Spectrochim Acta A Mol Biomol Spectrosc
February 2025
The rapid and non-destructive quantification of catechins in fermented black tea is crucial for evaluating the quality of black tea. The combination of hyperspectral imaging and chemometrics has been applied for quantitative detection, but its performance is usually constrained by the limited dataset size. Targeted at the challenge of insufficient samples in regression analysis of catechins, this study proposes an improved deep convolutional generative adversarial network with labeling module, named as DCGAN-L for hyperspectral data augmentation.
View Article and Find Full Text PDFIntroduction: is a traditional Chinese herb that has gained much attention for its production of Huperzine A (HupA). HupA has shown promise on treating Alzheimer's disease (AD). However, the biosynthetic pathway and molecular mechanism of HupA in are still not well understood.
View Article and Find Full Text PDFNanoplastics (NPs) presence in agricultural soils can affect plant growth and impact the quality of agricultural products. To investigate the effect of polyamide (PA) NPs and polyethylene (PE) NPs on carbohydrate metabolism and soil microorganisms during rice growth, rice seedlings were exposed to soil containing 2 g/kg of 100 nm PA or 100 nm PE powder for 33 d. The results revealed that 100 nm PE reduced shoot length and dry weight of rice by 4.
View Article and Find Full Text PDFBackground: Early diagnosis of breast cancer has always been a difficult clinical challenge. We developed a deep-learning model EDL-BC to discriminate early breast cancer with ultrasound (US) benign findings. This study aimed to investigate how the EDL-BC model could help radiologists improve the detection rate of early breast cancer while reducing misdiagnosis.
View Article and Find Full Text PDFAs a traditional Chinese medicine, Rhododendron molle G. Don has a long history of treating rheumatoid arthritis. In this study, RAW 264.
View Article and Find Full Text PDFAim Of The Study: The aim of this study was to test the anti-rheumatic arthritis effects of Rhododendron molle G. Don leaf extract in arthritis rats and inflammatory RAW 264.7 cells.
View Article and Find Full Text PDFIntroduction: The aim of this study was to evaluate the therapeutic effect of a new drainage procedure for treating subretinal hemorrhage (SRH) in hemorrhagic retinal detachment (RD) in patients with polypoidal choroidal vasculopathy (PCV).
Methods: Forty-three eyes with hemorrhagic RD attributable to PCV underwent vitrectomy. External drainage via sclerotomy was performed in 25 eyes and internal drainage via retinotomy was performed in 18 eyes, respectively.
Rice (Oryza sativa L.) grain hull color is an easily observable trait and regarded as a crucial morphological marker in rice breeding. Here, a purple gradient grain hull mutant (pg) was found from natural mutations of a straw-white grain hull rice variety IARI 6184B (Orzya sativa L.
View Article and Find Full Text PDFMemory nonlinear error greatly reduces the performance of analog-to-digital converters (ADCs), and this effect is more serious in a time-interleaved analog-to-digital converter (TIADC) system. In this study, the sinusoidal wave fitting method was adopted and a joint error estimation method was proposed to address the memory nonlinear mismatch problem of the current TIADC system. This method divides the nonlinear error estimation method into two steps: the nonlinear mismatch error is coarsely estimated offline using the least squares (LS) method, and then accurately estimated online using the recursive least squares (RLS) method.
View Article and Find Full Text PDFObjective: The purpose of this single-center, randomized, open, two-period, two-sequence crossover, single-dose administration, bioequivalence research was to evaluate the bioequivalence and safety of the generic formulations of metformin hydrochloride sustained-release (MH-SR) 500 mg tablets (test preparation [T]: Yuantang SR) and the original formulation (reference preparation [R]: Glucophage XR) in 36 healthy Chinese volunteers under postprandial conditions.
Methods: Subjects received 500 mg T/R in each period, with a 7-day washout period. Venous blood samples of 4 mL each were collected from each subject 19 times spanning predose (0 h) to 36 h postdose.
Phosphorus (P) deficiency tolerance in rice is a complex character controlled by polygenes. Through proteomics analysis, we could find more low P tolerance related proteins in unique P-deficiency tolerance germplasm Dongxiang wild rice (, DXWR), which will provide the basis for the research of its regulation mechanism. In this study, a proteomic approach as well as joint analysis with transcriptome data were conducted to identify potential unique low P response genes in DXWR during seedlings.
View Article and Find Full Text PDFDongxiang common wild rice is a precious rice germplasm resource for the study and improvement of salt tolerance in rice.The metabolism profile of Dongxiang wild rice (DXWR) under salinity was determined by high performance liquid chromatography-mass spectrometry (HPLC-MS) to find differential metabolites and screen potential biomarkers for salt-tolerant rice varieties. A global untargeted metabolism analysis showed 4,878 metabolites accumulated in seedlings of Dongxiang wild rice.
View Article and Find Full Text PDFObjectives: To assess the bioequivalence and safety of generic metformin hydrochloride (test preparation) and glucophage (reference preparation) in healthy Chinese subjects.
Materials And Methods: A bioequivalence and safety assessment of two formulations of metformin (850 mg) using a randomized, open, two-period, two cross-over, single-dose, fed trial in 36 healthy Chinese adult subjects was performed at our center from March 22, 2018, to April 9, 2018. Bioequivalence was determined as two-sided 90% confidence intervals (CI) of the test-to-reference ratio of area under the curve (AUC) and peak concentration (C) for each constituent within 80.
is a traditional herb and endangered Chinese medicinal material, which has attracted much attention due to its production of Huperzine A (HupA). In vitro propagation of is considered a new way to relieve the resource pressure of . In this study, three different genotypic wild were used for in vitro propagation.
View Article and Find Full Text PDFG. Don is one example of traditional Chinese medicine with important medicinal value. In this study, the effects of methanol extract of leaves (RLE) on colorectal cancer HT-29 cells and its potential molecular mechanism were investigated.
View Article and Find Full Text PDFis a rare and traditional medicinal plant with high pharmacological and nutritional value. The self-incompatibility mechanism of reproductive isolation was formed in the long-term evolution process, but intraspecific hybridization of different germplasm resources leads to a large gap in the yield, quality, and medicinal value of . To investigate the biological mechanism of self-incompatibility in , cytological observation and the transcriptome analysis was carried out on the samples of self-pollination and cross-pollination in .
View Article and Find Full Text PDFIn this study, label-free quantitative proteomics were used to study cold stress-related proteins in Dongxiang wild rice (Oryza rufipogon Griff., DWR) and cold sensitive cultivated rice 'Xieqingzao B'(Oryza sativa L. ssp.
View Article and Find Full Text PDFRed pericarp associates with seed dormancy or preharvest sprouting (PHS) tolerance in crops. To identify this association's molecular mechanism, a PHS mutant () was characterized in rice and crossed with Kasalath, a red pericarp cultivar with () genotype. Among the dehulled seeds of F progenies, seeds performed a lower PHS rate than seeds and showed shallower pigmentation than seeds.
View Article and Find Full Text PDFKimura et Migo, a rare and traditional medicinal plant, contains many nutrients such as polysaccharides, alkaloids, amino acids and so on. Different growth environment and intraspecific hybridization of different germplasm resources lead to large differences in the yield, quality and medicinal value of . Here, the volatile compounds of from four producing regions (Zhejiang, Fujian, Yunnan and Jiangxi) were analyzed to provide a certain reference value for the selection of a specific medicinal component in breeding.
View Article and Find Full Text PDFRhododendron molle G.Don is a well-known traditional medicine which has been used to treat rheumatic inflammation. In this study, an inflammatory model of lipopolysaccharide (LPS)-stimulated RAW264.
View Article and Find Full Text PDFFunctionalization of synthetic suede materials with excellent superhydrophobicity can expand their application ranges. Superhydrophobic synthetic suede was obtained by coating with polydimethylsiloxane (PDMS) and octadecyltrichlorosilane (OTS). Utilizing the synthetic suede effect of the fibrous rough structures in combination with the low surface energy micro-nano rough structure on fibers resulting from PDMS and OTS, the surface was easily turned superhydrophobic with self-cleaning properties.
View Article and Find Full Text PDFBACKGROUND Alzheimer disease (AD) is a significant health issue for the elderly, and there are at present no clinically effective anti-AD agents. Prevention of Aß-induced neurotoxicity is proposed as a possible modality for treatment of AD. miR-33 has been proven to promote Aß secretion and impair Aß clearance in neural cells.
View Article and Find Full Text PDFPurpose: To compare the characteristics of choroidal transmission in punctate inner choroidopathy (PIC) with or without choroidal neovascularization (CNV) and myopic CNV (mCNV) using spectral domain optical coherence tomography (SD-OCT).
Methods: This retrospective observational case series includes 22 consecutive myopic patients (22 eyes) recruited from April 2016 until April 2018 who complained of acute blurring of vision and showed evidence of hyper-reflective material on SD-OCT imaging. Each patient underwent a comprehensive eye examination and imaging with fundus fluorescein angiography (FFA), SD-OCT, and SD-OCT angiography (SD-OCTA).
Chronic Kidney Disease (CKD) is characterized by the gradual loss of renal mass and functions. It has become a global health problem, with hundreds of millions of people being affected. Both its incidence and prevalence are increasing over time.
View Article and Find Full Text PDF