Atrial fibrillation is strongly associated with an increased risk of embolism, stroke, and heart failure. Current therapeutic approaches often have limited efficacy, and controlling atrial fibrosis remains a critical objective for upstream therapies. The specific mechanisms driving atrial fibrosis remain incompletely understood.
View Article and Find Full Text PDFVertebral compression fractures (VCFs) are the most common type of osteoporotic fractures, yet they are often clinically silent and undiagnosed. Chest frontal radiographs (CFRs) are frequently used in clinical practice and a portion of VCFs can be detected through this technology. This study aimed to develop an automatic artificial intelligence (AI) tool using deep learning (DL) model for the opportunistic screening of VCFs from CFRs.
View Article and Find Full Text PDFThe activation of macrophages, essential for the innate defense against invading pathogens, revolves around Toll-like receptors (TLRs). Nevertheless, a comprehensive understanding of the molecular mechanisms governing TLR signaling in the course of macrophage activation remains to be fully clarified. Although Zc3h12c was originally identified as being enriched in organs associated with macrophages, its precise function remains elusive.
View Article and Find Full Text PDFAs a single-stranded RNA virus, vesicular stomatitis virus (VSV) causes influenza-like clinical symptoms in infected individuals. Type-I interferon signaling pathway plays a vital role in inhibiting VSV replication. It has been shown that RNF114 (RING finger protein 114) acts as an E3 ubiquitin ligase to regulate the type-I interferon signaling pathway.
View Article and Find Full Text PDFBackground: Although lumbar bone marrow fat fraction (BMFF) has been demonstrated to be predictive of osteoporosis, its utility is limited by the requirement of manual segmentation. Additionally, quantitative features beyond simple BMFF average remain to be explored. In this study, we developed a fully automated radiomic pipeline using deep learning-based segmentation to detect osteoporosis and abnormal bone density (ABD) using a <20 s modified Dixon (mDixon) sequence.
View Article and Find Full Text PDFPurpose: It is unclear whether vitamin D provides any benefit against the pro-inflammatory effects of homocysteine in elderly patients with type 2 diabetes mellitus (T2DM).
Methods: We compared lymphocyte counts for CD3, CD19, CD4, and CD8 subsets between elderly (age ≥65 years) T2DM patients (n = 5098) and nondiabetes control subjects (n = 20,590) based on the serum concentrations of homocysteine and total vitamin D (calcidiol + calcifediol [total vitamin D, TVD]; <20, 20-30, and >30 ng/mL).
Findings: Significant variation in CD19 (P = 0.
Viral myocarditis (VMC) is a cardiac disease associated with myocardial inflammation and injury induced by virus infection. Cardiomyocytes have recently been regarded as key players in eliciting and modulating inflammation within the myocardium. Kruppel-like factor 10 (KLF10) is a crucial regulator of various pathological processes and plays different roles in a variety of diseases.
View Article and Find Full Text PDFViral myocarditis (VMC) is a type of inflammation affecting myocardial cells caused by viral infection and has been an important cause of dilated cardiomyopathy (DCM) worldwide. Type B3 coxsackievirus (CVB3), a non-enveloped positive-strand RNA virus of the Enterovirus genus, is one of most common agent of viral myocarditis. Till now, effective treatments for VMC are lacking due to lack of drugs or vaccine.
View Article and Find Full Text PDFMonocyte chemotactic protein-induced protein 1 (MCPIP1) is an inflammatory regulator in immune response. Recently, MCPIP1 has also been identified as a host antiviral factor against certain virus infection including human immunodeficiency virus, dengue virus and hepatitis C virus. However, whether MCPIP1 could restrict the replication of hepatitis B virus (HBV), a DNA pararetrovirus belonging to Hepadnaviridae family, has not been investigated.
View Article and Find Full Text PDFUnlabelled: A total of 88 subjects were enrolled to investigate the relationship between paraspinal muscle fatty infiltration and lumbar bone mineral density (BMD) using chemical shift encoding-based water-fat MRI and quantitative computed tomography (QCT), respectively. A moderate inverse correlation between paraspinal muscle proton density fat fraction and lumbar QCT-BMD was found with age, sex, and BMI controlled.
Purpose: To investigate the relationship between paraspinal muscle fatty infiltration and lumbar bone mineral density (BMD).
Background: Bone marrow fat increases when bone mass decreases, which could be attributed to the fact that adipogenesis competes with osteogenesis. Bone marrow fat has the potential to predict abnormal bone density and osteoporosis.
Purpose: To investigate the predictive value of using vertebral bone marrow fat fraction(BMFF) obtained from modified Dixon(mDixon) Quant in the determination of abnormal bone density and osteoporosis.
Objective: To investigate changes over time in the shape and signal intensity of high intensity zone (HIZ) in the lumbar intervertebral discs on magnetic resonance images in patients with low back pain.
Methods: The imaging data were collected from 27 patients with low back pain, who underwent lumbar magnetic resonance (MR) imaging examinations that identified HIZ lesions and received follow-up MR examinations at least 1.5 years later over the period from January 2009 to January 2017.
Nan Fang Yi Ke Da Xue Xue Bao
September 2017
Objective: To assess the quality of whole spine images obtained by DR and magnetic resonance imaging (MRI) and analyze the whole spinal imaging sagittal parameters for standing DR and supine MRI.
Methods: Sixty-one patients aged 49.9∓17.
Nan Fang Yi Ke Da Xue Xue Bao
February 2016
Objective: To investigate the correlation between the lumbar bone marrow fat and abdominal fat.
Methods: A total of 68 individuals (32 men and 36 women, aged 21-74 years with a median of 49.5 years) were included in this study.
Objective: To further reveal the chemical constituents of Polypodium hastatum, volatile components from this plant were investigated.
Methods: The volatile components were extracted under reflux from the whole plant of Polypodium hastatum, and then analyzed qualitatively and quantitatively by GC-MS.
Results: 60 volatile components were detected and of all components detected, the structures and relative contents of 34 volatile compounds were elucidated.
Zhonghua Yi Xue Za Zhi
September 2015
Objective: To investigate the correlation between the lumbar vertebra bone mineral density (BMD) and age, gender, height, weight, body mass index, waistline, hipline, bone marrow and abdomen fat, and to explore the key factor affecting the BMD.
Methods: A total of 72 cases were randomly recruited. All the subjects underwent a spectroscopic examination of the third lumber vertebra with single-voxel method in 1.
Nan Fang Yi Ke Da Xue Xue Bao
August 2015
Objective: To assess the correlation between vertebral body deformity and degeneration of the adjacent intervertebral discs in patients with old thoracolumbar compression fractures.
Methods: Seventy-one patients who had been conservatively treated after single segment thoracolumbar compression fractures between April, 2011 and May, 2014 were enrolled in this study. Both radiographic and magnetic resonance (MR) images of the thoracolumbar segment were obtained.
Many recent studies have suggested that bergapten (BP), a class of native compound with numerous biological activities such as anti-resorptive properties, may exert protective effects against postmenopausal bone loss. However, it remains unknown whether BP regulates or improves the osteogenic function of bone marrow stromal cells (BMSCs) in the treatment and prevention of osteoporosis. In our study, BMSCs were cultured in osteogenic induction medium with the addition of BP for 2 weeks and an ovariectomized mouse model of osteoporosis was used to investigate the anti-resorptive effect of BP by gavage administration for 3 months.
View Article and Find Full Text PDFNan Fang Yi Ke Da Xue Xue Bao
June 2015
Objective: To compare the image quality of isotropic 3-dimensional fast spin echo (3D-FSE), 3D fast field echo (3D-FFE), and 2D fast spin echo (2D-FSE) sequences in magnetic resonance imaging (MRI) of the anatomical structure of the ankle joint.
Methods: The ankle joints of 10 healthy volunteers were examined with isotropic 3D-FSE, 3D-FFE and 2D-FSE sequences using a 1.5T MR scanner and 3D reconstruction.
Nan Fang Yi Ke Da Xue Xue Bao
February 2014
Objective: To evaluate the diagnostic value of pelvis bone marrow fat depositions (BMFD) displayed by magnetic resonance imaging (MRI) in patients with ankylosing spondylitis (AS).
Methods: Eighty-eight subjects undergoing pelvic MRI examinations were enrolled in this study, including 44 with clinically confirmed AS (39 male and 5 female patients with a mean age of 26.41∓8.
Objective: To observe the expression of Toll-like receptor 8 (TLR8) in human cervical cancer cell-line HeLa cells, and the effects of TLR8 agonist CL075 on the survival and proliferation of HeLa cells.
Methods: PCR and RT-PCR were used to detect the expression of TLR8 in 13 cancer cell lines, and the expression of COX-2, Bcl-2, VEGF mRNA in the HeLa cells stimulated by TLR8 agonist CL075 were also measured by RT-PCR. Immunofluorescence technique was used to determine the exact location of TLR8 in the cells.
Rheumatoid arthritis (RA) is an autoimmune inflammatory disease. It is a systemic inflammatory disease, characterized by chronic, symmetrical, multi-articular synovial arthritis. IL-25 (IL-17E) is a member of the recently emerged cytokine family (IL-17s), which is expressed in Th2 cells and bone marrow-derived mast cells.
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