Publications by authors named "Hongfu Li"

Importance: Tetramethylpyrazine nitrone has exhibited promising results in improving motor dysfunction in neurodegenerative diseases, including amyotrophic lateral sclerosis (ALS).

Objective: To evaluate the safety and efficacy of orally administered tetramethylpyrazine nitrone in patients with ALS.

Design, Setting, And Participants: This phase 2, multicenter, double-masked, placebo-controlled, randomized clinical trial was conducted from December 24, 2020, through July 14, 2023, in 11 centers in China, with a 180-day follow-up.

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The gyrotron operates in the harmonic state, which can significantly reduce the required operating magnetic field but complicates the mode competition problem. In some situations, it is also possible for the backward wave of the fundamental wave mode to be excited to suppress the desired harmonic operating mode. Therefore, a detailed analysis of mode competition is necessary for gyrotrons operating in the harmonic state.

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Hereditary spastic paraplegias (HSPs) refer to a genetically and clinically heterogeneous group of neurodegenerative disorders characterized by the degeneration of motor neurons. To date, a significant number of patients still have not received a definite genetic diagnosis. Therefore, identifying unreported causative genes continues to be of great importance.

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Disease-associated microglia (DAM) are observed in neurodegenerative diseases, demyelinating disorders, and aging. However, the spatiotemporal dynamics and evolutionary trajectory of DAM during the progression of amyotrophic lateral sclerosis (ALS) remain unclear. Using a mouse model of ALS that expresses a human gene mutation, we found that the microglia subtype DAM begins to appear following motor neuron degeneration, primarily in the brain stem and spinal cord.

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Bile acids are closely associated with necrotizing enterocolitis (NEC), and their accumulation has cytotoxic effects on cells. However, the specific bile acid subtype involved in NEC and its underlying mechanisms remains poorly understood, limiting the therapeutic potential of bile acids as treatment targets. In the present study, deoxycholic acid (DCA) accumulation in the intestinal lumen exacerbated NEC-induced intestinal damage.

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Article Synopsis
  • - The study focuses on addressing wrinkles in hot diaphragm preforming, identifying inter-ply slipping resistance as a significant cause of these wrinkles.
  • - Inter-ply slipping behaviors of carbon fiber-reinforced epoxy resin composite prepregs were analyzed and categorized into three stages based on fiber and resin characteristics during slipping.
  • - The research established an inter-ply slipping kinetic equation that incorporates temperature effects and improved wrinkle prediction accuracy when integrated into the ABAQUS program.
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Objective: In the Asian population, variants are the most common cause of amyotrophic lateral sclerosis (ALS). To date, more than 200 variants have been reported in . This study aimed to summarize the genotype-phenotype correlation and determine whether the patients carrying common variants derive from a common ancestor.

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Article Synopsis
  • A new method called BLUPmrMLM was developed to improve the analysis of large genetic datasets by reducing computational time and improving accuracy when identifying genetic traits.
  • This method utilizes vectorized Wald tests and adaptive best subset selection to efficiently estimate marker effects and reduce the workload during analysis.
  • In simulations and real-world applications, BLUPmrMLM demonstrated better performance in terms of speed, power, and accuracy than existing methods, making it a valuable tool for researchers working with complex genetic data.
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The unripe fruit of the plant L., commonly known as bitter gourd or bitter melon, is a popular vegetable and medical herb in many parts of the world and is characterized by its strong bitter taste. In our endeavor to decode its bitter taste, the dichloromethane fraction of 75% methanol extract of bitter gourd was found to be intensely bitter.

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Amyotrophic lateral sclerosis is a devastating neurodegenerative disease for which the current treatment approaches remain severely limited. The principal pathological alterations of the disease include the selective degeneration of motor neurons in the brain, brainstem, and spinal cord, as well as abnormal protein deposition in the cytoplasm of neurons and glial cells. The biological markers under extensive scrutiny are predominantly located in the cerebrospinal fluid, blood, and even urine.

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Common wheat ( L.) production in China is challenged by stripe (yellow) rust, powdery mildew, and Fusarium head blight. Airborne inoculum of these pathogens is the causative driver of disease epidemics.

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Rapid advancements and proliferation of electronic devices in the past decades have significantly intensified electromagnetic interference (EMI) issues, driving the demand for more effective shielding materials. Herein, we introduce a novel two-layer graphene nonwoven fabric (2-gNWF) that shows excellent EMI shielding properties. The 2-gNWF fabric comprises a porous fibrous upper layer and a dense conductive film-like lower layer, specifically designed to enhance EMI shielding through the combined mechanisms of reflection, multiple internal reflections, and absorption of electromagnetic waves.

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  • Scientists created a tool called U-AKIpredTM to help doctors predict if critically ill patients will get acute kidney injury (AKI) within 12 hours, using urine tests.
  • They studied 680 patients, and found that 12 specific markers in urine, especially three main ones, were great for this prediction.
  • The tool showed really good results, helping doctors make decisions to prevent or treat AKI more effectively, and it can be accessed online for easy use.
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Introduction: Smilacis Glabrae Rhizoma (SGR) is rich in chemical constituents with a variety of pharmacological activities. However, in-depth research has yet to be conducted on the chemical and pharmacodynamic constituents of SGR.

Materials And Methods: In this study, the chemical constituents of SGR were analyzed using liquid chromatography-mass spectrometry, and the pharmacodynamic compounds responsible for the medicinal effects of SGR were elucidated through a literature review.

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KCNA1 is the coding gene for Kv1.1 voltage-gated potassium-channel α subunit. Three variants of KCNA1 have been reported to manifest as paroxysmal kinesigenic dyskinesia (PKD), but the correlation between them remains unclear due to the phenotypic complexity of KCNA1 variants as well as the rarity of PKD cases.

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Article Synopsis
  • * This review discusses different ways to modify CNTs (such as covalent and non-covalent methods) to improve their compatibility and dispersion in the PS matrix, particularly through surface modifications with PS-related polymers.
  • * It also summarizes the key properties of CNT/PS composites (mechanical, electrical, thermal, and electromagnetic shielding) and highlights their potential applications in electronics, sensors, and energy storage.
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This study addresses the challenge of achieving foam with a high expansion ratio and poor mechanical properties, caused by the low melt viscosity of semi-crystalline polypropylene (PP). We systematically employ a modification approach involving blending PP with polyolefin elastomers (POE), irradiation crosslinking, and fiber reinforcement to prepare fiber-reinforced crosslinked PP/POE composite foam. Through optimization and characterization of material composition and processing conditions, the obtained fiber-reinforced crosslinked PP/POE composite foam exhibits both low density and high performance.

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Using fiber-reinforced polymer composite to replace metal in window frames has become a trend in aircraft manufacturing to achieve structural weight reduction. This study proposes an innovative winding compression molding process for continuous production of aircraft window frames using continuous carbon fiber-reinforced polyamide 6 thermoplastic composite filaments (CF/PA6). Through process parameter optimization, the production cycle of CF/PA6 composite window frames was controlled within 5 min, with an ultra-low porosity of 0.

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Polyvinyl chloride (PVC) foam, valued for its mechanical and thermal properties along with cost-effectiveness, is extensively utilized across diverse industries. However, its high volatile organic compound (VOC) emissions hinder its adoption in eco-friendly synthetic leather. This study proposes a solution by optimizing the formulation design and foaming processes and achieving mechanical property enhancement via carbon-fiber-reinforced PVC composite foam (CF/PVC).

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To address the challenge of balancing the mechanical, thermal insulation, and flame-retardant properties of building insulation materials, this study presented a facile approach to modify the rigid polyurethane foam composites (RPUFs) via commercial expandable graphite (EG), ammonium polyphosphate (APP), and silica aerogel (SA). The resulting EG/APP/SA/RPUFs exhibited low thermal conductivity close to neat RPUF. However, the compressive strength of the 6EG/2APP/SA/RPUF increased by 49% along with achieving a V-0 flame retardant rating.

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Article Synopsis
  • Over a 15-year period, researchers identified 2,900 isolates from different regions in China and documented 332 virulence phenotypes, with 11 being the most common.
  • Findings reveal that while certain resistance genes remain effective against wheat leaf rust, others have significantly decreased in effectiveness, indicating a need for ongoing monitoring and discovery of new virulent combinations.
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The utilization of hot carriers as a means to surpass the Shockley-Queasier limit represents a promising strategy for advancing highly efficient photovoltaic devices. Quantum dots, owing to their discrete energy states and limited multi-phonon cooling process, are regarded as one of the most promising materials. However, in practical implementations, the presence of numerous defects and discontinuities in colloidal quantum dot (CQD) films significantly curtails the transport distance of hot carriers.

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Bile acids (BAs) have increasingly been implicated in the onset and progression of necrotizing enterocolitis (NEC); multiple findings have demonstrated their ability to induce damage to the intestinal epithelium, thereby exacerbating disease severity. Although we previously showed that melatonin was able to treat NEC by correcting the Treg/Th17 imbalance, the modulatory effect of melatonin on BAs remains unclear. In this study, we conducted transcriptome analysis on intestinal tissues from patients with NEC and validated these findings.

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