Publications by authors named "Di Feng"
Citron (Citrus medica) is a representative aromatic species of the Citrus genus in the Rutaceae family. To determine the volatile profiles and genetic variation of citron, we collected 218 citron accessions within China, including 130 from Yunnan and 88 from Tibet. We identified a total of 80 volatile compounds from their pericarps.
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- * The study found that using vermicompost with bio-stimulants, particularly moringa leaf extract (MLE), greatly enhanced wheat growth, yield, and nutrient absorption, outperforming other organic options.
- * The combination of vermicompost and MLE increased plant height, leaf area, and photosynthesis, leading to significant rises in both straw (64%) and grain (27%) yields compared to control groups, highlighting a promising sustainable approach for farmers.
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- * Previous research indicated a connection between elevated fructose and PCOS, but the specific relationship between uric acid and fructose among these women was unclear prior to this study.
- * Conducted with 774 participants at a hospital in China, the study found that elevated fructose is an independent risk factor for high uric acid levels, employing various methods for data collection and analysis.
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- Ethylene treatment enhances orange coloration in Satsuma mandarin fruit by activating a transcription factor called CitZAT4, which promotes carotenoid production.
- CitZAT4 binds to the CitPSY promoter, stimulating the creation of orange carotenoids, while also inhibiting the production of yellow carotenoids like lutein.
- Additionally, an ethylene response factor, CitERF061, boosts CitZAT4 expression, forming a regulatory pathway that connects ethylene signaling to carotenoid metabolism and potentially improving citrus crop quality and efficiency.
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- * A series of new isoxazoline compounds with acylhydrazine were created and tested for insecticidal activity, with one compound showing superior effectiveness compared to commercial options.
- * Research indicated that the acylhydrazine's presence enhances biological activity, and the compound potentially interacts with the GABA receptor in the target insects, suggesting it could be a strong candidate for agricultural pest control.
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- Drought stress (DS) significantly impacts plant health and agriculture, leading to reduced crop yields and limiting growth in certain regions.
- To combat DS, researchers are exploring various exogenous substances (ESs) that can help plants tolerate this stress, focusing on their specific effects and mechanisms.
- The paper categorizes these ESs based on their roles in enhancing osmotic adjustment, improving antioxidant pathways, promoting photosynthesis, boosting plant nutrition, and regulating phytohormones, while also discussing strategies for effective application in agriculture to address challenges from droughts.
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- Carotenoid biosynthesis in non-climacteric fruits is influenced by abscisic acid (ABA) signaling, but the exact mechanisms are not well understood.
- Researchers identified two key regulators, CsERF110 and CsERF53, that control carotenoid gene expression, promoting accumulation during fruit ripening.
- The study reveals a positive feedback loop between ABA signaling and carotenoid metabolism through the CsERF110-CsERF53 module, offering insights for enhancing the quality of citrus and other carotenoid-rich crops using genetic approaches.
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- The heat-aging process enhances the performance of Al alloys, aligning with the need for shorter processing times, making it significant in practical applications.
- The study investigated how different heating rates and termination temperatures affect the properties of a specific AlZnMgCu alloy through various tests like hardness and tensile strength.
- Results showed that increasing termination temperature boosts hardness to a peak before it declines, while higher heating rates improve peak hardness and reduce overall heating time from 40 hours to just 8 hours, optimizing the aging process for this alloy.
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- - Cancer exhibits molecular heterogeneity, meaning similar patients can have unique genetic profiles and different clinical outcomes, making gene expression networks a more effective tool for understanding these differences than simpler methods.
- - Gene interactions can be classified as direct or indirect, with indirect connections often resulting from shared regulators like transcription factors, which can complicate the analysis due to numerous influencing factors and weak signals.
- - To improve network analysis, a two-step procedure is proposed that uses prior research information, even if imperfect, demonstrating better results in a breast cancer study and highlighting significant clinical variations among identified patient subgroups.
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- Postoperative cough frequently occurs after general anesthesia during bronchoscopy, prompting this study to evaluate the effects of lidocaine instillation in the piriform recess on cough incidence post-extubation.* -
- Eighty-eight patients were split into two groups: one receiving 2mL of 2% lidocaine and the other receiving 2mL of normal saline. The lidocaine group showed a significantly lower incidence of cough immediately after extubation, along with improved throat scores and higher satisfaction ratings.* -
- The study concluded that using lidocaine prior to bronchoscopy effectively reduces early cough intensity and sore throat, though no differences were noted in these symptoms or overall recovery quality at six hours post-extubation
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- Emerging immunotherapies like immune checkpoint blockade (ICB) and CAR-T therapy have transformed cancer treatment, improving survival, but many patients either don't respond or relapse.* -
- The complexity of cancer cells often involves multiple genes that suppress immune response; thus, targeting individual genes isn't always effective, leading researchers to explore genes called paralogs that may work together.* -
- This study developed a computational model to identify paralog pairs that could boost the effectiveness of immunotherapy, and experimental tests confirmed these pairs' potential in enhancing T cell responses against tumors.*
Multi-omics reveals the molecular mechanism of muscle quality changes in common carp (Cyprinus carpio) under two aquaculture systems.
Comp Biochem Physiol Part D Genomics Proteomics
December 2024
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- The study investigated the link between body mass index (BMI) and postoperative nausea and vomiting (PONV) in patients undergoing thoracic surgery for lung cancer, focusing on the first 48 hours post-surgery.
- A total of 194 patients were analyzed, revealing that those with a high BMI (≥ 25 kg/m²) experienced significantly lower rates of PONV compared to those with a normal BMI (18.5-25 kg/m²).
- Additionally, the research found higher levels of certain inflammatory factors in normal BMI patients, suggesting a need for greater PONV prevention in this group after surgery.
Unlabelled: KRAS inhibitors have demonstrated exciting preclinical and clinical responses, although resistance occurs rapidly. Here, we investigate the effects of KRAS-targeting therapies on the tumor microenvironment using a library of KrasG12D, p53-mutant, murine pancreatic ductal adenocarcinoma-derived cell lines (KPCY) to leverage immune-oncology combination strategies for long-term tumor efficacy. Our findings show that SOS1 and MEK inhibitors (SOS1i+MEKi) suppressed tumor growth in syngeneic models and increased intratumoral CD8+ T cells without durable responses.
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- * The new method shows impressive precision with a repeatability standard deviation of less than 3 ‰ and an accuracy standard deviation of 2.6 ‰ compared to an established technique (SNIF-NMR).
- * The δD values of acetic acid in synthetic and vinegar samples were significantly different, indicating unique isotopic characteristics, making this method advantageous for measuring δD efficiently and effectively, even in complex mixtures.
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- The study compares the nutritional quality and biochemical indices of grass carp raised in traditional pond intercropping (TPI) versus in-pond raceway systems (IPRS).
- Results showed TPI had better water-holding capacity, while IPRS produced fish with higher crude lipids and improved muscle texture, such as springiness.
- Differences were noted in fatty acid and amino acid profiles: TPI had more polyunsaturated fatty acids, while IPRS had higher levels of saturated fatty acids and better overall health indicators in serum analysis.
To return vegetable remnants to soil in situ and understand parameters that determine their decomposition efficiency, the tomato remnant length, soil moisture, soil temperature and dosage of a microbial decomposer (MD) have been evaluated through a laboratory experiment using a nylon mesh bag in this study. The results showed that the residual remnant weight, and total carbon content increased 28.49 % and 32.
View Article and Find Full Text PDFA rapid method for the determination of stable hydrogen isotope ratios of acetic acid in vinegar.
Rapid Commun Mass Spectrom
April 2024
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- Vinegar is a common condiment that can contain either fermented or synthetic acetic acid, leading to authenticity issues.
- A new method was developed to measure and differentiate the acetic acid sources in vinegar using gas chromatography combined with isotope ratio mass spectrometry.
- The results showed a clear distinction between the isotopic signatures of acetic acid from natural fermentation and chemical sources, with plans for further improvements to eliminate water interference in future tests.
Carotenoids in plant foods provide health benefits by functioning as provitamin A. One of the vital provitamin A carotenoids, β-cryptoxanthin, is typically plentiful in citrus fruit. However, little is known about the genetic basis of β-cryptoxanthin accumulation in citrus.
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- - The study examines how microplastics (MPs) and cadmium (Cd) in paddy soil affect greenhouse gas (GHG) emissions, revealing that polylactic acid (PLA) MPs significantly increase methane (CH4) and nitrous oxide (NO) emissions, raising global warming potential (GWP) in waterlogged conditions.
- - When both MPs and Cd are present, GWP is lower than in soils treated only with MPs, suggesting that Cd may reduce NO emissions despite its negative effects, while also reducing Cd's bioavailability in contaminated soils.
- - The research highlights the complex interactions between MPs and Cd on microbial populations and GHG emissions, providing valuable insights for understanding their ecological impacts in paddy
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- * The review highlights various promising techniques for degrading M/NPs, including photo-based methods, Fenton reactions, electrochemical oxidation, and innovative micro/nanomotors.
- * It also examines the key factors influencing degradation efficiency and discusses current challenges and future directions for improving chemical methods to manage M/NPs contamination.
To amend physical properties of coastal saline soil for rice production, six biochar treatments (0, 0.5, 1, 2, 4 and 6 kg biochar per m soil) were set up as CK, T1, T2, T3, T4 and T5, respectively and their effect on the biochemical properties of coastal saline soil and rice growth characteristics were evaluated in a barrel planting experiment. The results showed that compared with CK (with no biochar added), the soil EC of T1 and T2-T5 was reduced by 11.
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- This study explores how ectonucleotide pyrophosphatase/phosphodiesterase 1 (ENPP1) affects vascular calcification in rats, focusing on its ability to regulate the calcification process.
- By inducing vascular smooth muscle cell (VSMC) calcification and then overexpressing ENPP1, researchers observed a significant reduction in calcium and phosphorus levels in the aorta.
- Results suggest that ENPP1 enhances pyrophosphate (PPi) levels and prevents VSMC transformation that leads to calcification, highlighting its potential as a therapeutic target for vascular calcification disorders.*
Plant flooding/waterlogging stress (FWS) can be a threat to food security worldwide due to climate change. To mitigate its potential devastation, numerous exogenous chemicals (ECs) have been used to demonstrate their effectiveness on alleviating FWS for the last 20 years. This review has summarized the most recent findings on use of various ECs as either nutrients or regulatory substances on crop plants under FWS and their roles involved in improving root respiration of seedlings, optimizing nutritional status, synthesizing osmotic regulators, enhancing the activity of antioxidant enzymes, adjusting phytohormone levels, maintaining photosynthetic systems, and activating flood-tolerance related gene expressions.
View Article and Find Full Text PDFCT target scanning in the diagnosis of solid pseudopapillary tumor of the pancreas.
BMC Med Imaging
December 2023
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- The study investigates the effectiveness of using computed tomography (CT) iterative reconstruction techniques combined with target scanning for diagnosing solid pseudopapillary tumors of the pancreas (SPTP).
- Analyzing data from 27 patients, the research found that SPTP is more prevalent in young to middle-aged females, usually presenting as cystic-solid tumors with specific CT imaging features.
- Results indicate that this imaging approach enhances tumor visibility and helps in accurately diagnosing SPTP, as it clarifies tumor structure and growth patterns without significant differences between genders.