An HPLC analytical method was developed to determine the related substances in carbetocin injection. The method was performed on a Waters Xbridge C18 column (150 mm×3 mm, 3.5 μm) with 0.30 mg/mL ammonium acetate-19% acetonitrile aqueous solution as mobile phase A and mobile phase A-acetonitrile (1∶1) as mobile phase B. The detection wavelength was 220 nm. Gradient elution was performed at the flow rate of 0.8 mL/min and the column temperature of 60℃. The method was validated for system applicability, specificity, linearity and range, accuracy, with the results that the 9 impurities of carbetocin injection showed good linearity (R²>0.999) with peak area in their respective concentration range, and that the method had good precision (RSD<5%). This method is suitable for the simultaneous determination of carbetocin and its 9 impurities in carbetocin injection and can provide a theoretical basis for the quality control of the carbetocin injection.

ObjectiveTo understand the prevalence of respiratory syncytial virus （RSV） infections among children hospitalized with severe acute respiratory infections （SARI） in Huzhou， Zhejiang Province， and to explore the epidemiological characteristics and influencing factors of RSV. MethodsNasopharyngeal swab samples from children under 15 years of age， newly admitted to the Huzhou First People's Hospital from 2018 to 2022 and who met the SARI surveillance definition， were collected for respiratory virus nucleic acid testing. SPSS 25.0 and Excel 2016 software were used for statistical analysis of the data. ResultsA total of 1 076 samples were tested for nucleic acids， with an overall positivity rate of 11.2%. The positivity rate of infants under 5 years old was relatively high （16.7%）. RSV infection showed a seasonal distribution， mainly concentrated in autumn and winter， with the highest positivity rate in December （22.3%）. A total of 23 cases of respiratory mixed infection were detected， with a mixed infection rate of 2.13%， among which 16 were RSV-related mixed infections. Logistic regression analysis indicated that season and age were risk factors for RSV infection. ConclusionFrom 2018 to 2022， RSV showed different epidemiological characteristics across different ages and seasons in SARI cases in Huzhou， with significant differences， providing a scientific basis for future prevention of RSV infections.

Objective To apply PDCA(plan,do,check and action)cycle to optimize management and shorten the turnaround time(TAT)of five sex hormone tests for improving clinical efficiency and patient satisfaction.Methods A PDCA management team was established to retrospectively analyze the current status of sex hormone TAT in 2021.In 2022,PDCA tools were utilized,including fishbone diagrams for cause analysis,Pareto charts for root cause identification,formulation and implementation of corresponding im-provement measures and monitoring of TAT changes before and after PDCA.Results Through the corrective measures,such as staff personnel training,increasing testing equipment,optimization process and other improvement measures,the median TAT of sex hor-mone samples in 2022(post-PDCA improvement)was 54 minutes which was significantly lower than 61 minutes in 2021(pre-PDCA)(P＜0.05).Conclusion PDCA cycle management effectively shortened the TAT of sex hormone samples,enhanced clinical diagnostic efficiency and patient experience,improved doctor-patient relationships,while also elevated the quality management standards of labo-ratories.

Objective In this study,we attempted to investigate whether Electroacupuncture(EA)could promote the autophagy function in macrophages of inflammatory skin tissues by activating CB2 receptor,thus relieving inflammatory pain induced by CFA in mice,and whether activation of CB2 receptor in NR8383 macrophages cell line can simulate the effect of EA on the autophagy function and mitochondrial damage.Methods Inflammatory pain model was induced by CFA injection into the planta the hind paw of wildtype and CB2 knockout mice.EA or sham EA was applied on the left Huantiao(GB30)and Yanglingquan(GB34)sites.Thermal hyperalgesia was determined with the Hargreaves test.Mechanical sensitivity was assessed with von Frey filaments.NR8383 microphage cell line was used to study the effect of CB2 activation on macrophage function induced by CFA.The expression level of autophagy protein LC3 and p62 in wildtype and CB2 knockout mice skin tissue and NR8383 cell line were determined by Western blot.And flow cytometry analysis was applied to detect damaged mitochondria and mitochondrial superoxide.Results CFA significantly reduced the thermal and mechanical pain threshold in both wildtype and CB2 knockout mice,comparing with the vehicle control groups(P<0.01).EA significantly inhibited thermal and mechanical hyperpathia induced by CFA in wildtype mice(P<0.05),but had no effect on CB2 knockout mice with CFA(P>0.05).CFA significantly increased the expression of p62 protein and decreased LC3-II/I ratio,which was inversed by EA in wildtype mice but wasn't affected by EA in CB2 knockout mice.CFA increased the expression of p62 protein and decreased LC3-II/I ratio in NR8383 cell line,which were inversed by CB2 agonist AM1241.CFA increased mitochondria damage,which were then attenuated by CB2 agonist AM1241.Conclusion The analgesic effect of EA on inflammatory pain induced by CFA was mediated by activation of CB2 receptor,which promoted the autophagy function and the clearance of damaged mitochondria in macrophage.

Objective To explore the availability and safety of ileal ureter replacement combined with ileal augmentation cystoplasty in treating ureteral stenosis with contracted bladder.Methods From August 2015 to November 2018,three patients who underwent ileal ureter replacement combined with augmentation cystoplasty were treated with ileal ureter replacement combined with augmentation cystoplasty.There were 1 male and 2 females with the age ranging from 34 to 55 years (mean 39 years).Two patients suffered from left ureter stenosis,and one patient had stenosis on the both sides.The length of the ureter stenosis ranged from 6 to 18 cm (mean 9.8 cm).The preoperative bladder capacity ranged from 60 to 150 ml (mean 103.3 ml).In the surgery,part of ileum was used to replace the ureter,and the distal intestine was made into U-shape to enlarge the bladder.Results All operation were completed successfully.The operation time ranged from 220 to 400 min (mean 303.0 min),and the blood loss ranged from 150 to 500 ml (mean 283.3 ml).Laparoscopic surgery was performed in 1 case and open surgery in 2 cases.Three weeks after the surgery,the bladder volume underwent cystography ranged from 300 to 400 ml (mean 360.0 ml).Three months after the surgery,the postvoid residual urine volume ranged from 20 to 50 ml (mean 33.3 ml).Postoperative frequency and urgency of urine were completely relieved in 1 case,alleviated in 2 cases.Flank pain was completely relieved in 1 case,and alleviated in 2 cases postoperatively.The serum creatinine of 2 patients mildly increased after the surgery,while 1 patient remained stable.For complications,1 patient had urinary infection,and 1 patient suffered from metabolic acidosis.Conclusions Ileal ureteral replacement combined with augmentation cystoplasty can be the choice of treatment for long segment ureteral stenosis and enlarge the bladder simultaneously.The postoperative complications and the kidney functions should be regularly followed up.

Objective: To investigate the effects of oxidized low-density lipoprotein/β2 glycoproteinⅠ/β2 glycoproteinⅠantibody (oxLDL/β2GPⅠ/β2GPⅠ-Ab) complex on the phenotypic transformation and lipid transpoters on the surface of rat thoracic aorta smooth muscle cell line (A7r5), and their correlation with toll-like receptor 4 (TLR4) signaling pathway. Methods: A7r5 cells were stimulated by oxLDL, oxLDL/β2GPⅠ complex, oxLDL/β2GPⅠ-Ab complex, β2GPⅠ/β2GPⅠ-Ab complex and oxLDL/β2GPⅠ/β2GPⅠ-Ab complex respectively, and then total RNA and protein were collected. The expressions of α-smooth muscle actin (α-SMA), macrophage surface marker CD68, galectin-3 (LGALS3), scavenger receptor class B member 3 (CD36) and ATP-binding cassette transporter A1/G1 (ABCA1/ABCG1) were detected by real-time quantitative PCR (RT-qPCR), western blot and immunofluorescence (IF) respectively. The roles of TLR4 and its downstream signaling molecules in the phenotypic transformation and expression changes of lipid transporters of A7r5 cells induced by oxLDL/β2GPⅠ/β2GPⅠ-Ab complex were investigated by the pretreatment of TLR4 blocker TAK-242 (5 μmol/L) or c-Jun N-terminal kinases 1/2 (JNK 1/2) blocker SP600125 (90 nmol/L). Results: The oxLDL/β2GPⅠ/β2GPⅠ-Ab complex significantly increased the levels of CD68 and LGALS3, and decreased the level of α-SMA, while TAK-242 could reverse this phenomenon. The oxLDL/β2GPⅠ/β2GPⅠ-Ab complex could promote the expression of CD36 and inhibit the expression of ABCA1/ABCG1, while TAK-242 and SP600125 could reverse this process. Conclusion The oxLDL/β2GPⅠ/β2GPⅠ-Ab complex promotes the phenotypic transformation of A7r5 cells to macrophage-like cells, regulates the expression of lipid transport-related molecules and enhances the ability of lipids transport into cells. TLR4 and JNK1/2 are closely related to this process.

Objective: To investigate the effects of β2 glycoprotein Ⅰ/anti-β2 glycoprotein Ⅰ complex (β2/aβ2) on oxidized low density lipoprotein (oxLDL)-mediated lipid accumulation and focal adhesion kinase (FAK) activation in THP-1 macrophage, as well as the role of Toll-like receptor 4 (TLR4) during the process. Methods: THP-1 cells were differentiated into THP-1 macrophage by PMA (100 ng/mL). THP-1 macrophages were treated with RPMI 1640 medium, oxLDL, oxLDL+β2/aβ2 or oxLDL+lipopolysaccharide (LPS). The mRNA expressions of lipid transportation molecules, ACAT1, ABCA1 and ABCG1 were detected by RT-qPCR. Intracellular total cholesterol (TC) and free cholesterol (FC) in THP-1 macrophages were evaluated by Trinder assay, then the content and proportion of intracellular cholesteryl ester (CE) were calculated. The expression and phosphorylation of FAK were detected by immune fluorescence, RT-qPCR and western blot. To evaluate the role of TLR4, THP-1 macrophages were pre-treated with or without TLR4 inhibitor TAK-242 (1 μg/mL). Results: β2/aβ2 treatment significantly inhibited oxLDL-mediated lipid accumulation and FAK expression and phosphorylation in THP-1 macrophages, which could be reversed by TLR4 blockage. Conclusion β2/aβ2 inhibits the oxLDL-mediated lipid accumulation and FAK activation of THP-1 macrophage, which is related to the function of TLR4.

Migraine is a kind of nerve vascular disease, characterized by hemialgia, moderate and severe, pulsating pain. Acupuncture as a safe and effective analgesic therapy, has been widely used in more than 160 countries and regions around the globe. Treating migraine with acupuncture has certain good features as effective, non-toxic side effects and untoward effect.But its mechanism is still not very clear.The cerebral blood flow study ( CBF study) is currently the most credibility of migraine pathogenesis theory.Now based on the theory of CBF study, this paper discusses the acupuncture treatment of migraine which can provide the basis for clinical treats.

OBJECTIVETo investigate the quality of life of cleft lip and/or palate children's parents and discuss the factors to provide the oretical basis for improving the quality of life of these parents and promoting the healthy growth of children with cleft lip and/or palate.

METHODSA total of 115 parents whose children had cleft lip and/or palate surgery treatment were selected as the experiment group, and another 198 parents (with healthy children having a similar age with those in the experiment group) as the control group. The experiment group was divided into three subgroups according to different types of cleft lip and/or palate: cleft Lip (CL), cleft palate (CP), cleft lip and palate (CLP). The experiment group and the control group were both divided into four subgroups according to age: 0-1, 1-3, 3-6 years old, and more than 6 years old. The experiment group and the control group were both divided into three subgroups according to education: junior middle school and the following, high school and technical secondary school, junior college degree or above. The GQOLI-74 scale was selected to assess the experiment group and the control group. SPSS 16.0 software was used to analyze data.

RESULTS1) The experiment group had no significant difference with the control group in terms of the overall score and the scores of various children ages. 2) The scores of every item had no significant difference in CL, CP, CLP subgroup (P > 0.05). 3) The quality of life scores and scores of psychological function dimension and social function dimension of parents with 3-6 years old patients were obviously lower than those of parents with more than 6 years old patients (P<0.05). The scores of social function dimension of parents with 0-1, 1-3, 3-6 years old patients were obviously lower than those of parents with more than 6 years old patients (P < 0.05). The other items had no significant difference. 4) The scores of material life dimension and social function dimension of parents with junior college degree or above were higher than those of parents with junior middle school degree and the following (P < 0.05). The scores of social function dimension of parents with high school and technical secondary school degree were higher than those of parents with junior middle school degree and the following (P < 0.05).

CONCLUSIONNo difference was observed in the quality of life between cleft lip and/or palate children's parents and normal group. The parents with the low age children with cleft lip and/or palate and low-levels of education need more help and support to improve quality of life.

Child ; Child, Preschool ; Cleft Lip ; psychology ; Cleft Palate ; psychology ; Humans ; Infant ; Quality of Life ; Social Adjustment ; Software

Objective To investigate the quality of life of cleft lip and/or palate children’s parents and discuss the factors to provide the oretical basis for improving the quality of life of these parents and promoting the healthy growth of children with cleft lip and/or palate. Methods A total of 115 parents whose children had cleft lip and/or palate surgery treatment were selected as the experiment group, and another 198 parents (with healthy children having a similar age with those in the experiment group) as the control group. The experiment group was divided into three subgroups according to different types of cleft lip and/or palate: cleft Lip (CL), cleft palate (CP), cleft lip and palate (CLP). The experiment group and the control group were both divided into four subgroups according to age: 0-1, 1-3, 3-6 years old, and more than 6 years old. The experiment group and the control group were both divided into three subgroups according to education: junior middle school and the following, high school and technical secondary school, junior college degree or above. The GQOLI-74 scale was selected to assess the experiment group and the control group. SPSS 16.0 software was used to analyze data. Results 1) The experiment group had no significant difference with the control group in terms of the overall score and the scores of various children ages. 2) The scores of every item had no significant difference in CL, CP, CLP subgroup (P>0.05). 3) The quality of life scores and scores of psychological function dimension and social function dimension of parents with 3-6 years old patients were obviously lower than those of parents with more than 6 years old patients (P<0.05). The scores of social function dimension of parents with 0-1, 1-3, 3-6 years old patients were obviously lower than those of parents with more than 6 years old patients (P<0.05). The other items had no significant difference. 4) The scores of material life dimension and social function dimension of parents with junior college degree or above were higher than those of parents with junior middle school degree and the following (P<0.05). The scores of social function dimension of parents with high school and technical secondary school degree were higher than those of parents with junior middle school degree and the following (P<0.05). Conclusion No difference was observed in the quality of life between cleft lip and/or palate children’s parents and normal group. The parents with the low age children with cleft lip and/or palate and low-levels of education need more help and support to improve quality of life.