Publications by authors named "Xin-yi Xia"

Background: Human immunodeficiency virus (HIV) and acquired immune deficiency syndrome (AIDS) immunological nonresponders (HIV/AIDS-INRs) whose CD4 cell counts do not rebound after highly active antiretroviral therapy (HAART) treatment usually experience severely impaired immune function and high mortality. Traditional Chinese medicine (TCM) has many advantages in the field of AIDS, especially its promotion of patients' immune reconstitution. Accurate differentiation of TCM syndromes is a prerequisite for guiding an effective TCM prescription.

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Objective: To isolate extracellular vesicles (EVs) from ( ), to examine their morphology, particle size, and distribution, to study the effect of EVs derived from ( EVs) on intracellular reactive oxygen species (ROS) production and cytokine secretion in dendritic cells (DCs), and to make preliminary exploration of EVs' effect on the immune regulation of DCs.

Methods: EVs were obtained by ultrafiltration concentration and the protein concentration was determined by BCA assay. The morphology of EVs was observed through negative staining electron microscopy (EM).

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Article Synopsis
  • The HIV/AIDS pandemic is a critical global health issue, particularly for immunological nonresponders (HIV/AIDS-INRs), who experience higher mortality rates.
  • Traditional Chinese medicine (TCM) shows promise in treating these patients by focusing on immune reconstitution, with an emphasis on accurate syndrome differentiation for effective treatment.
  • A study conducted in Liangshan, China, identified the Yang deficiency of spleen and kidney (YDSK) syndrome in HIV/AIDS-INRs, revealing 62 differentially expressed proteins that may serve as potential biomarkers for targeted TCM therapies.
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Objective: To compare the efficiency of the target gene panel method and whole-exome sequencing (WES) in detecting idiopathic hypogonadotropic hypogonadism (IHH), and select a more suitable gene detection method.

Methods: We selected 24 genes closely related to the molecular pathogenesis of IHH to make up the gene panel, detected the mutation sites in 73 patients with IHH using the panel method, and verified the results of sequencing with the Sanger method. Using the key words "idiopathic hypogonadotropic hypogonadism", we searched databases for relevant literature, calculated the positive rate of IHH detected by WES and compared it with that detected with the panel method.

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Severe COVID-19 disease caused by SARS-CoV-2 is frequently accompanied by dysfunction of the lungs and extrapulmonary organs. However, the organotropism of SARS-CoV-2 and the port of virus entry for systemic dissemination remain largely unknown. We profiled 26 COVID-19 autopsy cases from four cohorts in Wuhan, China, and determined the systemic distribution of SARS-CoV-2.

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Background: Vitamin D deficiency has been reported to be associated with diabetic microvascular complications, but previous studies have only focused on the relationship between vitamin D and specific complications. Therefore, we aimed to explore the relationship between vitamin D level and diabetic microvascular complications in general, including diabetic retinopathy (DR), diabetic nephropathy (DN), and diabetic peripheral neuropathy (DPN).

Methods: This was a cross-sectional study of 815 patients with type 2 diabetes mellitus (T2DM).

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Objective: To investigate the mutation of the DPY19L2 gene in patients with globozoospermia.

Methods: We collected the clinical data and peripheral blood from 2 patients with globozoospermia and screened for mutation of the DPY19L2 gene by PCR amplification and DNA sequencing technology.

Results: The sperm from the 2 globozoospermia patients were round morphologically under the light microscope, with deeply stained nuclei but no acrosome.

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Objective: To investigate the relationship between microRNA-34b/c single nucleotide polymorphism (SNP) rs4938723 and the risk of male infertility.

Methods: This case-control study included 553 males aged 19-40 (29.42 ± 5.

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Background: Gastrointestinal symptoms are not rare among coronavirus disease 2019 (COVID-19) patients, but there have been no reports regarding convalescent plasma therapy for the recovery of gastrointestinal problems in COVID-19 patients.

Case Presentation: We present two cases of patients with COVID-19-associated recurrent diarrhea and positive fecal occult blood who successfully recovered after a one-time convalescent plasma administration.

Conclusion: When COVID-19 patients develop recurrent or refractory gastrointestinal symptoms and fail to respond to the available treatment, alternative therapy with convalescent plasma administration may be considered.

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Objective: To investigate the correlation of the single nucleotide polymorphisms rs995030 and rs4474514 of the tyrosine kinase receptor-specific ligand (KITLG) gene with the risk of male infertility.

Methods: This study included 360 patients with idiopathic male infertility and 338 healthy fathers as controls, all from the surrounding areas of Nanjing. According to the 5th edition of the WHO Laboratory Manual for the Examination and Processing of Human Semen, we divided the infertility patients into an azoospermia (n = 143), a severe oligozoospermia (n = 159), and an oligozoospermia group (n = 58).

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Objective: To investigate the association between the 5T site polymorphism of the cystic fibrosis transmembrane conductance regulator (CFTR) gene and the risk of congenital bilateral absence of the vas deferens (CBAVD).

Methods: This case-control study included 40 male patients with isolated CBAVD in the experimental group and 104 healthy men as controls. We used the Sanger sequencing method to encode the CFTR gene intron 9 (TG) m-n(T) and type the haplotypes, followed by a review and meta-analysis of the data obtained from the experiment and relevant literature from the PubMed, Web of science, Medline, CNKI and an exploration of the correlation between 5T mutation and the risk of CBAVD.

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Medical ultrasound images are corrupted by speckle noise, and despeckling methods are required to effectively and efficiently reduce speckle noise while simultaneously preserving details of tissues. This paper proposes a despeckling approach named the Gabor-based anisotropic diffusion coupled with the lattice Boltzmann method (GAD-LBM), which uses the lattice Boltzmann method (LBM) to fast solve the partial differential equation of an anisotropic diffusion model embedded with the Gabor edge detector. We evaluated the GAD-LBM on both synthetic and clinical ultrasound images, and the experimental results suggested that the GAD-LBM was superior to other nine methods in speckle suppression and detail preservation.

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Objective: Detection of azoospermia factor (AZF) microdeletions on the Y chromosome is one of the auxiliary strategies recognized at home and abroad for the examination of male infertility. Traditional PCR gel electrophoresis fails to meet the clinical needs due to its shortcomings. The purpose of this study was to explore the feasibility of multiplex fluorescence PCR in the detection of AZF microdeletions.

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Objective: To study the relationship of the single nucleotide polymorphisms (SNP) rs34349826 (c.104 A>G) and rs6521 (c.114 C>G) of the luteinizing hormone beta-subunit (LHB) gene with male infertility in Chinese men.

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Objective: To investigate the correlation between the single nucleotide polymorphism (SNP) rs662 of the paraoxonase 1 gene (PON1) and the risk of male infertility.

Methods: This case-control study included 403 male idiopathic infertility patients aged 29.00 ± 4.

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Mutations in the COL4A5 gene result in X-linked Alport syndrome, homozygous or compound heterozygous mutations in COL4A3 or COL4A4 are responsible for autosomal recessive Alport syndrome, and heterozygous mutations in COL4A3 or COL4A4 cause autosomal dominant Alport syndrome or benign familial hematuria. Recently, the existence of a digenic inheritance in Alport syndrome has been demonstrated. We here report heterozygous COL4A3 and COL4A4 digenic mutations in cis responsible for benign familial hematuria.

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The transcription factor SOX10, as a major actor in the development of the neural crest, plays a key role in the maintenance of progenitor cell multipotency, lineage specification, and cell differentiation. Abnormalities of neural crest development in humans lead to a number of genetic diseases known as neurocristopathies or neural crest disorders. The mutation of SOX10 can cause Kallmann syndrome (KS), which is a clinically and genetically heterogeneous condition and defined by the association between anosmia and hypogonadotropic hypogonadism due to incomplete migration of neuroendocrine gonadotropin-releasing hormone (GnRH) cells along the olfactory, vomeronasal, and terminal nerves.

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Thin basement membrane nephropathy (TBMN), autosomal dominant Alport syndrome (ADAS), and focal segmental glomerulosclerosis (FSGS) are kidney diseases that differ in clinical diagnosis, treatment, and prognosis. Nevertheless, they may result from the same causative genes. Here, we report 3 COL4A4 heterozygous mutations (p.

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Dyschromatosis symmetrica hereditaria (DSH) is a rare autosomal dominant pigmentary genodermatosis, which is characterized by a mixture of hyperpigmented and hypopigmented macules on the dorsal of the hands and feet, and on the face presented like freckle. Identification of RNA-specific adenosine deaminase 1 (ADAR1) gene results in DSH. This study was mainly to explore the pathogenic mutation of ADAR1 gene and provide genetics counselling and prenatal diagnostic testing for childbearing individuals.

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Alport syndrome (AS) is a clinically and genetically heterogeneous, progressive nephropathy caused by mutations in COL4A3, COL4A4, and COL4A5, which encode type IV collagen. The large sizes of these genes and the absence of mutation hot spots have complicated mutational analysis by routine polymerase chain reaction (PCR)-based approaches. Here, in order to design a rapid and effective method for the genetic diagnosis of AS, we developed a strategy by utilizing targeted capture associated with next-generation sequencing (NGS) to analyze COL4A3, COL4A4, and COL4A5 simultaneously in 20 AS patients.

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Objective: To investigate the correlation of the single nucleotide polymorphism (SNP) rs1042522 of the tumor protein p53 (TP53) gene with the risk of male infertility.

Methods: This casecontrol study included 380 male patients with idiopathic infertility and 398 normal fertile men as controls from the Nanjing area. We genotyped the SNP rs1042522 of the TP53 gene by Sequence Mass Array and analyzed the correlation of the SNP with male infertility using the logistic regression model.

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Objective: To investigate the correlation of the single nucleotide polymorphism (SNP) rs4880 of the superoxide dismutase 2 (SOD2) gene with the risk of male infertility.

Methods: This casecontrol study included 519 male patients with idiopathic infertility (aged 19-40 [28.93±4.

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The androgen receptor (AR), as a ligand-dependent transcription protein and a member of the steroid receptor superfamily widely present in the body, is involved in the adjustment of the function of androgens and plays an important role in spermatogenesis. Androgens participate in spermatogenesis by binding AR and initiating the expression of the target gene. The polymorphisms of the AR gene may change the structure of AR and affect its avidity of binding androgens, making their downstream target genes unable to transcribe proteins.

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Objective: To determine the correlation of the CYP1A1 (rs4646422) gene polymorphisms with male infertility in the Chinese Han population.

Methods: Using the Mass ARRAY iPLEX GOLD technique, we conducted a case-control study on theCYPlA1 (rs4646422) gene polymorphisms in 636 infertile males aged 21-49 years (case group) and 442 normal healthy men aged 23-47 years (control group) of the Chinese Han population. We analyzed the genotypes and allele frequencies in the two groups ofsubjects with the SPSS 20.

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Objective: To investigate the correlation of the single nucleotide polymorphisms(SNPs) rs1799930 and rs1799931 of the N-acetyltransferase 2 gene( NAT2) with the risk of male infertility in Nanjing area.

Methods: We made a case-control study of 636 cases of male idiopathic infertility and 442 normal fertile men as controls. We genotyped the two SNPs by Sequenom Mass Array, analyzed the correlation of different genotypes with male infertility using the logistic regression model, and determined the association of the linkage effect of the two SNPs with male infertility by haplotype analysis.

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