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  • Title: The teriparatide in the treatment of severe senile osteoporosis.
    Author: Manuele S, Sorbello L, Puglisi N, Grasso S, La Malfa L, D'Urbino G, Rizzotto M, Strano S, Maugeri D.
    Journal: Arch Gerontol Geriatr; 2007; 44 Suppl 1():249-58. PubMed ID: 17317460.
    Abstract:
    The osteoporosis is a systemic disease of multicausal etiopathogenesis. A progressive bone loss and qualitative alterations in the macro- and micro-architecture of the remaining bones, resulting in a loss of strength of bones to such an extent that even very modest traumas will cause fractures characterize it. Three forms are defined (i) postmenopausal appearing after the menopause, (ii) senile appearing with advancing age, and (iii) the idiopathic forms. Severe osteoporosis is declared when the patients suffer vertebral or femoral fractures without any trauma during a treatment with anti-reabsorptive medicines of at least 1-year. The treatment of osteoporosis is based on various categories of pharmaca, such as bisphosphonates, selective estrogen receptor modulators (SERMs), diaminobutyric acid (DABA), parathyroid hormone (PTH), estrogens and non-hormonal drugs. The teriparatide, the recombinant human (rh)PTH(1-34), is identical in amino acid sequence until the 34th (N-terminal) amino acid of the endogenous, human PTH. It is produced in E. coli using the recombinant DNA technology. It is a pharmacon having a strong trophic-anabolic action on the bone tissue, assuring both the inhibition of the bone loss, and the formation of new bones of good quality. It acts as a stimulant of the osteoblast functions, and at the same time, increases the absorption of calcium from the intestine, and also the renal reabsorption of calcium, and decreases the excretion of phosphates in the kidney. This study summarizes our own experience with the use of rhPTH(1-34) in the treatment of senile patients with severe osteoporosis. Our sample consisted of 40 elderly women of the mean age of 78+/-5 years, having severe osteoporosis. They displayed a columnar T-score>-3.5 and femoral T-score>-2.5, had been under antireabsorptive treatment since at least 12 months. In particular, 15 patients were treated with Alendronate (70 mg/week), 10 of them with Risedronate (35 mg/week), and 15 of them with Raloxifene (60 mg/day). These patients in our study were treated for 1 year with 20 microg/day of rhPTH (1-34), injected subcutaneously, and supplemented also with a daily dose of 1g of calcium and 800 IU of Vitamin D, per os. At start of this treatment (time t(0)), after 6 months (time t(6)) and after 12 months (time t(12)) patients underwent a bone mineral density (BMD) analysis (Dexa-Lunar-DPX-P) on the lumbar vertebral column, (L1-L4 zone), as well as a femoral BMD. We applied also quality of life (QoL) questionnaire of the European Foundation for Osteoporosis (QUALEFFO), and evaluated also the use of non-steroidal anti-inflammatory drugs (NSAIDs). Our final considerations are that the teriparatide therapy increases significantly the bone mass density, expressed in terms of T-Score, reduces the occurrence of new fractures, improves the QoL, and decreases also the consumption of NSAIDs.
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