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Alzheimer Association International Conference 2020

Datum: 23 juli 2020 Alzheimer Association International Conference 2020
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Alzheimer Association International Conference (AAIC), the world’s leading conference on diseases that cause dementia takes place from July 27-31. This year, the conference is virtual with prerecorded and live sessions. You can register for AAIC for free. In this blog we will share conference highlights from Alzheimer Center Amsterdam colleagues and other conference news.

The host city of this years edition is Amsterdam, but because of the covid-19 pandemic the conference can’t take place in real life. We have made a video for all AAIC attendees to give a little taste of Amsterdam and to show them around Alzheimer Center Amsterdam.

Follow news on Alzheimer Center Amsterdam presentations on Twitter.

Friday July 31

The final AAIC presentations of Alzheimer Center Amsterdam researchers you can find here: 

The underlying pathology and the genetic risk factors of right temporal variant frontotemporal dementia (FTD) are heterogeneous, unlike semantic dementia. Join the live chat with Hulya Ulugut Erkoyun 8:30AM CDT.

Alzheimer Association International Conference 2020 41The distinction between behavioral variant frontotemporal dementia (FTD) and psychiatric disorders is difficult due to symptomatic overlap. Marie-Paule van Engelen investigates if computer-assisted techniques can help demonstrate differences by studying metabolism patterns. Live chat 8:30AM CDT.

Alzheimer Association International Conference 2020 40Thursday July 30

Self-assessment of everyday functioning is reliable for cross-sectional studies. For longitudinal ageing studies, study partner reports might be more appropriate. Poster #46015 by Merike Verrijp. #CoddeVanBeresteyn #StoffelsHornstra

Alzheimer Association International Conference 2020 39Wednesday July 29

Wednesday July 29 | live sessions

Wiesje van der Flier and Marleen van de Beek present in live sessions today. Make sure to tune in:

Stage 2 Alzheimer’s disease means a diagnosis without cognitive impairment. Wiesje van der Flier shows that a biomarker-based diagnosis is predictive of incident dementia. Live session at 11:30AM CDT. @alzheimernl @Avid @HealthHolland @ZonMw @JPNDeurope #GieskesStrijbis #Pasmanstichting

Alzheimer Association International Conference 2020 38Marleen van de Beek shows that patients in early Lewy-Body Dementia stages develop dementia in 3 years. Patients with mild cognitive impairment Lewy-Body Dementia declined faster on attention compared to mild cognitive impairment due to Alzheimer’s disease. Live session at 8:30 AM CDT . @AlzheimerNL @ZonMW @DplanDementie. Read the full paper here.

Alzheimer Association International Conference 2020 37Wednesday July 29 | oral presentations

Check out these oral presentations by Baayla Boon and Mark Dubbelman on two extremes of clinical manifestations: coarse-grained plaques and everyday functioning. 

Coarse-grained plaque, a divergent Aβ-deposit identified in APOE4 early-onset Alzheimer’s disease cases, shows remarkable similarities with capillary CAA, despite its parenchymal localization. Join the live chat with Baayla Boon at 11:30AM CDT @alzheimernl

Alzheimer Association International Conference 2020 35Alzheimer causes problems in everyday functioning. Mark Dubbelman shows that an increase in everyday problems is visible in the earliest years of the disease. Measuring cognition in daily life is important for tracking progression. Live chat: 12:30PM CDT @alzassociation

Alzheimer Association International Conference 2020 36Wednesday July 29 | poster presentations

Today the presentations are on clinical manifestations. We start the day with posters from Annebet Leeuwis, Hülya Ulugut Erkoyun, Hanneke Rhodius, Marijn Muurling, and Mark Dubbelman. Have a nice day!

Memory problems in heart failure are related with brain atrophy, but not with vascular damage on neuroimaging. Results from the Heart-Brain connection study by Annebet Leeuwis. Check out Poster #42892. #CVON @Hartstichting @dcvalliance

Alzheimer Association International Conference 2020 30Despite aphasia being the early and defining hallmark of Aphasia Onset Dementia, longitudinal results show that each of these diseases has a characteristic progression pattern that frequently includes non-cognitive symptoms. Poster #42105 by Hülya Ulugut Erkoyun

Alzheimer Association International Conference 2020 32Cognitive tests on the computer can distinguish the types of dementia just as well as “traditional” tests with pen and paper. Useful in times of social distancing! Hanneke Rhodius shows her research results at Poster #42626 @HealthHolland, #Combinostics

Alzheimer Association International Conference 2020 31Marijn Muurling found associations of gait disturbances with cognitive impairment and neurodegeneration. Walking patterns can be measured with inexpensive and easy to use accelerometers. More at poster #40152 @HealthHolland @IMI_JU

Alzheimer Association International Conference 2020 33When do changes in functioning have a meaningful impact on daily life according to caregivers? Knowing the smallest meaningful change allows us to better evaluate disease progression and treatment efficacy. Poster #45693 by Mark Dubbelman @alzassociation

Alzheimer Association International Conference 2020 34Tuesday July 28

Lies Thijssen, PhD student at Alzheimer Center Amsterdam, was mentioned in a NY Times feature on blood biomarkers. Read it here.  

Alzheimer Association International Conference 2020 29Very proud of prof. Charlotte Teunissen, partner of Alzheimer Center Amsterdam, who is giving a great overview of the work of her and her team on blood biomarkers of Alzheimer’s disease.

Alzheimer Association International Conference 2020 28Tuesday July 28 | Oral presentations

Today’s oral presentaions. Are you ready for the latest biomarker research from Amsterdam? You can find our researchers here:

Assessing amyloid PET-scans is not as simple as positive/negative. Jarith Ebenau shows that there is a grey in-between area with subtle memory changes. Join the live chat July 28th 7AM CDT. #AVID, #GieskesStrijbisFonds, #Pasman

Alzheimer Association International Conference 2020 23Swift clinical implementation of blood-based biomarkers? Inge Verberk shows results of GBSC standardization of Alzheimer blood biomarker initiative, on pre-analytical sample handling on blood-based amyloid, GFAP and NfL. Join the live chat: 7:30AM CDT @alzassociation

Alzheimer Association International Conference 2020 22How to implement novel automated tests for cerebrospinal fluid biomarkers in practice? Eline Willemse shows that combinations of biomarkers show the best concordance with amyloid-PET for automated biomarker tests: Elecsys and Lumipulse. Join the live chat at 7:30AM CDT @alzassociation

Alzheimer Association International Conference 2020 19Do patients with the behavioral variant of Alzheimer’s disease (bvAD) show frontal tau pathology? Ellen Singleton shows that bvAD is characterized by a temporoparietal pattern of tau PET, with in some cases involvement of frontal areas. Live chat: 9AM CDT @ZonMw @alzheimernl @AlzheimerEMC

Alzheimer Association International Conference 2020 20Does an Alzheimer’s disease hereditary risk profile predict brain damage when dementia is absent? Sven van der Lee shows that a risk profile is more common in people without memory problems, but with Alzheimer biomarkers in cerebrospinal fluid. Join the live chat at 11:00 AM CDT @alzheimernl @ZonMW

Alzheimer Association International Conference 2020 25What is the role of amyloid-β aggregation in individuals that maintained cognitive health over the age of 90? Wiesje Pelkmans gives more insight into this topic. Join the live chat at 12:00 PM CDT @IMI_EMIF 90+study.

Alzheimer Association International Conference 2020 26The eye as a ‘Window to the Brain’ in the search for an early, patient friendly biomarker for Alzheimer’s disease. With post-mortem research Frederique Hart de Ruyter shows that phosphorylated tau in the retina can differentiate Alzheimer’s disease from healthy controls. Join the live chat at 12:30PM CDT

Alzheimer Association International Conference 2020 21It takes ‘two to tangle’. Juhan Reimand shows that amyloid CSF+/PET- status represents a significantly earlier stage of AD than CSF+/PET+. Join the  live chat at 2 PM CDT. With Rik Ossenkoppele.

Alzheimer Association International Conference 2020 24Tuesday July 28 | Live sessions

Three of our young researchers, Emma Coomans, Lies Thijssen, and Ingrid van Maurik, present their work in a live session today. Go check them out:

In Alzheimer’s disease, tau pathology is associated with loss of synapses and slowing of synaptic activity. Results obtained using state-of-the-art PET and MEG imaging techniques will be presented by Emma Coomans in a live session at 7:00 AM CDT @Rodintx @ZonMw #AvidPharma

Alzheimer Association International Conference 2020 16Ingrid van Maurik gives an overview of the biomarker-based prognostic models that have been developed to make a more accurate prognosis in pre-dementia stages. Join the live session at 8:30 AM CDT. @ZonMw @HealthHolland @JPNDeurope #Pasman

Alzheimer Association International Conference 2020 17Different biomarkers measured in blood reflect different aspects of Alzheimer’s disease pathology. With these markers we can work towards a minimally invasive way to monitor disease progression and treatment response. Join the live session with Lies Thijssen at 11:30AM CDT  @HealthHolland

Alzheimer Association International Conference 2020 18Tuesday July 28 | Featured research session

From the Heart-Brain connection study Astrid Hooghiemstra organized a session on “Vascular factors of Alzheimer’s disease”. With Geert Jan Biessels, Julie Schneider, Jonathan Schott, Hilde van den Brink, and Christopher Chen. Join the live chat at 6:30AM CDT @Hartstichting @dcvalliance

Alzheimer Association International Conference 2020 15Tuesday  July 28 | Poster presentations

Biomarker day is here. Alzheimer Center Amsterdam researchers are going to be busy today, as many of our research focuses on biomarkers. From cerebrospinal fluid (CSF), PET, to eye research, you can find it today. First up, posters. 

When is it useful to perform an amyloid PET-scan? Hanneke Rhodius shows that a computer tool can support physicians with this decision using a stepwise approach. Check it out today at Poster #42687 @HealthHolland #Combinostics

Alzheimer Association International Conference 2020 13How alike are genetically identical twins in terms of tau? Emma Coomans shows similarities and dissimilarities in tau accumulation in relationship to presence or absence of amyloid-β pathology. Poster #45876 @NTRscience @alzheimernl #AvidRadiopharmaceuticals

Alzheimer Association International Conference 2020 12Lisa Vermunt, Brian Gordon & Betty Tijms show in DIAN Alzheimer: Signs of axonal damage measured in cerebrospinal fluid are strongly related to lower structural covariance network integrity. Evidence for a fundamental concept? Poster #45905 @Alzheimernl @BenzingerNeuro1 @WUSTL @MIRNeuro

Alzheimer Association International Conference 2020 14Monday July 27

AAIC 2020 was just formally opened by dr. Maria Carrillo. She is the chief science officer of the Alzheimer’s Association. Afterwards, prof. Philip Scheltens, as this years scientific program committee chair, had the honor to announce this years lifetime achievement awards.

Alzheimer Association International Conference 2020 10

AAIC live in Alzheimer Center Amsterdam. Everyday some of our researchers come together and watch live sessions to get the conference feel. While keeping appropriate distance of course.

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Monday July 27 | Oral presentations

It is time for oral presentations and live chat sessions on basic science and the pathogenesis of Alzheimer’s disease, lewy body dementia, and other diseases that cause dementia. You can find the Alzheimer Center Amsterdam presenters here:

How are immune cells affected by aging and Alzheimer’s disease? Lynn Olst from the department of molecular cell biology and immunology presents CyTOF results on how age-associated blood factors affect peripheral immunity in Alzheimer’s disease. This is a collaboration with Jinte Middeldorp from UMCU BrainCenter. Live chat at 8:30AM CDT. @EU_H2020 @ZonMw @alzheimernlAlzheimer Association International Conference 2020 5

Biological pathways involved in Alzheimer’s disease risk and resilience: Niccolò Tesi identified immune system and endocytosis pathways associated with resilience against Alzheimer’s disease in cognitively healthy centenarians. Live chat at 11:00AM CDT. @ZonMw @alzheimernl #HorstingstuitFoundationAlzheimer Association International Conference 2020 8

How genetic risk factors contribute to dementia risk remains elusive. Lianne Reus identified genetic risk loci for Alzheimer’s disease and lewy body dementia as protein quantitative trait loci pQTLs SCR1-16-02 @alzassociation. Join the live chat at 11:00AM CDT.

Alzheimer Association International Conference 2020 7Kirsten Wesenhagen shows that synaptic proteins in cerebrospinal fluid are related with memory depending on amyloid: Lower synaptic levels relate to worse memory in preclinical Alzheimer’s disease, but to better memory in controls. What does this mean? Join the live chat at 12:00 PM CDT @ZonMwAlzheimer Association International Conference 2020 6

In early stages of Alzheimer’s disease neuronal firing is out of control. In this featured research session Willem de Haan and colleagues will discuss this phenomenon and its clinical relevance for Alzheimer’s disease. Join the live chat at 12:00PM CDT @ZonMw.Alzheimer Association International Conference 2020 9

Monday July 27 | Poster presentations

We’re so excited AAIC 2020 is here. We’re starting off the week with posters from Alzheimer Center Amsterdam researchers Henne Holstege, Marta Scarioni, and Karlijn van den Bosch on basic science and pathogenesis. 

Rare genetic variants in the ATP8B4 gene are associated with a higher risk of Alzheimer’s disease. Results from Henne Holstege after comparing genetic material from 26,000 patients with Alzheimer’s disease and controls. Poster #41592 #Dioraphte @alzheimernl #HorstingStuit

Alzheimer Association International Conference 2020 1And another poster on genetics by Henne Holstege and her team. They found that loss of function variants in the SORL1 gene occurred almost exclusively in patients with Alzheimer’s disease. Poster #44492 #Dioraphte @alzheimernl #HorstingStuit

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Karlijn van den Bosch shows that in individuals with subjective cognitive decline (SCD) and amyloid pathology, the BDNF Met-allele is a risk factor for faster cognitive decline and dementia. Poster #42728 @ZonMw @alzheimernl #GieskesStrijbisFonds @JPNDeurope

Alzheimer Association International Conference 2020 3

Psychiatric symptoms are common in frontotemporal dementia (FTD) and form an indicator of underlying pathology. Marta Scarioni shows that early presence of acoustic hallucinations points to TDP43 pathology. Check it out at poster #38926 #EANeurology. Read the paper here.

Alzheimer Association International Conference 2020 4

 

SCIENCe naar “City of Angels” 5

Alzheimer Center Amsterdam on AAIC 2019 in Los Angeles

 

 

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