Objective To study the relationship of three-dimensional power Doppler ultrasonographic parameters and endocrine profile in different symptoms of patients with polycystic ovary syndrome(PCOS).Methods One hundred and forty nine women with PCOS were divided into two groups,which included obese PCOS(OB-PCOS) group and non-obese PCOS (NOB-PCOS) group.The ultrasonic parameters such as follicle number,ovarian average diameter,ovarian volume,stromal volume,follicle volume,vascularization index(Ⅵ),flow index(FI),vascularization flow index(VFI) were measured and compared.Serum levels of luteinizing hormone (LH),follicle stimulating hormone (FSH),progesterone (P),estradiol (E2),testosterone(T),prolactin (PRL),sex hormone binding globulin (SHBG),free androgen index (FAI),fasting plasma glucose (FPG),fasting insulin (FINS),homeostasis model assessment-IR(HOMA-IR) were also measured and compared.The correlation of the ultrasonic parameters and hormonal factors were analyzed.Results The follicle number,ovarian average diameter,ovarian volume,stromal volume,follicle volume,FI and VFI,FINS,HOMA-IR,FAI of OB-PCOS were significantly higher than those of NOB-PCOS (P ＜0.01 or 0.05),the FSH,SHBG were significantly lower than those of NOB-PCOS (P ＜0.05 or 0.01).In OB-PCOS group,the follicle number was significantly associated with FSH(r =0.771,P ＜0.01).The ovarian volume,stromal volume,FI and VFI were significantly associated with HOMA-IR(r =0.412,0.842,0.389,0.415,P ＜0.05 or 0.01),FI was significantly associated with FAI (r =0.812,P ＜0.01).In NOB-PCOS group,the follicle number,ovarian volume were significantly associated with FAI(r =0.472,0.552,P ＜0.05)..Conclusions There are some different characters in ultrasonography and endocrine parameters between obese and non-obese PCOS patients.

Coloring Agents ; Diagnostic Uses of Chemicals ; Esophageal Neoplasms ; diagnosis ; Esophagoscopy ; Esophagus ; pathology ; Humans ; Iodine

Objective:To investigate how medical staff recognize and understand the nursing quality evaluation in robot-assisted arthroplasty so as to provide reference and evidence for construction of a nursing quality evaluation system for robot-assisted arthroplasty.Methods:The descriptive phenomenological research method was used for this qualitative research. From May to October, 2021, 6 doctors and 9 nurses from Operating Room, Laoshan Campus, Hospital Affiliated to Qingdao University were interviewed in a semi-structured way about the nursing quality evaluation for robot-assisted arthroplasty. The data were sorted out by Nvivo12.0 qualitative analysis software, and the interview data were analyzed while the themes and topics refined according to the Colaizzi seven-step analysis of phenomenological data.Results:Three themes were extracted. ① The first theme was related to the quality evaluation of nursing structure, including 2 topics: nursing staff allocation and nursing quality management in operating room. ② The second theme was related to the quality evaluation of nursing process, including 4 topics: environment and facilities, nosocomial infection control, management of patients' operative safety, and specialized operative nursing. ③ The third theme was related to the quality evaluation of nursing outcomes, including 3 topics: satisfaction for operating room nursing, incidence of adverse events and patients' benefits.Conclusion:The themes and topics for nursing quality evaluation in robot-assisted arthroplasty extracted from the perspective of medical staff can provide reference for construction of a reasonable, scientific, efficient and comprehensive nursing quality evaluation index system.

Porcelain tooth technology is widely used in the treatment of oral diseases, but there are few reports on the possible occupational hazard factors in the process of porcelain tooth production. Porcelain teeth production will produced a large amount of silica dust and metal dust during the grinding process. The technical workers who have been engaged in this work for a long time are very prone to pneumoconiosis due to their poor personal protection awareness. This paper analyzed the clinical data of a pneumoconiosis patient engaged in porcelain tooth making, and analyzed the possible occupational hazard factors in the process of porcelain teeth production, so as to improve the understanding of relevant enterprises, technical workers and medical personnel on the disease and reduce the risk of porcelain teeth production workers suffering from pneumoconiosis.

Objective:To synthesize a novel site-specifically labelled probe 68Ga-1, 4, 7, 10-tetraazacyclododecane-1, 4, 7, 10-tetraacetic acid (DOTA)-Cys-Asp-Val (CDV)-Nb109 and explore its potential for detection of the programmed cell death ligand 1 (PD-L1) expression level in different tumors. Methods:Firstly, CDV was inserted into the tail of the sequence of Nb109 by genetic engineering. Then the precursor DOTA-CDV-Nb109 was prepared by mixing the maleimide-DOTA and the single-domain antibody CDV-Nb109 (amount of substance ratio 1∶1) via the maleimide-cysteine site-specific coupling strategy. Subsequently, the DOTA-CDV-Nb109 was labeled with 68Ga and purified by PD-10 column. Human melanoma A375, human PD-L1 transfected melanoma A375-hPD-L1 and human glioma U87 tumor-bearing mice models were established, and the diagnostic value of 68Ga-DOTA-CDV-Nb109 was evaluated by stability assay, cellular uptake, and microPET imaging. One-way analysis of variance and the least significant difference t test were used to analyze the data. Results:The probe 68Ga-DOTA-CDV-Nb109 was obtained with the radiochemical yield of (69.79±4.69)%, radiochemical purity more than 97%, and molar activity of (12.85±1.51) GBq/μmol. 68Ga-DOTA-CDV-Nb109 had strong binding affinity for A375-hPD-L1 with the dissociation constant ( Kd) of (66.43±17.89) nmol/L. The uptake of 68Ga-DOTA-CDV-Nb109 in A375-hPD-L1 and U87 cells were (3.17±0.15) percentage of the added radioactivity dose (%AD) and (2.08±0.03) %AD respectively, which were significantly higher than that in A375 cells ((1.21±0.14) %AD; F=82.87, t values: 15.23, 9.98, P values: <0.001, 0.003). The tumor uptake of the probe in A375-hPD-L1 ((5.21±0.35) percentage of injected dose per ml (%ID/ml)) and U87 tumor-bearing mice ((3.44±0.69) %ID/ml) were significantly higher than that in A375 tumor-bearing mice ((2.17±0.36) %ID/ml; F=249.72, t values: 35.70, 3.43, both P<0.001). Conclusion:The site-specifically labelled probe 68Ga-DOTA-CDV-Nb109, which can non-invasively and dynamically monitor the change of PD-L1 expression level in different tumors and help screen patients who can benefit from PD-L1 immune checkpoint blocking therapy, is successfully synthesized with high radiochemical purity.

Objective To analyze the needs and current situation of home-based exercise rehabilitation for people with disabilities,develop service plans for different types of disabilities,and assess its health benefits for people with severe dis-abilities. Methods Based on the World Health Organization(WHO)Global Action Plan on Physical Activity 2018-2030:More Ac-tive People for a Healthier World and WHO Guidelines on Physical Activity and Sedentary Behavior,functional and individualized home-based exercise rehabilitation plans for people with severe disabilities were developed.Begining from May,2023,a six-month intervention was conducted for 37 people with severe disabilities.They were assessed with International Physical Activity Questionnaire(IPAQ),WHO Disability Assessment Schedule 2.0(WHODAS 2.0),WHO Quality of Life(WHOQOL-BREF)before and after intervention. Results The time of low-intensity leisure physical activity of IPAQ increased after intervention,while the scores of do-mains of cognition,mobility,self-care,getting along,life activities and participation,and total score of WHO-DAS 2.0 decreased,and the scores of physical health,psychological health,independence,and environment di-mensions,and total score of WHOQOL-BREF increased. Conclusion The functioning-oriented and individualized home exercise rehabilitation program can improve the level of physical activity,enhance the level of activity and boost the quality of life for people with severe disabilities.

Porcelain tooth technology is widely used in the treatment of oral diseases, but there are few reports on the possible occupational hazard factors in the process of porcelain tooth production. Porcelain teeth production will produced a large amount of silica dust and metal dust during the grinding process. The technical workers who have been engaged in this work for a long time are very prone to pneumoconiosis due to their poor personal protection awareness. This paper analyzed the clinical data of a pneumoconiosis patient engaged in porcelain tooth making, and analyzed the possible occupational hazard factors in the process of porcelain teeth production, so as to improve the understanding of relevant enterprises, technical workers and medical personnel on the disease and reduce the risk of porcelain teeth production workers suffering from pneumoconiosis.

Programmed cell death protein ligand-1(PD-L1)is an important immune checkpoint molecule that plays an important role in regulating the body's immune response.Several clinical studies have shown that the expression level of PD-L1 in tumors is closely related to the efficacy of immune checkpoint inhibitors.Due to the spatial and temporal heterogeneity of tumors,immunohistochemical methods commonly used in clinical practice cannot accurately and comprehensively reflect the ex-pression level of PD-L1 in patients.Given that nuclear-medicine molecular imaging technology can noninvasively,real-time,dy-namically and visually monitor the expression level of PD-L1 in vivo at the molecular level,this article mainly focuses on the re-search of peptide-based radiolabeled molecular probes targeting PD-L1,with the aim of providing guidance for the search of no-vel peptide molecular probes for immunoimaging as well as for the screening of immunotherapy-suitable patients and evaluation of therapeutic efficacy,and other clinical applications.

To explore the optimal therapy time for the treatment of severe coronavirus disease 2019(COVID-19)by traditional Chinese medicine(TCM)and its influence on the therapeutic effect and prognosis. The clinical data,laboratory findings,and outcomes of 64 patients with severe COVID-19 treated with TCM and western medicine in Chongqing from January 20,2020, to March 11,2020 were retrospectively analyzed.Patients were divided into early intervention group[TCM was initiated within 3 days (including day 3) after the first diagnosis of severe type/critical type COVID-19]and late intervention group[TCM was initiated after 7 days (including day 7) after the first diagnosis of severe type /critical type COVID-19].The changes in clinical parameters during the course of disease were compared between the two groups. On day 14,the oxygenation index was 292.5(252.0,351.0)mmHg in the early intervention group,which was significantly higher than that in the late intervention group [246.0(170.0,292.5)mmHg](=0.005).The length of hospital stay [(18.56±1.11)d (24.87±1.64)d,=0.001],duration of ICU stay [(14.12±0.91)d (20.00±1.53)d,=0.000] and time to negativity [(16.77±1.04)d (22.48±1.66)d,=0.001] in the early intervention group were significantly shorter than those in the late intervention group.The intubation rate(7.3%)in the early intervention group was significantly lower than that in the late intervention group(30.4%)(=0.028). Early TCM therapy within three days after a diagnosis of severe COVID-19 can shorten the length of hospital stay,duration of ICU stay,and time to negativity and decrease intubation rate.
Betacoronavirus ; Coronavirus Infections ; drug therapy ; Humans ; Medicine, Chinese Traditional ; Pandemics ; Pneumonia, Viral ; drug therapy ; Prognosis ; Retrospective Studies