Objective To explore the influence of the extract of wen-pi-tang on the memory and SOD and MDA of normal mice and cerebral ischemia reperfusion mice.Method The mice were divided into normal group,sham operation group,model group,aqueous extract and alcohol extract of wen-pi-tang (1.0 g/kg,0.5 g/kg,0.25g/kg).Model mice with cerebral ischemia reperfusion were made by blocking bilateral common carotid artery.The influence on memory behavior of normal mice and mice with cerebral ischemia reperfusion were tested by gavage for 10 days with extract of wen-pi-tang through step-down and step-through tests.Then SOD activity and content of the MDA were tested.Result In step-down test,compared with normal group,extract of wen-pi-tang with all doses made normal mice' latency longer,error frequency fewer,with high does clearest (P＜0.05)(latency:(187.17±99.00) s,(270.73±44.73) s,(260.45±63.78) s,error frequency(1.75± 1.71) times,(0.45±0.69) times,(0.75±0.97) times) ;in step-through test,compared with normal group,aqueous extract with high and middle doses and alcohol extract with longe doses could made latency of cerebral ischemia reperfusion mice longer and error frequency fewer (latency(157.15±84.91) s,(250.63±58.98) s,(251.12±78.22) s,(245±84.82) s,error frequency(2.15± 1.22) times,(0.75±0.89) times,(0.75± 1.16) times,(0.625 ±0.92) times) (P＜0.05) ; extract of wen-pi-tang with high and middle does increased SOD activity obviously compared with normal group(P＜0.05),and the content of MDA was obviously lower compared with normal group(P＜0.05,P＜0.01).Conclusion Extracts of wen-pi-tang can improve the memory function of normal mice,and the memory of cerebral ischemia reperfusion mice.The mechanism can be related to the increase of SOD activity and the decrease of the content of MDA.

Objective The optimal community nursing intervention methods for community patients with primary hypertension was discussed in order to promote their health. Methods System management and community intervention were applied to 140 community patients with primary hypertension for 2 years, including strengthing community communication, popularizing health knowledge, improving cognition of danger of hypertension, hypertensive disease project management, tracking and monitoring the patients with primary hypertension and medication supervision.The cognition rate of prevention and control knowledge for hypertension, hypertension-related cardiovascular complication and formation rote of hypertension control behavior were compared before and after intervention. Results The prevalence rate of the knowledge on hypertension was increased, accompanied with promoting regular medication in patients with hypertension, decreasing cardiovascular complication caused by hypertension and heightening formation rate of controlling behavior in hypertension patients.Conclusions Applying community nursing intervention is practically effective in prevention and treatment of primary hypertension, deserving promotion and application in community medical institute.

Objective To make a comparison of curative effect of 1 and 2 ureters anastomosis in modified sigma operation. Methods Modified sigma operation was used after radical cystectomy in 14 cases of bladder transitional cell carcinoma and 1 case of adenocarcinoma of the bladder.We used a folded suture of 25 cm from the sigmoid colon to make the U-shaped urinary reservoirs to anastomose with the ureters in study group.Among study group,1 ureter was anastomosed with urinary reservoir in 5 cases.In the other 10 cases,1.5-2 cm of the terminal parts of 2 ureters were sutured tI am not sure what the authors mean by big diamogether and then anastomosed with the urinary reservoir.Results 15 cases obtained good voiding control and no obvious water-electrolyte disturbance occurred.All the patients were cured and discharged within 15 to 22 days.Thirteen cases were followed-up in 8 to 24 month time period.Anastonmtic stenosis and moderate-severe hydronephrosis occurred in 4 cases with 1 ureter anastomosis.No hydronephrosis occurred in the 9 cases with 2 ureters anastomosis.Conclusions Modified sigma operation has the advantages of less injury and fewer complications.The patients can obtain self-control urination by anal sphincter without urine bags or intermittent catheterization,so the life quality of the patients is improved.Modified sigma operation with 2 ureters anastomosis has big diameter and there was a lower incidence of serious complications such as anastomotic stenosis.

Objective To study the ingenious method to suture laparoscopic puncture holes.Methods A curved needle and a hook-like needle were used in 650 patients during biliary tract surgery.Results The curved needle was used in 200 patients and the hook-like needle was used in 450 patients.All patients had good wound healing except for one patient who developed puncture hole seroma under the xiphoid.The patient was treated with drainage and improved rapidly.No other complications such as puncture hole hemorrhage,infection and puncture hole hernia occurred.Conclusion Suturing using a curved needle and a hook-like needle was easy and effective,and avoided complications.

Cholecystolithiasis with choledocholithiasis (CCL) is a common disease.The removal of common bile stone is a challenge for the surgery.This paper discussed the clinical application of three stone removal techniques including direct stone removal,irrigation and stone extraction by basket under cholangioscopy in order to take the stones effectively and safely,shorten the procedure time,avoid the injuries of common bile duct wall caused by the repetition of a single method such as biliary endoscopic stone extraction,reduce the difficulty of taking stone and enhance recovery of patients.

Objective:To investigate the application value of triangular modal construed for planning approach of laparoscopic local resection of liver tumors located in superior part of central liver lobe.Methods:The retrospective and descriptive study was conducted. The clinicopathological data of 10 patients who underwent local laparoscopic resection of liver tumors located in superior part of central liver lobe at the Affiliated Hospital of Qingdao University from January to June 2020 were collected. There were 6 males and 4 females, aged from 41 to 63 years, with a median age of 54 years. Preoperative triangular model was constructed for all patients to plan approach of laparoscopic local resection of liver tumors located in superior part of central liver lobe. Observation indicators: (1) preoperative general situations of patients; (2) surgical situations; (3) follow-up. Follow-up was conducted by outpatient examination or telephone interview to detect tumor recurrence and survival of patients up to February 2021. Measurement data with normal distribution were expressed as Mean± SD. Count data were expressed was absolute numbers. Results:(1) Preoperative general situations of patients: hepatocellular carcinoma was found in 7 cases, inthahepatic cholangiocarcinoma was found in 2 cases and ovarian cancer with liver metastasis was found in 1 case. Three cases had tumors located in S4a segment, 2 cases had tumors located in ventral subsegment of S8 segment, 2 cases had tumors located in dorsal subsegment of S8 segment, and 3 cases had tumors across the ventral segment of S4a+S8. The diameter of tumors was (3.4±1.0)cm. (2) Surgical situation: all the 10 patients underwent R 0 resection successfully, with no intraoperative blood transfusion or conversion to open surgery. The operation time of 10 patients was (149±59)minutes, the volume of intraoperative blood loss was (294±163)mL, the minimum surgical margin of specimen was (1.1±0.2)cm. The alanine aminotransferase was (324±151)U/L on the postoperative first day, the aspartic aminotransferase was (401±113)U/L on the postoperative first day, and the duration of postoperative hospital stay was (9±4)days. No bile leakage, hemorr-hage, reoperation or other complications occurred in all patients. (3) Follow-up: 10 patients were followed up for 7?13 months, with a median follow-up time of 11 months. All patients had no margin recurrence or distant metastasis. Conclusion:It is safe and feasible to construct triangular modal for planning approach of local laparoscopic resection of liver tumors located in superior part of central liver lobe.

Objective To explore the nursing measures of proportional assist ventilation (PAV) in order to improve the quality of the treatment in the neonatal respiratory failure (NRF).Methods The clinical nursing data of 56 NFR patients with PAV were retrospectively analyzed and summarized.Results All patients had been cured,and the average time of mechanical ventilation was (74.1 ± 11.2) h,and the average time of oxygen inhalation was (5.3 ± 2.1)d,and the average time of hospital stay was (12.6 ± 3.5)d,and the incidence rate of ventilator associated pneumonia (VAP) was 12.5％,and other complications including air leak and blood pressure drop and so on were not found.Conclusions The standardized nursing measures of PAV can reduce the incidence rate of VAP,and shorten the time of mechanical ventilation,and increase the quality of the treatment in the NRF.

Genetic studies have revealed a critical role of Distal-homeobox (Dlx) genes in bone formation, and our previous study showed that Dlx2 overexpressing in neural crest cells leads to profound abnormalities of the craniofacial tissues. The aim of this study was to investigate the role and the underlying molecular mechanisms of Dlx2 in osteogenic differentiation of mouse bone marrow stromal cells (BMSCs) and pre-osteoblast MC3T3-E1 cells. Initially, we observed upregulation of Dlx2 during the early osteogenesis in BMSCs and MC3T3-E1 cells. Moreover, Dlx2 overexpression enhanced alkaline phosphatase (ALP) activity and extracellular matrix mineralization in BMSCs and MC3T3-E1 cell line. In addition, micro-CT of implanted tissues in nude mice confirmed that Dlx2 overexpression in BMSCs promoted bone formation in vivo. Unexpectedly, Dlx2 overexpression had little impact on the expression level of the pivotal osteogenic transcription factors Runx2, Dlx5, Msx2, and Osterix, but led to upregulation of Alp and Osteocalcin (OCN), both of which play critical roles in promoting osteoblast maturation. Importantly, luciferase analysis showed that Dlx2 overexpression stimulated both OCN and Alp promoter activity. Through chromatin-immunoprecipitation assay and site-directed mutagenesis analysis, we provide molecular evidence that Dlx2 transactivates OCN and Alp expression by directly binding to the Dlx2-response cis-acting elements in the promoter of the two genes. Based on these findings, we demonstrate that Dlx2 overexpression enhances osteogenic differentiation in vitro and accelerates bone formation in vivo via direct upregulation of the OCN and Alp gene, suggesting that Dlx2 plays a crucial role in osteogenic differentiation and bone formation.
Animals ; Cell Differentiation ; physiology ; Core Binding Factor Alpha 1 Subunit ; Homeodomain Proteins ; metabolism ; Mesenchymal Stem Cells ; metabolism ; Mice ; Mice, Nude ; Osteoblasts ; metabolism ; Osteocalcin ; drug effects ; Osteogenesis ; physiology ; Transcription Factors ; metabolism ; Up-Regulation

Objective·To explore the effect of all-trans retinoic acid(ATRA)of different concentrations on osteogenic differentiation of jaw bone mesenchymal stem cells(jBMSCs)in rats.Methods·jBMSCs from 4-week-old Sprague-Dawley(SD)rats were isolated and cultured with whole bone marrow adherence method.The surface antigens were identified by using flow cytometry.Alkaline phosphatase(ALP)staining/alizarin red staining,oil red O staining and alcian blue staining were used to prove the multilineage differentiation potential of jBMSCs after osteogenic,adipogenic and chondrogenic induction respectively.jBMSCs were induced in osteogenic medium with ATRA of concentration of 0.01,0.1,1,5,10,20 μmol/L in vitro,and dimethyl sulfoxide(DMSO)was used as control group.Cell viability of jBMSCs in different groups were determined by CCK8.ALP staining and alizarin red staining were used to investigate the osteogenic ability of jBMSCs in each group and screened the concentrations for subsequent experiments.Quantitative real-time polymerase chain reaction(qPCR)and immunofluorescence staining were used to analyze the expressions of osteogenesis-related genes and proteins in jBMSCs of different concentrations.Results·The flow cytometry analysis showed that more than 98%of P1 jBMSCs were positive for CD29+CD90+CD31-CD45-,which was congruent with the characteristics of bone mesenchymal stem cells.The results of ALP staining/alizarin red staining,oil red O staining and alcian blue staining indicated that the P1 jBMSCs had the multilineage differentiation potential of osteogenesis,adipogenesis and chondrogenesis.The results of ALP staining/alizarin red staining showed that the osteogenic activity and mineralization ability of jBMSCs in 0.01,0.1 and 1 μmol/L ATRA groups were increased compared with those in the control group,while the osteogenic activity and mineralization ability were decreased when the concentration of ATRA increased,especially higher than 5 μmol/L(all P<0.05).qPCR analysis showed that the mRNA expression levels of osteogenesis-related genes such as Alp,bone sialoprotein(Bsp),collagen type Ⅰ α1(Col1a1)and osteocalcin(Ocn)were higher in the 0.1 and 1 μmol/L ATRA groups compared to the control group.However,further increasing the concentration of ATRA led to a decrease in gene expression levels,and when the concentration exceeded 5 μmol/L,it began to be lower than the control group level(all P<0.05).The immunofluorescence staining showed that the expression of osteogenic related proteins SP7,ALP and OCN in the 0.1 and 1 μmol/L ATRA groups were increased compared to the control group,while further increasing the concentration of ATRA led to a decrease in protein expression.When the concentration was higher than 5 μmol/L,it began to be lower than the control group level(all P<0.05).Conclusion·Lower concentrations(0.1,1 μmol/L)of ATRA can promote the osteogenic differentiation of rat jBMSCs,and the promoting effect reaches its peak at 0.1 μmol/L,while the effect can be weakened by further increasing the concentration.Higher concentrations(5,10,20 μmol/L)of ATRA could inhibit the osteogenic differentiation of rat jBMSCs,showing an inhibitory effect.In this study,the dual-directional effect of retinoic acid on osteogenic differentiation of jBMSCs was demonstrated in vitro,and 0.1 μmol/L ATRA was identified as the optimal concentration for osteogenic differentiation of jBMSCs in rats,which provided a reference basis for the development of in vivo studies and clinical application of ATRA.