Publications by authors named "Sanabria A"

: Alzheimer's disease (AD) dementia and mild cognitive impairment (MCI) are currently underdiagnosed in the community, and early detection of cognitive deficits is crucial for timely intervention. FACEmemory, the first completely self-administered online memory test with voice recognition, has been launched as an accessible tool to detect such deficits. This study aims to investigate the neuropsychological associations between FACEmemory subscores and cognitive composites derived from traditional paper-and-pencil neuropsychological tests and to develop an optimal algorithm using FACEmemory data and demographics to discriminate cognitively healthy (CH) individuals from those with MCI.

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Background: Second-generation tau tracers for positron emission tomography (PET) show high affinity for paired helical filaments tau deposits characteristic of Alzheimer´s disease and low off-target binding. Differences in their chemical structure though may lead to variations in their regional tau uptake and off-target signal. In this work, we aimed to compare the in-vivo uptake of tau tracers [F]PI-2620 and [F]RO948 in the early stages of the AD continuum.

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Background: Optical coherence tomography (OCT) enables high-resolution imaging of ocular structures in health and disease. Choroid thickness (CT) is a key vascular retinal parameter that can be assessed by OCT and might be relevant in the evaluation of the vascular component of cognitive decline. We aimed to investigate CT changes in a large cohort of individuals cognitive unimpaired (CU), with mild cognitive impairment due to Alzheimer's (MCI-AD), mild cognitive impairment due to cerebrovascular disease (MCI-Va), Alzheimer's disease dementia (ADD), and vascular dementia (VaD).

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The incidence of thyroid cancer is increasing globally, but mortality rates have remained steady. Many patients with thyroid cancer have low-risk, nonmetastatic intrathyroidal tumors smaller than 2 cm. Active surveillance has shown benefits in these patients, but the adoption of this approach remains below standard in Latin America.

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Article Synopsis
  • - The study aimed to evaluate how effective surgical loupes are in preventing complications like recurrent laryngeal nerve (RLN) palsy and hypocalcemia after thyroid surgery.
  • - A total of 813 patients from six studies were analyzed, showing that using loupes significantly reduced the incidence of temporary RLN palsy by about 41.8%.
  • - Although trends suggested lower rates of permanent RLN palsy and hypocalcemia with loupes, these results were not statistically significant, indicating potential benefits that need further research.
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Background: The identification of patients with an elevated risk of developing Alzheimer's disease (AD) dementia and eligible for the disease-modifying treatments (DMTs) in the earliest stages is one of the greatest challenges in the clinical practice. Plasma biomarkers has the potential to predict these issues, but further research is still needed to translate them to clinical practice. Here we evaluated the clinical applicability of plasma pTau181 as a predictive marker of AD pathology in a large real-world cohort of a memory clinic.

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Background: Alzheimer's disease (AD) has a high heritable component characteristic of complex diseases, yet many of the genetic risk factors remain unknown. We combined genome-wide association studies (GWAS) on amyloid endophenotypes measured in cerebrospinal fluid (CSF) and positron emission tomography (PET) as surrogates of amyloid pathology, which may be helpful to understand the underlying biology of the disease.

Methods: We performed a meta-analysis of GWAS of CSF Aβ42 and PET measures combining six independent cohorts (n=2,076).

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Conformity in decision making has a relevant impact in surgical environments. This manuscript reveals how group-based opinions can distort the surgeon's individual judgment, even in critical situations. Two key phenomena are analysed: communication cascades and group polarisation, which amplify conformity and lead to extreme and sometimes harmful decisions.

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Purpose: To assess the effectiveness of bilateral superficial cervical plexus block (BSCPB) in treating post-thyroidectomy pain.

Methods: MEDLINE, Embase, Google Scholar, LILACS, and the Cochrane Central Register of Controlled Trials, were extensively searched. The search period extended from 1968 until December 2022.

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Introperative nerve monitoring (IONM) of the recurrent laryngeal nerve (RLN) is a well-established technique to aid in thyroid/parathyroid surgery. However, there is little evidence to support its use in non-thyroid or non-parathyroid surgery. The aim of this paper was to review the current evidence regarding the use of IONM in non-thyroid/non-parathyroid surgery in the head and neck and thorax.

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Introduction: Locally advanced oral cavity carcinoma (LAOCSCC) is primarily treated with surgery followed by radiotherapy with or without chemotherapy.

Methods: A review of literature using PubMED was performed for studies reporting the management of LAOCSCC. Based on the reviewed literature and opinions of experts in the field, recommendations were made.

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Head and neck squamous cell carcinoma (HNSCC) is well known as a serious health problem worldwide, especially in low-income countries or those with limited resources, such as most countries in Latin America. International guidelines cannot always be applied to a population from a large region with specific conditions. This study established a Latin American guideline for care of patients with head and neck cancer and presented evidence of HNSCC management considering availability and oncologic benefit.

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Introduction: Quality of life (QoL) in thyroid cancer patients is comparable to patients with other tumours with worse prognosis. The aim was to evaluate QoL in Colombian patients with thyroid carcinoma and to explore the association of QoL scores with patient features.

Methods: This is a cross-sectional study.

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Chimeric antigen receptor (CAR) designs that incorporate pharmacologic control are desirable; however, designs suitable for clinical translation are needed. We designed a fully human, rapamycin-regulated drug product for targeting CD33+ tumors called dimerizaing agent-regulated immunoreceptor complex (DARIC33). T cell products demonstrated target-specific and rapamycin-dependent cytokine release, transcriptional responses, cytotoxicity, and in vivo antileukemic activity in the presence of as little as 1 nM rapamycin.

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Objective: To assess the construct validity and reliability of the Trabajo en Equipo en Cirugía (TECS) questionnaire.

Method: The questionnaire was administered to 401 undergraduate students who were doing surgery practices at three universities. An exploratory factor analysis was performed on the first 200 observations, and a confirmatory factor analysis on the remaining ones.

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Article Synopsis
  • - Microglial dysfunction is linked to Alzheimer's disease (AD), with a focus on a variant affecting the SIRPβ1 receptor that regulates the clearance of amyloid-β (Aβ).
  • - The study found that a specific insertion in the SIRPβ1 gene alters protein function, increasing the risk of AD and affecting cognitive decline rates in patients with mild cognitive impairment.
  • - Results suggest that this SIRPβ1 variant could influence microglial responses to Aβ and may serve as a potential target for treatment strategies that involve the TREM2-TYROBP pathway.
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Introduction: Optical coherence tomography angiography (OCT-A) is a novel tool that allows the detection of retinal vascular changes. We investigated the association of macular vessel density (VD) in the superficial plexus assessed by OCT-A with measures of cerebrovascular pathology and atrophy quantified by brain magnetic resonance imaging (MRI) in non-demented individuals.

Methods: Clinical, demographical, OCT-A, and brain MRI data from non-demented research participants were included.

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Introduction: Thyroidectomy is a common surgical procedure. Traditional options for pain management, such as analgesics and nonsteroidal anti-inflammatory medications (NSAIDs), are limited by their side effects. Surgical wound infiltration with local anesthetics has the potential to reduce the need for analgesics in a number of surgical procedures.

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Article Synopsis
  • Lymph node metastases from oral cavity cancers are common, but there's debate over the best surgical approach for neck management in these patients, focusing on the necessary dissection extent.
  • Extensive research provides a foundation for evidence-based treatment strategies, highlighting the need for preoperative staging and the importance of neck dissection even when lymph nodes appear clinically negative.
  • Recommendations emphasize proper specimen handling and achieving a lymph node yield of 18 or more, with sentinel lymph node biopsy being an option for certain cases within experienced teams.
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Dermatofibrosarcoma protuberans (DFSP) is a rare, locally aggressive cutaneous sarcoma with a propensity for recurrence. Its management, particularly in the head and neck (H&N) region, presents unique challenges. This study aimed to evaluate the effectiveness of Mohs micrographic surgery (MMS) compared to wide local excision (WLE) in treating H&N DFSP and its impact on recurrence rates and tissue preservation.

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Background: Surgical scars have been related to poor quality of life, and this is important for head and neck scars. There is a paucity of data about the effect of scars on appearance in Latin American patients. The objective of this study was to describe the self-assessment of patient scars using the Patient Scar Assessment Questionnaire (PSAQ).

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Background: The global prevalence of thyroid cancer is on the rise. About one-third of newly diagnosed thyroid cancer cases comprise low-risk papillary thyroid cancer (1.5 cm or more minor).

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The biogeochemical cycling of mercury in aquatic environments is a complex process driven by various factors, such as ambient temperature, seasonal variations, methylating bacteria activity, dissolved oxygen levels, and Hg interaction with dissolved organic matter (DOM). As a consequence, part of the Hg contamination from anthropogenic activity that was buried in sediments is reinserted into water columns mainly in highly toxic organic Hg forms (methylmercury, dimethylmercury, etc.).

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Purpose: The purpose of this study was to determine the significance and directions of the relationships among oral and manual fine motor skills and language abilities among Spanish-English bilingual children. If such relationships exist, this would support a shared biological influence on motor and language development.

Method: Participants included 56 bilingual children, 24 of whom met criteria for developmental language disorder (DLD), recruited based on teacher concern for language and/or reading comprehension abilities.

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