Related Experiment Video

Updated: Aug 14, 2026

Atomic Absorbance Spectroscopy to Measure Intracellular Zinc Pools in Mammalian Cells
13:04

Atomic Absorbance Spectroscopy to Measure Intracellular Zinc Pools in Mammalian Cells

Published on: May 16, 2019

Zinc and pregnancy outcome

C A Swanson1, J C King

  • 1Department of Nutritional Sciences, University of California, Berkeley 94720.

The American Journal of Clinical Nutrition
|November 1, 1987
PubMed

Total zinc needs during the last half of human pregnancy may be approximately 2.6 mg absorbed Zn/d. Adaptations in Zn utilization during pregnancy may help meet those needs. Possible adaptations include an increase in Zn absorption, reduced endogenous Zn loss, redistribution of tissue Zn, and an efficient maternal-fetal Zn transfer. A decline in circulating Zn concentration begins early in pregnancy and continues to term. The effect of gestational stage on circulating Zn should be incorporated into standards for serum Zn of pregnant women. Low maternal serum Zn levels have been associated with pregnancy-induced hypertension, abnormal parturition, and congenital anomalies. In studies done to date, Zn supplementation of 15-45 mg/d failed to improve pregnancy outcome except for a possible reduction in the incidence of a dysfunctional labor pattern. The relationship between Zn status and pregnancy outcome remains an open question.

More Related Videos

Assessing Mineral Availability in Fish Feeds using Complementary Methods Demonstrated with the Example of Zinc in Atlantic Salmon04:54

Assessing Mineral Availability in Fish Feeds using Complementary Methods Demonstrated with the Example of Zinc in Atlantic Salmon

Published on: October 29, 2021

Quantitating Iron Transport Across the Mouse Placenta In Vivo Using Nonradioactive Iron Isotopes08:45

Quantitating Iron Transport Across the Mouse Placenta In Vivo Using Nonradioactive Iron Isotopes

Published on: May 10, 2022

Related Concept Videos

Spermatogenesis01:41

Spermatogenesis

Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male reproductive...
Testing a Claim about Mean: Known Population SD01:11

Testing a Claim about Mean: Known Population SD

A complete procedure of testing the hypothesis about a population mean is explained here.
Estimating a population mean requires the samples to be distributed normally. The data should be collected from the randomly selected samples having no sampling bias. The sample size needed to be higher than 30, and most importantly, the population standard deviation should be already known.
In most realistic situations, the population standard deviation is often unknown, but in rare circumstances, when it...
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...
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,...