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4. Green tea catechin consumption enhances exercise-induced abdominal fat loss in overweight and obese adults

Author

Maki, Kevin C., Reeves, Matthew S., Farmer, Mildred, Yasunaga, Koichi, Matsuo, Noboru, Katsuragi, Yoshihisa, Komikado, Masanori, Tokimitsu, Ichiro, Wilder, Donna, Jones, Franz, Blumberg, Jeffrey B., and Cartwright, Yolanda

Subjects
Green tea -- Nutritional aspects, Catechin -- Health aspects, Obesity -- Diet therapy, Exercise -- Health aspects, Weight loss -- Methods, Body composition -- Evaluation, Food/cooking/nutrition
Abstract

This study evaluated the influence of a green tea catechin beverage on body composition and fat distribution in overweight and obese adults during exercise-induced weight loss. Participants (n = 132 with 107 completers) were randomly assigned to receive a beverage containing ~625 mg of catechins with 39 mg caffeine or a control beverage (39 mg caffeine, no catechins) for 12 wk. Participants were asked to maintain constant energy intake and engage in [greater than or equal to] 180 min/wk moderate intensity exercise, including [greater than or equal to] 3 supervised sessions per week. Body composition (dual X-ray absorptiometry), abdominal fat areas (computed tomography), and clinical laboratory tests were measured at baseline and wk 12. There was a trend (P = 0.079) toward greater loss of body weight in the catechin group compared with the control group; least squares mean (95% CI) changes, adjusted for baseline value, age, and sex, were -2.2(-3.1, -1.3)and -1.0(-1.9, -0.1) kg, respectively. Percentage changes in fat mass did not differ between the catechin [5.2 (-7.0, -3.4)] and control groups [-3.5 (-5.4, 1.6)] (P = 0.208). However, percentage changes in total abdominal fat area [-7.7 (-11.7, -3.8) vs. -0.3 (-4.4, 3.9); P = 0.0131, subcutaneous abdominal fat area [-6.2 (-10.2, -2.2) vs. 0.8 (-3.3, 4.9); P = 0.0191, and fasting serum triglycerides (TG) [-11.2 (-18.8, -3.6) vs. 1.9 (-5.9, 9.7); P = 0.023] were greater in the catechin group. These findings suggest that green tea catechin consumption enhances exercise induced changes in abdominal fat and serum TG.

Published
2009

14. Long-term ingestion of dietary diacylglycerol lowers serum triacylglycerol in type II diabetic patients with hypertriglyceridemia. (Human Nutrition and Metabolism Research Communication)

Author

Yamamoto, Kunio, Asakawa, Hideki, Tokunaga, Katsuto, Watanabe, Hiroyuki, Matsuo, Noboru, Tokimitsu, Ichiro, and Yagi, Noriko

Subjects
Ingestion -- Physiological aspects, Triglycerides -- Physiological aspects, Type 2 diabetes -- Physiological aspects, Blood lipids -- Physiological aspects, Food/cooking/nutrition
Abstract

We examined the effect of daily consumption of dietary diacylglycerol (DG) oil on serum lipid concentrations in patients with diabetes whose serum triacylglycerol (TG) levels were persistently increased despite continuous nutritional counseling at the outpatient clinic. Patients (n = 16) were divided into DG and control groups (n = 8 each). DG was incorporated (target dose 10 g/d) by substituting DG oil (80 g DG/100 g oil) for the ordinary TG cooking oil used at home for 12 wk. The control group continued consuming ordinary TG cooking oil. Dietary records indicated that there were no differences between groups in total energy intake or percentage of energy from fat. In the DG group, TG intake decreased from 26.8 [+ or -] 9.3 to 15.7 [+ or -] 8.9 g/d, whereas DG intake increased from 0.3 [+ or -] 0.1 to 10.6 [+ or -] 3.9 g/d. No differences between groups were observed in body weight, total fat intake or total oil consumption throughout the study period. In the DG group, serum TG levels decreased 39.4% from 2.51 [+ or -] 0.75 mmol/L to 1.52 [+ or -] 0.28 mmol/L. Serum glycohemoglobin [A.sub.1c] (Hb[A.sub.1c]) concentration also decreased 9.7%. In contrast, there were no changes in these variables in the control group. Serum total and HDL cholesterol were not affected in either group. These results indicate that DG oil may be useful as an adjunct to the standard diet therapy of fat restriction in the management of diabetics with hypertriglyceridemia. KEY WORDS: * diacylglycerol * triacylglycerol * humans * diabetes * hypertriglyceridemia

Published
2001

21. Consumption of diacylglycerol oil as part of a reduced-energy diet enhances loss of body weight and fat in comparison with consumption of a triacylglycerol control oil

Author

Maki, Kevin C, Davidson, Michael H, Tsushima, Rikio, Matsuo, Noboru, Tokimitsu, Ichiro, Umporowicz, Denise M, Dicklin, Mary R, Foster, Gregory S, Ingram, Kate A, Anderson, Barbara D, Frost, Scott D, and Bell, Marjorie

Subjects
Obesity -- Diet therapy, Weight loss -- Methods, Diet therapy -- Health aspects, Reducing diets -- Physiological aspects, Food/cooking/nutrition, Health
Abstract

Background: Diacylglycerol is a natural component of edible oils that has metabolic characteristics that are distinct from those of triacylglycerol. Objective: We assessed the efficacy of an oil containing mainly 1,3-diacylglycerol in reducing body weight and fat mass when incorporated into a reduced-energy diet. Design: The study was a randomized, double-blind, parallel intervention trial that was conducted at an outpatient clinical research center. The subjects (n = 131) were overweight or obese men (waist circumference [greater than or equal to] 90 cm) and women (waist circumference [greater than or equal to] 87 cm). Food products (muffins, crackers, soup, cookies, and granola bars) containing diacylglycerol or triacylglycerol oil and having the same fatty acid composition were incorporated into a reduced-energy diet (2100-3350-kJ/d deficit) for 24 wk. Percentages of change in body weight, fat mass, and intraabdominal fat area were assessed. Results: In an intention-to-treat analysis, body weight and fat mass decreased significantly more in the diacylglycerol group than in the triacylglycerol group (P = 0.025 and 0.037, respectively). By the end of the trial, mean body weight had decreased 3.6% and 2.5% in the diacylglycerol and triacylglycerol groups, respectively. Fat mass decreased 8.3% and 5.6% in the diacylglycerol and triacylglycerol groups, respectively. Conclusion: Foods containing diacylglycerol oil promoted weight loss and body fat reduction and may be useful as an adjunct to diet therapy in the management of obesity. KEY WORDS Diacylglycerol, body weight, body composition, visceral fat, intraabdominal fat, fat mass, triacylglycerol, obesity, overweight

Published
2002

31. Diacylglycerol Oil

Author

Katsuragi, Yoshihisa, primary, Flickinger, Brent, additional, Yasukawa, Takuji, additional, Matsuo, Noboru, additional, and Tokimitsu, Ichiro, additional

Published
2004
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33. cDNA cloning and expression of human lactosylceramide synthase1The nucleotide sequence reported in this paper has been submitted to the GenBank Data Bank with accession number AF097159.1

Author

Takizawa, Minoru, primary, Nomura, Tomoko, additional, Wakisaka, Etsuji, additional, Yoshizuka, Naonobu, additional, Aoki, Junken, additional, Arai, Hiroyuki, additional, Inoue, Keizo, additional, Hattori, Michihiro, additional, and Matsuo, Noboru, additional

Published
1999
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34. Purification, cDNA Cloning, and Expression of UDP-Gal: Glucosylceramide β-1,4-Galactosyltransferase from Rat Brain

Author

Nomura, Tomoko, primary, Takizawa, Minoru, additional, Aoki, Junken, additional, Arai, Hiroyuki, additional, Inoue, Keizo, additional, Wakisaka, Etsuji, additional, Yoshizuka, Naonobu, additional, Imokawa, Genji, additional, Dohmae, Naoshi, additional, Takio, Koji, additional, Hattori, Michihiro, additional, and Matsuo, Noboru, additional

Published
1998
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35. Nutritional Characterization of Diacylglycerols in Rats.

Author

WATANABE, Hiroyuki, primary, ONIZAWA, Kouji, additional, TAGUCHI, Hiroyuki, additional, KOBORI, Mayumi, additional, CHIBA, Hiroe, additional, NAITO, Sachio, additional, MATSUO, Noboru, additional, YASUKAWA, Takuji, additional, HATTORI, Michihiro, additional, and SHIMASAKI, Hiroyuki, additional

Published
1997
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47. RADIOISOTOPES

Author

KOBAYASHI, Tetsuji, primary, SUGITA, Tohru, additional, SASAKI, Tetsuo, additional, and MATSUO, Noboru, additional

Published
1974
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