An infertility clinic uses ovarian stimulation to retrieve multiple oocytes. Which outcome is most likely if the luteinizing hormone (LH) surge is prematurely triggered?

💡 Explanation

Premature LH surge induces luteinization of granulosa cells before oocyte maturation is complete. This impairs fertilization because it disrupts normal follicular development, therefore luteinization occurs prematurely rather than at the appropriate time following ovulation. It does not directly impact FSH levels.

• If aggregated alpha-synuclein proteins accumulate within dopaminergic neurons of the substantia nigra, which consequence follows?
• A sound engineer monitors a concert with noise-canceling headphones. Why does prolonged exposure to frequencies exceeding 110 dB cause permanent hearing loss despite the noise cancellation?
• Which outcome results when C5 convertase dysfunction occurs in a localized infection?
• Which risk increases as desensitization to insulin rises in peripheral tissues due to prolonged exposure within a feedback loop?
• Why does tanning via melanogenesis offer limited protection against UVB-induced DNA damage, even as skin darkens?
• What distinguishes glycogen synthesis from gluconeogenesis in the liver during periods of hyperglycemia?