Circ_ANKIB1 stabilizes the regulation of miR-19b on SOCS3/STAT3 pathway to promote osteosarcoma cell growth and invasion.

Osteosarcoma is a highly malignant tumor. The molecular mechanism of its occurrence and development has not yet been clarified. Current studies have found that noncoding RNAs, such as circular RNAs (circRNAs) and microRNAs (miRNAs), play important regulatory roles in the progression of diseases.

A new p-hydroxybenzoic acid derivative from an endophytic fungus Penicillium sp. of Nerium indicum.

A new p-hydroxybenzoic acid derivative named 4-(2'R, 4'-dihydroxybutoxy) benzoic acid (1) was isolated from the fermentation of Penicillium sp. R22 in Nerium indicum. The structure was elucidated by means of spectroscopic (HR-ESI-MS, NMR, IR, UV) and X-ray crystallographic methods.

A new isoquinolone alkaloid from an endophytic fungus R22 of Nerium indicum.

A new isoquinolone alkaloid named 5-hydroxy-8-methoxy-4-phenylisoquinolin-1(2H)-one (3), together with two known quinolinone alkaloids 3-O-methylviridicatin (1) and viridicatol (2) were isolated from the fermentation of an endophytic fungus Penicillium sp. R22 in Nerium indicum. Their structures were elucidated by NMR, IR and MS data, and were also confirmed by comparing with the reported data in the literature.

Anterior versus posterior approach in the treatment of chronic thoracolumbar fractures.

The purpose of this study was to compare the results of anterior approach vs posterior approach in the treatment of chronic thoracolumbar fractures. A total of 36 patients with chronic thoracolumbar fractures were divided into 2 groups. Group A was treated by an anterior approach and group B was treated by a posterior approach.

Operative versus nonoperative management of Pipkin type-II fractures associated with posterior hip dislocation.

Little has been written on randomized, controlled studies of operative versus nonoperative management of Pipkin type-II fractures associated with posterior dislocation of the hip. It is difficult to validate the optimal management of these fractures. The goals of this study were to (1) evaluate the results of conservative and surgical treatment for Pipkin type-II fractures associated with posterior dislocation of the hip and supply the optimal management for these fractures and (2) identify whether the Smith-Petersen approach is a safe and reliable surgical approach for Pipkin type-II fractures.

[Transpedicular intracorporeal hydroxyapatite grafting and pedicle screw fixation via paraspinal approach for thoracolumbar fractures].

Objective: To investigate the feasibility and safety of the treatment for thoracolumbar fractures with transpedicular intracorporeal hydroxyapatite grafting and pedicle screw fixation via paraspinal approach.

Methods: From June 2007 to December 2008, 19 cases of thoracolumbar fractures were treated with transpedicular intracorporeal hydroxyapatite grafting and pedicle screw fixation via paraspinal approach. There were 7 female and 12 male, ranging from 21 to 57 years of age (mean 40.

[Female genital toxicities of high-frequency electromagnetic field on rats].

Objective: To study on the effects of sub-chronic exposures to high-frequency electromagnetic field (HF-EMF) on the estrous cycle, ovarian pathological changes and related hormones and preliminarily investigate the female genital toxicities of HF-EMF in rats.

Methods: 60 Wistar female adult rats were randomly divided into five groups based on body weight and radiated with different levels of 30 MHz electromagnetic field (0, 25, 100, 400 and 1600 V/m) for eight hours daily. Weekly the rats were continuously exposed five days.

[Treatment of refracture in plate-screw fixation of femoral shaft with plate and xenogenic bony plate].

Objective: To evaluate curative effect of plate and xenogenic bony plate were applied in refracture in plate-screw fixation of femoral shaft.

Methods: Thirteen cases of refracture in plate-screw fixation of femoral shaft included 8 males and 5 females, average age was 31.2 years ranging from 14 to 57.

[Controlled clinical study of treatment of non-operation and surgical operation for scapular fracture].

Objective: To investigate the effect of treatment methods of non-operation and surgical operation for scapular fracture.

Methods: A retrospective analysis of 52 patients (male 37, female 15, ranging in age from 20 to 48 years, meanly 31 years)with scapular fractures was done. According to Hardegger classification: the scapular body fracture in 24 cases, the surgical neck fracture in 12 cases, the anatomical neck fracture in 3 cases, the glenoidal lip fracture in 6 cases, the scapular spine fracrure in 7 cases.

Comparative study on treating complete dislocation of acromioclavicular joint with three different methods.

Objective: To comparatively study complete dislocation of acromioclavicular joint treated with three different methods.

Methods: A total of 96 patients (81 males and 15 females, aged 16-59 years, mean=45 years) with complete dislocation of acromioclavicular joint were treated with Dewar's operation (Group A, n=32), internal fixation with Kirschner tension band wires (Group B, n=44), or internal fixation with Wolter plates (Group C, n=20), respectively, in this study. Eighty-five patients suffered from acute dislocations and eleven from chronic dislocations.