Publications by authors named "Yanjie Xia"

Background: Congenital adrenal hyperplasia (CAH) is a common metabolic genetic disease. Early diagnosis and intervention are crucial to improve the prognosis. Noninvasive prenatal diagnosis (NIPD) is an early, safe, and accurate method.

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  • - The study aimed to enhance the identification of mutations in the CYP21A2 gene, which is crucial for understanding 21-hydroxylase deficiency (21-OHD), using a new method called CNVplex alongside SNaPshot and direct sequencing techniques.
  • - Results indicated that these methods were highly effective, with 95.6% of affected alleles detected and prevalent mutations found in nearly 70% of alleles among 113 patients; various mutation types, including large rearrangements and novel haplotypes, were also identified.
  • - The findings suggest that combining CNVplex, SNaPshot, and direct sequencing could provide a comprehensive and reliable approach for diagnosing 21-OHD, covering both common and
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As the consumption of antibiotics rises, they have generated some negative impacts on organisms and the environment because they are often unable to be effectively degraded, and seeking effective detection methods is currently a challenge. Covalent-organic frameworks (COFs) are new types of crystalline porous crystals created based on the strong covalent interactions between blocked monomers, and COFs demonstrate great potential in the detection of antibiotics from aqueous solutions because of their large surface area, adjustable porosity, recyclability, and predictable structure. This review aims to present state-of-the-art insights into COFs (properties, classification, synthesis methods, and functionalization).

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Background: Urban living is linked to better health outcomes due to a combination of enhanced access to healthcare, transportation, and human development opportunities. However, spatial inequalities lead to disparities, resulting in urban health advantages and penalties. Understanding the relationship between health and urban development is needed to generate empirical evidence in promoting healthy aging populations.

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  • Marfan syndrome (MFS) is a hereditary connective tissue disorder primarily linked to mutations in the FBN1 gene, which can lead to various clinical symptoms in affected individuals.
  • A study involving a four-generation Chinese family used exome sequencing and various analyses to identify and assess the pathogenicity of genetic variants in FBN1, revealing a significant intronic variant causing MFS symptoms.
  • The research highlights the necessity of evaluating intronic variants' effects on mRNA and protein structure, leading to an understanding of how such modifications can disrupt normal gene function and contribute to MFS.
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Designing highly efficient and stable electrocatalysts for hydrogen evolution reactions (HER) is essential to the production of green and renewable hydrogen. Metal-organic framework (MOF) precursor strategies are promising for the design of excellent electrocatalysts because of their porous architectures and adjustable compositions. In this study, a hydrogen-bonded organic framework (HOF) nanowire was developed as a precursor and template for the controllable and scalable synthesis of CoRu-MOF nanotubes.

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China's health gains over the past decades face potential reversals if climate change adaptation is not prioritized. China's temperature rise surpasses the global average due to urban heat islands and ecological changes, and demands urgent actions to safeguard public health. Effective adaptation need to consider China's urbanization trends, underlying non-communicable diseases, an aging population, and future pandemic threats.

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Background: Renal cell carcinoma (RCC), arising from the renal tubular epithelium, is one of the most common types of genitourinary malignancies. Based on the Gene Expression Omnibus (GEO) database (GSE100666), S100 calcium-binding protein A8 (S100A8) was highly expressed in RCC tissues. S100A8, an inflammatory regulatory factor, has emerged as an important mediator associated with the occurrence and development of cancer.

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  • The study examines the link between long-term exposure to fine particulate matter (PM) and the risk of cardiovascular disease (CVD) in low- and middle-income countries, specifically in a large cohort from China.
  • Over 11 years, researchers tracked over 42,000 adults, finding 2,190 deaths, with 732 due to CVD, and a notable percentage experiencing new CVD incidents.
  • Results indicated that increases in PM levels correlate with higher risks for major CVD incidents and overall mortality, emphasizing the urgency for improved air quality policies.
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  • The study aimed to perform genetic testing and prenatal diagnosis for a 23-year-old woman with moderate intellectual disability (ID).
  • Blood and amniotic fluid samples were analyzed to detect genetic variations, leading to the discovery of a likely pathogenic variant in the DLG4 gene in both the mother and her fetus, as well as a deletion in the DMD gene of the fetus.
  • The findings suggest that the DLG4 gene variant may be responsible for the mother's ID, and the fetal genetic alterations could increase the risk of similar disabilities.
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Objective: To assess the value of copy number variation sequencing (CNV-seq) for revealing the genetic etiology of fetuses with isolated ventricular septal defect (VSD).

Methods: From December 2017 to December 2020, 69 fetuses with isolated VSD were identified at the First Affiliated Hospital of Zhengzhou University. Meanwhile, 839 similar prenatal cases were selected from public databases including Wanfang data, Wanfang Medicine, and China National Knowledge Infrastructure (CNKI) by using keywords such as "Ventricular septal defect", "Copy number variation", and "Prenatal".

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Background: Next-generation sequencing for copy number variants is often used as a follow-up investigation of unusual fetal ultrasound results and is capable of detecting copy number variations with a resolution of ∼0.1 Mb. In a prenatal setting, observation and subsequent management of pregnancies with a fetal variant of uncertain significance remains problematic for counseling.

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The application scope of metal-organic frameworks (MOFs) can be extended by rationally designing the architecture and components of MOFs, which can be achieved via a metal-containing solid templated strategy. However, this strategy suffers from low efficiency and provides only one specific MOF from one template. Herein, we present a versatile templated strategy in which organic ligands are weaved into hydrogen-bonded organic frameworks (HOFs) for the controllable and scalable synthesis of MOF nanotubes.

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Background: Oligohydramnios or polyhydramnios, is associated with chromosomal aberrations, particularly aneuploidy. However, its correlation with copy number variation (CNV) remains unclear.

Methods: We retrospectively analyzed 428 cases with an abnormal level of amniotic fluid, comprising of 139 cases of single ultrasound findings (SU group) and 289 cases of multiple ultrasound findings (MU group), by CNV sequencing (CNV-Seq) and followed their pregnancy outcomes.

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  • * Researchers collected blood samples and used techniques like PCR and Sanger sequencing to analyze the gene, discovering 35 different variants, with most occurring in exon 4.
  • * Notably, two previously unreported frameshifting variants were found, which enhanced understanding of MMACHC variants in this population and informed prenatal diagnostic options for affected families.
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Objective: To assess the value of low-depth whole-genome copy number variation sequencing (CNV-seq) for the analysis of chromosomal copy number variations among fetuses with echogenic bowel (EB).

Methods: A total of 163 fetuses were included in this study. Amniotic fluid (162 cases) or chorionic villi (1 case) were collected and subjected to CNV-seq for the analysis of CNVs.

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  • Among the 155 patients, the majority (103) had salt-wasting forms, while the study identified both common (90.6%) and rare mutations (9.4%), including four previously unreported variants.
  • The research provided a comprehensive mutation profile for Chinese 21-OHD patients, enhancing understanding of the genetic variations and aiding in better diagnosis and prenatal counseling.
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Objective: To analyze the clinical features and genetic basis for a child featuring elevated creatine kinase (CK).

Methods: Next-generation sequencing (muscular dystrophy related gene panel) was carried out for the proband. Candidate variants were verified by Sanger sequencing of the child and his parents.

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Background: Phenylketonuria (PKU) is a metabolic disease that can cause severe and irreversible brain damage without treatment.

Methods: Here we developed a non-invasive prenatal diagnosis (NIPD) technique based on haplotypes via paired-end molecular tags and weighting algorithm and applied it to the NIPD of PKU to evaluate its accuracy and feasibility in the early pregnancy. A custom-designed hybridization probes containing regions in phenylalanine hydroxylase (PAH) gene and its 1 Mb flanking region were used for target sequencing on genomic and maternal plasma DNA (7-13 weeks of gestation) to construct the parental haplotypes and the proband's haplotype.

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Clinical treatment of triple negative breast cancer (TNBC) is very poor for lack of effective treatment combination selection. Protein C receptor (PROCR) is a novel cancer stem marker in TNBC patients tumor tissues. Developed based on peptide BP10 with affinity to PROCR as a targeting element, constructing a peptide drug conjugate of BP10 covalently coupling doxorubicin with disulfide bonds.

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Despite the broad anticancer activity, whereas the clinical application of luteolin is hindered by unsatisfactory water solubility and non-targeting. Herein, targeted inhibitory effects of luteolin-loading HER2 nanospheres (Her-2-NPs) were successfully prepared by thin film ultrasonic method. In comparison with the non-targeted nanospheres, Her-2 nanospheres could significantly boost the intake of luteolin in SK-BR-3 cells.

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Objectives: To evaluate the clinical potential of a higher resolution noninvasive prenatal screening (NIPS-Plus) test for detection of microdeletion/microduplication syndromes (MMS) in addition to common aneuploidies.

Methods: In a multicenter prospective study, 37,002 pregnant women with unremarkable first-trimester ultrasound scans had a NIPS-Plus test. Ultrasound screen positive women were not included in this study.

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The condition 17a-Hydroxylase/17,20-lyase deficiency (17-OHD) is a rare kind of congenital adrenal hyperplasia (CAH) characterized by failure to synthetize cortisol, adrenal androgens and gonadal steroids. Partial deficiency is much rarer, presenting with subtler symptoms. In this study, we summarized the clinical characteristics and identified the underlying gene mutation in four Chinese 46,XX patients with partial 17-OHD.

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  • - The study aimed to explore the clinical characteristics and genetic variations in five Chinese families diagnosed with Dysferlinopathy using next-generation sequencing (NGS) and validation methods.
  • - Researchers identified ten DYSF gene variants, including known pathogenic ones and six novel variants, with some predicted to be pathogenic and others classified as of uncertain significance, following ACMG guidelines.
  • - The findings suggest that these DYSF gene variants likely contribute to the development of Dysferlinopathy among the patients studied, expanding our understanding of the genetic variations associated with this condition.
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Objective: 17 α-hydroxylase/17, 20-lyase deficiency (17-OHD) is a rare recessive hereditary disease that can be attributed to cytochrome P450 17 α-hydroxylase deficiency caused by CYP17A1 gene mutations.

Methods: A large cohort of 10 Chinese Han patients with 17-OHD from 2012 to 2020 were enrolled. The clinical and biochemical features were investigated, and genetic mutations of CYP17A1 were analyzed by polymerase chain reaction-Sanger sequencing.

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