Search Results

You are looking at 11 - 20 of 170 items for :

  • "osteoporosis" x
  • All content x
Clear All
Orvosi Hetilap
Authors: Julianna Rozália Sallai, Gábor Héjj, István †Ratkó, Aniella Hunka, Ilona Márkus, Judit Ortutay, Gábor Ormos, Andor Ujfalussy, László Szekeres, Antal Insperger, Tibor Varjú, and Géza Bálint

al.: Prevalence of osteoporosis in older Hungarian females and males. Osteoporos. Int., 1998, 8 , S21. Lányi É. Prevalence of osteoporosis in older Hungarian females and males

Restricted access
Orvosi Hetilap
Authors: Márta Péntek, László Gulácsi, Edit Tóth, Petra Baji, Valentin Brodszky, and Csaba Horváth

cortecosteroid-induced osteoporosis [ Reumatológiai és Fizioterápiás Szakmai Kollégium: NEFMI szakmai protokoll a korral járó és a kortikoszteroidok indukálta osteoporosis diagnosztikájáról és terápiájáról

Open access

Abstract  

Neutron activation analysis provides a useful clinical test to assess bone mass status in vivo. The neutron flux is obtained from Pu/Be sources and49Ca activity is measured by NaI detectors. For diagnostic value, the49Ca measurement is related to the mean value for normal subjects of the same body size. This normalized index, our CaBI, is used extensively to diagnose the bone loss associated with osteoporosis and to asses changes in bone mass with progression of disease and in response to treatments. Our facility operates at maximum capacity (35 tests/wk.). The hospital location and the dependability and ease of operation (provided by neutron sources) have facilitated extensive clinical use.

Restricted access

Nattiv, A., Agostini, R., Drinkwater, B. et al.: The female athlete triad. The inter-relatedness of disordered eating, amenorrhea, and osteoporosis. Clin. Sports Med., 1994, 13 , 405–417. Drinkwater B

Restricted access

.: Osteoporosis care in Hungary. WHO Bull., 1999, 77 , 429. Poór Gy. Osteoporosis care in Hungary WHO Bull. 1999

Restricted access

Abstract  

The accuracy of dual energy X-ray absorptiometry (DEXA) for measurement of bone mass carried out by quantitative digital radiography (Hologic Inc.) was compared to results with neutron activation analysis (NAA) on 106 subjects. The accuracy with DEXA was further investigated by measurements on aluminium samples of known composition. DEXA measured 4 lumbar vertebrae by spine scan. The central third of the skeleton also was measured by whole body scan to obtain data on the same large part of the skeleton as measured by NAA. Results suggested that DEXA spine scans were more reliable than whole body scans. In addition, the measurement of total mineral content (BMC) was more reliable than the normalization of BMC to bone surface area (BMC/Area) or bone mineral density (BDM). Since the proportion of bone below detection would increase with development of osteoporosis, with osteoporosis the BMC would be increasingly underestimated, but to only a small extent, while the BMD would be more significantly overestimated.

Restricted access

–940. 10 Newcomer, A. D., Hodgson, S. F., McGill, D. B., et al.: Lactase deficiency: prevalence in osteoporosis. Ann. Int. Med., 1978, 89 (2), 218–220. 11

Restricted access
Orvosi Hetilap
Authors: Taha El Hadj Othmane, Gábor Speer, Bertalan Fekete, Tamás Szabó, József Egresits, Erzsébet Fodor, István Kiss, János Nemcsik, András Szabó, Zsófia Németh, Miklós Szathmári, and András Tislér

-induced osteoporosis. Endocrinology, 1999, 140 , 4382–4389. Riggs B. L. Stimulation of osteoprotegerin ligand and inhibition of osteoprotegerin production by glucocorticoids in human

Restricted access
Orvosi Hetilap
Authors: János Fehér, Illés Kovács, and Balacco-Gabrieli Corrado

125 661 669 Kanis, J. A., Johnell, O.: Foundation Requirements for DXA for the management of osteoporosis in Europe. Osteoporos. Int

Open access

Abstract  

The osteoporosis is regarded as a widespread disease all over the world. In the prevention therapy of this disease there is a primary role of the daily calcium intake with the proper Ca:P ratio (1:1–1:2). The primary source of Ca for people the dairy products are implied, from which only the processed cheeses have inadequate ratio of Ca:P. In cheeses processed without peptization developed in the Hungarian Dairy Research Institute (HDRI) the Ca:P ratio meets the requirements (1.5:1), moreover these products can be enriched with Ca. In this study we used both processing technologies. The electronmicroscopic photographs demonstrate the differences clearly. The traditionally processed cheese (with peptization) has a 'spongy’ structure well known from literature, while a space-net can be seen resulting from the casein-filamentous hydrocolloid interaction in the structure of heat-treated cheese without peptization. DSC curves are the same in the temperature range 0–40C, showing endotherm melting process in two well-distinguished temperature interval (0–20 and 22–40C). They are different in the temperature interval 40–100C: in the case of processed cheese with peptization the gel-sol transformation gives a higher endotherm peak in a narrow temperature range, while for heat-treated cheese without peptization this temperature range is wider with a lower endotherm peak. Both electronmicroscopic and DSC investigations have proved that contrary to the traditionally processed cheese where the structure is formed by the linked peptized protein, in the heat- processed cheese without peptization the frame-forming element is the huge hydrocolloid molecule interacted with the protein. The enthalpy change is substantially lower at the disintegration of the latter structure.

Restricted access