Objective To explore the value of cardiovascular magnetic resonance feature tracking (CMR-FT) in quantita tive evaluation of myocardium deformation in patients with hypertrophic cardiomyopathy (HCM).Methods Sixteen HCM patients (HCM group) and 18 healthy volunteers (control group) were enrolled and measured with CMR-FT.The differences of left ventricular (LV) end diastolic volume (LVEDV),LV end systolic volume (LVESV),LV ejection fraction (LVEF),left ventricular mass (LVMASS) and LV global radial strain (RS),LV global circumferential strain (CS) were compared between the two groups.The correlations between segmental wall thickness and segmental RS and CS were studied.And the correlation among global RS,CS and LVEDV,LVESV,LVEF,LVMASS were analyzed.Results LVMASS in HCM group was higher than that in control group ([133.74±79.13]g vs [76.87±14.15]g,P=0.01).No sig nificant differences of LVEDV,LVESV,LVEF were found between HCM group and control group (all P＞0.05).Global RS and CS were significantly lower in HCM group than those in control group (RS:[27.05 ± 13.35]％ vs [40.62 ± 4.92] ％,P＜0.01;CS:[-8.68± 5.56] ％ vs [-20.73 ± 1.56] ％,P＜0.01).No significant correlations was observed between segmental wall thickness and segmental RS (r=-0.41,P＜0.01),CS (r=0.28,P＜0.01),respectively.In HCM group,no significant correlations was observed between global RS (r=-0.36,-0.41,0.22,-0.36),CS (r=0.34,0.10,0.22,0.42) and LVEDV,LVESV,LVEF,LVMASS,respectively (all P＞0.05).Conclusion CMR-FT is conducive to quantitative evaluate myocardial deformation in HCM patients.

Objective: To explore influence of shift work in nursing on sleep and circadian blood pressure and rhythm. Methods: A total of 29 shift nurses, who worked in our hospital for a long period, were enrolled as shift nurse group. Another 32 day shift nurses were regarded as day shift nurse control group（control group）. Both groups received Pittsburgh sleep quality index (PSQI) assessment and 24h ambulatory blood pressure monitoring (ABPM). Results: Compared with control group, PSQI assessment showed that most factor scores and PSQI total score [(8.67±2.16) scores vs. (11.98±3.30) scores] significantly increased in shift nurse group（P<0.05~0.01）; 24h ABPM showed that mean nighttime SBP [(106.51±12.94) mmHg vs. (115.74±13.72) mmHg] and nighttime DBP [(71.23±9.76) mmHg vs. (74.96±10.68) mmHg] significantly rose in shift nurse group, P<0.05; Mean SBP decreasing rate [(7.84±1.52)% vs. (3.66±1.47)%] and mean DBP decreasing rate [(6.55±1.39)% vs. (2.83±0.51)%], SBP dipper percentage (59.38% vs. 31.03%) and DBP dipper percentage (68.75% vs. 27.59%) significantly reduced, SBP non-dipper percentage (40.63% vs. 68.97%) and DBP non-dipper percentage (31.25% vs. 72.41%) significantly rose in shift nurses group, P<0.05~0.01.Conclusions: There exists definite somnipathy and significant change of circadian blood pressure and rhythm in shift nurses.

Objective: To study the therapeutic effect of secondary lymphoid tissue chemokine (SLC) combined with CpG oligodeoxynucleotide (CpG-ODN) in treatment of implanted mouse melanoma and the possible mechanism. Methods: SLC-Fc fusion protein was prepared and its chemotaxis of lymphocytes was detected by chemotaxis assay. Implanted melanoma mouse models were established and randomly divided into 4 groups: control group, SLC-Fc group, CpG-ODN group, and SLC-Fc+CpG-ODN group. The growth of implanted tumors in each group was observed after treatment. Subtype and infiltration of lymphocytes in implanted tumor tissues were examined by flow cytometry. Results: SLC-Fc protein was successfully prepared, and it dose-dependently attracted lymphocytes (0.03, 0.3, and 3 μg/L). Intra-tumor injection SLC-Fc and CpG-ODN alone or in combination significantly inhibited growth of B16-implanted tumors. Tumor size in SLC-Fc+CpG-ODN group was significantly smaller than that in control group (P<0.01), and animals in SLC-Fc+CpG-ODN group survived longer. Tumor-infiltrated CD4~+ T, CD~8+ T, and dendritic cells (DCs) in SLC-Fc+CpG-ODN group were markedly increased as compared with those in control group (P<0.05), and tumor draining lymph nodes were dramatically enlarged. Conclusion: SLC combined with CpG-ODN can inhibit the growth of implanted melanoma by attracting CD4~+ T and CD8~+ T and promoting proliferation of DCs.

Objective To observe the effects of betulinic acid (BA) on proliferation of human hepatoma stem cell;To discuss its anti-cancer mechanism from the aspects of cell cycle and cell apoptosis. Methods HepG2 stem cells were cultivated in vitro and testified the self-renewal capacity. The effects of BA in concentration of 40, 20, 10, 5, 2.5, 1.25μmol/L on the cell vitality of cultured human liver cancer stem cells for 24 and 48 hours were measured with CCK-8 method. The human hepatoma stem cell line HepG2 was administrated by BA at concentrations of 40, 20, 10, 5μmol/L for 48 hours, and cell cycle and apoptosis rate were measured by flow cytometry. Results BA could inhibit HepG2 stem cell proliferation obviously with dose-effect relationship. BA influenced cell cycle, and induced tumor stem cell apoptosis. 40μmol/L BA blocked cell cycle in S phase, and cell apoptosis rate reached 10.86%. Conclusion BA has obvious inhibitory effects on proliferation of HepG2 liver cancer stem cell, which probably plays a part in anti-cancer by influencing cell cycle and inducing cell apoptosis.

A known species, Physarum melleum, was found fruiting on living leaves of Dendrobium candidum, which was collected in China in 2004. Its morphological characters were revealed by light microscopy (LM), environmental scanning electron microscopy (ESEM) and scanning electron microscopy (SEM). Character variations were distinguished by its olive-yellow peridium and its always thinner capillitium containing globulose granular material between the large calcareous nodes. The calcium carbonate granules, deposited on stalks, peridium and hypothallus as well as within stalks, were globose and smooth.
Animals ; China ; Dendrobium ; ultrastructure ; Microscopy, Electron, Scanning ; Physarum ; ultrastructure ; Plant Leaves ; ultrastructure

OBJECTIVE To investigate the clinical characteristics and prevention of urinary tract infections in chronic renal failure(CRF) patients.METHODS An analysis of pathogens and clinical characteristics of 96 hospitalized patients with CRF complicating urinary tract infections was performed.RESULTS Among CRF patients complicating urinary system infections,the most common pathogens were Escherichia coli(51.03%),Klebsiella pneumoniae(12.50%),Staphylococcus epidermidis(11.46),etc.There were no significant difference between symptom group and non-symptom group.But they were obviously more among senile patients over 60 years old in the asymptomatic group,accounted for 67.50% and significantly higher than that in symptomatic group(39.29%,P

Objective:To analyze the clinical characteristics and evaluate the effect and safety of anti-vascular endothelial growth factor (VEGF) therapy in retinopathy of prematurity (ROP) in Sichuan province.Methods:A retrospective study. From January 2013 to January 2022, 156 patients (306 eyes) with ROP who received intravitreal anti-VEGF therapy for the first time in the Department of Ophthalmology, West China Hospital of Sichuan University were selected. According to the type of anti-VEGF drugs, the children were divided into intravitreal injection of ranibizumab (IVR) group and intravitreal injection of conbercept (IVC) group; IVC group was divided into hospital group and referral group according to the different paths of patients. After treatment, the patients were followed up until the disease degenerated (vascular degeneration or complete retinal vascularization) or were hospitalized again for at least 6 months. If the disease recurred or progressed, the patients were re-admitted to the hospital and received anti-VEGF drug treatment, laser treatment or surgical treatment according to the severity of the disease. Clinical data of these children was collected, including general clinical characteristics: gender, gestational age at birth (GA), birth weight (BW), history of oxygen inhalation; pathological condition: ROP stage, zone, whether there were plus lesions; treatment: treatment time, postmenstrual gestational age at the time of the first anti-VEGF drug treatment; prognosis: re-treat or not, time of re-treatment, mode of re-treatment; adverse events: corneal edema, lens opacity, endophthalmitis, retinal injury, and treatment-related systemic adverse reactions. The measurement data between groups were compared by t test, and the count data were compared by χ2 test or rank sum test. Results:Of the 306 eyes of 156 children with ROP, 74 were male (47.44%, 74/156) and 82 were female (52.56%, 82/156). Each included child had a history of oxygen inhalation at birth. The GA was (28.43±2.19) (23.86-36.57) weeks, BW was (1 129±335) (510-2 600) g, and the postmenstrual gestational age was (39.80±3.04) (31.71-49.71) weeks at the time of the first anti-VEGF drug treatment. All patients were diagnosed as type 1 ROP, including 26 eyes (8.50%, 26/306) of aggressive ROP (A-ROP), 39 eyes (12.74%, 39/306) of zone Ⅰ lesions, and 241 eyes (78.76%, 241/306) of zone Ⅱ lesions. The children were treated with intravitreal injection of anti-VEGF drugs within 72 hours after diagnosis. Among them, 134 eyes (43.79%, 134/306) of 68 patients were treated with IVR, and 172 eyes (56.21%, 172/306) of 88 patients were treated with IVC. In IVC group, 67 eyes of 34 patients (38.95%, 67/172) were in the hospital group and 105 eyes of 54 patients (61.05%, 105/172) were in the referral group. 279 eyes (91.18%, 279/306) were improved after one treatment, 15 eyes (4.90%, 15/306) were improved after two treatments, and 12 eyes (3.92%, 12/306) were improved after three treatments. The one-time cure rate of IVR group was lower than that of IVC group, but the difference was not statistically significant ( χ2=1.665, P=0.197). In different ROP categories, IVC showed better therapeutic effect in A-ROP, and its one-time cure rate was higher than that in IVR group, with statistically significant difference ( χ2=7.797, P<0.05). In the hospital group of IVC group, the GA, BW and the postmenstrual gestational age at first time of anti-VEGF drug treatment were lower than those in the referral group, and the difference was statistically significant ( t=-2.485, -2.940, -3.796; P<0.05). The one-time cure rate of the hospital group and the referral group were 94.94%, 92.38%, respectively. The one-time cure rate of the hospital group was slightly higher than that of the referral group, but the difference was not statistically significant ( χ2=0.171, P=0.679). In this study, there were no ocular and systemic adverse reactions related to drug or intravitreal injection in children after treatment. Conclusions:Compared with the characteristics of ROP in developed countries, the GA, BW and postmenstrual gestational age of the children in Sichuan province are higher. Both IVR and IVC can treat ROP safely and effectively. There is no significant difference between the two drugs in the overall one-time cure effect of ROP, but IVC performed better in the treatment of A-ROP in this study.

Objective To compare the effect of using the fresh tumor lump and the recovered low temperature-storing VX2 tumor lump that have been frozen for different time to construct the rabbit HCC model.Methods Fish-like fresh VX2 tumor lumps were selected.After the peripheral necrotic tissue and muscle were removed,the tumor lumps were frozen at-80℃ for 3,5 and 7 months.Twenty New Zealand white rabbits were randomly divided into 4 groups.The rabbits in group A(control group)received fresh liver tumor lump implantation to construct in-situ VX2 rabbit HCC models.The rabbits in groups B,C and D(experimental groups)received implantation of the recovered low temperature-storing VX2 tumor lump which had been frozen at-80℃ for 3,5 and 7 months,respectively,to construct in-situ VX2 rabbit HCC models.Fourteen days after implantation,the modeling effect of tumor formation in each group was assessed.The proliferation,apoptosis of tumor cells and the angiogenesis were evaluated by immunofluorescence assay.Results The tumor formation rate of all group A,B,C and D was 100％.However,with the extension of cryopreservation time,the difference in tumor mass activity became larger after 5 months,and the necrotic area of liver tumor center became enlarged.Histological examination showed that there were no significant differences in the expressions of TUNEL,Ki67,HIF-α,VEGF and CD31 between group A and group B,while there were significant differences in the expressions of TUNEL,Ki67,HIF1-α,VEGF and CD31 between group A,B and group C,D.Conclusion The rabbit VX2 HCC model,which is constructed by implantation of recovered low temperature-storing VX2 tumor lump being frozen at-80℃ in vitro for a certain time,can be successfully established within 7 months.The difference in tumor mass activity between tumor lumps became larger after 5 months.But on the whole,the constructed rabbit VX2 HCC model can better preserve the tumor strain activity.This modeling technique can save manpower and material resources.(J Intervent Radiol,2024,33:269-274)

Objective:To explore the rehabilitation effect of multi-factor intervention based on the Finnish model of prevention of cognitive impairment in the elderly on patients with cognitive impairment after first-episode stroke, and to provide reference for rehabilitation nursing of cognitive impairment after stroke.Methods:The quasi-experiment research scheme was adopted and convenience sampling method was used to select participants with first-episode stroke cognitive impairment hospitalized in the General Hospital of Tianjin Medical University Airport Site. The 50 patients admitted from January to June 2022 were selected as the control group, and 50 patients admitted from July to December 2022 were selected as the intervention group. The control group received routine rehabilitation nursing and health education, and the intervention group received the Finnish model of prevention of cognitive impairment in the elderly on patients before discharge on the basis of the control group. The Mini-Mental State Examination (MMSE) and Health Education Compliance Assessment Scale for Stroke Patients were used to evaluate the changes of overall cognitive function and rehabilitation compliance before intervention, 3 and 6 months after intervention.Results:The final control group included 49 cases, including 35 males and 14 females, aged (64.67 ± 7.47) years old; the intervention group included 50 cases, 32 males and 18 females, aged (66.68 ± 8.75) years old. Before intervention, there were no significant differences in overall cognitive function and compliance of rehabilitation score ( P>0.05). At 3 and 6 months after intervention, the overall cognitive function score, the total score on compliance of rehabilitation, dimension scores of diet compliance, exercise rehabilitation compliance and health behavior compliance of the intervention group were (26.36±2.36) , (125.96 ± 13.80) , (23.30 ± 5.26) , (27.72 ± 4.46) , (43.66 ± 6.80) and (27.26 ± 3.71) , (152.44 ± 9.06) , (30.12 ± 6.42) , (33.32 ± 3.02) , (52.36 ± 4.70) , respectively. They were higher than the control group (24.04 ± 4.50) , (116.67 ± 10.26) , (19.31 ± 3.95) , (25.29 ± 3.45) , (40.59 ± 4.33) and (24.27 ± 4.33) , (138.92 ± 16.71) , (24.20 ± 4.48) , (30.00 ± 5.53) , (47.65 ± 8.03) , and the differences had statistical significance ( t values were -5.31- -2.67, all P<0.05). According to the variance analysis of repeated measurement, intergroup and time factor, the interaction between groups and time had significant impact on general cognitive function score, the total score of rehabilitation compliance, the dimension scores of diet, exercise rehabilitation and health behavior compliance ( Fgroup values were 8.33-18.08, Ftime values were 135.71-944.69, Finteraction values were 5.46-27.30, all P<0.05) . Time factor had significant impact on patient medication adherence score ( Ftime=206.23, P<0.05) . Conclusions:Multi-factor intervention based on the Finnish model of prevention of cognitive impairment in the elderly can improve the overall cognitive function and rehabilitation compliance of patients with cognitive impairment after first-episode stroke.

Allergic rhinitis (AR) is prevalent in Singapore, with a significant disease burden. Afflicting up to 13% of the population, AR impairs quality of life, leads to reduced work productivity and is an independent risk factor for asthma. In the last 2 decades, local studies have identified patient and physician behaviours leading to suboptimal control of the disease. Yet, there is an overall lack of attention to address this important health issue. Allergic Rhinitis and its Impact on Asthma (ARIA) is a European organisation aimed at implementing evidence-based management for AR worldwide. Recent focus in Europe has been directed towards empowering patients for self-management, exploring the complementary role of mobile health, and establishing healthcare system-based integrated care pathways. Consolidation of these ongoing efforts has led to the release of the 2019 ARIA care pathways. This review summarises the ARIA update with particular emphasis on the current status of adult AR in Singapore. In addition, we identify unmet needs and future opportunities for research and clinical care of AR in the local context.