Medical Dictionary
Home -› T-helper cell

Online dictionary

Medical Categories

Definition Of:

T-helper cell

Bible DictionaryAids Glossary
The number of helpter T-lymphocytes in a patients blood, usually expressed as the number of cells per cubic millimeter. When this value drops below 200, the patient has AIDS. Also called t cell count.
 
A subset of T cells. Physicians regularly measure T-helper cell counts in HIV positive people. The normal range for T-helper cells is 480-1800, but may vary.
Bible DictionaryGlossary of HIV(AIDS) Terms
A type of white blood cell that activates T-killer cells and helps stimulate antibody production. Physicians regularly measure T-helper cell counts (CD4 counts) in HIV-positive people to monitor immune system function. The normal range for T-helper cells is 480-1800, but may vary in individuals. HIV first enters cells by attaching itself to the CD4 receptor on the surface of T-helper cells.
Bible DictionaryDictionary of Medicine
Immune cells that are triggered by antibodies to seek and attack invading organisms. Cells called macrophanges summon T-helper cells to the site of the infection and present a protruding antigen onto which the T-helper cell locks, thus "recognizing" the invading substance. The T4-helper cell then reproduces and secretes its potent lymphokine hormones that stimulate B-cell production of antibodies; signal "natural killer" or cytotoxic (cell-killing) T-cells; and summon more macrophanges to the site of the infection. T-helper cells are also called T4 cells and are normally twice as common as T8 cells. If a person has AIDS, the proportion of T4 to T8 cells is often reversed.

 

Medical Dictionary INDEX:


List of Terms: Terms beginning with "A", Page 1

Starts With:  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z µ 1 2 3 4 5 6 7 8 9
Page Number:  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

A: Page 1 of 33.

A
A & E
A Course in Mir...
A band
A&P
A-hydroCort
A.C.&C
A.E.
A.E.R.
A.P.L.
A.T.C.
A B Otic
A G
A O
A T S
A1AT
A1C
A2
A33
AA
AAA
AAAS
AABB
AACC
AACP
AACTG
AACTN
AAD
AADRC
AAFP
AAH
AAI
AAIAC
AAIDCRC
AAN
AAO
AAOS
AAOx3
AAP
AAPB
AAPMR
AAROM
AASLD
AAT
AAV
ABACAVIR
ABC
ABCA
ABCB
ABCD rating
ABCL
ABD
ABDOM
ABG
ABI-007
ABM
ABNT
ABO
ABO Antigens
ABO Blood Group
ABO Incompatibi...ABO blood groups
ABO system
ABP
ABT-510
ABT-751
ABVD
ABW
ABX-EGF
AC
AC and C
ACA
ACAI
ACAS
ACC
ACCESS (Access ...ACCOMMODATION
ACDP
ACDS
ACE
ACE Inhibitor
ACE inhibitor
ACE inhibitors
ACES
ACG
ACGIH
ACGM
ACIO
ACL
ACLS
ACMD
ACOG
ACOP
ACP
ACQUIRED IMMUNO...ACRE
ACT
ACTG
ACTG 076

Home   |   Online Translation  |   Dictionary   |   Contact Us   |   About Us   |   Site Map
Medical-Dictionaries.org
Copyright © 2008 Medical-Dictionaries.org. All rights reserved.