Electrochemical Dehydrogenative [3 + 2]/[5 + 2] Annulation of -Arylacrylamides with γ,σ-Unsaturated Malonates via Direct C(sp)-H/C(sp)-H Functionalization.

Herein, we introduce an electrochemical dehydrogenative [3 + 2]/[5 + 2] annulation of easily available -arylacrylamides with γ,σ-unsaturated malonates through C(sp)-H/C(sp)-H functionalization. The employment of inexpensive ferrocene as the redox catalyst allows access to diverse benzo[]azepin-2-ones in moderate to excellent yields without stoichiometric oxidants. This protocol features broad substrate scope and excellent selectivity, and mechanistic studies indicated that the reaction proceeded through the oxidation of a C(sp)-H bond to generate an alkyl radical, radical addition across the C═C bond, [3 + 2]/[5 + 2] annulations, and C(sp)-H functionalization cascades.

[The significance of ultrasound and mammography in the diagnosis of fat necrosis after fat transplantation in breasts].

Objective: To investigate the significance and images characters of ultrasound and mammography in the diagnosis of fat necrosis after fat transplantation in breasts(FTB).

Methods: From June 2005 to June 2012, 13 cases with 96 fat necrosis lumps after FTB, were retrospectively reviewed. The pre-operative images of ultrasound and mammography, as well as the post-operative histologic results were collected.

[Ultrasonographic study on the relationship between the thickness of squamous cell carcinoma of tongue and cervical lymph node metastasis].

Purpose: This study aims to investigate the correlation between the thickness of the tongue carcinoma and cervical lymph node metastasis obtained with ultrasonography.

Methods: The tumor thickness of 37 primary tongue cancers were measured in the sonogram by the intraoral ultrasonography. The cervical lymph nodes were scanned, and the number, size, internal echo, and blood stream were measured to evaluate the nature.

Autologous fat grafting to the breast for cosmetic enhancement: experience in 66 patients with long-term follow up.

Background: Autologous fat grafting to the breast for cosmetic enhancement remains controversial because the efficacy and fate of fat grafting to the breast are primarily unknown. In this report, we present our retrospective study in 66 patients who underwent autologous fat grafting to the breast for various cosmetic reasons and who were followed with sonography, mammography, or magnetic resonance imaging (MRI).

Methods: Sixty-six patients who desired cosmetic enhancement of the breast for various reasons underwent autologous fat transplantation between August 2000 and March 2005 in our institution.

[The biological properties of VX-2 squamous cell carcinoma model in different sites of rabbit tongue and cervical lymph node metastasis].

Purpose: To make a VX-2 squamous cell carcinoma model in different sites of rabbit tongue and cervical lymph node metastasis and study its biological properties, in order to offer a research platform for multidisciplinary therapy of tongue carcinoma.

Methods: Twenty New-Zealand white rabbits were divided into four groups, five in each group, which were implanted with VX-2 squamous cell carcinoma tissue pieces. Tumor growth, volume change, tumor-bearing rate, metastasis rate of cervical lymph node, site and quantity of lymph node metastasis and rabbits' survival period were observed and recorded.

[The relationship between the calcaneus density and the degree of inflammation in patients with generalized aggressive periodontitis].

Purpose: To evaluate the relationship between the calcaneus density and the degree of inflammation in patients with generalized aggressive periodontitis.

Methods: Thirty one volunteers with healthy periodontium (as control group) and 38 patients with generalized aggressive periodontitis (as experimental group) were involved in this study. The average ages of the two groups were 27 and 23 years respectively.

[Duplex ultrasonography and internal pudendal arteriogram in the diagnosis of trauma-associated arteriogenic erectile dysfunction (a report of 7 cases)].

Objective: To make a comparative study of duplex ultrasonography (DU) and internal pudendal arteriogram (IPA) in the diagnosis of trauma-associated arteriogenic erectile dysfunction (ED).

Methods: Seven patients suffering from arteriogenic erectile dysfunction caused by pelvic fracture trauma underwent comprehensive history inquiries and physical examinations by duplex ultrasonography and internal pudendal arteriogram, which ruled out neurogenic erectile dysfunction.

Results: DU suggested penile artery blood flow injury, and IPA indicated artery injury in all the cases, including left internal pudendal artery injury, right or left common penile artery injury and bilateral common penile artery injury.