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Mittal S, Arenkiel BR, Lyons-Warren AM. Arcuate dopaminergic/GABAergic neurons project within the hypothalamus and to the median eminence. J Neurophysiol 2024; 132:943-952. [PMID: 39108212 PMCID: PMC11427037 DOI: 10.1152/jn.00086.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 07/01/2024] [Accepted: 07/31/2024] [Indexed: 09/12/2024] Open
Abstract
Cotransmission, meaning the release of multiple neurotransmitters from one synapse, allows for increased diversity of signaling in the brain. Dopamine (DA) and γ-aminobutyric acid (GABA) are known to coexpress in many regions such as the olfactory bulb and the ventral tegmental area. Tuberoinfundibular dopaminergic neurons (TIDA) in the arcuate nucleus of the hypothalamus (Arc) project to the median eminence (ME) and regulate prolactin release from the pituitary, and prior work suggests dopaminergic Arc neurons also cotransmit GABA. However, the extent of cotransmission, and the projection patterns of these neurons have not been fully revealed. Here, we used a genetic intersectional reporter expression approach to selectively label cells that express both tyrosine hydroxylase (TH) and vesicular GABA transporter (VGAT). Through this approach, we identified cells capable of both DA and GABA cotransmission in the Arc, periventricular (Pe), paraventricular (Pa), ventromedial, and the dorsolateral hypothalamic nuclei, in addition to a novel population in the caudate putamen. The highest density of labeled cells was in the Arc, 6.68% of DAPI-labeled cells at Bregma -2.06 mm, and in the Pe, 2.83% of DAPI-labeled cells at Bregma -1.94 mm. Next, we evaluated the projections of these DA/GABA cells by injecting an mCherry virus that fluoresces in DA/GABA cells. We observed a cotransmitting DA/GABA population, with projections within the Arc, and to the Pa and ME. These data suggest DA/GABA Arc neurons are involved in prolactin release as a subset of TIDA neurons. Further investigation will elucidate the interactions of dopamine and GABA in the hypothalamus.NEW & NOTEWORTHY Cotransmitting dopaminergic (DA) and γ-aminobutyric acid (GABA)ergic (DA/GABA) neurons contribute to the complexity of neural circuits. Using a new genetic technique, we characterized the locations, density, and projections of hypothalamic DA/GABA neurons. DA/GABA cells are mostly in the arcuate nucleus (Arc), from which they project locally within the arcuate, to the median eminence (ME), and to the paraventricular (Pa) nucleus. There is also a small and previously unreported group of DA/GABA cells in the caudate putamen.
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Affiliation(s)
- Somya Mittal
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States
- Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, Texas, United States
| | - Benjamin R Arenkiel
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States
- Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, Texas, United States
| | - Ariel M Lyons-Warren
- Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, Texas, United States
- Section of Pediatric Neurology and Developmental Neuroscience, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, United States
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2
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Machold R, Rudy B. Genetic approaches to elucidating cortical and hippocampal GABAergic interneuron diversity. Front Cell Neurosci 2024; 18:1414955. [PMID: 39113758 PMCID: PMC11303334 DOI: 10.3389/fncel.2024.1414955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 07/08/2024] [Indexed: 08/10/2024] Open
Abstract
GABAergic interneurons (INs) in the mammalian forebrain represent a diverse population of cells that provide specialized forms of local inhibition to regulate neural circuit activity. Over the last few decades, the development of a palette of genetic tools along with the generation of single-cell transcriptomic data has begun to reveal the molecular basis of IN diversity, thereby providing deep insights into how different IN subtypes function in the forebrain. In this review, we outline the emerging picture of cortical and hippocampal IN speciation as defined by transcriptomics and developmental origin and summarize the genetic strategies that have been utilized to target specific IN subtypes, along with the technical considerations inherent to each approach. Collectively, these methods have greatly facilitated our understanding of how IN subtypes regulate forebrain circuitry via cell type and compartment-specific inhibition and thus have illuminated a path toward potential therapeutic interventions for a variety of neurocognitive disorders.
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Affiliation(s)
- Robert Machold
- Neuroscience Institute, New York University Grossman School of Medicine, New York, NY, United States
| | - Bernardo Rudy
- Neuroscience Institute, New York University Grossman School of Medicine, New York, NY, United States
- Department of Neuroscience and Physiology, New York University Grossman School of Medicine, New York, NY, United States
- Department of Anesthesiology, Perioperative Care and Pain Medicine, New York University Grossman School of Medicine, New York, NY, United States
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3
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Lanza DG, Mao J, Lorenzo I, Liao L, Seavitt JR, Ljungberg MC, Simpson EM, DeMayo FJ, Heaney JD. An oocyte-specific Cas9-expressing mouse for germline CRISPR/Cas9-mediated genome editing. Genesis 2024; 62:e23589. [PMID: 38523431 PMCID: PMC10987075 DOI: 10.1002/dvg.23589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 03/26/2024]
Abstract
Cas9 transgenes can be employed for genome editing in mouse zygotes. However, using transgenic instead of exogenous Cas9 to produce gene-edited animals creates unique issues including ill-defined transgene integration sites, the potential for prolonged Cas9 expression in transgenic embryos, and increased genotyping burden. To overcome these issues, we generated mice harboring an oocyte-specific, Gdf9 promoter driven, Cas9 transgene (Gdf9-Cas9) targeted as a single copy into the Hprt1 locus. The X-linked Hprt1 locus was selected because it is a defined integration site that does not influence transgene expression, and breeding of transgenic males generates obligate transgenic females to serve as embryo donors. Using microinjections and electroporation to introduce sgRNAs into zygotes derived from transgenic dams, we demonstrate that Gdf9-Cas9 mediates genome editing as efficiently as exogenous Cas9 at several loci. We show that genome editing efficiency is independent of transgene inheritance, verifying that maternally derived Cas9 facilitates genome editing. We also show that paternal inheritance of Gdf9-Cas9 does not mediate genome editing, confirming that Gdf9-Cas9 is not expressed in embryos. Finally, we demonstrate that off-target mutagenesis is equally rare when using transgenic or exogenous Cas9. Together, these results show that the Gdf9-Cas9 transgene is a viable alternative to exogenous Cas9.
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Affiliation(s)
- Denise G. Lanza
- Department of Molecular and Human Genetics, Baylor College of Medicine Houston, TX, USA 77030
| | - Jianqiang Mao
- Department of Molecular & Cellular Biology, Baylor College of Medicine Houston, TX, USA 77030
| | - Isabel Lorenzo
- Department of Molecular and Human Genetics, Baylor College of Medicine Houston, TX, USA 77030
| | - Lan Liao
- Department of Molecular & Cellular Biology, Baylor College of Medicine Houston, TX, USA 77030
| | - John R. Seavitt
- Department of Molecular and Human Genetics, Baylor College of Medicine Houston, TX, USA 77030
- Present address: The Jackson Laboratory 600 Main St., Bar Harbor, Maine, ME, USA 04609
| | - M. Cecilia Ljungberg
- Department of Pediatrics – Neurology, Baylor College of Medicine Houston, TX, USA 77030
- Duncan Neurological Research Institute, Texas Children’s Hospital Houston, TX, USA 77030
| | - Elizabeth M. Simpson
- Centre for Molecular Medicine and Therapeutics at BC Children’s Hospital Department of Medical Genetics, The University of British Columbia Vancouver, British Columbia V5Z 4H4, Canada
| | - Francesco J. DeMayo
- Reproductive and Developmental Biology Laboratory National Institute of Environmental Health Sciences Research Triangle Park, NC, USA 27709
| | - Jason D. Heaney
- Department of Molecular and Human Genetics, Baylor College of Medicine Houston, TX, USA 77030
- Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine Houston, TX, USA 77030
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4
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Hutchison V, Lynch A, Gutierrez-Gamez AM, Chen J. Inducible tricolor reporter mouse for parallel imaging of lysosomes, mitochondria, and microtubules. J Cell Biol 2024; 223:e202305086. [PMID: 37917008 PMCID: PMC10621751 DOI: 10.1083/jcb.202305086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 09/06/2023] [Accepted: 10/13/2023] [Indexed: 11/03/2023] Open
Abstract
Cell type-specific use of the same DNA blueprint generates diverse cell types. Such diversity must also be executed via differential deployment of the same subcellular machinery. However, our understanding of the size, distribution, and dynamics of subcellular machinery in native tissues and their connection to cellular diversity remains limited. We generate and characterize an inducible tricolor reporter mouse, dubbed "Kaleidoscope," for simultaneous imaging of lysosomes, mitochondria, and microtubules in any cell type and at a single-cell resolution. The expected subcellular compartments are labeled in culture and in tissues with no impact on cellular and organismal viability. Quantitative and live imaging of the tricolor reporter captures cell type-specific organelle features and kinetics in the lung, as well as their changes after Sendai virus infection. Yap/Taz mutant lung epithelial cells undergo accelerated lamellar body maturation, a subcellular manifestation of their molecular defects. A comprehensive toolbox of reporters for all subcellular structures is expected to transform our understanding of cell biology in tissues.
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Affiliation(s)
- Vera Hutchison
- Department of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Graduate Program in Developmental Biology, Baylor College of Medicine, Houston, TX, USA
| | - Anne Lynch
- Department of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Graduate Program in Developmental Biology, Baylor College of Medicine, Houston, TX, USA
| | | | - Jichao Chen
- Department of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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5
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Lusk S, Ward CS, Chang A, Twitchell-Heyne A, Fattig S, Allen G, Jankowsky J, Ray R. An automated respiratory data pipeline for waveform characteristic analysis. J Physiol 2023; 601:4767-4806. [PMID: 37786382 PMCID: PMC10841337 DOI: 10.1113/jp284363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 08/11/2023] [Indexed: 10/04/2023] Open
Abstract
Comprehensive and accurate analysis of respiratory and metabolic data is crucial to modelling congenital, pathogenic and degenerative diseases converging on autonomic control failure. A lack of tools for high-throughput analysis of respiratory datasets remains a major challenge. We present Breathe Easy, a novel open-source pipeline for processing raw recordings and associated metadata into operative outcomes, publication-worthy graphs and robust statistical analyses including QQ and residual plots for assumption queries and data transformations. This pipeline uses a facile graphical user interface for uploading data files, setting waveform feature thresholds and defining experimental variables. Breathe Easy was validated against manual selection by experts, which represents the current standard in the field. We demonstrate Breathe Easy's utility by examining a 2-year longitudinal study of an Alzheimer's disease mouse model to assess contributions of forebrain pathology in disordered breathing. Whole body plethysmography has become an important experimental outcome measure for a variety of diseases with primary and secondary respiratory indications. Respiratory dysfunction, while not an initial symptom in many of these disorders, often drives disability or death in patient outcomes. Breathe Easy provides an open-source respiratory analysis tool for all respiratory datasets and represents a necessary improvement upon current analytical methods in the field. KEY POINTS: Respiratory dysfunction is a common endpoint for disability and mortality in many disorders throughout life. Whole body plethysmography in rodents represents a high face-value method for measuring respiratory outcomes in rodent models of these diseases and disorders. Analysis of key respiratory variables remains hindered by manual annotation and analysis that leads to low throughput results that often exclude a majority of the recorded data. Here we present a software suite, Breathe Easy, that automates the process of data selection from raw recordings derived from plethysmography experiments and the analysis of these data into operative outcomes and publication-worthy graphs with statistics. We validate Breathe Easy with a terabyte-scale Alzheimer's dataset that examines the effects of forebrain pathology on respiratory function over 2 years of degeneration.
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Affiliation(s)
- Savannah Lusk
- Department of Neuroscience, Baylor College of Medicine, Houston, TX 77030, USA
| | - Christopher S. Ward
- Department of Integrative Physiology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Andersen Chang
- Department of Neuroscience, Baylor College of Medicine, Houston, TX 77030, USA
| | | | - Shaun Fattig
- Department of Neuroscience, Baylor College of Medicine, Houston, TX 77030, USA
| | - Genevera Allen
- Departments of Electrical and Computer Engineering, Statistics, and Computer Science, Rice University, Houston, TX 77030, USA
- Jan and Dan Duncan Neurological Research Institute, Texas Children’s Hospital, Houston, TX 77030, USA
| | - Joanna Jankowsky
- Department of Neuroscience, Baylor College of Medicine, Houston, TX 77030, USA
- Departments of Neurology, Neurosurgery, and Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Russell Ray
- Department of Neuroscience, Baylor College of Medicine, Houston, TX 77030, USA
- McNair Medical Institute, Houston, TX 77030, USA
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6
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McKinney A, Hu M, Hoskins A, Mohammadyar A, Naeem N, Jing J, Patel SS, Sheth BR, Jiang X. Cellular composition and circuit organization of the locus coeruleus of adult mice. eLife 2023; 12:e80100. [PMID: 36734517 PMCID: PMC9934863 DOI: 10.7554/elife.80100] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 02/01/2023] [Indexed: 02/04/2023] Open
Abstract
The locus coeruleus (LC) houses the vast majority of noradrenergic neurons in the brain and regulates many fundamental functions, including fight and flight response, attention control, and sleep/wake cycles. While efferent projections of the LC have been extensively investigated, little is known about its local circuit organization. Here, we performed large-scale multipatch recordings of noradrenergic neurons in adult mouse LC to profile their morpho-electric properties while simultaneously examining their interactions. LC noradrenergic neurons are diverse and could be classified into two major morpho-electric types. While fast excitatory synaptic transmission among LC noradrenergic neurons was not observed in our preparation, these mature LC neurons connected via gap junction at a rate similar to their early developmental stage and comparable to other brain regions. Most electrical connections form between dendrites and are restricted to narrowly spaced pairs or small clusters of neurons of the same type. In addition, more than two electrically coupled cell pairs were often identified across a cohort of neurons from individual multicell recording sets that followed a chain-like organizational pattern. The assembly of LC noradrenergic neurons thus follows a spatial and cell-type-specific wiring principle that may be imposed by a unique chain-like rule.
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Affiliation(s)
- Andrew McKinney
- Neuroscience Graduate Program, Baylor College of MedicineHoustonUnited States
- Department of Neuroscience, Baylor College of MedicineHoustonUnited States
- Jan and Dan Duncan Neurological Research Institute at Texas Children’s HospitalHoustonUnited States
| | - Ming Hu
- Department of Neuroscience, Baylor College of MedicineHoustonUnited States
- Jan and Dan Duncan Neurological Research Institute at Texas Children’s HospitalHoustonUnited States
| | | | | | | | - Junzhan Jing
- Department of Neuroscience, Baylor College of MedicineHoustonUnited States
- Jan and Dan Duncan Neurological Research Institute at Texas Children’s HospitalHoustonUnited States
| | - Saumil S Patel
- Department of Neuroscience, Baylor College of MedicineHoustonUnited States
| | - Bhavin R Sheth
- Department of Electrical and Computer Engineering, University of HoustonHoustonUnited States
- Center for NeuroEngineering and Cognitive Science, University of HoustonHoustonUnited States
| | - Xiaolong Jiang
- Neuroscience Graduate Program, Baylor College of MedicineHoustonUnited States
- Department of Neuroscience, Baylor College of MedicineHoustonUnited States
- Jan and Dan Duncan Neurological Research Institute at Texas Children’s HospitalHoustonUnited States
- Department of Ophthalmology, Baylor College of MedicineHoustonUnited States
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7
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Ncube D, Tallafuss A, Serafin J, Bruckner J, Farnsworth DR, Miller AC, Eisen JS, Washbourne P. A conserved transcriptional fingerprint of multi-neurotransmitter neurons necessary for social behavior. BMC Genomics 2022; 23:675. [PMID: 36175871 PMCID: PMC9523972 DOI: 10.1186/s12864-022-08879-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 09/02/2022] [Indexed: 11/11/2022] Open
Abstract
Background An essential determinant of a neuron’s functionality is its neurotransmitter phenotype. We previously identified a defined subpopulation of cholinergic neurons required for social orienting behavior in zebrafish. Results We transcriptionally profiled these neurons and discovered that they are capable of synthesizing both acetylcholine and GABA. We also established a constellation of transcription factors and neurotransmitter markers that can be used as a “transcriptomic fingerprint” to recognize a homologous neuronal population in another vertebrate. Conclusion Our results suggest that this transcriptomic fingerprint and the cholinergic-GABAergic neuronal subtype that it defines are evolutionarily conserved. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-022-08879-w.
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Affiliation(s)
- Denver Ncube
- Institute of Neuroscience, 1254 University of Oregon, Eugene, OR, 97403, USA
| | - Alexandra Tallafuss
- Institute of Neuroscience, 1254 University of Oregon, Eugene, OR, 97403, USA
| | - Jen Serafin
- Institute of Neuroscience, 1254 University of Oregon, Eugene, OR, 97403, USA
| | - Joseph Bruckner
- Institute of Neuroscience, 1254 University of Oregon, Eugene, OR, 97403, USA
| | - Dylan R Farnsworth
- Institute of Neuroscience, 1254 University of Oregon, Eugene, OR, 97403, USA
| | - Adam C Miller
- Institute of Neuroscience, 1254 University of Oregon, Eugene, OR, 97403, USA
| | - Judith S Eisen
- Institute of Neuroscience, 1254 University of Oregon, Eugene, OR, 97403, USA
| | - Philip Washbourne
- Institute of Neuroscience, 1254 University of Oregon, Eugene, OR, 97403, USA.
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8
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Hunt PJ, Kochukov M, Pekarek BT, Belfort BD, Romero JM, Swanson JL, Arenkiel BR. Co-transmitting neurons in the lateral septal nucleus exhibit features of neurotransmitter switching. IBRO Neurosci Rep 2022; 12:390-398. [PMID: 35601692 PMCID: PMC9121281 DOI: 10.1016/j.ibneur.2022.05.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 05/09/2022] [Indexed: 01/07/2023] Open
Abstract
The lateral septal nucleus (LSN) is a highly interconnected region of the central brain whose activity regulates widespread circuitry. As such, the mechanisms that govern neuronal activity within the LSN have far-reaching implications on numerous brain-wide nuclei, circuits, and behaviors. We found that GABAergic neurons within the LSN express markers that mediate the release of acetylcholine (ACh). Moreover, we show that these vGATLSN neurons release both GABA and ACh onto local glutamatergic LSN neurons. Using both short-term and long-term neuronal labeling techniques we observed expression of the cholinergic neuron marker Choline Acetyltransferase (ChAT) in vGATLSN neurons. These findings provide evidence of cholinergic neurotransmission from vGATLSN neurons, and provide an impetus to examine dynamic co-neurotransmission changes as a potential mechanism that contributes to neuronal and circuit-wide plasticity within the LSN.
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Affiliation(s)
- Patrick J. Hunt
- Genetics and Genomics Program, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA
- Medical Scientist Training Program, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA
- Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital, 1250 Moursund Street, Houston, TX 77030, USA
| | - Mikhail Kochukov
- Department of Molecular and Human Genetics, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA
- Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital, 1250 Moursund Street, Houston, TX 77030, USA
| | - Brandon T. Pekarek
- Genetics and Genomics Program, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA
- Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital, 1250 Moursund Street, Houston, TX 77030, USA
| | - Benjamin D.W. Belfort
- Genetics and Genomics Program, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA
- Medical Scientist Training Program, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA
- Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital, 1250 Moursund Street, Houston, TX 77030, USA
| | - Juan M. Romero
- Medical Scientist Training Program, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA
- Neuroscience Graduate Program, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA
- Department of Neuroscience, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA
- Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital, 1250 Moursund Street, Houston, TX 77030, USA
| | - Jessica L. Swanson
- Genetics and Genomics Program, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA
- Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital, 1250 Moursund Street, Houston, TX 77030, USA
| | - Benjamin R. Arenkiel
- Department of Molecular and Human Genetics, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA
- Department of Neuroscience, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, USA
- Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital, 1250 Moursund Street, Houston, TX 77030, USA
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