The CB1 cannabinoid receptor has been implicated in the regulation of bone remodeling and bone mass. A high bone mass (HBM) phenotype was reported in CB1-null mice generated on a CD1 background (CD1(CB1-/-) mice). By contrast, our preliminary studies in cb1-/- mice, backcrossed to C57BL/6J mice (C57(CB1-/-) mice), revealed low bone mass (LBM). We therefore analyzed CB1 expression in bone and co...

Antisera to the mouse milk factor (F), containing up to 0.5 mg. of antibody nitrogen per ml. are readily obtainable in rabbits, especially when adjuvants are added to the antigen. Quantitative data on the anti-F content of the sera are given, also on the total nitrogen precipitated by the non-casein fraction of C57 mouse milk which does not contain F. The antisera were also absorbed with casein...

basic research on the autoimmune disease multiple sclerosis has been performed mainly on its animal model namely experimental allergic encephalomyelitis. there are many different approaches established to get this model. despite the existence of many references in literature in this regard, we have been faced with many difficulties generating the model suitable for studying different therapies....

Eosinophil dynamics, in bone marrow, blood and peritoneal exudate, of resistant C57B1/6 (C57) and susceptible A/Snell (A/Sn) mice was comparatively studied during the acute phase of infection by Trypanosoma cruzi Y strain. A decline was observed in bone marrow eosinophil levels in A/Sn, but not in C57 mice, soon after infection, those of the former remaining significantly below those of the lat...

Polybrominated diphenyl ethers (PBDEs), one class of flame retardants used to suppress or inhibit the risk of fire, are regularly found in the environment and in human milk. The present study shows that neonatal exposure to a widely, environmentally found PBDE, 2,2',4,4',5-pentaBDE (PBDE 99), can induce developmental neurotoxic effects, such as changes in spontaneous behavior (hyperactivity), e...

The goal of this study is to investigate the possible circadian regulation of hippocampal excitability and long-term potentiation (LTP) measured by stimulating the Schaffer collaterals (SC) and recording the field excitatory postsynaptic potential (fEPSP) from the CA1 dendritic layer or the population spike (PS) from the soma in brain slices of C3H and C57 mice. These 2 strains of mice were of ...

Objective(s): Umbelliprenin is a prenyloxy-coumarin with pharmacologically polyvalent activity. Several studies have shown its anti-inflammatory, anti-tumor, antioxidant, and antigenotoxic activity, and other functions. However, the exact mechanism of action of this compound on the immune response has not yet been shown. Here, we investigated umbelliprenin effects on the predominance of Th1 and...