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🍊Amir Dehsarvi

@amirdehsarvi.bsky.social
108 followers 273 following 2 posts

Principal Scientist Neuroimaging @boehringerglobal.bsky.social Bridging the gap between Machine Learning 🤖 + 🧠 Neuroimaging

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Reposted by 🍊Amir Dehsarvi
Nico Franzmeier @nfranzme.bsky.social · 25/10/2025
New paper out! We systematically compared how ATN biomarker changes track cognitive decline in AD: Tau-PET, plasma ptau217 & cortical thickness changes track cognition, amyloid-PET does not. Ptau217 = cost-effective proxy for monitoring cognitive changes in AD doi.org/10.1002/alz....
doi.org
A systematic comparison of ATN biomarkers for monitoring longitudinal cognitive changes in Alzheimer's disease
INTRODUCTION With anti-amyloid beta (Aβ) therapies approved for Alzheimer's disease (AD), surrogate biomarkers are needed to monitor clinical treatment efficacy. Therefore, we systematically compare.....
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Reposted by 🍊Amir Dehsarvi
Dementia Researcher @dementiaresearcher.bsky.social · 04/10/2025
UCL Hawkes Institute seeks postdoc to develop joint text-vision AI models for MRI analysis in dementia and longevity, led by Prof James Cole at MANIFOLD lab. Closing date: 17th October www.dementiaresearcher.nihr.ac.uk/job/research...
dementiaresearcher.nihr.ac.uk
Research Fellow: Medical imaging analysis
UCL Hawkes Institute seeks postdoc to develop joint text-vision AI models for MRI analysis in dementia and longevity, led by Prof James Cole at MANIFOLD lab.
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Nico Franzmeier @nfranzme.bsky.social · 15/09/2025
Out now in Brain: Our new study shows that tau deposits in Alzheimer’s disease not affect gray matter but also drive degeneration of connected white matter tracts, offering mechanistic insight into how tau disrupts brain networks academic.oup.com/brain/articl...
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Reposted by 🍊Amir Dehsarvi
Nico Franzmeier @nfranzme.bsky.social · 10/06/2025
Very happy to share our 2nd paper today, led by Lukas Frontzkowski: We developed a novel data driven reference region for PI-2620 PET tailored to assess 4R tauopathies, improving i) PSP vs. control separation and ii) PET associations with clinical scores doi.org/10.1007/s002...
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Nico Franzmeier @nfranzme.bsky.social · 10/06/2025
Happy to share our new work by Carla Palleis in Movement Disorders showing that brain networks shape neurodegeneration patterns in PSP => This suggests that grey matter atrophy expands across connected brain regions, potentially following tau accumulation in PSP doi.org/10.1002/mds....
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Jonathan Rittmo @jorittmo.bsky.social · 27/05/2025
How does the brain reorganize in the context of age and AD? Are functional changes in age and AD similar? Are these changes dynamic across the age/AD spectrum? We unpack these questions in a sample of N=973 with AD biomarkers Preprint: tinyurl.com/ymv8s7h8 ⬇️🧵 1/
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Reposted by 🍊Amir Dehsarvi
Alzheimer's Disease International @alzint.org · 28/03/2025
The European Medicines Agency’s Committee for Medicinal Products for Human Use (CHMP) has recommended against granting the marketing authorisation of #donanemab ( #Kisunla ) in the treatment of the mild dementia stage of Alzheimer’s disease across the EU and EEA. www.ema.europa.eu/en/medicines...
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🍊Amir Dehsarvi @amirdehsarvi.bsky.social · 20/03/2025
نوروز مبارک با آرزوی سالی سرشار از آزادی، شادی،‌و سلامتی برای همه
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Reposted by 🍊Amir Dehsarvi
Nico Franzmeier @nfranzme.bsky.social · 18/03/2025
Excited to share our new work in Molecular Neurodegeneration, showing that α-synuclein co-pathology is common in Alzheimer’s and accelerates amyloid-related tau accumulation, supporting its role as a tau co-aggregation factor. doi.org/10.1186/s130...
doi.org
Alpha synuclein co-pathology is associated with accelerated amyloid-driven tau accumulation in Alzheimer’s disease - Molecular Neurodegeneration
Background Aggregated alpha-Synuclein (αSyn) is a hallmark pathology in Parkinson’s disease but also one of the most common co-pathologies in Alzheimer’s disease (AD). Preclinical studies suggest that...
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Johannes Levin @johanneslevin.bsky.social · 21/02/2025
We did it and now it is published: A highly Lewy-fold selective and quantitative Synuclein Aggregate Amplification Assay (SAA). Huge thanks to the amazing teams at MODAG GmbH, LMU Munich, and Bologna University! rdcu.be/eaISM
rdcu.be
A quantitative Lewy-fold-specific alpha-synuclein seed amplification assay as a progression marker for Parkinson’s disease
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allen institute @alleninstitute.org · 18/02/2025
We're now hiring for a Director of our Center for Data-Driven Discovery. The ideal candidate will spearhead efforts to create new methods for representing, analyzing, and interpreting large-scale biological data. Learn more and apply: alleninstitute.org/careers/jobs... #compneuro
alleninstitute.org
Jobs
We are working to solve the biggest mysteries in bioscience.
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Reposted by 🍊Amir Dehsarvi
Elizabeth Head, Ph.D. @elizabethhead.bsky.social · 18/02/2025
This is incredibly stressful to our Alzheimer's community (families and researchers). There are Alzheimer Disease Research Centers that are in limbo now - no council meetings means no notice of awards, means all the research we are doing to slow or prevent this disease is paused indefinitely.
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Dementia Researcher @dementiaresearcher.bsky.social · 15/02/2025
EDoN Research Assistant Research Assistant responsible for harmonizing data, linking with traditional phenotypes from clinical assessments, biomarkers, and imaging, and beginning analysis. Closing date: 13th March www.dementiaresearcher.nihr.ac.uk/job/research...
dementiaresearcher.nihr.ac.uk
Research Assistant: EDoN Initiative (Early Detection of Neurodegeneration)
EDoN Research Assistant Research Assistant responsible for harmonizing data, linking with traditional phenotypes from clinical assessments, biomarkers, and imaging, and beginning analysis.
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Reposted by 🍊Amir Dehsarvi
UK Dementia Research Institute @ukdri.ac.uk · 14/02/2025
Fascinating postdoc opportunity with @JingQiuCDBS (UK DRI at Edinburgh) looking at endothelial cell dysfunction in small vessel disease 🧠 🗓️ Deadline: 20 Feb More about the new project & how to apply 👉 www.ukdri.ac.uk/news-and-eve...
ukdri.ac.uk
Project launched to identify new drug target for vascular dementia
Vascular dementia is one of the most common types of dementia and is growing in prevalence. There are currently no effective treatments for the condition. A new UK DRI project, funded by the British H...
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🍊Amir Dehsarvi @amirdehsarvi.bsky.social · 04/02/2025
NOT male/men BUT female/women
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Reposted by 🍊Amir Dehsarvi
Richard Allen @richjallen.bsky.social · 03/02/2025
A one-year post doc opportunity on an ESRC-funded project at the University of Leeds. Details -> jobs.leeds.ac.uk/vacancy.aspx... Get in touch if you'd like to know more!
jobs.leeds.ac.uk
Job Opportunity at University of Leeds: Research Fellow in Cognitive Ageing and Brain Imaging
Are you looking for an exciting PostDoc position working in brain imaging and cognition? Do you have a PhD or near to completion using imaging methods? Are you interested in how strategies can improve...
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Dementia Researcher @dementiaresearcher.bsky.social · 02/02/2025
Vacancy for a Senior Research Technician to join Professor Sarah Tabrizi’s research group at UCL to provide maternity cover at the Huntington’s Disease Centre. Closing date: 12th February www.dementiaresearcher.nihr.ac.uk/job/senior-r...
dementiaresearcher.nihr.ac.uk
Senior Research Technician - DEMENTIA RESEARCHER
Vacancy for a Senior Research Technician to join Professor Sarah Tabrizi’s research group at UCL to provide maternity cover at the Huntington’s Disease Centre.
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Reposted by 🍊Amir Dehsarvi
Mike Greicius @mikegreicius.bsky.social · 31/01/2025
Excited to be chairing a new Stanford faculty search in Neurology. We are looking for MD and MD/PhD physician-scientists who have a strong research program (wet lab or dry lab) and who are also excellent clinicians. Please spread the word. Here's the link to the job posting: lnkd.in/d6REUGfM
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Nico Franzmeier @nfranzme.bsky.social · 23/01/2025
Huge thanks to alzforum for covering our most recent work! Great summary! www.alzforum.org/news/researc...
alzforum.org
Plaques Spur Spread of Tangles by Sending Synapses into Overdrive | ALZFORUM
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Sebastian Roemer-Cassiano @sebroemer.bsky.social · 24/01/2025
Nice to see Alzforum covering our most recent article in Science Transl Med and highlighting its importance for future lines of research and therapy! Special thanks David Jones and Tarick Pascoal for the great comments on our work! alzforum.org/news/research-…
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Nico Franzmeier @nfranzme.bsky.social · 22/01/2025
Incredibly happy and proud to share our newest work in Science Transl Med showing that Aβ promotes neuronal hyperconnectivity, thereby driving tau spread across connected brain regions. Many thanks to first authors @sebroemer.bsky.social and Fabian Wagner! science.org/doi/10.1126/... Thread below
science.org
Amyloid-associated hyperconnectivity drives tau spread across connected brain regions in Alzheimer’s disease
Aβ induces neuronal hyperconnectivity, which promotes tau spreading from temporal lobe epicenters to connected brain regions in Alzheimer’s disease.
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Reposted by 🍊Amir Dehsarvi
Nico Franzmeier @nfranzme.bsky.social · 16/01/2025
Happy to share our new preprint led by Johannes Gnörich and @matthiasbrendel.bsky.social, showcasing a full ATN staging approach using a single dynamic PI-2620 scan, leveraging advanced kinetic modelling techniques www.medrxiv.org/content/10.1...
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Reposted by 🍊Amir Dehsarvi
Nico Franzmeier @nfranzme.bsky.social · 13/01/2025
Happy to share Davina Biels newest work in @embomolmed.bsky.social, showing stronger Aβ-dependent p-tau increases in women, potentially driven by elevated sTREM2-related microglial activation and stronger effects of ApoE4 carriership in women Many thanks also to co-senior Matthias Brendel!
doi.org
Female sex is linked to a stronger association between sTREM2 and CSF p-tau in Alzheimer’s disease | EMBO Molecular Medicine
imageimageThis study examined whether sex, age, microglial activation or ApoE4 modulates the Aβ to p-tau axis, a critical event in the amyloid cascade that triggers the progression of Alzheimer’s disease (AD) from amyloidosis towards tauopathy. ...
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Reposted by 🍊Amir Dehsarvi
Nico Franzmeier @nfranzme.bsky.social · 12/01/2025
Happy to share our new work led by Johannes Gnörich and Matthias Brendel, suggesting a visual read algorithm for PI-2620 in 4R taupathies. Early imaging windows, kinetic modelling and basal ganglia are key! doi.org/10.1016/j.ne...
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Nico Franzmeier @nfranzme.bsky.social · 11/01/2025
Very happy to share the first PhD work by Hannah de Bruin, showing that traumatic brain injury is not linked to higher fibrillar amyloid and tau per se, but to altered patterns of tau deposition preferentially in TBI vulnerable regions doi.org/10.1093/brai... @rikossenkoppele.bsky.social
doi.org
Amyloid-β and tau deposition in traumatic brain injury: a study of Vietnam War veterans
De Bruin et al. report that traumatic brain injury does not inherently elevate the Alzheimer’s pathologies amyloid-β or tau, but is associated with their u
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Reposted by 🍊Amir Dehsarvi
Nico Franzmeier @nfranzme.bsky.social · 11/01/2025
Paper alert: We performed a prognostic validation of the MDS PSP criteria, showing most patients with possible/suggestive PSP show an increase in diagnostic certainty over time. Increase in diagnostic certainty could be used as an endpoint in trials doi.org/10.1002/mds....
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Ian Kremer @wolverinebear.bsky.social · 08/12/2024
Neuro-#inflammation plays a crucial role in Niemann-Pick type C, a #raredisease associated with childhood #dementia. The research points to a biomarker, a molecule called TSPO, that could be useful in disease monitoring and assessing treatment response. #neuroscience #neurology #pediatrics
dzne.de
New Insights into NPC: a Form of Childhood Dementia
Research underscores involvement of the brain’s immune system
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Reposted by 🍊Amir Dehsarvi
Oscar Woolnough @owoolnough.bsky.social · 27/11/2024
As I've been seeing a lot of job postings here, I've set up a NeuroJobs feed. Add #NeuroJobs to your post if you're recruiting or looking for a PhD, Postdoc, or faculty position in Neuro or an adjacent field. bsky.app/profile/did:...
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Reposted by 🍊Amir Dehsarvi
Nico Franzmeier @nfranzme.bsky.social · 25/11/2024
Massive paper alert: We performed extensive profiling of PI-2620 for 4R tauopathies. PI-2620 tau PET signals in PSP stem from neuronal and oligodendroglial tau, not astrocytes. Signals correlate with fibrillary tau, autoradiography, and autopsy data in PSP doi.org/10.1007/s004...
doi.org
Neuronal and oligodendroglial, but not astroglial, tau translates to in vivo tau PET signals in individuals with primary tauopathies - Acta Neuropathologica
Tau PET has attracted increasing interest as an imaging biomarker for 4-repeat (4R)-tauopathy progressive supranuclear palsy (PSP). However, the translation of in vitro 4R-tau binding to in vivo tau P...
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Thomas Yeo @bttyeo.bsky.social · 23/11/2024
This paper is not that well cited, but still one of my favorite papers (I am not an author) showing that resting-state correlations (aka functional connectivity) is biologically meaningful.
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Nico Franzmeier @nfranzme.bsky.social · 22/11/2024
New paper alert: A two-cutoff CSF Aβ42/40 approach improves Aβ detection in real world clinical settings. CSF Aβ42/40≥7.1 rules out amyloid, while ratios~5.5–7.1 benefit from Aβ PET. Key for Lecanemab stratification. #Alzheimers #Biomarkers 📄read more: doi.org/10.1002/dad2...
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