Midterm Results of Total Hip Arthroplasty in Patients With High Hip Dislocation After Suppurative Hip Arthritis.

Background: Total hip arthroplasty (THA) is technically challenging in patients with high dislocation of the hip secondary to suppurative arthritis. The technical difficulty is attributable to the complex hip anatomy and the potential risk of recurrent infection in these patients. This study investigated the midterm results of THA in patients with Crowe type III and IV high dislocation of the hip secondary to suppurative arthritis.

miR156 switches on vegetative phase change under the regulation of redox signals in apple seedlings.

In higher plants, miR156 regulates the vegetative phase change via the target SBP/SPL genes. The regulation of miR156 during ontogenetic processes is not fully understood. In the apple genome, of 31 putative MdMIR156 genes that encode pre-miR156, seven were dominantly expressed.

[Spectroscopic Research on Slag Nanocrystal Glass Ceramics Containing Rare Earth Elements].

The research group prepared the high-performance slag nanocrystal glass ceramics by utilizing the valuable elements of the wastes in the Chinese Bayan Obo which are characterized by their symbiotic or associated existence. In this paper, inductively coupled plasma emission spectroscopy (ICP), X-ray diffraction (XRD), Raman spectroscopy (Raman) and scanning electron microscopy (SEM) are all used in the depth analysis for the composition and structure of the samples. The experiment results of ICP, XRD and SEM showed that the principal crystalline phase of the slag nanocrystal glass ceramics containing rare earth elements is diopside, its grain size ranges from 45 to 100 nm, the elements showed in the SEM scan are basically in consistent with the component analysis of ICP.

Redox homeostasis and reactive oxygen species scavengers shift during ontogenetic phase changes in apple.

The change from juvenile to adult phase is a universal phenomenon in perennial plants such as apple. To validate the changes in hydrogen peroxide (H2O2) levels and scavenging during ontogenesis in apple seedlings, the H2O2 contents, its scavenging capacity, and the expression of related genes, as well as miR156 levels, were measured in leaf samples from different nodes in seedlings of 'Zisai Pearl' (Malus asiatica)×'Red Fuji' (M. domestica).

The function of PlcR in Bacillus anthracis vaccine strain A16R.

Bacillus anthracis, B. thuringiensis and B. cereus are members of the B.

[Effect of temperature on the structure of CaO-MgO-Al2O3-SiO2 nanocrystalline glass-ceramics studied by Raman spectroscopy].

In the present paper, nanocrystalline glass-ceramic of CaO-MgO-Al2O3-SiO2 system was produced by melting method. The CaO-MgO-Al2O3-SiO2 nanocrystalline glass-ceramic was measured by Raman spectroscopy in the temperature range from -190 to 310 degrees C in order to study the effect of temperature on the structure of this system nanocrystalline glass-ceramics. The results showed that different non-bridge oxygen bond silicon-oxygen tetrahedron structural unit changes are not consistent with rising temperature.

Genetic inactivation of the adenosine A2A receptor attenuates pathologic but not developmental angiogenesis in the mouse retina.

Purpose: The adenosine A(2A) receptor (A(2A)R) modulates normal vascularization and pathologic angiogenesis in many tissues and may contribute to the pathogenesis of retinopathy of prematurity (ROP) characterized by abnormal retinal vascularization in surviving premature infants. Here, the authors studied the effects of the genetic inactivation of A(2A)R on normal retinal vascularization and the development of pathologic angiogenesis in oxygen-induced retinopathy (OIR), an animal model of ROP.

Methods: After exposure to 75% oxygen for 5 days (postnatal day [P] 7-P12) and subsequently to room air for the next 9 days (P13-P21), we evaluated retinal vascular morphology by ADPase staining in retinal whole mounts, retinal neovascularization response by histochemistry in serial retinal sections, and retinal VEGF gene expression by real-time PCR analysis in A(2A)R knockout (KO) mice and their wild-type (WT) littermates.

Effects of low-intensity pulsed ultrasound in repairing injured articular cartilage.

Objective: To investigate the effects of low-intensity pulsed ultrasound in repairing injured articular cartilage.

Methods: Ten adult New Zealand rabbits with bilateral full-thickness osteochondral defects on the cartilage surface of intercondylar fossas were used in this study. The wounds in the left knees were treated with low-intensity pulsed ultrasound as the experimental group.