Objective To study the relationship between IP 3 and detrusor cell contraction mediated by M 3R. Methods [3H]-IP contents of human cultured detrusor cells were detected after stimulated by carbachol,atropine,methoctramine and 4-DAMP respectively. Results [3H]-IP contents increased with carbachol concentration.On the different concentrations (10 -9、10 -8、10 -7、10 -6、10 -5、10 -4 mmol/L )of 4-DAMP,[3H]-IP contents were 3 926.57?273.29、2 780.52?211.09、2436.84?153.62、1 973.22?164.71、1 372.38?141.35 and 1 107.98?920.45 cpm respectively.On the some concertrations of Atropine,[3H]-IP contents were 3 602.69?280.17,2 891.31?207.45,1 983.97?145.74,1 269.57? 105.31,1 106.37?75.23,927.50?77.36/min,respectively.On the same concentrations of methoctramine, the [3H]-IP contents was 4 462.74?360.69、3 938.61?327.13、3 315.45?270.36、3 063.19? 246.79、2927.37?226.45 and 2 836.55?241.63 cpm.This donoted that 4-DAMP and atropine signficantly inhibited the effect of carbachol on PI decomposition(P0.05). Conclusions M 3R is much related to IP 3.

To study the relationship between the density of muscarinic receptor (MR) subtype and the occurrence of bladder instability. The rat model of unstable bladder was established, and the density of MR subtype was determined in normal and unstable bladders. The results showed that there were only m 2 RNA and m 3 RNA present in the detrusor of normal and unstable bladders, and m 1, m 2 or m 3 mRNA subtypes were not detected. In the normal bladder, the amount of m 2 RNA (1 67?0 42) was obviously greater than m 3 RNA (0 64?0 19), and the ratio of them was 2 59∶1. In the unstable bladder, the density of both m 2 and m 3 increased to (2 03?0 65) and (1 53?0 46) respectively, and the increase of m 3 was more significant ( P

Objectives To observe the changes of the detrusor excitability and contractility and to study the mechanism of the unstable bladder. Methods Detrusor strips were obtained from prostectomy patients with benign prostatic hyperplasia. According to the results of urodynamic examination, patients were divided into detrusor instability (DI) and detrusor stability group(DS). Test of mechanical tension and stimulations with electricity and carbachol were performed on the excitability and contractility of the detrusor strips from 8 patients selected from each of the groups in vitro . Results The minimum tension of the detrusor strips when contraction occurred in DI and DS was (0 324?0 132)g and (0 822?0 216)g, respectively. There was significant difference between DI and DS ( P

Objective To evaluate the performance of Sysmex XN‐9000 automated hematology analyzer .Methods According to international and domestic standards ,performance of analyzer was evaluated .Results The within‐batch and between‐batch preci‐sion ,carryover pollution rate ,linearity range and the accuracy of Sysmex XN‐9000 analyzer were all conform to related require‐ments .Leukocyte classification results compared with manual classification ,the correlation of neutrophil ,lymphocyte ,monocyte and eosinophil were fine ,but correlation of basophil was not very ideal .Conclusion The performance of Sysmex XN‐9000 analyzer could be satisfying ,could meet the needs of clinical inspection and diagnosis and treatment .

Objective To study the relationship between muscarinic receptor(MR) subtype density changes and the producing of unstable bladder Methods The rat model of unstable bladder was established and the MR subtype density of control and unstable bladders were defermined by RT-PCR Results There were only m 2RNA and m 3RNA in the detrusor of control and unstable bladders, but no m 1, m 2 and m 3 mRNA, the amount of m 2RNA(1 67?0 42)was larger obviously than m 3RNA(0 64?0 19),the ratio was 2 59∶1 in control group, and the density of both m 2 and m 3 in unstable bladder increased to (2 03?0 65) and(1 53?0 46)respectively, and the increase of m 3 was more significant ( P

Objective To identify the imbalance of T cell-specific transcription factors T-bet/GATA-3,and to explore the modulation with dexamethasone and imiquimod in CD4+T cells from ovalbumin (OVA)sensitized mice.Methods CD4+T cells were obtained fromsingled-cell suspension of spleen(after lysis of RBC).ELISA assay was used to detect the concentrations of IL-4,IL-5 and IFN-γin superna tants and cell pellets,and the expression of T-bet and GATA-3 was detected by Western blot.Resuits In the control group,tIle low levels of IFN-γ were detected in the supernatants during 24 h.In OVA treatment group,the concentrations of IL-4,IL-5 were increased significantly,and the concentrations of IFN-γ were always low in the supernatants.In the dexamethasone treatment group,the concentrations of IFN-γ,IL-4 and IL-5 were all low in the supernatants during 24 h.In the imiquimod treatment group,the concentrations of IFN-γ were increased significantly,and the concentrations of IL-4 and IL-5 were decreased in the super natants.It worked at 6 h,and achieved the peak at 12 h,lasted over 24 h.In the control group,the expres sions of T-bet and GATA-3 were detected in CD4+T cells during 24 h.In OVA treatment group,the expressions of T-bet were decreased,and that of GATA-3 were increased rapidly in CD4+T cells.In dexam ethasone treatment group,the expressions of T-bet were always low in CD4+T cells,and that ofGATA-3 were no change during 24 h.In imiquimod treatment group,the expressions of T-bet were increased,andthat of GATA-3 were decreased in CD4+T cells.The protein expressions worked at 6 h.and achieved the peak at 12 h,lasted over 24 h.Conclusion The imbalance T cell-specific transcription factors T-bet/GA-TA-3 contributes to both high expression of GATA-3 and low expression of T-bet in CD4+T cells from OVA sensitized mice.Dexamethasone treatment inhibits the expression of T-bet in CD4+T cells and has no func tion in GATA-3.Imiquimod treatment modulates key master switches GATA-3 and T-bet that results in com mitting T helper cell to a TH 1 phenotype and imiquimod may play a key role in the regulation of TH2 cytokine responses in asthma.

Abstract: Objective　To analyze the clinical features of hemophagocytic syndrome (HPS) associated with Orientia tsutsugamushi disease in children. Methods　The case data of patients with scrub typhus in Kunming Children's Hospital from January 1st 2019 to December 31st 2021 was retrospectively analyzed. The patients were divided into the HPS group and the non-HPS group according to whether associated with HPS. The clinical data of the two groups were analyzed using SPSS 25.0. Results　Eighty-five cases of scrub typhus in children were collected, 15 cases (17.6%) had HPS. The mean age of patients with HPS was (5.10±3.82) years, included 9 males and 6 female, there was no significant difference in gender and age between the HPS and the non-HPS group (P>0.05). Comparison of the two groups indicted that the incidence of cough, lung rales, edema, and hepatomegaly were significantly increased in the HPS group (P<0.05). The data showed that compared to the non-HPS group, the HPS group showed significant decreases in the levels of hemoglobin (HGB), platelet (PLT), albumin (ALB), fibrinogen (Fib) (P<0.05), and significant decreases in the levels of C-reactive protein (CRP), lactic dehydrogenase (LDH), triglyceride (TG), serum ferritin (SF) (P<0.05). The proportion of CD4+ T lymphocytes, CD4+/CD8+ were significantly decreased (P<0.05); the proportion of CD3+, CD8+ T lymphocytes were significantly increased (P<0.05). The proportion of pulmonary exudation or consolidation in the HPS group was higher than the non-HPS group, which was statistically significant (P<0.05). All the patients with scrub typhus associated with HPS were treated with oral doxycycline, and intravenous immunoglobulin was given in 13 cases (86.7%). There was one case of death and 14 cases discharged from hospital after treatment in HPS group. Conclusion　HPS in scrub typhus infected children is a nonnegligible complication. Prolonged fever, lung rales, hepatomegaly，HGB decreased, thrombocytopenia, hyperferritinemia, and abnormal lymphocyte subsets may associate with HPS. It should be alerted to scrub typhus when presenting with HPS in endemic areas. The scrub typhus associated with HPS can be successfully treated with appropriate antibiotic and immunomodulator treatment.

The genetic diversity of three Tibetan herbs, i. e., Sang-Di, E-Dewa and Ye-Xingba (Tibetan names), was studied based on the field collection, specimen identification and DNA sequence analysis. Swertia hispidicalyx, Gentiana lhassica and Scrophularia dentata, as the original plants of the three Tibetan herbs, were collected and identified. The regions of ITS, matK, rbcL, rpoC1, trnL(UAA), psbA-trnH, atpB-rbcL, trnS (GCU)-trnG(UCC), rpl20-rps12, trnL(UAA)-trnF(GAA) and nadl 2nd intron were amplified and sequenced. The ITS regions of S. hispidicalyx and S. dentata were cloned and sequenced, and the sequences were classified into different genotypes. All the sequences were analyzed and compared with those of closely related species. Our studies may provide reference for the genetic diversity analysis and molecular identification of the three Tibetan herbs.
Genetic Variation ; Gentiana ; classification ; genetics ; Phylogeny ; Plant Proteins ; genetics ; Plants, Medicinal ; classification ; genetics ; Scrophularia ; classification ; genetics ; Swertia ; classification ; genetics ; Tibet

Adolescent ; Child ; Child, Preschool ; China ; epidemiology ; Female ; Humans ; Infant ; Infant, Newborn ; Intensive Care Units, Pediatric ; statistics & numerical data ; Lung Diseases ; epidemiology ; mortality ; physiopathology ; Male ; Prognosis ; Prospective Studies ; Respiratory Function Tests ; Survival Rate

A novel series of benzyl urea analogues based on the structural modification of sorafenib were synthesized. Their in vitro antitumor activities against MX-1, HepG2, Ketr3 and HT-29 were evaluated using the standard MTT assay. While several target compounds showed inhibitory activity against multiple cancer cell lines, compound 9 was of particular interest, demonstrating IC50 values (5.69-13.6 micromol x L(-1)) comparable to those of sorafenib. Furthermore, compounds 20 and 23 showed more potent inhibitory activity against HT-29 and MX-1 when compared to sorafenib. In particular, compound 20 bearing the N-3-pyridyl moiety not only exhibited greater inhibitory activity against HT-29 cell line (IC50 3.82 micromol x L(-1)), but also had improved solubility at pH 7.2, is worthy of further investigation as a lead to identify novel antitumor agents.