Publications by authors named "Li-guang Tian"

Article Synopsis
  • Upper respiratory infections (URIs) are prevalent worldwide, making it essential for governments to understanding their impact for effective healthcare planning and resource allocation.
  • An analysis of the GBD 2021 data showed a significant decline in various URI metrics (incidence, prevalence, mortality, and disability) from 1990 to 2021, particularly affecting the elderly and young children.
  • Future projections indicate a rise in URI incidence and prevalence from 2022 to 2050, while mortality rates are expected to decline, highlighting ongoing public health challenges, especially related to factors like low birth weight.
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  • * Utilizing data from the Global Burden of Disease Study 2021, the research analyzed trends in incidence, prevalence, mortality, and disability-adjusted life years (DALYs) for various forms of HIV-related TB from 1990 to 2021.
  • * In 2021, the rates showed that HIV-DS-TB had the highest incidence and mortality rates compared to HIV-MDR-TB and HIV-XDR-TB, with significant increases in the incidence and mortality of multi-drug resistant and extensively drug-resistant forms over the study
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Background And Purpose: QiShenYiQi (QSYQ) has shown promise in the treatment of blood-brain barrier (BBB) damage following stroke. However, the identification of its bioactive components and the underlying molecular mechanisms of action remain unknown. This study aimed to investigate the active ingredients and mechanisms involved in the inhibitory effects of QSYQ on BBB damage after ischemic stroke based on network pharmacology and experimental verification.

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Background: Blastocystis hominis (Bh) is zoonotic parasitic pathogen with a high prevalent globally, causing opportunistic infections and diarrhea disease. Human immunodeficiency virus (HIV) infection disrupts the immune system by depleting CD4 T lymphocyte (CD4 T) cell counts, thereby increasing Bh infection risk among persons living with HIV (PLWH). However, the precise association between Bh infection risk and HIV-related biological markers and treatment processes remains poorly understood.

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spp., , , and sp. infections have been frequently reported as etiological agents for gastroenteritis, but also as common gut inhabitants in apparently healthy individuals.

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Background: Trichinellosis is a serious food-borne parasitic zoonosis, thus finding high quality antigens is the key to serodiagnosis of trichinosis. This article reports the characterization and sensitivity of four recombinant proteins expressed by four genes (, , , and ) from different developmental stages of for the diagnosis of trichinellosis in mice.

Methods: This study was conducted in Jilin University and National Institute of Parasitic Diseases of Chinese Center for Disease Control and Prevention in 2017-2018.

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Background: The coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has led to a significant number of mortalities worldwide. COVID-19 poses a serious threat to human life. The clinical manifestations of COVID-19 are diverse and severe and 20% of infected patients are reported to be in a critical condition.

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Background: Blastocystis is ubiquitous presence in animals and humans worldwide and has a high level genetic diversity. The aim of this study was to conduct a summary of Blastocystis prevalence, subtypes (STs) in humans and animals in China and depict their distribution.

Methods: We searched for the articles related to epidemiology of Blastocystis in humans and animals throughout China which published from January 1, 1990, to July 31, 2019 in the following databases: PubMed, China National Knowledge Infrastructure (CNKI) and Wanfang database.

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Background: Blastocystis is a widespread zoonotic protozoan of mammalian species, especially in HIV/AIDS individuals. The aim of this study was to analyze the prevalence and risk factors related with Blastocystis infection among HIV/AIDS patients in Southwest China.

Methods: The cross-sectional study was performed in 311 HIV/AIDS cases in Tengchong City, Yunnan Province from July 2016 to March 2017.

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Article Synopsis
  • The study aims to compare different methods for assessing disability-adjusted life years (DALYs) in patients with advanced schistosomiasis japonica to provide better scientific evidence for its burden.
  • In 2017, patients in Hunan Province were evaluated using three different methods: the common global burden of disease (GBD) estimation, a modified GBD method, and a quality of life assessment.
  • Results showed that the YLDs (years lived with disability) estimates from the modified GBD method and the quality of life method were significantly higher than those from the common GBD method, indicating the latter may underrepresent the condition's burden.
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  • The study investigates the prevalence and antimicrobial resistance patterns of diarrheagenic Escherichia coli (DEC) and non-typhoidal Salmonella (NTS) in diarrheal patients in southwest China, highlighting the public health impact of bacterial diarrhea.
  • A total of 1,121 diarrheal patients and 319 non-diarrheal subjects were analyzed, revealing higher rates of DEC and NTS in diarrhea cases compared to non-diarrheal cases, which signifies the pathogens' role in intestinal diseases.
  • The research demonstrated significant resistance rates to multiple antibiotics among DEC and NTS strains, emphasizing the growing problem of antibiotic resistance due to their widespread usage in developing regions.
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Article Synopsis
  • * A total of 507 inpatients were analyzed, revealing a low infection rate of 1.97%, with related factors being chronic diarrhea and drinking unboiled water.
  • * No significant differences were found between infected and non-infected patients regarding height, weight, body mass index, or age, nor in common clinical symptoms like abdominal distension or constipation.
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  • - The study aims to forecast monthly echinococcosis cases in China using the ARIMA model to aid in disease prevention and control.
  • - Two ARIMA models were developed based on different time periods (2007-2015 and 2007-2014), with the latter showing a better prediction accuracy (0.56% error compared to -13.97%).
  • - Results indicate that different time series data may require distinct ARIMA models, and ongoing adjustments to the model are necessary as more data becomes available to improve prediction accuracy.
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Objective: To understand the situation of Giardia lamblia infection in HIV-infected individuals and in kindergarden children in rural area of Anhui Province and analyze the genotype of the parasite.

Methods: HIV-infected individuals registered in an AIDS treatment facility and children in a local kindergarden were included in this study during April 24 and May 9, 2015. The feces were collected, stained by iodine solution, and examined by microscopy.

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Background: Acute diarrhea is one of the major public health problems worldwide. Most of studies on acute diarrhea have been made on infants aged below 5 years and few efforts have been made to identify the etiological agents of acute diarrhea in people over five, especially in China.

Methods: 271 diarrhea cases and 149 healthy controls over 5 years were recruited from four participating hospitals between June 2014 and July 2015.

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Article Synopsis
  • * Conducted in Kunming, the research analyzed stool samples from 1,121 diarrhea patients and 319 healthy individuals using RT-PCR to detect the presence of HuCV, finding a higher infection rate in diarrhea cases compared to controls.
  • * Results showed that NoV, especially the GII.4 strain, was the most prevalent subtype among diarrhea patients, indicating specific genotypes of NoV are associated with the disease, which could inform public health strategies in the region. *
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Objective: To observe the growth situation of Blastocystis hominis in vitro and select the optimal method for cultivation of B. hominis in different media.

Methods: Ten positive stools with B.

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Background: Acute diarrhea is a global health problem, resulting in high morbidity and mortality in children. It has been suggested that enteric pathogen co-infections play an important role in gastroenteritis, but most research efforts have only focused on a small range of species belonging to a few pathogen groups. This study aimed to assess the impact of co-infections with a broad range of enteric pathogens on children aged below five years who suffer from acute diarrhea in southwest China.

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Objective: To establish an animal model for Pneumocystis pneumonia (PCP) and to study the etiological and molecular biological technology for PCP detection.

Methods: SD and Wistar rats were divided into experimental and control groups randomly. The animals in the experimental group were immunosuppressed by subcutaneous injection with dexamethasone 2 mg per time per rat, twice a week, while those in the control group underwent the same way of injection with physiological saline simultaneously.

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Although co-infection of tuberculosis (TB) and intestinal parasites, including protozoa and helminths, in humans has been widely studied globally, very little of this phenomenon is known in China. Therefore, a cross-sectional study was conducted in a rural county of China to investigate such co-infections. Patients with pulmonary TB (PTB) undergoing anti-Mycobacterium tuberculosis (anti-MTB) treatment were surveyed by questionnaires, and their feces and blood specimens were collected for detection of intestinal protozoa and helminths, routine blood examination and HIV detection.

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Objective: To understand the epidemiological characteristics of imported malaria in Luoyang City, so as to provide the evidence for malaria prevention and control in this city.

Methods: The Epidemic situation data from network reports, as well as the case survey and the epidemiological investigation data of imported malaria were collected and analyzed in Luoyang City from 2010 to 2013.

Results: A total of 98 imported malaria cases were reported in Luoyang City from 2010 to 2013, including 35 cases of vivax malaria, 57 cases of falciparum malaria, 4 cases of ovale malaria and 2 cases of quartan malaria.

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Objective: To establish A1E3 and B1C4 monoclonal antibody-based ELISA for detecting circulating antigen of Schistosoma japonicum and explore its application value in the field.

Methods: The characteristics of A1E3 and B1C4 monoclonal antibodies were analyzed by SDS-PAGE and Western blotting. The SEA-based ELISA was used to evaluate the titers of A1E3 and B1C4.

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Background: Schistosomiasis remains a serious public health problem in affected countries, and routine, highly sensitive and cost-effective diagnostic methods are lacking. We evaluated two immunodiagnostic techniques for the detection of Schistosoma japonicum infections: circulating antibody and circulating antigen assays.

Methods: A total of 1864 individuals (between 6 and 72 years old) residing in five administrative villages in Hubei province were screened by serum examination with an indirect hemagglutination assay (IHA).

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