiome composition and their interaction with the immune system plays an important role in a properly regulated immune system. Disturbances in microbiome composition are a risk factor for asthma and allergies. We propose that immunization with aluminum adjuvants in general is not favorable for induction of regulatory mechanisms and, in the context of the hygiene hypothesis and microbiome theory, can be viewed as an amplifying factor and significant contributing risk factor for allergic diseases, especially in a genetically susceptible subpopulation. FAU - Terhune, Todd D AU - Terhune TD AD - College of Pharmacy, Department of Pharmaceutical Sciences, Nova Southeastern University, 1382 Terry Bldg, 3200 South University Drive, Fort Lauderdale, FL 33328, USA. toddterhune@comcast.net. FAU - Deth, Richard C AU - Deth RC AD - College of Pharmacy, Department of Pharmaceutical Sciences, Nova Southeastern University, 1382 Terry Bldg, 3200 South University Drive, Fort Lauderdale, FL 33328, USA. rdeth@nova.edu. LA - eng PT - Journal Article PT - Review DEP - 20180503 PL - Switzerland TA - Int J Environ Res Public Health JT - International journal of environmental research and public health JID - 101238455 RN - 0 (Adjuvants, Immunologic) RN - 0 (Vaccines) RN - CPD4NFA903 (Aluminum) SB - IM MH - Adjuvants, Immunologic/*administration & dosage MH - Aluminum/*administration & dosage MH - Animals MH - *Eosinophilia/genetics/immunology MH - Genetic Predisposition to Disease MH - Helminthiasis/immunology MH - Humans MH - Hygiene Hypothesis MH - *Hypersensitivity/genetics/immunology MH - Immunization MH - Microbiota MH - Risk Factors MH - Vaccines/*administration & dosage PMC - PMC5981940 OTO - NOTNLM OT - IgE OT - allergy OT - aluminum OT - asthma OT - eosinophil OT - hygiene hypothesis OT - vaccination COIS- The authors declare no conflict of interest. EDAT- 2018/05/13 06:00 MHDA- 2018/12/24 06:00 PMCR- 2018/05/01 CRDT- 2018/05/13 06:00 PHST- 2018/03/28 00:00 [received] PHST- 2018/04/19 00:00 [revised] PHST- 2018/04/29 00:00 [accepted] PHST- 2018/05/13 06:00 [entrez] PHST- 2018/05/13 06:00 [pubmed] PHST- 2018/12/24 06:00 [medline] PHST- 2018/05/01 00:00 [pmc-release] AID - ijerph15050901 [pii] AID - ijerph-15-00901 [pii] AID - 10.3390/ijerph15050901 [doi] PST - epublish SO - Int J Environ Res Public Health. 2018 May 3;15(5):901. doi: 10.3390/ijerph15050901.