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Prevalence of transthyretin amyloidosis among heart failure patients with preserved ejection fraction in Japan.
ESC Heart Fail
June 2023
Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan.
Aims: Heart failure with preserved ejection fraction (HFpEF), which is caused by wide various conditions, has become a major public health problem. Transthyretin amyloid cardiomyopathy (ATTR-CM), which is thought to be an underdiagnosed disease, can cause HFpEF. Non-invasive diagnosis using Technetium (Tc)-pyrophosphate (PYP) scintigraphy enables accurate diagnosis of ATTR-CM.
View Article and Find Full Text PDFHypothyroidism Due to Thyroid Amyloidosis Simultaneously With AL Renal Amyloidosis to Give Better Idea of Association of the Two Conditions.
Int Med Case Rep J
January 2025
Department of Neurology, The Lishui Hospital of Wenzhou Medical University, The First Affiliated Hospital of Lishui University, Lishui People's Hospital, Lishui, Zhejiang, 323000, People's Republic of China.
Primary amyloidosis (AL type) is a systemic disease that can lead to structural and functional damage to organs and tissues such as the kidney, heart and liver with non-specific symptoms. Most of the affected patients develop thyroid infiltration and thus diffuse enlargement of the thyroid gland, while cases leading to hypothyroidism are exceedingly rare. Some researchers have analyzed thyroid function in newly diagnosed patients with AL amyloidosis, and found that the incidence of overt hypothyroidism is only 7%.
View Article and Find Full Text PDFUnraveling the Role of Myocardial Inflammation in ATTR-CM: A Targetable Mechanism?
Circ Heart Fail
January 2025
Pathology Unit, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Azienda Ospedaliero-Universitaria di Bologna, Italy (M.R.).
Myocardial Inflammation in Cardiac Transthyretin Amyloidosis: Prevalence and Potential Prognostic Implications.
Circ Heart Fail
January 2025
Department of Cardiology, Angiology and Intensive Care Medicine, Deutsches Herzzentrum der Charité, Berlin, Germany (M.L.M., U.L., B.H., D.M., A.B., I.M., S.S.).
Background: Despite previous histopathologic evidence for its presence, the role of myocardial inflammation in the development and progression of cardiac transthyretin amyloidosis (ATTR-CA) remains insufficiently understood. Thus, this study sought to characterize the prevalence and potential prognostic implications of myocardial inflammation in ATTR-CA.
Methods: A retrospective observational study including patients with ATTR-CA diagnosed by endomyocardial biopsy was conducted.
NumSimEX: A method using EXX hydrogen exchange mass spectrometry to map the energetics of protein folding landscapes.
Protein Sci
February 2025
Amherst College, Amherst, Massachusetts, USA.
Hydrogen exchange mass spectrometry (HXMS) is a powerful tool to understand protein folding pathways and energetics. However, HXMS experiments to date have used exchange conditions termed EX1 or EX2 which limit the information that can be gained compared to the more general EXX exchange regime. If EXX behavior could be understood and analyzed, a single HXMS timecourse on an intact protein could fully map its folding landscape without requiring denaturation.
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