• Journal of Nutrition and Health
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• v.26 no.5
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• pp.593-602
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• 1993

As part of the Nutrition CRSP Mexico project conducted in rural villages in highland Mexico, this study examined whether nutritional factors, family characteristics, and the duration of schooling were associated with cognitive performances in 107 schoolers(53 boys and 54 girls) aged 8~10. Food intake was measured by recall, direct observation and weighment twice monthly over the course of a year. Families were characterized in terms of socioeconomic status and parental cognitive performance, education and aspiration. Dietary quality, but not energy intake, and anthropometry (wt-for-age, ht-for-age, head circumference) were significantly associated with cognitive test results for both verbal and performance measures. When the effect of SES is controlled using partial correlation, the relationships were substantially weakened. Sex differences were also found in response to nutritional deprivation. Among boys, dietary quality was the most important indicator of cognitive performance, while household economic conditions were more importantly associated with cognitive performance among girls. Participation in schooling was important for cognitive skille as it related to nutritional status.

• Proceedings of the Korean Aquaculture Society Conference
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• 2003.10a
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• pp.76-77
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• 2003

Olive flounder Paralichthys olivaceus larvae and early juveniles were reared for 43 days after hatching in order to observe the effects of starvation during development and metamorphosis. Morphological, histological and biochemical measurements were made to assess the nutritional condition during growth and starvation from pre-matamorphic through post-metamorphic phases. Two groups of fish were compared ; one with sufficient food supply and one under continuous starvation until death. Among morphometric analyses, both ratios of body height at anus/head height and pre-/post-anal lengths appeared to be sensitive to starvation during which substantial reduction was observed within a day of food deprivation. Histological variables as intestinal and rectal epithelial heights and gall bladder volume changed significantly with onset of starvation. The gut epithelial heights of starving fish decreased with advances in starvation, although they fluctuated during mid-metamorphic phase. In contrast, gall bladder volume increased remarkably soon after starvation. Ontogenetic changes in both gut epithelial height and gall bladder volume were evident, those associated with settlement and/or completion of metamorphosis. Abrupt decrease in the RNA/DNA ratios of starving fish were found right after onset of starvation. Even in the fed fish marked fluctuations in its ratios during metamorphosis were observed, evident by decreasing from late-metamorphic to post-metamorphic stages. These findings suggest that a combination of morphologically and histologically sensitive characteristics, and biochemical measurement could be utilized as a measure to evaluate nutritional condition related to starvation in wild olive flounder larvae and juveniles.

• The Korea Journal of Herbology
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• v.31 no.2
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• pp.1-5
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• 2016

Objectives : Seborrheic dermatitis is an inflammatory skin disorder affecting the scalp, face, and torso. Typically, it presents with scaly, flaky, itchy, and red skin. It may be aggravated by illness, psychological stress, fatigue, sleep deprivation, change of season. The purpose of this study was to report the clinical effects of herbal medicine on Seborrheic dermatitisMethods : We employed oriental medical treatments; herbal-medication (Bangpungtongsungsangamibang), acupuncture, moxibustion and cupping therapy. At the same time, the patient sweated out the skin poison. We treated him two times a week with oriental therapy method. He took medicine three times a day after a meal. During taking medicine, we let him avoid fatty food, flour based food, and alcohol. We took a picture the patient's body parts and compared the symptom with previous symptom. With the picture, we evaluated the patient's condition.Results : After taking treatment - 77 times' acupuncture, moxibustion and cupping therapy during 9 months and taking herbal-medicine, the skin condition of the patient was much improved. At first, he was troubled with itching and hot feeling at reddish area, time after time the itching and hot feeling was weakened. The reddish area was changed to scaly and flaky skin and changed to normal state.Conclusions : Herbal medicine (Bangpungtongsungsangamibang) with oriental medical treatments was an effective in the treatment of Seborrheic Dermatitis and it helped to improve regenerating the skin in the body.

• Asian-Australasian Journal of Animal Sciences
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• v.27 no.9
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• pp.1360-1367
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• 2014

Triplicate groups of fed and starved olive flounder, Paralichthys olivaceus (body weight: $119.8{\pm}17.46$ g), were examined over 42 days for physiological changes using hematological, biochemical, and non-specific immune parameters. No significant differences in concentrations of blood hemoglobin and hematocrit and plasma levels of total cholesterol, aspartate aminotransferase, alanine aminotransferase, glucose, and cortisol were detected between fed and starved groups at any sampling time throughout the experiment. In contrast, plasma total protein concentrations were significantly lower in starved fish than in fed fish from day 7 onwards. Moreover, plasma lysozyme concentrations were significantly higher in starved flounder from day 21 onwards. This result confirms that the response of olive flounder to short-term (less than about 1.5 months) starvation consists of a readjustment of metabolism rather than the activation of an alarm-stress response. The present results indicate that starvation does not significantly compromise the health status of fish despite food limitation.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.29 no.2
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• pp.150-156
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• 1996

Insulin-like growth factor-1 (IGF-I) is a mitogenic peptide with molecular mass of 7kDa. It is produced mainly in the liver and has important functions in the regulation of development and somatic growth. Recently, several investigations were undertaken to examine the biological actions and structures of IGF-I in fish. In this study, the serum levels of IGF-I were estimated from flounder, Parlichthys oilvaceus, before, during and after fasting, and the levels were accounted for 47 ng/ml, 40 ng/ml and 45 ng/ml, respectively. These results suggest that food deprivation primarily reduces IGF-I level in the blood.

• The Korean Journal of Community Living Science
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• v.12 no.2
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• pp.33-45
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• 2001

This study was performed to investigate the degree of different stresses in university students of outer region of Seoul and to search the influence of food habit and nutrient intakes in stress. The data was collected by questionnaire method for self-diagnosed different stresses, dietary habit, and physical status and 24 hours recall for nutrient intakes. The subjects were 282 students attended at the lecture Food and Health. Diet balance was no difference with gender but food intakes were more diverse in female. Nutrient intake of male students was lower in vitamin A and riboflavin, but that of female was low in vitamin A and iron. The university students outer region of Seoul had more stress situation in frustration, deprivation and self-efface than in the stress of the noise and Type-A behavioral stress. Total self-diagnosed dietary habit score was better in the group of no susceptive overload stress than that of the high susceptive group. Same trend of dietary behavior score was in the group of no noise and anxiety-response stress than that in the susceptive groups. The quantity of nutrient intakes was correlated with different kind of stress. Niacin intake was positively related with the stress from life-events, and food induced stress. Thiamin intake was positively related with food induced stress. But the intake of iron, calcium, niacin and riboflavin were negatively related with the stress of noise. Therefore, we could concluded that different kind of stresses were influenced in dietary behavior and vitamin-mineral nutrient intakes. More research would be needed at the aspects of health promotion in the stressful situation of modern society.

• Journal of the Korean Society of Food Culture
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• v.34 no.4
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• pp.486-494
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• 2019

There are an increasing number of reports that job related factors are associated with hypertension, sleep deprivation, obesity and diabetes. This study analyzed the relationship of working type, working hours and the prevalence of metabolic syndrome. The study's subjects were 2,777 employees (1,446 males and 1,331 females) over 19 years old and their data was from the Korea National Health and Nutrition Survey (2015). The type of work was divided into day work and shift work. The working hours were divided into less than 40 hours, 40 to 49 hours, 50 to 59 hours and 60 hours or more per week. As a result of this study, the prevalence of metabolic syndrome was 26.4% of the males and 19.1% of the females. Generally there was no relationship between metabolic syndrome and type of work (day work and shift work). As a result of analysis of working hours and metabolic syndrome, the workers who worked 40-49 hr were associated with a decreased prevalence of metabolic syndrome as compared to that of workers who worked less than 40 hr (odds ratio: 0.47, 95% confidence interval: 0.24-0.95, p<0.05). Further, positive relationships were found between the number of work hours and the prevalence metabolic syndrome for specific females who worked over 40 hr/wk. It can be concluded from the results that it is important to help workers avoid metabolic syndrome through setting appropriate work hours.

• Asian-Australasian Journal of Animal Sciences
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• v.18 no.3
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• pp.396-402
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• 2005

Three experiments were conducted to determine the effects of dietary arginine concentrations on plasma free amino acid (PAA) concentrations in rainbow trout, Oncorhynchus mykiss (Walbaum). The first experiment was conducted to determine appropriate post-prandial and food deprivation sampling times in dorsal aorta cannulated rainbow trout averaging 519${\pm}$9.5 g (mean${\pm}$SD) at $16^{\circ}C$. Blood samples were taken at 0, 2, 3, 4, 5, 6 and 24 h after feeding (0 and 24 h blood samples were taken from the same group of fish). PAA concentrations increased by 2 h post-feeding and the concentration of all essential amino acids except histidine peaked at 5 h and returned to 0 time values by 24 h. In the second experiment dorsal aorta cannulated rainbow trout averaging 528${\pm}$11.3 g (mean${\pm}$SD) were divided into 6 groups of 4 fish to study the effect of dietary arginine levels on PAA. After 24 h food deprivation, each group of fish was fed one of six L-amino acid diets containing graded levels of arginine (0.48, 1.08, 1.38, 1.68, 1.98 or 2.58%) by intubation. Blood samples were taken at 0, 5 and 24 h after feeding. Post-prandial (5 h after feeding) plasma-free arginine concentrations (PParg) showed a breakpoint at 1.03% arginine in the diet and post-absorptive (24 h after feeding) plasma free-arginine concentrations (PAarg) showed a breakpoint at 1.38% arginine. PAarg increased linearly from fish fed diets containing arginine between 0.48% and 1.38%, and the concentrations remained constant from fish fed diets containing arginine at or above 1.38%, but were all below PParg at all time points. Results of the third experiment confirm the results that PParg concentrations from fish fed arginine deficient diets were higher than PAarg (0 or 24 h values). Thus, in contrast to mammals and birds, the PParg when arginine is present in the diet as the most limiting amino acid such that it severely limits growth, increases in plasma rather than decreases.

• Journal of Life Science
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• v.16 no.4
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• pp.618-625
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• 2006

Patterns of induced daily torpor were measured in the striped field mouse, Apodemus agrarius, in response to low temperature, food deprivation and various photoperiods using implanted data loggers. A total of 8 of 21 females entered daily torpor in response to low outside ambient temperature (Ta) during winter and spring, constant low Ta $(4^{\circ}C)$ or food deprivation $(23^{\circ}C)$ during summer, but 2 of 23 males did only in response to low outside Ta during winter. This fact indicates that torpor is an adaptive hypothermia to unpredictable environment in both some males and females, as well as that torpor was inhibited in males in the reproductive season as in other mammals, which is regarded as a strategy not to reduce the chance of copulation. As for females, however, torpor was employed in response to unpredictable environment even in the reproductive season, suggesting that alternative strategies other than keeping the chance of copulation maybe hired by females to keep the population. Torpor bout generally began at $6{\sim}12$ AM, but the decrease of body temperature $(T_b)$ began mainly at $4{\sim}6$ AM at any conditions, the time when Ta is lowest. This strategy might be also adopted for reducing heat loss to unpredictable environment. Minimum $T_b$ of both males and females during torpor did not fall below $16.5^{\circ}C$. Photoperiod had no influence on the incidence and timing of daily torpor in either males and females. The similar timing of torpor bout in response to the 3 different photoperiods (24D, 16L:8D or 8L:16D) under the constant temperatures $(4^{\circ}C\;or\;23{\pm}2^{\circ}C)$ suggests that entering time of torpor might be controlled by the circadian rhythm of the mice rather than by the photoperiod.

• The Journal of Internal Korean Medicine
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• v.34 no.2
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• pp.113-121
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• 2013

Objectives : This study aimed to find out whether acupuncture at various acupoints shows any effects on appetite by regulating neurotransmitters in the hypothalamus through the expression of NPY and LR in the PVN via immunohistochemistry. Methods : Male Sprague-Dawley rats were divided into eight groups of five mice each. The rats in the acupuncture groups were treated with acupuncture at respective acupoints, twice per a day for 3 days. The animals were sacrificed 72 h after commencement of the experiment, the brains being dissected into serial coronal sections. Expressions of neuropeptide Y and leptin receptor in the hypothalamus were assessed by immunohistochemistry. Results : NPY expression in the PVN was enhanced and LR expression in the PVN was decreased by food deprivation. NPY immunoreactivity in the PVN of the food-derived rats was decreased by acupuncture at the auricular acupoint, Zusanli-acupoint, a and non-acupoint. However, acupuncture at the auricular acupoint showed most potent suppressing effect on NPY expression in the PVN of food-deprived rats. LR expression in the PVN decreased following food deprivation, and auricular acupuncture increased LR expression in the PVN of food-deprived rats. In normal conditions (fed state), LR expression in the PVN was not changed by acupuncture treatment at several sites. Conclusions : From this study, we have shown that acupuncture at the auricular acupoint exerts the most potent appetite suppressing effect on the food restriction state.