AIM: To provide references for the non-clinical evaluation of therapeutic targets or drugs for retinoblastoma, fluorescently labeled Y79 cells are injected into the vitreous body of BALB/c-nu mice to establish a retinoblastoma model, and the Melphalan treatment group is used as a positive control, which is verified by fluorescence imaging technology.METHODS: BALB/c-nu mice were intravitreous injected with GFP transfected Y79 cells(1.0×107 cell/mL, 3 μL)to establish the model. On the 27th day, the mice were randomly divided into model control group and different doses of Melphalan groups(1, 3, 10 μg/eye groups)according to the fluorescence value of in vivo imaging, with vitreous body single administrated and ocular symptoms observed daily. Slit-lamp examination was performed at 12, 20, 29, 35, 42, 48, 55, 76, and 83 d after modeling. In vivo imaging was performed on 12, 20, 27, 41, 48, 55, 62, 69, 76, and 83 d. At the last treatment, the eyeball, brain and cerebellum tissues were removed for histopathological examination.RESULTS: From the sixth day of modeling, cloud-like substances could be seen in the eyes of the animals, and the cloud-like substances occupied the whole eyeball of the mice in the model control group at the later stage, accompanied by irregular growth of blood vessels. After 27 days of modeling, the fluorescence value was detected in all the animals, and the fluorescence value continued to increase with the extension of modeling time. The fluorescence value of the tumor reached the peak after 69-83 days of modeling. Histological examination showed severe proliferation of intraocular tumor cells in the model control group, and tumor cells were observed in the brain of 1 model animal. In the 10 μg/eye Melphalan group, the fluorescence value was significantly decreased at 17 d after administration. The fluorescence value of the 3 μg/eye Melphalan group was significantly inhibited at 59 d after administration. No tumor cells were found in the brain tissue of animals in all Melphalan groups.CONCLUSION: After vitreous injection of Y79/pCDH-LUC-copGFP cells in BALB/c-nu mice, significant ocular lesions and proliferation of tumor cells were observed in the eyes. Meanwhile, Melphalan intervention significantly inhibited tumor cells in a dose-dependent manner, indicating that the mouse model of retinoblastoma was successfully constructed.

Ultrasound-guided local ablation therapy for liver tumors has extensive clinical application because of its minimal invasiveness, proven effectiveness, low complication rates, and suitability for repeat treatments. Ultrasound-guided interventional therapy has continuously evolved in terms of the following: technological advancements, from the initial utilization of percutaneous ethanol injection to thermal ablation therapies exemplified by radiofrequency ablation and microwave ablation and presently advancing toward emerging techniques such as irreversible electroporation; imaging methods, from conventional ultrasound guidance to contrast-enhanced ultrasound and fusion imaging for precise guidance and assessment; supplementary strategies, from monotherapy to auxiliary method and synergistic therapy; and innovative treatment concepts, from early-stage small hepatocellular carcinoma to intermediate and even large liver cancers. The development of ultrasound-guided local ablation of liver cancers has progressed from an initial phase of rapid advancement to a mature stage characterized by further enhancements. This article provides a comprehensive overview of the status of technical equipment, treatment processes, efficacy, complications, and challenges encountered in ultrasound-guided local ablation for liver tumors, with the objective of offering valuable insights for interventional ultrasound physicians.

ObjectiveTo observe the effectiveness and safety of Jiuzihuichun decoction combined with spleen- strengthening moxibustion in patients with asthenospermia infertility with spleen-kidney deficiency pattern. MethodsA total of 82 patients with asthenospermia of spleen-kidney deficiency pattern in Shanghai Seventh People's Hospital were included. The patients were randomly divided into an observation group and a control group， with 41 patients in each group. The control group received oral administration of WuziYanzong pills combined with spleen-strengthening moxibustion. The dosage of Wuzi Yanzong pills was 1 bag each time， and it was taken twice a day. The spleen-strengthening moxibustion was carried out once a week. The observation group， on the other hand， took Jiuzi Huichun decoction orally combined with spleen-strengthening moxibustion. The Jiuzi Huichun Decoction was taken 200 mL each time， twice a day， with one dose in the morning and one in the evening. The spleen-strengthening moxibustion for the observation group was also performed once a week. The treatment course for both groups was 12 weeks， and they were followed up for an additional 12 weeks. During the treatment process，12 cases were either lost to follow-up or excluded. Eventually， 70 cases were available for evaluation，with 35 cases in the control group and 35 cases in the observation group. The pregnancy status of the patients' spouse within 6 months was recorded. The traditional Chinese medicine （TCM） syndrome scores of spleen-kidney deficiency pattern before and after treatment were evaluated. The semen volume，semen routine parameters，normal sperm morphology，sperm DNA fragmentation index，seminal plasma fructose，seminal plasma acid phosphatase， and seminal plasma α-glucosidase levels of the two groups were detected before and after treatment. In addition， the safety indicators related to liver and kidney functions of the two groups were detected before and after treatment. ResultsDuring the 6-month observation period， when compared with the situation before treatment in their respective groups，the semen volume of the observation group and the control group increased. In contrast， the sperm concentration，sperm motility，proportion of a+b-grade sperm，normal sperm morphology，seminal plasma fructose，seminal plasma acid phosphatase，seminal plasma α-Glucosidase，the proportion of a-grade sperm，linear sperm motility，linear sperm concentration， and linear sperm count all increased significantly（P<0.05）. At the same time， the sperm DNA fragmentation index and the TCM syndrome scores of the spleen-kidney deficiency pattern decreased significantly（P<0.05）. When the observation group was compared with the control group after treatment， the clinical efficacy of the observation group was better（Z=-2.276，P<0.05）. The pregnancy rate of the observation group's spouses was 14.3%，which was higher than the 2.9% of the control group. The sperm motility， the proportion of a+b-grade sperm，seminal plasma fructose，the proportion of a-grade sperm，normal sperm morphology，α-glucosidase， and linear sperm motility in the observation group were higher than those in the control group （P<0.05）. Moreover， the sperm DNA fragmentation index and the TCM syndrome scores of spleen-kidney deficiency pattern in the observation group were lower than those in the control group （P<0.01）. No serious adverse reactions occurred in the two groups，and no abnormalities were found in the safety indicators after treatment. ConclusionJiuzi Huichun decoction combined with spleen-strengthening moxibustion can enhance sperm viability and sperm concentration. It can also improve the TCM-related symptoms of asthenospermia of spleen-kidney deficiency pattern and sperm morphology. Additionally， it can reduce the sperm DNA fragmentation index and regulate the level of seminal plasma bioenzyme in patients with male asthenospermia infertility of spleen-kidney deficiency pattern. Therefore， it is worthy of further promotion and application in clinical practice.

It is believed that Shengyang Yiwei Decoction （升阳益胃汤， SYD） is effective in regulating the flow of Qi （气）， and can treat various diseases caused by the disorder of the spleen and stomach Qi. In clinical practice， based on the pathological characteristics of children often having insufficient spleen， and adhering to the principle of treating different diseases with the same method， the focus is placed on the core pathogenesis of spleen and stomach Qi disharmony. We use SYD in various pediatric conditions such as allergic rhinitis， post COVID-19 condition， urethral syndrome， and dysfunctional uterine bleeding in adolescence， and emphasize the treatment is flexibly tailored to the symptoms.

ObjectiveTo investigate the mechanism by which Feixin decoction treats hypoxic pulmonary hypertension （HPH） by regulating the peroxisome proliferator-activated receptor gamma （PPARγ）/nuclear factor-kappa B （NF-κB）/NOD-like receptor pyrin domain containing 3 （NLRP3） signaling pathway. MethodsForty-eight male SD rats were randomly allocated into normal， hypoxia， and low-， medium- and high-dose （5.85， 11.7， 23.4 g·kg^-1， respectively） Feixin decoction groups， with 8 rats in each group. Except the normal group， the remaining five groups were placed in a hypoxia chamber with an oxygen concentration of （10.0±0.5）% for 8 h per day， 28 days， and administrated with corresponding drugs during the modeling process. After 4 weeks of treatment， echocardiographic parameters ［pulmonary artery acceleration time （PAT）， pulmonary artery ejection time （PET）， right ventricular anterior wall thickness （RVAWd）， and tricuspid annular plane systolic excursion （TAPSE）］ were measured for each group. The right ventricular systolic pressure （RVSP） was measured by the right heart catheterization method， and the right ventricular hypertrophy index （RVHI） was calculated by weighing the heart. The pathological changes in pulmonary arterioles were observed by hematoxylin-eosin staining. The co-localization of α-smooth muscle actin （α-SMA） with NLRP3， N-terminal gasdermin D （N-GSDMD）， and cysteinyl aspartate-specific proteinase-1 （Caspase-1） in pulmonary arteries was detected by immunofluorescence. The protein levels of PPARγ， NF-κB， NLRP3， apoptosis-associated speck-like protein containing a CARD （ASC）， N-GSDMD， interleukin-1β （IL-1β）， interleukin-18（IL-18）， and cleaved Caspase-1 in the lung tissue was determined by Western blot. The ultrastructural changes in pulmonary artery smooth muscle cells （PASMCs） were observed by transmission electron microscopy. ResultsCompared with the normal group， the hypoxia group showed increased RVSP and RVHI （P<0.01）， decreased right heart function （P<0.01）， increased pulmonary vascular remodeling （P<0.01）， increased co-localization of α-SMA with NLRP3， N-GSDMD， and Caspase-1 in pulmonary arterioles （P<0.01）， up-regulated protein levels of NF-κB， NLRP3， ASC， N-GSDMD， IL-1β， IL-18， and cleaved Caspase-1 in the lung tissue （P<0.05， P<0.01）， a down-regulated protein level of PPARγ （P<0.05， P<0.01）， and pyroptosis in PASMCs. Compared with the hypoxia group， Feixin decoction reduced RVSP and RVHI， improved the right heart function and ameliorated pulmonary vascular remodeling （P<0.05， P<0.01）， decreased the co-localization of α-SMA with NLRP3， N-GSDMD， and Caspase-1 （P<0.05， P<0.01）， down-regulated the protein levels of NF-κB， NLRP3， ASC， N-GSDMD， IL-1β， IL-18， and cleaved Caspase-1 in the lung tissue （P<0.05， P<0.01）， up-regulated the protein level of PPARγ （P<0.05， P<0.01）， and alleviated pyroptosis in PASMCs. ConclusionFeixin decoction can ameliorate pulmonary vascular remodeling and right heart dysfunction in chronically induced HPH rats by regulating pyroptosis in PASMCs through the PPARγ/NF-κB/NLRP3 pathway.

Objective:To establish a prediction method of diopter based on sequence of ocular biological parameters.Methods:A stratified random cluster sampling method was used to extract the dataset. The dataset consisted of data collected from January 2022 to January 2023 by the Eye & ENT Hospital, Fudan University, from children aged 5 to 13 years in 2 key schools and 2 general schools of Yangpu District, Shanghai. Children’s ocular biological parameters, including sex, age, diopter, axial length, corneal curvature, and anterior chamber depth were collected. The slope of the optimally fitted straight line was calculated using the least squares method. The least square-back propagation (BP) neural network model was established by combining baseline data and the pre-processed rate of the change of ocular biological parameters. The dataset was divided into the training set and the validation set according to the ratio of 8:2 for five-fold cross-validation. The model performance was evaluated by using the mean absolute error (MAE), mean squared error (MSE), root mean square error (RMSE), correlation coefficient R, and coefficient of determination R2. Results:The optimal performances of R2, R, RMSE, MAE, and MSE of the least square-BP neural network model were 0.96, 0.981 9, 0.214 2, 0.139 9 D, 0.045 9, respectively. The regression equation between the predicted value and the true value of the diopter was y=0.97 x+ 0.014 8, R2=0.97, with good correlation. In the internal verification, MAE values of the diopter at three, six, nine, and twelve months of follow-up were 0.110 1, 0.136 0, 0.153 7, and 0.184 8 D, respectively, which achieved clinically acceptable performance (less than 0.25 D). In the external validation, the errors were less than 0.25 D at all ages. Conclusions:A prediction method of diopter based on sequence of ocular biological parameters was successfully developed.

OBJECTIVE To study the pharmacodynamics and pharmacokinetics of semaglutide(Sem)capsules in type 2 diabetic model rats.METHODS Male SD rats were divided into the normal control group,type 2 diabetic model group and model+Sem capsules(0.839,1.678 and 2.517 mg·kg-1)groups.A type 2 diabetic rat model was induced by high sugar and high fat diet feeding combined with ip given streptozotocin(STZ)injection.Seven days after modeling,the model+Sem capsules group was ig given Sem capsules at the corresponding dose in a fasting state,once a day,for 14 d.Body mass,fasting blood glucose(FBG),and glycosylated hemoglobin(HbA1c)levels were regularly mea-sured in each group of rats.Plasma from rats in the model+Sem capsules 0.839,1.678 and 2.517 mg·kg-1 groups at different time points was collected at the end of the continuous administration of Sem capsules,and the content of Sem in the plasma of rats was determined by liquid chromatography-tandem mass spectrometry.Concentration-time curves were plotted,and the main pharmacokinetic parameters were fitted by the WinNonlin non-atrial model method.RESULTS Compared with the model group,the body mass of rats in model+Sem capsules dosing groups decreased significantly after 7 and 14 d of Sem capsules intervention(P<0.05,P<0.01),so did FBG(P<0.01)and the HbA1c level(P<0.01).Meanwhile,FBG and HbA1c levels of rats in model+Sem capsules 1.678 and 2.517 mg·kg-1 groups were not significantly different from those of the normal control group after 14 d of Sem capsules intervention,suggesting that FBG and HbA1c levels were basically restored to normal.Phar-macokinetic results showed that the elimination half-life(t1/2)of Sem in plasma after ig administration of Sem capsules 0.839,1.678,and 2.517 mg·kg-1 for 14 d in rats was 7.40±1.34,7.48±0.33 and(8.23±0.90)h,respectively,the peak concentration(Cmax)was 18±9,81±23 and(256±53)μg·L-1,time to peak(Tmax)was 0.06±0.13,1.56±0.88,(1.50±1.00)h,respectively,the area under the curve(AUC0-t)was 158±76 μg·h·L-1,858±310 and(3795±1539)μg·h·L-1,and the accumulation index was 1.12±0.05,1.12±0.01 and 1.15±0.04,respectively.CONCLUSION Sem capsules ig administrated can effectively reduce body mass,FBG and HbA1c levels in type 2 diabetic model rats,and lead to glucose reduction and by mass loss.After 14 d of continuous administration of Sem capsules,there is no accu-mulation of semaglutide in rats in the dose range of 0.839-2.517 mg·kg-1,and the exposure increases with the dose.

Objective:To investigate effect of vitexin on macrophage polarization and its impact on tumor growth in a mouse model of prostate cancer.Methods:C57BL/6J male mice were used to establish RM-1 prostate cancer xenograft model.Mice were ran-domly divided into model group,vitexin-low,medium and high doses groups(40,80,160 mg/kg),and cisplatin group as positive control.After continuous administration for 16 days,mice were euthanized and tumor mass was measured.HE staining was performed to observe tumor morphology.Immunohistochemistry was used to detect Ki67 positive rate.Flow cytometry was conducted to measure expressions of CD86+CD11b and CD206+CD11b in tumor-associated macrophages.CCK8 assay was performed to assess cytotoxic effect of vitexin on RAW264.7 macrophages to determine suitable concentrations.RT-qPCR was used to measure mRNA expressions of M2 macrophage markers,including arginase-1(ARG-1),Fizz1 and Ym1.Results:Vitexin inhibited tumor volume and weight,induced tumor tissue necrosis,suppressed Ki67 protein expression,increased expression of CD86+CD11b+M1 macrophages,and inhibited CD206+CD11b+M2 macrophage expression in mouse tumor tissues in vivo.Vitexin at concentrations of 10～20 μmol/L showed no cyto-toxicity on RAW264.7 macrophages in vitro,and promoted expression of iNOS in IL-4-induced M2 macrophages while inhibiting CD206 expression,as well as suppressed mRNA expressions of ARG-1,Fizz1 and Ym1.Conclusion:Vitexin effectively inhibits tumor growth in a mouse model of prostate cancer,possibly by regulating M2 macrophages towards an M1 phenotype and exerting immunomodulatory effects.

Objective:To assess the feasibility of wavelet index (WLI) in monitoring the depth of sedation with propofol in pediatric patients.Methods:This was a prospective observational trial. One hundred and sixty-five pediatric patients, aged >1-12 yr, of American Society of Anesthesiologists Physical Status classification Ⅰ or Ⅱ, undergoing elective surgery requiring general anesthesia with endotracheal intubation or laryngeal mask airway from July to December 2016 in our hospital, were divided into 11 age groups ( n=15 each): >1-2 yr group, >2-3 yr group, >3-4 yr group, >4-5 yr group, >5-6 yr group, >6-7 yr group, >7-8 yr group, >8-9 yr group, >9-10 yr group, >10-11 yr group, and >11-12 yr group. General anesthesia was induced by injection of propofol 3 mg/kg for more than 30 s. WLI and BIS values were recorded immediately before administration and at 30, 40, 50, 60, 90, 120, 180 and 240 s after the end of administration. If there were differences among age groups, age groups with no statistically significant differences were combined and re-grouped. Pearson linear correlation analysis and Bland-Altman consistency analysis were performed. Results:A total of 149 pediatric patients were actually included. There were no significant differences in BIS values between 4 groups aged > 1-5 yr and between 7 groups aged > 5-12 yr ( P>0.05). Regrouping was performed based on the aforementioned results, 4 groups of children aged > 1-5 yr were divided into > 1-5 yr group ( n=60), and 7 groups of children aged > 5-12 yr were divided into > 5-12 yr group ( n=89). WLI values and BIS values were significantly decreased at each time point after administration compared with immediately before administration in group aged > 1-5 yr and in group aged >5-12 yr ( P<0.05). The BIS values were the lowest at 60 s after the end of the administration, and the WLI values were the lowest at 120 and 180 s after the end of the administration in two groups ( P<0.05). There were no statistically significant differences between WLI values and BIS values at 90 s and 240 s after the end of the administration ( P>0.05), and there was statistically significant difference at the other time points in group aged > 1-5 yr ( P<0.05). There was no significant difference between WLI values and BIS values at 180 s and 240 s after the end of the administration ( P>0.05), but there were significant differences at the other time points in group aged > 5-12 yr ( P<0.05). The Pearson correlation coefficients between WLI values and BIS values were 0.61 and 0.56 in group aged > 1-5 yr and group aged > 5-12 yr, respectively ( P<0.001). Bland-Altman agreement analysis: In group aged > 1-5 yr and group aged > 5-12 yr, the 95% agreement limits were -0.484-0.621 and -0.551-1.015, respectively, and there were 4.6% (23/504) and 5.1% (40/777) of the points outside the 95% agreement limits, respectively, and both limits exceeded the clinically acceptable range. Conclusions:WLI is feasible for monitoring the depth of sedation with propofol in pediatric patients aged > 1-12 yr, but the accuracy is lower than BIS.

Postsurgical hypoparathyroidism is a common cause of hypoparathyroidism, with a variety of clinical manifestations. It is life-threatening in acute and severe cases, and may lead to poor quality of life in chronic patients. It is imperative to consistently enhance the identification and governance of such circumstance. Focusing on the pathophysiological changes, clinical and biochemical features, acute and chronic treatments of postsurgical hypoparathyroidism, a consensus was developed by domestic experts from surgery, endocrinology and nephrology.