46 results on '"Min-min Wang"'
Search Results
2. Aspirin intervention before ICU admission reduced the mortality in critically ill patients with acute kidney injury: results from the MIMIC-IV
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Yao Meng, Yi Lin, Jia-Wei Zhang, Wen-Li Zou, Yue-Ming Liu, Xiao-Gang Shen, Quan-Quan Shen, Min-Min Wang, Li-Na Shao, Hong-Yuan Feng, Yan Zhu, Jing-Ting Yu, Bo Lin, and Bin Zhu
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AKI ,acute kidney injury ,aspirin ,intensive care unit ,MIMIC IV ,Therapeutics. Pharmacology ,RM1-950 - Abstract
Background: Aspirin, with its pleiotropic effects such as anti-inflammatory and anti-platelet aggregation, has been widely used for anti-inflammatory, analgesic, and cardiovascular diseases. However, the association between the use of aspirin before the intensive care unit (ICU) and clinical outcomes in critically ill patients with acute kidney injury (AKI) is unknown.Methods: Patients with AKI in this retrospective observational study were selected from the Marketplace for Medical Information in Intensive Care IV (MIMIC-IV). The association between aspirin intervention and 30-day mortality was assessed using Cox proportional hazards model. Logistic regression models were used to assess the association of aspirin intervention with the risks of intracranial hemorrhage, gastrointestinal bleeding and blood transfusion. The propensity score matching (PSM) method was adopted to balance the baseline variables. Sensitivity analysis was performed to validate the results by multiple interpolations for the missing data.Results: The study included 4237 pre-ICU aspirin users and 9745 non-users. In multivariate models, we found a decreased risk of mortality in those who received aspirin before ICU compared to those who did not (30-day:hazard ratio [HR], 0.70; 95% CI, 0.62–0.79; p < 0.001; 90-day:HR, 0.70; 95% CI, 0.63–0.77, p < 0.001; 180-day:HR, 0.72; 95%CI,0.65–0.79, p < 0.001). This benefit was consistent in the post-PSM analyses, sensitivity analyses, and subgroup analyses. Moreover, aspirin intervention was associated with a reduced risk of intracranial hemorrhage and gastrointestinal bleeding (HR, 0.16; 95% CI, 0.10–0.25; p < 0.001; HR, 0.59; 95% CI, 0.38–0.88, p = 0.012) after being adjusted by relating covariates, whereas with a increased risk of blood transfusion (HR, 1.28; 95% CI, 1.16–1.46; p < 0.001).Conclusion: Patients with AKI treated with aspirin before ICU admission might have reduced 30-day, 90-day and 180-day mortality without increasing the risk of intracranial hemorrhage (ICH) or gastrointestinal bleeding, but may increase the risk of transfusion.
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- 2023
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3. Excess selenium intake is associated with microalbuminuria in female but not in male among adults with obesity: Results from NHANES 2009–2018
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Jia-wei Zhang, Yi Lin, Yue-min Liu, Min-min Wang, Jian-guang Gong, Xiao-gang Shen, Quan-quan Shen, Bo Lin, Wei-er Su, Yuan-cheng Gao, Chen-yi Yuan, Zhi-hui Pan, and Bin Zhu
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dietary selenium ,microalbuminuria ,chronic kidney disease (CKD) ,National Health and Nutrition Examination Survey (NHANES) ,epidemiology ,Nutrition. Foods and food supply ,TX341-641 - Abstract
IntroductionSelenium is a critical trace element with antioxidant activities that has been related to the preservation of kidney function. Few studies, however, have looked at the effects of excess selenium on kidneys. The purpose of the present study was performed to investigate the relationship between dietary selenium intake and the prevalence of microalbuminuria in American adults with obesity.MethodsA total of 8,547 participants with obesity in the National Health and Nutrition Examination Survey (NHANES) with the age of 19 years or older were included in the present study. Multivariable regression and subgroup analyses were performed to examine the association between dietary selenium and microalbuminuria in the two genders, separately. A selenium intake above the median was defined as high selenium intake.ResultsDietary selenium intake was significantly higher in men compared to women (139.49 μg/day vs. 101.06 μg/day; P < 0.0001). Among female participants, the prevalence of microalbuminuria was significantly higher in participants with a high selenium intake compared with those without a high selenium intake (13.82 vs. 9.96%; P = 0.008), whereas this difference did not exist in male participants (10.79 vs. 11.97%; P = 0.40). Dietary selenium is not significantly correlated with microalbuminuria (P = 0.68) in the male population, whereas each 1 μg/day of increase in selenium consumption was independently associated with a 6h higher risk of microalbuminuria (OR = 1.006; 95% CI, 1.001–1.011, P = 0.01) in females.ConclusionAccording to our research, excessive selenium consumption is positively correlated with microalbuminuria in females with obesity, but not in males with obesity.
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- 2023
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4. Is prolonged intermittent renal replacement therapy actually safe for hemodynamically unstable patients
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Patrick M. Honore, Sydney Blackman, Emily Perriens, Ibrahim Bousbiat, and Min-Min Wang
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PIRRT ,Hemodynamic stability ,Controversy ,Small amount of acetate ,Medical emergencies. Critical care. Intensive care. First aid ,RC86-88.9 - Published
- 2023
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5. Family history of esophageal cancer modifies the association of serum lipids and malignant esophageal lesions: a nested case-control study from the 'Endoscopic Screening for Esophageal Cancer in China' trial
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Min-Min Wang, Chuan-Hai Guo, Feng-Lei Li, Rui-Ping Xu, Zhen Liu, Ya-Qi Pan, Fang-Fang Liu, Ying Liu, Hong Cai, Meng-Fei Liu, Zhong-Hu He, Yang Ke, and Jing Ni
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Medicine - Abstract
Abstract. Background:. The association of lipids and cancer has varied greatly among different cancer types, lipid components and study populations. This study is aimed to investigate the association of serum lipids and the risk of malignant lesions in esophageal squamous epithelium. Methods:. In the “Endoscopic Screening for Esophageal Cancer in China” (ESECC) trial, serum samples were collected and tested for total cholesterol (TC), triglycerides, low-density lipoprotein cholesterol (LDL-C), and high-density lipoprotein cholesterol at the time of subject enrollment. Cases were defined as malignant esophageal lesions identified by baseline endoscopic examination or by follow-up to May 31, 2018. Controls were randomly selected using incidence density sampling in the same cohort. Conditional logistic models were applied to identify the association of serum lipids and the risk of malignant esophageal lesions. Effect modification was evaluated by testing interaction terms of the factor under assessment and these serum lipid indicators. Results:. No consistent association between serum lipid levels and esophageal malignant lesions were found in a pooled analysis of 211 cases and 2101 controls. For individuals with a family history of esophageal cancer (EC), high TC, and LDL-C were associated with a significantly increased risk of having malignant lesions (odds ratio [OR]High vs. Low TC = 2.22, 95% confidence interval [CI]: 1.14–4.35; ORHigh vs. Low LDL-C = 1.93, 95% CI: 1.01–3.65). However, a negative association was observed in participants without an EC family history (ORHigh vs. Low TC = 0.69, 95% CI: 0.48–0.98, Pinteraction = 0.002; ORHigh vs. Low LDL-C = 0.50, 95% CI: 0.34–0.76, Pinteraction
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- 2021
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6. Synthesis and characterization of carboxymethyl cellulose/organic montmorillonite nanocomposites and its adsorption behavior for Congo Red dye
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Min-min Wang and Li Wang
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carboxymethyl cellulose ,organic montmorillonite ,nanocomposite ,adsorption ,Congo Red dye ,River, lake, and water-supply engineering (General) ,TC401-506 - Abstract
A series of carboxymethyl cellulose/organic montmorillonite (CMC/OMMT) nanocomposites with different weight ratios of carboxymethyl cellulose (CMC) to organic montmorillonite (OMMT) were synthesized under different conditions. The nanocomposites were characterized by the Fourier transform infrared (FT-IR) spectrophotometer, X-ray diffraction (XRD) method, transmission electron microscope (TEM), scanning electron microscope (SEM), and thermal gravimetric (TG) analysis. The results showed that the introduction of CMC may have different influences on the physico-chemical properties of OMMT and intercalated-exfoliated nanostructures were formed in the nanocomposites. The effects of different reaction conditions on the adsorption capacity of samples for Congo Red (CR) dye were investigated by controlling the amount of hexadecyl trimethyl ammonium bromide (CTAB), the weight ratio of CMC to OMMT, the reaction time, and the reaction temperature. Results from the adsorption experiment showed that the adsorption capacity of the nanocomposites can reach 171.37 mg/g, with the amount of CTAB being 1.0 cation exchange capacity (CEC) of MMT, the weight ratio of CMC to OMMT being 1:1, the reaction time being 6 h, and the reaction temperature being 60°C. The CMC/OMMT nanocomposite can be used as a potential adsorbent to remove CR dye from an aqueous solution.
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- 2013
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7. Hollow N-doped carbon spheres with anchored single-atom Fe sites for efficient electrocatalytic oxygen reduction
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Min-min WANG, Chao FENG, Yun-qi LIU, and Yuan PAN
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Media Technology - Published
- 2023
8. Novel mutation in the SALL1 gene in a four-generation Chinese family with uraemia: A case report
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Jia-Xi Fang, Jin-Shi Zhang, Min-Min Wang, and Lin Liu
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General Medicine - Published
- 2022
9. Predictive Value of monocyte to HCL-C ratio for Coronary Artery Lesion and Intravenous Immunoglobulin Resistance in Kawasaki Disease
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Jia-Ran Wang, Hai-Zhao Zhao, Lu-Jie Chang, Xue Xu, Yuan Gao, Meng Li, Qing-Yu Kong, Min-Min Wang, and Cui-Fen Zhao
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Purpose We aimed to investigate the predictive validity of monocyte to high-density lipoprotein cholesterol ratio (MHR) for coronary artery lesions (CALs) and intravenous immunoglobulin (IVIG) resistance in Kawasaki disease (KD). Methods MHR values of a total of 207 KD patients were calculated and analyzed with regard to their clinical characteristics and outcomes. We compared the differences in clinical data and laboratory parameters between CAL + group and CAL- group as well as between IVIG-resistant group and IVIG-responsive group. Spearman correlation analysis was applied to evaluate the correlation between C-reactive protein (CRP) and MHR. Multivariate logistic regression was used to identify risk factors of CALs and IVIG resistance. Receiver operating characteristic (ROC) curve analysis was chosen to determine the optimal cutoff value of MHR and its validity in predicting CALs and IVIG resistance. Results The MHR level was significantly higher in CAL + group, with cut-off value of 1.30 g/L, yielding sensitivity of 0.753 and specificity of 0.805, as well as in IVIG-resistant group, with cut-off value of 1.03 g/L, yielding sensitivity of 0.97 and specificity of 0.485. Multivariate logistic regression showed that MHR was an independent risk factor for CALs but not for IVIG resistance. According to the Spearman correlation analysis, CRP was positively correlated with the MHR. Conclusions As a practical, cost-effective inflammatory biomarker, MHR has a significantly predictive value in KD children complicated with CALs and IVIG-resistance. Paying more attention to the changes of MHR in KD children may contribute to better understanding of KD development and prognosis in clinical practice.
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- 2023
10. A geniposide-phospholipid complex ameliorates posthyperuricemia chronic kidney disease induced by inflammatory reactions and oxidative stress
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Mu-xuan Wang, Min-min Wang, Chao Liu, Jia-shu Chen, Jian-shu Liu, Xu Guo, Meng-qi Zhang, Jing Zhang, Jin-yue Sun, and Zhi-xin Liao
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Pharmacology ,Inflammation ,Mice ,Oxidative Stress ,Phosphatidylinositol 3-Kinases ,Kelch-Like ECH-Associated Protein 1 ,NF-E2-Related Factor 2 ,Animals ,Iridoids ,Renal Insufficiency, Chronic ,Reactive Oxygen Species ,Phospholipids ,Uric Acid - Abstract
Hyperuricemia is a common metabolic disease and is one of the factors that could induce chronic kidney disease (CKD). Geniposide (GEN) is a typical natural iridoid glucoside compound with a series of biological activities, but the poor bioavailability of GEN limits its clinical application. In this context, the pharmacological activity of the geniposide-phospholipid complex (GEN-PLC) in ameliorating posthyperuricemia CKD was evaluated by in vitro and in vivo experiments in this study. In vitro cell experiments showed that GEN-PLC treatment markedly decreased inflammatory cytokine levels and reactive oxygen species levels compared with those of GEN in uric acid-treated HKC cells. In vivo research results confirmed that a high concentration of uric acid could cause CKD by increasing inflammatory cytokines and reactive oxygen species in hyperuricemic mice. At the same time, GEN-PLC could regulate the PI3K/AKT/NF-κB and Keap1/Nrf2/HO-1 signaling pathways to effectively inhibit the inflammatory response and oxidative stress, thereby ameliorating posthyperuricemia CKD, and the therapeutic effect was better than that of GEN. In addition, the preparation technology of GEN-PLC was optimized, and the physiochemical analysis explained the intermolecular interactions of the two components. Based on the research results, GEN-PLC could enhance the bioavailability of GEN and become a promising candidate for clinical drug development.
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- 2022
11. Synthesis and Bioactivity Evaluation of Novel Nuciferine Derivatives with Antihyperuricemia and Nephroprotective Effects
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Yu-kai Zhang, Min-min Wang, Mu-xuan Wang, Zhen Wang, Qin-liang Yang, Jia-shu Chen, Bin Sun, Jin-yue Sun, Yu-fa Liu, and Chao Liu
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- 2022
12. The structure, electronic, magnetic and optical properties of the Co-X (X = B, C, N, O or F) codoped single-layer WS2
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Min-Min Wang, Yuhong Huang, Anwar Ali, Xiumei Wei, and Jian-Min Zhang
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Materials science ,Magnetic moment ,Infrared ,business.industry ,Magnetic semiconductor ,Condensed Matter Physics ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,Crystallography ,Semiconductor ,Half-metal ,Absorption (electromagnetic radiation) ,business ,Single layer ,Visible spectrum - Abstract
We use the first-principle methods to systematically study the structural, electronic, magnetic and optical characteristics of the perfect and Co-X (X = B, C, N, O or F) codoped single-layer WS2. The results show that firstly, all Co-X (X = B, C, N, O or F) codoped single-layer WS2 are easier to form in S-rich environment than in W-rich environment. Second, although the perfect single-layer WS2 is non-magnetic semiconductor (NM-SC), the Co-X (X = B, C, N or F) codoped single-layer WS2 become to magnetic semiconductor (M − SC) with magnetic moments 2, 3, 2 or 2 μ B , while the Co–O codoped single-layer WS2 transforms to magnetic half metal (M-HM) with magnetic moment 1 μ B . Thirdly, comparing with the perfect single-layer WS2, the Co-X (X = B, C, N, O or F) codoped single-layer WS2 show not only the red-shifted absorption edges but also enhanced absorption rate in infrared and visible light region, implying the Co-X (X = B, C, N, O or F) codoped single-layer WS2 have great application prospects in infrared and visible light detection.
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- 2021
13. Numerical Study on Flow and Cooling Characteristics for Supersonic Film Cooling
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Min-min Wang, Xiao-ming Tan, Jing-zhou Zhang, and Yong Shan
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Fluid Flow and Transfer Processes ,Gas turbines ,Materials science ,Mechanical Engineering ,Flow (psychology) ,02 engineering and technology ,Mechanics ,Condensed Matter Physics ,01 natural sciences ,Turbine ,010305 fluids & plasmas ,020303 mechanical engineering & transports ,0203 mechanical engineering ,0103 physical sciences ,Thermal ,Supersonic speed - Abstract
With the booming performances of the gas turbine engine, the turbine vane of the gas turbine engine experiences more extreme thermal environment with supersonic flows. The film cooling appl...
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- 2017
14. Numerical investigation on adiabatic film cooling effectiveness and heat transfer coefficient for effusion cooling over a transverse corrugated surface
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Min-min Wang, Xiao-ming Tan, Jing-zhou Zhang, and Li-hong Qu
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Surface (mathematics) ,Adiabatic wall ,Materials science ,Numerical computation ,Aerospace Engineering ,Thermodynamics ,02 engineering and technology ,Heat transfer coefficient ,01 natural sciences ,010305 fluids & plasmas ,0203 mechanical engineering ,Transverse corrugated surface ,0103 physical sciences ,Heat transfer ,Adiabatic process ,Motor vehicles. Aeronautics. Astronautics ,Mechanical Engineering ,TL1-4050 ,Mechanics ,Aspect ratio (image) ,Transverse plane ,020303 mechanical engineering & transports ,Effusion cooling ,Adiabatic film cooling effectiveness ,Layer (electronics) - Abstract
Three-dimensional numerical computations are conducted to investigate the effects of the blowing ratio and corrugation geometry on the adiabatic film cooling effectiveness as well as the heat transfer coefficient over a transverse corrugated surface. It is noticeable that the adiabatic wall temperature on the wavy valley of the transverse corrugated surface is relatively lower than that on the wavy peak. Surface corrugation has a relatively obvious influence on the laterally-averaged adiabatic film cooling effectiveness in the region where the effusion film layer is developed, but has little influence in the front region. Compared to a flat surface, the transverse corrugated surface produces a smaller adiabatic film cooling effectiveness and a higher heat transfer coefficient ratio. The effusion cooling difference between the flat and corrugated surfaces behaves more obviously under a small aspect ratio of the wavy corrugation.
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- 2017
15. Preoperation risk factor analysis in orthotopic liver transplantation with pretransplant artificial liver support therapy: APASL\Abstract\63
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QI-FA, Y E, JIN-ZHONG, YUEN, YIN-ZI, MING, LI-SHI, ZHONG, SHAI-HONG, ZHU, KUN, W U, MAO-ZU, ZHANG, and MIN-MIN, WANG
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- 2004
16. Synthesis and magnetic property of a cobalt complex constructed by a linear Co–NNN–Co unit
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Tongming Sun, Wang Jin, Min−Min Wang, Wang Chun, Miao Wang, Lanping Hu, Yanfeng Tang, and Jinli Zhu
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Diffraction ,010405 organic chemistry ,chemistry.chemical_element ,010402 general chemistry ,01 natural sciences ,0104 chemical sciences ,Ion ,Inorganic Chemistry ,Crystallography ,chemistry.chemical_compound ,chemistry ,Ferromagnetism ,Octahedron ,Materials Chemistry ,Cluster (physics) ,Imidazole ,Physical and Theoretical Chemistry ,Cobalt ,Unit (ring theory) - Abstract
A dinuclear CoII cluster, [Co2(L)8(N3)(H2O)2]Cl3·3CH3OH·5H2O (1, L = 1-methyl--1H-benzo[d]imidazole) is constructed. Singe-crystal X-ray diffraction reveals that azido contributes a rare linear coordination mode of Co–NNN–Co in complex 1, and both of CoII ions are located in {N5O} environments with octahedral geometries. Magnetic properties exhibit dominant ferromagnetic couplings between the two CoII ions.
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- 2020
17. Oxidative stress modulates the expression of toll‑like receptor 3 during respiratory syncytial virus infection in human lung epithelial A549 cells
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Jing‑Xian Chen, Huan Qiu, Min Lu, Sheng‑Hai Huang, Xuan Wu, Min‑Min Wang, Tao Sun, Chuan‑Long Zhang, and Wei‑Wei Lv
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0301 basic medicine ,Cancer Research ,viruses ,Inflammation ,Respiratory Syncytial Virus Infections ,medicine.disease_cause ,Nitric Oxide ,Biochemistry ,Superoxide dismutase ,03 medical and health sciences ,0302 clinical medicine ,Immune system ,Superoxide Dismutase-1 ,Interferon ,Genetics ,medicine ,Humans ,Molecular Biology ,Lung ,A549 cell ,Toll-like receptor ,biology ,Chemistry ,Hydroxyl Radical ,virus diseases ,Epithelial Cells ,respiratory system ,Molecular biology ,Respiratory Syncytial Viruses ,Toll-Like Receptor 3 ,Oxidative Stress ,030104 developmental biology ,Oncology ,Gene Expression Regulation ,Apoptosis ,A549 Cells ,biology.protein ,Molecular Medicine ,medicine.symptom ,Oxidative stress ,030215 immunology ,medicine.drug - Abstract
Toll‑like receptor 3 (TLR3) can react with double stranded RNA and is involved in the inflammatory response to respiratory syncytial virus (RSV) infection. Also, oxidative stress has been reported to be involved in RSV infection. However, the correlation between oxidative stress and TLR3 activation during RSV infection is unclear. Therefore, the present study investigated the association between TLR3 expression and oxidative stress modulation during RSV infection in A549 cells. For comparison, seven treatment groups were established, including RSV‑treated cells, N‑acetyl‑L‑cysteine (NAC)+RSV‑treated cells, oxidant hydrogen peroxide (H2O2)+RSV‑treated cells, normal cell control, inactivated RSV control, NAC control and H2O2 control. The mRNA expression changes of TLR3, interferon regulatory factor‑3 (IRF3), nuclear factor‑κB (NF‑κB) and superoxide dismutase 1 (SOD1) were measured using semi‑quantitative reverse transcription‑polymerase chain reaction, and the protein changes of TLR3 and phospho‑NF‑κB p65 were determined using western blot in A549 cells from the different treatment groups. The present study also evaluated the differences in hydroxyl free radical (·OH), nitric oxide (NO) and total SOD activity in the different treatment groups. The results demonstrated that RSV infection of A549 cells increased the levels of ·OH and NO, while decreasing the activity of total SOD. Pretreatment of A549 cells with H2O2 prior to RSV infection upregulated the mRNA and protein expression of TLR3 and NF‑κB, and downregulated the mRNA expression of IRF3 and SOD1, as well as the total SOD activity. When the infected cells were pretreated with NAC, the mRNA and protein expression of these genes were reversed. These variations in the TLR3‑mediated signaling pathway molecules suggested that oxidative stress may be a key regulator for TLR3 activation during RSV infection. RSV‑induced oxidative stress may potentially activate TLR3 and enhance TLR3‑mediated inflammation. These results may provide better understanding of the RSV‑induced inflammatory and immune pathways, and may also contribute to the drug development and prevention of human RSV diseases.
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- 2017
18. Synthesis, crystal structures, and magnetic properties of two supramolecular coordination complexes constructed by sulfonate groups
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Shouchun Zhang, Jianliang Zhou, Yuan-yuan Wang, Yan Huo, Huawu Yang, Kejun Zhong, and Min-min Wang
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chemistry.chemical_compound ,Crystallography ,Sulfonate ,chemistry ,Hydrogen bond ,Magnetism ,Materials Chemistry ,Supramolecular chemistry ,Antiferromagnetism ,chemistry.chemical_element ,Crystal structure ,Physical and Theoretical Chemistry ,Copper - Abstract
Two supramolecular coordination complexes, [Cu(hps)(H2O)] (1) (hps = 4-hydroxypyridone-3-sulfonic acid) and [Cu(phen)(SO4)(H2O)2] (2) (phen = 1,10-phenanthroline), have been synthesized and characterized structurally as well as magnetically. The two complexes both exhibit supramolecular networks originating from interactions such as hydrogen bonding, π–π interactions and C–H O contacts. The magnetic properties of 1 and 2 have been investigated from 1.8 to 300 K. Results indicate that 1 and 2 show antiferromagnetic interactions between Cu(ΙΙ) centers.
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- 2013
19. Synthesis, crystal structure and magnetic properties of novel copper compound Cu(phen)(m-CBA)2
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Jianliang Zhou, Xiao-yi Yi, Min-min Wang, Yuan-yuan Wang, Yan Huo, Shouchun Zhang, and Ying-ying Gu
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Metals and Alloys ,Center (category theory) ,chemistry.chemical_element ,Crystal structure ,Geotechnical Engineering and Engineering Geology ,Condensed Matter Physics ,Nitrogen ,Copper ,Paramagnetism ,Crystallography ,chemistry ,Materials Chemistry ,Molecule ,Coordination geometry ,Monoclinic crystal system - Abstract
A novel compound Cu(phen)(m-CBA) 2 was synthesized with m-chlorobenzoic acid(m-CBA), 1,10-phenanthroline(phen) and Cu(OAc) 2 ·H 2 O. It was characterized by IR, UV, elemental analyses and X-ray crystallography. It crystallizes in the monoclinic crystal system with C 2/ c space group, a =2.9699(4) nm, b =1.15452(2) nm, c =1.5335(2) nm, β=111.118(2)°, V =4.905 1(1) nm 3 , Z =8, F (000)=2 328, R 1 =0.072 8, w R 2 =0.223 4 [ I >2σ( I )]. Structure analysis shows that the copper center coordinates with two nitrogen atoms from one 1,10-phenanthroline molecule, two oxygen atoms from two m-chlorobenzoic acid molecules, giving a distorted squared planar coordination geometry. This novel compound shows paramagnetic interactions between copper centers.
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- 2011
20. Study on Adsorption Properties of Lignocellulose/ Organic Montmorillonite Nanocomposites
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Aiqin Wang, Li Wang, and Min Min Wang
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Materials science ,Nanocomposite ,Scanning electron microscope ,Intercalation (chemistry) ,General Engineering ,Congo red ,chemistry.chemical_compound ,Adsorption ,Montmorillonite ,chemistry ,Chemical engineering ,Polymer chemistry ,Molecule ,Ammonium - Abstract
Lignocellulose/organic montmorillonite (LNC/OMMT) nanocomposites have been prepared by the solution intercalation method from pristine montmorillonite (MMT),using Cetyl three methyl brominated ammonium(CTAB) as the reactive compatibilizer between LNC and MMT .Then the nanocomposites were characterized by Fourier transform infrared(FT-IR),X-ray diffraction(XRD) and Scanning electron microscope(SEM).Diffferent preparation conditions influence of the adsorption property on nanocomposites for Congo Red were studied. The characterization results indicate that LNC molecules have intercalated into the interlayers of OMMT and increased its interlayer distance. The intercalated structure was formed in LNC/OMMT nanocomposits. The adsorption result show that the nanocomposits have higher adsorption capacity with weight ratio of LNC to OMMT 6:1, reaction temperature 50°C, reaction time 6 h, concentration of NaOH 10%.
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- 2011
21. Steady state creep of in situ TiB plus La2O3 reinforced high temperature titanium matrix composite
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Wei Jie Lu, Jining Qin, Di Zhang, Feng Zhu, Bo Ji, Lv Xiao, Min Min Wang, and Yi Fei Chen
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Steady state ,Materials science ,Mechanical Engineering ,Alloy ,Composite number ,engineering.material ,Condensed Matter Physics ,Casting ,Stress (mechanics) ,Hot working ,Creep ,Mechanics of Materials ,engineering ,General Materials Science ,Dislocation ,Composite material - Abstract
TiB and La 2 O 3 reinforced titanium matrix composite is in situ synthesized by common casting and hot working technologies. Steady state creep behaviors of the matrix alloy and the TiB plus La 2 O 3 reinforced composite are investigated in the temperature range 873–973 K. Creep resistance of the composite is significantly enhanced by the reinforcements. Steady state creep behaviors of the matrix alloy and composite are both controlled by dislocation climbing. The refined TiB whiskers La 2 O 3 particles are responsible for the threshold stresses. Creep enhancement of the composite can be mainly attributed to threshold stresses at lower temperatures and stress transfer effects at higher temperatures. A power-law constitutive equation for steady state creep of the composite is built up.
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- 2009
22. Liver support therapy with molecular adsorbents recirculating system in liver failure: a summary of 252 cases from 14 centers in China
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Yi-jun Yang, Shi-jun Chen, Qi-fa Ye, Shi-bin Chen, Yue-xin Zhang, Yi-he Liu, Xin-min Zhou, Xiao-qiang Ding, Wen-ya Wang, Hong-tao Luo, Min-min Wang, Li-min Guo, and Xiao-bin Hu
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Hepatitis B virus ,Prothrombin time ,medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,General Medicine ,Hepatitis B ,medicine.disease ,medicine.disease_cause ,Gastroenterology ,Extracorporeal ,Surgery ,Blood pressure ,Renal Dialysis ,Internal medicine ,medicine ,Humans ,Sorption Detoxification ,Stage (cooking) ,business ,Survival rate ,Hepatic encephalopathy ,Liver Failure - Abstract
Background A liver support therapy, named molecular adsorbents recirculating system (MARS), has been used for more than 700 liver failure patients in China. We made here a summary to evaluate the effects of MARS treatment in different applications with emphasis on hepatitis B virus (HBV) based liver failure. Methods This report analyzed data of 252 patients (mean age (44.9+/- 12.7) years) in three groups: acute severe hepatitis (ASH), subacute severe hepatitis (SSH) and chronic severe hepatitis (CSH). The largest group was CSH (156 patients, 61.9%), and 188 patients (74.6%, 188/252) were infected with HBV. Results MARS treatments were associated with significant reduction of albumin bound toxins and water-soluble toxins. Most of the patients showed a positive response with a significant improvement of multiple organ function substantiated by a significant increase in prothrombin time activity (PTA) and median arterial pressure (MAP). There was a decrease in hepatic encephalopathy (HE) grade and Child-Turcotte-Pugh (CTP) scale. Thirty-nine of 188 HBV patients (20.7%) dropped out of the commendatory consecutive therapy ending with lower survival of 43.6% while the rest of the 149 patients had a survival rate of 62.4%. Survival within the ASH and SSH groups were 81.2% and 75.0%, respectively. In the CSH group, end stage patients were predominant (65/151, 43%), whereas the early and middle stage patients had a better prognosis: early stage survival, including orthotopic liver transplantation (OLT) survival of 91.7%, middle stage survival of 75%, end stage survival of 33.8%. Conclusions MARS continues to be the most favorable extracorporeal treatment for liver support therapy in China for a wide range of conditions, including the majority of hepatitis B related liver failure conditions. The appropriate application of MARS for the right indications and stage of hepatic failure, as well as the fulfillment of prescribed treatments, will lead to the optimal therapeutic result.
- Published
- 2008
23. Clinical Experience with Molecular Adsorbent Recirculating System (MARS) in Patients with Drug-induced Liver Failure
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Kaichun Wu, Jie Ding, Li Xu, Xin-min Zhou, Xin Wang, Daiming Fan, Min-min Wang, Yan Yang, Ling Zhao, and Ji-yan Miao
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Drug ,medicine.medical_specialty ,business.industry ,media_common.quotation_subject ,Biomedical Engineering ,Liver failure ,Medicine (miscellaneous) ,Bioengineering ,General Medicine ,Mars Exploration Program ,Gastroenterology ,Biomaterials ,Internal medicine ,Medicine ,In patient ,business ,media_common - Published
- 2004
24. Application of Molecular Adsorbents Recirculating System to remove NO and cytokines in severe liver failure patients with multiple organ dysfunction syndrome
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Xia Guo, Hong-yu Zhang, Min-min Wang, Dao-zhen Xu, Li-min Guo, Jian-ping Zhang, Wei-yan Zhang, Lian-he Lu, Feng-xia Sun, Bao-shun Li, Ling-hang Wang, Xiao-dong Liu, Zhong-ping He, Jing-yuan Liu, Yun Yao, and Hao Han
- Subjects
medicine.medical_specialty ,Hepatology ,business.industry ,medicine.medical_treatment ,Albumin ,Hemodynamics ,Liver transplantation ,medicine.disease ,Gastroenterology ,Surgery ,Cytokine ,Internal medicine ,Severity of illness ,medicine ,Respiratory function ,Multiple organ dysfunction syndrome ,business ,Hepatic encephalopathy - Abstract
Background: Molecular Adsorbents Recirculating System (MARS) is a new promising artificial liver support therapy, the aim of this study was to assess the effectiveness of MARS to remove nitrous oxide (NO) and cytokines insevere liver failure patients with multiple organ dysfunction syndrome (MODS). Methods: Sixty single MARS treatments were performed with length of 6-24h on 24 severe liver failure patients (18 males/6 females) with MODS. Results: The MARS therapy was associated with a significant removal of NO and certain cytokines such as TNF-a, IL-6, IL-8, and INF-γ, together with marked reduction of other non-water-soluble albumin bound toxins and watersoluble toxins, these were associated with a improvement of the patients' clinical conditions including hepatic encephalopathy, deranged hemodynamic situation and as well as renal and respiratory function, thus resulted into marked decrease of Sequential Organ Failure Assessment (SOFA) score and improved outcome: nine patients were able to be discharged from the hospital or bridged to successful liver transplantation, the overall survival of 24 patients was 37.5%. Conclusion: We can confirm the positive therapeutic impact and safety to use MARS on liver failure patients with MODS associated with elevated levels of NO and cytokines.
- Published
- 2003
25. EFFECT OF SALINITY ON SEA ICE MOTION.
- Author
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Bing-Ru Li, Min-Min Wang, Xiu-Yang Lu, Zhan-Hong Wan, and Song He
- Subjects
- *
LARGE eddy simulation models , *SALINITY , *HEAT transfer , *EDDY currents (Electric) , *MATHEMATICAL models of turbulence - Abstract
We combined large eddy simulation (LES) with a thermodynamic slab ice model to simulate and study the sea ice motion and frazil ice dynamics in the ocean mixed layer in the Arctic winter. To show the accurate representation of leads in models, fluxes distributed laterally beneath leads and sea ice need to be parameterized. The 3-D LES model, which is developed from a 2-D turbulence model, is used to model the convection of beneath leads and sea ice. The experiments were then achived by combining the LES model with the ice model. The concentration of frazil ice was modeled using the Omstedt and Svensson model. The ice crystal radius and growth rates were assumed to be constant and the temperature and salinity changes with depth were taken into account. Salinity distribution and frazil ice concentration were influenced by ice motion, and variations in ocean salinity during freezing and thawing were also investigated. Entrained flow caused by the movement of sea ice has a significant influence on the eddy. Sea ice roughness is also important in the formation of the eddy current, and the values of the ice crystal rise velocity and the ice concentration source term coefficient influence frazil ice dynamics. The effects of sea ice thermodynamic dissipation on the sea is more remarkable, affecting the heat transfer to the atmosphere. The brine rejected during ice crystal formation and dilution of seawater are other important mechanisms of marine cyclical shocks. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
26. [Study on maternal-fetal status of Pb, As, Cd, Mn and Zn elements and the influence factors]
- Author
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Pei, Wang, Ying, Tian, Rong, Shi, Xiang-yu, Zou, Yu, Gao, Min-min, Wang, Yan-lan, Gong, Yu-bin, Zhang, and Chong-huai, Yan
- Subjects
Adult ,Male ,Manganese ,Infant, Newborn ,Environmental Exposure ,Fetal Blood ,Arsenic ,Zinc ,Lead ,Maternal Exposure ,Pregnancy ,Humans ,Female ,Cadmium - Abstract
Trace and toxic elements have great influences on the fetus growth during the pregnancy. The status of Pb, As, Cd, Mn and Zn in maternal and umbilical cord blood and influence factors were analyzed.From September 2006 to April 2007, 130 pairs of maternal blood and cord blood in total were collected at the time of spontaneous delivery or cesarean section. At the same time, the development of newborn was measured immediately. The concentrations of elements were determined by inductively coupled plasma mass spectrometry, the relationship of these elements between maternal and cord blood were also analyzed.The median (microg/L) concentration of blood Pb, As, Cd, Mn and Zn in maternal blood were 64.32, 3.81, 0.84, 54.26 and 6312.50. And the median (microg/L) of those elements in cord blood were 35.72, 2.84, 0.32, 78.99 and 2250. The levels of Cd (r=0.341, P=0.000) and As (r=0.552, P=0.000) in maternal blood were positively correlated with the elements in the cord blood. From the questionnaire we conclude that the occupational hazardous factors and room decorated were the risk factors for the blood As and Zn levels. After multilinear regression analysis we also found mother weight, occupational hazardous factors and mother systolic pressure might affect the levels of blood Mn, Zn, As and Cd.The levels of these elements were affected by environmental and maternal factors. In this study, although the levels of all heavy metals in pregnant women were below those considered hazardous, however, they were still higher than those in the developed countries. The effects of heavy metals of maternal exposure on developing fetuses should deserve attention further.
- Published
- 2009
27. Preoperative risk factor analysis in orthotopic liver transplant-ation with pretransplant artificial liver support therapy
- Author
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Zu-Fa Huang, Shai-hong Zhu, Hong Sun, Jin-Zhong Yuan, Ying-Zi Ming, Ling-Ling Zhao, Min-Min Wang, and Qifa Ye
- Subjects
Male ,medicine.medical_specialty ,Orthotopic liver transplantation ,medicine.medical_treatment ,Preoperative risk ,Treatment outcome ,Liver transplantation ,Text mining ,Artificial liver ,Risk Factors ,Medicine ,Humans ,Aged ,business.industry ,Graft Survival ,Gastroenterology ,Liver failure ,General Medicine ,Liver Failure, Acute ,Middle Aged ,Liver, Artificial ,Surgery ,Liver Transplantation ,surgical procedures, operative ,Treatment Outcome ,Graft survival ,Female ,business ,Factor Analysis, Statistical ,Rapid Communication ,Liver Failure - Abstract
To assess the value of pre-transplant artificial liver support in reducing the pre-operative risk factors relating to early mortality after orthotopic liver transplantation (OLT).Fifty adult patients with various stages and various etiologies undergoing OLT procedures were treated with molecular adsorbent recycling system (MARS) as preoperative liver support therapy. The study included two parts, the first one is to evaluate the medical effectiveness of single MARS treatment with some clinical and laboratory parameters, which were supposed to be the therapeutical pre-transplant risk factors, the second part is to study the patients undergoing OLT using the regression analysis on preoperative risk factors relating to early mortality (30 d) after OLT.In the 50 patients, the statistically significant improvement in the biochemical parameters was observed (pre-treatment and post-treatment). Eight patients avoided the scheduled Ltx due to significant relief of clinical condition or recovery of failing liver function, 8 patients died, 34 patients were successfully bridged to Ltx, the immediate outcome of this 34 patients within 30 d observation was: 28 kept alive and 6 patients died.Pre-operative SOFA, level of creatinine, INR, TNF-alpha, IL-10 are the main preoperative risk factors that cause early death after operation, MARS treatment before transplantation can relieve these factors significantly.
- Published
- 2006
28. Therapeutic application of molecular adsorbents recirculating system in various pathogenic MODS/MOF patients
- Author
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Hong-tao, Luo, Li-min, Guo, Min, Wu, Quan-mei, Liu, and Min-min, Wang
- Subjects
Adult ,Aged, 80 and over ,Male ,Adolescent ,Plasma Exchange ,Multiple Organ Failure ,Cytokines ,Humans ,Female ,Sorption Detoxification ,Middle Aged ,Nitric Oxide ,Aged - Published
- 2005
29. [Preoperation risk factor analysis in orthotopic liver transplantation with pre-transplant artificial liver support therapy]
- Author
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Jin-zhong, Yuan, Qi-fa, Ye, Ying-zi, Ming, Zu-fa, Hang, Ling-ling, Zhao, Xue-yi, Zhao, Min-min, Wang, Mao-zu, Zhang, Zhi-xiang, Wen, Shai-hong, Zhu, and Kun, Wu
- Subjects
Liver Cirrhosis ,Male ,Tumor Necrosis Factor-alpha ,Liver Neoplasms ,Middle Aged ,Liver, Artificial ,Interleukin-10 ,Liver Transplantation ,Treatment Outcome ,Risk Factors ,Preoperative Care ,Humans ,Female ,Factor Analysis, Statistical ,Aged - Abstract
Orthotopic liver transplantation (OLT) is an accepted therapy for selected patients with advanced liver diseases. However, the early mortality rate after OLT remains relatively high due to the poor selection of candidates with various serious conditions. The aim of this study is to assess the value of pretransplantation artificial liver support treatment in reducing the pre-operation risk factors relating to early mortality after OLT.50 adult patients in various stages of different etiologies who underwent OLT procedures had been treated with molecular adsorbent recycling system (MARS) preoperatively. The study was designed in two parts: the first one was to evaluate the effectiveness of a single MARS therapy by using some clinical and laboratory parameters which were supposed to be therapeutical pretransplantation risk factors. The second part was to study the patients undergoing OLT by using the regression analysis on preoperation risk factors relating to early (within 30 d after OLT) mortality rate.Among the 50 patients, a statistically significant improvement of the biochemical parameters was observed (pretreatment vs posttreatment). 8 patients cancelled their scheduled LTXs due to significant improvements in their clinical conditions or recovery of their failing liver functions. 8 patients died and 34 patients successfully underwent LTX. The immediate outcome (within 30 postoperative days) of these 34 patients was that 28 were kept alive and 6 died.Preoperation sequential organ failure assessment (SOFA), level of creatinine, INR, TNFalpha, and IL-10 are the main preoperative risk factors relating to early death after an operation. MARS treatment before a transplant operation can relieve these factors significantly, hence improve survival rate of liver transplantation or even make the transplantation unnecessary.
- Published
- 2005
30. [Therapeutic application of molecular adsorbent recirculation system in the treatment of multiple organ dysfunction syndrome patients]
- Author
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Hong-tao, Luo, Li-min, Guo, Quan-mei, Liu, Min, Wu, Hong-lian, Bai, Yue-hua, Luo, Pei-hua, Zhang, Zuan-di, Luo, and Min-min, Wang
- Subjects
Adult ,Aged, 80 and over ,Male ,Adolescent ,Multiple Organ Failure ,Middle Aged ,Nitric Oxide ,Liver, Artificial ,Young Adult ,Treatment Outcome ,Cytokines ,Humans ,Female ,Aged - Abstract
To assess the effectiveness of molecular adsorbent recirculation system (MARS) to remove nitric oxide(NO) and cytokines in multiple organ dysfunction syndrome(MODS) in patients with severe liver failure.Single MARS treatment were performed for 198 times with duration ranging from 6 to 24 hours on 61 MODS patients (42M/19F). The efficacy was evaluated by sequential organ failure assessment, biochemical parameters and the levels of pro-inflammatory cytokines.The MARS therapy resulted in a significant removal of NO and certain cytokines such as tumor necrosis factor-alpha(TNF-alpha), interleukin-2(IL-2), IL-6, IL-8, and lipopolysaccharide-binding protein(LBP), together with marked reduction of other non-water soluble albumin bound toxins and water soluble toxins. These were associated with an improvement of the patients' clinical conditions, including deranged hemodynamics, respiratory function, cardiovascular and renal functions, hepatic encephalopathy, thus resulting in a marked decrease of sequential organ failure assessment(SOFA) score and improved outcome. Twenty-five patients were able to be discharged from the hospital, and successful liver transplantation could be performed in 6 patients. The overall survival rate of 61 patients was 41.0%.MARS could be used for the treatment of MODS patients associated with elevated levels of NO and cytokines with satisfactory results.
- Published
- 2004
31. Artificial liver support molecular adsorbents recirculating system therapy as a bridge to re-transplantation in two cases of long anhepatic duration
- Author
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Yi-He, Liu, Yu, Wang, Li-Xin, Yu, Li-Ying, Sun, Bao-Lan, Feng, Zhong-Yang, Shen, and Min-Min, Wang
- Subjects
Adult ,Male ,Reoperation ,Time Factors ,Treatment Outcome ,Humans ,Middle Aged ,Liver, Artificial ,Liver Failure ,Liver Transplantation - Abstract
Molecular adsorbents recirculating system (MARS) liver support therapy is the development of albumin dialysis. This study was to assess the successful application of MARS artificial liver support therapy as a bridge to re-transplantation in two cases of long anhepatic duration.MARS therapy was given after failure plasma-exchange (PE) treatment, which resulted in circulatory derangement and acute renal dysfunction in a 36-year-old male patient. Finally his uncontrolled anhepatic condition led to a successful re-transplantation. In another 48-year-old man who was diagnosed as having primary nonfunction (PNF) during the liver transplantation, 10-hour MARS treatment contributed to smooth bridging of his anhepatic phase.The two anhepatic patients were bridged for 26 and 17 hours respectively to re-transplantation with MARS therapy.Our experience proves that MARS artificial liver can be an effective support for long time bridging PNF until re-transplantation is available.
- Published
- 2004
32. Clinical experience with molecular adsorbent recirculating system (MARS) in patients with drug-induced liver failure
- Author
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Min-min Wang, Kaichun Wu, Ji-yan Miao, Li Xu, Yan Yang, Daiming Fan, Ling Zhao, Jie Ding, Xin Wang, and Xin-min Zhou
- Subjects
Drug ,Adult ,Male ,medicine.medical_specialty ,Bilirubin ,medicine.drug_class ,media_common.quotation_subject ,Encephalopathy ,Antibiotics ,Biomedical Engineering ,Medicine (miscellaneous) ,Bioengineering ,Gastroenterology ,Biomaterials ,chemistry.chemical_compound ,Liver Function Tests ,Internal medicine ,medicine ,Humans ,Survival rate ,media_common ,Aged ,Aged, 80 and over ,medicine.diagnostic_test ,business.industry ,General Medicine ,Middle Aged ,medicine.disease ,Liver, Artificial ,Surgery ,Clinical trial ,Survival Rate ,Stenosis ,Treatment Outcome ,chemistry ,Female ,business ,Liver function tests ,Liver Failure - Abstract
The molecular adsorbent recirculating system (MARS) is a novel extracorporeal technique for liver support. We report the clinical results in a group of fourteen patients with drug-induced liver failure. Fourteen patients, aged 22-83 years, with acute or subacute liver failure [mean Child-Turcotte-Pugh (CTP) score 11 (range 8-15)] due to the intake of various drugs (diet pill overdose-2; Chinese traditional medicine (CTM)-4; antibiotic, paracetamol, tuberculostatic, or vasodilator abuse-8) were treated with one to seven sessions of MARS. Beneficial effects such as the improvement of encephalopathy and prothrombin activity, as well as a reduction of bilirubin and ammonia were recorded during MARS treatments. Thirteen out of fourteen patients survived the hospitalization (93%), and two of the discharged patients died during the follow-up of 6-12 months. The overall survival rate was about 79%. MARS therapy can contribute to the improved treatment of drug-induced liver failure patients.
- Published
- 2004
33. Molecular adsorbent recirculating system in dealing with maternal Amanita poisoning during the second pregnancy trimester: a case report
- Author
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Bang-Fu, Wu and Min-Min, Wang
- Subjects
Adult ,Plasma Exchange ,Amanita ,Pregnancy Outcome ,Mushroom Poisoning ,Combined Modality Therapy ,Risk Assessment ,Severity of Illness Index ,Hemoperfusion ,Pregnancy Complications ,Treatment Outcome ,Pregnancy ,Renal Dialysis ,Pregnancy Trimester, Second ,Humans ,Female ,Sorption Detoxification ,Follow-Up Studies - Abstract
A 27-year-old woman in her 20th week of pregnancy was hospitalized because of food poisoning caused by Amanita phalloides.Previously extracorporeal purification treatments with 2 times of hemodialysis plus hemoperfusion and a high volume therapeutic plasma exchange (PE) in addition to intensive medication during the first 8 days failed to improve hepatic encephalopathy (HE) and liver function but developed deep coma with severe blood chemistry and signs of threatened abortion.Treatments with intermittent molecular adsorbent recirculating system (MARS) for 3 times resulted in an immediate improvement of liver function and clinical symptoms including HE and threatened abortion until her fully recovery. When the life-threatening maternal illness was cured gestation went on until premature birth at the 36th week of pregnancy, and the infant underwent an undisturbed development.MARS method appears to be an optimal therapy for patients with acute liver failure secondary to cytoxic mushroom poisoning during pregnancy.
- Published
- 2004
34. [Improvement of molecular adsorbent recirculating system on chronic severe hepatitis patients with multiple organ failure]
- Author
-
Xiao-bing, Hu, Zhan, Yang, Xiao-ping, Tang, Min-min, Wang, Ying, Zhou, and Shu-ping, Li
- Subjects
Adult ,Male ,Hepatitis B, Chronic ,Hepatic Encephalopathy ,Multiple Organ Failure ,Humans ,Female ,Sorption Detoxification ,Liver Failure, Acute ,Middle Aged ,Prognosis ,Liver, Artificial - Published
- 2003
35. Application of Molecular Adsorbents Recirculating System to remove NO and cytokines in severe liver failure patients with multiple organ dysfunction syndrome
- Author
-
Li-Min, Guo, Jing-Yuan, Liu, Dao-Zhen, Xu, Bao-Shun, Li, Hao, Han, Ling-Hang, Wang, Wei-Yan, Zhang, Lian-He, Lu, Xia, Guo, Feng-Xia, Sun, Hong-Yu, Zhang, Xiao-Dong, Liu, Jian-Ping, Zhang, Yun, Yao, Zhong-Ping, He, and Min-Min, Wang
- Subjects
Adult ,Aged, 80 and over ,Male ,Adolescent ,Interleukin-6 ,Tumor Necrosis Factor-alpha ,Multiple Organ Failure ,Interleukin-8 ,Nitrous Oxide ,Liver Failure, Acute ,Middle Aged ,Severity of Illness Index ,Interferon-gamma ,Renal Dialysis ,Cytokines ,Humans ,Female ,Sorption Detoxification ,Aged ,Toxins, Biological - Abstract
Molecular Adsorbents Recirculating System (MARS) is a new promising artificial liver support therapy, the aim of this study was to assess the effectiveness of MARS to remove nitrous oxide (NO) and cytokines in severe liver failure patients with multiple organ dysfunction syndrome (MODS).Sixty single MARS treatments were performed with length of 6-24 h on 24 severe liver failure patients (18 males/6 females) with MODS.The MARS therapy was associated with a significant removal of NO and certain cytokines such as TNF-alpha, IL-6, IL-8, and INF-gamma, together with marked reduction of other non-water-soluble albumin bound toxins and water-soluble toxins, these were associated with a improvement of the patients' clinical conditions including hepatic encephalopathy, deranged hemodynamic situation and as well as renal and respiratory function, thus resulted into marked decrease of Sequential Organ Failure Assessment (SOFA) score and improved outcome: nine patients were able to be discharged from the hospital or bridged to successful liver transplantation, the overall survival of 24 patients was 37.5%.We can confirm the positive therapeutic impact and safety to use MARS on liver failure patients with MODS associated with elevated levels of NO and cytokines.
- Published
- 2003
36. Case report of the first Severe Acute Respiratory Syndrome patient in China: successful application of extracorporeal liver support MARS therapy in multiorgan failure possibly induced by Severe Acute Respiratory Syndrome
- Author
-
Min Wu, Min-Min Wang, and Hong-tao Luo
- Subjects
Male ,medicine.medical_specialty ,China ,medicine.medical_treatment ,Multiple Organ Failure ,Biomedical Engineering ,Medicine (miscellaneous) ,Bioengineering ,Severe Acute Respiratory Syndrome ,Extracorporeal ,Biomaterials ,medicine ,Humans ,Respiratory system ,Intensive care medicine ,Dialysis ,Kidney ,business.industry ,General Medicine ,Liver Failure, Acute ,Middle Aged ,medicine.disease ,Systemic inflammatory response syndrome ,medicine.anatomical_structure ,Respiratory failure ,Atypical pneumonia ,Anesthesia ,Etiology ,Sorption Detoxification ,business - Abstract
A previously healthy patient was transferred to our infectious department with a 9-day-history of continued fever. The patient was placed on assisted respiration support in addition to anti-viral medication. The diagnosis of SARS (Severe Acute Respiratory Syndrome) was made in view of the severe hypoxemia and the characteristic symptoms exhibited by the patient. Despite the best intensive therapy, he clinically deteriorated into multiorgan dysfunction syndrome (MODS) including additional dysfunction of kidney, liver, and heart. We initiated MARS therapy (extracorporeal liver support utilizing albumin dialysis) with intention to positively influence the organ functions in his MODS on the basis of recently published studies which suggested a positive impact of MARS in multiorgan failure secondary to respiratory illnesses and the possible influence on inflammatory mediators and cytokines. The application of 4 intermittent MARS treatments (8 h each, mean blood flow rate 180 ml/min) on 4 consecutive days resulted in an immediate improvement of clinical conditions within the treatment days. The further improvement of organ functions allowed withdrawing the patient from ventilatory support 13 days after start of MARS, and 44 days after admission he was discharged home with completely resolved organ functions and laboratory abnormalities. SARS is a severe form of the epidemic outbreak of atypical pneumonia which remains poorly defined regarding etiology and special therapy recommendations. However, the development and aggravation of this ARDS-like severe acute respiratory syndrome is pathologically associated with the systemic inflammatory response syndrome (SIRS) which may then mediate or cause MODS. To our knowledge, this is the first report of an application of MARS therapy in MODS which was probably induced by SARS in a patient in China which improved the clinical condition of the patient in multi-organ failure secondary to respiratory failure indicating that MARS might be an additional therapeutic option in multiorgan failure induced by SARS.
- Published
- 2003
37. [The treatment of molecular adsorbents recirculating system artificial liver in severe liver failure patients with multiple organ dysfunction syndrome]
- Author
-
Li-min, Guo, Jing-yuan, Liu, Dao-zhen, Xu, Bao-shun, Li, Hao, Han, Ling-hang, Wang, Wei-yan, Zhang, Lian-he, Lu, Xia, Guo, Feng-xia, Sun, Hong-yu, Zhang, Xiao-dong, Liu, Jian-ping, Zhang, Jun, Yao, Zhong-ping, He, and Min-min, Wang
- Subjects
Adult ,Aged, 80 and over ,Male ,Adolescent ,Interleukin-6 ,Tumor Necrosis Factor-alpha ,Multiple Organ Failure ,Interleukin-8 ,Liver Failure, Acute ,Middle Aged ,Nitric Oxide ,Liver, Artificial ,Interferon-gamma ,Bioreactors ,Humans ,Female ,Sorption Detoxification ,Aged - Abstract
To evaluate the effectiveness and mechanisms of molecular adsorbents recirculating system (MARS) treatment in severe liver failure patients with multiple organ dysfunction syndrome (MODS).60 single MARS treatments were performed for 6 - 24 hours on 24 severe liver failure patients with MODS.MARS therapy was associated with marked reduction of albumin bound toxins and water soluble toxins, together with a significant removal of NO and certain cytokines, such as TNF-alpha, IL-6, IL-8, and INF-gamma. These were associated with a improvement of the patients' clinical conditions including hepatic encephalopathy, deranged hemodynamic situation, as well as renal and respiratory function, thus resulted into marked decrease of sequential organ failure assessment (SOFA) score (from 9.72+-1.89 to 6.98+-2.34), and improving outcome: 9 patients were able to be discharged from the hospital or bridged to successful liver transplantation. The overall survival rate of 24 patients was 37.5%.There is positive therapeutic impact and safety to use MARS on liver failure patients with MODS. The effectiveness of MARS is correlated with reducing the levels of NO and cytokines, except for completely removing of accumulated toxins in liver failure patients.
- Published
- 2003
38. Application of molecular adsorbent recirculating system (MARS) in severe viral hepatitis patients and the prognosis assessment by MELD score
- Author
-
Gui-xia Yan, Li-hua Sun, Min-min Wang, Yue-xin Zhang, Xiao-bo Lu, and Ling Xu
- Subjects
business.industry ,Gastroenterology ,medicine ,Surgery ,Mars Exploration Program ,Viral hepatitis ,medicine.disease ,business ,Virology - Published
- 2005
39. Therapeutic application of molecular adsorbents recirculating system (MARS) in chronic severe hepatitis patients complicated with multiorgan failure
- Author
-
Min-min Wang, Yan-qin Zhao, Xiao-bing Hu, Ying Zhou, Min-ru He, and Ming-er Liao
- Subjects
medicine.medical_specialty ,business.industry ,Gastroenterology ,medicine ,Surgery ,Mars Exploration Program ,Intensive care medicine ,business ,Multiorgan failure ,Hepatitis a virus - Published
- 2005
40. [Untitled]
- Author
-
Min-min Wang, L Guo, Yang Yang, Qifa Ye, Sharon C.-A. Chen, and X Zhou
- Subjects
medicine.medical_specialty ,business.industry ,medicine ,Liver failure ,virus diseases ,Hepatitis B ,Critical Care and Intensive Care Medicine ,Intensive care medicine ,business ,medicine.disease ,digestive system diseases - Abstract
Liver failure resulting from hepatitis B (HBV) represents difficult-to-treat conditions. Molecular Adsorbents Recirculating System (MARS) liver support is a novel therapy, but few data on patients of HBV are available.
- Published
- 2004
41. 426 Clinical investigation of using molecular adsorbent recirculating system(MARS) in perioperative period with liver transplantation
- Author
-
Sai-Hong Zhu, Bo Shao, Yin-Zi Ming, Zu-Fa Huang, Kun Wu, Jin-Zhong Yuan, Min-Min Wang, and Qi-Fa Ye
- Subjects
medicine.medical_specialty ,Hepatology ,business.industry ,Clinical investigation ,medicine.medical_treatment ,Medicine ,Mars Exploration Program ,Perioperative ,Liver transplantation ,business ,Surgery - Published
- 2003
42. 1182 Improvement of multiple organ functions in chronic severe viral hepatitis B with the molecular adsorbent recirculating system and it's prognosis assessment by MELD score
- Author
-
Min-Min Wang, Li-Rong Wang, Ning Zhang, Ping Huang, Yi-Jun Yang, Xiao-dong Gai, and Gui-Xia Meng
- Subjects
medicine.medical_specialty ,Hepatology ,business.industry ,Internal medicine ,Immunology ,medicine ,Viral hepatitis b ,business ,Gastroenterology - Published
- 2003
43. Clinical Experience with Molecular Adsorbent Recirculating System (MARS) in Patients with Drug-induced Liver Failure.
- Author
-
Xin-min Zhou, Ji-yan Miao, Yan Yang, Ling Zhao, Xin Wang, Li Xu, Jie Ding, Kai-chun Wu, Dai-ming Fan, and Min-min Wang
- Subjects
LIVER failure ,ARTIFICIAL blood circulation ,ARTIFICIAL livers ,DRUG side effects ,ANTITUBERCULAR agents ,BILIRUBIN - Abstract
The molecular adsorbent recirculating system (MARS) is a novel extracorporeal technique for liver support. We report the clinical results in a group of fourteen patients with drug-induced liver failure. Fourteen patients, aged 22-83 years, with acute or subacute liver failure [mean Child--Turcotte--Pugh (CTP) score 11 (range 8-15)] due to the intake of various drugs (diet pill overdose--2; Chinese traditional medicine (CTM)--4; antibiotic, paracetamol, tuberculostatic, or vasodilator abuse--8) were treated with one to seven sessions of MARS. Beneficial effects such as the improvement of encephalopathy and prothrombin activity, as well as a reduction of bilirubin and ammonia were recorded during MARS treatments. Thirteen out of fourteen patients survived the hospitalization (93%), and two of the discharged patients died during the follow-up of 6-12 months. The overall survival rate was about 79%. MARS therapy can contribute to the improved treatment of drug-induced liver failure patients. [ABSTRACT FROM AUTHOR]
- Published
- 2004
- Full Text
- View/download PDF
44. Use of Near-Infrared Spectroscopy to Monitor Regional Cerebral Oxygen Saturation during Infrarenal Aortic Crossclamping in Piglets.
- Author
-
Hong-Tao Luo, Min Wu, and Min-Min Wang
- Subjects
INFRARED spectroscopy ,CEREBRAL circulation ,PIGLETS ,BLOOD circulation - Abstract
Purpose: The hemodynamic changes induced by infrarenal aortic crossclamping have been well documented, but the effects of such crossclamping on cerebral perfusion are unknown. To investigate these effects, we used near-infrared spectroscopy (NIRS) to monitor regional cerebral oxygen saturation (rSO[sub 2] ) during infrarenal aortic crossclamping in a piglet model. Methods: The study involved 19 piglets, each weighing 7.8 ± 1 kg. The NIRS sensor was placed on each animal's forehead. General anesthesia was induced, and the infrarenal abdominal aorta was mobilized through a laparotomy. After heparin (1 mg/kg) was administered, crossclamps were applied proximally and distally. A 2 mm segment was resected from the proximal aortic stump, and an aorto-aortic anastomosis was performed. Results: Crossclamping lasted for 30.6 ± 6.7 min. Between the time of baseline measurement and clamp application, the rSO[sub 2] did not decrease significantly (65.4%± 8.9% vs. 62.4%± 7.8%). However, significant decreases in the rSO[sub 2] occurred between baseline measurement and clamp removal (65.4%± 8.9% vs. 55.7%± 8.9%; P < 0.01), between baseline measurement and the end of surgery (65.4%± 8.9% vs. 57.7%± 7.5%; P < 0.01), and between clamp application and removal (62.4%± 7.8% vs. 55.7%± 8.9%; P < 0.01). At these same intervals, no intergroup differences occurred in the temperature, heart rate, or mean arterial pressure. Conclusion: Infrarenal aortic crossclamping significantly decreases the rSO[sub 2] . NIRS, which has the advantages of being non- invasive and continuous, may be useful for monitoring this variable intraoperatively. [ABSTRACT FROM AUTHOR]
- Published
- 2003
- Full Text
- View/download PDF
45. Synthesis and characterization of carboxymethyl cellulose/organic montmorillonite nanocomposites and its adsorption behavior for Congo Red dye
- Author
-
Min-min Wang and Li Wang
- Subjects
lcsh:TC401-506 ,carboxymethyl cellulose ,nanocomposite ,adsorption ,organic montmorillonite ,lcsh:River, lake, and water-supply engineering (General) ,Congo Red dye - Abstract
A series of carboxymethyl cellulose/organic montmorillonite (CMC/OMMT) nanocomposites with different weight ratios of carboxymethyl cellulose (CMC) to organic montmorillonite (OMMT) were synthesized under different conditions. The nanocomposites were characterized by the Fourier transform infrared (FT-IR) spectrophotometer, X-ray diffraction (XRD) method, transmission electron microscope (TEM), scanning electron microscope (SEM), and thermal gravimetric (TG) analysis. The results showed that the introduction of CMC may have different influences on the physico-chemical properties of OMMT and intercalated-exfoliated nanostructures were formed in the nanocomposites. The effects of different reaction conditions on the adsorption capacity of samples for Congo Red (CR) dye were investigated by controlling the amount of hexadecyl trimethyl ammonium bromide (CTAB), the weight ratio of CMC to OMMT, the reaction time, and the reaction temperature. Results from the adsorption experiment showed that the adsorption capacity of the nanocomposites can reach 171.37 mg/g, with the amount of CTAB being 1.0 cation exchange capacity (CEC) of MMT, the weight ratio of CMC to OMMT being 1:1, the reaction time being 6 h, and the reaction temperature being 60°C. The CMC/OMMT nanocomposite can be used as a potential adsorbent to remove CR dye from an aqueous solution.
- Full Text
- View/download PDF
46. Case Report of the First Severe Acute Respiratory Syndrome Patient in China: Successful Application of Extracorporeal Liver Support MARS Therapy in Multiorgan Failure Possibly Induced by Severe Acute Respiratory Syndrome.
- Author
-
Hong-Tao Luo, Min Wu, and Min-Min Wang
- Subjects
ADULT respiratory distress syndrome ,MULTIPLE organ failure ,CASE studies - Abstract
A previously healthy patient was transferred to our infectious department with a 9-day-history of continued fever. The patient was placed on assisted respiration support in addition to anti-viral medication. The diagnosis of SARS (Severe Acute Respiratory Syndrome) was made in view of the severe hypoxemia and the characteristic symptoms exhibited by the patient. Despite the best intensive therapy, he clinically deteriorated into multiorgan dysfunction syndrome (MODS) including additional dysfunction of kidney, liver, and heart. We initiated MARS therapy (extracorporeal liver support utilizing albumin dialysis) with intention to positively influence the organ functions in his MODS on the basis of recently published studies which suggested a positive impact of MARS in multiorgan failure secondary to respiratory illnesses and the possible influence on inflammatory mediators and cytokines. The application of 4 intermittent MARS treatments (8 h each, mean blood flow rate 180 ml/min) on 4 consecutive days resulted in an immediate improvement of clinical conditions within the treatment days. The further improvement of organ functions allowed withdrawing the patient from ventilatory support 13 days after start of MARS, and 44 days after admission he was discharged home with completely resolved organ functions and laboratory abnormalities. SARS is a severe form of the epidemic outbreak of atypical pneumonia which remains poorly defined regarding etiology and special therapy recommendations. However, the development and aggravation of this ARDS-like severe acute respiratory syndrome is pathologically associated with the systemic inflammatory response syndrome (SIRS) which may then mediate or cause MODS. To our knowledge, this is the first report of an application of MARS therapy in MODS which was probably induced by SARS in a patient in China which improved the clinical condition of the patient in multi-organ failure secondary to respiratory failure indicating that MARS might be an additional therapeutic option in multiorgan failure induced by SARS. [ABSTRACT FROM AUTHOR]
- Published
- 2003
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