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  1. Article: Angiotensin-converting enzyme 2 expression is not induced by the renin-angiotensin system in the lung.

    Baba, Ryuta / Oki, Kenji / Itcho, Kiyotaka / Kobuke, Kazuhiro / Nagano, Gaku / Ohno, Haruya / Yoneda, Masayasu / Hattori, Noboru

    ERJ open research

    2020  Volume 6, Issue 4

    Abstract: ... of severe acute respiratory syndrome coronavirus 2, is not regulated by angiotensin II or renin-angiotensin system inhibitors #COVID19 ... Pulmonary expression of angiotensin-converting enzyme 2, which is a receptor ...

    Abstract Pulmonary expression of angiotensin-converting enzyme 2, which is a receptor of severe acute respiratory syndrome coronavirus 2, is not regulated by angiotensin II or renin-angiotensin system inhibitors #COVID19
    Keywords covid19
    Language English
    Publishing date 2020-10-05
    Publishing country England
    Document type Journal Article
    ZDB-ID 2827830-6
    ISSN 2312-0541
    ISSN 2312-0541
    DOI 10.1183/23120541.00402-2020
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Angiotensin-converting enzyme 2 expression is not induced by the reninangiotensin system in the lung

    Ryuta Baba / Kenji Oki / Kiyotaka Itcho / Kazuhiro Kobuke / Gaku Nagano / Haruya Ohno / Masayasu Yoneda / Noboru Hattori

    ERJ Open Research, Vol 6, Iss

    2020  Volume 4

    Keywords Medicine ; R
    Language English
    Publishing date 2020-10-01T00:00:00Z
    Publisher European Respiratory Society
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article: Angiotensin-converting enzyme 2 expression is not induced by the renin-angiotensin system in the lung

    Baba, R. / Oki, K. / Itcho, K. / Kobuke, K. / Nagano, G. / Ohno, H. / Yoneda, M. / Hattori, N.

    ERJ Open Res

    Abstract: ... of severe acute respiratory syndrome coronavirus 2, is not regulated by angiotensin II or renin-angiotensin system inhibitors #COVID19 ... Pulmonary expression of angiotensin-converting enzyme 2, which is a receptor ...

    Abstract Pulmonary expression of angiotensin-converting enzyme 2, which is a receptor of severe acute respiratory syndrome coronavirus 2, is not regulated by angiotensin II or renin-angiotensin system inhibitors #COVID19 https://bit ly/3fkopuO
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #843021
    Database COVID19

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  4. Article ; Online: Overexpression of angiotensin-converting enzyme 2 by renin-angiotensin system inhibitors. Truth or myth? A systematic review of animal studies.

    Kai, Hisashi / Kai, Mamiko / Niiyama, Hiroshi / Okina, Norihito / Sasaki, Motoki / Maeda, Takanobu / Katoh, Atsushi

    Hypertension research : official journal of the Japanese Society of Hypertension

    2021  Volume 44, Issue 8, Page(s) 955–968

    Abstract: ... cardiovascular diseases by counter regulating the renin-angiotensin system (RAS). ACE2 is also the receptor ... Angiotensin-converting enzyme 2 (ACE2) protects against organ damage in hypertension and ... than half the control level (repression) in 28 models (40 experiments). In 72 experiments, RASIs did not ...

    Abstract Angiotensin-converting enzyme 2 (ACE2) protects against organ damage in hypertension and cardiovascular diseases by counter regulating the renin-angiotensin system (RAS). ACE2 is also the receptor for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Based on the claim that RAS inhibitors (RASIs) cause ACE2 overexpression in some animal experiments, concerns have arisen that RASIs may aggravate SARS-CoV-2 infection and coronavirus disease-2019 severity in RASI-treated patients. To achieve a comprehensive review, a systematic search of MEDLINE/PubMed was conducted regarding the effects of RASIs on tissue ACE2 mRNA/protein expression in healthy animals and animal models of human diseases. We identified 88 eligible articles involving 168 experiments in the heart, kidneys, lungs, and other organs. Three of 38 experiments involving healthy animals showed ACE2 expression greater than twice that of the control (overexpression). Among 102 disease models (130 experiments), baseline ACE2 was overexpressed in 16 models (18 experiments) and less than half the control level (repression) in 28 models (40 experiments). In 72 experiments, RASIs did not change ACE2 levels from the baseline levels of disease models. RASIs caused ACE2 overexpression compared to control levels in seven experiments, some of which were unsupported by other experiments under similar conditions. In 36 experiments, RASIs reversed or prevented disease-induced ACE2 repression, yielding no or marginal changes. Therefore, ACE2 overexpression appears to be a rare rather than common consequence of RASI treatment in healthy animals and disease models. Future studies should clarify the pathophysiological significance of RASI-induced reversal or prevention of ACE2 repression in disease models.
    MeSH term(s) Angiotensin-Converting Enzyme 2/metabolism ; Angiotensin-Converting Enzyme Inhibitors/adverse effects ; Angiotensin-Converting Enzyme Inhibitors/pharmacology ; Animals ; Antihypertensive Agents/adverse effects ; Antihypertensive Agents/pharmacology ; COVID-19 ; Disease Models, Animal ; Gene Expression/drug effects ; MEDLINE ; Renin-Angiotensin System/drug effects
    Chemical Substances Angiotensin-Converting Enzyme Inhibitors ; Antihypertensive Agents ; Angiotensin-Converting Enzyme 2 (EC 3.4.17.23)
    Language English
    Publishing date 2021-03-10
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Systematic Review
    ZDB-ID 1175297-x
    ISSN 1348-4214 ; 0916-9636
    ISSN (online) 1348-4214
    ISSN 0916-9636
    DOI 10.1038/s41440-021-00641-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Impact of renin-angiotensin-aldosterone system inhibitors on COVID-19.

    Matsuzawa, Yasushi / Kimura, Kazuo / Ogawa, Hisao / Tamura, Kouichi

    Hypertension research : official journal of the Japanese Society of Hypertension

    2022  Volume 45, Issue 7, Page(s) 1147–1153

    Abstract: ... converting enzyme 2 (ACE2) not only is the entry route of severe acute respiratory syndrome coronavirus 2 ... of renin-angiotensin system (RAS) inhibitors in COVID-19 have been debated as favorable, harmful, or neutral. Angiotensin ... the expression of ACE2, which is a counter-regulator of the RAS. Several studies have investigated the beneficial ...

    Abstract Since the onset of the coronavirus disease 2019 (COVID-19) pandemic, the possible roles of renin-angiotensin system (RAS) inhibitors in COVID-19 have been debated as favorable, harmful, or neutral. Angiotensin-converting enzyme 2 (ACE2) not only is the entry route of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection but also triggers a major mechanism of COVID-19 aggravation by promoting tissue RAS dysregulation, which induces a hyperinflammatory state in several organs, leading to lung injury, hematological alterations, and immunological dysregulation. ACE inhibitors and angiotensin II type-1 receptor blockers (ARBs) inhibit the detrimental hyperactivation of the RAS by SARS-CoV-2 and increase the expression of ACE2, which is a counter-regulator of the RAS. Several studies have investigated the beneficial profile of RAS inhibitors in COVID-19; however, this finding remains unclear. Further prospective studies are warranted to confirm the role of RAS inhibitors in COVID-19. In this review, we summarize the potential effects of RAS inhibitors that have come to light thus far and review the impact of RAS inhibitors on COVID-19.
    MeSH term(s) Angiotensin Receptor Antagonists/pharmacology ; Angiotensin Receptor Antagonists/therapeutic use ; Angiotensin-Converting Enzyme 2 ; Angiotensin-Converting Enzyme Inhibitors/pharmacology ; Angiotensin-Converting Enzyme Inhibitors/therapeutic use ; COVID-19 ; Humans ; Peptidyl-Dipeptidase A/metabolism ; Renin-Angiotensin System ; SARS-CoV-2
    Chemical Substances Angiotensin Receptor Antagonists ; Angiotensin-Converting Enzyme Inhibitors ; Peptidyl-Dipeptidase A (EC 3.4.15.1) ; Angiotensin-Converting Enzyme 2 (EC 3.4.17.23)
    Language English
    Publishing date 2022-05-18
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 1175297-x
    ISSN 1348-4214 ; 0916-9636
    ISSN (online) 1348-4214
    ISSN 0916-9636
    DOI 10.1038/s41440-022-00922-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Focus on clinical practice: angiotensin-converting enzyme 2 and corona virus disease 2019: pathophysiology and clinical implications.

    Barillà, Francesco / Bassareo, Pier Paolo / Calcaterra, Giuseppe / Romeo, Francesco / Mehta, Jawahar L

    Journal of cardiovascular medicine (Hagerstown, Md.)

    2020  Volume 21, Issue 9, Page(s) 630–633

    Abstract: ... but whether an increase in ACE2 activity could facilitate the infection is not yet demonstrated. However, this aspect has ... between the spike protein of COVID-19 and the enzyme is crucial for the virus to enter the target cells ... activity and induce injury to the lungs or cardiovascular system. ...

    Abstract : ACE2 receptor has a broad expression pattern in the cellular membrane and provides a protective action against the development of cardiovascular diseases. Recently, this enzyme has become of extreme interest during the pandemic infection of COVID-19 (coronavirus disease 2019). This virus invades alveolar epithelium and cardiomyocytes using ACE2 as a transmembrane receptor. ACE2 is a counter-regulatory peptide that degrades Ang II into Ang 1-7, thereby attenuating the biological effects of the AT1 receptor. The binding between the spike protein of COVID-19 and the enzyme is crucial for the virus to enter the target cells, but whether an increase in ACE2 activity could facilitate the infection is not yet demonstrated. However, this aspect has raised many concerns about the use of ACE inhibitors or ARBs in infected patients or patients at risk of infection. It appears that cellular infection leads to a reduction in ACE2 expression and an increase in the activity of the Ang II--AT1 axis, which leads to the release of pro-inflammatory cytokines, ARDS, myocarditis, and hypercoagulability with the possibility of exacerbation of acute coronary syndrome, induction of pulmonary embolism, or appearance of disseminated intravascular coagulation. Therefore, ACE inhibitors or angiotensin receptor blocker drugs should be continued in infected patients, as their discontinuation can increase Ang II activity and induce injury to the lungs or cardiovascular system.
    MeSH term(s) Angiotensin Receptor Antagonists/pharmacology ; Angiotensin-Converting Enzyme 2 ; Angiotensin-Converting Enzyme Inhibitors/pharmacology ; Betacoronavirus/physiology ; COVID-19 ; Cardiovascular Diseases/complications ; Cardiovascular Diseases/drug therapy ; Cardiovascular Diseases/metabolism ; Coronavirus Infections/metabolism ; Coronavirus Infections/virology ; Humans ; Pandemics ; Peptidyl-Dipeptidase A/metabolism ; Pneumonia, Viral/metabolism ; Pneumonia, Viral/virology ; Renin-Angiotensin System/drug effects ; Renin-Angiotensin System/physiology ; SARS-CoV-2 ; Spike Glycoprotein, Coronavirus/metabolism ; Virus Internalization
    Chemical Substances Angiotensin Receptor Antagonists ; Angiotensin-Converting Enzyme Inhibitors ; Spike Glycoprotein, Coronavirus ; spike protein, SARS-CoV-2 ; Peptidyl-Dipeptidase A (EC 3.4.15.1) ; ACE2 protein, human (EC 3.4.17.23) ; Angiotensin-Converting Enzyme 2 (EC 3.4.17.23)
    Keywords covid19
    Language English
    Publishing date 2020-07-21
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2223461-5
    ISSN 1558-2035 ; 1558-2027
    ISSN (online) 1558-2035
    ISSN 1558-2027
    DOI 10.2459/JCM.0000000000001071
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Role and mechanism of angiotensin-converting enzyme 2 in acute lung injury in coronavirus disease 2019.

    Liu, Meng-Yuan / Zheng, Bo / Zhang, Yan / Li, Jian-Ping

    Chronic diseases and translational medicine

    2020  Volume 6, Issue 2, Page(s) 98–105

    Abstract: ... not been fully elucidated, angiotensin-converting enzyme 2 (ACE2) has been recently identified ... the renin-angiotensin-aldosterone system (RAAS) primarily by converting angiotensin II to angiotensin 1-7, which exerts a beneficial effect ... we aimed to clarify the potential role of ACE2 in SARS-CoV-2-induced acute lung injury and its underlying ...

    Abstract Coronavirus disease 2019 is a major threat to public health globally. Though its pathogenesis has not been fully elucidated, angiotensin-converting enzyme 2 (ACE2) has been recently identified as a receptor for the entry of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) into the cell. Here, we aimed to clarify the potential role of ACE2 in SARS-CoV-2-induced acute lung injury and its underlying mechanism. As a receptor for coronavirus, ACE2 mediates the entry of SARS-CoV-2 into cells in a similar way as for severe acute respiratory syndrome coronavirus (SARS-CoV). The high binding affinity of SARS-CoV-2 to ACE2 correlates with its efficient spread among humans. On the other hand, ACE2 negatively regulates the renin-angiotensin-aldosterone system (RAAS) primarily by converting angiotensin II to angiotensin 1-7, which exerts a beneficial effect on coronavirus-induced acute lung injury. Human recombinant ACE2 has been considered as a potential therapy for SARS-CoV-2 by blocking virus entry and redressing the imbalance of RAAS in SARS-CoV-2 infection. The level of ACE2 expression can be upregulated by treatment with an ACE inhibitor (ACEI) or angiotensin Ⅱ type 1 receptor blocker (ARB). To date, no evidence shows that ACEIs or ARBs increase the susceptibility and mortality of patients infected with SARS-CoV-2, and hence, it is not advisable to discontinue such drugs in patients with cardiovascular disease.
    Keywords covid19
    Language English
    Publishing date 2020-05-19
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2831148-6
    ISSN 2589-0514 ; 2589-0514
    ISSN (online) 2589-0514
    ISSN 2589-0514
    DOI 10.1016/j.cdtm.2020.05.003
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Role and mechanism of angiotensin-converting enzyme 2 in acute lung injury in coronavirus disease 2019

    Meng-Yuan Liu / Bo Zheng / Yan Zhang / Jian-Ping Li

    Chronic Diseases and Translational Medicine, Vol 6, Iss 2, Pp 98-

    2020  Volume 105

    Abstract: ... not been fully elucidated, angiotensin-converting enzyme 2 (ACE2) has been recently identified ... the renin-angiotensin-aldosterone system (RAAS) primarily by converting angiotensin II to angiotensin 1–7, which exerts a beneficial effect ... we aimed to clarify the potential role of ACE2 in SARS-CoV-2-induced acute lung injury and its underlying ...

    Abstract Coronavirus disease 2019 is a major threat to public health globally. Though its pathogenesis has not been fully elucidated, angiotensin-converting enzyme 2 (ACE2) has been recently identified as a receptor for the entry of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) into the cell. Here, we aimed to clarify the potential role of ACE2 in SARS-CoV-2-induced acute lung injury and its underlying mechanism. As a receptor for coronavirus, ACE2 mediates the entry of SARS-CoV-2 into cells in a similar way as for severe acute respiratory syndrome coronavirus (SARS-CoV). The high binding affinity of SARS-CoV-2 to ACE2 correlates with its efficient spread among humans. On the other hand, ACE2 negatively regulates the renin-angiotensin-aldosterone system (RAAS) primarily by converting angiotensin II to angiotensin 1–7, which exerts a beneficial effect on coronavirus-induced acute lung injury. Human recombinant ACE2 has been considered as a potential therapy for SARS-CoV-2 by blocking virus entry and redressing the imbalance of RAAS in SARS-CoV-2 infection. The level of ACE2 expression can be upregulated by treatment with an ACE inhibitor (ACEI) or angiotensin Ⅱ type 1 receptor blocker (ARB). To date, no evidence shows that ACEIs or ARBs increase the susceptibility and mortality of patients infected with SARS-CoV-2, and hence, it is not advisable to discontinue such drugs in patients with cardiovascular disease.
    Keywords Severe acute respiratory syndrome coronavirus 2 ; Angiotensin-converting enzyme 2 ; Acute lung injury ; Medicine (General) ; R5-920 ; covid19
    Subject code 610
    Language English
    Publishing date 2020-06-01T00:00:00Z
    Publisher KeAi Communications Co., Ltd.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article: Role and mechanism of angiotensin-converting enzyme 2 in acute lung injury in coronavirus disease 2019

    Liu, Meng-Yuan / Zheng, Bo / Zhang, Yan / Li, Jian-Ping

    Chronic Dis. Transl. Med.

    Abstract: ... not been fully elucidated, angiotensin-converting enzyme 2 (ACE2) has been recently identified ... the renin-angiotensin-aldosterone system (RAAS) primarily by converting angiotensin II to angiotensin 1–7, which exerts a beneficial effect ... we aimed to clarify the potential role of ACE2 in SARS-CoV-2-induced acute lung injury and its underlying ...

    Abstract Coronavirus disease 2019 is a major threat to public health globally. Though its pathogenesis has not been fully elucidated, angiotensin-converting enzyme 2 (ACE2) has been recently identified as a receptor for the entry of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) into the cell. Here, we aimed to clarify the potential role of ACE2 in SARS-CoV-2-induced acute lung injury and its underlying mechanism. As a receptor for coronavirus, ACE2 mediates the entry of SARS-CoV-2 into cells in a similar way as for severe acute respiratory syndrome coronavirus (SARS-CoV). The high binding affinity of SARS-CoV-2 to ACE2 correlates with its efficient spread among humans. On the other hand, ACE2 negatively regulates the renin-angiotensin-aldosterone system (RAAS) primarily by converting angiotensin II to angiotensin 1–7, which exerts a beneficial effect on coronavirus-induced acute lung injury. Human recombinant ACE2 has been considered as a potential therapy for SARS-CoV-2 by blocking virus entry and redressing the imbalance of RAAS in SARS-CoV-2 infection. The level of ACE2 expression can be upregulated by treatment with an ACE inhibitor (ACEI) or angiotensin Ⅱ type 1 receptor blocker (ARB). To date, no evidence shows that ACEIs or ARBs increase the susceptibility and mortality of patients infected with SARS-CoV-2, and hence, it is not advisable to discontinue such drugs in patients with cardiovascular disease.
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #306057
    Database COVID19

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  10. Article ; Online: Midkine regulation of the renin-angiotensin system.

    Kadomatsu, Kenji

    Current hypertension reports

    2010  Volume 12, Issue 2, Page(s) 74–79

    Abstract: ... its significance in the renin-angiotensin system and the kidney-lung interaction. ... involves the renin-angiotensin system. We have recently reported that the growth factor midkine is a novel ... regulator of the renin-angiotensin system. Midkine is a heparin-binding growth factor so far implicated ...

    Abstract Hypertension and chronic kidney disease are often associated. The pathogenesis of these diseases involves the renin-angiotensin system. We have recently reported that the growth factor midkine is a novel regulator of the renin-angiotensin system. Midkine is a heparin-binding growth factor so far implicated in neuronal differentiation, neuroprotection, cardioprotection, inflammation, and cancer development. In a mouse model of chronic kidney disease induced by 5/6 nephrectomy, midkine is produced in the lung and in turn upregulates angiotensin-converting enzyme expression. Hypertension associated with 5/6 nephrectomy is not observed in midkine-deficient mice. Conversely, supplemental administration of midkine to the deficient mice induces hypertension. This review describes the molecular characteristics of midkine and its significance in the renin-angiotensin system and the kidney-lung interaction.
    MeSH term(s) Acetylcholinesterase/biosynthesis ; Acute Kidney Injury ; Aldosterone ; Angiotensin II ; Animals ; Central Nervous System ; Cytokines/physiology ; Fibroblast Growth Factors ; Humans ; Hypertension/pathology ; Inflammation/pathology ; Kidney Failure, Chronic/pathology ; Lung ; Mice ; Midkine ; Receptors, Fibroblast Growth Factor ; Renin ; Renin-Angiotensin System/physiology ; Risk Factors
    Chemical Substances Cytokines ; Receptors, Fibroblast Growth Factor ; Angiotensin II (11128-99-7) ; Midkine (137497-38-2) ; Aldosterone (4964P6T9RB) ; Fibroblast Growth Factors (62031-54-3) ; Acetylcholinesterase (EC 3.1.1.7) ; Renin (EC 3.4.23.15)
    Language English
    Publishing date 2010-04-28
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 2057367-4
    ISSN 1534-3111 ; 1522-6417
    ISSN (online) 1534-3111
    ISSN 1522-6417
    DOI 10.1007/s11906-010-0092-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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