Objective:To explore the application value of contrast-enhanced ultrasound (CEUS) combined with transvaginal ultrasound features and quantitative parameters in evaluating high-risk endometrial cancer (EC).Methods:Retrospective analysis was made on 69 EC patients who received CEUS examination and were confirmed by surgery and pathology in Beijing Shijitan Hospital, Capital Medical University from December 2017 to September 2022. According to postoperative pathology, the patients were divided into low-risk group ( n=38) and high-risk group ( n=31). The differences in CEUS, transvaginal ultrasound features and quantitative parameters between the two groups were compared, relevant parameters that with predictive value for high-risk EC were screened, and these parameters were scored. Results:①There were differences in lesion size (thick diameter, long diameter), vascular morphology, and color blood flow score between high and low risk ECs (all P<0.05). ②There were differences in CEUS parameters [perfusion mode, enhancement intensity, area under curve(AUC)] between high and low risk EC groups (all P<0.05). ③The areas under the ROC curve for diagnosing high-risk EC were 0.79, 0.69, 0.69, and 0.62, respectively, based on the critical values of lesion thickness diameter ≥1.85 cm, lesion length diameter ≥2.05 cm, ultrasound contrast quantification parameter AUC ≥859 au, and enhancement intensity ≥29.4 dB. ④Using statistically significant parameters for scoring, the sensitivity and specificity for diagnosing high-risk EC with the score ≥5, were 70.97% and 89.47%, respectively. Conclusions:The combination of CEUS and transvaginal ultrasound is a feasible method for predicting high-risk EC. CEUS parameters (enhanced intensity, AUC, and " focal" perfusion mode) are related to high-risk EC. The combination of CEUS and transvaginal ultrasound helps to pre-evaluate the pathological prognostic factors of endometrial malignant lesions before surgery, providing a basis for clinical follow-up treatment.

At present, external treatment of traditional Chinese medicine (TCM) has been widely used in the treatment of intestinal obstruction, which is safe and effective. This study reported a case of recurrent intestinal obstruction after radiotherapy and chemotherapy for rectal cancer. After the implementation of external treatment of TCM on the basis of conventional western medicine treatment, the patient's condition improved significantly, and the patient was discharged smoothly. This case aimed to provide a reference for the diagnosis and treatment of this disease.

Sialidosis is a rare lysosomal storage disease caused by NEU1 gene mutation at 6p21.33. It is characterized by myoclonic, ataxia, epilepsy, and decreased vision. A pair of twins with sialidosis type 1 are reported to enrich clinicians ′ understanding of the disease, so as to improve the diagnosis and treatment. The proband was a 16-year-old male. The main symptom was intermittent limb involuntary trembling for 2 years, with paroxysmal loss of consciousness. Fundus examination showed cherry-red spots. His twin brother had similar symptoms, but the overall performance was mild. Whole exome sequencing results showed that both patients carried compound heterozygous mutations of c.239C>T (p.P80L) and c.803A>G (p.Y268C) in NEU1 gene, which were from their normal phenotype mother and father.

Objective: To explore the association of physical activity and screen time with health-related quality of life among students in China. Methods: A total of 4 388 students (graders 4-12) were randomly selected from primary, junior and senior high schools in Nanjing, China, to take part in this cross-sectional questionnaire survey in 2018. The associations of physical activity and screen time with health-related quality of life were assessed using mixed-effects linear regression models and reported as mean difference (MD) and 95% confidence interval(CI). Results: After adjustment for potential confounders and class-level clustering effects, students with sufficient physical activity reported an increased 0.03 (95%CI=0.01-0.05) unit of the Child Health Utility 9D (CHU9D) scores compared to their counterparts with insufficient physical activity, while participants with short screen time also recorded higher CHU9D scores 0.05(95%CI=0.02-0.08) than those with prolonged screen time. Relative to those with insufficient physical activity and prolonged screen time, students with insufficient physical activity and short screen time 0.05(95%CI=0.02-0.09), or students with sufficient physical activity and prolonged screen time 0.03(95%CI=-0.03-0.10), or students with sufficient physical activity and short screen time 0.08(95%CI=0.05-0.12), respectively, reported increased CHU9D scores. Conclusion Health-related quality of life was positively associated with physical activity, but negatively with screen time. Moreover, these two factors may have a combined effect on health-related quality of life.

Objective To explore the application of "quality control specialized management" model in ultrasound department for medical quality management and effect evaluation.Methods The "quality control specialized management" model was applied for medical quality management in ultrasound department.We explored the changes of clinical and patients' satisfaction before and after the implementation of the model by taking the measures of quality control management by special responsible person,improving patient visit process,strengthening professional training to improve doctors' ability,strengthening humanistic literacy,and improving service attitude.Before and after implementation,clinical satisfaction and patients' satisfaction were evaluated.The comparison of clinical satisfaction before and after the implementation of "quality control specialized management" and the comparison of patient satisfaction was conducted by x2 test.Results After the implementation of "quality control specialized management" model,the clinical satisfaction score was (95.5 ± 0.3) points,which was significantly higher than that before the model was applied [(90.1± 1.5) points;t=7.541,P ＜ 0.01);the patients' satisfaction score was (95.8±0.3) points,which was also significantly higher than that before the model was applied [(92.8±0.7) points;t=5.230,P ＜ 0.01).Conclusion The "quality control specialized management" model can improve clinical and patients' satisfaction effectively,representing an effective way to guarantee and improve the quality of ultrasound medical services.

Objective To explore the value of pulse index continuous cardiac output (PICCO) combined with intracranial pressure monitoring in patients with severe craniocerebral injury.Methods One hundred and thirty-eight patients with severe craniocerebral injury accepted controlling decompression surgical treatment in our hospital from February 2015 to February 2019 were prospectively chosen.According to patients' families will,postoperative application of PICCO combined with intracranial pressure monitoring for fluid management was performed in 72 patients (treatment group) and application of central venous pressure combined with intracranial pressure monitoring for fluid management was performed in 66 patients (control group).All patients were adjusted according to the monitoring results.The intracranial pressure and cerebral perfusion pressure one week after surgery,incidences of new traumatic cerebral infarction,neurogenic pulmonary edema,pulmonary infection,scalp exudation,and intracranial infection,average hospitalization days,total hospitalization costs,intensity of antimicrobial use,and Glasgow coma scale scores two weeks after operation were compared and analyzed between the two groups.Glasgow outcome scale was used to evaluate the prognoses of the patients 6 months after injury.Results There were 7 patients (3 from the control group and 4 from the treatment group) dropped out of the study due to various reasons and 131 patients (63 from the control group and 68 from the treatment group) included in the final statistical analysis;there was no significant difference in drop-out rate of the two groups (P＞0.05).The intracranial pressure in the treatment group ([14.28±2.98] mmHg) was significantly lower than that in the control group ([18.99±2.78] mmHg) and cerebral perfision pressure ([66.72±2.25] mmHg) was significantly higher than that in the control group ([52.96±3.12] mmHg) one week after operation (P＜0.05).During hospitalization,the incidences of new traumatic cerebral infarction,neurogenic pulmonary edema,pulmonary infection,scalp exudation and intracranial infection in the treatment group (8.8％,13.2％,11.8％,7.4％,and 2.9％) were significantly lower than those in the control group (22.2％,27.0％,25.4％,19.0％,and 12.7％,P＜0.05).The average hospitalization days,total hospitalization expenses and intensity of antimicrobial use in the treatment group were significantly shorter/lower than those in the control group (P＜0.05).Glasgow coma scale scores (11.88±1.78) and good recovery rate (76.5％) in the treatment group were significantly higher than those in the control group (8.06±1.12,54.0％) two weeks after operation (P＜0.05).Good recovery rate (76.5％) in the treatment group was significantly higher than that in the control group (54.0％,P＜0.05).The mortality rate (5.9％) was significantly lower than that in the control group (17.5％,P＜0.05).Conclusion PICCO combined with intracranial pressure monitoring can effectively improve intracranial pressure,optimize cerebral perfusion,reduce complications such as traumatic cerebral infarction,neurogenic pulmonary edema,pulmonary infection and intracranial infection in patients with severe craniocerebral injury,thereby improving prognosis and reducing mortality;besides that,it can reduce patients' exposure to anti-brain infection,and the breadth and intensity of bacterial drugs can reduce the length of hospitalization and total cost of hospitalization,thereby reducing the burden of family and society.

Objective: To observe the effect of anti-inflammatory by preventative moxibustion at Tianshu Acupoint (ST25) on UC rats, and to investigate the protective mechanism of preventative moxibustion at Tianshu Acupoint (ST25) onintestinal mucosal barrier in UC rats. Methods: A total of 28 male Sprague-Dawley rats were randomly divided into thenormal group (NC), the ulcerative colitis group (UC), the herb-partitioned moxibustion pretreatment group (HM+P), thewarming moxibustion pretreatment group (WM+P), with 7 in each group. The HM+P and the WM+P were treated withherb-partitioned moxibustion and warming moxibustion for 7 days before the model was established. After pretreatment, the UC, the HM+P and the WM+P were given 4％ dextran sodium sulfate solution for 7 days. Observe the rat pathologicalchanges of colon tissue by HE staining, detect the protein expression in rat colon tissue by immunohistochemistry andwestern blot. Results: compared with the NC group, the pathological scores were increased, the expression of occludin, JAM1, MUC2, ZO-1 were decreased and the expression of NF-κBp65, IL-1βincreased in UC group (P ＜ 0.05);compared with the UC group, the pathological score decreased, the protein expression of occludin, JAM1, MUC2, ZO-1 increased, the protein expression of NF-κBp65, IL-1βdecreased in HM + P group (P ＜ 0.05), the Pathological scoredecreased, the Protein expression of occludin, MUC2, ZO-1 increased, the Protein expression of IL-1β decreased inWM + P group (P ＜ 0.05) . Conclusion: The herb-partitioned moxibustion pretreatment and the warming moxibustionpretreatment could increase the expression of intestinal barrier related proteins in UC rats, it may be one of themechanisms of moxibustion to relieve colonic inflammation of UC.

Vitamin D plays an important role in the progress of aging,especially in controlling and improving the age-related diseases.The mechanism is associated with apoptosis,oxidative stress and telomere loss.This article summarized the related progress in relationship between the deficiency of vitamin D and aging during the recent ten years in order to offer new ideas for anti-aging role of vitamin D.

Objective To evaluate the efficacy and safety of Qingpeng ointment for the treatment of localized eczema in children.Methods A multicenter,randomized,open-labeled,tacrolimus 0.03％ ointment-controlled clinical trial was conducted.A total of 442 children with localized eczema were enrolled into this study,and divided into 2 groups to topically apply Qingpeng ointment (Qingpeng group) and tacrolimus 0.03％ ointment (tacrolimus group) respectively twice a day for 2 weeks.The children were followed up before the treatment and 1,2 weeks after the treatment,and the efficacy and safety were evaluated at the same time.Results Clinical data from 426 children were included in the efficacy analysis.At 1,2 weeks after the treatment,there were no significant differences in the response rate between the Qingpeng group and tacrolimus group (1 week after the treatment:78.92％ vs.81.77％,x2 =0.545,P =0.460;2 weeks after the treatment:98.65％ vs.97.54％,x2 =0.721,P =0.396).However,the pruritus scores at 1,2 weeks after the treatment were both significantly lower in the Qingpeng group than in the tacrolimus group (1 week:F =14.001,P =0.000;2 weeks:F =11.252,P =0.001).At 1 week after the treatment,the incidence rate of adverse reactions was significantly lower in the Qingpeng group than in the tacrolimus group (P ＜ 0.05).Mild itching,burning sensation and other local irritant sensations were the most common adverse reactions.Conclusion Qingpeng ointment is safe and effective for the treatment of localized eczema in children with good tolerability.

Objective To explore the antibacterial effect and mechanisms of platelets (PLT)on Staphylococcus epidermidis (SE).Methods Built infectious model of SE in vitro,whose final concentration was 105 CFU/ml in the reaction.Separately cocultured these models with PLT (the final concentration 400 × 109/L)-plasma (positive control)and BHI medium 12 hours later,and detected the antibacterial effect of PLT by making a liquid thinner and spreading counting method,and draw-ing antibacterial curve.Meanwhile,observed the bacterial structure by transmission electron microscope (TEM),and initially explored the antibacterial mechanism of PLT.Results The study showed the antibacterial effect of PLT on SE was very ob-vious,which appeared later than the plasma (M)group,but enduring.The images of TEM showed an electronlight region appeared in the centre of bacterium,contained condensed DNA molecules and leaded to slower fission.Conclusion PLT can damage the DNA structure of SE,and then affect the fission of SE,finally inhibit the proliferation of SE.