Objective: To compare the consistency between bioelectrical impedance analysis (BIA) and dual energy X ray absorptiometry (DXA) in measuring body composition among Tibetan children and adolescents and to explore the applicability of BIA in plateau region, so as to provide scientific and convenient body composition measurement support among children and adolescents. Methods: From May to June, 2022, a total of 344 Tibetan children and adolescents aged 6-17 years were selected from Golmud Municipal National Middle School and Changjiangyuan Nationality Primary School in Qinghai Province by cluster sampling method, and their fat mass, fat mass percentage and lean mass were measured by DXA and BIA. The consistency and correlation between the two methods were assessed by using the Wilcoxon rank-sum test, Spearman correlation analysis, intraclass correlation coefficient (ICC), and Bland-Altman analysis. Results: DXA measured fat mass and fat mass percentage were significantly higher than those obtained by BIA (6-12 years old: Z =9.91, 11.28; 13-17 years old: Z =9.02, 10.21), while lean mass and lean mass percentage were significantly lower than BIA results (6-12 years old: Z =-11.60, -11.30; 13-17 years old: Z =-10.77, -10.36) (all P < 0.05 ). The two methods showed strong correlations in fat mass and lean mass (all r >0.80, all ICC >0.90), but exhibited poor agreement in fat mass percentage and lean mass percentage (6-12 years old: Lin s CCC =0.64, 0.41; 13-17 years old: Lin s CCC = 0.79 , 0.35). Bland-Altman analysis showed that the difference between the two methods was negatively correlated with the average value in FM%(6-12 years old: r =-0.75, 13-17 years old: r =-0.79, both P <0.01). Conclusion BIA and DXA show high consistency in measuring body fat mass and lean body mass in Tibetan children and adolescents, although some bias is still present in certain individuals.

ObjectiveTo explore the potential mechanism of Huoxue Xiaoyi Formula （活血消异方， HXF） in treating ovarian endometriosis （OEM） from the perspective of T follicular helper （Tfh） cells and the Janus kinase/signal transducer and activator of transcription （JAK/STAT） signaling pathway. MethodsForty-five female SD rats with normal estrous cycles were randomly divided into three groups， HXF group， model group， and normal group， with 15 rats in each group. A rat model of OEM was established by autologous endometrial tissue implantation. After successful modeling， the treatment group received HXF at 5.85 g/（kg·d） by gavage for 14 consecutive days. The model group and normal group received 1 mL/d of normal saline by gavage. RNA-sequencing data from human proliferative-phase endometriotic and normal endometrial tissues were downloaded from the GEO database. Transcriptomic sequencing was used to analyze gene expression in rat ovarian ectopic tissues and normal uterine tissues， and comparisons were made with human data to verify JAK/STAT pathway activation in proliferative-phase ectopic tissues. Immunohistochemistry was used to detect the positive expression of CXC chemokine receptor 5 （CXCR5） and interleukin-21 （IL-21） in rat ovarian ectopic and normal uterine tissues. Western Blotting was performed to detect the protein levels of IL-21， IL-21 receptor （IL-21R）， Janus kinase 1 （JAK1）， signal transducer and activator of transcription 6 （STAT6）， and B-cell lymphoma 2 （Bcl-2）. Tfh cell infiltration was analyzed using immune cell infiltration methods. ResultsGene set enrichment analysis showed that the JAK/STAT pathway was significantly activated in human proliferative-phase endometriotic tissues compared to normal endometrial tissues. Similarly， the JAK/STAT pathway was markedly activated in rat ovarian ectopic tissues in the model group compared to the normal group， but suppressed in the HXF group compared to the model group. Compared with normal uterine tissues， ovarian ectopic tissues in the model group showed increased Tfh cell infiltration scores， higher CXCR5 and IL-21 expression， and elevated levels of IL-21， IL-21R， JAK1， STAT6， and Bcl-2 proteins. Compared with the model group， HXF group showed reduced CXCR5 and IL-21 expression and decreased protein levels of IL-21， IL-21R， JAK1， STAT6， and Bcl-2. ConclusionHXF may suppress activation of the JAK/STAT signaling pathway in ovarian endometriotic tissues by inhibiting IL-21 secretion from Tfh cells.

A 15-year-old boy developed abdominal pain and melena two weeks after COVID-19 infection, which was followed by gross hematuria and proteinuria. Laboratory studies revealed significantly elevated inflammatory markers. Endoscopic examinations showed multiple jejunal and ileal ulcers. Renal biopsy suggested mesangial proliferative glomerulonephritis with crescent formation, necrosis of capillary loops, and mesangial IgA deposits. IgA vasculitis without purpura was considered as a possible diagnosis, and the treatment with prednisone led to remission of both gastrointestinal and renal diseases.

Objective:To evaluate the effect of sevoflurane on mitochondrial-associated endoplasmic reticulum membranes (MAMs) in mouse microglia and the relationship with silent information regulator-related enzyme 3 (SIRT3)/adenosine triphosphatase family protein 3A (ATAD3A) signaling pathway.Methods:After normal culture of mouse microglia (BV-2 cell line), the cells were divided into 4 groups ( n=33 each) by a random number table method: empty adenovirus-control group (group C), empty adenovirus-sevoflurane exposure group (group Sev), SIRT3 overexpression adenovirus-control group (group SIRT3 + C) and SIRT3 overexpression adenovirus-sevoflurane exposure group (group SIRT3 + Sev). The cells were infected with SIRT3 overexpression adenovirus 100 pmol/well in SIRT3+ C group and SIRT3+ Sev group and with empty adenovirus 100 pmol/well in C group and Sev group. After 48 h of infection, the cells were routinely cultured for 48 h in C group and SIRT3+ C group, the cells were incubated with 3% sevoflurane for 2 h, once a day for 3 consecutive days, followed by routine culture for 48 h in Sev group and SIRT3+ Sev group. The contents of mitochondrial Ca 2+ and reactive oxygen species (mtROS) were measured by flow cytometry. The mitochondrial membrane potential (MMP) was measured by JC-1 probe. The mitochondrial ATP content was measured by luciferase luminescence method. The expression of SIRT3 was detected by Western blot. The expression of acetylated ATAD3A was detected by immunoprecipitation. The co-localization of endoplasmic reticulum and mitochondria was determined by confocal fluorescence microscopy, and the Manders co-localization coefficient was calculated to evaluate the development of MAMs. Results:Compared with group C, the contents of mitochondrial Ca 2+ and mtROS were significantly increased, the contents of MMP and mitochondrial ATP were decreased, the expression of SIRT3 was down-regulated, the expression of acetylated ATAD3A was up-regulated, and the development of MAMs was increased in group Sev ( P<0.05). Compared with Sev group, the contents of mitochondrial Ca 2+ and mtROS were significantly decreased, the contents of MMP and mitochondrial ATP were increased, the expression of SIRT3 was up-regulated, the expression of acetylated ATAD3A was down-regulated, and the development of MAMs was decreased in SIRT3 + Sev group ( P<0.05). Compared with SIRT3+ C group, the contents of mitochondrial Ca 2+ and mtROS were significantly increased, the contents of MMP and mitochondrial ATP were decreased, the expression of SIRT3 was down-regulated, the expression of acetylated ATAD3A was up-regulated, and the development of MAMs was increased in SIRT3+ Sev group ( P<0.05). Conclusions:The mechanism by which sevoflurane induces mitochondrial dysfunction in mouse microglia may be related to the inhibition of SIRT3/ATAD3A signaling pathway, leading to excessive development of MAMs.

In the context of comprehensively advancing the Healthy China initiative,the high-quality development of public hospitals must be guided by the core principle of"people's health".It provides a systematic analysis of the historical evolution of developmental paradigms in Chinese public hospitals.By integrating the current policy requirements for their high-quality development,it proposes key pathways including the innovation of development concepts,the reconstruction of hospital connotations,the extension of service management,the optimization of the system structure,and the empowerment of digital and intelligent technologies.Through empirical case studies that demonstrate the viability of these pathways,it aims to provide theoretical support and practical reference for the high-quality development of public hospitals centered on people's health.

Objective To evaluate the efficacy and safety of percutaneous vertebroplasty(PVP)using a 17 G puncture needle for the treatment of painful cervical osteolytic metastases.Methods The clinical data of 42 patients with cervical osteolytic metastases(53 lesions in total),who were treated with PVP at the Affiliated Zhongda Hospital of Southeast University of China from March 2012 to March 2024,were retrospectively analyzed.Visual Analog Scale(VAS)was used to evaluate the clinical efficacy and procedure-related complications at one week,one month,3 months,6 months,and one year after PVP.Follow-up CT scan was performed at 1-3 days after PVP so as to evaluate the condition of bone cement filling and leakage.Results Successful PVP using a 17 G puncture needle was accomplished for all the 53 diseased cervical vertebrae.Among them,one patient had one diseased vertebra of C1 and each in 5 patients had one diseased vertebra of C2,and all the 6 lesions were treated with CT-guided PVP;each in 6 patients had one diseased vertebra of C2 and 30 patients had 41 diseased vertebrae of C3-C6,and all the 47 lesions were treated with DSA fluoroscopy-guided PVP.The mean volume of bone cement injected in each vertebra was(1.9±0.45)mL,and the mean bone cement filling rate in each vertebra was(83.5±9.7)％.The preoperative average VAS score was 8.2 points,and it decreased by 5.6,6.1,6.2,5.9,and 5.7 points at one week,one month,3 months,6 months,and one year after PVP,respectively.There was a statistically significant difference in VAS score between one week after PVP and before PVP(P＜0.01),but no statistically significant differences in VAS scores existed within one year after PVP(all P＞0.05).Asymptomatic leakage of bone cement occurred in 14(26.4％)cervical vertebrae.One patient developed pharyngeal infection(adopting the anterior oblique puncture approach),which was cured after anti-infection treatment.No procedure-related complications such as neck bleeding,hematoma,etc.were observed.The lesion control rates at 3,6,and 12 months after PVP were 94.3％,93.9％,and 88.9％,respectively,there was no statistically significant difference in lesion control rates among the follow-up time-points(P=0.580).Conclusion For the treatment of painful cervical osteolytic metastases,PVP using a 17 G puncture needle is clinically safe and feasible.PVP can quickly relieve cervical pain and maintain cervical stability for a long time.Bone cement filling has a good control effect on cervical osteolytic metastatic tumors,although this control effect will decrease over time.

Objective To identify potential ergonomic risk factors of works and quickly assess their risks of developing work-related musculoskeletal disorders (WMSDs) in the medical staff. Methods A total of 188 medical staff were selected as the research objects using a two-stage random sampling method. The method for the identification of musculoskeletal stress factors (PLIBEL) was used to analyze the adverse ergonomic factors in the work process, and the rapid entire body assessment (REBA) was used to quickly assess the whole-body posture load. Results The PLIBEL assessment results showed that various adverse ergonomic factors affected different parts of the body during the work process of medical staff. Specifically, 18 adverse ergonomic factors were identified in the neck, shoulders, and upper back, while 10 adverse ergonomic factors were identified in the elbow, forearm, hand, and lower back. Rehabilitation therapists and nurses engaged in patient handling in general wards and medication preparation and blood collection were exposed to ≥35 adverse ergonomic factors. The REBA assessment showed that the REBA score was 3-12 points for medical staff during their work process. Rehabilitation therapists were classified as having an extremely high ergonomic risk. High-risk occupations included ward housekeeping nurses, surgery assistant nurses, operating-room instrument nurses, and surgeons. Medium-risk occupations included general ward nurses (medication preparation and blood collection, venipuncture/infusion, and patient handling), intensive care unit (ICU) nurses, internal medicine residents, and dentists. Low-risk occupations included administrative front-desk nurses, outpatient internal medicine physicians, and technicians/physicians in ultrasonography, laboratory medicine, physical examination, and occupational health departments. Conclusion Adverse ergonomic factors of medical staff predominantly affect the neck, shoulders, upper back, elbows, forearms, hands, and the lower back during the work process. Rehabilitation therapists, ward housekeeping nurses, ICU nurses, operating-room instrument nurses, and surgeons are high-risk groups for WMSDs. Attention should be paid to the management and control of adverse ergonomic factors for medical staff to prevent the occurrence of WMSDs.

In recent years, there has been a significant surge in the prevalence of myopia at younger ages in China. Numerous studies have investigated methods for preventing and controlling myopia, including orthokeratology, low-concentration atropine eye drops, light therapy, posterior scleral reinforcement, and traditional Chinese medicine. These approaches can modulate choroidal thickness, blood flow, and target various molecular mechanisms. Orthokeratology and low-concentration atropine demonstrate a thickening effect on the choroid and regulate choroidal blood flow; the use of multi-point defocus control lenses also shows promise in thickening the choroid; the influence of light and light feeding therapy on myopia prevention and control is also reflected in the choroidal thickness and blood flow; and the traditional Chinese medicine has shown good prospect in influencing the microstructure of the choroid for myopia prevention and control. However, the long-term effects of various prevention and control measures on the choroid still need to be explored with a large sample size. This article provides an overview of various methods used to regulate the choroid and prevent myopia. The mechanisms by which these interventions act on the choroid are described to provide new insights and identity novel clinical strategies for myopia management.

This article presents a case study of a patient who visited the Geriatric Department of Peking Union Medical College Hospital due to "palpitations, shortness of breath for more than 2 years, limb weakness for 6 months, edema, and nocturnal dyspnea for 2 months". The patient exhibited decreased muscle strength in the limbs and involvement of swallowing and respiratory muscles, alongside complications of heart failure and various arrhythmias which were predominantly atrial. Laboratory tests revealed the presence of multiple autoantibodies and notably anti-mitochondrial antibodies. Following a comprehensive multidisciplinary evaluation, the patient was diagnosed with anti-mitochondrial antibody-associated inflammatory myopathy. Treatment involved a combination of glucocorticoids and immunosuppressants, along with resistance exercises for muscle strength and rehabilitation training for lung function, resulting in significant improvement of clinical symptoms. The case underscores the importance of collaborative multidisciplinary approaches in diagnosing and treating rare diseases in elderly patients, where careful consideration of clinical manifestations and subtle abnormal clinical data can lead to effective interventions.

The connotation of the "four-dimensional pivot-earth" qi transformation mode is a dialectical system of the ascending and descending of yin-yang qi movement， which presented as "the middle Jiao showing earth qi mediating， the left wheel showing water and wood ascending， and the right wheel showing fire and metal converting and descending". Based on this dialectical thinking， it is believed that the core pathogenesis of myasthenia gravis is deficiency of center qi and transportation failure to pivot-earth； the middle-stage characteristics of the disease progression are the loss of mediation of the central qi， resulting in water coldness and wood constraint， and clear yang failing to ascend； the final outcome of this disease is the loss of astringeing of lung metal and qi sinking. The treatment should be based on the rule of qi movement， so for the start-stage， Buzhong Yiqi Decoction （补中益气汤） should be used as the basis to nourish the earth and consolidate the root， and restrengthen the middle qi； for the middle-stage， herbs like Yingyanghuo （Epimedium brevicornu Maxim.）， Bajitian （Morinda officinalis How） could be combined to warm the water and soothe the wood， raise yang and boost qi； for the final stage， plus Sini Decoction （四逆汤） to astringe metal to stop collapse， and powerfully supplement original qi. All these medicinals can promote pivot-earth re-transportation， four-dimensional transformation， and regular circulation of qi movement， so as to provide thoughts for improving the clinical effectiveness of myasthenia gravis.