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https://www.readbyqxmd.com/read/28437889/safety-of-sucrose-esters-from-physalis-peruviana-l-in-a-28-day-repeated-dose-study-in-mice
#1
Yanet C Ocampo, Daneiva C Caro, David E Rivera, Luis A Franco
Although extracts and consumed foods from Physalis species contain sucrose esters from their glandular trichomes, there is no experimental data available on their toxicological effects. As peruvioses A and B isolated from Physalis peruviana L. calyces have proved to be effective anti-inflammatory and immunomodulatory compounds, this work aimed to investigate their sub-acute toxicity study and genotoxicity. For this, CD-1(ICR) mice were treated intraperitoneally with peruvioses at doses of 2.5, 5, and 10mg/kg/day for 28 consecutive days, to simulate therapeutic and over-therapeutic dosage levels...
April 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28431378/development-of-novel-alternative-biodiesel-fuels-for-reducing-pm-emissions-and-pm-related-genotoxicity
#2
Po-Ming Yang, Chia-Chi Wang, Ying-Chi Lin, Syu-Ruei Jhang, Li-Jung Lin, Yuan-Chung Lin
This paper intend to investigate the effects of biodiesel fuel blends comprising of waste-cooking oil and butanol-diesel (B10W10-B10W40) under steady-state conditions. Both particulate organic carbon (OC) and PM including PM2.5 and PM10 significantly decreased with the increasing percentage of biodiesel fuel blends. The fuel blend of B10W40 also demonstrated the most effective function in reducing the emissions of PM10 and PM2.5 in the volume by 59.4% and 57.7%, respectively. Moreover, the emissions of nitrogen oxides decreased with the blending of B10W10-B10W40 (13...
April 18, 2017: Environmental Research
https://www.readbyqxmd.com/read/28428088/modulatory-effect-of-curcumin-against-genotoxicity-and-oxidative-stress-induced-by-cisplatin-and-methotrexate-in-male-mice
#3
Noha Ibrahim Said Salem, Magda Mohammad Noshy, Azza Ali Said
The use of dietary antioxidants to modulate the toxic side effects induced by the anticancer drugs used in chemotherapy is currently eliciting considerable interest. This study was undertaken to investigate the possible protective role of the antioxidant curcumin (CMN) against genotoxicity, cytotoxicity and oxidative stress induced by cisplatin and methotrexate. Male mice were administered CMN orally in the dosages of 60, 90, and 120 mg/kg for three consecutive days before a single intraperitoneal injection of either cisplatin (6...
April 17, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28415036/toxic-effects-of-glyphosate-on-diploid-and-triploid-fin-cell-lines-from-misgurnus-anguillicaudatus
#4
Yanjie Qin, Xia Li, Yang Xiang, Di Wu, Liwen Bai, Zhuangzhuang Li, Yan Liang
We examined the toxic effects of glyphosate on diploid (DIMF) and triploid (TRMF) fin cell lines from the Oriental Weather Loach Misgurnus anguillicaudatus. The LC50 values of glyphosate estimated by methylthiazolyldiphenyl-tetrazolium bromide (MTT) assay were 315.34 and 371.77 mg/L for DIMF and TRMF, respectively. Superoxide dismutase (SOD) and glutathione-S-transferase (GST) activities in DIMF and TRMF cells gradually increased and then decreased with increasing glyphosate concentrations, reaching a maximum at 240 mg/L glyphosate...
March 25, 2017: Chemosphere
https://www.readbyqxmd.com/read/28412625/toxicity-of-two-effluents-from-agricultural-activity-comparing-the-genotoxicity-of-sugar-cane-and-orange-vinasse
#5
Camila Fernandes H Garcia, Raphael B de Souza, Cleiton Pereira de Souza, Cintya Ap Christofoletti, Carmem S Fontanetti
Vinasse, produced by several countries as a by-product of agricultural activity, has different alternatives for its reuse, mainly fertirrigation. Several monocultures, such as sugar cane and orange crops, produce this effluent. Sugar cane vinasse is already widely used in fertirrigation and orange vinasse has potential for this intention. However, its use as a fertilizer has caused great concern. Thus, ecotoxicological evaluation is extremely important in order to assess the possible effects on the environment...
April 13, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28408196/genotoxicity-testing-of-sodium-formononetin-3-sulphonate-sul-f-by-assessing-bacterial-reverse-mutation-chromosomal-aberrations-and-micronucleus-tests
#6
Chunmei Li, Yonglin Gao, Yunzhi Wang, Guisheng Li, Xiaochen Fan, Yanshen Li, Chenghua Guo, Jun Tao
As part of a safety evaluation, we evaluated the potential genotoxicity of sodium formononetin-3'-sulphonate (Sul-F) using bacterial reverse mutation assay, chromosomal aberrations detection, and mouse micronucleus test. In bacterial reverse mutation assay using five strains of Salmonella typhimurium (TA97, TA98, TA100, TA102 and TA1535), Sul-F (250, 500, 1000, 2000, 4000 μg/plate) did not increase the number of revertant colonies in any tester strain with or without S9 mix. In a chromosomal assay using Chinese hamster lung fibroblast (CHL) cells, there were no increases in either kind of aberration at any dose of Sul-F (400, 800, and 1600 μg/mL) treatment groups with or without S9 metabolic activation...
April 10, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28400286/increased-oxidative-stress-and-cytokinesis-block-micronucleus-cytome-assay-parameters-in-pregnant-women-with-gestational-diabetes-mellitus-and-gestational-arterial-hypertension
#7
Mina Toljic, Amira Egic, Jelena Munjas, Natasa Karadzov Orlic, Zagorka Milovanovic, Aleksandra Radenkovic, Jovana Vuceljic, Ivana Joksic
We investigated whether gestational diabetes mellitus (GDM) and gestational arterial hypertension (GH) are associated with increased oxidative stress and DNA damage. Study included 3 groups of pregnant women (GDM, GH and control). DNA damage biomarkers (micronuclei MNi, nucleoplasmic bridges NPBs and nuclear buds NBUDs) were assessed by cytokinesis-block micronucleus cytome assay. Oxidative stress levels were evaluated by analyzing malondialdehyde equivalents (TBARS) and 8-hydroxy-2'-deoxyguanosine (8-OHdG)...
April 8, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28392458/anti-inflammatory-antimycobacterial-and-genotoxic-evaluation-of-doliocarpus-dentatus
#8
Raissa Borges Ishikawa, Maicon Matos Leitão, Roberto Mikio Kassuya, Luis Fernando Macorini, Flora Martinez Figueira Moreira, Claudia Andrea Lima Cardoso, Roberta Gomes Coelho, Arnildo Pott, Guilherme Martins Gelfuso, Julio Croda, Rodrigo Juliano Oliveira, Candida Aparecida Leite Kassuya
ETHNOPHARMACOLOGICAL RELEVANCE: Doliocarpus dentatus is a medicinal plant widely used in Mato Grosso do Sul State for removing the swelling pain caused by the inflammation process and for treating urine retention. AIM OF THE STUDY: The genotoxic aspects and the anti-inflammatory and antimycobacterial activity of the ethanolic extract obtained from the leaves of D. dentatus (EEDd) were investigated. MATERIALS AND METHODS: The EEDd was evaluated against Mycobacterium tuberculosis, and the compound composition was evaluated and identified by nuclear magnetic resonance (NMR)...
April 6, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28391461/toxicological-assessment-of-tungsten-oxide-nanoparticles-in-rats-after-acute-oral-exposure
#9
Srinivas Chinde, Naresh Dumala, Mohammed Fazlur Rahman, Sarika Srinivas Kalyan Kamal, Srinivas Indu Kumari, Mohammed Mahboob, Paramjit Grover
Advances in and the rapid growth of the nanotechnology sector have escalated manufacture of nanoparticles (NPs), resulting in a significant increase in the probability of exposure of humans and wildlife to these materials. Many NPs have been found to exert genotoxicity. Therefore, genotoxicity studies are mandatory to assess the toxicity of NPs as a concern of succumbing to genetic diseases and cancers are universal. Tungsten oxide (WO3) NPs are being explored extensively in various fields. However, the toxicological data of WO3 NPs by oral route in mammals is limited...
April 8, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28389326/lipid-soluble-green-tea-extract-genotoxicity-and-subchronic-toxicity-studies
#10
Zheng Liu, Dongying Liu, Jianguo Cheng, Song Mei, Ying Fu, Weiqi Lai, Yin Wang, Yihong Xu, Trung D Vo, Barry S Lynch
To assess the potential safety of lipid soluble green tea extract, also referred to as lipid soluble tea polyphenols (LSTP), a series of genotoxicity tests were conducted, including an Ames, in vivo mouse micronucleus, and in vivo mouse sperm abnormality test. The toxicity of LSTP was evaluated in 90- and 30-day feeding studies. LSTP did not show mutagenic activity in the Ames test and no genotoxic potential in the in vivo assays at doses up to 10 g/kg body weight (bw). In the 90-day feeding study, LSTP was given in the diet at levels providing 0, 0...
April 4, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28389280/in-vitro-safety-and-efficacy-evaluations-of-a-complex-botanical-mixture-of-eugenia-dysenterica-dc-myrtaceae-prospects-for-developing-a-new-dermocosmetic-product
#11
Larissa Cleres Moreira, Renato Ivan de Ávila, Danillo Fabrini Maciel Costa Veloso, Tatiana Nascimento Pedrosa, Emerson Silva Lima, Renê Oliveira do Couto, Eliana Martins Lima, Aline Carvalho Batista, José Realino de Paula, Marize Campos Valadares
In the context of developing a new natural product-based cosmetic, the in vitro efficacy and safety evaluations of a complex botanical mixture based on Eugenia dysenterica leaf hydroalcoholic extract (EDE) (2.5-1000μg/mL) were carried out. Chromatographic analysis demonstrated the presence of the tannin (ellagic acid) and flavonoids (quercetin and gallic acid) which characterize the EDE as a polyphenol-rich mixture. Using HFF-1 fibroblasts, it was shown that EDE promoted cell regeneration after UVA exposure...
April 4, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28387869/genotoxicity-study-of-nickel-oxide-nanoparticles-in-female-wistar-rats-after-acute-oral-exposure
#12
Naresh Dumala, Bhanuramya Mangalampalli, Srinivas Chinde, Srinivas Indu Kumari, Mohammad Mahoob, Mohammad Fazlur Rahman, Paramjit Grover
Nanoparticles (NPs) apart from their widespread advantages and increased utilisation, have aroused concerns over their safe use. Nickel (II) oxides (NiO) NPs are used as catalysts, biosensors and in many of the consumer products. The increasing use of NiO NPs necessitates an improved understanding of their potential impact on the environment and human health. In this study, we investigated the acute genotoxic effects of NiO NPs by oral route administration with three different doses (125, 250 and 500 mg/kg bw)...
April 6, 2017: Mutagenesis
https://www.readbyqxmd.com/read/28386019/compositionally-distinct-nuclear-pore-complexes-of-functionally-distinct-dimorphic-nuclei-in-ciliate-tetrahymena
#13
Masaaki Iwamoto, Hiroko Osakada, Chie Mori, Yasuhiro Fukuda, Koji Nagao, Chikashi Obuse, Yasushi Hiraoka, Tokuko Haraguchi
The nuclear pore complex (NPC), a gateway for nucleocytoplasmic trafficking, is composed of about 30 different proteins called nucleoporins. It remains unknown whether the NPCs within a species are homogeneous or vary depending on the cell type, or physiological condition. Here, we present evidence for compositionally distinct NPCs that form within a single cell in a binucleated ciliate. In Tetrahymena thermophila, each cell contains both a transcriptionally-active macronucleus (MAC) and a germline micronucleus (MIC)...
April 6, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28384500/bioaccumulation-of-trace-metals-and-total-petroleum-and-genotoxicity-responses-in-an-edible-fish-population-as-indicators-of-marine-pollution
#14
Avelyno D'Costa, S K Shyama, M K Praveen Kumar
The present study reports the genetic damage and the concentrations of trace metals and total petroleum hydrocarbons prevailing in natural populations of an edible fish, Arius arius in different seasons along the coast of Goa, India as an indicator of the pollution status of coastal water. Fish were collected from a suspected polluted site and a reference site in the pre-monsoon, monsoon and post-monsoon seasons. Physico-chemical parameters as well as the concentrations of total petroleum hydrocarbons (TPH) and trace metals in the water and sediment as well as the tissues of fish collected from these sites were recorded...
April 3, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28380406/the-role-of-acetone-in-the-omim-bf4-mediated-adverse-effects-on-tissues-of-mussels-human-lymphocytes-and-the-fruit-fly-drosophila-melanogaster
#15
Vasiliki Tsarpali, Andreas Goutas, Anna Karyda, Ioanna Efthimiou, Maria Antonopoulou, Elena Drosopoulou, Dimitrios Vlastos, Ioannis Konstantinou, Penelope Mavragani-Tsipidou, Stefanos Dailianis
The present study investigated [omim][BF4]-mediated adverse effects on biological models widely used in toxicological studies. Specifically, mussels of the genus Mytilus, human lymphocytes and fruit flies of the species Drosophila melanogaster, were exposed to [omim][BF4] at concentrations ranging from micro- to milligrams per liter, with or without the presence of acetone as a carrier solvent and thereafter [omim][BF4]-mediated adverse effects were analyzed appropriately (stress indices, such as lipid peroxidation byproducts, acetylcholinesterase/AChE activity and micronucleus/MN formation frequency, in mussel gills, Cytokinesis Block Micronucleus/CBMN assay and SMART test in human lymphocytes and fruit flies respectively)...
March 24, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28375765/safety-assessment-and-botanical-standardization-of-an-edible-species-from-south-america
#16
Giseli Karenina Traesel, Camila Dias Machado, Cleide Adriane Signor Tirloni, Jacqueline Vergutz Menetrier, Francislaine Aparecida Dos Reis Lívero, Emerson Luiz Botelho Lourenço, Silvia Aparecida Oesterreich, Jane Manfron Budel, Arquimedes Gasparotto Junior
Tropaeolum majus L. (Tropaeolaceae), commonly known as nasturtium, is an important edible plant native to the Andean States and widely disseminated throughout South America. Despite the use of this species is quite widespread, there are no minimum quality control standards or data on its genotoxicity. So, the aim of this study was to present a detailed anatomical and histochemical study for Tropaeolum majus and provide genotoxicity parameters of a preparation routinely used in South American countries. First, three different Tropaeolum majus aqueous extracts (TMAEs) at concentrations of 1...
April 4, 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28373882/increased-chromosomal-and-oxidative-dna-damage-in-patients-with-multinodular-goiter-and-their-association-with-cancer
#17
Hamiyet Donmez-Altuntas, Fahri Bayram, Nazmiye Bitgen, Sibel Ata, Zuhal Hamurcu, Gulden Baskol
Thyroid nodules are a common clinical problem worldwide. Although thyroid cancer accounts for a small percentage of thyroid nodules, the majority are benign. 8-Hydroxy-2'-deoxyguanosine (8-OHdG) levels are a marker of oxidative stress and play a key role in the initiation and development of a range of diseases and cancer types. This study evaluates cytokinesis-block micronucleus cytome (CBMN-cyt) assay parameters and plasma 8-OHdG levels and their association with thyroid nodule size and thyroid hormones in patients with multinodular goiter...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/28366950/effect-of-the-gstm1-genotype-on-the-biomarkers-of-exposure-to-polycyclic-aromatic-hydrocarbons-meta-analysis
#18
Dandan Li, Bingling Wang, Guochang Feng, Meng Xie, Lijuan Wang, Ruqin Gao
The role of glutathione S-transferase Mu 1 (GSTM1) in the biomonitoring of polycyclic aromatic hydrocarbons (PAHs) is not clear. Our purpose has been to evaluate the influence of GSTM1 genotypes on 1-hydroxypyrene (1-OHP), deoxyribonucleic acid (DNA) adducts, and micronucleus frequency in both occupational and non-occupational populations of null and active GSTM1 carriers. We conducted a meta-analysis on 25 articles that met our strict inclusion criteria (11 studies on 1-OHP, 9 on DNA adducts, and 5 on the micronucleus frequency)...
March 30, 2017: International Journal of Occupational Medicine and Environmental Health
https://www.readbyqxmd.com/read/28364597/a-new-acridine-derivative-induces-cell-cycle-arrest-and-antiangiogenic-effect-on-ehrlich-ascites-carcinoma-model
#19
Vivianne Mendes Mangueira, Tatianne Mota Batista, Monalisa Taveira Brito, Tatyanna Kelvia Gomes de Sousa, Ryldene Marques Duarte da Cruz, Renata Albuquerque de Abrantes, Robson Cavalcanti Veras, Isac Almeida de Medeiros, Karina Karla de Paula Medeiros, Ana Ligia da Costa Pereira, Vanessa de Lima Serafim, Ricardo Olímpio de Moura, Marianna Vieira Sobral
BACKGROUND: Acridine derivatives, including amsacrine, have antitumor activity. However, side effects, development of resistance and their low bioavailability, have limited their use. Herein, we described the synthesis, and evaluated the toxicity and antitumor activity of a new amsacrine analogous, the N'-(2-chloro-6-methoxy-acridin-9-yl)-2-cyano-3-(4-dimethylaminophenyl)-acrilohidrazida (ACS-AZ10). METHODS: The compound was obtained in a linear pathway where the ASC-Az intermediate was obtained by coupling of 6,9-dichloro-3-methoxy-acridine and 2-ciany-acethohidrazide followed by condensation with the corresponding aldehyde...
March 29, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28362989/effects-of-moquiniastrum-polymorphum-ssp-floccosum-ethnolic-extract-on-colorectal-carcinogenesis-induced-by-1-2-dimethylhydrazine
#20
S M A Limeiras, B C Oliveira, L R Pessatto, J R Pesarini, C A L Kassuya, A C D Monreal, W B Cantero, R Antoniolli-Silva, A C M B Antoniolli-Silva, M E A Stefanello, R J Oliveira
The objective of this study was to evaluate the effect of Moquiniastrum polymorphum ssp floccosum ethanolic extract (MPEE) on 1,2 dimethylhydrazine (DMH)-induced colorectal carcinogenesis in mice. Forty-two male Swiss mice (Mus musculus) were subdivided into six groups (N = 7/group): negative control, DMH, MPEE, pre-treatment, simultaneous, and post-treatment. Results showed that MPEE has antigenotoxic potential on the tested protocols pre- and silmultaneous treatment, and the percent damage reductions (%DRs) were 81...
March 16, 2017: Genetics and Molecular Research: GMR
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