The kinetics of Herpes simplex infection development was studied using an FTIR microscopy (FTIR-M) method. The family of herpes viruses includes several members like H. simplex types I and II (HSV I, II), Varicella zoster (VZV) viruses which are involved in various human and animal infections of different parts of the body. In our previous study, we found significant spectral differences between normal uninfected cells in cultures and cells infected with herpes viruses at early stages of the infection. In the present study, cells in cultures were infected with either HSV-I or VZV and at various times post-infection they were examined either by optical microscopy or by advanced FTIR-M. Spectroscopic measurements show a consistent decrease in the intensity of the carbohydrate peak in correlation with the viral infection development, observed by optical microscopy. This decrease in cellular carbohydrate level was used as indicator for herpes viruses infection kinetics. This parameter could be used as a basis for applying a spectroscopic method for the evaluation of herpes virus infection development. Our results show also that the development kinetics of viral infection has an exponential character for these viruses.
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http://dx.doi.org/10.1016/j.saa.2003.12.009 | DOI Listing |
Nat Commun
January 2025
Institute of Virology, University Medical Center, and Faculty of Medicine, Albert-Ludwig-University Freiburg, Freiburg, Germany.
Zygotic genome activation (ZGA) is crucial for maternal to zygotic transition at the 2-8-cell stage in order to overcome silencing of genes and enable transcription from the zygotic genome. In humans, ZGA is induced by DUX4, a pioneer factor that drives expression of downstream germline-specific genes and retroelements. Here we show that herpesviruses from all subfamilies, papillomaviruses and Merkel cell polyomavirus actively induce DUX4 expression to promote viral transcription and replication.
View Article and Find Full Text PDFJ Neurol
January 2025
Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Background: Neurologic symptoms seen in patients receiving immune checkpoint inhibitors (ICI) may not be entirely caused by immunotoxicity. We aim to highlight these confounding conditions through clinical cases to encourage early recognition and management.
Methods: We describe a series of seven cases from our institution that were treated with ICI and presented with Neurologic symptoms and were diagnosed with superimposed conditions beyond immunotoxicity.
J Infect Dis
January 2025
Department of Pathology, Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.
Background: Human papillomavirus (HPV) is a leading cause of cervical cancer, with 14 subtypes classified as high-risk human papillomavirus (HR-HPV). Despite the availability of vaccines, certain regions still experience limited access. Herpes simplex virus type II (HSV-II), a common sexually transmitted infection, is hypothesized to increase the risk of HR-HPV infections.
View Article and Find Full Text PDFInt Med Case Rep J
January 2025
Department of Oral Medicine, Faculty of Dentistry, Universitas Padjadjaran, Bandung, Indonesia.
Introduction: The Behçet's Disease Current Activity Form (BDCAF) is crucial for monitoring the progression and treatment efficacy of Behçet's Disease (BD), an autoimmune disorder that can be triggered or exacerbated by viral infections. Herpes simplex virus type 1 (HSV-1) has long been recognized as a potential trigger for BD, as it can induce systemic inflammation and exacerbate symptoms. In contrast, Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) has recently emerged and may also initiate or worsen BD symptoms.
View Article and Find Full Text PDFMed Mycol Case Rep
March 2025
Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran.
A 42-year-old woman was referred to an emergency department. She had an unresponsive corneal ulcer that was initially diagnosed as virus keratitis. Later, the microbiological studies revealed fungal keratitis.
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