Ca&Bone

[The risk factors of osteoporosis and osteoporotic fractures in Hungarian women: the results of the NOKK study]

MEZŐ Tibor1, TABÁK Ádám1, BHATTOA Harjit Pál2, LAKATOS Péter1

DECEMBER 28, 2009

Ca&Bone - 2009;12(03)

[INTRODUCTION - It is widely accepted from Western European and the US studies that race and geography significantly affect the risk for osteoporosis. Less is known about similar associations in Eastern European subjects. Our aim was to describe the risk factors for osteoporotic fractures and osteoporosis in a selected female population in a cross-sectional, multi-center study performed under the guidance of the Hungarian Society for osteoporosis and Osteoarthrology. MATERIAL AND METHOD - From 10 randomly selected regional osteoporosis centers, altogether 2602 women >18 years of age, referred with any osteoarthrological reason, participated. During their visit data on risk factors, blood pressure, anthropometry, and bone mineral density were collected. RESULTS - Using multiple regression we found that older age, lower diastolic blood pressure, family history of bone fracture, fall in previous year and lower T-score were independently related to fractures. Independent risk factors for femoral osteoporosis included older age, lower weight, family history of fracture, less physical activity, fall in the previous year and glucocorticoid treatment. DISCUSSION - Our study is the first large-scale epidemiological survey describing risk factors of osteoporosis and fractures in a Hungarian female population. Our data may suggest that lower diastolic blood pressure might be related to osteoporotic fractures.]

AFFILIATIONS

  1. Semmelweis Egyetem, Általános Orvosi Kar, I. sz. Belgyógyászati Klinika, Budapest
  2. Debreceni Egyetem, Orvos- és Egészségtudományi Centrum, Szülészeti és Nőgyógyászati Klinika, Regionális Osteoporosis Centrum, Debrecen

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[Vitamin D in autoimmun disorders: the immunregulatory effect of vitamin D and therapeutic opportunities]

ZÖLD Éva, SZODORAY Péter, GAÁL János, SZEGEDI Andrea, SZEGEDI Gyula, BODOLAY Edit

[There is recent evidence that genetic and environmental factors play an important role in the development of autoimmune diseases. Vitamin D deficiency is one of the environmental factors that may play a role in developing autoimmune diseases. Low vitamin D status has been implicated in the etiology of autoimmune diseases such as multiple sclerosis, systemic lupus erythematosus, rheumatoid arthritis, inzulin dependent diabetes mellitus, and inflammatory bowel disease. Experimentally, vitamin D deficiency results in an increased incidence of autoimmune disease. The authors discuss the accumulating evidence pointing to a link between vitamin D and autoimmunity. The optimal level of vitamin D intake is necessary to normalize the immune functions and it plays an important role in the development of self-tolerance. Targets for vitamin D in the immune system have been identified and the mechanism of vitamin D mediated immunoregulation is beginning to be understood. On the basic of recent knowledge, vitamin D causes a decrease in Th1-driven autoimmune response and repairs the function of regulatory T cells. Increased vitamin D intakes might decrease the incidence and severity of autoimmune diseases.]

Ca&Bone

[Overcome of bisphosphonate resistance with alphacalcidol: results of a one year, open follow-up study]

GAÁL János, BENDER Tamás, VARGA József, HORVÁTH Irén, KISS Judit, SOMOGYI Péter, SURÁNYI Péter

[INTRODUCTION - A considerable part of osteoporotic patients do not respond satisfactorily to adequate treatment with a bisphosphonate plus supplementation with calcium and conventional vitamin D3. This study intended to determine whether the replacement of vitamin D3 with alphacalcidol results in any BMD increase, i.e. is it possible to overcome resistance to bisphosphonates. PATIENTS AND METHOD - In 76 patients unresponsive to the combination of alendronate and conventional vitamin D3, the latter had been replaced with alphacalcidol (0.5 μg/day), and then the patients were followed up for a year. Clinical and laboratory parameters were recorded at baseline and after one year of treatment; and their changes were analysed by statistical methods. RESULTS - After treatment for one year, Wilcoxon test revealed a small but statistically significant (p<0.001) increase in the BMD values of the forearm (+2.2%) and lumbar vertebrae (+1.4%). At the end of the treatment period, the following, significant changes were observed compared to baseline (median values): serum calcium level increased by 0,06 mmol/l; serum phosphorus level decreased by 0.05 mmol/l, serum alkaline phosphatase activity decreased by 13 U/l, and urinary calcium/creatinine ratio in first-voided morning urine increased by 0.1. Additionally, serum PTH level decreased by 10.7 pg/ml (median). Serum levels of osteocalcin decreased by 0.4 ng/ml, along with the urinary D-Pyr /kreatinine ratio by 0.2 nmol/mmol (median). No significant increase of adverse events occurred. DISCUSSION - As suggested by our results, combination therapy with alendronate and alfacalcidol increases bone density and improves the biochemical markers of bone turnover - without any substantial increase in the incidence of adverse effects.]

Ca&Bone

[Hip fractures in Hungary between 2001 and 2008 - Assessment of the beneficial effect of bisphosphonates on the risk of hip fractures on the basis of Hungarian data]

HÉJJ Gábor

[The overall prevalence of osteoporosis in developed countries is estimated to be 9-15%. Mortality in the first year after the fracture is 15-20%, and half of the survivors remain partly or fully dependent on others’ support. Owing to the increasing life expectance and the diseases of civilisation, the incidence of osteoporotic fractures is expected to double in the next thirty years. The network of centers that has been developed since 1995 under the National Osteoporosis Program and the accreditation system of the National Osteoporosis Center provided up-to-date education of the physicians (densitometry assistants) who work within the network. The diagnostic restrictions followed by the reduction of support to 70% since 2006 fall resulted in a dramatic reduction in the number of treated patients.]

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Many systemic problems arise due to the side effects of antiepileptic drugs (AEDs) used in epilepsy patients. Among these adverse effects are low bone mineral density and increased fracture risk due to long-term AED use. Although various studies have supported this association with increased risk in recent years, the length of this process has not been precisely defined and there is no clear consensus on bone density scanning, intervals of screening, and the subject of calcium and vitamin D supplementation. In this study, in accordance with the most current recommendations, our applications and data, including the detection of possible bone mineralization disorders, treatment methods, and recommendations to prevent bone mineralization disorders, were evaluated in epilepsy patients who were followed up at our outpatient clinic. It was aimed to draw attention to the significance of management of bone metabolism carried out with appropriate protocols. Epilepsy patients were followed up at the Antalya Training and Research Hospital Department of Neurology, Epilepsy Outpatient Clinic who were at high risk for osteoporosis (use of valproic acid [VPA] and enzyme-inducing drugs, using any AED for over 5 years, and postmenopausal women) and were evaluated using a screening protocol. According to this protocol, a total of 190 patients suspected of osteoporosis risk were retrospectively evaluated. Four patients were excluded from the study due to secondary osteoporosis. Of the 186 patients who were included in the study, 97 (52.2%) were women and 89 (47.8%) were men. Prevalence of low bone mineral density (BMD) was 42%, in which osteoporosis was detected in 11.8% and osteopenia in 30.6% of the patients. Osteoporosis rate was higher at the young age group (18-45) and this difference was statistically significant (p=0.018). There was no significant difference between male and female sexes according to osteoporosis and osteopenia rates. Patients receiving polytherapy had higher osteoporosis rate and lower BMD compared to patients receiving monotherapy. Comparison of separate drug groups according to osteoporosis rate revealed that osteoporosis rate was highest in patient groups using VPA+ carbamazepine (CBZ) (29.4%) and VPA polytherapy (19.4%). Total of osteopenia and osteoporosis, or low BMD, was highest in VPA polytherapy (VPA+ non-enzyme-inducing AED [NEID]) and CBZ polytherapy (CBZ+NEID) groups, with rates of 58.3% and 55.1%, respectively. In addition, there was no significant difference between drug groups according to bone metabolism markers, vitamin D levels, and osteopenia-osteoporosis rates. Assuming bone health will be affected at an early age in epilepsy patients, providing lifestyle and diet recommendations, avoiding polytherapy including VPA and CBZ when possible, and evaluating bone metabolism at regular intervals are actions that should be applied in routine practice.

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[Health status and costs of ambulatory patients with multiple sclerosis in Hungary]

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