Objective: To study the characteristics of suicides treated in the emergency department of a large general hospital in China, so as to provide relevant data for preventing suicide. Methods:Study the records of 183 suicides in the emergency department of XuanWu hospital during Jan 1st to Dec 31 of 2004. Result:Among all suicide cases, young people (aged 20 to 29 years) were the most (81cases, 44.3%); Females (n=147) outnumbered males (n=36, f:m=4.1:1); 170 (92.8%) cases had ingested poisons, among them, 119 used hypnotics or pesticides. The mortality was 3.3% (6/183), that of males (3/36=8.33%) was much higher than that of females (3/147=2.04%); Most of suicides happened during 18 to 24 o'clock(71cases, 38.8%)(P

Retinoic acid (RA) receptor, is a group of ligand-regulated nuclear transcription factors and widely distributed in various tissue cells. The different subtypes of RA receptor can polymerize into homologous or heterogenous dimmers, and then participate in the physiological and pathological processes of embryonic development, cell proliferation and differentiation, and apoptosis. However, the relationship between the expression of RA receptor and the diseases is different in diverse cells or tissues. Recent researches demonstrated that RA receptor is closely related to the pathogenesis and development of renal diseases. This article aims to review the role of the RA receptor and its signal pathway in the development of renal diseases.

Objective To investigate the effect of all-trans retinoic acid (ATRA) on transforming growth factor β1 (TGF-β1)/Notch signaling pathway in injured podocytes induced by adriamycin (ADR) in vitro.Methods Podocytes cultured in vitro were randomly divided into normal group,model group,ATRA treatment control group,12-hour ATRA intervention group and 24-hour ATRA intervention group.Morphological changes were observed by using light microscope.The expressions of TGF-β1,podocin,Notch 1,Jagged 1 mRNA were evaluated through real-time polymerase chain reaction (RT-PCR) and the corresponding proteins were detected by using Western blot.Results (1) No obvious changes between normal group and ATRA treatment control group were revealed as the plump podocytes and distinct outline were found in light microscope,while podocytes in model group showed disordered arrangement,fuzzy boundary,atrophy,hypertrophy and increased cellular debris.Of note,the podocytes in 12-hour ATRA intervention group and 24-hour ATRA intervention group almost returned to normal.(2) In contrast with those in model group,the amounts of TGF-β1,Notchl,Jaggedl mRNA levels decreased in 12-hour ATRA intervention group (1.34 ±0.43 vs.4.16 ±0.31,1.67 ±0.2 vs.4.21 ±0.92,2.08 ±0.27 vs.5.14 ±0.63,q =23.83,11.45,19.67,all P ＜0.05) and 24-hour ATRA intervention group (1.22 ± 0.16 vs.4.16 ± 0.31,1.73 ± 0.53 vs.4.21 ± 0.92,2.08 ± 0.29 vs.5.14 ± 0.63,q =24.85,11.18,19.67,all P ＜ 0.05),and the differences were significant;similar trend was detected in the protein levels (1.04 ± 0.03 vs.4.31 ± 0.10,1.06 ± 0.04 vs.4.47 ± 0.24,1.07 ± 0.04 vs.4.20 ± 0.16,1.06 ±0.03 vs.4.31 ±0.10,1.07 ±0.03 vs.4.47 ±0.24,1.09 ±0.03 vs.4.20 ±0.16,q =163.50,69.61,90.36,162.50,69.40,89.78,all P ＜ 0.05),and the differences were significant;whereas the level of podocin mRNA (1.13 ±0.05 vs.0.40 ± 0.06,1.16 ± 0.03 vs.0.40 ± 0.06,q =36.50,38.00,all P ＜ 0.05) and protein (1.01 ± 0.01 vs.0.44 ±0.01,1.02 ±0.01 vs.0.44 ±0.01,q =180.25,183.41,all P ＜0.05) increased,and the differences were sig nificant.(3) The expressions of Notch1,Jagged1 mRNA were positively correlated with TGF-β1 mRNA (r =0.84,1.00,all P ＜ 0.05),but negatively correlated with podocin mRNA (r =-0.95,-0.94,all P ＜ 0.05) in model group.Conclusions ATRA might alleviate podocyte injury through cutting the expressions of TGF-β1,Notch1,Jagged1 and raising the expression of podocin in injured podocytes induced by ADR.

Objective To evaluate the curative effect of urokinase combined with low molecular heparin sodium in managing arteriovenous fistula embolism. Methods Toally 48 patients with arteriovenous fistula embolism treated from January 2014 to October 2015 were selected for the study, where 22 were assigned into control group and 26 as trial group according to the registration time. The former group were treated with urokinase and the latter with urokinase combined with low molecular heparin sodium. The rate of recanalization, the rate of thrombosis recurrence, and the adverse reactions were compared between the two groups. Results The recanalization rate in the trial group was higher than that in the control group (P<0.05). The rate of thrombosis recurrence in the trial group was significantly lower than that the control group. There was no statistical difference in adverse reactions between the groups. Conclusion The thrombolytic effect of urokinase combined with low molecular heparin sodium is superior to that of urokinase alone, with a higher rate of recanalization.

Objective To detect and investigate the expression and the effect of Prohibitin (PHB) in rats with renal interstitial fibrosis (RIF) induced by unilateral ureteral obstruction (UUO) .Methods Forty-eight Wistar male rats (6-weeks-old) were randomly assigned into 2 groups,sham-operated and model group.The model group rats were subjected to left ureteral ligation after anesthesia and the sham-operated group rats were subjected to sham operation.Six rats were killed 7,14,21,28 days after operation respectively.The renal tissues were collected.The index of RIF was calculated.The expressions of mRNA and protein of PHB were assayed by real time polymerase chain reaction and immunohistochemistry. Results Compared with sham-operation group,at each time point,the model group had significantly increased index of RIF (P < 0.01) and the obstruction for a longer period showed the higher index; the model group had significantly decreased expression of mRNA and protein of PHB (P < 0.01) and the obstruction for a longer period showed the lower expression; the model group had significantly increased expression of mRNA and protein of TGF-β1 (P < 0.01) and the obstruction for a longer period showed the higher expression.Correlation analysis showed that the index of RIF was negatively correlated with FHB (γ = -0.825) and positively correlated with TGF-β1 (γ = 0.995),while there was a positive correlation between PHB and TGF-β1 (γ = -0.786).Conclusions The lower expression of PHB in renal tissue of UUO rats might suggest that it play an important role in RIF.

OBJECTIVE:To establish a method for simultaneous determination of 6 residual organic solvents in aprepitant raw material as methanol,ethanol,acetone,isopropyl alcohol,methyl tert-butyl ether and tetrahydrofuran.METHODS:Headspace capillary gas chromatography was adopted.The determination was performed on DB-624 capillary column using temperature programming.The temperature of injector port was 180 ℃,and flame ionization detector was used with temperature of 260 ℃.Nitrogen was used as carrier gas with flow rate 3.0 mL/min.The spilt ratio was 5 ∶ 1,and head-space injection volume was 1.0 mL.The head-space equilibrium temperature was set at 80 ℃,and equilibrium time was 40 min.RESULTS:The linear ranges of methanol,ethanol,acetone,isopropyl alcohol,methyl tert-butyl ether,tetrahydrofuran were 6.052-605.232 μ g/mL (r=0.999 9),9.987-998.718 μg/mL(r=0.999 9),9.998-999.768 μg/mL(r=0.999 8),9.986-998.634 μg/mL(r=0.999 9),9.991-999.090 μg/mL (r=0.999 7),1.461-146.133 μg/mL(r=0.999 5),respectively.The limits of quantitation were 1.782 1,2.079 0,0.749 8,1.777 8,0.223 1,0.607 0 μg/mL;the limits of detection were 0.594 0,0.693 0,0.249 9,0.592 6,0.074 4,0.202 3 μg/mL,respectively.RSD of precision test was lower than 2.0％.Only acetone and isopropyl alcohol were detected in stability test and reproducibility tests,RSD＜2.0％.Their recoveries were 99.34-100.75％ (RSD=0.52％,n=9),98.20％-100.24％ (RSD=0.69％,n=9),98.07％-100.07％ (RSD=0.84％,n=9),99.86％-101.32％ (RSD=0.58％,n=9),97.87％-104.02％ (RSD=2.13％,n=9),98.26 ％-100.58 ％ (RSD =0.75 ％,n =9),respectively.CONCLUSIONS:The established method is simple,accurate and reproducible,and can be used for simultaneous determination of 6 residual organic solvents in aprepitant raw material.

Aim To investigate the effects of all-trans retinoic acid and benazepril on the expression of ?-smooth muscle actin in rats with glomerulosclerosis.Methods 80 Wistar male Rats were randomly assigned into the following groups: control group,model group,ATRA treatment group and benazepril treatment group,20 rats in each group.GS rats were uninephrectomized and injected with adriamycin(5mg?kg-1) after one week through the tail vein.All rats were sacrificed at the 12th week,GS was evaluated by glomerulosclerosis index(GSI) system.The expression of ?-SMA was assessed by reverse transcription-polymerase chain reaction(RT-PCR) and immunohistochemistry.Results Comparing with control group,the expression of ?-SMA mRNA and protein were decreased significantly in ATRA treatment group and benazepril treatment group(P0.05).Conclusions The postponed effects of ATRA and benazepril on GS were evident and equivalent.

Objective To understand the development history and current situation of healthcare-associated infection(HAI)management in children’s hospitals in China during the past 30 years.Methods A retrospective survey was conducted in 20 children’s hospitals,the investigated contents included:basic situation of hospitals, HAI management organizations and professionals,the support of hospital leaders for the management of HAI, training on HAI knowledge,monitoring on HAI,and so on.Results Up to 2015,20 hospitals all set up independent HAI management departments and HAI management committees,46.15%(6/13)of hospitals with more than 1 000 beds were understaffed in HAI management.There were a total of 88 professionals in HAI management in 20 children’s hospitals in 2015,53.41% (n=47)of professionals had bachelor degree,34.09% (n=30)were with intermediate professional title,46.59%(n=41)were nursing staff.Up to 2015,incidences and missing report rates of HAI,antimicrobial usage rates,incidences of HAI in neonates all decreased compared with 2006.In 2015,20 (100.00%)hospitals all carried out monitoring on antimicrobial application,multidrug-resistant organisms,disin-fection and sterilization,and provided personnel protective equipment.In 2015,9(45.00%)hospitals used non-tou-ch faucets in all wards,19(95.00%)hospitals supplied hand-drying paper towel and alcohol-based hand rub in all wards.None of professionals in these hospitals participated in national-level training on HAI for ≥3 times in 1996, professionals in 11 hospitals (55.00%)participated in national-level training for ≥3 times in 2015.Conclusion In the past 30 years,the management of HAI in children’s hospitals in China has basically met the requirement,moni-toring on HAI gradually improved,but allocation of HAI professionals and personnel quality ability still need to be strengthened.

The ensemble empirical mode decomposition (EEMD) can be used to overcome the mode mixing problem of empirical mode decomposition (EMD) effectively. The EEMD method and Hilbert-Huang Transform (HHT) can be used to analyze pulse signals of Traditional Chinese Medicine (TCM). The amplitudes of the added white noise were about 0.1 and 0.2 time standard deviation of the investigated signal respectively. The difference of average frequency and average energy of every mode between normal pulse, slippery pulse, wiry pulse and wiry-slippery pulse were demonstrated based on different amplitudes of the added white noise. The results showed that it is more in line with clinical practice when the amplitude of the added white noise is about 0.2 time standard deviation of the investigated signal.
Algorithms ; Artifacts ; Diagnosis, Differential ; Humans ; Medicine, Chinese Traditional ; methods ; Pulse ; Signal Processing, Computer-Assisted

Objective:To identify the transmission relationship between HIV infection cases the non-marital non-commercial heterosexual contact in Zhejiang Province.Methods:When HIV positive was informed during January 2020 to January 2022, the staff conducted an epidemiological investigation to collect cases information on sociodemographic characteristics, mobility information, past HIV testing history, high-risk sexual behaviors, sexual partners, and etcetera. At the same time, 6-8 ml of blood from the new diagnosis of people infected with HIV before antiviral treatment was collected to separate the bleeding plasma. pol gene was amplified by nucleic acid extraction and PCR, sequenced by Sequencer 5.0 software, and Cytoscape 3.6.0 software was used to draw HIV molecular transmission network. Results:From January 2020 to January 2022, 88 HIV infected individuals were found in Pujiang County, of which 74 were transmitted through heterosexual transmission, of which 31 were infected through non-marital non-commercial heterosexual contact. Preliminary case studies have found that three female cases have engaged in unprotected non-marital non-commercial heterosexual contact with one male case. Among the 4 infected individuals, 2 of their spouses tested positive for HIV antibodies. Molecular transmission network monitoring was carried out on 65 newly diagnosed cases of heterosexual transmission with acquired sequences, forming 9 transmission clusters. The largest cluster contained 10 cases. A total of 11 HIV-infected individuals were involved in this HIV cluster epidemic. They were 3 males and 8 females, all over 50 years old and were farmers or rural housewives. They were traced to 7 sexual partners (6 negatives of HIV, 1 undetected). Among the 18 respondents' sexual social network relationships, there were 6 couples, 8 permanent partners, and 3 temporary partners. Among 11 HIV infected individuals, there were 9 cases of non-marital non-commercial heterosexual transmission and 2 cases of intramarital transmission. The epidemiological association between 7 non-married non-commercial heterosexual partners and case 2 (56-year-old male farmer), 3 cases confirmed by epidemiological investigation and molecular transmission cluster results, 3 cases confirmed by molecular transmission cluster and epidemiological investigation results, and 1 case confirmed by epidemiological investigation results.Conclusions:The transmission mode of this cluster epidemic was to spread HIV through heterosexual sex with a male case as the core, then cause the transmission within marriage and between fixed sexual partners. The combination of epidemiological investigation and molecular transmission network traceability survey supports the conclusion of this study.