[hsa_circ_0001776 targeting miR-1265 regulates the development of lung squamous cell carcinoma and clinical significance].

Objective: To further explore the role and mechanism of hsa_circ_0001776 and mir-1265 in lung squamous carcinoma by verifying the expression level of hsa_circ_0001776 in plasma, tissues, and cells of lung squamous carcinoma. Methods: Plasma was collected from patients with lung squamous carcinoma treated at Tangshan People's Hospital and healthy individuals from 2020 to 2022. Lung squamous carcinoma tissue microarrays purchased from Shanghai Xinchao Biotechnology Company in 2022. Real-time quantitative polymerase chain reaction (qRT-PCR) was used to detect the expression of hsa_circ_0001776 in lung squamous carcinoma plasma, tissues, and cells, and fluorescence in situ hybridization was used to verify the expression of hsa_circ_0001776 in lung squamous carcinoma. The localization of hsa_circ_0001776 in NCI-H1703 was verified by fluorescence in situ hybridization. The lung squamous carcinoma cells NCI-H1703 and NCI-H226 were cultured in vitro and divided into the circ-negative control (NC) group, hsa_circ_0001776 overexpression group, miR-NC group, miR-1265 mimic group, hsa_circ_0001776+miR-NC group, and hsa_circ_0001776+miR-1265 mimic group.The cell proliferation, motility and apoptosis were detected by the cell counting kit-8 (CCK-8) method, clone formation, Transwell invasion and migration, and scratch assay, and flow cytometry, respectively. The downstream of hsa_circ_0001776 was predicted by circular RNA interactome website, and the interaction between hsa_circ_0001776, miR-1265 was further determined by dual luciferase reporter gene assay, and nude mice subcutaneous tumorigenesis assay detected the growth of transplanted tumors. Results: Fluorescence in situ hybridization results showed that the fluorescence intensity of hsa_circ_0001776 in lung squamous carcinoma tissues was lower than that in paracancerous tissues, and the fluorescence intensity of miR-1265 in lung squamous carcinoma tissues was higher than that in paracancerous tissues (both P＜0.05). The expression level of hsa_circ_0001776 in the plasma of lung squamous carcinoma patients was lower than that in the plasma of healthy people, and the expression level of miR-1265 was higher than that in the plasma of healthy people (both P＜0.05). The expression levels of hsa_circ_0001776 in lung squamous carcinoma cells NCI-H1703, NCI-H226 and SK-MES-1 were lower than that in bronchial epithelial cells BEAS-2B (all P＜0.05), and the relative expression levels of miR-1265 in NCI-H1703 and NCI-H226 were higher than that in human bronchial epithelial cells BEAS -2B (all P＜0.05). The expression of hsa_circ_0001776 was correlated with age, lymph node metastasis, clinical stage, and tumor stage in patients with lung squamous carcinoma (all P＜0.05). Fluorescence in situ hybridization results showed that hsa_circ_0001776 was mainly expressed in the cytoplasm. The results of dual-luciferase reporter assay showed complementary binding of miR-1265 to hsa_circ_0001776. The absorbance values of the hsa_circ_0001776 overexpression group in NCI-H1703 and NCI-H226 cells were lower than that of the circ-NC group (P＜0.05). The number of cell clones in the hsa_circ_0001776 overexpressed group was (52±3) and (53±4), the number of migrating cells was (476±17) and (113±7), the number of invading cells was (100±2) and (184±2), and the cell migration rate was (25.00±4.36)% and (36.02±5.55)%, which were lower than those of the circ-NC group [(104±4) and (106±2), (783±29) and (517±16), (657±45) and (473±9), (48.95±8.69)% and (48.70±1.57)%, all P＜0.05]. The apoptosis rates in the overexpression hsa_circ_0001776 group were (24.77±2.303)% and (19.67±1.16)%, respectively, both higher than those in the circ-NC group [(11.83±1.15)% and (9.50±0.66)%, respectively, both P＜0.05]. MiR-1265 mimic group had a higher apoptotic rate in the NCI-H1703 and NCI-H226 than those of the miR-NC groups (P＜0.05). miR-1265 mimic group had (56±13) and (51±8) cell clones, (556±13) and (405±6) migrating cells, (486±6) and (359±7) invading cells, cell migration rates of (68.56±5.51)%, (81.74±8.04)%, were higher than those of miR-NC group [(31±4) and (21±8), (154±19) and (186±5), (227±6) and (176±7), (25.83±4.26)% and (53.12±4.14) %, all P＜0.05]. The apoptotic rates in the miR-1265 mimic group were (11.83±2.55)% and (17.50±1.05)%, respectively, which were lower than those in the miR-NC group [(32.67±4.44)% and (39.90±2.88)%, respectively, both P<0.05]. The absorbance values of NCI-H1703 and NCI-H226 in the overexpression of hsa_circ_0001776+miR-1265 mimic group were higher than those of the overexpression of hsa_circ_0001776+miR-NC group (P<0.05). The overexpression of hsa_circ_0001776+miR-1265 mimic group had (128±15) and (133±8) cell clones, (623±10) and (310±7) migrating cells, (643±16) and (420±7) invading cells, (66.39±4.46)% cell migration rate and (68.60±3.53)%, were higher than those of the hsa_circ_0001776+miR-NC group [(86±7) and (80±16), (380±11) and (115±5), (152±7) and (94±4), respectively, (31.41±5.91)% and (30.94±0.67)%, all P＜0.05]. The apoptotic rates in the overexpression of hsa_circ_0001776+miR-1265 mimic group were (19.27±0.15)% and (11.53±0.75)%, respectively, both lower than those in the overexpression of hsa_circ_0001776+miR-NC group [(27.77±1.29)% and (18.43±0.71)%, both P＜0.05]. The results of the subcutaneous tumorigenesis assay in nude mice showed that the volume of tumors in the overexpression of hsa_circ_0001776 group was lower than that in the circ-NC group (P＜0.05). Conclusion: hsa_circ_0001776 is downregulated in lung squamous cell carcinoma, and hsa_circ_0001776 can inhibit the development of lung squamous cell carcinoma by targeting miR-1265.

[Comparative study of ultra-high field diffusion-weighted MRI imaging between hepatocellular carcinoma and paracancerous, distant cancerous, and background liver tissues].

Objective: To investigate the differences in multi-b-value apparent diffusion coefficient (ADC) and exponential apparent diffusion coefficient (eADC) between hepatocellular carcinoma (HCC) and paracancerous liver tissue, distant cancerous liver tissue, and background liver tissues by ultra-high field 3.0T diffusion-weighted (DWI) MRI imaging. Methods: Sixty-eight consecutive HCC cases confirmed by surgical pathology from January 2018 to October 2021 were enrolled and divided into a cirrhosis (n=39) and a non-cirrhosis group (n=29) according to the presence or absence of cirrhosis.The average ADC and eADC of liver tissues of paracancerous (including proximal and distal), distant cancerous, and background were measured by DWI images with diffusion sensitivity factors (b) of 50, 100, 400, 600 s/mm2, and 1 000 s/mm2, respectively. The Kruskal-Wallis H test and Bonferroni method were used to test the differences between the measured values of the five tissues. The statistical differences were used to evaluate the diagnostic efficacy of the five tissues by parametric receiver operating characteristic (ROC) curve and area under the curve (AUC). Results: The comparison of average ADC and eADC among five types of tissues in the liver cirrhosis group showed that the average ADC and eADC measured at b values of 50, 100, 400, and 600 s/mm2 had statistically significant differences (adjusted P<0.005) between cancerous and proximal paracancerous, distal paracancerous, distant cancerous, and background liver tissue, as well as the average ADC measured at b=1 000 s/mm2 between cancerous and proximal paracancerous tissue. The average ADC and eADC in the non-cirrhosis group had statistically significant differences (adjusted P<0.005) between cancerous and proximal paracancerous, distant paracancerous, distant cancerous, and background liver tissue measured at b values of 50, 100, and 400 s/mm2, respectively. The average ADC and eADC measured at b=600 s/mm2 showed statistically significant differences (adjusted P<0.005) between cancerous and proximal paracancerous, distal paracancerous, and distant cancerous liver tissue, as well as the average ADC measured at b=1 000 s/mm2 between cancerous and distal paracancerous, and distant cancerous liver tissue. The average ADC and eADC in the cirrhosis group had no statistically significant difference between the proximal paracancerous and the distant cancerous, as well as the background liver tissue measured at b-values of 50, 100, 400, 600, and 1 000 s/mm2, respectively (adjusted P>0.005), while there were statistically significant differences (adjusted P<0.005) in the average ADC values in the non-cirrhosis group between the proximal paracancerous and the distant paracancerous and background liver tissues at b=50 s/mm2, as well as the average ADC and eADC values between the proximal paracancerous and the distant liver tissues at b=100 s/mm2. The average ADC and eADC values measured in the cirrhosis group and non-cirrhosis group had no statistically significant difference between the distant paracancerous, distant cancerous, and background liver tissue (adjusted P>0.005). The efficacy of average ADC and eADC in distinguishing five types of tissues (cancerous and proximal paracancerous, distant paracancerous, distant cancerous, and background liver tissue) showed that in the cirrhosis group, the diagnostic efficacy was best at b=50 s/mm2. The area under the ROC curve (AUC) of average ADC was 0.815, 0.828, 0.855, and 0.855, respectively, and the AUC of average eADC was 0.815, 0.830, 0.856, and 0.855, respectively. The diagnostic efficacy was best in the non cirrhosis group at b=100 s/mm2, with average ADC AUCs of 0.787, 0.823, 0.841, and 0.821, and average eADC AUCs of 0.836, 0.874, 0.893, and 0.873, respectively. The AUC of the average ADC in the non-cirrhosis group for distinguishing between proximal paracancerous and distant cancerous liver tissues, as well as proximal paracancerous and background liver tissues, with b=50 s/mm2, were 0.605 and 0.604, respectively. The average AUC of ADC and eADC for distinguishing between proximal paracancerous and distant liver tissues with b=100 s/mm2 were 0.619 and 0.620, respectively. Conclusion: The average ADC and eADC measured by multiple b-values are helpful in distinguishing HCC from proximal paracancerous, distal paracancerous, distant-cancerous, and background liver tissues in patients with cirrhosis and non-cirrhosis, while the average ADC and eADC at b=50 s/mm2 and 100 s/mm2 exhibit differences between the proximal paracancerous from the distant cancerous liver tissue and background liver tissue in patients with non-cirrhosis.

Avoided Quantum Tricritical Point and Emergence of a Canted Magnetic Phase in LaCr_{1-x}Fe_{x}Sb_{3}.

New phases or new phenomena are often observed near-zero temperature phase transitions. These new effects represent nature's way of avoiding quantum critical phase transitions. Here, we look at the quantum tricritical point (QTCP), the special case where two transitions are driven to zero temperature at the same time. Unlike the case of quantum critical points, the avoidance of quantum tricritical points has yet to be demonstrated. Using chemical substitution and a magnetic field, we drive LaCrSb_{3} toward a quantum tricritical point. For the first time near a QTCP, we observe the emergence of a new magnetic phase and the avoidance of the QTCP via a first order phase transition.

[Kaixinsan alleviates adriamycin-induced depression-like behaviors in mice by reducing ferroptosis in the prefrontal cortex].

OBJECTIVE: To investigate the effect of Kaixinsan (KXS, a traditional Chinese medicine formula) for alleviating adriamycin-induced depression-like behaviors in mice bearing breast cancer xenografts and explore the pharmacological mechanism. METHODS: Forty female BALB/c mice were randomized equally into control group, model group, and low- and high-dose KXS treatment groups, and in the latter 3 groups, mouse models bearing orthotopic breast cancer 4T1 cell xenografts were established and treated with adriamycin along with saline or KXS via gavage. Depression-like behaviors of the mice were assessed using open field test and elevated plus-maze test, and the changes in serum levels of depression-related factors were examined. RNA-seq analysis and transmission electron microscopy were used and ferroptosis-related factors were detected to explore the mechanisms of adriamycin-induced depression and the therapeutic mechanism of KXS. The results were verified in SH-SY5Y cells using ferroptosis inhibitor Fer-1 as the positive control. RESULTS: KXS significantly alleviated depression-like behaviors and depression-related serological changes induced by adriamycin in the mouse models. RNA-seq results suggested that KXS alleviated chemotherapy-induced depression by regulating oxidative stress, lipid metabolism and iron ion binding in the prefrontal cortex. Pathological analysis and detection of ferroptosis-related factors showed that KXS significantly reduced ferroptosis in the prefrontal cortex of adriamycin-treated mice. In SH-SY5Y cells, both KXS-medicated serum and the ferroptosis inhibitor were capable of attenuating adriamycin-induced cell ferroptosis. CONCLUSION: KXS alleviates adriamycininduced depression-like behaviors in mice by reducing ferroptosis in the prefrontal cortex of breast cancer-bearing mice.

[An MRI multi-sequence feature imputation and fusion mutual-aid model based on sequence deletion for differentiation of high-grade from low-grade glioma].

OBJECTIVE: To evaluate the performance of magnetic resonance imaging (MRI) multi-sequence feature imputation and fusion mutual model based on sequence deletion in differentiating high-grade glioma (HGG) from low-grade glioma (LGG). METHODS: We retrospectively collected multi-sequence MR images from 305 glioma patients, including 189 HGG patients and 116 LGG patients. The region of interest (ROI) of T1-weighted images (T1WI), T2-weighted images (T2WI), T2 fluid attenuated inversion recovery (T2_FLAIR) and post-contrast enhancement T1WI (CE_T1WI) were delineated to extract the radiomics features. A mutual-aid model of MRI multi-sequence feature imputation and fusion based on sequence deletion was used for imputation and fusion of the feature matrix with missing data. The discriminative ability of the model was evaluated using 5-fold cross-validation method and by assessing the accuracy, balanced accuracy, area under the ROC curve (AUC), specificity, and sensitivity. The proposed model was quantitatively compared with other non-holonomic multimodal classification models for discriminating HGG and LGG. Class separability experiments were performed on the latent features learned by the proposed feature imputation and fusion methods to observe the classification effect of the samples in twodimensional plane. Convergence experiments were used to verify the feasibility of the model. RESULTS: For differentiation of HGG from LGG with a missing rate of 10%, the proposed model achieved accuracy, balanced accuracy, AUC, specificity, and sensitivity of 0.777, 0.768, 0.826, 0.754 and 0.780, respectively. The fused latent features showed excellent performance in the class separability experiment, and the algorithm could be iterated to convergence with superior classification performance over other methods at the missing rates of 30% and 50%. CONCLUSION: The proposed model has excellent performance in classification task of HGG and LGG and outperforms other non-holonomic multimodal classification models, demonstrating its potential for efficient processing of non-holonomic multimodal data.

[Clinical efficacy and safety of liposomal amphotericin B in the salvage treatment of invasive fungal disease in patients with hematological diseases].

Objective: To investigate the efficacy and safety of liposomal amphotericin B (L-AmB) for the salvage treatment of invasive fungal disease (IFD) in patients with hematological diseases. Methods: Data were retrospectively collected from 80 patients with hematological issues treated with L-AmB between June 2023 and December 2023 after failure of previous antifungal therapy. Baseline patient information, clinical efficacy, and factors affecting the efficacy of L-AmB were analyzed by logistic regression. Moreover, adverse effects associated with L-AmB were evaluated. Results: Among the 80 patients, 9 (11.2%) had proven IFD, 43 (53.8%) had probable IFD, and 28 (35.0%) had possible IFD. The efficacy rate of L-AmB salvage therapy for IFD was 77.5%, with a median daily dose of 3 (range: 1-5) mg·kg(-1)·d(-1) and a median dosing course of 14 (range: 8-25) days. Multivariate logistic regression analysis showed that the disease remission status (OR=4.337, 95% CI 1.167-16.122, P=0.029) and duration of medication (OR=1.127, 95% CI 1.029-1.234, P=0.010) were independent factors affecting the efficacy of L-AmB. The incidence of infusion reactions associated with L-AmB, including fever and chills, was 5.0%. The incidence of hypokalemia was 28.8% (predominantly grades 1-2), and the incidence of nephrotoxicity was 11.3% (predominantly grades 1-2) . Conclusion: L-AmB is safe and effective in the treatment of patients with IFD who are intolerant to or who have experienced no effect of previous antifungal therapy, with a low rate of adverse reactions.

Evaluation indicators for access to cancer screening services: a scoping review.

OBJECTIVES: Access to health services has received increasing attention, and the International Agency for Research on Cancer (IARC) includes 'availability' as one of the indicators to evaluate cancer screening. Evaluating, monitoring, and decision-making on cancer screening depends on systematic quantitative evidence on access to cancer screening, but indicators are currently inconsistently, if they are reported at all. This can be improved by developing systematic indicators for evaluating and reporting access to cancer screening. This requires a thorough understanding of current indicators of access to cancer screening. STUDY DESIGN: Scoping review. METHODS: We completed a scoping review of studies on access to cancer screening services from 2013 to 2022. The relevant indicators were extracted, quantified, and then matched to two widely used frameworks: a universal five-dimensional conceptual framework for access to healthcare ('U5D') and a cancer-specific framework/list on the availability/use of screening indicators endorsed by the IARC. RESULTS: A total of 331 studies on access to cancer screening services were included. Based on the U5D framework, publications from supply side reported approachability (number of publications = 16), acceptability (6), availability and accommodation (44), affordability (30), and appropriateness (11); among this process, 17 sub-indicators were identified. Correspondingly, publications from demand side reported ability to perceive (170), ability to seek (85), ability to reach (58), ability to pay (59), and ability to engage (2); 26 sub-indicators were identified. More macroscopically, the publications of the IARC-endorsed indicators reported availability of policies and guidelines for screening (13), type of screening provided (3), extent of population coverage and participation rates (76), and demographic/behavioural related considerations (167). By integrating the universal and cancer-specific frameworks, a new adapted framework was proposed. CONCLUSIONS: This study identified and collated indicators for evaluating access to cancer screening services, and determined the gaps in the current application of various indicators. The findings are anticipated to facilitate further development of an evaluation indicator system for access to cancer screening services.

A comprehensive molecular phylogeny of Cephalotrichum and Microascus provides novel insights into their systematics and evolutionary history.

The genera Cephalotrichum and Microascus contain ecologically, morphologically and lifestyle diverse fungi in Microascaceae (Microascales, Sordariomycetes) with a world-wide distribution. Despite previous studies having elucidated that Cephalotrichum and Microascus are highly polyphyletic, the DNA phylogeny of many traditionally morphology-defined species is still poorly resolved, and a comprehensive taxonomic overview of the two genera is lacking. To resolve this issue, we integrate broad taxon sampling strategies and the most comprehensive multi-gene (ITS, LSU, tef1 and tub2) datasets to date, with fossil calibrations to address the phylogenetic relationships and divergence times among major lineages of Microascaceae. Two previously recognised main clades, Cephalotrichum (24 species) and Microascus (49 species), were re-affirmed based on our phylogenetic analyses, as well as the phylogenetic position of 15 genera within Microascaceae. In this study, we provide an up-to-date overview on the taxonomy and phylogeny of species belonging to Cephalotrichum and Microascus, as well as detailed descriptions and illustrations of 21 species of which eight are newly described. Furthermore, the divergence time estimates indicate that the crown age of Microascaceae was around 210.37 Mya (95 % HPD: 177.18-246.96 Mya) in the Late Triassic, and that Cephalotrichum and Microascus began to diversify approximately 27.07 Mya (95 % HPD: 20.47-34.37 Mya) and 70.46 Mya (95 % HPD: 56.96-86.24 Mya), respectively. Our results also demonstrate that multigene sequence data coupled with broad taxon sampling can help elucidate previously unresolved clade relationships. Citation: Wei TP, Wu YM, Zhang X, et al. 2024. A comprehensive molecular phylogeny of Cephalotrichum and Microascus provides novel insights into their systematics and evolutionary history. Persoonia 52: 119-160. https://doi.org/10.3767/persoonia.2024.52.05 .

[Cytoplasmic light-chain immunofluorescence combined with FISH in bone marrow smears to detect cytogenetic abnormalities in multiple myeloma].

Objective: To analyze the sensitivity of cytoplasmic light-chain immunofluorescence with fluorescence in situ hybridization in bone marrow smears (new FISH) for detecting cytogenetic abnormalities in multiple myeloma (MM) . Methods: 42 MM patients admitted to the First Affiliated Hospital of Nanjing Medical University from April 2022 to October 2023 were enrolled. The patients with MM were detected by new FISH and CD138 immunomagnetic bead sorting technology combined with FISH (MACS-FISH) or cytoplasmic immunoglobulin FISH (cIg-FISH) to analyze cytogenetic detection results using combination probes which included 1q21/1p32, p53, IgH, IgH/FGFR3 [t (4;14) ], and IgH/MAF [t (14;16) ]. Results: In 23 patients with MM, the abnormality detection rates of cIg-FISH and new FISH were 95.7% and 100.0%, respectively (P>0.05). The detection rates of 1q21+, 1p32-, p53 deletion, and IgH abnormalities by cIg-FISH and new FISH were consistent, which were 52.2%, 8.7%, 17.4%, and 65.2%, respectively. The results of the two methods further performed with t (4;14) and t (14;16) in patients with IgH abnormalities were identical. The positive rate of t (4;14) was 26.7%, whereas t (14;16) was not detected. In 19 patients with MM, the abnormality detection rates of MACS-FISH and new FISH were 73.7% and 63.2%, respectively (P>0.05). The positivity rate of 1q21+, 1p32- and IgH abnormalities detected by MACS-FISH were slightly higher than those detected by new FISH; however, the differences were not statistically significant (all P values >0.05) . Conclusion: The new FISH method has a higher detection rate of cytogenetic abnormalities in patients with MM and has good consistency with MACS-FISH and cIg-FISH.

A systematic review of the gut microbiome, metabolites, and multi-omics biomarkers across the colorectal cancer care continuum.

The gut microbiome and the microbial metabolome contribute to treatment efficacy and treatment outcomes across the cancer care spectrum. This study systematically reviewed the existing literature between 2007 to March 2022 to elucidate the role of gut microbiota-metabolite biomarkers in colorectal cancer (CRC) care and treatment-related outcomes. Using Covidence, all studies identified were screened by title and abstract, followed by a full-text review using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines and data extraction. We analysed 13 non-experimental and 9 experimental CRC studies and found that, usually, the α-diversity of the gut microbiome and short-chain fatty acids decreased in CRC patients, while amino acids (e.g. glutamate) increased in CRC patients. Correlations between specific gut microbial taxa and metabolites were identified, with amino acids, fatty acids, and glycerol positively associated with certain gut microbes. Interventions promoting gut microbes and microbial metabolites associated with better health outcomes (e.g. Bifidobacterium, Lactobacillus, butyric acid, and bile acid) can potentially promote treatment efficacy and improve cancer care outcomes. Gut microbial metabolism should be integrated into targeted cancer interventions for CRC patients, given the confirmed role of the gut microbiome and metabolome pathways across the CRC care continuum.

Analysis of postoperative recurrence-free survival in non-small cell lung cancer patients based on consensus clustering.

AIMS: This study aims to assess whether consensus clustering, based on computed tomography (CT) radiomics from both intratumoral and peritumoral regions, can effectively stratify the risk of non-small cell lung cancer (NSCLC) patients and predict their postoperative recurrence-free survival (RFS). MATERIALS AND METHODS: A retrospective analysis was conducted on the data of surgical patients diagnosed with NSCLC between December 2014 and April 2020. After preprocessing CT images, radiomic features were extracted from a 9-mm region encompassing both the tumor and its peritumoral area. Consensus clustering was utilized to analyze the radiomics features and categorize patients into distinct clusters. A comparison of the differences in clinical pathological characteristics was conducted among the clusters. Kaplan-Meier survival analysis was employed to investigate differences in survival among the clusters. RESULTS: A total of 266 patients were included in this study, and consensus clustering identified three clusters (Cluster 1: n=111, Cluster 2: n=61, Cluster 3: n=94). Multiple clinical risk factors, including pathological TNM staging, programmed cell death ligand 1 (PD-L1), and epidermal growth factor receptor (EGFR) expression status exhibit significant differences among the three clusters. Kaplan-Meier survival analysis demonstrated significant variations in RFS across the clusters (P<0.001). The 3-year cumulative recurrence-free survival rates were 76.5% (95% CI: 68.6-84.4) for Cluster 1, 45.9% (95% CI: 33.4-58.4) for Cluster 2, and 41.5% (95% CI: 31.6-51.5) for Cluster 3. CONCLUSIONS: Consensus clustering of CT radiomics based on intratumoral and peritumoral regions can stratify the risk of postoperative recurrence in patients with NSCLC.

[Related factors of acute symptomatic seizures and epilepsy in children with myelin oligodendrocyte glycoprotein antibody-associated disease].

Objective: To investigate the risk factors of acute symptomatic seizures (ASS) and epilepsy in children with myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD). Methods: A ambispective cohort study was used including 74 children with MOGAD who were admitted to the Department of Pediatrics of Peking University First Hospital from January 2013 to June 2023 and were followed up. Demographic information, clinical information, treatment status, ASS and epilepsy status were collected. The clinical phenotypes were classified. According to the presence or absence of ASS in the course of disease, the children and the course of disease were divided into groups with and without ASS. Chi-square test, Fisher exact test and Mann Whitney U test were used to analyze the correlation between symptoms and auxiliary examination characteristics and the occurrence of ASS in the two groups of children. Multivariate Logistic regression analysis was used for multivariate analysis. Results: The onset age of the 74 children with MOGAD was 6.58 (3.80, 9.67) years, including 38 females (51.4%) and 36 males (48.6%). The duration of the final follow-up was 2.67 (1.10, 4.12) years, with a total of 239 times acute clinical episodes. ASS occurred in 39.2% (29/74) children during the course of disease and in 29.3% (70/239) of attacks. The common phenotypes were ADEM (67 times (28.0%)), optic neuritis (37 times (15.4%)) and cerebral cortical encephalitis (31 times (13.0%)) in 239 times acute clinical episodes. The incidence of ASS in ADEM and cerebral cortical encephalitis phenotype was 28.4%(19/67) and 100.0% (31/31), respectively. Multivariate analysis showed that cortical involvement on magnetic resonance imaging during clinical attacks was an independent risk factor for ASS (ß=-1.49, OR=0.23) after excluding attacks involving only optic nerve or spinal cord (49 episodes). During the follow-up, 5 children (6.8%) had epilepsy, and all children with epilepsy had multiple clinical attacks of MOGAD and previous ASS. Conclusions: Cortical involvement on magnetic resonance imaging during clinical episodes is an independent risk factor for ASS in children with MOGAD. All MOGAD children with epilepsy had ASS and multiple MOGAD clinical episodes in the past.

[Analysis of clinical characteristics and causes of death in 38 patients with pneumoconiosis].

Objective: To analyze the clinical characteristics and causes of death of patients with pneumoconiosis, and to provide evidence for the prevention and management of pneumoconiosis. Methods: From June 2022 to July 2023, 38 dead patients with pneumoconiosis confirmed by Shandong Academy of Occupational Health and Occupational Medicine were selected as the research objects. The clinical data of patients were collected through hospital information system (HIS) and laboratory information management system (LIS) to analyze the basic situation of patients with pneumoconiosis who died, the distribution of industry types, the course of disease, the nature of work, the type of reimbursement, complications/comorbidities, and the direct causes of death. Univariate analysis of variance was used to compare the course of pneumoconiosis death in patients with different age of exposure to dust. Results: Among the 38 patients with pneumoconiosis, there were 37 males and 1 female. The age of exposure to dust was 5-37 (19.29±8.17) years, the duration of disease was 5-41 (20.26±8.53) years, and the age of death was 27-86 (70.42±12.26) years old. There were 10 cases of stage Ⅰ pneumoconiosis, 18 cases of stage Ⅱ, 10 cases of stage Ⅲ pneumoconiosis and 32 cases (84.21%) of silicosis. There were 30 (78.95%) people aged ≥65 years and 8 (21.05%) people aged <65 years. The industry was mainly metal products (18 workers, 47.37%), and the distribution of work was mainly excavation workers (11 workers, 28.95%). The death course of pneumoconiosis patients with 10-<30 years of exposure to dust accounted for 76.32% (29/38). The average course of pneumoconiosis patients with 20-<30 years of exposure to dust was the longest[ (24.00±9.39) years], and there was no statistically significant difference in the average course of disease among different age of exposure to dust groups (F=1.81, P=0.165). The working units of the deceased patients were private enterprises or factories, and the hospitalization expenses were borne by individuals for 21 people (55.26%). The working unit was a state-owned enterprise, and 17 people (44.74%) were reimbursed for hospitalization expenses and work-related injuries. The main comorbidities/complications of pneumoconiosis patients were respiratory infection in 18 cases (47.37%) and chronic pulmonary heart disease (47.37%). The top 3 direct causes of death were pneumoconiosis in 13 cases (34.21%), pulmonary infection in 10 cases (26.32%) and lung cancer in 7 cases (18.42%) . Conclusion: Most of 38 cases of pneumoconiosis patients death diseases such as multiple combination of respiratory system, cardiovascular system, respiratory system disease is a major cause of death in pneumoconiosis patients.

[Clinical analysis of adverse reactions in patients with multidrug-resistant and rifampicin-resistant pulmonary tuberculosis treated with delamanid-containing regimen].

Objective: To explore the characteristics of adverse drug reactions during the 24-week therapy with delamanid-containing regimen for patients with multidrug-resistant and rifampicin-resistant pulmonary tuberculosis (MDR/RR-PTB). Methods: The prospective multicenter study was conducted from June 2020 to June 2023. A total of 608 eligible patients with MDR/RR-PTB were enrolled in 26 tuberculosis medical institutions in China including 364 males and 79 females, aged 39.6(19.0-68.0) years. Patients were treated with chemotherapy regimens containing delamanid. Patients were closely supervised during treatment of medication, and all adverse reactions occurring during treatment were monitored and recorded. The clinical characteristics of adverse reactions were evaluated by descriptive analysis. Chi-square test and multivariate logistic regression were used to analyze the related factors of QTcF interval prolongation (QT corrected with Fridericia's formula). Results: Of the 608 patients enrolled in this study, 325 patients (53.5%) reported 710 adverse events within 24 weeks of treatment. The top 6 most common complications were hematological abnormalities (143 patients, 23.5%), QT prolongation (114 patients, 18.8%), liver toxicity (85 patients, 14.0%), gastrointestinal reaction (41 patients, 6.7%), peripheral neuropathy (25 patients, 4.1%) and mental disorders (21 patients, 3.5%). The prolongation of QT interval mostly occurred in the 12th week after the first dose of medication. Serious adverse reactions occurred in 21 patients (3.5%). There were 7 patients (1.2%) with mental disorders, including 2 patients (0.3%) with severe mental disorders. Conclusions: The safety of dalamanid-based regimen in the staged treatment of MDR/RR-PTB patients was generally good, and the incidence of adverse reactions was similar to that reported in foreign studies. This study found that the incidence of QT interval prolongation in Chinese patients was higher than that reported overseas, suggesting that the monitoring of electrocardiogram should be strengthened when using drugs containing delamanid that may cause QT interval prolongation.