title: Acute systemic accumulation of acrolein in mice by inhalation at a concentration similar to that in cigarette smoke.
abstract: Cigarette smoke is an important environmental factor associated with a wide array of public health concerns. Acrolein, a component of tobacco smoke and a known toxin to various cell types, may be a key pathological factor mediating the adverse effects linked with tobacco smoke. Although acrolein is known to accumulate in the respiratory system after acute nasal exposure, it is not clear if it accumulates systemically, and less is known in the nervous system. The aim of this study was to assess the degree of acrolein accumulation in the circulation and in the spinal cord following acute acrolein inhalation in mice. Using a laboratory-fabricated inhalation chamber, we found elevated urinary 3-HPMA, an acrolein metabolite, and increased acrolein adducts in the spinal cord after weeks of nasal exposure to acrolein at a concentration similar to that in tobacco smoke. The data indicated that acrolein is absorbed into the circulatory system and some enters the nervous system. It is expected that these findings may facilitate further studies to probe the pathological role of acrolein in the nervous system resulting from smoke and other external sources.
authors.affiliation: Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA.|Indiana University School of Medicine, Indianapolis, IN, USA.
authors.forename: Melissa
authors.initials: M
authors.lastname: Tully
authors.affiliation: Department of Basic Medical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA.|Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA.
authors.forename: Lingxing
authors.initials: L
authors.lastname: Zheng
authors.affiliation: Department of Basic Medical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA.
authors.forename: Glen
authors.initials: G
authors.lastname: Acosta
authors.affiliation: Department of Basic Medical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA.|Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA.
authors.forename: Ran
authors.initials: R
authors.lastname: Tian
authors.affiliation: Department of Basic Medical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA. riyi@purdue.edu.|Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA. riyi@purdue.edu.
authors.forename: Riyi
authors.initials: R
authors.lastname: Shi
mesh_terms: D000111:Acetylcysteine / Q000031:analogs & derivatives / Q000652:urine; D000171:Acrolein / Q000633:toxicity*; D000280:Administration, Inhalation; D000818:Animals; D003404:Creatinine / Q000652:urine; D051379:Mice; D013116:Spinal Cord / Q000187:drug effects* / Q000378:metabolism
chemical_list: D000171:Acrolein; D003404:Creatinine; C001423:S-(3-hydroxypropyl)cysteine N-acetate; D000111:Acetylcysteine