• Title/Summary/Keyword: Heart development

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Total Energy Expenditure and Its Relationship with Physical Characteristics in Korean Children (한국 아동의 운동에너지 소비량과 신체적 특성과의 연관성)

  • Cho, Kang-Ok;Choi, Hye-Jung
    • 한국체육학회지인문사회과학편
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    • v.51 no.6
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    • pp.515-522
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    • 2012
  • The purpose of this study was to investigate the total energy expenditure (TEE) and then it's relationship between degree of energy expenditure and physical characteristics of Korean 1,370 children. The values of total energy expenditure were classified into under 1,000kcal/week, 1.000~2,000kcal/week, and over 2,000kcal/week. The average TEE of boys and girls were 2,088.4kcal/week and 1,695.6kcal/week. When compared with children of under 1,000kcal/week, the boys of the 1,000~2,000kcal/week showed significant difference in height (p<.001), weight (p<.05), waist circumference (p<.05), blood pressure (p<.001) and girls showed in height (p<.05), blood pressure (p<.01), heart rate (p<.01). However, the boys of over 2,000kcal/week showed significant difference in height, weight, waist circumference, BMJ, and blood pressure (p<.001) and girls in height (p<.001), waist circumference (p<.001), BMI (p<.05), blood pressure (p<.001). For correlation between the TEE and physical characteristics, TEE had significantly correlations with height (r=.298, p<.001), body weight (r=-.331, p<.001), waist circumference (r=-.236, p<.001), BMI (r=-.252, p<.001), blood pressure (r=-.239, p<.001), and heart rate (r=-.226, p<.001) for boys and height (r=.236, p<.001), systolic blood pressure (r=-.310, p<.001), and diastolic blood pressure (r=-.180, p=.016) for girls. These results show that physical characteristics were affected by physical activity for boys while only height and blood pressure were affected in girls.

Utilization and Development of Major Wood Resources in Kangwon-do -Permeability system of monomer in wood polymer composites- (강원도(江原道) 지역(地域)의 침활엽수재(針闊葉樹材) 목재자원(木材資源)의 이용개발(利用開發)을 위한 기초적(基礎的) 연구(硏究) -복합목재 제조를 위한 단량체의 침투기구-)

  • Lee, Won-Yong;Lee, Sung-Jae
    • Journal of Forest and Environmental Science
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    • v.14 no.1
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    • pp.1-13
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    • 1998
  • In this paper, it has been discussed on the relation between the anatomical features of woods and the penetration of methyl methacrylate monomer system into major Korean tree species, especially the Pinus koraiensis, Larix leptolepis, Quercus mongolica and Tilia amurensis. 1. There was some differences in penetration of polymers among different tree species, but generally the penetration of ring porous woods seems to be larger than that of diffuse porous woods and it was very difficult to penetrate to Larix leptolepis, especially to the that of heart wood. 2. The penetration on transeverse surface was relatively easy but radial and tangential impregnation were somewhat hard and differences between them were negligible. 3. The penetration of sapwood was larger than that of heartwood and its differences varied according to the existence of tyloses or contents in vessel. 4. Generally the polymer penetration of earlywood was larger than that of latewood in ring porous woods, but on the contrary, penetration of earlywood was small than that of latewood on diffuse porous woods. 5. Vessel diameter of wood had nearly no relation to polymers penetration. This seems to come from the reason that effective vessel diameter varies with the existence of tyloses or contents in vessel. 6. The penetration of ray tracheids was larger than that of ray parenchyma cells in softwoods, but penetration of hardwood rays seems to be small in comparison with softwood ray parenchyma cells. 7. Specific gravity and annual ring width had no relation to the penetration of polymer.

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Development of Analytical Method for Fipronil and Fipronil-Sulfone in Animal Serum by LC-MS/MS (LC-MS/MS에 의한 동물 혈청 내 피프로닐 및 피프로닐 설폰 분석법 개발)

  • Lee, Jeongsun;Park, Na-Youn;Jung, Woong;Kho, Younglim
    • Journal of the Korean Chemical Society
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    • v.63 no.6
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    • pp.415-419
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    • 2019
  • Fipronil is an insecticide that belongs to the N-phenylpytazole and has been used mainly for an insect pest control. However, it is known that acute poisoning of the human body causes various symptoms such as dizziness, muscle weakness, dyspnea, skin irritation, and increased heart rate. Lately, eggs containing fipronil have been distributed and toxic problems are spreading around the world. In this study, we tried to develop analytical methods to evaluate the exposure of fipronil and fipronil sulfone in animal serum samples. The differences according to mobile phase and the results of liquid - liquid extraction and solid phase extraction pretreatment method were compared. Distilled water (A) and acetonitrile (B) were selected for the mobile phase, and the pretreatment method was determined by solid phase extraction. As a result of the method validation, the intra-day / inter-day accuracies were 82.2~114.1% and the precisions were less than 20%. The detection limit was 0.027 ng/ml for fipronil and 0.087 ng/ml for fipronil sulfone. The linearity obtained was satisfying, with a coefficient of determination (r2) higher than 0.99. The concentrations in some animal sera were determined using the methods of analysis for fipronil and fipronil sulfone in animal sera developed in this study. Using the method developed in this study, it could be used as an analytical method for human bio-monitoring of fipronil and fipronil sulfone as well as animal serum.

Oral Features in a Child with Noonan Syndrome : A Case Report (누난 증후군 환자의 구강 내 특징 : 증례 보고)

  • Hwang, Inkyung;Lee, Yeonju;Sim, Dohee;Mah, Yonjoo
    • Journal of the korean academy of Pediatric Dentistry
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    • v.45 no.1
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    • pp.115-122
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    • 2018
  • Noonan syndrome is characterized by distinctive facial features, short stature, and congenital heart disease. It is a congenital genetic disorder with a prevalence of between 1/1,000 and 1/2,500 in both genders. An 11-year-old boy with Noonan syndrome visited the hospital with an ectopically positioned tooth. A pulmonary stenosis was diagnosed and his growth and development were delayed. In many cases of this diseases there is obvious hemostasis, which he was not experiencing. His facial appearance showed characteristic features of Noonan syndrome. The patient showed a dental class II relationship, labioversion of the upper anterior teeth, and a shallow overbite. Radiographic examination revealed that the upper right canine was ectopically positioned, which led to root resorption of the upper right lateral incisor. A lateral cephalometric radiograph revealed a craniofacial pattern that was within normal limits. Surgical opening and button attachment on the impacted upper right canine were performed and traction was applied on the impacted tooth using a removable appliance. This patient was mildly affected by Noonan syndrome and showed some dental problems. However, few studies have reported the oral characteristics of Noonan syndrome despite its high incidence. Thus, this case report describes the oral features and management of Noonan syndrome.

HPV 16 E6/E7 Transgenic Mice Have Hyperkeratosis and Modulated Antioxidant Enzyme Activities

  • Kim, Myoung-Ok;Lee, Eun-Ju;Kim, Sung-Hyun;Park, Jun-Hong;Cho, Kyoungin;Jung, Boo-Kyung;Kim, Hee-Chul;Hwnag, Sol-Ha;Kim, Sun-Jung;Ryoo, Zae-Young
    • Proceedings of the Korean Society of Developmental Biology Conference
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    • 2003.10a
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    • pp.106-106
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    • 2003
  • Human papillomavirus type 16(HPV16) has been known to the major factor for the development of uterine cervical carcinomas. We have extended these studies to investigate the in vivo activities of HPV-16 E6/E7 when expressed in squamous epithelia of transgenic mice. Grossly, hK14HPV16E6/E7 transgenic mice had multiple phenotypes, including wrinkled skin that was apparent prior to the appearance of hair on neonates, thickened ears, and loss of hair in adults. In the transgenic mice, the wrinkled skin phenotype on the body and legs died at the age of 3-4 weeks. Histological analysis of demonstrated that E6/E7 causes epidermal hyperplasia in multiple transgenic lineages with high penetrance. This epithelial hyperplasia was characterized by an expansion of the proliferating compartment and an expansion of the keratinocyte and was associated with hyperkeratosis. These transgenic mice expressed E6/E7 transgene mainly in skin, heart, pancreas and kidney. Hyperplasia was found at the skin. The enzyme activities of GR, GPx and CuZnSOD were measured from the transgene cause keratinocyte at the skin. The specific enzyme activities were significantly higher in transgenic mice skin compared to the normal mice skin. Thus these transgenic mice may be useful for the develpment of antioxidant enzymes or other therapies for HPV-associated hyperkeratosis.

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Effect of Genetic Predisposition on Blood Lipid Traits Using Cumulative Risk Assessment in the Korean Population

  • Go, Min-Jin;Hwang, Joo-Yeon;Kim, Dong-Joon;Lee, Hye-Ja;Jang, Han-Byul;Park, Kyung-Hee;Song, Ji-Hyun;Lee, Jong-Young
    • Genomics & Informatics
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    • v.10 no.2
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    • pp.99-105
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    • 2012
  • Dyslipidemia, mainly characterized by high triglyceride (TG) and low high-density lipoprotein cholesterol (HDL-C) levels, is an important etiological factor in the development of cardiovascular disease (CVD). Considering the relationship between childhood obesity and CVD risk, it would be worthwhile to evaluate whether previously identified lipid-related variants in adult subjects are associated with lipid variations in a childhood obesity study (n = 482). In an association analysis for 16 genome-wide association study (GWAS)-based candidate loci, we confirmed significant associations of a genetic predisposition to lipoprotein concentrations in a childhood obesity study. Having two loci (rs10503669 at LPL and rs16940212 at LIPC) that showed the strongest association with blood levels of TG and HDL-C, we calculated a genetic risk score (GRS), representing the sum of the risk alleles. It has been observed that increasing GRS is significantly associated with decreased HDL-C (effect size, $-1.13{\pm}0.07$) compared to single nucleotide polymorphism combinations without two risk variants. In addition, a positive correlation was observed between allelic dosage score and risk allele (rs10503669 at LPL) on high TG levels (effect size, $10.89{\pm}0.84$). These two loci yielded consistent associations in our previous meta-analysis. Taken together, our findings demonstrate that the genetic architecture of circulating lipid levels (TG and HDL-C) overlap to a large extent in childhood as well as in adulthood. Post-GWAS functional characterization of these variants is further required to elucidate their pathophysiological roles and biological mechanisms.

The Correlation Between Sensory Processing Skills and Behavior Characteristics for Preschoolers (취학 전 아동의 감각처리능력에 따른 행동적 특성에 관한 연구)

  • Shin, Ji-Youn;Shin, Hea-Jeong;Cho, Hyun-Hee;Cha, Su-Min;Kim, Kyeong-Mi
    • The Journal of Korean Academy of Sensory Integration
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    • v.3 no.1
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    • pp.23-35
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    • 2005
  • Objectives : The purpose of the study is to understand the sensory processing capacity and behavioral characteristics for preschoolers without disabilities, and to investigate the relationship between sensory processing skills and the behavioral characteristics. Methods : Mothers of preschoolers without disabilities between ages of 4 and 6 who attend Y kindergarten which is located in Busan, H kindergarten in Suwon, S kindergarten in Gimhae was participated. Mothers filled out the questionnaire at home from 4th to 14th of January in 2004. We used SSP(short sensory profile) which was used by Kim, Mi-Sun in 2001 to understand the sensory processing skills. We also used Behavior During Testing Checklist find their places in Miller Assessment for preschoolers to understand behavior characteristics. The results were analyzed with SPSS 10.0. Results : 1. Total incidents in sensory processing were 157 out of 190. Among sub items of the sensory processing, the mark of lower energy/weak was highest with 4.39 point and the mark of taste/smell sensitivity was lowest with 3.60 point. Total incidents in behavioral characteristics were 20 out of 24. Among the area of behavioral characteristics, the mark of sensory responses/threshold area was highest with 2.73 point and the mark of social interaction area was lowest with 2.29 point. 2. Children's total sensory processing capacity correlates with behavioral characteristics, the more sensory processing capacity, the more behavioral characteristics. Sensory processing point correlates with behavioral characteristics points except this item, reaction to separation from caretaker. Conclusions : We hope that the children who have behavioral characteristics with difficulties in sensory processing skills can be distinguished on the basis of this studying. Also, as we find and relieve early stage of the symptoms, following study which can present based to facilitate children's social development and improve the learning ability.

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Molecular Cloning, Characterization, and Expression Analysis of Chicken Δ-6 Desaturase

  • Kang, Xiangtao;Bai, Yichun;Sun, Guirong;Huang, Yanqun;Chen, Qixin;Han, Ruili;Li, Guoxi;Li, Fadi
    • Asian-Australasian Journal of Animal Sciences
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    • v.23 no.1
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    • pp.116-121
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    • 2010
  • Long-chain polyunsaturated fatty acids (LC-PUFA) promote the development of brain and vision of the fetus, relieve inflammation, inhibit oral dysplasia of rumor cell, decrease the incidence of cardiovascular disease and regulate arrhythmia. ${\Delta}-6$ desaturase is the rate-limited enzyme in the desaturation process. This study reports the cloning, characterization and tissue expression of a ${\Delta}-6$ desaturase gene in the chicken. PCR primers were designed based on the predicted sequence of chicken ${\Delta}-6$ desaturase (accession number: XM421053) and used to isolate a cDNA fragment of 1,323 bp from chicken liver. Based on the 1,323 bp fragment an EST (BI390105) was obtained by BLAST. The EST and 5'nd of the 1,323 bp fragment were partially overlapped. Gene specific primers derived from the EST were used for amplification of the 5'nd. Another gene-specific primer derived from the 1,323 bp fragment was used for amplification of the 3'nd by 3'ACE. Then the three overlapping cDNA sequences obtained were assembled with DNAMAN software and a full-length ${\Delta}-6$ desaturase of 2,153 bp was obtained. The full-length cDNA contained an ORF of 1,335 bp with a 5'ntranslated region of 147 nucleotides followed by an ATG initiation codon. Stop codon TGA was at position 1,481-1,483 bp. The deduced amino acids shared an homology above 77% with bovine, mice, orangutan, rat and human. The protein sequence had three histidine-rich regions HDFGH (HisI region), HFQHH (HisII region) and HH (HisIII region), a cytochrome $b_{5}$-like domain containing a heme-binding motif and two transmembrane domains. Sequence analysis of the chicken genomic DNA revealed that the coding sequence of chicken ${\Delta}-6$ desaturase included 12 exons and 11 introns. Semi-quantitative RT-PCR showed that the ${\Delta}-6$ desaturase expression levels were in turn liver, spleen, pancreas, lung, breast muscle, heart, and abdominal fat. The expression of ${\Delta}-6$ desaturase in liver was significantly higher than that in breast muscle (p<0.01). The expression of ${\Delta}-6$ desaturase in lung was significantly higher than that in abdominal fat (p<0.01). This is the first clone of chicken ${\Delta}-6$ desaturase.

A Cross-sectional Study of Deficiency-Excess Pattern Identification with Blood Cytokines and Characteristics of Patients with Asthma (천식환자 허실변증별 혈액 싸이토카인 및 임상적 특성에 관한 단면적 연구)

  • Yu, Chang-hwan;Kang, Sung-woo;Hong, Sung-eun;Kim, Kwan-il;Lee, Beom-joon;Jung, Hee-jae
    • The Journal of Internal Korean Medicine
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    • v.41 no.4
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    • pp.583-598
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    • 2020
  • Objective: The aims of this study were to analyze deficiency-excess pattern identification and to compare the blood cytokines in patients with asthma. Methods: A total of 112 patients with asthma who met the inclusion and exclusion criteria were divided into deficiency syndrome and excess syndrome groups. Blood was examined for eotaxin, interleukin (IL)-1β, IL-4, IL-5, IL-6, IL-13, and tumor necrosis factor (TNF)-α. The Quality of Life Questionnaire for Adult Korean Asthmatics (QLQAKA), a Visual Analogue Scale (VAS), and heart rate variability (HRV) tests were administered to both groups. Results: Pattern identification divided the 112 patients into two categories: a deficiency syndrome group (N=52) and an excess syndrome group (N=60). Analysis of blood cytokines showed higher levels of IL-4, IL-5, and IL-13 in the deficient pattern than in the excess pattern group, but the difference was not statistically significant. Analysis of the HRV revealed a significantly higher mean value for the very-low-frequency (VLF) and high-frequency (HF) bands in the deficiency than in the excess syndrome group. The morbidity duration was longer in the deficiency than in the excess syndrome group, but the difference was not statistically significant. Analysis of the QLQAKA and VAS scores showed a negative correlation, whereas BMI and VAS showed a positive correlation. Conclusions: Levels of blood cytokines, including eotaxin, IL-1β, IL-4, IL-5, IL-6, IL-13, and TNF-α, did not differ statistically between the deficiency and excess syndrome groups. The development of a more accurate asthma-specific pattern identification tool would be useful in asthma control.

The Groping of the Possibility about Convergent Gifted Education (융합형 영재교육의 가능성 모색)

  • Choi, Tae-Ho;Park, Myeong-Ok
    • Journal of Gifted/Talented Education
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    • v.21 no.3
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    • pp.683-702
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    • 2011
  • The purpose of the study is to explore the justification and the possibility of convertgent gifted education through science and arts. Because the nature of art make up the base of each discipline and the creative talents in the heart of gifted education can be achieved through arts education. In order to achieve the purpose of these studies, three aspects have been explored. First, the relevance between the ontological nature of arts and gifted education discussed in philosophical and aesthetic point of view was explored. Second, the practical possibility was confirmed through an analysis of previous studies about the science and arts for gifted education. Finally, by looking at today's social and cultural phenomenon and future talent, it was argued that the development of convergent talent must be needed in the future. This paper will be a springboard for follow-up study to prove the feasibility of convergent gifted education through identifying factors in creative thinking process of gifted students in science and arts. And views of convergent gifted education with artistic will be expanded further and newly recognized. In addition to, it is expected that this study will help the establishment and operation Arts Gifted Education Institute in University and Science and Arts Gifted School.