Design and validation of a surgical guide for the retrieval of foreign body instruments in jaw / 解剖学报

Objective To design and validate a novel surgical guide for retrieval of foreign body in jaw. Methods Firstly, a surgical guide based on cone beam computed tomography and trephine technique was designed to remove broken dental instrument fragments. Its feasibility and accuracy were assessed by removing broken dental instrument in goat mandible, and then it was successfully applied in clinical cases. The linear and angular discrepancies between actual and planned columnar bone with imaginary fragment was analyzed. The euclidean distance was measured at the hex and apex of the columnar bone and the angle of axis deviation was also calculated. We obtained seven parameters (cdh, cda, hdh, hda, vdh, vda, and ad) to describe deviations. Results Mean central deviation at the hex and apex was (0.51 ± 0.14) mm and (0.62 ± 0.19) mm, respectively. Accompanying mean values were as follow: horizontal deviation at the hex was (0.48 ± 0.16) mm, horizontal deviation at the apex was (0.52 ± 0.22) mm, vertical deviation at the hex was (0.17 ± 0.09) mm, vertical deviation at the apex was (0.29 ± 0.13) mm, and angular deviation of (5.38 ± 3.43) degrees. In a clinical case, the guide successfully located and removed the fracture file. Conclusion This study reveals that this kind novel surgical guide could aid to locate and remove the foreign body in jaw.

Effects of dagliflozin on atrial tachyarrhythmia in rats with pulmonary arterial hypertension related right heart failure and its mechanisms / 中国药理学通报

Aim To investigate the effects of dagliflozin (DAPA) on atrial tachyarrhythmia (AT) in rats with right heart failure (RHF) due to pulmonary arterial hypertension (PAH) and the underlying mechanisms. Methods Sixty male SD rats were randomly divided into four groups: control group (CTL group), model group (MCT group), MCT + low-dose DAPA intervention group (MCT + LD group) and MCT + high-dose DAPA intervention group (MCT + HD group). After 35 days of continuous intervention, the model and cardiac function evaluation, atrial structural remodelling assessment, inflammatory factor detection, and in vivo cardiac electrophysiology experiments were completed. Results DAPA reduced menn pulmonaryarterial pressure (mPAP) and menn right ventricular pressure (mRVP) in the model rats (P <0.05), attenuated the inflammatory response (P < 0.05), reduced right atrial fibrosis (P <0.05), reduced AT induction rate (P < 0.05) and mean atrial tachyarrhythmia duration (MATD) (P < 0.05), the extent of which was more pronounced in the high-dose DAPA intervention group. Conclusions DAPA can reduce AT susceptibility in PAH-induced RHF rats, and the mechanisms may be related to the inhibition of systemic inflammation and anti-atrial fibrosis by DAPA.

Effects of Ganbao capsules on intestinal mucosal barrier and gut microbiota in rats with non-alcoholic fatty liver disease / 中国药房

OBJECTIVE To study the effects of Ganbao capsules on intestinal mucosal barrier and gut microbiota in rats with non-alcoholic fatty liver disease （NAFLD）， and to explore its mechanism of prevention and treatment of NAFLD. METHODS Eight of 26 SD rats were randomly selected as blank group and fed with ordinary diet， and the remaining 18 rats were fed with high diet to establish NAFLD model （2 for modeling inspection）； after successful modeling， they were divided into model group and Ganbao group， with 8 rats in each group. Ganbao group were given Ganbao capsules solution （1 440 mg/kg） intragastrically， and the blank group and model group were given the constant volume of distilled water intragastrically， once a day， for consecutive 5 weeks. The contents of alanine aminotransferase （ALT）， aspartate aminotransferase （AST） and triglyceride （TG） in serum of rats were detected by automatic analyzer； the contents of lipopolysaccharide， tumor necrosis factor-α （TNF-α）， interleukin-6 （IL-6） and IL-1β in serum of rats were detected by enzyme-linked immunosorbent assay. The pathological morphology of liver and ileum tissues were observed by HE staining， the expressions of Occludin and zonula occludens-1 （ZO-1） were detected by immunohistochemistry method， and the intestinal flora were detected by 16S ribosomal RNA gene sequencing technology. RESULTS Compared with the model group， the serum contents of ALT， AST， TG， lipopolysaccharide， TNF-α， IL-6 and IL-1β in Ganbao group were decreased significantly （P＜0.01）， the pathological changes of liver and ileum tissues were improved 262 significantly， and the expressions of Occludin and ZO-1 were increased significantly （P＜0.01）. Intestinal microbiotaanalysis revealed that compared with the model group， Ganbao capsules could recover the abundance and diversity of the gut E-mail：hdf8833@126.com microbiota in rats. At the phylum level， Ganbao capsules could significantly increase the relative abundance of Bacteroidetes， and significantly reduce the relative abundance of Firmicutes and the ratio of Firmicutes to Bacteroidetes （P＜0.01）. At the genus level， Ganbao capsules could significantly increase the relative abundance of Lactobacillus， Blautia， Bacteroides and Akkermansia， and significantly reduce the relative abundance of Prevotella， Turicibacter， Weissella， SMB53 and Desulfovibrio （P＜0.05 or P＜0.01）. There were different species among the gut microbiota of rats in each group. CONCLUSIONS Ganbao capsules may improve NAFLD by protecting intestinal mucosal barrier function and regulating gut probiotics/harmful bacteria structure.

Clinical features and treatment of calcineurin inhibitor-induced pain syndrome in renal transplant recipients / 药学实践杂志

Objective To understand the clinical features and therapeutic methods for calcineurin inhibitor-induced pain syndrome (CIPS) in kidney transplant recipients. Methods The related articles or abstracts from January 1991 to December 2020 were obtained by searching PubMed, Google Scholar, CNKI, Wanfang and VIP databases. The reviews, duplicate literatures and the articles involved in non-kidney transplant recipients were excluded. 11 full papers were included with 15 case reports. Results The average age of patients at the time of diagnosis of CIPS was (44.6±8.31) years, and the 53.3% of the patients was male. The average appearance time of CIPS was (2.42±3.07) months after kidney transplantation. CIPS mainly affected bilateral hands, elbows, wrists, knees, ankles, feet and back. The patients had normal or elevated trough concentrations of calcineurin inhibitors (CNIs) when CIPS occurred. Some patients had elevated alkaline phosphatase, parathyroid hormone, blood calcium, C-reactive protein levels, and abnormal phosphorus levels, while rheumatoid factor and uric acid levels were normal. CIPS symptoms in most patients disappeared with dose reduction of CNIs, change to different class of CNIs, pamidronate IV injection, pregabalin, calcium channel antagonists, etc. The average recovery time was (4.43±3.31) months. Conclusion The most effective treatment for CIPS is to reduce the dose of CNIs and replace immunosuppressants. Other treatments include GABA analogs, intravenous pamidronate, calcium channel blockers and conservative therapy.

Risk factors of non-dialysis diabetic nephropathy patients complicated with hyperuricemia and the protective effect of febuxostat / 中国医师进修杂志

Objective:To investigate the risk factors of hyperuricemia (HUA) in non-dialysis diabetic nephropathy (DN) patients, and to observe the protective effect of febuxostat on kidney.Methods:The clinical data of 317 DN patients without dialysis in Affiliated Hospital of Hebei University from January 2018 to February 2021 were analyzed retrospectively. Among them, HUA occurred in 148 cases (HUA group), the incidence of HUA was 46.69%, and no HUA occurred in 169 cases (non-HUA group). In HUA group, 74 patients were treated with febuxostat (observation subgroup), and 74 patients with allopurinol (control subgroup). Multivariate Logistic regression analysis was used to analyze the independent risk factors of HUA in patients with DN; a nomogram model for predicting the occurrence of HUA in patients with DN was established by R 4.0.2 software, the predictive ability of the nomogram model was evaluated by receiver operating characteristic (ROC) curve, and the calibration and validity of the prediction model were verified by correction curve and deviation correction C-index.Results:There were no significant difference in gender composition and the incidence of diabetic retinopathy, diabetic peripheral neuropathy, diabetic foot between the two groups ( P>0.05); the age, body mass index (BMI), DN course>3 years rate, smoking rate, drinking rate, family history of diabetes rate, seafood consumption more than 2 times a week rate, and the incidences of hypertension, hyperlipidemia, coronary heart disease, nephrolithiasis, stroke in HUA group were significantly higher than those in non-HUA group: (57.96 ± 5.25) years old vs. (56.14 ± 4.71) years old, (24.18 ± 3.95) kg/m 2 vs. (23.06 ± 3.12) kg/m 2, 78.38% (116/148) vs. 30.77% (52/169), 84.46% (125/148) vs. 28.99% (49/169), 93.92% (139/148) vs. 40.24% (68/169), 62.84% (93/148) vs. 50.30% (85/169), 46.62% (69/148) vs. 15.38% (26/169), 41.89% (62/148) vs. 20.71% (35/169), 73.65% (109/148) vs. 45.56% (77/169), 39.86% (59/148) vs. 18.34% (31/169), 45.95% (68/148) vs. 26.04% (44/169) and 50.68% (75/148) vs. 8.28% (14/169), and there were statistical differences ( P<0.01 or <0.05). Multivariate Logistic regression analysis result showed that age, BMI, course of DN, smoking, drinking, hypertension, hyperlipidemia, coronary heart disease, nephrolithiasis, stroke and weekly seafood consumption were independent risk factors for HUA in patients with DN ( OR = 1.053, 1.062, 3.192, 3.638, 5.397, 1.371, 1.690, 1.404, 1.392, 2.295 and 2.581; 95% CI 1.028 to 1.078, 1.031 to 1.093, 2.517 to 3.867, 2.754 to 4.522, 4.169 to 6.625, 1.253 to 1.489, 1.482 to 1.898, 1.237 to 1.571, 1.284 to 1.501, 1.730 to 2.860 and 1.862 to 3.300; P<0.01), but the family history of diabetes was not related to the occurrence of HUA in DN patients ( P>0.05). A nomogram model was established based on age, BMI, course of DN, smoking, drinking, hypertension, hyperlipidemia, coronary heart disease, nephrolithiasis, stroke and weekly seafood consumption as predictors of HUA in patients with DN; the results of correction curve analysis show that the actual curve was consistent with the ideal curve, and the prediction of HUA in patients with DN by the nomogram model was consistent with the actual situation (C-index was 0.931, 95% CI 0.895 to 0.967). The results of ROC curve analysis show that the nomogram model had a strong ability to predict the occurrence of HUA in patients with DN (the area under the curve was 0.855, 95% CI 0.842 to 0.868). The total effective rate in observation subgroup was significantly higher than that in control subgroup: 93.24% (69/74) vs. 70.27% (52/74), the levels of uric acid, creatinine and urea nitrogen after treatment were significantly lower than those in control subgroup: (314 ± 65) μmol/L vs. (392 ± 75) μmol/L, (227 ± 46) μmol/L vs. (271 ± 53) μmol/L and (13.52 ± 2.47) mmol/L vs. (16.80 ± 3.05) mmol/L, and there were statistical differences ( P<0.01). Conclusions:The age, BMI, course of DN, smoking, drinking, hypertension, hyperlipidemia, coronary heart disease, nephrolithiasis, stroke and weekly seafood consumption are independent risk factors for HUA in patients with DN. Febuxostat can effectively protect the renal function of patients with DN complicated with HUA.

Research advances of music therapy and its application in the field of burn treatment / 中华烧伤杂志

Different from other trauma, the scar and pigmentation formed after healing of burn wound not only hinder beauty but also easily lead to a series of sequential psychological problems, such as depression and anxiety. Music therapy, as a supplementary treatment, is widely used in many fields including medical and health care and psychological regulation. However, affected by factors such as medical resources, the awareness and acceptance of music therapy among burn treatment workers in China are still low. Based on the clinical characteristics of burns, this paper matches the applicability of music therapy with it, summarizes the supplementary application of music therapy in the field of burn treatment, expounds this natural science with both science and aesthetics, and puts forward feasible suggestions for its future development.

Fludarabine and intravenous busulfan conditioning with post-transplantation cyclophosphamide for allogeneic peripheral stem cell transplantation for adult patients with lymphoid malignancies: a prospective single-arm phase II study / 医学前沿

Post-transplantation cyclophosphamide (PT-Cy) alone or in combination with other immunosuppressive drugs has emerged as a promising strategy in the setting of allogeneic hematopoietic stem cell transplantation. Improved survival rate was reported in lymphoid malignancies following PT-Cy strategy compared with myeloid disease in non-myeloablative bone marrow transplant setting. Thus, we aimed to evaluate the safety and efficacy of PT-Cy combined with cyclosporine as graft-versus-host disease (GVHD) prophylaxis after myeloablative conditioning and T cell-replete peripheral stem cell transplantation in lymphoid malignancies. This single-arm phase II clinical trial (NCT01435447) involving 31 adult patients was conducted from January 2013 to June 2018. The donor-type neutrophil engraftment rate was 100%, and the overall incidence of grade II to IV and grade III to IV acute GVHD was 39% and 24%, respectively. The cumulative incidence rates of chronic GVHD (35%), including moderate to severe forms (10%), were reduced compared with those of the historical group (P = 0.03 and P = 0.04, respectively). With a median follow-up of 18 months, the estimated 2-year overall and event-free survival was 64.8% (95% confidence interval: 47.8%-86.7%) and 58.4% (95% CI: 41.9%-81.7%), respectively. The 2-year cumulative incidence rate of relapse was 19.5% (95% CI: 9.0%-35.8%), whereas the non-relapse mortality rate was 21.8% (95% CI: 11.3%-38.1%). These results demonstrated the feasibility of PT-Cy as GVHD prophylaxis in this clinical setting. This strategy could significantly reduce the incidence of chronic GVHD and its moderate to severe forms but not of acute GVHD and results in similar survival outcomes compared with the historical group. A prospective study with additional patients is warranted to confirm the role of PT-Cy in lymphoid malignancy.

Intra-operative mapping and language protection in glioma / 中华医学杂志(英文版)

The demand for acquiring different languages has increased with increasing globalization. However, knowledge of the modification of the new language in the neural language network remains insufficient. Although many details of language function have been detected based on the awake intra-operative mapping results, the language neural network of the bilingual or multilingual remains unclear, which raises difficulties in clinical practice to preserve patients' full language ability in neurosurgery. In this review, we present a summary of the current findings regarding the structure of the language network and its evolution as the number of acquired languages increased in glioma patients. We then discuss a new insight into the awake intra-operative mapping protocol to reduce surgical risks during the preservation of language function in multilingual patients with glioma.

Effects of Tai Chi Exercise Program on Cognitive Function among Older Adults at Risk for Dementia Living in Rural Areas / 재활간호학회지

Purpose@#This study aimed to examine the effects of the Tai Chi exercise program on cognitive function among older adults at risk of dementia living in rural areas. @*Methods@#A non-equivalent control group with a pretest-posttest design was used. Forty-four subjects at risk of dementia aged over 75 were recruited from the dementia care center in O county. The experimental group participated in the Tai Chi exercise program twice a week for one-hour session for 12 weeks, while the control group received the routine management from the dementia care center. Data were analyzed using the SPSS version 24.0 program with descriptive statistics, x2 test, and Mann-Whitney test, t-test and ANCOVA. @*Results@#The significant improvement was found in cognitive function (F=4.72, p=.036) and attention (F=4.44, p=.041) for the Tai Chi exercise group compared to the control group. No adverse events have been notified during the intervention. @*Conclusion@#The study findings suggest that Tai Chi exercise program is safely and effectively applied to older adults at risk of dementia, revealing the potential benefits to improve cognitive function in this population. Further studies are warranted to explore the relationship between physical exercise and cognitive function in older adults with various types of cognitive impairment.

The surgical treatment of obstructed total anomalous pulmonary venous connection / 中华胸心血管外科杂志

Objective:To analyze the results of surgical treatment in patients with obstructed total anomalous pulmonary venous connection.Methods:Inclusion criteria: Patients with obstructed total anomalous pulmonary venous connection, who underwent surgical treatment in our hospital between December 2012 to January 2018. Exclusion criteria: (1)With complicated malformations, such as single ventricle and visceral inversion; (2)The maximum flow velocity of pulmonary vein was less than 1.2 m/s; (3)Had not underwent surgery. 57 patients[33 males and 24 females, age: (3.2±1.7) months, weight: (5.0±0.9) kg] were enrolled. There were four anatomical subtypes: supracardiac type(n=30), cardiac type(n=16), infracardiac type(n=5), and mixed type(n=6). Patients were followed up after operation.Results:During the follow-up of(52±21) months, 8 cases(14.0%, 8/57) died postoperatively. Postoperative pulmonary vein stenosis was present in 7 patients(12.3%, 7/57). The mortality of patients with postoperative pulmonary vein stenosis(57.1%, 4/7) was significantly higher than that of patients without postoperative pulmonary vein stenosis(8.0%, 4/50).Conclusion:The results of surgical treatment in patients with obstructed total anomalous pulmonary venous connection were encouraging, however, recurrent pulmonary venous stenosis still should be taken care.

Correlation between serum vitamin D level and dyslipidaemias in medical staff / 预防医学

Objective To explore the relationship between low serum vitamin D levels and dyslipidaemias in medical staff. Methods A total of 754 medical staff that get physical examination in our hospital were enrolled in this study. Venous blood samples were obtained, then serum 25 (OH) D and lipids level were measured. Then the blood biochemical indexes of medical staff with different levels of vitamin D were compared and the correlation between 25 (OH) D and blood lipid related biochemical indexes were analyzed. Results The average serum 25 (OH) D in the 754 subjects was (15.94±7.41) ng/mL. Patients in severe vitamin D deficient group were 156 (20.69％), and in vitamin D deficient group were 418 (57.89％), as well as in vitamin D inadequate group were 147 (19.50％) and in vitamin D adequate group were 33 (4.38％) . After adjustment of age and gender, a significantly negative correlation was found between 25 (OH) D and BMI (r=-0.090, P=0.013), TC (r=-0.309, P<0.001), TG (r=-0.079, P=0.030) and LDL-C (r=-0.143, P<0.001) . Further multivariate linear regression analysis showed that TC was negatively correlated with vitamin D (β'=-0.298, P <0.001) . Conclusion Vitamin D deficiency is very common among medical staff and we should pay attention to this condition. Vitamin D deficiency is related to the increasing of serum TC.

The Effect of Astragalus Polysaccharide on the Expressions of Nephrin and Desmin in High Sugar Stimulation Mice Podocytes / 昆明医科大学学报

Objective To study the effect of Astragalus polysaccharide on the expressions of Nephrin and Desmin in high sugar stimulation mice podocytes. Methods Test one: the cultured mouse podocytes were divided into 5 groups: astragalus polysaccharide group [D－ glucose 30 mmol/L+astragalus polysaccharide (0.0 g/L, 0.1 g/L,0.2 g/L,0.4 g/L and 0.8 g/L) ]. Test two: In test one, we chose the concentration of astragalus polysaccharide which most affected both expression of Nephrin and Desmin in podocytes and named it as astragalus polysaccharide 0. X g/L. The cultured mouse podocytes were divided into 7 groups: astragalus polysaccharide group (D－ glucose 30 mmol/L+astragalus polysaccharide 0.X g/L) had been cultured for 0 h, 3 h, 6 h, 12 h,24 h,48 h and 72 h, respectively. Test three: Basted on test two, we chose the time which most affected both expression of Nephrin and Desmin in podocytes and named it as Yh. The cultured mouse podocytes were divided into 4 groups: the control group,mannitol hypertonic glucose control group, high sugar group,and astragalus polysaccharide group (high sugar group+ astragalus polysaccharide 0.X g/L) . Each group had been cultured for Yh. Nephrin and Desmin of each subgroup was detected by flow cytometry podocytes and real－time PCR. Results With the intervention of polysaccharide, Nephrin in podocyte cell surface gradually increased, Desmin gradually reduced in a concentration－dependent manner (P＜0.05) . With the intervention of astragalus polysaccharide, Nephrin gradually increase and Desmin expression gradually decreased in a concentration－dependent manner (P＜0.05) . Compared to the control group and the high sugar group,Nephrin mRNA increased and Desmin mRNA decreased in 0.8g/L astragalus polysaccharide co－cultured for 72h (P＜0.05) . Conclusion Astragalus polysaccharide intervention can increase Nephrin and reduce Desmin in podocytes, which are possible targets of Astragalus polysaccharide in treatment of DN proteinuria.

Effect of metformin on the prognosis of diabetic patients combined with gynecologic cancer: A Meta-analysis / 解放军医学杂志

Objective To systematically evaluate the effect of metformin on the prognosis of diabetic patients combined with gynecologic cancer.Methods The database including PubMed,Embase,CNKI and Wangfang,were electronically searched with no language restriction from their inception to March 2017 to collect the studies about the effect of metformin on the prognosis of diabetic patients combined with gynecologic cancer.The references in reviews were also searched.According to the inclusion and exclusion criteria,two reviewers screened the literatures independently,extracted data and assessed methodological quality by the Newcastle-Ottawa scale.The primary end points included overall survival (OS) and progress free survival (PFS).The outcome measures were the pooled hazard ratios (HR) and 9596 confidence intervals (9596 CI).I2 was performed in a heterogeneity assessment.Publication bias was evaluated by using Begg's funnel plot and Egger's test,and the sensitivity analysis was conducted to confirm robustness.The Meta-analysis was performed using STATA 12.0 software.Results Sixteen eligible retrospective cohort studies were included and the score of quality assessment were ranged from 6 to 9.The Meta-analysis showed that metformin could improve the OS of diabetic patients with gynecologic tumors (HR=0.71,95％CI 0.59-0.85,P=0.000).Subgroup analysis revealed that metformin could improve the OS of diabetic patients combined with endometrial cancer (HR=0.70,95％CI 0.54-0.89,P=0.004) and diabetic patients combined with cervical cancer (HR=0.95,95％CI 0.90-1.00,P=0.048).Meanwhile metformin improved the OS (HR=0.56,95％CI 0.38-0.83,P=0.004) and PFS (HR=0.45,95％CI 0.30-0.68,P=0.000) of diabetic patients with ovarian cancer after adjusting for confounders.Conclusions The use of metformin is positive for the prognosis of diabetic patients combined with gynecologic cancer.It may improve the OS of diabetic patients with endometrial cancer and diabetic patients with cervical cancer.In addition,it improves the OS and PFS of diabetic patients with ovarian cancer.

MIPPO and ORIF for the treatment of elderly proximal humerus fractures of type Neer II:a case control study / 中国骨伤

<p><b>OBJECTIVE</b>To compare the clinical efficacy of minimally invasive percutaneous plate osteosynthesis(MIPPO)and open reduction and internal fixation (ORIF) in treating senile NEER IIproximal humerus fractures.</p><p><b>METHODS</b>From March 2014 to March 2016, 46 elderly patients with Neer II proximal humerus fractures were retrospectively reviewed. Among them, 20 patients in MIPPO group included 9 males and 11 females with an average age of (70.4±4.4) years old; while 26 patients in ORIF group included 11 males and 15 females with an average age of (70.9±4.0) years old. The length of hospital stay, times of fluoroscopy, beginning time of function rehabilitation, healing time of fracture, Constant Murley score of the shoulder joint at 3, 6, 12 months after operation and complications were observed and compared.</p><p><b>RESULTS</b>All patients were followed up for 12 to 24 months with an average of 16.8±3.7. The healing time of fracture, beginning time of function rehabilitation in MIPPO group were(13.0±0.8) weeks, (3.0±0.9) days respectively and shorter than those in ORIF group which were (13.8±1.4) weeks and(6.8±1.3) days. The times of fluoroscopy in MIPPO group was 19.2±3.7 and more than that in ORIF group which was 12.1±3.4. At 3 and 6 months after operation, Constant Murley score in MIPPO group were 81.3±3.9, 86.6±5.4 and more than that in ORIF group which were 69.5±6.6, 80.5±6.7. There were no differences between two groups in the length of hospital stay, Constant Murley score at 12 months after operation and grading at the final follow-up. There was one fracture redisplacement in each group. And 1 case of axillary nerve injury in MIPPO group, 2 cases of delayed union in ORIF group. No incision infection, screw loosening or plate break was found.</p><p><b>CONCLUSIONS</b>MIPPO and ORIF are both effective in treating Neer II proximal humeral fractures. MIPPO technique has the advantages of faster recovery, earlier rehabilitative exercise and better shoulder function. The disadvantages are more exposure to radiationd and the possibility of axillary nerve injure.</p>

Analysis of Soluble Organic Species of Huolinguole Lignite byAtmospheric Pressure Photoionization-Mass Spectrometry / 分析化学

Huolinguole lignite was sequentially extracted with carbon disulfide, ethyl acetate, methanol and acetone.All of the extracts were analyzed using a time-of-flight mass spectrometry (TOF-MS) equipped with an atmospheric pressure photoionization (APPI) ion source.Toluene or 1,4-difluorobenzene was chosen as dopant for APPI.The results indicated that both dopants could well ionize compounds which could not be ionized by APPI without dopant.Toluene induced higher ionization efficiency than 1,4-difluorobenzene.Some compounds in the extracts were identified as dimers, which might be formed via molecular association.Heteroatoms were identified in all of the associated molecules.Molecular weight distributions under three APPI ionization modes were similar.Compounds with molecular weight from 200 to 500 Da occupied 60% of all the products and around 10% of the products had molecular weight over 500 Da.

Psychometric test of Home Care Demand Forecasting Scale for fracture patients before discharge / 中国实用护理杂志

Objective To test the reliability and validity of the home care demand forecasting scale for fracture patients when they were before discharge. Methods This study was descriptive study. Convenience sampling was used and 412 patients with fracture from 5 comprehensive hospitals in Yanbian Korean Autonomous Prefecture were selected. Finally, the number of valid questionnaires is 398 which were used for testing. Results Five factors and 32 items were eventually determined. The split-half reliability coefficient was 0.910, and split-half coefficient in each dimension was over 0.75; the content validity showed scale level content validity index(S-CVI) was 0.948, and the index in each item′s item level content validity index (I-CVI) was between 0.76 to 1.00. The result of factor analysis included 5 factors and the cumulative contribution of variance was 59.181%. The result of construct validity χ2/df=1.554, root mean square error approximation (RMSEA)=0.037, goodness-of-fit index (GFI)=0.920. The total of scale′s Cronbach coefficient was 0.948, Each dimension′s Cronbach coefficient was between 0.797-0.875. Conclusions The home care demand forecasting scale was proved to be reliable and valid. It can be used to assess the home-care needs of fracture patients before they were discharge.

Risk factors analysis on wound complications after closed calcaneal frature operation using lateral extensive L-shaped incision / 中国骨伤

<p><b>OBJECTIVE</b>To investigate the risk factors of wound complications after closed calcaneal fracture operation using a lateral extensive L-shaped incision and to explore the effective interventions to reduce the complications after incision.</p><p><b>METHODS</b>Retrospective analysis of clinical data of 285 patients(315 calcaneal fractures) who underwent open reduction and internal fixation by using the lateral extensive L-shaped incision from January 2011 to January 2015. Eighteen factors which might cause the complications of calcaneal incision were compared by univariate analysis, and multiple Logistic regression analysis was performed for factors with statistically significances.</p><p><b>RESULTS</b>Twenty-nine patients(30 calcaneus) had wound complications among all the 285 patients(315 calcaneus) after surgery, including 9 patients with incision redness, swelling, oozing or nonunion;16 patients with skin necrosis or incision rupture, 3 patients with soft tissue superficial infection, and 2 patients with osteomyelitis. Univariate analysis showed that fall height(=0.017), diabetes (=0.026), smoking(=0.001), and operative time(=0.003) were correlated with incision complications after surgery. Multivariate analysis showed that diabetes(=0.029), smoking(<0.001), and operative time(=0.018) were risk factors for incision complications after operation.</p><p><b>CONCLUSIONS</b>Preoperative smoking cessation, actively control of blood glucose and shortening the operation time by practicing can effectively reduce the incision complication after fracture surgery with the lateral extensive L-shaped incision.</p>

Surgical treatment of trigeminal neuralgia of the third division by nerve avulsion inside and outside the mandibular cannel / 实用口腔医学杂志

Objective:To study the effects of the surgical treatment of nerve avulsion inside and outside the mandibular cannel.Methods:34 patients with trigeminal neuralgia of the third division,received neurotomy and avulsion of inferior alveolar nerve in the mandibular cannel above the lingual or through the mental foramen,concurrently with the avulsion of buccal nerve.Patients were fol-lowed up for 2-4 years.Results:All the operations were successfully completed,The wounds were well-healed.All patients felt that pain disappeared in the area innervated by inferior alveolar nerve.During the 2-4 years of follow-up,no recurrence was found.Conclusion:Inferior alveolar nerve neurotomy and avulsion in the mandibular cannel is simple,safe and effective in the treatment of trigeminal neuralgia of the third division.

Distribution Characteristics of Spermophilus dauricus in Manchuria City in China in 2015 through '3S' Technology / 生物医学与环境科学（英文）

Plague is a virulent infectious disease in China. In this study, '3S' technology was used to perform spatial autocorrelation analysis and spatial interpolation analysis for Spermophilus dauricus (S. Dauricus, a species of ground squirrel) captured in Manchuria City in 2015. The results were visually inspected. During the two-month (May to July) plague surveillance in 2015, 198 S. dauricus individuals were captured in the study area in Manchuria City (48 monitoring areas) by using a day-by-day catching method. Spatial autocorrelation was conducted using the ArcGIS software, and the following significantly different results were obtained: Moran's I=0.228472, Z-score=2.889126, and P<0.05. Thus, a spatial aggregation was observed. In 2015, the distribution of S. dauricus diminished from west to east and from north to south of Manchuria. Geo Detector software was used to analyze the habitat factors affecting the spatial distribution of S. dauricus. This highly clustered species mainly exists in suburban communities, construction sites, and areas surrounding factories. In future studies, plague surveillances should be performed in areas around Manchuria and Zhalainuoer.

Effect of ethanol extracts from Polygonum multiflorum Thunb on expressions of signal pathway TLR4/TRIF/IRF-3 in LPS induced rats liver / 国际药学研究杂志

Objective To research the toxicity of ethanol extracts from Poylgonum multiflorum Thunb(PMT)induced by en?dotoxin of Gram-negative bacteria lipopolysaccharide(LPS)in rat liver,and then investigate the hepatotoxicity mechanisms of PMT on immune inflammatory signal pathway Toll-Like receptor 4(TLR4)-interferon regulated factor3(IRF-3). Methods SD rats were randomly assigned into normal control,LPS(4 mg/kg),acetaminophen APAP(625 mg/kg),PMT 6 g/kg(PMT-L),PMT 12 g/kg (PMT-H),LPS+APAP and LPS+PMT-L/-H groups. The 4 groups later were injected LPS 4 mg/kg by caudal vein,after 2 h,the corre?sponding drugs were administered once a day for 7 consecutive days,respectively. The changes of weight of rats were observed every day. The tissue morphology of liver tissue of rats on 2 h,14 h,5 d,8 d after administration were detected by hematoxylin-eosin stain? ing respectively. Real time quantitative PCR(RT-qPCR)method and Western blotting were used to detect the expression of TLR4, TRIF and IRF3 in the TLR4 signaling pathway in liver cells. Results Two hours after the rat tail vein injection of LPS,the liver tiny granulomas of rats could be observed in LPS-induced groups,and then,the liver injury of rats in LPS group was gradually recovered. Eight Days after LPS induction,the liver tissue structure of rats in LPS group was clear and complete,but in LPS+APAP group and LPS+PMT 6 or 12 g/kg groups,the focal necrosis of hepatocytes,with inflammatory cell infiltration could be observed. The results of RT-qPCR and Western blotting showed that in oral administration of PMT groups,the expression of TLR4,TRIF and IRF-3 mRNA and protein in the liver cells had no significant change compared with the normal control group. But in 4 groups induced with LPS,the expression of TLR4, TRIF and IRF-3 mRNA and protein in the liver cells were significantly higher than that of the normal control group and LPS group(P<0.05). Conclusion PMT can cause liver damage induced by LPS,the hepatotoxicity is related to the positive regulation of TLR4/IRF-3 signaling pathways,which is not related to the dosage of PMT. The results show that activating TLR4/IRF3 signaling pathway is one of the mechanisms of liver injury of PMT in rats induced by LPS.