Objective:To investigate the clinical efficacy of minimally invasive double anchoring combined with percutaneous kyphoplasty (PKP) for Kümmell disease.Methods:The clinical data of 24 patients with Kümmell disease who were treated with minimally invasive double anchoring combined with PKP in Cangzhou People's Hospital from October 2022 to March 2024 were retrospectively analyzed. Among them, there were 2 T 10 vertebrae, 5 T 11 vertebrae, 7 T 12 vertebrae, 6 L 1 vertebrae, and 4 L 2 vertebrae. There were 6 males and 18 females. The average age was 72.05±4.52 years (range, 66-80 years). The bone mineral density T value was -3.41±0.77 (range, -2.5-4.5). The stages of Li's Kümmell disease included 13 cases of stage II and 11 cases of stage III. The operation time, intraoperative blood loss, and volume of bone cement injected were recorded. The vertebral index, vertebral angle and Cobb angle of diseased segment were measured before and after operation. The visual analogue scale (VAS) was used to assess the degree of pain, the Oswestry disability index (ODI) and the Japanese Orthopaedic Association (JOA) low back pain scale were used to assess spinal function. The Medical Outcome Study short form 36 item health survey (SF-36) was used to assess the general health status of the patients. The postoperative symptom recovery was evaluated by Odom criteria. Results:The mean operative time of the 24 patients was 35.32±6.86 min, the injected volume of bone cement was 4.39±1.72 ml, and the intraoperative blood loss was 16.56±5.21 ml. All patients were followed up for 10 to 14 months, with an average of 11.7 months. Postoperative CT examination showed that the screw positions were satisfactory, and no loosening or displacement of bone cement mass occurred. On the first day after surgery, the vertebral body index, vertebral body angle and Cobb angle of diseased segment were 77.71%±2.75%, 12.40°±1.53° and 25.77°±4.49°, respectively, which represented significant improvements from the preoperative values of 43.09%±5.66%, 22.12°±2.92° and 46.98°±5.68° before surgery ( P<0.05). At the last follow-up, the values were 76.18%±2.32%, 12.41°±2.53°, 26.14°±4.87°, respectively, which were significantly improved compared with those before surgery ( P<0.05), but there was no statistical significance compared with the first day after surgery ( P>0.05). The VAS, ODI and JOA scores on the first day after surgery were 2.11±0.87 points, 22.46±5.49 points and 27.68±2.45 points, respectively, which were significantly improved compared with those before surgery 7.50±0.98 points, 76.25±8.56 points and 14.96±4.91 points ( P<0.05). At the last follow-up, the values were 2.26±0.88, 23.87±3.25 and 26.58±2.77, respectively, which were significantly improved compared with those before surgery ( P<0.05), and there was no statistical significance compared with the first day after surgery ( P>0.05). All 24 patients completed SF-36 scale assessment, and the results showed that there were statistically significant differences in physiological function, physiological role, physical pain, general health status, social function scores and mental health between the patients before surgery and the last follow-up ( P<0.05), while there were no statistically significant differences in vitality and emotional function ( P>0.05). At the last follow-up, the Odom criteria showed excellent results in 18 cases, good in 4 cases, and fair in 2 cases. Conclusions:The application of minimally invasive double anchoring (single nail fixation) combined with PKP in the treatment of Kümmell disease can effectively prevent the loosening and displacement of bone cement masses, and the fixation effect is satisfactory, which can restore the height of the injured vertebrum, reduce kyphosis and improve spinal function. The clinical symptoms of the patients were significantly improved, and the quality of life was enhanced.

Objective:To investigate the clinical efficacy of minimally invasive double anchoring combined with percutaneous kyphoplasty (PKP) for Kümmell disease.Methods:The clinical data of 24 patients with Kümmell disease who were treated with minimally invasive double anchoring combined with PKP in Cangzhou People's Hospital from October 2022 to March 2024 were retrospectively analyzed. Among them, there were 2 T 10 vertebrae, 5 T 11 vertebrae, 7 T 12 vertebrae, 6 L 1 vertebrae, and 4 L 2 vertebrae. There were 6 males and 18 females. The average age was 72.05±4.52 years (range, 66-80 years). The bone mineral density T value was -3.41±0.77 (range, -2.5-4.5). The stages of Li's Kümmell disease included 13 cases of stage II and 11 cases of stage III. The operation time, intraoperative blood loss, and volume of bone cement injected were recorded. The vertebral index, vertebral angle and Cobb angle of diseased segment were measured before and after operation. The visual analogue scale (VAS) was used to assess the degree of pain, the Oswestry disability index (ODI) and the Japanese Orthopaedic Association (JOA) low back pain scale were used to assess spinal function. The Medical Outcome Study short form 36 item health survey (SF-36) was used to assess the general health status of the patients. The postoperative symptom recovery was evaluated by Odom criteria. Results:The mean operative time of the 24 patients was 35.32±6.86 min, the injected volume of bone cement was 4.39±1.72 ml, and the intraoperative blood loss was 16.56±5.21 ml. All patients were followed up for 10 to 14 months, with an average of 11.7 months. Postoperative CT examination showed that the screw positions were satisfactory, and no loosening or displacement of bone cement mass occurred. On the first day after surgery, the vertebral body index, vertebral body angle and Cobb angle of diseased segment were 77.71%±2.75%, 12.40°±1.53° and 25.77°±4.49°, respectively, which represented significant improvements from the preoperative values of 43.09%±5.66%, 22.12°±2.92° and 46.98°±5.68° before surgery ( P<0.05). At the last follow-up, the values were 76.18%±2.32%, 12.41°±2.53°, 26.14°±4.87°, respectively, which were significantly improved compared with those before surgery ( P<0.05), but there was no statistical significance compared with the first day after surgery ( P>0.05). The VAS, ODI and JOA scores on the first day after surgery were 2.11±0.87 points, 22.46±5.49 points and 27.68±2.45 points, respectively, which were significantly improved compared with those before surgery 7.50±0.98 points, 76.25±8.56 points and 14.96±4.91 points ( P<0.05). At the last follow-up, the values were 2.26±0.88, 23.87±3.25 and 26.58±2.77, respectively, which were significantly improved compared with those before surgery ( P<0.05), and there was no statistical significance compared with the first day after surgery ( P>0.05). All 24 patients completed SF-36 scale assessment, and the results showed that there were statistically significant differences in physiological function, physiological role, physical pain, general health status, social function scores and mental health between the patients before surgery and the last follow-up ( P<0.05), while there were no statistically significant differences in vitality and emotional function ( P>0.05). At the last follow-up, the Odom criteria showed excellent results in 18 cases, good in 4 cases, and fair in 2 cases. Conclusions:The application of minimally invasive double anchoring (single nail fixation) combined with PKP in the treatment of Kümmell disease can effectively prevent the loosening and displacement of bone cement masses, and the fixation effect is satisfactory, which can restore the height of the injured vertebrum, reduce kyphosis and improve spinal function. The clinical symptoms of the patients were significantly improved, and the quality of life was enhanced.

OBJECTIVE： To separate and identify chemical components in ethyl acetate fraction and water fraction from Tripterygium wilfordii， and to provider basis for further pharmacological study. METHODS： The ethyl acetate fraction and water fraction from T. wilfordii were separated and purified by MCI GEL-CHP 20P column chromatography， C18 RP silica gel column chromatography， Sephadex LH-20 gel column chromatography and HPLC. The structures of compounds were analyzed and identified by 1H-NMR， 13C-NMR and physicochemical properties. RESULTS： Two compounds were isolated from ethyl acetate fraction of T. wilfordii， namely orthosphenic acid （compound 1）， dibutylphthalate （compound 2）. Eight glucosides were isolated from water extract of T. wilfordii， namely 2，6-dimethoxy-4-hydroxymethyl-phenyl-1-O-beta-D-glucopyranoside （compound 3）， 2，6-dimethoxy-4-hydroxyphenol-1-O-β-D-glucoside（compound 4）， 4-hydroxy-1-（2-hydroxyethyl）-phenyl-3-O-β-D-glucopyranoside （compound 5）， 3，4-dimethoxy-phenyl-1-O-β-D-glucopyranoside （compound 6），β-adenosine （compound 7）， ligustrin （compound 8）， epicatechin-8-C-β-D-galactoside （compound 9） and 2-hydroxynaringenin-7-O-β-glucoside （compound 10）. CONCLUSIONS： Chemical components of ethyl acetate fraction and water fraction are separated and identified from T. wilfordii.

Objective to investigate the emotional state and childhood trauma among users of amphetaminetype-stimulants under compulsory seclusion rehabilitation in Shaoxing.Methods A cross-sectional design was conducted on 140 users of ATS in Shaoxing compulsory isolation drug rehabilitation center,collecting general information using homemade questionnaires.Using the Patient Health Questionnaire (PHQ-9),Generalized Anxiety Disorder Scale (GAD-7) and Mood Disorder Questionnaire(MDQ) to investigate the emotional state of users of ATS.The Childhood Trauma Questionnaire (CTQ) was applied to explore the childhood trauma experiences of users of ATS.Results Among the 140 users of ATS,84 (60％) users had emotional problems,24 users (17.14％) of anxiety disorder,22 users (15.72％) of depression,27 users (19.28％) of depression and anxiety disorder.66 users (47.1％)experienced at least one childhood trauma.The most common childhood trauma is the physical neglect,60 users (42.9％),followed by emotional neglect in 23 users(16.4％),again sexual abuse in 18 users (12.9％),emotional abuse and physical abuse is relatively fewer.Conclusion Among users of ATS under compulsory seclusion rehabilitation,emotional problems is prevalent.Proper emotional intervention and treatment in users of ATS would promote their mental health,thereby reducing the re-use of ATS,better return to society life.

SUMMARY Thehumanembryonicstemcells(hESCs)serveasaself-renewable,genetically-healthy, pluripotent and single source of all body cells,tissues and organs.Therefore,it is considered as the good standard for all human stem cells by US,Europe and international authorities.In this study,the standard and healthy human mesenchymal progenitors,ligament tissues,cardiomyocytes,keratinocytes,primary neurons,fibroblasts,and salivary serous cells were differentiated from hESCs.The human cellular health-safety of NaF,retinoic acid,5-fluorouracil,dexamethasone,penicillin G,adriamycin,lead ace-tate PbAc,bisphenol A-biglycidyl methacrylate (Bis-GMA)were evaluated selectively on the standar-dized platforms of hESCs,hESCs-derived cardiomyocytes,keratinocytes,primary neurons,and fibro-blasts.The evaluations were compared with those on the currently most adopted cellular platforms.Parti-cularly,the sensitivity difference of PM2.5 toxicity on standardized and healthy hESCs derived fibroblasts, currently adopted immortalized human bronchial epithelial cells Beas-2B and human umbilical vein endo-thelial cells (HUVECs)were evaluated.The results showed that the standardized hESCs cellular plat-forms provided more sensitivity and accuracy for human cellular health-safety evaluation.

Objective To study the effects of different temporal resolution of spiral computed tomography (CT)on perfusion parameters and perfusion curve of cervical cervical cancer.Methods Ten cases of cervical cancer were clinically confirmed with CT perfusion scanning.The original data were acquired using temporal resolution of 0.75 s.Then the original data were grouped according to different temporal resolution,namely,1.5 s group,2.25 s group,3 s group,3.75 s group,4.5 s group,5.25 s group,and 6 s group (experiment group). According to the same mathematical model and ROI of the same part,perfusion parameters (BF,BV,MTT,and PS)in each group were calculated respectively and compared with the original data.Results BF and MTT were relatively sensitive to the change of temporal resolution.When the temporal resolution was 3 s,it had a significant impact.PS and BV were not so sensitive to the change of temporal resolution.Temporal resolution of 4.5 s had a significant effect on PS. There was a significant effect on BV until the temporal resolution was 5.25 s. Conclusion Changing the temporal resolution will lead to corresponding changes of perfusion curve and perfusion parameters.Under the premise that it does not affect the diagnosis,properly decreasing temporal resolution (circu-lar scanning temporal ≤2.25 s)of CT perfusion scanning of cervical cancer can reduce the radiation dose effectively.

Objective:To differentiate human embryonic stem cells ( hESCs ) into keratinocytes ( K-hESCs) and analyse the expression characteristics of biomarkers of K-hESCs.Methods: The hESCs of line H9 were seeded on matrigel in mTeSR1 medium.The hESCs were directly differentiated into kerati-nocytes in epithelial differentiation medium with bone morphogenetic protein 4, retinoic acid and N2 sup-plement.The karyotype of K-hESCs was analyzed, comparing the gene expression differences of K-hESCs with human gingival epithelial cells (HGECs), human immortalized oral epithelial cells (HIOECs) and HaCaT by Real-time PCR.Molecular characteristics of the cell differentiation were observed throughout the process by immunocytochemical techniques.Results:H9-hESCs were successfully differentiated into the cells that exhibited characteristics of keratinocytes in epithelial differentiation medium.The karyotype of K-hESCs was 46, XX; and the keratinocyte gene p63 expression in K-hESCs was significantly lower than that in HaCaT ( P<0.05) , but there was no significant difference of p63 expression in K-hESCs, comparing with that in HGECs and HIOECs ( P >0.05 ) .Conclusion: H9-hESCs could be directly differentiated into K-hESCs.The gene expression of K-hESCs was similar to that of epithelial cells in the early stage of monolayer cells differentiation with high proliferative activity.

A total of 105 patients with first-episode schizophrenia (male =51,female =54) and 99 normal controls (male =51,female =48) were included into this retrospective case-control study.Childhood trauma questionnaire-28 item short form (CTQ-SF) was used to assess the experience of childhood abuse.The result of binary logistic regression showed that emotional abuse (β =0.630,P ＜ 0.05) and emotional neglect(β =0.270,P ＜ 0.05) were included into the final model of predicting schizophrenia.It indicates that patients with first-episode schizophrenia experienced more early life stress than controls.Particularly emotional abuse and emotional neglect may play important roles in the onset of schizophrenia.