Pairs of rats were immunized with keyhole limpet hemocyanin (KLH) and simultaneously labeled with thymidine-methyl-(3)H or 5-iodo-2'-deoxyuridine-(125)I. From 10-50 days later, their lymphoid organs were examined 3 days after anamnestic stimulation with KLH or after primary injection of BGG. Light and electron microscopic study of the labeled cells revealed that immunologic memory resided in th...

7 5 jci.org Volume 125 Number 1 January 2015 Introduction The term autophagy in its broadest sense refers to a set of diverse processes that deliver cytoplasmic constituents to lysosomes for degradation. In this Review, we focus only on the sensu stricto autophagy as a well-delineated pathway controlled by autophagyrelated gene–encoded (ATG-encoded) factors (1). Since general roles of autophagy...

The detection of an insulin antagonist in the serum of insulin resistant subjects has been attempted on a number of occasions. In certain instances, the excessive quantities of insulin used in the neutralization experiments in animals may explain the failure to obtain evidence of an insulin antagonist. In the few successful experiments which have been done, little information of a quantitative ...

UV radiation targets the skin and is a primary cause of skin cancer (both melanoma and nonmelanoma skin cancer). Exposure to UV radiation also suppresses the immune response, and UV-induced immune suppression is a major risk factor for skin cancer induction. The efforts of dermatologists and cancer biologists to understand how UV radiation exposure suppresses the immune response and contributes...

this study aimed to evaluate the cellular toxicity of two newly-released acrylic resins (futura gen and gc reline hard) in comparison with the conventional heat-cure resin (meliodent).sample discs from each acrylic resin were placed in 24-well culture plates along with l929 mouse fibroblast cell line. a mixture of the rpmi 1640 medium, antibiotics and 10% fbs was added to the plates and the spe...

introduction: root canal disinfection is an important step in regenerative endodontic treatments. an ideal irrigating solution must have high antimicrobial activity and minimum cytotoxicity. this study sought to assess the effect of some irrigating solutions on stem cells from the human apical papilla (scap) after different periods of exposure. methods and materials: stem cells were isolated fr...