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Articles 6031 - 6060 of 43949
Full-Text Articles in Entire DC Network
Parenting Styles, Attachment And Emotional Support As Determinants Of Adjustment To College Life Among Fresh Undergraduates, Akanbi Samuel T., Tolulope O. Olayiwola-Adedoja, Tolulope R. Olasoji, Toyin O. Adaramoye
Parenting Styles, Attachment And Emotional Support As Determinants Of Adjustment To College Life Among Fresh Undergraduates, Akanbi Samuel T., Tolulope O. Olayiwola-Adedoja, Tolulope R. Olasoji, Toyin O. Adaramoye
Journal of Educational and Psychological Studies
Abstract:The study examined the relationship of parenting styles, attachment and emotional support with adjustment to college life among fresh undergraduates. The study employed a correlational design as a guide. Three hundred fresh undergraduates of the Federal University, Oye-Ekiti, Nigeria -123 males; 177 females, who were selected through Stratified random sampling approach participated in the study. The Student Adaptation to College Questionnaire (SACQ; α= .93); Parental Authority Questionnaire (PAQ; α= .92); Attachment Style Questionnaire (ASQ; α= .88); and Perceived Emotional Support Scale (PES; α= .89) were the instrument used for data collection. The data generated were statistically analysed with the aid …
Effect Of Heat Stress On The Expression Of Circulating Cyto(Chemo)Kine And Inflammatory Markers In Broiler Chickens Selected For High- Or Low-Water Efficiency, Elizabeth S. Greene, Travis Tabler, Walter G. Bottje, Sara Orlowski, Sami Dridi
Effect Of Heat Stress On The Expression Of Circulating Cyto(Chemo)Kine And Inflammatory Markers In Broiler Chickens Selected For High- Or Low-Water Efficiency, Elizabeth S. Greene, Travis Tabler, Walter G. Bottje, Sara Orlowski, Sami Dridi
Poultry Science Faculty Publications and Presentations
Background:
Water scarcity is a current, significant global concern that will only increase under the pressure of climate change. Improving water efficiency of poultry is a new and promising area to help temper agriculture's future impact on fresh water availability. Here, we explored the effects of acute heat stress (HS) on circulating stress and inflammatory markers in 2 lines of broilers divergently selected for water efficiency. Methods:
Male chicks from low (LWE) and high water efficient (HWE) lines were raised in 12 environmental chambers (2 pens/chamber, 6 chambers/line, 20 birds/pen) under normal conditions until day 28. On day 29, birds …
Drowsy Driver Detection System Via Facial Recognition And Driving Data, Nur Iman Kamila Azharudin, Hafizah Mansor, Shaila Sharmin
Drowsy Driver Detection System Via Facial Recognition And Driving Data, Nur Iman Kamila Azharudin, Hafizah Mansor, Shaila Sharmin
Malaysian Journal of Computing (MJoC)
According to the National Highway Traffic Safety Administration, an estimated 17.6% of all fatal crashes in the years 2017–2021 involved a drowsy driver. This study proposes a drowsy driver detection system that uses both facial recognition and vehicular data to detect if a driver is feeling sleepy behind the wheel. We aim to address a lack of works in the literature that combine data measured from the driver (image or biological data) and vehicular data for drowsy driver detection. Our primary data was collected from simulated driving sessions in which a camera was used to record test drivers’ faces while …
Predicting Covid-19 Trends A Deep Dive Into Time Dependent Sirsd With Deep Learning Technique, Abdul Basit, Jasni Mohamad Zain, Abdul Kadir Jumaat, Nur’Izzati Hamdan, Hafiza Zoya Mojahid
Predicting Covid-19 Trends A Deep Dive Into Time Dependent Sirsd With Deep Learning Technique, Abdul Basit, Jasni Mohamad Zain, Abdul Kadir Jumaat, Nur’Izzati Hamdan, Hafiza Zoya Mojahid
Malaysian Journal of Computing (MJoC)
The COVID-19 pandemic, also known as Coronavirus Disease 2019, has affected over 700 million people globally, resulting in approximately 7 million deaths. Research has proposed multiple mathematical models to institute a disease transmission framework and predict the disease growth. Most of the existing mathematical disease growth prediction models are less effective due to the exclusion of the re-susceptible scenarios and overlooks their timedependent properties, which change continuously during the viral transmission process. Another popular prediction technique is deep learning approaches. However, existing methods often fail to accurately capture the dynamic trends of epidemics during their spreading phases in short-term and …
The Cretaceous Diatom Database: A Tool For Investigating Early Diatom Evolution, Karolina Brylka, Matt P. Ashworth, Andrew J. Alverson, David J. Conley
The Cretaceous Diatom Database: A Tool For Investigating Early Diatom Evolution, Karolina Brylka, Matt P. Ashworth, Andrew J. Alverson, David J. Conley
Biological Sciences Faculty Publications and Presentations
The Cretaceous period is the time of the first appearance of the diatoms in the fossil record. These fossils give us direct evidence of the age and early evolution of the diatom lineage. The fossil record, however, is incomplete and therefore often extrapolated through time-calibrated phylogenies. These two approaches offer different perspectives on the early evolution of diatoms, which is still poorly understood. We compiled the first comprehensive Cretaceous Diatom Database, a tool to investigate the taxonomy, diversity, and occurrence of the earliest known diatom lineages. To further aid the integration and use of the oldest diatom fossils in molecular …
Proteomic Analysis Reveals Major Proteins And Pathways That Mediate The Effect Of 17-Β-Estradiol In Cell Division And Apoptosis In Breast Cancer Mcf7 Cells, Zhenqi Zhou, Brihget Sicairos, Jianhong Zhou, Yuchun Du
Proteomic Analysis Reveals Major Proteins And Pathways That Mediate The Effect Of 17-Β-Estradiol In Cell Division And Apoptosis In Breast Cancer Mcf7 Cells, Zhenqi Zhou, Brihget Sicairos, Jianhong Zhou, Yuchun Du
Biological Sciences Faculty Publications and Presentations
Despite extensive research, the genes/proteins and pathways responsible for the physiological effects of estrogen remain elusive. In this study, we determined the effect of estrogen on global protein expression in breast cancer MCF7 cells using a proteomic method. The expression of 77 cytosolic, 74 nuclear, and 81 membrane/organelle proteins was significantly altered by 17-β-estradiol (E2). Protein enrichment analyses suggest that E2 may stimulate cell division primarily by promoting the G1 to S phase transition and advancing the G2/M checkpoint. The effect of E2 on cell survival was complex, as it could simultaneously enhance and inhibit apoptosis. Bioinformatics analysis suggests that …
Thinking Through How Race, Disability, And Gender Work Together, Rosemarie Garland-Thomson, Desiree Valentine
Thinking Through How Race, Disability, And Gender Work Together, Rosemarie Garland-Thomson, Desiree Valentine
Philosophy Faculty Research and Publications
No abstract provided.
Update On Recommendations For Surveillance For Children With Predisposition To Hematopoietic Malignancy, Luke D Maese, Marcin W Wlodarski, Sun Young Kim, Alison A Bertuch, Gaelle Bougeard, Vivian Y Chang, Lucy A Godley, Payal P Khincha, Roland P Kuiper, Harry Lesmana, Rose B Mcgee, Lisa J Mcreynolds, Julia Meade, Sharon E Plon, Sharon A Savage, Sarah R Scollon, Hamish S Scott, Michael F Walsh, Kim E Nichols, Christopher C Porter
Update On Recommendations For Surveillance For Children With Predisposition To Hematopoietic Malignancy, Luke D Maese, Marcin W Wlodarski, Sun Young Kim, Alison A Bertuch, Gaelle Bougeard, Vivian Y Chang, Lucy A Godley, Payal P Khincha, Roland P Kuiper, Harry Lesmana, Rose B Mcgee, Lisa J Mcreynolds, Julia Meade, Sharon E Plon, Sharon A Savage, Sarah R Scollon, Hamish S Scott, Michael F Walsh, Kim E Nichols, Christopher C Porter
Center for Medical Ethics and Health Policy Staff Publications
Children harboring certain germline gene variants have an increased risk of developing myelodysplastic syndrome (MDS) and other hematopoietic malignancies (HM), such as leukemias and lymphomas. Recent studies have identified an expanding number of these predisposition genes, with variants most prevalent in children with MDS but also found in children with other HM. For some hematopoietic malignancy predispositions (HMP), specifically those with a high risk of MDS, early intervention through hematopoietic stem cell transplantation can favorably impact overall survival, providing a rationale for rigorous surveillance. A multidisciplinary panel of experts at the 2023 AACR Childhood Cancer Predisposition Workshop reviewed the latest …
Human Embryonic Genetic Mosaicism And Its Effects On Development And Disease, Sarah M Waldvogel, Jennifer E Posey, Margaret A Goodell
Human Embryonic Genetic Mosaicism And Its Effects On Development And Disease, Sarah M Waldvogel, Jennifer E Posey, Margaret A Goodell
Center on Aging Staff Publications
Nearly every mammalian cell division is accompanied by a mutational event that becomes fixed in a daughter cell. When carried forward to additional cell progeny, a clone of variant cells can emerge. As a result, mammals are complex mosaics of clones that are genetically distinct from one another. Recent high-throughput sequencing studies have revealed that mosaicism is common, clone sizes often increase with age and specific variants can affect tissue function and disease development. Variants that are acquired during early embryogenesis are shared by multiple cell types and can affect numerous tissues. Within tissues, variant clones compete, which can result …
Breakdown Of Boltzmann-Type Models For The Alignment Of Self-Propelled Rods, Patrick Murphy, Misha Perepelitsa, Ilya Timofeyev, Matan Lieber-Kotz, Brandon Islas, Oleg A. Igoshin
Breakdown Of Boltzmann-Type Models For The Alignment Of Self-Propelled Rods, Patrick Murphy, Misha Perepelitsa, Ilya Timofeyev, Matan Lieber-Kotz, Brandon Islas, Oleg A. Igoshin
Faculty Research, Scholarly, and Creative Activity
Studies in the collective motility of organisms use a range of analytical approaches to formulate continuous kinetic models of collective dynamics from rules or equations describing agent interactions. However, the derivation of these kinetic models often relies on Boltzmann's “molecular chaos” hypothesis, which assumes that correlations between individuals are short-lived. While this assumption is often the simplest way to derive tractable models, it is often not valid in practice due to the high levels of cooperation and self-organization present in biological systems. In this work, we illustrated this point by considering a general Boltzmann-type kinetic model for the alignment of …
A Top Model Of Urban Residents’ Subjective Well-Being In China, Bing Pan, Deborah Kerstetter, Xiaoli Yi, Gaojun Zhang, Rui Li, Jie Gao, Xiangyou Sharon Shen, Guangming Li
A Top Model Of Urban Residents’ Subjective Well-Being In China, Bing Pan, Deborah Kerstetter, Xiaoli Yi, Gaojun Zhang, Rui Li, Jie Gao, Xiangyou Sharon Shen, Guangming Li
Faculty Research, Scholarly, and Creative Activity
Past research on subjective well-being (SWB) in Western society and China has revealed various contributing factors. This study conducted a series of interviews with Chinese urban residents to systematically analyze those factors based on Bronfenbrenner’s Ecological System Theory. The results revealed that 5 layers, 23 factors, and 55 elements, many of which had distinct Chinese characteristics, contributed to Chinese urban residents’ SWB. The Top Model of SWB, visualized as a spinning top or gyroscope, showcased the interdependent layers of factors impacting Chinese urban residents’ SWB. At its vertical axis is a time dimension as residents often reflect on factors by …
Dominantly Inherited Muscle Disorders: Understanding Their Complexity And Exploring Therapeutic Approaches, Andrew R Findlay
Dominantly Inherited Muscle Disorders: Understanding Their Complexity And Exploring Therapeutic Approaches, Andrew R Findlay
2020-Current year OA Pubs
Treatments for disabling and life-threatening hereditary muscle disorders are finally close to becoming a reality. Research has thus far focused primarily on recessive forms of muscle disease. The gene replacement strategies that are commonly employed for recessive, loss-of-function disorders are not readily translatable to most dominant myopathies owing to the presence of a normal chromosome in each nucleus, hindering the development of novel treatments for these dominant disorders. This is largely due to their complex, heterogeneous disease mechanisms that require unique therapeutic approaches. However, as viral and RNA interference-based therapies enter clinical use, key tools are now in place to …
Network-Level Enrichment Provides A Framework For Biological Interpretation Of Machine Learning Results, Jiaqi Li, Ari Segel, Xinyang Feng, Jiaxin Cindy Tu, Andy Eck, Kelsey T King, Babatunde Adeyemo, Nicole R Karcher, Likai Chen, Adam T Eggebrecht, Muriah D Wheelock
Network-Level Enrichment Provides A Framework For Biological Interpretation Of Machine Learning Results, Jiaqi Li, Ari Segel, Xinyang Feng, Jiaxin Cindy Tu, Andy Eck, Kelsey T King, Babatunde Adeyemo, Nicole R Karcher, Likai Chen, Adam T Eggebrecht, Muriah D Wheelock
2020-Current year OA Pubs
Machine learning algorithms are increasingly being utilized to identify brain connectivity biomarkers linked to behavioral and clinical outcomes. However, research often prioritizes prediction accuracy at the expense of biological interpretability, and inconsistent implementation of ML methods may hinder model accuracy. To address this, our paper introduces a network-level enrichment approach, which integrates brain system organization in the context of connectome-wide statistical analysis to reveal network-level links between brain connectivity and behavior. To demonstrate the efficacy of this approach, we used linear support vector regression (LSVR) models to examine the relationship between resting-state functional connectivity networks and chronological age. We compared …
Dean's Update, October 2024, Neil W. Schluger
Dean's Update, October 2024, Neil W. Schluger
SOM Dean's Research Newsletter
No abstract provided.
Transcription And Post-Translational Mechanisms: Dual Regulation Of Adiponectin-Mediated Occludin Expression In Diabetes, Yanru Duan, Demin Liu, Huahui Yu, Shihan Zhang, Yihua Xia, Zhiyong Du, Yanwen Qin, Yajing Wang, Xin-Liang Ma, Huirong Liu, Yunhui Du
Transcription And Post-Translational Mechanisms: Dual Regulation Of Adiponectin-Mediated Occludin Expression In Diabetes, Yanru Duan, Demin Liu, Huahui Yu, Shihan Zhang, Yihua Xia, Zhiyong Du, Yanwen Qin, Yajing Wang, Xin-Liang Ma, Huirong Liu, Yunhui Du
Department of Emergency Medicine Faculty Papers
BACKGROUND: Occludin, a crucial component of tight junctions, has emerged as a promising biomarker for the diagnosis of acute ischemic disease, highlighting its significant potential in clinical applications. In the diabetes, Occludin serves as a downstream target gene intricately regulated by the adiponectin (APN) signaling pathway. However, the specific mechanism by which adiponectin regulates Occludin expression remains unclear.
METHODS AND RESULTS: Endothelial-specific Ocln knockdown reduced APN-mediated blood flow recovery after femoral artery ligation and nullified APN's protection against high-fat diet (HFD)-triggered apoptosis and angiogenesis inhibition in vivo. Mechanically, we have meticulously elucidated APN's regulatory role in Occludin expression through a …
Chemometric Processing Of Ecstasy Tablet Thermal Profiles Using Machine Learning Methods, Ali Arif Ibrahim
Chemometric Processing Of Ecstasy Tablet Thermal Profiles Using Machine Learning Methods, Ali Arif Ibrahim
Theses
Ecstasy is an amphetamine-type substance scientifically known as MDMA (3,4- methylenedioxymethamphetamine) that belongs to a group of illicit drugs called “club drugs” that are widespread and distributed illegally (Maione et al., 2016). Its ever-growing popularity and variety in multiple forms, shapes, and colors complicates the identification and tracking process to law enforcement and forensic analysts. The current study focused on integrating data analytics and advanced chemometric methods to Differential Scanning Calorimetry (DSC) to analyze the thermal profiles of ecstasy tablets. This approach aims to discriminate between tablets linked to different suspects and origins through thermal profiling, which will provide law …
Resistance To Acetyl Coenzyme A Carboxylase (Accase) Inhibitor In Lolium Multiflorum: Effect Of Multiple Target-Site Mutations, Gulab Rangani, Ana Claudia Langaro, Shilpi Agrawal, Reiofeli Algodon Salas-Perez, Juan Camilo Velasquez, Christopher E. Nelson, Nilda Roma-Burgos
Resistance To Acetyl Coenzyme A Carboxylase (Accase) Inhibitor In Lolium Multiflorum: Effect Of Multiple Target-Site Mutations, Gulab Rangani, Ana Claudia Langaro, Shilpi Agrawal, Reiofeli Algodon Salas-Perez, Juan Camilo Velasquez, Christopher E. Nelson, Nilda Roma-Burgos
Crop, Soil and Environmental Sciences Faculty Publications and Presentations
Italian ryegrass (Lolium multiflorum Lam.) is a persistent weed species that poses significant management challenges in key agricultural crops such as wheat, corn, cotton, and soybean. This study investigated the prevalence of resistance to ACCase inhibitor herbicides, specifically diclofop and pinoxaden, among field-collected Italian ryegrass populations. The survey revealed widespread resistance to diclofop and emerging cross-resistance to pinoxaden. To elucidate the physiological mechanism of ACCase herbicide resistance, we investigated mutations in the carboxyl-transferase (CT) domain of the ACCase enzyme, a critical region for herbicide sensitivity. Using dCAPS assays and CT domain sequencing, several known resistance-conferring mutations were detected in …
Oxyfluorfen Use In Combination With Clomazone Or Quinclorac, Jason K. Norsworthy, Casey H. Arnold, Thomas R. Butts, Chad W. Shelton
Oxyfluorfen Use In Combination With Clomazone Or Quinclorac, Jason K. Norsworthy, Casey H. Arnold, Thomas R. Butts, Chad W. Shelton
Crop, Soil and Environmental Sciences Faculty Publications and Presentations
Oxyfluorfen is a herbicide that inhibits protoporphyrinogen IX oxidase and has shown significant potential in its ability to control barnyardgrass. Oxyfluorfen is categorized as a Group 14 herbicide by the Herbicide Resistance Action Committee (HRAC)/Weed Science Society of America (WSSA). Despite its current lack of labeling for use on rice in the mid-southern United States due to its potential to cause crop injury, the introduction of a trait in rice that confers resistance to oxyfluorfen could provide producers with an effective alternative site of action for weed control. Field experiments were conducted during the 2021 and 2022 growing seasons near …
Clomazone And Oxyfluorfen Combinations In A Flooded Rice System, Jason K. Norsworthy, Casey H. Arnold, Thomas R. Butts, Trenton L. Roberts, Chad W. Shelton
Clomazone And Oxyfluorfen Combinations In A Flooded Rice System, Jason K. Norsworthy, Casey H. Arnold, Thomas R. Butts, Trenton L. Roberts, Chad W. Shelton
Crop, Soil and Environmental Sciences Faculty Publications and Presentations
Rice producers battle herbicide-resistant weeds worldwide while producing rice for ≥50% of the world’s population. Oxyfluorfen can provide rice producers with an alternative site of action for barnyardgrass control, as there are no documented cases of grass weeds being resistant to the herbicide in the mid-southern United States. Oxyfluorfen is anticipated to be labeled in the Roxy Rice Production System and may be sold as a clomazone/oxyfluorfen premixture; hence, experiments were conducted in 2021 and 2022 to evaluate preemergence-applied clomazone/oxyfluorfen ratios compared to clomazone alone on silt loam and clay soils. All ratios of the herbicides caused less than 7% …
A Coupled Spatial-Network Model: A Mathematical Framework For Applications In Epidemiology, Hannah Kravitz, Christina Duron, Moysey Brio
A Coupled Spatial-Network Model: A Mathematical Framework For Applications In Epidemiology, Hannah Kravitz, Christina Duron, Moysey Brio
Mathematics and Statistics Faculty Publications and Presentations
There is extensive evidence that network structure (e.g., air transport, rivers, or roads) may significantly enhance the spread of epidemics into the surrounding geographical area. A new compartmental modeling framework is proposed which couples well-mixed (ODE in time) population centers at the vertices, 1D travel routes on the graph’s edges, and a 2D continuum containing the rest of the population to simulate how an infection spreads through a population. The edge equations are coupled to the vertex ODEs through junction conditions, while the domain equations are coupled to the edges through boundary conditions. A numerical method based on spatial finite …
Htlv-1 Infected T Cells Cause Bone Loss Via Small Extracellular Vesicles, Nitin Kumar Pokhrel, Haniya Habib, Shamreethaa Seeniraj, Ancy Joseph, Daniel Rauch, Linda Cox, Robert Sprung, Petra Erdmann Gilmore, Qiang Zhang, Robert Reid Townsend, Lee Ratner, Katherine N Weilbaecher, Deborah J Veis, Et Al.
Htlv-1 Infected T Cells Cause Bone Loss Via Small Extracellular Vesicles, Nitin Kumar Pokhrel, Haniya Habib, Shamreethaa Seeniraj, Ancy Joseph, Daniel Rauch, Linda Cox, Robert Sprung, Petra Erdmann Gilmore, Qiang Zhang, Robert Reid Townsend, Lee Ratner, Katherine N Weilbaecher, Deborah J Veis, Et Al.
2020-Current year OA Pubs
Adult T cell leukaemia (ATL), caused by infection with human T- lymphotropic virus type 1 (HTLV-1), is often complicated by hypercalcemia and osteolytic lesions. Therefore, we studied the communication between patient-derived ATL cells (ATL-PDX) and HTLV-1 immortalized CD4+ T cell lines (HTLV/T) with osteoclasts and their effects on bone mass in mice. Intratibial inoculation of some HTLV/T leads to a profound local decrease in bone mass similar to marrow-replacing ATL-PDX, despite the fact that few HTLV/T cells persisted in the bone. To study the direct effect of HTLV/T and ATL-PDX on osteoclasts, supernatants were added to murine and human osteoclast …
A Mouse Model For Conditional Expression Of Activated Β-Catenin In Epidermal Keratinocytes, Vineet K Maurya, Yan Ying, John P Lydon
A Mouse Model For Conditional Expression Of Activated Β-Catenin In Epidermal Keratinocytes, Vineet K Maurya, Yan Ying, John P Lydon
Faculty, Staff and Students Publications
We report the generation and characterization of the K5: CAT bigenic mouse in which the constitutively activated form of β-catenin (ΔN89 β-catenin) is conditionally expressed in cytokeratin-5 (K5) positive epidermal keratinocytes. Following short-term doxycycline intake during the telogen resting phase, the adult K5: CAT bigenic develops enlarged pilosebaceous units that expand deep into the dermis, an expansion usually observed during the anagen growth phase. Prolonged doxycycline treatment results in significant thickening and folding of the K5: CAT epidermis. During this persistent induction period, there is clear evidence of increased keratinocyte proliferation, particularly in the epidermal basal cell layer and the …
Disruption Of Neural Periodicity Predicts Clinical Response After Deep Brain Stimulation For Obsessive-Compulsive Disorder, Nicole R Provenza, Sandesh Reddy, Anthony K Allam, Sameer V Rajesh, Nabeel Diab, Gabriel Reyes, Rose M Caston, Kalman A Katlowitz, Ajay D Gandhi, Raphael A Bechtold, Huy Q Dang, Ricardo A Najera, Nisha Giridharan, Katherine E Kabotyanski, Faiza Momin, Mohammed Hasen, Garrett P Banks, Brian J Mickey, Brent M Kious, Ben Shofty, Benjamin Y Hayden, Jeffrey A Herron, Eric A Storch, Ankit B Patel, Wayne K Goodman, Sameer A Sheth
Disruption Of Neural Periodicity Predicts Clinical Response After Deep Brain Stimulation For Obsessive-Compulsive Disorder, Nicole R Provenza, Sandesh Reddy, Anthony K Allam, Sameer V Rajesh, Nabeel Diab, Gabriel Reyes, Rose M Caston, Kalman A Katlowitz, Ajay D Gandhi, Raphael A Bechtold, Huy Q Dang, Ricardo A Najera, Nisha Giridharan, Katherine E Kabotyanski, Faiza Momin, Mohammed Hasen, Garrett P Banks, Brian J Mickey, Brent M Kious, Ben Shofty, Benjamin Y Hayden, Jeffrey A Herron, Eric A Storch, Ankit B Patel, Wayne K Goodman, Sameer A Sheth
Faculty, Staff and Students Publications
Recent advances in surgical neuromodulation have enabled chronic and continuous intracranial monitoring during everyday life. We used this opportunity to identify neural predictors of clinical state in 12 individuals with treatment-resistant obsessive-compulsive disorder (OCD) receiving deep brain stimulation (DBS) therapy ( NCT05915741 ). We developed our neurobehavioral models based on continuous neural recordings in the region of the ventral striatum in an initial cohort of five patients and tested and validated them in a held-out cohort of seven additional patients. Before DBS activation, in the most symptomatic state, theta/alpha (9 Hz) power evidenced a prominent circadian pattern and a high …
Mouse Corneal Immune Cell Heterogeneity Revealed By Single-Cell Rna Sequencing, Ebru Yaman, Nicole Heyer, Cintia S De Paiva, Mary Ann Stepp, Stephen C Pflugfelder, Jehan Alam
Mouse Corneal Immune Cell Heterogeneity Revealed By Single-Cell Rna Sequencing, Ebru Yaman, Nicole Heyer, Cintia S De Paiva, Mary Ann Stepp, Stephen C Pflugfelder, Jehan Alam
Faculty, Staff and Students Publications
PURPOSE: This study aimed to define the heterogeneity, spatial localization, and functional roles of immune cells in the mouse cornea using single-cell RNA sequencing (scRNA-seq) and immunofluorescent staining.
METHODS: Enriched mouse corneal immune cells (C57BL/6 strain, age 16-20 weeks) underwent single-cell RNA sequencing library preparation, sequencing, and analysis with Seurat, Monocle 3, and CellChat packages in R. Pathway analysis used Qiagen Ingenuity Pathway Analysis software. Immunostaining confirmed cell distribution.
RESULTS: We identified 14 distinct immune cell clusters (56% myeloid and 44% lymphoid). Myeloid populations included resident macrophages, conventional dendritic cells (cDC2s), Langerhans cells, neutrophils, monocytes, and mast cells. Additionally, lymphocyte …
Pkmyt1 Is A Marker Of Treatment Response And A Therapeutic Target For Cdk4/6 Inhibitor-Resistance In Er+ Breast Cancer, Anran Chen, Beom-Jun Kim, Aparna Mitra, Craig T Vollert, Jonathan T Lei, Diana Fandino, Meenakshi Anurag, Matthew V Holt, Xuxu Gou, Jacob B Pilcher, Matthew P Goetz, Donald W Northfelt, Susan G Hilsenbeck, C Gary Marshall, Marc L Hyer, Robert Papp, Shou-Yun Yin, Carmine De Angelis, Rachel Schiff, Suzanne A W Fuqua, Cynthia X Ma, Charles E Foulds, Matthew J Ellis
Pkmyt1 Is A Marker Of Treatment Response And A Therapeutic Target For Cdk4/6 Inhibitor-Resistance In Er+ Breast Cancer, Anran Chen, Beom-Jun Kim, Aparna Mitra, Craig T Vollert, Jonathan T Lei, Diana Fandino, Meenakshi Anurag, Matthew V Holt, Xuxu Gou, Jacob B Pilcher, Matthew P Goetz, Donald W Northfelt, Susan G Hilsenbeck, C Gary Marshall, Marc L Hyer, Robert Papp, Shou-Yun Yin, Carmine De Angelis, Rachel Schiff, Suzanne A W Fuqua, Cynthia X Ma, Charles E Foulds, Matthew J Ellis
Faculty, Staff and Students Publications
Endocrine therapies (ET) with cyclin-dependent kinase 4/6 (CDK4/6) inhibition are the standard treatment for estrogen receptor-α-positive (ER+) breast cancer, however drug resistance is common. In this study, proteogenomic analyses of patient-derived xenografts (PDXs) from patients with 22 ER+ breast cancer demonstrated that protein kinase, membrane-associated tyrosine/threonine one (PKMYT1), a WEE1 homolog, is estradiol (E2) regulated in E2-dependent PDXs and constitutively expressed when growth is E2-independent. In clinical samples, high PKMYT1 mRNA levels associated with resistance to both ET and CDK4/6 inhibition. The PKMYT1 inhibitor lunresertib (RP-6306) with gemcitabine selectively and synergistically reduced the viability of ET and palbociclib-resistant ER+ breast …
Tau Is Required For Glial Lipid Droplet Formation And Resistance To Neuronal Oxidative Stress, Lindsey D Goodman, Isha Ralhan, Xin Li, Shenzhao Lu, Matthew J Moulton, Ye-Jin Park, Pinghan Zhao, Oguz Kanca, Ziyaneh S Ghaderpour Taleghani, Julie Jacquemyn, Joshua M Shulman, Kanae Ando, Kai Sun, Maria S Ioannou, Hugo J Bellen
Tau Is Required For Glial Lipid Droplet Formation And Resistance To Neuronal Oxidative Stress, Lindsey D Goodman, Isha Ralhan, Xin Li, Shenzhao Lu, Matthew J Moulton, Ye-Jin Park, Pinghan Zhao, Oguz Kanca, Ziyaneh S Ghaderpour Taleghani, Julie Jacquemyn, Joshua M Shulman, Kanae Ando, Kai Sun, Maria S Ioannou, Hugo J Bellen
Duncan NRI Faculty and Staff Publications
The accumulation of reactive oxygen species (ROS) is a common feature of tauopathies, defined by Tau accumulations in neurons and glia. High ROS in neurons causes lipid production and the export of toxic peroxidated lipids (LPOs). Glia uptake these LPOs and incorporate them into lipid droplets (LDs) for storage and catabolism. We found that overexpressing Tau in glia disrupts LDs in flies and rat neuron-astrocyte co-cultures, sensitizing the glia to toxic, neuronal LPOs. Using a new fly tau loss-of-function allele and RNA-mediated interference, we found that endogenous Tau is required for glial LD formation and protection against neuronal LPOs. Similarly, …
Oligodendroglial Fatty Acid Metabolism As A Central Nervous System Energy Reserve, Ebrahim Asadollahi, Andrea Trevisiol, Aiman S Saab, Zoe J Looser, Payam Dibaj, Reyhane Ebrahimi, Kathrin Kusch, Torben Ruhwedel, Wiebke Möbius, Olaf Jahn, Jun Yup Lee, Anthony S Don, Michelle-Amirah Khalil, Karsten Hiller, Myriam Baes, Bruno Weber, E Dale Abel, Andrea Ballabio, Brian Popko, Celia M Kassmann, Hannelore Ehrenreich, Johannes Hirrlinger, Klaus-Armin Nave
Oligodendroglial Fatty Acid Metabolism As A Central Nervous System Energy Reserve, Ebrahim Asadollahi, Andrea Trevisiol, Aiman S Saab, Zoe J Looser, Payam Dibaj, Reyhane Ebrahimi, Kathrin Kusch, Torben Ruhwedel, Wiebke Möbius, Olaf Jahn, Jun Yup Lee, Anthony S Don, Michelle-Amirah Khalil, Karsten Hiller, Myriam Baes, Bruno Weber, E Dale Abel, Andrea Ballabio, Brian Popko, Celia M Kassmann, Hannelore Ehrenreich, Johannes Hirrlinger, Klaus-Armin Nave
Duncan NRI Faculty and Staff Publications
Brain function requires a constant supply of glucose. However, the brain has no known energy stores, except for glycogen granules in astrocytes. In the present study, we report that continuous oligodendroglial lipid metabolism provides an energy reserve in white matter tracts. In the isolated optic nerve from young adult mice of both sexes, oligodendrocytes survive glucose deprivation better than astrocytes. Under low glucose, both axonal ATP levels and action potentials become dependent on fatty acid β-oxidation. Importantly, ongoing oligodendroglial lipid degradation feeds rapidly into white matter energy metabolism. Although not supporting high-frequency spiking, fatty acid β-oxidation in mitochondria and oligodendroglial …
Does Glial Lipid Dysregulation Alter Sleep In Alzheimer’S And Parkinson’S Disease?, Lindsey D Goodman, Matthew J Moulton, Guang Lin, Hugo J Bellen
Does Glial Lipid Dysregulation Alter Sleep In Alzheimer’S And Parkinson’S Disease?, Lindsey D Goodman, Matthew J Moulton, Guang Lin, Hugo J Bellen
Duncan NRI Faculty and Staff Publications
In this opinion article, we discuss potential connections between sleep disturbances observed in Alzheimer's disease (AD) and Parkinson's disease (PD) and the dysregulation of lipids in the brain. Research using Drosophila has highlighted the role of glial-mediated lipid metabolism in sleep and diurnal rhythms. Relevant to AD, the formation of lipid droplets in glia, which occurs in response to elevated neuronal reactive oxygen species (ROS), is required for sleep. In disease models, this process is disrupted, arguing a connection to sleep dysregulation. Relevant to PD, the degradation of neuronally synthesized glucosylceramides by glia requires glucocerebrosidase (GBA, a PD-associated risk factor) …
Piezo Ion Channels: Force Sensors Of The Interoceptive Nervous System, Yasmeen M F Hamed, Britya Ghosh, Kara L Marshall
Piezo Ion Channels: Force Sensors Of The Interoceptive Nervous System, Yasmeen M F Hamed, Britya Ghosh, Kara L Marshall
Duncan NRI Faculty and Staff Publications
Many organs are designed to move: the heart pumps each second, the gastrointestinal tract squeezes and churns to digest food, and we contract and relax skeletal muscles to move our bodies. Sensory neurons of the peripheral nervous system detect signals from bodily tissues, including the forces generated by these movements, to control physiology. The processing of these internal signals is called interoception, but this is a broad term that includes a wide variety of both chemical and mechanical sensory processes. Mechanical senses are understudied, but rapid progress has been made in the last decade, thanks in part to the discovery …
Metagenomic Study Of The Mesa: Detection Of Gemella Morbillorum And Association With Coronary Heart Disease, Kent D Taylor, Alexis C Wood, Jerome I Rotter, Xiuqing Guo, David M Herrington, W Craig Johnson, Wendy S Post, Russell P Tracy, Stephen S Rich, Shaista Malik
Metagenomic Study Of The Mesa: Detection Of Gemella Morbillorum And Association With Coronary Heart Disease, Kent D Taylor, Alexis C Wood, Jerome I Rotter, Xiuqing Guo, David M Herrington, W Craig Johnson, Wendy S Post, Russell P Tracy, Stephen S Rich, Shaista Malik
Faculty, Staff and Students Publications
BACKGROUND: Inflammation is a feature of coronary heart disease (CHD), but the role of proinflammatory microbial infection in CHD remains understudied.
METHODS AND RESULTS: CHD was defined in the MESA (Multi-Ethnic Study of Atherosclerosis) as myocardial infarction (251 participants), resuscitated arrest (2 participants), and CHD death (80 participants). We analyzed sequencing reads from 4421 MESA participants in the National Heart, Lung, and Blood Institute Trans-Omics for Precision Medicine program using the PathSeq workflow of the Genome Analysis Tool Kit and a 65-gigabase microbial reference. Paired reads aligning to 840 microbes were detected in >1% of participants. The association of the …