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Guleria M, Pallavi KJ, Gujarathi PP, Das T. Evaluation of acute intravenous toxicity of HEPES: Is Good's buffer good and safe enough for clinical utilization in nuclear medicine? Nucl Med Biol 2024; 132-133:108895. [PMID: 38493748 DOI: 10.1016/j.nucmedbio.2024.108895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 03/01/2024] [Accepted: 03/08/2024] [Indexed: 03/19/2024]
Abstract
OBJECTIVE Good's buffer or HEPES has advantages over other buffers commonly used in radiopharmaceutical preparation as it exhibits significantly lower complexation tendency with metal ions. However, use of HEPES buffer for radiolabeling reactions, meant for clinical applications, has been underrated due to the non-availability of sufficient toxicity data. The objective of the present study is to find the evidences towards safety of intravenous administration of HEPES through systemic toxicological studies in small animal model to support its safe application for clinical exploitation. EXPERIMENTAL A pilot study was performed to investigate the lethal dose of HEPES in female Sprague Dawley rats by administering seven different doses of HEPES solution (150 to 2000 mg/kg), through intravenous pathway. Similarly, for determining maximum tolerated dose (MTD), gradually increasing doses of HEPES (50 to 950 mg/kg) were administered in the same species via similar pathway. Various hematological and clinical pathological investigations were carried out in order to find out the safe administration dose of HEPES in rats. RESULTS No mortality was observed up to 2000 mg/kg doses of HEPES. The doses beyond 300 mg/kg resulted few temporary adverse effects, though these were found to disappear within 4-5 days of dosing. CONCLUSION The amount of HEPES to be administered during clinical intervention is usually much lower (typically 1-2.5 mg per kg of body weight of healthy adult) than the MTD determined in rat model during present report. Hence, the utilization of this buffer for preparation of radiolabeled drugs for human investigation may be safe. However, further detailed investigations may be warranted for supporting the candidature of Good's buffer for regular clinical exploitation.
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Affiliation(s)
- Mohini Guleria
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - K J Pallavi
- Shree Dhanvantary Pharmacy College, Kim, Surat, Gujarat 394110, India
| | | | - Tapas Das
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India.
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Han HY, Kim BK, Rho J, Park SM, Choi MS, Kim S, Heo MB, Yang YS, Oh JH, Lee TG, Yoon S. Safety assessment and gastrointestinal retention of orally administered cerium oxide nanoparticles in rats. Sci Rep 2024; 14:5657. [PMID: 38454018 PMCID: PMC10920649 DOI: 10.1038/s41598-024-54659-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 02/15/2024] [Indexed: 03/09/2024] Open
Abstract
Cerium oxide nanoparticles (CeO2 NPs, NM-212) are well-known for their catalytic properties and antioxidant potential, and have many applications in various industries, drug delivery, and cosmetic formulations. CeO2 NPs exhibit strong antimicrobial activity and can be used to efficiently remove pathogens from different environments. However, knowledge of the toxicological evaluation of CeO2 NPs is too limited to support their safe use. In this study, CeO2 NPs were orally administered to Sprague Dawley rats for 13 weeks at the doses of 0, 10, 100, and 1000 mg/kg bw/day, followed by a four week recovery period. The hematology values for the absolute and relative reticulocyte counts in male rats treated with 1000 mg/kg bw/day CeO2 NPs were lower than those in control rats. The clinical chemistry values for sodium and chloride in the treated male rat groups (100 and 1000 mg/kg/day) and total protein and calcium in the treated female rat groups (100 mg/kg/day) were higher than those in the control groups. However, these changes were not consistent in both sexes, and no abnormalities were found in the corresponding pathological findings. The results showed no adverse effects on any of the parameters assessed. CeO2 NPs accumulated in the jejunum, colon, and stomach wall of rats administered 1000 mg/kg CeO2 NPs for 90 days. However, these changes were not abnormal in the corresponding histopathological and immunohistochemical examinations. Therefore, 1000 mg/kg bw/day may be considered the "no observed adverse effect level" of CeO2 NPs (NM-212) in male and female SD rats under the present experimental conditions.
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Affiliation(s)
- Hyoung-Yun Han
- Department of Predictive Toxicology, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea.
- Department of Human and Environmental Toxicology, University of Science & Technology, Daejeon, 34113, Republic of Korea.
| | - Bo-Kyung Kim
- Jeonbuk Branch Institute, Korea Institute of Toxicology, 30 Baekhak1-gil, Jeongeup, Jeollabuk-do, 56212, Republic of Korea
| | - Jinhyung Rho
- Jeonbuk Branch Institute, Korea Institute of Toxicology, 30 Baekhak1-gil, Jeongeup, Jeollabuk-do, 56212, Republic of Korea
| | - Se-Myo Park
- Department of Predictive Toxicology, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Mi-Sun Choi
- Department of Predictive Toxicology, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Soojin Kim
- Department of Predictive Toxicology, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Min Beom Heo
- Nanosafety Metrology Center, Korea Research Institute of Standards and Science (KRISS), 267 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea
| | - Young-Su Yang
- Jeonbuk Branch Institute, Korea Institute of Toxicology, 30 Baekhak1-gil, Jeongeup, Jeollabuk-do, 56212, Republic of Korea
| | - Jung-Hwa Oh
- Department of Predictive Toxicology, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
- Department of Human and Environmental Toxicology, University of Science & Technology, Daejeon, 34113, Republic of Korea
| | - Tae Geol Lee
- Nanosafety Metrology Center, Korea Research Institute of Standards and Science (KRISS), 267 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea
| | - Seokjoo Yoon
- Department of Predictive Toxicology, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea.
- Department of Human and Environmental Toxicology, University of Science & Technology, Daejeon, 34113, Republic of Korea.
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3
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Hwang SB, Choi MJ, Lee HJ, Han JJ. Safety evaluation of vitamin K2 (menaquinone-7) via toxicological tests. Sci Rep 2024; 14:5440. [PMID: 38443482 PMCID: PMC10914784 DOI: 10.1038/s41598-024-56151-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 03/01/2024] [Indexed: 03/07/2024] Open
Abstract
This study aims to evaluate the safety of MK-7 produced by fermentation process using a Bacillus subtilis var. natto strain for human ingestion via acute oral toxicity, repeated dose 90-day oral toxicity, 28-day recovery test, and genotoxicity tests. The acute oral toxicity test results indicated that all subjects survived at the dose of 5000 mg/kg with no toxic effects. For the repeated dose 90-day oral toxicity test, MK-7 was administered to rats at 500, 1500, and 4500 mg/kg for 90 d. No abnormal findings were detected in clinical observations or in clinical pathological and histopathological examinations. The no-observed-adverse-effect level(NOAEL) was determined to be 4500 mg/kg/d, the maximum dose tested. For the evaluation of genotoxicity, reverse mutation, chromosomal aberration, and micronucleus tests were performed. In the reversion mutation test, vitamin K2 did not induce reversion in bacterial strains, and no chromosomal abnormality was observed in the chromosomal abnormality test using Chinese hamster lung cells. In the micronucleus test, micronuclei were not induced using ICR mouse bone marrow cells. All the toxicity test results suggest that vitamin K2 produced by fermentation processes using Bacillus subtilis var. natto induced no toxicological changes under the experimental conditions.
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Affiliation(s)
- Sung-Bong Hwang
- Department of Quality, GF Fermentech, Inc., Sejong, 30077, South Korea
| | - Min-Ju Choi
- Department of Quality, GF Fermentech, Inc., Sejong, 30077, South Korea
| | - Hyeon-Jeong Lee
- Department of Quality, GF Fermentech, Inc., Sejong, 30077, South Korea
| | - Jeong-Jun Han
- GF Fermentech, Inc., R&D Institute, Daejon, South Korea.
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Deng S, Shuai Y, Zhang S, Sun C, Chang L, Xu J, Tong L, Ji Q, Li M, Dai J, Ju Y. Personalized demand-responsive biphasic microneedle patch for smart drug administration. Biomater Sci 2023; 11:5605-5617. [PMID: 37404020 DOI: 10.1039/d3bm00780d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2023]
Abstract
Many patients, especially those with chronic diseases, would benefit from personalized drugs that could modulate the treatment regimen. Tailored drug delivery via microneedle patches (MNPs) has emerged as a promising technology to address this problem. However, it is still difficult to modulate the treatment regimen in one MNP. Here, multiple treatment regimens were achieved by the same MNP functionalized with modifiable nanocontainers (NCs). The MNPs were biphasic in design, resulting in approximately a twice as high drug loading capacity than that of traditional dissolving MNPs. The drug-loaded NCs could have a zero-order release rate for at least 20 d in vitro. Furthermore, three model MNPs, Type-A (100% drug), Type-B (50% drug and 50% NCs) and Type-C (100% NCs) were generated to simulate various personalized dosing needs. In vivo application of these models could achieve effective therapeutic drug concentrations in the first 12 h and adjusted the duration of effective drug action from 24 h to 96 h and 144 h, respectively, with outstanding biocompatibility. These findings indicate that this device holds significant promise for personalized drug delivery.
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Affiliation(s)
- Shuyue Deng
- College of Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
| | - Yao Shuai
- Oncology and Immunology Unit, WuXi AppTec, Nantong 226000, China
| | - Shibo Zhang
- College of Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
| | - Caixia Sun
- College of Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
| | - Lei Chang
- Department of Cellular and Molecular Medicine, University of California San Diego School of Medicine, La Jolla, CA, USA
| | - Jie Xu
- Oncology and Immunology Unit, WuXi AppTec, Nantong 226000, China
- School of Computer Science and Engineering, Central South University, Changsha 410006, China
| | - Ling Tong
- Oncology and Immunology Unit, WuXi AppTec, Nantong 226000, China
| | - Qunsheng Ji
- Oncology and Immunology Unit, WuXi AppTec, Nantong 226000, China
| | - Min Li
- School of Computer Science and Engineering, Central South University, Changsha 410006, China
| | - Jianjun Dai
- College of Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Animal Bacteriology, Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Yanmin Ju
- College of Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
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Seo HS, Kim JH, Kim SH, Park MK, Seong NW, Kang GH, Kim JS, Kim SH, Kim JC, Moon C. Toxicity of a 90-day repeated oral dose of a collagen peptide derived from skate ( Raja kenojei) skin: a rat model study. Toxicol Res 2023; 39:383-398. [PMID: 37398561 PMCID: PMC10313617 DOI: 10.1007/s43188-023-00175-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/11/2023] [Accepted: 03/02/2023] [Indexed: 03/18/2023] Open
Abstract
Collagen peptides are widely employed as therapeutic materials due to their numerous beneficial properties, including for the following uses: antiaging, antioxidant applications, antibacterial applications, wound healing, tissue engineering, medication delivery, and cosmetics. Although collagen peptides are useful in these applications, to our knowledge, few published studies have been undertaken on their repeated-dose toxicity. We evaluated the possible subchronic toxicity of a collagen peptide derived from skate (Raja kenojei) skin (CPSS) in Sprague-Dawley rats by administering repeated oral doses over 90 days. Rats of both sexes were assigned randomly to one of four experimental groups, respectively receiving 0, 500, 1000, or 2000 mg/kg/day of CPSS. At all doses tested, repeated oral CPSS administration had no treatment-related adverse effects in terms of clinical signs, body weight, food consumption, detailed clinical observation, sensory reactivity, functional assessment, urinalysis, ophthalmic examination, gross pathology, hematology, serum biochemistry, hormone analysis, organ weight, and histopathology. Even though there were some alterations in hematologic parameters, serum biochemistry parameters, organ weight, and histopathological findings, these did not follow a dose-response pattern and were within historical limits for control rats. The oral no-observed-adverse-effect level (NOAEL) of the CPSS was 2000 mg/kg/day for both male and female rats in the applied experimental circumstances, and no target organs were identified.
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Affiliation(s)
- Heung-Sik Seo
- Health Care Institute, Korea Testing and Research Institute, Hwasun, Jeonnam, Republic of Korea
- College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Jun-Ho Kim
- Health Care Institute, Korea Testing and Research Institute, Hwasun, Jeonnam, Republic of Korea
| | - Sang-Ho Kim
- Health Care Institute, Korea Testing and Research Institute, Hwasun, Jeonnam, Republic of Korea
| | - Myeong-Kyu Park
- Health Care Institute, Korea Testing and Research Institute, Hwasun, Jeonnam, Republic of Korea
| | - Nak-Won Seong
- Health Care Institute, Korea Testing and Research Institute, Hwasun, Jeonnam, Republic of Korea
| | | | - Joong-Sun Kim
- College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Sung-Ho Kim
- College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Jong-Choon Kim
- College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
- College of Veterinary Medicine and BK21 FOUR Program, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, 61186 Republic of Korea
| | - Changjong Moon
- College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
- College of Veterinary Medicine and BK21 FOUR Program, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, 61186 Republic of Korea
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Kim SY, Kwak KW, Park JY, Park ES, Nam CJ, An KS, Kim HJ, Yoon HJ, Kim YS, Park K, Kim E, Ryu HY, Kim SD. Evaluation of subchronic oral dose toxicity and allergen of freeze-dried powder of Locusta migratoria (Orthoptera: Acrididae) as a novel food source. Toxicol Res 2023; 39:317-331. [PMID: 37008697 PMCID: PMC10050243 DOI: 10.1007/s43188-023-00171-7] [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: 10/12/2022] [Revised: 01/19/2023] [Accepted: 02/01/2023] [Indexed: 02/19/2023] Open
Abstract
The migratory locust, Locusta migratoria (Orthoptera: Acrididae), is a well-known edible insect which may serve as new source of human food and animal feed. However, potential toxicity and food safety of L. migratoria had not been investigated extensively until now. Therefore, in this study, we aimed to investigate toxicity of freeze-dried powder of L. migratoria (fdLM) and identify allergic components in ELISA and PCR techniques. In this subchronic study, fdLM was administered once daily by oral gavage at the doses of 750, 1500, and 3000 mg/kg/day. No toxicological changes were observed in both sexes of rats for 13 weeks in accordance with the OECD guidelines and GLP conditions. In addition, fdLM did not induced increases of serum immunoglobulin E and 21 homologous proteins were not detected under our present conditions. In conclusion, the NOAEL (no-observed-adverse-effect level) was 3000 mg/kg/day and no target organ was identified in both sexes. In conclusion, we found that fdLM is safe with no adverse effects and offers the potential of its use as an edible ingredient or other biological uses.
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Affiliation(s)
- Sun Young Kim
- Industrial Insect Division, Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju, 55365 Republic of Korea
| | - Kyu-Won Kwak
- Industrial Insect Division, Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju, 55365 Republic of Korea
| | - Ji Yeong Park
- Industrial Insect Division, Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju, 55365 Republic of Korea
| | - Eun-Sung Park
- Headquarters of GLP, Nonclinical Research Institute, Chemon Inc., 240, Nampyeong-Ro, Yangji-Myeon, Cheoin-Gu, Yongin-Si, Gyeonggi-Do 17162 Republic of Korea
| | - Chun-Ja Nam
- Headquarters of GLP, Nonclinical Research Institute, Chemon Inc., 240, Nampyeong-Ro, Yangji-Myeon, Cheoin-Gu, Yongin-Si, Gyeonggi-Do 17162 Republic of Korea
| | - Kyu Sup An
- Bioconvergence Technology Laboratory, Korea Conformity Laboratories, Incheon, 21999 Republic of Korea
| | - Hyun-Jin Kim
- Jeon-Nam Agricultural Research & Extension Services, Insect & Sericultural Research Institute, Jeonnam, 57214 Republic of Korea
| | - Hyung Joo Yoon
- Industrial Insect Division, Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju, 55365 Republic of Korea
| | - Yong-Soon Kim
- Industrial Insect Division, Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju, 55365 Republic of Korea
| | - Kwanho Park
- Industrial Insect Division, Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju, 55365 Republic of Korea
| | - Eunsun Kim
- Industrial Insect Division, Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju, 55365 Republic of Korea
| | - Hyeon Yeol Ryu
- Bioconvergence Technology Laboratory, Korea Conformity Laboratories, Incheon, 21999 Republic of Korea
| | - Sun-Don Kim
- Headquarters of GLP, Nonclinical Research Institute, Chemon Inc., 240, Nampyeong-Ro, Yangji-Myeon, Cheoin-Gu, Yongin-Si, Gyeonggi-Do 17162 Republic of Korea
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Wang J, Liao L, Chen Y, Chen L, Lai Z, Zhang L. A MODIFIED SURGICAL SEPSIS MODEL SATISFYING SEPSIS-3 AND HAVING HIGH CONSISTENCY OF MORTALITY. Shock 2023; 59:673-683. [PMID: 36821415 PMCID: PMC10082063 DOI: 10.1097/shk.0000000000002096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/04/2023] [Accepted: 02/06/2023] [Indexed: 02/24/2023]
Abstract
ABSTRACT Background : Cecal ligation and perforation (CLP) is currently considered the criterion standard model of sepsis; however, there are some deficiencies, such as low clinical relevance, inconsistency in severity grading, and an unknown proportion of CLP animals meeting the requirements of sepsis-3. Methods : Adult rats were randomly divided into the following three groups: modified CLP (M-CLP) group, CLP group, and sham group. The vital organ function of rats was evaluated 24 hours postoperatively by blood pressure, behavioral testing, histopathology, and blood test. Cytokine levels were determined by enzyme-linked immunosorbent assay, and T-cell suppression was assessed by flow cytometry. The stability of the model was evaluated by comparing the survival rates of repeated experiments in all groups from day 1 to day 14. Results : More rats in the M-CLP group met Sepsis-3 criteria than those in the CLP group 24 hours postoperatively (53.1% vs. 21.9%, P = 0.01). Rats in the M-CLP group developed more serious hepatic, pulmonary, and renal dysfunction. Similar to human sepsis, rats in the M-CLP group demonstrated more serious immunosuppression and systemic inflammation compared with the CLP group. In addition, disease development and severity, which was indicated by the stable survival rates of model animals, were more stable in the M-CLP group. Conclusions : More rats could meet Sepsis-3 criteria with this novel surgical procedure, which may reduce the number of animals needed in preclinical sepsis experiments. This stable M-CLP model may contribute to the development of new therapies.
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Affiliation(s)
- Jiebo Wang
- Department of Anesthesiology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Lianming Liao
- Center of Laboratory Medicine, Union Hospital of Fujian Medical University, Fuzhou, China
| | - Ying Chen
- Department of Anesthesiology, Longyan First Affiliated Hospital of Fujian Medical University, Longyan City, China
| | - Liji Chen
- Center of Laboratory Medicine, Union Hospital of Fujian Medical University, Fuzhou, China
| | - Zhongmeng Lai
- Department of Anesthesiology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Liangcheng Zhang
- Department of Anesthesiology, Fujian Medical University Union Hospital, Fuzhou, China
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Ghobrial DK, El-Nikhely N, Sheta E, Ragab HM, Rostom SAF, Saeed H, Wahid A. The Role of Pyrazolo[3,4-d]pyrimidine-Based Kinase Inhibitors in The Attenuation of CCl4-Induced Liver Fibrosis in Rats. Antioxidants (Basel) 2023; 12:antiox12030637. [PMID: 36978885 PMCID: PMC10045301 DOI: 10.3390/antiox12030637] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/25/2023] [Accepted: 02/28/2023] [Indexed: 03/08/2023] Open
Abstract
Liver Fibrosis can be life-threatening if left untreated as it may lead to serious, incurable complications. The common therapeutic approach is to reverse the fibrosis while the intervention is still applicable. Celecoxib was shown to exhibit some antifibrotic properties in the induced fibrotic liver in rats. The present study aimed to investigate the possible antifibrotic properties in CCl4-induced liver fibrosis in male Sprague–Dawley rats compared to celecoxib of three novel methoxylated pyrazolo[3,4-d]pyrimidines. The three newly synthesized compounds were proved to be safe candidates. They showed a therapeutic effect against severe CCl4-induced fibrosis but at different degrees. The three compounds were able to partially reverse hepatic architectural distortion and reduce the fibrotic severity by showing antioxidant properties reducing MDA with increasing GSH and SOD levels, remodeling the extracellular matrix proteins and liver enzymes balance, and reducing the level of proinflammatory (TNF-α and IL-6) and profibrogenic (TGF-β) cytokines. The results revealed that the dimethoxy-analog exhibited the greatest activity in all the previously mentioned parameters compared to celecoxib and the other two analogs which could be attributed to the different methoxylation patterns of the derivatives. Collectively, the dimethoxy-derivative could be considered a safe promising antifibrotic candidate.
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Affiliation(s)
- Diana K. Ghobrial
- Department of Biotechnology, Institute of Graduate Studies and Research, Alexandria University, Alexandria 21526, Egypt
- Correspondence: (D.K.G.); (A.W.)
| | - Nefertiti El-Nikhely
- Department of Biotechnology, Institute of Graduate Studies and Research, Alexandria University, Alexandria 21526, Egypt
| | - Eman Sheta
- Department of Pathology, Faculty of Medicine, Alexandria University, Alexandria 21321, Egypt
| | - Hanan M. Ragab
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria 21500, Egypt
| | - Sherif A. F. Rostom
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria 21500, Egypt
| | - Hesham Saeed
- Department of Biotechnology, Institute of Graduate Studies and Research, Alexandria University, Alexandria 21526, Egypt
| | - Ahmed Wahid
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Alexandria University, Alexandria 21500, Egypt
- Correspondence: (D.K.G.); (A.W.)
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9
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Liu X, Ming TW, Gaun TKW, Xiong H, Er-Bu AGA, Xie H, Gonggalanzi, Xu Y, Ye B. Research on 90-day subchronic toxicities of the ethanol extract from the cultivated Fritillaria Cirrhosa bulbs by oral administration in Sprague-Dawley rats. Regul Toxicol Pharmacol 2023; 139:105342. [PMID: 36731760 DOI: 10.1016/j.yrtph.2023.105342] [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: 09/19/2022] [Revised: 01/03/2023] [Accepted: 01/28/2023] [Indexed: 02/01/2023]
Abstract
Fritillaria Cirrhosa bulbus (BFC) is a Chinese herbal medicine. In the present study, subchronic toxicities of the ethanol extract from cultivated Fritillaria Cirrhosa bulbus (ECBFC) were performed by oral daily administration in Sprague-Dawley rats. The subchronic toxicity test of ECBFC was conducted at doses of 0.34, 0.68, and 2.04 g/kg/day for 90 days (equivalent to the highest human clinical recommend dosage of 25, 50, and 150-fold) with a 4-week satellite group. No mortality or significant changes in behaviors, body weight and food consumption were observed during the experimental and recovery periods. According to the data from ematological analysis, biochemistry, organ coefficient and the results of histopathology, the ECBFC have toxicity to the spleen and liver at the highest (2.04 g/kg), medium (0.68 g/kg) dose and nephrotoxicity at the highest dose. Subchronic oral toxicity of ECBFC in SD rats (90 days) with NOAEL was 0.34 g/kg and LOAEL was 0.68 g/kg. In addition, the toxicity is gender neutral and reversible. The NOAEL value (0.34 g/kg) is 25-fold of the highest human clinical recommend dosage thus the ECBFC could be long-term used as Chinese patent medicine or functional food.
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Affiliation(s)
- Xiao Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy Sichuan University, Chengdu, 610041, China
| | - Tse Wai Ming
- Nin Jiom Medicine Manufactory (H.K.) Limited, Hong Kong, China
| | | | - Hai Xiong
- Medical College of Tibet University, Lasa, 850002, China
| | - A G A Er-Bu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy Sichuan University, Chengdu, 610041, China; Medical College of Tibet University, Lasa, 850002, China
| | - Hongjun Xie
- Medical College of Tibet University, Lasa, 850002, China
| | - Gonggalanzi
- Medical College of Tibet University, Lasa, 850002, China
| | - Yun Xu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy Sichuan University, Chengdu, 610041, China
| | - Bengui Ye
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy Sichuan University, Chengdu, 610041, China; Medical College of Tibet University, Lasa, 850002, China.
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Go G, Yoo A, Nguyen KT, Nan M, Darmawan BA, Zheng S, Kang B, Kim CS, Bang D, Lee S, Kim KP, Kang SS, Shim KM, Kim SE, Bang S, Kim DH, Park JO, Choi E. Multifunctional microrobot with real-time visualization and magnetic resonance imaging for chemoembolization therapy of liver cancer. SCIENCE ADVANCES 2022; 8:eabq8545. [PMID: 36399561 PMCID: PMC9674283 DOI: 10.1126/sciadv.abq8545] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 09/30/2022] [Indexed: 05/28/2023]
Abstract
Microrobots that can be precisely guided to target lesions have been studied for in vivo medical applications. However, existing microrobots have challenges in vivo such as biocompatibility, biodegradability, actuation module, and intra- and postoperative imaging. This study reports microrobots visualized with real-time x-ray and magnetic resonance imaging (MRI) that can be magnetically guided to tumor feeding vessels for transcatheter liver chemoembolization in vivo. The microrobots, composed of a hydrogel-enveloped porous structure and magnetic nanoparticles, enable targeted delivery of therapeutic and imaging agents via magnetic guidance from the actuation module under real-time x-ray imaging. In addition, the microrobots can be tracked using MRI as postoperative imaging and then slowly degrade over time. The in vivo validation of microrobot system-mediated chemoembolization was demonstrated in a rat liver with a tumor model. The proposed microrobot provides an advanced medical robotic platform that can overcome the limitations of existing microrobots and current liver chemoembolization.
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Affiliation(s)
- Gwangjun Go
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21205, USA
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26 Cheomdangwagi-ro, Buk-gu, Gwangju 61011, Korea
- School of Mechanical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea
| | - Ami Yoo
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26 Cheomdangwagi-ro, Buk-gu, Gwangju 61011, Korea
| | - Kim Tien Nguyen
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26 Cheomdangwagi-ro, Buk-gu, Gwangju 61011, Korea
| | - Minghui Nan
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26 Cheomdangwagi-ro, Buk-gu, Gwangju 61011, Korea
| | - Bobby Aditya Darmawan
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26 Cheomdangwagi-ro, Buk-gu, Gwangju 61011, Korea
- School of Mechanical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea
| | - Shirong Zheng
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26 Cheomdangwagi-ro, Buk-gu, Gwangju 61011, Korea
- School of Mechanical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea
| | - Byungjeon Kang
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26 Cheomdangwagi-ro, Buk-gu, Gwangju 61011, Korea
- College of AI Convergence, Chonnam National University, Gwangju 34931, Korea
| | - Chang-Sei Kim
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26 Cheomdangwagi-ro, Buk-gu, Gwangju 61011, Korea
- School of Mechanical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea
| | - Doyeon Bang
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26 Cheomdangwagi-ro, Buk-gu, Gwangju 61011, Korea
- College of AI Convergence, Chonnam National University, Gwangju 34931, Korea
| | - Seonmin Lee
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-Gu, Seoul 05505, Korea
| | - Kyu-Pyo Kim
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-Gu, Seoul 05505, Korea
| | - Seong Soo Kang
- Department of Veterinary Surgery, College of Veterinary Medicine and Biomaterial R&BD Center, Chonnam National University, Gwangju 61186, Korea
| | - Kyung Mi Shim
- Department of Veterinary Surgery, College of Veterinary Medicine and Biomaterial R&BD Center, Chonnam National University, Gwangju 61186, Korea
| | - Se Eun Kim
- Department of Veterinary Surgery, College of Veterinary Medicine and Biomaterial R&BD Center, Chonnam National University, Gwangju 61186, Korea
| | - Seungmin Bang
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul 120-752, Korea
| | - Deok-Ho Kim
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21205, USA
- Department of Medicine, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Jong-Oh Park
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26 Cheomdangwagi-ro, Buk-gu, Gwangju 61011, Korea
| | - Eunpyo Choi
- Korea Institute of Medical Microrobotics (KIMIRo), 43-26 Cheomdangwagi-ro, Buk-gu, Gwangju 61011, Korea
- School of Mechanical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea
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11
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Supplementation of Lactobacillus plantarum (TCI227) Prevented Potassium-Oxonate-Induced Hyperuricemia in Rats. Nutrients 2022; 14:nu14224832. [PMID: 36432519 PMCID: PMC9693167 DOI: 10.3390/nu14224832] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/08/2022] [Accepted: 11/09/2022] [Indexed: 11/17/2022] Open
Abstract
Hyperuricemia (HC) is one of the important risk factors for gout, arteriosclerosis, and cardiovascular disease. Animal studies have shown that Lactobacillus plantarum can improve microbiota and immune regulation, as well as inhibit uric acid production. However, it is not clear whether L. plantarum can improve HC and intestinal microbiota. We used potassium oxonate (PO) to induce HC in male SD rats and then treated them with L. plantarum TCI227 in a dose-dependent manner (HC + LD, HC + MD, HC + HD) for 4 weeks. We examined organ weight, conducted biochemical examinations of blood and urine, and analyzed the intestinal microbiota in feces through a 16s rDNA sequence analysis. In this study, TCI227 improved body weight, decreased creatinine and serum uric acid, and increased urine uric acid compared to the HC group. Furthermore, TCI227 increased short-chain fatty acids (SCFAs). In the fecal microbiota (family), TCI227 increased the level of Lactobacillaceae and then decreased the levels of Deferribacteres and Prevotellaceae compared to the HC group. Finally, in the fecal microbiota (genus), TCI227 decreased the level of Prevotella and then increased the levels of Lactobacillus and Ruminococcus compared to the HC group. This study suggested that TCI227 can improve HC and can change the composition of intestinal microbiota in PO-induced male HC SD rats.
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12
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Park SK, Kim SW, Seo HW, Hyun SH, Kyung JS, Youn SH, So SH, In G, Park CK, Yi EC, Han CK, Lee YY. Long-term evaluation of safety and biological effects of Korean Red Ginseng ( Panax Ginseng): a long-term in vivo study. BMC Complement Med Ther 2022; 22:284. [PMID: 36333693 PMCID: PMC9635099 DOI: 10.1186/s12906-022-03736-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 09/16/2022] [Indexed: 11/06/2022] Open
Abstract
Background Although Korean Red Ginseng (KRG) is safe, this finding was only evaluated in 3-mo-long studies. Its safety was verified through a 6-mo KRG administration clinical study, but long-term studies beyond 6 mo are insufficient. This study investigated the safety and efficacy of 12-mo KRG administration. Methods In this study, 300 mg/kg of KRG was administered to male and female Sprague Dawley rats for 4, 8, and 12 mo to evaluate its efficacy and safety. Clinical signs, including pathological examination and haematological analyses, were observed. Flow cytometric analyses were utilised to analyse spleen and thymus immune cell counts after 12 mo. Proteomic analysis of the sera was performed using a nanospray-interfaced mass spectrometer with an 11-plex Tandem Mass Tag (TMT) labelling system. Bioinformatic analysis was then performed using Ingenuity Pathway Analysis and PANTHER. Data are available via ProteomeXchange with identifier PXD032036. Results No significant body and organ weight changes were observed, and haematological and serum biochemical analyses did not show clinical significance. The effectiveness of long-term KRG administration was confirmed through increased immune cell distribution and activity. Changes in proteins correlated with viral infection reduction were confirmed through proteomic analysis. Conclusion The results suggested that 12-mo KRG intake is safe, improves immune system activity, and reduces viral infections with no significant changes in toxicological aspects. Supplementary Information The online version contains supplementary material available at 10.1186/s12906-022-03736-5.
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Affiliation(s)
- Soo Kyung Park
- Laboratory of Efficacy Research, Korea Ginseng Corporation, 30 Gajeong-ro, Shinseong- dong, Yuseong-gu, 34128 Daejeon, Republic of Korea
| | - Sung-Won Kim
- Laboratory of Efficacy Research, Korea Ginseng Corporation, 30 Gajeong-ro, Shinseong- dong, Yuseong-gu, 34128 Daejeon, Republic of Korea
| | - Hwi Won Seo
- grid.249967.70000 0004 0636 3099Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong- gu, 34141 Daejeon, Republic of Korea
| | - Sun Hee Hyun
- Laboratory of Efficacy Research, Korea Ginseng Corporation, 30 Gajeong-ro, Shinseong- dong, Yuseong-gu, 34128 Daejeon, Republic of Korea
| | - Jong-Su Kyung
- Laboratory of Efficacy Research, Korea Ginseng Corporation, 30 Gajeong-ro, Shinseong- dong, Yuseong-gu, 34128 Daejeon, Republic of Korea
| | - Soo-Hyun Youn
- Laboratory of Efficacy Research, Korea Ginseng Corporation, 30 Gajeong-ro, Shinseong- dong, Yuseong-gu, 34128 Daejeon, Republic of Korea
| | - Seung Ho So
- Laboratory of Efficacy Research, Korea Ginseng Corporation, 30 Gajeong-ro, Shinseong- dong, Yuseong-gu, 34128 Daejeon, Republic of Korea
| | - Gyo In
- Laboratory of Efficacy Research, Korea Ginseng Corporation, 30 Gajeong-ro, Shinseong- dong, Yuseong-gu, 34128 Daejeon, Republic of Korea
| | - Chae-Kyu Park
- Laboratory of Efficacy Research, Korea Ginseng Corporation, 30 Gajeong-ro, Shinseong- dong, Yuseong-gu, 34128 Daejeon, Republic of Korea
| | - Eugene C. Yi
- grid.31501.360000 0004 0470 5905Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, 03080 Seoul, Republic of Korea
| | - Chang-Kyun Han
- Laboratory of Efficacy Research, Korea Ginseng Corporation, 30 Gajeong-ro, Shinseong- dong, Yuseong-gu, 34128 Daejeon, Republic of Korea
| | - Yong Yook Lee
- Laboratory of Efficacy Research, Korea Ginseng Corporation, 30 Gajeong-ro, Shinseong- dong, Yuseong-gu, 34128 Daejeon, Republic of Korea
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13
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Oliaei R, Keshtmand Z, Shabani R. The effect of <em>Lactobacillus casei</em> and <em>Bacillus coagulans</em> probiotics on liver damage induced by silver nanoparticles and expression of Bax, Bcl2 and Caspase 3 genes in male rats. Eur J Transl Myol 2022; 33. [PMID: 36101996 DOI: 10.4081/ejtm.2022.10673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 06/21/2022] [Indexed: 11/23/2022] Open
Abstract
In this study, we aimed to evaluate the effect of Bacillus coagulans and Lactobacillus casei probiotics on liver damage induced by silver nanoparticles and expression of Bax, Bcl2 and Caspase 3 genes in rats. 32 adult male Wistar rats were divided into four healthy groups (control), the group receiving silver nanoparticles treated with L. casei, the group receiving silver nanoparticles treated with B. coagulans and the group receiving only silver nanoparticles. The effect of nanoparticles was induced by intraperitoneal injection of silver nanoparticles prepared from nettle at a dose of 50 mg/kg and entered the liver tissue through the bloodstream. Two days after injection, probiotic treatment with 109 CFU was performed by gavage for 30 days. One day after the last gavage, rat liver tissue weight was assessed. Also, the total amount of RNA was extracted from treated, and healthy tissues, as well as induced silver nanoparticles tissues, then evaluated by Real Time PCR. Data were evaluated using one-way Anova, Tukey test. Based on the biochemical results of this study, exposure of rats to different concentrations of silver nanoparticles compared with the control group caused a significant increase in the serum levels of alanine transaminase (ALT) and aspartate transaminase (AST), alkaline phosphatase (ALP), especially at high concentrations. Evaluation of damage and histopathological lesions showed that silver nanoparticles in different concentrations caused different damage to liver tissue, so that, necrosis, inflammatory cell infiltration and vascular degeneration were observed at different concentrations by silver nanoparticles. In the present study, the effects of L. casei cell extract on increasing the expression of Bax proapoptotic gene and decreasing Bcl2 gene expression in cancer cells and inducing programmed cell death were shown. In this study, the expression of Bax, Bcl-2 and Caspase-3 genes in the group receiving silver nanoparticles and in the groups treated with probiotics showed significant changes compared to the control group. It can be concluded that the function of silver nanoparticles and the effects of relative improvement of probiotics are from the internal route of apoptosis and factors such as dose, nanoparticle size and nanoparticle coating have an important role in the toxicity of silver nanoparticles, thus the destructive effects on liver tissue could be increased by increasing the concentration of silver nanoparticles.
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Affiliation(s)
- Reyhaneh Oliaei
- Department of Biology, Central Tehran Branch, Islamic Azad University, Tehran.
| | - Zahra Keshtmand
- Department of Biology, Central Tehran Branch, Islamic Azad University, Tehran.
| | - Ronak Shabani
- Department of Anatomical Sciences, School of Medicine, Iran University of Medical Sciences, Tehran.
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14
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Syamimi Zaini N, Karim R, Faizal Abdull Razis A, Fazila Saulol Hamid N, Zawawi N. A pilot study of toxicological safety evaluation in acute and subacute (28-day) oral assessments of kenaf seed beverage in rats. Food Res Int 2022; 162:111988. [DOI: 10.1016/j.foodres.2022.111988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 09/14/2022] [Accepted: 09/26/2022] [Indexed: 11/04/2022]
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15
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Park SH, Lim CY, Moon JM, Gwag JE, Lee JY, Yang SA. Toxicological assessment of enzyme-treated Zizania latifolia extract: Oral toxicology and genotoxicity in rats. Regul Toxicol Pharmacol 2022; 133:105220. [PMID: 35792245 DOI: 10.1016/j.yrtph.2022.105220] [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: 10/20/2021] [Revised: 01/12/2022] [Accepted: 06/30/2022] [Indexed: 10/17/2022]
Abstract
Zizania latifolia Turcz. has long been used as a food source in Southeast Asia. The grains, stems, and leaves of Z. latifolia and its major component, tricin, have also been studied to determine their biological activities. Previously, we hydrolyzed the aerial part of Z. latifolia using an enzyme mixture to maximize the tricin content of the Z. latifolia extract. However, the safety of enzyme-treated Z. latifolia extract (ETZL; DermaNiA™) has not yet been determined. In this study, we performed an in vivo 90-day repeated-dose evaluation and genotoxicity study to assess the toxicological potential of ETZL. EZTL did not exhibit genotoxicity in the bacterial reverse mutation test, in vitro chromosomal aberration assay, or in vivo micronucleus test. Moreover, no changes in body weight or hematological and serum biological parameters were observed in male or female rats under high-dose EZTL treatment (5000 mg/kg body weight (bw)/day) for 90 days with a 4-week recovery period. Significant changes were noted in the forestomach, kidneys, and adrenal glands in the test groups, but these changes, or tendency for recovery, were not observed in the recovery group. Based on these data, the no adverse effect level was determined to be 1250 mg/kg bw/day in rats.
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Affiliation(s)
- Se-Ho Park
- Department of Applied Chemistry, Kumoh National Institute of Technology, Gumi, 39177, South Korea; Institute of Natural Science, Keimyung University, Daegu, 42601, South Korea
| | - Cho Young Lim
- R&D Center, BTC Corporation, Sangnok-gu, Ansan, 15588, South Korea
| | - Joo Myung Moon
- R&D Center, BTC Corporation, Sangnok-gu, Ansan, 15588, South Korea
| | - Jung Eun Gwag
- R&D Center, BTC Corporation, Sangnok-gu, Ansan, 15588, South Korea
| | - Jae-Yeul Lee
- Department of Applied Chemistry, Kumoh National Institute of Technology, Gumi, 39177, South Korea; Institute of Natural Science, Keimyung University, Daegu, 42601, South Korea
| | - Seun-Ah Yang
- Department of Food Science and Technology, Keimyung University, Daegu, 42601, South Korea.
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16
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Park SH, Lim JO, Kim WI, Park SW, Lee SJ, Shin IS, Moon C, Kim JH, Heo JD, Kim JC. Subchronic Toxicity Evaluation of Aluminum Oxide Nanoparticles in Rats Following 28-Day Repeated Oral Administration. Biol Trace Elem Res 2022; 200:3215-3226. [PMID: 34535882 DOI: 10.1007/s12011-021-02926-5] [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: 07/29/2021] [Accepted: 09/09/2021] [Indexed: 10/20/2022]
Abstract
Several studies on the potential adverse effects of aluminum oxide nanoparticles (Al2O3NPs) have reported conflicting results. The present study investigated the potential adverse effects of Al2O3NPs in Sprague-Dawley rats following 28-day repeated oral administration. In addition, we aimed to determine the target organ and no-observed-adverse-effect level (NOAEL) of Al2O3NPs. Al2O3NPs was administered once daily by gavage to male and female rats at dose levels of 0, 500, and 1000 mg/kg/day for 28 days. There were no treatment-related adverse effects as indicated by the clinical signs, body weight, food consumption, urinalysis, ophthalmology, hematology, serum biochemistry, gross pathology, organ weight, and histopathology at all the tested doses. Under the experimental conditions of the present study, 28-day repeated oral administration of Al2O3NPs at doses of up to 1000 mg/kg/day did not induce any treatment-related systemic toxicity in male and female rats. The NOAEL of Al2O3NPs was set at 1000 mg/kg/day in both male and female rats and no target organs were identified.
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Affiliation(s)
- Sung-Hyeuk Park
- College of Veterinary Medicine, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Je-Oh Lim
- College of Veterinary Medicine, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Woong-Il Kim
- College of Veterinary Medicine, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - So-Won Park
- College of Veterinary Medicine, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Se-Jin Lee
- College of Veterinary Medicine, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - In-Sik Shin
- College of Veterinary Medicine, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Changjong Moon
- College of Veterinary Medicine, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Je-Hein Kim
- Bioenvironmental Science & Technology Division, Korea Institute of Toxicology, Gyeongnam, 52834, Republic of Korea
| | - Jeong-Doo Heo
- Bioenvironmental Science & Technology Division, Korea Institute of Toxicology, Gyeongnam, 52834, Republic of Korea
| | - Jong-Choon Kim
- College of Veterinary Medicine, Chonnam National University, Gwangju, 61186, Republic of Korea.
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17
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Tusé D, Reeves M, Royal J, Hamorsky KT, Ng H, Arolfo M, Green C, Trigunaite A, Parman T, Lee G, Matoba N. Pharmacokinetics and Safety Studies in Rodent Models Support Development of EPICERTIN as a Novel Topical Wound-Healing Biologic for Ulcerative Colitis. J Pharmacol Exp Ther 2022; 380:162-170. [PMID: 35058349 PMCID: PMC11046972 DOI: 10.1124/jpet.121.000904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 01/02/2022] [Indexed: 04/28/2024] Open
Abstract
The novel wound-healing biologic EPICERTIN, a recombinant analog of cholera toxin B subunit, is in early development for the management of ulcerative colitis. This study established for the first time the pharmacokinetics (PK), bioavailability (BA), and acute safety of EPICERTIN in healthy and dextran sodium sulfate-induced colitic mice and healthy rats. For PK and BA assessments, single administrations of various concentrations of EPICERTIN were given intravenously or intrarectally to healthy and colitic C57BL/6 mice and to healthy Sprague-Dawley rats. After intravenous administration to healthy animals, the drug's plasma half-life (t 1/2) for males and females was 0.26 and 0.3 hours in mice and 19.4 and 14.5 hours in rats, respectively. After intrarectal administration, drug was detected at very low levels in only four samples of mouse plasma, with no correlation to colon epithelial integrity. No drug was detected in rat plasma. A single intrarectal dose of 0.1 µM (0.6 µg/mouse) EPICERTIN significantly facilitated the healing of damaged colonic epithelium as determined by disease activity index and histopathological scoring, whereas 10-fold higher or lower concentrations showed no effect. For acute toxicity evaluation, healthy rats were given a single intrarectal administration of various doses of EPICERTIN with sacrifice on Day 8, recording body weight, morbidity, mortality, clinical pathology, and gross necropsy observations. There were no drug-related effects of toxicological significance. The no observed adverse effect level (intrarectal) in rats was determined to be 5 µM (307 µg/animal, or 5.2 µg drug/cm2 of colorectal surface area), which is 14 times the anticipated intrarectally delivered clinical dose. SIGNIFICANCE STATEMENT: EPICERTIN is a candidate wound-healing biologic for the management of ulcerative colitis. This study determined for the first time the intravenous and intrarectal pharmacokinetics and bioavailability of the drug in healthy and colitic mice and healthy rats, and its acute safety in a dose-escalation study in rats. An initial therapeutic dose in colitic mice was also established. EPICERTIN delivered intrarectally was minimally absorbed systemically, was well tolerated, and induced epithelial wound healing topically at a low dose.
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Affiliation(s)
- Daniel Tusé
- GROW Biomedicine, LLC and DT/Consulting Group, Sacramento, California (D.T.); Department of Pharmacology and Toxicology (M.R., J.R., N.M.), Department of Medicine (K.T.H.), and James Graham Brown Cancer Center, Center for Predictive Medicine (K.T.H., N.M.), University of Louisville, Louisville, Kentucky; SRI Biosciences Division, SRI International, Menlo Park, California (H.N., M.A., C.G., A.T., T.P.); and Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (G.L.)
| | - Micaela Reeves
- GROW Biomedicine, LLC and DT/Consulting Group, Sacramento, California (D.T.); Department of Pharmacology and Toxicology (M.R., J.R., N.M.), Department of Medicine (K.T.H.), and James Graham Brown Cancer Center, Center for Predictive Medicine (K.T.H., N.M.), University of Louisville, Louisville, Kentucky; SRI Biosciences Division, SRI International, Menlo Park, California (H.N., M.A., C.G., A.T., T.P.); and Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (G.L.)
| | - Joshua Royal
- GROW Biomedicine, LLC and DT/Consulting Group, Sacramento, California (D.T.); Department of Pharmacology and Toxicology (M.R., J.R., N.M.), Department of Medicine (K.T.H.), and James Graham Brown Cancer Center, Center for Predictive Medicine (K.T.H., N.M.), University of Louisville, Louisville, Kentucky; SRI Biosciences Division, SRI International, Menlo Park, California (H.N., M.A., C.G., A.T., T.P.); and Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (G.L.)
| | - Krystal T Hamorsky
- GROW Biomedicine, LLC and DT/Consulting Group, Sacramento, California (D.T.); Department of Pharmacology and Toxicology (M.R., J.R., N.M.), Department of Medicine (K.T.H.), and James Graham Brown Cancer Center, Center for Predictive Medicine (K.T.H., N.M.), University of Louisville, Louisville, Kentucky; SRI Biosciences Division, SRI International, Menlo Park, California (H.N., M.A., C.G., A.T., T.P.); and Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (G.L.)
| | - Hanna Ng
- GROW Biomedicine, LLC and DT/Consulting Group, Sacramento, California (D.T.); Department of Pharmacology and Toxicology (M.R., J.R., N.M.), Department of Medicine (K.T.H.), and James Graham Brown Cancer Center, Center for Predictive Medicine (K.T.H., N.M.), University of Louisville, Louisville, Kentucky; SRI Biosciences Division, SRI International, Menlo Park, California (H.N., M.A., C.G., A.T., T.P.); and Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (G.L.)
| | - Maria Arolfo
- GROW Biomedicine, LLC and DT/Consulting Group, Sacramento, California (D.T.); Department of Pharmacology and Toxicology (M.R., J.R., N.M.), Department of Medicine (K.T.H.), and James Graham Brown Cancer Center, Center for Predictive Medicine (K.T.H., N.M.), University of Louisville, Louisville, Kentucky; SRI Biosciences Division, SRI International, Menlo Park, California (H.N., M.A., C.G., A.T., T.P.); and Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (G.L.)
| | - Carol Green
- GROW Biomedicine, LLC and DT/Consulting Group, Sacramento, California (D.T.); Department of Pharmacology and Toxicology (M.R., J.R., N.M.), Department of Medicine (K.T.H.), and James Graham Brown Cancer Center, Center for Predictive Medicine (K.T.H., N.M.), University of Louisville, Louisville, Kentucky; SRI Biosciences Division, SRI International, Menlo Park, California (H.N., M.A., C.G., A.T., T.P.); and Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (G.L.)
| | - Abhishek Trigunaite
- GROW Biomedicine, LLC and DT/Consulting Group, Sacramento, California (D.T.); Department of Pharmacology and Toxicology (M.R., J.R., N.M.), Department of Medicine (K.T.H.), and James Graham Brown Cancer Center, Center for Predictive Medicine (K.T.H., N.M.), University of Louisville, Louisville, Kentucky; SRI Biosciences Division, SRI International, Menlo Park, California (H.N., M.A., C.G., A.T., T.P.); and Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (G.L.)
| | - Toufan Parman
- GROW Biomedicine, LLC and DT/Consulting Group, Sacramento, California (D.T.); Department of Pharmacology and Toxicology (M.R., J.R., N.M.), Department of Medicine (K.T.H.), and James Graham Brown Cancer Center, Center for Predictive Medicine (K.T.H., N.M.), University of Louisville, Louisville, Kentucky; SRI Biosciences Division, SRI International, Menlo Park, California (H.N., M.A., C.G., A.T., T.P.); and Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (G.L.)
| | - Goo Lee
- GROW Biomedicine, LLC and DT/Consulting Group, Sacramento, California (D.T.); Department of Pharmacology and Toxicology (M.R., J.R., N.M.), Department of Medicine (K.T.H.), and James Graham Brown Cancer Center, Center for Predictive Medicine (K.T.H., N.M.), University of Louisville, Louisville, Kentucky; SRI Biosciences Division, SRI International, Menlo Park, California (H.N., M.A., C.G., A.T., T.P.); and Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (G.L.)
| | - Nobuyuki Matoba
- GROW Biomedicine, LLC and DT/Consulting Group, Sacramento, California (D.T.); Department of Pharmacology and Toxicology (M.R., J.R., N.M.), Department of Medicine (K.T.H.), and James Graham Brown Cancer Center, Center for Predictive Medicine (K.T.H., N.M.), University of Louisville, Louisville, Kentucky; SRI Biosciences Division, SRI International, Menlo Park, California (H.N., M.A., C.G., A.T., T.P.); and Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (G.L.)
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18
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Jeong SH, Jang JH, Cho HY, Lee YB. Toxicokinetic studies of di-isobutyl phthalate focusing on the exploration of gender differences in rats. CHEMOSPHERE 2022; 286:131706. [PMID: 34346322 DOI: 10.1016/j.chemosphere.2021.131706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 07/20/2021] [Accepted: 07/26/2021] [Indexed: 06/13/2023]
Abstract
Due to the use of di-isobutyl-phthalate (DiBP) in the production of soft-polyvinyl chloride articles, it is currently a hazardous substance prevalent in human daily life. However, reports on DiBP's toxicokinetics are still very scarce. And no studies have been reported on gender differences in DiBP toxicokinetics. Therefore, this study was conducted in accordance with these research needs. DiBP of 100 mg/kg has been exposed to male and female rats single or multiple times. DiBP and its major metabolite, mono-isobutyl-phthalate (MiBP), were quantified from various biological samples obtained from rats administered with DiBP. Based on these results, several toxicokinetic parameters were estimated. Toxicokinetic results between genders were compared, and from this, existence and extent of gender differences in DiBP's toxicokinetics were explored. Investigation of presence and extent of subacute toxicity in male and female rats following multiple exposures to DiBP were also conducted. This study provided comprehensive information on DiBP toxicity and gender differences that have not been reported in detail. Results of these studies imply that subacute toxicity in liver, kidney, lung, and testis of rats at 100 mg/kg of DiBP is modest and that there is little difference in toxicokinetics between genders. And in both male and female rats, the metabolism of DiBP (to MiBP) was significant, and excretion of MiBP into urine was a major indicator of DiBP exposure.
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Affiliation(s)
- Seung-Hyun Jeong
- College of Pharmacy, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, 61186, Republic of Korea
| | - Ji-Hun Jang
- College of Pharmacy, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, 61186, Republic of Korea
| | - Hea-Young Cho
- College of Pharmacy, CHA University, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-Do, 13488, Republic of Korea
| | - Yong-Bok Lee
- College of Pharmacy, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, 61186, Republic of Korea.
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Evaluation of Subchronic Toxicity and Genotoxicity of Ethanolic Extract of Aster glehni Leaves and Stems. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:1018101. [PMID: 35003288 PMCID: PMC8736694 DOI: 10.1155/2021/1018101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 09/28/2021] [Accepted: 12/14/2021] [Indexed: 11/24/2022]
Abstract
Aster glehni, a traditional plant on Ulleung Island in the Republic of Korea, has been recognized for its multiple medicinal properties. However, potential toxicity and safety analyses of A. glehni have not been previously investigated. Therefore, this study aimed to evaluate the safety profile of ethanolic extract of A. glehni leaves and stems (EAG) in terms of genotoxicity and subchronic oral animal toxicity under OECD guidelines and GLP conditions. Toxicological assessments were performed at doses of 1,250, 2,500, and 5,000 mg/kg/day in a 13-week oral repeated-dose toxicity study of EAG in male and female SD rats. In addition, an Ames test, an in vitro mammalian chromosomal aberration test, and a micronucleus test were performed. No toxicological changes in clinical signs, body weights, water and food consumption, urinalysis, hematology, clinical biochemistry, gross findings, and histopathological examinations were observed in subchronic oral animal toxicity. In addition, EAG gave negative results when evaluated using in vitro and in vivo genotoxicity tests. In conclusion, the no-observed-adverse-effect level (NOAEL) of EAG was considered to be 5,000 mg/kg/day, and no target organs were identified in both sexes of rats. EAG was also classified as nonmutagenic and nonclastogenic in genotoxicity testing. Collectively, these results show a lack of general toxicity and genotoxicity for EAG that supports clinical work for development as a herbal medicine.
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20
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Park S, Lim J, Lee KT, Oh MS, Jang DS. Single and Repeated Oral Dose Toxicity and Genotoxicity of the Leaves of Butterbur. Foods 2021; 10:foods10081963. [PMID: 34441739 PMCID: PMC8394925 DOI: 10.3390/foods10081963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/19/2021] [Accepted: 08/19/2021] [Indexed: 11/23/2022] Open
Abstract
Butterbur (Petasites japonicus (Siebold & Zucc.) Maxim) leaves are available to consumers in the marketplace, but there is no guarantee that they are safe for human consumption. Previously, we demonstrated that hot water extracts of P. japonicus leaves (KP-1) had anti-inflammatory properties and attenuated memory impairment. However, data regarding KP-1 toxicity are lacking. This study assessed the safety of KP-1 by examining oral and genotoxic effects using in vivo and in vitro tests, respectively. In a single oral dose toxicity and two-week repeated oral dose toxicity study, we observed no toxicologically significant clinical signs or changes in hematology, blood chemistry, and organ weights at any dose during the experiment. Following a thirteen-week repeated oral dose, toxicity, hyperkeratosis, and squamous cell hyperplasia of the limiting ridge in the stomach were observed. The no observable adverse effect level (NOAEL) was found to be 1250 mg/kg/day in male and female rats. However, hyperkeratosis and hyperplasia were not considered to be of toxicological significance when extrapolating the NOAEL to humans because the limiting ridge in the stomach is species-specific to rats. Therefore, in our study, the NOAEL was considered to be 5000 mg/kg/day when the changes in the stomach’s limiting ridge were discounted. Moreover, in vitro bacterial reverse mutations and chromosomal aberrations in Chinese hamster lung (CHL) cells and the in vivo micronucleus in Institute of cancer research (ICR) mice assays showed that KP-1 possessed no mutagenicity. Although additional research is required, these toxicological evaluations suggest that KP-1 could be safe for human consumption.
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Affiliation(s)
- Sangsu Park
- Department of Fundamental Pharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Korea;
| | - Jeongin Lim
- NATUREBIO Co., Ltd., Seoul Biohub Industry-Academic Cooperation Center, Seoul 02447, Korea;
| | - Kyung Tae Lee
- Department of Pharmaceutical Biochemistry, College of Pharmacy, Kyung Hee University, Seoul 02447, Korea;
| | - Myung Sook Oh
- Department of Oriental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul 02447, Korea;
| | - Dae Sik Jang
- Department of Life and Nanopharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Korea
- Correspondence: ; Tel.: +82-2-961-0719
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21
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Yang M, Sun P, Fan Z, Khan A, Xue Q, Wang Y, Cao J, Cheng G. Safety evaluation and hypolipidemic effect of aqueous-ethanol and hot-water extracts from E Se tea in rats. Food Chem Toxicol 2021; 156:112506. [PMID: 34389369 DOI: 10.1016/j.fct.2021.112506] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 08/01/2021] [Accepted: 08/07/2021] [Indexed: 01/18/2023]
Abstract
E Se tea, processed by the fresh leaves of Malus toringoides (Rehd.) Hughes, is a traditional herbal tea with various human benefits. The present study was aimed to evaluate the toxicity and hypolipidemic effect of aqueous-ethanol extract (EE) and hot-water extract (WE) from E Se tea. Eight main chemical constituents in EE and WE were respectively identified and quantified by UHPLC-HRMS/MS. EE is rich in TPC and TFC, while WE had higher TPS content. Both EE and WE exhibited strong antioxidant activity with no significant difference. The acute toxicity study revealed that the LD50 values were higher than 5000 mg/kg, while both WE and EE had no significant adverse effect in rats by subacute toxicity assay. However, the triglyceride (TG) content in experiment groups (male) and highest doses groups (female) significantly decreased. Furthermore, the hypolipidemic effect of WE and EE were performed on high fat diet induced hyperlipidemic rats. The result exhibited that either WE or EE could effectively regulate lipid droplet accumulation in liver, and reduce the adipocyte size. These results demonstrated that these two extracts from E Se tea could be regarded as a potential functional dietary supplement in preventing and treating diet induced metabolic diseases.
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Affiliation(s)
- Meilian Yang
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China
| | - Pengzhen Sun
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China
| | - Zhifeng Fan
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China
| | - Afsar Khan
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, 22060, Pakistan
| | - Qingwang Xue
- Department of Chemistry, Liaocheng University, Liaocheng, 252059, China
| | - Yifen Wang
- Department of Science, Kunming Institute of Zoology, Kunming, 650223, China
| | - Jianxin Cao
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China
| | - Guiguang Cheng
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China.
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22
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Won H, Jeong DH, Shin HS, Lee JH, Lee JP, Yang JY, Jung K, Jeong J, Oh JH. Toxicological Assessment of Bromochlorophene: Single and Repeated-Dose 28-Day Oral Toxicity, Genotoxicity, and Dermal Application in Sprague-Dawley Rats. Front Pharmacol 2021; 12:690141. [PMID: 34335256 PMCID: PMC8316990 DOI: 10.3389/fphar.2021.690141] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 05/21/2021] [Indexed: 11/13/2022] Open
Abstract
Bromochlorophene (BCP) has shown good properties in sterilization and antibacterial activity and is widely used as a household chemical. We evaluated the genotoxicity, single and repeated-dose 28-day oral toxicity, and dermal application of a BCP suspension in Sprague–Dawley (SD) rats. For the single-dose toxicity study, a dose of 25–1,000 mg per kg of bodyweight (mg/kg b.w.) of BCP was given once orally to SD rats. Mortality and clinical signs were observed and recorded for the first 30 min after treatment, at 4 h post-administration, and then at least once daily for 14 days after administration. For the repeated-dose 28-day toxicity study, the high dose was set at 1,000 mg/kg b.w. and the middle, middle-low, and low dose were set to 500, 250, and 125 mg/kg, respectively. Hematology and biochemistry parameters were examined. Gross pathologic and histopathologic examinations were performed on selected tissues from all animals. A bacterial reverse mutation assay, in vitro chromosomal aberration assay, and in vivo micronucleus assay were performed to assess genotoxicity-dermal application exposure assessment of BCP in rats. A high oral approximate lethal dose (ALD) of 1,000 mg/kg was observed in the single-dose toxicity test. During the repeated-dose 28-day time period, most animal deaths after administration occurred during the first 3 weeks. The 1,000 mg/kg b.w. oral dose caused the death of six male rats (6/7) and four female rats (4/7). At 500 mg/kg b.w., the female rats showed mortality (1/7). For the biochemistry assays, cholesterol was increased significantly compared to vehicle in both sexes in the 250 and 500 mg/kg groups. Histopathological changes with treatment-related findings were observed in the pancreas in female rats treated with a high dose of BCP compared with the vehicle group. BCP showed no genotoxic effect. These data suggested that the ALD of BCP, estimated as a non-genotoxic substance, was over 1,000 mg/kg b.w. in the single-dose toxicity study, and the NOAEL of BCP was considered to be 250 mg/kg b.w. for male and female rats after repeated oral administration for 28 days under the present study conditions.
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Affiliation(s)
- Hansol Won
- Division of Toxicological Research, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Osong, South Korea
| | - Da Hye Jeong
- Division of Toxicological Research, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Osong, South Korea
| | - Hyo-Sook Shin
- Division of Toxicological Research, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Osong, South Korea
| | - Jin Hee Lee
- Division of Toxicological Research, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Osong, South Korea
| | - Jeong Pyo Lee
- Division of Toxicological Research, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Osong, South Korea
| | - Jun-Young Yang
- Division of Toxicological Research, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Osong, South Korea
| | - Kikyung Jung
- Division of Toxicological Research, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Osong, South Korea
| | - Jayoung Jeong
- Division of Toxicological Research, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Osong, South Korea
| | - Jae Ho Oh
- Division of Toxicological Research, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Osong, South Korea
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23
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Kapoor MP, Moriwaki M, Timm D, Yamagata H, Maruyama G, Nisihara Y, Nakazawa T, Takata S, Nakamura D. 13-Weeks subchronic toxicity of isoquercitrin-γ-cyclodextrin (IQC-γCD) molecular inclusion complex in Sprague-Dawley rats. Food Chem Toxicol 2021; 152:112217. [PMID: 33865935 DOI: 10.1016/j.fct.2021.112217] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 04/05/2021] [Accepted: 04/11/2021] [Indexed: 12/22/2022]
Abstract
Flavonoids such as quercetin and its glycoside Isoquercitrin and are abundantly present in the diet and have various pharmacological effects. However, limited data about its potential toxicity is available. In this study, we aim to evaluate the subchronic toxicity of the isoquercitrin-γ-cyclodextrin (IQC-γCD) molecular inclusion complex (SunActive® QCD/EN) in Sprague-Dawley (SD) rats. The IQC-γCD was administrated orally to 40 male and 40 female SD rats at dietary doses up to 5.0 % for 13 consecutive weeks. During the experiment periods, the general clinical signs, mortality, hematological, urinalysis values, biochemical, and histopathological parameters were examined. All animals survived until the scheduled necropsy, and no statistically significant or clinical sign of toxicologically relevant differences including pathology parameters, and histopathological endpoints were observed in any of the IQC-γCD treatment groups, compared with the control group. However, certain observations were noted in the male rats treated with the highest concentration (5.0 %), but these were not seen in female rats. A slight inhibition of weight gain was observed, probably linked to a fall in red blood cells, and hematocrit index in female rats. Statistically significant changes were noted in some clinical measures, such as plasma bilirubin level, alkaline phosphatase total bile acid without evidence of systemic clinical toxicity. The results support no observed adverse effect level (NOAEL) of IQC-γCD of 5.0 % in the diet for males (3338.55 mg/kg/day), and 3.0 % in the diet for females (2177.33 mg/kg/day) SD rats. Therefore, in this 13 weeks repeated-dose SD rat study there were no treatment-related adverse clinical or pathological findings for IQC-γCD of 5.0 % in the diet for males, and 3.0 % in the diet for females SD rats. The results of the present study support the safe use of IQC-γCD as a functional food, food additive, and natural ingredient.
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Affiliation(s)
- Mahendra P Kapoor
- Taiyo Kagaku Co. Ltd., Nutrition Division, 1-3 Takaramachi, Yokkaichi, Mie, 510-0844, Japan.
| | - Masamitsu Moriwaki
- Taiyo Kagaku Co. Ltd., Nutrition Division, 1-3 Takaramachi, Yokkaichi, Mie, 510-0844, Japan
| | - Derek Timm
- Taiyo International Inc., 5960 Golden Hills Dr., Minneapolis, MN, 55416, USA
| | - Hiroshi Yamagata
- Gotemba Laboratory, BoZo Research Center Inc., 1284, Kamado, Gotemba-shi, Shizuoka, 412-0039, Japan
| | - Go Maruyama
- Gotemba Laboratory, BoZo Research Center Inc., 1284, Kamado, Gotemba-shi, Shizuoka, 412-0039, Japan
| | - Yoshito Nisihara
- Gotemba Laboratory, BoZo Research Center Inc., 1284, Kamado, Gotemba-shi, Shizuoka, 412-0039, Japan
| | - Tomomi Nakazawa
- Gotemba Laboratory, BoZo Research Center Inc., 1284, Kamado, Gotemba-shi, Shizuoka, 412-0039, Japan
| | - Shinro Takata
- Gotemba Laboratory, BoZo Research Center Inc., 1284, Kamado, Gotemba-shi, Shizuoka, 412-0039, Japan
| | - Daichi Nakamura
- Tsukuba Institute, BoZo Research Center Inc., 8 Okubo, Tsukuba-shi, Ibaraki, 300-2611, Japan
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24
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Zhang S, Wang C, Zhong W, Kemp AH, Guo M, Killpartrick A. Polymerized Whey Protein Concentrate-Based Glutathione Delivery System: Physicochemical Characterization, Bioavailability and Sub-Chronic Toxicity Evaluation. Molecules 2021; 26:1824. [PMID: 33805036 PMCID: PMC8037743 DOI: 10.3390/molecules26071824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 03/20/2021] [Accepted: 03/22/2021] [Indexed: 11/20/2022] Open
Abstract
Glutathione (GSH) is a powerful antioxidant, but its application is limited due to poor storage stability and low bioavailability. A novel nutrient encapsulation and delivery system, consisting of polymerized whey protein concentrate and GSH, was prepared and in vivo bioavailability, antioxidant capacity and toxicity were evaluated. Polymerized whey protein concentrate encapsulated GSH (PWPC-GSH) showed a diameter of roughly 1115 ± 7.07 nm (D50) and zeta potential of 30.37 ± 0.75 mV. Differential scanning calorimetry (DSC) confirmed that GSH was successfully dispersed in PWPC particles. In vivo pharmacokinetics study suggested that PWPC-GSH displayed 2.5-times and 2.6-fold enhancement in maximum concentration (Cmax) and area under the concentration-time curve (AUC) as compared to free GSH. Additionally, compared with plasma of mice gavage with free GSH, significantly increased antioxidant capacity of plasma in mice with PWPC-GSH was observed (p < 0.05). Sub-chronic toxicity evaluation indicated that no adverse toxicological reactions related to oral administration of PWPC-GSH were observed on male and female rats with a diet containing PWPC-GSH up to 4% (w/w). Data indicated that PWPC may be an effective carrier for GSH to improve bioavailability and antioxidant capacity.
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Affiliation(s)
- Siyu Zhang
- Key Laboratory of Dairy Science of Ministry of Education, Northeast Agricultural University, Harbin 150030, China; (S.Z.); (M.G.)
| | - Cuina Wang
- Department of Food Science, Jilin University, Changchun 130000, China; (C.W.); (W.Z.)
| | - Weigang Zhong
- Department of Food Science, Jilin University, Changchun 130000, China; (C.W.); (W.Z.)
| | - Alyssa H. Kemp
- Department of Nutrition and Food Sciences, University of Vermont, Burlington, VT 05403, USA;
| | - Mingruo Guo
- Key Laboratory of Dairy Science of Ministry of Education, Northeast Agricultural University, Harbin 150030, China; (S.Z.); (M.G.)
- Department of Nutrition and Food Sciences, University of Vermont, Burlington, VT 05403, USA;
| | - Adam Killpartrick
- Department of Nutrition and Food Sciences, University of Vermont, Burlington, VT 05403, USA;
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25
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Cha SB, Li Y, Bae JS, Song SW, Lee IC, Kim JC. Evaluation of 13-week subchronic toxicity of Platycodon grandiflorus (Jacq.) A.DC. root extract in rats. JOURNAL OF ETHNOPHARMACOLOGY 2021; 267:113621. [PMID: 33246125 DOI: 10.1016/j.jep.2020.113621] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 10/21/2020] [Accepted: 11/23/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Platycodi radix is widely used in traditional herbal medicine for bronchitis, asthma, pulmonary tuberculosis, hypertension, hyperlipidemia, and diabetes. However, data on safety of Platycodi radix are insufficient. AIM OF THE STUDY The present study was performed to evaluate the potential subchronic toxicity of Platycodi radix water extract through a 13-week repeated oral dose experiment in Sprague-Dawley rats. MATERIALS AND METHODS Forty male and 40 female rats were randomly assigned to four experimental groups: three treatment groups receiving 300, 1000, and 3000 mg/kg/day of Platycodi radix water extract and a vehicle control group receiving sterile distilled water for 13 weeks. RESULTS Repeated oral administration of the Platycodi radix water extract to rats resulted in an increased incidence of centrilobular hepatocellular hypertrophy in the liver, diffuse follicular cell hypertrophy in the thyroid gland, and squamous hyperplasia of the limiting ridge in the stomach at dose levels of ≥500 mg/kg/day of both genders. However, these findings are considered be adaptive non-adverse changes because these findings were observed without organ weight change or clinical pathology alterations. No treatment-related effects on clinical signs, body weight, food and water consumption, ophthalmic examination, urinalysis, hematology, serum biochemistry, necropsy findings, and organ weights were observed at any dose tested. CONCLUSION Under the present experimental conditions, the no-observed-adverse-effect level of the Platycodi radix water extract was considered to be ≥ 3000 mg/kg/day in rats, and no target organs were identified.
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Affiliation(s)
- Seung-Beom Cha
- Nonclinical Research Center, ChemOn Inc., Yongin, 17162, Republic of Korea; College of Veterinary Medicine (BK21 Plus Project Team), Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Yinghua Li
- Nonclinical Research Center, ChemOn Inc., Yongin, 17162, Republic of Korea.
| | - Jin-Sook Bae
- Nonclinical Research Center, ChemOn Inc., Yongin, 17162, Republic of Korea.
| | - Si-Whan Song
- Nonclinical Research Center, ChemOn Inc., Yongin, 17162, Republic of Korea.
| | - In-Chul Lee
- Natural Product Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, 56212, Republic of Korea.
| | - Jong-Choon Kim
- College of Veterinary Medicine (BK21 Plus Project Team), Chonnam National University, Gwangju, 61186, Republic of Korea.
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26
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Cha SB, Kim HS, Bae JS, Song SW, Lim JO, Kim JC. A 13-week subchronic toxicity study of a Dioscorea Rhizome water extract in rats. Regul Toxicol Pharmacol 2020; 120:104844. [PMID: 33359266 DOI: 10.1016/j.yrtph.2020.104844] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/01/2020] [Accepted: 12/15/2020] [Indexed: 01/02/2023]
Abstract
Dioscorea Rhizome is widely used as a traditional herbal medicine to treat asthma, diarrhea, cough, bronchitis, spermatorrhea, leukorrhea, and rheumatoid arthritis. This study investigated the potential subchronic toxicity of a D. Rhizome water extract (DRWE) after repeated oral administration at 0, 800, 2000, and 5000 mg/kg/day in rats for 13 weeks. During the study period, clinical signs, mortality, body weight, food consumption, water consumption, urinalysis, ophthalmoscopy, hematology, serum biochemistry, gross pathology, organ weights, and histopathology were examined. The 13-week repeated oral administration of DRWE to rats resulted in an increased incidence of zona glomerulosa hypertrophy and hyperplasia in the adrenal gland at dose levels of ≥2000 mg/kg/day in both sexes. However, these findings are considered as non-adverse adaptive changes because of minimal histological changes in the lesions, which were not accompanied by any corresponding alterations in serum electrolytes and adrenal gland weight. No treatment-related adverse effects on clinical signs, body weight, food and water consumption, ophthalmic examination, urinalysis, hematology, serum biochemistry, necropsy findings, and organ weights were observed at any dose tested. Under the present experimental conditions, the no-observed-adverse-effect level of the DRWE was considered to be 5000 mg/kg/day in both sexes, and no target organs were identified.
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Affiliation(s)
- Seung-Beom Cha
- Nonclinical Research Center, ChemOn Inc., Yongin, 17162, Republic of Korea; College of Veterinary Medicine (BK21 Plus Project Team), Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Hak-Soo Kim
- Nonclinical Research Center, ChemOn Inc., Yongin, 17162, Republic of Korea
| | - Jin-Sook Bae
- Nonclinical Research Center, ChemOn Inc., Yongin, 17162, Republic of Korea
| | - Si-Whan Song
- Nonclinical Research Center, ChemOn Inc., Yongin, 17162, Republic of Korea
| | - Je-Oh Lim
- College of Veterinary Medicine (BK21 Plus Project Team), Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Jong-Choon Kim
- College of Veterinary Medicine (BK21 Plus Project Team), Chonnam National University, Gwangju, 61186, Republic of Korea.
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27
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Tiwari R, Siddiqui MH, Mahmood T, Farooqui A, Bagga P, Ahsan F, Shamim A. An exploratory analysis on the toxicity & safety profile of Polyherbal combination of curcumin, quercetin and rutin. CLINICAL PHYTOSCIENCE 2020. [DOI: 10.1186/s40816-020-00228-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Abstract
Background
Curcumin, quercetin and rutin are flavonoids having strong antioxidant potential, individually used in treatment of numerous ailments. The safety assessment of each of them is already established but no toxicological assessment has been done that would guarantee the safe use of these three flavonoids when used as a polyherbal combination (PHC). The aim of this study to evaluate the possible toxicological effect of polyherbal combination of these three flavonoids in female Swiss albino mice.
Methods
In acute toxicity study, the oral dose of poly herbal combination was administered to four groups stepwise in single dose and general behaviour, adverse effects and mortality were determined up to 14 days and compared to normal group. In sub-acute study, the tested poly herbal combination was administered orally for 28 days to the four experimental groups and their body weight was measured each alternate day from the first day of dosing. On 29th day the final body weight was recorded and euthanized by using thiopentone sodium, blood was collected and later haematological, lipid profile, biochemical parameter was evaluated and compared to normal group.
Result
In acute toxicity study, no abnormal general behaviour, adverse effects were reported. No significant changes were reported in body weight, haematological, lipid profile, biochemical parameter in sub-acute toxicity study. No mortality was reported in both the study. Histopathological examination revealed no alterations in clinical signs or organ weight at any dose.
Conclusion
The result concludes that the oral administration of Polyherbal combination did not produce any significant toxic effect in swiss albino mice. Hence, the Polyherbal combination can be utilized safely for therapeutic use.
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Kim KT, Cho DW, Yang MJ, Kim DH, Shin SH, Hwang JH, Woo DH, Shin DG, Seo JH, Yang YS, Han SC. Thirteen-week oral toxicity study of fermented ginseng, GBCK25, in Sprague-Dawley rats. Regul Toxicol Pharmacol 2020; 118:104812. [PMID: 33122046 DOI: 10.1016/j.yrtph.2020.104812] [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: 03/16/2020] [Revised: 09/12/2020] [Accepted: 10/23/2020] [Indexed: 10/23/2022]
Abstract
Ginseng (Panax ginseng) is commonly used in Asia as a medicinal herb. In particular, fermented ginseng, GBCK25, has been recently developed to increase ginsenoside absorption. It also has other beneficial biological effects such as hemodynamic and anti-inflammation functions. Here, we investigated the potential toxicity of GBCK25 in Sprague-Dawley rats following 13 weeks of GBCK25 treatment by oral gavage at doses of 250, 500, or 1000 mg/kg/day and reversible toxic effects over a 4-week recovery phase. Ten male and female rats per group were randomly allocated to the main toxicology groups and five male and female rats per group were allocated to the 0 and 1000 mg/kg/day recovery groups, respectively. There was no mortality; significant clinical toxicity or microscopic findings; and changes in body weight, food consumption, hematological parameters, serum biochemistry, or absolute and relative organ weights in any of the groups. In conclusion, there were no toxicological changes upon repeated oral gavage of GBCK25 at doses of 250, 500, or 1000 mg/kg/day in Sprague-Dawley rats over 13 weeks. The no-observed-adverse-effect level of GBCK25 was 1000 mg/kg/day in both sexes of Sprague-Dawley rat.
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Affiliation(s)
- Kyung-Tai Kim
- Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeollabuk-Do, 56212, Republic of Korea
| | - Doo-Wan Cho
- Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeollabuk-Do, 56212, Republic of Korea
| | - Mi-Jin Yang
- Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeollabuk-Do, 56212, Republic of Korea
| | - Da-Hee Kim
- Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeollabuk-Do, 56212, Republic of Korea
| | - Seung-Hyuk Shin
- Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeollabuk-Do, 56212, Republic of Korea
| | - Jeong Ho Hwang
- Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeollabuk-Do, 56212, Republic of Korea
| | - Dong Ho Woo
- Research Center for Convergence Toxicology, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, South Korea
| | - Dong Gyu Shin
- Research & Development Center of GENERAL BIO Co., Ltd, 254, Yongtusan-ro, Songdong-myeon, Namwon City, Jeollabuk-Do, 55793, Republic of Korea
| | - Jeong Hun Seo
- Research & Development Center of GENERAL BIO Co., Ltd, 254, Yongtusan-ro, Songdong-myeon, Namwon City, Jeollabuk-Do, 55793, Republic of Korea
| | - Young-Su Yang
- Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeollabuk-Do, 56212, Republic of Korea.
| | - Su-Cheol Han
- Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeollabuk-Do, 56212, Republic of Korea.
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Preece KE, Glávits R, Murbach T, Endres JR, Hirka G, Vértesi A, Béres E, Szakonyiné IP. A toxicological evaluation of monomethylsilanetriol (MMST) stabilized in acacia gum, a novel silicon preparation. Regul Toxicol Pharmacol 2020; 117:104782. [PMID: 32905813 DOI: 10.1016/j.yrtph.2020.104782] [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: 03/06/2020] [Revised: 06/25/2020] [Accepted: 09/01/2020] [Indexed: 10/23/2022]
Abstract
Monomethylsilanetriol (MMST), a silicon-containing compound, has been sold in dietary supplements. However, toxicological studies on its safety profile are not readily available. To assess the safety of MMST stabilized in acacia gum, a novel delivery form of MMST, in accordance with internationally accepted standards, the genotoxic potential and repeated-dose oral toxicity of Living Silica® Acacia Gum Stabilized Monomethylsilanetriol (formerly known as Orgono Acacia Gum Powder®), a food grade product consisting of 80 ± 10% acacia gum and 2.8% (SD ± 10%) elemental silicon from MMST, was investigated. A bacterial reverse mutation test, an in vitro mammalian chromosomal aberration test, an in vivo mammalian micronucleus test, and a 90-day repeated-dose oral toxicity study in rats were performed. No evidence of mutagenicity or genotoxic activity was observed under the applied test systems. In the 90-day study, male and female Hsd.Han Wistar rats were administered daily doses of 0, 500, 1000, and 2000 mg/kg bw/day by gavage. No mortality or treatment-related adverse effects were observed, and no target organs were identified. Therefore, the no observed adverse effects level (NOAEL) was determined as 2000 mg/kg bw/day (201 mg MMST/kg bw/day), the highest dose tested.
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Affiliation(s)
- Kayla E Preece
- AIBMR Life Sciences, Inc, 1425 Broadway, Suite 458, Seattle, WA, 98122, USA.
| | - Róbert Glávits
- Toxi-Coop Zrt, Magyar Jakobinusok tere 4/B, H-1122, Budapest, Hungary.
| | - Tim Murbach
- AIBMR Life Sciences, Inc, 1425 Broadway, Suite 458, Seattle, WA, 98122, USA.
| | - John R Endres
- AIBMR Life Sciences, Inc, 1425 Broadway, Suite 458, Seattle, WA, 98122, USA.
| | - Gábor Hirka
- Toxi-Coop Zrt, Magyar Jakobinusok tere 4/B, H-1122, Budapest, Hungary.
| | - Adél Vértesi
- Toxi-Coop Zrt, Magyar Jakobinusok tere 4/B, H-1122, Budapest, Hungary.
| | - Erzsébet Béres
- Toxi-Coop Zrt, Magyar Jakobinusok tere 4/B, H-1122, Budapest, Hungary.
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Lim JO, Jung TY, Lee SJ, Park SW, Kim WI, Park SH, Kim JH, Heo JD, Kim YB, Shin IS, Kim JC. Evaluation of 28-day repeated oral dose toxicity of aluminum chloride in rats. Drug Chem Toxicol 2020; 45:1088-1097. [PMID: 32815395 DOI: 10.1080/01480545.2020.1808670] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The present study investigated the potential adverse effects of aluminum chloride (AlCl3) following a 4-week repeated oral administration in Sprague-Dawley rats. The test article was administered once daily by gavage to male and female rats at dose levels of 0, 100, 300, and 900 mg/kg/day for 4 weeks. After administration of AlCl3 at 900 mg/kg/day, treatment-related systemic toxicity manifested as significant increases in salivation incidence, neutrophil percentage, reticulocytes, serum triglyceride, adrenal gland and liver weights, and single-hepatocyte necrosis, as well as significant decreases in body weight gain, food intake, hemoglobin, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration (MCHC), lymphocyte percentage, serum total protein and albumin, and thymus weight in male rats; and significant increases in salivation incidence, serum triglyceride, and liver weight, as well as a significant decrease in lymphocyte percentage in female rats. At 300 mg/kg/day, a significant decrease in MCHC was found in male rats, but not in female rats. However, this finding was not toxicologically significant because the reduction was minimal and was not accompanied by changes in any other parameters. No treatment-related effects were observed in the 100 mg/kg/day group of both genders. Under the experimental conditions of this study, the target organs of AlCl3 were determined to be the blood, liver, and thymus in rats. The no-observed-adverse-effect level was found to be 300 mg/kg/day in rats of both genders.
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Affiliation(s)
- Je-Oh Lim
- College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Tae-Yang Jung
- College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Se-Jin Lee
- College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - So-Won Park
- College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Woong-Il Kim
- College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Sung-Hyeuk Park
- College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Je-Hein Kim
- Bioenvironmental Science & Technology Division, Korea Institute of Toxicology, Jinju, Republic of Korea
| | - Jeong-Doo Heo
- Bioenvironmental Science & Technology Division, Korea Institute of Toxicology, Jinju, Republic of Korea
| | - Yong-Bum Kim
- Department of Advanced Toxicology Research, Korea Institute of Toxicology, Daejeon, Republic of Korea
| | - In-Sik Shin
- College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Jong-Choon Kim
- College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
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Lee SY, Han JH, Lee EK, Kim YK, Hwang SA, Lee SH, Kim M, Cho GY, Hwang JH, Kim SJ, Yoo JG, Cho SK, Lee KJ, Cho WK. Structural and functional characterization of recombinant human growth hormone isolated from transgenic pig milk. PLoS One 2020; 15:e0236788. [PMID: 32735629 PMCID: PMC7394428 DOI: 10.1371/journal.pone.0236788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 07/14/2020] [Indexed: 12/04/2022] Open
Abstract
This study aimed to establish and reproduce transgenic pigs expressing human growth hormone (hGH) in their milk. We also aimed to purify hGH from the milk, to characterize the purified protein, and to assess the potential of our model for mass production of therapeutic proteins using transgenic techniques. Using ~15.5 L transgenic pig milk, we obtained proteins with ≥ 99% purity after three pre-treatments and five column chromatography steps. To confirm the biosimilarity of our milk-derived purified recombinant hGH (CGH942) with commercially available somatropin (Genotropin), we performed spectroscopy, structural, and biological analyses. We observed no difference between the purified protein and Genotropin samples. Furthermore, rat models were used to assess growth promotion potential. Our results indicate that CGH942 promotes growth, by increasing bone development and body weight. Toxicity assessments revealed no abnormal findings after 4 weeks of continuous administration and 2 weeks of recovery. The no-observed-adverse-effect level for both males and females was determined to be 0.6 mg/kg/day. Thus, no toxicological differences were observed between commercially available somatropin and CGH942 obtained from transgenic pig milk. In conclusion, we describe a transgenic technique using pigs, providing a new platform to produce human therapeutic proteins.
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Affiliation(s)
- So-Young Lee
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
- * E-mail:
| | - Joo-Hee Han
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
- Department of Animal Science, College of Natural Resources and Life Science, Pusan National University, Miryang-si, Gyeongsangnam-do, Korea
| | - Eun-Kyeong Lee
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
| | - Young Kyu Kim
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
| | - Seo-Ah Hwang
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
| | - Sung-Hyun Lee
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
| | - Maria Kim
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
| | - Gye Yoon Cho
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
| | - Jae-Ha Hwang
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
| | - Su-Jin Kim
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
| | - Jae-Gyu Yoo
- Animal Diseases and Biosecurity Team, National Institute of Animal Science, Rural Development Administration, Wanju-gun, Jeollabuk-do, Korea
| | - Seong-Keun Cho
- Department of Animal Science, College of Natural Resources and Life Science, Pusan National University, Miryang-si, Gyeongsangnam-do, Korea
| | - Kyung-Ju Lee
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
| | - Weon-Ki Cho
- CHO-A Biotechnology Research Institute, CHO-A Pharmaceutical Company, Yeoju-si, Gyeonggi-do, Korea
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Kim SY, Kwak KW, Park ES, Yoon HJ, Kim YS, Park K, Kim E, Kim SD. Evaluation of Subchronic Oral Dose Toxicity of Freeze-Dried Skimmed Powder of Zophobas atratus Larvae (frpfdZAL) in Rats. Foods 2020; 9:foods9080995. [PMID: 32722267 PMCID: PMC7466282 DOI: 10.3390/foods9080995] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/17/2020] [Accepted: 07/21/2020] [Indexed: 12/18/2022] Open
Abstract
Zophobas atratus (Coleoptera: Tenebrionidae), the giant mealworm beetle, is known as an edible insect containing a high protein content which may serve as new sources of human food and animal feed. However, potential toxicity and food safety analyses of Z. atratus have not been previously investigated. Therefore, in this study, we aimed to evaluate toxicity of freeze-dried skimmed powder of Z. atratus larvae (frpfdZAL), known as the super mealworm. Toxicological assessments were performed at the doses of 1250, 2500, and 5000 mg/kg/day in a 2- and a 13-week oral repeated-dose toxicity study of frpfdZAL in male and female Sprague-Dawley (SD) rats in accordance with the Organisation for Economic Co-operation and Development (OECD) guidelines and the principles of Good Laboratory Practice (GLP). No toxicological changes in clinical signs, body weights, water and food consumption, urinalysis, hematology, clinical biochemistry, gross findings, and histopathological examinations were observed. In conclusion, the no-observed-adverse-effect level (NOAEL) of frpfdZAL was 5000 mg/kg/day and target organ was not identified in both sexes of rats. In addition, frpfdZAL did not induce increases of serum ImmunoglobulinE (IgE), an identifier of allergic reactions in rats. Collectively, these results suggest that frpfdZAL is safe with no adverse effects, and able to be applied as an edible ingredient or other biological uses.
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Affiliation(s)
- Sun Young Kim
- Industrial Insect Division, Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, Korea; (S.Y.K.); (K.-W.K.); (H.J.Y.); (Y.-S.K.); (K.P.); (E.K.)
| | - Kyu-Won Kwak
- Industrial Insect Division, Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, Korea; (S.Y.K.); (K.-W.K.); (H.J.Y.); (Y.-S.K.); (K.P.); (E.K.)
| | - Eun-Sung Park
- Nonclinical Research Institute, Chemon Inc., 240, Nampyeong-ro, Yangji-myeon, Cheoin-gu, Yongin-si, Gyeonggi-do 17162, Korea;
| | - Hyung Joo Yoon
- Industrial Insect Division, Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, Korea; (S.Y.K.); (K.-W.K.); (H.J.Y.); (Y.-S.K.); (K.P.); (E.K.)
| | - Yong-Soon Kim
- Industrial Insect Division, Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, Korea; (S.Y.K.); (K.-W.K.); (H.J.Y.); (Y.-S.K.); (K.P.); (E.K.)
| | - Kwanho Park
- Industrial Insect Division, Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, Korea; (S.Y.K.); (K.-W.K.); (H.J.Y.); (Y.-S.K.); (K.P.); (E.K.)
| | - Eunsun Kim
- Industrial Insect Division, Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, Korea; (S.Y.K.); (K.-W.K.); (H.J.Y.); (Y.-S.K.); (K.P.); (E.K.)
| | - Sun-Don Kim
- Nonclinical Research Institute, Chemon Inc., 240, Nampyeong-ro, Yangji-myeon, Cheoin-gu, Yongin-si, Gyeonggi-do 17162, Korea;
- Correspondence:
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Song J, Kim YS, Lee D, Kim H. Safety evaluation of root extract of Pueraria lobata and Scutellaria baicalensis in rats. BMC Complement Med Ther 2020; 20:226. [PMID: 32680504 PMCID: PMC7368675 DOI: 10.1186/s12906-020-02998-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 06/22/2020] [Indexed: 12/11/2022] Open
Abstract
Background The roots of Pueraria lobata and Scutellaria baicalensis, herbal medicines with a long history of widespread use, have been traditionally prescribed in combination to treat stroke, diabetes, and acute infectious diarrhea in East Asia. Nevertheless, toxicological data on these herbs and their combination are limited. This study investigated the acute and 13-week subchronic toxicity of root extract of P. lobata and S. baicalensis (HT047) for stroke treatment in male and female Sprague-Dawley rats. Methods In the acute toxicity study, HT047 was administered orally at a single dose of 5000 mg/kg. In the subchronic toxicity study, HT047 was administered orally at repeated daily doses of 800, 2000, and 5000 mg/kg/day for 13 weeks, followed by a 4-week recovery period. Results In the acute toxicity study, there were no deaths or toxicologically significant changes in clinical signs, body weight, and necropsy findings. In the subchronic toxicity study, HT047 at all doses caused no death and no treatment-related adverse effects on food consumption; organ weight; ophthalmologic, urinalysis, and hematological parameters; and necropsy findings of both rat sexes. There were some treatment-related alterations in clinical signs, body weight, and serum biochemistry and histopathological parameters; however, these changes were not considered toxicologically significant because they were resolved during the recovery period or resulted from the pharmacological effects of P. lobata and S. baicalensis. Conclusions The oral approximate lethal dose (the lowest dose that causes mortality) of HT047 was greater than 5000 mg/kg in male and female rats. The oral no-observed-adverse-effect level of HT047 was greater than 5000 mg/kg/day in rats of both sexes, and no target organs were identified. The present findings support the safety of an herbal extract of P. lobata and S. baicalensis as a therapeutic agent for stroke and further confirm the safety of the combined use of P. lobata and S. baicalensis in clinical practice.
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Affiliation(s)
- Jungbin Song
- Department of Herbal Pharmacology, College of Korean Medicine, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
| | - Young-Sik Kim
- Department of Herbal Pharmacology, College of Korean Medicine, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
| | - Donghun Lee
- Department of Herbal Pharmacology, College of Korean Medicine, Gachon University, 1342 Seongnamdae-ro, Sujeong-gu, Seongnam-si, Gyeonggi-do, 13120, Republic of Korea.
| | - Hocheol Kim
- Department of Herbal Pharmacology, College of Korean Medicine, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea.
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Kang YE, Seong KY, Yim SG, Lee Y, An SM, Kim SC, Kim K, An BS, Lee KS, Yang SY. Nanochannel-driven rapid capture of sub-nanogram level biomarkers for painless preeclampsia diagnosis. Biosens Bioelectron 2020; 163:112281. [PMID: 32568694 DOI: 10.1016/j.bios.2020.112281] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 04/28/2020] [Accepted: 05/06/2020] [Indexed: 12/28/2022]
Abstract
Preeclampsia (PE) is a pregnancy-specific hypertensive syndrome recognized as the leading cause of maternal and fetal morbidity and mortality worldwide. Painful blood-collection procedures or low accuracy of non-invasive approaches require faster, patient-friendly, and more sensitive diagnostic technologies. Here we report a painless, highly sensitive detection platform using nanoporous microneedles (nMNs) that enables rapid capture of biomarkers present at sub-nanogram levels. The highly porous nanostructures on the nMN surface were prepared by anodization of aluminum MN and then functionalized by immobilization of capture antibodies to detect target biomarkers based on an immunoassay method. The immuno-functionalized nMN array demonstrated rapid capture of an estrogen (E2) biomarker for PE following a 1-min incubation and exhibited a concentration-dependent change in fluorescence intensity over the E2 range of 0.5 ng mL-1 to 1000 ng mL-1 after treatment with fluorescence-detection antibodies. Remarkably, the nMN patch selectively detected sub-nanogram-levels of E2 in subcutaneous interstitial fluid from rats with increased diagnostic accuracy as compared with commercial immunoassay kits. This bio-functionalized nMN platform showed improved biosensing capability for multiple PE-related biomarkers, including hormones and proteins. Furthermore, this painless method demonstrated efficacy as a point-of-need diagnostic platform using portable smartphone-based fluorescence microscope to obtain fluorescence images of biomarker-captured nMN arrays.
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Affiliation(s)
- Ye-Eun Kang
- Department of Biomaterials Science, Pusan National University, Miryang, 50463, Republic of Korea
| | - Keum-Yong Seong
- Department of Biomaterials Science, Pusan National University, Miryang, 50463, Republic of Korea
| | - Sang-Gu Yim
- Department of Biomaterials Science, Pusan National University, Miryang, 50463, Republic of Korea
| | - Yechan Lee
- Department of Biomaterials Science, Pusan National University, Miryang, 50463, Republic of Korea
| | - Sung-Min An
- Department of Biomaterials Science, Pusan National University, Miryang, 50463, Republic of Korea
| | - Seung Chul Kim
- Department of Obstetrics and Gynecology, Pusan National University School of Medicine, Busan, 49241, Republic of Korea
| | - Kyujung Kim
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Beum-Soo An
- Department of Biomaterials Science, Pusan National University, Miryang, 50463, Republic of Korea
| | - Kyu-Sup Lee
- Department of Obstetrics and Gynecology, Pusan National University School of Medicine, Busan, 49241, Republic of Korea
| | - Seung Yun Yang
- Department of Biomaterials Science, Pusan National University, Miryang, 50463, Republic of Korea.
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Zhao YL, Su M, Shang JH, Wang X, Njateng GSS, Bao GL, Ma J, Sun QD, Yuan F, Wang JK, Luo XD. Acute and Chronic Toxicity of Indole Alkaloids from Leaves of Alstonia scholaris (L.) R. Br. in Mice and Rats. NATURAL PRODUCTS AND BIOPROSPECTING 2020; 10:77-88. [PMID: 32236848 PMCID: PMC7176796 DOI: 10.1007/s13659-020-00237-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 03/19/2020] [Indexed: 05/04/2023]
Abstract
Alstonia scholaris (L.) R. Br. (Apocynaceae) is an evergreen tree that has been used to treat lung diseases. In this study, the toxicity profile of indole alkaloids from leaves of A. scholaris was investigated. In acute toxicity tests, mice were administered total alkaloids (TA) and five indole alkaloids. In a chronic toxicity test, rats were continuously administered TA (50, 100, and 300 mg/kg bw) for 13 weeks, followed by a 4-week recovery. A single administration of TA affected the behavior of mice, and at 12.8 g/kg bw, prone position, shortness of breath, wheezing, and convulsion were observed. The half-lethal dose (LD50) in mice was 5.48 g/kg bw, almost 2740 times the clinical dose in humans. Among the five indole alkaloids, the maximum tolerance dose in mice ranged from 0.75 to 4 g/kg bw. The TA-treated rats did not die and showed no adverse effects or dose-dependent changes in weight or food and water consumption, despite fluctuations in hematological and biochemical parameters compared with historical data. Furthermore, both gross and histopathological observations revealed no abnormalities in any organ. With daily oral administration to rats, the non-observed-adverse-effect-level of TA was 100 mg/kg bw. The results indicate that TA is safe for clinical use.
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Affiliation(s)
- Yun-Li Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China
| | - Min Su
- Yunnan Institute of Medical Material, Kunming, 650111, People's Republic of China
| | - Jian-Hua Shang
- Yunnan Institute of Medical Material, Kunming, 650111, People's Republic of China
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China
| | - Xia Wang
- Yunnan Institute of Medical Material, Kunming, 650111, People's Republic of China
| | - Guy Sedar Singor Njateng
- Laboratory of Microbiology and Antimicrobial Substances, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Guang-Lei Bao
- Yunnan Institute of Medical Material, Kunming, 650111, People's Republic of China
| | - Jia Ma
- Yunnan Institute of Medical Material, Kunming, 650111, People's Republic of China
| | - Qing-Di Sun
- Jiangsu Nhwa Pharmaceutical Co., Ltd, Xuzhou, 221009, People's Republic of China
| | - Fang Yuan
- Yunnan Institute of Medical Material, Kunming, 650111, People's Republic of China
| | - Jing-Kun Wang
- Yunnan Institute of Medical Material, Kunming, 650111, People's Republic of China.
| | - Xiao-Dong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China.
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Lee MJ, Nho JH, Yang BD, Park H, Lee HJ, Lee KH, Jang JH, Jung HK, Kim SR, Cho HW, Park HS, Lim JO, Kim JC. Subchronic toxicity evaluation of ethanol extract of Cassia tora L. seeds in rats. Regul Toxicol Pharmacol 2019; 109:104487. [PMID: 31585136 DOI: 10.1016/j.yrtph.2019.104487] [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] [Received: 07/02/2019] [Revised: 08/29/2019] [Accepted: 09/30/2019] [Indexed: 11/25/2022]
Abstract
Cassia tora Linn. is an annual or perennial plant of the Fabaceae/Leguminosae family. It is used in traditional medicine for various biological activities including anti-constipation, anti-inflammatory, visual acuity, and hepato-protective activities. The present study was carried out to investigate the potential toxicity of C. tora L. seed ethanol extract (CTSEE) following a 13-week repeated oral administration to Sprague-Dawley rats. CTSEE was administered orally to male and female rats for 13 weeks at 0 (control), 500, 1000, and 2000 mg/kg/day (n = 10, for male and female rats for each dose). Additional recovery groups from the control group and high dose group were observed for a 4-week recovery period. At the end of the treatment and recovery periods, animals were sacrificed, and their organs were weighed and blood samples collected. There were no treatment-related adverse effects in clinical signs, body weight, food consumption, estrous cycle, sperm parameters, urinalysis, hematology, serum biochemistry, necropsy findings, organ weight, and histopathology at any doses tested. Under the present experimental conditions, the no-observed-adverse-effect level of the CTSEE was >2000 mg/kg/day in both genders, and no target organs were identified.
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Affiliation(s)
- Mu-Jin Lee
- Division of Tradition Korean Medicine Research, National Institute for Korean Medicine Development, Jangheung, Jeonnam, 59338, Republic of Korea; College of Veterinary Medicine BK21 Plus Project Team, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Jong-Hyun Nho
- Division of Tradition Korean Medicine Research, National Institute for Korean Medicine Development, Jangheung, Jeonnam, 59338, Republic of Korea
| | - Beo-Deul Yang
- Division of Tradition Korean Medicine Research, National Institute for Korean Medicine Development, Jangheung, Jeonnam, 59338, Republic of Korea
| | - Ho Park
- Division of Tradition Korean Medicine Research, National Institute for Korean Medicine Development, Jangheung, Jeonnam, 59338, Republic of Korea
| | - Hyun-Joo Lee
- Division of Tradition Korean Medicine Research, National Institute for Korean Medicine Development, Jangheung, Jeonnam, 59338, Republic of Korea
| | - Ki-Ho Lee
- Division of Tradition Korean Medicine Research, National Institute for Korean Medicine Development, Jangheung, Jeonnam, 59338, Republic of Korea
| | - Ji-Hun Jang
- Division of Tradition Korean Medicine Research, National Institute for Korean Medicine Development, Jangheung, Jeonnam, 59338, Republic of Korea
| | - Ho-Kyung Jung
- Division of Tradition Korean Medicine Research, National Institute for Korean Medicine Development, Jangheung, Jeonnam, 59338, Republic of Korea
| | - Sun-Ra Kim
- Division of Tradition Korean Medicine Research, National Institute for Korean Medicine Development, Jangheung, Jeonnam, 59338, Republic of Korea
| | - Hyun-Woo Cho
- Division of Tradition Korean Medicine Research, National Institute for Korean Medicine Development, Jangheung, Jeonnam, 59338, Republic of Korea.
| | - Hae-Sung Park
- Health Care Institute, Korea Testing and Research Institute, Hwasun, Jeonnam, 58141, Republic of Korea
| | - Je-Oh Lim
- College of Veterinary Medicine BK21 Plus Project Team, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Jong-Choon Kim
- College of Veterinary Medicine BK21 Plus Project Team, Chonnam National University, Gwangju, 61186, Republic of Korea.
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Yun JW, Kim SH, Kim YS, Choi EJ, You JR, Cho EY, Yoon JH, Kwon E, Kim HC, Jang JJ, Park JS, Che JH, Kang BC. Preclinical study of safety of Dendropanax morbifera Leveille leaf extract: General and genetic toxicology. JOURNAL OF ETHNOPHARMACOLOGY 2019; 238:111874. [PMID: 30986520 DOI: 10.1016/j.jep.2019.111874] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 04/09/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGY RELEVANCE Dendropanax morbifera Leveille (DM) has been used in traditional medicines for infectious and skin diseases, and dysmenorrhea. It exhibits a diverse therapeutic potential including anti-cancer, anti-thrombotic, anti-diabetic, anti-oxidant, and anti-inflammatory activities. AIM OF THE STUDY Despite promising health benefits of DM, knowledge of its potential adverse effects is very limited. The current study focused on the investigation of subchronic toxicity and genotoxicity of extract obtained from DM according to the test guidelines published by the Organization for Economic Cooperation and Development. MATERIALS AND METHODS We conducted a toxicological evaluation of DM extracts using 14-day repeated-dose toxicity study and 13-week repeated-dose toxicity study in Sprague-Dawley rats administered orally at doses of 500, 1000, or 2000 mg/kg/day. The clastogenicity of DM extract was also evaluated by in vitro chromosome aberration assay and in vivo micronucleus assay. RESULTS Assessment of subchronic toxicity of DM extract by oral administration in rats revealed unremarkable treatment-related findings with respect to food/water consumption, body weight, mortality, urinalysis, hematology, serum biochemistry, necropsy, organ weight and histopathology at doses of 500, 1000, and 2000 mg/kg. Accordingly, the level of no-observed-adverse-effect for DM extract in 13-week subchronic toxicity study was considered to be 2000 mg/kg/day in rats. The data observed from in vitro chromosome aberration assay and in vivo micronucleus assay exclude any clastogenicity of DM extract. CONCLUSION The results suggest that the oral consumption of DM extract has no adverse effects in humans and represents a safe traditional medicine.
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Affiliation(s)
- Jun-Won Yun
- Department of Biotechnology, The Catholic University of Korea, Bucheon, Republic of Korea
| | - Seung-Hyun Kim
- Department of Experimental Animal Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Yun-Soon Kim
- Department of Experimental Animal Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Eun Jin Choi
- Jeonnam Bioindustry Foundation, Jeonnam Institute of Natural Resources Research (JINR), Jangheung-gun, Jeollanam-do, Republic of Korea
| | - Ji-Ran You
- Department of Experimental Animal Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Eun-Young Cho
- Department of Experimental Animal Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jung-Hee Yoon
- Department of Experimental Animal Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Euna Kwon
- Department of Experimental Animal Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Hyoung-Chin Kim
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea
| | - Ja-June Jang
- Department of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jin-Sung Park
- Department of Experimental Animal Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jeong-Hwan Che
- Biomedical Center for Animal Resource and Development, Seoul National University College of Medicine, Seoul, Republic of Korea.
| | - Byeong-Cheol Kang
- Department of Experimental Animal Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea; Biomedical Center for Animal Resource and Development, Seoul National University College of Medicine, Seoul, Republic of Korea; Graduate School of Translational Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea; Designed Animal and Transplantation Research Institute, Institute of GreenBio Science Technology, Seoul National University, Pyeongchang-gun, Gangwon-do, Republic of Korea.
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Moon JN, Kim JK, Lee S, Kwon JH. Antihypertensive effects of Korean wild simulated ginseng (Sanyangsam) extracts in spontaneously hypertensive rats. Food Sci Biotechnol 2019; 28:1563-1569. [PMID: 31695956 DOI: 10.1007/s10068-019-00617-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 04/14/2019] [Accepted: 04/17/2019] [Indexed: 11/25/2022] Open
Abstract
Ginseng possesses a wide spectrum of medicinal effects and has widely been used in traditional medicine for thousands of years. In this study, the antihypertensive effect of Korean wild simulated ginseng in spontaneously hypertensive rats was investigated. Three groups of hypertensive rats-a group without wild simulated ginseng treatment; another group treated with 100 mg of wild simulated ginseng extract/kg of body weight; and the other group treated with 200 mg of wild simulated ginseng extract/kg of body weight were tested over 8 weeks. The two wild simulated ginseng-treated groups showed significantly (p < 0.05) reduced systolic blood pressure at 4 and 6 weeks of wild simulated ginseng treatment. However, the wild simulated ginseng treatment did not adversely affect the food intake, serum electrolytes, osmolality, heart weight, heart rate, and the cross-section of the aorta as well as enzyme activities. The results suggested that Korean wild simulated ginseng is effectively used for reducing high systolic blood pressure in hypertensive patients without causing adverse health effects.
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Affiliation(s)
- Jae-Nam Moon
- 1School of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566 Korea
| | - Jong-Kuk Kim
- 2Department of Food and Food-Service Industry, Kyungpook National University, Sangju, 37224 Korea
| | - Seul Lee
- 1School of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566 Korea
| | - Joong-Ho Kwon
- 1School of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566 Korea
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Lee MJ, Jung HK, Lee KH, Jang JH, Sim MO, Seong TG, Ahn BK, Shon JH, Ham SH, Cho HW, Kim YM, Park SJ, Yoon JY, Ko JW, Kim JC. A 90-Day Repeated Oral Dose Toxicity Study of Alismatis Rhizoma Aqueous Extract in Rats. Toxicol Res 2019; 35:191-200. [PMID: 31015901 PMCID: PMC6467358 DOI: 10.5487/tr.2019.35.2.191] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 11/06/2018] [Indexed: 11/28/2022] Open
Abstract
Alismatis rhizoma (AR), the dried rhizome of Alisma orientale (Sam.) Juzep, is a well-known, traditional medicine that is used for the various biological activities including as a diuretic, to lower cholesterol and as an anti-inflammatory agent. The present study was carried out to investigate the potential toxicity of the Alismatis rhizoma aqueous extract (ARAE) following 90-day repeated oral administration to Sprague-Dawley rats. ARAE was administered orally to male and female rats for 90 days at 0 (control), 500, 1,000 and 2,000 mg/kg/day (n = 10 for male and female rats for each dose). Additional recovery groups from the control group and high dose group were observed for a 28-day recovery period. Chromatograms of ARAE detected main compounds with four peaks. Treatment-related effects including an increase in the red blood cells, hemoglobin, hematocrit, albumin, total protein, and urine volume were observed in males of the 2,000 mg/kg/day group (p < 0.05). However, the diuretic effect of ARAE was considered, a major cause of hematological and serum biochemical changes. The oral no-observed-adverse-effect level (NOAEL) of the ARAE was > 2,000 mg/kg/day in both genders, and no target organs were identified.
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Affiliation(s)
- Mu-Jin Lee
- Division of Tradition Korean Medicine Research, National Development Institute of Korean Medicine, Jangheung, Korea.,College of Veterinary Medicine BK21 Plus Project Team, Chonnam National University, Gwangju, Korea
| | - Ho-Kyung Jung
- Division of Tradition Korean Medicine Research, National Development Institute of Korean Medicine, Jangheung, Korea
| | - Ki-Ho Lee
- Division of Tradition Korean Medicine Research, National Development Institute of Korean Medicine, Jangheung, Korea
| | - Ji-Hun Jang
- Division of Tradition Korean Medicine Research, National Development Institute of Korean Medicine, Jangheung, Korea
| | - Mi-Ok Sim
- Division of Tradition Korean Medicine Research, National Development Institute of Korean Medicine, Jangheung, Korea
| | - Tea-Gyeong Seong
- Division of Tradition Korean Medicine Research, National Development Institute of Korean Medicine, Jangheung, Korea
| | - Byung-Kwan Ahn
- Division of Tradition Korean Medicine Research, National Development Institute of Korean Medicine, Jangheung, Korea
| | - Jin-Han Shon
- Division of Tradition Korean Medicine Research, National Development Institute of Korean Medicine, Jangheung, Korea
| | - Seong-Ho Ham
- Division of Tradition Korean Medicine Research, National Development Institute of Korean Medicine, Jangheung, Korea
| | - Hyun-Woo Cho
- Division of Tradition Korean Medicine Research, National Development Institute of Korean Medicine, Jangheung, Korea
| | - Yong-Min Kim
- Preclinical Research Center, MEDVILL Co., Seoul, Korea
| | - Sung-Jin Park
- Preclinical Research Center, MEDVILL Co., Seoul, Korea
| | | | - Je-Won Ko
- College of Veterinary Medicine BK21 Plus Project Team, Chonnam National University, Gwangju, Korea
| | - Jong-Choon Kim
- College of Veterinary Medicine BK21 Plus Project Team, Chonnam National University, Gwangju, Korea
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Seong NW, Seo HS, Kim JH, Kim YJ, Kim E, Lee JY, Ko JW, Kim JC. A 13-week subchronic toxicity study of an Eriobotrya japonica leaf extract in rats. JOURNAL OF ETHNOPHARMACOLOGY 2018; 226:1-10. [PMID: 30048729 DOI: 10.1016/j.jep.2018.07.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 07/05/2018] [Accepted: 07/22/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Eriobotrya japonica leaf is widely used in traditional medicine, and exhibits various beneficial effects such as anti-inflammatory, antiviral, antioxidant, and antitumor activities. However, limited data are available on the potential adverse effects of E. japonica. AIM OF THE STUDY This study investigated the potential subchronic toxicity of an E. japonica leaf extract (EJE) through a 13-week repeated oral dose experiment in Sprague-Dawley rats. MATERIALS AND METHODS Forty male and 40 female rats were randomly assigned to four experimental groups: three treatment groups receiving 250, 500, and 1000 mg/kg/day of EJE and a vehicle control group receiving sterile distilled water for 13 weeks. RESULTS Repeated oral administration of EJE for 13 weeks did not cause any treatment-related adverse effects with respect to clinical symptoms, body weight, food and water consumption, urinalysis, ophthalmology, necropsy findings, hematology, serum biochemistry, organ weight, and histopathological examination at any dose tested. Although some changes were observed in clinical symptoms, organ weight, hematology, and histopathology, these findings did not show a dose-response relationship and were within normal historical ranges for control rats. CONCLUSION Under the present experimental conditions, the no-observed-adverse-effect level of EJE was > 1000 mg/kg/day in both sexes and no target organs were identified. The results suggest that the EJE is a safe traditional medicine for clinical applications at proper dose.
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Affiliation(s)
- Nak-Won Seong
- Health Care Institute, Korea Testing and Research Institute (KTR), 12-67 Sandan-gil, Hwasun-eup, Hwasun-gun, Jeonnam 58141, Republic of Korea; College of Veterinary Medicine BK21 Plus Project Team, Chonnam National University, 77 Yongbong-ro, Gwangju 61186, Republic of Korea
| | - Heung-Sik Seo
- Health Care Institute, Korea Testing and Research Institute (KTR), 12-67 Sandan-gil, Hwasun-eup, Hwasun-gun, Jeonnam 58141, Republic of Korea
| | - Jun-Ho Kim
- Health Care Institute, Korea Testing and Research Institute (KTR), 12-67 Sandan-gil, Hwasun-eup, Hwasun-gun, Jeonnam 58141, Republic of Korea
| | - Yong-Jae Kim
- Korea INS Pharm Research Institute, 72 Dongnonggong-gil, Dong-myeon, Hwasun-gun, Jeonnam 58143, Republic of Korea
| | - Eun Kim
- Korea INS Pharm Research Institute, 72 Dongnonggong-gil, Dong-myeon, Hwasun-gun, Jeonnam 58143, Republic of Korea
| | - Joon-Yeol Lee
- Korea INS Pharm Research Institute, 72 Dongnonggong-gil, Dong-myeon, Hwasun-gun, Jeonnam 58143, Republic of Korea
| | - Je-Won Ko
- College of Veterinary Medicine BK21 Plus Project Team, Chonnam National University, 77 Yongbong-ro, Gwangju 61186, Republic of Korea
| | - Jong-Choon Kim
- College of Veterinary Medicine BK21 Plus Project Team, Chonnam National University, 77 Yongbong-ro, Gwangju 61186, Republic of Korea.
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Noh JH, Jeong JS, Park SJ, Yun EY, Hwang JS, Kim JY, Jung KJ, Park HJ, Son HY, Moon KS. Toxicological safety evaluation of freeze-dried Protaetia brevitarsis larva powder. Toxicol Rep 2018; 5:695-703. [PMID: 30003048 PMCID: PMC6041370 DOI: 10.1016/j.toxrep.2018.06.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 05/22/2018] [Accepted: 06/01/2018] [Indexed: 11/26/2022] Open
Abstract
General toxicity and genotoxicity of freeze-dried P. brevitarsis larva powder was investigated. In rats, LD50 and NOAEL set at >5000 and 3000 mg/kg, respectively. No aberrant changes in Ig E and histamine concentration were observed in the 13-week oral repeated dose study. No evidence of mutagenic and carcinogenic potential was observed in the genotoxicity studies.
White-spotted flower chafer (Protaetia brevitarsis) is an edible insect and its larva was used as a traditional Asian medicine. It’s a promising material as a novel food source because of its nutritional components. In this study, as part of the preclinical toxicity program, we evaluated the toxicity of freeze-dried P. brevitarsis larva powder to develop a novel food material. In a single-dose oral toxicity study in rats, there were no changes in mortality, clinical observations, and body weight in rats administered 5000 mg/kg P. brevitarsis larva powder. In a 13-week oral repeated dose toxicity study in rats, there were no adverse effects or changes in mortality, clinical observations, body weight, food consumption, ophthalmology, clinical pathology, necropsy, organ weight, and histopathology at doses of 300, 1000, and 3000 mg/kg/day. In identification of allergic reactions, P. brevitarsis larva powder induced no increases of serum immunoglobulin E and histamine concentrations over 13 weeks of oral administration in rats. In a genotoxicity assessment, P. brevitarsis larva powder didn’t provoke bacterial reverse mutations, chromosomal aberrations, and micronucleated reticulocytes. Therefore, freeze-dried P. brevitarsis larva powder shows no evidence of toxic and mutagenic changes under the experimental conditions of the present in vitro and in vivo studies.
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Affiliation(s)
- Jung-Ho Noh
- Department of Toxicological Evaluation and Research, Korea Institute of Toxicology (KIT), 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea.,College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - Ji-Seong Jeong
- Department of Toxicological Evaluation and Research, Korea Institute of Toxicology (KIT), 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Sang-Jin Park
- Department of Toxicological Evaluation and Research, Korea Institute of Toxicology (KIT), 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Eun-Young Yun
- Graduate School of Integrated Bioindustry, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul, 05006, Republic of Korea
| | - Jae Sam Hwang
- Department of Agricultural Biology Applied Entomology Division, National Institute of Agricultural Science, 166, Nongsaengmyong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea
| | - Ji-Young Kim
- Department of Toxicological Evaluation and Research, Korea Institute of Toxicology (KIT), 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Kyung-Jin Jung
- Department of Toxicological Evaluation and Research, Korea Institute of Toxicology (KIT), 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Hee Jin Park
- Department of Toxicological Evaluation and Research, Korea Institute of Toxicology (KIT), 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Hwa-Young Son
- College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - Kyoung-Sik Moon
- Department of Toxicological Evaluation and Research, Korea Institute of Toxicology (KIT), 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
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Kim HY, Cho ES. 28-day inhalation toxicity of 3-methoxybutyl chloroformate in rats. Toxicol Rep 2018; 5:213-219. [PMID: 29854591 PMCID: PMC5977156 DOI: 10.1016/j.toxrep.2017.12.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 09/23/2017] [Accepted: 12/08/2017] [Indexed: 11/17/2022] Open
Abstract
3-MBCF up to 6 ppm induced mortality in 28-day inhalation study of rats. The NOAEL of 3-MBCF in 28 day inhalation toxicity study, was less than 3 ppm. 3-MBCF under 12 ppm did not induce micronucleus formation in the bone marrow of rats.
The 28-day repeated inhalation study was applied for hazard assessment of 3-methoxybutyl chloroformate (3-MBCF) in Sprague Dawley rats. Groups of five rats per sex were exposed 6 h/day, 5 days per week for 4 weeks to test substance concentration (ranging from 3 to 12 ppm) using a whole-body exposure system. At the terminal sacrifice, following blood collection and gross pathological examination, organ weights were determined and fixed organs were examined. The micronucleus test was performed using bone marrow cells. Exposure of 3-MBCF induced mortality at concentrations above 6 ppm. Decreases in body weight and food intake, hematologic alterations, organ weight changes, and gross and microscopic findings were seen even at the lowest concentrations of 3 ppm. Histopathology revealed principal test substance exposure correlated with lesions in the respiratory tract in both male and female rats above 3 ppm. Groups of male rats exposed above 6 ppm show microscopic lesions in spleens, livers, testes and epididymides; however, the micronucleated polychromatic erythrocytes frequency in bone marrow cells was not changed. Based on histopathology of the respiratory tract and other organs, the no observed adverse effect level (NOAEL) of 3-MBCF in the present study was less than 3 ppm.
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Key Words
- 3-MBCF, 3-methoxy butyl chloroformate
- 3-Methoxybutyl chloroformate
- ANOVA, analysis of variance
- CT, computed tomography
- EDTA, ethylenediamine tetraacetic acid
- GHS, Globally Harmonized System of Classification and Labelling of Chemicals
- GLP, Good Laboratory Practice
- HCT, hematocrit
- HGB, hemoglobin concentration
- Inhalation toxicity
- MCH, mean corpuscular hemoglobin
- MCHC, mean corpuscular hemoglobin concentration
- MCV, mean corpuscular volume
- MNPCE, micronucleated polychromatic erythrocytes
- MOE, The Ministry of Environment
- NCE, normochromatic erythrocytes
- NOAEL, no observed adverse effect level
- OECD, Organization for Economic Cooperation and Development
- PCE, polychromatic erythrocytes
- PLT, platelets
- RBC, red blood cell counts
- RDW, red cell distribution width
- REACH, Registration, Evaluation, Authorization and Restriction of Chemicals
- SD, Sprague-Dawley
- SPF, specific-pathogen-free
- Sprague Dawley rats
- WBC, white blood cell counts
- occupational hazard
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Kim HJ, Ko JW, Cha SB, Heo HS, Seo JH, Cha MJ, Bae JS, Lee HK, Song SW, Kim JC. Evaluation of 13-week repeated oral dose toxicity of Areca catechu in F344/N rats. Food Chem Toxicol 2018; 114:41-51. [DOI: 10.1016/j.fct.2018.02.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 02/01/2018] [Accepted: 02/07/2018] [Indexed: 12/28/2022]
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Yun JW, Kim SH, Kim YS, You JR, Cho EY, Yoon JH, Kwon E, Yun IJ, Oh JH, Jang JJ, Park JS, Che JH, Kang BC. Enzymatic extract from Ecklonia cava: Acute and subchronic oral toxicity and genotoxicity studies. Regul Toxicol Pharmacol 2018; 92:46-54. [PMID: 29108849 DOI: 10.1016/j.yrtph.2017.10.034] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 10/30/2017] [Accepted: 10/31/2017] [Indexed: 11/20/2022]
Abstract
Ecklonia cava (EC) is known to have antioxidant, anti-inflammatory, antidiabetic, and anticancer properties. Despite its wide use and beneficial properties, comprehensive toxicological information regarding EC extract is currently limited. Therefore, the purpose of this study was to investigate acute toxicity, subchronic toxicity, and genotoxicity of enzymatic EC extract according to test guidelines published by Organization for Economic Cooperation and Development. The acute oral LD50 values of this EC extract administered to rats and dogs were estimated to be more than 3000 mg/kg BW. In an oral 13-week toxicity study, changes in body weights of rats exposed to the EC extract up to 3000 mg/kg BW were found to be normal. In addition, repeated doses of EC extract failed to influence any systematic parameters of treatment-related toxic symptoms such as food/water consumption, mortality, urinalysis, hematology, serum biochemistry, organ weight, or histopathology. These results indicated that the no-observed-adverse-effect level for the EC extract was 3000 mg/kg/day for male and female rats. Data obtained from Ames test, chromosome aberration assay, and micronucleus assay indicated that EC extract was not mutagenic or clastogenic. Taken together, these results support the safety of enzymatic EC extract as a potential therapeutic for human consumption against various diseases.
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Affiliation(s)
- Jun-Won Yun
- Department of Biotechnology, The Catholic University of Korea, Bucheon, Republic of Korea
| | - Seung-Hyun Kim
- Department of Experimental Animal Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Yun-Soon Kim
- Department of Experimental Animal Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Ji-Ran You
- Department of Experimental Animal Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Eun-Young Cho
- Department of Experimental Animal Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jung-Hee Yoon
- Department of Experimental Animal Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Euna Kwon
- Department of Experimental Animal Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - In-Jue Yun
- Ju Yeong NS Co., Ltd., Chuncheon, Kangwon-do, Republic of Korea
| | - Je-Hun Oh
- Ju Yeong NS Co., Ltd., Chuncheon, Kangwon-do, Republic of Korea
| | - Ja-June Jang
- Department of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jin-Sung Park
- Department of Neurogenetics, Kolling Institute, Royal North Shore Hospital and University of Sydney, St. Leonards, Australia
| | - Jeong-Hwan Che
- Biomedical Center for Animal Resource and Development, Seoul National University College of Medicine, Seoul, Republic of Korea.
| | - Byeong-Cheol Kang
- Department of Experimental Animal Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea; Biomedical Center for Animal Resource and Development, Seoul National University College of Medicine, Seoul, Republic of Korea; Graduate School of Translational Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea; Designed Animal and Transplantation Research Institute, Institute of GreenBio Science Technology, Seoul National University, Pyeongchang-gun, Gangwon-do, Republic of Korea.
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Turck D, Bresson JL, Burlingame B, Dean T, Fairweather-Tait S, Heinonen M, Hirsch-Ernst KI, Mangelsdorf I, McArdle HJ, Naska A, Neuhäuser-Berthold M, Nowicka G, Pentieva K, Sanz Y, Siani A, Sjödin A, Stern M, Tomé D, Vinceti M, Willatts P, Engel KH, Marchelli R, Pöting A, Poulsen M, Schlatter JR, Turla E, van Loveren H. Statement on the safety of EstroG-100™ as a novel food pursuant to Regulation (EC) No 258/97. EFSA J 2017; 15:e04778. [PMID: 32625484 PMCID: PMC7010173 DOI: 10.2903/j.efsa.2017.4778] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Following a request from the European Commission, the EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) was asked to update its scientific opinion on the safety of EstroG-100™ as a novel food (NF) in the light of additional information submitted by the applicant. In its previous scientific opinion of 2016, the Panel concluded that EstroG-100™, which is a hot-water extract of a mixture of three herbal roots, is safe for the use in food supplements at the maximum intake level of 175 mg/day in post-menopausal women, which is lower than the maximum intake level proposed by the applicant (514 mg/day). The Panel reached its conclusions based on the effects of EstroG-100™ on liver and haematology as observed in several oral toxicity studies, the lack of information on liver and haematological parameters in human studies and the absence of chronic toxicity data. In view of the Panel's conclusion on the safety of EstroG-100™, the applicant has now provided additional information on haematological and liver parameters for the human intervention study with EstroG-100™ and historical control data related to the subchronic 90-day oral toxicity study with EstroG-100™. After assessing the additional information provided by the applicant, the Panel considers that the conclusion of the scientific opinion on the safety of EstroG-100™ does not need to be revised, and thus, the Panel reconfirms that the NF is safe for the use in food supplements at the maximum intake level of 175 mg/day in post-menopausal women.
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Seo HW, Suh JH, So SH, Kyung JS, Kim YS, Han CK. Subacute oral toxicity and bacterial mutagenicity study of Korean Red Ginseng oil. J Ginseng Res 2017; 41:595-601. [PMID: 29021709 PMCID: PMC5628349 DOI: 10.1016/j.jgr.2017.01.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 01/05/2017] [Accepted: 01/17/2017] [Indexed: 11/29/2022] Open
Abstract
Background Red ginseng oil (RGO) is produced by supercritical CO2 extraction of secondary products derived from Korean Red Ginseng extract. As the use of RGO has increased, product safety concerns have become more important. Methods In the present study, the subacute oral toxicity and bacterial reverse mutagenicity of RGO were evaluated. Sprague–Dawley rats were orally administered with RGO for 28 d by gavage. Daily RGO dose concentrations were 0 mg/kg body weight (bw), 500 mg/kg bw, 1,000 mg/kg bw, or 2,000 mg/kg bw per day. Bacterial reverse mutation tests included five bacterial strains (Escherichia coli WP2 and Salmonella typhimurium TA98, TA100, TA1535, and TA1537), which were used in the presence or absence of metabolic activation. The plated incorporation method for mutation test was used with RGO concentrations ranging from 312.5 μg to 5,000 μg per plate. Results The subacute oral toxicity test results did not reveal any marked changes in clinical characteristics. There were no toxicological changes related to RGO administration in hematological and serum biochemical characteristics in either control or treatment animals. Furthermore, no gross or histopathological changes related to RGO treatment were observed. The bacterial reverse mutation test results did not reveal, at any RGO concentration level and in all bacterial strains, any increase in the number of revertant colonies in the RGO treatment group compared to that in the negative control group. Conclusion The no-observed-adverse-effect level of RGO is greater than 2,000 mg/kg bw and RGO did not induce genotoxicity related to bacterial reverse mutations.
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Affiliation(s)
- Hwi Won Seo
- Laboratory of Fundamental Research, Korea Ginseng Corporation, Yuseong-gu, Daejeon, Republic of Korea
| | - Jae Hyun Suh
- Laboratory of Fundamental Research, Korea Ginseng Corporation, Yuseong-gu, Daejeon, Republic of Korea
| | - Seung-Ho So
- Laboratory of Fundamental Research, Korea Ginseng Corporation, Yuseong-gu, Daejeon, Republic of Korea
| | - Jong-Soo Kyung
- Laboratory of Fundamental Research, Korea Ginseng Corporation, Yuseong-gu, Daejeon, Republic of Korea
| | - Yong-Soon Kim
- Korea Occupational Safety Health Research Institute, Yuseong-gu, Daejeon, Republic of Korea
| | - Chang-Kyun Han
- Laboratory of Fundamental Research, Korea Ginseng Corporation, Yuseong-gu, Daejeon, Republic of Korea
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Wong ET, Kogel U, Veljkovic E, Martin F, Xiang Y, Boue S, Vuillaume G, Leroy P, Guedj E, Rodrigo G, Ivanov NV, Hoeng J, Peitsch MC, Vanscheeuwijck P. Evaluation of the Tobacco Heating System 2.2. Part 4: 90-day OECD 413 rat inhalation study with systems toxicology endpoints demonstrates reduced exposure effects compared with cigarette smoke. Regul Toxicol Pharmacol 2016; 81 Suppl 2:S59-S81. [DOI: 10.1016/j.yrtph.2016.10.015] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 10/04/2016] [Accepted: 10/24/2016] [Indexed: 10/20/2022]
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Acute toxicity and cytotoxicity evaluation of Dendrobium moniliforme aqueous extract in vivo and in vitro. Lab Anim Res 2016; 32:144-150. [PMID: 27729930 PMCID: PMC5057002 DOI: 10.5625/lar.2016.32.3.144] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 05/31/2016] [Accepted: 08/15/2016] [Indexed: 11/28/2022] Open
Abstract
Dendrobium moniliforme (L.) Sw., an herb of the Orchidaceae family, has long been used in traditional medicine to strengthen bones, nourish the stomach, and promote the production of bodily fluid. Recently, polysaccharides isolated from Dendrobium have been used in functional foods and nutraceutical products. A traditional method to process Dendrobium is to soak fresh stems in an ethanol solution, which is the most important factor to ensure high yields of aqueous-extractable polysaccharides. The present study was carried out to investigate the potential acute toxicity of D. moniliforme aqueous extract (DMAE), by a single oral dose in Sprague-Dawley rats. The test article was orally administered once by gavage to male and female rats at doses of 0, 2,500, and 5,000 mg/kg body weight (n=5 male and female rats for each dose). Throughout the study period, no treatment-related deaths were observed and no adverse effects were noted in clinical signs, body weight, food consumption, serum biochemistry, organ weight, or gross findings at any dose tested. The results show that a single oral administration of DMAE did not induce any toxic effects at a dose below 5,000 mg/kg in rats, and the minimal lethal dose was considered to be over 5,000 mg/kg body weight for both sexes. With respect to cytotoxicity, the cell viability of human embryonic kidney (HEK293) cells was less than 50% when the cells were treated with 10 mg/mL aqueous extract for 24 h.
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Lee MY, Seo CS, Kim YB, Shin HK. Safety assessment of Guibi-tang: Subchronic toxicity study in Crl:CD SD rats. Regul Toxicol Pharmacol 2015; 73:485-93. [PMID: 26432010 DOI: 10.1016/j.yrtph.2015.09.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 09/23/2015] [Accepted: 09/25/2015] [Indexed: 12/28/2022]
Abstract
Guibi-tang (Kihi-To in Japanese and Qui-Pi-Tang in Chinese) is a multiherbal traditional Korean medicinal formula used for treatment of amnesia, fatigue, poor memory or forgetfulness, anemia, insomnia, and necrosis. The aim of the present study was to investigate potential safety, if any, of subchronic administration of Guibi-tang aqueous extract (GBT) in laboratory animals. For this study, 0, 1000, 2000, and 5000 mg/kg/day of GBT was administered to Crl:CD Sprague Dawley rats (10/sex/group) for 13 weeks via oral gavage. Administration of the GBT did not result in any mortality, body weight, food consumption, hematology, serum biochemistry, clinical or ophthalmological signs or changes in urinalysis, gross findings, or organ weight. However, histopathology revealed forestomach hyperplasia and duodenum mucosal hyperplasia in rats of both sexes at the highest dose of GBT, 5000 mg/kg/day. Therefore, the no-observed-adverse-effect level in rats was established for GBT at 2000 mg/kg/day under the conditions of this study.
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Affiliation(s)
- Mee-Young Lee
- Herbal Medicine Formulation Research Group, Korea Institute of Oriental Medicine, 483 Expo-ro, Yuseong-gu, Daejeon 305-811, Republic of Korea
| | - Chang-Seob Seo
- Herbal Medicine Formulation Research Group, Korea Institute of Oriental Medicine, 483 Expo-ro, Yuseong-gu, Daejeon 305-811, Republic of Korea
| | - Yong-Bum Kim
- Division of Non-clinical Studies, Korea Institute of Toxicology, P.O.Box 123, 100 Jangdong, Yuseong-gu, Daejeon 305-343, Republic of Korea
| | - Hyeun-Kyoo Shin
- Herbal Medicine Formulation Research Group, Korea Institute of Oriental Medicine, 483 Expo-ro, Yuseong-gu, Daejeon 305-811, Republic of Korea.
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Kuper CF, Vogels J, Kemmerling J, Fehlert E, Rühl-Fehlert C, Vohr HW, Krul C. Integrated analysis of toxicity data of two pharmaceutical immunosuppressants and two environmental pollutants with immunomodulating properties to improve the understanding of side effects-A toxicopathologist׳s view. Eur J Pharmacol 2015; 759:343-55. [PMID: 25824899 DOI: 10.1016/j.ejphar.2015.03.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 02/03/2015] [Accepted: 03/12/2015] [Indexed: 12/19/2022]
Abstract
Data in a toxicity test are evaluated generally per parameter. Information on the response per animal in addition to per parameter can improve the evaluation of the results. The results from the six studies in rats, described in the paper by Kemmerling, J., Fehlert, E., Rühl-Fehlert, C., Kuper, C.F., Stropp, G., Vogels, J., Krul, C., Vohr, H.-W., 2015. The transferability from rat subacute 4-week oral toxicity study to translational research exemplified by two pharmaceutical immunosuppressants and two environmental pollutants with immunomodulating properties (In this issue), have been subjected to principal component analysis (PCA) and principal component discriminant analysis (PC-DA). The two pharmaceuticals azathioprine (AZA) and cyclosporine A (CSA) and the two environmental pollutants hexachlorobenzene (HCB) and benzo(a)pyrene (BaP) all modulate the immune system, albeit that their mode of immunomodulation is quite diverse. PCA illustrated the similarities between the two independent studies with AZA (AZA1 and AZA2) and CSA (CSA1 and CSA2). The PC-DA on data of the AZA2 study did not increase substantially the information on dose levels. In general, the no-effect levels were lower upon single parameter analysis than indicated by the distances between the dose groups in the PCA. This was mostly due to the expert judgment in the single parameter evaluation, which took into account outstanding pathology in only one or two animals. The PCA plots did not reveal sex-related differences in sensitivity, but the key pathology for males and females differed. The observed variability in some of the control groups was largely a peripheral blood effect. Most importantly, PCA analysis identified several animals outside the 95% confidence limit indicating high-responders; also low-to-non-responders were identified. The key pathology enhanced the understanding of the response of the animals to the four model compounds.
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Affiliation(s)
| | - Jack Vogels
- TNO, PO Box 360, 3700 AJ Zeist, The Netherlands
| | - Jessica Kemmerling
- Bayer Pharma AG, GDD-GED-TOX-IT-Immunotoxicology, Aprather Weg, 42096 Wuppertal, Germany
| | - Ellen Fehlert
- Department of Medicine IV, Eberhard-Karls University, Otfried-Mueller Strasse 10, 72076 Tuebingen, Germany
| | | | - Hans-Werner Vohr
- Bayer Pharma AG, GDD-GED-TOX-IT-Immunotoxicology, Aprather Weg, 42096 Wuppertal, Germany
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