Author
Biju Viswanath
National Institute of Mental Health and NeurosciencesORCID 0000-0002-7317-1789Unclaimed ORCID profile · follow to get notified of new preprints
Biology Disciplines
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2018-2026 · peak 3/yrCo-Author Collaboration Network
10 top collaborators · 45 mutual co-author links18 papers
Recent·Most cited
- Genetic & Genomic MedicinemedRxivPreprintDOI 10.64898/2026.09.30.26364416
- Genetic & Genomic MedicinemedRxivPreprint
Intermediate repeat alleles at polyglutamine repeat loci in the Indian population
Meghana Janardhanan, Akshayaa Ganesh, Sowmya Devatha Venkatesh…·Meera Purushottam
The paper examines the prevalence of intermediate CAG repeat alleles in specific genes among different populations and identifies their association with neuromotor symptoms.
- Genetic & Genomic MedicinemedRxivPreprint
Allelic Diversity, de novo CAG Expansions, and Intergenerational Instability at the HTT Locus in a clinical sample of Huntingtons Disease from India
Nikhil Ratna, Sowmya Devatha Venkatesh, Swathi Pasupulati…·Meera Purushottam
The paper analyzes allelic diversity and CAG repeat instability in HD patients from India, finding a strong inverse correlation between repeat length and age at onset, and reporting de novo expansions.
DOI 10.1101/2025.03.03.21260193 - NeuroscienceGliaPeer-reviewed
The Fragile X Messenger Ribonucleoprotein 1 regulates the morphology and maturation of human and rat oligodendrocytes
Vidya Ramesh, Eleni Tsoukala, Ioanna Kougianou…·Lida Zoupi
This study investigates the role of FMRP in oligodendrocyte maturation and myelination in human and rat models, finding shared defects in morphology and function.
- Genetic & Genomic MedicinemedRxivPreprint
A cross ancestry genetic study of psychiatric disorders from India
Bharath Holla, Jayant Mahadevan, Suhas Ganesh…·Biju Viswanath
This study evaluates the predictive accuracy of polygenic scores for psychiatric disorders in an Indian population using European GWAS data, finding moderate-to-high accuracy for bipolar disorder but lower for OCD and externalizing traits.
DOI 10.1101/2024.04.25.24306377 - NeurosciencebioRxivPreprint
Proteomic analysis reveals APOE isoform-specific regulation of ribosomes in neural precursor cells
Mallavarapu R. Srividya, Pradip Paul, Sarayu Ramakrishna…·Reeteka Sud
The paper identifies APOE4 isoform-specific proteomic changes in neural precursor cells, revealing effects on RNA processing and cytoskeleton organization.
2 citations - Genetic & Genomic MedicinemedRxivPreprint
Missense variants in PLA2G6 contribute to a spectrum of clinical syndromes and provide pharmacogenomic correlates
Meghana Janardhanan, Padmanabhan Anbhazagan, Biju Viswanath…·Meera Purushottam
The paper identifies deleterious PLA2G6 variants in individuals with severe mental illness and suggests pharmacogenomic implications for antipsychotic drug binding.
DOI 10.1101/2023.04.06.23288108 - Genetic & Genomic MedicineScientific ReportsPeer-reviewed
Whole Exome Sequencing in dense families suggests genetic pleiotropy amongst Mendelian and complex neuropsychiatric syndromes
Suhas Ganesh, Alekhya Vemula, Samsiddhi Bhattacharjee…·Meera Purushottam
This study uses whole exome sequencing in families with multiple affected individuals to identify rare variants in genes associated with both Mendelian and complex neuropsychiatric syndromes.
6 citations - NeuroscienceNeuroImagePeer-reviewed
Sample size requirement for achieving multisite harmonization using structural brain MRI features
Pravesh Parekh, Gaurav Vivek Bhalerao, Biju Viswanath…·Ganesan Venkatasubramanian
This study determines the minimum sample size needed for multisite harmonization using structural brain MRI features and shows how sample size requirements increase with site variability.
17 citations - NeurosciencebioRxivPreprint
A replication study on key neurodevelopmental pathways affected by valproate treatment ofneural precursor cells
Salil Kalarikkal Sukumaran, Mallavarapu R. Srividya, Shruti Iyer…·Reeteka Sud
This study replicates and extends findings on valproate's effects on neural precursor cells by identifying common differentially expressed genes and enriched signaling pathways.
DOI 10.1101/2022.11.21.517445 - Genetic & Genomic MedicineScientific ReportsPeer-reviewed
Analysis of whole exome sequencing in severe mental illness hints at selection of brain development and immune related genes
Jayant Mahadevan, Ajai Kumar Pathak, Alekhya Vemula…·Mayukh Mondal
The paper analyzes whole exome sequencing data from individuals with severe mental illness to identify genes under positive selection and their biological functions.
7 citations - Genetic & Genomic MedicinemedRxivPreprint
Genetics and Epigenetics of Aldehyde Dehydrogenase (ALDH2) in Alcohol Related Liver Disease
Bhagyalakshmi Mallapura Shankarappa, Jayant Mahadevan, Pratima Murthy…·Ashok V. Mysore
The paper examines the interaction between genetics and epigenetics at the ALDH2 locus in individuals with and without alcohol-related cirrhosis, finding lower DNA methylation in those with cirrhosis.
3 citations - NeurosciencebioRxivPreprint
Distribution of Huntington's disease Haplogroups in Indian population
Sowmya Devatha Venkatesh, Nikhil Ratna, Swathi Lakshmi P.…·Meera Purushottam
The paper examines haplogroups at the HTT locus in an Indian population, finding significant genotype frequency differences between HD cases and controls, with Haplogroup A being predominant.
DOI 10.1101/2020.12.31.424975 - NeuroscienceAustralian & New Zealand Journal of PsychiatryPeer-reviewed
Adverse childhood experiences in families with multiple members diagnosed to have psychiatric illnesses
Amala Someshwar, Bharath Holla, Preeti Pansari Agarwal…·Mahendra S. Rao
The paper examines the relationship between adverse childhood experiences (ACEs) and the age of onset of psychiatric diagnoses in individuals from families with multiple affected members.
18 citations - NeuroscienceHuman GenomicsPeer-reviewed
Identification and functional characterization of two novel mutations in KCNJ10 and PI4KB in SeSAME syndrome without electrolyte imbalance
Ravi Kumar Nadella, Anirudh S. Chellappa, Anand G. Subramaniam…·Ramakrishnan Kannan
The paper identifies two novel mutations in KCNJ10 and PI4KB in SeSAME syndrome patients and shows their functional impact on Kir4.1 channel activity.
11 citations - NeurosciencebioRxivPreprint
Studying cellular functions in bipolar disorder: Are there specific predictors of lithium response?
Pradip Paul, Shruti Iyer, Ravi Kumar Nadella…·Biju Viswanath
This study investigates cellular phenotypes in bipolar disorder patients with and without lithium response using NPCs and LCLs, finding differences in mitochondrial potential, cell viability, and gene expression related to lithium response.
DOI 10.1101/753574 - GenomicsJournal of Computational BiologyPeer-reviewed
INDEX-db: The Indian Exome Reference database (Phase-I)
Husayn Ahmed Pallikonda, V. Vidhya, Ravi Prabhakar More…·MahendraRao
The paper develops a database of coding variations from the Indian population to aid in understanding genotype-phenotype correlations and disease mechanisms.
14 citations - NeurosciencePsychiatry and Clinical NeurosciencesPeer-reviewed
Exome sequencing in families with severe mental illness identifies novel and rare variants in genes implicated in Mendelian neuropsychiatric syndromes
Suhas Ganesh, Husayn Ahmed Pallikonda, Ravi Kumar Nadella…·Odity Mukherjee
39 citations