Publications by authors named "Sarina E C Pichardo"

Article Synopsis
  • Odontogenic myxoma is a rare and aggressive benign tumor found in jaw areas, with no known molecular mechanisms or diagnostic markers currently.
  • The study examined DNA methylation and copy number variations in 16 odontogenic myxomas to uncover potential new diagnostic signatures using advanced genomic techniques.
  • Findings revealed a unique DNA methylation profile and recurrent chromosomal gains in the tumors, suggesting these genetic characteristics could aid in diagnosis, but further research is necessary to understand their underlying genetic causes.
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Background: Since giant cell tumors of bone (GCTB) and other giant cell rich tumors of bone (GCRTB) share the histological presence of osteoclastic giant cells and expression of RANK/RANKL, we hypothesized that GCRTB will respond similarly to denosumab as GCTB. The primary objective of this study was to determine the efficacy of denosumab in patients with GCRTB that have recurred or require morbid surgery.

Methods: In this open-label, multicenter, phase II trial, patients with GCRTB were included (June 2018-March 2020).

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Background: Fibrous dysplasia/McCune-Albright syndrome (FD/MAS) may cause pain, impaired ambulation and decreased quality of life (QoL). International guidelines advocate management of FD/MAS in a tertiary multidisciplinary care pathway, but no longitudinal data are available to support this recommendation. This multicenter prospective observational study aimed to evaluate effects of 1 year of treatment in the FD/MAS care pathway in 2 tertiary clinics on QoL and pain, assessed by change in Short Form 36 and Brief Pain Inventory between baseline and follow-up.

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This study aims to evaluate short-term and long-term results of bisphosphonate therapy in patients with diffuse sclerosing osteomyelitis/tendoperiostitis (DSO/TP) of the mandible. Eighteen patients (12 female, 6 male) aged 34.8 ± 22.

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Objective: The aim of this study was to compare the radiographic abnormalities on cone beam computed tomography (CBCT) in patients with medication-related osteonecrosis of the jaws (MRONJ) related to denosumab use versus bisphosphonate use.

Study Design: The study included 34 consecutive patients with MRONJ who had a history of exclusive use of denosumab (n = 17) or bisphosphonates (n = 17) and had undergone CBCT for determination of extent of disease. Demographic data of the patients were collected.

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Diffuse sclerosing osteomyelitis (DSO) of the mandible is a poorly understood chronic disease. It is assumed to be a form of chronic osteomyelitis. Other forms of chronic osteomyelitis are chronic suppurative osteomyelitis (CSO) and osteoradionecrosis (ORN).

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Purpose: The treatment of pathologic fractures in stage III medication-related osteonecrosis of the jaw (MRONJ) remains challenging. The treatment in the literature is controversial, varying from extensive and aggressive surgery with resections and musculocutaneous free flap reconstruction to conservative treatment with only mouth rinses and/or antimicrobial treatment. The purpose of this study was to analyse the results of the treatment protocol in the Leiden University Medical Center in the Netherlands.

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Introduction: Bisphosphonates are used in the treatment of osteoporosis and bone metastases. They inhibit osteoclast function, thereby decreasing bone resorption. A side effect of these drugs is bisphosphonate-related osteonecrosis of the jaw (BRONJ), which can be difficult to treat.

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Objective: Denosumab, a monoclonal antibody, is a relatively new antiresorptive agent that has recently shown a serious adverse effect: denosumab-related osteonecrosis of the jaws (DRONJ). The purpose of this study was to retrospectively observe the efficacy of the combined surgical and antimicrobial treatment of DRONJ.

Study Design: In this case series, all patients with osteonecrosis that occurred after starting treatment with denosumab, were treated with surgery and antimicrobial treatment and followed up.

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Bisphosphonate-related osteonecrosis of the jaw (BRONJ) was first mentioned in the literature in 2003. Since then, several reports have been published referring to this disease. The etiology of BRONJ still remains unclear.

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Objective(s): Bisphosphonates are frequently used worldwide mostly in osteoporosis and skeletal bone metastases. However, a serious side-effect is bisphosphonate related osteonecrosis of the jaws (BRONJ). The mechanism behind BRONJ remains unclear.

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In the treatment of osteoporosis, M. Kahler and bone metastases from prostate and breast cancer bisphosphonates play a major role. Not all patients respond well to bisphosphonate treatment.

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