• 제목/요약/키워드: 25-hydroxyvitamin $D_3$

검색결과 53건 처리시간 0.019초

농촌 지역에 거주하는 한국 노인의 혈청 비타민 D 농도와 인지기능과의 상관성 (Serum 25-hydroxyvitamin D and cognitive function in Korean older adults living in rural area)

  • 신예솜;최보율;김미경;양윤정
    • Journal of Nutrition and Health
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    • 제52권5호
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    • pp.465-474
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    • 2019
  • 본 연구는 한국 농촌 지역에 거주하는 60세 이상 노인 393명을 대상으로 혈청 비타민 D 상태와 영양소 섭취량을 파악하고, 비타민 D와 인지기능 사이의 상관성을 밝혔다. 미국 IOM의 비타민 D 진단 기준에 따라 대상자는 결핍군 26명 (6.6%), 부족군 175명 (44.5%), 충분군 192명 (48.9%)으로 분류되었다. 인구사회학적 특징을 세 군에 따라 분석한 결과, 충분군에서 남성과 음주자 비율, 실외직 비율, 키, 체중이 가장 높았다. 모든 영양소 섭취량에서는 유의적인 차이가 없었다. 인지기능을 평가하는 MMSE-KC의 총 점수는 충분군일수록 높았으며, 부분별로 지남력, 기억 등록, 집중력, 구성능력에서 충분군의 점수가 가장 높았으나 유의적인 차이는 없었다. 인지기능 저하 비율은 결핍군 53.8%, 부족군 38.3%, 충분군 31.9%로 혈청 비타민 D 농도가 높을수록 낮아졌으며, 유의미한 상관성이 있었다. 비타민 D 결핍군일수록 인지기능 저하의 위험도가 높아졌으나, 통계적으로 유의적인 차이는 없었다. 이 결과를 토대로 혈청 비타민 D 농도가 인지기능 저하와 관련이 있음을 확인할 수 있었다. 노인들은 노화로 인해 피부의 합성능력이 저하되어 비타민 D가 결핍되기 쉬우므로 인지기능 저하 및 치매의 예방을 위해 육류, 생선, 버섯 및 유제품등의 비타민 D 급원 식품이나 보충제 섭취가 필요하다고 생각된다. 상기 연구를 바탕으로 후속 연구는 비타민 D와 인지기능 사이의 인과관계를 밝힐 수 있는 코호트나 임상 연구가 요구된다.

한국 성인과 노인의 계절별 혈중 25-hydroxyvitamin D 농도와 비타민 D 급원식품 섭취빈도와의 관계 (Associations between Serum 25-hydroxyvitamin D and Consumption Frequencies of Vitamin D Rich Foods in Korean Adults and Older Adults)

  • 유아름;김지혜;권오란;오세영;김정현;양윤정
    • 대한지역사회영양학회지
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    • 제19권2호
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    • pp.122-132
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    • 2014
  • Objectives: This study was conducted to investigate the vitamin D status and to determine the association between serum 25-hydroxyvitamin D [25(OH)D] concentrations and consumption frequencies of vitamin D rich foods in Korean adults and older adults. Methods: Subjects were 10,374 adults and 2,792 older adults participating in the 2008-2009 Korea National Health and Nutrition Examination Survey (KNHANES). Consumption frequencies of vitamin D rich foods were estimated by using a qualitative food frequency questionnaire (FFQ). Eleven food items such as beef, egg, mackerel, tuna, yellow corvina, pollack, anchovy, mushroom, milk, yogurt, and ice cream were selected as vitamin D rich foods based on previous research. Results: The proportions of deficiency (< 12 ng/mL), inadequacy (12-20 ng/mL) and sufficiency (${\geq}20ng/mL$) of serum 25(OH)D concentrations from June to November and December to May in adults were 8.8%, 42.3%, 48.8%, and 28.2%, 52.8%, 19.1%, respectively. The proportions of deficiency, inadequacy and sufficiency of serum 25(OH)D concentrations from June to November and December to May in older adults were 10.1%, 32.4%, 57.5%, and 24.1%, 45.4%, 30.5%, respectively. The mean serum 25(OH)D concentrations in adults were positively related to the consumption frequencies of mackerel, anchovy, all fish, milk and milk dairy products. The mean serum 25(OH)D concentrations in older adults were positively related to the consumption frequencies of yellow corvina and negatively related to the consumption frequencies of ice cream. Conclusions: Our results suggest that Korean adults were more deficient in serum 25(OH)D concentrations than older adults. The consumption of vitamin D rich foods may affect vitamin D status in Korean adults. Further studies are required to confirm these findings.

Association of Serum Vitamin D Levels with Bacterial Load in Pulmonary Tuberculosis Patients

  • Yuvaraj, B.;Sridhar, M.G.;Kumar, S. Vinod;Kadhiravan, T.
    • Tuberculosis and Respiratory Diseases
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    • 제79권3호
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    • pp.153-157
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    • 2016
  • Background: Vitamin D is known to have diverse effects on various systems in the body. There is evidence to suggest that a link exists between the serum vitamin D status and tuberculosis. The present study was designed to assess the alterations in serum 25-hydroxyvitamin D levels in newly diagnosed sputum acid fast bacilli (AFB) positive pulmonary tuberculosis patients and to study the association, if any, between serum vitamin D levels and different levels of sputum smear positivity. Methods: Serum 25-hydroxyvitamin D levels were estimated in 65 sputum AFB positive pulmonary tuberculosis patients and 65 age and gender-matched healthy controls. Results: The levels of serum 25 hydroxy-vitamin D in tuberculosis patients were not statistically different from the levels of serum 25 hydroxy-vitamin D in healthy controls. However, among patients with pulmonary tuberculosis, there was a significant negative correlation between the levels of serum 25 hydroxy-vitamin D and levels of sputum positivity. Conclusion: Serum vitamin D levels negatively correlates with bacterial load in patients with active pulmonary tuberculosis.

Clinical characteristics and prevalence of vitamin D insufficiency in children less than two years of age

  • Yoon, Ji-Hyun;Park, Cheong-Soo;Seo, Ji-Young;Choi, Yun-Sun;Ahn, Young-Min
    • Clinical and Experimental Pediatrics
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    • 제54권7호
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    • pp.298-303
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    • 2011
  • Purpose: To evaluate the clinical characteristics of vitamin D deficiency and its association with iron deficiency anemia (IDA). Methods: A total of 171 children aged less than two years underwent 25-hydroxyvitamin $D_3$ tests between January 2007 and July 2009. The study was classified into two groups: normal and vitamin D insufficiency, by their vitamin 25-hydroxyvitamin $D_3$ levels. Results: In total, 120 children were in the normal group (mean age, body weight and heights $12.5{\pm}7.0$, $9.3{\pm}0.9$ kg and $76.8{\pm}1.1$ cm), and 51 children in the vitamin D insufficiency group ($9.9{\pm}5.4$ months, $9.0{\pm}0.9$ kg and $75.1{\pm}0.9$ cm). Vitamin D insufficiency was most commonly diagnosed in the spring (44%). The proportion of complete breast-feeding was higher in the insufficiency (92%), and 25.5% of the children in the deficient group also experienced IDA compared that 12% of normal group. Ten children in the insufficiency group experienced bony changes. Six children received calcitriol medication in the normal group, in whom the mean vitamin 25-hydroxyvitamin $D_3$ level increased from $39.6{\pm}14.6$ ng/mL (pre-medication) to $41.8{\pm}17.2$ ng/mL (post-medication), and 13 in the insufficiency group, in whom the mean vitamin 25-hydroxyvitamin $D_3$ increased from $20.7{\pm}7.0$ ng/mL to a mean post-treatment level of $43.7{\pm}23.8$ ng/mL. Conclusion: This study demonstrated that approximately 30% of children aged ${\leq}2$ years experienced vitamin D insufficiency associated with subclinical rickets. Many children also experienced concurrent IDA. Guidelines for vitamin D supplement in such children must therefore be established.

폐경 전, 폐경 후 여성의 혈청 25-hydroxyvitamin D 수준과대사증후군 위험도의 관계 (Relationship between Serum 25-hydroxyvitamin D Concentration and the Risks of Metabolic Syndrome in Premenopausal and Postmenopausal Women)

  • 김유진;문민선;양윤정;권오란
    • Journal of Nutrition and Health
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    • 제45권1호
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    • pp.20-29
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    • 2012
  • Metabolic syndrome (MetS) has become a global epidemic. In particular, it is known that there is a dramatic increase in the prevalence of MetS among women during the postmenopausal period. Recently, accumulating studies have suggested that vitamin D deficiency may be inversely associated with the risk factors regarding MetS. However, evidence from postmenopausal women is limited. In this study, we examined the association between the serum 25-hydroxyvitamin D [25(OH)D] and the MetS in Korean adult women aged 20-69 years (n = 2,618) by using the 2007-2008 Korean National Health and Nutrition Examination Survey data. The geometric mean of plasma 25(OH)D were $17.16{\pm}6.28\;ng$/mL and $20.20{\pm}7.69\;ng$/mL for premenopausal and postmenopausal women, respectively. The percentages of vitamin D deficiency [25(OH)D < 12 ng/mL] were 22.5% and 14.4%, respectively. MetS was more prevalent in postmenopausal women (43.0%) compared with premenopausal women (11.2%). When serum concentrations of 25(OH)D were categorized in quintiles, there was no relationship in the prevalence of MetS in both premonopausal and postmenopausal women. However, in premenopausal women, compared with the lowest 25(OH)D quintile, the odds ratio for hypertriglyceridemia in the highest quintile was 0.57 (95% CI 0.34-0.95, $P_{trend}$ = 0.041) and for low serum HDL cholesterol 0.60 (95% CI 0.42-0.85, $P_{trend}$ = 0.014) after adjusting for all potential confounders. On the other hand, we observed the tendency of an inverse relationship for 25(OH)D regarding low serum HDL cholesterol (OR 0.78, 95% CI 0.50-1.22, $P_{trend}$ = 0.029) and a direct relationship with abdominal obesity (OR 1.94, 95% CI 1.01, 3.74, $P_{trend}$ = 0.049) in postmenopausal women. Further studies are needed to confirm these findings in other research settings.

제5기 국민건강영양조사 자료 중 남성에서 혈청 중 25-hydroxyvitamin D와 만성폐쇄성폐질환의 상관관계 (Relationship between serum 25-hydroxyvitamin D and chronic obstructive pulmonary disease in males in the fifth Korean national health and nutrition examination survey)

  • 정인경
    • Journal of Nutrition and Health
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    • 제47권5호
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    • pp.321-329
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    • 2014
  • 제5기국민건강영양조사 자료중 40세이상 남성을 대상으로 혈액 중 25(OH)D와 COPD의 상관관계를 조사하였다. 25(OH)D는 사분위로 군을 나누어 적용하였고, 2012년 개정된 진료지침에 따라 $FEV_1/FEV_6$ < 0.73인 경우를 COPD로 판정하였다. 다른 요인을 보정하지 않았을 경우에는 25(OH)D와 COPD 사이에 상관관계가 없었으나 흡연상태, 가계소득, 교육수준, 직업, BMI, 만연령및흡연지수를 보정하였을 때는 25(OH)D와 COPD사이에 유의한 상관관계를 보였다. 25(OH)D농도 17~21 ng/mL인 3/4분위군을 기준으로 1/4분위의 경우의 OR 1.643 (95% CI 1.161-2.236), 2/4분위는 OR 1.453 (95% CI 1.045-2.020)으로 유의하게 증가하였다. 결론적으로 40세 이상 남성에서 혈중 25(OH)D 농도는 COPD 유병가능성과 유의한 상관관계를 보였다. 즉, 3/4 분위군 [25(OH)D 17 ng/mL 이상 21 ng/mL 미만]을 기준으로 혈중농도가 낮을수록 COPD 유병가능성이 높았다.

상이한 선양의 자외선을 조사한 브로일러 병아리에 있어서 간장 25-Hydroxyvitamin $D_3$회량의 계치적 변화 (Time Course Variation of Liver 25-Bydroxyvitamin $D_3$ Content in Broiler Chicks Exposed to UVB Light with Different Dobe)

  • 장윤환;강훈석;여영수;김강수;조인호;배은경
    • 한국가금학회지
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    • 제19권4호
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    • pp.217-225
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    • 1992
  • 본 연구는 무창약등의 계함에서 vitamin D-결핍사료로 31일간 사육한 육용 Hubbard계 병아리의 전신에 UVB를 0.204또는 0.408mJ/$\textrm{cm}^2$(조사시간 30분 또는 60분) 조사하고 경시적으로 간장내 25-hydroxyvitamin $D_3$[25(OH)$D_3$] 함양을 측정코자 실시되었다. 먼저 지질을 추출하고 Sep-Pak silica cartridge에 의하여 25(OH)$D_3$를 분리한 다음, 순상 HPLC에 의하여 25(OH)$D_3$ 함양을 분석하였다. UVB를 조사하지 않은 대조구 병아리의 간장중 25 (OH)$D_3$ 농도는 평균 17.5ng/g이었으며 0.204mJ/$\textrm{cm}^2$ 처리후 순시간대의 농도는 37.8ng/g이었고 66시간대에 40.50ng/g의 최고치를 보였다. 그 후 간장의 25(OH)$D_3$ 함량이 감소되었다. 0.408mJ/$\textrm{cm}^2$ 조사시에는 12시간대에 35.7ng/g이었고 42시간대에 61.4ng/g의 최고치를 나타내었다. 그 후 감소되어 138시간대에 39.50ng/g을 보였다. UVB 조사로 증가된 절대량은 0.204mJ/$\textrm{cm}^2$때 23ng/g, 0.408mJ/$\textrm{cm}^2$때 43.9ng/g(191%)으로서 열사선양을 2배로 하였을 때 간장중 25(OH)$D_3$의 생산량은 약2부였다. 그리고 조사선양을 2배로 하니까 간장중 25(OH)$D_3$의 최고치가 24시간 더 빨리 나타나는 경향을 보였다.

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Effects of sun exposure and dietary vitamin D intake on serum 25-hydroxyvitamin D status in hemodialysis patients

  • Lee, Yeon Joo;Oh, Il Hwan;Baek, Hee Jun;Lee, Chang Hwa;Lee, Sang Sun
    • Nutrition Research and Practice
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    • 제9권2호
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    • pp.158-164
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    • 2015
  • BACKGROUND/OBJECTIVES: Vitamin D deficiency is common in hemodialysis patients. The aim of this study was to identify whether or not sun exposure and dietary vitamin D intake have effects on serum 25-hydroxyvitamin D (25(OH)D) status in hemodialysis (HD) patients. The objective was to identify the main determinants of serum vitamin D status in the study subjects. SUBJECTS/METHODS: A cross-sectional study of 47 HD patients (19 males and 28 females) was performed. We assessed serum 25(OH)D and $1,25(OH)_2D$ levels between August and September 2012 and analyzed the prevalence of vitamin D deficiency in HD patients. To evaluate the determinants of serum 25(OH)D levels, we surveyed dietary vitamin D intake, degree of sun exposure, and outdoor activities. To compare biological variables, serum 25(OH)D was stratified as below 15 ng/ml or above 15 ng/ml. RESULTS: Mean 25(OH)D and $1,25(OH)_2D$ levels were $13.5{\pm}5.8ng/ml$ and $20.6{\pm}11.8pg/ml$, respectively. The proportions of serum 25(OH)D deficiency (< 15 ng/ml), insufficiency (15-< 30 ng/ml), and sufficiency (${\geq}30ng/ml$) in subjects were 72.4%, 23.4%, and 4.3%, respectively. Prevalence of vitamin D deficiency in female patients was 78.6%, whereas that in males was 63.2% (P = 0.046). Vitamin D intake and sun exposure time were not significantly different between the two stratified serum 25(OH)D levels. Dietary intake of vitamin D did not contribute to increased serum 25(OH)D levels in HD patients. The main effective factors affecting serum 25(OH)D status were found to be the sun exposure and active outdoor exercise. CONCLUSIONS: Hypovitaminosis D is common in HD patients and is higher in females than in males. Sun exposure is the most important determinant of serum 25(OH)D status in HD patients.

자외선 조사방법이 육계 병아리의 간장과 골격중 Vitamin $D_{3}$ 및 25-Hydroxyvitamin $D_{3}$ 농도에 미치는 영향 (Influence of UV Irradiation Procedures on the Concentration of Vitamin $D_{3}$ and 25-Hydroxyvitamin $D_{3}$ in the Liver and Skeleton of Broiler Chicks)

  • 장윤환;이은택
    • 한국가금학회지
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    • 제21권3호
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    • pp.157-168
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    • 1994
  • This study was carried out to elucidate the time course variation of vitamin $D_{3}$ (V$D_{3}$) and 25-hydroxyvitamin $D_{3}$ [25(OH)$D_{3}$] contents in the liver and skeleton of 3-wk old broiler chicks when treated with different UV irradiation procedure. Day-old Hubbard chicks were fed vitamin D deficient diet for 3 wk and exposed to medium wave ultraviolet(UVB) light with different irradiation procedures. Procedure I was 30 min continuous irradiation(O.204 mJ /$cm^{2}$) and Procedure II was three seperate 10 min irradiation with 12 h intervals, and Procedure III was three seperate 10 min irradiation with 24 h intervals. The liver and skeleton samples were collected at 10 different times between 0000~2400 h after the last irradiation. The V$D_{3}$ and 25(OH)$D_{3}$ fractions wereseparated by Sep-Pak silica cartridge and the concentrations were determined by normal phase HPLC. The mean content of V$D_{3}$ in the liver of the birds treated by Procedure II was 6.68 ng /g, which was higher than 5.60 and 5.30 ng /g from Procedure I and Ill, respectively(P<.O5). With regard to the effect of elapsed time after UVB irradiation on the V$D_{3}$ concentration of the liver, 96 h treatment showed the highest value(13.08 ng/g)(P<.05). There was a significant(P$D_{3}$ were significantly(P$D_{3}$ in the skeleton of tibia and femur, there were no significant differences among Procedure I, II and III, but significant differences were found among those from various elapsed time after irradiation, The highest value was shown at 96 h(O.99 ng /g) treatment, and interaction between irradiation procedure and elapsed time was not significant. With regard to the mean content of 25(OH)$D_{3}$ in bone, the Procedure II(18.79 ng /g) and III(17.73 ng /g) showed higher values than Procedure I did (P<.05), and the 12 h elapsed time showed the highest value(31.17 ng /g) among 10 treatments (P<.05), however, there was no significant interaction between exposing procedure and elapsed time. In conclusion, the Procedure II would he more desirable than Procedure I or III to produce more V$D_{3}$ and 25(OH)$D_{3}$ in the liver and skeleton of birds by exposing to the UVB light. Also, it was verified that 25(OH)$D_{3}$ increases more quickly than V$D_{3}$ in both tissues tested and is utilized more quickly to recover from the rickets of chicks.

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Relationship between serum 25-hydroxyvitamin D and interleukin-31 levels, and the severity of atopic dermatitis in children

  • Cheon, Bo Ram;Shin, Jeong Eun;Kim, Yun Ji;Shim, Jae Won;Kim, Deok Soo;Jung, Hye Lim;Park, Moon Soo;Shim, Jung Yeon
    • Clinical and Experimental Pediatrics
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    • 제58권3호
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    • pp.96-101
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    • 2015
  • Purpose: Atopic dermatitis (AD) is a chronic inflammatory relapsing skin disorder. Vitamin D plays a pivotal role in the development of AD, and interleukin (IL) 31 is known to be related to pruritus in AD. The aim of our study was to determine whether 25-hydroxyvitamin D (25(OH)D) levels are related to IL-31 levels or to the severity of AD. Methods: We enrolled 91 children with AD and 32 control subjects without history or symptoms of allergic diseases. Blood was drawn to evaluate complete blood cell count, total eosinophil count (TEC), and total IgE, specific IgE to common allergens, 25(OH)D, and IL-31 levels. Serum 25(OH)D and IL-31 levels were measured using high-performance liquid chromatography and enzyme-linked immunosorbent assay, respectively. The scoring atopic dermatitis (SCORAD) index was used to evaluate the severity of AD. Results: The mean 25(OH)D level was significantly lower in the AD group than in the control group; 25(OH)D decreased greatly in the moderate and severe AD groups compared with the mild AD group. Children with atopic sensitization showed significantly lower 25(OH)D levels than nonatopic children. However, serum IL-31 levels were not related to AD group, SCORAD index, or 25(OH)D levels. The SCORAD index was inversely correlated with serum 25(OH)D level and positively correlated with TECs and total IgE levels. Children with moderate and severe AD had significantly higher TECs than children with mild AD. Conclusion: Vitamin D is related to the severity of AD independently of IL-31.