Lack of Improvement of Sperm Characteristics in Obese Males After Obesity Surgery Despite the Beneficial Changes Observed in Reproductive Hormones View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2019-02-26

AUTHORS

Berniza Calderón, Lydia Huerta, Julio Galindo, José Manuel González Casbas, Héctor F. Escobar-Morreale, Antonia Martín-Hidalgo, José I. Botella-Carretero

ABSTRACT

BACKGROUND: Even though obesity surgery normalizes circulating testosterone concentrations in males with obesity-associated secondary hypogonadism, its impact on spermatogenesis remains controversial. We aimed to evaluate sperm characteristics in obese men after bariatric surgery as well as changes in reproductive hormones. METHODS: Twenty severely obese men (body mass index (BMI) ≥ 35 kg/m2) were evaluated before and 2 years after bariatric surgery. The serum was assayed for insulin, leptin, kisspeptin, and inhibin B, among other hormones. Homeostasis model assessment of insulin resistance (HOMA-IR) was estimated. We used World Health Organization reference values for sperm analysis. RESULTS: After surgery, serum total testosterone, calculated free testosterone, inhibin B, and kisspeptin increased, whereas fasting insulin, HOMA-IR, and leptin concentrations decreased. Despite these improvements, sperm volume showed a small decrease after surgery, while the rest of sperm characteristics remained mostly unchanged. Abnormal sperm concentration persisted in 60% of the patients. CONCLUSIONS: Sperm characteristics may not improve after bariatric surgery despite the beneficial changes of reproductive hormones. More... »

PAGES

1-6

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s11695-019-03798-4

DOI

http://dx.doi.org/10.1007/s11695-019-03798-4

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1112394600

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/30806913


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36 schema:description BACKGROUND: Even though obesity surgery normalizes circulating testosterone concentrations in males with obesity-associated secondary hypogonadism, its impact on spermatogenesis remains controversial. We aimed to evaluate sperm characteristics in obese men after bariatric surgery as well as changes in reproductive hormones. METHODS: Twenty severely obese men (body mass index (BMI) ≥ 35 kg/m2) were evaluated before and 2 years after bariatric surgery. The serum was assayed for insulin, leptin, kisspeptin, and inhibin B, among other hormones. Homeostasis model assessment of insulin resistance (HOMA-IR) was estimated. We used World Health Organization reference values for sperm analysis. RESULTS: After surgery, serum total testosterone, calculated free testosterone, inhibin B, and kisspeptin increased, whereas fasting insulin, HOMA-IR, and leptin concentrations decreased. Despite these improvements, sperm volume showed a small decrease after surgery, while the rest of sperm characteristics remained mostly unchanged. Abnormal sperm concentration persisted in 60% of the patients. CONCLUSIONS: Sperm characteristics may not improve after bariatric surgery despite the beneficial changes of reproductive hormones.
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