Floating Forearm with Terrible Triad Injury of the Elbow: A Case Report.

Introduction: Floating forearm is rare. Simultaneous terrible triad injury of the elbow is even rarer.

Case Report: A 47-year-old male patient presented with concurrent dorsal perilunate dislocation of the left wrist combined with a terrible triad injury of the left elbow after a fall from the second floor.

A Rare Cause of Compression of the Suprascapular Nerve: The Paraglenoid Cyst.

Introduction: The ductal syndromes of the shoulder combine all the compressive processes of the suprascapular nerve at the level of its passage in the spinoglenoid notch and this for several causes. The most common is a lesion of the labrum resulting in the formation of a cyst. These cysts are rare and often underestimated.

Choledochoduodenal fistula due to peptic duodenal ulcer diagnosed by X-barium meal study: interest of medical treatment.

Peptic ulcer complication has decreased over le last years. Spontaneous bilio-digestive fistulas, in the absence of primary biliary disease, remain a very unusual complication of the upper digestive tract. The choledochoduodenal fistula is an extremely rare entity which can be caused by a duodenal peptic ulcer.

Pott's puffy tumor. A case report.

Pott's puffy tumor is an infrequent entity characterized by a subperiosteal abscess associated with frontal bone osteomyelitis. It is usually seen as a complication of frontal sinusitis. This common condition is usually not diagnosed initially and is easily confused with neoplasms, skin and soft-tissue infection, and infected haematoma.

Unusual nucleotide conformations in GNRA and UNCG type tetraloop hairpins: evidence from Raman markers assignments.

High resolution NMR data on UNCG and GNRA tetraloops (where N is any of the four nucleotides and R is a purine) have shown that they contain ribonucleosides with unusual 2'-endo/anti and 3'-endo/syn conformations, in addition to the 3'-endo/anti ones which are regularly encountered in RNA chains. In the current study, Raman spectroscopy has been used to probe these nucleoside conformations and follow the order (hairpin) to disorder (random chain) structural transitions in aqueous phase in the 5-80 degreesC temperature range. Spectral evolution of GCAA and GAAA tetraloops, as formed in very short hairpins with only three G.

Structural features of the UCCG and UGCG tetraloops in very short hairpins as evidenced by optical spectroscopy.

Structures of the UCCG and UGCG tetraloops formed in octamer ribonucleotidic hairpin sequences, i.e., 5'-r[GC(UCCG)GC]-3' and 5'-r[GC(UGCG)GC]-3', have been studied in aqueous solution by methods of optical spectroscopy.

Common structural features of UUCG and UACG tetraloops in very short hairpins determined by UV absorption, Raman, IR and NMR spectroscopies.

Thermodynamic and structural properties of two UNCG tetraloops in very short hairpin octamers, 5'-r(GCUUCGGC)-3' and 5'-r(GCUACGGC)-3', have been studied by means of various physical techniques. Melting profiles of both octamers, obtained from UV absorption spectra taken as a function of temperature, are consistent with a monophasic, progressive and completely reversible order-to-disorder transition and confirm their unusual structural stability (Tm > 51 degrees C). The 1H, 13C and 31P NMR chemical shifts and coupling constants of the UACG loop nucleotides are comparable with those reported previously for UUCG loops, i.