101
|
Xu Y, Jiang C, Han S, Lin G, Zhu X, Feng J, Zhang G, Lin Q. MA 16.14 c-Met in Esophageal Squamous Cell Carcinoma: An Independent Prognostic Factor and Potential Therapeutic Target. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
102
|
Wang W, Xu C, Zhuang W, Song Z, Lin G, Zhu Y, Chen X, Chen R, Guan Y, Yi X, Chen Y, Chen G, Fang M, Lv T, Song Y. A multicenter study of noninvasive genotyping and dynamic monitoring of ROS1+NSCLC receiving treatment with crizotinib by next generation sequencing. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx671.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
103
|
Huang Y, Wang W, Xu C, Zhuang W, Song Z, Huang Z, Lin G, Chen X, Wu B, Chen Y, Chen G, Fang M. P3.01-008 Association between Icotinib Efficacy and Circulating Tumor Cell Levels in Advanced Non-Small Cell Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
104
|
Chen R, Zhao J, Lin G, Liu L, Chen L, Hu X, Ai X, Fan Z, Xu C, Wang W, Zhuang W, Fang M, Zhu Y, Chen G, Guan Y, Yang L, Xia X, Yi X. MA 07.13 NGS Sequencing Based Liquid / Tissue Biopsy Identified Coexistence of HER2 Amplification and Mutation in Advanced NSCLC Patients. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.513] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
105
|
Wu B, Xu C, Wang W, Zheng X, Zhuang W, Song Z, Lin G, Chen X, Chen R, Guan Y, Yi X, Chen G, Fang M, Lv T, Song Y. P1.02-045 PIK3CA Mutations in Chinese Patients with Non-Small-Cell Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
106
|
Garg A, Kirby J, Lavian J, Lin G, Strunk A. LB938 US prevalence estimates for hidradenitis suppurativa with a focus on race. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
107
|
Miao S, He S, Liang M, Lin G, Cai B, Schmidt OG. Microtubular Fuel Cell with Ultrahigh Power Output per Footprint. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29. [PMID: 28691179 DOI: 10.1002/adma.201607046] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 06/08/2017] [Indexed: 06/07/2023]
Abstract
A novel realization of microtubular direct methanol fuel cells (µDMFC) with ultrahigh power output is reported by using "rolled-up" nanotechnology. The microtube (Pt-RuO2 -RUMT) is prepared by rolling up Ru2 O layers coated with magnetron-sputtered Pt nanoparticles (cat-NPs). The µDMFC is fabricated by embedding the tube in a fluidic cell. The footprint of per tube is as small as 1.5 × 10-4 cm2 . A power density of ≈257 mW cm-2 is obtained, which is three orders of magnitude higher than the present microsized DFMCs. Atomic layer deposition technique is applied to alleviate the methanol crossover as well as improve stability of the tube, sustaining electrolyte flow for days. A laminar flow driven mechanism is proposed, and the kinetics of the fuel oxidation depends on a linear-diffusion-controlled process. The electrocatalytic performance on anode and cathode is studied by scanning both sides of the tube wall as an ex situ working electrode, respectively. This prototype µDFMC is extremely interesting for integration with micro- and nanoelectronics systems.
Collapse
|
108
|
He WB, Banerjee S, Meng LL, Du J, Gong F, Huang H, Zhang XX, Wang YY, Lu GX, Lin G, Tan YQ. Whole-exome sequencing identifies a homozygous donor splice-site mutation in STAG3 that causes primary ovarian insufficiency. Clin Genet 2017; 93:340-344. [PMID: 28393351 DOI: 10.1111/cge.13034] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 03/29/2017] [Accepted: 04/03/2017] [Indexed: 01/13/2023]
Abstract
Primary ovarian insufficiency (POI) is the depletion or loss of normal ovarian function, which cause infertility in women before the age of 40 years. Two homozygous germline truncation mutations in STAG3 gene had been reported to causes POI in consanguineous families. Here, we aimed to identify the genetic cause of POI in 2 affected sisters manifested with primary amenorrhea and partial development of secondary sexual characters with normal range of height of a consanguineous Han Chinese family. Whole-exome and Sanger sequencing identified a homozygous donor splice-site mutation (NM_012447.2: c.1573+5G>A) in the STAG3 gene. RT-PCR revealed that the mutation causes loss of wild-type donor splice-site which leads to aberrant splicing of STAG3 mRNA and consecutive formation of STAG3 alternative transcript (p.Leu490Thrfs*10) . This is the first report of splice-site mutation of STAG3 gene causes POI in 2 Han Chinese patients.
Collapse
|
109
|
Zhan T, Jiang W, Li C, Luo X, Lin G, Li Y, Xiao S. High performed composites of LiFePO4/3DG/C based on FePO4 by hydrothermal method. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.05.151] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
110
|
Xu L, Cai S, Xiao T, Chen Y, Qiu H, Wu B, Lin G, Sun X, Lu J, Zhou W, Xiao Y. Prognostic significance of tumour regression grade after neoadjuvant chemoradiotherapy for a cohort of patients with locally advanced rectal cancer: an 8-year retrospective single-institutional study. Colorectal Dis 2017; 19:O263-O271. [PMID: 28603932 DOI: 10.1111/codi.13757] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 04/12/2017] [Indexed: 12/25/2022]
Abstract
AIM Locally advanced rectal cancer (LARC) is frequently treated with neoadjuvant chemoradiotherapy (NACRT) to reduce the risk of local recurrence and improve survival. Tumour response to NACRT is variable and may influence the prognosis after subsequent surgery. This study compared the prognostic values of tumour regression grade (TRG) and neoadjuvant pathological (ypTNM) downstaging in patients with Stage II and III rectal cancer treated with NACRT followed by curative surgery. METHOD This study included 185 patients with LARC treated with long-course radiotherapy (45 Gy in 25 fractions) plus 5-fluorouracil over 5 weeks between 2005 and 2013. We used multivariate analysis to assess the relationship of Dworak's five-tier TRG, ypTNM stage and ypTNM downstaging with clinicopathological factors, 5-year disease-free survival (DFS) and 5-year overall survival (OS). RESULTS Total regression (TRG4), good regression (TRG3), moderate regression (TRG2), minor regression (TRG1) and no regression (TRG0) were seen in 38 (20.6%), 65 (35.2%), 43 (23.2%), 28 (15.1%) and 11 (5.9%) patients, respectively. TNM downstaging following NACRT occurred in 109 (58.9%) patients. The 5-year DFS rates after NACRT for TRG0, TRG1, TRG2, TRG3 and TRG4 were 0%, 58.5%, 66.4%, 80.4% and 82.6%, respectively (P < 0.001). The ypTNM stage correlated with 5-year DFS (P = 0.004) but not 5-year OS (P = 0.075). Multivariate analysis demonstrated that TRG was related to both DFS and OS (P < 0.001). CONCLUSION TRG measured on a five-tier system was better than ypTNM stage for predicting outcome in patients with LARC treated with NACRT and surgery.
Collapse
|
111
|
Tseng C, Yazdany J, Dudley R, Dejong C, Kazi D, Chen R, Lin G. MEDICARE PART D—COST BURDEN OF INHALED DRUGS FOR CHRONIC OBSTRUCTIVE PULMONARY DISEASE. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
112
|
Lin G, Makarov D, Schmidt OG. Magnetic sensing platform technologies for biomedical applications. LAB ON A CHIP 2017; 17:1884-1912. [PMID: 28485417 DOI: 10.1039/c7lc00026j] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Detection and quantification of a variety of micro- and nanoscale entities, e.g. molecules, cells, and particles, are crucial components of modern biomedical research, in which biosensing platform technologies play a vital role. Confronted with the drastic global demographic changes, future biomedical research entails continuous development of new-generation biosensing platforms targeting even lower costs, more compactness, and higher throughput, sensitivity and selectivity. Among a wide choice of fundamental biosensing principles, magnetic sensing technologies enabled by magnetic field sensors and magnetic particles offer attractive advantages. The key features of a magnetic sensing format include the use of commercially available magnetic field sensing elements, e.g. magnetoresistive sensors which bear huge potential for compact integration, a magnetic field sensing mechanism which is free from interference by complex biomedical samples, and an additional degree of freedom for the on-chip handling of biochemical species rendered by magnetic labels. In this review, we highlight the historical basis, routes, recent advances and applications of magnetic biosensing platform technologies based on magnetoresistive sensors.
Collapse
|
113
|
Chen X, Yang D, Lin G, Bao J, Wang J, Tan W. Efficacy of varicocelectomy in the treatment of hypogonadism in subfertile males with clinical varicocele: A meta-analysis. Andrologia 2017; 49. [PMID: 28378913 DOI: 10.1111/and.12778] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/07/2016] [Indexed: 01/14/2023] Open
|
114
|
Garcia M, Banie L, Lin G. 071 A Novel Biological Device to Secure and Protect Neophallus Penile Prosthesis Cylinders and the Neourethra following Phalloplasty: Acellular Matrix of Intact Penile Tunica made from Human Penis Specimens following Vaginoplasty. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2016.12.085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
115
|
Li H, Wu A, Reed-Maldonado A, Ning H, Banie L, Wang L, Lee Y, Xin Z, Guo Y, Lin G, Lue T. 144 Therapeutic Mechanism of Low Intensity Extracorporeal Shock Wave in Ameliorating Neurogenic Erectile Dysfunction in Bilateral Cavernous Nerve Injury Rat Model. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2016.11.093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
116
|
Lin G, Han SY, Xu YP, Mao WM. Increasing the interval between neoadjuvant chemoradiotherapy and surgery in esophageal cancer: a meta-analysis of published studies. Dis Esophagus 2016; 29:1107-1114. [PMID: 26542065 DOI: 10.1111/dote.12432] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The aim of this meta-analysis was to clarify whether a longer interval between the end of neoadjuvant chemoradiotherapy (nCRT) and surgery is associated with better outcomes in esophageal cancer. nCRT followed by surgery is the most common approach for patients with resectable esophageal cancer. Operations are performed within 2-8 weeks after nCRT; however, the optimal interval between nCRT and surgery for esophageal cancer is unknown. We performed a systematic literature search in MEDLINE, EMBASE, the Cochrane Central Register of Controlled Trials, and the Clinical Trials database for studies published between January 2000 and December 2014. Eligible studies were prospective or retrospective studies of esophageal cancer that assessed the effects of intervals longer or shorter than 7-8 weeks between the end of nCRT and surgery. The primary end-points were the overall survival (OS) and pathologic complete response (pCR). Secondary end-points were anastomotic leak, R0 resection, and postoperative mortality rate. A meta-analysis was performed to estimate odds ratios (ORs) using fixed-effect and random-effect models, with Review Manager 5.2. The five studies that met the eligibility requirements included 1,016 patients: 520 in the shorter interval group (≤7-8 weeks) and 496 in the longer interval group (>7-8 weeks). The results of our meta-analysis indicate that a longer interval between nCRT and surgery may be disadvantageous for 2-year OS (OR = 1.40, 95% confidence interval [CI]: 1.09-1.80, P = 0.010) and R0 resection rate (OR = 1.71, 95% CI: 1.14-2.22, P = 0.009). The pCR, anastomotic leak rate, and postoperative morbidity were similar in the two groups. A longer interval (more than the standard 7-8 weeks) from the end of preoperative nCRT to surgery did not increase the rate of pCR in esophageal cancer, and the different intervals had similar effects on anastomotic leak rate and postoperative mortality rates. However, the longer interval between nCRT and surgery may be disadvantageous for long-term OS. These results should be validated prospectively in a randomized trial.
Collapse
|
117
|
Chen J, Han J, Guan W, Chen F, Wang C, Zhang Y, Lv Y, Lin G. Selenium and vitamin E in sow diets: I. Effect on antioxidant status and reproductive performance in multiparous sows. Anim Feed Sci Technol 2016. [DOI: 10.1016/j.anifeedsci.2016.08.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
118
|
Han S, Lin G, Jiang C, Sun X, Shi G, Wang Z, Wang Y, Xu Y, Mao W. A Retrospective Study of Shrinking Field Radiation Therapy During Chemoradiation Therapy in Stage III Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
119
|
Lin G, Wang Z, Sun X, Liu J, Xu Y. Lymph Node Drainage Patterns in Resectable Non-Small Cell Lung Cancer and Its Clinical Significance. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
120
|
Lin G, Karnaushenko DD, Bermúdez GSC, Schmidt OG, Makarov D. Magnetic Suspension Array Technology: Controlled Synthesis and Screening in Microfluidic Networks. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:4553-4562. [PMID: 27426124 DOI: 10.1002/smll.201601166] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 06/12/2016] [Indexed: 06/06/2023]
Abstract
Information tagging and processing are vital in information-intensive applications, e.g., telecommunication and high-throughput drug screening. Magnetic suspension array technology may offer intrinsic advantages to screening applications by enabling high distinguishability, the ease of code generation, and the feasibility of fast code readout, though the practical applicability of magnetic suspension array technology remains hampered by the lack of quality administration of encoded microcarriers. Here, a logic-controlled microfluidic system enabling controlled synthesis of magnetic suspension arrays in multiphase flow networks is realized. The smart and compact system offers a practical solution for the quality administration and screening of encoded magnetic microcarriers and addresses the universal need of process control for synthesis in microfluidic networks, i.e., on-demand creation of droplet templates for high information capacity. The demonstration of magnetic suspension array technology enabled by magnetic in-flow cytometry opens the avenue toward point-of-care multiplexed bead-based assays, clinical diagnostics, and drug discovery.
Collapse
|
121
|
Abstract
Nondegradable glass microspheres (35 μ) were injected into the portal vein for toxicity test in 15 rabbits. In 10 animals the microspheres were loaded with 90Y, giving liver absorbed doses between 24.6 and 437.4 Gy, and in 5 with 89Y (control group). The total amount of microspheres injected in each animal varied between 35 and 140 mg. The rabbits in the experimental group tolerated the effect of radioembolization in a dose 4 times higher than the upper limit of the clinical dose (100 Gy). After injection of 90Y glass microspheres into the portal vein of rats with diethylnitrosamine (DEN)-induced hepatic carcinoma, the microspheres, in addition to the liver parenchyma, accumulated in central and peripheral parts of the cancer nodules, causing necrosis. The internal radiation therapy of 90Y glass microspheres delivered via the portal vein may be an effective nonsurgical method for the treatment of liver cancer, especially in small nodules.
Collapse
|
122
|
Gu ZM, Lin G, Yi JR, Li JM, Zhou J, Pan WM. Transluminal Catheter Angioplasty of Abdominal Aorta in Takayasu's Arteritis. Acta Radiol 2016. [DOI: 10.1177/028418518802900503] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Nine patients with Takayasu's arteritis and a long stenotic segment of the abdominal aorta were treated by percutaneous transluminal angioplasty (PTA). Intermittent claudication dissappeared in six of seven cases, the femoral pulse reappeared in all five; ankle/arm indices increased in seven cases; elevated blood pressure normalized in seven of eight cases. Seven patients were followed for 3 to 28 months. They were all free of symptoms from the lower extremities. In three patients with or without renal artery stenosis and with hypertension, the blood pressure decreased after PTA of the abdominal aorta only. PTA may be a valuable treatment in Takayasu's arteritis and stenosis of the abdominal aorta.
Collapse
|
123
|
Zhu YH, Lin G, Dai ZL, Zhou TJ, Yuan TL, Feng CP, Chen F, Wu GY, Wang JJ. Developmental changes in polyamines and autophagic marker levels in normal and growth-restricted fetal pigs. J Anim Sci 2016; 93:3503-11. [PMID: 26440019 DOI: 10.2527/jas.2014-8743] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Polyamines are essential for embryonic and fetal survival, growth, and development. Additionally, polyamines may induce autophagy in mammalian cells. However, little is known about the availability of polyamines or autophagy in the porcine conceptus with intrauterine growth restriction (IUGR). The present study was performed to evaluate the developmental changes of polyamine concentrations in IUGR and normal porcine fetuses as well as autophagic marker levels in the fetal intestinal mucosa during the second half of gestation when most fetal growth occurs. Allantoic fluid (ALF), amniotic fluid (AMF), umbilical vein, and the small-intestinal mucosa were obtained from both IUGR and normal fetal pigs at d 60, 90, and 110 of gestation. Concentrations of polyamines in fetal fluids as well as protein abundances of microtubule-associated protein light chain 3B (LC3B), an autophagic marker, in the fetal small-intestinal mucosa were determined. Concentrations of polyamines varied greatly in different fetal compartments and changed substantially with advancing gestation. Concentrations of polyamines in IUGR fetal fluids and the small-intestinal mucosa were markedly different from those in their normal counterparts at d 60 and 90 of gestation, whereas most of the differences were not detected by late (d 110) gestation. Specifically, polyamine levels were lower in the umbilical vein plasma but higher in ALF and AMF from IUGR fetuses. Furthermore, enhanced levels of an autophagic marker were observed in the small-intestinal mucosa of IUGR fetuses throughout mid and late gestation in association with abnormal spermidine levels in fetal plasma. These findings support the notion that enhanced autophagy may be an important survival mechanism in IUGR fetuses. Collectively, our findings provide a new framework for future studies to define the roles for polyamines in the prevention and treatment of IUGR in both human medicine and animal production.
Collapse
|
124
|
Soliman H, Varela JN, Nyamandi V, Garcia-Patino M, Lin G, Bankar GR, Jia Z, MacLeod KM. Attenuation of obesity-induced insulin resistance in mice with heterozygous deletion of ROCK2. Int J Obes (Lond) 2016; 40:1435-43. [PMID: 27163743 DOI: 10.1038/ijo.2016.89] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 03/26/2016] [Accepted: 04/19/2016] [Indexed: 12/20/2022]
Abstract
BACKGROUND/OBJECTIVES Obesity-associated insulin resistance is a major risk factor for the development of type 2 diabetes, cardiovascular disease and non-alcoholic liver disease. Over-activation of the RhoA-Rho kinase (ROCK) pathway has been implicated in the development of obesity-induced insulin resistance, but the relative contribution of ROCK2 has not been elucidated. This was investigated in the present study. METHODS Male ROCK2+/- mice and their wild-type (WT) littermate controls were fed normal chow or a high fat diet (HFD) for 18 weeks. Glucose and insulin tolerance tests were conducted 8 and 16 weeks after the start of feeding. At termination, isoform-specific ROCK activity and insulin signaling were evaluated in epididymal adipose tissue. Adipocyte size was assessed morphometrically, while adipose tissue production of PPARγ was determined by western blotting, and inflammatory cytokines were evaluated by RT-PCR and immunofluorescence. RESULTS The decrease in systemic insulin sensitivity and glucose tolerance produced by high fat feeding was attenuated in ROCK2+/- mice. There was no reduction in food intake, body weight or epididymal fat pad weight in HFD-ROCK2+/- mice. However, the increase in adipocyte size detected in HFD-WT mice was attenuated in HFD-ROCK2+/- mice. The increase in adipose tissue ROCK2 activity produced by high fat feeding in WT mice was also prevented in ROCK2+/- mice, and this was accompanied by improved insulin-induced phosphorylation of Akt. The expression of both isoforms of PPARγ was increased in adipose tissue from HFD-ROCK2+/- mice, while adipocyte hypertrophy and production of inflammatory cytokines were reduced compared with HFD-WT mice. CONCLUSIONS These data suggest that activation of ROCK2 in adipose tissue contributes to obesity-induced insulin resistance. This may result in part from suppression of PPARγ expression, leading to adipocyte hypertrophy and an increase in inflammatory cytokine production. ROCK2 may be a suitable target to improve insulin sensitivity in obesity.
Collapse
|
125
|
Li HL, Wei JF, Fan LY, Wang SH, Zhu L, Li TP, Lin G, Sun Y, Sun ZJ, Ding J, Liang XL, Li J, Han Q, Zhao RCH. miR-302 regulates pluripotency, teratoma formation and differentiation in stem cells via an AKT1/OCT4-dependent manner. Cell Death Dis 2016; 7:e2078. [PMID: 26821070 PMCID: PMC4816169 DOI: 10.1038/cddis.2015.383] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 10/20/2015] [Accepted: 11/20/2015] [Indexed: 12/12/2022]
Abstract
Pluripotency makes human pluripotent stem cells (hPSCs) promising for regenerative medicine, but the teratoma formation has been considered to be a major obstacle for their clinical applications. Here, we determined that the downregulation of miR-302 suppresses the teratoma formation, hampers the self-renewal and pluripotency, and promotes hPSC differentiation. The underlying mechanism is that the high endogenous expression of miR-302 suppresses the AKT1 expression by directly targeting its 3'UTR and subsequently maintains the pluripotent factor OCT4 at high level. Our findings reveal that miR-302 regulates OCT4 by suppressing AKT1, which provides hPSCs two characteristics related to their potential for clinical applications: the benefit of pluripotency and the hindrance of teratoma formation. More importantly, we demonstrate that miR-302 upregulation cannot lead OCT4 negative human adult mesenchymal stem cells (hMSCs) to acquire the teratoma formation in vivo. Whether miR-302 upregulation can drive hMSCs to acquire a higher differentiation potential is worthy of deep investigation.
Collapse
|
126
|
Mihalcea D, Bergler-Klein J, Grogan M, Pagourelias E, Faber L, Ciampi Q, Debonnaire P, Saberniak J, Florescu M, Vladareanu AM, Mihaila S, Vinereanu D, Spannbauer A, Zlabinger K, Macejovska D, Maurer G, Gyongyosi M, Scott C, Lin G, Klarich K, Miller W, Dispenzieri A, Mirea OC, Duchenne J, Vovas G, Van Aelst L, Claus P, Van Cleemput J, Delforge M, Bogaert J, Voigt JU, Burghardt A, Seggewiss H, Van Buuren F, Horstkotte D, Olivotto I, Gardini C, Monserrat L, Peteiro J, Lopes L, Cotrim C, Losi MA, Lazzeroni DE, Picano E, Joyce E, Van Den Brink OVW, Bax JJ, Delgado V, Ajmone Marsan N, Leren IS, Haland TF, Hopp E, Edvardsen T, Haugaa KH. Rapid Fire Abstract session: new insights in cardiomyopthies434The role of 4D echocardiography and cardiac biomarkers for early detection of chemotherapy induced cardiotoxicity in nonHodgkin lymphoma patients435Identification of proto-oncogenes and genes responsible for myocardial fibrosis and diastolic dysfunction after anticancer treatment under experimental conditions436Wild type transthyretin cardiac amyloidosis: clinical characteristics, echocardiographic findings, and predictors of outcome437A novel echocardiographic index for detection of cardiac amyloidosis.438Left ventricular outflow obstruction is a treatable feature rather than a risk marker in patients with hypertrophic cardiomyopathy439The international stress echo registry in hypertrophic cardiomyopathy440Value of left atrial size and function to risk stratify for new onset atrial fibrillation in hypertrophic cardiomyopathy441Right ventricle ejection fraction by cardiac resonance imaging is superior in discrimination between early phase ARVC and right ventricular outflow tract ventricular tachycardia. Eur Heart J Cardiovasc Imaging 2015. [DOI: 10.1093/ehjci/jev254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
127
|
Chiang Y, Lin G, Wang C. Early Apparent Diffusion Coefficient Changes During Concurrent Chemoradiation Therapy Predicting Survival for Women With Bulky Cervical Cancer. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
128
|
Lin G, Huang YT, Chao A, Ng KK, Yang LY, Ng SH, Lai CH. Influence of menopausal status on diagnostic accuracy of myometrial invasion in endometrial cancer: diffusion-weighted and dynamic contrast-enhanced MRI at 3 T. Clin Radiol 2015; 70:1260-8. [DOI: 10.1016/j.crad.2015.06.097] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Revised: 04/14/2015] [Accepted: 06/29/2015] [Indexed: 01/16/2023]
|
129
|
Karnaushenko D, Ibarlucea B, Lee S, Lin G, Baraban L, Pregl S, Melzer M, Makarov D, Weber WM, Mikolajick T, Schmidt OG, Cuniberti G. Flexible Electronics: Light Weight and Flexible High-Performance Diagnostic Platform (Adv. Healthcare Mater. 10/2015). Adv Healthc Mater 2015. [DOI: 10.1002/adhm.201570057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
130
|
Karnaushenko D, Ibarlucea B, Lee S, Lin G, Baraban L, Pregl S, Melzer M, Makarov D, Weber WM, Mikolajick T, Schmidt OG, Cuniberti G. Light Weight and Flexible High-Performance Diagnostic Platform. Adv Healthc Mater 2015; 4:1517-25. [PMID: 25946521 DOI: 10.1002/adhm.201500128] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 04/13/2015] [Indexed: 01/08/2023]
Abstract
A flexible diagnostic platform is realized and its performance is demonstrated for early detection of avian influenza virus (AIV) subtype H1N1 DNA sequences. The key component of the platform is high-performance biosensors based on high output currents and low power dissipation Si nanowire field effect transistors (SiNW-FETs) fabricated on flexible 100 μm thick polyimide foils. The devices on a polymeric support are about ten times lighter compared to their rigid counterparts on Si wafers and can be prepared on large areas. While the latter potentially allows reducing the fabrication costs per device, the former makes them cost efficient for high-volume delivery to medical institutions in, e.g., developing countries. The flexible devices withstand bending down to a 7.5 mm radius and do not degrade in performance even after 1000 consecutive bending cycles. In addition to these remarkable mechanical properties, on the analytic side, the diagnostic platform allows fast detection of specific DNA sequences of AIV subtype H1N1 with a limit of detection of 40 × 10(-12) m within 30 min suggesting its suitability for early stage disease diagnosis.
Collapse
|
131
|
Davis J, Lin G, Oh J, Crowson C, Achenbach S, Therneau T, Matteson E, Rodeheffer R, Gabriel S. THU0151 Five-year Progression of Left Ventricular Diastolic Dysfunction in Patients with Rheumatoid Arthritis Compared to the General Population. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
132
|
Yang S, Shi J, Gong F, Zhang S, Lu C, Tan K, Leng L, Hao M, He H, Gu Y, Lu G, Lin G. Cleavage pattern predicts developmental potential of day 3 human embryos produced by IVF. Reprod Biomed Online 2015; 30:625-34. [DOI: 10.1016/j.rbmo.2015.02.008] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 02/14/2015] [Accepted: 02/17/2015] [Indexed: 12/16/2022]
|
133
|
Lin G, Makarov D, Schmidt OG. Strong ferromagnetically-coupled spin valve sensor devices for droplet magnetofluidics. SENSORS 2015; 15:12526-38. [PMID: 26024419 PMCID: PMC4507669 DOI: 10.3390/s150612526] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 05/22/2015] [Indexed: 11/26/2022]
Abstract
We report a magnetofluidic device with integrated strong ferromagnetically-coupled and hysteresis-free spin valve sensors for dynamic monitoring of ferrofluid droplets in microfluidics. The strong ferromagnetic coupling between the free layer and the pinned layer of spin valve sensors is achieved by reducing the spacer thickness, while the hysteresis of the free layer is eliminated by the interplay between shape anisotropy and the strength of coupling. The increased ferromagnetic coupling field up to the remarkable 70 Oe, which is five-times larger than conventional solutions, brings key advantages for dynamic sensing, e.g., a larger biasing field giving rise to larger detection signals, facilitating the operation of devices without saturation of the sensors. Studies on the fundamental effects of an external magnetic field on the evolution of the shape of droplets, as enabled by the non-visual monitoring capability of the device, provides crucial information for future development of a magnetofluidic device for multiplexed assays.
Collapse
|
134
|
Chen S, Sun P, Wang S, Lin G, Wang T. Effects of heart rate variability biofeedback on cardiovascular responses and autonomic sympathovagal modulation following stressor tasks in prehypertensives. J Hum Hypertens 2015; 30:105-11. [DOI: 10.1038/jhh.2015.27] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 02/06/2015] [Accepted: 02/26/2015] [Indexed: 11/09/2022]
|
135
|
Melzer M, Karnaushenko D, Lin G, Baunack S, Makarov D, Schmidt OG. Direct transfer of magnetic sensor devices to elastomeric supports for stretchable electronics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:1333-8. [PMID: 25639256 PMCID: PMC5093710 DOI: 10.1002/adma.201403998] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Revised: 11/08/2014] [Indexed: 05/17/2023]
Abstract
A novel fabrication method for stretchable magnetoresistive sensors is introduced, which allows the transfer of a complex microsensor systems prepared on common rigid donor substrates to prestretched elastomeric membranes in a single step. This direct transfer printing method boosts the fabrication potential of stretchable magnetoelectronics in terms of miniaturization and level of complexity, and provides strain-invariant sensors up to 30% tensile deformation.
Collapse
|
136
|
Li H, Xu Y, Guan R, Matheu M, Lei H, Tian W, Gao Z, Lin G, Guo Y, Xin Z, Song W. Icariside II prevents high-glucose-induced injury on human cavernous endothelial cells through Akt-eNOS signaling pathway. Andrology 2015; 3:408-16. [PMID: 25641754 DOI: 10.1111/andr.303] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 10/01/2014] [Accepted: 10/03/2014] [Indexed: 12/21/2022]
|
137
|
Lin G, Makarov D, Medina-Sánchez M, Guix M, Baraban L, Cuniberti G, Schmidt OG. Magnetofluidic platform for multidimensional magnetic and optical barcoding of droplets. LAB ON A CHIP 2015; 15:216-24. [PMID: 25353316 DOI: 10.1039/c4lc01160k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
We present a concept of multidimensional magnetic and optical barcoding of droplets based on a magnetofluidic platform. The platform comprises multiple functional areas, such as an encoding area, an encoded droplet pool and a magnetic decoding area with integrated giant magnetoresistive (GMR) sensors. To prove this concept, penicillin functionalized with fluorescent dyes is coencapsulated with magnetic nanoparticles into droplets. While fluorescent dyes are used as conventional optical barcodes which are decoded with an optical decoding setup, an additional dimensionality of barcodes is created by using magnetic nanoparticles as magnetic barcodes for individual droplets and integrated micro-patterned GMR sensors as the corresponding magnetic decoding devices. The strategy of incorporating a magnetic encoding scheme provides a dynamic range of ~40 dB in addition to that of the optical method. When combined with magnetic barcodes, the encoding capacity can be increased by more than 1 order of magnitude compared with using only optical barcodes, that is, the magnetic platform provides more than 10 unique magnetic codes in addition to each optical barcode. Besides being a unique magnetic functional element for droplet microfluidics, the platform is capable of on-demand facile magnetic encoding and real-time decoding of droplets which paves the way for the development of novel non-optical encoding schemes for highly multiplexed droplet-based biological assays.
Collapse
|
138
|
Lin G, Fomin VM, Makarov D, Schmidt OG. Supervised discriminant analysis for droplet micro-magnetofluidics. MICROFLUIDICS AND NANOFLUIDICS 2015; 19:457-464. [PMID: 26379480 PMCID: PMC4562118 DOI: 10.1007/s10404-015-1579-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 03/28/2015] [Indexed: 05/10/2023]
Abstract
We apply the technique of supervised discriminant analysis (SDA) for in-flow detection in droplet-based magnetofluidics. Based on the SDA, we successfully discriminate bivariant droplets of different volumes containing different encapsulated magnetic content produced by a GMR-based lab-on-chip platform. We demonstrate that the accuracy of discrimination is superior when the correlation of variables for data training is included to the case when the spatial distribution of variables is considered. Droplets produced with differences in ferrofluid concentration of 2.5 mg/ml and volume of 200 pl have been identified with high accuracy (98 %), indicating the significance of SDA for e.g. the discrimination in magnetic immuno-agglutination assays. Furthermore, the results open the way for the development of a unique magnetofluidic platform for future applications in multiplexed droplet-based barcoding assays and screening.
Collapse
|
139
|
Lei H, Yang X, Zheng B, Lin G, Baker NA. CONSTRUCTING SURROGATE MODELS OF COMPLEX SYSTEMS WITH ENHANCED SPARSITY: QUANTIFYING THE INFLUENCE OF CONFORMATIONAL UNCERTAINTY IN BIOMOLECULAR SOLVATION. MULTISCALE MODELING & SIMULATION : A SIAM INTERDISCIPLINARY JOURNAL 2015; 13:1327-1353. [PMID: 26766929 PMCID: PMC4707684 DOI: 10.1137/140981587] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Biomolecules exhibit conformational fluctuations near equilibrium states, inducing uncertainty in various biological properties in a dynamic way. We have developed a general method to quantify the uncertainty of target properties induced by conformational fluctuations. Using a generalized polynomial chaos (gPC) expansion, we construct a surrogate model of the target property with respect to varying conformational states. To alleviate the high-dimensionality of the corresponding stochastic space, we propose a method to increase the sparsity of the gPC expansion by defining a set of conformational "active space" random variables. With the increased sparsity, we employ the compressive sensing method to accurately construct the surrogate model. We demonstrate the performance of the surrogate model by evaluating fluctuation-induced uncertainty in solvent-accessible surface area for the bovine trypsin inhibitor protein system and show that the new approach offers more accurate statistical information than standard Monte Carlo approaches. Furthermore, the constructed surrogate model also enables us to directly evaluate the target property under various conformational states, yielding a more accurate response surface than standard sparse grid collocation methods. In particular, the new method provides higher accuracy in high-dimensional systems, such as biomolecules, where sparse grid performance is limited by the accuracy of the computed quantity of interest. Our new framework is generalizable and can be used to investigate the uncertainty of a wide variety of target properties in biomolecular systems.
Collapse
|
140
|
Si W, Mönch I, Yan C, Deng J, Li S, Lin G, Han L, Mei Y, Schmidt OG. A single rolled-up Si tube battery for the study of electrochemical kinetics, electrical conductivity, and structural integrity. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:7973-7978. [PMID: 25339523 DOI: 10.1002/adma.201402484] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Revised: 09/15/2014] [Indexed: 06/04/2023]
Abstract
A lab-on-chip device is demonstrated for probing the electrochemical kinetics, electrical properties, and structure integrity of a single Si rolled-up tube as the anode in lithium-ion batteries. Cyclic voltammetry of the tube exhibits better-resolved peaks than of the planar film due to the enhanced diffusion. The tube is wrinkled after cycling. The tube could be used as a promising ultra-microelectrode for other voltammetry research.
Collapse
|
141
|
Lin G, Makarov D, Melzer M, Si W, Yan C, Schmidt OG. A highly flexible and compact magnetoresistive analytic device. LAB ON A CHIP 2014; 14:4050-8. [PMID: 25160858 DOI: 10.1039/c4lc00751d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
A grand vision of realization of smart and compact multifunctional microfluidic devices for wearable health monitoring, environment sensing and point-of-care tests emerged with the fast development of flexible electronics. As a vital component towards this vision, magnetic functionality in flexible fluidics is still missing although demanded by the broad utility of magnetic nanoparticles in medicine and biology. Here, we demonstrate the first flexible microfluidic analytic device with integrated high-performance giant magnetoresistive (GMR) sensors. This device can be bent to a radius of 2 mm while still retaining its full performance. Various dimensions of magnetic emulsion droplets can be probed with high precision using a limit of detection of 0.5 pl, providing broad applicability in high-throughput droplet screening, flow cytometry and drug development. The flexible feature of this analytic device holds great promise in the realization of wearable, implantable multifunctional platforms for biomedical, pharmaceutical and chemical applications.
Collapse
|
142
|
Zhang K, Wang L, Sun Y, Zhang R, Lin G, Xie J, Li J. Improving the safety of blood transfusion by using a combination of two screening assays for hepatitis C virus. Transfus Med 2014; 24:297-304. [PMID: 25262976 DOI: 10.1111/tme.12152] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 07/22/2014] [Accepted: 08/19/2014] [Indexed: 12/30/2022]
Abstract
BACKGROUND AND OBJECTIVES To illustrate that the combination of a single nucleic acid amplification test (NAT) with a single immunoassay for hepatitis C virus (HCV) detection, as proposed internationally, may lead to the omission of anti-HCV reactive sera with non-reactive NAT results. MATERIALS AND METHODS In total, 822 of 519, 299 serum samples from 11 blood centres in China were retested for anti-HCV by using 10 screening assays to detect HCV antibodies. A recombinant immunoblot assay (RIBA HCV 3·0; Ortho-Clinical Diagnostics) was performed to define confirmed HCV infection status. Samples with positive or indeterminate RIBA-HCV results were tested by quantitative tests for HCV RNA (Roche Diagnostics). RESULTS We found that 47 of the 822 (5·72%) serum samples were RIBA-positive without detectable HCV RNA. For these samples, the 10 anti-HCV immunoassays gave discordant and unsatisfactory results (detection rate ranging from 10·64 to 34·04%; ratio per 100 000 donations ranging from 5·97 to 8·09). Compared with a single anti-HCV screening assay, the two-assay combination increased the detection of these samples. The five best combinations [Sorin and Lizhu enzyme immunoassays (EIAs), Ortho and Lizhu EIAs, Sorin and Wantai EIAs, Sorin EIA and Roche CIA and Ortho and Wantai EIAs] increased the detection rate from 46·81 to 55·57%, thus reducing the ratio per 100 000 donations of HCV-seropositive samples. CONCLUSION The combination of two anti-HCV screening immunoassays in parallel with an HCV NAT is a better strategy for HCV detection in blood centres to improve the safety of blood transfusion.
Collapse
|
143
|
Lin G, Shi X, Chen S, Lei L, You X, Huang M, Luo L, Li Y, Zhao X, Yan F. Effects of micro-amounts of Porphyromonas gingivalis
lipopolysaccharide on rabbit inflammatory immune response and development of atherosclerosis. J Periodontal Res 2014; 50:356-62. [PMID: 25065326 DOI: 10.1111/jre.12214] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/08/2014] [Indexed: 11/29/2022]
|
144
|
Lin G, Hill DK, Andrejeva G, Boult JKR, Troy H, Fong ACLFWT, Orton MR, Panek R, Parkes HG, Jafar M, Koh DM, Robinson SP, Judson IR, Griffiths JR, Leach MO, Eykyn TR, Chung YL. Dichloroacetate induces autophagy in colorectal cancer cells and tumours. Br J Cancer 2014; 111:375-85. [PMID: 24892448 PMCID: PMC4102941 DOI: 10.1038/bjc.2014.281] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 04/22/2014] [Accepted: 04/30/2014] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Dichloroacetate (DCA) has been found to have antitumour properties. METHODS We investigated the cellular and metabolic responses to DCA treatment and recovery in human colorectal (HT29, HCT116 WT and HCT116 Bax-ko), prostate carcinoma cells (PC3) and HT29 xenografts by flow cytometry, western blotting, electron microscopy, (1)H and hyperpolarised (13)C-magnetic resonance spectroscopy. RESULTS Increased expression of the autophagy markers LC3B II was observed following DCA treatment both in vitro and in vivo. We observed increased production of reactive oxygen species (ROS) and mTOR inhibition (decreased pS6 ribosomal protein and p4E-BP1 expression) as well as increased expression of MCT1 following DCA treatment. Steady-state lactate excretion and the apparent hyperpolarised [1-(13)C] pyruvate-to-lactate exchange rate (k(PL)) were decreased in DCA-treated cells, along with increased NAD(+)/NADH ratios and NAD(+). Steady-state lactate excretion and k(PL) returned to, or exceeded, control levels in cells recovered from DCA treatment, accompanied by increased NAD(+) and NADH. Reduced k(PL) with DCA treatment was found in HT29 tumour xenografts in vivo. CONCLUSIONS DCA induces autophagy in cancer cells accompanied by ROS production and mTOR inhibition, reduced lactate excretion, reduced k(PL) and increased NAD(+)/NADH ratio. The observed cellular and metabolic changes recover on cessation of treatment.
Collapse
|
145
|
Zhao J, Lin G, Zhang WH, Ge M, Zhang Y. Contribution of CD14-159C/T polymorphism to tuberculosis susceptibility: a meta-analysis. Int J Tuberc Lung Dis 2014; 17:1472-8. [PMID: 24125453 DOI: 10.5588/ijtld.13.0264] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND CD14 plays an important role in recognising the tuberculosis (TB) antigen and initiating immune response. CD14-159C/T polymorphism has been reported to be associated with susceptibility to TB in some, but not all studies. OBJECTIVE To comprehensively evaluate the correlation between CD14-159C/T polymorphism and susceptibility to TB. METHODS Relevant studies from six English-language databases were searched up to 15 March 2013. Crude odd ratios (ORs) with 95% confidence interval (CIs) were calculated to assess the strength of associations. RESULTS Eight eligible studies including 3583 subjects were retained for the meta-analysis. T-allele and TT homozygosis might increase TB risk in the overall analysis (T vs. C: OR 1.30, 95%CI 1.03-1.64, P = 0.03 and TT vs. CC+CT: OR 1.52, 95%CI 1.12-2.08, P = 0.01). Similar correlations were observed among human immunodeficiency virus negative subjects. Strong associations were also found between CD14-159C/T and TB in Asians. Asian individuals with the T-allele and the TT genotype had a significantly increased risk of TB (T vs. C: OR 1.46, 95%CI 1.27-1.68, P = 0.00; TT vs. CC: OR 1.83, 95%CI 1.38-2.44, P = 0.00 and TT vs. CC+CT: OR 1.84, 95%CI 1.55-2.19, P = 0.00). No associations were detected in the pulmonary TB and extra-pulmonary TB groups. CONCLUSION CD14-159C/T contributes to TB susceptibility; the T-allele and TT homozygosis are potential risk factors, particularly in Asians.
Collapse
|
146
|
Xiong B, Tan K, Tan YQ, Gong F, Zhang SP, Lu CF, Luo KL, Lu GX, Lin G. Using SNP array to identify aneuploidy and segmental imbalance in translocation carriers. GENOMICS DATA 2014; 2:92-5. [PMID: 26484079 PMCID: PMC4535754 DOI: 10.1016/j.gdata.2014.05.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 05/14/2014] [Accepted: 05/15/2014] [Indexed: 11/06/2022]
Abstract
Translocation is one of the more common structural rearrangements of chromosomes, with a prevalence of 0.2%. The two most common types of chromosomal translocations, Robertsonian and reciprocal, usually result in no obvious phenotypic abnormalities when balanced. However, these are still associated with reproductive risks, such as infertility, spontaneous abortion and the delivery of babies with mental retardation or developmental delay. In recent years, array-based whole-genome amplification (WGA) technologies, including microarray comparative genomic hybridization (array CGH; aCGH) and single-nucleotide polymorphism (SNP) micro-arrays, have enabled the screening of every chromosome for whole-chromosome aneuploidy and segmental imbalance. These techniques have been shown to have clinical application for translocation carriers. Promising studies have indicated that array-based PGD of translocation carriers can lead to transfer pregnancy rates of 45–70% [2]. In addition to genetic testing techniques, the embryo biopsy stage (polar body, cleavage embryo or blastocyst) and the mode of embryo transfer (fresh or frozen embryos) can affect the outcome of PGD. It is now generally recommended that blastomere biopsy should be replaced by blastocyst biopsy to avoid a high mosaic rate and biopsy-related damage to cleavage-stage embryos, which might affect embryo development. However, more clinical data are required to confirm that the technique of SNP array-based PGD (SNP-PGD) combined with trophectoderm (TE) biopsy and frozen embryo transfer (FET) is superior to traditional FISH-PGD combined with Day 3 (D3) blastomere biopsy and fresh embryo transfer.
Collapse
|
147
|
Lin G, Baraban L, Han L, Karnaushenko D, Makarov D, Cuniberti G, Schmidt OG. Magnetoresistive emulsion analyzer. Sci Rep 2014; 3:2548. [PMID: 23989504 PMCID: PMC3757360 DOI: 10.1038/srep02548] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Accepted: 08/06/2013] [Indexed: 12/04/2022] Open
Abstract
We realize a magnetoresistive emulsion analyzer capable of detection, multiparametric analysis and sorting of ferrofluid-containing nanoliter-droplets. The operation of the device in a cytometric mode provides high throughput and quantitative information about the dimensions and magnetic content of the emulsion. Our method offers important complementarity to conventional optical approaches involving ferrofluids, and paves the way to the development of novel compact tools for diagnostics and nanomedicine including drug design and screening.
Collapse
|
148
|
Dang Y, Lin G, Xie Y, Duan J, Ma P, Li G, Ji G. Quantitative Determination of Myricetin in Rat Plasma by Ultra Performance Liquid Chromatography Tandem Mass Spectrometry and its Absolute Bioavailability. Drug Res (Stuttg) 2013; 64:516-22. [DOI: 10.1055/s-0033-1363220] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
149
|
Ferretti L, Qiu X, Villalta J, Lin G. Comparaison de l’efficacité de différentes compresses hémostatiques sur un model de néphrectomie partielle et de plaie aortique chez le rat. Prog Urol 2013. [DOI: 10.1016/j.purol.2013.08.199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
150
|
Li J, Lin G, Zhang B, Zhong Y, Chen X, Zhuang G. Pregnancy prediction by beta-human chorionic gonadotropin in spent embryo culture media in single blastocyst transfer cycles. Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.1181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|