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Objective@#To investigate the relationship between workplace bullying and posttraumatic stress disorder (PTSD) in nursing staff, and to analyze the role of psychological capital between workplace bullying and PTSD.@*Methods@#From December 2014 to June 2015, convenience sampling was used to collect 496 nurses from 5 grade A tertiary hospitals in a province of China. Their workplace bullying, psychological capital, and PTSD status were assessed using the Negative Acts Questionnaire, Psychological Capital Questionnaire, and Posttraumatic Stress Disorder Self-Rating Scale, respectively. The correlation between variables was analyzed using a structural equation model.@*Results@#Among these nurses, the scores of negative acts, psychological capital, and PTSD were 37.15±12.83, 78.81±16.54, and 34.56±12.52, respectively. The score on each dimension of negative acts was positively correlated with that on each dimension of PTSD (P<0.01) ; the score on each dimension of psychological capital was negatively correlated with that on each dimension of PTSD and negative acts (P<0.01). Negative acts had a positive predictive effect on PTSD (β=0.539, P<0.01) , which was reduced after inclusion of psychological capital (β=0.513, P<0.01). The path coefficient was 0.62 for the effect of negative acts on PTSD, -0.18 for the effect of negative acts on psychological capital, and -0.11 for the effect of psychological capital on PTSD (P<0.05) .@*Conclusion@#Workplace bullying is a predictive factor for PTSD, and psychological capital plays a mediating role between workplace bullying and PTSD. The manager should reduce workplace bullying to improve the psychological capital in nursing staff and to prevent and reduce PTSD.
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Objective To investigate the relationship of serum 25-hydroxyvitamin D [25(OH)D] level and blood glucose control in patients with type 2 diabetes mellitus (T2DM).Methods The clinical data of 300 pa-tients with T2DM in the hospital were analyzed retrospectively.According to the level of glycated hemoglobin (HbA1c) ,the patients were divided into the good control of blood glucose group (＜6.5%) ,the medium con-trol of blood glucose group (6.5% -7.5%) and the poor control of blood glucose group (＞7.5%).Another 44 healthy individuals with normal glucose tolerance (NGT) confirmed by oral glucose tolerance test (OGT T) were selected as normal control group.The level of 25(OH)D in each group was compared ,and the correlation between HbA1c and 25(OH)D was analyzed.Results The level of serum 25(OH)D in the poor control of blood glucose group was significantly lower than that in the good control of blood glucose group and the con-trol group ,and the difference was statistically significant (P＜0.05) ;the levels of serum 25(OH)D in the the medium and good control of blood glucose groups were significantly lower than that in the control group (P＜0.05).HbA1c was negatively correlated with 25 (OH) D level (r= -0.212 ,P=0.000).Conclusion The level of serum 25 (OH) D is related to the development of T2DM.Proper vitamin D supplementation can be used as an adjuvant therapy for T 2DM.
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Objective To explore the relationship between posttraumatic stress disorder and nurses′ psychological capital. Methods By convenient sampling, totally 550 nurses in 5 first-class upper level general hospitals in Zhejiang province were investigated by the posttraumatic stress disorder (PTSD)Cheeklist-Civilan Version (PCL-C) and Nurses Psychological Capital Questionnaire Revision (NPCQR), and the results were analyzed. Results 18.35%investigated nurses showed a certain degree of PTSD symptoms and 13.71% showed obvious PTSD symptoms. The positive rate was 32.06%.The overall score of nurses′psychological capital was 78.81 ± 16.54, which was in the middle level, and the dimension scores from high to low were self-efficacy (23.80±5.35), hope (23.36±5.24), resilience (19.66 ±4.29), and optimism (11.99 ± 3.21). The nurses′psychological capital had a negative effect on posttraumatic stress disorder (P<0.01). Conclusions Psychological capital of nurses is a negative predictor of PTSD symptoms, which suggested that managers should pay more attention to the development of nurses′psychological capital to reduce and prevent the occurrence of posttraumatic stress disorder,then to improve nursing service quality.
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Objective To evaluate the effect of dexmedetomidine on pulmonary microvascular en-dothelial cell(PMVEC)injury induced by the serum of mice with renal ischemia-reperfusion(I∕R)injury. Methods Renal I∕R was induced by clamping bilateral renal pedicles for 60 min followed by 24 h of reper-fusion. Primary PMVECs of mice were divided into 3 groups(n=20 each)using a random number table:control group(group C), serum of mice underwent I∕R group(group I∕R)and dexmedetomidine group (group Dex). PMVECs were cultured with 10% serum of mice underwent sham operation in group C. PM-VECs were cultured with 10% serum of mice underwent I∕R injury in group I∕R. PMVECs were incubated for 3 h with dexmedetomidine at the final concentration of 0.1 μmol∕L before incubation with serum in group Dex. At 24 h of culture or incubation, the cell survival rate was detected by CCK8 assay, cell apoptosis by Hoechst 33258 staining, caspase-3 activity using colorimetric method, and the expression of Bcl-2 and Bax using Western blot. Results Compared with group C, the cell survival rate was significantly decreased, the apoptosis rate and activity of caspase-3 were increased, the expression of Bcl-2 was down-regulated, and the expression of Bax was up-regulated in I∕R and Dex groups(P<0.01). Compared with group I∕R, the cell survival rate was significantly increased, the apoptosis rate and activity of caspase-3 were de-creased, the expression of Bcl-2 was up-regulated, and the expression of Bax was down-regulated in group Dex(P<0.01). Conclusion Dexmedetomidine can reduce PMVEC injury induced by the serum of mice with renal I∕R injury, and the mechanism is related to regulating the expression of Bcl-2 and Bax and inhib-iting mitochondrial apoptosis pathway.
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Objective To explore the value of contrast-enhanced ultrasound in the diagnosis and classification of traumatic spleen rupture , as compared with enhanced CT. Methods The manifestations of contrast-enhanced ultrasound on surgically or clinically confirmed spleen rupture in 40 patients were retrospectively analyzed. The performance of contrast-enhanced ultrasound on diagnosis and classification was compared with that of enhanced CT. Results For 40 patients with traumatic spleen rupture , the of accuracy of enhanced CT and contrast-enhanced imaging in the diagnosis of traumatic spleen rupture was 97.5%, with no significant statistical differences (chi-square = 0, P = 1). On contrast-enhanced ultrasound examination, 14 patients were diagnosed as true splenic rupture , 9 as subcapsular spleen rupture , and 16 as central splenicrupture, with a accuracy rate of 92.5% (37/40); and accuracy rate for enhanced CT was 90.0% (36/40), there was no significant statistical difference (chi-square = 1.97, P > 0.05). Conclusions Contrast-enhanced and enhanced CT have good consistency in the diagnosis and classification of traumatic spleen rupture. Contrast-enhanced ultrasound can accurately determine the scope and degree of spleen damage , resulting in more accurate classification; and it has values in the diagnosis of traumatic spleen rupture and choice of therapies.
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Objective To establish normal reference interval for four items of blood coagulation on ACL‐TOP Automatic coagu‐lation analyzer .Methods The fasting anti‐coagulation blood samples were collected from 1 268 inpatients and people conducted physical examination ,all subjects without liver disease ,history of blood disease and coagulation disfunction .The prothrombin time (PT) ,activated partical prothrombin time(APTT) ,thrombin time(TT) and serum levels of fibrinogen(FIB) were determined by u‐sing ACL‐TOP automatic coagulation analyzer which was producted by America IL company .And data of determination results were used to establish the normal reference intervals of indexes in this laboratory .Results The precision and accuracy of this analy‐zer was good .There were differences of normal reference intervals between which established in this laboratory and which provided by the manufacturer .Conclusion Each laboratory should establish its own normal reference interval ,not blindly refer to reference interval provided by regents manual .