title: Efficacy of n-3 polyunsaturated fatty acid enriched enteral nutrient solution in relieving oxidative stress in patients with severe psychophysiologic disorders.
abstract: It is not unusual for patients with severe motor and intellectual disabilities to present with eating and swallowing disorders, and such patients often require long term enteral nutrition. These patients tend to receive all their nutrients in the form of a single nutrient solution that is administered over a long period, and there are concerns about the impact of the composition of these nutrient formulas on patient health. Therefore, it is very important that adequate care be taken when selecting a nutrient formula for patients of this type. In the present study we administered two types of enteral nutrient solutions and examined the effect of the differences in nutrient composition on the degree of oxidative stress experienced by human patients. Subjects were 5 patients (mean age: 27.2 years; male/female ratio: 4:1) with severe motor and intellectual disabilities who were incapable of oral feeding, and who were receiving long term enteral nutrition. The subjects were administered a standard elemental diet for 2 months, and this was followed by administration of an n-3 polyunsaturated fatty acid enriched enteral nutrient solution for three months. Results showed that the n-3 polyunsaturated fatty acid enriched diet improved serum concentrations of trace elements, protein synthesis, and the balance between n-6 polyunsaturated fatty acids and n-3 polyunsaturated fatty acids, which are essential fatty acids. At the same time oxidative stress was reduced, and serum IgE levels declined significantly. Patients with severe psychophysiological disorders often suffer from repeated bouts of pneumonia due to immune system suppression, and there are reports that such patients are subject to increased allergic diathesis. The present results indicated that the in vivo membrane damage induced by oxidative stress may be closely related to the onset of these disorders. The results also suggested that in addition to attaining an adequate understanding of the effect of each of the various nutrients in enteral nutrient formulas, it will also be important to consider not only trace elements but also fatty acid composition in the nutritional management of patients with such disorders.
authors.affiliation: Department of Pediatric Surgery, Kurume University School of Medicine, 67 Asahi-machi, Kurume 830-0011, Japan. yoshi456@med.kurume-u.ac.jp
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Tanaka
authors.forename: Hiroyoshi
authors.initials: H
authors.lastname: Mizote
authors.forename: Hiroko
authors.initials: H
authors.lastname: Inada
authors.forename: Takashi
authors.initials: T
authors.lastname: Motohiro
authors.forename: Hidefumi
authors.initials: H
authors.lastname: Kobayashi
authors.forename: Suguru
authors.initials: S
authors.lastname: Fukahori
authors.forename: Hiroko
authors.initials: H
authors.lastname: So
authors.forename: Mari
authors.initials: M
authors.lastname: Otani
authors.forename: Hirotaka
authors.initials: H
authors.lastname: Nakamizo
authors.forename: Kimio
authors.initials: K
authors.lastname: Asagiri
authors.forename: Kenjiro
authors.initials: K
authors.lastname: Akiyoshi
authors.forename: Tomomitsu
authors.initials: T
authors.lastname: Tsuru
authors.forename: Shigeki
authors.initials: S
authors.lastname: Hikida
mesh_terms: D000293:Adolescent; D000328:Adult; D015525:Fatty Acids, Omega-3 / Q000008:administration & dosage*; D001068:Feeding and Eating Disorders / Q000150:complications / Q000628:therapy*; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000150:complications / Q000628:therapy*; D008297:Male; D009422:Nervous System Diseases / Q000150:complications / Q000628:therapy*; D018384:Oxidative Stress; D010288:Parenteral Nutrition
chemical_list: D015525:Fatty Acids, Omega-3