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Research Output 1978 2018

2018
1 Citation (Scopus)

Editorial: HBsAg serum levels in HBeAg-negative chronic HBV infection—is it a matter of genotype?

Alexopoulou, A. & Karayiannis, P., 1 Jul 2018, In : Alimentary Pharmacology and Therapeutics. 48, 1, p. 102-103 2 p.

Research output: Contribution to journalEditorial

Quasispecies Changes with Distinctive Point Mutations in the Hepatitis C Virus Internal Ribosome Entry Site (IRES) Derived from PBMCs and Plasma

Mercuri, L., Thomson, E. C., Hughes, J. & Karayiannis, P., 1 Jan 2018, In : Advances in Virology. 2018, 4835252.

Research output: Contribution to journalArticle

Point Mutation
Hepacivirus
Blood Cells
5' Untranslated Regions
Polyproteins
2017
5 Citations (Scopus)

Demographic changes of hepatitis B virus infection in Iran for the last two decades

Shelmani, H. M., Karayiannis, P., Ashtari, S., Mahmanzar, M. A., Khanabadi, B., Modami, N., Gholipour, F., Zare, F. & Zali, M. R., 1 Jan 2017, In : Gastroenterology and Hepatology from Bed to Bench. 10, p. S38-S43

Research output: Contribution to journalArticle

Virus Diseases
Hepatitis B Surface Antigens
Iran
Hepatitis B virus
Demography
13 Citations (Scopus)

Hepatitis B virus: virology, molecular biology, life cycle and intrahepatic spread

Karayiannis, P., 2 Nov 2017, (Accepted/In press) In : Hepatology International. p. 1-9 9 p.

Research output: Contribution to journalArticle

Virology
Life Cycle Stages
Hepatitis B virus
Molecular Biology
Hepadnaviridae
2016
8 Citations (Scopus)

Hepatitis B viral replication influences the expression of natural killer cell ligands

Koumbi, L., Pollicino, T., Raimondo, G., Kumar, N., Karayiannis, P. & Khakoo, S. I., 2016, In : Annals of Gastroenterology. 29, 3, p. 348-357 10 p.

Research output: Contribution to journalArticle

Hepatitis B
Hepatitis B virus
Natural Killer Cells
Ligands
Lectins
5 Citations (Scopus)

Hepatitis B virus basal core promoter mutations show lower replication fitness associated with cccDNA acetylation status

Koumbi, L., Pollicino, T., Raimondo, G., Stampoulis, D., Khakoo, S. & Karayiannis, P., 15 Jul 2016, In : Virus Research. 220, p. 150-160 11 p.

Research output: Contribution to journalArticle

Acetylation
Hepatitis B virus
Mutation
Epigenomics
Histones
28 Citations (Scopus)

The epigenetic control of hepatitis B virus modulates the outcome of infection

Koumbi, L. & Karayiannis, P., 2016, In : Frontiers in Microbiology. 6, JAN, 01491.

Research output: Contribution to journalReview article

Hepatitis B virus
Epigenomics
Infection
Circular DNA
Virus Diseases
2015
1 Citation (Scopus)

Determinants involved in hepatitis C virus and GB virus B primate host restriction

Marnata, C., Saulnier, A., Mompelat, D., Krey, T., Cohen, L., Boukadida, C., Warter, L., Fresquet, J., Vasiliauskaite, I., Escriou, N., Cosset, F. L., Rey, F. A., Lanford, R. E., Karayiannis, P., Rose, N. J., Lavillette, D. & Martin, A., 2015, In : Journal of Virology. 89, 23, p. 12131-12144 14 p.

Research output: Contribution to journalArticle

Hepatitis GB virus B
GB virus B
Hepatitis C virus
Hepacivirus
Primates
32 Citations (Scopus)

Interferon-based combination treatment for chronic hepatitis C in the era of direct acting antivirals

Alexopoulou, A. & Karayiannis, P., 2015, In : Annals of Gastroenterology. 28, 1, p. 55-65 11 p.

Research output: Contribution to journalReview article

Chronic Hepatitis C
Interferons
Antiviral Agents
Ribavirin
Protease Inhibitors
2014
1 Citation (Scopus)

Changes in immune cell populations in the periphery and liver of GBV-B-infected and convalescent tamarins (Saguinus labiatus)

Hood, S. P., Mee, E. T., Perkins, H., Bowen, O., Dale, J. M., Almond, N. M., Karayiannis, P., Bright, H., Berry, N. J. & Rose, N. J., 22 Jan 2014, In : Virus Research. 179, 1, p. 93-101 9 p.

Research output: Contribution to journalArticle

Editorial: Welcome to the new, all electronic journal of viral hepatitis

Foster, G., Afdhal, N. H., Karayiannis, P. & Thursz, M., 2014, In : Journal of Viral Hepatitis. 22, 1, p. 1 1 p.

Research output: Contribution to journalEditorial

Editorial

Foster, G., Karayiannis, P. & Afdhal, N., Feb 2014, In : Journal of Viral Hepatitis. 21, 2, p. 77 1 p.

Research output: Contribution to journalEditorial

26 Citations (Scopus)

HBeaG negative variants and their role in the natural history of chronic hepatitis B virus infection

Alexopoulou, A. & Karayiannis, P., 2014, In : World Journal of Gastroenterology. 20, 24, p. 7644-7652 9 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

HCV NS5A co-operates with PKR in modulating HCV IRES-dependent translation

Karamichali, E., Foka, P., Tsitoura, E., Kalliampakou, K., Kazazi, D., Karayiannis, P., Georgopoulou, U. & Mavromara, P., 2014, In : Infection, Genetics and Evolution. 26, p. 113-122 10 p.

Research output: Contribution to journalArticle

hepatitis
Hepatitis C virus
ribosomes
Hepacivirus
translation (genetics)
8 Citations (Scopus)

Treatment options beyond IFNα and NUCs for chronic HBV infection: Expectations for tomorrow

Baltayiannis, G. & Karayiannis, P., 1 Nov 2014, In : Journal of Viral Hepatitis. 21, 11, p. 753-761 9 p.

Research output: Contribution to journalReview article

Hepatitis B e Antigens
Chronic Hepatitis B
Virus Diseases
Hepatitis B virus
Antiviral Agents
2013
23 Citations (Scopus)

Dental treatment as a risk factor for hepatitis B and C viral infection. A review of the recent literature

Mahboobi, N., Porter, S. R., Karayiannis, P. & Alavian, S. M., 2013, In : Journal of Gastrointestinal and Liver Diseases. 22, 1, p. 79-86 8 p.

Research output: Contribution to journalArticle

Virus Diseases
Hepatitis C
Hepatitis B
Hepacivirus
Tooth
2 Citations (Scopus)

Molecular variants of hepatitis B surface antigen (HBsAg)

Jazayeri, S. M., Alavian, S. M., Dindoost, P., Thomas, H. C. & Karayiannis, P., 29 Jul 2013, Viral Hepatitis: Fourth Edition. wiley, p. 107-126 20 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Hepatitis B Surface Antigens
Epitopes
Hepatitis B virus
Vaccines
Genotype

Molecular variants of the precore, core, and core promoter regions of hepatitis B virus, and their clinical significance

Karayiannis, P., Carman, W. F. & Thomas, H. C., 29 Jul 2013, Viral Hepatitis: Fourth Edition. wiley, p. 127-142 16 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Hepatitis B e Antigens
Genetic Promoter Regions
Hepatitis B virus
Hepadnaviridae
Virus Replication
4 Citations (Scopus)

Oral conditions associated with Hepatitis C virus infection

Alavian, S. M., Mahboobi, N., Mahboobi, N. & Karayiannis, P., Nov 2013, In : Saudi Journal of Gastroenterology. 19, 6, p. 245-251 7 p.

Research output: Contribution to journalReview article

Virus Diseases
Hepacivirus
Cryoglobulinemia
Polyarteritis Nodosa
Lichen Planus
2012
23 Citations (Scopus)

Oral fluid and hepatitis A, B and C: A literature review

Mahboobi, N., Porter, S. R., Karayiannis, P. & Alavian, S. M., Aug 2012, In : Journal of Oral Pathology and Medicine. 41, 7, p. 505-516 12 p.

Research output: Contribution to journalArticle

33 Citations (Scopus)

Seroepidemiology of hepatitis A and E virus infections in Tehran, Iran: A population based study

Mohebbi, S. R., Rostami Nejad, M., Tahaei, S. M. E., Pourhoseingholi, M. A., Habibi, M., Azimzadeh, P., Naghoosi, H., Karayiannis, P. & Zali, M. R., Sep 2012, In : Transactions of the Royal Society of Tropical Medicine and Hygiene. 106, 9, p. 528-531 4 p.

Research output: Contribution to journalArticle

Hepatitis E virus
Hepatitis A virus
Virus Diseases
Iran
Population
2011

Enterically Transmitted Viral Hepatitis: Hepatitis A and Hepatitis E

Karayiannis, P. & Thomas, H. C., 5 May 2011, Sherlock's Diseases of the Liver and Biliary System, 12th Edition. Wiley-Blackwell, p. 353-366 14 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Hepatitis A Vaccines
Hepatitis E
Hepatitis E virus
Hepatitis A virus
Hepatitis A
56 Citations (Scopus)

Hepatitis B surface antigen: Relation to hepatitis B replication parameters in HBeAg-negative chronic hepatitis B

Manesis, E. K., Papatheodoridis, G. V., Tiniakos, D. G., Hadziyannis, E. S., Agelopoulou, O. P., Syminelaki, T., Papaioannou, C., Nastos, T. & Karayiannis, P., Jul 2011, In : Journal of Hepatology. 55, 1, p. 61-68 8 p.

Research output: Contribution to journalArticle

Hepatitis B e Antigens
Chronic Hepatitis B
Hepatitis B Surface Antigens
Hepatitis B
Hepatitis B virus
114 Citations (Scopus)

Predicting spontaneous clearance of acute hepatitis C virus in a large cohort of HIV-1-infected men

Thomson, E. C., Fleming, V. M., Main, J., Klenerman, P., Weber, J., Eliahoo, J., Smith, J., McClure, M. O. & Karayiannis, P., Jun 2011, In : Gut. 60, 6, p. 837-845 9 p.

Research output: Contribution to journalArticle

Hepacivirus
HIV-1
CD4 Lymphocyte Count
T-Lymphocytes
HIV
1 Citation (Scopus)

The detection of hepatitis viruses.

Karayiannis, P., 2011, In : Methods in molecular biology (Clifton, N.J.). 665, p. 79-100 22 p.

Research output: Contribution to journalArticle

2010
28 Citations (Scopus)

Dynamic coinfection with multiple viral subtypes in acute hepatitis C

Smith, J. A., Aberle, J. H., Fleming, V. M., Ferenci, P., Thomson, E. C., Karayiannis, P., McLean, A. R., Holzmann, H. & Klenerman, P., 15 Dec 2010, In : Journal of Infectious Diseases. 202, 12, p. 1770-1779 10 p.

Research output: Contribution to journalArticle

Hepatitis C
Coinfection
Hepacivirus
Virus Diseases
Viral Load
13 Citations (Scopus)
alpha-Fetoproteins
Hepatitis B virus
Antiviral Agents
Hepatocellular Carcinoma
Therapeutics
35 Citations (Scopus)

Steatosis and steatohepatitis in postmortem material from Northwestern Greece

Zois, C. D., Baltayiannis, G. H., Bekiari, A., Goussia, A., Karayiannis, P., Doukas, M., Demopoulos, D., Mitsellou, A., Vougiouklakis, T., Mitsi, V. & Tsianos, E. V., 21 Aug 2010, In : World Journal of Gastroenterology. 16, 31, p. 3944-3949 6 p.

Research output: Contribution to journalArticle

Greece
Fatty Liver
Cause of Death
Autopsy
Liver
2009
13 Citations (Scopus)

Core mutations in patients with acute episodes of chronic HBV infection are associated with the emergence of new immune recognition sites and the development of high IgM Anti-HBc index values

Alexopoulou, A., Baltayiannis, G., Eroglu, C., Nastos, T., Dourakis, S. P., Archimandritis, A. J. & Karayiannis, P., Jan 2009, In : Journal of Medical Virology. 81, 1, p. 34-41 8 p.

Research output: Contribution to journalArticle

Hepatitis B e Antigens
Chronic Hepatitis B
Virus Diseases
Hepatitis B virus
B-Lymphocyte Epitopes
122 Citations (Scopus)

Delayed anti-HCV antibody response in HIV-positive men acutely infected with HCV

Thomson, E. C., Nastouli, E., Main, J., Karayiannis, P., Eliahoo, J., Muir, D. & McClure, M. O., 2 Jan 2009, In : AIDS. 23, 1, p. 89-93 5 p.

Research output: Contribution to journalArticle

Hepatitis C Antibodies
Hepacivirus
Antibody Formation
HIV
Virus Diseases
10 Citations (Scopus)

Diagnosing acute hepatitis C in HIV-infected patients: Nucleic acid testing compared with antibody and antigen-antibody detecting methods

Nastouli, E., Thomson, E. C., Karayiannis, P., Main, J., McClure, M. & Muir, D., Jan 2009, In : Journal of Clinical Virology. 44, 1, p. 78-80 3 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)

Long-term outcome of hepatitis B and hepatitis C virus co-infection and single HBV infection acquired in youth

Zampino, R., Marrone, A., Merola, A., Trani, B., Cirillo, G., Karayiannis, P., Coppola, N., Zappalà, R., Utili, R., Ruggiero, G. & Adinolfi, L. E., Dec 2009, In : Journal of Medical Virology. 81, 12, p. 2012-2020 9 p.

Research output: Contribution to journalArticle

Virus Diseases
Hepatitis B
Coinfection
Hepacivirus
Infection
2008
87 Citations (Scopus)

Effect of basal core promoter and pre-core mutations on hepatitis B virus replication

Jammeh, S., Tavner, F., Watson, R., Thomas, H. C. & Karayiannis, P., Apr 2008, In : Journal of General Virology. 89, 4, p. 901-909 9 p.

Research output: Contribution to journalArticle

Virus Replication
Hepatitis B virus
Hepatitis B e Antigens
Mutation
Genetic Promoter Regions

Journal of Viral Hepatitis: Editorial

Foster, G., Karayiannis, P., Lok, A. & Thomas, H., Jan 2008, In : Journal of Viral Hepatitis. 15, 1, p. 1 1 p.

Research output: Contribution to journalEditorial

7 Citations (Scopus)

NICE guidelines and a treatment algorithm for the management of chronic hepatitis B: A review of 12 years experience in west London

Kennedy, P. T. F., Lee, H. C., Jeyalingam, L., Malik, R., Karayiannis, P., Muir, D., Main, J., Thursz, M., Goldin, R., Smith, B., Brown, A. & Thomas, H. C., 2008, In : Antiviral Therapy. 13, 8, p. 1067-1076 10 p.

Research output: Contribution to journalReview article

Chronic Hepatitis B
National Institutes of Health (U.S.)
Guidelines
Hepatitis B e Antigens
Fibrosis
4 Citations (Scopus)

Restricted quasispecies variation following infection with the GB virus B

McGarvey, M. J., Iqbal, M., Nastos, T. & Karayiannis, P., Jul 2008, In : Virus Research. 135, 1, p. 181-186 6 p.

Research output: Contribution to journalArticle

GB virus B
Infection
5' Untranslated Regions
Amino Acid Substitution
Hepacivirus
32 Citations (Scopus)

Systematic review: Hepatic fibrosis - Regression with therapy

Zois, C. D., Baltayiannis, G. H., Karayiannis, P. & Tsianos, E. V., Nov 2008, In : Alimentary Pharmacology and Therapeutics. 28, 10, p. 1175-1187 13 p.

Research output: Contribution to journalReview article

Fibrosis
Liver
Hepatic Stellate Cells
Elasticity Imaging Techniques
Therapeutics
7 Citations (Scopus)

Tailored regimen of interferon alpha for HBeAg-positive chronic hepatitis B: A prospective controlled study

Luo, K., Mao, Q., Karayiannis, P., Liu, D., Liu, Z., Zhou, Y., Feng, X., Zhu, Y., Guo, Y., Jiang, R., Zhou, F., Peng, J. & Hou, J., Sep 2008, In : Journal of Viral Hepatitis. 15, 9, p. 684-689 6 p.

Research output: Contribution to journalArticle

2007
6 Citations (Scopus)

Hepatitis B Surface Antigen (HBsAg) Variants

Carman, W. F., Jazayeri, M., Basuni, A., Thomas, H. C. & Karayiannis, P., 26 Oct 2007, Viral Hepatitis. Blackwell Publishing Ltd, p. 225-241 17 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Journal of Viral Hepatitis: Editorial

Thomas, H. C., Foster, G. R. & Karayiannis, P., Jan 2007, In : Journal of Viral Hepatitis. 14, 1, p. 1 1 p.

Research output: Contribution to journalEditorial

Journal of Viral Hepatitis: Editorial

Foster, G. R., Karayiannis, P., Lok, A. & Thomas, H. C., Sep 2007, In : Journal of Viral Hepatitis. 14, 9, p. 599 1 p.

Research output: Contribution to journalEditorial

1 Citation (Scopus)

Molecular Variations in the Core Promoter, Precore and Core Regions of Hepatitis B Virus, and their Clinical Significance

Karayiannis, P., Carman, W. F. & Thomas, H. C., 26 Oct 2007, Viral Hepatitis. Blackwell Publishing Ltd, p. 242-262 21 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

9 Citations (Scopus)

Replicative competence of the T131I, K141E, and G145R surface variants of hepatitis B virus

Jammeh, S., Thomas, H. C. & Karayiannis, P., 2007, In : Journal of Infectious Diseases. 196, 7, p. 1010-1013 4 p.

Research output: Contribution to journalArticle

Hepatitis B virus
Mental Competency
Satellite Viruses
DNA
Amino Acid Substitution
2006
11 Citations (Scopus)

Detection of a hepatitis B surface antigen variant emerging in a patient with chronic lymphocytic leukaemia treated with fludarabine

Alexopoulou, A., Dourakis, S. P., Pandelidaki, H., Archimandritis, A. J. & Karayiannis, P., Aug 2006, In : Journal of Medical Virology. 78, 8, p. 1043-1046 4 p.

Research output: Contribution to journalArticle

B-Cell Chronic Lymphocytic Leukemia
Hepatitis B Surface Antigens
Hepatitis B virus
Hepatitis B e Antigens
DNA
10 Citations (Scopus)

Established and emerging therapies for the treatment of viral hepatitis

Forton, D. & Karayiannis, P., May 2006, In : Digestive Diseases. 24, 1-2, p. 160-173 14 p.

Research output: Contribution to journalReview article

Hepacivirus
Hepatitis
Lamivudine
Ribavirin
Chronic Hepatitis B
24 Citations (Scopus)

Hepatitis B virus reactivation in patients receiving chemotherapy for malignancies: Role of precore stop-codon and basic core promoter mutations

Alexopoulou, A., Theodorou, M., Dourakis, S. P., Karayiannis, P., Sagkana, E., Papanikolopoulos, K. & Archimandritis, A. J., Sep 2006, In : Journal of Viral Hepatitis. 13, 9, p. 591-596 6 p.

Research output: Contribution to journalArticle

Terminator Codon
Hepatitis B virus
Hepatitis B Surface Antigens
Hepatitis B e Antigens
Drug Therapy
2 Citations (Scopus)

Interferon-α therapy in HBeAg-negative chronic hepatitis B: A long-term prospective study from north-western Greece

Baltayiannis, G., Katsanos, K., Karayiannis, P. & Tsianos, E. V., Aug 2006, In : Alimentary Pharmacology and Therapeutics. 24, 3, p. 525-533 9 p.

Research output: Contribution to journalArticle

Hepatitis B e Antigens
Greece
Chronic Hepatitis B
Interferons
Prospective Studies

Journal of Viral Hepatitis: Editorial

Foster, G. R., Karayiannis, P. & Thomas, H. C., Jan 2006, In : Journal of Viral Hepatitis. 13, 1, p. 1 1 p.

Research output: Contribution to journalEditorial

2005
8 Citations (Scopus)

Clinical reactivation during lamivudine treatment correlates with mutations in the precore/core promoter and polymerase regions of hepatitis B virus in patients with anti-hepatitis B e-positive chronic hepatitis

Marrone, A., Zampino, R., Karayannis, P., Cirillo, G., Cesaro, G., Guerrera, B., Ricciotti, R., Miraglia Del Giudice, E., Utili, R., Adinolfi, L. E. & Ruggiero, G., 15 Oct 2005, In : Alimentary Pharmacology and Therapeutics. 22, 8, p. 707-714 8 p.

Research output: Contribution to journalArticle

Lamivudine
Chronic Hepatitis
Hepatitis B
Genetic Promoter Regions
Hepatitis B virus