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1.
Molecules ; 29(11)2024 May 29.
Article in English | MEDLINE | ID: mdl-38893436

ABSTRACT

Volatile oil serves as a traditional antipyretic component of Bupleuri Radix. Bupleurum marginatum var. stenophyllum (Wolff) Shan et Y. Li belongs to the genus Bupleurum and is distinguished for its high level of saikosaponins and volatile oils; nonetheless, prevailing evidence remains inconclusive regarding its viability as an alternative resource of other official species. This study aims to systematically compare the volatile oil components of both dried and fresh roots of B. marginatum var. stenophyllum and the four legally available Bupleurum species across their chemical, molecular, bionics, and anatomical structures. A total of 962 compounds were determined via GC-MS from the dried roots; B. marginatum var. stenophyllum showed the greatest differences from other species in terms of hydrocarbons, esters, and ketones, which was consistent with the results of fresh roots and the e-nose analysis. A large number of DEGs were identified from the key enzyme family of the monoterpene synthesis pathway in B. marginatum var. stenophyllum via transcriptome analysis. The microscopic observation results, using different staining methods, further showed the distinctive high proportion of phloem in B. marginatum var. stenophyllum, the structure which produces volatile oils. Together, these pieces of evidence hold substantial significance in guiding the judicious development and utilization of Bupleurum genus resources.


Subject(s)
Bupleurum , Oils, Volatile , Plant Roots , Oils, Volatile/chemistry , Bupleurum/chemistry , Plant Roots/chemistry , Gas Chromatography-Mass Spectrometry , Plants, Medicinal/chemistry
2.
J Appl Microbiol ; 133(5): 2931-2940, 2022 Nov.
Article in English | MEDLINE | ID: mdl-35938518

ABSTRACT

AIMS: Aromatic amines with diverse physical characteristics are often employed as antioxidants and precursors to pharmaceutical products. As the traditional chemical methods pose serious environmental pollution, there is an arising interest in biomanufacturing aromatic amines from renewable feedstocks. MATERIALS AND RESULTS: We report the establishment of a bacterial platform for synthesizing three types of aromatic amines, namely, tyramine, dopamine and phenylethylamine. First, we expressed aromatic amino acid decarboxylase from Enterococcus faecium (pheDC) in an Escherichia coli strain with increasing shikimate (SHK) pathway flux towards L-tyrosine. We found that glycerol served as a better carbon source than glucose, resulting in 940 ± 46 mg/L tyramine from 4% glycerol. Next, the genes of lactate dehydrogenase (ldhA), pyruvate formate lyase (pflB), phosphate acetyltransferase (pta) and alcohol dehydrogenase (adhE) were deleted to mitigate the fermentation by-product formation. The tyramine level was further increased to 1.965 ± 0.205 g/L in the shake flask, which was improved by 2.1 times compared with that of the parental strain. By using a similar strategy, we also managed to produce 703 ± 21 mg/L dopamine and 555 ± 50 mg/L phenethylamine. CONCLUSIONS: We demonstrated that the knockout of ldhA-pflB-pta-adhE is an effective strategy for improving aromatic amine productions. SIGNIFICANCE AND IMPACT OF THE STUDY: This study achieved the highest aromatic amine titres in E. coli under shake flask reported to date.


Subject(s)
Escherichia coli , Lyases , Escherichia coli/genetics , Escherichia coli/metabolism , Phosphate Acetyltransferase/metabolism , Alcohol Dehydrogenase/genetics , Glycerol/metabolism , Dopamine/metabolism , Fermentation , Glucose/metabolism , Pyruvates/metabolism , Aromatic-L-Amino-Acid Decarboxylases/metabolism , Tyrosine/metabolism , Tyramine , Phenethylamines/metabolism , Carbon/metabolism , Pharmaceutical Preparations , Lactate Dehydrogenases/metabolism , Formates/metabolism , Lyases/metabolism , Metabolic Engineering
3.
Appl Microbiol Biotechnol ; 106(24): 8169-8181, 2022 Dec.
Article in English | MEDLINE | ID: mdl-36401644

ABSTRACT

Cyanobacteria are of particular interest for chemical production as they can assimilate CO2 and use solar energy to power chemical synthesis. However, unlike the model microorganism of Escherichia coli, the availability of genetic toolboxes for rapid proof-of-concept studies in cyanobacteria is generally lacking. In this study, we first characterized a set of promoters to efficiently drive gene expressions in the marine cyanobacterium Synechococcus sp. PCC7002. We identified that the endogenous cpcBA promoter represented one of the strongest promoters in PCC7002. Next, a set of shuttle vectors was constructed based on the endogenous pAQ1 plasmid to facilitate the rapid pathway assembly. Moreover, we used the shuttle vectors to modularly optimize the amorpha-4,11-diene synthesis in PCC7002. By modularly optimizing the metabolic pathway, we managed to redistribute the central metabolism toward the amorpha-4,11-diene production in PCC7002 with enhanced product titer. Taken together, the plasmid toolbox developed in this study will greatly accelerate the generation of genetically engineered PCC7002. KEY POINTS: • Promoter characterization revealed that the endogenous cpcBA promoter represented one of the strongest promoters in PCC7002 • A set of shuttle vectors with different antibiotic selection markers was constructed based on endogenous pAQ1 plasmid • By modularly optimizing the metabolic pathway, amorpha-4,11-diene production in PCC7002 was improved.


Subject(s)
Synechococcus , Synechococcus/genetics
4.
J Clin Nurs ; 2022 Nov 15.
Article in English | MEDLINE | ID: mdl-36380461

ABSTRACT

AIMS AND OBJECTIVES: This study aimed to investigate factors associated with facial pressure injury (FPI) in patients receiving non-invasive positive pressure ventilation (NIPPV) during hospitalisation in the intensive care unit (ICU) and to identify predictors of FPI. BACKGROUND: Non-invasive positive pressure ventilation is a method of treating patients with acute and chronic respiratory failure. However, FPI may occur due to unsuitable nasal-oral NIPPV masks and discomfort in contact with the skin surface. DESIGN: A retrospective case-control study. METHODS: From January 2018 to October 2020, a total of 397 patients admitted to a national hospital in Taiwan were enrolled. Patients received NIPPV and routinely used under-mask prophylactic dressings during hospitalisation. Patients were divided into the non-FPI group (n = 357) and the FPI group (n = 40). Demographic, clinical characteristics, acute physiology and chronic health evaluation II scores, and Braden Scale scores were collected from medical records. Logistic regression analysis was performed to examine the contribution of each factor to the FPI, and odds ratios were reported. The STROBE checklist was used in this retrospective case-control study. RESULTS: There were significant differences between the groups in age, serum albumin, C-reactive protein, body mass index (BMI), disease severity, Braden Scale score, length of stay, duration of mechanical ventilation and use of corticosteroids. Logistic regression analysis revealed that the risk factor for FPI was the Braden Scale score [OR = 1.630 (1.176-2.260)], BMI [OR = 0.396 (0.210-1.784)] and corticosteroids [OR = 0.394 (0.159-1.811)], which were predictors of FPI in patients with NIPPV. CONCLUSIONS: Facial pressure injury may still occur in patients who routinely use prophylactic dressings under NIPPV masks. This study provides information on continuing education training for FPI to more accurately identify high-risk and timely preventive measures to reduce FPI. RELEVANCE TO CLINICAL PRACTICE: Addressing FPI-related factors to prevent facial skin damage and reduce comorbidities in patients using NIPPV masks.

5.
Mediators Inflamm ; 2021: 9828995, 2021.
Article in English | MEDLINE | ID: mdl-34220336

ABSTRACT

Prenatal opioid exposure might disturb epigenetic programming in the brain of neonatal offspring with various consequences for gene expressions and behaviors. This study determined whether altered trimethylation of histone 3 at lysine 4 (H3K4me3) in the promoter of the tumor necrosis factor-α (tnf-α) gene with neural cell apoptosis was involved in the ventral-medial striatum, an important brain region for withdrawal symptoms, of neonatal rat offspring from morphine-addicted mothers. Female adult rats were injected with morphine before gestation and until 14 days after giving birth. On postnatal day 14 (P14), rat offspring from morphine-addicted mothers were subjected to an opioid-withdrawal protocol and were analyzed 2 or 8 h after administration of that protocol. Expressions of the TNF-α protein, H3K4me3 in the tnf-α promoter gene, and neural cell apoptosis within the ventral-medial striatum of neonatal rat offspring were evaluated. In the absence of significant opioid withdrawal (2 h after initiation of the opioid-withdrawal protocol on P14), prenatal morphine exposure led to increased levels of H3K4me3 in the tnf-α promoter gene, of the TNF-α protein, and of neural cell apoptosis within the ventral-medial striatum of neonatal rat offspring. Following opioid withdrawal (8 h after initiation of the opioid-withdrawal protocol on P14), differential expression of H3K4me3 in the tnf-α promoter gene locus and upregulation of the level of TNF-α protein expression were further enhanced in these offspring. In addition, increased levels of caspase-3 and neural cell apoptosis were also observed. Taken together, this study revealed that prenatal opioid exposure can activate an epigenetic histone mechanism which regulates proinflammatory factor generation, which hence, led to cell apoptotic damage within the ventral-medial striatum of neonatal rat offspring from morphine-addicted mothers. More importantly, the opioid-withdrawal episode may provide augmented effects for the abovementioned alterations and could lead to deleterious effects in the neonatal brain of such offspring.


Subject(s)
Apoptosis , Histones/metabolism , Morphine Dependence/metabolism , Morphine , Pregnancy, Animal , Promoter Regions, Genetic , Tumor Necrosis Factor-alpha/genetics , Analgesics, Opioid , Animals , Animals, Newborn , Brain/pathology , Caspase 3/metabolism , Corpus Striatum , Epigenesis, Genetic , Female , Maternal Exposure , Methylation , Pregnancy , Rats , Rats, Sprague-Dawley , Substance Withdrawal Syndrome/pathology
6.
Mediators Inflamm ; 2020: 9694012, 2020.
Article in English | MEDLINE | ID: mdl-33376453

ABSTRACT

The activation of microglial cells plays an important role in the cascade of events leading to inflammation-mediated neurodegenerative disorders. Precision therapeutics require that adjunctively feasible drugs be found to prevent microglial cell activation and prevent inflammation-mediated neuronal injury. Dextromethorphan (DM) has been reported to possess neuroprotective effects in lipopolysaccharide- (LPS-) stimulated animals; however, it remains unclear whether epigenetic regulatory mechanisms in microglial cells are involved in such DM-mediated neuroprotective effects. In this study, DM simultaneously suppressed LPS-induced activation of tumor necrosis factor- (TNF-) α expression and subsequent caspase-3 signaling in primary microglial cells associated with notable morphological changes. Furthermore, therapeutic action sites of DM involved differential enhanced trimethylation of H3K4 modifications in the promoter region of tnf-α gene locus in primary microglial cells. In summary, DM may exert neuroprotective and anti-inflammatory effects through differential epigenetic histone modifications of TNF-α expression in microglial cells and might therefore raise the possibility of providing an adjunctively beneficial role for a tentative therapeutic strategy in neurodegenerative diseases resulting from inflammation.


Subject(s)
Anti-Inflammatory Agents/pharmacology , Dextromethorphan/pharmacology , Epigenesis, Genetic/drug effects , Histones/metabolism , Microglia/drug effects , Tumor Necrosis Factor-alpha/genetics , Animals , Caspase 3/physiology , Cells, Cultured , Lipopolysaccharides/pharmacology , Microglia/physiology , Promoter Regions, Genetic , Rats , Rats, Sprague-Dawley
7.
J Clin Nurs ; 28(9-10): 1465-1472, 2019 May.
Article in English | MEDLINE | ID: mdl-30358000

ABSTRACT

AIMS AND OBJECTIVES: To examine the relationships among nursing students' perceived nursing image, caring behaviours and gender-friendliness barriers to determine whether gender-friendliness barriers affect nursing image and caring behaviour among male nursing students. BACKGROUND: Because caring is typically seen as a feminine trait, male nurses face gender-role strains in the current nursing environment. Gender-friendliness barriers may have an impact on the vital relationship between professional nursing image and caring behaviour. DESIGN: This study used a quantitative and cross-sectional research design. METHODS: Participants were 141 male students who had obtained at least 1 month of clinical practice experience. We collected data using three instruments: The Caring Assessment Report Evaluation Q-sort (CARE-Q), Gender-Friendliness Barriers in Nursing Programs (GFB-NP), and Nursing Image-as a Profession Questionnaire (NIPQ). Data were collected from August 2016-July 2017. Partial least squares structural equation modelling (PLS-SEM) with bootstrapping was used to test the hypothesis model. RESULTS: The full model results indicated a direct positive and significant path from professional nursing image to caring behaviour (ß = 0.47, 95% CI = 0.32 to 0.61, t = 6.19, p < 0.001). Gender-friendliness barriers had a direct and significant negative relationship between professional nursing image (ß = -0.31, 95% CI = -0.49 to -0.12, t = 3.17, p < 0.01) and caring behaviour (ß = -0.18, 95% CI = -0.35 to -0.02, t = 2.18, p < 0.05). In addition, the variable of student-perceived barriers to gender-friendliness was indirectly and significantly negatively related to caring behaviour (ß = -0.15, 95% CI = -0.27 to -0.05, t = 2.57, p < 0.05) through professional nursing image. CONCLUSION: Male nursing students with a higher nursing image engage in greater caring behaviour. Gender-friendliness barriers, however, decrease students' nursing image and caring behaviour. RELEVANCE TO CLINICAL PRACTICE: As applied to nursing education, the goal should be to improve male nursing students' caring behaviours and professional nursing image and decrease gender-friendliness barriers.


Subject(s)
Empathy , Nurses, Male/psychology , Students, Nursing/psychology , Adult , Cross-Sectional Studies , Female , Humans , Male , Surveys and Questionnaires
10.
Pediatr Int ; 57(4): 746-9, 2015 Aug.
Article in English | MEDLINE | ID: mdl-26108272

ABSTRACT

Muscle phosphofructokinase (PFK) deficiency is a rare autosomal recessive disease. We report the case of a preterm female infant who was diagnosed with the infantile form of phosphofructokinase deficiency due to a lack of PFK activity in her muscles, manifesting at a corrected age of 1 month as floppy infant syndrome, congenital joint contracture, cleft palate and duplication of the pelvicalyceal system. She died at a corrected age of 6 months due to respiratory failure. We further reviewed other infantile cases in the literature. Congenital hypotonia (78.6%), arthrogryposis (64.3%) and other systemic involvement including encephalopathy (35.7%) and cardiomyopathy (21.4%) are common presentations of the infantile form of PFK deficiency. The overall survival rate of the infantile form is low. The early recognition of multiple system involvement is essential to provide better clinical care for infants with the infantile form of PFK deficiency.


Subject(s)
Glycogen Storage Disease Type VII/diagnosis , Infant, Premature , Fatal Outcome , Female , Glycogen Storage Disease Type VII/complications , Humans , Immunohistochemistry , Infant , Infant, Newborn , Respiratory Insufficiency/diagnosis
11.
Phytomedicine ; 125: 155374, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38301302

ABSTRACT

BACKGROUND: In China, Gardenia jasminoides Ellis (GJE) has a longstanding history of application. The Ministry of Health has listed it as one of the first pharmaceutical or food resources. In ethnic, traditional, and folk medicine, GJE has been used to treat fever and cold and relieve nervous anxiety. Recent studies have confirmed the significant efficacy of GJE for treating central nervous system (CNS) disorders, including Alzheimer's disease, Parkinson's disease, and major depressive disorder; however, GJE has not been systematically evaluated. PURPOSE: This research systematically summarizes global studies on the use of GJE for treating CNS disorders and explores the potential applications and underlying mechanisms via intestinal flora analysis and network pharmacology, aiming to establish a scientific basis for innovative CNS disorder treatment with GJE. METHODS: The PRISMA guidelines were used, and electronic databases such as the Web of Science, PubMed, and China National Knowledge Infrastructure were searched using the following search terms: "Gardenia jasminoides Ellis" with "central nervous system disease," "neuroprotection," "Alzheimer's disease," "Parkinson's disease," "ischemic stroke," "Epilepsy," and "major depressive disorder." The published literature up to September 2023 was searched to obtain relevant information on the application of GJE for treating CNS disorders. RESULTS: There has been an increase in research on the material formulation and mechanisms of action of GJE for treating CNS disorders, with marked effects on CNS disorder treatment in different countries and regions. We summarized the research results related to the role of GJE in vitro and in vivo via multitargeted interventions in response to the complex mechanisms of action of CNS disorders. CONCLUSION: We systematically reviewed the research progress on traditional treatment for GJE and preclinical mechanisms of CNS disorders and explored the potential of optimizing network pharmacology strategies and intestinal flora analysis to elucidate the mechanisms of action of GJE. The remarkable therapeutic efficacy of GJE, an important resource in traditional medicine, has been well documented in the literature, highlighting its significant medicinal potential.


Subject(s)
Alzheimer Disease , Depressive Disorder, Major , Gardenia , Parkinson Disease , Humans , Gardenia/chemistry , Alzheimer Disease/drug therapy , Neuroprotection
12.
Food Chem X ; 22: 101446, 2024 Jun 30.
Article in English | MEDLINE | ID: mdl-38846795

ABSTRACT

The bitter and astringent taste and miscellaneous smell of vine tea prevent its further development. In this study, we used a processing technology that mimics yellow tea to improve the flavor of vine tea and revealed its internal reasons through metabolomics. Sensory evaluation showed the yellowing process for 6-12 h reduced the bitterness and astringency significantly, and enriched the aroma. The improvement of taste was mainly related to the down-regulation of anthocyanins (54.83-97.38%), the hydrolysis of gallated catechins (34.80-47.81%) and flavonol glycosides (18.56-44.96%), and the subsequent accumulation of d-glucose (33.68-78.04%) and gallic acid (220.96-252.09%). For aroma, increase of total volatile metabolite content (23.88-25.44%) and key compounds like geraniol (239.32-275.21%) induced the changes. These results identified the positive effects of yellowing process on improvements in vine tea flavor and the key compounds that contribute to these changes.

13.
J Ethnopharmacol ; 325: 117810, 2024 May 10.
Article in English | MEDLINE | ID: mdl-38266948

ABSTRACT

ETHNOPHARMACOLOGICAL RELEVANCE: Vine Tea (VT, Ampelopsis grossedentata), boasts a venerable tradition in China, with a recorded consumption history exceeding 1200 years. Predominantly utilized by ethnic groups in southwest China, this herbal tea is celebrated for its multifaceted therapeutic attributes. Traditionally, VT has been employed to alleviate heat and remove toxins, exhibit anti-inflammatory properties, soothe sore throats, lower blood pressure, and fortify bones and muscles. In the realm of functional foods derived from plant resources, VT has garnered attention for its potential in crafting anti-fatigue beverages or foods, attributed to its promising efficacy and minimal side effects. Currently, in accordance with the Food Safety Standards set forth by the Monitoring and Evaluation Department of the National Health and Family Planning Commission in China, VT serves as a raw material in various beverages. AIM OF THE STUDY: VT has an anti-fatigue or similar effect in folk. However, the underlying molecular mechanisms contributing to VT's anti-fatigue effects remain elusive. This study endeavors to investigate the influence of Vine Tea Aqueous Extract (VTE) on fatigue mitigation and to elucidate its operative mechanisms, with the objective of developing VTE as a functional beverage. MATERIALS AND METHODS: The preparation of VTE involved heat extraction and freeze-drying processes, followed by the identification of its metabolites using UPLC-QTOF-MS to ascertain the chemical composition of VTE. A fatigue model was established using a forced swimming test in mice. Potential molecular targets were identified through network pharmacology, transcriptome analysis, and molecular docking. Furthermore, RT-PCR and Western blot techniques were employed to assess mRNA and protein expressions related to the AMPK and FoxO pathways. RESULTS: VTE significantly prolonged the duration of swimming time in an exhaustive swimming test in a dose-dependent manner, while simultaneously reducing the concentrations of blood lactic acid (LA), lactate dehydrogenase (LDH), serum urea nitrogen (SUN), and creatine kinase (CK). Notably, the performance of the high-dose VTE group surpassed that of the well-recognized ginsenoside. VTE demonstrated a regulatory effect akin to ginsenoside on the AMPK energy metabolism pathway and induced downregulation in the expression of Gadd45α, Cdkn1a, FOXO1, and Fbxo32 genes, suggesting an enhancement in skeletal muscle mass. These findings indicate that VTE can improve energy metabolism and muscle mass concurrently. CONCLUSIONS: VTE exhibits significant anti-fatigue effects, and its mechanism is intricately linked to the modulation of the AMPK and FoxO pathways. Crucially, no caffeine or other addictive substances with known side effects were detected in VTE. Consequently, vine tea shows substantial promise as a natural resource for the development of anti-fatigue beverages within the food industry.


Subject(s)
Ampelopsis , Ginsenosides , Mice , Animals , Ampelopsis/chemistry , Ampelopsis/metabolism , AMP-Activated Protein Kinases/metabolism , Ginsenosides/therapeutic use , Molecular Docking Simulation , Fatigue/drug therapy , Tea , Muscles
14.
Eur J Protistol ; 93: 126061, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38394997

ABSTRACT

Recent progress in high-throughput sequencing technologies has dramatically increased availability of genome data for prokaryotes and eukaryotes. Dinoflagellates have distinct chromosomes and a huge genome size, which make their genomic analysis complicated. Here, we reviewed the nuclear genomes of core dinoflagellates, focusing on the genome and cell size. Till now, the genome sizes of several dinoflagellates (more than 25) have been measured by certain methods (e.g., flow cytometry), showing a range of 3-250 pg of genomic DNA per cell. In contrast to their relatively small cell size, their genomes are huge (about 1-80 times the human haploid genome). In the present study, we collected the genome and cell size data of dinoflagellates and compared their relationships. We found that dinoflagellate genome size exhibits a positive correlation with cell size. On the other hand, we recognized that the genome size is not correlated with phylogenetic relatedness. These may be caused by genome duplication, increased gene copy number, repetitive non-coding DNA, transposon expansion, horizontal gene transfer, organelle-to-nucleus gene transfer, and/or mRNA reintegration into the genome. Ultimate verification of these factors as potential causative mechanisms would require sequencing of more dinoflagellate genomes in the future.


Subject(s)
Dinoflagellida , Humans , Phylogeny , Dinoflagellida/genetics , Genome/genetics , Biological Evolution , DNA
15.
Ann Clin Lab Sci ; 54(1): 26-34, 2024 Jan.
Article in English | MEDLINE | ID: mdl-38514058

ABSTRACT

OBJECTIVE: This study aimed to investigate the roles of nuclear factor-kappa B p65 (NF-[Formula: see text]B p65) and tumor necrosis factor-α (TNF-α) in cell apoptosis occurring in the fetal membranes of pregnant women who experience preterm premature rupture of membranes (PPROM). METHODS: This was a case-control study involving 57 pregnant women who delivered in the obstetric department of Affiliated Loudi Hospital, Hengyang Medical School, University of South China, from June 2021 to June 2022. Samples of fetal membrane tissue were collected from pregnant women with PPROM (n=27) and pregnant women who had normal deliveries (control group; n=30). The membrane tissue morphology of both groups was observed, and the expression of NF-[Formula: see text]B p65, p-NF-[Formula: see text]B p65, TNF-α, and caspase-3 was detected. Apoptosis in fetal membranes was examined. RESULTS: Morphological evaluation of the fetal membrane tissues obtained from patients with PPROM revealed an abnormal structure with a thin collagen fiber layer and cells with a largely vacuolar cytoplasm. There was a positive correlation between the expression of p-NF-[Formula: see text]B p65/NF-[Formula: see text]B p65 and cell apoptosis (r1 =0.89, R2 =0.805, P=0.00). Furthermore, TNF-α was positively correlated with fetal membrane cell apoptosis (r2 =0.93, R2=0.881, P=0.00). CONCLUSION: NF-[Formula: see text]B p65 is involved in the occurrence of PPROM by promoting the expression of TNF-α, which upregulates caspase-3 to cause apoptosis of fetal membrane cells.


Subject(s)
Apoptosis , Extraembryonic Membranes , Fetal Membranes, Premature Rupture , Transcription Factor RelA , Tumor Necrosis Factor-alpha , Female , Humans , Pregnancy , Case-Control Studies , Caspase 3/metabolism , Extraembryonic Membranes/metabolism , Extraembryonic Membranes/pathology , Fetal Membranes, Premature Rupture/metabolism , Tumor Necrosis Factor-alpha/metabolism , Transcription Factor RelA/metabolism , Adult
16.
Florence Nightingale J Nurs ; 31(1): 33-41, 2023 Feb.
Article in English | MEDLINE | ID: mdl-36751715

ABSTRACT

AIM: This study aimed to investigate the relationship among clinical nursing teachers' perceived stress, job stress, and teaching self-efficacy and to identify important predictors of clinical nursing teachers' teaching self-efficacy. METHOD: A cross-sectional study was designed. Data were collected from May 2019 to January 2020, and 205 clinical nursing teachers were recruited from the Department of Nursing in Taiwan. Data were collected for the Perceived Stress Scale, Job Content Questionnaire, and Clinical Nursing Teacher Self-Efficacy Scale. Descriptive statistics, independent t-test, Pearson's correlation, and multiple/stepwise linear regressions were used for analysis. RESULTS: Perceived stress and work stress are related to clinical nursing teachers' teaching self-efficacy. Multiple regression analysis showed that perceived stress and three dimensions of job stress (workload, job control, and work-related social support) were identified as significant predictors of teaching self-efficacy, explaining 16.6% of the total variance. Workload was the strongest predictor of teaching self-efficacy, explaining 5.5% of the variance, while perceived stress, job control, and work-related social support accounted for 2.7%, 4.1%, and 1.7% of the variance, respectively. CONCLUSION: Perceived stress and job stress were identified as predictors of teaching self-efficacy of clinical nursing teachers. Managers can formulate self-efficacy improvement and decompression plans for clinical nursing teachers to improve teaching self-efficacy.

17.
J Agric Food Chem ; 71(1): 815-824, 2023 Jan 11.
Article in English | MEDLINE | ID: mdl-36538656

ABSTRACT

To reduce safety issues of ginseng products caused by excessive pesticide levels, this paper systematically elucidates the transfer rules of pesticides during processing by calculating the transfer rates and processing factors (PFs). The common methods of ginseng processing (water extraction, alcohol extraction, concentration, water extraction and alcohol precipitation, vacuum drying, freeze drying, spray drying) and 30 pesticides frequently occurring in ginseng were used as research objects. The results indicate that the pesticide residues in alcohol extract are much higher than those in water extract. During water extraction and alcohol precipitation, 93.2% of pesticides are transferred to the upper ethanol solution. Besides, drying could reduce the total amount but increase the concentration of pesticide residues. Water extraction-concentration-spray drying (PF ranges from 0.01 to 0.36) and alcohol extraction-concentration-vacuum drying (PF ranges from 1.10 to 3.70) are the processing methods with the lowest and highest pesticide processing factors, respectively.


Subject(s)
Panax , Pesticide Residues , Pesticides , Pesticide Residues/analysis , Panax/chemistry , Pesticides/analysis
18.
Cell Cycle ; 22(7): 841-857, 2023 04.
Article in English | MEDLINE | ID: mdl-36536539

ABSTRACT

Rab-interacting lysosomal protein - like 2 (RILPL2) has been reported to be associated with prognosis and tumor biological functions in breast cancer and endometrial carcinoma. However, its expression and functional role in non-small cell lung cancer (NSCLC) remain unclear. The expression and clinical data of lung adenocarcinoma (LUAD) and lung squamous carcinoma (LUSC) were downloaded from the TCGA database. The expression of RILPL2 in NSCLC cell lines was verified by the Western blot. We used online databases and bioinformatics analysis tools to explore its prognostic value, potential biological functions, and correlations with tumor immune microenvironment.The expression of RILPL2 was significantly lower in NSCLC compared with adjacent normal tissues. Low RILPL2 expression was associated with worse overall survival (OS) in NSCLC. The GO analysis showed RILPL2 was comprehensively involved in immune activity. RILPL2 expression was significantly positively correlated with the infiltration levels of B cells, CD8+T cells, CD4+T cells, macrophages, neutrophils, dendritic cells (P < 0.001), and it was also significantly positively correlated with programmed cell death ligand 1 (PD-L1/CD274) (P < 0.001). High RILPL2 expression could predict better immunotherapy response and prognosis in the immunotherapy cohort. The GSEA analysis showed low RILPL2 expression was associated with glycolysis process in LUAD, which was verified in vitro.These results showed RILPL2 expression was correlated with prognosis, tumor microenvironment, and immunotherapy response in NSCLC. Besides, RILPL2 may regulate glycolysis in LUAD.


Subject(s)
Adenocarcinoma of Lung , Carcinoma, Non-Small-Cell Lung , Lung Neoplasms , Humans , Carcinoma, Non-Small-Cell Lung/genetics , Carcinoma, Non-Small-Cell Lung/pathology , Lung Neoplasms/genetics , Lung Neoplasms/pathology , Tumor Microenvironment , Prognosis , Adenocarcinoma of Lung/genetics , Adenocarcinoma of Lung/pathology
19.
Children (Basel) ; 10(11)2023 Nov 17.
Article in English | MEDLINE | ID: mdl-38002913

ABSTRACT

Bronchopulmonary dysplasia (BPD) is a major respiratory condition mainly affecting premature infants. Although its occurrence is global, risk factors may differ regionally. This study, involving 3111 infants with birth weight ≤ 1500 gm or gestational age (GA) < 30 weeks, aimed to identify risk factors for BPD and BPD/mortality in Taiwan using data from the Taiwan Neonatal Network. The BPD criteria were based on the National Institute of Child Health and Human Development standards. Average GA was 27.5 weeks, with 23.7% classified as small for GA (SGA). Multivariate analysis highlighted low GA, low birth weight, and other perinatal factors as significant risk indicators for BPD. For moderate-to-severe BPD, additional risk factors included male gender and SGA, endotracheal intubation (ETT) or cardiopulmonary cerebral resuscitation (CPCR) in initial resuscitation. In the moderate-to-severe BPD/death group, SGA and ETT or CPCR in initial resuscitation remained the only additional risk factors. The study pinpoints male gender, SGA and ETT or CPCR as key risk factors for moderate-to-severe BPD/death in low-birth-weight infants in Taiwan, offering a basis for focused interventions and further research.

20.
Florence Nightingale J Nurs ; 30(3): 217-223, 2022 Oct.
Article in English | MEDLINE | ID: mdl-36106802

ABSTRACT

AIM: The aim of this study was to explore the factors that affect exercise motivation in patients with Parkinson's disease. METHODS: Data collected in Taiwan from March 2016 to January 2017. Using convenience sampling, a total of 49 participants were recruited, and participants who usually regularly exercise ≥ 150 minutes per week. Using the 8-item Parkinson's Disease Questionnaire (PDQ-8), Geriatric Depression Scale (GDS), Unified Parkinson's Disease Rating Scale part II - III (UPDRS part II - III), Fatigue Severity Scale (FSS), Pittsburg Sleep Quality Index (PSQI), and Hospital Anxiety Scale (HAS). Descriptive statistics, Pearson correlation analysis, and multiple linear regression analysis were adopted for data analysis. RESULTS: Pearson correlation analysis showed L-Dopa dosage, UPDRS part II - III, FSS, PSQI, GDS-15, Hospital Anxiety Scale, and PDQ-8 were significantly correlated with exercise motivation. Fatigue was the strongest factor related to exercise motivation and explained 42.52% of the total variances; moreover, motor ability and activity of daily living explained 24.6% and 12.0% of the total variances, respectively. CONCLUSION: Motor ability, the activity of daily living and fatigue were related factors of Parkinson's disease patients' exercise motivation.

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