E-cigarette data don’t end debate

Smoke, fire and mirrors: the e-cigarette debate.

New trial data do not end the PSA screening debate.

T o screen or not to screen? For prostate cancer, that is still the question, despite the release this spring of mortality data from two large trials that asked whether prostate-specifi c antigen (PSA) testing reduces the risk of dying from prostate cancer. In the United States, the Prostate, Lung, Colorectal, and Ovarian (PLCO) cancer screening trial found no mortality benefi t for PSA screeni...

Electronic Cigarette (E-Cigarette) Using: Toxicological Aspects

INTRODUCTION Electronic nicotine delivery systems (ENDS), which can be as also called “personal vaporizer”, “vape pen”, “e-waterpipe”, or “e-cigarette”, have become increasingly popular in recent years (1). The supporters of ENDS argue that the users are exposed to lesser chemicals, and these systems help quit smoking, and thus, ENDSs are safer than cigarettes (2). E-cigarette is a product that...

E-cigarette specialty retailers: Data to assess the association between retail environment and student e-cigarette use

The retail environment is a major social determinant of health, yet little is known about the e-cigarette specialty retailer environment. The e-cigarette specialty retail environment may be associated with e-cigarette use by middle and high school students, an issue that was addressed in a recent article entitled, "E-cigarette use among students and e-cigarette specialty retailer presence near ...

Peroxisome Biogenesis: End of the Debate

The long-standing and thorny issue of the origin of peroxisomes has at last been solved. New evidence demonstrates conclusively that the peroxisomal membrane originates from the endoplasmic reticulum. This process requires the two peroxins Pex3p and Pex19p leading to intermediate structures that then mature into functionally competent organelles.