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Immune signature of small bowel adenocarcinoma and the role of tumor microenvironment

World Journal of Gastroenterology 2024年第8期30卷 794-798页

作者： Grigorios Christodoulidis Marina nektaria Kouliou Konstantinos Eleftherios Koumarelas Department of General Surgery University Hospital of LarissaLarissa 41110Greece

In this editorial we comment on the article published“Clinical significance of programmed cell death-ligand expression in small bowel adenocarcinoma is determined by the tumor microenvironment”.Small bowel adenocarcinoma(SBA)is a rare gastrointestinal neoplasm and despite the small intestine's significant surface area,SBA accounts for less than 3%of such *** detection is challenging and the reason arises from its asymptomatic nature,often leading to late-stage discovery and poor *** involves platinum-based chemotherapy with a 5-fluorouracil combination,but the lack of effective chemotherapy contributes to a generally poor *** are linked to genetic disorders and risk factors,including chronic inflammatory *** unique characteristics of the small bowel,such as rapid cell renewal and an active immune system,contributes to the rarity of these tumors as well as the high intratumoral infiltration of immune cells is associated with a favorable *** cell death-ligand 1(PD-L1)expression varies across different cancers,with potential discrepancies in its prognostic *** instability(MSI)in SBA is associated with a high tumor mutational burden,affecting the prognosis and response to *** presence of PD-L1 and programmed cell death 1,along with tumor-infiltrating lymphocytes,plays a crucial role in the complex microenvironment of SBA and contributes to a more favorable prognosis,especially in the context of high MSI *** tumor-infiltrating lymphocytes are identified as independent prognostic indicators and the association between MSI status and a favorable prognosis,emphasizes the importance of evaluating the immune status of tumors for treatment decisions.

关键词： Programmed cell death 1 Programmed cell death-ligand 1 Programmed death ligand Small bowel adenocarcinoma Tumor infiltrating lymphocytes Tumor microenvironment Microsatellite instability

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Revolutionizing gastric cancer treatment:The potential of immunotherapy

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World Journal of Gastroenterology 2024年第4期30卷 286-289页

作者： Grigorios Christodoulidis Konstantinos Eleftherios Koumarelas Marina nektaria Kouliou Department of General Surgery University Hospital of LarissaLarissa 41110Greece

Gastric cancer,a prevalent malignancy worldwide,ranks sixth in terms of frequency and third in fatality,causing over a million new cases and 769000 annual *** in Eastern Europe and Eastern Asia,risk factors include family medical history,dietary habits,tobacco use,Helicobacter pylori,and Epstein-Barr virus ***,gastric cancer is often diagnosed at an advanced stage,leading to a grim prognosis,with a 5-year overall survival rate below 5%.Surgical intervention,particularly with D2 Lymphadenectomy,is the mainstay for early-stage cases but offers limited *** advanced cases,the National Comprehensive Cancer Network recommends chemotherapy,radiation,and targeted *** immunotherapy presents promise,especially for unresectable or metastatic cases,with strategies like immune checkpoint inhibitors,tumor vaccines,adoptive immunotherapy,and nonspecific *** this Editorial,with regards to the article“Advances and key focus areas in gastric cancer immunotherapy:A comprehensive scientometric and clinical trial review”,we address the advances in the field of immunotherapy in gastric cancer and its future prospects.

关键词： Immunotherapy Adaptive immunotherapy Tumor vaccines Chimeric antigen receptor therapy Tumor-infiltrating lymphocytes therapy Natural killer therapy Cytokine-induced killer therapy Engineered T cell receptor therapy Immune checkpoint inhibitors

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Understanding autoimmune pancreatitis: Clinical features, management challenges, and association with malignancies

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World Journal of Gastroenterology 2024年第15期30卷 2091-2095页

作者： Grigorios Christodoulidis Marina nektaria Kouliou Konstantinos Eleftherios Koumarelas Department of General Surgery University Hospital of LarissaUniversity of ThessalyLarissa 41110Greece

In this editorial we comment on the article by Jaber et *** pancreatitis(AIP)represents a distinct form of pancreatitis,categorized into AIP-1 and AIP-2,characterized by obstructive jaundice,lymphoplasmacytic infiltrate,and ***-1,associated with elevated immunoglobulin G4(IgG4)levels,exhibits higher relapse rates,affecting older males,while AIP-2 is less common and linked to inflammatory bowel *** is considered a manifestation of IgG4-related systemic disease,sharing characteristic histological *** are the primary treatment,with emerging biomarkers like interferon alpha and *** poses an increased risk of various malignancies,and the assoc-iation with pancreatic cancer is *** is reserved for severe cases,necessitating careful evaluation due to diagnostic *** patients may have concurrent PanINs but display favorable long-term outcomes compared to pancreatic cancer *** diagnostic assessment,including biopsy and steroid response,is crucial for informed surgical decisions in AIP.

关键词： Autoimmune pancreatitis Immunoglobulin G4-related disease Pancreatic cancer Surgery

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Double role of depression in gastric cancer:As a causative factor and as consequence

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World Journal of Gastroenterology 2024年第10期30卷 1266-1269页

作者： Grigorios Christodoulidis Koumarelas Konstantinos-Eleftherios Kouliou Marina-nektaria Department of General Surgery University Hospital of LarissaLarissa 41110Greece

In this editorial we comment on the article“Hotspots and frontiers of the rela-tionship between gastric cancer and depression:A bibliometric study”.Gastric cancer(GC)is a common malignancy in the digestive system with increased mortality and morbidity rates *** treatments,such as gastrectomy,negatively impact patients'quality of life and beyond the physical strain,GC patients face psychological challenges,including anxiety and *** prevalence of depression can be as high as 57%,among gastrointestinal cancer *** to the advancements in treatment effectiveness and increased 5-year overall survival rates,attention has shifted to managing psychological ***,the significance of managing the depression doesn’t lie solely in the need for a better psychological *** leads to chronic stress acti-vating the sympathetic nervous system and the hypothalamus-pituitary-adrenal axis,leading release of catecholamines inducing tumor proliferation,migration,and metastasis,contributing to GC *** dysregulation of neurotrans-mitters and the involvement of various signaling pathways underscore the complex interplay between depression and *** strategies are required to address the psychological aspects of GC,including region-specific interventions and increased monitoring for *** the intricate relationship between depression and GC progression is essential for developing effective therapeutic strategies and improving overall outcomes for patients facing this complex *** this Editorial we delve into double role of depression in the pathogenesis of GC and as a complication of it.

关键词： Gastric cancer Depression Anxiety Chronic stress Pathogenesis of gastric cancer

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Prognostic nutritional index in predicting survival of patients with gastric or gastroesophageal junction adenocarcinoma: A systematic review

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World Journal of Gastrointestinal Oncology 2024年第2期16卷 514-526页

作者： Stylianos Fiflis Grigorios Christodoulidis Menelaos Papakonstantinou Alexandros Giakoustidis Stergos Koukias Paraskevi Roussos Marina nektaria Kouliou Konstantinos Eleftherios Koumarelas Dimitrios Giakoustidis First Department of Surgery General Hospital PapageorgiouThessaloniki 56429Greece Department of General Surgery University Hospital of LarissaLarissa 41110Greece

BACKGROUND Gastric cancer is the third most common cause of cancer related death *** with or without chemotherapy is the most common approach with curative intent;however,the prognosis is poor as mortality rates remain *** indexes have been proposed in the past few years in order to estimate the survival of patients undergoing *** preoperative nutritional status of gastric cancer patients has recently gained attention as a factor that could affect the postoperative course and various indexes have been *** aim of this systematic review was to assess the role of the prognostic nutritional index(PNI)in predicting the survival of patients with gastric or gastroesophageal adenocarcinoma who underwent gastrectomy with curative *** To investigate the role of PNI in predicting the survival of patients with gastric or gastroesophageal junction *** A thorough literature search of PubMed and the Cochrane library was performed for studies comparing the overall survival(OS)of patients with gastric or gastroesophageal cancer after surgical resection depending on the preoperative PNI *** PRISMA algorithm was used in the screening process and finally 16 studies were included in this systematic *** review protocol was registered in the International Prospective Register of Systematic Reviews(PRO) RESULTS Sixteen studies involving 14551 patients with gastric or esophagogastric junction adenocarcinoma undergoing open or laparoscopic or robotic gastrectomy with or without adjuvant chemotherapy were included in this systematic *** patients were divided into high-and low-PNI groups according to cut-off values that were set according to previous reports or by using receiver operating characteristic curve analysis in each individual *** 5-year OS of patients in the low-PNI groups ranged between 39%and 70.6%,while in the high-PNI groups,it ranged between 54.9%and 95.8%.In most of the included st

关键词： Prognostic nutritional index Gastric adenocarcinoma Gastroesophageal junction cancer Prognosis Overall survival

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结节性乳房畸形的美学再造

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中国美容整形外科杂志 2015年第4期26卷 I0020-I0020页

作者： Apostolos D. Mandrekas George J. Zambacos Anastasios Anastasopoulos Dimitrios Hapsas nektaria lambrinaki Lydia Ioannidou-Mouzaka 朱利娜高景恒张晨袁继龙 Artion整形外科中心希腊雅典《中国美容整形外科杂志》编辑部大连大学附属新华医院整形外科辽宁省人民医院整形外科

结节性乳房畸形是一种罕见的乳房畸形，可导致年轻女性双侧或单侧乳房异常。其特征是乳房基底部环状收缩，导致乳房实质组织水平和垂直方向发育不良，伴或不伴有乳头乳晕复合体处乳房实质组织疝出和乳晕扩大。许多学者已提出许多矫正畸... 详细信息

结节性乳房畸形是一种罕见的乳房畸形，可导致年轻女性双侧或单侧乳房异常。其特征是乳房基底部环状收缩，导致乳房实质组织水平和垂直方向发育不良，伴或不伴有乳头乳晕复合体处乳房实质组织疝出和乳晕扩大。许多学者已提出许多矫正畸形的方法，但是由于这些方法大多没有解决收缩环的问题，进而导致矫正效果不能令人满意。本研究介绍一种新的治疗方法，即采取隆乳术入路，并通过分离收缩环重置乳房的实质组织，进而创建了2个乳房支柱。支柱的作用是上提乳房。如果乳房体积不足，可将硅胶假体置入乳腺下腔隙。如果乳头乳晕复合体较大，利用双环切口矫正。本组共成功矫治了11例（21侧）患者，且美学效果均较好。

关键词：乳房畸形美学效果结节性乳头乳晕复合体再造实质组织矫正畸形乳房异常

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Pivotal role of exosomes in diagnosis and treatment of esophageal cancer in a new era of precision medicine

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World Journal of Methodology 2024年第1期14卷 1-5页

作者： Grigorios Christodoulidis Konstantinos Eleftherios Koumarelas Marina nektaria Kouliou Department of General Surgery University Hospital of LarissaLarissa 41110Greece

In this editorial we comment on the article published by Ning et al,“Role of exosomes in metastasis and therapeutic resistance in esophageal cancer”.Esophageal cancer(EC)represents a significant global health concern,being the seventh most common and sixth in terms of mortality *** the advances in therapeutic modalities,the management of patients with EC remains challenging,with a 5-year survival rate of only 25%and a limited eligibility for curative surgery due to its late *** screening methods are impractical for the early detection of EC,given their either invasive or insensitive *** advent of liquid biopsy,with a focus on circulating tumor cells,circulating tumor DNA,and exosomes,heralds a non-invasive avenue for cancer ***,small vesicles involved in intercellular communication,are highlighted as potential biomarkers for EC diagnosis and *** with a diverse cargo encompassing various types of RNA,DNA molecules,proteins,and metabolites,exosomes emerge as key players in tumorigenesis,tumor development,and *** significance extends to carrying distinctive biomarkers,including microRNAs(miRNAs),long non-coding RNAs,and circular RNAs,underscoring their potential diagnostic and prognostic ***,exosomes may be utilized for therapeutic purposes in the context of EC treatment,serving as efficient delivery vehicles for therapeutic agents such as chemotherapeutic medicines and *** this editorial we delve into the applications of exosomes for the early detection and treatment of EC,as well as the future perspectives.

关键词： Exosomes Esophageal cancer Diagnostic methods Novel therapies

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Billroth II anastomosis combined with brown anastomosis reduce reflux gastritis in gastric cancer patients

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World Journal of Methodology 2024年第1期14卷 71-79页

作者： Grigorios Christodoulidis Marina nektaria Kouliou Konstantinos Eleftherios Koumarelas Konstantinos Argyriou Garyfallia Apostolia Karali Konstantinos Tepetes Department of General Surgery University Hospital of LarissaLarissa 41110Greece Department of Gastroenterology University Hospital of LarissaLarissa 41334Greece

BACKGROUND The surgeon performing a distal gastrectomy,has an arsenal of reconstruction techniques at his disposal,Billroth II among *** anastomosis performed during a Billroth II procedure has shown evidence of superiority over typical Billroth II,in terms of survival,with no impact on postoperative morbidity and *** To compare Billroth II vs Billroth II and Braun following distal gastrectomy,regarding their postoperative *** Patients who underwent distal gastrectomy during 2002-2021,were separated into two groups,depending on the surgical technique used(Billroth II:74 patients and Billroth II and Braun:28 patients).The daily output of the nasogastric tube(NGT),the postoperative day that NGT was removed and the day the patient started per os feeding were *** complications were at the same time *** were then statistically *** There was difference in the mean NGT removal day and the mean start feeding *** total postoperative NGT output was lower in Braun group(399.17 mL vs 1102.78 mL)and it was statistically significant(P<0.0001).Mean daily postoperative NGT output was also statistically significantly lower in Braun *** to the postoperative follow up 40 patient experienced bile reflux and alkaline gastritis from the Billroth II group,while 9 patients who underwent Christodoulidis G et *** II and Braun compared with Billroth II WJM https://*** 2 March 20,2024 Volume 14 Issue 1 Billroth II and Braun anastomosis were presented with the same conditions(P<0.05).CONCLUSION There was evidence of superiority of Billroth II and Braun vs typical Billroth II in terms of bile reflux,alkaline gastritis and NGT output.

关键词： Billroth II Billroth II and Braun Reconstruction techniques Gastrectomy Distal gastrectomy

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