ObjectiveTo investigate the pharmacodynamic effects of Houshihei San （HSHS） recorded with the effects of treating wind and limb heaviness on muscle tissue injury after middle cerebral artery occlusion （MCAO） in rats through the ferroptosis pathway. MethodsThirty SD male rats were selected and randomly grouped as follows： sham， MCAO， deferoxamine mesylate， high-dose HSHS （HSHS-H， 0.54 g·kg^-1）， and low-dose HSHS （HSHS-L， 0.27 g·kg^-1）， with 6 rats in each group. A laser scattering system was used to evaluate the stability of the MCAO model， and rats were administrated with corresponding agents by gavage for 7 days. During the administration period， behavioral， imaging and other methods were used to systematically evaluate the skeletal muscle tissue injury after MCAO and the therapeutic effect in each administration group. Hematoxylin-eosin staining was employed to evaluate the cross-section of muscle cells. Subsequently， immunohistochemistry was used to detect tumor suppressor p53 and glutathione peroxidase 4 （GPX4） in the soleus tissue. Western blot was employed to determine the protein levels of p53， GPX4， myogenic differentiation 1 （MyoD1）， nuclear factor E₂-related factor 2 （Nrf2）， Myostatin， solute carrier family 7 member 11 （SLC7A11）， muscle ring-finger protein-1 （MuRF1）， and muscle atrophy F-box protein （MAFbx） to verify the therapeutic effect in each group. ResultsCompared with the MCAO group， HSHS enhanced the locomotor ability and promoted muscle regeneration， which suggested that the pharmacological effects of HSHS were related to the inhibition of muscle tissue ferroptosis to reduce the expression of muscle atrophy factors. Behavioral and imaging results suggested that compared with the MCAO group， HSHS ameliorated neurological impairments in rats on day 7 （P<0.01）， enhanced 5-min locomotor distance and postural control （P<0.01）， strengthened grasping power and promoted muscle growth （P<0.01）， stabilized skeletal muscle length and weight （P<0.01）， and increased the cross-section of muscle cells （P<0.01）. Compared with the MCAO group， HSHS promoted the increases in glutathione and superoxide dismutase content and inhibited the increase in malondialdehyde content （P<0.05，P<0.01）. Ferroptosis pathway-related assays suggested that HSHS reduced the p53-positive cells and increased the GPX4-positive cells （P<0.01）. HSHS ameliorated muscle function decline after stroke by promoting the expression of GPX4， Nrf2， SLC7A11， and MyoD1 and inhibiting the expression of p53， Myostatin， MurRF1， and MAFbx to reduce ferroptosis in the muscle （P<0.01）. ConclusionHSHS， prepared with reference to the method in the Synopsis of Golden Chamber， can simultaneously reduce the myolysis and increase the protein synthesis in the skeletal muscle tissue after ischemic stroke by regulating the ferroptosis pathway.

Objective To investigate the effect of erythroid differentiation associated gene(EDAG)on hematopoietic stem/progenitor cells(HSPCs)under chronic inflammation.Methods In this study,EDAG-/-and wild type(WT)mice were divided into the experiment group and control group.An infectious chronic inflammation model was established via multiple intraperitoneal injections of Listeria monocytogenes(LM),while a sterile chronic inflammation model was generated via multiple intraperitoneal injections of polyinosinic-polycytidylic acid[Poly(I∶C)].The effect of EDAG on HSPCs was explored under chronic inflammation conditions.Results In the LM repeated infection model,EDAG deletion led to a decrease in HSPCs and long-term hematopoietic stem cells(LT-HSCs)in mice as well as a significant bias towards myeloid differentiation in peripheral blood.Similarly,EDAG knockout also resulted in reduced numbers of HSPCs and decreased colony-forming ability in aseptic chronic inflammation models.Conclusion EDAG deficiency accelerates HSPC depletion in young mice under chronic inflammation,indicating strong protection of EDAG against HSPC damage induced by chronic inflammation.

Objective:To investigate the difference in the radiation sensitivity of hematopoietic stem and progenitor cells (HSPCs) derived from fetal liver and bone marrow.Methods:HSPCs from fetal liver of 14.5 d embryo or bone marrow of 8 week-old mice were isolated to receive a single dose of 5 or 10 Gy irradiation in vitro using a 60Co irradiator. Twelve hours later, the cell apoptosis, mitochondrial reactive oxygen species (ROS) level, colony formation ability and DNA damage in HSPCs were detected. Freshly isolated HSPCs were injected into lethally irradiated CD45.1 + C57BL/6J mice (4.5 Gy+ 5 Gy with an interval of 30 min) Chimerism rate, lineage constitution, and cell cycle were analyzed 12 weeks after transplantation. Results:Compared with bone marrow HSPCs after irradiation, the percentage of apoptosis in fetal liver HSPCs was significantly higher ( t=16.21, 12.27, P<0.05), the level of ROS was dramatically elevated ( t=68.72, 18.89, P<0.05). At 10 Gy, fetal liver HSPCs could not form colonies at all ( t=12.41, 15.67, 9.46, P<0.05). γ-H2AX immunofluorescence staining showed that the DNA damage of fetal liver HSPCs was more severe after irradiation, and the number of Foci formed was significantly higher than that of bone marrow HSPCs ( t=2.27, 2.03, P< 0.05), which indicated that fetal liver HSPCs were more sensitive to radiation. The chimerism rate of transplanted fetal liver HSPCs was lower than that of bone marrow cells ( t=5.84, P<0.05) with a higher proportion of myeloid lineage, suggesting that fetal liver HSPCs had lower in vivo reconstitution capacity than bone marrow HSPCs and were more prone to myeloid differentiation. The cell cycle of bone marrow HSPCs from transplanted chimeric mice was examined, and the proportion of S-phase was significantly higher in the fetal liver group than that in the bone marrow group ( t=2.89, P<0.05). Mitochondrial stress results showed that fetal liver HSPCs had higher basal respiratory capacity ( t=39.19, P<0.05), proton leakage ( t=6.64, P<0.05), ATP production ( t=9.33, P<0.05), and coupling efficiency ( t=7.10, P<0.05) than bone marrow c-Kit + cells, while respiratory reserve capacity ( t=5.53, P< 0.05) was lower than that of bone marrow c-Kit + cells. Conclusions:HSPCs derived from fetal liver display higher radiosensitivty compared with bone marrow HSPCs, laying the foundation for an in-depth illustration of the effects of radiation on hematopoietic stem cells at different developmental stages.

Objective To study the clinical effect of mouse nerve growth factor in the treatment of patients with traumatic facial nerve injury .Methods From April 2015 to October 2017,60 patients with traumatic facial nerve injury in the People's Hospital of Sanmen County were selected and divided into observation group and control group by completely random assignment method ,with 30 cases in each group.All patients were given dexamethasone ,sodium aescinate and nimodipine treatment ,on this basis,the control group was given mecobalamin treatment ,the observation group was given mouse nerve growth factor treatment .The changes of facial nerve function before treatment were assessed,and the clinical efficacy was compared between the two groups .Results After treatment,the facial nerve function grade in the observation group (Ⅰ18 cases,Ⅱ8 cases,Ⅲ2 cases,Ⅳ0 case,Ⅴ1 case,Ⅵ1 case) was significantly better than those in the control group (Ⅰ 6 cases,Ⅱ4 cases,Ⅲ5 cases,Ⅳ8 cases,Ⅴ4 cases,Ⅵ3 cases),the difference was statistically significant (χ2＝12.87,P＜0.01).The total effective rate of the observation group was 93.33%,which was significantly higher than 70.00% of the control group,the difference was statistically significant (χ2＝7.81,P＜0.05).Conclusion Mouse nerve growth factor in the treatment of patients with traumatic facial nerve injury has important clinical value ,it is helpful to alleviate the clinical symptoms ,improve facial nerve function and clinical cure rate ,it is worthy of clinical application .

ABSTRACT:Objective To compare the short-term efficacy of hand-assisted laparoscopic surgery and laparoscopy-assisted radical operation,and evaluate the safety of hand-assisted laparoscopic surgery and its effect on systemic stress inflammation in colorectal cancer.Methods Totally 100 patients who had colorectal cancer and underwent radical operation from September 2012 to March 2016 were selected and divided into hand-assisted laparoscopy group (Group A,n=6 3 )and laparoscopy-assisted group (Group B,n=3 7 )according to the random number table.We compared operation index,postoperative complications and systemic inflammatory response levels in the two groups.Results Group B outperformed Group A in operation time,bleeding volume and drainage volume (P<0 .0 5 ),but with longer flatus time after operation than that in Group A (P<0 .0 5 ).There was no significant difference in hospitalization length and the incidence of postoperative complications between the two groups (P>0 .0 5 ).Systemic inflammatory reaction index of neutral granulocyte number and C reactive protein (CRP)showed no significant differences between the two groups (P>0 .0 5 ),but inflammatory cytokine IL-6 level in Group B was significantly higher than the that in Group A (P<0.05).Conclusion Hand-assisted laparoscopic surgery has shorter operation time,lower bleeding volume than laparoscopy-assisted operation in the treatment of colorectal cancer,but the latter one has more advantages in postoperative gastrointestinal function recovery.The inflammatory cytokine IL-6 level in hand-assisted laparoscopic surgery is higher than that in laparoscopy,suggesting that the choice of operation methods should be based on the actual situation in clinical application.

Objective To evaluate the expressions of Cyr61 and β‐catenin protein in gallbladder carcinoma tissues and investigate their association with the clinicopathologic features of gallbladder carcinoma patients . Methods The expressions of Cyr61 and β‐catenin protein in 50 cases of gallbladder carcinoma and 19 cases of normal tissue were detected by immunohistochemical S‐P method .Results ① The positive expression rate of Cyr61 in gallbladder carcinoma tissues was 66 .0% (33/50) ,which was significantly higher than that in the normal tissues group (26 .3% ) .The expression of Cyr61 was related to tumor differentiation ,TNM stage and lymph node metastasis of gallbladder carcinoma (P=0 .010 ,P=0 .014 ,P=0 .007;P<0 .05) .② The positive expression rate ofβ‐catenin in gallbladder carcinoma tissues was 84 .0% (42/50) ,which was significantly higher than that in the normal tissues group 15 .7% (3/19);the expression of β‐catenin was related to tumor differentiation ,TNM stage and lymph node metastasis of gallbladder carcinoma (P=0 .018 ,P=0 .002 ,P=0 .024;P<0 .05) .③ Correlation test showed that Cyr61 andβ‐catenin were positively correlated in gallbladder carcinoma and adjacent normal tissues (r=0 .378 , P< 0 .05) .Conclusion Cyr61 and β‐catenin are highly expressed in gallbladder carcinoma tissues . Cyr61 andβ‐catenin expressions are closely related to the clinicopathologic features (tumor differentiation ,TNM staging and lymph node metastasis) in gallbladder carcinoma .Cyr61 and β‐catenin may have a synergistic effect in promoting progression and development of gallbladder carcinoma .Combined detection of Cyr61 and β‐catenin in gallbladder carcinoma tissues will contribute to the clinical diagnosis and prognosis .

Objective To study the microorganism viability in compound resorcinol lotion ,confirming with bactericidal compound resorcinol lotion .Methods 5 bottles of compound resorcinol lotion were respectively added Escherichiacoli ,Staph‐ylococcus aureus ,Bacillus subtilis ,Candida ,Aspergillus niger ,placed 24 h ,then the membrane filtration method was used respectively in 5 species of microbial limit test .Results In compound resorcinol lotion ,5 microbial strains were not given birth to bacterium ,were killed ,the recovery rate was zero .Conclusion Microbial cannot survive in compound resorcinol lotion .

Intracranial aneurysm is an abnormal bulging of intracranial artery wall. Its rupture can lead to subarachnoid hemorrhage. About 50% of patients with aneurysmal subarachnoid hemorrhage will die or have poor outcomes. At present, intracranial aneurysm is considered as a complex disease associated with genetic and environmental factors. Although the etiology of intracranial aneurysm is not completely clear, a lot of evidence has shown that the genetic factor plays an important role in the processes of its occurrence, development and rupture. This article reviews the advances in gene linkage research, genome wide association studies, and gene expression research in intracranial aneurysm in recent years.

Objective To investigate the effects of ropivacaine infiltration combined with dezocine on the agitation during recovery from general anesthesia in the patients undergoing cerebral surgery.Methods Sixty patients of both sexes,aged 18-64 yr,of ASA physical status Ⅰ or Ⅱ,undergoing elective neurosurgery under general anesthesia,were randomly divided into 4 groups (n =15 each) using a random number table:control group (group C),ropivacaine group (group R),dezocine group (group D),and ropivacaine + dezocine group (group RD).Group C received local infiltration with normal saline 20 ml at 10 min before skin incision,and normal saline 2 ml was injected intravenously at 30 min before the end of operation.The patients received local infiltration with 0.5％ ropivacaine 20 ml at 10 min before skin incision,and normal saline 2 ml was injected intravenously at 30 min before the end of operation in group R.Group D received local infiltration with normal saline 20 ml at 10 min before skin incision,and dezocine 10 mg was injected intravenously at 30 min before the end of operation.The patients received local infiltration with 0.5％ ropivacaine 20 ml at 10 min before skin incision,and dezocine 10 mg was injected intravenously at 30 min before the end of operation in group RD.The time for recovery from anesthesia,extubation time,and development of agitation after extubation in PACU were recorded.Agitation was assessed and scored.Ramsay sedation score and VAS score were recorded immediately after extubation.The development of cardiovascular events and respiratory depression was recorded within 10 min after extubation.Before induction of anesthesia (T0),at the end of surgery (T1) and immediately after extubation (T2),blood samples were collected from the dorsal artery of foot for deter mination of the levels of blood glucose,plasma cortisone,epinephrine and norepinephrine.Results Compared with group C,the agitation score,incidence of agitation,VAS score,and incidence of postoperative hypertension were significantly decreased in R,D and RD groups,especially in R and D groups.The time for recovery from anesthesia and time for extubation were significantly shorter in R and RD groups than in group C.Ramsay sedation scores were significantly higher at the onset of extubation in R,D and RD groups than in group C.Ramsay sedation scores were significantly higher in D and RD groups than in group R.Compared with group C,the levels of blood glucose,plasma cortisone,epinephrine and norepinephrine were significantly decreased in R,D and RD groups,especially in group RD.Conclusion Ropivacaine infiltration combined with dezocine can reduce the agitation during recovery from general anesthesia in the patients undergoing cerebral surgery.

Objective To investigate the copy number changes on chromosome 3q26. 1 in urothelial carcinoma of the bladder, and to explore its potential clinical significance. Methods The microarray-based comparative genomic hybridization (Array-CGH) approach was used to analyze the genome-wide copy number changes of 35 tumor tissue samples of bladder cancer. To confirm the loss of a small fragment in 3q26. 1 detected by Array-CGH, real-time fluorescent quantitative polymerase chain reaction (real-time PCR) was performed with 57 frozen tumor tissue samples and 34 formalinfixed paraffin-embedded (FFPE) tumor tissue samples. The urine sediment cells collected from 15 healthy volunteers and 29 bladder cancer patients were checked as above. Results The Array-CGH data showed that the copy number loss of a small fragment in 3q26. 1 was detected in 77.1% (27/35)of the tumor tissue samples investigated. Real-time PCR analysis validated this loss of a small fragment of 3q26.1 with high frequencies in both 57 frozen tumor samples and 34 FFPE tumor samples.The percentage of samples exhibiting loss was 78.9% (45/57) and 100. 0% (34/34) respectively.Furthermore, the relative copy number of the 3q26.1 small fragment was significantly lower in the urinary sediment cells of the patients (median=0. 0020), comparing with that of healthy controls (median=0. 0030) (P＜0.01). Conclusions Loss of the small fragment in 3q26.1 could be a characteristic genetic change of urothelial carcinoma of the bladder. It may serve as a potential molecular marker for bladder cancer.