BACKGROUND:Due to the mechanical properties,unstable drug release,single function and other problems of pure hydrogel materials,in recent years,researchers have prepared a variety of metal organic frameworks-based hydrogel materials by introducing metal organic frameworks into hydrogel,and showed great potential in the field of soft and hard tissue regeneration. OBJECTIVE:To classify the metal organic frameworks-based hydrogel materials based on how metal organic frameworks enhance the properties of hydrogel and further summarize its recent research in the field of soft and hard tissue regeneration,in order to provide ideas and theoretical supports for the subsequent in-depth research on synthesis mechanism and clinical application of the composite material. METHODS:Using"metal organic frameworks,hydrogels,tissue engineering,tissue,bone regeneration,bone,wound"as English and Chinese search terms,we searched Web of Science,PubMed,CNKI,and Wanfang databases.The search period ranged from January 2000 to August 2023.By reading the titles and abstracts,the repetitive studies and unrelated literature of Chinese and English literature were excluded.After the literature quality evaluation,73 articles were included for review. RESULTS AND CONCLUSION:(1)Metal organic frameworks-based hydrogel materials effectively solve the problems of poor mechanical properties,unstable drug release and single function of pure hydrogel.(2)Metal organic frameworks enhance the capacity of repair and regeneration by strengthening the cross-linking of hydrogel,the drug delivery capacity of hydrogel and the multifunction of hydrogel.(3)In terms of hard tissue repair,it has shown good repair effects in animal models of diseases such as bone defects,osteoarthritis,and cartilage defects,suggesting potential application prospects in clinical repair.(4)In terms of soft tissue regeneration,it has the capacities of hemostasis,antibacterial,inflammatory state regulation,oxidative stress state regulation,promoting angiogenesis and other functions,effectively improving the microenvironment of various complex wounds and promoting soft tissue regeneration.(5)Although metal organic frameworks-based hydrogels have many excellent properties,they are still in the initial stage and there are some urgent problems to be solved in the process of clinical transformation,such as the cytotoxicity of metal organic frameworks and large-scale synthesis of metal organic frameworks.(6)With further research,metal organic frameworks-based hydrogels have broad application prospects in the field of soft and hard tissue repair.

ABSTRACT OBJECTIVE To explore the correlation between HPLC fingerprint and analgesic efficacy of Zhejiang vinegar Corydalis Rhizoma, and to screen out the material basis of analgesic effect of Zhejiang vinegar Corydalis Rhizoma.METHODS Established HPLC fingerprint of Zhejiang vinegar Corydalis Rhizoma and dysmenorrhea model in rats. The weight loss rate, writhing response, serum malondialdehyde(MDA), estradiol(E2), prostaglandin E2(PGE2) and prostaglandin F2α(PGF2α) levels were used as the evaluation indexes of analgesic efficacy. Combined with chemometrics, the main active components of analgesic effect of Zhejiang vinegar Corydalis Rhizoma and the important components with great contribution to the content were screened.RESULTS The fingerprints of different batches of Zhejiang vinegar Corydalis Rhizoma were established, and nine components were identified; compared with the blank group, the weight loss rate, writhing reaction, MDA, E2 and PGF2α levels in the model group were significantly increased. Compared with the model group, the above indexs in the administration group was decreased. Compared with the blank group, the PGE2 level in the model group was significantly decreased. Compared with the model group, the PGE2 level in the administration group was significantly increased. The vinegar Corydalis Rhizoma produced in Zhejiang had a good analgesic effect, and the main active components of its analgesic effect were protopine, palmatine hydrochloride, and dehydrocorydaline. The important components with greater contribution to the content were tetrahydropalmatine, protopine, palmatine hydrochloride and stylopine.CONCLUSION The efficacy of Zhejiang vinegar Corydalis Rhizoma is the result of the combined action of multiple components, and each component has a strong correlation with the pharmacodynamic indexes. This study provides a reference for the screening of analgesic material basis of Zhejiang vinegar Corydalis Rhizoma.

Objective To analyze differential metabolites (DMs) in the urine of workers with occupational nickel exposure using non-targeted metabolomics, and to screen differential metabolic pathways. Methods A total of 30 nickel exposed workers were selected as the exposure group, and 30 administrative staff from the same factory were selected as the control group using the judgment sampling method. Urine samples of the individuals from the two groups were collected. The ultra-high performance liquid chromatography with quadrupole time-of-flight mass spectrometry and non-targeted metabolomics were used to detect and identify metabolites. The differential metabolic profiles were compared between workers of the two groups, and key differential metabolic pathways and potential biomarkers were screened. The association of DMs and urinary nickel level were evaluated by Spearman correlation coefficients. The sensitivity and specificity of biomarkers were assessed by receiver operating characteristic (ROC) curve analysis. Results A total of 418 metabolites were identified in the urine of worker in the exposure and control groups. The result of principal component analysis and orthogonal partial least squares analysis showed that there were 128 DMs in the urine of workers in the exposure group compared with the control group. These DMs were mainly enriched in glutathione metabolism, carnitine synthesis, and amino acid and nucleotide metabolism pathways, including glycine and serine metabolism. The result of correlation analysis and ROC curve analysis revealed that 4-methylcatechol, 4-vinylphenol sulfate, 2-hydroxyphenylacetone sulfate, 2-dodecylbenzenesulfonic acid, and decylbenzenesulfonic acid could be the potential biomarkers for nickel exposure (all area under the ROC curve >0.800). Conclusion There were significant differences in the urinary metabolic profiles of workers with occupational nickel exposure. The five DMs including 4-methylcatechol, 4-vinylphenol sulfate, 2-hydroxyphenylacetone sulfate, 2-dodecylbenzenesulfonic acid, and decylbenzenesulfonic acid. These DMs could be potential biomarkers of occupational nickel exposure.

Objective To analyze the factors affecting the risk of hepatocellular carcinoma(HCC)in patients with chronic hepatitis B-associated cirrhosis(CHB-Cir)complicated by essential hypertension(EH)and explore the impact of EH on HCC risk in patients with CHB-Cir.Methods This study was conducted among the patients with CHB-Cir with or without EH received antiviral therapy in the Infectious Disease Department,Third Affiliated Hospital of Xinxiang Medical University from January,2017 to January,2024.The cases with insufficient follow-up time or missing data were excluded.The patients were subjected to propensity score matching in a 1:1 ratio to form an EH group and a non-EH group.The Kaplan-Meier method was used to compare the cumulative incidence of HCC between the two groups,and the Cox proportional hazards regression model was used to analyze the risk of HCC and the factors affecting HCC risk.Results A total of 390 CHB-Cir patients(274 male and 116 female patients)were enrolled in this study,including 195 with EH and 195 without EH.In these patients,EH was significantly correlated with the occurrence of HCC(HR=1.69,P=0.002).Multivariate analysis suggested that the male gender(HR=1.73,P=0.005),a family history of liver cancer(HR=2.23,P<0.001),elevated alpha-fetoprotein(HR=2.83,P=0.001),elevated glutathione reductase(HR=1.53,P=0.046),reduced high-density lipoprotein(HR=1.46,P=0.027),and elevated low-density lipoprotein(HR=2.29,P=0.003)were all significantly correlated with HCC occurrence,while elevated triglycerides(HR=0.37,P<0.001)was a protective factor against HCC.In the EH group,treatment with non-RASIs drugs(HR=2.77,P=0.021)and no treatment/diuretic treatment(HR=7.18,P<0.001)were significantly correlated with HCC occurrence.Conclusion Hypertension increases the risk of HCC in patients with CHB-Cir,suggesting the importance of controlling hypertension in these patients.

Objective To evaluate the diagnostic value of myocardial work related parameters in coronary ischemia patients with coronary artery disease(CAD)coronary ischemia using non-invasive left ventricular pressure strain loop(PSL),taking fraction flow reservation(FFR)as the gold standard.Methods From December 2020 to December 2021,53 clinically suspected CAD patients were prospectively enrolled.All patients underwent echocardiography,invasive coronary angiography and FFR measurement.According to the results of coronary angiography,patients were divided into myocardial ischemia group(n=24,FFR≤0.80)and non-myocardial ischemia group(n=29,FFR＞0.80).PSL was used for off-line analysis to obtain the global work index(GWI),global constructive work(GCW),global wasted work(GWW),global work efficiency(GWE),global positive work(GPW),and global systolic constructive work(GSCW)and other myocardial work parameters.The differences of parameter values between the two groups were compared.The diagnostic efficacy of work parameters in myocardial ischemia was analyzed by ROC curve.Results Compared with the non-myocardial ischemia group,GWI,GCW,GPW and GSCW were significantly decreased in the myocardial ischemia group at the 18-,16-,and 12-segment levels(P＜0.001).The ROC curve showed that the AUC results of GWI,GCW,GPW,GSCW at the 18-segment level were 0.803(95％CI 0.679-0.927),0.807(95％CI 0.687-0.928),0.822(95％CI 0.708-0.936),0.819(95％CI 0.703-0.935).The optimal cut-off value of GWI was 1 676.3 mmHg％,and the sensitivity,specificity and accuracy of predicting myocardial ischemia were 70.8％,86.2％and 79.2％,respectively.The optimal cut-off value of GCW was 1 999.4 mmHg％,and the sensitivity,specificity and accuracy of predicting myocardial ischemia were 75.0％,82.8％and 79.2％,respectively.Conclusions Analyzing myocardial work using PSL has good significance for screening suspected myocardial ischemia in CAD patients.

Soft tissue sarcoma (STS) is a group of rare malignant tumors originating from mesenchymal tissue, with a high degree of malignancy and a wide range of pathological subtypes. The prognosis varies among different subtypes, and treatment increasingly relies on selecting appropriate treatment methods for different subtypes. Surgical treatment is still the main treatment method at present, and the development of immune and targeted therapy also brings new hope for the treatment of soft tissue sarcoma. Immune checkpoint inhibitors, oncolytic viruses and T cell therapy have shown well safety and efficacy in clinical trials. Targeted drugs such as trabectedin and lenvatinib have changed the treatment pattern of soft tissue sarcoma. Currently, chemotherapy based on doxorubicin and ifosfamide is still the first line treatment for patients with advanced soft tissue sarcoma who have distant metastasis. However, the adverse reactions of doxorubicin limit its application in elderly patients, and trofosfamide has shown good efficacy and safety as an alternative in clinical trials. The efficacy of postoperative radiotherapy has been confirmed, which can reduce the local recurrence rate after surgical resection of soft tissue sarcoma. In summary, multimodal comprehensive treatment has become the main strategy for the treatment of soft tissue sarcoma. The combination of different treatment methods can generate synergistic effects and help patients obtain more clinical benefits, such as the combination of doxorubicin and immune checkpoint inhibitors, and the combination of antiangiogenic drugs and chemotherapy drugs. At the 2023 annual meeting of the American Society of Clinical Oncology (ASCO), oncologists from all over the world reported many researches related to the treatment of soft tissue sarcoma. This article aims to review the new progress in the treatment of soft tissue sarcoma in the 2023 annual meeting of ASCO.

Objective:To evaluate the clinical value of intraoperative sliding CT in deep brain stimulation (DBS) for Parkinson's disease (PD).Methods:A total of 117 PD patients accepted DBS in Department of Neurosurgery, First Affiliated Hospital of Zhengzhou University from May 2019 to May 2023 were chosen; 46 patients had local anesthesia and 71 had general anesthesia. Bilateral subthalamic nucleus (STN) DBS was performed in 73 patients, bilateral medial globus pallidus (GPi) DBS was performed in 43 patients, and right GPi and left STN DBS was performed in 1 patient. Preoperative/intraoperative sliding CT images and preoperative MRI images were fused to calculate the spatial distance between the preoperative planned target and actual target (adjusting electrode position timely in case of spatial distance greater than 2 mm [electrode displacement]). Differences of spatial distance between preoperative planned target and actual target in patients accepted different types of anesthesia and surgical modalities were compared.Results:All 117 patients were successfully operated and 234 electrodes were implanted. No patients needed a second operation for misalignment of electrodes or poor efficacy. During CT scan, neither anesthesia extubation or mechanical collision nor intracranial hemorrhage complications occurred. Spatial distance between the preoperative planned target and actual target was (1.35±0.50) mm in 117 patients. Displacement was noted in 4 electrodes and immediately adjusted during the operation; and CT re-examination confirmed good electrode position. No statistical significance in spatial distance between the preoperative planned target and actual target was noted between the general anesthesia group and local anesthesia group, and between the STN group and GPi group ( P>0.05). Conclusion:Intraoperative sliding CT is simple, safe and effective, which helps to timely adjust the electrode position during operation, avoids second operation and complications, and improves the safety and efficacy of DBS.

Objective:To explore the core medication law of constipation in the Yi Zong Jin Jian using data mining techniques; To provide idea for the clinical treatment of constipation. Methods:The prescriptions related to constipation in the Yi Zong Jin Jian were summarized, and the frequency statistics, the efficiency statistics of the properties and tastes, correlation analysis and complex network analysis were carried out on the data set using the TCM Inheritance Cloud Platform V1.0, and the visualization was carried out. Results:A total of 106 prescriptions for constipation were included, involving 169 kinds of Chinese materia medica, with a total frequency of 894 times. The high-frequency Chinese materia medica included Rhei Radix et Rhizoma, Glycyrrhizae Radix et Rhizoma, Scutellariae Radix and Angelicae Sinensis Radix, etc. Chinese materia medica was mainly composed of purging drugs, tonifying drugs and clearing heat drugs. The main tastes were pungent, sweet and bitter, while the main properties were cold and warm, and the main meridians were lung, spleen, stomach and liver meridians. 10 drug combinations such as Rhei Radix et Rhizoma-Scutellariae Radix, Rhei Radix et Rhizoma-Natrii Sulfas were obtained by second-order analysis, 9 drug combinations such as Rhei Radix et Rhizoma-Angelicae Sinensis Radix-Glycyrrhizae Radix et Rhizoma, Scutellariae Radix-Coptidis Rhizoma-Rhei Radix et Rhizoma were obtained by third-order analysis, and 12 categories were obtained by community cluster analysis.Conclusions:In the treatment of constipation in the Yi Zong Jin Jian, it follows the academic thought of "warming, clearing and tonifying". It focuses on the method of tonifying and lowering, and takes warming and tonifying deficiency, clearing heat and defecating as the basic treatment, with cold and warm drugs, based on syndrome differentiation and treatment of zang-fu organs. When treating, it is required to prioritize the disease and treat it according to the syndrome.

Objective To analyze the factors affecting the risk of hepatocellular carcinoma(HCC)in patients with chronic hepatitis B-associated cirrhosis(CHB-Cir)complicated by essential hypertension(EH)and explore the impact of EH on HCC risk in patients with CHB-Cir.Methods This study was conducted among the patients with CHB-Cir with or without EH received antiviral therapy in the Infectious Disease Department,Third Affiliated Hospital of Xinxiang Medical University from January,2017 to January,2024.The cases with insufficient follow-up time or missing data were excluded.The patients were subjected to propensity score matching in a 1:1 ratio to form an EH group and a non-EH group.The Kaplan-Meier method was used to compare the cumulative incidence of HCC between the two groups,and the Cox proportional hazards regression model was used to analyze the risk of HCC and the factors affecting HCC risk.Results A total of 390 CHB-Cir patients(274 male and 116 female patients)were enrolled in this study,including 195 with EH and 195 without EH.In these patients,EH was significantly correlated with the occurrence of HCC(HR=1.69,P=0.002).Multivariate analysis suggested that the male gender(HR=1.73,P=0.005),a family history of liver cancer(HR=2.23,P<0.001),elevated alpha-fetoprotein(HR=2.83,P=0.001),elevated glutathione reductase(HR=1.53,P=0.046),reduced high-density lipoprotein(HR=1.46,P=0.027),and elevated low-density lipoprotein(HR=2.29,P=0.003)were all significantly correlated with HCC occurrence,while elevated triglycerides(HR=0.37,P<0.001)was a protective factor against HCC.In the EH group,treatment with non-RASIs drugs(HR=2.77,P=0.021)and no treatment/diuretic treatment(HR=7.18,P<0.001)were significantly correlated with HCC occurrence.Conclusion Hypertension increases the risk of HCC in patients with CHB-Cir,suggesting the importance of controlling hypertension in these patients.

The correlation between hearing loss (HL) and physical performance in patients receiving maintenance hemodialysis (MHD) remains poorly investigated. This study explored the association between HL and physical performance in patients on MHD. Methods: This multicenter cross-sectional study was conducted between July 2020 and April 2021 in seven hemodialysis centers in Shanghai and Suzhou, China. The hearing assessment was performed using pure-tone average (PTA). Physical performance was assessed using the Timed Up and Go Test (TUGT), handgrip strength, and gait speed. Results: Finally, 838 adult patients (male, 516 [61.6%]; 61.2 ± 2.6 years) were enrolled. Among them, 423 (50.5%) had mild to profound HL (male, 48.6% and female, 53.4%). Patients with HL had poorer physical performance than patients without HL (p < 0.001). TUGT was positively correlated with PTA (r = 0.265, p < 0.001), while handgrip strength and gait speed were negatively correlated with PTA (r = –0.356, p < 0.001 and r = –0.342, p < 0.001, respectively). Physical performance in patients aged <60 years showed significant dose-response relationships with HL. After adjusting for confounders, the odds ratios (95% confidence intervals) for HL across the TUGT quartiles (lowest to highest) were 1.00 (reference), 1.15 (0.73–1.81), 1.69 (1.07–2.70), and 2.87 (1.69–4.88) (p for trend = 0.005). Conclusion: Lower prevalence of HL was associated with a faster TUGT and a stronger handgrip strength in patients on MHD.