Publications by authors named "Sanders W"

Lethal COVID-19 outcomes are attributed to classic cytokine storm. We revisit this using RNA sequencing of nasopharyngeal and 40 autopsy samples from patients dying of SARS-CoV-2. Subsets of the 100 top-upregulated genes in nasal swabs are upregulated in the heart, lung, kidney, and liver, but not mediastinal lymph nodes.

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The two-week Home Base Intensive Clinical Program (ICP) provides treatment to veterans and active duty service members suffering from primary diagnoses of posttraumatic stress disorder (PTSD), traumatic brain injury (TBI), anxiety, or depression. First launched in 2015, this paper provides a programmatic update, including new treatment components implemented since inception, and examines outcomes for all participants who entered the program from September 2015 to July 2024 ( = 2561). The Home Base ICP provides a massed care approach through daily individual Prolonged Exposure, Cognitive Processing Therapy, Unified Protocol, or cognitive rehabilitation, along with groups targeting coping skills.

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Article Synopsis
  • Cognitive motor dissociation (CMD) involves patients who can follow commands in brain scans like fMRI, despite showing no behavioral signs of language function, highlighting the importance of accurate diagnosis in severe brain injuries.
  • Recent findings outline a structured approach for assessing CMD at clinical institutions, underlining the need for ethical considerations, standardized protocols, and effective communication of results.
  • The proposed method for CMD assessment aims to be adaptable, allowing for updates and improvements as more evidence becomes available in the field.
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Human cytomegalovirus (HCMV) is a ubiquitous pathogen that infects the majority of the world's population. Lytic HCMV replication in immunocompromised individuals or neonates can lead to severe disease in multiple organ systems and even death. The establishment of lytic replication is driven by the first viral proteins expressed upon infection, the immediate early proteins, which play a key role in creating an intracellular environment conducive to virus replication.

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Human cytomegalovirus (HCMV) is a β-herpesvirus which is ubiquitous in the human population. HCMV has the largest genome of all known human herpesviruses, and thus encodes a large array of proteins that affect pathogenesis in different cell types. Given the large genome and the ability of HCMV to replicate in a range of cells, investigators have begun to identify viral proteins required for cell type-specific replication.

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  • Chikungunya virus (CHIKV) is an emerging mosquito-borne RNA virus that can create defective viral genomes (DVGs), which help inhibit its replication and spread.
  • This study examines how the RNA secondary structures of CHIKV influence the production of DVGs by using advanced techniques like SHAPE-MaP to map these structures.
  • The findings show that alterations in RNA secondary structures can lead to differences in DVG generation, highlighting the role of RNA configuration in the virus's replication process.
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A hominin mandible, KNM-ER 63000, and associated vertebrate remains were recovered in 2011 from Area 40 in East Turkana, Kenya. Tephrostratigraphic and magnetostratigraphic analyses indicate that these fossils date to ∼4.3 Ma.

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Background: Patients with brain injury who are unresponsive to commands may perform cognitive tasks that are detected on functional magnetic resonance imaging (fMRI) and electroencephalography (EEG). This phenomenon, known as cognitive motor dissociation, has not been systematically studied in a large cohort of persons with disorders of consciousness.

Methods: In this prospective cohort study conducted at six international centers, we collected clinical, behavioral, and task-based fMRI and EEG data from a convenience sample of 353 adults with disorders of consciousness.

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Article Synopsis
  • In 2009, Massachusetts General Hospital and the Red Sox Foundation established Home Base, a nonprofit focused on providing free mental health care for veterans, service members, and their families suffering from the invisible wounds of war.
  • The program includes innovative features like a Veteran Outreach Team, dedicated family services, and an intensive outpatient substance use treatment program, reaching over 4,000 patients, including more than 3,000 veterans.
  • Satisfaction surveys revealed that over 92% of participants were pleased with their care, and data indicated significant improvements in issues like alcohol use and mental health symptoms, highlighting the program's effectiveness and the potential benefits of adding new components to traditional treatment models.
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Background: Individuals with a uterus experience menopause, the cessation of menses, on average at age 51 years in the United States. While menopause is a natural occurrence for most, over 85% of women experience multiple interfering symptoms. Menopausal women face health disparities, including a lack of access to high-quality healthcare and greater disparities are experienced by women who are black, indigenous, and people of color.

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We previously reported that deletion of a 44-nucleotide element in the 3' untranslated region (UTR) of the Chikungunya virus (CHIKV) genome enhances the virulence of CHIKV infection in mice. Here, we find that while this 44-nucleotide deletion enhances CHIKV fitness in murine embryonic fibroblasts in a manner independent of the type I interferon response, the same mutation decreases viral fitness in C6/36 mosquito cells. Further, the fitness advantage conferred by the UTR deletion in mammalian cells is maintained in vivo in a mouse model of CHIKV dissemination.

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Among patients with severe traumatic brain injury (TBI), there is high prognostic uncertainty but growing evidence that recovery of independence is possible. Nevertheless, families are often asked to make decisions about withdrawal of life-sustaining treatment (WLST) within days of injury. The range of potential outcomes for patients who died after WLST (WLST+) is unknown, posing a challenge for prognostic modeling and clinical counseling.

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RNA viruses quickly evolve subtle genotypic changes that can have major impacts on viral fitness and host range, with potential consequences for human health. It is therefore important to understand the evolutionary fitness of novel viral variants relative to well-studied genotypes of epidemic viruses. Competition assays are an effective and rigorous system with which to assess the relative fitness of viral genotypes.

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Human cytomegalovirus (HCMV) requires the robust expression of two immediate early proteins, IE1 and IE2, immediately upon infection to suppress the antiviral response and promote viral gene expression. While transcriptional control of IE1 and IE2 has been extensively studied, the role of post-transcriptional regulation of IE1 and IE2 expression is relatively unexplored. We previously found that the shared major immediate early 5' untranslated region (MIE 5' UTR) of the mature IE1 and IE2 transcripts plays a critical role in facilitating the translation of the IE1 and IE2 mRNAs.

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We examined whether females with a history of traumatic brain injury (TBI) and intimate partner violence (IPV) have greater exposure to lifetime trauma relative to females with TBI but no IPV history. Further, we assessed the effects of lifetime trauma on psychological outcomes after TBI. Female participants ( = 70; age M [standard deviation-SD] = 50.

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Patients with Lafora disease have a mutation in EPM2A or EPM2B, resulting in dysregulation of glycogen metabolism throughout the body and aberrant glycogen molecules that aggregate into Lafora bodies. Lafora bodies are particularly damaging in the brain, where the aggregation drives seizures with increasing severity and frequency, coupled with neurodegeneration. Previous work employed mouse genetic models to reduce glycogen synthesis by approximately 50%, and this strategy significantly reduced Lafora body formation and disease phenotypes.

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Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) viral proteins bind to host mitochondrial proteins, likely inhibiting oxidative phosphorylation (OXPHOS) and stimulating glycolysis. We analyzed mitochondrial gene expression in nasopharyngeal and autopsy tissues from patients with coronavirus disease 2019 (COVID-19). In nasopharyngeal samples with declining viral titers, the virus blocked the transcription of a subset of nuclear DNA (nDNA)-encoded mitochondrial OXPHOS genes, induced the expression of microRNA 2392, activated HIF-1α to induce glycolysis, and activated host immune defenses including the integrated stress response.

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Background: Screen media activity (SMA) can negatively affect youth behavioral health. Sleep may mediate this association but has not been previously explored. We examined whether sleep mediated the association between SMA and youth behavioral health among a community sample.

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Among all RNA viruses, coronavirus RNA transcription is the most complex and involves a process termed "discontinuous transcription" that results in the production of a set of 3'-nested, co-terminal genomic and subgenomic RNAs during infection. While the expression of the classic canonical set of subgenomic RNAs depends on the recognition of a 6- to 7-nt transcription regulatory core sequence (TRS), here, we use deep sequence and metagenomics analysis strategies and show that the coronavirus transcriptome is even more vast and more complex than previously appreciated and involves the production of leader-containing transcripts that have canonical and noncanonical leader-body junctions. Moreover, by ribosome protection and proteomics analyses, we show that both positive- and negative-sense transcripts are translationally active.

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Article Synopsis
  • Brain glucose metabolism varies significantly across different brain areas and continues even after death, but methods of tissue preservation can influence the results.
  • Conventional methods like quick brain removal and freezing reduce glycogen and glucose levels and increase lactate, while microwave fixation preserves metabolism better.
  • In a mouse model of type 1 diabetes, researchers found overall reduced glucose metabolism in the brain, linked to decreased GLUT2 and metabolic enzyme expression, highlighting the importance of microwave fixation for accurate metabolic studies.
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Living hominoids are distinguished by upright torsos and versatile locomotion. It is hypothesized that these features evolved for feeding on fruit from terminal branches in forests. To investigate the evolutionary context of hominoid adaptive origins, we analyzed multiple paleoenvironmental proxies in conjunction with hominoid fossils from the Moroto II site in Uganda.

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Inflammatory conditions, including allergic asthma and conditions in which chronic low-grade inflammation is a risk factor, such as stress-related psychiatric disorders, are prevalent and are a significant cause of disability worldwide. Novel approaches for the prevention and treatment of these disorders are needed. One approach is the use of immunoregulatory microorganisms, such as NCTC 11659, which have anti-inflammatory, immunoregulatory, and stress-resilience properties.

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Resting-state functional MRI is being used to develop diagnostic, prognostic and therapeutic biomarkers for critically ill patients with severe brain injuries. In studies of healthy volunteers and non-critically ill patients, prospective cardiorespiratory data are routinely collected to remove non-neuronal fluctuations in the resting-state functional MRI signal during analysis. However, the feasibility and utility of collecting cardiorespiratory data in critically ill patients on a clinical MRI scanner are unknown.

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