Neurosciences Commons^™

Psychometric Properties Of The Revised Children’S Anxiety And Depression Scale (Rcads) For Autistic Youth Without Co-Occurring Intellectual Disability, Nasim Khalfe, Amy R Goetz, Erika S Trent, Andrew G Guzick, Orri Smarason, Minjee Kook, Sean Olsen, Ana C Ramirez, Saira A Weinzimmer, Leandra Berry, Sophie C Schneider, Wayne K Goodman, Eric A Storch

Faculty, Staff and Students Publications

Autistic youth often present with comorbid anxiety and depression yet there is a dearth of validated assessment tools. The Revised Children’s Anxiety and Depression Scale (RCADS) assesses internalizing symptoms but there is little psychometric data in autistic youth. Treatment-seeking autistic youth with anxiety or obsessive-compulsive symptoms (N = 74; age 6–14 years), and caregivers, were administered the RCADS-Parent, RCADS-Child, and assessments of internalizing, externalizing symptoms and social impairment indicative of autism. RCADS-Parent and RCADS-Child total anxiety scores demonstrated excellent internal consistency, and the six subscales demonstrated acceptable-to-good internal consistency. The RCADS-Child and Parent total anxiety scores were weakly correlated, …

Twelve-Month Psychosocial Outcomes Of Continuous Glucose Monitoring With Behavioural Support In Parents Of Young Children With Type 1 Diabetes, Persis V Commissariat, Linda A Dimeglio, Lauren G Kanapka, Lori M Laffel, Kellee M Miller, Barbara J Anderson, Marisa E Hilliard

Faculty, Staff and Students Publications

AIM: Managing type 1 diabetes in young children can cause significant stress for parents. Continuous glucose monitoring (CGM) may reduce parental burden. The Strategies to Enhance CGM Use in Early Childhood (SENCE) trial randomized parents of children (ages 2 to <8 >years) with type 1 diabetes to CGM with family behavioural intervention (CGM + FBI), CGM alone (Standard-CGM) or blood glucose monitoring for 26 weeks before receiving CGM + FBI (BGM-Crossover). This report assesses changes in psychosocial outcomes for all groups over 52 weeks.

METHODS: CGM + FBI (n = 45), Standard-CGM (n = 42) and BGM-Crossover (n = 44) participants …

Use Of Video Alone For Differentiation Of Epileptic Seizures From Non-Epileptic Spells: A Systematic Review And Meta-Analysis, Cemal Karakas, Liam D Ferreira, Zulfi Haneef

Faculty, Staff and Students Publications

Introduction: Review of videos (without electroencephalography) to differentiate epileptic seizures (ES) from non-epileptic spells (NES) may be helpful where epilepsy monitoring is not feasible. Previous studies of video-based diagnosis have suffered from variable accuracy, sensitivity, and specificity.

Methods: We systematically reviewed relevant literature in PubMed, Embase, and Web of Science from inception to September 2022, identifying articles that reported on the video-based diagnosis of ES and NES. In primary analysis, for each study, the most expert group was chosen when different groups of reviewers classified the videos (e.g., epilepsy specialists and general neurologists). In secondary analysis, we compared the diagnostic …

Positron Emission Tomography And Magnetic Resonance Imaging Methods And Datasets Within The Dominantly Inherited Alzheimer Network (Dian), Nicole S. Mckay, Brian A. Gordon, Russ C. Hornbeck, Aylin Dincer, Shaney Flores, Sarah J. Keefe, Nelly Joseph-Mathurin, Clifford R. Jack, Robert Koeppe, Peter R. Millar, Beau M. Ances, Charles D. Chen, Alisha Daniels, Diana A. Hobbs, Kelley Jackson, Deborah Koudelis, Parinaz Massoumzadeh, Austin Mccullough, Michael L. Nickels, Farzaneh Rahmani, Laura Swisher, Qing Wang, Ricardo F. Allegri, Sarah B. Berman, Adam M. Brickman, William S. Brooks, David M. Cash, Jasmeer P. Chhatwal, Gregory S. Day, Martin R. Farlow, Christian La Fougère, Nick C. Fox, Michael Fulham, Bernardino Ghetti, Neill Graff-Radford, Takeshi Ikeuchi, William Klunk, Jae-Hong Lee, Johannes Levin, Ralph Martins, Colin L. Masters, Jonathan Mcconathy, Hiroshi Mori, James M. Noble, Gerald Reischl, Christopher Rowe, Stephen Salloway, Raquel Sanchez-Valle, Peter R. Schofield, Hiroyuki Shimada, Mikio Shoji, Yi Su, Kazushi Suzuki, Jonathan Vöglein, Igor Yakushev, Carlos Cruchaga, Jason Hassenstab, Celeste Karch, Eric Mcdade, Richard J. Perrin, Chengjie Xiong, John C. Morris, Randall J. Bateman, Tammie L. S. Benzinger, Dominantly Inherited Alzheimer Network

Research outputs 2022 to 2026

The Dominantly Inherited Alzheimer Network (DIAN) is an international collaboration studying autosomal dominant Alzheimer disease (ADAD). ADAD arises from mutations occurring in three genes. Offspring from ADAD families have a 50% chance of inheriting their familial mutation, so non-carrier siblings can be recruited for comparisons in case–control studies. The age of onset in ADAD is highly predictable within families, allowing researchers to estimate an individual’s point in the disease trajectory. These characteristics allow candidate AD biomarker measurements to be reliably mapped during the preclinical phase. Although ADAD represents a small proportion of AD cases, understanding neuroimaging-based changes that occur during …

Contrast Detection Is Enhanced By Deterministic, High-Frequency Transcranial Alternating Current Stimulation With Triangle And Sine Waveform, Weronika Potok, Onno Van Der Groen, Sahana Sivachelvam, Marc Bächinger, Flavio Fröhlich, Laszlo B. Kish, Nicole Wenderoth

Research outputs 2022 to 2026

Stochastic resonance (SR) describes a phenomenon where an additive noise (stochastic carrier-wave) enhances the signal transmission in a nonlinear system. In the nervous system, nonlinear properties are present from the level of single ion channels all the way to perception and appear to support the emergence of SR. For example, SR has been repeatedly demonstrated for visual detection tasks, also by adding noise directly to cortical areas via transcranial random noise stimulation (tRNS). When dealing with nonlinear physical systems, it has been suggested that resonance can be induced not only by adding stochastic signals (i.e., noise) but also by adding …

C9orf72 Poly(Pr) Mediated Neurodegeneration Is Associated With Nucleolar Stress, M. E. Cicardi, J. H. Hallgren, D. Mawrie, K. Krishnamurthy, S. S. Markandaiah, A. T. Nelson, V. Kankate, E. N. Anderson, P. Pasinelli, U. B. Pandey, C. M. Eischen, D. Trotti

Farber Institute for Neuroscience Faculty Papers

The ALS/FTD-linked intronic hexanucleotide repeat expansion in the C9orf72 gene is aberrantly translated in the sense and antisense directions into dipeptide repeat proteins, among which poly proline-arginine (PR) displays the most aggressive neurotoxicity in-vitro and in-vivo. PR partitions to the nucleus when heterologously expressed in neurons and other cell types. We show that by lessening the nuclear accumulation of PR, we can drastically reduce its neurotoxicity. PR strongly accumulates in the nucleolus, a nuclear structure critical in regulating the cell stress response. We determined that, in neurons, PR caused nucleolar stress and increased levels of the transcription factor p53. …

Clinical Evidence Of Human Pathogens Implicated In Alzheimer’S Disease Pathology And The Therapeutic Efficacy Of Antimicrobials: An Overview, Celso S G Catumbela, Vijayasree V Giridharan, Tatiana Barichello, Rodrigo Morales

Faculty, Staff and Student Publications

A wealth of pre-clinical reports and data derived from human subjects and brain autopsies suggest that microbial infections are relevant to Alzheimer's disease (AD). This has inspired the hypothesis that microbial infections increase the risk or even trigger the onset of AD. Multiple models have been developed to explain the increase in pathogenic microbes in AD patients. Although this hypothesis is well accepted in the field, it is not yet clear whether microbial neuroinvasion is a cause of AD or a consequence of the pathological changes experienced by the demented brain. Along the same line, the gut microbiome has also …

Correlative Cryo-Fib And Cryo-Et Of Dendritic Spines And Synaptic Connections, Erik D Anderson, Christopher A Cronkite, Kimberley F Tolias, Steven J Ludtke

Faculty, Staff and Students Publications

No abstract provided.

Clinical And Functional Correlates Of Parkinsonism In A Population-Based Sample Of Individuals Aged 75 +: The Pietà Study, Thiago Cardoso Vale, Francisco Eduardo Costa Cardoso, Danilo Jorge Da Silva, Elisa De Paula Franca Resende, Débora Palma Maia, Mauro César Quintão Cunningham, Henrique Cerqueira Guimarães, João Carlos Barbosa Machado, Antônio Lúcio Teixeira, Paulo Caramelli, Maira Tonidandel Barbosa

Faculty, Staff and Student Publications

BACKGROUND: Parkinsonism is strongly associated with ageing, and many studies have suggested that parkinsonian signs may affect up to half of older adults and is associated with a wide range of adverse health outcomes. We compared clinical and functional characteristics of oldest-old community-dwelling individuals with parkinsonism (parkinsonian group [PG]) to individuals without parkinsonism (non-parkinsonian group [NPG].

METHODS: The Pietà study is a population-based study conducted in Caeté, southeast Brazil, involving 607 individuals aged 75 + years submitted to an extensive clinical evaluation. A subset of 65 PG individuals (61.5% women, median age of 82 years) was compared to 542 NPG …

Intraoperative Cortical Localization Of Music And Language Reveals Signatures Of Structural Complexity In Posterior Temporal Cortex, Meredith J Mccarty, Elliot Murphy, Xavier Scherschligt, Oscar Woolnough, Cale W Morse, Kathryn Snyder, Bradford Z Mahon, Nitin Tandon

Faculty, Staff and Student Publications

Language and music involve the productive combination of basic units into structures. It remains unclear whether brain regions sensitive to linguistic and musical structure are co-localized. We report an intraoperative awake craniotomy in which a left-hemispheric language-dominant professional musician underwent cortical stimulation mapping (CSM) and electrocorticography of music and language perception and production during repetition tasks. Musical sequences were melodic or amelodic, and differed in algorithmic compressibility (Lempel-Ziv complexity). Auditory recordings of sentences differed in syntactic complexity (single vs. multiple phrasal embeddings). CSM of posterior superior temporal gyrus (pSTG) disrupted music perception and production, along with speech production. pSTG and …

Memory Rescue And Learning In Synaptic Impaired Neuronal Circuits, Kwan Tung Li, Daoyun Ji, Changsong Zhou

Faculty, Staff and Students Publications

Neuronal impairment is a characteristic of Alzheimer's disease (AD), but its effect on neural activity dynamics underlying memory deficits is unclear. Here, we studied the effects of synaptic impairment on neural activities associated with memory recall, memory rescue, and learning a new memory, in an integrate-and-fire neuronal network. Our results showed that reducing connectivity decreases the neuronal synchronization of memory neurons and impairs memory recall performance. Although, slow-gamma stimulation rescued memory recall and slow-gamma oscillations, the rescue caused a side effect of activating mixed memories. During the learning of a new memory, reducing connectivity caused impairment in storing the new …

Satisfaction With Participation In The First Steps Behavioral Intervention: Experiences Of Parents Of Young Children With Newly Diagnosed Type 1 Diabetes, Marissa N Baudino, Hailey Inverso, Christine Wang, Carrie Tully, Wendy Levy, Lauren Clary, Katherine A Gallagher, Maureen Monaghan, Randi Streisand, Marisa E Hilliard

Faculty, Staff and Students Publications

OBJECTIVE: Parents of young children with new-onset type 1 diabetes (T1D) often experience significant distress and struggle with T1D management during a challenging developmental stage. The First STEPS (Study of Type 1 in Early childhood and Parenting Support) trial evaluated a stepped-care behavioral intervention comprising increasingly intensive intervention steps (peer parent coach, cognitive-behavioral counseling, consultations with diabetes educator and psychologist) based on need. The intervention improved parental depressive symptoms compared to usual care. Subsequently, we examined parent satisfaction with the intervention to guide potential implementation and refinement for future trials.

METHODS: Participants were 157 parents of young children newly diagnosed …

Metastatic Infiltration Of Nervous Tissue And Periosteal Nerve Sprouting In Multiple Myeloma-Induced Bone Pain In Mice And Human, Marta Diaz-Delcastillo, Oana Palasca, Tim T Nemler, Didde M Thygesen, Norma A Chávez-Saldaña, Juan A Vázquez-Mora, Lizeth Y Ponce Gomez, Lars Juhl Jensen, Holly Evans, Rebecca E Andrews, Aritri Mandal, David Neves, Patrick Mehlen, James P Caruso, Patrick M Dougherty, Theodore J Price, Andrew Chantry, Michelle A Lawson, Thomas L Andersen, Juan M Jimenez-Andrade, Anne-Marie Heegaard

Faculty, Staff and Student Publications

Multiple myeloma (MM) is a neoplasia of B plasma cells that often induces bone pain. However, the mechanisms underlying myeloma-induced bone pain (MIBP) are mostly unknown. Using a syngeneic MM mouse model, we show that periosteal nerve sprouting of calcitonin gene-related peptide (CGRP+) and growth associated protein 43 (GAP43+) fibers occurs concurrent to the onset of nociception and its blockade provides transient pain relief. MM patient samples also showed increased periosteal innervation. Mechanistically, we investigated MM induced gene expression changes in the dorsal root ganglia (DRG) innervating the MM-bearing bone of male mice and found alterations in pathways associated with …

Metastatic Infiltration Of Nervous Tissue And Periosteal Nerve Sprouting In Multiple Myeloma-Induced Bone Pain In Mice And Human, Marta Diaz-Delcastillo, Oana Palasca, Tim T Nemler, Didde M Thygesen, Norma A Chávez-Saldaña, Juan A Vázquez-Mora, Lizeth Y Ponce Gomez, Lars Juhl Jensen, Holly Evans, Rebecca E Andrews, Aritri Mandal, David Neves, Patrick Mehlen, James P Caruso, Patrick M Dougherty, Theodore J Price, Andrew Chantry, Michelle A Lawson, Thomas L Andersen, Juan M Jimenez-Andrade, Anne-Marie Heegaard

Faculty, Staff and Student Publications

Multiple myeloma (MM) is a neoplasia of B plasma cells that often induces bone pain. However, the mechanisms underlying myeloma-induced bone pain (MIBP) are mostly unknown. Using a syngeneic MM mouse model, we show that periosteal nerve sprouting of calcitonin gene-related peptide (CGRP+) and growth associated protein 43 (GAP43+) fibers occurs concurrent to the onset of nociception and its blockade provides transient pain relief. MM patient samples also showed increased periosteal innervation. Mechanistically, we investigated MM induced gene expression changes in the dorsal root ganglia (DRG) innervating the MM-bearing bone of male mice and found alterations in pathways associated with …

Βii-Spectrin Is Required For Synaptic Positioning During Retinal Development, Debalina Goswami-Sewell, Caitlin Bagnetto, Cesiah C Gomez, Joseph T Anderson, Akash Maheshwari, Elizabeth Zuniga-Sanchez

Faculty, Staff and Students Publications

Neural circuit assembly is a multistep process where synaptic partners are often born at distinct developmental stages, and yet they must find each other and form precise synaptic connections with one another. This developmental process often relies on late-born neurons extending their processes to the appropriate layer to find and make synaptic connections to their early-born targets. The molecular mechanism responsible for the integration of late-born neurons into an emerging neural circuit remains unclear. Here, we uncovered a new role for the cytoskeletal protein βII-spectrin in properly positioning presynaptic and postsynaptic neurons to the developing synaptic layer. Loss of βII-spectrin …

Psychosocial Impacts Of The Covid-19 Pandemic On Women With Spinal Cord Injury, Heather B Taylor, Rosemary B Hughes, Diana Gonzalez, Muna Bhattarai, Susan Robinson-Whelen

Faculty, Staff and Student Publications

This study represents the first known research addressing the impact of the COVID-19 pandemic on women with spinal cord injury (SCI) in the United States. Women in this population face unique barriers that put them at elevated risk for compromised quality of life, risk that was magnified by physical and social restrictions imposed during the pandemic. This qualitative study examined the perceptions of women with SCI and the effect of the pandemic on their lives. The predominantly White and relatively well-educated sample of 105 women with traumatic SCI was diverse in age, injury characteristics, and geographic representation. Recruited across the …

Anoctamin 4 Channel Currents Activate Glucose-Inhibited Neurons In The Mouse Ventromedial Hypothalamus During Hypoglycemia, Longlong Tu, Jonathan C Bean, Yang He, Hailan Liu, Meng Yu, Hesong Liu, Nan Zhang, Na Yin, Junying Han, Nikolas A Scarcelli, Kristine M Conde, Mengjie Wang, Yongxiang Li, Bing Feng, Peiyu Gao, Zhao-Lin Cai, Makoto Fukuda, Mingshan Xue, Qingchun Tong, Yongjie Yang, Lan Liao, Jianming Xu, Chunmei Wang, Yanlin He, Yong Xu

Faculty, Staff and Student Publications

Glucose is the basic fuel essential for maintenance of viability and functionality of all cells. However, some neurons - namely, glucose-inhibited (GI) neurons - paradoxically increase their firing activity in low-glucose conditions and decrease that activity in high-glucose conditions. The ionic mechanisms mediating electric responses of GI neurons to glucose fluctuations remain unclear. Here, we showed that currents mediated by the anoctamin 4 (Ano4) channel are only detected in GI neurons in the ventromedial hypothalamic nucleus (VMH) and are functionally required for their activation in response to low glucose. Genetic disruption of the Ano4 gene in VMH neurons reduced blood …

The Cerebellum Contributes To Generalized Seizures By Altering Activity In The Ventral Posteromedial Nucleus, Jaclyn Beckinghausen, Joshua Ortiz-Guzman, Tao Lin, Benjamin Bachman, Luis E Salazar Leon, Yu Liu, Detlef H Heck, Benjamin R Arenkiel, Roy V Sillitoe

Duncan NRI Faculty and Staff Publications

Thalamo-cortical networks are central to seizures, yet it is unclear how these circuits initiate seizures. We test whether a facial region of the thalamus, the ventral posteromedial nucleus (VPM), is a source of generalized, convulsive motor seizures and if convergent VPM input drives the behavior. To address this question, we devise an in vivo optogenetic mouse model to elicit convulsive motor seizures by driving these inputs and perform single-unit recordings during awake, convulsive seizures to define the local activity of thalamic neurons before, during, and after seizure onset. We find dynamic activity with biphasic properties, raising the possibility that heterogenous …

Using Predictive Validity To Compare Associations Between Brain Damage And Behavior, John F Magnotti, Jaclyn S Patterson, Tatiana T Schnur

Faculty, Staff and Student Publications

Lesion-behavior mapping (LBM) provides a statistical map of the association between voxel-wise brain damage and individual differences in behavior. To understand whether two behaviors are mediated by damage to distinct regions, researchers often compare LBM weight outputs by either the Overlap method or the Correlation method. However, these methods lack statistical criteria to determine whether two LBM are distinct versus the same and are disconnected from a major goal of LBMs: predicting behavior from brain damage. Without such criteria, researchers may draw conclusions from numeric differences between LBMs that are irrelevant to predicting behavior. We developed and validated a predictive …

Changes In Outcomes And Factors Associated With Survival In Melanoma Patients With Brain Metastases, Merve Hasanov, Denái R Milton, Alicia Bea Davies, Elizabeth Sirmans, Chantal Saberian, Eliza L Posada, Sylvia Opusunju, Jeffrey E Gershenwald, Carlos A Torres-Cabala, Elizabeth M Burton, Rivka R Colen, Jason T Huse, Isabella C Glitza Oliva, Caroline Chung, Mary Frances Mcaleer, Susan L Mcgovern, Debra N Yeboa, Betty Y S Kim, Sujit S Prabhu, Ian E Mccutcheon, Jeffrey S Weinberg, Frederick F Lang, Hussein A Tawbi, Jing Li, Lauren E Haydu, Michael A Davies, Sherise D Ferguson

Faculty, Staff and Student Publications

BACKGROUND: Treatment options for patients with melanoma brain metastasis (MBM) have changed significantly in the last decade. Few studies have evaluated changes in outcomes and factors associated with survival in MBM patients over time. The aim of this study is to evaluate changes in clinical features and overall survival (OS) for MBM patients.

METHODS: Patients diagnosed with MBMs from 1/1/2009 to 12/31/2013 (Prior Era; PE) and 1/1/2014 to 12/31/2018 (Current Era; CE) at The University of Texas MD Anderson Cancer Center were included in this retrospective analysis. The primary outcome measure was OS. Log-rank test assessed differences between groups; multivariable …