Objective To analyze the correlation between the poor position of pedicle screw after lumbar internal fixation and the occurrence of postoperative neurological symptoms.Methods The clinical data of patients who underwent lumbar pedicle screw surgery in our hospital from January 2017 to December 2023 were analyzed retrospectively.Record the patient's sex,age,diagnosis,surgical segment,the presence of postoperative neurological complications,the types of neurological complications.According to the postoperative CT,the screw penetration zone and grade were evaluated,and the distribution of different pedicle screw penetration types was recorded.The correlation between different types of pedicle screw penetration and postoperative neurological symptoms was analyzed.Results A total of 184 patients were included,including 80 males and 104 females.Age ranged from 18 to 82 years,with an average of 60.1±14.2 years.35 patients developed new neurological symptoms after operation.The incidence of postoperative neurological symptoms caused by pedicle medial quadrant screw penetration and lower quadrant screw penetration was higher than that of pedicle superior quadrant and lateral quadrant screw penetration.From L1 to L5,the risk of postoperative neurological symptoms caused by screw penetration in the medial quadrant of the pedicle increases gradually.When the penetration distance of pedicle medial quadrant screws in L4 and L5 segments is≥2mm,the risk of postoperative neurological symptoms is high.When the penetration distance of pedicle medial quadrant screws in L1,L2 and L3 segments is greater than 4mm,the risk of postoperative neurological symptoms is high.The distance of pedicle screw penetrating the medial quadrant of pedicle was positively correlated with the incidence of postoperative neurological symptoms(P<0.05).Conclusion The lateral and superior quadrants of the pedicle may be regarded as safety zones for lumbar pedicle screw placement.For the L1～L3 segments,screw penetration depth should not exceed 4 mm;whereas for the L4～L5 segments,the safety threshold must be strictly controlled within 2 mm.

Objective To analyze the correlation between the poor position of pedicle screw after lumbar internal fixation and the occurrence of postoperative neurological symptoms.Methods The clinical data of patients who underwent lumbar pedicle screw surgery in our hospital from January 2017 to December 2023 were analyzed retrospectively.Record the patient's sex,age,diagnosis,surgical segment,the presence of postoperative neurological complications,the types of neurological complications.According to the postoperative CT,the screw penetration zone and grade were evaluated,and the distribution of different pedicle screw penetration types was recorded.The correlation between different types of pedicle screw penetration and postoperative neurological symptoms was analyzed.Results A total of 184 patients were included,including 80 males and 104 females.Age ranged from 18 to 82 years,with an average of 60.1±14.2 years.35 patients developed new neurological symptoms after operation.The incidence of postoperative neurological symptoms caused by pedicle medial quadrant screw penetration and lower quadrant screw penetration was higher than that of pedicle superior quadrant and lateral quadrant screw penetration.From L1 to L5,the risk of postoperative neurological symptoms caused by screw penetration in the medial quadrant of the pedicle increases gradually.When the penetration distance of pedicle medial quadrant screws in L4 and L5 segments is≥2mm,the risk of postoperative neurological symptoms is high.When the penetration distance of pedicle medial quadrant screws in L1,L2 and L3 segments is greater than 4mm,the risk of postoperative neurological symptoms is high.The distance of pedicle screw penetrating the medial quadrant of pedicle was positively correlated with the incidence of postoperative neurological symptoms(P<0.05).Conclusion The lateral and superior quadrants of the pedicle may be regarded as safety zones for lumbar pedicle screw placement.For the L1～L3 segments,screw penetration depth should not exceed 4 mm;whereas for the L4～L5 segments,the safety threshold must be strictly controlled within 2 mm.

Purpose: Radiation-induced dermatitis (RD) is a common side-effect of therapeutic ionizing radiation that can severely affect patient quality of life. This study aimed to develop a risk prediction model for the occurrence of RD in patients with cervical carcinoma undergoing chemoradiotherapy using electronic medical records (EMRs). Methods: Using EMRs, the clinical data of patients who underwent simultaneous radiotherapy and chemotherapy at a tertiary cancer hospital between 2017 and 2022 were retrospectively collected, and the patients were divided into two groups: a training group and a validation group. A predictive model was constructed to predict the development of RD in patients who underwent concurrent radiotherapy and chemotherapy for cervical cancer. Finally, the model's efficacy was validated using a receiver operating characteristic curve. Results: The incidence of radiation dermatitis was 89.5% (560/626) in the entire cohort, 88.6% (388/438) in the training group, and 91.5% (172/188) in the experimental group. The nomogram was established based on the following factors: age, the days between the beginning and conclusion of radiotherapy, the serum albumin after chemoradiotherapy, the use of single or multiple drugs for concurrent chemotherapy, and the total dose of afterloading radiotherapy. Internal and external verification indicated that the model had good discriminatory ability. Overall, the model achieved an area under the receiver operating characteristic curve of .66. Conclusions The risk of RD in patients with cervical carcinoma undergoing chemoradiotherapy is high. A risk prediction model can be developed for RD in cervical carcinoma patients undergoing chemoradiotherapy, based on over 5 years of EMR data from a tertiary cancer hospital.

Objective:To evaluate the efficacy and safety of high-dose injectable dexlansoprazole in the treatment of acute upper gastrointestinal ulcer hemorrhage.Methods:This study was a randomized, double-blind, positive drug parallel controlled, multicenter clinical trial led by the First Affiliated Hospital of Naval Medical University (Shanghai Changhai Hospital), with participation from 43 hospitals such as Yichun People′s Hospital, Army Medical Center of PLA (Chongqing Daping Hospital), etc. From August 31, 2019 to May 25, 2020, 346 patients with upper gastrointestinal hemorrhage caused by acute gastric and (or) duodenal ulcer were selected. The subjects were randomly divided into experimental group and control group according to a 2 to 1 stratification scheme using the SAS 9.4 software. The medication regimen for the experimental group was intravenous injection of dexlansoprazole 30 mg/times, once every 12 h, while the medication regimen for the control group was intravenous injection of lansoprazole and dexlansoprazole mimetics, 30 mg/times, once every 12 h; the treatment course was 5 days. The primary efficacy indicator (72 h effective hemostasis rate), the secondary efficacy indicator(clinical hemostasis rate at 24, 48, and 120 h, and the proportion of subjects who underwent endoscopic treatment or surgical procedures again due to hemorrhage within 5 days), and the incidence of adverse reactions were compared between the 2 groups. Binomial distribution normal approximation method was performed to calculate the 95% confidence interval (95% CI) of the difference in hemostasis rate between the experimental group and the control group. Fisher′s exact test was used for statistical analysis. Results:A total of 329 patients (219 cases in the experimental group and 110 cases in the control group) were enrolled. The 72 h effective hemostasis rate (95% CI) of the experimental and control group was 95.9%(210/219, 92.3% to 98.1%) and 93.6%(103/110, 87.3% to 97.4%), respectively, and the difference was not statistically significant ( P>0.05). The difference in the 72-hour effective hemostasis rate(95% CI) between the experimental and the control group was 2.3% (-3.0% to 7.5%). The clinical hemostasis rates at 24, 48, and 120 h of the treatment were 82.2% (176/214), 99.1%(210/212), and 100.0%(210/210) in the experimental group, and 85.2%(92/108), 98.1%(104/106), and 100.0%(105/105) in the control group, respectively, and the differences were not statistically significant (all P>0.05). The proportion of subjects who underwent endoscopic treatment and surgical procedure again within 5 days (95% CI)of the experimental group and control group was 0 (0 to 1.7%) and 1.9% (0.2% to 6.5%), respectively, and the difference was not statistically significant ( P>0.05). The result of safety evaluation showed that the overall incidence of adverse reactions of the experimental group and the control group was 6.4% (14/219) and 11.8% (13/110), respectively, and the difference was not statistically significant ( P>0.05). Conclusion:High dose injectable dexlansoloprazole is an effective and safe treatment for upper gastrointestinal ulcer hemorrhage, and suitable for clinical application.

Objective:To evaluate the efficacy and safety of high-dose injectable dexlansoprazole in the treatment of acute upper gastrointestinal ulcer hemorrhage.Methods:This study was a randomized, double-blind, positive drug parallel controlled, multicenter clinical trial led by the First Affiliated Hospital of Naval Medical University (Shanghai Changhai Hospital), with participation from 43 hospitals such as Yichun People′s Hospital, Army Medical Center of PLA (Chongqing Daping Hospital), etc. From August 31, 2019 to May 25, 2020, 346 patients with upper gastrointestinal hemorrhage caused by acute gastric and (or) duodenal ulcer were selected. The subjects were randomly divided into experimental group and control group according to a 2 to 1 stratification scheme using the SAS 9.4 software. The medication regimen for the experimental group was intravenous injection of dexlansoprazole 30 mg/times, once every 12 h, while the medication regimen for the control group was intravenous injection of lansoprazole and dexlansoprazole mimetics, 30 mg/times, once every 12 h; the treatment course was 5 days. The primary efficacy indicator (72 h effective hemostasis rate), the secondary efficacy indicator(clinical hemostasis rate at 24, 48, and 120 h, and the proportion of subjects who underwent endoscopic treatment or surgical procedures again due to hemorrhage within 5 days), and the incidence of adverse reactions were compared between the 2 groups. Binomial distribution normal approximation method was performed to calculate the 95% confidence interval (95% CI) of the difference in hemostasis rate between the experimental group and the control group. Fisher′s exact test was used for statistical analysis. Results:A total of 329 patients (219 cases in the experimental group and 110 cases in the control group) were enrolled. The 72 h effective hemostasis rate (95% CI) of the experimental and control group was 95.9%(210/219, 92.3% to 98.1%) and 93.6%(103/110, 87.3% to 97.4%), respectively, and the difference was not statistically significant ( P>0.05). The difference in the 72-hour effective hemostasis rate(95% CI) between the experimental and the control group was 2.3% (-3.0% to 7.5%). The clinical hemostasis rates at 24, 48, and 120 h of the treatment were 82.2% (176/214), 99.1%(210/212), and 100.0%(210/210) in the experimental group, and 85.2%(92/108), 98.1%(104/106), and 100.0%(105/105) in the control group, respectively, and the differences were not statistically significant (all P>0.05). The proportion of subjects who underwent endoscopic treatment and surgical procedure again within 5 days (95% CI)of the experimental group and control group was 0 (0 to 1.7%) and 1.9% (0.2% to 6.5%), respectively, and the difference was not statistically significant ( P>0.05). The result of safety evaluation showed that the overall incidence of adverse reactions of the experimental group and the control group was 6.4% (14/219) and 11.8% (13/110), respectively, and the difference was not statistically significant ( P>0.05). Conclusion:High dose injectable dexlansoloprazole is an effective and safe treatment for upper gastrointestinal ulcer hemorrhage, and suitable for clinical application.

Increasing evidences suggest the important role of calcium homeostasis in hallmarks of cancer, but its function and regulatory network in metastasis remain unclear. A comprehensive investigation of key regulators in cancer metastasis is urgently needed. Transcriptome sequencing (RNA-seq) of primary esophageal squamous cell carcinoma (ESCC) and matched metastatic tissues and a series of gain/loss-of-function experiments identified potassium channel tetramerization domain containing 4 (KCTD4) as a driver of cancer metastasis. KCTD4 expression was found upregulated in metastatic ESCC. High KCTD4 expression is associated with poor prognosis in patients with ESCC and contributes to cancer metastasis in vitro and in vivo. Mechanistically, KCTD4 binds to CLIC1 and disrupts its dimerization, thus increasing intracellular Ca²⁺ level to enhance NFATc1-dependent fibronectin transcription. KCTD4-induced fibronectin secretion activates fibroblasts in a paracrine manner, which in turn promotes cancer cell invasion via MMP24 signaling as positive feedback. Furthermore, a lead compound K279-0738 significantly suppresses cancer metastasis by targeting the KCTD4‒CLIC1 interaction, providing a potential therapeutic strategy. Taken together, our study not only uncovers KCTD4 as a regulator of calcium homeostasis, but also reveals KCTD4/CLIC1-Ca²⁺-NFATc1-fibronectin signaling as a novel mechanism of cancer metastasis. These findings validate KCTD4 as a potential prognostic biomarker and therapeutic target for ESCC.

OBJECTIVE To study the sp ectrum-effect relationship of anti-gastric ulcer effect of Shaoyao gancao decoction. METHODS Eleven batches of Shaoyao gancao decoction were prepared ；gastric ulcer model was established by anhydrous ethanol modeling method. Using Weikangling as positive control ，the effects of Shaoyao gancao decoction on the contents of defensive factors [nitric oxide （NO），epidermal growth factor （EGF），superoxide dismutase （SOD）] and attack factor [malondialdehyde （MDA）] in gastric tissue of model rats were investigated. HPLC fingerprints of 11 batches of Shaoyao gancao decoction were established and similarity evaluation was performed with Similarity Evaluation System of Traditional Chinese Medicine Chromatographic Fingerprint （2004A edition ）； common peaks were identified by comparing with mixed control. The spectrum-effect relationship of Shaoyao gancao decoction against gastric ulcer was analyzed based on the grey correlation analysis. RESULTS Eleven batches of Shaoyao ganyao decoction could significantly decrease the content of MDA in gastric tissue ，while increased the contents of NO ，EGF and SOD in gastric ulcer model rats （P＜0.01），and had a certain inhibitory effect on the gastric ulcer. There were 23 common peaks in chromatograms of 11 batches of samples ，and the similarity with the control fingerprint was not less than 0.9. By comparing with mixed control ，7 common peaks were identified ，namely gallic acid （peak 5），albiflorin（peak 9），paeoniflorin（peak 10），liquiritin（peak 12），isoliquiritin apioside （peak 14），isoliquiritoside（peak 15）， glycyrrhizic acid （peak 22）. The average correlation degree of 7 identified common peaks and pharmacodynamic indexes were greater than 0.6，of which peak 22（glycyrrhizic acid ），peak 10（paeoniflorin）and peak 12（liquiritin）had the largest correlation ， and their values were 0.807，0.772 and 0.770 respectively. RESULTS The anti-gastric ulcer effect of Shaoyao gancao decoction is the result of the synergistic effect of multiple components ，among which glycyrrhizic acid ，paeoniflorin and liquiritin may be the main pharmacodynamic components.

The coronavirus disease 2019 (COVID-19) pandemic is caused by infection with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which is spread primary via respiratory droplets and infects the lungs. Currently widely used cell lines and animals are unable to accurately mimic human physiological conditions because of the abnormal status of cell lines (transformed or cancer cells) and species differences between animals and humans. Organoids are stem cell-derived self-organized three-dimensional culture in vitro and model the physiological conditions of natural organs. Here we showed that SARS-CoV-2 infected and extensively replicated in human embryonic stem cells (hESCs)-derived lung organoids, including airway and alveolar organoids which covered the complete infection and spread route for SARS-CoV-2 within lungs. The infected cells were ciliated, club, and alveolar type 2 (AT2) cells, which were sequentially located from the proximal to the distal airway and terminal alveoli, respectively. Additionally, RNA-seq revealed early cell response to virus infection including an unexpected downregulation of the metabolic processes, especially lipid metabolism, in addition to the well-known upregulation of immune response. Further, Remdesivir and a human neutralizing antibody potently inhibited SARS-CoV-2 replication in lung organoids. Therefore, human lung organoids can serve as a pathophysiological model to investigate the underlying mechanism of SARS-CoV-2 infection and to discover and test therapeutic drugs for COVID-19.
Adenosine Monophosphate/therapeutic use* ; Alanine/therapeutic use* ; Alveolar Epithelial Cells/virology* ; Antibodies, Neutralizing/therapeutic use* ; COVID-19/virology* ; Down-Regulation ; Drug Discovery ; Human Embryonic Stem Cells/metabolism* ; Humans ; Immunity ; Lipid Metabolism ; Lung/virology* ; RNA, Viral/metabolism* ; SARS-CoV-2/physiology* ; Virus Replication/drug effects*

Objective To improve the efficiency of blood collection in hemodialysis patients by inventing and applying new blood collection needles.Methods One hundred and eighty cases of hemodialysis patients were randomly divided into control group 1(CG1),control group 2(CG2),experimental group(EG). Comparison of the three groups in time of blood collection,the number of operation that had the risk of acupuncture injury and the number of the blood samples that had been contaminated. Results There were statistically significant difference (P<0.05)in three groups.The number of times of blood collection in the number of operations that had the risk of acupuncture injury,and the number of the blood sample that had been contaminated. CG1 had the longest blood collection time(12.55 min),EG had the shortest blood collection time(5.09 min);the risk of acupuncture injury was the highest in CG2 and the lowest in the EG.The number of contamination of blood samples and the amount of inaccurate sample in CG1 were the highest,and the lowest in the EG. Conclusions The working efficiency of transfer type anti-acupuncture needle(TTAN)during blood sample collection in hemodialysis patients is signifi-cantly better than that of traditional blood collection method,and it is helpful to reduce the risk of acupuncture injury and the risk of contamination in blood samples,which is worthy of promotion.

A UPLC-MS/MS method based on metabonomic skills was developed to study the serum metabolic changes of rats after acute liver injury induced by CCl4 and to evaluate the action mechanism of Si-Ni-San. The integrated data were exported for principal components analysis (PCA) by using SIMCA-P software, in order to find the potential biomarkers. It showed that clear separation of healthy control group, model group, silymarin group, Si-Ni-San group was achieved by using the PCA method. Nine significantly changed metabolites were identified as potential biomarkers of acute liver injury. Compared with the health control group, the model group rats showed higher levels of phenylalanine, tryptophan and GCDCA together with lower levels of LPC 16 : 0, LPC 18 : 0, LPC 18 : 1, LPC 16 : 1, LPC 20 : 4 and LPC 22 : 6. These changes of serum metabolites suggested that the disorders of amino acid metabolism, lipid metabolism, bile acid biosynthesis and anti-oxidative damage were related to acute liver injury induced by CCl4. Si-Ni-San might have the anti-liver injury effect on all these four metabolic pathways.