1
|
Zhu D, Ge C, Sun Y, Yu H, Wang J, Sun H. Identification of organic pollutants and heavy metals in natural rubber wastewater and evaluation its phytotoxicity and cytogenotoxicity. Chemosphere 2024; 349:140503. [PMID: 37939923 DOI: 10.1016/j.chemosphere.2023.140503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 09/24/2023] [Accepted: 10/19/2023] [Indexed: 11/10/2023]
Abstract
The natural rubber industry consumes large volumes of water and annually releases wastewater with rich organic and inorganic loads. This wastewater is allowed for soil irrigation in developing countries. However, the pollutant composition in wastewater and its environmental effects remain unclear. Therefore, we aimed to assess the wastewater's physicochemical parameters, toxic organic pollutants, heavy metals, and phytotoxic and cytogenotoxic. The result revealed that values of comprehensive wastewater parameters were recorded as chemical oxygen demand (187432.1 mg/L), pH (4.23), total nitrogen (1157.1 mg/L), ammonia nitrogen (1113.0 mg/L), total phosphorus (1181.2 mg/L), Zn (593.3 mg/L), Cr (0.6127 mg/L), and Ni (0.2986 mg/L). The organic compounds detected by LC-MS were salbostatin, sirolimus, Gibberellin A34-catabolite, 1-(sn-glycero-3-phospho)-1D-myo-inositol, and methyldiphenylsilane. The toxicity of the identified toxic chemicals and heavy metals was confirmed by onion and mung bean phytotoxicity characterization tests. The wastewater affected the germination of mung bean seeds, reduced or inhibited the growth of onions, and induced various chromosomal aberrations in root apical meristems. Our study shows that the treatment of natural rubber wastewater needs to be improved, and the feasibility of irrigating soil with wastewater needs to be reconsidered.
Collapse
Affiliation(s)
- Dayu Zhu
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou, 570228, China.
| | - Chengjun Ge
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou, 570228, China.
| | - Ying Sun
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou, 570228, China
| | - Huamei Yu
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou, 570228, China
| | - Jun Wang
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou, 570228, China
| | - Hongfei Sun
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou, 570228, China.
| |
Collapse
|
2
|
Aslantürk ÖS. Cytotoxic and genotoxic effects of triphenyl phosphate on root tip cells of Allium cepa L. Toxicol In Vitro 2024; 94:105734. [PMID: 37981031 DOI: 10.1016/j.tiv.2023.105734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 11/13/2023] [Indexed: 11/21/2023]
Abstract
Triphenyl phosphate (TPhP) is a tri-ester of phosphoric acid and phenol. It is used in products such as polyvinyl chloride, hydraulic fluids, polymers, photographic films and printed circuit cards as a flame retardant. It is also widely used in consumer products like electric and electronic devices, textiles and building necessaries. TPhP can diffuse into its surrounding environment easily, because it does not form a chemical bond with polymeric materials. Therefore, bio-monitoring of such compounds is needed for possible environmental and human health effects. In this study, we evaluated genotoxicity and cytotoxicity of TPhP on Allium cepa on the cells of root tips. A 10 mg/mL stock solution of TPhP was dissolved in DMSO and dilutions of 2, 4, 6, 8 and 10 mg/mL was made in distilled water. Onion bulbs, rooted in test tubes, were exposed to these concentrations of TPhP for 24 h. Distilled water was used as a negative control, 0.7% hydrogen peroxide was used as positive control, and 0.5% DMSO was used as solvent control. Significant inhibition of onion root growth was observed following treatment with the 6, 8 and 10 mg/mL TPhP ranges in comparison with the negative and solvent control groups (p < 0.05). Furthermore, in the TPhP treatment groups, total chromosome aberration ratios were significantly high in comparison with the controls (p < 0.05). These results suggest that TPhP have cytotoxic and genotoxic effects on A. cepa root tips.
Collapse
Affiliation(s)
- Özlem Sultan Aslantürk
- Aydın Adnan Menderes University, Faculty of Science, Department of Biology, Central Campus, 09010 Aydın, Turkey.
| |
Collapse
|
3
|
Broemsen ELJE, Place AR, Parrow MW. Division time (t d) for in situ growth measurements demonstrates thermal ecotypes of Karlodinium veneficum. Harmful Algae 2024; 131:102558. [PMID: 38212083 DOI: 10.1016/j.hal.2023.102558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 10/25/2023] [Accepted: 12/06/2023] [Indexed: 01/13/2024]
Abstract
The toxic dinoflagellate Karlodinium veneficum forms fish killing blooms in temperate estuaries worldwide. These blooms have variable toxicity which may be related to bloom stage and in situ growth rates of the constituent K. veneficum cells. Measurement of in situ growth rates is challenging and methods such as the mitotic index technique require knowledge of the dynamics of cell division. In order to better understand these dynamics, we determined the duration of cell division (td) in four geographically distinct laboratory strains of K. veneficum at three different environmentally relevant temperatures. The results demonstrated that the td value for each strain, growing at strain-specific optimal temperatures, was 1.6 ± 0.1 h. This value corresponded to a range of growth rates from 0.17 ± 0.08 d-1 to 0.62 ± 0.07 d-1. Equivalent values of td spread across four geographically distinct laboratory strains and a nearly fourfold range of growth rates implies that 1.6 h represents the td value of K. veneficum. Additionally, temperature conditions yielding this value for td and the highest growth rates varied among strains, indicating cold-adapted (Norway), warm-adapted (Florida, USA), and eurythermally-adapted (Maryland, USA) strains. These differences have been apparently retained in culture over many years, indicating a conserved genetic basis that suggests distinct thermal ecotypes of the morphospecies K. veneficum. This knowledge together with the first estimate of td for K. veneficum will be useful in future field studies aimed at correlating bloom toxicity with in situ growth rate using the mitotic index technique.
Collapse
Affiliation(s)
- Erik L J E Broemsen
- Department of Biological Sciences, University of North Carolina at Charlotte, 9201 University City Blvd., Charlotte, NC, 28223, USA
| | - Allen R Place
- Institute of Marine and Environmental Technology, University of Maryland Center for Environmental Sciences, 701 E. Pratt Street, Baltimore, MD, 21202, USA
| | - Matthew W Parrow
- Department of Biological Sciences, University of North Carolina at Charlotte, 9201 University City Blvd., Charlotte, NC, 28223, USA.
| |
Collapse
|
4
|
Kumari A, Chokheli VA, Lysenko VS, Mandzhieva SS, Minkina TM, Mazarji M, Rajput VD, Shuvaeva VA, Sushkova SS, Barakhov A. Genotoxic and morpho-physiological responses of ZnO macro- and nano-forms in plants. Environ Geochem Health 2023; 45:9345-9357. [PMID: 36383335 DOI: 10.1007/s10653-022-01428-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 10/31/2022] [Indexed: 06/16/2023]
Abstract
In the current study, two plants, viz., Pisum sativum L. and Hordeum vulgare L., were exposed to nano- and macro-dispersed ZnO at 1, 10, and 30 times of maximal permissible concentration (MPC). The main objective of the study is to depict and compare the genotoxicity in terms of chromosomal anomalies, cytotoxicity (i.e., mitotic index), and phytotoxicity (viz., germination, morphometry, maximal quantum yield, and chlorophyll fluorescence imaging) of macro- and nano-forms of ZnO along with their accumulation and translocation. In the case of genotoxic and cytotoxic responses, the maximal effect was observed at 30 MPC, regardless of the macro- or nano-forms of ZnO. The phytotoxic observations revealed that the treatment with macro- and nano-forms of ZnO significantly affected the germination rate, germination energy, and length of roots and shoots of H. vulgare in a dose-dependent manner. The factor toxicity index of treated soil demonstrated that toxicity soared as concentrations increased and that at 30 MPC, toxicity was average and high in macro- and nano-dispersed ZnO, respectively. Furthermore, the photosynthetic parameters were observed to be negatively affected in both treatments, but the maximal effect was observed in the case of nano-dispersed form. It was noted that the mobility of nano-dispersed ZnO in the soil was higher than macro-dispersed. The increased mobility of nano-dispersed ZnO might have boosted their accumulation and translocation that subsequently led to the oxidative stress due to the accelerated production of reactive oxygen species, thus strengthen toxicity implications in plants.
Collapse
Affiliation(s)
- Arpna Kumari
- Southern Federal University, Rostov-On-Don, Russia, 344006.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
5
|
Christudoss AC, Dimkpa CO, Mukherjee A. Eco-corona formation diminishes the cytogenotoxicity of graphene oxide on Allium cepa: Role of soil extracted-extracellular polymeric substances in combating oxidative stress. Plant Physiol Biochem 2023; 204:108123. [PMID: 37935068 DOI: 10.1016/j.plaphy.2023.108123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 10/08/2023] [Accepted: 10/17/2023] [Indexed: 11/09/2023]
Abstract
Graphene oxide (GO) is widely acknowledged for its exceptional biological and industrial applications. However, its discharge into the environment negatively impacts the ecosystem. This study aimed to investigate the toxicity of GO in Allium cepa root tip cells and the role of extracellular polymeric substances (EPS) in modulating its toxic effects. To evaluate toxicity, various endpoints like cell viability using Evans blue dye, cytotoxicity (mitotic index), genotoxicity (chromosomal aberrations), and oxidative stress assessments (total ROS, superoxide, hydroxyl radical production, and lipid peroxidation) were considered. The results suggest that pristine GO caused a dose-dependent increase in various toxicity parameters, especially the genotoxic effects. Oxidative stress generation by GO is proposed to be the principal mode of action. The EPS-corona formed on GO could potentially counteract the toxic effects, substantially reducing the oxidative stress within the cells.
Collapse
Affiliation(s)
| | - Christian O Dimkpa
- Department of Analytical Chemistry, The Connecticut Agricultural Experiment Station, 123 Huntington Street, New Haven, CT, 06511, United States
| | - Amitava Mukherjee
- Centre for Nanobiotechnology, Vellore Institute of Technology, Vellore, Tamil Nadu, India.
| |
Collapse
|
6
|
Satomoto K, Aoki M, Wakita A, Yamagata H, Mitsumoto T, Okamoto T, Harada R, Hamada S. Hepatocyte proliferation activity in untreated rats, measured by immunohistochemical detection of Ki-67: The effect of age on the repeated-dose liver micronucleus assay. Mutat Res Genet Toxicol Environ Mutagen 2023; 890:503658. [PMID: 37567645 DOI: 10.1016/j.mrgentox.2023.503658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 07/05/2023] [Accepted: 07/07/2023] [Indexed: 08/13/2023]
Abstract
The repeated-dose liver micronucleus (RDLMN) assay is a widely accepted method for detecting genotoxic substances. We investigated the effect of animal age on this assay. Proliferation activity in the liver tissue of untreated rats at age = 3.5, 6, 8, 10, or 12 weeks was measured via immunohistochemical expression of Ki-67 protein. The percentage of Ki-67-positive hepatocytes decreased markedly with age, reaching very low levels after 10 weeks, indicating decline with age of proliferative capacities in the liver. We calculated the area under the curve (AUC) of the approximate curve generated from the percentage of Ki-67-positive cells, to estimate the hepatocyte proliferation activity over the dosing period in the two regimens of the 4-week RDLMN assay: dosing initiated at age = 6 or 8 weeks. Hepatocyte proliferation activity of the former regimen was approximately double that of the latter. We also calculated the AUC for the juvenile-rat method, in which rats are treated for two days at age = 3.5 weeks. The AUC calculated for that method was approximately half of that for the 4-week repeated-dosing regimen initiated at 6 weeks of age. These findings suggest that the 4-week RDLMN assay with dosing initiated at age = 6 weeks could be approximately twice as sensitive as the other two methods.
Collapse
Affiliation(s)
- Kensuke Satomoto
- BoZo Research Center Inc., 1284 Kamado, Gotemba-shi, Shizuoka 412-0039, Japan.
| | - Moeko Aoki
- BoZo Research Center Inc., 1284 Kamado, Gotemba-shi, Shizuoka 412-0039, Japan
| | - Atsushi Wakita
- BoZo Research Center Inc., 1284 Kamado, Gotemba-shi, Shizuoka 412-0039, Japan
| | - Hiroshi Yamagata
- BoZo Research Center Inc., 1284 Kamado, Gotemba-shi, Shizuoka 412-0039, Japan
| | - Tatsuya Mitsumoto
- BoZo Research Center Inc., 1284 Kamado, Gotemba-shi, Shizuoka 412-0039, Japan
| | - Takezo Okamoto
- BoZo Research Center Inc., 1284 Kamado, Gotemba-shi, Shizuoka 412-0039, Japan
| | - Ryoko Harada
- ITR Laboratories Canada Inc., 19601 Clark Graham Ave, Baie-D'Urfé, Quebec H9X 3T1, Canada
| | - Shuichi Hamada
- BoZo Research Center Inc., 1284 Kamado, Gotemba-shi, Shizuoka 412-0039, Japan
| |
Collapse
|
7
|
van Bergeijk SA, Stathonikos N, ter Hoeve ND, Lafarge MW, Nguyen TQ, van Diest PJ, Veta M. Deep learning supported mitoses counting on whole slide images: A pilot study for validating breast cancer grading in the clinical workflow. J Pathol Inform 2023; 14:100316. [PMID: 37273455 PMCID: PMC10238836 DOI: 10.1016/j.jpi.2023.100316] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 04/13/2023] [Accepted: 04/28/2023] [Indexed: 06/06/2023] Open
Abstract
Introduction Breast cancer (BC) prognosis is largely influenced by histopathological grade, assessed according to the Nottingham modification of Bloom-Richardson (BR). Mitotic count (MC) is a component of histopathological grading but is prone to subjectivity. This study investigated whether mitoses counting in BC using digital whole slide images (WSI) compares better to light microscopy (LM) when assisted by artificial intelligence (AI), and to which extent differences in digital MC (AI assisted or not) result in BR grade variations. Methods Fifty BC patients with paired core biopsies and resections were randomly selected. Component scores for BR grade were extracted from pathology reports. MC was assessed using LM, WSI, and AI. Different modalities (LM-MC, WSI-MC, and AI-MC) were analyzed for correlation with scatterplots and linear regression, and for agreement in final BR with Cohen's κ. Results MC modalities strongly correlated in both biopsies and resections: LM-MC and WSI-MC (R2 0.85 and 0.83, respectively), LM-MC and AI-MC (R2 0.85 and 0.95), and WSI-MC and AI-MC (R2 0.77 and 0.83). Agreement in BR between modalities was high in both biopsies and resections: LM-MC and WSI-MC (κ 0.93 and 0.83, respectively), LM-MC and AI-MC (κ 0.89 and 0.83), and WSI-MC and AI-MC (κ 0.96 and 0.73). Conclusion This first validation study shows that WSI-MC may compare better to LM-MC when using AI. Agreement between BR grade based on the different mitoses counting modalities was high. These results suggest that mitoses counting on WSI can well be done, and validate the presented AI algorithm for pathologist supervised use in daily practice. Further research is required to advance our knowledge of AI-MC, but it appears at least non-inferior to LM-MC.
Collapse
Affiliation(s)
- Stijn A. van Bergeijk
- Department of Pathology, University Medical Center Utrecht, Postal Box 85500, 3508 GA Utrecht, The Netherlands
| | - Nikolas Stathonikos
- Department of Pathology, University Medical Center Utrecht, Postal Box 85500, 3508 GA Utrecht, The Netherlands
| | - Natalie D. ter Hoeve
- Department of Pathology, University Medical Center Utrecht, Postal Box 85500, 3508 GA Utrecht, The Netherlands
| | - Maxime W. Lafarge
- Medical Image Analysis Group (IMAG/e), Eindhoven University of Technology, Eindhoven, The Netherlands
- Computational and Translational Pathology Group, Department of Pathology and Molecular Pathology, University Hospital and University of Zürich, Schmelzbergstrasse 12, 8091 Zurich, Switzerland
| | - Tri Q. Nguyen
- Department of Pathology, University Medical Center Utrecht, Postal Box 85500, 3508 GA Utrecht, The Netherlands
| | - Paul J. van Diest
- Department of Pathology, University Medical Center Utrecht, Postal Box 85500, 3508 GA Utrecht, The Netherlands
| | - Mitko Veta
- Medical Image Analysis Group (IMAG/e), Eindhoven University of Technology, Eindhoven, The Netherlands
| |
Collapse
|
8
|
Mousavi SE, Grützner F, Patil JG. Enhanced mitotic arrest and chromosome resolution for cytogenetic analysis in the eastern mosquitofish, Gambusia holbrooki. Acta Histochem 2023; 125:152029. [PMID: 37062122 DOI: 10.1016/j.acthis.2023.152029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/11/2023] [Accepted: 04/13/2023] [Indexed: 04/18/2023]
Abstract
Maximising the number of cells arrested at metaphase and their resolution is fundamentally important for molecular cytogenetic investigations, particularly in fish, which typically yield low mitotic index and have highly condensed chromosomes. To overcome these limitations, fish were injected with a mitotic stimulator (the yeast, Saccharomyces cerevisiae) to improve the mitotic index, and the intercalating agent ethidium bromide to produce elongated chromosomes. Specifically, adults were injected with activated yeast and then Colcemid (0.025 µg/µl solution, 10 µl per 1 g of body weight) at 24-96 h post yeast injections, followed by chromosome preparations from multiple tissues. Results showed that gill tissue had the highest number of dividing cells at 72 h post yeast exposure with no significant (p > 0.05) differences between the sexes. Nonetheless, sex-specific differences in the mitotic index were observed in spleen, kidney, and liver, which may be attributed to sex-specific differences in immune responses. For elongation of mitotic chromosomes, individuals (both sexes) were first injected with activated yeast and after 48 h with ethidium bromide (2 or 4 µg/ml) and Colcemid (0.05 µg/µl solution, 10 µl per 1 g of body weight). Following which, animals were sampled at three time points (1, 4 and 8 h) for chromosome preparations. The results show that the optimum elongation of metaphase chromosomes of males and females was achieved by using 2 µg/ml and 4 µg/ml, respectively, for 1 h. Interestingly, the average mitotic chromosome length (μm) of males and females post-ethidium bromide exposure was significantly different (p < 0.05) for both concentrations, except at 1 h exposure for 2 µg/ml EtBr. Such differences can be attributed to overall chromosomal condensation differences between sexes. Regardless, the increased mitotic index and chromosome resolution could benefit cytogenetic studies in other fish species.
Collapse
Affiliation(s)
- Seyed Ehsan Mousavi
- Laboratory of Molecular Biology, Institute for Marine and Antarctic Studies, University of Tasmania, Taroona, TAS 7053, Australia; School of Medicine, University of Tasmania, Hobart, TAS 7000, Australia.
| | - Frank Grützner
- School of Biological Sciences, University of Adelaide, Adelaide, SA 5005, Australia
| | - Jawahar G Patil
- Laboratory of Molecular Biology, Institute for Marine and Antarctic Studies, University of Tasmania, Taroona, TAS 7053, Australia
| |
Collapse
|
9
|
Batra PJ, Kumari A, Liao VWY, Hibbs DE, Groundwater PW, Panda D. 3,5-bis(styryl)pyrazole inhibits mitosis and induces cell death independent of BubR1 and p53 levels by depolymerizing microtubules. J Biochem 2023:7114020. [PMID: 37039772 DOI: 10.1093/jb/mvad031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 03/15/2023] [Indexed: 04/12/2023] Open
Abstract
Here, we show that 3,5-bis[(1E)-2-(2,6-dichlorophenyl)ethenyl]-1H-pyrazole 2l depolymerizes microtubules and reduces the number of growing tips of microtubules. The fluorescence recovery after photobleaching experiment in live MCF-7 cells showed that pyrazole 2l suppresses spindle microtubule dynamics. Further, the compound inhibits chromosome movements, activates the spindle assembly checkpoint, and blocks mitosis in MCF-7 cells. Pyrazole 2l treatment induced cell death in a variety of pathways. Pyrazole 2l induces cell death independent of BubR1 and p53 levels of MCF-7 cells upon microtubule depolymerization. Further, pyrazole 2l increases the interaction between NF-κB and microtubules and enhances the nuclear localization of NF-κB at its half-maximal proliferation inhibitory concentration while a high concentration of the compound reduced the nuclear localization of NF-κB. Interestingly, the compound exerted significantly stronger antiproliferative effects in cancerous cells than in non-cancerous cells. The results indicated that pyrazole 2l inhibits mitosis by targeting microtubules, induces several types of cell death stimuli, and suggest its potential as a lead in developing anticancer agent.
Collapse
Affiliation(s)
- Pooja J Batra
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, 400076, India
| | - Anuradha Kumari
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, 400076, India
| | - Vivian W Y Liao
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - David E Hibbs
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Paul W Groundwater
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Dulal Panda
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, 400076, India
- National Institute of Pharmaceutical Education and Research, SAS Nagar, Punjab, 160062, India
| |
Collapse
|
10
|
M N N, J K, S R S, Raavi V. The Role of Insulin-like Growth Factor-Axis and Mitotic Index in South Indian Neonates with Small for Gestational Age. Fetal Pediatr Pathol 2023; 42:216-226. [PMID: 35712880 DOI: 10.1080/15513815.2022.2086950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE IGF-axis and mitotic capacity of cells play a vital role in fetal growth. We compared IGF1, IGF2, and IGFBP3 protein levels, mitotic indices, IGFR1 and IGFR2 mRNA expression in appropriate for gestational age (AGA) and small for gestational age (SGA) neonates of Indian women. METHODS Cord blood (n = 80) and placental samples (n = 40) were collected from AGA and SGA neonates. Plasma IGF1, IGF2, and IGFBP3 proteins were measured by ELISA. IGFR1 and IGFR2 mRNA expression in the placenta were analyzed by qRT-PCR. Cord blood was cultured in vitro and mitotic index was obtained. RESULTS IGF1 (p = 1), and IGF2 (p = 0.69) protein levels did not differ, whereas IGFBP3 (p = 0.02) was significantly less in SGA compared to AGA neonates. Down-regulation of IGFR1 (3.9-folds) and IGFR2 (2.8-folds) mRNA and reduced mitotic index of lymphocytes was observed in SGA (p = 0.001) compared to AGA neonates. CONCLUSION Our results showed that, SGA neonates displayed down-regulated IGFR1 and IGFR2 mRNA, decreased IGFBP3 protein and mitotic index.
Collapse
Affiliation(s)
- Nithya M N
- Department of Cell Biology and Molecular Genetics, Sri Devaraj Urs Academy of Higher Education and Research (Deemed to be University), Kolar 563 103, Karnataka, India
| | - Krishnappa J
- Department of Paediatrics, Sri Devaraj Urs Medical College, Sri Devaraj Urs Academy of Higher Education and Research (Deemed to be University), Kolar 563 103, Karnataka, India
| | - Sheela S R
- Department of Obstetrics and Gynaecology, Sri Devaraj Urs Medical College, Sri Devaraj Urs Academy of Higher Education and Research (Deemed to be University), Kolar 563 103, Karnataka, India
| | - Venkateswarlu Raavi
- Department of Cell Biology and Molecular Genetics, Sri Devaraj Urs Academy of Higher Education and Research (Deemed to be University), Kolar 563 103, Karnataka, India
| |
Collapse
|
11
|
Pepey E, Conéjéro G, Ndrianaivo EN, Verdeil JL, Mortillaro JM, Boggio D, Raliniaina M, Pouil S. Cytogenotoxicity Screening of Urban and Rural Marshes: An Integrated In Vivo Approach Coupling Fish and Plant-Based Tests Adapted for Low-Income Countries. Environ Toxicol Chem 2023; 42:1266-1275. [PMID: 36896658 DOI: 10.1002/etc.5605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/30/2022] [Accepted: 03/08/2023] [Indexed: 05/17/2023]
Abstract
Effects of anthropogenic activities such as urbanization, population growth, and agriculture on water quality are major concerns particularly in low-income countries where water quality monitoring can be challenging. The purpose of the present study was to evaluate the cytogenotoxic potential of water from urban and rural Malagasy marshes, coupling a fish (Nile tilapia, Oreochromis niloticus) and a plant (Allium cepa) species as bioindicators. The fish and plants were exposed for 72 h to water sampled in the two locations investigated. Using the comet assay on fish erythrocytes, DNA strand breaks were assessed, while mitotic index and nucleolar alterations were estimated in cells of the plant root apex. Comet assays revealed significant DNA strand breaks to fish erythrocytes in both the marshes investigated while the mitotic index and nucleolar characteristics in the roots of A. cepa mainly highlighted potential cytotoxicity in the urban marsh. Our results demonstrate the advantages of coupling in vivo biological test systems to screen potential cytogenotoxicity of surface water in low-income countries where comprehensive data sets of aquatic contaminants are often lacking. Environ Toxicol Chem 2023;00:1-10. © 2023 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
Collapse
Affiliation(s)
- Elodie Pepey
- CIRAD, UMR ISEM, Montpellier, France
- ISEM, Univ Montpellier, CNRS, IRD, CIRAD, Montpellier, France
| | - Geneviève Conéjéro
- IPSiM, Univ Montpellier, CNRS, Institut Agro Montpellier, INRAE, Montpellier, France
| | - Elia Njara Ndrianaivo
- Department of Zootechnical, Veterinary and Fish Research, FOFIFA, Antananarivo, Madagascar
| | - Jean-Luc Verdeil
- PHIV, CIRAD, UMR AGAP Institut, Montpellier, France
- UMR AGAP Institut, CIRAD, INRAE, Institut Agro, Univ Montpellier, Montpellier, France
| | - Jean-Michel Mortillaro
- CIRAD, UMR ISEM, Montpellier, France
- ISEM, Univ Montpellier, CNRS, IRD, CIRAD, Montpellier, France
- Department of Zootechnical, Veterinary and Fish Research, FOFIFA, Antananarivo, Madagascar
| | - David Boggio
- Department of Information Technologies, CIRAD, Montpellier, France
| | - Modestine Raliniaina
- Department of Zootechnical, Veterinary and Fish Research, FOFIFA, Antananarivo, Madagascar
| | - Simon Pouil
- Agence de Recherche pour la Biodiversité (ARBRE), La Réunion, France
| |
Collapse
|
12
|
Abstract
Cellular division is a fundamental process of cellular growth. First, cells replicate their DNA in S phase and then undergo mitosis which, under normal conditions, leads to complete cell division. Moreover, mitotic activity correlates to cellular growth activity. The simplest and classical method to measure mitotic activity (mitotic index (MI)), is the manual counting of mitotic cells among a given cell population of interest. The latter can be accomplished via phase contrast microscope observation. However, Giemsa staining may improve accuracy and consistency. Fluorescence immunostaining targeting specific phosphorylations of proteins at critical cell cycle steps will provide further improved analysis via high-throughput capacity of flow or imaging cytometer. Finally, time lapse image analysis provides quantitative and qualitative metrics delineating the process of cellular division including timing of division, duration of mitosis, and failure to procced through or complete mitosis.
Collapse
Affiliation(s)
- Takamitsu A Kato
- Department of Environmental & Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA.
| | - Jeremy S Haskins
- Department of Pediatrics and Human Development & Department of Pharmacology & Toxicology, Michigan State University, East Lansing, MI, USA
| |
Collapse
|
13
|
Ali MM, Fatima A, Nawaz S, Rehman A, Javed M, Nadeem A. Cytotoxic and genotoxic evaluation of bisphenol S on onion root tips by Allium cepa and comet tests. Environ Sci Pollut Res Int 2022; 29:88803-88811. [PMID: 35836054 DOI: 10.1007/s11356-022-21888-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 07/02/2022] [Indexed: 06/15/2023]
Abstract
Bisphenol S (BPS) is an analog of bisphenol A, which is used as substitute of BPA in many products like airport luggage tags, baby bottles, plastics, and epoxy resins etc. Bisphenol S can cause toxic effects in different organisms, i.e., mice, rat, zebrafish, and C.elegans, etc. Bisphenol S is also known as "endocrine disruptor" due to its ability to mimic the endocrine receptors. So, the aim of this study was to evaluate the cytotoxic and genotoxic effects of bisphenol S on meristematic cells present in onion root tips through Allium cepa (A.cepa) and comet tests. Root growth inhibition was evaluated by root growth inhibition assay. Mitotic index (MI) and chromosomal aberrations (CAs) were assessed by A.cepa assay. DNA damage was evaluated by comet assay. Root growth of A.cepa was inhibited due to bisphenol S. LC50 value calculated by root growth inhibition assay for bisphenol S was (2.6±0.63, 50 μg/ml). Mitotic index was reduced, and chromosomal aberrations were observed, i.e., stickiness, polyploidy, and disturbed ana-telophase in anaphase and telophase stages of mitosis. In case of comet assay, DNA damage was increased in statistically significant manner (p ≤ 0.05). It was concluded that bisphenol S constitutes cytotoxic and genotoxic effects on A. cepa root meristematic cells. Moreover, it is suggested to explore more toxicity studies of bisphenol S at molecular level.
Collapse
Affiliation(s)
- Muhammad Muddassir Ali
- Institute of Biochemistry and Biotechnology, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan.
| | - Areej Fatima
- Institute of Biochemistry and Biotechnology, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Sadia Nawaz
- Institute of Biochemistry and Biotechnology, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Abdul Rehman
- Department of Epidemiology and Public Health, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Maryam Javed
- Institute of Biochemistry and Biotechnology, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Asif Nadeem
- Department of Biotechnology, Virtual University of Pakistan, Lahore, 54000, Pakistan
| |
Collapse
|
14
|
Menzyanova NG, Shishatskaya EI, Pyatina SA, Volova TG. Cytogenotoxic activity of herbicidal and fungicidal pesticides on Triticum aestivum root meristem. Environ Sci Pollut Res Int 2022; 29:87602-87612. [PMID: 35818017 DOI: 10.1007/s11356-022-21936-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 07/05/2022] [Indexed: 06/15/2023]
Abstract
Phytotoxicity, cytotoxicity and genotoxicity of pesticides with various mechanisms of targeted activity were studied in a hydroponic culture of 2-day-old seedlings of Triticum aestivum. All studied pesticides (with the exception of metribuzin) exhibited dose-dependent phytotoxicity (inhibited the growth of the main root and reduced the yield of root biomass). All studied pesticides did not affect mitotic index in the root apex meristem but did affect the duration of some phases of mitosis. Herbicides increased, while fungicides, on the contrary, decreased the duration of the cytokinesis phase. All pesticides (1 μg/mL) exhibited genotoxic activity: in the root apex meristem the number of cells with mitotic abnormalities was significantly higher than in the control variant (7-14 times). The genotoxic activity of metribuzin and tebuconazole was 2 times lower than for tribenuron-methyl, fenoxaprop-P-ethyl, epoxiconazole and azoxystrobin. The genotoxicity of the studied pesticides was combined: depending on the class of the pesticide, clastogenic or aneugenous effects dominated.
Collapse
Affiliation(s)
| | - Ekaterina Igorevna Shishatskaya
- Siberian Federal University, 79 Svobodnyi av., Krasnoyarsk, 660041, Russia.
- Institute of Biophysics SB RAS, Federal Research Center 'Krasnoyarsk Science Center SB RAS', 50/50 Akademgorodok, Krasnoyarsk, 660036, Russia.
| | | | - Tatiana Grigorievna Volova
- Siberian Federal University, 79 Svobodnyi av., Krasnoyarsk, 660041, Russia
- Institute of Biophysics SB RAS, Federal Research Center 'Krasnoyarsk Science Center SB RAS', 50/50 Akademgorodok, Krasnoyarsk, 660036, Russia
| |
Collapse
|
15
|
Samanta A, Banerjee S, Maity TR, Jahnavi J, Datta S. Towards establishment of a plant-based model to assess the novel anti-cancerous lead molecule(s): An in silico, in vivo and in vitro assessment of some potential anti-cancerous drugs on Lathyrus sativus L. Protoplasma 2022; 259:1455-1466. [PMID: 35195768 DOI: 10.1007/s00709-022-01745-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 02/09/2022] [Indexed: 06/14/2023]
Abstract
The drug development process is one of the important aspects of medical biology. The classical lead identification strategy in the way of drug development based on animal cell is time-consuming, expensive and involving ethical issues. The following study aims to develop a novel plant-based screening of drugs. Study shows the efficacy of certain anti-cancerous drugs (Pemetrexed, 5-Fluorouracil, Methotrexate, Topotecan and Etoposide) on a plant-based (Lathyrus sativus L.) system. Two important characteristics of cancer cells were observed in the colchicine-treated polyploid cell and the callus, where the chromosome numbers were unusual and the division of cells were uncontrolled respectively. With increasing concentration, the drugs significantly reduced the mitotic index, ploidy level and callus growth. Increasing Pemetrexed concentration decreased the plant DHFR activity. A decrease in total RNA content was observed in 5-FU and Methotrexate with increasing concentrations of the drugs. Etoposide and Topotecan inhibited plant topoisomerase II and topoisomerase I activities, which was justified through plasmid nicking and comet assay, respectively. Molecular and biochemical study revealed similar results to the animal system. The in silico study had been done, and the structural similarity of drug binding domains of L. sativus and human beings had also been established. The binding site of the selected drugs to the domains of plant target proteins was also determined. Experimental results are significant in terms of the efficacy of known anti-cancerous drugs on the plant-based system. The proposed assay system is a cost-effective, convenient and less time-consuming process for primary screening of anti-cancerous lead molecules.
Collapse
Affiliation(s)
- Aveek Samanta
- Department of Botany, Prabhat Kumar College, Purba Medinipur, Contai, 721401, West Bengal, India
- Department of Biotechnology, Haldia Institute of Technology, Purba Medinipur, Haldia, 721657, West Bengal, India
| | - Saptadipa Banerjee
- Department of Biotechnology, Haldia Institute of Technology, Purba Medinipur, Haldia, 721657, West Bengal, India
| | - Tilak Raj Maity
- Department of Biotechnology, Haldia Institute of Technology, Purba Medinipur, Haldia, 721657, West Bengal, India
| | - Jangala Jahnavi
- Department of Biological Sciences, Birla Institute of Technology and Science, Pilani, 333031, Rajasthan, India
| | - Siraj Datta
- Department of Biotechnology, Haldia Institute of Technology, Purba Medinipur, Haldia, 721657, West Bengal, India.
- Subarnarekha Mahavidyalaya, Gopiballavpur, Jhargram, 721506, West Bengal, India.
| |
Collapse
|
16
|
Alabi OA, Atanda HC, Olumurewa JAV. Cytogenotoxicity of the aqueous extract of Parquetina nigrescens leaf using Allium cepa assay. Protoplasma 2022; 259:1417-1425. [PMID: 35146572 DOI: 10.1007/s00709-022-01741-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 01/19/2022] [Indexed: 06/14/2023]
Abstract
Parquetina nigrescens has been used for decades in ethnomedicine for its antioxidant, antimicrobial, anti-inflammatory, analgesic, and aphrodisiac properties. In this study, the cytotoxic and genotoxic effect of aqueous crude leaf extracts of P. nigrescens on the root meristematic cells of Allium cepa was examined. Volatile organic compounds (VOCs) present in the plant extract were also identified using gas chromatography-mass spectrometry (GC-MS). The extract was prepared with tap water as is locally practised by many Nigerians. Onion bulbs were exposed to 1, 5, 10, 20, and 50% concentrations of the extract for the analysis of root growth inhibition and chromosomal aberration. Lead nitrate (10 ppm) and tap water were used as the positive and negative controls, respectively. The result showed cytotoxicity which was observed as statistically significant (p <p0.05), concentration-dependent inhibition of root growth from 5 to 50% concentrations of the plant extract compared with the negative control. At 10 and 20% concentrations, the extract showed statistically significant (p < 0.05) genotoxicity by inducing different chromosomal aberrations such as fragments, disturbed spindle, delayed, and sticky chromosomes. The GC-MS analysis identified 14 VOCs of which 1, 2-benzenediol, 4H-pyran-4-one, 2, 3-dihydro-3,5-dihydroxy-6-methyl, and 5-hydroxymethylfurfural were believed to be responsible for the observed cytogenotoxicity. These results show that the aqueous crude leaf extracts of P. nigrescens at high concentrations are cytogenotoxic and therefore should be consumed with caution.
Collapse
Affiliation(s)
- Okunola Adenrele Alabi
- Department of Biology, Federal University of Technology, Akure, Ondo State, Nigeria.
- Department of Biotechnology, Federal University of Technology, Akure, Ondo State, Nigeria.
| | - Halimat Chisom Atanda
- Department of Biotechnology, Federal University of Technology, Akure, Ondo State, Nigeria
| | - John A V Olumurewa
- Department of Biotechnology, Federal University of Technology, Akure, Ondo State, Nigeria
| |
Collapse
|
17
|
Mendoza NGA, Mercado SAS. Cytogenotoxicity of fifth-generation quaternary ammonium using three plant bioindicators. Environ Toxicol Pharmacol 2022; 95:103972. [PMID: 36089239 DOI: 10.1016/j.etap.2022.103972] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 09/01/2022] [Accepted: 09/06/2022] [Indexed: 06/15/2023]
Abstract
The investigation aimed to determine the cytogenotoxic effect of fifth-generation quaternary ammonium using three plant species as bioindicators. Bulbs of A. cepa and seeds of L. culinaris and P. sativum were exposed to different concentrations of fifth-generation quaternary ammonium and a control solution of distilled water for 72 h. The results showed that the A. cepa bioindicator presented the greatest reduction in root length at 50 mg L-1 and no mitotic index at 40 and 50 mg L-1, reaching 100% mitotic inhibition. Cell abnormalities were present among the three bioindicator species, where the highest index of micronuclei occurred at 50 mg L-1, being A. cepa the bioindicator with the highest relative rate of abnormality (25.28%). It was concluded that fifth-generation quaternary ammonium, in all treatments, caused a cytogenotoxic effect on the apical meristematic cells of the three species, A. cepa was the most sensitive species.
Collapse
Affiliation(s)
| | - Seir Antonio Salazar Mercado
- Departamento de Biología, Universidad Francisco de Paula Santander, Avenida Gran Colombia No. 12E-96B, Colsag, San José de Cúcuta, Colombia.
| |
Collapse
|
18
|
Alaguprathana M, Poonkothai M, Al-Ansari MM, Al-Humaid L, Kim W. Cytogenotoxicity assessment in Allium cepa roots exposed to methyl orange treated with Oedogonium subplagiostomum AP1. Environ Res 2022; 213:113612. [PMID: 35716816 DOI: 10.1016/j.envres.2022.113612] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 05/14/2022] [Accepted: 06/02/2022] [Indexed: 06/15/2023]
Abstract
The present study is an attempt to assess the cytogenotoxic effect of untreated and methyl orange treated with Oedogonium subplagiostomum AP1 on Allium cepa roots. On the fifth day, root growth, root length, mitotic index, mitotic inhibition/depression, and chromosomal abnormalities were measured in root cells of Allium cepa subjected to untreated and treated methyl orange dye solutions. Roots exposed to treated dye solution exhibited maximum root growth, root length and mitotic index, whereas roots exposed to untreated dye solution had the most mitotic inhibition and chromosomal abnormalities. Allium cepa exposed to untreated dye solution revealed chromosomal aberrations such as disoriented and abnormal chromosome grouping, vagrant and laggard chromosomes, chromosomal loss, sticky chain and disturbed metaphase, pulverised and disturbed anaphase, chromosomal displacement in anaphase, abnormal telophase, and chromosomal bridge at telophase, spindle disturbances and binucleate cells. The comet test was used to quantify DNA damage in the root cells of A. cepa subjected to untreated and treated methyl orange solutions in terms of tail DNA (percent) and tail length. The results concluded that A. cepa exposed to methyl orange induced DNA damage whereas meager damage was noted in the treated dye solution. As a result, the research can be used as a biomarker to detect the genotoxic effects of textile dyes on biota.
Collapse
Affiliation(s)
- M Alaguprathana
- Department of Zoology, Adhiyaman Arts and Science College for Women, Uthangarai, 635 207, Krishnagiri (Dt), Tamil Nadu, India
| | - M Poonkothai
- Department of Zoology, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, 641 043, Tamil Nadu, India.
| | - Mysoon M Al-Ansari
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Latifah Al-Humaid
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Woong Kim
- Department of Environmental Engineering, Kyungpook National University, Daegu, 41566, Republic of Korea.
| |
Collapse
|
19
|
Liman R, Ali MM, Istifli ES, Ciğerci İH, Bonciu E. Genotoxic and cytotoxic effects of pethoxamid herbicide on Allium cepa cells and its molecular docking studies to unravel genotoxicity mechanism. Environ Sci Pollut Res Int 2022; 29:63127-63140. [PMID: 35449332 DOI: 10.1007/s11356-022-20166-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 04/05/2022] [Indexed: 06/14/2023]
Abstract
Pethoxamid is chloroacetamide herbicide. Pethoxamid is commonly used to kill different weeds in various crops. Pethoxamid can leach in the water and soil and can cause toxic effects to other non-target species. Current study is therefore aimed to perform the investigation of the cytotoxic and genotoxic effects of pethoxamid on Allium cepa cells.The root growth, mitotic index (MI), chromosomal aberrations (CAs), and DNA damage were assessed through root growth inhibition, A. cepa ana-telophase, and alkaline comet assays, respectively. Furthermore, molecular docking was performed to evaluate binding affinity of pethoxamid on DNA and very-long-chain fatty acid (VLCFA) synthases. In root growth inhibition test, onion root length was statistically significantly decreased in a concentration dependent manner. Concentration- and time-dependent decreases in MI were observed, whereas increase in CAs such as disturbed ana-telophase, chromosome laggards, stickiness, anaphase bridges, and DNA damage was caused by the pethoxamid on A. cepa root cells. Molecular docking revealed that pethoxamid binds selectively to GC-rich regions in the minor groove of the DNA structure and showed remarkable binding affinity against all synthases taking part in the sequential biosynthesis of VLCFAs. It was concluded that the pethoxamid-induced genotoxicity and cytotoxicity may be through multiple binding ability of this herbicide with DNA and VLCFA synthases.
Collapse
Affiliation(s)
- Recep Liman
- Molecular Biology and Genetics Department, Faculty of Arts and Sciences, Uşak University, 1 Eylül Campus, 64300, Usak, Turkey
| | - Muhammad Muddassir Ali
- Institute of Biochemistry and Biotechnology, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan.
| | - Erman Salih Istifli
- Department of Biology, Faculty of Science and Literature, Cukurova University, 01330, Adana, Turkey
| | - İbrahim Hakkı Ciğerci
- Molecular Biology and Genetics Department, Faculty of Science and Literatures, Afyon Kocatepe University, 03200, Afyon, Turkey
| | - Elena Bonciu
- Department of Agricultural and Forestry Technology, Faculty of Agronomy, University of Craiova, 13 A.I. Cuza Street, 200585, Craiova, Romania
| |
Collapse
|
20
|
Khan S, Zeyad MT, Malik A. Genotoxicity assessment of textile waste contaminated soil and characterization of textile dye degradation by a novel indigenous bacterium Ochrobactrum intermedium BS39. Chemosphere 2022; 299:134082. [PMID: 35218787 DOI: 10.1016/j.chemosphere.2022.134082] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 02/18/2022] [Accepted: 02/20/2022] [Indexed: 06/14/2023]
Abstract
The harmful effects of textile wastewater irrigation practices on the crop productivity and soil nutrient levels are primarily related with the accumulation of recalcitrant azo dyes in the soil. Therefore, toxicity assessment of the textile waste contaminated soil along with the development of a powerful soil bioremediation strategy is a challenging task for the researchers. Present study aimed to evaluate potential toxicity of the textile wastewater irrigated soil collected from Panki industrial site 5, Kanpur, India employing Ames Salmonella/mammalian microsome test, Escherichia coli DNA repair defective mutation assay and Allium cepa chromosomal aberration assay. The results of the Ames test and DNA repair defective mutation test showed that all the organic extracts of the contaminated soil samples induced different degrees of DNA damage, indicating the existence of mutagenicity and genotoxicity. Additionally, in A. cepa root cells, the contaminated soil altered mitotic index and caused chromosomal abnormalities. Results of the study demonstrated potential health risks related with the irrigation of textile wastewater. Keeping in view of the above scenario, the study led to the isolation and characterization of a novel indigenous bacterium capable of tolerating very high concentration of reactive black 5 dye (500 μg-mL-1) and salt (20 gL-1) with concurrently high efficiency of the dye degradation i.e., 93% decolorization at temperature of 37 °C and in pH range of 5-9. Based on the 16S rRNA gene sequencing, the bacterium was identified as Ochrobactrum intermedium. Further, dye degradation products were identified as sodium-2-hydrosulfonylethyl sulphate and sodium-3-aminonaphthalene-2-sulfonate by Gas Chromatography-Mass spectrometry; and this isolate can be exploited for bioremediation of textile waste contaminated soils.
Collapse
Affiliation(s)
- Sana Khan
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh, Uttar Pradesh, 202002, India
| | - Mohammad Tarique Zeyad
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh, Uttar Pradesh, 202002, India
| | - Abdul Malik
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh, Uttar Pradesh, 202002, India.
| |
Collapse
|
21
|
Mota TFM, Sampaio AR, Vasconcelos MW, de Castilhos Ghisi N. Allium cepa test vs. insecticides: a scientometric and meta-analytical review. Environ Sci Pollut Res Int 2022; 29:42678-42691. [PMID: 35089509 DOI: 10.1007/s11356-021-15953-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 08/09/2021] [Indexed: 06/14/2023]
Abstract
Insecticides stand out as the most dangerous pesticides, and many of them can cause cytotoxic and genotoxic effects in organisms. For this reason, a systematic review was performed focusing on the effect of insecticides on Allium cepa system by two ways: (1) a scientometric study to identify trends and gaps in the literature on the evaluation of insecticides to guide future research efforts and (2) a meta-analytical approach compiling the information to obtain an overall result about insecticide effect on A. cepa. It was found that there is an increasing production of articles in this research area. The H-index of our data set was 11, with an average of 13.72 citations per item. The leader country in this research area was India, followed by Turkey and Brazil. The best cited research area was "Environmental Sciences" and "Environmental Sciences and Ecology," followed by "Cell Biology." The most used keywords were genotoxicity, pesticides, and insecticide. The meta-analytical test showed that the number of micronuclei found in onion cells treated with insecticides is higher than that in untreated ones, and the use of pesticides reduced the mitotic index. In conclusion, it is evident the need for more studies about biotechnology, nanotechnology, and biopesticides to develop safer pesticides.
Collapse
Affiliation(s)
- Thais Fernandes Mendonça Mota
- Collegiate of Biological Sciences, Universidade Estadual do Paraná (UNESPAR), Campus Paranavaí, Avenida Gabriel Esperidião, s/n, Jardim Morumbi, 87703-000 Paranavaí, Paraná, Brazil.
- Graduate Program in Biotechnology, Universidade Tecnológica Federal do Paraná (UTFPR), Campus Dois Vizinhos, Estrada para Boa Esperança s/n, km 04, Comunidade Sao Cristovão, P.O. Box 157, Dois Vizinhos, Paraná, 85660-000, Brazil.
| | - Amanda Roberta Sampaio
- Graduate Program in Agroecossistems, Universidade Tecnológica Federal do Paraná (UTFPR), Campus Dois Vizinhos, Estrada para Boa Esperança s/n, km 04, Comunidade Sao Cristovão, P.O. Box 157, Dois Vizinhos, Paraná, 85660-000, Brazil
| | - Marina Wust Vasconcelos
- Graduate Program in Biotechnology, Universidade Tecnológica Federal do Paraná (UTFPR), Campus Dois Vizinhos, Estrada para Boa Esperança s/n, km 04, Comunidade Sao Cristovão, P.O. Box 157, Dois Vizinhos, Paraná, 85660-000, Brazil
| | - Nédia de Castilhos Ghisi
- Graduate Program in Biotechnology, Universidade Tecnológica Federal do Paraná (UTFPR), Campus Dois Vizinhos, Estrada para Boa Esperança s/n, km 04, Comunidade Sao Cristovão, P.O. Box 157, Dois Vizinhos, Paraná, 85660-000, Brazil
| |
Collapse
|
22
|
Eckert GL, Smaniotto TÂ, Dartora N, Pelegrin CMGD, Baroni S. The chemical composition of different leaf extracts of Lantana fucata Lindl. influences its cytotoxic potential: A study using the Allium cepa model. J Ethnopharmacol 2022; 289:115003. [PMID: 35051606 DOI: 10.1016/j.jep.2022.115003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/11/2022] [Accepted: 01/14/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE One of the most popular plants used to treat diseases in Brazil is Lantana fucata. Like most herbal medicines, its consumption is based on popular knowledge, which, despite being considered effective, may cause side effects. AIM OF THE STUDY Since the scientific data on the pharmacological properties of L. fucata are still incipient, this research aimed to evaluate the cytotoxic and genotoxic potential of different types of extracts (infusion, aqueous and hydroalcoholic), characterizing them chemically. MATERIALS AND METHODS The cytotoxicity assay was performed by the A. cepa model. The cytotoxicity parameters studied were number of dividing cells and percentage mitotic index (%MI). RESULTS The result of the A. cepa assay showed that there was a decrease in the number of dividing cells and the percentage mitotic index as concentrations increased, for all extracts, indicating cytotoxicity. However, the hydroalcoholic extract was the most cytotoxic. Chromatography analysis allowed the characterization of secondary metabolites in the extracts, which were very similar. However, a greater abundance of flavonoids and triterpenoids was observed in the hydroalcoholic extract, suggesting that these compounds are responsible for its greater toxicity. CONCLUSIONS Since the highest doses of extracts showed to have a cytotoxic effect, it is suggested that the ingestion of this species occurs in a moderate way.
Collapse
Affiliation(s)
| | | | - Nessana Dartora
- Universidade Federal da Fronteira Sul (UFFS), Cerro Largo, Brazil.
| | - Carla Maria Garlet de Pelegrin
- Universidade Federal da Fronteira Sul (UFFS), Cerro Largo, Brazil; Programa de Pós-Graduação em Ambientes e Tecnologias Sustentáveis (UFFS), Brazil.
| | - Suzymeire Baroni
- Universidade Federal da Fronteira Sul (UFFS), Cerro Largo, Brazil; Programa de Pós-Graduação em Ambientes e Tecnologias Sustentáveis (UFFS), Brazil.
| |
Collapse
|
23
|
von Well E, Booyse M, Fossey A. Effect of gamma irradiation on nucleolar activity in root tip cells of tetraploid Triticum turgidum ssp. durum L. Protoplasma 2022; 259:453-468. [PMID: 34191122 DOI: 10.1007/s00709-021-01684-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 06/14/2021] [Indexed: 06/13/2023]
Abstract
Ionizing irradiation induces positive or negative changes in plant growth (M1) depending on the amount of irradiation applied to seeds or plant parts. The effect of 50-350 Gy gamma irradiation of kernels on nucleolar activity, as an indicator of metabolic activity, in root tip cells of tetraploid wheat Triticum turgidum ssp. durum L. cv. Orania (AABB) was investigated. The number of nucleoli present in nuclei and micronuclei as well as the mitotic index in the different irradiation dosages was used as an indicator of the cells entering mitosis, the chromosomes with nucleolar organizer regions that are active as well as chromosome doubling in the event of unsuccessful mitotic division. Nucleolar activity was investigated from 17.5 to 47.5 h after the onset of imbibition to study the first mitotic division and its consequences on the cells that were in G2 and G1 phases at the time of gamma irradiation. Untreated material produced a maximum of four nucleoli formed by the nucleolar organizing regions (NORs) on chromosomes 1B and 6B. In irradiated material, additional nucleoli were noted that are due to the activation of the NORs on chromosome 1A in micronuclei. The onset of mitosis was highly significantly retarded in comparison to the control due to checkpoints in the G2 phase for the repairing of damaged DNA. This study is the first to report on the appearance of nucleoli in micronuclei as well as activation of NORs in the micronuclei that are inactive in the nucleus and the effect of chromosome doubling on nucleolar activity in the event of unsuccessful mitotic division.
Collapse
Affiliation(s)
- Eben von Well
- ARC-Small Grain, Field Crops, Division, Private Bag X29, Bethlehem, 9700, South Africa.
| | - Mardé Booyse
- ARC-Biometry, Private Bag X5013, Stellenbosch, 7599, South Africa
| | - Annabel Fossey
- Central University of Technology, 1 Park Street, Bloemfontein, 9301, South Africa
| |
Collapse
|
24
|
Gupta K, Srivastava S, Saxena G, Kumar A. Evaluation of Phytoremediation Potential of Pteris vittata L. on Arsenic Contaminated Soil Using Allium cepa Bioassay. Bull Environ Contam Toxicol 2022; 108:423-429. [PMID: 34170357 DOI: 10.1007/s00128-021-03291-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 06/09/2021] [Indexed: 06/13/2023]
Abstract
The present study assessed the utility of Allium cepa based cyto-genotoxicity bioassays in evaluating the arsenic toxicity and remediation potential of Pteris vittata on contaminated soil of Lakhimpur-Kheri district. Untreated and P. vittata treated soil extracts were used for cyto-genotoxicity tests in A. cepa. Results showed that P. vittata extracted high concentration of arsenic, which ranged from 220 to 1420 mgkg-1 in different soils. Cyto-genotoxic assessment of A. cepa showed that extract of P. vittata treated soil had lower cyto-genotoxic effects as compared to untreated soil. A higher mitotic index (10%) while lower mitotic depression (29%), relative abnormality rate (10%), chromosomal aberrations (1%) and micronuclei (2%) were detected in root meristematic cells of A. cepa exposed to remediated soil extract in comparison to untreated soil. The studies provide a simple, rapid and economic cyto-genotoxicity bioassay tool for evaluating toxicity of contaminated soils of contaminated soils as well as revealed the phytoremdiation property of P. vittata against arsenic toxicity.
Collapse
Affiliation(s)
- Kiran Gupta
- Department of Botany, Lucknow University, Lucknow, 226007, India
| | - Sudhakar Srivastava
- Plant Stress Biology Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, 221005, India
| | - Gauri Saxena
- Department of Botany, Lucknow University, Lucknow, 226007, India
| | - Amit Kumar
- Department of Botany, Lucknow University, Lucknow, 226007, India.
| |
Collapse
|
25
|
Seven G, Silahtaroglu G, Kochan K, Ince AT, Arici DS, Senturk H. Use of Artificial Intelligence in the Prediction of Malignant Potential of Gastric Gastrointestinal Stromal Tumors. Dig Dis Sci 2022; 67:273-81. [PMID: 33547537 DOI: 10.1007/s10620-021-06830-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 01/07/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND AIMS This study aimed to investigate whether AI via a deep learning algorithm using endoscopic ultrasonography (EUS) images could predict the malignant potential of gastric gastrointestinal stromal tumors (GISTs). METHODS A series of patients who underwent EUS before surgical resection for gastric GISTs were included. A total of 685 images of GISTs from 55 retrospectively included patients were used as the training data set for the AI system. Convolutional neural networks were constructed to build a deep learning model. After applying the synthetic minority oversampling technique, 70% of the generated images were used for AI training and 30% were used to test AI diagnoses. Next, validation was performed using 153 EUS images of 15 patients with GISTs. In addition, conventional EUS features of 55 patients in the training cohort were evaluated to predict the malignant potential of GISTs and mitotic index. RESULTS The overall sensitivity, specificity, and accuracy of the AI system for predicting malignancy risk were 83%, 94%, and 82% in the training dataset, and 75%, 73%, and 66% in the validation cohort, respectively. When patients were divided into low-risk and high-risk groups, sensitivity, specificity, and accuracy increased to 99% in the training dataset and 99.7%, 99.7%, and 99.6%, respectively, in the validation cohort. No conventional EUS features were found to be associated with either malignant potential or mitotic index (P > 0.05). CONCLUSIONS AI via a deep learning algorithm using EUS images could predict the malignant potential of gastric GISTs with high accuracy.
Collapse
|
26
|
Kwon SM, Kim JH, Kim YH, Hong SH, Cho YH, Kim CJ, Nam SJ. Clinical Implications of the Mitotic Index as a Predictive Factor for Malignant Transformation of Atypical Meningiomas. J Korean Neurosurg Soc 2021; 65:297-306. [PMID: 34879641 PMCID: PMC8918253 DOI: 10.3340/jkns.2021.0114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 08/23/2021] [Indexed: 11/27/2022] Open
Abstract
Objective Intracranial atypical meningiomas have a poor prognosis and high rates of recurrence. Moreover, up to one-third of the recurrences undergo high-grade transformation into malignant meningiomas. We aimed to investigate the clinical factors that can predict the propensity of malignant transformation from atypical to anaplastic meningiomas. Methods Between 2001 and 2018, all patients with atypical meningioma, in whom the tumors had undergone malignant transformation to anaplastic meningioma, were included. The patients' medical records documenting the diagnosis of atypical meningioma prior to malignant transformation were reviewed to identify the predictors of transformation. The control group comprised 56 patients with atypical meningiomas who were first diagnosed between January 2017 and December 2018 and had no malignant transformation. Results Nine patients in whom the atypical meningiomas underwent malignant transformation were included. The median time interval from diagnosis of atypical meningioma to malignant transformation was 19 months (range, 7-78). The study group showed a significant difference in heterogeneous enhancement (77.8% vs. 33.9%), bone invasion (55.6% vs. 12.5%), mitotic index (MI; 14.8±4.9 vs. 3.5±3.9), and Ki-67 index (20.7±13.9 vs. 9.5±7.1) compared with the control group. In multivariate analysis, increased MI (odds ratio, 1.436; 95% confidence interval, 1.127-1.900; p=0.004) was the only significant factor for predicting malignant transformation. Conclusion An increased MI within atypical meningiomas might be used as a predictor of malignant transformation. Tumors at high risk for malignant transformation might require more attentive surveillance and management than other atypical meningiomas.
Collapse
Affiliation(s)
- Sae Min Kwon
- Department of Neurosurgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea
| | - Jeong Hoon Kim
- Department of Neurological Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Young-Hoon Kim
- Department of Neurological Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Seok Ho Hong
- Department of Neurological Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Young Hyun Cho
- Department of Neurological Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Chang Jin Kim
- Department of Neurological Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Soo Jeong Nam
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| |
Collapse
|
27
|
Romero-Freire A, González V, Groenenberg JE, Qiu H, Auffan M, Cotelle S, Giamberini L. Cytotoxicity and genotoxicity of lanthanides for Vicia faba L. are mediated by their chemical speciation in different exposure media. Sci Total Environ 2021; 790:148223. [PMID: 34111781 DOI: 10.1016/j.scitotenv.2021.148223] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 05/25/2021] [Accepted: 05/29/2021] [Indexed: 06/12/2023]
Abstract
A comprehensive study of the toxicity of lanthanides (LN) in relation to the media composition will enhance the prediction of their potential adverse effects for living organisms. Here we examined the effect of different media on the V. faba root elongation and on the cytotoxic (mitotic index) and the genotoxic (micronucleated cell number) effects from toxicity tests with Ce, Gd and Lu (100, 800 and 6400 μg L-1). Three different exposure media were selected: the standard Hoagland media (SH); an alternative SH, without phosphates (SH-P); and distilled water (DW). In the SH no cyto-genotoxic effects were observed and even, for low LN content, potential root elongation stimulation was reported. The absence of toxic effects was explained by a drastic decrease of the total dissolved LN concentration due to the presence of phosphates causing LN precipitation. In SH-P, LN remained largely soluble and inhibition of root elongation was observed mainly for the highest treatments. While in the tests done in DW, toxic effects were obtained for all treatments. Our results showed that in absence of phosphorous, LN appear mainly as free form and complexed in carbonates and sulphates, and can cause toxic effects, whereas toxicity is not expected when phosphorous is available in aquatic media. The highest LN root contents were observed for the tests using distilled water, possibly due to the absence of competition by Ca2+ for uptake. The present work demonstrated that media composition has a great impact in assessing the ecotoxicology of lanthanides.
Collapse
Affiliation(s)
- Ana Romero-Freire
- Université de Lorraine, CNRS, LIEC, F-57000 Metz, France; Department of Soil Science, University of Granada, Avd. Fuente Nueva, 18002, Granada, Spain.
| | - V González
- Université de Lorraine, CNRS, LIEC, F-57000 Metz, France; LEITAT Technological Center, C/ de la Innovació, 2, 08225 Terrassa, Barcelona, Spain
| | - J E Groenenberg
- Université de Lorraine, CNRS, LIEC, F-57000 Metz, France; Soil Chemistry group, Wageningen University, Wageningen, the Netherlands
| | - H Qiu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - M Auffan
- CEREGE, CNRS, Aix Marseille Univ, IRD, INRAE, Coll France, Aix-en-Provence, France
| | - S Cotelle
- Université de Lorraine, CNRS, LIEC, F-57000 Metz, France
| | - L Giamberini
- Université de Lorraine, CNRS, LIEC, F-57000 Metz, France
| |
Collapse
|
28
|
Castro C, Carvalho A, Pavia I, Bacelar E, Lima-Brito J. Development of grapevine plants under hydroponic copper-enriched solutions induced morpho-histological, biochemical and cytogenetic changes. Plant Physiol Biochem 2021; 166:887-901. [PMID: 34243016 DOI: 10.1016/j.plaphy.2021.07.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 06/14/2021] [Accepted: 07/02/2021] [Indexed: 06/13/2023]
Abstract
Copper (Cu) is an essential micronutrient for plants, but when present in excess, it induces toxicity. In this study, cuttings of four wine-producing varieties of Vitis vinifera L. were used: 'Tinta Barroca', 'Tinto Cão', 'Malvasia Fina' and 'Viosinho'. The grapevine cuttings were distributed by hydroponic solutions enriched with different Cu concentrations (1, 10, 25 and 50 μM) plus control. At the end of the experiment, the root growth was evaluated, and individual roots were collected, fixed, and used for histological sections and chromosome spreads preparation. The higher Cu concentrations induced toxicity and inhibited root growth. However, the grapevine varieties responded with the thickening of the root exodermis and endodermis. In the chromosome spreads, normal and abnormal interphase and mitotic cells were observed in all varieties and treatments. The increase of Cu concentration decreased the nucleolar activity, as seen by reducing the nucleolar number and area. It increased the frequency of interphase cells with anomalies (ICA), but it did not influence total soluble protein concentration. The augment of Cu concentration also decreased the mitotic index (MI) and increased the percentage of dividing cells with anomalies (DCA). Different types of chromosomal anomalies in all mitotic phases, treatments and varieties were found. Overall, the white wine varieties, 'Malvasia Fina' and 'Viosinho', appeared to be more tolerant to the Cu-induced stress because they showed higher root growth and mean MI and lower mean DCA than the red wine varieties.
Collapse
Affiliation(s)
- Cláudia Castro
- Plant Cytogenomics Laboratory, Department of Genetics and Biotechnology, University of Tras-os-Montes and Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal.
| | - Ana Carvalho
- Plant Cytogenomics Laboratory, Department of Genetics and Biotechnology, University of Tras-os-Montes and Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal; Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Tras-os-Montes and Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal; Inov4Agro -Institute for Innovation, Capacity Building and Sustainability of Agri-food Production, University of Tras-os-Montes and Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal.
| | - Ivo Pavia
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Tras-os-Montes and Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal; Inov4Agro -Institute for Innovation, Capacity Building and Sustainability of Agri-food Production, University of Tras-os-Montes and Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal.
| | - Eunice Bacelar
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Tras-os-Montes and Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal; Inov4Agro -Institute for Innovation, Capacity Building and Sustainability of Agri-food Production, University of Tras-os-Montes and Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal; Department of Biology and Environment, University of Tras-os-Montes and Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal.
| | - José Lima-Brito
- Plant Cytogenomics Laboratory, Department of Genetics and Biotechnology, University of Tras-os-Montes and Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal; Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Tras-os-Montes and Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal; Inov4Agro -Institute for Innovation, Capacity Building and Sustainability of Agri-food Production, University of Tras-os-Montes and Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal.
| |
Collapse
|
29
|
Liman R, Ali MM, Ciğerci İH, İstifli ES, Sarıkurkcu C. Cytotoxic and genotoxic evaluation of copper oxychloride through Allium test and molecular docking studies. Environ Sci Pollut Res Int 2021; 28:44998-45008. [PMID: 33860424 DOI: 10.1007/s11356-021-13897-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 04/07/2021] [Indexed: 06/12/2023]
Abstract
Copper oxychloride gained great importance due to its broad-spectrum antifungal action to combat various fungal diseases of plants. However, excess quantity of cupric fungicides on plants causes enzymatic changes and toxic effects. Thus, the current study was aimed to investigate the cytotoxicity and genotoxicity of copper oxychloride on Allium cepa root cells. The root growth, mitotic index (MI), chromosomal aberrations (CAs), and DNA damage were assessed through root growth inhibition, A. cepa ana-telophase, and alkaline comet assays. Furthermore, molecular docking was performed to evaluate binding affinities of two copper oxychloride polymorphs (atacamite and paratacamite) on DNA. In root growth inhibition test, onion root length was statistically significantly decreased by changing the copper oxychloride concentration from lower (2.64±0.11 cm) to higher (0.92±0.12 cm). Concentration- and time-dependent decrease in MI was observed whereas increase in CAs such as disturbed ana-telophase, chromosome laggards, stickiness, anaphase bridges, and DNA damage were caused by the copper oxychloride on A. cepa root cells. Molecular docking results revealed that the two main polymorphs of copper oxychloride (atacamite and paratacamite) bind selectively to G and C nucleotides on the B-DNA structure. It is concluded that the atacamite- and paratacamite-induced DNA damage may be through minor groove recognition and intercalation. Findings of the current study revealed the cytotoxic and genotoxic effects of copper oxychloride on A. cepa root cells. However, further studies should be carried out at the molecular level to reveal the cyto-genotoxic mechanism of action of copper oxychloride in detail.
Collapse
Affiliation(s)
- Recep Liman
- Molecular Biology and Genetics Department, Faculty of Arts and Sciences, Uşak University, 1 Eylül Campus, 64300, Uşak, Turkey
| | - Muhammad Muddassir Ali
- Institute of Biochemistry and Biotechnology, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan.
| | - İbrahim Hakkı Ciğerci
- Molecular Biology and Genetics Department, Faculty of Science and Literature, Afyon Kocatepe University, 03200, Afyon, Turkey
| | - Erman Salih İstifli
- Department of Biology, Faculty of Science and Literature, Cukurova University, TR-01330, Adana, Turkey
| | - Cengiz Sarıkurkcu
- Department of Analytical Chemistry, Faculty of Pharmacy, Afyonkarahisar Health Sciences University, TR-03100, Afyonkarahisar, Turkey
| |
Collapse
|
30
|
Amaç E, Liman R. Cytotoxic and genotoxic effects of clopyralid herbicide on Allium cepa roots. Environ Sci Pollut Res Int 2021; 28:48450-48458. [PMID: 33913105 DOI: 10.1007/s11356-021-13994-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 04/13/2021] [Indexed: 06/12/2023]
Abstract
Clopyralid is one of the synthetic pyridine-carboxylate auxin herbicides and used to control perennial and annual broadleaf weeds in wheat, sugar beets, canola, etc. In this study, dose-dependent cytotoxicity and genotoxicity of clopyralid at different concentrations (25, 50, and 100 μg/mL) have been evaluated on the Allium cepa roots. The evaluation has been performed at macroscopic (root growth) and microscopic levels [mitotic index (MI), chromosome aberrations (CAs) in ana-telophase cells, and DNA damage] using root growth inhibition, Allium ana-telophase, and comet tests. The percentage of root growth inhibition and concentration of reducing root growth by 50% (EC50) of clopyralid were determined compared with the negative control by using various concentrations of clopyralid (6.25-1000 μg/L). The 96 h EC50 of clopyralid was recorded as 50 μg/L. The gradual decrease in root growth and the MI reveals the cytotoxic effects of clopyralid. All the tested concentrations of clopyralid induced total CAs (polyploidy, stickiness, anaphase bridges, chromosome laggards, and disturbed ana-telophase) and DNA damage dose and time dependently. These results confirm the cytotoxic and genotoxic effects of clopyralid on non-target organism.
Collapse
Affiliation(s)
- Eslem Amaç
- Molecular Biology and Genetics Department, Faculty of Arts and Sciences, Uşak University, 1 Eylül Campus, 64300, Uşak, Turkey
| | - Recep Liman
- Molecular Biology and Genetics Department, Faculty of Arts and Sciences, Uşak University, 1 Eylül Campus, 64300, Uşak, Turkey.
| |
Collapse
|
31
|
Masood F, Pandey R, Singh HP, Gupta AS, Kaur S, Batish DR, Kohli RK. Cytotoxic and genotoxic assessment of agricultural soils from an industrial region. Environ Monit Assess 2021; 193:526. [PMID: 34322773 DOI: 10.1007/s10661-021-09289-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 07/12/2021] [Indexed: 06/13/2023]
Abstract
Industrial effluents contain hazardous substances that can be a serious threat to the agriculture and human health. In the present study, the cytotoxic and genotoxic impacts of agricultural soil from the industrial area of Dera Bassi (Punjab, India) have been evaluated. Assays such as defects in DNA repair in K-12 mutants of Escherichia coli and chromosomal aberrations in Allium cepa were used to estimate the acute toxicity and chromosomal mutagenesis, respectively. Atomic absorption spectrometry and GC-MS analysis revealed contamination of the soil with high concentrations of heavy metals and organic compounds, respectively. Dichloromethane extract of site I soil sample caused maximum damage to 40 μL mL-1 DNA repair defective mutants and showed 38 and 49% survival in lexA and recA mutants, respectively, which was least among all the sites. In A. cepa test, an inverse relationship between soil extract concentration and the mitotic index was observed. Exposure of growing roots of A. cepa to soil extracts induced chromosomal abnormalities and alterations in mitotic phases in root tip cells. The study concludes that agricultural sites near the industrial area were contaminated with genotoxic and mutagenic compounds. Hence, adequate measures should be taken to reduce the toxicity of industrial effluents discharged onto the agricultural fields.
Collapse
Affiliation(s)
- Farhana Masood
- Department of Environment Studies, Panjab University, Chandigarh, 160014, India
| | - Ranjan Pandey
- Department of Environment Studies, Panjab University, Chandigarh, 160014, India
| | - Harminder Pal Singh
- Department of Environment Studies, Panjab University, Chandigarh, 160014, India.
| | - Aditya Sen Gupta
- Department of Environment Studies, Panjab University, Chandigarh, 160014, India
| | - Shalinder Kaur
- Department of Botany, Panjab University, Chandigarh, 160014, India.
| | | | | |
Collapse
|
32
|
Karls S, Gold R, Kravets S, Wang Y, Cheng S, Perez K, Chan J, Jacene H. Correlation of 68Ga-DOTATATE uptake on PET/CT with pathologic features of cellular proliferation in neuroendocrine neoplasms. Ann Nucl Med 2021; 35:1066-1077. [PMID: 34146243 DOI: 10.1007/s12149-021-01642-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 06/08/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVE 68Ga-DOTATATE positron emission tomography/computed tomography (PET/CT) is a useful tool for diagnosing and staging neuroendocrine neoplasms (NEN). Unlike other PET tracers like FDG, the meaningfulness and use of standardized uptake values (SUVs) of 68Ga-DOTATATE is not well-established. This study aimed to determine if a correlation exists between intensity of 68Ga-DOTATATE uptake and markers of cellular proliferation. METHODS This retrospective study included 79 patients with positive 68Ga-DOTATATE PET/CT and Ki-67 and/or mitotic index (MI) available on pathology report. SUVmax of the most intense lesion and the most intense organ-matched lesion were determined. Demographics and pathology results for Ki-67 and MI were collected from the electronic medical record. Correlations and trends for correlations of SUVmax to Ki-67 and MI were performed using Kruskal-Wallis and Cuzick trend tests. RESULTS A trend for an association between SUVmax and Ki-67 grade was found; median SUVmax of Ki-67 < 3%, 3-20%, and > 20% was 35.2, 31.8, and 12.8 (p = 0.077), respectively. There was also a trend between SUVmax and Ki-67 categories in organ-matched lesions (p = 0.08). The median organ-matched SUVmax of MI < 2, 2-20, and > 20 lesions was 34.2, 18, and 21.7, respectively, (Cuzick trend test p = 0.066). The median SUVmax for small bowel, pancreatic, and other primary locations was 27.6, 46.9, and 9.3 (p < 0.01), respectively. CONCLUSIONS The association between 68Ga-DOTATATE SUVmax, histologic grade, and primary site of NEN demonstrates its potential use for prognostication, or potentially as a surrogate for histologic grading when biopsy is not possible.
Collapse
Affiliation(s)
- Shawn Karls
- Department of Imaging, Dana-Farber Cancer Institute, 450 Brookline Avenue, DL203, Boston, MA, 02215, USA.,Department of Radiology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Richard Gold
- St. Georges University, School of Medicine, St. George, Grenada
| | - Sasha Kravets
- Division of Biostatistics, Department of Data Science, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Yating Wang
- Division of Biostatistics, Department of Data Science, Dana-Farber Cancer Institute, Boston, MA, USA
| | - SuChun Cheng
- Division of Biostatistics, Department of Data Science, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Kimberly Perez
- Program in Neuroendocrine and Carcinoid Tumors, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Jennifer Chan
- Program in Neuroendocrine and Carcinoid Tumors, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Heather Jacene
- Department of Imaging, Dana-Farber Cancer Institute, 450 Brookline Avenue, DL203, Boston, MA, 02215, USA. .,Department of Radiology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
| |
Collapse
|
33
|
Medha I, Chandra S, Vanapalli KR, Samal B, Bhattacharya J, Das BK. (3-Aminopropyl)triethoxysilane and iron rice straw biochar composites for the sorption of Cr (VI) and Zn (II) using the extract of heavy metals contaminated soil. Sci Total Environ 2021; 771:144764. [PMID: 33736157 DOI: 10.1016/j.scitotenv.2020.144764] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 12/19/2020] [Accepted: 12/19/2020] [Indexed: 05/04/2023]
Abstract
Heavy metals like Cr (VI), when released into the environment, pose a serious threat to animal and human health. In this study, iron and (3-Aminopropyl)triethoxysilane (APTES) biochar composites were prepared from the biochar, which was produced through the pyrolysis of rice straw at 400 and 600 °C, using the chemical processes with an aim that the doping of pristine biochar structure with the Fe and NH2 radicals would enhance the removal of Cr (VI) and Zn (II) adsorption in both aqueous solution and soil. Both biochar composites were mixed at a rate of 3% (w/w) with the mine soil for the soil incubation test, and after completion of the test, a soil fertility index (SFI) was calculated. Results showed that both iron and APTES biochar composites followed the Langmuir-Freundlich isotherm showing the maximum removal capacity of 100.59 mg/g for Cr (VI) by APTES/SiBC 600 and maximum adsorption capacity of 83.92 mg/g for Zn2+ by Fe/BC 400. The SFI of the mine-soil amended with both Fe and APTES biochar composites were 16.67 and 13.04%, respectively higher than the controlled study. The mitotic index of the A. cepa cells that grew up in the soil amended with Fe/BC and APTES/SiBC were 40.47 and 44.45%, respectively, higher than the controlled study. The results indicated that the incorporation of the Fe and APTES biochar composites in the soil effectively reduced the metal toxicity and improved the soil physicochemical properties. This study opens up the prospects of using biochar composites in contaminated soil and water treatments.
Collapse
Affiliation(s)
- Isha Medha
- Department of Mining Engineering, Indian Institute of Technology Kharagpur, West Bengal 721302, India
| | - Subhash Chandra
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, West Bengal 721302, India
| | - Kumar Raja Vanapalli
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, West Bengal 721302, India
| | - Biswajit Samal
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, West Bengal 721302, India
| | - Jayanta Bhattacharya
- Department of Mining Engineering, Indian Institute of Technology Kharagpur, West Bengal 721302, India; School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, West Bengal 721302, India; Zelence Industries Private Limited, India.
| | | |
Collapse
|
34
|
Pandey H, Kumar S. Butylated hydroxytoluene and Butylated hydroxyanisole induced cyto-genotoxicity in root cells of Allium cepa L. Heliyon 2021; 7:e07055. [PMID: 34041400 PMCID: PMC8141894 DOI: 10.1016/j.heliyon.2021.e07055] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 02/16/2021] [Accepted: 05/08/2021] [Indexed: 11/19/2022] Open
Abstract
This study aims to evaluate the effects of preservatives on somatic cells of Allium cepa. For the evaluation of cytotoxicity, root meristems of A. cepa were treated with 1000, 1500, 2000, 2500 ppm concentration for 5, 10, 15 days. The root tips showed concentration dependent growth retardation in all the used concentrations, as well as root texture, also has been changed mitotic index, total protein content decreased and frequency of chromosomal aberrations increased after 5 days treatment. Additionally, the RAPD-PCR method was applied to evaluate genotoxicity and found the highest concentration (2500 ppm) was comparatively more distant to the control group. Results concluded that BHT and BHA showed positive results and cytotoxic.
Collapse
|
35
|
Seven G, Arici DS, Senturk H. Correlation of Endoscopic Ultrasonography Features with the Mitotic Index in 2- to 5-cm Gastric Gastrointestinal Stromal Tumors. Dig Dis 2021; 40:14-22. [PMID: 33794522 DOI: 10.1159/000516250] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 03/26/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND Predicting the malignancy potential of gastrointestinal stromal tumor (GIST) before resection could improve patient management strategies as gastric GISTs with a low malignancy potential can be safely treated endoscopically, but surgical resection is required for those tumors with a high malignancy potential. This study aimed to evaluate endoscopic ultrasound (EUS) features of 2- to 5-cm gastric GISTs that might be used to predict their mitotic index using surgical specimens as the gold standard. PATIENTS AND METHODS Forty-nine patients (30 females and 19 males; mean age 55.1 ± 12.7 years) who underwent EUS examinations, followed by surgical resections of 2- to 5-cm gastric GISTs, were retrospectively reviewed. RESULTS The mean tumor size was 3.44 ± 0.97 (range 2.1-5.0) cm. A univariate analysis revealed no significant differences in age, sex, and tumor location in the low mitotic index and high mitotic index groups (all p > 0.05). In terms of EUS features, there were no significant differences in the mitotic indexes with respect to the shape, surface lobulation, border regularity, echogenicity, homogeneity, growth patterns, presence of mucosal ulceration, hyperechogenic foci, anechoic spaces, and hypoechoic halos (all p > 0.05). However, the tumor size was larger in the high mitotic index group than that in the low mitotic index group (3.97 ± 1.05 vs. 3.27 ± 0.9 cm, p = 0.03). CONCLUSION Conventional EUS features are not reliable for predicting the mitotic index of 2- to 5-cm gastric GISTs. Further modalities for predicting the mitotic index are needed to prevent unnecessary surgical resections in patients with a low risk of malignancy.
Collapse
Affiliation(s)
- Gulseren Seven
- Division of Gastroenterology, Bezmialem Vakif University, Istanbul, Turkey
| | - Dilek Sema Arici
- Division of Pathology, Bezmialem Vakif University, Istanbul, Turkey
| | - Hakan Senturk
- Division of Gastroenterology, Bezmialem Vakif University, Istanbul, Turkey
| |
Collapse
|
36
|
Han C, Shao H, Zhou S, Mei Y, Cheng Z, Huang L, Lv G. Chemical composition and phytotoxicity of essential oil from invasive plant, Ambrosia artemisiifolia L. Ecotoxicol Environ Saf 2021; 211:111879. [PMID: 33465625 DOI: 10.1016/j.ecoenv.2020.111879] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 12/23/2020] [Accepted: 12/26/2020] [Indexed: 05/23/2023]
Abstract
Essential oils have been evaluated as appropriate phytotoxins with mechanisms of action that are different from those of synthetic herbicides applied in weed management activities, but little is known about the effect of Ambrosia artemisiifolia essential oil (EO) on weeds. Here, the chemical composition of A. artemisiifolia EO was analyzed using a Gas Chromatography-Mass Spectrometry system. and the phytotoxic activities of the EO against monocot (Poa annua, Setaria viridis) and dicot (Amaranthus retroflexus, Medicago sativa) species are evaluated under laboratory and green-house conditions for the first time. The EO was rich in sesquiterpenes (62.51%), with germacrene D (32.92%), β-pinene (15.14%), limonene (9.90%), and caryophyllene (4.49%) being the major compounds based on Gas Chromatography-Mass Spectrometry analysis results. A. artemisiifolia EO inhibited seed germination and seedling development significantly in the tested species even at low concentrations (0.25 mg mL-1). In addition, bioassay results for the activities of superoxide dismutase (SOD) and peroxidase (POD) increased and then decreased with an increase in EO concentration. Unlike the enzymatic activity, root cell viability declined significantly in the tested weeds in all EO treatments. Besides, a foliar spray experiment resulted in visible injury in leaves and a decrease in chlorophyll content and eventually led to wilting of all tested weeds. The EO (0.25-5.00 mg mL-1) altered Allium cepa root tip cells with a decline in mitotic index and an increase in chromosomal aberrations after 24 h treatment. The cytotoxic evaluation confirmed the mitotic inhibitory effect of EO, although the intensity varied under different concentrations. According to the results, A. artemisiifolia EO has the potential applications as a natural herbicide owing to its phytotoxic activity; which also helps to explain their potential involvement in allelopathic interaction of volatile compounds present in the EO that facilitate the invasion success of the exotic species.
Collapse
Affiliation(s)
- Caixia Han
- Xinjiang University, Resource and Environment Science College, Urumqi 830046, China; State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
| | - Hua Shao
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; Research Center for Ecology and Environment of Central Asia, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
| | - Shixing Zhou
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
| | - Yu Mei
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
| | - Zhenrui Cheng
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
| | - Ling Huang
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
| | - Guanghui Lv
- Xinjiang University, Resource and Environment Science College, Urumqi 830046, China.
| |
Collapse
|
37
|
Sivaram AK, Logeshwaran P, Surapaneni A, Shah K, Crosbie N, Rogers Z, Lee E, Venkatraman K, Kannan K, Naidu R, Megharaj M. Evaluation of Cyto-genotoxicity of Perfluorooctane Sulfonate (PFOS) to Allium cepa. Environ Toxicol Chem 2021; 40:792-798. [PMID: 33074584 DOI: 10.1002/etc.4905] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 09/08/2020] [Accepted: 10/13/2020] [Indexed: 06/11/2023]
Abstract
Per- and polyfluoroalkyl substances (PFAS) have emerged as contaminants of global concern. Among several PFAS, perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) are persistent and bioaccumulative compounds. We investigated the cyto-genotoxic potential of PFOS to Allium cepa root meristem cells. The A. cepa root tips were exposed to 6 different concentrations (1-100 mg L-1 ) of PFOS for 48 h. Reduction in mitotic index and chromosomal aberrations was measured as genotoxic endpoints in meristematic root cells. Exposure to PFOS significantly affected cell division by reducing the miotic index at higher concentrations (>10 mg L-1 ). The median effect concentration of PFOS to elicit cytotoxicity based on the mitotic index was 43.2 mg L-1 . Exposure to PFOS significantly increased chromosomal aberrations at concentrations >25 mg L-1 . The common aberrations were micronuclei, vagrant cells, and multipolar anaphase. The alkaline comet assay revealed a genotoxic potential of PFOS with increased tail DNA percentage at concentrations >25 mg L-1 . To our knowledge, this is the first study to report the cyto-genotoxic potential of PFOS in higher plants. Environ Toxicol Chem 2021;40:792-798. © 2020 SETAC.
Collapse
Affiliation(s)
- Anithadevi Kenday Sivaram
- Global Centre for Environmental Remediation, The University of Newcastle, Callaghan New South Wales, Australia
| | - Panneerselvan Logeshwaran
- Global Centre for Environmental Remediation, The University of Newcastle, Callaghan New South Wales, Australia
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environments, The University of Newcastle, Callaghan, New South Wales, Australia
| | | | - Kalpit Shah
- Chemical & Environmental Engineering Department, School of Engineering, RMIT University, Melbourne, Victoria, Australia
| | | | - Zoe Rogers
- Hunter Water, Newcastle, New South Wales, Australia
| | - Elliot Lee
- Water Corporation, Leederville, Western Australia, Australia
| | | | - Kurunthachalam Kannan
- Department of Pediatrics, New York University School of Medicine, New York, New York, USA
| | - Ravi Naidu
- Global Centre for Environmental Remediation, The University of Newcastle, Callaghan New South Wales, Australia
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environments, The University of Newcastle, Callaghan, New South Wales, Australia
| | - Mallavarapu Megharaj
- Global Centre for Environmental Remediation, The University of Newcastle, Callaghan New South Wales, Australia
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environments, The University of Newcastle, Callaghan, New South Wales, Australia
| |
Collapse
|
38
|
Khan A, Kumar V, Srivastava A, Saxena G, Verma PC. Biomarker-based evaluation of cytogenotoxic potential of glyphosate in Vigna mungo (L.) Hepper genotypes. Environ Monit Assess 2021; 193:73. [PMID: 33469782 DOI: 10.1007/s10661-021-08865-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 01/11/2021] [Indexed: 06/12/2023]
Abstract
Herbicides have proven to be a boon for agricultural fields. Their inherent property to kill weeds and unwanted vegetation makes them an essential biological tool for farmers and agricultural systems. Besides being capable of destroying weeds, they also exhibit certain effects on non-target crop plants. In the present study, a laboratory experiment was performed to assess the effect of glyphosate on Vigna mungo root meristem cells. Seeds of five different genotypes of V. mungo were treated with a series of concentrations of glyphosate ranging from 1 to 10 mM, and their effects on mitotic cell division were studied. Healthy and uniform-sized seeds were selected and were allowed to grow in Petri plates for 3 days, and all the doses were maintained in triplicates. Roots were fixed at day 3 after treatment (DAT) for cytological microscopic slide preparation. The results obtained indicate the dose-dependent reduction in the mitotic index in all the genotypes and an increase in the percentage of chromosomal aberrations (CAs) and relative abnormality rate (RAR). Most commonly observed chromosome aberrations at lower doses (< 6 mM) were fragments, stickiness, and disoriented metaphase, while at higher doses (6 to 10 mM) bridges, laggards, spindle disorientation, and clumping were obvious. The increase in the percentage of CAs and RAR indicates the inhibitory effect of glyphosate on cell cycle progression at various stages in root tip cells. The present study is a fine example of a biomarker-based genotoxic assessment of mitotic damage caused by glyphosate.
Collapse
Affiliation(s)
- Adiba Khan
- In Vitro Culture and Plant Genetics Unit, Department of Botany, Faculty of Science, University of Lucknow, Lucknow, UP, 226007, India
| | - Vaibhav Kumar
- In Vitro Culture and Plant Genetics Unit, Department of Botany, Faculty of Science, University of Lucknow, Lucknow, UP, 226007, India
| | - Alka Srivastava
- In Vitro Culture and Plant Genetics Unit, Department of Botany, Faculty of Science, University of Lucknow, Lucknow, UP, 226007, India
| | - Gauri Saxena
- In Vitro Culture and Plant Genetics Unit, Department of Botany, Faculty of Science, University of Lucknow, Lucknow, UP, 226007, India.
| | - Praveen C Verma
- Department of Molecular Biology and Biotechnology, CSIR-National Botanical Research Institute, Lucknow, UP, 226001, India
| |
Collapse
|
39
|
Liman R, Başbuğ B, Ali MM, Acikbas Y, Ciğerci İH. Cytotoxic and genotoxic assessment of tungsten oxide nanoparticles in Allium cepa cells by Allium ana-telophase and comet assays. J Appl Genet 2021; 62:85-92. [PMID: 33409932 DOI: 10.1007/s13353-020-00608-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 12/21/2020] [Accepted: 12/28/2020] [Indexed: 12/24/2022]
Abstract
Tungsten oxide nanoparticles or nanopowder (WO3NPs) is commonly used in various industries and also in biomedical applications such as additives, pigments, and biomedical sensors. Non-judicious excessive use of these nanoparticles (NPs) could be a serious human health concern. Therefore, the current study aimed to explore the cytotoxic and genotoxic assessment of WO3NPs through Allium cepa anaphase-telophase and comet assays. Nanoparticles were characterized through the scanning and transmission electron microscopy (TEM), zetasizer, and energy-dispersive X-ray spectroscopy. The mean size and the average diameter of WO3NPs were determined as 21.57 ± 2.48 nm and 349.42 ± 80.65 nm using TEM and a Zetasizer measurement system, respectively. Five concentrations (12.5 mg/L, 25 mg/L, 50 mg/L, 75 mg/L, and 100 mg/L) of WO3NPs were employed on the Allium cepa (A. cepa) roots for 4 h. Significant (p ≤ 0.05) decrease in mitotic index (MI) was shown by WO3NPs at all concentrations. The increase of chromosomal aberrations (CAs) was also observed in a concentration-dependent manner due to the WO3NPs exposure. There was a significant increase (p ≤ 0.05) in DNA damage at all concentrations of WO3NPs on the A. cepa cells. It was concluded that WO3NPs had cytotoxic and genotoxic effects on A. cepa meristematic cells. Moreover, further cytogenetic effects of WO3NPs should be investigated at the molecular level to assess its safety margin.
Collapse
Affiliation(s)
- Recep Liman
- Faculty of Arts and Sciences, Molecular Biology and Genetics Department, Usak University, 64300, Uşak, Turkey
| | - Bermal Başbuğ
- Faculty of Arts and Sciences, Molecular Biology and Genetics Department, Usak University, 64300, Uşak, Turkey
| | - Muhammad Muddassir Ali
- Institute of Biochemistry and Biotechnology, University of Veterinary and Animal Sciences, Syed Abdul Qadir Jilani Road (Outfall Road), 54000, Lahore, Pakistan.
| | - Yaser Acikbas
- Faculty of Engineering, Materials Science and Nanotechnology Engineering Department, Usak University, 64200, Usak, Turkey
| | - İbrahim Hakkı Ciğerci
- Faculty of Arts and Sciences, Molecular Biology and Genetics Department, Afyon Kocatepe University, 03200, Afyonkarahisar, Turkey
| |
Collapse
|
40
|
Aguilar-Romero E, Chávez-Hernández JD, Zepeda-Najar C, Salcedo-Hernández RA, Lino-Silva LS. Prognostic variables in patients with thick melanomas. Analysis of 362 cases. GAC MED MEX 2021; 157:207-211. [PMID: 34270542 DOI: 10.24875/gmm.m21000543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 07/16/2020] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Melanoma epidemiological and prognostic studies are based on Caucasian populations, in whom the predominant subtype is superficially-spreading melanoma and in whom thin melanomas (Breslow < 3 mm) predominate. Mexican patients show a predominance of thick melanomas (Breslow ≥ 3 mm), and the acral subtype is the most common. There are no publications on prognostic factors in thick melanomas. We hypothesize that we will identify factors that determine the prognosis in this group of patients. OBJECTIVE To identify clinical-pathological factors associated with the prognosis of patients with thick melanomas in the Mexican population. MATERIAL AND METHODS Data on melanomas with Breslow > 3 mm were collected from 2010 to 2015. The prognostic influence of various clinical-pathological factors was analyzed. RESULTS The most common subtypes were acral melanoma in 271 patients (74.9 %) and nodular melanoma in 49 (13.5 %). Median Breslow thickness was 7 mm. 56.6 % of the patients had lymph node metastases (clinical stage [CS] III), 269 (74.3 %) had ulceration, and surgical margins were positive in 15 (4.1 %). Elevated neutrophil: lymphocyte ratio (≥ 2) was found in 188 (51.9 %). The variables associated with lower overall survival were CS (p < 0.001), Breslow thickness (p = 0.044), ulceration (p = 0.004), mitotic activity (p < 0.001), < 2-cm margin (p < 0.001) and an increased neutrophil: lymphocyte ratio (p = 0.037). In the multivariate analysis, the factors associated with overall survival were CS, mitotic activity, and surgical margin. CONCLUSIONS In patients with thick melanomas, overall survival is influenced by mitotic activity, a positive margin, and clinical stage.
Collapse
Affiliation(s)
- Estefanía Aguilar-Romero
- Department of Pathological Anatomy, Instituto Nacional de Cancerología, Mexico City
- AFINES Program, Universidad Nacional Autónoma de México, Mexico City
| | | | - César Zepeda-Najar
- Department of Surgical Oncology, Hospital Ángeles Tijuana, Tijuana, Baja California Norte
| | | | | |
Collapse
|
41
|
Gauchotte G, Peyre M, Pouget C, Cazals-Hatem D, Polivka M, Rech F, Varlet P, Loiseau H, Lacomme S, Mokhtari K, Kalamarides M, Bielle F. Prognostic Value of Histopathological Features and Loss of H3K27me3 Immunolabeling in Anaplastic Meningioma: A Multicenter Retrospective Study. J Neuropathol Exp Neurol 2020; 79:754-762. [PMID: 32447376 DOI: 10.1093/jnen/nlaa038] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 04/15/2020] [Indexed: 12/26/2022] Open
Abstract
The diagnosis of anaplastic meningioma (AM) (WHO grade III) is based on the presence of a high mitotic index (MI) and/or overt anaplasia. Only few data exist about the reproducibility and prognostic value of overt anaplasia. Additionally, the prognostic value of H3K27me3 loss in AM has not yet been demonstrated. Our objectives were to evaluate the reproducibility and prognostic value of WHO criteria and H3K27me3 loss in a multicenter series of 66 AM. Interobserver reproducibility was good for the determination of WHO grade (Kappa = 0.671) and MI (intraclass correlation coefficient [ICC] = 0.649), and fair for assessment of overt anaplasia (Kappa = 0.366). Patients with meningiomas showing high MI had significantly shorter overall survival (OS) than patients with meningiomas showing overt anaplasia without high MI (p = 0.009). OS was significantly lower in case of overt anaplasia with low MI (<20/1.6 mm2) than in atypical meningiomas (p = 0.008). H3K27me3 loss was present in 10/47 (21%) of AM and independently associated with shorter OS (p = 0.036; Cox multivariate analysis), with a good reproducibility (Kappa = 0.643). In conclusion, the presence of overt anaplasia could give additional prognostic information in tumors lacking high MI. Finally, loss of H3K27me3 is an easy-to-use and reproducible marker of poorer prognosis.
Collapse
Affiliation(s)
- Guillaume Gauchotte
- INSERM U1256, Faculty of Medicine, Université de Lorraine, Vandoeuvre-lès-Nancy.,Department of Pathology, CHRU, Nancy, France.,Centre de Ressources Biologiques, BB-0033-00035 (GG, SL), CHRU, Nancy, France
| | - Matthieu Peyre
- Sorbonne Universités, INSERM, CNRS, UMR S 1127, Institut du Cerveau et de la Moelle Épinière, Paris, France.,Department of Neurosurgery, Groupe Hospitalier Pitié Salpêtrière, AP-HP (MP, MK), Paris, France.,Department of Pathology, Hôpital Lariboisière, AP-HP, Paris, France
| | - Celso Pouget
- INSERM U1256, Faculty of Medicine, Université de Lorraine, Vandoeuvre-lès-Nancy.,Department of Pathology, CHRU, Nancy, France
| | | | | | - Fabien Rech
- Department of Neurosurgery, CHRU, Nancy, France.,Institut des Neurosciences, INSERM U1051, Montpellier, France
| | - Pascale Varlet
- Department of Neuropathology, Centre Hospitalier Saint-Anne, Paris, France
| | - Hugues Loiseau
- Department of Neurosurgery, CEREPEG, Hôpital Pellegrin Tripode, Bordeaux, France.,EA 7435 - IMOTION University of Bordeaux (HL), Bordeaux
| | - Stéphanie Lacomme
- Centre de Ressources Biologiques, BB-0033-00035 (GG, SL), CHRU, Nancy, France
| | - Karima Mokhtari
- Sorbonne Universités, INSERM, CNRS, UMR S 1127, Institut du Cerveau et de la Moelle Épinière, Paris, France.,AP-HP, Department of Neuropathology, Hôpital de la Pitié Salpêtrière, Paris, France
| | - Michel Kalamarides
- Sorbonne Universités, INSERM, CNRS, UMR S 1127, Institut du Cerveau et de la Moelle Épinière, Paris, France.,Department of Neurosurgery, Groupe Hospitalier Pitié Salpêtrière, AP-HP (MP, MK), Paris, France
| | - Franck Bielle
- Sorbonne Universités, INSERM, CNRS, UMR S 1127, Institut du Cerveau et de la Moelle Épinière, Paris, France.,AP-HP, Department of Neuropathology, Hôpital de la Pitié Salpêtrière, Paris, France.,SiRIC CURAMUS (Cancer United Research Associating Medicine, University & Society), Site de Recherche Intégrée sur le Cancer IUC, APHP.6, Sorbonne Université (FB), Paris, France
| |
Collapse
|
42
|
Alabi OA, Apata SA, Adeoluwa YM, Sorungbe AA. Effect of the duration of use of aluminum cookware on its metal leachability and cytogenotoxicity in Allium cepa assay. Protoplasma 2020; 257:1607-1613. [PMID: 32671619 DOI: 10.1007/s00709-020-01536-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Accepted: 07/13/2020] [Indexed: 06/11/2023]
Abstract
Aluminum cookware are widely used in many parts of the world. Data is increasing on the leaching of toxic metals from aluminum cookware into food and drink. In the present study, cytogenotoxicity of water boiled in three different aluminum pots (new, 3-year-old, and 6-year-old) in onion root tip's dividing cells was evaluated using the Allium cepa assay. The concentrations of Pb, As, Cd, Cu, Ni, and Al in the samples were also analyzed. Onion bulbs were grown in the boiled water samples, while tap water served as the control. Cytological and genetic analyses were carried out after 48 h, while analysis of inhibition of root length was carried out after 72 h. The results showed a significant (p < 0.05) cell proliferation and root growth inhibition compared with the control, which is dependent on the duration of use of the aluminum pots. The boiled water samples also caused modification of the root morphology as well as chromosomal aberrations which include sticky chromosomes, anaphase bridge, and disturbed spindle. The highest cytogenotoxicity was observed in the 6-year-old aluminum pot and the least in the new aluminum pot. Pb, As, Cd, Cu, Ni, and Al analyzed in the samples, with the highest concentrations in the 6-year-old aluminum pot, were believed to be responsible for the cytogenotoxicity observed in the A. cepa assay. The data of this study are indications that the aluminum pot-boiled water contains substances with the potential to be cytotoxic and cause mutations in somatic cells of A. cepa.
Collapse
Affiliation(s)
- Okunola A Alabi
- Department of Biology, Federal University of Technology, Akure, Ondo State, Nigeria.
| | - Sulaimon A Apata
- Department of Biology, Federal University of Technology, Akure, Ondo State, Nigeria
| | - Yetunde M Adeoluwa
- Department of Biology, Federal University of Technology, Akure, Ondo State, Nigeria
| | - Adewale A Sorungbe
- Department of Biology, Federal University of Technology, Akure, Ondo State, Nigeria
| |
Collapse
|
43
|
Yang J, Chen Z, Liu W, Wang X, Ma S, Jin F, Wang X. Development of a Malignancy Potential Binary Prediction Model Based on Deep Learning for the Mitotic Count of Local Primary Gastrointestinal Stromal Tumors. Korean J Radiol 2020; 22:344-353. [PMID: 33169545 PMCID: PMC7909867 DOI: 10.3348/kjr.2019.0851] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 05/29/2020] [Accepted: 06/15/2020] [Indexed: 11/24/2022] Open
Abstract
Objective The mitotic count of gastrointestinal stromal tumors (GIST) is closely associated with
the risk of planting and metastasis. The purpose of this study was to develop a
predictive model for the mitotic index of local primary GIST, based on deep learning
algorithm. Materials and Methods Abdominal contrast-enhanced CT images of 148 pathologically confirmed GIST cases were
retrospectively collected for the development of a deep learning classification
algorithm. The areas of GIST masses on the CT images were retrospectively labelled by an
experienced radiologist. The postoperative pathological mitotic count was considered as
the gold standard (high mitotic count, > 5/50 high-power fields [HPFs]; low
mitotic count, ≤ 5/50 HPFs). A binary classification model was trained on the
basis of the VGG16 convolutional neural network, using the CT images with the training
set (n = 108), validation set (n = 20), and the test set (n = 20). The sensitivity,
specificity, positive predictive value (PPV), and negative predictive value (NPV) were
calculated at both, the image level and the patient level. The receiver operating
characteristic curves were generated on the basis of the model prediction results and
the area under curves (AUCs) were calculated. The risk categories of the tumors were
predicted according to the Armed Forces Institute of Pathology criteria. Results At the image level, the classification prediction results of the mitotic counts in the
test cohort were as follows: sensitivity 85.7% (95% confidence interval [CI]:
0.834–0.877), specificity 67.5% (95% CI: 0.636–0.712), PPV 82.1% (95% CI:
0.797–0.843), NPV 73.0% (95% CI: 0.691–0.766), and AUC 0.771 (95% CI:
0.750–0.791). At the patient level, the classification prediction results in the
test cohort were as follows: sensitivity 90.0% (95% CI: 0.541–0.995), specificity
70.0% (95% CI: 0.354–0.919), PPV 75.0% (95% CI: 0.428–0.933), NPV 87.5%
(95% CI: 0.467–0.993), and AUC 0.800 (95% CI: 0.563–0.943). Conclusion We developed and preliminarily verified the GIST mitotic count binary prediction model,
based on the VGG convolutional neural network. The model displayed a good predictive
performance.
Collapse
Affiliation(s)
- Jiejin Yang
- Department of Radiology, Peking University First Hospital, Peking University, Beijing, China
| | - Zeyang Chen
- Department of General Surgery, Peking University First Hospital, Peking University, Beijing, China
| | - Weipeng Liu
- Beijing Smart Tree Medical Technology Co. Ltd., Beijing, China
| | - Xiangpeng Wang
- Beijing Smart Tree Medical Technology Co. Ltd., Beijing, China
| | - Shuai Ma
- Department of Radiology, Peking University First Hospital, Peking University, Beijing, China
| | - Feifei Jin
- Department of Biostatistics, Peking University First Hospital, Beijing, China
| | - Xiaoying Wang
- Department of Radiology, Peking University First Hospital, Peking University, Beijing, China.
| |
Collapse
|
44
|
Mazzei MA, Cioffi Squitieri N, Vindigni C, Guerrini S, Gentili F, Sadotti G, Mercuri P, Righi L, Lucii G, Mazzei FG, Marrelli D, Volterrani L. Gastrointestinal stromal tumors (GIST): a proposal of a "CT-based predictive model of Miettinen index" in predicting the risk of malignancy. Abdom Radiol (NY) 2020; 45:2989-96. [PMID: 31506758 DOI: 10.1007/s00261-019-02209-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
PURPOSE To identify the predictors of malignancy on CT for the evaluation of gastrointestinal stromal tumors (GIST) by correlating CT findings with the mitotic index in order to propose a "CT-based predictive model of Miettinen index." METHODS One radiologist and one resident in radiology with 14- and 4-year experience in oncological field reviewed the CT findings of 42 patients by consensus, with respect to lesion site, size, contour, tumor growth pattern, enhancing pattern, degree of enhancement of tumor, percentage of tumor necrosis, mesenteric fat infiltration, ulceration, calcification, regional lymphadenopathy, direct invasion to adjacent organs, and distant metastasis. All parameters were correlated with the mitotic index evaluated at histopathological analysis following surgery. Normality of variables was evaluated using Shapiro-Wilk test. Pearson's correlation test was used to assess the interaction between variables. The diagnostic accuracy percentage of tumor necrosis was measured by receiver operating characteristic (ROC) analysis for detecting whether the number of mitosis per 50 high-power fields was > 5. RESULTS A significant statistical correlation was found between percentage of tumor necrosis and the mitotic index (p < 0.005), dimension, and location of the tumor. CONCLUSION CT could be an accurate technique in the prediction of malignancy of GIST in a CT risk assessment system, based on the location of the tumor, its size, and the percentage of tumor necrosis.
Collapse
|
45
|
Salazar Mercado SA, Quintero Caleño JD. Determination of malathion's toxic effect on Lens culinaris Medik cell cycle. Heliyon 2020; 6:e04846. [PMID: 32954032 DOI: 10.1016/j.heliyon.2020.e04846] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 08/27/2020] [Accepted: 09/01/2020] [Indexed: 12/13/2022] Open
Abstract
The present study aimed to determine the toxic effect of malathion pesticide on root growth, cell division and the chromosomal abnormalities frequency using the L. culinaris test. Initially, the lentil seeds were subjected to different doses of malathion (0.0 0.5, 1, 2.5, 5, 10, 15, 20, 25 and 30 mgL-1) and during 24, 48, and 72 h, the root length was measured. Subsequently, at 72h, the mitotic index, mitotic inhibition, and cellular abnormalities were calculated for all treatments. According to the obtained results, it was visualized that the root growth was inversely proportional to the concentration of malathion at all times of exposure. After 72h of exposure, the lowest values of the mitotic index and inhibition were presented at malathion concentrations 20, 25 and 30 mgL-1. Additionally, micronuclei cell abnormalities, metaphase sticky chromosomes, split chromosomes, nuclear lesions, irregular anaphase, anaphase bridges, binucleated cells, absence of nucleus and telophase bridge were observed. Finally, Malathion induced mitodepressive and cytotoxic effects in the meristematic cells of the L. culinaris root tip. A high frequency of abnormality was found in the micronuclei, which represented an indicator of a high degree of toxicity at the cellular level.
Collapse
|
46
|
Mahmoud GAE, Soltan HAH, Abdel-Aleem WM, Osman SAM. Safe natural bio-pigment production by Monascus purpureus using mixed carbon sources with cytotoxicity evaluation on root tips of Allium cepa L. J Food Sci Technol 2020; 58:2516-2527. [PMID: 34194088 DOI: 10.1007/s13197-020-04758-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Revised: 07/09/2020] [Accepted: 08/24/2020] [Indexed: 11/28/2022]
Abstract
By increasing the undesirable side effects of synthetic food pigments on human health, using safe natural food pigment become an urgent issue. Incorporate corn starch with oils conducted a high impact on red pigment production by Monascus purpureus. Fortification the medium with sesame oil raised the pigment production by 80% and the dry mass by 63% compared with free oil medium. Response surface methodology maximizes the production with 114.6% (12.8 A500) using medium constituents (g/l); Sesame oil 5; Corn starch 30; Yeast extract 1.5; KH2PO4 2.5 and MgSO4.7H2O 0.1. After evaluating red pigment stability in three common food components, citric acid showed a great effect on residual stability percentage compared with ascorbic and salicylic acid which decrease slightly the residual stability percentage at light and dark conditions. The mitotic index of red pigment was lower than the negative control at all tested concentrations. Different types of mitotic chromosomal abnormalities e.g. lagging chromosome, chromosomal bridge, chromosome and chromatin fragments, outside chromosome, chromosomal stickiness and micro nuclei were recorded. Insignificant increase in total mitotic aberrations percentage in all tested root tips treated with all concentrations of red pigment (1.23, 1.58, 1.63, 2.32 and 2.40%) compared with negative control (0.91%). There was a significant increase in total aberrations percentage after treatment with all concentrations (10, 15, 20 and 25%) of positive control (2.93, 3.00, 3.55 and 6.53 respectively) except (5%) which was insignificant (2.71%). From the previous data, this red pigment can be used as an alternative safe pigment in the food industry.
Collapse
Affiliation(s)
| | - Hassan A H Soltan
- Central Laboratory of Organic Agriculture, Agriculture Research Center, Giza, Egypt
| | | | - Sayed A M Osman
- Genetics Department, Faculty of Agriculture, Minia University, Minia, Egypt
| |
Collapse
|
47
|
García-Medina S, Galar-Martínez M, Gómez-Oliván LM, Torres-Bezaury RMDC, Islas-Flores H, Gasca-Pérez E. The relationship between cyto-genotoxic damage and oxidative stress produced by emerging pollutants on a bioindicator organism (Allium cepa): The carbamazepine case. Chemosphere 2020; 253:126675. [PMID: 32278918 DOI: 10.1016/j.chemosphere.2020.126675] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 03/30/2020] [Accepted: 03/31/2020] [Indexed: 06/11/2023]
Abstract
The carbamazepine (CBZ) is one of the most frequently detected anticonvulsant drugs in water bodies. Although there are reports of its ecotoxicological effects in the scientific literature, toxicity studies have not focused on establishing the mechanism by which CBZ produces its effect at environmentally relevant concentrations. The objective of this work was to evaluate cyto-genotoxicity and its relationship with oxidative stress produced by carbamazepine in the Allium cepa model. The cytotoxicity and genotoxicity, as well as the biomarkers of oxidative stress were analyzed in the roots of A. cepa, exposed to 1 and 31.36 μg L-1 after 2, 6, 12, 24, 48 and 72 h. The results show that genotoxic capacity of this drug in the roots of A. cepa is related to the generation of oxidative stress, in particular with production of hydroperoxides and oxidized proteins. Also, the cytotoxic effect has a high correlation with DNA damage. The results of the present study clearly indicate that bioassays with sensitive plants such as A. cepa are useful and complementary tools to evaluate the environmental impact of emerging contaminants.
Collapse
Affiliation(s)
- Sandra García-Medina
- Laboratory of Aquatic Toxicology, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, AV. Wilfrido Massieu S/n y cerrada Manuel Stampa, Col. Industrial Vallejo, Ciudad de México, CP, 07700, Mexico.
| | - Marcela Galar-Martínez
- Laboratory of Aquatic Toxicology, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, AV. Wilfrido Massieu S/n y cerrada Manuel Stampa, Col. Industrial Vallejo, Ciudad de México, CP, 07700, Mexico.
| | - Leobardo Manuel Gómez-Oliván
- Laboratory of Environmental Toxicology, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón intersección Paseo Tollocan S/n. Col. Residencial Colón, 50120, Toluca, Estado de México, Mexico
| | - Rosalía María Del Consuelo Torres-Bezaury
- Laboratory of Aquatic Toxicology, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, AV. Wilfrido Massieu S/n y cerrada Manuel Stampa, Col. Industrial Vallejo, Ciudad de México, CP, 07700, Mexico
| | - Hariz Islas-Flores
- Laboratory of Environmental Toxicology, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón intersección Paseo Tollocan S/n. Col. Residencial Colón, 50120, Toluca, Estado de México, Mexico
| | - Eloy Gasca-Pérez
- Laboratory of Aquatic Toxicology, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, AV. Wilfrido Massieu S/n y cerrada Manuel Stampa, Col. Industrial Vallejo, Ciudad de México, CP, 07700, Mexico; Cátedra CONACYT, Laboratory of Aquatic Toxicology, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, AV. Wilfrido Massieu S/n y cerrada Manuel Stampa, Col. Industrial Vallejo., Ciudad de México, CP, 07700, Mexico
| |
Collapse
|
48
|
Ju KC, Zhang B, Hu YL, Feng Y, Li XH, Liu YF, Li P, Mao QS, Xue WJ. High expression of G protein subunit gamma 13 is associated with poor prognosis of gastrointestinal stromal tumor. Pathol Res Pract 2020; 216:153143. [PMID: 32853961 DOI: 10.1016/j.prp.2020.153143] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/07/2020] [Accepted: 07/24/2020] [Indexed: 12/18/2022]
Abstract
The G protein subunit gamma 13 (GNG13) plays an important role in olfaction, vision, and biological behavior. However, our knowledge of the relationship between GNG13 expression and the clinicopathological features of gastrointestinal tumors is insufficient. Therefore, we used the Oncomine database to evaluate the expression of GNG13 mRNA in gastric cancer, the result showed that there was no significant difference in the expression of GNG13 between gastric cancer and adjacent normal tissues, and GNG13 mRNA expression was assessed in 32 matched pairs of Gastrointestinal adenocarcinoma tissues and adjacent normal tissues as well as 32 matched pairs of gastrointestinal stromal tumor (GIST) and adjacent normal tissues by quantitative reverse transcription-polymerase chain reaction analysis. The results suggested that GNG13 is upregulated in gastrointestinal stromal tumors. Immunohistochemical analysis was used to detect the GNG13 in the tissues of 123 patients with GIST. High cytoplasmic expression of GNG13, which was observed in 65.85 % of GIST patients, significantly correlated with mitotic index(P = 0.036) and tumor size(P = 0.024). Multiple logistic regression analysis showed that the expression of GNG13 was significantly associated with tumor size. Kaplan-Meier analysis indicated that high GNG13 expression was associated with poor prognosis of GIST. Multivariate Cox regression analysis indicated that the expression of GNG13, mitotic index and tumor size were independent adverse prognostic factors of GIST. These findings suggest that GNG13 is associated with the malignant phenotype of GIST and may serve as a marker of poor prognosis.
Collapse
Affiliation(s)
- Ke-Cheng Ju
- Department of Gastrointestinal Surgery, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China; Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China
| | - Bin Zhang
- Department of Infectious Diseases, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China
| | - Yi-Lin Hu
- Department of Gastrointestinal Surgery, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China; Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China
| | - Ying Feng
- Department of Gastrointestinal Surgery, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China; Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China
| | - Xiao-Hong Li
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China
| | - Yi-Fei Liu
- Department of Pathology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China
| | - Peng Li
- Department of Gastrointestinal Surgery, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China
| | - Qin-Sheng Mao
- Department of Gastrointestinal Surgery, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China.
| | - Wan-Jiang Xue
- Department of Gastrointestinal Surgery, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China; Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China.
| |
Collapse
|
49
|
Domingo RA, Tripathi S, Vivas-Buitrago T, Lu VM, Chaichana KL, Quiñones-Hinojosa A. Mitotic Index and Progression-Free Survival in Atypical Meningiomas. World Neurosurg 2020; 142:191-196. [PMID: 32615290 DOI: 10.1016/j.wneu.2020.06.189] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 06/22/2020] [Indexed: 12/28/2022]
Abstract
Extent of resection and tumor grade are considered the most important predictors of progression-free survival (PFS) in meningiomas. However, adjuvant therapy for atypical meningiomas remains controversial, with variable PFS rates of up to 40%. The current mitotic index (MI) range for atypical meningiomas is broad, comprising all tumors with >4 and <20 mitotic count per 10 high-power fields, leading to substantial within-grade variation of recurrence risk, especially in borderline histologic cases, creating discordance between the clinical course and the application of the classification criteria. Using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, a search of electronic databases from inception to July 2019 identified 121 articles for screening. After proper exclusion criteria, 7 articles were included for data extraction and analysis using meta-analysis of proportions. The MI was the variable of interest in the multivariate regressions and analyzed as a predictor of recurrence using hazard ratios (HRs) (95% confidence intervals). Separate random effect models were used for studies reporting the MI as a continuous or categorical variable. The pooled study results in this meta-analysis demonstrate a homogeneous statistically significant correlation between the MI and the rate of local recurrence after surgical resection regardless of the reporting method (continuous: HR = 1.20; categorical: HR = 2.65). However, significant limitations were noted, including the lack of a standardized method for MI calculation and heterogeneity of MI reports. We encourage the community to report their experience with the MI with greater precision and uniformity to further assess the influence of the MI on PFS within atypical meningiomas.
Collapse
Affiliation(s)
- Ricardo A Domingo
- Neurologic Surgery Department, Mayo Clinic, Jacksonville, Florida, USA
| | - Shashwat Tripathi
- Neurologic Surgery Department, Mayo Clinic, Jacksonville, Florida, USA
| | | | - Victor M Lu
- Neurologic Surgery Department, Mayo Clinic, Rochester, Minnesota, USA
| | | | | |
Collapse
|
50
|
Çıldır DS, Liman R. Cytogenetic and genotoxic assessment in Allium cepa exposed to imazalil fungicide. Environ Sci Pollut Res Int 2020; 27:20335-20343. [PMID: 32242316 DOI: 10.1007/s11356-020-08553-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 03/23/2020] [Indexed: 06/11/2023]
Abstract
Imazalil (IMZ), a fungicide containing imidazole group, is extensively used for the prevention and treatment of fungal diseases in plants. Current study was performed to examine cyto-genotoxic potential of IMZ on Allium cepa roots by following Allium ana-telophase and single cell gel electrophoresis (comet) assays. The concentration which reduced the growth of the root tips of IMZ by 50% compared to the negative control group (EC50) was found to be 1 μg/mL by Allium root growth inhibition test. 0.5, 1, and 2 μg/mL concentrations of IMZ were exposed to Allium roots for intervals of 24, 48, 72, and 96 h. 10 μg/mL of methyl methane sulfonate (MMS) and distilled water were used as control groups, both positive and negative. Statistical analysis was performed by using one-way ANOVA with Duncan's multiple comparison tests at p ≤ 0.05 and Pearson correlation test at p = 0.01. IMZ showed cytotoxic effect by statistically decreasing root growth and mitotic index (MI) and also genotoxic effect by statistically increasing chromosomal aberrations (CAs) and DNA damage compared to the negative control group. With these cyto-genotoxic effects, it should be used carefully and further cyto-genotoxic mechanisms should be investigated along with other toxicity tests.
Collapse
Affiliation(s)
- Damla Selin Çıldır
- Molecular Biology and Genetics Department, Faculty of Arts and Sciences, Uşak University, 1 Eylül Campus, 64300, Uşak, Turkey
| | - Recep Liman
- Molecular Biology and Genetics Department, Faculty of Arts and Sciences, Uşak University, 1 Eylül Campus, 64300, Uşak, Turkey.
| |
Collapse
|