Objective To evaluate the quality of observational studies on pelvic organ prolapse in China.Methods The checklist of strengthening the reporting of observational studies in epidemiology (STROBE) statement was applied to evaluate the observational studies.The articles were searched in the SinoMed database using the terms:prolapse,uterine prolapse,cystocele,rectal prolapse and pelvic floor;limited to Chinese core journals in obstetrics and gynecology from January 1996 to December 2015.With two 10-year groups (1996-2005 and 2006-2015),the x2 test was used to evaluate inter-group differences.Results (1) A total of 386 observational studies were selected,including 15.5％(60/386) of case-control studies,80.6％(311/386) of cohort studies and 3.9％ (15/386) of cross-sectional studies.(2) There were totally 22 items including 34 sub-items in the checklist.There were 17 sub-items (50.0％,17/34) had a reporting ratio less than 50％ in all of aticles,including:1a (study's design) 3.9％ (15/386),6a (participants) 24.6％(95/386),6b (matched studies) 0 (0/386),9 (bias) 8.3％ (32/386),10 (study size) 3.9％,11 (quantitative variables) 41.2％ (159/386),12b-12e (statistical methods in detail) 0-2.6％ (10/386),13a (numbers of individuals at each stage of study) 18.9％ (73/386),13b (reasons for non-participation at each stage) 18.9％,13c (flow diagram) 0,16b and 16c (results of category boundaries and relative risk) 9.6％ (37/386) and 0,19 (limitations) 31.6％ (122/386),22 (funding) 20.5％ (79/386).(3) The quality of articles published in the two decades (1996-2005 and 2006-2015) were compared,and 38.2％ (13/34) of sub-items had been significantly improved in the second 10-year (all P＜0.05).The improved items were as follows:1b (integrity of abstract),2 (background/rationale),6a (participants),7 (variables),8 (data sources/measurement),9 (bias),11 (quantitative variables),12a (statistical methods),17 (other analyses),18 (key results),19 (limitations),21 (generalisability),22 (funding).Conclusions The quality of observational studies on POP in China is suboptimal in half of evaluation items.However,the quality of articles published in the second 10-year have significantly improved.

Objective To study the effect of conditioned media for rat bone marrow mesenchymal stem cells (BMSCs-CM) on palmitic acid (PA)-induced insulin resistance (IR) in HepG2 cells and its underlying molecular mechanisms.Methods HepG2 cells were treated with or without BMSCs-CM and L-DMEM in the presence or absence of PA.Glucose utilization in HepG2 cells were detected with PAS,glucose and glycogen measurements.Western blotting was used to assess the expression of phospho-insulin receptor substrate (p-IRS),phosphatidylinositol 3-kinase (PI3 K) and p-AKT.Results (1) Incubation of HepG2 cells with 0.25 mmol/L PA for 24 hours significantly increased the glucose concentration and decreased the glycogen content (P ＜ 0.05) in the media.(2) Treatment with BMSCs-CM significantly ameliorated the glucose and glycogen alteration in cells pretreated with PA (P ＜ 0.05),however,no obvious effect of BMSCs-CM on the cell glucose and glycogen production.(3) BMSCs-CM treatment also increased protein expression of p-IRS,PI3K and p-AKT in PA incubated HapG2 cells (P＜ 0.05).The effect of BMSCs-CM on PI3K and p-AKT expression could be mimicked upon addition of 740Y-P,a PI3K agonist,but abolished by LY294002,a PI3K specific inhibitor.Conclusions BMSCs-CM could improve the insulin sensitivity in HepG2 cells pretreated with PA through upregulation of insulin signaling component expression.

Objective To compare the clinical efficacy,adverse reactions,and management effect of postoperative intravenous analgesia for patients with postoperative intravenous analgesia with digital information technology and electronic analgesia pump system.Methods Totally 100 patients with postoperative intravenous analgesia (PCIA) were selected from April 2015 to September 2015 with postoperative intravenous analgesia and randomly divided into Wireless analgesic pump system Group (A group) and electronic analgesia pump group (group B),n =50 each group.Pain score (NRS),sedation score (OAA/S),comfort score (BCS),the total number of times and the number of effective press were pressed in patients were observed and compared between two groups after postoperative analgesia 1 hour (T0),4 hour (T1),10 hour (T2),16 hour (T3),and 24 hour (T4).Patients with early adverse reactions,patients and ward medical staff satisfaction,pain pump failure found in the medical staff and effective treatment of adverse events were also observed and compared in two groups.Results There were no significant difference of patients with NRS,OAA/S and BCS in two groups (P ＞ 0.05).Adverse reactions after postoperative analgesia,total number of times and the number of effective press had also no significant difference in two groups (P ＞ 0.05).Two groups of patients with air blockage,incomplete analgesia rate of adverse events was not significantly different (P ＞ 0.05).Medical workers in time [(1.0 ± 0.5) min vs (3.0 ± 2.1) min,P ＜ 0.05],effective processing time [(4.0-± 2.1) min vs (8.0 ± 5.1) min,P ＜ 0.05] in group A was significantly shorter than group B.The patient satisfaction in group A was significantly higher than group B(12.0 ± 4.2 vs 9.0 ± 3.1,P ＜ 0.05).The satisfaction degree of medical staff in group A was also significantly higher than group B(13.0 ±3.1 vs 10.0 ±2.1,P ＜0.05).Conclusions The digital information technology of wireless analgesic pump is applied to postoperative analgesia for medical workers to standardize management,improve the work efficiency,and increase the satisfaction of patients and medical staffs.

Patients with skeletal ClassⅡ often show symptoms such as protrusion of maxillary anterior teeth,mandibular retraction,open lips and teeth,deep overbite,and deep overjet,which seriously affect the facial appearance.This article reports a case of an ado-lescent male patient with skeletal Class Ⅱ combined with impacted teeth treated by one-stage early correction and two-stage fixation.After treatment,the patient's skeletal Class Ⅱ symptoms improved significantly,including the improvement of mandibular retraction.The problem of open lips and teeth was solved;the facial appearance tended to be straight,and there was no obvious abnormality of the temporomandibular joint.This case shows that early correction can achieve good therapeutic effects on this kind of patients and can avoid or reduce the possibility of orthognathic surgery for these patients in adulthood.

Objective:To explore the accuracy of a multi-task model based on vision Transformer for analyzing the three-dimensional (3D) upper airway and its subregions, and to evaluate its clinical applicability.Methods:According to the inclusion and exclusion criteria, cone-beam CT (CBCT) data of 10 patients [4 males and 6 females, (20.8±2.7) years] who had their first visit to the Department of Orthodontics in the Hospital of Stomatology, Wuhan University from January 2012 to January 2020 were retrospectively selected. The 3D slicer software was used to segment the upper airway and pharyngeal airway and measure their volumes as the gold standard. The Dolphin 3D software was used to segment the pharyngeal airway and its subregions and measure their volumes as the gold standard. A multi-task model based on vision Transformer developed by the research team for automatic segmentation and volume measurement of the upper airway and its subregions. All the measurements were conducted by the same attending physician. The Bland-Altman analysis and intraclass correlation coefficient ( ICC) were used to evaluate the consistency between the multi-task network and the gold standard in the upper airway segmentation and volume measurements, and the paired t test was used to compare the differences between the multi-tasking model and the gold standard. Results:The mean volume deviation of the upper airway segmented by multi-task model and 3D Slicer was -979.6 mm 3, and the ICC was 0.97. The mean volume deviation of the pharyngeal airway, nasopharynx, velopharynx, glossopharynx and hypopharynx segmented by multi-task network and Dolphin 3D were 2 069.5, -950.1, -823.6, -813.9 and 4 003.4 mm 3, respectively. In addition, ICC in pharyngeal airway, nasopharynx, velopharynx, glossopharynx and hypopharynx were 0.97, 0.94, 0.96, 0.96 and 0.69, respectively. Conclusions:The multi-task model based on vision Transformer produced different errors in the segmentation of 3D upper airway and its subregions. The segmentation of the nasopharynx, velopharynx and glossopharynx was in good agreement with the gold standard, while the segmentation of hypopharynx was poor, suggesting that the robustness and generalization of this model should be further enhanced.

Objective To construct a mouse model of psoriasis with spleen deficiency and dampness obstruction pattern and evaluate the model from multiple dimensions and directions,expects to provide research support for the study of traditional Chinese medicine (TCM) treatment of psoriasis with spleen deficiency and dampness obstruction pattern. Methods A mouse model of spleen deficiency and dampness obstruction pattern was established by feeding a high-fat diet,a mouse model of psoriasis vulgaris was established by externally applying imiquimod ointment,and a mouse model of psoriasis with spleen deficiency and dampness obstruction pattern was constructed by combining the above two models. Indications of spleen deficiency and dampness obstruction pattern were evaluated by comparing the body mass,food intake and water intake of mice in each group. The severity of psoriasis in mice was evaluated by comparing the area of skin lesions,PASI score,the value of transdermal water loss (TEWL),and histopathological morphological changes of skin under HE staining in each group. Flow cytometry was used to detect the expression in various cell types to evaluate the degree of inflammatory response of psoriasis in mice. Observation of adiposity index,changes in the histopathological morphology of liver tissue under HE staining,changes in the mRNA expression levels of related factors in liver tissue and adipose tissue of epididymis of mice detected by RT-qPCR,and changes of ABCA1 protein expression level of skin detected by Western Blot were used to evaluate the lipid metabolism disorders in mice. Results Compared with the mice in the psoriasis vulgaris model group,the mice in the model of psoriasis with pattern of spleen deficiency and dampness obstruction had significantly higher body mass (P<0.001),significantly lower food intake (P<0.005),and the symptoms of pattern of spleen deficiency and dampness obstruction such as greasy fur,mental fatigue,etc. appeared. The TWEL were significantly increased(P<0.001),and the PASI scores also significantly increased(P<0.001). HE results were found psoriasis-like manifestations including hypertrophy of the spinous layer and clubbed hyperplasia. The expression of CD11bhighLy6G+neutrophil subpopulation,CD11binLy6Chigh monocyte subpopulation,CD11binCD11chigh classical dendritic cell subpopulation,F4/80-CD11c+dendritic cell subpopulation was significantly increased (P<0.001). HE staining suggested that the cellular morphology of liver showed obvious vacuolated degeneration,and the index of subcutaneous white adiposity and epididymal adiposity index were both significantly increased (P<0.005). The mRNA levels of FABP4 and CD36 in liver tissue were significantly elevated(P<0.005,P<0.001),while the mRNA expression levels of ABCA1 and PPARγ in epididymal fat tissue were decreased (P<0.05,P<0.01). ABCA1 protein level in skin increased(P>0.05). Conclusion The mouse model of psoriasis with spleen deficiency and dampness obstruction pattern can be used as a reliable animal model for combining disease and pattern,which can provide a reference for further exploration of TCM in the treatment of psoriasis with spleen deficiency and dampness obstruction pattern.

ObjectiveTo construct a rat model of psoriasis with spleen deficiency and dampness obstruction syndrome （external dampness type）， and evaluate the macroscopic manifestations and microscopic indicators of the model. MethodsTwenty-two SD rats were divided into normal group （n=3）， common psoriasis group （n=5）， spleen deficiency and dampness obstruction syndrome （external dampness type） group （n=7）， and psoriasis with spleen deficiency and dampness obstruction syndrome （external dampness type） group （n=7）. The spleen deficiency and dampness obstruction syndrome （external dampness type） rat model was established through 32-week exposure to an artificially simulated high-humidity environment， while the common psoriasis model was developed via 7-day topical application of imiquimod cream， and these two approaches were combined to construct a composite model of psoriasis with spleen deficiency and dampness obstruction syndrome （external dampness type）. Rats in the normal group were housed under normal humidity conditions. The general state， tongue manifestation of rats were observed to evaluate the macroscopic syndrome manifestations； the microscopic syndrome manifestations of rats were evaluated through adipose tissue and liver tissue changes； the severity of psoriasis in rats was evaluated through skin pathological changes， psoriasis area and severity index （PASI）， proliferating cell nuclear antigen （PCNA） expression and spleen tissue changes； changes in rat CD4⁺ interferon-γ⁺ cells （CD4⁺IFN-γ⁺ cells）， CD4⁺ tumour necrosis factor-α+ cells （CD4⁺ TNF-α⁺ cells）， and forkhead framing protein P3⁺ regulatory T cells （CD3⁺CD4⁺FoxP3⁺ Treg cells） were detected by flow cytometry. ResultsMacroscopically， both the spleen deficiency and dampness obstruction syndrome （external dampness type） group and psoriasis with spleen deficiency and dampness obstruction syndrome （external dampness type） group exhibited manifestations of spleen deficiency and dampness obstruction， including lethargy， huddling behavior， dull and disheveled fur， as well as soft or loose stools and perianal soiling in some individuals； both these two groups displayed enlarged tongue， swollen， and moist tongue texture， accompanied by slippery tongue surface. Microscopically， compared to the common psoriasis group， the psoriasis with spleen deficiency and dampness obstruction syndrome （external dampness type） group showed increased epididymal fat index （P＜0.05）； compared to the normal group and spleen deficiency and dampness obstruction syndrome （external dampness type） group， the psoriasis with spleen deficiency and dampness obstruction syndrome （external dampness type） group demonstrated significantly elevated spleen mass （P＜0.05）， while hepatic gross morphology and HE staining revealed no significant histopathological changes across all groups. Dorsal skin lesions were markedly exacerbated in the psoriasis with spleen deficiency and dampness obstruction syndrome （external dampness type） group when compared to those in common psoriasis group. Both the common psoriasis group and psoriasis with spleen deficiency and dampness obstruction syndrome （external dampness type） group exhibited significantly higher erythema scores， scaling scores， infiltration scores， PASI total scores， and proportions of CD3⁺CD4⁺FoxP3⁺Treg cells compared to the normal group and spleen deficiency and dampness obstruction syndrome （external dampness type） group （P＜0.05）， with pronounced PCNA-positive expression observed in the epidermal basal layer and dermis； the psoriasis with spleen deficiency and dampness obstruction syndrome （external dampness type） group displayed significantly increased proportions of CD4⁺TNF-α⁺cells compared to the spleen deficiency and dampness obstruction syndrome （external dampness type） group （P＜0.05）； whereas no significant differences were detected in CD4⁺IFN-γ⁺cell proportions among groups （P＞0.05）. ConclusionThe rat model of psoriasis with spleen deficiency and dampness obstruction syndrome （external dampness type） can be successfully constructed by artificially simulating a high-humidity environment combined with imiquimod induction.