Publications by authors named "Dabeiba Adriana Garcia Robayo"
Article Synopsis
- This study examines how different amounts of hydroxyapatite (OHAp) and gelatin affect the crosslinking time and shear stress experienced by human dermal fibroblasts in alginate-based bioinks, which are important for 3D bioprinting.
- Four bioink formulations were created with a mix of alginate and gelatin and various concentrations of OHAp, showing that higher OHAp levels improved the bioinks' properties like viscosity and elasticity.
- Tests showed that fibroblasts had less than 1.54 Pa of shear stress during printing, and over 70% cell viability was maintained after 24 hours, with 92% viability after a week with the highest OHAp concentration, indicating these bioinks
Corrigendum to "Platelet-rich fibrin (PRF) modified nano-hydroxyapatite/chitosan/gelatin/alginate scaffolds increase adhesion and viability of human dental pulp stem cells (DPSC) and osteoblasts derived from DPSC" [Int. J. Biol. Macromol. 273 (Part 1) (July 2024) 133064].
Int J Biol Macromol
November 2024
Platelet-rich fibrin (PRF) modified nano-hydroxyapatite/chitosan/gelatin/alginate scaffolds increase adhesion and viability of human dental pulp stem cells (DPSC) and osteoblasts derived from DPSC.
Int J Biol Macromol
July 2024
Bone tissue regeneration strategies have incorporated the use of natural polymers, such as hydroxyapatite (nHA), chitosan (CH), gelatin (GEL), or alginate (ALG). Additionally, platelet concentrates, such as platelet-rich fibrin (PRF) have been suggested to improve scaffold biocompatibility. This study aimed to develop scaffolds composed of nHA, GEL, and CH, with or without ALG and lyophilized PRF, to evaluate the scaffold's properties, growth factor release, and dental pulp stem cells (DPSC), and osteoblast (OB) derived from DPSC viability.
View Article and Find Full Text PDFSaliva samples are important for diagnosis, because they are noninvasive and easy to acquire. The objective of this cross-sectional study was to investigate the value saliva samples have in detecting SARS-CoV-2 in comparison to nasal swabs and a new system named CovidCheck. A standard methodology identified the virus in 185 nasopharyngeal swabs and saliva samples revealing a sensitivity, specificity and positive and negative predictive values of 82,100,100 and 94.
View Article and Find Full Text PDFCharacterization of the oral microbiota and the relationship of the oral microbiota with the dental and periodontal status in children and adolescents with nonsyndromic cleft lip and palate. Systematic literature review and meta-analysis.
Clin Oral Investig
April 2024
Objective: To identify the characteristics of the oral microbiota and the relationship of the dental caries and periodontal status in patients aged 0 to 18 years with non-syndromic cleft lip and palate (CLP).
Materials And Methods: A systematic review of the literature was carried out. Five databases were consulted, including publications in English, Spanish and Portuguese.
Objective: To investigate the frequencies and bacterial load of three species of periodontal bacteria in samples from oropharyngeal cancer patients versus healthy individuals.
Study Design: This is a case-control study based on biopsies collected from tumor tissues obtained from patients with oropharyngeal squamous cell carcinoma between 2016 and 2017 and shed oral mucosal epithelial cells that were collected from controls using the Cepimax® brush, carrying out several brushings towards the posterior third edge of the tongue and the cheek. and detection and absolute quantification was determined through q-PCR.
Objectives: To identify human papillomavirus (HPV), Epstein-Barr virus (EBV), and Candida albicans in oral leukoplakia with different degrees of dysplasia.
Materials And Methods: An observational, cross-sectional, descriptive study was performed using 30 formalin-fixed and paraffin-embedded tissues from patients with clinical suspicion of leukoplakia and confirmed diagnosis of oral dysplasia. Histological analyses were performed by two pathologists (interobserver) and dysplasias were classified as mild, moderate, or severe.
Article Synopsis
- Human papilloma virus (HPV) can lead to various cancers, including oral cancers, and there's been a noted increase in oral cancer cases, possibly linked to changes in sexual behavior.
- A study in an indigenous community in Siltepec, Chiapas, Mexico, revealed a 12.1% prevalence of HPV infection in the oral cavity, influenced by factors like gender and sexual practices, but not by tobacco or alcohol use.
- Sequencing identified several HPV genotypes, notably HPV-13, -16, -32, -81, and -83, with HPV-16 showing high-risk variants from different lineages, highlighting significant HPV presence in this community.
Introduction: Human papilloma virus (HPV) and oral bacteria capable of acetaldehyde production from ethanol, such as Streptococcus anginosus, Prevotella melaninogenica, and Fusobacterium naviforme are among oropharyngeal squamous cell carcinoma (OSCC) infectious risk factors.
Objective: Determine associations with HPV and S. anginosus, P.