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Volume 38 (1980)
- Issue 6 Pages 283-
- Issue 5 Pages 231-
- Issue 4 Pages 185-
- Issue 3 Pages 145-
- Issue 2 Pages 79-
- Issue 1 Pages 1-
Volume 38, Issue 6
Displaying 1-5 of 5 articles from this issue
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Yasuo Kagawa, Kaoruko Nishimura, Junko Sato, Kazuyo Shozawa, Yuko Mura ...1980 Volume 38 Issue 6 Pages 283-294
Published: November 25, 1980
Released on J-STAGE: October 29, 2010
JOURNAL FREE ACCESSThe omission of breakfast has been reported to change circadian rhythm, and induce obesity and hypercholesterolemia, and lower performance on aptitude tests. These effects were studied on sophomores (19-21 years old) living in a dormitory with a cafeteria. The results are summarized as follows:
1978 (number=102) 1979 (number=106)
Those who omitted breakfast Those who took breakfast P Those who omitted breakfast Those who took breakfast P
(n=85) (n=17) (n=64) (n=42)
Intake/day
Energy (kcal) 1916 2180 <0.1 2105 2459 <0.01
Protein (g) 63.1 66.4 <n.s. 67.0 80.8 <0.01
Carbohydrate (g) 283.6 345.1 <0.01 295.4 352.2 <0.001
Calcium (mg) 296.4 408.8 <0.02 409.4 499.0 <0.02
Excretion/24 hours
Urea (g) 7.05 6.58 <0.5 7.49 8.43 <0.5
Calcium (mg) - - - 410.8 497.3 <0.05
Serum
Cholesterol (mg/dl) 190.8 186.4 <n.s. 188.5 191.4 <n.s.
Performance (averaged)
Examination grades 71.51 75.74 <0.01 72.97 75.29 <0.02
Ranking in total grades; 58.1 35.9 <0.01 59.4 44.1 <0.02
Absence from class hours per year. 87.3 53.7 <0.05 89.2 63.4 <0.05
Serum cholesterol level is slightly higher than that of American youths.
The following items showed no significant difference in both groups: height (169.9 vs 170.7cm), weight (61.6 vs 63.0kg), HDL-cholesterol (52.5 vs 53.5mg/dl), triglyceride (116.8 vs 123.7mg/dl), Kaup's index (2.147 vs 2.181) and places of birth (northern and southern Japan).
Thus the omission of breakfast, with the above described reduced intake of nutrients did not induce obesity and hypercholesterolemia despite westernization in their diets. The examination results and attendance records in the class of those who omitted breakfast were inferior to those of people who ate breakfast.View full abstractDownload PDF (11125K) -
Akiko Mitani, Yasunori Mori1980 Volume 38 Issue 6 Pages 295-301
Published: November 25, 1980
Released on J-STAGE: October 29, 2010
JOURNAL FREE ACCESSEffect of emzymatic browning reaction products on α-amylase was investigated with the browning systems of catechol-polyphenol oxidase and catechol-polyphenol oxidase-amino acid.
1. The browning reaction solution of catechol-polyphenol oxidase system inhibited α-amylase activity. Both dialyzable and nondialyzable fractions of the browning system inhibited α-amylase activity, the latter showing more inhibitory effect on α-amylase than the former.
2. The browning reaction solution of catechol-polyphenol oxidase-amino acid system inhibited α-amylase activity. However the effect was less marked than that of catechol-polyphenol oxidase system and their activities were dependent on amino acids used in the reaction system.
3. The browning reaction solution of catechol-polyphenol oxidase system was fractionated into two pigments (P-1, P-2) by gel-filtration on Sephadex G-25. The higher molecular pigment (P-1) showed a little more inhibitory effect on α-amylase activity than the lower molecular pigment (P-2).View full abstractDownload PDF (6758K) -
PCB Toxicity and Nutrition XIVSachie Ikegami, Morio Saito, Sumiko Nagayama, Satoshi Innami, Eiichi N ...1980 Volume 38 Issue 6 Pages 303-309
Published: November 25, 1980
Released on J-STAGE: October 29, 2010
JOURNAL FREE ACCESSThis study was carried out to clarify the effect of dietary vitamin E levels on the depression of vitamin A storage and lipid peroxide formation in rats given PCB.
Weanling male rats of the Sprague Dawley strain were fed the experimental diets containing 0, 0.01 and 0.025% of PCB, and 10 and 25mg% of vitamin E (as α-tocopheryl acetate) for 10 days.
1. Under the conditions used in this study, PCB and vitamin E added to the diets showed no significant effect on body weight gain of rats. The hepatic hypertrophy was observed as PCB content in the diet increased, but it was not depressed by ingestion of diet containing 25mg% vitamin E.
2. PCB administration with vitamin E at a higher level (25mg%) enhanced the concentration of vitamin E in the liver. On the other hand, no significant difference in the vitamin E content of the liver was observed between the animals fed the diets containing 10mg% and 25mg% of vitamin E without PCB.
Vitamin A content in the liver decreased with the increment of PCB in the diet, and it was found that a larger supply of dietary vitamin E did not prevent the depression of vitamin A storge.
3. The TBA value in the liver of rats fed a 0.025% PCB diet increased significantly, and the value was not depressed by the larger supply of dietary vitamin E (2.5 times of usual vitamin E level).
Glutathione peroxidase activities in the whole liver were not varied by PCB administration and the levels of dietary vitamin E. Therefore the activities per gram of the tissue were lowered in the liver enlarged by PCB.
4. The larger supply of dietary vitamin E depressed the content of cytochrome P-450 in the liver microsome which was significantly induced by the ingestion of PCB.View full abstractDownload PDF (7810K) -
Yoshiki Kobatake, Noriko Ishiguro, Fumiko Hirahara, Satoshi Innami, Ei ...1980 Volume 38 Issue 6 Pages 311-319
Published: November 25, 1980
Released on J-STAGE: October 29, 2010
JOURNAL FREE ACCESSWe investigated nutritional effects of long term feeding (21 weeks) of the diets containing the krill (Euphausia sperba) with male growing rats. No significant changes were noted in rats given a 10% krill diet (containing 10% krill protein) compared to those of a 10 or 20% casein diet. However, weight gain, food intake, serum iron concentration, hemoglobin, red blood cell counts and weight of epidydimal fat pads of rats fed 20% krill diet (containing 20% krill protein) markedly decreased as compared to those of rats fed the 10% krill diet or the two casein diets. The increase in total iron binding capacity and weight of kidneys was also observed in rats fed the 20% krill diet. The serum iron concentration and volume of each red blood cell decreased in rats fed the 20% krill diet despite further addition of the salt mixture. These results show that the continuous feeding of the diet high in whole krill may cause an iron deficient anemia. The concentrations of lipid peroxide and total cholesterol in serum of rats fed the 10 or 20% krill diet were not different from those of the casein diets, but the fatty acid composition of adipose tissue varied, approximately reflecting that of the krill fat.View full abstractDownload PDF (9979K) -
[in Japanese]1980 Volume 38 Issue 6 Pages 321-325
Published: November 25, 1980
Released on J-STAGE: October 29, 2010
JOURNAL FREE ACCESSDownload PDF (5648K)
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