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1.
Compr Rev Food Sci Food Saf ; 23(3): e13373, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38778547

RESUMO

The environmental challenges posed by plastic pollution have prompted the exploration of eco-friendly alternatives to disposable plastic packaging and utensils. Paper-based materials, derived from renewable resources such as wood pulp, non-wood pulp (bamboo pulp, straw pulp, reed pulp, etc.), and recycled paper fibers, are distinguished by their recyclability and biodegradability, making them promising substitutes in the field of plastic food packaging. Despite their merits, challenges like porosity, hydrophilicity, limited barrier properties, and a lack of functionality have restricted their packaging potential. To address these constraints, researchers have introduced antimicrobial agents, hydrophobic substances, and other functional components to improve both physical and functional properties. This enhancement has resulted in notable improvements in food preservation outcomes in real-world scenarios. This paper offers a comprehensive review of recent progress in hydrophobic antimicrobial paper-based materials. In addition to outlining the characteristics and functions of commonly used antimicrobial substances in food packaging, it consolidates the current research landscape and preparation techniques for hydrophobic paper. Furthermore, the paper explores the practical applications of hydrophobic antimicrobial paper-based materials in agricultural produce, meat, and seafood, as well as ready-to-eat food packaging. Finally, challenges in production, application, and recycling processes are outlined to ensure safety and efficacy, and prospects for the future development of antimicrobial hydrophobic paper-based materials are discussed. Overall, the emergence of hydrophobic antimicrobial paper-based materials stands out as a robust alternative to plastic food packaging, offering a compelling solution with superior food preservation capabilities. In the future, paper-based materials with antimicrobial and hydrophobic functionalities are expected to further enhance food safety as promising packaging materials.


Assuntos
Anti-Infecciosos , Embalagem de Alimentos , Interações Hidrofóbicas e Hidrofílicas , Papel , Embalagem de Alimentos/métodos , Anti-Infecciosos/química , Anti-Infecciosos/farmacologia , Conservação de Alimentos/métodos
2.
China Pharmacy ; (12): 1139-1144, 2024.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-1017151

RESUMO

OBJECTIVE To systematically evaluate the efficacy and safety of thalidomide combined with aclacinomycin, granulocyte colony-stimulating factor and cytarabine (CAG) regimen in the treatment of elderly patients with acute myeloid leukemia (AML). METHODS CNKI, Wanfang data, VIP, Sino Med, PubMed, Embase, the Cochrane Library and Web of Science were searched comprehensively from the inception to Aug. 27th, 2023. Randomized controlled trials (RCTs) about thalidomide combined with CAG regimen (trial group) versus CAG regimen (control group) in the treatment of elderly AML patients were collected, and RevMan 5.3 software was used for meta-analysis of included studies. RESULTS Finally, 7 RCTs were included, with a total of 601 patients, including 307 patients in the trial group and 294 patients in the control group. Meta-analysis results showed that the trial group was superior to the control group in enhancing the overall response rate [Z=4.75, P<0.000 01, OR=2.80, 95%CI (1.83,4.28)], complete remission rate [Z=2.82, P=0.005, OR=1.61, 95%CI (1.16, 2.25)], and improving platelet count [Z=2.70, P=0.007, MD=64.02, 95%CI (17.53, 110.51)], vascular endothelial growth factor [Z=13.63,P<0.000 01, MD=-65.17, 95%CI(-74.54, -55.80)], vascular endothelial growth factor receptor [Z=12.03, P< 0.000 01, MD=-499.01, 95%CI (-580.31, -417.71)] and basic fibroblast growth factor [Z=4.17, P<0.000 1,MD=-0.23, 95%CI(-0.35, -0.12)]. And there was no statistical difference between the trial group and the control group in the incidence of adverse drug reaction [Z=0.99, P=0.32, OR=0.52, 95%CI(0.14,1.89)], nausea and vomiting [Z= 1.06, P=0.29, OR=0.66, 95%CI (0.30,1.43)], constipation or diarrhea [Z=0.92, P=0.36, OR=0.65, 95%CI(0.26, 1.63)], drowsiness [Z=1.38, P=0.17, OR=0.57, 95%CI(0.26, 1.27)] or myelosuppression [Z=0.88,P=0.38,OR=0.68,95%CI(0.28, 1.62)]. CONCLUSIONS The combination of thalidomide and CAG regimen in the treatment of elderly AML patients can significantly improve clinical efficacy and has high safety.

3.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-1020785

RESUMO

Objective To explore EEG characteristics and the therapeutic effect in children with electrical status epilepticus during slow sleep(ESES).Methods The eligible ESES cases in our center from 2014 to 2020 were included.The age at diagnosis of ESES,the duration of ESES,spike wave index(SWI)during wakefulness and the distribution of spike wave during the period of ESES,age at seizure onset,the clinical syndromes and the outcomes after treatment were analyzed.The ESES cases were divided into 4 groups according to the distribution of spike wave:focal ESES,unilateral ESES,bilateral asymmetric ESES,multiple foci ESES.The SWI during the awake stage were divided into 3 groups based on the different rates:≤20%,21%~49%,≥50%.The therapeutic outcomes were classified into three groups:satisfactory response,seizure control and ineffective.Results 50 cases were included,with 32 males and 18 females.The average onset age of ESES was 6 years and 7 months,and the average duration of ESES was 28 months.A significant correlation between the distribution of ESES and the thera-peutic effects was found,bilateral asymmetric ESES had a good therapeutic effects,while multiple foci ESES showed a poor therapeutic effects.The duration of ESES was significantly correlated with therapeutic effects,and the efficacy was worse when the duration was longer than 1 year.A significant relationship between the SWI during wakefulness of ESES and the therapeutic effects was detected,the patient with SWI≤20%during wakefulness had a good therapeutic effect.There was a negative correlation between the onset age of ESES and the duration of ESES and SWI index during wakefulness.There was a positive correlation between the duration of ESES and SWI index during wakefulness.Conclusion Our results suggest that onset age,distribution,duration and SWI during wake-fulness of ESES were correlated with therapeutic outcomes,The patient with SWI≤20%during wakefulness had a good therapeutic effect and have unfavorable outcomes with ESES last more than 1 year.The earlier onset of ESES,the longer duration of ESES and higher SWI during wakefulness will be showed..

4.
Chinese Journal of Immunology ; (12): 134-137, 2024.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-1024729

RESUMO

Objective:To study the effect and molecular mechanism of BRCA2 gene on the killing of lung cancer by immune cells.Methods:siRNA was designed to reduce BRCA2 gene in lung cancer cells;BRCA2 expression was detected by qPCR and Western blot;cell growth was detected by MTT and CCK-8 methods;peripheral blood mononuclear cells were co-cultured with lung cancer cells,and GFP fluorescence was detected by enzyme labeling method.Killing efficiency of lung cancer cells was evaluated.Results:BRCA2 gene was expressed in moderate abundance in lung cancer cells A549 and H1299,and there was no significant differ-ence compared with lung epithelial cells BEAS-2B(P>0.05).When the BRCA2 gene in A549 and H1299 cells was successfully knocked down,the cell proliferation rate was significantly increased compared with control group;the killing efficiency of peripheral blood mononuclear cells to lung cancer cells A549 and H1299 were significantly higher than that of the control group;the expression of ATM,RAD51 and RAD50 were significantly reduced,while the expression of P53 protein was 7.2 times of the control group.Con-clusion:After knockdown of BRCA2 gene,peripheral blood monocytes are more effective in killing lung cancer cells.Intervention of BRCA2 and monocytes can synergistically inhibit lung cancer and regulate the expression of ATM signaling pathway molecules.

5.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-1025056

RESUMO

Objective To explore the possible mechanism of Xiebaisan in protecting against allergic asthma in rats from the perspective of host intestinal flora metabolism.Methods SPF SD rats were divided into normal group(NC group),model group(M group),and Xiebaisan group.The allergic asthma rat model was established by ovalbumin.Changes in lung histopathology were observed by HE staining.Colon contents were harvested for 16S rDNA high-throughput sequencing to assess changes in the intestinal flora structure and function.Serum and lung tissue samples were collected for non-targeted metabolomics by Ultra-high performance liquid-time-of-flight mass spectrometer.Results HE staining showed some improvement of lung histomorphology in asthmatic rats in the Xiebaisan group compared with that in the M group.16S rDNA high-throughput sequencing showed that the diversity of intestinal flora was decreased in the M group and increased in the Xiebaisan group compared with the M group,the microecosystem of intestinal was improved.Non-targeted metabolomics of serum showed regulation of amino acid metabolism and the mTOR pathway in the Xiebaisan group,and partially reversed differential metabolite expression in the M group.Non-targeted metabonomics of lung tissue samples showed regulation of carbon metabolism,vascular smooth muscle and cAMP signaling pathways in the Xiebaisan group,and partially reversed differential metabolite expression in the M group.Conclusions The protective effects of Xiebaisan on allergic asthma in rats may be related to improvement of the morphological structure of lung tissue,the diversity of intestinal flora,and regulation of mTOR,vascular smooth muscle contraction,and cAMP pathways,which affect amino acid and carbon metabolism.

6.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-1003415

RESUMO

ObjectiveTo observe the effect of earthworm protein on the expression of phosphatidylinositol 3-kinase/protein kinase B/nuclear factor E2-related factor 2 (PI3K/Akt/Nrf2) pathway in the aorta of spontaneously hypertensive rats (SHR) and explore mechanism of earthworm protein in treating hypertensive vascular endothelial dysfunction (VED). MethodTen 10-week-old Wistar Kyoto (WKY) rats and fifty SHR rats were selected for a week of adaptive feeding. WKY rats were selected as the normal group, and fifty SHR rats were randomized according to body weight into model, valsartan (8×10-3 g·kg-1·d-1), and high-, medium-, and low-dose (0.2, 0.1, 0.05 g·kg-1·d-1, respectively) earthworm protein groups. The normal and model groups were administrated with equal volume of double distilled water by gavage. During the drug intervention period, the general situations of rats in each group were observed and their blood pressure was monitored at specific time points every other week before and after administration. After 8 weeks of drug intervention, enzyme-linked immunosorbent assay was employed to measure the levels of angiotensin-Ⅱ (Ang-Ⅱ) and endothelin-1 (ET-1) in the serum of rats in each group. The corresponding kits were used to determine the levels of nitric oxide (NO), malondialdehyde (MDA), glutathione peroxidase (GPX), superoxide dismutase (SOD), and ferrous ion (Fe2+). Hematoxylin-eosin (HE) staining was employed to observe the changes in the intima of the aorta. Fluorescence quantitative polymerase chain reaction (Real-time PCR) was employed to measure the mRNA levels of PI3K, Akt, Nrf2, heme oxygenase-1 (HO-1), and glutathione peroxidase 4 (GPX4) in the aortic tissue. Western blotting was used to determine the protein levels of p-PI3K (Tyr467/199), PI3K, p-Akt (Ser473), Akt, Nrf2, HO-1, and GPX4 in the thoracic aorta. ResultCompared with the normal group, the model group had decreased body mass, increased irritability, severe endothelial damage, elevated blood pressure and serum levels of Ang-Ⅱ, ET1, MDA, and Fe2+ (P<0.01), lowered NO level (P<0.01), and down-regulated mRNA and protein levels of p-PI3K (Tyr467/199), PI3K, p-Akt (Ser473), Akt, Nrf2, HO-1, and GPX4 in the aortic tissue (P<0.01). Compared with the model group, drug intervention caused no significant change in the body mass, calmed the rats, alleviated the endothelial damage, lowered blood pressure and serum levels of Ang-Ⅱ, ET1, MDA, and Fe2+ (P<0.01), elevated the NO level (P<0.05), and up-regulated the mRNA and protein levels of p-PI3K (Tyr467/199), PI3K, p-Akt (Ser473), Akt, Nrf2, HO-1, and GPX4 (P<0.05). ConclusionThe earthworm protein can exert antihypertensive effects by ameliorating VED in SHR. Specifically, it may regulate the PI3K/Akt/Nrf2 signaling pathway to inhibit oxidative stress and ferroptosis.

7.
Altern Ther Health Med ; 29(5): 222-227, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37023320

RESUMO

Objective: To evaluate the clinical effectiveness of liposuction combined with small incision gland resection for treating gynecomastia. Methods: This study included 78 male patients with gynecomastia who received treatment at the Department of Orthopedic Surgery, the First Affiliated Hospital of Anhui Medical University, between August 2009 and June 2020. The patients were divided into two groups: the combined group (n = 39) underwent liposuction combined with small incision gland resection, while the open group (n = 39) underwent open surgical resection alone. The two groups were compared in terms of incision length, postoperative complications, postoperative scarring, and patient satisfaction. Results: Both groups showed significant improvements in appearance. However, the combined group had fewer postoperative complications, significantly better incision length, and patient satisfaction than the open group (P < .05). Conclusions: Liposuction combined with small incision gland resection is a precise, less invasive, and less complicated surgical treatment option for gynecomastia, with hidden scars and high patient satisfaction. This approach should be promoted as a preferred treatment method.


Assuntos
Ginecomastia , Lipectomia , Humanos , Masculino , Lipectomia/métodos , Ginecomastia/cirurgia , Estudos Retrospectivos , Resultado do Tratamento , Satisfação do Paciente , Complicações Pós-Operatórias/cirurgia
8.
Front Public Health ; 11: 1341871, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38259786

RESUMO

The surge in computer-based health surveillance applications, leveraging technologies like big data analytics, artificial intelligence, and the Internet of Things, aims to provide personalized and streamlined medical services. These applications encompass diverse functionalities, from portable health trackers to remote patient monitoring systems, covering aspects such as heart rate tracking, task monitoring, glucose level checking, medication reminders, and sleep pattern assessment. Despite the anticipated benefits, concerns about performance, security, and alignment with healthcare professionals' needs arise with their widespread deployment. This study introduces a Hybrid Multi-Criteria Decision Analysis (MCDA) paradigm, combining the strengths of Additive Ratio Assessment (ARAS) and Analytic Hierarchy Process (AHP), to address the intricate nature of decision-making processes. The method involves selecting and structuring criteria hierarchically, providing a detailed evaluation of application efficacy. Professional stakeholders quantify the relative importance of each criterion through pairwise comparisons, generating criteria weights using AHP. The ARAS methodology then ranks applications based on their performance concerning the weighted criteria. This approach delivers a comprehensive assessment, considering factors like real-time capabilities, surgical services, and other crucial aspects. The research results provide valuable insights for healthcare practitioners, legislators, and technologists, aiding in deciding the adoption and integration of computer-based health monitoring applications, ultimately enhancing medical services and healthcare outcomes.


Assuntos
Inteligência Artificial , Projetos de Pesquisa , Humanos , Pessoal de Saúde , Computadores , Técnicas de Apoio para a Decisão
9.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-1019411

RESUMO

Objective:To analyze the risk factors of hypoparathyroidism after thyroid cancer surgery.Methods:The clinical data of 430 patients who underwent total thyroidectomy and central lymph node dissection due to thyroid cancer from Jan. 2021 to Dec. 2021 in the First Ward of Head and Neck Surgery of Sichuan Cancer Hospital were collected. They were divided into two groups according to their parathyroid hormone levels at day 1 and 6 months after surgery: temporary hypoparathyroidism group ( n = 174) and permanent hypoparathyroidism group ( n = 11). and patients with normal parathyroid function were selected as control group (256 cases on postoperative day 1 and 419 cases on postoperative month 6). Gender, age, body mass index, tumor diameter, invasion, central lymph node dissection, parathyroid transplantation, Hashimoto’s thyroiditis, and lymph node dissection in lateral neck region were monitored. The suspicious risk factors of hypoparathyroidism were evaluated by χ2 test and multivariate logistic regression analysis. Results:Univariate analysis showed that women (86.21% vs 77.34%, χ2 = 5.73, P = 0.022) and parathyroid autotransplantation (44.83% vs 28.91%, χ2 = 11.49, P = 0.001) were associated with postoperative transient hypoparathyroidism. The posterior capsule of tumor invasion (81.82% vs 45.11%, χ2 = 5.81, P = 0.016) was associated with postoperative hypoparathyroidism.Multivariate analysis showed that the independent risk factors of transient hypoparathyroidism were female ( P=0.028, OR=1.870), the largest diameter of tumor ( P=0.043, OR=1.595), extravasation of tumor ( P=0.018, OR=1.587), and parathyroid transplantation ( P=0.001, OR=1.966). The independent risk factor of permanent parathyroidism was the posterior capsule of tumor invasion ( P=0.046, OR=4.658) . Conclusions:Female, the largest tumor diameter, tumor invasion and parathyroid transplantation are independent risk factors for transient hypoparathyroidism after total thyroidectomy. The posterior capsule of tumor invasion is an independent risk factor for permanent hypoparathyroidism after total thyroidectomy.

10.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-1038483

RESUMO

Objective @#To analyze the effect of miR⁃148b⁃3p on the proliferation of keloid derived fibroblasts. @*Methods @#The expression levels of miR⁃148b⁃3p and SPARC in human keloid derived fibroblasts (HKF) and normal human fibroblasts (NFS) were analyzed by real time PCR. The expression level of SPARC protein was detected by Western blot. The effects of miR⁃148b⁃3p and SPARC on HKF proliferation were analyzed by CCK⁃8 method the luciferase reporter plasmid was constructed. The targeted binding site of miR⁃148b⁃3p and the target gene was analyzed by luciferase reporter gene method.@*Results @#miR⁃148b⁃3p was low expressed in HKF and SPARC was high expressed in HKF. Transfection of miR⁃148b⁃3p in HKF cells could down regulate the expression of SPARC and inhibit cell proliferation. Online analysis software predicted that miR⁃148b⁃3p could target the 3 ′⁃ UTR binding SPARC ; The results of dual luciferase reporter gene further confirmed that miR⁃148b⁃3p could target the 3 ′⁃ UTR of SPARC. Transfection of SPARC eukaryotic expression plasmid into HKF transfected with miR⁃148b⁃3p could counteract the effect of miR⁃148b⁃3p and restore cell proliferation. @*Conclusion @# miR⁃148b⁃3p can inhibit the proliferation of HKF by targeting the 3 ′⁃ UTR of SPARC and inhibiting its expression.

11.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-994701

RESUMO

Objective:To investigate the levels of knowledge, attitudes and practice of general practitioners on potentially inappropriate medication(PIM)in the elders in Shanxi Province and to explore its relevant factors.Methods:A cross-sectional survey on knowledge, attitudes and practice of general practitioners on PIM in the elders was conducted from January to February 2021. A self-designed questionnaire was used for the survey, which included the basic information of general practitioners and the knowledge, attitudes and practice of elderly PIM. The convenient sampling method was used to select 16 primary, secondary and tertiary hospitals from the general practice alliance units in Shanxi Province, and 257 general practitioners in the selected hospital were recruited as the research objects. The related factors were investigated by univariate regression and multiple stepwise linear regression analyses.Results:A total of 257 questionnaires were distributed, and 248 valid questionnaires were recovered, with an effective rate of 96.5%. The scores of elderly PIM knowledge, attitudes and behavior of 248 general practitioners were (31.4±9.2), (32.9±4.6) and (34.9±8.3), respectively, with the scoring rates of 62.8% (31.4/50.0), 82.3% (32.9/40.0) and 69.8% (34.9/50.0). The total score was (99.2±16.3), and the total score rate was 70.9% (99.2/140.0). There was a statistically significant difference in the total score of elderly PIM knowledge, attitudes and practice among general practitioners with different educational background, work units, professional title, awareness level of PIM and needs for PIM training( F=6.14,4.39 and 5.38, t=2.97 and 2.62, all P<0.05). Multivariate analysis showed that general practitioners with undergraduate and graduate education and higher professional titles had better knowledge, attitudes and practice of PIM ( t=2.69, 2.98 and 2.36, all P<0.05), and general practitioners without knowledge of PIM and no needs for PIM training had worse knowledge, attitudes and practice of PIM ( t=-2.96 and -2.09, all P<0.05). Conclusions:The knowledge, attitudes and behavior intervention of general practitioners on elderly PIM needs to be improved. It is necessary to strengthen the elderly PIM knowledge and skill training for general practitioners with low educational background, lower professional titles without awareness and training of PIM.

12.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-981810

RESUMO

OBJECTIVE@#To explore the clinical characteristics and genetic basis of a child with Mental retardation autosomal dominant 51 (MRD51).@*METHODS@#A child with MRD51 who was hospitalized at Guangzhou Women and Children's Medical Center on March 4, 2022 was selected as the study subject. Clinical data of the child was collected. Peripheral blood samples of the child and her parents were collected and subjected to whole exome sequencing (WES). Candidate variants were verified by Sanger sequencing and bioinformatic analysis.@*RESULTS@#The child, a 5-year-and-3-month-old girl, had manifested autism spectrum disorder (ASD), mental retardation (MR), recurrent febrile convulsions and facial dysmorphism. WES revealed that she has harbored a novel heterozygous variant of c.142G>T (p.Glu48Ter) in the KMT5B gene. Sanger sequencing confirmed that neither of her parents has carried the same variant. The variant has not been recorded in the ClinVar, OMIM and HGMD, ESP, ExAC and 1000 Genomes databases. Analysis with online software including Mutation Taster, GERP++ and CADD indicated it to be pathogenic. Prediction with SWISS-MODEL online software suggested that the variant may have a significant impact on the structure of KMT5B protein. Based on the guidelines from the American College of Medical Genetics and Genomics (ACMG), the variant was predicted to be pathogenic.@*CONCLUSION@#The c.142G>T (p.Glu48Ter) variant of the KMT5B gene probably underlay the MRD51 in this child. Above finding has expanded the spectrum of KMT5B gene mutations and provided a reference for clinical diagnosis and genetic counseling for this family.


Assuntos
Humanos , Feminino , Pré-Escolar , Deficiência Intelectual/genética , Transtorno do Espectro Autista/genética , Mutação
13.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-1009291

RESUMO

OBJECTIVE@#To explore the genetic basis for a child featuring global developmental disorder with epilepsy.@*METHODS@#A child who had presented at Guangzhou Women and Children's Medical Center in July 2022 was selected as the study subject. Clinical data was collected. Potential variant was detected by whole exome sequencing (WES). Candidate variant was validated by Sanger sequencing and bioinformatic analysis.@*RESULTS@#The child, a three-year-old ethnic Zhuang Chinese girl, had presented with global developmental disorder and epilepsy, for which rehabilitation therapy was ineffective. Genetic testing revealed that she has harbored a homozygous c.821T>C (p.Leu274Pro) missense variant of the PIGW gene, for which both of her parents and sister were heterozygous carriers. Based on the guidelines from the American College of Medical Genetics and Genomics (ACMG), the variant was classified as variant of uncertain significance.@*CONCLUSION@#The homozygous c.821T>C (p.Leu274Pro) variant of the PIGW gene probably underlay the onset of disease in this child. Above finding has enriched the mutational spectrum of the PIGW gene.


Assuntos
Pré-Escolar , Feminino , Humanos , Biologia Computacional , Deficiências do Desenvolvimento , Epilepsia/genética , Testes Genéticos , Homozigoto
14.
Neuroscience Bulletin ; (6): 29-40, 2023.
Artigo em Inglês | WPRIM (Pacífico Ocidental) | ID: wpr-971535

RESUMO

Fear memory contextualization is critical for selecting adaptive behavior to survive. Contextual fear conditioning (CFC) is a classical model for elucidating related underlying neuronal circuits. The primary visual cortex (V1) is the primary cortical region for contextual visual inputs, but its role in CFC is poorly understood. Here, our experiments demonstrated that bilateral inactivation of V1 in mice impaired CFC retrieval, and both CFC learning and extinction increased the turnover rate of axonal boutons in V1. The frequency of neuronal Ca2+ activity decreased after CFC learning, while CFC extinction reversed the decrease and raised it to the naïve level. Contrary to control mice, the frequency of neuronal Ca2+ activity increased after CFC learning in microglia-depleted mice and was maintained after CFC extinction, indicating that microglial depletion alters CFC learning and the frequency response pattern of extinction-induced Ca2+ activity. These findings reveal a critical role of microglia in neocortical information processing in V1, and suggest potential approaches for cellular-based manipulation of acquired fear memory.


Assuntos
Camundongos , Animais , Córtex Visual Primário , Extinção Psicológica/fisiologia , Aprendizagem/fisiologia , Medo/fisiologia , Hipocampo/fisiologia
15.
Front Psychol ; 13: 1036569, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36337553

RESUMO

With the development of China's higher education, China has become increasingly popular as an education destination for international students. To explore the rationale and the influencing factors for them to attend Chinese universities, this research adopted a questionnaire survey and interviews with international students from a top university in China. The data were analyzed from four aspects: home countries' push factors, China's pull factors, university attractiveness factors and personal choice factors. The findings show that university attractiveness factors are more significant than the China's pull factors and the home countries push factors; China's pull factors have significant influence on the university attractiveness factors; For students from different regions, the factors of China's pull, home country's push and university attractiveness play significantly different role in affecting their choice of university, with Asian students much more affected than those from other parts of the world. Besides, individual subjective norms and individual value choices also affect students' choices to study abroad.

16.
Front Psychol ; 13: 890493, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36033003

RESUMO

High Impact Educational Practices (HIPs) are effectively educational practices that have an important impact on student learning and development. The purpose of this study is to investigate the impact of different types of high-impact educational activities on students' learning outcomes. The data comes from the 2019 "tracking research survey on learning and development of Chinese college students," in which undergraduates from 39 Chinese colleges and universities participated. This study first clarified the concept and classification of high-impact educational activities, and then used multiple linear regression analysis to analyze the impact of three types of high-impact educational activities, including extended learning activities, research-related activities, and social practice activities, on students' learning gains. It's found that most Chinese college students do not perform well on HIPs, while the "Double First-Class" university students engage more than other colleges. Participating in HIPs has a significant impact on students' knowledge, ability and values, especially on the latter two. This study provides valuable enlightenment for universities on how to promote students' participation in high impact educational activities and improve the quality of higher education.

17.
Bioengineered ; 13(1): 1013-1024, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34974800

RESUMO

The present research aimed to elucidate a convenient, safe and economic approach to induce the growth of endogenous bone tissue and bone regeneration. S-UNL-E was prepared using reverse-phase evaporation, and scutellarin encapsulation was subsequently compared. Meanwhile, the optimal preparation scheme was developed using an orthogonal method, and the particle size was determined using laser light scattering. In osteoblasts cultured in vitro, methyl thiazolyl tetrazolium (MTT), alkaline phosphatase (ALP) staining and alizarin red staining were used to detect the osteogenic effects of S-UNL-E. The results indicated that the optimal process conditions for S-UNL-E included mass ratios of phospholipid-cholesterol, phospholipid-breviscapine, phospholipid-sodium cholate, and phospholipid-stearamide were 2:1, 15:1, 7:1 and 7:1, respectively, and the mass of ethylenediamine tetramethylphosphonic acid (EDTMP) was 30 mg. The average particle size of S-UNL-E was 156.67 ± 1.76 nm, and Zeta potential was -28.77 ± 0.66 mv. S-UNL-E substantially increased the expression of ALP osteoblasts, elevated the content of osteocalcin protein and promoted the formation of mineralized nodules. Cells in the S-UNL-E group were densely distributed with integrated cell structure, and the actin filaments were clear and obvious. The findings demonstrated that S-UNL-E greatly promoted the differentiation and maturation of osteoblasts, and S-UNL-E (2.5 × 108) produced the most favorable effect in differentiation promotion. In conclusion, the present study successfully constructed an S-UNL-E material characterized by high encapsulation and high stability, which could effectively promote osteogenic differentiation and bone formation.


Assuntos
Citoesqueleto de Actina/metabolismo , Fosfatase Alcalina/metabolismo , Apigenina/farmacologia , Glucuronatos/farmacologia , Osteoblastos/citologia , Osteocalcina/metabolismo , Animais , Apigenina/química , Diferenciação Celular/efeitos dos fármacos , Células Cultivadas , Composição de Medicamentos , Glucuronatos/química , Lipossomos , Nanopartículas , Osteoblastos/efeitos dos fármacos , Osteoblastos/metabolismo , Osteogênese , Tamanho da Partícula , Cultura Primária de Células , Ratos
18.
China Pharmacy ; (12): 1905-1910, 2022.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-936501

RESUMO

Malaria is a serio us and life-threatening infectious disease that has a profound impact on human life. Artemisinin is still the first-line drug for clinical antimalarial treatment recommended by the World Health Organization. The antimalarial activity of artemisinin is mainly reflected in the peroxide bridge structure. Artemisinin-based combination therapy (ACT)is the first-line treatment for malaria in many countries. ACT mainly include artemether-lumefantrine ,artesunate-amodiaquine and dihydroartemisinin- piperaquine,etc. Compared with artemisinin monotherapy ,ACT has the advantages of shortening the length of hospital stay , speeding up parasite clearance ,and saving economic costs ,etc. However ,there are still problems such as drug resistance. This article reviews the application status ,advantages and disadvantages of ACT at home and abroad in recent years ,in order to provide ideas for the subsequent screening of long-acting adjuvant antimalarial drugs in ACT and to solve the problem of drug resistance.

19.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-928432

RESUMO

OBJECTIVE@#To explore the genetic basis for a child with myopathy and cerebellar atrophy with ataxia.@*METHODS@#Clinical examinations and laboratory testing were carried out for the patient. The proband and the parents' genomic DNA was extracted from peripheral blood samples and subjected to trio whole-exome sequencing. Candidate variant was validated by Sanger sequencing.@*RESULTS@#The 1-year-and-8-month-old boy manifested motor developmental delay, ataxia, hypomyotonia, increased serum creatine kinase. Cranial MRI showed cerebellar atrophy with progressive aggravation. Genetic testing revealed that the patient has harbored compound heterozygous variants of the MSTO1 gene, namely c.13delG (p.Ala5ProfsTer68) and c.971C>T (p.Thr324Ile), which were respectively inherited from his mother and father. The former was unreported previously and was predicted to be likely pathogenic, whilst the latter has been reported previously and was predicted to be of uncertain significance.@*CONCLUSION@#The compound heterozygous c.13delG (p.Ala5ProfsTer68) and c.971C>T (p.Thr324Ile) variants probably underlay the disease in the proband. Above finding has enriched the spectrum of MSTO1 gene variants underlying mitochondrial myopathy and cerebellar atrophy with ataxia.


Assuntos
Criança , Humanos , Lactente , Masculino , Ataxia/genética , Atrofia/genética , Proteínas de Ciclo Celular/genética , Proteínas do Citoesqueleto/genética , Miopatias Mitocondriais , Mutação , Doenças Neurodegenerativas , Sequenciamento do Exoma
20.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-954368

RESUMO

Traditional Chinese Medicine (TCM) can inhibit the proliferation of leukemia cells and induce apoptosis. The signaling pathways involved mainly include PI3K/Akt pathway, MAPK signaling pathway, JAK-STAT pathway, Wnt pathway and mitochondrial pathway. Among them, the mitochondrial apoptotic pathway is affected by many key apoptotic pathways, which plays a terminal role in promoting apoptosis. At present, there is a great need for the systematic and comprehensive research on various signaling pathways and intermolecular interactions.

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