Results 41 to 50 of about 3,899,545 (360)

Palpable Abdominal Mass is a Renal Oncocytoma: Not All Large Renal Masses are Malignant

open access: yesCase Reports in Urology, 2019
A 59-year-old woman presented with abdominal pain and a palpable abdominal mass. Initial imaging revealed a 14cm solid, enhancing renal mass and suspicion for liver and bone metastases.
Sumi Dey   +3 more
doaj   +1 more source

Long‐Term Outcome of Consecutive Patients With Previous Coronary Bypass Surgery, Treated With Newer‐Generation Drug‐Eluting Stents

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2018
BackgroundPercutaneous coronary intervention (PCI) in patients with previous coronary artery bypass grafting (CABG) is associated with adverse clinical events.
Liefke C. van der Heijden   +14 more
doaj   +1 more source

Thyroid tissue in cervical lymph nodes, not always malignant

open access: yesClinical Case Reports, 2022
Thyroid tissue in cervical lymph nodes is an interesting and rare phenomenon that cannot be directly explained by embryology. Distinguishing malignant from benign thyroid tissue in cervical lymph nodes can be challenging but is essential for treatment ...
Anton Frans Gijsen   +2 more
doaj   +1 more source

Cone-beam computed tomography-guided online adaptive radiotherapy is feasible for prostate cancer patients

open access: yesPhysics and Imaging in Radiation Oncology, 2022
Background and purpose: Studies have shown the potential of cone-beam computed tomography (CBCT)-guided online adaptive radiotherapy (oART) for prostate cancer patients in a simulation environment. The aim of this study was to evaluate the feasibility of
Lisanne G.M. Zwart   +7 more
doaj   +1 more source

On the spectrum of towers [PDF]

open access: yesProceedings of the American Mathematical Society, 1983
A new relation is derived between the spectrum of a noncompact Riemannian manifold M M and certain sequences of compact quotients of M M .
openaire   +3 more sources

The nicotinamide hypothesis revisited—plant defense signaling integrating PARP, nicotinamide, nicotinic acid, epigenetics, and glutathione

open access: yesFEBS Letters, EarlyView.
Nicotinamide (NIC) and nicotinic acid (NIA) are proposed as stress signaling compounds in plants. Oxidative stress may lead to single strand breaks (SSB) in DNA, which activate poly(ADP‐ribose) polymerase (PARP). NIC and NIA are then formed from NAD. NIC and NIA can promote epigenetic changes leading to the expression of defense genes specific for the ...
Torkel Berglund, Anna B. Ohlsson
wiley   +1 more source

Immune Response, Inflammation, and the Clinical Spectrum of COVID-19

open access: yesFrontiers in Immunology, 2020
The current COVID-19 pandemic began in December 2019 in Wuhan (China) and rapidly extended to become a global sanitary and economic emergency. Its etiological agent is the coronavirus SARS-CoV-2.
L. Garcia
semanticscholar   +1 more source

Structural dynamics of the plant hormone receptor ETR1 in a native‐like membrane environment

open access: yesFEBS Letters, EarlyView.
The present study unveils the structural and signaling dynamics of ETR1, a key plant ethylene receptor. Using an optimized nanodisc system and solution NMR, we captured full‐length ETR1 in a native‐like membrane environment. Our findings reveal dynamic domain uncoupling and Cu(I)‐induced rigidification, providing the first evidence of metal‐triggered ...
Moritz Lemke   +2 more
wiley   +1 more source

Mechanistic basis for inhibition of the extended‐spectrum β‐lactamase GES‐1 by enmetazobactam and tazobactam

open access: yesFEBS Letters, EarlyView.
Antimicrobial resistance (AMR) is of huge importance, resulting in over 1 million deaths each year. Here, we describe how a new drug, enmetazobactam, designed to help fight resistant bacterial diseases, inhibits a key enzyme (GES‐1) responsible for AMR. Our data show it is a more potent inhibitor than the related tazobactam, with high‐level computation
Michael Beer   +10 more
wiley   +1 more source

The effects of prehabilitation versus usual care to reduce postoperative complications in high-risk patients with colorectal cancer or dysplasia scheduled for elective colorectal resection: study protocol of a randomized controlled trial

open access: yesBMC Gastroenterology, 2018
Background Of all older patients that opt for elective colorectal surgery, approximately one-third has one or more postoperative complications, particularly those patients with a low cardiorespiratory fitness (ventilatory anaerobic threshold (VAT)
Annefleur E. M. Berkel   +12 more
doaj   +1 more source

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