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  1. Article: The Role of NOX2-Derived Reactive Oxygen Species in the Induction of Endothelin-Converting Enzyme-1 by Angiotensin II.

    Adu-Gyamfi, Michael / Goettsch, Claudia / Kamhieh-Milz, Julian / Chen, Lei / Pfefferkorn, Anna Maria / Hofmann, Anja / Brunssen, Coy / Müller, Gregor / Walther, Thomas / Ashraf, Muhammad Imtiaz / Morawietz, Henning / Witowski, Janusz / Catar, Rusan

    Antioxidants (Basel, Switzerland)

    2024  Volume 13, Issue 4

    Abstract: Endothelin-1 is a key regulator of vascular tone and blood pressure in health and disease. We have recently found that ET-1 production in human microvascular endothelial cells (HMECs) can be promoted by angiotensin II (Ang II) through a novel mechanism ... ...

    Abstract Endothelin-1 is a key regulator of vascular tone and blood pressure in health and disease. We have recently found that ET-1 production in human microvascular endothelial cells (HMECs) can be promoted by angiotensin II (Ang II) through a novel mechanism involving octamer-binding transcription factor-1 (Oct-1), NADPH oxidase-2 (NOX2), and superoxide anions. As the formation of bioactive ET-1 also depends on endothelin-converting enzyme-1 (ECE-1), we investigated the transcriptional regulation of the
    Language English
    Publishing date 2024-04-22
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2704216-9
    ISSN 2076-3921
    ISSN 2076-3921
    DOI 10.3390/antiox13040500
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: A 17-year analysis of pregnancies termination ≥14 weeks of gestation in a German level 1 perinatal center.

    Kiver, Verena I I / Altmann, Judith / Kamhieh-Milz, Julian / Weichert, Alexander

    Journal of perinatal medicine

    2019  Volume 47, Issue 8, Page(s) 847–856

    Abstract: Background When discussing termination of pregnancy (TOP) after the first trimester, the main foci are the ethics and psychological reasoning/consequences. In daily clinical practice, physicians are often faced with affected women querying the frequency ... ...

    Abstract Background When discussing termination of pregnancy (TOP) after the first trimester, the main foci are the ethics and psychological reasoning/consequences. In daily clinical practice, physicians are often faced with affected women querying the frequency of their condition(s) and decisions made by women in similar situations. The present study aimed to provide an overview of a representable number of such cases. Methods Cases of TOP beyond 14 + 0 weeks of gestation were collected between January 2000 and December 2017 in the Department of Obstetrics. Fetal and/or maternal medical causes leading to TOP were extracted and presented. Results A total of 1746 TOPs ≥14 + 0 weeks were performed. Reasons leading to TOP were subcategorized into 23 groups. The main medical diagnoses were trisomy 21 (15.5%), neurological malformations (11.0%), and cardiac and major vessel malformations (7.9%). There was no statistical difference concerning maternal age or gravida/para between the groups. The average gestational age (GA) was 21.0 weeks, varying between 16.2 and 24.2 weeks in the 23 subgroups, with an average of 23.6% per year of TOPs after viability. Conclusion An overview of the various causes of TOP and their frequency within a large dataset are shown here. According to data provided by the German Federal Statistical Office, the overall number of TOPs has declined over the past two decades; however, the number and percentage of TOPs beyond viability have increased continuously in Germany. Only early detection of maternal and fetal constitution can prevent a portion of TOP after viability.
    MeSH term(s) Abortion, Induced/statistics & numerical data ; Congenital Abnormalities/epidemiology ; Female ; Germany/epidemiology ; Humans ; Pregnancy ; Pregnancy Trimester, Second
    Language English
    Publishing date 2019-09-09
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 123512-6
    ISSN 1619-3997 ; 0300-5577 ; 0936-174X
    ISSN (online) 1619-3997
    ISSN 0300-5577 ; 0936-174X
    DOI 10.1515/jpm-2019-0072
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: MSC Therapies for COVID-19: Importance of Patient Coagulopathy, Thromboprophylaxis, Cell Product Quality and Mode of Delivery for Treatment Safety and Efficacy.

    Moll, Guido / Drzeniek, Norman / Kamhieh-Milz, Julian / Geissler, Sven / Volk, Hans-Dieter / Reinke, Petra

    Frontiers in immunology

    2020  Volume 11, Page(s) 1091

    Abstract: Numerous clinical trials of mesenchymal stromal/stem cells (MSCs) as a new treatment for coronavirus-induced disease (COVID-19) have been registered recently, most of them based on intravenous (IV) infusion. There is no approved effective therapy for ... ...

    Abstract Numerous clinical trials of mesenchymal stromal/stem cells (MSCs) as a new treatment for coronavirus-induced disease (COVID-19) have been registered recently, most of them based on intravenous (IV) infusion. There is no approved effective therapy for COVID-19, but MSC therapies have shown first promise in the treatment of acute respiratory distress syndrome (ARDS) pneumonia, inflammation, and sepsis, which are among the leading causes of mortality in COVID-19 patients. Many of the critically ill COVID-19 patients are in a hypercoagulable procoagulant state and at high risk for disseminated intravascular coagulation, thromboembolism, and thrombotic multi-organ failure, another cause of high fatality. It is not yet clear whether IV infusion is a safe and effective route of MSC delivery in COVID-19, since MSC-based products express variable levels of highly procoagulant tissue factor (TF/CD142), compromising the cells' hemocompatibility and safety profile. Of concern, IV infusions of poorly characterized MSC products with unchecked (high) TF/CD142 expression could trigger blood clotting in COVID-19 and other vulnerable patient populations and further promote the risk for thromboembolism. In contrast, well-characterized products with robust manufacturing procedures and optimized modes of clinical delivery hold great promise for ameliorating COVID-19 by exerting their beneficial immunomodulatory effects, inducing tissue repair and organ protection. While the need for MSC therapy in COVID-19 is apparent, integrating both innate and adaptive immune compatibility testing into the current guidelines for cell, tissue, and organ transplantation is critical for safe and effective therapies. It is paramount to only use well-characterized, safe MSCs even in the most urgent and experimental treatments. We here propose three steps to mitigate the risk for these vulnerable patients: (1) updated clinical guidelines for cell and tissue transplantation, (2) updated minimal criteria for characterization of cellular therapeutics, and (3) updated cell therapy routines reflecting specific patient needs.
    MeSH term(s) Administration, Intravenous ; Blood Coagulation Disorders/etiology ; COVID-19 ; Cell- and Tissue-Based Therapy/methods ; Coronavirus Infections/complications ; Coronavirus Infections/immunology ; Coronavirus Infections/therapy ; Guidelines as Topic ; Humans ; Injections, Intramuscular ; Mesenchymal Stem Cell Transplantation/adverse effects ; Mesenchymal Stem Cell Transplantation/methods ; Pandemics ; Pneumonia, Viral/complications ; Pneumonia, Viral/immunology ; Pneumonia, Viral/therapy ; Transplantation Immunology
    Keywords covid19
    Language English
    Publishing date 2020-05-19
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2020.01091
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Addressing multiple gastroenterological aspects of coronavirus disease 2019.

    Eder, Piotr / Łodyga, Michał / Dobrowolska, Agnieszka / Rydzewska, Grażyna / Kamhieh-Milz, Julian

    Polish archives of internal medicine

    2020  Volume 130, Issue 5, Page(s) 420–430

    Abstract: The outbreak of the coronavirus disease 2019 (COVID‑19) pandemic has become the biggest challenge for the whole human community since many years. It seems that the proper identification of all people infected with severe acute respiratory syndrome ... ...

    Abstract The outbreak of the coronavirus disease 2019 (COVID‑19) pandemic has become the biggest challenge for the whole human community since many years. It seems that the proper identification of all people infected with severe acute respiratory syndrome coronavirus 2 (SARS‑CoV‑2) is the best strategy to limit the transmission. However, in a significant proportion of patients, there are no clinical manifestations of the disease, and symptoms may be very mild or atypical. There is a growing body of evidence that digestive manifestations of COVID‑19 are frequently reported and may precede typical respiratory symptoms. Moreover, SARS‑CoV‑2 particles were found in the gastrointestinal epithelial cells, and viral RNA was detected in the feces of patients with COVID‑19. These data suggest that gastrointestinal symptoms in COVID‑19 are not accidental findings and they may result from direct digestive involvement. Patients with new‑onset diarrhea, abdominal pain, nausea, and vomiting without any other evident etiological factors should be tested for SARS‑CoV‑2 infection. Gastroenterologists and members of other medical specialties should also remember that the current epidemiological situation has changed diagnostic and therapeutic algorithms in the management of several gastrointestinal and liver disorders. This review article summarizes the currently available data on multiple gastroenterological aspects of COVID‑19 and provides information on practical recommendations and position statements of the most prominent associations in the field of gastroenterology, which appeared in response to the emergence of the pandemic.
    MeSH term(s) Betacoronavirus/metabolism ; Coronavirus/metabolism ; Coronavirus Infections/complications ; Coronavirus Infections/diagnosis ; Coronavirus Infections/drug therapy ; Coronavirus Infections/therapy ; Digestive System/metabolism ; Digestive System/virology ; Digestive System Diseases/virology ; Humans ; Pandemics ; Pneumonia, Viral/complications ; Pneumonia, Viral/diagnosis ; Pneumonia, Viral/therapy
    Keywords covid19
    Language English
    Publishing date 2020-05-01
    Publishing country Poland
    Document type Journal Article ; Review
    ZDB-ID 123500-x
    ISSN 1897-9483 ; 0032-3772
    ISSN (online) 1897-9483
    ISSN 0032-3772
    DOI 10.20452/pamw.15332
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Oxidative stress is predominant in female but not in male patients with autoimmune thrombocytopenia.

    Kamhieh-Milz, Julian / Salama, Abdulgabar

    Oxidative medicine and cellular longevity

    2014  Volume 2014, Page(s) 720347

    Abstract: As the involvement of oxidative stress (OS) in autoimmune thrombocytopenia (AITP) has been reported, a fast and rapid test for the reliable measurement of OS and antioxidant capacities (AOCs) might be a useful tool in extending current diagnostic ... ...

    Abstract As the involvement of oxidative stress (OS) in autoimmune thrombocytopenia (AITP) has been reported, a fast and rapid test for the reliable measurement of OS and antioxidant capacities (AOCs) might be a useful tool in extending current diagnostic possibilities. The free oxygen radical test (FORT) and free oxygen radical defence (FORD) assay (Callegari, Italy) are easy to perform and reliable, with results available within 15 minutes. Thirty-seven AITP patients and 37 matched healthy individuals were included in this study. All participants responded to a standard questionnaire provided by these assays. Female patients with AITP were observed to demonstrate significantly higher OS in comparison to female controls (P = 0.0027) and male AITP patients (P = 0.0018). The AOCs were not reduced in patients with AITP (P = 0.7648). Correlation of OS with platelet count identified a weak positive correlation (P = 0.0327, Spearman R = 0.4672). The questionnaire revealed that ITP patients in comparison to healthy controls are more stressed, feel exhausted and fatigued, and eat a healthier diet. In conclusion, OS is predominant in female but not in male patients with AITP suggesting gender-specific differences in the pathomechanisms of AITP. Identification of patients with high levels of OS might be beneficial in the management of AITP.
    MeSH term(s) Adult ; Antioxidants/metabolism ; Case-Control Studies ; Demography ; Female ; Humans ; Male ; Oxidative Stress ; Platelet Count ; Purpura, Thrombocytopenic, Idiopathic/blood ; Purpura, Thrombocytopenic, Idiopathic/pathology ; Surveys and Questionnaires
    Chemical Substances Antioxidants
    Language English
    Publishing date 2014-01-06
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2455981-7
    ISSN 1942-0994 ; 1942-0994
    ISSN (online) 1942-0994
    ISSN 1942-0994
    DOI 10.1155/2014/720347
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Editorial comment: variables affecting the presence of mesenchymal stromal cells in the peripheral blood and their relationship with apheresis product.

    Moll, Guido / Drzeniek, Norman / Kamhieh-Milz, Julian / Geissler, Sven / Reinke, Petra

    British journal of haematology

    2020  Volume 189, Issue 4, Page(s) 593–596

    MeSH term(s) Blood Component Removal ; Granulocyte Colony-Stimulating Factor ; Hematopoietic Stem Cell Mobilization ; Humans ; Mesenchymal Stem Cells
    Chemical Substances Granulocyte Colony-Stimulating Factor (143011-72-7)
    Language English
    Publishing date 2020-02-10
    Publishing country England
    Document type Editorial ; Research Support, Non-U.S. Gov't ; Comment
    ZDB-ID 80077-6
    ISSN 1365-2141 ; 0007-1048
    ISSN (online) 1365-2141
    ISSN 0007-1048
    DOI 10.1111/bjh.16389
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Ang II Promotes ET-1 Production by Regulating NOX2 Activity Through Transcription Factor Oct-1.

    Kamhieh-Milz, Julian / Chen, Lei / Goettsch, Claudia / Pfefferkorn, Anna Maria / Hofmann, Anja / Brunssen, Coy / Müller, Gregor M / Walther, Thomas / Ashraf, Muhammad Imtiaz / Moll, Guido / Morawietz, Henning / Witowski, Janusz / Catar, Rusan

    Arteriosclerosis, thrombosis, and vascular biology

    2023  Volume 43, Issue 8, Page(s) 1429–1440

    Abstract: Background: Increasing evidence suggests that superoxide ions produced by NOX (nicotinamide adenine dinucleotide phosphate oxidases) mediate vascular effects of Ang II (angiotensin II) evoked by atherogenic diets. Here, we analyzed the mechanism by ... ...

    Abstract Background: Increasing evidence suggests that superoxide ions produced by NOX (nicotinamide adenine dinucleotide phosphate oxidases) mediate vascular effects of Ang II (angiotensin II) evoked by atherogenic diets. Here, we analyzed the mechanism by which NOX2 contributes to Ang II-induced ET-1 (endothelin 1) production in human microvascular endothelial cells.
    Methods: The effects of high-fat diet were compared between WT (wild type) and
    Results: Feeding mice high-fat diet for 10 weeks increased cardiac expression and plasma levels of Ang II and ET-1 in WT but not in
    Conclusions: Ang II may promote ET-1 production in the endothelium in response to atherogenic diets through a mechanism that involves the transcription factor Oct-1 and the increased formation of superoxide anions by NOX2.
    MeSH term(s) Mice ; Animals ; Humans ; Superoxides/metabolism ; Endothelial Cells/metabolism ; Octamer Transcription Factor-1 ; NADPH Oxidases/genetics ; NADPH Oxidases/metabolism ; Angiotensin II/pharmacology ; Angiotensin II/metabolism ; Reactive Oxygen Species/metabolism
    Chemical Substances Superoxides (11062-77-4) ; Octamer Transcription Factor-1 ; NADPH Oxidases (EC 1.6.3.-) ; Angiotensin II (11128-99-7) ; Reactive Oxygen Species
    Language English
    Publishing date 2023-06-29
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1221433-4
    ISSN 1524-4636 ; 1079-5642
    ISSN (online) 1524-4636
    ISSN 1079-5642
    DOI 10.1161/ATVBAHA.122.318764
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Autoimmune activation and hypersensitization of the AT1 and ETA receptors contributes to vascular injury in scleroderma renal crisis.

    Hegner, Björn / Kretzschmar, Tobias / Zhu, Nan / Kleinau, Gunnar / Zhao, Hongfan / Kamhieh-Milz, Julian / Hilger, Julia / Schindler, Ralf / Scheerer, Patrick / Riemekasten, Gabriela / Philippe, Aurélie / Catar, Rusan

    Rheumatology (Oxford, England)

    2023  Volume 62, Issue 6, Page(s) 2284–2293

    Abstract: Objectives: Scleroderma renal crisis (SRC) is a rare vascular complication of systemic sclerosis with substantial risks for end-stage renal disease and premature death. Activating autoantibodies (Abs) targeting the angiotensin II type 1 (AT1R) and the ... ...

    Abstract Objectives: Scleroderma renal crisis (SRC) is a rare vascular complication of systemic sclerosis with substantial risks for end-stage renal disease and premature death. Activating autoantibodies (Abs) targeting the angiotensin II type 1 (AT1R) and the endothelin-1 type A receptor (ETAR) have been identified as predictors for SRC. Here, we sought to determine their pathogenic significance for acute renal vascular injury potentially triggering kidney failure and malignant hypertension.
    Methods: IgG from patients with SRC was studied for AT1R and ETAR dependent biologic effects on isolated rat renal interlobar arteries and vascular cells including contraction, signalling and mechanisms of receptor activation.
    Results: In myography experiments, patient IgG exerted vasoconstriction sensitive to inhibition of AT1R and ETAR. This relied on MEK-ERK signalling indicating functional relevance of anti-AT1R and anti-ETAR Abs. The contractile response to angiotensin II and endothelin-1 was amplified by patient IgG containing anti-AT1R and anti-ETAR Abs with substantial crosstalk between both receptors implicating autoimmune receptor hypersensitization. Co-immunoprecipitation experiments indicated heterodimerization between both receptor types which may enable the observed functional interrelation by direct structural interactions.
    Conclusion: We provide experimental evidence that agonistic Abs may contribute to SRC. This effect is presumably related to direct receptor stimulation and additional allosteric effects, at least in heterodimeric receptor constellations. Novel therapies targeted at autoimmune hyperactivation of AT1R and ETAR might improve outcomes in severe cases of SRC.
    MeSH term(s) Rats ; Animals ; Angiotensin II ; Vascular System Injuries ; Endothelin-1 ; Autoantibodies ; Receptor, Endothelin A ; Scleroderma, Localized ; Acute Kidney Injury ; Immunoglobulin G
    Chemical Substances Angiotensin II (11128-99-7) ; Endothelin-1 ; Autoantibodies ; Receptor, Endothelin A ; Immunoglobulin G
    Language English
    Publishing date 2023-06-01
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1464822-2
    ISSN 1462-0332 ; 1462-0324
    ISSN (online) 1462-0332
    ISSN 1462-0324
    DOI 10.1093/rheumatology/keac594
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: The Role of Adipose Tissue in the Pathogenesis and Therapeutic Outcomes of Inflammatory Bowel Disease.

    Eder, Piotr / Adler, Maciej / Dobrowolska, Agnieszka / Kamhieh-Milz, Julian / Witowski, Janusz

    Cells

    2019  Volume 8, Issue 6

    Abstract: Though historically regarded as an inert energy store, adipose tissue is a complex endocrine organ, which is increasingly implicated in the pathogenesis of inflammatory bowel disease (IBD). Accumulating evidence points to visceral adipose tissue and ... ...

    Abstract Though historically regarded as an inert energy store, adipose tissue is a complex endocrine organ, which is increasingly implicated in the pathogenesis of inflammatory bowel disease (IBD). Accumulating evidence points to visceral adipose tissue and specifically to its mesenteric component, or "creeping fat" as impacting on the disease course through its immunomodulatory properties. On the one hand, mesenteric fat acts as a physical barrier to inflammation and is involved in controlling host immune response to translocation of gut bacteria. On the other hand, however, there exists a strong link between visceral fat and complicated course of the disease with unfavorable therapeutic outcomes. Furthermore, "creeping fat" appears to play different roles in different IBD phenotypes, with the greatest pathogenetic contribution probably to an ileal form of Crohn's disease. In this review, we summarize and discuss the existing literature on the subject and identify high-priority areas for future research. It may be that a better understanding of the role of mesenteric fat in IBD will determine new therapeutic targets and translate into improved clinical outcomes.
    MeSH term(s) Adipokines/metabolism ; Adipose Tissue/pathology ; Animals ; Disease Progression ; Humans ; Inflammatory Bowel Diseases/etiology ; Inflammatory Bowel Diseases/therapy ; Phenotype ; Treatment Outcome
    Chemical Substances Adipokines
    Language English
    Publishing date 2019-06-21
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2661518-6
    ISSN 2073-4409
    ISSN 2073-4409
    DOI 10.3390/cells8060628
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Donating blood on a regular basis reduces blood pressure (in hypertensives): appearances are not deceiving.

    Kamhieh-Milz, Julian / Tauchmann, Yvonne / Kamhieh-Milz, Sundrela / Pruss, Axel / Doerffel, Yvonne / Michalsen, Andreas

    Transfusion

    2019  Volume 59, Issue 4, Page(s) 1405–1406

    MeSH term(s) Blood Donors ; Blood Pressure ; Humans ; Hypertension
    Language English
    Publishing date 2019-04-05
    Publishing country United States
    Document type Letter ; Comment
    ZDB-ID 208417-x
    ISSN 1537-2995 ; 0041-1132
    ISSN (online) 1537-2995
    ISSN 0041-1132
    DOI 10.1111/trf.15131
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