follicular phase ↔ luteinizing hormone (LH)

Relations (1)

related 3.32 — strongly supporting 9 facts

The follicular phase is a specific stage of the menstrual cycle during which the secretion, pulse frequency, and amplitude of luteinizing hormone (LH) are regulated to stimulate egg growth and trigger ovulation, as described in [1], [2], [3], and [4].

Facts (9)

Sources

The Normal Menstrual Cycle and the Control of Ovulation - NCBI - NIH ncbi.nlm.nih.gov Feingold KR, Adler RA, Ahmed SF · National Center for Biotechnology Information 6 facts

measurementDuring the early follicular phase of the menstrual cycle, Luteinizing hormone (LH) secretion occurs at a pulse frequency of 60 to 90 minutes with a relatively constant pulse amplitude.

claimThe life span of the corpus luteum can be reduced by continuous Luteinizing hormone (LH) administration during the follicular or luteal phase, reduced LH concentration, decreased LH pulse frequency, or decreased LH pulse amplitude.

claimThe frequency and amplitude of LH secretion during the follicular phase regulates subsequent luteal phase function.

claimLuteinizing hormone (LH) levels are low during the early follicular phase of the menstrual cycle and begin to rise by the mid-follicular phase due to positive feedback from rising estrogen levels.

claimDuring the late follicular phase prior to ovulation, the pulse frequency of Luteinizing hormone (LH) secretion increases and the amplitude may begin to increase.

claimThe frequency and amplitude of Luteinizing hormone (LH) secretion during the follicular phase regulates subsequent luteal phase function.

Follicular Phase Of Menstrual Cycle - Cleveland Clinic my.clevelandclinic.org Cleveland Clinic 2 facts

claimHigh estrogen levels toward the end of the follicular phase trigger the pituitary gland to release a surge of luteinizing hormone (LH), which causes the mature egg to be released from the follicle and ovary during ovulation.

claimStarting in the late 30s, FSH levels may increase during the follicular phase while LH levels may fail to spike, potentially leading to the release of non-viable eggs.

Female Reproductive System: Structure & Function my.clevelandclinic.org Cleveland Clinic 1 fact

procedureDuring the follicular phase of the menstrual cycle, the brain releases follicle-stimulating hormone (FSH) and luteinizing hormone (LH), which travel through the blood to the ovaries to stimulate the growth of 15 to 20 eggs, each contained within a follicle.