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The Impact of Conventional Smoking Versus Electronic Cigarette on the Expression of Vegf, Pempa1, and Pten in Rat Prostate Publisher



Shabestari AN1 ; Tamehri Zadeh SS2 ; Zahmatkesh P2 ; Baghdadabad LZ2 ; Mirzaei A2 ; Mashhadi R2 ; Mesbah G2 ; Khajavi A3 ; Akbarzadehmoallemkolaei M4 ; Khoshchehreh M5 ; Rahimnia R6 ; Kazem Aghamir SM2
Authors
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Authors Affiliations
  1. 1. Department of Geriatric Medicine, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Urology Research Center, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Student Research Committee, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  4. 4. Animal Model Integrated Network (AMIN), Universal Scientific Education and Research Network (USERN), Tehran, Iran
  5. 5. Department of Pathology, University of California, Los Angeles, United States
  6. 6. Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran

Source: Prostate International Published:2023


Abstract

Background: The use of electronic cigarettes (e-cigarettes), the alternative to conventional smoking, is increasing considerably worldwide; however, their safety is a matter of debate. Several studies have demonstrated their toxic effects, but no study assessed their effects on the prostate. Objective: The current study aimed at evaluating e-cigarettes and conventional smoking prostate toxicity and effects on the expression of vascular endothelial growth factor A (VEGFA), phosphatase and tensin (PTEN), and prostate transmembrane protein androgen induced 1 (PMEPA1). Method: 30 young Wistar rats were categorized into three groups (n = 10) as follows: the control group, the conventional smoking group, and the e-cigarette group. The case groups were exposed to cigarettes or e-cigarettes for 40 minutes, 3 times a day for four months. Serum parameters, prostate pathology, and gene expression were measured at the end of the intervention. Data were analyzed by Graph Pad prism 9. Results: Histopathological findings presented that both types of cigarette-induced hyperemia and induced inflammatory cell infiltration and hypertrophy of smooth muscle of the vascular wall in the e-cigarette group. Expression of PMEPA1, and VEGFA genes significantly increased in conventional (2.67-fold; P = 0.0108, 1.80-fold; P = 0.0461 respectively) and e-cigarettes (1.98-fold; P = 0.0127, 1.34-fold; P = 0.938, respectively) groups compared to the control group. Expression of the PTEN gene non-significantly decreased in the case of groups compared to the control group. Conclusion: We found no significant differences between the two groups in terms of PTEN and PMEPA1 expression, whereas VEGFA was significantly more expressed in a conventional smoking group compared to the e-cigarette group. Therefore, it seems that e-cigarettes could not be taken into account as a better option than conventional smoking, and quitting smoking still is the optimal option. © 2022