We infer that Bennu is an ancient object that has witnessed over 4.5Gyr of solar system history. Its chemistry and mineralogy were established within the first 10Myr of the solar system. It likely originated as a discrete asteroid in the inner Main Belt approximately 0.7-2Gyr ago as a fragment from the catastrophic disruption of a large (approximately 100-km), carbonaceous asteroid. It was delivered

to near-Earth space via a combination of Yarkovsky-induced drift and interaction with giant-planet https://www.selleckchem.com/products/10058-f4.html resonances. During its journey, YORP processes and planetary close encounters modified Bennu’s spin state, potentially reshaping and resurfacing the asteroid. We also review work on Bennu’s future dynamical evolution and constrain its ultimate fate. It is one of the most Potentially Hazardous Asteroids with an approximately 1-in-2700 chance of impacting the Earth in the late 22nd century. It will most likely end its dynamical life by falling into the Sun. The highest probability for a planetary impact is with Venus, followed by the Earth. There is a chance that Bennu will be ejected from the inner solar system after a close encounter with Jupiter. OSIRIS-REx will return samples from the surface of this intriguing asteroid in September

2023.”
“Background: Prematurity and hereditary factors predispose to cerebral selleck kinase inhibitor palsy (CP). Previously, low cord blood levels of the anti-inflammatory chemokine CCL18 have been found to be associated with risk of CP in preterm children. Objectives: To investigate the association between single nucleotide polymorphisms (SNPs) in CCL18 and susceptibility to CP, as well as the association between the SNPs and cord blood levels of CCL18. Methods: The original population comprised very-low-gestational-age (VLGA; smaller than 32 weeks) children from northern and central Finland (25 cases, 195 controls). Five CCL18 SNPs were genotyped Selleckchem PKC412 and examined for associations with CP and cord blood CCL18. The replication population comprised Caucasian VLGA children from southern Finland and Canada (23 cases, 248 controls). Results: In the original population,

SNP rs2735835 was associated with CP; the minor allele A was underrepresented in cases compared to controls (OR = 0.42, 95% CI: 0.21-0.83, p = 0.01). This association remained significant after adjustment for multiple testing and risk factors of CP, and after combining the original and replication populations (OR = 0.52, 95% CI: 0.33-0.83, p = 0.005). Intraventricular hemorrhage (IVH) additively predicted CP. The Rs2015086 genotype was modestly associated with CCL18 concentration. Conclusions: A common CCL18 polymorphism together with IVH had an additive influence on CP susceptibility. Developmentally regulated CCL18, confined to primates, may be involved in the complex sequence of events leading to brain injury and predisposition to CP phenotype. (C) 2015 S.