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Stability study of topotecan in ophthalmic prefilled syringes for intravitreal delivery.
Eur J Hosp Pharm
January 2025
Pharmacy Department, Lausanne University Hospital, Lausanne, Switzerland
Background: Intravitreal and intracameral administration of melphalan and topotecan (TPT) has shown its efficacy in the treatment of retinoblastoma over the last few years. Due to rapid hydrolysis, melphalan must be administered within the hour following reconstitution. With improved stability at room temperature and reduced ocular toxicity, TPT seems to be a promising candidate for production of prefilled syringes in terms of safety and efficiency of preparation and treatment administration.
View Article and Find Full Text PDFMolecular analysis of HPV16 and HPV18 oncogenes in oral squamous cell carcinoma: Structural, transcriptomic and insights.
Oncol Lett
March 2025
Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu 600077, India.
The present study investigated the involvement of human papillomavirus (HPV)16 and HPV18 in oropharyngeal malignancies in order to understand the oncogenic mechanisms, and to identify biomarkers for early detection and treatment targets. Given the rising incidence of HPV-associated cancer, particularly in India, this holds significance in elucidating the molecular basis of these diseases. Structural validation of HPV16 and 18 oncoproteins E6 and E7 was conducted using computational tools, while gene expression profiles related to oral squamous cell carcinoma (OSCC) were analyzed to assess differential expression.
View Article and Find Full Text PDFMosaicism and intronic variants in RB1 gene revealed by next generation sequencing in a cohort of Spanish retinoblastoma patients.
Exp Eye Res
January 2025
Genetic Diagnosis Unit, Institute for Rare Diseases Research (IIER), Institute of Health Carlos III (ISCIII), Madrid, Spain; CIBER of Rare Diseases (CIBERER), U758. Institute of Health Carlos III (ISCIII), Madrid, Spain.
Constitutional variants in the RB1 gene predispose individuals to the development of Retinoblastoma (RB) and the occurrence of second tumors in adulthood. Detection of causal RB1 gene variants is essential to establish the genetic diagnosis and to performing familial studies and counseling. In our cohort of 579 Spanish RB patients, 15% of cases suspected to have a genetic origin remained negative after traditional Sanger sequencing and Multiplex Ligation-dependent Probe Amplification (MLPA) of RB1 gene, likely due to the possibility of mosaicism or non-coding variants.
View Article and Find Full Text PDFPurpose: Stigma contributes to fear and shame, resulting in delays in care-seeking behavior among individuals with cancer. As a social construct, stigma is affected by language, religion, culture, and local norms. This study explored pediatric cancer stigma at the time of diagnosis across diverse settings through the adaptation of two stigma measures.
View Article and Find Full Text PDFRetinoblastoma with and without Extraocular Tumor Extension: A Global Comparative Study of 3435 Patients.
Ophthalmol Sci
October 2024
International Centre for Eye Health, London School of Hygiene & Tropical Medicine, London, United Kingdom.
Purpose: To study the treatment and outcomes of children with retinoblastoma (RB) with extraocular tumor extension (RB-EOE) and compare them with RB without extraocular tumor extension (RB-w/o-EOE).
Design: Multicenter intercontinental collaborative prospective study from 2017 to 2020. RB-EOE cases included those with overt orbital tumor extension in treatment-naive patients.
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