objective(s):to study the effect of low-frequency vibration on bone marrow stromal cell differentiation and potential bone repair in vivo. materials and methods:forty new zealand rabbits were randomly divided into five groups with eight rabbits in each group. for each group, bone defects were generated in the left humerus of four rabbits, and in the right humerus of the other four rabbits. to t...

objective(s): high mobility group box1 (hmgb1) is a nonhistone, dna-binding protein that serves a crucial role in regulating gene transcription and is involved in a variety of proinflammatory, extracellular activities. the aim of this study was to explore whether hmgb1 stimulation can up-regulate the expression of toll-like receptor 2 (tlr2) and toll-like receptor 4 (tlr4) on macrophages from p...

Morphine is a schedule II-controlled substance that used to allow the diminution of intra-operative, post-operative or chronic pain. However, its usage limited due addiction and overdose liabilities. was observed cause tolerance, dependence withdrawal in human. Justification: date lack scientific evidence morphine carried out by using specific single human neuroblastoma cell-line (SK-N-SH). The...

• Receptor and cell-based bioassays provided important insights into sediment toxicity. The included nine stress-activated receptors from fish. Chemical analyses of extracts revealed complex contamination profiles. Bioassays can be great importance for future environmental risk assessment. A luciferase reporter gene-based bioassay battery consisting fish, complemented with traditional fish bioa...

Hypothalamic proopiomelanocortin (POMC) neurons are critical for controlling homeostatic functions in mammals. We used a transgenic mouse model in which the POMC neurons were labeled with enhanced-green fluorescent protein (EGFP) to perform visualized, whole-cell patch recordings from pre-pubertal female hypothalamic slices. The mouse POMC-EGFP neurons expressed the same endogenous conductance ...

Background: Previous investigations have revealed, cimetidine, a histamine H2-receptor antagonist, show radioprotective effects against gamma- and neutron-induced micronuclei in bone marrow erythrocytes. In this study, the anticlastogenic effects of famotidine and ranitidine, which act similar to cimetidine as histamine H2-receptor antagonists, was investigated. Materials and Methods : Balb/c m...

Lysophosphatidic acid (LPA) known as a serum-derived growth factor, is involved in several cell physiological functions in the female reproductive system including: oocyte maturation, in vitro fertilization and embryo implantation by its transmembrane G protein-coupled receptors. The aim of the present study was to examine the effect of LPA on in vitro follicular development o...

Cell-secreted extracellular vesicles (EVs) are membranous particles highly heterogeneous in size and molecular cargo. Comprehensively, released EV sub-populations can show a wide range selection of different protein, RNA, lipid species, complementing cell communication signals. Recently, EVs represent new source for developing targeted delivery systems. stable biofluids, intrinsically biocompat...

The heterogeneity and metastatic features of cancer cells lead to a great number casualties in the world. Additionally, its diagnosis as well treatment is highly expensive. Therefore, development simple but effective diagnostic systems which detect molecular markers importance. changes on cell membranes serve targets, such HER2/neu receptor detected surface breast cells. We have aimed develop s...