Publications by authors named "Samson S"

With aging, the risk of fractures and compromised healing increases. Angiogenesis plays a significant role in bone healing and is impaired with aging. We have previously shown the impact of megakaryocytes (MKs) in regulating bone healing.

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  • The study focuses on the significance of influenza vaccination in patients with acute myocardial infarction (AMI) and evaluates methods to enhance vaccine uptake among this high-risk group.
  • The research consists of three nationwide randomized clinical trials conducted in Denmark that tested the effectiveness of electronically delivered behavioral nudges against usual care in increasing vaccination rates among AMI patients.
  • The primary outcome measured was the rate of influenza vaccinations received, with findings suggesting that these behavioral nudges could potentially improve vaccination uptake in the targeted population.
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  • - The study investigates the effectiveness of a minimalistic sellar repair technique using an epidural interlay graft to prevent cerebrospinal fluid (CSF) leaks after endoscopic transsphenoidal pituitary surgery.
  • - Out of 334 cases reviewed, intraoperative CSF leaks occurred in 34.7%, but only one postoperative leak was noted (0.3%), highlighting the technique's success and leading to a reduction in more complex repair strategies over time.
  • - The study reports a 65% remission rate for functional macroadenomas, with the interlay graft being a reliable and effective solution, resulting in no postoperative CSF leaks in over 300 surgeries at the institution.
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Pre-cancerous lung lesions are commonly initiated by activating mutations in the RAS pathway, but do not transition to lung adenocarcinomas (LUAD) without additional oncogenic signals. Here, we show that expression of the extracellular matrix protein Tenascin-C (TNC) is increased in and promotes the earliest stages of LUAD development in oncogenic KRAS-driven lung cancer mouse models and in human LUAD. TNC is initially expressed by fibroblasts and its expression extends to tumor cells as the tumor becomes invasive.

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  • - The study aimed to examine how the timing of influenza vaccinations (morning vs. later in the day) affects the immune response and overall health outcomes, particularly in a large trial comparing high-dose and standard-dose influenza vaccines.
  • - Researchers analyzed data from 12,477 participants and found that earlier vaccinations were linked to fewer hospitalizations for respiratory issues, regardless of the vaccine dosage, with statistically significant results.
  • - Although both high-dose and standard-dose vaccines showed similar effectiveness regardless of vaccination timing, the findings suggest that getting vaccinated earlier in the day could still be beneficial, warranting further investigation.
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Introduction: Self-care is a critical component of Reproductive, Maternal, and Neonatal Health (RMNH), offering women the knowledge, skills, and autonomy needed for well-being throughout the reproductive cycle. This paper explores the significance of self-care in conflict-affected regions, where access to formal healthcare is limited. Such areas place pregnant women at higher risk due to increased incidents of adverse events during pregnancy and childbirth.

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Influenza vaccination reduces the risk of adverse outcomes in patients with cardiovascular disease (CVD). We sought to evaluate whether the presence of CVD modified the relative effectiveness of high-dose (QIV-HD) vs. standard-dose (QIV-SD) quadrivalent influenza vaccine in this prespecified analysis of the DANFLU-1 trial.

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Introduction: Advances in endoscopic endonasal transsphenoidal surgery have led to improved postoperative outcomes after pituitary adenoma resection, including reduced length of stay, complications and readmission rates, without compromising safety and satisfaction.

Methods: Our team implemented a perioperative protocol in January 2021 for patients undergoing endoscopic, transsphenoidal pituitary surgery. This study compares preoperative characteristics and postoperative outcomes in 279 patients between 2016 and 2022 (128 preprotocol and 151 postprotocol).

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Background: Mesial temporal lobe epilepsy associated with hippocampal sclerosis (MTLE/HS) is the most common cause of drug-resistant focal seizures and surgical resection is the primary treatment option, with seizure-free rates ranging from 60 to 80%. However, data on postsurgical seizure outcomes in patients ≥ 50 years of age are limited. This study aimed to assess the efficacy and safety of surgery in this age group compared to younger patients.

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  • In medial temporal lobe epilepsy (MTLE), surgery can improve symptoms but may lead to memory decline, making it crucial to predict post-operative outcomes using fMRI tasks.
  • A study of 46 MTLE patients assessed the effectiveness of fMRI language tasks in predicting memory outcomes after surgery; results showed memory fMRI had higher sensitivity in detecting hippocampal activity.
  • Language fMRI, while less sensitive, provided better accuracy in predicting memory performance when hippocampal activation occurred, suggesting a need for combining both tasks to improve post-operative outcome predictions.
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Background: Understanding the nature and extent of sensorimotor decline in aging individuals and those with neurocognitive disorders (NCD), such as Alzheimer's disease, is essential for designing effective music-based interventions. Our understanding of rhythmic functions remains incomplete, particularly in how aging and NCD affect sensorimotor synchronization and adaptation to tempo changes.

Objective: This study aimed to investigate how aging and NCD severity impact tapping to metronomes and music, with and without tempo changes.

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Noroviruses constitute a significant aetiology of sporadic and epidemic gastroenteritis in human hosts worldwide, especially among young children, the elderly, and immunocompromised patients. The low infectious dose of the virus, protracted shedding in faeces, and the ability to persist in the environment promote viral transmission in different socioeconomic settings. Considering the substantial disease burden across healthcare and community settings and the difficulty in controlling the disease, we review aspects related to current knowledge about norovirus biology, mechanisms driving the evolutionary trends, epidemiology and molecular diversity, pathogenic mechanism, and immunity to viral infection.

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Introduction: Acromegaly is a rare endocrine disorder usually caused by a benign growth hormone‒secreting pituitary adenoma. Surgical adenoma resection is typically the first line of treatment, and medical therapy is used for patients with persistent disease following surgery, for adenoma recurrence, or for patients ineligible for, or declining, surgery. Approved somatostatin receptor ligands (SRLs) have been limited to injectable options, until recently.

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  • Gastroenteritis viruses, especially rotavirus, are the main cause of diarrhea in children under five in Africa, with a study analyzing 33 research papers from 2003 to 2023.
  • The study found rotavirus to have a prevalence of 31%, followed by norovirus and other viruses like adenovirus and sapovirus, with G1P[8] being the most common rotavirus genotype.
  • It emphasizes the need for improved vaccination strategies against rotavirus and ongoing surveillance to manage and control viral diarrhea cases in children effectively.
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  • - The study aimed to evaluate the effectiveness of high-dose quadrivalent influenza vaccine (QIV-HD) compared to standard-dose (QIV-SD) based on diabetes status, specifically looking at outcomes like glycated hemoglobin change (∆HbA1c), incident diabetes, and hospitalization rates.
  • - Conducted as a randomized trial among adults aged 65-79, results showed QIV-HD significantly reduced all-cause hospitalizations and was linked to lower risk of hospitalization and death related to pneumonia/influenza among those with diabetes, but did not significantly impact change in HbA1c or incident diabetes risk.
  • - Overall, QIV-HD demonstrated increased relative vaccine effectiveness against various health complications when compared to QIV-S
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Introduction: Pasireotide, a somatostatin receptor ligand, is approved for treating acromegaly and Cushing's disease (CD). Hyperglycemia during treatment can occur because of the drug's mechanism of action, although treatment discontinuation is rarely required. The prospective, randomized, Phase IV SOM230B2219 (NCT02060383) trial was designed to assess optimal management of pasireotide-associated hyperglycemia.

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Understanding the evolution of Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV-2) and its relationship to other coronaviruses in the wild is crucial for preventing future virus outbreaks. While the origin of the SARS-CoV-2 pandemic remains uncertain, mounting evidence suggests the direct involvement of the bat and pangolin coronaviruses in the evolution of the SARS-CoV-2 genome. To unravel the early days of a probable zoonotic spillover event, we analyzed genomic data from various coronavirus strains from both human and wild hosts.

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Background: We assessed the relative vaccine effectiveness (rVE) of high-dose quadrivalent influenza vaccine (QIV-HD) versus standard-dose quadrivalent influenza vaccine (QIV-SD) in preventing respiratory or cardiovascular hospitalizations in older adults.

Methods: FinFluHD was a phase 3b/4 modified double-blind, randomized pragmatic trial. Enrolment of 121,000 adults ≥65 years was planned over three influenza seasons (October to December 2019-2021).

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Background: In the NUDGE-FLU (Nationwide Utilization of Danish Government Electronic letter system for increasing inFLUenza vaccine uptake) trial, electronic letters incorporating cardiovascular (CV) gain-framing and repeated messaging increased influenza vaccination by approximately 1 percentage point.

Objective: To evaluate the effects of the successful nudging interventions on downstream clinical outcomes.

Design: Prespecified exploratory analysis of a nationwide randomized implementation trial.

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BACKGROUND: The relative vaccine effectiveness (rVE) of high-dose quadrivalent influenza vaccines (QIV-HD) versus standard-dose quadrivalent influenza vaccines (QIV-SD) against hospitalizations and mortality in the general older population has not been evaluated in an individually randomized trial. Because of the large sample size required, such a trial will need to incorporate innovative, pragmatic elements. METHODS: We conducted a pragmatic, open-label, active-controlled, randomized feasibility trial in Danish citizens aged 65 to 79 years during the 2021–2022 influenza season.

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Invasive prolactinomas often require multimodal management including medical and surgical interventions. Here, we present the case of a 34-year-old man with a history of progressive visual disturbances. MRI unveiled a sella lesion with suprasellar and retrosellar extensions.

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Objectives: To evaluate the relative effectiveness of high-dose quadrivalent influenza vaccine (QIV-HD) versus standard-dose quadrivalent influenza vaccine (QIV-SD) against recurrent hospitalizations and its potential variation in relation to influenza circulation.

Methods: We did a post-hoc analysis of a pragmatic, open-label, randomized trial of QIV-HD versus QIV-SD performed during the 2021-2022 influenza season among adults aged 65-79 years. Participants were enrolled in October 2021-November, 2021 and followed for outcomes from 14 days postvaccination until 31 May, 2022.

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