1. Accumulation of Bisphenol A in Hemodialysis Patients
- Author
-
Kazuhiro Ito, Nahoko Kawamura, Masami Kasugai, Kunihiro Nabeshima, Hiroki Takahashi, Sachiko Shimozato, Yumiko Shoji, Miho Akita, Kouichirou Yamamoto, Kazuo Takahashi, Hideo Hori, Atsushi Ohashi, Yoshiyuki Hiki, Makoto Hibiya, Satoshi Sugiyama, Akira Yagi, Makoto Tomita, Miyuki Kunisaki, Kazuhiro Sugiyama, Kazutaka Murakami, Midori Hasegawa, and Shigeru Nakai
- Subjects
Male ,endocrine system ,medicine.medical_specialty ,Bisphenol A ,Polymers ,Polyesters ,medicine.medical_treatment ,Renal function ,Endocrine Disruptors ,Sensitivity and Specificity ,chemistry.chemical_compound ,Phenols ,Renal Dialysis ,Internal medicine ,medicine ,Humans ,Polymethyl Methacrylate ,In patient ,Sulfones ,Benzhydryl compounds ,Benzhydryl Compounds ,Cellulose ,Dialysis ,Aged ,Crossover test ,Cross-Over Studies ,urogenital system ,Membranes, Artificial ,Hematology ,General Medicine ,Middle Aged ,Crossover study ,Endocrinology ,chemistry ,Nephrology ,Equipment Contamination ,Female ,Hemodialysis ,hormones, hormone substitutes, and hormone antagonists - Abstract
Bisphenol A [BPA, 2,2-bis(4-hydoxyphenyl)propane], an industrial chemical used in the production of polycarbonate, epoxide resin, and polyarylate, is considered to be an endocrine-disrupting chemical. BPA may be present in some hollow-fiber dialyzers used in hemodialysis. In this study, we tested the amounts of BPA eluted from various hollow fibers. Furthermore, we measured the BPA concentration in the sera of 22 renal disease predialysis patients, as well as 15 patients who were receiving hemodialysis, to see if there is BPA accumulation in these patients. The elution test of BPA showed that a much larger amount of BPA was eluted from polysulfone (PS), and polyester-polymeralloy hollow fibers. Among renal disease patients who had not undergone hemodialysis, the serum BPA concentration increased as the renal function deteriorated, showing a significant negative association. In a crossover test between PS and cellulose (Ce) dialyzers, the predialysis serum BPA concentration of PS dialyzer users decreased after changing to a Ce dialyzer, and the serum BPA increased again after switching back to PS dialyzers. In patients who were using PS dialyzers, the BPA level significantly increased after a dialysis session. However, in the Ce dialyzer users, the BPA level decreased. Since accumulation of BPA could affect the endocrine or metabolic system of the human body, it is important to perform further investigations on dialysis patients.
- Published
- 2007