Pentao Liu at the Sanger Institute in Cambridge, UK, and his team developed the stem cells from cells taken
from early mouse embryos.
Not exact matches
Every baby girl loves Minnie
Mouse from an
early age on, so she'll be sure to love this precious hat as well.
Both
mouse and human males typically die
early from the mutation in Mecp2, because their Y chromosome does not supply a normal copy of the gene.
Using a computer - administered color test, the Neitzes demonstrated that the treated monkeys, like the
mice from the
earlier experiment, did indeed discriminate among colors.
The fourth group included offspring
from the
mice fed a high - fat diet that were fed the nutrient - enriched diet during
early life.
In this study, researchers analyzed ovarian tissue
from populations of reproductively «young» (equivalent to women in their
early twenties) and «old»
mice (equivalent to women ages 38 - 45).
In additional tests, the scientists found they could restore the norovirus infections by transplanting fecal material
from untreated
mice into
mice that
earlier had been treated with the antibiotics.
The
early - life STAT6 - IP treatment did not prevent the
mice from mounting an immune response to RSV and clearing the infection.
The scientists exposed a group of
mouse lemurs to moderate chronic caloric restriction (30 % fewer calories than their peers consuming a normal diet)
from the outset of
early adulthood (Restrikal cohort, see visuals below).
An
earlier study had identified the connection between the thalamus — a brain region that relays incoming signals
from the muscles and senses — and the dmPFC, along with the role this neural circuit can play in modifying a
mouse's desire for confrontation.
So
from our study using
mice, the correct time to eat more would be
earlier in the day.»
In contrast,
mice treated with IL - 27
early (starting at the day of virus infection) were doing poorly and did not recover
from the infection.
Nayernia says that researchers have produced the same
early - stage sperm cells in
mice from bone marrow cells taken
from female
mice.
Scientists
from the Memorial Sloan Kettering Cancer Center, US, have revealed a communication system between the knee joint and developing bones in
mice, which controls bone growth during
early development and after injury.
Early but not advanced forms of atherosclerotic plaques in the vessel wall disappear when the levels of «bad» cholesterol are lowered, according to a study in
mice from Karolinska Institutet, Sweden.
In
earlier studies, Wang and his colleagues had revealed that a gene in
mice called Pad4 (peptidylarginine deiminase 4) produces an enzyme that plays an important role in protecting the body
from infection.
The human
early embryo is so different
from the
mouse that it is almost «like starting over on a process that took more than ten years».
The researchers extracted mammary buds, the
early developing form of the mammary gland,
from 14 - day - old
mouse embryos, which is a critical time for mammary development in rodents, according to Speroni.
«When given to obese
mouse mothers during pregnancy and lactation, we found it protected their offspring
from developing symptoms of liver fat and damage that leads to NAFLD in
early adulthood.»
That ignition pattern differs
from the one that fires up
early mouse embryos, the research finds.
Beginning with
mouse egg cells, Daley and his team tricked these egg cells, or oocytes, into thinking they had been fertilized (a process called parthenogenesis) and managed to isolate embryonic stem cells
from the subsequent
early mouse embryos.
Earlier mouse studies by Li and his collaborators had indicated that the expression of several imprinted genes changes as hematopoietic stem cells embark on their journey
from quiescent reserve cells to multi-lineage progenitor cells, which form the many highly specialized cell types that circulate within the blood stream.
Renee Reijo Pera, a biologist at Stanford's Institute for Stem Cell Biology and Regenerative Medicine, points out that
earlier attempts to create offspring with sperm
from embryonic stem cells resulted in short - lived
mouse pups that were either giants or midgets.
Yes, using
mice in
early drug studies can spare human test subjects
from harm, which most people would argue justifies the frequently misleading findings.
JUMBLED The hippocampus (blue,
mouse brain shown) churns out neurons (white)
early in life that may disrupt memories
from infancy.
Niakan and colleagues predicted
from earlier work with
mice and human embryonic stem cells that the protein OCT4 would be necessary for the epiblast cells to develop correctly.
The team also showed that the increased «leakiness» of the blood - brain barrier, observed in germ - free
mice from early life, was maintained into adulthood.
Earlier this year, his lab brought in its own «dirty» colony
from a company that sells
mice as food for zoo animals.
Some researchers suspect that even stress, such as an
early separation
from the mother, can also change a
mouse's microbial ecosystem.
IN THE BEGINNING
Early embryos (a four - cell embryo shown)
from mice and humans look the same on the outside, but gene activity studies show some big differences under the hood.
When the researchers introduced these microRNAs into
mice prone to B - cell lymphoma, tumors formed far faster, and the
mice died
from their cancers
earlier than those without the molecules.
Earlier research by Rafi Ahmed of Emory University found that such viral infections in
mice stall the innate immune response by flicking on the PD - 1 switch, which keeps the T cells
from functioning.
Scientists at Georgia State University (GSU) with funding
from the National Institute of Biomedical Imaging and Bioengineering (NIBIB) have designed an imaging technique to detect
early - stage liver tumors, and have proven it successful in
mice.
By providing stable access to human shelter and food, hunter - gatherers led house
mice down the path to commensalism, an
early phase of domestication in which a species learns how to benefit
from human interaction.
Human amyloid precursor protein (hAPP) transgenic
mice from line J20, which carry mutations that cause
early - onset AD (7), show major deficits in this assay (8).
It suggests that the
early hunter - gatherer settlements transformed ecological interactions and food webs, allowing house
mice that benefited
from human settlements to out - compete wild
mice and establish themselves as the dominant population.
Mark Albers uses the olfactory system of
mice and humans to help understand the
early events of neurodegeneration in order to find ways to intervene
early in the disease process before symptoms appear and distinguish
early pathologic events
from changes produced by aging.
Accordingly, spleens were collected
from either naïve C57BL / 6 CD4 KO
mice or CD4 KO
mice that had rejected BALB / c corneal allografts 7 to 14 days
earlier.
Briefly, single - cell suspensions of splenocytes were prepared
from either experimental or control host strain
mice, as described
earlier.
A second method involves introducing the transgenic DNA into embryonic stem cells (ES cells) derived
from a
mouse embryo at the very
early stages of development.
The mESCs were isolated
from early - stage
mouse embryos, approximately four to six days post-fertilization (out of 21 days total for
mouse gestation).
In an operant test R6 / 2 transgenic
mice (240 - CAG repeats, B6 congenic background) were less able to acquire lever pressing than control animals at an age where motor function is only mildly affected (
from 9 weeks), with this deficit being both more pronounced and detected
earlier (
from 5 weeks) where reinforcement was not solely contingent on responding.
Their «reset cells» share many of the characteristics of authentic naive ES cells isolated
from mice, suggesting that they represent the
earliest stage of development.
While
earlier work has reported persistence of HIV in these cells — macrophages — investigators in this work developed a
mouse model with an immune system generated
from human cells but lacking T cells, which are a primary target of and reservoir for HIV.
Furthermore, in brains
from APP transgenic
mice conformation - specific antibodies have revealed the
early appearance of intraneuronal fibrillar and oligomeric Aβ immunoreactivity, which declined as amyloid plaques appeared, and further became evident in the extracellular space [10].
From earlier research, the scientists knew that these
mice showed no signs of inhibitory neuron death in the hippocampus, and their ability to learn and form memories was not impaired.
Embryonic Stem Cells: While bone marrow donor centers were being established in the 1980s, another stem cell family tree branch was developing that would draw much attention: Nearly 30 years ago, embryonic stem cells were isolated
from early - stage
mouse embryos.
For instance, MEF cells are usually made of fibroblasts
from the
mouse embryos at embryonic day 13.5 and only cells at
early passages (p2 to p3) are used as feeders for derivation and culture of embryonic stem (ES) and iPS cells.
A few interesting articles in
early life human microbiome, plus: A comparison between Staphylococcus epidermidis commensal and pathogenic lineages
from the skin of healthy individuals living in North American and India; A new tool to reconstruct microbial genome - scale metabolic models (GSMMs)
from their genome sequence; The seasonal changes in Amazon rainforest soil microbiome are associated with changes in the canopy; A specific class of chemicals secreted by birds modulates their feather microbiome; chronic stress alters gut microbiota and triggers a specific immune response in a
mouse model of colitis; and evidence that the short chain fatty acids profile in the gut reflects the impact of dietary fibre on the microbiome using the PolyFermS continuous intestinal fermentation model.
Researchers, funded by Cancer Research UK,
from the Section of Gene Function and Regulation and the Breakthrough Breast Cancer Research Centre at The Institute of Cancer Research (ICR), have pinpointed
early genetic changes that lead to cancer in
mice lacking the BRCA2 gene in their prostate gland.