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Regional Gray Matter Volume Reduction Associated with Major Depressive Disorder: A Voxel-Based Morphometry

  • Tae, Woo-Suk
    • Investigative Magnetic Resonance Imaging
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    • v.19 no.1
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    • pp.10-18
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    • 2015
  • Background and Purpose: The association between the low emotional regulation and the brain structural change of major depressive disorder (MDD) has been proposed, but the voxel-based morphometry (VBM) studies on female MDD are rare. The purpose of the present study was to show the regional volume changes of gray matter (GM) in female patients with MDD by optimized VBM. Methods: To control subjects homogeneity, twenty female MDD patients and age, sex matched 21 normal controls were included for the VBM analysis. To identify the change of regional gray matter volume (GMV), the optimized VBM was performed with T1 MRIs. The amounts of gray/white matter and intracranial cavity volumes (ICV) were measured. The analysis of covariance (ANCOVA) and partial correlation analyses covariate with age and ICV were applied for VBM. Results: The age and ICV distributions were similar between the two groups. In the ANCOVA, the total GMV of MDD was smaller than that of normal controls. In the VBM, regional GMV was relatively decreased in the limbic system (amygdalae, ambient gyri, hippocampi heads, subiculum, posterior parahippocampal gyri, pulvinar nuclei, dorsal posterior cingulate gyri, and left pregenual cingulate gyrus). The lingual gyri, short insular gyri, right fusiform gyrus, and right inferior frontal gyrus were also showed decreased regional GMV. Conclusion: The results of this study indicate that the female MDD is mainly associated with the structural deficits of the limbic system and limbic system related cortices, which were known to the center of emotions.

Association between CYP1A1 Expression and Childhood Asthma (CYP1A1 유전자발현과 소아천식의 상관)

  • Yang Mihi
    • Environmental Analysis Health and Toxicology
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    • v.20 no.3 s.50
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    • pp.209-213
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    • 2005
  • Due to steady increase of childhood asthma, exposure to air toxics including PAHs have been thought as an etiology for the asthma. PAHs -involvement in airway inflammation, such as IgE production, is the potential mechanism of the PAHs-induced asthma. Cytochrome P450s (CYPs), particularly CYP1A1 is known enzyme to metabolite PAHs and to be induced by PAHs. The CYP1A1 expression has been emphasized as an biomarker for PAHs - exposure. The present study was performed to clarify the etiology of childhood asthma with PAHs-exposure using mRNA expression of CYP1A1 . The study Objects were Korean children who were asthma patients (cases) or other hospital controls (N=20; age,3 $\~$ 16; boys,56$\%$). As result, we detected expression of the CYP1A1 in all peripheral blood specimens which were collected from the subjects. Moreover, we found approx. 300 fold-higher expression of the CYP1A1 in the cases than that in the controls (p(<)0.01). When we considered age which was related to Asthma, the above significant trend was somewhat diluted, however, the relation between asthma and the Cypih i expression waL stronger than that between asthma and age (chi square,7.99 vs. 3.34). Therefore, our study supports that PAHs induce or worse childhood asthma and suggests application of expression of the CYP1A1 as an initiation or progress biomarker for PAHs - induced childhood asthma.

Terrestrial Broadcasting Content Distribution Strategy in the Multi Platform Environment (멀티 플랫폼 시대 지상파 방송 콘텐츠 유통 전략 방안)

  • Chung, Dong Hun
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.8 no.2
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    • pp.117-130
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    • 2012
  • Due to the development of network and device, it is called mobile age that boosts various distribution routes of multi-media content and it constructs a new digital content consumption trend. N-screen is one of the new-introduced examples in the digital age and broadcasting industry believes it as a crisis and challenge as well. It becomes a ubiquitous multi-media environment that people watch multi-media content everywhere and any time they want to and competition happens beyond the boundaries such as network industry, terminal industry, pay TV market, traditional terrestrial TV, etc. And then how should the broadcasting service prepare for the N-screen business? The present research proposes a few terrestial broadcasting content strategies in the multi platform environment. First, instead of N-screen, it proposes multi platform, especially One Source Multi Platform(OSMP). Second, so-called 'Integrated Terrestrial Broadcasting OSMP Alliance(IBPA)' must be founded. Third, IBPA should support multi-tasking UX for viewers to have rich experience. Last, it becomes more important and necessary to support local terrestrial broadcasting service for public service in the multi platform age.

Differential Expression of Multiple Connexins in Rat Corpus and Cauda Epididymis at Various Postnatal Stages

  • Lee, Ki-Ho
    • Journal of Animal Science and Technology
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    • v.55 no.6
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    • pp.521-530
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    • 2013
  • Direct cell-cell communication via the transfer of small molecules between neighboring cells in tissue is accomplished by gap junctions composed of various connexins (Cxs). Proper postnatal development of the epididymis is important for acquisition of male reproduction. The epididymal epithelium is composed of several cell types, and some of these cells are connected by gap junctions. The present study was conducted to determine the presence of Cx transcripts in the corpus and cauda epididymis. In addition, transcriptional changes of Cxs expressed during different postnatal stages were examined by real-time PCR analysis. In both epididymal regions, the same nine Cx transcripts of thirteen Cxs tested were detected. In the corpus epididymis, the highest levels of Cxs31.1 and 37 transcripts were observed at 45 days of age, and amounts of Cxs26, 30.3, and 32 transcripts increased with age and subsequently decreased in the elderly. Expression of Cx31 was greatly increased in the adult and elder stages, while Cxs40, 43, and 45 were abundant in the early postnatal stages. In the cauda epididymis, expression of Cxs26, 30.3, 31.1, 37, and 40 reached the highest levels at 5 months of age. The levels of Cxs31 and 32 mRNAs fluctuated throughout the postnatal period. The amounts of Cxs43 and 45 transcripts were more abundant during the late neonatal and prepubertal ages than later ages. These findings suggest that regional specification of the epididymis is partly regulated by differential expression of Cx genes during the postnatal developmental period.

A Serological Study on Toxoplasma gondii Infection Among People in South of Tehran, Iran

  • Salahi-Moghaddam, Abdoreza;Hafizi, Abbas
    • Parasites, Hosts and Diseases
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    • v.47 no.1
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    • pp.61-63
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    • 2009
  • Although Toxoplasma gondii infection generally shows subclinical courses in adults, it may have severe pathologic effects on the fetus. For a survey of toxoplasmosis in Shahr-e-Rey area, south of Tehran, Iran, we conducted a serological study on 1,187 general populations using indirect fluorescent antibody (IFA) test. In this cross sectional study, cases were selected randomly by a local primary health care (PHC) system. Blood samples were collected in microcapillary tubes and sera were examined by IFA after centrifugation. It has been shown that 68.3% of cases in all age groups had IFA titer of 1:10 and higher, which we consider as positive cases, and the rate for 1:400 or over was 30.2%. There was meaningful correlation between anti-Toxoplasma antibody titers and age, sex, and occupation of subjected people (P < 0.05%). The incidence was higher in females and highest in the children age group (10-14 years old). The present study demonstrates high prevalence of Toxoplasma infection among the people in south of Tehran, Iran.

The Effect of Obesity, Blood Pressure and Lifestyle on Lipid indices and Blood pressure in Men of Age 40s (40대 남성에서 비만, 혈압, 생활양식이 지질지표 및 혈압에 미치는 영향)

  • Kim, Wan-Soo
    • Journal of the Korean Society of Physical Medicine
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    • v.8 no.2
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    • pp.239-243
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    • 2013
  • PURPOSE: The purpose of present study was to investigate effects of obesity, blood pressure and life style on lipid indices and blood pressure in men of age 40s. METHODS: One hundred forty five subjects in men of age 40s were participated in this study. All participants were taken physical examination, lifestyle survey and laboratory test. According to examination, participants were divided into two group in four categories ; obesity and normal group, hypertension and normal group, smokers and non-smokers, and drinkers and non-drinkers. The low density lipoprotein cholesterol (LDL), high density lipoprotein cholesterol (HDL), total cholesterol (TC), triglyceride (TG), systolic blood pressure (SBP), diastolic blood pressure (DBP) were analyzed by independent t-test for comparison between two groups. RESULTS: The values of LDL, TC, SBP, DBP were higher and HDL was lower in obesity than in normal group (p<.05). The values of LDL, TC, SBP, DBP were higher in hypertension group than in normal group (p<.05). The values of TG was higher and HDL was lower in smokers than in non-smokers (p<.05). There's no significant differences between drinkers and non-drinkers (p>.05). CONCLUSION: It can be seen that obesity and blood pressure were more relative risk factors than smoking and alcohol indices in cardiovascular diseases.

Studies on Relation of Heartworm and Eosinophils in Blood of Jindo Dogs (진도견 혈액내 기생충과 호산구 관계 조사)

  • 김자숙;이태욱
    • Korean Journal of Veterinary Service
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    • v.13 no.1
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    • pp.80-89
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    • 1990
  • The present study was conducted in order to get the relationship of heartworm, Dirofilaria immitis and eosinophils in blood of Jindo dogs. Blood samples were taken from 141( man 31, womam 110) of yellow, 44 ( man 17, woman27) of white Jindo dogs in Jindo area. The results obtained in this study were summarized as follows : 1. There were no significant differences of the hematological values in comparison with others reported values, but the mean corpuscular hemoglobin concentration and the number of eosinophils were high in comparison with other reported values. 2. The mean values of total white blood cell count(P<0.05), neutrophil(P<0.05) and monocyte(P< 0.05) were that the yellow dogs and a tendency toward fisher values than the white dogs, but no significant differences were observed. 3. Age-related differences were detected for the total erythrocyte count(P<0.05), hemoglobin content (P<0.001), PCV(P<0.001) and the number of eosinophils(P<0.001). 4. The direct and indirect eosinophil counts were increased with age, there were no significant differences of the values between two groups. 5. Dirofilaria immitis was found in 34(18.4%), increased with age and were relatively significant differences in areas of the 185 Jindo dogs. 6. Survey for hematological values of Dirofilaria immitis infected dogs with direct and indirect method, mean values of eosinophil were 2,788/ ${\mu}l,$ 3,021/ ${\mu}$l, respectively. They showed that eosinophil had a tendency toward higher values than others, but others were no significant differences.

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Reproducibility of Measures of Lumbar Spine, Hip and Whole Body BMD according to Longitudinal Physical Activity in Older Athletes (노인 운동가에 있어 장기적인 운동에 따른 척추, 힙과 신체 총 골밀도 감소에 관한 재현성)

  • Jung, Youn-Soo
    • Journal of muscle and joint health
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    • v.8 no.2
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    • pp.278-286
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    • 2001
  • With the aging of society a great deal of interest is being placed on the value of longitudinal data in evaluating physiological losses. We present data on test-one/test-two reliability and reproducibility for measures of training, bone density from a longitudinal study of master athletes. Fifty-two males (mean age at test $1=58.2{\pm}9.8\;years$) and thirty-two females ($54.4{\pm}8.8\;years$) were selected from the study population. Bone mineral density was determined using DEXA (Hologic 1500). The characteristics of the subjects are presented below as $means\;{\pm}\;S.D$. The data was imported into the Statistical Package for the Social Science (SPSS 9.0, Chicago, IL). Paired t-tests were performed between visit 1 and visit 2 in subjects. Pearson correlations were performed. The results of this study indicate the measures of training history, body mass and bone density are reasonably stable and reproducible. We conclude that body composition and bone density parameters are stable and reproducible over time in active older subjects. Physiologic measures in master athletes are fairly stable, and reproducible over time Longitudinal studies investigating age-related changes in master athletes need to be conducted on a time schedule of greater than two years.

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Complex Shopping Behavior of Economic Consumers - Focused on Shopping Orientation and Store Selection Criteria - (경제적 의복 소비자의 복합적 쇼핑 행동 연구 - 쇼핑 성향 및 점포 선택 기준을 중심으로 -)

  • Kim, Sae-Hee
    • Fashion & Textile Research Journal
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    • v.12 no.5
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    • pp.683-693
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    • 2010
  • The aim of the present study is to investigate the complex shopping behavior of clothing consumer groups classified by the level of economic shopping orientation. Using a self-administered questionnaire, 260 respondents rated their economic shopping orientation, hedonic shopping orientation, convenient shopping orientation, store selection criteria, clothing interest, gender, age, and other demographic characteristics. A total of 248 questionnaires were analyzed. The results are as follows. First, economic consumers showed more hedonic and convenient shopping orientation than uneconomic consumers. In addition, economic consumers valued various store selection criteria. These implied that economic consumers show more complex clothing shopping behavior than uneconomic consumers. Second, as the result of comparing complex shopping behavior of economic consumers and uneconomic consumers by their characteristics such as clothing interest, gender, and age, economic consumers were found to show more complex shopping behavior than uneconomic consumers regardless of the consumer characteristics. Among them, economic consumers with higher clothing interest or in adult age particularly showed more complex shopping behavior. Furthermore, economic consumers with different consumer characteristics showed quite different aspects in their complex shopping behavior. Third, uneconomic consumers showed relatively simple, impulsive, and price-apathetic shopping behavior.

A Case Study focused on Columbus's Sailing - A Study on the European Expansion in the later Middle Age - (콜럼부스의 대서양 항해 -항해의 경과와 역사적 의의를 중심으로-)

  • 김성준
    • Journal of the Korean Institute of Navigation
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    • v.21 no.1
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    • pp.33-55
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    • 1997
  • The European expansion in the later middle age, as Adam Smith stated, influenced greatly on development of the world history. In the various events of the European expansion the discovery of the New World by Christopher Columbus is very important because the effect of the discovery of the New World have still continued to the present. I have interested to find out the reason why the western civilization has seized on the hegemony of the world over other civilizations. As many scholars pointed out, the most distinguished difference between the western civilization and other civilizations is that the western civilization was maritime-oriented, while other civilization were continental-oriented. So I set up the maritime histoy on the theme of my study in order to ruminate upon meaning of the se-power that is one of the motivating forces to drive histoy. Maritime history is not simply about that is maritime affairs, but a branch of history that inquires into inter-relations between maritime affairs and inland affairs. Maritime history constitutes of history of naval war, history of shipping and history of marine development. As above reasons, I have interested the European expansion in the later middle age that maritime activity was the most vigorous in the history. This is a case study to compose maritime history.

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