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  1. Article ; Online: Differential mitochondrial and cellular responses between H vs. J mtDNA haplogroup-containing human RPE transmitochondrial cybrid cells.

    Panvini, Ana Rubin / Gvritishvili, Anzor / Galvan, Hannah / Nashine, Sonali / Atilano, Shari R / Kenney, M Cristina / Tombran-Tink, Joyce

    Experimental eye research

    2022  Volume 219, Page(s) 109013

    Abstract: ... compare the effects of mtDNA haplogroups H and J on transcriptome regulation and cellular resilience ... mtDNA haplogroups H and J were created by fusing platelets obtained from normal individuals containing H ... to oxidative stress using 300 μM hydrogen peroxide (H ...

    Abstract Mitochondrial dysfunction is associated with several retinal degenerative diseases including Age-related Macular Degeneration (AMD). Human mitochondrial DNA (mtDNA) haplogroups are inherited from a common ancestral clan and are defined by specific sets of genetic differences. The purpose of this study was to determine and compare the effects of mtDNA haplogroups H and J on transcriptome regulation and cellular resilience to oxidative stress in human RPE cytoplasmic hybrid (cybrid) cell lines in vitro. ARPE-19 cybrid cell lines containing mtDNA haplogroups H and J were created by fusing platelets obtained from normal individuals containing H and J haplogroups with mitochondria-deficient (Rho0) ARPE-19 cell lines. These cybrids were exposed to oxidative stress using 300 μM hydrogen peroxide (H
    MeSH term(s) Calcium/metabolism ; DNA, Mitochondrial/genetics ; Humans ; Hydrogen Peroxide/metabolism ; Hydrogen Peroxide/pharmacology ; Macular Degeneration/genetics ; Macular Degeneration/metabolism ; Mitochondria/metabolism
    Chemical Substances DNA, Mitochondrial ; Hydrogen Peroxide (BBX060AN9V) ; Calcium (SY7Q814VUP)
    Language English
    Publishing date 2022-03-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 80122-7
    ISSN 1096-0007 ; 0014-4835
    ISSN (online) 1096-0007
    ISSN 0014-4835
    DOI 10.1016/j.exer.2022.109013
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: A 24-h activity profile and adiposity among children and adolescents

    David Janda / Aleš Gába / Ondřej Vencálek / Stuart J Fairclough / Jan Dygrýn / Lukáš Jakubec / Lukáš Rubín

    PLoS ONE, Vol 18, Iss 5, p e

    Does the difference between school and weekend days matter?

    2023  Volume 0285952

    Abstract: ... However, no study has addressed how 24-h activity profiles vary between structured and less structured days ... differences between school day and weekend day 24-h activity profiles and their associations with adiposity ... who wore wrist accelerometers for 24 hours a day for seven consecutive days. The 24-h activity profile ...

    Abstract Background Twenty-four-hour movement behaviours are gaining attention in the research community. However, no study has addressed how 24-h activity profiles vary between structured and less structured days and whether an unfavourable activity profile is associated with childhood obesity. We aimed to analyse differences between school day and weekend day 24-h activity profiles and their associations with adiposity indicators among children and adolescents. Methods Participants were 382 children and 338 adolescents who wore wrist accelerometers for 24 hours a day for seven consecutive days. The 24-h activity profile expressed by the average acceleration (AvAcc) and intensity gradient (IG) were estimated from multi-day raw accelerometer data. Adiposity indicators included body mass index (BMI) z-score, fat mass percentage (FM%), fat mass index (FMI), and visceral adipose tissue (VAT). Multiple linear regression of activity profile metrics and adiposity indicators was performed separately for school and weekend days. Results Weekend days AvAcc and IG were lower compared to school days in both age groups (p <0.001 for all). Specifically, AvAcc was lower by 9.4% and 11.3% in children and adolescents, respectively. IG on weekend days was lower (more negative) by 3.4% in children and 3.1% in adolescents. Among children, on school days AvAcc and IG were negatively associated with FM%, FMI, and VAT, whilst on weekend days AvAcc was positively associated with BMI z-score, FMI, and VAT (p < 0.05 for all). Among adolescents, negative associations were found between weekend day AvAcc and IG and FM% and FMI (p < 0.05 for all), respectively. Conclusions This study confirms the importance of 24-h activity profile as a potentially protective factor against excess adiposity. The variability of movement behaviours during structured and less structured days should be considered when optimizing the 24-h movement behaviours to prevent childhood obesity.
    Keywords Medicine ; R ; Science ; Q
    Subject code 796
    Language English
    Publishing date 2023-01-01T00:00:00Z
    Publisher Public Library of Science (PLoS)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: A 24-h activity profile and adiposity among children and adolescents: Does the difference between school and weekend days matter?

    Janda, David / Gába, Aleš / Vencálek, Ondřej / Fairclough, Stuart J / Dygrýn, Jan / Jakubec, Lukáš / Rubín, Lukáš

    PloS one

    2023  Volume 18, Issue 5, Page(s) e0285952

    Abstract: ... However, no study has addressed how 24-h activity profiles vary between structured and less structured days ... differences between school day and weekend day 24-h activity profiles and their associations with adiposity ... who wore wrist accelerometers for 24 hours a day for seven consecutive days. The 24-h activity profile ...

    Abstract Background: Twenty-four-hour movement behaviours are gaining attention in the research community. However, no study has addressed how 24-h activity profiles vary between structured and less structured days and whether an unfavourable activity profile is associated with childhood obesity. We aimed to analyse differences between school day and weekend day 24-h activity profiles and their associations with adiposity indicators among children and adolescents.
    Methods: Participants were 382 children and 338 adolescents who wore wrist accelerometers for 24 hours a day for seven consecutive days. The 24-h activity profile expressed by the average acceleration (AvAcc) and intensity gradient (IG) were estimated from multi-day raw accelerometer data. Adiposity indicators included body mass index (BMI) z-score, fat mass percentage (FM%), fat mass index (FMI), and visceral adipose tissue (VAT). Multiple linear regression of activity profile metrics and adiposity indicators was performed separately for school and weekend days.
    Results: Weekend days AvAcc and IG were lower compared to school days in both age groups (p <0.001 for all). Specifically, AvAcc was lower by 9.4% and 11.3% in children and adolescents, respectively. IG on weekend days was lower (more negative) by 3.4% in children and 3.1% in adolescents. Among children, on school days AvAcc and IG were negatively associated with FM%, FMI, and VAT, whilst on weekend days AvAcc was positively associated with BMI z-score, FMI, and VAT (p < 0.05 for all). Among adolescents, negative associations were found between weekend day AvAcc and IG and FM% and FMI (p < 0.05 for all), respectively.
    Conclusions: This study confirms the importance of 24-h activity profile as a potentially protective factor against excess adiposity. The variability of movement behaviours during structured and less structured days should be considered when optimizing the 24-h movement behaviours to prevent childhood obesity.
    MeSH term(s) Humans ; Child ; Adolescent ; Pediatric Obesity ; Adiposity ; Body Mass Index ; Sedentary Behavior ; Exercise
    Language English
    Publishing date 2023-05-18
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0285952
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  4. Article: The Surface Distributions of the Production of the Major Volatile Species, H

    Combi, Michael / Shou, Yinsi / Fougere, Nicolas / Tenishev, Valeriy / Altwegg, Kathrin / Rubin, Martin / Bockelée-Morvan, Dominique / Capaccioni, Fabrizio / Cheng, Yu-Chi / Fink, Uwe / Gombosi, Tamas / Hansen, Kenneth C / Huang, Zhenguang / Marshall, David / Toth, Gabor

    Icarus

    2019  Volume 335

    Abstract: ... species in the coma of the comet, H ...

    Abstract The Rosetta Orbiter Spectrometer for Ion and Neutral Analysis (ROSINA) suite of instruments operated throughout the over two years of the Rosetta mission operations in the vicinity of comet 67P/Churyumov-Gerasimenko. It measured gas densities and composition throughout the comet's atmosphere, or coma. Here we present two-years' worth of measurements of the relative densities of the four major volatile species in the coma of the comet, H
    Language English
    Publishing date 2019-10-20
    Publishing country United States
    Document type Journal Article
    ISSN 0019-1035
    ISSN 0019-1035
    DOI 10.1016/j.icarus.2019.113421
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  5. Article ; Online: Associations of novel 24-h accelerometer-derived metrics with adiposity in children and adolescents.

    Dygrýn, Jan / Medrano, María / Molina-Garcia, Pablo / Rubín, Lukáš / Jakubec, Lukáš / Janda, David / Gába, Aleš

    Environmental health and preventive medicine

    2021  Volume 26, Issue 1, Page(s) 66

    Abstract: Background: Further research is required to explore the associations between 24-h movement ... the associations between novel data-driven 24-h activity metrics and adiposity among children and adolescents ... for the most active time periods of the 24-h cycle were calculated from raw acceleration data. Adiposity ...

    Abstract Background: Further research is required to explore the associations between 24-h movement behaviours and health outcomes in the paediatric population. Therefore, this study aimed to examine the associations between novel data-driven 24-h activity metrics and adiposity among children and adolescents.
    Methods: The sample included 382 children (8-13 years) and 338 adolescents (14-18 years). The average acceleration (AvAcc) of activity, intensity gradient (IG), and metrics representing the initial acceleration for the most active time periods of the 24-h cycle were calculated from raw acceleration data. Adiposity measures included body mass index z-score, fat mass percentage (FM%), and visceral adipose tissue (VAT). Data analysis was performed using multiple linear regression adjusted for wear time, sex, maternal education level, and maternal overweight and obesity.
    Results: Children demonstrated higher values in all 24-h activity metrics than did adolescents (p < 0.001 for all). For children, the initial acceleration for the most active 2, 5, 15, and 30 min of the 24-h cycle were negatively associated with FM% (p ≤ 0.043 for all) and VAT (p <0.001 for all), respectively. For adolescents, the IG was negatively associated with FM% (p = 0.002) and VAT (p = 0.007). Moreover, initial acceleration for the most active 2, 5, 15, 30, 60, and 120 min were associated with FM% (p ≤ 0.007 for all) and with VAT (p ≤ 0.023 for all).
    Conclusions: The intensity distribution of activity and initial acceleration for the most active 2, 5, 15, 30, 60, and 120 min within the 24-h cycle are beneficial for the prevention of excess adiposity in the paediatric population.
    MeSH term(s) Accelerometry ; Adiposity/physiology ; Adolescent ; Child ; Cross-Sectional Studies ; Czech Republic ; Exercise/physiology ; Female ; Humans ; Male
    Language English
    Publishing date 2021-06-12
    Publishing country England
    Document type Journal Article
    ZDB-ID 2018758-0
    ISSN 1347-4715 ; 1342-078X
    ISSN (online) 1347-4715
    ISSN 1342-078X
    DOI 10.1186/s12199-021-00987-5
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  6. Book ; Online: Volatiles in the H$_2$O and CO$_2$ ices of comet 67P/Churyumov-Gerasimenko

    Rubin, Martin / Altwegg, Kathrin / Berthelier, Jean-Jacques / Combi, Michael R. / De Keyser, Johan / Fuselier, Stephen A. / Gombosi, Tamas I. / Gudipati, Murthy S. / Hänni, Nora / Kipfer, Kristina A. / Ligterink, Niels F. W. / Müller, Daniel R. / Shou, Yinsi / Wampfler, Susanne F.

    2023  

    Abstract: ... at 67P, namely H$_2$O and CO$_2$, together with a suite of minor species for almost the entire mission ... reproduced by a linear combination of both H$_2$O and CO$_2$ densities. These findings bear similarities ... volatile species are trapped in H$_2$O and CO$_2$ ices. Our results do not show the presence of ices ...

    Abstract ESA's Rosetta spacecraft at comet 67P/Churyumov-Gerasimenko (67P) was the first mission that accompanied a comet over a substantial fraction of its orbit. On board was the ROSINA mass spectrometer suite to measure the local densities of the volatile species sublimating from the ices inside the comet's nucleus. Understanding the nature of these ices was a key goal of Rosetta. We analyzed the primary cometary molecules at 67P, namely H$_2$O and CO$_2$, together with a suite of minor species for almost the entire mission. Our investigation reveals that the local abundances of highly volatile species, such as CH$_4$ and CO, are reproduced by a linear combination of both H$_2$O and CO$_2$ densities. These findings bear similarities to laboratory-based temperature programmed desorption experiments of amorphous ices and imply that highly volatile species are trapped in H$_2$O and CO$_2$ ices. Our results do not show the presence of ices dominated by these highly volatile molecules. Most likely, they were lost due to thermal processing of 67P's interior prior to its deflection to the inner solar system. Deviations in the proportions co-released with H$_2$O and CO$_2$ can only be observed before the inbound equinox, when the comet was still far from the sun and the abundance of highly volatile molecules associated with CO$_2$ outgassing were lower. The corresponding CO$_2$ is likely seasonal frost, which sublimated and lost its trapped highly volatile species before re-freezing during the previous apparition. CO, on the other hand, was elevated during the same time and requires further investigation.

    Comment: This is a pre-copyedited, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The version of record is available online at: https://doi.org/10.1093/mnras/stad3005
    Keywords Astrophysics - Earth and Planetary Astrophysics
    Subject code 590
    Publishing date 2023-10-06
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Real-world prevalence across 159 872 patients with cancer supports the clinical utility of TMB-H to define metastatic solid tumors for treatment with pembrolizumab.

    Fabrizio, D / Cristescu, R / Albacker, L / Snyder, A / Ward, A / Lunceford, J / Aurora-Garg, D / Jin, F / Hopkins, J / Rubin, E / Hegde, P

    Annals of oncology : official journal of the European Society for Medical Oncology

    2021  Volume 32, Issue 9, Page(s) 1193–1194

    MeSH term(s) Antibodies, Monoclonal, Humanized ; Humans ; Neoplasms/drug therapy ; Neoplasms/epidemiology ; Prevalence
    Chemical Substances Antibodies, Monoclonal, Humanized ; pembrolizumab (DPT0O3T46P)
    Language English
    Publishing date 2021-05-31
    Publishing country England
    Document type Letter ; Comment
    ZDB-ID 1025984-3
    ISSN 1569-8041 ; 0923-7534
    ISSN (online) 1569-8041
    ISSN 0923-7534
    DOI 10.1016/j.annonc.2021.05.805
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  8. Article ; Online: How do short sleepers use extra waking hours? A compositional analysis of 24-h time-use patterns among children and adolescents.

    Gába, Aleš / Dygrýn, Jan / Štefelová, Nikola / Rubín, Lukáš / Hron, Karel / Jakubec, Lukáš / Pedišić, Željko

    The international journal of behavioral nutrition and physical activity

    2020  Volume 17, Issue 1, Page(s) 104

    Abstract: ... among children and adolescents.: Methods: Multi-day 24-h data on sleep, SB, LPA and MVPA were collected using ... adolescents with sleep duration of < 9 and < 8 h, respectively, were classified as short sleepers. Robust ...

    Abstract Background: To examine compositional associations between short sleep duration and sedentary behavior (SB), light physical activity (LPA) and moderate-to-vigorous physical activity (MVPA) among children and adolescents.
    Methods: Multi-day 24-h data on sleep, SB, LPA and MVPA were collected using accelerometers among 343 children (8-13 years old) and 316 adolescents (14-18 years old). Children and adolescents with sleep duration of < 9 and < 8 h, respectively, were classified as short sleepers. Robust compositional regression analysis was used to examine the associations between short sleep duration and the waking-time composition.
    Results: Seventy-one percent of children and 75.3% of adolescents were classified as short sleepers. In children, being a short sleeper was associated with higher SB by 95 min/day (p < 0.001) and lower MVPA by 16 min/day (p = 0.002). Specifically, it was associated with a higher amount of time spent in long sedentary bouts (β
    Conclusions: Among children and adolescents, short sleep duration seems to be highly prevalent and associated with less healthy waking time. Public health interventions and strategies to tackle the high prevalence of short sleep duration among children and adolescents are warranted.
    MeSH term(s) Accelerometry ; Adolescent ; Child ; Czech Republic/epidemiology ; Data Analysis ; Exercise ; Female ; Humans ; Male ; Sedentary Behavior ; Sleep
    Language English
    Publishing date 2020-08-14
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1479-5868
    ISSN (online) 1479-5868
    DOI 10.1186/s12966-020-01004-8
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  9. Article ; Online: Associations of novel 24-h accelerometer-derived metrics with adiposity in children and adolescents

    Jan Dygrýn / María Medrano / Pablo Molina-Garcia / Lukáš Rubín / Lukáš Jakubec / David Janda / Aleš Gába

    Environmental Health and Preventive Medicine, Vol 26, Iss 1, Pp 1-

    2021  Volume 8

    Abstract: Abstract Background Further research is required to explore the associations between 24-h movement ... the associations between novel data-driven 24-h activity metrics and adiposity among children and adolescents ... for the most active time periods of the 24-h cycle were calculated from raw acceleration data. Adiposity ...

    Abstract Abstract Background Further research is required to explore the associations between 24-h movement behaviours and health outcomes in the paediatric population. Therefore, this study aimed to examine the associations between novel data-driven 24-h activity metrics and adiposity among children and adolescents. Methods The sample included 382 children (8–13 years) and 338 adolescents (14–18 years). The average acceleration (AvAcc) of activity, intensity gradient (IG), and metrics representing the initial acceleration for the most active time periods of the 24-h cycle were calculated from raw acceleration data. Adiposity measures included body mass index z-score, fat mass percentage (FM%), and visceral adipose tissue (VAT). Data analysis was performed using multiple linear regression adjusted for wear time, sex, maternal education level, and maternal overweight and obesity. Results Children demonstrated higher values in all 24-h activity metrics than did adolescents (p < 0.001 for all). For children, the initial acceleration for the most active 2, 5, 15, and 30 min of the 24-h cycle were negatively associated with FM% (p ≤ 0.043 for all) and VAT (p <0.001 for all), respectively. For adolescents, the IG was negatively associated with FM% (p = 0.002) and VAT (p = 0.007). Moreover, initial acceleration for the most active 2, 5, 15, 30, 60, and 120 min were associated with FM% (p ≤ 0.007 for all) and with VAT (p ≤ 0.023 for all). Conclusions The intensity distribution of activity and initial acceleration for the most active 2, 5, 15, 30, 60, and 120 min within the 24-h cycle are beneficial for the prevention of excess adiposity in the paediatric population.
    Keywords Measurement ; Accelerometer ; Health ; Body composition ; Youth ; Public aspects of medicine ; RA1-1270
    Subject code 796
    Language English
    Publishing date 2021-06-01T00:00:00Z
    Publisher Komiyama Printing Co. Ltd
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: A role for H/ACA and C/D small nucleolar RNAs in viral replication.

    Murray, James L / Sheng, Jinsong / Rubin, Donald H

    Molecular biotechnology

    2014  Volume 56, Issue 5, Page(s) 429–437

    Abstract: ... encoding H/ACA-class and C/D-class small nucleolar RNAs (SNORAs and SNORDs, respectively). Of these, 79 ...

    Abstract We have employed gene-trap insertional mutagenesis to identify candidate genes whose disruption confer phenotypic resistance to lytic infection, in independent studies using 12 distinct viruses and several different cell lines. Analysis of >2,000 virus-resistant clones revealed >1,000 candidate host genes, approximately 20 % of which were disrupted in clones surviving separate infections with 2-6 viruses. Interestingly, there were 83 instances in which the insertional mutagenesis vector disrupted transcripts encoding H/ACA-class and C/D-class small nucleolar RNAs (SNORAs and SNORDs, respectively). Of these, 79 SNORAs and SNORDs reside within introns of 29 genes (predominantly protein-coding), while 4 appear to be independent transcription units. siRNA studies targeting candidate SNORA/Ds provided independent confirmation of their roles in infection when tested against cowpox virus, Dengue Fever virus, influenza A virus, human rhinovirus 16, herpes simplex virus 2, or respiratory syncytial virus. Significantly, eight of the nine SNORA/Ds targeted with siRNAs enhanced cellular resistance to multiple viruses suggesting widespread involvement of SNORA/Ds in virus-host interactions and/or virus-induced cell death.
    MeSH term(s) Cell Line ; Humans ; Mutagenesis, Insertional ; RNA, Small Interfering/genetics ; RNA, Small Nucleolar/genetics ; RNA, Small Nucleolar/physiology ; Virus Replication/genetics ; Virus Replication/physiology
    Chemical Substances RNA, Small Interfering ; RNA, Small Nucleolar
    Keywords covid19
    Language English
    Publishing date 2014-01-30
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 1193057-3
    ISSN 1559-0305 ; 1073-6085
    ISSN (online) 1559-0305
    ISSN 1073-6085
    DOI 10.1007/s12033-013-9730-0
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