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Featured researches published by Op Almeida.


Oral Diseases | 2013

Immunophenotypic characterization and distribution of dendritic cells in odontogenic cystic lesions

Ftc Matos; Vht Rizo; Ly Almeida; C Tirapelli; Ytc Silva-Sousa; Op Almeida; Je León

OBJECTIVE To analyze the expression and distribution patterns of mature dendritic cells (mDCs) and immature DCs (imDCs) in radicular cysts (RCs), dentigerous cysts (DtCs), and keratocystic odontogenic tumors (KCOTs). MATERIALS AND METHODS Forty-nine odontogenic cystic lesions (OCLs) (RCs, n = 20; DtCs, n = 15; KCOTs, n = 14) were assessed using the following markers: S100, CD1a and CD207 for imDCs; and CD83 for mDCs. RESULTS Almost all cases were S100, CD1a, and CD207 positive, whereas 63% were CD83 positive. RCs presented greater number of immunostained cells, followed by DtCs, and KCOTs. The number of S100+ cells was greater than both CD1a+ and CD207+ cells (P < 0.001), which showed approximately similar amounts, followed by lower number of CD83+ cells (P < 0.001) in each OCL type. Different from S100+ cells, both CD1a+ and CD207+ cells on the epithelium (P < 0.05) and CD83+ cells on the capsule (P < 0.05) were preferentially observed. In RCs, significant correlation was found between the thickness epithelium with S100+ and CD1a+ cells, and between the degree of inflammation with CD83+ cells. CONCLUSIONS Dendritic cell populations in OCLs can be phenotypically heterogeneous, and it could represent distinct lineages and/or functional stages. It is suggested that besides DC-mediated immune cell interactions, DC-mediated tissue differentiation and maintenance in OCLs should also be considered.


International Journal of Oral and Maxillofacial Surgery | 2002

Juvenile intraoral pleomorphic adenoma: report of five cases and review of the literature

Jacks Jorge; Fábio Ramôa Pires; F.A. Alves; D.E.C. Perez; Luiz Paulo Kowalski; Márcio Ajudarte Lopes; Op Almeida


Archives of Otolaryngology-head & Neck Surgery | 2002

Pleomorphic Adenoma of the Submandibular Gland: Clinicopathological and Immunohistochemical Features of 60 Cases in Brazil

Fabio Abreu Alves; Daniel E. C. Perez; Op Almeida; Márcio Ajudarte Lopes; Luiz Paulo Kowalski


Oral Diseases | 2006

Adenomatoid dentinoma or adenomatoid odontogenic hamartoma: what is the better term to denominate this uncommon odontogenic lesion?

Pablo Agustin Vargas; R Carlos‐Bregni; Adalberto Mosqueda-Taylor; Cuairan‐Ruidíaz; M. A. Lopes; Op Almeida


Oral Diseases | 2005

Tongue disease in advanced AIDS

Pr Faria; Pablo Agustin Vargas; P.H.N. Saldiva; György Miklós Böhm; Thais Mauad; Op Almeida


Oral Diseases | 2007

Characterization of inflammatory cells in oral paracoccidioidomycosis

E Kaminagakura; Prf Bonan; Jacks Jorge; Op Almeida; Crispian Scully


Oral Diseases | 2008

Knowledge of and attitudes about blood‐borne viruses and infection control in Brazilian dental practice

Jacks Jorge; R Jorge; Op Almeida; Crispian Scully


International Journal of Oral and Maxillofacial Surgery | 2008

Sebaceous carcinoma of the parotid gland in children: An immunohistochemical and ploidy study

Albina Altemani; Pablo Agustin Vargas; I. Cardinali; S.S. Aguiar; M. A. Lopes; A.B. Soares; Paul M. Speight; Op Almeida


Oral Diseases | 2003

Primary aspergillosis affecting the tongue of a leukemic patient.

Maria Elvira Pizzigatti Correa; A. B. Soares; C.A. De Souza; Maria Letícia Cintra; Jj Jorge; Op Almeida; Pablo Agustin Vargas


Oral Diseases | 2003

Oral metastasis of telangiectatic osteosarcoma.

Fábio Abreu Alves; Márcio Ajudarte Lopes; M. K. Ikeda; L.P. Kowalski; Op Almeida

Collaboration


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Pablo Agustin Vargas

State University of Campinas

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Jacks Jorge

State University of Campinas

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M. A. Lopes

State University of Campinas

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Luiz Paulo Kowalski

National Institute of Standards and Technology

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Daniel E. C. Perez

State University of Campinas

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Crispian Scully

University College London

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A. B. Soares

State University of Campinas

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A.B. Soares

State University of Campinas

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Albina Altemani

State University of Campinas

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