Anti-EGFR antibodies combined with chemotherapy doublets are a cornerstone of the upfront treatment of colorectal cancer. RAS and BRAF mutations are established negative predictive factors for such therapy. The primary tumour located in the proximal colon has recently emerged as another negative predictive factor.
View Article and Find Full Text PDFGastrointestinal (GI) cancers are some of the most common cancers in the world and their number is increasing. Their etiology and pathogenesis are still unclear. ADAM proteins are a family of transmembrane and secreted metalloproteinases that play a role in cancerogenesis, metastasis and neoangiogenesis.
View Article and Find Full Text PDFOxidative stress may play an important role in colorectal cancer (CRC). The present study included 94 adult patients with CRC (52 men and 42 women) and 26 hospitalized patients (12 men and 14 women) in whom CRC was excluded (control group). During hospitalization, blood serum samples were collected from both groups.
View Article and Find Full Text PDFADAM10 and ADAM17 have a role in inflammation and diseases associated with inflammation, such as diabetes, cardiovascular diseases (CVD) or cancer, e.g., colorectal cancer (CRC).
View Article and Find Full Text PDFBackground And Objectives: Currently, diabetes is becoming a very serious challenge in medicine;type 2 diabetes mellitus (T2DM) is referred to as a noncontagious epidemic of the 21st century. The aim of the study is to assess the lifestyle of patients with type 2 diabetes, in particular eating habits, physical activity, and tobacco smoking, and to compare the obtained values with the latest recommendations of the Polish Society of Diabetology.
Materials And Methods: The study group was comprised of 460 patients with type 2 diabetes, treated in the Diabetes Outpatient Clinic ( = 299) and the Clinical Department of Internal Medicine ( = 166).
Mounting evidence suggests that inflammation, immune response, and coagulation status determine many processes during the carcinogenesis pathway in colorectal cancer (CRC). Inflammation strongly promotes tumor formation, progression, and metastasis. The systemic inflammatory response (SIR) may be reflected by simple indicators evaluated on the basis of peripheral blood morphology parameters.
View Article and Find Full Text PDFAmple evidence indicates that oxidative stress, including complex lipid peroxidation processes, may play a significant role in the pathogenesis of colorectal cancer. The goal of this study was to evaluate selected oxidative stress markers in patients with colorectal cancer depending on some clinical features, with particular attention paid to the location of the primary tumor. The study was conducted on a group of 66 patients with colorectal cancer.
View Article and Find Full Text PDFColorectal cancer is one of the most common cancers in the world. Due to its still undetermined pathogenesis, we are searching for signaling pathways that are important in the development of colorectal cancer. In this article, we present results of study on the role of ADAM proteins in colorectal cancer.
View Article and Find Full Text PDFColorectal cancer (CRC) is the third most common malignant neoplasm worldwide. In Poland, colorectal cancer ranks second in tumor incidence regardless of sex; moreover, there has been a steady increase in the incidence of CRC. CRC results from complex interactions between inherited susceptibility, clinical conditions and environmental/lifestyle-related risk factors such as physical inactivity, smoking, alcohol consumption, high-fat/low-fiber diet, and obesity/overweight.
View Article and Find Full Text PDFIn certain patients with advanced colorectal cancer, loss of phosphatase and tensin homolog deleted on chromosome 10 (PTEN) activity is observed. PTEN is a major gatekeeper gene of the AKT serine/threonine kinase (AKT) signaling pathway responsible for the proliferative activity of cells. The assessment of AKT activity may be a prognostic factor or a predictor of response to the targeted therapies against particular signaling proteins.
View Article and Find Full Text PDFJ Biol Regul Homeost Agents
February 2018
Colorectal cancer is the third most common cancer in the world. Our study analyzed the potential significance of serum levels of selected adamalysines (ADAM10, ADAM12, ADAM17, ADAM28) in colorectal cancer patients. The study was performed on a group of 85 colorectal cancer patients (48 men, 37 women).
View Article and Find Full Text PDFMicrosatellite instability (MSI) is a marker of the replication error phenotype. It is caused by impaired DNA mismatch repair processes (MMR), resulting in ineffectiveness of the mechanisms responsible for the DNA replication precision and postreplicative DNA repair. MSI underlies the pathogenesis of 10%-20% of colorectal cancer (CRC) cases.
View Article and Find Full Text PDFEndothelins are a family of four endogenous peptides (ET-1, ET-2, ET-3, ET-4) secreted primarily in an inactive form by the endothelium. They are activated with the participation of converting enzyme. Numerous studies have described their pleiotropic biological activity.
View Article and Find Full Text PDFJ Biol Regul Homeost Agents
September 2016
Magnesium salts are components of many dietary supplements used in treatment or prevention of magnesium deficiency. Hypomagnesemia usually results from an improper lifestyle, including unbalanced diet. Isolated hepatocytes of animals or humans are the preferred model used to study the in vitro effects of exogenous factors on cellular metabolic changes.
View Article and Find Full Text PDFBackground: Excess body weight is one of the most common health and economic problems of the contemporary world. According to the assessments of the World Health Organization (WHO), almost billion adults are overweight and at least 300 million were diagnosed with clinical obesity. Health consequences of overweight are: ischemic heart disease, congestive cardiac failure, hypertension, arteriosclerotic vascular disease, diabetes mellitus type 2, tumours, degenerative joint disease and many more.
View Article and Find Full Text PDFJ Biol Regul Homeost Agents
July 2016
Phosphatase and Tensin Homolog deleted on chromosome 10 (PTEN) gene is one of the most important tumor suppressor genes which is involved in the regulation of many signaling cascades (AKT/PKB and MAPK). Subtle changes in its activity lead to cancer susceptibility or aggressive tumor behaviour. Despite the diversity of mechanisms leading to PTEN inactivation, it is frequently associated with a decreased or complete loss of protein expression.
View Article and Find Full Text PDFPostepy Hig Med Dosw (Online)
February 2016
Increasing numbers of reports about the role of adamalysins (ADAM) in malignant tumors are being published. To date, more than 30 representatives of this group, out of which about 20 occur in humans, have been described. The ADAM family is a homogeneous group of proteins which regulate, from the stage of embryogenesis, a series of processes such as cell migration, adhesion, and cell fusion.
View Article and Find Full Text PDFEndothelins are expressed in a variety of human tissue and are involved in the processes as proliferation, migration and differentiation. The signal transduction pathway is a result of the endothelin-1-3 (ET1-3) binding to their receptors (ETAR, ETBR). ET-3 is a new candidate tumour suppressor gene, which is often downregulated or silenced in human cancer.
View Article and Find Full Text PDFAdvances in genomics, molecular pathology and metabolism have generated many candidate biomarkers of colorectal cancer with potential clinical value. Epidemiological and biological studies suggest a role for adiposity, dyslipidaemia, hyperinsulinemia, altered glucose homeostasis, and elevated expression of insulin-like growth factor (IGF) axis members in the risk and prognosis of cancer. This review discusses some recent past and current approaches being taken by researches in obesity and metabolic disorders.
View Article and Find Full Text PDFAim: To demonstrate the presence and biological activity of human papilloma virus (HPV) in gastric cancer (GAC) tissues.
Methods: The study involved 84 surgically treated patients with gastric adenocarcinoma, regardless of the clinical stage of the disease. The presence of HPV DNA of high oncogenic risk types in formalin-fixed, paraffin-embedded tumor samples was determined using quantitative polymerase chain reaction analysis.
Unlabelled: The relationship between hyperglycemia and oxidative stress in diabetes is well known, but the influence of metabolic disturbances recognized as prediabetes, in elderly patients especially, awaits for an explanation.
Methods: 52 elderly persons (65 years old and older) with no acute or severe chronic disorders were assessed: waist circumference (WC), body mass index (BMI), percentage of body fat (FAT), and arterial blood pressure. During an oral glucose tolerance test (OGTT) fasting (0') and 120-minute (120') glycemia and insulinemia were determined, and type 2 diabetics (n = 6) were excluded.
Evid Based Complement Alternat Med
June 2014
Diabetes appears to be one of the most frequent noncommunicable diseases in the world. A permanent growth in the incidence of diabetes can be observed and according to the International Diabetes Federation (IDF) the year 2030 will mark the increase in the number of diabetics to 439 mln worldwide. Type 2 diabetes accounts for about 90% of all diabetes incidence.
View Article and Find Full Text PDFMagnesium is one of the commonly used dietary supplements. Therefore, this study was to evaluate the content of short, medium and long-chain fatty acids and their esters in isolated rat hepatocytes induced by magnesium and/or ethanol. Isolation of hepatocytes was carried out by the Seglen's enzymatic method using collagenase.
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