• Natural Product Sciences
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• 제19권1호
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• pp.36-48
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• 2013

The aim of the present study was to investigate the effects of several fractions obtained from methylene chloride ($CH_2Cl_2$) extract of self-fermented pine needle (SFPNE) on the acetylcholine (ACh)-evoked CA release from the isolated perfused model of the rat adrenal medulla and to establish the mechanism of the most active fraction (Fr.)-induced inhibitory action on the CA release. We obtained 6 fractions from $CH_2Cl_2$ extract of self-fermented pine needle. For the ACh (5.32 mM)-evoked CA release, the following rank order of inhibitory potency was obtained: Fr.4-5 > Fr.8-11 ${\gg}$ Fr.3 > Fr.6 = Fr.7 > Fr.1-2. Fr. 4 - 5 (60 ${\mu}g/mL$) perfused into an adrenal vein for 90 min produced relatively time-dependent inhibition of the CA secretory responses to ACh (5.32 mM), DMPP (100 ${\mu}M$), McN-A-343 (100 ${\mu}M$) and high $K^+$ (56 mM). Fr. 4 - 5 itself did not affect basal CA secretion. Also, in the presence of Fr. 4 - 5 (60 ${\mu}g/mL$), the CA secretory responses to angiotensin II (AngII, 0.1 ${\mu}M$), veratridine (50 ${\mu}M$), Bay-K-8644 (10 ${\mu}M$), and cyclopiazonic acid (10 ${\mu}M$) were significantly reduced, respectively. In the simultaneous presence of Fr. 4 - 5 (60 ${\mu}g/mL$) and L-NAME (30 ${\mu}M$), the inhibitory responses of Fr. 4 - 5 on the CA secretion evoked by ACh, DMPP, high $K^+$, AngII, Bay-K-8644 and veratridine were considerably recovered to the extent of the corresponding control secretion compared with that of Fr. 4 - 5-treatment alone. The level of NO released from adrenal medulla after the treatment of Fr. 4 - 5 (60 ${\mu}g/mL$) was greatly elevated compared with the basal level. Taken together, these results demonstrate that Fr. 4 - 5 inhibits the CA secretion from the isolated perfused rat adrenal medulla evoked by stimulation of cholinergic receptors as well as by direct membrane-depolarization. It seems that this inhibitory effect of Fr. 4 - 5 is mediated by blocking the influx of $Ca^{2+}$ and $Na^+$ into the adrenomedullary chromaffin cells as well as by inhibition of $Ca^{2+}$ release from the cytoplasmic calcium store, which is evoked at least partly through the increased NO production due to the activation of NO synthase. Based on these results, it is also thought that Fr. 4 - 5 isolated from $CH_2Cl_2$ extract of pine needle may contain beneficial antihypertensive components to prevent or treat hypertension.

• 대한수의학회지
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• 제44권2호
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• pp.207-215
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• 2004

It is well known that the hypothalamic-pituitary-adrenocortical (HPA) axis is under the negative feedback control of adrenal corticosteroids. Previous studies have suggested that glucocorticoids can regulate neuroendocrine cells in the paraventricular nucleus (PVN) by modulating catecholaminergic transmission, a major excitatory modulator of the HPA axis at the hypothalamic level. But, the effects of corticosteroids on the expression of adrenoceptor subtypes are not fully understood. In this work, we examined mRNA levels of six adrenoceptor subtypes (${\alpha}_{1A}$, ${\alpha}_{1B}$, ${\alpha}_{2A}$, ${\alpha}_{2B}$, ${\beta}_1$ and ${\beta}_2$) in the PVN of normal and adrenalectomized (ADX) rats. Total RNA ($2.5{\mu}g$) was extracted from PVN micropunches of brain slices ($500{\mu}m$) and analyzed by reverse transcription-polymerase chain reaction (RT-PCR). The levels of corticotropin-releasing hormone (CRH) mRNA were increased in the ADX rats relative to normal rats, indicating that the PVN had been liberated from the negative feedback of corticosteroids. Among the six adrenoceptor subtypes examined, mRNA levels for ${\alpha}_{1B}$- and ${\beta}_1$-adrenoceptors were increased, but the level for ${\beta}_2$-adrenoceptors was decreased in the ADX rats. The mRNA levels for the other three subtypes and for the general and neuronal specific housekeeping genes, glyceroaldehyde-3-phosphate dehydrogenase (GAPDH) and N-enolase, respectively, were not changed in the ADX rats. In conclusion, the results indicate that adrenal steroids selectively regulate the gene expression of adrenoceptor subtypes in the PVN.

• 한국산업보건학회지
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• 제26권1호
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• pp.64-74
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• 2016

Objectives: The purpose of this study was to investigate whether chemical exposure among workers has relevance to dyspnea using data from the $3^{rd}$ Korea Working Conditions Survey. Methods: The research subjects were 29,711 wage workers. Chemical exposures consist of four factors, (1) breathing in vapors, fumes, dust and dirt, (2) breathing in organic solvent vapors, (3) handling or touching chemicals, and (4) secondhand smoke. Multiple logistic regression analysis was performed to examine the association between chemical exposure and dyspnea in the last 12months using proc surveylogistic in SAS 9.3 statistical software excluding people who had received a diagnosis of hypertension or obesity that can affect the respiratory distress symptoms(n=27,842). Results: Chemical exposure among workers was associated with dyspnea after adjustment for demographics and job characteristics. Prevalence of dyspnea was 4.9 per 1,000 among men and 5.8 per 1,000. Compared to a total score of 0 points of chemical exposure among workers, a total score of 1, 2-3, and 4 points tended to have increased risk of dyspnea in a dose-response manner for both men (OR=1.43, 1.93, and 4.26; P-for trend=0.002) and women(OR=1.10, 2.81, and 7.70; P-for trend=0.002). Stratified analysis by duration of current job showed that the association between chemical exposure and dyspnea tended to get stronger until 15 years and then disappeared afterwards, which reflects healthy worker survivor effect. Conclusions: We observed significant association between chemical exposure and dyspnea using the data of the $3^{rd}$ Korea Working Conditions Survey. Our results warrants providing knowledge related to chemical exposure, performing prevention activities, and creating various health policies to protect workers.

• 한국치위생학회지
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• 제15권1호
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• pp.63-71
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• 2015

Objectives: The purpose of the study is to investigate the relationship between bone mineral density and remaining teeth in Korean adults. Methods: Using National Health and Nutrition Examination Survey(KNHANES) 5th Year 1(2010), 1,985 adults over 50 years old having bone mineral density test were selected. Male adults were 883, and female adults were 1,102. The raw data consisted of general characteristics of the subjects, bone density data, and oral examination data. The questionnaire consisted of general health survey, laboratory examination study, and nutrition study. Data were analyzed using SPSS 18.0 program for multiple regression analysis, ANOVA, t-test. The variables included general characteristics of the subjects, health behavior, diet habit, and oral health behavior. General characteristics consisted of gender, age, residence area, education level, marital status, monthly income, and vocation. Health behavior consisted of smoking, alcohol drinking, body mass index(BMI), physical activity, and mental health. Diet habit consisted of frequency of meal, milk, coffee, and calcium ingestion. Oral health behavior consisted of frequency of tooth brushing, use of oral health care devices, and oral examination. Systemic diseases were measured by the questionnaire for hypertension, diabetes mellitus, and hyperlipidemia. Bone density was measured in T-score of femoral bone, neck of femur, and lumbar vertebrae. Bone density was classified into normal($T-score{\geq}-1.0$), osteopenia(-2.5 < T-score < -1.0), and osteoporosis ($T-score{\leq}-2.5$). The remaining teeth were measured by the differences between normal teeth and missing teeth. Results: Smoking and age are the most influencing factors on the number of remaining teeth and bone density(p<0.01)(p<0.05). Those who had higher bone density, younger age, and nonsmoker significantly had more remaining teeth. Those who were men, diabetic, lowly educated women, and low birth weighted persons tended to have less number of teeth(p<0.01). Conclusions: The study suggested that there were significant differences between men and women according to the oral health management behavior and systemic disease control. Proper management of the oral health and good quality of bone mineral density can reserve the remaining teeth through the whole life.

• 한국식품과학회지
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• 제37권6호
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• pp.970-975
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• 2005

본 연구에서는 건조된 rosemary잎을 물과 60% 에탄올로 추출하여 H. pylori항균활성과 항산화 및 기타 생리활성 효과를 알아보았다. Rosemary 추출물의 총 페놀 함량은 열수추출물에서 24.3mg/g였으며 알코올 추출물에서는 25.7mg/g으로 알코올추출물에 더 높은 페놀함량을 나타내었다. H. pylori에 대한 항균활성은 고체 배지상에서 $200{\mu}g/mL$의 페놀함량을 첨가했을 때 저해환의 직경은 물 추출물에서 11mm, 알코올 추출물에서 14mm로 나타났으며 액체 배지상에서는 각각 20.9, 78.2%의 저해율로 나타났다. 항산화활성은 물추출물과 60% 에탄올 추출물에서 각각 전자공여능이 89.1, 62.0%, $ABTS^+$는 98.42, 96.5%, PF는 0.9, 1.2, TBARS값은 대조구에$(2.4{\times}10^{-3}{\mu}M)$비해 알코올 추출물$(0.3{\times}10^{-3}{\mu}M)$과 물 추출물$(0.21{\times}10^{-3}{\mu}M)$이 더 낮은 TBARS값을 나타내었다. Angiotensin converting enzyme과 xanthin Oxidase 저해율은 열수 추출물에서 각각 39.9, 84.8% 그리고 알코올 추출물에서 89.8, 100%의 결과로 나타났다. 이 결과로 보아 로즈마리 추출물 중의 페놀성 화합물은 항산화활성, 항균활성, 고혈압 및 통풍에 효과가 있을 것으로 사료된다.

• 한국미생물·생명공학회지
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• 제38권4호
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• pp.467-474
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• 2010

일반 청국장과 한약재를 첨가한 CKJ-DD, CKJ-RG, CKJDD+RG, CKJ-RED의 기호도 및 기능성을 측정하였다. 색도분석 결과, 5가지 청국장 모두 브라운 계열이었으며, a값 (redness), b값(yellowness)은 5가지 청국장에서 모두 유의적인 차이를 나타냈다. 유리아미노산 분석 결과, 구수한 맛을 나타내는 Aspartic acid, Glutamic acid의 함량이 CKJ보다 한약재를 첨가한 청국장(CKJ-DD, CKJ-RG, CKJ-DD+RG, CKJ-RED)이 더 많은 함량을 나타났으며, 단맛을 나타내는 alanine, glycine, lysine 또한 CKJ에 비해 한약재를 첨가한 청국장(CKJ-DD, CKJ-RG, CKJ-DD+RG, CKJ-RED)이 3~4.5배 더 많은 함량을 나타냈다. 반면, 한약재의 고유한 향에 의해서 쓴맛을 나타내는 leucine은 CKJ에 비해 CKJ-DD, CKJ-RED이 2배의 함량을 더 나타냈다. 한편 혈당강하 조절기전과 관련된 항당뇨 활성 결과에서는 농도 의존적으로 혈당상승억제효과가 증가하는 경향을 나타내지만, CKJ과 한약재를 첨가한 청국장(CKJ-DD, CKJ-RG, CKJ-DD+RG, CKJRED CKJRED) 간의 큰 유의적인 차이는 나타나지 않았다. 또한 5종의 청국장의 기능성을 알아보기 위해, 총 피놀릭성분의 함량 분석 결과, CKJ에 비해 한약재를 첨가한 청국장(CKJDD, CKJ-RG, CKJ-DD+RG, CKJ-RED)의 총 피놀릭 함량이 유의적으로 증가하는 경향을 나타냈다. 항산화 활성(Peroxyl radical 소거능)을 측정한 결과, $10\;{\mu}g/mL$ 농도에서 대조군인 CKJ과 비교하여 CKJ-DD은 비슷한 활성을 보였으나 CKJ-RG는 1.5배, CKJ-DD+RG은 3배 높은 항산화 활성을 나타냈다. 이상의 결과로 다양한 한방청국장 제품의 표준화 및 제품화를 위한 다양한 지표들을 확인 할 수 있었다.

• 보건교육건강증진학회지
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• 제20권2호
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• pp.113-125
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• 2003

Background： Recently, adolescent obesity was increased and tended to become obese adults, facing increased risk for diabetes, cardiovascular disease. Even before reaching adulthood, adolescent obesity already was experiencing hypertension, dyslipidemia, and diabetes mellitus. The purpose of this study was to find prevalence of obesity of high school students in Jeju island and association between obesity and cardiovascular risk factors and association between childhood obesity and adolescent obesity. Method： The study subjects were 6,064 students of twenty-two high school in Jeju island and health survey data was gathered from high school health examination data and hospital health examination data from Aug. 1999 to Dec. 1999. Adolescent obesity was evaluated by ideal body weight method in 1998 and body mass index. Cardiovascular risk factors were checked total cholesterol, systolic and diastolic blood pressure, fasting blood sugar. In 1,534 students, obesity at primary school is checked by primary and middle school health record. Results： Prevalence of obesity in Jeju island high school students is 12.6% in male students, 13.3% in female students by ideal body weight method and 8.7% in male students, 8.5% in female students by body mass index. Prevalence of obesity of male students in city area and district area of Jeju island were each 12.9%, 10.3% and that of male students in city area was significantly higher. Prevalence of obesity of female students in city area and district area of Jeju island were each 12.9%, 14.2% and not significantly different. Prevalence of obesity of male students in general and commercial school group were each 13.9%, 10.1% and that of general school group was significantly higher. In female students, Prevalence of obesity general and commercial school group was not significantly different. Total cholesterol, systolic and diastolic blood pressure were significantly associated with degree of obesity in male and female students(p＜0.05) and fasting blood sugar was only significantly associated with degree of obesity in male students(p＜0.05). In 1,514 students checked by health record, Odds ratio of obesity at primary and middle school that at high school were 12.96∼22.77 and was significantly associated. Conclusion： Prevalence of obesity of high school students in Jeju island is very high and adolescent obesity was significantly associated with cardiovascular risk factors. Mostly childhood obesity tended to become adolescent obesity and program of control of obesity at childhood and adolescence is required.

• 한국식품영양과학회지
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• 제39권3호
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• pp.428-434
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• 2010

소금의 짠맛을 대체하기 위한 조미료를 개발하기 위해 잘 알려진 18가지의 향신료에 대한 맛을 정량묘사 분석하여 9개의 용어를 도출하였고, 맛 특성과 18가지 향신료를 주성분 분석을 이용하여 새로운 변수 PC1과 PC2에 대하여 상관성을 분석하였다. 주성분 분석결과 구수한 맛, 감칠맛과 짠맛 그리고 신맛과 매운맛 특성을 갖는 각각의 향신료 그룹을 결정할 수 있었고 이들 각각의 특성을 중심으로 네 가지의 소금 대체용 향신료를 제조하여 소금의 다량 섭취가 우려되는 간고등어 대신 향신료 조합물을 뿌렸을 때 기호도를 조사한 결과 신맛과 매운 맛 특성을 갖는 향신료 조합물의 기호도가 유의차를 나타내며 우수함을 알 수 있었다. 또한 이들 향신료 조합물에 대한 항산화성을 조사한 결과 매운맛과 신맛 특성을 갖는 향신료 조합물의 항산화력이 가장 높은 것으로 나타났다. 따라서 매운맛과 신맛을 특성으로 하는 향신료 조합물은 기호성과 항산화성이 증진 된 천연 소금대체용 향신료 조합물로 사용할 수 있음을 알 수 있었다. 본 실험에서는 관능평가를 이용하여 조합물을 개발하여 소금대체용 향신료의 개발이 가능함을 확인하였고 향후 이 향신료조합물의 화학적 및 임상적 특성에 대한 분석이 필요하다.

• 디지털융복합연구
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• 제13권1호
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• pp.383-396
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• 2015

본 연구의 목적은 건강검진 전문센터를 이용하는 민간검진자의 재검진 요인을 파악하는 것이다. 이를 위해 전국 7개 지역에 건강검진센터를 두고 있는 검진전문기관의 2008년도 70,250명을 대상으로 2012년까지 검진기관을 재방문한 요인을 분석하였다. 재검진 요인 분석을 위해 사용된 변수는 인구사회학적 특성, 유병 및 과거력, 신체계측, 생화학적 검사, 건강실천행태 등으로 교차분석 및 음이항 회귀분석을 실시하였다. 연구결과 19.2%가 2008년부터 2012년까지 매년 건강검진을 받았으며, 남성(exp(${\beta}$)=1.08), 30-40대(exp(${\beta}$)=1.09~1.18), 대구(exp(${\beta}$)=1.78), 광주(exp(${\beta}$)=1.57), 전남(exp(${\beta}$)=1.47), 경남(exp(${\beta}$)=1.52) 지역의 재수검 확률이 높았고, 과체중(exp(${\beta}$)=1.04) 및 고혈압 전단계인 사람(exp(${\beta}$)=1.06), 적정 음주(exp(${\beta}$)=1.17~1.21), 비흡연(exp(${\beta}$)=1.02), 낮은 스트레스(exp(${\beta}$)=1.02~1.06) 등 건강위험 요인을 관리하고 적정운동(exp(${\beta}$)=1.05~1.07) 등의 건강실천을 행하는 사람의 재수검 확률이 높았다. 검진전문기관은 이러한 결과를 바탕으로 CRM 수행 전략을 세우는 등 기관운영의 활성방안을 마련할 수 있을 것이다.

• 동의생리병리학회지
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• 제31권5호
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• pp.264-269
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• 2017

Prunella vulgaris, well-known traditional medicinal plant, is used for the cure of abscess, scrofula, hypertension and urinary diseases. Diabetic nephropathy is the most common cause of end-stage renal disease. The pathological characteristics of diabetic nephropathy are glomerular and tubular basement membrane thickening. The aim of the present study was to evaluate the effect of Prunella vulgaris, on diabetic glomerular injury in streptozotocin-induced diabetes rats. Diabetes mellitus was induced by a single intraperitoneal injection of streptozotocin (STZ; 45 mg/kg) and confirmed by random glucose level higher than ${\leq}300mg/dL$. The experimental rats were divided into five groups: control group (Male SD rats), STZ group (Male SD rats injected STZ), Aminoguanidine group (Male SD rats injected STZ + AG 100 mg/kg/day), Low dose group (Male SD rats injected STZ + APV 100 mg/kg/day), High dose group (Male SD rats injected STZ + APV 300 mg/kg/day). AG or APVs were administered once a day for 8 weeks. Body weight and food/water intake were measured every four weeks. At the end of study, the kidneys were collected and cut into pieces for immunohistochemistry and western blot analysis. Our study showed that body weight and water/food intake were no significant differences between untreated STZ-induced diabetic rat and APV treated-STZ rat. However, phosphorylation of receptor-regulated Smads (Smad3) was significantly decreased in APV treated-STZ rat as compared with the diabetic group. In addition, APV was improved nephrin level in kidney tissue. Therefore, we suggest that APV has a protective effect against STZ-induced diabetic glomerular injury.