Related Experiment Video

Updated: Sep 29, 2026

Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
07:43

Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas

Published on: January 17, 2018

Subdermal levonorgestrel implants and pituitary function

M I Abdalla, M A Shafeek, M M Fayad

    Contraceptive Delivery Systems
    |September 1, 1983
    PubMed

    Keywords:
    Age FactorsAmenorrheaBiologyContraceptionContraceptive AgentsContraceptive Agents, FemaleContraceptive Agents, ProgestinContraceptive ImplantsContraceptive MethodsDiseasesEndocrine SystemFamily PlanningFollicle Stimulating Hormone--analysisGonadotropinsGonadotropins, PituitaryHormonesLevonorgestrelLuteinizing Hormone--analysisMenstruationMenstruation DisordersParityPhysiologyPituitary GlandPituitary HormonesProlactin--analysisReproductionReproductive Control Agents

    More Related Videos

    In Vitro Imaging and Quantification of the Drug Targeting Efficiency of Fluorescently Labeled GnRH Analogues10:36

    In Vitro Imaging and Quantification of the Drug Targeting Efficiency of Fluorescently Labeled GnRH Analogues

    Published on: March 21, 2017

    Development of Organoids from Mouse Pituitary as In Vitro Model to Explore Pituitary Stem Cell Biology09:48

    Development of Organoids from Mouse Pituitary as In Vitro Model to Explore Pituitary Stem Cell Biology

    Published on: February 25, 2022

    Related Concept Videos

    Hormones of the Pituitary Gland01:27

    Hormones of the Pituitary Gland

    The small, pea-sized pituitary gland is located at the base of the brain. It is crucial in regulating various bodily functions, from growth to reproduction. The gland is divided into the anterior lobe and the posterior lobe. The secretory cell clusters in the pars distalis of the anterior pituitary lobe are controlled by hypothalamic regulators and synthesize six primary hormones.
    The most abundantly secreted hormone from the anterior lobe is the growth hormone, which controls overall growth by...
    The Pituitary Gland01:17

    The Pituitary Gland

    The pituitary is a small endocrine organ in the sphenoid bone under the hypothalamus. Primarily, the pituitary in adults has two distinct anatomical and functional regions— the anterior and posterior lobes. During human fetal development, a third pituitary gland region called the pars intermedia atrophies and disappears. However, some of its cells migrate and exist adjacent to the anterior pituitary in adults.
    Intrauterine Drug Delivery Systems01:21

    Intrauterine Drug Delivery Systems

    Controlled-release systems for intravaginal and intrauterine drug delivery have been developed primarily for the administration of contraceptive steroid hormones. These delivery routes circumvent first-pass hepatic metabolism, thereby enhancing bioavailability and allowing for reduced systemic dosages compared to oral administration. Such approaches contribute to improved therapeutic efficacy and patient compliance, particularly in long-term contraceptive regimens.Intravaginal Drug Delivery...
    Glucagon-like Receptor Agonists01:24

    Glucagon-like Receptor Agonists

    Incretins include glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP), which stimulate insulin secretion post-meals. In type 2 diabetes, GIP's efficacy is reduced, making GLP-1 a viable drug target. GIP originates from preproGIP.
    GLP-1, when administered in high doses intravenously, triggers insulin secretion, inhibits glucagon release, slows gastric emptying, reduces food intake, and restores normal insulin secretion. However, its rapid inactivation by the...
    Major Hormones and Their Functions01:27

    Major Hormones and Their Functions

    Hormones, the biochemical messengers produced by endocrine glands, are pivotal in regulating bodily functions and maintaining homeostasis. Each hormone's balance is crucial; imbalances can lead to significant physiological disruptions. Major hormones include oxytocin, cortisol, epinephrine, estrogen, testosterone, thyroxine, growth hormone, insulin, and glucagon.
    Oxytocin, produced in the hypothalamus and released by the pituitary gland, plays a role in social bonding, childbirth, and lactation.
    Hormonal Regulation of the Menstrual Cycle01:22

    Hormonal Regulation of the Menstrual Cycle

    The ovarian cycle regulates endometrial changes throughout a single menstrual cycle via the coordinated action of gonadotrophin-releasing hormone (GnRH) and gonadotrophins.
    At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH release.