Breast cancer (BC) is a female malignant tumor with high incidence rate worldwide, and its disease burden continues to grow. Previous studies have demonstrated that there is a close association between changes of glucolipid metabolism indicators and risk of BC. Abnormal glucolipid metabolism may affect the occurrence and development of breast cancer by mediating chronic inflammatory states, affecting signaling pathways, promoting oxidative stress, affecting sex hormone levels and their biological activities, and driving endocrine dysfunction in adipose tissue. This paper systematically reviews the relationship between glucolipid metabolism indicators and risk of BC, aiming to point out the direction for further research on the relationship between glucolipid metabolism and BC, and to provide a reference basis for breast cancer risk assessment, early diagnosis, and prevention and treatment strategies.

Objective: To understand the current status and associated factors of sleep problems among preschool children in Hainan Province, so as to provide scientific evidence for improving sleep health in this population. Methods: From January 2021 to June 2022, a total of 4 105 preschool children aged 3-6 years from 62 kindergartens in Hainan Province were selected using stratified cluster random sampling method. Demographic information and lifestyle habits were collected through the Hainan Province Child Growth and Development Survey Questionnaire. The Children s Sleep Habits Questionnaire (CSHQ) was employed to assess sleep status. Unconditional binary Logistic regression model was applied to investigate the associated factors of sleep problems among preschool children. Results: The overall CSHQ score for children was 58.03±18.84, with 80.95% of preschool children exhibiting sleep related issues. The top three most prevalent sleep problem domains were bedtime resistance (72.42%), sleep anxiety ( 54.88 %), and parasomnias (38.86%). Logistic regression analysis revealed that higher family annual income ( OR=0.60, 95%CI = 0.45-0.79), higher maternal education level ( OR=0.53, 95%CI =0.32-0.89), regular or daily vitamin D supplementation ( OR=0.77, 95%CI =0.60-0.99), and fully self initiated eating behavior ( OR=0.71, 95%CI =0.59-0.85) were negatively related with children s sleep problems; in addition, screen exposure ( OR=1.27, 95%CI =1.06-1.51) and picky eating ( OR= 1.47 , 95%CI =1.21-1.78) were positively related to children s sleep problems (all P <0.05). Conclusion The high detection rate of sleep problems among preschool children in Hainan Province is multifactorially associated with family environment, dietary habits, and lifestyle behaviors.

Objective To compare the imaging characteristics and surgical methods of pulmonary nodules in the external 1/3 group and internal 2/3 group. Methods A retrospective analysis of clinical data from patients who underwent thoracoscopic preoperative CT-guided lung nodule localization at the Department of Radiology, the First Affiliated Hospital of Xiamen University from September 2020 to April 2022 was conducted. Results A total of 215 patients were enrolled (247 pulmonary nodules), including 70 males and 145 females, with a median age of 48 years. Based on the location of the nodules under CT guidance, those located in the external 1/3 area of the lung were classified into an external 1/3 group, while those located in the middle 1/3 and inner 1/3 areas were classified into an internal 2/3 group. There was no statistical difference between the two groups in terms of general clinical data, nature of pulmonary nodules, distribution of pulmonary nodules in lobes, localization time, or localization complications (P>0.05). However, there were statistical differences in the distance of pulmonary nodules from the pleura [0.6 (0.0-1.9) cm vs. 1.8 (0.0-4.5) cm, P<0.001], size of pulmonary nodules [0.7 (0.2-1.8) cm vs. 1.0 (0.2-2.0) cm, P<0.001], and surgical methods (P=0.002). In the external 1/3 group, 92.1% of nodules underwent thoracoscopic wedge resection, while fewer patients underwent other procedures; in the internal 2/3 group, 77.1% of nodules underwent thoracoscopic wedge resection, and 19.3% underwent segmentectomy. Conclusion The diameter of pulmonary nodules, the distance of pulmonary nodules from the pleura, and surgical methods differ between the external 1/3 group and internal 2/3 group. Thoracic surgeons can develop more precise surgical plans based on the location and size of pulmonary nodules.

Abstract Hyperuricemia (HUA) is a metabolic disorder syndrome caused by purine metabolism dysregulation, and its prevalence increases year by year. The development and progression of HUA are accompanied by significant alterations in the composition of intestinal microbiota, making probiotics a potential and safe method to reduce serum uric acid. Probiotics ameliorate HUA through three pathways: competing with intestinal epithelial cells for purine absorption to decrease uric acid synthesis, inhibiting xanthine oxidase activity through modulation of inflammatory cytokines to reduce the conversion of purine to uric acid, as well as restoring and maintaining an orderly state of the gut microbiota to facilitate normal uric acid excretion. This article reviews the role of probiotics in ameliorating HUA, so as to provide the reference for the application of probiotics in the prevention and intervention of HUA.

Objective: To understand the influenza vaccination rate and related factors of children in Xiqing District of Tianjin, so as to provide a scientific basis for improving the influenza vaccination coverage rate among children. Methods: A stratified random cluster sampling method was employed to select junior high school students and below students from 15 schools in five directions(east, west, south, north, midland) in Xiqing District, Tianjin, involving 13 075 students. A questionnaire survey was conducted among parents of students to analyze the influenza vaccination rate of children in 2023-2024 flu season (October to March of the following year). A binary Logistic regression model was used to analyze the factors affecting influenza vaccination. Results: The influenza vaccination rate was 16.66% for children in Xiqing District of Tianjin, in 2023-2024 flu season, among them, the vaccination rate in kindergartens was the highest (28.86%), followed by primary schools (18.87%) and junior high schools (12.61%). Binary Logistic regression analysis showed that having received the influenza vaccine during the 2020-2022 ( OR=10.55, 95%CI =9.48-11.73), parents awareness of influenza related knowledge ( OR=1.38, 95%CI =1.24-1.54), kindergarten children ( OR= 2.33 , 95%CI =1.91-2.83), primary school students ( OR=1.26, 95%CI =1.12-1.42), parents with a postgraduate degree or above ( OR=1.62, 95%CI =1.13-2.31), and a monthly average family income of 10 000-<20 000 yuan ( OR=1.67, 95%CI = 1.41- 1.99) were positive correlation factors with influenza vaccination of children ( P <0.05). Among parents of children who have not received the flu vaccine, 61.61% fully accepted flu vaccination or accepted but still considered. The most popular way for parents to obtain flu knowledge was flu prevention and control information from professional institutions during the flu season ( 77.38 %). Conclusions The influenza vaccination rate among kindergarten, as well as primary and junior high school students in Xiqing District of Tianjin is low. Promotion of influenza vaccination among children and increase the vaccination rate of influenza among children might help reduce the risk of campus flu outbreak.

Background With the large-scale production and application of carbon black nanoparticles (CBNPs), occupational and general exposure is obviously increasing. Related studies have shown that exposure to CBNPs can induce oxidative stress, inflammation, and DNA damage. Objective To establish a CBNPs-induced malignant transformation (C-BEAS-2B) model of human lung epithelial cells (BEAS-2B) and explore the role and mechanism of circCCDC138 in the malignant transformation process. Methods At 0, 10, 20, 40 and 80 μg·mL⁻¹ CBNPs concentrations, cell viability was detected by CCK8 assay. BEAS-2B cells were exposed to 20 mg·mL⁻¹ CBNPs for three months, and a malignant transformation model of BEAS-2B induced by CBNPs was constructed. The migration and invasion abilities of the cells were detected by cell scratch and Transwell assays. The expressions of circ-CCDC138 in BEAS-2B and C-BEAS-2B were detected by qRT-PCR, and its stability was verified by a digestive resistance test. A cell model with interference or overexpression of circCCDC138 was constructed, and the expression of circCCDC138 in the cells was detected by quantitative reverse transcription-PCR. The cell cycle and apoptosis were determined by flow cytometry. Western blot was used to analyze the expression of p53 protein. Results The CBNPs used in the experiment were spherical particles with a chain-like structure. In the 20 μg·mL⁻¹ CBNPs group, the reduction in the viability of BEAS-2B cells was relatively small (10%). Compared with the control cells, the 20 μg·mL⁻¹ CBNPs group showed more obvious cell migration and invasion at 24 h and 48 h, indicating that the exposure to CBNPs induced early malignant transformation of BEAS-2B cells (P<0.01). The circCCDC138 expression in C-BEAS-2B was upregulated in a time-dependent manner after exposure to CBNPs. Compared with the C-BEAS-2B cells, the C-BEAS-2B cells over-expressing circCCDC138 exhibited arrested S phase progression (36.9%) and apoptosis resistance (P<0.01), along with down regulation of p53 protein expression in the cells (P<0.01), while the C-BEAS-2B cells interfering with circCCDC138 showed the opposite results (P<0.01). Conclusion BEAS-2B cells exposed to CBNPs (20 μg·mL⁻¹) have significantly enhanced migration and invasion abilities, showing early malignant transformation characteristics. In addition, circCCDC138 is highly expressed in C-BEAS-2B cells with RNase R digestive resistance and increases in a time-dependent manner with CBNPs exposure. More importantly, circCCDC138 may promote the induction of malignant transformation of cells by inhibiting p53 protein expression.

Objective To obtain the protective performance parameters of barium sulfate mortar against positron nuclide γ-rays, provide reference data for precise shielding calculations, and guide the design, evaluation, and construction of radiation shielding. Methods The FLUKA program was used to build a model for simulating the dose equivalent rate variation around points of interest under the irradiation of the most commonly used positron nuclide ¹⁸F with changes in the thicknesses of lead and barium sulfate mortar. The transmission curves of lead and barium sulfate mortar were fitted, and the half-value layer (HVL) and lead equivalence of barium sulfate mortar were calculated based on the fitted curves. Results The ambient dose equivalent rate coefficient of positron nuclide ¹⁸F was 1.339 4×10⁻¹ μSv·m²/MBq·h and the HVL for lead was 4.037 mm, with deviations of 0.043% and 1.53% compared to the values provided in the AAPM Report No. 108, respectively. The HVLs for γ-rays produced by ¹⁸F, using barium sulfate mortar with apparent densities of 4.20, 4.00, and 3.90 g/cm³ mixed with 35.2-grade cement in a 4∶1 mass ratio, were 2.914, 2.969, and 3.079 cm, respectively. The lead equivalences were 0.1385, 0.1360, and 0.1311 mmPb/mm, respectively. Conclusion The three types of barium sulfate mortar can provide good protection against γ-rays in positron imaging locations. As the apparent density of barium sulfate increases, its protective effect improves slightly but remains significantly better than common construction materials like concrete and solid bricks.

Background China is a major coal producer and consumer country in the world. Coal workers' pneumoconiosis (CWP) is a primary factor endangering the occupational health of coal miners. Research on the disease burden of CWP and its changing trend is significant for disease prevention & control and associated policies. Objective To analyze the disease burden of CWP in China from 1990 to 2021 and its changing trend, and predict the disease burden from 2022 to 2035. Methods Using the Global Burden of Disease Study (GBD) database of 2021, numbers ofincident cases, prevalent cases, deaths, and disability-adjusted life years (DALYs) as well as crude and age-standardized rates of CWP in China were retrieved. Linear regression model was used to calculate the estimated annual percentage change (EAPC) of the age-standardized rates. Joinpoint regression model was used to analyze the temporal trend of disease burden and the disease burden of different sexes and age groups, and Bayesian age-period-cohort (BAPC) model was used to forecast the trend of CWP disease burden. Results In 1990, the incident, prevalent, and deaths cases of CWP in China were 3266, 18872, and 1561, respectively, and the DALYs of CWP were 44614.718 person-years. In 2021, the incident, prevalent, and deaths cases of CWP were 3446, 23975, and 1229, respectively, and the DALYs of CWP were 29610.754 person-years. From 1990 to 2021, the age-standardized incidence, prevalence, mortality, and DALYs rates of CWP in China all showed a downward trend, with the EAPCs of −3.121%, −2.532%, −4.018%, and −4.268%, respectively. The disease burden of CWP in China was mainly concentrated in the male population. The annual average percent change analysis indicated that each standardized rate showed a fluctuating downward trend in different periods. The BAPC model showed that from 2022 to 2035, the age-standardized rates of CWP in China would continue to decline steadily. In 2035, the age-standardized incidence, prevalence, mortality, and DALYs rates of CWP would be reduced to 0.10 per 100000, 0.74 per 100000, 0.03 per 100000, and 0.74 per 100000, respectively. Conclusion The disease burden contributed by CWP in China generally show a downward trend from 1990 to 2021, and it is expected that the age-standardized rates will continue to decline steadily from 2022 to 2035.

OBJECTIVES: To evaluate the protective effect of Schistosoma japonicum cystatin (rSj-Cystatin) in a mouse mode of "two-hit" sepsis. METHODS: Sixty male C57BL/6 mice randomized equally into sham-operated group, protein group, "two-hit" modeling group, and protein intervention group. In the former two groups, the mice received an intraperitoneal injection of 100 μL PBS followed by exposure of the cecum and then by intraperitoneal injection of 100 μL PBS or 25 μg rSj-Cystatin 30 min later; In the latter two groups, 100 μL PBS containing LPS (5 mg/kg) was injected intraperitoneally 24 h before cecal ligation and puncture (CLP), and 100 μL PBS or 25 μg rSj-Cystatin were injected 30 min after CLP. At 12 h after rSj-Cystatin treatment, 6 mice from each group were sacrificed for detection of TNF-α, IL-6, IL-10, TGF-β, iNOS and Arg-1 in the serum, spleen, liver, lung and kidney tissues using ELISA, for examinations of liver, lung and kidney pathologies with HE staining, and for analysis of CD3⁺CD4⁺CD25⁺Foxp3⁺ T cell percentage in the spleen using flow cytometry. The remaining mice were observed for general condition and 72-h survival. RESULTS: The 72-h survival rates in the 4 groups were 100%, 100%, 0% and 20%, respectively, showing significant differences between the latter two groups. The mouse models of "two-hit" sepsis exhibited obvious tissue pathologies and significant elevations of TNF-α and IL-6 in both the serum and tissue homogenate, which were significantly ameliorated by rSj-Cystatin treatment. Treatment with rSj-Cystatin also increased IL-10 and TGF-β levels and spleen CD3⁺CD4⁺CD25⁺Foxp3⁺ T cell percentage. The septic mouse models also showed increased iNOS levels in all the detected tissues and a decreased Arg-1 level in the kidney, and these changes were obviously improved by rSj-Cystatin treatment. CONCLUSIONS rSj-Cystatin has a protective effect against "two-hit" sepsis in mice by regulating the inflammatory microenvironment.
Animals ; Mice ; Sepsis/drug therapy* ; Male ; Schistosoma japonicum/chemistry* ; Mice, Inbred C57BL ; Cystatins/therapeutic use* ; Interleukin-10/metabolism* ; Interleukin-6/blood* ; Tumor Necrosis Factor-alpha/blood* ; Disease Models, Animal ; Transforming Growth Factor beta/metabolism*

Rheumatoid arthritis (RA) is an autoimmune disease characterized by complex pathogenesis, with its development closely linked to immune dysregulation. Regulatory T cells (Tregs), as specialized immunomodulatory cells, play a pivotal role in negatively regulating immune responses and maintaining autoimmune tolerance. In recent years, extensive research has focused on the relationship between Tregs and RA pathogenesis, with the functional role of CD8⁺ Tregs as a critical area of investigation. This review summarizes the alterations in CD8⁺ Tregs during RA progression and their potential mechanisms of action. By elucidating the diversity of CD8⁺ Treg subsets and their intricate roles in modulating immune responses, this analysis provides novel insights and therapeutic strategies for RA diagnosis and treatment.
Arthritis, Rheumatoid/pathology* ; Humans ; T-Lymphocytes, Regulatory/immunology* ; CD8-Positive T-Lymphocytes/immunology* ; Animals