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  • SAGE Publications  (5)
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  • SAGE Publications  (5)
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  • 1
    Online Resource
    Online Resource
    SAGE Publications ; 2021
    In:  Technology in Cancer Research & Treatment Vol. 20 ( 2021-01-01), p. 153303382110342-
    In: Technology in Cancer Research & Treatment, SAGE Publications, Vol. 20 ( 2021-01-01), p. 153303382110342-
    Abstract: Osteosarcoma (OS) is a malignant tumor prevalent in adolescents; however, a clinically effective treatment for this malignancy is lacking. The lack of effective treatment methods and factors, such as recurrence and drug resistance, further dampen the prospect of clinically treating OS. In recent years, small molecule microRNAs (miRNAs) with a length of approximately 20-24 nucleotides have gradually attracted the attention of the medical community. Studies have found that miRNAs can regulate the cell cycle, apoptosis, cell proliferation, and cell proliferation. The metabolic response of cancer cells, invasion and metastasis of cancer cells, and angiogenesis play an important role in the process of tumorigenesis. miRNAs regulate gene expression by regulating mRNA expression after transcription. A large amount of data from many studies indicate that they have diagnostic and prognostic biomarker effects in OS and are involved in regulating the metabolism of cancer cells and resistance or sensitivity to chemotherapy drugs. Chemotherapy resistance is one of the most critical problems in clinically treating OS. A large number of basic studies and systematic summaries are required to provide a theoretical basis for elucidating the mechanism and drug development of chemotherapeutic agents. Therefore, this article discusses the role of miRNAs in OS resistance. Herein, the related research progress of the studies is reviewed to provide more useful information for the development of effective therapy.
    Type of Medium: Online Resource
    ISSN: 1533-0346 , 1533-0338
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2021
    detail.hit.zdb_id: 2146365-7
    detail.hit.zdb_id: 2220436-2
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  • 2
    In: Therapeutic Advances in Respiratory Disease, SAGE Publications, Vol. 16 ( 2022-01), p. 175346662210754-
    Abstract: The Chinese government has promoted the ‘tiered medical services’ policy in which diseases are classified by severity, mode of onset and difficulty of treatment since 2015 to optimize medical resources. We evaluated the diagnosis and treatment of acute exacerbation (AE) of chronic obstructive pulmonary disease (AECOPD) under the tiered system. Methods: We conducted a cross-sectional study. COPD characteristics and treatments were compared among hospitals in different tiers. Associations were examined by univariate and multivariable logistic regression analysis. In addition, multivariate logistic regression was performed to identify the possible influencing factors of antibiotics, glucocorticoids and anticoagulant usages. Results: Eligible COPD patients ( n = 432) were consecutively recruited from eight hospitals in different tiers in China. Patients in the countryside preferred the community hospitals, whereas patients in cities preferred second-tier and teaching hospitals when they suffer from AECOPD. It indicates most COPD patients are likely to treat their disease locally. The severity of COPD AE increased with tiers of hospitals ( p  〈  0.001). However, our results clearly show that most community hospitals can only deal with mild exacerbation of COPD. Approximately 90% of AE patients received antibiotics. We speculated that antibiotics abuse might exist in the three tiers of hospitals. Multivariate analysis demonstrated that long-term antibiotics usage (⩾14 days) was associated with moderate exacerbation [odds ratio (OR): 5.295, 95% confidence intervals (CI) 2.248–12.473, p  〈  0.001], radiographic progression (OR: 2.176, 95% CI: 1.047–4.522, p = 0.037), positive sputum etiology (OR: 3.073, 95% CI: 1.477–6.394, p = 0.003) and increased wh ite blood cells (OR: 2.470, 95% CI: 1.190–5.126, p = 0.015). The proportion of glucocorticoids increased with the hospital hierarchy (18.6% versus 45.6% versus 69.2%, p  〈  0.001). The proportions of severe cases in the second-tier hospitals were 26.9%; however, non-invasive positive pressure ventilation (NPPV) rate was only 14.7%. Anticoagulant is not commonly used in AECOPD, and the community hospitals had the lowest proportion of anticoagulation regimen (1.7% versus 14.3% versus 20.5%, p = 0.002). Conclusions: The ‘tiered medical services’ policy in AECOPD management has been unsatisfactory in the past years. Irrational treatment strategies in different hospitals were still found when comparing with international guideline. Further reform of the policy is still needed to optimize the management of AECOPD in China.
    Type of Medium: Online Resource
    ISSN: 1753-4666 , 1753-4666
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2022
    detail.hit.zdb_id: 2387506-9
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  • 3
    Online Resource
    Online Resource
    SAGE Publications ; 2014
    In:  The International Journal of High Performance Computing Applications Vol. 28, No. 3 ( 2014-08), p. 255-266
    In: The International Journal of High Performance Computing Applications, SAGE Publications, Vol. 28, No. 3 ( 2014-08), p. 255-266
    Abstract: Data-intensive applications have drawn more and more attention in the last few years. The basic graph traversal algorithm, the breadth-first search (BFS), a typical data-intensive application, is widely used and the Graph 500 benchmark uses it to rank the performance of supercomputers. The Intel Many Integrated Core (MIC) architecture, which is designed for highly parallel computing, has not been fully evaluated for graph traversal. In this paper, we discuss how to use the MIC to accelerate the BFS. We present some optimizations for native BFS algorithms and develop a heterogeneous BFS algorithm. For the native BFS algorithm, we mainly discuss how to exploit many cores and wide-vector processing units. The performance of our optimized native BFS implementation is 5.3 times that of the highest published performance for graphics processing units (GPU). For the heterogeneous BFS algorithm, the performance of the general processing unit (CPU) and MIC cooperative computing can gain an increase in speed of approximately 1.4 times than that of a CPU for graphs with 2M vertices. This work is valuable for using a MIC to accelerate the BFS. It is also a general guidance for a MIC used for data-intensive applications.
    Type of Medium: Online Resource
    ISSN: 1094-3420 , 1741-2846
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2014
    detail.hit.zdb_id: 2017480-9
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  • 4
    Online Resource
    Online Resource
    SAGE Publications ; 2016
    In:  The International Journal of High Performance Computing Applications Vol. 30, No. 1 ( 2016-02), p. 39-54
    In: The International Journal of High Performance Computing Applications, SAGE Publications, Vol. 30, No. 1 ( 2016-02), p. 39-54
    Abstract: In this article, we present a new hybrid algorithm to enable and scale the high-performance conjugate gradients (HPCG) benchmark on large-scale heterogeneous systems such as the Tianhe-2. Based on an inner–outer subdomain partitioning strategy, the data distribution between host and device can be balanced adaptively. The overhead of data movement from both the MPI communication and the PCI-E transfer can be significantly reduced by carefully rearranging and fusing operations. A variety of parallelization and optimization techniques for performance-critical kernels are exploited and analyzed to maximize the performance gain on both host and device. We carry out experiments on both a small heterogeneous computer and the world’s largest one, the Tianhe-2. On the small system, a thorough comparison and analysis has been presented to select from different optimization choices. On Tianhe-2, the optimized implementation scales to the full-system level of 3.12 million heterogeneous cores, with an aggregated performance of 623 Tflop/s and a parallel efficiency of 81.2%.
    Type of Medium: Online Resource
    ISSN: 1094-3420 , 1741-2846
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2016
    detail.hit.zdb_id: 2017480-9
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  • 5
    In: Lupus, SAGE Publications, Vol. 29, No. 6 ( 2020-05), p. 617-624
    Abstract: New criteria published by the European League Against Rheumatism (EULAR) and the American College of Rheumatology (ACR) use a point system that gives varying weight to each of 22 criteria. The aim of this study was to compare the performance of the 2019 EULAR/ACR criteria and the 2012 Systemic Lupus International Collaborating Clinics (SLICC) criteria with the 1997 ACR criteria in a Chinese cohort. Methods A cross-sectional observation study of patients with a clinical diagnosis of SLE was performed. We collected 199 new-onset SLE patients and 175 control subjects. The data were retrospectively collected to establish the patients who fulfilled the 1997 ACR, 2012 SLICC and 2019 EULAR/ACR criteria. The sensitivity and specificity of the three classification criteria were compared using McNemar’s test. Results The sensitivity and specificity of the 2019 EULAR/ACR criteria were 96.5% and 90.3%, respectively. For the 2012 SLICC criteria, the sensitivity and specificity were 92.0% and 84.0%, respectively, while for the 1997 ACR criteria, these two values were 75.4% and 96.0%. Leucopaenia (62%), arthritis (54%) and autoimmune haemolysis (45%) were the most frequently observed clinical manifestations in the group that fulfilled the 2019 EULAR/ACR criteria. Fever was reported by 39% of participants. Conclusion Compared with the 1997 ACR and 2012 SLICC criteria, the 2019 EULAR/ACR criteria performed best in terms of sensitivity but less well in terms of specificity in Chinese new-onset lupus patients.
    Type of Medium: Online Resource
    ISSN: 0961-2033 , 1477-0962
    RVK:
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2020
    detail.hit.zdb_id: 2008035-9
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