Results of a national multicentric study on compliance to treatment with various disphosphonate formulations in patients with postmenopausal osteoporosis.

AIM: Compliance to pharmacological treatment for osteoporosis is crucial if the risk of fracture is to be reduced. Case series show that treatment with traditional bisphosphonates in the form of tablets has a compliance of between approximately 30% and 70%. The aims of this paper were to assess compliance to treatment with various formulations of bisphonates and to identify those at highest risk of discontinuation. METHODS: In this multicentre retrospective observational study, a population of 387 women diagnosed with postmenopausal osteoporosis under treatment with bisphosphonates (risedronate, ibandronate, alendronate in tablet form, alendronate in a fluid solution per os) was observed for at least a year. Demographic data and information pertaining to the type of drug taken, compliance to treatment, side effects, reasons for discontinuation, the basal examination and follow-up at 18 months and later were recorded. RESULTS AND CONCLUSION: Analysis of patient compliance to a prescribed treatment plan showed a significantly higher persistence (P<0.001) in the group taking alendronate in soluble solution form (83.3%) compared to the group taking any bisphosphonate in tablet form (66.7%). At the same time, patientspresenting comorbidity, receiving more than one therapy, not taking vitamin D, and in surgical menopause, risked discontinuation.

Topical application of nerve growth factor in human diabetic foot ulcers. A study of three cases.

Three diabetic patients with leg or foot ulcers unresponsive to conventional therapies were treated with topical application of Nerve Growth Factor (NGF). The results showed that NGF promotes healing after 5-14 weeks of treatment. This study suggests that the use of topical application of NGF may represent a new useful tool for the management of difficult diabetic ulcers.

Nerve growth factor and autoimmune rheumatic diseases.

Nerve growth factor (NGF) is the first discovered and best known neurotrophic factor and is required for the survival and differentiation of a variety of neuronal cell types in both the peripheral and central nervous system. Recent studies indicate that NGF is synthesized by cells of immune system lineage and that its level increases during inflammatory responses, while cytokines such as interleukin-1 beta and tumor necrosis factor-alpha are potent inducers of NGF secretion. The role played by NGF on cells of the immune system was strengthened by recent evidence demonstrating that cells normally present in inflammatory tissues, such as mast cells and lymphocytes, express NGF receptors and are receptive to the action of NGF. Studies carried out in our and other laboratories showed that NGF is expressed in the synovial fluid of patients with rheumatoid arthritis and other forms of chronic arthritis, as well as in the synovium of pharmacologically-induced arthritis in animal models. Moreover, arthritic transgenic mice which carry and express the human tumor necrosis factor-gene also showed elevated levels of NGF. Significant increases in NGF levels have been found in the sera of patients with systemic lupus erythematosus and in the dermis of patients affected by systemic sclerosis. In this paper the hypothesis that NGF is involved in the pathophysiology of autoimmune rheumatic arthritis is discussed.

Changes in human plasma nerve growth factor level after chronic alcohol consumption and withdrawal.

Numerous studies reported in recent years have shown that withdrawal from chronic consumption of drugs induces high levels of anxiety, both in humans and in animal models. In the present study, we demonstrated that withdrawal from chronic consumption of either ethanol or heroin causes a significant increase in plasma nerve growth factor, suggesting that the resulting anxiety condition triggers the release of this molecule. Although the functional significance of this phenomenon needs to be better defined, it is hypothesized that the increased levels of circulating nerve growth factor might be involved in homeostatic adaptive and/or reparative mechanisms.

Nerve growth factor and mast cell distribution in the skin of patients with systemic sclerosis.

Nerve growth factor (NGF), a well-characterized neurotrophic factor, induces an increase in the number of mast cells (MCs) in the peripheral tissues of developing rats, as well as histamine release in fully differentiated MCs. Since MCs increase in the dermis of patients with early systemic sclerosis (SSc), we examined the distribution of NGF in the skin of patients affected by SSc. Immunohistochemical studies showed that NGF distribution was more intense in the dermis of patients with SSc than in the skin of controls. A possible correlation between MCs and NGF in disease activity is hypothesized.

Nerve growth factor in the synovial fluid of patients with chronic arthritis.

Cytokines regulate nerve growth factor (NGF) synthesis during inflammatory processes. Since cytokines are also involved in the inflammatory processes of autoimmune rheumatic diseases, we examined levels of NGF in patients with rheumatoid or other types of chronic arthritis. NGF was present in the synovial fluid and synovium of patients with chronic arthritis, but was undetectable in control fluids. We conclude that NGF might be involved in the pathogenesis of arthritis.

Studies on carrageenan-induced arthritis in adult rats: presence of nerve growth factor and role of sympathetic innervation.

Recent studies effected by our Institute indicate that various forms of human arthritis express both immunohistochemically and biologically active nerve growth factor (NGF) in the synovium. In the present study, we used a model of carrageenan-induced arthritis to further evaluate the effects of joint inflammation on NGF level. These studies showed that experimentally-induced arthritis in rats caused a significant increase in NGF in the perivascular area of the synovium. We also showed that injection into the synovium of purified NGF did not cause inflammation per se and that the destruction of peripheral sympathetic innervation significantly reduced both the inflammation and the level of NGF following carrageenan injection.

[Diffuse idiopathic skeletal hyperostosis of the cervical spine in a patient with ankylosing spondylitis. Description of a personal case]. / Iperostosi idiopatica diffusa scheletrica del rachide cervicale in paziente con spondilite anchilosante. Descrizione di un caso di nostra osservazione.

Diffuse idiopathic skeletal hyperostosis (DISH) is a well-described disorder of middle-aged people, with a unique spinal pathology characterized by calcification and ossification of the antero-lateral aspect of at least four contiguous vertebral bodies, with the sparing of intervertebral spaces and sacroiliac joints. DISH has rarely been reported associated with ankylosing spondylitis (AS), a chronic inflammatory articular disease most commonly involving the spine and sacroiliac joints. A 63-year-old man with clinical and radiological findings of DISH with associated AS is described here. The authors conclude that these two diseases may, albeit rarely, coexist.

[Prognostic factors in Raynaud's phenomenon: usefulness of antinuclear antibodies and of periungual capillaroscopy]. / Fattori prognostici nel fenomeno di Raynaud: utilità degli anticorpi antinucleo e della capillaroscopia periungueale.

Antinuclear antibodies (ANA) and nailfold capillary microscopy have been evaluated as prognostic markers in patients with apparently idiopathic Raynaud's phenomenon. Results have shown that either ANA and peculiar alterations in nailfold capillaries are important risk factors as regard to the evolution into a connective tissue disease; furthermore, when both these markers are present in a patient with Raynaud's phenomenon, the risk of evolution is even greater. When sensibility and specificity have been compared, ANA appeared to be a more sensible test but nailfold capillary microscopy seemed to be more specific. Our data suggest that ANA and capillary microscopy are important tests in patients with Raynaud's phenomenon; they should be performed in order to identify those patients who are at greater risk of evolving to overt connective tissue disease.