Publications by authors named "Xu-ying Li"

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  • * Researchers sequenced the exomes of 205 MSA patients and discovered a new harmful variant in the COQ2 gene in one familial case, along with several pathogenic variants in sporadic cases that suggest a genetic link to cerebellar ataxia.
  • * The study identified a significant association between a specific variant in the PARK7 gene and MSA, as well as gene expansions related to cerebellar ataxia in some patients, pointing to a greater genetic complexity in the disease.
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Autosomal recessive spinocerebellar ataxias (SCARs) are a heterogeneous group of neurodegenerative disorders. VPS13D gene is currently the only gene associated with autosomal recessive spinocerebellar ataxia type 4 (SCAR4), also known as VPS13D dyskinesia. SCAR4 is a rare inherited disease, with only 34 reported cases reported worldwide.

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  • This study explores the role of structural variants, copy number variants, and short tandem repeats in Parkinson's disease by analyzing data from 466 PD patients and 513 controls.
  • The researchers identified tens of thousands of genetic variations and found that certain CNV deletions were more common in PD patients, particularly at the ends of autosomal chromosomes.
  • They confirmed specific deletions near the MUC19 and RXFP1 genes, along with certain repeat variants in SLC2A13, were significantly linked to PD and may affect the severity of other genetic risk factors like the LRRK2 G2385R variant.
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LINS1 is the human homolog of the Drosophila segment polarity gene that encodes an essential regulator of the wingless/Wnt signaling. By 2011, only seven pedigrees (16 patients) with eight causative variants in LINS1 gene have been reported. These cases mainly presented with infancy-/child-onset neurodevelopmental disorders, facial dysmorphia, and other clinical features, and a wide spectrum of clinically distinct phenotypes were also manifested.

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  • ALS is a severe neurodegenerative disease, and researchers found a specific genetic mutation (p.L700P) in the PCDHA9 gene among Chinese ALS patients.
  • They created mutant mice with this gene alteration, which showed symptoms like motor loss, muscle wasting, and early death, similar to human ALS.
  • The study also revealed that the mutation disrupts key cellular signaling pathways related to neuronal health and may identify PCDHA9 as a new potential gene linked to ALS.
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  • - Multiple system atrophy (MSA) is a rapid neurodegenerative disorder with no widely accepted biomarkers, unlike Parkinson's disease (PD), making it difficult to diagnose and differentiate between them.
  • - The study measured plasma levels of pyruvate and lactate and found significant differences in these metabolites between MSA, PD, and healthy controls, highlighting that pyruvate levels behave differently in these conditions.
  • - Machine-learning models showed that combining pyruvate with tea/coffee metabolites effectively diagnosed MSA and PD, suggesting that lifestyle factors may influence disease risk and metabolic profiles.
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Forever Summer Hydrangea (Hydrangea macrophylla) is a common flowering plant in the Yangtze River Valley area of China, and it is widely cultivated globally (Chen et al. 2015). In July 2023, H.

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Parkinson's disease (PD) is characterized by α-synuclein aggregation in dopaminergic (DA) neurons, which are sensitive to oxidative stress. Mitochondria aconitase 2 (ACO2) is an essential enzyme in the tricarboxylic acid cycle that orchestrates mitochondrial and autophagic functions to energy metabolism. Though widely linked to diseases, its relation to PD has not been fully clarified.

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Background: Accurate diagnosis of Parkinson's disease (PD) is challenging due to its diverse manifestations. Machine learning (ML) algorithms can improve diagnostic precision, but their generalizability across medical centers in China is underexplored.

Objective: To assess the accuracy of an ML algorithm for PD diagnosis, trained and tested on data from different medical centers in China.

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Background: Epilepsy (EP) is a common neurological disease in which 70-80% are thought to have a genetic cause. In patients with epilepsy, neurodevelopmental delay (NDD) was prevalent. Next generation of sequencing has been widely used in diagnosing EP/NDD.

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  • Brain iron accumulation disorders (BIADs) are neurodegenerative diseases linked to iron overload, and while genetics is a factor, their specific genetic causes are still poorly understood.
  • The study analyzed 84 BIAD patients to explore their genetic features, including family history and neuroimaging data, alongside genetic testing methods like whole-exome sequencing.
  • Findings revealed that 35.7% of patients had mutations influencing their condition, with familial cases showing a higher mutation rate and younger age of onset compared to sporadic cases.
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  • * Using advanced techniques like desorption electrospray ionization-mass spectrometry imaging (DESI-MSI), researchers identified 55 different lipids across various stages of atherosclerosis through histological classification.
  • * Pathway analysis revealed distinct metabolic pathways associated with different regions of the plaque, indicating that varying lipid profiles may influence the progression of atherosclerosis significantly.
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Background: Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disease characterized by predominant impairment of upper and lower motor neurons. Over 50 TARDBP mutations have been reported in both familial (FALS) and sporadic ALS (SALS). Some mutations in TARDBP, e.

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Objectives: To develop and validate a predictive nomogram for idiopathic rapid eye movement (REM) sleep behavior disorder (RBD) in a community population in Beijing, China.

Methods: Based on the validated RBD questionnaire-Hong Kong (RBDQ-HK), we identified 78 individuals with possible RBD (pRBD) in 1,030 community residents from two communities in Beijing. The least absolute shrinkage and selection operator (LASSO) regression was applied to identify candidate features and develop the nomogram.

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Previous research has shown that T-2 toxin can damage cartilage, resulting in a disease phenotype similar to osteoarthritis. The precise molecular mechanism by which T-2 toxin causes chondrocyte injury, however, is unknown. The purpose of this study was to look into the role of YAP in T-2 toxin-induced rat chondrocyte injury.

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Background And Purpose: Radiotherapy is a standard treatment for head and neck tumors that significantly increases patients' long-term survival rates. However, late cerebrovascular complications, especially carotid artery stenosis (CAS), have gained increasing attention. Investigation of biomarkers of radiation-induced CAS may help to elucidate the mechanism by which radiation induces damage to blood vessels and identify possible preventive measures against such damage.

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Serine 129-phosphorylated alpha-synuclein (pS-α-syn) is a major form of α-syn relevant to the pathogenesis of Parkinson's disease (PD), which has been recently detected in red blood cells (RBCs). However, alterations of RBC-derived pS-α-syn (pS-α-syn-RBC) in different subtypes and stages of PD remains to be investigated. In the present study, by using enzyme-linked immunosorbent assay (ELISA) to measure pS-α-syn-RBC, we demonstrated significantly higher levels of pS-α-syn-RBC in PD patients than in healthy controls.

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Background: Amyotrophic lateral sclerosis (ALS) is a devastating neurodegenerative disease with neuronal cell inclusions composed of neurofilaments and other abnormal aggregative proteins as pathological hallmarks. Approximately 90% of patients have sporadic cases (sALS), and at least 4 genes, i.e.

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  • Hartnup disease is rare, and new research on two young men diagnosed with this condition revealed novel mutations in the SLC6A19 gene, leading to unusual symptoms such as encephalopathy and spastic paraplegia.
  • An MRI showed mild brain and spinal cord abnormalities, while nerve tests indicated peripheral nerve damage, and urinary tests revealed elevated neutral amino acids.
  • Treatment with nicotinic acid and amino acids improved muscle strength and walking ability, highlighting the need for more in-depth research to understand the relationship between Hartnup disease, hereditary spastic paraplegia (HSP), and peripheral neuropathy.
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Purpose: Limited risk assessment tool to stratify the risk of PICC-related thrombosis (PICC-RVT) in breast cancer patients. This study developed a model to assess the risk of PICC-RVT in breast cancer patients.

Methods: We conducted a retrospective cohort study of 1284 breast cancer patients receiving PICC insertion from January 1, 2015, to August 31, 2019, at a cancer specialized hospital in Hunan province, China.

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Spastic paraplegias (SPGs) are a group of clinically and genetically heterogeneous neurodegenerative diseases. Mutations in 78 genes have been identified in autosomal dominant hereditary SPG (AD-HSP) and autosomal recessive hereditary SPG (AR-HSP). Compared to familial HSP, much less is known about the genetic and clinical profiles of sporadic SPGs.

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Chemotherapy-induced nausea and vomiting (CINV) is a common side effect of cancer treatment. The factors influencing CINV in breast cancer patients remain unclear. In this study, we developed a nomogram for predicting the occurrence of CINV in this group using prospective clinical data.

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Background/purpose: Sporadic early-onset Alzheimer disease (sEOAD) and its visual variant, posterior cortical atrophy (PCA), have a disease onset at less than 65 years of age with no familial aggregation. The etiology and genetic basis of these diseases remain poorly understood. Our study aimed to identify additional mutations or variants associated with sEOAD and PCA and to further examine their genetic and phenotypic spectrums.

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This paper aimed to investigate the active components and molecular mechanism of Xiao'er Resuqing Oral Liquid on hand, foot and mouth disease(HFMD) based on network pharmacology and molecular docking methods. The potential active components of 8 herbs in Xiao'er Resuqing Oral Liquid were selected through Traditional Chinese Medicine Systems Pharmacology Database(TCMSP), Batman database and relevant literature consultation. Then related targets for the medicine were analyzed through PubChem and Swiss Target Prediction database, while related targets for HFMD were analyzed through GeneCards platform.

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