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I. Liappas · SciRah

Researcher profile · Semantic Scholar

I. Liappas

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I. Liappas — researcher profile on SciRah

h-index: 25
Works: 87
Citations: 1,684

Most-cited papers

Cytokine production in bipolar affective disorder patients under lithium treatment.
F. Boufidou, C. Nikolaou, B. Alevizos, I. Liappas +1 more
2004Journal of Affective Disorders134 citations
Semantic Scholar
Comparison of cognitive performance among different age groups in patients with obstructive sleep apnea
M. Alchanatis, N. Zias, N. Deligiorgis, I. Liappas +3 more
2008Sleep and Breathing91 citations
Semantic Scholar
Depression, physical activity, energy consumption, and quality of life in OSA patients before and after CPAP treatment
C. Diamanti, Effrosyni D. Manali, M. Ginieri-Coccossis, K. Vougas +5 more
2013Sleep and Breathing87 citations
Semantic Scholar
Depression, anxiety and general psychopathology in breast cancer patients: a cross-sectional control study.
M. Fafouti, T. Paparrigopoulos, Y. Zervas, A. Rabavilas +3 more
2010In Vivo74 citations
Semantic Scholar
Treatment of alcohol dependence with low-dose topiramate: an open-label controlled study
T. Paparrigopoulos, E. Tzavellas, D. Karaiskos, G. Kourlaba +1 more
2011BMC Psychiatry65 citations Open access
Semantic Scholar
Elevation of plasma concentration of adhesion molecules in late‐life depression
N. Dimopoulos, C. Piperi, Aristea Salonicioti, C. Mitsonis +3 more
2006International Journal of Geriatric Psychiatry53 citations
Semantic Scholar
Greek Version of the Connor-Davidson Resilience Scale: Psychometric Properties in a Sample of 546 Subjects
Evdoxia Tsigkaropoulou, A. Douzenis, Nikolaos Tsitas, P. Ferentinos +2 more
2018In Vivo52 citations Open access
Semantic Scholar
Long-term abstinence syndrome in heroin addicts: indices of P300 alterations associated with a short memory task.
C. Papageorgiou, I. Liappas, E. Ventouras, C. Nikolaou +3 more
2004Progress in Neuro-psychopharmacology and Biological Psychiatry52 citations
Semantic Scholar
Indices of low-grade chronic inflammation correlate with early cognitive deterioration in an elderly Greek population.
N. Dimopoulos, C. Piperi, Aristea Salonicioti, Panagiotis A. Mitropoulos +4 more
2006Neuroscience Letters51 citations
Semantic Scholar
Determinants of stigma in a cohort of hellenic patients suffering from multiple sclerosis: a cross-sectional study
M. Anagnostouli, Serafeim Katsavos, A. Artemiadis, M. Zacharis +5 more
2016BMC Neurology48 citations Open access
Semantic Scholar
The Diagnostic Value of Cerebrospinal Fluid Tau Protein in Dementing and Nondementing Neuropsychiatric Disorders
G. Paraskevas, E. Kapaki, I. Liappas, I. Theotoka +3 more
2005Journal of Geriatric Psychiatry and Neurology43 citations
Semantic Scholar
Vitamin B12 Levels in Alzheimer's Disease: Association with Clinical Features and Cytokine Production
A. Politis, P. Olgiati, P. Malitas, D. Albani +13 more
2010Journal of Alzheimer's Disease42 citations
Semantic Scholar
Quality of life in mentally ill, physically ill and healthy individuals: The validation of the Greek version of the World Health Organization Quality of Life (WHOQOL-100) questionnaire
M. Ginieri-Coccossis, Eugenia S. Triantafillou, V. Tomaras, I. Liappas +2 more
2009Annals of General Psychiatry42 citations Open access
Semantic Scholar
Association between Sirtuin 2 gene rs10410544 polymorphism and depression in Alzheimer’s disease in two independent European samples
S. Porcelli, R. Salfi, A. Politis, A. Atti +19 more
2013Journal of neural transmission41 citations
Semantic Scholar
Agomelatine and sertraline for the treatment of depression in type 2 diabetes mellitus
D. Karaiskos, E. Tzavellas, Ioannis Ilias, I. Liappas +1 more
2013International journal of clinical practice38 citations Open access
Semantic Scholar
Do Obsessive-Compulsive Patients and Abstinent Heroin Addicts Share a Common Psychophysiological Mechanism?
C. Papageorgiou, A. Rabavilas, I. Liappas, C. Stefanis
2003Neuropsychobiology38 citations
Semantic Scholar
Abnormal P600 in heroin addicts with prolonged abstinence elicited during a working memory test
C. Papageorgiou, I. Liappas, P. Asvestas, C. Vasios +5 more
2001NeuroReport38 citations
Semantic Scholar
A Longitudinal Study of Alterations of Hippocampal Volumes and Serum BDNF Levels in Association to Atypical Antipsychotics in a Sample of First-Episode Patients with Schizophrenia
E. Rizos, M. Papathanasiou, P. Michalopoulou, E. Laskos +7 more
2014PLoS ONE35 citations Open access
Semantic Scholar
Preliminary Report of a Validation Study of Instrumental Activities of Daily Living in a Greek Sample
I. Theotoka, E. Kapaki, Vasileios Vagenas, I. Ilias +2 more
2007Perceptual and Motor Skills35 citations
Semantic Scholar
Comorbidity of personality disorders with alcohol abuse.
E. Mellos, I. Liappas, T. Paparrigopoulos
2010In Vivo34 citations
Semantic Scholar
The diagnostic value of tau protein, β‐amyloid (1–42) and their ratio for the discrimination of alcohol‐related cognitive disorders from Alzheimer's disease in the early stages
E. Kapaki, I. Liappas, G. Paraskevas, I. Theotoka +1 more
2005International Journal of Geriatric Psychiatry34 citations
Semantic Scholar
APOE epsilon‐4 allele and cytokine production in Alzheimer's disease
P. Olgiati, A. Politis, P. Malitas, D. Albani +13 more
2010International Journal of Geriatric Psychiatry33 citations
Semantic Scholar
Detecting changes in quality of life and psychiatric symptomatology following an in-patient detoxification programme for alcohol-dependent individuals: the use of WHOQOL-100.
M. Ginieri-Coccossis, I. Liappas, E. Tzavellas, E. Triantafillou +1 more
2007In Vivo31 citations
Semantic Scholar
Serum cytokine concentrations in alcohol-dependent individuals without liver disease.
Chryssoula Nicolaou, S. Chatzipanagiotou, Dimitrios Tzivos, E. Tzavellas +2 more
2004Alcohol31 citations
Semantic Scholar
Neuropsychological assessment of cognitive function in chronic alcohol-dependent patients and patients with Alzheimer's disease.
I. Liappas, I. Theotoka, E. Kapaki, I. Ilias +2 more
2007In Vivo27 citations
Semantic Scholar
Risperidone-induced acute eosinophilic pneumonia.
E. Rizos, Evdoxia Tsigkaropoulou, P. Lambrou, Maria Kanakaki +3 more
2013In Vivo25 citations
Semantic Scholar
An open pilot study of tiagabine in alcohol dependence: tolerability and clinical effects
T. Paparrigopoulos, E. Tzavellas, D. Karaiskos, P. Malitas +1 more
2010Journal of Psychopharmacology25 citations
Semantic Scholar
Lack of Association between Interleukin-1 alpha rs1800587 Polymorphism and Alzheimer's Disease in Two Independent European Samples
A. Serretti, P. Olgiati, A. Politis, P. Malitas +18 more
2009Journal of Alzheimer's Disease25 citations
Semantic Scholar
Complete recovery from undertreated Wernicke-Korsakoff syndrome following aggressive thiamine treatment.
T. Paparrigopoulos, E. Tzavellas, D. Karaiskos, A. Kouzoupis +1 more
2010In Vivo22 citations
Semantic Scholar
Oxidative damage to plasma proteins in patients with chronic alcohol dependence: the effect of smoking.
E. Kapaki, I. Liappas, L. Lyras, G. Paraskevas +6 more
2007In Vivo22 citations
Semantic Scholar
Interrelationship of hepatic function, thyroid activity and mood status in alcohol-dependent individuals.
I. Liappas, C. Piperi, P. Malitas, E. Tzavellas +7 more
2006In Vivo21 citations
Semantic Scholar
Percutaneous Endoscopic Gastrostomy: Adequacy and Quality of Information Given to Decision-Makers
S. Ladas, Konstantinos Triantafyllou, I. Liappas, M. Hatziargyriou +4 more
2003Digestive Diseases20 citations
Semantic Scholar
Effect of alcohol detoxification on serum S-100B levels of alcohol-dependent individuals.
I. Liappas, E. Tzavellas, Caterina Kariyannis, C. Piperi +3 more
2006In Vivo16 citations
Semantic Scholar
Epistasis between IL1A, IL1B, TNF, HTR2A, 5-HTTLPR and TPH2 Variations Does Not Impact Alcohol Dependence Disorder Features
A. Drago, I. Liappas, C. Petio, D. Albani +13 more
2009International Journal of Environmental Research and Public Health15 citations Open access
Semantic Scholar
Depression and Social Phobia Secondary to Alcohol Dependence
P. Olgiati, I. Liappas, P. Malitas, C. Piperi +7 more
2008Neuropsychobiology15 citations
Semantic Scholar
Effects of SORL1 gene on Alzheimer's disease. Focus on gender, neuropsychiatric symptoms and pro-inflammatory cytokines.
P. Olgiati, A. Politis, D. Albani, S. Rodilossi +14 more
2013Current Alzheimer Research14 citations
Semantic Scholar
Association of SORL1 alleles with late-onset Alzheimer's disease. findings from the GIGAS_LOAD study and mega-analysis.
P. Olgiati, A. Politis, D. Albani, S. Rodilossi +17 more
2012Current Alzheimer Research14 citations
Semantic Scholar
Personality dimensions could explain resilience in patients with eating disorders
Evdoxia Tsigkaropoulou, P. Ferentinos, A. Karavia, R. Gournellis +4 more
2020Eating and Weight Disorders13 citations
Semantic Scholar
Vitamin B12 and hepatic enzyme serum levels correlate with interleukin-6 in alcohol-dependent individuals without liver disease.
I. Liappas, Chryssoula Nicolaou, S. Chatzipanagiotou, E. Tzavellas +5 more
2007Clinical Biochemistry12 citations
Semantic Scholar
Interleukin-1 alpha and beta, TNF-alpha and HTTLPR gene variants study on alcohol toxicity and detoxification outcome.
A. Serretti, I. Liappas, L. Mandelli, D. Albani +10 more
2006Neuroscience Letters12 citations
Semantic Scholar
Three Cases of Zolpidem Dependence Treated with Fluoxetine: The Serotonin Hypothesis
I. Liappas, Petros N. Malitass, Nikolaos P. Dimopouloss, Olympia E. Gitsas +3 more
2003World Journal of Biological Psychiatry12 citations
Semantic Scholar
Alzheimer’s Disease and Neurotransmission Gene Variants: Focus on Their Effects on Psychiatric Comorbidities and Inflammatory Parameters
S. Porcelli, M. Calabrò, C. Crisafulli, A. Politis +7 more
2019Neuropsychobiology11 citations
Semantic Scholar
Acute Necrotizing Pancreatitis Following Olanzapine Treatment and 759C/T Polymorphism of HTR2C Gene: A Case Report.
E. Rizos, K. Tournikioti, Evangelos Alevyzakis, M. Peppa +6 more
2015In Vivo11 citations
Semantic Scholar
TPH2 gene variants and anxiety during alcohol detoxification outcome.
A. Serretti, I. Liappas, L. Mandelli, D. Albani +12 more
2009Psychiatry Research11 citations
Semantic Scholar
Alteration of biological markers in alcohol-dependent individuals without liver disease during the detoxification therapy.
S. Chatzipanagiotou, Maria Kalykaki, E. Tzavellas, D. Karaiskos +7 more
2010In Vivo10 citations
Semantic Scholar
The effect of hypoxemic resuscitation of hemorrhagic shock on hemodynamic stabilization and inflammatory response: a pilot study in a rat experimental model.
E. Douzinas, O. Livaditi, A. Xiarchos, E. Giamarellos-Bourboulis +5 more
2006Journal of Trauma10 citations
Semantic Scholar
Clozapine Associated with Autoimmune Reaction, Fever and Low Level Cardiotoxicity - A Case Report.
Charilaos Gerasimou, Georgia Phaedra Vitali, G. Vavougios, Charalabos Papageorgiou +4 more
2017In Vivo9 citations Open access
Semantic Scholar
Intranasal zaleplon abuse.
T. Paparrigopoulos, E. Tzavellas, D. Karaiskos, I. Liappas
2008American Journal of Psychiatry9 citations
Semantic Scholar
Polymorphisms of the CD14 genes are associated with susceptibility to alcoholic liver disease in Greek patients.
Vasiliki Nezi, M. Deutsch, M. Gazouli, A. Alexopoulou +3 more
2013Alcoholism: Clinical and Experimental Research8 citations
Semantic Scholar
Dromokaition Psychiatric Hospital of Athens: from its establishment in 1887 to the era of deinstitutionalization
M. Fiste, D. Ploumpidis, C. Tsiamis, E. Poulakou-Rebelakou +1 more
2015Annals of General Psychiatry7 citations Open access
Semantic Scholar

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C. Piperi×15
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A. Kalofoutis×12
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T. Paparrigopoulos

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