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1.
Can J Psychiatry ; : 7067437241248051, 2024 Jun 11.
Article in English | MEDLINE | ID: mdl-38863243

ABSTRACT

OBJECTIVE: This study represents the inaugural attempt to systematically review and analyse the efficacy of bright light therapy on depression among women experiencing major depressive disorder or depressive symptoms during the perinatal period, encompassing its efficacy on depression scores, remission rates, and response rates. METHODS: We searched 10 databases for randomized controlled trials examining bright light therapy's efficacy on perinatal depression up to January 2024. Data extraction was performed independently by 2 investigators. The Cochrane Handbook guidelines appraised the study quality, and the Grading of Recommendations, Assessment, Development, and Evaluations (GRADE) approach assessed evidence certainty. RESULTS: We incorporated 6 studies, encompassing 151 participants. When contrasted with dim light therapy, bright light therapy did not significantly alter depression scores (standard mean difference = -0.29, 95% confidence interval [CI], -0.62 to 0.04, P = 0.08, I² = 34%) or response rates (risk ratio [RR] = 1.56, 95% CI, 0.98 to 2.49, P = 0.06, I² = 0%) in women experiencing perinatal depression. Conversely, bright light therapy was associated with a substantial increase in remission rates (RR = 2.63, 95% CI, 1.29 to 5.38, P = 0.008, I² = 2%). CONCLUSION: Bright light therapy did not show efficacy in treating perinatal depression in terms of depression scores and response rates. However, regarding the remission rate, bright light did show efficacy compared to control conditions. Due to the limited sample size in the included studies, type II err or may occur. To obtain more conclusive evidence, future studies must employ larger sample sizes.

3.
PLoS One ; 19(6): e0305133, 2024.
Article in English | MEDLINE | ID: mdl-38935623

ABSTRACT

Aluminum (Al) toxicity is an important factor restricting the normal growth of plants in acidic soil. Rhododendron (Ericaceae) can grow relatively well in acidic soil. To uncover the adaptive mechanisms of photosynthesis under Al stress, the influence of Al stress on the photosynthetic activities of Al-sensitive (Baijinpao) and Al-resistant (Kangnaixin) rhododendron cultivars was examined by measuring gas exchange, chlorophyll fluorescence, and the modulated reflection of light at 820 nm. Under Al stress conditions, the net photosynthetic rate and stomatal conductance of the rhododendron leaves decreased, whereas the intercellular CO2 concentration increased. The Al stress treatment damaged the oxygen-evolving complex of the rhododendron seedlings, while also inhibiting electron transport on the photosystem II (PSII) donor side. In addition, the exposure to Al stress restricted the oxidation of plastocyanin (PC) and the photosystem I (PSI) reaction center (P700) and led to the re-reduction of PC+ and P700+. The comparison with Kangnaixin revealed an increase in the PSII connectivity in Baijinpao. Additionally, the donor-side electron transport efficiency was more inhibited and the overall activity of PSII, PSI, and the intersystem electron transport chain decreased more extensively in Baijinpao than in Kangnaixin. On the basis of the study findings, we concluded that Al stress adversely affects photosynthesis in rhododendron seedlings by significantly decreasing the activity of PSII and PSI. Under Al stress, Kangnaixin showed stronger tolerance compared with Baijinpao.


Subject(s)
Aluminum , Chlorophyll , Photosynthesis , Photosystem II Protein Complex , Rhododendron , Rhododendron/metabolism , Aluminum/toxicity , Chlorophyll/metabolism , Photosynthesis/drug effects , Fluorescence , Photosystem II Protein Complex/metabolism , Stress, Physiological/drug effects , Plant Leaves/metabolism , Plant Leaves/drug effects , Electron Transport/drug effects , Light , Photosystem I Protein Complex/metabolism
4.
Food Funct ; 15(13): 7174-7188, 2024 Jul 01.
Article in English | MEDLINE | ID: mdl-38895817

ABSTRACT

Background and aims: There is limited and conflicting evidence about the association of erythrocyte fatty acids with coronary artery disease (CAD), particularly in China where the CAD rates are high. Our study aimed to explore the association between erythrocyte fatty acid composition and CAD risk in Chinese adults. Methods: Erythrocyte fatty acids of 314 CAD patients and 314 matched controls were measured by gas chromatography. Multivariable conditional logistic regression and restricted cubic spline models were used to explore the odds ratio with 95% confidence interval (OR, 95% CI) and potential association between erythrocyte fatty acids and CAD risk. Principal component analysis (PCA) was used to analyze further the potential role of various erythrocyte fatty acid patterns in relation to CAD risk. Results: Significant inverse associations were observed between high levels of erythrocyte total n-3 polyunsaturated fatty acids (n-3 PUFA) [ORT3-T1 = 0.18 (0.12, 0.28)], monounsaturated fatty acids (MUFA) [ORT3-T1 = 0.21 (0.13, 0.32)], and the risk of CAD. Conversely, levels of saturated fatty acids (SFAs) and n-6 polyunsaturated fatty acids (n-6 PUFAs) were positively associated with CAD risk [ORT3-T1 = 3.33 (2.18, 5.13), ORT3-T1 = 1.61 (1.06, 2.43)]. No significant association was observed between CAD risk and total trans fatty acids. Additionally, the PCA identifies four new fatty acid patterns (FAPs). The risk of CAD was significantly positively associated with FAP1 and FAP2, while being negatively correlated with FAP3 and FAP4. Conclusion: The different types of erythrocyte fatty acids may significantly alter susceptibility to CAD. Elevated levels of n-3-PUFAs and MUFAs are considered as protective biomarkers against CAD, while SFAs and n-6 PUFAs may be associated with higher CAD risk in Chinese adults. The risk of CAD was positively associated with FAP1 and FAP2, and negatively associated with FAP3 and FAP4. Combinations of erythrocyte fatty acids may be more important markers of CAD development than individual fatty acids or their subgroups.


Subject(s)
Coronary Artery Disease , Erythrocytes , Fatty Acids , Humans , Coronary Artery Disease/blood , Coronary Artery Disease/epidemiology , Coronary Artery Disease/metabolism , Male , Erythrocytes/metabolism , Erythrocytes/chemistry , Female , Middle Aged , China/epidemiology , Case-Control Studies , Fatty Acids/blood , Aged , Risk Factors , Adult , Fatty Acids, Omega-3/blood
5.
J Exp Med ; 221(7)2024 Jul 01.
Article in English | MEDLINE | ID: mdl-38805014

ABSTRACT

Phenotypic plasticity is a rising cancer hallmark, and lung adeno-to-squamous transition (AST) triggered by LKB1 inactivation is significantly associated with drug resistance. Mechanistic insights into AST are urgently needed to identify therapeutic vulnerability in LKB1-deficient lung cancer. Here, we find that ten-eleven translocation (TET)-mediated DNA demethylation is elevated during AST in KrasLSL-G12D/+; Lkb1L/L (KL) mice, and knockout of individual Tet genes reveals that Tet2 is required for squamous transition. TET2 promotes neutrophil infiltration through STAT3-mediated CXCL5 expression. Targeting the STAT3-CXCL5 nexus effectively inhibits squamous transition through reducing neutrophil infiltration. Interestingly, tumor-infiltrating neutrophils are laden with triglycerides and can transfer the lipid to tumor cells to promote cell proliferation and squamous transition. Pharmacological inhibition of macropinocytosis dramatically inhibits neutrophil-to-cancer cell lipid transfer and blocks squamous transition. These data uncover an epigenetic mechanism orchestrating phenotypic plasticity through regulating immune microenvironment and metabolic communication, and identify therapeutic strategies to inhibit AST.


Subject(s)
Chemokine CXCL5 , DNA-Binding Proteins , Dioxygenases , Lung Neoplasms , Neutrophils , Proto-Oncogene Proteins , STAT3 Transcription Factor , Animals , Neutrophils/metabolism , STAT3 Transcription Factor/metabolism , Mice , Lung Neoplasms/metabolism , Lung Neoplasms/pathology , Lung Neoplasms/genetics , DNA-Binding Proteins/metabolism , DNA-Binding Proteins/genetics , Chemokine CXCL5/metabolism , Chemokine CXCL5/genetics , Proto-Oncogene Proteins/metabolism , Proto-Oncogene Proteins/genetics , Humans , Dioxygenases/metabolism , Pinocytosis , Cell Line, Tumor , Neutrophil Infiltration , Mice, Knockout , Mice, Inbred C57BL , Lipid Metabolism
6.
BMC Pregnancy Childbirth ; 24(1): 392, 2024 May 28.
Article in English | MEDLINE | ID: mdl-38807050

ABSTRACT

BACKGROUND: Women diagnosed with gestational diabetes mellitus often rely on internet-based health information for managing their condition. This study aims to investigate the present state of electronic health literacy among women with gestational diabetes mellitus, analyze the influencing factors, and explore their experiences regarding accessing, comprehending, evaluating, and applying online health information pertinent to gestational diabetes mellitus. METHODS: A sequential explanatory mixed methods research design was adopted in this study. Initially, 235 women with gestational diabetes mellitus participated in a cross-sectional survey. The research tools included general information and the Chinese version of the electronic Health Literacy Scale (eHEALS). Descriptive analyses were conducted to describe the characteristics of the sample, and multiple linear regression analyses were used to explore the factors influencing electronic health literacy among women with gestational diabetes mellitus. Secondly, 11 women with gestational diabetes mellitus joined semi-structured in-depth interviews to obtain their perceptions about online health information. The data were analyzed using inductive content analysis to develop themes. RESULTS: The median score of eHEALS in the Chinese version among 235 women diagnosed with gestational diabetes mellitus was 29 (interquartile range [IQR], 26 to 32). Factors influencing electronic health literacy among these women included accessing health information from medical professionals (ß = 0.137, p = 0.029) and utilizing health information from applications (ß = 0.159, p = 0.013). From the qualitative phase of the study, four thematic categories emerged: reasons and basis for accessing health information from the Internet; address barriers to accessing and applying online health information; desires for a higher level of online health information services; outcomes of accessing and applying online health information. CONCLUSION: The electronic health literacy of women diagnosed with gestational diabetes mellitus remains suboptimal and warrants improvement. The sources of access to health information affect electronic health literacy in women with gestational diabetes mellitus. Moreover, women facing gestational diabetes encounter numerous impediments when attempting to access health-related information online, underscoring the necessity for enhanced online health information services to meet their needs.


Subject(s)
Diabetes, Gestational , Health Literacy , Internet , Humans , Female , Diabetes, Gestational/psychology , Pregnancy , Adult , Cross-Sectional Studies , China , Surveys and Questionnaires , Pregnant Women/psychology , Consumer Health Information/methods , Young Adult
7.
BMC Pregnancy Childbirth ; 24(1): 394, 2024 May 30.
Article in English | MEDLINE | ID: mdl-38816809

ABSTRACT

BACKGROUND: Fear of childbirth (FOC) can influence both maternal and child health. Research on FOC in China is scarce, especially on rural women. This study aimed to assess pre- and postpartum FOC and its predictors among Chinese rural women. METHODS: This was a prospective correlation study. A total of 569 women completed the prenatal questionnaire in the third trimester, and 477 of them completed the postpartum questionnaire within three days after childbirth. Maternal socio-demographic information, clinical information, childbirth self-efficacy and prenatal and postpartum FOC were investigated. FOC was evaluated using the Wijma Childbirth Expectancy/ Experience Questionnaire (WDEQ). Descriptive, bivariate, multivariate linear regression analysis, univariate and multivariate logistic regression analyses were performed. RESULTS: The mean pre- and postpartum FOC scores were 64.5 (standard deviation: 25.1) and 64.3 (standard deviation: 23.9), respectively, with 20.8% of women reporting severe fear before childbirth and 18.2% after childbirth. Multivariate linear regression analysis revealed predictors for higher levels of prenatal FOC including higher education level, nullipara, higher monthly household income, lower family support, and lower childbirth self-efficacy (p < 0.05) and the predictors for higher levels of postpartum FOC included unemployed status, lower childbirth self-efficacy, and higher prenatal FOC (p < 0.05). Multivariate logistic regression showed that higher childbirth self-efficacy reduced the likelihood of severe prenatal FOC (OR: 0.99, p < 0.001), while severe prenatal FOC increased the likelihood of severe postpartum FOC (OR: 3.57, p < 0.001). CONCLUSION: The rural women have high levels of FOC before and after childbirth, with approximately 20% experiencing severe FOC during both periods. Higher education level, nullipara, higher monthly household income, lower family support, and lower childbirth self-efficacy are predictors of heightened prenatal FOC. Unemployed status, lower childbirth self-efficacy, and higher prenatal FOC are predictors of heightened postpartum FOC. Notably, enhancing childbirth self-efficacy emerges as crucial in mitigating severe prenatal FOC, while severe prenatal FOC significantly increases the likelihood of severe postpartum FOC. The development of targeted intervention strategies for the above factors can help reduce women's FOC level and improve their overall pregnancy and childbirth experience.


Subject(s)
Fear , Parturition , Postpartum Period , Rural Population , Self Efficacy , Humans , Female , Adult , Fear/psychology , China , Pregnancy , Rural Population/statistics & numerical data , Parturition/psychology , Prospective Studies , Postpartum Period/psychology , Surveys and Questionnaires , Young Adult
8.
Mitochondrial DNA B Resour ; 9(4): 419-422, 2024.
Article in English | MEDLINE | ID: mdl-38586512

ABSTRACT

The saddleback silver-biddy Gerres limbatus (Cuvier 1830) is distributed in Indo-West Pacific Oceans and associated with shallow coastal marine waters and estuaries. In this study, the complete mitochondrial genome of G. limbatus was firstly documented, which is 16,730 bp in length, including 13 protein-coding genes, 22 transfer RNA genes and 2 ribosomal RNA genes. The overall base composition of the mitochondrial genome is 26.42% A, 28.68% C, 27.32% T, and 17.58% G. The Maximum Likelihood phylogenetic tree was constructed based on COI gene of the 31 species from the family Gerreidae, with Heteroclinus puellarum and Hypopterus macropterus as outgroups. It revealed that G. erythrourus was placed as the sister group to G. limbatus.

9.
Environ Toxicol ; 2024 Apr 09.
Article in English | MEDLINE | ID: mdl-38591780

ABSTRACT

BACKGROUND: Glioma represents the predominant primary malignant brain tumor. For several years, molecular profiling has been instrumental in the management and therapeutic stratification of glioma, providing a deeper understanding of its biological complexity. Accumulating evidence unveils the putative involvement of zinc finger proteins (ZNFs) in cancer. This study aimed to elucidate the role and significance of ZNF207 in glioma. METHODS: Utilizing online data such as The Cancer Genome Atlas (TCGA), the Chinese Glioma Genome Atlas (CGGA), the Genotype-Tissue Expression (GTEx) project, the Clinical Proteomic Tumor Analysis Consortium (CPTAC), and the Human Protein Atlas (HPA) databases, in conjunction with bioinformatics methodologies including GO, KEGG, GSEA, CIBERSORT immune cell infiltration estimation, and protein-protein interaction (PPI) analysis, enabled a comprehensive exploration of ZNF207's involvement in gliomagenesis. Immunohistochemistry and RT-PCR techniques were employed to validate the expression level of ZNF207 in glioma samples. Subsequently, the biological effects of ZNF207 on glioma cells were explored through in vitro assays. RESULTS: Our results demonstrate elevated expression of ZNF207 in gliomas, correlating with unfavorable patient outcomes. Stratification analyses were used to delineate the prognostic efficacy of ZNF207 in glioma with different clinicopathological characteristics. Immunocorrelation analysis revealed a significant association between ZNF207 expression and the infiltration levels of T helper cells, macrophages, and natural killer (NK) cells. Utilizing ZNF207 expression and clinical features, we constructed an OS prediction model and displayed well discrimination with a C-index of 0.861. Moreover, the strategic silencing of ZNF207 attenuated glioma cell advancement, evidenced by diminished cellular proliferation, weakened cell tumorigenesis, augmented apoptotic activity, and curtailed migratory capacity alongside the inhibition of the epithelial-mesenchymal transition (EMT) pathway. CONCLUSIONS: ZNF207 may identify as a prospective biomarker and therapeutic candidate for glioma prevention, providing valuable insights into understanding glioma pathogenesis and treatment strategies.

10.
Soft Matter ; 20(17): 3666-3675, 2024 May 01.
Article in English | MEDLINE | ID: mdl-38623704

ABSTRACT

Hydrogel-based flexible electronic devices serve as a next-generation bridge for human-machine interaction and find extensive applications in clinical therapy, military equipment, and wearable devices. However, the mechanical mismatch between hydrogels and human tissues, coupled with the failure of conformal interfaces, hinders the transmission of information between living organisms and flexible devices, which resulted in the instability and low fidelity of signals, especially in the acquisition of electromyographic (EMG) and electrocardiographic (ECG) signals. In this study, we designed an ion-conductive hydrogel (ICHgel) utilizing multiple physical interactions, successfully applied for human motion monitoring and the collection of epidermal physiological signals. By incorporating fumed silica (F-SiO2) nanoparticles and calcium chloride into an interpenetrating network (IPN) composed of polyvinyl alcohol (PVA) and polyacrylamide (AAm)/acrylic acid (AA) chains, the ICHgel exhibited exceptional tunable stretchability (>1450% strain) and conductivity (10.58 ± 0.85 S m-1). Additionally, the outstanding adhesion of the ICHgel proved to be a critical factor for effective communication between epidermal tissues and flexible devices. Demonstrating its capability to acquire stable electromechanical signals, the ICHgel was attached to different parts of the human body. More importantly, as a flexible electrode, the ICHgel outperformed commercial Ag/AgCl electrodes in the collection of ECG and EMG signals. In summary, the synthesized ICHgel with its outstanding conformal interface capabilities and mechanical adaptability paves the way for enhanced human-machine interaction, fostering the development of flexible electronic devices.


Subject(s)
Acrylates , Electric Conductivity , Hydrogels , Humans , Hydrogels/chemistry , Wearable Electronic Devices , Acrylic Resins/chemistry , Polyvinyl Alcohol/chemistry , Electromyography , Electrocardiography , Adhesives/chemistry , Silicon Dioxide/chemistry , Electrodes
11.
Bioresour Technol ; 399: 130568, 2024 May.
Article in English | MEDLINE | ID: mdl-38467264

ABSTRACT

Activating microbes with light is a promising strategy for addressing ammonia-stressed anaerobic digestion (AD). However, as a critical in-process parameter, homogenous operation, in light-assisted AD amended by bio-fixed bed has received limited attention. This research endeavors to establish a uniform-illuminated biosystem and assess its practical feasibility through a 90-day semi-continuous operation at pilot scale under solar light illumination. With optimal stirring mode (intermittent stirring for 3 min every 15 min), robust methane yields were achieved across various organic loads, reaching 88.7-94.3% of theoretical yield under high ammonium stress (3500 mg/L). The metagenomic analysis unveiled that uniform illumination triggered synergistic effects in AD, fostering a diversified microbial consortium, enhancing carbohydrate and methane metabolism, and facilitating the formation of an electroactive bio-cluster. This study underscores the significance of homogenous illumination in AD systems for efficient waste-to-energy conversion, highlighting the implementation of solar light as a greener approach for scale-up application.


Subject(s)
Ammonia , Ammonium Compounds , Bioreactors , Anaerobiosis , Methane
12.
Med Ultrason ; 26(2): 187-196, 2024 Jun 21.
Article in English | MEDLINE | ID: mdl-38537180

ABSTRACT

AIM: This meta-analysis aimed to assess the precision of Sonazoid contrast-enhanced ultrasound (CEUS) to distinguish hepatocellular carcinoma (HCC) from focal liver lesions (FLLs). MATERIAL AND METHODS: The Cochrane Library, Embase, PubMed, and Web of Science databases were systematically searched and checked for studies using Sonazoid CEUS to characterize HCC. A comprehensive meta-analysis was conducted, involving data pooling, subgroup analyses, meta-regression, and investigation of publication bias. RESULTS: The meta-analysis included fourteen studies. The overall diagnostic accuracy for characterizing HCC was as follows (all ranges show the 95% confidence interval): pooled sensitivity of 0.87 (0.80-0.92), pooled specificity of 0.95 (0.91-0.97), and a diagnostic odds ratio of 121 (61-241). The overall weighted area under the curve was 0.97 (0.95-0.98). The pooled sensitivity, specificity, and diagnostic odds ratio for Sonazoid and Sonovue were 0.75 (0.63- 0.84), 0.97 (0.86-0.99), 82 (15-445); and 0.64 (0.51-0.76), 0.98 (0.91-0.99), 72 (17-311), respectively. The sources of heterogeneity were identified as the study location, prevailing risk factor, reference diagnosis standard, criteria of Sonazoid CUES, and the proportion of cases of HCC. We observed no potential publication bias. CONCLUSION: Sonazoid CEUS is efficient to distinguish HCC from FLLs, with good sensitivity and specificity. It is comparable to Sonovue CEUS to diagnose HCC.


Subject(s)
Carcinoma, Hepatocellular , Contrast Media , Ferric Compounds , Iron , Liver Neoplasms , Oxides , Sensitivity and Specificity , Ultrasonography , Humans , Liver Neoplasms/diagnostic imaging , Carcinoma, Hepatocellular/diagnostic imaging , Ultrasonography/methods , Reproducibility of Results , Image Enhancement/methods , Liver/diagnostic imaging , Diagnosis, Differential
13.
ACS Sens ; 9(4): 2091-2100, 2024 04 26.
Article in English | MEDLINE | ID: mdl-38502945

ABSTRACT

The flexible bimodal e-skin exhibits significant promise for integration into the next iteration of human-computer interactions, owing to the integration of tactile and proximity perception. However, those challenges, such as low tactile sensitivity, complex fabrication processes, and incompatibility with bimodal interactions, have restricted the widespread adoption of bimodal e-skin. Herein, a bimodal capacitive e-skin capable of simultaneous tactile and proximity sensing has been developed. The entire process eliminates intricate fabrication techniques, employing DLP-3D printing for the electrode layers and sacrificial templating for the dielectric layers, conferring high tactile sensitivity (1.672 kPa-1) and rapid response capability (∼30 ms) to the bimodal e-skin. Moreover, exploiting the "fringing electric field" effect inherent in parallel-plate capacitors has facilitated touchless sensing, thereby enabling static distance recognition and dynamic gesture recognition of varying materials. Interestingly, an e-skin sensing array was created to identify the positions and pressure levels of various objects of different masses. Furthermore, with the aid of machine learning techniques, an artificial neural network has been established to possess intelligent object recognition capabilities, facilitating the identification, classification, and training of various object configurations. The advantages of the bimodal e-skin render it highly promising for extensive applications in the field of next-generation human-machine interaction.


Subject(s)
Neural Networks, Computer , Touch , Wearable Electronic Devices , Humans , Pressure , Electrodes
14.
Stem Cell Rev Rep ; 20(4): 996-1014, 2024 May.
Article in English | MEDLINE | ID: mdl-38457061

ABSTRACT

The placenta stands out as a unique, transitory, and multifaceted organ, essential to the optimal growth and maturation of the fetus. Functioning as a vital nexus between the maternal and fetal circulatory systems, it oversees the critical exchange of nutrients and waste. This exchange is facilitated by placental cells, known as trophoblasts, which adeptly invade and remodel uterine blood vessels. Deviations in placental development underpin a slew of pregnancy complications, notably fetal growth restriction (FGR), preeclampsia (PE), recurrent spontaneous abortions (RSA), and preterm birth. Central to placental function and development is epigenetic regulation. Despite its importance, the intricate mechanisms by which epigenetics influence the placenta are not entirely elucidated. Recently, the scientific community has turned its focus to parsing out the epigenetic alterations during placental development, such as variations in promoter DNA methylation, genomic imprints, and shifts in non-coding RNA expression. By establishing correlations between epigenetic shifts in the placenta and pregnancy complications, researchers are unearthing invaluable insights into the biology and pathophysiology of these conditions. This review seeks to synthesize the latest findings on placental epigenetic regulation, spotlighting its crucial role in shaping fetal growth trajectories and development. Through this lens, we underscore the overarching significance of the placenta in the larger narrative of gestational health.


Subject(s)
Epigenesis, Genetic , Placenta , Placentation , Pregnancy Outcome , Humans , Pregnancy , Female , Placentation/genetics , Placenta/metabolism , Pregnancy Outcome/genetics , DNA Methylation/genetics , Fetal Growth Retardation/genetics , Fetal Growth Retardation/pathology , Animals
15.
Int J Biol Macromol ; 262(Pt 1): 129941, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38342254

ABSTRACT

In response to the prevalent issue of thiram as a common pesticide residue on the surface of fruits and vegetables, our research team employed an acidic hydrated metal salt low co-fusion solvent to dissolve cellulose lysis slurry. Subsequently, a regenerated cellulose membrane (RCM) was successfully prepared via sol-gel method. Uniformly sized Ag nanoparticles (NPs) were deposited on RCM utilizing the continuous ion layer adsorption and reaction (SILAR) technique. The resulting Ag NPs/RCM flexible surface-enhanced Raman spectroscopy (SERS) substrates exhibited a minimum detection limit of 5 × 10-9 M for Rhodamine 6G (R6G), demonstrating good uniformity (RSD = 4.86 %) and reproducibility (RSD = 3.07 %). Moreover, the substrate displayed a remarkable sensitivity of 10-10 M toward thiram standard solution. Given its inherent flexibility, the substrate proves advantageous for the detection of three-dimensional environments such as fruit and vegetable surfaces, and its practicality has been confirmed in the detection of thiram residue on apples, tomatoes, pears, and other fruits and vegetables.


Subject(s)
Metal Nanoparticles , Thiram , Thiram/analysis , Vegetables/chemistry , Fruit/chemistry , Metal Nanoparticles/chemistry , Reproducibility of Results , Silver/chemistry , Spectrum Analysis, Raman/methods , Cellulose/analysis
16.
J Exp Biol ; 227(4)2024 Feb 15.
Article in English | MEDLINE | ID: mdl-38284767

ABSTRACT

Heart rate is a crucial physiological indicator for fish, but current measurement methods are often invasive or require delicate manipulation. In this study, we introduced two non-invasive and easy-to-operate methods based on photoplethysmography, namely reflectance-type photoplethysmography (PPG) and remote photoplethysmography (rPPG), which we applied to the large yellow croaker (Larimichthys crocea). PPG showed perfect synchronization with electrocardiogram (ECG), with a Pearson's correlation coefficient of 0.99999. For rPPG, the results showed good agreement with ECG. Under active provision of green light, the Pearson's correlation coefficient was 0.966, surpassing the value of 0.947 under natural light. Additionally, the root mean square error was 0.810, which was lower than the value of 1.30 under natural light, indicating not only that the rPPG method had relatively high accuracy but also that green light may have the potential to further improve its accuracy.


Subject(s)
Electrocardiography , Photoplethysmography , Heart Rate/physiology , Photoplethysmography/methods , Signal Processing, Computer-Assisted
17.
Viruses ; 16(1)2024 01 19.
Article in English | MEDLINE | ID: mdl-38275956

ABSTRACT

Sapovirus (SaV) is a type of gastroenteric virus that can cause acute gastroenteritis. It is highly contagious, particularly among children under the age of 5. In this study, a total of 712 stool samples from children under the age of 5 with acute gastroenteritis were collected. Out of these samples, 28 tested positive for SaV, resulting in a detection rate of 3.93% (28/712). Samples with Ct < 30 were collected for library construction and high-throughput sequencing, resulting in the acquisition of nine complete genomes. According to Blast, eight of them were identified as GI.1, while the remaining one was GI.6. The GI.6 strain sequence reported in our study represents the first submission of the GI.6 strain complete genome sequence from mainland China to the Genbank database, thus filling the data gap in our country. Sequence identity analysis revealed significant nucleotide variations between the two genotypes of SaV and their corresponding prototype strains. Phylogenetic and genetic evolution analyses showed no evidence of recombination events in the obtained sequences. Population dynamics analysis demonstrated potential competitive inhibition between two lineages of GI.1. Our study provides insights into the molecular epidemiological and genetic evolution characteristics of SaV prevalent in the Nantong region of China, laying the foundation for disease prevention and control, as well as pathogen tracing related to SaV in this area.


Subject(s)
Caliciviridae Infections , Gastroenteritis , Sapovirus , Child , Humans , Child, Preschool , Sapovirus/genetics , Phylogeny , Gastroenteritis/epidemiology , Genotype , Genomics , Caliciviridae Infections/epidemiology , Feces
18.
Life Sci ; 336: 122254, 2024 Jan 01.
Article in English | MEDLINE | ID: mdl-37977355

ABSTRACT

AIMS: Gliomas are the most common central nervous system malignancies, with limited therapeutic options and poor prognosis, which are primarily attributed to the "immune desert" microenvironment. Previously, we constructed a three-gene-deleted oncolytic adenovirus (Ad-TD) loaded with non-secreting interleukin-12 (nsIL-12), which could be amplified in tumor cells and induce immunity to suppress tumors. However, the effects of this oncolytic virus on gliomas and their immune microenvironment remain unclear. There is an urgent need for further research. MATERIALS AND METHODS: We constructed a Syrian hamster brain tumor model and demonstrated the efficacy and mechanism of the novel oncolytic virus in treating brain tumors through a series of in vitro and in vivo experiments. We investigated the efficacy and safety (the number of hamsters in each group is either 5 or 10) of the oncolytic virus treatment in Syrian hamsters using a virus-treated group, a control virus-treated group, and a blank control group. KEY FINDINGS: In vitro assays showed that Ad-TD-nsIL-12 could specifically proliferate in brain tumor cells which induce tumor cell apoptosis and intracellular expression of interleukin (IL)-12. Moreover, in vivo experiments demonstrated that Ad-TD-nsIL-12 could effectively inhibit the progression of brain tumors and prolong survival. Ad-TD-nsIL-12 significantly enhanced T-cell infiltration in the brain tumor microenvironment. SIGNIFICANCE: Ad-TD-nsIL-12 can inhibit glioma progression and increase T-cell infiltration in the tumor tissue, particularly infiltration by cytotoxic T cells (CD8+). Ad-TD-nsIL-12 can amplify and produce IL-12, inducing anti-glioma immune responses to inhibit tumor progression.


Subject(s)
Brain Neoplasms , Glioma , Oncolytic Virotherapy , Oncolytic Viruses , Cricetinae , Animals , Humans , Oncolytic Viruses/genetics , Interleukin-12/genetics , Tumor Microenvironment , Cell Line, Tumor , Xenograft Model Antitumor Assays , Glioma/therapy , Brain Neoplasms/therapy , Mesocricetus
19.
Mater Horiz ; 11(3): 822-834, 2024 02 06.
Article in English | MEDLINE | ID: mdl-38018413

ABSTRACT

Recent advances in bioelectronics in mechanical and electrophysiological signal detection are remarkable, but there are still limitations because they are inevitably affected by environmental noise and motion artifacts. Thus, we develop a gel damper-integrated crack sensor inspired by the vibration response of the viscoelastic cuticular pad and slit organs in a spider. Benefitting from the specific crack structure design, the sensor possesses excellent sensing behaviors, including a low detection limit (0.05% strain), ultrafast response ability (3.4 ms) and superior durability (>300 000 cycles). Such typical low-amplitude fast response properties allow the ability to accurately perceive vibration frequency and waveform. In addition, the gel damper exhibits frequency-dependent dynamic mechanical behavior that results in improved stability and reliability of signal acquisition by providing shock resistance and isolating external factors. They effectively attenuate external motion artifacts and low-frequency mechanical noise, resulting in cleaner and more reliable signal acquisition. When the gel damper is combined with the crack-based vibration sensor, the integrated sensor exhibits superior anti-interference capability and frequency selectivity, demonstrating its effectiveness in extracting genuine vocal vibration signals from raw voice recordings. The integration of damping materials with sensors offers an efficient approach to improving signal acquisition and signal quality in various applications.


Subject(s)
Spiders , Vibration , Animals , Spiders/physiology , Reproducibility of Results , Motion
20.
Biochem Pharmacol ; 220: 116015, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38158021

ABSTRACT

Transforming growth factor-beta 1 (TGF-ß1)-induced epithelial-mesenchymal transition (EMT) of renal tubular cells promotes renal fibrosis and the progression of chronic kidney disease (CKD). PDZ domain-containing 1 (PDZK1) is highly expressed in renal tubular epithelial cells; however, its role in TGF-ß1-induced EMT remains poorly understood. The present study showed that PDZK1 expression was extremely downregulated in fibrotic mouse kidneys and its negative correlation with TGF-ß1 expression and the degree of renal fibrosis. In addition, TGF-ß1 downregulated the mRNA expression of PDZK1 in a time- and concentration-dependent manner in vitro. The downregulation of PDZK1 exacerbated TGF-ß1-induced EMT upon oxidative stress, while the overexpression of PDZK1 had the converse effect. Subsequent investigations demonstrated that TGF-ß1 downregulated PDZK1 expression via p38 MAPK or PI3K/AKT signaling in vitro, but independently of ERK/JNK MAPK signaling. Meanwhile, inhibition of the p38/JNK MAPK or PI3K/AKT signaling using chemical inhibitors restored the PDZK1 expression, mitigated renal fibrosis, and elevated renal levels of endogenous antioxidants carnitine and ergothioneine in adenine-induced CKD mice. These findings provide the first evidence suggesting a negative correlation between PDZK1 and renal fibrosis, and identifying PDZK1 as a novel suppressor of renal fibrosis in CKD through ameliorating oxidant stress.


Subject(s)
Renal Insufficiency, Chronic , Transforming Growth Factor beta1 , Animals , Mice , Down-Regulation , Epithelial Cells , Epithelial-Mesenchymal Transition , Fibrosis , Kidney/metabolism , Phosphatidylinositol 3-Kinases/metabolism , Proto-Oncogene Proteins c-akt/metabolism , Renal Insufficiency, Chronic/genetics , Renal Insufficiency, Chronic/metabolism , Transforming Growth Factor beta1/metabolism
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