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Article ; Online: A higher-rank classification for rust fungi, with notes on genera.

Aime, M C / McTaggart, A R

2020 Volume 7, Page(s) 21–47

Abstract: The rust fungi ( ...

Abstract	The rust fungi (
Language	English
Publishing date	2020-11-13
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	3007859-3
ISSN	2589-3831 ; 2589-3823
ISSN (online)	2589-3831
ISSN	2589-3823
DOI	10.3114/fuse.2021.07.02
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Article ; Online: Divergent rainforest tree microbiomes between phases of the monsoon cycle, host plants and tissues.

Calvert, J / McTaggart, A / Carvalhais, L C / Rensink, S / Dennis, P G / Drenth, A / Shivas, R

Plant biology (Stuttgart, Germany)

2023 Volume 25, Issue 6, Page(s) 860–870

Abstract: The Australian Monsoon Tropics (AMT) contain some of the most biodiverse forests on the continent. Little is known about the dynamics of rainforest plant microbiomes in general, and there have been no community-level studies on Australian rainforest ... ...

Abstract	The Australian Monsoon Tropics (AMT) contain some of the most biodiverse forests on the continent. Little is known about the dynamics of rainforest plant microbiomes in general, and there have been no community-level studies on Australian rainforest endophytes, their seasonality, tissue and host specificity. We tested whether community composition of tropical tree endophytes (fungi and bacteria) differs: (i) at different points during a monsoon cycle, (ii) between leaf and stem tissues, (iii) between forest microclimates (gully/ridge), and between (iv) host plant species, and (v) host plant clade, using amplicon sequencing of the bacterial 16S and fungal ITS2 gene regions. Results indicated that the composition of rainforest plant microbiomes differs between wet and dry seasons, which may be explained by physiological shifts in host plants due to annual climate fluctuations from mesic to xeric. Endophyte microbiomes differed between leaves and stems. Distinct fungal communities were associated with host species and clades, with some trees enriched in a number of fungal taxa compared to host plants in other clades. Diversity of bacterial endophytes in plant stems increased in the dry season. We conclude that the microbiomes of tropical plants are responsive to monsoonal climate variation, are highly compartmentalised between plant tissues, and may be partly shaped by the relatedness of their host plants.
MeSH term(s)	Trees ; Rainforest ; Australia ; Microbiota ; Forests ; Endophytes
Language	English
Publishing date	2023-08-30
Publishing country	England
Document type	Journal Article
ZDB-ID	1464075-2
ISSN	1438-8677 ; 1435-8603
ISSN (online)	1438-8677
ISSN	1435-8603
DOI	10.1111/plb.13569
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Article ; Online: Untangling the taxonomy of dahlia mosaic virus.

Geering, Andrew D W / McTaggart, Alistair R / Teycheney, Pierre-Yves

Archives of virology

2022 Volume 167, Issue 11, Page(s) 2325–2329

Abstract: In this brief note, we review the taxonomic history of dahlia mosaic virus (DMV) and related viruses. DMV is the only officially recognized caulimovirus known to infect dahlia (Dahlia variabilis) plants, although this virus appears to be relatively rare ... ...

Abstract	In this brief note, we review the taxonomic history of dahlia mosaic virus (DMV) and related viruses. DMV is the only officially recognized caulimovirus known to infect dahlia (Dahlia variabilis) plants, although this virus appears to be relatively rare as a pathogen compared to a more recently described but unclassified caulimovirus called dahlia common mosaic virus (DCMV). We have undertaken a new set of analyses to test the hypothesis that DCMV represents a new caulimovirus species whose members infect dahlia, but we ultimately reject this hypothesis. A probable sequencing error was identified in the reference genome sequence of DMV, and consequently, we recommend that an alternative virus isolate be nominated as the exemplar for this species. In accordance with the new binomial nomenclatural system, it is proposed that the virus species be called "Caulimovirus dahliae".
MeSH term(s)	Caulimovirus ; Dahlia ; Phylogeny ; Viruses
Language	English
Publishing date	2022-08-15
Publishing country	Austria
Document type	Journal Article ; Review
ZDB-ID	7491-3
ISSN	1432-8798 ; 0304-8608
ISSN (online)	1432-8798
ISSN	0304-8608
DOI	10.1007/s00705-022-05567-8
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Article ; Online: Erratum for McTaggart et al., "First Canadian report of transmission of fluconazole-resistant

McTaggart, Lisa R / Eshaghi, AliReza / Hota, Susy / Poutanen, Susan M / Johnstone, Jennie / De Luca, Domenica G / Bharat, Amrita / Patel, Samir N / Kus, Julianne V

Journal of clinical microbiology

2024 Volume 62, Issue 2, Page(s) e0009824

Language	English
Publishing date	2024-01-26
Publishing country	United States
Document type	Journal Article ; Published Erratum
ZDB-ID	390499-4
ISSN	1098-660X ; 0095-1137
ISSN (online)	1098-660X
ISSN	0095-1137
DOI	10.1128/jcm.00098-24
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Article: Fungal clones win the battle, but recombination wins the war.

Drenth, André / McTaggart, Alistair R / Wingfield, Brenda D

IMA fungus

2019 Volume 10, Page(s) 18

Abstract: Clonal reproduction is common in fungi and fungal-like organisms during epidemics and invasion events. The success of clonal fungi shaped systems for their classification and some pathogens are tacitly treated as asexual. We argue that genetic ... ...

Abstract	Clonal reproduction is common in fungi and fungal-like organisms during epidemics and invasion events. The success of clonal fungi shaped systems for their classification and some pathogens are tacitly treated as asexual. We argue that genetic recombination driven by sexual reproduction must be a starting hypothesis when dealing with fungi for two reasons: (1) Clones eventually crash because they lack adaptability; and (2) fungi find a way to exchange genetic material through recombination, whether sexual, parasexual, or hybridisation. Successful clones may prevail over space and time, but they are the product of recombination and the next successful clone will inevitably appear. Fungal pathogen populations are dynamic rather than static, and they need genetic recombination to adapt to a changing environment.
Language	English
Publishing date	2019-10-29
Publishing country	England
Document type	Journal Article
ZDB-ID	2666116-0
ISSN	2210-6359 ; 2210-6340
ISSN (online)	2210-6359
ISSN	2210-6340
DOI	10.1186/s43008-019-0020-8
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Article ; Online: Discordance in tests used to detect inhibition of the P2Y12 receptor in patients undergoing interventional neuroradiology procedures.

Gegri, Mansour / Cheves, Tracey A / Anderson, Matthew N / McTaggart, Ryan / Sweeney, Joseph D

Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences

2022 Volume 29, Issue 6, Page(s) 655–664

Abstract: Background: Clopidogrel is an inhibitor of the P2Y12 platelet receptor but testing to demonstrate a drug effect is controversial since there are often discordant results between different tests methods.: Methods: Samples from patients taking ... ...

Abstract	Background: Clopidogrel is an inhibitor of the P2Y12 platelet receptor but testing to demonstrate a drug effect is controversial since there are often discordant results between different tests methods. Methods: Samples from patients taking clopidogrel prior to intracranial flow-diversion procedures were tested using light transmission aggregometry (LTA), whole blood impedance aggregometry (WBIA) and the VerifyNow device (VND). Samples were classified as concordant if all test results were either responsive (inhibition) or resistant. Discordant results were separated using the VND into those with a responsive versus a resistant test result. Results: Samples from 96 patients were studied. Concordance for all three tests was seen in 53/96 (55%) of samples, of which 41 (43%) were responsive and 12 (12%) were resistant. Discordance was observed in 43 samples (45%), 37 (28%) of which were caused by responsive VND and either a resistant WBIA or LTA and 6 (7%) of which were caused by a resistant VND but a responsive test result using either WBIA or LTA. These two discordant groups differed in both platelet count and hematocrit, but no such difference was present between the two concordant groups. Conclusion: Discordance in P2Y12 inhibition testing may be partly explained by sample platelet count and hematocrit.
MeSH term(s)	Humans ; Clopidogrel/therapeutic use ; Platelet Aggregation Inhibitors/pharmacology ; Platelet Aggregation Inhibitors/therapeutic use ; Ticlopidine/pharmacology ; Ticlopidine/therapeutic use ; Purinergic P2Y Receptor Antagonists/pharmacology ; Purinergic P2Y Receptor Antagonists/therapeutic use ; Platelet Function Tests/methods
Chemical Substances	Clopidogrel (A74586SNO7) ; Platelet Aggregation Inhibitors ; Ticlopidine (OM90ZUW7M1) ; Purinergic P2Y Receptor Antagonists
Language	English
Publishing date	2022-08-29
Publishing country	United States
Document type	Journal Article
ZDB-ID	1354913-3
ISSN	2385-2011 ; 1591-0199 ; 1123-9344
ISSN (online)	2385-2011
ISSN	1591-0199 ; 1123-9344
DOI	10.1177/15910199221122858
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Article ; Online: Antifungal Susceptibility of Clinical Yeast Isolates from a Large Canadian Reference Laboratory and Application of Whole-Genome Sequence Analysis To Elucidate Mechanisms of Acquired Resistance.

McTaggart, Lisa R / Cabrera, Ana / Cronin, Kirby / Kus, Julianne V

Antimicrobial agents and chemotherapy

2020 Volume 64, Issue 9

Abstract: To understand the epidemiology and susceptibility patterns of yeast infections in Ontario, Canada, we examined 4,715 clinical yeast isolates submitted to our laboratory for antifungal susceptibility testing from 2014 to 2018. ...

Abstract	To understand the epidemiology and susceptibility patterns of yeast infections in Ontario, Canada, we examined 4,715 clinical yeast isolates submitted to our laboratory for antifungal susceptibility testing from 2014 to 2018.
MeSH term(s)	Antifungal Agents/pharmacology ; Candida/drug effects ; Candida/genetics ; Drug Resistance, Fungal/genetics ; Echinocandins/pharmacology ; Genome, Fungal ; Humans ; Laboratories ; Microbial Sensitivity Tests ; Ontario ; Sequence Analysis ; Whole Genome Sequencing
Chemical Substances	Antifungal Agents ; Echinocandins
Language	English
Publishing date	2020-08-20
Publishing country	United States
Document type	Journal Article
ZDB-ID	217602-6
ISSN	1098-6596 ; 0066-4804
ISSN (online)	1098-6596
ISSN	0066-4804
DOI	10.1128/AAC.00402-20
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Zs.A 809: Show issues			Location: Je nach Verfügbarkeit (siehe Angabe bei Bestand) bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular Jg. 1995 - 2021: Lesesall (1.OG) ab Jg. 2022: Lesesaal (EG)
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Article ; Online: Influence of Infarct Morphology and Patterns on Cognitive Outcomes After Endovascular Thrombectomy.

Ospel, Johanna Maria / Rinkel, Leon / Ganesh, Aravind / Demchuk, Andrew / Joshi, Manish / Poppe, Alexandre / McTaggart, Ryan / Nogueira, Raul / Menon, Bijoy / Tymianski, Michael / Hill, Michael Douglas / Goyal, Mayank

Stroke

2024 Volume 55, Issue 5, Page(s) 1349–1358

Abstract: Background: To assess the association of qualitative and quantitative infarct characteristics and 3 cognitive outcome tests, namely the Montreal Cognitive Assessment (MOCA) for mild cognitive impairment, the Boston Naming Test for visual confrontation ... ...

Abstract	Background: To assess the association of qualitative and quantitative infarct characteristics and 3 cognitive outcome tests, namely the Montreal Cognitive Assessment (MOCA) for mild cognitive impairment, the Boston Naming Test for visual confrontation naming, and the Sunnybrook Neglect Assessment Procedure for neglect, in large vessel occlusion stroke. Methods: Secondary observational cohort study using data from the randomized-controlled ESCAPE-NA1 trial (Safety and Efficacy of Nerinetide in Subjects Undergoing Endovascular Thrombectomy for Stroke), in which patients with large vessel occlusion undergoing endovascular treatment were randomized to receive either intravenous Nerinetide or placebo. MOCA, Sunnybrook Neglect Assessment Procedure, and 15-item Boston Naming Test were obtained at 90 days. Total infarct volume, gray matter, and white matter infarct volumes were manually measured on 24-hour follow-up imaging. Infarcts were also visually classified as either involving the gray matter only or both the gray and white matter and scattered versus territorial. Associations of infarct variables and cognitive outcomes were analyzed using multivariable ordinal or binary logistic regression models. Results: Of 1105 patients enrolled in ESCAPE-NA1, 1026 patients with visible infarcts on 24-hour follow-up imaging were included. MOCA and Sunnybrook Neglect Assessment Procedure were available for 706 (68.8%) patients and the 15-item Boston Naming Test was available for 682 (66.5%) patients. Total infarct volume was associated with worse MOCA scores (adjusted common odds ratio per 10 mL increase, 1.05 [95% CI, 1.04-1.06]). After adjusting for baseline variables and total infarct volume, mixed gray and white matter involvement (versus gray matter-only adjusted common odds ratio, 1.92 [95% CI, 1.37-2.69]), white matter infarct volume (adjusted common odds ratio per 10 mL increase 1.36 [95% CI, 1.18-1.58]) and territorial (versus scattered) infarct pattern (adjusted common odds ratio, 1.65 [95% CI, 1.15-2.38]) were associated with worse MOCA scores. Results for Sunnybrook Neglect Assessment Procedure and 15-item Boston Naming Test were similar, except for the territorial infarct pattern, which did not reach statistical significance in multivariable analysis. Conclusions: Besides total infarct volume, infarcts that involve the white matter and that show a territorial distribution were associated with worse cognitive outcomes, even after adjusting for total infarct volume.
Language	English
Publishing date	2024-03-21
Publishing country	United States
Document type	Journal Article
ZDB-ID	80381-9
ISSN	1524-4628 ; 0039-2499 ; 0749-7954
ISSN (online)	1524-4628
ISSN	0039-2499 ; 0749-7954
DOI	10.1161/STROKEAHA.123.045825
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Article ; Online: CT Perfusion Does Not Modify the Effect of Reperfusion in Patients with Acute Ischemic Stroke Undergoing Endovascular Treatment in the ESCAPE-NA1 Trial.

Rex, N B / McDonough, R V / Ospel, J M / Kashani, N / Sehgal, A / Fladt, J C / McTaggart, R A / Nogueira, R / Menon, B / Demchuk, A M / Tymianski, M / Hill, M D / Goyal, M

AJNR. American journal of neuroradiology

2023 Volume 44, Issue 9, Page(s) 1045–1049

Abstract: Background and purpose: Although reperfusion is associated with improved outcomes in patients with acute ischemic stroke undergoing endovascular treatment, many patients still do poorly. We investigated whether CTP modifies the effect of near-complete ... ...

Abstract	Background and purpose: Although reperfusion is associated with improved outcomes in patients with acute ischemic stroke undergoing endovascular treatment, many patients still do poorly. We investigated whether CTP modifies the effect of near-complete reperfusion on clinical outcomes, ie, whether poor clinical outcomes despite near-complete reperfusion can be partly or fully explained by CTP findings. Materials and methods: Data are from the Safety and Efficacy of Nerinetide in Subjects Undergoing Endovascular Thrombectomy for Stroke (ESCAPE-NA1) trial. Admission CTP was processed using RAPID software, generating relative CBF and CBV volume maps at standard thresholds. CTP lesion volumes were compared in patients with-versus-without near-complete reperfusion. Associations between each CTP metric and clinical outcome (90-day mRS) were tested using multivariable logistic regression, adjusted for baseline imaging and clinical variables. Treatment-effect modification was assessed by introducing CTP lesion volume × reperfusion interaction terms in the models. Results: CTP lesion volumes and reperfusion status were available in 410/1105 patients. CTP lesion volumes were overall larger in patients without near-complete reperfusion, albeit not always statistically significant. Increased CBF <34%, CBV <34%, CBV <38%, and CBV <42% lesion volumes were associated with worse clinical outcome (ordinal mRS) at 90 days. CTP core lesion volumes did not modify the treatment effect of near-complete recanalization on clinical outcome. Conclusions: CTP did not modify the effect of near-complete reperfusion on clinical outcomes. Thus, CTP cannot explain why some patients with near-complete reperfusion have poor clinical outcomes.
MeSH term(s)	Humans ; Ischemic Stroke/diagnostic imaging ; Ischemic Stroke/drug therapy ; Ischemic Stroke/surgery ; Stroke/diagnostic imaging ; Stroke/drug therapy ; Stroke/surgery ; Hospitalization ; Reperfusion ; Tomography, X-Ray Computed
Language	English
Publishing date	2023-08-24
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	603808-6
ISSN	1936-959X ; 0195-6108
ISSN (online)	1936-959X
ISSN	0195-6108
DOI	10.3174/ajnr.A7954
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Article ; Online: Portable cerebral blood flow monitor to detect large vessel occlusion in patients with suspected stroke.

Favilla, Christopher G / Baird, Grayson L / Grama, Kedar / Konecky, Soren / Carter, Sarah / Smith, Wendy / Gitlevich, Rebecca / Lebron-Cruz, Alexa / Yodh, Arjun G / McTaggart, Ryan A

Journal of neurointerventional surgery

2024

Abstract: Background: Early detection of large vessel occlusion (LVO) facilitates triage to an appropriate stroke center to reduce treatment times and improve outcomes. Prehospital stroke scales are not sufficiently sensitive, so we investigated the ability of ... ...

Abstract	Background: Early detection of large vessel occlusion (LVO) facilitates triage to an appropriate stroke center to reduce treatment times and improve outcomes. Prehospital stroke scales are not sufficiently sensitive, so we investigated the ability of the portable Openwater optical blood flow monitor to detect LVO. Methods: Patients were prospectively enrolled at two comprehensive stroke centers during stroke alert evaluation within 24 hours of onset with National Institutes of Health Stroke Scale (NIHSS) score ≥2. A 70 s bedside optical blood flow scan generated cerebral blood flow waveforms based on relative changes in speckle contrast. Anterior circulation LVO was determined by CT angiography. A deep learning model trained on all patient data using fivefold cross-validation and learned discriminative representations from the raw speckle contrast waveform data. Receiver operating characteristic (ROC) analysis compared the Openwater diagnostic performance (ie, LVO detection) with prehospital stroke scales. Results: Among 135 patients, 52 (39%) had an anterior circulation LVO. The median NIHSS score was 8 (IQR 4-14). The Openwater instrument had 79% sensitivity and 84% specificity for the detection of LVO. The rapid arterial occlusion evaluation (RACE) scale had 60% sensitivity and 81% specificity and the Los Angeles motor scale (LAMS) had 50% sensitivity and 81% specificity. The binary Openwater classification (high-likelihood vs low-likelihood) had an area under the ROC (AUROC) of 0.82 (95% CI 0.75 to 0.88), which outperformed RACE (AUC 0.70; 95% CI 0.62 to 0.78; P=0.04) and LAMS (AUC 0.65; 95% CI 0.57 to 0.73; P=0.002). Conclusions: The Openwater optical blood flow monitor outperformed prehospital stroke scales for the detection of LVO in patients undergoing acute stroke evaluation in the emergency department. These encouraging findings need to be validated in an independent test set and the prehospital environment.
Language	English
Publishing date	2024-03-21
Publishing country	England
Document type	Journal Article
ZDB-ID	2514982-9
ISSN	1759-8486 ; 1759-8478
ISSN (online)	1759-8486
ISSN	1759-8478
DOI	10.1136/jnis-2024-021536
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