Objective To explore related influencing factors for postoperative delirium in elderly patients, to provide a reference for the prevention and treatment. Methods Fifty-four patients with delirium after surgery were used as observa?tion group, and a total of 150 subjects with no delirium after surgery during the same period were selected as the control group. Data of age, gender, malnutrition, disorders of water and electrolyte metabolism, postoperative mechanical ventilation, postoperative hypoxemia, severe infection and postoperative pain degree, and the combination of basic diseases were com?pared and analysed between two groups. The binary logistic regression analysis was used to analyse the influencing factors of postoperative delirium. The outcome and prognosis were observed and analyzed in observation group. Results The average age was significantly higher in observation group than that of control group (P<0.05). The percentages of postoperative hy?poxemia and severe infection were significantly higher in observation group than those of control group ( P<0.05). Patients with higher age, postoperative hypoxemia and severe infection were risk factors for postoperative delirium. In observation group,1 case died of lung infection, 1 case died of multiple organ failure, the remaining 52 patients were improved and dis?charged from hospital after three months. Conclusion For patients with higher age, postoperative hypoxemia and severe in?fection are the risk factors for occurrence of postoperative delirium. More attention should be paid to clinical preoperative and postoperative periods.

Purpose To explore the correlation between fetal cardiac function and interventricular septal thickness in fetuses of gestational diabetes mellitus (GDM) mothers. Materials and Methods Thirty-nine GDM mothers were involved in the study and divided into group MH (fetuses of GDM mothers with interventricular septal hypertrophy) and group NMH (fetuses of GDM mothers with normal interventricular septal thickness). Ultrasonic cardiogram was performed for both groups to assess such variables as interventricular septum thickness at end diastole (IVSd), left ventricular ejection fraction (LVEF), left ventricular fraction shortening (LVFS), right ventricular fraction shortening (RVFS), the ratio of E and A of mitral flow (E/AMV), the ratio of E and A of tricuspid flow (E/ATV), peak velocity of aortic valve (VPAO), peak velocity of pulmonary valve (VPPA) and myocardial performance index (MPI). The results were further compared with those of control group. Results The VPAO, VPPA, LVEF and LVFS in group NMH were significantly higher than those in control group (P<0.05). The VPAO, VPPA, LVEF, LVFS and RVFS in group MH were significantly higher than those in control group whilst the E/AMV and E/ATV significantly lower than those in control group (P<0.05). The LVEF, LVFS and RVFS in group MH were significantly higher than those in group NMH whilst the E/AMV and E/ATV significantly lower (P<0.05). MPI in group MH was significantly higher than that in group NMH (P<0.05), whilst both were significantly higher than that in control group (P<0.05). The LVEF, LVFS, RVFS, VPAO and VPPA were positively correlated with IVSd (r=0.48, 0.51, 0.45, 0.30, 0.30;P<0.05). Conclusion Cardiac function in fetuses of GDM mothers may be associated with interventricular septal thickness.

Objective To investigate the effect and mechanism of decorin (DCN) on invasion of colorectal cancer cell line HCT116 in vitro.Methods Transwell assay was employed to detect the invasion of HCT116 cells;Real-time PCR was used to detect the expression of CD133 and TIMP-2 mRNA of HCT116 cells;Western blot method was used to detect the expression of HIF-1α, CD133 and TIMP-2 protein of HCT116 cells.Results 1) When the concentrations of DCN was 0, 1 and 3 mg/L, under the conditions of normal oxygen and hypoxia, the numbers of invasive cells were (241±46), (168±46), (51±17) fields in each well (P<0.01) and (207±61), (213±64), (156±54), (44±17) fields in each well (P<0.01).2) Under the normoxic conditions, the TIMP-2 mRNA and protein in HCT116 cells were increased by DCN (3 mg/L) (P<0.01), but that of CD133 were not affected.3) DCN (3 mg/L) significantly decreased the expression of HIF-1α/CD133/TIMP-2 protein in HCT116 cells under hypoxia (P<0.01), but had no significant effect on the expression of CD133 mRNA.ConclusionsUnder the conditions of hypoxia and normal oxygen, DCN may function through different mechanisms to inhibit the invasion of colorectal adenocarcinoma cell line HCT116 in vitro.

Objective To investigate the characteristics of ocular movement disorders in patients with multiple sclerosis (MS) and neuromyelitis optica (NMO), and explore the clinical application of videonystagmograph (VNG) exami?nation in the diagnosis and differential diagnosis of MS. Methods Sixteen MS ,10 NMO and 30 control ( sudden deafness ) patients were enrolled prospectively. Ocular movement disorders including saccades, gaze fixation, smooth pursuits, opto?kinetic nystagmus and spontaneous nystagmus were evaluated by using VNG. Results The positive rate of ocular motility disorders in MS patients detected by VGN was 68.75%. The incidences of abnormalities in saccades, smooth pursuits and optokinetic nystagmus were significantly higher in MS than in control groups (P= 0.000, 0.001 and 0.001, respectively). The positive rate of ocular motility disorders in NMO patients detected by VGN was 80.00%. The incidences of abnormal?ities in saccades, gaze fixation, smooth pursuits and optokinetic nystagmus were significantly higher in NMO than control groups (P=0.000, 0.012, 0.000 and 0.002, respectively). The positive rate of ocular motility disorders was not significant? ly different in MS and MS patients (68.5%vs. 80%,P>0.05). Compared with bedside physical examination, VNG showed a notable higher sensitivity in the detection of ocular motility disorders(68.75% vs. 37.50%). Furthermore, VNG disor?ders might indicate brain lesions undetected by MRI. Conclusion This small sample research indicates that VNG is a valuable tool in the detection of ocular motility disorders as well as brain lesions in MS and NMO patients. However, its role in the differential diagnosis between MS and NMO is not confirmed.

Metabonomics approach is a science that systematically studies the regularity of changes of metabolites and reveals the nature of metabolic activities of the lives in the dynamic process of metabolism. In this study, pregnant C57BL/6J mice were randomly divided into two groups with 15 mice in each. The ones in the experimental group were intraperitoneally injected with Dexamethasone and the others in the control group with isotonic Na chloride from 10th to 12th day of gestational period. On 17.5th day, all the mice were executed. The livers were extracted and prepared into aqueous soluble liver tissue extracts. The technology of nuclear magnetic resonance (NMR) was used to detect the endogenous small molecule metabolites. Finally, through the method of principal component analysis (PCA), changes of metabolites ingredients could be determined. The experimental results showed that there was significant difference in PCA scores plot between the two groups. Furthermore, the difference was in line with that of incidence of cleft palate in the embryos between the two groups. Therefore, metabonomics results can be used to reflect the changes of metabolites group interfered by Dexamethasone in the course of pregnancy of C57BL/6J mice and this method opens up a new way for further study of pathogenic mechanism of cleft lip with or without palate.
Abnormalities, Drug-Induced ; etiology ; metabolism ; Animals ; Cleft Palate ; chemically induced ; Dexamethasone ; toxicity ; Embryo, Mammalian ; Female ; Magnetic Resonance Spectroscopy ; methods ; Metabolomics ; Mice ; Mice, Inbred C57BL ; Pregnancy

Objective:To research the mitochondrial cytochrome c oxidase subunit I (MT-COI) gene methylation levels in patients with occupational chronic benzene poisoning, and to explore effective molec μlar biomarkers in patients with occupational chronic benzene poisoning.Methods:38 confirmed cases of occupational chronic benzene poisoning were selected in the case group. 46 healthy people who underwent physical in our hospital were selected in the control group. Pyrosequencing was used to detect the methylation sites of methylation sites, flow cytometry was used to detect peripheral blood cell count levels, and non-parametric statistical methods were used to analyze the differences in detection results between the two groups.Results:The methylation level of mitochondrial MT-COI site 1 (2.21±0.81) % in the case group was less than that in the control group, and the difference was statistically significant ( P<0.05) . The methylation level of mitochondrial MT-COI site 2 (2.31±0.96%) in the case group was less than that in the control group, and the difference was statistically significant ( P<0.05) . The methylation average level of mitochondrial MT-COI (2.26±0.75) % in the case group was less than that in the control group, and the difference was statistically significant ( P<0.05) . Analysis of the average level of methylation found that the methylation level of mitochondrial MT-COI was correlated with WBC ( P<0.05) . Analysis of the average level of methylation found that the methylation level of mitochondrial MT-COI was correlated with platelets ( r=0.254、0.280, P<0.05) . Conclusion:The level of mitochondrial MT-COI gene methylation in patients with occupational chronic benzene poisoning may be related to the sensitivity to benzene exposure. Mitochondrial MT-COI gene methylation may serve as a potential predictive biomarker for benzene poisoning.

Objective:To research the mitochondrial cytochrome c oxidase subunit I (MT-COI) gene methylation levels in patients with occupational chronic benzene poisoning, and to explore effective molec μlar biomarkers in patients with occupational chronic benzene poisoning.Methods:38 confirmed cases of occupational chronic benzene poisoning were selected in the case group. 46 healthy people who underwent physical in our hospital were selected in the control group. Pyrosequencing was used to detect the methylation sites of methylation sites, flow cytometry was used to detect peripheral blood cell count levels, and non-parametric statistical methods were used to analyze the differences in detection results between the two groups.Results:The methylation level of mitochondrial MT-COI site 1 (2.21±0.81) % in the case group was less than that in the control group, and the difference was statistically significant ( P<0.05) . The methylation level of mitochondrial MT-COI site 2 (2.31±0.96%) in the case group was less than that in the control group, and the difference was statistically significant ( P<0.05) . The methylation average level of mitochondrial MT-COI (2.26±0.75) % in the case group was less than that in the control group, and the difference was statistically significant ( P<0.05) . Analysis of the average level of methylation found that the methylation level of mitochondrial MT-COI was correlated with WBC ( P<0.05) . Analysis of the average level of methylation found that the methylation level of mitochondrial MT-COI was correlated with platelets ( r=0.254、0.280, P<0.05) . Conclusion:The level of mitochondrial MT-COI gene methylation in patients with occupational chronic benzene poisoning may be related to the sensitivity to benzene exposure. Mitochondrial MT-COI gene methylation may serve as a potential predictive biomarker for benzene poisoning.

Objective:To explore the influence of online and offline family therapy based on the Satir model on emotions of adolescents with depressive disorder and their parents in remote areas.Methods:A total of 98 cases adolescents with depressive disorder treated in the psychosomatic medicine of the Second Affiliated Hospital of Nanchang University from January 2021 to June 2021 and their parents were selected as the objects. The adolescents with depressive disorder and their parents were randomly divided into the control group (49 parents and 49 adolescents) and the observation group (49 parents and 49 adolescents). The control group received the medical treatment (sertraline 100 mg/d) and the routine health education, while the observation group received the online and offline Satir family therapy on the basis of the intervention of the control group. Generalized anxiety disorder-7 (GAD-7) and patient health questionnaire-9 (PHQ-9) were used to investigate the negative emotions of the parents of the two groups before and 12 weeks after the intervention. The screen for child anxiety related emotional disorders (SCARED) and depression self-rating scale for childhood (DSRS) were used to investigate the negative emotions of the adolescents before and 12 weeks after the intervention.The SPSS 20.0 software was used for statistical analysis. t test was used to compare the SCARED scale score and DSRS score changes of the adolescents in the two groups, and χ 2 test was used to compare the proportional changes of parents' anxiety and depression. Results:The scores of SCARED (51.55±12.69 vs 36.82±7.69, t=15.839) and DSRS (25.08±4.81 vs 16.88±2.16, t=13.047) of adolescents in the control group were significantly different before and after the intervention (both P<0.05). The scores of SCARED (51.16±15.84 vs 31.31±7.72, t=14.385) and DSRS (24.12±4.81 vs 14.08±2.03, t=14.723) of adolescents in the observation group were significantly different before and after the intervention (both P<0.05). After the intervention, the scores of SCARED and DSRS in the observation group were lower than those in the control group ( t=3.540, 6.609, both P<0.05). Before intervention, there was no significant difference in the proportion of anxiety and depression between the parents of the two groups (χ 2=1.837, 3.547, both P>0.05). After 12 weeks of intervention, there was a statistically significant difference in the proportion of anxiety and depression between the two groups, which were lower in the observation group than those in the control group (χ 2=5.995, 4.009, both P<0.05). Conclusion:Online + offline family therapy based on the Satir model can not only effectively reduce anxiety and depression of adolescents, but also effectively reduce anxiety and depression of their parents.It is especially suitable for outpatient management of children with depressive disorder in remote areas.

Objective:Human leukocyte antigen(HLA)B27 is a susceptibility allele of ankylosing spondylitis(AS),and HLA-B27 antigen typing is an important indicator for clinical diagnosis of AS,but current typing methods such as sequence specific primer polymerase chain reaction(PCR-SSP)still possess limitation.Therefore,this study aims to analyze the correlation between B27 subtypes and susceptibility to AS in Hunan Province by applying high-resolution polymerase chain reaction-sequence-based typing(PCR-SBT). Methods:Peripheral blood of 116 patients with suspected AS(suspected AS group)and 121 healthy volunteers(control group)admitted to the Second Xiangya Hospital from January 2020 to December 2020 were collected for HLA-B genotyping by PCR-SBT.Among the patients in the suspected AS group,23 patients were finally diagnosed with AS(confirmed AS group),and the remaining 93 undiagnosed patients served as the non-confirmed AS group.PCR-SBT and PCR-SSP were used to detect HLA-B27 typing in 116 patients with suspected AS,and the results of the 2 methods were compared. Results:The HLA-B27 allele frequency in the suspected AS group was significantly higher than that in the control group[11.63%vs 2.48%;P<0.001,odds ratio(OR)=5.18,95%confidence interval(CI)2.097 to 12.795].B*27:04,B*27:05,B*27:06,and B*27:07 were detected in the suspected AS group and the control group.The frequency of the B*27:04 allele in the suspected AS group was significantly higher than that in the control group(9.48%vs 1.24%;P<0.001,OR=8.346,95%CI 2.463 to 28.282).The positive rate of B27 in the suspected AS group and the confirmed AS group(B27+/+ and B27+/-)was significantly higher than that in the control group(χ2=16.579,P<0.001;χ2=94.582,P<0.001,respectively).Among the confirmed AS group,21 were HLA-B27 carriers,and the B27 positive rate in the confirmed AS group was 91.3%.PCR-SBT could achieve high resolution typing of the HLA-B gene locus,with higher sensitivity,specificity,positive predictive value,negative predictive value,and accuracy than PCR-SSP. Conclusion:PCR-SBT typing analysis shows a strong correlation between HLA-B * 27:04 and AS in Hunan province.The PCR-SBT method can be used as the preferred option for the auxiliary diagnosis of clinical AS.

Objective: To introduce a method for calibrating the conversion from CT Hounsfield units (HU) to relative stopping power (RSP) for proton therapy, and improve the precision of the conversion in the region for adipose tissues. Methods: The HU and RSP values of human tissues were calculated by a stoichiometric calibration method. Animal tissue was used to simulate subcutaneous adipose tissue of patients, and the HU and RSP of the animal tissue were measured. The effect of subcutaneous adipose tissue on conversion between HU and RSP were analyzed by piecewise fitting. Results: The precision of conversion curve was improved significantly with the measured HU and RSP of adipose tissue in the fitting. The effect caused by different choice in different ionization energy was less than 0.6%, and the effect of proton energy differential was less than 0.8%. Conclusions The precision of conversion curve for the transformation of HU into RSP in adipose tissues could be improved by taking subcutaneous adipose tissue into account, which would reduce the range error of proton beams when such tissues are present in the target volumes or in the beam path.