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Risultati di simmetrizzazione per soluzioni di disequazioni variazionali
Angelo Alvino,Silvano Matarasso,Guido Trombetti
Le Matematiche , 1999,
Abstract: We compare the concentration of the solution of elliptic variational inequalities by the concentration of the solution of suitable symmetrized problems.
La Tenca (Mimus thenca) en la provincia de Neuquén: una nueva especie para Argentina
Matarasso,Horacio F.; Seró López,Félix Rodrigo;
El hornero , 2008,
Abstract: we report the first record of the chilean mockingbird (mimus thenca) for argentina. the species was observed in las ovejas and andacollo, in the northwestern portion of neuquén province. there this bird is fairly common and breeds successfully.
The Effect of Recombinant Granulocyte Colony-Stimulating Factor on Oral and Periodontal Manifestations in a Patient with Cyclic Neutropenia: A Case Report
Sergio Matarasso,Vincenzo Daniele,Vincenzo Iorio Siciliano,Michele D. Mignogna,Gianmaria Andreuccetti,Carlo Cafiero
International Journal of Dentistry , 2009, DOI: 10.1155/2009/654239
Abstract: Cyclic Neutropenia (CN) is characterized by recurrent infections, fever, oral ulcerations, and severe periodontitis as result of the reduced host defences. The previous studies have established the effectiveness of recombinant granulocyte colony-stimulating factor (GCSF) to increase the number and the function of neutrophils in the peripheral blood in this disease. In a 20-year-old Caucasian female with a diagnosis of cyclic neutropenia, oral clinical examination revealed multiple painful ulcerations of the oral mucosa, poor oral hygiene conditions, marginal gingivitis, and moderate periodontitis. The patient received a treatment with G-CSF (Pegfilgrastim, 6 mg/month) in order to improve her immunological status. Once a month nonsurgical periodontal treatment was carefully performed when absolute neutrophil count (ANC) was ≥500/L. The treatment with G-CSF resulted in a rapid increase of circulating neutrophils that, despite its short duration, leaded to a reduction in infection related events and the resolution of the multiple oral ulcerations. The disappearance of oral pain allowed an efficacy nonsurgical treatment and a normal tooth brushing that determined a reduction of probing depth (PD≤4 mm) and an improvement of the oral hygiene conditions recorded at 6-month follow-up.
Burn wound angiogenesis is increased by exogenously administered recombinant leptin in rats
Liapakis, Ioannis;Anagnostoulis, Stavros;Karayiannakis, Anastasios;Korkolis, Dimitris;Lambropoulou, Maria;Matarasso, Alan;Simopoulos, Constantinos;
Acta Cirurgica Brasileira , 2008, DOI: 10.1590/S0102-86502008000200002
Abstract: background: leptin is a potent direct angiogenic factor that stimulates endothelial cell migration and activation in vitro and angiogenesis in vivo. in addition, leptin has been discussed to play an important role in angiogenesis, as it promotes the formation of new blood vessels. purpose: the effect of exogenously administered leptin on the healing process of a full tissue burn wound model. methods: sixty-three sprague-dawley male rats were used. full tissue burn wound was created by electrocautery. the width of the pin was 0.3 cm; its length was 2 cm and was used at the "cut" modulation. rats were divided into seven groups of nine animals each. burn wounds were injected with murine recombinant leptin and the rats were sacrificed 3, 7 and 9 days after surgery. every group had obtained three animals for the three different days of sacrifice. three different leptin doses of 250 pg/ml, 500 pg/ml and 1000 pg/ml were used in different animal groups (a, b and c). for every one of the three leptin doses used, another animal group was evaluated by using the combined injection of leptin and antileptin (a1, b1, and c1), in order to study the inhibitory effect to the leptin factor. nine rats were served as controls. these were injected with 0.3 ml water for injection solution and sacrificed at the same time intervals. after sacrifice of the animals, the skin was grossly determined by its appearance, colour and texture. full thickness burn wounds were dissected for histological examination. a qualitative analysis of angiogenesis in the burn wound was conducted following a standard hematoxylin and eosin stain. the wound tissue samples from each experimental group underwent immunohistochemical evaluation of microvessel density by endothelial cell staining with mouse anti-rat cd 34 monoclonal antibody. results: the most impressive growth of new blood vessels appeared seven and nine days after treatment with the highest leptin doses. there were no significant differences in microv
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