LAM KID

[About vitamin D - let’s combine!]

HONTVÁRI Lívia

DECEMBER 20, 2013

LAM KID - 2013;3(04)

[Vitamin D deficiency is a worldwide health problem. On the basis of the recommendations of the latest vitamin D consensus conference, we would like to draw attention to the significance of prevention as well as the recognition and treatment of vitamin D deficiency. We mention that some antiporotics designated “prefix” or “combi” are available that may ensure adequate calcium and vitamin D intake, thus improving patient’s adherence.]

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Further articles in this publication

LAM KID

[Our predecessors were right - Closing remarks on the solubility of urate crystals in microscopic specimens]

BÉLY Miklós, KRUTSAY Miklós

[The authors studied the solubility of urate crystals in alcohol, in an 8% aqueous solution of formaldehyde and in acetone, respectively. The urate crystals were least soluble in alcohol. In comparison, the amount of urate crystals decreased in the aqueous solution of formaldehyde, which confirmed the suggestion of our predecessors that tissues suspected to contain urate crystals should be fixed in alcohol. Urate crystals dissolved in greatest amounts in acetone. Acetone is widely used by histological laboratories for dehydration of tissue blocks before embedding them in paraffin, which, in case of fixation in aqueous formaldehyde, contributes to the dissolution of urate crystals. In our earlier studies, we found that dissolution of urate crystals from haematoxylineosin stained sections is caused by the staining of nuclei in haematoxylin, therefore urate crystals are preferably demonstrated in unstained tissue sections.]

LAM KID

[MicroRNAs as a new family of hormones]

BOJCSUK Dóra, SIPOS Lilla, BÁLINT Bálint László

[MicroRNA molecules regulate the translation of mRNAs to proteins. In a study published by Maria A. Cortez and her colleagues in Nature in 2011, the authors suggest that miRNAs, known as biomarkers and translation regulators, could be considered as nucleic acid hormones. In this paper we introduce the characteristics of microRNAs that support their function as hormones.]

LAM KID

[The effect of three or six years of denosumab exposure in women with postmenopausal osteoporosis: Results From the FREEDOM Extension]

BALLA Bernadett

LAM KID

[About handicraft]

DÁNIEL Zsolt

LAM KID

[Once again on adherence - Is it just fashionable or indeed a timely issue?]

VALKUSZ Zsuzsanna

[Nonadherence to pharmacological treat-ment in osteoporosis is a well-recognised problem not only in Hungary but all over the world. As in other chronic diseases, adherence to osteoporosis treatment is poor, which results in serious problems affecting patients as well as health care resources. Low adherence rates consistent-ly result in increased rates of fractures. Some approaches aimed to improve com-plience and persistence, such as extension of dosing intervals, might improve patients’ adherence to therapy. International clinical studies have demonstrated that the number of fractures cannot be reduced without suf-ficient adherence. Improving patient edu-cation, enhancing interactions between health care providers and patients, taking into account patients’ preferences and involving them in treatment decisions may all improve adherence.]

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Clinical Neuroscience

Correlation of vitamin D levels with electrophysiological findings and pain in the patients with Carpal Tunnel Syndrome

DEMIRYÜREK Enes Bekir, SENTÜRK Asli

Objective - This study aimed to assess the correlation between vitamin D deficiency and electrophysiological findings and pain level in patients with symptoms of carpal tunnel syndrome (CTS). Patients and method - A total of 131 patients with symptoms of CTS, 70 with vitamin D deficiency and 61 without vitamin D deficiency, were included in the study. Using demographic data and findings from electrophysiological examinations, the patients were divided into two groups based on their vitamin D level (Group 1: <20 ng/ml; Group 2: ≥20 ng/ml). The Boston Carpal Tunnel Syndrome Questionnaire was used to assess their CTS- related pain level. Results - Although the rate of CTS in the patients with a low vitamin D level was found to be high, no statistically significant correlation was observed between low vitamin D level and the frequency and severity of CTS. Additionally, the pain and functional loss ratio induced by CTS was found to be higher in the group with a lower vitamin D level than in the group with normal levels. Conclusion - Low vitamin D levels may increase the severity of CTS symptoms. Treatment of vitamin D deficiency in patients with CTS can play a role in reducing pain and disability.

Ca&Bone

[Serum 25(OH)-Vitamin D levels and bone metabolism in patients on maintenance hemodialysis]

ALMÁSI Csilla és munkatársai

[INTRODUCTION - Increasing evidence suggests that 25- hydroxy vitamin D3 (25(OH)D3) may contribute to the bone health of patients with chronic kidney disease.However, there is very little information available on the vitamin D3 status of patients with chronic renal failure. In a cross-sectional study we assessed the association between vitamin D3 status and parathyroid function, bone turnover, bone mass and structure in patients on maintenance haemodialysis. PATIENTS AND METHODS - Sixty-nine patients on maintenance haemodialysis were assessed by bone densitometry (DEXA) and quantitative bone ultrasound. Serum 25-hydroxy vitamin D3 levels and serum markers of bone turnover were simultaneously measured. RESULTS - A high prevalence of potentially significant vitamin D3 deficiency was found in this patient group; 59% of the patients had their 25(OH)D3 vitamin level below 20 nmol/l.There was a significant negative correlation between serum 25(OH)D3 and serum intact parathormone (iPTH) levels (r=-0.231, p<0.05) and this association remained significant after controlling for potential co-variables. Furthermore, a positive correlation was observed between serum 25(OH)D3 concentration and bone mineral density measured at the radius (r=0.424, p<0.01). Finally,we show for the first time that 25(OH)D3 levels are significantly and independently associated with broad band ultrasound attenuation (β =0.237, p<0.05) measured with calcaneal quantitative bone ultrasound in patients with chronic renal failure. CONCLUSION - Vitamin D3 deficiency may contribute to the impaired bone health of patients on maintenance dialysis, therefore, it seems to be warranted regularly monitoring and carefully controlling the D3-vitamin level of these patients.The results also suggest that quantitative bone ultrasound is useful in assessing bone health of patients with chronic renal failure.]

Lege Artis Medicinae

[The importance of vitamin D deficiency in practice]

TAKÁCS István

[The effects of vitamin D in bone health have been known since the 1920s. Recently, it has been proven that its role in the body is much more complex. Activated vitamin D is a steroid hormone that regulates transcription of more than 200 human genes through its receptor that is detectable in almost all types of cells. In contrast to the former conceptions, it can be activated not only in the kidneys; moreover, local 1-α-hydroxylation plays a greater role in its extraskeletal effects. Vitamin D deficiency, currently defined as serum levels of <30 ng/ml, is caused by the lack of ‘effective’ sunlight exposition. Thus, vitamin D deficiency is one of the most frequent deficiencies in the developed world that plays a role not only in the development of skeletal conditions but many other diseases, as well. A low vitamin D level causes a reduced calcium absorption, a higher bone remodelling rate and increased bone loss. It also reduces muscle strength and increases the risk of falling. Normal vitamin D status is required for the effectiveness of drugs for osteoporosis treatment; however vitamin D treatment in itself is not effective in osteoporosis. An increasing number of studies show the benefits of vitamin D supplementation and treatment in extraskeletal conditions. Vitamin D plays an important role in the prevention of several auto-immune diseases, infections, cardiovascular diseases, and cancers. Therefore, all UV-B radiation-deprived adults require an intake of vitamin D to maintain a level of >30 ng/ml. Vitamin D3 treatment is safe. The necessary dose can be reliably approximated by the calculation that an incremental consumption of 100 IU/day raises serum vitamin levels by 1,0 ng/ml. Clinical trials suggest that for the vast majority of individuals, a prolonged intake of 10,000 IU/day does not pose any risk.]

LAM KID

[Comparison of different schemes of vitamin D3 therapy]

SZILI Balázs, BAKOS Bence, KATÓ Karina, KIRSCHNER Gyöngyi, TOBIÁS Bálint, BALLA Bernadett, HORVÁTH Péter

[Vitamin D plays an important role in several pathways in humans. Its relation with several diseases has been previously de­scribed. Vitamin D deficiency affects al­most the full population on temperate zone at the end of the winter. Recommendations on vitamin D supplementation are inconsistent and there are only a few data about the efficacy of cholecalcipherol given not in daily manner. In the present paper, we examine the different administration mo­dalities, and their efficacy in increasing serum vitamin D levels. High doses administered rarely appear to be equally efficient and safe compared to low doses provided frequently.]

Lege Artis Medicinae

[EFFECTS OF VITAMIN D AND THE EFFICACY OF VARIOUS VITAMIN D PRODUCTS]

BORS Katalin

[An increasing number of studies suggests that the effects of vitamin D is not limited to the regulation of calcium homeostasis, but it is also involved in several other physiologic processes. Vitamin D receptors are present on the surface and in the nucleus of most cells. Vitamin D as a steroid hormone has genomic and non-genomic effects. Vitamin D deficiency is an important problem worldwide, and so is in Hungary. Vitamin D promotes bone formation and mineralization and decreases the rate of bone absorption. Its extraskeletal effects include antitumour, muscle strength increasing, antiinflammatory, blood pressure lowering and insulin secretion increasing activites.]