Polyacrylamide resin was synthesized via surface-initiated atom transfer radical polymerization ( SI-ATRP) method. Acrylic amide ( AM) was grafted onto the surface of the chloromethyl polystyrene resin via SI-ATRP in the CuBr/2, 2'-bipyridine ( Bpy) system as catalyst at room temperature. The compositions of polyacrylamide resin were determined by means of elementary analysis, FT-IR analysis and scanning electron microscopy ( SEM) . The adsorption properties, the parameters of kinetics and the thermodynamics of the resin were evaluated in details, respectively. As the results, adsorption capacity of 2,4-dichlorophenoxyacetic acid (2,4-D) increased with the initial concentrations of solution increasing at room temperature, and its highest adsorption capacity was 111. 0 mg/g with solution concentration of 8 mmol/L. Adsorption isotherm at room temperature was determined and modeled with Langmuir and Freundlich equations. The thermodynamic equilibrium functions were calculated to be ΔG<0,ΔH=268. 2 kJ/mol, ΔS>0, hence, the adsorption was spontaneous, endothermic and entropy increasing. The kinetics fitted the pseudo-second-order well. The polyacrylamide-chloromethyl polystyrene (PAM-CMCPS) resin was used for the adsorption of 2,4-D in orange sample, and good results were obtained.

Objective To summary the experience of microsurgery of meningioma in skull base treatment. Methods To study the clinical data of 10 cases patients of meningioma in skull base who were subjected to microsurgery by using retrospective analysis. Among the 10 patients, there were 3 cases of meningioma of the olfactory groove. There were 2 cases of sphenoid ridge meningioma, meningioma in the middle cranial fossa, meningioma in the cerebellopontine angle respectively.There was 1 case of meningioma of velarium in temporal lobe. Results In 7 cases, the meningioma was completely removed. And in another 3 cases, the meningioma got subtotal resection. During and after the operation, there were no severe complications observed or death occurrence in all the 10 cases of meningioma patients. Two months post of operation,all patients got a significant amelioration in their symptoms. A total of 9 cases were followed up. There was 1 case of IIa type meningioma recurred. Conclusion To elevate the whole shearing rate of meningioma in skull base and reduce the mortality of it,it is most important for appropriate operative route selection and well mircosugical technique application.

Objective To investigate the relationship of single nucleotide polymorphism (SNP) on FTO gene rs9939609 with metabolism index and obesity in children. Methods One hundred and fifty-three children (age 7-11 year) were recruited in this study, 102 of them were obese and 51 of them were overweight. One hundred and sixty children with normal body weight were recruited as control. Height, weight and biochemical indicator of liver function were measured. PCR and direct sequence were applied to detect the polymorphism of rs9939609, and the frequency of the allele was calculated. Results TT or TA/AA genotype frequency on FTOgene rs9939609 was significantly different among overweight group, obesity group and normal con-trol group (χ2=23.01, P<0.001);TA/AA genotype frequency in overweight and obesity group was significant higher than that in the control group(P<0.014). The frequencies of T and A allele in overweight group, obesity group and control group was 96.25%and 3.75%, 85.29%and 14.71%, 85.78%and 14.22%respectively. There was significant difference of allelic frequency among overweight group, obesity group and control group (χ2=21.72, P<0.001). The frequency of A allele in overweight and obe-sity group was higher than that in control group (P'<0.014). Subjects with TA/AA allele had significantly higher BMI compared with subjects with TT allele. Conclusions rs9939609 of FTO gene is associated with obesity in children, and allele A on this spot may raise BMI and leads to overweight and obesity.

To date,the information technology develops rapidly and the dawn of digital era comes just around the cor-ner.Under these new situations,smart Party building management platforms stand as a new impetus,energizing the Party build-ing efforts with robust capabilities for data storage,analysis,automatic computation,and administration.These platforms provide comprehensive data support that enhances the precision and efficiency of Party building.This leads to an invigorated process of continuous innovation and high-quality development within the Party building.This article delves into the practical application of the current unit's smart party building management platform,examining the challenges encountered during its operation.It also posits several reflections and strategic responses aimed at elevating the scientific management standards of party building.

Rhamnogalacturonan Ⅱ(RG-Ⅱ)is one of the structural domains of pectin whose structure is highly conserved among species.The main chain of RG-Ⅱ consists of approximately nine galacturonic acids linked by α-1,4 glycosidic bonds,with six well-defined side chains replacing them(A-F).The structures of the disaccharide side chains C and D and the monosaccharide side chains E and F in RG-Ⅱ from different sources remain essentially the same.In contrast,the oligosaccharide side chains A and B showed slight variability.Structural characterization of RG-Ⅱ can be achieved by molecular weight,monosaccharide composition,and mass spectrometry.The polysaccharides containing RG-Ⅱ structural domains in traditional Chinese medicines(TCMs)have high medicinal value.Isolation of RG-Ⅱ can be achieved using endo-polygalacturonase(Endo-PG)and Penicillium oxalicum.A substantial number of RG-Ⅱ standards can be rapidly prepared from red wine for the development of new quantitative methods to realize the quality control of active polysaccharides from traditional Chinese medicines and to promote the research process of polysaccharides from traditional Chinese medicines.

Objective:To explore the effects of standardized enteral nutrition process in critically ill patients.Methods:We retrieved PubMed, EMBASE, MEDLINE, WanFang Data, China National Knowledge Infrastructure (CNKI) and China Biology Medicine (CBM) by computer to collect literatures on effects of standardized enteral nutrition process in critically ill patients from the establishment of database to May 31, 2019. RevMan 5.3 was used to statistical analysis.Results:Finally, 11 articles were included. Meta-analysis results showed that compared with conventional care, the standardized enteral nutrition process could increase the calorie compliance rate of critical ill patients on the seventh day [ OR=8.18, 95% CI (4.91, 11.45) , P<0.01], and reduce the incidence of feeding intolerance symptoms [ OR=0.36, 95% CI (0.23, 0.57) , P<0.01]. However, the standardized enteral nutrition process did not show obvious advantages in shortening mechanical ventilation, Intensive Care Unit (ICU) hospitalization time and reducing mortality, combined effects, the combined effect was not statistically significant ( P>0.05) . Conclusions:The standardized enteral nutrition process could effectively increase the calorie compliance rate of critical ill patients on the seventh day and reduce the incidence of feeding intolerance symptoms; however, it cannot significantly shorten the time of mechanical ventilation, ICU hospitalization time and reduce the mortality. Further research is needed for verification.

Objective: To investigate the application values of immunophenotypic analysis and molecular genetics in the diagnosis of acute promyelocytic leukemia (APL) . Methods: The retrospective analyses of flow cytometric (FCM) immunophenotypic anyalysis, chromosome karyotype and chromosome fluorescence in situ hybridization (FISH) of 798 outpatient or hospitalization APL patients referred to our hospital between May 2012 and December 2017 were performed to further study the application values of FCM and molecular genetics in the diagnosis of APL. Results: The sensitivity and specificity of FCM were 91.9% and 98.7% respectively. The typical characteristic immunophenotype for APL was as of follows: a high SSC, absence of expression of cluster differntiation (CD) CD34 and HLA-DR, and expression or stronger expression of CD33, consistent expression of CD13, CD9, CD123, expression of CD56, CD7, CD2 (sometimes) . The rest 10% of the cases harbored atypical APL phenotypes, generally accompanied by CD34 and/or HLA-DR expression, decreased SSC and often accompanied by CD2 expression, it was difficult to definitively diagnose APL by this FCM phenotype, and their diagnoses depended on the results of genetics or molecular biology tests. Compared with normal individuals, complex karyotypes APL with t (15;17) translocation, other variant translocations and variant t (11;17) , t (5;17) had no significant differences in terms of their FCM phenotypes. Conclusions FCM could rapidly and effectively diagnose APL. Despite the fact that complex karyotypes with various additional chromosomal abnormalities were detected in approximately one third of APL cases in addition to the pathognomonic t (15;17) (q22;q21) , they had no observable impact on the overall immunophenotype. Molecular and genetic criteria were the golden criteria for the diagnosis of APL. About 10% of immunophenotyping cases relied on molecular genetics for diagnosis.

Objective: To explore the predictive value of minimal residual disease (MRD) level in Ph-negative precursor B-acute lymphoblastic leukemia (ALL) patients. Methods: De novo 193 Ph-negative B-ALL patients from Sep 2010 to Nov 2017 were involved in the study. The patients' MRD evaluation which can be performed by multiparametric flow cytometry (MFC) after 1 month, 3-month, 6-month treatment. Relapse free survival (RFS) and overall survival (OS) were compared in patients with different MRD level. Results: The median follow-up was 22 months. All patients was evaluated at 497 MRD level. Patients who reach the good MRD level at 1 month (<0.1% or ≥0.1%), 3-month (negative or positive), 6-month (negative or positive) had a significantly higher probability of estimated RFS (74.5% vs 29.9%; 75.6% vs 29.7%; 74.6% vs 11.6%) and of estimated OS (67.5% vs 30.3%; 71.6% vs 27.8%; 74.0% vs 15.7%). Patients who reach the MRD negative at all 3 times had a significantly higher probability of estimated RFS (80.5% vs 30.5%) and better estimated OS (77.1% vs 29.4%) compared to patients with at least MRD failure in one time (P<0.001). Multivariable analysis showed MRD level at 3-month was an independent prognostic factor for DFS and OS. Conclusion MRD is an important prognosis factor for Ph-negative B- ALL patients.

OBJECTIVE: To investigate the effect of dexmedetomidine combined with pulmonary protective ventilation against lung injury in patients undergoing surgeries for esophageal cancer with one-lung ventilation (OLV). METHODS: Forty patients with undergoing surgery for esophageal cancer with OLV were randomly divided into pulmonary protective ventilation strategy group (F group) and dexmedetomidine combined with protective ventilation strategy group (DF group; =20). In F group, lung protective ventilation strategy during anesthesia was adopte, and in DF group, the patients received intravenous infusion of dexmedetomidine hydrochloride (0.3 μg · kg ·h) during the surgery starting at 10 min before anesthesia induction in addition to protective ventilation strategy. Brachial artery blood was sampled before ventilation (T), at 30 and 90 min after the start of OLV (T and T, respectively) and at the end of the surgery (T) for analysis of superoxide dismutase (SOD), malondialdehyde (MDA), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), arterial oxygenation pressure (PaO), oxygenation index (OI) and lung compliance (CL). RESULTS: At the time points of T, T and T, SOD level was significantly higher and IL-6 level was significantly lower in the DF group than in F group ( < 0.05). The patients in DF group showed significantly higher PaO, OI and CL index than those in F group at all the 3 time points. CONCLUSIONS Dexmedetomidine combined with pulmonary protective ventilation strategy can reduce perioperative lung injury in patients undergoing surgery for esophageal cancer with OLV by suppressing inflammation and oxidative stress to improve lung function and reduce adverse effects of the surgery.
Analgesics, Non-Narcotic ; pharmacology ; therapeutic use ; Dexmedetomidine ; pharmacology ; therapeutic use ; Esophageal Neoplasms ; drug therapy ; surgery ; Humans ; Lung ; drug effects ; surgery ; One-Lung Ventilation ; Oxidative Stress ; drug effects ; Treatment Outcome