Objective To observe the effect Azithromycin injection in the treatment of mycoplasma pneumoniae pneumonia ( MPP) in children. Methods Forty-four children of mycoplasma pneumoniae pneumonia were randomly divided into two groups, the Azithromycin group ( treat by Azithromycin, made by Pfizer) and the control group (treat by domestic Azithromycin) respectively. Improvement in symptoms and signs between the two groups were observed and compared. Results There were 25 cases in the Azithromycin group, of which,after a week, 17 cases cured,2 cases got better significantly and 6 cases got better. The effective ratio was 76. 00% ( 19/25 ). There were 19 cases in the control group, of which 5 cases cured, 9 cases got better significantly ,4 cases got better and 1 case no change. The effective ratio was 73. 68% (14/19). There was no statistical significance in the effective ratio between the two groups ( x2 = 0. 03, P > 0. 05). However, the Azithromycin group was superior to the control group both in the one week cure rate (t = 7.50,P< 0.05) and on defervescence time (t = 34. 05, P < 0. 05 ) and rales disappearance (t = 2. 39, P < 0. 05 ). Conclusion Azithromycin injection is more effective than domestic Azithromycin in the treatment of mycoplasma pneumoniae pneumonia,especially in the aspect of improving symptoms.

The presence of insufficient bone volume affects the implant healing and success. The aim of this study was to evaluate osteogenic capacity of dental pulp stem cells (DPSCs) on micro-arc oxidation (MAO) titanium surface. DPSCs were challenged at MAO and smooth titanium surface separately for different durations, and the bone marrow mesenchymal stem cells (BMSCs) served as the positive controls. The osteogenic capacity of DPSCs on MAO titanium surface was assessed by using scanning electron microscopy, energy dispersive spectroscopy, biochemical tests and real-time quantitative PCR. Data showed that DPSCs differentiated into osteoblasts and expressed bone morphogenetic genes on MAO titanium surface. The results of this study revealed that DPSCs had good potential to generate mineralized tissue on MAO titanium plates. The differential potential of DPSCs may be regulated by MAO titanium surface. The osteogenesis potential of DPSCs on the MAO titanium was similar with BMSCs.

The presence of insufficient bone volume affects the implant healing and success. The aim of this study was to evaluate osteogenic capacity of dental pulp stem cells (DPSCs) on micro-arc oxidation (MAO) titanium surface. DPSCs were challenged at MAO and smooth titanium surface separately for different durations, and the bone marrow mesenchymal stem cells (BMSCs) served as the positive controls. The osteogenic capacity of DPSCs on MAO titanium surface was assessed by using scanning electron microscopy, energy dispersive spectroscopy, biochemical tests and real-time quantitative PCR. Data showed that DPSCs differentiated into osteoblasts and expressed bone morphogenetic genes on MAO titanium surface. The results of this study revealed that DPSCs had good potential to generate mineralized tissue on MAO titanium plates. The differential potential of DPSCs may be regulated by MAO titanium surface. The osteogenesis potential of DPSCs on the MAO titanium was similar with BMSCs.
Animals ; Cells, Cultured ; Dental Pulp ; drug effects ; physiology ; Male ; Osteogenesis ; drug effects ; physiology ; Rats ; Rats, Sprague-Dawley ; Stem Cells ; drug effects ; parasitology ; Titanium ; pharmacology

Objective To investigate the consistency of fetal gallbladder volume (FGV) during middle-late pregnancy with three-dimensional ultrasonic virtual organ computer-aided analysis (VOCAL) technique at different rotation angles,and to analyze the correlation between FGV and gestation age.Methods A total of 157 healthy pregnant women underwent prenatal screening were included.The reference range of FGV was measured with three-dimensional ultrasonic VOCAL at 30°,18° and 12° rotation angle,respectively.The correlation between FGV and gestation age was observed,and the consistency of FGV values measured with VOCAL at different rotation step angles was compared.Results The correlations between FGV values measured with VOCAL at 30°,18°,12° rotation step angles and gestation age were all excellent (r=0.92,0.88,0.90;all P＜ 0.001).The consistency of FGV values measured with VOCAL at different rotation step angles was very good (30° and 18°,ICC=0.94;30° and 12°,ICC=0.97;18° and 12°,ICC=0.94).Conclusion Three-dimensional ultrasonic VOCAL can be used to establish the reference range of fetal gallbladder volume in middle-late pregnancy.The consistency of FGV values measured with VOCAL at different rotation step angles was very good,and the correlation between FGV and gestation age was excellent.

Objective To explore the effect of oridonin on the endoplasmic reticulum stress (ERS) in colonic epithelium of ulcerative colitis (UC) mice.Methods The UC mice model was established by sodium dextran sulfate (DSS),and the intervention group of oridonin and sulfasalazine was set up,the disease activity index (DAD was measured,the colonic tissue was evaluated by histopathologidscore (HPS),and RT-qPCR was used to detect the expression of inflammatory cytokines tumor factor-α (TNF-α),interleukin 6 (IL-6),cyclooxygenase 2 (COX-2),glucose-regulated protein 78 (GRP78),transcription factor EBP homologous protein (CHOP),activator transcription factor 6 (ATF6),protein kinase R like endoplasmic reticulum kinase (PERK) and inositol requiring enzyme 1α (IRE1α).Results The expression of TNF-α,IL-6,COX-2,GRP78,ATF6,CHOP,PERK and IRE1α mRNA in the colonic epithelium of the model group were all up-regulated obviously as compared with the healthy control group(P＜0.05,P＜0.01).When compared with the model group,DAI and HPS in oridonin-treated group were significantly decreased (P＜0.05,P＜0.01),which the curative effect was similar to that of the sulfasalazine group(P＞0.05,P＜0.01).The expression of TNF-α,IL-6,COX-2,GRP78,CHOP,ATF6 and PERK mRNA levels were significantly reduced in oridonin-treated group(P＜ 0.05,P＜0.01).Conclusion Oridonin can alleviate colonic inflammation induced by DSS and its mechanism may be related to ERS of colonic epithelial tissue.

Functionalized graphene oxide is prepared based on graphene. It has attracted great interest from all over the world due to its good solubility, biocompatibility, high loading rate, and easy modification. This paper summarizes the surface modification of graphene oxide, and its applications on anti-tumor, antibacteria, anti-hypertension, gene therapy and biosafety as a drug carrier, providing new methods and ideas in the biomedical field.

OBJECTIVE: To explore the genetic basis of a Chinese patient featuring global developmental delay. METHODS: Peripheral venous blood samples from the proband and his parents and sister were taken for the extraction of DNA. Target capture and next generation sequencing was carried out to detect genetic variants associated with the disease. Suspected variant was validated by Sanger sequencing. RESULTS: Genetic testing discovered that the proband has carried hemizygous c.150G>T and c.150+1G>T variants of the KDM5C gene which are inherited from his mother. His younger sister also carried the variants. The c.150+1G>A variant was unreported previously, which has altered a splice site and was predicted to be pathogenic by bioinformatics analysis. CONCLUSION The hemizygous c.150+1G>T variant of the KDM5C gene, known to underlie X-linked Claes-Jensen type syndromic mental retardation, probably accounts for the disorder in the patient. Identification of this variant has enriched the variant spectrum of the KDM5C gene.

Objective To analyze the onset characteristics of type 2 diabetes mellitus (T2DM) with cognitive impairment in Baotou area, and study the improvement effect of GLP-1 receptor agonists. Methods A total of 320 patients with T2DM admitted between September 2021 and September 2022 were selected and divided into the observation group with T2DM and cognitive dysfunction and the negative control group without cognitive dysfunction according to their cognitive function status , Among the 160 cases in each group; Patients with type 2 diabetes and cognitive impairment were randomly divided into a treatment group and a control group, 80 cases in each group; the control group was treated with conventional treatment, and the treatment group was additionally treated with semaglutide; Logistics multiple regression model was used to analyze T2DM The related risk factors of cognitive impairment in patients were assessed by the Mini-Mental State Examination (MMSE) score to evaluate the cognitive function of the patients. Results Multivariate regression model showed that course of disease, age, vitamin D, HbA1c, LDL-C, BMI, Hcy, Lp-PLA2, TNF-α, IL-6 and folic acid levels were also independent risk factors for cognitive impairment in T2DM patients (P<0.05); There was a significant positive correlation between GLP-1 receptor agonists and cognitive function recovery in T2DM patients with cognitive impairment (P<0.05). Conclusion The onset of T2DM with cognitive impairment in Baotou area is often accompanied by a long course of disease, older age, abnormal levels of vitamin D, HbA1c, LDL-C, BMI, Hcy, Lp-PLA2, TNF-α, IL-6 and folic acid, and GLP -1 receptor agonists have a clear role in improving the cognitive function of patients.

Objective To study the pharmacokinetic characteristics of clobazam tablet in Chinese healthy subjects and evaluate the bioequivalence of test preparation(T)and reference preparation(R)under fasting or fed conditions.Methods A randomized,open-label,single-dose,two-period,two-way crossover bioequivalence trial was performed.34 healthy subjects were enrolled in fasting study and 30 in fed study.Each subjects received a single dose of T 20 mg or R 20 mg with a washout period of 28 days.Plasma concentrations of clobazam and its active metabolite,N-desmethylclobazam were determined by liquid chromatography-tandem mass spectrometry(LC-MS/MS).The pharmacokinetic parameters of clobazam and N-desmethylclobazam were calculated by non-compartment model.Geometric mean values for the T/R ratios of clobazam's main pharmacokinetic parameters and their corresponding 90 percent confidence intervals(CI)were evaluated to assess bioequivalence of the two preparations.Results In fasting study,the 90 percent CI of the geometric mean values for the T/R ratios were 94.46 to 103.82 percent for Cmax,99.64 to 103.62 percent for AUC0-tand 99.39 to 103.51 percent for AUC0-∞,respectively.In fed study,the 90 percent CI of the geometric mean values for the T/R ratios of were 93.86 to 106.02 percent for Cmax,100.37 to 104.51 percent for AUC0-tand 100.71 to 104.63 percent for AUC0-∞,respectively.Conclusion In this study,the 90 percent CI of the geometric mean values of Cmax,AUC0-tand AUC0-∞ for T/R ratios were all within the acceptable bioequivalence limits of 80 to 125 percent for clobazam.Therefore two formulations were considered bioequivalent.

Objective: To investigate the implementation and application effect of 1-hour bundle in the treatment of patients with sepsis. Methods: A convenient sampling method was conducted. 102 patients with sepsis admitted to central intensive care unit (ICU) of Henan Provincial People's Hospital from January 2018 to February 2019 were enrolled. Thirty-five patients with 3-hour and 6-hour bundle from January to September in 2018 were served as the control group, and 67 patients who received 1-hour bundle from October 2018 to February 2019 were served as the observation group. The patients in the control group was treated with 3-hour and 6-hour bundle according to 2012 international guidelines for the diagnosis and treatment of severe sepsis and septic shock; and those in the observation group were treated and nursed according to the 1-hour bundle published by Surviving Sepsis Campaign (SSC) update 2018, and the sepsis cluster treatment medical team was established. The team members were trained in relevant knowledge and discussed the possible obstacles within the team and propose feasible measures. The implementation of the 1-hour bundle in the observation group was recorded. The general data of the patients in both groups including gender, age, acute physiology and chronic health evaluation Ⅱ (APACHEⅡ), etc. were collected, and the outcome indicators [duration of mechanical ventilation, length of ICU stay, 28-day mortality] were observed. Results: In the observation group, 37 of 67 patients receiving 1-hour bundle met the target, with the overall achievement rate of 55.2% (37/67). Of the 37 eligible patients, 5 patients receiving 1-hour bundle met the target before the training of 1-hour bundle, accounting for only 33.3% (5/15) of the 15 patients who received 1-hour bundle during the same period. With the extension of training time, the achievement rate of sepsis 1-hour bundle was gradually increased [the achievement rate at 1 week and 4 weeks of training was 40.0% (4/10) and 52.4% (11/21), respectively], and increased to 81.0% (17/21) at the end of 12 weeks training. Thirty-seven patients who received 1-hour bundle and met the criteria were enrolled and compared with the control group. There was no significant difference in gender, age, or APACHEⅡ score between the two groups. Compared with the control group, the duration of mechanical ventilation and length of ICU stay of the observation group were significantly shortened (days: 6.15±0.49 vs. 7.24±0.53, days: 8.21±1.49 vs. 9.51±1.92), and the 28-day mortality was decreased significantly [10.8% (4/37) vs. 31.4% (11/35)], with statistically significant differences (all P < 0.05). Conclusions Through teamwork, discussion and improvement, the achievement rate of sepsis 1-hour bundle can be significantly improved. The use of sepsis 1-hour bundle can effectively decrease the duration of mechanical ventilation and length of ICU stay, and reduce the 28-day mortality.