Objective To explore the correlation between serum iron levels and granulomatous lobular mastitis(GLM).Methods A total of 102 patients with GLM were admitted from May 2022 to May 2023.According to the disease course stage at the time of the patients' visit,they were divided into the mass stage group(29 cases),the abscess stage group(48 cases),and the remission stage group(25 cases).Compare the serum iron levels of patients with GLM at different stages.Spearman correlation analysis was used to analyze the correlation between serum iron levels and inflammatory indicators,and the changes in serum iron levels of patients before and after treatment remission were compared through follow-up.Results All the 102 GLM patients were female.The serum iron levels of patients in the abscess stage group,the mass stage group and the remission stage group were 12.8(10.20,17.50)μmol/L,12.8(10.20,17.50)μmol/L and 15.4(13.65,18.50)μmol/L,respectively.The abscess stage group was lower than the mass stage group and the remission stage group,and the difference was statistically significant(P＜0.001).The results of bivariate Spearman correlation analysis showed that the serum iron levels were moderately negatively correlated with white blood cell count,neutrophil count and the percentage of neutrophils(r=-0.336,P=0.001;r=-0.361,P=0.001;r=-0.334,P＜0.01),low intensity negative correlation with monocyte count(r=-0.214,P=0.031),moderately positively correlated with the percentage of lymphocytes,the levels of interleukin(IL)-2,IL-4,IL-10(r=0.328,P＜0.01;r=0.494,P=0.023;r=0.514,P=0.017;r=0.478,P=0.028).Serum iron levels in 45 GLM follow-up patients after treatment remission were higher than those before remission[(15.09±4.78)μmol/L vs.(10.64±4.47)μmol/L,P＜0.001].Conclusion Serum iron level is associated with disease severity,inflammatory markers such as immune cells and cytokines,and disease outcome of GLM.

Objective To evaluate the effectiveness of thermal tomography in breast cancer (BC) screening. Methods We conducted a general population-based BC screening in three regions of Hubei Province (Xiantao, Hongan, and Yangxin Districts). Participants underwent a questionnaire-based interview for baseline data collection. They then received a physical examination, thermal tomography, and ultrasound from doctors and technicians. We compared the efficacies, including sensitivity, specificity, and false-positive rates, of ultrasound and thermal tomography in BC screening. Results A total of 59 712 eligible women were included in this screening program. The BI-RADS 1, 2, 3, 4, and 5 accordance rates between the two screening methods were 0.9549, 0.8047, 0.9037, 0.3352, and 0, respectively. The overall accordance rate was 0.933 1. The kappa consistency results showed that the Cicchetti-Allison and Fleiss-Cohen kappa values were 0.7970 and 0.8583, respectively. Although the two methods had equal sensitivities, specificity was higher in thermal tomography than in ultrasound. The false-positive rate was lower in thermal tomography than in ultrasound. The area under the receiver operating characteristic (ROC) curve of thermal tomography was significantly larger than that of ultrasound. Conclusion The general consistency between thermal tomography and ultrasound in BC screening was high. Thermal tomography outperformed ultrasound in terms of specificity and diagnostic efficiency. Therefore, thermal tomography has a high application value for general population-based BC screening.

Objective To explore the correlation between serum iron levels and granulomatous lobular mastitis(GLM).Methods A total of 102 patients with GLM were admitted from May 2022 to May 2023.According to the disease course stage at the time of the patients' visit,they were divided into the mass stage group(29 cases),the abscess stage group(48 cases),and the remission stage group(25 cases).Compare the serum iron levels of patients with GLM at different stages.Spearman correlation analysis was used to analyze the correlation between serum iron levels and inflammatory indicators,and the changes in serum iron levels of patients before and after treatment remission were compared through follow-up.Results All the 102 GLM patients were female.The serum iron levels of patients in the abscess stage group,the mass stage group and the remission stage group were 12.8(10.20,17.50)μmol/L,12.8(10.20,17.50)μmol/L and 15.4(13.65,18.50)μmol/L,respectively.The abscess stage group was lower than the mass stage group and the remission stage group,and the difference was statistically significant(P＜0.001).The results of bivariate Spearman correlation analysis showed that the serum iron levels were moderately negatively correlated with white blood cell count,neutrophil count and the percentage of neutrophils(r=-0.336,P=0.001;r=-0.361,P=0.001;r=-0.334,P＜0.01),low intensity negative correlation with monocyte count(r=-0.214,P=0.031),moderately positively correlated with the percentage of lymphocytes,the levels of interleukin(IL)-2,IL-4,IL-10(r=0.328,P＜0.01;r=0.494,P=0.023;r=0.514,P=0.017;r=0.478,P=0.028).Serum iron levels in 45 GLM follow-up patients after treatment remission were higher than those before remission[(15.09±4.78)μmol/L vs.(10.64±4.47)μmol/L,P＜0.001].Conclusion Serum iron level is associated with disease severity,inflammatory markers such as immune cells and cytokines,and disease outcome of GLM.

Objective:To explore the effects of miR-21-5p exosomes derived from human umbilical cord mesenchymal stem cells on apoptosis of human granular cells.Methods:A granular cell apoptosis model was constructed by treating KGN cells with different concentrations (0 μmol/L, 30 μmol/L, 60 μmol/L, and 100 μmol/L) of phosphoramide nitrogen mustard for 48 h. The mRNA and protein levels of bax and bcl2 were detected using qPCR and Western blotting, respectively. The apoptosis rate was measured using flow cytometry to screen for the optimal concentration of phosphoramide nitrogen mustard for constructing an apoptosis model. Hsa-miR-21-5p overexpression plasmid was used for instantaneously transfecting human umbilical cord mesenchymal stem cells, and the expression level of hsa-miR-21-5p was detected by qPCR. The miR-21-5p exosomes were separated and identified by flow cytometry and electron microscope. Different concentrations (5 μg/mL, 10 μg/mL and 15 μg/mL) of miR-21 exosomes were added into successful KGN cell apoptosis model to overexpress miR-21. The mRNA and protein levels of bax and bcl2 were detected using qPCR and Western blotting, respectively. PKH-26 was used to trace the position of human granular cells. Results:The levels of bax mRNA and protein in KGN cells treated with 60 μmol/L phosphoramide nitrogen mustard were significantly higher than those in the 0 μmol/L phosphoramide nitrogen mustard group (all P<0.001), while the levels of bcl2 mRNA and protein were significantly higher than those in the 0 μmol/L phosphoramide nitrogen mustard group ( P=0.005, P<0.001). The apoptosis rate of KGN cells after 60 μmol/L phosphoramide nitrogen mustard intervention was (38.10±2.90)%, while the apoptosis rate of KGN cells after 30 μmol/L phosphoramide nitrogen mustard intervention was (16.75±2.55)%, they were all significantly higher than that of the 0 μmol/L phosphoramide nitrogen mustard intervention group ( P=0.020, P=0.006). Hsa-miR-21-5p was transiently transfected into human umbilical cord blood mesenchymal stem cells, and the expression of has-miR-21-5p was higher than that in control group detected by qPCR ( P<0.001). The positive rate of surface protein CD9, CD63 and CD81 was 14.9%, 16.4% and 31.4%. The exosome was observed as "tea tray" or "concave hemisphere" by electron microscope. The exosome labeled by PKH-26 entered the granular cells and exerted biological effects. There was no statistically significant difference in bax mRNA expression levels between the 5 μg/mL, 10 μg/mL, and 15 μg/mL empty plasmid exosomes groups and the 60 μmol/L phosphoramide nitrogen mustard group (all P>0.05). However, the expression levels of bax mRNA in the 5 μg/mL, 10 μg/mL, and 15 μg/mL miR-21-5-p exosomes groups were lower than those in the 60 μmol/L phosphoramide nitrogen mustard group ( P=0.008, P=0.003, P<0.001). However, there was no statistically significant difference in the expression of bcl2 mRNA among the groups (all P>0.05). From the perspective of protein levels, there was no statistically significant difference in BAX protein expression between the 5 μg/mL, 10 μg/mL, and 15 μg/mL empty exosomes groups and 60 μmol/L phosphoramide nitrogen mustard group (all P>0.05), while the 5 μg/mL, 10 μg/mL, and 15 μg/mL miR-21-5-p exosomes groups showed a decrease in BAX protein expression compared with the 60 μmol/L phosphoramide nitrogen mustard group, and the differences were statistically significant (all P<0.001). However, there was no statistically significant difference in the expression of BCL2 protein among the intervention groups (all P>0.05). Conclusion:Hsa-miR-21-5p exosomes derived from human umbilical cord blood mesenchymal stem cells can effectively exert the anti-apoptotic effect.

Objective:To explore the effects of miR-21-5p exosomes derived from human umbilical cord mesenchymal stem cells on apoptosis of human granular cells.Methods:A granular cell apoptosis model was constructed by treating KGN cells with different concentrations (0 μmol/L, 30 μmol/L, 60 μmol/L, and 100 μmol/L) of phosphoramide nitrogen mustard for 48 h. The mRNA and protein levels of bax and bcl2 were detected using qPCR and Western blotting, respectively. The apoptosis rate was measured using flow cytometry to screen for the optimal concentration of phosphoramide nitrogen mustard for constructing an apoptosis model. Hsa-miR-21-5p overexpression plasmid was used for instantaneously transfecting human umbilical cord mesenchymal stem cells, and the expression level of hsa-miR-21-5p was detected by qPCR. The miR-21-5p exosomes were separated and identified by flow cytometry and electron microscope. Different concentrations (5 μg/mL, 10 μg/mL and 15 μg/mL) of miR-21 exosomes were added into successful KGN cell apoptosis model to overexpress miR-21. The mRNA and protein levels of bax and bcl2 were detected using qPCR and Western blotting, respectively. PKH-26 was used to trace the position of human granular cells. Results:The levels of bax mRNA and protein in KGN cells treated with 60 μmol/L phosphoramide nitrogen mustard were significantly higher than those in the 0 μmol/L phosphoramide nitrogen mustard group (all P<0.001), while the levels of bcl2 mRNA and protein were significantly higher than those in the 0 μmol/L phosphoramide nitrogen mustard group ( P=0.005, P<0.001). The apoptosis rate of KGN cells after 60 μmol/L phosphoramide nitrogen mustard intervention was (38.10±2.90)%, while the apoptosis rate of KGN cells after 30 μmol/L phosphoramide nitrogen mustard intervention was (16.75±2.55)%, they were all significantly higher than that of the 0 μmol/L phosphoramide nitrogen mustard intervention group ( P=0.020, P=0.006). Hsa-miR-21-5p was transiently transfected into human umbilical cord blood mesenchymal stem cells, and the expression of has-miR-21-5p was higher than that in control group detected by qPCR ( P<0.001). The positive rate of surface protein CD9, CD63 and CD81 was 14.9%, 16.4% and 31.4%. The exosome was observed as "tea tray" or "concave hemisphere" by electron microscope. The exosome labeled by PKH-26 entered the granular cells and exerted biological effects. There was no statistically significant difference in bax mRNA expression levels between the 5 μg/mL, 10 μg/mL, and 15 μg/mL empty plasmid exosomes groups and the 60 μmol/L phosphoramide nitrogen mustard group (all P>0.05). However, the expression levels of bax mRNA in the 5 μg/mL, 10 μg/mL, and 15 μg/mL miR-21-5-p exosomes groups were lower than those in the 60 μmol/L phosphoramide nitrogen mustard group ( P=0.008, P=0.003, P<0.001). However, there was no statistically significant difference in the expression of bcl2 mRNA among the groups (all P>0.05). From the perspective of protein levels, there was no statistically significant difference in BAX protein expression between the 5 μg/mL, 10 μg/mL, and 15 μg/mL empty exosomes groups and 60 μmol/L phosphoramide nitrogen mustard group (all P>0.05), while the 5 μg/mL, 10 μg/mL, and 15 μg/mL miR-21-5-p exosomes groups showed a decrease in BAX protein expression compared with the 60 μmol/L phosphoramide nitrogen mustard group, and the differences were statistically significant (all P<0.001). However, there was no statistically significant difference in the expression of BCL2 protein among the intervention groups (all P>0.05). Conclusion:Hsa-miR-21-5p exosomes derived from human umbilical cord blood mesenchymal stem cells can effectively exert the anti-apoptotic effect.

Objective To explore the effects of isogenous micro-grafting(MG)technology and the combined use of botulinum toxin type A(BTX-A)on hair regeneration in mice.Methods Forty-five C57BL/6 mice were randomly divided into five groups:normal saline group(NS group),MG group(MB-0 group),MG+low-dose BTX-A group(MB-2 group),MG+medium dose BTX-A group(MB-10 group),MG+high-dose BTX-A group(MB-50 group).The growth of hair on the backs of the mice was observed after the administration of the drugs,and the hair follicles were evaluated by hematoxylin-eosin(HE)staining on the 7th,14th,and 21st days of the experiment,and the expression of vascular endothelial growth factor(VEGF)and β-catenin was evaluated by immunohisto-chemical staining on day 21.Results After treatment with micrograft and botulinum toxin type A,the skin darke-ning time was shortened(P＜0.05),and the coverage rate of new hair increased on the 14 th day(P＜0.05).Compared with the NS group,the number of hair follicles increased(P＜0.05)and the expression of VEGF andβ-catenin increased in each other group.Conclusion Isogenous micro-grafting technology combined with botuli-num toxin type A has a promotional effect on hair regeneration in mice,and the mechanism may be related to the promotion of vascular growth and activation of β-catenin signaling.

Objective To investigate the effects and mechanisms of oridonin(ORI)on human keloid-derived fi-broblasts(HKF).Methods The effects of ORI on the proliferation activity of HKF were assessed using the CCK-8 assay.The experiment was divided into control and experimental groups.Cell scratch and Transwell assays were conducted to evaluate the migration and invasion capabilities of HKF.Real-time quantitative PCR(RT-qPCR)and Western blot were used to examine the impact of ORI on the expression of extracellular matrix-related mRNA and fi-bronectin 1(FN1),α-smooth muscle actin(α-SMA),type Ⅰ collagen(COL Ⅰ),and COL Ⅲ in HKF.The ex-periment was also divided into control,model,and transforming growth factor(TGF)-β1+ORI groups.RT-qPCR and Western blot were utilized to determine the effects of ORI on the expression of TGF-β1-induced mRNA and nu-cleotide-binding oligomerization domain-like receptor protein 3(NLRP3),apoptosis-associated speck-like protein containing a CARD(ASC),Smad2,Smad3,phosphorylated Smad2(p-Smad2),and p-Smad3 in HKF.Results CCK-8 assay demonstrated that the cell inhibition rate of HKF progressively increased with increasing concentra-tions of ORI.Compared with the control group,the experimental group exhibited a significant reduction in the mi-gration area at 24 hours and a decrease in the number of invasive cells.Furthermore,there was a significant down-regulation in the expression levels of FN1,α-SMA,COL Ⅰ,and COL Ⅲ(P＜0.05).In comparison with the con-trol group,the model group showed a significant upregulation in the expression of NLRP3,ASC,Smad2,Smad3,p-Smad2,and p-Smad3(P＜0.05).Relative to the model group,the TGF-β1+ORI group demonstrated a signifi-cant downregulation in the expression of NLRP3,ASC,Smad2,Smad3,p-Smad2,and p-Smad3(P＜0.05).Conclusion ORI the proliferation,migration,and invasiveness of HKF,as well as the formation and deposition of the extracellular matrix,through the blockade of the TGF-β1/Smad signaling pathway and the NLRP3-mediated in-flammatory response.

The application of big data and artificial intelligence technology in the medical field is key to hospital informatization. In October 2018, a tertiary hospital launched a clinical intelligent application platform. The platform took AI assistant as the carrier of intelligent application, supported the role expansion, function expansion and connotation expansion of intelligent application, and layed the foundation for the construction of clinical intelligence. As of July 2022, the platform had been embedded into the outpatient, emergency and inpatient business systems with the help of AI assistant, realizing such intelligent applications as auxiliary diagnosis, auxiliary treatment, risk warning, AI medical record quality control, research entry group and infectious disease management, as well as enriching the connotation of such specialty applications as orthopedics and ear, nose and throat. The platform satisfied the integration and integration of hospital information construction and provided convenient and effective intelligent auxiliary tools for clinical use.

Objective:To analyze of the main influecing factors of mosic embryos during the preimplantation genetic test for chromosomal structural rearrangement (PGT-SR) to avoid the increase of risk of abortion and genetic abnormalities and to improve the diagnostic rate of mosic embryos.Methods:We used a retrospective cohort study to analyze 94 cycles of infertile patients undergoing PGT-SR and 551 cycles of intracytoplasmic sperm injection (ICSI) from January 2018 to December 2019 in the Reproductive Medical Center of the Maternal and Child Health Hospital. The relationship of mosic embryos was analyzed between the age, the number of oocytes, gonadotropin (Gn)/oocyte, the grade of blastocysts and chromosome carrier of different genders by the SPSS21.0 software.Results:In the PGT-SR cycle, single factor analysis found that mosaic embryos were related to age and sperm concentration ( P=0.02, P=0.04), but multivariate logistic regression analysis showed that age ( OR=3.41, 95% CI=1.34-8.66, P=0.01), sperm concentration ( OR=0.41, 95% CI=0.17-0.96, P=0.04) and chromosome carrier of different genders ( OR=2.21, 95% CI=1.04-4.70, P=0.04) were the main factors of embryo mosaicism. Conclusion:Female age, sperm concentration and chromosome carrier of different genders maybe affect the formation of mosaic embryos, providing theoretical basis for selective transfer of mosaic embryos.

Objective:To analyze of the main influecing factors of mosic embryos during the preimplantation genetic test for chromosomal structural rearrangement (PGT-SR) to avoid the increase of risk of abortion and genetic abnormalities and to improve the diagnostic rate of mosic embryos.Methods:We used a retrospective cohort study to analyze 94 cycles of infertile patients undergoing PGT-SR and 551 cycles of intracytoplasmic sperm injection (ICSI) from January 2018 to December 2019 in the Reproductive Medical Center of the Maternal and Child Health Hospital. The relationship of mosic embryos was analyzed between the age, the number of oocytes, gonadotropin (Gn)/oocyte, the grade of blastocysts and chromosome carrier of different genders by the SPSS21.0 software.Results:In the PGT-SR cycle, single factor analysis found that mosaic embryos were related to age and sperm concentration ( P=0.02, P=0.04), but multivariate logistic regression analysis showed that age ( OR=3.41, 95% CI=1.34-8.66, P=0.01), sperm concentration ( OR=0.41, 95% CI=0.17-0.96, P=0.04) and chromosome carrier of different genders ( OR=2.21, 95% CI=1.04-4.70, P=0.04) were the main factors of embryo mosaicism. Conclusion:Female age, sperm concentration and chromosome carrier of different genders maybe affect the formation of mosaic embryos, providing theoretical basis for selective transfer of mosaic embryos.