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Tumor Discovery                                                             Mobile phone effects on testis



            2.5. Statistical analysis                          genes demonstrated statistically significant increases in

            The statistical analysis was conducted using IBM SPSS   fold changes within the study group (n = 10, P < 0.01).
            Statistics Version 20.0. The normal distribution of continuous   However, upon analyzing the interchangeability between
            variables was assessed using the Kolmogorov–Smirnov test.  the groups for other cytokines, no significant difference
                                                               was detected (P > 0.1).
              Continuous variables following a normal distribution
            were expressed as mean ± standard deviation, and the   3.3. Vitality analysis using flow cytometry (Annexin V)
            comparison between the two groups was performed using   A vitality assessment was conducted using flow cytometry.
            Student’s t-test. For continuous variables that did not fit   The vitality rates of both groups were similar (43.6 ± 14.2%
            a normal distribution, the data were reported as median   vs. 45.7 ± 15.6%, P = 0.709) (Figure 3).
            (minimum–maximum), and the comparison between
            groups was carried out using the Mann–Whitney U test.   3.4. Histopathological findings
            A significance level of 0.05 was adopted for all statistical   The tunica albuginea was significantly thinner in the
            analyses.                                          study group (22.3 ± 4.61  μM) than the control group
            3. Results                                         (87.4  ± 2.67  μM) (P  < 0.001). Seminiferous tubule
                                                               damage, interstitial edema, and Leydig cells were evaluated
            3.1. Testis weight and volume                      semiquantitatively. Seminiferous tubule damage was
            The median testis weight in the study group (163.0  g   significantly more pronounced in the study group (Figure 4,
            [133.0 – 183.0]) was significantly lower than the control   P < 0.001). While mild interstitial edema was present in
            group (179.0 g [134.0 – 195.0]) (P = 0.012). In addition, the   the control group (Figure  5A), it was significantly more
            median testis volume in the study group (0.95 cm  [0.800   severe in the study group (Figure 5B, P = 0.042). Leydig
                                                    3
            – 1.400]) was significantly reduced than the control group   cell counts were relatively higher in the control group
            (1.100  cm   [1.050  – 1.500])  (P  =  0.031).  Furthermore,   (Figure 5C) than in the study group (Figure 5D, P = 0.669).
                    3
            the median score for seminiferous tubule damage was   In addition, tunica albuginea thickness was significantly
            significantly higher in the study group (1.5  vs.  0.0,   greater in the control group (Figure 5E) than in the study
            P  < 0.001). The mean tunica albuginea thickness was   group (Figure 5F) (P < 0.001). SALL4 staining was utilized
            significantly reduced in the study group (22.3 ± 4.61 μM   for the detection of germ cell tumors. However, negative
            vs. 87.4 ± 2.67 μM) (P < 0.001) (Table 1).         SALL4 IHC staining was observed in the seminiferous
                                                               tubules (Figure 6).
            3.2. Changes in the gene expressions of IL-1, IL-4,
            IL-10, TNF-α, and IFN-γ                            4. Discussion
            The fold changes in the expression levels of the relevant   The present study aims to investigate the effects of
            gene in both the study and control groups were calculated   RF-EMR on testicular health. This investigation entails the
            using the 2-DDCt analysis and are presented in Figure 2.   measurement of gene expressions related to inflammatory
            The delta Ct values for expression analyses of the study   (IL-1, TNF-α, IFN-γ) and anti-inflammatory (IL-4, IL-10)
            and control groups after real-time PCR are shown in   cytokines in testis tissue, alongside histopathological
            Table 2. Notably, the expression levels of IL-4 and IFN-γ   examination. In addition, the study investigated whether


            Table 1. Testis sizes and histopathologic parameters
             Parameter                            Study group (n=10)  Control group (n=10)  Statistical test   p‑value
            Testis weight (median [min–max] g)    163.0 (133.0 – 183.0)  179.0 (134.0 – 195.0)  Z=−2.479  0.012
            Testis volume (median [min–max] cm )  0.95 (0.800 – 1.400)  1.100 (1.050 – 1.500)  Z=−2.174  0.031
                                     3
            Interstitial edema (median [min–max])   1.0 (0.0 – 3.0)     1.0 (0.0 – 1.0)   Z=−2.347      0.042
            Leydig cells (median [min–max])         1.0 (1.0 – 1.0)     1.0 (1.0 – 2.0)   Z=−1.549      0.669
            Johnson score (median [min–max])       10.0 (10.0 – 10.0)  10.0 (10.0 – 10.0)                N/A
            Seminiferous tubule damage (median [min–max])  1.5 (0.0 – 3.0)  0.0 (0.0 – 1.0)  Z=−4.102   <0.001
            Tunica albuginea thickness (mean ± SD μM)   22.3 ± 4.61     87.4 ± 2.67        F=3.145      <0.001
            Seminiferous tubule diameter (mean ± SD μM)  762.5 ± 83.4   775.7 ± 37.5       F=1.919      0.637
            Annexin V (mean ± SD %vitality)          43.6 ± 14.2        45.7 ± 15.6        F=0.006      0.709
            Abbreviation: SD: Standard deviation.


            Volume 3 Issue 1 (2024)                         4                          https://doi.org/10.36922/td.1703
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