Objective:To explore the mechanism of early pancreatic exocrine function changes in severely scalded rats.Methods:The experimental research methods was used. Eighty male Sprague-Dawley rats aged 7-8 weeks were divided into simple sham injury group ( n=8), sham injury+cholecystokinin octapeptide (CCK8) group ( n=8), severe scald+CCK8 group ( n=32), and extremely severe scald+CCK8 group ( n=32) by the random number table, which were treated accordingly. Immediately after injury of rats in the 2 sham injury groups and 1, 2, 3, and 7 days after injury of rats in the 2 scald groups, the improved methods including pancreatic duct puncture and catheterization were used to dynamically collect the pancreatic-bile juice (PBJ) of rats. The PBJ secretory volume within 1 h was recorded, and the content of pancreatic lipase, α-amylase, and trypsin in PBJ was detected by enzyme-linked immunosorbent assay (ELISA), and the number of samples was 8. The femoral venous blood was collected, and the concentrations of pancreatic lipase and α-amylase in serum were detected by standard colorimetry to reflect their activity ( n=8). The pancreatic tissue was extracted, and the levels of interleukin-1β (IL-1β) and IL-6 in pancreatic tissue were detected by ELISA ( n=8), the expression of hypoxia-inducible factor 1α (HIF-1α) in pancreatic tissue was detected by immunofluorescence method, and the histopathological changes in pancreatic tissue were observed by hematoxylin-eosin staining, the severity of pancreatic tissue injury in the 2 scald groups was evaluated by modified Schmidt method ( n=6), and the ultrastructure of acinar cells in pancreatic tissue was observed by transmission electron microscopy. Data were statistically analyzed with analysis of variance for factorial design, Tukey test, independent sample t test, and least significant difference test. Results:Compared with the PBJ secretory volume (0.740±0.030) mL in the pancreatic tissue of rats in simple sham injury group within 1 h immediately after injury, the (0.823±0.033) mL in sham injury+CCK8 group was significantly increased ( t=4.92, P<0.05). Compared with that of rats in sham injury+CCK8 group immediately after injury, the PBJ secretory volume of rats within 1 h in severe scald+CCK8 group ((0.681±0.024), (0.608±0.056), (0.525±0.025), and (0.720±0.044) mL) and extremely severe scald+CCK8 group ((0.540±0.025), (0.406±0.021), (0.475±0.036), and (0.690±0.018) mL) was significantly decreased on 1, 2, 3, and 7 days after injury ( P<0.05). Compared with that in severe scald+CCK8 group, the PBJ secretory volume of rats within 1 h in extremely severe scald+CCK8 group was significantly decreased on 1 and 2 days after injury ( P<0.05). Compared with that of rats in simple sham injury group immediately after injury, the content of pancreatic lipase, α-amylase, and trypsin in PBJ of rats in sham injury+CCK8 group immediately after injury was significantly increased (with t values of 4.56, 3.30, and 4.99, respectively, P<0.05). Compared with that of rats in sham injury+CCK8 group immediately after injury, the content of pancreatic lipase and α-amylase in PBJ of rats in severe scald+CCK8 group and extremely severe scald+CCK8 group was significantly decreased on 1, 2, 3, and 7 days after injury ( P<0.05), the trypsin content in PBJ of rats in extremely severe scald+CCK8 group was significantly decreased on 2 days after injury ( P<0.05). Compared with that in severe scald+CCK8 group, the content of pancreatic lipase in PBJ of rats in extremely severe scald+CCK8 group was significantly decreased on 1, 2, and 3 days after injury ( P<0.05), and the content of α-amylase and trypsin in PBJ was significantly decreased on 1 and 2 days after injury ( P<0.05). There were no statistically significant differences in the activities of pancreatic lipase and α-amylase in serum of rats among the 4 groups at various time points after injury ( P>0.05). Compared with that of rats in sham injury+CCK8 group immediately after injury, the levels of IL-1β in pancreatic tissue of rats in severe scald+CCK8 group on 1, 2, and 3 days after injury and in extremely severe scald+CCK8 group on 1, 2, 3, and 7 days after injury were significantly increased ( P<0.05), and the levels of IL-6 in pancreatic tissue of rats in severe scald+CCK8 group and extremely severe scald+CCK8 group were significantly increased on 1, 2, 3, and 7 days after injury ( P<0.05). Compared with that in severe scald+CCK8 group, the IL-1β level in pancreatic tissue of rats in extremely severe scald+CCK8 group was significantly increased on 2 and 3 days after injury ( P<0.05), and IL-6 level in pancreatic tissue was significantly increased on 2 days after injury ( P<0.05). The expression levels of HIF-1α in pancreatic tissue of rats in simple sham injury group and sham injury+CCK8 group immediately after injury were lower; and compared with that in sham injury+CCK8 group immediately after injury, the expression levels of HIF-1α in pancreatic tissue of rats in the 2 scald groups increased to a certain extent at different time points after injury, and the expression position was transited from the edge of the pancreatic tissue to the whole pancreas, the expression levels of HIF-1α in pancreatic tissue of rats in the 2 scald groups tended to be normal on 7 days after injury. Compared with that in simple sham injury group immediately after injury, the proportion of acinar cell cytoplasm in pancreatic tissue of rats in sham injury+CCK8 group was increased; and with the increase of time after injury, edema, hemorrhage, necrosis, and inflammatory infiltration appeared in pancreatic tissue of rats in the 2 scald groups. Compared with that in severe scald+CCK8 group, the scores of edema, inflammatory cell infiltration, bleeding, and necrosis in pancreatic tissue of rats in extremely severe scald+CCK8 group were increased to varying degrees at various time points after injury, and the scores of pancreatic tissue of rats in the 2 scald groups basically recovered to normal on 7 days after injury. Compared with that in simple sham injury group immediately after injury, the number of enzyme granules in acinar cells of pancreatic tissue of rats in sham injury+CCK8 group was increased, and with the increase of time after injury, the enzyme granules in acinar cells of rats in the 2 scald groups were gradually reduced basically. Conclusions:The exocrine functions of pancreas, such as synthesis and secretion of pancreatic enzymes, are decreased in the early stage in severely scalded rats. And the greater the scalded area, the more significant the decline of pancreatic exocrine function. This change may be related to hypoxic injury and inflammation in pancreatic tissue after severe scald.

ObjectiveTo investigate the current situation of personality traits and job satisfaction of pediatric therapists in Jiangsu province, and to explore the correlation between them and the related factors of job satisfaction. MethodsFrom June, 2021 to February, 2022, random cluster sampling method was adopted after field investigating several pediatric hospitals and institutions in Jiangsu. Online questionnaires were sent out to pediatric therapists in different settings in eleven cities in Jiangsu. The questionnaires included Minnesota Satisfaction Questionnaire (MSQ), Eysenck Personality Questionnaire-Revised Short Scale for Chinese (EPQ-RSC) and self-made scale of demographic characteristics and working status. ResultsAll of the questionaires were taken back, in which 165 were valid (83.33%). Among the three dimensions of psychoticism, extraversion and neuroticism, the intermediate type accounted for 66.06%, 38.79% and 40.00%, respectively. The overall satisfaction of job was (3.80±0.55), the internal satisfaction was (3.88±0.53), and the external satisfaction was (3.59±0.69). There was significant difference in the satisfaction among different types of work institution, monthly incomes, levels of parental support and neuroticism (P < 0.05). Multiple linear regression showed that the internal satisfaction and overall satisfaction were related with neuroticism, monthly income and parental support (P < 0.05), while external satisfaction was related with the neuroticism and parental support (P < 0.05). The level of neuroticism was negatively correlated with the internal satisfaction, the external satisfaction and overall satisfaction (|r| > 0.337, P < 0.001), and the level of extraversion was postively correlated with the external satisfaction (r = 0.155, P < 0.05). ConclusionThe job satisfaction of pediatric therapists is fine in Jiangsu, and is ralated with the level of neuroticism, the monthly income and the level of parental support. The levels of neuroticism and extraversion correlate with the job satisfaction.

Objective: To explore the clinical effect of Shufeng Tongqiao and Yifei Jianpi prescription in the treatment of allergic rhinitis. Methods: From September 2015 to October 2017, 60 patients with allergic rhinitis in the Traditional Chinese Medicine Hospital of Tongxiang were selected according to include and exclude standards.The patients were randomly divided into two groups according to the digital table, with 30 cases in each group.The control group was treated with conventional western medicine: loratadine tablets combined with budesonide nasal spray.The treatment group was given traditional Chinese medicine on the basis of the control group.Before and after treatment, the nasal congestion, runny nose, nasal itching, sneezing four indicators were recorded in the two groups.And nasal discharge, tears flowed pharyngeal from eye pain, oral cavity on the forehead, nose, or pain, headache, five secondary indicators, as well as in the case of a change rhinitis, quality of life questionnaire were collected.The data were statistically analyzed. Results: Before treatment, there were no statistically significant differences in the main symptoms, secondary symptoms, serum IgE and quality of life between the two groups (all P>0.05). After 3 months of treatment, all the indicators in the two groups were significantly improved compared with those before treatment, and the differences were statistically significant (all P<0.05). In addition, the improvement of main symptoms and serum IgE in the treatment group were better than those in the control group, and the differences were statistically significant (z/t=-2.708, -2.033, -3.757, -2.208, -2.432; P=0.007, 0.042, 0.000, 0.027, 0.018), but there were no statistically significant differences between the two groups in terms of subtypes and quality of life improvement (P=0.488, 0.448, 0.519, 0.228, 0.278, 0.338). After 1 year of follow-up, the mean scores of each group were analyzed and compared.The indicators in the treatment group showed a different degree of recovery after 3 months of treatment.However, compared with before treatment, the indicators were still significantly improved.The scores of nasal obstruction, runny nose, nasal itching, sneezing, quality of life, and serum IgE in the treatment group were (1.13±0.81)points, (1.00±0.94)points, (0.93±0.74)points, (1.00±0.74)points, (6.13±2.30)points, (92.23±12.55)points, compared with those before treatment, the differences were statistically significant (t/z=-5.575, -5.222, -6.281, -5.918, 5.633, 9.199, all P<0.01). Compared with the control group, all indicators were significantly better, the differences were statistically significant (z/t=-2.388, -2.390, -2.738, -2.350, 4.800, 4.022, 4.444, 4.356, 5.934, -2.023, -4.381; P=0.017, 0.017, 0.006, 0.019, 0.028, 0.045, 0.035, 0.037, 0.015, 0.048, 0.000). After 3 months of clinical treatment and 1 year follow-up analysis, the total effective rate of the treatment group was 93.3%, that of the control group was 86.7%, the difference between the two groups was statistically significant (Z=-2.221, P=0.026). Conclusion The clinical efficacy of Shufeng Tongqiao and Yifei Jianpi prescription combined with western medicine in the treatment of allergic rhinitis is more significant than conventional western medicine alone, and the long-term efficacy is significant, which can effectively reduce the symptoms of patients, improve the quality of life of patients, and significantly reduce the level of serum IgE.

Obj ective To explore the value of renal artery (RA)hemodynamic changes in assessment of women with pregnancy-induced hypertension syndrome (PIH)and fetal growth re-striction (FGR).Methods 57 pregnant women with PIH and FGR and 57 normal pregnancy were examined by peak systolic flow velocity (Vmax),peak diastolic flow velocity (Vd),the average peak blood flow velocity cardiac cycle (Tamax),pulse rhythm(PI),resistance index(RI),the ratio (S/D)maximum blood flow speed during umbilical artery systole and diastole telophase.Results Vmax of fetal renal artery flow in the control group had a positive relationship with gestational age, and RI、PI、S/D showed a slow downward trend.Vmax and S/D of RA in pregnant women with PIH and FGR were significantly lower than those of the control group (P<0.001).Conclusion Normal fetal RA blood flow velocity is positively correlated with gestational age.The Vmax of RA<1 1 cm/s in pregnant women with PIH and FGR may predict a poor prognosis in fetal.

Obj ective To explore the value of renal artery (RA)hemodynamic changes in assessment of women with pregnancy-induced hypertension syndrome (PIH)and fetal growth re-striction (FGR).Methods 57 pregnant women with PIH and FGR and 57 normal pregnancy were examined by peak systolic flow velocity (Vmax),peak diastolic flow velocity (Vd),the average peak blood flow velocity cardiac cycle (Tamax),pulse rhythm(PI),resistance index(RI),the ratio (S/D)maximum blood flow speed during umbilical artery systole and diastole telophase.Results Vmax of fetal renal artery flow in the control group had a positive relationship with gestational age, and RI、PI、S/D showed a slow downward trend.Vmax and S/D of RA in pregnant women with PIH and FGR were significantly lower than those of the control group (P<0.001).Conclusion Normal fetal RA blood flow velocity is positively correlated with gestational age.The Vmax of RA<1 1 cm/s in pregnant women with PIH and FGR may predict a poor prognosis in fetal.

Objective To explore the pregnancy outcome and obstetric management of pregnancy and delivery after vaginal radical trachelectomy (VRT).Methods Forty-two cases of VRT from December 2003 to May 2012 in Peking Union Medical College Hospital were analyzed retrospectively.Among them ten cases got pregnant successfully.Results The average age of patient at VRT surgery was (30.6 ± 3.7) years old and average follow-up time was 29.5 months.There were 31 patients attempted conception.Ten of them got fourteen conceptions successfully.Overall conception rate was 45％ (14/31).There were four cases of first trimester abortion.Among them,two were miscarriage,two were elective abortion.There was one case of ectopic pregnancy operation and non of second trimester loss.Nine cases reached the third trimester.The total preterm delivery rate was 4/9.There were two cases delivered before 32 gestational weeks (2/9).Cesarean section was performed through a transverse incision in all of nine cases.No uterine rupture and postpartum hemorrhage occurred.All newborns had good outcomes.The average follow-up time after postpartum was 22.9 months.All cases were disease-free.Conclusions The conception rate of patients after VRT in our series is 45％.The preterm birth rate of pregnancy after VRT is higher.Routine cerclage of cervix during VRT procedure and pregnancy is not necessary.Cesarean section shortly after full term pregnancy through a transverse incision should be considered as a suitable and safe procedure.

Objective To investigate the causes of death and the influencing factors in patients with peripheral arterial disease(PAD) during the perioperative period and reduce the perioperative mortality.Methods A retrospective analysis of the causes of death was performed for PAD during the perioperative period in our hospital from July 2005 to July 2010. Results Nine patients died preoperatively.The causes of death were multible organ failure in 5,heart failure in 2,sudden cardiac death in 1,and respiratory failure in 1.Six patients died postoperatively.The causes of death were acute renal failure in 2,heart failure in 2,cerebral infarction in 1,and hemorrhagic shock in 1.The causes of death which were related to heart,kidney and lung were in 10,6 and 2,respectively.The causes of death which were directly due to heart failure,sudden cardiac death,renal failure,respiratory failure,cerebral infarction and hemorrhagic shock were in 4,1,2,1,1 and 1,respectively.The main causes of death were multible organ failure,heart failure and acute renal failure,which accounted for 73.33％ of all deaths.In this series the overall perioperative mortality was 3.11％ (15/483),Operative mortality was 1.47％ (6/407).Conclusions The influencing factors and the function of organs were closely correlated with the causes of death. To reduce the perioperative mortality of PAD,it is necessary both to intervene in the influencing factors and to monitor and treat the dysfunction of vital organs.

In order to test the performance of wall filters, we propose a method for simulation of Hybrid Doppler testing signal, which adopts a rectangular power spectrum. In the method, the parameters of clutter, blood flow and system noise can be adjusted with flexibility. The problem about choosing model parameters is discussed as an emphasis. Several reasonable and typical parameter combination patterns are presented. Furthermore, an example is given to explain the process of choosing the parameters and testing the wall filter performance.
Blood Flow Velocity ; physiology ; Computer Simulation ; Humans ; Rheology ; instrumentation ; methods ; Signal Processing, Computer-Assisted ; Ultrasonography, Doppler, Color ; instrumentation ; methods

In color flow imaging systems, the ultrasound Doppler signal scattered from blood is heavily corrupted by the strong clutter signal reflected from the slow-moving muscular tissue. Moving target indicator (MTI) is a key technique of rejecting the clutter signal and detecting blood flow. To improve the performance of detecting blood flow, a new MTI scheme is proposed in this paper. It consists of a pre-filter, a clutter weak-rejector and a 2-order AR estimator. After the processing of pre-filtering and clutter weak-rejection, the strong clutter signal is effectively eliminated and its strength is comparable with blood flow. Under such condition, the optimal performance can be attained by the 2-order AR estimator. It is illustrated in the simulation that, compared with the data from traditional methods, the blood flow parameters are estimated with smaller deviation and the lower speed flow is detected.
Blood Flow Velocity ; Equipment Design ; Humans ; Image Interpretation, Computer-Assisted ; instrumentation ; methods ; Ultrasonography, Doppler, Color ; instrumentation ; methods

To investigate the kinetic expression of cytokine in allografts in rats and the effect of hydrocamptothecin on such expression, syngenic and allogenic heart transplantation models were developed. Recipient rats were divided into 3 groups: group A, SD-SD; group B, Wistar-SD group C,Wistar-SD plus treatment with HPCT 2. Omg/(kg ?d). The grafts and spleens were harvested on days 1, 3, 5, 7, and 14 post-transplantation for morphology and RT-PCR detecting the expressions of IL-2, IFN-?, IL-4, IL-10 mRNA. The results showed that the cytokine generally increased commensurately with the infiltration of this leukocyte population. The cytokine mRNA transcript could be detected on days 1 and 3 after transplantation in group A. The IL-2 and IFN-? mRNA transcript could be detected on days 1, 3, 5, 7 and 14 with a peak on day 7 in group B, but on day 3 in group C. The IL-4 and IL-10 mRNA transcript could be detected on days 1,3,5,7 and 14 with a peak on day 5 in group B, while on day 7 in group C. The levels of IL-2 IFN-? mRNA expression were significantly lower in grafts of group C than those in grafts of group B, whereas the levels of IL-4 and IL-10 mRNA were significantly higer in grafts of group C than those in grafts of group B. The level of cytokine mRNA expression in the grafts was similar to that of spleen of recipients. Our conculssion is the expression of cytokine mRNA in allografts can be detected on day 1 after transplantation ,with peaking of IL-2 and IFN-? on day 7, IL-4 and IL-10 on day 5. The survival time of allograft can be prolonged by HCPT. The levels of IL-2 and IFN-? mRNA expression can be reduced, while the levels of IL-4 and IL-10 mRNA expression be enhanced by HCPT.