Tag: "lactation" at biology news
Human Breast Milk Contains Obesity Hormone
...wly discovered hormone was in breast milk, because lactation
is an obviously important physiological transition for many women. Although the researchers found leptin in the milk, at this point they aren't sure what role the hormone plays for mothers and infants. "Like many hormones in breast milk, it is di...
A Longitudinal Study Of Calcium Homeostasis During Human Pregnancy And Lactation And After Resumption Of Menses
...intaining calcium homeostasis during pregnancy and lactation
and after the resumption of menses, a longitudinal... trimester of pregnancy (T1, T2, and T3), early in lactation
at 2 mo postpartum (EL), and 5 mo after resumption of menses. Intestinal calcium absorption was dete...
News Backgrounder: Duke Primate Center Successfully Fosters Mysterious Aye-Ayes
... found that a common drug used in humans to induce lactation
had alsobeen given to an orangutan at the Pittsburgh Zoo to induce lactation, so wedecided to try it on Morticia," said Williams. "After experimenting with thedosages, Morticia began to lactate and to nurse." Now, says Williams, Marvin is wit...
Folate Status During Lactation
Maternal folate status during extended lactation
and the effect of supplementalfolic acid. by Amy D...ce of folic acid supplementation through prolonged lactation
wasestablished in a study of 42 women consuming adequate dietary folate. During 6mo lactation, plas...
Breast cancer cells shown to migrate toward hormone source - novel mechanism for metastasis seen
...th and maturation ofbreast tissues as a prelude to lactation
during pregnancy. Data from severallaboratories, however, including the Penn team's, have indicated that prolactinalso stimulates the progression of breast cancer, although precise details ofits action have been elusive. The current study describes a...
Eating contaminated Great Lakes sport fish does not inhibit lactation, UB study finds
...ated sport fish from LakeOntario and the length of lactation
in nursing mothers. The research is part o...York State Angler Study and principal author ofthe lactation
study. She presented results here today (Sept. 6, 1999) at thejoint meeting of the International So...
Dairy scientist advances field of transgenics and knowledge of growth hormones
...to advance the understanding of milk synthesis and lactation
physiology and increase productivity in the dairy ...explains, "For a number of years, the focus of the lactation
research program has been to elucidate mechanisms of how hormones and growth factors influence the d...
Cell death during mammary involution
Pregnancy and lactation
induce dramatic changes to the function and morphology of the mammary gland, including proliferation of breast epithelial cells, elaboration of secretory ducts and alveoli, and onset of milk production. Once nursing ceases, all of these changes are ...
Key enzyme responsible for fat development discovered
...se mammary glands during the first few days after lactation
when the glands undergo radical changes from milk production to fat deposition. Plasma from people who lack the gene for plasma kallikrein was also introduced into mouse cell cultures, where the researchers discovered that this plasma kallikrein "kno...
UC Davis study finds breastfeeding may protect bones in teen-age mothers
...baby who is breastfeeding, I wanted to look at how lactation
specifically affects the teens bone health later i...rs of breastfeeding, but the results indicate that lactation
may actually protect a teenagers bone health," said Chantry. "This finding, coupled with the known h...
Hutchinson Center researchers first to induce state of suspended animation in model vertebrate organism
...implantation - and any further development - until lactation
stops." Zebrafish in the wild haven't yet been observed to undergo suspended animation, but the metabolic shutdown that Roth induces in his laboratory resembles the reversible state of limbo that has been observed in nature in other organisms. Roth a...
Got milk? Scientists discover key lactation gene
... oxidoreductase, or XOR for short, is required for lactation
in female mice. This previously unidentified role for XOR in lactation
reveals a possible genetic basis for the lactation
difficulties experienced by nearly 5% of women. X...
Indiscriminate nursing in communal breeders: A role for genomic imprinting
... the inability to recognize one's own young during lactation
is the result of costs incurred by recognition errors. In an article to appear in the March issue of Ecology Letters, researchers from Cambridge University now propose an alternative hypothesis based on sexual conflict theory and genomic imprinting. ...
High-producing dairy cows are not more susceptible to illness
...s study. Based on their production in the previous lactation
period, the researcher selected 18 high-producing cows from the herd at the experimental farm at the Institute for Animal Science and Health, Lelystad. She complemented this group with 18 cows from the experimental farm at the lower end of the produc...
JCI Table of Contents, November 3, 2003
...*********************** Stopping bone loss during lactation
Parathyroid hormonerelated protein (PTHrP) is secreted in mammary epithelial cells during lactation
and promotes maternal bone loss by increasing the rates of bone resorption. John Wysolmerski and col...
Climate linked to reproduction of right whales
...t least three years between births (a full year of lactation
after the previous birth, another year to eat heartily -- if they can -- and amass fat stores for the next pregnancy, then a yearlong gestation), Pershing observes. "We think we're seeing a one- to two-year time lag until poor feeding conditions tak...
Alcohol exposure in pre- and early post-natal stages may cause insulin resistance
... is important to understand such effects involving lactation
because alcohol consumption among nursing women is...trol group and in the group exposed to EtOH during lactation
had a birth weight greater than 6.0 g. Among male offspring exposed to EtOH during pregnancy, 12 had...