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- W2153946693 abstract "Objectives To evaluate the acute effects of increased intra-abdominal pressure (IAP) on testicular germ cell apoptosis and the expressions of endothelial nitric oxide synthase (eNOS), inducible nitric-oxide synthase (iNOS), and Johnson's scores in testicular tissue. Materials and Methods Twelve male pigs weighing 52 to 55 kg were divided into 2 groups as group 1 (n = 6; gasless [control]) and group 2 (n = 6; 20 mm Hg IAP with CO2 pneumoperitoneum for 4 hours). In the second group, left laparoscopic nephrectomy was performed during the CO2 insufflation period. The right testes of pigs were removed. Testicular germ cell apoptosis, expressions of eNOS and iNOS, and Johnson's scores were evaluated for each group. Results The control group (group 1) exhibited low apoptotic cell level and low iNOS and eNOS level in testes. IAP (group 2) resulted in marked increases in germ cell apoptosis, eNOS, and iNOS compared with the control group (group 1) (P <.05). However, no significant difference was noted in Johnson's scores between the 2 groups (P >.05). Moreover, Leydig cell hyperplasia, congestion, and necrosis, which were not documented in the control group, were seen in the study group. Conclusions The purpose of the present study was to evaluate whether IAP could affect germ cell apoptosis and NOS concentrations in the testes after laparoscopic procedures in an animal model. In such an animal model simulating laparoscopic procedures, we demonstrated that high-pressure and long-lasting CO2 insufflation cause testicular changes in the acute period. To evaluate the acute effects of increased intra-abdominal pressure (IAP) on testicular germ cell apoptosis and the expressions of endothelial nitric oxide synthase (eNOS), inducible nitric-oxide synthase (iNOS), and Johnson's scores in testicular tissue. Twelve male pigs weighing 52 to 55 kg were divided into 2 groups as group 1 (n = 6; gasless [control]) and group 2 (n = 6; 20 mm Hg IAP with CO2 pneumoperitoneum for 4 hours). In the second group, left laparoscopic nephrectomy was performed during the CO2 insufflation period. The right testes of pigs were removed. Testicular germ cell apoptosis, expressions of eNOS and iNOS, and Johnson's scores were evaluated for each group. The control group (group 1) exhibited low apoptotic cell level and low iNOS and eNOS level in testes. IAP (group 2) resulted in marked increases in germ cell apoptosis, eNOS, and iNOS compared with the control group (group 1) (P <.05). However, no significant difference was noted in Johnson's scores between the 2 groups (P >.05). Moreover, Leydig cell hyperplasia, congestion, and necrosis, which were not documented in the control group, were seen in the study group. The purpose of the present study was to evaluate whether IAP could affect germ cell apoptosis and NOS concentrations in the testes after laparoscopic procedures in an animal model. In such an animal model simulating laparoscopic procedures, we demonstrated that high-pressure and long-lasting CO2 insufflation cause testicular changes in the acute period." @default.
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- W2153946693 date "2011-02-01" @default.
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- W2153946693 title "The Acute Effects of Increased Intra-abdominal Pressure on Testicular Tissue: An Experimental Study in Pigs" @default.
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- W2153946693 doi "https://doi.org/10.1016/j.urology.2010.06.009" @default.
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