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Authors = Jukka Takala ORCID = 0000-0001-5722-7052

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15 pages, 1696 KB  
Article
Brain Plasticity Modulator p75 Neurotrophin Receptor in Human Urine after Different Acute Brain Injuries—A Prospective Cohort Study
by Santtu Hellström, Antti Sajanti, Abhinav Srinath, Carolyn Bennett, Romuald Girard, Ying Cao, Janek Frantzén, Fredrika Koskimäki, Johannes Falter, Seán B. Lyne, Tomi Rantamäki, Riikka Takala, Jussi P. Posti, Susanna Roine, Jukka Puolitaival, Miro Jänkälä, Sulo Kolehmainen, Melissa Rahi, Jaakko Rinne, Eero Castrén and Janne Koskimäkiadd Show full author list remove Hide full author list
Biomedicines 2024, 12(1), 112; https://doi.org/10.3390/biomedicines12010112 - 5 Jan 2024
Cited by 1 | Viewed by 3383
Abstract
Acute brain injuries (ABIs) pose a substantial global burden, demanding effective prognostic indicators for outcomes. This study explores the potential of urinary p75 neurotrophin receptor (p75NTR) concentration as a prognostic biomarker, particularly in relation to unfavorable outcomes. The study involved 46 ABI patients, [...] Read more.
Acute brain injuries (ABIs) pose a substantial global burden, demanding effective prognostic indicators for outcomes. This study explores the potential of urinary p75 neurotrophin receptor (p75NTR) concentration as a prognostic biomarker, particularly in relation to unfavorable outcomes. The study involved 46 ABI patients, comprising sub-cohorts of aneurysmal subarachnoid hemorrhage, ischemic stroke, and traumatic brain injury. Furthermore, we had four healthy controls. Samples were systematically collected from patients treated at the University Hospital of Turku between 2017 and 2019, at early (1.50 ± 0.70 days) and late (9.17 ± 3.40 days) post-admission time points. Urinary p75NTR levels, measured by ELISA and normalized to creatinine, were compared against patients’ outcomes using the modified Rankin Scale (mRS). Early urine samples showed no significant p75NTR concentration difference between favorable and unfavorable mRS groups. In contrast, late samples exhibited a statistically significant increase in p75NTR concentrations in the unfavorable group (p = 0.033), demonstrating good prognostic accuracy (AUC = 70.9%, 95% CI = 53–89%, p = 0.03). Assessment of p75NTR concentration changes over time revealed no significant variation in the favorable group (p = 0.992) but a significant increase in the unfavorable group (p = 0.009). Moreover, p75NTR concentration was significantly higher in ABI patients (mean ± SD 40.49 ± 28.83–65.85 ± 35.04 ng/mg) compared to healthy controls (mean ± SD 0.54 ± 0.44 ng/mg), irrespective of sampling time or outcome (p < 0.0001). In conclusion, late urinary p75NTR concentrations emerged as a potential prognostic biomarker for ABIs, showing increased levels associated with unfavorable outcomes regardless of the specific type of brain injury. While early samples exhibited no significant differences, the observed late increases emphasize the time-dependent nature of this potential biomarker. Further validation in larger patient cohorts is crucial, highlighting the need for additional research to establish p75NTR as a reliable prognostic biomarker across various ABIs. Additionally, its potential role as a diagnostic biomarker warrants exploration. Full article
(This article belongs to the Special Issue Molecular Mechanisms and Novel Therapies for Brain Injury)
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20 pages, 674 KB  
Article
Development of the “National Asbestos Profile” to Eliminate Asbestos-Related Diseases in 195 Countries
by Diana Arachi, Sugio Furuya, Annette David, Alexander Mangwiro, Odgerel Chimed-Ochir, Kenneth Lee, Peter Tighe, Jukka Takala, Tim Driscoll and Ken Takahashi
Int. J. Environ. Res. Public Health 2021, 18(4), 1804; https://doi.org/10.3390/ijerph18041804 - 12 Feb 2021
Cited by 17 | Viewed by 9156
Abstract
Worldwide, 230,000+ people die annually from asbestos-related diseases (ARDs). The World Health Organization (WHO) recommends that countries develop a National Asbestos Profile (NAP) to eliminate ARDs. For 195 countries, we assessed the global status of NAPs (A: bona fide NAP, B: proxy NAP, [...] Read more.
Worldwide, 230,000+ people die annually from asbestos-related diseases (ARDs). The World Health Organization (WHO) recommends that countries develop a National Asbestos Profile (NAP) to eliminate ARDs. For 195 countries, we assessed the global status of NAPs (A: bona fide NAP, B: proxy NAP, C: relevant published information, D: no relevant information) by national income (HI: high, UMI: upper-middle, LMI: lower-middle, LI: low), asbestos bans (banned, no-ban) and public data availability. Fourteen (7% of 195) countries were category A (having a bona fide NAP), while 98, 51 and 32 countries were categories B, C and D, respectively. Of the 14 category-A countries, 8, 3 and 3 were LMI, UMI and HI, respectively. Development of a bona fide NAP showed no gradient by national income. The proportions of countries having a bona fide NAP were similar between asbestos-banned and no-ban countries. Public databases useful for developing NAPs contained data for most countries. Irrespective of the status of national income or asbestos ban, most countries have not developed a NAP despite having the potential. The global status of NAP is suboptimal. Country-level data on asbestos and ARDs in public databases can be better utilized to develop NAPs for globally eliminating ARDs. Full article
(This article belongs to the Special Issue Asbestos Exposure and Health Impact)
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13 pages, 1595 KB  
Article
Burden of Mesothelioma Deaths by National Income Category: Current Status and Future Implications
by Odgerel Chimed-Ochir, Diana Arachi, Tim Driscoll, Ro-Ting Lin, Jukka Takala and Ken Takahashi
Int. J. Environ. Res. Public Health 2020, 17(18), 6900; https://doi.org/10.3390/ijerph17186900 - 21 Sep 2020
Cited by 29 | Viewed by 4159
Abstract
Background: This study compares estimates of the global-level mesothelioma burden with a focus on how existing national mortality data were utilized and further assesses the interrelationship of country-level mesothelioma burden and asbestos use with national income status. Methods: Country-level mesothelioma deaths in the [...] Read more.
Background: This study compares estimates of the global-level mesothelioma burden with a focus on how existing national mortality data were utilized and further assesses the interrelationship of country-level mesothelioma burden and asbestos use with national income status. Methods: Country-level mesothelioma deaths in the WHO Mortality Database as of December 2019 were analyzed by national income category of countries in terms of data availability and reliability. Numbers of mesothelioma deaths from the study of Odgerel et al. were reanalyzed to assess country-level mesothelioma death burdens by national income status. Results: Among 80 high-income countries, 54 (68%) reported mesothelioma to the WHO and 26 (32%) did not, and among 60 upper middle-income countries, the respective numbers (proportions) were 39 (65%) countries and 21 (35%) countries, respectively. In contrast, among 78 low- and lower middle-income countries, only 11 (14%) reported mesothelioma deaths while 67 (86%) did not. Of the mesothelioma deaths, 29,854 (78%) were attributed to high- and upper middle-income countries, and 8534 (22%) were attributed to low- and lower middle- income countries. Conclusions: The global mesothelioma burden, based on reported numbers, is currently shouldered predominantly by high-income countries; however, mesothelioma burdens will likely manifest soon in upper middle-income and eventually in low and lower middle-income countries. Full article
(This article belongs to the Special Issue Asbestos and Health)
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19 pages, 2012 KB  
Article
Challenges and Solutions for Non-Timber Forest Product Businesses in Finland–An Application of the SODA Analysis
by Jukka Tikkanen, Tuomo Takala, Marja-Liisa Järvelä, Mikko Kurttila and Henri Vanhanen
Forests 2020, 11(7), 753; https://doi.org/10.3390/f11070753 - 12 Jul 2020
Cited by 12 | Viewed by 7061
Abstract
This study aims to present a holistic image of the strategic development needs and potential solutions within the Finnish non-timber forest product (NTFP) business sector and demonstrate a new hybrid methodology for collaborative strategy formulation. The perceived challenges and solutions were collected with [...] Read more.
This study aims to present a holistic image of the strategic development needs and potential solutions within the Finnish non-timber forest product (NTFP) business sector and demonstrate a new hybrid methodology for collaborative strategy formulation. The perceived challenges and solutions were collected with the 635 group-working method in a nationwide series of NTFP actor workshops. The analysis applied the Strategic Option Development and Analysis (SODA) approach and the formal network analysis. Business actors emphasised two complex and interrelated aims of development at the core of the business activity: (1) to improve the profitability of the NTFP business and (2) to facilitate the growth of the sector. The present bottleneck is perceived in the raw material acquisition and productising, and many wider development themes, such as business logic and sustainability, received little attention. Full article
(This article belongs to the Section Forest Economics, Policy, and Social Science)
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11 pages, 2271 KB  
Article
Global Asbestos Disaster
by Sugio Furuya, Odgerel Chimed-Ochir, Ken Takahashi, Annette David and Jukka Takala
Int. J. Environ. Res. Public Health 2018, 15(5), 1000; https://doi.org/10.3390/ijerph15051000 - 16 May 2018
Cited by 191 | Viewed by 44615
Abstract
Introduction: Asbestos has been used for thousands of years but only at a large industrial scale for about 100–150 years. The first identified disease was asbestosis, a type of incurable pneumoconiosis caused by asbestos dust and fibres. The latest estimate of global [...] Read more.
Introduction: Asbestos has been used for thousands of years but only at a large industrial scale for about 100–150 years. The first identified disease was asbestosis, a type of incurable pneumoconiosis caused by asbestos dust and fibres. The latest estimate of global number of asbestosis deaths from the Global Burden of Disease estimate 2016 is 3495. Asbestos-caused cancer was identified in the late 1930’s but despite today’s overwhelming evidence of the strong carcinogenicity of all asbestos types, including chrysotile, it is still widely used globally. Various estimates have been made over time including those of World Health Organization and International Labour Organization: 107,000–112,000 deaths. Present estimates are much higher. Objective: This article summarizes the special edition of this Journal related to asbestos and key aspects of the past and present of the asbestos problem globally. The objective is to collect and provide the latest evidence of the magnitude of asbestos-related diseases and to provide the present best data for revitalizing the International Labor Organization/World Health Organization Joint Program on Asbestos-related Diseases. Methods: Documentation on asbestos-related diseases, their recognition, reporting, compensation and prevention efforts were examined, in particular from the regulatory and prevention point of view. Estimated global numbers of incidence and mortality of asbestos-related diseases were examined. Results: Asbestos causes an estimated 255,000 deaths (243,223–260,029) annually according to latest knowledge, of which work-related exposures are responsible for 233,000 deaths (222,322–242,802). In the European Union, United States of America and in other high income economies (World Health Organization regional classification) the direct costs for sickness, early retirement and death, including production losses, have been estimated to be very high; in the Western European countries and European Union, and equivalent of 0.70% of the Gross Domestic Product or 114 × 109 United States Dollars. Intangible costs could be much higher. When applying the Value of Statistical Life of 4 million EUR per cancer death used by the European Commission, we arrived at 410 × 109 United States Dollars loss related to occupational cancer and 340 × 109 related to asbestos exposure at work, while the human suffering and loss of life is impossible to quantify. The numbers and costs are increasing practically in every country and region in the world. Asbestos has been banned in 55 countries but is used widely today; some 2,030,000 tons consumed annually according to the latest available consumption data. Every 20 tons of asbestos produced and consumed kills a person somewhere in the world. Buying 1 kg of asbestos powder, e.g., in Asia, costs 0.38 United States Dollars, and 20 tons would cost in such retail market 7600 United States Dollars. Conclusions: Present efforts to eliminate this man-made problem, in fact an epidemiological disaster, and preventing exposures leading to it are insufficient in most countries in the world. Applying programs and policies, such as those for the elimination of all kind of asbestos use—that is banning of new asbestos use and tight control and management of existing structures containing asbestos—need revision and resources. The International Labor Organization/World Health Organization Joint Program for the Elimination of Asbestos-Related Diseases needs to be revitalized. Exposure limits do not protect properly against cancer but for asbestos removal and equivalent exposure elimination work, we propose a limit value of 1000 fibres/m3. Full article
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17 pages, 1777 KB  
Article
Interdiffusion and Spinodal Decomposition in Electrically Conducting Polymer Blends
by Antti Takala, Päivi Takala, Jukka Seppälä and Kalle Levon
Polymers 2015, 7(8), 1410-1426; https://doi.org/10.3390/polym7081410 - 4 Aug 2015
Cited by 2 | Viewed by 6747
Abstract
The impact of phase morphology in electrically conducting polymer composites has become essential for the efficiency of the various functional applications, in which the continuity of the electroactive paths in multicomponent systems is essential. For instance in bulk heterojunction organic solar cells, where [...] Read more.
The impact of phase morphology in electrically conducting polymer composites has become essential for the efficiency of the various functional applications, in which the continuity of the electroactive paths in multicomponent systems is essential. For instance in bulk heterojunction organic solar cells, where the light-induced electron transfer through photon absorption creating excitons (electron-hole pairs), the control of diffusion of the spatially localized excitons and their dissociation at the interface and the effective collection of holes and electrons, all depend on the surface area, domain sizes, and connectivity in these organic semiconductor blends. We have used a model semiconductor polymer blend with defined miscibility to investigate the phase separation kinetics and the formation of connected pathways. Temperature jump experiments were applied from a miscible region of semiconducting poly(alkylthiophene) (PAT) blends with ethylenevinylacetate-elastomers (EVA) and the kinetics at the early stages of phase separation were evaluated in order to establish bicontinuous phase morphology via spinodal decomposition. The diffusion in the blend was followed by two methods: first during a miscible phase separating into two phases: from the measurement of the spinodal decomposition. Secondly the diffusion was measured by monitoring the interdiffusion of PAT film into the EVA film at elected temperatures and eventually compared the temperature dependent diffusion characteristics. With this first quantitative evaluation of the spinodal decomposition as well as the interdiffusion in conducting polymer blends, we show that a systematic control of the phase separation kinetics in a polymer blend with one of the components being electrically conducting polymer can be used to optimize the morphology. Full article
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4 pages, 303 KB  
Case Report
Preserved Cerebral Function After Resuscitation and Induction of Hypothermia with Packed Snow
by Alexander J. Pfister, Patrik R. Schwab, Andreas Wahl, Jukka Takala, Bernhard Meier and Carlo Höfliger
Cardiovasc. Med. 2010, 13(9), 284; https://doi.org/10.4414/cvm.2010.01524 - 15 Sep 2010
Viewed by 130
Abstract
Objective: The objective is to report an easy and fast way of out-of-hospital induction of mild therapeutic hypothermia after prolonged cardiopulmonary resuscitation. Method: Retrospective case report. Case reports: We report two cases of witnessed out-of-hospital cardiac arrest at an alpine ski resort. Both [...] Read more.
Objective: The objective is to report an easy and fast way of out-of-hospital induction of mild therapeutic hypothermia after prolonged cardiopulmonary resuscitation. Method: Retrospective case report. Case reports: We report two cases of witnessed out-of-hospital cardiac arrest at an alpine ski resort. Both patients underwent prolonged cardiopulmonary resuscitation due to persistent ventricular fibrillation. On scene, mild therapeutic hypothermia was induced with packed snow either after return of spontaneous circulation or already during active resuscitation. For percutaneous coronary intervention, the patients were airlifted to a tertiary cardiology centre. During the 16 minute flight, they both reached the hypothermia target temperature of 33 ± 1 °C and were kept hypothermic for 24 hours. After active rewarming and extubation, the patients recovered completely and did not suffer from any neurological dysfunction. Discussion: We attribute the excellent outcome to the resolute implementation of the resuscitation and the early out-of-hospital onset of mild therapeutic hypothermia. Full article
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