Publications by authors named "Cheng-yi Li"

Pulmonary hypertension (PH) is a chronic progressive vascular disease characterized by abnormal pulmonary vascular resistance and pulmonary artery pressure. The major structural alteration during PH is pulmonary vascular remodelling, which is mainly caused by the imbalance between proliferation and apoptosis of pulmonary vascular cells. Previously, it was thought that apoptosis was the only type of programmed cell death (PCD).

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Background: Chronic obstructive pulmonary disease (COPD), a common respiratory disease, can be effectively treated by traditional Chinese medicine (TCM). Qingfei Huatan, a TCM formula, has been reported to effectively alleviate the clinical symptoms of COPD patients. However, there is a lack of multi-centre, randomised, double-blind, controlled clinical trials documenting the clinical efficacy and safety of this formula in the treatment of acute exacerbation of COPD (AECOPD).

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Introduction: The clinical presentations of dry eye disease (DED) and depression (DEP) often comanifest. However, the robustness and the mechanisms underlying this association were undetermined.

Objectives: To this end, we set up a three-segment study that employed multimodality results (meta-analysis, genome-wide association study [GWAS] and Mendelian randomization [MR]) to elucidate the association, common pathways and causality between DED and DEP.

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The soil pH, water content, nutrients, and microbial community composition and diversity among one-year term (E1), short-term (E4), and long-term (E10) enclosures were analyzed for understanding the response of soil bacterial and fungal communities to long-term enclosure in degraded patches of alpine meadow in the source zone of the Yellow River, through determining the soil physicochemical properties and microbial diversity using high-throughput sequencing technology. The results showed that the E1 enclosure significantly decreased soil pH, whereas long-term and short-term enclosures increased soil pH. The long-term enclosure could significantly increase soil water content and total nitrogen content, and the short-term enclosure could significantly increase available phosphorus content.

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This study proposed nitrogen addition experiments to analyze the effects of exogenous nitrogen addition on soil fungal diversity in alpine meadow. All the experiments were performed in degraded alpine meadow with two different slopes (gentle slope and steep slope) in Guoluo Prefecture of the Sanjiangyuan Region, and the sequence and analysis of ITS of soil fungi were performed using MiSeq PE250 sequencing technology. Comparative analysis was carried out with three nitrogen addition levels on soil fungal diversity in degraded grassland with different slopes, which included low nitrogen (LN, 2 g·m), middle nitrogen (MN, 5 g·m), and high nitrogen (HN, 10 g·m).

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Arsenic (As) pollution in paddy fields is a major threat to rice safety. Existing As remediation techniques are costly, require external chemical addition and degrade soil properties. Here, we report the use of plastic tubes as a recyclable tool to precisely extract As from contaminated soils.

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Article Synopsis
  • - MiSeq sequencing was used to examine bacterial compositions in various types of alpine meadows, revealing that bacterial diversity changes with altitude and meadow degradation.
  • - Dominant bacteria identified were Proteobacteria, Actinobacteriota, and Acidobacteriota, with their abundances varying based on elevation and recovery of degraded patches.
  • - Environmental factors like soil crust coverage, nitrogen, and pH significantly affected bacterial diversity, showing that altitude plays a critical role in understanding these changes alongside degradation.
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Cerebral visual impairments (CVIs) is an umbrella term that categorizes miscellaneous visual defects with parallel genetic brain disorders. While the manifestations of CVIs are diverse and ambiguous, molecular diagnostics stand out as a powerful approach for understanding pathomechanisms in CVIs. Nevertheless, the characterization of CVI disease cohorts has been fragmented and lacks integration.

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MiSeq sequencing technology was used to analyze the microbial community diversity of soil in alpine wetlands to understand the degradation processes and environmental factors in these areas. The results showed that the severity of soil degradation changed the species diversity of soil microorganisms at the level of OTUs, and grass patches contained more species than frozen-thawing patches. The soil fungi species of OTUs changed significantly.

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Background: Taiwan is a rapidly aging society. The elderly with mild cognitive impairment (MCI) have increased risk of dementia, and this is a population-based report using standard neuropsychological tests and expert consensus diagnosis to assess the MCI prevalence and its associated factors in Taiwan.

Method: The Epidemiology of Mild Cognitive Impairment study in Taiwan (EMCIT) is a community-based, prospective cohort study.

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Article Synopsis
  • The study simulates the drying process of different grades of Angelicae Sinensis Radix using the Weibull distribution to understand their low-temperature moisture regain characteristics and how drying conditions affect them.
  • It finds that lower drying temperatures lead to better simulation results, with temperature having a greater effect on moisture regain rates than the grade of the product.
  • Additionally, at 40°C, the relative moisture regain rates are higher and follow the order of first class > second class > third class, with effective diffusion coefficients also varying by grade and temperature.
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  • Angelicae sinensis Radix (ASR) is a vital medicinal herb in Chinese medicine, particularly sourced from Gansu province.
  • This study highlights how different drying methods significantly impact ASR's medicinal properties and overall quality.
  • The traditional method of shade drying has evolved to "fumigation drying" as per the Chinese Pharmacopoeia, with new drying techniques emerging to better meet processing needs.
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ATP-binding cassette transporter VcaM ( ABC multidrug resistance pump) has previously been shown to confer resistance to a variety of medically important drugs. In this study, we set to analyse its properties both in vitro in detergent-solubilised state and in vivo to differentiate its dependency on auxiliary proteins for its function. We report the first detailed kinetic parameters of purified VcaM and the rate of phosphate (Pi) production.

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Objective: To study the characteristics of inorganic elements in different organs of Hedysarum polybotrys in different growing variation, including root, rhizome, leaf, flower and fruit.

Methods: The content of 13 inorganic elements in different organs were detected by using flame atomic absorption method, and then the characteristics of inorganic elements in different organs of Hedysarum polybotrys in different growing variation were analyzed.

Results: There were abundant inorganic elements in root, rhizome, leaf, flower and fruit, the change in the contents of inorganic elements at different growing variation related to the season.

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Article Synopsis
  • The study aims to analyze the epidemic characteristics of human cutaneous anthrax in China between 2005-2012 and identify specific areas and times for targeted public health interventions.
  • The findings reveal that individuals aged 30-39 had the highest incidence rates, with cases peaking during the warmer months, and significant clusters of infections were identified near the borders of Sichuan, Gansu, and Qinghai provinces, particularly among local male shepherds.
  • The research highlights the importance of tailored public health measures, such as enhanced surveillance and education, to address the unique epidemic patterns observed in the identified high-risk areas.
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Background: Hemorrhagic fever with renal syndrome (HFRS) is a rodent-borne disease caused by many serotypes of hantaviruses. In China, HFRS has been recognized as a severe public health problem with 90% of the total reported cases in the world. This study describes the spatiotemporal dynamics of HFRS cases in China and identifies the regions, time, and populations at highest risk, which could help the planning and implementation of key preventative measures.

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The purpose of this study was to quantify the relationship between climate variation and transmission of hemorrhagic fever with renal syndrome (HFRS) in Heilongjiang Province, a highly endemic area for HFRS in China. Monthly notified HFRS cases and climatic data for 2001-2009 in Heilongjiang Province were collected. Using a seasonal autoregressive integrated moving average model, we found that relative humidity with a one-month lag (β = -0.

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Objective: The aim of the study is to examine the spatiotemporal pattern of Japanese Encephalitis (JE) in mainland China during 2002-2010. Specific objectives of the study were to quantify the temporal variation in incidence of JE cases, to determine if clustering of JE cases exists, to detect high risk spatiotemporal clusters of JE cases and to provide evidence-based preventive suggestions to relevant stakeholders.

Methods: Monthly JE cases at the county level in mainland China during 2002-2010 were obtained from the China Information System for Diseases Control and Prevention (CISDCP).

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The process of word form encoding was investigated in primed word naming and word typing with Chinese monosyllabic words. The target words shared or did not share the onset consonants with the prime words. The stimulus onset asynchrony (SOA) was 100ms or 300ms.

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During the 2009 influenza (H1N1) pandemic, some countries used quarantine for containment or mitigation. Of 152 quarantined university students we studied, risk for illness was higher for students quarantined in a room with a person with a confirmed case; we found no difference between students quarantined in double or single rooms.

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Article Synopsis
  • The study aimed to analyze the spatial distribution of malaria epidemics in Hainan province and examine how environmental factors affect these outbreaks while also creating a predictive model for malaria incidences.
  • Data on malaria rates and environmental factors were gathered across 19 counties in Hainan from May to October 2000, and various correlations were calculated using statistical software.
  • Results indicated that higher malaria incidence correlated positively with elevation and land covered by forests and grasslands, but negatively with urban areas and land surface temperatures; a predictive model was developed using negative binomial regression analysis.
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Objective: To analyze the spatial distribution of highly pathogenic avian influenza (HPAI) and to explore environmental factors associated with HPAI using geographic information system (GIS) techniques in Mainland China.

Methods: Databases were set up using the information of HPAI during epidemics in 2004, and linked to digital maps at provincial and county administrative layers in the country through the ArcGIS 8.3 software.

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Objective: To analyze the association between types of epidemic areas and proportion of main animal hosts of hemorrhagic fever with renal syndrome (HFRS) in China.

Methods: Data on serotype of HFRS patients from 122 regions and species as well as number of animal hosts from 41 national surveillance sites were collected and managed. The map of the types of epidemic areas from 1991-1999 in China was produced using inverse distance weighted technique in the ArcGIS 8.

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