Ankylosing spondylitis(AS)is a chronic autoimmune disease characterized by inflammatory involvement of the axial skeleton and pathological bone formation.The T helper 17 cell(Th17 cell)subset of lym-phocytes plays a central role in mediating the inflammatory processes associated with AS.This review summarizes recent advances in the regulation of Th17 cell differentiation in AS,with a focus on the complex mechanisms governed by cytokine microenvironments,transcription factor networks,and metabolic and epigenetic regulatory pathways.Key regulatory components discussed include the IL-23/STAT3 signaling axis,the CCL20/CCR6 chemo-tactic axis,and the master transcription factor RORγt.Additionally,this review critically evaluates emerging thera-peutic strategies targeting metabolic reprogramming(e.g.,PKM2),epigenetic regulators(e.g.,JMJD3,EZH2),engineered exosome delivery systems,and modulators of metabolic enzymes.By analyzing the limitations of current treatment approaches,the review proposes future research directions emphasizing multi-target therapeutic strategies and highlights the importance of personalized medicine in achieving precise and effective treatment for AS.These developments reveal promising new avenues for modulating Th17-mediated immunity,offering transformative poten-tial for the clinical management of AS.

Objective To develop a rapid and accurate ultra-performance liquid chromatography tandem mass spectrometry(UPLC-MS/MS)method for the detection of etomidate,metomidate,propoxate,and isopropoxate in human hair.Methods Hair samples containing etomidate,metomidate,propoxate,and isopropoxate were extracted with methanol containing the internal standard orthoxine,filtered with a 0.22 μm organic filter membrane and detected vio UPLC-MS/MS.All components were separated by using a gradient elution procedure consisting of 0.01％formic acid(1 mmol/L ammonium acetate)and acetonitrile.Positive electrospray ionization was performed using multiple reaction monitoring(MRM)mode.Results The linear relationships of etomidate,metomidate,propoxate,and isopropoxate were good in the range of 0.01～1 ng/mg(r ≥ 0.997 9),with recovery rates ranging from 87.9％to 101.5％.The accuracy was between 80.0％and 110.0％.The intra-day and inter-day relative standard deviations(RSD)were 2.9％～9.6％and 3.6％～19.9％.Conclusion This method is easy to operate and has high recovery efficiencies.It is sufficiently simple and sensitive to be applied to detect etomidate,metomidate,propoxate,and isopropoxate in hair.

BACKGROUND: Senescent human skin primary fibroblast (FB) models have been established for studying aging-related, proliferative, and inflammatory skin diseases. The aim of this study was to compare the transcriptome characteristics of human primary dermal FBs from children and the elderly with four senescence models. METHODS: Human skin primary FBs were obtained from healthy children (FB-C) and elderly donors (FB-E). Senescence models were generated by ultraviolet B irradiation (FB-UVB), D-galactose stimulation (FB-D-gal), atazanavir treatment (FB-ATV), and replication exhaustion induction (FB-P30). Flow cytometry, immunofluorescence staining, real-time quantitative polymerase chain reaction, co-culturing with immune cells, and bulk RNA sequencing were used for systematic comparisons of the models. RESULTS: In comparison with FB-C, FB-E showed elevated expression of senescence-related genes related to the skin barrier and extracellular matrix, proinflammatory factors, chemokines, oxidative stress, and complement factors. In comparison with FB-E, FB-UVB and FB-ATV showed higher levels of senescence and expression of the genes related to the senescence-associated secretory phenotype (SASP), and their shaped immune microenvironment highly facilitated the activation of downstream immune cells, including T cells, macrophages, and natural killer cells. FB-P30 was most similar to FB-E in terms of general transcriptome features, such as FB migration and proliferation, and aging-related characteristics. FB-D-gal showed the lowest expression levels of senescence-related genes. In comparisons with the single-cell RNA sequencing results, FB-E showed almost complete simulation of the transcriptional spectrum of FBs in elderly patients with atopic dermatitis, followed by FB-P30 and FB-UVB. FB-E and FB-P30 showed higher similarity with the FBs in keloids. CONCLUSIONS Each senescent FB model exhibited different characteristics. In addition to showing upregulated expression of natural senescence features, FB-UVB and FB-ATV showed high expression levels of senescence-related genes, including those involved in the SASP, and FB-P30 showed the greatest similarity with FB-E. However, D-galactose-stimulated FBs did not clearly present aging characteristics.
Humans ; Fibroblasts/drug effects* ; Cellular Senescence/physiology* ; Skin/metabolism* ; Child ; Transcriptome/genetics* ; Aged ; Ultraviolet Rays ; Cells, Cultured ; Galactose/pharmacology*

Ovulatory dysfunction (OD) is one of the main causes of infertility in women of childbearing age, which not only affects their reproductive ability, but also physical and mental health. Traditional treatment strategies have limited efficacies, and the emergence of biomedicines provides a promising alternative solution via the strategies of combining engineered design with modern advanced technology. This review explores the pathophysiological characteristics and related induction mechanisms of OD, and evaluates the current cutting-edge advances in its treatments. It emphasizes the potentials of biomedicines strategies such as hydrogels, nanoparticles and extracellular vesicles in improving therapeutic precision and efficacy. By mimicking natural physiological processes, and achieving controlled drug release, these advanced drug carriers are expected to address the challenges in ovarian microenvironment reprogramming, tissue repair, and metabolic and immune regulation. Despite the promising progress, there are still challenges in terms of biomedical complexity, differences between animal models and human physiology, and the demand for intelligent drug carriers in the therapy of OD. Future researches are mainly dedicated to developing precise personalized biomedicines in OD therapy through interdisciplinary collaboration, promoting the development of reproductive regenerative medicine.

Objective To develop a rapid and accurate ultra-performance liquid chromatography tandem mass spectrometry(UPLC-MS/MS)method for the detection of etomidate,metomidate,propoxate,and isopropoxate in human hair.Methods Hair samples containing etomidate,metomidate,propoxate,and isopropoxate were extracted with methanol containing the internal standard orthoxine,filtered with a 0.22 μm organic filter membrane and detected vio UPLC-MS/MS.All components were separated by using a gradient elution procedure consisting of 0.01％formic acid(1 mmol/L ammonium acetate)and acetonitrile.Positive electrospray ionization was performed using multiple reaction monitoring(MRM)mode.Results The linear relationships of etomidate,metomidate,propoxate,and isopropoxate were good in the range of 0.01～1 ng/mg(r ≥ 0.997 9),with recovery rates ranging from 87.9％to 101.5％.The accuracy was between 80.0％and 110.0％.The intra-day and inter-day relative standard deviations(RSD)were 2.9％～9.6％and 3.6％～19.9％.Conclusion This method is easy to operate and has high recovery efficiencies.It is sufficiently simple and sensitive to be applied to detect etomidate,metomidate,propoxate,and isopropoxate in hair.

Objective:To compare the effect and complications of immediate and delayed restoration after immediate implantation in the anterior tooth region of elderly patients with periodontal disease.Methods:A total of 86 elderly patients with periodontal disease who underwent anterior dental restoration admitted to the Second People′s Hospital of Huai′an from February 2019 to August 2021 were prospectively selected and divided into observation group ( n=43) and control group ( n=43) according to the order of admission. Both groups received immediate implantation, the observation group received immediate repair after surgery, the control group received delayed repair after surgery. Both groups were followed up for 12 months after implantation. The soft tissue around the implant, White Aesthetic Score (WES), Pink Esthetic Score (PES), bone resorption value, implant success rate and complications were compared between the two groups. Results:One month after repair, periodontal probing depth (PD) in observation group was lower than that in the control group ( P<0.05), and modified sulcus bleeding index (mSBI) was higher than that in the control group ( P<0.05). At 3 months after repair, PD in both groups was lower than that at 1 month after repair (all P<0.05), and PD in the observation group was lower than that in the control group ( P<0.05), while mSBI in the observation group was lower than that at 1 month after repair ( P<0.05), and there was no statistical significance between the two groups ( P>0.05). Six months after repair, WES scores and PES scores in the observation group were higher than those in the control group ( P<0.05). At 6 months after repair, the bone resorption value of the observation group was lower than that of the control group ( P<0.05). At 12 months after repair, the bone resorption values of both groups were higher than those of 6 months after repair (all P<0.05), and there was no statistical significance in the bone resorption values of the two groups at 2 months after repair ( P>0.05). At 12 months after implantation, there was no significant difference in the success rate between the two groups ( P>0.05). The total incidence of complications in the observation group (6.98%, 3/43) was lower than that in the control group (27.91%, 12/43) ( P<0.05). Conclusions:Immediate repair and delayed repair are effective in the restoration of the anterior tooth region in elderly patients with periodontal disease. Compared with delayed repair, immediate repair can reduce the alveolar bone absorption of patients, improve the soft tissue health around the implant, have better aesthetic effects, and reduce the risk of complications.

Objective:To evaluate the clinical efficacy of returning, squeezing, patting and pulling orthopaedic manipulation combined with pelvic fabric tape fixation for the treatment of postpartum pubic symphysis separation.Methods:The clinical data of 80 patients with postpartum pubic symphysis separation from June 2015 to March 2019 were retrospectively analyzed, and all of them were given orthopaedic manipulative therapy using return squeezing and patting and pulling, once a week, for a total of 3 times. After the manipulative treatment, the patients were instructed to brake the pelvic fixation straps for not less than 8 h per day, and digital X-ray (DR) pelvic radiographs or ultrasound tests were performed before and after the treatment to measure the distance between the pubic symphysis. VAS scale was used to assess the degree of pain, and the Oswestry dysfunction index (ODI) was used to assess the degree of dysfunction. The clinical efficacy was evaluated.Results:After treatment of 80 patients, 6 showed significant improvement, 69 showed improvement, and 5 showed no improvement, with a total effective rate of 93.8%. Compared with before group, the inter-pubic symphysis distance [(15.09±3.10) mm, (12.01±4.36) mm, (9.64±0.30) mm, (8.18±1.56) mm vs. (19.35±1.08) mm, F=254.64] were significantly smaller at 1 week, 2 weeks, 3 weeks, and 1 month ( P<0.001); VAS scores (2.90±1.24, 1.29±0.88, 0.84±0.43, 0.56±0.32 vs. 6.11±2.93, F=122.60) were significantly lower than before treatment ( P<0.001); ODI (28.09±4.30, 22.01±4.95, 20.64±0.41, 14.18±1.36 vs. 45.43±4.01, F=734.17) were significantly reduced ( P<0.001). Conclusion:Returning, squeezing, patting and pulling orthopaedic manipulation combined with pelvic fabric tape fixation can quickly restore the separation distance of the pubic symphysis, reduce local pain and improve lumbosacral function.

Objective To explore the effectiveness of the OKR method in improving the efficiency of the whole process of critical value management,and to provide new ideas for the implementation of medical quality improvement in other medical insti-tutions.Methods A hospital in Tianjin was selected as the study object,which used the OKR method to reform the management of critical value since January 2024.The core goal of"improving the effectiveness of critical value management"was set,and the goal was broken down into quantitative key results such as"the rate of receiving the critical value system is over 95％"and"the rate of completing the standardised writing of medical records is up to 85％".Results After the reform,several quantitative key results,such as the completion rate of critical care medical record writing,the rate of standardised medical record writing,and the rate of overtime acceptance,were all better than before.Conclusion Through the OKR method to unify the whole hospital's strategic objectives,and the dynamic adjustment of the program based on data review,the hospital's critical value management efficiency has been significantly improved,effectively guaranteeing the safety of patients,and providing new perspectives and methods for the management of critical value in other medical institutions.

Objective To explore the effectiveness of the OKR method in improving the efficiency of the whole process of critical value management,and to provide new ideas for the implementation of medical quality improvement in other medical insti-tutions.Methods A hospital in Tianjin was selected as the study object,which used the OKR method to reform the management of critical value since January 2024.The core goal of"improving the effectiveness of critical value management"was set,and the goal was broken down into quantitative key results such as"the rate of receiving the critical value system is over 95％"and"the rate of completing the standardised writing of medical records is up to 85％".Results After the reform,several quantitative key results,such as the completion rate of critical care medical record writing,the rate of standardised medical record writing,and the rate of overtime acceptance,were all better than before.Conclusion Through the OKR method to unify the whole hospital's strategic objectives,and the dynamic adjustment of the program based on data review,the hospital's critical value management efficiency has been significantly improved,effectively guaranteeing the safety of patients,and providing new perspectives and methods for the management of critical value in other medical institutions.

Ankylosing spondylitis(AS)is a chronic autoimmune disease characterized by inflammatory involvement of the axial skeleton and pathological bone formation.The T helper 17 cell(Th17 cell)subset of lym-phocytes plays a central role in mediating the inflammatory processes associated with AS.This review summarizes recent advances in the regulation of Th17 cell differentiation in AS,with a focus on the complex mechanisms governed by cytokine microenvironments,transcription factor networks,and metabolic and epigenetic regulatory pathways.Key regulatory components discussed include the IL-23/STAT3 signaling axis,the CCL20/CCR6 chemo-tactic axis,and the master transcription factor RORγt.Additionally,this review critically evaluates emerging thera-peutic strategies targeting metabolic reprogramming(e.g.,PKM2),epigenetic regulators(e.g.,JMJD3,EZH2),engineered exosome delivery systems,and modulators of metabolic enzymes.By analyzing the limitations of current treatment approaches,the review proposes future research directions emphasizing multi-target therapeutic strategies and highlights the importance of personalized medicine in achieving precise and effective treatment for AS.These developments reveal promising new avenues for modulating Th17-mediated immunity,offering transformative poten-tial for the clinical management of AS.