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  1. Article: Retinoprotective compounds, current efficacy, and future prospective.

    Marino, Rachele / Sappington, Rebecca / Feligioni, Marco

    Neural regeneration research

    2023  Volume 18, Issue 12, Page(s) 2619–2622

    Abstract: Retinal dysfunction is the most common cause of vision loss in several retinal disorders. It has been estimated a great increase in these pathologies that are becoming more globally widespread and numerous over time, also supported by the life expectancy ...

    Abstract Retinal dysfunction is the most common cause of vision loss in several retinal disorders. It has been estimated a great increase in these pathologies that are becoming more globally widespread and numerous over time, also supported by the life expectancy increment. Among different types of retinopathies, we can account some that share causes, symptoms, and treatment including diabetic retinopathy, age-related macular degeneration, glaucoma, and retinitis pigmentosa. Molecular changes, environmental factors, and genetic predisposition might be some of the main causes that drive retinal tissue to chronic inflammation and neurodegeneration in these retinopathies. The treatments available on the market contain compounds that efficiently ameliorate some of the important clinical features of these pathologies like stabilization of the intraocular pressure, reduction of eye inflammation, control of eye oxidative stress which are considered the major molecular mechanisms related to retinal dysfunction. Indeed, the most commonly used drugs are anti-inflammatories, such as corticosteroids, antioxidant, hypotonic molecules and natural neuroprotective compounds. Unfortunately, these drugs, which are fundamental to treating disease symptoms, are not capable to cure the pathologies and so they are not life-changing for patients. This review provided an overview of current treatments on the market, but more interestingly, wants to be a quick window on the new treatments that are now in clinical trials. Additionally, it has been here highlighted that the recent technical enhancement of the investigation methods to identify the various retinopathies causes might be used as a sort of "precise medicine" approach to tailor the identification of molecular pathways involved and potentially study a dedicated treatment for each patient. This approach includes the use of cutting-edge technologies like gene therapy and metabolomics.
    Language English
    Publishing date 2023-06-21
    Publishing country India
    Document type Journal Article ; Review
    ZDB-ID 2388460-5
    ISSN 1876-7958 ; 1673-5374
    ISSN (online) 1876-7958
    ISSN 1673-5374
    DOI 10.4103/1673-5374.373662
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: From cardiovascular system to brain, the potential protective role of Mas Receptors in COVID-19 infection.

    Cappelletti, Pamela / Gallo, Giovanna / Marino, Rachele / Palaniappan, Sakthimala / Corbo, Massimo / Savoia, Carmine / Feligioni, Marco

    European journal of pharmacology

    2023  Volume 959, Page(s) 176061

    Abstract: Coronavirus disease 2019 (COVID-19) has been declared a new pandemic in March 2020. Although most patients are asymptomatic, those with underlying cardiovascular comorbidities may develop a more severe systemic infection which is often associated with ... ...

    Abstract Coronavirus disease 2019 (COVID-19) has been declared a new pandemic in March 2020. Although most patients are asymptomatic, those with underlying cardiovascular comorbidities may develop a more severe systemic infection which is often associated with fatal pneumonia. Nonetheless, neurological and cardiovascular manifestations could be present even without respiratory symptoms. To date, no COVID-19-specific drugs are able for preventing or treating the infection and generally, the symptoms are relieved with general anti-inflammatory drugs. Angiotensin-converting-enzyme 2 (ACE2) may function as the receptor for virus entry within the cells favoring the progression of infection in the organism. On the other hand, ACE2 is a relevant enzyme in renin angiotensin system (RAS) cascade fostering Ang1-7/Mas receptor activation which promotes protective effects in neurological and cardiovascular systems. It is known that RAS is composed by two functional countervailing axes the ACE/AngII/AT1 receptor and the ACE/AngII/AT2 receptor which counteracts the actions mediated by AngII/AT1 receptor by inducing anti-inflammatory, antioxidant and anti-growth functions. Subsequently an "alternative" ACE2/Ang1-7/Mas receptor axis has been described with functions similar to the latter protective arm. Here, we discuss the neurological and cardiovascular effects of COVID-19 highlighting the role of the stimulation of the RAS "alternative" protective arm in attenuating pulmonary, cerebral and cardiovascular damages. In conclusion, only two clinical trials are running for Mas receptor agonists but few other molecules are in preclinical phase and if successful these drugs might represent a successful strategy for the treatment of the acute phase of COVID-19 infection.
    MeSH term(s) Humans ; COVID-19 ; Peptidyl-Dipeptidase A/metabolism ; Angiotensin-Converting Enzyme 2 ; Receptor, Angiotensin, Type 1 ; Renin-Angiotensin System ; Cardiovascular System/metabolism ; Brain/metabolism ; Anti-Inflammatory Agents/pharmacology
    Chemical Substances Peptidyl-Dipeptidase A (EC 3.4.15.1) ; Angiotensin-Converting Enzyme 2 (EC 3.4.17.23) ; Receptor, Angiotensin, Type 1 ; Anti-Inflammatory Agents
    Language English
    Publishing date 2023-09-27
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 80121-5
    ISSN 1879-0712 ; 0014-2999
    ISSN (online) 1879-0712
    ISSN 0014-2999
    DOI 10.1016/j.ejphar.2023.176061
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Modifications of H3K4 methylation levels are associated with DNA hypermethylation in acute myeloid leukemia

    Scalea, Stefania / Maresca, Carmen / Catalanotto, Caterina / Marino, Rachele / Cogoni, Carlo / Reale, Anna / Zampieri, Michele / Zardo, Giuseppe

    FEBS journal. 2020 Mar., v. 287, no. 6

    2020  

    Abstract: The ‘instructive model’ of aberrant DNA methylation in human tumors is based on the observation that CpG islands prone to hypermethylation in cancers are embedded in chromatin enriched in H3K27me3 in human embryonic stem cells (hESC). Recent studies also ...

    Abstract The ‘instructive model’ of aberrant DNA methylation in human tumors is based on the observation that CpG islands prone to hypermethylation in cancers are embedded in chromatin enriched in H3K27me3 in human embryonic stem cells (hESC). Recent studies also link methylation of CpG islands to the methylation status of H3K4, where H3K4me3 is inversely correlated with DNA methylation. To provide insight into these conflicting findings, we generated DNA methylation profiles for acute myeloid leukemia samples from patients and leukemic cell lines and integrated them with publicly available ChIp‐seq data, containing H3K4me3 and H3K27me3 CpG island occupation in hESC, or hematopoietic stem or progenitor cells (hHSC/MPP). Hypermethylated CpG islands in AML samples displayed H3K27me3 enrichments in hESC and hHSC/MPP; however, ChIp analysis of specific hypermethylated CpG islands revealed a significant reduction in H3K4me3 signal with a concomitant increase in H3K4me0 levels as opposed to a nonsignificant increase in H3K27me3 marks. The integration of AML DNA methylation profiles with the ChIp‐seq data in hESC and hHSC/MPP also led to the identification of Iroquois homeobox 2 (IRX2) as a previously unknown factor promoting differentiation of leukemic cells. Our results indicate that in contrast to the ‘instructive model’, H3K4me3 levels are strongly associated with DNA methylation patterns in AML and have a role in the regulation of critical genes, such as the putative tumor suppressor IRX2.
    Keywords DNA hypermethylation ; chromatin ; chromatin immunoprecipitation ; genomic islands ; humans ; myeloid leukemia ; occupations
    Language English
    Dates of publication 2020-03
    Size p. 1155-1175.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note NAL-AP-2-clean ; JOURNAL ARTICLE
    ZDB-ID 2173655-8
    ISSN 1742-4658 ; 1742-464X
    ISSN (online) 1742-4658
    ISSN 1742-464X
    DOI 10.1111/febs.15086
    Database NAL-Catalogue (AGRICOLA)

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  4. Article ; Online: Modifications of H3K4 methylation levels are associated with DNA hypermethylation in acute myeloid leukemia.

    Scalea, Stefania / Maresca, Carmen / Catalanotto, Caterina / Marino, Rachele / Cogoni, Carlo / Reale, Anna / Zampieri, Michele / Zardo, Giuseppe

    The FEBS journal

    2019  Volume 287, Issue 6, Page(s) 1155–1175

    Abstract: The 'instructive model' of aberrant DNA methylation in human tumors is based on the observation that CpG islands prone to hypermethylation in cancers are embedded in chromatin enriched in H3K27me3 in human embryonic stem cells (hESC). Recent studies also ...

    Abstract The 'instructive model' of aberrant DNA methylation in human tumors is based on the observation that CpG islands prone to hypermethylation in cancers are embedded in chromatin enriched in H3K27me3 in human embryonic stem cells (hESC). Recent studies also link methylation of CpG islands to the methylation status of H3K4, where H3K4me3 is inversely correlated with DNA methylation. To provide insight into these conflicting findings, we generated DNA methylation profiles for acute myeloid leukemia samples from patients and leukemic cell lines and integrated them with publicly available ChIp-seq data, containing H3K4me3 and H3K27me3 CpG island occupation in hESC, or hematopoietic stem or progenitor cells (hHSC/MPP). Hypermethylated CpG islands in AML samples displayed H3K27me3 enrichments in hESC and hHSC/MPP; however, ChIp analysis of specific hypermethylated CpG islands revealed a significant reduction in H3K4me3 signal with a concomitant increase in H3K4me0 levels as opposed to a nonsignificant increase in H3K27me3 marks. The integration of AML DNA methylation profiles with the ChIp-seq data in hESC and hHSC/MPP also led to the identification of Iroquois homeobox 2 (IRX2) as a previously unknown factor promoting differentiation of leukemic cells. Our results indicate that in contrast to the 'instructive model', H3K4me3 levels are strongly associated with DNA methylation patterns in AML and have a role in the regulation of critical genes, such as the putative tumor suppressor IRX2.
    MeSH term(s) Cell Line, Tumor ; DNA Methylation/genetics ; Histones/metabolism ; Homeodomain Proteins/genetics ; Humans ; Leukemia, Myeloid, Acute/genetics ; Transcription Factors/genetics
    Chemical Substances Histones ; Homeodomain Proteins ; IRX2 protein, human ; Transcription Factors ; histone H3 trimethyl Lys4
    Language English
    Publishing date 2019-10-23
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2173655-8
    ISSN 1742-4658 ; 1742-464X
    ISSN (online) 1742-4658
    ISSN 1742-464X
    DOI 10.1111/febs.15086
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Drug-resistant tuberculosis in Naples, 2008-2013.

    Del Giudice, Annalisa / Mustazzolu, Alessandro / Iacobino, Angelo / Perna, Rossella / Smeraglia, Riccardo / Marino, Rachele / Fattorini, Lanfranco / Santoro, Giulia

    Annali dell'Istituto superiore di sanita

    2016  Volume 52, Issue 4, Page(s) 603–607

    Abstract: Background: Drug-resistant tuberculosis (TB) is a serious threat in industrialized countries, but information from Southern Italy is lacking. Here, we present the results of a retrospective study of TB cases diagnosed in 2008-2013 in Naples, the largest ...

    Abstract Background: Drug-resistant tuberculosis (TB) is a serious threat in industrialized countries, but information from Southern Italy is lacking. Here, we present the results of a retrospective study of TB cases diagnosed in 2008-2013 in Naples, the largest city in Southern Italy.
    Methods: Six hundred ninety Mycobacterium tuberculosis strains were isolated at the Ospedali dei Colli of Naples, and resistance to first-line and second-line drugs was determined.
    Results: Multidrug-resistant (MDR) TB increased from 2008 to 2013, with 77.4% of strains isolated from migrants from 41 countries. Overall, 4.5% of strains were MDR: Italian-born persons, 2.2%; Romania, 7.5%; Former Soviet Union countries (Ukraine, Russia, Armenia, Georgia), 22.4%; all other foreign countries, 2.0%. Resistance of MDR strains to second-line drugs was high against kanamycin, ofloxacin, capreomycin.
    Conclusions: MDR-TB in Naples increased in 2008-13 and was observed predominantly in migrants, indicating the need to intensify diagnosis and treatment of these populations in this town.
    MeSH term(s) Adolescent ; Adult ; Aged ; Aged, 80 and over ; Antitubercular Agents/pharmacology ; Antitubercular Agents/therapeutic use ; Child ; Child, Preschool ; Drug Resistance, Multiple, Bacterial ; Female ; Humans ; Infant ; Male ; Microbial Sensitivity Tests ; Middle Aged ; Mycobacterium tuberculosis/drug effects ; Nepal/epidemiology ; Retrospective Studies ; Transients and Migrants ; Tuberculosis, Multidrug-Resistant/epidemiology ; Tuberculosis, Multidrug-Resistant/microbiology ; Young Adult
    Chemical Substances Antitubercular Agents
    Language English
    Publishing date 2016-10
    Publishing country Italy
    Document type Journal Article
    ZDB-ID 950344-4
    ISSN 0021-2571
    ISSN 0021-2571
    DOI 10.4415/ANN_16_04_23
    Database MEDical Literature Analysis and Retrieval System OnLINE

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