{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T23:36:05Z","timestamp":1788305765820,"version":"build-2803163510"},"reference-count":54,"publisher":"Wiley","license":[{"start":{"date-parts":[[2015,1,1]],"date-time":"2015-01-01T00:00:00Z","timestamp":1420070400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"funder":[{"DOI":"10.13039\/501100004281","name":"Polish National Science Centre","doi-asserted-by":"crossref","award":["2012\/07\/N\/NZ4\/02055"],"award-info":[{"award-number":["2012\/07\/N\/NZ4\/02055"]}],"id":[{"id":"10.13039\/501100004281","id-type":"DOI","asserted-by":"crossref"}]},{"name":"Medical University of Bialystok","award":["2012\/07\/N\/NZ4\/02055"],"award-info":[{"award-number":["2012\/07\/N\/NZ4\/02055"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["International Journal of Endocrinology"],"published-print":{"date-parts":[[2015]]},"abstract":"<jats:p>Cryptorchidism is the most common congenital birth defect in boys and affects about 2\u20134% full-term male neonates. Its etiology is multifactorial.<jats:italic>Purpose<\/jats:italic>. To evaluate the serum bisphenol A (BPA) levels in boys with cryptorchidism and healthy boys and to assess the risk of environmental exposure to BPA using the authors\u2019 questionnaire. The data were acquired from a study on boys with cryptorchidism (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:mi>n<\/mml:mi><mml:mo>=<\/mml:mo><mml:mn>98<\/mml:mn><\/mml:math>) and a control group (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M2\"><mml:mi>n<\/mml:mi><mml:mo>=<\/mml:mo><mml:mn>57<\/mml:mn><\/mml:math>). Prior to surgery, all patients had BPA serum levels evaluated. The size, position, rigidity of the testis, and abnormality of the epididymis of the undescended testis were assessed. Parents also completed a questionnaire on the risks of exposure to BPA in everyday life.<jats:italic>Results<\/jats:italic>. The testes in both groups were similar in size. The turgor of the undescended testis in the group of boys with cryptorchidism was decreased. Free serum BPA level in cryptorchid boys and in the control group was not statistically significant (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M3\"><mml:mi>p<\/mml:mi><mml:mo>&gt;<\/mml:mo><mml:mn>0.05<\/mml:mn><\/mml:math>). The conjugated serum BPA level in cryptorchid boys and in the control group was statistically significant (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M4\"><mml:mi>p<\/mml:mi><mml:mo>\u2264<\/mml:mo><mml:mn>0.05<\/mml:mn><\/mml:math>). Total serum BPA level in cryptorchid boys and in the control group was statistically significant (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M5\"><mml:mi>p<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn>0.05<\/mml:mn><\/mml:math>). Serum total BPA level was related with a positive answer about problems with conception (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M6\"><mml:mi>p<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn>0.02<\/mml:mn><\/mml:math>).<jats:italic>Conclusion<\/jats:italic>. Our study indicated that high serum BPA was associated with cryptorchidism.<\/jats:p>","DOI":"10.1155\/2015\/973154","type":"journal-article","created":{"date-parts":[[2015,9,28]],"date-time":"2015-09-28T21:02:56Z","timestamp":1443474176000},"page":"1-8","source":"Crossref","is-referenced-by-count":40,"title":["Serum Bisphenol A Level in Boys with Cryptorchidism: A Step to Male Infertility?"],"prefix":"10.1155","volume":"2015","author":[{"given":"Marta Diana","family":"Komarowska","sequence":"first","affiliation":[{"name":"Department of Pediatric Surgery, Medical University of Bialystok, Ulica Waszyngtona 17, 15-274 Bialystok, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5723-6941","authenticated-orcid":true,"given":"Adam","family":"Hermanowicz","sequence":"additional","affiliation":[{"name":"Department of Pediatric Surgery, Medical University of Bialystok, Ulica Waszyngtona 17, 15-274 Bialystok, 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