Objective:To explore the risk factors for osteoporosis in postmenopausal patients with rheumatoid arthritis and establish a prediction model for early identification.Methods:A retrospective analysis was conducted on the clinical data of 128 postmenopausal patients with rheumatoid arthritis who visited Northwest Women′s and Children′s Hospital from May 2021 to December 2023. According to their bone mineral density, the patients were divided into the osteoporosis group (T-score ≤-2.5, n=16) and the non-osteoporosis group (T-score >-2.5, n=112). Clinical data of the two groups were compared. Pearson correlation analysis was used to analyze the correlation of various indicators. Multivariate logistic regression analysis was applied to screen the influencing factors for osteoporosis in postmenopausal patients with rheumatoid arthritis, and a Nomogram model for predicting the risk of osteoporosis in such patients was established. The receiver operating characteristic (ROC) curve was drawn to evaluate the predictive efficacy of the model. Results:The age, Disease Activity Score 28 based on Erythrocyte Sedimentation Rate (DAS28-ESR), β-cross-linked C-telopeptide of type I collagen (β-CTX), luteinizing hormone (LH), and follicle-stimulating hormone (FSH) in the osteoporosis group were higher than those in the non-osteoporosis group, while the bone mineral density of lumbar vertebrae t1-4, left hip, right hip, serum calcium, and estradiol (E 2) levels were lower (all P<0.05). Pearson correlation analysis showed that DAS28-ESR was negatively correlated with bone mineral density of lumbar vertebrae t1-4 ( r=-3.026, P=0.002), left hip ( r=-3.409, P<0.001), and right hip ( r=-4.125, P<0.001). Multivariate logistic regression analysis showed that age ( OR=4.697, 95% CI: 2.509-8.795), DAS28-ESR ( OR=4.889, 95% CI: 2.611-9.154), β-CTX ( OR=4.816, 95% CI: 2.572-9.018), LH ( OR=4.998, 95% CI: 2.669-9.357), and FSH ( OR=4.802, 95% CI: 2.565-8.991) were risk factors for osteoporosis in postmenopausal women with rheumatoid arthritis (all P<0.05); bone mineral density of lumbar vertebrae t1-4 ( OR=0.203, 95% CI: 0.108-0.381), left hip ( OR=0.214, 95% CI: 0.114-0.401), right hip ( OR=0.211, 95% CI: 0.113-0.396), serum calcium ( OR=0.199, 95% CI: 0.106-0.372), and E 2 ( OR=0.210, 95% CI: 0.112-0.383) were protective factors (all P<0.05). The Nomogram model for predicting osteoporosis in postmenopausal patients with rheumatoid arthritis had a sensitivity of 0.86(95% CI: 0.73-0.92), a specificity of 0.83(95% CI: 0.72-0.95), and an area under the curve of 0.918(95% CI: 0.865-0.973). Conclusions:Age, DAS28-ESR, β-CTX, LH, FSH, bone mineral density of lumbar vertebrae t1-4, left hip, right hip, serum calcium, and E 2 are related to osteoporosis in postmenopausal patients with rheumatoid arthritis. The established prediction model is helpful for early identification of the risk of osteoporosis.

Objective:To explore the risk factors for osteoporosis in postmenopausal patients with rheumatoid arthritis and establish a prediction model for early identification.Methods:A retrospective analysis was conducted on the clinical data of 128 postmenopausal patients with rheumatoid arthritis who visited Northwest Women′s and Children′s Hospital from May 2021 to December 2023. According to their bone mineral density, the patients were divided into the osteoporosis group (T-score ≤-2.5, n=16) and the non-osteoporosis group (T-score >-2.5, n=112). Clinical data of the two groups were compared. Pearson correlation analysis was used to analyze the correlation of various indicators. Multivariate logistic regression analysis was applied to screen the influencing factors for osteoporosis in postmenopausal patients with rheumatoid arthritis, and a Nomogram model for predicting the risk of osteoporosis in such patients was established. The receiver operating characteristic (ROC) curve was drawn to evaluate the predictive efficacy of the model. Results:The age, Disease Activity Score 28 based on Erythrocyte Sedimentation Rate (DAS28-ESR), β-cross-linked C-telopeptide of type I collagen (β-CTX), luteinizing hormone (LH), and follicle-stimulating hormone (FSH) in the osteoporosis group were higher than those in the non-osteoporosis group, while the bone mineral density of lumbar vertebrae t1-4, left hip, right hip, serum calcium, and estradiol (E 2) levels were lower (all P<0.05). Pearson correlation analysis showed that DAS28-ESR was negatively correlated with bone mineral density of lumbar vertebrae t1-4 ( r=-3.026, P=0.002), left hip ( r=-3.409, P<0.001), and right hip ( r=-4.125, P<0.001). Multivariate logistic regression analysis showed that age ( OR=4.697, 95% CI: 2.509-8.795), DAS28-ESR ( OR=4.889, 95% CI: 2.611-9.154), β-CTX ( OR=4.816, 95% CI: 2.572-9.018), LH ( OR=4.998, 95% CI: 2.669-9.357), and FSH ( OR=4.802, 95% CI: 2.565-8.991) were risk factors for osteoporosis in postmenopausal women with rheumatoid arthritis (all P<0.05); bone mineral density of lumbar vertebrae t1-4 ( OR=0.203, 95% CI: 0.108-0.381), left hip ( OR=0.214, 95% CI: 0.114-0.401), right hip ( OR=0.211, 95% CI: 0.113-0.396), serum calcium ( OR=0.199, 95% CI: 0.106-0.372), and E 2 ( OR=0.210, 95% CI: 0.112-0.383) were protective factors (all P<0.05). The Nomogram model for predicting osteoporosis in postmenopausal patients with rheumatoid arthritis had a sensitivity of 0.86(95% CI: 0.73-0.92), a specificity of 0.83(95% CI: 0.72-0.95), and an area under the curve of 0.918(95% CI: 0.865-0.973). Conclusions:Age, DAS28-ESR, β-CTX, LH, FSH, bone mineral density of lumbar vertebrae t1-4, left hip, right hip, serum calcium, and E 2 are related to osteoporosis in postmenopausal patients with rheumatoid arthritis. The established prediction model is helpful for early identification of the risk of osteoporosis.

Objective:To explore the application value of real-time shear wave elastography(SWE)and ultrafast pulse wave velocity(UFPWV)techniques in assessing carotid artery stiffness of patients with gouty arthritis(GA).Methods:A total of 80 GA patients admitted to the First People's Hospital of Yibin from August 2022 to July 2023 were selected as GA group.Among of them,24 cases combined with bone erosion who were confirmed by imaging examination,and 56 cases did not combine with bone erosion.In addition,a total of 40 healthy individuals,who underwent physical examinations in our hospital during the same period,were selected as the healthy control group.SWE and UFPWV were used to detect the maximum,minimum and mean values of Young's modulus values of the vessel wall of common carotid artery,and the pulse wave velocity at the beginning of systole(PWVBS)and pulse wave velocity at the end of systole(PWVES)of the vessel wall of common carotid artery of all subjects,and to assess the hardness of circumferential and longitudinal vessel wall of common carotid artery of them.The differences in Young's modulus values,PWVBS and PWVES between two groups were compared.And then,the correlations between bone erosion and Young's modulus values,PWVBS,PWVES of GA patients were further analyzed.Results:The maximum,minimum,mean values,PWVBS and PWVES in the GA group were respectively(78.80±12.38)kPa,(57.83±7.42)kPa,(67.67±8.38)kPa,(7.06±0.59)m/s and(9.50±0.63)m/s,which were significantly higher than those in the healthy control group(t=11.066,8.216,11.751,14.159,19.118,P＜0.05).The maximum,minimum,mean values,PWVBS and PWVES of GA patients with bone erosion were respectively(82.95±6.37)kPa,(59.59±5.29)kPa,(72.18±7.62)kPa,(7.37±0.43)m/s,(10.43±0.47)m/s,which were significantly higher than those[(77.01±5.32)kPa,(57.08±4.73)kPa,(65.73±4.54)kPa,(6.92±0.39)m/s and(9.10±0.41)m/s]of GA patients without bone erosion,the differences were significant(t=4.309,2.099,4.699,4.586,12.720,P＜0.05).Spearman correlation analysis showed that there was significant correlations between maximum,minimum,mean values,PWVBS,PWVES and the combined bone erosion in GA patients(r=0.602,0.421,0.682,0.647,0.732,P＜0.05).Conclusion:SWE and UFPEV techniques can evaluate the hardness of vascular wall of GA patients,and the hardness of circumferential and longitudinal vessel wall of common carotid artery of GA patient is higher than that of healthy person,and the hardness of circumferential and longitudinal vessel wall of common carotid artery of GA patient with bone erosion is higher.

BACKGROUND: Sarcopenia is an age-related progressive skeletal muscle disorder involving the loss of muscle mass or strength and physiological function. Efficient and precise AI algorithms may play a significant role in the diagnosis of sarcopenia. In this study, we aimed to develop a machine learning model for sarcopenia diagnosis using clinical characteristics and laboratory indicators of aging cohorts. METHODS: We developed models of sarcopenia using the baseline data from the West China Health and Aging Trend (WCHAT) study. For external validation, we used the Xiamen Aging Trend (XMAT) cohort. We compared the support vector machine (SVM), random forest (RF), eXtreme Gradient Boosting (XGB), and Wide and Deep (W&D) models. The area under the receiver operating curve (AUC) and accuracy (ACC) were used to evaluate the diagnostic efficiency of the models. RESULTS: The WCHAT cohort, which included a total of 4057 participants for the training and testing datasets, and the XMAT cohort, which consisted of 553 participants for the external validation dataset, were enrolled in this study. Among the four models, W&D had the best performance (AUC = 0.916 ± 0.006, ACC = 0.882 ± 0.006), followed by SVM (AUC =0.907 ± 0.004, ACC = 0.877 ± 0.006), XGB (AUC = 0.877 ± 0.005, ACC = 0.868 ± 0.005), and RF (AUC = 0.843 ± 0.031, ACC = 0.836 ± 0.024) in the training dataset. Meanwhile, in the testing dataset, the diagnostic efficiency of the models from large to small was W&D (AUC = 0.881, ACC = 0.862), XGB (AUC = 0.858, ACC = 0.861), RF (AUC = 0.843, ACC = 0.836), and SVM (AUC = 0.829, ACC = 0.857). In the external validation dataset, the performance of W&D (AUC = 0.970, ACC = 0.911) was the best among the four models, followed by RF (AUC = 0.830, ACC = 0.769), SVM (AUC = 0.766, ACC = 0.738), and XGB (AUC = 0.722, ACC = 0.749). CONCLUSIONS: The W&D model not only had excellent diagnostic performance for sarcopenia but also showed good economic efficiency and timeliness. It could be widely used in primary health care institutions or developing areas with an aging population. TRIAL REGISTRATION Chictr.org, ChiCTR 1800018895.
Humans ; Aged ; Sarcopenia/diagnosis* ; Deep Learning ; Aging ; Algorithms ; Biomarkers

Objective To study the effects of three ferroptosis inducers Erastin (Era), sulfasalazine (SASP) and artesunate (Art) alone or combined with gemcitabine hydrochloride (hcGEM) on the proliferation inhibition of Human pancreatic cell line PANC -1. Methods The CCK-8 method was used to detect the inhibitory effects of different concentrations of Era, SASP and Art alone or combined with hcGEM on the proliferation of PANC-1, and the combination index (CI) was used to judge whether three ferroptosis inducers combined with hcGEM had synergistic inhibitory effect on PANC-1. Results The three ferroptosis inducers and hcGEM alone or in combination could significantly inhibit the activity of PANC-1. The inhibitory effects were enhanced with the concentration increasing. The CI values of hcGEM-Era 4∶1 or 1∶4 combination group and hcGEM-SASP 1∶400 combination group were less than 1.The CI values of hcGEM-Art 1∶4 or 1∶16 combination group were less than 1 only within a certain concentration range. Conclusion The inhibitory effects of the three ferroptosis inducers and hcGEM alone or in combination were dose-dependent. The combination of hcGEM and three ferroptosis inducers could synergistically inhibit the proliferation of PANC-1.

The antimicrobial peptide Epinecidin-1 is a kind of small molecule active peptides extracted from Epinephelus coioides，which serves as the first line of defense for innate immune defense system of Epinephelus coioides against various pathogens. In vitro and in vivo studies have confirmed that the antimicrobial peptide Epinecidin-1 not only exhibits broad-spectrum anti-pathogen activities (including bacteria, fungi, viruses, and parasites, etc.), but also has pharmacological activities such as immune regulation, anti-cancer and wound healing. In this paper, the relevant research on the antimicrobial peptide Epinecidin-1 in recent years were summarized, including its mechanism of action, pharmacological activities, potential limitations and application prospects , so as to provide information for further research.

Objective To observe the clinical efficacy and safety of GINA regimen and GINA regimen combined with oral Huaiqihuang granule in the treatment of children with bronchial asthma.Methods A ran-domized,single blind,multicenter,parallel controlled clinical trial wascarried out.A total of 1 128 patients with bronchial asthma in children were randomized into two groups.The observation group were treated with GINA regimen combined with oral Huaiqihuang granule.The GINA regimen treatment group was treated by GINA reg-imen.Clinical assessment and C-ACT scores was observed in first month,third month,sixth month after treat-ment.Clinical assessment included the times of upper respiratory tract infection occurrence,bronchitis and pneu-monia,asthmatic attacks,application of emergency medicine,hospitalizations due to asthmatic.Drug adverse effect in the two groups was compared.Results The times of upper respiratory tract infection,bronchitis and pneumonia,asthmatic was significantly decreased(P <0.05 ),and C-ACTscores were significantly higher(P <0.05)in the first month,the third month,and the sixth month after treatment.There were 16 cases of drug relat-ed adverse reactions.Seven cases were in observation group(n ﹦7)(1.15%)and 9 cases in the GINA regimen treatment group(n ﹦9)(1.73%).There was no significant difference of adverse effect between the two groups (P >0.05).Conclusion The treatment of bronchial asthma in children with GINA regimen combined with oral Huaiqihuang granule can significantly reduce the incidence of respiratory infections and the number of asthmatic attacks dramatically and safely improve clinical curative effect,asthma control.

This study aims to assess the expression of Klotho and insulin-like growth factor-1 (IGF-1) and the association between Klotho and IGF-1 in rats with dementia model. Thirty rats were randomly divided into three groups. Morris water maze was used to investigate the learning and memory functions, and enzyme linked immunosorbent assay was used to analyze the levels of Klotho and IGF-1. Klotho and IGF-1 levels in the model group were lower than those in other 2 groups. Morris water maze test showed that the model group had longer escape latency times and shorter step platform times compared to other groups. Line correlation model demonstrated that Klotho level was positively correlated with IGF-1 level in rats with dementia (P= 0. 029). The levels of Klotho and IGF-1 both reduced at hippocampus in rats with dementia model, suggesting that it may be a close relationship between Klotho and IGF-1 in the pathogenesis of dementia.
Animals ; Dementia ; metabolism ; Female ; Glucuronidase ; genetics ; metabolism ; Hippocampus ; metabolism ; Insulin-Like Growth Factor I ; genetics ; metabolism ; Male ; Maze Learning ; Memory ; physiology ; Rats ; Rats, Wistar

Objective To study the mechanism of high intensity ultrasound (HIU) on COX-2 mRNA expression and apoptosis in breast cancer cell line MDA-MB-231 cells.Methods Human breast cancer cells MDA-MB-231 in vitro were exposed in HIU (50 w/cm2).RT-PCR was performed to detect the level of COX-2 mRNA before and after exposure.The ultrastructural changes in apoptotic cells were examined by transmission electron microscopy.Results The relative level of COX-2 mRNA decreased gradually along with the increase of exposure time and apoptotic bodies in MDA-MB-231 cells considerably increased under electron microscope.When exposure time was increased to 30 seconds,a few cells died.Conclusion HIU promotes apoptosis of breast cancer MDA-MB-231 cells in a COX-2 mRNA depended way.

Objective: To confirm the pathogenesis and diagnosis of pediatric Fisher's syndr ome.Methods: Clinical manifestations and Cerebrospinal fluid (CSF) were compared and studied in 22 patients diagnosed as Fisher's syndrome.Results:Twenty- two cases of Fisher's syndrome both had the characteristics of ophthalmoplegia and cerebella ataxia,and had different degrees of incomplete fl accid paralysis in the ar ms and legs. In about half of 22 cases, the CSF showed divergence phenomenon of the protein and cell. Conclusion: Fisher's syndrome is a specific or variant type of AIP involving the cranial nerves, in which the cerebellar ataxia is taken as a main symptom and sign .