Cognitive Heart Failure explained via 3D Animation

submitted by: Scientific Animations

CHF or Congestive Heart Failure, a condition on continuos rise explained - Are lifestyle changes responsible for increase in cases of CHF? What are the main causes? Economic impact on health system? Innovations in diagnosing and treating CHF?
Medical Industry Trends for CHF

biosights: September 29, 2014 - Cdc42 prompts a change of heart

submitted by: JCB
The Drosophila heart is a simple tubular structure with a central lumen. Vogler et al. reveal that the small GTPase Cdc42 and actin-nucleating formin proteins promote lumen formation by regulating the dynamics of non-muscle myosin in cardioblasts during heart morphogenesis. This biosights episode presents the paper by Vogler et al. from the September 29, 2014, issue of The Journal of Cell Biology and includes an interview with two of the paper's authors, Georg Vogler and Rolf Bodmer...

biosights: September 1, 2014 - Deploying exosomes in a battle of the sexes

submitted by: JCB
The paired accessory glands of male Drosophila secrete multiple signaling factors into the seminal fluid that promote reproductive success by altering the recipient female's physiology and behavior. Corrigan et al. reveal that the secondary cells of accessory glands secrete membrane-bound exosomes in a BMP-dependent manner that, after being transferred into the female reproductive tract, inhibit the female's inclination to re-mate with other male flies. This biosights episode presents the...

biosights: August 4, 2014 - Rok keeps its finger on the pulse of apical constriction

submitted by: JCB
Early in Drosophila embryogenesis, contractile pulses of myosin assembly and disassembly constrict the apical domains of a group of epithelial cells to drive their invagination into a ventral furrow. Vasquez et al. reveal that Rho kinase and myosin phosphatase dynamically regulate these myosin pulses and that the stepwise constriction resulting from this helps maintain tissue integrity during epithelial invagination. This biosights episode presents the paper by Vasquez et al. from the August...

Символическое значение цветов в иконографии «Благовещения» в середине XV века в творчестве художников Западной Европы на примере «Благовещения из Экса» Бартелеми Д’Эйка.

submitted by: khlopov55
Символическое значение цветов в иконографии «Благовещения» в середине XV века в творчестве художников Западной Европы на примере «Благовещения из Экса» Бартелеми Д’Эйка. Исследовательская работа...

biosights: July 7, 2014 - The fluid dynamics of collective cell migration

submitted by: JCB
During development and tumor metastasis, cells prepare to migrate by undergoing an epithelial-to-mesenchymal transition that loosens their connections to neighboring cells. But some cell types then migrate en masse to their final destinations, indicating that their intercellular adhesions aren't disrupted completely. Kuriyama et al. reveal that the phospholipid lysophosphatidic acid promotes the collective migration of Xenopus neural crest cells by downregulating the surface expression of...