Endometrial injury disease is a kind of uterine disease of thin endometrium and intrauterine adhesion caused by endometrial basal layer damage.The current clinical use of drug therapy and hysteroscopy surgery can not have good curative effects.Mesenchymal stem cells(MSCs)and platelet-rich plasma(PRP)can secrete a variety of active factors to regulate the inflammatory response and immune response of endometrial,promote endometrial proliferation and repair,and there is a mutual promoting effect between the two.Combined use can provide a new idea for the clinical treatment of endometrial injury diseases.

Objective:To investigate the diagnostic accuracy of serological indicators and evaluate the diagnostic value of a new established combined serological model on identifying the minimal hepatic encephalopathy (MHE) in patients with compensated cirrhosis.Methods:This prospective multicenter study enrolled 263 compensated cirrhotic patients from 23 hospitals in 15 provinces, autonomous regions and municipalities of China between October 2021 and August 2022. Clinical data and laboratory test results were collected, and the model for end-stage liver disease (MELD) score was calculated. Ammonia level was corrected to the upper limit of normal (AMM-ULN) by the baseline blood ammonia measurements/upper limit of the normal reference value. MHE was diagnosed by combined abnormal number connection test-A and abnormal digit symbol test as suggested by Guidelines on the management of hepatic encephalopathy in cirrhosis. The patients were randomly divided (7∶3) into training set ( n=185) and validation set ( n=78) based on caret package of R language. Logistic regression was used to establish a combined model of MHE diagnosis. The diagnostic performance was evaluated by the area under the curve (AUC) of receiver operating characteristic curve, Hosmer-Lemeshow test and calibration curve. The internal verification was carried out by the Bootstrap method ( n=200). AUC comparisons were achieved using the Delong test. Results:In the training set, prevalence of MHE was 37.8% (70/185). There were statistically significant differences in AMM-ULN, albumin, platelet, alkaline phosphatase, international normalized ratio, MELD score and education between non-MHE group and MHE group (all P<0.05). Multivariate Logistic regression analysis showed that AMM-ULN [odds ratio ( OR)=1.78, 95% confidence interval ( CI) 1.05-3.14, P=0.038] and MELD score ( OR=1.11, 95% CI 1.04-1.20, P=0.002) were independent risk factors for MHE, and the AUC for predicting MHE were 0.663, 0.625, respectively. Compared with the use of blood AMM-ULN and MELD score alone, the AUC of the combined model of AMM-ULN, MELD score and education exhibited better predictive performance in determining the presence of MHE was 0.755, the specificity and sensitivity was 85.2% and 55.7%, respectively. Hosmer-Lemeshow test and calibration curve showed that the model had good calibration ( P=0.733). The AUC for internal validation of the combined model for diagnosing MHE was 0.752. In the validation set, the AUC of the combined model for diagnosing MHE was 0.794, and Hosmer-Lemeshow test showed good calibration ( P=0.841). Conclusion:Use of the combined model including AMM-ULN, MELD score and education could improve the predictive efficiency of MHE among patients with compensated cirrhosis.

Aim To evaluate the pharmacokinetics and bioequivalence of two osmotic pump tablets of hydrochloride venlafaxine in Chinese healthy volunteers.Methods The fed test each enrolled twenty-six Chinese healthy volunteers in a randomized-sequence, open-label, two-period crossover single-dose oral test and reference preparations of hydrochloride venlafaxine extended-release tablets.The plasma concentrations of venlafaxine and its active metabolites O-desmethylvenlafaxine were determined by a validated liquid chromatography-tandem mass spectrometry(LC-MS/MS)method, and the pharmacokinetic parameters and bioequivalence of the two tablets were analyzed using PhoenixTM WinNonlin 6.4 software.Results The pharmacokinetic parameters of venlafaxine after single dose for the test and reference tablets were as follows: Cmax(58.50±19.47)vs(60.14±22.18)μg•L-1, AUC0-t(1 074.1±526.7)vs(1 057.9±539.7)μg•h•L-1, AUC0-∞(1 084.7±536.8)vs(1 067.8±554.0)μ g•h•L-1.The pharmacokinetic parameters of O-desmethylvenlafaxine were as follows: Cmax(101.63±29.64)vs(101.45±31.62)μg•L-1, AUC0-t(2 694.0±834.5)vs(2 702.9±946.4)μg• h•L-1, AUC0-∞(2 753.9±885.5)vs(2 753.2±988.4)μg•h•L-1.The 90% confidence intervals of the geometric mean ratios of Cmax, AUC0-t, AUC0-∞ for the test preparation and the reference preparationwere all within the equivalent interval of 80.00%-125.00%.Conclusion The test and reference preparations of hydrochloride venlafaxine extended-release tablets are bioequivalent in Chinese healthy volunteers under fed conditions.

Objective:To explore the strategies of reducing relapse after allogeneic hematopoietic stem cell transplantation (allo-HSCT) in patients with high-risk myelodysplastic syndrome (MDS) from the perspectives of optimizing the conditioning regimen and pre-transplant cytoreductive therapy.Methods:A total of 84 patients with high-risk MDS undergoing allo-HSCT between January 2013 and September 2019 were retrospectively analyzed. Based upon preparative regimens, they were divided into two groups of decitabine intensified BUCY2 ( n=49) and BUCY2 regimen ( n=35), based upon whether or not pre-treatment prior to allo-HSCT: cytoredutive treatment ( n=34) and none ( n=50). Two groups were compared with regards to hematopoietic reconstitution, graft-versus-host disease (GVHD), relapse rate, transplant-related mortality (TRM) and survival. Results:No significant inter-group differences existed in hematopoietic reconstitution or acute/chronic GVHD. The relapse rate was significantly lower in decitabine intensified group than that in BUCY2 group (18.7% vs 40.0%, P=0.025). Survival was significantly better in decitabine intensified group than that in BUCY2 group (3-year OS: 71.3% vs 51.2%, P=0.038; 3-year DFS: 65.3% vs 45.2%, P=0.033). Moreover, the incidence of recurrence was markedly lower in pre-transplant treatment group than that in non-treatment group (20.7% vs 38.9%, P=0.035). The inter-group incidence of TRM was not different. Three-year OS/DFS of treatment group were remarkably superior to those of non-treatment group (71.2% vs 50.8%, P=0.024; 64.7% vs 45.9%, P=0.044). Conclusions:As an optimal conditioning regimen for high-risk MDS, decitabine intensified BUCY2 regimen could better eliminate tumor burden, remarkably lower relapse rate and improve OS after allo-HSCT. In addition, pre-transplant treatment significantly reduces relapse and offers benefit for OS after allo-HSCT. Therefore intensified conditioning regimen and pre-transplant treatment may be promising strategies of reducing relapse and improving survival for high-risk MDS. However, it still needs further confirmation from prospective randomized controlled trials.

Objective:To explore the association between sleep duration, sleep quality and the prevalence of hypertension in the elderly aged 65 years and above.Methods:This study was conducted among the elderly in communities in Yiwu, China from April to July, 2019, and participants were recruited through physical examination in the hospital. Face-to-face interview was performed to obtain basic information. Sleep duration and sleep quality were evaluated by Pittsburgh Sleep Quality Index (PSQI). Associations between sleep duration, sleep quality and hypertension were evaluated by multivariate logistic regression analysis.Results:A total of 3 169 elderly persons, aged ≥65 years old, were included in the study. The overall prevalence of hypertension was 50.8%. The elderly with very poor sleep quality and short sleep duration accounted for 22.4% and 28.5%, respectively. After adjusting for demographic characteristics, socioeconomic status, lifestyle and health status, the OR of hypertension for the elderly with very poor sleep quality was 1.42 (95% CI: 1.12-1.80) compared with those with very good sleep quality. Compared with the elderly with sleep duration of 6-7 h a night, the OR of hypertension for those with sleep duration <6 h was 1.37 (95% CI: 1.15-1.65). As the sleep quality decreased, the risk for hypertension increased. An U-shaped association was found between sleep duration and risk of hypertension. Subgroup analyses showed that this association existed in both men and women, but only significant in the elderly aged <75 years. Conclusion:Poor sleep quality and short sleep duration were associated with risk for hypertension in the elderly.

Objective:To observe the effect of Taohong Siwu granule on dysmenorrhea rats. Method:Forty-eight healthy SD female rats were randomly divided into six groups: control group, model group, Taohong Siwu granule groups (18, 9, 4.5 g·kg^-1) and Fuke Qianjin tablet group (0.08 g·kg^-1). The rats were given Bugaorer (0.35 mg·kg^-1) every day and ice-water bath for 8 minutes for 10 consecutive days. Oxytocin was injected intraperitoneally on the 11^th day. The writhing reaction of rats was observed, and the effect of Taohong Siwu granules on hemorheology was measured. The levels of 6-ketoprostacyclin F_1α(6-keto-PGF_1α), thromboxane B₂(TXB₂), prostaglandinF_2α（PGF_2α）, PGE₂ of rats were detected by enzyme-linked immunosorbent assay (ELISA). Ca²⁺ in uterine tissues was scanned by laser confocal microscopy. Result:Each dose of Taohong Siwu granule group reduced the number of writhing, the time of writhing and the incidence of writhing in dysmenorrhea rats, which were significantly lower than those in model group (P<0.05，P<0.01). Compared with the model group, high, medium and low-dose Taohong Siwu granules groups could reduce blood viscosity and plasma viscosity, and Taohong Siwu granules can significantly reduce the content of TXB₂, Ca²⁺，PGF_2α, and significantly increase the content of 6-keto-PGF_1α，PGE₂ (P<0.05，P<0.01). Conclusion:Taohong Siwu granule can significantly alleviate dysmenorrhea symptoms in rats. The mechanism may be correlated with the contents of 6-keto-PGF_1α, TXB₂ and PGF_2α, PGE₂ and Ca²⁺.