LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 1105

Search options

  1. Article: An Update on Addison’s Disease

    Barthel, Andreas / Benker, Georg / Berens, Kai / Diederich, Sven / Manfras, Burkhard / Gruber, Matthias / Kanczkowski, Waldemar / Kline, Greg / Kamvissi-Lorenz, Virginia / Hahner, Stefanie / Beuschlein, Felix / Brennand, Ana / Boehm, Bernhard O. / Torpy, David J. / Bornstein, Stefan R.

    Experimental and Clinical Endocrinology & Diabetes

    2018  Volume 127, Issue 02/03, Page(s) 165–175

    Abstract: Addison’s disease – the traditional term for primary adrenal insufficiency (PAI) – is defined ...

    Abstract Addison’s disease – the traditional term for primary adrenal insufficiency (PAI) – is defined as the clinical manifestation of chronic glucocorticoid- and/or mineralocorticoid deficiency due to failure of the adrenal cortex which may result in an adrenal crisis with potentially life-threatening consequences. Even though efficient and safe pharmaceutical preparations for the substitution of endogenous gluco- and mineralocorticoids are established in therapy, the mortality in patients with PAI is still increased and the health-related quality of life (HRQoL) is often reduced. PAI is a rare disease but recent data report an increasing prevalence. In addition to the common “classical” causes of PAI like autoimmune, infectious, neoplastic and genetic disorders, other iatrogenic conditions – mostly pharmacological side effects (e. g., adrenal haemorrhage associated with anticoagulants, drugs affecting glucocorticoid synthesis, action or metabolism and some of the novel anti-cancer checkpoint inhibitors) are contributing factors to this phenomenon. Due to the rarity of the disease and often non-specific symptoms at least in the early stages, PAI is frequently not considered resulting in a delayed diagnosis. Successful therapy is mainly based on adequate patient education as a cornerstone in the prevention and management of adrenal crisis. A focus of current research is in the development of pharmacokinetically optimized glucocorticoid preparations as well as regenerative therapies.
    Keywords primary adrenal insufficiency ; addison’s disease ; diagnosis ; replacement therapy ; glucocorticoid ; mineralocorticoid ; dehydroepiandrosterone ; adrenal crisis ; clinical practice guideline
    Language English
    Publishing date 2018-12-18
    Publisher © Georg Thieme Verlag KG
    Publishing place Stuttgart ; New York
    Document type Article
    ZDB-ID 1225416-2
    ISSN 1439-3646 ; 0947-7349
    ISSN (online) 1439-3646
    ISSN 0947-7349
    DOI 10.1055/a-0804-2715
    Database Thieme publisher's database

    More links

    Kategorien

  2. Article: Digging Up the Roots: Taxonomic and Phylogenetic Disentanglements in Corticiaceae s.s. (Corticiales, Basidiomycota) and Evolution of Nutritional Modes.

    Ghobad-Nejhad, Masoomeh / Langer, Ewald / Nakasone, Karen / Diederich, Paul / Nilsson, R Henrik / Rajchenberg, Mario / Ginns, James

    Frontiers in microbiology

    2021  Volume 12, Page(s) 704802

    Abstract: Corticiaceae is one of the traditional families of the Agaricomycetes and served for a long time as a convenient placement for basidiomycetes with a resupinate, corticioid form of fruiting body. Molecular studies have helped to assign many corticioid ... ...

    Abstract Corticiaceae is one of the traditional families of the Agaricomycetes and served for a long time as a convenient placement for basidiomycetes with a resupinate, corticioid form of fruiting body. Molecular studies have helped to assign many corticioid fungi to diverse families and orders; however, Corticiaceae still lacks a phylogenetic characterization and modern circumscription. Here, we provide the first comprehensive phylogenetic and taxonomic revision of the family Corticiaceae based on extensive type studies and sequences of nLSU, ITS, IGS, nSSU, and mtSSU regions. Our analyses support the recognition of ten monophyletic genera in the Corticiaceae, and show that nutritional mode is not a robust basis for generic delimitations in the family. The genus
    Language English
    Publishing date 2021-08-25
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2587354-4
    ISSN 1664-302X
    ISSN 1664-302X
    DOI 10.3389/fmicb.2021.704802
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Mitochondria interaction networks show altered topological patterns in Parkinson’s disease

    Massimiliano Zanin / Bruno F. R. Santos / Paul M. A. Antony / Clara Berenguer-Escuder / Simone B. Larsen / Zoé Hanss / Peter A. Barbuti / Aidos S. Baumuratov / Dajana Grossmann / Christophe M. Capelle / Joseph Weber / Rudi Balling / Markus Ollert / Rejko Krüger / Nico J. Diederich / Feng Q. He

    npj Systems Biology and Applications, Vol 6, Iss 1, Pp 1-

    2020  Volume 12

    Abstract: Abstract Mitochondrial dysfunction is linked to pathogenesis of Parkinson’s disease (PD ...

    Abstract Abstract Mitochondrial dysfunction is linked to pathogenesis of Parkinson’s disease (PD). However, individual mitochondria-based analyses do not show a uniform feature in PD patients. Since mitochondria interact with each other, we hypothesize that PD-related features might exist in topological patterns of mitochondria interaction networks (MINs). Here we show that MINs formed nonclassical scale-free supernetworks in colonic ganglia both from healthy controls and PD patients; however, altered network topological patterns were observed in PD patients. These patterns were highly correlated with PD clinical scores and a machine-learning approach based on the MIN features alone accurately distinguished between patients and controls with an area-under-curve value of 0.989. The MINs of midbrain dopaminergic neurons (mDANs) derived from several genetic PD patients also displayed specific changes. CRISPR/CAS9-based genome correction of alpha-synuclein point mutations reversed the changes in MINs of mDANs. Our organelle-interaction network analysis opens another critical dimension for a deeper characterization of various complex diseases with mitochondrial dysregulation.
    Keywords Biology (General) ; QH301-705.5
    Subject code 610
    Language English
    Publishing date 2020-11-01T00:00:00Z
    Publisher Nature Publishing Group
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  4. Article ; Online: iPSC-Derived Microglia as a Model to Study Inflammation in Idiopathic Parkinson’s Disease

    Katja Badanjak / Patrycja Mulica / Semra Smajic / Sylvie Delcambre / Leon-Charles Tranchevent / Nico Diederich / Thomas Rauen / Jens C. Schwamborn / Enrico Glaab / Sally A. Cowley / Paul M. A. Antony / Sandro L. Pereira / Carmen Venegas / Anne Grünewald

    Frontiers in Cell and Developmental Biology, Vol

    2021  Volume 9

    Abstract: Parkinson’s disease (PD) is a neurodegenerative disease with unknown cause in the majority ...

    Abstract Parkinson’s disease (PD) is a neurodegenerative disease with unknown cause in the majority of patients, who are therefore considered “idiopathic” (IPD). PD predominantly affects dopaminergic neurons in the substantia nigra pars compacta (SNpc), yet the pathology is not limited to this cell type. Advancing age is considered the main risk factor for the development of IPD and greatly influences the function of microglia, the immune cells of the brain. With increasing age, microglia become dysfunctional and release pro-inflammatory factors into the extracellular space, which promote neuronal cell death. Accordingly, neuroinflammation has also been described as a feature of PD. So far, studies exploring inflammatory pathways in IPD patient samples have primarily focused on blood-derived immune cells or brain sections, but rarely investigated patient microglia in vitro. Accordingly, we decided to explore the contribution of microglia to IPD in a comparative manner using, both, iPSC-derived cultures and postmortem tissue. Our meta-analysis of published RNAseq datasets indicated an upregulation of IL10 and IL1B in nigral tissue from IPD patients. We observed increased expression levels of these cytokines in microglia compared to neurons using our single-cell midbrain atlas. Moreover, IL10 and IL1B were upregulated in IPD compared to control microglia. Next, to validate these findings in vitro, we generated IPD patient microglia from iPSCs using an established differentiation protocol. IPD microglia were more readily primed as indicated by elevated IL1B and IL10 gene expression and higher mRNA and protein levels of NLRP3 after LPS treatment. In addition, IPD microglia had higher phagocytic capacity under basal conditions—a phenotype that was further exacerbated upon stimulation with LPS, suggesting an aberrant microglial function. Our results demonstrate the significance of microglia as the key player in the neuroinflammation process in IPD. While our study highlights the importance of microglia-mediated inflammatory ...
    Keywords microglia ; iPSC ; neuroinflammation ; idiopathic Parkinson’s disease ; disease modeling ; Biology (General) ; QH301-705.5
    Subject code 610
    Language English
    Publishing date 2021-11-01T00:00:00Z
    Publisher Frontiers Media S.A.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  5. Article ; Online: Fibroblast mitochondria in idiopathic Parkinson’s disease display morphological changes and enhanced resistance to depolarization

    P. M. A. Antony / O. Kondratyeva / K. Mommaerts / M. Ostaszewski / K. Sokolowska / A. S. Baumuratov / L. Longhino / J. F. Poulain / D. Grossmann / R. Balling / R. Krüger / N. J. Diederich

    Scientific Reports, Vol 10, Iss 1, Pp 1-

    2020  Volume 10

    Abstract: Abstract Mitochondrial dysfunction is a hallmark in idiopathic Parkinson’s disease (IPD). Here ...

    Abstract Abstract Mitochondrial dysfunction is a hallmark in idiopathic Parkinson’s disease (IPD). Here, we established screenable phenotypes of mitochondrial morphology and function in primary fibroblasts derived from patients with IPD. Upper arm punch skin biopsy was performed in 41 patients with mid-stage IPD and 21 age-matched healthy controls. At the single-cell level, the basal mitochondrial membrane potential (Ψm) was higher in patients with IPD than in controls. Similarly, under carbonyl cyanide 4-(trifluoromethoxy)phenylhydrazone (FCCP) stress, the remaining Ψm was increased in patients with IPD. Analysis of mitochondrial morphometric parameters revealed significantly decreased mitochondrial connectivity in patients with IPD, with 9 of 14 morphometric mitochondrial parameters differing from those in controls. Significant morphometric mitochondrial changes included the node degree, mean volume, skeleton size, perimeter, form factor, node count, erosion body count, endpoints, and mitochondria count (all P-values < 0.05). These functional data reveal that resistance to depolarization was increased by treatment with the protonophore FCCP in patients with IPD, whereas morphometric data revealed decreased mitochondrial connectivity and increased mitochondrial fragmentation.
    Keywords Medicine ; R ; Science ; Q
    Subject code 610
    Language English
    Publishing date 2020-01-01T00:00:00Z
    Publisher Nature Publishing Group
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  6. Article ; Online: Parkinson’s Disease

    Sarah Ciccone / Emiliano Maiani / Giovanna Bellusci / Marc Diederich / Stefania Gonfloni

    International Journal of Molecular Sciences, Vol 14, Iss 2, Pp 2388-

    A Complex Interplay of Mitochondrial DNA Alterations and Oxidative Stress

    2013  Volume 2409

    Abstract: Parkinson’s disease (PD) is one of the most common age-related neurodegenerative diseases ...

    Abstract Parkinson’s disease (PD) is one of the most common age-related neurodegenerative diseases. This pathology causes a significant loss of dopaminergic neurons in the Substantia Nigra. Several reports have claimed a role of defective nuclear and mitochondrial DNA repair pathways in PD etiology, in particular, of the Base Excision Repair (BER) system. In addition, recent findings, related to PD progression, indicate that oxidative stress pathways involving c-Abl and GST could also be implicated in this pathology. This review focuses on recently described networks most likely involved in an integrated manner in the course of PD.
    Keywords neurodegenerative diseases ; Parkinson’s disease (PD) ; base excision repair (BER) ; mitochondria ; oxidative stress ; reactive oxidative species (ROS) ; reactive nitrogen species (RNS) ; c-Abl ; reduced glutathione (GSH) ; oxidized glutathione (GSS-) ; Chemistry ; QD1-999 ; Science ; Q ; DOAJ:Chemistry (General) ; DOAJ:Chemistry
    Language English
    Publishing date 2013-01-01T00:00:00Z
    Publisher Multidisciplinary Digital Publishing Institute
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  7. Article ; Online: Parkinson’s Disease

    Sarah Ciccone / Emiliano Maiani / Giovanna Bellusci / Marc Diederich / Stefania Gonfloni

    International Journal of Molecular Sciences, Vol 14, Iss 2, Pp 2388-

    A Complex Interplay of Mitochondrial DNA Alterations and Oxidative Stress

    2013  Volume 2409

    Abstract: Parkinson’s disease (PD) is one of the most common age-related neurodegenerative diseases ...

    Abstract Parkinson’s disease (PD) is one of the most common age-related neurodegenerative diseases. This pathology causes a significant loss of dopaminergic neurons in the Substantia Nigra. Several reports have claimed a role of defective nuclear and mitochondrial DNA repair pathways in PD etiology, in particular, of the Base Excision Repair (BER) system. In addition, recent findings, related to PD progression, indicate that oxidative stress pathways involving c-Abl and GST could also be implicated in this pathology. This review focuses on recently described networks most likely involved in an integrated manner in the course of PD.
    Keywords neurodegenerative diseases ; Parkinson’ ; s disease (PD) ; base excision repair (BER) ; mitochondria ; oxidative stress ; reactive oxidative species (ROS) ; reactive nitrogen species (RNS) ; c-Abl ; reduced glutathione (GSH) ; oxidized glutathione (GSS-) ; Biology (General) ; QH301-705.5 ; Chemistry ; QD1-999
    Language English
    Publishing date 2013-01-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  8. Article ; Online: Synergistic AML Cell Death Induction by Marine Cytotoxin (+)-1( R ), 6( S ), 1’( R ), 6’( S ), 11( R ), 17( S )-Fistularin-3 and Bcl-2 Inhibitor Venetoclax

    Cristina Florean / Kyung Rok Kim / Michael Schnekenburger / Hyun-Jung Kim / Céline Moriou / Cécile Debitus / Mario Dicato / Ali Al-Mourabit / Byung Woo Han / Marc Diederich

    Marine Drugs, Vol 16, Iss 12, p

    2018  Volume 518

    Abstract: ... to eradicate resistant AML cells. We show here that 1( R ), 6( S ), 1’( R ), 6’( S ), 11( R ), 17( S ... 17( S )-fistularin-3 stereoisomer keeping the known configuration 1( R ), 6( S ), 1’( R ), and 6’( S ...

    Abstract Treatment of acute myeloid leukemia (AML) patients is still hindered by resistance and relapse, resulting in an overall poor survival rate. Recently, combining specific B-cell lymphoma (Bcl)-2 inhibitors with compounds downregulating myeloid cell leukemia (Mcl)-1 has been proposed as a new effective strategy to eradicate resistant AML cells. We show here that 1( R ), 6( S ), 1’( R ), 6’( S ), 11( R ), 17( S )-fistularin-3, a bromotyrosine compound of the fistularin family, isolated from the marine sponge Suberea clavata , synergizes with Bcl-2 inhibitor ABT-199 to efficiently kill Mcl-1/Bcl-2-positive AML cell lines, associated with Mcl-1 downregulation and endoplasmic reticulum stress induction. The absolute configuration of carbons 11 and 17 of the fistularin-3 stereoisomer was fully resolved in this study for the first time, showing that the fistularin we isolated from the marine sponge Subarea clavata is in fact the (+)-11( R ), 17( S )-fistularin-3 stereoisomer keeping the known configuration 1( R ), 6( S ), 1’( R ), and 6’( S ) for the verongidoic acid part. Docking studies and in vitro assays confirm the potential of this family of molecules to inhibit DNA methyltransferase 1 activity.
    Keywords acute myeloid leukemia ; ABT-199 ; Mcl-1 ; bromotyrosine ; (+)-11( R ) ; 17( S )-fistularin-3 ; configuration ; anticancer drug combination ; Biology (General) ; QH301-705.5
    Subject code 610
    Language English
    Publishing date 2018-12-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  9. Article: Regulation of epigenetic traits of the glutathione S-transferase P1 gene: from detoxification toward cancer prevention and diagnosis.

    Schnekenburger, Michael / Karius, Tommy / Diederich, Marc

    Frontiers in pharmacology

    2014  Volume 5, Page(s) 170

    Abstract: Glutathione S-transferases (GSTs) are phase II drug detoxifying enzymes that play an essential role ... to a wide variety of exo- and endogenous electrophilic substrates. Glutathione S-transferase P1 (GSTP1 ...

    Abstract Glutathione S-transferases (GSTs) are phase II drug detoxifying enzymes that play an essential role in the maintenance of cell integrity and protection against DNA damage by catalyzing the conjugation of glutathione to a wide variety of exo- and endogenous electrophilic substrates. Glutathione S-transferase P1 (GSTP1), the gene encoding the pi-class GST, is frequently inactivated by acquired somatic CpG island promoter hypermethylation in multiple cancer subtypes including prostate, breast, liver, and blood cancers. Epigenetically mediated GSTP1 silencing is associated with enhanced cancer susceptibility by decreasing its "caretaker" gene function, which tends to promote neoplastic transformation allowing cells to acquire additional alterations. Thus, this epigenetic alteration is now considered as a cancer biomarker but could as well play a driving role in multistep cancer development, especially well documented in prostate cancer development. The present review discusses applications of epigenetic alterations affecting GSTP1 in cancer medicine used alone or in combination with other biomarkers for cancer detection and diagnosis as well as for future targeted preventive and therapeutic interventions including by dietary agents.
    Language English
    Publishing date 2014-07-16
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2587355-6
    ISSN 1663-9812
    ISSN 1663-9812
    DOI 10.3389/fphar.2014.00170
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Desinfektionsverfahren bei den einzelnen Tierseuchen

    Diederich, Sandra

    Ebola-Virus-Infektion

    2023  

    Keywords Text ; ddc:630 ; FLI-Information -- Desinfektion -- Anzeigepflichtige Tierseuche -- Ebola-Virus-Infektion -- Filovirus
    Language German
    Publishing date 2023-03-20
    Publishing country de
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

To top