biosights: March 18, 2013 - Breaking egg symmetry

submitted by: JCB
During the first meiotic division of mammalian oocytes, the meiotic spindle and chromosomes move from the interior to the periphery of the cell. Yi et al. reveal that chromosome migration occurs in two sequential phases driven by the actin nucleators Fmn2 and the Arp2/3 complex. This biosights episode presents the paper by Yi et al. from the March 4, 2013, issue of The Journal of Cell Biology and includes an interview with senior author Rong Li (Stowers Institute for Medical Research, Kansas...

Beneficial effects of a higher-protein breakfast on the appetitive, hormonal, and neural signals controlling energy intake regulation in overweight/obese, “breakfast-skipping,” late-adolescent girls

submitted by: hurstn
Background: Breakfast skipping is a common dietary habit practiced among adolescents and is strongly associated with obesity. Objective: The objective was to examine whether a high-protein (HP) compared with a normal-protein (NP) breakfast leads to daily improvements in appetite, satiety, food motivation and reward, and evening snacking in overweight or obese breakfast-skipping girls. Design: A randomized crossover design was incorporated in which 20 girls [mean 6 SEM age: 19 6 1 y;...
Authors: Steve Douglas, Heather Hoertel, Heather Leidy, Laura Ortinau

Mathematical Modeling of Brassinosteroid Signaling

submitted by: UP Los Baños

Documentation of the special seminar on "Mathematical Modeling of Brassinosteroid Signaling," by Mark Jayson Cortez, Instructor, Institute of Mathematical Sciences and Physics during the 27th IMSP Research Colloquim at the Mathematics Building, UPLB, College, Laguna

JAMIA Webinar - 2013

submitted by: Jamia

March 2013, JAMIA Webinar. Presenter: Griffin Weber,MD. CIO of Harvard Medical School

MWV Episode 68 - Threading the NEIDL: TWiV Goes Inside a BSL-4

submitted by: MicrobeWorld
Constructed in 2009 in the highly populated South End neighborhood of Boston, Massachusetts, the National Emerging Infectious Diseases Laboratories (NEIDL) facility contains labs that operate at biosafety levels 2, 3 and 4. Due to its location the NEIDL has faced a raft of legal and regulatory hurdles that have prevented BSL-3 and BSL-4 labs from becoming functional. "Threading the NEIDL," is a 1-hour documentary narrated by Vincent Racaniello, PhD, Higgins Professor of Microbiology &...

Vitamin D supplementation and calcium absorption during caloric restriction: a randomized double blind trial

submitted by: shapses
Background: Weight loss (WL) is associated with a decrease in calcium absorption and may be one mechanism that induces bone loss with weight reduction. Objective: Because vitamin D supplementation has been shown to increase true fractional calcium absorption (TFCA), the goal of this study was to examine the effect of vitamin D during WL or weight maintenance (WM). Design: A randomized, placebo-controlled, double-blind 6-wk study was conducted in 82 postmenopausal women [BMI (in kg/...
Authors: Sue Shapses, Deeptha Sukumar, Stephen Schneider, Yvette Schlussel, Robert Sherrell, M Paul Field, Hasina Ambia-Sobhan