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1.
Int J Biol Macromol ; : 133603, 2024 Jul 03.
Article de Anglais | MEDLINE | ID: mdl-38969043

RÉSUMÉ

The HD-ZIP (homeodomain-leucine zipper) genes hold significant importance in transcriptional regulation, especially in plant development and responses to abiotic stresses. However, a comprehensive study targeting HD-ZIP family members in passion fruit has been absent. In our current research, 34 HD-ZIP family members (PeHBs) were identified by bioinformatics analysis. Transcriptome analysis revealed that PeHBs exhibited distinct expression patterns when subjected to the four different abiotic stresses, and significant differential expression of PeHBs was also found among the three developmental stages of the fruit and between the purple and yellow genotype passion fruit leaves. An integrated metabolome and transcriptome analysis further revealed that the HD-ZIP III class gene PeHB31 (homologous to ATHB8), was co-upexpressed with lignans in yellow fruit P. edulis (commonly used as a resistance rootstock) when compared to purple fruit P. edulis. The transformation of Arabidopsis and yeast with the PeHB31 gene showed an enhancement in their capacity to withstand drought conditions. Notably, the transgenic Arabidopsis plants exhibited an increase in lignin content within the vascular tissues of their stems. This research lays the groundwork for future studies on the control mechanisms of lignin biosynthesis by HD-ZIP genes (especially HD-ZIP classes III and I) involved in drought tolerance.

2.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi ; 41(3): 577-583, 2024 Jun 25.
Article de Chinois | MEDLINE | ID: mdl-38932545

RÉSUMÉ

Red blood cells are destroyed when the shear stress in the blood pump exceeds a threshold, which in turn triggers hemolysis in the patient. The impeller design of centrifugal blood pumps significantly influences the hydraulic characteristics and hemolytic properties of these devices. Based on this premise, the present study employs a multiphase flow approach to numerically simulate centrifugal blood pumps, investigating the performance of pumps with varying numbers of blades and blade deflection angles. This analysis encompassed the examination of flow field characteristics, hydraulic performance, and hemolytic potential. Numerical results indicated that the concentration of red blood cells and elevated shear stresses primarily occurred at the impeller and volute tongue, which drastically increased the risk of hemolysis in these areas. It was found that increasing the number of blades within a certain range enhanced the hydraulic performance of the pump but also raised the potential for hemolysis. Moreover, augmenting the blade deflection angle could improve the hemolytic performance, particularly in pumps with a higher number of blades. The findings from this study can provide valuable insights for the structural improvement and performance enhancement of centrifugal blood pumps.


Sujet(s)
Conception d'appareillage , Dispositifs d'assistance circulatoire , Hémolyse , Contrainte mécanique , Humains , Dispositifs d'assistance circulatoire/effets indésirables , Érythrocytes/cytologie , Centrifugation , Simulation numérique
3.
Ann Bot ; 2024 Jun 07.
Article de Anglais | MEDLINE | ID: mdl-38845347

RÉSUMÉ

Plant senescence is an integrated program of plant development that aims to remobilize nutrients and energy from senescing tissues to developing organs under developmental and stress-induced conditions. Upstream in the regulatory network, a small family of single-stranded DNA/RNA-binding proteins known as WHIRLYs occupy a central node, acting at multiple regulatory levels and via trans-localization between the nucleus and organelles. In this review, we summarize the current progress on the role of WHIRLY members in plant development and stress-induced senescence. WHIRLY proteins can be traced back in evolution to green algae. WHIRLY proteins trade off the balance of plant developmental senescence and stress-induced senescence through maintaining organelle genome stability via R-loop homeostasis, repressing the transcription at a configuration condition, recruiting RNA to impact organelle RNA editing and splicing, as evidenced in several species, WHIRLY proteins also act as retrograde signal transducers between organelles and the nucleus through protein modification and stromule or vesicle trafficking. In addition, WHIRLY proteins interact with hormones, ROS and environmental signals to orchestrate cell fate in an age-dependent manner. Finally, prospects for further research and promotion to improve crop production under environmental constraints are highlighted.

4.
J Acoust Soc Am ; 155(6): 3580-3588, 2024 Jun 01.
Article de Anglais | MEDLINE | ID: mdl-38829156

RÉSUMÉ

Speech enhancement aims to make noisy speech signals clearer. Traditional time-frequency domain methods struggle to differentiate between speech and noise, leading to a risk of speech distortion. This paper introduces an approach that combines the time domain and time-frequency domain using the W-net module to suppress noise at the front end. The module is an improved version of Wave-U-Net, called TTF-W-Net. We conducted experiments using the TIMIT speech and NOISEX-92 noise datasets to evaluate the enhancement performance achieved by integrating preprocessing networks, specifically Wave-U-Net and our TTF-W-Net, into the baseline methods: Phase, FullSubNet+, and DB-AIAT. Experimental results show that TTF-W-Net outperforms the baseline Wave-U-Net by 15.7% on the PESQ metric and the effect of the network by using our preprocessing method is improved. Consequently, the TTF-W-Net preprocessing Net offers effective speech enhancement.

5.
Opt Lett ; 49(12): 3452-3455, 2024 Jun 15.
Article de Anglais | MEDLINE | ID: mdl-38875643

RÉSUMÉ

In this Letter, we propose and experimentally demonstrate a highly sensitive distributed dynamic pressure sensor based on a dual-linear frequency modulated optical frequency domain reflectometry (OFDR) and a coating thickness-enhanced single-mode fiber (SMF). A dual-sideband linear frequency modulation (LFM) signal is used to interrogate the sensing fiber, which allows us to obtain a dual-sideband Rayleigh backscattering signal. Due to the opposite slopes of the two LFM sidebands, the Rayleigh backscattering spectra of the two sidebands drift in opposite directions when the fiber is disturbed. By subtracting the frequency shifts of the two spectra, we can double the system's sensitivity. We further enhance the sensitivity by using an SMF with a coating thickness of 200 µm. This results in a pressure sensitivity of 3979 MHz/MPa, a measurement accuracy of 0.76 kPa, and a spatial resolution of 35 cm over a 500 m optical fiber. Our system successfully detected a dynamic pressure change at a sampling rate of 1.25 kHz, demonstrating the sensor's excellent dynamic measuring capabilities.

6.
Heliyon ; 10(11): e31681, 2024 Jun 15.
Article de Anglais | MEDLINE | ID: mdl-38841496

RÉSUMÉ

Background: Selpercatinib is effective in the treatment of RET-altered medullary thyroid carcinoma (MTC). This study aimed to evaluate the efficacy and safety of selpercatinib in the treatment of patients with RET-altered MTC. Methods: PubMed, Embase, the Cochrane Library, and ClinicalTrials.gov were searched from their inception to April 5, 2024. Outcomes included complete response (CR), partial response (PR), stable disease (SD), objective response rate (ORR), disease control rate (DCR), and adverse events (AEs). We carried out a meta-analysis of these studies and exploratory subgroup analyses. The effect sizes for all pooled results were presented as 95% confidence intervals with upper and lower limits. Results: The pooled CR, PR, and SD rates for all patients were 10%, 59%, and 26%, respectively. The pooled ORR in all patients was 70%, while the pooled ORR in pre-treated and non-pre-treated groups were 67% and 70%, respectively. The pooled DCR in all patients was 95%, while the pooled DCR in pre-treated and non-pre-treated groups were 96% and 95%, respectively. The most common AEs associated with selpercatinib were hypertension, alanine aminotransferase (ALT) increased and aspartate aminotransferase (AST) increased. Conclusion: Selpercatinib offers significant benefits to patients with RET-altered MTC with assessable CR, PR, SD, ORR, and grade 3-4 AEs; however, treatment-related AEs should be considered.

7.
Medicine (Baltimore) ; 103(18): e38058, 2024 May 03.
Article de Anglais | MEDLINE | ID: mdl-38701248

RÉSUMÉ

To evaluate the right atrial function in patients with 3-branch coronary artery disease (TBCAD) without myocardial infarction by 2D speckle tracking echocardiography (2D-STE) combined with real-time 3-dimensional echocardiography (RT-3DE). Fifty-six patients admitted to our hospital without myocardial infarction with TBCAD were selected. We divided them into 2 groups according to the coronary angiography results: 28 patients in group B (the rate of stenosis is 50% ~< 75%); 28 patients in group C (the rate of stenosis is ≥75%); in addition, 30 healthy volunteers were screened as group A. All subjects underwent RT-3DE to obtain the right atrial volume (RAVmax, RAVmin, and RAVp), and then we calculated the right atrial passive and active ejection fraction (RAPEF, RAAEF), and maximum volume index (RAVImax). In addition, to measure the strain rates (RASRs, RASRe, RASRa) of the right atrium during systole, early diastole, and late diastole, 2D-STE was applied. Correlations between the 2D-STE parameters and the results of N-terminal pro-brain natriuretic peptide (NT-proBNP) and Gensini scores were analyzed by Pearson linear analysis. Compared with group A, RAPEF and RASRe were reduced, while RAAEF and RASRa were elevated in group B (P < .05). RAPEF, RASRs, RASRe, and RASRa were decreased compared with groups A and B, while RAVmax, RAVmin, RAVp, RAVImax, and RAAEF were increased in group C (P < .05). There was a significant correlation between 2D-STE parameters and the results of NT-proBNP and Gensini scores (P < .05). The storage, conduit, and pump functions of the right atrium are reduced in patients with 3-branch coronary artery disease without myocardial infarction; 2D-STE combined with RT-3DE is valuable in the evaluation of the right atrium in patients with coronary artery disease.


Sujet(s)
Maladie des artères coronaires , Échocardiographie tridimensionnelle , Atrium du coeur , Peptide natriurétique cérébral , Humains , Mâle , Échocardiographie tridimensionnelle/méthodes , Femelle , Adulte d'âge moyen , Maladie des artères coronaires/physiopathologie , Maladie des artères coronaires/imagerie diagnostique , Peptide natriurétique cérébral/sang , Atrium du coeur/imagerie diagnostique , Atrium du coeur/physiopathologie , Sujet âgé , Fragments peptidiques/sang , Fonction auriculaire droite/physiologie , Échocardiographie/méthodes , Coronarographie/méthodes
8.
BMC Prim Care ; 25(1): 133, 2024 Apr 25.
Article de Anglais | MEDLINE | ID: mdl-38664696

RÉSUMÉ

BACKGROUND: Village doctors are the main health service providers in China's rural areas. Compared with other rural groups, they will have a sense of relative deprivation, which has an impact on their practice mentality and job stability. This study aims to analyze the changes and causes of relative deprivation among village doctors, so as to improve the stability of them. METHODS: The data were collected from two surveys conducted in Shandong Province in 2015 and 2021. In 2015, 322 village doctors were surveyed and 307 questionnaires were collected, with a recovery rate of 95.3%. In 2021, 394 village doctors were surveyed and 366 questionnaires were collected, with a recovery rate of 92.9%. Descriptive and univariate analysis were used to compare the changes before and after the survey. RESULTS: The scores of vertical deprivation of village doctors increased from 2.77 ± 0.81 in 2015 to 3.04 ± 0.83 in 2021, with a statistically significant difference (P < 0.001). The reference group selected by village doctors changed from village teachers to ordinary villagers. Compared to village teachers, the horizontal deprivation score of village doctors increased from 3.47 ± 0.87 to 3.97 ± 0.77, with a statistically significant difference (P < 0.001). Compared to villagers, only the professional reputation deprivation score increased, from 2.38 ± 0.93 to 2.68 ± 0.76, with a statistically significant difference (P < 0.05). CONCLUSIONS: As time goes by, village doctors fail to reach the expected level in terms of economic income, social status, professional reputation and living standards, resulting in a sense of relative deprivation. This may have a negative impact on village doctors' work motivation and behavior, and will fail to guarantee the sustainability of the team. We should pay attention to this unbalanced mentality of village doctors.


Sujet(s)
Médecins , Humains , Études transversales , Chine/épidémiologie , Femelle , Mâle , Adulte , Médecins/psychologie , Médecins/statistiques et données numériques , Enquêtes et questionnaires , Adulte d'âge moyen , Satisfaction professionnelle , Agents de santé communautaire , Services de santé ruraux/statistiques et données numériques , Population rurale/statistiques et données numériques
9.
Ecotoxicol Environ Saf ; 277: 116326, 2024 Jun 01.
Article de Anglais | MEDLINE | ID: mdl-38640800

RÉSUMÉ

The available information regarding the impact of antimony (Sb), a novel environmental pollutant, on the intestinal microbiota and host health is limited. In this study, we conducted physiological characterizations to investigate the response of adult zebrafish to different environmental concentrations (0, 30, 300, and 3000 µg/L) of Sb over a period of 14 days. Biochemical and pathological changes demonstrated that Sb effectively compromised the integrity of the intestinal physical barrier and induced inflammatory responses as well as oxidative stress. Analysis of both intestinal microbial community and metabolome revealed that exposure to 0 and 30 µg/L of Sb resulted in similar microbiota structures; however, exposure to 300 µg/L altered microbial communities' composition (e.g., a decline in genus Cetobacterium and an increase in Vibrio). Furthermore, exposure to 300 µg/L significantly decreased levels of bile acids and glycerophospholipids while triggering intestinal inflammation but activating self-protective mechanisms such as antibiotic presence. Notably, even exposure to 30 µg/L of Sb can trigger dysbiosis of intestinal microbiota and metabolites, potentially impacting fish health through the "microbiota-intestine-brain axis" and contributing to disease initiation. This study provides valuable insights into toxicity-related information concerning environmental impacts of Sb on aquatic organisms with significant implications for developing management strategies.


Sujet(s)
Antimoine , Microbiome gastro-intestinal , Polluants chimiques de l'eau , Danio zébré , Animaux , Microbiome gastro-intestinal/effets des médicaments et des substances chimiques , Polluants chimiques de l'eau/toxicité , Antimoine/toxicité , Stress oxydatif/effets des médicaments et des substances chimiques , Métabolome/effets des médicaments et des substances chimiques , Métabolomique
10.
Sci Rep ; 14(1): 5194, 2024 03 02.
Article de Anglais | MEDLINE | ID: mdl-38431760

RÉSUMÉ

The study aims to assess the accuracy of the arterial blood gas (ABG) analysis in measuring hemoglobin, potassium, sodium, and glucose concentrations in comparison to standard venous blood analysis among patients diagnosed with chronic obstructive pulmonary disease (COPD). From January to March 2023, results of ABG analysis and simultaneous venous blood sampling among patients with COPD were retrospectively compared, without any intervention being applied between the two methods. The differences in hemoglobin, potassium, sodium, and glucose concentrations were assessed using a statistical software program (R software). There were significant differences in the mean concentrations of hemoglobin (p < 0.001), potassium (p < 0.001), and sodium (p = 0.001) between the results from ABG and standard venous blood analysis. However, the magnitude of the difference was within the total error allowance (TEa) of the United States of Clinical Laboratory Improvement Amendments (US-CLIA). As for the innovatively studied glucose concentrations, a statistically significant difference between the results obtained from ABG (7.8 ± 3.00) mmol·L-1 and venous blood (6.72 ± 2.44) mmol·L-1 was noted (p < 0.001), with the difference exceeding the TEa of US-CLIA. A linear relationship between venous blood glucose and ABG was obtained: venous blood glucose (mmol·L-1) = - 0.487 + 0.923 × ABG glucose (mmol·L-1), with R2 of 0.882. The hemoglobin, potassium, and sodium concentrations in ABG were reliable for guiding treatment in managing COPD emergencies. However, the ABG analysis of glucose was significantly higher as compared to venous blood glucose, and there was a positive correlation between the two methods. Thus, a linear regression equation in this study combined with ABG analysis could be helpful in quickly estimating venous blood glucose during COPD emergency treatment before the standard venous blood glucose was available from the medical laboratory.


Sujet(s)
Broncho-pneumopathie chronique obstructive , Sodium , Humains , Glucose , Glycémie , Potassium , Études rétrospectives , Gazométrie sanguine/méthodes , Hémoglobines/analyse
11.
Plants (Basel) ; 13(3)2024 Feb 03.
Article de Anglais | MEDLINE | ID: mdl-38337981

RÉSUMÉ

Sugarcane is the most important sugar crop and one of the leading energy-producing crops in the world. Ratoon stunting disease (RSD), caused by the bacterium Leifsonia xyli subsp. xyli, poses a huge threat to ratoon crops, causing a significant yield loss in sugarcane. Breeding resistant varieties is considered the most effective and fundamental approach to control RSD in sugarcane. The exploration of resistance genes forms the foundation for breeding resistant varieties through molecular technology. The pglA gene is a pathogenicity gene in L. xyli subsp. xyli, encoding an endopolygalacturonase. In this study, the pglA gene from L. xyli subsp. xyli and related microorganisms was analyzed. Then, a non-toxic, non-autoactivating pglA bait was successfully expressed in yeast cells. Simultaneously the yeast two-hybrid library was generated using RNA from the L. xyli subsp. xyli-infected sugarcane. Screening the library with the pglA bait uncovered proteins that interacted with pglA, primarily associated with ABA pathways and the plant immune system, suggesting that sugarcane employs these pathways to respond to L. xyli subsp. xyli, triggering pathogenicity or resistance. The expression of genes encoding these proteins was also investigated in L. xyli subsp. xyli-infected sugarcane, suggesting multiple layers of regulatory mechanisms in the interaction between sugarcane and L. xyli subsp. xyli. This work promotes the understanding of plant-pathogen interaction and provides target proteins/genes for molecular breeding to improve sugarcane resistance to L. xyli subsp. xyli.

12.
Am J Transl Res ; 16(1): 208-215, 2024.
Article de Anglais | MEDLINE | ID: mdl-38322555

RÉSUMÉ

OBJECTIVE: To investigate the postoperative pulmonary function, imaging descriptions and complications in infants with congenital pulmonary airway malformations (CPAM), and to examine the impact of different surgical resections on the prognosis of infants. METHODS: Data of 30 infants with CPAM who underwent surgery at the department of Pediatric Surgery, Guangzhou Women and Children's Medical Center from June 2021 to June 2022 were retrospectively collected and analyzed. The pulmonary function indexes of the infants during the first month and first year after surgery were analyzed to assess prognosis. Pulmonary function data from healthy individuals at similar age were collected as a control group. RESULTS: The post-operative short-term pulmonary function was recovered to a normal level in 26.7% cases of 30 CPAM infants, with a decrease in tidal volume (VT), ratio inspiratory time to expiratory time (TI/TE), time to peak tidal expiratory flow as a proportion of expiratory time (TPTEF/TE), volume to peak expiratory flow as a proportion of exhaled volume (VPEF/VE) and mean expiratory flow as a proportion of mean inspiratory flow (MEF/MIF) when compared to the control group (all P<0.01). One year after operation, 25 CPAM infants received pulmonary function tests and 52% of them had indexes at normal level. There was no statistically significant difference in results of pulmonary function test between infants who received lobectomy and those who received segmentectomy (P>0.05). The postoperative complication rate was 26.7%. CONCLUSION: Over half of CPAM infants have normalized lung function one year after operation and the choice of lobectomy and segmentectomy had no significant difference on prognosis of infants.

13.
Front Public Health ; 12: 1284180, 2024.
Article de Anglais | MEDLINE | ID: mdl-38356943

RÉSUMÉ

Objectives: The proportion of middle-aged and older adult people exposed to the Internet continues to grow. Internet use may have an impact on the mental health of the older adult, especially loneliness. This study analyzed the relationship between Internet use and presence of loneliness. Methods: A total of 550 person aged 45 years and above were randomly selected from a province in eastern China at the end of 2022. The outcome variable was presence of loneliness, as measured by self-report. Descriptive analysis, chi-square test and binary logistic analysis were used to analyze the data. Results: 58.3% of respondents use the Internet. Internet use could reduce the possible of reported loneliness in middle-aged and older adult people (OR = 0.652, 95%CI: 0.465, 0.940), and residence played a moderating role in the relationship between them. Middle-aged and older adults who used the Internet for 1-3 h (OR = 0.464, 95%CI: 0.275, 0.784) and 3-5 h (OR = 0.484, 95%CI: 0.247, 0.946) were less likely to felt lonely than those who used the Internet for less than 1 h per day. In addition, middle-aged and older adult people using the Internet to contact relatives and friends (OR = 0.488, 95%CI:0.292, 0.818), read the news (OR = 0.485, 95%CI:0.277, 0.848), assets management (OR = 0.297, 95%CI:0.109, 0.818) were less likely to report loneliness, while those who made online payment (OR = 3.101, 95%CI:1.413, 6.807) were more likely to report loneliness. Conclusion: There is a significant negative correlation between Internet use and presence of loneliness, but different Internet duration and content have different effects on loneliness in middle-aged and older adult people. We should pay attention to the impact of Internet use on loneliness in middle-aged and older adult people.


Sujet(s)
Utilisation de l'internet , Solitude , Adulte d'âge moyen , Humains , Sujet âgé , Solitude/psychologie , Émotions , Internet , Chine
14.
PeerJ ; 12: e16719, 2024.
Article de Anglais | MEDLINE | ID: mdl-38259670

RÉSUMÉ

Objectives: After an episode of acute pulmonary embolism (APE), activated platelets have the ability to release various bioactive factors that can stimulate both proliferation and migration of pulmonary artery smooth muscle cells (PASMCs). SCUBE1 has been previously reported to engage in platelet-platelet interactions, potentially contributing to the activation of platelets in early onset thrombi. The purpose of this study was to examine the alterations in SCUBE1 expression in PASMCs after APE, as well as understand the mechanism behind these changes. Methods: The platelet-rich plasma samples of both APE patients and healthy individuals were collected. A hyperproliferative model of PASMCs was established by using platelet-derived growth factor (PDGF) as a stimulator and various assays were used to investigate how SCUBE1-mediated BMP7 can regulate PDGF-induced PASMC proliferation and migration. Results: Elevated level of SCUBE1 were observed in platelet-rich plasma from patients with APE and in PASMCs induced by PDGF. SCUBE1 interference ameliorated PDGF-driven cell proliferation and migration, and also downregulated PCNA expression. Additionally, mechanistic studies demonstrated that SCUBE1 could directly bind to bone morphogenetic protein 7 (BMP7) and enhance BMP7 expression, which completely abolished the impact of SCUBE1 silencing on proliferation and migration ability of PASMCs after PDGF treatment. Conclusion: In the PDGF-induced proliferation of PASMCs, the expression of SCUBE1 and BMP7 was upregulated. Silencing of SCUBE1 impeded PDGF-induced proliferation and migration of PASMCs by restraining BMP7.


Sujet(s)
Protéine morphogénétique osseuse de type 7 , Protéines de liaison au calcium , Embolie pulmonaire , Humains , Maladie aigüe , Protéine morphogénétique osseuse de type 7/génétique , Protéines de liaison au calcium/génétique , Prolifération cellulaire , Myocytes du muscle lisse/cytologie , Facteur de croissance dérivé des plaquettes/pharmacologie , Artère pulmonaire
15.
Food Chem ; 443: 138493, 2024 Jun 15.
Article de Anglais | MEDLINE | ID: mdl-38281413

RÉSUMÉ

A 15-channel pressure filtration purification method was presented for high throughput sample preparation of aquatic products. A cost-effective device was constructed and melamine sponge was selected as the cleanup sorbent. Upon interfacing with HPLC-MS/MS, the analytical procedure demonstrated its suitability for quantifying 160 pesticides and veterinary drug residues in aquatic products such as fish, shrimp, and crab. The method achieved sample recoveries ranging from 61.3 to 124.9 %. The detection limits were established between 0.5 and 1.0 µg/kg, while the quantitation limits were confirmed to be within the range of 1.0-2.0 µg/kg. The method was applied to quantify the pesticide and veterinary drug residues in mostly consumed aquatic products from five coastal provinces in China. The results showed significant differences between different aquatic products in the concentrations of pesticide and veterinary drug residues, implying the necessity of supervision for the accurate determination of pesticides and veterinary drugs.


Sujet(s)
Résidus de pesticides , Pesticides , Triazines , Médicaments vétérinaires , Animaux , Pesticides/analyse , Spectrométrie de masse en tandem/méthodes , Médicaments vétérinaires/analyse , , Chromatographie en phase liquide à haute performance/méthodes , Résidus de pesticides/analyse , Extraction en phase solide/méthodes
16.
J Inflamm Res ; 17: 469-485, 2024.
Article de Anglais | MEDLINE | ID: mdl-38282712

RÉSUMÉ

Purpose: Inflammation triggers a metabolic shift in macrophages from oxidative phosphorylation to glycolysis, a phenomenon known as the Warburg effect. This metabolic reprogramming worsens inflammation and cascades into organ damage. Angiotensin-(1-7) [Ang-(1-7)], a small molecule, has demonstrated anti-inflammatory properties. This study investigates whether Ang-(1-7) mitigates inflammation in LPS-induced macrophages and septic mice by regulating the Warburg effect in immune metabolism. Methods: The study induced macrophages with LPS in vitro and measured inflammatory factors using ELISA and Western blot. Key enzymes in glycolysis, mitochondrial respiratory complexes, and citrate pathway key molecules were assessed using Western blot and qRT-PCR. Mitochondrial membrane potential (MMP), lactate, and ATP were measured using assay kits. In vivo, a mouse model of sepsis induced by LPS was used. Kidney tissues were examined for pathological and mitochondrial ultrastructural alterations. The levels of inflammatory factors in mouse serum, glycolysis and citrate pathway-related molecules in the kidney were assessed using qRT-PCR, Western blot, and immunofluorescence techniques. Additionally, MMP, lactate, and ATP in the kidney were measured using assay kits. Results: In vitro experiments demonstrated that Ang-(1-7) inhibited the levels of inflammatory factors in LPS-treated RAW264.7 cells. It also reduced the expression of key glycolytic enzymes HK2, PFKFB3, and PKM2, as well as lactate levels. Additionally, it decreased intracellular citrate accumulation, enhanced mitochondrial respiratory complexes I and III, and ATP levels. Ang-(1-7) alleviated MMP damage, modulated citrate pathway-related molecules, including SLC25A1, ACLY, and HIF-1α. In vivo experiments showed that Ang-(1-7) lowered glycolysis levels in septic mice, improved mitochondrial ultrastructure and function, mitigated inflammation and renal tissues damage in septic mice, and suppressed the expression of key molecules in the citrate pathway. Conclusion: In conclusion, Ang-(1-7) can regulate the Warburg effect through the citrate pathway, thereby alleviating inflammation in LPS-induced macrophages and septic mice.

17.
Chin J Integr Med ; 30(1): 10-17, 2024 Jan.
Article de Anglais | MEDLINE | ID: mdl-36790554

RÉSUMÉ

OBJECTIVE: To evaluate the effect of manual acupuncture on endometrial blood flow parameters by three-dimensional (3D) power Doppler ultrasound in women undergoing in vitro fertilization embryo transfer (IVF-ET). METHODS: Seventy patients undergoing IVF-ET were equally randomized into traditional or sham acupuncture treatment group for totally 4 days (from the day of oocyte aspiration to the day of embryo transfer) of treatment by random envelope method at the Reproductive Medicine Center and Outpatient Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology from January 2013 to December 2015. Patients in the traditional acupuncture group accepted traditional acupuncture methods with manual acupuncture, and Zhongji (CV3), Qihai (CV 6), Sanyinjiao (SP6), Taichong (LR 3), Tianshu (ST 25), Guilai (ST 29) and Zusanli (ST 36) were chosen. Patients at the sham acupuncture group accepted shallow acupuncture methods at 4 non-meridian points at each shoulder and upper arm. Outcome measures included endometrial ultrasonic indices such as vascularization index (VI), flow index (FI) and vascularization flow index (VFI), endometrial thickness and volume, subendometrial VI (sVI), subendometrial FI (sFI), subendometrial VFI (sVFI), implantation rate, clinical pregnancy rate, abortion rate, live birth rate and number of live births. RESULTS: Finally, 34 patients in the traditional acupuncture group and 35 in the sham acupuncture group completed this trial. VI, FI and VFI of the traditional acupuncture group were significantly higher than those in the sham acupuncture group (P<0.05). No significant differences were found in endometrial thickness, endometrial volume, sVI, sFI, sVFI, implantation rate, clinical pregnancy rate, abortion rate, live birth rate and number of live births (P>0.05). CONCLUSIONS: Manual acupuncture performed after oocyte aspiration and before transplantation improved the endometrial blood flow parameters VI, RI and VFI in women who underwent IVF-ET, instead of sVI, sFI and sVFI. Therefore, acupuncture might be beneficial in women undergoing IVF-ET by increasing endometrial blood flow and endometrial receptivity. (Registration No. ChiCTR2100053354).


Sujet(s)
Thérapie par acupuncture , Fécondation in vitro , Grossesse , Humains , Femelle , Fécondation in vitro/méthodes , Méthode en simple aveugle , Transfert d'embryon , Taux de grossesse , Endomètre/imagerie diagnostique , Endomètre/vascularisation
18.
Laryngoscope ; 134(5): 2221-2227, 2024 May.
Article de Anglais | MEDLINE | ID: mdl-37937767

RÉSUMÉ

BACKGROUND: Currently, endoscopic-assisted lateral neck dissection (EALND) is performed to reduce postoperative scarring of the anterior neck. This study aimed to compare surgical outcomes between EALND and conventional open lateral neck dissection (COLND) for papillary thyroid carcinoma (PTC) with lateral lymph node metastases (LNM). METHODS: The study reviewed 103 PTC patients who were classified on the basis of surgical type and statistically compared using propensity score matching analysis. RESULTS: The mean operation time is longer, and the cost of surgery is higher in the EALND group than COLND group (all p < 0.05). The numbers of retrieved and positive level II LNs, the rate of level II LNs detection between two groups do not differ significantly (all p > 0.05). The incidence of postoperative neck numbness is lower, and patients are more satisfied with postoperative neck scarring in the EALND group than COLND group (all p < 0.05). The common complications of two groups are transient recurrent laryngeal nerve injury and transient hypoparathyroidism. CONCLUSIONS: EALND is safe and feasible compared with COLND. The incision is more aesthetically satisfactory, which makes EALND a surgical approach for PTC patients with lateral LNM. LEVEL OF EVIDENCE: 3 Laryngoscope, 134:2221-2227, 2024.


Sujet(s)
Carcinome papillaire , Tumeurs de la thyroïde , Humains , Évidement ganglionnaire cervical , Cicatrice/anatomopathologie , Tumeurs de la thyroïde/chirurgie , Tumeurs de la thyroïde/anatomopathologie , Thyroïdectomie , Carcinome papillaire/chirurgie , Cancer papillaire de la thyroïde/chirurgie , Métastase lymphatique , Résultat thérapeutique , Études rétrospectives
19.
Int J Biol Macromol ; 256(Pt 1): 128063, 2024 Jan.
Article de Anglais | MEDLINE | ID: mdl-37963507

RÉSUMÉ

WRKY transcription factors (TFs) are a superfamily of regulators involved in plant responses to pathogens and abiotic stress. Passion fruit is famous for its unique flavor and nutrient-rich juice, but its growth is limited by environmental factors and pathogens. In this study, 55 WRKY genes were identified from the Passiflora edulis genome. The structure and evolutionary characteristics of PeWRKYs were analyzed using a bioinformatics approach. PeWRKYs were classified into seven subgroups (I, IIa, IIb, IIc, IId, IIe, III) according to their homologs in Arabidopsis thaliana. Group IIa PeWRKY48 gene was highly up-regulated under cold stress by RNA expression analysis, and transgenic PeWRKY48 in yeast and Arabidopsis showed resistance exposure to cold, salt, and drought stress. Metabolome and transcriptome co-expression analysis of two different disease resistance genotypes of P. edulis identified PeWRKY30 as a key TF co-expressed with flavonoid accumulation in yellow fruit P. edulis, which may contribute to biotic or abiotic resistance. The qRT-PCR verified the expression of key genes in different tissues of P. edulis and in different species of Passiflora. This study provides a set of WRKY candidate genes that will facilitate the genetic improvement of disease and abiotic tolerance in passion fruit.


Sujet(s)
Arabidopsis , Passiflora , Facteurs de transcription/génétique , Facteurs de transcription/métabolisme , Passiflora/génétique , Fruit/génétique , Fruit/métabolisme , Protéines végétales/génétique , Protéines végétales/métabolisme , Stress physiologique/génétique , Réponse au choc froid , Arabidopsis/génétique , Phylogenèse , Régulation de l'expression des gènes végétaux
20.
Anal Bioanal Chem ; 416(3): 745-757, 2024 Jan.
Article de Anglais | MEDLINE | ID: mdl-37812219

RÉSUMÉ

Moenomycin A, an antimicrobial growth promoter widely used as an additive in aquaculture feedstuffs, has been restricted for use in the European Union and China due to its potential risk of promoting resistant strains of pathogenic bacteria and causing residues in aquatic animal products. Although methods for analyzing moenomycin A in feedstuffs have been developed, no established method exists for aquatic matrices. In this study, we present, for the first time, a sensitive and validated high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method for the determination of moenomycin A in aquatic animal products. Samples were extracted using methanol and purified with the QuEChERS method employing C18 sorbent. The aliquot was dried under a nitrogen stream, reconstituted with methanol-water solvent, and analyzed by HPLC-MS/MS. The developed method exhibited good linearity (r2 > 0.995) over a wide concentration range (1-100 µg/L) and a low limit of detection (1 µg/kg). Average recoveries ranged between 70 and 110% at spiked concentrations of 1, 50, and 100 µg/kg, with associated intra- and inter-day relative standard deviations of 1.25 to 7.32% (n = 6) and 2.91 to 10.08% (n = 3), for different representative aquatic animal production, respectively. To the best of our knowledge, this is the first reported HPLC-MS/MS method for the quantification of moenomycin A in aquatic animal products. The new approach was effectively employed in the analysis of moenomycin A across various aquatic samples.


Sujet(s)
Méthanol , Spectrométrie de masse en tandem , Animaux , Spectrométrie de masse en tandem/méthodes , Chromatographie en phase liquide à haute performance/méthodes , Chine , Extraction en phase solide/méthodes
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