Publications by authors named "Yong-Gang Ma"

Objectives: To develop a deep learning model for automated age estimation based on 3D CT reconstructed images of Han population in western China, and evaluate its feasibility and reliability.

Methods: The retrospective pelvic CT imaging data of 1 200 samples (600 males and 600 females) aged 20.0 to 80.

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Article Synopsis
  • The study aimed to assess the accuracy and reliability of deep learning technology, specifically using 3D CT images, for automatic sex estimation in the Chinese Han population.
  • Researchers collected pelvic CT images from 700 individuals (350 males and 350 females), utilizing the Inception v4 model and both initial and transfer learning methods for training.
  • Results showed high overall accuracy rates, with the best performance reaching 95.7% when using transfer learning, indicating that this deep learning model can effectively estimate sex from 3D pelvic images.
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Objectives: To examine the reliability and accuracy of Walker's model for estimating the sex of Han adults in western China by using cranium three-dimensional (3D) CT reconstruction, and to study the suitable cranial sex estimation model for Han people in western China.

Methods: A total of 576 cranial CT 3D reconstructed images from Hanzhong Hospital in Shaanxi Province from 2017 to 2021 were collected. These images were divided into the experimental group with 486 samples and the validation group with 90 samples.

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Osteoarthritis (OA) is the most prevalent chronic degenerative disease that affects the health of the elderly. The present study aimed to identify significant genes involved in OA via bioinformatics analysis. A gene expression dataset (GSE104793) was downloaded from the Gene Expression Omnibus.

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Delayed anastomotic occlusion occurred in a considerable proportion of hemorrhagic moyamoya disease (MMD) patients undergoing direct revascularization. This study aimed to investigate the predictors and outcomes of delayed anastomotic occlusion in adult hemorrhagic MMD. The authors retrospectively reviewed 87 adult hemorrhagic MMD patients.

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Introduction:  Intradiskal injection of methylene blue has some potential in alleviating discogenic back pain. This meta-analysis aims to explore the impact of intradiskal injection of methylene blue for discogenic back pain.

Methods:  Several databases such as PubMed, EMbase, Web of Science, EBSCO, and Cochrane Library databases have been searched through November 2019, and randomized controlled trials (RCTs) assessing the effect of intradiskal injection of methylene blue for discogenic back pain are included.

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Climatic factors are considered the major driving forces for variation of flowering phenology among species. Yet, whether flowering phenology of woody species varies with functional traits, growth form, and phylogeny in arid regions is unknown. In the present study, we evaluated the relationships of three characteristics of flowering phenology (i.

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A luminescent coordination polymer based on Tb(III) has been synthesized with the tripodal carboxylic acid ligand containing N,O codonors (HPBA = 5-[4-pyridin-3-yl-benzoylamino]-isophthalic acid) as ligand under solvothermal conditions. The chemical formula of this polymer is {[Tb(PBA)(HO)]·DMF·3HO} (1). Complex 1 has good sensitivity and selectivity to picric acid (PA).

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Purpose: To investigate the effect of baicalin on osteogenic differentiation of stem cells from human apical papilla(SCAPs).

Methods: The third-passage SCAPs with stable passage ability were selected. After culturing for 24 hours in a medium containing 0, 10, 20, 50, 100 μmol/L of baicalin, cell viability in each group was measured by live/dead fluorescence staining.

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Human bone marrow‑derived mesenchymal stromal cells (hBMSCs) have been revealed to be beneficial for the regeneration of tissues and cells in several diseases. The present study aimed to elucidate the mechanisms underlying the effect of hBMSC transplantation on neuron regeneration in a rat model of middle cerebral artery occlusion (MCAO). The hBMSCs were isolated, cultured and identified.

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Background And Objective: Angiographic staging progression in the operated hemisphere of patient with moyamoya disease (MMD) is a common phenomenon that neurosurgeons may encounter. However, few studies have been carried out to demonstrate the correlation between the operation and angiographic staging progression. This study aimed to reveal whether cerebral revascularization would affect the stage progression in patient with MMD.

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A series of ( E)- N-aryl-4 H-thiochromen-4-imines has been conveniently obtained through a cascade reaction between o-bromobenzothioamides and terminal alkynes. This novel approach probably involved an initial generation of benzothietane-2-imine intermidates via an intramolecular Ullmann reaction under CuI/L-proline cocatalysis and alkaline conditions followed by imine alkynylation, ring opening, and cyclization sequences to provide the unexpected 4 H-thiochromen-4-imines rather than isothiochromans.

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A consecutive Sonogashira coupling reaction, acetylene hydroamination cyclization of 2-(2-bromophenyl)quinazolin-4(3H)-ones and terminal alkynes, is described catalyzed by CuI/l-proline in the presence of CsCO. This procedure provided a facile method for the synthesis of isoindolo[1,2-b]quinazolin-10(12H)-one derivatives in good yields.

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Objective: The aim of this study was to help people comprehensively understand the research advances related to ring finger protein 213 (RNF213) in moyamoya disease (MMD) and to understand the disease at the molecular level to provide a new perspective of the diagnosis of the disease.

Data Sources: This review was based on data in articles published between 2005 and 2015 that were retrieved from the PubMed database. The search terms included RNF213, MMD, intracranial major artery stenosis /occlusion (ICASO), genotype, phenotype, mutant and variants, and the combinations of these terms.

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Purpose: To explore the possible surgical factors related with nonunion in femoral shaft fracture following intramedullary nailing.

Methods: We retrospectively analyzed totally 425 patients with femoral shaft fracture in level I urban trauma center, including 254 males and 171 females, with an average age of 37.6 (ranging from 21 to 56) years old.

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The bovine immunodeficiency virus (BIV) transactivator (BTat) recruits the bovine cyclin T1 (B-cyclin T1) to the LTR to facilitate the transcription of BIV. Here, we demonstrate that bovine hexamethylene bisacetamide (HMBA)-induced protein 1 (BHEXIM1) inhibits BTat-mediated BIV LTR transcription. The results of in vivo and in vitro assays show direct binding of BHEXIM1 to the B-cyclin T1.

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This study aims to investigate the preventive role and potential mechanisms of blocking extracellular HMGB1 function on doxorubicin induced cardiac injury. Mice were treated with HMGB1 blocker glycyrrhizin 1 h before and one time every day (intraperitoneal, 10 mg per mouse) after doxorubicin injection, and sacrificed on the day 14 after doxorubicin challenge. Cardiac function was evaluated by echocardiography and hemodynamic measurement.

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Objective: To study the effect of surface treating methods on the shear strength of Panavia F luting cements to Cercon zirconia.

Methods: Forty sample disc of Cercon zirconia with 20 mm in diameter and 4 mm in height were prepared. Another 40 sample discs with 5 mm in diameter and 4 mm in height were also prepared Both of the two types of samples were randomly devided into four groups A, B, C, and D in which different surface treatments were delivered.

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Objective: To introduce the characteristics and its clinical effects of Hennipen external rotation procedure for reduction of acute anterior shoulder dislocation.

Methods: From March 2007 to March 2010, 72 patients with acute anterior shoulder dislocation were treated with manipulative reduction in our department. All the patients were divided into two groups: the Hippocratic group with 44 patients receiving regular Hippocratic procedure, and the Hennipen group with 28 patients receiving Hennipen external rotation procedure.

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Pulmonary fibrosis is the pathologic basis for a variety of incurable human chronic lung diseases. IL-17A, a glycoprotein secreted from IL-17-producing cells, has recently been shown to be a proinflammatory cytokine involved in chronic inflammation and autoimmune disease. In this study, we report that IL-17A increased the synthesis and secretion of collagen and promoted the epithelial-mesenchymal transition in alveolar epithelial cells in a TGF-β1-dependent manner.

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Aim: To explore the pathogenic role of Th17 cells and interleukin-17A (IL-17A)-associated signaling pathways in spontaneous pulmonary emphysema induced by a Toll-like receptor 4 mutant (TLR4(mut)).

Methods: Lungs were obtained from wild-type (WT) or TLR4mut mice that were treated with or without recombinant mouse IL-17A (1 μg·kg(-1)·d(-1), ip) from the age of 3 weeks to 3 months. Pulmonary emphysema was determined using histology, immunochemistry, and biochemical analysis.

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Objective: To investigate the influence of post-core background color on chromatic value of four all-ceramic system core materials at clinically appropriate thicknesses.

Methods: Disc specimens of 15 mm in diameter and 0.80 mm in thickness (Empress II: Group A), and 0.

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Aims: Innate and adaptive immune responses are associated with the development of hypertension-induced myocardial hypertrophy and fibrosis. As a result, we investigated whether heat shock protein (HSP) 70, which is a molecule of damage-associated molecular patterns, could induce inflammation in the myocardium and promote the development of hypertension-induced cardiac hypertrophy and fibrosis.

Methods And Results: We found that HSP70 serum levels, as well as the amount of HSP70 translocation to the cardiomyocyte membranes and the interstitial space, were elevated in the hypertensive mice caused by abdominal aortic constriction (AAC).

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In this article, canonical correlation analysis was used to explore the relationship between the toxicity-attenuating effect and the variation of chemical contents in rhubarb caused by processing. With quasi-acute toxicity test, the difference of hepatic and renal toxicity to mice with the processed materials of rhubarb was researched. The chemical contents of anthraquinones and tannins in rhubarb were measured by UV-vis spectrophotometry and high performance liquid chromatography.

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Objective: To set up the HPLC fingerprints of different samples of processed Rhizoma Coptidi (RC) in order to offer evidence for identifying different processed RC and preliminary discussion on processing mechanism.

Method: Seven different samples of processed RC were determined by HPLC and the results were analyzed by Hierarchical clustering and similarity evaluation system for chromatographic fingerprint of TCM.

Result: The characteristic of common peaks for fingerprints of different samples of processed RC is distinct, but there are differences among various processed RC.

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