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Brewster LM, Perrotta ID, Jagernath Z, Taherzadeh Z, van Montfrans GA. Ultrastructural changes in resistance arterioles of normotensive and hypertensive premenopausal women with uterine fibroids. Ultrastruct Pathol 2023; 47:1-12. [PMID: 36780499 DOI: 10.1080/01913123.2023.2171168] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 01/17/2023] [Indexed: 02/15/2023]
Abstract
The association between uterine smooth muscle fibroids and systemic arterial hypertension is poorly understood. Therefore, we explored possible concomitant myocyte pathology of systemic resistance-sized arterioles (200 to 400 μm), isolated from omental samples donated by 19 women (mean age 42 y; SE 1) undergoing fibroid surgery. Vessels of 17 women (8 hypertensives) were available for transmission electron microscopy. We found ultrastructural vessel wall abnormalities in all patients, albeit with greater severity in hypertensives. In the endothelium, this ranged from moderate mitochondrial and endoplasmic reticulum stress in normotensives, to necrosis and sloughing in hypertensives. Myocyte-like cells were observed to migrate across the internal elastic lamina, with isolated subendothelial myocytes in normotensives, and focal subendothelial multicellular aggregates or myo-intimal "cushions" in hypertensives. Medial myocytes of all patients showed abnormalities similar to fibroids, with dilated sarco-endoplasmic reticulum, elongated mitochondria, and myofilament loss involving focal areas or entire cells. To our knowledge, the first study on the ultrastructure of systemic resistance arterioles of women with fibroids indicates that severe abnormalities are present that likely affect blood pressure regulation. Whether these perturbations are induced by fibroids, or represent systemic pathology that affects myocytes of both uterine and vascular tissue warrants further exploration.
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Affiliation(s)
- L M Brewster
- CK Science Foundation, Amsterdam, the Netherlands
| | - I D Perrotta
- University of Calabria, Department of Biology, Ecology and Earth Sciences, Centre for Microscopy and Microanalysis, Cosenza, Italy
| | - Z Jagernath
- Department of Cardiology, Academic Hospital of the University of Paramaribo, Suriname
| | - Z Taherzadeh
- Targeted Drug Delivery Research Center and Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran (formerly, Department of Biomedical Engineering and Physics, University Medical Centers Amsterdam, Amsterdam, the Netherlands)
| | - G A van Montfrans
- Amsterdam UMC Location University of Amsterdam, Department of Internal Medicine, Amsterdam, the Netherlands
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Ansari L, Shiehzadeh F, Taherzadeh Z, Nikoofal-Sahlabadi S, Momtazi-Borojeni AA, Sahebkar A, Eslami S. The most prevalent side effects of pegylated liposomal doxorubicin monotherapy in women with metastatic breast cancer: a systematic review of clinical trials. Cancer Gene Ther 2017; 24:189-193. [PMID: 28409561 DOI: 10.1038/cgt.2017.9] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 03/03/2017] [Accepted: 03/07/2017] [Indexed: 12/22/2022]
Abstract
Despite benefits of systemic chemotherapy in breast cancer treatment, several patients with early-stage breast cancer will develop metastatic breast cancer (MBC). Doxorubicin is among the most active agents against MBC. However, the use of doxorubicin is related to some life-threatening side effects including cardiotoxicity. Many efforts were made to lessen the side effects of doxorubicin and improve its efficacy. Pegylated liposomal doxorubicin (PLD) is a product claimed to achieve these two objectives because of its different pharmacokinetic profile. The aim of this study was to determine the side-effect profile of PLD in MBC through a systematic review of phase II clinical trials. A literature search in PubMed-MEDLINE was performed using terms covering nano-based pharmaceutical systems, 'breast cancer' and 'doxorubicin'. Articles were evaluated according to the inclusion criteria. Reported hematological and non-hematological side effects were categorized. Out of 718 articles that were initially identified, 8 were in accordance with the inclusion criteria. We found that the most important side effects of PLD were skin toxicity and mucositis, but the proportion of patients who showed grade III and IV of these side effects was relatively low. On the other hand, the occurrence of cardiotoxicity, the most important problem with doxorubicin, was considerably reduced in patients treated with PLD. Although PLD has demonstrated a lower toxicity profile than conventional anthracyclines, it has also new side effects. However, it seems that the reduced cardiotoxicity of PLD has made it a more appropriate option in patients with MBC, especially in those with risk factors for cardiac diseases.
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Affiliation(s)
- L Ansari
- Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - F Shiehzadeh
- Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Z Taherzadeh
- Targeted Drug Delivery Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - S Nikoofal-Sahlabadi
- Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - A A Momtazi-Borojeni
- Nanotechnology Research Center, Student Research Committee, Department of Medical Biotechnology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - A Sahebkar
- Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - S Eslami
- Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Medical Informatics, University of Amsterdam, Amsterdam, The Netherlands
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Brewster LM, Taherzadeh Z, Volger S, Clark JF, Rolf T, Wolf H, VanBavel E, van Montfrans GA. Ethnic differences in resistance artery contractility of normotensive pregnant women. Am J Physiol Heart Circ Physiol 2010; 299:H431-6. [DOI: 10.1152/ajpheart.00919.2009] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Black women are at a greater risk to develop hypertension during pregnancy, with a 4.5 times higher rate of fatal preeclampsia than white women. Therefore, it is important to identify factors that may affect this risk. Our group previously proposed that high activity of the central regulatory enzyme of energy metabolism, creatine kinase (CK), may increase ATP-buffering capacity and lead to enhanced vascular contractility and reduced nitric oxide bioavailability. Therefore, we assessed microvascular contractility characteristics in isolated resistance arteries from self-defined black and white normotensive pregnant women using a Mulvany-Halpern myograph. Additionally, morphology was assessed with electron microscopy. Resistance-sized arteries obtained from omentum donated during cesarean sections (11 black women and 20 white women, mean age: 34 yr) studied in series showed similar morphology but significantly greater maximum contractions to norepinephrine (10−5 M) in blacks [14.0 mN (1.8 SE)] compared with whites [8.9 mN (1.4 SE), P = 0.02]. Furthermore, we found greater residual contractility after the specific CK inhibitor dinitrofluorobenzene (10−6 M) in black women [55% (6 SE)] compared with white women [28% (4 SE), P = 0.001] and attenuated vasodilation after bradykinin (10−7 M) in black women [103% (6 SE)] compared with white women [84% (5 SE), P = 0.023], whereas responses to sodium nitroprusside (10−4 M) and amlodipine (10−6 M) were similar. We conclude that compared with white women, normotensive pregnant black women display greater resistance artery contractility and evidence of higher vascular CK activity with attenuated nitric oxide synthesis. These findings in normotensives may imply that the black population is at risk for a further incline in pregnancy-related hypertensive disorders.
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Affiliation(s)
| | - Z. Taherzadeh
- Departments of 1Internal Medicine,
- Medical Physics, and
| | | | - J. F. Clark
- Gynaecology and Obstetrics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands; and
| | | | - H. Wolf
- Vontz Center for Molecular Studies, University of Cincinnati, Cincinnati, Ohio
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