Roflumilast counteracts DMH-induced preneoplastic colon damage in albino Wistar rats

Objective: The study explored the chemoprophylactic potential of roflumilast against 1,2-dimethylhydrazine (DMH) actuated preneoplastic colon damage in albino Wistar rats. Methods: Animals were arbitrarily divided into five groups of six animals each. DMH was used to induce preneoplastic colon damag...

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Veröffentlicht in:Human & experimental toxicology 2020-11, Vol.39 (11), p.1545-1555
Hauptverfasser: Saeedan, AS, Rastogi, S, Ansari, MN
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Rastogi, S
Ansari, MN
description Objective: The study explored the chemoprophylactic potential of roflumilast against 1,2-dimethylhydrazine (DMH) actuated preneoplastic colon damage in albino Wistar rats. Methods: Animals were arbitrarily divided into five groups of six animals each. DMH was used to induce preneoplastic colon damage (20 mg/kg/7 days, subcutaneously, for 42 days). Roflumilast was administered subcutaneously at two doses (1 and 5 mg/kg/day, from day 28 to 42). At the end of the study, the animals were recorded for the electrocardiographic changes and heart rate variability (HRV) paradigms on 42nd day, using PowerLab system. Blood samples were collected from all the animals to measure hydrogen sulfide (H2S) and nitric acid. The colon tissue was dissected out and analyzed for inflammatory markers, biochemical parameters including, superoxide dismutase, thiobarbituric acid reactive substances, catalase, and glutathione reductase and histopathology. Results: DMH caused derangement of HRV factors, abnormal antioxidant markers, and elevated levels of inflammatory markers. H2S and nitric oxide levels upsurge in DMH-treated rats and promoted preneoplastic damage. Histopathologically, loss of crypts, goblet cells, and distorted lamina propria were observed in toxic group. Treatment with roflumilast was able to curtail down oxidative stress and inflammatory markers and stabilitate the hemodynamic derangements as well as was able to restore the normal architecture of colonic mucosa. Conclusion: The findings from the present study conclude that treatment with roflumilast positively modulates the preneoplastic colon damage.
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Methods: Animals were arbitrarily divided into five groups of six animals each. DMH was used to induce preneoplastic colon damage (20 mg/kg/7 days, subcutaneously, for 42 days). Roflumilast was administered subcutaneously at two doses (1 and 5 mg/kg/day, from day 28 to 42). At the end of the study, the animals were recorded for the electrocardiographic changes and heart rate variability (HRV) paradigms on 42nd day, using PowerLab system. Blood samples were collected from all the animals to measure hydrogen sulfide (H2S) and nitric acid. The colon tissue was dissected out and analyzed for inflammatory markers, biochemical parameters including, superoxide dismutase, thiobarbituric acid reactive substances, catalase, and glutathione reductase and histopathology. Results: DMH caused derangement of HRV factors, abnormal antioxidant markers, and elevated levels of inflammatory markers. H2S and nitric oxide levels upsurge in DMH-treated rats and promoted preneoplastic damage. Histopathologically, loss of crypts, goblet cells, and distorted lamina propria were observed in toxic group. Treatment with roflumilast was able to curtail down oxidative stress and inflammatory markers and stabilitate the hemodynamic derangements as well as was able to restore the normal architecture of colonic mucosa. 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Methods: Animals were arbitrarily divided into five groups of six animals each. DMH was used to induce preneoplastic colon damage (20 mg/kg/7 days, subcutaneously, for 42 days). Roflumilast was administered subcutaneously at two doses (1 and 5 mg/kg/day, from day 28 to 42). At the end of the study, the animals were recorded for the electrocardiographic changes and heart rate variability (HRV) paradigms on 42nd day, using PowerLab system. Blood samples were collected from all the animals to measure hydrogen sulfide (H2S) and nitric acid. The colon tissue was dissected out and analyzed for inflammatory markers, biochemical parameters including, superoxide dismutase, thiobarbituric acid reactive substances, catalase, and glutathione reductase and histopathology. Results: DMH caused derangement of HRV factors, abnormal antioxidant markers, and elevated levels of inflammatory markers. H2S and nitric oxide levels upsurge in DMH-treated rats and promoted preneoplastic damage. Histopathologically, loss of crypts, goblet cells, and distorted lamina propria were observed in toxic group. Treatment with roflumilast was able to curtail down oxidative stress and inflammatory markers and stabilitate the hemodynamic derangements as well as was able to restore the normal architecture of colonic mucosa. Conclusion: The findings from the present study conclude that treatment with roflumilast positively modulates the preneoplastic colon damage.</description><subject>1,2-Dimethylhydrazine</subject><subject>Albinism</subject><subject>Aminopyridines - pharmacology</subject><subject>Aminopyridines - therapeutic use</subject><subject>Animals</subject><subject>Anti-Inflammatory Agents - pharmacology</subject><subject>Anti-Inflammatory Agents - therapeutic use</subject><subject>Antioxidants</subject><subject>Antioxidants - pharmacology</subject><subject>Antioxidants - therapeutic use</subject><subject>Benzamides - pharmacology</subject><subject>Benzamides - therapeutic use</subject><subject>Catalase</subject><subject>Catalase - metabolism</subject><subject>Colon</subject><subject>Colon - drug effects</subject><subject>Colon - metabolism</subject><subject>Colon - pathology</subject><subject>Colonic Neoplasms</subject><subject>Colorectal cancer</subject><subject>Crypts</subject><subject>Cyclopropanes - pharmacology</subject><subject>Cyclopropanes - therapeutic use</subject><subject>Damage</subject><subject>Dimethylhydrazines</subject><subject>Glutathione</subject><subject>Glutathione reductase</subject><subject>Glutathione Reductase - metabolism</subject><subject>Goblet cells</subject><subject>Heart rate</subject><subject>Hemodynamics</subject><subject>Histopathology</subject><subject>Hydrogen sulfide</subject><subject>Hydrogen Sulfide - metabolism</subject><subject>Inflammation</subject><subject>Lamina propria</subject><subject>Lipoxygenase - metabolism</subject><subject>Male</subject><subject>Markers</subject><subject>Mucosa</subject><subject>Nitric acid</subject><subject>Nitric oxide</subject><subject>Nitric Oxide - metabolism</subject><subject>Oxidative stress</subject><subject>Oxidative Stress - drug effects</subject><subject>Phosphodiesterase 4 Inhibitors - pharmacology</subject><subject>Phosphodiesterase 4 Inhibitors - therapeutic use</subject><subject>Precancerous Conditions - chemically induced</subject><subject>Precancerous Conditions - drug therapy</subject><subject>Precancerous Conditions - metabolism</subject><subject>Precancerous Conditions - pathology</subject><subject>Prostaglandin-Endoperoxide Synthases - metabolism</subject><subject>Rats, Wistar</subject><subject>Reductases</subject><subject>Rodents</subject><subject>Superoxide dismutase</subject><subject>Superoxide Dismutase - metabolism</subject><subject>Thiobarbituric acid</subject><issn>0960-3271</issn><issn>1477-0903</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kE1LxDAURYMozji6dyUB19X3mjaZLGX8GGFEkBGXJU0T6dA2NWkX_ntbOioIrt7innseXELOEa4QhbgGyYHFAmOQDJGnB2SOiRARSGCHZD7G0ZjPyEkIOwDgMsVjMmNxGidLjnOyfXG26uuyUqGj2vVNZ7zSXaC3T-uobIpem4K23jTGtSNT6oGqXEMLVat3Q8uGqiovG0ffytApT73qwik5sqoK5mx_F-T1_m67Wkeb54fH1c0m0oynXZTzArllAoQRMYocrTByCTxGyAXL01wYrYVCjsoWqIxdgkg1S7Q1whop2YJcTt7Wu4_ehC7bud43w8ssTtggApmwgYKJ0t6F4I3NWl_Wyn9mCNk4Y_Z3xqFysRf3eW2Kn8L3bgMQTUAYRvj9-q_wCwJEees</recordid><startdate>202011</startdate><enddate>202011</enddate><creator>Saeedan, AS</creator><creator>Rastogi, S</creator><creator>Ansari, MN</creator><general>SAGE Publications</general><general>Sage Publications Ltd</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>7TK</scope><scope>7U7</scope><scope>C1K</scope><scope>K9.</scope><scope>NAPCQ</scope><scope>SOI</scope><orcidid>https://orcid.org/0000-0001-8580-3002</orcidid></search><sort><creationdate>202011</creationdate><title>Roflumilast counteracts DMH-induced preneoplastic colon damage in albino Wistar rats</title><author>Saeedan, AS ; Rastogi, S ; Ansari, MN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c365t-b6d16f3707e7217b1f7e9806210b73b5b7ecc7a161afd1aef8075c34cfe7fe993</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>1,2-Dimethylhydrazine</topic><topic>Albinism</topic><topic>Aminopyridines - pharmacology</topic><topic>Aminopyridines - therapeutic use</topic><topic>Animals</topic><topic>Anti-Inflammatory Agents - pharmacology</topic><topic>Anti-Inflammatory Agents - therapeutic use</topic><topic>Antioxidants</topic><topic>Antioxidants - pharmacology</topic><topic>Antioxidants - therapeutic use</topic><topic>Benzamides - pharmacology</topic><topic>Benzamides - therapeutic use</topic><topic>Catalase</topic><topic>Catalase - metabolism</topic><topic>Colon</topic><topic>Colon - drug effects</topic><topic>Colon - metabolism</topic><topic>Colon - pathology</topic><topic>Colonic Neoplasms</topic><topic>Colorectal cancer</topic><topic>Crypts</topic><topic>Cyclopropanes - pharmacology</topic><topic>Cyclopropanes - therapeutic use</topic><topic>Damage</topic><topic>Dimethylhydrazines</topic><topic>Glutathione</topic><topic>Glutathione reductase</topic><topic>Glutathione Reductase - metabolism</topic><topic>Goblet cells</topic><topic>Heart rate</topic><topic>Hemodynamics</topic><topic>Histopathology</topic><topic>Hydrogen sulfide</topic><topic>Hydrogen Sulfide - metabolism</topic><topic>Inflammation</topic><topic>Lamina propria</topic><topic>Lipoxygenase - metabolism</topic><topic>Male</topic><topic>Markers</topic><topic>Mucosa</topic><topic>Nitric acid</topic><topic>Nitric oxide</topic><topic>Nitric Oxide - metabolism</topic><topic>Oxidative stress</topic><topic>Oxidative Stress - drug effects</topic><topic>Phosphodiesterase 4 Inhibitors - pharmacology</topic><topic>Phosphodiesterase 4 Inhibitors - therapeutic use</topic><topic>Precancerous Conditions - chemically induced</topic><topic>Precancerous Conditions - drug therapy</topic><topic>Precancerous Conditions - metabolism</topic><topic>Precancerous Conditions - pathology</topic><topic>Prostaglandin-Endoperoxide Synthases - metabolism</topic><topic>Rats, Wistar</topic><topic>Reductases</topic><topic>Rodents</topic><topic>Superoxide dismutase</topic><topic>Superoxide Dismutase - metabolism</topic><topic>Thiobarbituric acid</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Saeedan, AS</creatorcontrib><creatorcontrib>Rastogi, S</creatorcontrib><creatorcontrib>Ansari, MN</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Neurosciences Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>Nursing &amp; Allied Health Premium</collection><collection>Environment Abstracts</collection><jtitle>Human &amp; experimental toxicology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Saeedan, AS</au><au>Rastogi, S</au><au>Ansari, MN</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Roflumilast counteracts DMH-induced preneoplastic colon damage in albino Wistar rats</atitle><jtitle>Human &amp; experimental toxicology</jtitle><addtitle>Hum Exp Toxicol</addtitle><date>2020-11</date><risdate>2020</risdate><volume>39</volume><issue>11</issue><spage>1545</spage><epage>1555</epage><pages>1545-1555</pages><issn>0960-3271</issn><eissn>1477-0903</eissn><abstract>Objective: The study explored the chemoprophylactic potential of roflumilast against 1,2-dimethylhydrazine (DMH) actuated preneoplastic colon damage in albino Wistar rats. Methods: Animals were arbitrarily divided into five groups of six animals each. DMH was used to induce preneoplastic colon damage (20 mg/kg/7 days, subcutaneously, for 42 days). Roflumilast was administered subcutaneously at two doses (1 and 5 mg/kg/day, from day 28 to 42). At the end of the study, the animals were recorded for the electrocardiographic changes and heart rate variability (HRV) paradigms on 42nd day, using PowerLab system. Blood samples were collected from all the animals to measure hydrogen sulfide (H2S) and nitric acid. The colon tissue was dissected out and analyzed for inflammatory markers, biochemical parameters including, superoxide dismutase, thiobarbituric acid reactive substances, catalase, and glutathione reductase and histopathology. Results: DMH caused derangement of HRV factors, abnormal antioxidant markers, and elevated levels of inflammatory markers. H2S and nitric oxide levels upsurge in DMH-treated rats and promoted preneoplastic damage. Histopathologically, loss of crypts, goblet cells, and distorted lamina propria were observed in toxic group. Treatment with roflumilast was able to curtail down oxidative stress and inflammatory markers and stabilitate the hemodynamic derangements as well as was able to restore the normal architecture of colonic mucosa. Conclusion: The findings from the present study conclude that treatment with roflumilast positively modulates the preneoplastic colon damage.</abstract><cop>London, England</cop><pub>SAGE Publications</pub><pmid>32524861</pmid><doi>10.1177/0960327120931165</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0001-8580-3002</orcidid></addata></record>
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subjects 1,2-Dimethylhydrazine
Albinism
Aminopyridines - pharmacology
Aminopyridines - therapeutic use
Animals
Anti-Inflammatory Agents - pharmacology
Anti-Inflammatory Agents - therapeutic use
Antioxidants
Antioxidants - pharmacology
Antioxidants - therapeutic use
Benzamides - pharmacology
Benzamides - therapeutic use
Catalase
Catalase - metabolism
Colon
Colon - drug effects
Colon - metabolism
Colon - pathology
Colonic Neoplasms
Colorectal cancer
Crypts
Cyclopropanes - pharmacology
Cyclopropanes - therapeutic use
Damage
Dimethylhydrazines
Glutathione
Glutathione reductase
Glutathione Reductase - metabolism
Goblet cells
Heart rate
Hemodynamics
Histopathology
Hydrogen sulfide
Hydrogen Sulfide - metabolism
Inflammation
Lamina propria
Lipoxygenase - metabolism
Male
Markers
Mucosa
Nitric acid
Nitric oxide
Nitric Oxide - metabolism
Oxidative stress
Oxidative Stress - drug effects
Phosphodiesterase 4 Inhibitors - pharmacology
Phosphodiesterase 4 Inhibitors - therapeutic use
Precancerous Conditions - chemically induced
Precancerous Conditions - drug therapy
Precancerous Conditions - metabolism
Precancerous Conditions - pathology
Prostaglandin-Endoperoxide Synthases - metabolism
Rats, Wistar
Reductases
Rodents
Superoxide dismutase
Superoxide Dismutase - metabolism
Thiobarbituric acid
title Roflumilast counteracts DMH-induced preneoplastic colon damage in albino Wistar rats
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