The disease-syndrome combination animal model in traditional Chinese medicine （TCM） andrology serves as an important bridge linking TCM theory with modern medical research， providing a key experimental platform for elucidating the 'syndrome-disease' correlation mechanism in male-specific diseases and for screening effective prescriptions. This article reviews recent progress in animal model research on common TCM andrological diseases， including prostatic diseases， sexual dysfunction， and male infertility， with a focus on analyzing the application， advantages， and disadvantages of various modeling strategies， such as immune induction， hormonal intervention， and multi-factor combination across different syndrome types. However， despite breakthroughs in model construction techniques， current research still faces several challenges， including insufficient standardization of syndrome differentiation and difficulties in quantifying TCM-specific indicators. Future studies need to optimize model evaluation systems by integrating modern technologies， in order to promote the standardization and internationalization of TCM andrology research.

ObjectiveTo evaluate the clinical efficacy of acupuncture in the treatment of adolescent depression and to explore its potential mechanisms based on functional magnetic resonance imaging （fMRI） and serum proteomics. MethodsA randomized， double-blind， sham acupuncture-controlled trial design was conducted. A total of 100 adolescents with depression were enrolled and randomly assigned to an acupuncture group and a sham acupuncture group， with 50 participants in each group. In addition， 20 healthy subjects were recruited as healthy controls. Participants in the acupuncture group received acupuncture at Baihui （GV 20）， Yintang （GV 29）， Zhongwan （CV 12）， Qihai （CV 6）， bilateral Tianshu （ST 25）， bilateral Neiguan （PC 6）， bilateral Zusanli （ST 36）， and bilateral Taichong （LR3）. The sham acupuncture group received intervention using a blunt placebo needle without skin penetration. Both groups received 30-min treatments three times per week for 4 weeks. The primary outcome was the reduction rate of the 24-item Hamilton Depression Rating Scale （HAMD-24） score. Secondary outcomes included changes in HAMD-24 scores before and after treatment， covering nine factors （anxiety/somatization， cognitive impairment， sleep disturbance， psychomotor retardation， hopelessness， fatigue， weight change， diurnal mood variation， and suicidal ideation）， response rate and remission rate after treatment， and symptom severity before and after treatment. Subgroup analyses of total HAMD-24 scores were performed according to concomitant medication use and the number of medications taken. During the study period， all adverse events were monitored and recorded to evaluate safety. Patients who volunteered and met the eligibility criteria for imaging examinations were selected to undergo brain fMRI scanning and serum proteomic analysis to investigate changes in functional connectivity among brain regions and differential proteins. ResultsA total of 49 participants in the acupuncture group and 50 participants in the sham acupuncture group were included in the efficacy analysis. Among them， 20 participants in the acupuncture group and 21 in the sham acupuncture group completed fMRI scans， while 19 participants in the acupuncture group and 21 in the sham acupuncture group completed serum proteomic analyses. After 4 weeks of treatment， the mean reduction rate of HAMD-24 score in the acupuncture group was significantly higher than that in the sham acupuncture group ［（58±24）% vs.（26±19）%， P＜0.01］. Compared to baseline， scores for anxiety/somatization， cognitive impairment， psychomotor retardation， and hopelessness， and the total HAMD-24 score significantly decreased in both groups. In addition， the acupuncture group showed significant reductions in sleep disturbance， fatigue， and suicidal ideation scores （P＜0.01）. After treatment， the response rate and remission rate were 67.35% （33/49） and 24.48% （12/49） in the acupuncture group， respectively， significantly higher than 6.00% （3/50） and 0 in the sham acupuncture group （P＜0.01）. The proportion of participants with moderate symptoms was lower， whereas the proportion with mild symptoms was higher in the acupuncture group than the sham acupuncture group （P＜0.01）. Among those receiving acupuncture alone， acupuncture combined with medication， or fewer than three medications， the total HAMD-24 scores decreased after treatment in both the acupuncture subgroup and the sham acupuncture subgroup， with significantly lower scores in the acupuncture subgroup （P＜0.01）. During the study period， four mild adverse events were reported， including one case in the acupuncture group and three cases in the sham acupuncture group； none of these events affected the continuation of treatment. fMRI results showed that acupuncture enhanced functional connectivity between the prefrontal cortex and cerebellar-limbic system-related brain regions. Proteomic analysis identified 24 differentially expressed proteins associated with acupuncture treatment， mainly enriched in pathways related to neuroinflammation and energy metabolism. ConclusionAcupuncture can significantly improve depressive symptoms in adolescents with depression. Its therapeutic effects may be achieved by modulating emotion-related brain networks and regulating pathways associated with neuroinflammation and energy metabolism.

Objective:To compare the antitumor effects of FLASH irradiation(FLASH-RT) and conventional irradiation (CONV-RT) in murine breast cancer models, alongside analyzing metabolites and metabolic pathways impacted by each treatment.Methods:Female BALB/c mice bearing breast cancer tumors were randomly assigned to three groups: FLASH-RT(625 Gy/s, 23.64 Gy), CONV-RT(0.54 Gy/s, 21.33 Gy), and Sham-RT(0 Gy/s), with single irradiation. Tumor volumes were monitored over two weeks, after which mice were euthanized, and tumor samples were collected for metabolomic analysis.Results:Statistical analysis indicated no significant difference in body weight changes between mice receiving FLASH and conventional irradiation ( P>0.05). However, compared with the sham-irradiation group, both FLASH-RT ( P<0.05) and CONV-RT ( P<0.05) resulted in statistically significant differences in tumor volume changes, demonstrating effective tumor growth suppression by both radiotherapy regimens. Metabolomic analysis revealed that FLASH-RT significantly downregulated levels of the unsaturated fatty acid oleic acid (VIP=1.867, FC=0.091) and the lipid metabolite cardiolipin (VIP=1.373, FC=0.419), while upregulating the saturated fatty acid palmitic acid(VIP=1.592, FC=3.234 3)and the lipid metabolite phosphatidylcholine(VIP=2.784, FC=4.116). Differential metabolites were predominantly enriched in lipid metabolism and amino acid metabolism pathways, suggesting energy metabolic reprogramming and membrane structural remodeling in the tumor model. Pathway enrichment analysis demonstrated significant perturbation in the glycerophospholipid metabolism pathway (KEGG pathway P<0.01), with its associated metabolite phosphatidylcholine (VIP=2.784) showing a marked increase, reaching 4.12-fold higher levels compared to the CONV-RT group..This metabolic dysregulation may reflect altered tumor cell membrane fluidity or aberrant signal transduction. Conclusions:Both FLASH-RT and CONV-RT effectively inhibit tumor growth in murine breast cancer models, with FLASH-RT exhibiting distinct immunomodulatory metabolic characteristics, and the FLASH-RT shows the clinical potential in breast cancer therapy.

This study evaluates the safety and early clinical outcomes of a novel 3D-printed titanium alloy "sleeve" component for revising fractured femoral stem prostheses in distal femoral megaprostheses without removing the fractured stem. The six patients included 2 males and 4 females, with an age range of 8-57 years. They were treated at Peking University People's Hospital between August 2020 and December 2023 and underwent revision surgery using the customized sleeve. A self-designed 3D-printed titanium alloy "sleeve" component was used for revision without removing the fractured stem, in the form of an external sleeve around the stem. Postoperative imaging was performed every three months to assess implant stability and bone integration. Functional outcomes were evaluated using the Musculoskeletal Tumor Society (MSTS)-93 score. All six patients successfully completed the surgery and follow-up, with surgical durations ranging from 120 to 230 minutes and intraoperative blood loss ranging from 150 to 800 ml. The follow-up period ranged from 6 to 46 months. At three months postoperatively, X-ray and CT imaging showed cortical bridging between the host bone and the "sleeve" component. By six months, full integration of the host cortical bone with the metal trabecular interface of the "sleeve" was observed. At the final follow-up, MSTS-93 scores ranged from 26 to 29 points, with no complications such as wound healing issues, implant loosening, fracture, infection, or degenerative arthritis. These findings suggest that 3D-printed titanium "sleeve" provide an effective, bone-preserving solution for femoral stem revision in oncologic megaprostheses, leading to favorable early stability and functional recovery.

Objective:To compare the antitumor effects of FLASH irradiation(FLASH-RT) and conventional irradiation (CONV-RT) in murine breast cancer models, alongside analyzing metabolites and metabolic pathways impacted by each treatment.Methods:Female BALB/c mice bearing breast cancer tumors were randomly assigned to three groups: FLASH-RT(625 Gy/s, 23.64 Gy), CONV-RT(0.54 Gy/s, 21.33 Gy), and Sham-RT(0 Gy/s), with single irradiation. Tumor volumes were monitored over two weeks, after which mice were euthanized, and tumor samples were collected for metabolomic analysis.Results:Statistical analysis indicated no significant difference in body weight changes between mice receiving FLASH and conventional irradiation ( P>0.05). However, compared with the sham-irradiation group, both FLASH-RT ( P<0.05) and CONV-RT ( P<0.05) resulted in statistically significant differences in tumor volume changes, demonstrating effective tumor growth suppression by both radiotherapy regimens. Metabolomic analysis revealed that FLASH-RT significantly downregulated levels of the unsaturated fatty acid oleic acid (VIP=1.867, FC=0.091) and the lipid metabolite cardiolipin (VIP=1.373, FC=0.419), while upregulating the saturated fatty acid palmitic acid(VIP=1.592, FC=3.234 3)and the lipid metabolite phosphatidylcholine(VIP=2.784, FC=4.116). Differential metabolites were predominantly enriched in lipid metabolism and amino acid metabolism pathways, suggesting energy metabolic reprogramming and membrane structural remodeling in the tumor model. Pathway enrichment analysis demonstrated significant perturbation in the glycerophospholipid metabolism pathway (KEGG pathway P<0.01), with its associated metabolite phosphatidylcholine (VIP=2.784) showing a marked increase, reaching 4.12-fold higher levels compared to the CONV-RT group..This metabolic dysregulation may reflect altered tumor cell membrane fluidity or aberrant signal transduction. Conclusions:Both FLASH-RT and CONV-RT effectively inhibit tumor growth in murine breast cancer models, with FLASH-RT exhibiting distinct immunomodulatory metabolic characteristics, and the FLASH-RT shows the clinical potential in breast cancer therapy.

This study evaluates the safety and early clinical outcomes of a novel 3D-printed titanium alloy "sleeve" component for revising fractured femoral stem prostheses in distal femoral megaprostheses without removing the fractured stem. The six patients included 2 males and 4 females, with an age range of 8-57 years. They were treated at Peking University People's Hospital between August 2020 and December 2023 and underwent revision surgery using the customized sleeve. A self-designed 3D-printed titanium alloy "sleeve" component was used for revision without removing the fractured stem, in the form of an external sleeve around the stem. Postoperative imaging was performed every three months to assess implant stability and bone integration. Functional outcomes were evaluated using the Musculoskeletal Tumor Society (MSTS)-93 score. All six patients successfully completed the surgery and follow-up, with surgical durations ranging from 120 to 230 minutes and intraoperative blood loss ranging from 150 to 800 ml. The follow-up period ranged from 6 to 46 months. At three months postoperatively, X-ray and CT imaging showed cortical bridging between the host bone and the "sleeve" component. By six months, full integration of the host cortical bone with the metal trabecular interface of the "sleeve" was observed. At the final follow-up, MSTS-93 scores ranged from 26 to 29 points, with no complications such as wound healing issues, implant loosening, fracture, infection, or degenerative arthritis. These findings suggest that 3D-printed titanium "sleeve" provide an effective, bone-preserving solution for femoral stem revision in oncologic megaprostheses, leading to favorable early stability and functional recovery.

Climate change is a significant environmental concern in the 21^st century. It can directly and indirectly affect public health, making it a major public health problem. This review focused on the relationship between meteorological factors and health-related behaviors such as physical activity, sleep, dietary behavior, and social contact behavior. The results indicated that meteorological factors such as temperature, relative humidity, wind speed, atmospheric pressure, and rainfall are associated with the four health behaviors. Physical activity levels are negatively associated with temperature, relative humidity, and rainfall. Sleep quality tends to decrease under extreme temperatures and extreme weather events. Dietary behavior is influenced by high and low temperatures, low pressure, and daylight duration, which in turn affects appetite and food intake. Social contact frequency decreases in response to extreme temperatures, increased rainfall, and extreme weather events. However, there are differences in the strength and direction of the associations between meteorological factors and health-related behaviors in various studies. Research on the combined effects of multiple meteorological factors exposure on health-related behaviors is rare, and the mechanisms underlying the associations are unclear. Therefore, there is a need for more multi-center, large-scale studies to explore the biological and behavioral mechanisms behind these associations, which will help clarify the complex effects of meteorological factors on human health behaviors and provide scientific evidence for policy-making, thereby mitigating the negative impact of climate change on public health.

Bone repair remains an important target in tissue engineering, making the development of bioactive scaffolds for effective bone defect repair a critical objective. In this study, β-tricalcium phosphate (β-TCP) scaffolds incorporated with processed pyritum decoction (PPD) were fabricated using three-dimensional (3D) printing-assisted freeze-casting. The produced composite scaffolds were evaluated for their mechanical strength, physicochemical properties, biocompatibility, in vitro pro-angiogenic activity, and in vivo efficacy in repairing rabbit femoral defects. They not only demonstrated excellent physicochemical properties, enhanced mechanical strength, and good biosafety but also significantly promoted the proliferation, migration, and aggregation of pro-angiogenic human umbilical vein endothelial cells (HUVECs). In vivo studies revealed that all scaffold groups facilitated osteogenesis at the bone defect site, with the β-TCP scaffolds loaded with PPD markedly enhancing the expression of neurogenic locus Notch homolog protein 1 (Notch1), vascular endothelial growth factor (VEGF), bone morphogenetic protein-2 (BMP-2), and osteopontin (OPN). Overall, the scaffolds developed in this study exhibited strong angiogenic and osteogenic capabilities both in vitro and in vivo. The incorporation of PPD notably promoted the angiogenic-osteogenic coupling, thereby accelerating bone repair, which suggests that PPD is a promising material for bone repair and that the PPD/β-TCP scaffolds hold great potential as a bone graft alternative.
Calcium Phosphates/chemistry* ; Animals ; Bone Regeneration ; Rabbits ; Tissue Scaffolds ; Printing, Three-Dimensional ; Humans ; Human Umbilical Vein Endothelial Cells ; Neovascularization, Physiologic ; Osteogenesis ; Tissue Engineering/methods* ; Biomimetic Materials ; Cell Proliferation ; Angiogenesis

Metabolic syndrome is a complex group of metabolic disorders with an increasing global incidence rate,posing a serious threat to human health.Sodium-glucose linked transporter 2(SGLT2)inhibitors are a new type of oral hypoglycemic drug.SGLT2 inhibitors not only lower blood glucose level in a non-insulin-dependent manner by inhibiting glucose reabsorption by renal proximal convoluted tubular epithelial cell to promote urinary glucose excretion,but also by improving islet β cell function,reducing inflammatory responses,and inhibiting oxidative stress.In addition,SGLT2 inhibitors can reduce body weight through osmotic diuresis and increase fat metabolism;reduce blood pressure by inhibiting excessive activation of sympathetic nervous system and by improving vascular function.They can also improve blood lipids by increasing degradation of triacylglycerol;reduce blood uric acid by promoting uric acid excretion in kidney and intestine,and by reducing uric acid synthesis.This article reviews the effects and mechanisms of SGLT2 inhibitors on multiple metabolic disorders in metabolic syndrome and explores their potential application in metabolic syndrome treatment.

Objective To compare the difference in the efficacies of arthroscopic microfracture operation for talar osteochondral injuries with hyperuricemia and non-hyperuricemia,and to explore the correlation be-tween blood urate level and efficacy.Methods Fifty-three patients with talar osteochondral lesions meeting the inclusion and exclusion criteria from February 2015 to August 2021 were selected as the research subjects and divided into the hyperuricemia group (22 cases) and non-hyperuricemia group (31 cases) according to whether or not the preoperative blood uric acid level exceeding 420 μmol/L.The joint range of motion (ROM),visual analog scale (VAS) score,American Foot and Ankle Surgery Society (AOFAS) score,mag-netic resonance score of cartilage repair tissue (MOCART) score and postoperative satisfaction before and af-ter surgery were compared between the two groups.Results The preoperative blood uric acid level in the hy-peruricemia group was higher than that in non-hyperuricemia group,and the difference was statistically signif-icant[(504.35±86.40)μmol/L vs.(332.56±45.80)μmol/L,P<0.05].The ROM score,VAS score and AOFAS score in postoperative 1 year follow up and last follow up in the two groups were significantly im-proved compared with before operation (P<0.001).The AOFAS scores before operation,in postoperative 1 year and postoperative last follow up in the hyperuricemia group were lower than those in the non-hyperurice-mia group (P<0.05).The VAS scores before operation and postoperative last follow up in the hyperuricemia group were higher than those in the non-hyperuricemia group (P<0.05).The uric acid level was negatively correlated with the postoperative AOFAS score (r2=0.076,P=0.041).The MOCART score in postopera-tive last follow up in the hyperuricemia group was lower than that in the non-hyperuricemia group,and the difference was statistically significant (P<0.05).The cartilage defect repair and filling degree and the fusion of repaired tissue with adjacent cartilage had statistical differences between the hyperuricemia group and non-hyperuricemia group (P<0.05).Conclusion Arthroscopic microfracture operation in treating talar osteo-chondral injuries has good clinical effect,the postoperative clinical effect in the patients with complicating hy-peruricemia is lower than that in the patients with non-hyperuricemia and the blood uric acid level is negative-ly correlated with the AOFAS score after microfracture surgery.