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1.
Heliyon ; 10(5): e26727, 2024 Mar 15.
Article in English | MEDLINE | ID: mdl-38486729

ABSTRACT

Natural hyperbolic materials can confine electromagnetic waves at the nanoscale. In this study, we propose a waveguide design that combines a high quality factor (FOM) with low loss, utilizing hexagonal boron nitride and graphene and gold substrate. The waveguide consists of a dielectric rib with a graphene layer sandwiched between two hBN ribs. Numerical simulations demonstrate the existence of two guided modes in the proposed waveguide within the second reststrahlen band (1360.0 cm-1<ω < 1609.8 cm-1) of hBN. These modes are formed by coupling the hyperbolic phonon polariton (HPhP) of two hBN rib in the middle dielectric rib and are subsequently modulated by a graphene layer. Interestingly, we observe variations in four transmission parameters, namely effective length, figure of merit, device length, and propagation loss of the guided modes, with respect to the operation frequency and gate voltage. By optimizing the waveguide's geometry parameters and dielectric permittivity, the modal properties were analyzed. Simulation results indicate that optimizing the waveguide size parameters enables us to achieve a high FOM of 4.0 × 107. The proposed waveguide design offers a promising approach for designing tunable mid infrared range waveguides on photonic chips, and this concept can be extended to other 2D materials and hyperbolic materials.

2.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-999167

ABSTRACT

ObjectiveTo observe and compare the electrocardiogram index, myocardial morphology, and connexin 43 (Cx43) expression of two rat models of acute cerebral infarction (ACI) due to stasis combined with toxin complicated with cerebral-cardiac syndrome (CCS), and to provide experimental evidence for the research on the occurrence mechanism of cardiac diseases induced by ACI and the clinical diagnosis and treatment of CCS. MethodSixty SPF-grade male SD rats were randomized into six groups (n=10): normal , syndrome of stasis combined with toxin induced by carrageenin combined with dry yeast (CA/Y), multi-infarct induced by micro-embolism (ME), middle cerebral artery occlusion (MCAO), CA/Y+ME, and CA/Y+MCAO groups. The model of syndrome of stasis combined with toxin was established by intraperitoneal injection with carrageenan (CA) at 10 mg·kg-1 on the first day and subcutaneous injection with dry yeast (Y) suspension (2 mg·kg-1) on the second day of modeling. Twenty-four hours after the modeling of ACI, the electrocardiograms (ECGs) of rats in each group were collected and the number/percentage (%) of abnormal ECG was calculated. The infarct area of the brain was evaluated by 2,3,5-triphenyltetrazolium chloride (TTC) staining, and myocardial injury was assessed by hematoxylin-eosin (HE) staining. Immumohistochemical staining and Western blot were employed to determine the expression of Cx43 in the myocardium. ResultA certain number of rats in each model group presented abnormal ECG. Compared with the normal group and CA/Y group, CA/Y+MCAO group had the highest rate of abnormal ECG (P<0.01). Compared with the normal, CA/Y, ME, and CA/Y+ME groups, the CA/Y+ME and CA/Y+MCAO groups showed decreased amplitudes of P-wave and T-wave, shortened P-R interval, and extended Q-T interval, which were particularly obvious in the CA/Y+MCAO group (P<0.05, P<0.01) and in accordance with the cerebral infarction area and pathological changes. The expression of Cx43 was up-regulated in both CA/Y+ME and CA/Y+MCAO groups, especially in the CA/Y+MCAO group (P<0.01). ConclusionThe two rat models of ACI due to stasis combined with toxin complicated with CCS can be used to study the mechanism of heart diseases caused by cerebrovascular diseases and the therapeutic effects of Chinese medicines with the functions of resolving stasis and detoxifying. Moreover, the CA/Y+MCAO method has higher abnormal electrocardiogram rate, severer myocardial pathological injury, and higher expression of Cx43 protein. The models can be chosen according to specific experimental purpose.

3.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-1006285

ABSTRACT

Diabetic retinopathy(DR) and coronary heart disease(CHD) are both major chronic vascular complications that seriously jeopardize the health of the population and often occur together in clinical practice, it is of great clinical value to actively explore the association between the two in the process of disease development and methods of prevention and treatment of modern medicine and traditional Chinese medicine(TCM). According to TCM, the heart and eyes physiologically communicate with each other by taking Qi, blood and veins as bridges, blood stasis obstructing collaterals is the common TCM etiology of DR and CHD, whose mechanism involves inflammation, oxidative stress and endothelial dysfunction. Promoting blood circulation and removing blood stasis plays an important role in the same treatment for different diseases and prevention and treatment of comorbidities, possibly by inhibiting the expression of interleukin-1β(IL-1β), endothelin-1(ET-1) and hypoxia inducible factor-1α/vascular endothelial growth factor(HIF-1α/VEGF), regulating phosphatidylinositol 3-kinases/protein kinase B/mammalian target of rapamycin(PI3K/Akt/mTOR) pathway, initiating adenosine monophosphate(AMP)-activated protein kinase/silent information regulator 1(AMPK/SIRT1) and nuclear transcription factor erythroid 2-related factor 2/heme oxygenase-1(Nrf2/HO-1) signaling pathways, inhibiting Hippo/Yes-associated protein(Hippo/YAP) signaling pathway, inhibiting mitochondrial permeability transition pore and anti-platelet agglutination for treating DR and CHD, which provides a multi-component, multi-pathway and multi-target selection strategies and ideas for the prevention and treatment of DR and CHD by TCM from a biological perspective. Based on this, subsequent studies should focus on constructing clinically relevant comorbidity models, conducting multicenter prospective studies, and fully utilizing artificial intelligence technology to gain a deeper understanding of the relationship between the two diseases, so as to elucidate the mechanism of promoting blood circulation and removing blood stasis in preventing and treating panvascular diseases.

4.
J Tradit Chin Med ; 43(6): 1168-1175, 2023 Oct.
Article in English | MEDLINE | ID: mdl-37946479

ABSTRACT

OBJECTIVE: To investiage the possible mechanism underlying the effect of the Jianpi Qutan Fang (, JPQT) on Atherosclerosis (AS) which is the main pathological process of most cardiovascular diseases that affect millions of adults worldwide. METHODS: In the present study, rats were fed with a high-fat-diet (HFD) with vitamin D3 for 16 weeks and were orally administered atorvastatin treatment and different doses of JPQT. Histopathological changes and ultrastructural changes in the aorta were evaluated through hematoxylin-eosin staining and transmission electron microscopy (TEM), respectively. Suppressor of cytokine signaling 1 (SOCS1)/Janus kinase 1 (JAK1)/ signal transducer and activator of transcription 1 (STAT1) signaling pathways were detected through Western blotting. RESULTS: JPQT treatment decreased the lipid levels of triglyceride, low-density lipoprotein, and cholesterol, the inflammatory cytokine levels of interleukin 1 beta (IL-1ß), IL-6 and IL-8 in rat serum, but increased high-density lipoprotein and IL-10 serum levels. JPQT treatment ameliorated pathological changes in the aorta of AS model rats. Moreover, JPQT upregulated SOCS1 protein expression and down-regulated phosphorylated protein expression levels of p-JAK1 and p-STAT1. CONCLUSION: These results suggest that JPQT induces anti-atherosclerosis effects through anti-inflammatory and inhibiting JAK/STAT signaling pathways in HFD fed rats.


Subject(s)
Atherosclerosis , Janus Kinases , Rats , Animals , Janus Kinases/genetics , Janus Kinases/metabolism , Diet, High-Fat/adverse effects , Signal Transduction , Cytokines/genetics , Cytokines/metabolism , Atherosclerosis/drug therapy , Atherosclerosis/genetics , Endothelial Cells/metabolism , Anti-Inflammatory Agents/pharmacology , STAT3 Transcription Factor/genetics , STAT3 Transcription Factor/metabolism
5.
Langmuir ; 39(42): 14935-14944, 2023 10 24.
Article in English | MEDLINE | ID: mdl-37842927

ABSTRACT

Compared with a single semiconductor, the heterojunction formed by two different semiconductors usually has higher light utilization and better photoelectric performance. By using stable TiO2 nanotubes as the main subject, CdSe/TiO2NTs heterojunctions were synthesized by a hydrothermal method. XRD, TEM, SEM, PL, UV-vis, and EIS were used to characterize the fabricated CdSe/TiO2NTs. Under visible light irradiation, CdSe/TiO2NTs heterojunctions exhibited a higher absorption intensity and lower degree of photogenerated carrier recombination than TiO2. The electrons and holes were proven to be effectively separated in this heterojunction via theoretical calculation. Under CdSe/TiO2NTs' optimal conditions, the glucose concentrations (10-90 µM) had a linear relationship with the photocurrent value, and the detection limit was 3.1 µM. Moreover, the CdSe/TiO2NTs sensor exhibited good selectivity and stability. Based on the experimental data and theoretical calculations, its PEC sensing mechanism was also illuminated.


Subject(s)
Cadmium Compounds , Selenium Compounds , Cadmium Compounds/chemistry , Selenium Compounds/chemistry , Titanium/chemistry , Glucose
6.
Rice (N Y) ; 16(1): 25, 2023 May 16.
Article in English | MEDLINE | ID: mdl-37191779

ABSTRACT

As the pioneer of the Green Revolution in China, Guangdong province witnessed the improvement and spread of semi-dwarf Xian/Indica rice cultivars and possessed diverse rice germplasm of landrace and cultivars. A total of 517 accessions containing a core germplasm of 479 newly sequenced landraces and modern cultivars were used to reveal breeding signatures and key variations for regional genetic improvement of indica rice from Guangdong. Four subpopulations were identified in the collection, which including Ind IV as a novel subpopulation that not covered by previously released accessions. Modern cultivars of subpopulation Ind II were inferred to have less deleterious variations, especially in yield related genes. About 15 Mb genomic segments were identified as potential breeding signatures by cross-population likelihood method (XP-CLR) of modern cultivars and landraces. The selected regions spanning multiple yield related QTLs (quantitative trait locus) which identified by GWAS (genome-wide association studies) of the same population, and specific variations that fixed in modern cultivars of Ind II were characterized. This study highlights genetic differences between traditional landraces and modern cultivars, which revealed the potential molecular basis of regional genetic improvement for Guangdong indica rice from southern China.

7.
Neuropediatrics ; 54(2): 139-146, 2023 04.
Article in English | MEDLINE | ID: mdl-36473490

ABSTRACT

BACKGROUND: To explore the neural difference between children with obstructive sleep apnea (OSA) and healthy controls, together with the relation between this difference and clinical severity indicator of children with OSA. METHODS: Twenty-seven children with OSA (7.6 ± 2.5 years, apnea hypopnea index [AHI]: 9.7 ± 5.3 events/h) and 30 healthy controls (7.8 ± 2.6 years, AHI: 1.7 ± 1.2 events/h) were recruited and matched with age, gender, and handedness. All children underwent 3.0 T magnetic resonance imaging of the brain and cognitive testing evaluating. Volumetric segmentation of cortical and subcortical structures and voxel-based morphometry were performed. Pearson's correlation analysis was performed between these features of gray matter volume (GMV) and obstructive apnea index (OAI) among children with OSA. RESULTS: In the comparison of children's Wechsler test scores of full-scale intelligence quotient and verbal intelligence quotient, the OSA group was significantly lower than the control group (p < 0.05). Compared with the control group, the GMV of many brain regions in the OSA group was significantly decreased (p < 0.05). In the correlation analysis of GMV and OAI in OSA group, right inferior frontal gyrus volume was significantly negatively correlated with OAI (r = - 0.49, p = 0.02). CONCLUSION: Children with OSA presented abnormal neural activities in some brain regions and impaired cognitive functions. This finding suggests an association between the OSA and decreased GMV in children.


Subject(s)
Gray Matter , Sleep Apnea, Obstructive , Humans , Child , Gray Matter/diagnostic imaging , Gray Matter/pathology , Sleep Apnea, Obstructive/diagnostic imaging , Sleep Apnea, Obstructive/pathology , Brain/pathology , Magnetic Resonance Imaging , Cognition
8.
Int J Artif Organs ; 46(1): 3-8, 2023 Jan.
Article in English | MEDLINE | ID: mdl-36468755

ABSTRACT

OBJECTIVE: To evaluate the association between brachial artery blood velocity by color Doppler flow imaging (CDFI) and primary maturation of radio-cephalic autologous arteriovenous fistula (RC-AVF). METHODS: Clinical data from patients who underwent end-to-side cephalic-radial anastomosis were collected from December 2015 to December 2020. The anastomosis diameter (mm), blood velocity (cm/s), and brachial artery diameters (mm) 7 cm proximal to the elbow pre- and postoperation were measured by GE LOGIC-E9 ultrasound. The AVF was mature if it could be cannulated successfully and the blood flow was >200 ml/min during dialysis. RESULTS: A total of 197 patients were included in our statistical analysis. A total of 163 patients had mature AVFs, and 34 patients had poor maturity (assisted and failed maturation). There were no significant differences in the clinical characteristics, peak systolic velocity (PSV) of the brachial artery, diameter of the radial artery or cephalic vein measured by CDFI preoperatively. The diameter of the brachial artery (5.41 ± 0.77 vs 4.89 ± 0.90, p = 0.00) and the fistula anastomosis (2.79 ± 0.78 vs 2.45 ± 0.85, p = 0.02) and PSV of the brachial artery (123.58 ± 37.11 vs 89.63 ± 28.31, p = 0.00) in the mature group were higher than those in the immature group. CONCLUSION: Brachial artery PSV and increased brachial artery PSV could be used to detect RC-AVF maturation in the early stage.


Subject(s)
Arteriovenous Fistula , Arteriovenous Shunt, Surgical , Humans , Brachial Artery/surgery , Arteriovenous Shunt, Surgical/methods , Renal Dialysis/methods , Vascular Patency , Blood Flow Velocity , Radial Artery , Treatment Outcome
9.
Article in English | WPRIM (Western Pacific) | ID: wpr-1000846

ABSTRACT

Background@#and Purpose We aimed to determine the clinical features of Miller Fisher syndrome (MFS) in southern China and compare them with those presenting in other countries. @*Methods@#We collected the medical records of patients diagnosed with MFS during 2013–2016.We analyzed the age, sex, onset season, precursor events, clinical symptoms and signs, findings of nerve conduction studies (NCS), cerebrospinal fluid (CSF), therapeutic remedies, nadir time, and length of hospital stay of patients with MFS in southern China. We concurrently compared the differences between urban and rural areas and between patients with incomplete ophthalmoplegia (IO) and complete ophthalmoplegia (CO). @*Results@#The study enrolled 72 patients: 36 from rural areas and 36 from urban areas, and 50 males and 22 females. The mean age at onset was 47.72 years, and 30 (41.7%) and 21 (29.2%) patients developed MFS in spring and winter, respectively. The typical triad of ophthalmoplegia, ataxia, and areflexia was observed in 50 (69.4%) patients. A history of upper respiratory tract infection 1 week before onset was found in 52.8% of the patients, while 5.6% experienced gastrointestinal infections and 48 (73.8%) exhibited albuminocytological dissociation in the CSF study. Only 26 (36.1%) patients presented abnormalities in NCS. Moreover, restricted outward eyeball movement presented in 83.5% of the patients with classic MFS and acute ophthalmoplegia, and bilateral symmetrical ophthalmoplegia presented in 64.2%. With the exception of the higher proportion of NCS abnormalities in urban areas (47.2% vs. 25.0%), urban and rural differences were insignificant regarding sex ratio, age at onset, high-incidence season, precursor events, disease characteristics, and albuminocytological dissociation in the CSF. Furthermore, patients with CO were older than those with IO (64.53±7.69 vs. 43.19±14.40 years [mean±standard deviation], p<0.001). @*Conclusions@#The patients with MFS were mostly male and middle-aged, and most presented in winter and (especially) spring. More than half of the patients had clear precursor events, most of which were classic MFS with the typical triad. More than 70% of the patients presented albuminocytological dissociation in the CSF. NCS abnormalities were uncommon in MFS. The age at onset was lower in patients with IO than in patients with CO; bilateral symmetrical extraocular muscle paralysis was the most common symptom, and the external rectus was the most frequently involved muscle.

10.
Article in English | WPRIM (Western Pacific) | ID: wpr-999992

ABSTRACT

Liver organoids are three-dimensional cellular tissue models in which cells interact to form unique structures in culture. During the past 10 years, liver organoids with various cellular compositions, structural features, and functional properties have been described. Methods to create these advanced human cell models range from simple tissue culture techniques to complex bioengineering approaches. Liver organoid culture platforms have been used in various research fields, from modeling liver diseases to regenerative therapy. This review discusses how liver organoids are used to model disease, including hereditary liver diseases, primary liver cancer, viral hepatitis, and nonalcoholic fatty liver disease. Specifically, we focus on studies that used either of two widely adopted approaches: differentiation from pluripotent stem cells or epithelial organoids cultured from patient tissues. These approaches have enabled the generation of advanced human liver models and, more importantly, the establishment of patient-tailored models for evaluating disease phenotypes and therapeutic responses at the individual level.

11.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-996822

ABSTRACT

ObjectiveTo summarize the thinking of treatment of headache based on syndrome differentiation by reviewing the literature of materia medica in the past dynasties, so as to guide the clinical practice. MethodAll the literature of materia medica in the Chinese Medical Dictionary, involving 76 works from Han to Qing Dynasties, were searched, and the information of the herbs for treating headache was extracted. According to Chinese Materia Medica (11th Edition) and Pharmacopoeia of the People's Republic of China (2020 Edition), the nature, taste, and meridian tropism of the selected herbs were statistically analyzed, and the syndrome elements of headache were classified and counted. In addition, the contents of syndrome differentiation and treatment of headache by different herbs were extracted. ResultFrom the 76 monographs of materia medica in the past dynasties, 114 herbs for treating headache were selected. The herbs mainly had cold or warm nature, pungent or bitter taste, and tropism to the lung and live meridians. The syndrome elements of headache treated by the herbs mainly included wind attack, fire disturbance, turbid obstruction, stagnation, cold coagulation, and healthy Qi deficiency. ConclusionHeadache is mainly treated with the herbs with the effects of dispelling pathogenic wind, clearing heat and purging fire, eliminating phlegm and resolving dampness, regulating Qi movement and activating blood, warming Yang and dispelling cold, and tonifying deficiency and reinforcing healthy Qi, and the herbs are often used in combinations. Headache is treated following the principles of dispelling wind and pathogen, regulating Qi and blood, and tonifying deficiency and purging excess, which is in line with the laws of obstruction and nutrient deficiency causing pain.

12.
Chinese Journal of Nephrology ; (12): 305-311, 2023.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-994979

ABSTRACT

In recent years, with the development of metabolic reprogramming research, people have changed their understanding of the biological effects of immune cells. Under the stimulation of inflammatory response, immune cells re-regulate their metabolism and bioenergetics, provide energy and substrates for cell survival, and initiate immune effect functions. Nod-like receptor protein 3 (NLRP3) inflammasome, as an important component of the innate immune system, has been shown to sense metabolites such as uric acid and cholesterol crystals, and can be inhibited by metabolites such as ketones. It is also regulated by mitochondrial reactive oxygen species and glycolytic components (such as hexokinase). Recent studies have shown that a variety of metabolic pathways converge as effective regulators of NLRP3 inflammasome. The paper reviews the metabolic regulatory pathways and specificity of NLRP3 inflammasome activation, and its role in renal diseases.

13.
Chinese Journal of Radiology ; (12): 741-747, 2023.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-993001

ABSTRACT

Objective:To investigate the regional homogeneity (ReHo) among the major depressive disorder patients without mixed features (MDD noMF), major depressive disorder with mixed features (MMF), bipolar disorder with mixed features (BMF) and bipolar disorder patients without mixed features (BD noMF) patients, and to explore the brain activity and functional connectivity patterns of the MMF and BMF patients. Methods:This was a cross-sectional study. The MDD noMF patients (MDD noMF group), MMF patients (MMF group), BMF patients (BMF group), BD noMF patients (BD noMF group), and age-and gender-matched healthy controls (HC group) were recruited from Beijing Anding Hospital, Capital Medical University between April, 2021 and June, 2022. All the participants underwent resting-state functional MRI scanning. The ReHo values was computed with the DPABI software based on the MATLAB. Firstly, the difference in ReHo among the patients with MDD noMF, MMF, BMF, BD noMF and HC group were estimated by the analysis of covariance and the post-hoc method (LSD or Games-Howell). And then, the brain regions with significant different ReHo values were selected as the seeds to calculate the functional connectivity with the whole brain. Results:A total of 29 cases in the MDD noMF group, 24 cases in the MMF group, 26 cases in the BMF group, 29 cases in the BD noMF group, and 42 in the HC group were included. The differences in ReHo values in the left fusiform and the left precuneus of the 5 groups were statistically significant ( P<0.05). Among of them, the ReHo values of the left fusiform were lower in the MMF, BMF and BD noMF groups compared with the HC group ( P<0.05), while the ReHo values of the left precuneus in MDD noMF, MMF, BMF and BD noMF groups were higher than that in the HC group ( P<0.05). The ReHo value of the left fusiform was lower in the MMF group compared with the MDD noMF group ( P=0.001); the ReHo value of the left fusiform was lower in the BMF group compared with the MDD noMF and BD noMF groups ( P<0.05). The functional connectivity between the left fusiform and vermis, left insula, right putamen, and left medial superior frontal gyrus, and functional connectivity between the left precuneus and right superior frontal gyrus (dorsolateral) showed significant difference among the MDD noMF, MMF, BMF, BD noMF and HC groups ( P<0.05). Compared with HC group, MDD noMF, MMF, BD noMF groups showed higher functional connectivity between the left fusiform and the vermis, and MDD noMF, MMF, BMF, BD noMF group showed higher functional connectivityy between the the left fusiform and the left insula, left medial superior frontal gyrus and right putamen ( P<0.05). Compared with the MDD noMF group, the MMF, BMF and BD noMF groups showed higher functional connectivity between the left fusiform and the left insula ( P<0.05). Compared with the MDD noMF group, the BMF and BD noMF groups had higher functional connectivity between the left fusiform and the left medial superior frontal gyrus ( P<0.05). The BMF group showed higher functional connectivity of the left fusiform with the right putamen than the MDD noMF and BD noMF groups. Additonally, the BMF and BD noMF groups showed higher functional connectivity between the left precuneus and the right superior frontal gyrus (dorsolateral) than HC, MDD noMF and MMF groups ( P<0.05). Conclusions:MMF and BMF patients have local abnormalities of functional activity synchronization in the left fusiform and precuneus and abnormal functional connectivity patterns with multiple brain regions. MMF and BMF patients have specific neuroimaging features compared to MDD noMF or BD noMF patients and also share similar neuroimaging pathogenesis.

14.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-991310

ABSTRACT

Objective:To explore the application effect of multi-mode teaching guided by objective management in the standardized training of nursing students.Methods:A total of 39 standardized training nursing students from April 2019 to April 2020 in the department of oncology of a tertiary hospital were selected as the control group by cluster sampling method and they received traditional teaching; 40 standardized nursing students in the department of oncology from June 2020 to June 2021 were selected as the experimental group and the group adopted multi-mode teaching guided by objective management. The differences of theoretical and operational assessment scores, teaching satisfaction, critical thinking ability and nurse-patient communication ability between the two groups were studied. SPSS 20.0 was used for t-test and Chi-square test. Results:The scores of theoretical assessment [(86.17±3.74) vs. (83.92±4.93)] and operational assessment [(92.83±2.19) vs. (90.74±3.52)] in the experimental group were higher than those in the control group, and the differences were statistically significant ( P<0.05). The teaching satisfaction of the experimental group was higher than that of the control group [(46.10±2.96) vs. (42.67±2.45)], and the difference was statistically significant ( P<0.05). There were statistically significant differences in critical thinking, intellectual curiosity and analytical skills ( P<0.05). In terms of nurse-patient communication ability, except that there was no difference in collecting information, the rest were statistically significant( P<0.05). Conclusion:Multi-mode teaching guided by objective management can improve the theoretical and operational ability of nurses, nurse-patient communication ability, and teaching satisfaction.

15.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-991071

ABSTRACT

Objective:To investigate the relationship between n7-methylguanosine (m7G) related long non-coding RNA (lncRNA) expression and glioma prognosis, and to construct a prognosis model with m7G-related lncRNA in patients with glioma.Methods:Data related to the test set and validation set were downloaded from the Cancer and Tumor Genome Atlas (TCGA) database and the China Glioma Genome Atlas (CGGA) database. LASSO regression and random forest algorithm were used to establish the glioma prognosis model with m7G related lncRNA. Individualized risk scores were calculated using the weighted expression levels of the 12 extracted lncRNA coefficients, and test set and validation set glioma patients were categorized into high and low risk groups based on median risk score. Kaplan-Meier survival curve was drawn, the comparison method used log rank test. The efficacy of risk score in predicting the 1-, 2- and 5-year survival rate in patients with glioma was evaluated using the receiver operating characteristics (ROC) curve.Results:A total of 12 lncRNA associated with m7G were obtained, with a risk score = 1.026 × AC002454.1 + 1.086 × AC131097.4 + 1.039 × AC147651.3 + 1.01 × AGAP2-AS1 + 1.036 × CRNDE + 0.733 × GDNF-AS1 + 1.321 × HOXD-AS2 + 0.934 × LINC00641 + 1.183 × PAXIP1-AS2 + 1.258 × PVT1 + 0.909 × SOX21-AS1 + 0.754 × TTC28-AS1, with a median risk score of - 0.45 scores. Kaplan-Meier survival curve analysis result showed that the median survival time in high risk group was significantly shorter than that in low risk group (1.98 years vs. 9.51 years, log-rank χ2 = 131.78, P<0.01). ROC curve analysis result showed that the area under the curve (AUC) of risk score in predicting the 1-, 2- and 5-year survival rate in patients with glioma was 0.891, 0.923 and 0.912. In the validation set of glioma patients, Kaplan-Meier survival curve analysis result showed that the median survival time in high risk group was significantly shorter than that in low risk group (1.29 years vs. 6.88 years, log-rank χ2 = 103.27, P<0.01); ROC curve analysis result showed that the AUC of risk score in predicting the 1-, 2- and 5-year survival rate in patients with glioma was 0.724, 0.795 and 0.762. In the test set and validation set, multivariate Cox regression analysis result showed that the risk score was the independent risk factors of prognosis in patients with glioma ( HR = 1.992 and 1.247, P<0.01 or <0.05). Conclusions:A risk score model with m7G related lncRNA based on transcriptome is a novel approach to predict the prognosis of glioma patients.

16.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-990196

ABSTRACT

Objective:To construct Doctor-Nurse-Patient shared decision-making framwork for breast cancer surgery patients, so as to provide a foundation for clinical practice.Methods:The content of the shared decision-making framwork were initially constructed through systematic literature search and group discussion. From March to May 2021, 24 experts were consulted by the Delphi method, and the weight of each element would be determined by the analytic hierarchy process.Results:A total of 2 rounds of expert letter questionnaires were implemented. The authority coefficient of the experts in this study was 0.832, the Kendall coefficient of the experts in the first round was 0.130-0.261 ( P<0.01), and the Kendall coefficient of the experts in the second round was 0.130-0.272 ( P<0.01). The final shared decision-making framwork includes 5 first-level indicators, 15 second-level indicators and 52 third-level indicators. Conclusions:The Doctor-Nurse-Patient shared decision-making framwork of breast cancer surgery patients constructed in this study is scientific and practical, and provides a reference for clinical practice of shared decision-making in the future.

17.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-960922

ABSTRACT

ObjectiveTo discuss the thought of treatment of orifices in the Chinese herbal classics in the past dynasties based on the correspondence between drugs and symptoms to guide the clinical treatment based on syndrome differentiation. MethodAll the literature data of Chinese herbal classics were retrieved from the database of the Chinese Medical Dictionary, involving 76 works of Chinese herbal classics and covering representative works from the Han dynasty to the Ming and Qing dynasties. The information on Chines herbal drugs for the treatment of orifices was collected and sorted out. According to Chinese Materia Medica (11th Edition) and Pharmacopoeia of the People's Republic of China (2020 Edition), the nature, flavor, and meridian tropism of the selected Chinese herbal drugs were statistically analyzed. The pathogenesis elements in the treatment of orifices were classified and counted, and the contents of syndrome differentiation and treatment in various Chinese herbal classics were extracted. ResultIn 76 Chinese herbal classics in the past dynasties, 93 Chinese herbal drugs for the treatment of orifices were selected. The nature of drugs was mainly warm, followed by cold and mild. The flavor was mainly pungent, followed by bitter and sweet. In terms of meridian tropism, drugs mainly acted on the lung meridian, followed by stomach, heart, liver, spleen, and kidney meridians. The pathogenesis elements of orifices could be divided into six categories, i.e., wind invasion, turbid obstruction and Qi stagnation, water and dampness stagnation, blood stasis and collaterals blockage, heat and toxin damage, deficiency of vital Qi and cold coagulation. ConclusionOrifices are mainly treated with drugs effective in dispelling wind and pathogenic factors, resolving turbidity and removing stagnation, inducing diuresis and eliminating dampness, promoting blood circulation and dredging collaterals, clearing heat and purging fire, tonifying deficiency and dispelling cold, which are used in combination. Eliminating pathogenic factors and dredging, tonifying deficiency and purging excess are the main characteristics of treatment of orifices based on syndrome differentiation, which is in line with the physiological dysfunction state of orifices in losing the function, evil Qi blockage and healthy Qi deficiency.

18.
Chinese Pharmacological Bulletin ; (12): 2258-2265, 2023.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-1013970

ABSTRACT

To investigate the regulation of N6- methyladenosine ( m6A ) modification on L-type calcium channels in atrial myocytes under high hydrostatic pressure, mediated by methyltransferase-like protein 3 ( METTL3 ). Methods C57BL/6J mice were randomly assigned to the control group and the hypertension group ( treated with continuous administration of angiotensin for four weeks ). Masson staining was used to observe the fibrosis of mouse atrial tissue, while dot blot assay and Western blot were used to detect the levels of m6A, METTL3, and Cavi1 2 in the atrial tissue. A high hydrostatic pressure model was constructed using the HL-1 cell line cultured in vitro, and METTL3 was intervened to observe changes in m6A expression levels, METTL3 and Cavi1 2 levels in cells,and action potential duration ( APD ) and L-type calcium current ( I

19.
Chinese Pharmacological Bulletin ; (12): 978-985, 2023.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-1013944

ABSTRACT

Aim To discuss the mechanism of Lurong Dabu Decoction on cough variant asthma. Methods Guinea pigs were divided into normal group(CON), model group(OVA), Lurong Dabu Decoction high-dose group(HIGH),low-dose group(LOW), and dexamethasone group(DEX)at random. The CVA model was established by smoking plus injection of OVA, aluminum hydroxide solution and nebulized inhalation to stimulate cough. Gguinea pigs were dissected 24 hours after the last challenge to obtain alveolar lavage fluid(BALF)and lung tissues. Immunoadsorption(ELISA)method was applied to detect the types of inflammatory cells and the content of inflammatory cytokines in BALF; HE and Masson staining of the middle lobe of the left lung were used to observe the pathological changes in lung tissues; immunohistochemical staining was used to observe TLR4 and WNT-5A protein expression and distribution of lung tissues; the protein extracted from the upper lobe of the left lung was used to measure the level of TLR4 and WNT-5A protein in lung tissues by Western blot; immunofluorescence was employed to measure the fluorescence intensity of TLR4 and WNT-5A in lung tissues; flow cytometry was used to detect IL-4 and IFN-γ in guinea pig lung tissues. Results Lurong Dabu Decoction could improve guinea pig airway inflammation, inhibit collagen fiber deposition, reduce the content of IL-4, IL-5, and IL-13 in BALF, and inhibit the protein expression of TLR4 and WNT-5A in lung tissues and increase IFN-γ levels in lung tissues while decreasing IL-4 levels. Conclusion Lurong Dabu Decoction may inhibit the occurrence of CVA through TLR4/WNT-5A signaling pathway.

20.
Chinese Pharmacological Bulletin ; (12): 1090-1096, 2023.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-1013786

ABSTRACT

Aim To study the effect of Rubus irritans Focke extract on adipogenic differentiation of 3T3-L1 preadipocytes, and to further explore the potential mechanism of Rubus irritans Focke on adipocyte metabolism, so as to provide a new basis for the prevention and treatment of obesity. Methods Rubus irritans Focke extract was separated and prepared by MCI medium pressure chromatographic column. MTT method was used to detect cell proliferation, and oil red 0 staining and kit test was used to to detect the level of lipid accumulation. Western blot was employed to detect the expressions of peroxisome proliferator-activated receptor ¦y (PPAR7), CCAAT enhancer binding protein a (C/ EBPa), adenosine 5'-monophosphate activated protein kinase (AMPK) and phosphorylated AMPK (p-AMPK) protein. Results When the concentration of Rubus irritans Focke extract was less than 100 mg •L

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