They were able to show that when mice were inserted with ErythroMer, the artificial blood was able to deliver oxygen to tissues in the same way
as normal mice blood.
Another behavior that scientists have observed in Huntington's disease model mice is that they aren't as motivated
as normal mice to drink sweet water.
Treated SAMP8 mice could now remember as well
as normal mice.
The AS mice took longer to learn this task, but AS mice with reduced levels of the Na / K - ATPase subunit learned the task as fast
as normal mice.
Although the mice without Bax started out with the same number of oocytes
as normal mice, their ovaries harbored about three times as many oocyte - containing follicles shortly after puberty.
«The J20 / caspase -2 null mice showed the same dendritic spine density and morphology
as the normal mice — as opposed to the deficits in the J20 mice,» said co-lead author Julio Pozueta, PhD.
The researchers then placed the mutant mice, as well
as normal mice, in a chamber with a metal floor connected to an electrical source.
When these knockout mice were fed a high - fat diet, they gained as much weight
as normal mice did, but they managed to remain sensitive to insulin.
In a paper appearing online this week in the early edition of the journal Proceedings of the National Academy of Sciences, University of California, Berkeley, scientists who invented the photoswitch therapy and veterinary colleagues at the School of Veterinary Medicine of the University of Pennsylvania (UPenn) report that blind mice regained the ability to navigate a water maze as well
as normal mice.
Mice without FMRP buried marbles obsessively — roughly twice as many marbles
as normal mice.
In a study published October 30 in Neuron, the scientists show that mice genetically altered so they don't produce serotonin didn't scratch as much
as normal mice when exposed to irritants.
The mice had no apparent physical abnormalities, and they performed learning and motor tasks just as well
as normal mice.
So did mice treated with breast milk that were genetically engineered to have guts lacking receptors to EGF, as well
as normal mice treated with breast milk depleted of EGF.
That egg might develop
as a normal mouse or a knockout.
It functions
as a normal mouse but also has multitouch on top.
Not exact matches
Human females can live a
normal life span with the disease,
as can female
mice — the latter species also frequently becomes obese.
In contrast, control
mice expressing the
normal human prion sequence resisted infection when exposed to same materials — just
as humans seem to, even those who consume venison meat.
The behavioral tests used here modeled one dimension of the disease — an inability to experience pleasure from
normal activities — but not others, such
as stress and anxiety, and probably tap into different brain mechanisms in
mice than in humans, he says.
For this study the researchers targeted very specific types of GABA receptors to improve social behaviors with clonazepam, but the team also found that by using a different drug, they could target other GABA receptors and actually reduce the ability to socially interact in
normal mice — underscoring that future medications would need to target very specific receptors so
as not to diminish the drug's impacts.
Skin grafts of such transgenic
mice were rejected by
normal C57BL / 10
mice, suggesting that the foreign SLA antigen expressed in the transgenic
mice is recognized
as a functional transplantation antigen.
To test a nonpermanent approach, the team gave
normal female
mice the MIS protein
as a twice - daily shot.
Next, the researchers introduced into the bladders of the
mice either Lactobacillus crispatus, a
normal vaginal bacterium; G. vaginalis, which is associated with bacterial vaginosis; or sterile saltwater,
as a control.
In healthy
mice,
normal sperm line up at the center of a part of the testes known
as the seminiferous tubule, ready for release (left, arrows).
But unlike the
normal mice, those with altered macrophages showed no signs of inflammation, such
as changes in insulin production, high levels of immune chemicals, and macrophages in their belly fat.
Older modified male
mice metabolised sugar faster than
normal mice and females, suggesting that SIRT6 might extend life by protecting against metabolic disorders such
as diabetes.
The modified
mice had half
as much body fat
as normal, even when fed a high - fat diet.
Uhl and crew then produced
mice that had half the
normal number of opiate receptors and
as a result, experienced greater discomfort when exposed to a standard mildly painful stimulus.
When they next measured responses in the auditory regions of the brain, a more sensitive test, the
mice responded to much quieter sounds: 19 of 25
mice heard sounds quieter than 80 decibels, and a few could heard sounds
as soft
as 25 - 30 decibels, like
normal mice.
These engineered
mice see
as well
as their
normal counterparts but they lack ipRGCs.
Four days later, the livers of the non-supressed
mice had readjusted to a
normal daily rhythm,
as revealed by the daily rise and fall of liver - gene expression.
«When we switched off the support cells, the
mice licked the air in anticipation of the milk only half
as often
as normal,» Masmanidis said.
When the researchers examined
mice with disrupted IL - 27 function, they found that they were more likely than
normal mice likely to die when infected with the virus, and that they died
as a consequence of rampant lung inflammation.
By examining the brains of these
mice, the researchers observed a substantial decrease in inhibitory CA2 neurons,
as compared to a control group of
normal, healthy
mice — a change remarkably similar to that previously observed in postmortem examinations of people with schizophrenia.
These
mice lived just
as long
as semi-starved lean
mice, even though they had at least four times the body fat of
normal mice.
In those
normal mice, A-beta levels weren't
as high
as they were in the mutated
mice, but the fact that they existed was notable, says study coauthor Weihong Song of the University of British Columbia in Vancouver.
He and colleagues at the University of California, San Francisco, injected the brains of
mice with prions they had created in the lab by misfolding
normal prion protein, known
as PrP.
They found that at 6 months of age, these
mice had reduced capillary density and could run only half
as far
as normal 6 - month - old
mice.
The researchers then decided to see what would happen if they boosted sirtuin levels in
normal mice as they aged.
Even though the
mice appeared
normal in many ways, they were unable to tune down their responses to external signals such
as noises.
Given this finding, it was likely that
mice without gp96 would develop signs of inflammatory bowel disease
as they grew, unable to adapt to a
normal diet.
Some of the
mice were fed a
normal diet of «
mouse chow,»
as Shay calls it, containing 10 percent fat.
After LPS was added, the neutrophils in a
mouse lung deficient in CD11b crawled about a third of the distance
as the neutrophils in a
normal mouse lung.
Normal mice watching chronically itchy
mice in other cages increased their own scratching in
as little
as 5 seconds, whereas
mice placed near nonitchy
mice didn't show any increase in scratching, researchers report in Science.
Klebsiella pneumoniae is usually a
normal resident in the mouth of healthy individuals, but
as demonstrated in an experiment on specific pathogen - free
mice treated and untreated with the antibiotic ampicillin, they can colonize in the gut and activate TH1 cells when antibiotics disturb the gut microbial balance and weaken tolerance for the colonization of oral bacteria reaching the intestine.
Knocking out a particular gene in muscle lets
mice run twice
as far
as normal; knocking out the same gene in fat cells allows the animals to put on weight without developing type - 2 diabetes.
As a final test to see whether parasites could directly access the brain from the blood, the researchers infected
mice with a mixture of
normal parasites and mutants that was unable to reproduce, each labeled in different colors.
The team then administered progesterone inhibitors to
normal mice and found that the animals behaved much
as their knockout counterparts did.
As a result, they have less than half of the fat tissue found in
normal, aged
mice.
These
normal in vivo immune responses in IL -2-deficient
mice question the importance of IL - 2
as defined by in vitro studies.
Untreated 3xTg
mice displayed impaired learning and memory
as expected, but 3xTg
mice that were administered PD146176 for 3 months were indistinguishable from
normal mice in a memory test.