Drug resistance is one of the key factors affecting the effectiveness of cancer treatment methods, including chemotherapy, radiotherapy, and immunotherapy. Its occurrence is related to factors such as mRNA expression and methylation within cancer cells. If drug resistance in patients can be accurately identified early, doctors can devise more effective treatment plans, which is of great significance for improving patients' survival rates and quality of life. Cancer drug resistance prediction based on artificial intelligence (AI) technology has emerged as a current research hotspot, demonstrating promising application prospects in guiding clinical individualized and precise medication for cancer patients. This review aims to comprehensively summarize the research progress in utilizing AI algorithms to analyze multi-omics data including genomics, transcriptomics, epigenomics, proteomics, metabolomics, radiomics, and histopathology, for predicting cancer drug resistance. It provides a detailed exposition of the processes involved in data processing and model construction, examines the current challenges faced in this field and future development directions, with the aim of better advancing the progress of precision medicine.

OBJECTIVE: This study aims to elucidate the therapeutic potential of osthole for the treatment of atopic dermatitis (AD), focusing on its ability to alleviate chronic pruritus (CP) and the underlying molecular mechanisms. METHODS: In this study, we investigated the anti-inflammatory effects of osthole in both a 2,4-dichloronitrobenzene (DNCB)-induced AD mouse model and tumor necrosis factor-α (TNF-α) and interferon-γ (IFN-γ) stimulated huma immortalized epidermal (HaCaT) cells. The anti-itch effect of osthole was specifically assessed in the AD mouse model. Using methods such as hematoxylin and eosin (HE) staining, enzyme-linked immunosorbent assay (ELISA), western blot (WB), quantitative real-time PCR (qRT-PCR), and immunofluorescence staining. RESULTS: Osthole improved skin damage and clinical dermatitis scores, reduced scratching bouts, and decreased epidermal thickness AD-like mice. It also reduced the levels of interleukin (IL)-31 and IL-31 receptor A (IL-31 RA) in both skin tissues and HaCaT cells. Furthermore, Osthole suppressed the protein expression levels of phosphor-p65 (p-p65) and phosphor-inhibitor of nuclear factor kappa-Bα (p-IκBα). Meanwhile, it increased the protein expression levels of peroxisome proliferator-activated receptor α (PPARα) and PPARγ in HaCaT cells. CONCLUSION These findings indicated that osthole effectively inhibited CP in AD by activating PPARα, PPARγ, repressing the NF-κB signaling pathway, as well as the expression of IL-31 and IL-31 RA.

Aim To study the permeability of salidro-side(Sal)to the blood brain barrier(BBB)by high-performance liquid chromatography electrospray ioniza-tion tandem mass spectrometry(UPLC-ESI-MS-MS),and to explore the target and mechanism of Sal in the treatment of ischemic stroke(IS)by network pharma-cology,molecular docking technique and animal exper-iment.Methods UPLC-ESI-MS/MS was used to study the BBB penetration of Sal.Multiple databases were used to predict the target of Sal and the disease target of IS,GO and KEGG enrichment analysis were performed and verified by molecular docking technique and animal experiments.Results After Sal adminis-tration to normal rats and MCAO rats,Sal prototype and the metabolite tyrosol were detected in plasma and brain tissue of rats.A total of 191 targets were identi-fied by network pharmacology,the enrichment analysis of GO mainly involved in the biological processes of proteolysis and positive regulation of cell migration,and the analysis of KEGG pathway suggested that PI3K-Akt,MAPK,FOXO and other signaling path-ways played a key role in the treatment of IS by Sal The results of molecular docking showed that Sal had good binding ability with the core target of docking,and the results of animal experiments showed that Sal could significantly improve the neurologic impairment of MCAO rats,the number of Nissl-positive cells in is-chemic side significantly increased,and the expression of VEGF,EGFR and IGF1 increased,while the ex-pression of IL-6 and MMP9 was inhibited.Conclu-sions Sal is able to penetrate the BBB and enter the central nervous system for its pharmacological effects.Network pharmacology predicts the core targets of Sal in the treatment of IS,including VEGFA,EGFR,IL-6,MMP9,IGF1,CASP3,ALB,SRC.The effects of Sal on some core targets can be verified by animal ex-periments,to provide a reference for further study of the mechanism of Sal in the treatment of IS.

Aim To study the neuroprotective effects of Herba siegesbeckiae extract on cerebral ischemia/ reperfusion rats and its mechanism. Methods Sixty SD rats were randomly divided into model group, low, middle and high dose groups of Herba siegesbeckiae, and Sham operation group, and the drug was given continuously for seven days. The degree of neurologic impairment was evaluated by mNSS, and the infarct volume was measured by MRI. The number of Nissl-posi- tive cells was detected by Nissl staining, and the apop- tosis was accessed by Tunel staining. Furthermore, the expression of Bax, Bcl-2 and NeuN was observed by Western blot, and the expression of NeuN was detected by immunofluorescence staining. The expression of IL- 1β, TNF-α and IL-6 mRNA was performed by RT- qPCR. Results The mNSS score and the volume of ischemic cerebral infarction in the model group were significantly increased, and Herba siegesbeckiae extract treatment significantly decreased the mNSS score and infarct volume (P<0.05, P<0.01). Herba siegesbeckiae extract could increase the number of Nissl-pos- itive cells and the expression of NeuN (P<0.01), and reduce the number of Tunel-positive cells (P<0.01). Western blot showed that Herba siegesbeckiae extract inhibited the expression of Bax, increased Bcl-2 and NeuN in ischemic brain tissue (P<0.01). RT-qPCR showed that Herba siegesbeckiae extract inhibited the expression of IL-1 β, TNF-α and IL-6 mRNA in the is-chemic brain tissue (P<0.01). Conclusions Herba siegesbeckiae extract can reduce the cerebral infarction volume, improve the neurological function damage, inhibit the apoptosis of nerve cells and the expression of inflammatory factors and promote the expression of NeuN, there by exerting protective effects on MCAO rats.

Objective To explore the feasibility and effectiveness of the artificial intelligence(AI)diagnostic model for bone age imaging in the radiology information system-picture archiving and communication system(RIS-PACS)environment operation.Methods The optimized bone age AI model was integrated into the RIS-PACS platform.The bone age imaging data of 88 038 patients aged 0-18 years old were automatically evaluated.The reference bone age was determined by the consensus of two experienced radi-ologists based on GP map,with an error of±1.0 year old.The success rate,accuracy,system compatibility,stability,and influen-cing factors of results were further analyzed.Results The time for bone age AI evaluation of each case did not exceed 3 seconds,and the success rate of automatic evaluation reached 100%.AI model of bone age and RIS-PACS in hospital could be well integrated.Accord-ing to the readings evaluated by pediatric radiologists based on GP maps,the accuracy rate was 93.05%for girls and 89.53%for boys,with a mean absolute error(MAE)of(0.42±0.54)years old for girls and(0.45±0.60)years old for boys,respectively.The AI model could run efficiency in the RIS-PACS,which significantly reduced the burden of radiologists.The factors that affect the accuracy of the model were image position,exposures,multiple images in a single sequence and hand deformity,etc.Conclusion The bone age imaging AI diagnostic model can be seamlessly embedded into RIS-PACS in hospital,achieving one click bone age imaging diagnosis.

Medical education in China has undergone many changes amid the revolution of medical education worldwide. The Healthy China initiative in the new era highlights the increasing demand for a high-quality children's health service system as well as more excellent pediatricians. This article aims to delve into the current opportunities and challenges of pediatric education in China, summarize the response strategies, and take a look at the new mode of talent cultivation in pediatric medicine. With the rapid shift in the newborn population, the strengthening of multidisciplinary collaboration, the development of medical informatization, and the continuous improvement in scientific research levels, pediatric medical education is facing unprecedented opportunities. However, the late start of pediatrics and the lack of high-level talents have also brought great challenges to pediatric medical education. Therefore, future efforts should be focused on multi-disciplinary cooperation and innovative education and teaching to nurture pediatrician-scientists with innovative abilities and practical experience.

Humans ; Huntington Disease/diagnostic imaging* ; Brain/diagnostic imaging* ; Brain Mapping ; Magnetic Resonance Imaging

Aim To study the effect of salidroside (SAL) on cerebral vascular endothelial cells of rats with ischemic brain injury and its mechanism of action. Methods Twenty-four healthy adult SD male rats were prepared by bolt plugging method to prepare MCAO models,and randomly divided into sham surgery group ( Sham ) , model group ( MCAO ) , and SAL administration group (MCAO + SAL) ,and the concentration of SAL was 50 mg • kg ~ , with a continuous administration for six days. Western blot was used to detect the protein expression of ICAM-1, VCAM-1 , E-se-lectin,and P-selectin in injured brain tissue of rats. In vitro cell experiments using HUVECs were subjected to different concentrations of salidroside (0. 1,1,10 jjunol • L ) and LPS (100 ^g • L ) intervened for 24 hours,and CCK-8 was employed to detect the effects of SAL and LPS on the survival of HUVECs. In vitro an-giogenesis experiments, LPS group ( 100 (jLg • L~ ) and SAL administration group ( LPS + Sal) intervened in HUVECs for 24 hours,and the concentrations of SAL administration were 0. 1,1, and 10 jjunol • L , then the effects of LPS and SAL on their angiogenesis were observed. The protein expressions of ICAM-1, VCAM-1 ,E-selectin,and P-selectin in HUVECs were detected by Western blot. Results SAL could reduce the expression of ICAM-1, VCAM-1, E-selectin, and P-selectin in ischemic brain tissue of MCAO rats. In vitro experimental studies found that salidroside had no effect on the survival of HUVECs. LPS inhibited the angiogenesis of HUVECs, and after the action of SAL, SAL (1,10 jjimol • L ) reversed the effect of LPS and promoted its angiogenesis. Compared with the control group,the expressions of ICAM-1, VCAM-1, E-selectin and P-selectin of HUVECs after LPS stimulation increased, while the expressions of ICAM-1, VCAM-1 , E-selectin and P-selectin were significantly reduced after the addition of SAL, which promoted the angiogenesis ability of HUVECs. Conclusions SAL can improve the ability of cell regeneration in rats with ischemic brain injury and promote the ability of blood vessel formation.

Aim To develop a ultra-high performance liquid chromatography electrospray-ionization tandem mass spectrometry ( UPLC-MS/MS ) method for the simultaneous determination of salidroside derivative pOBz in rat plasma and brain tissue, and to study the pharmacokinetic profile and penetration of the blood-brain barrier in rats after a single dose intravenous administration of pOBz. Methods SD rats were administered pOBz at a dose of 50 mg • kg

Aim To investigate the neuroprotective effect of prophylactic administration of salidroside (Sal) on MCAO rats. Methods A total of 52 SD adult male rats were randomly divided into sham operation group (Sham), model group (MCAO) and salidroside pre-administration group (MCAO + Sal). The dose of Sal was 50 mg·kg