Results 41 to 50 of about 144,914 (237)

Best washing method for oligoasthenospermic patients by evaluating DNA integrity by using comet assay study

open access: yesNational Journal of Clinical Anatomy, 2023
Background: Sperm is more than just a mere transporter of paternal genetic information, although serving purposes other than conception. DNA integrity (DI) is regarded as a crucial aspect of semen quality and has great significance in predicting male ...
Balachandran Sivaraja Ganesan   +1 more
doaj   +1 more source

Lung Ultrasound Comet Tails — Technique and Clinical Significance

open access: yes, 2013
While often overlooked by traditional echocardiography, the lungs and evaluation of extrava‐ scular lung water (EVLW) can be assessed by direct visualization with relatively simple ultrasonographic techniques.
D. Summerfield, Bruce Johnson
semanticscholar   +1 more source

Endogenous Amplification of Apoptosis via p53 Regulation using a Cascade Nanocatalytic Medicine

open access: yesAdvanced Science, EarlyView.
An engineered MOF nanomedicine (MAL) triggers cascade nanocatalysis in tumors, converting H2O2 and L‐Arg into cytotoxic peroxynitrite. This induces DNA damage, activates the p53 pathway, and amplifies mitochondrial apoptosis via the BAX/Bcl‐2/Caspase‐3 axis, effectively inhibiting colorectal cancer growth with high biocompatibility.
Tan Wu   +8 more
wiley   +1 more source

RAD18 confers radioresistance of esophagus squamous cell carcinoma through regulating p‐DNA‐PKcs

open access: yesCancer Medicine, 2022
Background Radiotherapy has recently become more common for the treatment of esophageal squamous cell carcinoma (ESCC). Radioresistance, on the other hand, continues to be a major issue because it interferes with the effectiveness of ESCC radiation.
Xiaoqing Li   +8 more
doaj   +1 more source

Macrophage Extracellular Traps in Immunity and Cancer

open access: yesAdvanced Science, EarlyView.
As a macrophage‐mediated innate defense mechanism, the dysregulated release of METs drives chronic inflammation and influences tumor progression. Furthermore, METs exhibit a functional duality within the tumor microenvironment, capable of both promoting and suppressing tumor development.
Junyao Li   +5 more
wiley   +1 more source

Glutamine Deprivation Triggers Tribbles Homolog 3 Dependent G‐Quadruplex Resolution to Maintain DNA Repair and Tumor Survival

open access: yesAdvanced Science, EarlyView.
Glutamine deprivation triggers transient DNA damage yet activates adaptive repair in hepatocellular carcinoma cells. We identify TRIB3 as a stress‐induced nuclear scaffold that associates with DDX5 and G‐quadruplex DNA atBRCA1 andRAD51AP1 promoters. TRIB3 loss increases G4 accumulation, suppresses HR gene transcription, elevates γ‐H2A.X, and sensitizes
Qiang Ji   +10 more
wiley   +1 more source

Hubble Space Telescope Observations of the Interstellar Interloper 3I/ATLAS

open access: yesThe Astrophysical Journal Letters
We present high-angular-resolution observations of the third known interstellar interloper, 3I/ATLAS, from the Hubble Space Telescope. The object is clearly active at 3.8 au preperihelion, showing dust emitted from the hot, Sun-facing side of the nucleus
David Jewitt   +4 more
doaj   +1 more source

Polymerase iota (POLI) confers radioresistance of esophageal squamous cell carcinoma by regulating RAD51 stability and facilitating homologous recombination

open access: yesCell Death Discovery, 2023
Radiotherapy resistance is an important and urgent challenge in the clinical management of esophageal squamous carcinoma (ESCC). However, the factors mediating the ESCC resistance to radiotherapy and its underlying molecular mechanisms are not fully ...
Xiaoqing Li   +12 more
doaj   +1 more source

In vitro cytotoxicity of curcuminoids against head and neck cancer HNO97 cell line

open access: yesBrazilian Journal of Biology, 2021
Oral squamous cell carcinoma (OSCC) is a malignant tumour of Head and Neck Cancer (HNC). The recent therapeutic approaches used to treat cancer have adverse side effects.
Z. Almalki   +5 more
doaj   +1 more source

EDTA‐Functionalized Nanoscale Metal–Organic Framework for Onco‐Cardiology via Radiochemotherapy Synergy and Spatiotemporally Matched Iron Chelation

open access: yesAdvanced Science, EarlyView.
Doxorubicin (DOX)‐induced cardiotoxicity is a major limitation to its broader clinical application, while cardioprotective interventions often risk reducing the anticancer efficacy of DOX. To address these challenges, this work constructs an EDTA‐functionalized metal–organic framework that enhances tumor therapy and provides efficient cardioprotection ...
Daojing Yuan   +8 more
wiley   +1 more source

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