Results 41 to 50 of about 9,189 (154)

Prevalence and Genotyping of Hepatitis D Virus among HBs Ag Positive Patients Referred to Besat Clinic, Kerman during 2012-2013

Majallah-i Dānishgāh-i ’Ulūm-i Pizishkī-i Shahīd Ṣadūqī Yazd, 2016
Introduction: Hepatitis D virus (HDV) is a 35 nm in diameter agent that depends on hepatitis B surface antigen in order to proliferate and accumulate. Infection with delta agent can occur spontaneously with hepatitis B virus infection and it cause acute ...
Kh Barkhordari, MJ Zahedi, AR Pouyandeh Ravan, H Molaie, SAM Arab-zadeh,   +5 more
doaj  

Antibiotic‐mediated immune modulation in periodontitis

Periodontology 2000, EarlyView.
Abstract Periodontitis is a chronic inflammatory disease affecting the supporting structures of the teeth. Although initiated by dysbiotic microbial communities, its progression is largely driven by the host's uncontrolled inflammatory response. While antibiotics have conventionally been employed in periodontitis therapy for their antimicrobial ...
Lina J. Suárez, R. M. Arce, Camila Pinheiro Furquim, Cristiane Gonçalves, Alpdogan Kantarci, Magda Feres, Nidia C. Castro dos Santos   +6 more
wiley   +1 more source

Hepatitis B virus infection with high HBsAg and undetectable DNA levels in untreated blood donors: Viral mechanisms and transfusion safety implications

Transfusion, EarlyView.
Abstract Background Blood donor screening occasionally identifies individuals with high HBV surface antigen (HBsAg) levels despite undetectable or extremely low HBV DNA. Molecular basis and transfusion risk of this discordant profile remain unclear. Study Design and Methods Seventy‐five blood donors with HBsAg >100 IU/mL and undetectable or very low ...
Maelenn Païline Delcourt, Marion Vermeulen, Aneta Kopacz, Manuela Miletic, Andrew Saville, Christoph Niederhauser, Jean‐Michel Pawlotsky, Syria Laperche, Daniel Candotti   +8 more
wiley   +1 more source

Histone H1e interacts with small hepatitis delta antigen and affects hepatitis delta virus replication

Virology, 2008
Hepatitis delta virus (HDV) encodes two isoforms of delta antigens (HDAgs). The small form of HDAg (SHDAg) is required for HDV RNA replication, while the large form of HDAg (LHDAg) is required for viral assembly. Using tandem affinity purification method combined with mass spectrometry, we found that linker histone H1e bound to SHDAg.
Lee, Cha-Ze, Sheu, Jin-Chuan
openaire   +2 more sources

Cumulative Antigen Suppression Reduces Clonal Plasma Cell Evolution in Gaucher Disease

American Journal of Hematology, Volume 101, Issue 9, Page 2197-2213, September 2026.
ABSTRACT Chronic antigenic stimulation is implicated in the pathogenesis of monoclonal gammopathy and multiple myeloma, yet longitudinal human evidence linking sustained antigen exposure to modifiable clonal plasma cell evolution remains limited. Gaucher disease (GD), caused by biallelic GBA1 pathogenic variants, is characterized by accumulation of ...
Noor Ul Ain, Noffar Bar, Lilu Guo, Katherine Klinger, Punita Gupta, Atta Ur Rahman, Ruhua Yang, Yanhong Deng, Natalia Neparidze, Shiny Nair, Pramod K. Mistry   +10 more
wiley   +1 more source

Transcriptomic signatures reveal systemic adaptations and immune modulation in response to training and competitive racing in horses

Equine Veterinary Journal, Volume 58, Issue 5, Page 1413-1444, September 2026.
Abstract Background The molecular mechanisms underlying adaptation to physical exertion and racing stress in horses remain incompletely understood. Peripheral blood transcriptomics offers a minimally invasive method to monitor systemic responses to exercise and identify biomarkers of adaptation or overload. Objectives To evaluate transcriptomic changes
Izabela Dąbrowska, Jowita Grzędzicka‐Agko, Paula Kiełbik, Michał Trela, Olga Witkowska‐Piłaszewicz   +4 more
wiley   +1 more source

Characterization of RNA-binding domains of hepatitis delta antigen

Journal of General Virology, 1993
Hepatitis delta antigen (HDAg), the only protein encoded by the hepatitis delta virus (HDV), binds specifically genomic and antigenomic strands of the HDV RNA. In a previous study, three recombinant HDAg subdomains were synthesized, covering residues 11 to 78, 79 to 163 and 164 to 212, and only the middle domain was shown to be responsible for the ...
F, Poisson, P, Roingeard, A, Baillou, F, Dubois, F, Bonelli, R A, Calogero, A, Goudeau   +6 more
openaire   +2 more sources

Mutational analysis of delta antigen: effect on assembly and replication of hepatitis delta virus [PDF]

Journal of Virology, 1994
Hepatitis delta virus requires a helper function from hepatitis B virus for packaging, release, and infection of hepatocytes. The assembly of large delta antigen (HDAg) is mediated by copackaging with the small surface antigen of hepatitis B virus (HBsAg), and the assembly of small HDAg requires interactions with large HDAg.
M F, Chang, C J, Chen, S C, Chang
openaire   +2 more sources

Long‐Acting Cabotegravir/Rilpivirine Reduces Immune‐Activation and ‐Senescence in People With HIV With CMV Co‐Infection

Immunology, Volume 179, Issue 1, Page 138-148, September 2026.
This study investigates the impact of switching to long‐acting (LA) injectable cabotegravir and rilpivirine (CAB/RPV‐LA) on immune‐activation and ‐senescence in people with HIV (PWH). Thirty‐seven PWH switching to CAB/RPV‐LA and nine continuing oral ART were analysed over 72 weeks. LA therapy led to significant reductions in activation T and senescence
Mariasilvia Guardiani, Eeva Tortellini, Anna Carraro, Maria Antonella Zingaropoli, Lorenzo Ansaldo, Alessandra Grimaldi, Serena Vita, Federica Dominelli, Fabio Mengoni, Caterina Pasquazzi, Ombretta Turriziani, Maria Rosa Ciardi, Vincenzo Vullo, Claudio Maria Mastroianni, Raffaella Marocco, Cosmo Del Borgo, Miriam Lichtner   +16 more
wiley   +1 more source

Characterization of the Phosphorylated Forms and the Phosphorylated Residues of Hepatitis Delta Virus Delta Antigens [PDF]

Journal of Virology, 1999
ABSTRACT Hepatitis delta virus (HDV) replication requires both the cellular RNA polymerase and one virus-encoded protein, small delta antigen (S-HDAg). S-HDAg has been shown to be a phosphoprotein, but its phosphorylation status is not yet clear. In this study, we employed three methods to address this question.
J J, Mu, H L, Wu, B L, Chiang, R P, Chang, D S, Chen, P J, Chen   +5 more
openaire   +2 more sources