Results 51 to 60 of about 538,389 (297)

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

Predicting Avian Influenza Co-Infection with H5N1 and H9N2 in Northern Egypt. [PDF]

, 2016
Human outbreaks with avian influenza have been, so far, constrained by poor viral adaptation to non-avian hosts. This could be overcome via co-infection, whereby two strains share genetic material, allowing new hybrid strains to emerge. Identifying areas
Ali, Mohamed A, Carrel, Margaret, Kayali, Ghazi, Malanson, George P, Young, Sean G, Young, Sean G   +5 more
core   +2 more sources

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

FEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

Mapping the interaction sites of human and avian influenza A viruses and complement factor H

Frontiers in Immunology
The complement system is an innate immune mechanism against microbial infections. It involves a cascade of effector molecules that is activated via classical, lectin and alternative pathways.
Iman Rabeeah, Iman Rabeeah, Elizabeth Billington, Béatrice Nal, Jean-Remy Sadeyen, Ansar A. Pathan, Munir Iqbal, Nigel J. Temperton, Peter F. Zipfel, Peter F. Zipfel, Christine Skerka, Uday Kishore, Uday Kishore, Holly Shelton   +13 more
doaj   +1 more source

Robust antiviral activity of commonly prescribed antidepressants against emerging coronaviruses: in vitro and in silico drug repurposing studies

Scientific Reports, 2022
During the current coronavirus disease 2019 (COVID-19) pandemic, symptoms of depression are commonly documented among both symptomatic and asymptomatic quarantined COVID-19 patients.
Omnia Kutkat, Yassmin Moatasim, Ahmed A. Al‐Karmalawy, Hamada S. Abulkhair, Mokhtar R. Gomaa, Ahmed N. El-Taweel, Noura M. Abo Shama, Mohamed GabAllah, Dina B. Mahmoud, Ghazi Kayali, Mohamed A. Ali, Ahmed Kandeil, Ahmed Mostafa   +12 more
doaj   +1 more source

Potent Antiviral Activity of Vitamin B12 against Severe Acute Respiratory Syndrome Coronavirus 2, Middle East Respiratory Syndrome Coronavirus, and Human Coronavirus 229E

Microorganisms, 2023
Repurposing vitamins as antiviral supporting agents is a rapid approach used to control emerging viral infections. Although there is considerable evidence supporting the use of vitamin supplementation in viral infections, including severe acute ...
Yassmin Moatasim, Omnia Kutkat, Ahmed M. Osman, Mokhtar R. Gomaa, Faten Okda, Mohamed El Sayes, Mina Nabil Kamel, Mohamed Gaballah, Ahmed Mostafa, Rabeh El-Shesheny, Ghazi Kayali, Mohamed A. Ali, Ahmed Kandeil   +12 more
doaj   +1 more source

Viruses disrupt functions of human lymphocytes. Effects of measles virus and influenza virus on lymphocyte-mediated killing and antibody production. [PDF]

, 1984
We present experimental data that offer, in part, a better understanding of the immunosuppression that accompanies measles virus infection. We note that measles virus "silently" infects human lymphocytes and that the infection does not alter lymphocyte ...
Casali, P, Oldstone, MB, Rice, GP
core  

The evolution of human influenza viruses [PDF]

Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences, 2001
The evolution of influenza viruses results in (i) recurrent annual epidemics of disease that are caused by progressive antigenic drift of influenza A and B viruses due to the mutability of the RNA genome and (ii) infrequent but severe pandemics caused by the emergence of novel influenza A subtypes to which the population has little immunity. The latter
A J, Hay, V, Gregory, A R, Douglas, Y P, Lin   +3 more
openaire   +2 more sources

Dammarenediol II enhances etoposide‐induced apoptosis by targeting O‐GlcNAc transferase and Akt/GSK3β/mTOR signaling in liver cancer

Molecular Oncology, EarlyView.
Etoposide induces DNA damage, activating p53‐dependent apoptosis via caspase‐3/7, which cleaves PARP1. Dammarenediol II enhances this apoptotic pathway by suppressing O‐GlcNAc transferase activity, further decreasing O‐GlcNAcylation. The reduction in O‐GlcNAc levels boosts p53‐driven apoptosis and influences the Akt/GSK3β/mTOR signaling pathway ...
Jaehoon Lee, Byung‐Cheol Han, Gi‐Bang Koo, Jihye Park, Mijin Kwon, Young Bin Park, Jae‐Mun Choi, Seung‐Ho Lee, Sangho Roh   +8 more
wiley   +1 more source