Publications by authors named "Yan-Nan Wang"

This paper presents an optical fiber hollow malposition structure (HMS) elaborated with cellular-like N-CQDs/MgZnO for detecting ammonia (NH) at room temperature. The gas detection was realized by combining the HMS to excite the surface evanescent field on the outer surface of the hollow core fiber (HCF) and the surface-coated cellular-like N-CQDs/MgZnO material for improving sensitivity. Experimental results demonstrate that the sensor coated with N-CQDs/MgZnO exhibits the highest sensitivity, reaching 8.

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Background: Substantial observational evidence suggests an association between neuropsychiatric conditions and venous thromboembolism (VTE). However, the causal relationship between these two conditions requires further investigation. Therefore, we used a two-sample Mendelian randomization (MR) approach to assess the bidirectional causal effects between four neuropsychiatric conditions and VTE, deep vein thrombosis, and pulmonary embolism (PE).

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Aging is accompanied by deterioration in physical condition, and creates high risks of diseases. Stem cell therapy exhibited promising potential in delaying aging. However, the unelucidated therapeutic mechanism limits future clinical application.

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  • - The study analyzed growth and nutrient accumulation in two-year-old Korean pine seedlings in two types of forests on Changbai Mountain: a primary broadleaved forest and a secondary poplar birch forest.
  • - Measurements included seasonal changes in photosynthetically active radiation (PAR), biomass, nonstructural carbohydrates (NSC), nitrogen (N), and phosphorus (P), revealing a double-peak pattern in PAR throughout the year.
  • - Results showed that light conditions were better in spring and autumn, impacting seedling growth; higher nutrient levels and biomass were observed in the secondary forest during these seasons, indicating that light availability is crucial for nutrient accumulation and growth.
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tRNA modifications at the anti-codon loop are critical for accurate decoding. FTSJ1 was hypothesized to be a human tRNA 2'-O-methyltransferase. tRNA (GAA) from intellectual disability patients with mutations in ftsj1 lacks 2'-O-methylation at C32 and G34 (Cm32 and Gm34).

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  • The review discusses literature from 2017 focusing on improving biogas production and fermentation efficiency through anaerobic processes involving organic waste.
  • It highlights new methodologies and technologies for digestion, emphasizing innovative approaches in biogas production.
  • The review is organized into sections covering pretreatment, types of organic waste and co-digestion, multiple-stage processes, and advancements in process methodology and technology.
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  • The literature review from 2015 explores anaerobic processes, emphasizing various aspects of organic waste treatment.
  • It covers topics like pretreatment methods for organic waste and the advantages of multiple-stage co-digestion.
  • Additionally, the review examines different methodologies and technologies used in these anaerobic processes to optimize efficiency and effectiveness.
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  • - The study analyzed chlorophyll-a, an important water quality indicator, using data from Lake Taihu and Lake Dongting to classify three distinct water types based on their remote sensing reflectance spectra via an automatic clustering algorithm.
  • - A specific algorithm was developed to estimate chlorophyll-a concentrations for each water type using GOCI satellite band measurements, leading to improved accuracy in estimating these concentrations (mean relative error decreased significantly).
  • - Results from May 13, 2013, indicated notable diurnal variations in chlorophyll-a levels in Lake Taihu, with higher concentrations in specific bays and a significant reduction observed in the southwestern area after 10:00 AM.
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An aerobic, Gram-staining negative, non-motile, and rod-shaped bacterial strain, SS011A0-7#2-2(T), was isolated from the sediment of South China Sea with the depth of 1,500 m. Optimum growth occurred at pH 8.0, 30 °C, and 6 % (w/v) NaCl.

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Blocking TLR4/peroxiredoxin (Prx6) signaling is proposed to be a novel therapeutic strategy for ischemic stroke because extracellular Prx6 released from ischemic cells may act as an endogenous ligand for TLR4 and initiate destructive immune responses in ischemic brain. Our previous studies showed that ligustilide (LIG) exerted antineuroinflammatory and neuroprotective effects against ischemic insult, but the underlying mechanisms remain unclear. This study investigated whether the TLR4/Prx6 pathway is involved in the protective effect of LIG against postischemic neuroinflammation and brain injury induced by transient middle cerebral artery occlusion (MCAO) in rats.

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Increasing scientific evidence suggests that ribonucleotide reductase M1 (RRM1) may be a powerful predictor of survival in patients with pancreatic cancer treated with adjuvant gemcitabine-based chemotherapy after operative resection, but many existing studies have yielded inconclusive results. This meta-analysis aimed to assess the prognostic role of RRM1 in predicting survival in patients with pancreatic cancer treated with gemcitabine. An extensive literature search for relevant studies was conducted on PubMed, Embase, Web of Science, Cochrane Library, and CBM databases from their inception through May 1st, 2013.

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We investigated the use of ionic liquid (IL) 1-allyl-3-methylimidazolium chloride (AMIMCl) for extracting cellulose from Zoysia japonica by using Fourier transform infrared spectroscopy, nuclear magnetic resonance, scanning electron microscopy and thermogravimetric analysis to analyze the IL and its effects on cellulose extraction. After water pretreatment at 121 °C for several minutes, cellulose extraction rate was 71% under optimized conditions, and the yield of cellulose was >99% by AMIMCl. The effectiveness of AMIMCl as an extraction agent can be attributed to the prevalence of intra- and inter-molecular hydrogen bonding in cellulose.

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Neuroinflammatory responses induced by accumulation and aggregation of beta-amyloid (Abeta) peptide are mainly involved in Alzheimer's disease (AD) pathogenesis. Z-ligustilide (LIG), a novel neuroprotectant against ischemic stroke, was reported to have significant anti-inflammatory effects via inhibition of TNF-alpha production and bioactivity. The present study investigated the effect of LIG on AD-like cognitive impairment and neuropathological and neuroinflammatory changes induced by bilateral intracerebroventricular injections of Abeta(25-35) at a dose of 50 nmol/rat.

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  • The study aimed to explore how different extracts from Curcuma long can stabilize curcumin and prevent its degradation.
  • Researchers used various solvents (like alcohol and acetone) to add to pure curcumin and analyzed its stability using high performance liquid chromatography (HPLC).
  • The findings showed that alcohol extracts, especially 80% alcohol, significantly improved the stability of curcumin compared to its pure form.
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