Chemotherapeutic effect of Berberis integerrima hydroalcoholic extract on colon cancer development in the 1,2-dimethyl hydrazine rat model

2016 ◽  
Vol 71 (7-8) ◽  
pp. 225-232 ◽  
Author(s):  
Mohammad R. Mohammadi Malayeri ◽  
Abolfazl Dadkhah ◽  
Faezeh Fatemi ◽  
Salome Dini ◽  
Fatemeh Torabi ◽  
...  
Keyword(s):  
Colon Carcinogenesis ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Aberrant Crypt Foci ◽  
Control Group ◽  
Histopathological Analysis ◽  
Colon Tissue ◽  
Hydroalcoholic Extract ◽  
Reducing Ability

Abstract The aim of this study was to investigate the efficacy of a Berberis integerrima hydroalcoholic extract as a chemotherapeutic agent in colon carcinogenesis in the rat induced by 1,2-dimethyl hydrazine (DMH). Male Wistar rats were divided into five groups: a negative control group without DMH treatment; a control group injected DMH (20 mg/kg b.w); two groups receiving B. integerrima extract (50 and 100 mg/kg b.w), concomitant with injected DMH, as chemotherapeutic groups; a positive control group receiving 5-fluorouracil (5-FU) along with DMH. The effects of the extracts were determined by assessment of hepatic malondialdehyde (MDA), glutathione (GSH), ferric reducing ability of plasma (FRAP), and the activities of hepatic glutathione S-transferase and cytochrome P450 (GST and CYP450). Additionally, colon tissues were assessed for colonic β-catenin and histopathological analysis. In DMH-treated rats, the extracts partially normalized the levels of FRAP, CYP450, β-catenin, and GST. Likewise, formation of aberrant crypt foci (ACF) in colon tissue of DMH-treated was reduced by the extracts. Thus, the extracts possess chemotherapeutic activity against colon carcinogenesis.

Prevention and therapy of 1,2-dimethyl hydrazine induced colon carcinogenesis by Ferula assafoetida hydroalcoholic extract / 1,2-dimetilhidrazin ile indüklenmiş kalın bağırsak kanserlerinin Ferula assa-foetida ekstraktı kullanılarak önlenmesi ve tedavisi

2015 ◽  
Vol 40 (5) ◽  
Author(s):  
Fatemeh Torabi ◽  
Abolfazl Dadkhah ◽  
Faezeh Fatemi ◽  
Salome Dini ◽  
Mohsen Taghizadeh ◽  
...  
Keyword(s):  
Colon Carcinogenesis ◽  
Negative Control Group ◽  
Negative Control ◽  
Detoxification Enzymes ◽  
Control Group ◽  
Hydroalcoholic Extract ◽  
Reducing Ability ◽  
Male Wistar Rats ◽  
Antioxidant Parameters ◽  
Ferula Assafoetida

AbstractObjective: In this study, we have evaluated the chemopreventive and chemotherapeutic effects of Ferula assa-foetida hydroalcoholic extract in 1, 2-dimethyl hydrazine (DMH) induced colon carcinogenesis.Methods: Male Wistar rats were divided into 6 groups: a negative control group without DMH; control group with injected DMH (20 mg/Kg b.w) and four groups receiving DMH +F. assa- foetida extract (6.25 and 12.5 mg/Kg b.w) as chemopreventive and chemotherapeutic groups. The effects of the extracts were assessed by estimating the hepatic oxidative stress/antioxidant parameters such as malondialdehyde, glutathione and ferric reducing ability of plasma (MDA, GSH, FRAP) and the detoxification enzymes; glutathione S-transferase and Cytochrome PResults: The results showed that the F. assa-foetida extracts markedly reversed the increased levels of CYPConclusion: The achieved results suggested the beneficial effect of the extracts on DMH metabolic processes in the colon indicating its chemopreventive and chemotherapeutic effects on colon carcinogenesis induced by DMH.

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>

Efek Ekstrak Etanol Kulit Petai (Parkia speciosa Hassk) Terhadap Penurunan Kadar Glukosa Darah Mencit Jantan

2018 ◽  
Vol 3 (1) ◽  
pp. 1
Author(s):  
Verawaty Verawaty ◽  
Dhea Claudia Novel
Keyword(s):  
Blood Glucose ◽  
Ethanol Extract ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Control Group ◽  
Male Mice ◽  
Glucose Levels ◽  
The Third ◽  
Blood Glucose Levels

<p>Penelitian ini bertujuan untuk melihat pengaruh pemberian ekstrak etanol kulit petai (Parkia speciosa Hassk) terhadap penurunan kadar glukosa darah mencit jantan yang diinduksi aloksan. Hewan percobaan dibagi atas 5 kelompok diantaranya kelompok kontrol negatif, kelompok kontrol positif,dosis I (280 mg/kgBB mencit), dosis II (560 mg/kg BB mencit), dosis III (840 mg/kg BB mencit). Penelitian dilakukan selama 21 hari. Persentase penurunan kadar glukosa darah mencit jantan setelah diberikan ekstrak etanol kulit petai pada hari ke-21 adalah dosis I (77,52 %) lebih besar dibandingkan dengan dosis II (69,5 %) dan dosis III (73,37 %). Data yang diperoleh dianalisis dengan uji Two Way Anova dengan program SPSS 17. Hasil penelitian ini menunjukkan bahwa pemberian ekstrak etanol kulit petai untuk tiga variasi dosis menyatakan perbedaan yang bermakna secara statistik terhadap penurunan kadar glukosa darah mencit jantan.</p><p><em>Petai (Parkia speciosa Hassk) has a compound β-sitosterol and stigmasterol that have efficacy to decreased blood glucose levels. This study aimed to determine the effect of ethanol extract of petai peel for decrease blood glucose levels of male mice induced by alloxan. Experimental animals were divided into 5 groups including negative control group, positive control group, the first dose (280 mg/kg in mice), the second dose (560 mg/kg in mice), the third dose (840 mg/kg in mice). The study was conducted for 21 days. After 21 days, the result found that the percentage of blood glucose levels after the male mice given the ethanol extract of petai peel was, the first dose (77.52%) biger than the second dose (69.5%) and the third dose (73.37%). The data obtained were analyzed by Two Way ANOVA using SPSS 17. The results showed that have signicantly difference between three dose variation of ethanol extract of petai peel in blood glucose levels.</em></p>

scholarly journals Resistance to Fracture of Dental Roots Obturated with Different Materials

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Berkan Celikten ◽  
Ceren Feriha Uzuntas ◽  
Kamran Gulsahi
Keyword(s):  
Fracture Resistance ◽  
Testing Machine ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Positive Control Group ◽  
Control Group ◽  
Root Canal Filling ◽  
Filling Materials ◽  
Group 2

The aim of this study was to compare the vertical fracture resistance of roots obturated with different root canal filling materials and sealers. Crowns of 55 extracted mandibular premolar teeth were removed to provide root lengths of 13 mm. Five roots were saved as negative control group (canals unprepared and unfilled). Fifty root canals were instrumented and then five roots were saved as positive control group (canals prepared but unfilled). The remaining 45 roots were randomly divided into three experimental groups (n=15root/group) and obturated with the following procedures: in group 1, glass ionomer-based sealer and cone (ActiV GP obturation system); in group 2, bioceramic sealer and cone (EndoSequence BC obturation system); and in group 3, roots were filled with bioceramic sealer and cone (Smartpaste bio obturation system). All specimens were tested in a universal testing machine for measuring fracture resistance. For each root, the force at the time of fracture was recorded in Newtons. The statistical analysis was performed by using Kruskal-Wallis and post hoc test. There were no significant differences between the three experimental groups. The fracture values of three experimental and negative control groups were significantly higher than the positive control group. Within the limitations of this study, all materials increased the fracture resistance of instrumented roots.

Ranitidine as an alcohol dehydrogenase inhibitor in acute methanol toxicity in rats

2009 ◽  
Vol 29 (2) ◽  
pp. 93-101 ◽  
Author(s):  
Amal A El-Bakary ◽  
Sahar A El-Dakrory ◽  
Sohayla M Attalla ◽  
Nawal A Hasanein ◽  
Hala A Malek
Keyword(s):  
Alcohol Dehydrogenase ◽  
High Performance ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Control Group ◽  
Sprague Dawley ◽  
Blood Samples ◽  
Methanol Poisoning ◽  
Sprague Dawley Rats

Methanol poisoning is a hazardous intoxication characterized by visual impairment and formic acidemia. The therapy for methanol poisoning is alcohol dehydrogenase (ADH) inhibitors to prevent formate accumulation. Ranitidine has been considered to be an inhibitor of both gastric alcohol and hepatic aldehyde dehydrogenase enzymes. This study aimed at testing ranitidine as an antidote for methanol acute toxicity and comparing it with ethanol and 4-methyl pyrazole (4-MP). This study was conducted on 48 Sprague-Dawley rats, divided into 6 groups, with 8 rats in each group (one negative control group [C1], two positive control groups [C2, C3] and three test groups [1, 2 and 3]). C2, C3 and all test groups were exposed to nitrous oxide by inhalation, then, C3 group was given methanol (3 g/kg orally). The three test groups 1, 2 and 3 were given ethanol (0.5 g/kg orally), 4-MP (15 mg/kg intraperitoneally) and ranitidine (30 mg/kg intraperitoneally), respectively, 4 hours after giving methanol. Rats were sacrificed and heparinized, cardiac blood samples were collected for blood pH and bicarbonate. Non-heparinized blood samples were collected for formate levels by high performance liquid chromatography. Eye balls were enucleated for histological examination of the retina. Ranitidine corrected metabolic acidosis (p = .025), decreased formate levels (p = .014) and improved the histological findings in the retina induced by acute methanol toxicity.

Effect of Chayote (Sechium Edule Jacq. Swartz) Extract on Level of Interleukin-8 in Wistar Rats with Aspirin-Induced Gastritis

2020 ◽  
Author(s):  
Hendrika Andriana Silitonga ◽  
◽  
Gontar Alamsyah Siregar ◽  
Rosita Juwita Sembiring ◽  
Marline Nainggolan ◽  
...  
Keyword(s):  
Ethyl Acetate ◽  
Wistar Rats ◽  
Ethanol Extract ◽  
Ethyl Acetate Fraction ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Interleukin 8 ◽  
Control Group ◽  
Sechium Edule

ABSTRACT Background: Recent studies showed that Interleukin-8 (IL-8), activated cytokine immune response which plays an important role in the development of acute and chronic gastritis. Harmless anti-inflammatory therapeutic alternatives have been proposed, for example, the consumption of Sechium Edule Jacq. Swartz (chayote). Antioxidant (flavonoid) and cell regeneration (alkaloid) agents were found in chayote. This study aimed to determine the effect of chayote Sechium Edule Jacq. Swartz extracts on the level of IL-8 in Wistar rats with aspirin- induced gastritis. Subjects and Method: This was a randomized controlled trial (RCT) conducted at the laboratory of Mathematics and Natural Science, Universitas Sumatra Utara from January to February 2020. A total of 35 male Wistar rats was selected for this study and randomly allocated into 7 groups: (1) Negative control; (2) Positive control; (3) 100 mg/ kg BW chayote ethanol extract ; (4) 200 mg/kg BW chayote ethanol extract; (5) 100 mg/ kg BW chayote ethyl acetate fraction; (6) 200 mg/kg BW chayote ethyl acetate fraction; and (7) 20 mg omeprazole. The rats in positive control and treatment groups were induced with aspirin (200mg/ kg BW). The negative control group received no intervention. The dependent variable was level of IL-8 measured by ELISA. The independent variables were treatment status. The data were analyzed by One Way Anova and post hoc test. Results: The mean differences of IL-8 level were not statistically significant between study groups (p= 0.327). Mean of IL-8 level was higher in positive control group (Mean= 160.80; SD= 6.90) than in negative control group (Mean= 141.20; SD= 10.98). The lowest IL-8 level was in 100mg/ kg BW chayote ethanol extract group (Mean= 149.94; SD= 40.4), followed by 200mg/ kg BW (Mean= 152.4; SD= 30.73) and 100mg/ kg BW (Mean= 164.60; SD= 25.04) chayote ethyl acetate fraction groups, 20 mg omeprazole group (Mean= 170.60; SD= 21.58), and 200 mg/ kg BW chayote ethanol extract group (Mean= 176.80; SD= 10.98). Conclusion: The low dose (100mg/ kg BW) chayote ethanol extract has the most potential antiinflammation effect on in vitro gastritis with the lowest IL-8 level of all doses of chayote ethanol extract, chayote ethyl acetate fraction, and omeprazole. Keywords: antiinflammation, IL-8, chayote ethanol extract, ethyl acetate fraction, omeprazole, aspirin induced gastritis Correspondence: Hendrika Andriana Silitonga. Department of Histology, Faculty of Medicine, Universitas Methodist Indonesia. Email: [email protected]. Mobile: +6281361430688. DOI: https://doi.org/10.26911/the7thicph.05.35

scholarly journals COCONUT MILK MODULATE THE ANTIGENICITY OF ALPHA-LACTALBUMIN IN BALB/C MICE

2017 ◽  
Vol 9 (3) ◽  
pp. 290 ◽  
Author(s):  
Yamina Benaissa ◽  
Samia Addou ◽  
Wafaa Dib ◽  
Omar Kheroua ◽  
Djamel Saidi
Keyword(s):  
Histological Study ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Coconut Milk ◽  
Cow’S Milk ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Group ◽  
Milk Formula ◽  
Cow's Milk

Objective: The aim of this work was to study the biochemical characteristics of coconut milk and its antigenic effect on the Balb/c mice immunized with α-lactalbumin protein, as well as its consequences on the structure of the intestinal epithelium.Methods: To achieve the objective of the study, an electrophoresis was realised on a polyacrylamide gel to determine various proteins contained in coconut milk. In addition, Lowry’s method was used to determine the amount of proteins in the formula. The antigenicity of coconut milk in sera was also studied using the Enzyme-Linked Immunosorbent Assay (ELISA) method. For the histological study, 21 w-old mice Balb/c were used and distributed in three groups of 7 mice each. Group 1, received a standard feed with no treatment (Negative control), group 2 and 3 received respectively a standard feed (Positive control) and coconut milk for a period of 28 d after being immunized with α- lactalbumin.Results: Analysis of the data revealed that the rate of proteins of cow’s milk is higher than that of the coconut milk ( p0.01). However, after carrying out the electrophoresis analysis, the coconut milk showed the absence of intact proteins. The anti α-Lactalbumin IgG titers significantly increased in positive control groups that received coconut milk (p<0.0001). Moreover, there was an increase of the intestinal villi height of mice fed with coconut milk, in the structure level of their intestinal epithelium compared to the negative control group.Conclusion: The findings of the study provide the evidence that coconut milk is a possible alternative to the cow’s milk formula in case of allergy.

scholarly journals Evaluation of the Sealing Ability of Three Obturation Techniques Using a Glucose Leakage Test

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Katarzyna Olczak ◽  
Halina Pawlicka
Keyword(s):  
Continuous Wave ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Control Group ◽  
Thermal Methods ◽  
Root Canals ◽  
Anterior Teeth ◽  
Sealing Ability ◽  
Significant Difference

The aim of this study was to evaluate the sealing ability of three different canal filling techniques. Sixty-four roots of extracted human maxillary anterior teeth were prepared using ProTaper® rotary instruments. The specimens were then randomly divided into 3 experimental groups (n=16) and 2 control groups (n=8). The root canals were filled using cold lateral compaction (CLC group), continuous wave condensation technique using the Elements Obturation Unit® (EOU group), and ProTaper obturators (PT group). For the negative control group, 8 roots were filled using lateral compaction as in the CLC group, and the teeth were covered twice with a layer of nail varnish (NCG group). Another 8 roots were filled using lateral compaction, but without sealer, and these were used as the positive control (PCG group). A glucose leakage model was used for quantitative evaluation of microleakage for 24 hours and 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12 weeks. No significant difference in the cumulative amount of leakage was found between the three experimental groups at all observation times. The lateral condensation of cold gutta-percha can guarantee a similar seal of canal fillings as can be achieved by using thermal methods, in the round canals.

scholarly journals Multi Floral Honey Has a Protective Effect against Mammary Cancer Induced by 7,12-Dimethylbenz(a)anthracene in Sprague Dawley Rats

2017 ◽  
Vol 9 (2) ◽  
pp. 196 ◽  
Author(s):  
Hamed R. Takruri ◽  
Maha S. Shomaf ◽  
Saida F. Shnaigat
Keyword(s):  
Protective Effect ◽  
Mammary Cancer ◽  
Histopathological Examination ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Control Group ◽  
Light Cycle ◽  
Sprague Dawley ◽  
Dark Light

This research was conducted to study the protective effect of bee honey on the 7,12-dimethylbenz(a)anthracene (DMBA)- induced breast cancer in rat model. The study consisted of three groups: honey group, positive control group (PC), and negative control group (NC) to which the carcinogen was not administered. All rats were fed the diet recommended by the American Institute of Nutrition for growing rats (AIN-93G), with addition of honey (50 g/kg diet) to the honey group. All Rats were fed their diets ad libitum on 12 hours dark/light cycle. At the age of 50 days all rats in the honey and PC groups were gavaged once by the carcinogen DMBA with a dose of 80 mg/kg body Wt. After three weeks of carcinogen administration, rats were palpated weekly to detect any tumor growth. After 18 weeks, all rats were sacrificed. The palpable structures and the mammary glands along with associated lymph nodes were removed and fixed in saline formalin and prepared for histopathological examination. The results revealed that the honey group diet significantly (p < 0.05) reduced the incidence rate of mammary cancer, palpable tumor multiplicity, tumor size and weight compared to the PC group. In conclusion, multi floral honey has a protective effect against DMBA- induced mammary cancer in the initiation, promotion, and progression stages of DMBA-induced mammary carcinogenesis. However, further research is needed to reveal the mechanisms that might have contributed to the preventive effect of honey against mammary cancer.

scholarly journals Efek Imunomodulator Ekstrak Etanol Spons Melophlus sarasinorum Terhadap Aktivitas Fagositosis Sel Makrofag Pada Mencit Jantan Balb/C

2019 ◽  
Vol 5 (2) ◽  
pp. 147-157
Author(s):  
Wahyuni Wahyuni ◽  
Muhammad Ilyas Yusuf ◽  
Fadhliyah Malik ◽  
Adryan Fristiohady Lubis ◽  
Astrid Indalifiany ◽  
...  
Keyword(s):  
Cell Activity ◽  
Ethanol Extract ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Control Group ◽  
Macrophage Cell ◽  
Macrophage Phagocytosis ◽  
Post Hoc ◽  
Phagocytosis Activity

Immunomodulator is an ingredient or drug that can modulate immune system functions and activities. This study was conducted to determine the effect of ethanol extract of Melophlus sarasinorum sponge on macrophage phagocytosis activity. Twenty four male mice balb/c were divided into six groups. The first group received 100 mg/kg of ethanol extract of Melophlus Sarasinorum sponge, the second group received 200 mg/kg of ethanol extract of Melophlus sarasinorum sponge, the third group received 300 mg/kg of ethanol extract of Melophlus Sarasinorum sponge and the fourth group received 400 mg/kg of ethanol extract of Melophlus Sarasinorum sponge. The positive control group received Phyllanthus niruri linn extract (Stimuno®) 0,13 mg/g and the negative control group received NaCMC 0,5%. The extract was orally administered from first day to seventh day. On the eighth day, each of the mice was injected Staphylococcus aureus bacteria (SA) 0.5 mL intraperitoneally. Macrophage cell activity is calculated from smears of peritoneal fluid of mice. Increased doses of ethanol extract of Melophlus sarasinorum sponge increase the amount of macrophage phagocytosis activity that are 25,25% (negative control), 61,5% (positive control), 55,75% (100 mg/kg), 60,75% (200 mg/kg), 62,25% (300 mg/kg) dan 66,25% (400 mg/kg). The results showed that the ethanol extract of Melophlus sarasinorum sponge has the potential as immunomodulator at a doses of 300 mg/kgBB and 400 mg/kg with no significantly different effectiveness with positive control in increasing macrophage cell phagocytosis activity based on the result of post-hoc statistical test of Tukey (sig.> 0,05).  

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