OBJECTIVE: To observe the characteristics of changes in non-invasive hemodynamic parameters in neonates with septic shock so as to provide clinical reference for diagnosis and treatment. METHODS: A observational study was conducted. The neonates with sepsis complicated with septic shock or not admitted to neonatal intensive care unit (NICU) of the First Affiliated Hospital of Shantou University Medical College were enrolled as the study subjects, who were divided into preterm infant (< 37 weeks) and full-term infant (≥ 37 weeks) according to the gestational age. Healthy full-term infants and hemodynamically stable preterm infants transferring to NICU after birth were enrolled as controls. Electronic cardiometry (EC) was used to measure hemodynamic parameters, including heart rate (HR), mean arterial pressure (MAP), stroke volume (SV), stroke volume index (SVI), cardiac output (CO), cardiac index (CI), systemic vascular resistance (SVR) and systemic vascular resistance index (SVRI), before treatment in the septic shock group, at the time of diagnosis of sepsis in the sepsis without shock group, and before the discharge from the obstetric department or on the day of transferring to NICU in the control group. RESULTS: Finally, 113 neonates with complete data and parental consent for non-invasive hemodynamic monitoring were enrolled, including 32 cases in the septic shock group, 25 cases in the sepsis without shock group and 56 cases in the control group. In the septic shock group, there were 17 cases at the compensated stage and 15 cases at the decompensated stage. There were 21 full-term infants (20 cured or improved and 1 died) and 11 premature infants (7 cured or improved and 4 died), with the mortality of 15.62% (5/32). There were 18 full-term infants and 7 premature infants in the sepsis without shock group and all cured or improved without death. The control group included 28 full-term infants and 28 premature infants transferring to NICU after birth. Non-invasive hemodynamic parameter analysis showed that SV, SVI, CO and CI of full-term infants in the septic shock group were significantly lower than those in the sepsis without shock group and control group [SV (mL): 3.52±0.99 vs. 5.79±1.32, 5.22±1.02, SVI (mL/m²): 16.80 (15.05, 19.65) vs. 27.00 (22.00, 32.00), 27.00 (23.00, 29.75), CO (L/min): 0.52±0.17 vs. 0.80±0.14, 0.72±0.12, CI (mL×s^-1×m^-2): 40.00 (36.67, 49.18) vs. 62.51 (56.34, 70.85), 60.01 (53.34, 69.68), all P < 0.05], while SVR and SVRI were significantly higher than those in the sepsis without shock group and control group [SVR (kPa×s×L^-1): 773.46±291.96 vs. 524.17±84.76, 549.38±72.36, SVRI (kPa×s×L^-1×m^-2): 149.27±51.76 vs. 108.12±12.66, 107.81±11.87, all P < 0.05]. MAP, SV, SVI, CO and CI of preterm infants in the septic shock group were significantly lower than those in the control group [MAP (mmHg, 1 mmHg ≈ 0.133 kPa): 38.55±10.48 vs. 47.46±2.85, SV (mL): 2.45 (1.36, 3.58) vs. 3.96 (3.56, 4.49), SVI (mL/m²): 17.60 (14.20, 25.00) vs. 25.50 (24.00, 29.00), CO (L/min): 0.32 (0.24, 0.63) vs. 0.56 (0.49, 0.63), CI (mL×s^-1×m^-2): 40.01 (33.34, 53.34) vs. 61.68 (56.68, 63.35), all P < 0.05], while SVR and SVRI were similar to the control group [SVR (kPa×s×L^-1): 1 082.88±689.39 vs. 656.63±118.83, SVRI (kPa×s×L^-1×m^-2): 126.00±61.50 vs. 102.37±11.68, both P > 0.05]. Further analysis showed that SV, SVI and CI of neonates at the compensation stage in the septic shock group were significantly lower than those in the control group [SV (mL): 3.60±1.29 vs. 4.73±1.15, SVI (mL/m²): 19.20±8.33 vs. 26.34±3.91, CI (mL×s^-1×m^-2): 46.51±20.34 vs. 61.01±7.67, all P < 0.05], while MAP, SVR and SVRI were significantly higher than those in the control group [MAP (mmHg): 52.06±8.61 vs. 48.54±3.21, SVR (kPa×s×L^-1): 874.95±318.70 vs. 603.01±111.49, SVRI (kPa×s×L^-1×m^-2): 165.07±54.90 vs. 105.09±11.99, all P < 0.05]; MAP, SV, SVI, CO and CI of neonates at the decompensated stage in the septic shock group were significantly lower than those in the control group [MAP (mmHg): 35.13±6.08 vs. 48.54±3.21, SV (mL): 2.89±1.17 vs. 4.73±1.15, SVI (mL/m²): 18.50±4.99 vs. 26.34±3.91, CO (L/min): 0.41±0.19 vs. 0.65±0.15, CI (mL×s^-1×m^-2): 43.34±14.17 vs. 61.01±7.67, all P < 0.05], while SVR and SVRI were similar to the control group [SVR (kPa×s×L^-1): 885.49±628.04 vs. 603.01±111.49, SVRI (kPa×s×L^-1×m^-2): 114.29±43.54 vs. 105.09±11.99, both P > 0.05]. CONCLUSIONS Full-term infant with septic shock exhibit a low cardiac output, high vascular resistance hemodynamic pattern, while preterm infant with septic shock show low cardiac output and normal vascular resistance. At the compensated stage the hemodynamic change is low output and high resistance type, while at the decompensated stage it is low output and normal resistance type. Non-invasive hemodynamic monitoring can assist in the identification of neonatal septic shock and provide basis for clinical diagnosis and treatment.
Humans ; Shock, Septic/physiopathology* ; Infant, Newborn ; Hemodynamics ; Female ; Male ; Case-Control Studies ; Infant, Premature

Social assistance robots are multi-functional robots integrating science and technology, psychology and medical services, which can provide care according to the needs of different groups. This article reviews the concept, role and function of social assistance robots and their application status in care for the elderly frail population, analyzes the existing problems and countermeasures of social assistance robots in care for the elderly frail population, in order to promote the application of social assistance robots in the elderly frail population in China and enrich the nursing intervention programs for the elderly frail population.

Objective:To analyze the effects of different dose calculation grid size of Monaco system on the physical and biological dosimetry of target area and organ at risk (OAR) in T 4 nasopharyngeal carcinoma. Methods:A total of 18 patients with stage T 4 nasopharyngeal carcinoma who received radiotherapy in the Department of Radiotherapy of Yunnan Cancer Hospital from October 2020 to April 2022 were selected to complete the delineation of target areas and OAR in the Monaco 5.11.03 system, and the volumetric intensity modulated arc therapy (VMAT) plan was developed on the 3 mm grid with the optimization mode of target area priority. The 3 mm grid group plan was replicated without changing any other parameters, and the physical plan was re-established on the 1, 2, 4 and 5 mm grids, and then the five plans were normalized to the prescription dose to cover 95% of the target volume. The planning time, D 2%, D 50%, D 98%, conformity index (CI), homogeneity index (HI), gradient index (GI), tumor control probability (TCP), D 2% and D mean of important OAR around the target area were calculated and statistically analyzed. Results:Planning primary tumor gross target volume (PGTVp) : The D 2% of 1, 2, 3, 4 and 5 mm groups were (76.94±0.66), (75.98±0.76), (75.56±0.67), (75.67±0.73) and (75.94±0.85) Gy, respectively, with a statistically significant difference ( F=9.86, P<0.001). The CI of 1, 2, 3, 4 and 5 mm groups were 0.75±0.05, 0.78±0.04, 0.78±0.05, 0.79±0.04 and 0.78±0.04, respectively, with a statistically significant difference ( F=2.61, P=0.041). There were statistically significant differences in D 50%, D 98%, HI, equivalent uniform dose (EUD) and tumor control probability (TCP) among the groups ( H=17.14, P=0.002; F=9.35, P<0.001; H=25.43, P<0.001; F=5.85, P<0.001; H=17.65, P=0.001). There was no statistically significant difference in GI among the groups ( P>0.05). Pairwise comparison showed that D 2% in 2, 3, 4, 5 mm groups compared with 1 mm group, D 50% in 5 mm group compared with 2, 3 mm groups, D 98% in 4 mm group compared with 1, 2 mm groups, D 98% in 5 mm group compared with 1, 2, 3 mm groups, CI in 5 mm group compared with 1 mm group, HI in 2, 3, 4, 5 mm groups compared with 1 mm group, EUD in 3 mm group was compared with 1 mm group, EUD in 5 mm group compared with 2, 3 mm groups, TCP in 3 mm group compared with 1 mm group, and TCP in 5 mm group compared with 3 mm group, there were statistically significant differences (all P<0.05). Planning nodal gross target volume (PGTVn) : The D 2% of 1, 2, 3, 4 and 5 mm groups were (76.36±0.59), (75.36±0.62), (75.04±0.68), (75.25±0.72) and (75.39±0.77) Gy, respectively, with a statistically significant difference ( F=10.32, P<0.001). The HI of 1, 2, 3, 4 and 5 mm groups were 1.08 (1.08, 1.08), 1.07 (1.06, 1.07), 1.06 (1.06, 1.07), 1.06 (1.06, 1.07), 1.06 (1.06, 1.07), 1.06 (1.06, 1.08), respectively, with a statistically significant difference ( H=22.00, P<0.001) ; There were statistically significant differences in D 50%, D 98% and EUD among the groups ( H=11.79, P=0.019; H=20.49, P<0.001; F=12.14, P=0.016). Pairwise comparison showed that there were statistically significant differences in D 2% between 2, 3, 4, 5 mm groups and 1 mm group, D 98% between 4 mm group and 1 mm group, D 98% between 5 mm group and 1, 2 mm groups, HI between 2, 3, 4 mm groups and 1 mm group, and EUD between 3 mm group and 1 mm group (all P<0.05). Planning primary tumor clinical target volume 1 (PCTVp1) : The D 2% of 1, 2, 3, 4 and 5 mm groups were (76.59±0.63), (75.64±0.65), (75.64±0.98), (75.41±0.70) and (75.71±0.84) Gy, respectively, with a statistically significant difference ( F=9.53, P<0.001). The D 50% of 1, 2, 3, 4, 5 mm groups were (72.09±0.34), (71.85±0.39), (71.82±0.45), (72.04±0.56), (72.43±0.66) Gy, respectively, with a statistically significant difference ( F=4.20, P=0.019). There was no statistically significant difference in the other indexes among the groups (all P>0.05). Pairwise comparison showed that there were statistically significant differences in D 2% between 2, 3, 4, 5 mm groups and 1 mm group, and in D 50% between 2, 3 mm groups and 1 mm group (all P<0.05). Planning nodal clinical target volume 1 (PCTVn1) : There were no statistically significant differences in all indexes among the groups (all P>0.05). Planning clinical target volume 2 (PCTV2) : The D 2% of 1, 2, 3, 4 and 5 mm groups were (75.57±0.50), (74.87±0.67), (74.51±0.51), (74.61±0.63) and (75.00±0.74) Gy, respectively, with a statistically significant difference ( F=8.27, P<0.001). Pairwise comparison showed that the D 2% of the 2, 3, 4 mm groups were significantly different from that of the 1 mm group (all P<0.05). The calculation time of physical plan in 1, 2, 4 and 5 mm groups was 987.00 (848.00, 1 091.00), 120.50 (99.75, 134.00), 26.00 (24.00, 34.25) and 21.50 (18.75, 34.75) s, respectively, with a statistically significant difference ( H=61.62, P<0.001). Pairwise comparison showed that there were statistically significant differences in the calculation time between 4 mm group and 1, 2 mm groups, 5 mm group and 1, 2 mm groups (all P<0.05). There was no statistically significant difference in the dosimetric parameters of OAR around the target area among the groups (all P>0.05) . Conclusion:The physical dose and biological dose of the important OAR around the target area and the target area change with the change of dose calculation grid size when formulating the physical plan of radiotherapy for T 4 nasopharyngeal carcinoma. Considering the quality of the physical plan and the calculation time, when the Monaco system formulates the VMAT plan for T 4 nasopharyngeal carcinoma patients, the plan can be optimized on the 3 mm computing grid and copied to the 1 mm computing grid for recalculation.

Objective:To explore effects of mindfulness cognitive intervention combined with team psychological training on the sleep, mental and working status of medical staff in Neurosurgery ICU.Methods:Using the cluster sampling method, a total of 42 medical staff of Neurosurgery ICU who worked in Xiangyang Central Hospital from October 2019 to October 2020 were selected as the research objects and they were given mindfulness cognitive intervention combined with team psychological training. The scores of Chinese Perceived Stress Scale (CPSS) , Maslach Burnout Inventory Human Service Survey (MBI-HSS) , SAS, SDS, Pittsburgh Sleep Quality Index (PSQI) and satisfaction of Neurosurgical ICU patients and their families were compared before and after the intervention.Results:The scores of CPSS, SAS, SDS, PSQI and MBI-HSS of 42 Neurosurgical ICU medical staff after the intervention were lower than those before the intervention, and the differences were statistically significant ( P<0.01) . After the intervention, the satisfaction rate of ICU patients and their family members was 98.25% (336/342) , higher than 91.69% (298/325) before the intervention, and the difference was statistically significant ( P<0.01) . Conclusions:Mindfulness cognition intervention combined with team psychological training can improve the sleep, psychological and working conditions of medical staff of Neurosurgery ICU, which is worthy of clinical promotion.

OBJECTIVE：To study the effects and potential mechani sm of deoxyschizandrin on the proliferation ，migration and invasion of nasopharyngeal carcinoma cell HONE- 1. METHODS ：HONE-1 cell was set as cell model ，while CCK- 8 test，wound healing assay and Transwell chamber test were used to detect the proliferation ，migration and invasion ability changes of HONE- 1 cells after treatment with different concentrations [ 0（blank control ），10，20，40 μmol/L] of deoxyschizandrin. Computer molecular docking was performed to analyze the binding ability between deoxyschizandrin and Met protein. Western blotting assay was used to detect the relative protein expressions of p-Met ，p-PI3K，p-Akt，Bcl-2 and N-cadherin in cells. RESULTS ：Compared with blank control ，the proliferation ，migration and invasion ability of cells after treated with 10，20，40 μmol/L deoxyschizandrin were all decreased significantly （P＜0.05）. Results of molecular docking revealed that deoxyschizandrin could stably bind with the activity pocket of Met protein. Results of Western blotting assay demonstrated that compared with blank control ，10，20，40 μmol/L deoxyschizandrin all decreased the relative protein expressions of p-Met ，p-PI3K，p-Akt，Bcl-2 and N-cadherin in cells significantly（P＜0.05）. CONCLUSIONS ：Deoxyschizandrin can inhibit the proliferation ，migration and invasion of HONE- 1 cell via inhibiting the activation of Met/PI 3K/Akt signaling pathway.

Objective To observe the effects of urate-lowering therapy ( ULT) on indexes of inflammation, the frequency of gout flares, compliance of ULT, and the achieved rates of serum uric acid in patients at acute stage. Methods 151 patients with acute gout flares were randomly divided into observation group ( 60 cases with ULT in the acute phase) and control group (91 cases with ULT after 2 weeks of complete remission from acute flares). Visual analogue pain scores (VAS), joint swelling scores, white blood cell counts, erythrocyte sedimentation rates (ESR), as well as high sensitive-C reactive protein (hs-CRP) were measured respectively and compared between two groups. The observation group was treated with 40 mg/d of febuxostat for 12 weeks after effectively achieved inflammation ( VAS<3 points) , while the control group was treated with the same therapy after 2 weeks of symptoms complete remission from acute gout flares. Finally, these indexes were followed and recorded, including the number of gout flares, the compliance of ULT, the changes of liver and kidney function, and the proportion of patients with serum uric acid<360μmol/L. Results There was no statistical difference in the baseline condition, VAS pain scores, joint swelling scores, white blood cell counts, ESR, and hs-CRP between two groups after different ULTs ( all P>0.05) . There was no statistical difference in the frequency of gout flares between two groups during the ULT of 12 weeks ( P=0.658) . At the end of 12 weeks, the serum uric acid in the observation group was significantly lower compared with the control group [(318.38±95.16 vs 398.12±120.13)μmol/L,P<0.01]. The compliance rate of ULT and the rate of reaching the standard of serum uric acid<360μmol/L in the observation group were higher than those in the control group ( both P<0.01) . Conclusion The treatment of ULT with patients after effective achieved of acute gout inflammation has no detrimental effects on VAS pain, joint swelling score, the conversion of inflammation index, and the number of gout flares, while improving the compliance of ULT and the achieved rate of serum uric acid.

Objective To explore the value of endothelial dysfunction assessment in predicating major adverse cardiac and cerebrovascular events (MACCE) in peritoneal dialysis (PD) patients.Methods A prospective cohort study included 136 end stage renal disease (ESRD) patients from Jan 1,2009 to Dec 31,2011 was conducted.Endothelial function was assessed by flowmediated dilation (FMD) of brachial artery.Kaplan-Meier method was used to estimate survival rate.The survival difference between the two groups was compared by the log-rank test.Multivariate Cox proportional hazards regression was used to determine the independent risk factors of MACCE.Results In the follow-up period,18 patients in low FMD (FMD≤2.7％) group occurred MACCE,and 13 patients in high FMD (FMD ＞ 2.7％) group occurred MACCE.Compared with high FMD group,MACCE-free survival rate in the low FMD group had a significantly decreased (x2=4.190,P=0.041).Multivariate Cox proportional hazards regression analysis showed that higher level of total cholesterol,lower FMD,longer PD time and higher levels of hs-CRP were all independent predictors of MACCE.Conclusion Reduced brachial artery FMD is an independent risk factor of MACCE,and the application of FMD contributes to the risk stratification of cardiac and cerebrovascular disease in PD patients.

This study is to investigate the protective effect of rosiglitazone (RSG) against learning and memory impairment of APP/PS1/tau transgenic mice. AD mice model was replicated by using 6-month APP/PS1/tau transgenic mice. The learning and memory ability of mice was evaluated by Morris water maze and Western blotting assays was applied to measure the phosphorylation and O-glycosylation of Tau and neurofilaments (NFs) protein. The results demonstrated that RSG could reverse the learning and memory deficits of 3 x Tg mice significantly. It was also found that RSG could suppress the hyperphosphorylation of Tau and NFs protein levels and increase the glycosylation expression of Tau and NFs proteins in 3 x Tg mice brain. Together, RSG ameliorates cognitive impairments of 3 x Tg mice via the alleviation of the hyperphosphorylated Tau and NFs proteins burden in the brain.

Objective To study the relationship among depression associated type 2 deabetes mellitus (T2DM) and personality and quality of life.Methods A total of 246 cases of hospitalized T2DM patients were investigated by schedule tables:self-rating depression scale (SDS),Eysenck personality questionaire (EPQ) and adjusted diabetes-specific quality of life scale (A-DQOL).According to the results of SDS,patients were divided into depression group (171 cases) and non-depression group (75 cases).Correlation analysis and regression analysis were carried out for the collected data.Results There were differences in satisfaction,influence,anxiety Ⅰ,anxiety Ⅱ,neuroticism and extraversion between the two groups(P ＜ 0.05 or P ＜ 0.01).Depression extents was related to the quality of life,neuroticism,extraversion and course(r =-0.243-0.392,P ＜ 0.05 or P ＜ 0.01).Anxiety Ⅱ,satisfaction and course enter the regression equation of depression (β =-0.205-0.322,P ＜ 0.05 or P ＜ 0.01).Conclsion Anxiety Ⅱ,satisfaction and course are key factors inducing depression in T2DM.Neuroticism and extroversion may be the predisposing personality characteristics in T2DM patients with depression.In clinical work,it is helpful for treatment by changing personality and mood of patients.

OBJECTIVETo isolate and purify gallic acid and brevifolincarboxylic acid simultaneously by high-speed counter-current chromatography (HSCCC) from a crude extract of Polygonum capitatum.

METHODThe biphasic solvent system composed of ethyl acetate-n-butanol-0.44% acetic acid (3:1:5) was used at a flow rate of 2.0 mL x min(-1), while the aqueous phase was selected as the mobile phase and the apparatus was rotated at 860 r x min(-1). The effluent was detected at 272 nm.

RESULT51.5 mg of gallic acid and 5.9 mg of brevifolincarboxylic acid were separated from 1.07 g of the crude extract with the purities of 99.7% and 97.5%, respectively, while brevifolincarboxylic acid was obtained firstly from the genus Polygonum. The structures of the compounds were identified by ultraviolet spectrometry (UV), infra-red spectrometry (IR), liquid chromatography/mass spectrometry (LC/MS), time-of-flight mass spectrometry( TOF-MS), 1H-nuclear magnetic resonance (NMR) and 13C-NMR.

CONCLUSIONThis method is feasible and rapid for isolation and purification of gallice acid and brevifolincarboxylil acid.

Carboxylic Acids ; analysis ; isolation & purification ; Countercurrent Distribution ; methods ; Gallic Acid ; analysis ; isolation & purification ; Plant Extracts ; analysis ; isolation & purification ; Polygonum ; chemistry