Ellagic acid, a natural polyphenol protects rat peripheral blood lymphocytes against nicotine-induced cellular and DNA damage in vitro: With the comparison of N-acetylcysteine

Toxicology ◽  
2007 ◽  
Vol 230 (1) ◽  
pp. 11-21 ◽  
Author(s):  
Adluri Ram Sudheer ◽  
Shanmugavelu Muthukumaran ◽  
Nagarajan Devipriya ◽  
Venugopal Padmanabhan Menon
Keyword(s):  
Dna Damage ◽  
Ellagic Acid ◽  
Peripheral Blood ◽  
Peripheral Blood Lymphocytes ◽  
Blood Lymphocytes ◽  
Natural Polyphenol

scholarly journals Evaluation of Genotoxic and Cytotoxic Effects in Human Peripheral Blood Lymphocytes ExposedIn Vitroto Neonicotinoid Insecticides News

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
María Elena Calderón-Segura ◽  
Sandra Gómez-Arroyo ◽  
Rafael Villalobos-Pietrini ◽  
Carmen Martínez-Valenzuela ◽  
Yolanda Carbajal-López ◽  
...  
Keyword(s):  
Dna Damage ◽  
Peripheral Blood ◽  
Human Peripheral Blood ◽  
Peripheral Blood Lymphocytes ◽  
Blue Dye ◽  
Cytotoxic Effects ◽  
Blood Lymphocytes ◽  
Neonicotinoid Insecticides ◽  
Human Peripheral Blood Lymphocytes

Calypso (thiacloprid), Poncho (clothianidin), Gaucho (imidacloprid), and Jade (imidacloprid) are commercial neonicotinoid insecticides, a new class of agrochemicals in México. However, genotoxic and cytotoxic studies have not been performed. In the present study, human peripheral blood lymphocytes (PBL) were exposedin vitroto different concentrations of the four insecticides. The genotoxic and cytotoxic effects were evaluated using the alkaline comet and trypan blue dye exclusion assays. DNA damage was evaluated using two genotoxicity parameters: tail length and comet frequency. Exposure to9.5×10-6to5.7×10-5 M Jade;2.8×10-4to1.7×10-3 M Gaucho;0.6×10-1to1.4×10-1 M Calypso;1.2×10-1to9.5×10-1 M Poncho for 2 h induced a significant increase DNA damage with a concentration-dependent relationship. Jade was the most genotoxic of the four insecticides studied. Cytotoxicity was observed in cells exposed to18×10-3 M Jade,2.0×10-3 M Gaucho,2.0×10-1 M Calypso, 1.07 M Poncho, and cell death occurred at30×10-3 M Jade,3.3×10-3 M Gaucho,2.8×10-1 M Calypso, and 1.42 M Poncho. This study provides the first report of genotoxic and cytotoxic effects in PBL followingin vitroexposure to commercial neonicotinoid insecticides.

Genotoxicity induced by pesticide mixtures: in-vitro studies on human peripheral blood lymphocytes

2007 ◽  
Vol 23 (8) ◽  
pp. 449-458 ◽  
Author(s):  
PP Das ◽  
AP Shaik ◽  
K Jamil
Keyword(s):  
Dna Damage ◽  
Peripheral Blood ◽  
Human Peripheral Blood ◽  
Peripheral Blood Lymphocytes ◽  
Probit Analysis ◽  
Blue Dye ◽  
Pesticide Mixtures ◽  
Blood Lymphocytes ◽  
Human Peripheral Blood Lymphocytes

To assess the damage caused by pesticides and their mixtures on humans, we designed in-vitro experiments to evaluate their cytotoxicity and genotoxicity. Three equimolar pesticide mixtures were investigated for their capability to affect cultured human peripheral blood lymphocytes. The LC50 values for cytotoxicity, using standard trypan blue dye exclusion and calculated by probit analysis, were 4.18, 5.76, and 7.5 μM for endosulfan, carbofuran, and monocrotophos, respectively. When combined in equimolar concentrations, the LC50 values for cytotoxicity were 0.7, 0.9, and 1.0 μM for monocrotophos + carbofuran, endosulfan + monocrotophos, and endosulfan + carbofuran, respectively, using the method. DNA damage was estimated using chromosomal aberrations (chromatid breaks, fragments, gaps, aneuploidy, and satellite association) and comet assays using 1/10 of the LC50 concentrations. Using a standard alkaline comet assay procedure, high concentrations of individual pesticides (0.5–4.0 μM) caused significant DNA damage as indicated by visible tail lengths. Lower concentrations (0.05–0.5 μM) of their binary mixtures could cause the same effect. The results suggest that analysis of genotoxicity may serve as an important biomarker for occupational and household exposure to pesticides, especially mixtures of pesticides, with different modes of action.

scholarly journals Influence of dietary fish oil supplementation on DNA damage in peripheral blood lymphocytes of nine healthy dogs

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Francisco J. Pellegrino ◽  
Analía Risso ◽  
Yanina Corrada ◽  
Rocío C. Gambaro ◽  
Analía I. Seoane
Keyword(s):  
Dna Damage ◽  
Fish Oil ◽  
Peripheral Blood ◽  
Peripheral Blood Lymphocytes ◽  
Blood Lymphocytes ◽  
Dietary Fish ◽  
Healthy Dogs ◽  
Fish Oil Supplementation

Long-Term Follow-up of Patients with Recurrent Malignant Gliomas Treated with Adjuvant Adoptive Immunotherapy

Neurosurgery ◽  
1991 ◽  
Vol 28 (1) ◽  
pp. 16-23 ◽  
Author(s):  
Kevin O. Lillehei ◽  
Dawn H. Mitchell ◽  
Stephen D. Johnson ◽  
Larry E. McCleary ◽  
Carol A. Kruse
Keyword(s):  
Survival Time ◽  
Adoptive Immunotherapy ◽  
Peripheral Blood ◽  
Interleukin 2 ◽  
Peripheral Blood Lymphocytes ◽  
Lak Cells ◽  
Prior Chemotherapy ◽  
Blood Lymphocytes ◽  
Significant Difference

Abstract Between August 1986 and October 1987, the Denver Brain Tumor Research Group conducted a clinical trial using autologous human recombinant interleukin-2 (rIL-2)-activated lymphocytes to treat 20 patients with recurrent high-grade gliomas. The trial involved surgical resection and/or decompression followed by intracavitary implantation of lymphokine-activated killer (LAK) cells and autologous stimulated lymphocytes (ASL) along with rIL-2 in a plasma clot. One month later, stimulated lymphocytes and rIL-2 were infused through a Rickham reservoir attached to a catheter directed into the tumor bed. The LAK cells were rIL-2-activated peripheral blood lymphocytes cultured for 4 days; the ASL were lectin- and rIL-2-activated peripheral blood lymphocytes cultured for 10 days. Of the 20 patients treated, 11 were evaluated as a group (mean age, 44 years, range, 15-61 years; mean Karnofsky rating, 69, range, 50-100; mean Decadron dose at entry, 14 mg/d. range, 0-32). The average number of lymphocytes implanted was 7.6 × 109 (range, 1.9-27.5 × 109), together with 1 to 4 × 106 U of rIL-2. To date, 10 of the 11 patients died, all from recurrent tumor growth. The median overall survival time was 63 weeks (range, 36-201; mean, 86). The median survival time after immunotherapy was 18 weeks (range, 11-151; mean, 39). No significant difference in survival after immunotherapy was found between those patients who had received previous chemotherapy and those who had not. The use of steroids or prior chemotherapy did not influence the in vitro generation of ASL or LAK cells. Prior chemotherapy did correlate, however, with diminished in vitro cytotoxicity against the natural killer-sensitive (K562) target cell by LAK cells (P < 0.05) but not that by ASL. There were no major adverse side effects. Although adoptive immunotherapy was safe and well tolerated, its therapeutic potential remains in question.

scholarly journals Analysis of 177Lu-DOTA-Octreotate Therapy-Induced DNA Damage in Peripheral Blood Lymphocytes of Patients with Neuroendocrine Tumors

2015 ◽  
Vol 56 (4) ◽  
pp. 505-511 ◽  
Author(s):  
D. Denoyer ◽  
P. Lobachevsky ◽  
P. Jackson ◽  
M. Thompson ◽  
O. A. Martin ◽  
...  
Keyword(s):  
Dna Damage ◽  
Neuroendocrine Tumors ◽  
Peripheral Blood ◽  
Peripheral Blood Lymphocytes ◽  
Blood Lymphocytes
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