OBJECTIVE: To evaluate the short-term clinical efficacy of external fixation and internal fixation with steel plate in the treatment of unstable distal radius fractures (AO-23C type), based on the principles of Chinese osteosynthesis (CO). METHODS: Forty-eight patients with unstable distal radius fractures between January 2022 and February 2023 were retrospectively analyzed and divided into the CO external fixation group and internal fixation group. CO external fixation group consisted of 25 patients, including 7 males and 18 females, aged from 37 to 56 years old with an average of ( 52.6±11.3) years old. Among them, there were 7 patients of traffic accidents and 18 patients of falls, resulting in a total of 25 patients of closed fractures and no open fractures, the treatment was conducted using closed reduction and CO external fixation. The internal fixation group consisted of 23 patients, comprising 8 males and 15 females, age ranged from 41 to 59 years old, with an average age of(53.3±13.7) years old. Among them, 8 patients resulted from car accidents while the remaining 15 patients were caused by falls. All 23 patients were closed fractures without any open fractures observed. The technique of open reduction and internal fixation with steel plate was employed. The perioperative data, including injury-operation time, operation duration, blood loss, and length of hospital stay, were assessed in both groups. Additionally, the QuickDASH score and visual analogue scale (VAS) were evaluated. Range of motion and grip strength assessment, imaging findings such as palmar inclination angle, ulnar declination angle, radius length, articular surface step, intra-articular space measurements were also examined along with any complications. RESULTS: The follow-up duration ranged from 0 to 24 months, with an average duration of (16.0±3.8) months. The CO external fixation exhibited significantly shorter time from injury to operation (2.4±3.3) d vs (7.4±3.7) d, shorter operation duration (56.27±15.23) min vs (74.10±5.26) min, lower blood loss (14.52±6.54) ml vs (32.32±10.03) ml, and reduced hospitalization days (14.04±3.24 )d vs (16.45±3.05) d compared to the internal fixation group (P<0.05). The QuickDASH score at 12 months post-operation was (8.21±1.64) in the CO external fixation group, while no significant difference was observed in the internal fixation group (7.04±3.64), P>0.05. There were no statistically significant differences in VAS between two groups at 6 weeks, as well as 1 and 3 months post-surgery (P>0.05). Additionally, there were no significant disparities observed in terms of range of motion and grip strength between two groups at the 2-year follow-up after the operation (P>0.05). After 12 months of surgery, the CO external fixation group exhibited a significantly smaller palmar inclination angle (17.90±2.18) ° vs (19.87±3.21) °, reduced articular surface step (0.11±0.03) mm vs (0.17±0.02) mm, and shorter radius length (8.16±1.11) mm compared to the internal fixation group (9.59±1.02) mm, P<0.05. The ulnar deviation angle and intra-articular space did not show any significant difference between two groups (P>0.05). The reduced fell within the allowable range between the CO external fixation group (23 out of 25 cases) and the internal fixation group (21 out of 23 cases) was not statistically significant (P=0.29). There was no significant difference in complications between the two groups(P>0.05). CONCLUSION Both the CO external fixation and open reduction with plate internal fixation demonstrate clinical efficacy in managing unstable distal radius fractures. The CO external fixation offers advantages in shorter injury-to-operation times, reduced intraoperative blood loss, and decreased surgical durations, while radial shortening is more effectively controlled by internal fixation.
Humans ; Male ; Female ; Middle Aged ; Radius Fractures/physiopathology* ; Adult ; Bone Plates ; Fracture Fixation, Internal/methods* ; External Fixators ; Retrospective Studies ; Fracture Fixation/methods* ; Wrist Fractures

The genome tagging project (GTP) plays a pivotal role in addressing a critical gap in the understanding of protein functions. Within this framework, we successfully generated a human influenza hemagglutinin-tagged sperm-specific protein 411 (HA-tagged Ssp411) mouse model. This model is instrumental in probing the expression and function of Ssp411. Our research revealed that Ssp411 is expressed in the round spermatids, elongating spermatids, elongated spermatids, and epididymal spermatozoa. The comprehensive examination of the distribution of Ssp411 in these germ cells offers new perspectives on its involvement in spermiogenesis. Nevertheless, rigorous further inquiry is imperative to elucidate the precise mechanistic underpinnings of these functions. Ssp411 is not detectable in metaphase II (MII) oocytes, zygotes, or 2-cell stage embryos, highlighting its intricate role in early embryonic development. These findings not only advance our understanding of the role of Ssp411 in reproductive physiology but also significantly contribute to the overarching goals of the GTP, fostering groundbreaking advancements in the fields of spermiogenesis and reproductive biology.
Animals ; Female ; Humans ; Male ; Mice ; Spermatids/metabolism* ; Spermatogenesis/physiology* ; Spermatozoa/metabolism* ; Thioredoxins/genetics*

OBJECTIVE: To explore the safety and efficacy of high-dose etoposide (VP-16) combined with recombinant human granulocyte colony-stimulating factor (rhG-CSF) as salvage mobilization for peripheral blood stem cells (PBSC) in newly diagnosed multiple myeloma (NDMM) patients. METHODS: From April 2021 to May 2023, eight NDMM patients who had failed to yield sufficient PBSC during initial mobilization with high-dose cyclophosphamide (CTX) combined with rhG-CSF underwent salvage mobilization with 1.2 g/m2 etoposide combined with rhG-CSF 10 μg/(kg·d). The effects and adverse reactions of initial mobilization and salvage mobilization were analyzed. RESULTS: For salvage mobilization and initial mobilization, the numbers of PBSC collections were 16 and 18, respectively. The mean value of total collected CD34⁺ cells were (11.90±5.75)×10⁶/kg and (1.67±0.75)×10⁶/kg (P =0.0010) in salvage mobilization group and initial mobilization group, respectively. The proportion of patients with a total collection of CD34⁺ cell count≥2×10⁶/kg were 100% and 37.5% (P =0.0625), and the proportion of patients with a total collection of CD34⁺ cell count≥5×10⁶/kg were 87.5% and 0% (P =0.0156) in salvage mobilization group and initial mobilization group, respectively. For five patients who underwent high-dose CTX initial mobilization but had a total CD34⁺ cell count < 2×10⁶/kg, successful collection was achieved through salvage mobilization with high-dose VP-16. Salvage mobilization with high-dose VP-16 was scheduled 2-3 weeks after failure of CTX mobilization. Adverse reactions of high-dose VP-16 mobilization did not increase compared to the initial mobilization with high-dose CTX. CONCLUSION As a salvage mobilization regimen, VP-16 1.2 g/m² combined with rhG-CSF is safe and highly effective in NDMM patients who failed to initial mobilization with high-dose CTX combined with rhG-CSF.
Humans ; Multiple Myeloma/therapy* ; Etoposide/therapeutic use* ; Hematopoietic Stem Cell Mobilization/methods* ; Cyclophosphamide/therapeutic use* ; Granulocyte Colony-Stimulating Factor ; Salvage Therapy ; Peripheral Blood Stem Cells ; Male ; Middle Aged ; Female ; Peripheral Blood Stem Cell Transplantation

Objective： The aim of this study is to explore the predictive value of biparametric magnetic resonance imaging(bpMRI)for pelvic lymph node metastasis in prostate cancer patients with PSA≤20 μg/L and establish a nomogram. Methods： The imaging data and clinical data of 363 patients undergoing radical prostatectomy and pelvic lymph node dissection in the First Affiliated Hospital of Nanjing Medical University from July 2018 to December 2023 were retrospectively analyzed. Univariate analysis and multivariate logistic regression were used to screen independent risk factors for pelvic lymph node metastasis in prostate cancer, and a nomogram of the clinical prediction model was established. Calibration curves were drawn to evaluate the accuracy of the model. Results： Multivariate logistic regression analysis showed extrocapusular extension (OR=8.08,95%CI=2.62－24.97, P<0.01), enlargement of pelvic lymph nodes (OR=4.45,95%CI=1.16－17.11,P=0.030), and biopsy ISUP grade(OR=1.97,95%CI=1.12－3.46, P=0.018)were independent risk factors for pelvic lymph node metastasis. The C-index of the prediction model was 0.834, which indicated that the model had a good prediction ability. The actual value of the model calibration curve and the prediction probability of the model fitted well, indicating that the model had a good accuracy. Further analysis of DCA curve showed that the model had good clinical application value when the risk threshold ranged from 0.05 to 0.70.Conclusion： For prostate cancer patients with PSA≤20 μg/L, bpMRI has a good predictive value for the pelvic lymph node metastasis of prostate cancer with extrocapusular extension, enlargement of pelvic lymph nodes and ISUP grade≥4.
Humans ; Male ; Prostatic Neoplasms/diagnostic imaging* ; Lymphatic Metastasis ; Retrospective Studies ; Nomograms ; Prostate-Specific Antigen/blood* ; Lymph Nodes/pathology* ; Pelvis ; Predictive Value of Tests ; Prostatectomy ; Lymph Node Excision ; Risk Factors ; Magnetic Resonance Imaging ; Logistic Models ; Middle Aged ; Aged

Endosomes are characterized by the presence of various phosphoinositides that are essential for defining the membrane properties. However, the interplay between endosomal phosphoinositides metabolism and innate immunity is yet to be fully understood. Here, our findings highlight the evolutionary continuity of RAB-10/Rab10's involvement in regulating innate immunity. Upon infection of Caenorhabditis elegans with Pseudomonas aeruginosa, an increase in RAB-10 activity was observed in the intestine. Conversely, when RAB-10 was absent, the intestinal diacylglycerols (DAGs) decreased, and the animal's response to the pathogen was impaired. Further research revealed that UNC-16/JIP3 acts as an RAB-10 effector, facilitating the recruitment of phospholipase EGL-8 to endosomes. This leads to a decrease in endosomal phosphatidylinositol 4,5-bisphosphate (PI(4,5)P2) and an elevation of DAGs, as well as the activation of the PMK-1/p38 MAPK innate immune pathway. It is noteworthy that the dimerization of UNC-16 is a prerequisite for its interaction with RAB-10(GTP) and the recruitment of EGL-8. Moreover, we ascertained that the rise in RAB-10 activity, due to infection, was attributed to the augmented expression of LET-413/Erbin, and the nuclear receptor NHR-25/NR5A1/2 was determined to be indispensable for this increase. Hence, this study illuminates the significance of endosomal PI(4,5)P2 catabolism in boosting innate immunity and outlines an NHR-25-mediated mechanism for pathogen detection in intestinal epithelia.
Animals ; Caenorhabditis elegans/genetics* ; Endosomes/immunology* ; Caenorhabditis elegans Proteins/immunology* ; Phosphatidylinositol 4,5-Diphosphate/immunology* ; Immunity, Innate ; Pseudomonas aeruginosa/immunology* ; rab GTP-Binding Proteins/genetics* ; Diglycerides/metabolism*

Objective To explore the postmortem diffusion rule of Aconitum alkaloids and their metabo-lites in poisoned rabbits,and to provide a reference for identifying the antemortem poisoning or post-mortem poisoning of Aconitum alkaloids.Methods Twenty-four rabbits were sacrificed by tracheal clamps.After 1 hour,the rabbits were administered with aconitine LD50 in decocting aconite root powder by intragastric administration.Then,they were placed supine and stored at 25℃.The biological samples from 3 randomly selected rabbits were collected including heart blood,peripheral blood,urine,heart,liver,spleen,lung and kidney tissues at 0 h,4 h,8 h,12 h,24 h,48 h,72 h and 96 h after intragastric administration,respectively.Aconitum alkaloids and their metabolites in the biological samples were ana-lyzed by high performance liquid chromatography-tandem mass spectrometry(HPLC-MS/MS).Results At 4 h after intragastric administration,Aconitum alkaloids and their metabolites could be detected in heart blood,peripheral blood and major organs,and the contents of them changed dynamically with the preservation time.The contents of Aconitum alkaloids and their metabolites were higher in the spleen,liver and lung,especially in the spleen which was closer to the stomach.The average mass fraction of benzoylmesaconine metabolized in rabbit spleen was the highest at 48 h after intragastric administration.In contrast,the contents of Aconitum alkaloids and their metabolites in kidney were all lower.Aconi-tum alkaloids and their metabolites were not detected in urine.Conclusion Aconitum alkaloids and their metabolites have postmortem diffusion in poisoned rabbits,diffusing from high-content organs(stomach)to other major organs and tissues as well as the heart blood.The main mechanism is the dispersion along the concentration gradient,while urine is not affected by postmortem diffusion,which can be used as the basis for the identification of antemortem and postmortem Aconitum alkaloids poisoning.

Objective To explore the effect of modified Shaoyao Gancao Decoction combined with acupuncture on Oswestry Disability Index(ODI)of patients after surgery for osteoporotic vertebral compression fracture(OVCF).Methods A total of 94 patients with OVCF of liver-kidney deficiency and yin-blood deficiency type were randomly divided into an observation group and a control group,with 47 cases in each group.Both groups were treated with surgical treatment by percutaneous balloon kyphoplasty or percutaneous vertebroplasty.After the operation,the control group was given acupuncture therapy,and the observation group was treated with modified Shaoyao Gancao Decoction combined with acupuncture therapy.Both groups were treated for 12 weeks(3 months in total).The changes of pain visual analogue scale(VAS)score,ODI score,bone mineral density(BMD)of lumbar vertebrae 2-4(L2-4),femoral neck,Wards triangle and total hip,and serum levels of bone metabolism indicators of type I collagen C-terminal peptide(CTX-1),bone alkaline phosphatase(BALP)and blood calcium in the two groups at different observation time points after operation were observed.After treatment,the clinical efficacy of the two groups was evaluated.Results(1)After 3 months of treatment,the total effective rate of the observation group was 100.00%(47/47),and that of the control group was 87.23%(41/47).The intergroup comparison(tested by Fisher's exact test)showed that the clinical efficacy of the observation group was significantly superior to that of the control group(P＜0.01).(2)On the seventh day,first month and third month after operation,the pain VAS score and thoracolumbar function of ODI scores of the two groups were significantly lower than those at the previous observation time point(P＜0.05),and the decrease of VAS score and thoracolumbar ODI score in the observation group was significantly superior to that in the control group on the seventh day,first month and third month after operation(P＜0.05 or P＜0.01).(3)After treatment(one month after operation),the BMD values of L2-4,femoral neck,Wards triangle and total hip in the two groups were significantly higher than those before treatment(P＜0.05),and the increase of BMD values in the observation group was significantly superior to that in the control group(P＜0.01).(4)After treatment(one month after operation),the serum levels of bone metabolism indicators of CTX-1,BALP and calcium of the two groups were significantly lower than those before treatment(P＜0.05),and the decrease of serum CTX-1,BALP and calcium levels in the observation group was significantly superior to that in the control group(P＜0.01).Conclusion Modified Shaoyao Gancao Decoction combined with acupuncture exerts certain effect for the treatment of OVCF patients with liver-kidney deficiency and yin-blood deficiency type.The combined therapy can significantly relieve postoperative pain symptoms,improve BMD and bone metabolism,promote the recovery of thoracolumbar function,and effectively enhance the overall efficacy.

Objective:To investigate the immune cell differentiation-induced alveolar-capillary barrier damage in septic ARDS via cell communication.Methods:Construct septic ARDS-related WGCNA network based on transcriptomic data and identify ARDS-related genes (ARGs). Constructed septic ARDS differentiation trajectories, predicted cellular communication, and screened immunodifferentiation-related genes (IDRGs) based on single-cell sequencing data. Lasso regression analysis establish immune-related RS of ARDS. ESTIMATE, CIBERSORT, and ssGSEA assessed the immune microenvironment. Metascape, GSVA and GO enrichment analyses demonstrated RS-related signaling pathways and biological processes.Results:Cell communication between immune cells and fibroblasts/endothelial cells involves 22 signaling pathways. RS containing DSTN, SNRPA, and FGL2 were differentially expressed in healthy, sepsis, and septic ARDS patients, affecting the differentiation of immune cells, endothelial cells, and fibroblasts, and regulating the infiltration of the immune cells and immune functions. The characteristic immune cells in septic ARDS included memory B cells, plasma cells, CD8 +T, and M0; DSTN was negatively correlated with M0 ( r=-0.29, P<0.05), SNRPA was positively correlated with CD8 +T ( r=0.28, P<0.05), and FGL2 was positively correlated with memory B cells ( r=0.32, P<0.05).The immune cells that were differentially expressed between RS groups, including CD4 na?ve T cells, CD4 memory-activated T cells, regulatory T cells, γ-δ T cells, M0, and activated dendritic cells. Enrichment analysis indicated the differential expression of DSTN, SNRPA, and FGL2 affected the differentiation of immune cells, the activation of immune functions, the presentation of antigens, and the depolymerization/cutting of actin filaments. Conclusions:DSTN, SNRPA, and FGL2 affect immune-related alveolar-capillary barrier damage in septic ARDS by regulating the differentiation of immune cells, fibroblasts, and endothelial cells, and are potential biomarkers for predicting the progression of septic ARDS.

Objective To analyze the atrioventricular synchronization rate after implantation of Micra AV leadless pacemaker,and the impact of postoperative programming optimization on atrioventricular synchronization rate.Methods A prospective cohort study was conducted to select patients with complete atrioventricular block who underwent Micra AV leadless pacemaker implantation at Beijing Anzhen Hospital from August 2022 to June 2023.Programming optimization were performed at 1 week,1 month,and 3 months postoperatively,and atrioventricular synchronization rate,electrical parameters,and echocardiography were recorded.Results A total of 68 patients with complete atrioventricular block implanted with Micra AV were selected,with an average age of(68.2±9.7)years,including 47 males(69.1％).All patients were successfully implanted with Micra AV,and there were no serious postoperative complications;The average threshold,sense,and impedance parameters were stable during 1 week,1 month,and 3 months after the procedure;There was no significant difference in the EF value of postoperative echocardiography(P=0.162);The average atrioventricular synchronization rates at 1 week,1 month,and 3 months postoperatively were(75.2％vs.83.8％vs.91.6％,P=0.001).Conclusions As an mechanical atrial sensing,Micra AV requires personalized adjustment of relevant parameters;Postoperative follow-up programming optimization plays an important role in the atrioventricular synchronization and comfort level in patients with complete atrioventricular block after implantation of Micra AV leadless pacemaker.

Objective To explore the therapeutic material basis and antitussive mechanism of Ganke Formula.Methods Ultra-high performance liquid chromatography-quadrupole-time of flight mass spectrometry(UPLC-Q-TOF/MS)technology was used to analyze and identify the components of Ganke Formula in serum.30 rats were randomly divided into control group,model group,experimental-L group,experimental-M group and experimental-H group,6 rats per group.Acute bronchitis rat model was established by smoke inhalation and cold stimulus.The experimental-L,-M,-H groups were respectively given 1.86,4.66,9.32 g·kg-1(crude drug/weight)dose of Ganke Formula per day by intragastric administration for 7 days.The control group and model group were given the equal amount of normal saline.The contents of interleukin-1β(IL-1β)and tumor necrosis factor-α(TNF-α)in rat lung tissue were determined by enzyme-linked immunosorbent assay.The expressions of phosphatidylinositol 3-kinase(PI3K)and phosphorylated protein kinase B(p-Akt)in lung were detected by Western blotting.Results Twenty-six absorbed components have been identified by UPLC-Q-TOF/MS.The contents of IL-1β in control group,model group,experimental-M,-H group were(57.80±7.67),(186.48±8.50),(166.05±9.90)and(143.19±6.31)pg·mL-1;TNF-α contents were(47.14±8.55),(316.22±9.49),(68.93±7.94)and(65.93±7.10)pg·mL-1;the relative expression levels of PI3K in lung tissues were 0.38±0.05,0.97±0.10,0.68±0.15 and 0.56±0.10;the relative expression levels of p-Akt were 0.34±0.14,0.93±0.05,0.63±0.16 and 0.49±0.14,respectively.Compared with the model group,the above indicators in the experimental-H group and control group were statistically different(P＜0.01 or P＜0.05).Conclusion Ganke Formula can intervene in the expression of inflammatory and immune regulatory factors by regulating PI3K/Akt signaling pathway,improve airway inflammation,and thus exert cough relieving effects.