scholarly journals VITAMIN D, CALCIUM AND PHOSPHOR IN PATIENTS WITH β-THALASSEMIA MAJOR

2019 ◽  
Vol 26 (1) ◽  
pp. 6
Author(s):  
Ade Hariza Harahap
Keyword(s):  
Vitamin D ◽  
Venous Blood ◽  
Hypovitaminosis D ◽  
Normal Subjects ◽  
Causative Factor ◽  
Thalassemia Major ◽  
Correlation Study ◽  
Bone Fragility ◽  
Total Calcium ◽  
Marrow Expansion

There has been many reports that patients with β-thalassemia major have bone problems such as thinning of the bone, bone fragility and pathological fractures. For so many years it was believed that the bone problems is mainly caused by marrow expansion due to compenstation of the bone marrow to handle the chronic anaemia and hiypoxia in β-thalassemia major. Recently, there is evidence to suggest that in β-thalassemia major there is hypocalcemia and hypovitaminosis D. So, this study is to clarify if hypovitaminosis D is trully the cause of bone problem in thalassemia. Forty five subjects were recruited in this study, 35 were β-thalassemia major patients and 10 normal subjects as controls. Ten mL of venous blood were taken from median vein for investigations of total vitamin D [25(OH) vitamin D], total calcium and phosphor using the Enzyme-Linked Fluorescent Assay (ELFA), metallochromic dye (Arsenazo III) and chemical reaction of inorganic phosphate with amonium mollybdate respectily. Mean ± SD of vitamin D in β-thalassemia major is 21.28 ± 6.36 ng/ml and in control 34.85 ± 3.50 ng/ml (p<0.05); total calcium in β-thalassemia major is 8.58 ± 0.68 mg/dl and in control 9.22 ± 0.35 mg/dl (p<0.05); and phosphor in β-thalassemia major 3.98 ± 0.53 mg/dl and control  3.89 ± 0.49 mg/dl (p>0.1). There was no significant correlation (r = 0.17, p>0.05), when vitamin D was analysed against calcium for the correlation study,. This study demostrates that there was state of hypovitaminosis D and hypocalcemia in β-thalassemia major but hypovitaminosis D is not the only causative factor of the calcium levels. There should be another factor responsible for the calcium levels in β-thalassemia major and marrow expansion may remain the factors responsible for bone abnomarlities.

scholarly journals Age, Gender and Season Are Good Predictors of Vitamin D Status Independent of Body Mass Index in Office Workers in a Subtropical Region

Nutrients ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2719 ◽  
Author(s):  
Li-Kai Wang ◽  
Kuo-Chuan Hung ◽  
Yao-Tsung Lin ◽  
Ying-Jen Chang ◽  
Zhi-Fu Wu ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Vitamin D ◽  
Body Mass ◽  
Hypovitaminosis D ◽  
Office Workers ◽  
Vitamin D Status ◽  
Total Calcium ◽  
Subtropical Region ◽  
Tertiary Referral Center ◽  
Hydroxyvitamin D

This study aimed at determining the prevalence and predictors of hypovitaminosis D (serum 25-hydroxyvitamin D < 30 ng/mL) among office workers in a subtropical region from an electronic hospital database. Totally, 2880 office workers aged 26–65 years who received health examinations with vitamin D status and total calcium concentrations at a tertiary referral center were retrospectively reviewed. Subjects were divided into groups according to genders, age (i.e., 26–35, 36–45, 46–55, 56–65), body-mass index (BMI) (i.e., obese BMI ≥ 30, overweight 25 ≤ BMI < 30, normal 20 ≤ BMI < 25, and underweight BMI < 20) and seasons (spring/winter vs. summer/autumn) for identifying the predictors of hypovitaminosis D. Corrected total calcium level <8.4 mg/dL is considered as hypocalcemia. Multivariate logistic regression demonstrated that females (AOR 2.33, (95% CI: 1.75, 3.09)), younger age (4.32 (2.98, 6.24), 2.82 (1.93, 4.12), 1.50 (1.03, 2.17)), and season (winter/spring) (1.55 (1.08, 2.22)) were predictors of hypovitaminosis D, whereas BMI was not in this study. Despite higher incidence of hypocalcemia in office workers with hypovitaminosis D (p < 0.001), there was no association between vitamin D status and corrected total calcium levels. A high prevalence (61.9%) of hypovitaminosis D among office workers in a subtropical region was found, highlighting the importance of this occupational health issue.

scholarly journals Cord blood 25-hydroxy Vitamin D and Fluoride in newborn with congenital anomalies

2020 ◽  
Vol 11 (3) ◽  
pp. 17-21
Author(s):  
Abhra Ghosh ◽  
Jagriti Bhardwaj
Keyword(s):  
Vitamin D ◽  
Cord Blood ◽  
Congenital Anomalies ◽  
Pearson Correlation ◽  
Hypovitaminosis D ◽  
Causative Factor ◽  
Group I ◽  
Vitamin D Levels ◽  
Pearson Correlation Test ◽  
25 Hydroxy Vitamin D

Background: It is well known that deficiency of 25 - hydroxy Vitamin D can cause various musculoskeletal manifestations as well as metabolic, non-musculoskeletal abnormalities. There may be a chance that hypovitaminosis D can act as a causative factor for congenital anomalies. Aims and Objectives: The present study was planned to evaluate the level of 25 - hydroxy Vitamin D in cord blood in cases of congenital anomalies and its association with cord blood fluoride levels in newborns with visible congenital anomalies. Materials and Methods: Thirty newborns with visible congenital anomalies were included in group I and thirty healthy newborns without any congenital anomalies were included group II. Ten mL cord blood was collected from the placental end of umbilical cord immediately after delivery of the baby and serum was separated. Serum 25 - hydroxy Vitamin D and fluoride were analyzed by standard methods. Statistical analysis: Results were expressed as Mean ± SD. Unpaired ‘t’ test and Pearson correlation test were applied. Data were considered to be significant if p < 0.05. Results: Serum 25 - hydroxy Vitamin D levels were significantly decreased in babies with congenital anomalies (p=0.001) and show a significant negative association with fluoride.Anomalies related to central nervous system and musculoskeletal systems had the lowest 25 - hydroxy Vitamin D levels and highest serum fluoride levels than other anomalies of other systems. Conclusion: Fluoride can acts as an inhibitor for activation of calciferol causing a decrease in 25 - hydroxy Vitamin D levels. Thus 25 - hydroxy Vitamin D is an important micronutrient for proper development of the fetus and association of it with excess fluoride can cause congenital anomalies.

scholarly journals The evaluation of 25(OH)D concentration in blood serum of chronic heart failure patients

2016 ◽  
Vol 29 (3) ◽  
pp. 107-110
Author(s):  
Tomasz Lewandowski ◽  
Andrzej Baginski ◽  
Arleta Malecha-Jedraszek ◽  
Jerzy Mosiewicz ◽  
Helena Donica
Keyword(s):  
Heart Failure ◽  
Vitamin D ◽  
Chronic Heart Failure ◽  
Statistical Significance ◽  
Venous Blood ◽  
Control Group ◽  
Total Calcium ◽  
Phosphate Homeostasis ◽  
Creatinine Concentration ◽  
Inorganic Phosphates

Abstract This current study examined patients with severe chronic heart failure (CHF) in order to ascertain the held vitamin D, based on an assessment of calcidiol [25(OH)D] concentration. It also identified and evaluated possible correlations between 25(OH)D level and the concentration of total calcium, inorganic phosphates and creatinine concentration in their serum. Herein, venous blood samples were taken from 36 patients with CHF. Diagnosis was confirmed by echocardiographic, as well as by electrocardiographic examinations. In this work, the control group consisted of 41 randomly selected healthy individuals. The results of our study showed that CHF patients had significantly lower concentration of 25(OH)D, as well as total calcium and inorganic phosphates. Moreover, mean creatinine concentration was higher, in comparison to the control group, but did not exhibit statistical significance. As calcium-phosphate homeostasis is regulated by numerous factors, including PTH, neurohormonal factors and calcitriol (1,25(OH)2D), it is possible that vitamin D deficiency may play a significant role in the pathomechanism of CHF, and a lowered 25(OH)D level may be related to progression of the disease.

scholarly journals Ethnic aspects of vitamin D deficiency

2014 ◽  
Vol 58 (5) ◽  
pp. 540-544 ◽  
Author(s):  
Aline Correia ◽  
Maria do Socorro Azevedo ◽  
Fernando Gondim ◽  
Francisco Bandeira
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
High Latitude ◽  
Sun Exposure ◽  
Hypovitaminosis D ◽  
Bone Fragility ◽  
Time Of Day ◽  
Tropical Regions ◽  
Increased Risk ◽  
Vitamin D Levels

Vitamin D deficiency has been linked to bone fragility in children and adults, and to an increased risk of chronic diseases. The main sources of vitamin D are the diet and cutaneous synthesis, the latter being the most important one, since foods are relatively poor in vitamin D. The main factors influencing this endogenous production are the seasons, the time of day, latitude and skin phototype. Due to the contribution of sun exposure in maintaining vitamin D levels, it would be expected that this deficiency would be more prevalent in countries at a high latitude; it has been shown, however, that hypovitaminosis D is commonly found in tropical regions such as Brazil. In high latitude regions in which extreme skin phototypes have been compared, the prevalence of vitamin D deficiency is more common in people with originally darker skin who have a natural barrier to the already lower UV irradiation penetrating the skin. In Brazil, particularly in the areas where sun rays are more abundant, the difference in sunlight exposure between subjects showed no significant variation in serum 25-hydroxyvitamin D (25OHD).

scholarly journals VITAMIN-D DEFICIENCY;

2017 ◽  
Vol 24 (09) ◽  
pp. 1437-1443
Author(s):  
Arif Malik ◽  
Bushra Shaheen ◽  
Muhammad Shahzad Farooq ◽  
Qura-Tul- Ain ◽  
Sulayman Waquar
Keyword(s):  
Oxidative Stress ◽  
Vitamin D ◽  
Free Radicals ◽  
Bone Cells ◽  
Bone Fractures ◽  
Normal Subjects ◽  
Bone Fragility ◽  
Osteoblastic Activity ◽  
Low Level ◽  
Post Menopausal

Background: Deficiency of vitamin D is characterized by the low bone masswhich leads to the bone fragility and high risk of fractures. Bone fractures causes the formationof free radicals, generated by the tissue damaged. Uncontrolled production of free radicalsaccelerates the oxidative stress and increased the bone remodeling process ultimatelycauses osteoporosis. One of the most damaging effects of free radicals is lipid peroxidation;end product of which is MDA, it also act as major factor in osteoblastic activity. Low level ofantioxidative defense system found in osteoporotic patients due to the deficiency of vitamin D.Many important mineral ions removed from bones and risk of bone fragility increases. Currentstudy is aim to check the antioxidative effect produced from excess reactive oxygen speciescompared with low level of vitamin D which is held responsible for higher or lower activityof bone cells. Study Design: Case Control Study. Setting: Study was conducted at Instituteof Molecular Biology and Biotechnology (IMBB), University of Lahore. Period of Study: Oneyear. Materials and Methods: Blood samples of 272 post-menopausal osteoporotic womenbetween the age 49-57 were collected from Jinnah hospital Lahore. While the samples of 92individuals were served as a control. Concentration of both enzymatic and non-enzymaticantioxidant such as CAT, GSH, SOD, GPx and GR, vitamin A, C and E and levels of MDAwere estimated spectrophotometrically. While the concentration of IL6, AOPPS, AGEs, TNF-α,MMP9, Isoprostanes, LDH, cholesterol, triglycerides, free fatty acids and phospholipid weremeasured by using commercially available Elisa kits. Results: Blood plasma levels of vitaminD were significantly lower in osteoporosis patients than in normal subjects. In addition, levelof stress biomarker such as MDA was found to be higher in patients as compared to control.Due to oxidative stress, level of antioxidants (GSH, CAT, and SOD) was found to be reduced.Blood cells and many other important minerals are also reduces in patient group from theirnormal amount. Conclusion: It concludes that excess production of free radicals over whelmsthe antioxidative system, thus it may leads to osteoporosis. Further more antioxidant speciessubjected to body might protect bone loss and also help in acceleration of healing of fracturedbones.

Profiling older community-dwellers with hypovitaminosis D: A classification tree analysis

2020 ◽  
Vol 90 (3-4) ◽  
pp. 195-199 ◽  
Author(s):  
Gaelle Chevallereau ◽  
Mathilde Legeay ◽  
Guillaume T. Duval ◽  
Spyridon N. Karras ◽  
Bruno Fantino ◽  
...  
Keyword(s):  
Vitamin D ◽  
Classification Tree ◽  
Hypovitaminosis D ◽  
Vitamin D Supplementation ◽  
Community Dwelling ◽  
Gait Disorders ◽  
Hydroxyvitamin D ◽  
Chaid Analysis ◽  
Clinical Profiles ◽  
Community Dwellers

Abstract. Despite the high prevalence of hypovitaminosis D in older adults, universal vitamin D supplementation is not recommended due to potential risk of intoxication. Our aim here was to determine the clinical profiles of older community-dwellers with hypovitaminosis D. The perspective is to build novel strategies to screen for and supplement those with hypovitaminosis D. A classification tree (CHAID analysis) was performed on multiple datasets standardizedly collected from 1991 older French community-dwelling volunteers ≥ 65 years in 2009–2012. Hypovitaminosis D was defined as serum 25-hydroxyvitamin D ≤ 50 nmol/L. CHAID analysis retained 5 clinical profiles of older community-dwellers with different risks of hypovitaminosis D up to 87.3%, based on various combinations of the following characteristics: polymorbidity, obesity, sadness and gait disorders. For instance, the probability of hypovitaminosis D was 1.42-fold higher [95CI: 1.27–1.59] for those with polymorbidity and gait disorders compared to those with no polymorbidity, no obesity and no sadness. In conclusion, these easily-recordable measures may be used in clinical routine to identify older community-dwellers for whom vitamin D supplementation should be initiated.

Vitamin D levels are not associated with non-alcoholic fatty liver disease severity in a Brazilian population

2020 ◽  
pp. 1-8
Author(s):  
Jeniffer Danielle M. Dutra ◽  
Quelson Coelho Lisboa ◽  
Silvia Marinho Ferolla ◽  
Carolina Martinelli M. L. Carvalho ◽  
Camila Costa M. Mendes ◽  
...  
Keyword(s):  
Vitamin D ◽  
Liver Disease ◽  
Fatty Liver ◽  
Disease Severity ◽  
Fatty Liver Disease ◽  
Hypovitaminosis D ◽  
Alcoholic Fatty Liver ◽  
Vitamin D Levels ◽  
The Mean ◽  
Alcoholic Fatty Liver Disease

Abstract. Some epidemiological evidence suggests an inverse correlation between non-alcoholic fatty liver disease (NAFLD) frequency and vitamin D levels. Likewise, a beneficial effect of vitamin D on diabetes mellitus (DM) and insulin resistance has been observed, but this is an unsolved issue. Thus, we aimed to investigate the prevalence of hypovitaminosis D in a NAFLD Brazilian population and its association with disease severity and presence of comorbidities. In a cross-sectional study, the clinical, biochemical and histological parameters of 139 NAFLD patients were evaluated according to two different cut-off points of serum 25-hydroxyvitamin D levels (20 ng/mL and 30 ng/mL). The mean age of the population was 56 ± 16 years, most patients were female (83%), 72% had hypertension, 88% dyslipidemia, 46% DM, 98% central obesity, and 82% metabolic syndrome. Serum vitamin D levels were < 30 ng/mL in 78% of the patients, and < 20 ng/mL in 35%. The mean vitamin D level was 24.3 ± 6.8 ng/mL. The comparison between the clinical, biochemical and histological characteristics of the patients according to the levels of vitamin D showed no significant difference. Most patients with NAFLD had hypovitaminosis D, but low vitamin D levels were not related to disease severity and the presence of comorbidities.

Vitamin D3 and women's health

GYNECOLOGY ◽  
2019 ◽  
Vol 21 (1) ◽  
pp. 44-51
Author(s):  
Iuliia E Dobrokhotova ◽  
Ekaterina I Borovkova ◽  
Sofya A Zalesskaya ◽  
Victoria S Skalnaya ◽  
Ivan M Borovkov ◽  
...  
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Vitamin D3 ◽  
Negative Impact ◽  
Perinatal Outcomes ◽  
Hypovitaminosis D ◽  
Malignant Neoplasms ◽  
Cellular Functions ◽  
Prophylactic Drug ◽  
Drug Doses

Background. Vitamin D is an essential component that regulates calcium homeostasis and many other cellular functions. Hypovitaminosis D is associated with a risk of osteopenia, obesity, type 1 and type 2 diabetes, malignant neoplasms and immune disorders. Inadequate vitamin D intake during pregnancy increases a risk of pre-eclampsia, preterm birth, low birth weight as well as it has a negative impact on both children’s and adolescents’ health. It is important for the clinician to be known administrating of vitamin D prophylactic and therapeutic regimens according to serum 25(OH)D levels. Aim. To determine causes and effects of vitamin D deficiency and to elaborate ways of their correction. Materials and methods. To write this review a search for domestic and foreign publications in Russian and international search systems (PubMed, eLibrary, etc.) for the last 2-15 years was conducted. The review includes articles from peer-reviewed literature. Results. The article shows that vitamin D has a significant impact on both the cardiovascular, endocrine, digestive, respiratory and other systems functioning and perinatal outcomes that necessitates vitamin D deficiency correction. It provides schemes for effective therapeutic and prophylactic drug doses calculating depending on vitamin D3 blood serum concentration. Conclusion. Preference should be given to cholecalciferol (vitamin D3) due to its better absorption properties and more efficient conversion to active vitamin metabolites (class IIC).

The effect of supplementation of vitamin D in neurocritical care patients: RandomizEd Clinical TrIal oF hYpovitaminosis D (RECTIFY)

2020 ◽  
Vol 133 (4) ◽  
pp. 1103-1112 ◽  
Author(s):  
Michael Karsy ◽  
Jian Guan ◽  
Ilyas Eli ◽  
Andrea A. Brock ◽  
Sarah T. Menacho ◽  
...  
Keyword(s):  
Patient Outcome ◽  
Clinical Trial ◽  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Vitamin D3 ◽  
Neurocritical Care ◽  
Hypovitaminosis D ◽  
Mean Difference ◽  
Saps Ii ◽  
Gcs Score

OBJECTIVEHypovitaminosis D is prevalent in neurocritical care patients, but the potential to improve patient outcome by replenishing vitamin D has not been investigated. This single-center, double-blinded, placebo-controlled, randomized (1:1) clinical trial was designed to assess the effect on patient outcome of vitamin D supplementation in neurocritical care patients with hypovitaminosis D.METHODSFrom October 2016 until April 2018, emergently admitted neurocritical care patients with vitamin D deficiency (≤ 20 ng/ml) were randomized to receive vitamin D3 (cholecalciferol, 540,000 IU) (n = 134) or placebo (n = 133). Hospital length of stay (LOS) was the primary outcome; secondary outcomes included intensive care unit (ICU) LOS, repeat vitamin D levels, patient complications, and patient disposition. Exploratory analysis evaluated specific subgroups of patients by LOS, Glasgow Coma Scale (GCS) score, and Simplified Acute Physiology Score (SAPS II).RESULTSTwo-hundred seventy-four patients were randomized (intent-to-treat) and 267 were administered treatment within 48 hours of admission (as-treated; 61.2% of planned recruitment) and monitored. The mean age of as-treated patients was 54.0 ± 17.2 years (56.9% male, 77.2% white). After interim analysis suggested a low conditional power for outcome difference (predictive power 0.12), the trial was halted. For as-treated patients, no significant difference in hospital LOS (10.4 ± 14.5 days vs 9.1 ± 7.9 days, p = 0.4; mean difference 1.3, 95% CI −1.5 to 4.1) or ICU LOS (5.8 ± 7.5 days vs 5.4 ± 6.4 days, p = 0.4; mean difference 0.4, 95% CI −1.3 to 2.1) was seen between vitamin D3 and placebo groups, respectively. Vitamin D3 supplementation significantly improved repeat serum levels compared with placebo (20.8 ± 9.3 ng/ml vs 12.8 ± 4.8 ng/ml, p < 0.001) without adverse side effects. No subgroups were identified by exclusion of LOS outliers or segregation by GCS score, SAPS II, or severe vitamin D deficiency (≤ 10 ng/ml).CONCLUSIONSDespite studies showing that vitamin D can predict prognosis, supplementation in vitamin D–deficient neurocritical care patients did not result in appreciable improvement in outcomes and likely does not play a role in acute clinical recovery.Clinical trial registration no.: NCT02881957 (clinicaltrials.gov)

Prevalence of Vitamin-D Deficiency in Patients with Acute Coronary Syndrome in Syria

2016 ◽  
Vol 9 (6) ◽  
pp. 3544-3548
Author(s):  
Aya Hallak ◽  
Malhis Mahmoud ◽  
Yaser Abajy Mohammad
Keyword(s):  
Vitamin D ◽  
Acute Coronary Syndrome ◽  
Vitamin D Deficiency ◽  
Hypovitaminosis D ◽  
Control Group ◽  
Coronary Syndrome ◽  
Normal Individuals ◽  
Vitamin D Levels ◽  
25 Hydroxy Vitamin D ◽  
Coronary Syndromes

The objectives of this study were to estimate the prevalence of vitamin D deficiency in patients with acute coronary syndrome in comparison with normal individuals and study the correlation between these two conditions. We measured the plasma 25-hydroxy vitamin D (25-OH-D) levels in 60 patients with acute coronary syndromes (ACS) of both gender and in 30 age matched control individuals of both gender without any known cardiovascular or systemic diseases. The levels of 25-OH-D were measured by ELISA method and the results were statically analyzed to find out any possible correlation. We classified the cases according to their plasma 25(OH)D levels. 25(OH)D levels of ≥ 30 ng/ml were considered normal, levels < 30 and > 20 ng/ml were classified as insufficient, while levels of ≤ 20 ng/ml were classified as deficient. In the current study the prevalence of hypovitaminosis D in the patients group was much higher than it was in the control group. Vitamin D deficiency was observed in 80% and insufficiency in 13% of total patients of ACS, there by bringing the total count to 93%. Whereas only 7% of the patients had adequate vitamin D levels. Thus, these results indicate the existence of a significant correlation between the vitamin D deficiency and ACS in comparison to healthy controls

Sign in / Sign up

Export Citation Format

Share Document