Objective To observe the therapeutic effect of hoop circumference drug,Hongzhongxiao tincture,on the treatment of skin abscess in rats under the guidance of defended field theory.Methods Forty SpragueDawley (SD) rats were randomly divided into normal control group,model group,western medicine control group,Hongzhongxiao pretreatment group and Hongzhongxiao treatment group according to the computer generated random number.Subcutaneous abscesses models were reproduced by subcutaneous injection of 1 mL (3-5 × 109 cfu/mL) of staphylococcus aureus,and the normal control group was subcutaneously injected with the same amount of normal saline.After molding,the rats in the model group were treated with normal saline for change of dressing;the western medicine control group was treated with mupirocin ointment for external use;Hongzhongxiao pretreatment group was treated with 2 mL of Hongzhongxiao for dressing 4 hours after the modeling;in Hongzhongxiao treatment group,2 mL dressing was given after the emergence of hard swelling,and the Hongzhongxiao drug range applied was 1 cm over the swelling range.Each group was dressed once daily.The changes of mental state,body weight,skin temperature,range and time of abscess formation,wound ulceration and healing time,transcutaneous oxygen pressure (TcPO2) at the periphery of abscess were observed in each group.Results ① After modeling,the activity of the rats was decreased,the appetite became worse,and the food intake less.Except the normal control group,the rats in other groups had different degrees of mental listlessness.② After 3 days of treatment,the body weight gain of the model group was significantly lower than that of the normal control group (g:8.75 ± 9.85 vs.31.67 ± 7.92,P ＜ 0.01),and continued to 18 days after treatment (g:27.13± 11.70 vs.98.00 ± 8.94);after treatment for 18 days,the body weight gain in the western medicine control group,Hongzhongxiao pretreatment group and Hongzhongxiao treatment group was significantlyhigher than those of model group (g:53.28 ± 19.69,49.12 ± 7.23,44.71 ± 12.42 vs.27.13 ± 11.70,all P ＜ 0.05).③ After 3 days of treatment,the body temperature of the model group was obviously lower than that of the normal control group (℃:33.75 ± 0.68 vs.35.03 ± 0.41,P ＜ 0.01) and continued to 10 days (℃:34.30 ± 0.35 vs.35.03 ± 0.41,P ＜ 0.01).The body temperature of the rats in Hongzhongxiao pretreatment group was significantly lower than that in the normal control group,the model group and the western medicine control group on the 14th day after treatment (℃:33.97 ± 0.83 vs.35.10 ± 0.57,35.01 ± 0.68,35.25 ± 0.23,all P ＜ 0.05).The body temperature of Hongzhongxiao treatment group was significantly higher than that of the Hongzhongxiao pretreatment group (℃:34.87 ± 0.94 vs.33.97 ± 0.83,P ＜0.05).④ After treatment for 13,15,17 days,the contraction rates of swollen area in western medicine control group,hongzhongxiao pretreatment group and hongzhongxiao treatment group were greater than the rate in model group,and the change was most significant on the 17th day after treatment [(96.37 ± 5.09)％,(92.76 ± 13.56)％,(98.41 ± 3.85)％ vs.(77.46 ± 19.07)％,all P ＜ 0.05].⑤ Compared with the model group,the times of abscess localization in the western medicine control group,the Hongzhongxiao pretreatment group and the Hongzhongxiao treatment group was shorter than that in the model group (days:9.28 ± 1.38,7.33 ± 1.97,7.67 ± 1.63 vs.12.63 ± 1.99,all P ＜ 0.05);the time of wound healing in Hongzhongxiao pretreatment group aud Hongzhongxiao treatment group were significantly shorter than those of the model group (days:17.67 ± 1.03,16.83 ± 1.51 vs.19.92 ± 2.33,P ＜ 0.05).⑥ TcPO2 in the Hongzhongxiao pretreatment group was significantly higher than that in the model group on the 7th day after treatment [mmHg (1 mmHg =0.133 kPa):63.33 ± 9.77 vs.39.51 ± 8.42],and the Hongzhongxiao treatment group (44.25 ± 6.41) was significantly lower than that of the Hongzhongxiao pretreatment group,and the Hongzhongxiao treatment group was significantly higher than that of the model group (59.50 ± 7.34 vs.49.52 ± 10.17) on the 14th day after drug application,and the western medicine control group was significantly lower than that of the model group (37.71 ± 5.63 vs.54.33 ± 7.74),the Hongzhongxiao pretreatment group and Hongzhongxiao treatment group were significantly higher than those of the western medicine control group,the difference being statistically significant (all P ＜ 0.05).Conclusions The Hongzhongxiao tincture applied on top and circumferentially around the periphery of the abscess can reduce the local inflammatory response,improve the body weight and mental state,increase the blood supply around wound periphery for anti-infection and anti-inflammation in order to promote the formation of defending field of nursing.Although the early application of Hongzhongxiao tincture cannot reduce the local infectious symptoms and kill the Staphylococcus aureus,it can make skin abscess localization as soon as possible and shorten the wound healing time.

Objective To introduce the method of using hollow pull screw insertion for the suprapubic fracture with 3D printing navigation template and to evaluate its clinical effect.Methods From March 2016 to August 2017,eighteen cases of suprapubic ramus fractures treated with hollow lag screw fixation in the Department of Orthopedics of Yanan University Affiliated Hospital were retrospectively collected was collected.Before operation,the thin slice CT scan of pelvis was used to get raw data,and the mimics17.0 software was used to reconstruction the model,to design and make the personalized navigation template assisting the suprapubic fractures surgery.The navigation template was printed out pre-operatively,and the nail was inserted via the assisted by the template intra-operatively.After the operation,the fracture reduction was evaluated by Matta imaging scores and the pelvis function was evaluated by Majeed scores.Results All the operations were successfully completed.The Matta scores were excellent in 11 cases,good in 6 cases,and fair in 1 case.The Majeed scores were excellent in 13 cases,good in 3 cases,and fair in 2 cases.Conclusion 3D Printing navigation template assisted the placement of the hollow screw on the suprapubic fracture could provide personalized treatment,reduce the difficulty of operation and satisfy the clinical effect.

Objective To compare the clinical effects of G-arm X-ray machine and C-arm X-ray machine in percutaneous kyphoplasty (PKP) for osteoporotic vertebral compression fracture (OVCF) of thoracolumbar spine.Methods The clinical data of ninety-five patients with thoracolumbar OVCF treated with PKP from May 2016 to August 2017 in Yanan University Affiliated Hospital were retrospectively analyzed.They were divided into two groups according to the different guiding fluoroscopy methods used during the operation.Forty-six cases in G arm group completed PKP under the guidance of G arm X-ray machine,Forty-nine cases in C arm group completed PKP under the guidance of C arm X-ray machine.The operation time,fluoroscopy times,cement leakage cases,the height of injured vertebral leading edge,Cobb angle of kyphosis,visual analogue score and Oswestry dysfunction index were recorded before and after operation,and the related indexes were analyzed and compared.Results Two groups of patients were successfully completed surgery,no complications of vascular and nerve injury.The operation time and fluoroscopy times in G arm group were less than those in C arm group (operation time:(29.6±4.5) min vs.(42.5±5.3) min,and fluoroscopy times in G arm group:(9.1±2.0) vs.(16.9±3.2));the difference was statistically significant (t =-12.747,12.870,P＜ 0.01).Postoperative height of injured vertebral leading edge(G arm group (22.3±5.3) mm),C arm group (22.4±5.1) mm),kyphosis Cobb angle (G arm group (9.2±3.8)°,C arm group (9.3±3.7) o),visual analogue score (G arm group (2.1±0.7)points,C arm group (2.2±0.9) points),Oswestry dysfunction index (G arm group (21.3±8.5) points,C arm group(21.5 ± 8.3)points),compared with preoperative(the hight of injured vertebral leading edge of G arm group (18.2 ±5.3) mm,C arm group (18.4±5.2) mm,Cobb angle of injured vertebra G arm group (15.7±4.4) °,C arm group (15.9±4.3) °,visual analogue score of G arm group (7.8± 1.2) points,C arm group (7.7± 1.1) points,Oswestry dysfunction index score of G arm group(41.2±8.3)points,C arm group (41.5±8.2) points),the difference was statistically significant (t =-3.709,-3.844,-7.582,-8.144,27.827,27.088,11.360,11.999,P＜0.01),but there was no significant difference between the two groups (P ＞0.05).Conclusion Using G-arm X-ray machine to assist PKP in the treatment of thoracolumbar spine OVCF can effectively shorten the operation time,reduce the intraoperative fluoroscopy time,and the clinical effect is satisfactory.

Objective:To investigate the effect and mechanism of Acyl-CoA: lysocardiolipin acyltransferase 1 (ALCAT1) on hepatocyte steatosis and oxidative stress in fatty liver cell model.Methods:A fatty liver cell model was established and induced by free fatty acids (FFA). The expression of ALCAT1 in fatty liver cell model was detected by quantitative real-time polymerase chain reaction (qRT-PCR) and Western blotting. The empty siRNA plasmid and ALCAT1 siRNA plasmid were constructed. For the fatty liver cell model group, human normal hepatocytes (L-02 cells) were transfected with empty siRNA plasmid for 24 hours, and then cultured with FFA for 24 hours. For the ALCAT1 interfering group, L-02 cells were transfected with ALCAT1 siRNA plasmid for 24 hours, and then cultured with FFA for 24 hours. And L-02 cells cultured in common medium were used as as blank control group. Lipid droplet deposition and mitochondrial morphology were observed under transmission electron microscopy. The expression levels of autophagy-associated proteins (microtubule-associated protein 1 light chain 3 (LC3)-Ⅱ and Beclin1) and key proteins of autophagy signal pathway (mammalian target of rapamycin (mTOR) and serine/threonine kinase (AKT)) were measured by Western blotting. The expression levels of oxidative stress products (malondialdehyde, 4-hydroxynonenal (4-HNE) and reactive oxygen species (ROS)) and inflammatory factors (interleukin-6(IL-6) and tumor necrosis factor (TNF)-α) were detected by enzyme-linked immunosorbent assay (ELISA) kits. Independent sample t test was used for statistical analysis. Results:The mRNA and protein expression levels of ALCAT1 of the fatty liver cell model group were both higher than that of negative control group (9.26±0.83 vs. 1.02±0.12, 0.35±0.02 vs. 0.17±0.01), and the differences were statistically significant ( t=9.82 and 6.83, both P<0.05). The results of electron microscopy indicated that the deposition of lipid droplets of the fatty liver cell model group and ALCAT1 interfering group were both higher than that of blank control group (17.67±3.52 and 7.67±0.33 vs. 4.33±0.33), the quantity of lipid droplets deposition of ALCAT1 interfering group was lower than that of fatty liver cell model group (7.67±0.33 vs. 17.67±3.52), and the differences were statistically significant ( t=3.76, 7.07 and 2.82, all P<0.05). The degree of mitochondria swelling of fatty liver cell model group was higher than that of blank control group and the degree of mitochondria swelling of ALCAT1 interfering group was lower than that of fatty liver cell model group. The results of Western blotting showed that the expression level of LC3-Ⅱof the fatty liver cell model group was higher than that of the blank control group (0.43±0.01 vs. 0.28±0.02), and the difference was statistically significant ( t=7.32, P<0.05). However there was no significant difference in the expression level of Beclin1 between fatty live cell model group and blank control group (0.93±0.05 vs. 0.98±0.05, P>0.05). The expression levels of LC3-Ⅱ and Beclin1 of the ALCAT1 interfering group were both higher than those of the fatty liver cell model group and blank control group (0.95±0.04 vs. 0.42±0.01 and 0.28±0.02, 2.07±0.06 vs. 0.93±0.05 and 0.98±0.05), and the differences were statistically significant ( t=13.30, 15.63, 14.05 and 13.02, all P<0.05). The expression levels of mTOR of the fatty liver cell model group and ALCAT1 interfering group were both lower than that of the blank control group (1.44±0.02 and 0.74±0.01 vs. 1.93±0.10), the expression level of mTOR of the ALCAT1 interfering group was lower than that of the fatty liver cell model group (0.74±0.01 vs. 1.44±0.02), and the differences were statistically significant ( t=4.83, 12.04 and 32.14, all P<0.05). The expression levels of phosphorylated AKT of the fatty liver cell model group and ALCAT1 interfering group were both lower than that of the blank control group (0.14±0.01 and 0.07±0.01 vs. 0.28±0.01), while the expression level of phosphorylated AKT of the ALCAT1 interfering group was lower than that of the fatty liver cell model group (0.07±0.01 vs. 0.14±0.01), and the differences were statistically significant ( t=8.59, 14.10 and 5.96, all P<0.05). The results of ELISA indicated that the expression levels of ROS, malondialdehyde, 4-HNE, IL-6 and TNF-α of the fatty liver cell model group and the ALCAT1 interfering group were all higher than those of the blank control group ((11.44±0.30) and (5.84±0.36) g/L vs. (1.72±0.38) g/L; (19.94±2.47) and (11.95±1.55) μmol/L vs. (1.47±0.18) μmol/L; (5.00±0.43) and (2.99±0.37) ng/L vs. (1.46±0.23) ng/L; (203.40±5.16) and (92.07±11.98) ng/L vs. (23.32±3.33) ng/L; (123.70±8.38) and (67.42±4.88) ng/L vs. (47.18±4.57) ng/L), and the differences were all statistically significant ( t=19.86, 7.86, 7.45, 6.74, 7.22, 3.49, 29.34, 5.53, 8.02 and 3.03, all P<0.05). While the expression levels of ROS, 4-HNE, IL-6 and TNF-α of the ALCAT1 interfering group were all lower than those of the fatty liver cell model group ((5.84±0.36) g/L vs. (11.44±0.30) g/L, (2.99±0.37) ng/L vs. (5.00±0.43) ng/L, (92.07±11.98) ng/L vs. (203.40±5.16) ng/L and (67.42±4.88) ng/L vs. (123.70±8.38) ng/L), and all the differences were statistically significant ( t=11.99, 3.51, 8.54 and 5.81, all P<0.05). There was no statistically significant difference in the expression of malondialdehyde between ALCAT1 interfering group and fatty liver cell model group ((11.95±1.55) μmol/L vs. (19.94±2.47) μmol/L, P>0.05). Conclusions:The expression of ALCAT1 is up-regulated in fatty liver cell model. Knockdown of ALCAT1 can inhibit the expression of mTOR pathway proteins, activate autophagy, alleviate hepatocyte steatosis, oxidative stress and inflammatory response.

Objective: To explore the effects of teach-back on health education for patients′ gestational diabetes mellitus. Methods: A total of 90 pregnant women with gestational diabetes mellitus from obstetrics outpatient were recruited and randomly assigned to either case or control group. The case and control groups received the same treatment and health education, the only difference was teach-back method in the case group,to compare blood glucose, compliance and outcome of pregnancy. Results: After the intervention, fasting blood glucose (FPG), 2h postprandial blood glucose (2h-ppg) and glycosylated hemoglobin (HbA1c) in the case group were respectively (4.75±0.30) mmol/L, (5.69±0.74) mmol/L, (5.15±0.28)%, control group were respectively (5.01±0.30) mmol/L, (6.15±0.70) mmol/L, (5.68±0.33)%. The difference was statistically between the two groups (t=-4.631、-3.019、-8.020, P<0.05 or 0.01). The treatment compliance rate, gestational hypertension, hyperhydramnios, cesarean section and macrosomia rate in the case group were respectively 93.2% (41/44), 6.8% (3/44), 11.4% (5/44), 13.6% (6/44), 2.3% (1/44), control group were respectively 81.4% (35/43), 23.3% (10/43), 30.2% (13/43), 32.6% (14/43), 14.0% (6/43), the difference was statistically between the two groups (U=570.000, χ²=4.398-5.775, P<0.01 or 0.05). Conclusion Teach-back method is methodis a good health method and to reduce glucose level and improve Compliance of therapy. It is worthy of promotion.

The bionic optic nerve can mimic human visual physiology and is a future treatment for visual disorders. Photosynaptic devices could respond to light stimuli and mimic normal optic nerve function. By modifying (Poly(3,4-ethylenedioxythio-phene):poly (styrenesulfonate)) active layers with all-inorganic perovskite quantum dots, with an aqueous solution as the dielectric layer in this paper, we developed a photosynaptic device based on an organic electrochemical transistor (OECT). The optical switching response time of OECT was 3.7 s. To improve the optical response of the device, a 365 nm, 300 mW·cm ^-2 UV light source was used. Basic synaptic behaviors such as postsynaptic currents (0.225 mA) at a light pulse duration of 4 s and double pulse facilitation at a light pulse duration of 1 s and pulse interval of 1 s were simulated. By changing the way light stimulates, for example, by adjusting the intensity of the light pulses from 180 to 540 mW·cm ^-2, the duration from 1 to 20 s, and the number of light pulses from 1 to 20, the postsynaptic currents were increased by 0.350 mA, 0.420 mA, and 0.466 mA, respectively. As such, we realized the effective shift from short-term synaptic plasticity (100 s recovery of initial value) to long-term synaptic plasticity (84.3% of 250 s decay maximum). This optical synapse has a high potential for simulating the human optic nerve.
Humans ; Quantum Dots ; Bionics ; Oxides ; Optic Nerve

Objective: To understand the consistency of ALK Ventana-D5F3 immunohistochemistry (IHC) interpretation in Chinese lung adenocarcinoma among histopathologists from different hospitals, and to recommend solution for the problems found during the interpretation of ALK IHC in real world, with the aim of the precise selection of patients who can benefit from ALK targeted therapy. Methods: This was a multicenter and retrospective study. A total of 109 lung adenocarcinoma cases with ALK Ventana-D5F3 IHC staining were collected from 31 lung cancer centers in RATICAL research group from January to June in 2018. All cases were scanned into digital imaging with Ventana iSCANcoreo Digital Slide Scanning System and scored by 31 histopathologists from different centers according to ALK binary (positive or negative) interpretation based on its manufacturer′s protocol. The cases with high inconsistency rate were further analyzed using FISH/RT-PCR/NGS. Results: There were 49 ALK positive cases and 60 ALK negative cases, confirmed by re-evaluation by the specialist panel. Two cases (No. 2302 and No.2701) scored as positive by local hospitals were rescored as negative, and were confirmed to be negative by RT-PCR/FISH/NGS. The false interpretation rate of these two cases was 58.1% (18/31) and 48.4% (15/31), respectively. Six out of 31 (19.4%) pathologists got 100% accuracy. The minimum consistency between every two pathologists was 75.8%.At least one pathologist gave negative judgement (false negative) or positive judgement (false positive) in the 49 positive or 60 negative cases, accounted for 26.5% (13/49), 41.7% (25/60), respectively, with at least one uncertainty interpretation accounted for 31.2% (34/109). Conclusion There are certain heterogeneities and misclassifications in the real world interpretation of ALK-D5F3 IHC test, which need to be guided by the oncoming expert consensus based on the real world data.