scholarly journals Suitability of a Cellulose-Based Nanomaterial for the Remediation of Heavy Metal Contaminated Freshwaters: A Case-Study Showing the Recovery of Cadmium Induced DNA Integrity Loss, Cell Proliferation Increase, Nuclear Morphology and Chromosomal Alterations on Dreissena polymorpha

Nanomaterials ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1837 ◽  
Author(s):  
Patrizia Guidi ◽  
Margherita Bernardeschi ◽  
Mara Palumbo ◽  
Massimo Genovese ◽  
Vittoria Scarcelli ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Dreissena Polymorpha ◽  
Physiological Activity ◽  
Control Level ◽  
Negative Control Group ◽  
Negative Control ◽  
Cellular Damage ◽  
Control Group ◽  
Dna Integrity ◽  
Remediation Process

The contamination of freshwaters by heavy metals represents a great problem, posing a threat for human and environmental health. Cadmium is classified as carcinogen to humans and its mechanism of carcinogenicity includes genotoxic events. In this study a recently developed eco-friendly cellulose-based nanosponge (CNS) was investigated as a candidate in freshwater nano-remediation process. For this purpose, CdCl2 (0.05 mg L−1) contaminated artificial freshwater (AFW) was treated with CNS (1.25 g L−1 for 2 h), and cellular responses were analyzed before and after CNS treatment in Dreissena polymorpha hemocytes. A control group (AFW) and a negative control group (CNS in AFW) were also tested. DNA primary damage was evaluated by Comet assay while chromosomal damage and cell proliferation were assessed by Cytome assay. AFW exposed to CNS did not cause any genotoxic effect in zebra mussel hemocytes. Moreover, DNA damage and cell proliferation induced by Cd(II) turned down to control level after 2 days when CNS were used. A reduction of Cd(II)-induced micronuclei and nuclear abnormalities was also observed. CNS was thus found to be a safe and effective candidate in cadmium remediation process being efficient in metal sequestering, restoring cellular damage exerted by Cd(II) exposure, without altering cellular physiological activity.

scholarly journals Assessment of Anti-Ageing Potential of Consciousness Energy Healing Treated DMEM and HFF-1 Cells using Cellular Proliferation and Collagen Metabolism Assays

2019 ◽  
Vol 4 (1) ◽  
pp. 1-6
Author(s):  
Mahendra Kumar Trivedi ◽  
Dahryn Trivedi ◽  
Alice Branton ◽  
Gopal Nayak ◽  
Sambhu Charan Mondal ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Cell Line ◽  
Cellular Proliferation ◽  
Negative Control Group ◽  
Skin Aging ◽  
Negative Control ◽  
Control Group ◽  
Complex Biological Process ◽  
Collagen Level ◽  
Energy Healing

Skin health and aging are the complex biological process influenced by several intrinsic (or endogenous) and extrinsic (or exogenous) factors. Various skin-based therapies are currently available to rejuvenate the skin, but they might be related with some side-effects such as scarring. The objective of the present study was to evaluate the effect of Consciousness Energy Healing Treatment (The Trivedi Effect®) on the human foreskin fibroblast (HFF-1) cell line and Dulbecco’s Modified Eagle Medium (DMEM) for skin health parameters like cell proliferation and synthesis of collagen. The rate of cellular proliferation in HFF-1 cells was identified, and the results found that the Biofield Energy Treated DMEM significantly (p ≤ 0.001) increased by 152.38% compared to the negative control group. Additionally, the cell proliferation was also significantly increased by 71.43% in the Biofield Energy Treated cells compared to the negative control group. Similarly, the collagen level was significantly (p ≤ 0.001) increased by 60.42% in the Biofield Energy Treated DMEM compared with the negative control group. Hence, the results exhibited a significant improvement of collagen synthesis and cellular proliferation in the Biofield Energy Treated DMEM for improving skin health. It can be concluded that The Trivedi Effect® - Consciousness Energy Healing Treatment might be a complementary and alternative approach with respect to the skin health, anti-aging in DMEM compared with the HFF-1 cell line. Therefore, the Biofield Energy Treated DMEM could be useful for the development of effective cosmetic products for the prevention and treatment of several skin problems such as erythema, contact dermatitis, skin aging, wrinkles, etc.

scholarly journals Effect-Based Approach to Assess Nanostructured Cellulose Sponge Removal Efficacy of Zinc Ions from Seawater to Prevent Ecological Risks

Nanomaterials ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1283 ◽  
Author(s):  
Giulia Liberatori ◽  
Giacomo Grassi ◽  
Patrizia Guidi ◽  
Margherita Bernardeschi ◽  
Andrea Fiorati ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ion ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Negative Control Group ◽  
Negative Control ◽  
Control Group ◽  
Dna Integrity ◽  
Ecotoxicological Evaluation ◽  
Gill Cells

To encourage the applicability of nano-adsorbent materials for heavy metal ion removal from seawater and limit any potential side effects for marine organisms, an ecotoxicological evaluation based on a biological effect-based approach is presented. ZnCl2 (10 mg L−1) contaminated artificial seawater (ASW) was treated with newly developed eco-friendly cellulose-based nanosponges (CNS) (1.25 g L−1 for 2 h), and the cellular and tissue responses of marine mussel Mytilus galloprovincialis were measured before and after CNS treatment. A control group (ASW only) and a negative control group (CNS in ASW) were also tested. Methods: A significant recovery of Zn-induced damages in circulating immune and gill cells and mantle edges was observed in mussels exposed after CNS treatment. Genetic and chromosomal damages reversed to control levels in mussels’ gill cells (DNA integrity level, nuclear abnormalities and apoptotic cells) and hemocytes (micronuclei), in which a recovery of lysosomal membrane stability (LMS) was also observed. Damage to syphons, loss of cilia by mantle edge epithelial cells and an increase in mucous cells in ZnCl2-exposed mussels were absent in specimens after CNS treatment, in which the mantle histology resembled that of the controls. No effects were observed in mussels exposed to CNS alone. As further proof of CNS’ ability to remove Zn(II) from ASW, a significant reduction of >90% of Zn levels in ASW after CNS treatment was observed (from 6.006 to 0.510 mg L−1). Ecotoxicological evaluation confirmed the ability of CNS to remove Zn from ASW by showing a full recovery of Zn-induced toxicological responses to the levels of mussels exposed to ASW only (controls). An effect-based approach was thus proven to be useful in order to further support the environmentally safe (ecosafety) application of CNS for heavy metal removal from seawater.

scholarly journals Effects of hepatitis C virus NS3 protein on expression of heat shock protein 70 and Glypican3 as the markers of hepatocellular carcinoma

2021 ◽  
pp. 356-364
Keyword(s):  
Cell Proliferation ◽  
Hepatitis C ◽  
Cell Signaling ◽  
Signaling Pathways ◽  
Heat Shock Protein 70 ◽  
Negative Control Group ◽  
Negative Control ◽  
Control Group ◽  
Ns3 Protein ◽  
Cell Signaling Pathways

Background and Aims: Hepatitis C virus (HCV) infection is an important risk factor for the development of liver cancer. The HCV NS3 protein plays a key role in the virus life cycle and can affect normal cellular activities, such as cell proliferation, cell death, and cell signaling pathways. Moreover, it may influence malignancy development. Two cellular genes, heat shock protein 70 (HSP70) and Glypican3 (GPC3), that are assessed in this study, play important roles in the regulation of the cell signaling pathways, including cell proliferation. This study aimed to evaluate the effects of HCV NS3 protein on the expressions of these two genes in the Balb/C mouse model. Materials and Methods: This study was performed on three groups of male mice of Balb/C (n=8). The first group received NS3 plasmid, the second group received hepatitis B virus HBx plasmid, and the negative control group received distilled water. Two injections were administered via the tail vein, and after the last injection, RNA was extracted from the liver tissue. Next, the cDNA synthesis and real-time polymerase chain reaction for relevant genes were performed. Results: Findings revealed that the relative expression of the selected genes in the NS3 group was significant in comparison with the negative control group (P=0.0229 for GPC3 and 0.0020 for HSP70). However, there was no significant difference between the NS3 group and the HBx group (P=0.4516 for GPC3 and 0.6740 for HSP70). Conclusion: Results showed that NS3 protein may affect the increasing expression of the mentioned genes. Nevertheless, for more precise understanding, much more studies should be performed, such as evaluation of the effect of NS3 on other involved proteins in cell signaling pathways, studying other domains of NS3, performance of pathological and histological tests, usage of various experimental methods, assessment of the role of NS4A as a cofactor for NS3, and usage of vectors with more stability.

scholarly journals Up-Regulating ERIC by CRISPR-dCas9-VPR Inhibits Cell Proliferation and Invasion and Promotes Apoptosis in Human Bladder Cancer

2021 ◽  
Vol 8 ◽  
Author(s):  
Jiangeng Yang ◽  
An Xia ◽  
Huajie Zhang ◽  
Qi Liu ◽  
Hongke You ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Bladder Cancer ◽  
Urothelial Carcinoma ◽  
Cell Lines ◽  
Expression Patterns ◽  
Regulation Of Gene Expression ◽  
Negative Control Group ◽  
Negative Control ◽  
Control Group ◽  
Bladder Urothelial Carcinoma

LncRNAs are defined as non-coding RNAs that are longer than 200 nucleotides in length. The previous studys has shown that lncRNAs played important roles in the regulation of gene expression and were essential in mammalian development and disease processes. Inspired by the observation that lncRNAs are aberrantly expressed in tumors, we extracted RNA from Bladder urothelial carcinoma and matched histologically normal urothelium from each patient and bladder carcinoma cell lines. Then, we reversed transcribed them into cDNA.Last, we investigated the expression patterns of ERIC by the fluorescence quantitative PCR in bladder cancer tissues and cell lines. CRISPR-dCas9-VPR targeting ERIC plasmid was transfected into T24 and 5637 cells, and cells were classified into two groups: negative control (NC) and ERIC overexpression group. MTT assay, transwell assay, and flow cytometry were performed to examine changes in cell proliferation, invasiveness, and apoptosis. We found that the expression of ERIC was down-regulated in bladder urothelial carcinoma compared to matched histologically normal urotheliam. The differences of the expression of this gene were large in the bladder cancer lines. Compared with the negative control group, the ERIC overexpression group showed significantly decreased cell proliferation rate (t = 7.583, p = 0.002; t = 3.283, p = 0.03) and invasiveness (t = 11.538, p < 0.001; t = 8.205, p = 0.01); and increased apoptotic rate (t = −34.083, p < 0.001; t = −14.316, p < 0.001). Our study lays a foundation for further study of its pathogenic mechanism in bladder cancer.

scholarly journals DNA Integrity as a Potential Marker for Stool-based Detection of Colorectal Cancer

2003 ◽  
Vol 49 (7) ◽  
pp. 1058-1065 ◽  
Author(s):  
Kevin A Boynton ◽  
Ian C Summerhayes ◽  
David A Ahlquist ◽  
Anthony P Shuber
Keyword(s):  
Colorectal Cancer ◽  
Colonic Mucosa ◽  
Clinical Status ◽  
Negative Control Group ◽  
Negative Control ◽  
Control Group ◽  
Dna Integrity ◽  
Fecal Dna ◽  
Dna Fragments ◽  
Potential Marker

Abstract Background: Molecular genetic analysis of DNA in patient stools has been proposed for screening of colorectal cancer (CRC). Because nonapoptotic cells shed from tumors may contain DNA that is less degraded than DNA fragments from healthy colonic mucosa, our aim was to show that DNA fragments isolated from stools of patients with CRC had higher integrity than DNA isolated from stools of patients with healthy colonic mucosa. Methods: We purified DNA from the stools of a colonoscopy-negative control group and patients with CRC and examined the relationship between long DNA fragments and clinical status by determining stool DNA integrity, using oligonucleotide-based hybrid captures with specific target sequences in increasingly long PCR reactions (200 bp, 400 bp, 800 bp, 1.3 kb, 1.8 kb, 24 kb). DNA fragments obtained from CRC patients were compared with fragments obtained from colonoscopy-negative individuals for length and/or integrity. Results: DNA fragments isolated from CRC patients were of higher molecular weight (>18 bands detected of a total of 24 possible bands) than fragments isolated from fecal DNA of the colonoscopy-negative control group. Conclusions: The presence of long DNA fragments in stool is associated with CRC and may be related to disease-associated differences in the regulation of proliferation and apoptosis. An assay of fecal DNA integrity may be a useful biomarker for the detection of CRC.

Effect of HylocereusPolyrhizus Rind Extract Toward Interleukin-1β, Vascular Endothelial Growth Factor Expression, Endometriosis Implant Area

2017 ◽  
Vol 9 (08) ◽  
Author(s):  
YanuarEka P. ◽  
Hendy Hendarto ◽  
Widjiati .
Keyword(s):  
Vascular Endothelial Growth Factor ◽  
Growth Factor ◽  
Treatment Group ◽  
Negative Control Group ◽  
Negative Control ◽  
Control Group ◽  
Vascular Endothelial ◽  
Mice Model ◽  
Endothelial Growth Factor ◽  
Fruit Rind

Retrograde menstruation lead to I Kappa B Kinase (IKK) fosforilation in peritoneum macrophage and cause secretion of proinflammatory cytokine interleukin1β then stimulate endometriosis cell to produce Vascular Endothelial Growth Factor which lead to increasing of endometriosis lession seen as endometriosis implant area. Cytokine secretion was inhibited through prevention of NF-κB activation by dragon red fruit rind extract (Hylocereuspolyrhizus). The aim of this reserach is to know the effect of dragon red fuit rind extract with 0,25; 0,5; and 1 mg/g bodyweight dosage toward IL-1β, VEGF expression and implant area in endometriosis mice model. The design of this experiment was randomized post test only control group design.Endometrios mice model were made in 14 days and split into two group, positive control group and treatment group after two week negative control group and postive control group were given Na-CMC 0,5% solution consequetively, and treatment group were given dragon red fruit extract with different dosage. Signification number for IL-1β is p>0,05, signification number for VEGF is p>0,05, and implant area signification number is p>0,05. Administration of dragon red fruit rind extract can decrease IL-1β, VEGF, and implant area.

The Comparison of Ostecyte in the Pressure area and Tension area on Tooth Movement Because of Hyperbaric Oxygen Therapy

DENTA ◽  
2018 ◽  
Vol 12 (1) ◽  
pp. 34
Author(s):  
Arya Barahmanta ◽  
Muhammad Faizal Winaris ◽  
Pambudi Raharjo
Keyword(s):  
Hyperbaric Oxygen ◽  
Oxygen Therapy ◽  
Tooth Movement ◽  
Bone Remodelling ◽  
Orthodontic Tooth Movement ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Control Group ◽  
Pressure Area

<p><strong><em>Background:</em></strong><em> Orthodontic tooth movement is a </em><em>interaction prosess</em><em> of resorption and deposition of bone remodeling. Orthodontic tooth movement by mechanical strength causes changes in alveolar bone. Osteocyte is an essential cell to respond bone remodelling. Hyperbaric Oxygen Therapy affects production of osteocyte because it can release Reactive Oxygen Species (ROS) and Nitrid Oxide (NO).  <strong>Purpose: </strong>To determine the difference number  of osteocyte in pressure and tension area during tooth movement by adjuvant of Hyperbaric Oxygen 2,4 ATA during 7 days starting on day 8 to day 14. <strong>Materials and Methods</strong>: This research used Completery Randomized Control Group Post Test Only Design. 36 cavia cobaya (male)  were divided into 3 groups randomly : the negative control groups, positive control group, and treatment group. Preparat staining used Hematoxylin Eosin (HE) and calculated on microscop 1000x with 20 field of view. Data analyses used one way ANOVA and LSD test then compared each area by using paired T test. <strong>Result:</strong> The data showed that the treatment group (P=10,67) tension area has the highest number of osteocyte than  negative control group (K-=3,67), positive control (K+=7,42). In the pressure area showed that negative control group (K-=5,00) has the highest  than positive control group (K+=3,83) and treatment (P=3,25). <strong>Conclusion: </strong>Therapy HBO 2,4 ATA 7 days starting on day 8 to day 14 is could increase osteocyte in the tissue to stimulate process of bone remodelling.</em></p><pre><strong> </strong></pre><p><strong><em>Keywords:</em></strong><em> Hyperbaric Oxygen, Tooth movement, Bone remodeling, </em><em>Osteocyte</em><em></em></p><p><em> </em></p><p><strong><em>Correspondence:</em></strong><em> </em><em>Arya Brahmanta</em><em>, Department of Orthodonty, Faculty of Dentistry, Hang Tuah University, Arif Rahman Hakim 150, Surabaya, Phone 031-5945864, Email:</em><em> </em><a href="mailto:[email protected]"><em>arya.brahmanta</em><em>@</em><em>hangtuah.ac.id</em></a></p>

Effects of Papaya Leaf Extract (Carica papaya L.) on Cellular Proliferation and Apoptosis in Cervical Cancer Mice Model

2019 ◽  
Vol 17 (5) ◽  
pp. 265-275
Author(s):  
Y. Peristiowati ◽  
Y. Puspitasari ◽  
Indasah
Keyword(s):  
Cervical Cancer ◽  
Cell Proliferation ◽  
Hela Cells ◽  
Leaf Extract ◽  
Caspase 3 ◽  
Methanol Extract ◽  
Negative Control ◽  
Proliferation Index ◽  
Control Group ◽  
P53 Expression

This study is aimed at analyzing the anticancer properties of papaya leaf extract, specifically the inhibition of cell proliferation and apoptotic induction through nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) and p53 pathways. Twenty-five mice (Mus musculus), aged 2 months and weighing 20–30 g, was injected with 0.5 mg dexamethasone for 7 days. The mice were then injected intracutaneously with 1 ml of HeLa cells (8 × 106 HeLa cells/microliter). The mice were divided into five groups (5 each): negative control (P1) (5% CMC-Na, sodium carboxymethyl cellulose), treatment II (225 mg/kg BW (body weight) papaya leaves methanol extract), treatment III (450 mg/kg BW), treatment IV (750 mg/kg BW), and treatment PV (2 mg alcohol anticancer drug). Papaya leaf extract treatments were applied for 2 weeks. Then, the tumor tissue was isolated for hematoxylin and eosin staining. Immunohistochemical imaging was used to detect Ki-67, caspase-3, NF-κB, and p53 expression. Further analysis was undertaken using the ImmunoRatio software program. The results indicated that administration of papaya leaf methanol extract significantly increased the expression of NF-κB and p53 at a dose of 450 mg/kg BW. Our results also showed that the mice treated with 450 mg of papaya leaf extract per kg of BW (P3) had the largest increase of caspase-3 expression compared to the negative control group. Papaya leaf ethanol extract decreased the cancer cell proliferation index and increased apoptosis of cancer cells in animal models of cervical cancer; it may also work to increase NF-kB expression and expression of the p53 gene.

Antiurolithiatic effect of Cymbopogon Proximus, Alhagi Maurorum, on Sulfadimidine induced urolithiasis in male New Zealand rabbits

2019 ◽  
Vol 20 (1) ◽  
pp. 12-18
Author(s):  
Sameh El-Nabtity
Keyword(s):  
New Zealand ◽  
Intramuscular Injection ◽  
Negative Control Group ◽  
Negative Control ◽  
Control Group ◽  
Aqueous Extracts ◽  
Blood And Urine Samples ◽  
Group 2 ◽  
New Zealand Rabbits ◽  
Group 1

The present study aimed to investigate the prophylactic effect of Cymbopogon proximus and Alhagi maurorum on Sulfadimidine induced urolithiasis in rabbits . Thirty New Zealand male rabbits were allocated into six equal groups (each of five): Group (1) was used as a negative control. Group(2) were administered sulfadimidine (200mg/kg) by intramuscular injection.Groups(3) and (4) were administered sulfadimidine(200mg/kg) by intramuscular injection and 330mg/kg of Cymbopogon proximus alcoholic and aqueous extracts respectively orally.Groups(5) and (6) were administered sulfadimidine(200mg/kg) by intramuscular injection and 400mg/kg of Alhagi maurorum alcoholic and aqueous extracts respectively orally. The period of experiment was 10 days. Blood and urine samples were collected from rabbits on the 10th day. The results recorded a significant decrease in serum creatinine, urea, uric acid and crystalluria in Cymbopogon proximus and Alhagi maurorum groups compared to sulfadimidine treated group.We conclude that Cymbopogon proximus and Alhagi maurorum have a nephroprotective and antiurolithiatic effects against sulfadimidine induced crystalluria.

Evaluation of Salivary Vitamin C and Catalase in HIV Positive and Healthy HIV Negative Control Group

2017 ◽  
Vol 17 (2) ◽  
Author(s):  
Fatemeh Ahmadi-Motamayel ◽  
Samaneh Vaziri-Amjad ◽  
Mohammad Taghi Goodarzi ◽  
Jalal Poorolajal
Keyword(s):  
Vitamin C ◽  
Negative Control Group ◽  
Negative Control ◽  
Hiv Positive ◽  
Control Group ◽  
Hiv Negative
Sign in / Sign up

Export Citation Format

Share Document