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Τρίτη 16 Οκτωβρίου 2018

Cosmetics, Vol. 5, Pages 61: Endocrine Disruption by Mixtures in Topical Consumer Products

Cosmetics, Vol. 5, Pages 61: Endocrine Disruption by Mixtures in Topical Consumer Products

Cosmetics doi: 10.3390/cosmetics5040061

Authors: Emiliano Ripamonti Elena Allifranchini Stefano Todeschi Elena Bocchietto

Endocrine disruption has been gathering increasing attention in the past 25 years as a possible new threat for health and safety. Exposure to endocrine disruptor has been progressively linked with a growing number of increasing disease in the human population. The mechanics through which endocrine disruptors act are not yet completely clear, however a number of pathways have been identified. A key concern is the cumulative and synergic effects that endocrine disruptors could have when mixed in consumer products. We reviewed the available literature to identify known or potential endocrine disruptors, as well as endocrine active substances that could contribute to cumulative effects, in topical consumer products. The number of endocrine actives used daily in consumer products is staggering and even though most if not all are used in concentrations that are considered to be safe, we believe that the possibility of combined effects in mixtures and non-monotonic dose/response is enough to require further precautions. A combined in vitro approach based on existing, validated OECD test methods is suggested to screen consumer products and mixtures for potential interaction with estrogen and androgen hormone receptors, in order to identify products that could have cumulative effects or support their safety concerning direct endocrine disruption capabilities.



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Scholar : These new articles for Critical Inquiry in Language Studies are available online

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Scholar : Archives of Physiology and Biochemistry, Volume 124, Issue 5, December 2018 is now available online on Taylor & Francis Online

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Archives of Physiology and Biochemistry, Volume 124, Issue 5, December 2018 is now available online on Taylor & Francis Online.



This new issue contains the following articles:

Review Article

Management of diabetes using herbal extracts: review
Walid Hamdy El-Tantawy & Abeer Temraz
Pages: 383-389 | DOI: 10.1080/13813455.2017.1419493


Ethnobotanical, phytochemical and therapeutic effects of Myrtus communis L. berries seeds on gastrointestinal tract diseases: a review
Mohamed-Amine Jabri, Lamjed Marzouki & Hichem Sebai
Pages: 390-396 | DOI: 10.1080/13813455.2017.1423504


Original Article

Demographic and lifestyle factors that affect HbA1c awareness amongst type II diabetic patients in Trinidad
B. Shivananda Nayak, Karina Khan, Christian Kidney, Vanessa Knowles, Adrian Koo, Andrew Lakhan, Daniel Lalla, Christopher Lalloo, Staci-Ann Lallo & Shamjeet Singh
Pages: 397-400 | DOI: 10.1080/13813455.2017.1412466


Pro-inflammatory cytokine-induced lipolysis after an episode of acute pancreatitis
Sayali A. Pendharkar, Ruma G. Singh & Maxim S. Petrov
Pages: 401-409 | DOI: 10.1080/13813455.2017.1415359


Dietary phenolic acids reverse insulin resistance, hyperglycaemia, dyslipidaemia, inflammation and oxidative stress in high-fructose diet-induced metabolic syndrome rats
Oluwayemisi B. Ibitoye & Taofeek O. Ajiboye
Pages: 410-417 | DOI: 10.1080/13813455.2017.1415938


Phenelzine reduces the oxidative damage induced by peroxynitrite in plasma lipids and proteins
Ayman G. Mustafa, Othman Al-Shboul, Mahmoud A. Alfaqih, Mohammad A. Al-Qudah & Ahmed N. Al-Dwairi
Pages: 418-423 | DOI: 10.1080/13813455.2017.1415939


Effect of phosphodiesterase inhibitors on renal functions and oxidant/antioxidant parameters in streptozocin-induced diabetic rats
Osama Mahmoud Mehanna, Ahmad El Askary, Saad Al-Shehri & Basem El-Esawy
Pages: 424-429 | DOI: 10.1080/13813455.2017.1419267


The downregulation of sweet taste receptor signaling in enteroendocrine L-cells mediates 3-deoxyglucosone-induced attenuation of high glucose-stimulated GLP-1 secretion | Open Access
Fei Wang, Xiudao Song, Liang Zhou, Guoqiang Liang, Fei Huang, Guorong Jiang & Lurong Zhang
Pages: 430-435 | DOI: 10.1080/13813455.2017.1419366


Arecoline ameliorates hyperthyroid condition in mice under cold stress
Romi Dasgupta, Indraneel Saha, Aniruddha Maity, Prajna Paramita Ray & B. R. Maiti
Pages: 436-441 | DOI: 10.1080/13813455.2017.1420665


Brain-derived neurotropic factor (BDNF) heterozygous mice are more susceptible to synaptic protein loss in cerebral cortex during high fat diet
İsmail Abidin, Selcen Aydin-Abidin, Akin Bodur, İmran İnce & Ahmet Alver
Pages: 442-447 | DOI: 10.1080/13813455.2017.1420666


Chemoprotective effects of curcumin on doxorubicin-induced nephrotoxicity in wistar rats: by modulating inflammatory cytokines, apoptosis, oxidative stress and oxidative DNA damage
Fulya Benzer, Fatih Mehmet Kandemir, Sefa Kucukler, Selim Comaklı & Cuneyt Caglayan
Pages: 448-457 | DOI: 10.1080/13813455.2017.1422766


Physiological variations among blood parameters of domestic cats at high- and low-altitude regions of China
Hui Zhang, Hailong Dong, Khalid Mehmood, Kun Li, Fazul Nabi, Zhenyu Chang, Mujeeb Ur Rehman, Muhammad Ijaz, Qingxia Wu & Jiakui Li
Pages: 458-460 | DOI: 10.1080/13813455.2018.1423623


Vitamin D protection from rat diabetic nephropathy is partly mediated through Klotho expression and renin–angiotensin inhibition
Nashwa Eltablawy, Hend Ashour, Laila Ahmed Rashed & Wael Mostafa Hamza
Pages: 461-467 | DOI: 10.1080/13813455.2018.1423624


High glucose induces inflammatory responses in HepG2 cells via the oxidative stress-mediated activation of NF-κB, and MAPK pathways in HepG2 cells
Ghodratollah Panahi, Parvin Pasalar, Mina Zare, Rosario Rizzuto & Reza Meshkani
Pages: 468-474 | DOI: 10.1080/13813455.2018.1427764


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Scholar : Communication Research and Practice, Volume 4, Issue 4, November 2018 is now available online on Taylor & Francis Online

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Communication Research and Practice, Volume 4, Issue 4, November 2018 is now available online on Taylor & Francis Online.



This new issue contains the following articles:

Editorial

Editorial
Colleen E. Mills
Pages: 325-327 | DOI: 10.1080/22041451.2018.1507333


Articles

Truth value, Trump, and benign lies at the closing of the Gutenberg Parenthesis
Frank Sligo
Pages: 328-341 | DOI: 10.1080/22041451.2018.1434790


Communication life line? ABC emergency broadcasting in rural/regional Australia
Julie Freeman, Kristy Hess & Lisa Waller
Pages: 342-360 | DOI: 10.1080/22041451.2017.1370354


Leaving the camps behind: the role of Development Communication in refugee-host integration
Valentina Baú
Pages: 361-374 | DOI: 10.1080/22041451.2018.1431865


Telling the impact investment story through digital media: an Indonesian case study
Paul Ryder & Joanna Vogeley
Pages: 375-395 | DOI: 10.1080/22041451.2017.1387956


Ear to the ground or useless entities? Citizen journalism and mainstream media in India
Paromita Pain
Pages: 396-411 | DOI: 10.1080/22041451.2018.1433932


Book Review

Māori television – the first ten years, by Jo Smith, Auckland, Auckland University Press, 2016, 210 pp., NZ$45 (paperback), ISBN 978 1 86940 857 2
Steve Elers
Pages: 412-413 | DOI: 10.1080/22041451.2018.1421360


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Scholar : Voice and Speech Review, Volume 12, Issue 3, November 2018 is now available online on Taylor & Francis Online

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Voice and Speech Review, Volume 12, Issue 3, November 2018 is now available online on Taylor & Francis Online.



This new issue contains the following articles:

Editor's Note

Fearless Scholarship: Looking Out and Looking In
Rockford Sansom
Pages: 231-233 | DOI: 10.1080/23268263.2018.1518856


Articles

The Story of the Australian Voice
Melissa Agnew
Pages: 234-240 | DOI: 10.1080/23268263.2018.1468305


The Role of the Production Voice Coach in Contemporary Australian Theatre
Simon Masterton
Pages: 241-255 | DOI: 10.1080/23268263.2018.1468306


The Authentic Actor: An Examination of Vocal Training within the Australian Conservatory Model
Andrea Moor
Pages: 256-266 | DOI: 10.1080/23268263.2018.1466763


Field Notes for an Australian Production of The Beautiful Game: A Case Study in Coaching Challenges
Luzita Fereday
Pages: 267-275 | DOI: 10.1080/23268263.2018.1464621


Article

Finding a Way: More Tales of Dyslexia and Dyspraxia in Psychophysical Actor Training
Daron Oram
Pages: 276-294 | DOI: 10.1080/23268263.2018.1518375


The Current Use of Standard Dialects in Speech Practice and Pedagogy: A Mixed Method Study Examining the VASTA Community in the United States
Melissa Tonning-Kollwitz & Joe Hetterly
Pages: 295-315 | DOI: 10.1080/23268263.2018.1500195


Yat, Uptown, and Cajun French Accents in English
Artemis Preeshl & Kirby Wahl
Pages: 316-331 | DOI: 10.1080/23268263.2018.1517436


Articles

The Relationship between Solo Performance and Applied Singing Lessons: Mambo as a Qualitative Study
Monica Harte
Pages: 332-350 | DOI: 10.1080/23268263.2018.1483603


Discussion

Notes on the 2018 VASTA/PAVA Conference Soma and Science: Bridging the Gap in Interdisciplinary Voice Training
Kate Glasheen & Jeremy Sortore
Pages: 351-355 | DOI: 10.1080/23268263.2018.1518378


Forum

Performing Arts Training in the Age of #MeToo
Jennifer Spencer
Pages: 356-366 | DOI: 10.1080/23268263.2018.1488461


Editorial

A Shout Out in Praise of Shouting Out
Ursula Meyer
Pages: 367-368 | DOI: 10.1080/23268263.2018.1518373


Book Review

Acting the Song Performance: Skills for the Musical Theater
Shannon Holmes
Pages: 369-378 | DOI: 10.1080/23268263.2018.1468299


Book Reviews

Cracking Shakespeare: A Hands-on Guide for Actors and Directors + Video
Michael Elliott
Pages: 371-374 | DOI: 10.1080/23268263.2018.1480173


The Actor Uncovered: A Life in Acting
Frances Mulinix
Pages: 374-376 | DOI: 10.1080/23268263.2018.1486964


Voice Training Programs for Professional Speakers: Global Outcomes
Ursula Meyer
Pages: 376-378 | DOI: 10.1080/23268263.2018.1480467


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Radiation Oncology Mobile Application

Conditions:   Head and Neck Cancer;   Radiation Toxicity
Intervention:  
Sponsor:   King Hussein Cancer Center
Not yet recruiting

https://ift.tt/2RUVnro

Phase III Study of Camrelizumab in Combination With Chemotherapy in Recurrent/Metastatic Nasopharyngeal Carcinoma

Condition:   Nasopharyngeal Carcinoma
Interventions:   Drug: Camrelizumab;   Drug: Placebos;   Drug: Gemcitabine;   Drug: Cisplatin
Sponsor:   Jiangsu HengRui Medicine Co., Ltd.
Not yet recruiting

https://ift.tt/2EmUpBn

The Effect of Functional Exercises on Balance With Postural Thoracic Kyphosis

Conditions:   Postural Kyphosis;   Balance
Interventions:   Behavioral: The Group I Postural Exercise;   Behavioral: The Group II Three-dimensional Exercise Therapy Program
Sponsor:   Istanbul Medipol University Hospital
Recruiting

https://ift.tt/2RMKS9r

Genetic Analysis of Blood and Tissue Samples From Participants With Advanced Cancer

Conditions:   Advanced Melanoma;   Advanced Renal Cell Carcinoma;   Anatomic Stage III Breast Cancer AJCC v8;   Anatomic Stage IIIA Breast Cancer AJCC v8;   Anatomic Stage IIIB Breast Cancer AJCC v8;   Anatomic Stage IIIC Breast Cancer AJCC v8;   Anatomic Stage IV Breast Cancer AJCC v8;   Clinical Stage III Gastroesophageal Junction Adenocarcinoma AJCC v8;   Clinical Stage IV Gastroesophageal Junction Adenocarcinoma AJCC v8;   Clinical Stage IVA Gastroesophageal Junction Adenocarcinoma AJCC v8;   Clinical Stage IVB Gastroesophageal Junction Adenocarcinoma AJCC v8;   Pathologic Stage III Gastroesophageal Junction Adenocarcinoma AJCC v8;   Pathologic Stage IIIA Gastroesophageal Junction Adenocarcinoma AJCC v8;   Pathologic Stage IIIB Gastroesophageal Junction Adenocarcinoma AJCC v8;   Pathologic Stage IV Gastroesophageal Junction Adenocarcinoma AJCC v8;   Pathologic Stage IVA Gastroesophageal Junction Adenocarcinoma AJCC v8;   Pathologic Stage IVB Gastroesophageal Junction Adenocarcinoma AJCC v8;   Prognostic Stage III Breast Cancer AJCC v8;   Prognostic Stage IIIA Breast Cancer AJCC v8;   Prognostic Stage IIIB Breast Cancer AJCC v8;   Prognostic Stage IIIC Breast Cancer AJCC v8;   Prognostic Stage IV Breast Cancer AJCC v8;   Stage III Colorectal Cancer AJCC v8;   Stage III Lung Cancer AJCC v8;   Stage III Ovarian Cancer AJCC v8;   Stage III Prostate Cancer AJCC v8;   Stage IIIA Colorectal Cancer AJCC v8;   Stage IIIA Lung Cancer AJCC v8;   Stage IIIA Ovarian Cancer AJCC v8;   Stage IIIA Prostate Cancer AJCC v8;   Stage IIIA1 Ovarian Cancer AJCC v8;   Stage IIIA2 Ovarian Cancer AJCC v8;   Stage IIIB Colorectal Cancer AJCC v8;   Stage IIIB Lung Cancer AJCC v8;   Stage IIIB Ovarian Cancer AJCC v8;   Stage IIIB Prostate Cancer AJCC v8;   Stage IIIC Colorectal Cancer AJCC v8;   Stage IIIC Lung Cancer AJCC v8;   Stage IIIC Ovarian Cancer AJCC v8;   Stage IIIC Prostate Cancer AJCC v8;   Stage IV Colorectal Cancer AJCC v8;   Stage IV Lung Cancer AJCC v8;   Stage IV Ovarian Cancer AJCC v8;   Stage IV Prostate Cancer AJCC v8;   Stage IVA Colorectal Cancer AJCC v8;   Stage IVA Lung Cancer AJCC v8;   Stage IVA Ovarian Cancer AJCC v8;   Stage IVA Prostate Cancer AJCC v8;   Stage IVB Colorectal Cancer AJCC v8;   Stage IVB Lung Cancer AJCC v8;   Stage IVB Ovarian Cancer AJCC v8;   Stage IVB Prostate Cancer AJCC v8;   Stage IVC Colorectal Cancer AJCC v8
Intervention:   Procedure: Biospecimen Collection
Sponsor:   National Cancer Institute (NCI)
Not yet recruiting

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Safety, Tolerability and Efficacy Profile of Rivoceranib With Paclitaxel in Advanced GC or GEJ Cancer.

Conditions:   Gastric Cancer;   Gastroesophageal Junction Adenocarcinoma
Interventions:   Drug: Rivoceranib;   Drug: Paclitaxel
Sponsor:   LSK BioPartners Inc.
Not yet recruiting

https://ift.tt/2RW9Sez

Back Pain in Medical Students at The University of the West Indies, Mona, Jamaica

Condition:   Back Pain
Intervention:   Other: Spine Exercise Program
Sponsor:   The University of The West Indies
Not yet recruiting

https://ift.tt/2EkHuQi

CAR T and PD-1 Knockout Engineered T Cells for Esophageal Cancer

Condition:   Advanced Esophageal Cancer
Interventions:   Biological: Anti-MUC1 CAR-T cells;   Biological: PD-1 knockout Engineered T cells;   Combination Product: CAR-T combined with PD-1 Knockout T cells
Sponsors:   The First Affiliated Hospital of Guangdong Pharmaceutical University;   Guangzhou Anjie Biomedical Technology Co;LTD
Recruiting

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A Study to Compare Efficacy and Safety of DRT VS CRT Plus Surgery in Patients Who Achieved CCR for Esophageal Cancer

Conditions:   Stage II Esophageal Cancer;   Stage III Esophageal Cancer
Interventions:   Combination Product: Definitive Radiochemotherapy;   Combination Product: Neoadjuvant Radiochemotherapy
Sponsors:   Tianjin Medical University Cancer Institute and Hospital;   Cancer Institute and Hospital, Chinese Academy of Medical Sciences;   Sun Yat-sen University;   Beijing Cancer Hospital
Not yet recruiting

https://ift.tt/2EmU0yR

Scholar : Alcoholism Treatment Quarterly, Volume 36, Issue 4, 2018 is now available online on Taylor & Francis Online

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The online platform for Taylor & Francis Online content

Alcoholism Treatment Quarterly, Volume 36, Issue 4, 2018 is now available online on Taylor & Francis Online.

International Experiences of Life in Recovery

This new issue contains the following articles:

Editorials

Editorial: International Experiences of Life in Recovery
David Best & Michael Edwards
Pages: 429-436 | DOI: 10.1080/07347324.2018.1488551


Articles

Life in Recovery: A Families' Perspective
Michael Edwards, David Best, James Irving & Catrin Andersson
Pages: 437-458 | DOI: 10.1080/07347324.2018.1488553


Participation with online recovery specific groups - findings from the UK Life in Recovery survey 2015
Simon Graham, Jamie Irving, Ivan Cano & Michael Edwards
Pages: 459-481 | DOI: 10.1080/07347324.2018.1500873


Multiple Pathways to Recovery, Multiple Roads to Well-Being: An Analysis of Recovery Pathways in the Australian Life in Recovery Survey
Elizabeth Elms, Michael Savic, Ramez Bathish, David Best, Victoria Manning & Dan I. Lubman
Pages: 482-498 | DOI: 10.1080/07347324.2018.1490158


Life in Recovery from Addiction in Canada: Examining Gender Pathways with a Focus on the Female Experience
Robyn J. McQuaid PhD & Colleen Dell PhD
Pages: 499-516 | DOI: 10.1080/07347324.2018.1502642


REC-PATH (Recovery Pathways): Overview of a Four-Country Study of Pathways to Recovery from Problematic Drug Use
David Best, Wouter Vanderplasschen, Dike Van de Mheen, Jessica De Maeyer, Charlotte Colman, Freya Vander Laenen, Jamie Irving, Catrin Andersson, Michael Edwards, Lore Bellaert, Thomas Martinelli, Simon Graham, Rebecca Hamer & Gera E. Nagelhout
Pages: 517-529 | DOI: 10.1080/07347324.2018.1488550


Life in Recovery in Australia and the United Kingdom: Do Stages of Recovery Differ Across National Boundaries?
David Best PhD, Michael Savic PhD, Ramez Bathish, Michael Edwards, Jamie Irving, Ivan Cano & Kathy Albertson
Pages: 530-541 | DOI: 10.1080/07347324.2018.1492336


Miscellaneous

Editorial Board EOV
Pages: 542-542 | DOI: 10.1080/07347324.2018.1526894


JOIN US at the 2019 JCCAP Future Directions Forum June 28-29, 2019 - Professional development training in child and adolescent mental health.

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Thyroid ultrasonography reporting: consensus of Italian Thyroid Association (AIT), Italian Society of Endocrinology (SIE), Italian Society of Ultrasonography in Medicine and Biology (SIUMB) and Ultrasound Chapter of Italian Society of Medical Radiology (SIRM)

Abstract

Thyroid ultrasonography (US) is the gold standard for thyroid imaging and its widespread use is due to an optimal spatial resolution for superficial anatomic structures, a low cost and the lack of health risks. Thyroid US is a pivotal tool for the diagnosis and follow-up of autoimmune thyroid diseases, for assessing nodule size and echostructure and defining the risk of malignancy in thyroid nodules. The main limitation of US is the poor reproducibility, due to the variable experience of the operators and the different performance and settings of the equipments. Aim of this consensus statement is to standardize the report of thyroid US through the definition of common minimum requirements and a correct terminology. US patterns of autoimmune thyroid diseases are defined. US signs of malignancy in thyroid nodules are classified and scored in each nodule. We also propose a simplified nodule risk stratification, based on the predictive value of each US sign, classified and scored according to the strength of association with malignancy, but also to the estimated reproducibility among different operators.



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Effect of air-blowing time and long-term storage on bond strength of universal adhesives to dentin

Abstract

Objectives

To evaluate the effects of air-blowing time and storage time on microtensile bond strength (μTBS) of universal adhesives to dentin.

Materials and methods

Ninety flat dentin surfaces from extracted human third molars were bonded with three universal adhesives (Clearfil Universal Bond-CU; G-Premio Bond-GP; Scotchbond Universal Adhesives-SB). Bonded dentin surfaces were air-dried for 5 s, 15 s, or 30 s followed by resin composite built-up. Resin-dentin beams were tested with μTBS test after different storage time in distilled water (24 h and 1 year). Data were analyzed by three-way ANOVA and Duncan test at (α = 0.05). Failure mode and resin-dentin interfaces were observed using a scanning electron microscope (SEM). Specific features of fractured beams after μTBS were further observed using SEM at high magnification.

Results

Extension of air-blowing time from 5 s to 30 s increased the 24 h μTBS of CU only. Bond strength of all adhesives significantly decreased after 1-year storage except for CU at 5 s and 30 s of air-blowing time. One-year μTBS were significantly higher when air-blowing times were extended to 15 s for SB and 30 s for CU. Air-blowing time had no influence on GP.

Conclusion

The effect of air-blowing time and storage time on resin-dentin bond was material-dependent.

Clinical relevance

Extended air-blowing time increased the bond strength and bond durability of CU. Extension of air-blowing time to 15 s and 30 s improve the long-term bond strength of SB and CU, respectively.



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Scholar : Asian Journal of Political Science, Volume 26, Issue 3, December 2018 is now available online on Taylor & Francis Online

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Asian Journal of Political Science, Volume 26, Issue 3, December 2018 is now available online on Taylor & Francis Online.

Postcolonial Perspectives on Weapons Control

This new issue contains the following articles:

Editorial

Postcolonial perspectives on weapons control
Ritu Mathur
Pages: 293-296 | DOI: 10.1080/02185377.2018.1526694


Articles

Techno-Racial dynamics of denial & difference in weapons control
Ritu Mathur
Pages: 297-313 | DOI: 10.1080/02185377.2018.1515640


Decolonizing arms control: the Asian African Legal Consultative Committee and the legality of nuclear testing, 1960–64
Itty Abraham
Pages: 314-330 | DOI: 10.1080/02185377.2018.1485588


Iran v 'the international community': a postcolonial analysis of the negotiations on the Iranian nuclear program
Shampa Biswas
Pages: 331-351 | DOI: 10.1080/02185377.2018.1481441


Resignifying 'responsibility': India, exceptionalism and nuclear non-proliferation
Priya Chacko & Alexander E Davis
Pages: 352-370 | DOI: 10.1080/02185377.2018.1486218


The '-Pacific' part of 'Asia-Pacific': Oceanic diplomacy in the 2017 treaty for the prohibition of nuclear weapons
Matthew Bolton
Pages: 371-389 | DOI: 10.1080/02185377.2018.1515641


Regular Articles

Legal governance of NGOs in China under Xi Jinping: Reinforcing divide and rule
Heejin Han
Pages: 390-409 | DOI: 10.1080/02185377.2018.1506994


Nepal, federalism and participatory constitution-making: deliberative democracy and divided societies
Michael G. Breen
Pages: 410-430 | DOI: 10.1080/02185377.2018.1515639


Administrative reform in India: retaining the British steel frame
Noor Mohammad Masum
Pages: 431-446 | DOI: 10.1080/02185377.2018.1525570


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Investigating mobility of crude oil adsorbates on mineral surfaces by NMR

Publication date: Available online 15 October 2018

Source: Magnetic Resonance Imaging

Author(s): Henrik N. Sørgård, Christian Totland, Willy Nerdal, John Georg Seland

Abstract

We have applied diffusion and relaxation Nuclear Magnetic Resonance experiments to investigate the translational and rotational mobility of adsorbents on quartz and calcite mineral surfaces. On both surfaces it was found that water is the dominant molecule. On the quartz surface the majority of water molecules have a relatively high degree of both rotational and translational mobility, while a minor fraction of water molecules, and all hydrocarbon molecules, have a significantly lower mobility. On the calcite surface the translational mobility is very low for all the adsorbed molecules, while there is a large diversity in rotational mobility, indicating that the hydrocarbon molecules are strongly attached to the surface, but that some part of each molecule still have a large degree of rotational mobility. Diffusion and relaxation experiments give a detailed description of both the molecular mobility of adsorbed species on these mineral surfaces, which leads to new insight with respect to aging processes on a molecular level.



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Under-sampling and compressed sensing of 3D spatially-resolved displacement propagators in porous media using APGSTE-RARE MRI

Publication date: Available online 15 October 2018

Source: Magnetic Resonance Imaging

Author(s): Daan W. de Kort, Stefan A. Hertel, Matthias Appel, Hilko de Jong, Michael D. Mantle, Andrew J. Sederman, Lynn F. Gladden

Abstract

A method for under-sampling and compressed sensing of 3D spatially-resolved propagators is presented and demonstrated for flow in a packed bed and a heterogeneous carbonate rock. By sampling only 12.5% of q,k-space, the experimental acquisition time was reduced by almost an order of magnitude. In particular, for both systems studied, a 3D image was acquired at 1 mm isotropic spatial resolution such that 134,400 local propagators were obtained. Data were acquired in ~1 h and ~11 h for the packed bed and rock, respectively. It is shown that spatial resolution and under-sampling using this implementation retains the quantitative nature of the propagator measurement, and differences between implementation of this measurement in two and three dimensions are identified. The potential for 3D spatially-resolved propagators to provide new insights into transport processes in porous media by characterisation of the statistical moments of the propagators is discussed.

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Long-chain omega-3 polyunsaturated fatty acids decrease mammary tumor growth, multiorgan metastasis and enhance survival

Abstract

Epidemiological studies show a reduced risk of breast cancer (BC) in women consuming high levels of long-chain (LC) omega-3 (ω-3) fatty acids (FAs) compared with women who consumed low levels. However, the regulatory and mechanistic roles of dietary ω-6 and LC-ω-3 FAs on tumor progression, metastasis and survival are poorly understood. Female BALB/c mice (10-week old) were pair-fed with a diet containing ω-3 or an isocaloric, isolipidic ω-6 diet for 16 weeks prior to the orthotopic implantation of 4T1 mammary tumor cells. Major outcomes studied included: mammary tumor growth, survival analysis, and metastases analyses in multiple organs including pulmonary, hepatic, bone, cardiac, renal, ovarian, and contralateral MG (CMG). The dietary regulation of the tumor microenvironment was evaluated in mice autopsied on day-35 post tumor injection. In mice fed the ω-3 containing diet, there was a significant delay in tumor initiation and prolonged survival relative to the ω-6 diet-fed group. The tumor size on day 35 post tumor injection in the ω-3 group was 50% smaller and the frequencies of pulmonary and bone metastases were significantly lower relative to the ω-6 group. Similarly, the incidence/frequencies and/or size of cardiac, renal, ovarian metastases were significantly lower in mice fed the ω-3 diet. The analyses of the tumor microenvironment showed that tumors in the ω-3 group had significantly lower numbers of proliferating tumor cells (Ki67+)/high power field (HPF), and higher numbers of apoptotic tumor cells (TUNEL+)/HPF, lower neo-vascularization (CD31+ vessels/HPF), infiltration by neutrophil elastase+ cells, and macrophages (F4/80+) relative to the tumors from the ω-6 group. Further, in tumors from the ω-3 diet-fed mice, T-cell infiltration was 102% higher resulting in a neutrophil to T-lymphocyte ratio (NLR) that was 76% lower (p < 0.05). Direct correlations were observed between NLR with tumor size and T-cell infiltration with the number of apoptotic tumor cells. qRT-PCR analysis revealed that tumor IL10 mRNA levels were significantly higher (six-fold) in the tumors from mice fed the ω-3 diet and inversely correlated with the tumor size. Our data suggest that dietary LC-ω-3FAs modulates the mammary tumor microenvironment slowing tumor growth, and reducing metastases to both common and less preferential organs resulting in prolonged survival. The surrogate analyses undertaken support a mechanism of action by dietary LC-ω-3FAs that includes, but is not limited to decreased infiltration by myeloid cells (neutrophils and macrophages), an increase in CD3+ lymphocyte infiltration and IL10 associated anti-inflammatory activity.



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