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Hilal B, Eldem A, Oz T, Pehlivan M, Pirim I. Boric Acid Affects Cell Proliferation, Apoptosis, and Oxidative Stress in ALL Cells. Biol Trace Elem Res 2024; 202:3614-3622. [PMID: 38015327 DOI: 10.1007/s12011-023-03958-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 11/09/2023] [Indexed: 11/29/2023]
Abstract
T-cell acute lymphoblastic leukemia (T-ALL) is a type of acute lymphoblastic leukemia from early T-cell progenitors. Interest grows in creating less toxic agents and therapies for chemo-resistant T-ALL cancer. Recently, elemental boron has special properties useful in the creation of new drugs. Studies have revealed the cytotoxic properties of boric acid (BA) on cancer, but not fully understood. We aimed to investigate the effect of BA on cell proliferation, apoptosis, and oxidative stress in the Jurkat cells. The effects of BA on cell viability were determined by 2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide (XTT) assay for 24-48-72 h. The impact of BA on apoptosis was analyzed by acridine orange/ethidium bromide. Expression of apoptosis regulatory genes (Bcl-2, Bax, Caspase-3-8-9) and apoptotic miRNA (miR-21) was used by real-time quantitative polymerase chain reaction (RT-qPCR). The total oxidant status (TOS), total antioxidant status (TAS), and the oxidative stress index (OSI) value were calculated for oxidative stress. We determined the cytotoxic activity of BA on Jurkat cells by using XTT and defined the IC50 concentration (802.7 μg/mL) of BA. The findings clearly show that BA inhibited Jurkat cell proliferation dose-dependently. BA induced apoptosis through downregulated anti-apoptotic genes, and upregulated pro-apoptotic genes. Additionally, we found that BA significantly reduced the expression of miR-21 (p<0.001). Our findings demonstrated that different doses of BA increased TAS levels while decreasing TOS levels in Jurkat cells. Our study suggests that BA might be potential anti-cancer agent candidate in ALL via inhibition of cell proliferation, induced apoptosis, and reducing the amounts of anti-oxidants in cells.
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Affiliation(s)
- Büşra Hilal
- Faculty of Medicine, Izmir Katip Celebi University, Izmir, Turkey
| | - Aslı Eldem
- Faculty of Medicine, Department of Medical Biology, Izmir Katip Celebi University, Izmir, Turkey
| | - Tuba Oz
- Faculty of Medicine, Department of Medical Biology, Izmir Katip Celebi University, Izmir, Turkey
| | - Melek Pehlivan
- Vocational School of Health Services, Izmir Katip Celebi University, Izmir, Turkey.
| | - Ibrahim Pirim
- Faculty of Medicine, Department of Medical Biology, Izmir Katip Celebi University, Izmir, Turkey
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Bayram D, Özgöçmen M, Çelik DA, Sarman E, Sevimli M. Does Boric Acid Inhibit Cell Proliferation on MCF-7 and MDA-MB-231 Cells in Monolayer and Spheroid Cultures by Using Apoptosis Pathways? Biol Trace Elem Res 2024; 202:2008-2021. [PMID: 37572183 DOI: 10.1007/s12011-023-03810-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 08/07/2023] [Indexed: 08/14/2023]
Abstract
Most breast cancers originate in the lobules or ducts of the breast. Breast cancer as the second main cause of death among women in the world is the most common kind of cancer in women. Studies have been conducted to find the optimal treatment for breast cancer. Moreover, the therapeutic effects of different drugs and substances on this disease have been intensively researched. Boric acid accounts for 96% of the boron content in body fluids, and its derivatives are absorbed by the human body. It is assumed to be represented as (B(OH)2). Experimental studies have shown a reduction of cell proliferation and stimulation of apoptosis in some melanoma, prostate, and colon cancer cell lines through boric acid. The aim of this study was to investigate if boric acid could be used for treating breast cancer. The impacts of boric acid on the human breast carcinoma cell lines MCF-7 and MDA-MB-231 were studied with TUNEL, BrdU, caspase-3, and endo-G immunohistochemical studies in 3D and 2D culture systems. Furthermore, we conducted a qRT-PCR study to show changes in the expression of some genes involved in apoptosis. Suppression of cell proliferation through boric acid-inducing apoptosis was observed both in 3D and 2D culture conditions. These results are compatible with the gene expression results. The ENDOG, CASP3, CASP8, and CASP9 gene expression significantly changed at all time intervals in MCF-7 and MD-MB-231 cell lines boric acid can potentially treat breast cancer as an anti-cancer agent candidate.
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Affiliation(s)
- Dilek Bayram
- Department of Histology and Embryology, Faculty of Medicine, Süleyman Demirel University, Isparta, Turkey.
| | - Meltem Özgöçmen
- Department of Histology and Embryology, Faculty of Medicine, Süleyman Demirel University, Isparta, Turkey
| | - Dilek Aşcı Çelik
- Department of Medical Biology, Faculty of Medicine, Süleyman Demirel University, Isparta, Turkey
| | - Emine Sarman
- Department of Histology and Embryology, Faculty of Medicine, Afyonkarahisar Health Sciences University, Afyon, Turkey
| | - Murat Sevimli
- Department of Histology and Embryology, Faculty of Medicine, Süleyman Demirel University, Isparta, Turkey
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Paties Montagner G, Dominici S, Piaggi S, Pompella A, Corti A. Redox Mechanisms Underlying the Cytostatic Effects of Boric Acid on Cancer Cells-An Issue Still Open. Antioxidants (Basel) 2023; 12:1302. [PMID: 37372032 DOI: 10.3390/antiox12061302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/05/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
Boric acid (BA) is the dominant form of boron in plasma, playing a role in different physiological mechanisms such as cell replication. Toxic effects have been reported, both for high doses of boron and its deficiency. Contrasting results were, however, reported about the cytotoxicity of pharmacological BA concentrations on cancer cells. The aim of this review is to briefly summarize the main findings in the field ranging from the proposed mechanisms of BA uptake and actions to its effects on cancer cells.
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Affiliation(s)
- Giulia Paties Montagner
- Department of Translational Research NTMS, University of Pisa Medical School, 56126 Pisa, Italy
| | - Silvia Dominici
- Department of Translational Research NTMS, University of Pisa Medical School, 56126 Pisa, Italy
| | - Simona Piaggi
- Department of Translational Research NTMS, University of Pisa Medical School, 56126 Pisa, Italy
| | - Alfonso Pompella
- Department of Translational Research NTMS, University of Pisa Medical School, 56126 Pisa, Italy
| | - Alessandro Corti
- Department of Translational Research NTMS, University of Pisa Medical School, 56126 Pisa, Italy
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Wei Y, Yi JK, Chen J, Huang H, Wu L, Yin X, Wang J. Boron attenuated diethylnitrosamine induced hepatocellular carcinoma in C3H/HeN mice via alteration of oxidative stress and apoptotic pathway. J Trace Elem Med Biol 2022; 74:127052. [PMID: 35952449 DOI: 10.1016/j.jtemb.2022.127052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 08/02/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND Reactive oxygen species (ROS) regulate various cellular signaling pathways and play an important role in the occurrence and development of hepatocellular carcinoma (HCC). Excessive accumulation of ROS can promote HCC. Trace element boron has a wide range of biological effects, including anti-oxidation, anti-tumor, immune regulation and so on. METHODS In this study, we investigated the anticancer effects of Sodium tetraborate decahydrate (NaB) in improving oxidative stress and regulating apoptosis in mouse HCC. HCC was induced by intraperitoneal injection of diethylnitrosamine (DEN) 25 mg/kg once at the age of 2 weeks and 100 mg/kg again at the age of 6 weeks in healthy C3H/HeN male mice. At 8 weeks of age, different concentrations of NaB were given intragastric treatment once a day for 20 weeks. Oxidative stress markers, antioxidant status and liver enzyme analysis were detected to evaluate the effectiveness of NaB in inhibiting cancer induction. The anticancer properties of NaB were confirmed by observing the liver index and morphology, and analyzing the expression of apoptotic genes and proteins. Our results showed that boron significantly reduced the production of ROS, and down-regulated the expression of the anti-apoptotic protein Bcl2 and up-regulated the expression of the pro-apoptotic proteins P53, Bax, and caspase 3. CONCLUSION Boron has great potential to reduce the effects of oxidative stress, which may help it inhibit the progression of HCC.
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Affiliation(s)
- Ying Wei
- Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Shiyan, Hubei 442008, China
| | - Jin-Ke Yi
- Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Rehabilitation department, Shiyan, Hubei 442008, China
| | - Jun Chen
- Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Shiyan, Hubei 442008, China
| | - Huimin Huang
- Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Shiyan, Hubei 442008, China
| | - Lun Wu
- Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Shiyan, Hubei 442008, China
| | - Xufeng Yin
- Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Children's Medical Center, Shiyan, Hubei 442008, China.
| | - Jinjin Wang
- Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Shiyan, Hubei 442008, China.
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Kahraman E, Göker E. Boric acid exert anti-cancer effect in poorly differentiated hepatocellular carcinoma cells via inhibition of AKT signaling pathway. J Trace Elem Med Biol 2022; 73:127043. [PMID: 35868168 DOI: 10.1016/j.jtemb.2022.127043] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 05/31/2022] [Accepted: 07/15/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND The possible anti-cancer properties of boron, a trace element for humans, have been demonstrated in various experimental and epidemiological studies, although the effects of boron on liver cancer are unclear. In the present study we evaluate the effects of boric acid on the cell lines of hepatocellular carcinoma (HCC) of the liver, as the leading form of liver cancer, for which a poorly-differentiated HCC cell line (Mahlavu cell line) was used. METHODS The anti-cancer effect of boric acid was investigated with a cell viability assay, apoptosis analysis, cell migration analysis, cell morphology analysis, colony formation assay and 3D cell culture techniques. Also, the effect of boric acid on the AKT signaling pathway was determined through a western blot analysis. RESULTS Boric acid was found to reduce cell viability in a dose- and time-dependent manner, and decreased survival, colony formation ability, migration capability and HCC cell tumor spheroid growth in HCC cell lines, while also inducing apoptosis, autophagy and morphological alteration. Furthermore, boric acid inhibited AKT phosphorylation, and anticancer biological responses in HCC cells were observed only in cells in which AKT phosphorylation was suppressed by boric acid. CONCLUSION Our results suggest that boric acid might be a promising therapeutic candidate in hepatocellular carcinoma via the inhibition of AKT signaling pathway.
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Affiliation(s)
- Erkan Kahraman
- Ege University, Research and Application Center of Individualized Medicine, Izmir, Turkey; Ege University, Atatürk Vocational School of Health Services, Izmir, Turkey.
| | - Erdem Göker
- Ege University, Research and Application Center of Individualized Medicine, Izmir, Turkey; Ege University, Faculty of Medicine, Medical Oncology, Izmir, Turkey.
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Sevimli M, Bayram D, Özgöçmen M, Armağan I, Semerci Sevimli T. Boric acid suppresses cell proliferation by TNF signaling pathway mediated apoptosis in SW-480 human colon cancer line. J Trace Elem Med Biol 2022; 71:126958. [PMID: 35219976 DOI: 10.1016/j.jtemb.2022.126958] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 02/18/2022] [Indexed: 12/26/2022]
Abstract
BACKGROUND/AIM Colon cancer is one of the most common cancers. Treatment success and survival rates are not high enough with current approaches. Therefore, there is a need to develop new agents and treatment methods. Boric acid is the most frequently observed form of boron. Some epidemiological data suggest that environmental exposure to boric acid reduces the incidence of prostate cancer in men, cervical and lung cancers in women. Experimental studies show, boric acid reduces cell proliferation and stimulates apoptosis in some prostate, melanoma, breast cancer cell lines. In this study, it was investigated whether boric acid could be a new candidate molecule that could be used in the treatment of colon cancer. MATERIALS AND METHODS The effects of boric acid on human colon adenocarcinoma cell line SW-480 were investigated with BrdU, TUNEL, Caspase-3, and AIF immunohistochemical studies in both 2D and 3D culture systems. In addition, a qRT-PCR study was carried out to determine the expression changes in key genes that take part in apoptosis. RESULTS We observed that boric acid suppresses cell proliferation and induces apoptosis both in 2D and 3D culture conditions. In addition, as a result of qRt-PCR studies, it was revealed that the observed apoptotic process was related to the TNF signaling pathway. CONCLUSION Boric acid can be considered as a potential anti-cancer agent candidate for colon cancer treatment. DATA AVAILABILITY All data generated or analyzed during this study are included in this published article.
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Affiliation(s)
- Murat Sevimli
- Suleyman Demirel University, Faculty of Medicine, Department of Histology and Embryology, Isparta, Turkey.
| | - Dilek Bayram
- Suleyman Demirel University, Faculty of Medicine, Department of Histology and Embryology, Isparta, Turkey
| | - Meltem Özgöçmen
- Suleyman Demirel University, Faculty of Medicine, Department of Histology and Embryology, Isparta, Turkey
| | - Ilkay Armağan
- Suleyman Demirel University, Faculty of Medicine, Department of Histology and Embryology, Isparta, Turkey
| | - Tuğba Semerci Sevimli
- Eskisehir Osmangazi University, Institue of Health Sciences, Department of Stem Cell, Eskisehir, Turkey; Eskisehir Osmangazi University, Cellular Therapy and Stem Cell Production Application and Research Center (ESTEM), Eskisehir, Turkey
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Kisacam MA, Ambarcioglu P, Yakan A. Calcium fructoborate regulate colon cancer (Caco-2) cytotoxicity through modulation of apoptosis. J Biochem Mol Toxicol 2022; 36:e23021. [PMID: 35174920 DOI: 10.1002/jbt.23021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 01/14/2022] [Accepted: 01/21/2022] [Indexed: 11/09/2022]
Abstract
Sugar-borate esters have recently been reported to have anti-cancer potential. Among the sugar-borate esters, calcium fructoborate (CaFB) possesses beneficial effects on human health. Despite the beneficial effects of CaFB, there is a lack of knowledge about their mode of action in cancer. The potential cytotoxic effects of CaFB were investigated on colon cancer cells (Caco-2). The mode of action was determined through the evaluation of Fyn and Hck expression levels together with Bcl-2, Bax, and PI3K/Akt pathway proteins. CaFB treatment was found to be most effective on Caco-2 cells at 10 mM concentration for 24 h. Decreased Bcl-2 levels and increased Bax levels at 10 mM were evaluated as an indicator of apoptotic effects of CaFB. Akt, p70S6K, and 4EBP1 levels, in general, tend to decrease following CaFB, while PTEN and TSC2 levels have been found to increase. Furthermore, CaFB upregulated Hck expression and downregulated Fyn expression. In conclusion, our results indicated that CaFB treatment at 10 mM concentration, the IC50 dose found in our study, might prevent colon cancer cell proliferation both by inducing apoptosis and presumably by activating autophagy.
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Affiliation(s)
- Mehmet A Kisacam
- Department of Biochemistry, Faculty of Veterinary Medicine, Hatay Mustafa Kemal University, Hatay, Turkey.,Technology and Research & Development Center (MARGEM), Hatay Mustafa Kemal University, Antakya, Hatay, Turkey
| | - Pinar Ambarcioglu
- Department of Biostatistics, Faculty of Veterinary Medicine, Hatay Mustafa Kemal University, Hatay, Turkey
| | - Akin Yakan
- Technology and Research & Development Center (MARGEM), Hatay Mustafa Kemal University, Antakya, Hatay, Turkey.,Department of Genetics, Faculty of Veterinary Medicine, Hatay Mustafa Kemal University, Hatay, Turkey
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Cabus U, Secme M, Kabukcu C, Cil N, Dodurga Y, Mete G, Fenkci IV. Boric acid as a promising agent in the treatment of ovarian cancer: Molecular mechanisms. Gene 2021; 796-797:145799. [PMID: 34175401 DOI: 10.1016/j.gene.2021.145799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 05/10/2021] [Accepted: 06/22/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE The aim of this study is to determine the therapeutic effects of boric acid cell proliferation, invasion, migration, colony formation, cell cycle and apoptosis mechanisms in ovarian cancer cell line under in vitro conditions. METHODS MDAH-2774 ovarian cancer cells were employed. Real-time PCR test was used to investigate changes in genes and proteins of cell cycle and apoptosis and identified miRNAs under the addition of boric acid. The apoptosis rates were calculated by TUNEL assay. Matrigel invasion, colony formation and Wound healing tests were used to determine invasion and migration. Oxidative stress index value was calculated for oxidative stress. RESULTS Boric acid inhibited cell proliferation, invasion, migration and colony formation, but induces apoptosis and oxidative stress. Also, the expression of miRNA-21, miRNA-200a, miRNA-130a and mi-RNA-224 (which are indicators of poor prognosis of ovarian cancer) decreased significantly. CONCLUSION The potential of boric acid as a natural molecule may supports its effectiveness in reducing adverse effects arising from conventional ovarian cancer treatments.
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Affiliation(s)
- Umit Cabus
- Department of Obstetrics and Gynecology, Faculty of Medicine, Pamukkale University, Denizli, Turkey.
| | - Mucahit Secme
- Department of Medical Biology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Cihan Kabukcu
- Department of Obstetrics and Gynecology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Nazli Cil
- Department of Histology and Embryology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Yavuz Dodurga
- Department of Medical Biology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Gulcin Mete
- Department of Histology and Embryology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Ibrahim Veysel Fenkci
- Department of Obstetrics and Gynecology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
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Hadrup N, Frederiksen M, Sharma AK. Toxicity of boric acid, borax and other boron containing compounds: A review. Regul Toxicol Pharmacol 2021; 121:104873. [PMID: 33485927 DOI: 10.1016/j.yrtph.2021.104873] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 01/06/2021] [Accepted: 01/18/2021] [Indexed: 01/14/2023]
Abstract
Boron, often in the form of boric acid, is widely used as a flame retardant in insulation products, and although humans ingest boron through food, high exposure may lead to unwanted health effects. We assessed the toxicity of boric acid, borax and other forms of boron, after inhalation, dermal and oral exposure. After oral exposure, boron is absorbed over the gastrointestinal tract. Intact skin seems to pose a more effective barrier to boron than compromised skin. Boron excretion seems to mainly occur via the urine, although after skin exposure boron has been demonstrated in bile and gastrointestinal contents. Inhalation toxicity data are sparse, but one animal study showed reduced foetal weight after inhalation of cellulose that had a boric acid content of 20%. Skin exposure to boric acid has proven fatal in some cases, and the range of toxicity effects include abdominal as well as local effects on the skin. Fatalities from boric acid also have occurred after oral ingestion, and the endpoints in animals are weight loss and reproductive toxicity. Concerning genotoxicity studies, the overall picture indicates that boron-containing compounds are not genotoxic. There was no evidence of the carcinogenicity of boric acid in a 2-year study in mice.
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Affiliation(s)
- Niels Hadrup
- National Research Centre for the Working Environment, Copenhagen, DK, 2100, Denmark.
| | - Marie Frederiksen
- National Research Centre for the Working Environment, Copenhagen, DK, 2100, Denmark
| | - Anoop K Sharma
- Division for Risk Assessment and Nutrition, Group for Chemical Risk Assessment and GMO, National Food Institute, Technical University of Denmark, Denmark.
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Tombuloglu A, Copoglu H, Aydin-Son Y, Guray NT. In vitro effects of boric acid on human liver hepatoma cell line (HepG2) at the half-maximal inhibitory concentration. J Trace Elem Med Biol 2020; 62:126573. [PMID: 32534377 DOI: 10.1016/j.jtemb.2020.126573] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 05/18/2020] [Accepted: 05/26/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND Boron is a prominent part of the human diet and one of the essential trace elements for humans. Dietary boron is mostly transformed into boric acid within the body and has been associated with desirable health outcomes. Non-dietary resources of boron, such as boron-based drugs and occupational exposure, might lead to excessive boron levels in the blood and provoke health adversities. The liver might be particularly sensitive to boron intake with ample evidence suggesting a relation between boron and liver function, although the underlying molecular processes remain largely unknown. METHODS In order to better understand boron-related metabolism and molecular mechanisms associated with a cytotoxic level of boric acid, the half-maximal inhibitory concentration (IC50) of boric acid for the hepatoma cell line (HepG2) was determined using the XTT assay. Cellular responses followed by boric acid treatment at this concentration were investigated using genotoxicity assays and microarray hybridizations. Enrichment analyses were carried out to find out over-represented biological processes using the list of differentially expressed genes identified within the gene expression analysis. RESULTS DNA breaks were detected in HepG2 cells treated with 24 mM boric acid, the estimated IC50-level of boric acid. On the other hand, pleiotropic transcriptomic effects, including cell cycle arrest, DNA repair, and apoptosis as well as altered expression of Phase I and Phase II enzymes, amino acid metabolism, and lipid metabolism were discerned in microarray analyses. CONCLUSION HepG2 cells treated with a growth-inhibitory concentration of boric acid for 24 h exhibited a senescence-like transcriptomic profile along with DNA damage. Further studies might help in understanding the concentration-dependent effects and mechanisms of boric acid.
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Affiliation(s)
- Aysegul Tombuloglu
- Middle East Technical University, Graduate School of Informatics, Health Informatics Department, Ankara, Turkey
| | - Hulya Copoglu
- Middle East Technical University, Graduate School of Arts and Sciences, Department of Biological Sciences, Ankara, Turkey
| | - Yesim Aydin-Son
- Middle East Technical University, Graduate School of Informatics, Health Informatics Department, Ankara, Turkey
| | - N Tulin Guray
- Middle East Technical University, Graduate School of Arts and Sciences, Department of Biological Sciences, Ankara, Turkey.
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Alak G, Özgeriş FB, Yeltekin AÇ, Parlak V, Ucar A, Caglar O, Turkez H, Atamanalp M. Hematological and Hepatic Effects of Ulexite in Zebrafish. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2020; 80:103496. [PMID: 32947019 DOI: 10.1016/j.etap.2020.103496] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 08/28/2020] [Accepted: 09/11/2020] [Indexed: 06/11/2023]
Abstract
The ulexite (UX), a borate mineral, is used as boron source and commonly used in various industrial processes. The hematological and hepatic effects of UX were investigated by exposing adult zebrafish to UX (5, 10, 20 and 40 mg/L) over 96 hours. The blood and liver tissues were taken at the end of the trial period then micronucleus (MN) rates, oxidative DNA damage (8-OHdG), apoptosis (Caspase-3), superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), myeloperoxidase (MPO), paraoxonase (PON), arylesterase (AR) and lipid peroxidation (MDA) levels were determined. Genotoxic damage by UX occurred only at 40 mg/L in the blood MN assay. Oxidative stress, oxidative DNA damage and apoptosis in liver also occurred at this dose. Moreover, 5-20 mg/L doses led to decreases of DNA damage and apoptosis levels via promoting antioxidant system in liver tissues. UX exhibits beneficial roles on blood and liver tissues of zebrafish at relatively lower doses, which may be relevant to nutritional and medicinal industries.
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Affiliation(s)
- Gonca Alak
- Department of Aquaculture, Faculty of Fisheries, Ataturk University, TR-25030 Erzurum, Turkey.
| | - Fatma Betül Özgeriş
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Ataturk University, TR-25030 Erzurum, Turkey
| | - Aslı Çilingir Yeltekin
- Department of Chemistry, Faculty of Science, University of Yuzuncu Yıl, TR-65080, Van, Turkey
| | - Veysel Parlak
- Department of Aquaculture, Faculty of Fisheries, Ataturk University, TR-25030 Erzurum, Turkey
| | - Arzu Ucar
- Department of Aquaculture, Faculty of Fisheries, Ataturk University, TR-25030 Erzurum, Turkey
| | - Ozge Caglar
- Department of Molecular Biology and Genetics, Faculty of Science, Erzurum Technical University, TR-25240 Erzurum, Turkey
| | - Hasan Turkez
- Department of Medical Biology, Faculty of Medicine, Ataturk University, TR-25030 Erzurum, Turkey
| | - Muhammed Atamanalp
- Department of Aquaculture, Faculty of Fisheries, Ataturk University, TR-25030 Erzurum, Turkey.
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Oyeyinka BO, Afolayan AJ. Potentials of Musa Species Fruits against Oxidative Stress-Induced and Diet-Linked Chronic Diseases: In Vitro and In Vivo Implications of Micronutritional Factors and Dietary Secondary Metabolite Compounds. Molecules 2020; 25:E5036. [PMID: 33142997 PMCID: PMC7663138 DOI: 10.3390/molecules25215036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/10/2020] [Accepted: 09/23/2020] [Indexed: 12/12/2022] Open
Abstract
Nutritional quality and the well-being of the body system are directly linked aspects of human survival. From the unborn foetus to adulthood, the need for sustainable access to micronutrient-rich foods is pertinent and the global consumption of banana and plantain fruits, in effect, contributes to the alleviation of the scourge of malnutrition. This review is particularly aimed at evaluating the pharmacological dimensions through the biological mechanisms of Musa fruits in the body, which represent correlations with their constituent micronutrient factors and dietary polyphenolic constituents such as minerals, vitamin members, anthocyanins, lutein, α-,β- carotenes, neoxanthins and cryptoxanthins, epi- and gallo catechins, catecholamines, 3-carboxycoumarin, β-sitosterol, monoterpenoids, with series of analytical approaches for the various identified compounds being highlighted therein. Derivative value-products from the compartments (flesh and peel) of Musa fruits are equally highlighted, bringing forth the biomedicinal and nutritional relevance, including the potentials of Musa species in dietary diversification approaches.
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Affiliation(s)
| | - Anthony Jide Afolayan
- Medicinal Plants and Economic Development (MPED) Research Centre, Department of Botany, University of Fort Hare, Alice 5700, South Africa;
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KORKMAZ M, ÇELİK B, ERSÖZ E. Investigation of the therapy potential of borax pentahydrate in glioblastoma multiforme cell line. ACTA ACUST UNITED AC 2020. [DOI: 10.30728/boron.589644] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Białek M, Czauderna M, Krajewska K, Przybylski W. Selected physiological effects of boron compounds for animals and humans. A review. JOURNAL OF ANIMAL AND FEED SCIENCES 2019. [DOI: 10.22358/jafs/114546/2019] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Emanet M, Sen Ö, Taşkin IÇ, Çulha M. Synthesis, Functionalization, and Bioapplications of Two-Dimensional Boron Nitride Nanomaterials. Front Bioeng Biotechnol 2019; 7:363. [PMID: 31921797 PMCID: PMC6915082 DOI: 10.3389/fbioe.2019.00363] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 11/12/2019] [Indexed: 11/23/2022] Open
Abstract
Two-dimensional boron nitride nanostructures (2D-BNNs) have been increasingly investigated for their applications in several scientific and technological areas. This considerable interest is due to their unique physicochemical properties, which include high hydrophobicity, heat and electrical insulation, resistance to oxidation, antioxidation capacity, thermal conductivity, high chemical stability, mechanical strength, and hydrogen storage capacity. They are also used as fillers, antibacterial agents, protective coating agents, lubricants, boron neutron capture therapy agents, nanocarriers for drug delivery, and for the receptor phase in chemosensors. The investigations for their use in medicine and biomedicine are very promising, including cancer therapy and wound healing. In this review, 2D-BNNs synthesis and their surface modification strategies, biocompatibility, and bioapplication studies are discussed. Finally, a perspective for the future use of these novel nanomaterials in the biomedical field is provided.
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Affiliation(s)
| | | | | | - Mustafa Çulha
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey
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Krishnan BB, Selvaraju S, Gowda NKS, Subramanya KB, Pal D, Archana SS, Bhatta R. Dietary boron supplementation enhances sperm quality and immunity through influencing the associated biochemical parameters and modulating the genes expression at testicular tissue. J Trace Elem Med Biol 2019; 55:6-14. [PMID: 31345367 DOI: 10.1016/j.jtemb.2019.05.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Revised: 05/03/2019] [Accepted: 05/08/2019] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Dietary boron improves immune and antioxidant status and calcium metabolism in mammals. However, till date the effects of dietary boron supplementation on male reproduction, especially on sperm production and sperm quality in farm animals are not documented. OBJECTIVE The present study was aimed to investigate the influence of dietary boron on semen production, semen quality, immunity and molecular changes in the testis, blood and seminal plasma and to assess the interrelationship with other minerals in male goats. METHODOLOGY The study was conducted in 21 adult male goats divided into 3 groups (control, boron and selenium supplemented groups, n = 7 each). In boron group, boron was supplemented at 40 ppm and in selenium group, selenium was supplemented at 1 ppm over and above the basal level. In control group, only the basal diet was fed without supplementary boron or selenium. The feeding trial was carried out for 60 days. Selenium was taken as a positive control for the dietary boron supplementation experiment. Following feeding trials, the sperm concentration, kinematics and functional attributes, immunity and molecular level changes in the testis, biomolecular changes in the blood and seminal plasma and also interrelationship with other minerals were studied. RESULTS The average sperm concentration (million/ml) and the total sperm production (million/ejaculate) were significantly (p < 0.05) increased in boron supplemented group when compared to selenium and control groups. The boron levels in blood plasma (r = 0.65) and seminal plasma (r = 0.54) showed a positive correlation with sperm progressive motility. Blood and seminal plasma metabolic biomarker namely, aspartate aminotransferase (AST) (p < 0.01) was significantly lower in the boron and selenium supplemented group than control, while alanine aminotransferase (ALT) (p < 0.05) was significantly lower in the boron supplemented group than selenium and control group. There was a significant increase in the mRNA expression of serine proteinase inhibitor (SERPIN) and interferon γ (IFNγ) in the testis of boron supplemented than the control group. Boron supplementation up-regulated the immune-regulatory gene, interleukin 2 (IL2) and antioxidant gene, catalase (CAT) in the peripheral blood mononuclear cells (PBMC). On contrary, toll-like receptor 2 (TLR2) mRNA expression was significantly (p < 0.05) down-regulated in boron and selenium supplemented groups. CONCLUSION The study revealed that dietary boron supplementation increased the sperm output, sperm motility and enhanced the immune and antioxidant defense capacity in male goats. The improved semen quality can be attributed to enhanced expression of testicular SERPIN, a crucial protein for the regulation of spermatogenesis process.
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Affiliation(s)
- Binsila B Krishnan
- Reproductive Physiology Laboratory, Animal Physiology Division, Indian Council of Agricultural Research-National Institute of Animal Nutrition and Physiology, Bengaluru 560 030, India.
| | - Sellappan Selvaraju
- Reproductive Physiology Laboratory, Animal Physiology Division, Indian Council of Agricultural Research-National Institute of Animal Nutrition and Physiology, Bengaluru 560 030, India
| | - Nisarani Kollurappa Shivakumar Gowda
- Micronutrient Laboratory, Animal Nutrition Division, Indian Council of Agricultural Research-National Institute of Animal Nutrition and Physiology, Bengaluru 560 030, India
| | - Karthik Bhat Subramanya
- Micronutrient Laboratory, Animal Nutrition Division, Indian Council of Agricultural Research-National Institute of Animal Nutrition and Physiology, Bengaluru 560 030, India
| | - Dintaran Pal
- Micronutrient Laboratory, Animal Nutrition Division, Indian Council of Agricultural Research-National Institute of Animal Nutrition and Physiology, Bengaluru 560 030, India
| | - Santhanahalli Siddalingappa Archana
- Reproductive Physiology Laboratory, Animal Physiology Division, Indian Council of Agricultural Research-National Institute of Animal Nutrition and Physiology, Bengaluru 560 030, India
| | - Raghavendra Bhatta
- Indian Council of Agricultural Research-National Institute of Animal Nutrition and Physiology, Bengaluru 560 030, India
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Başaran N, Duydu Y, Üstündağ A, Taner G, Aydin Dilsiz S, Anlar HG, Yalçin CÖ, Bacanli M, Golka K, Schwerdtle T, Bolt HM. Environmental boron exposure does not induce DNA damage in lymphocytes and buccal cells of females: DNA damage in lymphocytes and buccal cells of boron exposed females. J Trace Elem Med Biol 2019; 53:150-153. [PMID: 30910199 DOI: 10.1016/j.jtemb.2019.03.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 03/04/2019] [Accepted: 03/08/2019] [Indexed: 01/12/2023]
Abstract
Boron (B) compounds are essential for plants and animals and beneficial for humans in nutritional amounts. I animals and humans increasing evidence have shown beneficial effects on B compounds on nutrition and on antioxidant status. The genotoxic effects of environmental B exposure in women living in boron-rich and boron-poor areas was examined in this study. For this purpose, the DNA damage in the lymphocytes and buccal cells of females were assessed by Comet and micronucleus (MN) assays respectively. No significant difference was observed in the DNA damage of the lymphocytes of B exposed groups of female volunteers in Comet assay. Even buccal micronucleus (MN) frequency observed in the high exposure group was significantly lower than the low exposure group (p < 0.05). The results of this study came to the same conclusions of the previous studies that boron does not induce DNA damage even under extreme exposure conditions.
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Affiliation(s)
- Nurşen Başaran
- Hacettepe University, Faculty of Pharmacy, Department of Pharmaceutical Toxicology, Ankara, Turkey.
| | - Yalçın Duydu
- Ankara University, Faculty of Pharmacy, Department of Pharmaceutical Toxicology, Ankara, Turkey
| | - Aylin Üstündağ
- Ankara University, Faculty of Pharmacy, Department of Pharmaceutical Toxicology, Ankara, Turkey
| | - Gökçe Taner
- Bursa Technical University, Faculty of Engineering and Natural Sciences, Department of Bioengineering, Bursa, Turkey
| | - Sevtap Aydin Dilsiz
- Hacettepe University, Faculty of Pharmacy, Department of Pharmaceutical Toxicology, Ankara, Turkey
| | - Hatice Gül Anlar
- Zonguldak Bülent Ecevit University, Faculty of Pharmacy, Department of Pharmaceutical Toxicology, Zonguldak, Turkey
| | - Can Özgür Yalçin
- Karadeniz Technical University, Faculty of Pharmacy, Department of Pharmaceutical Toxicology, Trabzon, Turkey
| | - Merve Bacanli
- Hacettepe University, Faculty of Pharmacy, Department of Pharmaceutical Toxicology, Ankara, Turkey
| | - Klaus Golka
- Leibniz Research Center for Working Environment and Human Factors (IfADo), Ardey Str. 67, 44139 Dortmund, Germany
| | - Tanja Schwerdtle
- University of Potsdam, Institute of Nutritional Science, Department of Food Chemistry, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany
| | - Hermann M Bolt
- Leibniz Research Center for Working Environment and Human Factors (IfADo), Ardey Str. 67, 44139 Dortmund, Germany
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Altinoz MA, Topcu G, Elmaci İ. Boron's neurophysiological effects and tumoricidal activity on glioblastoma cells with implications for clinical treatment. Int J Neurosci 2019; 129:963-977. [PMID: 30885023 DOI: 10.1080/00207454.2019.1595618] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Purpose: To define the actions of boron on normal neurophysiology and glioblastoma growth. Materials and Methods: PubMed and other relevant databases were searched. Results: Discovery of novel boron compounds in treatment of glioblastoma is being actively investigated, but the majority of such studies is focused on the synthesis of boron compounds as sensitizers to Boron Neutron Capture Therapy (BNCT). Nonetheless, the translational functionality of boron compounds is not limited to BNCT as many boron compounds possess direct tumoricidal activity and there is substantial evidence that certain boron compounds can cross the blood-brain barrier. Moreover, boron-containing compounds interfere with several tumorigenic pathways including intratumoral IGF-I levels, molybdenum Fe-S containing flavin hydroxylases, glycolysis, Transient Receptor Potential (TRP) and Store Operated Calcium Entry (SOCE) channels. Conclusions: Boron compounds deserve to be studied further in treatment of systemic cancers and glioblastoma due to their versatile antineoplastic functions.
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Affiliation(s)
- Meric A Altinoz
- Department of Medical Biochemistry, Acibadem University , Istanbul , Turkey.,Department of Psychiatry, Maastricht University , Holland , Turkey
| | - Gulacti Topcu
- Department of Pharmacognosy & Phytochemistry Faculty of Pharmacy, Bezmialem Vakif University , Istanbul , Turkey
| | - İlhan Elmaci
- Department of Neurosurgery, Acibadem Hospital , Istanbul , Turkey
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Yıldırım H, Göker A, Demirci H, Güvenal T, Korkmaz M. A Comparative Study for Selectivity of Micronuclei in Cervical Exfoliated Cells on Chronic Boron Effects. J Cytol 2019; 36:75-78. [PMID: 30992640 PMCID: PMC6425774 DOI: 10.4103/joc.joc_185_17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Background: Cervical cancer is one of the most frequent malignancies in women. Micronucleus (MN) testing has gained popularity as a biomarker in early diagnosis of many types of cancer. Aims: This study aims to investigate the role of MN testing on early detection of cervical cancer and the effect of boron exposure on cervical cells. Settings and Design: The study population comprised women who were diagnosed to be human papillomavirus (HPV)-positive and had atypical squamous cells of undetermined significance (ASCUS) as cervical cytology in a cervical screening project. A total of 15 HPV-positive and 36 ASCUS patients were identified. Randomly selected 20 women were selected from boron-rich region (n = 10) and nonboron region (n = 10). Materials and Methods: Cervical swab specimens were dyed using Papanicolaou (PAP) and May–Grünwalds–Giemsa (MGG) techniques, and MN count in 1000 cells was performed. The results were statistically evaluated. Statistical Analysis Used: Data were analyzed using Statistical Package for the Social Sciences (SPSS) version 13. Quantitative data were presented as mean ± standard deviation. MN test scoring was compared using Mann–Whitney U-test. Results: Boron content of urine was measured to be 3.02 ± 1.45 and 0.98 ± 0.42 mg/day in boron-rich and nonboron regions, respectively. When MN counts were compared according to PAP and MGG staining in HPV- and ASCUS-positive women, there was statistically no significant difference (P > 0.05). Disregarding regions, HPV/control and HPV/ASCUS cases stained with PAP and MGG had statistically significant difference in MN count (P < 0.05). Conclusion: These findings suggest that MGG and PAP staining gives similar results with regard to MN count. On the other hand, it has been shown again that HPV induces MN and causes genomic instability.
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Affiliation(s)
- Hatice Yıldırım
- Department of Medical Biology, School of Medicine, Faculty of Health Sciences, Manisa Celal Bayar University, Manisa, Turkey
| | - Aslı Göker
- Department of Obstetrics and Gynecology, School of Medicine, Faculty of Health Sciences, Manisa Celal Bayar University, Manisa, Turkey
| | - Hülya Demirci
- Department of Midwifery, Faculty of Health Sciences, Manisa Celal Bayar University, Manisa, Turkey
| | - Tevfik Güvenal
- Department of Obstetrics and Gynecology, School of Medicine, Faculty of Health Sciences, Manisa Celal Bayar University, Manisa, Turkey
| | - Mehmet Korkmaz
- Department of Medical Biology, School of Medicine, Faculty of Health Sciences, Manisa Celal Bayar University, Manisa, Turkey
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BORON PREPARATIONS IN PSYCHIATRY AND NEUROLOGY: THEIR RISE, FALL AND RENEWED INTEREST. ACTA BIOMEDICA SCIENTIFICA 2018. [DOI: 10.29413/abs.2018-3.4.13] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The use of boron preparations (borax and boric acid) in medicine began long before their isolation in pure form. The mineral water of boron-containing sources has been historically used to treat skin diseases, to wash eyes, to disinfect wounds, etc. Also, what is of interest in the context of this article, boron-containing waters were used as calming, anti- anxiety, anticonvulsant and sleep-promoting remedy. In 1777, boric acid was first isolated from the mineral water of a healing spring source in Florence. Historically, first name of this compound was sal sedativum (“soothing salt”). However, the discovery of boron toxicity led to the cessation of its internal use. In recent decades, it has been found that boron is a microelement necessary for many metabolic processes in the body. It affects memory, cognitive functions, anxiety level, sleep, mood, regulates calcium and magnesium exchange, metabolism of vitamin D and sex steroids. It has been shown that some cases of treatment resistance to standard therapy, for example in epilepsy, anxiety and depression, are related to boron deficiency. In this regard, interest in the use of boron preparations in psychiatry and neurology, but in much smaller doses and on new scientific grounds, flared up again.
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Tepedelen BE, Korkmaz M, Tatlisumak E, Uluer ET, Ölmez E, Değerli İ, Soya E, İnan S. A Study on the Anticarcinogenic Effects of Calcium Fructoborate. Biol Trace Elem Res 2017; 178:210-217. [PMID: 28028787 DOI: 10.1007/s12011-016-0918-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Accepted: 12/19/2016] [Indexed: 10/20/2022]
Abstract
Evidences about the preventive and therapeutic effects of boron compounds on cancer have been increasing in the last years. Although calcium fructoborate (CaFB) is used as a nutritional supplement, data about its preventive and therapeutic effects on neoplastic transformations are limited. In the present study, the various concentrations of CaFB were applied to the MDA-MB-231 metastatic breast cancer cell line. First, we examined the cytotoxic effect and IC50 value of CaFB by MTT assay. For the evaluation of the DNA damage, apoptosis and metastatic potential, expression levels of ATM, pATM, PARP, p53, p-p53, caspase-3, caspase-9, and VEGF were investigated by using immunoblotting and immunohistochemical methods. Cell viability was significantly reduced at 50 μM CaFB treatment. pATM, p-p53, and caspase-9 levels increased significantly in all groups; furthermore, there was approximately 12.5-, 2.4-, and 10.7-fold increase, respectively, for 100 μM CaFB treatment. ATM and p53 levels did not change with CaFB treatment, but PARP levels significantly 2.5-fold decreased. While VEGF immunoreactivity decreased in all groups, significant increase in caspase-3 immunoreactivity was observed only in the group treated with 50 μM CaFB (p < 0,001). Our results imply that CaFB may have therapeutic potential as well as preventive benefits in cancer.
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Affiliation(s)
| | - Mehmet Korkmaz
- Department of Medical Biology, Faculty of Medicine, Celal Bayar University, 45030, Manisa, Turkey.
| | - Ertugrul Tatlisumak
- Department of Anatomy, Faculty of Medicine, Celal Bayar University, 45030, Manisa, Turkey
| | - Elgin Türköz Uluer
- Department of Histology and Embryology, Faculty of Medicine, Celal Bayar University, 45030, Manisa, Turkey
| | - Ercüment Ölmez
- Department of Medical Pharmacology, Faculty of Medicine, Celal Bayar University, 45030, Manisa, Turkey
| | - İsmail Değerli
- Department of Medical Biology, Faculty of Medicine, Celal Bayar University, 45030, Manisa, Turkey
| | - Elif Soya
- Department of Medical Biology, Faculty of Medicine, Celal Bayar University, 45030, Manisa, Turkey
| | - Sevinç İnan
- Department of Histology and Embryology, Faculty of Medicine, İzmir University of Economics, 35330, İzmir, Turkey
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Li X, Wang X, Zhang J, Hanagata N, Wang X, Weng Q, Ito A, Bando Y, Golberg D. Hollow boron nitride nanospheres as boron reservoir for prostate cancer treatment. Nat Commun 2017; 8:13936. [PMID: 28059072 PMCID: PMC5228389 DOI: 10.1038/ncomms13936] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Accepted: 11/15/2016] [Indexed: 12/01/2022] Open
Abstract
High global incidence of prostate cancer has led to a focus on prevention and treatment strategies to reduce the impact of this disease in public health. Boron compounds are increasingly recognized as preventative and chemotherapeutic agents. However, systemic administration of soluble boron compounds is hampered by their short half-life and low effectiveness. Here we report on hollow boron nitride (BN) spheres with controlled crystallinity and boron release that decrease cell viability and increase prostate cancer cell apoptosis. In vivo experiments on subcutaneous tumour mouse models treated with BN spheres demonstrated significant suppression of tumour growth. An orthotopic tumour growth model was also utilized and further confirmed the in vivo anti-cancer efficacy of BN spheres. Moreover, the administration of hollow BN spheres with paclitaxel leads to synergetic effects in the suppression of tumour growth. The work demonstrates that hollow BN spheres may function as a new agent for prostate cancer treatment. Use of soluble boron compounds in prostate cancer therapy is hampered by their short half-life time and low effectiveness. Here, the authors show that boron nitride nanospheres with controlled boron release can reduce proliferation of prostate cancer cells and inhibit tumour growth in animal models.
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Affiliation(s)
- Xia Li
- World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
| | - Xiupeng Wang
- Health Research Institute, Department of Life Science and Biotechnology, National Institute of Advanced Industrial Science and Technology (AIST), Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan
| | - Jun Zhang
- World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan.,School of Materials Science and Engineering, Hebei Key Laboratory of Boron Nitride Micro and Nano Materials, Hebei University of Technology, Tianjin 300130, China
| | - Nobutaka Hanagata
- Nanotechnology Innovation Station, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, 305-0047, Japan
| | - Xuebin Wang
- World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
| | - Qunhong Weng
- World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
| | - Atsuo Ito
- Health Research Institute, Department of Life Science and Biotechnology, National Institute of Advanced Industrial Science and Technology (AIST), Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan
| | - Yoshio Bando
- World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
| | - Dmitri Golberg
- World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
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Orenay Boyacioglu S, Korkmaz M, Kahraman E, Yildirim H, Bora S, Ataman OY. Biological effects of tolerable level chronic boron intake on transcription factors. J Trace Elem Med Biol 2017; 39:30-35. [PMID: 27908420 DOI: 10.1016/j.jtemb.2016.06.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 06/10/2016] [Accepted: 06/27/2016] [Indexed: 01/01/2023]
Abstract
The mechanism of boron effect on human transcription and translation has not been fully understood. In the current study it was aimed to reveal the role of boron on the expression of certain transcription factors that play key roles in many cellular pathways on human subjects chronically exposed to low amounts of boron. The boron concentrations in drinking water samples were 1.57±0.06mg/l for boron group while the corresponding value for the control group was 0.016±0.002mg/l. RNA isolation was performed using PAX gene RNA kit on the blood samples from the subjects. The RNA was then reverse transcribed into cDNA and analyzed using the Human Transcription Factors RT2 Profiler™ PCR Arrays. While the boron amount in urine was detected as 3.56±1.47mg/day in the boron group, it was 0.72±0.30mg/day in the control group. Daily boron intake of the boron and control groups were calculated to be 6.98±3.39 and 1.18±0.41mg/day, respectively. The expression levels of the transcription factor genes were compared between the boron and control groups and no statistically significant difference was detected (P>0.05). The data suggest that boron intake at 6.98±3.39mg/day, which is the dose at which beneficial effects might be seen, does not result in toxicity at molecular level since the expression levels of transcription factors are not changed. Although boron intake over this level will seem to increase RNA synthesis, further examination of the topic is needed using new molecular epidemiological data.
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Affiliation(s)
- Seda Orenay Boyacioglu
- Department of Medical Genetics, Faculty of Medicine, Adnan Menderes University, Aydın 09010, Turkey
| | - Mehmet Korkmaz
- Department of Medical Biology, Faculty of Medicine, Celal Bayar University, Manisa 45030, Turkey.
| | - Erkan Kahraman
- Department of Medical Biology, Faculty of Medicine, Celal Bayar University, Manisa 45030, Turkey
| | - Hatice Yildirim
- Department of Medical Biology, Faculty of Medicine, Celal Bayar University, Manisa 45030, Turkey
| | - Selin Bora
- Department of Chemistry, Faculty of Arts and Sciences, Middle East Technical University, Ankara 06800, Turkey
| | - Osman Yavuz Ataman
- Department of Chemistry, Faculty of Arts and Sciences, Middle East Technical University, Ankara 06800, Turkey
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Bolognesi C, Bonassi S, Knasmueller S, Fenech M, Bruzzone M, Lando C, Ceppi M. Clinical application of micronucleus test in exfoliated buccal cells: A systematic review and metanalysis. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2015; 766:20-31. [DOI: 10.1016/j.mrrev.2015.07.002] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 07/29/2015] [Accepted: 07/30/2015] [Indexed: 10/23/2022]
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Nikkhah S, Dolatian M, Naghii MR, Zaeri F, Taheri SM. Effects of boron supplementation on the severity and duration of pain in primary dysmenorrhea. Complement Ther Clin Pract 2015; 21:79-83. [PMID: 25906949 DOI: 10.1016/j.ctcp.2015.03.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 03/12/2015] [Accepted: 03/25/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND Primary dysmenorrhea refers to painful menstrual cramps without pelvic pathology. The condition is highly prevalent among women and exerts negative effects on their quality of life. Considering the evidence for anti-inflammatory properties of Boron, the present study aimed to determine the effects of Boron supplementation on the severity and duration of menstrual pain in female university students. METHODS This triple-blind randomized clinical trial study recruited 113 university students. The participants were matched for the severity and duration of dysmenorrhea and randomly allocated into the case and control groups (n = 58 and 55, respectively). The case group consumed 10 mg/day Boron from two days before the menstrual flow until its third day. The control group received placebo capsules (similar to those distributed among the cases). All subjects were asked to take the capsules for two consecutive menstrual cycles. Pain severity (measured on a visual analog scale) and duration (in hours) were measured at baseline and during the two cycles. RESULTS The two groups had no significant differences in the severity and duration of pain at baseline. After the intervention, however, the severity and duration of pain were significantly lower in the case group than in the control group (P < 0.05). CONCLUSION Based on our findings, Boron supplementation can reduce the severity and duration of menstrual pain through exerting anti-inflammatory effects. In order to clarify the effects of Boron on dysmenorrhea, future studies are required to measure the levels of hormones and inflammatory biomarkers.
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Affiliation(s)
- Somayeh Nikkhah
- Department of Midwifery, Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahrokh Dolatian
- Department of Midwifery, Faculty of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mohammad Reza Naghii
- Department of Nutrition, Health School, Baqiyatallah (a.s.) University of Medical Sciences, Tehran, Iran
| | - Farid Zaeri
- Department of Biostatistics, Faculty of Paramedicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Mojtaba Taheri
- Department of Surgery, Faculty of Medicine, Baqiyatallah (a.s.) University of Medical Sciences, Tehran, Iran
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Cytogenetic and oxidative alterations after exposure of cultured human whole blood cells to lithium metaborate dehydrate. Cytotechnology 2015; 68:821-7. [PMID: 25680697 DOI: 10.1007/s10616-014-9833-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Accepted: 12/01/2014] [Indexed: 10/24/2022] Open
Abstract
Boron compounds have an ability of supporting antioxidant properties in human and animal tissues. Lithium metaborate dihydrate (LiBO2·2H2O; LMD) is commonly used in nonlinear optic materials, cellular phones and pagers. But, there are limited data on the genotoxic and antioxidant effects of LMD in cultured human whole blood cells. The aim of this study was to evaluate for the genotoxicity and antioxidant/oxidant activity of LMD on human whole blood lymphocytes (n = 5). LMD was applied at various concentrations (0-1,280 µg/ml) to cultured blood samples. Antioxidant/oxidant activity was evaluated by measuring the total oxidant status (TOS) and total antioxidant capacity levels. Micronuclei and chromosomal aberration tests were used in genotoxicity studies. Our results clearly revealed that all tested concentrations of LMD were found to be non-genotoxic when compared to that of the control group. In addition, LMD exhibited antioxidant activities at low concentrations. In addition the TOS levels were not changed at all concentrations of LMD. Consequently, our results clearly demonstrated that LMD is non-genotoxic and it has an important antioxidant potential in vitro.
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Henderson KA, Kobylewski SE, Yamada KE, Eckhert CD. Boric acid induces cytoplasmic stress granule formation, eIF2α phosphorylation, and ATF4 in prostate DU-145 cells. Biometals 2014; 28:133-41. [PMID: 25425213 PMCID: PMC4300416 DOI: 10.1007/s10534-014-9809-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Accepted: 11/13/2014] [Indexed: 11/26/2022]
Abstract
Dietary boron intake is associated with reduced prostate and lung cancer risk and increased bone mass. Boron is absorbed and circulated as boric acid (BA) and at physiological concentrations is a reversible competitive inhibitor of cyclic ADP ribose, the endogenous agonist of the ryanodine receptor calcium (Ca+2) channel, and lowers endoplasmic reticulum (ER) [Ca2+]. Low ER [Ca2+] has been reported to induce ER stress and activate the eIF2α/ATF4 pathway. Here we report that treatment of DU-145 prostate cells with physiological levels of BA induces ER stress with the formation of stress granules and mild activation of eIF2α, GRP78/BiP, and ATF4. Mild activation of eIF2α and its downstream transcription factor, ATF4, enables cells to reconfigure gene expression to manage stress conditions and mild activation of ATF4 is also required for the differentiation of osteoblast cells. Our results using physiological levels of boric acid identify the eIF2α/ATF pathway as a plausible mode of action that underpins the reported health effects of dietary boron.
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Affiliation(s)
- Kimberly A. Henderson
- Interdepartmental Program in Molecular Toxicology, University of California, Los Angeles, CA USA
| | - Sarah E. Kobylewski
- Interdepartmental Program in Molecular Toxicology, University of California, Los Angeles, CA USA
| | - Kristin E. Yamada
- Interdepartmental Program in Molecular Toxicology, University of California, Los Angeles, CA USA
| | - Curtis D. Eckhert
- Interdepartmental Program in Molecular Toxicology, University of California, Los Angeles, CA USA
- Department of Environmental Health Sciences, University of California, Charles E. Young Drive, Los Angeles, CA 90095 USA
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Abstract
In vitro, animal, and human experiments have shown that boron is a bioactive element in nutritional amounts that beneficially affects bone growth and central nervous system function, alleviates arthritic symptoms, facilitates hormone action and is associated with a reduced risk for some types of cancer. The diverse effects of boron suggest that it influences the formation and/or activity of substances that are involved in numerous biochemical processes. Several findings suggest that this influence is through the formation of boroesters in biomolecules containing cis-hydroxyl groups. These biomolecules include those that contain ribose (e.g., S-adenosylmethionine, diadenosine phosphates, and nicotinamide adenine dinucleotide). In addition, boron may form boroester complexes with phosphoinositides, glycoproteins, and glycolipids that affect cell membrane integrity and function. Both animal and human data indicate that an intake of less than 1.0mg/day inhibits the health benefits of boron. Dietary surveys indicate such an intake is not rare. Thus, increasing boron intake by consuming a diet rich in fruits, vegetables, nuts and pulses should be recognized as a reasonable dietary recommendation to enhance health and well-being.
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Affiliation(s)
- Forrest H Nielsen
- U.S. Department of Agriculture, Agricultural Research Service,(1) Grand Forks Human Nutrition Research Center, Grand Forks, ND, USA.
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Utilization of Boron Compounds for the Modification of Suberoyl Anilide Hydroxamic Acid as Inhibitor of Histone Deacetylase Class II Homo sapiens. Adv Bioinformatics 2014; 2014:104823. [PMID: 25214833 PMCID: PMC4158260 DOI: 10.1155/2014/104823] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Revised: 08/12/2014] [Accepted: 08/12/2014] [Indexed: 01/26/2023] Open
Abstract
Histone deacetylase (HDAC) has a critical function in regulating gene expression. The inhibition of HDAC has developed as an interesting anticancer research area that targets biological processes such as cell cycle, apoptosis, and cell differentiation. In this study, an HDAC inhibitor that is available commercially, suberoyl anilide hydroxamic acid (SAHA), has been modified to improve its efficacy and reduce the side effects of the compound. Hydrophobic cap and zinc-binding group of these compounds were substituted with boron-based compounds, whereas the linker region was substituted with p-aminobenzoic acid. The molecular docking analysis resulted in 8 ligands with ΔGbinding value more negative than the standards, SAHA and trichostatin A (TSA). That ligands were analyzed based on the nature of QSAR, pharmacological properties, and ADME-Tox. It is conducted to obtain a potent inhibitor of HDAC class II Homo sapiens. The screening process result gave one best ligand, Nova2 (513246-99-6), which was then further studied by molecular dynamics simulations.
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Wen CH, Lin CH, Tsao SC, Su YC, Tsai MH, Chai CY. Micronucleus scoring in liver fine needle aspiration cytology. Cytopathology 2012; 24:391-5. [PMID: 22974178 DOI: 10.1111/cyt.12009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE This study evaluated the role of the micronucleus (MN) in liver fine needle aspiration (FNA) cytology. METHODS Histological features of 75 cases of hepatocellular carcinoma (HCC), of which 25 were well differentiated, 37 moderately differentiated and 13 poorly differentiated, and 58 benign hepatic lesions (total, 133 cases) were correlated with MN expression observed in FNA smears reported as benign (n =40), atypical (n = 14), suspicious (n = 30) and malignant (n =49). RESULTS Stepwise increases in the MN score (0.4 ± 0.6, 1.2 ± 1.3, 6.3 ± 4.2 and 14.8 ± 8.8) correlated with the degree of cytological abnormality: benign, atypia, suspicious and malignant, respectively. The mean MN scores for well-, moderately and poorly differentiated HCC were 5.4 ± 2.2, 11.5 ± 4.5 and 24.9 ± 9.1, respectively, which was significantly different between malignant and suspicious (P < 0.0001), between suspicious and atypical (P= 0.008) but not between atypical and benign. The MN scores differed significantly between all degrees of differentiation of HCC and between the HCC and benign hepatic lesions (P < 0.0001). High sensitivity, specificity and accuracy of liver FNA for diagnosing HCC (96%, 98%, and 96%, respectively) were obtained at a cutoff of three for the MN score. CONCLUSIONS The MN score is an effective HCC biomarker and has a good potential use as an ancillary tool for diagnosing HCC using FNA cytology.
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Affiliation(s)
- C-H Wen
- Department of Pathology, Kaohsiung Medical University Hospital, Kaohsiung, TaiwanDepartment of Pathology, Foo-Yin University Hospital, Ping-Tong Hsien, TaiwanGraduate Institute of Medicine, School of Medicine, Kaohsiung Medical University, Kaohsiung, TaiwanDepartment of Pathology, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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Cortes S, Reynaga-Delgado E, Sancha AM, Ferreccio C. Boron exposure assessment using drinking water and urine in the North of Chile. THE SCIENCE OF THE TOTAL ENVIRONMENT 2011; 410-411:96-101. [PMID: 21978616 DOI: 10.1016/j.scitotenv.2011.08.073] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2010] [Revised: 08/30/2011] [Accepted: 08/31/2011] [Indexed: 05/14/2023]
Abstract
Boron is an essential trace element for plants and humans however it is still an open question what levels of boron are actually safe for humans. This study, conducted between 2006 and 2010, measured exposure levels of boron in drinking water and urine of volunteers in Arica, an area in the North of Chile with high levels of naturally occurring boron. Samples were taken of tap and bottled water (173 and 22, respectively), as well as urine from 22 volunteers, and subsequently analyzed by inductively coupled plasma spectroscopy (ICP-OES). Boron varied in public tap water from 0.22 to 11.3mgL(-1), with a median value of 2.9mgL(-1), while concentrations of boron in bottled water varied from 0.01 to 12.2mgL(-1). Neither tap nor bottled water samples had concentrations of boron within WHO recommended limits. The concentration of boron in urine varied between 0.45 and 17.4mgL(-1), with a median of 4.28mgL(-1) and was found to be correlated with tap water sampled from the homes of the volunteers (r=0.64). Authors highly recommend that in northern Chile - where levels of boron are naturally high - that the tap and bottled water supplies be monitored in order to protect public health and that regulatory standards also be established for boron in drinking water in order to limit exposure.
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Affiliation(s)
- S Cortes
- Departamento de Salud Pública, Pontificia Universidad Católica de Chile, Santiago, Chile.
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Korkmaz M, Yenigün M, Bakırdere S, Ataman OY, Keskin S, Müezzinoğlu T, Lekili M. Effects of chronic boron exposure on semen profile. Biol Trace Elem Res 2011; 143:738-50. [PMID: 21170602 DOI: 10.1007/s12011-010-8928-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2010] [Accepted: 12/06/2010] [Indexed: 10/18/2022]
Abstract
The possible changes in semen quality were studied in men living in a boron mining area. The subjects in the boron group had exposure to boron at an average level of 6.5 mg/day, as determined by urinary analysis. The results obtained by the boron group were compared to those obtained for the control group whose subjects were living in the same geographical area but away from the boron region; average exposure level was 1.4 mg/day for this group. The semen samples were analyzed according to the recommendations of the World Health Organization. Boron levels were established in the water samples obtained from various locations in the study region. In the boron mining fields where the subjects in the boron group live, water samples contained boron in the range of 1.4-6.5 mg/L, while the values were <0.01 mg/L for the water samples obtained from the region where the subjects of the control group reside. No negative effects were found in the sperm samples obtained from the subjects of the boron group.
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Affiliation(s)
- Mehmet Korkmaz
- Department of Medical Biology, Faculty of Medicine, Celal Bayar University, 45030, Manisa, Turkey.
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Nielsen FH, Meacham SL. Growing Evidence for Human Health Benefits of Boron. J Evid Based Complementary Altern Med 2011. [DOI: 10.1177/2156587211407638] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Growing evidence from a variety of experimental models shows that boron is a bioactive and beneficial (perhaps essential) element for humans. Reported beneficial actions of boron include arthritis alleviation or risk reduction, bone growth and maintenance, central nervous system function, cancer risk reduction, hormone facilitation, and immune response, inflammation, and oxidative stress modulation. The diverse effects of boron indicate that it influences the formation and/or activity of an entity that is involved in many biochemical processes. Formation of boroesters with the ribose moiety of compounds involved in numerous reactions, such as S-adenosylmethionine and oxidized nicotinamide adenine dinucleotide (NAD+) might be the reason for boron bioactivity. Both animal and human data suggest that boron intakes should be >1.0 mg/d. Many people consume less than this amount. Thus, a low boron intake should be considered a health concern, which can be prevented by diets rich in fruits, vegetables, nuts, and pulses.
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Affiliation(s)
- Forrest H. Nielsen
- USDA, ARS, Grand Forks Human Nutrition Research Center, Grand Forks, ND, USA
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Naghii MR, Mofid M, Asgari AR, Hedayati M, Daneshpour MS. Comparative effects of daily and weekly boron supplementation on plasma steroid hormones and proinflammatory cytokines. J Trace Elem Med Biol 2011; 25:54-8. [PMID: 21129941 DOI: 10.1016/j.jtemb.2010.10.001] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2010] [Revised: 10/18/2010] [Accepted: 10/19/2010] [Indexed: 11/24/2022]
Abstract
Boron possesses widespread properties in biochemistry and nutrition. Acute supplementation with 11.6 mg of boron resulted in a significant increase in plasma boron concentration. Given such a fast bioavailability, the objective was to determine whether acute (hourly or daily), and weekly supplementation could have any significant biological effects on the steroid hormones and further on some inflammatory biomarkers. Eight healthy male volunteers attended the laboratory on three occasions (days 0, 1 and 7). On the first day (day 0), a blood sample collection at 8.00 A.M was followed by ingestion of placebo with the breakfast. On the next day (supplementation-day 1), similar procedure was followed by ingestion of a capsule containing 10mg of boron. On both occasions blood was collected every 2h for the next 6h. Subjects were requested to consume a capsule of 10mg boron every day with their breakfast, and on the day 7, the blood collection was carried out at 8.00 A.M, again. Boron in plasma increased significantly following hours and weekly consumption. Six hours supplementation showed a significant decrease on sex hormone binding globulin (SHBG), high sensitive CRP (hsCRP) and TNF-α level. After one week (in samples taken at 8.00 A.M, only), the mean plasma free testosterone increased and the mean plasma estradiol decreased significantly. Dihydrotestosterone, cortisol and vitamin D was elevated. Also, concentrations of all three inflammatory biomarkers decreased after supplementation. Of note, despite decreased proinflammatory cytokines, based on recent clinical data, this must be the first human study report to show an increase level of free testosterone after boron consumption.
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Affiliation(s)
- Mohammad Reza Naghii
- Sport Physiology Research Center, Baqiyatallah (a.s.) University of Medical Sciences, Tehran, Islamic Republic of Iran.
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Naghii MR, Mofid M. Elevation of biosynthesis of endogenous 17‐B oestradiol by boron supplementation: One possible role of dietary boron consumption in humans. ACTA ACUST UNITED AC 2009. [DOI: 10.1080/13590840802150845] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Bonassi S, Biasotti B, Kirsch-Volders M, Knasmueller S, Zeiger E, Burgaz S, Bolognesi C, Holland N, Thomas P, Fenech M. State of the art survey of the buccal micronucleus assay--a first stage in the HUMNXL project initiative. Mutagenesis 2009; 24:295-302. [DOI: 10.1093/mutage/gep019] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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Nielsen FH. Boron deprivation decreases liver S-adenosylmethionine and spermidine and increases plasma homocysteine and cysteine in rats. J Trace Elem Med Biol 2009; 23:204-13. [PMID: 19486830 DOI: 10.1016/j.jtemb.2009.03.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2008] [Revised: 01/28/2009] [Accepted: 03/05/2009] [Indexed: 11/26/2022]
Abstract
Two experiments were conducted with weanling Sprague-Dawley rats to determine whether changes in S-adenosylmethionine utilization or metabolism contribute to the diverse responses to boron deprivation. In both experiments, four treatment groups of 15 male rats were fed ground corn-casein based diets that contained an average of 0.05 mg (experiment 1) or 0.15 mg (experiment 2) boron/kg. In experiment 2, some ground corn was replaced by sucrose and fructose to increase oxidative stress. The dietary variables were supplemental 0 (boron-deprived) or 3 (boron-adequate) mg boron/kg and different fat sources (can affect the response to boron) of 75 g corn oil/kg or 65 g fish (menhaden) oil/kg plus 10 linoleic acid/kg. When euthanized at age 20 (experiment 1) and 18 (experiment 2) weeks, rats fed the low-boron diet were considered boron-deprived because they had decreased boron concentrations in femur and kidney. Boron deprivation regardless of dietary oil increased plasma cysteine and homocysteine and decreased liver S-adenosylmethionine, S-adenosylhomocysteine, and spermidine. Plasma concentration of 8-iso-prostaglandin F2alpha (indicator of oxidative stress) was not affected by boron, but was decreased by feeding fish oil instead of corn oil. Fish oil instead of corn oil decreased S-adenosylmethionine, increased spermidine, and did not affect S-adenosylhomocysteine concentrations in liver. Additionally, fish oil versus corn oil did not affect plasma homocysteine in experiment 1, and slightly increased it in experiment 2. The findings suggest that boron is bioactive through affecting the formation or utilization of S-adenosylmethionine. Dietary fatty acid composition also affects S-adenosylmethionine formation or utilization, but apparently through a mechanism different from that of boron.
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Affiliation(s)
- Forrest Harold Nielsen
- US Department of Agriculture, Agricultural Research Service, Grand Forks Human Nutrition Research Center, Grand Forks, ND 58202-9034, USA.
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Nersesyan AK. Comments to the article by Ergene et al. "Genotoxic biomonitoring study of population residing in pesticide contaminated regions in Göksu Delta: micronucleus, chromosomal aberrations and sister chromatid exchanges". ENVIRONMENT INTERNATIONAL 2008; 34:1242. [PMID: 18406461 DOI: 10.1016/j.envint.2008.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2008] [Accepted: 02/27/2008] [Indexed: 05/26/2023]
Affiliation(s)
- Armen K Nersesyan
- Environmental Toxicology Group, Institute of Cancer Research, Medical University of Vienna, Vienna, Austria.
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Abstract
Evidence from numerous laboratories using a variety of experimental models, including humans, shows that boron is a bioactive beneficial element. Much evidence has come from studies that did not require nutritional or environmental stressors or fastidious methods in diet preparation or environmental control. The evidence includes deprivation studies showing that boron is necessary for some higher animals to complete the life cycle, and that realistic low boron intakes result in impaired bone health, brain function, and immune response. Thus, low boron intake is a relevant nutritional concern, which diets rich in fruits, vegetables, nuts, and pulses can prevent.
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Affiliation(s)
- Forrest H Nielsen
- US Department of Agriculture, Agricultural Research Service, Grand Forks Human Nutrition Research Center, Grand Forks, ND 58202-9034, USA.
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Korkmaz M, Sayli U, Sayli BS, Bakirdere S, Titretir S, Yavuz Ataman O, Keskin S. Estimation of human daily boron exposure in a boron-rich area. Br J Nutr 2007; 98:571-5. [PMID: 17419890 DOI: 10.1017/s000711450770911x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Although, the safe limits of human daily boron (B) exposure are not absolutely clear, there is a growing interest in B and its effects on human health. The aim of the present study was to estimate daily B exposure in 66 males in Turkey living in a B-rich area using water containing at least 2 mg/l boron, with an average age of 38·55 (se 1·66) years and an average number of years of residence in the B-rich area of 35·89 (se 1·73). Another group of males (n 57), living in the city centres of Balıkesir and Ankara, were taken as controls; the average age and number of years of residence for this group were 29·44 (se 1·43) and 10·26 (se 1·83) years, respectively. As it is assumed that the B level in urine reflects daily B exposure, the amount of urinary B of both the study and control groups was analysed by using an inductively coupled plasma optical emission spectrometry (ICP-OES) technique. The average daily B exposure value was calculated as 6·77 (se 0·47) mg in the study group and 1·26 (se 0·1) mg in the controls. The results of this study are expected to contribute to creating a reference value for a safe daily B exposure.
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Affiliation(s)
- Mehmet Korkmaz
- Department of Medical Biology, Faculty of Medicine,Yüzüncü Yil University, 65200 Van, Turkey.
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