1
|
Short-term efficacy and safety of neoadjuvant pyrotinib plus taxanes for early HER2-positive breast cancer: a single-arm exploratory phase II trial. Gland Surg 2024; 13:374-382. [PMID: 38601287 PMCID: PMC11002487 DOI: 10.21037/gs-24-38] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 03/13/2024] [Indexed: 04/12/2024]
Abstract
Background The effectiveness and safety of pyrotinib have been substantiated in human epidermal growth factor receptor 2 (HER2)-positive advanced breast cancer (BC). However, the role of pyrotinib as a single HER2 blockade in neoadjuvant setting among BC patients has not been studied. The objective of this study was to evaluate the efficacy and tolerability of pyrotinib plus taxanes as a novel neoadjuvant regimen in patients with HER2-positive early or locally advanced BC. Methods In this single-arm exploratory phase II trial, patients with treatment-naïve HER2-positive BC (stage IIA-IIIC) received pyrotinib 400 mg once daily and taxanes [docetaxel 75 mg/m2 or nanoparticle albumin-bound (nab)-paclitaxel 260 mg/m2 every 3 weeks, or paclitaxel 80 mg/m2 weekly] for a total of four 21-day cycles before surgery. Efficacy assessment was based on pathological and clinical measurements. The primary endpoint of this study was the total pathological complete response (tpCR) rate. The secondary endpoints included breast pCR (bpCR) rate, investigator-assessed objective response rate (ORR) and adverse events (AEs) profiles. Results From 1 September 2021 to 30 December 2022, a total of 31 patients were enrolled. One patient was withdrawn due to unbearable skin rash after the second cycle of neoadjuvant therapy. The majority of the intention-to-treat (ITT) population was premenopausal (54.8%), had large tumors (90.3%) and metastatic nodes (58.1%) at diagnosis and hormone-receptor positive tumors (64.5%). Most participants used nab-paclitaxel (74.2%) and received mastectomy (67.7%) after neoadjuvant treatment. The tpCR and bpCR rates were 48.4% [95% confidence interval (CI): 30.8-66%] and 51.6% (95% CI: 34-69.2%), respectively. Grade ≥3 treatment-related AEs were observed in 16.1% (5/31) of the ITT population, including diarrhea (n=2, 6.5%), hand and foot numbness (n=1, 3.2%), loss of appetite (n=1, 3.2%), and skin rash (n=1, 3.2%). AE related dose reduction or pyrotinib interruption was not required. Conclusions In female patients with HER2-positive non-metastatic BC, neoadjuvant pyrotinib monotherapy plus taxanes appears to show promising clinical benefit and controllable AEs [Chinese Clinical Trial Registry (ChiCTR2100050870)]. The long-term efficacy and safety of this regime warrant further verification.
Collapse
|
2
|
The role of mitochondria-related lncRNAs in characterizing the immune landscape and supervising the prognosis of osteosarcoma. J Bone Oncol 2023; 43:100506. [PMID: 37868616 PMCID: PMC10585401 DOI: 10.1016/j.jbo.2023.100506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 09/24/2023] [Accepted: 10/03/2023] [Indexed: 10/24/2023] Open
Abstract
Mitochondrial damage is related to the functional properties of immune cells as well as to tumorigenesis and progression. Nevertheless, there is an absence concerning the systematic evaluation of mitochondria-associated lncRNAs (MALs) in the immune profile and tumor microenvironment of osteosarcoma patients. Based on transcriptomic and clinicopathological data from the TARGET database, MAL-related patterns were ascertained by consistent clustering, and gene set variation analysis of the different patterns was completed. Next, a MAL-derived scoring system was created using Cox and LASSO regression analyses and validated by Kaplan-Meier and ROC curves. The GSEA, ESTIMATE, and CIBERSORT algorithms were utilized to characterize the immune status and underlying biological functions in the different MAL score groups. MAL-derived risk scores were well stabilized and outperformed traditional clinicopathological features to reliably predict 5-year survival in osteosarcoma cohorts. Moreover, patients with increased MAL scores were observed to suffer from poorer prognosis, higher tumor purity, and an immunosuppressive microenvironment. Based on estimated half-maximal inhibitory concentrations, the low-MAL score group benefited more from gemcitabine and docetaxel, and less from thapsigargin and sunitinib compared to the high-MAL score group. Pan-cancer analysis demonstrated that six hub MALs were strongly correlated with clinical outcomes, immune subtypes, and tumor stemness indices in various common cancers. Finally, we verified the expression patterns of hub MALs in osteosarcoma with qRT-PCR. In summary, we identified the crosstalk between prognostic MALs and tumor-infiltrating immune cells in osteosarcoma, providing a potential strategy to ameliorate clinical stratification management.
Collapse
|
3
|
Natural killer cells contribute to 'hot' tumor regression in the allergic inflammatory environment. Int Immunopharmacol 2023; 123:110760. [PMID: 37549516 DOI: 10.1016/j.intimp.2023.110760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/20/2023] [Accepted: 08/01/2023] [Indexed: 08/09/2023]
Abstract
Systemic immune status influences the elimination of tumor cells. However, it remains unclear how chronic inflammation in allergic diseases affects the tumor microenvironment and tumorigenesis. To investigate tumor progression in a state of heightened allergic inflammation, we established a mouse model of allergic inflammation. We used house dust mite extract to induce a hyper-reactive systemic immune response. Additionally, we subcutaneously inoculated two types of cancer cells (CT26 and 4T1 tumors). We conducted immune profiling of the ex-vivo tumor mass using multicolor flow cytometry staining and performed dynamic analysis of peripheral cytokines to explore the significant relationship between the development of allergic inflammation and tumorigenesis. We found that mice in a state of allergic inflammation were more susceptible to developing tumors. Interestingly, the growth of T cell-inflamed was inhibited in the allergic state, while growth of non-T cell-inflamed was promoted. Further research revealed that natural killer (NK) cells with enhanced tumor-killing or immune-regulating abilities were more active in " hot " tumors. Inhibiting NK cell activity can partially alleviate the impact of allergic inflammation on tumor growth. In summary, our results suggest that NK cells play significant role in suppressing tumor growth in an allergic inflammation mouse model. This phenomenon seems to be closely linked to both the inherent characteristics of the tumor and its interaction with the immune system. The innate immune system can be mobilized to synergize with the adaptive immune system to inhibit tumor growth, which opens a new way for a tumor immunotherapy.
Collapse
|
4
|
Diagnostic value of IL-6 for patients with asthma: a meta-analysis. ALLERGY, ASTHMA, AND CLINICAL IMMUNOLOGY : OFFICIAL JOURNAL OF THE CANADIAN SOCIETY OF ALLERGY AND CLINICAL IMMUNOLOGY 2023; 19:39. [PMID: 37173781 PMCID: PMC10182700 DOI: 10.1186/s13223-023-00794-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 04/15/2023] [Indexed: 05/15/2023]
Abstract
BACKGROUND IL-6 is a pleotropic cytokine that acts as a pro-inflammatory mediator and acute-phase response inducer, but has also been reported to possess anti-inflammatory properties. The objective of this study was to assess the validity of serum IL-6 test for diagnosis of asthma. METHODS A literature search was conducted using PubMed, Embase, and Cochrane library from January 2007 to March 2021 to identify relevant studies. Eleven studies were included in this analysis, involving 1977 patients with asthma and 1591 healthy non-asthmatic controls. The meta-analysis was performed using Review Manager 5.3 software and Stata 16.0. Random effect model or fixed effect model (FEM) was used to estimate the standardized mean differences (SMDs) with 95% confidence intervals (CIs). RESULTS The meta-analysis results revealed that the serum IL-6 levels were higher in asthmatic patients than healthy non-asthmatic controls (SMD 1.31, 95% CI 0.82-1.81, P < 0.00001). IL-6 levels are significantly elevated in pediatric patients with asthma (SMD 1.58, 95% CI 0.75-2.41, P = 0.0002) and mildly elevated in adult patients with asthma (SMD 1.08, 95% CI 0.27-1.90, P = 0.009). In addition, a subgroup analysis of asthma disease status showed that IL-6 levels were increased in stable (SMD 0.69, 95% CI 0.28-1.09, P = 0.009) and exacerbation asthma (SMD 2.15, 95% CI 1.79-2.52, P < 0.00001) patients. CONCLUSION The results of this meta-analysis suggest that serum IL-6 levels were significantly elevated in asthmatic patients as compared to normal population. IL-6 levels can be used as an auxiliary indicator to distinguish individuals with asthma from healthy non-asthmatic controls.
Collapse
|
5
|
Quantitative proteomics profiling of plasma from children with asthma. Int Immunopharmacol 2023; 119:110249. [PMID: 37146352 DOI: 10.1016/j.intimp.2023.110249] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/07/2023]
Abstract
A lack of validated blood diagnostic markers presents an obstacle to asthma control. The present study sought to profile the plasma proteins of children with asthma and to determine potential biomarkers. Plasma samples from children in acute exacerbation (n = 4), in clinical remission (n = 4), and from healthy children (n = 4, control) were analyzed using a tandem mass tag (TMT)-labeling quantitative proteomics and the candidate biomarkers were validated using liquid chromatography-parallel reaction monitoring (PRM)/mass spectrometry (MS) with enzyme-linked immunosorbent assay (ELISA). We identified 347 proteins with differential expression between groups: 125 (50 upregulated, 75 downregulated) between acute exacerbation and control, 142 (72 upregulated, 70 downregulated) between clinical remission and control, and 55 (22 upregulated, 33 downregulated) between acute and remission groups (all between-group fold changes > 1.2; P < 0.05 by Student's t-test). Gene ontology analysis implicated differentially expressed proteins among children with asthma in immune response, the extracellular region, and protein binding. Further, KEGG pathway analysis of differentially expressed proteins identified complement and coagulation cascades and Staphylococcus aureus infection pathways as having the highest protein aggregation. Our analyses of protein interactions identified important node proteins, particularly KRT10. Among 11 differentially expressed proteins, seven proteins (IgHD, IgHG4, AACT, IgHA1, SAA, HBB, and HBA1) were verified through PRM/MS. Protein levels of AACT, IgA, SAA, and HBB were verified through ELISA and may be useful as biomarkers to identify individuals with asthma. In conclusion, our study presents a novel comprehensive analysis of changes in plasma proteins in children with asthma and identifies a panel for accessory diagnosis of pediatric asthma.
Collapse
|
6
|
Chromosome-level genomic assembly and allergome inference reveal novel allergens in Tyrophagus putrescentiae. Allergy 2023. [PMID: 36695039 DOI: 10.1111/all.15656] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 11/20/2022] [Accepted: 01/13/2023] [Indexed: 01/26/2023]
|
7
|
Neutrophil-lymphocyte ratios in blood to distinguish children with asthma exacerbation from healthy subjects. Int J Immunopathol Pharmacol 2023; 37:3946320221149849. [PMID: 36598755 PMCID: PMC9830092 DOI: 10.1177/03946320221149849] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
OBJECTIVE Airway inflammation is a prominent feature of asthma and may play an important role in disease pathophysiology. Despite the increasing incidence of asthma worldwide, reliable diagnostic biomarkers are lacking and widely lead to asthma misdiagnosis. Neutrophil-lymphocyte ratio (NLR) is a biomarker of systemic inflammation, in addition to NLR-alanine aminotransferase ratio (NAR) and NLR-albumin ratio (NBR). The aim of this study was to evaluate associations of NLR, NAR, and NBR with diagnosis of childhood asthma to determine if they can aid clinical childhood asthma diagnosis. METHODS This retrospective case-control study included 89 children with asthma and 53 healthy children from the Wuxi Children's Hospital affiliated with Nanjing Medical University. We applied various statistical tests to the dataset: Mann-Whitney U test to compare characteristics of the case and control groups; chi-squared test to compare categorical variables; Kruskal-Wallis test to compare statistical differences of asthma indicators among groups; receiver operating characteristic (ROC) curves to assess the diagnostic value of indices; and Spearman correlation analysis to evaluate relationships between NLR and lactate dehydrogenase, albumin, aspartate transaminase, and alanine transaminase levels. RESULTS Compared with controls, the asthma case group had significantly higher white blood cell (p < 0.01), neutrophil, lactate dehydrogenase, C-reactive protein, and NLR levels (p < 0.01) and significantly lower lymphocyte (p = 0.001), platelet (p = 0.039), and albumin levels (p = 0.04). We determined optimal cutoff levels for several metrics: 1.723 for NLR, with sensitivity of 0.73 and specificity of 0.906; 0.135 for NAR, with sensitivity of 0.685 and specificity of 0.887; and 0.045 for NBR, with sensitivity of 0.674 and specificity of 0.906. The areas under the curve (AUCs) were 0.824 for NLR, 0.788 for NAR, 0.818 for NBR, and 0.83 for the combination of NLR + NAR + NBR. CONCLUSION The combination of NLR, NAR, and NBR biomarkers distinguished asthmatic ones suffering from exacerbation of the condition from healthy children. Thus, our results indicate NLR + NAR + NBR could be used as a clinical biomarker for asthma in children.
Collapse
|
8
|
The PERCIVAL detector: first user experiments. JOURNAL OF SYNCHROTRON RADIATION 2023; 30:242-250. [PMID: 36601943 PMCID: PMC9814071 DOI: 10.1107/s1600577522010347] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 10/26/2022] [Indexed: 06/17/2023]
Abstract
The PERCIVAL detector is a CMOS imager designed for the soft X-ray regime at photon sources. Although still in its final development phase, it has recently seen its first user experiments: ptychography at a free-electron laser, holographic imaging at a storage ring and preliminary tests on X-ray photon correlation spectroscopy. The detector performed remarkably well in terms of spatial resolution achievable in the sample plane, owing to its small pixel size, large active area and very large dynamic range; but also in terms of its frame rate, which is significantly faster than traditional CCDs. In particular, it is the combination of these features which makes PERCIVAL an attractive option for soft X-ray science.
Collapse
|
9
|
Dermatophagoides pteronyssinus allergen Der p 22: Cloning, expression, IgE-binding in asthmatic children, and immunogenicity. Pediatr Allergy Immunol 2022; 33:e13835. [PMID: 36003049 DOI: 10.1111/pai.13835] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 05/05/2022] [Accepted: 07/10/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Dust mite extract contains multiple components that, while useful in clinical allergy diagnosis and treatment, can cause serious side effects. Defining components of dust mite extract is important their contributions to allergic disease. This study aimed to characterize a novel dust mite allergen, Der p 22. METHODS We amplified the cDNA encoding Der p 22 from total RNA of the mite Dermatophagoides pteronyssinus, and inserted it into an expression construct for transformation to competent cells. Purified recombinant (r) Der p 22 was tested for IgE-binding reactivity in sera obtained from children with allergic asthma by the Affiliated Wuxi Children's Hospital of Nanjing Medical University (Jiangsu, China). rDer p 22 also was used to challenge BALB/c mice to assess effects on T helper cells and cytokine levels and applied to cultured lung epithelial cells to evaluate apoptosis and cytokine secretion. RESULTS rDer p 22 bound to IgE in 93.75% of sera from pediatric allergic asthma patients. Mice challenged with rDer p 22 had altered Th1/Th2 ratios in spleen and lymph, and lower levels of cytokines IFN-γ but higher levels of IL-4 and IL-10 in alveolar lavage fluid compared with controls (p < .05). Cultured lung epithelial cells had greater apoptosis rates and exhibited higher levels of IL-6, IL-8, and GM-CSF when treated with rDer p 22 compared with control treatment (p < .05). CONCLUSIONS Recombinant Der p 22 exhibited high IgE-binding rates in allergic children, indicating the activity of the recombinant protein and suggesting this novel allergen may be appropriate for inclusion in an allergy diagnostic workup. This finding is supported by in vitro and mouse in vivo studies showing rDer p 22 induced strong allergenic reactivity and apoptosis.
Collapse
|
10
|
Circ_0041732 Promotes Breast Cancer Progression. Mol Cancer Res 2022; 20:1561-1573. [PMID: 35838496 DOI: 10.1158/1541-7786.mcr-21-1042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 05/08/2022] [Accepted: 07/05/2022] [Indexed: 11/16/2022]
Abstract
Breast cancer (BC) is a quite prevalent cancer worldwide, and it is the leading cause of cancer-related deaths among female population worldwide. Increasingly more efforts have been made in exploration of circular RNA (circRNA) functions in various malignancies. In this study, the primary target was to verify the putative influences of circ_0041732 on BC progression and the corresponding regulatory mechanism. In addition to measurement of RNAs and proteins, functional assays were done to examine the changes in cell proliferation and cell cycle, and the potential association among genes was investigated by mechanism assays. According to experimental results, significant up-regulation of circ_0041732 was confirmed in BC tissues and cell lines. E2F4 was proved to transcriptionally modulate circ_0041732. Moreover, circ_0041732 was validated to accelerate BC cell proliferation and impede G2/M arrest and cell apoptosis, and the oncogenic role of circ_0041732 in BC was further verified via in vivo experiments. Circ_0041732 could sponge miR-541-3p to enhance expression levels of RelA and GLI4, thus activating NF-kB and Hedgehog pathways and affecting BC cell proliferation, cell cycle and apoptosis. In all, E2F4-mediated circ_0041732 could activate RelA/NF-kB and GLI4/Hedgehog signaling pathways via modulation on miR-541-3p/RelA/GLI4 to promote BC progression.
Collapse
|
11
|
A-17 Effects Of Parental Mental Health On Patient and Parent-Reported Anxiety Symptoms Following Concussion In Adolescents. Arch Clin Neuropsychol 2022. [DOI: 10.1093/arclin/acac32.17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Purpose: Examine the impact of parental mental health history on patient and patent-reported post-concussion symptoms of anxiety. Methods: Participants included 105 adolescents (42.9% male), 12–18 years old, including concussion patients (n = 72, 3.42 ± 1.7 days post-injury) and age-and-sex matched controls (n = 33). Patients and parents completed the Screen for Child Anxiety Disorders, Parent and Child versions (SCARED-P, SCARED-C) and medical histories. T-tests were used to compare control/concussed responses on the SCARED. Logistic regression (LR) was used to evaluate group predictors, as well as high/low (i.e., >21 PCSS total score) concussion symptom groups at 30 days post-injury. Results: Results indicated that concussed SCARED-C (controls: M = 7.88 SD = 7.55, concussed: M = 13.4 SD = 11.42), (t[103] = −2.53, p = 0.01) and SCARED-P (controls: M = 3.55 SD = 3.62, concussed: M = 6.72 SD = 7.12), (t[103] = −2.42, p < 0.01) scores were higher than controls. SCARED-C/SCARED-P scores were not predictive of high/low symptom report at 30 days post-injury, X2(2, n = 59) = 3.46, p = 0.18. The stepwise LR model was significant, X2(1, n = 105) = 7.34, p = 0.007; SCARED-C scores were predictive of concussion group inclusion, SCARED-P scores were not. In analyses of only patients whose parent reported a mental health history (22/105, 21%), there was no significant difference between control and patients on the SCARED-C, t(20) = −1.82, p = 0.08, or SCARED-P, t(20) = −0.34, p = 0.74. SCARED-C/SCARED-P scores did not predict control/concussion group inclusion, X2(2, n = 22) = 5.04, p = 0.08. Conclusions: SCARED-P/SCARED-C scores effectively differentiated between groups: patients and parents reported higher anxiety symptoms. The inclusion of parents with mental health diagnoses precluded the SCARED from differentiating controls from patients.
Collapse
|
12
|
Development and Verification of a Prognostic Ferroptosis-Related Gene Model in Triple-Negative Breast Cancer. Front Oncol 2022; 12:896927. [PMID: 35719954 PMCID: PMC9202593 DOI: 10.3389/fonc.2022.896927] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 05/02/2022] [Indexed: 11/14/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is the subtype with the worst prognosis of breast cancer. Ferroptosis, a novel iron-dependent programmed cell death, has an increasingly important role in tumorigenesis and development. However, there is still a lack of research on the relationship between ferroptosis-related genes and the prognosis of TNBC. In this study, we obtained the gene expression profile of TNBC patients and matched clinical data from The Cancer Genome Atlas (TCGA) database. Univariate Cox analysis was used to screen out ferroptosis-related genes associated with TNBC prognosis. Then, the least absolute shrinkage and selection operator (LASSO) regression analysis was employed to establish a prognostic prediction model. A 15-ferroptosis-related gene prognostic prediction model was developed, which classified patients into low-risk (LR) or high-risk (HR) groups. Kaplan-Meier analysis results showed that the prognosis of the LR group was better. The receiver operating characteristic (ROC) curve also confirmed the satisfactory predictive ability of this model. Evaluation of the immune microenvironment of TNBC patients in the HR and LR group suggested these 15 ferroptosis-related genes might affect the prognosis of TNBC by regulating the tumor microenvironment. Our prognostic model can provide a theoretical basis for accurate prognosis prediction of TNBC in clinical practice.
Collapse
|
13
|
Research on DCE-MRI Images Based on Deep Transfer Learning in Breast Cancer Adjuvant Curative Effect Prediction. JOURNAL OF HEALTHCARE ENGINEERING 2022; 2022:4477099. [PMID: 35251566 PMCID: PMC8890845 DOI: 10.1155/2022/4477099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/21/2022] [Accepted: 01/27/2022] [Indexed: 11/17/2022]
Abstract
Breast cancer is a serious threat to women's physical and mental health. In recent years, its incidence has been on the rise and it has become the top female malignant tumor in China. At present, adjuvant chemotherapy for breast cancer has become the standard mode of breast cancer treatment, but the response results usually need to be completed after the implementation of adjuvant chemotherapy, and the optimization of the treatment plan and the implementation of breast-conserving therapy need to be based on accurate estimation of the pathological response. Therefore, to predict the efficacy of adjuvant chemotherapy for breast cancer patients is to find a predictive method that is conducive to individualized choice of chemotherapy regimens. This article introduces the research of DCE-MRI images based on deep transfer learning in breast cancer adjuvant curative effect prediction. Deep transfer learning algorithms are used to process images, and then, the features of breast cancer after adjuvant chemotherapy are collected through image feature collection. Predictions are made, and the research results show that the accuracy of the prediction reaches 70%.
Collapse
|
14
|
Regulatory roles of three miRNAs on allergen mRNA expression in Tyrophagus putrescentiae. Allergy 2022; 77:469-482. [PMID: 34570913 DOI: 10.1111/all.15111] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 09/01/2021] [Accepted: 09/03/2021] [Indexed: 12/26/2022]
Abstract
BACKGROUND Tyrophagus putresecentiae is an important mite species in rural and urban environments, causing sensitization and allergic disease. While evidence suggests that microRNAs (miRNAs) may regulate the expression of allergen-encoding genes, no study has directly investigated this possibility. Here, this gap was addressed by profiling miRNAs and elucidating their target allergen messenger RNAs (mRNAs) in this mite species. METHODS Small RNA and transcriptome libraries were constructed for eggs, larvae, nymphs, and adults. After deep miRNA and whole-transcriptome sequencing were performed, the miRNA and allergen-encoding mRNA regulatory networks were explored. RESULTS A total of 540 miRNAs were identified, including 155 with expression levels differing significantly across the four mite developmental stages (p < .01), 59 of which were novel. The mRNA expression for allergens was higher for Tyr p 1 in adults than in other developmental stages; Tyr p 2-5, 7, 10, 13, 33, and 34 in immature stages; and Tyr p 28, 35, and 36 in eggs and adults. A combined miRNA and transcriptome bioinformatics analysis showed that allergen Tyr p 3 was regulated by miRNA PC-5p-5698441_1, Tyr p 4 was regulated by PC-5p-7050653_1, and Tyr p 34 was regulated by PC-5p-5534223_1 and PC-5p-5698441_1. These three allergen mRNA and three miRNAs were identified using qRT-PCR, and their regulatory roles were confirmed by double-fluorescent reporter gene system and site-directed mutagenesis technology. CONCLUSIONS For the first time, allergen mRNA expression and miRNAs were profiled throughout the life cycle for an allergen-producing mite, and the results showed that miRNAs bind to target allergen mRNAs to regulate their expression.
Collapse
|
15
|
Multivariable Models Based on Baseline Imaging Features and Clinicopathological Characteristics to Predict Breast Pathologic Response after Neoadjuvant Chemotherapy in Patients with Breast Cancer. Breast Care (Basel) 2021; 17:306-315. [DOI: 10.1159/000521638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 12/21/2021] [Indexed: 11/19/2022] Open
Abstract
Abstract
Introduction
Currently, the accurate evaluation and prediction of response to neoadjuvant chemotherapy (NAC) remains a great challenge. We developed several multivariate models based on baseline imaging features and clinicopathological characteristics to predict the breast pathologic complete response (pCR).
Methods
We retrospectively collected clinicopathological and imaging data of patients who received NAC and subsequent surgery for breast cancer at our hospital from 2014 June till 2020 September. We used mammography, ultrasound and magnetic resonance imaging (MRI) to investigate the breast tumors at baseline.
Results
A total of 308 patients were included and 111 patients achieved pCR. The HER2 status and Ki-67 index were significant factors for pCR on univariate analysis and in all multivariate models. Among the prediction models in this study, the ultrasound-MRI model performed the best, producing an area under curve of 0.801 (95%CI=0.749-0.852), a sensitivity of 0.797 and a specificity of 0.676.
Conclusion
Among the multivariable models constructed in this study, the ultrasound plus MRI model performed the best in predicting the probability of pCR after NAC. Further validation is required before it is generalized.
Collapse
|
16
|
Abstract
Objective: YKL-40 is a highly conserved and chitin-bound human glycoprotein in mammals that is associated with airway inflammation and has no enzyme activity. We aimed to conduct a meta-analysis to assess the use of YKL-40 levels as a diagnosis of asthma. Methods: A meta-analysis was conducted based on the data from medical literature data base searches with time restrictions of January 2007 to January 2021. We searched and extracted relevant information from a total of 15 studies that reported YKL-40 levels in patients with asthma and in healthy controls, and obtained a sample of 1647 patients with asthma and 1259 healthy controls. Standardized mean differences (SMD) with 95% confidence intervals (CI) were calculated for this study by using statistical software packages. Results: Serum YKL-40 levels were higher in the patients with asthma than in the healthy controls (SMD 1.36 ng/ml [95% CI, 0.82-1.89 ng/ml]). YKL-40 levels are elevated in pediatric patients with asthma (SMD 2.26 ng/ml [95% CI, 1.33-3.18 ng/ml]) and in adult patients with asthma (SMD 0.96 ng/ml [95% CI, 0.26-1.66 ng/ml]). In addition, a subgroup analysis of asthma disease status showed that YKL-40 levels were significantly increased in the patients with stable asthma (SMD 1.69 ng/ml [95% CI, 0.81-2.56 ng/ml]) and in those with acute exacerbation asthma (SMD 3.31 ng/ml [95% CI, 2.04-4.58 ng/ml]), and serum YKL-40 levels were significantly higher in patients with acute exacerbation asthma than in patients with stable asthma (SMD 1.49 ng/ml [95% CI, 0.50-2.48 ng/ml]). Conclusion: Results of this meta-analysis suggested that increased serum levels of YKL-40 in patients with asthma could be used as an emerging indicator for distinguishing individuals with asthma from healthy individuals.
Collapse
|
17
|
Combined score of C-reactive protein level and neutrophil-to-lymphocyte ratio: A novel marker in distinguishing children with exacerbated asthma. Int J Immunopathol Pharmacol 2021; 35:20587384211040641. [PMID: 34514899 PMCID: PMC8442497 DOI: 10.1177/20587384211040641] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background Both C-reactive protein (CRP) level and neutrophil-to-lymphocyte ratio (NLR)
are commonly elevated in patients with asthma. It is necessary to develop a
novel marker, the combined score of CRP level and NLR (C-NLR score) based on
cutoff points of CRP and NLR, and apply it in asthma diagnosis. The aim of
this study was to explore whether C-NLR could distinguish children with
exacerbated asthma. Methods Children suffering from exacerbated asthma were regarded as the asthmatic
group (n = 86), which was divided into three groups: mild
(n = 54), moderate (n = 17), and
severe (n = 15). The control group consisted of children
without any allergic disease and infection (n = 38). To
compare CRP level and NLR between the asthmatic group and control group, a
receiver-operating characteristic curve was constructed to determine area
under the curve (AUC) and optimal cutoff point. Thereafter, the C-NLR score
was classified as follows: C-NLR score of 2 with an elevated CRP level and
high NLR, a C-NLR score of 1 with one of these abnormalities, and a C-NLR
score of 0 with a normal CRP level and low NLR. The C-NLR score was then
compared among different asthma groups. Results In the control group, the CRP level and NLR were 1.9 (0.5–2.6) mg/L and 1.01
(0.69–1.31), respectively. In the asthmatic group, the CRP level and NLR
were 7.3 (3.2–14.2) mg/L and 3.08 (1.73–5.34), respectively, which were
higher than those in the control group (p < 0.001 for
CRP and p < 0.001 for NLR). The AUC of CRP was 0.86, and
the optimal cutoff point was 3.6 mg/L. The AUC of NLR was 0.86, and the
optimal cutoff point was 1.72. The AUC of the C-NLR score was 0.94, and the
optimal cutoff point was 1. Conclusions C-NLR, a novel inflammatory marker, was applied here for the exacerbated
asthma for the first time. Our study has shown C-NLR is a promising marker
to distinguish children with exacerbated asthma from healthy children.
Collapse
|
18
|
Abstract
Dragging of light by moving media was predicted by Fresnel1 and verified by Fizeau's celebrated experiments2 with flowing water. This momentous discovery is among the experimental cornerstones of Einstein's special relativity theory and is well understood3,4 in the context of relativistic kinematics. By contrast, experiments on dragging photons by an electron flow in solids are riddled with inconsistencies and have so far eluded agreement with the theory5-7. Here we report on the electron flow dragging surface plasmon polaritons8,9 (SPPs): hybrid quasiparticles of infrared photons and electrons in graphene. The drag is visualized directly through infrared nano-imaging of propagating plasmonic waves in the presence of a high-density current. The polaritons in graphene shorten their wavelength when propagating against the drifting carriers. Unlike the Fizeau effect for light, the SPP drag by electrical currents defies explanation by simple kinematics and is linked to the nonlinear electrodynamics of Dirac electrons in graphene. The observed plasmonic Fizeau drag enables breaking of time-reversal symmetry and reciprocity10 at infrared frequencies without resorting to magnetic fields11,12 or chiral optical pumping13,14. The Fizeau drag also provides a tool with which to study interactions and nonequilibrium effects in electron liquids.
Collapse
|
19
|
Effect modification of the association between diurnal temperature range and hospitalisations for ischaemic stroke by temperature in Hefei, China. Public Health 2021; 194:208-215. [PMID: 33962098 DOI: 10.1016/j.puhe.2020.12.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 10/17/2020] [Accepted: 12/30/2020] [Indexed: 01/21/2023]
Abstract
OBJECTIVES Diurnal temperature range (DTR) is an important indicator of global climate change. Many epidemiological studies have reported the associations between high DTR and human health. This study investigated the association between DTR and hospitalisations for ischaemic stroke in Hefei, China. STUDY DESIGN This is an ecological study. METHODS Data of daily hospital admissions for ischaemic stroke and meteorological variables from 1 January 2009 to 31 December 2017 were collected in Hefei, China. A generalised additive model combined with distributed lag non-linear model was used to quantify the effects of DTR on ischaemic stroke. The interactive effect between DTR and temperature was explored with a non-parametric bivariate response surface model. RESULTS High DTR was associated with hospitalisations for ischaemic stroke. The adverse effect of extremely high DTR (99th percentile [17.1 °C]) occurred after 8 days (relative risk [RR] = 1.021, 95% confidence interval [CI] = 1.002, 1.041) and the maximum effect appeared after 12 days (RR = 1.029, 95% CI = 1.011, 1.046). The overall trend of the effect of DTR on ischaemic stroke was decreasing. In addition, there was a significant interactive effect of high DTR and low temperature on ischaemic stroke. CONCLUSIONS This study suggests that the impact of high DTR should be considered when formulating targeted measures to prevent ischaemic stroke, especially for those days with high DTR and low mean temperature.
Collapse
|
20
|
miR-34a Reverses Doxorubicin Resistance in Breast Cancer. J BIOMATER TISS ENG 2020. [DOI: 10.1166/jbt.2020.2518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Chemotherapy is effectively used for treating breast cancer, but the problem of tumor resistance to chemotherapy drugs has been plaguing scientists. Our study investigated miR-34a?s effect on the sensitivity of drug-resistant strains to chemotherapeutic drugs using doxorubicin-resistant
strains of breast cancer cells. Cell survival rate was detected by MTT assay. The doxorubicin-resistant strain rMCF-7 was obtained. The cell scratching method and CCK-8 method were used to detect cell migration and proliferation.Western Blot was performed for measuring SIRT1, p-AKT, AKT, p-mTOR
and mTOR level. miR-34a significantly reduced the survival rate o doxorubicin-resistant breast cancer cell line rMCF-7 and significantly enhanced doxorubicin?s effect on inhibiting cell proliferation and cell migration. Compared with the doxorubicin group alone, miR-34a and doxorubicin combination
group significantly downregulated SIRT1, p-AKT/AKT and p-mTOR/mTOR related proteins in rMCF-7 cells. miR-34a can reverse the resistance of doxorubicin in breast cancer in vitro and the mechanism may be through inhibition of SIRT and AKT signaling.
Collapse
|
21
|
Measurements of tt[over ¯]H Production and the CP Structure of the Yukawa Interaction between the Higgs Boson and Top Quark in the Diphoton Decay Channel. PHYSICAL REVIEW LETTERS 2020; 125:061801. [PMID: 32845700 DOI: 10.1103/physrevlett.125.061801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 06/19/2020] [Indexed: 06/11/2023]
Abstract
The first observation of the tt[over ¯]H process in a single Higgs boson decay channel with the full reconstruction of the final state (H→γγ) is presented, with a significance of 6.6 standard deviations (σ). The CP structure of Higgs boson couplings to fermions is measured, resulting in an exclusion of the pure CP-odd structure of the top Yukawa coupling at 3.2σ. The measurements are based on a sample of proton-proton collisions at a center-of-mass energy sqrt[s]=13 TeV collected by the CMS detector at the LHC, corresponding to an integrated luminosity of 137 fb^{-1}. The cross section times branching fraction of the tt[over ¯]H process is measured to be σ_{tt[over ¯]H}B_{γγ}=1.56_{-0.32}^{+0.34} fb, which is compatible with the standard model prediction of 1.13_{-0.11}^{+0.08} fb. The fractional contribution of the CP-odd component is measured to be f_{CP}^{Htt}=0.00±0.33.
Collapse
|
22
|
Circ_DCAF6 potentiates cell stemness and growth in breast cancer through GLI1-Hedgehog pathway. Exp Mol Pathol 2020; 116:104492. [PMID: 32668286 DOI: 10.1016/j.yexmp.2020.104492] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 05/29/2020] [Accepted: 07/07/2020] [Indexed: 01/08/2023]
Abstract
Circular RNAs (circRNAs) are extensively revealed as a malignant activator or suppressor in multiple pathological processes including cancer cell stemness and growth. However, the association of circ_DCAF6 with breast cancer (BC) cell growth and stemness has not been well depicted. In this research, qRT-PCR clarified the high level of circ_DCAF6 in BC cells. In functional aspects, BC cells presented suppressed proliferation and stemness in the absence of circ_DCAF6. The potential correlation of circ_DCAF6 with Hedgehog (Hh) pathway was unveiled utilizing its specific inhibitor or agonist in qRT-PCR and functional assays. Circ_DCAF6 positively mediated the expression of GLI1 and its facilitating impacts on BC cell proliferation and stemness required the participation of GLI1-dependent Hh signaling pathway. In depth, circ_DCAF6 post-transcriptionally upregulated GLI1 expression through sequestering miR-616-3p. Rescue experiments verified that the suppressive influence of circ_DCAF6 depletion or miR-616-3p upregulation on BC progression was reversed by GLI1 upregulation. In summary, a probable contribution of circ_DCAF6 to BC cell growth and stemness was elaborated. Circ_DCAF6 assisted in Hh signal pathway activation via the up-regulation of GLI1 by sponging miR-616-3p, generating new thoughts on future direction of antagonizing BC tumorigenesis and stem-like property.
Collapse
|
23
|
XUV-driven plasma switch for THz: new spatio-temporal overlap tool for XUV-THz pump-probe experiments at FELs. JOURNAL OF SYNCHROTRON RADIATION 2020; 27:11-16. [PMID: 31868730 PMCID: PMC6927515 DOI: 10.1107/s1600577519014164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 10/16/2019] [Indexed: 06/10/2023]
Abstract
A simple and robust tool for spatio-temporal overlap of THz and XUV pulses in in-vacuum pump-probe experiments is presented. The technique exploits ultrafast changes of the optical properties in semiconductors (i.e. silicon) driven by ultrashort XUV pulses that are probed by THz pulses. This work demonstrates that this tool can be used for a large range of XUV fluences that are significantly lower than when probing by visible and near-infrared pulses. This tool is mainly targeted at emerging X-ray free-electron laser facilities, but can be utilized also at table-top high-harmonics sources.
Collapse
|
24
|
Abstract
BACKGROUND Papillary breast lesions constitute a pathological heterogeneous group and display diverse clinical and imaging features. This study was conducted to analyze the upgrade rate of intraductal papilloma diagnosed on core needle biopsy and to assess the possible risk factors associated with upgrade to higher-risk lesions. We also examined the long-term outcomes in patients who received resection of the papillary lesions. MATERIALS AND METHODS The clinical and pathology records of 324 female patients who were diagnosed with papillary lesions based on core needle biopsy (CNB) from February 2010 to October 2016 at our institution were retrospectively analyzed. Patients were grouped by initial diagnosis into two groups (papilloma with or without atypia) and followed-up for long-term outcomes. For the upgrade to higher-risk lesions after excision, upgraded lesions were compared with benign papillomas for the collected variables. RESULTS A total of 341 lesions were included for final analysis, and all were available for follow-up. Papillomas with or without atypia diagnosed by CNB were found in 9 and 332 lesions, respectively. Papillomas without atypia on CNB were treated by open excision (n = 265) or vacuum-assisted biopsy (VAB) (n = 67), which yielded similar event-free rate (p = 0.19). The upgrade rate of this group to higher-risk lesions was 9.9%. Peripheral (p = 0.011) lesions in postmenopausal (p = 0.001) or older (p = 0.001) patients with papillomas without atypia based on CNB showed significantly higher upgrade rates. Papillomas with atypia on CNB were all managed by open excision, and concurrent malignancy was found in two lesions. CONCLUSION In conclusion, our results support benign papillary lesions based on CNB require further treatment. Peripheral lesions occurring in older or postmenopausal women are at higher risk for upgrade.
Collapse
|
25
|
Electronic decay of core-excited HCl molecules probed by THz streaking. STRUCTURAL DYNAMICS (MELVILLE, N.Y.) 2019; 6:034301. [PMID: 31123698 PMCID: PMC6506338 DOI: 10.1063/1.5091756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 04/19/2019] [Indexed: 06/09/2023]
Abstract
The ultrafast electronic decay of HCl molecules in the time domain after resonant core excitation was measured. Here, a Cl-2p core electron was promoted to the antibonding σ* orbital initiating molecular dissociation, and simultaneously, the electronic excitation relaxes via an Auger decay. For HCl, both processes compete on similar ultrashort femtosecond time scales. In order to measure the lifetime of the core hole excitation, we collinearly superimposed 40 fs soft x-ray pulses with intense terahertz (THz) radiation from the free-electron laser in Hamburg (FLASH). Electrons emitted from the molecules are accelerated (streaked) by the THz electric field where the resulting momentum change depends on the field's phase at the instant of ionization. Evaluation of a time-shift between the delay-dependent streaking spectra of photo- and Auger electrons yields a decay constant of (11 ± 2) fs for LMM Auger electrons. For further validation, the method was also applied to the MNN Auger decay of krypton. Reproduction of the value already published in the literature confirms that a temporal resolution much below the duration of the exciting x-ray pulses can be reached.
Collapse
|
26
|
BCL11A enhances stemness and promotes progression by activating Wnt/β-catenin signaling in breast cancer. Cancer Manag Res 2019; 11:2997-3007. [PMID: 31114347 PMCID: PMC6489585 DOI: 10.2147/cmar.s199368] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Accepted: 02/27/2019] [Indexed: 12/21/2022] Open
Abstract
Background: Breast cancer has become the most common malignant disease threatening women’s health. The cancer stem cell (CSC) has been recognized as a small subpopulation of cancer cells possesses stem cell properties, which is crucial in tumorigenicity, tumor invasion, drug resistance, and metastasis. The BCL11A plays a crucial role in breast cancer progression. To investigate the effect of BCL11A, a functional oncogene, we focused on its maintenance ability of stemness in breast cancer stem cells. Methods: We assessed the BCL11A expression level in tumor and non-tumor tissues using RT-qPCR and IHC. We subsequently established BCL11A-modulating breast cancer cell lines MDA-MB-231 and MCF-7. CCK8, colony formation assays, and xenograft model were used to determine the effect of BCL11A on tumorigenicity. Transwell assay and lung metastasis model in vivo were conducted to validate its function in metastasis. Its effect on stemness was assessed by flow cytometry and mammosphere formation. Western blot further characterized the importance of Wnt/β-catenin signaling in BCL11A-regulated cancer cell stemness. Results: A higher level of BCL11A was detected in clinical breast cancer samples. BCL11A promoted tumor formation, cancer cell mobility, spheroid forming, and epithelial-mesenchymal transition by activating the Wnt/β-catenin signaling. In addition, BCL11A was associated with lung metastasis and increased the breast cancer cells stemness. BCL11A high expression (BCL11Ahigh) cancer cells exhibited stem cell-like properties compared with BCL11Alow cells, including a higher percentage of CD24low/CD44high subpopulation, self-renewal spheroids formation, and higher tumorigenicity. Our studies demonstrated that the Wnt/β-catenin signaling activated by BCL11A plays a potential role in the initiation of the renewal of breast cancer stem cells. Conclusions: BCL11A not only functions in breast cancer carcinogenesis but also enhanced the stemness of breast cancer through activating Wnt/β-catenin signaling, and may become a potential target for breast cancer treatment.
Collapse
|
27
|
Calhm2 governs astrocytic ATP releasing in the development of depression-like behaviors. Mol Psychiatry 2018; 23:883-891. [PMID: 29180673 DOI: 10.1038/mp.2017.229] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 07/14/2017] [Accepted: 07/17/2017] [Indexed: 12/13/2022]
Abstract
Extracellular ATP is a widespread cell-to-cell signaling molecule in the brain, where it functions as a neuromodulator by activating glia and neurons. Although ATP exerts multiple effects on synaptic plasticity and neuro-glia interactions, as well as in mood disorders, the source and regulation of ATP release remain to be elaborated. Here, we define Calhm2 as an ATP-releasing channel protein based on in vitro and in vivo models. Conventional knockout and conditional astrocyte knockout of Calhm2 both lead to significantly reduced ATP concentrations, loss of hippocampal spine number, neural dysfunction and depression-like behaviors in mice, which can be significantly rescued by ATP replenishment. Our findings identify Calhm2 as a critical ATP-releasing channel that modulates neural activity and as a potential risk factor of depression.
Collapse
|
28
|
[The situation and associated factors of satisfaction with follow-up management of HIV/AIDS cases conducted by Community Health Service Center in Hongkou district of Shanghai]. ZHONGHUA YU FANG YI XUE ZA ZHI [CHINESE JOURNAL OF PREVENTIVE MEDICINE] 2017; 51:438-443. [PMID: 28464596 DOI: 10.3760/cma.j.issn.0253-9624.2017.05.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze satisfaction with follow-up management of HIV/AIDS cases conducted by Community Health Service Center (CHS) and related factors in Hongkou district, Shanghai. Methods: Out of 302 HIV/AIDS cases followed up by CHS in Hongkou district from 2012 to 2016, 263 HIV/AIDS cases were recruited to participate in a cross-sectional study assessed by self-designed questionnaire-based interview during October 1, 2016 and October 20, 2016, with efficiency of 87.1%. Information of basic characteristics including sociodemographic, routes of infection, CD4(+)T cell counts, diagnose of AIDS and status of receiving ART were collected, as well as satisfaction with follow-up management conducted by CHS including service professionalism, service attitude, service environment, referral service, privacy protection, health education, psychological support, and care and assistance. Factors related to satisfaction were analyzed using multiple binary logistic regression. Results: Among 263 HIV/AIDS cases, the average age was 42.0±13.5, 93.2% (245 cases) were male and the proportion of overall satisfaction was 72.2% (190 cases). Out of 8 items of satisfaction, service attitude and health education got the highest score with a total number of 235 (89.4%) answering "very satisfied" or "satisfied" , while care and assistance got the lowest score with a total number of 69 (26.2%) answering "dissatisfied" or "very dissatisfied" . Compared to HIV/AIDS local residents and followed up by CHS <12 months, those who were non-local residents and followed up by CHS ≥12 months were more likely to be satisfied, the OR (95%CI) were 2.66 (1.30-5.44) and 2.52 (1.01-6.29), respectively. Compared to HIV/AIDS ≤30 years old and receiving ART, those who were 31-50 years or >50 years old and not receiving ART were less likely to be satisfied, the OR (95%CI) were 0.36 (0.15-0.89), 0.32 (0.10-0.97) and 0.11 (0.01-0.90), respectively. Conclusion: Satisfaction with follow-up management conducted by CHS in Hongkou district is relatively high. Age, residence, status of receiving ART and cumulative time of following up by CHS are significantly associated with satisfaction, suggesting that CHS should improve their professional abilities during follow-up management, as well as be more targeted and focus on different aspects.
Collapse
|
29
|
Uncertainty quantification and design-of-experiment in absorption-based aqueous film parameter measurements using Bayesian inference. APPLIED OPTICS 2017; 56:E1-E7. [PMID: 28414335 DOI: 10.1364/ao.56.0000e1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Diode laser-based multi-wavelength near-infrared (NIR) absorption in aqueous films is a promising diagnostic for making temporally resolved, simultaneous measurements of film thickness, temperature, and concentration of a solute. Our previous work in aqueous urea solutions aimed at determining simultaneously two of these system parameters, while the third one must be fixed or specified by additional measurements. The current work presents a simultaneous NIR absorption-based multi-parameter measurement of thickness, temperature, and solute concentration coupled with the Bayesian methodology that is used to infer probability densities for the obtained data. The Bayesian analysis is based on a temperature- and concentration-dependent spectral database generated with a Fourier transform infrared spectrometer in the range 5500-8000 cm-1 for water with variable temperature and urea concentration. The concept was first validated with measurements using a calibration cell. Probability densities in the measured parameters were quantified using a Markov chain Monte Carlo algorithm, which were used to derive credibility intervals. As a practical demonstration, the temporal variation of film thickness, urea concentration, and liquid temperature were recorded during evaporation of a liquid film deposited on a transparent heated quartz plate.
Collapse
|
30
|
Left Ventricular Function in Heart Failure Can Be Improved by AMPK-Activation via Acrp30 Signaling. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
31
|
[The influence on the peeling off time of the tunica albuginea after 4-8℃ cool water was applied to children's low temperature plasma-assisted tonsillectomy]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2016; 30:1224-1226. [PMID: 29798334 DOI: 10.13201/j.issn.1001-1781.2016.15.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Indexed: 11/12/2022]
Abstract
Objective:The aim of this study is to discuss the influence on the peeling off time of the tunica albuginea after 4-8℃ cool water was applied to children 's low temperature plasmaassisted tonsillectomy.Method:One hundred and seventeen benign hypertrophy of tonsil patients were recruited,the 56 cases of them were served as experimental group,who were treated with plasma tonsillectomy using 4-8℃ normal saline as medium,while the 61 cases were served as control group,who were treated with plasma tonsillectomy using 22-25℃ normal saline as medium.Then,we analyzed the peeling off time of the tunica albuginea between experimental and control group.Result:The difference of formation time between experimental group and control group was not statistically significant(P >0.05).The average peeling off time of the tunica albuginea was (11.32±2.51) days in experimental group,while time was(15.03±4.12) days in control group.There was a statistical difference between them.Conclusion:The use of 4-8℃ cold water in children's low temperature plasma-assisted tonsillectomy can reduce the peeling off time of the tunica albuginea,and it indicate that the ice water medium can reduce the heat injury caused by the plasma operation.
Collapse
|
32
|
Modeling solids friction factor for fluidized dense-phase pneumatic transport of powders using two layer flow theory. POWDER TECHNOL 2016. [DOI: 10.1016/j.powtec.2016.02.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
33
|
|
34
|
Arctigenin suppresses transforming growth factor-β1-induced expression of monocyte chemoattractant protein-1 and the subsequent epithelial–mesenchymal transition through reactive oxygen species-dependent ERK/NF-κB signaling pathway in renal tubular epithelial cells. Free Radic Res 2015; 49:1095-113. [DOI: 10.3109/10715762.2015.1038258] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
35
|
Abstract
BACKGROUND Despite substantial research, uncertainty remains about the clinical and etiological heterogeneity of major depression (MD). Can meaningful and valid subtypes be identified and would they be stable cross-culturally? METHOD Symptoms at their lifetime worst depressive episode were assessed at structured psychiatric interview in 6008 women of Han Chinese descent, age ⩾ 30 years, with recurrent DSM-IV MD. Latent class analysis (LCA) was performed in Mplus. RESULTS; Using the nine DSM-IV MD symptomatic A criteria, the 14 disaggregated DSM-IV criteria and all independently assessed depressive symptoms (n = 27), the best LCA model identified respectively three, four and six classes. A severe and non-suicidal class was seen in all solutions, as was a mild/moderate subtype. An atypical class emerged once bidirectional neurovegetative symptoms were included. The non-suicidal class demonstrated low levels of worthlessness/guilt and hopelessness. Patterns of co-morbidity, family history, personality, environmental precipitants, recurrence and body mass index (BMI) differed meaningfully across subtypes, with the atypical class standing out as particularly distinct. CONCLUSIONS MD is a clinically complex syndrome with several detectable subtypes with distinct clinical and demographic correlates. Three subtypes were most consistently identified in our analyses: severe, atypical and non-suicidal. Severe and atypical MD have been identified in multiple prior studies in samples of European ethnicity. Our non-suicidal subtype, with low levels of guilt and hopelessness, may represent a pathoplastic variant reflecting Chinese cultural influences.
Collapse
|
36
|
First Report of Corn Bacterial Leaf Stripe Caused by Acidovorax avenae in Guangdong Province, China. PLANT DISEASE 2014; 98:1424. [PMID: 30704011 DOI: 10.1094/pdis-03-14-0334-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Each autumn of 2011 to 2013, a disease was observed on corn (cv. Huameitian 8) in the Experimental Farm of South China Agricultural University, Guangzhou, Guangdong Province, with an incidence ranging from 20 to 65%. Initial symptoms appeared as small, water-soaked lesions on the leaves. Under warm and humid conditions, lesions expanded along the veins producing necrotic stripes. Stripes later became dry and brown, often with shredding of the infected tissue. Bacterial ooze was observed coming out of sections of leaves showing stripe symptoms. Diseased leaf tissues were surface disinfected in 75% ethanol for 1 min followed by three rinses with sterile distilled water. Bacteria were isolated from symptomatic tissues. Colonies were creamy white, circular, convex, smooth with entire margins on nutrient agar, and non-fluorescent and slow-growing on King's medium B. The strains were gram-negative, rod-shaped with a unidirectional flagellum, aerobic, positive for gelatin liquefaction and catalase, amylase activity, and negative for nitrate reduction. The strains utilized mannose, fructose, and citrate, but not lactose and maltose. 16S rDNA genes of two strains, GDHN01 (Accession No. JQ904301) and GDHN02 (JQ904302), were amplified using universal primers (3). A 1,433-bp amplification product was obtained. Using BLAST analysis of NCBI GenBank, these sequences showed 99 to 100% sequence identity with the type strain Acidovorax avenae subsp. avenae ICMP 3183 (NR041757). These two strains were identified as A. avenae by Biolog metabolic phenotype analysis (Biolog, Hayward, CA) with similarity indices ranging from 0.550 to 0.823. The strains induced hypersensitive response on leaves of 2-month-old tobacco plants within 24 h. The pathogenicity of GDHN01 and GDHN02 was tested three times by needle puncture with bacterial suspensions containing of 6 × 108 CFU/ml on five-leaf-stage healthy corn seedlings (cv. Huameitian 8) (n = 5 seedlings/isolate/experiment). Positive controls were inoculated with A. avenae reference strain Yu13 (obtained from Nanjing Agricultural University, China) (1) and negative controls were inoculated with sterile water. Plants were kept in the greenhouse at 28°C and 80% RH. Yellow to brown stripes were observed on all inoculated leaves at 4 to 6 days post-inoculation; similar symptoms were caused by the reference strain, but no symptoms developed on the negative control plants. Re-isolated bacteria from symptomatic tissues were confirmed to be A. anevae based on morphology, physiological assays, and 16S rDNA sequence analysis described above. No target bacteria were isolated from the control plants. A. avenae was previously identified as the causal agent of bacterial leaf stripe on corn in Jiangsu Province (1) and rice in Zhejiang Province (2). To our knowledge, this is the first report of A. avenae naturally infecting corn in Guangdong Province. Guangdong is the largest sweet corn-producing and consuming province in China. This seed-borne pathogen may pose a threat to corn production in Guangdong Province. References: (1) Y. Gao et al. Jiangsu J. Agric. Sci. 23:22, 2007. (2) L. H. Xu et al. Chinese J. Rice Sci. 22:302, 2008. (3) N. W. Schaad et al. Laboratory Guide for the Identification of Plant Pathogenic Bacteria, 3rd edition. APS Press. St. Paul, MN, 2001.
Collapse
|
37
|
SU-E-J-12: A New Stereological Method for Tumor Volume Evaluation for Esophageal Cancer. Med Phys 2014. [DOI: 10.1118/1.4888063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
38
|
Role of misalignment-induced angular chirp in the electro-optic detection of THz waves. OPTICS EXPRESS 2014; 22:12028-12037. [PMID: 24921322 DOI: 10.1364/oe.22.012028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A general description of electro-optic detection including non-collinear phase matching and finite transverse beam profiles is presented. It is shown theoretically and experimentally that non-collinear phase matching in ZnTe (and similar materials) produces an angular chirp in the χ(2)-generated optical signal. Due to this, in non-collinear THz and probe arrangements such as single-shot THz measurements or through accidental misalignment, measurement of an undistorted THz signal is critically dependent on having sufficient angular acceptance in the optical probe path. The associated spatial walk-off can also preclude the phase retardation approximation used in THz-TDS. The rate of misalignment-induced chirping in commonly used ZnTe and GaP schemes is tabulated, allowing ready analysis of a detection system.
Collapse
|
39
|
The structure of the symptoms of major depression: exploratory and confirmatory factor analysis in depressed Han Chinese women. Psychol Med 2014; 44:1391-1401. [PMID: 23920138 PMCID: PMC3967839 DOI: 10.1017/s003329171300192x] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Revised: 06/20/2013] [Accepted: 07/02/2013] [Indexed: 02/05/2023]
Abstract
BACKGROUND The symptoms of major depression (MD) are clinically diverse. Do they form coherent factors that might clarify the underlying nature of this important psychiatric syndrome? METHOD Symptoms at lifetime worst depressive episode were assessed at structured psychiatric interview in 6008 women of Han Chinese descent, age ⩾30 years with recurrent DSM-IV MD. Exploratory factor analysis (EFA) and confirmatoryfactor analysis (CFA) were performed in Mplus in random split-half samples. RESULTS The preliminary EFA results were consistently supported by the findings from CFA. Analyses of the nine DSM-IV MD symptomatic A criteria revealed two factors loading on: (i) general depressive symptoms; and (ii) guilt/suicidal ideation. Examining 14 disaggregated DSM-IV criteria revealed three factors reflecting: (i) weight/appetite disturbance; (ii) general depressive symptoms; and (iii) sleep disturbance. Using all symptoms (n = 27), we identified five factors that reflected: (i) weight/appetite symptoms; (ii) general retarded depressive symptoms; (iii) atypical vegetative symptoms; (iv) suicidality/hopelessness; and (v) symptoms of agitation and anxiety. CONCLUSIONS MD is a clinically complex syndrome with several underlying correlated symptom dimensions. In addition to a general depressive symptom factor, a complete picture must include factors reflecting typical/atypical vegetative symptoms, cognitive symptoms (hopelessness/suicidal ideation), and an agitated symptom factor characterized by anxiety, guilt, helplessness and irritability. Prior cross-cultural studies, factor analyses of MD in Western populations and empirical findings in this sample showing risk factor profiles similar to those seen in Western populations suggest that our results are likely to be broadly representative of the human depressive syndrome.
Collapse
|
40
|
|
41
|
Cognitive trio: relationship with major depression and clinical predictors in Han Chinese women. Psychol Med 2013; 43:2265-2275. [PMID: 23425530 PMCID: PMC3807662 DOI: 10.1017/s0033291713000160] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2012] [Revised: 01/06/2013] [Accepted: 01/10/2013] [Indexed: 11/07/2022]
Abstract
BACKGROUND Previous studies support Beck's cognitive model of vulnerability to depression. However, the relationship between his cognitive triad and other clinical features and risk factors among those with major depression (MD) has rarely been systematically studied. METHOD The three key cognitive symptoms of worthlessness, hopelessness and helplessness were assessed during their lifetime worst episode in 1970 Han Chinese women with recurrent MD. Diagnostic and other risk factor information was assessed at personal interview. Odds ratios (ORs) were calculated by logistic regression. RESULTS Compared to patients who did not endorse the cognitive trio, those who did had a greater number of DSM-IV A criteria, more individual depressive symptoms, an earlier age at onset, a greater number of episodes, and were more likely to meet diagnostic criteria for melancholia, postnatal depression, dysthymia and anxiety disorders. Hopelessness was highly related to all the suicidal symptomatology, with ORs ranging from 5.92 to 6.51. Neuroticism, stressful life events (SLEs) and a protective parental rearing style were associated with these cognitive symptoms. CONCLUSIONS During the worst episode of MD in Han Chinese women, the endorsement of the cognitive trio was associated with a worse course of depression and an increased risk of suicide. Individuals with high levels of neuroticism, many SLEs and high parental protectiveness were at increased risk for these cognitive depressive symptoms. As in Western populations, symptoms of the cognitive trio appear to play a central role in the psychopathology of MD in Chinese women.
Collapse
|
42
|
Hesperidin pretreatment protects hypoxia-ischemic brain injury in neonatal rat. Neuroscience 2013; 255:292-9. [PMID: 24076349 DOI: 10.1016/j.neuroscience.2013.09.030] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Revised: 09/15/2013] [Accepted: 09/16/2013] [Indexed: 02/01/2023]
Abstract
Neonatal hypoxia-ischemic encephalopathy (HIE) remains a major cause of brain damage, leading to high disability and mortality rates in neonates. In vitro studies have shown that hesperidin, a flavanone glycoside found abundantly in citrus fruits, acts as an antioxidant. Although hesperidin has been considered as a potential treatment for HIE, its effects have not been fully evaluated. In this study, the protective effect of hesperidin pretreatment against hypoxia-ischemic (HI) brain injury and possible signal pathways were investigated using in vivo and in vitro models. In vivo HI model employed unilateral carotid ligation in postnatal day 7 rat with exposure to 8% hypoxia for 2.5h, whereas in vitro model employed primary cortical neurons of neonatal rats subjected to oxygen and glucose deprivation for 2.5h. Hesperidin pretreatment significantly reduced HI-induced brain tissue loss and improved neurological outcomes as shown in 2,3,5-triphenyltetrazolium chloride monohydrate staining and foot-fault results. The neuroprotective effects of hesperidin are likely the results of preventing an increase in intracellular reactive oxygen species and lipid peroxide levels. Hesperidin treatment also activated a key survival signaling kinase, Akt, and suppressed the P-FoxO3 level. Hesperidin pretreatment protected neonatal HIE by reducing free radicals and activating phosphorylated Akt.
Collapse
|
43
|
Modeling Dense-Phase Pneumatic Conveying of Powders Using Suspension Density. PARTICULATE SCIENCE AND TECHNOLOGY 2013. [DOI: 10.1080/02726351.2012.660271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
44
|
First Report of Soybean Stem Blight Caused by Phomopsis longicolla in Guangdong Province, Southern China. PLANT DISEASE 2013; 97:844. [PMID: 30722618 DOI: 10.1094/pdis-10-12-1003-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In October 2011, a disease resembling stem blight of soybean was found in Zengcheng City, Guangdong Province, southern China. Symptoms began as a brown fusiform lesions on the stems, usually at the nodes. The lesions then darkened, elongated, and often girdled the stems, causing wilt of the above stems. The whole plant eventually died. There were many small, black, raised fruiting bodies in the lesions. The disease incidence was about 20%. Lesions with typical symptoms were sampled from diseased plants. Microscopic examination revealed that the fruiting bodies were pycnidia in which alpha-conidia were common but beta-conidia were rare. Alpha-conidia were hyaline, ellipsoidal to fusiform, guttulate, and measured 7.0 (4.3 to 10.0) × 3.0 (1.8 to 4.3) μm. The length/width ratio of alpha-conidia was 2.3 (1.4 to 4.5). Beta-conidia were hyaline, filiform, hamate, and measured 28.7 (18.2 to 35.7) × 1.8 (1.2 to 2.8) μm. A fungus was consistently isolated from the lesions on acidified potato dextrose agar (APDA, pH 4.5) at 25°C under intermittent fluorescent light (12 h daily). The colonies were floccose, dense, and white, with occasional green-yellow areas; the reverse was colorless with large, black stromata. To induce the production of fruiting bodies, autoclaved soybean stems were placed on the colonies growing on water agar at 25°C in darkness. Pycnidia with long beaks were observed on the stems 7 days later. The fungus was identified as Phomopsis longicolla (2). The rDNA internal transcribed spacer (ITS) region of the fungus was amplified with universal primers ITS4/ITS5 and sequenced (4). The sequences of two isolates were submitted to GenBank (Accession Nos. JX827608 and JX827609). BLASTn analysis showed that there was 99 to 100% similarity with sequences of P. longicolla deposited in GenBank (EF026104, AY857868, HQ130441, JF309198, JF309199, and AF132796). Pathogenicity tests were conducted on 14-day-old seedlings (cv. Huaxia 3) inoculated by placing mycelial plugs (5 mm in diameter and 4 days old) on slight cuts made on the lower stems (six replicates). The plugs were covered with a piece of wet cotton to maintain moisture. The control seedlings were treated the same but without mycelial plugs. All treated plants were incubated in 25°C in humid champers. Typical brown lesions with black raised pycnidia on the stems were observed 14 days after inoculation and P. longicolla was reisolated from these stem lesions. No disease was observed on control plants. To further verify that the fungus can cause seed decay, seeds were disinfected by 0.02% sodium hypochlorite and inoculated by putting them on the surface of the fungal colonies grown on APDA (pH 4.5) at 25°C. The control seeds were treated the same but without fungal colonies. All of the inoculated seeds decayed within 30 days whereas the control seeds maintained healthy. P. longicolla has been described as a pathogen causing serious stem blight and seed decay on soybean (3). The disease has been previously reported in Heilongjiang Province, northern China, but it was not known elsewhere in China (1). To our knowledge, this is the first report of P. longicolla on soybean in Guangdong Province, southern China. The pathogen may pose a serious threat to the production of soybean in this region of China. References: (1) Y. Cui et al. Plant Pathol. 58:779, 2009. (2) T. W. Hobbs et al. Mycologia 77:535, 1985. (3) S. Li et al. Plant Dis. 94:1035, 2010. (4) A. W. Zhang et al. Plant Dis. 81:1143, 1997.
Collapse
|
45
|
High fat diet induces signs of premature cardiac ageing in left ventricles. Thorac Cardiovasc Surg 2013. [DOI: 10.1055/s-0032-1332494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
46
|
Sequential exposure to specific antibody escape mutations may program neutralization breadth during subtype A HIV-1 infection. Retrovirology 2012. [PMCID: PMC3441627 DOI: 10.1186/1742-4690-9-s2-p104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
47
|
Structural analyses of antigen binding similarities and differences between rabbit and human anti-gp120 V3 mAbs. Retrovirology 2012. [PMCID: PMC3442065 DOI: 10.1186/1742-4690-9-s2-p76] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
|
48
|
Crystal structure analysis of anti-V2 mAb 2158 suggests a conformational epitope involving an N-linked glycan. Retrovirology 2012. [PMCID: PMC3442101 DOI: 10.1186/1742-4690-9-s2-p70] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
49
|
Value of three-dimensional hysterosalpingo-contrast sonography with SonoVue in the assessment of tubal patency. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2012; 40:93-98. [PMID: 22223543 DOI: 10.1002/uog.11085] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVE To investigate the accuracy of transvaginal three-dimensional hysterosalpingo-contrast sonography using SonoVue (3D SonoVue-HyCoSy) in the assessment of Fallopian tubal patency. METHODS We recruited 75 infertile patients undergoing 3D SonoVue-HyCoSy before standard diagnostic laparoscopy with chromotubation (lap and dye). Tubal patency was assessed by automated 3D coded contrast imaging (3D SonoVue-HyCoSy), and the findings were compared with the results of lap and dye. RESULTS For detecting tubal patency among the 150 Fallopian tubes assessed, 3D SonoVue-HyCoSy had a sensitivity of 93.5%, specificity of 86.3%, positive and negative predictive values of 87.8% and 92.6%, respectively, and diagnostic accuracy of 90.0%. The test-positive rates of 3D SonoVue-HyCoSy vs lap and dye were not significantly different (82/150 vs 77/150, P > 0.05). CONCLUSION 3D SonoVue-HyCoSy should be considered clinically valuable as a practical, non-invasive, primary investigatory tool for evaluating tubal patency.
Collapse
|
50
|
Changes in histone acetylation during oocyte meiotic maturation in the diabetic mouse. Theriogenology 2012; 78:784-92. [PMID: 22541329 DOI: 10.1016/j.theriogenology.2012.03.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Revised: 03/13/2012] [Accepted: 03/14/2012] [Indexed: 02/05/2023]
Abstract
Although there is considerable evidence that diabetes can adversely affect meiosis in mammalian oocytes, acetylation status of oocytes in a diabetic environment remains unclear. The objective was to determine acetylation or deacetylation patterns (based on immunostaining) of H3K9, H3K14, H4K5, H4K8, H4K12, and H4K16 sites at various stages during meiosis in murine oocytes from control and diabetic mice. According to quantitative real time polymerase chain reaction (qPCR), mean ± SEM relative expression of Gcn5 (1.70 ± 0.14 at metaphase [M]I and 1.27 ± 0.01 at MII, respectively), Ep300 (1.74 ± 0.04 at MI and 1.80 ± 0.001 at MII), and Pcaf (2.01 ± 0.03 at MI and 1.41 ± 0.18 at MII) mRNA in oocytes from diabetic mice were higher than those from controls (P < 0.05), whereas there was no difference (P > 0.05) during the germinal vesicle (GV) stage between the two groups (1.23 ± 0.04 for Gcn5, 0.82 ± 0.06 for Ep300, and 0.80 ± 0.07 for Pcaf). Conversely, relative mRNA expression concentrations of Hdac1, Hdac2, Hdac3, Sirt1 and Sirt2 during the germinal vesicle stage were lower in oocytes of diabetic mice (0.24 ± 0.03 for Hdac1, 0.11 ± 0.001 for Hdac2, 0.31 ± 0.03 for Hdac3, 0.28 ± 0.02 for Sirt1, and 0.55 ± 0.02 for Sirt2; P < 0.05). Similarly, the expression concentrations of these genes at the MI stage were lower in oocytes from diabetic mice (0.79 ± 0.12 for Hdac1, 0.72 ± 0.001 for Hdac2, 0.02 ± 0.001 for Sirt1, and 0.84 ± 0.08 for Sirt2; P < 0.05). Their expression concentrations at the MII stage were also lower in oocytes from diabetic mice (0.46 ± 0.03 for Hdac1, 0.93 ± 0.01 for Hdac2, 0.56 ± 0.01 for Hdac3, 0.01 ± 0.002 for Sirt1, and 0.84 ± 0.04 for Sirt2; P < 0.05). At the MI stage, however, there was no difference in the expression of Hdac3 between the two groups of oocytes (0.96 ± 0.03; P > 0.05). Taken together, diabetes altered the intracellular histone modification system, which may have contributed to changes in histone acetylation, and may be involved in the compromised maturation rate of oocytes in diabetic humans.
Collapse
|