Publications by authors named "Q-H Guo"

Rationale And Objectives: To develop interpretable machine learning models that utilize deep learning (DL) and radiomics based on multiparametric Magnetic resonance imaging (MRI) to predict preoperative lymph node (LN) metastasis in rectal cancer.

Materials And Methods: This retrospective study involved 286 cancer patients confirmed by histopathology from center 1 (Training set) and 66 patients from center 2 (External test set). Radiomics features were extracted from T2-weighted imaging (T2WI) and diffusion-weighted imaging (DWI) sequences, whereas DL features were obtained using four models: MobileNet-V3-large, Inception-V3, ResNet50, and VGG16.

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Background Synaptic loss is an important factor in Alzheimer disease (AD); however, blood assays that conveniently and rapidly reflect changes in synaptic density are lacking. Purpose To correlate multiple potential synaptic blood markers with synaptic density measured using F-SynVesT-1, a fluorine 18 (F)-labeled radiotracer, brain PET and to explore the independent associations between these markers and synaptic density. Materials and Methods This prospective study included 50 cognitively unimpaired (mean age, 65.

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Purpose: This study aimed to assess the drug risk of drug-related keratitis and track the epidemiological characteristics of drug-related keratitis.

Methods: This study analyzed data from the U.S.

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Background: Hyperproliferation of pulmonary arterial smooth muscle cells (PASMCs) and consequent pulmonary vascular remodeling are the crucial pathological features of pulmonary hypertension (PH). Protein methylation has been shown to be critically involved in PASMC proliferation and PH, but the underlying mechanism remains largely unknown.

Methods: PH animal models were generated by treating mice/rats with chronic hypoxia for 4 weeks.

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Article Synopsis
  • Asian soybean rust (ASR), caused by the fungus Phakopsora pachyrhizi, severely impacts soybean crops, with a lack of resistant varieties hindering effective management.
  • Researchers isolated two genes, Rpp6907-7 and Rpp6907-4, from a resistant Chinese soybean landrace, which together provide broad-spectrum resistance to ASR.
  • The study reveals that Rpp6907-7 is the primary gene conferring resistance, while Rpp6907-4 regulates its activity, indicating their potential in breeding improved soybean varieties.
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Background: Pancreatic ductal adenocarcinoma (PDAC) cancer cells specifically produce abnormal oncogenic collagen to bind with integrin α3β1 receptor and activate the downstream focal adhesion kinase (FAK), protein kinase B (AKT), and mitogen-activated protein kinase (MAPK) signaling pathway. Collectively, this promotes immunosuppression and tumor proliferation and restricts the response rate of clinical cancer immunotherapies.

Methods: Here, by leveraging the hypoxia tropism and excellent motility of the probiotic Escherichia coli strain Nissle 1917 (ECN), we developed nanodrug-bacteria conjugates to penetrate the extracellular matrix (ECM) and shuttle the surface-conjugated protein cages composed of collagenases and anti-programmed death-ligand 1 (PD-L1) antibodies to PDAC tumor parenchyma.

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This study was conducted to investigate effects of dietary and supplementation on the intestinal stem cell proliferation, immunity, and ileal microbiota of broiler chickens challenged by coccidia and . A total of 336 one-day-old Ross 308 chickens were randomly assigned into four groups. Chickens in the control (CTR) group were fed basal diet, and chickens in the three challenged groups were fed basal diets supplemented with nothing (CCP group), 1.

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Article Synopsis
  • The study highlights the complexity of carotid atherosclerosis, linking immune system dysfunction and cellular interactions to ischemic strokes.
  • Through single-cell RNA sequencing of patient samples, researchers identified unique T-cell and monocyte subsets within atherosclerotic plaques that contribute to their pro-inflammatory nature and exacerbate cerebrovascular events.
  • The findings offer new understanding of how specific immune cells, including altered regulatory T cells and distinct monocyte populations, influence plaque stability and stroke risk.
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Background: Cell-free DNA (cfDNA) is being explored as biomarker for non-invasive diagnosis of cancer. We aimed to establish a cfDNA-based DNA methylation marker panel to differentially diagnose papillary thyroid carcinoma (PTC) from benign thyroid nodule (BTN).

Methods: 220 PTC- and 188 BTN patients were enrolled.

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Background: Metabolic reprogramming is a hallmark of pulmonary arterial hypertension. Platelet activation has been implicated in pulmonary arterial hypertension (PAH), whereas the role of platelet in the pathogenesis of PAH remains unclear.

Methods: First, we explored the platelet function of semaxanib' a inhibitor of VEGF receptor (SU5416)/hypoxia mice and monocrotaline-injected rats PAH model.

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Background: The mechanism of chronic thromboembolic pulmonary hypertension (CTEPH) is known to be multifactorial but remains incompletely understood.

Methods: In this study, single-cell RNA sequencing, which facilitates the identification of molecular profiles of samples on an individual cell level, was applied to investigate individual cell types in pulmonary endarterectomized tissues from 5 patients with CTEPH. The order of single-cell types was then traced along the developmental trajectory of CTEPH by trajectory inference analysis, and intercellular communication was characterized by analysis of ligand-receptor pairs between cell types.

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Excretion of [C]HR011303-derived radioactivity showed significant species difference. Urine (81.50% of dose) was the main excretion route in healthy male subjects, whereas feces (87.

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Background: Masked hypertension is associated with adverse cardiovascular outcomes. Nonetheless, no randomized controlled trials exist in the treatment of masked hypertension. The aim of this randomized, placebo-controlled trial was to investigate the efficacy and safety of blood pressure (BP)-lowering treatment with a Chinese herbal formula, gastrodia-uncaria granules, in patients with masked hypertension.

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Antibiotics and pharmacological zinc supplementation were commonly used as growth promoters for several decades in the swine industry before being limited because of public health and environmental concerns. Further, the physiological and metabolic responses associated with their growth promotion effects are unclear. To characterize these responses induced by pharmacological zinc supplementation (2500 mg/kg) and carbadox (55 mg/kg), 192 post-weaning pigs were fed basal and test diets for 43 days.

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Background: In acute ischemic stroke, there is uncertainty regarding the benefit and risk of administering intravenous alteplase before endovascular thrombectomy.

Methods: We conducted a trial at 41 academic tertiary care centers in China to evaluate endovascular thrombectomy with or without intravenous alteplase in patients with acute ischemic stroke. Patients with acute ischemic stroke from large-vessel occlusion in the anterior circulation were randomly assigned in a 1:1 ratio to undergo endovascular thrombectomy alone (thrombectomy-alone group) or endovascular thrombectomy preceded by intravenous alteplase, at a dose of 0.

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Nearly 500 basidiomycetous yeast species were accepted in the latest edition of published in 2011. However, this number presents only the tip of the iceberg of yeast species diversity in nature. Possibly more than 99 % of yeast species, as is true for many groups of fungi, are yet unknown and await discovery.

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Objective: By binding to its high-affinity receptor FcεR1, IgE activates mast cells, macrophages, and other inflammatory and vascular cells. Recent studies support an essential role of IgE in cardiometabolic diseases. Plasma IgE level is an independent predictor of human coronary heart disease.

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Background: Platinum-based concurrent chemoradiotherapy is the standard of care for patients with locoregionally advanced nasopharyngeal carcinoma. Additional gemcitabine and cisplatin induction chemotherapy has shown promising efficacy in phase 2 trials.

Methods: In a parallel-group, multicenter, randomized, controlled, phase 3 trial, we compared gemcitabine and cisplatin as induction chemotherapy plus concurrent chemoradiotherapy with concurrent chemoradiotherapy alone.

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Endometrial clear cell carcinoma (ECCC) and clear cell adenocarcinoma of the cervix (CCAC) are uncommon gynecologic cancers that have morphologic and phenotypic features similar to ovarian clear cell carcinoma (OCCC), but the 3 entities may not be completely identical. This study identified the morphologic and phenotypic characteristics and the differences between ECCC and CCAC in comparison to OCCC. The morphologic features of 16 ECCCs, 7 CCACs, and 22 OCCCs are described.

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Background And Purpose: Energy depletion is a critical factor leading to cell death and brain dysfunction after ischemic stroke. In this study, we investigated whether energy depletion is involved in hyperglycemia-induced hemorrhagic transformation after ischemic stroke and determined the pathway underlying the beneficial effects of hyperbaric oxygen (HBO).

Methods: After 2-hour middle cerebral artery occlusion, hyperglycemia was induced by injecting 50% dextrose (6 mL/kg) intraperitoneally at the onset of reperfusion.

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No previous study has addressed the relative contributions of environmental and genetic cues to the diurnal blood pressure rhythmicity. From 24-hour ambulatory recordings of systolic blood pressure obtained in untreated patients (51% women; mean age, 51 years), we computed the night-to-day ratio in 897 and morning surge in 637. Environmental cues included season, mean daily outdoor temperature, atmospheric pressure, humidity and weekday, and the genetic cues 14 single nucleotide polymorphisms in 10 clock genes.

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Article Synopsis
  • LXA4 has been shown to reduce neuroinflammation and improve neurological outcomes in a rat model of subarachnoid hemorrhage (SAH).
  • Exogenous LXA4 treatment lowered brain water content, decreased blood-brain barrier permeability, and enhanced memory and learning abilities after SAH, while also reducing inflammatory markers and neutrophil infiltration.
  • The positive effects of LXA4 were linked to its interaction with the FPR2 receptor, suggesting that targeting this pathway could offer new therapeutic strategies for managing early brain injury following SAH.
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The article "Olanzapine inhibits the proliferation and induces the differentiation of glioma stem-like cells through modulating the Wnt signaling pathway in vitro" by Q.-H. Guo, H.

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