Results 81 to 90 of about 6,218,792 (246)

Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank

FEBS Open Bio, EarlyView.
Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer, Pawel Rubach, Zbigniew Dauter, Wojciech Dec, Dariusz Brzezinski, Marta Kulik, Wladek Minor, Mariusz Jaskolski   +7 more
wiley   +1 more source

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

Aging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

Retrocaval ureter: Computed tomography and ultrasound appearance

, 1987
The computed tomography and sonography appearance of retrocaval ureter is correlated with findings on intravenous urography. Computed tomography is recommended as the imaging procedure of choice to confirm the diagnosis of retrocaval ...
Murphy, Brian J, Becerra, Jose Luis, Casillas, Javier   +2 more
core   +1 more source

Acute Kidney Injury After Mechanical Thrombectomy for Stroke in Patients With Pre‐Existing Renal Impairment

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Acute kidney injury (AKI) is a common but often underrecognized complication in ischemic stroke patients undergoing mechanical thrombectomy, particularly among those with pre‐existing renal impairment. This study evaluated the incidence, risk factors, and clinical impact of AKI in this high‐risk population.
Michał Borończyk, Marcel Pilarek, Emilia Jaworska, Natalia Kardas, Oliwia Barnaś, Julia Woźniak, Iga Machała, Julia Węgrzynek‐Gallina, Joanna Siuda, Anna Hawrot‐Kawecka, Anetta Lasek‐Bal   +10 more
wiley   +1 more source

Radiation Dose Measurement in Head and Neck and Chest CT Examinations Using Multi-Detector CT

Advanced Biomedical Research
Background: Assessing radiation doses during CT examinations is crucial due to the increased use of CT devices and the associated cancer risk. This study evaluates the mean radiation doses in the thyroid, lungs, and heart by using multi-slice CT, along ...
Farideh Momeni, Daryoush Shahbazi-Gahrouei, Khadijeh R. E. Saraee, Sina Mardfar, Soheila S. Jazi, Hamed Zamani, Meysam H. Boroujeni   +6 more
doaj   +1 more source

Clinical Low-Dose Computed Tomography Application for Urinary Calculi Detection Based on Model [PDF]

Journal of Radiation Protection and Research
Background Low-dose computed tomography (LDCT) is gaining attention for its potential to reduce radiation exposure in clinical imaging, particularly for urinary calculi detection. However, the optimal dose and clinical efficacy of LDCT remain to be fully
Yingdi Xie, Yangchun Gu, Jingshan Tao, Hailing Liu, Ke Zhu   +4 more
doaj   +1 more source

Reducing Dose In Coronary Computed Tomography Angiography (CCTA) [PDF]

, 2021
This project describes the different techniques that can be implemented during coronary computed tomography angiography (CCTA) to reduce patient dose.
Ambrosio, Mariah
core   +1 more source

Establishment of local diagnostic reference levels for CT colonography at a tertiary hospital

South African Journal of Radiology
Background: Diagnostic reference levels (DRLs) are an important metric in identifying abnormally high radiation doses in diagnostic examinations. National DRLs for CT colonography do not currently exist in South Africa, but there are efforts to collect ...
Filip M. Kozłowski, Christoffel J. van Reenen, Christoph J. Trauernicht   +2 more
doaj   +1 more source

Chest Circumference as a Predictive Parameter of Computed Tomography Coronary Angiography Radiation Doses from Dual-Source Computed Tomography

Eurasian Journal of Medicine, 2019
Objective: Our aim in this study was to determine the relationship between chest circumference and the radiation doses received by breast tissues during Dual-Source Computed Tomography (DSCT) cardiac scans. Materials and Methods: Routine cardiac DSCT
M. Erdem Sagsoz, Ummugulsum Bayraktutan, Hayri Ogul, Mecit Kantarci   +3 more
doaj   +1 more source

Plasma EV Proteomics Identifies ECM Remodeling and Inflammatory Proteins LUM and C7 as Candidate Biomarkers in FSHD

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Facioscapulohumeral muscular dystrophy (FSHD) is one of the most debilitating and common muscular dystrophies. Despite its severity, no approved therapy exists for FSHD patients. However, several therapeutic candidates are currently under development, and some have recently entered clinical trials, marking the need for reliable ...
Mustafa Bilal Bayazit, Chiranth K. Nagaraj, Jackson S. Newell, Kim Truc Nguyen, Xilal Y. Rima, Jacob Doon‐Ralls, Eduardo Reátegui, Jeffrey M. Statland, Rabi Tawil, Kevin M. Flanigan, Scott Q. Harper, Nizar Y. Saad   +11 more
wiley   +1 more source