Protective effect of recombinant Schistosoma japonicum cystatin against acute kidney injury associated with acute liver failure in mice / 中国血吸虫病防治杂志

Objective To evaluate the protective effect of recombinant Schistosoma japonicum cystatin (rSj-Cys) against acute kidney injury induced by acute liver failure and unravel the underlying mechanism, so as to provide insights into the clinical therapy of acute kidney injury. Methods Twenty-four male C57BL/6J mice at ages of 6 to 8 weeks were randomly divided into the normal control group, rSj-Cys control group, lipopolysaccharide (LPS)/D-galactosamine (D-GaIN) model group and LPS/D-GaIN + rSj-Cys treatment group, of 6 mice each group. Mice in the LPS/D-GaIN group and LPS/D-GaIN + rSj-Cys group were intraperitoneally injected with LPS (10 μg/kg) and D-GaIN (700 mg/kg), and mice in the LPS/D-GaIN + rSj-Cys group were additionally administered with rSj-Cys (1.25 mg/kg) by intraperitoneal injection 30 min post-modeling, while mice in the rSj-Cys group were intraperitoneally injected with rSj-Cys (1.25 mg/kg), and mice in the normal control group were injected with the normal volume of PBS. All mice were sacrificed 6 h post-modeling, and mouse serum and kidney samples were collected. Serum creatinine (Cr) and urea nitrogen (BUN) levels were measured, and the pathological changes of mouse kidney specimens were examined using hematoxylin-eosin (HE) staining. Serum tumor necrosis factor (TNF)-α and interleukin (IL)-6 levels were detected using enzyme-linked immunosorbent assay (ELISA), and the expression of inflammatory factors and pyroptosis-related proteins was quantified in mouse kidney specimens using immunohistochemistry. In addition, the expression of pyroptosis-related proteins and nuclear factor-kappa B (NF-κB) signaling pathway-associated proteins was determined in mouse kidney specimens using Western blotting assay. Results HE staining showed no remarkable abnormality in the mouse kidney structure in the normal control group and the rSj-Cys control group, and renal tubular injury was found in LPS/D-GaIN group, while the renal tubular injury was alleviated in LPS/D-GaIN+rSj-Cys treatment group. There were significant differences in serum levels of Cr (F = 46.33, P < 0.001), BUN (F = 128.60, P < 0.001), TNF-α (F = 102.00, P < 0.001) and IL-6 (F = 202.10, P < 0.001) among the four groups, and lower serum Cr [(85.35 ± 32.05) μmol/L], BUN [(11.90 ± 2.76) mmol/L], TNF-α [(158.27 ± 15.83) pg/mL] and IL-6 levels [(56.72 ± 4.37) pg/mL] were detected in the in LPS/D-GaIN + rSj-Cys group than in the LPS/D-GaIN group (all P values < 0.01). Immunohistochemical staining detected significant differences in TNF-α (F = 24.16, P < 0.001) and IL-10 (F = 15.07, P < 0.01) expression among the four groups, and lower TNF-α [(106.50 ± 16.57)%] and higher IL-10 expression [(91.83 ± 5.23)%] was detected in the LPS/D-GaIN + rSj-Cys group than in the LPS/D-GaIN group (both P values < 0.01). Western blotting and immunohistochemistry detected significant differences in the protein expression of pyroptosis-related proteins NOD-like receptor thermal protein domain associated protein 3 (NLRP3) (F = 24.57 and 30.72, both P values < 0.001), IL-1β (F = 19.24 and 22.59, both P values < 0.001) and IL-18 (F = 16.60 and 19.30, both P values < 0.001) in kidney samples among the four groups, and lower NLRP3, IL-1β and IL-18 expression was quantified in the LPS/D-GaIN + rSj-Cys treatment group than in the LPS/D-GaIN group (P values < 0.05). In addition, there were significant differences in the protein expression of NF-κB signaling pathway-associated proteins p-NF-κB p-P65/NF-κB p65 (F = 71.88, P < 0.001), Toll-like receptor (TLR)-4 (F = 45.49, P < 0.001) and p-IκB/IκB (F = 60.87, P < 0.001) in mouse kidney samples among the four groups, and lower expression of three NF-κB signaling pathway-associated proteins was determined in the LPS/D-GaIN + rSj-Cys treatment group than in the LPS/D-GaIN group (all P values < 0.01). Conclusion rSj-Cys may present a protective effect against acute kidney injury caused by acute liver failure through inhibiting inflammation and pyroptosis and downregulating the NF-κB signaling pathway.

Analysis and suggestions on conflict of interest in the transformation of scientific and technological achievements in medical institutions / 中华医院管理杂志

In recent years, the issue of conflicts of interest in the transformation of scientific and technological achievements in medical institutions in China has become prominent, mainly manifested as personal and institutional conflicts of interest, with the characteristics of complexity and sustainability. At present, there were some problems in the conflict management of scientific and technological achievements transformation of medical institutions, such as insufficient support of relevant laws, regulations and policies, insufficient supervision of medical institutions, and the lack of industry management atmosphere. The author suggestted that government departments should strengthen the formulation of relevant policies and regulations, medical institutions should establish an interest conflict management system and an independent management department, and industry associations should give full play to their role in assisting, so as to provide reference for promoting medical institutions to effectively manage interest conflicts in the transformation of scientific and technological achievements.

Research progress in extracorporeal shock wave therapy for rotator cuff injury / 中华创伤杂志

Rotator cuff injury often leads to shoulder pain and dysfunction. For the injured rotator cuff tendon without continuous interruption, conservative treatment is often used. However, the shoulder is used frequent in daily life, which makes that the rotator cuff injury generally shows gradual aggravation and eventually progresses to complete tear due to poor blood supply of the rotator cuff tendon tissue and weak repair ability. In order to reverse the pathophysiological changes after rotator cuff injury and promote the repair of injured rotator cuff tendon, a series of conservative treatments for rotator cuff injury have been explored. Extracorporeal shock wave therapy (ESWT) is one of the representative treatments, but its molecular biological mechanism in promoting rotator cuff repair is still unclear. Therefore, the authors review the progress of ESWT for rotator cuff injury from aspects of the molecular biological mechanism and clinical application status, so as to provide a reference for future researches and clinical application of ESWT.

Sinicization and reliability and validity of adolescent lifestyle profile-revised 2(ALP-R2) / 中华行为医学与脑科学杂志

Objective:To develop the Chinese version of the adolescent lifestyle profile-revised 2 (ALP-R2) and evaluate its reliability and validity.Methods:The original ALP-R2 was translated into Chinese edition, then tested by random sampling in middle school students.SPSS 23.0 and AMOS 17.0 were conducted exploratory factor analysis and confirmatory factor analysis to evaluate the reliability and validity of the Chinese version of ALP-R2.Results:(1) The Chinese version of ALP-R2 contained 43 items through item analysis, then exploring factor analysis showed that it contained 7 sub-scales(F1: health responsibility, F2: physical activity, F3: nutrition, F4: positive life perspective, F5: stress management, F6: spiritual health, F7: interpersonal relationships)with 40 items, and could explain 61.044% of the total variances. (2) The results of confirmatory factor analysis showed that the revised ALP-R2 had good construct validity( χ2/ df=4.97, GFI=0.98, NNFI=0.97, CFI=0.90, RMSEA=0.12). The scores of various factors in ALP-R2 were significantly correlated with the total score of Chinese adolescent lifestyles scale(CALS)( r=0.38-0.65, all P<0.05). (3) Internal consistency reliability was 0.711-0.801, the test-retest reliability was 0.723-0.822, and split-half reliability was 0.708-0.845. Conclusion:The Chinese version of ALP-R2 has good reliability and acceptable validity, and can be used to evaluate the lifestyle of adolescents.

Effects of S1P/S1PR1 pathway on high glucose induced epithelial-mesenchymal transition of rat renal tubular epithelial cells by regulating ROS/NLRP3 / 中国药理学通报

Aim To explore the effect of S1P/S1PR1 signaling pathway on high glucose(HG)-induced epithelial-mesenchymal transition of rat renal tubular epithelial cells and its possible mechanism. Methods Cells were treated with different concentrations of glucose, and intracellular S1P expression was detected by ELISA and S1PR1 protein expression was detected by Western blot. The cells were divided into normal control group, HG group and HG + siS1PR1 group. The expression of E-cadherin, Vimentin, Fibronectin and Twist mRNA were detected by RT-qPCR and E-cadherin, α-SMA, Vimentin, NLRP3, ASC and NF-κB protein expression were detected by Western blot, and the levels of reactive oxygen species(ROS) were detected by flow cytometry. The cells were divided into normal control group, S1P group and S1P + siS1PR1 group. Vimentin, Snail, α-SMA, NLRP3, ASC and NF-κB protein expressions were detected by Western blot, and ROS levels were measured by fluorescence microscopy. Results ELISA results showed that the content of S1P in cells increased significantly under high glucose stimulation. Western blot results showed that S1PR1 protein expression was significantly higher at 30 mmol · L

DJ1 Ameliorates AD-like Pathology in the Hippocampus of APP/PS1 Mice / 生物医学与环境科学（英文）

OBJECTIVE@#To explore whether the protein Deglycase protein 1 (DJ1) can ameliorate Alzheimer's disease (AD)-like pathology in Amyloid Precursor Protein/Presenilin 1 (APP/PS1) double transgenic mice and its possible mechanism to provide a theoretical basis for exploring the pathogenesis of AD.@*METHODS@#Adeno-associated viral vectors (AAV) of DJ1-overexpression or DJ1-knockdown were injected into the hippocampus of 7-month-old APP/PS1 mice to construct models of overexpression or knockdown. Mice were divided into the AD model control group (MC), AAV vector control group (NC), DJ1-overexpression group (DJ1 +), and DJ1-knockdown group (DJ1 -). After 21 days, the Morris water maze test, immunohistochemistry, immunofluorescence, and western blotting were used to evaluate the effects of DJ1 on mice.@*RESULTS@#DJ1 + overexpression decreased the latency and increased the number of platform traversals in the water maze test. DJ1 - cells were cured and atrophied, and the intercellular structure was relaxed; the number of age spots and the expression of AD-related proteins were significantly increased. DJ1 + increased the protein expression of Nuclear factor erythroid 2-related factor 2 (NRF2), heme oxygenase-1 (HO-1), light chain 3 (LC3), phosphorylated AMPK (p-AMPK), and B cell lymphoma-2 (BCL-2), as well as the antioxidant levels of total superoxide dismutase (T-SOD), total antioxidant capacity (T-AOC), and Glutathione peroxidase (GSH-PX), while decreasing the levels of Kelch-like hydrates-associated protein 1 (Keap1), mammalian target of rapamycin (mTOR), p62/sequestosome1 (p62/SQSTM1), Caspase3, and malondialdehyde (MDA).@*CONCLUSION@#DJ1-overexpression can ameliorate learning, memory, and AD-like pathology in APP/PS1 mice, which may be related to the activation of the NRF2/HO-1 and AMPK/mTOR pathways by DJ1.

The organ involvement and autoantibodies in children with systemic lupus erythematosus / 中华风湿病学杂志

Objective:To explore the correlation between autoantibodies and organ involvement in children with systemic lupus erythematosus (SLE).Methods:From June 2006 to October 2020, 581 children with SLE who were hospitalized in Beijing Children's Hospital for the first time and had autoantibody detection and clinical data in our hospital were selected. A correlation study was carried out on the clinical manifestations and autoantibodies. Data were analyzed with Pearson χ2 or Fisher's exact test. P<0.05 was considered statistically significant. Results:A total of 581 children with SLE were included in this study, with a male to female ratio of 1∶3.6. The average age at diagnosis was (10.6±2.8) years, and the main symptoms were rash (388, 66.8%), fever (335, 57.7%), and joint swelling and pain (170, 29.3%). The most commonly affected organ is the blood system (414, 71.3%), followed by lupus nephritis (257, 44.2%) and arthritis (170, 29.3%). In this study, the positive rate of ANA was 100%, and the positive rates of anti-dsDNA antibody and anti-Sm antibody were 59.7% and 21.2%, respectively. The children with anti-dsDNA antibody positive were more likely to have fever (64.6% vs 47.4%, χ2=16.77, P<0.001), and the kidneys (53.3% vs 30.8%, χ2=28.80, P<0.001) and blood systems (76.1% vs 64.1%, χ2=9.79, P=0.002) were more likely to be involved than anti-dsDNA antibody negative. The proportion of renal involvement (27.8% vs 47.5%, χ2=12.69, P<0.001), blood system (57.7% vs 74.0%, χ2=10.40, P=0.001), lung involvement (12.4% vs 21.1%, χ2=3.88, P=0.049) and cardiac involvement (9.3% vs 17.8%, χ2=4.11, P=0.042) in patients with anti-SSB antibody positive were lower than those in patients with anti-SSB antibody negative. Anti-histone antibody-positive patients were prone to lupus nephritis (56.9% vs 36.6%, χ2=22.62, P<0.001), arthritis (37.6% vs 24.2%, χ2=11.77, P=0.001) and lung involvement (24.3% vs 16.8%, χ2=4.87, P=0.027). Anti-Sm antibody positive patients were prone to skin manifestations such as butterfly erythema (52.8% vs 31.7%, χ2=11.38, P<0.001) and sunlight allergy (13.8% vs 7.4%, χ2=4.96, P=0.026), but the proportion of joint involvement (22.0% vs 31.2%, χ2=4.03, P=0.045) and thrombocytopenia (17.1% vs 27.3%, χ2=5.38, P=0.026) were lower than those of anti-Sm antibody negative. Arthritis (44.4% vs 24.8%, χ2=19.00, P<0.001), secondary SS (28.6% vs 5.4%, χ2=57.98, P<0.001) and parotid gland involvement (25.6% vs 2.9%, χ2=70.84, P<0.001) were more common in RF factor positive children, but the proportion of kidney involvement (30.8% vs 48.2%, χ2=12.57, P<0.001) was lower than in RF negative children. Conclusion:The clinical manifestations of childhood SLE are diverse and highly heter-ogeneous. A variety of autoantibodies are associated with organ involvement and clinical phenotypes, and anti-SSB antibodies may have protective effects in kidney and other organ damage.

Research progress in spatiotemporal sustained release of growth factors in bone tissue engineering / 中华创伤杂志

The spatiotemporal distribution of growth factors in bone tissue-engineered repair and reconstruction is critical. Growth factors can be used in bone tissue engineering through different encapsulation methods. Different encapsulation methods make growth factors have different release kinetics. At present, the common physical entrapment, easily degradable carrier and simple spatial structure usually result in poor sustained release of growth factors by burst release. The optimization of release methods of growth factors enables their release at different times and spaces in a biomimetric manner, which is conducive to improving the effect of tissue repair and avoiding the adverse effects of excessive factors. Starting from the necessity of spatiotemporal sustained release of growth factors, the authors summarize growth factors can attain spatiotemporal sustained release by being directly immobilized on the surface of the carrier, encapsulated in the carrier, encapsulated in the microparticles and encapsulated in the carrier by the microparticles and review the spatiotemporal sustained release of growth factors in different encapsulation methods, so as to provide a reference for optimizing spatiotemporal release of growth factor in bone tissue engineering.

The immune modulation of Th17 and its related cytokines in inflammatory bowel diseases / 中国医师杂志

Inflammatory bowel diseases (IBD) are a kind of non-specific inflammatory disease that occurs in gastrointestinal tract. Abnormal immune regulation is a key factor in its pathogenesis. The acquired immune regulation is mediated by helper T cells (Th), which is reported to play an important role in the pathogenesis of IBD. Th17 is a subtype of CD4 + T cells that could specifically produce interleukin-17 (IL-17) and other related cytokines. In this paper, we review the immune modulation of Th17 and its related cytokines in IBD.

Clinical significance of PDIA3 expression in hepatocellular carcinoma and its effect on the expression of IL6 and IL17 / 中华内分泌外科杂志

Objective:To investigate the clinical significance of protein disulfide isomerase A3 (PDI) A3 (PDIA3) expression in hepatocellular carcinoma tissues and its effect of PDIA3 on the expression of IL6 and IL17 in hepatocellular carcinoma cells.Methods:Immunohistochemistry was used to detect the expression of PDIA3 in the tissues of 72 patients with liver cancer and their adjacent tissues. HepG2 cells were divided into experimental group and control group. The cells in the experimental group were transfected with PDIA3-siRNA plasmid, and the cells in the control group were transfected with MOCK-siRNA plasmid. Fluorescence quantitative PCR was used to detect the content of PDIA3 mRNA in each group of cells. The expressions of PDIA3, IL6 and IL17 in each group of cells were detected by Western blot. The proliferation ability of each group of cells was detected by CCK8.Results:The positive rate of PDIA3 in liver cancer tissues was 85.22% (75/88), and the expression rate in adjacent tissues was 6.81% (6/88). The expression rate of PDIA3 in liver cancer tissues was significantly higher than that in adjacent tissues. The difference was statistically significant ( P<0.001). After transfection of siRNA, the expression levels of PDIA3 mRNA in HepG2 cells in the experimental group and control group were 1.23±0.20 and 0.43±0.12, respectively, and the expression levels of PDIA3 protein were 1.19±0.11 and 0.23±0.08, respectively. The expression levels of IL6 were 1.11±0.15 and 0.57±0.09, respectively. The expression levels of IL17 were 1.19±0.14 and 0.45±0.08, respectively, and the expressions of IL6 and IL17 were significantly decreased (all P<0.05). The absorbance of HepG2 cells in the experimental group and the control group at 120 h was 2.28±0.10 and 1.11±0.09, respectively, and the cell proliferation ability of the experimental group was significantly decreased ( P<0.05) . Conclusions:The expression of PDIA3 is significantly increased in hepatocellular carcinoma, which may be related to the malignancy of hepatocellular carcinoma. PDIA3 affects the proliferation of hepatocellular carcinoma cells by regulating the expression of IL6 and IL17.

Mitochondrial Fission Protein 1 (FIS1) Overexpression in Human Cervical Cancer Cells Promotes Mitochondrial Fission and Reduces Cell Proliferation and Migration Capacity / 中国生物化学与分子生物学报

Mitochondria are dynamic organelles that continuously divide and fuse. In recent years, in addition to the studies related to mitochondrial metabolism, the unique dynamics of mitochondria have gradually attracted researchers' attention. A growing body of research has revealed that mitochondrial dynamics are related to the biological behavior of tumor cells. Mitochondrial fission proteins (mitochondrial fission protein 1, FIS1) mediate the assembly of mitochondrial fission complexes and participate in the execution of mitochondrial fission. They are important proteins in the process of mitochondrial fusion and fission. However, few studies have revealed the expression and role of FIS1 in human cervical cancer. In this study, the expression level of FIS1 in human cervical cancer tissues and paracancer tissues were compared. The results showed that the level of FIS1 mRNA in human cervical cancer tissues was significantly lower than that in paracancer tissues (P<0. 01). Further KEGG pathway and GO Term-BP pathway analysis showed that the differential genes are mainly related to mitochondrial biological functions. Subsequently, HeLa cells with overexpressed FIS1 were investigated for their proliferation, migration, mitochondrial fission and ROS levels. The experimental results showed that FIS1 overexpression decreased HeLa cell proliferation and migration ability, enhanced mitochondrial fission and higher ROS levels. In conclusion, the expression of FIS1 in human cervical cancer cells was attenuated, while overexpression of FIS1 resulted in a series of abnormal biological functions in human cervical cancer cells. Further studies can be carried out to investigate the role of FIS1 in the treatment of human cervical cancer.

Intermedin inhibits lipopolysaccharide-induced polarization of macrophages by activating AMPK signaling pathway / 中国药理学通报

Aim To evaluate the mechanism by which intermdin(IMD)inhibits lipopolysaccha ride(LPS)-induced polarization in RAW264.7 cells.Methods RAW264.7 cells were divided into control groups, LPS groups, LPS+IMD groups, LPS+IMD+Compound C groups.The mRNA expressions of tumor necrosis factor-α,(TNF-α,), CD86, inducible nitric oxide synthase(iNOS), Arginase-1(Arg-1)and CD206 were detected by Realtime-PCR.The protein expressions of p-AMPK, AMPK, TNF-α, intereukin-6(IL-6)and intereukin-10(IL-10)were detected by Western blot.The proportion of CD86+ M1 type cells was detected by Flow cytometry.In addition, the expression levels of supernatant cytokines, including IL-6 and TNF-α, were detected by ELISA.Results Compared with control and LPS groups, IMD treatment could up-regulate the expression level of p-AMPK and the ratio of p-AMPK/AMPK.LPS promoted M1 polarization, since the expressions of CD86, TNF-α and iNOS increased, while the expressions of CD206 and Arg-1 decreased by LPS induction.The proportion of M1 type cells increased and the secretion of TNF-α, IL-6 in the cell supernatant increased.And IMD treatment could inhibit the polarization of M1 induced by LPS.These effects were reversed by Compound C, an inhibitor of AMPK.Conclusion IMD can inhibit the M1-type polarization of LPS-induced macrophages by activating AMPK signaling pathway.

The relation between preoperative thyroid function and postoperative AKI in patients with ASTAAD / 中华胸心血管外科杂志

Objective:To evaluate the association between preoperative thyroid hormones and the postoperative acute kidney injury (AKI) in acute Standford type A aortic dissection (ASTAAD) patients.Methods:The patients with ASTAAD, who underwent surgeries in Beijing Anzhen Hospital from July 2016 to December 2016, were included in this retrospective cohort study. Multivariable regression and stratification analyses were used to examine the association of preoperative thyroid hormone with postoperative AKI.Results:The overall occurrence of postoperative AKI was 42.0%. Multivariate regression revealed that low level of TT3 ( OR=0.08, 95% CI: 0.01-0.94, P=0.04) and TT4 ( OR=0.97, 95% CI: 0.94-1.00, P=0.04) was independently associated with postoperative AKI. Subgroup analyses showed that the relation between TT3 and AKI was significantly noticed in patients with normal TSH levels ( OR=0.004, 95% CI: 0.001-0.16, P<0.01) other than in patients with lower TSH levels ( P=0.26). Conclusion:The present study showed that a low level of TT3 or TT4 was a predictor of postoperative AKI in ASTAAD patients, especially in patients with normal TSH. The thyroid function should be checked before surgical intervention of patients with ASTAAD, and patients with low T3 might be at higher risk of postoperative AKI.

Efficacy comparison of buttress plating and cannulated screw fixation of Regan-Morrey type II ulnar coronoid fractures / 中华创伤杂志

Objective:To compare the clinical effect of buttress plate fixation and cannulated screw fixation of Regan-Morrey type II ulnar coronoid fractures.Methods:A retrospective case control study was made on 53 patients with Regan-Morrey type II ulnar coronoid fractures admitted to Wuxi No.9 People 's Hospital from April 2015 to January 2018，including 36 males and 17 females，aged from 21 to 63 years［（36.3±7.1）years］. Among them，24 patients were treated using buttress plates（plate group），and 29 patients using cannulated screws（screw group）. The operation time and fracture healing time were documented. The visual analogue score（VAS），range of motion of elbow flexion and extension and forearm rotation and Mayo elbow performance score（MEPS）were assessed at postoperative 1，3，6 months and at the last follow-up. The incidence of complications was observed as well. Results:All patients were followed up for 15-18 months［（15.9±1.3）months］. The operation time in plate group［（150.6±24.2）minutes］was longer than that in screw group［（126.8±18.3）minutes］（ P<0.05）. There was no significant difference in fracture healing time or VAS between the two groups（ P>0.05）. After 1，3，6 months and during the last follow-up，the range of motion of elbow joint flexion and extension in plate group［（87.2±5.8）°，（109.2±7.1）°，（121.3±6.2）°，（127.3±5.4）°］was higher than that in screw group［（70.5±9.1）°，（90.2±4.5）°，（108.3±5.1）°，（116.2±4.6）°］，the range of motion of forearm rotation in plate group［（78.3±9.1）°，（98.7±8.6）°，（130.2±7.1）°，（139.2±6.7）°］was higher than that in screw group［（60.1±5.1）°，（80.6±8.7）°，（116.1±5.5）°，（127.3±4.1）°］，and the MEPS in plate group［（30.6±7.6）points，（68.1±6.1）points，（90.2±4.3）points，（95.2±2.1）points］was higher than that in screw group［（27.2±8.1）points，（54.1±7.1）points，（82.1±5.3）points，（88.2±5.2）points］（all P<0.05）. In plate group，one patient sustained superficial wound infection at postoperative 1 week，which was healed uneventfully after surgical debridement and antibiotic therapy；two patients had heterotopic ossification without addition surgery. In screw group，three patients presented screw loosening and fracture redisplacement during early movement，which was healed by reducing the intensity of elbow functional exercise and prolonging the protection time of brace；four patients had heterotopic ossification，among which one combined with elbow stiffness showed improved range of motion of the elbow after elbow release at postoperative 12 months. The incidence of complications in plate group［13%（3/24）］was lower than that in screw group［26%（7/29）］（ P<0.05）. Conclusion:For Regan-Morrey type II ulnar coronoid fractures，the buttress plate fixation is superior to the cannulated screw fixation in fixation strength，recovery of elbow function and incidence of complications in regardless of longer operation time.

Risk factors for 24-hour death in acute type A aortic dissection patients with conservative treatment / 中国胸心血管外科临床杂志

@#Objective    To explore the risk factors for 24-hour death in acute type A aortic dissection (ATAAD) patients with conservative treatment. Methods    From January 2009 to January 2018, 243 ATAAD patients who received non-surgical intervention were admitted in Beijing Anzhen Hospital, including 167 males and 76 females with an average age of 53.0±12.0 years. The risk factors for 24-hour mortality were analyzed. Results    The total in-hospital mortality rate was 37.9% (93/243), and 13.6% (33/243) patients died within 24 hours of onset. We found that left ventricular end diastolic diameter [LVEDD, OR=0.45, 95%CI (0.25, 0.83), P<0.01] and aortic regurgitation [OR=7.26, 95%CI (1.67, 31.53), P<0.01] were independent risk factors for 24-hour death in patients with ATAAD. Conclusion    In this study, LVEDD and aortic regurgitation are identified as independent risk factors for 24-hour mortality in ATAAD patients. Therefore, patients with aortic regurgitation and small LVEDD should be treated with sugery as soon as possible.

Research progress of Dexamethasone sustained release in the treatment of diabetic macular edema / 国际眼科杂志(Guoji Yanke Zazhi)

@#Diabetic macular edema(DME)is the foremost cause of vision impairment and even blindness in patients with diabetes mellitus. Nowadays, the approach in the treatment of DME involves laser photocoagulation, intravitreal injections of anti-VEGF agents or triamcinolone acetonide. However, they still have some limitations. In recent years, dexamethasone intravitreal implant, as a new treatment option, has brought therapeutic hope to DME patients who have poor response to other methods. Meanwhile, it has the advantages of good clinical efficacy, long duration, acceptable safety and good patient tolerability. In this paper, the research advances in dexamethasone intravitreal implant for DME are described.

Association of Serum Glucocorticoids with Various Blood Pressure Indices in Patients with Dysglycemia and Hypertension: the Henan Rural Cohort Study / 生物医学与环境科学（英文）

Objective@#To our knowledge, no definitive conclusion has been reached regarding the relationship between glucocorticoids and hypertension. Here, we aimed to explore the characteristics of glucocorticoids in participants with dysglycemia and hypertension, and to analyze their association with blood pressure indicators.@*Methods@#The participants of this study were from the Henan Rural Cohort study. A total of 1,688 patients 18-79 years of age were included in the matched case control study after application of the inclusion and exclusion criteria. Statistical methods were used to analyze the association between glucocorticoids and various indices of blood pressure, through approaches such as logistic regression analysis, trend tests, linear regression, and restricted cubic regression.@*Results@#The study population consisted of 552 patients with dysglycemia and hypertension (32.7%). The patients with co-morbidities had higher levels of serum cortisol ( @*Conclusions@#Serum deoxycortisol was positively correlated with systolic blood pressure, pulse pressure, mean arterial pressure, mean blood pressure, and mean proportional arterial pressure. Glucocorticoids (deoxycortisol and cortisol) increase the risk of hypertension in people with dysglycemia, particularly in those with T2DM.

Laparoscopic circular stapled gastrointestinal anastomosis using novel device of sealed cap access after total laparoscopic gastrectomy / 中华胃肠外科杂志

Intracorporeal classic gastrointestinal anastomosis using circular stapler in totally laparoscopic gastrectomy (TLG) for gastric cancer requires intracorporeal anvil placement and suitable access for introduction of the circular stapler to the abdominal cavity without gas leak. The novel techniques for anvil placement have been updated, but there is no progress for proper access for circular stapler. In the study, intracorporeal circular-stapled gastrointestinal anastomosis were successfully accomplished using a novel device of sealed cap access with a central hole (WLB-60/70-60/100, Wuhan Widerep Medical Instrument Co.,Ltd, China) customized to the incision protection retractor for the simple and accessible introduction of the circular stapler and anvil under the optimal maintenance of pneumoperitoneum pressure in TLG. In these 3 cases, there was no gas leakage and the pneumoperitoneum was well maintained when performing the gastrointestinal anastomosis, and there was no transition to laparotomy or other anastomosis techniques. The result suggests that the sealed cap access could be a novel choice for introduction of the circular stapler to the abdominal cavity in order to obtain laparoscopic circular-stapled gastroin-testinal anastomosis in TLG.

LCMS-IT-TOF Analysis of Retention Behavior of Sanguisorbae Radix Components on D101 Macroporous Resin and Polyamide Resin / 中国实验方剂学杂志

Objective:To study on the material basis of Sanguisorbae Radix by column chromatography and liquid chromatography-ion trap-time-of-flight mass spectrometry (LCMS-IT-TOF), and analyze the distribution of different components in Sanguisorbae Radix water extract on D101 macroporous resin and polyamide resin. Method:Sanguisorbae Radix water extract was separated by D101 macroporous resin and polyamide resin, and LCMS-IT-TOF was used for detection, chromatography separation was achieved on an ACQUITY UPLC HSS T3 column (2.1 mm×100 mm, 1.8 μm) with the mobile phase consisted of water (A) and acetonitrile (B) for gradient elution (0-10 min, 5%-20%B; 10-18 min, 20%-35%B; 18-23 min, 35%-50%B; 23-28 min, 50%-90%B; 28-30 min, 90%B; 30-33 min, 90%-5%B; 33-35 min, 5%B), the flow rate was 0.3 mL·min-1, the column temperature was 30 ℃. Data acquisition was carried out in electrospray ionization (ESI) under the positive and negative ion modes, the scanning range was m/z 100-1 200. According to mass spectrometry data such as accurate molecular mass and fragment information, combined with literature, different chemical components in loading effluents and ethanol eluents of Sanguisorbae Radix water extract were identified. A heat map of the distribution of components in each fraction was drawn by extracting mass spectrum peak intensity data of each sample. The elution rules of various components were compared visually. Result:The enrichment and separation of D101 macroporous resin and polyamide resin were obvious. Tannins in Sanguisorbae Radix water extract was mainly concentrated in loading effluent of macroporous resin and its water eluent, triterpenoids were mainly distributed in the 90% ethanol eluent of macroporous resin. In the above effluents and eluents, a total of 63 compounds (including isomers) were identified. Among them, 6 compounds, ellagic acid-4-pyranoarabinoside or its isomer, 6-O-galloylnorbergerin, 3-O-galloylnorbergerin, (6-acetyloxy-5,7-dihydroxy-8-methoxy-4-oxochromen-2-yl) acetate, ethyl 2-methyl-5,6-bis (sulfooxy) benzofuran-3- carboxylate were first discovered in Sanguisorbae Radix. Conclusion:The method can quickly and accurately identify the distribution of components in aqueous extract of Sanguisorbae Radix after column chromatography, providing experimental basis for exploring the pharmacodynamic components and mechanism of Sanguisorbae Radix.

YAP/TAZ is related to the postoperative in-hospital death of Stanford type A aortic dissection / 中华胸心血管外科杂志

Objective:This study investigated the association between Yes-associated protein and WW domain-containing transcription regulator protein 1(YAP/TAZ) and the in-hospital surgical mortality rate of STAAD patients.Methods:The mouse β-aminopropionitrile monofumarate(BAPN) model was used to test the level of YAP/TAZ. From July 2016 to December 2016, the blood samples of 139 people who received routine physical examinations consecutively Beijing Anzhen Hospital were included as the control group.According to the inclusion and exclusion requiement, 95 consecutive patients with STAAD who underwent surgery in Beijing Anzhen Hospital during the same period, were involved in the final cohort study. The main outcome measure was in-hospital death. Their blood samples were regarded as the test group. The predictors of postoperative in-hospital death were confirmed by univariate regression analysis. Multivariable logistic regressions were used to analyze the association of the preoperative plasma level of TAZ and the postoperative in-hospital mortality of STAAD patients.Results:The YAP level showed less change in blood samples of both STAAD patients and the BAPN-induced STAAD mice compared to that of the sham control, while TAZ concentration experienced a significant increase. In the crude model, TAZ showed a positive correlation with in-hospital death( OR=1.327, 95% CI: 1.014-1.737, P=0.0392). In adjusted model Ⅰ and adjusted modelⅡ, similar results were found( OR=1.348, 95% CI: 1.010-1.803, P=0.0429; OR=1.353, 95% CI: 1.008-1.816, P=0.0442). Conclusion:The high level of TAZ in the blood suggested poor surgical prognosis for STAAD patients, and patients with a TAZ level ≥13 ng/ml had much higher mortality.