375 results match your criteria: "İstanbul University Institute of Oncology[Affiliation]"

Background: Regular exercise has been described to modify both the diversity and the relative abundance of certain bacterial taxa. To our knowledge, the effect of a cycling stage race, which entails extreme physiological and metabolic demands, on the gut microbiota composition and its metabolic activity has not been analysed.

Objective: The aim of this cohort study was to analyse the dynamics of faecal microbiota composition and short-chain fatty acids (SCFAs) content of professional cyclists over a Grand Tour and their relationship with performance and dietary intake.

View Article and Find Full Text PDF

Pro-vegetarian dietary patterns and essential and heavy metal exposure in children of 4-5-years from the INfancia y medio Ambiente cohort (INMA).

Int J Hyg Environ Health

April 2024

Instituto de Investigación Sanitaria y Biomédica de Alicante, Universidad Miguel Hernández (ISABIAL-UMH), 03010, Alicante, Spain; Unidad de Epidemiología de la Nutrición, Departamento de Salud Pública, Historia de la Ciencia y Ginecología, Universidad Miguel Hernández (UMH), 03550, Alicante, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28034, Madrid, Spain. Electronic address:

Dietary patterns provide a comprehensive assessment of food consumption, including essential nutrients and potential exposure to environmental contaminants. While pro-vegetarian (PVG) dietary patterns have shown health benefits in adults, their effects on children are less well studied. This study aims to explore the association between children's adherence to the most common PVG dietary patterns and their exposure to metals, assessed through urine concentration.

View Article and Find Full Text PDF

The prognosis of metastatic gastric cancer (GC) is poor, with a median survival time of less than a year. Capecitabine is a prodrug, metabolized by thymidine phosphorylase to its cytotoxic metabolite (5-FU). Few studies have compared capecitabine and 5-FU in mGC.

View Article and Find Full Text PDF

Despite having a higher mortality risk than conventional chemotherapeutics, high-dose chemotherapy (HDCT) has the potential to be curative in relapsed/refractory germ-cell tumors. Therefore, selecting the best patient group for this treatment is critical. This study aimed to determine the factors that affect survival in our relapsed/refractory GCT cohort who received HDCT and autologous stem-cell transplantation.

View Article and Find Full Text PDF

Background: The goal of the study was to evaluate the efficacy of tyrosine kinase inhibitors in patients with epidermal growth factor receptor (EGFR)-mutant metastatic non-small cell cancer and to determine the factors that predict objective response.

Materials And Methods: In the study, data from metastatic non-small cell lung cancer patients with EGFR mutations treated with tyrosine kinase inhibitors were retrospectively reviewed. Factors predicting objective response were evaluated with logistic regression analysis.

View Article and Find Full Text PDF

Background: The goal of this study was to assess the clinicopathologic characteristics and prognostic variables in men with breast cancer (BC).

Methods: Clinical features, pathological characteristics, stage at diagnosis, and therapy data were noted. Survival analysis was performed using the log-rank technique and Cox regression model.

View Article and Find Full Text PDF

Background: Caveolin-1 (CAV-1) is a vital component in cancer pathogenesis, as its expression determines the survival of patients with cancer. This study investigates CAV-1 serum levels in pancreatic adenocarcinoma (PA) patients and their role in tumor progression and prognostic factors.

Method: The trial included 33 patients with pathologically confirmed pancreatic cancer (PC).

View Article and Find Full Text PDF

Background: Bone metastasis is rarely seen in colorectal cancer (CRC) patients, and there is insufficient data available regarding such cases. The study aimed to identify the prognostic factors and characteristics associated with overall survival in patients with bone metastatic CRC.

Method: Data from bone metastatic CRC patients referred to a high-volume tertiary cancer center in Turkey, between January 2018 and April 2021, were retrospectively collected.

View Article and Find Full Text PDF

Among all gynecological malignancies, ovarian cancer is the predominant cause of mortality. Hence, various chemotherapy protocols have been established for managing metastatic ovarian cancer cases. The present study aimed to assess and compare the efficacy of dual chemotherapy regimens plus bevacizumab in patients diagnosed with recurrent platinum-sensitive epithelial ovarian cancer.

View Article and Find Full Text PDF

Background: Colon cancer (CC) is a heterogeneous disease that is categorized into four Consensus Molecular Subtypes (CMS) according to gene expression. Patients with loco-regional CC (stages II/III) lack prognostic factors, making it essential to analyze new molecular markers that can delineate more aggressive tumors. Aberrant methylation of genes that are essential in crucial mechanisms such as epithelial mesenchymal transition (EMT) contributes to tumor progression in CC.

View Article and Find Full Text PDF

Primary pigmented nodular adrenocortical disease (PPNAD) is a rare genetic disease mainly associated with Carney complex (CNC), which is caused by germline mutations of the regulatory subunit type 1A (RIα) of the cAMP-dependent protein kinase (PRKAR1A) gene. We report three cases suffering from CNC with unique features in diagnosis and follow-up. All cases had obesity and a cushingoid appearance and exhibited laboratory characteristics of hypercortisolism.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the impact of cigarette smoking on breast cancer risk, highlighting the conflicting effects it may have due to its carcinogenic and antiestrogenic properties.
  • Analysis from a large population-based study involving 1733 breast cancer cases and 1903 controls revealed that smoking increases the risk of premenopausal breast cancer, especially in long-term smokers (≥30 years).
  • Conversely, for postmenopausal women, smoking may lower the risk of breast cancer, particularly in those who have stopped smoking for at least 10 years, indicating that menopausal status significantly influences the relationship between smoking and breast cancer risk.
View Article and Find Full Text PDF

The aim of the study was to evaluate the real-world clinical outcomes of atezolizumab and bevacizumab (Atez/Bev) as the initial therapy for advanced hepatocellular carcinoma (HCC). We retrospectively analyzed 65 patients treated with Atez/Bev for advanced HCC from 22 institutions in Turkey between September 2020 and March 2023. Responses were evaluated by RECIST v1.

View Article and Find Full Text PDF

Neuroblastoma (NB) is the most frequent extracranial solid tumor of childhood, remarkable for its broad spectrum of clinical behavior. This diversity in behavior correlates closely with defined clinical and biological features and combinations of prognostic variables are used for risk-group assignment. S-100 proteins have roles in differentiation and were shown to be frequently dysregulated in NB.

View Article and Find Full Text PDF

Background: The primary treatment for patients with acromegaly has traditionally been transsphenoidal surgery, with decreasing reliance on radiotherapy (RT) due to advancements in pharmacotherapy (PT). Despite these advancements, a substantial portion of patients still face persistent acromegaly, necessitating novel treatment approaches. This study investigates the role of CyberKnife Stereotactic Hypofractionated Radiotherapy (CK-HFRT) in persistent acromegaly.

View Article and Find Full Text PDF

Conventional Tools for Predicting Satisfactory Response to Neoadjuvant Chemotherapy in HR+/HER2- Breast Cancer Patients.

Breast Care (Basel)

October 2023

Department of Obstetrics and Gynecology 2, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Târgu Mureș, Târgu Mureș, Romania.

Aim: The aim of the study was to assess the role of Magee Equation 3 (MagEq3), IHC4 score, and HER2-low status in predicting "satisfactory response (SR)" to neoadjuvant chemotherapy (NAC) in HR+/HER2- breast cancer (BC) patients.

Methods: In a retrospective study, female patients of any age with T, N, M HR+/HER2- BC who received NAC and underwent adequate locoregional surgical treatment were included. Patients were grouped according to 2 outcomes: (a) overall response to NAC in breast and axilla by using residual cancer burden (RCB) criteria and (b) axillary downstaging after NAC by using N staging.

View Article and Find Full Text PDF
Article Synopsis
  • Triiodothyronine (T3) is important for understanding pregnancy outcomes, but its relationship with adverse obstetric events is not well explored.
  • A study examined the effects of gestational free and total T3 levels on issues like preeclampsia and preterm birth using data from over 33,000 mother-child pairs.
  • The results revealed complex associations between T3 levels and various risks, indicating that while TT3 may relate to certain outcomes, routine measurements during pregnancy might not significantly improve risk assessment for adverse outcomes.
View Article and Find Full Text PDF

Renal cell carcinoma is the 10th most common type of cancer, accounting for 3.7% of all cancers. Our study examines patients with metastatic renal cell carcinoma who received Axitinib or Nivolumab as second-line treatment.

View Article and Find Full Text PDF

Benzene has been classified as carcinogenic to humans, but there is limited evidence linking benzene exposure to lung cancer. We aimed to examine the relationship between occupational benzene exposure and lung cancer. Subjects from 14 case-control studies across Europe and Canada were pooled.

View Article and Find Full Text PDF

Kaposi sarcoma is a malignant angioproliferative disease, and human herpesvirus-8 plays a major role in its etiology. Iatrogenic Kaposi sarcoma (IKS) can occur in patients undergoing immunosuppressive therapy. The treatment strategy for patients with IKS is immunosuppressive therapy modification.

View Article and Find Full Text PDF

Introduction: This study aims to report the efficacy and safety of capecitabine plus temozolomide (CAPTEM) across different lines of treatment in patients with metastatic neuroendocrine tumors (NETs).

Methods: We conducted a multicenter retrospective study analyzing the data of 308 patients with metastatic NETs treated with CAPTEM between 2010 and 2022 in 34 different hospitals across various regions of Turkey.

Results: The median follow-up time was 41.

View Article and Find Full Text PDF

Objectives: In our study, we aimed to (1) create a peritoneal metastasis (PM) model in nude mice, administer intraperitoneal chemotherapy using the peritoneal infusion pump we developed in this model, and (2) compare the efficacy of intraperitoneal chemotherapy using various drugs at different temperatures.

Methods: The peritoneal metastasis model was established in nude mice using the CC531 colon carcinoma cell line. Models with peritoneal metastasis (PM) were randomized into four groups of seven animals each: Group 1, control group (n=7); Group 2, normothermic intraperitoneal chemotherapy (NIPEC) with mitomycin C(MMC) (n=7); Group 3, hyperthermic intraperitoneal chemotherapy (HIPEC) with mitomycin C (n=7), and Group 4, NIPEC with 5-fluorouracil (5-FU).

View Article and Find Full Text PDF

Association between duration of smoking abstinence before non-small-cell lung cancer diagnosis and survival: a retrospective, pooled analysis of cohort studies.

Lancet Public Health

September 2023

Princess Margaret Cancer Centre and University Health Network, University of Toronto, Toronto, ON, Canada; Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada.

Article Synopsis
  • A study examined the link between how long patients abstained from smoking before being diagnosed with non-small-cell lung cancer (NSCLC) and their survival rates, aiming to inform public health messaging.
  • Conducted using data from 26 cohorts across various continents, researchers analyzed survival outcomes based on smoking history and demographic factors of nearly 42,087 patients diagnosed with NSCLC.
  • Findings revealed that longer periods of smoking abstinence (1-3 years, 3-5 years, and over 5 years) before diagnosis were correlated with improved overall and NSCLC-specific survival rates, indicating that quitting smoking can enhance cancer outcomes.
View Article and Find Full Text PDF

Social inequalities, green and blue spaces and mental health in 6-12 years old children participating in the INMA cohort.

Health Place

September 2023

Department of Clinical and Health Psychology and Research Methods, University of the Basque Country UPV/EHU, Avenida Tolosa 70, 20018, Donostia-San Sebastián, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III, c/ Monforte de Lemos 3-5, Madrid, 280, Spain; Biodonostia Health Research Institute, Group of Environmental Epidemiology and Child Development, Paseo Doctor Begiristain s/n, 20014, Donostia- San Sebastián, Spain. Electronic address:

Availability of green and blue spaces in the area of residence has been related to various health outcomes during childhood, including mental health. These environmental exposures are not evenly distributed among socioeconomic groups, which may increase social inequalities in mental health. The mechanisms through which natural environments may promote mental health are numerous and diverse.

View Article and Find Full Text PDF

Background: We evaluated the outcomes, and risk factors for recurrence in patients with early stage node-negative breast cancer in this study.

Method: Retrospective data analysis was done on patient treatment records from 1988 to 2018. The patient's demographic, clinical, pathological, and therapeutic characteristics were noted.

View Article and Find Full Text PDF