Publications by authors named "Song Xiaonan"

Malaria remains a major public health concern. The rapid spread of resistance to antimalarial drugs is a major challenge for malaria eradication. Timely and accurate molecular monitoring based on practical detection methods is a critical step toward malaria control and elimination.

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Drug resistance surveillance is a major integral part of malaria control programs. Molecular methods play a pivotal role in drug resistance detection and related molecular research. This study aimed to develop a rapid and accurate detection method for drug resistance of Plasmodium falciparum (P.

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AMPylation is a post-translational modification in which AMP is added to the amino acid side chains of proteins. Here we show that, with ATP as the ligand and actin as the host activator, the effector protein LnaB of Legionella pneumophila exhibits AMPylase activity towards the phosphoryl group of phosphoribose on PR-Ub that is generated by the SidE family of effectors, and deubiquitinases DupA and DupB in an E1- and E2-independent ubiquitination process. The product of LnaB is further hydrolysed by an ADP-ribosylhydrolase, MavL, to Ub, thereby preventing the accumulation of PR-Ub and ADPR-Ub and protecting canonical ubiquitination in host cells.

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Article Synopsis
  • There has been a significant increase in inclusion body hepatitis (IBH) cases since 2012, leading to major economic losses in the poultry industry.
  • The study focused on the highly pathogenic fowl adenovirus (FAdV) strain HN1472, isolated from a laying flock affected by IBH, examining its genetic mutations, pathogenicity, and phylogenetic information.
  • Findings indicated that HN1472 is a recombinant strain with notable genetic divergence, causing high mortality in chickens and suggesting a widespread presence in various tissues following infection.
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  • Defect-engineered metal-organic frameworks (DEMOFs) are advanced materials that have not been thoroughly explored for catalysis, particularly in the synthesis of (E)-vinylboronates, which are important for asymmetric synthesis.
  • A series of DEHKUST-1 catalysts were designed by partially substituting standard linkers with defective ones to enhance hydroboration reactions of alkynes, significantly outperforming the traditional defect-free HKUST-1.
  • The improved catalytic activity of the Dd variant, with a 0.8 doping ratio of defective linkers, was attributed to better access to the active Cu sites and higher selectivity and yields in producing (E)-vinylboronates, as confirmed by density functional
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A transcriptome profiles the expression levels of genes in cells and has accumulated a huge amount of public data. Most of the existing biomarker-related studies investigated the differential expression of individual transcriptomic features under the assumption of inter-feature independence. Many transcriptomic features without differential expression were ignored from the biomarker lists.

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Background: It has been proposed that bacterial lysates may serve as a suitable immunomodulatory oral medication to improve and control asthma symptoms. However, the difference in its efficacy in adults and children remains unclear.

Methods: Randomized controlled trials (RCTs) evaluating OM-85 add-on therapy in asthma patients up to December 2021 were searched using PubMed, Scopus, Web of Science, China National Knowledge Infrastructure (CNKI), Wanfang database, and WP (WeiPu) database.

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Highly pathogenic fowl adenovirus serotype 4 (FAdV-4) is an acute infectious disease with severe economic impact, causing chicken hepatitis hydropericardium syndrome (HHS) and high mortality. In the present study, we evaluated the immunogenicity of the recombinant Fiber2-knob protein (F2-Knob) as an FAdV-4 candidate subunit vaccine in 14-day-old SPF chickens. The knob domain is the functional region of the viral surface protein Fiber2.

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Patients with elevated intracranial pressure (ICP) tend to have optic disc edema and a thicker optic nerve sheath diameter (ONSD). However, the cut-off value of the optic disc height (ODH) for evaluating elevated ICP is not clear. This study was conducted to evaluate ultrasonic ODH and to investigate the reliability of ODH and ONSD for elevated ICP.

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Cerebral malaria (CM), caused by Plasmodium falciparum, is the primary cause of death from severe malaria. Even after immediate parenteral therapy with antimalarial drugs, the mortality rate remains 15 to 25%. Currently, no effective therapeutic agents are available for the radical treatment of CM.

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Since single nucleotide polymorphisms (SNPs) have attracted attention, there have been many explorations and improvements in screening and detection methods for SNPs. Traditional methods are complex and time-consuming and rely on expensive instruments. Therefore, there is an urgent need for a low-cost, simple, and accurate method that is convenient for use in resource-poor areas.

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Cerebral malaria (CM) caused by is a fatal neurological complication of malaria, resulting in coma and death, and even survivors may suffer long-term neurological sequelae. In sub-Saharan Africa, CM occurs mainly in children under five years of age. Although intravenous artesunate is considered the preferred treatment for CM, the clinical efficacy is still far from satisfactory.

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Background: Molecular markers for monitoring resistance could help improve malaria treatment policies. Delayed clearance of Plasmodium falciparum by artemisinin-based combination therapies (ACTs) has been reported in several countries. In addition to PfKelch13 (pfk13), new drug resistance genes, P.

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Rodent malaria caused by 17XL (Py 17XL) is an ideal animal model for human malaria studies. Although the gut microbiota plays an important role in the occurrence and development of infectious diseases, the gut microbiota associated with Py 17XL infection remains unclear. In the current study, the gut microbiota composition of infected BALB/c mice was surveyed.

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Single-nucleotide polymorphisms and genotyping related to genetic detection are several of the focuses of contemporary biotechnology development. Traditional methods are complex, take a long time, and rely on expensive instruments. Therefore, there is an urgent need for a rapid, simple, and accurate method convenient for use in resource-poor areas.

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The genus of parasites can cause malaria, which is a prevalent infectious disease worldwide, especially in tropical and subtropical regions. C57BL/6 mice infected with ANKA (PbA) will suffer from experimental cerebral malaria (ECM). However, the gut microbiota in C57BL/6 mice has rarely been investigated, especially regarding changes in the intestinal environment caused by infectious parasites.

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Introduction/aims: Ultrasound (US) studies have demonstrated patchy enlargement of spinal and peripheral nerves in Guillain-Barré syndrome (GBS). However, whether ultrasound yields useful information for early classification of GBS has not been established. We aimed to evaluate nerve ultrasound in patients with GBS in northern China and compare the sonographic characteristics between demyelinating and axonal subtypes.

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Posterior circulation cerebral infarction (PCCI) can lead to deceased infratentorial cerebral blood flow (CBF) and metabolism. Neural activity is closely related to regional cerebral blood flow both spatially and temporally. Transcranial Doppler (TCD) combined with quantitative electroencephalography (QEEG) is a technique that evaluates neurovascular coupling and involves synergy between the metabolic and vascular systems.

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Article Synopsis
  • The study highlights the significant public health threat posed by imported malaria parasites with drug resistance from Africa to non-malarial regions like Wuhan, China.
  • Researchers conducted a cross-sectional analysis from 2017-2019, collecting blood samples from 106 migrant workers to assess mutations in key malaria resistance genes (pfcrt, pfmdr1, pfk13).
  • Findings indicated high amplification success rates for the tested genes, revealing notable mutations, with 9.62% for pfcrt 76 T and 47.17% for pfmdr1 184F, along with several unique haplotypes observed among the isolates.
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Background: The emerging Coronavirus Disease-2019 (COVID-19) has challenged the public health globally. With the increasing requirement of detection for SARS-CoV-2 outside of the laboratory setting, a rapid and precise Point of Care Test (POCT) is urgently needed.

Methods: Targeting the nucleocapsid (N) gene of SARS-CoV-2, specific primers, and probes for reverse transcription recombinase-aided amplification coupled with lateral flow dipstick (RT-RAA/LFD) platform were designed.

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Paroxysmal dyskinesias are a group of neurological diseases characterized by intermittent episodes of involuntary movements with different causes. Paroxysmal kinesigenic dyskinesia (PKD) is the most common type of paroxysmal dyskinesia and can be divided into primary and secondary types based on the etiology. Clinically, PKD is characterized by recurrent and transient attacks of involuntary movements precipitated by a sudden voluntary action.

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Aim: It was aimed to concern about the satisfaction and procedural complications of patients during the thoracoscopy exist of hands-on training in this present study.

Patients And Methods: The patients with non-small-cell carcinoma underwent video-assisted thoracoscopic surgery (VATS) lobectomy during hands-on training courses at thoracoscopic center in our hospital and collected from January 2009 and December 2014. The rates of satisfaction and complications of patients were compared from hands-on training group and control group.

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Rationale: Autoimmune encephalitis (AE) is a heterogeneous group of recently identified disorders. Despite severe and even prolonged neurologic deficits, dramatic improvements may occur with proper immunotherapy in some patients with AE. Antineuronal antibodies have been discovered in patients' serum and cerebrospinal fluid (CSF).

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Rationale: Superior vena cava syndrome (SVCS) is the obstruction of blood flow through the SVC, causing complete or partial blockade of the collateral circulation of returning venous blood. SVCS is frequently presented with facial, neck, trunk, and upper limbs swelling and so on. However, to the best of our knowledge, the obstruction of the venous return in the spinal veins is rarely a manifestation of SVCS.

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