AI Article Synopsis
- The study assessed how Pacific herring embryos accumulate polycyclic aromatic hydrocarbons (PAHs) in locations affected by a partially completed removal of creosote-treated pilings (CTPs).
- Embryos near undisturbed CTPs had higher levels of PAHs and increased expression of the cyp1a gene compared to those from cleaner reference areas.
- After CTP removal, embryos near debris showed PAH levels 90 times higher than reference areas, highlighting the risks of incomplete CTP removal for vulnerable fish populations.
Article Abstract
We used manually spawned, field-deployed embryos of a common marine fish species, Pacific herring (Clupea pallasii), to evaluate accumulation of polycyclic aromatic hydrocarbons (PAHs) associated with an incomplete creosote-treated piling (CTP) removal project. Embryos near undisturbed 100-year-old CTPs (before removal) accumulated higher PAHs and exhibited higher cyp1a gene expression than embryos from reference areas. Embryos incubated close to CTP debris after CTP removal showed PAHs 90 times higher than reference areas up to a year after CTP removal. cyp1a fold-induction correlated with total embryo PAHs in all three years. Patterns of individual PAH chemicals differed slightly between embryos, wood sampled from CTPs, and passive samplers. This study illustrates the importance of using appropriate techniques and procedures to remove CTPs in aquatic environments to prevent release of toxic chemicals. Of particular concern is that incomplete CTP removal could expose sensitive life stages of fishes to chemicals that may reduce their survival.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.marpolbul.2019.03.028 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Diagnostic performance of CCTA and CTP imaging for clinically suspected in-stent restenosis: A meta-analysis.
J Cardiovasc Comput Tomogr
November 2024
Department of Cardiology, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands; Department of Cardiology, Radboud University Medical Center, Nijmegen, the Netherlands. Electronic address:
Article Synopsis
- The study aimed to compare the effectiveness of Coronary Computed Tomography Angiography (CCTA) alone and in combination with Computed Tomography Perfusion (CTP) for detecting in-stent restenosis (ISR).
- After reviewing over 18,000 studies, researchers included 20 relevant studies in their meta-analysis, focusing on those that used advanced 64-slice CT technology.
- Results showed that both CCTA and CCTA + CTP had high diagnostic accuracy for ISR, suggesting these imaging methods should be used regardless of a patient's previous stent placement.
Time-Dependent Electrical Active and Ultrasound-Responsive Calcium Titanate Implant Coating with Immunomodulation, Osteogenesis, and Customized Antibacterial Activity.
Small
December 2024
The National Engineering Research Center for Bioengineering Drugs and the Technologies Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi, 330006, P. R. China.
Article Synopsis
- This study focuses on the creation of a polarized calcium titanate (CT-P) coating for titanium implants to tackle surgical site infections and poor osseointegration.
- The CT-P coating generates electrical stimulation that helps shift macrophage behavior from pro-inflammatory to anti-inflammatory, enhancing bone healing and integration with the implant.
- Additionally, the coating can respond to ultrasound to produce reactive oxygen species that effectively eliminate bacteria like Staphylococcus aureus, offering a new approach for preventing infections during oral implant surgeries.
Effect of singular value decomposition on removing injection variability in 2D quantitative angiography: An in silico and in vitro phantoms study.
Med Phys
November 2024
Department of Biomedical Engineering, University at Buffalo, Buffalo, New York, USA.
Article Synopsis
- Intraoperative 2D quantitative angiography (QA) for detecting intracranial aneurysms faces accuracy challenges due to inconsistencies in hand-injection techniques, prompting the exploration of singular value decomposition (SVD) algorithms as a potential solution.
- This study aims to adapt SVD-based deconvolution methods from computed tomography perfusion (CTP) to improve the reliability and accuracy of hemodynamic assessments in 2D QA, independent of variable injection conditions.
- By analyzing virtual angiograms from internal carotid aneurysm cases, the research applies various SVD methods to extract key flow parameters and evaluate the effects of injection duration and inlet velocity on QA outcomes.
Stable Production of a Recombinant Single-Chain Eel Follicle-Stimulating Hormone Analog in CHO DG44 Cells.
Int J Mol Sci
July 2024
Carbon-Neutral Resources Research Center, Hankyong National University, Anseong 17579, Republic of Korea.
Article Synopsis
- - The study focused on creating highly active single-chain recombinant Anguillid eel follicle-stimulating hormone (rec-eel FSH) variants by incorporating a specific peptide from equine chorionic gonadotropin (eCG) into the hormone's structure.
- - Researchers constructed a mutant version (FSH-M) with this peptide, transfected it into CHO DG44 cells, and found that its secretion peaked at 4000-5000 ng/mL on day 9, showing slightly higher biological activity compared to the wild-type version (FSH-wt).
- - The results suggest that the new rec-eel FSH with the eCG linker can be produced in large quantities and has strong potential
Targeting calpain-2-mediated junctophilin-2 cleavage delays heart failure progression following myocardial infarction.
J Mol Cell Cardiol
September 2024
Cardiovascular Research Institute, Baylor College of Medicine, Houston, TX, USA; Department of Integrative Physiology, Baylor College of Medicine, Houston, TX, USA; Department of Medicine/Cardiology, Baylor College of Medicine, USA; Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA; Center for Space Medicine, Baylor College of Medicine, Houston, TX, USA. Electronic address:
Coronary heart disease (CHD) is a prevalent cardiac disease that causes over 370,000 deaths annually in the USA. In CHD, occlusion of a coronary artery causes ischemia of the cardiac muscle, which results in myocardial infarction (MI). Junctophilin-2 (JPH2) is a membrane protein that ensures efficient calcium handling and proper excitation-contraction coupling.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!