Objective:To investigate the role of CD46 and Nectin-4 on Measles virus (MV) infecting human pulmonary alveolar epithelial cells (HPAEpiC),and the interaction between CD46 and Nectin-4.Methods: Measles virus was divided into pre-infection group and 2 h-infection group,HPAEpiCs treatment with anti-CD46 antibody and/or anti-Nectin-4 antibody as experimental groups,and untreated HPAEpiCs as a control.The variation of viral replication level was detected.A Co-immunoprecipitation assay (Co-IP) was used to explore whether CD46 and Nectin-4 had interactive relationship in MV infection.Results: Compared with the control group,MV titers were reduced in HPAEpiCs of the pre-infection group treated with anti-CD46 and anti-Nectin-4 respectively (48.03% and 49.53%).Furthermore,virus titers showed a more reduction in which treated with anti-CD46 and anti-Nectin-4 antibodies (27.15%,P<0.01).Western blot and Real-time PCR showed that anti-CD46 antibody and anti-Nectin-4 antibodies decreased the rate of MV infection.In the 2 h-infection group,however,the treatment with anti-CD46 and anti-Nectin-4 could significantly reduce the MV titer and NP protein in HPAEpiCs.The Co-IP assay showed that there were interaction between CD46 and Nectin-4.Conclusion: CD46 and Nectin-4 mediated MV infecting HPAEpiCs.Moreover,CD46 and Nectin-4 may play a synergetic role in MV infection,which could enhance the infection effect.

Objective:To study the functional connectivity (FC) and metabolic effective connectivity (MEC) patterns of the default mode network (DMN) in healthy male adults based on a novel hybrid PET/MR system.Methods:Fifteen healthy male adults with median age of 29 years were recruited locally in Xi′an from January to May 2019. All subjects went through PET/MR scan to get the whole brain 18F-fluorodeoxyglucose (FDG) PET, resting-state functional MRI (fMRI) and magnetization prepared rapid gradient echo (MPRAGE) T 1 weighted imaging data. CONN18b and statistical parametric mapping (SPM) 12 softwares were used to analyze data. The voxel-wise FC and FDG metabolic data were extracted within 4 sub-networks of DMN, which included medial prefrontal cortex (MPFC), posterior cingulate cortex (PCC) and bilateral lateral parietal (LP). The FC and MEC between 4 sub-networks were calculated based on merged resting-state fMRI and metabolic data, and analyzed by one-sample t test separately, with Bonferroni correction. Results:FC pathways were all significant within 4 sub-networks of DMN ( t values: 6.00-7.71, all P<0.008, Bonferroni corrected). Meanwhile, there were significant bi-directional MEC between MPFC and PCC(MPFC to PCC: t=10.03; PCC to MPFC: t=3.73, both P<0.004, Bonferroni corrected), as well as between bilateral LP (LP_L to LP_R: t=5.28; LP_R to LP_L: t=4.76, both P<0.004, Bonferroni corrected). There were significant uni-directional MEC from both MPFC and PCC to bilateral LP ( t values: 3.44-6.93, all P<0.004, Bonferroni corrected). Conclusions:Special FC and MEC patterns exist within DMN. The closely interrelated MPFC and PCC play more important roles in DMN, and they may mediate LP jointly. The novel integrated PET/MR system will bring new perspective on the organization of brain networks, which may deepen the comprehensive understanding of DMN.

Traditional blepharoplasty has a role in improving pseudoherniation of orbital fat. However, it ignored the deep lid-cheek junction, which is a significant periorbital changes associated with aging. With the enhanced understanding of the anatomy of the lid-cheek junction, multiple techniques have developed to address how to blend the lid-cheek junction. The aim of this review is to provide current evidence on various techniques used to obtain a youthful lid-cheek junction and to show the role of blending the lid-cheek junction in modern lower blepharoplasty.

Extracranial arteriovenous malformation (AVM) is a high-flow vascular malformation, of which the first-line therapies including surgery and ethanol embolization are of high risk. Besides, the outcomes of complex cases are usually poor. Therefore, it is urgent to accelerate the development of target therapy for extracranial AVM, based on the discoveries in pathogenesis and genetics. Breakthroughs have been made on the genetic research of extracranial AVM, as somatic mutations of RAS/RAF/MAPK signaling pathway genes have been found in this entity. Genetic polymorphism and epigenetics might also play important role in the development of the disease. Several anti-angiogenic treatment emerge therapeutic effects on extracranial AVM, meanwhile high-throughput proteomics ignites the sparks of precision medicine. This review focuses on the advancement in the pathogenesis, genetics and target therapy related to extracranial arteriovenous malformations.

Extracranial arteriovenous malformation (AVM) is a high-flow vascular malformation, of which the first-line therapies including surgery and ethanol embolization are of high risk. Besides, the outcomes of complex cases are usually poor. Therefore, it is urgent to accelerate the development of target therapy for extracranial AVM, based on the discoveries in pathogenesis and genetics. Breakthroughs have been made on the genetic research of extracranial AVM, as somatic mutations of RAS/RAF/MAPK signaling pathway genes have been found in this entity. Genetic polymorphism and epigenetics might also play important role in the development of the disease. Several anti-angiogenic treatment emerge therapeutic effects on extracranial AVM, meanwhile high-throughput proteomics ignites the sparks of precision medicine. This review focuses on the advancement in the pathogenesis, genetics and target therapy related to extracranial arteriovenous malformations.

Objective: To explore and evaluate the approach of fat repositioning into premaxillary and prezygomatic spaces combined with intraoral fixation in transconjunctival lower blepharoplasty. Methods: 17 patients (2 males and 15 females) who underwent this approach from Aug, 2018 to Feb, 2019 were reviewed. Their average age was 36.88±8.80 years old (range, 24 to 55 years old). A 1.0-1.5 cm transverse transconjunctival incision was made. After blunt dissection of premaxillary and prezygomatic spaces, orbital fat were released and sutured with 1-2 absorbable sutures. Via the guidance of astraight needle through the a forementioned spaces, a small incision was made at the upper vestibular labial side. The orbital fat was pulled down according to the consensus between surgeon and patient and fixed upon the small intraoral incision. All incisions didn′t need to be sutured. Results: The mean follow up was 3.53±1.71 months (range, 1 to 6 months), transconjunctival and intraoral incisons healed well. Palpebral bags and tear trough deformity were obviously improved. Postoperatively, 2 patients felt a transient tractive feeling in the midface region 1 week after surgery, which spontaneously recovered within 1 to 2 weeks. One patient had red, swollen and painful skin beside the right nasal alar one month after the operation, and the symptoms disappeared after 3-day intravenous infusion of cefradine. No lower eyelid retraction, ectropion, hematoma and other complications were observed. Conclusions This novel approach can achieve periorbital rejuvenation and improve the contour of the lower eyelid and mid-face for patients of all the ages with eyelid bags, tear trough deformity, and midfacial depression, but without severe skin laxity.

Arteriovenous malformation (AVM) is defined as a congenital vascular anomaly that shunts blood from arteries to veins with no capillary perfusion. In some rare hereditary diseases, including capillary malformation-arteriovenous malformation (CM-AVM), hereditary hemorrhagic telangiectasia (HHT), PTEN hamartoma-tumor syndrome (PHTS), AVM is generally considered the characteristic clinic presentation. This review primarily focused on the mechanisms of genetic regulation during embryonic vasculature development, genetic mutations in TGF-beta signaling pathway of HHT, PTEN mutations in PHTS and genetic screening of CM-AVM. In addition, current findings in somatic mutations of extracranial AVM were discussed as well. This review aimed to provide insight into the etiology to help the diagnosis and treatment of extracranial AVM in clinic.

Extracranial arteriovenous malformation (AVM) is a rare but high-risk entity of all vascular malformations. Endovascular and surgical treatments become relatively well accepted. Challenges and dilemmas, however, still exist in the diagnosis and management of extracranial AVM. This up-to-date review focuses on the diagnosis and treatment of early-stage extracranial AVM, genetics and pathogenesis, the innovation and experience of surgical and endovascular techniques, and the development and expansion of novel embolization agents. In addition, we recognize that capillary malformation-arteriovenous malformation (CM-AVM), a special type of AVM, merits more investigation, in particular, in genetics and its relationship with AVM. This review proposes urgent issues and prospects for pioneers and experts to study extracranial AVM, so as to contribute to the advancement of this field.

Objective:To investigate the diagnostic method and genetic basis of capillary malformation-arteriovenous malformation 2(CM-AVM2).Methods:A retrospective analysis of clinical data of CM-AVM2. The patients who came to the Department of Plastic and Reconstructive Surgery of Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine from January 2019 to January 2020. Literature related to CM-AVM was searched through PubMed database, CNKI, and SinoMed, and the clinical manifestations and diagnostic methods of CM-AVM2 were analyzed based on the collected case data and literature.Results:2 patients with systemic sporadic atypical erythema also with the mutation of EPHB4, and none of them were associated with high-flow vascular malformation. A total of 3 literatures on CM-AVM2 were retrieved and screened. Combined with the literature and 2 cases, it is concluded that CM-AVM2 is often manifested as atypical erythema similar to CM-AVM, which can be combined with high-flow vascular malformation, and the genetic test of EPHB4 gene mutation can be clearly diagnosed of CM-AVM2. Conclusions:Clinical manifestations, family history and genetic test are effective diagnostic method for CM-AVM. Moreover, the abnormal sprouting angiogenesis cause by EPHB4 mutation may be the mechanism of CM-AVM2.

Thanks to the development of computer science, display technology and tracking technology in recent years, virtual reality and augmented reality catch more and more people’s eyes. At the same time, this new technology has been applied to many different industries, and it has huge practical value and broad prospect in healthcare, especially in plastic surgery. In this article we review the basic concept of virtual reality and augmented reality and introduce their practical applications in plastic surgery (preoperative planning, intraoperative guiding and surgical training), providing an outlook for further development in this field.