1
|
Diao Z, Molludi J, Latef Fateh H, Moradi S. Comparison of the low-calorie DASH diet and a low-calorie diet on serum TMAO concentrations and gut microbiota composition of adults with overweight/obesity: a randomized control trial. Int J Food Sci Nutr 2024; 75:207-220. [PMID: 38149315 DOI: 10.1080/09637486.2023.2294685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 12/09/2023] [Indexed: 12/28/2023]
Abstract
This study compares two diets, Dietary Approaches to Stop Hypertension (DASH) and a Low-Calorie Diet on Trimethylamine N-oxide (TMAO) levels and gut microbiota. 120 obese adults were randomly allocated to these three groups: a low-calorie DASH diet, a Low-Calorie diet, or a control group for 12 weeks. Outcomes included plasma TMAO, lipopolysaccharides (LPS), and gut microbiota profiles. After the intervention, the low-calorie DASH diet group demonstrated a greater decrease in TMAO levels (-20 ± 8.1 vs. -10.63 ± 4.6 μM) and a significant decrease in LPS concentration (-19.76 ± 4.2 vs. -5.68 ± 2.3) compared to the low-calorie diet group. Furthermore, the low-calorie DASH diet showed a higher decrease in the Firmicutes and Bactericides (F/B) ratio, which influenced TMAO levels, compared to the Low-Calorie diet (p = 0.028). The current study found the low-calorie DASH diet improves TMAO and LPS in comparison to a Low-Calorie diet.
Collapse
Affiliation(s)
- Zhipeng Diao
- Tianjin Yite Life Science R&D Co. LTD, Tianjin, China
| | - Jalall Molludi
- Research Center for Environmental Determinants of Health (RCEDH), Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Hawal Latef Fateh
- Nursing Department, Kalar Technical College, Sulaimani Polytechnic University, Sulaymaniyah, Iraq
- Nursing Department, Kalar Technical College, Garmian Polytechnic University, Kalar, Iraq
| | - Sara Moradi
- Research Center for Environmental Determinants of Health (RCEDH), Kermanshah University of Medical Sciences, Kermanshah, Iran
| |
Collapse
|
2
|
Diao Z, Yu H, Wu Y, Sun Y, Tang H, Wang M, Li N, Ge H, Sun J, Gu HF. Identification of the main flavonoids of Abelmoschus manihot (L.) medik and their metabolites in the treatment of diabetic nephropathy. Front Pharmacol 2024; 14:1290868. [PMID: 38313075 PMCID: PMC10836608 DOI: 10.3389/fphar.2023.1290868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 12/19/2023] [Indexed: 02/06/2024] Open
Abstract
Introduction: Huangkui capsule (HKC) is made from the ethanol extract of Abelmoschus manihot (L.) Medik [Malvaceae; abelmoschi corolla] and received approval from the China Food and Drug Administration (Z19990040) in 1999. Currently, HKC is used for treatment of the patients with diabetic nephropathy (DN) in China. The bioactive chemical constituents in HKC are total flavonoids of A. manihot (L.) Medik (TFA). The present study aims to identify the primary flavonoid metabolites in HKC and TFA and their metabolism fates in db/db mice, the animal model for the study of type 2 diabetes and DN. Methods: HKC (0.84 g/kg/d) and TFA (0.076 g/kg/d) or vehicle were respectively administered daily via oral gavage in db/db mice for 4 weeks. The metabolism fate of the main metabolites of HKC in serum, liver, kidney, heart, jejunum, colon, jejunal contents, colonic contents, and urine of db/db mice were analyzed with a comprehensive metabolite identification strategy. Results and Discussion: In db/db mice administered with HKC and TFA, 7 flavonoid prototypes and 38 metabolites were identified. The related metabolic pathways at Phases I and II reactions included dehydroxylation, deglycosylation, hydrogenation, methylation, glucuronidation, sulphation, and corresponding recombined reactions. Quercetin, isorhamnetin, quercetin sulphate, quercetin monoglucuronide, and isorhamnetin monoglucuronide presented a high exposure in the serum and kidney of db/db mice. Thereby, the present study provides a pharmacodynamic substance basis for better understanding the mechanism of A. manihot (L.) Medik for medication of DN.
Collapse
Affiliation(s)
- Zhipeng Diao
- Jiangsu Provincial Key Laboratory of Drug Metabolism and Pharmacokinetics, Research Unit of PK-PD Based Bioactive Components and Pharmacodynamic Target Discovery of Natural Medicine of Chinese Academy of Medical Sciences, China Pharmaceutical University, Nanjing, China
| | - Hongmei Yu
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yapeng Wu
- Jiangsu Provincial Key Laboratory of Drug Metabolism and Pharmacokinetics, Research Unit of PK-PD Based Bioactive Components and Pharmacodynamic Target Discovery of Natural Medicine of Chinese Academy of Medical Sciences, China Pharmaceutical University, Nanjing, China
| | - Yuanbo Sun
- Jiangsu Provincial Key Laboratory of Drug Metabolism and Pharmacokinetics, Research Unit of PK-PD Based Bioactive Components and Pharmacodynamic Target Discovery of Natural Medicine of Chinese Academy of Medical Sciences, China Pharmaceutical University, Nanjing, China
| | - Haitao Tang
- Suzhong Pharmaceutical Research Institute, Nanjing, China
| | - Mei Wang
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
- Suzhong Pharmaceutical Research Institute, Nanjing, China
| | - Nan Li
- Department of Endocrinology, Jiangsu Province Hospital of Chinese Medicine, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Haitao Ge
- Suzhong Pharmaceutical Research Institute, Nanjing, China
| | - Jianguo Sun
- Jiangsu Provincial Key Laboratory of Drug Metabolism and Pharmacokinetics, Research Unit of PK-PD Based Bioactive Components and Pharmacodynamic Target Discovery of Natural Medicine of Chinese Academy of Medical Sciences, China Pharmaceutical University, Nanjing, China
| | - Harvest F Gu
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| |
Collapse
|
3
|
Chu H, Zhang W, Tan Y, Diao Z, Li P, Wu Y, Xie L, Sun J, Yang K, Li P, Xie C, Li P, Hua Q, Xu X. Qing-Zhi-Tiao-Gan-Tang (QZTGT) prevents nonalcoholic steatohepatitis (NASH) by expression pattern correction. J Ethnopharmacol 2023; 317:116665. [PMID: 37279813 DOI: 10.1016/j.jep.2023.116665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 05/12/2023] [Accepted: 05/18/2023] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Qing-Zhi-Tiao-Gan-Tang or Qing-Zhi-Tiao-Gan Decoction (QZTGT) is based on the compatibility theory of traditional Chinese medicine (TCM), that is a combination of three classical formulae for the treatment of nonalcoholic fatty liver disease (NAFLD). Its pharmacodynamic material basis is made up of quinones, flavanones, and terpenoids. AIM OF THE STUDY This study aimed to look for a promising recipe for treating nonalcoholic steatohepatitis (NASH), a more advanced form of NAFLD, and to use a transcriptome-based multi-scale network pharmacological platform (TMNP) to find its therapy targets. MATERIALS AND METHODS A classical dietary model of NASH was established using MCD (Methionine- and choline-deficient) diet-fed mice. Liver coefficients like ALT, AST, serum TC, and TG levels were tested following QZTGT administration. A transcriptome-based multi-scale network pharmacological platform (TMNP) was used to further analyze the liver gene expression profile. RESULTS The composition of QZTGT was analyzed by HPLC-Q-TOF/MS, a total of 89 compounds were separated and detected and 31 of them were found in rat plasma. QZTGT improved liver morphology, inflammation and fibrosis in a classical NASH model. Transcriptomic analysis of liver samples from NASH animal model revealed that QZTGT was able to correct gene expression. We used transcriptome-based multi-scale network pharmacological platform (TMNP) to predicted molecular pathways regulated by QZTGT to improve NASH. Further validation indicated that "fatty acid degradation", "bile secretion" and "steroid biosynthesis" pathways were involved in the improvement of NASH phenotype by QZTGT. CONCLUSIONS Using HPLC-Q-TOF/MS, the compound composition of QZTGT, a Traditional Chinese prescription, was separated, analyzed and identified systematically. QZTGT mitigated NASH symptoms in a classical dietary model of NASH. Transcriptomic and network pharmacology analysis predicted the potential QZTGT regulated pathways. These pathways could be used as therapeutic targets for NASH.
Collapse
Affiliation(s)
- Hang Chu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 210009, Nanjing, Jiangsu, China
| | - Weitao Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 210009, Nanjing, Jiangsu, China
| | - Yan Tan
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Zhipeng Diao
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 210009, Nanjing, Jiangsu, China
| | - Peng Li
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Yapeng Wu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 210009, Nanjing, Jiangsu, China
| | - Like Xie
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 210009, Nanjing, Jiangsu, China
| | - Jianguo Sun
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 210009, Nanjing, Jiangsu, China
| | - Ke Yang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Pingping Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China; Diabetes Research Center of Chinese Academy of Medical Sciences, Beijing, 100050, China
| | - Cen Xie
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, PR China
| | - Ping Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 210009, Nanjing, Jiangsu, China
| | - Qian Hua
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, 100029, China.
| | - Xiaojun Xu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 210009, Nanjing, Jiangsu, China.
| |
Collapse
|
4
|
Li R, Wang Q, Liu Z, Xie L, Diao Z, Peng Y, Wang G, Sun J. Dose-dependent pharmacokinetics of midazolam in rats: influence of hepatic first-pass metabolism. Xenobiotica 2023:1-9. [PMID: 37042732 DOI: 10.1080/00498254.2023.2200524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
Abstract
1. To characterize the dose-dependent pharmacokinetics of midazolam and evaluate the intestinal and hepatic first-pass effects on midazolam in Sprague-Dawley rats, the concentrations and area under the concentration-time curve (AUC) of midazolam in the portal and systemic plasma were simultaneously determined with a double cannulation method.2. It was found that about 75% of the dose was left in the portal blood with different oral administration doses, while the bioavailability in the liver was 37.86% at 20 mg/kg, significantly higher than 9.16% at 2 mg/kg.3. The disproportional increase in AUC of midazolam and significant decrease in exposure of metabolites were observed in systemic plasma after hepatic portal vein administration. And in the in vitro study, the formation rate of the metabolites of midazolam significantly decreased when midazolam was at 300 μM compared with 100 μM.4. These results indicated that not only the saturation of first-pass metabolism but also the inhibition of hepatic metabolism is responsible for the nonlinear PK of midazolam. Thus, a rational dose should be chosen when midazolam is used as a probe in the drug-drug interaction study, particularly for orally administered drugs that undergo hepatic first-pass metabolism.
Collapse
Affiliation(s)
- Run Li
- Key Lab of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, China
| | - Qingqing Wang
- Key Lab of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, China
| | - Zihou Liu
- Key Lab of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, China
| | - Like Xie
- Key Lab of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, China
| | - Zhipeng Diao
- Key Lab of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, China
| | - Ying Peng
- Key Lab of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, China
| | - Guangji Wang
- Key Lab of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, China
| | - Jianguo Sun
- Key Lab of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, China
| |
Collapse
|
5
|
Xie L, Diao Z, Xia J, Zhang J, Xu Y, Wu Y, Liu Z, Jiang C, Peng Y, Song Z, Wang G, Zhu J, Sun J. Comprehensive Evaluation of Metabolism and the Contribution of the Hepatic First-Pass Effect in the Bioavailability of Glabridin in Rats. J Agric Food Chem 2023; 71:1944-1956. [PMID: 36649475 DOI: 10.1021/acs.jafc.2c06460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Glabridin is a bioactive isoflavan, which has a wide range of biological properties and is widely used in the market of health products and dietary supplements. However, the transformation pathway of glabridin in vivo is unclear, and the bioavailability is controversial among different studies. Therefore, a new HPLC-Q-TOF method was developed to analyze and identify the prototype and metabolites of glabridin in rats. A total of 63 compounds were identified, including hydroxylation, demethylation, acetylation, demethylation to carboxylation, glucuronidation, and sulfate conjugation, and 43 of which were new metabolites that had not been reported. Additionally, our study verified that the oral bioavailability of glabridin was 6.63 ± 2.29% in rats. Furthermore, we found that the hepatic first-pass effect was 62.12 ± 15.7% for glabridin. These results indicated that a high hepatic first-pass effect and extensive metabolism of glabridin in vivo may lead to its limited oral bioavailability.
Collapse
Affiliation(s)
- Like Xie
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu210009, China
| | - Zhipeng Diao
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu210009, China
| | - Jing Xia
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu210009, China
| | - Jing Zhang
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu210009, China
| | - Yao Xu
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu210009, China
| | - Yapeng Wu
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu210009, China
| | - Zihou Liu
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu210009, China
| | - Chengwen Jiang
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu210009, China
| | - Ying Peng
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu210009, China
| | - Zhe Song
- Instrumental Analysis Center, China Pharmaceutical University, Nanjing, Jiangsu210009, China
| | - Guangji Wang
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu210009, China
| | - Junrong Zhu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu210009, China
- Department of Pharmacy, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu210009, China
| | - Jianguo Sun
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu210009, China
| |
Collapse
|
6
|
Cai L, Li H, Guo J, Zhao W, Li Y, Duan Y, Hou X, Cheng L, Du H, Shao X, Diao Z, Hao Y, Li C. 176P Effect of adjuvant lenvatinib (LEN) on tumour recurrence in patients with hepatocellular carcinoma (HCC) and high residual alpha-fetoprotein (AFP) following resection or ablation: A single-center, retrospective study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
|
7
|
Willa K, Diao Z, Campanini D, Welp U, Divan R, Hudl M, Islam Z, Kwok WK, Rydh A. Nanocalorimeter platform for in situ specific heat measurements and x-ray diffraction at low temperature. Rev Sci Instrum 2017; 88:125108. [PMID: 29289216 DOI: 10.1063/1.5016592] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Recent advances in electronics and nanofabrication have enabled membrane-based nanocalorimetry for measurements of the specific heat of microgram-sized samples. We have integrated a nanocalorimeter platform into a 4.5 T split-pair vertical-field magnet to allow for the simultaneous measurement of the specific heat and x-ray scattering in magnetic fields and at temperatures as low as 4 K. This multi-modal approach empowers researchers to directly correlate scattering experiments with insights from thermodynamic properties including structural, electronic, orbital, and magnetic phase transitions. The use of a nanocalorimeter sample platform enables numerous technical advantages: precise measurement and control of the sample temperature, quantification of beam heating effects, fast and precise positioning of the sample in the x-ray beam, and fast acquisition of x-ray scans over a wide temperature range without the need for time-consuming re-centering and re-alignment. Furthermore, on an YBa2Cu3O7-δ crystal and a copper foil, we demonstrate a novel approach to x-ray absorption spectroscopy by monitoring the change in sample temperature as a function of incident photon energy. Finally, we illustrate the new insights that can be gained from in situ structural and thermodynamic measurements by investigating the superheated state occurring at the first-order magneto-elastic phase transition of Fe2P, a material that is of interest for magnetocaloric applications.
Collapse
Affiliation(s)
- K Willa
- Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, USA
| | - Z Diao
- Department of Physics, Stockholm University, SE-106 91 Stockholm, Sweden
| | - D Campanini
- Department of Physics, Stockholm University, SE-106 91 Stockholm, Sweden
| | - U Welp
- Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, USA
| | - R Divan
- Center for Nanoscale Materials, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, USA
| | - M Hudl
- Department of Physics, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Z Islam
- X-ray Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, USA
| | - W-K Kwok
- Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, USA
| | - A Rydh
- Department of Physics, Stockholm University, SE-106 91 Stockholm, Sweden
| |
Collapse
|
8
|
Abstract
So far, all previous attempts to apply nanostructures for perfect transmission have not achieved maximum transmittance beyond 99.5% due to the limited regularity of the nanoscale surface geometry: too low for many high-end applications. Here we demonstrate a nanostructured stealth surface, with minimal reflectance (<0.02%) and maximal transmittance (>99.8%) for a wavelength range, covering visible and near-infrared. Compared to multilayer thin film coatings for near-infrared applications our antireflective surfaces operate within a much broader wavelength range, are mechanical stable to resist human touch or contamination, show a 44% higher laser-induced damage threshold, and are suitable for bended interfaces such as microlenses as well.
Collapse
Affiliation(s)
- Z Diao
- Department of Cellular Biophysics, Max Planck Institute for Medical Research, Heidelberg, and Laboratory of Biophysical Chemistry, University of Heidelberg , Jahnstraße 29, 69120 Heidelberg, Germany
| | - M Kraus
- University of Applied Sciences Jena , Carl Zeiss Promenade 2, 07745 Jena, Germany
| | - R Brunner
- University of Applied Sciences Jena , Carl Zeiss Promenade 2, 07745 Jena, Germany
| | - J-H Dirks
- Department of Cellular Biophysics, Max Planck Institute for Medical Research, Heidelberg, and Laboratory of Biophysical Chemistry, University of Heidelberg , Jahnstraße 29, 69120 Heidelberg, Germany
| | - J P Spatz
- Department of Cellular Biophysics, Max Planck Institute for Medical Research, Heidelberg, and Laboratory of Biophysical Chemistry, University of Heidelberg , Jahnstraße 29, 69120 Heidelberg, Germany
| |
Collapse
|
9
|
Yan Q, Cheng X, Shen J, Huang C, Jiang R, Diao Z, Ding L, Zhen X, Yan G, Sun H. Four and a half LIM domains 1 (FHL1) positively regulates embryo adhesion via binding homeoboxa10 (HOXA10). Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
10
|
Cheng X, Huang C, Yan Q, Shen J, Jiang R, Diao Z, Ding L, Zhen X, Yan G, Sun H. Activating transcription factor 3 (ATF3) facilitates decidual prolactin secretion in human endometrial stromal cells by increasing forkhead box O1 (FOXO1) expression. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
11
|
Losby JE, Sani FF, Grandmont DT, Diao Z, Belov M, Burgess JAJ, Compton SR, Hiebert WK, Vick D, Mohammad K, Salimi E, Bridges GE, Thomson DJ, Freeman MR. Torque-mixing magnetic resonance spectroscopy. Science 2015; 350:798-801. [DOI: 10.1126/science.aad2449] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
|
12
|
Abstract
Optomechanical transduction has demonstrated its supremacy in probing nanomechanical displacements. In order to apply nano-optomechanical systems (NOMS) as force and mass sensors, knowledge about the transduction responsivity (i.e. the change in measured optical transmission with nanomechanical displacement) and its tradeoffs with system design is paramount. We compare the measured responsivities of NOMS devices with varying length, optomechanical coupling strength gom, and optical cavity properties. Cantilever beams 1.5 to 5 μm long are fabricated 70 to 160 nm from a racetrack resonator optical cavity and their thermomechanical (TM) noise signals are measured. We derive a generic expression for the transduction responsivity of the NOMS in terms of optical and mechanical system parameters such as finesse, optomechanical coupling constant, and interaction length. The form of the expression holds direct insight as to how these parameters affect the responsivity. With this expression, we obtain the optomechanical coupling constants using only measurements of the TM noise power spectra and optical cavity transmission slopes. All optical pump/probe operation is also demonstrated in our side-coupled cantilever-racetrack NOMS. Finally, to assess potential operation in a gas sensing environment, the TM noise signal of a device is measured at atmospheric pressure.
Collapse
Affiliation(s)
- V T K Sauer
- National Institute for Nanotechnology, 11421 Saskatchewan Drive, T6G 2M9, Edmonton, Canada. Department of Electrical and Computer Engineering, University of Alberta, Edmonton, T6G 2V4, Canada
| | | | | | | |
Collapse
|
13
|
Xue P, Zheng M, Diao Z, Shen L, Liu M, Gong P, Sun H, Hu Y. miR-155* mediates suppressive effect of PTEN 3'-untranslated region on AP-1/NF-κB pathway in HTR-8/SVneo cells. Placenta 2013; 34:650-6. [PMID: 23684381 DOI: 10.1016/j.placenta.2013.04.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 03/30/2013] [Accepted: 04/23/2013] [Indexed: 11/30/2022]
Abstract
Among miRNAs, miR-155 is a known regulator of immune system. Accumulating studies have revealed the connections between miR-155 and activator protein 1 (AP-1)/nuclear factor (NF)-κB. However, miR-155*, a miR-155 paralog, has so far been less studied. Here we demonstrated that miR-155*, induced by lipopolysaccharide (LPS) in an AP-1/NF-κB dependent manner, played a positive feedback role in AP-1/NF-κB pathway via targeting interleukin-1 receptor-associated kinase M (IRAKM) and NF-κB inhibitor interacting Ras-like 1 (NKIRAS1) in trophoblasts. Our study further proved that miR-155*-targeted PTEN 3'-untranslated region (3'UTR) increased IRAKM and NKIRAS1 expression by competing for miR-155* binding, thereby suppressing AP-1/NF-κB activation induced by LPS.
Collapse
Affiliation(s)
- P Xue
- Drum Tower Clinical Medical College, Nanjing Medical University, Nanjing 210029, China
| | | | | | | | | | | | | | | |
Collapse
|
14
|
Dharanipathy U, Vico Triviño N, Yan C, Diao Z, Carlin JF, Grandjean N, Houdré R. Near-infrared characterization of gallium nitride photonic-crystal waveguides and cavities. Opt Lett 2012; 37:4588-4590. [PMID: 23164847 DOI: 10.1364/ol.37.004588] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We report the design and optical characterization of fully suspended wire waveguides and photonic crystal (PhC) membranes fabricated on a gallium nitride layer grown on silicon substrate operating at 1.5 μm. W1-type PhC waveguides are coupled with suspended wires and are investigated using a standard end-fire setup. The experimental and theoretical dispersion properties of the propagating modes in the wires and photonic-crystal waveguides are shown. Modified L3 cavities with quality factors of up to 2200 and heterostructure cavities with quality factors of up to 5400 are experimentally demonstrated.
Collapse
Affiliation(s)
- U Dharanipathy
- Institut de Physique de la Matière Condensée, École Polytechnique Fédérale de Lausanne (EPFL), Station 3, Lausanne CH-1015, Switzerland.
| | | | | | | | | | | | | |
Collapse
|
15
|
Dai Y, Qiu Z, Diao Z, Shen L, Xue P, Sun H, Hu Y. MicroRNA-155 inhibits proliferation and migration of human extravillous trophoblast derived HTR-8/SVneo cells via down-regulating cyclin D1. Placenta 2012; 33:824-9. [PMID: 22858023 DOI: 10.1016/j.placenta.2012.07.012] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Revised: 06/29/2012] [Accepted: 07/17/2012] [Indexed: 01/28/2023]
Abstract
MiR-155 is known to participate in various cellular processes by targeting gene expression. We previously revealed a link between miR-155 and perturbation of trophoblast invasion and differentiation. This study aimed to investigate the target molecule(s) of miR-155 on the influence on the proliferation and migration of trophoblast cells. Bioinformatics analysis showed that, at the 3' untranslated region (UTR) of cyclin D1, six bases are complementary to the seed region of miR-155. Luciferase assays and cyclin D1 3'UTR transfection assays validated that cyclin D1 3'UTR was the target of miR-155 in HTR-8/SVneo cells. Overexpression of miR-155 in HTR-8/SVneo cells reduced the level of cyclin D1 protein, decreased cell proliferation and invasion, and increased cell number at the G1 stage. Furthermore, the increased expression of miR-155 also regulated the protein levels of kinase inhibitory protein p27 and phosphorylated cytoskeletal protein filamin A. In conclusion, we found that cyclin D1 may be a target of miR-155 in HTR-8/SVneo cells, and demonstrated a negative regulatory role of miR-155 involved in cyclin D1/p27 pathway in proliferation and migration of the cells.
Collapse
Affiliation(s)
- Y Dai
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing 210008, China
| | | | | | | | | | | | | |
Collapse
|
16
|
Zhang X, Yan G, Diao Z, Sun H, Hu Y. NUR77 inhibits the expression of TIMP2 and increases the migration and invasion of HTR-8/SVneo cells induced by CYR61. Placenta 2012; 33:561-7. [PMID: 22551568 DOI: 10.1016/j.placenta.2012.04.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2011] [Revised: 03/15/2012] [Accepted: 04/05/2012] [Indexed: 12/21/2022]
Abstract
OBJECTIVE To investigate the function and mechanism of CYR61 on the migration and invasion of the trophoblast cell line, HTR-8/SVneo cells. STUDY DESIGN The mRNA and protein levels of NUR77 in the placentas of normal and preeclampsia (PE) women were evaluated using real-time PCR and Western blot, respectively. Paraffin-embedded tissues were processed for localization of NUR77 protein in placental villus by immunohistochemistry. HTR-8/SVneo cells were cultured in the presence of CYR61, Ad-NUR77 or a small interfering RNA for NUR77 (Ad-sinur77). The expression of NUR77 in the HTR-8/SVneo cells was detected and the effects of CYR61 on the migration and invasion of HTR-8/SVneo cells were assessed in wound-healing and transwell experiments, respectively. Gelatin zymography was used to measure the MMP2 release in HTR-8/SVneo cells. RESULTS NUR77 is significantly decreased in the placenta of women with PE compared with the levels during a normal pregnancy. CYR61 can significantly increase the expression of NUR77 in HTR-8/SVneo cells. CYR61, as well as NUR77, can promote HTR-8/SVneo cells migration and invasion, which can be blocked by Ad-sinur77. Both CYR61 and Ad-nur77 reduced the mRNA expression of TIMP2 in HTR-8/SVneo cells. CONCLUSIONS CYR61 may promote HTR-8/SVneo cells migration and invasion through the upregulation of NUR77, leading to the increase of MMP2 release and the downregulation of TIMP2 expression.
Collapse
Affiliation(s)
- X Zhang
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, China
| | | | | | | | | |
Collapse
|
17
|
Diao Z, Wang J, Qi H, Li X, Zheng X, Yin C. Treatment of angiostrongyliasis using a combination of albendazole and dexamethasone: the results of a retrospective and comparative study. Ann Trop Med Parasitol 2011; 105:65-9. [PMID: 21294950 DOI: 10.1179/136485910x12851868780342] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
As the information available on the treatment of angiostrongyliasis with a combination of albendazole and dexamethasone is limited, the efficacy of such therapy was assessed using data collected during the 2006 outbreak of angiostrongyliasis in Beijing. In a retrospective and controlled study, 35 patients treated with albendazole-dexamethasone (given 20 mg albendazole/kg and 3 mg dexamethasone daily for 7 days) were compared with 34 controls who were treated only symptomatically (with acetaminophen or other drugs). Compared with the controls, the patients given the combination were less likely to have headaches after 7 days (P = 0·038), tended to have headaches that cleared quicker (P = 0·010), and received fewer doses of acetaminophen (P = 0·036). Since no serious adverse effects were observed, a 1-week treatment with a combination of albendazole and dexamethasone appears both safe and beneficial in the treatment of angiostrongyliasis.
Collapse
Affiliation(s)
- Z Diao
- Beijing Tropical Medicine Research Institute, Beijing Friendship Hospital, Capital Medical University, 95 Yong-An Road, Beijing, China
| | | | | | | | | | | |
Collapse
|
18
|
Li Z, Zhang S, Diao Z, Ding Y, Tang X, Apalkov DM, Yang Z, Kawabata K, Huai Y. Perpendicular spin torques in magnetic tunnel junctions. Phys Rev Lett 2008; 100:246602. [PMID: 18643606 DOI: 10.1103/physrevlett.100.246602] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2007] [Indexed: 05/26/2023]
Abstract
We quantitatively determine a perpendicular spin torque in magnetic tunnel junctions by measuring the room-temperature critical switching current at various magnetic fields and current pulse widths. We find that the magnitude of the torque is proportional to the product of the current density and the bias voltage, and the direction of the torque reverses as the polarity of the voltage changes. By taking into account the energy-dependent inelastic scattering of tunnel electrons, we formulate the bias dependence of the perpendicular spin torque which is in qualitative agreement with the experimental results.
Collapse
Affiliation(s)
- Z Li
- Grandis Inc., 1123 Cadillac Court, Milpitas, California 95035, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
19
|
Prina-Mello A, Diao Z, Coey J. Mesenchymal stromal cell alignment by magnetic field after internalization of nickel nanowires. J Biomech 2006. [DOI: 10.1016/s0021-9290(06)83842-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
20
|
Abstract
AIMS To determine inactivation of Listeria monocytogenes by the two lactic acid isomers. METHODS AND RESULTS The survival of four strains with varying sensitivity to acid was determined following treatment with L- or D-lactic acid at 100 mmol l(-1) (pH 3.7) or HCl at pH 3.37. There was some, but not complete, similarity in the relative sensitivity of the four strains to the two types of acid. All strains were most sensitive to D-lactic acid, which gave 0.6-2.2 log units greater reduction than L-lactic acid midway in the inactivation curves. Even very low concentrations of the two isomers had an immediate effect on pH(i) which was identical for the two isomers. CONCLUSIONS The results show that L. monocytogenes is more sensitive to D- than to L-lactic acid; however, this difference is less than the strain variation in L-lactic acid sensitivity. SIGNIFICANCE AND IMPACT OF THE STUDY This work has implications for the application of lactic acid for food preservation as well as for the understanding of the antibacterial mechanisms of weak organic acids.
Collapse
Affiliation(s)
- A Gravesen
- Department of Food Science, Centre of Advanced Food Studies, The Royal Veterinary and Agricultural University, Frederiksberg C, Denmark.
| | | | | | | | | |
Collapse
|
21
|
Deng X, Zhu Y, Diao Z, Qi Y, Zhou Z. [Construction of a novel Bm NPV Bac to Bac system]. Wei Sheng Wu Xue Bao 2000; 40:155-60. [PMID: 12548938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
A Bi-Shuttle vector Bm-Bacmid was constructed by co-infecting Bm N cells with wild type genomic DNA from BmNPV and Ac-Bacmid DNA. It could not only replicate in E. coli cells as a large plasmid and but also remain infectious when induced into Bm N or Sf9 cells. Recombinant virus rBmHBe was obtained after transposition of a donor plasmid carrying Hepatitis Be antigen gene (HBeAg) into att Tn7, and was demonstrated by Southern blotting. SDS-PAGE analysis showed that HBeAg gene were highly expressed in Bm N cells. By ELISA testing, the highest antigenecity titer of HBeAg protein in cell cultural medium was up to a dilution of 1:32,000. Although HBeAg protein also presented in the Bm N cells the titer was only 1:2000. The HBcAg protein was much fewer than HBeAg (< 1:160) whatever in culture medium and in cells. The results showed that Bm N cells was able to recognize the signal peptide sequence and cut it correctly for HBeAg protein's excreting production.
Collapse
Affiliation(s)
- X Deng
- Nanjing Command Military Medical Institute, Nanjing 210002
| | | | | | | | | |
Collapse
|