Recent studies have demonstrated that miRNAs can play important roles in osteoblast differentiation and bone formation. However, the function of miRNAs in bone loss induced by microgravity remains unclear. In this study, we investigated the differentially expressed miRNAs in both the femur tissues of hindlimb unloading rats and primary rat osteoblasts (prOB) exposed to simulated microgravity. S...

OBJECTIVE To investigate the causes of amenorrhea in Korean women. METHODS Medical records from 1,212 women with amenorrhea who visited the Department of Obstetrics and Gynecology, Asan Medical Center, between January 1989 and December 2011 were retrospectively reviewed. Amenorrhea was categorized as either primary or secondary. RESULTS Primary amenorrhea was identified in 132 of the patien...

We prove a strikingly simple formula for the number of permutations containing exactly one subsequence of type 132. We show that this number equals the number of partitions of a convex (n + 1 )-gon into n 2 parts by noncrossing diagonals. We also prove a recursive formula for the number d, of those containing exactly two such subsequences, yielding that {d,} is P-recursive. (~) 1998 Elsevier Sc...

ABSTRACT: Sow mortality is directly related to financial losses and productive efficiency in pig farms. Despite this, diseases associated with the death of sows are poorly understood. This study aimed determine main causes Brazilian To perform this research, three farms were visited, necropsies performed on all that had died spontaneously or subjected euthanasia. Tissue fragments collected for ...