scholarly journals Serum 25- OH Vitamin D and Parathyroid Hormone Levels in Beta Thalassemia Patients

Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 4574-4574 ◽  
Author(s):  
Emine Türkkan ◽  
Burcu Tufan Tas ◽  
Suheyla Ocak
Keyword(s):  
Vitamin D ◽  
Parathyroid Hormone ◽  
Vitamin D Deficiency ◽  
Patient Group ◽  
Healthy People ◽  
Beta Thalassemia ◽  
Control Group ◽  
Hormone Levels ◽  
Vitamin D Levels ◽  
25 Oh Vitamin D

Abstract Introduction: The survival of the patients with thalassemia has progressively improved with advances in therapy, however, increased survival allowed for several complications of disease. Metabolism of vitamin D affected in patients with thalassemia, due to accumulation of iron in the liver as the skin. The aim of this study is to compare vitamin D and parathyroid hormone (PTH) levels between patients with thalassemia and healthy control group. Methods: In pediatric hematology clinic, 33 patients (23 male, 10 female) with beta thalassemia major and 33 age-sex matched healthy people as a control group were included. Serum 25- OH Vitamin D levels were defined as normal >30 ng/ml, insufficiency between 20-30 ng/ml and deficiency < 20 ng/ml and PTH levels as normal between 10-65 pg/ml, decreased <10 pg/ml, and increased >65 pg/ml. Results: Mean age was 23.02+8.18 years old in patient group and 23+ 8.16 in control group. %33.3 of the patients had 25-OH vitamin D insufficiency and %30.3 of had 25-OH vitamin D deficiency. In different studies, the 25-OH vitamin D deficiency found between %12-90, and insufficiency between % 24.7-69.8 of the thalassemic patients. %81.8 of the patients had normal PTH levels, %18.2 decreased and none of the patients were found increased. In literature, there were confluent results about PTH levels in thalassemic patients, some of the studies showed hypoparathyroidism, and some of hyperparathyroidism or normal levels of PTH (Vogiatzi Br J Haematol 2009, Moulas Acta Paediatrica 1997, Merchant Indian J Pediatr 2011). In our study we couldn't show hyperparathyroidism in patient group. Also we found parathyroid hormone levels were significantly lower (p<0.001), while 25-OH vitamin D levels were significantly higher (p<0.05), in patients with thalassemia than in control group. This result was interestingly showed that, normal population in our country may be low levels of vitamin D. So we need more studies about PTH and vitamin D levels of healthy people, not only thalassemic patients in our country. Disclosures No relevant conflicts of interest to declare.

scholarly journals Biochemical changes associated with temporomandibular disorders

2018 ◽  
Vol 47 (2) ◽  
pp. 765-771 ◽  
Author(s):  
Canser Yilmaz Demir ◽  
Muhammet Eren Ersoz
Keyword(s):  
Vitamin D ◽  
Parathyroid Hormone ◽  
Vitamin D Deficiency ◽  
Temporomandibular Disorders ◽  
Group Differences ◽  
Hormone Levels ◽  
Vitamin D Levels ◽  
Calcium Magnesium ◽  
25 Oh Vitamin D ◽  
The Impact

Objective To assess vitamin D, parathyroid hormone, calcitonin, calcium, phosphorus and magnesium levels in patients with versus without temporomandibular disorders (TMDs). Methods This prospective observational study included patients with TMDs and age-matched healthy controls. TMDs were diagnosed via physical and radiologic examination, and serum levels of 25 (OH) vitamin D, parathyroid hormone, calcitonin, calcium, magnesium, and phosphorus were determined. The impact of age, sex and seasonal variations in serum 25 (OH) vitamin D levels was controlled by the inclusion of age, sex and date-matched control patients. Results The study included 100 patients, comprising 50 patients with TMDs and 50 control patients. No statistically significant between-group differences were found regarding age or sex. No statistically significant between-group differences were found in terms of serum 25 (OH) vitamin D, calcitonin, calcium, magnesium or phosphorus levels. Parathyroid hormone levels were statistically significantly higher in patients with TMDs versus healthy control patients. Conclusion In patients with temporomandibular disorders, increased parathyroid hormone levels in response to vitamin D deficiency was significantly more prominent. These data suggest that, in patients with temporomandibular disorders, vitamin D deficiency should be assessed and corrected.

Relationship of Vitamin D Deficiency and Intraoperative Parathyroid Hormone Elevation in Completion and Total Thyroidectomy

2019 ◽  
Vol 160 (4) ◽  
pp. 612-615 ◽  
Author(s):  
Bradley R. Lawson ◽  
Andrew M. Hinson ◽  
Jacob C. Lucas ◽  
Donald L. Bodenner ◽  
Brendan C. Stack
Keyword(s):  
Vitamin D ◽  
Parathyroid Hormone ◽  
Secondary Hyperparathyroidism ◽  
Total Thyroidectomy ◽  
Vitamin D Deficiency ◽  
Case Series ◽  
Hormone Levels ◽  
Parathyroid Autotransplantation ◽  
Vitamin D Levels ◽  
Intraoperative Parathyroid Hormone

Objective To quantify how frequently intraoperative parathyroid hormone levels increase during thyroid surgery and to explore a possible relationship between secondary hyperparathyroidism due to vitamin D deficiency and elevation in intraoperative parathyroid hormone. Study Design Case series with chart review. Setting Tertiary academic center. Subjects and Methods A total of 428 consecutive patients undergoing completion and total thyroidectomy by the senior author over a 7-year period were included for analysis. All patients had baseline and postexcision intraoperative parathyroid hormone levels as well as vitamin D levels from the same laboratory. Institute of Medicine criteria were employed for vitamin D stratification (>30, normal; 20-29.9, insufficient; <20, deficient) . Other data analyzed include sex, age, neck dissection status, and parathyroid autotransplantation. Results A total of 118 patients (27.6%) had an intraoperative parathyroid hormone elevation above baseline. Patients with vitamin D deficiency were significantly more likely to experience hormone elevation ( P = .04). When parathyroid hormone rose, it did so by a mean 32.1 pg/mL. Patients with vitamin D deficiency demonstrated significantly larger hormone increases ( P = .03). Conclusion Elevation in intraoperative parathyroid hormone levels above baseline after completion and total thyroidectomy occurs in over one-fourth of cases and is significantly associated with vitamin D deficiency. This study is the first to report this observation. We hypothesize that vitamin D deficiency in these patients may create a subclinical secondary hyperparathyroidism that leads to intraoperative parathyroid hormone elevation when the glands are manipulated. Additional studies will be needed to explore this physiologic mechanism and its clinical significance.

scholarly journals Analysis of Changes in Parathyroid Hormone and 25 (OH) Vitamin D Levels with Respect to Age, Gender and Season: A Data Mining Study

2017 ◽  
Vol 36 (1) ◽  
pp. 73-83 ◽  
Author(s):  
Muhittin A. Serdar ◽  
Başar Batu Can ◽  
Meltem Kilercik ◽  
Zeynep A. Durer ◽  
Fehime Benli Aksungar ◽  
...  
Keyword(s):  
Vitamin D ◽  
Parathyroid Hormone ◽  
Vitamin D Deficiency ◽  
Large Data ◽  
Seasonal Effects ◽  
Data Set ◽  
Vitamin D Levels ◽  
25 Oh Vitamin D ◽  
And Gender ◽  
Opposite Response

SummaryBackground:25 (OH) vitamin D3 (25(OH)D) and parathyroid hormone (PTH) are important regulators of calcium homeostasis. The aim of this study was to retrospectively determine the cut–off for sufficient 25(OH)D in a four-season region and the influence of age, seasons, and gender on serum 25(OH)D and PTH levels.Methods:Laboratory results of 9890 female and 2723 male individuals aged 38.8±22.1 years who had simultaneous measurements of 25(OH)D and PTH were retrospectively analyzed by statistical softwares. Serum 25(OH)D and PTH levels were measured by a mass spectrometry method and by an electrochemiluminescence immunoassay, respectively.Results:Mean serum 25(OH)D levels showed a sinusoidal fluctuation throughout the year and were significantly (p<0.01) higher in summer and autumn. On the other hand, PTH levels were significantly higher (p<0.01) in women and showed an opposite response to seasonal effects relative to 25(OH)D. Lowest levels of 25(OH)D were detected in people aged between 20 and 40 years whereas PTH hormone levels were gradually increasing in response to aging. The significant exponential inverse relationship that was found between PTH and 25(OH)D (PTH=exp(4.12–0.064*sqrt(25(OH)D)) (r=−0.325, R–squared=0.105, p<0.001)) suggested that the cut–off for sufficient 25(OH)D should be 75 nmol/L.Conclusions:Our retrospective study based on large data set supports the suitability of the currently accepted clinical cut–off of 75 nmol/L for sufficient 25(OH)D. However, the issue of assessing Vitamin D deficiency remains difficult due to seasonal variations in serum 25(OH)D. Therefore, PTH measurements should complement 25(OH)D results for diagnosing Vitamin D deficiency. It is imperative that seasonally different criteria should be considered in future.

The relationship between vitamin D deficiency and thoracic aortic dilatation

VASA ◽  
2012 ◽  
Vol 41 (6) ◽  
pp. 419-424 ◽  
Author(s):  
Demir ◽  
Uyan ◽  
Melek
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Control Group ◽  
Aortic Dilatation ◽  
Vitamin D Levels ◽  
Significant Difference ◽  
Echocardiographic Parameters ◽  
Basic Characteristics ◽  
Artery Disease ◽  
25 Oh Vitamin D

Background: Vitamin D deficiency can play a role in cardiovascular conditions, such as coronary artery disease, heart failure and hypertension. Vitamin D deficiency can activate the renin-angiotensin-aldosterone system, which in turn affects the cardiovascular system. Thus, a relationship between vitamin D deficiency and thoracic aortic dilatation (TAD) and aneurysm could be postulated. In this study, we compared 25-OH vitamin D levels between TAD and control groups. Patients and methods: This study included 87 patients with TAD who were 40 - 70 years old. The control group consisted of 93 patients who were 40 - 70 years old and did not have TAD. A transthoracic echocardiography was performed on each patient. Along with routine tests, the 25-OH vitamin D and parathormone (PTH) levels were analyzed. Results: No statistically significant difference was found between the two groups regarding their basic characteristics. The average PTH level of the TAD group was higher than that of the control group (94.87 ± 44.96 and 66.39 ± 30.58 pg/ml, respectively; p < 0.001). The average 25-OH vitamin D level of the TAD group was lower than that of the control group (11.89 ± 7.54 and 15.98 ± 4.98 ng/ml, respectively; p = 0.001). The initial conventional echocardiographic parameters of both groups were comparable. Logistic regression analysis revealed that the PTH and 25-OH vitamin D levels were independent predictors of TAD. Conclusions: Vitamin D deficiency was found as an independent factor associated with TAD.

scholarly journals Assessment of vitamin D levels in zona zoster

2021 ◽  
Author(s):  
göktürk dere ◽  
Murat Ozturk
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Mean Value ◽  
Vitamin D Supplementation ◽  
Control Group ◽  
Toll Like Receptor ◽  
Varicella Zoster ◽  
Vitamin D Levels ◽  
The Mean ◽  
25 Oh Vitamin D

Aim: Vitamin D affects the secretion of antimicrobial peptides associated with toll-like receptor (TLR), which have antiviral effects. It has been suggested that vitamin D may affect the susceptibility of the host to varicella zoster virus (VZV) and the clinical course of zona zoster. Materials and Methods: In this study, 101 patients who were diagnosed with zona zoster at the dermatology outpatient clinic and had a vitamin D result at the time of diagnosis and a control group of 100 people were included. Results were analyzed statistically. Results: The 25-OH vitamin D levels of the patients ranged from 2.37 to 32.98 µg / L and the mean value was 14.25 ± 7.20 µg / L. In the control group, 25-OH vitamin D levels ranged between 10.3 and 44.25 µg / L, and the mean value was 24.9 ± 6.24 µg / L. 25-OH vitamin D levels in the patient group were significantly lower than the levels in the control group. (p <0.001) Conclusion: This study revealed that 25-OH vitamin D levels were significantly lower in patients with zona zoster compared to the control group. 25-OH vitamin D deficiency may increase the risk of VZV reactivation, and vitamin D supplementation in patients with vitamin D deficiency in zona zoster may help the mild course of the disease.

scholarly journals An Unusual Case of Hypercalcemia Associated with Graves’ Disease and Vitamin D Deficiency

2011 ◽  
Vol 4 ◽  
pp. CMED.S7116 ◽  
Author(s):  
Evgenia Korytnaya ◽  
Nagashree Gundu Rao ◽  
Jane V. Mayrin
Keyword(s):  
Vitamin D ◽  
Parathyroid Hormone ◽  
Vitamin D Deficiency ◽  
Serum Calcium ◽  
Graves Disease ◽  
Hydroxyvitamin D ◽  
Vitamin D Levels ◽  
Calcium Phosphorus ◽  
25 Hydroxyvitamin D ◽  
25 Oh Vitamin D

Objective To present a case of hypercalcemia associated with thyrotoxicosis in a patient with vitamin D deficiency and review biochemical changes during the course of treatment. Methods We report a case, describe the changes in serum calcium, phosphorus, parathyroid hormone in Graves’ disease and concomitant Vitamin D deficiency. We compare our findings to those reported in literature. Results Our patient had hypercalcemia secondary to thyrotoxicosis alone, which was confirmed by low parathyroid hormone level and resolution of hypercalcemia with treatment of thyrotoxicosis. The case was complicated by a concomitant vitamin D deficiency. Serum calcium elevation in patients with thyrotoxicosis occurs secondary to hyperthyroidism alone or due to concurrent hyperparathyroidism. Hypercalcemia from thyrotoxicosis is usually asymptomatic and is related to bone resorption. Vitamin D deficiency can be seen in patients with thyrotoxicosis because of accelerated metabolism, poor intestinal absorption and increased demand during bone restoration phase. Coexistence of hypercalcemia and Vitamin D deficiency in patients with thyrotoxicosis is rare, but possible, and 25-hydroxyvitamin D levels should be checked. The definite treatment for hypercalcemia in thyrotoxicosis is correction of thyroid function. Conclusion Hypercalcemia in thyrotoxicosis should be distinguished from concomitant hyperparathyroidism and confirmed by resolution of hypercalcemia with control of thyrotoxicosis. Patients with hypercalcemia and thyrotoxicosis may also have vitamin D deficiency and 25-OH Vitamin D levels should be checked.

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

Abstract 121: Vitamin D Deficiency Study in Postural Orthostatic Tachycardia Syndrome

2015 ◽  
Vol 8 (suppl_2) ◽  
Author(s):  
Chandralekha Ashangari ◽  
Amer Suleman
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Electronic Medical Records ◽  
Vitamin D3 ◽  
Medical Records ◽  
Postural Orthostatic Tachycardia Syndrome ◽  
Vitamin D Levels ◽  
The World ◽  
25 Oh Vitamin D ◽  
Vitamin D3 Deficiency

Objectives The aim of this study is to assess vitamin D levels, including the prevalence of vitamin D deficiency/insufficiency in Postural Orthostatic Tachycardia Syndrome (POTS) patients. Background : The Postural Orthostatic Tachycardia Syndrome (POTS) affects primarily young women. POTS is a form of dysautonomia that is estimated to impact between 1,000,000 and 3,000,000 Americans, and millions more around the world. We frequently find vitamin D deficiency in patients who present with POTS Methods: 180 patients were selected randomly from our clinic with POTS. Patients Vitamin D levels charts were reviewed from electronic medical records, 25-OH vitamin D (Vitamin D3 ) status was defined as Normal (>30 ng/mL), Insufficient (20.0-29.9 ng/mL), and deficient (<20 ng/mL). Results: Out of 180 patients, 170 patients are female (94%, n=170, age 31.88±10.36), 10 patients are male (6% ,age 25.83±6.19). 79 patients had vitamin D3 level >30 ng/ml, 10 patients had vitamin D3 level range >20.0 to 29.9 ng/mL, 91 patients had vitamin D3 level < 20ng/mL. Conclusion: Our research results demonstrated that Postural Orthostatic Tachycardia Syndrome (POTS) patients have a higher rate of vitamin D3 deficiency (51% have Vitamin D3 less than 20 ng/mL). Vitamin D3 levels are low in more than half of POTS patients (56% had less than 30 ng/mL )

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