• 한국식품과학회지
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• 제53권2호
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• pp.139-148
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• 2021

아토피피부염은 성인 및 어린이에서 모두 발생할 수 있지만, 특히 어린이에게서 많이 발병하는 질환으로 만성, 재발성, 염증성 피부질환이며, 심한 가려움증을 동반해 일상생활을 힘들게 한다. 현재까지 아토피피부염에 대한 치료법은 스테로이드성 연고를 도포하는 것뿐이지만, 많은 환자들은 스테로이드 장기 사용에 의한 부작용을 겁내고, 이는 스테로이드 포비아로까지 번지고 있어 아토피피부염의 완화를 위한 천연 대체재가 절실한 상황이다. 과거 뼈 건강과 칼슘 대사만을 담당하는 것으로 알려져 왔던 비타민 D가 면역조절에서 있어서 중요한 역할을 담당한다는 사실이 밝혀지며, 대표적인 알레르기성 질환의 하나인 아토피피부염과 비타민 D 사이의 상관관계를 분석한 연구가 다수 보고되었다. 아토피피부염의 발병 또는 중증도는 다양한 원인이 복합적으로 작용한다고 알려져 있다. 많은 연구들이 이러한 변수들을 통제하지 않고 단면조사연구로 진행되었기에 발표된 연구들 간에 상충성이 존재하지만 과반수 이상의 연구결과들이 유의적인 상관관계를 보고하고 있고, 인구집단을 특정하였을 때, 상관관계를 보였다는 연구 결과를 토대로 하면 혈중 비타민 D 농도와 아토피 피부염의 발생 또는 중증도 사이에는 약한 상관관계가 있을 가능성이 있는 것으로 생각된다. 그러나 명확한 상관관계를 파악하기 위해서는 다양한 변수를 통제한 연구가 진행되어야 할 것으로 생각된다. 최근에는 혈중 비타민 D 농도와 아토피피부염 간의 관계를 파악하기 위해 단면조사연구보다는 아토피피부염 환아에게 직접 비타민 D를 투여 후 질환의 개선효과를 확인하는 무작위대조군 연구가 많이 시도되고 있다. 본 논문에서 검토한 논문 중 70%는 경구로 1000-5000 IU의 비타민 D를 21일-3개월 투여 시 아토피피부염의 중증도가 유의적으로 개선되었음을 보고하였다. 연구들 간의 상충성은 연령, 계절, 위도, 자외선 선량 및 자외선 조사 시간 등 다양한 변수들이 작용하였기 때문이라 생각된다. 다소 상반되는 연구결과들이 있지만, 비타민 D가 아토피피부염을 유의적으로 개선하였다는 결과들은 아토피피부염을 비롯한 알레르기성 질환의 완화에 있어서 비타민 D의 활용 가능성을 제시하고 있다. 비타민 D를 아토피피부염 개선을 위한 치료제로서 적용하기 위해서는 좀 더 체계적으로 설계된 실험이 진행되어야 할 것으로 생각되며, 면역조절기능을 위한 적절한 섭취용량이 도출되어야 할 것으로 사료된다.

• Journal of Obesity & Metabolic Syndrome
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• 제26권1호
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• pp.52-60
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• 2017

Background: This study investigated the relationship between depressive symptoms and physical fitness, obesity indices, and vitamin D status in office workers. Methods: The subjects were 514 adults with more 30 years of experience as office workers in the city of Seoul. Lifestyle risk factors, obesity indices, physical fitness, and serum vitamin D levels were assessed with a standardized protocol. The Beck Depression Inventory (BDI) was used to assess depression status. Vitamin D status was assessed by measuring serum 25-hydroxyvitamin D concentrations. Based on the BDI scores, participants were classified into no depression (ND, $BDI{\leq}9$), mild depression (MiD, $10{\leq}BDI{\leq}15$), and moderate depression (MoD, $16{\leq}BDI{\leq}23$) groups. Results: Compared with the high cardiorespriatory fitness group, the low cardiorespiratory fitness (men OR=2.618, women OR=1.596) an middle cardiorespiratory fitness group (men OR=1.256, women OR=1.110) had significantly higher odds ratio for having depressive symptoms, even after adjustment for age, hypertension, diabetes, hyperlipidemia, cardiovascular disease, alcohol intake, smoking, body mass index (BMI), percent body fat (%BF), and waist circumference (WC). Compared with the insufficient or deficient vitamin D group , the sufficient vitamin D group had significantly lower odds ratios for having depressive symptoms (men OR=0.121, women OR=0.114), even after adjustment for age, hypertension, diabetes, hyperlipidemia, cardiovascular disease, alcohol intake, smoking, BMI, %BF, and WC. Conclusion: Vitamin D supplementation and outdoor activities should be key components of a lifestyle intervention against office workers' depression.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제17권1호
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• pp.47-51
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• 2014

Purpose: Neonatal late-onset hypocalcemia is defined as hypocalcemia developed after postnatal 3 days and associated with hypoparathyroidism, high phosphate diets and vitamin D deficiency. We experienced the increment of neonatal late onset hypocalcemia over 1 year. We tried to evaluate the relationship between late onset hypocalcemia and maternal hypovitaminosis D. Methods: The medical records in the neonates with late-onset hypocalcemia during January 2007 to July 2008 were retrospectively reviewed. Among those patients, 17 paired sera of mothers and neonates had collected. The levels of 25-OH vitamin D (25OHD) and intact parathyroid hormone (iPTH) were measured and were compared with neonate and the mother. Results: The mean gestational age was $38^{+1}$ weeks, and the mean body weight was 2,980 g. The onset time of hypocalcemia was 5.9 days of age. Most of them (88.2%) were feeding with formula and no one was only breast milk feeding. Of the 17 patients, 13 were born in spring or in winter. The median levels of calcium, phosphorus, alkaline phosphatase, iPTH and 25OHD were 7.0 mg/dL, 8.6 mg/dL, 191.0 U/L, 57.2 pg/mL and 24.0 ng/mL in neonates. The levels of 25OHD of 6 neonates were <20 ng/mL. A total of 16 mothers were considered vitamin D-deficient (<20 ng/mL), and vitamin D insufficient (20<25OHD<30 ng/mL). Conclusion: Neonatal late-onset hypocalcemia in our study seems to be influenced by maternal vitamin D deficiency and insufficiency. Sun tanning and vitamin D supplements from winter to spring would be helpful to prevent maternal vitamin D deficiency, one of the causes of neonatal late-onset hypocalcemia.

• Asian Pacific Journal of Cancer Prevention
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• 제15권2호
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• pp.957-961
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• 2014

Purpose: With regard to the protective effect of vitamin D against colorectal cancer (CRC), we evaluated genetic variants that might influence vitamin D metabolism: vitamin D receptor (VDR), vitamin D binding protein (GC), vitamin D 25-hydroxylase (CYP2R1), and vitamin D 25-hydroxy 1-alpha hydroxylase (CYP27B1). Materials and Methods: A total of 657 subjects, including 303 cases with CRC and 354 controls were enrolled in this case-control study. All 657 were genotyped for the four gene variants using PCR-RFLP methods. Results: In this study, no significant difference was observed for VDR (rs2238136), GC (rs4588), CYP2R1 (rs12794714), and CYP27B1 (rs3782130) gene variants in either genotype or allele frequencies between the cases with CRC and the controls and this lack of difference remained even after adjustment for age, BMI, sex, smoking status, NSAID use, and family history of CRC. Furthermore, no evidence for effect modification of the variants and CRC by BMI, sex, or tumor site was observed. Conclusions: Our findings do not support a role for VDR, GC, and CYP27B1 genes in CRC risk in our Iranian population. Another interesting finding, which to our knowledge has not been reported previously, was the lack of association with the CYP2R1 gene polymorphism. Nonetheless, our findings require confirmation and possible roles of vitamin D metabolism-related genes in carcinogenesis need to be further investigated.

• Asian Pacific Journal of Cancer Prevention
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• 제15권8호
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• pp.3377-3381
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• 2014

Background: The incidence of colorectal cancer increases with vitamin D deficiency as shown in recently published studies. In addition, prospective investigations have indicated that low vitamin D levels may be associated with increased mortality of colorectal cancer, especially in stage III and IV cases. However, the exact incidence of vitamin D deficiency and the relation between vitamin D deficiency and osteopenia/osteporosis is still not known. The aim of this study is to identify severity of vitamin D deficiency and absolute risk factors of osteopenia/osteoporosis in colorectal cancer survivors. Materials and Methods: A total of 113 colorectal cancer survivors treated with surgery and/or chemotherapy ${\pm}$ radiotherapy were recruited from medical oncology outpatient clinics during routine follow-up visits in 2012-2013. Bone mineral densitometry (BMD) was performed, and serum 25-OH vitamin D levels were also checked on the same day of the questionnaire. The patients was divided into 2 groups, group A with normal BMD and group B with osteopenia/osteoporosis. Results: The median age of the study population was 58 (40-76). Thirty (30.0%) were female, whereas 79 (70.0%) were male. The median follow-up was 48 months (14-120 months). Vitamin D deficiency was found in 109 (96.5%); mild deficiency (20-30 ng/ml) in 19 (16.8%), moderate deficiency (10-20 ng/ml) in 54 (47.8%) and severe deficiency (<10 ng/ml) in 36 (31.9%). Osteopenia was evident in 58 (51.4%) patients whereas osteoporosis was noted in 17 (15.0%). Normal BMD was observed in 38 (33.6%). No apparent effects of type of surgery, presence of stoma, chemotherapy, radiotherapy and TNM stage were found regarding the risk of osteopenia and osteoporosis. Also, the severity of the vitamin D deficiency had no effect in the risk of osteopenia and osteporosis (p=0.93). In female patients, osteopenia/osteoporosis were observed in 79.5% patients as compared to 60.7% of male patients (p=0.04). Conclusions: In our study, vitamin D deficiency and osteopenia/osteoporosis was observed in 96.5% and 66.4% of colorectal cancer survivors, respectively. There is no defined absolute risk factor of osteopenia and osteoporosis in colorectal cancer survivors. To our knowledge, in the literature, our study is the first to evaluateall the risk factors of osteopenia and osteoporosis in colorectal cancer survivors.

• 한국융합학회논문지
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• 제10권12호
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• pp.159-168
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• 2019

이 연구는 한국인의 비타민 D 수준에 관련된 요인들을 조사 후 인과 관계를 알아보는 것을 목적으로 하였다. 연구 자료로 국민건강영양조사 제6기 2014년도에서 연구요인을 가진 1,977명을 대상으로 하였다. 혈청 Vitamin D와 관련된 요인들을 찾기 위하여 교차 분석을 하였고, 통제변수 통제 로지스틱 회귀분석으로 상대위험도를 평가하였다. 남성은 40세 미만(OR 4.1), 봄·겨울(OR 4.2, 도시거주(OR 2.1), 흡연자(OR 1.8), 보충제 미복용(OR 2.1), 긴 좌식생활 시간일수록 위험도가 높았다(OR 1.1). 여성은 40세 미만(OR 1.9), 실내직종(OR 4.5), 보충제 미복용(OR 3.0)의 비교 위험도가 유의하게 높아 남성과 다르게 관찰되었다. 성별 비교위험도가 다르게 관찰된 이유로 성별에 따른 건강행위의 차이로 판단된다. 연구 결과 한국인의 Vitamin D 는 결핍으로 관찰되었으며, 주요한 중재수단으로 Vitamin D가 함유된 보충제의 복용과 야외활동을 늘려야 할 것으로 판단된다. 한국인의 질병예방에 기초자료로 이용과 향후 실험연구가 진행될 것으로 기대된다.

• 식품산업과 영양
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• 제17권2호
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• pp.1-6
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• 2012

• Asian Pacific Journal of Cancer Prevention
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• 제16권14호
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• pp.5983-5986
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• 2015

Background: Serum 25-hydroxyvitamin D insufficiency is very common in Pakistan and is often related to inferior prognosis in some cancers but limited data exist for hematopoietic malignancies. This study was conducted to determine the vitamin D insufficiency in B-chronic lymphoid leukemia (CLL) cases at the time of presentation and its possible correlation with clinical staging, hematological parameters and biochemical markers. Materials and Methods: This descriptive cross sectional study was carried at Liaquat National Hospital from January 2011 to June 2013. Sixty patients with B-chronic lymphoid leukemia were enrolled. Complete blood count, vitamin D levels, serum urea, creatinine, uric acid and LDH levels were assessed. Data were compiled and analyzed using SPSS version 21. Results: Out of 60 patients, 42 (70%) were male and 18 (30%) were female. Mean age was $59.0{\pm}9.2years$. The frequency of vitamin D insufficiency was found to be 56.7%. Overall insufficiency was more frequently seen in male gender (40%). Vitamin D insufficiency demonstrated a positive association with low lactate dehydrogenase levels (P=0.005). No links were established with age, clinical stage, hematological and other biochemical markers. Conclusions: Vitamin D insufficiency is high compared with Western studies. Whether normalization of vitamin D insufficiency in deficient B-CLL patients could improve the clinical outcome or delay disease progression will require further studies.

• Asian-Australasian Journal of Animal Sciences
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• 제26권11호
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• pp.1569-1576
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• 2013

The study was conducted to evaluate the effect of vitamin E and zinc supplementation on energy metabolites, lipid peroxidation, and milk production in peripartum Sahiwal cows. For this, thirty-two pregnant dry Sahiwal cows were selected at sixty days prepartum and divided into four groups viz control, $T_1$, $T_2$, and $T_3$ of eight each. Group $T_1$ were supplemented with zinc at 60 ppm/d/cow, group $T_2$ were supplemented with vitamin E at 1,000 IU/d/cow and group $T_3$ were supplemented with combination of vitamin E at 1,000 IU/d/cow and zinc at 60 ppm/d/cow during d 60 prepartum to d 90 postpartum. Blood samples were collected on d -60, -45, -30, -15, -7, -3, 0, 3, 7, 15, 30, 45, 60, 90, and 120 with respect to day of parturition and analysed for glucose, non esterified fatty acid, and thiobarbituric acid reactive substance. Body condition score was maintained significantly better (p<0.05) in $T_3$ than in the control, $T_1$ and $T_2$ groups. Overall glucose level was higher (p<0.05) in $T_3$ than control, $T_1$, and $T_2$ groups. Levels of nonesterified fatty acid, and thiobarbituric acid reactive substance were lower (p<0.05) in $T_3$ than control, $T_1$, and $T_2$ groups. Milk yield was higher (p<0.05) in $T_3$ than control, $T_1$, and $T_2$ groups. In conclusion, the present study indicated that the supplementation of vitamin E and zinc in peripartum Sahiwal cows enhanced milk production by reducing negative energy balance.

• Nutritional Sciences
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• 제7권2호
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• pp.98-106
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• 2004

The dietary vitamin $B_6$ intake of 185 Korean children aged 7-12 years (y), who showed no health problems, in the Seoul area and its sources were estimated using a modified Korean vitamin $B_6$ database. The age and sex of each subject was classified according to the classifications in the Korean Recommended Dietary Allowance (RDA). Dietary vitamin $B_6$ intake and food sources were estimated using the three-day recall method with the help of a trained interviewer. Food portion sizes were estimated by using standard household measures and published average portion sizes. The average daily vitamin $B_6$ intake was 1.69$\pm$0.50 mg/d in children aged 7-9 y, 1.86$\pm$0.44 mg/d in male children aged 10-12 y and 1.77$\pm$0.62 mg/d in female children aged 10-12 y. Less than 5% of the subjects consumed less than the Korean RDA of vitamin $B_6$. The average ratio of vitamin $B_6$intake to daily protein intake was 0.028$\pm$0.006 mg/g in children aged 7-9 y, 0.028$\pm$0.004 mg/g in male children aged 10-12 y and 0.029$\pm$0.007 mg/g in female children aged 10-12 y. The intake of vitamin $B_6$ was significantly (p<.01) positively correlated to the intake of all other nutrients. Foods from animal and plant sources provided 37% and 73% respectively, of total vitamin $B_6$. Major dietary sources of vitamin $B_6$ in children in the Seoul area were rice, soybean sprouts, pork, beef, cereal, kimchi, milk, onions, and potatoes. As for major dietary sources of vitamin $B_6$, the top 20 foods provided nearly 73-75% of the total vitamin $B_6$ consumed by Korean children.