Objective To explore the relationship between endothelial dysfunction and insulin resistance (IR) during reduction of body weight in obese subjects. Methods 260 obese subjects without metabolic disorders, cardiovascular disease and other clinically detectable diseases were enrolled in this study. Among them 157 patients were found to have impaired endothelial function and 103 with normal endothelial function. They were randomly divided into body weight reduction intervention group and nonintervention group. The measures of intervention included food restriction, exercise, and drugs for weight reduction, and they were continued for two years. 87 subjects with normal weight and without endothelial dysfunction served as normal control. IR index (HOMA-IR) and flow-mediated endothelium-dependent dilatation function were measured before and after the study period. Results After two years, it was found that the endothelial function was markedly improved (4.56?4.79 vs 15.17?5.80, P

Objective To evaluate the fallopian tube patency with transvaginal real-time three-dimensional hysterosalpingo-contrast sonography (3D-HyCoSy) in diagnosis of infertility.Methods Taking laparoscopy and dye test as the reference standard,a total of 126 infertile women underwent both transvaginal real-time 3D-HyCoSy with SonoVue and laparoscopy.Bilateral fallopian tubes were dynamic observed.Results Transvaginal real-time 3D-HyCoSy showed that in clinical suspected infertility patients,125 fallopian tubes were patent,81 fallopian tubes were narrow and circuitous,and 37 fallopian tubes were obstructed.Among all the patients,60 cases (115 fallopian tubes) underwent laparoscopy with chromopertubation.The results showed that 10 fallopian tubes were patent,73 fallopian tubes were narrow and circuitous,and 32 fallopian tubes were obstructed.Taking laparoscopy and dye test as the reference standard,107 fallopian tubes of the 60 cases were diagnosed correctly,and the coincidence rate of 3D-HyCoSy and laparoscopy and dye test was 93.0％ (107/115).Taking laparoscopy and dye test as the gold standard,the accuracyof transvaginal real-time 3D-HyCoSy in diagnosis of fallopian tubes patency or obstruction was 93.0％(107/115),the sensitivity was 94.3％ (99/105),the specificity was 80.0％ (8/10).Conclusions Tansvaginalreal-time 3D-HyCoSy can provide dynamic,real-time and three-dimensional display of the fallopian tubes.Itcan get more accurate diagnostic information,so it's an important method.3D-HyCoSy is a safe and non-invasivemethod,so it plays an important clinical role in the screening,diagnosis and treatment of gynecological diseases.

Objective To approach the effect of down regulation of fast glucose damge standard on endothelial funtion. Methods The FBS 、serum lipid、 uric acid of 54101 normal subjects were detected, those subjects were divided by FBG value into four groups: A B C D ,the value of TC、 TG、 uric acid in group B were higher than which in group A, lower than in group C. The value of PBG、FINS、PINS、ET、NO of 655 subjects choiced randomly were detected .At the same time the endodermis dependence angiectasia funtion mediated by bloodstream and the no-endodermis dependence angiectasia funtion mediated by glycerol trinitrate were detected . Results The value of group B was lower than which in group A, having no statistical meanings compared with group C、D;the no-endodermis dependence angiectasia funtion mediated by glycerol trinitrate of group B was higher than that of group C, that of group C was lower than group A, the comparison of other two groups has no statistical meanings. Conclusions Down regulation of fast glucose damge standard can effect on the endothelial funtion.

ObjectiveTo observe the affection of cilostazol combined with valsartan in treating patients with early diabetic nephropathy on serum homocysteine and cystatin C,MethodsNinety-six cases with early diabetic nephropathy were divided into two groups by random digits table method with 48 cases each:observation group was treated with cilostazol and valsartan,control group was treated with valsartan alone.The effect and the levels of 24 h urinary albumin,serum homocysteine and cystatin C before and after treatment in two groups were compared.ResultsThe total effective rate in observation group [85.4％(41/48) ] was significantly higher than that in control group [66.7％(32/48) ](P ＜ 0.05 ).The levels of 24 h urinary albumin,serum homocysteine and cystatin C were significantly decreased after treatment of three weeks in observation group and control group [ (125.48±13.76) mg,(9.25±3.52)p mol/L,(7.82±2.14) mg/L and (168.38±15.43) mg,(13.72±4.23) μ mol/L,(9.57±2.85) mg/L vs.(279.31±21.52) mg,(18.52±6.14) μ mol/L,( 13.25±3.79) mg/L and (275.24±19.31 ) mg,( 18.48±6.12) μ mol/L,( 13.19±3.76)mg/L](P＜ 0.05).And the levels of 24 h urinary albumin,serum homocysteine and cystatin C after treatment of three weeks in observation group were obviously lower than those in control group(P ＜ 0.05).Conclusions Cilostazol combined with valsartan in treating patients with early diabetic nephropathy can improve clinical effect obviously,degrade the level of urinary albumin,homocysteine and cystatin C.Therefore,it deserves to be applied in clinic.

OBJECTIVETo establish the ADAR1 (adenosine deaminase that act on RNA 1) knockout MLL-AF9 acute myeloid leukemia (AML) mouse model, and to preliminarily investigate the effects of ADAR1 deletion on the development of AML.

METHODSThe lineage⁻ (Lin⁻) cells of ER-CreADAR1(lox/lox) mice and their ADAR1(lox/lox) counterparts were enriched by magnetic activated cell sorting (MACS) and then transduced with retrovirus carrying MSCV- MLL/AF9-IRES-GFP fusion gene. The efficiency of transduction was detected by flow cytometry, and equal number of GFP⁺ cells were transplanted into lethally irradiated recipient mice. The recipient mice were treated with tamoxifen at 48 hours after transplantation to induce ADAR1 knockout and divided into following groups: experimental group (ER-Cre;ADAR1(lox/lox)+tamoxifen), control groups ((1)ER-Cre;ADAR1(lox/lox)+vechile, (2)ADAR1(lox/lox)+tamoxifen, (3)ADAR1(lox/lox)+vechile). The percentage of GFP⁺ cells in peripheral blood was examined at 10, 15 and 20 days respectively after transplantation and the survival of the recipient mice was observed. In vitro study, ER-Cre;ADAR1(lox/lox) and ADAR1(lox/lox) AML cells were cultured and the apoptosis rates of these cells 48 hours after 4-hydroxytamoxifen treatment were examined.

RESULTSThe ADAR1 deletion MLL-AF9 AML mouse model was successfully established. Deletion of ADAR1 could decrease the percentage of GFP⁺ cells in the peripheral blood and significantly prolong the survival rate of recipient mice（P<0.05）. In vitro study showed that the cultured total cell number, percentage of GFP⁺ cells decreased and the apoptosis rate of AML cells increased.

CONCLUSIONAblation of ADAR1 could delay the progression of AML in recipient mice. ADAR1 plays a critical role in the development and maintenance of murine MLL-AF9 AML.

Adenosine Deaminase ; Animals ; Apoptosis ; Disease Models, Animal ; Leukemia, Myeloid, Acute ; Mice ; Myeloid-Lymphoid Leukemia Protein ; Tamoxifen ; analogs & derivatives

Coronavirus disease 2019 (COVID-19) is a highly contagious disease and a serious threat to human health. COVID-19 can cause multiple organ dysfunction, such as respiratory and circulatory failure, liver and kidney injury, disseminated intravascular coagulation, and thromboembolism, and even death. The World Health Organization reports that the mortality rate of severe-type COVID-19 is over 50%. Currently, the number of severe cases worldwide has increased rapidly, but the experience in the treatment of infected patients is still limited. Given the lack of specific antiviral drugs, multi-organ function support treatment is important for patients with COVID-19. To improve the cure rate and reduce the mortality of patients with severe- and critical-type COVID-19, this paper summarizes the experience of organ function support in patients with severe- and critical-type COVID-19 in Optical Valley Branch of Tongji Hospital, Wuhan, China. This paper systematically summarizes the procedures of functional support therapies for multiple organs and systems, including respiratory, circulatory, renal, hepatic, and hematological systems, among patients with severe- and critical-type COVID-19. This paper provides a clinical reference and a new strategy for the optimal treatment of COVID-19 worldwide.
Antiviral Agents ; therapeutic use ; Betacoronavirus ; Coronavirus Infections ; drug therapy ; therapy ; Humans ; Oxygen Inhalation Therapy ; Pandemics ; Pneumonia, Viral ; therapy ; Respiration