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1.
Eur J Oncol Nurs ; 73: 102692, 2024 Sep 21.
Artigo em Inglês | MEDLINE | ID: mdl-39406178

RESUMO

PURPOSE: To develop an in-depth understanding of the meaning of symptoms in the context of how women with stage I-III breast cancer in China cope with the effects of primary and adjuvant therapies for breast cancer. METHOD: A qualitative descriptive approach was used. A purposive sample of women diagnosed with stage I-III breast cancer were recruited from the "Be Resilient to Breast Cancer" study between November 2023 and March 2024. Data was collected from in person interviews using a semi-structured interview guide. Interviews were audio-recorded and transcribed verbatim. The framework analysis method was used to generate codes and themes. RESULTS: A sample of 17 women with breast cancer agreed to participate. The average age was 50.1 years (SD = 8.45), and the majority (65%) had stage III. The overarching theme was Confronting Physical and Psychological Symptoms. The four themes explaining the experience were Changed Identity, Uncertainty, Finding Meaning and Seeking Support and Solace. Changed Identity and Uncertainty reflected the challenges of coping with multiple symptoms from the treatment. The themes of Finding Meaning and Seeking Support and Solace captured how women adapted a positive perspective to cope with the experience. CONCLUSIONS: This study contributed to the evidence of the integration of the symptom experience in coping with breast cancer treatment in the context of a collectivist Chinese culture. It enhanced the understanding of the physical and psychological symptom experience of curative intent breast cancer therapy and offered insight into how women from China cope in early survivorship.

2.
BMC Gastroenterol ; 24(1): 377, 2024 Oct 24.
Artigo em Inglês | MEDLINE | ID: mdl-39448963

RESUMO

BACKGROUND: Inflammatory bowel disease (IBD) is a chronic, relapsing condition wherein biologics have improved disease prognosis but introduced elevated infection susceptibility. Vedolizumab (VDZ) demonstrates unique safety advantages; however, a comprehensive systematic comparison regarding the risk of Clostridioides difficile infection (CDI) between vedolizumab and alternative medications remains absent. METHOD: Medline, Embase, Cochrane, and clinicaltrials.gov registry were comprehensively searched. Pooled estimates of CDI proportion, incidence, pooled risk ratio between ulcerative colitis (UC) and Crohn's disease (CD), vedolizumab and other medications were calculated. Data synthesis was completed in R using the package "meta". RESULTS: Of the 338 studies initially identified, 30 met the inclusion/exclusion criteria. For CDI risk, the pooled proportion was 0.013 (95% CI 0.010-0.017), as well as the pooled proportion of serious CDI was 0.004 (95% CI 0.002-0.008). The comparative pooled risk ratios revealed: UC versus CD at 2.25 (95% CI 1.73-2.92), vedolizumab versus anti-TNF agents at 0.15 (95% CI 0.04-0.63) for UC and 1.29 (95% CI 0.41-4.04) for CD. CONCLUSION: The overall CDI risk in IBD patients exposed to vedolizumab was estimated to be 0.013. An increased risk of CDI was noted in UC patients receiving vedolizumab compared to those with CD. Vedolizumab potentially offers an advantage over anti-TNF agents for UC regarding CDI risk, but not for CD. TRIAL REGISTRATION: The study was registered on the PROSPERO registry (CRD42023465986).


Assuntos
Anticorpos Monoclonais Humanizados , Infecções por Clostridium , Fármacos Gastrointestinais , Anticorpos Monoclonais Humanizados/uso terapêutico , Anticorpos Monoclonais Humanizados/efeitos adversos , Humanos , Infecções por Clostridium/epidemiologia , Fármacos Gastrointestinais/efeitos adversos , Fármacos Gastrointestinais/uso terapêutico , Colite Ulcerativa/tratamento farmacológico , Doenças Inflamatórias Intestinais/tratamento farmacológico , Doenças Inflamatórias Intestinais/complicações , Clostridioides difficile , Doença de Crohn/tratamento farmacológico , Incidência
3.
Asian J Psychiatr ; 102: 104288, 2024 Oct 22.
Artigo em Inglês | MEDLINE | ID: mdl-39476751

RESUMO

BACKGROUND: In recent decades, depressive symptoms have intensified among Chinese adolescents, particularly those from single-parent homes, who are presumed to face heightened mental health risks. Nonetheless, economic growth, fertility policy reforms, and cultural openness have enhanced the adaptability of these adolescents, enabling them to better manage depressive symptom risks. AIM AND METHOD: This study aims to scrutinize the evolving trends of depressive symptoms and explore the related social factors among Chinese adolescents from single-parent families. We involved 109 studies by a Cross-temporal meta-analysis. RESULTS: Over the past 25 years, the prevalence of depressive symptoms in adolescents from single-parent homes has annually declined. Economic status negatively correlates with depressive symptoms in the current year and 5 years prior. Birth rate, household size negatively impact symptoms, while urbanization level inversely correlates in the present and 5 years ago. Unemployment rate shows negative correlations 5 years apart but positive in the current year. Divorce rates exhibit similar patterns, negative before and now. CONCLUSION: The above results indicate that depressive symptoms among Chinese adolescents from single-parent families present a downward trend over time with social development. Macro-level factors such as economic instability, policy dynamics, and shifting attitudes towards marriage had a correlation with depression among adolescents from single-parent families. Future studies can dig into the details of the impact on the mental health of adolescents from single-parent families.

4.
J Med Internet Res ; 26: e59061, 2024 Oct 28.
Artigo em Inglês | MEDLINE | ID: mdl-39466301

RESUMO

BACKGROUND: There are numerous symptoms related to cancer and its treatments that can affect the psychosomatic health and quality of life of patients with cancer. The use of electronic symptom management systems (ESMSs) can help patients with cancer monitor and manage their symptoms effectively, improving their health-related outcomes. However, patients' adhesion to ESMSs decreases over time, and little is known about their real experiences with them. Therefore, it is necessary to gain a deep understanding of patients' experiences with ESMSs. OBJECTIVE: The purpose of this systematic review was to synthesize qualitative studies on the experiences of patients with cancer using ESMSs. METHODS: A total of 12 electronic databases, including PubMed, Web of Science, Cochrane Library, EBSCOhost, Embase, PsycINFO, ProQuest, Scopus, Wanfang database, CNKI, CBM, and VIP, were searched to collect relevant studies from the earliest available record until January 2, 2024. Qualitative and mixed methods studies published in English or Chinese were included. The PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement checklist) and the ENTREQ (Enhancing Transparency in Reporting the Synthesis of Qualitative Research) statement were used to improve transparency in reporting the synthesis of the qualitative research. The Critical Appraisal Skills Program (CASP) checklist was used to appraise the methodological quality of the included studies, and a meta-synthesis was conducted to interpret and synthesize the findings. RESULTS: A total of 21 studies were included in the meta-synthesis. The experiences of patients with cancer using ESMSs were summarized into three major categories: (1) perceptions and attitudes toward ESMSs; (2) the value of ESMSs; and (3) barriers, requirements, and suggestions for ESMSs. Subsequently, 10 subcategories emerged from the 3 major categories. The meta-synthesis revealed that patients with cancer had both positive and negative experiences with ESMSs. In general, patients recognized the value of ESMSs in symptom assessment and management and were willing to use them, but they still encountered barriers and wanted them to be improved. CONCLUSIONS: This systematic review provides implications for developing future ESMSs that improve health-related outcomes for patients with cancer. Future research should focus on strengthening electronic equipment and technical support for ESMSs, improving their functional contents and participation forms, and developing personalized applications tailored to the specific needs and characteristics of patients with cancer. TRIAL REGISTRATION: PROSPERO CRD42023421730; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=421730.


Assuntos
Neoplasias , Humanos , Neoplasias/psicologia , Neoplasias/terapia , Pesquisa Qualitativa , Qualidade de Vida , Feminino
5.
Scand J Clin Lab Invest ; : 1-6, 2024 Sep 18.
Artigo em Inglês | MEDLINE | ID: mdl-39292735

RESUMO

Particle-enhanced turbidimetric immunoassay (PETIA) is a new measurement procedure for detecting fecal calprotectin (FC). We aimed to investigate the accuracy and clinical performance of PETIA for FC. We assessed the accuracy of PETIA for FC measurements through concordance analysis, Passing-Bablok regression and Bland-Altman analysis, using enzyme-linked immunosorbent assay (ELISA) as the reference. To evaluate the clinical performance of PETIA, the FC levels of individuals with significant and non-significant bowel diseases were compared. The receiver operating characteristic (ROC) analysis was performed to determine the appropriate cut-off value of FC detected by PETIA for discriminating subjects with significant and non-significant colorectal lesions. Of the 413 cases analyzed, 340 (82.3%) were concordant between PETIA and ELISA. No significant discordance was observed. There was a good agreement (y = -7.710+0.957x) between PETIA and ELISA for detecting FC. The FC level detected by PETIA in patients with significant bowel diseases (159.1 [31.3, 821.0] µg/g) was significantly higher than that of subjects with non-significant bowel diseases (10.3 [4.2, 38.5] µg/g) (p < 0.001). The AUC of FC for identifying significant bowel diseases detected by PETIA was 0.82 (p < 0.001). With a cut-off value of 77.6µg/g, the specificity and positive predictive value were 92.2% and 97.1%, respectively. The PETIA for FC measurement showed good clinical performance for detecting bowel diseases.

6.
Front Neurol ; 15: 1459214, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39309263

RESUMO

Objective: The objective is to elucidate the collaboration and current research status in the pediatric field of fNIRS using bibliometric analysis, and to discuss future directions. Method: Bibliometric analysis was conducted on publications related to pediatric fNIRS research published before June 2024 in the Web of Science Core Collection using VOSviewer software and R language. Results: A total of 761 documents were retrieved, published by 2,686 authors from 893 institutions across 44 countries in 239 journals. The number of publications has significantly increased since 2012. The United States is the country with the highest number of publications, University College London is the institution with the most publications, Lloyd-Fox Sarah is the author with the most publications and significant influence, and "Neurophotonics" is the journal with the most publications. The current hotspots mainly involve using fNIRS to study executive functions and autism spectrum disorders in children. Conclusion: The study provides useful reference information for researchers by analyzing publication numbers, collaborative networks, publishing journals, and research hotspots. In the future, there should be an emphasis on enhancing interdisciplinary and international collaboration to collectively dedicate efforts toward the advancement of fNIRS technology and the standardization of research.

7.
J Ethnopharmacol ; 334: 118568, 2024 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-38996949

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Hyssopus cuspidatus Boriss., a classic Uyghur medicine, is used to treat inflammatory lung diseases such as asthma. But the therapeutic effect and mechanism of the volatile oil of Hyssopus cuspidatus Boriss.(HVO) in asthma therapy remain unclear. AIM OF THE STUDY: We aim to characterize the constituents of HVO, investigate the therapeutic effect in OVA-induced allergic asthmatic mice and further explore the molecular mechanism. MATERIALS AND METHODS: In this study, we applied two-dimensional gas chromatography quadrupole time-of-flight mass spectrometry (GC × GC-QTOF MS) to identify the ingredients of HVO. We established OVA-induced asthmatic model to investigate the therapeutic effect of HVO. To further explore the potential molecular pathways, we used network pharmacology approach to perform GO and KEGG pathways enrichment, and then built an ingredient-target-pathway network to identify key molecular pathways. Finally, LPS-induced RAW 264.7 macrophages and OVA-induced asthmatic model were used to validate the potential signaling pathways. RESULTS: GC × GC-QTOF MS analysis revealed the presence of 123 compounds of HVO. The sesquiterpenes and monoterpenes are the main constituents. The in vivo study indicated that HVO suppressed OVA-induced eosinophilic infiltration in lung tissues, inhibited the elevation of IgE, IL-4, IL-5, and IL-13 levels, downregulated the expressions of phosphorylated PI3K, Akt, JNK and P38, and maintained epithelial barrier integrity via reducing the degradation of occludin, Zo-1, Zo-2, and E-cadherin. The in vitro study also revealed an inhibition of NO release and downregulation of phosphorylated PI3K, Akt, JNK and P38 levels. CONCLUSION: HVO alleviates airway inflammation in OVA-induced asthmatic mice by inhibiting PI3K/Akt/JNK/P38 signaling pathway and maintaining airway barrier integrity via reducing the degradation of occludin, Zo-1, Zo-2, and E-cadherin.


Assuntos
Asma , Óleos Voláteis , Ovalbumina , Fosfatidilinositol 3-Quinases , Proteínas Proto-Oncogênicas c-akt , Animais , Feminino , Camundongos , Antiasmáticos/farmacologia , Asma/tratamento farmacológico , Asma/induzido quimicamente , Modelos Animais de Doenças , Sistema de Sinalização das MAP Quinases/efeitos dos fármacos , Camundongos Endogâmicos BALB C , Óleos Voláteis/farmacologia , Óleos Voláteis/química , Proteínas Quinases p38 Ativadas por Mitógeno/metabolismo , Fosfatidilinositol 3-Quinases/metabolismo , Proteínas Proto-Oncogênicas c-akt/metabolismo , Pyroglyphidae/imunologia , Células RAW 264.7 , Transdução de Sinais/efeitos dos fármacos
8.
J Clin Neurosci ; 126: 154-161, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38901153

RESUMO

Medulloblastoma (MB) is a primary brain malignancy. However, updated epidemiological data and long-term outcomes are lacking.The clinical and epidemiological datasets of patients with MB in the current study were obtained from the Surveillance, Epidemiology, and End Results (SEER) databases. Joinpoint regression models were used to assess the rate of changes in the incidence, prevalence, and treatment trends in patients with MB. Cox hazard and competition risk model analyses were used to assess overall survival (OS) and cancer-specific survival (CSS).The age-adjusted incidence of MB remained relatively stable at 0.15 per 100,000 individuals in 2019. The annual percentage change (APC) of females remained stable, whereas that of males increased over time. The 20-year limited-duration prevalence of patients with MB increased significantly from 0.00016 % in 1999 to 0.00203 % in 2018. Patients aged 5-19 years accounted for 46.7 % of all age groups, and the trend for the three treatments was increased. Average annual percentage change (AAPC) for the chemotherapy group was increased in patients aged 20 + years MB [AAPC = 2.66 (95 % CI 0.93-6.31)]. Multivariate analysis revealed that OS and CSS varied significantly according to age, year of diagnosis, histology, stage, surgery, and radiotherapy. Subgroup analysis showed that chemotherapy was associated with a favorable prognosis in high-risk groups.The incidence of MB remained relatively stable, and its prevalence increased significantly. This current population-based study further identified the prognostic factors in patients with MB. Moreover, the use of chemotherapy was associated with better survival in high-risk groups.


Assuntos
Neoplasias Cerebelares , Meduloblastoma , Programa de SEER , Humanos , Meduloblastoma/mortalidade , Meduloblastoma/epidemiologia , Meduloblastoma/terapia , Feminino , Masculino , Adolescente , Criança , Pré-Escolar , Adulto Jovem , Adulto , Estudos Retrospectivos , Pessoa de Meia-Idade , Neoplasias Cerebelares/mortalidade , Neoplasias Cerebelares/epidemiologia , Neoplasias Cerebelares/terapia , Incidência , Lactente , Prevalência , Idoso
10.
PNAS Nexus ; 3(3): pgae096, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38528952

RESUMO

Dysfunctional liver regeneration following surgical resection remains a major cause of postoperative mortality and has no therapeutic options. Without targeted therapies, the current treatment paradigm relies on supportive therapy until homeostasis can be achieved. Pharmacologic acceleration of regeneration represents an alternative therapeutic avenue. Therefore, we aimed to generate a small molecule inhibitor that could accelerate liver regeneration with an emphasis on diseased models, which represent a significant portion of patients who require surgical resection and are often not studied. Utilizing a clinically approved small molecule inhibitor as a parent compound, standard medicinal chemistry approaches were utilized to generate a small molecule inhibitor targeting serine/threonine kinase 4/3 (MST1/2) with reduced off-target effects. This compound, mCLC846, was then applied to preclinical models of murine partial hepatectomy, which included models of diet-induced metabolic dysfunction-associated steatohepatitis (MASH). mCLC846 demonstrated on target inhibition of MST1/2 and reduced epidermal growth factor receptor inhibition. The inhibitory effects resulted in restored pancreatic beta-cell function and survival under diabetogenic conditions. Liver-specific cell-line exposure resulted in Yes-associated protein activation. Oral delivery of mCLC846 perioperatively resulted in accelerated murine liver regeneration and improved survival in diet-induced MASH models. Bulk transcriptional analysis of regenerating liver remnants suggested that mCLC846 enhanced the normal regenerative pathways and induced them following liver resection. Overall, pharmacological acceleration of liver regeneration with mCLC846 was feasible, had an acceptable therapeutic index, and provided a survival benefit in models of diet-induced MASH.

11.
Plant J ; 118(3): 802-822, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38305492

RESUMO

Floral patterns are unique to rice and contribute significantly to its reproductive success. SL1 encodes a C2H2 transcription factor that plays a critical role in flower development in rice, but the molecular mechanism regulated by it remains poorly understood. Here, we describe interactions of the SL1 with floral homeotic genes, SPW1, and DL in specifying floral organ identities and floral meristem fate. First, the sl1 spw1 double mutant exhibited a stamen-to-pistil transition similar to that of sl1, spw1, suggesting that SL1 and SPW1 may located in the same pathway regulating stamen development. Expression analysis revealed that SL1 is located upstream of SPW1 to maintain its high level of expression and that SPW1, in turn, activates the B-class genes OsMADS2 and OsMADS4 to suppress DL expression indirectly. Secondly, sl1 dl displayed a severe loss of floral meristem determinacy and produced amorphous tissues in the third/fourth whorl. Expression analysis revealed that the meristem identity gene OSH1 was ectopically expressed in sl1 dl in the fourth whorl, suggesting that SL1 and DL synergistically terminate the floral meristem fate. Another meristem identity gene, FON1, was significantly decreased in expression in sl1 background mutants, suggesting that SL1 may directly activate its expression to regulate floral meristem fate. Finally, molecular evidence supported the direct genomic binding of SL1 to SPW1 and FON1 and the subsequent activation of their expression. In conclusion, we present a model to illustrate the roles of SL1, SPW1, and DL in floral organ specification and regulation of floral meristem fate in rice.


Assuntos
Flores , Regulação da Expressão Gênica de Plantas , Meristema , Oryza , Proteínas de Plantas , Oryza/genética , Oryza/crescimento & desenvolvimento , Oryza/metabolismo , Meristema/genética , Meristema/crescimento & desenvolvimento , Meristema/metabolismo , Flores/genética , Flores/crescimento & desenvolvimento , Flores/metabolismo , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Fatores de Transcrição/metabolismo , Fatores de Transcrição/genética , Plantas Geneticamente Modificadas , Mutação
12.
J Ethnopharmacol ; 326: 117965, 2024 May 23.
Artigo em Inglês | MEDLINE | ID: mdl-38423410

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Scrophulariae Radix (Xuanshen [XS]) has been used for several years to treat hyperthyroidism. However, its effective substances and pharmacological mechanisms in the treatment of hyperthyroidism and thyroid hormone-induced liver and kidney injuries have not yet been elucidated. AIM OF THE STUDY: This study aimed to explore the pharmacological material basis and potential mechanism of XS therapy for hyperthyroidism and thyroid hormone-induced liver and kidney injuries based on network pharmacology prediction and experimental validation. MATERIALS AND METHODS: Based on 31 in vivo XS compounds identified using ultra-performance liquid chromatography tandem quadruple exactive orbitrap high-resolution accurate-mass spectrometry (UPLC-QE-HRMS), a network pharmacology approach was used for mechanism prediction. Systematic networks were constructed to identify the potential molecular targets, biological processes (BP), and signaling pathways. A component-target-pathway network was established. Mice were administered levothyroxine sodium through gavage for 30 d and then treated with different doses of XS extract with or without propylthiouracil (PTU) for 30 d. Blood, liver, and kidney samples were analyzed using an enzyme-linked immunosorbent assay (ELISA) and western blotting. RESULTS: A total of 31 prototypes, 60 Phase I metabolites, and 23 Phase II metabolites were tentatively identified in the plasma of rats following the oral administration of XS extract. Ninety-six potential common targets between the 31 in vivo compounds and the diseases were identified. Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis revealed that Bcl-2, BAD, JNK, p38, and ERK1/2 were the top targets. XS extract with or without PTU had the following effects: inhibition of T3/T4/fT3/fT4 caused by levothyroxine; increase of TSH levels in serum; restoration of thyroid structure; improvement of liver and kidney structure and function by elevating the activities of anti-oxidant enzymes catalase (CAT),superoxide dismutase (SOD), and glutathione peroxidase (GSH-Px); activation anti-apoptotic proteins Bcl-2; inhibition the apoptotic protein p-BAD; downregulation inflammation-related proteins p-ERK1/2, p-JNK, and p-p38; and inhibition of the aggregation of pro-inflammatory cytokines TNF-α, IL-1ß, and IL-6, as well as immune cells in the liver. CONCLUSION: XS can be used to treat hyperthyroidism and liver and kidney injuries caused by thyroid hormones through its anti-oxidant, anti-inflammatory, and anti-apoptotic properties. In addition, serum pharmacochemical analysis revealed that five active compounds, namely 4-methylcatechol, sugiol, eugenol, acetovanillone, and oleic acid, have diverse metabolic pathways in vivo and exhibit potential as effective therapeutic agents.


Assuntos
Medicamentos de Ervas Chinesas , Hipertireoidismo , Ratos , Camundongos , Animais , Antioxidantes/farmacologia , Farmacologia em Rede , Fígado , Hormônios Tireóideos/metabolismo , Hipertireoidismo/induzido quimicamente , Hipertireoidismo/tratamento farmacológico , Tiroxina , Rim/metabolismo , Proteínas Proto-Oncogênicas c-bcl-2/metabolismo , Anti-Inflamatórios/farmacologia , Medicamentos de Ervas Chinesas/farmacologia , Medicamentos de Ervas Chinesas/uso terapêutico , Medicamentos de Ervas Chinesas/metabolismo , Simulação de Acoplamento Molecular
13.
Eur J Oncol Nurs ; 68: 102507, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38219475

RESUMO

PURPOSE: The aim of this study was to examine the level of health-related quality of life (HRQOL) of lung cancer patients receiving immune checkpoint inhibitors (ICIs) and analyze its influencing factors. METHOD: A cross-sectional study was conducted. From April 2022 to March 2023, 560 lung cancer patients receiving ICIs at three medical bases in Guangzhou, China were recruited using a convenient sampling method. A general information questionnaire, the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30), the Social Support Rating Scale (SSRS) and the Medical Coping Modes Questionnaire (MCMQ) were used for collecting data on sociodemographic and clinical characteristics, HRQOL, social support and medical coping mode. A descriptive analysis was conducted to describe HRQOL. Multiple regression analysis was applied to determine the factors influencing HRQOL. RESULTS: For lung cancer patients receiving ICIs, the mean score of HRQOL was 59.21 ± 19.86. Multivariate analysis indicated that acceptance-resignation coping mode (ß = -0.37, P < 0.01), Eastern Cooperative Oncology Group (ECOG) score (ß = -0.35, P < 0.01), combination of chemotherapy and/or bevacizumab (ß = -0.14, P < 0.01), and subjective support (ß = 0.07, P = 0.04) all contributed to 42.7% of the variance in HRQOL of the patients receiving ICIs. CONCLUSIONS: It is imperative to address and resolve the HRQOL issue for lung cancer patients receiving ICIs. The findings suggest nurse practitioners should be aware of a variety of factors that influence HRQOL and provide tailored inventions to patients as early as possible to help them achieve better HRQOL.


Assuntos
Neoplasias Pulmonares , Qualidade de Vida , Humanos , Neoplasias Pulmonares/tratamento farmacológico , Inibidores de Checkpoint Imunológico , Estudos Transversais , China , Inquéritos e Questionários
14.
Acta Radiol ; 65(2): 233-240, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38017711

RESUMO

BACKGROUND: Parkinson's disease (PD) has been regarded as a disconnection syndrome with functional and structural disturbances. However, as the anatomic determinants, the structural disconnections in PD have yet to be fully elucidated. PURPOSE: To non-invasively construct structural networks based on microstructural complexity and to further investigate their potential topological abnormalities in PD given the technical superiority of diffusion kurtosis imaging (DKI) to the quantification of microstructure. MATERIAL AND METHODS: The microstructural data of gray matter in both the PD group and the healthy control (HC) group were acquired using DKI. The structural networks were constructed at the group level by a covariation approach, followed by the calculation of topological properties based on graph theory and statistical comparisons between groups. RESULTS: A total of 51 patients with PD and 50 HCs were enrolled. Individuals were matched between groups with respect to demographic characteristics (P >0.05). The constructed structural networks in both the PD and HC groups featured small-world properties. In comparison with the HC group, the PD group exhibited significantly altered global properties, with higher normalized characteristic path lengths, clustering coefficients, local efficiency values, and characteristic path lengths and lower global efficiency values (P <0.05). In terms of nodal centralities, extensive nodal disruptions were observed in patients with PD (P <0.05); these disruptions were mainly distributed in the sensorimotor network, default mode network, frontal-parietal network, visual network, and subcortical network. CONCLUSION: These findings contribute to the technical application of DKI and the elucidation of disconnection syndrome in PD.


Assuntos
Doença de Parkinson , Humanos , Doença de Parkinson/diagnóstico por imagem , Encéfalo/diagnóstico por imagem , Imageamento por Ressonância Magnética/métodos , Imagem de Tensor de Difusão , Substância Cinzenta/diagnóstico por imagem
15.
Transfusion ; 64(2): 380-387, 2024 02.
Artigo em Inglês | MEDLINE | ID: mdl-38158881

RESUMO

BACKGROUND: Little s antigen is mainly defined by a single nucleotide polymorphism at c.143C (p.Thr48) on the GYPB gene. Several variants on GYPB can alter the expression of s antigen. The aim of this study was to investigate the molecular basis of variant s antigen expression in the Chinese population. STUDY DESIGN AND METHODS: A total of 4983 whole blood samples were collected to screen the individuals with discrepant s typing results using two different monoclonal anti-s. Then, the sequence of GYPB exon 4 was analyzed by Sanger sequencing. Flow cytometry analysis was performed to quantify s antigen expression on red blood cells (RBCs). In vitro expression study was performed to verify the effect of the GYPB variants identified on the expression of s antigen. RESULTS: Four donors were identified to have discrepant s typing results. Sanger sequencing showed that three donors carried the c.173C > G variant (p.Pro58Arg) specific for sD antigen, the other one carried a novel GYPB (c.160C > T, p.Arg54Cys) variant. Flow cytometry identified a partial and weak expression of s antigen on the RBCs of the four donors. Furthermore, in vitro expression study confirmed the effect of the two variants on the s antigen expression. CONCLUSION: The results demonstrated that in addition to p.Thr48, the two extra amino acids p.Arg54 and p.Pro58 are also important for full expression of s antigen. Since the individuals with partial s antigen are at risk for the development of alloanti-s, it is important to select at least two different monoclonal anti-s for correct s typing.


Assuntos
Antígenos de Grupos Sanguíneos , Glicoforinas , Humanos , Alelos , Glicoforinas/genética , Antígenos de Grupos Sanguíneos/genética , Fenótipo , Eritrócitos/metabolismo , Sistema do Grupo Sanguíneo Rh-Hr/metabolismo
16.
Artigo em Inglês | MEDLINE | ID: mdl-37930914

RESUMO

Multivariate time series (MTS) prediction has been studied broadly, which is widely applied in real-world applications. Recently, transformer-based methods have shown the potential in this task for their strong sequence modeling ability. Despite progress, these methods pay little attention to extracting short-term information in the context, while short-term patterns play an essential role in reflecting local temporal dynamics. Moreover, we argue that there are both consistent and specific characteristics among multiple variables, which should be fully considered for MTS modeling. To this end, we propose a multiresolution transformer (MR-Transformer) for MTS prediction, modeling MTS from both the temporal and the variable resolution. Specifically, for the temporal resolution, we design a long short-term transformer. We first split the sequence into nonoverlapping segments in an adaptive way and then extract short-term patterns within segments, while long-term patterns are captured by the inherent attention mechanism. Both of them are aggregated together to capture the temporal dependencies. For the variable resolution, besides the variable-consistent features learned by long short-term transformer, we also design a temporal convolution module to capture the specific features of each variable individually. MR-Transformer enhances the MTS modeling ability by combining multiresolution features between both time steps and variables. Extensive experiments conducted on real-world time series datasets show that MR-Transformer significantly outperforms the state-of-the-art MTS prediction models. The visualization analysis also demonstrates the effectiveness of the proposed model.

17.
Aging (Albany NY) ; 15(18): 9544-9560, 2023 Sep 18.
Artigo em Inglês | MEDLINE | ID: mdl-37724890

RESUMO

Inflammation of chondrocytes plays a critical role in the occurrence and development of osteoarthritis (OA). Recent evidence indicated exosomes derived from mesenchymal stem cells (MSCs-Exos) exhibit excellent anti-inflammatory ability in many troublesome inflammatory diseases including OA. In the present study, we aimed to explore the role of human umbilical cord-derived MSCs-Exos (hUC-MSCs-Exos) in treating the inflammation of chondrocytes and its related mechanisms. Ultracentrifugation was applied to isolate hUC-MSCs-Exos from the culture supernatant of hUC-MSCs. Two OA-like in vitro inflammation models of human articular chondrocytes induced with interleukin 1ß (IL-1ß) and co-incubation with macrophage utilizing transwell cell culture inserts were both used to evaluate the anti-inflammatory effects of hUC-MSCs-Exos. The mRNA sequencing of chondrocytes after treatment and microRNA (miRNA) sequencing of hUC-MSCs-Exos were detected and analyzed for possible mechanism analysis. The results of the study confirmed that hUC-MSCs-Exos had a reversed effect of IL-1ß on chondrocytes in the expression of collagen type II alpha 1 (COL2A1) and matrix metalloproteinase 13 (MMP13). The addition of hUC-MSCs-Exos to M1 macrophages in the upper chamber showed down-regulation of IL-1ß and tumor necrosis factor α (TNF-α), up-regulation of IL-10 and arginase1 (ARG1), and reversed the gene and protein expression of COL2A1 and MMP13 of the chondrocytes seeded in the lower chamber. The results of this study confirmed the anti-inflammatory effects of hUC-MSCs-Exos in the human articular chondrocytes inflammation model. hUC-MSCs-Exos may be used as a potential cell-free treatment strategy for chondrocyte inflammation in OA.

18.
J Cancer Res Clin Oncol ; 149(15): 14071-14080, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37548774

RESUMO

BACKGROUND: Updated epidemiologic and survival data of head and neck adenoid cystic carcinoma (HNACC) are lacking. This retrospective study aimed to clarify the incidence, prevalence, and overall survival (OS) of patients with HNACC and establish relevant nomogram. METHODS: Trends in incidence, limited-duration prevalence, and relative survival (RS) rates were evaluated using data from the Surveillance, Epidemiology, and End Results (SEER) database, and annual percent change (APC) in rates was calculated using joinpoint regression. Data on age, sex, site, stage, and surgery were used in construction and validation of the nomogram. RESULTS: The study included 6474 patients; 57.7% were female and 78.6% were white. The age-adjusted incidence rates of HNACC decreased significantly from 0.41 to 0.25 per 100,000 [1975-2018; average annual percent change (AAPC): - 1.37, P < 0.001], which was dominated by the localized stage. The 20-year limited duration prevalence increased from 0.00028% to 0.00262%. The 5- and 10-year RS rates of all HNACC patients were 80.0% and 65.5%, respectively. RS rates in HNACC showed a slight increase over time, with APC values of 0.03 for 5-year (P < 0.05) and 0.13 for 10-year (P < 0.05) RS. A prognostic model was constructed. The C-indices for the training and testing sets were both 0.734. The nomogram's discrimination efficiency was evaluated using the receiver operating characteristic curve and had moderate predictive power. CONCLUSIONS: Over the past 40 years, the incidence of HNACC decreased accompanied by slightly improved survival rates. Nomogram was capable of predicting the 5- and 10-year OS rates with moderate accuracy.

19.
Am J Gastroenterol ; 118(10): 1812-1820, 2023 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-37410933

RESUMO

INTRODUCTION: To evaluate the effect of 3-dimensional (3D) imaging device on polyp and adenoma detection during colonoscopy. METHODS: In a single-blind, randomized controlled trial, participants aged 18-70 years who underwent diagnostic or screening colonoscopy were consecutively enrolled between August 2019 and May 2022. Each participant was randomized in a 1:1 ratio to undergo either 2-dimensional (2D-3D) colonoscopy or 3D-2D colonoscopy through computer-generated random numbers. Primary outcome included polyp detection rate (PDR) and adenoma detection rate (ADR), defined as the proportion of individuals with at least 1 polyp or adenoma detected during colonoscopy. The primary analysis was intention-to-treat. RESULTS: Of 1,196 participants recruited, 571 in 2D-3D group and 583 in 3D-2D group were finally included after excluding those who met the exclusion criteria. The PDR between 2D and 3D groups was separately 39.6% and 40.5% during phase 1 (odds ratio [OR] = 0.96, 95% confidence interval [CI]: 0.76-1.22, P = 0.801), whereas PDR was significantly higher in 3D group (27.7%) than that of 2D group (19.9%) during phase 2, with a 1.54-fold increase (1.17-2.02, P = 0.002). Similarly, the ADR during phase 1 between 2D (24.7%) and 3D (23.8%) groups was not significant (OR = 1.05, 0.80-1.37, P = 0.788), while ADR was significantly higher in 3D group (13.8%) than that of 2D group (9.9%) during phase 2, with a 1.45-fold increase (1.01-2.08, P = 0.041). Further subgroup analysis confirmed significantly higher PDR and ADR of 3D group during phase 2, particularly in midlevel and junior endoscopists. DISCUSSION: The 3D imaging device could improve overall PDR and ADR during colonoscopy, particularly in midlevel and junior endoscopists. Trial number: ChiCTR1900025000.


Assuntos
Adenoma , Pólipos do Colo , Neoplasias Colorretais , Humanos , Pólipos do Colo/diagnóstico por imagem , Imageamento Tridimensional , Método Simples-Cego , Colonoscopia/métodos , Adenoma/diagnóstico por imagem , Neoplasias Colorretais/diagnóstico por imagem
20.
Chem Biol Interact ; 382: 110624, 2023 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-37423554

RESUMO

Bladder cancer (BCa) is a urinary tumor with limited treatment options and high mortality. Liensinine (LIEN), a natural bisbenzylisoquinoline alkaloid, has shown excellent anti-tumor effects in numerous preclinical studies. However, the anti-BCa effect of LIEN remains unclear. To the best of our knowledge, this is the first study to investigate the molecular mechanism of LIEN in the management of BCa. First, we identified the treatment-related targets of BCa; those that repeatedly occur in more than two databases, including GeneCards, Online Mendelian Inheritance in Man, DisGeNET, Therapeutic Target Database, and Drugbank. The SwissTarget database was used to screen LIEN-related targets, and those with a probability >0 were possible LIEN targets. The prospective targets of LIEN in the treatment of BCa were then determined using a Venn diagram. Second, we discovered that the PI3K/AKT pathway and senescence mediated the anti-BCa action of LIEN by using GO and KEGG enrichment analysis to explore the function of LIEN therapeutic targets. A protein-protein interaction network was created using the String website, and six algorithms of the CytoHubba plug-in were then used in Cytoscape to assess the core targets of LIEN for the therapy of BCa. The outcomes of molecular docking and dynamics simulation demonstrated that CDK2 and CDK4 proteins were the direct targets of LIEN in the management of BCa, among which CDK2 was more stable in binding to LIEN than CDK4. Finally, in vitro experiments showed that LIEN inhibited the activity and proliferation of T24 cells. The expression of p-/AKT, CDK2, and CDK4 proteins progressively decreased, while the expression and fluorescence intensity of the senescence-related protein, γH2AX, gradually increased with increasing LIEN concentration in T24 cells. Therefore, our data suggest that LIEN may promote senescence and inhibit proliferation by inhibiting the CDK2/4 and PI3K/AKT pathways in BCa.


Assuntos
Medicamentos de Ervas Chinesas , Neoplasias da Bexiga Urinária , Humanos , Simulação de Acoplamento Molecular , Fosfatidilinositol 3-Quinases , Proteínas Proto-Oncogênicas c-akt , Neoplasias da Bexiga Urinária/tratamento farmacológico , Bases de Dados Genéticas , Quinase 2 Dependente de Ciclina , Quinase 4 Dependente de Ciclina
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