Angeliki Arapaki

Ms. Angeliki Arapaki

orcid

Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

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

Representative Publications

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29 September 2021 in Nutrients
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Journal Article
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GVGEORGIOS VALSAMAKIS
GEORGIOS VALSAMAKIS
AAAngeliki Arapaki
Angeliki Arapaki
DBDimitrios Balafoutas
Dimitrios Balafoutas
Evangelia CharmandariEvangelia Charmandari
Evangelia Charmandari
Nikos F. VlahosNikos F. Vlahos
Nikos F. Vlahos
Recent studies have shown a rise in precocious puberty, especially in girls. At the same time, childhood obesity due to overnutrition and energy imbalance is rising too. Nutrition and fertility are currently facing major challenges in our societies, and are interconnected. Studies have shown that high-fat and/or high-glycaemic-index diet can cause hypothalamic inflammation and microglial activation. Molecular and animal studies reveal that microglial activation seems to produce and activate prostaglandins, neurotrophic factors activating GnRH (gonadotropin-releasing hormone expressing neurons), thus initiating precocious puberty. GnRH neurons’ mechanisms of excitability are not well understood. In this review, we study the phenomenon of the rise of precocious puberty, we examine the physiology of GnRH neurons, and we review the recent literature regarding the pathophysiological mechanisms that connect diet-induced hypothalamic inflammation and diet-induced phoenixin regulation with precocious puberty.

19 August 2022 in Children
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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.

9 March 2022 in Children
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Journal Article
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MLMaria-Konstantina Liakopoulou
Maria-Konstantina Liakopoulou
ETErmioni Tsarna
Ermioni Tsarna
Makarios EleftheriadesMakarios Eleftheriades
Makarios Eleftheriades
AAAngeliki Arapaki
Angeliki Arapaki
KTKonstantina Toutoudaki
Konstantina Toutoudaki
Panagiotis ChristopoulosPanagiotis Christopoulos
Panagiotis Christopoulos
The majority of young women will experience discomfort associated with menstrual cycles and miss out on education and social opportunities. Endometriosis, the presence of endometrial glands and stroma outside of uterus, is the most common cause of secondary dysmenorrhea and characterized by pain despite treatment with nonsteroidal anti-inflammatory drugs and hormonal agents. The true prevalence of adolescent endometriosis is not clear. Delay in diagnosis leads to persistent pain, affects quality of life, and potentially contributes to disease progression and subfertility. A laparoscopic diagnosis is the gold standard, but the surgical appearance may differ from adults, as endometriotic lesions are usually red or clear, making their identification a challenge for gynecologists who are unexperienced with endometriosis in adolescents. A personalized medical–surgical treatment is regarded as the most effective therapeutic strategy to achieve remission of symptoms, suppress disease progression, and protect future fertility. Studies have demonstrated how adolescent endometriosis negatively affects patients’ quality of life and psychosocial functioning. Development of therapeutic interventions targeting psychosocial function and quality of life is imperative for adolescent patients.

16 February 2010 in Social Psychiatry and Psychiatric Epidemiology
Verified
Journal Article
Closed access
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AKAnna Kokkevi
Anna Kokkevi
VRVasiliki Rotsika
Vasiliki Rotsika
AAAngeliki Arapaki
Angeliki Arapaki
CRClive Richardson
Clive Richardson

1 January 2026 in Medicina
Verified
Journal Article
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DVDimitrios Vouros
Dimitrios Vouros
Maximos FrountzasMaximos Frountzas
Maximos Frountzas
AAAngeliki Arapaki
Angeliki Arapaki
KBKonstantinos Bramis
Konstantinos Bramis
NANicholas Alexakis
Nicholas Alexakis
KTKonstantinos G Toutouzas
Konstantinos G Toutouzas
Background and Objectives: Pancreatoduodenectomy (PD) is the primary treatment for patients with resectable, non-metastatic pancreatic adenocarcinoma and periampullary tumors. Although surgical methods and perioperative management have improved, the procedure still carries a high risk of complications, with postoperative pancreatic fistula (POPF) being the most significant. This study focuses on identifying current risk factors for POPF after PD in a single HPB center. Materials and Methods: We retrospectively analyzed prospectively collected data from patients undergoing PD in our department between October 2018 and April 2024. Data included demographics, comorbidities, lifestyle factors, preoperative tests (bilirubin, CA19-9, HbA1c), intraoperative variables (pancreatic texture, duct diameter), and postoperative outcomes. POPF was classified using the International Study Group of Pancreatic Surgery (ISGPS) criteria. Univariate and multivariate logistic regression analyses were performed. Results: A total of 118 patients underwent PD (82 males, 36 females; mean age 67 (45–85) years; mean body mass index (BMI) 26.6 kg/m2). POPF occurred in 37 patients (31%), with 27 Grade B (23%) and 10 Grade C (9%). The 30- and 90-day mortality rates were 5% and 12.7%, respectively. Univariate analysis showed associations between POPF and soft pancreas (p = 0.018), c-reactive protein (CRP) on postoperative day (POD) 5 (p = 0.004), and serum amylase on POD 0 (p = 0.008). Diabetes mellitus was associated with a lower incidence of POPF (p = 0.014). Multivariate analysis confirmed CRP on POD 5 (OR 1.007, p = 0.025) and DM (OR 0.254, p = 0.015), as independent factors. ROC analysis identified POD 0 amylase >113.5 U/L (AUC 0.717) and POD 5 CRP >125.3 mg/dL (AUC 0.669) as predictive values. Conclusions: POPF remains an important complication after PD. CRP > 126 mg/dL on POD 5 was associated with POPF and may serve as an adjunctive signal to guide further assessment, including imaging. The observed inverse association with diabetes mellitus is hypothesis-generating and should be interpreted cautiously, considering potential confounding and the influence of center volume, surgeon heterogeneity, and institutional protocols.