Patients with persistently abnormal liver function tests but no serologic evidence of liver disease may nevertheless have hepatitis C virus (HCV) infection, according to a study published in the January 1 issue of The Journal of Infectious Diseases, available online now.
Such occult (meaning hidden or concealed) infection is not supposed to occur--the conventional wisdom is that the virus leaves markers in serum or plasma, including specific antibodies and viral RNA, which have been the serologic cornerstones for diagnosing and monitoring HCV-infected patients. Although occult HCV infection generally appears to be mild, some patients have shown evidence of serious chronic liver injury. In addition, occult infection raises the possibility of disease spread via blood donations, hemodialysis and other procedures. Fortunately, the study also suggests a minimally invasive approach to detect occult infection.
The study, reported by a group headed by Vicente Carreño, MD, in Madrid, Spain, involved 100 patients with abnormally high levels of aspartate aminotransferase (AST), alanine aminotransferase (ALT) or gamma glutamyl transpeptidase (GGTP) for at least 12 months in whom all causes of liver disease, including HCV infection, had ostensibly been excluded. All three liver enzymes were elevated in eight patients, two of the enzymes in 48 and one enzyme in 44. For comparison, 30 patients with liver damage known to be of non-viral origin were also studied.
Diana Olson | EurekAlert!
Plasmonic biosensors enable development of new easy-to-use health tests
14.12.2017 | Aalto University
ASU scientists develop new, rapid pipeline for antimicrobials
14.12.2017 | Arizona State University
MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...
Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...
Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
With innovative experiments, researchers at the Helmholtz-Zentrums Geesthacht and the Technical University Hamburg unravel why tiny metallic structures are extremely strong
Light-weight and simultaneously strong – porous metallic nanomaterials promise interesting applications as, for instance, for future aeroplanes with enhanced...
11.12.2017 | Event News
08.12.2017 | Event News
07.12.2017 | Event News
14.12.2017 | Health and Medicine
14.12.2017 | Physics and Astronomy
14.12.2017 | Life Sciences