Objective: To determinate the effects of bilirubin and phototherapy on oxidative stress in newborns.
Study Design: A case-control study.
Place And Duration Of Study: Third level Newborn Intensive Care Unit, Ankara Etlik Zubeyde Hanim Women's Health Teaching and Research Hospital, Turkey, from May to August 2017.
Methodology: Blood samples of 62 term newborns were grouped as control, before and after phototherapy. Total and native thiol, disulfide and ischemia modified albumin values in expressed blood samples were measured. Disulfide-native thiol ratio, disulfide-total thiol ratio and native thiol-total thiol ratio values were computed.
Results: Bilirubin levels were positively correlated with native and total thiol levels and negatively correlated with ischemia modified albumin levels (r=0.409 p= 0.001, r= 0.328 p<0.009, r=-0.503 p<0.001). Native and total thiol levels of the control group were lower (p<0.001) and ischemia modified albumin levels were higher than those before and after phototherapy (p<0.001). In jaundiced newborns, native and total thiol values reduced after phototherapy, while IMA levels increased (p=0.001, p<0.001, p<0.001).
Conclusion: Bilirubin showed antioxidant effect without increasing oxidative stress. Oxidative stress increased after phototherapy. This result was associated with decrease in bilirubin rather than oxidative effect of phototherapy.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.29271/jcpsp.2019.09.843 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Photo-crosslinked Diels-Alder and thiol-ene polymer networks.
RSC Adv
January 2025
Dept. of Chemical Engineering, McGill University 3610 Rue Universite Montreal QC H3A 0C5 Canada
Compositions of ethylene glycol dicyclopentenyl ether methacrylate (EGDEMA), a vegetable oil based alkyl methacrylate (C13MA), and furfuryl methacrylate (FMA) were terpolymerized for dual-crosslinked networks with tailored mechanical and thermal properties. Specifically, initiators for continuous activator regeneration (ICAR) atom transfer radical polymerization (ATRP) afforded materials with tailored glass transition temperature ( ) and incorporation of furan and norbornene functionalities within a single chain. The terpolymer with high furan and norbornene functionality (Ter2: = 0.
View Article and Find Full Text PDFDevelopment and Application of a Polycationic Soybean Protein-Based Flocculant for Enhanced Flocculation and Dewatering of Dairy Manure.
Chemosphere
January 2025
Department of Population Health and Reproduction, School of Veterinary Medicine, University of California-Davis, USA.
In agricultural and waste management systems, dairy manure wastewater is often recycled for irrigation. However, a key challenge lies in handling suspended solids (SS) and effectively dewatering sludge. To address this, an innovative polycationic soybean protein-based flocculant (SPI+) was developed and applied to enhance flocculation and sludge dewatering efficiency.
View Article and Find Full Text PDFNitrile-aminothiol bioorthogonal near-infrared fluorogenic probes for ultrasensitive in vivo imaging.
Nat Commun
January 2025
State Key Laboratory of Anti-Infective Drug Discovery and Development, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China.
Bioorthogonal chemistry-mediated self-assembly holds great promise for dynamic molecular imaging in living organisms. However, existing approaches are limited to nanoaggregates with 'always-on' signals, suffering from high signal-to-background ratio (SBR) and compromised detection sensitivity. Herein we report a nitrile-aminothiol (NAT) bioorthogonal fluorogenic probe (CyNA-SS-FK) for ultrasensitive diagnosis of orthotopic hepatocellular carcinoma.
View Article and Find Full Text PDFColumn Screening and Development of HILIC and RPLC Methods Coupled to Tandem Mass Spectrometry for the Monitoring of Albumin on Cysteine 34 Exposed to Mustard Agents.
J Sep Sci
January 2025
Department of Analytical, Bioanalytical Sciences and Miniaturization (LSABM) Chemistry, Biology and Innovation (CBI), UMR CNRS-ESPCI Paris 8231, ESPCI Paris, PSL University, CNRS, Paris, France.
Adduction on protein nucleophile sites by mustard agents can be monitored to assess detection of retrospective exposure to these agents. Cysteine 34 (Cys34) on human serum albumin was selected as the target of choice. This work targets di- and tripeptides adducted on Cys34 by sulfur mustard, sesquimustard, and nitrogen mustards separated in hydrophilic liquid chromatography (HILIC) and Reversed-Phase (RP) mode.
View Article and Find Full Text PDFAcetylation of proximal cysteine-lysine pairs by alcohol metabolism.
Redox Biol
December 2024
Graduate Program in Toxicology, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA. Electronic address:
Alcohol consumption induces hepatocyte damage through complex processes involving oxidative stress and disrupted metabolism. These factors alter proteomic and epigenetic marks, including alcohol-induced protein acetylation, which is a key post-translational modification (PTM) that regulates hepatic metabolism and is associated with the pathogenesis of alcohol-associated liver disease (ALD). Recent evidence suggests lysine acetylation occurs when a proximal cysteine residue is within ∼15 Å of a lysine residue, referred to as a cysteine-lysine (Cys-Lys) pair.
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!