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negative (neg)

Etymology: L, negare, to deny
1 (of a laboratory test) indicating that a substance or a reaction is not present.
2 (of a sign) indicating on physical examination that a finding is not present, often meaning that there is no pathological change.
3 (of a substance) tending to carry or carrying a negative chemical charge.



Patient discussion about neg

Q. is her2 positive more agressive than her2 negative? i know someone with her2 positive breast cancer and her doctor said it was more difficult to detect upon its return if it came back i want to know if it is true and what can she do to detect it earlier

A. Over-expression of her2/neu, a specific molecule in the breast cancer cell is indeed considered to convey worse prognosis, and suggest the need for chemotherapy and immunotherapy with Herceptin. However, the decision is much more complicated and should be made on case by case basis after consulting a professional.

Q. Rising PSA to 10 with two negative biospies? Expect cancer? 67 yrs old in good health otherwise.

A. High values don't always mean it's cancer. At 67 years old, you're prostate is most likely enlarging, resulting in the higher PSA results. And after two negative biopsies, it sounds like you're in the clear. Like Brandon said though, keep up with your regular check ups.

Q. Does the cooking have a negative effect on the protein content of the food? I have heard that high temperatures cooking breaks the protein, so does the cooking have a negative effect on the protein content of the food?

A. Yes. Proteins can be denatured by heat, but only when the protein structure is delicate or is exposed to extremely high temperatures for long time. You must remember that breaking of protein is the physical-chemical process where the physical or chemical structure of a protein is rearranged. So cooking will not reduce on the nutritive value of the food until it’s cooked at cooking temperatures.

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References in periodicals archive ?
17) Giulio Busini to Belisario Vinta, 16 April, 5 March and 13 May 1585, Negs.
We are pleased to join organizations who initiate programs that positively impact energy conservation and the environment," said John Grillo, President of NEGS.
NEGS recently completed its first OLS test and sale at the Downtown Minneapolis Hilton Hotel, and is currently testing the system in an upscale hotel chain in India.
BULLETIN BOARD: NEGS) today announced that it has entered into an agreement with I&I Group as the exclusive representative of NEGS Ozone Laundry System for India.
5 million pounds of linens each year, has agreed to allow potential customers of NEGS to see the Ozone Laundry System.
NEGS president John Grillo said, "We are always pleased to do business with repeat customers.
During the call NEGS President, John Grillo will discuss results from the three month test at a major US hotel chain and the Company's substantial progress in fiscal year 2007.
NEGS President John Grillo said, "I am excited to embark on this endeavor with iCapital.
NEGS has installed over 300 Ozone Laundry systems in skilled nursing facilities across the country.
Contract Awarded for air05431ph3 support services negs of engineering