Search results for " PCNA"
showing 4 items of 4 documents
Immunohistochemical expression of apoptotic factors, cytokeratins, and metalloproteinase-9 in periapical and epithelialized gingival lesions
2012
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Human dental pulp cell apoptosis: immunohistochemical study after applying orthodontic traction.
2012
The aim of this study was to compare human dental pulp stress and programmed cell death after 3 and 6 months of orthodontic treatments by assessing the degree of apoptosis and related proteins. Human dental pulps were collected from twenty young patients orthodontically treated by Straight Wire technique. Samples were fixed, paraffin-embedded and processed for histology and immunohistochemistry using anti-heat shock protein 60 kDa (Hsp60), -caspase 3, -caspase 9, and -PCNA antibodies, as well as TUNEL reactions. Moreover, we performed immunoprecipitation for Hsp60 and caspase 3, and for Hsp60 and caspase 9, from paraffin extracted tissues. Increased levels of both caspases and Hsp60 occurre…
Attività proliferante degli emociti di Ciona intestinalis
2009
La proliferazione è il termine che definisce il processo di crescita delle popolazioni cellulari. Nell’ematopoiesi dei Vertebrati, la cellula staminale trascorre la maggior parte del suo ciclo vitale nello stadio G0 e si divide per produrre il progenitore staminale in grado di proliferare attivamente. In Ciona intestinalis poco si sa circa l’ematopoiesi sebbene, alcuni autori hanno descritto nel faringe zone di proliferazione definite col termine di noduli emopoietici e, per gli emociti cosiddetti linfocito-like, un’attività proliferativa in seguito a stimolazione. In questo lavoro viene riportata l’attività proliferante degli emociti circolanti. Gli emociti sono stati caratterizzati utiliz…
Immunohistochemical expression and distribution of orexin, orphanin and leptin in the major salivary glands of some mammals
2012
Abstract: The aim of the study was to assess the involvement of apoptotic factors, cytokeratins and metalloproteinase- 9 in the histogenesis of both Epithelialized Gingival Lesions (EGL) and Periapical Lesions (PAL). 55 consecutive patients, 30 with PAL and 25 with EGL, were selected for the study after clinical and radiological examinations. The PAL patients had severe periapical lesions and tooth decay with exposure of the pulp chamber. All PAL and EGL biopsies were surgically extracted, fixed in 10% buffered formalin, and processed for routine light microscopy. Ten biopsies of each category were processed for immunohistochemistry (IHC). Serial paraffin sections were stained by IHC with a…