Influences of Schneiderian membrane conditions on the early outcomes of osteotome sinus floor elevation technique: a prospective cohort study in the healing period.

Objectives: To radiographically investigate early outcomes of osteotome sinus floor elevation in the healing phase utilizing cone beam computed tomography and evaluate influences of Schneiderian membrane conditions.

Material And Methods: One hundred patients were consecutively recruited for osteotome sinus floor elevation (OSFE) surgery using deproteinized bone mineral. CBCT was taken prior to (T0), immediately post-operatively (T1), and after the healing period (T2).

[The RHD zygosity in Dong ethnic population in the southeast area of Guizhou province].

Objective: To investigate the RHD zygosity distribution and the genetic characteristics of RHD gene in the Dong ethnic population in southeast area of Guizhou province.

Methods: Based on the characteristics of Chinese RHD and the RHD specific deletion, two pairs of primers specific for hybrid Rhesus box and exon 1 of RHD respectively, were designed, combined with a pair of internal control primers. Polymerase chain reaction was performed to genotype the samples.

[The abnormality of FcgammaRIIB1-mediated signaling and the hyperactivity of B cells from patients with systemic lupus erythematosus].

Aim: To evaluate the effect of FcgammaRIIB(1) (CD32) representative self-inhibitory adjustive mechanism of B cells on pathogenesis of systemic lupus erythematosus (SLE) by observing the expression characteristic and functional state of molecules on the surface of B cells from SLE patients.

Methods: The peripheral blood mononuclear cells (PBMC) were prepared by density gradient centrifugation, and the B cells were isolated from PBMC by magnetic activated cell sorting (MACS). The fluxes of intracytoplasmic calcium ([Ca(2+)](i)) of B cells activated by different activators were measured by fluorescence spectrophotometric method.