1
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Mikosiński J, Mikosiński P, Kwapisz A, Katarzynska J, Gebicki J. Conclusions from an Observational Study of Patients with Vascular Diseases Using the FMSF Technique. Vasc Health Risk Manag 2023; 19:755-764. [PMID: 38025516 PMCID: PMC10676726 DOI: 10.2147/vhrm.s442344] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 11/17/2023] [Indexed: 12/01/2023] Open
Abstract
Purpose There is great demand for a diagnostic tool for non-invasive assessment of vascular circulation and metabolic regulation. Assessing both these functions is crucial, as each can have a distinct response to hypoxia. Patients and Methods The Flow Mediated Skin Fluorescence (FMSF) technique appears uniquely suitable for analysis of vascular circulation and metabolic regulation. In this observational study, the FMSF technique was used to diagnose patients with various vascular diseases. The study group consisted of 482 patients (264 females and 218 males) between the ages of 40-94 years with various vascular problems (arterial hypertension, cardiovascular disease, diabetes, hypercholesterolemia, and chronic venous disease). Results Three major FMSF parameters were used: Ischemic Response (IRmax), Hyperemic Response (HRmax), and Reactive Hyperemia Response (RHR). All three parameters were found to decrease with age with a distinguishable kinetics. The IRmax parameter was used for characterization of metabolic reaction to transient hypoxia and HRmax was used for characterization of macrocirculatory function. Both were sex-dependent. Conclusion Females were metabolically less adaptive to transient hypoxia than males. However, macrocirculatory function was better in females than among males. Microcirculatory function decreases gradually with age, while macrocirculatory function decreases much more slowly with age, with a tendency to stabilize after 70 years of age.
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Affiliation(s)
| | | | | | | | - Jerzy Gebicki
- Angionica Ltd, Lodz, Poland
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, Poland
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2
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Gebicki J, Filipiak T, Marcinek A, Wozniacka A. Assessment of NADH/NAD + Redox Imbalance in Psoriatic Lesions Using the FMSF Technique: Therapeutic Aspects. Sensors (Basel) 2023; 23:8718. [PMID: 37960418 PMCID: PMC10648007 DOI: 10.3390/s23218718] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 10/07/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023]
Abstract
Mitochondrial dysfunction has been linked to psoriasis, and it may be an important underlying factor contributing to this disease. However, a precise methodology for assessing mitochondrial dysfunction has yet to be developed. One promising approach is to measure NADH autofluorescence from the affected skin areas. In this study, we show that Flow-Mediated Skin Fluorescence (FMSF) can be used for the non-invasive assessment of mitochondrial dysfunction in psoriasis. The fluorescence level at baseline and the half-time of ischemic growth (t1/2) derived from the FMSF traces can be used for the non-invasive assessment of NADH/NAD+ redox imbalance in psoriatic lesions compared to unaffected skin. These results are supported by an analysis of the key FMSF parameters: Reactive Hyperemia Response (RHR) and Hypoxia Sensitivity (HS). This method not only contributes to understanding the biochemical processes involved in the etiopathogenesis of psoriasis, but it also provides a basis for identifying new drug targets and improving the treatment process.
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Affiliation(s)
- Jerzy Gebicki
- Institute of Applied Radiation Chemistry, Lodz University of Technology, 90-924 Lodz, Poland;
- Angionica Ltd., 90-924 Lodz, Poland;
| | | | - Andrzej Marcinek
- Institute of Applied Radiation Chemistry, Lodz University of Technology, 90-924 Lodz, Poland;
- Angionica Ltd., 90-924 Lodz, Poland;
| | - Anna Wozniacka
- Department of Dermatology and Venereology, Medical University of Lodz, 90-419 Lodz, Poland;
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3
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Gebicki J, Katarzynska J, Marcinek A. Effect of Psychological Stress on Microcirculation Oscillations: Diagnostic Aspects. Vasc Health Risk Manag 2023; 19:79-82. [PMID: 36798618 PMCID: PMC9926981 DOI: 10.2147/vhrm.s399082] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 02/03/2023] [Indexed: 02/12/2023] Open
Affiliation(s)
- Jerzy Gebicki
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, Poland,Angionica Ltd, Lodz, Poland,Correspondence: Jerzy Gebicki, Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, 90-924, Poland, Tel +48 42 631 31 71, Email ;
| | | | - Andrzej Marcinek
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, Poland,Angionica Ltd, Lodz, Poland
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4
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Chudzik M, Cender A, Mordaka R, Zielinski J, Katarzynska J, Marcinek A, Gebicki J. Chronic Fatigue Associated with Post-COVID Syndrome versus Transient Fatigue Caused by High-Intensity Exercise: Are They Comparable in Terms of Vascular Effects? Vasc Health Risk Manag 2022; 18:711-719. [PMID: 36097586 PMCID: PMC9464031 DOI: 10.2147/vhrm.s371468] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 08/27/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose The pathophysiology of chronic fatigue associated with post-COVID syndrome is not well recognized. It is assumed that this condition is partly due to vascular dysfunction developed during an acute phase of infection. There is great demand for a diagnostic tool that is able to clinically assess post-COVID syndrome and monitor the rehabilitation process. Patients and Methods The Flow Mediated Skin Fluorescence (FMSF) technique appears uniquely suitable for the analysis of basal microcirculatory oscillations and reactive hyperemia induced by transient ischemia. The FMSF was used to measure vascular circulation in 45 patients with post-COVID syndrome. The results were compared with those for a group of 26 amateur runners before and after high-intensity exercise as well as for a control group of 32 healthy age-matched individuals. Results Based on the observed changes in the NOI (Normoxia Oscillatory Index) and RHR (Reactive Hyperemia Response) parameters measured with the FMSF technique, it was found that chronic fatigue associated with post-COVID syndrome is comparable with transient fatigue caused by high-intensity exercise in terms of vascular effects, which are associated with vascular stress in the macrocirculation and microcirculation. Acute and chronic fatigue symptomatology shared similarly altered changes in the NOI and RHR parameters and both can be linked to calcium homeostasis modification. Conclusion The NOI and RHR parameters measured with the FMSF technique can be used for non-invasive clinical assessment of post-COVID syndrome as well as for monitoring the rehabilitation process.
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Affiliation(s)
- Michal Chudzik
- Medical Center, Saint Family Hospital, Lodz, Poland.,Department of Internal Medicine and Geronto-Cardiology, Medical Centre for Postgraduate Education, Warsaw, Poland
| | - Anna Cender
- Medical Center, Saint Family Hospital, Lodz, Poland
| | | | - Jacek Zielinski
- Department of Athletics, Strength and Conditioning, Poznan University of Physical Education, Poznan, Poland
| | | | - Andrzej Marcinek
- Angionica Ltd., Lodz, Poland.,Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, Poland
| | - Jerzy Gebicki
- Angionica Ltd., Lodz, Poland.,Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, Poland
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5
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Katarzynska J, Zielinski J, Marcinek A, Gebicki J. New Approach to Non-Invasive Assessment of Vascular Circulation Based on the Response to Transient Ischemia. Vasc Health Risk Manag 2022; 18:113-116. [PMID: 35283632 PMCID: PMC8910465 DOI: 10.2147/vhrm.s358983] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 02/26/2022] [Indexed: 01/27/2023] Open
Affiliation(s)
| | - Jacek Zielinski
- Department of Athletics, Strength and Conditioning, Poznan University of Physical Education, Poznan, Poland
| | - Andrzej Marcinek
- Angionica Ltd., Lodz, Poland
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, Poland
| | - Jerzy Gebicki
- Angionica Ltd., Lodz, Poland
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, Poland
- Correspondence: Jerzy Gebicki; Andrzej Marcinek, Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, 90-924, Poland, Tel +48 42 631 31 71; +48 42 631 30 96, Email ;
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6
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Los-Stegienta A, Katarzynska J, Borkowska A, Marcinek A, Cypryk K, Gebicki J. Differentiation of Diabetic Foot Ulcers Based on Stimulation of Myogenic Oscillations by Transient Ischemia. Vasc Health Risk Manag 2021; 17:145-152. [PMID: 33907408 PMCID: PMC8064676 DOI: 10.2147/vhrm.s307366] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 04/02/2021] [Indexed: 12/13/2022] Open
Abstract
PURPOSE Diabetic foot ulceration is a chronic complication characterized by impaired wound healing. There is a great demand for a diagnostic tool that is able to monitor and predict wound healing. PATIENTS AND METHODS Oscillations in the microcirculation, known as flowmotion, can be monitored very distinctly and precisely using the Flow Mediated Skin Fluorescence (FMSF) technique. The flowmotion response to hypoxia was measured quantitatively in 42 patients with diabetic foot ulcers. RESULTS The flowmotion response to hypoxia parameters FM(R) and HS were used to differentiate the diabetic foot ulcers and correlate them with clinical status. In some cases, FMSF measurements were continued over the period of a year in order to monitor disease progress. The clinical status of the quarter of patients with the highest HS values (group A, HS = 50.2±18.3) was compared to the quarter with the lowest HS values (group B, HS = 4.3±1.7). The patients in the group B were identified as having low prognosis for healing and were characterized by higher incidences of hypertension, hyperlipidemia, prevalent CVD, neuropathy and nephropathy. CONCLUSION Impaired flowmotion responses to hypoxia induced by transient ischemia can be used for differentiation of diabetic foot ulcers and identification of cases with low prognosis for healing.
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Affiliation(s)
| | | | - Anna Borkowska
- Department of Internal Diseases and Diabetology, Medical University of Lodz, Lodz, Poland
| | - Andrzej Marcinek
- Angionica Ltd., Lodz, Poland
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, Poland
| | - Katarzyna Cypryk
- Department of Internal Diseases and Diabetology, Medical University of Lodz, Lodz, Poland
| | - Jerzy Gebicki
- Angionica Ltd., Lodz, Poland
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, Poland
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7
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Cheda A, Nowosielska EM, Gebicki J, Marcinek A, Chlopicki S, Janiak MK. A derivative of vitamin B 3 applied several days after exposure reduces lethality of severely irradiated mice. Sci Rep 2021; 11:7922. [PMID: 33846380 PMCID: PMC8041812 DOI: 10.1038/s41598-021-86870-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 03/22/2021] [Indexed: 12/02/2022] Open
Abstract
Most, if not all, of the hitherto tested substances exert more or less pronounced pro-survival effects when applied before or immediately after the exposure to high doses of ionizing radiation. In the present study we demonstrate for the first time that 1-methyl nicotinamide (MNA), a derivative of vitamin B3, significantly (1.6 to 1.9 times) prolonged survival of BALB/c mice irradiated at LD30/30 (6.5 Gy), LD50/30 (7.0 Gy) or LD80/30 (7.5 Gy) of γ-rays when the MNA administration started as late as 7 days post irradiation. A slightly less efficient and only after the highest dose (7.5 Gy) of γ-rays was another vitamin B3 derivative, 1-methyl-3-acetylpyridine (1,3-MAP) (1.4-fold prolonged survival). These pro-survival effects did not seem to be mediated by stimulation of haematopoiesis, but might be related to anti-inflammatory and/or anti-thrombotic properties of the vitamin B3 derivatives. Our results show that MNA may represent a prototype of a radioremedial agent capable of mitigating the severity and/or progression of radiation-induced injuries when applied several hours or days after exposure to high doses of ionizing radiation.
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Affiliation(s)
- Aneta Cheda
- Department of Radiobiology and Radiation Protection, Military Institute of Hygiene and Epidemiology, 4 Kozielska St., 01-163, Warsaw, Poland.
| | - Ewa M Nowosielska
- Department of Radiobiology and Radiation Protection, Military Institute of Hygiene and Epidemiology, 4 Kozielska St., 01-163, Warsaw, Poland
| | - Jerzy Gebicki
- Institute of Applied Radiation Chemistry, Lodz University of Technology, 15 Wroblewskiego St., 93-590, Lodz, Poland
| | - Andrzej Marcinek
- Institute of Applied Radiation Chemistry, Lodz University of Technology, 15 Wroblewskiego St., 93-590, Lodz, Poland
| | - Stefan Chlopicki
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego St., 30-348, Kraków, Poland
- Chair of Pharmacology, Jagiellonian University Medical College, Jagiellonian University, 16 Grzegorzecka St., 31-531, Kraków, Poland
| | - Marek K Janiak
- Department of Radiobiology and Radiation Protection, Military Institute of Hygiene and Epidemiology, 4 Kozielska St., 01-163, Warsaw, Poland
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8
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Gebicki J, Marcinek A, Zielinski J. Assessment of Microcirculatory Status Based on Stimulation of Myogenic Oscillations by Transient Ischemia: From Health to Disease. Vasc Health Risk Manag 2021; 17:33-36. [PMID: 33603387 PMCID: PMC7882797 DOI: 10.2147/vhrm.s292087] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 01/16/2021] [Indexed: 12/17/2022] Open
Affiliation(s)
- Jerzy Gebicki
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, Poland.,Angionica Ltd, Lodz, Poland
| | - Andrzej Marcinek
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, Poland.,Angionica Ltd, Lodz, Poland
| | - Jacek Zielinski
- Department of Athletics, Strength and Conditioning, Poznan University of Physical Education, Poznan, Poland
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9
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Gebicki J, Katarzynska J, Marcinek A. Can efficient stimulation of myogenic microcirculatory oscillations by transient ischemia predict low incidence of COVID-19 infection? Respir Physiol Neurobiol 2021; 286:103618. [PMID: 33460776 PMCID: PMC7832201 DOI: 10.1016/j.resp.2021.103618] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 12/31/2020] [Accepted: 01/13/2021] [Indexed: 11/06/2022]
Affiliation(s)
- Jerzy Gebicki
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland; Angionica Ltd., Zeromskiego 116, 90-924 Lodz Poland.
| | | | - Andrzej Marcinek
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland; Angionica Ltd., Zeromskiego 116, 90-924 Lodz Poland
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10
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Gebicki J, Wieczorkowska M. COVID-19 infection: mitohormetic concept of immune response. Cell Death Discov 2020; 6:60. [PMID: 32690996 PMCID: PMC7359918 DOI: 10.1038/s41420-020-00297-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/13/2020] [Accepted: 07/03/2020] [Indexed: 01/15/2023] Open
Affiliation(s)
- Jerzy Gebicki
- Institute of Applied Radiation Chemistry, Lodz University of Technology, 90-924 Lodz, Poland
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11
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Katarzynska J, Cholewinski T, Sieron L, Marcinek A, Gebicki J. Flowmotion Monitored by Flow Mediated Skin Fluorescence (FMSF): A Tool for Characterization of Microcirculatory Status. Front Physiol 2020; 11:702. [PMID: 32636761 PMCID: PMC7317028 DOI: 10.3389/fphys.2020.00702] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 02/27/2020] [Accepted: 05/28/2020] [Indexed: 01/20/2023] Open
Abstract
Oscillations in the microcirculation, known as flowmotion, are a well-recognized characteristic of cutaneous blood flow. Since flowmotion reflects the microcirculatory status of the vascular system, which is very often impaired in many diseases and disorders, a quantitative assessment of skin flowmotion could potentially be used to screen for early symptoms of such conditions. In this study, skin flowmotion was monitored using the Flow Mediated Skin Fluorescence (FMSF) technique. The flowmotion parameter was used for quantitative assessment of basal flowmotion both at rest (FM) and during reperfusion [FM(R)] following the post-occlusive reactive hyperemia (PORH). The study population was composed of healthy volunteers between the ages of 30 and 72 (n = 75). The FM parameter showed an inverse dependence relative to age, while the FM(R) parameter was inversely correlated to blood pressure. The FM(R) parameter reflects the strong effect of hypoxia on flowmotion, which is mainly due to increased myogenic activity in the vessels. The FMSF technique appears to be uniquely suited for the analysis of basal flowmotion and the hypoxia response, and may be used for the characterization of microcirculatory status.
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Affiliation(s)
| | | | | | - Andrzej Marcinek
- Angionica Ltd., Lodz, Poland
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, Poland
| | - Jerzy Gebicki
- Angionica Ltd., Lodz, Poland
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, Poland
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12
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Gebicki J, Katarzynska J, Marcinek A. Can the microcirculatory response to hypoxia be a prognostic factor for Covid-19? Respir Physiol Neurobiol 2020; 280:103478. [PMID: 32540481 PMCID: PMC7291997 DOI: 10.1016/j.resp.2020.103478] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 06/09/2020] [Indexed: 11/10/2022]
Affiliation(s)
- Jerzy Gebicki
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924, Lodz, Poland; Angionica Ltd., Zeromskiego 116, 90-924, Lodz, Poland.
| | | | - Andrzej Marcinek
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924, Lodz, Poland; Angionica Ltd., Zeromskiego 116, 90-924, Lodz Poland
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13
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Katarzynska J, Borkowska A, Los A, Marcinek A, Cypryk K, Gebicki J. Flow-Mediated Skin Fluorescence (FMSF) Technique for Studying Vascular Complications in Type 2 Diabetes. J Diabetes Sci Technol 2020; 14:693-694. [PMID: 31855069 PMCID: PMC7576949 DOI: 10.1177/1932296819895544] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
| | - Anna Borkowska
- Department of Internal Diseases and Diabetology, Medical University of Lodz, Poland
| | - Agnieszka Los
- Department of Internal Diseases and Diabetology, Medical University of Lodz, Poland
| | - Andrzej Marcinek
- Angionica Ltd., Lodz, Poland
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Poland
| | - Katarzyna Cypryk
- Department of Internal Diseases and Diabetology, Medical University of Lodz, Poland
| | - Jerzy Gebicki
- Angionica Ltd., Lodz, Poland
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Poland
- Jerzy Gebicki, PhD, Institute of Applied Radiation Chemistry, Lodz University of Technology, Zeromskiego 116, Lodz 90-924, Poland. Emails: ;
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14
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Katarzynska J, Borkowska A, Czajkowski P, Los A, Szczerbinski L, Milewska-Kranc A, Marcinek A, Kretowski A, Cypryk K, Gebicki J. Flow Mediated Skin Fluorescence technique reveals remarkable effect of age on microcirculation and metabolic regulation in type 1 diabetes. Microvasc Res 2019; 124:19-24. [PMID: 30807771 DOI: 10.1016/j.mvr.2019.02.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 02/22/2019] [Accepted: 02/22/2019] [Indexed: 12/20/2022]
Abstract
STUDY DESCRIPTION Flow Mediated Skin Fluorescence (FMSF) is a novel technique for non-invasive evaluation of the microcirculation and metabolic regulation. This study describes the diagnostic potential of FMSF for type 1 diabetes (DM1). STUDY POPULATION All study participants, in both the control (n = 31) and DM1 (n = 40) groups, were between the ages of 30-49 y. The patients in the DM1 group had all been suffering from diabetes for at least 10 y. RESULTS The parameters HRindex, HRmax and MR inversely correlate with age and BMI. An unidentified compensatory effect was observed among the younger members of the DM1 group. The majority of DM1 patients with HRindex < 8% showed signs of dysfunctional metabolic regulation. CONCLUSION FMSF appears to be an extremely useful technique for monitoring diabetic patients over time, enabling early diagnosis of potentially dysfunctional microcirculation and metabolic regulation.
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Affiliation(s)
| | - Anna Borkowska
- Department of Internal Diseases and Diabetology, Medical University of Lodz, Lodz, Poland
| | | | - Agnieszka Los
- Department of Internal Diseases and Diabetology, Medical University of Lodz, Lodz, Poland
| | - Lukasz Szczerbinski
- Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Bialystok, Bialystok, Poland
| | | | - Andrzej Marcinek
- Angionica Ltd., Lodz, Poland; Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, Poland
| | - Adam Kretowski
- Clinical Research Centre, Medical University of Bialystok, Bialystok, Poland; Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Bialystok, Bialystok, Poland
| | - Katarzyna Cypryk
- Department of Internal Diseases and Diabetology, Medical University of Lodz, Lodz, Poland
| | - Jerzy Gebicki
- Angionica Ltd., Lodz, Poland; Institute of Applied Radiation Chemistry, Lodz University of Technology, Lodz, Poland.
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15
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Rechcinski T, Cieslik-Guerra U, Siedlecki P, Uznanska-Loch B, Wierzbowska-Drabik K, Szymczyk E, Wejner-Mik P, Kurpesa M, Piotrowski L, Marcinek A, Gebicki J, Kasprzak JD. P4459Flow-mediated skin fluorescence - a novel screening tool for cardiovascular risk. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4459] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- T Rechcinski
- Medical University of Lodz, Department of Cardiology, Lodz, Poland
| | - U Cieslik-Guerra
- Bieganski Hospital, Department of Cardiac Rehabilitation, Lodz, Poland
| | - P Siedlecki
- Medical University of Lodz, Department of Cardiology, Lodz, Poland
| | - B Uznanska-Loch
- Medical University of Lodz, Department of Cardiology, Lodz, Poland
| | | | - E Szymczyk
- Medical University of Lodz, Department of Cardiology, Lodz, Poland
| | - P Wejner-Mik
- Medical University of Lodz, Department of Cardiology, Lodz, Poland
| | - M Kurpesa
- Medical University of Lodz, Department of Cardiology, Lodz, Poland
| | | | | | | | - J D Kasprzak
- Medical University of Lodz, Department of Cardiology, Lodz, Poland
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16
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Zabielska MA, Adamus J, Kowalski R, Gebicki J, Slominska EM, Khalpey Z, Smolenski RT. Cardioprotective effect of N-methylnicotinamide salt of pyruvate in experimental model of cardiac hypoxia. Pharmacol Rep 2018; 70:378-384. [PMID: 29477947 DOI: 10.1016/j.pharep.2017.09.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 09/22/2017] [Accepted: 09/29/2017] [Indexed: 11/17/2022]
Abstract
BACKGROUND Pyruvate improves contractility of normal, hypoxic, and post-ischemic myocardium. However, sodium overload is a major problem with its therapeutic application if sodium pyruvate is used. Development of alternative forms such as N-1-methylnicotinamide (MNA) pyruvate may help to overcome this problem. The aim of the study was to investigate the effect of MNA pyruvate in a murine model of cardiac ischemia. METHODS Seven month old male ApoE-/-LDLr-/- mice that develop myocardial infarction when exposed to hypoxic stress, were used in this study. Hypoxia (8% O2 in inspired air) was maintained for 8min and was followed by reoxygenation (21% O2 in inspired air). Four groups of mice were treated 10min before the hypoxic event by intravenous injection of MNA, MNA pyruvate, sodium pyruvate, and saline as control. The myocardial ischemia and damage was recorded by ECG. Four hours following the hypoxic episode serum troponin T and creatine kinase activity were measured. RESULTS Significant hypernatremia was found in the sodium pyruvate group. During hypoxia, control and MNA group developed profound STU depressions on ECG while no changes were observed in MNA pyruvate and sodium pyruvate group. Creatine kinase activity and troponin T content in the mice plasma were significantly higher in the control and MNA group as compared to the MNA pyruvate and sodium pyruvate group. CONCLUSIONS This study demonstrated that administration of MNA pyruvate prior to a hypoxia-induced cardiac event was cardioprotective. This intervention did not cause hypernatremia in contrast to sodium pyruvate.
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Affiliation(s)
- Magdalena A Zabielska
- Department of Biochemistry, Medical University of Gdansk, Gdańsk, Poland; Department of Physiology, Medical University of Gdansk, Gdańsk, Poland
| | - Jan Adamus
- Institute of Applied Radiation Chemistry, Technical University of Lodz, Łódź, Poland
| | - Robert Kowalski
- Department of Therapy Monitoring and Pharmacogenetics, Medical University of Gdansk, Gdańsk, Poland
| | - Jerzy Gebicki
- Institute of Applied Radiation Chemistry, Technical University of Lodz, Łódź, Poland
| | - Ewa M Slominska
- Department of Biochemistry, Medical University of Gdansk, Gdańsk, Poland
| | - Zain Khalpey
- Department of Surgery, Division of Cardiothoracic Surgery, University of Arizona, College of Medicine, Tuscon, USA
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Denslow A, Switalska M, Nowak M, Maciejewska M, Chlopicki S, Marcinek A, Gebicki J, Wietrzyk J. The effects of 1,4-dimethylpyridine in metastatic prostate cancer in mice. BMC Cancer 2017; 17:177. [PMID: 28270133 PMCID: PMC5341170 DOI: 10.1186/s12885-017-3161-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 03/01/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND We previously showed that 1-methylnicotinamide (1-MNA) and its analog 1,4-dimethylpyridine (1,4-DMP) could inhibit the formation of lung metastases and enhance the efficacy of cyclophosphamide-based chemotherapy in the model of spontaneously metastasizing 4T1 mouse mammary gland tumors. In the present study, we aimed to investigate whether the previously observed activity of pyridine compounds pertains also to the prevention and the treatment of metastatic prostate tumors, in a combined chemotherapy with docetaxel. METHODS Cancer-preventing activity of 1,4-DMP was studied in the model of prostate tumors spontaneously arising in C57BL/6-Tg (TRAMP)8247Ng/J (TRAMP) mice. The efficacy of the combined chemotherapy, comprising simultaneous use of 1,4-DMP and docetaxel, was evaluated in the orthotopic mouse model of human PC-3M-luc2 prostate cancer. The toxicity of the applied treatment was also determined. RESULTS The development of prostate tumors in TRAMP mice remained unaffected after administration of 1,4-DMP. Similarly, no effect of 1,4-DMP was found on the growth of orthotopically transplanted PC-3M-luc2 tumors. However, when 1,4-DMP was administered along with docetaxel, it enhanced the anticancer activity of the chemotherapy. As a result, in PC-3M-luc2-bearing mice statistically significant inhibition of the tumor growth and lower metastases incidence were observed. The decreased metastatic yield is probably related to the diminished platelet activity observed in mice treated with combined therapeutic regimen. Finally, the combined treatment exhibited lowered side effects accompanying docetaxel administration. CONCLUSIONS Results presented herein confirm previously published data on the anticancer activity of pyridine compounds and demonstrate that 1,4-DMP may be beneficially implemented into chemotherapy utilizing various cytotoxic agents, directed against multiple metastatic tumor types.
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Affiliation(s)
- Agnieszka Denslow
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, Wroclaw, 53-114 Poland
| | - Marta Switalska
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, Wroclaw, 53-114 Poland
| | - Marcin Nowak
- Wroclaw University of Environmental and Life Sciences, Norwida 31, Wroclaw, 50-375 Poland
| | - Magdalena Maciejewska
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, Wroclaw, 53-114 Poland
| | - Stefan Chlopicki
- Chair of Pharmacology, Jagiellonian University, Medical College, Grzegorzecka 16, Krakow, 31-531 Poland
- Jagiellonian Center for Experimental Therapeutics (JCET), Jagiellonian University, Bobrzynskiego 14, Krakow, 30-348 Poland
| | - Andrzej Marcinek
- Lodz University of Technology, Zeromskiego 116, Lodz, 90-924 Poland
| | - Jerzy Gebicki
- Lodz University of Technology, Zeromskiego 116, Lodz, 90-924 Poland
| | - Joanna Wietrzyk
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, Wroclaw, 53-114 Poland
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Blazejczyk A, Switalska M, Chlopicki S, Marcinek A, Gebicki J, Nowak M, Nasulewicz-Goldeman A, Wietrzyk J. 1-methylnicotinamide and its structural analog 1,4-dimethylpyridine for the prevention of cancer metastasis. J Exp Clin Cancer Res 2016; 35:110. [PMID: 27412454 PMCID: PMC4944260 DOI: 10.1186/s13046-016-0389-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [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: 04/26/2016] [Accepted: 06/28/2016] [Indexed: 12/16/2022]
Abstract
Background 1-methylnicotinamide (1-MNA), an endogenous metabolite of nicotinamide, has recently gained interest due to its anti-inflammatory and anti-thrombotic activities linked to the COX-2/PGI2 pathway. Given the previously reported anti-metastatic activity of prostacyclin (PGI2), we aimed to assess the effects of 1-MNA and its structurally related analog, 1,4-dimethylpyridine (1,4-DMP), in the prevention of cancer metastasis. Methods All the studies on the anti-tumor and anti-metastatic activity of 1-MNA and 1,4-DMP were conducted using the model of murine mammary gland cancer (4T1) transplanted either orthotopically or intravenously into female BALB/c mouse. Additionally, the effect of the investigated molecules on cancer cell-induced angiogenesis was estimated using the matrigel plug assay utilizing 4T1 cells as a source of pro-angiogenic factors. Results Neither 1-MNA nor 1,4-DMP, when given in a monotherapy of metastatic cancer, influenced the growth of 4T1 primary tumors transplanted orthotopically; however, both compounds tended to inhibit 4T1 metastases formation in lungs of mice that were orthotopically or intravenously inoculated with 4T1 or 4T1-luc2-tdTomato cells, respectively. Additionally, while 1-MNA enhanced tumor vasculature formation and markedly increased PGI2 generation, 1,4-DMP did not have such an effect. The anti-metastatic activity of 1-MNA and 1,4-DMP was further confirmed when both agents were applied with a cytostatic drug in a combined treatment of 4T1 murine mammary gland cancer what resulted in up to 80 % diminution of lung metastases formation. Conclusions The results of the studies presented below indicate that 1-MNA and its structural analog 1,4-DMP prevent metastasis and might be beneficially implemented into the treatment of metastatic breast cancer to ensure a comprehensive strategy of metastasis control. Electronic supplementary material The online version of this article (doi:10.1186/s13046-016-0389-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Agnieszka Blazejczyk
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114, Wroclaw, Poland
| | - Marta Switalska
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114, Wroclaw, Poland
| | - Stefan Chlopicki
- Chair of Pharmacology, Jagiellonian University, Medical College, Grzegórzecka 16, 31-531, Krakow, Poland.,Jagiellonian Center for Experimental Therapeutics (JCET), Jagiellonian University, Bobrzynskiego 14, 30-348, Krakow, Poland
| | - Andrzej Marcinek
- Lodz University of Technology, Zeromskiego 116, 90-924, Lodz, Poland
| | - Jerzy Gebicki
- Lodz University of Technology, Zeromskiego 116, 90-924, Lodz, Poland
| | - Marcin Nowak
- Wroclaw University of Environmental and Life Sciences, Norwida 31, 50-375, Wroclaw, Poland
| | - Anna Nasulewicz-Goldeman
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114, Wroclaw, Poland
| | - Joanna Wietrzyk
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114, Wroclaw, Poland.
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Piotrowski L, Urbaniak M, Jedrzejczak B, Marcinek A, Gebicki J. Note: Flow mediated skin fluorescence--A novel technique for evaluation of cutaneous microcirculation. Rev Sci Instrum 2016; 87:036111. [PMID: 27036844 DOI: 10.1063/1.4945044] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 03/17/2016] [Indexed: 06/05/2023]
Abstract
This note describes a newly developed technique for evaluation of cutaneous microcirculation. The technique called Flow Mediated Skin Fluorescence (FMSF) is based on monitoring of NADH fluorescence intensity emitted from the skin tissue cells of a forearm. The changes in fluorescence intensity as a function of time in response to blocking and releasing of blood flow in a forearm are used as a measure of oxygen transport with blood to the tissue, which directly correlates with the skin microcirculation status. Preliminary results collected for healthy volunteers and patients experiencing serious cardiovascular problems indicated a usefulness of FMSF technique for evaluation of health related perturbations in cutaneous microcirculation.
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Affiliation(s)
- L Piotrowski
- Angionica Ltd., Zeromskiego 116, 90-924 Lodz, Poland
| | - M Urbaniak
- Institute of Applied Radiation Chemistry, Lodz University of Technology, 90-924 Lodz, Poland
| | - B Jedrzejczak
- Institute of Applied Radiation Chemistry, Lodz University of Technology, 90-924 Lodz, Poland
| | - A Marcinek
- Angionica Ltd., Zeromskiego 116, 90-924 Lodz, Poland
| | - J Gebicki
- Angionica Ltd., Zeromskiego 116, 90-924 Lodz, Poland
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Kalaska B, Piotrowski L, Leszczynska A, Michalowski B, Kramkowski K, Kaminski T, Adamus J, Marcinek A, Gebicki J, Mogielnicki A, Buczko W. Antithrombotic effects of pyridinium compounds formed from trigonelline upon coffee roasting. J Agric Food Chem 2014; 62:2853-2860. [PMID: 24650005 DOI: 10.1021/jf5008538] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [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
Coffee may exert a preventive effect on arterial thrombosis. Trigonelline is one of the most abundant compounds in coffee that undergoes pyrolysis upon roasting of coffee beans. The aim of the present study was to identify pyridinium compounds formed upon trigonelline pyrolysis and coffee roasting and to investigate the effect of three of them, i.e., 1-methylpyridine and 1,3- and 1,4-dimethylpyridine, on experimentally induced arterial thrombosis in rats. 1,3- and 1,4-dimethylpyridine but not 1-methylpyridine inhibited arterial thrombus formation. 1,3-Dimethylpyridine inhibited platelet aggregation and reduced fibrin formation in platelet-rich plasma, whereas 1,4-dimethylpyridine increased the plasma level of 6-keto-PGF1α. 1,4-Dimethylpyridine slightly increased rat tissue plasminogen activator plasma activity. In summary, we demonstrated that pyridinium compounds display mild antithrombotic properties due to stimulation by prostacyclin release (1,4-dimethylpyridine) and inhibition of platelet aggregation (1,3-dimethylpyridine). Those pyridinium compounds may, to some extent, be responsible for the beneficial effects of coffee drinking.
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Affiliation(s)
- Bartlomiej Kalaska
- Department of Pharmacodynamics, Medical University of Bialystok , Mickiewicza Str. 2C, 15-222 Bialystok, Poland
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Azimi A, Kuznecovs S, Kuznecovs J, Blazejczyk A, Switalska M, Chlopicki S, Marcinek A, Gebicki J, Wietrzyk J, Egyhazi S, Azimi A, Ghasghgaei S, Frostvik Stolt M, Hertzman Johansson C, Hansson J, Delage JD, Li H, Lu H, Cazin LH, Vannier JP, Drouet L, Dupuy E, Soria J, Varin R, Soria C, Castle J, Kreiter S, Diekmann J, Lower M, van der Roemer N, de Graaf J, Selmi S, Diken M, Boegel S, Paret C, Koslowski M, Kuhn AN, Britten CM, Huber C, Tureci O, Sahin U, Procopio G, Verzoni E, Testa I, de Braud F, Misale S, Yaeger R, Hobor S, Scala E, Janakiraman M, Liska D, Valtorta E, Schiavo R, Buscarino M, Siravergna G, Bencardino K, Cercek A, Chen C, Veronese S, Zanon C, Sartore-Bianchi A, Gambacorta M, Gallicchio M, Vakiani E, Boscaro V, Medico E, Weiser M, Siena S, di Nicolantonio F, Solit D, Bardelli A, Burbridge MF, Dovat SP, Song C, Payne KJ, Yang L, Cree A, Glaysher M, Bolton L, Johnson P, Atkey N, Torrance C, Bogush TA, Dudko EA, Shaturova AS, Tikhomirov MV, Bogush EA, Polotsky BE, Tjulandin SA, Davydov MI, Hertzman Johansson C, Azimi A, Pernemalm M, Pawitan Y, Frostvik Stolt M, Lazar V, Lundeberg J, Lehtio J, Egyhazi S, Hansson J, Rasul A, Ma T, Dyshlovoy SA, Naeth I, Venz S, Fedorov SN, Shubina LK, Stonik VA, Balabanov S, Honecker F, Kongpracha P, Tohtong R, Demidkina V, Kudryavtsev VA, Kabakov AE, Golan T, Atias D, Barshack I, Avivi C, Goldstein RS, Berger R, Ben-Arieh S, Urban D, Maimon N, Leibowitz-Amit R, Keizman D, Biran H, Mishaeli M, Onn A, Gottfried M, Saraswati S, Agrawal SS, Raval P, Patel M, Ganure L, Hanen JH, Sonia BHK, Aya M, Zohra H, Touhami M, Cheng X, Shi TY, Yang L, Yang G, Tu XY, Wu XH, Wei QY, Benboubker H, Zheng BQ, Shi YQ, He XH, Liang LH, Saied GM. Therapeutics. Ann Oncol 2012. [DOI: 10.1093/annonc/mds162] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Blazejczyk A, Switalska M, Chlopicki S, Marcinek A, Gebicki J, Wietrzyk J. P2.03 Combination of Endothelium Directed Drugs and Cyclophosphamide - A Comprehensive Approach in Cancer Treatment. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)31326-0] [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] Open
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Nowak R, Wrzosek A, Łukasiak A, Rutkowska M, Adamus J, Gebicki J, Dołowy K, Szewczyk A, Tarasiuk J. Effect of selected NAD+ analogues on mitochondria activity and proliferation of endothelial EA.hy926 cells. Eur J Pharmacol 2010; 640:102-11. [PMID: 20447392 DOI: 10.1016/j.ejphar.2010.04.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2009] [Revised: 03/25/2010] [Accepted: 04/19/2010] [Indexed: 10/19/2022]
Abstract
The aim of the study was to examine the effect of 1-methylnicotinamide (MNA) and 1-methyl-3-nitropyridine (MNP) on mitochondria activity and proliferation of endothelial EA.hy926 cells. The activity of MNA was also referred to nicotinamide (NAM) being MNA metabolic precursor. NAM and MNA used at high concentrations (up to 1 mM) had no effect on mitochondria metabolism and proliferation of EA.hy926 cells. It could be related to the fact that these compounds hardly cross the cell membrane. It supports the results of our previous study suggesting that anti-inflammatory and anti-thrombotic effects of MNA could be associated with its ability to bind to glycosaminoglycans, especially heparins, located on the endothelium membrane without entering into target cells. In contrast, MNP caused substantial changes in mitochondria activity and proliferation of EA.hy926 cells. This compound used at low concentrations (below 100 microM) blocked the cell cycle of EA.hy926 cells in G1 phase and was very effective in inhibiting cell growth (IC50=13.8+/-2.4 microM). At higher concentrations (0.1-1 mM) MNP caused a significant reduction of cell survival. The observed effects of MNP could be related, at least in part, to its ability to influence the ATP and NAD+ intracellular levels. MNP caused also important changes in Ca2+ intracellular concentration, significant decrease in inner mitochondrial membrane potential and high increase in mitochondrial respiration of EA.hy926 cells. The observed effects of MNP may be related in part to its cellular metabolites detected after 45 min incubation with 250 microM MNP.
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Affiliation(s)
- Robert Nowak
- Department of Biochemistry, University of Szczecin, 3c Felczaka St, 71-412 Szczecin, Poland
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Maruszewska A, Kostrzewa-Nowak D, Adamus J, Czupryńska K, Maryniak D, Gebicki J, Tarasiuk J. The ability of selected pyridinium salts to increase the cytotoxic activity of vincristine but not doxorubicin towards sensitive and multidrug resistant promyelocytic leukaemia HL60 cells. J Pharm Pharmacol 2010; 60:647-53. [DOI: 10.1211/jpp.60.5.0011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Abstract
The aim of this study was to examine the effect of selected pyridinium salts, 1-methyl-3-nitropyridine chloride (MNP+Cl−) and 3,3,6,6,10-pentamethyl-3,4,6,7-tetrahydro-[1,8(2H,5H)-dion]acridine chloride (MDION+Cl−), on the activity of doxorubicin (DOX) and vincristine (VINC) towards human promyelocytic leukaemia HL60 cells as well as its multidrug resistant (MDR) sublines exhibiting two different phenotypes of MDR related to the overexpression of P-glycoprotein (HL60/VINC) or MRP1 (HL60/DOX). MNP and MDION salts were much less cytotoxic themselves (about 100-fold and 2000-fold compared with DOX and VINC, respectively) against HL60 cells but, in contrast to DOX and VINC, they conserved an important cytotoxic activity towards resistant HL60/VINC and HL60/DOX cells (resistance factor, RF = 2–4.5). It was shown that MNP+Cl− and MDION+Cl− increased the cytotoxicity of non-bioreductive antitumour agent VINC towards human promyelocytic leukaemia HL60 cells and its resistant sublines HL60/VINC and HL60/DOX. However, in the case of DOX the decrease in its cytotoxic activity towards all studied cell lines was observed in the presence of MNP+Cl− and MDION+Cl−. Presented data suggest that the bioreductive drug DOX, in contrast to VINC, could compete with pyridinium salts (MNP+Cl− and MDION+Cl−) for NADPH-dependent oxidoreductases and for undergoing cellular reductive activation. This could explain the inefficiency of these salts to increase the cytotoxic activity of DOX against examined leukaemic HL60 cell line and its MDR sublines, HL60/VINC and HL60/DOX.
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Affiliation(s)
- Agnieszka Maruszewska
- Department of Biochemistry, University of Szczecin, 3c Felczaka St, 71-412 Szczecin, Poland
| | - Dorota Kostrzewa-Nowak
- Department of Biochemistry, University of Szczecin, 3c Felczaka St, 71-412 Szczecin, Poland
| | - Jan Adamus
- Institute of Applied Radiation Chemistry, Technical University, 116 Zeromskiego St., 90-924 Lodz, Poland
| | - Katarzyna Czupryńska
- Department of Biochemistry, University of Szczecin, 3c Felczaka St, 71-412 Szczecin, Poland
| | - Dominika Maryniak
- Department of Biochemistry, University of Szczecin, 3c Felczaka St, 71-412 Szczecin, Poland
| | - Jerzy Gebicki
- Institute of Applied Radiation Chemistry, Technical University, 116 Zeromskiego St., 90-924 Lodz, Poland
| | - Jolanta Tarasiuk
- Department of Biochemistry, University of Szczecin, 3c Felczaka St, 71-412 Szczecin, Poland
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Gebicki J, Modigell M, Cherreeluck N, Schumacher M, van der Burg J, Roebroeck E. Entwicklung und Vergleich von Reaktoren zur biosolaren Wasserstoffherstellung. CHEM-ING-TECH 2009. [DOI: 10.1002/cite.200950553] [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: 11/06/2022]
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Szajerski P, Zielonka J, Sikora A, Adamus J, Marcinek A, Gebicki J, Kozlovski VI, Drelicharz L, Chłopicki S. Radical scavenging and NO-releasing properties of selected β-adrenoreceptor antagonists. Free Radic Res 2009; 40:741-52. [PMID: 16984001 DOI: 10.1080/10715760600690329] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
It is claimed that novel beta-adrenolytic drugs possess superior antioxidant properties as compared to classical selective or non-selective beta-adrenoceptor antagonists. Here we tested this notion by analyzing radical scavenging properties of selected beta-adrenolytic drugs and their ability to release nitric oxide in biological preparations. Selective beta1-adrenolytics such as nebivolol, atenolol, metoprolol and non-selective beta-adrenolytics with alpha1-receptor blocking properties such as carvedilol and labetalol were chosen for analysis. NO-releasing properties of nebivolol and carvedilol distinguished third generation beta-adrenolytics from their older counterparts while the reactivity towards hydroxyl and peroxyl radicals discerns only carvedilol but not nebivolol. Thus, superior clinical efficacy of third generation beta-adrenolytics may be related to their ability to release NO rather then to their direct antioxidant properties.
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Affiliation(s)
- Piotr Szajerski
- Institute of Applied Radiation Chemistry, Technical University, Zeromskiego 116, 90-924 Lodz, Poland
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Slominska EM, Yuen A, Osman L, Gebicki J, Yacoub MH, Smolenski RT. Cytoprotective effects of nicotinamide derivatives in endothelial cells. Nucleosides Nucleotides Nucleic Acids 2008; 27:863-6. [PMID: 18600553 DOI: 10.1080/15257770802146528] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Following discovery of NAD(+)-dependent reactions that control gene expression, cytoprotection, and longevity, there has been a renewed therapeutic interest in precursors, such as nicotinamide and its derivatives. We tested 20 analogues of nicotinamide for their ability to protect endothelial cells from peroxynitrite stress and their effect on poly (ADP-ribose) polymerase (PARP) activity. Several nicotinamide derivatives protected endothelial cells from peroxynitrite-induced depletion of cellular NAD(+) and ATP concentrations, but only some of these compounds inhibited PARP. We conclude that some nicotinamide derivatives provide protection of endothelial cells against peroxynitrite-induced injury independent of inhibition of PARP activity. Preservation of the NAD(+) pool was a common effect of these compounds.
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Affiliation(s)
- E M Slominska
- Department of Biochemistry, Medical University of Gdansk, Gdansk, Poland
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Bartuś M, Łomnicka M, Kostogrys RB, Kaźmierczak P, Watała C, Słominska EM, Smoleński RT, Pisulewski PM, Adamus J, Gebicki J, Chlopicki S. 1-Methylnicotinamide (MNA) prevents endothelial dysfunction in hypertriglyceridemic and diabetic rats. Pharmacol Rep 2008; 60:127-138. [PMID: 18276994] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2007] [Revised: 12/03/2007] [Indexed: 05/25/2023]
Abstract
For many years, 1-methylnicotinamide (MNA), a primary metabolite of nicotinamide, has been considered inactive. Recently however, it has been discovered that MNA possesses anti-thrombotic and anti-inflammatory activity. In the present study we investigated whether chronic administration of MNA to hypertriglyceridemic or diabetic rats would reverse endothelial dysfunction characterized by the impairment of nitric oxide (NO)-dependent vasodilatation. Hypertriglyceridemia in rats was induced by fructose-rich (60%) diet, while diabetes was induced by streptozotocin injection (70 mg/kg). After eight weeks, in hypertriglyceridemic or diabetic rats treated or non-treated with MNA(100 mg/kg), we analyzed the magnitude of endothelium-dependent or endothelium-independent vasodilatation in aorta induced by acetylcholine or S-nitroso-N-acetyl-penicillamine (SNAP), respectively, as well as plasma concentration of: cholesterol, triglycerides, glucose, HbA(1c), fructosamine, peptide C, endogenous MNA and its metabolites (M2PY, M4PY). In diabetic rats plasma concentration of glucose, HbA(1c) and fructosamine was elevated (402.08 +/- 19.01 vs. 82.06 +/- 5.41 mg/dl, p < 0.001; 9.55 +/- 0.56 vs. 4.93 +/- 0.24%, p = 0.052 and 2.53 +/- 0.10 vs. 1.14 +/- 0.06 mmol DTF/mg protein, p < 0.001 in diabetic and control rats, respectively). In hypertriglyceridemic rats plasma concentration of triglycerides was elevated (4.25 +/- 0.27 vs. 1.55 +/- 0.12 mmol/l, p < 0.001 in hypertriglyceridemic and control rats, respectively). In both models the NO-dependent vasodilatation in aorta induced by acetylcholine was significantly impaired as compared to control rats, while the response to SNAP was largely preserved. In hypertriglyceridemic rats, 4 weeks of treatment with MNA(100 mg/kg, po) resulted in a three to six-fold increase in endogenous levels of MNA and its metabolites (M2PY and M4PY), the fall in triglycerides concentration in plasma (from 4.25 +/- 0.27 to 2.22 +/- 0.14 mmol/l, p < 0.001), and the preservation of the NO-dependent vasodilatation. In diabetic rats chronic treatment with MNA also prevented the impairment of NO-dependent vasodilatation, while it displayed only a mild effect on hyperglycemia and did not lower triglycerides concentration. In summary, MNA treatment decreased plasma triglycerides concentration in hypertriglyceridemic, but not in diabetic rats, while it prevented the development of endothelial dysfunction in aorta in both of these models. Accordingly, the ability of MNA to reverse endothelial dysfunction seems to be independent of its hypolipemic activity.
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MESH Headings
- Animals
- Aorta, Thoracic/drug effects
- Aorta, Thoracic/physiopathology
- Blood Glucose/drug effects
- C-Peptide/blood
- Cardiovascular Agents/pharmacology
- Diabetes Mellitus, Experimental/drug therapy
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/physiopathology
- Dose-Response Relationship, Drug
- Endothelium, Vascular/drug effects
- Endothelium, Vascular/metabolism
- Endothelium, Vascular/physiopathology
- Fructosamine/blood
- Glycated Hemoglobin/metabolism
- Hypertriglyceridemia/drug therapy
- Hypertriglyceridemia/metabolism
- Hypertriglyceridemia/physiopathology
- Lipids/blood
- Male
- Niacinamide/analogs & derivatives
- Niacinamide/pharmacology
- Nitric Oxide/metabolism
- Rats
- Rats, Sprague-Dawley
- Rats, Wistar
- Vasodilation/drug effects
- Vasodilator Agents/pharmacology
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Affiliation(s)
- Magdalena Bartuś
- Department of Experimental Pharmacology, Chair of Pharmacology, Jagiellonian University Medical College, Grzegórzecka 16, Kraków, Poland
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Gebicki J, Modigell M, Schumacher M. Semikontinuierlicher Betrieb eines Photobioreaktors zur Wasserstoffproduktion. CHEM-ING-TECH 2007. [DOI: 10.1002/cite.200750272] [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: 11/09/2022]
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31
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Chlopicki S, Swies J, Mogielnicki A, Buczko W, Bartus M, Lomnicka M, Adamus J, Gebicki J. 1-Methylnicotinamide (MNA), a primary metabolite of nicotinamide, exerts anti-thrombotic activity mediated by a cyclooxygenase-2/prostacyclin pathway. Br J Pharmacol 2007; 152:230-9. [PMID: 17641676 PMCID: PMC1978255 DOI: 10.1038/sj.bjp.0707383] [Citation(s) in RCA: 146] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND AND PURPOSE 1-methylnicotinamide (MNA) has been considered to be an inactive metabolite of nicotinamide. Here we assessed the anti-thrombotic activity of MNA in vivo. EXPERIMENTAL APPROACH Antithrombotic action of MNA was studied in normotensive rats with extracorporeal thrombus formation (thrombolysis), in renovascular hypertensive rats with intraarterial thrombus formation (arterial thrombosis) and in a venous thrombosis model in rats (venous thrombosis). KEY RESULTS MNA (3-100 mg kg(-1)) induced a dose-dependent and sustained thrombolytic response, associated with a rise in 6-keto-PGF(1alpha) in blood. Various compounds structurally related to MNA were either inactive or weaker thrombolytics. Rofecoxib (0.01-1 mg kg(-1)), dose-dependently inhibited the thrombolytic response of MNA, indomethacin (5 mg kg(-1)) abolished it, while L-NAME (5 mg kg(-1)) were without effect. MNA (3-30 mg kg(-1)) also reduced arterial thrombosis and this effect was abrogated by indomethacin (2.5 mg kg(-1)) as well as by rofecoxib (1 mg kg(-1)). MNA, however, did not affect venous thrombosis. In vitro MNA did not modify platelet aggregation nor induce vasodilation. CONCLUSIONS AND IMPLICATIONS MNA displayed a profile of anti-thrombotic activity in vivo that surpasses that of closely related compounds. MNA inhibited platelet-dependent thrombosis by a mechanism involving cyclooxygenase-2 and prostacyclin. Our findings suggest that endogenous MNA, produced in the liver by nicotinamide N-methyltransferase, could be an endogenous activator of prostacyclin production and thus may regulate thrombotic as well as inflammatory processes in the cardiovascular system.
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Affiliation(s)
- S Chlopicki
- Department of Experimental Pharmacology, Chair of Pharmacology, Jagiellonian University Medical College Krakow, Poland
- Author for correspondence:
| | - J Swies
- Department of Experimental Pharmacology, Chair of Pharmacology, Jagiellonian University Medical College Krakow, Poland
| | - A Mogielnicki
- Department of Pharmacodynamics, Medical University of Bialystok Bialystok, Poland
| | - W Buczko
- Department of Pharmacodynamics, Medical University of Bialystok Bialystok, Poland
| | - M Bartus
- Department of Experimental Pharmacology, Chair of Pharmacology, Jagiellonian University Medical College Krakow, Poland
| | - M Lomnicka
- Department of Experimental Pharmacology, Chair of Pharmacology, Jagiellonian University Medical College Krakow, Poland
| | - J Adamus
- Institute of Applied Radiation Chemistry, Technical University of Lodz Lodz, Poland
| | - J Gebicki
- Institute of Applied Radiation Chemistry, Technical University of Lodz Lodz, Poland
- Author for correspondence:
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Wieczorkowska M, Szajerski P, Michalski R, Adamus J, Marciniak A, Gebicki J, Ciesielska E, Szmigiero L, Lech-Marańda E, Szmigielska-Kapłon A, Robak T. Cytotoxic activity of the selected pyridinium salts against murine leukemia L1210. Pharmacol Rep 2007; 59:216-23. [PMID: 17556800] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2006] [Revised: 04/18/2007] [Indexed: 05/15/2023]
Abstract
The objective of this work was to evaluate the relationship between chemical reactivity of 3-substituted pyridinium salts and their cytotoxic properties against murine leukemia L1210. Chemical reactivity of pyridinium salts towards NADH oxidation following one-step hydride transfer depends strongly on their redox properties. The investigated reaction may reflect the ability of the salts to deplete NADH level in cells and to affect their metabolic functions. On the other hand, the cytotoxic activity against murine leukemia cells, expressed as ED50 values, varied strongly depending upon the compound used. The investigated salts showed also a diverse antileukemic effect in in vivo experiments as measured by the increase in the survival time of L1210 leukemia-bearing mice. These biological effects were correlated with equilibrium constants found for the reaction of pyridinium salts with NADH.
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Affiliation(s)
- Marzena Wieczorkowska
- Institute of Applied Radiation Chemistry, Technical University of Łódź, Zeromskiego 116, PL 90-924 Łódź, Poland
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Wozniacka A, Szajerski P, Adamus J, Gebicki J, Sysa-Jedrzejowska A. In search for new antipsoriatic agents: NAD topical composition. Skin Pharmacol Physiol 2006; 20:37-42. [PMID: 17035720 DOI: 10.1159/000096170] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2005] [Accepted: 04/21/2006] [Indexed: 11/19/2022]
Abstract
The aim of the study was to examine the effectiveness of the oxidized form of nicotinamide adenine dinucleotide (NAD(+)), adenosine precursor, in 37 patients suffering from psoriasis. As NAD(+) is known to be relatively unstable, the second goal was to establish the proper conditions for the satisfactory stability of topical NAD(+) composition. In each patient, two matching plaques were selected for the study. Topical treatment with 1 or 0.3% NAD(+) in Vaseline ointment administered twice daily was compared with overnight therapy with 0.1% anthralin applied for 12 h and placebo. The enzymatic method was applied to determine the stability of NAD(+) in Vaseline ointment. After a 4-week application, the reduction in erythema, infiltration and desquamation caused by 1 or 0.3% topical NAD(+) composition was similar to the reduction caused by 0.1% anthralin. It was demonstrated that NAD(+) underwent a considerable decomposition at room temperature, while it was sufficiently stable at 5 degrees C; thus, for a longer use the agent should be stored at fridge temperature. NAD(+) therapy combines good efficacy, cosmetic acceptability and convenient twice-daily application.
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Affiliation(s)
- A Wozniacka
- Department of Dermatology, Medical University, Lodz, Poland.
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Abstract
Paraquat and diquat undergo redox cycling mediated by xanthine oxidase in the NADH-dependent manner. In these processes, the rates of NADH oxidation and superoxide formation are increased almost 10-fold. The addition of heparin can substantially inhibit these processes. A protective role of heparin against oxygen radicals formation can be rationalized in terms of its ability to bind paraquat or diquat. The binding process has been investigated by means of the pulse radiolysis technique. Biological consequences of the binding processes are discussed.
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Affiliation(s)
- Jacek Zielonka
- Institute of Applied Radiation Chemistry, Technical University, 90-924 Lodz, Poland
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Czerwiñska M, Sikora A, Szajerski P, Adamus J, Marcinek A, Gebicki J, Bednarek P. Mechanistic Aspects of Alloxan Diabetogenic Activity: A Key Role of Keto−Enol Inversion of Dialuric Acid on Ionization. J Phys Chem A 2006; 110:7272-8. [PMID: 16737280 DOI: 10.1021/jp0614594] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The inversion of the keto-enol stability order of dialuric acid on ionization was calculated and verified experimentally. The radical cations in both forms were characterized. The spectrum of the keto form was observed upon direct ionization of dialuric acid under matrix conditions, whereas the enol form was formed upon a sequential electron-proton-proton attachment to alloxan under acidic aqueous condition. Facilitation of the one-electron oxidation of dialuric acid upon its enolization can result in a more effective formation of superoxide radical anion in the process of its auto-oxidation. This process is discussed in reference to the alloxan diabetogenic action. Both neutral keto and enol forms are energetically close, and under favorable conditions, the auto-oxidation of dialuric acid could involve participation of the enol form.
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Adamiec M, Adamus J, Ciebiada I, Denys A, Gebicki J. Search for drugs of the combined anti-inflammatory and anti-bacterial properties: 1-methyl-N'-(hydroxymethyl)nicotinamide. Pharmacol Rep 2006; 58:246-9. [PMID: 16702628] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2005] [Revised: 02/13/2006] [Indexed: 05/09/2023]
Abstract
It has already been reported that 1-methylnicotinamide (MNA+), a primary metabolite of nicotinamide (vitamin B3), possesses remarkable anti-inflammatory properties [3]. This communication shows that 1-methyl-N'-(hydroxymethyl)nicotinamide (MNAF+ can be regarded as MNA+ precursor able to release simultaneously formaldehyde. Therefore, MNAF+ can be viewed as a candidate for drug with the combined anti-inflammatory and anti-bacterial properties.
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Affiliation(s)
- Maciej Adamiec
- Chair of Microbiology, Medical University, Hallera 1, PL 90-647 Łódź, Poland
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Abstract
Rosacea is a chronic facial dermatosis with a progressive course, which is characterized by the presence of erythema, papules, pustules, telangiectasias and sebaceous gland hyperplasia. However, the aetiology is still unknown; genetic predisposition, gastrointestinal disorders (Helicobacter pylori), infestations with Demodex folliculorum and environmental stimuli are considered to be involved in the inflammatory process. A metabolite of nicotinamide, 1-methylnicotinamide (MNA(+)), has anti-inflammatory properties, and this is the first study to test the effectiveness of this agent in treating rosacea. In total, 34 patients with rosacea were treated with a gel containing 0.25% MNA(+) as a chloride salt, twice daily for 4 weeks, after which improvement was observed in 26/34 cases. The improvement was good in 9/34 and moderate in 17/34, but no clinical effect was noted in seven subjects. In only one case was skin irritation given as the reason for treatment withdrawal. These results indicate that MNA(+) might be a useful agent for treating rosacea.
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Affiliation(s)
- A Wozniacka
- Department of Dermatology, Medical University of Lodz, Poland.
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Modigell M, Gebicki J. Ein dreistufiger biosolarer Prozess zur Produktion von Wasserstoff und Methan. CHEM-ING-TECH 2005. [DOI: 10.1002/cite.200590323] [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: 11/10/2022]
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Wieczorkowska M, Zielonka J, Celińska J, Adamus J, Ciesielska E, Marcinek A, Szmigiero L, Gebicki J. 1-Methyl-3-nitropyridine: an efficient oxidant of NADH in non-enzymatic and enzyme-mediated processes. Free Radic Res 2004; 37:1157-62. [PMID: 14703727 DOI: 10.1080/10715760310001604161] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
It is shown that NADH can be effectively oxidized by 1-methyl-3-nitropyridine in non-enzymatic and enzyme-mediated processes. Mechanistic issues of these reactions are discussed. These processes seem to contribute to the observed cytotoxicity of 1-methyl-3-nitropyridine. A key role of 1-methyl-3-nitropyridinyl radical formed in the enzyme-mediated processes is emphasized.
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Affiliation(s)
- Marzena Wieczorkowska
- Institute of Applied Radiation Chemistry, Technical University, Zeromskiego 116, 90-924 Lodz, Poland
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Abstract
Two mechanisms of the interconversion of NADH and NAD+ in the coenzyme itself and in its analogues are discussed: a one-step hydride transfer and a stepwise electron-proton-electron transfer. Direct characterization of the transient species in the stepwise process and inversion of the stability order of the keto and enol tautomers is presented. The nonenzymatic and enzyme-mediated reactions of selected pyridinium salts that affect the NADH <==>NAD+ equilibrium are discussed in terms of their potential cytotoxicity.
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Affiliation(s)
- Jerzy Gebicki
- Institute of Applied Radiation Chemistry, Technical University, 90-924 Lodz, Poland
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Abstract
The reactivity of genistein toward reactive radical species has been investigated by means of pulse radiolysis. The values of rate constants, respectively 2.3 x 10(10) M(-1)s(-1) and 1.3 x 10(10) M(-1)s(-1) for the reaction with hydroxyl radical at pH 8.3 and 3.0, are close to diffusion limit indicating that genistein is a potent hydroxyl radical scavenger. The reactivity of genistein towards one-electron oxidants has also been investigated. The rate constants k = 4.6 x 10(9) M(-1)s(-1) (pH 8.3) and 6.7 x 10(8) M(-1)s(-1) (pH 7.6) have been determined for the reaction of genistein with *N3 and Br2*- radicals, respectively. For both oxidants the rate constants at pH 3 does not exceed 10(8) M(-1)s(-1). The differences in reactivity of genistein towards the oxidants at different acidity of the solution have been assumed to arise from the acid-base equilibria of genistein. The dissociation constants for genistein (pKa: 7.2, 10.0, and 13.1) have been evaluated spectroscopically. The influence of acid-base equilibria on bond dissociation energy and ionization potential for genistein has also been investigated by means of DFT calculations. It has been concluded on the basis of these calculations that monoanionic form of genistein existing at physiological pH is more powerful radical scavenger than the neutral molecule.
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Affiliation(s)
- Jacek Zielonka
- Institute of Applied Radiation Chemistry, Technical University of Lodz, Lodz, Poland
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Abstract
Among many important physiological functions played by NADH (the reduced form of beta-nicotinamide adenine dinucleotide) its antioxidative properties are remarkable. Acting directly as an antioxidant, NADH can effectively protect the cell and its membrane from destruction by free radicals. NADH can be stabilized as a suspension in hydrophobic ointments prepared in a way that prevents contact with atmosphere containing oxygen and water. We present the first report of NADH as a treatment for some inflammatory dermatoses. It was found that topical application of 1% NADH diluted in Vaseline ointment can be very effective in the treatment of rosacea and contact dermatitis. Since no adverse effects were observed, therapy with NADH can be viewed as a potential alternative to other established treatments.
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Affiliation(s)
- A Woźniacka
- Department of Dermatology, Medical University, Lodz, Poland
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Gebicki J, Sysa-Jedrzejowska A, Adamus J, Woźniacka A, Rybak M, Zielonka J. 1-Methylnicotinamide: a potent anti-inflammatory agent of vitamin origin. Pol J Pharmacol 2003; 55:109-12. [PMID: 12856834] [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] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
It has been found that 1-methylnicotinamide (MNA+), a metabolite of nicotinamide, possesses significant anti-inflammatory properties. MNA+ is chemically stable, non-toxic and well tolerated. MNA+ can be used to treat wide variety of diseases and disorders and the use of this compound provides certain advantages over the use of nicotinamide.
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Affiliation(s)
- Jerzy Gebicki
- Institute of Applied Radiation Chemistry, Technical University, Zeromskiego 116, PL 90-924 Lódź, Poland.
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Gebicki J, Krantz A. Interactions between phenol and carbon monoxide under cryogenic conditions. Evidence for a phenol-carbon monoxide complex. J Am Chem Soc 2002. [DOI: 10.1021/ja00338a015] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Gebicki J, Krantz A. Substituent effects on weakly bound complexes of phenols and carbon monoxide in argon matrixes. Hydrogen bonding at cryogenic temperatures. J Am Chem Soc 2002. [DOI: 10.1021/ja00338a016] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [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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Gebicki J, Marcinek A, Mayer J. Valence isomerization of hexamethyl(Dewar benzene) radical cation. Pulse-radiolytic investigation. J Am Chem Soc 2002. [DOI: 10.1021/ja00190a073] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [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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49
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Bednarek P, Bally T, Gebicki J. Characterization of rotameric mixtures in o- and m-substituted benzaldehydes by matrix isolation IR spectroscopy. J Org Chem 2002; 67:1319-22. [PMID: 11846681 DOI: 10.1021/jo0162179] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [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
The cis and trans conformers of benzaldehydes substituted in the o- or m-positions by Cl or CN can be differentiated by IR spectroscopy in Argon matrices. Partial photochemical rotamerization allows assignment of the IR bands and establishment of their relative intensities in pairs of rotamers, which permits, in turn, quantitation of equilibrium compositions prior to photolysis. The observed spectra and equilibrium compositions are in very good agreement with the predictions of vibrational spectra and free energy differences from B3LYP/6-31G calculations. The present work represents the first attempt to quantitate the small contributions that the cis rotamers make to the room-temperature equilibrium compositions of the two o-substituted benzaldehydes. The results for the m-substituted derivatives are compared to earlier estimates based on other methods.
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Affiliation(s)
- Pawel Bednarek
- Department of Chemistry, University of Fribourg, CH-1700 Fribourg, Switzerland
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50
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Bednarek P, Zhu Z, Bally T, Filipiak T, Marcinek A, Gebicki J. Electron-transfer-induced tautomerization in methylindanones: electronic control of the tunneling rate for enolization. J Am Chem Soc 2001; 123:2377-87. [PMID: 11456887 DOI: 10.1021/ja003708m] [Citation(s) in RCA: 9] [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
The radical cations generated from 4-methyl- and 4,7-dimethylindanone, as well as their deuterated isotopomers, isolated in Argon matrices, were found to undergo enolization to the corresponding enol radical cations at rates that differ by orders of magnitude. It is shown by quantum chemical calculations that the effect of the remote methyl group in the 4-position is of purely electronic nature in that it stabilizes the unreactive pi-radical relative to the reactive sigma-radical state of the 7-methylindanone radical cation. The observed kinetic behavior of the two compounds can be reproduced satisfactorily on the basis of calculated height and width of the thermal barrier for enolization, using the Bell model for quantum mechanical tunneling. High-level calculations on the methylacrolein radical cation show that barriers for enolization in radical cations are overestimated by B3LYP/6-31G.
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Affiliation(s)
- P Bednarek
- Contribution from the Institute of Physical Chemistry, University of Fribourg, Perolles, CH-1700 Fribourg, Switzerland
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