Michail Vailas

Dr. Michail Vailas

orcid

Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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4 October 2020 in Cancers
Verified
Journal Article
Open access
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Christo KOLEChristo KOLE
Christo KOLE
Nikolaos CharalampakisNikolaos Charalampakis
Nikolaos Charalampakis
STSergios Tsakatikas
Sergios Tsakatikas
MVMichail Vailas
Michail Vailas
Dimitrios MorisDimitrios Moris
Dimitrios Moris
DIMITRIOS SCHIZASDIMITRIOS SCHIZAS
DIMITRIOS SCHIZAS
Hepatocellular carcinoma (HCC) is one of one of the most frequent liver cancers and the fourth leading cause of cancer-related mortality worldwide. Current treatment options such as surgery, neoadjuvant chemoradiotherapy, liver transplantation, and radiofrequency ablation will benefit only a very small percentage of patients. Immunotherapy is a novel treatment approach representing an effective and promising option against several types of cancer. The aim of our study is to present the currently ongoing clinical trials and to evaluate the efficacy of immunotherapy in HCC. In this paper, we demonstrate that combination of different immunotherapies or immunotherapy with other modalities results in better overall survival (OS) and progression-free survival (PFS) compared to single immunotherapy agent. Another objective of this paper is to demonstrate and highlight the importance of tumor microenvironment as a predictive and prognostic marker and its clinical implications in immunotherapy response.

Verified
Journal Article
Open access
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EKEvgenia Kotsifa
Evgenia Kotsifa
CVChrysovalantis Vergadis
Chrysovalantis Vergadis
MVMichail Vailas
Michail Vailas
Nikolaos MachairasNikolaos Machairas
Nikolaos Machairas
Stylianos KykalosStylianos Kykalos
Stylianos Kykalos
DIMITRIOS SCHIZASDIMITRIOS SCHIZAS
DIMITRIOS SCHIZAS
Hepatocellular carcinoma (HCC) is the most common primary liver malignancy. It is principally associated with liver cirrhosis and chronic liver disease. The major risk factors for the development of HCC include viral infections (HBV, HCV), alcoholic liver disease (ALD,) and non-alcoholic fatty liver disease (NAFLD). The optimal treatment choice is dictated by multiple variables such as tumor burden, liver function, and patient’s health status. Surgical resection, transplantation, ablation, transarterial chemoembolization (TACE), and systemic therapy are potentially useful treatment strategies. TACE is considered the first-line treatment for patients with intermediate stage HCC. The purpose of this review was to assess the indications, the optimal treatment schedule, the technical factors associated with TACE, and the overall application of TACE as a personalized treatment for HCC.

11 April 2023 in Journal of Neuroendocrinology
Verified
Journal Article
Closed access
OCOdysseas Chatzipanagiotou
Odysseas Chatzipanagiotou
DSDimitrios Schizas
Dimitrios Schizas
MVMichail Vailas
Michail Vailas
MTMarina Tsoli
Marina Tsoli
PSPanagiotis Sakarellos
Panagiotis Sakarellos
EFEvangellos Felekouras
Evangellos Felekouras

1 November 2021 in Saudi Journal of Gastroenterology
Verified
Journal Article
Open access
MSMaria Sotiropoulou
Maria Sotiropoulou
Ioannis KatsarosIoannis Katsaros
Ioannis Katsaros
MVMichail Vailas
Michail Vailas
Irene LidorikiIrene Lidoriki
Irene Lidoriki
GPGeorge V Papatheodoridis
George V Papatheodoridis
DSDimitrios Schizas
Dimitrios Schizas
Nonalcoholic fatty liver disease (NAFLD) is the most common form of chronic liver disease, affecting almost one-third of the general population and 75% of obese patients with type 2 diabetes. The aim of this article is to review the current evidence concerning the role of quercetin, a natural compound and flavonoid, and its possible therapeutic effects on this modern-day disease. Despite the fact that the exact pathophysiological mechanisms through which quercetin has a hepatoprotective effect on NAFLD are still not fully elucidated, this review clearly demonstrates that this flavonoid has potent antioxidative stress action and inhibitory effects on hepatocyte apoptosis, inflammation, and generation of reactive oxygen species, factors which are linked to the development of the disease. NAFLD is closely associated with increased dietary fat consumption, especially in Western countries. The hepatoprotective effect of quercetin against NAFLD merits serious consideration and further validation by future studies.

Verified
Journal Article
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Eddy P Lincango NaranjoEddy P Lincango Naranjo
Eddy P Lincango Naranjo
EGEstefany Garces-Delgado
Estefany Garces-Delgado
Timo SiepmannTimo Siepmann
Timo Siepmann
LMLutz Mirow
Lutz Mirow
APANDREA PAOLA SOLIS PAZMINO
ANDREA PAOLA SOLIS PAZMINO
Dimitrios MorisDimitrios Moris
Dimitrios Moris
The introduction of robotics in living donor liver transplantation has been revolutionary. We aimed to examine the safety of robotic living donor right hepatectomy (RLDRH) compared to open (ODRH) and laparoscopic (LADRH) approaches. A systematic review was carried out in Medline and six additional databases following PRISMA guidelines. Data on morbidity, postoperative liver function, and pain in donors and recipients were extracted from studies comparing RLDRH, ODRH, and LADRH published up to September 2020; PROSPERO (CRD42020214313). Dichotomous variables were pooled as risk ratios and continuous variables as weighted mean differences. Four studies with a total of 517 patients were included. In living donors, the postoperative total bilirubin level (MD: −0.7 95%CI −1.0, −0.4), length of hospital stay (MD: −0.8 95%CI −1.4, −0.3), Clavien–Dindo complications I–II (RR: 0.5 95%CI 0.2, 0.9), and pain score at day > 3 (MD: −0.6 95%CI −1.6, 0.4) were lower following RLDRH compared to ODRH. Furthermore, the pain score at day > 3 (MD: −0.4 95%CI −0.8, −0.09) was lower after RLDRH when compared to LADRH. In recipients, the postoperative AST level was lower (MD: −0.5 95%CI −0.9, −0.1) following RLDRH compared to ODRH. Moreover, the length of stay (MD: −6.4 95%CI −11.3, −1.5) was lower after RLDRH when compared to LADRH. In summary, we identified low- to unclear-quality evidence that RLDRH seems to be safe and feasible for adult living donor liver transplantation compared to the conventional approaches. No postoperative deaths were reported.

5 November 2024 in Nutrients
Verified
Journal Article
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Ioannis KatsarosIoannis Katsaros
Ioannis Katsaros
SMSotiropoulou Maria
Sotiropoulou Maria
MVMichail Vailas
Michail Vailas
Emmanouil Ioannis KapetanakisEmmanouil Ioannis Kapetanakis
Emmanouil Ioannis Kapetanakis
GVGeorgia Valsami
Georgia Valsami
DIMITRIOS SCHIZASDIMITRIOS SCHIZAS
DIMITRIOS SCHIZAS
Metabolic dysfunction-associated fatty liver disease (MASLD) is a widespread liver disorder characterized by excessive fat accumulation in the liver, commonly associated with metabolic syndrome components such as obesity, diabetes, and dyslipidemia. With a global prevalence of up to 30%, MASLD is projected to affect over 100 million people in the U.S. and 20 million in Europe by 2030. The disease ranges from Steatotic Lived Disease (SLD) to more severe forms like metabolic dysfunction-associated steatohepatitis (MASH), which can progress to cirrhosis and hepatocellular carcinoma. Autophagy, a cellular process crucial for lipid metabolism and homeostasis, is often impaired in MASLD, leading to increased hepatic lipid accumulation and inflammation. Key autophagy-related proteins, such as Beclin1, LC3A, SQSTM1 (p62), CD36, and Perilipin 3, play significant roles in regulating this process. Disruption in these proteins contributes to the pathogenesis of MASLD. Quercetin, a natural polyphenolic flavonoid with antioxidant and anti-inflammatory properties, has promising results in mitigating MASLD. It may reduce hepatic lipid accumulation, improve mitochondrial function, and enhance autophagy. However, further research is needed to elucidate its mechanisms and validate its therapeutic potential in clinical settings. This underscores the need for continued investigation into autophagy and novel treatments for MASLD.