Objective To compare the efficacy and adverse reactions of doxycycline and levofloxacin in children with macrolide non-responsive mycoplasma pneumonia(MUMPP).Methods Clinical data of 240 MUMPP children admitted to our hospital from November 2023 to July 2024 were retrospectively analyzed,and they were divided into doxycycline group and levofloxacin group according to drug use,with 120 cases in each group.The efficacy of the two groups were compared,the time when body temperature dropped to nor-mal after taking antipyretics,the time when cough was reduced,the time when lung riles were resolved,the length of hospital stay,the peripheral blood indicators[WBC,neutrophilic granulocyte percentage,C reactive protein(CRP),lactate dehydrogenase(LDH),D-dimer],the lung imaging recovery and the occurrence of ad-verse reactions.Results There was no significant difference in total effective rate between doxycycline group and levofloxacin group(93.33％vs.90.00％,P＜0.05).Compared with levofloxacin group,the duration of hospital stay in doxycycline group was shorter[(6.22±2.24)d vs.(7.39±2.47)d],and the duration of lung crackles disappeared longer[(4.47±2.06)d vs.(3.50±1.79)d],with statistical significance(P＜0.05).Af-ter treatment,the neutrophil percentage,CRP and LDH levels in the two groups were lower than before treat-ment,and the differences were statistically significant(P＜0.05).There was no significant difference in the incidence of adverse reactions between doxycycline group and levofloxacin group(15.83％vs.15.00％,P＞0.05).Conclusion Both doxycycline and levofloxacin have good efficacy in MUMPP children,with low inci-dence of adverse reactions and no serious adverse reactions.

Objective To investigate whether resveratrol alleviates hyperglycemia-induced cardiomyocyte hypertrophy by enhancing the expression of silent information regulation 2 homolog 1(SIRT1)to maintain mitochondrial homeostasis.Methods Rat cardiomyocytes H9c2 cells with or without lentivirus-mediated mRNA interference of SIRT1 were cultured in high glucose(HG)and treated with resveratrol for 72 h.The changes in superoxide dismutase(SOD)activity,malondialdehyde(MDA)content,reactive oxygen species(ROS)level,and relative surface of the cells were examined,and the mRNA expressions of atrial natriuretic factor(ANF)and brain natriuretic peptide(BNP)and protein expressions of SIRT1,mitochondrial fusion related proteins optic atrophy protein 1(OPA1)and mitofusin 2,mitochondrial division related proteins dynamin-related protein 1(DRP1)and fission protein 1(FIS1),and mitophagy-related proteins BNIP3L and LC3 were detected using RT-qPCR and Western blotting.Results HG exposure significantly decreased SOD activity,increased MDA content,ROS production,relative cell surface,and the mRNA expressions of ANF and BNP in the cardiomyocytes;the protein expressions of SIRT1,OPA1,mitofusin 2 and BNIP3L and LC3-Ⅱ/LC3-Ⅰ ratio were all decreased and the protein expressions of DRP1 and FIS1 increased in HG-exposed cells(P<0.01).All these changes in HG-exposed cardiomyocytes were significantly alleviated by treatment with resveratrol(P<0.05).The protective effects of resveratrol against HG exposure in the cardiomyocytes were obviously attenuated by transfection of the cells with si-SIRT1(P<0.05).Conclusion Resveratrol inhibits hyperglycemia-induced cardiomyocyte hypertrophy by reducing oxidative stress,the mechanisms of which involve enhancement of SIRT1 protein expression,regulation of mitochondrial fusion and division balance,and promoting BNIP3L-mediated mitophagy to maintain mitochondrial homeostasis in the cells.

Objective To investigate whether resveratrol alleviates hyperglycemia-induced cardiomyocyte hypertrophy by enhancing the expression of silent information regulation 2 homolog 1(SIRT1)to maintain mitochondrial homeostasis.Methods Rat cardiomyocytes H9c2 cells with or without lentivirus-mediated mRNA interference of SIRT1 were cultured in high glucose(HG)and treated with resveratrol for 72 h.The changes in superoxide dismutase(SOD)activity,malondialdehyde(MDA)content,reactive oxygen species(ROS)level,and relative surface of the cells were examined,and the mRNA expressions of atrial natriuretic factor(ANF)and brain natriuretic peptide(BNP)and protein expressions of SIRT1,mitochondrial fusion related proteins optic atrophy protein 1(OPA1)and mitofusin 2,mitochondrial division related proteins dynamin-related protein 1(DRP1)and fission protein 1(FIS1),and mitophagy-related proteins BNIP3L and LC3 were detected using RT-qPCR and Western blotting.Results HG exposure significantly decreased SOD activity,increased MDA content,ROS production,relative cell surface,and the mRNA expressions of ANF and BNP in the cardiomyocytes;the protein expressions of SIRT1,OPA1,mitofusin 2 and BNIP3L and LC3-Ⅱ/LC3-Ⅰ ratio were all decreased and the protein expressions of DRP1 and FIS1 increased in HG-exposed cells(P<0.01).All these changes in HG-exposed cardiomyocytes were significantly alleviated by treatment with resveratrol(P<0.05).The protective effects of resveratrol against HG exposure in the cardiomyocytes were obviously attenuated by transfection of the cells with si-SIRT1(P<0.05).Conclusion Resveratrol inhibits hyperglycemia-induced cardiomyocyte hypertrophy by reducing oxidative stress,the mechanisms of which involve enhancement of SIRT1 protein expression,regulation of mitochondrial fusion and division balance,and promoting BNIP3L-mediated mitophagy to maintain mitochondrial homeostasis in the cells.

Objective To investigate the relationship between the levels of serum CXC chemokine ligand 1(CXCL1)and phosphatase and tensin homology deleted on chromosome ten(PTEN)mRNA in patients with acute cerebral infarction and the severity and prognosis of the disease.Methods A total of 102 patients with acute cerebral infarction admitted to the hospital from March 2022 to March 2023 were enrolled in the study as the experimental group,and 85 healthy people who underwent physical examination in the hospital during the same period were enrolled as the control group.Serum samples of fasting venous blood were collected from people enrolled in the study.The serum CXCL1 level was detected by using enzyme-linked immunosorbent as-say.Real-time fluorescence quantitative PCR(qPCR)was used to detect the relative expression level of serum PTEN mRNA(hereinafter referred to as the level).According to the National Institutes of Health Stroke Scale(NIHSS)score,the patients in the experimental group were divided into three groups with different de-grees of neurological impairment(severe group,moderate group and mild group),and the serum CXCL1 and PTEN mRNA levels of the three groups were compared.According to the cerebral infarction volume evaluated by computed tomography(CT)or magnetic resonance imaging(MRI),the patients in the experimental group were divided into small infarction group,medium infarction group and large infarction group,and the serum CXCL1 and PTEN mRNA levels of the three groups were compared.According to the modified Rankin scale(mRS),the patients in the experimental group were divided into the good prognosis group and the poor prog-nosis group,and the serum CXCL1 and PTEN mRNA levels were compared between the two groups.Pearson correlation was used to analyze the correlation between serum CXCL1 and PTEN mRNA levels in patients with acute cerebral infarction.Multivariate Logistic regression analysis was used to analyze the factors affect-ing the prognosis of patients with acute cerebral infarction.Results The proportion of patients with a history of diabetes and hypertension and serum CXCL1 and PTEN mRNA levels in the experimental group were high-er than those in the control group,and the differences were statistically significant(P＜0.05).With the in-crease of the degree of neurological impairment,the serum CXCL1 level and PTEN mRNA level increased,and there were significant differences among the severe group,moderate group,and mild group(P＜0.05).With the increase of infarction size,the serum levels of CXCL1 and PTEN mRNA increased,and there were signifi-cant differences among small infarction group,medium infarction group,and large infarction group(P＜0.05).Compared with the good prognosis group,the poor prognosis group had significantly higher proportions of patients with a history of diabetes,a history of hypertension,and serum CXCL1 and PTEN mRNA levels(P＜0.05).There was a positive correlation between serum CXCL1 level and PTEN mRNA level in patients with acute cerebral infarction(r=0.479,P＜0.001).The levels of serum CXCL1 and PTEN mRNA,history of diabetes and hypertension were all influencing factors for the prognosis of patients with acute cerebral in-farction(P＜0.05).Conclusion The levels of serum CXCL1 and PTEN mRNA in patients with acute cere-bral infarction increase,which can be used to evaluate the disease severity and prognosis of patients.

Objective:To evaluate the safety and feasibility of neoadjuvant chemotherapy (NACT) combined with radical surgery for elderly patients with locally advanced gastric cancer (LAGC).Methods:One hundred and fourty eight patients with LAGC after NACT and gastrectomy between 2012 and 2020 were retrospectively reviewed. They were divided into two groups: (1) <65 years old (111 cases) and (2) ≥65 years old (37 cases) and their clinicopathological and prognostic data were compared.Results:There was no significant difference between the two groups in the incidence of hematological complications such as anemia ( χ2=0.235, P=0.628), leukopenia ( χ2=0.613, P=0.434), neutropenia ( χ2=0.011, P=0.918) and thrombocytopenia ( χ2=0.253, P=0.615) and non-hematological complications such as nausea ( χ2=0.092, P=0.762), vomiting ( χ2=0.166, P=0.683), diarrhea ( χ2=0.015, P=0.902) and mucositis ( χ2=0.199, P=0.766) due to NACT. There were no statistical differences between the older patients and the younger in operation duration ( t=0.270, P=0.604), intraoperative bleeding ( t=1.140, P=0.250) and R 0 resection rate ( χ2=0.105, P=0.750). The incidence of postoperative complications was 25.2% and 37.8% in the younger patients and the olders ( χ2=2.172, P=0.141). Pleural effusion ( χ2=7.007, P=0.008) and pulmonary infection ( χ2=10.204, P=0.001) was significantly higher in the older patients than in the youngers. The 3-year progression-free survival rate ( t=0.494, P=0.482) and 3-year overall survival rate ( t=0.013, P=0.908) were comparable between the two groups. Conclusions:NACT combined with radical surgery is safe and effective in elderly patients with LAGC, except for higher perioperative pulmonary-related complications.

OBJECTIVE: To observe the ferroptosis triggered by in different pathways during cecal ligation and puncture (CLP)-induced liver injury in septic mice, and to investigate whether mitochondrial aldehyde dehydrogenase 2 (ALDH2) can alleviate sepsis-induced liver injury by inhibiting ferroptosis. METHODS: Sixty 8-week-old male C57BL/6J mice were randomly divided into sham operation group (Sham group), CLP group, ferroptosis inhibitor ferrostain-1 (Fer-1) group, ALDH2-specific agonist Alda-1 group, iron chelator deferasirox Fe³⁺ chelate (DXZ) group and dimethyl sulfoxide (DMSO) group, with 10 mice in each group. The septic liver injury was induced by CLP in mice model. In the Sham group, only laparotomy was performed without ligation and puncture of the cecum. 10 mL/kg 5% DMSO, 5 mg/kg Fer-1, 50 mg/kg DXZ and 10 mg/kg Alda-1 were injected intraperitoneally 1 hour before CLP in the DMSO, Fer-1, DXZ and Alda-1 groups respectively. At 24 hours after operation, eyeball blood and liver tissue were collected from anesthetized mice. The hepatic structure and inflammatory infiltration were observed by hematoxylin-eosin (HE) staining. The levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST) in serum, the levels of hepatic malondialdehyde (MDA), superoxide dismutase (SOD) and reactive oxygen species (ROS) were detected. Western blotting was used to detect the protein expressions of ALDH2, ferroptosis-related proteins glutathione peroxidase 4 (GPX4), ferroptosis suppressor protein 1 (FSP1) and transferrin receptor 1 (TFR1) in liver tissue. RESULTS: Compared with Sham group, the mice in CLP group showed varying degrees of congestion, disorganized hepatocyte arrangement, inflammatory cell infiltration at 24 hours after operation. Compared with the CLP group, the mice in the Fer-1 group, DXZ group and Alda-1 group liver morphology, liver injury and inflammatory cell infiltration was improved. Compared with Sham group, the serum levels of ALT and AST, the contents of MDA and ROS, and the expression of TFR1 protein in CLP group were significantly increased, while the activity of SOD and the expressions of ALDH2, GPX4 and FSP1 protein in CLP group were significantly decreased. Compared with CLP group, serum ALT and AST levels in Fer-1, DXZ and Alda-1 groups were significantly decreased [ALT (U/L): 45.76±10.81, 37.30±2.98, 36.40±12.75 vs. 73.06±12.20, AST (U/L): 61.57±2.69, 52.41±6.92, 56.05±8.29 vs. 81.59±5.46, all P < 0.05], and the contents of MDA, ROS and TFR1 protein expression in liver tissue were significantly decreased [MDA (μmol/L): 0.60±0.10, 0.57±0.18, 0.83±0.39 vs. 1.61±0.30, ROS (fluorescence intensity): 270.34±9.64, 276.02±62.33, 262.05±18.55 vs. 455.38±36.07, TFR1/GAPDH: 0.90±0.04, 1.01±0.09, 0.55±0.08 vs. 1.18±0.06, all P < 0.05], and the SOD activity and ALDH2, GPX4 and FSP1 protein expressions in liver tissue were significantly increased [SOD (kU/g): 88.77±8.20, 88.37±4.47, 93.43±7.24 vs. 50.27±3.57, ALDH2/GAPDH: 1.10±0.15, 1.02±0.07, 1.14±0.07 vs. 0.70±0.04, GPX4/GAPDH: 1.02±0.12, 0.99±0.08, 1.05±0.19 vs. 0.71±0.10, FSP1/GAPDH: 1.06±0.24, 1.02±0.08, 0.93±0.09 vs. 0.66±0.03, all P < 0.05]. There was no significant difference in the parameters between DMSO group and CLP group. CONCLUSIONS Both GPX4 and FSP1 mediated ferroptosis are involved in liver injury in septic mice. Activation of ALDH2 and inhibition of ferroptosis can alleviatehepatic injury. ALDH2 may play a protective role by regulating FSP1 and GPX4 mediated ferroptosis.
Mice ; Male ; Animals ; Aldehyde Dehydrogenase, Mitochondrial ; Ferroptosis ; Reactive Oxygen Species ; Chemical and Drug Induced Liver Injury, Chronic ; Dimethyl Sulfoxide ; Mice, Inbred C57BL ; Sepsis ; Disease Models, Animal

Objective:To explore the effect of traditional Chinese medicine comprehensive nursing on psychological state, skin degree and quality of life in patients with rectal cancer.Methods:A total of 88 cases with rectal cancer chemotherapy in Nanyang Nanshi Hospital from August 2017 to August 2020 were as the research object, all patients were divided into two groups with 44 cases in each group by random number table method. The control group received routine nursing, the observation group was given traditional Chinese medicine comprehensive nursing based on the control group. The more satisfaction with the two groups, psychological state before and after nursing, cancer fatigue degree, the quality of life, adverse reaction after chemotherapy were compared between the two groups.Results:The satisfaction score of the observation group was (80.24±9.02) points, which was higher than that of the control group (74.64±9.02) points, there was statistically significant ( t value was 2.912, P<0.05). The probability of adverse reactions was 4.55%(2/44), which was lower than that of the control group (20.45%, 9/44), there was statistically significant ( χ2 value was 5.090, P<0.05). There were no differences in psychological state, cancer fatigue degree and quality of life between the two groups before intervention ( P>0.05). The scores of anxiety, depression, cognitive fatigue, body fatigue, emotional fatigue and behavioral fatigue after intervention were (58.24±3.56), (57.82±3.36), (5.64±1.32), (6.56±0.88), (6.04±0.64), (5.98±1.52) points in the observation group, and (60.12±3.72), (59.27±3.12), (6.28±1.48), (7.24±0.90), (6.48±0.72), (6.78±1.56) points in the control group, there were statistically significant( t values were 2.141-3.583, P<0.05).The quality of life score of the observation group after intervention was (211.68±17.12) points, which was higher than that of the control group (199.08±17.36) points, there was statistically significant( t value was 3.428, P<0.05). Conclusions:Comprehensive nursing of traditional Chinese medicine for patients with rectal cancer chemotherapy can make patients more satisfied with nursing service, relieve negative emotions and cancer fatigue, reduce the occurrence of adverse reactions to chemotherapy, and promote the improvement of patients' quality of life. It is worth popularizing.

ObjectiveTo explore the mental health status and relevant factors among community residents during the normalization stage of prevention and control of COVID-19. MethodsFrom August 28 to September 7， 2020， an online cross-sectional survey using snowball sampling was conducted among community residents via Wenjuanxing platform， and their mental health status were assessed using Patients' Health Questionnaire Depression Scale-9 item（PHQ-9）， Generalized Anxiety Disorder-7 item（GAD-7）， Insomnia Severity Index（ISI） and Chinese Perceived Stress Scale（CPSS）. ResultsAmong the 476 community residents， the detection rates of depression， anxiety， insomnia and high perceived stress were 32.35%， 21.22%， 24.58% and 48.74%， respectively. In terms of gender， the detection rate of high perceived stress was higher in male than in female（χ²=5.269）； in terms of marital status， the detection rates of depression and anxiety among the unmarried， divorced or widowed residents was higher than those of the married residents（χ²=5.251， 8.851）； in terms of mental health service status， the detection rates of depression， anxiety， insomnia and high perceived stress among residents with mental health service needs was higher than those among residents without the needs（χ²=46.316， 66.934， 20.153， 21.576）， with statistical significance（P<0.05 or 0.01）. Correlation analysis showed that the age of community residents was negatively correlated with CPSS score（r=-0.171， P<0.01）， sleep duration was negatively correlated with PHQ-9， GAD-7 and ISI scores（r=-0.210， -0.247， -0.297， P<0.01）， and time spent following news on COVID-19 per day was negatively correlated with ISI score（r=-0.097， P<0.05）. ConclusionDuring the normalization stage of prevention and control of COVID-19， the majority of community residents experience the symptoms of depression， anxiety， insomnia and high perceived stress. Male and younger residents are more likely to experience high levels of perceived stress. Those with shorter sleep duration and needs for mental health services are more likely to experience symptoms of depression， anxiety and insomnia， and those with short time spent following news on COVID-19 are more likely to experience insomnia symptom.

Cognitive impairment is one of the three primary symptoms of schizophrenic patients and shows important value in early detection and warning for high-risk individuals. To study the specifics of electroencephalogram (EEG) in patients with schizophrenia under the cognitive load, we collected EEG signals from 17 schizophrenic patients and 19 healthy controls, extracted signals of each band based on wavelet transform, calculated the characteristics of nonlinear dynamic and functional brain networks, and automatically classified the two groups of people by using a machine learning algorithm. Experimental results indicated that the correlation dimension and sample entropy showed significant differences in α, β, θ, and γ rhythm of the Fp1 and Fp2 electrodes between groups under the cognitive load. These results implied that the functional disruptions in the frontal lobe might be the important factors of cognitive impairments in schizophrenic patients. Further results of the automatic classification analysis indicated that the combination of nonlinear dynamics and functional brain network properties as the input characteristics of the classifier showed the best performance, with the accuracy of 76.77%, sensitivity of 72.09%, and specificity of 80.36%. The results of this study demonstrated that the combination of nonlinear dynamics and function brain network properties may be potential biomarkers for early screening and auxiliary diagnosis of schizophrenia.

Objective To investigate the characteristics of 18F-Alfatide II PET/CT imaging in normal breasts and breast cancer lesions.Methods From March 2016 to August 2017,22 female patients(age:(52±10)years)with suspected breast malignant nodules or masses were prospectively enrolled.All patients underwent 18F-Alfatide II PET/CT imaging prior to biopsy or surgery.The imaging characteristics of normal breasts were assessed visually and the difference of maximum standardized uptake value(SUVmax)in normal breasts and uterus between patients with and without menopause was compared,SUVmax of cancer lesions and normal breasts was also compared.Breast cancer lesions were classified according to the distribution characteristics of radioactive uptake,and molecular subtypes ware determined by immunohistochemistry and fluorescence in situ hybridization.The SUVmax of different morphological and molecular subtypes were analyzed.Two-sample t test and Pearson or Spearman correlation analysis were used to analyze the data.Results There were 23 breast cancer lesions(one patient had bilateral breast cancer lesions and one had a history of one-side breast resection),20 normal breasts and 21 normal uteruses.Those normal breasts and uteruses didn't show any malignant change after being followed up for more than 1 year(one patient had uterine fibroids resection).There was a slight increase of radioactivity uptake in the cord-like connective tissue region at the margin of the gland in 11 mammary glands,and the SUVmax was higher than that of glandular tissue in the central region(1_81±0.67 vs 0.79±0.37;t = 6.771,P<0.00l).Of the 11 cases,except for one patient whose uterus was removed,the other 10 patients were accompanied by increased diffuse radioactivity of the uterus.SUVmax of 19 normal breast connective tissues(1.31±0.80)and uterus(3.80+1.79)were positively correlated(r = 0.785,P<0.05).For patients with/without menopause(n= 11 each group),the SUVmax of normal breast connective tissues(0.72±0.39 vs 1.81±0.67)and uterus(2.04±0.39 vs 5.11 + 1.06)were significantly different(t values:4.42 and 8.66,both P<0.01).Different levels of radioactive uptake were observed in all 23 breast cancer lesions,with SUVmax of 6.93±3.97,which was significantly higher than the nipple,connective tissue and glandular tissue of normal breasts(t values:6.784-7.559,all P<0.05).According to the characteristics of the radioactivity uptake distribution of the lesion,among the 23 breast cancer lesions,5 were mass type,3 were nodular type,4 were diffuse type,and 11 were multi-focal/multi-center type,and the SUVmax of multi-focal/multi-center type was the highest(F=3.55,P<0.05).The SUVmax of basal-like breast cancer lesions(2.49±1.67)was lower than the other three molecular subtypes.Lesions with high level human epidermal growth factor receptor 2(HER2)positive expression had higher SUVmax.Conclusions 18F-Alfatide II PET/CT imaging shows that normal breasts have a slight radioactive distribution,mainly concentrate in the nipple and connective tissues around the glandular,and the uptake have a positive correlation with the radioactive uptake of the uterus.The degree of radioactive uptake of breast cancer lesions is significantly higher than that of normal breasts.Breast cancer lesions with different moqjhological features all have obvious radioactive uptake,especially the multi-focal/multi-center type.Different molecular subtypes have different radioactive uptake levels.SUVmax is lower in basal-like breast cancer lesions,and higher in HER2 positive expression lesions.