Effects of vegetable consumption on postprandial glucose and lipid metabolism including serum adipocytokine

2007 Fiscal Year Final Research Report Summary

• Project/Area Number: 18300257
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Eating habits, studies on eating habits
• Research Institution: Japan Women's University
• Principal Investigator: MARUYAMA Chizuko Japan Women's University, Fac. of Home Economics, Prof (30101570)
• Co-Investigator(Kenkyū-buntansha): ARAKI Risa Japan Women's Univ., Assistant (40409264)
• Project Period (FY): 2006 – 2007
• Keywords: vegetable / obese / hypertriglyceridemia / body weight decrease / nutrition education / postprandial

Research Abstract

Healthy subjects and subjects with obese and hypertriglyceridemia consumed three test meals ; bread (B) meal, bread and butter (BB) meal, bread and butter with spinach(BBS) meal. Blood were collected at fasting, 30, 60, 120, 180 and 240 minutes after each test meal consumption.
Results : In the healthy subjects, postprandial glucose levels tended to be lower and triglyceride levels were significantly higher after BB meal compared to after B meal. Plasma glucose level at 30 minutes after BBS meal was lower than that of after B meal (p<0.05). In the subjects with obese and hypertriglyceridemia, postprandial triglyceride levels were higher after BB meal compared to after B meal, and plasma glucose level at 30 minutes after BBS meal was lower than that of after B and BB meal. Plasma homocystein concentration was lower after BBS meal compared to after BB meal. Postprandial pre-heparin lipoprotein lipase mass did not differ between the BB and BBS meal. TNF-alpha concentration tended to decrea se after BB meal, however, those tended to decrease at 30 minutes and increased to the fasting level after BBS meal. From these results, butter consumption with bread might contribute to suppress postprandial hyperglycemia, but cause hypertriglyceridemia. In the healthy subjects, spinach consumption with bread and butter suggested to have possibility to protect postprandial hyperglycemia.
Study 2.
Subjects were recruited among trading company employee who were indicated to get nutrition education concerning metabolic syndrome. The subjects were allocated to Control group who were educated as usual, and to Veg group who were emphasized to encourage consuming more vegetables compared to usual advice. Blood was obtained at baseline and 3 month after intervention. Result : Significant change in body weight was observed in the Veg group with 3.6kg decrease more than 1.1kg in the Control group (p<0.05). Vegetable intake increased about 50 g in the Veg group and decreased about 150g in the Control group. Nutrition education emphasized to increase vegetable intake are suggested to be effective for body weight reduction.

Research Products

• [Presentation] 低蛋白・野菜付加食の食後血漿ホモシステイン濃度に及ぼす影響 (2008)
  • Author(s): 荒木 理沙, 丸山 千寿子, 菊池 奈穂子, 舛谷 友美子, 弘田 早希, 丸山 太郎
  • Organizer: 第62回日本栄養・食糧学会
  • Place of Presentation: 埼玉県坂戸市女子栄養大学
  • Year and Date: 2008-05-04
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Effect of low protein with vegetable meal on postprandial plasma homocystein concentration (2008)
  • Author(s): Araki, R., Maruyama, C., Kikuchi, N., Masuya, Y., Hirota, S., Maruyama, T
  • Organizer: 62th Congress of Japanese Society of Nutrition and Food Science
  • Place of Presentation: Kagawa education institute of nutrition at Sakado
  • Year and Date: 2008-05-04
  • Description: 「研究成果報告書概要(欧文)」より