Medicine and Health Sciences Commons^™

Chromosomal And Gonadal Sex Have Differing Effects On Social Motivation In Mice, Sneha M Chaturvedi, Simona Sarafinovska, Din Selmanovic, Katherine B Mccullough, Raylynn G Swift, Susan E Maloney, Joseph D Dougherty

2020-Current year OA Pubs

BACKGROUND: Sex differences in brain development are thought to lead to sex variation in social behavior. Sex differences are fundamentally driven by both gonadal hormones and sex chromosomes, yet little is known about the independent effects of each on social behavior. Further, mouse models of the genetic liability for the neurodevelopmental disorder MYT1L Syndrome have shown sex-specific deficits in social motivation. In this study, we aimed to determine if gonadal hormones or sex chromosomes primarily mediate the sex differences seen in mouse social behavior, both at baseline and in the context of Myt1l haploinsufficiency.

METHODS: Four-core genotypes (FCG) mice, which …

Trem2 Promotes Lung Fibrosis Via Controlling Alveolar Macrophage Survival And Pro-Fibrotic Activity, Huachun Cui, Sami Banerjee, Na Xie, Musaddique Hussain, Ashish Jaiswal, Hongli Liu, Tejaswini Kulkarni, Veena B Antony, Rui-Ming Liu, Marco Colonna, Gang Liu

2020-Current year OA Pubs

Lung macrophages play a pivotal role in pulmonary fibrosis, with monocyte-derived alveolar macrophages driving disease progression. However, the mechanisms regulating their pro-fibrotic behavior and survival remain unclear, and effective therapeutic strategies are lacking. Here we show that triggering receptors expressed on myeloid cells 2 are predominantly expressed on monocyte-derived alveolar macrophages in fibrotic mouse lungs and are significantly elevated in lung macrophages from patients with idiopathic pulmonary fibrosis. Deletion or knockdown of this receptor disrupts intracellular survival signaling, promotes macrophage apoptosis, and attenuates their pro-fibrotic phenotype. We further demonstrate that a lipid mediator and a high-avidity ligand of this receptor, …

Targeting Fatty Acid Synthase Reduces Aortic Atherosclerosis And Inflammation, Rodrigo Meade, Dina Ibrahim, Connor Engel, Larisa Belaygorod, Batool Arif, Fong-Fu Hsu, Sangeeta Adak, Ryan Catlett, Mingzhou Zhou, Ma Xenia G Ilagan, Clay F Semenkovich, Mohamed A Zayed

2020-Current year OA Pubs

Fatty acid synthase (FAS) is predominantly expressed in the liver and adipose tissue. It plays vital roles in de novo synthesis of saturated fatty acids and regulates insulin sensitivity. We previously demonstrated that serum circulating FAS (cFAS) is a clinical biomarker for advanced atherosclerosis, and that it is conjugated to low-density lipoproteins (LDL). However, it remains unknown whether cFAS can directly impact atheroprogression. To investigate this, we evaluate whether cFAS impacts macrophage foam cell formation - an important cellular process leading to atheroprogression. Macrophages exposed to human serum containing high levels of cFAS show increased foam cell formation as compared …

Successful Endovascular Management Of Concomitant Ischemic Stroke, Myocardial Infarction, And Massive Pulmonary Embolism, Ryan W Nolan, Naganathan B Mani, Amir Ata Rahnemai-Azar, Sriya Kosaraju, Arindam Chatterjee, Jasvindar Singh, Pavan Kumar Kavali

2020-Current year OA Pubs

BACKGROUND: Ischemic stroke, myocardial infarction (MI), and pulmonary embolism (PE) are emergent conditions which can be treated with catheter-directed therapies. Concomitant management of these conditions with catheter-directed therapy is not well-documented and lacks strong guidelines.

CASE SUMMARY: A 70-year-old woman presented with stroke symptoms and ST-segment elevation MI. Rapid stroke protocol imaging confirmed ischemic stroke and extensive bilateral PE. To address these conditions rapidly and because of contraindications for systemic thrombolysis, she underwent percutaneous coronary intervention without stenting, stroke thrombectomy, and finally pulmonary thrombectomy.

DISCUSSION: This case provides insight into the management of a patient with 3 emergent pathologies with …

Ipscs And Ipsc-Derived Cells As A Model Of Human Genetic And Epigenetic Variation, Kara Quaid, Xiaoyun Xing, Yi-Hsien Chen, Yong Miao, Amber Neilson, Vijayalingam Selvamani, Aaron Tran, Xiaoxia Cui, Ming Hu, Ting Wang

2020-Current year OA Pubs

Understanding the interaction between genetic and epigenetic variation remains a challenge due to confounding environmental factors. We propose that human induced Pluripotent Stem Cells (iPSCs) are an excellent model to study the relationship between genetic and epigenetic variation while controlling for environmental factors. In this study, we have created a comprehensive resource of high-quality genomic, epigenomic, and transcriptomic data from iPSC lines and three iPSC-derived cell types (neural stem cell (NSC), motor neuron, monocyte) from three healthy donors. We find that epigenetic variation is most strongly associated with genetic variation at the iPSC stage, and that relationship weakens as epigenetic …

Unveiling The Genetic Landscape Of Coronary Artery Disease Through Common And Rare Structural Variants, Kruthika R Iyer, Erica P Young, Nathan O Stitziel, Et Al.

2020-Current year OA Pubs

BACKGROUND: Genome-wide association studies have identified several hundred susceptibility single nucleotide variants for coronary artery disease (CAD). Despite single nucleotide variant-based genome-wide association studies improving our understanding of the genetics of CAD, the contribution of structural variants (SVs) to the risk of CAD remains largely unclear.

METHOD AND RESULTS: We leveraged SVs detected from high-coverage whole genome sequencing data in a diverse group of participants from the National Heart Lung and Blood Institute's Trans-Omics for Precision Medicine program. Single variant tests were performed on 58 706 SVs in a study sample of 11 556 CAD cases and 42 907 controls. …

The Lymph Trial: Comparing Microsurgical With Conservative Treatment For Chronic Breast Cancer-Associated Lymphoedema - Study Protocol Of A Pragmatic Randomised International Multicentre Superiority Trial, Elisabeth A Kappos, Justin M Sacks, Et Al.

2020-Current year OA Pubs

INTRODUCTION: Up to one-fifth of breast cancer survivors will develop chronic breast cancer-related lymphoedema (BCRL). To date, complex physical decongestion therapy (CDT) is the gold standard of treatment. However, it is mainly symptomatic and often ineffective in preventing BCRL progression. Lymphovenous anastomosis (LVA) and vascularised lymph node transfer (VLNT) are microsurgical techniques that aim to restore lymphatic drainage. This international randomised trial aims to evaluate advantages of microsurgical interventions plus CDT versus CDT alone for BCRL treatment.

METHODS AND ANALYSIS: The effectiveness of LVA and/or VLNT in combination with CDT, which may be combined with liposuction, versus CDT alone will …

Impulsivity Facets And Substance Use Involvement: Insights From Genomic Structural Equation Modeling, Laura Vilar-Ribó, Alexander S Hatoum, Andrew D Grotzinger, Travis T Mallard, 23andme Research Team, Sarah Elson, Pierre Fontanillas, Abraham A Palmer, Daniel E Gustavson, Sandra Sanchez-Roige

2020-Current year OA Pubs

BACKGROUND: Impulsivity is a multidimensional trait associated with substance use disorders (SUDs), but the relationship between distinct impulsivity facets and stages of substance use involvement remains unclear.

METHODS: We used genomic structural equation modeling and genome-wide association studies (

RESULTS: We found that the SU and SUD factors were strongly genetically inter-correlated (

CONCLUSIONS: Our findings show that specific impulsivity facets confer risk for distinct stages of substance use involvement, with potential implications for SUDs prevention and treatment.

Small Molecule-Mediated Inhibition Of The Oxidoreductase Ero1a Restrains Aggressive Breast Cancer By Impairing Vegf And Pd-L1 In The Tumor Microenvironment, Ersilia Varone, Jaehyung Cho, Et Al.

2020-Current year OA Pubs

Cancer cells adapt to harsh environmental conditions by inducing the Unfolded Protein Response (UPR), of which ERO1A is a mediator. ERO1A aids protein folding by acting as a protein disulfide oxidase, and under cancer-related hypoxia conditions, it favors the folding of angiogenic VEGFA, leading tumor cells to thrive and spread. The upregulation of ERO1A in cancer cells, oppositely to the dispensability of ERO1A activity in healthy cells, renders ERO1A a perfect target for cancer therapy. Here, we report the upregulation of ERO1A in a cohort of aggressive triple-negative breast cancer (TNBC) patients in which ERO1A levels correlate with a higher …

Association Of Hyponatremia With Outcomes After Geriatric Trauma: A Systematic Review And Meta-Analysis, Ariana Naaseh, Steven Tohmasi, Carrie Stoll, Chongliang Luo, Lauren H Yaeger, Mark H Hoofnagle, Graham A Colditz, Marguerite W Spruce

2020-Current year OA Pubs

BACKGROUND: Trauma is a major cause of mortality in the elderly population. Hyponatremia is the most common electrolyte imbalance in geriatric patients and has been demonstrated to be a risk factor for altered cognition, low bone density, falls, and death. We systematically and critically reviewed the literature to ascertain the association between hyponatremia and geriatric trauma outcomes.

METHODS: We searched seven databases for articles published from inception to October 2023. Studies included reported on geriatric trauma, hyponatremia, and clinical outcomes. Two investigators independently reviewed 6535 abstracts, 235 full-text articles, and critically appraised each study. Study details, patient characteristics, and outcomes …

Clinical Impact Of Endoscopy In Severely Thrombocytopenic Patients With Hematologic Malignancy Experiencing Gastrointestinal Bleeding, Badr Alhumayyd, Ashton Naumann, Amanda Cashen, Chien-Huan Chen

2020-Current year OA Pubs

BACKGROUND: Gastrointestinal bleeding (GIB) is a major cause of hospitalization worldwide. Patients with hematologic malignancies have a higher risk of GIB as a result of thrombocytopenia and platelet dysfunction. There is no consensus on the optimal platelet level that would be safe for endoscopic intervention, although a platelet level of > 50 × 10

AIM: To assess the safety of endoscopic intervention of inpatients with hematological malignancies and severe thrombocytopenia presenting with acute overt GIB.

METHODS: This is a single center retrospective study. The data was collected from the electronic health record from 2018 to 2020. Inpatients with hematologic malignancy who …

Proximity Proteomics Provides A New Resource For Exploring The Function Of Afadin And The Complexity Of Cell-Cell Adherens Junctions, Wangsun Choi, Dennis Goldfarb, Feng Yan, Michael B Major, Alan S Fanning, Mark Peifer

2020-Current year OA Pubs

The network of proteins at the interface between cell-cell adherens junctions and the actomyosin cytoskeleton provides robust yet dynamic connections that facilitate cell shape change and motility. While this was initially thought to be a simple linear connection via classic cadherins and their associated catenins, we now have come to appreciate that many more proteins are involved, providing robustness and mechanosensitivity. Defining the full set of proteins in this network remains a key objective in our field. Proximity proteomics provides a means to define these networks. Mammalian Afadin and its Drosophila homolog Canoe are key parts of this protein network, …

Digit Regeneration Is Expedited In Lg/J Healer Mice Compared To Sm/J Non-Healer Mice, Feini Qu, Kristin L Lenz, Gwendalyn L Krekeler, Xin Duan, Muhammad Farooq Rai, Farshid Guilak

2020-Current year OA Pubs

Limb loss resulting from disease or trauma affects an estimated 185,000 Americans annually, significantly reducing their quality of life. Consequently, successful attempts to regrow missing appendages could substantially improve the prognosis for amputees. In mice, the digit tip spontaneously regenerates resected tissues following distal amputation, whereas this capacity diminishes at more proximal levels after amputation. Moreover, regenerative potential is influenced by genetic variations among inbred mouse strains: LG/J (healer) mice exhibit superior reparative potential compared to SM/J (non-healer) mice. This study investigated the response to various levels of digit amputation in these mice to determine whether this strain-dependent healing response …

Identifying Major Depressive Disorder In Older Adults Through Naturalistic Driving Behaviors And Machine Learning, Chen Chen, David C Brown, Noor Al-Hammadi, Sayeh Bayat, Anne Dickerson, Brenda Vrkljan, Matthew Blake, Yiqi Zhu, Jean-Francois Trani, Eric J Lenze, David B Carr, Ganesh M Babulal

2020-Current year OA Pubs

Depression in older adults is often underdiagnosed and has been linked to adverse outcomes, including motor vehicle crashes. With a growing population of older drivers in the United States, innovations in screening methods are needed to identify older adults at greatest risk of decline. This study used machine learning techniques to analyze real-world naturalistic driving data to identify depression status in older adults and examined whether specific demographics and medications improved model performance. We analyzed two years of GPS data from 157 older adults, including 81 with major depressive disorder, using XGBoost and logistic regression models. The top-performing model achieved …

Patient Partner Engagement In The Publication Process: Challenges And Possible Solutions, Krista E Cooksey, Mark Neuman, Mara Bollini, Bethany Pennington, Hugo De O Campos, Kathleen Oberst, Melissa Wurst, Mary C Politi

2020-Current year OA Pubs

Patient engagement in research is gaining traction as an international standard, and often requirement, of many health research funding agencies. Drivers of this increase include patient interest, increased attention to and recognition of the value of patients' voices in research, and more patients leading or partnering in the conduct research. Patient engagement includes collaborating and providing insights into research question and study design, and may extend to the publication process. When patients contribute to publications, they can bring unique perspectives that may enhance the impact, reach, and utility of the research in real-world contexts. Currently, there is limited systematic guidance …

Aberrant Homeodomain-Dna Cooperative Dimerization Underlies Distinct Developmental Defects In Two Dominant Crx Retinopathy Models, Yiqiao Zheng, Gary D Stormo, Shiming Chen

2020-Current year OA Pubs

Paired-class homeodomain (HD) transcription factors (TFs) play essential roles in vertebrate development, and their mutations are linked to human diseases. One unique feature of a paired-class HD is cooperative dimerization on specific palindrome DNA sequences. Yet, the functional significance of HD cooperative dimerization in animal development and its dysregulation in diseases remains elusive. Using the retinal TF cone-rod homeobox (CRX) as a model, we have studied how blindness-causing mutations in the paired HD, p.E80A and p.K88N, alter CRX's cooperative dimerization, leading to gene misexpression and photoreceptor developmental deficits in dominant manners. CRX

Phase 3 Trial Of Cabozantinib To Treat Advanced Neuroendocrine Tumors, Jennifer A Chan, Nikolaos A Trikalinos, Et Al.

2020-Current year OA Pubs

BACKGROUND: Treatment options for patients with advanced neuroendocrine tumors are limited. The efficacy of cabozantinib in the treatment of previously treated, progressive extrapancreatic or pancreatic neuroendocrine tumors is unclear.

METHODS: We enrolled two independent cohorts of patients - those with extrapancreatic neuroendocrine tumors and those with pancreatic neuroendocrine tumors - who had received peptide receptor radionuclide therapy or targeted therapy or both. Patients were randomly assigned in a 2:1 ratio to receive cabozantinib at a dose of 60 mg daily or placebo. The primary end point was progression-free survival as assessed by blinded independent central review. Key secondary end points …

Handshake Antimicrobial Stewardship For Adult Surgical Patients, Abby Kosharek, Elizabeth Neuner, Emily Welch, Spenser January, Alice Bewley, Kevin Hsueh, Sena Sayood

2020-Current year OA Pubs

OBJECTIVE: Evaluate the effects of handshake stewardship on adult general surgical units.

DESIGN: Retrospective quasi-experimental pre- and post-intervention study.

SETTING: A total of 1,278 bed academic medical center with a level 1 trauma center in St. Louis, Missouri.

PATIENTS: Adults admitted to general surgery units.

INTERVENTION: Once weekly handshake antimicrobial stewardship rounds were initiated in January 2022 on adult general surgery units. The handshake stewardship team consisted of an infectious diseases (ID) physician and pharmacist who reviewed charts of patients receiving systemic antimicrobials without a formal ID consult. Antimicrobial recommendations were delivered in person to general surgery teams including trauma, …

Assessment Of Environmental, Sociocultural, And Physiological Influences On Women's Toileting Decisions And Behaviors Using "Where I Go": Pilot Study Of A Mobile App, Abigail R Smith, Elizabeth R Mueller, Cora E Lewis, Alayne Markland, Caroline Smerdon, Ariana L Smith, Siobhan Sutcliffe, Jean F Wyman, Lisa Kane Low, Janis M Miller

2020-Current year OA Pubs

BACKGROUND: Little is known about women's decisions around toileting for urination and how those decisions influence moment-to-moment behaviors to manage bladder needs. The new smartphone app "Where I Go" captures such nuanced and granular data in real-world environments.

OBJECTIVE: This study aims to describe participant engagement with "Where I Go", variation in novel parameters collected, and readiness for the data collection tool's use in population-based studies.

METHODS: "Where I Go" has three components: (1) real-time data, (2) short look-back periods (3-4 h), and (3) event location (GPS recorded at each interaction). The sample size was 44 women. Recording of real-time …

Dna Immunotherapy For Recurrent Respiratory Papillomatosis (Rrp): Phase 1/2 Study Assessing Efficacy, Safety, And Immunogenicity Of Ino-3107, Matthew P Morrow, Randal C Paniello, Et Al.

2020-Current year OA Pubs

Recurrent respiratory papillomatosis (RRP) is a chronic airway disease caused by Human Papillomavirus (HPV). INO-3107, DNA immunotherapy designed to elicit T-cells against HPV-6 and HPV-11, was evaluated in a 52-week Phase 1/2 study for efficacy, safety, and immunogenicity (NCT04398433). Thirty-two eligible adults with HPV-6 and/or HPV-11 RRP, requiring ≥2 surgical interventions in the year preceding dosing were enrolled between October 2020 and November 2021 and administered 4 INO-3107 doses by intramuscular injection followed by electroporation. The primary endpoint was safety and tolerability, as assessed by treatment-emergent adverse events (TEAEs). Secondary endpoints included surgical intervention frequency and change in RRP Severity …

Phgdh Inhibition And Foxo3 Modulation Drives Puma-Dependent Apoptosis In Osteosarcoma, Toshinao Oyama, Caitlyn B Brashears, Richa Rathore, Heather Benect-Hamilton, Katharine E Caldwell, Naomi Dirckx, William G Hawkins, Brian A Van Tine

2020-Current year OA Pubs

Osteosarcoma is a bone cancer that has been found to be metabolically dependent on the conversion of glucose to serine through the rate-limiting enzyme 3-phosphoglycerate dehydrogenase (PHGDH). The upregulation of PHGDH has been correlated with poor patient survival, and the inhibition of the serine synthesis pathway using targeted small-molecule inhibition of PHGDH induces a rapid metabolic adaptation that prevents cell death due to pro-survival signaling through the mammalian target of rapamycin complex 1 (mTORC1) pathway. Here, PHGDH inhibition in combination with mTORC1 signaling modulation for the treatment of osteosarcoma was evaluated. When combined with PHGDH inhibition, several non-rapalog inhibitors of …

Fiber- And Acetate-Mediated Modulation Of Mhc-Ii Expression On Intestinal Epithelium Protects From Clostridioides Difficile Infection, José L Fachi, Tihana Trsan, Silvia Penati, Susan Gilfillan, Siyan Cao, Krzysztof L Hyrc, Xiuli Liu, Patrick Fernandes Rodrigues, Bishan Bhattarai, Marco Colonna, Et Al.

2020-Current year OA Pubs

Here, we explore the relationship between dietary fibers, colonic epithelium major histocompatibility complex class II (MHC-II) expression, and immune cell interactions in regulating susceptibility to Clostridioides difficile infection (CDI). We find that a low-fiber diet increases MHC-II expression in the colonic epithelium, which, in turn, worsens CDI by promoting the development of pathogenic CD4

Utility Of Caregiver Signaling Questions To Detect Neurocognitive Impairment In Children With Sickle Cell Disease, Christina M Dandar, Lakia Kearson, Jennifer N Longoria, Brian Potter, Allison A King, Jeffrey Gossett, Clifford M Takemoto, Jane S Hankins, Guolian Kang, Andrew M Heitzer

2020-Current year OA Pubs

The American Society of Hematology cerebrovascular guidelines for sickle cell disease (SCD) recommend surveillance using signaling questions to screen for neurocognitive difficulties, although the clinical utility of these signaling questions has yet to be established. This study aimed to determine the clinical utility of caregiver signaling questions for detecting significant neurocognitive impairment (defined as >1.5 standard deviation [SD] below the normative mean on ≥2 measures) and domain-specific impairment (defined as >1.5 SD below the normative mean) in children and adolescents with SCD. A total of 421 caregivers of children with SCD aged 8 to 17 years (62% hemoglobin SS (HbSS) …

Assessing Dynamic Cognitive Function In The Daily Lives Of Youths With And Without Type 1 Diabetes: Usability Study, Mary Katherine Ray, Jorie Fleming, Andrew Aschenbrenner, Jason Hassenstab, Brooke Redwine, Carissa Burns, Ana Maria Arbelaez, Mary Ellen Vajravelu, Tamara Hershey

2020-Current year OA Pubs

BACKGROUND: Studies have shown a relationship between worse glycemic control and lower cognitive scores in youths with type 1 diabetes (T1D). However, most studies assess long-term glucose control (eg, years-decades) and cognition at a single time point. Understanding this relationship at a higher temporal resolution (eg, minutes-hours) and in naturalistic settings has potential clinical implications. Newer technology (eg, continuous glucose monitoring [CGM] and ecological momentary assessment) provides a unique opportunity to explore the glucose dynamics that influence dynamic cognition; that is, cognitive functions that fluctuate short-term and are influenced by environmental factors.

OBJECTIVE: Before we can assess this relationship, we …

The Foundational Capabilities Of Large Language Models In Predicting Postoperative Risks Using Clinical Notes, Charles Alba, Bing Xue, Joanna Abraham, Thomas Kannampallil, Chenyang Lu

2020-Current year OA Pubs

Clinical notes recorded during a patient's perioperative journey holds immense informational value. Advances in large language models (LLMs) offer opportunities for bridging this gap. Using 84,875 preoperative notes and its associated surgical cases from 2018 to 2021, we examine the performance of LLMs in predicting six postoperative risks using various fine-tuning strategies. Pretrained LLMs outperformed traditional word embeddings by an absolute AUROC of 38.3% and AUPRC of 33.2%. Self-supervised fine-tuning further improved performance by 3.2% and 1.5%. Incorporating labels into training further increased AUROC by 1.8% and AUPRC by 2%. The highest performance was achieved with a unified foundation model, …

Toward Equity In Cultivating A "Garden Of Mentors:" An Exploration Of Networking Experiences In An Implementation Research Training Program, Loni J Parrish, Amanda Gilbert, Kate Hoppe, Gloria D Coronado, Karen M Emmons, Amy A Eyler, Debra Haire-Joshu, Rebekah R Jacob, Alison B Hamilton, Shelly J Kannuthurai, Ross C Brownson

2020-Current year OA Pubs

INTRODUCTION: The Institute for Implementation Science Scholars (IS-2) is a dissemination and implementation (D&I) science training and mentoring program. A key component of IS-2 is collaborating and networking. To build knowledge on effective networking and mentoring, this study sought to 1) conduct a social network analysis to determine whether underrepresented scholars have equivalent levels of connection and 2) gain insights into the differences in networking among racial/ethnic subgroups of scholars.

METHODS: Social network survey data were used to select participants based on number of collaborative connections (highest, lowest) and racial/ ethnic category (underrepresented, not underrepresented). Interviews were recorded, transcribed, and …

Phosphorylation Of Cryab Induces A Condensatopathy To Worsen Post-Myocardial Infarction Left Ventricular Remodeling, Moydul Islam, David R. Rawnsley, Xiucui Ma, Walter Navid, Chen Zhao, Xumin Guan, Layla Foroughi, John T. Murphy, Honora Navid, Carla J. Weinheimer, Attila Kovacs, Jessica Nigro, Aaradhya Diwan, Ryan P. Chang, Minu Kumari, Martin E. Young, Babak Razani, Kenneth B. Margulies, Mahmoud Abdellatif, Simon Sedej, Ali Javaheri, Douglas F. Covey, Kartik Mani, Abhinav Diwan

2020-Current year OA Pubs

Protein aggregates are emerging therapeutic targets in rare monogenic causes of cardiomyopathy and amyloid heart disease, but their role in more prevalent heart-failure syndromes remains mechanistically unexamined. We observed mislocalization of desmin and sarcomeric proteins to aggregates in human myocardium with ischemic cardiomyopathy and in mouse hearts with post-myocardial infarction ventricular remodeling, mimicking findings of autosomal-dominant cardiomyopathy induced by the R120G mutation in the cognate chaperone protein CRYAB. In both syndromes, we demonstrate increased partitioning of CRYAB phosphorylated on serine 59 to NP40-insoluble aggregate-rich biochemical fraction. While CRYAB undergoes phase separation to form condensates, the phosphomimetic mutation of serine 59 …

A Neuronal Code For Object Representation And Memory In The Human Amygdala And Hippocampus, Runnan Cao, Peter Brunner, Puneeth N Chakravarthula, Krista L Wahlstrom, Cory Inman, Elliot H Smith, Xin Li, Adam N Mamelak, Nicholas J Brandmeir, Ueli Rutishauser, Jon T Willie, Shuo Wang

2020-Current year OA Pubs

How the brain encodes, recognizes, and memorizes general visual objects is a fundamental question in neuroscience. Here, we investigated the neural processes underlying visual object perception and memory by recording from 3173 single neurons in the human amygdala and hippocampus across four experiments. We employed both passive-viewing and recognition memory tasks involving a diverse range of naturalistic object stimuli. Our findings reveal a region-based feature code for general objects, where neurons exhibit receptive fields in the high-level visual feature space. This code can be validated by independent new stimuli and replicated across all experiments, including fixation-based analyses with large natural …

Lifespan In Rodents With Myt1l Heterozygous Mutation, Allyson Schreiber, Raylynn G Swift, Leslie Wilson, Kristen L Kroll, Joseph D Dougherty, Susan E Maloney

2020-Current year OA Pubs

MYT1L syndrome is a newly recognized disorder characterized by intellectual disability, speech and motor delay, neuroendocrine disruptions, ADHD, and autism. In order to study this gene and its association with these phenotypes, our lab recently created a Myt1l heterozygous mutant mouse inspired by a clinically relevant mutation. This model recapitulates several of the physical and neurologic abnormalities seen in humans with MYT1L syndrome, such as weight gain, microcephaly, and behavioral disruptions. The majority of patients with this syndrome are young, and little is known about the impact of age on health and mortality in these patients. Using a Myt1l mutant …

Cimpact-Now Update 8: Clarifications On Molecular Risk Parameters And Recommendations For Who Grading Of Meningiomas, Felix Sahm, Sonika Dahiya, Et Al.

2020-Current year OA Pubs

Meningiomas are the most frequent primary intracranial tumors. Hence, they constitute a major share of diagnostic specimens in neuropathology practice. The 2021 WHO Classification of Central Nervous System Tumors ("CNS5") has introduced the first molecular grading parameters for meningioma with oncogenic variants in the TERT promoter and homozygous deletion of CDKN2A/B as markers for CNS WHO grade 3. However, after the publication of the new classification volume, clarifications were requested, not only on novel but also on long-standing questions in meningioma grading that were beyond the scope of the WHO "blue book." In addition, more recent research into possible new …