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Buch ; Online ; Dissertation / Habilitation: Characterization of the Vacuolar Sugar Transporter Early Responsive to Dehydration-Like4 (ERDL4) from Arabidopsis and its Role in Cold and in Dark Induced Senescence

Khan, Azkia [Verfasser] / Neuhaus, Ekkehard [Akademischer Betreuer]

2023

Verfasserangabe	Azkia Khan ; Betreuer: Ekkehard Neuhaus
Schlagwörter	Biowissenschaften, Biologie ; Life Science, Biology
Thema/Rubrik (Code)	sg570
Sprache	Englisch
Verlag	Rheinland-Pfälzische Technische Universität Kaiserslautern-Landau
Erscheinungsort	Kaiserslautern-Landau
Dokumenttyp	Buch ; Online ; Dissertation / Habilitation
Datenquelle	Digitale Dissertationen im Internet

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Artikel ; Online: Carbohydrate distribution via SWEET17 is critical for Arabidopsis inflorescence branching under drought.

Valifard, Marzieh / Khan, Azkia / Berg, Johannes / Le Hir, Rozenn / Pommerrenig, Benjamin / Neuhaus, H Ekkehard / Keller, Isabel

Journal of experimental botany

2024

Abstract: Sugars Will Eventually be Exported Transporters (SWEETs) are the most recently discovered family of plant sugar transporters. By acting as uniporters, SWEETs facilitate the diffusion of sugars across cell membranes and play an important role in various ... ...

Abstract	Sugars Will Eventually be Exported Transporters (SWEETs) are the most recently discovered family of plant sugar transporters. By acting as uniporters, SWEETs facilitate the diffusion of sugars across cell membranes and play an important role in various physiological processes such as abiotic stress adaptation. AtSWEET17, a vacuolar fructose facilitator, was shown to be involved in the modulation of the root system during drought. In addition, previous studies have shown that overexpression of an apple homolog leads to increased drought tolerance in tomato plants. Therefore, SWEET17 might be a molecular element involved in the plant´s drought response. However, the role and function of SWEET17 in aboveground tissues of Arabidopsis under drought stress remains elusive. By combining gene expression analysis and stem architecture with the sugar profiles of different aboveground tissues, we uncovered a putative role of SWEET17 in carbohydrate supply and thus cauline branch elongation, especially during periods of carbon limitation, as occurs under drought stress. Thus, SWEET17 seems to be involved in maintaining efficient plant reproduction under drought-stress conditions.
Sprache	Englisch
Erscheinungsdatum	2024-03-26
Erscheinungsland	England
Dokumenttyp	Journal Article
ZDB-ID	2976-2
ISSN	1460-2431 ; 0022-0957
ISSN (online)	1460-2431
ISSN	0022-0957
DOI	10.1093/jxb/erae135
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Complete genome sequence of hollyhock vein yellowing virus, a novel monopartite begomovirus infecting hollyhock in Pakistan.

Khan, Azkia / Imtiaz, Yaqoot / Tahir, Muhammad / Briddon, Rob W

Archives of virology

2021 Band 166, Heft 9, Seite(n) 2607–2610

Abstract: Hollyhock (Alcea rosea, family Malvaceae) is an ornamental plant grown widely in gardens across South Asia. In a bed of ornamental plants near the village of Chakri (Punjab Province, Pakistan) in 2014, hollyhock plants showing two distinct symptom types ... ...

Abstract	Hollyhock (Alcea rosea, family Malvaceae) is an ornamental plant grown widely in gardens across South Asia. In a bed of ornamental plants near the village of Chakri (Punjab Province, Pakistan) in 2014, hollyhock plants showing two distinct symptom types were identified: yellow vein mosaic and leaf crumple. PCR amplification with universal primers amplified a begomovirus from separate nucleic acid extracts of single plants of each type but amplified a betasatellite only from the plant with the yellow vein mosaic symptoms. No potential begomovirus DNA B component or alphasatellite could be identified in either sample. After cloning, the genome sequences of two viruses, one from a plant of each symptom type, were determined and shown to share 99.9% nucleotide sequence identity with each other but less than 91% nucleotide sequence identity with all previously characterized begomoviruses, with the highest identity (90%) to an isolate of pedilanthus leaf curl virus (PeLCV). This indicates that the two hollyhock plants were infected with a newly identified begomovirus for which the name "hollyhock vein yellowing virus" (HoVYV) is proposed. HoVYV likely has a recombinant origin. The betasatellite showed the highest nucleotide sequence identity to an isolate of cotton leaf curl Multan betasatellite (CLCuMuB), a betasatellite associated with cotton leaf curl disease across Pakistan and northwestern India. These findings add to the diversity of known begomoviruses in South Asia and again highlight the role of hollyhock as a reservoir of the cotton leaf curl begomovirus betasatellite complex. The results also suggest that the yellow vein mosaic symptoms in hollyhock are due to the betasatellite rather than the virus.
Mesh-Begriff(e)	Base Sequence ; Begomovirus/classification ; Begomovirus/genetics ; Begomovirus/isolation & purification ; DNA Viruses/genetics ; DNA, Viral/genetics ; Malvaceae/virology ; Pakistan ; Phylogeny ; Plant Diseases/virology ; Plant Viruses/classification ; Plant Viruses/genetics ; Plant Viruses/isolation & purification ; Viruses, Unclassified/classification ; Viruses, Unclassified/genetics ; Viruses, Unclassified/isolation & purification ; Whole Genome Sequencing
Chemische Substanzen	DNA, Viral
Sprache	Englisch
Erscheinungsdatum	2021-06-11
Erscheinungsland	Austria
Dokumenttyp	Journal Article
ZDB-ID	7491-3
ISSN	1432-8798 ; 0304-8608
ISSN (online)	1432-8798
ISSN	0304-8608
DOI	10.1007/s00705-021-05134-7
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel: Complete genome sequence of hollyhock vein yellowing virus, a novel monopartite begomovirus infecting hollyhock in Pakistan

Khan, Azkia / Imtiaz, Yaqoot / Tahir, Muhammad / Briddon, Rob W.

Archives of virology. 2021 Sept., v. 166, no. 9

2021

Abstract	Hollyhock (Alcea rosea, family Malvaceae) is an ornamental plant grown widely in gardens across South Asia. In a bed of ornamental plants near the village of Chakri (Punjab Province, Pakistan) in 2014, hollyhock plants showing two distinct symptom types were identified: yellow vein mosaic and leaf crumple. PCR amplification with universal primers amplified a begomovirus from separate nucleic acid extracts of single plants of each type but amplified a betasatellite only from the plant with the yellow vein mosaic symptoms. No potential begomovirus DNA B component or alphasatellite could be identified in either sample. After cloning, the genome sequences of two viruses, one from a plant of each symptom type, were determined and shown to share 99.9% nucleotide sequence identity with each other but less than 91% nucleotide sequence identity with all previously characterized begomoviruses, with the highest identity (90%) to an isolate of pedilanthus leaf curl virus (PeLCV). This indicates that the two hollyhock plants were infected with a newly identified begomovirus for which the name "hollyhock vein yellowing virus" (HoVYV) is proposed. HoVYV likely has a recombinant origin. The betasatellite showed the highest nucleotide sequence identity to an isolate of cotton leaf curl Multan betasatellite (CLCuMuB), a betasatellite associated with cotton leaf curl disease across Pakistan and northwestern India. These findings add to the diversity of known begomoviruses in South Asia and again highlight the role of hollyhock as a reservoir of the cotton leaf curl begomovirus betasatellite complex. The results also suggest that the yellow vein mosaic symptoms in hollyhock are due to the betasatellite rather than the virus.
Schlagwörter	Alcea rosea ; Begomovirus ; Cotton leaf curl Multan betasatellite ; DNA ; cotton ; genome ; leaf curling ; leaves ; nucleotide sequences ; ornamental plants ; sequence analysis ; villages ; virology ; viruses ; India ; Pakistan
Sprache	Englisch
Erscheinungsverlauf	2021-09
Umfang	p. 2607-2610.
Erscheinungsort	Springer Vienna
Dokumenttyp	Artikel
ZDB-ID	7491-3
ISSN	1432-8798 ; 0304-8608
ISSN (online)	1432-8798
ISSN	0304-8608
DOI	10.1007/s00705-021-05134-7
Datenquelle	NAL Katalog (AGRICOLA)

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Artikel ; Online: A stepwise diagnostic approach to superior vena cava syndrome.

Mathews, Tony / Bring, Rachel / Khan, Azkia / Kronzon, Itzhak / Gianos, Eugenia

European heart journal cardiovascular Imaging

2019 Band 20, Heft 3, Seite(n) 367

Mesh-Begriff(e)	Adult ; Antineoplastic Combined Chemotherapy Protocols/therapeutic use ; Biopsy, Needle ; Echocardiography/methods ; Follow-Up Studies ; Humans ; Immunohistochemistry ; Lymphoma, Large B-Cell, Diffuse/complications ; Lymphoma, Large B-Cell, Diffuse/drug therapy ; Lymphoma, Large B-Cell, Diffuse/pathology ; Magnetic Resonance Imaging/methods ; Male ; Radiography, Thoracic/methods ; Risk Assessment ; Superior Vena Cava Syndrome/diagnostic imaging ; Superior Vena Cava Syndrome/etiology ; Superior Vena Cava Syndrome/pathology ; Thoracic Wall/diagnostic imaging ; Thoracic Wall/physiopathology ; Tomography, X-Ray Computed/methods ; Treatment Outcome
Sprache	Englisch
Erscheinungsdatum	2019-02-01
Erscheinungsland	England
Dokumenttyp	Case Reports ; Journal Article
ZDB-ID	2638345-7
ISSN	2047-2412 ; 2047-2404
ISSN (online)	2047-2412
ISSN	2047-2404
DOI	10.1093/ehjci/jey185
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: The Orf9b protein of SARS-CoV-2 modulates mitochondrial protein biogenesis.

Lenhard, Svenja / Gerlich, Sarah / Khan, Azkia / Rödl, Saskia / Bökenkamp, Jan-Eric / Peker, Esra / Zarges, Christine / Faust, Janina / Storchova, Zuzana / Räschle, Markus / Riemer, Jan / Herrmann, Johannes M

The Journal of cell biology

2023 Band 222, Heft 10

Abstract: The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) expresses high amounts of the protein Orf9b to target the mitochondrial outer membrane protein Tom70. Tom70 serves as an import receptor for mitochondrial precursors and, independently of ... ...

Abstract	The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) expresses high amounts of the protein Orf9b to target the mitochondrial outer membrane protein Tom70. Tom70 serves as an import receptor for mitochondrial precursors and, independently of this function, is critical for the cellular antiviral response. Previous studies suggested that Orf9b interferes with Tom70-mediated antiviral signaling, but its implication for mitochondrial biogenesis is unknown. In this study, we expressed Orf9b in human HEK293 cells and observed an Orf9b-mediated depletion of mitochondrial proteins, particularly in respiring cells. To exclude that the observed depletion was caused by the antiviral response, we generated a yeast system in which the function of human Tom70 could be recapitulated. Upon expression of Orf9b in these cells, we again observed a specific decline of a subset of mitochondrial proteins and a general reduction of mitochondrial volume. Thus, the SARS-CoV-2 virus is able to modulate the mitochondrial proteome by a direct effect of Orf9b on mitochondrial Tom70-dependent protein import.
Mesh-Begriff(e)	Humans ; Coronavirus Nucleocapsid Proteins/genetics ; COVID-19/genetics ; HEK293 Cells ; Membrane Proteins ; Mitochondrial Membrane Transport Proteins/genetics ; Saccharomyces cerevisiae ; SARS-CoV-2
Chemische Substanzen	Coronavirus Nucleocapsid Proteins ; Membrane Proteins ; Mitochondrial Membrane Transport Proteins ; nucleocapsid phosphoprotein, SARS-CoV-2
Sprache	Englisch
Erscheinungsdatum	2023-09-08
Erscheinungsland	United States
Dokumenttyp	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	218154-x
ISSN	1540-8140 ; 0021-9525
ISSN (online)	1540-8140
ISSN	0021-9525
DOI	10.1083/jcb.202303002
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Vacuolar sugar transporter EARLY RESPONSE TO DEHYDRATION6-LIKE4 affects fructose signaling and plant growth.

Khan, Azkia / Cheng, Jintao / Kitashova, Anastasia / Fürtauer, Lisa / Nägele, Thomas / Picco, Cristiana / Scholz-Starke, Joachim / Keller, Isabel / Neuhaus, H Ekkehard / Pommerrenig, Benjamin

Plant physiology

2023 Band 193, Heft 3, Seite(n) 2141–2163

Abstract: Regulation of intracellular sugar homeostasis is maintained by regulation of activities of sugar import and export proteins residing at the tonoplast. We show here that the EARLY RESPONSE TO DEHYDRATION6-LIKE4 (ERDL4) protein, a member of the ... ...

Abstract	Regulation of intracellular sugar homeostasis is maintained by regulation of activities of sugar import and export proteins residing at the tonoplast. We show here that the EARLY RESPONSE TO DEHYDRATION6-LIKE4 (ERDL4) protein, a member of the monosaccharide transporter family, resides in the vacuolar membrane in Arabidopsis (Arabidopsis thaliana). Gene expression and subcellular fractionation studies indicated that ERDL4 participates in fructose allocation across the tonoplast. Overexpression of ERDL4 increased total sugar levels in leaves due to a concomitantly induced stimulation of TONOPLAST SUGAR TRANSPORTER 2 (TST2) expression, coding for the major vacuolar sugar loader. This conclusion is supported by the finding that tst1-2 knockout lines overexpressing ERDL4 lack increased cellular sugar levels. ERDL4 activity contributing to the coordination of cellular sugar homeostasis is also indicated by 2 further observations. First, ERDL4 and TST genes exhibit an opposite regulation during a diurnal rhythm, and second, the ERDL4 gene is markedly expressed during cold acclimation, representing a situation in which TST activity needs to be upregulated. Moreover, ERDL4-overexpressing plants show larger rosettes and roots, a delayed flowering time, and increased total seed yield. Consistently, erdl4 knockout plants show impaired cold acclimation and freezing tolerance along with reduced plant biomass. In summary, we show that modification of cytosolic fructose levels influences plant organ development and stress tolerance.
Mesh-Begriff(e)	Arabidopsis Proteins/genetics ; Arabidopsis Proteins/metabolism ; Fructose ; Monosaccharide Transport Proteins/genetics ; Monosaccharide Transport Proteins/metabolism ; Biological Transport/genetics ; Arabidopsis/metabolism ; Carbohydrates ; Gene Expression Regulation, Plant ; Plant Proteins/metabolism ; Plants, Genetically Modified/metabolism
Chemische Substanzen	Arabidopsis Proteins ; Fructose (30237-26-4) ; Monosaccharide Transport Proteins ; Carbohydrates ; Plant Proteins
Sprache	Englisch
Erscheinungsdatum	2023-07-04
Erscheinungsland	United States
Dokumenttyp	Journal Article
ZDB-ID	208914-2
ISSN	1532-2548 ; 0032-0889
ISSN (online)	1532-2548
ISSN	0032-0889
DOI	10.1093/plphys/kiad403
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Habit Mimics the Illness: EVALI During the Era of the COVID-19 Pandemic.

Kichloo, Asim / Khan, Azkia / Siddiqui, Nadir / Ejaz, Hashim / Albosta, Michael Stanley / Wani, Farah / Lone, Nazir

Journal of investigative medicine high impact case reports

2020 Band 8, Seite(n) 2324709620972243

Abstract: Globally, health care providers have been challenged to provide adequate care during the coronavirus disease-2019 (COVID-19) pandemic. Due to the ever changing and rapidly evolving nature of the novel coronavirus, there is increased public anxiety and ... ...

Abstract	Globally, health care providers have been challenged to provide adequate care during the coronavirus disease-2019 (COVID-19) pandemic. Due to the ever changing and rapidly evolving nature of the novel coronavirus, there is increased public anxiety and knowledge gaps that have created major dilemmas in health care delivery. In this environment, there is tremendous pressure on clinicians to diagnose each and every case of COVID-19. This has led to a situation in which clinicians are primed to suspect all respiratory illness is due to COVID-19 infection until proven otherwise. Because of this, providers may misdiagnose patients who have illnesses that are distinct from COVID-19 but present in a similar manner. In the current article, we present the case of e-cigarette- and vaping-associated acute lung injury (EVALI) mimicking pneumonia secondary to the novel coronavirus. It is unknown if vaping puts patients at higher risk of respiratory failure if coinfected with COVID-19. Therefore, exposure history in patients presenting with pneumonia-like syndrome is important. Physicians should be aware of the overlap between these conditions and should pay particular attention during history taking to distinguish EVALI from COVID-19 pneumonia.
Mesh-Begriff(e)	Adult ; COVID-19 ; Coronavirus Infections/diagnosis ; Coronavirus Infections/diagnostic imaging ; Cough/diagnosis ; Cough/etiology ; Diagnosis, Differential ; Fever/diagnosis ; Fever/etiology ; Habits ; Humans ; Lung Diseases, Interstitial/diagnostic imaging ; Lung Diseases, Interstitial/etiology ; Male ; Pandemics ; Pneumonia, Viral/diagnosis ; Pneumonia, Viral/diagnostic imaging ; Radiography, Thoracic/methods ; Risk Assessment ; Tomography, X-Ray Computed/methods ; Vaping/adverse effects
Schlagwörter	covid19
Sprache	Englisch
Erscheinungsdatum	2020-11-11
Erscheinungsland	United States
Dokumenttyp	Case Reports ; Journal Article
ZDB-ID	2710326-2
ISSN	2324-7096 ; 2324-7096
ISSN (online)	2324-7096
ISSN	2324-7096
DOI	10.1177/2324709620972243
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: COVID MED – An Early Pandemic Trial of Losartan for Hospitalized COVID-19 Patients

Freilich, Daniel / Victory, Jennifer / Jenkins, Paul / Wheeler, James / Vail, G. Matthew / Riesenfeld, Erik / Cross, Peggy / Gilmore, Catherine / Huckabone, Melissa / Schworm, Anna / Boregowda, Umesha / Deshmukh, Farah / Choi, Yuri / Khan, Azkia / Gadomski, Anne

medRxiv

Abstract: Background ACEi/ARB medications have been hypothesized to have potential benefit in COVID-19. Despite concern for increased ACE-2 expression in some animal models, preclinical and observational-retrospective and uncontrolled trials suggested possible ... ...

Abstract	Background ACEi/ARB medications have been hypothesized to have potential benefit in COVID-19. Despite concern for increased ACE-2 expression in some animal models, preclinical and observational-retrospective and uncontrolled trials suggested possible benefit. Two RCTs of the ARB losartan from University of Minnesota showed no benefit yet safety signals for losartan in outpatient and hospitalized COVID-19 patients. COVID MED, started early in the pandemic, also assessed losartan in a RCT in hospitalized patients with COVID-19. Methods COVID MED was quadruple-blinded, placebo-controlled, multicenter randomized clinical trial (RCT). Hospitalized COVID-19 patients were randomized to receive standard care and hydroxychloroquine, lopinavir/ritonavir, losartan, or placebo. Hydroxychloroquine and lopinavir/ritonavir arms were discontinued after RCTs showed no benefit. We report data from the losartan arm compared to combined (lopinavir-ritonavir and placebo) and prespecified placebo-only controls. The primary endpoint was the NCOSS slope of change. Slow enrollment prompted early stopping. Results Of 432 screened patients, 14 were enrolled (3.5%), 9 received losartan and 5 combined control (lopinavir/ritonavir [N=2], placebo [N=3]); 1 hydroxychloroquine arm patient was excluded. Most baseline parameters were balanced. Treatment with losartan was not associated with a difference in NCOSS slope of change in comparison with combined control (p=0.4) or placebo-only control (p=0.05) (trend favoring placebo). 60-day mortality and overall AE and SAE rates were numerically but not significantly higher with losartan. Conclusions In this small blinded RCT in hospitalized COVID-19 patients, losartan did not improve outcome vs. control comparisons and was associated with adverse safety signals.
Schlagwörter	covid19
Sprache	Englisch
Erscheinungsdatum	2022-01-15
Verlag	Cold Spring Harbor Laboratory Press
Dokumenttyp	Artikel ; Online
DOI	10.1101/2022.01.12.22269095
Datenquelle	COVID19

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Artikel: Habit Mimics the Illness: EVALI During the Era of the COVID-19 Pandemic

Kichloo, Asim / Khan, Azkia / Siddiqui, Nadir / Ejaz, Hashim / Albosta, Michael Stanley / Wani, Farah / Lone, Nazir

J Investig Med High Impact Case Rep

Abstract	Globally, health care providers have been challenged to provide adequate care during the coronavirus disease-2019 (COVID-19) pandemic. Due to the ever changing and rapidly evolving nature of the novel coronavirus, there is increased public anxiety and knowledge gaps that have created major dilemmas in health care delivery. In this environment, there is tremendous pressure on clinicians to diagnose each and every case of COVID-19. This has led to a situation in which clinicians are primed to suspect all respiratory illness is due to COVID-19 infection until proven otherwise. Because of this, providers may misdiagnose patients who have illnesses that are distinct from COVID-19 but present in a similar manner. In the current article, we present the case of e-cigarette- and vaping-associated acute lung injury (EVALI) mimicking pneumonia secondary to the novel coronavirus. It is unknown if vaping puts patients at higher risk of respiratory failure if coinfected with COVID-19. Therefore, exposure history in patients presenting with pneumonia-like syndrome is important. Physicians should be aware of the overlap between these conditions and should pay particular attention during history taking to distinguish EVALI from COVID-19 pneumonia.
Schlagwörter	covid19
Verlag	WHO
Dokumenttyp	Artikel
Anmerkung	WHO #Covidence: #919056
Datenquelle	COVID19

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