Alkis Matsas

Dr. Alkis Matsas

National and Kapodistrian University of Athens, Athens, Attikí, Greece
orcid

Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

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

Representative Publications

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5 August 2023 in Life
Verified
Journal Article
Open access
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Alkis MatsasAlkis Matsas
Alkis Matsas
DSDimitrios Stefanoudakis
Dimitrios Stefanoudakis
TTTheodore Troupis
Theodore Troupis
KKKonstantinos Kontzoglou
Konstantinos Kontzoglou
Makarios EleftheriadesMakarios Eleftheriades
Makarios Eleftheriades
DIDimitrios C. Iliopoulos
Dimitrios C. Iliopoulos
Ovarian cancer (OC) is characterized by silent progression and late-stage diagnosis. It is critical to detect and accurately diagnose the disease early to improve survival rates. Tumor markers have emerged as valuable tools in the diagnosis and management of OC, offering non-invasive and cost-effective options for screening, monitoring, and prognosis. Purpose: This paper explores the diagnostic importance of various tumor markers including CA-125, CA15-3, CA 19-9, HE4,hCG, inhibin, AFP, and LDH, and their impact on disease monitoring and treatment response assessment. Methods: Article searches were performed on PubMed, Scopus, and Google Scholar. Keywords used for the searching process were “Ovarian cancer”, “Cancer biomarkers”, “Early detection”, “Cancer diagnosis”, “CA-125”,“CA 15-3”,“CA 19-9”, “HE4”,“hCG”, “inhibin”, “AFP”, “LDH”, and others. Results: HE4, when combined with CA-125, shows improved sensitivity and specificity, particularly in early-stage detection. Additionally, hCG holds promise as a prognostic marker, aiding treatment response prediction and outcome assessment. Novel markers like microRNAs, DNA methylation patterns, and circulating tumor cells offer potential for enhanced diagnostic accuracy and personalized management. Integrating these markers into a comprehensive panel may improve sensitivity and specificity in ovarian cancer diagnosis. However, careful interpretation of tumor marker results is necessary, considering factors such as age, menopausal status, and comorbidities. Further research is needed to validate and refine diagnostic algorithms, optimizing the clinical significance of tumor markers in ovarian cancer management. In conclusion, tumor markers such as CA-125, CA15-3, CA 19-9, HE4, and hCG provide valuable insights into ovarian cancer diagnosis, monitoring, and prognosis, with the potential to enhance early detection.

11 April 2025 in Metabolites
Verified
Journal Article
Open access
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Anastasios PotirisAnastasios Potiris
Anastasios Potiris
EMEfthalia Moustakli
Efthalia Moustakli
ETEleni Alexandros Trismpioti
Eleni Alexandros Trismpioti
EDEirini Drakaki
Eirini Drakaki
DMDespoina Mavrogianni
Despoina Mavrogianni
SSSofoklis Stavros
Sofoklis Stavros
Background/Objectives: Inflammation, infections, and oxidative stress (OS) all have an impact on male infertility, which is a complicated, multifaceted illness. OS affects motility and fertilization capability. It accomplishes this through damaging sperm DNA, oxidizing proteins, and triggering lipid peroxidation. These effects occur due to an imbalance between reactive oxygen species (ROS) and antioxidant defenses. Methods: This review aims to evaluate the impact of oxidative stress and inflammation on male infertility by assessing recent literature. Results: Pro-inflammatory cytokines, like TNF-α and IL-6, interfere with spermatogenesis and promote oxidative damage. Additionally, infections caused by pathogens like Escherichia coli and Chlamydia trachomatis alter the reproductive microenvironment, leading to sperm dysfunction and inflammation. Conclusions: Early detection and targeted treatment are essential due to the intricate interactions among these elements. Microbiota-modulating techniques, antimicrobial therapies, anti-inflammatory drugs, and antioxidants are therapeutic approaches that may help reduce oxidative damage and enhance male fertility.

19 August 2022 in Children
Verified
Journal Article
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AAAngeliki Arapaki
Angeliki Arapaki
Panagiotis ChristopoulosPanagiotis Christopoulos
Panagiotis Christopoulos
Emmanouil KalampokasEmmanouil Kalampokas
Emmanouil Kalampokas
OTOlga Triantafyllidou
Olga Triantafyllidou
Alkis MatsasAlkis Matsas
Alkis Matsas
NVNikolaos F. Vlahos
Nikolaos F. Vlahos
Cancer during childhood and adolescence remains a major public health issue, affecting a significant portion of this age group. Although newer anti-cancer treatments have improved survival rates, this comes at a cost in terms of gonadotoxic effects. As a result, the preservation of fertility is important. Ovarian tissue cryopreservation, one of the newest methods, has some advantages, especially for prepubertal patients: no need for ovarian stimulation, thus, no further risk for estrogen-sensitive cancer types, and preservation of more and better-quality primordial follicles of the ovarian cortex. The most frequent indications include treatment with alkylating agents, ovarian-focused radiotherapy, leukemias, lymphomas, brain and neurological tumors, as well as Turner syndrome and benign hemoglobinopathies. An expected survival exceeding 5 years, the absence of systematic disease and an overall risk of premature ovarian insufficiency over 50% are among the criteria that need to be fulfilled in order for a patient to undertake this method. Orthotopic transplantation is more frequently used, since it can allow both live birth and the recovery of endocrine function. Reimplantation of malignant cells is always a major risk and should always be taken into consideration. Histological analysis, as well as immunohistochemical and molecular methods, are needed in order to improve the search for malignant cells before transplantation. Ovarian tissue cryopreservation appears to be a method with specific benefits, indications and risks which can be an important tool in terms of preserving fertility in younger women.

6 March 2024 in Life
Verified
Journal Article
Open access
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DSDimitrios Stefanoudakis
Dimitrios Stefanoudakis
EKEvaggelia Karopoulou
Evaggelia Karopoulou
Alkis MatsasAlkis Matsas
Alkis Matsas
GKGeorgia Anna Katsampoula
Georgia Anna Katsampoula
ETErmioni Tsarna
Ermioni Tsarna
Panagiotis ChristopoulosPanagiotis Christopoulos
Panagiotis Christopoulos
Gynecological cancers pose a significant burden on women’s health worldwide, necessitating innovative treatment approaches. Immunotherapy has emerged as a promising strategy, harnessing the body’s immune system to combat cancer. This review aims to provide a comprehensive overview of the current landscape and future directions of immunotherapy in cervical and endometrial cancer. Methods: A thorough literature search was conducted to identify relevant studies and clinical trials. The main methods and treatments employed in immunotherapy for cervical and endometrial cancer, including immune checkpoint inhibitors, cancer vaccines, and adoptive cell therapies, are briefly described. Results: Immune checkpoint inhibitors, such as anti-PD-1/PD-L1 antibodies, have shown remarkable clinical efficacy in certain gynecological malignancies, particularly in advanced or recurrent cases. Additionally, ongoing research on cancer vaccines and adoptive cell therapies holds promise for personalized and targeted treatment options.

14 December 2023 in Journal of Clinical Medicine
Verified
Journal Article
Open access
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Alkis MatsasAlkis Matsas
Alkis Matsas
PPPanagiota Panopoulou
Panagiota Panopoulou
NANeofyta Antoniou
Neofyta Antoniou
ABAlexandra Bargiota
Alexandra Bargiota
AGAlexandros Gryparis
Alexandros Gryparis
GVGEORGIOS VALSAMAKIS
GEORGIOS VALSAMAKIS
Background and objectives: Chronic activation of the stress system has cumulative effects on the body, and it places individuals at risk for adverse health outcomes. Chronic stress has been assessed by health questionnaires in pregnancy. During the perinatal period, mothers experience increased physical and emotional demands. Chronic stress interferes with hormonal functions in mothers and infants. This meta-analysis studies the effect of maternal chronic stress during pregnancy, as assessed by established stress questionnaires, on the birth weight of their full-term infants. Design and methods: According to our criteria and after research collection, we obtained 107 studies and we conducted two types of analyses: a logistic (N = 22,342) and linear regression analysis (N = 7431). Results: Our results show that chronic stress is associated with a statistically significant risk of low birth weight (OR = 1.50, CI 95% = [1.13; 1.99], p ≤ 0.02).Conclusions: Increased maternal chronic stress, as assessed by questionnaires, in pregnancy is associated with a low-birth-weight baby. The above meta-analysis indicates that maternal high chronic stress questionnaire scores could be used as a clinical tool in order to assess low-birth-weight risk.

1 June 2023 in Life
Verified
Journal Article
Open access
PDF file
Alkis MatsasAlkis Matsas
Alkis Matsas
ASAthanasios Sachinidis
Athanasios Sachinidis
MLMalamatenia Lamprinou
Malamatenia Lamprinou
ESEleni Stamoula
Eleni Stamoula
Panagiotis ChristopoulosPanagiotis Christopoulos
Panagiotis Christopoulos
Background: Primary dysmenorrhea is considered to be one of the most common gynecological complaints, affecting women’s daily activities and social life. The severity of dysmenorrhea varies among women, and its management is of high importance for them. Given that non-steroidal anti-inflammatory drugs (NSAIDs), the established treatment for dysmenorrhea, are associated with many adverse events, alternative therapeutic options are under evaluation. Emerging evidence correlates management of dysmenorrhea with micronutrients, especially vitamins. Purpose: The aim of this narrative review is to highlight and provide evidence of the potential benefits of vitamins for the management of dysmenorrhea. Methods: The articles were searched on PubMed, Scopus and Google Scholar. The searching process was based on keywords, such as “primary dysmenorrhea”, “vitamins”, “supplementation”, “vitamin D”, “vitamin E” and others. Our search focused on data derived from clinical trials, published only during the last decade (older articles were excluded). Results: In this review, 13 clinical trials were investigated. Most of them supported the anti-inflammatory, antioxidant and analgesic properties of vitamins. Particularly, vitamins D and E revealed a desirable effect on dysmenorrhea relief Conclusion: Despite the scarcity and heterogeneity of related research, the studies indicate a role of vitamins for the management of primary dysmenorrhea, proposing that they should be considered as alternative therapeutic candidates for clinical use. Nevertheless, this correlation warrants further research.