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Kubo K, Kawai Y. Zeolite Improves High-Fat Diet-Induced Hyperglycemia, Hyperlipidemia and Obesity in Mice. J Nutr Sci Vitaminol (Tokyo) 2021; 67:283-291. [PMID: 34719613 DOI: 10.3177/jnsv.67.283] [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] [Indexed: 11/27/2022]
Abstract
Zeolite, an abundant mineral in the Earth's crust, is utilized in a wide range of fields because of its well-known adsorption properties. Its application as a functional food ingredient resembling dietary fiber is expected, but it has not yet been investigated in the context of prevention of lifestyle-related diseases. The present study was designed to evaluate the availability and safety of a natural zeolite preparation for this purpose. Acute oral toxicity testing showed that the lowest lethal dose of zeolite was more than 2,000 mg/kg body weight for both male and female mice. In a prolonged feeding test for 18 wk using model mice with high-fat-induced obesity and type 2 diabetes mellitus, intake of a 10% zeolite-containing diet suppressed body weight gain, as well as liver and visceral fat weights, without any changes in food and energy intake. Moreover, plasma lipid (triacylglycerol, total cholesterol and high-density-lipoprotein cholesterol) levels and fasting blood glucose levels decreased in parallel with zeolite intake. No changes in the glycated hemoglobin level were found. However, in an oral glucose tolerance test at week 12, increased postprandial blood glucose levels were suppressed in accordance with zeolite intake, and then insulin secretion was also decreased. On the other hand, a decrease of plasma amylase activity and increases in total bilirubin and urea nitrogen suggested the need for further investigation of safety.
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Affiliation(s)
- Kazuhiro Kubo
- Department of Home Economics, Faculty of Education, Gifu University
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Kraljević Pavelić S, Micek V, Bobinac D, Bazdulj E, Gianoncelli A, Krpan D, Žuvić M, Eisenwagen S, Stambrook PJ, Pavelić K. Treatment of osteoporosis with a modified zeolite shows beneficial effects in an osteoporotic rat model and a human clinical trial. Exp Biol Med (Maywood) 2021; 246:529-537. [PMID: 33183068 PMCID: PMC7930600 DOI: 10.1177/1535370220968752] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 08/24/2020] [Accepted: 10/02/2020] [Indexed: 12/22/2022] Open
Abstract
The severity of osteoporosis in humans manifests in its high incidence and by its complications that diminish quality of life. A societal consequence of osteoporosis is the substantial burden that it inflicts upon patients and their families. Several bone-modifying drugs have been prescribed to patients with osteoporosis. However, evidence for their anti-fracture efficacy remains inconclusive. To the contrary, long-term use of anti-osteoporotic drugs such as bisphosphonates and Denosumab, an RANKL inhibitor, have resulted in adverse events. We now present an alternative and adjuvant approach for treatment of osteoporosis. The data derive from in vivo studies in an ovariectomized rat model and from a randomized double blind, placebo-controlled human clinical study. Both studies involved treatment with Panaceo Micro Activation (PMA)-zeolite-clinoptilolite, a defined cation exchange clinoptilolite, which clearly improved all bone histomorphometric parameters examined from ovariectomized animals, indicative for increased bone formation. Moreover, intervention with PMA-zeolite-clinoptilolite for one year proved safe in humans. Furthermore, patients treated with PMA-zeolite-clinoptilolite showed an increase in bone mineral density, an elevated level of markers indicative of bone formation, a significant reduction in pain, and significantly improved quality of life compared with patients in the control (placebo) group. These encouraging positive effects of PMA-zeolite-clinoptilolite on bone integrity and on osteoporosis warrant further evaluation of treatment with PMA-zeolite-clinoptilolite as a new alternative adjuvant therapy for osteoporosis.
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Affiliation(s)
| | - Vedran Micek
- Institute for Medical Research and Occupational Health, 10001 Zagreb, Croatia
| | - Dragica Bobinac
- Department of Anatomy, Faculty of Medicine, University of Rijeka, 51000 Rijeka, Croatia
- Clinic for Surgery, Clinical Hospital Rijeka, 51000 Rijeka, Croatia
- Faculty of Medicine, Juraj Dobrila University of Pula, 52100 Pula, Croatia
| | - Edo Bazdulj
- Department of Anatomy, Faculty of Medicine, University of Rijeka, 51000 Rijeka, Croatia
- Clinic for Surgery, Clinical Hospital Rijeka, 51000 Rijeka, Croatia
| | | | - Dalibor Krpan
- Polyclinic “K – Center,” for Internal Medicine, Gynecology, Radiology, Physical Medicine and Rehabilitation, 10 000 Zagreb, Croatia
| | - Marta Žuvić
- Department of Biotechnology, University of Rijeka, 51000 Rijeka, Croatia
| | | | - Peter J Stambrook
- College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Krešimir Pavelić
- Faculty of Medicine, Juraj Dobrila University of Pula, 52100 Pula, Croatia
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Vitale MG, Barbato C, Crispo A, Habetswallner F, De Martino BM, Riccardi F, Maione A, Eisenwagen S, Vitale G, Cartenì G. ZeOxaNMulti Trial: A Randomized, Double-Blinded, Placebo-Controlled Trial of Oral PMA-zeolite to prevent Chemotherapy-Induced Side Effects, in particular, Peripheral Neuropathy. Molecules 2020; 25:molecules25102297. [PMID: 32414185 PMCID: PMC7288011 DOI: 10.3390/molecules25102297] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/09/2020] [Accepted: 05/11/2020] [Indexed: 01/22/2023] Open
Abstract
Chemotherapy-induced peripheral neuropathy (CIPN) is the most frequently reported adverse effect of oxaliplatin. In this study, we set out to evaluate the role of the panaceo-micro-activation (PMA) zeolite in the reduction of the incidence of CIPN and hematological and liver toxicity. The possible impact of the PMA-zeolite as an adjuvant therapeutic agent is based on its detoxification properties toward agents promoting the development of neuropathy (e.g., ammonium—recognized as a neurotoxic agent produced by tumors), as well as its positive impact on immunity and oxidative stress through its effects in the gastrointestinal tract. From April 2015 to October 2018, a total of 120 patients (pts) diagnosed with predominantly colorectal cancer requiring oxaliplatin-based chemotherapy were randomized to receive either the PMA-zeolite (Multizeo Med) or placebo while undergoing oxaliplatin-based chemotherapy. A nerve-conduction study (NCS) was planned at the baseline, after three and six months of chemotherapy, to evaluate CIPN. Furthermore, the evaluation of hematological and liver toxicity was performed during every cycle of chemotherapy. 70.6% and 64.3% of patients developed CIPN in the placebo and the PMA-zeolite group, respectively. Patients treated with the PMA-zeolite were able to undergo more cycles of chemotherapy (p = 0.03), which also indicates a significant improvement in tolerance to the therapy. The group treated with the PMA-zeolite showed a lower CIPN (although not statistically significant within the whole group of subjects) compared to patients receiving placebo. This advantage was, however, statistically significant in men (p = 0.047). In addition, supplementation with the PMA-zeolite resulted in a lower incidence of severe-grade hematological toxicity (trend toward statistical significance of p = 0.09 was observed). Cancer patients may benefit from the therapy with the appropriate certified zeolite-products (e.g., the PMA-zeolite) for human use in CIPN. The lower CIPN (statistically significant results in the male subgroup) was accompanied by a trend of lower incidence of severe-grade hematological toxicity. Furthermore, these benefits led to a better tolerance toward chemotherapy (increase in cycles) and allow an improved compliance with the oncological treatment protocol.
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Affiliation(s)
- Maria Giuseppa Vitale
- Medical Oncology Unit, University Hospital of Modena, 41125 Modena, Italy
- Correspondence:
| | - Carmela Barbato
- Medical Oncology Unit, AORN Antonio Cardarelli, 80131 Naples, Italy; (C.B.); (F.R.); (A.M.); (G.C.)
| | - Anna Crispo
- Epidemiology and Biostatistics Unit, Istituto Nazionale Tumori-IRCCS “Fondazione G. Pascale”, 80131 Naples, Italy;
| | | | | | - Ferdinando Riccardi
- Medical Oncology Unit, AORN Antonio Cardarelli, 80131 Naples, Italy; (C.B.); (F.R.); (A.M.); (G.C.)
| | - Angela Maione
- Medical Oncology Unit, AORN Antonio Cardarelli, 80131 Naples, Italy; (C.B.); (F.R.); (A.M.); (G.C.)
| | | | - Giovanna Vitale
- School of Medicine and Surgery, University of Campania Luigi Vanvitelli, 81100 Caserta, Italy;
| | - Giacomo Cartenì
- Medical Oncology Unit, AORN Antonio Cardarelli, 80131 Naples, Italy; (C.B.); (F.R.); (A.M.); (G.C.)
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Kraljević Pavelić S, Simović Medica J, Gumbarević D, Filošević A, Pržulj N, Pavelić K. Critical Review on Zeolite Clinoptilolite Safety and Medical Applications in vivo. Front Pharmacol 2018; 9:1350. [PMID: 30538633 PMCID: PMC6277462 DOI: 10.3389/fphar.2018.01350] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [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: 06/20/2018] [Accepted: 11/02/2018] [Indexed: 12/15/2022] Open
Abstract
Unique and outstanding physical and chemical properties of zeolite materials make them extremely useful in a variety of applications including agronomy, ecology, manufacturing, and industrial processes. Recently, a more specific application of one naturally occurring zeolite material, clinoptilolite, has been widely studied in veterinary and human medicine. Due to a number of positive effects on health, including detoxification properties, the usage of clinoptilolite-based products in vivo has increased enormously. However, concerns have been raised in the public about the safety of clinoptilolite materials for in vivo applications. Here, we review the scientific literature on the health effects and safety in medical applications of different clinoptilolite-based materials and propose some comprehensive, scientifically-based hypotheses on possible biological mechanisms underlying the observed effects on the health and body homeostasis. We focus on the safety of the clinoptilolite material and the positive medical effects related to detoxification, immune response, and the general health status.
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Affiliation(s)
- Sandra Kraljević Pavelić
- Department of Biotechnology, Centre for High-Throughput Technologies, University of Rijeka, Rijeka, Croatia
| | | | - Darko Gumbarević
- Department of Biotechnology, Centre for High-Throughput Technologies, University of Rijeka, Rijeka, Croatia
| | - Ana Filošević
- Department of Biotechnology, Centre for High-Throughput Technologies, University of Rijeka, Rijeka, Croatia
| | - Nataša Pržulj
- Computer Science Department, University College London, London, United Kingdom
| | - Krešimir Pavelić
- Department of Biotechnology, Centre for High-Throughput Technologies, University of Rijeka, Rijeka, Croatia.,Juraj Dobrila University of Pula, Pula, Croatia
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Abstract
Zeolites are microporous natural or synthetic tectosilicates, promising for organism detoxification, improvement of the nutrition status and immunity, separation of various biomolecules and cells, detection of biomarkers of various diseases, controlled drug and gene delivery, radical scavenging, haemostasis, tissue engineering and biomaterial coating.
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Affiliation(s)
- Lucie Bacakova
- Institute of Physiology of the Czech Academy of Sciences
- 14220 Prague 4
- Czech Republic
| | - Marta Vandrovcova
- Institute of Physiology of the Czech Academy of Sciences
- 14220 Prague 4
- Czech Republic
| | - Ivana Kopova
- Institute of Physiology of the Czech Academy of Sciences
- 14220 Prague 4
- Czech Republic
| | - Ivan Jirka
- J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences
- 18223 Prague 8
- Czech Republic
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