Publications by authors named "Yakui Zhang"

Objectives: Hip fractures in elderly patients are associated with a high mortality rate. Most deaths associated with hip fracture result from complications after surgery. Recent studies suggest that some inflammation biomarkers may be useful to estimate excess mortality.

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Article Synopsis
  • The study aims to analyze the positioning of femur fixed screws in intertrochanteric fractures and enhance the measurement accuracy of the tip-to-apex distance (TAD).
  • It establishes a methodology for defining axes in AP and lateral hip radiographs to assess the screw alignment more effectively.
  • Results indicate that non-standardized lateral projection angles can lead to inaccuracies in TAD measurements, suggesting the need for standardized practices to avoid clinical misinterpretations.
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Background: Femoral neck fracture is an unsolved challenge in orthopedics. The complication rate in particular is high. There remains a lack of consensus on the optimal choice of internal fixation for unstable femoral neck fracture.

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Diabetes is considered an independent risk factor for hip fracture. In the present study, we evaluated whether perioperative glucose variability (GV) was a significant predictor of the outcomes of patients with diabetes after hip fracture.We analyzed the characteristics and outcomes of all patients with hip fractures admitted to our hospital between September 2008 and December 2012.

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Background: Femoral neck shortening can occur in young patients receiving internal fixation for Pauwels type II femoral neck fracture. The risk factors for neck shortening, which can affect hip function, are not clear. This study aimed to retrospectively identify risk factors for neck shortening after internal fixation with parallel partially threaded cannulated cancellous screws (FPTCS) for Pauwels type II femoral neck fracture in relatively young patients.

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Objective: To retrospectively analyze the clinical outcomes of two intramedullary fixation devices, the INTERTAN nail and Gamma3 nail, for treatment of AO/OTA 31-A2 trochanteric fractures in elderly patients.

Methods: In total, 165 elderly patients underwent treatment for AO/OTA 31-A2 trochanteric fractures in our hospital from June 2017 to June 2018 (INTERTAN group, n = 79; Gamma3 group, n = 86). All patients underwent radiological and clinical investigations and were followed up for an average of 12 months.

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Objective: To investigate the outcomes of humeral head replacement in the treatment of patients with comminuted proximal humeral fracture.

Methods: Between February 2013 and September 2016, 56 patients underwent humeral head replacement in our hospital. Of them, 18 cases were diagnosed as comminuted proximal humeral fracture before the operation.

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Unlabelled: Oxidative stress (OS) is implicated in postmenopausal osteoporosis (PO). Results show an imbalance between antioxidative and oxidative markers in PO. Thus, monitoring of OS-related biomarkers and keeping balance between reactive oxygen species and antioxidant system are beneficial to the diagnosis and prognosis of PO.

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Objective: To evaluate the effect of hip arthroscopy with or without capsular closure in femoracetabular impingement (FAI) by meta-analysis.

Methods: Pertinent studies were identified by searching Pubmed, EMBASE databases with the last search update on 16 February 2020. Studies that reported hip arthroscopy for FAI were collected.

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Objective: To investigate the effect of cervus and cucumis polypeptide combined with zoledronic acid on bone metabolic biochemical markers in glucocorticoids - induced osteoporosis patients.

Methods: A total of 100 patients with glucocorticoids - induced osteoporosis admitted to our hospital from January 2015 to June 2017 were enrolled in this study. Patients were divided into observation group and control group by random number table method, 50 cases in each group.

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Background: To analyze the cost-effective ratio of total knee arthroplasty (TKA) in the osteoarthritis (OA) treatment of at a regional medical center in China.

Methods: One hundred thirty-nine patients with osteoarthritis who underwent TKA at the Department of Osteoarthritis in Luhe hospital (Tongzhou, Beijing) from January 2011 to January 2012 were followed up. Their health-related quality of life (HRQoL) was evaluated using Short-Form Health Survey (SF) -36 Chinese version, and compared with those of the normal population to assess quality-adjusted life years (QALYs) gained after surgery for its effectiveness of the treatment.

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Objective: To investigate risk factors for perioperative death in elderly patients with intertrochanteric fracture.

Methods: Clinical data from 1051 cases with intertrochanteric fracture from March 2005 to March 2015 were reviewed and analyzed, and causes of death during the perioperative period were statistically analyzed. Various indicators were compared by t test and χ test.

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Introduction: Osteosarcoma is a malignant primary bone cancer and is lethal to children and adolescents. Recently, the dysregulation of long noncoding RNAs (lncRNAs) has been shown in various types of cancers.

Aim: The present study aimed to examine the role of the lncRNA prostate cancer-associated transcript 1 (PCAT1) in osteosarcoma progression.

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(5R)-5-hydroxytriptolide (LLDT-8) extracts from have anti-inflammatory, antineoplastic and immunity adjustment functions. The present study used a collagen-induced arthritis (CIA) model to evaluate whether LLDT-8 prevents collagen-induced arthritis, and investigated the signaling underlying this. Male Sprague-Dawley rats were induced to generate CIA, mimicking rheumatoid arthritis (RA).

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Osteoarthritis (OA) is a degenerative joint disease characterized by progressive cartilage destruction, matrix degradation and bony changes. Subchondral bone alterations in osteoarthritis are associated with cartilage destruction. It has previously been demonstrated that osteoprotegerin (OPG) and receptor activator of nuclear factor κβ ligand (RANKL) mediate this process.

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Article Synopsis
  • The study investigates the impact of different screw hole configurations in locking plate fixation for proximal humeral fractures, focusing on how these designs affect stress distribution in bones.
  • Using finite element method simulations, three plate models were analyzed under increasing loads to measure peak von Mises stresses, construct stiffness, and displacement in fracture gaps.
  • Results indicate that combi hole designs experience the highest stress and greatest displacement, while locking hole only configurations offer the best rigidity and lowest stress, potentially explaining the observed breakages in combi plates.
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MicroRNA-195 (miR-195) is a tumor suppressor that plays an important role in tumorigenesis. There are few studies on miR-195 expression in breast cancer patients and the results have been inconsistent; therefore, this study examined miR-195 expression in the serum of BC patients. Samples from 102 normal subjects and 210 subjects with BC who had detailed clinical follow-up information available were selected.

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Using emulsion copolymer of styrene (St), glycidyl methacrylate (GMA) and 2-hydroxyethyl methacrylate (HEMA) as seed latexes, the superparamagnetic polymer emulsion particles were prepared by seeded emulsion copolymerization of butyl methacrylate (BMA), vinyl acetate (VAc) and ethylene glycol dimethacrylate in the presence of the seed latexes and superparamagnetic Fe3O4/SiOx nanoparticles (or Fe3O4-APTS nanoparticles) through a two-step process, without addition of any emulsifier. The magnetic emulsion particles named P(St-GMA-HEMA)/P(BMA-VAc) were characterized by transmission electron microscope and vibrating sample magnetometry. The results showed that the magnetic emulsion particles held a structure with a thinner shell (around 100 nm) and a bigger cavity (around 200 nm), and possessed a certain level of magnetic response.

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Intertrochanteric fractures occur most commonly in elderly patients. Osteoblasts and osteoclasts have been reported to be regulated by the receptor activator of NF-κB ligand (RANKL) and osteoprotegerin (OPG), during bone modeling and remodeling, respectively. Based on these observations, we hypothesized that the serum levels of RANKL, OPG and the RANKL/OPG ratio are important in the healing of intertrochanteric fractures in elderly patients.

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Article Synopsis
  • - The study investigates the protective effects of Astragalus polysaccharides (APS) on mitochondria and its potential anti-aging activities, particularly how it counters lipid peroxidation in liver and brain mitochondria caused by Fe(2+)-Vit C.
  • - Methods like TBA colorimetry and spectrophotometry were used to measure oxidative damage and mitochondrial permeability, while APS demonstrated significant scavenging of harmful free radicals such as superoxide anion and hydroxyl radicals in a concentration-dependent manner.
  • - In vivo experiments using mice showed that APS could enhance the activity of key antioxidant enzymes (catalase, superoxide dismutase, and glutathione peroxidase) and inhibit damaging processes, indicating its potential
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Objective: To explore the flexibility and reliability of cementless total knee arthroplasty (TKA) without patella replacement through a retrospective study of the mid-term therapeutic effect of the treatment of the patients.

Methods: From June 1997 to March 2000, a consecutive series of 152 (152 knees) cementless TKA performed in Hessing-Stiftung was studied. Among them, there were 63 males and 89 females, with 70 left knees and 82 right knees.

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