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A total of 70 participants were assigned to four groups: smoking only, gutkha chewing only, both habits, and healthy controls. Salivary LDH isoenzymes showed significant decreases in LDH-1 and LDH-2 with an increase in LDH-4, alongside significant correlation across groups and higher buccal micronuclei in oral exfoliated cells. 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Group 1: 20 individuals having the habit of smoking, Group 2: 20 individuals having the habit of chewing gutkha, Group 3: 20 individuals having the habit of\u003Cbr>smoking and gutkha chewing, and Group 4: 10 healthy individuals.\u003Cbr>Results: In the present study showed that unstimulated whole saliva from group 1, group 2, and group 3 individuals, there was a significant decrease in isoenzymes LDH‑1 and LDH‑2 and there was no effect on LDH‑3 isoenzyme. In the present study, there is a significant increase in salivary isoenzyme LDH‑4 . The result indicated that there is an effect of carcinogen (tobacco)–enhanced activity on salivary LDH. The present study showed 70 volunteers reported a statistical significant correlation among the groups. The individuals with habit of smoking and gutkha chewing showed P value \u003C.001 with a significant increase in the isoenzyme LDH‑4. A significant increase in the buccal micronuclei of exfoliated cells in the oral mucosal cells of smokers and gutkha chewers. This shows a positive relationship between LDH isoenzymes and the individuals with the smoking and chewing of tobacco.\u003Cbr>Conclusion: There was a significant correlation between the levels of salivary LDH isoenzymes and cytomorphometric analysis of oral epithelium in smokers and gutkha chewers.\u003Cbr>Keywords: Gutkha chewers, LDH, malignant disorders, smokers |  |\n| Address for correspondence: Dr. Shivaratna Mediconda, Senior Resident at MNJ Cancer Hospital, Redhill, Hyderabad, Telangana, India.\u003Cbr>E‑[mail: marvelviks@gmail.com](mail: marvelviks@gmail.com)\u003Cbr>Submitted: 20‑Jan‑2023, Revised: 12‑Mar‑2023, Accepted: 15‑Mar‑2023, Published: 12‑Sep‑2023 |  |\n\nINTRODUCTION  \nOral cancer (OC) is one of the major global threats to public health. The development of OCis a tobacco‑related multistep and multifocal process involving field  \n\n| Access this article online |  |\n| --- | --- |\n| Quick Response Code: | Website:\u003Cbr>[https://journals.lww.com/JPAT/](https://journals.lww.com/JPAT/) |\n| |  |\n|  | DOI:\u003Cbr>10.4103/jomfp.jomfp_29_23 |\n\ncancerization and carcinogenesis. [1] Tobacco is regarded as one of the most potential carcinogen and available in various forms as smoke and smokeless.[2] The carcinogenic potential of tobacco is mainly attributed to its main  \nThis is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution‑NonCommercial‑ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non‑commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms.  \nFor [reprints contact:](reprints contact: WKHLRPMedknow_reprints@wolterskluwer.com)[ WKHLRPMedknow_reprints@wolterskluwer.com](reprints contact: WKHLRPMedknow_reprints@wolterskluwer.com)  \nHow to cite this article: Mediconda S, Abidullah M , Velidandla S. To evaluate the role of lactate dehydrogenase as biomarker in the progression of potentially malignant disorders in smokers and gutkha chewers. J Oral Maxillofac Pathol 2023;27:601 .  \n© 2023 Journal of Oral and Maxillofacial Pat","cbCaivOVgcIKhy8c","https://ap.wps.com/l/cbCaivOVgcIKhy8c","pdf",1982442,"English","# Abstract\n## Aim\n## Materials and Methods\n## Results\n## Conclusion\n# Introduction","[{\"question\":\"What is the study aiming to evaluate?\",\"answer\":\"To evaluate the role of lactate dehydrogenase (LDH) as a biomarker in the progression of potentially malignant disorders in smokers and gutkha chewers.\"},{\"question\":\"How were participants grouped in the study?\",\"answer\":\"Seventy individuals were divided into four groups: smokers only (20), gutkha chewers only (20), both smokers and gutkha chewers (20), and healthy controls (10).\"},{\"question\":\"What key LDH findings were reported?\",\"answer\":\"Significant decreases were reported in LDH-1 and LDH-2 in saliva, no effect on LDH-3, and a significant increase in salivary LDH-4, with significant correlations among groups.\"}]","To evaluate the role of lactate dehydrogenase as biomarker in the progression of potentially malignant disorders in smokers and gutkha chewers - Aim, Materials and Methods, Results, Conclusion | PDF",1790247583,23]