Results 111 to 120 of about 92,549 (269)

A Cytosine‑Bulged (3+1) Hybrid G‑Quadruplex Formed by the Chicken DNA Replication Origin

Chemistry – A European Journal, EarlyView.
The first high‐resolution structure of an OGRE‐derived G‐quadruplex from the chicken β‐globin replication origin reveals an intramolecular three‐layer (3+1) hybrid fold with a cytosine bulge and an unprecedented 5'‐outer‐quartet anti guanine, creating a distinctive surface for molecular recognition.
Yingying You, Monica Ching Suen, Haitao Miao, Yanyan Geng, Rahman Ud Din, Mu Yuan, Qiang Xue, Xiaoting Li, Naining Xu, Zhihong Guo, Hon‐Ming Lam, Kwok‐Wai Lo, Changdong Liu, Guang Zhu   +13 more
wiley   +1 more source

Introduction of a Double‐Headed Nucleotide Into G‐Quadruplex DNA: Position‐Dependent Stabilization and Structural Insights

Chemistry – A European Journal, EarlyView.
A double‐headed bis‐guanine (G) nucleotide (GG) was evaluated as a noncanonical building block in G‐quadruplexes (G4s). Biophysical and computational analyses reveal that GG can directly participate in G‐tetrads and strongly stabilize G4s in a position‐ and topology‐dependent manner. These findings establish design rules for using GG to engineer highly
Krista Urup, Peter Reinholdt, Kasper Munch Beck, Michael Petersen, Jean‐Louis Mergny, Poul Nielsen   +5 more
wiley   +1 more source

Cytological Features of Clear Cell Sarcoma in Exfoliative and Effusion Cytology Specimen—A Case Report and Literature Review

Diagnostic Cytopathology, EarlyView.
ABSTRACT Clear cell sarcoma of soft tissue (CCSST) with malignant effusion is a rare yet clinically aggressive appearance, which may pose a diagnostic pitfall with its overlapping cytomorphologic features with metastatic melanoma and carcinoma.
William H. Wu, Joanna K. M. Ng, Joshua J. X. Li   +2 more
wiley   +1 more source

A CPC-shelterin-BTR axis regulates mitotic telomere deprotection

Nature Communications
Telomeres prevent ATM activation by sequestering chromosome termini within telomere loops (t-loops). Mitotic arrest promotes telomere linearity and a localized ATM-dependent telomere DNA damage response (DDR) through an unknown mechanism.
Diana Romero-Zamora, Samuel Rogers, Ronnie Ren Jie Low, Scott G. Page, Blake J. E. Lane, Shunya Kosaka, Andrew B. Robinson, Lucy French, Noa Lamm, Fuyuki Ishikawa, Makoto T. Hayashi, Anthony J. Cesare   +11 more
doaj   +1 more source

Systemic aging fuels heart failure: Molecular mechanisms and therapeutic avenues

ESC Heart Failure, Volume 12, Issue 2, Page 1059-1080, April 2025.
Abstract Systemic aging influences various physiological processes and contributes to structural and functional decline in cardiac tissue. These alterations include an increased incidence of left ventricular hypertrophy, a decline in left ventricular diastolic function, left atrial dilation, atrial fibrillation, myocardial fibrosis and cardiac ...
Zhuyubing Fang, Umar Raza, Jia Song, Junyan Lu, Shun Yao, Xiaohong Liu, Wei Zhang, Shujuan Li   +7 more
wiley   +1 more source

Transendocardial injection of expanded autologous CD34+ cells after myocardial infarction: Design of the EXCELLENT trial

ESC Heart Failure, Volume 12, Issue 2, Page 1455-1463, April 2025.
Abstract Aims The extent of irreversible cardiomyocyte necrosis after acute myocardial infarction (AMI) is a major determinant of residual left ventricular (LV) function and clinical outcome. Cell therapy based on CD34+ cells has emerged as an option to help repair the myocardium and to improve outcomes.
Jerome Roncalli, François Roubille, Nicolas Meyer, Giulio Pompilio, Lionel Leroux, Philippe Henon, Guillaume Trebuchet, Anthony Criquet, Matthieu de Kalbermatten, Eric Saloux, Alain Manrique, Pierre‐Yves Marie, Deepak L. Bhatt, Scott D. Solomon, Gilles Montalescot, David E. Newby, Faiez Zannad, on behalf of the EXCELLENT Trial Investigators   +17 more
wiley   +1 more source

Genetic testing among patients evaluated for epilepsy surgery

Epileptic Disorders, EarlyView.
Abstract Objective Genetic testing performed to identify the underlying etiology of epilepsy has become increasingly common and is now being recommended as part of the presurgical evaluation for epilepsy surgery. This study aimed to characterize the types of genetic tests performed in patients evaluated for epilepsy surgery and assess how genetic ...
Anni Saarela, Veera‐Julia Kuronen, Oskari Timonen, Leena Jutila, Katri Silvennoinen, Annemari Kilpeläinen, Jarkko Kirjavainen, Reetta Kälviäinen   +7 more
wiley   +1 more source

Association between modifiable lifestyle factors and telomere length: a univariable and multivariable Mendelian randomization study

Journal of Translational Medicine
Background Telomere length has long been recognized as a valuable biomarker of aging and is inversely correlated with chronological age. Various lifestyle factors have been implicated in telomere shortening or preservation; however, the association ...
Miao Chen, Zhen Wang, Hongfei Xu, Peng Teng, Weidong Li, Liang Ma   +5 more
doaj   +1 more source

Multi‐Cohort Analysis Reveals Genetic Predispositions to Clonal Hematopoiesis as Mutation‐Specific Risk Factors for Stroke

Advanced Genetics, Volume 6, Issue 1, March 2025.
This study comprehensively evaluated the differential effect of clonal hematopoiesis (CH) mutations on the risk of various stroke subtypes and functional recovery. It shows that TET2 is associated with small vessel stroke possibly via a pro‐inflammatory pathway. Abstract Recent observational studies have found an association between Clonal Hematopoesis
Shuyang Lin, Yang E. Li, Yan Wang
wiley   +1 more source

Digital telomere measurement by long-read sequencing distinguishes healthy aging from disease

Nature Communications
Telomere length is an important biomarker of organismal aging and cellular replicative potential, but existing measurement methods are limited in resolution and accuracy.
Santiago E. Sanchez, Yuchao Gu, Yan Wang, Anudeep Golla, Annika Martin, William Shomali, Dirk Hockemeyer, Sharon A. Savage, Steven E. Artandi   +8 more
doaj   +1 more source