Dr. Laura Jonkman

Using post-mortem MRI and immunohistochemistry, Wesseling et al. show that brain donors with LATE-NC have lower amygdalar and hippocampal volumes than non-LATE-NC donors, even when correcting for regional p-tau, amyloid-beta, and alpha-synuclein burden. tinyurl.com/43sbp5fr

Interested in postmortem imaging? Join us at the next webinar, where latest advances of postmortem imaging in ADRD will be discussed! Speakers: @NeuroLaura & Pulkit Khandelwal Panel: @DadarMahsa & @paul_yushkevich 📅 Thursday, November 6 🕗 9am CT 👉 alz-org.zoom.us/webinar/regist…

Primary age-related tauopathy #neuropath link.springer.com/article/10.100…

Should every person with suspected Parkinson’s get an MRI? For decades, neurologists have relied on history and examination as the gold standard for diagnosing Parkinson’s disease. Routine MRI scans have not been recommended for people with a classic presentation. However, more and more cases have been emerging and Maas, Bloem and colleagues have challenged us to 'rethink' a potentially outdated approach. Key Points: - The authors remind us that a careful history and neurological examination remain essential for diagnosing Parkinson’s disease. - MRI can occasionally uncover a treatable mimic. - The authors shared two cases that looked like classical Parkinson’s, however MRI revealed other causes: one person had a brain tumor, another had familial brain calcifications. - The absence of clear non-motor symptoms may be more concerning than the author’s originally thought and they therefore argue that we should LOWER THE THRESHOLD for brain imaging. My take: Maybe we should order a MRI for every person w/ Parkinson’s and/or a suspected neurodegenerative disease? David Vaillancourt and his multi-center PSG/NIH study has also recently shown that a 6 minute MRI sequence can be useful to separate PD from PSP and from MSA. Here are 5 points that resonated w/ me about this particular study. 1- Expert evaluation remains the backbone of a Parkinson’s diagnosis. 2- An MRI is not always ordered, but sometimes it can reveal a different and treatable condition. 3- If there are no typical non-motor symptoms like loss of smell, constipation, or dream enactment, doctors may actually need to be more cautious. 4- Getting one MRI early in the process may prevent delays in the right diagnosis and treatment. 5- Ongoing research is shaping how we use imaging to better care for people with suspected Parkinson’s disease. Does your Parkinson's plan pdplan.org account for other diagnoses? pn.bmj.com/content/early/… @Fixelinstitute @parkinsondotorg #parkinson @SfNtweets @movedisorder @TheASNR @EMiddlebrooksMD @DBSThinkTank @basbloem

Ever wondered how small vessel disease is related with AD-proteinopathies in the medial temporal lobe? 🍤🧠 🔗 doi.org/10.1186/s40478… In our new work we show: ✅CAA severity is linked to Aβ-plaques and tau ❌Arteriolosclerosis is not, but is associated with ePVS burden

Using post-mortem in situ MRI, Wesseling et al. show that brain donors with LATE-NC have lower amygdalar and hippocampal volumes than non-LATE-NC donors, even when correcting for regional phosphorylated tau, amyloid-b, and a-syn. tinyurl.com/34p435bd

🚨Calling all neuroimagers! Help @EmmaCoomans shape the opening plenary at #AIC2025 (Toronto, July 26th) "Accomplishments of the Past Year" and share the most impactful neuroimaging research from the past year via this brief survey (~5min) by May 30th. act.alz.org/site/R?i=eOejF…

🏆 Congratulations to Tiago Gil Oliveira (@TGO_lab) Associate Professor at @Med_UMinho, Principal Investigator/Team Coordinator at the @icvs_uminho, Neuroradiologist at Hospital de Braga, author of the award winning work: "Uncovering the mysteries of brain regional susceptibility to neurodegeneration in Alzheimer's disease: from neuropathology to brain magnetic resonance imaging". 👏 🧠 The winner of the 21st edition of the Award emphasised that #AlzheimerDisease “is one of the most common diseases to affect the brain, with the risk increasing with age, and is the most prevalent neurodegenerative pathology in Portugal and in the world”, and stressed that his work aims “to contribute to an early diagnosis and better treatments for Alzheimer's disease”. 🎓 @UMinho_Oficial #BIALFoundation #BIALAward #ClinicalMedicine