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Article: Early lateral root formation in response to calcium and nickel shows variation within disjunct populations of

Veatch-Blohm, Maren E / Medina, Gustavo / Butler, Jane

2023 Volume 9, Issue 2, Page(s) e13632

Abstract: Root architecture is important in nutrient uptake and avoidance of toxic compounds within the soil. ...

Abstract	Root architecture is important in nutrient uptake and avoidance of toxic compounds within the soil.
Language	English
Publishing date	2023-02-10
Publishing country	England
Document type	Journal Article
ZDB-ID	2835763-2
ISSN	2405-8440
ISSN	2405-8440
DOI	10.1016/j.heliyon.2023.e13632
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Graded onset of parasternal intercostal inspiratory activity detected with surface electromyography in healthy young females and males.

Hudson, Anna L / Luu, Billy L / Gandevia, Simon C / Butler, Jane E

Journal of applied physiology (Bethesda, Md. : 1985)

2024 Volume 136, Issue 4, Page(s) 695–706

Abstract: Intramuscular recordings of single motor unit activity from parasternal intercostal muscles show a rostrocaudal gradient in timing and amplitude of inspiratory activity. This study determined the feasibility of surface electromyographic activity (EMG) to ...

Abstract	Intramuscular recordings of single motor unit activity from parasternal intercostal muscles show a rostrocaudal gradient in timing and amplitude of inspiratory activity. This study determined the feasibility of surface electromyographic activity (EMG) to measure graded parasternal intercostal activity in young females and males during quiet breathing and breathing with inspiratory resistive loads. Surface EMGs were recorded from the 1st-to-5th parasternal intercostal muscles during 10 min of breathing. EMGs were processed to remove 50 Hz and electrocardiogram artifacts and integrated. Amplitude and onset time of inspiratory activity were measured from waveform averages triggered at the onset of inspiratory flow. Onset times were measured independently by two assessors, blinded to interspace and EMG scale, with excellent agreement (ICC
MeSH term(s)	Humans ; Male ; Female ; Electromyography/methods ; Respiration ; Intercostal Muscles/physiology
Language	English
Publishing date	2024-02-08
Publishing country	United States
Document type	Journal Article
ZDB-ID	219139-8
ISSN	1522-1601 ; 0021-8987 ; 0161-7567 ; 8750-7587
ISSN (online)	1522-1601
ISSN	0021-8987 ; 0161-7567 ; 8750-7587
DOI	10.1152/japplphysiol.00604.2023
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Article ; Online: Comparison of two inspiratory muscle training protocols in people with spinal cord injury: a secondary analysis.

Palermo, Anne E / Butler, Jane E / Boswell-Ruys, Claire L

Spinal cord series and cases

2023 Volume 9, Issue 1, Page(s) 42

Abstract: Study design/setting: Secondary analysis.: Objectives: To compare the change in maximal inspiratory pressure (PI: Methods: Data originated from two published studies. Participants completed flow-resistive IMT (F-IMT) at 80% daily PI: Results: ... ...

Abstract	Study design/setting: Secondary analysis. Objectives: To compare the change in maximal inspiratory pressure (PI Methods: Data originated from two published studies. Participants completed flow-resistive IMT (F-IMT) at 80% daily PI Results: Over 4 weeks, there was no difference in the change in PI Conclusions: Our findings support both methods of IMT as the change in PI
MeSH term(s)	Humans ; Physical Therapy Modalities ; Respiratory Muscles/physiology ; Respiratory Therapy/methods ; Spinal Cord Injuries
Language	English
Publishing date	2023-08-12
Publishing country	England
Document type	Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't
ISSN	2058-6124
ISSN (online)	2058-6124
DOI	10.1038/s41394-023-00594-2
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Article ; Online: Early lateral root formation in response to calcium and nickel shows variation within disjunct populations of Arabidopsis lyrata spp. lyrata

Maren E. Veatch-Blohm / Gustavo Medina / Jane Butler

Heliyon, Vol 9, Iss 2, Pp e13632- (2023)

2023

Abstract: Root architecture is important in nutrient uptake and avoidance of toxic compounds within the soil. Arabidopsis lyrata spp. lyrata has widespread distribution in disjunct environments that encounter unique stressors starting at germination. Five ... ...

Abstract	Root architecture is important in nutrient uptake and avoidance of toxic compounds within the soil. Arabidopsis lyrata spp. lyrata has widespread distribution in disjunct environments that encounter unique stressors starting at germination. Five populations of A. lyrata spp. lyrata show local adaptation to Nickel (Ni) but cross-tolerance to variations in Calcium (Ca) concentration within the soil. Differentiation among the populations begins early in development and appears to impact timing of lateral root formation; therefore the purpose of the study was to understand changes in root architecture and root exploration in response to Ca and Ni within the first three weeks of growth. Lateral root formation was first characterized under one concentration of Ca and Ni. Lateral root formation and tap root length were reduced in all five populations in response to Ni compared to Ca, with the least reduction in the three serpentine populations. When the populations were exposed to a gradient (either Ca or Ni) there were differences in population response based on the nature of the gradient. Start side was the greatest determinant of root exploration and lateral root formation under a Ca gradient, while population was the greatest determinant of root exploration and lateral root formation under a Ni gradient. All populations exhibited about the same frequency of root exploration under a Ca gradient, while the serpentine populations exhibited much higher levels of root exploration under a Ni gradient compared to the two non-serpentine populations. Differences among populations in response to Ca and Ni demonstrate the importance of stress responses early in development, particularly in species that have widespread distribution among disparate habitats.
Keywords	Root foraging ; Serpentine ; Nickel tolerance ; Calcium ; Science (General) ; Q1-390 ; Social sciences (General) ; H1-99
Subject code	580
Language	English
Publishing date	2023-02-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: "We want to include him in that journey": A qualitative descriptive study of parental experiences and considerations for sibling inclusion in the paediatric ICU.

Butler, Ashleigh E / Clark, Tara-Jane / Glazner, Judith / Giallo, Rebecca / Copnell, Beverley

Intensive & critical care nursing

2024 Volume 83, Page(s) 103696

Abstract: Objectives: Siblings are an important yet often forgotten part of the paediatric intensive care unit (PICU) family experience. Commonly, siblings are supported through the experience by their parents; however, very little is known about parental ... ...

Abstract	Objectives: Siblings are an important yet often forgotten part of the paediatric intensive care unit (PICU) family experience. Commonly, siblings are supported through the experience by their parents; however, very little is known about parental experiences of providing this support. This study aims to explore parental experiences of supporting sibling inclusion in PICU. Research methodology/design: This study utilised a qualitative descriptive approach to conduct semi-structured interviews with 6 parents of 5 children with congenital heart disease who had spent time in PICU. Data were analysed using reflexive thematic analysis. Setting: Australian PICUs. Findings: Parental considerations and experiences for sibling inclusion were identified across three key phases: Pre-inclusion, The PICU visit, and Post-inclusion. Prior to including siblings in PICU, parents considered various ways of sharing information with siblings, and weighed up the risks and benefits of bringing siblings into PICU. Parents also recounted a number of challenges and facilitators to a positive sibling experience in PICU, including supportive staff and fun activities. Finally, parents, identified that siblings require ongoing support after their inclusion in PICU and made suggestions for ongoing availability of information and supportive resources. Conclusions: This study has illuminated key parental experiences when supporting sibling inclusion in PICU before, during and after their visit. By understanding these parental experiences, PICU staff can work with and support parents where needed, helping to achieve a positive sibling inclusion experience. Implications for clinical practice: Parents need ongoing support to explain the PICU to siblings of critically ill children and may benefit from specific visual resources to aid communication. In addition, PICUs should aim to ensure the physical layout is supportive of sibling needs, with dedicated spaces for siblings to play and take time out during their experience.
Language	English
Publishing date	2024-04-11
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	1105892-4
ISSN	1532-4036 ; 0964-3397
ISSN (online)	1532-4036
ISSN	0964-3397
DOI	10.1016/j.iccn.2024.103696
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Article ; Online: Muscle electromyographic activity normalized to maximal muscle activity, not to Mmax, better represents voluntary activation.

Diong, Joanna / Kishimoto, Kenzo C / Butler, Jane E / Héroux, Martin E

PloS one

2022 Volume 17, Issue 11, Page(s) e0277947

Abstract: ... contractions cannot be reliably obtained (e.g. in people with muscle paralysis, anterior cruciate ligament ...

Abstract	In human applied physiology studies, the amplitude of recorded muscle electromyographic activity (EMG) is often normalized to maximal EMG recorded during a maximal voluntary contraction. When maximal contractions cannot be reliably obtained (e.g. in people with muscle paralysis, anterior cruciate ligament injury, or arthritis), EMG is sometimes normalized to the maximal compound muscle action potiential evoked by stimulation, the Mmax. However, it is not known how these two methods of normalization affect the conclusions and comparability of studies. To address this limitation, we investigated the relationship between voluntary muscle activation and EMG normalized either to maximal EMG or to Mmax. Twenty-five able-bodied adults performed voluntary isometric ankle plantarflexion contractions to a range of percentages of maximal voluntary torque. Ankle torque, plantarflexor muscle EMG, and voluntary muscle activation measured by twitch interpolation were recorded. EMG recorded at each contraction intensity was normalized to maximal EMG or to Mmax for each plantarflexor muscle, and the relationship between the two normalization approaches quantified. A slope >1 indicated EMG amplitude normalized to maximal EMG (vertical axis) was greater than EMG normalized to Mmax (horizontal axis). Mean estimates of the slopes were large and had moderate precision: soleus 8.7 (95% CI 6.9 to 11.0), medial gastrocnemius 13.4 (10.5 to 17.0), lateral gastrocnemius 11.4 (9.4 to 14.0). This indicates EMG normalized to Mmax is approximately eleven times smaller than EMG normalized to maximal EMG. Normalization to maximal EMG gave closer approximations to the level of voluntary muscle activation assessed by twitch interpolation.
MeSH term(s)	Adult ; Humans ; Electromyography/methods ; Muscle Contraction/physiology ; Isometric Contraction/physiology ; Torque ; Muscle, Skeletal/physiology
Language	English
Publishing date	2022-11-21
Publishing country	United States
Document type	Journal Article
ZDB-ID	2267670-3
ISSN	1932-6203 ; 1932-6203
ISSN (online)	1932-6203
ISSN	1932-6203
DOI	10.1371/journal.pone.0277947
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Article ; Online: Assessment of 'neural respiratory drive' from the parasternal intercostal muscles.

Hudson, Anna L / Butler, Jane E

Respiratory physiology & neurobiology

2018 Volume 252-253, Page(s) 16–17

MeSH term(s)	Biomarkers ; Dyspnea ; Electromyography ; Exercise Test ; Humans ; Intercostal Muscles
Chemical Substances	Biomarkers
Language	English
Publishing date	2018-03-12
Publishing country	Netherlands
Document type	Editorial ; Research Support, Non-U.S. Gov't ; Comment
ZDB-ID	2077867-3
ISSN	1878-1519 ; 1569-9048
ISSN (online)	1878-1519
ISSN	1569-9048
DOI	10.1016/j.resp.2017.11.003
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Article ; Online: Early lateral root formation in response to calcium and nickel shows variation within disjunct populations of Arabidopsis lyrata spp. lyrata

Veatch-Blohm, Maren E. / Medina, Gustavo / Butler, Jane

Heliyon. , p.e13632-

2023

Abstract	Root architecture is important in nutrient uptake and avoidance of toxic compounds within the soil. Arabidopsis lyrata spp. lyrata has widespread distribution in disjunct environments that encounter unique stressors starting at germination. Five populations of A. lyrata spp. lyrata show local adaptation to Nickel (Ni) but cross-tolerance to variations in Calcium (Ca) concentration within the soil. Differentiation among the populations begins early in development and appears to impact timing of lateral root formation; therefore the purpose of the study was to understand changes in root architecture and root exploration in response to Ca and Ni within the first three weeks of growth. Lateral root formation was first characterized under one concentration of Ca and Ni. Lateral root formation and tap root length were reduced in all five populations in response to Ni compared to Ca, with the least reduction in the three serpentine populations. When the populations were exposed to a gradient (either Ca or Ni) there were differences in population response based on the nature of the gradient. Start side was the greatest determinant of root exploration and lateral root formation under a Ca gradient, while population was the greatest determinant of root exploration and lateral root formation under a Ni gradient. All populations exhibited about the same frequency of root exploration under a Ca gradient, while the serpentine populations exhibited much higher levels of root exploration under a Ni gradient compared to the two non-serpentine populations. Differences among populations in response to Ca and Ni demonstrate the importance of stress responses early in development, particularly in species that have widespread distribution among disparate habitats.
Keywords	Arabidopsis lyrata ; calcium ; germination ; lateral roots ; nickel ; nutrient uptake ; serpentine ; soil ; tap roots ; toxicity ; Root foraging ; Nickel tolerance
Language	English
Publishing place	Elsevier Ltd
Document type	Article ; Online
Note	Pre-press version ; Use and reproduction
ZDB-ID	2835763-2
ISSN	2405-8440
ISSN	2405-8440
DOI	10.1016/j.heliyon.2023.e13632
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: The detection and sensory perception of inspiratory resistive loads in people with chronic tetraplegia.

Luu, Billy L / Lewis, R H Chaminda / Gandevia, Simon C / Boswell-Ruys, Claire L / Butler, Jane E

Journal of applied physiology (Bethesda, Md. : 1985)

2022 Volume 133, Issue 5, Page(s) 1192–1201

Abstract: This study investigated sensations of breathing following tetraplegia. Fifteen people with chronic tetraplegia and fifteen healthy able-bodied controls matched for age, sex, height, and weight participated. Sensations of breathing were quantified by ... ...

Abstract	This study investigated sensations of breathing following tetraplegia. Fifteen people with chronic tetraplegia and fifteen healthy able-bodied controls matched for age, sex, height, and weight participated. Sensations of breathing were quantified by determining the threshold for detecting an added resistance during inspiration. In a separate task, the perceived magnitudes of six suprathreshold resistive loads were determined with a modified Borg scale. The detection threshold of 0.34 cmH
MeSH term(s)	Humans ; Sensation ; Respiration ; Respiratory Function Tests ; Quadriplegia ; Perception/physiology ; Airway Resistance
Language	English
Publishing date	2022-09-15
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	219139-8
ISSN	1522-1601 ; 0021-8987 ; 0161-7567 ; 8750-7587
ISSN (online)	1522-1601
ISSN	0021-8987 ; 0161-7567 ; 8750-7587
DOI	10.1152/japplphysiol.00064.2022
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Article ; Online: Effect of respiratory muscle training on load sensations in people with chronic tetraplegia: a secondary analysis of a randomised controlled trial.

Luu, Billy L / Lewis, R H Chaminda / McBain, Rachel A / Gandevia, Simon C / Boswell-Ruys, Claire L / Butler, Jane E

Spinal cord

2023 Volume 61, Issue 9, Page(s) 505–512

Abstract: Study design: Secondary analysis of a randomised controlled trial.: Objectives: Our primary study showed that increasing inspiratory muscle strength with training in people with chronic (>1 year) tetraplegia corresponded with reduced sensations of ... ...

Abstract	Study design: Secondary analysis of a randomised controlled trial. Objectives: Our primary study showed that increasing inspiratory muscle strength with training in people with chronic (>1 year) tetraplegia corresponded with reduced sensations of breathlessness when inspiration was loaded. This study investigated whether respiratory muscle training also affected the respiratory sensations for load detection and magnitude perception. Setting: Independent research institute in Sydney, Australia. Methods: Thirty-two adults with chronic tetraplegia participated in a 6-week, supervised training protocol. The active group trained the inspiratory muscles through progressive threshold loading. The sham group performed the same protocol with a fixed threshold load (3.6 cmH Results: Maximal inspiratory pressure (PI Conclusions: Training reduces the sensitivity of load sensations for a given change in pressure but not for a given change in contraction intensity.
MeSH term(s)	Adult ; Humans ; Spinal Cord Injuries/complications ; Breathing Exercises ; Academies and Institutes ; Quadriplegia ; Sensation
Language	English
Publishing date	2023-08-16
Publishing country	England
Document type	Randomized Controlled Trial ; Journal Article
ZDB-ID	1316161-1
ISSN	1476-5624 ; 1362-4393
ISSN (online)	1476-5624
ISSN	1362-4393
DOI	10.1038/s41393-023-00920-3
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