• Journal of Applied Biological Chemistry
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• 제65권4호
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• pp.329-335
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• 2022

Essential minerals are important for human health because they support biochemical reactions in metabolism and may play a role in the development of glucose-6-phosphate dehydrogenase deficiency (G6PD). We investigated the relationship between calcium, magnesium, urea, creatinine, total protein, glucose and vitamin D levels in G6PD deficiency in this study. The control group consisted of 40 people (23 females and 17 males) and the patient group consisted of 50 people (20 females and 30 males), all of whom were between the ages of (1-12 years). The findings revealed that the calcium level in patients, depending on sex factor, has a highly significant increase (p <0.0001) when compared to the control group, especially in children who are females rather than males who are affected by G6PD deficiency. In addition, the level of magnesium was found to be significantly different (p <0.0001) in children male patients when compared to the control group. On the other side, the level of total protein was found to be significantly high in children patients (p <0.01) when comparing with control group, and the levels of urea, creatinine and glucose were found to be highly significant increase (p <0.001) in patients when comparing to healthy groups, vitamin D levels were significantly lower (p <0.0001) with G6PD deficiency comparing to control group. In conclusion, the low and high significant associations between vitamin D, calcium, magnesium, urea, creatinine, and glucose indicate that more research is needed to better understand their roles in G6PD development.

• 한국식품영양과학회:학술대회논문집
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• 한국식품영양과학회 2001년도 International Symposium on Food,Nutrition and Health for 21st Century
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• pp.134-139
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• 2001

Vitamin deficiency is a result of an inadequate diet. Education on the importance of trace nutrients in diabetic patients with poor blood sugar control is examined. Those who prepare meals must consider the loss of vitamins in the process of cooking. Our study also suggested that marginal vitamin deficiency plays an indirect but important role in the development of diabetic complications. Vitamin C as altering total cholesterol and vitamin E as altering triglyceride could modify diabetic retinopathy. Pharmacologically, niacin might be responsible for the decrease in lipoprotein (a) and vitamin C would inhibit the influence of rapid blood glucose control on diabetic retinopathy.

• Clinical and Experimental Pediatrics
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• 제54권2호
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• pp.51-54
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• 2011

Vitamin D is present in two forms, ergocalciferol (vitamin $D_2$) produced by plants and cholecalciferol (vitamin $D_3$) produced by animal tissues or by the action of ultraviolet light on 7-dehydrocholesterol in human skin. Both forms of vitamin D are biologically inactive pro-hormones that must undergo sequential hydroxylations in the liver and the kidney before they can bind to and activate the vitamin D receptor. The hormonally active form of vitamin D, 1,25-dihydroxyvitamin D3 $[1,25(OH)_2D]$, plays an essential role in calcium and phosphate metabolism, bone growth, and cellular differentiation. Renal synthesis of $1,25(OH)_2D$ from its endogenous precursor, 25-hydroxyvitamin D (25OHD), is the rate-limiting and is catalyzed by the $1{\alpha}$-hydroxylase. Vitamin D dependent rickets type I (VDDR-I), also referred to as vitamin D $1{\alpha}$-hydroxylase deficiency or pseudovitamin D deficiency rickets, is an autosomal recessive disorder characterized clinically by hypotonia, muscle weakness, growth failure, hypocalcemic seizures in early infancy, and radiographic findings of rickets. Characteristic laboratory features are hypocalcemia, increased serum concentrations of parathyroid hormone (PTH), and low or undetectable serum concentrations of $1,25(OH)_2D$ despite normal or increased concentrations of 25OHD. Recent advances have showed in the cloning of the human $1{\alpha}$-hydroxylase and revealed mutations in its gene that cause VDDR-I. This review presents the biology of vitamin D, and $1{\alpha}$-hydroxylase mutations with clinical findings.

• Clinical and Experimental Pediatrics
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• 제51권8호
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• pp.812-819
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• 2008

목 적 : 비타민 D는 뼈의 무기질화에 필수적인 역할을 하는 호르몬으로 부족하게 되면 구루병이 생길 수 있다. 본 연구는 비타민 D 결핍증이 잘 발생하는 위험군을 알아보고 그 예방 대책에 대한 관심을 고지하고자 계획하게 되었다. 방 법 : 2003년 3월부터 2007년 7월까지 노원을지병원 소아과에 내원한 환아들중에서 검사 상 우연히 알칼리성인산분해효소가 증가해 있으면서 방사선사진으로 무증상 구루병으로 진단받은 환아들에 대하여 후향적으로 그 특징과 치료 경과를 조사하였다. 결 과 : 남아 6명과 여아 2명의 총 8명이 무증상 구루병으로 진단되었다. 이들의 진단 시 연령은 $12.6{\pm}5.8$개월이었으며, 1월부터 7월 사이에 진단되었고 동반질환으로 폐렴, 요로감염, 장염, 철결핍성 빈혈이 있었다. 이들은 모두 모유 수유를 위주로 하고 있었고, 진단당시 2명의 환아가 몸무게가 3백분위수 미만으로 성장 장애를 보이고 있었다. 진단 시 평균 혈중 알칼리성인산분해효소는 $1,995.8{\pm}739.5IU/L$로 증가되어 있었고, 평균 혈중 칼슘은 $9.5{\pm}0.6mg/dL$, 평균 혈중 인은 $3.6{\pm}1.5mg/dL$였다. 평균 intact-PTH는 $214.8{\pm}155.9pg/mL$로 증가되어 있었고 25-hydroxyvitamin D는 2명을 제외한 6명의 환아에서 30 ng/mL 미만으로 감소되어 있었다. 모든 환자들은 손목 방사선 촬영에서 구루병양 변화를 보이고 있었으나 외관상 골기형이나 발달 장애는 없었다. 이들 중 6명은 3개월간 calcitriol을 투여한 후 생화학적인 검사와 손목 방사선 사진 상의 변화는 호전되었고 정상적으로 성장하였다. 2명은 치료하지 않은 채 저절로 호전되었으며 역시 외관상 성장장애를 보이지는 않았으나 2년간의 추적 관찰 후 현재 1명은 무릎 관절면의 골간단 이형성을 보이고 있으며 다른 1명은 일시적인 척추 측만증을 보였다가 호전되고 있다. 결 론 :무증상 구루병으로 진단된 환아들이 비타민 D 결핍이나 부족으로 인한 것으로 생각되며 모유 수유아에서 비타민 D 결핍증의 빈도가 높으므로 알칼리성인산분해효소가 높은 환자에서는 이를 의심하여 25-hydroxyvitamin D와 손목 방사선 사진을 검사하여 확인하여야 하며 이들 중 일부는 비타민 D 결핍성 구루병으로 진행할 수 있으므로, 모유 수유아에서 비타민 D 보충에 대한 교육이 필요하리라 생각된다.

• Journal of Nutrition and Health
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• 제29권8호
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• pp.881-888
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• 1996

The purpose of this study was to determine whether vitamin B6(B6) deficiency affects fuel utilization and blood cholesterol profile with exercise-training. Twenty-four rats were fed a B6 deficient(-B6) diet or a control (+B6) diet for 5 weeks and either exercised(EX) or nonexercised (NE). EX rats were exercised on treadmill(10$^{\circ}$, 0.5-0.8km/h) for 20 minutes everyday. Glucose(GLU), glycogen (GLY), protein(PRO), trglyceride(TG), free fatty acid(FFA), total cholesterl(TC), HDL-cholesterol(HDL-C) and LDL-choleterol(LDL-C) were compared in plasma(P), liver(L) and skeletal muscle(M) of rats. There was a vitamin effect on the level of P-GLU, P-TG, M-TG, L-GLY, L-PRO and an exercise effect on the level of P-PRO, P-FFA, M-PRO, L-GLY, L-TG, P-TC, P-HDL-C, P-LDL-C. Compared to +B6 rats were lower and there were no differences in P-GLU, P-FFA, P-TG. M-GLY, L-TG, P-TC and P-HDL-C. In EX group, the level of P-TG was higher and M-PRO was lower in -B6 rats. There were no differences in M-GLY, L-TG, P-TC and P-HDL-C. These results suggest that a lowered intake of vitamin B6 may impair the adaptation of animals to fuel metabolism related to a decrease of fatty acid oxidation and attenuates the exercise-traning effect on blood lipid profile.

• Clinical and Experimental Pediatrics
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• 제58권8호
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• pp.283-287
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• 2015

Purpose: We assessed the relationships between iron and vitamin D statuses in breastfed infants and their mothers and evaluated the determinants of iron and vitamin D deficiencies in breastfed infants. Methods: Seventy breastfed infants aged 4-24 months and their mothers participated in this study from February 2012 to May 2013. Complete blood counts, total iron binding capacity, and levels of C-reactive protein, iron, ferritin, calcium, phosphate, alkaline phosphatase, and 25-hydroxyvitamin D (25(OH)D) in infants and their mothers were measured. Results: A history of maternal prepregnancy anemia was associated with lower ferritin and 25(OH)D levels in both infants and their mothers. The 25(OH)D level of infants correlated with maternal 25(OH) D levels. The independent risk factors for iron deficiency in breastfed infants were the duration of breastfeeding (odds ratio [OR], 6.54; 95% confidence interval [CI], 1.09-39.2; P=0.04) and infant body weight (OR, 2.65; 95% CI, 1.07-6.56; P=0.04). The determinants for vitamin D deficiency were the infant's age (OR, 0.15; 95% CI, 0.02-0.97; P=0.046) and maternal 25(OH)D level (OR, 0.74; 95% CI, 0.59-0.92; P=0.01). Conclusion: A maternal history of prepregnancy anemia requiring iron therapy was associated with lower current ferritin and 25(OH)D levels in both infants and their mothers. Therefore, physicians should monitor not only iron but also vitamin D levels in infants who are breastfed by mothers who had prepregnancy anemia.

• Asian Pacific Journal of Cancer Prevention
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• 제15권1호
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• pp.129-132
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• 2014

Background: The true association between breast cancer and vitamin D is currently under investigation. We compared serum 25-hydroxy-vitamin D levels in women with benign and malignant breast masses and controls. Materials and Methods: Levels of vitamin D were measured by electrochemiluminescense. Serum levels >35 ng/ml, 25-35 ng/ml, 12.5-25 ng/ml and <12.5 ng/ml were considered as normal, mild, moderate and severe vitamin D deficiency, respectively. Results: Overall, 364 women were included in the control, 172 in the benign and 136 in the malignant groups. The median serum vitamin D level was significantly lower in breast cancers than controls. Levels were also lower in malignant than benign cases and in benign cases than controls although statistically non-significant. Conclusions: Multinomial logistic regression analysis showed that severe vitamin D deficiency causes a three-fold increase in the risk of breast cancer while this was not the case for moderate and mild deficiency.

• 대한두개안면성형외과학회지
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• 제22권1호
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• pp.33-37
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• 2021

Background: Children with cleft lip and/or palate can be undernourished due to feeding difficulties after birth. A vicious cycle ensues where malnutrition and low body weight precludes the child from having the corrective surgery, in the absence of which the child fails to gain weight. This study aimed to identify the proportion of malnutrition, including the deficiency of major micronutrients, namely iron, folate and vitamin B12, in children with cleft lip and/or palate and thus help in finding out what nutritional interventions can improve the scenario for these children. Methods: All children less than 5 years with cleft lip and/or cleft palate attending our institute were included. On their first visit, following were recorded: demographic data, assessment of malnutrition, investigations: complete blood count and peripheral blood film examination; serum albumin, ferritin, iron, folate, and vitamin B12 levels. Results: Eighty-one children with cleft lip and/or palate were included. Mean age was 25.37±21.49 months (range, 3-60 months). In 53% of children suffered from moderate to severe wasting, according to World Health Organization (WHO) classification. Iron deficiency state was found in 91.6% of children. In 35.80% of children had vitamin B12 deficiency and 23.45% had folate deficiency. No correlation was found between iron deficiency and the type of deformity. Conclusion: Iron deficiency state is almost universally present in children with cleft lip and palate. Thus, iron and folic acid supplementation should be given at first contact to improve iron reserve and hematological parameters for optimum and safe surgery.

• Asian Pacific Journal of Cancer Prevention
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• 제15권8호
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• pp.3391-3396
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• 2014

Background: Vitamin D has been suggested as one of the critical factors for female reproductive health with protective activities against different cancers but there are conflicting facts regarding its role on breast cancer without any clear data on premenopausal cases. This study aimed to evaluate the role of vitamin D from dietary sources and sunlight exposure on the incidence of premenopausal breast cancer. Materials and Methods: We conducted a case control study on 60 newly diagnosed premenopausal breast cancer patients and 116 normal women who lived in Sabzevar and surrounding villages in Razavi, Khorasan, a rural and conservative area of Iran. Results: The mean concentrations of 25-OH vitamin D in cases and controls were $15.2{\pm}8.15$ vs $15.5{\pm}7/45ng/ml$, both well below normal values elsewhere. In fact 50% of analyzed individuals showed very severe or severe vitamin D deficiency and the rest (25%) were detected in suboptimal levels. Although the lack of vitamin D and calcium supplementation increased slightly the risk of premenopausal breast cancer (p=0.009, OR=1.115, CI 95%=1.049-1.187), higher prevalence of weekly egg consumption (86.66% vs 96.55%, p=0.023, OR=0.232, CI 95% 0.065-0.806) showed a slight protective role. The last but the most important risk factor was lack of sunlight exposure because the breast cancer patients had total body coverage from sun (p=0.007, OR=10.131, CI 98% 0.314-78.102). Conclusion: This study pointed out the role of vitamin D and other possible risk factors on the development and growth of breast tumors in this special geographical region. Although this study has revealed the interactions between hormonal and environmental factors in this province of Iran, understanding the deficiency pattern and its contribution to other lifestyle factors elsewhere is also necessary.

• 한국학교보건학회지
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• 제29권1호
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• pp.22-32
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• 2016

Purpose: This study is intended to analyze factors of metabolic syndrome and vitamin D deficiency with resources obtained from the Korea National Health and Nutrition Examination Survey (KNHANES) V conducted in 2010. Methods: The subjects were 870 adolescents aged from 10 to 18 who participated in the first KNHANES V. Secondary data analysis was done by Chi-square, ANOVA, correlation analysis and simple linear regression. Results: The influencing factors of metabolic syndrome were vitamin D, systolic blood pressure and diastolic blood pressure, which were statistically significant. Simple linear regression was conducted to identify the influence of vitamin D on the factors related to metabolic syndrome, which showed that waist size (t=-1.97, p<.05), systolic blood pressure (t=-2.88, p<.01), and diastolic blood pressure (t=-5.72, p<.001) were influenced by vitamin D. In addition, each factor decreased by .131, .209, and .355, respectively, when vitamin D increased by one unit. Conclusion: Metabolic syndrome is a factor to be considered in order to improve adolescent health and form adolescent health behaviors. Schools, families, and local communities should cooperate with each other on the foundation of a regular health screening process and systematic health education programs. In addition, it is expected enhanced physical activities and sports club participation can prevent metabolic syndrome and increase vitamin D among adolescent.