Objective To investigate the effects of kaempferol on the oxidative damage and apoptosis of human lens epithelial cells induced by hydrogen peroxide(H2O2),as well as its regulatory role in the Janus kinase 2/signal transducer and activator of transcription 3(JAK2/STAT3)signaling pathway.Methods Human lens epithelial cells HLE-B3 were cultured in vitro and divided into the blank group(no intervention),the model group(400 pmol?L-1 H2O2),the kaempferol group(400 μmol?L-1 H2O2+40 pmol?L-1 kaempferol),the AG490 group(400 pmol?L-1 H2O2+50 μmol?L-1 JAK2/STAT3 signaling pathway inhibitor AG490),the inhibitor group(400 pmol?L-1 H2O2+40 pmol?L-1 kaempferol+50 μmol?L-1 AG490),and the activator group(400 pmol?L-1 H2O2+40 pmol?L-1 kaempferol+0.5 μmol?L-1 JAK2/STAT3 signaling pathway activator C-A1).After 24 h of intervention,Hoechst 33258 staining was used to determine the ap-optosis rate of these cells.Malondialdehyde(MDA)and superoxide dismutase(SOD)kits were used to detect the levels of MDA and SOD.The protein expression levels of Cysteine aspartic protease 3(Caspase-3),B-cell lymphoma-2(Bcl-2),JAK2,STAT3,p-JAK2,and p-STAT3 were detected by Western blot.Results Compared with the blank group,the apop-tosis rate,the MDA level,and the protein expression levels of Caspase-3,p-JAK2,and p-STAT3 increased(all P＜0.05)in the model group,while the protein expression levels of SOD and Bcl-2 decreased(all P＜0.05).Compared with the model group,the apoptosis rate,the MDA level,and the protein expression levels of Caspase-3,p-JAK2,and p-STAT3 decreased in the kaempferol and AG490 groups(all P＜0.05),while the protein expression levels of SOD and Bcl-2 increased(all P＜0.05).Compared with the kaempferol group,the apoptosis rate,the MDA level,and the protein expression levels of Caspase-3,p-JAK2,and p-STAT3 decreased in the inhibitor group,while the protein expression levels of SOD and Bcl-2 in-creased(all P＜0.05);the changes in the above indicators in the activator group were opposite to those in the inhibitor group(all P＜0.05).Conclusion Kaempferol can protect HLE-B3 cells from H2O2-induced oxidative damage and inhibit their apoptosis by inhibiting JAK2/STAT3 signaling pathway.

Objective To assess the effectiveness of the Gasdermin D C-terminal fragment(GSDMD-CT)as a novel plasma biomarker for the clinical diagnosis of sepsis.Methods Between July 2021 and November 2024,245 patients from Tangshan Gongren Hospital were enrolled in this study.In accordance with the diagnostic criteria for sepsis and the systemic inflammatory response syndrome(SIRS),patient samples were classified into the sepsis group and the SIRS group.Meanwhile,healthy individuals were selected as the healthy control(HC)group.Sepsis patients were further categorized into the Gram-positive bacterial group,the Gram-negative bacterial group,and the fungal group based on the type of pathogen infection.The levels of GSDMD-CT,C-reactive protein(CRP),and procalcitonin(PCT)were measured in all subjects.Nonparametric tests were employed to compare the differences in various indices among different groups.The diagnostic value of GSDMD-CT in sepsis was evalu-ated by constructing the receiver operating characteristic(ROC)curve.Spearman's correlation analysis was used to examine the relationships among GSDMD-CT,CRP,and PCT.Results The plasma GSDMD-CT levels in the sepsis group 23.02(16.71,33.01)pg/mL and in the SIRS group 16.52(11.26,22.22)pg/mL were significantly higher than those in the healthy control group 7.02(4.42,11.43)pg/mL(U=-10.175,-7.890,P<0.001).Moreover,the plasma GSDMD-CT levels in the sepsis group were significantly higher than those in the SIRS group(U=-2.941,P<0.05).In the Gram-positive bacterial group,the Gram-negative bacterial group,and the fungal group,the GSDMD-CT levels were 23.01(17.16,27.51)pg/mL,23.41(16.78,35.50)pg/mL,and 16.29(14.53,56.27)pg/mL,respectively.When compared with the healthy control group,the GSDMD-CT levels in these three groups were all significantly higher(P<0.05).However,there were no significant differences in GSDMD-CT levels among these three groups(P>0.05).The area under the curve(AUC)of plasma GSDMD-CT for diagnosing sepsis was 0.881(95%confidence interval:0.833～0.929),with a Youden index(YI)of 0.695,a sensitivity of 85.0%,and a specificity of 84.5%.Spearman correlation analysis indicated a weak correlation between GSDMD-CT and C-reactive protein(CRP)(r=0.32,P<0.001)and a positive correlation between GSDMD-CT and procalci-tonin(PCT)(r=0.65,P<0.001).Conclusion GSDMD-CT exhibits significant clinical value in the diagnosis of sepsis and holds great potential as a biomarker in the diagnostic process of sepsis.

Myxedema coma is a rare condition, typically arising from long-standing, untreated hypothyroidism and triggered by factors such as infection, hypothermia, or severe illness. This report details a successfully treated case of myxedema coma with cardiac attest, accompanied by a literature review, to enhance clinical awareness and improve the diagnosis and management of this critical condition.

Objective To investigate the effects of kaempferol on the oxidative damage and apoptosis of human lens epithelial cells induced by hydrogen peroxide(H2O2),as well as its regulatory role in the Janus kinase 2/signal transducer and activator of transcription 3(JAK2/STAT3)signaling pathway.Methods Human lens epithelial cells HLE-B3 were cultured in vitro and divided into the blank group(no intervention),the model group(400 pmol?L-1 H2O2),the kaempferol group(400 μmol?L-1 H2O2+40 pmol?L-1 kaempferol),the AG490 group(400 pmol?L-1 H2O2+50 μmol?L-1 JAK2/STAT3 signaling pathway inhibitor AG490),the inhibitor group(400 pmol?L-1 H2O2+40 pmol?L-1 kaempferol+50 μmol?L-1 AG490),and the activator group(400 pmol?L-1 H2O2+40 pmol?L-1 kaempferol+0.5 μmol?L-1 JAK2/STAT3 signaling pathway activator C-A1).After 24 h of intervention,Hoechst 33258 staining was used to determine the ap-optosis rate of these cells.Malondialdehyde(MDA)and superoxide dismutase(SOD)kits were used to detect the levels of MDA and SOD.The protein expression levels of Cysteine aspartic protease 3(Caspase-3),B-cell lymphoma-2(Bcl-2),JAK2,STAT3,p-JAK2,and p-STAT3 were detected by Western blot.Results Compared with the blank group,the apop-tosis rate,the MDA level,and the protein expression levels of Caspase-3,p-JAK2,and p-STAT3 increased(all P＜0.05)in the model group,while the protein expression levels of SOD and Bcl-2 decreased(all P＜0.05).Compared with the model group,the apoptosis rate,the MDA level,and the protein expression levels of Caspase-3,p-JAK2,and p-STAT3 decreased in the kaempferol and AG490 groups(all P＜0.05),while the protein expression levels of SOD and Bcl-2 increased(all P＜0.05).Compared with the kaempferol group,the apoptosis rate,the MDA level,and the protein expression levels of Caspase-3,p-JAK2,and p-STAT3 decreased in the inhibitor group,while the protein expression levels of SOD and Bcl-2 in-creased(all P＜0.05);the changes in the above indicators in the activator group were opposite to those in the inhibitor group(all P＜0.05).Conclusion Kaempferol can protect HLE-B3 cells from H2O2-induced oxidative damage and inhibit their apoptosis by inhibiting JAK2/STAT3 signaling pathway.

Objective To assess the effectiveness of the Gasdermin D C-terminal fragment(GSDMD-CT)as a novel plasma biomarker for the clinical diagnosis of sepsis.Methods Between July 2021 and November 2024,245 patients from Tangshan Gongren Hospital were enrolled in this study.In accordance with the diagnostic criteria for sepsis and the systemic inflammatory response syndrome(SIRS),patient samples were classified into the sepsis group and the SIRS group.Meanwhile,healthy individuals were selected as the healthy control(HC)group.Sepsis patients were further categorized into the Gram-positive bacterial group,the Gram-negative bacterial group,and the fungal group based on the type of pathogen infection.The levels of GSDMD-CT,C-reactive protein(CRP),and procalcitonin(PCT)were measured in all subjects.Nonparametric tests were employed to compare the differences in various indices among different groups.The diagnostic value of GSDMD-CT in sepsis was evalu-ated by constructing the receiver operating characteristic(ROC)curve.Spearman's correlation analysis was used to examine the relationships among GSDMD-CT,CRP,and PCT.Results The plasma GSDMD-CT levels in the sepsis group 23.02(16.71,33.01)pg/mL and in the SIRS group 16.52(11.26,22.22)pg/mL were significantly higher than those in the healthy control group 7.02(4.42,11.43)pg/mL(U=-10.175,-7.890,P<0.001).Moreover,the plasma GSDMD-CT levels in the sepsis group were significantly higher than those in the SIRS group(U=-2.941,P<0.05).In the Gram-positive bacterial group,the Gram-negative bacterial group,and the fungal group,the GSDMD-CT levels were 23.01(17.16,27.51)pg/mL,23.41(16.78,35.50)pg/mL,and 16.29(14.53,56.27)pg/mL,respectively.When compared with the healthy control group,the GSDMD-CT levels in these three groups were all significantly higher(P<0.05).However,there were no significant differences in GSDMD-CT levels among these three groups(P>0.05).The area under the curve(AUC)of plasma GSDMD-CT for diagnosing sepsis was 0.881(95%confidence interval:0.833～0.929),with a Youden index(YI)of 0.695,a sensitivity of 85.0%,and a specificity of 84.5%.Spearman correlation analysis indicated a weak correlation between GSDMD-CT and C-reactive protein(CRP)(r=0.32,P<0.001)and a positive correlation between GSDMD-CT and procalci-tonin(PCT)(r=0.65,P<0.001).Conclusion GSDMD-CT exhibits significant clinical value in the diagnosis of sepsis and holds great potential as a biomarker in the diagnostic process of sepsis.

Myxedema coma is a rare condition, typically arising from long-standing, untreated hypothyroidism and triggered by factors such as infection, hypothermia, or severe illness. This report details a successfully treated case of myxedema coma with cardiac attest, accompanied by a literature review, to enhance clinical awareness and improve the diagnosis and management of this critical condition.

Objective: To analyze the current status of latent tuberculosis infection (LTBI) among freshmen in boarding middle schools in Longgang District, Shenzhen, so as to provide reference for formulating tuberculosis prevention and control strategies in the next stage. Methods: Data for tuberculosis health examination conducted among primary and secondary school students in Longgang District of Shenzhen in September 2022 to May 2023 were utilized to analyze the latent tuberculosis infection rate, and to explore the differences in latent tuberculosis infection rate among different grades, school nature, school categories and school levels. Results: The latent tuberculosis infection rate among freshmen in boarding secondary schools in Longgang District, Shenzhen in 2022 was 2.45%. The infection rate among full middle school (6.45%) and high school (3.37%) were higher than that in boarding junior high school (0.28%), nine year education school (0) and twelve year education school (1.00%) ( P <0.01). Moreover, the infection rate of high school freshmen (2.68%) was higher than that of bording junior high school (0.33%), and the rate of public schools (2.87%) and municipal schools (3.24%) were higher than those of private schools (1.78%) and distric-level schools (2.13%) respectively, with statistical significance observed for all differences( χ 2=43.58, 25.15, 22.69, P <0.01). Conclusions The latent tuberculosis infection rate among new boarding secondary students is relatively low in Longgang District of Shenzhen. However, the infection rate is higher in high school, public and municipal school. School should fully guarantee sports participation of students, enhance students awareness of tuberculosis through health knowledge lectures, and reduce the incidence of tuberculosis among students.

An efficient vacuum suction system is a necessary prerequisite for the smooth operation of the oral diagnosis and treatment.During the use of the dental units,there is often a situation of vacuum suction weakness,resulting in the inability to discharge the mixture of blood,saliva,dental tissue and other mixtures in time,which affects the doctor's treatment field and increases the risk of aspiration pneumonia and cross-infection in patients.The working principle,pipeline system,filters and other aspects of the vacuum suction system that may affect the suction efficiency was analyzed.The causes and solutions of vacuum suction weakness were discussed,and operation suggestions were proposed to ensure the safe and effective use of equipment and ensure the safety of diagnosis and treatment.

Objective To study the antioxidant activity and free radical scavenging kinetics of Chrysanthemi flos stems and leaves,and online screen the active components related to free radical scavenging.Methods Using DPPH method and ABTS method the antioxidant activity of extracts from Chrysanthemi flos stems and leaves was observed,and the effects of different influencing factors,such as drug concentration,reaction temperature and reaction time on free radical scavenging rate were compared,the half scavenging rate(IC50)was determined.The flavonoids,such as luteolin glucuronic acid,luteolin,and caffeic acid,phenolic acids such as chlorogenic acid,neochlorogenic acid,cryptochlorogenic acid,isochlorogenic acid A,B,and C in the samples before and after the reaction were chosen as indexes,and their contents were determined by HPLC.Results The drug concentration,reaction temperature and reaction time could affect the scavenging rate of DPPH free radical and ABTS.The IC50 of DPPH and ABTS were 0.395 mg·mL-1 and 2.039 mg·mL-1 respectively.After reaction with DPPH and ABTS,the contents of the analytes above all decreased significantly,which suggested that,the components above might be the antioxidant components in Chrysanthemi flos stems and leaves.Conclusions Chrysanthemi flos Stems and leaves have good free radical scavenging activity.In this study,the kinetic characteristics of scavenging DPPH and ABTS free radicals in Chrysanthemi flos stems and leaves were preliminarily clarified,and the active components were found out.It provides an experimental basis for the future comprehensive development of Chrysanthemi flos stems and leaves.

Objective:To investigate soft-and hard-tissue changes after simultaneously labial and lingual augmented corticotomy in patients with insufficient alveolar bone thickness of lower anterior teeth both in labial and lingual side during orthodontic treatment.Methods:From January 2021 to June 2022, 10 patients [2 males and 8 females, (26.2±3.1) years old] who received orthodontic and orthognathic combined treatment from the Fourth Clinical Division, Peking University School and Hospital of Stomatology were selected. The alveolar bone thickness of lower anterior teeth both in labial and lingual side in these patients was less than 0.5 mm according to cone-beam CT examination before or during treatment, and 60 lower anterior teeth were included. The 10 patients were treated with simultaneously labial and lingual augmented corticotomy. The differences in gingival recession, papilla index and the differences in labial and lingual alveolar bone thickness of lower anterior teeth were compared.Results:Six months after surgery, the alveolar bone thicknesses at the 4 mm under cemento-enamel junction (CEJ), 8 mm under CEJ and at the apical level [labial side: (1.02±0.39), (2.22±0.89) and (4.87±1.35) mm; lingual side: (1.07±0.46), (2.31±1.04) and (3.91±1.29) mm] were significantly higher than that before surgery [labial side: (0.02±0.09), (0.06±0.21) and (2.71±1.33) mm]; lingual side: (0.14±0.29), (0.40±0.52) and (2.13±1.02) mm] ( P<0.001), respectively. The increases in alveolar bone thickness of central incisors [apical level on labial side: (2.53±1.20) mm, 8 mm under CEJ on lingual side: (2.27±1.24) mm, apical level on lingual side: (2.66±1.49) mm] and lateral incisors [apical level on labial side: (2.42±1.30) mm, 8 mm under CEJ on lingual side: (2.28±0.92) mm, apical level on lingual side: (1.94±1.15) mm] were significantly higher than that of canines [apical level on labial side: (1.52±1.47) mm, 8 mm under CEJ on lingual side: (1.17±1.09) mm,apical level on lingual side: (0.74±1.37) mm] ( P<0.01). There were no significant differences in the degree of gingival recession [labial side before surgery: (0.72±0.88) mm, lingual side before surgery: (0.80±1.09) mm; labial side 6 months after surgery: (0.72±0.81) mm,lingual side 6 months after surgery: (0.89±0.21) mm] and gingival papilla index [before surgery: 1.00(0.75, 2.00); 6 months after surgery: 1.00(1.00, 2.00) ] between pre-operation and 6 months after surgery ( P>0.05). No serious complications occurred. Conclusions:The method used in this article for simultaneously labial and lingual augmented corticotomy was safe and feasible. This surgery has positive clinical significance for the stability of the periodontal tissue in orthodontic treatment for patients with alveolar bone thickness less than 0.5 mm of lower anterior teeth both in labial and lingual side.