Recovering dense 3D point clouds from single endoscopic image.

Background And Objective: Recovering high-quality 3D point clouds from monocular endoscopic images is a challenging task. This paper proposes a novel deep learning-based computational framework for 3D point cloud reconstruction from single monocular endoscopic images.

Methods: An unsupervised mono-depth learning network is used to generate depth information from monocular images.

[Closed suction drainage to prevent postoperative complications after parotidectomy: a systematic review].

Purpose: To evaluate the efficacy and safety of closed suction drainage for prevention of postoperative complications after parotidectomy.

Methods: Pubmed, Cochrane Controlled Trials Register, Embase, Open Sigle, CBM, VIP and Wanfang database were searched electronically from the date of their establishment to May 10,2013. Hand-searching covering 19 relevant Chinese journals were also performed, and the literature of randomized controlled trials comparing closed suction drainage and open drainage for prevention of postoperative complications after parotidectomy were included.

[Alcohol withdrawal syndrome associated with oral cancer operation: a case report].

Alcohol withdrawal syndrome (AWS) is a rare complication associated with oral cancer operation. This article reported a case of AWS after resection of squamous cell cancer of the right floor of mouth combined with radical neck dissection and trapezius myocutaneous flap reconstruction. The discussion included diagnosis, treatment and prevention of AWS.

Derived vascular endothelial cells induced by mucoepidermoid carcinoma cells: 3-dimensional collagen matrix model.

Mucoepidermoid carcinoma undergoes uniquely vigorous angiogenic and neovascularization processes, possibly due to proliferation of vascular endothelial cells (ECs) induced by mucoepidermoid carcinoma cells (MCCs) in their three-dimensional (3D) microenvironment. To date, no studies have dealt with tumor cells and vascular ECs from the same origin of mucoepidermoid carcinoma using the in vitro 3D microenvironment model. In this context, the current research aims to observe neovascularization with mucoepidermoid carcinoma microvascular ECs (MCMECs) conditioned by the microenvironment in the 3D collagen matrix model.

[Expression and significance of basic fibroblast growth factor and transforming growth factor-beta 1 in mucoepidermoid carcinoma with different malignant degree].

Objective: To study the expression and significance of basic fibroblast growth factor(bFGF)and transforming growth factor-beta 1 (TGF-beta1) in mucoepidermoid carcinomas with different malignant degree.

Methods: Using immunohistochemistry (IHC) staining technique, bFGF and TGF-beta1 proteins in the mucoepidermoid carcinoma tissues with different malignant degree, including well-differentiated, moderately differentiated and poorly differentiated mucoepidermoid carcinoma, and normal salivary gland tissue were detected.

Results: The positive rate of bFGF and TGF-beta1 in normal salivary glands were apparently lower than those in malignant mucoepidermoid carcinomas (P<0.

[Facial multiple malignant proliferating tricholemmoma: a case report].

Malignant proliferating tricholemmoma is a very rare dermatic annexal tumor originated from outer root sheath cells. In this article, a case of facial multiple malignant proliferating tricholemmoma was reported, and its clinical pathologic features, differential diagnosis, treatment methods and histogenesis were discussed by reviewing relevant literatures.

[Embolization and degradation of arteries in vivo by pingyangmycin albumin microspheres].

Objective: To investigate the embolization effect of Pingyangmycin-albumin microspheres (PYM-AMS) on small arteries and its process of degradation in vivo.

Methods: Twenty four Japanese white rabbits were randomly divided into four groups, 6 in each group. PYM hydrochloride + 0.

[Intralesional Pingyangmycin therapy for 51 infantile patients with parotid gland hemangiomas].

Purpose: To investigate the indication and outcome of intralesional Pingyangmycin (PYM) therapy for parotid gland hemangiomas in early childhood.

Methods: 51 infantile patients with hemangiomas in the parotid gland were studied retrospectively, which had been treated in the clinic of West China Hospital of Stomatology, Sichuan University during the 15-year period from May 1990 to May 2005. In this study, 21 were male, 30 were female, and the ratio of male to female was 1:1.

Correlation between the expression of thrombospondin-1 and neovascularization in mucoepidermoid carcinoma.

Background: Researchers have recently demonstrated that thrombospondin-1 (TSP-1) has an important function in regulating neovascularization. Whether it inhibits or accelerates neovascularization, however, is still controversial. We found few reports about the correlation between TSP-1 and vascularization in mucoepidermoid carcinoma.

[Correlation between the expression of thrombospondin-1 and the angiogenesis in mucoepidermoid carcinoma].

Objective: To study the relationship between the expression of thrombospondin-1 (TSP-1) and the angiogenesis in mucoepidermoid carcinoma.

Methods: Immunohistochemistry were applied to detect the expression of TSP-1 and the value of microvessel density (MVD) in 45 mucoepidermoid carcinoma patients.

Results: Positive expressions of TSP-1 protein were detected in 26 of the 45 (57.

[The expression of inhibitor-1 of DNA binding/differentiation-1 and thrombospondin-1 in mucoepidermoid carcinoma of different malignant degree].

Objective: To study the expression of inhibitor-1 of DNA binding/differentiation-1 (Id-1) and thrombospondin-1 (TSP-1) genes in mucoepidermoid carcinoma of different malignant degree and analyze the relationship between them.

Methods: Using immunohistochemistry (IHC) staining technique, TSP-1 and Id-1 proteins in the mucoepidermoid carcinoma of different malignant degree, including well-differentiated, moderately differentiated and poorly differentiated mucoepidermoid carcinoma, and normal salivary gland tissues were detected.

Results: The positive rate of Id-1 and TSP-1 in normal salivary glands were apparently lower than that in malignant mucoepidermoid carcinoma(P = 0.

Malignant sublingual gland tumors: a retrospective clinicopathologic study of 28 cases.

Objectives: To evaluate the clinicopathologic features and therapeutic efficacy of malignant sublingual gland tumors.

Patients And Methods: From 1955 to 2005, the clinicopathologic data of 28 patients treated in our hospital were obtained from their medical records and histopathologic slides.

Results: There were 16 males and 12 females, with a mean age of 50.

[Cancer stem cells: its existence, proliferation and differentiation in an adenoid cystic carcinoma cell line].

Objective: To investigate the evidences of the presence of tumor stem cells and its impact on the tumorigenesis of adenoid cystic carcinoma cell (ACC)-2 cell line by analyzing the biologic characteristics of different sub-clones of adenoid cystic carcinoma cell line.

Methods: In vitro individual cell culture was employed to observe the proliferating character of ACC-2 cells. The expression of CD44(+) and CD24(-) of ACC-2 cells were investigated by immunohistochemical.

[A retrospective clinicopathologic study of 30 cases of sublingual gland malignant tumors].

Objective: To assess the clinical and histological features and therapeutic efficacy of 30 cases of malignant sublingual salivary gland tumors.

Methods: The clinicopathologic data of 30 patients with malignant sublingual salivary gland tumor were obtained from West China Hospital of Stomatology, Sichuan University from 1955 to 2005.

Results: There were 18 male and 12 female, and the average age of patients was 50.

[Analysis of gene expression of fatty acid synthase in squamous cell carcinoma of the oral cavity by the method of real-time quantitative PCR].

Objective: To relatively quantify the gene expression of fatty acid synthase in squamous cell carcinoma, adjacent tissue, and some normal oral tissues by real-time quantitative PCR.

Methods: The tissues were collected fresh from surgical specimens. The collected tissues were minced.

[The changes of bacteria group on oral mucosa after radiotherapy of postoperative patients of oral carcinoma].

Objective: To investigate the microbial contents presented on the surface of mucosa in the oral cavity of patients who accepted radiotherapy, and to provide the evidences of controlling post-radiotherapeutic infections.

Methods: 32 patients (19 males and 13 females) aged from 37 - 72 received radiotherapy after oral squamous cell carcinomas operation were selected. Samples of saliva were obtained from the radiated center and opposite mucosa before and after radiotherapy.

[An experirmental study on the preparation and drug sustained release characteristics of Pingyangmycin Albumin Microspheres].

Objective: The aim of this study was to prepare Pingyangmycin Albumin Microspheres (PYM-AMS) for arteriovenous malformations treatment.

Methods: PYM-AMS was prepared at 140 degrees C by the method of emulsification-heat solidification and its characteristics were evaluated, such as morphosis, particle size, drug loading (DL%), encapsulation efficiency (EE%), stability and drug sustained-releasing in vitro. After being packaged, PYM-AMS were sterilized with 13.

[Effects of Pingyangmycin albumin microspheres on sclerostenosis of the rabbit central auricular arteries].

Purpose: The aim of this study was to investigate the mechanism of Pingyangmycin-albumin microspheres (PYM-AMS) acted on the rabbit central auricular arteries.

Methods: In the study of randomized block design, 24 Japanese white rabbits were divided into 4 groups, 6 rabbits in each group. The animals were put on the operation table after being anaesthetized by intramuscular injection of Xumianxin (0.

[Human oral carcinoma-associated fibroblasts: its cultivation, purification and identification].

Objective: To separate, cultivate, purify and identify oral carcinoma-associated fibroblasts (CAFs) preliminarily.

Methods: The primary oral CAFs and normal fibrolasts (NFs) of oral mucosa were obtained by tissue culture. Then cells were dissociated by 0.