To summarize Professor DING Ying's clinical experience in treating children's IgA nephropathy from the perspective of "wind-induced water turbidity". It is believed that the core pathogenesis of IgA nephropathy in children is the wind stimμlating water to become turbidity， and the basic treatment principles are to eliminate wind and settle viscera， and to remove turbidity and drain water. For those with the syndrome of wind-heat invading the lungs and injury to blood collaterals， modified Yinqiao Powder （银翘散） combined with Xiaoji Decoction （小蓟饮子） could be used； for those with dampness-heat in Sanjiao， heavy dampness and light heat pattern， modified Sanren Decoction （三仁汤） combined with Bazheng Powder （八正散） could be used； for those with lung-spleen qi deficiency and kidney essence depletion pattern， modified Buzhong Yiqi Decoction （补中益气汤） combined with Wuzi Yanzong Pill （五子衍宗丸） could be used； for those with deficiency of both qi and yin， kidney deficiency with stasis pattern， self-prescribed Yishen Huazhuo Formula （益肾化浊方） could be used. Meanwhile on the basis of pattern identification and treatment， rattan-type herbs could be combined in use in order to unblock the meridians and collaterals.

Various therapeuti modailities have been engineered for lung cancer treatment, but their clinic application is severely impeded by the poor therapy efficiency and immunosuppressive microenvironment. Herein, we fabricated a library of small molecule redox-labile nanoparticles (NPs) (i.e., diPTX-2C NPs, diPTX-2S NPs, and diPTX-2Se NPs) by the self-assembly of dimer paclitaxel (PTX) prodrug, and then utilized these NPs with the traditional Chinese medicine (TCM) Qi-Yu-San-Long-Fang (Q) for effective chemoimmunotherapy on Lewis lung carcinoma (LLC)-bearing mice models. Under the high concentration of glutathione (GSH) and H₂O₂, diPTX-2Se NPs could specifically release PTX in cancer cells and exert a higher selectivity and toxicity than normal cells. In LLC tumor-bearing mice, oral administration of Q not only effectively downregulated programmed death ligand-1 (PD-L1) expression, but also remodeled the immunosuppressive tumor immune microenvironment via the increase of CD4⁺ T and CD8⁺ T cell proportion and the repolarization of M2 into M1 macrophages in tumor tissues, collectively achieving superior synergistic treatment outcomes in combination with intravenous PTX prodrug NPs. Besides, we found that the combination regimen also demonstrated excellent chemoimmunotherapeutic performances on low-dose small established tumor and high-dose large established tumor models. This study may shed light on the potent utilization of Chinese and Western-integrative strategy for efficient tumor chemoimmunotherapy.

Background: Rhei Radix et Rhizoma has been traditionally used as a potent laxative for centuries due to its remarkable efficacy. Raw pieces of Rhei Radix et Rhizoma (RP) are known for their strong laxative effects, often accompanied by side effects, while steamed Rhei Radix et Rhizoma pieces (SP) possess a milder laxative effect and are widely used clinically. However, there is a lack of comprehensive evidence examining the mechanisms underlying SP's effectiveness, particularly from a bioavailability perspective. Objective: This study aimed to investigate the impact of the steaming process on the in vivo disposition of RP and SP through pharmacokinetics, tissue distribution, and excretion assays. Methods: An ultra-performance liquid chromatography-tandem mass spectrometry method was developed for the simultaneous quantitative analysis of prototype anthraquinones and their glucuronide metabolites. Pharmacokinetic, tissue distribution, and excretion assays were conducted in constipation rats following oral administration of RP and SP. Blood, tissue, urine, and fecal samples were collected and analyzed to compare the absorption, distribution, metabolism, and excretion profiles of anthraquinones, highlighting differences in bioavailability and safety between RP and SP. Results: Compared with the RP group, the SP group showed significantly reduced area under the plasma concentration-time curve, mean residence time, and half-life time values for rhein-8-O-β-D-glucopyranoside, rhein, emodin, aloe-emodin, and their glucuronide metabolites. The clearance values were significantly increased in the SP group. These results demonstrate that SP led to lower exposure levels and higher elimination rates of these components compared with RP. Additionally, these components were primarily distributed in the large intestine, where they exerted their laxative effects. Glucuronide metabolites were mainly excreted through urination, while prototype components were excreted in both urine and feces. Notably, the cumulative excretion of aloe-emodin, emodin, rhein, and their glucuronide metabolites was significantly higher in both urine and feces after SP administration, indicating that SP enhances the excretion of these components compared with RP. Conclusion: The findings suggest that SP reduced anthraquinone exposure levels while enhancing their excretion, demonstrating that the steaming process significantly promotes the elimination of key components. This study provides a comprehensive analysis of how steaming alters the in vivo disposition of Rhei Radix et Rhizoma, offering a scientific basis for the improved safety and clinical use of SP. These insights not only clarify the mechanistic differences between RP and SP but also contribute to a broader understanding of processing-induced modifications in Chinese medicines. This research paves the way for optimizing Chinese medicine processing techniques to enhance the safety and efficacy of herbal therapies.

Background:Rhei Radix et Rhizoma has been traditionally used as a potent laxative for centuries due to its remarkable efficacy.Raw pieces of Rhei Radix et Rhizoma(RP)are known for their strong laxative effects,often accompanied by side effects,while steamed Rhei Radix et Rhizoma pieces(SP)possess a milder laxative effect and are widely used clinically.However,there is a lack of comprehensive evidence examining the mechanisms underlying SP's effectiveness,particularly from a bioavailability perspective.Objective:This study aimed to investigate the impact of the steaming process on the in vivo disposition of RP and SP through pharmacokinetics,tissue distribution,and excretion assays.Methods:An ultra-performance liquid chromatography-tandem mass spectrometry method was developed for the simultaneous quantitative analysis of prototype anthraquinones and their glucuronide metabolites.Pharmacokinetic,tissue distribution,and excre-tion assays were conducted in constipation rats following oral administration of RP and SP.Blood,tissue,urine,and fecal samples were collected and analyzed to compare the absorption,distribution,metabolism,and excretion profiles of anthraquinones,high-lighting differences in bioavailability and safety between RP and SP.Results:Compared with the RP group,the SP group showed significantly reduced area under the plasma concentration-time curve,mean residence time,and half-life time values for rhein-8-O-β-D-glucopyranoside,rhein,emodin,aloe-emodin,and their glucuronide metabolites.The clearance values were significantly increased in the SP group.These results demonstrate that SP led to lower exposure levels and higher elimination rates of these components compared with RP.Additionally,these compo-nents were primarily distributed in the large intestine,where they exerted their laxative effects.Glucuronide metabolites were mainly excreted through urination,while prototype components were excreted in both urine and feces.Notably,the cumulative excretion of aloe-emodin,emodin,rhein,and their glucuronide metabolites was significantly higher in both urine and feces after SP administra-tion,indicating that SP enhances the excretion of these components compared with RP.Conclusion:The findings suggest that SP reduced anthraquinone exposure levels while enhancing their excretion,demonstrating that the steaming process significantly promotes the elimination of key components.This study provides a comprehensive analysis of how steaming alters the in vivo disposition of Rhei Radix et Rhizoma,offering a scientific basis for the improved safety and clinical use of SP.These insights not only clarify the mechanistic differences between RP and SP but also contribute to a broader understanding of processing-induced modifications in Chinese medicines.This research paves the way for optimizing Chinese medicine processing techniques to enhance the safety and efficacy of herbal therapies.

Objective To explore the feasibility of radiomics nomogram based on magnetic resonance diffusion weighted imaging for predicting the expression of Ki-67 in breast cancer.Methods A retrospective study was conducted on patients with breast cancer confirmed by surgery and pathology in the Second Affiliated Hospital of Guangdong Medical University.All patients were detected by Ki-67 expression staining,and then divided into group A(n=28,low-level expression of Ki-67)and group B(n=73,high-level expression of Ki-67).The apparent diffusion coefficient(ADC)graph was generated from diffusion weighted images,and the two groups were compared for radiomics features of ADC images and clinical data.The expression level of Ki-67 in breast cancer was predicted using the features of LASSO after dimensionality reduction,and a nomogram model was established,whose diagnostic efficiency was analyzed with receiver operating characteristic curve.Results No significant difference was observed in ADC value,age,carbohydrate antigen 199,carbohydrate antigen 153,carbohydrate antigen 125 and carcinoembryonic antigen between two groups(P>0.05).LASSO regression identified two radiomics features as predictors for the expression level of Ki-67 in breast cancer.The best tuning Lambda of LASSO was-0.125 690 135 478 682,and the included radiomics features for nomogram establishment were MinIntensity and Quantile95.The established nomogram had an area under ROC curve of 0.917,achieving a sensitivity of 91.7%and a specificity of 83.3%.Conclusion The expression of Ki-67 in breast cancer can be predicted based on the radiomics features of ADC images,which can provide a noninvasive detection method for evaluating the proliferation degree and treatment prognosis of breast cancer.

Objective:To investigate the differences in cross-frequency coupling (CFC) characteristics of electroencephalography (EEG) between narcolepsy type 1 (NT1) and narcolepsy type 2 (NT2).Methods:A total of 23 NT1 and 31 NT2 patients were included from the Chinese Clinical Sleep Database (CCSD) between October 2022 and September 2023. All participants underwent overnight polysomnography and a multiple sleep latency test. CFC features were extracted from EEG signals during polysomnography, encompassing various combinations of sleep stages, electrode pairs, frequency bands, and coupling types. Feature selection was performed using elastic net regularization. The Spearman correlation between key CFC features and the Epworth Sleepiness Scale (ESS) scores was analyzed. Finally, a support vector classification (SVC) model was constructed to distinguish NT1 from NT2, and leave-one-out cross-validation was used to assess the generalization performance.Results:Among all coupling features during non-rapid eye movement sleep stage 1 (N1), the fronto-occipital θ-α1 and central δ-α1 couplings showed the highest absolute coefficients, reaching 1.13 and 1.10, respectively. In the NT1 group, the α1-β2 imaginary part of phase-locking value (iPLV) of the F3-C3 pair during N1 was significantly positively correlated with ESS scores ( r=0.52, P=0.012). In the machine learning classification task, the SVC model achieved an accuracy of 85% using leave-one-out cross-validation. Conclusion:The CFC features during the sleep-wake transition stage play an important role in distinguishing NT1 from NT2 and show a significant correlation with excessive daytime sleepiness (EDS) in NT1. CFC may serve as a potential biomarker for differentiating narcolepsy subtypes and provide new insights into the mechanisms and clinical evaluation of EDS.

Objective To explore the feasibility of radiomics nomogram based on magnetic resonance diffusion weighted imaging for predicting the expression of Ki-67 in breast cancer.Methods A retrospective study was conducted on patients with breast cancer confirmed by surgery and pathology in the Second Affiliated Hospital of Guangdong Medical University.All patients were detected by Ki-67 expression staining,and then divided into group A(n=28,low-level expression of Ki-67)and group B(n=73,high-level expression of Ki-67).The apparent diffusion coefficient(ADC)graph was generated from diffusion weighted images,and the two groups were compared for radiomics features of ADC images and clinical data.The expression level of Ki-67 in breast cancer was predicted using the features of LASSO after dimensionality reduction,and a nomogram model was established,whose diagnostic efficiency was analyzed with receiver operating characteristic curve.Results No significant difference was observed in ADC value,age,carbohydrate antigen 199,carbohydrate antigen 153,carbohydrate antigen 125 and carcinoembryonic antigen between two groups(P>0.05).LASSO regression identified two radiomics features as predictors for the expression level of Ki-67 in breast cancer.The best tuning Lambda of LASSO was-0.125 690 135 478 682,and the included radiomics features for nomogram establishment were MinIntensity and Quantile95.The established nomogram had an area under ROC curve of 0.917,achieving a sensitivity of 91.7%and a specificity of 83.3%.Conclusion The expression of Ki-67 in breast cancer can be predicted based on the radiomics features of ADC images,which can provide a noninvasive detection method for evaluating the proliferation degree and treatment prognosis of breast cancer.

Background:Rhei Radix et Rhizoma has been traditionally used as a potent laxative for centuries due to its remarkable efficacy.Raw pieces of Rhei Radix et Rhizoma(RP)are known for their strong laxative effects,often accompanied by side effects,while steamed Rhei Radix et Rhizoma pieces(SP)possess a milder laxative effect and are widely used clinically.However,there is a lack of comprehensive evidence examining the mechanisms underlying SP's effectiveness,particularly from a bioavailability perspective.Objective:This study aimed to investigate the impact of the steaming process on the in vivo disposition of RP and SP through pharmacokinetics,tissue distribution,and excretion assays.Methods:An ultra-performance liquid chromatography-tandem mass spectrometry method was developed for the simultaneous quantitative analysis of prototype anthraquinones and their glucuronide metabolites.Pharmacokinetic,tissue distribution,and excre-tion assays were conducted in constipation rats following oral administration of RP and SP.Blood,tissue,urine,and fecal samples were collected and analyzed to compare the absorption,distribution,metabolism,and excretion profiles of anthraquinones,high-lighting differences in bioavailability and safety between RP and SP.Results:Compared with the RP group,the SP group showed significantly reduced area under the plasma concentration-time curve,mean residence time,and half-life time values for rhein-8-O-β-D-glucopyranoside,rhein,emodin,aloe-emodin,and their glucuronide metabolites.The clearance values were significantly increased in the SP group.These results demonstrate that SP led to lower exposure levels and higher elimination rates of these components compared with RP.Additionally,these compo-nents were primarily distributed in the large intestine,where they exerted their laxative effects.Glucuronide metabolites were mainly excreted through urination,while prototype components were excreted in both urine and feces.Notably,the cumulative excretion of aloe-emodin,emodin,rhein,and their glucuronide metabolites was significantly higher in both urine and feces after SP administra-tion,indicating that SP enhances the excretion of these components compared with RP.Conclusion:The findings suggest that SP reduced anthraquinone exposure levels while enhancing their excretion,demonstrating that the steaming process significantly promotes the elimination of key components.This study provides a comprehensive analysis of how steaming alters the in vivo disposition of Rhei Radix et Rhizoma,offering a scientific basis for the improved safety and clinical use of SP.These insights not only clarify the mechanistic differences between RP and SP but also contribute to a broader understanding of processing-induced modifications in Chinese medicines.This research paves the way for optimizing Chinese medicine processing techniques to enhance the safety and efficacy of herbal therapies.

Objective:To investigate the differences in cross-frequency coupling (CFC) characteristics of electroencephalography (EEG) between narcolepsy type 1 (NT1) and narcolepsy type 2 (NT2).Methods:A total of 23 NT1 and 31 NT2 patients were included from the Chinese Clinical Sleep Database (CCSD) between October 2022 and September 2023. All participants underwent overnight polysomnography and a multiple sleep latency test. CFC features were extracted from EEG signals during polysomnography, encompassing various combinations of sleep stages, electrode pairs, frequency bands, and coupling types. Feature selection was performed using elastic net regularization. The Spearman correlation between key CFC features and the Epworth Sleepiness Scale (ESS) scores was analyzed. Finally, a support vector classification (SVC) model was constructed to distinguish NT1 from NT2, and leave-one-out cross-validation was used to assess the generalization performance.Results:Among all coupling features during non-rapid eye movement sleep stage 1 (N1), the fronto-occipital θ-α1 and central δ-α1 couplings showed the highest absolute coefficients, reaching 1.13 and 1.10, respectively. In the NT1 group, the α1-β2 imaginary part of phase-locking value (iPLV) of the F3-C3 pair during N1 was significantly positively correlated with ESS scores ( r=0.52, P=0.012). In the machine learning classification task, the SVC model achieved an accuracy of 85% using leave-one-out cross-validation. Conclusion:The CFC features during the sleep-wake transition stage play an important role in distinguishing NT1 from NT2 and show a significant correlation with excessive daytime sleepiness (EDS) in NT1. CFC may serve as a potential biomarker for differentiating narcolepsy subtypes and provide new insights into the mechanisms and clinical evaluation of EDS.

【Objective】 To analyze the genetic background of RhD-negative blood donors by detecting RHD and RHCE genes of those donors. 【Methods】 From March 2021 to May 2022, the blood samples of RhD-negative blood donors, who had been screened out by RhD primary screening and confirmatory experiments in the Yaan Blood Center, were firstly identified whether the RHD allele was completely deleted, then whether there were deletions in 10 exons of non-RHD allele complete deletion samples, finally, the remaining samples without RHD alleles and exon deletions were further analyzed by DNA sequencing. RHCE gene was detected by SSP-PCR method. 【Results】 Among the RHD gene test results of 104 RhD-negative samples, 65 cases were completely deleted (d/d), 33 were RHD partially deleted (one allele deletion), and 6 were without RHD gene deletion. The RHD alleles of 33 samples with partial deletion were detected by 10 exons, 13 had partial exon deletion, with genotype as RHD^*D-CE(3-9)-D/d and phenotype as RhD negativity, and the remaining 20 samples had no exon deletion. The exon sequencing results of the non-deletion samples showed RHD^*1227A/RHD^*1227A in 6 samples, RHD^*1227A/d in 19, RHD^*3A/d in 1; both of the last two were considered D^el by ISBT. The RHCE gene test results showed that all cc genotype blood donors were RhD true negative, while D^el blood donors had no cc genotype. 【Conclusion】 Through the genetic background study of RhD negative blood donors, it is found that there is a high proportion of D^el with weak expression of RhD antigen, whether this blood type affects clinical blood safety needs further researches.