Related Experiment Video

Updated: Aug 30, 2026

Modeling Encephalopathy of Prematurity Using Prenatal Hypoxia-ischemia with Intra-amniotic Lipopolysaccharide in Rats
07:36

Modeling Encephalopathy of Prematurity Using Prenatal Hypoxia-ischemia with Intra-amniotic Lipopolysaccharide in Rats

Published on: November 20, 2015

[Potential consequences of the sudden postnatal drop of estrogen levels in preterm neonates]

Péter Tóth1, Gábor Erdei, Barna Vásárhelyi

  • 1Semmelweis Egyetem Altalános Orvostudományi Kar, I. Gyermekklinika, és Gyermekgyógyászati és Nefrológiai Kutatócsoport, Magyar Tudományos Akadémia, Budapest.

Orvosi Hetilap
|October 10, 2003
PubMed

Insights

Estrogen supplementation may reduce risks of bronchopulmonary dysplasia and osteopenia in premature infants. Further research is needed to confirm the safety and effectiveness of this neonatal hormone therapy.

Area of Science:

  • Endocrinology and Neonatology
  • Reproductive Biology
  • Pediatric Physiology

Context:

  • Estrogens exert significant extragenital effects, impacting fetal development and homeostasis.
  • Premature infants often experience complications linked to abrupt withdrawal of in utero estrogen exposure.
  • These complications include reduced uterine volume, elevated atherogenic lipids, osteopenia, and inflammatory issues.

Purpose:

  • To evaluate the physiological effects of estrogen and progesterone supplementation in premature infants.
  • To investigate the potential of hormone therapy to mitigate adverse outcomes in preterm neonates.

Summary:

  • A pilot study assessed estrogen and progesterone supplementation in premature infants.
  • Preliminary findings suggest a potential reduction in bronchopulmonary dysplasia and osteopenia among treated infants.
  • The study highlights the need for further investigation into the efficacy and long-term safety of estrogen supplementation for preterm neonates.

Impact:

  • Provides preliminary evidence for the therapeutic potential of estrogen supplementation in neonatal care.
  • Identifies key areas for future research regarding hormone therapy in preterm infants.
  • Contributes to understanding the role of estrogens in neonatal development and disease prevention.

More Related Videos

A Rat Model of Mild Intrauterine Hypoperfusion with Microcoil Stenosis06:19

A Rat Model of Mild Intrauterine Hypoperfusion with Microcoil Stenosis

Published on: January 7, 2018

Related Concept Videos

Teratogenicity01:07

Teratogenicity

The ability of a drug to produce structural deformations and functional abnormalities in the developing embryo or the fetus is called teratogenicity, and the drug producing this effect is known as a teratogen. Teratogenic effects include stillbirth, miscarriage, intrauterine growth restriction, and neurocognitive delay. A teratogen may affect the embryo at different stages of development, which is important in determining the type and extent of the damage. During blastocyst formation, the early...
Menopause01:28

Menopause

Menopause, a natural biological process marking the end of a woman's fertility, typically occurs between the fifth and sixth decade of life. This phase is characterized by the exhaustion of the ovarian follicle pool, leading to less responsive ovaries despite the high levels of Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH). The consequential decrease in estrogen production results in symptoms like hot flashes, heavy sweating, headaches, hair loss, muscle pains, vaginal...
Ovarian Cycle01:27

Ovarian Cycle

The menstrual cycle includes a critical component known as the ovarian cycle, which undergoes two main phases each month—the follicular phase and the luteal phase. The follicular phase is variable and averaging around 14 days. Ovulation, triggered by a surge in luteinizing hormone (LH), marks the transition between the two phases. The second phase, the luteal phase, is relatively consistent, lasting approximately 14 days, and is marked by the activity of the corpus luteum. While a cycle length...
Gonadal and Placental Hormones01:24

Gonadal and Placental Hormones

The gonads, namely the testes in males and the ovaries in females, are pivotal in producing gonadal hormones that orchestrate the intricate processes of sexual development and reproduction.
In males, testosterone is the primary gonadal androgen. It plays a central role in the maturation of male reproductive organs — the penis and testes. Additionally, testosterone is instrumental in the development of secondary sexual characteristics — a deep voice as well as facial and pubic hair growth — and...
Oogenesis02:07

Oogenesis

In human women, oogenesis produces one mature egg cell or ovum for every precursor cell that enters meiosis. This process differs in two unique ways from the equivalent procedure of spermatogenesis in males. First, meiotic divisions during oogenesis are asymmetric, meaning that a large oocyte (containing most of the cytoplasm) and minor polar body are produced as a result of meiosis I, and again following meiosis II. Since only oocytes will go on to form embryos if fertilized, this unequal...
Development of the Oral Microbiota01:28

Development of the Oral Microbiota

The establishment of the oral microbiome begins before birth, challenging the long-held belief that the fetal oral cavity is sterile. The presence of oral microbes such as Streptococcus and Fusobacterium in amniotic fluid suggests that microbial exposure may occur in utero, potentially through translocation from the maternal oral or gastrointestinal tract. This early colonization primes the neonatal immune system and sets the stage for subsequent microbial succession. Maternal health,...