Epigenetic Effects of Blackberry Extract on Human Colorectal Cancer Cells.

Fruit-derived polyphenolic compounds have been shown to exert anticancer effects epigenetic mechanisms. In this study, we investigated the effect of blackberry extract on the expression of DNMTs (, , and ) and HDACs ( and ) and its influence on the cellular differentiation and promoter DNA methylation of tumor-related genes using a panel of six human CRC cell lines. Treatment with IC and IC concentrations of blackberry extract for 72 h significantly reduced and transcript levels in HCT116, SW480, HT29/219, SW742, and LS180 cells in a dose-dependent manner.

Anti-Proliferative and Anti-Telomerase Effects of Blackberry Juice and Berry- Derived Polyphenols on HepG2 Liver Cancer Cells and Normal Human Blood Mononuclear Cells.

Background: Previous studies have provided strong evidence for the anticancer activity of berry fruits.

Objective: In this study, we investigated the effects of blackberry juice and three berry- polyphenolic compounds on cell proliferation and telomerase activity in human hepatoma HepG2 and normal peripheral blood mononuclear cells (PBMCs).

Methods: The cell viability and telomerase activity were measured by MTT and TRAP assay, respectively.

Blackberry Extract Inhibits Telomerase Activity in Human Colorectal Cancer Cells.

Several mechanisms have been proposed to explain berries' anticancer effects. However, no previously published studies have investigated berries' anti-telomerase activity. In this study, the anti-telomerase activity of blackberry crude extract was analyzed in six human colorectal cancer (CRC) cell lines by TRAP assay.

Respiratory and Dermal Symptoms and Raised Serum Concentrations of Biomarkers of Oxidative Stress among Pesticide Retailers.

Background: Recently concern has been raised regarding possible health effects resulting from exposure of a group of pesticide retailers to chemicals they handle.

Objective: To investigate the prevalence of respiratory and dermal symptoms, as well as biomarkers of oxidative stress, among pesticide retailers and to compare them with those of an unexposed comparison group.

Methods: 70 male pesticide retailers and 64 male construction workers (served as the comparison group) were investigated.

Effects of novel and conventional thermal treatments on the physicochemical properties of iron-loaded double emulsions.

In this work, changes in different physicochemical properties of iron-loaded double emulsions (DEs) were monitored under the influence of novel (microwave and ohmic) and conventional heat treatments. Microwave heating led to destabilization and obvious phase separation. As compared to control samples, heat treatment increased particle size, light absorbance, centrifugal instability, iron expulsion from the internal aqueous phase, color difference, chemical instability of the lipid phase, release of iron in simulated gastrointestinal fluids and iron bioavailability in cell line SW742.

Effects of Post-Weaning Chronic Stress on Nociception, Spinal Cord μ-Opioid, and α2-Adrenergic Receptors Expression in Rats and Their Offspring.

Stressful situations can change biological process in human and animal, and some of these changes may transfer to the next generations. We used a communication box to induce chronic electrical foot-shock stress in rats. Tail flick latency and formalin test were done to determine the level of pain sensation.

Evaluation of hematological and biochemical parameters of pesticide retailers following occupational exposure to a mixture of pesticides.

Aims: This study was undertaken to ascertain whether light occupational exposure to pesticides by retailers might be associated with any liver, kidney, nervous system dysfunction or hematological abnormalities.

Main Methods: In this cross-sectional study, 70 male pesticide retailers (cases) and 64 male subjects, randomly selected from the constructions workers of city council contractors, as the referent group, were investigated. Urine and blood samples were taken from all subjects for urine analysis, hematological and biochemical parameters.

The Impact of Thymidylate Synthase and Methylenetetrahydrofolate Reductase Genotypes on Sensitivity to 5-Fluorouracil Treatment in Colorectal Cancer Cells.

5-fluorouracil (5-FU) is one of the major components of many standard regimens for chemotherapy of colorectal cancer (CRC) and some other malignancies. Given the known relationship between thymidylate synthase (TS) and methylenetetrahydrofolate reductase (MTHFR) activity and 5-FU metabolism, this study investigated the impact of selected functional polymorphisms of the TS and MTHFR genes on chemotherapy resistance in 5 human CRC cell lines. HCT116, SW1116, HT29/219, LS180, and Caco-2 CRC cells were cultured as monolayer and their chemosensitivity to 5-FU, oxaliplatin, and irinotecan was determined by MTT assay.

Exploring 3D structure of human gonadotropin hormone receptor at antagonist state using homology modeling, molecular dynamic simulation, and cross-docking studies.

Human gonadotropin hormone receptor, a G-protein coupled receptor, is the target of many medications used in fertility disorders. Obtaining more structural information about the receptor could be useful in many studies related to drug design. In this study, the structure of human gonadotropin receptor was subjected to homology modeling studies and molecular dynamic simulation within a DPPC lipid bilayer for 100 ns.

Effect of Urtica dioica Leaf Alcoholic and Aqueous Extracts on the Number and the Diameter of the Islets in Diabetic Rats.

Urtica dioica has been known as a plant that decreases blood glucose. Despite the importance of this plant in herbal medicine, relatively little research has been down on effects of this plant on islets yet. The objective of the current study was to evaluate the effect of dried Urtica dioica leaf alcoholic and aqueous extracts on the number and the diameter of the islets and histological parameters in streptozocin-induced diabetic rats.

Effect of granulocyte colony-stimulating factor administration on tissue regeneration due to carbon tetrachloride-induced liver damage in experimental model.

The mechanism by which granulocyte colony-stimulating factor (G-CSF) could lead to the protection from liver injury is not well known. Therefore, the resolution of this role needs further basic and clinical experimental investigation. Acute liver injury was induced in rats by single intraperitoneal injection of a 0.

Effects of Teucrium Polium Aerial Parts extract on oral glucose tolerance tests and pancreas histopathology in Streptozocin-induced diabetic rats.

Teucrium polium can reduce serum glucose. There are few reports in the literature related to this subject and the resolution of this mechanism requires further experiments. The aim of the present study was to evaluate the effects of Teucrium polium aerial parts extracts on oral glucose tolerance tests and pancreas histology in streptozocin-induced diabetic rats.