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Analytical validation of HER2DX genomic test for early-stage HER2-positive breast cancer. ESMO Open 2024; 9:102903. [PMID: 38452436 PMCID: PMC10937240 DOI: 10.1016/j.esmoop.2024.102903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 02/01/2024] [Accepted: 02/02/2024] [Indexed: 03/09/2024] Open
Abstract
BACKGROUND HER2DX, a multianalyte genomic test, has been clinically validated to predict breast cancer recurrence risk (relapse risk score), the probability of achieving pathological complete response post-neoadjuvant therapy (pCR likelihood score), and individual ERBB2 messenger RNA (mRNA) expression levels in patients with early-stage human epidermal growth factor receptor 2 (HER2)-positive breast cancer. This study delves into the comprehensive analysis of HER2DX's analytical performance. MATERIALS AND METHODS Precision and reproducibility of HER2DX risk, pCR, and ERBB2 mRNA scores were assessed within and between laboratories using formalin-fixed paraffin-embedded (FFPE) tumor tissues and purified RNA. Robustness was appraised by analyzing the impact of tumor cell content and protocol variations including different instruments, reagent lots, and different RNA extraction kits. Variability was evaluated across intratumor biopsies and genomic platforms [RNA sequencing (RNAseq) versus nCounter], and according to protocol variations. RESULTS Precision analysis of 10 FFPE tumor samples yielded a maximal standard error of 0.94 across HER2DX scores (1-99 scale). High reproducibility of HER2DX scores across 29 FFPE tumors and 20 RNAs between laboratories was evident (correlation coefficients >0.98). The probability of identifying score differences >5 units was ≤5.2%. No significant variability emerged based on platform instruments, reagent lots, RNA extraction kits, or TagSet thaw/freeze cycles. Moreover, HER2DX displayed robustness at low tumor cell content (10%). Intratumor variability across 212 biopsies (106 tumors) was <4.0%. Concordance between HER2DX scores from 30 RNAs on RNAseq and nCounter platforms exceeded 90.0% (Cohen's κ coefficients >0.80). CONCLUSIONS The HER2DX assay is highly reproducible and robust for the quantification of recurrence risk, pCR likelihood, and ERBB2 mRNA expression in early-stage HER2-positive breast cancer.
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Achievement of Target Gain Larger than Unity in an Inertial Fusion Experiment. PHYSICAL REVIEW LETTERS 2024; 132:065102. [PMID: 38394591 DOI: 10.1103/physrevlett.132.065102] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/03/2024] [Indexed: 02/25/2024]
Abstract
On December 5, 2022, an indirect drive fusion implosion on the National Ignition Facility (NIF) achieved a target gain G_{target} of 1.5. This is the first laboratory demonstration of exceeding "scientific breakeven" (or G_{target}>1) where 2.05 MJ of 351 nm laser light produced 3.1 MJ of total fusion yield, a result which significantly exceeds the Lawson criterion for fusion ignition as reported in a previous NIF implosion [H. Abu-Shawareb et al. (Indirect Drive ICF Collaboration), Phys. Rev. Lett. 129, 075001 (2022)PRLTAO0031-900710.1103/PhysRevLett.129.075001]. This achievement is the culmination of more than five decades of research and gives proof that laboratory fusion, based on fundamental physics principles, is possible. This Letter reports on the target, laser, design, and experimental advancements that led to this result.
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Molecular Mechanisms of Intratumoral Nerve Recruitment and Perineural Invasion Elucidated with Spatial Transcriptomics and CRISPR Activation. Int J Radiat Oncol Biol Phys 2023; 117:S21. [PMID: 37784453 DOI: 10.1016/j.ijrobp.2023.06.244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Perineural invasion (PNI) is an aggressive manifestation of tumor-nerve interactions associated with postoperative recurrence, metastasis, pain, and decreased survival. Hence, PNI is included in the staging criteria of several malignancies and often an indication for treatment intensification using adjuvant radiotherapy. However, the diverse molecular mechanisms underlying tumor-nerve crosstalk remain largely unknown-hindering the development of new therapies targeting this key pathological process. Moreover, prior studies were limited by a lack of cell-type information, spatial context, and/or a fragmented focus on a small number of pathways. MATERIALS/METHODS Using pancreatic ductal adenocarcinoma (PDAC) as an exemplar given the exceptionally high frequency of PNI in this malignancy, we performed the first comprehensive, cell-type specific, and spatially resolved whole-transcriptome analysis of human PDAC to identify molecular mediators of tumor-nerve crosstalk and PNI. We constructed 12 custom tissue microarrays (TMAs) derived from matched malignant regions with and without tumor-nerve proximity (n = 288 cores). We performed whole-transcriptome digital spatial profiling (DSP) to independently determine mRNA abundance from the malignant, fibroblast, and nerve compartments through optical sectioning. RESULTS We mapped malignant subtypes we previously identified onto the spatial data and found strong (p<0.0001) positive nerve associations with the mesenchymal, basaloid, and neural-like progenitor subtypes and a negative nerve association with the classical subtype. Numerous genes expressed by malignant cells were enriched (e.g., MMP2, PLXND1, NRP1) or depleted (e.g., SEMA3B) in association with radial distance from nerves, including recapitulation of prior literature. To functionally explore these candidate mediators of tumor-nerve crosstalk, we derived genetically-engineered murine organoids (KrasLSL-G12D/+; Trp53FL/FL; Rosa26-dCas9-VPR) and transduced them with guide RNAs to overexpress subtype-specific transcription factors or candidate genes from the spatial analysis. We quantified (1) cancer cell invasion through extracellular matrix using cultured dorsal root ganglia (DRG) sensory neurons as the chemoattractant, and (2) the role of cancer-intrinsic signaling on nerve recruitment/outgrowth by applying conditioned media or exogenous proteins to cultured DRG sensory neurons and tracking their growth with live imaging. CONCLUSION Our results suggest that the mechanisms enabling cancer cells to recruit nerves into the tumor microenvironment are distinct from those facilitating perineural invasion. This study has transformed our understanding of how cancer cells and the peripheral nervous system collaborate to promote tumor growth, survival, and dissemination, and is now guiding prioritization of therapeutic strategies that synergize with adjuvant radiotherapy in the burgeoning field of cancer neuroscience.
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Carbon molecular sieve membranes for water separation in CO2 hydrogenation reactions: Effect of the carbonization temperature. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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5
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Using Household Expenditure Surveys for Comparable and Replicable Nutritional Analysis: Evidence from México. Nutrients 2022; 14:nu14173588. [PMID: 36079845 PMCID: PMC9460767 DOI: 10.3390/nu14173588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 08/12/2022] [Accepted: 08/24/2022] [Indexed: 11/17/2022] Open
Abstract
In this study, we explore how to use household expenditures and income surveys (HEIS) to provide replicable and comparable measures of nutrients availability at the population level. Our method formalizes the common practice in the literature and consists of three steps: identification of relevant food categories, pairing of food contents food groups in HEIS data, and calculation of the typical amount of nutrients by food group. We illustrate the usage of the method with Mexican data and provide a publicly available data set to readily convert food purchases into six nutrients: calories, proteins, vitamins A and C, iron, and zinc. We perform a descriptive analysis of the evolution of nutrients intake among Mexican households between 2008 and 2020, considering differences by income level. Our results reflect the effect of the COVID-19 pandemic on nutrient availability in Mexican households, mainly driven by a substantial reduction in the expenditure in food consumed away from home, although for most nutrients the trend was stable over most of the period.
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Lawson Criterion for Ignition Exceeded in an Inertial Fusion Experiment. PHYSICAL REVIEW LETTERS 2022; 129:075001. [PMID: 36018710 DOI: 10.1103/physrevlett.129.075001] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 06/24/2022] [Accepted: 07/06/2022] [Indexed: 06/15/2023]
Abstract
For more than half a century, researchers around the world have been engaged in attempts to achieve fusion ignition as a proof of principle of various fusion concepts. Following the Lawson criterion, an ignited plasma is one where the fusion heating power is high enough to overcome all the physical processes that cool the fusion plasma, creating a positive thermodynamic feedback loop with rapidly increasing temperature. In inertially confined fusion, ignition is a state where the fusion plasma can begin "burn propagation" into surrounding cold fuel, enabling the possibility of high energy gain. While "scientific breakeven" (i.e., unity target gain) has not yet been achieved (here target gain is 0.72, 1.37 MJ of fusion for 1.92 MJ of laser energy), this Letter reports the first controlled fusion experiment, using laser indirect drive, on the National Ignition Facility to produce capsule gain (here 5.8) and reach ignition by nine different formulations of the Lawson criterion.
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Tuning the catalytic acidity in Al 2O 3 nanofibers with mordenite nanocrystals for dehydration reactions. Catal Sci Technol 2022; 12:4243-4254. [PMID: 35873718 PMCID: PMC9252259 DOI: 10.1039/d2cy00143h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 05/10/2022] [Indexed: 11/21/2022]
Abstract
The chemical and structural properties of Al2O3 are tuned for dehydration reactions. The synergy between the structured Al2O3 shaped as nanofiber and the acid site nature of the zeolite mordenite in the nanofiber improves the dehydration reaction.
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Al2O3 nanofibers prepared from aluminum Di(sec-butoxide)acetoacetic ester chelate exhibits high surface area and acidity. J Catal 2022. [DOI: 10.1016/j.jcat.2021.11.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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9
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Seroconversion and Abundance of IgG Antibodies against S1-RBD of SARS-CoV-2 and Neutralizing Activity in the Chilean Population. J Immunol Res 2021; 2021:6680337. [PMID: 33644235 PMCID: PMC7901042 DOI: 10.1155/2021/6680337] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 01/03/2021] [Accepted: 01/24/2021] [Indexed: 01/08/2023] Open
Abstract
COVID-19 is a pandemic caused by SARS-CoV-2. In Chile, half a million people have been infected and more than 16,000 have died from COVID-19. As part of the clinical trial NCT04384588, we quantified IgG against S1-RBD of SARS-CoV-2 (anti-RBD) in recovered people in Santiago and evaluated their suitability as COVID-19 convalescent plasma donors. ELISA and a luminescent SARS-CoV-2 pseudotype were used for IgG and neutralizing antibody quantification. 72.9% of the convalescent population (468 of 639) showed seroconversion (5-55 μg/mL anti-RBD IgG) and were suitable candidates for plasma donation. Analysis by gender, age, and days after symptom offset did not show significant differences. Neutralizing activity correlated with an increased concentration of anti-RBD IgG (p < 0.0001) and showed a high variability between donors. We confirmed that the majority of the Chilean patients have developed anti-SARS-CoV-2 antibodies. The quantification of anti-RBD IgG in convalescent plasma donors is necessary to increase the detection of neutralizing antibodies.
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Pediatric Barcelona Olfactory Test ̶ 6 (pBOT-6): Validation of a Combined Odor Identification and Threshold Screening Test in Healthy Spanish Children and Adolescents. J Investig Allergol Clin Immunol 2020; 30:439-447. [DOI: 10.18176/jiaci.0451] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background: Few odor tests have been developed for children. Objectives: The aim of the present study was to develop and validate a simple and quick olfactory test to evaluate odor identification and threshold in a Spanish pediatric population. Methods: The Pediatric Barcelona Olfactory Test-6 (pBOT-6) consisted of a set of 6 odorants for a forced choice identification test and a 6-dilution phenyl ethyl alcohol geometric series for the threshold test. The pBOT-6 was compared with the Universal Sniff test (a validated international pediatric smell test) in 131 healthy Spanish volunteers aged 6-17 years. A Bland-Altman plot was used to determine the agreement between the 2 tests. Reliability was analyzed in 15 volunteers using the intraclass correlation coefficient. Normative data were obtained, and 8 children diagnosed with subjective loss of smell were tested for validation. Results: The Bland-Altman analysis demonstrated a minimal bias of –1.71% with upper and lower limits of agreement of –31.1% and 27.6%, respectively. The intraclass correlation coefficient was 0.83 (95%CI, 0.6-0.96) for the identification test and 0.73 (95%CI, 0.36-0.9) for the threshold test, with excellent and good consistency between measurements over time. Mean pBOT-6 scores were significantly higher in healthy volunteers than in patients with loss of smell. Discrimination between normosmia and loss of smell was achieved with a sensitivity of 96.9% and a specificity of 100%. Conclusions: pBOT-6 offers an effective and fast method that is useful in clinical routine to distinguish, with high sensitivity and specificity, between pediatric patients with normosmia and those with loss of smell.
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Synthetic lethal interaction between the ESCRT paralog enzymes VPS4A and VPS4B in cancers with chromosome 18q or 16q deletion. Eur J Cancer 2020. [DOI: 10.1016/s0959-8049(20)31088-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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12
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Atención integral del neonato con encefalopatía hipóxico-isquémica en España. An Pediatr (Barc) 2020; 92:286-296. [DOI: 10.1016/j.anpedi.2019.05.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/22/2019] [Accepted: 05/24/2019] [Indexed: 10/26/2022] Open
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11: A randomized control trial: comparing two positioning pads to prevent cephalad movement during robotic gynecologic surgery. Am J Obstet Gynecol 2019. [DOI: 10.1016/j.ajog.2019.01.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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14
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Techniques for Vaginal Cuff Closure in Robotic-Assisted Hysterectomy. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.429] [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]
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15
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Surgical Equipment Price Awareness Amongst Gynecologic Surgeons. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Care of the newborn with perinatal asphyxia candidate for therapeutic hypothermia during the first six hours of life in Spain. ANALES DE PEDIATRÍA (ENGLISH EDITION) 2018. [DOI: 10.1016/j.anpede.2017.11.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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Exploring the understanding of the term "ultra-processed foods" by young consumers. Food Res Int 2018; 115:535-540. [PMID: 30599975 DOI: 10.1016/j.foodres.2018.09.059] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 09/16/2018] [Accepted: 09/25/2018] [Indexed: 01/15/2023]
Abstract
Low diet quality has been associated with high consumption of highly processed foods. An effective educational campaign should aim at replacing ultra-processed foods by minimally processed and unprocessed foods. The objective of this study was to explore the understanding of young consumers of the term ultra-processed foods. A study was carried out with 181 young consumers from two different countries (Argentina and Ecuador). They were asked to explain what they understood by ultra-processed foods and to list foods they considered ultra-processed. Text and content analysis were conducted on participant's responses. Participants understand ultra-processed foods as those highly processed containing many artificial ingredients. The un-natural and unhealthful dimension was also stressed on their definitions. The most relevant food items that elicit the term ultra-processed foods were processed meats, soft drinks, and canned products. However, some food items not considered ultra-processed (meat, milk, ingredients) were misclassified as ultra-processed foods. This implies that a clear definition of the term ultra-processed food should be included in any strategy aimed at curbing today's high consumption of ultra-processed foods.
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Incidental Histopathologic Finding of Sinonasal Inverted Papilloma Among Surgically Excised Polyps Increases the Risk of Tumor Recurrence. Indian J Otolaryngol Head Neck Surg 2018; 71:1910-1917. [PMID: 31763267 DOI: 10.1007/s12070-018-1302-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Accepted: 03/12/2018] [Indexed: 12/19/2022] Open
Abstract
Inverted papilloma (IP) is a benign tumor remarkable for its tendency toward recurrence. Local relapse implicates incomplete resection concerning the bone adjacent to tumor base. The high false negative rates on biopsies, mainly when nasal polyps coexist, may affect the surgical management and outcomes. Our objective was to study the impact of preoperative histologic diagnosis in IP recurrence, particularly in patients with pre-surgical diagnosis of inflammatory polyps. A retrospective analysis of 62 patients treated for IP was conducted. Demographic data and information about smoking status, alcohol intake, tumor location, histology, presence of nasal polyps, staging, malignancy, previous biopsies and surgical approach were evaluated to identify factors associated with recurrence. Prevalence of nasal polyps was higher in patients with recurrence. Smoking history, alcohol abuse, staging, histologic type, malignancy and surgical approach were not associated with recurrence. The presence of nasal polyps at endoscopy was inversely associated with the diagnosis of IP at incisional biopsy. Incidental histologic diagnosis of IP after surgery increased the risk of recurrence more than tenfold. Biopsy reporting the diagnosis of IP previous to surgery was inversely associated to recurrence. In patients with IP, coexistence of nasal polyps at initial endoscopy and lack of pathological IP diagnosis prior to surgery are strongly associated with a higher risk of recurrence. When excisional biopsy reports IP incidentally, an early revision surgery should be considered in order to avoid future aggressive surgeries because of tumor recurrence.
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42: Two inexpensive alternatives to a suction-irrigation device. Am J Obstet Gynecol 2018. [DOI: 10.1016/j.ajog.2017.12.167] [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]
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94: Rates of same day discharge in minimally invasive hysterectomy: The effect of in-service education for PACU nursing staff. Am J Obstet Gynecol 2018. [DOI: 10.1016/j.ajog.2017.12.113] [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]
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21
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49: Techniques for vaginal cuff closure in robotic-assisted hysterectomies. Am J Obstet Gynecol 2018. [DOI: 10.1016/j.ajog.2017.12.174] [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]
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22
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Robotic-Assisted Transabdominal Cerclage: A Triplet Pregnancy. J Minim Invasive Gynecol 2017. [DOI: 10.1016/j.jmig.2017.08.300] [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]
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Oligodendroglia-lineage cells in brain plasticity, homeostasis and psychiatric disorders. Curr Opin Neurobiol 2017; 47:93-103. [PMID: 29073529 DOI: 10.1016/j.conb.2017.09.016] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 09/20/2017] [Accepted: 09/25/2017] [Indexed: 12/11/2022]
Abstract
Adult oligodendrocyte progenitor cells are uniformly distributed in both gray and white matter, displaying robust proliferative and migratory potential during health and disease. Recently, developments in new experimental approaches have brought about several novel insights about NG2-glia and myelinating oligodendrocytes, indicating a diverse toolkit of functions in experience-dependent myelination and homeostasis in the adult CNS. In this review, we summarize some of the topical studies that highlight newly emerging findings implicating oligodendroglia-lineage cells in brain plasticity, homeostasis and pathophysiology of neuropsychiatric disorders.
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Fahr’s Disease in a 26 year-old female: A case report. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2251] [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]
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25
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Effect of high pressure processing on sugar-snap cookie dough preservation and cookie quality. J FOOD PROCESS PRES 2017. [DOI: 10.1111/jfpp.13407] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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30: Surgical technique for needleless robotic-assisted transabdominal cerclage with posterior knot placement in the gravid and non-gravid uterus. Am J Obstet Gynecol 2017. [DOI: 10.1016/j.ajog.2016.12.043] [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]
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Trigeminal neuralgia for cerebral surgery, treatment and case report. Int J Oral Maxillofac Surg 2017. [DOI: 10.1016/j.ijom.2017.02.928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
Modern technology has allowed us to understand better the functions of saliva and now provides a rationale for developing: (1) diagnostic reagents for monitoring oral and systemic health status and (2) replacement therapies for individuals with salivary dysfunctions. Several areas of dental research are directed at augmenting or enhancing both the quality and quantity of saliva for individuals with dry mouth. An “intrinsic” approach is being explored which utilizes medications such as pilocarpine and bromhexine to stimulate the salivary glands to produce more saliva. An “extrinsic” approach proposes to use topically applied artificial saliva. Studies in our laboratory have been directed toward developing artificial salivas which incorporate many of the protective features of “native” saliva. An ideal artificial saliva should be “long-lasting”, provide lubrication, inhibit colonization of microflora responsible for dental caries and gingivitis, and coat the oral soft tissues for protection against environmental insult and desiccation. Studies are currently under way to determine the structural requirements of salivary molecules responsible for these protective functions. Composite salivary molecules consisting of multiple biologically active or “functional domains” could then be designed and synthesized based upon primary sequence and conformational analyses, computer-assisted structural predictions, and in vitro testing. These supcrsalivary substances could then be used as saliva substitutes for targeting to selected oral surfaces to promote mineralization, hydration, and/or regulate microbial-mediated disease.
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Predicción de la mortalidad a muy corto plazo de los pacientes con insuficiencia cardiaca crónica agudizada: escala EAHFE-3D. Med Intensiva 2016; 40:348-55. [DOI: 10.1016/j.medin.2015.07.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 07/24/2015] [Accepted: 07/24/2015] [Indexed: 02/01/2023]
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Assessment of the knowledge and perception of support of patients with heart failure SOPICA study IN SPAIN. Rev Clin Esp 2016. [DOI: 10.1016/j.rceng.2016.02.003] [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]
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Assessment of the knowledge and perception of support of patients with heart failure SOPICA study IN SPAIN. Rev Clin Esp 2016; 216:237-47. [PMID: 27000272 DOI: 10.1016/j.rce.2016.02.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2015] [Revised: 02/22/2016] [Accepted: 02/26/2016] [Indexed: 10/22/2022]
Abstract
OBJECTIVE To understand the perceptions of patients with heart failure (HF) concerning their disease, treatment and support, as well as the specialists who provide care after a decompensation, and to determine whether there is a relationship between the type of specialist involved in the follow-up and the medium-term prognosis. METHODS A multicentre, prospective cohort study consecutively included patients with acute HF in the emergency department. The patients were interviewed by telephone 91-180days after their emergency department visit. We investigated the relationship between the type of specialist who performed the follow-up and the emergency department visits or hospitalisations using Cox regression models, with progressive adjustment by groups of potential confounders of these relationships. RESULTS We interviewed 785 patients. Thirty-three percent (95%CI: 30%-36%) considered their disease mild, 64% (60%-67%) required help from third parties for daily activities, 65% (61%-68%) had no recent therapeutic changes, and 69% (67%-72%) received the same treatment in the exacerbations. The perceived support varied significantly depending on the factor under consideration (from greater to lesser: family, hospital, emergency department, health centre, religion and patient associations; p<.05 in all comparisons). Thirty-nine percent (36%-43%) of the patients with decompensations consulted directly with the emergency department, with no prior changes in treatment. At discharge, general practitioners (74%, 71%-77%) and cardiologists (74%, 70%-77%) were the most involved in the follow-up, although the specialty was not related to the prognosis. CONCLUSION There are various aspects of the perception of patients with HF concerning their disease that are susceptible to future interventions. Patient follow-up involves various specialties, but all achieve similar results in the medium term.
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Analyzing the discrepancies in the activation energies of the backbiting and β-scission reactions in the radical polymerization of n-butyl acrylate. Polym Chem 2016. [DOI: 10.1039/c5py01990g] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Activaton energies for backbiting and β-scission reactions for the polymerization of n-BA were determined by fitting experimental data to a mathematical model. The activation energy for backbiting was higher and that for β-scission lower than those accepted in the literature.
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Identification of Novel Long Noncoding RNAs Underlying Vertebrate Cardiovascular Development. J Vasc Surg 2016. [DOI: 10.1016/j.jvs.2015.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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34
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A new species of the Neotropical genus Beebeomyia(Diptera: Richardiidae) with observations of its biology on Dieffenbachia oerstedii(Araceae). J NAT HIST 2015. [DOI: 10.1080/00222933.2015.1005712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Why Breast Cancer Risk by the Numbers Is Not Enough: Evaluation of a Decision Aid in Multi-Ethnic, Low-Numerate Women. J Med Internet Res 2015; 17:e165. [PMID: 26175193 PMCID: PMC4526996 DOI: 10.2196/jmir.4028] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 04/17/2015] [Accepted: 04/27/2015] [Indexed: 01/28/2023] Open
Abstract
Background Breast cancer risk assessment including genetic testing can be used to classify people into different risk groups with screening and preventive interventions tailored to the needs of each group, yet the implementation of risk-stratified breast cancer prevention in primary care settings is complex. Objective To address barriers to breast cancer risk assessment, risk communication, and prevention strategies in primary care settings, we developed a Web-based decision aid, RealRisks, that aims to improve preference-based decision-making for breast cancer prevention, particularly in low-numerate women. Methods RealRisks incorporates experience-based dynamic interfaces to communicate risk aimed at reducing inaccurate risk perceptions, with modules on breast cancer risk, genetic testing, and chemoprevention that are tailored. To begin, participants learn about risk by interacting with two games of experience-based risk interfaces, demonstrating average 5-year and lifetime breast cancer risk. We conducted four focus groups in English-speaking women (age ≥18 years), a questionnaire completed before and after interacting with the decision aid, and a semistructured group discussion. We employed a mixed-methods approach to assess accuracy of perceived breast cancer risk and acceptability of RealRisks. The qualitative analysis of the semistructured discussions assessed understanding of risk, risk models, and risk appropriate prevention strategies. Results Among 34 participants, mean age was 53.4 years, 62% (21/34) were Hispanic, and 41% (14/34) demonstrated low numeracy. According to the Gail breast cancer risk assessment tool (BCRAT), the mean 5-year and lifetime breast cancer risk were 1.11% (SD 0.77) and 7.46% (SD 2.87), respectively. After interacting with RealRisks, the difference in perceived and estimated breast cancer risk according to BCRAT improved for 5-year risk (P=.008). In the qualitative analysis, we identified potential barriers to adopting risk-appropriate breast cancer prevention strategies, including uncertainty about breast cancer risk and risk models, distrust toward the health care system, and perception that risk assessment to pre-screen women for eligibility for genetic testing may be viewed as rationing access to care. Conclusions In a multi-ethnic population, we demonstrated a significant improvement in accuracy of perceived breast cancer risk after exposure to RealRisks. However, we identified potential barriers that suggest that accurate risk perceptions will not suffice as the sole basis to support informed decision making and the acceptance of risk-appropriate prevention strategies. Findings will inform the iterative design of the RealRisks decision aid.
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AB1107 Epidemiological Comparative Analysis in a Large Cohort of Systemic Lupus Erithematosus Patients: Results of the Spanish IMID Consortium. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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The proinflammatory RAGE/NF-κB pathway is involved in neuronal damage and reactive gliosis in a model of sleep apnea by intermittent hypoxia. PLoS One 2014; 9:e107901. [PMID: 25265561 PMCID: PMC4180086 DOI: 10.1371/journal.pone.0107901] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Accepted: 08/17/2014] [Indexed: 11/18/2022] Open
Abstract
Sleep apnea (SA) causes long-lasting changes in neuronal circuitry, which persist even in patients successfully treated for the acute effects of the disease. Evidence obtained from the intermittent hypoxia (IH) experimental model of SA has shown neuronal death, impairment in learning and memory and reactive gliosis that may account for cognitive and structural alterations observed in human patients. However, little is known about the mechanism controlling these deleterious effects that may be useful as therapeutic targets in SA. The Receptor for Advanced Glycation End products (RAGE) and its downstream effector Nuclear Factor Kappa B (NF-κB) have been related to neuronal death and astroglial conversion to the pro-inflammatory neurodegenerative phenotype. RAGE expression and its ligand S100B were shown to be increased in experimental models of SA. We here used dissociated mixed hippocampal cell cultures and male Wistar rats exposed to IH cycles and observed that NF-κB is activated in glial cells and neurons after IH. To disclose the relative contribution of the S100B/RAGE/NF-κB pathway to neuronal damage and reactive gliosis after IH we performed sequential loss of function studies using RAGE or S100B neutralizing antibodies, a herpes simplex virus (HSV)-derived amplicon vector that induces the expression of RAGEΔcyto (dominant negative RAGE) and a chemical blocker of NF-κB. Our results show that NF-κB activation peaks 3 days after IH exposure, and that RAGE or NF-κB blockage during this critical period significantly improves neuronal survival and reduces reactive gliosis. Both in vitro and in vivo, S100B blockage altered reactive gliosis but did not have significant effects on neuronal survival. We conclude that both RAGE and downstream NF-κB signaling are centrally involved in the neuronal alterations found in SA models, and that blockage of these pathways is a tempting strategy for preventing neuronal degeneration and reactive gliosis in SA.
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FRI0175 Indirect Treatment Comparisons and Network Meta-Analysis among Biological Agents for Rheumatoid Arthritis: A Systematic Review of Published Literature. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.2512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Abstract
Neuropsychiatric manifestations are serious and frequent complications of systemic lupus erythematous (SLE). Catatonia is a neuropsychiatric disorder characterized by motor disturbance (including waxy flexibility and catalepsy), stupor, excitement, negativism, mutism, echopraxia and echolalia. Catatonia associated with SLE has been only rarely reported, especially in children. Here we present a case of a 14-year-old patient encountered in consultation-liaison psychiatry who presented catatonia associated with SLE. Her catatonia was refractory to treatment with pulse methylprednisolone, intravenous cyclophosphamide and rituximab. The patient responded to a combined therapy of electroconvulsive therapy and benzodiazepines. The present case suggests that although rarely reported, catatonia seen in the background of SLE should be promptly identified and treated to reduce the morbidity.
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Abstract
Resolvins are potent anti-inflammatory mediators derived from ω-3 fatty acids. Results from our previous studies indicated that resolvin D1 (RvD1) blocks pro-inflammatory responses in salivary glands. Furthermore, RvD1 enhances salivary epithelial integrity, demonstrating its potential use for the restoration of salivary gland function in Sjögren's syndrome (SS). We investigated whether the RvD1 biosynthetic machinery (e.g., cytosolic phospholipase A2, calcium-independent phospholipase A2, 12/15 and 5-lipoxygenase) is expressed in mouse submandibular glands (mSMG), using qPCR and Western blot analyses. Additionally, we determined the localization of RvD1 biosynthetic machinery in mSMG and human minor salivary glands (hMSG), with and without SS, using confocal microscopy. Finally, we measured RvD1 levels in cell supernatants from mSMG cell cultures and freshly isolated mSMG cells, with and without SS, using ELISA. Our results indicate that: (1) RvD1 machinery is expressed in mouse and human salivary glands; (2) polar distribution of RvD1 biosynthetic machinery is lost in hMSG with SS; (3) RvD1 levels in mSMG cell culture supernatants increased with time; and (4) RvD1 levels in mSMG cell supernatants, with and without SS, were similar. These studies demonstrate that the RvD1 biosynthesis machinery is expressed and functional in salivary glands with and without SS.
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MESH Headings
- Animals
- Arachidonate 12-Lipoxygenase/analysis
- Arachidonate 12-Lipoxygenase/metabolism
- Arachidonate 15-Lipoxygenase/analysis
- Arachidonate 15-Lipoxygenase/metabolism
- Arachidonate 5-Lipoxygenase/analysis
- Arachidonate 5-Lipoxygenase/metabolism
- Cell Culture Techniques
- Cell Membrane/enzymology
- Cells, Cultured
- Cytosol/enzymology
- Docosahexaenoic Acids/analysis
- Docosahexaenoic Acids/biosynthesis
- Epithelium/metabolism
- Female
- Humans
- Mice
- Mice, Inbred C57BL
- Mice, Inbred NOD
- Mice, Inbred Strains
- Phospholipases A2, Calcium-Independent/analysis
- Phospholipases A2, Calcium-Independent/metabolism
- Phospholipases A2, Cytosolic/analysis
- Phospholipases A2, Cytosolic/metabolism
- Salivary Glands, Minor/metabolism
- Salivary Glands, Minor/pathology
- Sjogren's Syndrome/metabolism
- Sjogren's Syndrome/pathology
- Submandibular Gland/cytology
- Submandibular Gland/metabolism
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Polymerization of N-Vinyl Formamide in Homogeneous and Heterogeneous Media and Surfactant Free Emulsion Polymerization of MMA Using Polyvinylamine as Stabilizer. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/masy.201300083] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Low-dose aspirin vs low-dose aspirin plus low-intensity warfarin in thromboprophylaxis: a prospective, multicentre, randomized, open, controlled trial in patients positive for antiphospholipid antibodies (ALIWAPAS). Rheumatology (Oxford) 2013; 53:275-84. [DOI: 10.1093/rheumatology/ket313] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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The caveolin-1 connection to cell death and survival. Curr Mol Med 2013; 13:266-81. [PMID: 23228128 DOI: 10.2174/156652413804810745] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Revised: 10/23/2012] [Accepted: 11/01/2012] [Indexed: 11/22/2022]
Abstract
Caveolins are a family of membrane proteins required for the formation of small plasma membrane invaginations called caveolae that are implicated in cellular trafficking processes. In addition to this structural role, these scaffolding proteins modulate numerous intracellular signaling pathways; often via direct interaction with specific binding partners. Caveolin-1 is particularly well-studied in this respect and has been attributed a large variety of functions. Thus, Caveolin-1 also represents the best-characterized isoform of this family with respect to its participation in cancer. Rather strikingly, available evidence indicates that Caveolin-1 belongs to a select group of proteins that function, depending on the cellular settings, both as tumor suppressor and promoter of cellular traits commonly associated with enhanced malignant behavior, such as metastasis and multi-drug resistance. The mechanisms underlying such ambiguity in Caveolin-1 function constitute an area of great interest. Here, we will focus on discussing how Caveolin-1 modulates cell death and survival pathways and how this may contribute to a better understanding of the ambiguous role this protein plays in cancer.
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Antimicrobial, mechanical and barrier properties of triticale protein films incorporated with oregano essential oil. FOOD BIOSCI 2013. [DOI: 10.1016/j.fbio.2012.12.001] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Chia (Salvia hispanica) can be used to manufacture sugar-snap cookies with an improved nutritional value. INTERNATIONAL JOURNAL OF FOOD STUDIES 2012. [DOI: 10.7455/ijfs/1.2.2012.a4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Technologists and nutritionists are always looking for alternative ingredients to use in their formulations to improve functional and nutritional properties. Therefore, cookies using Chia (Salvia hispanica), a grain with high quality nutrients, were prepared. The nutritional value was determined by measuring the chemical composition, mineral content, and the fatty acid composition (saturated, monunsaturated, polyunsaturated, linoleic and linolenic acids). Data obtained from this chemical analysis was used to estimate the nutrients intake and compare them to the dietary reference intakes (DRIs). Cookies supplemented with chia flour contained signicantly more protein, fat, crude fiber, calcium, zinc, and alpha-linolenic (n-3) acid. It was estimated that the supplemented cookies would contribute to the corresponding DRIs in the range of 8.1-13.8% (children) and 6.5-11.0% (males/females) for calcium; and 14.0-18.0% (children) and 6.4-11.3 (males/females) for zinc. The addition of chia flour to the cookies resulted in a product sensorially acceptable with a better fatty acid profile (lower n-6/n-3). Supplemented cookies would contribute to alpha-linolenic DRI in the range of 65.9-134.5% (children), 49.4-100.9% (males), and 53.9-110.0% (females). Dietary intake of protein, fiber, calcium, zinc, and alpha-linolenic (n-3) acid could be increased by the consumption of sugar-snap cookies supplemented with chia flour.
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[Predictive factors of 2009 H1N1 virus infection in patients with influenza syndrome]. REVISTA ESPANOLA DE QUIMIOTERAPIA : PUBLICACION OFICIAL DE LA SOCIEDAD ESPANOLA DE QUIMIOTERAPIA 2011; 24:25-31. [PMID: 21412666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
INTRODUCTION Polymerase chain reaction (PCR) testing is one of the better techniques for viral detection in nasopharyngeal swabs. The objective of this study was to assess the percentage of positive swabs and to determine whether there were differences according to PCR positivity. MATERIAL AND METHODS A retrospective study of 362 patients with flu syndrome attended at the Emergency Department between July 15 and December 15, 2009, in whom PCR of nasopharyngeal swabs for the detection of H1N1 2009 influenza virus was performed. Those cases in which swab testing was adequately requested were identified, and patients were divided into two groups according to positive or negative results for H1N1 2009 influenza virus. RESULTS Nasopharyngeal swab was inadequately ordered in 87. In the remaining 275 patients, PCR was positive in 141. Patients with positive nasopharyngeal swabs were younger (mean [SD] age 36.1 [15] vs 42.3 [18] years, P= 0.002), had lower white blood cell, neutrophil and lymphocyte counts, lower serum concentrations of C-reactive protein (5.15 [5] vs 10.5[12] mg/dL, P= 0.036) and lower incidence of radiological infiltrates (20.5% vs 33%, P= 0.036). In the logistic regression analysis, age, serum C-reactive protein levels, and lymphocyte count were independently associated with a positive nasopharyngeal swab. CONCLUSIONS About 50% of patients with flu syndrome had positive nasopharyngeal swabs for H1N1 2009 influenza virus. Age, C-reactive protein, and lymphocyte count were independent predictors of positivity.
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Effect of blasting treatment and Fn coating on MG63 adhesion and differentiation on titanium: a gene expression study using real-time RT-PCR. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2011; 22:617-627. [PMID: 21258846 DOI: 10.1007/s10856-011-4229-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2009] [Accepted: 01/04/2011] [Indexed: 05/30/2023]
Abstract
Biomaterial surface properties, via alterations in the adsorbed protein layer, and the presence of specific functional groups can influence integrin binding specificity, thereby modulating cell adhesion and differentiation processes. The adsorption of fibronectin, a protein directly involved in osteoblast adhesion to the extracellular matrix, has been related to different physical and chemical properties of biomaterial surfaces. This study used blasting particles of different sizes and chemical compositions to evaluate the response of MG63 osteoblast-like cells on smooth and blasted titanium surfaces, with and without fibronectin coatings, by means of real-time reverse transcription-polymerase chain reaction (qRT-PCR) assays. This response included (a) expression of the α(5), α(v) and α(3) integrin subunits, which can bind to fibronectin through the RGD binding site, and (b) expression of alkaline phosphatase (ALP) and osteocalcin (OC) as cell-differentiation markers. ALP activity and synthesis of OC were also tested. Cells on SiC-blasted Ti surfaces expressed higher amounts of the α(5) mRNA gene than cells on Al(2)O(3)-blasted Ti surfaces. This may be related to the fact that SiC-blasted surfaces adsorbed higher amounts of fibronectin due to their higher surface free energy and therefore provided a higher number of specific cell-binding sites. Fn-coated Ti surfaces decreased α(5) mRNA gene expression, by favoring the formation of other integrins involved in adhesion over α(5)β(1). The changes in α(5) mRNA expression induced by the presence of fibronectin coatings may moreover influence the osteoblast differentiation pathway, as fibronectin coatings on Ti surfaces also decreased both ALP mRNA expression and ALP activity after 14 and 21 days of cell culture.
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C02 Analysis of the instability of the CAG trinucleotide repeat and the age of onset in a Huntington's disease population from the Basque country. Journal of Neurology, Neurosurgery and Psychiatry 2010. [DOI: 10.1136/jnnp.2010.222588.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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