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Lang R, Welponer T, Richtig E, Wolf I, Hoeller C, Hafner C, Nguyen VA, Kofler J, Barta M, Koelblinger P, Hitzl W, Emberger M, Laimer M. Nivolumab for locally advanced and metastatic cutaneous squamous cell carcinoma (NIVOSQUACS study)-Phase II data covering impact of concomitant haematological malignancies. J Eur Acad Dermatol Venereol 2023; 37:1799-1810. [PMID: 37210651 DOI: 10.1111/jdv.19218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 05/03/2023] [Indexed: 05/22/2023]
Abstract
BACKGROUND Monoclonal antibodies, such as cemiplimab and pembrolizumab, against the programmed death receptor (PD)-1 have become the current standard of care and first-line treatment of advanced cutaneous squamous cell carcinoma (cSCC), proving remarkable clinical benefit and acceptable safety. OBJECTIVES To assess efficacy and safety of the anti-PD-1 antibody nivolumab in patients with locally advanced and metastatic cSCC. METHODS Patients received open-label nivolumab 240 mg intravenously every 2 weeks for up to 24 months. Patients with concomitant haematological malignancies (CHMs), either non-progressing or stable under active therapy, were eligible for inclusion. RESULTS Of 31 patients with a median age of 80 years, 22.6% of patients achieved an investigator assessed complete response, resulting in an objective response rate (ORR) of 61.3% and a disease control rate (DCR) of 64.5%. Progression-free survival (PFS) was 11.1 months, and the median overall survival (OS) was not reached after 24 weeks of therapy. Median follow-up was 23.82 months. Subgroup analysis of the CHM cohort (n = 11; 35%) revealed an ORR of 45.5%, a DCR of 54.5%, a median PFS of 10.9 months, and median OS of 20.7 months. Treatment related adverse events were reported in 58.1% of all patients (19.4% grade 3, the remaining grade 1 or 2). PD-L1 expression and CD-8+ T-cell infiltration did not significantly correlate with clinical response, although a trend towards a shorter PFS of 5.6 months was observed with PD-L1 negativity and low CD8+ intratumoral infiltration. CONCLUSION This study demonstrated robust clinical efficacy of nivolumab in patients with locally advanced and metastatic cSCCs and a tolerability comparable to data of other anti-PD-1 antibodies. Favourable outcomes were obtained despite involving the oldest hitherto reported study cohort for anti-PD-1 antibodies and a significant proportion of CHM patients prone to high risk tumours and an aggressive course otherwise typically excluded from clinical trials.
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Affiliation(s)
- R Lang
- Department of Dermatology and Allergology, Paracelsus Medical University Salzburg, Salzburg, Austria
| | - T Welponer
- Department of Dermatology and Allergology, Paracelsus Medical University Salzburg, Salzburg, Austria
| | - E Richtig
- Department of Dermatology, Medical University of Graz, Graz, Austria
| | - I Wolf
- Department of Dermatology, Medical University of Graz, Graz, Austria
| | - C Hoeller
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - C Hafner
- Department of Dermatology, University Hospital St. Pölten, Karl Landsteiner University of Health Sciences, St. Pölten, Austria
| | - V A Nguyen
- Department of Dermatology, Venereology and Allergology, Medical University of Innsbruck, Innsbruck, Austria
| | - J Kofler
- Department of Dermatology, Landeskrankenhaus Klagenfurt, Klagenfurt, Austria
| | - M Barta
- Department of Dermatology and Venereology, Hospital of Wels-Grieskirchen, Wels-Grieskirchen, Austria
| | - P Koelblinger
- Department of Dermatology and Allergology, Paracelsus Medical University Salzburg, Salzburg, Austria
| | - W Hitzl
- Research and Innovation Management, Biostatistics and Publication of Clinical Trial Studies, Paracelsus Medical University Salzburg, Salzburg, Austria
- Department of Ophthalmology and Optometry, Paracelsus Medical University Salzburg, Salzburg, Austria
- Research Program Experimental Ophthalmology and Glaucoma Research, Paracelsus Medical University Salzburg, Salzburg, Austria
| | | | - M Laimer
- Department of Dermatology and Allergology, Paracelsus Medical University Salzburg, Salzburg, Austria
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Shalaeva E, Bano A, Kasimov U, Janabaev B, Azizova F, Baumgartner I, Laimer M, Saner H. Persistent medication adherence and lifestyle changes compliance in patients with type 2 diabetes undergoing minor foot amputation and one-year all-cause mortality. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
The 3-years mortality rate in patients with Type 2 diabetes (T2D) after minor amputations may reach 53–80%. The aim of the study was to evaluate the impact of persistent medication adherence and compliance with lifestyle recommendations on 1-year all-cause mortality in patients with T2D and peripheral artery disease (PAD) after minor foot amputation.
Methods
This is a prospective, single-center, observational cohort study including 785 consecutive T2D patients with PAD undergoing minor amputations and followed-up over 1 year (mean age 62.3±7.2 years; 62.8% males). Based on adherence and compliance, patients were divided into 4 groups: adherent/compliant (n=432), adherent/non-compliant (n=101), compliant/non-adherent (n=68), non-adherent/non-compliant (n=184). Secondary prevention recommendations included healthy diet, smoking cessation, physical exercise ≥30 min/day and >80% drug intake (wound healing, antidiabetic, cardiovascular treatment, dual antiplatelet and statin treatment). Cox proportional hazard models were used to examine how variables predict one-year all-cause mortality.
Results
One-year all-cause mortality was 16.9% (n=133) at 1-year follow-up (Figure 1). After adjusting for confounders, compared to adherent/compliant patients, all other groups had an increased risk of one-year mortality. In non-adherent/non-compliant patients HR=9.08 [95% CI 5.55, 14.86], p<0.001; in adherent/non-compliant patients HR=3.86 (95% CI [2.08, 7.14], p<0.001), in non-adherent/compliant patients HR=2.98 (95% CI [1.45, 6.08] p=0.003). After adjustment, age, history of myocardial infarction, foot infection also remained significant (Figure 2).
Conclusion
T2D and PAD patients who were persistently medication non-adherent and non-compliant to lifestyle changes recommendations had a nine-fold increased risk for one-year all-cause mortality after PFA, non-compliance only increased mortality 3.8-fold, and non-adherence only – 3.0-fold, which outline the importance of secondary preventive measures.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- E Shalaeva
- Tashkent Medical Academy , Tashkent , Uzbekistan
| | - A Bano
- Institute of Social and Preventive Medicine. University of Bern , Bern , Switzerland
| | - U Kasimov
- Tashkent Medical Academy , Tashkent , Uzbekistan
| | - B Janabaev
- Tashkent Medical Academy , Tashkent , Uzbekistan
| | - F Azizova
- Tashkent Medical Academy , Tashkent , Uzbekistan
| | - I Baumgartner
- Bern University Hospital, Inselspital , Bern , Switzerland
| | - M Laimer
- Bern University Hospital, Inselspital , Bern , Switzerland
| | - H Saner
- Institute of Social and Preventive Medicine. University of Bern , Bern , Switzerland
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Shalaeva E, Bano A, Janabaev B, Laimer M, Saner H. Coronary computed tomography angiography predict one-year mortality in patients with type 2 diabetes and partial foot amputation. Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Medek K, Klausegger A, Ude-Schoder K, Prodinger C, Breitenbach-Koller H, Bauer JW, Laimer M. Phenotypic alleviation in LAMB3-mutated severe junctional epidermolysis bullosa. J Eur Acad Dermatol Venereol 2022; 36:e631-e634. [PMID: 35305048 DOI: 10.1111/jdv.18091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K Medek
- Department of Dermatology, University Hospital of the Paracelsus Medical University Salzburg, 5020, Salzburg, Austria
| | - A Klausegger
- EB House Austria, University Hospital of Dermatology of the Paracelsus Medical University, 5020, Salzburg, Austria
| | - K Ude-Schoder
- EB House Austria, University Hospital of Dermatology of the Paracelsus Medical University, 5020, Salzburg, Austria
| | - C Prodinger
- Department of Dermatology, University Hospital of the Paracelsus Medical University Salzburg, 5020, Salzburg, Austria
| | | | - J W Bauer
- Department of Dermatology, University Hospital of the Paracelsus Medical University Salzburg, 5020, Salzburg, Austria
| | - M Laimer
- Department of Dermatology, University Hospital of the Paracelsus Medical University Salzburg, 5020, Salzburg, Austria
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Ziegler B, Ofner S, Lischent J, Perndorfer J, Diem A, Laimer M, Prodinger C, Treff F. [Anesthesiological aspects in patients with epidermolysis bullosa]. Anaesthesist 2022; 71:467-474. [PMID: 35175387 DOI: 10.1007/s00101-022-01096-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/20/2022] [Indexed: 11/25/2022]
Abstract
Epidermolysis bullosa causes blistering due to altered structural proteins of the dermoepidermal junction, resulting in scarring and strictures of the skin and mucous membranes. Affected individuals typically require frequent surgical interventions due to burdensome symptoms and complications of the disease. The anesthesiological management of these patients is inherently challenging. This review article summarizes the relevant features of this patient cohort and provides practical recommendations for care.
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Affiliation(s)
- B Ziegler
- Univ.Klinik f. Anästhesiologie, perioperative Medizin und allgemeine Intensivmedizin, LKH Salzburg, Müllner Hauptstr. 48, 5020, Salzburg, Österreich.
| | - S Ofner
- Univ.Klinik f. Anästhesiologie, perioperative Medizin und allgemeine Intensivmedizin, LKH Salzburg, Müllner Hauptstr. 48, 5020, Salzburg, Österreich
| | - J Lischent
- Univ.Klinik f. Anästhesiologie, perioperative Medizin und allgemeine Intensivmedizin, LKH Salzburg, Müllner Hauptstr. 48, 5020, Salzburg, Österreich
| | - J Perndorfer
- Univ.Klinik f. Anästhesiologie, perioperative Medizin und allgemeine Intensivmedizin, LKH Salzburg, Müllner Hauptstr. 48, 5020, Salzburg, Österreich
| | - A Diem
- Univ. Klinik f. Dermatologie und Allergologie, LKH Salzburg, Müllner Hauptstr. 48, 5020, Salzburg, Österreich.,EB Haus Austria, LKH Salzburg, Müllner Hauptstr. 48, 5020, Salzburg, Österreich
| | - M Laimer
- Univ. Klinik f. Dermatologie und Allergologie, LKH Salzburg, Müllner Hauptstr. 48, 5020, Salzburg, Österreich.,EB Haus Austria, LKH Salzburg, Müllner Hauptstr. 48, 5020, Salzburg, Österreich
| | - C Prodinger
- Univ. Klinik f. Dermatologie und Allergologie, LKH Salzburg, Müllner Hauptstr. 48, 5020, Salzburg, Österreich
| | - F Treff
- Univ.Klinik f. Anästhesiologie, perioperative Medizin und allgemeine Intensivmedizin, LKH Salzburg, Müllner Hauptstr. 48, 5020, Salzburg, Österreich
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Prodinger C, Klausegger A, Bauer JW, Laimer M. Molekulare Diagnostik und Therapie der Epidermolysis bullosa. Monatsschr Kinderheilkd 2021. [DOI: 10.1007/s00112-021-01256-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
ZusammenfassungUnter Epidermolysis bullosa (EB) subsumiert man genetische Erkrankungen, die durch gesteigerte Hautfragilität mit Blasenbildung nach bereits geringen mechanischen Belastungen gekennzeichnet sind. Hochvariable kutane, extrakutane und Organmanifestationen verursachen eine signifikante Morbidität und Mortalität sowie eine hohe Krankheitslast für Betroffene und Angehörige. Obwohl derzeit nicht heilbar, eröffnen Fortschritte in der molekularen Charakterisierung pathogenetischer Prozesse, in den diagnostischen Techniken und molekularen Therapieansätzen neue Perspektiven. Neben korrektiven, potenziell kurativen Behandlungszugängen mit dem Ziel der Wiederherstellung der Funktion von Gen bzw. Protein stellen krankheitsmodifizierende Strategien eine wertvolle Ergänzung dar. Unter Letztere fallen symptomatische Therapien, die sekundär dysregulierte, den Phänotyp modulierende Entzündungskaskaden adressieren oder zielgerichtete Interventionen hinsichtlich bestimmter Symptome wie Fibrosierung, Juckreiz oder kanzerogener Zelltransformation. Molekulare Verfahren erlauben heute zudem, eine Diagnose und damit Prognose früher und präziser zu stellen, was die genetische Beratung erleichtert.Das Management von EB-Patienten ist komplex und bedarf einer Spezialexpertise und multidisziplinär akkordierten Versorgung. Entsprechende Ressourcen halten designierte Expertisezentren wie das EB-Haus Austria vor, das als Mitglied des Europäischen Referenznetzwerks für Seltene Hauterkrankungen (ERN Skin) sowohl klinische Versorgung, Grundlagen- und klinische Forschungsaktivitäten sowie Zugang zu Aus- und Weiterbildungsprogrammen für Betroffene, Betreuende und medizinisches Fachpersonal gewährleistet.
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Prodinger C, Yerlett N, MacDonald C, Subhanitthaya C, Laimer M, Goh L, Du Toit G, Mellerio JE, Petrof G, Martinez AE. Characteristics of children with Netherton syndrome: a review of 21 patients. J Eur Acad Dermatol Venereol 2021; 35:e466-e469. [PMID: 33725371 DOI: 10.1111/jdv.17226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 02/01/2021] [Accepted: 03/10/2021] [Indexed: 11/28/2022]
Affiliation(s)
- C Prodinger
- Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - N Yerlett
- Dietetics Department, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - C MacDonald
- Department of Dermatology, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - C Subhanitthaya
- Department of Dermatology, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - M Laimer
- Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, Salzburg, Austria
| | - L Goh
- Paediatric Allergy Clinic, University College London Hospital NHS Foundation Trust, London, UK
| | - G Du Toit
- Children's Allergy Service, Evelina Children's Hospital, Guy's and St. Thomas's NHS Foundation Trust, London, UK
| | - J E Mellerio
- St. John's Institute of Dermatology, King's College London, Guy's Hospital NHS Foundation Trust, London, UK
| | - G Petrof
- Department of Dermatology, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
| | - A E Martinez
- Department of Dermatology, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK
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Huang X, Bai X, Guo T, Xie Z, Laimer M, Du D, Gbokie T, Zhang Z, He C, Lu Y, Wu W, Yi K. Genome-Wide Analysis of the PIN Auxin Efflux Carrier Gene Family in Coffee. Plants (Basel) 2020; 9:plants9091061. [PMID: 32825074 PMCID: PMC7570243 DOI: 10.3390/plants9091061] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/18/2020] [Accepted: 08/18/2020] [Indexed: 11/23/2022]
Abstract
Coffee is one of the most popular beverages around the world, which is mainly produced from the allopolyploid Coffea arabica. The genomes of C. arabica and its two ancestors C. canephora and C. eugenioides have been released due to the development of next generation sequencing. However, few studies on C. arabica are related to the PIN-FORMED (PIN) auxin efflux transporter despite its importance in auxin-mediated plant growth and development. In the present study, we conducted a genome-wide analysis of the PIN gene family in the three coffee species. Totals of 17, 9 and 10 of the PIN members were characterized in C. Arabica, C. canephora and C. eugenioides, respectively. Phylogenetic analysis revealed gene loss of PIN1 and PIN2 homologs in C. arabica, as well as gene duplication of PIN5 homologs during the fractionation process after tetraploidy. Furthermore, we conducted expression analysis of PIN genes in C. arabica by in silico and qRT-PCR. The results revealed the existence of gene expression dominance in allopolyploid coffee and illustrated several PIN candidates in regulating auxin transport and homeostasis under leaf rust fungus inoculation and the tissue-specific expression pattern of C. arabica. Together, this study provides the basis and guideline for future functional characterization of the PIN gene family.
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Affiliation(s)
- Xing Huang
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; (X.H.); (C.H.); (Y.L.); (K.Y.)
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou 571101, China
- Hainan Key Laboratory for Monitoring and Control of Tropical Agricultural Pests, Haikou 571101, China
| | - Xuehui Bai
- Dehong Tropical Agriculture Research Institute of Yunnan, Ruili 678600, China; (X.B.); (T.G.)
| | - Tieying Guo
- Dehong Tropical Agriculture Research Institute of Yunnan, Ruili 678600, China; (X.B.); (T.G.)
| | - Zhouli Xie
- School of Life Sciences, Peking University, Beijing 100871, China;
| | - Margit Laimer
- Plant Biotechnology Unit, Department of Biotechnology, BOKU-VIBT, University of Natural Resources and Life Sciences, Vienna 1190, Austria
- Correspondence: (M.L.); (W.W.)
| | - Dengxiang Du
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China;
| | - Thomas Gbokie
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China;
| | - Zhirun Zhang
- Coffee Engineering Research Center of China, Mangshi 678400, China;
| | - Chunping He
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; (X.H.); (C.H.); (Y.L.); (K.Y.)
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou 571101, China
- Hainan Key Laboratory for Monitoring and Control of Tropical Agricultural Pests, Haikou 571101, China
| | - Ying Lu
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; (X.H.); (C.H.); (Y.L.); (K.Y.)
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou 571101, China
- Hainan Key Laboratory for Monitoring and Control of Tropical Agricultural Pests, Haikou 571101, China
| | - Weihuai Wu
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; (X.H.); (C.H.); (Y.L.); (K.Y.)
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou 571101, China
- Hainan Key Laboratory for Monitoring and Control of Tropical Agricultural Pests, Haikou 571101, China
- Correspondence: (M.L.); (W.W.)
| | - Kexian Yi
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; (X.H.); (C.H.); (Y.L.); (K.Y.)
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou 571101, China
- Hainan Key Laboratory for Monitoring and Control of Tropical Agricultural Pests, Haikou 571101, China
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Maghuly F, Deák T, Vierlinger K, Pabinger S, Tafer H, Laimer M. Gene expression profiling identifies pathways involved in seed maturation of Jatropha curcas. BMC Genomics 2020; 21:290. [PMID: 32272887 PMCID: PMC7146973 DOI: 10.1186/s12864-020-6666-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 03/11/2020] [Indexed: 11/10/2022] Open
Abstract
Background Jatropha curcas, a tropical shrub, is a promising biofuel crop, which produces seeds with high content of oil and protein. To better understand the maturation process of J. curcas seeds and to improve its agronomic performance, a two-step approach was performed in six different maturation stages of seeds: 1) generation of the entire transcriptome of J. curcas seeds using 454-Roche sequencing of a cDNA library, 2) comparison of transcriptional expression levels using a custom Agilent 8x60K oligonucleotide microarray. Results A total of 793,875 high-quality reads were assembled into 19,382 unique full-length contigs, of which 13,507 could be annotated with Gene Ontology (GO) terms. Microarray data analysis identified 9111 probes (out of 57,842 probes), which were differentially expressed between the six maturation stages. The expression results were validated for 75 selected transcripts based on expression levels, predicted function, pathway, and length. Result from cluster analyses showed that transcripts associated with fatty acid, flavonoid, and phenylpropanoid biosynthesis were over-represented in the early stages, while those of lipid storage were over-represented in the late stages. Expression analyses of different maturation stages of J. curcas seed showed that most changes in transcript abundance occurred between the two last stages, suggesting that the timing of metabolic pathways during seed maturation in J. curcas occurs in late stages. The co-expression results showed that the hubs (CB5-D, CDR1, TT8, DFR, HVA22) with the highest number of edges, associated with fatty acid and flavonoid biosynthesis, are showing a decrease in their expression during seed maturation. Furthermore, seed development and hormone pathways are significantly well connected. Conclusion The obtained results revealed differentially expressed sequences (DESs) regulating important pathways related to seed maturation, which could contribute to the understanding of the complex regulatory network during seed maturation with the focus on lipid, flavonoid and phenylpropanoid biosynthesis. This study provides detailed information on transcriptional changes during J. curcas seed maturation and provides a starting point for a genomic survey of seed quality traits. The results highlighted specific genes and processes relevant to the molecular mechanisms involved in Jatropha seed maturation. These data can also be utilized regarding other Euphorbiaceae species.
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Affiliation(s)
- Fatemeh Maghuly
- Plant Functional Genomics, Department of Biotechnology, BOKU-VIBT, University of Natural Resources and Life Sciences, Muthgasse 18, 1190, Vienna, Austria.
| | - Tamás Deák
- Department of Viticulture, Szent István University, Villányi út 29-43, 1118 Budapest, Hungary
| | - Klemens Vierlinger
- Center for Health and Bioresources, Molecular Diagnostics, Austrian Institute of Technology (AIT), Giefinggasse 4, 1210, Vienna, Austria
| | - Stephan Pabinger
- Center for Health and Bioresources, Molecular Diagnostics, Austrian Institute of Technology (AIT), Giefinggasse 4, 1210, Vienna, Austria
| | - Hakim Tafer
- Austrian Center of Biological Resources (ACBR), Department of Biotechnology, BOKU-VIBT, University of Natural Resources and Life Sciences, Muthgasse 18, 1190, Vienna, Austria
| | - Margit Laimer
- Plant Biotechnology Unit, Department of Biotechnology, BOKU-VIBT, University of Natural Resources and Life Sciences, Muthgasse 18, 1190, Vienna, Austria
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Affiliation(s)
- M Laimer
- Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University Salzburg, Muellner Hauptstrasse 48, A-5020, Salzburg, Austria
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Maghuly F, Ramkat RC, Laimer M. Correction: Virus versus Host Plant MicroRNAs: Who Determines the Outcome of the Interaction? PLoS One 2019; 14:e0215588. [PMID: 30978263 PMCID: PMC6461243 DOI: 10.1371/journal.pone.0215588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Persa OD, Loquai C, Wobser M, Baltaci M, Dengler S, Kreuter A, Volz A, Laimer M, Emberger M, Doerler M, Mauch C, Helbig D. Extended surgical safety margins and ulceration are associated with an improved prognosis in pleomorphic dermal sarcomas. J Eur Acad Dermatol Venereol 2019; 33:1577-1580. [PMID: 30767327 DOI: 10.1111/jdv.15493] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 01/18/2019] [Indexed: 12/01/2022]
Abstract
BACKGROUND Pleomorphic dermal sarcomas (PDS) are frequent UV-induced sarcomas of the skin of intermediate grade malignant potential. Despite the fact that PDS have a noteworthy potential to recur (up to 28%) as well as to metastasize (up to 20%), there are no specific clinical guidelines with respect to follow-up these patients. Moreover, little is known about clinical, histological or molecular prognostic factors in PDS. OBJECTIVE The aim of the present study was to identify risk factors to predict relapse in a large multicentre sample cohort of PDS which could aid to optimize personalized treatment recommendations regarding surgical safety margins and adjuvant radiotherapy. METHODS Patients with a diagnosis of PDS were selected from nine European institutions based on the histopathologic criteria described by Fletcher. Clinicopathologic and follow-up data were collected and statistically analysed calculating univariate hazard ratios with 95% confidence intervals by use of the Cox proportional-hazards model and a significance level of P < 0.05. Patients with an incomplete excision of the tumour were excluded. RESULTS Univariate Cox regression analysis of possible prognostic factors for progression-free survival (PFS) performed in 92 patients revealed that an excision margin of <2 cm is significantly associated with relapse of PDS [hazard ratio 4.478 (95% CI 1.536-13.055), P = 0.006]. Ulceration of the tumour was associated with a significantly better prognosis [0.396 (0.174-0.904), P = 0.028] whereas adjuvant radiotherapy did not reach statistical significance to improve prognosis in patients with PDS [0.775 (0.231-2.593), P = 0.679]. Gender, age, immunosuppression, intratumoural necrosis, tumour location, vertical thickness or horizontal diameter did not significantly influence PFS in PDS. CONCLUSION We identified surgical safety margins of <2 cm and absence of ulceration as risk factors for relapse in patients with PDS. These findings may be implemented into both the primary treatment as well as the further monitoring of patients with PDS.
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Affiliation(s)
- O D Persa
- Department of Dermatology and Venereology, University of Cologne, Cologne, Germany
| | - C Loquai
- Department of Dermatology, University Medical Center Mainz, Mainz, Germany
| | - M Wobser
- Department of Dermatology, Venereology and Allergology, University Hospital Würzburg, Würzburg, Germany
| | - M Baltaci
- Department of Dermatology, Helios Hospital Krefeld, Krefeld, Germany
| | - S Dengler
- Department of Dermatology, Dortmund Hospital, Dortmund, Germany
| | - A Kreuter
- Department of Dermatology, Venereology and Allergology, HELIOS St Elisabeth Hospital Oberhausen, University Witten/Herdecke, Oberhausen, Germany
| | - A Volz
- Department of Dermatology, University Hospital Basel, Basel, Switzerland
| | - M Laimer
- Department of Dermatology, University Hospital Salzburg, Paracelsus Private Medical University of Salzburg, Salzburg, Austria
| | - M Emberger
- Institute of Pathology, Salzburg, Austria
| | - M Doerler
- Department of Dermatology, Venereology and Allergology, Ruhr-University Bochum, Bochum, Germany
| | - C Mauch
- Department of Dermatology and Venereology, University of Cologne, Cologne, Germany
| | - D Helbig
- Department of Dermatology and Venereology, University of Cologne, Cologne, Germany
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Panhofer P, Rothe S, Beckerhinn P, Hoffer F, Klaus A, Tentschert G, Chiappetta S, Weiner R, Bueter M, Langer F, Krebs M, Denecke C, Grote B, Türler A, Jacobi C, Jacobi K, Zehetner J, Steffen R, Melmer A, Laimer M, Kröll D, Nett P, Obermayer B. BARBQTCM: BARiatric Basic Questionnaire for TCM - Interest in Complementary Medicine of 2331 Overweight Patients from Germany, Switzerland and Austria. J Acupunct Meridian Stud 2018. [DOI: 10.1016/j.jams.2018.08.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Maghuly F, Pabinger S, Krainer J, Laimer M. The Pattern and Distribution of Induced Mutations in J. curcas Using Reduced Representation Sequencing. Front Plant Sci 2018; 9:524. [PMID: 29774036 PMCID: PMC5944264 DOI: 10.3389/fpls.2018.00524] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 04/04/2018] [Indexed: 05/31/2023]
Abstract
Mutagenesis in combination with Genotyping by Sequencing (GBS) is a powerful tool for introducing variation, studying gene function and identifying causal mutations underlying phenotypes of interest in crop plant genomes. About 400 million paired-end reads were obtained from 82 ethylmethane sulfonate (EMS) induced mutants and 14 wild-type accessions of Jatropha curcas for the detection of Single Nucleotide Polymorphisms (SNPs) and Insertion/Deletions (InDels) by two different approaches (nGBS and ddGBS) on an Illumina HiSeq 2000 sequencer. Using bioinformatics analyses, 1,452 induced SNPs and InDels were identified in coding regions, which were distributed across 995 genes. The predominantly observed mutations were G/C to A/T transitions (64%), while transversions were observed at a lower frequency (36%). Regarding the effect of mutations on gene function, 18% of the mutations were located in intergenic regions. In fact, mutants with the highest number of heterozygous SNPs were found in samples treated with 0.8% EMS for 3 h. Reconstruction of the metabolic pathways showed that in total 16 SNPs were located in six KEGG pathways by nGBS and two pathways by ddGBS. The most highly represented pathways were ether-lipid metabolism and glycerophospholipid metabolism, followed by starch and sucrose metabolism by nGBS and triterpenoid biosynthesis as well as steroid biosynthesis by ddGBS. Furthermore, high genome methylation was observed in J. curcas, which might help to understand the plasticity of the Jatropha genome in response to environmental factors. At last, the results showed that continuously vegetatively propagated tissue is a fast, efficient and accurate method to dissolve chimeras, especially for long-lived plants like J. curcas. Obtained data showed that allelic variations and in silico analyses of gene functions (gene function prediction), which control important traits, could be identified in mutant populations using nGBS and ddGBS. However, the handling of GBS data is more difficult and more challenging than the traditional TILLING strategy in mutated plants, since the Jatropha genome sequence is incomplete, which makes alignment and variant analysis of target sequence reads challenging to perform and interpret. Therefore, providing a complete Jatropha reference genome sequence with high quality should be a priority for any breeding program.
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Affiliation(s)
- Fatemeh Maghuly
- Plant Biotechnology Unit, Department of Biotechnology, Vienna Institute of BioTechnology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Stephan Pabinger
- Molecular Diagnostics, Center for Health & Bioresources, Austrian Institute of Technology, Vienna, Austria
| | - Julie Krainer
- Molecular Diagnostics, Center for Health & Bioresources, Austrian Institute of Technology, Vienna, Austria
| | - Margit Laimer
- Plant Biotechnology Unit, Department of Biotechnology, Vienna Institute of BioTechnology, University of Natural Resources and Life Sciences, Vienna, Austria
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Lanzinger S, Karges W, Raddatz D, Merger S, Seufert J, Thon A, Staab D, Laimer M, Holl R. Pankreopriver Diabetes mellitus: Gibt es Unterschiede in pathogenetischen Untergruppen? – Ergebnisse aus dem DPV-Register. DIABETOL STOFFWECHS 2018. [DOI: 10.1055/s-0038-1641797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- S Lanzinger
- Universität Ulm, Institut für Epidemiologie und medizinische Biometrie, ZIBMT, Ulm, Germany
- Deutsches Zentrum für Diabetesforschung (DZD), München-Neuherberg, Germany
| | - W Karges
- Universitätsklinikum Aachen, Sektion Endokrinologie und Diabetologie – Medizinische Klinik III, RWTH Aachen, Germany
| | - D Raddatz
- Universitätsmedizin Göttingen, Klinik für Gastroenterologie und gastrointestinale Onkologie, Göttingen, Germany
| | - S Merger
- Klinikum Coburg, Klinik für Endokrinologie, Diabetologie, Stoffwechsel- und Ernährungsmedizin, Coburg, Germany
| | - J Seufert
- Universitätsklinikum und Medizinische Fakultät Freiburg, Abteilung Endokrinologie und Diabetologie, Klinik für Innere Medizin II, Freiburg, Germany
| | - A Thon
- Medizinische Hochschule Hannover, Klinik für Pädiatrische Pneumologie, Allergologie & Neonatologie, Hannover, Germany
| | - D Staab
- Charité – Universitätsmedizin Berlin, Klinik für Pädiatrie m. S. Pneumologie und Immunologie, Berlin, Germany
| | - M Laimer
- Universitätsspital Bern, Universitätsklinik für Diabetologie, Endokrinologie, Ernährungsmedizin & Metabolismus (UDEM), Bern, Switzerland
| | - R Holl
- Universität Ulm, Institut für Epidemiologie und medizinische Biometrie, ZIBMT, Ulm, Germany
- Deutsches Zentrum für Diabetesforschung (DZD), München-Neuherberg, Germany
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Prinz N, Tschechowski D, Knauss E, Freff M, Kempe HP, Gericke E, Holder M, Buchal G, Birnbacher R, Laimer M, Holl RW. Laktoseintoleranz bei Diabetes: Charakteristika und Diabeteskontrolle basierend auf Daten von 437.894 Patienten des DPV-Registers. DIABETOL STOFFWECHS 2018. [DOI: 10.1055/s-0038-1641881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- N Prinz
- Universität Ulm, Institut für Epidemiologie und medizinische Biometrie, ZIBMT, Ulm, Germany
- Deutsches Zentrum für Diabetesforschung (DZD), München-Neuherberg, Germany
| | - D Tschechowski
- Universität Ulm, Institut für Epidemiologie und medizinische Biometrie, ZIBMT, Ulm, Germany
- Deutsches Zentrum für Diabetesforschung (DZD), München-Neuherberg, Germany
| | - E Knauss
- Josefinum, Klinik für Kinder und Jugendliche, Augsburg, Germany
| | - M Freff
- Darmstädter Kinderkliniken Prinzessin Margaret, Diabeteszentrum, Darmstadt, Germany
| | - HP Kempe
- Diabetologikum Ludwigshafen, Ludwigshafen, Germany
| | - E Gericke
- Klinikum Rheine, Klinik für Kinder- und Jugendmedizin, Rheine, Germany
| | - M Holder
- Klinikum Stuttgart, Olgahospital, Pädiatrie-2, Stuttgart, Germany
| | - G Buchal
- DRK Kinderklinik Siegen, Klinik für Kinder- und Jugendmedizin, Siegen, Germany
| | - R Birnbacher
- Landeskrankenhaus Villach, Abteilung für Kinder- und Jugendheilkunde, Villach, Austria
| | - M Laimer
- Universitätsspital Bern, Universitätsklinik für Diabetologie, Endokrinologie, Ernährungsmedizin und Metabolismus (UDEM), Bern, Switzerland
| | - RW Holl
- Universität Ulm, Institut für Epidemiologie und medizinische Biometrie, ZIBMT, Ulm, Germany
- Deutsches Zentrum für Diabetesforschung (DZD), München-Neuherberg, Germany
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Affiliation(s)
- M Laimer
- Department of Dermatology, Paracelsus Medical University Salzburg, Muellner Hauptstrasse 48, 5020, Salzburg, Austria
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Schwandt A, Best F, Biester T, Grünerbel A, Kopp F, Krakow D, Laimer M, Wagner C, Holl RW. Both the frequency of HbA 1c testing and the frequency of self-monitoring of blood glucose predict metabolic control: A multicentre analysis of 15 199 adult type 1 diabetes patients from Germany and Austria. Diabetes Metab Res Rev 2017; 33. [PMID: 28544457 DOI: 10.1002/dmrr.2908] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 04/10/2017] [Accepted: 05/02/2017] [Indexed: 11/08/2022]
Abstract
BACKGROUND The objective of this study was to examine the association between metabolic control and frequency of haemoglobin A1c (HbA1c ) measurements and of self-monitoring of blood glucose, as well as the interaction of both. METHODS Data of 15 199 adult type 1 diabetes patients registered in a standardized electronic health record (DPV) were included. To model the association between metabolic control and frequency of HbA1c testing or of self-monitoring of blood glucose, multiple hierarchic regression models with adjustment for confounders were fitted. Tukey-Kramer test was used to adjust P values for multiple comparisons. Vuong test was used to compare non-nested models. RESULTS The baseline variables of the study population were median age 19.9 [Q1; Q3: 18.4; 32.2] years and diabetes duration 10.4 [6.8; 15.7] years. Haemoglobin A1c was 60.4 [51.5; 72.5] mmol/mol. Frequency of HbA1c testing was 8.0 [5.0; 9.0] within 2 years, and daily self-monitoring of blood glucose frequency was 5.0 [4.0; 6.0]. After adjustment, a U-shaped association between metabolic control and frequency of HbA1c testing was observed with lowest HbA1c levels in the 3-monthly HbA1c testing group. There was an inverse relationship between self-monitoring of blood glucose and HbA1c with lower HbA1c associated with highest frequency of testing (>6 daily measurements). Quarterly HbA1c testing and frequent self-monitoring of blood glucose were associated with best metabolic control. The adjusted Vuong Z statistic suggests that metabolic control might be better explained by HbA1c testing compared to self-monitoring of blood glucose (P < .0001). CONCLUSION This research reveals the importance of quarterly clinical HbA1c monitoring together with frequent self-monitoring of blood glucose in diabetes management to reach and maintain target HbA1c .
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Affiliation(s)
- A Schwandt
- Institute of Epidemiology and Medical Biometry, ZIBMT, University of Ulm, Ulm, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - F Best
- Outpatient Diabetes Center, Essen, Germany
| | - T Biester
- AUF DER BULT, Diabetes Centre for Children and Adolescents, Hannover, Germany
| | - A Grünerbel
- Outpatient Diabetes Center Munich South, Munich, Germany
| | - F Kopp
- Department of Internal Medicine, Diabetes Center, Clinical Center Augsburg, Augsburg, Germany
| | - D Krakow
- Diabetes Center Forchheim, Forchheim, Germany
| | - M Laimer
- Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital Bern, Bern, Switzerland
| | - C Wagner
- Outpatient Diabetes Center, Surheim, Germany
| | - R W Holl
- Institute of Epidemiology and Medical Biometry, ZIBMT, University of Ulm, Ulm, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
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Gruber C, Tockner B, Laimer M, Scharler C, Common J, Tay A, Hofbauer P, Bauer J, Hofbauer JP, Lang R. 677 Low-dose calcipotriol as a therapeutic option to improve wound healing in epidermolysis bullosa. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Prodinger C, Klausegger A, Diem A, Bauer JW, Laimer M. Laryngo-onycho-cutaneous (-like) syndrome due to mutated Plectin. J Eur Acad Dermatol Venereol 2017; 31:e373-e374. [PMID: 28213897 DOI: 10.1111/jdv.14173] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- C Prodinger
- Department of Dermatology, University Hospital of the Paracelsus Medical University Salzburg, Salzburg, Austria
| | - A Klausegger
- Department of Dermatology, University Hospital of the Paracelsus Medical University Salzburg, Salzburg, Austria
| | - A Diem
- Department of Dermatology, University Hospital of the Paracelsus Medical University Salzburg, Salzburg, Austria
| | - J W Bauer
- Department of Dermatology, University Hospital of the Paracelsus Medical University Salzburg, Salzburg, Austria
| | - M Laimer
- Department of Dermatology, University Hospital of the Paracelsus Medical University Salzburg, Salzburg, Austria
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Koelblinger P, Dummer R, Laimer M, Hecht S, Bauer JW, Gaggl A, Kugler A. Vismodegib for recurrent locally destructive basal cell carcinoma in a renal transplant patient. J Eur Acad Dermatol Venereol 2017. [PMID: 28646606 DOI: 10.1111/jdv.14430] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- P Koelblinger
- Department of Dermatology, Paracelsus Medical University, 5020, Salzburg, Austria.,Department of Dermatology, University Hospital of Zurich, Zurich, Switzerland
| | - R Dummer
- Department of Dermatology, University Hospital of Zurich, Zurich, Switzerland
| | - M Laimer
- Department of Dermatology, Paracelsus Medical University, 5020, Salzburg, Austria
| | - S Hecht
- Department of Radiology, Paracelsus Medical University, 5020, Salzburg, Austria
| | - J W Bauer
- Department of Dermatology, Paracelsus Medical University, 5020, Salzburg, Austria
| | - A Gaggl
- Department of Oral and Maxillofacial Surgery, Paracelsus Medical University, 5020, Salzburg, Austria
| | - A Kugler
- Department of Dermatology, Paracelsus Medical University, 5020, Salzburg, Austria
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Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) isolates are a serious public health problem whose ever-increasing rate is commensurate with the pressure it is exerting on the healthcare system. At present, more than 20% of clinical S. aureus isolates in German hospitals are methicillin-resistant, in Austria less than 10%. Strategies from low-prevalence countries show that this development is not necessarily inevitable. In the Scandinavian countries and the Netherlands, thanks to a rigorous prevention programme, MRSA prevalence has been kept at an acceptably low level (< 1-3%). Central to these search-and-destroy control strategies is an admission screening using several MRSA swabs taken from mucocutaneous colonisation sites of high-risk patients (MRSA surveillance). It has also been reported that the speed with which MRSA carriage is detected has an important role, as it is a key component of any effective strategy to prevent the pathogen from spreading. Since MRSA culturing involves a 2-3 day delay before the final results are available, rapid detection techniques (commonly referred to as MRSA rapid tests) using polymerase chain reaction (PCR) methods and, most recently, rapid culturing methods have been developed. The implementation of rapid tests reduces the time of detection of MRSA carriers from 48-72 to 2-5 h. Clinical evaluation data have shown that MRSA can thus be detected with very high sensitivity. Specificity, however, is sometimes impaired due to false-positive PCR signals occurring in mixed flora specimens. In order to rule out false-positive PCR results, a culture screen must always be carried out simultaneously. The data provide preliminary evidence that a PCR assay can reduce nosocomial MRSA transmission in high-risk patients or high-risk areas, whereas an approach that screens all patients admitted to the hospital is probably not effective. Information concerning the cost effectiveness of rapid MRSA tests is still sparse and thus the issue remains debated.
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Affiliation(s)
- M Hell
- Zentrum für Krankenhaushygiene und Infektionskontrolle, Paracelsus Medizinische Privatuniversität Salzburg, Müllner Hauptstrasse 48, 5020, Salzburg, Österreich.
| | - J W Bauer
- Universitätsklinik für Dermatologie, Paracelsus Medizinische, Privatuniversität Salzburg, Salzburg, Österreich
| | - M Laimer
- Universitätsklinik für Dermatologie, Paracelsus Medizinische, Privatuniversität Salzburg, Salzburg, Österreich
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Schwandt A, Best F, Biester T, Grünerbel A, Kopp F, Krakow D, Laimer M, Wagner C, Holl RW. Die Häufigkeit der HbA1c-Messungen und die Häufigkeit der Blutzuckerselbstmessungen beeinflussen die Stoffwechseleinstellung! Ergebnisse einer multizentrischen Studie mit 15.199 erwachsenen Typ-1-Diabetes Patienten aus der DPV-Datenbank. DIABETOL STOFFWECHS 2016. [DOI: 10.1055/s-0036-1580871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Kugler A, Koelblinger P, Zelger B, Ahlgrimm-Siess V, Laimer M. Papillary intralymphatic angioendothelioma (PILA), also referred to as Dabska tumour, in an 83-year-old woman. J Eur Acad Dermatol Venereol 2015; 30:e59-e61. [PMID: 26333144 DOI: 10.1111/jdv.13300] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- A Kugler
- Department of Dermatology, Paracelsus Medical University Salzburg, Muellner Hauptstraße 48, A-5020, Salzburg, Austria.
| | - P Koelblinger
- Department of Dermatology, Paracelsus Medical University Salzburg, Muellner Hauptstraße 48, A-5020, Salzburg, Austria
| | - B Zelger
- Department of Dermatology, Medical University Innsbruck, Anichstraße 35, A-6020, Innsbruck, Austria
| | - V Ahlgrimm-Siess
- Department of Dermatology, Paracelsus Medical University Salzburg, Muellner Hauptstraße 48, A-5020, Salzburg, Austria
| | - M Laimer
- Department of Dermatology, Paracelsus Medical University Salzburg, Muellner Hauptstraße 48, A-5020, Salzburg, Austria
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Abstract
Since the world faced the petroleum crisis in the 1970s and people started to realize the limitation of fossil energy resources coupled with concerns over the effects of increasing carbon dioxide in the atmosphere, major efforts were devoted to the search for alternative energy sources.
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Affiliation(s)
- Margit Laimer
- University of Natural Resources and Life Sciences (BOKU), Vienna, Austria.
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Lang R, Bauer J, Laimer M. Molekulare Diagnostik beim Melanom. Hautarzt 2015; 66:277-81. [DOI: 10.1007/s00105-015-3614-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Maghuly F, Jankowicz-Cieslak J, Pabinger S, Till BJ, Laimer M. Geographic origin is not supported by the genetic variability found in a large living collection of Jatropha curcas with accessions from three continents. Biotechnol J 2015; 10:536-51. [PMID: 25511658 PMCID: PMC4413048 DOI: 10.1002/biot.201400196] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2014] [Revised: 11/19/2014] [Accepted: 12/12/2014] [Indexed: 01/15/2023]
Abstract
Increasing economic interest in Jatropha curcas requires a major research focus on the genetic background and geographic origin of this non-edible biofuel crop. To determine the worldwide genetic structure of this species, amplified fragment length polymorphisms, inter simple sequence repeats, and novel single nucleotide polymorphisms (SNPs) were employed for a large collection of 907 J. curcas accessions and related species (RS) from three continents, 15 countries and 53 regions. PCoA, phenogram, and cophenetic analyses separated RS from two J. curcas groups. Accessions from Mexico, Bolivia, Paraguay, Kenya, and Ethiopia with unknown origins were found in both groups. In general, there was a considerable overlap between individuals from different regions and countries. The Bayesian approach using structure demonstrated two groups with a low genetic variation. Analysis of molecular varience revealed significant variation among individuals within populations. SNPs found by in silico analyses of Δ12 fatty acid desaturase indicated possible changes in gene expression and thus in fatty acid profiles. SNP variation was higher in the curcin gene compared to genes involved in oil production. Novel SNPs allowed separating toxic, non-toxic, and Mexican accessions. The present study confirms that human activities had a major influence on the genetic diversity of J. curcas, not only because of domestication, but also because of biased selection.
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Affiliation(s)
- Fatemeh Maghuly
- Plant Biotechnology Unit (PBU), Department of Biotechnology, BOKU-VIBT, University of Natural Resources and Life Sciences, Vienna, Austria
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Marzban G, Kinaciyan T, Maghuly F, Brunner R, Gruber C, Hahn R, Jensen-Jarolim E, Laimer M. Impact of sulfur and vitamin C on the allergenicity of Mal d 2 from apple (Malus domestica). J Agric Food Chem 2014; 62:7622-7630. [PMID: 24983674 DOI: 10.1021/jf5020878] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Mal d 2 is a minor allergen from apple which shows a high conformational stability due to its eight conserved disulfide bridges. Chemical reduction of disulfide bridges and linearization of Mal d 2 lead to enhanced IgE reactivity in vitro and indicate a higher potential for allergenicity. Since food preservatives such as sulfur and vitamin C are reducing and denaturing agents, their influence on Mal d 2 allergenicity was verified by simulated food processing conditions. The immunoreactivity of purified Mal d 2 was investigated after different treatments in vitro and in vivo using IgG/IgE Western blotting, mediator-releasing cell assay, and skin prick and oral smear tests. The conformational changes of Mal d 2 upon addition of 1% and 5% vitamin C were also monitored by attenuated total reflectance Fourier transform infrared spectroscopy. The results show no positive skin and oral smear test reactivity to native, heated, or vitamin C-treated purified Mal d 2. Furthermore, the results confirm that sulfur in combination with heat treatment can influence the structural integrity and thus the allergenicity of Mal d 2, while vitamin C is too weak as a reducing agent to change allergenicity.
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Affiliation(s)
- Gorji Marzban
- Plant Biotechnology Unit and Down-Stream Processing Group, Department of Biotechnology, and ‡Department of Chemistry, Vienna Institute of BioTechnology (VIBT), BOKU (University of Natural Resources and Life Sciences) , Vienna 1190, Austria
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Abstract
Considering the importance of microRNAs (miRNAs) in the regulation of essential processes in plant pathogen interactions, it is not surprising that, while plant miRNA sequences counteract viral attack via antiviral RNA silencing, viruses in turn have developed antihost defense mechanisms blocking these RNA silencing pathways and establish a counter-defense. In the current study, computational and stem-loop Reverse Transcription – Polymerase Chain Reaction (RT-PCR) approaches were employed to a) predict and validate virus encoded mature miRNAs (miRs) in 39 DNA-A sequences of the bipartite genomes of African cassava mosaic virus (ACMV) and East African cassava mosaic virus-Uganda (EACMV-UG) isolates, b) determine whether virus encoded miRs/miRs* generated from the 5′/3′ harpin arms have the capacity to bind to genomic sequences of the host plants Jatropha or cassava and c) investigate whether plant encoded miR/miR* sequences have the potential to bind to the viral genomes. Different viral pre-miRNA hairpin sequences and viral miR/miR* length variants occurring as isomiRs were predicted in both viruses. These miRNAs were located in three Open Reading Frames (ORFs) and in the Intergenic Region (IR). Moreover, various target genes for miRNAs from both viruses were predicted and annotated in the host plant genomes indicating that they are involved in biotic response, metabolic pathways and transcription factors. Plant miRs/miRs* from conserved and highly expressed families were identified, which were shown to have potential targets in the genome of both begomoviruses, representing potential plant miRNAs mediating antiviral defense. This is the first assessment of predicted viral miRs/miRs* of ACMV and EACMV-UG and host plant miRNAs, providing a reference point for miRNA identification in pathogens and their hosts. These findings will improve the understanding of host- pathogen interaction pathways and the function of viral miRNAs in Euphorbiaceous crop plants.
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Affiliation(s)
- Fatemeh Maghuly
- Plant Biotechnology Unit (PBU), Department Biotechnology, University of Natural Resources and Life Sciences, BOKU-VIBT, Vienna, Austria
| | - Rose C. Ramkat
- Plant Biotechnology Unit (PBU), Department Biotechnology, University of Natural Resources and Life Sciences, BOKU-VIBT, Vienna, Austria
- Department of Biological Sciences, Egerton University, Nakuru, Kenya
| | - Margit Laimer
- Plant Biotechnology Unit (PBU), Department Biotechnology, University of Natural Resources and Life Sciences, BOKU-VIBT, Vienna, Austria
- * E-mail:
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Maghuly F, Laimer M. Jatropha curcas, a biofuel crop: functional genomics for understanding metabolic pathways and genetic improvement. Biotechnol J 2014; 8:1172-82. [PMID: 24092674 PMCID: PMC4065342 DOI: 10.1002/biot.201300231] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 07/30/2013] [Accepted: 09/06/2013] [Indexed: 12/18/2022]
Abstract
Jatropha curcas is currently attracting much attention as an oilseed crop for biofuel, as Jatropha can grow under climate and soil conditions that are unsuitable for food production. However, little is known about Jatropha, and there are a number of challenges to be overcome. In fact, Jatropha has not really been domesticated; most of the Jatropha accessions are toxic, which renders the seedcake unsuitable for use as animal feed. The seeds of Jatropha contain high levels of polyunsaturated fatty acids, which negatively impact the biofuel quality. Fruiting of Jatropha is fairly continuous, thus increasing costs of harvesting. Therefore, before starting any improvement program using conventional or molecular breeding techniques, understanding gene function and the genome scale of Jatropha are prerequisites. This review presents currently available and relevant information on the latest technologies (genomics, transcriptomics, proteomics and metabolomics) to decipher important metabolic pathways within Jatropha, such as oil and toxin synthesis. Further, it discusses future directions for biotechnological approaches in Jatropha breeding and improvement.
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Affiliation(s)
- Fatemeh Maghuly
- Plant Biotechnology Unit, Department of Biotechnology, BOKU-VIBT, University of Natural Resources and Life Sciences, Vienna, Austria
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Marzban G, Herndl A, Maghuly F, Katinger H, Laimer M. Mapping of fruit allergens by 2D electrophoresis and immunodetection. Expert Rev Proteomics 2014; 5:61-75. [DOI: 10.1586/14789450.5.1.61] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Tschoner A, Sturm W, Gelsinger C, Ress C, Laimer M, Engl J, Laimer E, Mühlmann G, Mittermair R, Kaser S, Tilg H, Ebenbichler CF. Long-term effects of weight loss after bariatric surgery on functional and structural markers of atherosclerosis. Obesity (Silver Spring) 2013; 21:1960-5. [PMID: 23512491 DOI: 10.1002/oby.20357] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Accepted: 12/16/2012] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Pronounced weight loss after bariatric surgery was demonstrated to have significant beneficial effects on surrogates of early atherosclerosis. The aim of this prospective examination was to investigate whether these improvements of endothelial function and vascular structure are persistent in the long-term. DESIGN AND METHODS A total of 52 obese adults were examined before and 5 years after bariatric surgery. Carotid intima media thickness (IMT), brachial flow-mediated dilation (FMD), abdominal fat distribution, and metabolic parameters were determined. Additional 18 months data were available from 27 patients. RESULTS After 5 years, mean weight loss ± SD of 25% ± 12 in all subjects was accompanied by known improvements in metabolism. Change in IMT was -0.02 mm ± 0.007, whereas FMD improved by +1.5% ± 0.5. In the subgroup IMT decreased by 0.04 mm ± 0.06 within the first 18 months, whereas no significant change was observed between 18 month and 5 years. FMD improved by 3.8% ± 0.6 after 18 months followed by a nonsignificant decrease of -1.4% ± 0.9. CONCLUSIONS These long-term results demonstrate that bariatric surgery-induced weight loss improves both functional and structural markers of early atherosclerosis providing further evidence for the beneficial effects of weight loss on obesity-associated alterations of the vasculature.
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Affiliation(s)
- A Tschoner
- Department for Internal Medicine I, Medical University Innsbruck, Innsbruck, Austria
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Melmer A, Wietzorrek G, Tschoner A, Sturm W, Ress C, Engl J, Kaser S, Laimer M, Laimer E, Mühlmann G, Mittermair R, Tilg H, Dieplinger H, Ebenbichler CF. Regulation von Afamin in Adipositas und Gewichtsverlustion. DIABETOL STOFFWECHS 2012. [DOI: 10.1055/s-0032-1314477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Tschoner A, Sturm W, Engl J, Kaser S, Laimer M, Laimer E, Klaus A, Patsch JR, Ebenbichler CF. Plasminogen activator inhibitor 1 and visceral obesity during pronounced weight loss after bariatric surgery. Nutr Metab Cardiovasc Dis 2012; 22:340-346. [PMID: 21093232 DOI: 10.1016/j.numecd.2010.07.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2010] [Revised: 06/21/2010] [Accepted: 07/16/2010] [Indexed: 11/21/2022]
Abstract
BACKGROUND AND AIMS Elevated plasminogen activator inhibitor 1 (PAI-1) concentrations are a hallmark of obesity and are considered to contribute to the development of cardiovascular disease. As adipose tissue constitutes a major source for PAI-1 in obesity, we investigated the individual contribution of subcutaneous and intra-abdominal fat on PAI-1 concentrations during pronounced weight loss after bariatric surgery. METHODS AND RESULTS Thirty-seven obese adults were examined before and 18 months after surgery. Abdominal fat distribution was determined by ultrasound, metabolic parameters and plasma PAI-1 levels by standard methods. BMI was reduced by 9.2 ± 4.9 kg/m(2), while total fat mass and visceral fat diameter (VFD) decreased by 20.7 ± 11.9 kg and 4.2 ± 2.3 cm, respectively. Concomitantly, PAI-1 levels diminished by 3.2 ± 5.6 ng/ml (all p ≤ 0.015). Change in PAI-1 levels was correlated with change in VFD (r = 0.441, p = 0.008), but not with subcutaneous fat diameter. In stepwise multiple regression analysis change in VFD was an independent predictor of change in PAI-1 concentrations. When adjusted for age and sex or total fat mass associations between PAI-1 and VFD remained significant. CONCLUSION We demonstrate that VFD is a major determinant for PAI-1 concentrations during pronounced weight loss after bariatric surgery. Thus, significant reduction of visceral fat mass may contribute to the reduced cardiovascular morbidity and mortality after bariatric surgery by a concomitant decrease in PAI-1 concentrations.
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Affiliation(s)
- A Tschoner
- Department of Internal Medicine I, Medical University Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria
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Maghuly F, Jankowicz-Cieslak J, Calari A, Ramkat R, Till B, Laimer M. Investigation of genetic variation in Jatropha curcasby Ecotilling and ISSR. BMC Proc 2011. [PMCID: PMC3239923 DOI: 10.1186/1753-6561-5-s7-o50] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Maghuly F, Laimer M. Microsatellite variability between apricot and related Prunusspecies. BMC Proc 2011. [PMCID: PMC3239942 DOI: 10.1186/1753-6561-5-s7-p10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Maghuly F, Kogler S, Marzban G, Nöbauer K, Razzazi E, Laimer M. Proteomics, a systems biology based approach to investigations of Jatropha curcasseeds. BMC Proc 2011. [PMCID: PMC3240011 DOI: 10.1186/1753-6561-5-s7-p162] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Ramkat R, Calari A, Maghuly F, Laimer M. Occurrence of African cassava mosaic virus (ACMV) and East African cassava mosaic virus – Uganda (EACMV-UG) in Jatropha curcas. BMC Proc 2011. [PMCID: PMC3240119 DOI: 10.1186/1753-6561-5-s7-p93] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Ramkat RC, Calari A, Maghuly F, Laimer M. Biotechnological approaches to determine the impact of viruses in the energy crop plant Jatropha curcas. Virol J 2011; 8:386. [PMID: 21812981 PMCID: PMC3163225 DOI: 10.1186/1743-422x-8-386] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2011] [Accepted: 08/03/2011] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Geminiviruses infect a wide range of plant species including Jatropha and cassava both belonging to family Euphorbiaceae. Cassava is traditionally an important food crop in Sub - Saharan countries, while Jatropha is considered as valuable biofuel plant with great perspectives in the future. RESULTS A total of 127 Jatropha samples from Ethiopia and Kenya and 124 cassava samples from Kenya were tested by Enzyme-Linked Immunosorbent Assay (ELISA) for RNA viruses and polymerase chain reaction for geminiviruses. Jatropha samples from 4 different districts in Kenya and Ethiopia (analyzed by ELISA) were negative for all three RNA viruses tested: Cassava brown streak virus (CBSV), Cassava common mosaic virus, Cucumber mosaic virus, Three cassava samples from Busia district (Kenya) contained CBSV. Efforts to develop diagnostic approaches allowing reliable pathogen detection in Jatropha, involved the amplification and sequencing of the entire DNA A molecules of 40 Kenyan isolates belonging to African cassava mosaic virus (ACMV) and East African cassava mosaic virus - Uganda. This information enabled the design of novel primers to address different questions: a) primers amplifying longer sequences led to a phylogenetic tree of isolates, allowing some predictions on the evolutionary aspects of Begomoviruses in Jatrophia; b) primers amplifying shorter sequences represent a reliable diagnostic tool. This is the first report of the two Begomoviruses in J. curcas. Two cassava samples were co - infected with cassava mosaic geminivirus and CBSV. A Defective DNA A of ACMV was found for the first time in Jatropha. CONCLUSION Cassava geminiviruses occurring in Jatropha might be spread wider than anticipated. If not taken care of, this virus infection might negatively impact large scale plantations for biofuel production. Being hosts for similar pathogens, the planting vicinity of the two crop plants needs to be handled carefully.
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Affiliation(s)
- Rose C Ramkat
- Plant Biotechnology Unit, IAM, VIBT, BOKU, Muthgasse 18, A - 1190 Vienna, Austria
| | - Alberto Calari
- Plant Biotechnology Unit, IAM, VIBT, BOKU, Muthgasse 18, A - 1190 Vienna, Austria
| | - Fatemeh Maghuly
- Plant Biotechnology Unit, IAM, VIBT, BOKU, Muthgasse 18, A - 1190 Vienna, Austria
| | - Margit Laimer
- Plant Biotechnology Unit, IAM, VIBT, BOKU, Muthgasse 18, A - 1190 Vienna, Austria
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Affiliation(s)
- M Laimer
- Department of Dermatology, Paracelsus Private Medical University Salzburg, Austria
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Isola D, Marzban G, Selbmann L, Onofri S, Laimer M, Sterflinger K. Sample preparation and 2-DE procedure for protein expression profiling of black microcolonial fungi. Fungal Biol 2011; 115:971-7. [PMID: 21944209 DOI: 10.1016/j.funbio.2011.03.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2010] [Revised: 03/01/2011] [Accepted: 03/01/2011] [Indexed: 11/27/2022]
Abstract
The ecology and stress adaptation of black rock inhabiting fungi in hot and cold extreme environments are not yet well understood. Two-dimensional gel electrophoresis (2-DE) is a promising tool to study the protein expression profiling and the metabolic status of microorganisms under stress conditions. The sample preparation has been shown to be the bottleneck for high resolution protein separation in 2-DE. For this purpose conditions must be optimized to obtain reliable and reproducible results. In addition, due to a multilayered and strongly melanized cell wall of black microcolonial fungi, special protocols for cell disruption and processing are required. In the present study, the protocol for protein extraction was established and optimized for the black yeast Exophiala jeanselmei MA 2853. The same protocol was successfully examined also for the meristematic fungus Coniosporium perforans MA 1299. Among the three procedures evaluated, trichloroacetic acid (TCA) precipitation, TCA/acetone precipitation, and phenol extraction combined with methanol/ammonium acetate precipitation, the latter showed to be the best method for black yeasts and meristematic fungi. Penicillium chrysogenum was used as reference strain.
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Affiliation(s)
- Daniela Isola
- Department of Ecology and Sustainable Economic Development, University of Tuscia, Largo dell'Università snc, 01100 Viterbo, Italy.
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Tulipani S, Marzban G, Herndl A, Laimer M, Mezzetti B, Battino M. Influence of environmental and genetic factors on health-related compounds in strawberry. Food Chem 2011. [DOI: 10.1016/j.foodchem.2010.07.018] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Maghuly F, Schmoellerl B, Temsch EM, Laimer M. Genome size, karyotyping and FISH physical mapping of 45S and 5S genes in two cherry rootstocks: Prunus subhirtella and Prunus incisa xserrula. J Biotechnol 2010; 149:88-94. [PMID: 20600377 DOI: 10.1016/j.jbiotec.2010.06.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2010] [Revised: 05/21/2010] [Accepted: 06/22/2010] [Indexed: 11/15/2022]
Abstract
Physical mapping of rDNA genes was used to karyotype two cherry rootstocks, Prunus subhirtella (PAR) and P. incisa xserrula (PIS), since the identification of homologous pairs is hampered by the high degree of similarity and the small size of the chromosomes. The genome size of PAR and PIS was obtained by flow cytometry. Chromosomal landmarks were identified by FISH of 45S rDNA and 5S rDNAs with DIG or Biotin labelled rDNA probes. Double-colour FISH landmarks were located at the terminal regions of chromosomes, differentiating three chromosome groups. Chromosomes 1, 4, 5 and 8 of both species showed no hybridization signals. The chromosomes 2, 3 and 6 of both species carried signals of 45S rDNA. In PAR, chromosomes 2 and 3 carried the 5S rDNA signals, which in PIS was located on chromosome 7. Secondary constrictions were not visible in PAR chromosomes, while PIS chromosome 2 carries one. The results suggest that the degree of chromosomal differentiation among the two Prunus species is low. This study is the first report of using FISH to determine the number and the physical position of rDNAs in PIS and PAR.
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Affiliation(s)
- Fatemeh Maghuly
- Plant Biotechnology Unit, Biotechnology Department, Institute of Applied Microbiology, BOKU University, Muthgasse 18, 1190 Vienna, Austria
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Emberger M, Koller J, Laimer M, Hell M, Oender K, Trost A, Maass M, Witte W, Hintner H, Lechner AM. Nosocomial Staphylococcal scalded skin syndrome caused by intra-articular injection. J Eur Acad Dermatol Venereol 2010; 25:227-31. [PMID: 20579227 DOI: 10.1111/j.1468-3083.2010.03766.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND The pathogenic role of nasal carriage as a source for cutaneous and soft-tissue Staphylococcus aureus (SA) infections, and Staphylococcal scalded skin syndrome (SSSS) in particular, is unclear. OBSERVATION We herein describe a nosocomial outbreak of SSSS in three orthopaedic patients who received intra-articular injections by a single orthopaedic surgeon. Bacteriological samples from the index patients and medical personnel involved in their care were assessed by phage typing, polymerase chain reaction for exfoliative toxin genes, SmaI macro-restriction analysis and molecular spa-typing. These studies first revealed SA cultural growth in synovial fluid of all three patients as well as nasal mucosa of one medical assistant. Moreover, all SA isolates had the same phage typing and antibiotic susceptibilities and were positive for exfoliative toxin ETa by polymerase chain reaction. SmaI macro-restriction and spa-typing further confirmed all proband isolates to be identical. CONCLUSION These findings provide evidence that SA nasal colonization of otherwise healthy carriers is a risk factor for SA infections, including SSSS, in predisposed individuals.
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Affiliation(s)
- M Emberger
- Department of Dermatology, Paracelsus Private Medical University of Salzburg, Salzburg, Austria.
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Laimer M, Bauer J, Lanschützer C, Nischler E, Hintner H. Epidermolysis bullosa hereditaria. Akt Dermatol 2010. [DOI: 10.1055/s-2008-1077743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Laimer M, Lanschützer CM, Emberger M, Nischler E, Stoiber J, Hintner H. [Orogenital and conjunctival involvement in hereditary and autoimmune blistering diseases]. Hautarzt 2009; 60:881-90. [PMID: 19855943 DOI: 10.1007/s00105-009-1804-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Chronic involvement of orogenital and conjunctival mucosa in the course of either genetically based (epidermolysis bullosa hereditaria) or auto-immunologically mediated (as for example pemphigus vulgaris, mucous membrane pemphigoid or epidermolysis bullosa acquisita) blistering diseases can cause significant morbidity. To provide accurate care, recognition of clinical, pathogenic and diagnostic features as well as awareness of recent advances in the development of new therapeutic modalities are mandatory and thus will be discussed in this review.
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Affiliation(s)
- M Laimer
- Universitätsklinik für Dermatologie, Paracelsus Medizinische Privatuniversität (PMU) Salzburg/Salzburger Landeskliniken (SALK), 5020 Salzburg, Osterreich.
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Abstract
Berries contain powerful antioxidants, potential allergens, and other bioactive compounds. Genetic and environmental factors affect production and storage of such compounds. For this reason breeding and biotechnological approaches are currently used to control or to increase the content of specific health-related compounds in fruits. This work reviews the main bioactive compounds determining the nutritional quality of berries, the major factors affecting their content and activity, and the genetic options currently available to achieve new genotypes able to provide, under controlled cultivation conditions, berries with the proper balance of bioactive compounds for improving consumer health.
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Affiliation(s)
- Maurizio Battino
- Institute of Biochemistry, Università Politecnica delle Marche, Ancona, Italy.
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Gambino G, Perrone I, Carra A, Chitarra W, Boccacci P, Torello Marinoni D, Barberis M, Maghuly F, Laimer M, Gribaudo I. Transgene silencing in grapevines transformed with GFLV resistance genes: analysis of variable expression of transgene, siRNAs production and cytosine methylation. Transgenic Res 2009; 19:17-27. [PMID: 19507046 DOI: 10.1007/s11248-009-9289-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2008] [Accepted: 05/26/2009] [Indexed: 10/20/2022]
Abstract
Eight transgenic grapevine lines transformed with the coat protein gene of Grapevine fanleaf virus (GFLV-CP) were analyzed for a correlation between transgene expression, siRNAs production and DNA methylation. Bisulphite genome sequencing was used for a comprehensive analysis of DNA methylation. Methylated cytosine residues of CpG and CpNpG sites were detected in the GFLV-CP transgene, in the T7 terminator and in the 35S promoter of three grapevines without transgene expression, but no detectable level of siRNAs was recorded in these lines. The detailed analysis of 8 lines revealed the complex arrangements of T-DNA and integrated binary vector sequences as crucial factors that influence transgene expression. After inoculation with GFLV, no change in the levels of cytosine methylation was observed, but transgenic and untransformed plants produced short siRNAs (21-22 nt) indicating that the grapevine plants responded to GFLV infection by activating a post-transcriptional gene silencing mechanism.
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Affiliation(s)
- Giorgio Gambino
- Plant Virology Institute CNR (IVV), Grugliasco Unit., 10095 Grugliasco-TO, Italy.
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Maghuly F, Borroto-Fernandez EG, Khan MA, Herndl A, Marzban G, Laimer M. Expression of calmodulin and lipid transfer protein genes in Prunus incisa x serrula under different stress conditions. Tree Physiol 2009; 29:437-444. [PMID: 19203962 DOI: 10.1093/treephys/tpn036] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Calcium-binding proteins and pathogenesis-related (PR) proteins are crucial components of the inducible repertoire of plant stress and defence. Considering the important role played by calmodulin (CaM) and lipid transfer protein (LTP) in mediating plant signal transduction, the present study investigated the expression of Ltp and CaM genes in Prunus incisa x serrula (PIS) under various abiotic stress conditions. The aim of this study is to find out whether expression of these proteins is regulated in parallel or independently and to compare the expression profiles of CaM and allergenic proteins like Ltp under different stress conditions. Southern blot analyses indicated that Ltp and CaM are encoded by at least two to four genes, which might be indicative for the expected variability and presence of isoforms. Transcription levels of both genes were analysed in leaves and roots of micropropagated plantlets under low and high temperatures, salicylic acid and wounding stress, harvested after 0, 0.5, 1, 2, 4, 10, 24 and 72 h. Real Time qPCR data showed that both genes respond differently to various stresses. Furthermore, a high variation in transcription levels of both genes was observed in leaf tissues, while in roots both genes were expressed at a lower extent and down-regulated. Western blot analyses indicated that after 24 h the amount of CaM protein is higher, while the amount of LTP is lower in various stresses. Results obtained suggest that CaM and LTP are differentially regulated in response to different stresses in PIS plants, and additionally show tissue-specific expression, hinting at a potential role of different isoforms.
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Affiliation(s)
- Fatemeh Maghuly
- Plant Biotechnology Unit, Biotechnology Department, BOKU University, Muthgasse 18, 1190 Vienna, Austria
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Marzban G, Herndl A, Pietrozotto S, Banerjee S, Obinger C, Maghuly F, Hahn R, Boscia D, Katinger H, Laimer M. Conformational changes of Mal d 2, a thaumatin-like apple allergen, induced by food processing. Food Chem 2009. [DOI: 10.1016/j.foodchem.2008.06.051] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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