Publications by authors named "Ze Liang Chen"

Canine brucellosis is primarily caused by , but other species can also cause the disease. Identifying sequences specific to and establishing PCR assays that can distinguish between and other species is essential to determine the etiology of canine brucellosis and the source of infection and to achieve effective control. We analyzed the gaps and SNPs of genomes I and II from strain RM6/66 and strain 16M using the Mauve genome alignment software, and the specificity of each of these differential regions was analyzed by BLAST.

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The study sought to establish a sensitive and specific on-site loop-mediated isothermal amplification (LAMP) for heated using a warmer pad. LAMP primers specific to the conserved gene were designed, and the LAMP reaction was optimized. The heating characteristics of the warmer pad were investigated.

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Article Synopsis
  • Brucellosis is a significant zoonotic disease that leads to economic losses; vaccination is crucial for its prevention.
  • Despite the effectiveness of live attenuated vaccines, they pose risks like residual virulence and challenges in distinguishing vaccination from infection.
  • A new bacterial ghost vaccine (A19BG) was developed via double inactivation, showing safety and efficiency, with proteomic analysis revealing key immunogenic proteins crucial for vaccine development and monitoring.
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Background: Severe fever with thrombocytopenia syndrome (SFTS), caused by the SFTS virus (SFTSV), is an acute infectious disease transmitted by ticks that has recently been identified. There are no reports of epidemic serotypes in Liaoning Province, PR China. The aim of this study was, therefore, to identify genotypes of SFTSV in this province.

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Background: Brucella spp. is an important zoonotic pathogen responsible for brucellosis in humans and animals. Brucella abortus A19 strain is a widespread vaccine in China.

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Porcine circovirus type 3 (PCV3) is a novel circovirus identified in sows with PDNS-like clinical signs and reproductive failure. The capsid protein (CAP) of PCV3 is expected to be an effective vaccine candidate. Here, we expressed the original capsid protein, truncated capsid protein without anterior highly repetitive arginine (ΔCAP) and their codon-optimized counterparts in E.

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TRIzol is a monophasic solution of phenol and guanidine isothiocyanate used for the extraction of RNA, DNA and proteins from tissues or cells. However, few studies have described its application to DNA extraction due to its time-consuming procedure. We present a TRIzol-modified method of extracting DNA from tissues using the TRIzol reagent and a silica column, which requires only one-third of the time required for the classic extraction procedure.

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Background: The ongoing new coronavirus pneumonia (Corona Virus Disease 2019, COVID-19) outbreak is spreading in China, but it has not yet reached its peak. Five million people emigrated from Wuhan before lockdown, potentially representing a source of virus infection. Determining case distribution and its correlation with population emigration from Wuhan in the early stage of the epidemic is of great importance for early warning and for the prevention of future outbreaks.

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Article Synopsis
  • Glaesserella parasuis is a significant pathogen in pigs, causing high illness and death rates among naive populations, making quick detection essential for managing outbreaks.
  • The newly developed RPA-LF-GPS method can accurately detect G. parasuis at a low level of 100 CFU and is just as effective using boiled synovial fluid samples as it is with traditional DNA extraction methods.
  • This point-of-care testing method completes the testing process in just one hour and shows comparable sensitivity to PCR testing, making it a practical option for diagnosing G. parasuis infections.
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Feline herpesvirus type 1 (FHV-1) is a highly contagious pathogen of domestic cats and other members of the family Felidae. Point-of-care diagnosis of persistent infection in cats is essential for control of its spread. A recombinase polymerase amplification (RPA) assay (RPA-LFD-FHV) combined with a lateral flow dipstrip (LFD) was developed that uses human body heat for incubation.

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Objective: To evaluate Chinese medicine (CM) formula Bazheng Powder () as an alternative therapeutic option for female patients with recurrent urinary tract infection (RUTI).

Methods: A randomized double-blinded trial was performed. Eligible female patients with RUTI were recruited from one hospital and two community health centers.

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Objectives: To investigate the resistance and virulence profiles of uropathogenic Escherichia coli (UPEC) and its treatment by Chinese medicine (CM) Fuzheng Qingre Lishi Formula (, FQLF).

Methods: UPEC strains were isolated from recurrent urinary tract infections (UTIs) patients. Patient sensitivities to 17 antibiotics were tested by the disk diffusion method.

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Objective: To define the optimal conditions for preparing protein chips on aldehyde-coated slides.

Methods: The proteins were diluted in PBS containing 40% glycerol and spotted on aldehyde-coated slides. After the spots were dried for 1 hour at room temperature, the slides were stored at 4 degrees Celsius;.

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