Publications by authors named "Jinjun Xu"

Article Synopsis
  • Histomonosis is a protozoan disease that affects poultry and causes significant economic losses in China, prompting the development of an attenuated vaccine based on a less virulent strain.
  • Four experiments were conducted to test the viability of the attenuated strain, including comparing different infection routes, doses, and immunization schedules to determine the most effective vaccination strategy.
  • Results indicated that the intracloacal route was more effective than oral administration, particularly with a vaccination dose of 2 × 10 on day 14, which led to better weight gain and fewer health issues in vaccinated chickens.
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() is an intracellular parasite, and its regulation of host cell apoptosis directly affects its parasitism. Studies link -induced apoptosis to abnormal expression of mammalian STE20-like protein kinase 2 (MST2), but its precise role remains unclear. In this study, the regulatory roles in apoptosis and pathogenicity of infection were identified and .

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Objective: This study investigates the effectiveness of tibia periosteum distraction (TPD) applied to the tibial periosteum, an innovative approach grounded in Ilizarov's tension-stress theory, for the treatment of ischemic diabetic foot and vasculitic foot conditions.

Methods: A retrospective analysis was conducted on 33 patients (36 limbs) who underwent TPD between June 2019 and May 2022. The study comprised 21 males (23 limbs) and 12 females (13 limbs), aged 41 to 80 years (mean age: 63.

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Histomonas meleagridis, an anaerobic intercellular parasite, is known to infect gallinaceous birds, particularly turkeys and chickens. The resurgence of histomonosis in recent times has resulted in significant financial setbacks due to the prohibition of drugs used for disease treatment. Currently, research on about H.

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Background: Toxoplasma gondii is an obligate intracellular protozoan parasite that causes severe threats to humans and livestock. Macrophages are the cell type preferentially infected by T. gondii in vivo.

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Although oil and gas from coaly source rocks have been widely discovered worldwide, the role of oil generated from coal measures in marine-continental coaly deposits during the Carboniferous-Permian period in the Bohai Bay Basin has long been a subject of debate. The recent discovery of a condensate reservoir in the Wumaying buried hill within the Huanghua Depression of the Bohai Bay Basin offers new potential insights into this issue. In this study, we employed organic geochemical methods to explore the possibility of the Carboniferous-Permian coal deposit being a primary source of the condensate.

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Article Synopsis
  • * Results indicate a 42.3% overall infection rate, with higher rates found in non-primate mammals (50.0%) compared to birds (26.3%) and primates (31.6%).
  • * A total of 11 parasite species were identified, highlighting potential zoonotic risks, emphasizing the necessity for improved parasite management to ensure the welfare of both animals and human visitors in the zoo.
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Introduction: Apicomplexan AP2 family of proteins (ApiAP2) are transcription factors (TFs) that regulate parasite growth and development, but little is known about the ApiAP2 TFs in spp. sequence is predicted to encode a ApiAP2 protein (EnApiAP2).

Methods: The cDNAs encoding full-length and truncated EnApiAP2 protein were cloned and sequenced, respectively.

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Article Synopsis
  • The oocyst wall of Eimeria parasites is crucial for their survival and transmission, made from proteins found in wall-forming bodies (WFBs).
  • Through proteomic analysis, researchers identified over 2,900 proteins in Eimeria necatrix and highlighted 1102 as differentially expressed, suggesting key roles in oocyst wall formation.
  • Three specific proteins—EnPDI, EnTrx, and EnPGK—were confirmed to be present in the oocyst wall's outer layer, indicating their participation in structural formation and opening potential avenues for disrupting parasite transmission.
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Gastrointestinal (GI) parasites in small ruminants, especially goats and sheep, have caused significant socio-economic and public health challenges worldwide. The aim of the present study was to investigate the diversity and prevalence of GI parasites in goats and sheep in Jiangsu, Shaanxi and Hunan provinces of China, and to assess whether the age of animals, sampling season and feeding mode influence the distribution and infection of GI parasites. A total of 1,081 fecal samples collected from goats ( = 835) and sheep ( = 246) were detected by saturated saline flotation technique and nylon sifter elutriation and sieving method for eggs/oocysts, respectively.

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Article Synopsis
  • Eimeria necatrix is a significant pathogen threatening the poultry industry, characterized by its surface antigens linked to a specific GPI structure, though little is known about these proteins in this parasite.
  • Researchers amplified and cloned the sag gene from E. necatrix to produce a recombinant protein (rEnSAG), revealing insights into its structure, which is critical for understanding its role in infection.
  • The study indicated that rEnSAG can inhibit the invasion of host cells by sporozoites and may confer immune protection in chickens, suggesting its potential as a vaccine candidate against E. necatrix infections.*
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Background: Toxoplasmosis is a zoonosis with a worldwide presence that is caused by the intracellular parasite Toxoplasma gondii. Active regulation of apoptosis is an important immune mechanism by which host cells resist the growth of T. gondii or avoid excessive pathological damage induced by this parasite.

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Article Synopsis
  • Eimeria species are harmful parasites in poultry, and this study focuses on the EnOXIO1 gene from E. necatrix, which is linked to protein functions in these pests.
  • Researchers extracted RNA from the parasite's gametocytes, amplified the EnOXIO1 gene, and successfully expressed the recombinant protein in E. coli, confirming its significant antigenic properties.
  • The study demonstrated that vaccination with the rEnOXIO1 protein boosted chicken immunity, improved weight gain, decreased parasite output, and lessened tissue damage during E. necatrix infection.
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is a protozoan parasite that causes histomonosis in gallinaceous birds such as turkeys and chickens. Since the banning and restricted usage of effective drugs such as nitarsone, 80-100% morbidity and mortality occur in turkeys and 20-30% mortality in chickens. New ideas are needed to resolve the re-emergence of histomonosis in poultry.

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Eimeria necatrix is an obligate intracellular parasite that has a complex life cycle and causes significant economic losses to the poultry industry. To better understand the cellular invasion mechanism of E. necatrix and develop new measures against its infection, we conducted isobaric tags for relative and absolute quantitation (iTRAQ) proteomic analysis to investigate protein abundance across different life cycle stages, including unsporulated oocysts (UO), sporozoites (SZ) and second-generation merozoites (MZ-2).

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Background: Eimeria parasite infection occurs via ingestion of oocysts. The robust, bilayer oocyst wall is formed from the contents of wall-forming bodies (WFBs), WFB1 and WFB2, located exclusively in macrogametocytes. Eimeria necatrix gametocyte proteins 22 and 59 (EnGAM22 and EnGAM59) have been found to localize to WFBs and the oocyst wall.

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Introduction: can cause histomonosis in poultry. Due to the prohibition of effective drugs, the prevention and treatment of the disease requires new strategies. Questions about its pathogenic mechanisms and virulence factors remain puzzling.

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Accurate remote sensing of the sound velocity profile of the upper-ocean mixed layers is of major important in oceanography, especially in underwater acoustic communication. However, the existing technologies cannot realize fast and real-time detection on sound velocity profile, a cost efficiency, flexibility, and real-time remote sensing technique is still highly urgent. In this paper, we propose a novel approach based on stimulated Brillouin scattering (SBS) LiDAR for retrieving the sound velocity profile.

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Background: Histomonas meleagridis is an anaerobic, intercellular parasite, which infects gallinaceous birds such as turkeys and chickens. In recent years, the reemergence of Histomoniasis has caused serious economic losses as drugs to treat the disease have been banned. At present, H.

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Background: Eimeria coccidiosis is a significant intestinal parasitic disease, which can lead to weight loss, disease and even death of many animals. At present, there is no information about the prevalence of Eimeria among the world's endangered species of Père David's deer (Elaphurus davidianus). Therefore, the purpose of this study is to identify an unknown Eimeria genus in the Père David's deer in Dafeng Milu National Nature Reserve, China.

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The shear transfer mechanism of steel fiber reinforced concrete (SFRC) beams without stirrups is still not well understood. This is demonstrated herein by examining the accuracy of typical empirical formulas for 488 SFRC beam test records compiled from the literature. To steer clear of these cognitive limitations, this study turned to artificial intelligence (AI) models.

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() is an obligate intracellular parasitic protozoan that can cause toxoplasmosis in humans and other endotherms. can manipulate the host gene expression profile by interfering with miRNA expression, which is closely associated with the molecular mechanisms of -induced brain injury. However, it is unclear how manipulates the gene expression of central nervous system (CNS) cells through modulation of miRNA expression during acute and chronic infection.

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Background: Toxoplasma gondii is an obligate intracellular protozoan parasite that can cause a geographically widespread zoonosis. Our previous splenocyte microRNA profile analyses of pig infected with T. gondii revealed that the coordination of a large number of miRNAs regulates the host immune response during infection.

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This paper investigates the compression behavior and failure criteria of lightweight aggregate concrete (LAC) under triaxial loading. A total of 156 specimens were tested for three parameters: concrete strength, lateral confining pressure and aggregate immersion time, and their effects on the failure mode of LAC and the triaxial stress-strain relationship of LAC is studied. The research indicated that, as the lateral constraint of the specimen increases, the failure patterns change from vertical splitting failure to oblique shearing failure and then to indistinct traces of damage.

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Brillouin-based LiDAR is an alternative remote sensing technique for measuring the distribution profiles of temperature, salinity, and sound speed in the upper ocean mixed layer. Its principle is based on the dependence of Brillouin frequency shift on the temperature, salinity, and depth of ocean. Therefore, it is necessary to investigate the effect of various seawater parameters on Brillouin frequency shift for ocean remote sensing by using the Brillouin LiDAR.

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