Co-transport of Cr(VI) and Bentonite Colloid in Saturated Porous Media.

Transport of Cr(VI) at the presence of bentonite colloid was carried out in saturated porous media of 16-18 mesh and 40-60 mesh sand columns. Effects of flow rate, pH, ion strength, humic acid and bentonite concentrations on Cr(VI) migration were investigated. The results show that the increase of flow rate accelerated the breakthrough of Cr(VI) and BP, but the transport mass of dissolved Cr(VI) decreased by ~ 15.

Insight into biomass feedstock on formation of biochar-bound environmentally persistent free radicals under different pyrolysis temperatures.

Environmentally persistent free radicals (EPFRs) in biochars have the ability of catalytic formation of reactive oxygen species, which may pose potential oxidative stresses to eco-environment and human health. Therefore, comprehending the formation and characteristics of EPFRs in biochars is important for their further applications. In this study, the woody lignocellulosic biomass (wood chips, pine needle and barks), non-woody lignocellulosic biomass (rice husk, corn stover, and duckweed), and non-lignocellulosic biomass (anaerobically digested sludge) were selected as biomass feedstock to prepare biochars under different pyrolysis temperatures (200-700 °C).

Extracellular HMGB-1 activates inflammatory signaling in tendon cells and tissues.

Background: Increasing evidence indicates that secretion of high mobility group box 1 protein (HMGB-1) is functionally associated with tendinopathy development. However, the underlying effect and mechanism of extracellular HMGB-1 on tendon cells are unclear.

Methods: We tested the effect of exogenous HMGB-1 on cell growth, migration, and inflammatory signaling responses with isolated rat Achilles tendon cells.

[Role of TLR4/NF-κB pathway for early change of synovial membrane in knee osteoarthritis rats].

Objective: To study role of TLR4/NF-κB pathway for early change of synovial membrane in knee osteoarthritis rats.

Methods: Eighteen male SD rats weighted (200±20) g were randomly divided into 2 groups, namely control and model group, and 9 in each group. Knee OA model group was established by using modified Hulth method in model group.

USING ARTHROSCOPY TO OBSERVE THE EFFECT OF LIVER-SOFTENING MEDICINE ON KNEE OSTEOARTHRITIS.

Background: Arthroscopy was used to observe the clinical effect of liver-softening medicine for treating knee osteoarthritis (OA).

Materials And Methods: Forty knee OA patients with cartilage classifications of Outerbridge grade II, III, or II plus III determined via arthroscopy were randomly assigned to a treatment of liver-softening medicine plus glucosamine or a control treatment of glucosamine alone. Clinical observation and determination of the comprehensive effect score were performed at 60, 120, and 180 days.

Comparison of Polyethylene Wear before and after Hip Revision with Liner Exchange Fixed with the Original Locking Mechanism.

Objective: To compare the wear of conventional ultra-high molecular weight polyethylene (CUHMWPE) and highly cross-linked polyethylene (HCLPE) in hip revision with liner exchange fixed with original locking mechanism using analysis of history medical data.

Methods: From Jan. 1, 2000, to Dec.

Open vs. closed reduction combined with minimally invasive plate osteosynthesis in humeral fractures.

Aim To explore a more effective surgical procedure, the outcomes of closed manipulative reduction (CMR) combined with minimally invasive plate osteosynthesis (MIPO) and conventional open reduction and internal fixation (ORIF) for treating proximal humeral fractures were compared. Material and methods In a retrospective study of patients operated for humerus shaft fractures from April 2008 to July 2011, the outcomes of 33 patients treated with CMR/MIPO were compared with the outcomes of 42 patients treated with ORIF. The fractures were classified, and the incision length, blood transfusion, operating time, as well as the VAS (Visual Analog Scale) pain scores were analyzed.

Interlocking intramedullary nail fixation with additional bone grafting from trochanter via a femoral hollow trephine in the treatment of femoral shaft fractures: design and clinical application.

Purpose: The purpose of this study was to describe and evaluate the clinical application of the technique of interlocking intramedullary (IM) nailing via an entry point at the tip of greater trochanter using a specially designed femoral hollow trephine to stabilize diaphyseal fractures of the femur.

Methods: From February 2010 to April 2014, 35 consecutive patients with femoral shaft fractures were treated by the therapy of bone grafting from trochanter region with interlocking IM nail. The average age of these 23 male and 12 female patients was 37.

[Bridging fixation with locking plate for the treatment of subtrochanteric femoral fractures of Seinsheimer type V].

Objective: To investigate the clinical effect of bridging fixation with locking plate for the Seinsheimer type V subtrochanteric femoral fracture.

Methods: From March 2009 to September 2014,18 cases of Seinsheimer type V subtrochanteric femoral fracture were treated by open reduction and bridging fixation with locking plate through proximal and distal approach including 16 males and 2 females with an average age of 41 years old ranging from 22 to 67 years old. Among them, 12 cases caused by traffic accident, 5 cases by falling, 1 case by heavy aboving.

Changes of mesenchymal stromal cells mobilization and bone turnover in an experimental bone fracture model in ovariectomized mice.

Objective: The aim of this study was to characterize the mesenchymal stromal cells (MSCs) and endothelial progenitor cells (EPCs) mobilization, and bone turnover in osteoporotic fracture healing in ovariectomized mice.

Methods: In total, 112 female C57/BL mice were divided into two groups. The first group was sham-operated (SO), and the other group was ovariectomized (OVX).

Preparation of an rhBMP-2 loaded mesoporous bioactive glass/calcium phosphate cement porous composite scaffold for rapid bone tissue regeneration.

In this work, a novel composite scaffold was constructed by combining mesoporous bioactive glass (MBG) and calcium phosphate cement (CPC) materials using a simple centrifugal embedding approach. Furthermore, recombinant human bone morphogenetic protein-2 (rhBMP-2) was facilely incorporated into this scaffold through a freeze-drying process. It is found that the resultant scaffold not only presents a hierarchical pore structure (interconnected pores of around 200 μm and 2-10 μm) and a sufficient compressive strength (up to 1.

Influence of pain severity on health-related quality of life in Chinese knee osteoarthritis patients.

Objective: The aim of this cross-sectional study was to examine the relationship among pain and other symptoms intensity, and health-related quality of life (HRQoL) in Chinese patients with knee osteoarthritis (OA).

Methods: The study was cross-sectional, descriptive, and correlational. A convenience sample of 466 patients with knee OA was recruited in the study.

Ovariectomy-Induced Osteopenia Influences the Middle and Late Periods of Bone Healing in a Mouse Femoral Osteotomy Model.

Objective: It is known that bone healing is delayed in the presence of osteoporosis in humans. However, due to the complexities of the healing of osteoporotic fractures, animal models may be more appropriate for studying the effects of osteoporosis in more detail and for testing drugs on the fracture repair process. The purpose of this study was to investigate the influence of ovariectomy-induced osteopenia in bone healing in an open femoral osteotomy model, and to test the feasibility of this model for evaluating the healing process under osteopenic conditions.

Inhibitory effects of ursolic acid on osteoclastogenesis and titanium particle-induced osteolysis are mediated primarily via suppression of NF-κB signaling.

Ursolic acid (UA), a pentacyclic triterpenoid found in a variety of plants, has attracted considerable attention because of its important biological and pharmacological activities. However, its effect on osteoclasts and mechanism of action require further investigation. In this study, we evaluated the effects of UA on osteoclastogenesis and osteoclast-mediated osteolysis in vitro and in vivo, and explored its possible mechanism of action.

Ultrasound treatment for accelerating fracture healing of the distal radius. A control study.

Purpose: To investigate the accelerating effects of low-intensity pulse ultrasound stimulation (LIPUS) on the fracture healing of distal radius.

Methods: A total of 81 patients with distal radius fracture were randomly divided into two groups: the ultrasound treatment group and the control group. Patients in the ultrasound treatment group were immobilized in a below-elbow cast and received LIPUS treatment 15 min/day, while the control group were immobilized by a plaster support and cast.

[Study on distribution features of tender points in patients with knee osteoarthritis by cluster analysis].

Objective: To observe the distribution features of tender points in knee of patients with knee osteoarthritis in order to provide evidences for the treatment and diagnosis.

Methods: From November 2011 to December 2012,86 patients with knee osteoarthritis were recruited, including 21 males and 65 females, ranging in age from 45 to 85 years old, with an average of (59.98 +/- 8.

Liver X receptor α inhibits osteosarcoma cell proliferation through up-regulation of FoxO1.

Background: Osteosarcoma is the most common primary bone malignancy of adolescents and young adults.

Methods: We analyzed liver X receptor α (LXRα) mRNA expression in 16 pairs of human osteosarcoma tissues and adjacent noncancerous tissues. Moreover, we investigated LXRα's potential role in regulating cell proliferation in Saos-2 and U2OS cells.

[Close reduction combined with minimally invasive percutaneous plate osteosynthesis for proximal and distal tibial fractures: a report of 56 patients].

Objective: To evaluate the clinical effects of close reduction combined with minimally invasive percutanous plate osteosynthesis (MIPPO) for proximal and distal tibial fractures.

Methods: From March 2007 to December 2010, 56 patients with proximal and distal tibial fractures were treated with close reduction combined with MIPPO technique. There were 39 males and 17 females,aged from 22 to 67 years with an average of 41.

[Study on the diagnostic value of whole-organ magnetic resonance imaging score (WORMS) in knee osteoarthritis].

Objective: To explore the diagnostic value of whole-organ magnetic resonance imaging score (WORMS) in knee osteoarthritis (KOA).

Methods: From November 2009 to January 2011,70 patients with KOA combined with knee effusion among outpatient and inpatient were analyzed retrospectively. Among the patients, 12 patients were male, 58 patients were female,ranging in age from 46 to 75 years,with a mean age of (59.

[A study of proximal humerus fractures using close reduction and percutaneous minimally invasive fixation].

Objective: To investigate the clinical effects of close reduction and percutaneous minimally invasive fixation in the treatment of proximal humerus fractures.

Methods: From April 2008 to March 2010, 28 patients with proximal humerus fracture were treated with close reduction and percutaneous minimally invasive fixation. There were 21 males and 7 females, ranging in age from 22 to 78 years,with an average of 42.

[Case-control studies on debridement combined with external application of Mangxiao for the treatment of severe open injuries of limbs].

Objective: To investigate simple and convenient methods for the treatment of severe open injuries of limbs.

Methods: From 2005.1 to 2008.