• 한국보건간호학회지
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• 제7권1호
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• pp.67-79
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• 1993

This study was designed to identify the general health conditions and high risk factors of the male & female environmental workers. Thereby. the results of this study were to provide useful data as a contribution to knowledge for health protection and promotion. The data used for this study were environmental workers' physical examination cards; the male environmental workers were 52 persons. and the female environmental workers 52 persons. The data were analyzed by descriptive statistics, t-test, Pearson correlation, and distinction analysis, using the SPSS program. The results of this study can be summarized as follows; 1. Thers was a significant statistical difference between the two groups as to height. eyesight. serum GPT, hematocrit. The variables having little difference between two groups were weight. systolic blood pressure. total cholesterol. creatinine. 2. The rate of revealed in significant health examination was extra-health discrimination rate $28.8\%$, significant result of illness rate $12.5\%$. injury-inflicting rate $7\%$. second-time urine test $5.7\%$. antigen positive 3.8%. hearing impairment $2.8\%$, urine protein positive $1.9\%$. and urine sugar positive $1.9%$. 3. The workers diagnosed as extra-health discrimination were 30 persons or $28.8\%$. There was a difference between two groups on the prevalence. In the male environmental workers. ten times live problems and six times pulmonary tuberculosis and three times circulatory problems were revealed the higher than thoes of the female environmental workers. 4. In the male environmental workers, the relationship between age and systolic blood pressure revealed a significant correlation (r=0.22. p<0.05). In the female environmental workers. there was a negative correlation between age and weight (r= 0.25, p<0.05). the relationship between age and total cholesterol correlated positively (r=0.30, p<'0.05). 5. In the male environmental workers, there was a negative correlation between working career and creatinine(r=-0. 22, p<0.05) In the female environmental workers, there was a positive correlation between working career and total cholesterol (r= 0.58, p<0.01). 6. There were significant differences on working career and creatinine accdording to the male and female environmental workers who had any problems through x-ray inspection. 7. There were significant differences on height. eyesight. serum GPT according to the male and female environmental workers who were diagnosed as extra-health discrimination. 8. The female environmental workers who were diagnosed as 'care' were positively correlated with weight (r= 0.26. p<0.05)' and systolic blood pressure (r= 0.30. p<0. 05). on the other hand. the left and right eyesight correlated nagatively(r=-0.15. r=-0.33. p<0.01). 9. The most influential variables on the male and female environmental workers' health condition were working career, height. and weight. And these three variables could help determine the two groups at the level of 81. 8 percentage.

• Asian-Australasian Journal of Animal Sciences
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• 제29권7호
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• pp.987-997
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• 2016

The objective of the study was to compare the carcass characteristics, meat quality, and blood parameters of slow and fast grown female broiler chickens fed in organic or conventional production system. The two genotypes tested were medium slow-growing chickens (SG, Hubbard Red JA) and commercial fast-growing chickens (FG, Ross 308). Both genotypes (each represented by 400 chickens) were divided into two sub-groups fed either organic (O) or conventional (C) systems. Chickens of each genotype and system were raised in a semi environmentally controlled poultry house until 21 d of age and were assigned to 5 pens of 40 chickens each. Then, O system chickens were transferred into an open-side poultry house with an outdoor run. At 81 d of age, 10 female chickens from each genotype and from each production system (n = 40) were randomly chosen to provide material for analysis, and were weighed and brought to the slaughterhouse to assess carcass characteristics and meat quality. The blood parameters were determined by using 5 female chickens from each genotype and from each production system (n = 20). FG had the higher live weight, along with carcass, breast, and thigh-drumstick weights compared to SG (p<0.05). FG had the higher breast yield, whereas SG had the higher thigh-drumstick yield (p<0.05). The O system resulted in a higher amount of abdominal fat (p<0.05). In addition, the O system values were higher for dry matter, crude ash, crude protein, and $pH^{15}$ values in breast meat, and for crude ash, crude protein, and $pH^{15}$ values in drumstick meat (p<0.05). In addition, total saturated fatty acids, total mono-unsaturated fatty acids, and total omega 3 were significantly higher in the O system than in the C system. Thus, the O system showed a positive advantage compared to the C system regarding female chicken meat quality, primarily within the ash, protein, and total omega 3 fatty acid profiles. In conclusion, the present study indicated that the main factor affecting the carcass characteristics of female chickens was genotype, whereas the organic system contributed to enhanced meat quality. These findings provide a better understanding of the relative roles of genotype and production systems in female broiler characteristics, and might aid producers in designing their facilities to optimize yield and quality while maintaining acceptable animal welfare standards.

• 대한임상검사과학회지
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• 제47권1호
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• pp.6-10
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• 2015

Photodynamic therapy (PDT) apply photosensitizers and light. The purpose of this study was to evaluate the in vitro efficacy of PDT using blue LED (light emitting diode) with photofrin and radachlorin for Propionibacterium acnes. The colony forming units method was used to assess the antibacterial activity. Suspension (1 mL) containing P. acnes at $1{\times}10^5CFU/mL$ were prepared and then 2 fold serial diluted to $12.5{\mu}g/mL$ from $50{\mu}g/mL$ concentration of photofrin and radachlorin. After 60 minutes incubation, light was irradiated for 10 to 30 minutes using the following light source of wavelength 460 nm, each energy density 36, 72 and $108J/cm^2$. Bacterial growth was evaluated after 72 hours incubation in a Phenylethanol Blood Agar (PEBA) culture. In addition, flow cytometric analysis were performed to measure the live cell after PDT. Also transmission electron microscopy (TEM) was employed to evaluate the effect of pathogens by PDT. The PDT Group was perfectly killed to all kind of photosensitizers dose of $12.5{\mu}g/mL$ with irradiation of 10 minutes. Also other Groups were killed to all kind of photosensitizers dose of $6.25{\mu}g/mL$ with irradiation time of 20 and 30 minutes. The flow cytometry showed a lower number of viable bacteria in the PDT group compared to the control group. The images of the TEM results were showed in cytoplasmic membrane damage and partially deformed to cell morphologies. These results suggest that radachlorin and photofrin combine blue LED PDT can be effectively treated when was proved treatment for acnes therapy.

• Asian-Australasian Journal of Animal Sciences
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• 제16권9호
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• pp.1297-1302
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• 2003

To determine whether the feeding of different species of hay affects the dry-matter intake and the serum cortisol level of sheep, 6 non-pregnant, non-lactating ewes were offered alfalfa (Medicago sativa) hay (Al), oats (Avena sativa) hay (Ot) and perennial ryegrass (Lolium perenne) hay (Pr) under 6 kinds of treatment including 1) change from Al to Ot, 2) Al to Pr, 3) Ot to Al, 4) Ot to Pr, 5) Pr to Al, and 6) Pr to Ot. The experimental design was a 6${\times}$6 Latin square with a 14 day period of which 9 days were a preliminary period and 5 days as a digestion trial period. The change in hay feeding was done abruptly on the first day of each period without an adaptation period. The blood from the jugular vein was collected on the first, third and the last day of each period through a sterile catheter for the analysis of cortisol. The dry-matter intake was recorded daily throughout the period. The mean daily intake of dry matter (DM, g/kg live weight) was significantly different among the 3 species of hay (Al>Ot>Pr; p<0.05). The digestibility of DM for Al and Ot was the same, but that for Pr was significantly lower than Al and Ot (p<0.05). The mean serum cortisol levels were significantly different among the hays (p<0.05). The level for Pr was the highest and that for Al was the lowest. The abrupt change of hay feeding of 6 treatments produced a significant change in the serum cortisol levels. The DM intake was inversely related to the change of the cortisol level. It is suggested that the animal' intake response to different species of hay may be partly motivated by the psychological feelings toward the hay offered.

• Reproductive and Developmental Biology
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• 제30권1호
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• pp.27-34
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• 2006

This study was conducted to compare the reproduction ability of the wild type boar and recombinant human erythropoietin (hEPO) transgenic boar semen. Ejaculated boar semen was analyzed by flow cytometry, Elisa and IVF methods. In experiment 1, flow cytometric analysis showed that the live sperm ratio of transgenic boar sperm significantly lower (P<0.05) than that of wild type boar after incubation at 20, 22, 24 and 26 hr. In experiment 2, the presence and levels of various cytokines (IL-6, IL-10 and $TNF-{\alpha}$) to related animal reproduction in the seminal and blood plasma were examined using specific enzyme immunoassay. There was no significant difference between both groups. In experiment 3, the fertilizing capacity and developmental ability of both boar sperm were compared. The transgenic boar sperm had a significantly low capacity of penetration, sperm-zona binding, embryo development, and blastocyst formation compared to wild type sperm (P<0.05). These results suggest that transgenic boar sperm harboring hEPO gene has low sperm viability than wild type boar, and it is a reason to decrease of fertility and litter size.

• 한국심리학회지 : 문화 및 사회문제
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• 제10권1호
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• pp.107-145
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• 2004

이 연구에서는 한국의 일탈 청소년들이 갖고 있는 토착심리를 탐구하고자 하였다. 이를 위해 보호관찰 청소년과 일반 청소년의 부모자녀관계에 대한 비교를 중심으로 분석하였다. 최종 분석대상은 1,038명이었으며, 보호관찰 청소년 268명과 그들의 부모, 고등학생 251명과 그들의 부모로 구성되었다. 보호관찰 청소년과 일반 청소년에 대한 질적 분석 결과는 다음과 같다. 첫째, 청소년 집단별 부모관계에 대한 사회적 표상은, 보호관찰 청소년과 일반 청소년 모두 이 세상에서 가장 믿고 의지할 수 있는 사람으로서 부모를 가장 많이 지적하였으며, 믿고 신뢰하는 이유로서 혈연관계가 가장 중요하였다. 둘째, 부모 집단별 자녀관계에 대한 사회적 표상은, 자녀가 보호관찰을 받는 일탈 청소년이든 학교를 잘 다니고 있든, 모두 혈연관계로 맺어진 자녀이기 때문에 무조건 믿는다는 생각을 과반수 의 부모가 하였다. 또한 두 부모집단 모두 자녀가 성실한 태도를 갖고 원만한 인간관계를 유지하도록 기대하는 점에서 공통점이 있었다. 그러나 자녀 양육과정에서 겪는 어려움의 내용에서는 질적으로 차이가 있었는데, 보호관찰 청소년 부모는 자녀의 불순종을, 일반 청소년 부모는 자녀의 성적이나 대학진학 등 학업문제와 자녀교육을 뒷받침해야 하는 교육비 부담을 가장 많이 지적하였다. 두 집단에 대한 양적 자료를 분석 결과는 다음과 같다. 첫째, 가정의 구조적 환경에서 차이가 있었는데, 보호관찰 청소년은 부모의 사회경제적지위가 낮았으며, 친부모가 아니거나, 부모와 동거하지 않는 경우가 많았다. 그리고 이러한 환경에서 가출경험이 많았다. 둘째, 청소년이 지각한 부모와의 관계에서 차이가 있었는데, 보호관찰 청소년이 부모에 대한 신뢰가 낮았고, 부모의 양육태도를 더욱 적대적으로 지각하였다. 셋째, 부모가 지각한 자녀와의 관계에서도 차이가 있었는데, 보호관찰 청소년의 부모가 자녀에 대해 더욱 낮은 신뢰를 보였다. 자녀 양육태도에서도 더욱 갈등을 느끼고, 적대적이었으며, 자녀 때문에 희생되었다고 생각하는 경향이 높았다. 이러한 결과에 기초하여, 한국 일탈 청소년의 토착심리와 관련된 다양한 논의가 시도되었다.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제4권2호
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• pp.161-166
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• 2001

목적: 침대를 함께 사용하고 밀집된 공간에서 생활하는 것이 H. pylori 감염을 일으키는 의미 있는 위험 인자로 알려져 있다. 저자들은 훈련을 위해 합숙해야 하는 청소년 운동선수들에서 H. pylori 감염의 유병률을 조사하고 이를 일반 학생들과 비교해 보고자 하였다. 방법: 일반 고등학교 440명(남학생 228명과 여학생 212명)과 체육 고등학교의 운동 선수 220명(남학생 148명과 여학생 72명)을 대상으로 정맥 채혈과 설문지를 통한 조사가 이루어졌다. 첫째, 일반 학생과 운동 선수들의 H. pylori 감염의 유병률을 비교하기 위해 H. pylor에 대한 혈청 IgG 항체를 검사하였다. 둘째, H. pylori 감염에 영향을 미칠수 있는 위험 인자를 비교하기 위해 두 군간의 섭취하는 음식에 대한 영양 분석과 사회 경제적인 상태에 대한 설문지 조사가 시행되었다. 결과: 1) 육상 선수들의 H. pylori 감염의 유병률(43.2%)이 대조군(22.7%)에 비해 의미있게 높았다. 2) 두 군간에 영양섭취 및 Hollingshead 지표, 주택소유 여부, 혼잡지표 등의 사회경제적인 상태의 의미있는 차이는 없었다. 3) 다변량 회귀분석상 학교의 차이와 혼잡지표가 H. pylori 감염에 영향을 주는 유의한 인자였다. 결론: 훈련 캠프의 합숙생활이 청소년 운동 선수들에서 H. pylori 감염을 일으키는 의미있는 위험 인자가 될 수 있다.

• Journal of Korean Dental Science
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• 제16권2호
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• pp.128-148
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• 2023

Dementia is an umbrella term that describes the loss of thinking, memory, attention, logical reasoning, and other mental abilities to the extent that it interferes with the activities of daily living. More than 50 million individuals worldwide live with dementia, which is expected to increase to 131 million by 2050. Recent research has shown that poor oral health increases the risk of dementia, while oral health declines with cognitive decline. In this narrative review, the literature was based on the "hypothesis" that dementia and oral health have a close relationship, and appropriate oral health and occlusal rehabilitation treatment can improve the quality of life of patients with dementia and prevent progression. We conducted a literature search in PubMed and Google Scholar databases, using the search terms "dementia," "major neurocognitive disorder," "dentition," "occlusion," "tooth loss," "dental prosthesis," "dental implant," and "occlusal rehabilitation" in the title field over the past 30 years. A total of 131 studies that scientifically addressed dementia, oral health, and/or oral rehabilitation were included. In a meta-analysis, the random effect model demonstrated significant tooth loss increasing the dementia risk 3.64-fold (pooled odds ratio=3.64, 95% confidence interval [2.50~5.32], P-value=0.0348). Tooth loss can be an important indicator of cognitive function decline. As the number of missing teeth increases, the risk of dementia increases. Loss of teeth can lead to a decrease in the ascending information to the brain and reduced masticatory ability, cerebral blood flow, and psychological atrophy. Oral microbiome dysbiosis and migration of key bacterial species to the brain can also cause dementia. Additionally, inflammation in the oral cavity affects the inflammatory response of the brain and the complete body. Conversely, proper oral hygiene management, the placement of dental implants or prostheses to replace lost teeth, and the restoration of masticatory function can inhibit symptom progression in patients with dementia. Therefore, improving oral health can prevent dementia progression and improve the quality of life of patients.

• 한국산학기술학회논문지
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• 제11권9호
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• pp.3366-3374
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• 2010

본 연구는 일개 지역의 노인을 대상으로 고혈압과 당뇨병 유무에 따른 건강관리 및 인식 패턴을 파악하고자 하였다. 고혈압, 당뇨병 유무에 다른 분석 중 군간 유의하게 나타난 생존변수 성별, 결혼상태, 직업, 건강관리방법, 연령대를 기초로 만성질환에 따른 패턴을 CART로 연구하였다. 직업군 패턴 결과 농업 직업군에서는 당뇨병이 가장 높은 빈도를 나타냈으나 어업, 공무원 직업군에서는 정상군이 가장 높은 빈도를 나타났다. 직업군이 상업 또는 기타에서는 연령에 80, 90대로 점차 갈수록 당뇨병의 발생 빈도는 높아지는 것으로 나타났다. 최근 들어 노인 인구가 증가하고 있는 현실에서 노인들의 질병과 활동제한으로 건강에 문제가 발생하고 있는 시점에서 생활기능의 증가를 통하여 노인의 삶을 높이고, 노인들의 삶의 질적인 면까지 고려하여 건강하고 만족하는 생활을 하면서 여생을 보낼 수 있도록 하여야 할 것이다.

• Asian-Australasian Journal of Animal Sciences
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• 제20권7호
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• pp.1067-1075
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• 2007

Twenty eight 3-4 month old castrated Black Bengal kids (Capra hircus) were used to determine the effects of source and level of dietary copper (Cu) concentration on their performance and nutrient utilization. Cu was supplemented (0, 10, 20 and 30 mg/kg diet DM) as copper sulfate ($CuSO_4$, $5H_2O$) or copper proteinate (Cu-P). Kids were fed a basal diet containing maize (19.5%), soybean (17.0%), deoiled rice bran (56.5%), molasses (4.0%), di-calcium phosphate and salt (1.0% each) and mineral and vitamin mixture (0.5% each) supplements at 3.5% of body weight to meet NRC (1981) requirements for protein, energy, macro minerals and micro minerals, excluding Cu. The basal diet contained 5.7 mg Cu/kg, 122.5 mg Fe/kg, 110 mg Zn/kg, 0.26 mg Mo/kg and 0.32% S. $CuSO_4$ or Cu-P was added to the basal diet at the rate of 10, 20 and 30 mg/kg. Kids were housed in a well ventilated shed with facilities for individual feeding in aluminum plated metabolic cages. Blood samples were collected from the jugular vein on d 0, 30, 60 and 90 to determine hemoglobin (Hb), packed cell volume (PCV), total erythrocyte count (TEC), total leukocyte count (TLC) and serum enzymes (alkaline phosphatase, alanine transferase and aspertate transferase). A metabolism trial of 6 days duration was conducted after 90 days of experimental feeding. Statistical analysis revealed that source and level of Cu supplementation improved live weight gain (p<0.04) and average daily gain (p<0.01). No significant contribution of source and level of Cu to alter serum serum enzymes was evident. Goats fed Cu-P tended to have higher Hb, PCV and TEC than with $CuSO_4$ supplementation. Cu-P increased digestibility of ether extract (EE, p<0.02) and crude fiber (p<0.05) and showed an increasing trend (p<0.09) for digested crude protein (CP) and crude fiber (CF). Supplemental dose of Cu linearly improved (p<0.02) digestibilities of dry matter (DM), organic matter (OM), EE and nitrogen free extract (NFE). Though the absorption of nitrogen (N) was not affected (p>0.10) by both source and dose of Cu, N retention was affected (p<0.04) and there was a significant $Source{\times}Dose$ interaction (p<0.05). Final body weight (BW) was not influenced (p>0.10) by the source of Cu but increasing dose of Cu increased (p<0.04) the BW of kids. TDN intake (g/kg $W^{0.75}$) was higher (p<0.05) with the increased dose of Cu and there was a significant $Source{\times}Dose$ interaction. It was concluded that supplementation of Cu from different sources and varying dose level in a concentrate based diet may improve performance, nutrient utilization and plane of nutrition in castrated Black Bengal kids. The effects on performance and nutrient utilization are more pronounced with Cu-P than $CuSO_4$ supplementation. Higher dose of Cu showed better result than lower dose.