scholarly journals Primary hyperparathyroidism and vitamin D deficiency

2021 ◽  
Vol 93 (10) ◽  
pp. 1221-1226
Author(s):  
Gyuzel E. Runova ◽  
Olga O. Golounina ◽  
Irina V. Glinkina ◽  
Valentin V. Fadeev

Primary hyperparathyroidism (PHPT) is the third most common endocrine disease after diabetes mellitus and thyroid pathology. Recent epidemiological and experimental data have shown that long-term maintenance of low vitamin D levels in the blood can lead to the development of hyperplastic processes in the cells of the parathyroid glands, followed by autonomous production of parathyroid hormone. In PHPT vitamin D insufficiency or deficiency according to various sources occurs with a frequency of 5377% of cases. The literature review indicates more severe disease in patients with concomitant vitamin D deficiency. The expediency of preoperative assessment of vitamin D levels in all patients with PHPT in order to minimize the risk of hypocalcemia after parathyroidectomy is discussed. This article presents the relationship between vitamin D deficiency and PHPT, as well as possible methods for correcting vitamin D deficiency in PHPT. Molecular and cellular mechanisms of the occurrence of pathological processes in the parathyroid glands under conditions of low vitamin D levels are presented.

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 1354.1-1354
Author(s):  
V. Deshani ◽  
M. Khalid ◽  
K. Jadoon

Background:Primary hyperparathyroidism (PHPT) is a common endocrine condition, commonly seen with increasing age. In vast majority, it is diagnosed incidentally and causes no particular symptoms. Symptoms are usually related to acute hypercalcaemia or the complications of chronically elevated serum calcium level. Vitamin D deficiency is common among general population and in patients with PHPT. Studies in secondary hyperparathyroidism (SHPT) have shown that parathyroid hormone (PTH) response is affected by age, with those over 80 showing greater rise in PTH levels. We wanted to see if age has a similar impact on PTH response to vitamin D in those with PHPT.Objectives:To evaluate the impact of age on PTH response to vitamin D insufficiency in those with PHPT.Methods:Patients with primary hyperparathyroidism (PHPT), attending general endocrine clinic of a district general hospital, were divided into two groups based on age; less than 70 (n=73) and 70 and above (n=61).Each group was subdivided into vitamin D insufficient (VDI) and vitamin D sufficient (VDS) subgroups. We compared calcium and parathyroid hormone levels and forearm BMD (presented as T score) in VDI and VDS subgroups in the two age groups, at the time of diagnosis. Data were analyzed using unpaired t-test and presented as mean ± SEM, using Graphpad Prism 9.0.1.Results:There was significant difference in Vitamin D levels in VDI and VDS subgroups, in both age groups (<70; mean vitamin D 27.98 vs. 68.44, p<0.0001; ≥70; mean vitamin D 34.44 vs. 75.74, p<0.0001). The two groups were significantly different in terms of age (mean age 58 vs. 76, p<0.0001). Although there was no difference in calcium and forearm BMD in VDI and VDS, in both age groups, those under 70 showed a greater PTH response to vitamin D insufficiency (mean PTH 19.29 vs. 12.91 respectively, p<0.001).Conclusion:While in SHPT, those with increasing age show greater rise in PTH levels, our data show that in PHPT, younger patients show a greater PTH rise in response to vitamin D insufficiency. Further work is needed to elucidate the underlying mechanisms.References:[1]Wyskida et al., Parathyroid hormone response to different vitamin D levels in population-based old and very-old Polish cohorts, Experimental Gerontology, Volume 127, 2019, 110735, ISSN 0531-5565, https://doi.org/10.1016/j.exger.2019.110735.[2]Malik M Z, Latiwesh O B, Nouh F, et al. (August 15, 2020) Response of Parathyroid Hormone to Vitamin D Deficiency in Otherwise Healthy Individuals. Cureus 12(8): e9764. doi:10.7759/cureus.9764Disclosure of Interests:None declared.


2020 ◽  
pp. 145749692096260
Author(s):  
M. A. Salman ◽  
A. Rabiee ◽  
A. Salman ◽  
A. Youssef ◽  
H. E.-D. Shaaban ◽  
...  

Background: We postulated that the preoperative correction of vitamin D levels can significantly reduce the incidence of hunger bone syndrome among patients undergoing parathyroidectomy for primary hyperparathyroidism. Methods: We performed a prospective, randomized, open-label study on 102 patients with primary hyperparathyroidism and coexisting vitamin D deficiency who were scheduled to undergo parathyroidectomy. Patients were divided into the following two groups: group I which included 52 patients who did not receive preoperative vitamin D supplementation; and group II which included 50 patients who received cholecalciferol 1000–2000 IU daily or 50000 IU weekly until they achieve vitamin D levels >20 ng/mL (group IIa = 25 patients) or vitamin D levels >30 ng/mL (group IIb = 25 patients). Results: The incidence of hunger bone syndrome in group IIb was lower than group I and group IIa (8% versus 16% versus 23%, respectively); however, this difference did not reach the level of statistical significance (p = 0.22). Patients with hunger bone syndrome were significantly younger and had higher serum phosphorus, alkaline phosphatase, magnesium, and bone mineral density at baseline than patients without hunger bone syndrome. On the other hand, patients with hunger bone syndrome had significantly lower 25-hydroxyvitamin D at baseline than patients without hunger bone syndrome (p = 0.001). The ROC curve showed that the baseline level of serum 25-hydroxyvitamin D was not an independent discriminator of hunger bone syndrome (area under curve = 0.21 (95% CI: 0.06–0.34); p = 0.011). Conclusion: Preoperative course of vitamin D supplements has no preventive role on the postoperative incidence of hunger bone syndrome among patients with primary hyperparathyroidism and coexisting vitamin D deficiency undergoing parathyroidectomy.


Nutrients ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 2405 ◽  
Author(s):  
Bezuglov ◽  
Tikhonova ◽  
Zueva ◽  
Khaitin ◽  
Waśkiewicz ◽  
...  

Vitamin D (25(OH)D) insufficiency and deficiency are highly prevalent in adult soccer players and can exceed 80% even in regions with high insolation; however, the treatment of this condition is often complicated. The aim of the present study was to examine the prevalence of vitamin D insufficiency and deficiency in youth Russian soccer players and the efficacy of its treatment. Participants were 131 young male football players (age 15.6 ± 2.4 years). Low vitamin D levels (below 30 ng/mL) were observed in 42.8% of the analyzed participants. These athletes were split in two groups composed of persons with vitamin D deficiency (serum vitamin D below 21 ng/mL) and insufficiency (serum vitamin D in range of 21–29 ng/mL). A dietary supplement of 5000 IU cholecalciferol per day was administered for two months. After the treatment, an average 92% increase in vitamin D concentration was observed (before treatment—19.7 ± 5.4 ng/mL, after treatment—34.7 ± 8.6 ng/mL, p<0.001) and 74% of the post-treatment values were within the reference range (30–60 ng/mL). Serum concentration of vitamin D increased by 200% ± 98% (p<0.001) during the first month of treatment with vitamin D deficiency and insufficiency being successfully treated in 83% of the football players. In summary, the prevalence of vitamin D insufficiency and deficiency was high in young Russian soccer players. Furthermore, it was indicated that the daily usage of cholecalciferol in a dose 5000 IU was an effective and well-tolerated treatment for vitamin D insufficiency. No linear dependency between the duration of treatment and increase in vitamin 25(OH)D concentration was observed.


2007 ◽  
Vol 9 (2) ◽  
pp. 117-129 ◽  
Author(s):  
Patricia T. Alpert ◽  
Ulfat Shaikh

Individuals are capable of producing vitamin D with proper exposure to sunlight. However, several factors can interfere with the effectiveness of this process. Most sunscreens filter out UVB light, thus inhibiting vitamin D production. Individuals with more darkly pigmented skin have greater difficulty producing vitamin D because melanin acts as an effective natural sunscreen, requiring longer sun exposure to produce an adequate daily allotment of vitamin D. Additionally, solely breastfed infants whose mothers suffered from vitamin D deficiency or insufficiency when pregnant have smaller reserves of the nutrient and are at greater risk of developing nutritional rickets. Vitamin D deficiency leads to rickets, osteomalacia, and osteoporosis. Long-term vitamin D insufficiency can lead to paracrine effects such as type 1 diabetes, cancer, and multiple sclerosis. This article reviews the current literature on vitamin D deficiency and insufficiency and their relation to different disease states. Potential areas for research are discussed.


2021 ◽  
Vol 28 (1) ◽  
pp. E202113
Author(s):  
Sevil Karahan Yılmaz ◽  
Cuma Mertoğlu ◽  
Aylin Ayaz

Aim: This study is aimed to evaluate the relationship between serum vitamin D levels and metabolic syndrome in hemodialysis patients. Materials and Methods: This study was conducted with participation of 80 patients undergoing hemodialysis for more than 6 months three times a week, aged > 18 years. Their height, dry weight, waist circumference were measured. Biochemical parameters such as serum 25-hydroxyvitamin D, lipid profile, and fasting blood glucose were analyzed. Metabolic syndrome was defined using the National Cholesterol Education Program Adult Treatment Panel III criteria. Severe vitamin D deficiency, 25 (OH) vitamin D < 5 ng/ml; mild vitamin D deficiency, 25 (OH) vitamin D 5-15 ng/ml; vitamin D insufficiency, 25 (OH) vitamin D 16-30 ng/ml, and vitamin D sufficiency, 25 (OH) vitamin D > 30 ng/ml were categorized. Statistical analysis of the data was performed with the use of SPSS version 21.0. Results: 48.4% of hemodialysis patients were identified to have metabolic syndrome. According to the serum levels of vitamin D; 35.0% of patients had severe vitamin D deficiency, 37.4% of patients had mild vitamin D deficiency, 18.8% of patients had vitamin D insufficiency and 8.8% of patients had vitamin D sufficiency (> 30 ng/ml). Vitamin D insufficiency was significantly associated with metabolic syndrome and central obesity. Conclusions: Deficiency/insufficiency is observed in serum 25-hydroxyvitamin D levels in hemodialysis patients. Vitamin D insufficiency is associated with metabolic syndrome.


2008 ◽  
Vol 32 (5) ◽  
pp. 829-835 ◽  
Author(s):  
P. V. Pradeep ◽  
Anjali Mishra ◽  
Gaurav Agarwal ◽  
Amit Agarwal ◽  
A. K. Verma ◽  
...  

2015 ◽  
Vol 55 (3) ◽  
pp. 164
Author(s):  
Fathy Pohan ◽  
Aryono Hendarto ◽  
Irawan Mangunatmadja ◽  
Hartono Gunardi

Background Long-term anticonvulsant therapy, especially with enzyme inducers, has been associated with low 25-hydroxyvitamin D [25(OH)D] levels and high prevalence of vitamin D deficiency. However, there have been inconsistent results in studies on the effect of long-term, non-enzyme inducer anticonvulsant use on vitamin D levels.Objective To compare 25(OH)D levels in epileptic children on long-term anticonvulsant therapy and non-epileptic children. We also assessed for factors potentially associated with vitamin D deficiency/insufficiency in epileptic children.Methods This cross-sectional study was conducted at two pediatric neurology outpatient clinics in Jakarta, from March to June 2013. Subjects in the case group were epileptic children, aged 6-11 years who had used valproic acid, carbamazepine, phenobarbital, phenytoin, or oxcarbazepine, as a single or combination therapy, for at least 1 year. Control subjects were non-epileptic, had not consumed anticonvulsants, and were matched for age and gender to the case group. All subjects’ 25(OH)D levels were measured by enzyme immunoassay.Results There were 31 epileptic children and 31 non-epileptic control children. Their mean age was 9.1 (SD 1.8) years. Most subjects in the case group were treated with valproic acid (25/31), administered as a monotherapy (21/31). The mean duration of anticonvulsant consumption was 41.9 (SD 20) months. The mean 25(OH)D level of the epileptic group was 41.1 (SD 16) ng/mL, lower than the control group with a mean difference of 9.7 (95%CI 1.6 to 17.9) ng/mL. No vitamin D deficiency was found in this study. The prevalence of vitamin D insufficiency in the epileptic group was higher than in the control group (12/31 vs. 4/31; P=0.020). No identified risk factors were associated with low 25(OH)D levels in epileptic children.Conclusion Vitamin D levels in epileptic children with long-term anticonvulsant therapy are lower than that of non-epileptic children, but none had vitamin D deficiency.


2011 ◽  
Vol 2011 ◽  
pp. 1-4 ◽  
Author(s):  
Subhashini Yaturu ◽  
Jared Davis

Objective. Vitamin D deficiency is associated with a variety of skeletal and extraskeletal problems. The aim of this study was to evaluate the prevalence of vitamin D deficiency among veterans in sunny Louisiana. Methods. Using the VA computerized patient record system, we searched for all 25 (OH) Vitamin D and 1, 25 (OH) vitamin D levels that were measured between 2007 and 2009. The information collected for each patient included age, body mass index, creatinine, history of diabetes and hypertension, and levels of vitamin D and PTH. We determined the number of individuals who were vitamin D insufficient and deficient. Results. Among 2990 studies evaluated, the mean concentration of 25 (OH) D was  ng/mL, and that of 1, 25 (OH) vitamin D was  ng/mL. Among them, only 695 subjects (23%) had normal values, while 889 (30%) had insufficiency, and 1405 (47%) had deficiency. Subjects with diabetes (1041) had significantly () lower levels (21 and 25 ng/mL) of both 25 (OH) and 1,25 (OH) vitamin D compared to subjects without diabetes (23 and 32 ng/mL). Similarly, subjects with chronic kidney disease (1128) had much lower vitamin D levels than subjects without CKD. Among subjects with diabetes, those with chronic kidney disease (512) had much lower levels of both 25 (OH) and 1,25 (OH) vitamin D than with those with normal creatinine levels. Conclusions. We conclude that vitamin D insufficiency and deficiency is highly prevalent in veterans, more so among subjects with diabetes and/or CKD.


Author(s):  
Faisal Suliman Algaows ◽  
Fatema Abdullah Althkerallah ◽  
Norah Abdulmohsen Alsuwailem ◽  
Amnah Abdulnasser Mawlan Ahmed ◽  
Razan Fahad Alwagdani ◽  
...  

Diabetic neuropathy is a long-term consequence of diabetes that can cause significant morbidity and a decline in quality of life in many individuals. Low vitamin D levels, in addition to causing rickets in infants and chondrosteoma in adults, may have a role in the development of DM and its underlying disorders, according to a growing body of evidence. Vitamin D deficiency has been linked to type 1 or type 2 diabetes, as well as the microvascular and macrovascular problems that come with it. Vitamin D insufficiency has been linked to diabetic peripheral neuropathy (DPN) as an independent risk factor. Vitamin D, both topical and oral, has been shown to considerably improve DPN symptoms and pain.


2020 ◽  
pp. 122-127
Author(s):  
Nofan Pratama Maulana ◽  
Tuti Kurnianingsih ◽  
Sumartini Dewi

Background: Vitamin D is an immune-regulator that influences the neuro-inflammation process in schizophrenia. The study aimed to explore the vitamin D serum level in schizophrenic patients at the outpatient clinic of the Provincial Mental Hospital, West Java, Indonesia. Methods: A quantitative descriptive study was conducted in November-December 2019 using secondary data of all-male schizophrenic patients at the Provincial Mental Hospital. Data collected were demographic characteristics, clinical characteristics, and vitamin D Level. Scoring was then performed using Positive and Negative Syndrome Scale (PANSS) and Montreal Cognitive Assessment (MoCA) to assess the positive and negative symptoms as well as the cognitive symptoms based on the serum vitamin D levels. Result: All male schizophrenic patients had a low serum vitamin D level (mean16.67±5.6ng/ml) with 64.52% of them had vitamin D deficiency (<20 ng/ml). Interestingly, patients with vitamin D deficiency had a negative symptom (mean22.1±5.6ng/ml) whereas those with vitamin D insufficiency (20-29 ng/ml) had a positive symptom (mean 18.55±5.6ng/ml). Furthermore, patients with vitamin D deficiency had a lower impaired cognitive function value (mean 19.7±3.4ng/ml) compared to those with vitamin D insufficiency. Conclusions: A low vitamin D serum level in schizophrenic patients may play a role in the pathogenesis of this disorder. Further studies are needed to confirm this finding.


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