Publications by authors named "Xiumao Li"

Background: Thoracic aortic endovascular repair (TEVAR) is the primary treatment for Stanford type B aortic dissection (type B AD). However, patients often encounter significant difficulties post-TEVAR that endanger their safety when transitioning from hospital- to home-based care. Moreover, information on the ideal transitional care for patients with type B AD post-TEVAR is scarce in China.

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  • The study is a retrospective cohort analysis comparing long-term outcomes of laminoplasty (LP) versus a combined procedure (CP) involving laminoplasty and anterior cervical discectomy in patients with multilevel degenerative cervical myelopathy and simultaneous anterior and posterior compression.
  • A total of 230 patients were studied, with the final analysis matching 84 pairs based on preoperative conditions; results showed that CP had longer surgery times and greater blood loss but better improvement in neurological scores (JOA scores and recovery rates).
  • The findings suggest that both surgical options lead to significant neurological recovery, but the combined procedure may offer superior benefits in improving patient outcomes when performed by experienced surgeons.
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Background: Mazabraud's syndrome (MS) is a rare and slowly progressive benign disease characterized by the concurrent presence of fibrous dysplasia of bone and intramuscular myxoma, and is thought to be associated with mutations of the gene. To date, only about 100 cases of MS have been reported in the literature, but its standard treatment strategy remains unclear.

Case Summary: We report two cases of MS in young women who underwent different treatments based on their symptoms and disease manifestations.

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  • * It includes 83 MDCM patients who underwent surgery between 2012 and 2014, using various clinical assessments (JOA and NDI) to evaluate outcomes, and employs propensity score matching to ensure comparable preoperative conditions between the groups.
  • * Results show that although both groups had similar preoperative scores and follow-up durations, the combined approach had a longer surgery time but better overall outcomes were not clearly defined in the text provided.
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(1) Background: Topical non-steroidal anti-inflammatory drugs (NSAIDs) are one of the primary drugs for treating musculoskeletal pain. However, there are currently no evidence-based recommendations about drug selection, drug administration, drug interactions, and use in special populations or other pharmacology-related content of such medications. To this end, the Chinese Pharmaceutical Association Hospital Pharmacy Professional Committee developed multidisciplinary guidelines on using topical NSAIDs to treat musculoskeletal pain.

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Objective: To investigate the effectiveness of three-dimensional (3D) printed total scapula for reverse shoulder arthroplasty in the treatment of scapular tumors.

Methods: Between November 2017 and December 2021, 5 patients with scapular tumors were treated by reverse shoulder arthroplasty with 3D printed total scapula. There was 1 male and 4 females.

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Background: Tumor resection and prosthetic replacement have become the treatments of choice for malignant bone tumors. Infections are the leading cause of failure of limb salvage surgeries. Therefore, treating infections around prostheses after limb salvage is essential and challenging.

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Dynamic microtubules play a critical role in cell structure and function. In nervous system, microtubules are the major route for cargo protein trafficking and they specially extend into and out of synapses to regulate synaptic development and plasticity. However, the detailed depolymerization mechanism that regulates dynamic microtubules in synapses and dendrites is still unclear.

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The poor progress of immunotherapy on osteosarcoma patients requires deeper delineation of immune tolerance mechanisms in the osteosarcoma microenvironment and a new therapeutic strategy. Clearance of apoptotic cells by phagocytes, a process termed "efferocytosis," is ubiquitous in tumors and mediates the suppression of innate immune inflammatory response. Considering the massive infiltrated macrophages in osteosarcoma, efferocytosis probably serves as a potential target, but is rarely studied in osteosarcoma.

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Tumor microenvironment (TME) formation is a major cause of immunosuppression. The TME consists of a considerable number of macrophages and stromal cells that have been identified in multiple tumor types. CCL2 is the strongest chemoattractant involved in macrophage recruitment and a powerful initiator of inflammation.

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Background: Spinal metastases are common in patients with malignancies, but studies on those metastasized from unknown primaries are scarce due to the difficulty in treatment and the relatively poor prognosis. Knowledge of surgical complications, particularly perioperative mortality, in patients with spinal metastases from unidentified sources is still insufficient.

Case Summary: A 54-year-old man with chest-back pain was diagnosed with spinal metastasis in the seventh thoracic vertebra (T7).

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We previously reported that Numb, a protein localized to clathrin-coated vesicles, regulates the membrane expression of metabotropic glutamate receptor 5 (mGluR5) and is critical to social behaviors. However, the distinct actions of Numb isoforms on mGluR5 have not been investigated. Here, we showed that the expression patterns of Numb-p72 and Numb-p65, two important isoforms of Numb, were distinct in HEK293T cells.

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Matrix metalloproteinase 2 (MMP2) is a well‑characterized protein that is indispensable for extracellular matrix remodeling and other pathological processes, such as tumor progression and skeletal dysplasia. Excessive activation of MMP2 promotes osteolytic metastasis and bone destruction in late‑stage cancers, while its loss‑of‑function mutations result in the decreased bone mineralization and generalized osteolysis occurring progressively in skeletal developmental disorders, particularly in multicentric osteolysis, nodulosis and arthropathy (MONA). Either upregulation or downregulation of MMP2 activity can result in the same osteolytic effects.

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Neuroligins (NLs) are a group of postsynaptic cell adhesion molecules that function in synaptogenesis and synaptic transmission. Genetic defects in neuroligin 3 (NL3), a member of the NL protein family, are associated with autism. Studies in rodents have revealed that mutations of NL3 gene lead to increased growth and complexity in dendrites in the central nervous system.

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The overproduction of proteolytic enzymes and dysregulation of extracellular matrix (ECM) metabolism have been shown to accelerate the degradation process of articular cartilage. The purpose of this study was to investigate the role of KIAA1199 and its association with the pathophysiology of osteoarthritis (OA). We found that the expression of KIAA1199 was significantly upregulated in OA cartilage compared with normal tissues.

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Objective: The optimal surgical treatment for multilevel cervical spondylotic myelopathy (MCSM) remains controversial. This study compared the outcomes of three surgical approaches for MSCM treatment, focusing on the efficacy and safety of a combined approach.

Methods: This retrospective study included 153 consecutive MCSM patients (100 men, 53 women; mean age ± standard deviation, 55.

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PICK1 (protein interacting with C-kinase 1) is a peripheral membrane protein with high expression in brain, testis, pancreas and other neuroendocrine tissues. Male Pick1 knockout mice are completely infertile, with a phenotype resembling the human disease globozoospermia. Since PICK1 is expressed in both testis and neuroendocrine tissues, infertility of Pick1 knockout mice may be due to either impaired neuroendocrine function or abnormal spermatogenesis.

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