26
|
Chalela P, Munoz E, Inupakutika D, Kaghyan S, Akopian D, Kaklamani V, Lathrop K, Ramirez A. Corrigendum to "Improving adherence to endocrine hormonal therapy among breast cancer patients: Study protocol for a randomized controlled trial" [Contemp. Clin. Trials Commun. 12 (2018) 109-115]. Contemp Clin Trials Commun 2019; 14:100349. [PMID: 31049460 DOI: 10.1016/j.conctc.2019.100349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
[This corrects the article DOI: 10.1016/j.conctc.2018.10.001.].
Collapse
|
27
|
Ramirez A, Hueso JL, Abian M, Alzueta MU, Mallada R, Santamaria J. Escaping undesired gas-phase chemistry: Microwave-driven selectivity enhancement in heterogeneous catalytic reactors. SCIENCE ADVANCES 2019; 5:eaau9000. [PMID: 30899784 PMCID: PMC6420312 DOI: 10.1126/sciadv.aau9000] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 01/30/2019] [Indexed: 06/09/2023]
Abstract
Research in solid-gas heterogeneous catalytic processes is typically aimed toward optimization of catalyst composition to achieve a higher conversion and, especially, a higher selectivity. However, even with the most selective catalysts, an upper limit is found: Above a certain temperature, gas-phase reactions become important and their effects cannot be neglected. Here, we apply a microwave field to a catalyst-support ensemble capable of direct microwave heating (MWH). We have taken extra precautions to ensure that (i) the solid phase is free from significant hot spots and (ii) an accurate estimation of both solid and gas temperatures is obtained. MWH allows operating with a catalyst that is significantly hotter than the surrounding gas, achieving a high conversion on the catalyst while reducing undesired homogeneous reactions. We demonstrate the concept with the CO2-mediated oxidative dehydrogenation of isobutane, but it can be applied to any system with significant undesired homogeneous contributions.
Collapse
|
28
|
Liu MC, Sun Y, Ramirez A, Campton D, George T, Haselkorn KE, Clein A, Gadi V, Sabath D, Kaldjian E. Abstract P3-01-11: A novel six-parameter assay for comprehensive phenotyping of circulating tumor cells. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p3-01-11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background. The presence and number of circulating tumor cells (CTCs) are prognostic for breast cancer treatment outcome. Direct imaging assays traditionally employ four markers to identify canonical epithelial CTCs: nucleus, exclusion (CD45), and inclusion (EpCAM and cytokeratin). There is intense interest in the ability to phenotype CTCs in order to provide a noninvasive means by which to predict treatment benefit from endocrine therapy and/or HER2-directed therapy in breast cancer. To address this, a 6-parameter assay for detection of ER and HER2 expression on CTCs was developed. We applied this assay to four well characterized breast cancer cell lines representative of various ER and HER2 phenotypes. Methods. BT474, MCF-7, SKBR3, or MDA-MB-231 cells were spiked into peripheral blood from healthy donors and processed using the AccuCyte® sample preparation system; nucleated cells, including CTCs, are captured onto glass slides (8 slides per 7.5 mL blood sample) for subsequent immunofluorescent staining. Slides were stained using the combined epithelial marker and ER/HER2 CTC assay and then analyzed with the CyteFinder® imaging system. CTCs were identified as nucleated cells with positive EpCAM and/or cytokeratin staining, and negative CD45 staining. ER and HER2 expression were assessed as present or absent. Results. All cell lines expressed both cytokeratin and EpCAM, except for MDA-MB-231 which was EpCAM-negative. The ER / HER2 expression patterns observed were consistent with reported phenotype: BT474 (+/+), MCF-7 (+/–), SKBR3 (–/+), and MDA-MB-231 (–/–). Conclusions. Identification of epithelial CTCs and phenotypic characterization of ER and HER2 status are feasible in a combined assay applied to a single blood sample. This approach has implications for efficiency and cost effectiveness, which are of particular importance given the interest in longitudinal testing. Assay evaluation is currently underway using blood samples from breast cancer patients with known receptor status, treatment history, and clinical outcomes. Results will be available for presentation at the meeting.
Citation Format: Liu MC, Sun Y, Ramirez A, Campton D, George T, Haselkorn KE, Clein A, Gadi V, Sabath D, Kaldjian E. A novel six-parameter assay for comprehensive phenotyping of circulating tumor cells [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P3-01-11.
Collapse
|
29
|
Chalela P, Munoz E, Inupakutika D, Kaghyan S, Akopian D, Kaklamani V, Lathrop K, Ramirez A. Improving adherence to endocrine hormonal therapy among breast cancer patients: Study protocol for a randomized controlled trial. Contemp Clin Trials Commun 2018; 12:109-115. [PMID: 30377674 PMCID: PMC6202663 DOI: 10.1016/j.conctc.2018.10.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 09/20/2018] [Accepted: 10/16/2018] [Indexed: 11/18/2022] Open
Abstract
Adjuvant endocrine hormonal therapy (EHT) is highly effective and appropriate for nearly all breast cancer patients with hormone receptor-positive tumors, which represent 75% of all breast cancer diagnoses. Long-term use of EHT reduces recurrence rates and nearly halves the risk of death during the second decade after diagnosis. Despite the proven benefits, about 33% of women receiving EHT do not take their medication as prescribed. This causes an increase in the risk for recurrence and death. To promote adherence to EHT among breast cancer patients, this study will develop and pilot-test an intervention consisting of 1) a bilingual, culturally tailored, personalized, interactive smartphone application (app); and 2) support from a patient navigator. The control group will receive usual care. This 2-group randomized control trial will recruit 120 breast cancer patients receiving EHT at the Mays Cancer Center at UT Health San Antonio. The two-year study will have 3-time assessments (baseline, 3 and 6 months). This theory-based intervention will empower patients' self-monitoring and management. It will facilitate patient education, identification/reporting of side effects, delivery of self-care advice, and simplify communication between the patient and the oncology team. The ultimate goal of this innovative multi-communication intervention is to improve overall survival and life expectancy, enhance quality of life, reduce recurrence, and decrease healthcare cost. The anticipated outcome is a scalable, evidence-based, and easily disseminated intervention with potentially broad use to patients using EHT and other oral anticancer agents.
Collapse
|
30
|
Ramirez A, Marrero K, Rodriguez M. B - 59Executive Functioning Deficits Among Juvenile Sex Offenders: A Systematic Literature Review. Arch Clin Neuropsychol 2018. [DOI: 10.1093/arclin/acy061.135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
31
|
Howsare M, Nunley D, Van Berkel V, Ramirez A. An Under-Recognized Cause of Malnutrition After Lung Transplant. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.339] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
32
|
Canning P, Bates J, Skoland K, Coetzee J, Wulf L, Rajewski S, Wang C, Gauger P, Ramirez A, Karriker L. Variation in water disappearance, daily dose, and synovial fluid concentrations of tylvalosin and 3-O-acetyltylosin in commerical pigs during five day water medication with tylvalosin under field conditions. J Vet Pharmacol Ther 2018; 41:632-636. [PMID: 29572923 DOI: 10.1111/jvp.12503] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 02/25/2018] [Indexed: 11/29/2022]
Abstract
Tylvalosin (TVN) is a water soluble macrolide used in swine production to treat enteric, respiratory, and arthritic pathogens. There is limited data on its distribution to synovial fluid beyond gavage studies, which do not represent field conditions. This study measured water disappearance, TVN concentration in the medicated water, daily dose, and concentrations of TVN and 3-O-acetyltylosin (3AT) in the synovial fluid and plasma of treated pigs over the administration period. The study emphasized understanding variation in tissue TVN concentrations within the context of a field setting. Sixty finisher pigs were housed individually with individual waterers. Six pigs were randomly allocated to the following time points for sample collection: 0, 48, 60, 72, 84, 96, 102, 108, 114, and 120 hr on medication. TVN was administered daily in the water for 5 days. Water disappearance and medicated water concentration were measured daily. At each time point, six pigs were euthanized and plasma and synovial fluid were collected for analysis. Median TVN synovial fluid concentrations ranged between <1 ng/ml (hour 0) to 3.6 ng/ml (hour 84). There was substantial variation between individual pigs for water disappearance (mean 4.36L and range 0-7.84). Median TVN water concentration was 59 ppm (range 38-75 ppm).
Collapse
|
33
|
Cassar S, Hodgkiss A, Ramirez A, Williams D. Mental health presentations to an inner-city accident and emergency department. PSYCHIATRIC BULLETIN 2018. [DOI: 10.1192/pb.26.4.134] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
AIMS AND METHODTo study the presentation, assessment and management of all patients attending St Thomas' accident and emergency (A&E) department with overt mental health problems. The method included a pragmatic definition of ‘overt mental health problems' and a range of strategies to maximise case ascertainment.RESULTSThe department saw 565 presentations in a 3-month period. Patients were predominantly young, male, single, unemployed, housed outside the area served by the local primary care group and presented outside normal working hours.CLINICAL IMPLICATIONSThis study confirms that A&E departments may be the most frequently used setting for urgent mental health assessments in central London. The patients attending differ from those using community mental health teams. It is argued that mental health liaison services based in inner-city A&E departments should be developed.
Collapse
|
34
|
Moncada PM, Brashears M, Echeverry A, Miller M, Casas D, Ramirez A, Inestroza B. Variation of Antimicrobial Resistance Patterns of Salmonella Isolated From Honduran Meat and Poultry Products. MEAT AND MUSCLE BIOLOGY 2018. [DOI: 10.22175/rmc2018.133] [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] Open
|
35
|
Boilson AM, Staines A, Ramirez A, Posada M, Sweeney MR. Operationalisation of the European Protocol for Autism Prevalence (EPAP) for Autism Spectrum Disorder Prevalence Measurement in Ireland. J Autism Dev Disord 2017; 46:3054-67. [PMID: 27364514 DOI: 10.1007/s10803-016-2837-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The European Autism Information System project highlighted the lack of systematic and reliable data relating to the prevalence of autism spectrum disorders in Europe. A protocol for the study of ASD prevalence at European level was developed to facilitate a common format for screening and diagnosing children across the EU. This is the first study to operationalise and screen national school children for ASDs using this protocol. National school children 6-11 years (N = 7951) were screened males 54 % (N = 4268) females 46 % (N = 3683). Screening children for ASD implementing the EAIS protocol using the Social Communication Questionnaire (Rutter et al. in Social Communication Questionnaire (SCQ). Western Psychological Services, Los Angeles, ) as a first level screening instrument in a non-clinical setting of Irish national schools was demonstrated.
Collapse
|
36
|
Karaca I, Wagner H, Ramirez A. Suche nach Risikogenen bei der Alzheimer-Erkrankung. DER NERVENARZT 2017; 88:744-750. [DOI: 10.1007/s00115-017-0354-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
37
|
Schweer WP, Patience JF, Schwartz K, Linhares D, Rademacher C, Allen HK, Loving CL, Ramirez A, Gabler NK. 305 A review and evaluation of antibiotic alternatives in the literature. J Anim Sci 2017. [DOI: 10.2527/asasmw.2017.305] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
38
|
Gebhardt JT, Woodworth JC, Jones CK, Tokach MD, DeRouchey JM, Goodband RD, Bergstrom JR, Bai JF, Chen Q, Zhang J, Gauger PC, Derscheid RJ, Magstadt DR, Arruda PH, Ramirez A, Main RG, Dritz SS. 100 Evaluating the efficacy of commercial feed additives as potential porcine epidemic diarrhea virus (PEDV) mitigation strategies in complete feed and spray-dried porcine plasma as determined by polymerase chain reaction analysis and bioassay. J Anim Sci 2017. [DOI: 10.2527/asasmw.2017.100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
39
|
Mumm JM, Stock JD, Stalder KJ, Johnson AK, Ramirez A, Azarpajouh S, Diaz JAC. 014 Dynamic space requirements of lame and non-lame sows determined by the lying-standing sequence. J Anim Sci 2017. [DOI: 10.2527/asasmw.2017.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
40
|
Agullo C, Marques H, Sena O, Valles M, Ramirez A. Aesthetic in anterior teeth: Multidisciplinary treatment. J Clin Exp Dent 2017. [DOI: 10.4317/medoral.176438758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
|
41
|
Ramirez A, Sánchez MX, Brashears M. Validation of Organic Acid Interventions in Chicken Thighs to Reduce Salmonella under Simulated Commercial Processing Conditions. MEAT AND MUSCLE BIOLOGY 2017. [DOI: 10.22175/rmc2016.123] [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] Open
|
42
|
Irazusta S, Ramirez A, Valles M. Universal adhesives. A literatura review. J Clin Exp Dent 2017. [DOI: 10.4317/medoral.176438706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
|
43
|
Yeh C, Kourosh A, Ongkasuwan J, Ramirez A, Bashir D, Hanson I. P098 When post-operative orofacial angioedema is not ige or complement-mediated? Ann Allergy Asthma Immunol 2016. [DOI: 10.1016/j.anai.2016.09.107] [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]
|
44
|
McGee M, Parsons RL, O'Connor AM, Johnson AK, Anthony R, Ramirez A, Millman ST. 0069 A preliminary examination of swine caretakers' perspectives for euthanasia technology and training. J Anim Sci 2016. [DOI: 10.2527/jam2016-0069] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
45
|
Amaddeo A, Moreau J, Frapin A, Khirani S, Felix O, Fernandez-Bolanos M, Ramirez A, Fauroux B. Long term continuous positive airway pressure (CPAP) and noninvasive ventilation (NIV) in children: Initiation criteria in real life. Pediatr Pulmonol 2016; 51:968-74. [PMID: 27111113 DOI: 10.1002/ppul.23416] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 02/09/2016] [Accepted: 02/11/2016] [Indexed: 11/10/2022]
Abstract
INTRODUCTION Long term noninvasive continuous positive airway pressure (CPAP) and noninvasive ventilation (NIV) are increasingly used in children but limited information is available on the criteria and conditions leading to the initiation of these treatments. The aim of the study is to describe the objective overnight respiratory parameters and clinical situations that led to the initiation of CPAP/NIV in a pediatric NIV unit. MATERIAL AND METHODS Retrospective analysis of the data of all the children discharged on home CPAP/NIV over a 1 year period. RESULTS Seventy-six patients were started on CPAP (n = 64) or NIV (n = 12). CPAP/NIV was initiated because of CPAP/NIV weaning failure (Acute group) in 15 patients. None of these patients had an overnight gas exchange or sleep study before CPAP/NIV initiation. In 18 patients, CPAP/NIV was initiated on abnormal nocturnal gas exchange alone (Subacute group). These patients had a median of three of the following five overnight gas exchange abnormalities: minimal pulse oximetry (SpO2 ) <90%, maximal transcutaneous carbon dioxide (PtcCO2 ) >50 mmHg, time spent with SpO2 <90% or PtcCO2 >50 mmHg ≥2% of recording time, oxygen desaturation index >1.4/hr. In the last 43 patients, CPAP/NIV was initiated after an abnormal sleep study (Chronic group) on a mean of four of the aforementioned criteria and an apnea-hypopnea index >10/hr. CONCLUSION In clinical practice, CPAP/NIV was initiated in an acute, subacute and chronic setting with most patients having an association of several abnormal gas exchange or sleep study parameters. Future studies should evaluate the effectiveness and benefits of CPAP/NIV according to the clinical situation and initiation criteria. Pediatr Pulmonol. 2016; 51:968-974. © 2016 Wiley Periodicals, Inc.
Collapse
|
46
|
Zhang X, Ling Y, Guo Y, Bai Y, Shi X, Gong F, Tan P, Zhang Y, Wei C, He X, Ramirez A, Liu X, Cao C, Zhong H, Xu Q, Ma RZ. Mps1 kinase regulates tumor cell viability via its novel role in mitochondria. Cell Death Dis 2016; 7:e2292. [PMID: 27383047 PMCID: PMC4973343 DOI: 10.1038/cddis.2016.193] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 06/01/2016] [Accepted: 06/03/2016] [Indexed: 12/22/2022]
Abstract
Targeting mitotic kinase monopolar spindle 1 (Mps1) for tumor therapy has been investigated for many years. Although it was suggested that Mps1 regulates cell viability through its role in spindle assembly checkpoint (SAC), the underlying mechanism remains less defined. In an endeavor to reveal the role of high levels of mitotic kinase Mps1 in the development of colon cancer, we unexpectedly found the amount of Mps1 required for cell survival far exceeds that of maintaining SAC in aneuploid cell lines. This suggests that other functions of Mps1 besides SAC are also employed to maintain cell viability. Mps1 regulates cell viability independent of its role in cytokinesis as the genetic depletion of Mps1 spanning from metaphase to cytokinesis affects neither cytokinesis nor cell viability. Furthermore, we developed a single-cycle inhibition strategy that allows disruption of Mps1 function only in mitosis. Using this strategy, we found the functions of Mps1 in mitosis are vital for cell viability as short-term treatment of mitotic colon cancer cell lines with Mps1 inhibitors is sufficient to cause cell death. Interestingly, Mps1 inhibitors synergize with microtubule depolymerizing drug in promoting polyploidization but not in tumor cell growth inhibition. Finally, we found that Mps1 can be recruited to mitochondria by binding to voltage-dependent anion channel 1 (VDAC1) via its C-terminal fragment. This interaction is essential for cell viability as Mps1 mutant defective for interaction fails to main cell viability, causing the release of cytochrome c. Meanwhile, deprivation of VDAC1 can make tumor cells refractory to loss of Mps1-induced cell death. Collectively, we conclude that inhibition of the novel mitochondrial function Mps1 is sufficient to kill tumor cells.
Collapse
|
47
|
Kortbeek RWJ, Xu J, Ramirez A, Spyropoulou E, Diergaarde P, Otten-Bruggeman I, de Both M, Nagel R, Schmidt A, Schuurink RC, Bleeker PM. Engineering of Tomato Glandular Trichomes for the Production of Specialized Metabolites. Methods Enzymol 2016; 576:305-31. [PMID: 27480691 DOI: 10.1016/bs.mie.2016.02.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Glandular trichomes are specialized tissues on the epidermis of many plant species. On tomato they synthesize, store, and emit a variety of metabolites such as terpenoids, which play a role in the interaction with insects. Glandular trichomes are excellent tissues for studying the biosynthesis of specialized plant metabolites and are especially suitable targets for metabolic engineering. Here we describe the strategy for engineering tomato glandular trichomes, first with a transient expression system to provide proof of trichome specificity of selected promoters. Using microparticle bombardment, the trichome specificity of a terpene-synthase promoter could be validated in a relatively fast way. Second, we describe a method for stable expression of genes of interest in trichomes. Trichome-specific expression of another terpene-synthase promoter driving the yellow-fluorescence protein-gene is presented. Finally, we describe a case of the overexpression of farnesyl diphosphate synthase (FPS), specifically in tomato glandular trichomes, providing an important precursor in the biosynthetic pathway of sesquiterpenoids. FPS was targeted to the plastid aiming to engineer sesquiterpenoid production, but interestingly leading to a loss of monoterpenoid production in the transgenic tomato trichomes. With this example we show that trichomes are amenable to engineering though, even with knowledge of a biochemical pathway, the result of such engineering can be unexpected.
Collapse
|
48
|
Nizzardo M, Simone C, Rizzo F, Ulzi G, Ramirez A, Rizzuti M, Bordoni A, Bucchia M, Gatti S, Bresolin N, Comi GP, Corti S. Morpholino-mediated SOD1 reduction ameliorates an amyotrophic lateral sclerosis disease phenotype. Sci Rep 2016; 6:21301. [PMID: 26878886 PMCID: PMC4754711 DOI: 10.1038/srep21301] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 01/21/2016] [Indexed: 01/07/2023] Open
Abstract
Neurotoxicity due to the accumulation of mutant proteins is thought to drive pathogenesis in neurodegenerative diseases. Mutations in superoxide dismutase 1 (SOD1) are linked to familial amyotrophic lateral sclerosis (fALS); these mutations result in progressive motor neuron death through one or more acquired toxicities. Interestingly, SOD1 is not only responsible for fALS but may also play a significant role in sporadic ALS; therefore, SOD1 represents a promising therapeutic target. Here, we report slowed disease progression, improved neuromuscular function, and increased survival in an in vivo ALS model following therapeutic delivery of morpholino oligonucleotides (MOs) designed to reduce the synthesis of human SOD1. Neuropathological analysis demonstrated increased motor neuron and axon numbers and a remarkable reduction in astrogliosis and microgliosis. To test this strategy in a human model, we treated human fALS induced pluripotent stem cell (iPSC)-derived motor neurons with MOs; these cells exhibited increased survival and reduced expression of apoptotic markers. Our data demonstrated the efficacy of MO-mediated therapy in mouse and human ALS models, setting the stage for human clinical trials.
Collapse
|
49
|
Gil K, Gil J, Cruz B, Ramirez A, Medina M, Torres J. Experimental set up of a magnetoelectric measuring system operating at different temperatures. ACTA ACUST UNITED AC 2016. [DOI: 10.1088/1742-6596/687/1/012090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
50
|
Inestroza B, Ramirez A, Sanchez-Plata M, Parks A, Echeverry A, Brashears M. Thermal inactivation of Salmonella spp. in high fat ground beef. Meat Sci 2016. [DOI: 10.1016/j.meatsci.2015.08.147] [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]
|