Low evaluation rate for osteoporosis among patients presenting with a rib fracture.

Unlabelled: This study in a regional hospital setting found a low evaluation rate for osteoporosis among patients presenting with a rib fracture. Increased emphasis or education for osteoporosis evaluation may be necessary in case of rib fractures.

Introduction: Rib fractures from a low-energy trauma are common in the elderly, and a history of rib fracture has been reported to increase the risk for a subsequent osteoporotic fracture.

Preparation of Novel Pyridine-Based Aromatic Polyimides and Effect of Fluorine Functionality.

Novel pyridine-containing linear and branched polyimides (Li-PIs and Br-PIs) were prepared by aromatic diamine and triamine monomers. The fluorinated, non-fluorinated and trifunctional pyridine-based monomers, 4-(4-(trifluoromethylphenyl))-2,6-bis(4-aminophenyl)pyridine (FDAPP), 4-phenyl-2,6-bis(4-aminophenyl)pyridine (DAPP) and 4,4',4"-(pyridine-2,4,6-triyl)tribenzenamine (TAPP) amino compounds were synthesized by a modified Chichibabin reaction of different benzaldehydes and p-nitroacetophenone, followed by a reduction of the resulting nitro compounds with hydrazine monohydrate. Functional amine monomers were used to synthesize a series of pyridine-containing linear and branched polyimides, by polycondensation with aromatic dianhydride in N-Methyl-2-pyrrolidone (NMP) via the conventional two-step method.