trans


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trans

 [tranz]
1. in organic chemistry, having certain atoms or radicals on opposite sides of a nonrotatable parent structure.
2. in genetics, denoting two or more loci, especially pseudoalleles, occurring on opposite chromosomes of a homologous pair. See alsocis.

trans

/trans / (tranz)
1. in organic chemistry, having certain atoms or radicals on opposite sides of a nonrotatable parent structure.
2. in genetics, denoting two or more loci occurring on opposite chromosomes of a homologous pair. Cf. cis.

trans

In chemistry, of two groups having the configuration of being on opposite sides of a ring or a double bond. Compare CIS.

trans,

pref. Latin prefix for
across.

trans

1. in organic chemistry, having certain atoms or radicals on opposite sides of a nonrotatable parent structure.
2. in genetics, having unlike members of a pseudoallelic, or closely linked, gene pair on the same member of a pair of homologous chromosomes. Compare cis.

trans acting
in molecular biology a sequence or regulatory protein that is produced on one DNA molecule and acts on another, e.g. a sequence on one chromosome produces a regulatory protein that regulates expression of a gene on another chromosome. See also cis acting.

Patient discussion about trans

Q. My mother had a chest pain and she was sent for a TEE. When do you need a TEE and when a normal echo is fine? My mother had a chest pain few weeks ago. we were sure its a heart attack and went to the ER. There the doctors did some tests and she was sent for a (trans thoracic echocardiogram) TEE. I want to know when do you need a TEE and when you can do just a normal echocardiogram because the TEE was very painful for her and we want to know if ther was a better way.

A. The main difference between TEE and normal echo is that in TEE u put the transducer directly in the esophagus. The transducer is the same and the idea is to put it as close as possible to the heart.
As far as I know there are some heart situations the TEE is better for diagnosis that normal echo. Maybe your mom had one of those situations?
I can recommend you to ask the ER doctor. he will probably be able to give a better explanation for his choice

More discussions about trans
References in periodicals archive ?
Borrowing from feminist methodology and written according to one of the key principles of 'trans studies', Trans/forming feminisms renders trans people the subjects of scholastic investigation rather than its objects.
After all the bad-mouthing of trans, it seems inexplicable that some trans fatty acids might be beneficial.
The FDA demanded that, beginning in 2006, all the food nutrition labels must list the amounts of trans fats.
Bunge Oils scientists have applied for a patent on a hydrogenation method using a novel catalyst to minimize trans fats.
In fact, the American Heart Association in 2000 published guidelines recommending that the total of all cholesterol raising fats--both trans and saturated--not exceed 10 percent of a person's daily calorie intake.
108 Ficino, excerpta 1, in Allen, 1984, 221, trans.
Monarch of the Square An Anthology of Muhammad Zafzaf's Short Stories, trans.
A single-serve South Beach Harvest Wheat Crust Grilled Chicken & Vegetable Pizza, for example, has just 3 1/2 grams of sat fat, no trans fat, 600 mg of sodium, and a whole-grain crust.
Both the City Council and Board of Supervisors had considered following New York City in trying to ban restaurants' use of trans fats.
Winner: 842d Trans Bn, Beaumont, TX Runner-up: 39th Trans Bn (MC), Kaiserslautern, Germany
Our list included only those foods that contain more than two grams of total fat, since they are the most likely to contain the most trans fats.
Now, while some researchers are conducting new studies to further investigate the role of trans fats in disease, others are learning how to make appealing foods with fewer trans fats.