Digital Commons Network^™

A Precision Functional Atlas Of Personalized Network Topography And Probabilities, Robert J M Hermosillo, Ally Dworetsky, Babatunde Adeyemo, Caterina Gratton, Steven Petersen, Nico U F Dosenbach, Et Al.

2020-Current year OA Pubs

Although the general location of functional neural networks is similar across individuals, there is vast person-to-person topographic variability. To capture this, we implemented precision brain mapping functional magnetic resonance imaging methods to establish an open-source, method-flexible set of precision functional network atlases-the Masonic Institute for the Developing Brain (MIDB) Precision Brain Atlas. This atlas is an evolving resource comprising 53,273 individual-specific network maps, from more than 9,900 individuals, across ages and cohorts, including the Adolescent Brain Cognitive Development study, the Developmental Human Connectome Project and others. We also generated probabilistic network maps across multiple ages and integration zones (using a …

Deconstructing Pathological Tau By Biological Process In Early Stages Of Alzheimer Disease: A Method For Quantifying Tau Spatial Spread In Neuroimaging, Stephanie Doering, Austin Mccullough, Brian A Gordon, Charles D Chen, Nicole Mckay, Diana Hobbs, Sarah Keefe, Shaney Flores, Jalen Scott, Hunter Smith, Stephen Jarman, Kelley Jackson, Russ C Hornbeck, Beau M Ances, Chengjie Xiong, Andrew J Aschenbrenner, Jason Hassenstab, Carlos Cruchaga, Alisha Daniels, Randall J Bateman, John C Morris, Tammie L S Benzinger, Et Al.

2020-Current year OA Pubs

BACKGROUND: Neuroimaging studies often quantify tau burden in standardized brain regions to assess Alzheimer disease (AD) progression. However, this method ignores another key biological process in which tau spreads to additional brain regions. We have developed a metric for calculating the extent tau pathology has spread throughout the brain and evaluate the relationship between this metric and tau burden across early stages of AD.

METHODS: 445 cross-sectional participants (aged ≥ 50) who had MRI, amyloid PET, tau PET, and clinical testing were separated into disease-stage groups based on amyloid positivity and cognitive status (older cognitively normal control, preclinical AD, and …

Accelerating Medicines Partnership® Schizophrenia (Amp® Scz): Rationale And Study Design Of The Largest Global Prospective Cohort Study Of Clinical High Risk For Psychosis, Cassandra M J Wannan, Michael P. Harms, Daneil Mamah, Spero C. Nicholas, Et Al.

2020-Current year OA Pubs

No abstract provided.

Pml::Rara And Gata2 Proteins Interact Via Dna Templates To Induce Aberrant Self-Renewal In Mouse And Human Hematopoietic Cells, Casey D S Katerndahl, Olivia R S Rogers, Ryan B Day, Ziheng Xu, Nichole M Helton, Sai Mukund Ramakrishnan, Christopher A Miller, Timothy J Ley

2020-Current year OA Pubs

The underlying mechanism(s) by which the PML::RARA fusion protein initiates acute promyelocytic leukemia is not yet clear. We defined the genomic binding sites of PML::RARA in primary mouse and human hematopoietic progenitor cells with V5-tagged PML::RARA, using anti-V5-PML::RARA chromatin immunoprecipitation sequencing and CUT&RUN approaches. Most genomic PML::RARA binding sites were found in regions that were already chromatin-accessible (defined by ATAC-seq) in unmanipulated, wild-type promyelocytes, suggesting that these regions are "open" prior to PML::RARA expression. We found that GATA binding motifs, and the direct binding of the chromatin "pioneering factor" GATA2, were significantly enriched near PML::RARA binding sites. Proximity labeling studies …

Disordered Clock Protein Interactions And Charge Blocks Turn An Hourglass Into A Persistent Circadian Oscillator, Meaghan S Jankowski, Daniel Griffith, Divya G Shastry, Jacqueline F Pelham, Garrett M Ginell, Joshua Thomas, Pankaj Karande, Alex S Holehouse, Jennifer M Hurley

2020-Current year OA Pubs

Organismal physiology is widely regulated by the molecular circadian clock, a feedback loop composed of protein complexes whose members are enriched in intrinsically disordered regions. These regions can mediate protein-protein interactions via SLiMs, but the contribution of these disordered regions to clock protein interactions had not been elucidated. To determine the functionality of these disordered regions, we applied a synthetic peptide microarray approach to the disordered clock protein FRQ in Neurospora crassa. We identified residues required for FRQ's interaction with its partner protein FRH, the mutation of which demonstrated FRH is necessary for persistent clock oscillations but not repression of …

Type 2 Cannabinoid Receptor Expression On Microglial Cells Regulates Neuroinflammation During Graft-Versus-Host Disease, Alison Moe, Aditya Rayasam, Garrett Sauber, Ravi K. Shah, Ashley Doherty, Cheng-Yin Yuan, Aniko Szabo, Bob M. Moore Ii, Marco Colonna, Weiguo Cui, Julian Romero, Anthony E. Zamora, Cecilia J Hillard, William R. Drobyski

2020-Current year OA Pubs

Neuroinflammation is a recognized complication of immunotherapeutic approaches such as immune checkpoint inhibitor treatment, chimeric antigen receptor therapy, and graft versus host disease (GVHD) occurring after allogeneic hematopoietic stem cell transplantation. While T cells and inflammatory cytokines play a role in this process, the precise interplay between the adaptive and innate arms of the immune system that propagates inflammation in the central nervous system remains incompletely understood. Using a murine model of GVHD, we demonstrate that type 2 cannabinoid receptor (CB2R) signaling plays a critical role in the pathophysiology of neuroinflammation. In these studies, we identify that CB2R expression on …

Myadm Binds Human Parechovirus 1 And Is Essential For Viral Entry, Wenjie Qiao, Christopher M Richards, Youlim Kim, James R Zengel, Siyuan Ding, Harry B Greenberg, Jan E Carette

2020-Current year OA Pubs

Human parechoviruses (PeV-A) are increasingly being recognized as a cause of infection in neonates and young infants, leading to a spectrum of clinical manifestations ranging from mild gastrointestinal and respiratory illnesses to severe sepsis and meningitis. However, the host factors required for parechovirus entry and infection remain poorly characterized. Here, using genome-wide CRISPR/Cas9 loss-of-function screens, we identify myeloid-associated differentiation marker (MYADM) as a host factor essential for the entry of several human parechovirus genotypes including PeV-A1, PeV-A2 and PeV-A3. Genetic knockout of MYADM confers resistance to PeV-A infection in cell lines and in human gastrointestinal epithelial organoids. Using immunoprecipitation, we …

An Update On Implant-Associated Malignancies And Their Biocompatibility, Grace C Keane Tahmaseb, Alexandra M Keane, Jose A Foppiani, Terence M Myckatyn

2020-Current year OA Pubs

Implanted medical devices are widely used across various medical specialties for numerous applications, ranging from cardiovascular supports to orthopedic prostheses and cosmetic enhancements. However, recent observations have raised concerns about the potential of these implants to induce malignancies in the tissues surrounding them. There have been several case reports documenting the occurrence of cancers adjacent to these devices, prompting a closer examination of their safety. This review delves into the epidemiology, clinical presentations, pathological findings, and hypothesized mechanisms of carcinogenesis related to implanted devices. It also explores how the surgical domain and the intrinsic properties and biocompatibility of the implants …

Large-Scale Annotated Dataset For Cochlear Hair Cell Detection And Classification, Christopher J Buswinka, Jinkyung Kim, Anthony J Ricci, Mark A Rutherford, Et Al.

2020-Current year OA Pubs

Our sense of hearing is mediated by cochlear hair cells, of which there are two types organized in one row of inner hair cells and three rows of outer hair cells. Each cochlea contains 5-15 thousand terminally differentiated hair cells, and their survival is essential for hearing as they do not regenerate after insult. It is often desirable in hearing research to quantify the number of hair cells within cochlear samples, in both pathological conditions, and in response to treatment. Machine learning can be used to automate the quantification process but requires a vast and diverse dataset for effective training. …

Biomolecular Condensates Form Spatially Inhomogeneous Network Fluids, Furqan Dar, Samuel R Cohen, Diana M Mitrea, Aaron H Phillips, Gergely Nagy, Wellington C Leite, Christopher B Stanley, Jeong-Mo Choi, Richard W Kriwacki, Rohit V Pappu

2020-Current year OA Pubs

The functions of biomolecular condensates are thought to be influenced by their material properties, and these will be determined by the internal organization of molecules within condensates. However, structural characterizations of condensates are challenging, and rarely reported. Here, we deploy a combination of small angle neutron scattering, fluorescence recovery after photobleaching, and coarse-grained molecular dynamics simulations to provide structural descriptions of model condensates that are formed by macromolecules from nucleolar granular components (GCs). We show that these minimal facsimiles of GCs form condensates that are network fluids featuring spatial inhomogeneities across different length scales that reflect the contributions of distinct …

Rapidly Improving Ards Differs Clinically And Biologically From Persistent Ards, Patricia L Valda Toro, Andrew Willmore, Nelson E Wu, Kevin L Delucchi, Alejandra Jauregui, Pratik Sinha, Kathleen D Liu, Carolyn M Hendrickson, Aartik Sarma, Lucile P A Neyton, Aleksandra Leligdowicz, Charles R Langelier, Hanjing Zhuo, Chayse Jones, Kirsten N Kangelaris, Antonio D Gomez, Michael A Matthay, Carolyn S Calfee

2020-Current year OA Pubs

BACKGROUND: Rapidly improving acute respiratory distress syndrome (RIARDS) is an increasingly appreciated subgroup of ARDS in which hypoxemia improves within 24 h after initiation of mechanical ventilation. Detailed clinical and biological features of RIARDS have not been clearly defined, and it is unknown whether RIARDS is associated with the hypoinflammatory or hyperinflammatory phenotype of ARDS. The purpose of this study was to define the clinical and biological features of RIARDS and its association with inflammatory subphenotypes.

METHODS: We analyzed data from 215 patients who met Berlin criteria for ARDS (endotracheally intubated) and were enrolled in a prospective observational cohort conducted …

Single-Cell T-Cell Receptor Repertoire Profiling In Dogs, My H Hoang, Zachary L Skidmore, Hans Rindt, Shirley Chu, Bryan Fisk, Jennifer A Foltz, Catrina Fronick, Robert Fulton, Mingyi Zhou, Nathan J Bivens, Carol N Reinero, Todd A Fehniger, Malachi Griffith, Jeffrey N Bryan, Obi L Griffith

2020-Current year OA Pubs

Spontaneous cancers in companion dogs are robust models of human disease. Tracking tumor-specific immune responses in these models requires reagents to perform species-specific single cell T cell receptor sequencing (scTCRseq). scTCRseq and integration with scRNA data have not been demonstrated on companion dogs with cancer. Here, five healthy dogs, two dogs with T cell lymphoma and four dogs with melanoma are selected to demonstrate applicability of scTCRseq in a cancer immunotherapy setting. Single-cell suspensions of PBMCs or lymph node aspirates are profiled using scRNA and dog-specific scTCRseq primers. In total, 77,809 V(D)J-expressing cells are detected, with an average of 3498 …

An Approach To Identify Gene-Environment Interactions And Reveal New Biological Insight In Complex Traits, Xiaofeng Zhu, Yihe Yang, Noah Lorincz-Comi, Gen Li, Amy R Bentley, Paul S De Vries, Michael Brown, Alanna C Morrison, Charles N Rotimi, W James Gauderman, Dabeeru C Rao, Hugues Aschard, Charge Gene-Lifestyle Interactions Working Group

2020-Current year OA Pubs

There is a long-standing debate about the magnitude of the contribution of gene-environment interactions to phenotypic variations of complex traits owing to the low statistical power and few reported interactions to date. To address this issue, the Gene-Lifestyle Interactions Working Group within the Cohorts for Heart and Aging Research in Genetic Epidemiology Consortium has been spearheading efforts to investigate G × E in large and diverse samples through meta-analysis. Here, we present a powerful new approach to screen for interactions across the genome, an approach that shares substantial similarity to the Mendelian randomization framework. We identify and confirm 5 loci …

Bioresorbable, Wireless, Passive Sensors For Continuous Ph Measurements And Early Detection Of Gastric Leakage, Shuo Li, Yameng Xu, Ying Yan, Jorge Zárate Rodriguez, Mitchell A Pet, Chet W Hammill, Matthew R Macewan, Wilson Z Ray, Et Al.

2020-Current year OA Pubs

Continuous monitoring of biomarkers at locations adjacent to targeted internal organs can provide actionable information about postoperative status beyond conventional diagnostic methods. As an example, changes in pH in the intra-abdominal space after gastric surgeries can serve as direct indicators of potentially life-threatening leakage events, in contrast to symptomatic reactions that may delay treatment. Here, we report a bioresorbable, wireless, passive sensor that addresses this clinical need, designed to locally monitor pH for early detection of gastric leakage. A pH-responsive hydrogel serves as a transducer that couples to a mechanically optimized inductor-capacitor circuit for wireless readout. This platform enables real-time …

Sars-Cov-2 Omicron Ba.1 Variant Infection Of Human Colon Epithelial Cells, Avan Antia, David M Alvarado, Qiru Zeng, Luis A Casorla-Perez, Deanna L Davis, Naomi M Sonnek, Matthew A Ciorba, Siyuan Ding

2020-Current year OA Pubs

The Omicron variant of SARS-CoV-2, characterized by multiple subvariants including BA.1, XBB.1.5, EG.5, and JN.1, became the predominant strain in early 2022. Studies indicate that Omicron replicates less efficiently in lung tissue compared to the ancestral strain. However, the infectivity of Omicron in the gastrointestinal tract is not fully defined, despite the fact that 70% of COVID-19 patients experience digestive disease symptoms. Here, using primary human colonoids, we found that, regardless of individual variability, Omicron infects colon cells similarly or less effectively than the ancestral strain or the Delta variant. The variant induced limited type III interferon expression and showed …

Sleep And Circadian Biomarkers Of Postoperative Delirium (Sleep-Pod): Protocol For A Prospective And Observational Cohort Study, Elizabeth Sugg, Elizabeth Gleeson, Sarah N Baker, Peng Li, Chenlu Gao, Ariel Mueller, Hao Deng, Shiqian Shen, Esteban Franco-Garcia, Richa Saxena, Erik S Musiek, Oluwaseun Akeju, Zhongcong Xie, Kun Hu, Lei Gao

2020-Current year OA Pubs

INTRODUCTION: Surgical patients over 70 experience postoperative delirium (POD) complications in up to 50% of procedures. Sleep/circadian disruption has emerged as a potential risk factor for POD in epidemiological studies. This protocol presents a single-site, prospective observational study designed to examine the relationship between sleep/circadian regulation and POD and how this association could be moderated or mediated by Alzheimer's disease (AD) pathology and genetic risk for AD.

METHODS AND ANALYSIS: Study staff members will screen for eligible patients (age ≥70) seeking joint replacement or spinal surgery at Massachusetts General Hospital (MGH). At the inclusion visit, patients will be asked a …

Antiviral Cellular Therapy For Enhancing T-Cell Reconstitution Before Or After Hematopoietic Stem Cell Transplantation (Aces): A Two-Arm, Open Label Phase Ii Interventional Trial Of Pediatric Patients With Risk Factor Assessment, Michael D Keller, Jeffrey J Bednarski, Et Al.

2020-Current year OA Pubs

Viral infections remain a major risk in immunocompromised pediatric patients, and virus-specific T cell (VST) therapy has been successful for treatment of refractory viral infections in prior studies. We performed a phase II multicenter study (NCT03475212) for the treatment of pediatric patients with inborn errors of immunity and/or post allogeneic hematopoietic stem cell transplant with refractory viral infections using partially-HLA matched VSTs targeting cytomegalovirus, Epstein-Barr virus, or adenovirus. Primary endpoints were feasibility, safety, and clinical responses (>1 log reduction in viremia at 28 days). Secondary endpoints were reconstitution of antiviral immunity and persistence of the infused VSTs. Suitable VST …

Cellular Geometry And Epithelial-Mesenchymal Plasticity Intersect With Piezo1 In Breast Cancer Cells, Choon Leng So, Mélanie Robitaille, Francisco Sadras, Michael H Mccullough, Michael J G Milevskiy, Geoffrey J Goodhill, Sarah J Roberts-Thomson, Gregory R Monteith

2020-Current year OA Pubs

Differences in shape can be a distinguishing feature between different cell types, but the shape of a cell can also be dynamic. Changes in cell shape are critical when cancer cells escape from the primary tumor and undergo major morphological changes that allow them to squeeze between endothelial cells, enter the vasculature, and metastasize to other areas of the body. A shift from rounded to spindly cellular geometry is a consequence of epithelial-mesenchymal plasticity, which is also associated with changes in gene expression, increased invasiveness, and therapeutic resistance. However, the consequences and functional impacts of cell shape changes and the …

Topmed Imputed Genomics Enhances Genomic Atlas Of The Human Proteome In Brain, Cerebrospinal Fluid, And Plasma, Heng Yi, Qijun Yang, Charlie Repaci, Cheolmin Matthew Lee, Gyujin Heo, Jigyasha Timsina, Priyanka Gorijala, Chengran Yang, John Budde, Lihua Wang, Carlos Cruchaga, Yun Ju Sung

2020-Current year OA Pubs

Comprehensive expression quantitative trait loci studies have been instrumental for understanding tissue-specific gene regulation and pinpointing functional genes for disease-associated loci in a tissue-specific manner. Compared to gene expressions, proteins more directly affect various biological processes, often dysregulated in disease, and are important drug targets. We previously performed and identified tissue-specific protein quantitative trait loci in brain, cerebrospinal fluid, and plasma. We now enhance this work by analyzing more proteins (1,300 versus 1,079) and an almost twofold increase in high quality imputed genetic variants (8.4 million versus 4.4 million) by using TOPMed reference panel. We identified 38 genomic regions associated …

Host Response During Unresolved Urinary Tract Infection Alters Female Mammary Tissue Homeostasis Through Collagen Deposition And Timp1, Samantha Henry, Xue-Yan He, Et Al.

2020-Current year OA Pubs

Exposure to pathogens throughout a lifetime influences immunity and organ function. Here, we explore how the systemic host-response to bacterial urinary tract infection (UTI) induces tissue-specific alterations to the mammary gland. Utilizing a combination of histological tissue analysis, single cell transcriptomics, and flow cytometry, we identify that mammary tissue from UTI-bearing mice displays collagen deposition, enlarged ductal structures, ductal hyperplasia with atypical epithelial transcriptomes and altered immune composition. Bacterial cells are absent in the mammary tissue and blood of UTI-bearing mice, therefore, alterations to the distal mammary tissue are mediated by the systemic host response to local infection. Furthermore, broad …

Treating Sex And Gender Differences As A Continuous Variable Can Improve Precision Cancer Treatments, Wei Yang, Joshua B Rubin

2020-Current year OA Pubs

BACKGROUND: The significant sex and gender differences that exist in cancer mechanisms, incidence, and survival, have yet to impact clinical practice. One barrier to translation is that cancer phenotypes cannot be segregated into distinct male versus female categories. Instead, within this convenient but contrived dichotomy, male and female cancer phenotypes are highly overlapping and vary between female- and male- skewed extremes. Thus, sex and gender-specific treatments are unrealistic, and our translational goal should be adaptation of treatment to the variable effects of sex and gender on targetable pathways.

METHODS: To overcome this obstacle, we profiled the similarities in 8370 transcriptomes …

"In Our Community, We Normalize Pain": Discussions Around Menstruation And Uterine Fibroids With Black Women And Latinas, Minerva Orellana, Karen N Dsouza, Jane Q Yap, Abhirami Sriganeshan, M Elena Jones, Charis Johnson, Megan Allyse, Sateria Venable, Elizabeth A Stewart, Felicity Enders, Joyce E Balls-Berry

2020-Current year OA Pubs

BACKGROUND: Uterine fibroids are non-cancerous neoplasms that arise from the uterus affecting over 75% of women. However, there is a disparity with Black women having an increased prevalence of nearly 80%. Black women also experience increased symptom burden, including younger age at the time of diagnosis and increased number and volume of fibroids. Less is known about other ethnoracially diverse women such as Latinas and the potential cultural impacts on fibroid burden and treatment.

METHODS: Community engagement studios were conducted to facilitate discussions with stakeholders on their uterine fibroid and menstruation experience. We recruited Black women (n = 6) diagnosed …

Chemotherapy Activates Inflammasomes To Cause Inflammation-Associated Bone Loss, Chun Wang, Khushpreet Kaur, Canxin Xu, Yousef Abu-Amer, Gabriel Mbalaviele

2020-Current year OA Pubs

Chemotherapy is a widely used treatment for a variety of solid and hematological malignancies. Despite its success in improving the survival rate of cancer patients, chemotherapy causes significant toxicity to multiple organs, including the skeleton, but the underlying mechanisms have yet to be elucidated. Using tumor-free mouse models, which are commonly used to assess direct off-target effects of anti-neoplastic therapies, we found that doxorubicin caused massive bone loss in wild-type mice, a phenotype associated with increased number of osteoclasts, leukopenia, elevated serum levels of danger-associated molecular patterns (DAMPs; e.g. cell-free DNA and ATP) and cytokines (e.g. IL-1β and IL-18). Accordingly, …

Multisensory Flicker Modulates Widespread Brain Networks And Reduces Interictal Epileptiform Discharges, Lou T Blanpain, Eric R Cole, Emily Chen, James K Park, Michael Y Walelign, Robert E Gross, Brian T Cabaniss, Jon T Willie, Annabelle C Singer

2020-Current year OA Pubs

Modulating brain oscillations has strong therapeutic potential. Interventions that both non-invasively modulate deep brain structures and are practical for chronic daily home use are desirable for a variety of therapeutic applications. Repetitive audio-visual stimulation, or sensory flicker, is an accessible approach that modulates hippocampus in mice, but its effects in humans are poorly defined. We therefore quantified the neurophysiological effects of flicker with high spatiotemporal resolution in patients with focal epilepsy who underwent intracranial seizure monitoring. In this interventional trial (NCT04188834) with a cross-over design, subjects underwent different frequencies of flicker stimulation in the same recording session with the effect …

Bone Canonical Wnt Signaling Is Downregulated In Type 2 Diabetes And Associates With Higher Advanced Glycation End-Products (Ages) Content And Reduced Bone Strength, Giulia Leanza, Alec T Beeve, Erica L Scheller, Simon Y Tang, Roberto Civitelli, Nicola Napoli, Et Al.

2020-Current year OA Pubs

Type 2 diabetes (T2D) is associated with higher fracture risk, despite normal or high bone mineral density. We reported that bone formation genes (

Vaccine Effectiveness Against Influenza A-Associated Hospitalization, Organ Failure, And Death: United States, 2022-2023, Nathaniel M Lewis, Jennie H Kwon, Et Al.

2020-Current year OA Pubs

BACKGROUND: Influenza circulation during the 2022-2023 season in the United States largely returned to pre-coronavirus disease 2019 (COVID-19)-pandemic patterns and levels. Influenza A(H3N2) viruses were detected most frequently this season, predominately clade 3C.2a1b.2a, a close antigenic match to the vaccine strain.

METHODS: To understand effectiveness of the 2022-2023 influenza vaccine against influenza-associated hospitalization, organ failure, and death, a multicenter sentinel surveillance network in the United States prospectively enrolled adults hospitalized with acute respiratory illness between 1 October 2022, and 28 February 2023. Using the test-negative design, vaccine effectiveness (VE) estimates against influenza-associated hospitalization, organ failures, and death were measured by …

Innovation In Non-Invasive Diagnosis And Disease Monitoring For Meningiomas, Brianna Korte, Dimitrios Mathios

2020-Current year OA Pubs

Meningiomas are tumors of the central nervous system that vary in their presentation, ranging from benign and slow-growing to highly aggressive. The standard method for diagnosing and classifying meningiomas involves invasive surgery and can fail to provide accurate prognostic information. Liquid biopsy methods, which exploit circulating tumor biomarkers such as DNA, extracellular vesicles, micro-RNA, proteins, and more, offer a non-invasive and dynamic approach for tumor classification, prognostication, and evaluating treatment response. Currently, a clinically approved liquid biopsy test for meningiomas does not exist. This review provides a discussion of current research and the challenges of implementing liquid biopsy techniques for …

Constant-Ph Simulations With The Polarizable Atomic Multipole Amoeba Force Field, Andrew C Thiel, Matthew J Speranza, Sanika Jadhav, Lewis L Stevens, Daniel K Unruh, Pengyu Ren, Jay W Ponder, Jana Shen, Michael J Schnieders

2020-Current year OA Pubs

Accurately predicting protein behavior across diverse pH environments remains a significant challenge in biomolecular simulations. Existing constant-pH molecular dynamics (CpHMD) algorithms are limited to fixed-charge force fields, hindering their application to biomolecular systems described by permanent atomic multipoles or induced dipoles. This work overcomes these limitations by introducing the first polarizable CpHMD algorithm in the context of the Atomic Multipole Optimized Energetics for Biomolecular Applications (AMOEBA) force field. Additionally, our implementation in the open-source Force Field X (FFX) software has the unique ability to handle titration state changes for crystalline systems including flexible support for all 230 space groups. The …

Csf Biomarkers Of Immune Activation And Alzheimer's Disease For Predicting Cognitive Impairment Risk In The Elderly, Francis Shue, Rachel Hendrix, Jason Ulrich, Rachel L Henson, William Knight, Chengjie Xiong, Jigyasha Timsina, Yun Ju Sung, Carlos Cruchaga, David M Holtzman, Et Al.

2020-Current year OA Pubs

The immune system substantially influences age-related cognitive decline and Alzheimer's disease (AD) progression, affected by genetic and environmental factors. In a Mayo Clinic Study of Aging cohort, we examined how risk factors like APOE genotype, age, and sex affect inflammatory molecules and AD biomarkers in cerebrospinal fluid (CSF). Among cognitively unimpaired individuals over 65 (

Subcellular Pathways Through Vglut3-Expressing Mouse Amacrine Cells Provide Locally Tuned Object-Motion-Selective Signals In The Retina, Karl Friedrichsen, Jen-Chun Hsiang, Chin-I Lin, Liam Mccoy, Katia Valkova, Daniel Kerschensteiner, Josh L Morgan

2020-Current year OA Pubs

VGluT3-expressing mouse retinal amacrine cells (VG3s) respond to small-object motion and connect to multiple types of bipolar cells (inputs) and retinal ganglion cells (RGCs, outputs). Because these input and output connections are intermixed on the same dendrites, making sense of VG3 circuitry requires comparing the distribution of synapses across their arbors to the subcellular flow of signals. Here, we combine subcellular calcium imaging and electron microscopic connectomic reconstruction to analyze how VG3s integrate and transmit visual information. VG3s receive inputs from all nearby bipolar cell types but exhibit a strong preference for the fast type 3a bipolar cells. By comparing …