"In 95% of patients with aortic dissection.... the dissection depth index (0.782 [0.695, 0.842]) is greater than 0.503"
Dissection propagates in outer media
#AortaEd
#CardiovascPathol 2024
www.sciencedirect.com/science/arti...
www.ncbi.nlm.nih.gov/pmc/articles...
#EDS #LDS #Mafran #CTD #meded #FOAMed #medicine #doctors #genetics #MedSky
Luminal side: Wnt1+ #CardiacNeuralCrest
Abluminal side: Mef2c+ #SecondHeartField
Their transcript profiles by scRNAseq + snATACseq👇
#AortaEd
#ATVB 2024 @ahajournals.bsky.social
www.ahajournals.org/doi/10.1161/...
Luminal side: Wnt1+ #CardiacNeuralCrest
Abluminal side: Mef2c+ #SecondHeartField
Their transcript profiles by scRNAseq + snATACseq👇
#AortaEd
#ATVB 2024 @ahajournals.bsky.social
www.ahajournals.org/doi/10.1161/...
#AortaEd
#ActaBio 2023
www.sciencedirect.com/science/arti...
#AortaEd
#ActaBio 2023
www.sciencedirect.com/science/arti...
Aortic Root
Fbn1 C1041G/+🐭
2.4k proteins
3.5k cells
487 proteins/cell👈
7 Smooth Muscle Cell subtypes
Prss2, Lrp1 as modulated SMC markers
vs scRNAseq
+SeqIF (21 Ab)
#AortaEd
Sarah Parker lab #MolCellProteomics 2026
www.mcponline.org/article/S153...
Aortic Root
Fbn1 C1041G/+🐭
2.4k proteins
3.5k cells
487 proteins/cell👈
7 Smooth Muscle Cell subtypes
Prss2, Lrp1 as modulated SMC markers
vs scRNAseq
+SeqIF (21 Ab)
#AortaEd
Sarah Parker lab #MolCellProteomics 2026
www.mcponline.org/article/S153...
EC TRPV4 activity⏫
🐭#AbdominalAorticAneurysm (local elastase)
via⏫EC #Apoptosis (how does this propagate to #SmoothMuscleCell loss) w/o altering #NitricOxide
#AortaEd
#EurJPharmacol 2024
www.sciencedirect.com/science/arti...
EC TRPV4 activity⏫
🐭#AbdominalAorticAneurysm (local elastase)
via⏫EC #Apoptosis (how does this propagate to #SmoothMuscleCell loss) w/o altering #NitricOxide
#AortaEd
#EurJPharmacol 2024
www.sciencedirect.com/science/arti...
#AortaEd
#JTissEng 2025
journals.sagepub.com/doi/10.1177/...
#AortaEd
#JTissEng 2025
journals.sagepub.com/doi/10.1177/...
👇👇👇
www.annalsofvascularsurgery.com/article/S089...
👇👇👇
www.annalsofvascularsurgery.com/article/S089...
Carotid
Aortic Arch
Descending Thoracic
Abdominal Aortic #SmoothMuscleCell
Arch
#SecondHeartField vs #NeuralCrest SMC
339 Regional SMC mRNA features ➡️ cardiovascular trait GWAS
#AortaEd
#NatCardiovascRes 2025
www.nature.com/articles/s44...
Carotid
Aortic Arch
Descending Thoracic
Abdominal Aortic #SmoothMuscleCell
Arch
#SecondHeartField vs #NeuralCrest SMC
339 Regional SMC mRNA features ➡️ cardiovascular trait GWAS
#AortaEd
#NatCardiovascRes 2025
www.nature.com/articles/s44...
A novel Marfan🐭➡️early #ThroacicAorticDissection #AorticRupture Fbn1G234D/G234D T50=5 wk
⏬pSMAD2 ↔️pERK1/2
#AortaEd
Hiromi Yanagisawa lab #CircRes 2025
www.ahajournals.org/doi/suppl/10...
A novel Marfan🐭➡️early #ThroacicAorticDissection #AorticRupture Fbn1G234D/G234D T50=5 wk
⏬pSMAD2 ↔️pERK1/2
#AortaEd
Hiromi Yanagisawa lab #CircRes 2025
www.ahajournals.org/doi/suppl/10...
N=121
5.4 y f/up
Neg➖
Ascending Aortic Angle
I want BAV🐭 to study aortic angles!🤔
Pos➕
Diameter Length Calcium
#AortaEd
@markelindsay.bsky.social #ClinImaging 2026
www.sciencedirect.com/science/arti...
N=121
5.4 y f/up
Neg➖
Ascending Aortic Angle
I want BAV🐭 to study aortic angles!🤔
Pos➕
Diameter Length Calcium
#AortaEd
@markelindsay.bsky.social #ClinImaging 2026
www.sciencedirect.com/science/arti...
"In 95% of patients with aortic dissection.... the dissection depth index (0.782 [0.695, 0.842]) is greater than 0.503"
Dissection propagates in outer media
#AortaEd
#CardiovascPathol 2024
www.sciencedirect.com/science/arti...
"In 95% of patients with aortic dissection.... the dissection depth index (0.782 [0.695, 0.842]) is greater than 0.503"
Dissection propagates in outer media
#AortaEd
#CardiovascPathol 2024
www.sciencedirect.com/science/arti...
#AORTAScore (clinical covariates)+aortic #PolygenicScore
Explaining 35%~42% variance in #AscendingAorticDiameter
Identify👤ɸ≥4cm in 4 cohorts
UK Biobank
MGB
FHS
All of Us
#AortaEd
@jpirruccello @MarkELindsay @patrick_ellinor bioRxiv 2023
www.medrxiv.org/content/10.1...
@scullingmonkey.bsky.social @shipraaryamd.bsky.social @zieglermd.bsky.social @pacuhold.bsky.social @ginnyab.bsky.social @dukevascular.bsky.social @drpenwa.bsky.social @tristanlane.bsky.social
@scullingmonkey.bsky.social @shipraaryamd.bsky.social @zieglermd.bsky.social @pacuhold.bsky.social @ginnyab.bsky.social @dukevascular.bsky.social @drpenwa.bsky.social @tristanlane.bsky.social
#AortaEd
#SciReports 2025
www.nature.com/articles/s41...
#AortaEd
#SciReports 2025
www.nature.com/articles/s41...
Meta-analysis of 22 Studies
TAA
Incidence🟰5.3/100,000 person-year
Prevalence🟰0.16%
Thoracic #AorticRupture
Incidence🟰1.6/100,000 ps-yr
#AortaEd
#SeminThoracCardiovascSurg 2022
www.sciencedirect.com/science/arti...
Meta-analysis of 22 Studies
TAA
Incidence🟰5.3/100,000 person-year
Prevalence🟰0.16%
Thoracic #AorticRupture
Incidence🟰1.6/100,000 ps-yr
#AortaEd
#SeminThoracCardiovascSurg 2022
www.sciencedirect.com/science/arti...
6X ea ♀️♂️ WT Fbn1C1049G/+
24 Aortic roots▶️4996 cells, 2746 proteins, 487 proteins/cell
7 #SmoothMuscleCell subtypes!🤩
poorly overlapped with scRNAseq SMC subtype
#EndMT in Marfan #EndothelialCell
#AortaEd
bioRxiv 2025
www.biorxiv.org/content/10.1...
6X ea ♀️♂️ WT Fbn1C1049G/+
24 Aortic roots▶️4996 cells, 2746 proteins, 487 proteins/cell
7 #SmoothMuscleCell subtypes!🤩
poorly overlapped with scRNAseq SMC subtype
#EndMT in Marfan #EndothelialCell
#AortaEd
bioRxiv 2025
www.biorxiv.org/content/10.1...
Dilated subjects (vs Non-dilated)
⏬Axial & in-plane motion
⏬Distensibility
Less stiff aortas (or just larger?🧐)➡️⬆️risks of growth
#AortaEd
#EHJIMP 2024
academic.oup.com/ehjimp/advan...
Dilated subjects (vs Non-dilated)
⏬Axial & in-plane motion
⏬Distensibility
Less stiff aortas (or just larger?🧐)➡️⬆️risks of growth
#AortaEd
#EHJIMP 2024
academic.oup.com/ehjimp/advan...
Wnt1-Cre cardiac neural crest (inner media)-derived SMC
vs
Mef2c-Cre second heart field (outer media)-derived SMC
#AortaEd
David Dichek lab #ATVB 2025
www.ahajournals.org/doi/10.1161/...
Wnt1-Cre cardiac neural crest (inner media)-derived SMC
vs
Mef2c-Cre second heart field (outer media)-derived SMC
#AortaEd
David Dichek lab #ATVB 2025
www.ahajournals.org/doi/10.1161/...
N=1790
#VascularEhlersDanlosSyndrome
#LoeysDietzSyndrome
#MarfanSyndrome
Risk by 40 y/o
Arterial
♂️vEDS>LDS~MFS
♀️vEDS~LDS>MFS
Aortic
TGFBR2>FBN1>TGFBR1~TGFB2>COL3A1~SMAD3
#AortaEd
#JACC 2025
www.sciencedirect.com/science/arti...
N=1790
#VascularEhlersDanlosSyndrome
#LoeysDietzSyndrome
#MarfanSyndrome
Risk by 40 y/o
Arterial
♂️vEDS>LDS~MFS
♀️vEDS~LDS>MFS
Aortic
TGFBR2>FBN1>TGFBR1~TGFB2>COL3A1~SMAD3
#AortaEd
#JACC 2025
www.sciencedirect.com/science/arti...
Fbn1 G234D/G234D🐭
👉Early death by 5-wk of age◀️ #AorticRupture
👉⏬binding to LTBP1/2/4➡️⏬aortic TGFβ signal
Endothelial mechanosensing failure as an early event in Marfan Aortopathy!😎
#AortaEd
Hiromi Yanagisawa lab bioRxiv 2024
www.biorxiv.org/content/10.1...
Fbn1 G234D/G234D🐭
👉Early death by 5-wk of age◀️ #AorticRupture
👉⏬binding to LTBP1/2/4➡️⏬aortic TGFβ signal
Endothelial mechanosensing failure as an early event in Marfan Aortopathy!😎
#AortaEd
Hiromi Yanagisawa lab bioRxiv 2024
www.biorxiv.org/content/10.1...