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1.
Journal of Army Medical University ; (semimonthly): 249-256, 2024.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-1017554

RESUMEN

Objective To explore the effect of myotubularin-related protein 6(MTMR6)on the invasion of hepatocellular carcinoma cell line HepG2 and the potential molecular mechanism.Methods By analyzing the sequencing results of liver cancer tissues and adjacent tissues in Gene Expression Omnibus(GEO)database,MTMR6 gene was screened out,and Spearman analysis was used to analyze the correlation of MTMR6 and pathway in the Cancer Genome Atlas(TCGA)database.Finally,the interaction between MTMR6 and signaling pathway proteins was analyzed with Genemania database.Then the expression of MTMR6 in human normal liver cell line LO-2 and hepatoma cell lines Huh-7 and HepG2 were measured and compared among the cell lines.Then HepG2 cells was selected as the study object.After MTMR6 gene was knocked down or over-expressed in HepG2 cells,Transwell assay was employed to observe invasion ability,and Western blotting was adopted to detect the expression of MTMR6,PI3K,p-PI3K,AKT,p-AKT,mTOR,p-mTOR MMP-2 and MMP-9.Results The expression of MTMR6 was significantly higher in the hepatocellular carcinoma tissues than the paracancer tissues,and it was in a positive linear correlation with PI3K/AKT/mTOR signaling pathway(P<0.01),showing interaction with PI3K,AKT and mTOR.The expression level of MTMR6 was significantly higher in the HepG2 cells than the LO-2 and Huh-7 cells(P<0.01).Over-expression of MTMR6 obviously enhanced invasion ability(P<0.01),while its knockdown decreased the ability(P<0.01)in HepG2 cells.Knockdown of MTMR6 gene also resulted in decreased phosphorylation of PI3K,AKT and mTOR,and expression levels of MMP-2 and MMP-9(P<0.01),while over-expression of MTMR6 promoted the phosphorylation of PI3K,AKT and mTOR,and up-regulated the expression of MMP-2 and MMP-9(P<0.01).In addition,LY294002(a specific PI3K inhibitor)treatment could block the PI3K/AKT/mTOR pathway and down-regulate the expression of MMP-2 and MMP-9(P<0.01),but had no effect on MTMR6 expression.Conclusion MTMR6 may promote the invasion of hepatoma cells through activation of PI3K/AKT/mTOR signaling pathway.

2.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-1019485

RESUMEN

Objective:To explore the experience and learning curve of single-line suspension suction rod-assisted hybrid cavity-building thyroid surgery via the oral vestibular approach.Methods:Clinical data of 138 patients undergoing single-line suspension suction rod-assisted hybrid cavity-building thyroid surgery via oral vestibular approach from Sep. 2019 to Dec. 2021 in the Department of Thyroid and Breast Surgery of Affiliated Hospital of North Sichuan Medical College were retrospectively analyzed. The cumulative sum (CUSUM) method and best-fit curve analysis were used to compare the differences in each index such as operative time, intraoperative bleeding, number of lymph nodes cleared in the central region and postoperative related complications at various stages of the learning curve.Results:All 138 patients underwent single-line suspension rod-assisted hybrid cavity-building thyroid surgery via the oral vestibular approach, and one patient was converted to open surgery due to large intraoperative bleeding in the mass. There were 14 males and 124 females, mean age (36.07±8.49) years (20-55 years), thyroid tumor size (7.74±6.49) mm (2.4-50mm), 5 cases underwent Subtotal thyroidectomy, 129 cases underwent Unilateral lobectomy + lymph node dissection in the middle region, and 4 cases total thyroidectomy + central zone lymph node dissection. The number of surgical cases corresponding to the apex of the CUSUM learning curve was 45, and the learning curve was divided into two stages: the learning improvement stage (1-45 cases) and the mastery stage (46-138 cases). The operative time, intraoperative bleeding, postoperative hospital stay, and chin numbness were all lower in the proficiency period than in the learning and training period ( P<0.05), and the number of lymph nodes cleared in the central region was larger than that in the learning and improvement stage ( P<0.05), while the differences in other indexes between the two stages were not statistically significant ( P>0.05) . Conclusion:The single-line suspension suction rod-assisted hybrid cavity-building thyroid surgery via the oral vestibular approach has clinical application value and is worth promoting, and the number of surgical cases to be accumulated to master this technique is 45.

3.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-1008076

RESUMEN

The fungal bioluminescence pathway (FBP) is a metabolic pathway responsible for the generation of bioluminescence derived from fungi. This pathway utilizes caffeic acid as the substrate, generating a high-energy intermediate, and the decomposition of which yields green fluorescence with a wavelength of approximately 520 nm. The FBP is evolutionally conserved in luminescent fungal groups. Unlike other bioluminescent systems, the FBP is particularly suitable for engineering applications in eukaryotic organisms, especially in plants. Currently, metabolically engineered luminescent plants are able to emit visible light to illuminate its surroundings, which can be visualized clearly in the dark. The fungal bioluminescent system could be explored in various applications in molecular biology, biosensors and glowing ornamental plants, and even green lighting along city streets.


Asunto(s)
Luminiscencia , Luz , Fluorescencia , Eucariontes , Luz Verde
4.
Chinese Herbal Medicines ; (4): 13-26, 2024.
Artículo en Inglés | WPRIM (Pacífico Occidental) | ID: wpr-1010744

RESUMEN

Medicinal plants are a valuable source of essential medicines and herbal products for healthcare and disease therapy. Compared with chemical synthesis and extraction, the biosynthesis of natural products is a very promising alternative for the successful conservation of medicinal plants, and its rapid development will greatly facilitate the conservation and sustainable utilization of medicinal plants. Here, we summarize the advances in strategies and methods concerning the biosynthesis and production of natural products of medicinal plants. The strategies and methods mainly include genetic engineering, plant cell culture engineering, metabolic engineering, and synthetic biology based on multiple "OMICS" technologies, with paradigms for the biosynthesis of terpenoids and alkaloids. We also highlight the biosynthetic approaches and discuss progress in the production of some valuable natural products, exemplifying compounds such as vindoline (alkaloid), artemisinin and paclitaxel (terpenoids), to illustrate the power of biotechnology in medicinal plants.

5.
Acta Psychol (Amst) ; 237: 103951, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37279622

RESUMEN

This study complements the stream of psychology studies on the effects of an individual's intuition on strategic decisions and how it shapes behavioral tendencies by extending how these effects evolve social entrepreneurship orientation in social entrepreneurship. Theoretically, we establish the nexus between relative intuition and social entrepreneurship orientation as well as the moderating roles of exploratory and exploitative learning and personal identity. Empirical validation of these nexuses was based on a cross-section of 276 certified social enterprises in China. The findings indicate that social entrepreneurs' relative intuition has a positive association with social entrepreneurship orientation. Exploratory and exploitative learning positively mediate the nexus between relative intuition and social entrepreneurship orientation. In addition, personal identity positively moderates the effects of exploratory and exploitative learning on social entrepreneurship orientation. Subsequently, we found that the link between relative intuition and social entrepreneurship orientation strengthens as the social entrepreneurs' personal identity increases. In this light, we identify relative intuition as the foundation of exploratory and exploratory learning for the development of social entrepreneurship orientation. Similarly, we shed light on how personal identity positively facilitates the roles of these factors by arousing dedication to the processes/stages of the pursuit of social entrepreneurship orientation goal attainment.


Asunto(s)
Emprendimiento , Intuición , Humanos , Autoimagen , Aprendizaje , Logro
6.
Environ Res ; 216(Pt 1): 114462, 2023 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-36191617

RESUMEN

Fe/S-bearing erdite flocculant has been proven to be effective in the precipitation of heavy metals from real electroplating wastewater, with the only drawback being the huge production of sludge. This sludge was rich in Fe/S/Zn/Cu/Ni and refractory to be recycled due to the extractant pollution by free Fe and the dissolution of sulphide. Herein, a multistep separation method was developed to dissolve sulphide and separate Fe prior to Zn/Cu/Ni. Results showed that more than 92% sludge was dissolved as Fe/Zn/Cu/Ni-rich leachate after the sludge was leached by nitric acid, with the rest of the remaining undissolved elemental sulphurs. When the leachate was directly extracted by using commercially extractant Acorga M5640 and Di-(2-ethylhexyl) phosphoric acid (P204), Fe was complexed by the phosphate group of the extractant. The Fe was effectively removed prior to Zn/Cu/Ni to avoid the extractant pollution. The Fe removal efficiency was only 38.34% without sucrose, but it rose to 99.94% with the addition of 0.5 g sucrose. The added sucrose reacted with nitrate to consume H+, which showed a similar rate to the H+ release from Fe hydrolysis. Thereafter, the Fe hydrolysis was continued to remove, the Fe at a high level. The removed Fe was in the form of high-purified hematite nanorod with a diameter and length of 300-600 nm and 0.5-2.5 µm, respectively. After Fe removal, Cu/Zn/Ni was extracted by using Acorga M5640 and P204 to form three halite, including a mixture of copper sulphate hydrate and bonattite (96.8% CuSO4·H2O/CuSO4·3H2O), gunningite (97.5% ZnSO4·H2O) and dwornikite (97.9% NiSO4·H2O). The rest of the solution was neutralised by lime water to remove sulphate as gypsum (95.9% CaSO4) to meet the discharge standard of the electroplating industry. In summary, the recycling efficiency of Fe/Cu/Zn/Ni from the sludge reached 94.4%, 92.6%, 94.7% and 95.3%, which provided an alternative strategy to resource utilise Fe/S-bearing solid waste.


Asunto(s)
Metales Pesados , Aguas del Alcantarillado , Galvanoplastia , Sulfuros , Zinc , Sacarosa
7.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-981558

RESUMEN

The brain-computer interface (BCI) based on motor imagery electroencephalography (MI-EEG) enables direct information interaction between the human brain and external devices. In this paper, a multi-scale EEG feature extraction convolutional neural network model based on time series data enhancement is proposed for decoding MI-EEG signals. First, an EEG signals augmentation method was proposed that could increase the information content of training samples without changing the length of the time series, while retaining its original features completely. Then, multiple holistic and detailed features of the EEG data were adaptively extracted by multi-scale convolution module, and the features were fused and filtered by parallel residual module and channel attention. Finally, classification results were output by a fully connected network. The application experimental results on the BCI Competition IV 2a and 2b datasets showed that the proposed model achieved an average classification accuracy of 91.87% and 87.85% for the motor imagery task, respectively, which had high accuracy and strong robustness compared with existing baseline models. The proposed model does not require complex signals pre-processing operations and has the advantage of multi-scale feature extraction, which has high practical application value.


Asunto(s)
Humanos , Factores de Tiempo , Encéfalo , Electroencefalografía , Imágenes en Psicoterapia , Redes Neurales de la Computación
8.
J Environ Manage ; 329: 117101, 2023 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-36566727

RESUMEN

Electroplating sludge was a hazardous waste comprised of heavy metals and other Fe/Al/Ca/Si impurities, and produced massively in surface treatment industry. In the past, it was commonly purified via hydrometallurgy, chlorination and reduction calcination routes, but also blended as additive in rotary kiln, to stabilize the heavy metals in geopolymer. Herein, an alternative strategy was developed to treat a real electroplating sludge for recycling magnetic Zn-rich spinel and stabilizing Zn in calcium metasilicate glass via a facile pyrometallurgy route with the blending of emulsion mud and coal ash. The sludge contained 35.6% Zn and 0.54% Cr and then was blended with 50% emulsion mud. After calcination at 1200 °C, the product was highly dispersed, whilst octahedral ZnAlFeO4 spinel with Zn content of 40.0% were formed and separated by using magnet, in accordance with the recycling efficiency of 51.2% Zn from the electroplating sludge. But after calcination at 1400 °C, the gypsum in emulsion mud was decomposed as CaO and accelerated the dissolution of Si-bearing substance as calcium metasilicate glass for covering ZnAlFeO4 spinel, resulting in the Zn leaching of 1568 mg/L. By adding 50% Si-rich coal ash in the calcination system, more calcium metasilicate glass were generated, and then the Zn concentration in the toxic leaching test was only 12.09 mg/L. During the calcination, Cr showed similar performance to Al/Fe and involved in the spinel formation. This provided a new route to recycle Zn from Zn-rich electroplating sludge and to solidify heavy metals via calcium metasilicate glass route.


Asunto(s)
Metales Pesados , Aguas del Alcantarillado , Aguas del Alcantarillado/análisis , Ceniza del Carbón , Calcio , Galvanoplastia , Emulsiones
9.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-960704

RESUMEN

Objective To investigate the serum levels of soluble programmed death-1 (sPD-1) and soluble programmed death-ligand 1 (sPD-L1) in chronic hepatitis B (CHB) patients with clinical cure, the correlation between programmed death-1 (PD-1) and lymphocytes by flow cytometry, and the recovery of hepatitis B virus (HBV)-specific immunity. Methods A total of 26 CHB patients with clinical cure, 26 treatment-naïve CHB patients, and 26 healthy controls who were diagnosed at the outpatient service of Peking University First Hospital from January to May of 2022 were enrolled, and related clinical data and peripheral blood samples were collected. ELISA was used to measure the serum levels of sPD-1 and sPD-L1, and flow cytometry was used to measure the expression of PD-1 in peripheral blood lymphocytes. CHB patients with clinical cure were compared with the treatment-naïve CHB patients and the healthy controls. The Kruskal-Wallis H test was used for comparison of non-normally distributed continuous data between three groups, and the chi-square test was used for comparison of categorical data between groups. The Pearson correlation analysis or the Spearman correlation analysis was used to investigate the correlation between two continuous variables. Results For the 26 CHB patients with clinical cure, the mean time of antiviral therapy was 8.33 years, with entecavir as the antiviral drug. The CHB patients with clinical cure had significantly higher levels of sPD-1 and sPD-L1 than the healthy controls ( P 0.05). Conclusion The serum levels of sPD-1 and sPD-L1 in treatment-naïve CHB patients are mainly associated with exhausted CD8 + T cells in peripheral blood, while there is no significant correlation between serum sPD-1/sPD-L1 and exhausted CD8 + T cells in peripheral blood in CHB patients with clinical cure.

10.
Journal of Biomedical Engineering ; (6): 1071-1083, 2023.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-1008936

RESUMEN

The aging population and the increasing prevalence of chronic diseases in the elderly have brought a significant economic burden to families and society. The non-invasive wearable sensing system can continuously and real-time monitor important physiological signs of the human body and evaluate health status. In addition, it can provide efficient and convenient information feedback, thereby reducing the health risks caused by chronic diseases in the elderly. A wearable system for detecting physiological and behavioral signals was developed in this study. We explored the design of flexible wearable sensing technology and its application in sensing systems. The wearable system included smart hats, smart clothes, smart gloves, and smart insoles, achieving long-term continuous monitoring of physiological and motion signals. The performance of the system was verified, and the new sensing system was compared with commercial equipment. The evaluation results demonstrated that the proposed system presented a comparable performance with the existing system. In summary, the proposed flexible sensor system provides an accurate, detachable, expandable, user-friendly and comfortable solution for physiological and motion signal monitoring. It is expected to be used in remote healthcare monitoring and provide personalized information monitoring, disease prediction, and diagnosis for doctors/patients.


Asunto(s)
Humanos , Anciano , Monitoreo Fisiológico/métodos , Dispositivos Electrónicos Vestibles , Enfermedad Crónica
11.
Chinese Herbal Medicines ; (4): 369-375, 2023.
Artículo en Inglés | WPRIM (Pacífico Occidental) | ID: wpr-982517

RESUMEN

Perilla frutescens, an annual herb of the Labiatae family, has been cultivated in China for more than 2000 years. P. frutescens is the one of the first medicinal and edible plant published by the Ministry of Health. Its leaves, stems and seeds can be used as medicine and edible food. Because of the abundant nutrients and bioactive components in this plant, P. frutescens has been studied extensively in medicine, food, health care and chemical fields with great prospects for development. This paper reviews the cultivation history, chemical compositions and pharmacological activities of P. frutescens, which provides a reference for the development and utilization of P. frutescens resources.

12.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-1038358

RESUMEN

Objective @# To investigate the effect and signaling mechanism of terpinen-4-ol (T4O) on vascular oxida- tive stress injury in mice with chronic kidney disease ( CKD) .@*Methods @# A CKD mice model was prepared using high phosphorus diet combined with adenine,and the normal group was given an equal volume of saline gavage.The CKD model with low expression of SIRT1 in vivo was established by tail vein injection of lentiviral SIRT1 RNAi for the study of signaling mechanism.The administration groups were given T4O at low and high doses ( 10 mg / kg and 20 mg / kg) for 6 weeks by continuous gavage.Serum was collected to detect urea nitrogen ( BUN) and creatinine ( CRE) levels,and HE staining was used to observe the morphology of blood vessels in the thoracic aorta of mice expression. @*Results @# T4O reduced serum BUN and CRE levels in CKD mice to improve renal function,improved kidney and thoracic aortic vascular morphology,reduced vascular tissue MDA content,increased SOD content,and reduced ROS levels ; T4O intervention promoted Nrf2 nuclear translocation and upregulated HO-1,NQO-1 and SIRT1 protein expression ; LV-SIRT1 RNAi + T4O group was able to inhibit the effect of T4O on CKD-induced MDA and SOD levels,partially counteracting the effect of T4O in upregulating Nrf2 nuclear translocation and the protein expression levels of SIRT1,HO-1 and NQO-1.@*Conclusion @#T4O has a protective effect against oxidative stress in- jury in the thoracic aorta of CKD mice,and its molecular signaling mechanism may be related to the level of drug- regulated SIRT1 / Nrf2 cascade signaling.

13.
Front Surg ; 9: 1090199, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36684247

RESUMEN

Objective: This study aimed to investigate a new noninvasive traction method on the treatment of severe cervical kyphotic deformity. Methods: The clinical data of patients with severe cervical kyphosis (Cobb > 40°) treated in Peking University Third Hospital from March 2004 to March 2020 were retrospectively summarized. 46 cases were enrolled, comprising 27 males and 19 females. Fifteen patients underwent skull traction, and 31 patients underwent suspensory traction. Among them, seven used combined traction after one week of suspensory traction. Bedside lateral radiographs were taken every two or three days during traction. The cervical kyphosis angle was measured on lateral radiographs in and extended position at each point in time. The correction rate and evaluated Japanese Orthopedic Association (JOA) scoring for the function of the spinal cord were also measured. The data before and after the operation were compared with paired sample t-test or Wilcoxon signed-rank test. Results: No neurological deterioration occurred during the skull traction and the cervical suspensory traction. There were 12 patients with normal neurological function, and the JOA score of the other 34 patients improved from 11.5 ± 2.8 to 15.4 ± 1.8 at the end of follow up (P < 0.05). The average kyphotic Cobb angle was 66.1° ± 25.2, 28.7° ± 20.1 and 17.4° ± 25.7 pre-traction, pre-operative, and at the final follow-up, respectively (P < 0.05). The average correction rate of skull traction and suspensory traction was 34.2% and 60.6% respectively. Among these, the correction rate of patients with simple suspensory traction was 69.3%. For patients with a correction rate of less than 40% by suspensory traction, combined traction was continued, and the correction rates after suspensory traction and combined traction were 30.7% and 67.1% respectively. Conclusions: Pre-correction by cervical suspensory traction can achieve good results for severe cervical kyphotic deformity, with no wound and an easy process. Combined traction is effective for supplemental traction after suspensory traction.

14.
Front Nutr ; 9: 1076223, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36618705

RESUMEN

γ-aminobutyric acid (GABA) is a non-protein amino acid which naturally and widely occurs in animals, plants, and microorganisms. As the chief inhibitory neurotransmitter in the central nervous system of mammals, it has become a popular dietary supplement and has promising application in food industry. The current article reviews the most recent literature regarding the physiological functions, preparation methods, enrichment methods, metabolic pathways, and applications of GABA. This review sheds light on developing GABA-enriched plant varieties and food products, and provides insights for efficient production of GABA through synthetic biology approaches.

15.
Chinese Journal of Dermatology ; (12): 706-709, 2022.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-957715

RESUMEN

Objective:To detect mutations in a pedigree containing two brothers with oculocutaneous albinism (OCA) by whole-exome sequencing and Sanger sequencing.Methods:Clinical data were collected from a pedigree with OCA, and DNA was extracted from peripheral blood samples obtained from the proband and other family members. The whole-exome coding region of the proband was directly sequenced by whole-exome sequencing technology to identify potential pathogenic mutations, and Sanger sequencing was conducted to verify the gene mutations.Results:Both the proband and his younger brother presented with generalized white skin, golden-yellow hair, bilateral nystagmus, photophobia, translucent iris, conjunctival congestion, and refractive errors of both eyes. The proband′s parents, grandparents, maternal grandparents, and children were all phenotypically normal, and his parents′ marriage was non-consanguineous. Three heterozygous mutations were identified in the OCA2 gene of both the proband and his younger brother, including a nonsense mutation c.1290T>A, and 2 missense mutations c.1363A>G and c.1204T>C. The mutation c.1204T>C has not been previously reported, and was a novel gene mutation in the OCA2 gene. In addition, 1 heterozygous mutation c.1204T>C was identified in the OCA2 gene in the proband′s father and daughter, 2 heterozygous mutations c.1290T>A and c.1363A>G were found in the OCA2 gene in the proband′s mother, and 1 heterozygous mutation c.1290T>A was identified in the OCA2 gene in the proband′s son and the daughter of the proband′s younger brother.Conclusions:Three gene mutations were identified in the OCA2 gene in the 2 patients with OCA, and the nonsense mutation c.1290T>A may be the pathogenic mutation causing the clinical phenotype of this family. These findings expand the pathogenic mutational spectrum of the OCA gene.

16.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-939616

RESUMEN

Motor imagery electroencephalogram (EEG) signals are non-stationary time series with a low signal-to-noise ratio. Therefore, the single-channel EEG analysis method is difficult to effectively describe the interaction characteristics between multi-channel signals. This paper proposed a deep learning network model based on the multi-channel attention mechanism. First, we performed time-frequency sparse decomposition on the pre-processed data, which enhanced the difference of time-frequency characteristics of EEG signals. Then we used the attention module to map the data in time and space so that the model could make full use of the data characteristics of different channels of EEG signals. Finally, the improved time-convolution network (TCN) was used for feature fusion and classification. The BCI competition IV-2a data set was used to verify the proposed algorithm. The experimental results showed that the proposed algorithm could effectively improve the classification accuracy of motor imagination EEG signals, which achieved an average accuracy of 83.03% for 9 subjects. Compared with the existing methods, the classification accuracy of EEG signals was improved. With the enhanced difference features between different motor imagery EEG data, the proposed method is important for the study of improving classifier performance.


Asunto(s)
Humanos , Algoritmos , Interfaces Cerebro-Computador , Electroencefalografía/métodos , Imágenes en Psicoterapia , Imaginación
17.
Journal of Clinical Hepatology ; (12): 1059-1063, 2022.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-924776

RESUMEN

Objective To investigate the influencing factors for direct-acting antiviral agent (DAA) therapy failure in the treatment of hepatitis C by comparing baseline clinical data and resistance-associated substitution (RAS) in sequencing data between the patients with HCV RNA reactivation after DAA therapy and the patients with successful DAA treatment. Methods A total of 13 patients from multiple centers who failed DAA therapy from November 2019 to October 2021 were enrolled as treatment failure group, and sequencing was performed for their positive serum samples. A total of 51 patients with successful DAA treatment were enrolled as control group, and baseline clinical data and sequencing results were compared between the treatment failure group and the control group. The Mann-Whitney U test was used for comparison of non-normally distributed continuous data between groups, and the chi-square test was used for comparison of categorical data between groups; univariate and multivariate logistic regression analyses were performed to calculate odds ratio ( OR ) and investigate the influencing factors for treatment failure. Results All 12 patients with complete treatment data experienced recurrence within 1 year after the end of medication. The male patients with treatment failure had significantly higher baseline total bilirubin, direct bilirubin, and creatinine than their female counterparts ( Z =-2.517, -2.440, and -2.132, P =0.010, 0.010, and 0.038), and the patients with an age of ≤55 years ( OR =5.152, 95% confidence interval [ CI ]: 1.116-23.790, P =0.036) or genotype 3b ( OR =9.726, 95% CI : 1.325-71.398, P =0.025) had a higher probability of treatment failure. There were differences in the incidence rates of major RAS mutations on three gene fragments between the treatment failure group and the treatment success group, and the common RAS mutations detected in the treatment failure group were not detected in the treatment success group. Conclusion Age, genotype, and RAS in serum virus gene sequence are influencing factors for DAA treatment failure.

18.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-934451

RESUMEN

Objective:By summarizing and analyzing the data of the National Natural Science Foundation of China (NSFC) for distinguished young scholars in the department of health science, this paper provides support and reference for the organization and management of talent projects in related institutions to better serve the growth of young talents in medical field.Methods:Based on the data of distinguished young scholars projects approved from 2011 to 2020, this paper explored the characteristics of the projects in the department of health science. Information about the research field, institution distribution, age and gender of the principle investigator, and the situation of hosted projects were analyzed, main challenges were summarized to propose possible measurements for improvement.Results:The overall funding rate of distinguished young scholars projects in the department of health science is relatively low and more competitive. The growth of medical talents takes longer, more support and further attention is needed.Conclusions:The organization of the distinguished young scholars project in health science needs to respect the characteristics and development nature of medicine, at the same time, strengthen multi-dimensional configuration and management, and create a soft environment conducive to the growth of outstanding medical talents.

19.
Chinese Journal of Nephrology ; (12): 465-473, 2021.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-911875

RESUMEN

Objective:To investigate the effects of hyperuricemia on the prognosis of IgA nephropathy (IgAN) using propensity score matching (PSM) method.Methods:IgAN patients proven by biopsy were included. PSM was used to match patients. Kaplan-Meier method was used for survival analysis, and Cox regression analysis was used to analyze the effects of hyperuricemia on IgAN prognosis. Primary outcome events were defined as death, or end-stage renal disease (dialysis, transplantation), or a decrease in estimated glomerular filtration rate (eGFR) greater than 40%. Renal outcome was defined as end-stage renal disease (dialysis, transplantation), or a decrease in eGFR greater than 40%.Results:A total of 1 454 IgAN patients were included in this study, including 850 females and 604 males. Uric acid level was (368.26±92.87) μmol/L in the males, and (277.23±92.71) μmol/L in the females. The median follow-up time was 85.00(56.10, 106.33) months. During the follow-up period, a total of 134 patients reached the primary outcome events, including 5 deaths, 24 dialysis patients, 5 kidney transplant patients, and 100 patients with eGFR decreased by more than 40%. After 1∶1 matching, 131 males and 159 females in the hyperuricemia group were successfully matched with 131 males and 159 females in the normal uric acid group, and there was no significant statistical difference in each parameter in baseline between the hyperuricemia group and normal uric acid group after matching. Kaplan-Meier survival analysis showed that either before or after matching, the incidence of primary outcome events in male or female patients with hyperuricemia was higher than those with normal uric acid, but there was no statistically significant difference in incidence of primary outcome events between female hyperuricemia group and female normal uric acid group after matching (Log-rank test, χ2=3.586, P=0.058). Cox proportional hazard regression model showed that, in the pre-match fully adjusted model, the hazard ratio ( HR) of entering primary outcome events was 2.29-fold (95% CI 1.27-4.11, P=0.006) for men with hyperuricemia and 1.85-fold (95% CI 1.01-3.37, P=0.045) for women with hyperuricemia compared with those with normal uric acid. In the post-match fully adjusted model, the HR of entering primary outcome events was 2.41-fold (95% CI 1.18-4.93, P=0.016) for men with hyperuricemia and 1.83-fold (95% CI 0.91-3.67, P=0.091) for women with hyperuricemia compared with those with normal uric acid. In the pre-match fully adjusted model, the HR of entering renal outcome events was 2.68-fold (95% CI 1.47-4.88, P=0.001) for men with hyperuricemia and 1.81-fold (95% CI 0.99-3.33, P=0.056) for women with hyperuricemia compared with those with normal uric acid. In the post-match fully adjusted model, the HR of entering renal outcome events was 2.89-fold (95% CI 1.36-6.15, P=0.006) for men with hyperuricemia and 1.81-fold (95% CI 0.88-3.72, P=0.106) for women with hyperuricemia compared with those with normal uric acid. Conclusion:Hyperuricemia may be associated with IgAN progression, and it has a more significant effect on male IgAN patients.

20.
Journal of Clinical Hepatology ; (12): 314-317, 2021.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-873398

RESUMEN

ObjectiveTo investigate the virologic response to direct-acting antiviral (DAA) therapy and the changes in liver stiffness measurement (LSM), fibrosis-4 (FIB-4), and aspartate aminotransferase-to-platelet ratio index (APRI) after treatment in chronic hepatitis C (CHC) patients with different alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels at baseline in a real-world setting. MethodsCHC patients who attended the outpatient service of Department of Infectious Diseases, Peking University First Hospital, from December 2017 to May 2020 were enrolled, and virologic response rate was calculated. The Wilcoxon rank-sum test was used to compare LSM, FIB-4, and APRI between groups at baseline and at 12 weeks after treatment, and the chi-square test was used for comparison of categorical data between groups. ResultsA total of 48 CHC patients were enrolled, among whom 33.3% had abnormal ALT or AST at baseline. Among these patients, the virologic response rate was 85.4% at week 4 of treatment and 100% at the end of treatment and at 12, 24, and 48 weeks after treatment, and there were significant changes from baseline to 12 weeks after treatment in LSM [6.1 (51-12.4) kPa vs 8.6 (5.7-16.9) kPa, Z=-1.676, P=0.043] and APRI [0.24(0.19-0.48) vs 0.42(0.23-1.17), Z=-2.050, P=0027]. From baseline to 12 weeks after treatment, the patients with abnormal ALT or AST at baseline had significant changes in LSM [89(5.6-13.1) kPa vs 14.4(8.0-28.2) kPa, Z=-1.679, P=0.047] and APRI [0.44(0.25-0.50) vs 1.29(0.99-2.09), Z=-3.427, P=0.001]. ConclusionCHC patients achieve a high sustained virologic response rate after DAA therapy, and the patients with abnormal ALT or AST at baseline tend to have more significant improvements in LSM and APRI than those without such abnormality.

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