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Which class of tissue graft is the least likely to be accepted by a patient's body?
Xenografts, which are tissue grafts taken from a different species, are typically the least likely to be accepted by a patient's body due to immune system rejection. This rejection occurs because the patient's immune system recognizes the xenograft as foreign tissue and mounts an immune response against it.
Why are tissues more easily transplanted than organs between people with a minimal risk of rejection by the recipient?
Tissues have fewer antigens than organs, making them less likely to trigger an immune response in the recipient. Additionally, tissues are less vascularized compared to organs, reducing the chance of immune system recognition and rejection. Lastly, tissues can often be transplanted in smaller amounts, decreasing the likelihood of immune rejection.
Why have researchers rejected the idea that DNA was not found in the first life forms?
Researchers have rejected the idea that DNA was not found in the first life forms because the ability to store genetic information and replicate it is essential for life as we know it. DNA provides a stable blueprint for the organization and functioning of cells, making it highly unlikely that life could have originated without a molecule with similar properties. Additionally, evidence from the study of early Earth conditions and the emergence of life supports the idea that DNA-like molecules were likely present in the first life forms.
Which Organ transplant are the most successful?
To a certain extent that depends upon the definition of "successful" - it could be considered to be "lowest mortality rate", "longest life expectancy after surgery", "most likely to result in a functioning graft (transplanted organ)". Depending on which criteria you use, the answer will be slightly different.Kidney transplants have the lowest mortality rate due to a combination of reasons. Primarily, when a kidney is transplanted, the recipient's original kidneys are not removed. It is simply a case of adding a third, which hopefully works. But in turn, this does mean that if the transplanted kidney does not work, the patient should not be considerably worse off than they were pre-transplant. At this stage they would go back on dialysis until another kidney was found.Another reason for a low mortality rate for kidney transplants compared to other organ transplants is the availability of living-related donors. This means that there are more kidneys available for transplantation, which in turn means that patients are marginally "healthier" when they receive a kidney transplant, compared to transplant recipients of other organs. The healthier the patient is, the better the outcome after transplant (but of course, a completely healthy patient would not need a transplant. It's all relative.)However, the "lifespan" of a transplanted kidney is lowerthan for other organs such as livers and hearts (and this is why the answer to your question is not clear-cut). To clarify, I mean lifespan of the transplanted organ is lower, not the lifespan of the person who received the transplant; retransplantation of a failing graft is quite commonplace. (At which point the first transplanted kidney would probably be removed and replaced by another transplanted kidney).The reason behind a transplanted kidney's reduced lifespan is because kidneys are directly responsible for having to filter out immunosuppressives and other medication a transplant recipient has to take. These medications are necessary to ensure the short-term health of the graft but in the long run they cause some kidney damage (regardless of what organ was transplanted). But the damaging effect of the drugs (called "nephrotoxicity") is slightly magnified in kidney transplant recipients.Next to kidneys, livers have the second lowest mortality rate of transplant. This is slightly remarkable, since there is not an (good) equivalent of "dialysis" for liver failure, meaning there is no fallback to help a patient's health to remain stable. By the time a patient is ill enough to reach the top of a waiting list for a liver or heart transplant, they are very ill indeed. And at this point it's quite extraordinary that the numbers of patients surviving the transplant surgery is as high as it is.
How do doctors determine who gets an organ transplant?
It's usually done by 'tissue-typing'. Each patient has numerous tests to determine blood type and other factors. The donor organ(s) are also thoroughly tested to ensure they go to the patient that's least likely to reject the transplant.
Who are likely donors of kidney for kidneys transplants?
The most likely kidney donors are immediate family.
How do you make a recipient filled with earth or sand?
First you take a recipient, then you fill him or her with earth or sand. Your recipient is not likely to be happy to receive this.
When are grats used for hemodialysis?
Grafts are often the access of choice when a hemodialysis patient has small veins that will not likely develop properly into a fistula.
How do you spell beneficry?
The likely word is the noun beneficiary (recipient, or heir).
Hirudo medicinalis is used to relieve pressure and restore circulation in tissue grafts where blood accumulation is likely such as severed fingers and ears What is Hirudo medicinalis?
Leech
Can a silver nose piercing be rejected by one's body?
it can be rejected but it isn't likely to happen. if you clean it regularly it shouldn't be rejected by any means. i don't know that much about silver and rejection. try using steel. :)
Why were lower casts more likely to convert to Buddhism?
Because Buddhism rejected the caste system.
What happens to a hypothesis that is not supported by data that has been collected and analyzed?
It's most likely to get rejected.
Which of these best describes the basis on which new scientific ideas are accepted or rejected?
New scientific ideas are typically accepted or rejected based on the evidence supporting them. Ideas that are consistent with experimental data and can be replicated by other researchers are more likely to be accepted. Conversely, ideas that lack evidence or are inconsistent with established scientific principles are more likely to be rejected.
How do you get the undisclosed recipient on Yahoo mail?
That information is protected by Yahoo, and would most likely require a court order.
How do you spell recipies?
The likely word is recipe (cooking plan).
How do you spell herress?
The likely word is heiress (female recipient of an inheritance).The similar word is the verb to harass (to bother or annoy).
