Phenotypic responses to oil pollution in a poeciliid fish.

Pollution damages ecosystems around the globe and some forms of pollution, like oil pollution, can be either man-made or derived from natural sources. Despite the pervasiveness of oil pollution, certain organisms are able to colonise polluted or toxic environments, yet we only have a limited understanding of how they are affected by it. Here, we analysed phenotypic responses to oil pollution in guppies (Poecilia reticulata) living in oil-polluted habitats across southern Trinidad.

Risk of Mortality After Resolution of Spinal Malperfusion in Acute Dissection.

Background: Spinal cord ischemia (SCI) may develop in patients presenting with acute aortic dissection. We sought to determine how SCI and its recovery affect outcomes.

Methods: We reviewed patients with SCI in acute type A aortic dissection (ATAAD) and acute type B aortic dissection (ATBAD) from September 1999 to May 2014.

Need for Limb Revascularization in Patients with Acute Aortic Dissection is Associated with Mesenteric Ischemia.

Background: Acute aortic dissection (AAD) can cause limb ischemia due to branch vessel occlusion. A minority of patients have persistent ischemia after central aortic repair and require peripheral arterial revascularization. We investigated whether the need for limb revascularization is associated with adverse outcomes.