We designed an electrochemical sensor based on a carbon nanotube modified electrode (ME) to analyze DNA-cleaving activity. The cleavage of high molecular weight DNA resulted in an increase in the oxidation current from DNA guanine nucleotides due to a change in DNA adsorptive behavior on the surface of the ME. DNA digestion with DNAse I was accompanied by a linear increase in the DNA signal in proportion to the enzyme activity. We then proposed an assay based on the sensor for the direct assessment of the total deoxyribonuclease activity of blood serum as well as the separate detection of DNAse I and DNA abzymes. The assay was applied to analyze deoxyribonucleases in sera from 21 healthy donors and 17 patients with autoimmune thyroiditis. Our results show that the response of the sensor to DNA cleavage by blood deoxyribonucleases is a promising diagnostic criterion for autoimmune thyroiditis. This sensor can be implemented in a disposable screen-printed electrode format for application in clinical laboratories.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00216-011-5335-2 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A study of autoimmune thyroid disease in pregnant women and its effect on fetal and maternal outcome.
J Family Med Prim Care
November 2024
Department of Physiology, Sheikh Bhikhari Medical College, Hazaribag, Jharkhand, India.
Introduction: Anti-thyroid antibodies not only cause thyroid dysfunction but have independent adverse outcomes in the fetus and mother during pregnancy and after birth. Chronic lymphocytic thyroiditis as a presentation of immune system deregulation may be associated with a generalized activation of the immune system at the fetus-maternal unit, the placenta. This interference could be associated with pregnancy morbidities in m o t h e r a n d fetus.
View Article and Find Full Text PDFDiagnostic Ability of Risk Models in the Field of Ischemic Stroke for Predicting Atherosclerotic Outcomes in Patients with Acute Myocardial Infarction.
J Atheroscler Thromb
December 2024
Department of Cardiovascular Medicine, Chiba University Hospital.
Aims: Several risk-scoring models, including the Fukuoka Stroke Risk Score, Essen Stroke Risk Score, and Stroke Prognosis Instrument II, have been developed to predict recurrent cerebrovascular events in patients with ischemic stroke. As myocardial infarction (MI) and ischemic stroke are both atherosclerotic diseases, these scoring models in the field of cerebrovascular disease may be applicable and useful for risk stratification in patients with acute MI. We therefore evaluated the diagnostic ability and clinical applicability of these stroke risk scores in predicting atherosclerotic events after acute MI.
View Article and Find Full Text PDFPrognostic value of a composite physiologic index developed by adding bronchial and hyperlucent volumes quantified via artificial intelligence technology.
Respir Res
December 2024
Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Background: The composite physiologic index (CPI) was developed to estimate the extent of interstitial lung disease (ILD) in idiopathic pulmonary fibrosis (IPF) patients based on pulmonary function tests (PFTs). The CALIPER-revised version of the CPI (CALIPER-CPI) was also developed to estimate the volume fraction of ILD measured by CALIPER, an automated quantitative CT postprocessing software. Recently, artificial intelligence-based quantitative CT image analysis software (AIQCT), which can be used to quantify the bronchial volume separately from the ILD volume, was developed and validated in IPF.
View Article and Find Full Text PDFIn vivo hyperphosphorylation of tau is associated with synaptic loss and behavioral abnormalities in the absence of tau seeds.
Nat Neurosci
December 2024
Laboratory for Proteolytic Neuroscience, RIKEN Center for Brain Science, Wako, Japan.
Tau pathology is a hallmark of several neurodegenerative diseases, including frontotemporal dementia and Alzheimer's disease. However, the sequence of events and the form of tau that confers toxicity are still unclear, due in large part to the lack of physiological models of tauopathy initiation and progression in which to test hypotheses. We have developed a series of targeted mice expressing frontotemporal-dementia-causing mutations in the humanized MAPT gene to investigate the earliest stages of tauopathy.
View Article and Find Full Text PDFArketamine alleviates cognitive impairments and demyelination in mice with postoperative cognitive dysfunction via TGF-β1 activation.
Prog Neuropsychopharmacol Biol Psychiatry
December 2024
Chiba University Center for Forensic Mental Health, Chiba 260-8670, Japan; Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China. Electronic address:
Postoperative cognitive dysfunction (POCD) is characterized by a decline in cognitive functions, including memory, attention, and executive abilities, following surgery, with no effective therapeutic drugs currently available. Arketamine, the (R)-enantiomer of ketamine, has shown promise in mitigating cognitive deficits in animal models. In this study, we investigated whether arketamine could ameliorate cognitive deficits in a mouse model of POCD, with a focus on the role of transforming growth factor (TGF)-β1 in its effects.
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!