OBJECTIVE To study the improvement effect and mechanism of Shengmai powder on heart failure （HF） mice with qi-yin deficiency. METHODS The mice were randomly divided into blank group （water）， model group （water）， Shengmai powder low-， medium-， and high-dose groups [2.61， 5.22 and 10.44 g/kg （based on crude drug dosage）] and positive control group （metoprolol， 30 mg/kg）， with 10 mice in each group. Except for the blank group， all other groups were subcutaneously injected with D-galactose， and a qi-yin deficiency HF mice model was established by continuous food restriction and weight-bearing swimming. At the same time of modeling， the corresponding medicine/water was gavaged once a day for five weeks. The general state of mice was recorded and the traditional Chinese medicine （TCM） syndrome score was evaluated. Behavioral experiments were conducted to investigate the total distance of open field action， the percentage of immobility time， and the swimming exhaustion time of mice. The contents of aspartate transaminase （AST）， creatine kinase （CK） and lactate dehydrogenase （LDH） in the serum of mice were detected； cardiac function indexes [heart rate， left ventricular ejection fraction （LVEF）， left ventricular end systolic diameter （LVESD）， left ventricular end diastolic diameter （LVEDD）， left ventricular mass index and whole heart mass index] were all detected； the histopathological morphology of mice myocardium was observed； the level of cardiomyocyte apoptosis in mice was detected； mRNA expression levels of B-cell lymphoma 2 （Bcl-2）， Bcl-2 associated X protein （Bax）， and Cleaved-caspase-3 in myocardial tissue of mice were detected； the phosphorylation levels of sarcoplasmic reticulum calcium regulatory related proteins [ryanodine receptor 2 （RyR2） and phospholamban （PLB）] in myocardial tissue of mice were detected. RESULTS Compared with the blank group， the body weight， total distance of open field action， swimming exhaustion time， LVEF， LVEDD， Bcl-2 mRNA expression level in myocardial tissue and PLB protein phosphorylation level in the model group were significantly reduced/shortened （P＜0.05）； TCM syndrome score， the percentage of immobility time， heart rate， LVESD， left ventricular mass index， whole heart mass index， cardiomyocyte apoptosis rate， the contents of CK， LDH and AST in serum， mRNA expression levels of Cleaved-caspase-3 and Bax and the phosphorylation level of RyR2 protein in myocardial tissue were significantly increased （P＜0.05）； there were inflammatory cell infiltration， disordered cell arrangement and obvious myocardial interstitial fibrosis in myocardial tissue. After the intervention of Shengmai powder， most of the above quantitative indexes in mice were significantly reversed （P＜0.05）， the inflammatory cell infiltration in myocardial tissue was reduced， and the degree of fibrosis was significantly reduced. CONCLUSIONS Shengmai powder can improve cardiac function， reduce the level of cardiomyocyte apoptosis and myocardial fibrosis in HF mice with qi-yin deficiency. Its mechanism may be related to the regulation of the expression of sarcoplasmic reticulum calcium regulation related proteins.

In the current era filled with change and challenges,public hospitals,as a crucial part of the national healthcare system,urgently need to enhance their agility to swiftly respond to the ever-changing environment.Current it outlines the origins and connotations of organizational agility,argues for the necessity of organizational agility in public hospitals,and proposes the core competencies required to maintain organizational agility in public hospitals,namely:patient-centeredness,environmental sensitivity,proactive planning,organizational integration capability,flexibility,rapid response,iterative regulation,and continuous learning.Furthermore,it attempts to establish a cultivation pathway for organizational agility in public hospitals,encompassing multiple dimensions such as organizational culture,agile leadership,communication systems,organizational structure,the embedding of new productivity,management systems,partner management,training systems,performance evaluation,and compliance management.

Objective:To observe the effect of mirror threshold load training on respiration of persons with respiratory muscle fatigue after a cerebral hemorrhage.Methods:Fifty cerebral hemorrhage patients with respiratory muscle fatigue were randomly divided into an observation group and a control group, each of 25. In addition to routine rehabilitation training, the control group was given threshold load training of the respiratory muscles, while the observation group was provided with mirror threshold load training, twice a day in the morning and afternoon, 5 days a week for 4 weeks. Before the experiment and after 1, 2, 3 and 4 weeks of the treatment, everyone′s maximum inspiratory pressure (MIP) and maximum expiratory pressure (MEP) was recorded. Before and after the 4 weeks forced expiration volume in the first second (FEV1) was measured along with 25% of the forced expiration volume (FEF25), maximum sound time (MPT) and respiration rate (RR).Results:At each time point the MIP and MEP values of both groups were significantly better than those before the treatment. After 4 weeks the average MIP and MEP values of the observation group were significantly better than those of the control group. And after 4 weeks the FEV1, FEF25, MPT and RR values of both groups had also improved significantly, on average. All of the observation group′s averages except MPT were then significantly better than the control group′s averages.Conclusions:Mirror threshold load training of the respiratory muscles can significantly improve the respiration of persons with respiratory muscle fatigue after a cerebral hemorrhage. It is more effective than respiratory muscle threshold load training.

Objective:To investigate the clinical characteristics of limb overgrowth following proximal femoral osteotomy (PFO) for unilateral developmental dysplasia of the hip (DDH) in children.Methods:A retrospective analysis was conducted on 36 children with unilateral DDH who underwent PFO at Xi'an Honghui Hospital from June 2017 to June 2021. The cohort included 4 males and 32 females, with a mean age of 4.23±3.15 years (range: 2-12 years), comprising 28 left-sided and 8 right-sided cases. According to the International Hip Dysplasia Institute (IHDI) classification, there were 2 type I, 9 type II, 16 type III, and 9 type IV cases. Radiographic parameters [femoral length, femoral neck anteversion angle, neck-shaft angle, acetabular index (AI), center-edge angle (CEA), center-head distance discrepancy (CHDD)] and PFO parameters (varus angle, shortening length, derotation angle) were measured on X-ray and 3D CT reconstructions. Comparisons were made between the overgrowth ≥1 cm group ( n=14) and <1 cm group ( n=22) to analyze risk factors and patterns. Results:The overgrowth ≥1 cm group had significantly younger patients (2.49±1.03 years vs. 5.13±3.47 years, t=-2.757, P<0.001). Overgrowth magnitude varied significantly across age subgroups: 11.08±6.17 mm in the 2-4 years group, 5.08±0.19 mm in the >4-<6 years group, and 2.44±4.50 mm in the ≥6 years group ( F=5.436, P=0.031). The highest incidence of overgrowth occurred in the 2-4 years subgroup (56%, 20/36). Limb overgrowth initiated at 3 months postoperatively, exhibited a linear correlation with follow-up duration during 6-18 months [ r=0.78, 95% CI(0.62, 0.88), P<0.001)], and plateaued after 18 months [ r=-0.15, 95% CI(-0.75, 0.57), P=0.710]. Postoperative CEA and CHDD showed significant improvements ( P<0.05), while AI remained unchanged ( P>0.05). Conclusions:Children aged 2-4 years exhibit higher incidence and severity of post-PFO limb overgrowth. The rapid progression phase occurs within 6-18 months postoperatively, stabilizing thereafter. CEA and CHDD serve as critical indicators for evaluating intervention efficacy in DDH-related overgrowth.

Objective:To investigate the clinical characteristics of limb overgrowth following proximal femoral osteotomy (PFO) for unilateral developmental dysplasia of the hip (DDH) in children.Methods:A retrospective analysis was conducted on 36 children with unilateral DDH who underwent PFO at Xi'an Honghui Hospital from June 2017 to June 2021. The cohort included 4 males and 32 females, with a mean age of 4.23±3.15 years (range: 2-12 years), comprising 28 left-sided and 8 right-sided cases. According to the International Hip Dysplasia Institute (IHDI) classification, there were 2 type I, 9 type II, 16 type III, and 9 type IV cases. Radiographic parameters [femoral length, femoral neck anteversion angle, neck-shaft angle, acetabular index (AI), center-edge angle (CEA), center-head distance discrepancy (CHDD)] and PFO parameters (varus angle, shortening length, derotation angle) were measured on X-ray and 3D CT reconstructions. Comparisons were made between the overgrowth ≥1 cm group ( n=14) and <1 cm group ( n=22) to analyze risk factors and patterns. Results:The overgrowth ≥1 cm group had significantly younger patients (2.49±1.03 years vs. 5.13±3.47 years, t=-2.757, P<0.001). Overgrowth magnitude varied significantly across age subgroups: 11.08±6.17 mm in the 2-4 years group, 5.08±0.19 mm in the >4-<6 years group, and 2.44±4.50 mm in the ≥6 years group ( F=5.436, P=0.031). The highest incidence of overgrowth occurred in the 2-4 years subgroup (56%, 20/36). Limb overgrowth initiated at 3 months postoperatively, exhibited a linear correlation with follow-up duration during 6-18 months [ r=0.78, 95% CI(0.62, 0.88), P<0.001)], and plateaued after 18 months [ r=-0.15, 95% CI(-0.75, 0.57), P=0.710]. Postoperative CEA and CHDD showed significant improvements ( P<0.05), while AI remained unchanged ( P>0.05). Conclusions:Children aged 2-4 years exhibit higher incidence and severity of post-PFO limb overgrowth. The rapid progression phase occurs within 6-18 months postoperatively, stabilizing thereafter. CEA and CHDD serve as critical indicators for evaluating intervention efficacy in DDH-related overgrowth.

In the current era filled with change and challenges,public hospitals,as a crucial part of the national healthcare system,urgently need to enhance their agility to swiftly respond to the ever-changing environment.Current it outlines the origins and connotations of organizational agility,argues for the necessity of organizational agility in public hospitals,and proposes the core competencies required to maintain organizational agility in public hospitals,namely:patient-centeredness,environmental sensitivity,proactive planning,organizational integration capability,flexibility,rapid response,iterative regulation,and continuous learning.Furthermore,it attempts to establish a cultivation pathway for organizational agility in public hospitals,encompassing multiple dimensions such as organizational culture,agile leadership,communication systems,organizational structure,the embedding of new productivity,management systems,partner management,training systems,performance evaluation,and compliance management.

Objective:To observe the effect of mirror threshold load training on respiration of persons with respiratory muscle fatigue after a cerebral hemorrhage.Methods:Fifty cerebral hemorrhage patients with respiratory muscle fatigue were randomly divided into an observation group and a control group, each of 25. In addition to routine rehabilitation training, the control group was given threshold load training of the respiratory muscles, while the observation group was provided with mirror threshold load training, twice a day in the morning and afternoon, 5 days a week for 4 weeks. Before the experiment and after 1, 2, 3 and 4 weeks of the treatment, everyone′s maximum inspiratory pressure (MIP) and maximum expiratory pressure (MEP) was recorded. Before and after the 4 weeks forced expiration volume in the first second (FEV1) was measured along with 25% of the forced expiration volume (FEF25), maximum sound time (MPT) and respiration rate (RR).Results:At each time point the MIP and MEP values of both groups were significantly better than those before the treatment. After 4 weeks the average MIP and MEP values of the observation group were significantly better than those of the control group. And after 4 weeks the FEV1, FEF25, MPT and RR values of both groups had also improved significantly, on average. All of the observation group′s averages except MPT were then significantly better than the control group′s averages.Conclusions:Mirror threshold load training of the respiratory muscles can significantly improve the respiration of persons with respiratory muscle fatigue after a cerebral hemorrhage. It is more effective than respiratory muscle threshold load training.

Natural compounds demonstrate unique therapeutic advantages for cancer treatment, primarily through direct tumor suppression or interference with the tumor microenvironment (TME). Glycyrrhizic acid (GL), a bioactive ingredient derived from the medicinal herb Glycyrrhiza uralensis Fisch., and its sapogenin glycyrrhetinic acid (GA), have been recognized for their ability to inhibit angiogenesis and remodel the TME. Consequently, the combination of GL with other therapeutic agents offers superior therapeutic benefits. Given GL's amphiphilic structure, self-assembly capability, and liver cancer targeting capacity, various GL-based nanoscale drug delivery systems have been developed. These GL-based nanosystems exhibit angiogenesis suppression and TME regulation properties, synergistically enhancing anti-cancer effects. This review summarizes recent advances in GL-based nanosystems, including polymer-drug micelles, drug-drug assembly nanoparticles (NPs), liposomes, and nanogels, for cancer treatment and tumor postoperative care, providing new insights into the anti-cancer potential of natural compounds. Additionally, the review discusses existing challenges and future perspectives for translating GL-based nanosystems from bench to bedside.
Animals ; Humans ; Antineoplastic Agents/therapeutic use* ; Glycyrrhizic Acid/therapeutic use* ; Liposomes/chemistry* ; Micelles ; Nanoparticles/chemistry* ; Neoplasms/pathology* ; Tumor Microenvironment/drug effects* ; Nanoparticle Drug Delivery System/therapeutic use*

Objective To investigate the fluctuations in the population density of Aedes albopictus and changes in the population density of Ae. albopictus in different geographical areas and different breeding habitats in Guangdong Province from 2018 to 2023, so as to provide insights into prevention and control of mosquito-borne infectious diseases in the province. Methods Ae. albopictus surveillance sites were assigned in 1 609 townships (streets) from 121 districts (counties) of 21 cities in Guangdong Province during the period between March and November from 2018 to 2023. The surveillance of the population density of Ae. albopictus was performed once a month in each surveillance site, and once a month in specific settings in cities where dengue were highly prevalent in Guangdong Province from December to February of the next year during the period from 2018 through 2023. Four streets (villages) were selected in each surveillance site according to the geographic orientation, and mosquito ovitraps were assigned in gardens, rooftops or public green belts at residential areas, parks, hospitals and construction sites. All mosquito ovitraps were collected, and the mosquito ovitrap index (MOI) was calculated. The population density of Ae. albopictus was classified into four grades in each surveillance site according to MOI, including no risk, low risk, medium risk and high risk. The risk classification of the Ae. albopictus density was analyzed in each surveillance site each year from 2018 to 2023, and the population density of Ae. albopictus was analyzed at different months and in different geographical areas and breeding habitats. Results A total of 118 241 Ae. albopictus surveillance sites were assigned in 21 cities of Guangdong Province from 2018 to 2023, and there were 68.26% of the surveillance sites with the population density of Ae. albopictus that met the requirements for dengue prevention and control, among which low, medium and high risk surveillance sites accounted for 23.61%, 6.67% and 1.47%. The risk classification of the Ae. albopictus density increased rapidly in Guangdong Province since April to May each year from 2018 to 2023, and then gradually reduced since September to October, with the peak during the period between May and July. The mean MOI was 4.21 at each surveillance site in Guangdong Province during the period from 2018 to 2023, with 4.69, 4.80, 4.38, 3.82, 3.38, and 4.33 from 2018 to 2023, respectively. The MOI was 4.35, 4.43, 3.53 and 3.58 in the Pearl River Delta region, and eastern, western, and northern Guangdong Province, respectively, and was 4.18, 5.44, 4.75, 3.24, 4.27 and 3.70 in residential areas, parks, construction sites, hospitals, waste collection stations, and other breeding habitats, respectively. Conclusions The population density of adult Ae. albopictus peaked in Guangdong Province during the period between May and July from 2018 to 2023, with a high density of Ae. albopictus in the Pearl River Delta region and eastern Guangdong Province. Targeted Ae. albopictus control measures are recommended to be implemented prior to the peak of the Ae. albopictus population density to reduce the development of mosquito-borne infectious diseases.

Objective It conducted a grounded theory on the factors influencing the sense of job significance of hospital administrators to provide suggestions and references for the promotion of high-quality development of hospital management work.Methods From April to September 2023,it interviewed 23 administrators from various departments across Provinces/Cities,including Zhejiang,Heilongjiang,Guangdong,Shanghai,Henan,Jilin,Sichuan and others,using a theoretical sampling method.Employing Grounded Theory,it encoded over transcriptional information at three levels.Results Three-level coding process yielded 66 free nodes,19 initial concepts,7 main categories,and 3 dimensions,leading to the development of a theoretical model encompassing existence,relatedness,and growth.Conclusion The job meaning for hospital administrators is shaped by existence,relatedness,and growth.It recommend revising performance assessments,fostering an empowering culture,enhancing informal communication,providing professional growth pathways,and offering diverse career development options to deepen administrators'job meaning.