TABLE 2
Common abbreviations and units that may be used without definition
Do not pluralize abbreviations
Statistical Abbreviations
analysis of covariance ANCOVA
analysis of variance ANOVA
coefficient of correlation, sample r
coefficient of determination, sample r2
coefficient of multiple correlation R
coefficient of multiple determination R2
coefficient of variation CV
confidence interval CI
degrees of freedom df
number of observations n
odds ratio OR
probability (level of significance) P
standard deviation SD
standard error of the estimate SEE
standard error of the mean SEM
statistical datum derived in Student's t test t
variance ratio F
General Abbreviations
acquired immunodeficiency syndrome AIDS
adenosine 5'-mono-, -di- and -triphosphates AMP, ADP and ATP
body mass index BMI
branched-chain amino acid BCAA
butylated hydroxytoluene BHT
coenzyme A CoA
complementary deoxyribonucleic acid cDNA
cyclic AMP (adenosine 3':5'-monophosphate), etc. cAMP, etc.
cytidine 5'-mono-, -di- and -triphosphates CMP, CDP and CTP
deoxyribonucleic acid or deoxyribonucleate DNA
Dulbecco’s modified Eagle medium DMEM
Enzyme Commission nomenclature number EC
enzyme-linked immunosorbent assay ELISA
ethylenediaminetetraacetate EDTA
ethyleneglycol-bis(β-aminoethyl)-N,N,N′ ,N′ -tetraacetic acid EGTA
fatty acid methyl esters FAME
flavin-adenine dinucleotide and its fully reduced form FAD and FADH2
food-frequency questionnaire FFQ
free fatty acid FFA
gas chromatography GC
gas-liquid chromatography GLC
guanosine 5'-mono-, -di- and -triphosphates GMP, GDP and GTP
Hanks’ balanced salt solution HBSS
high density lipoprotein HDL
N-2-hydroxyethylpiperazine N'-2-ethanesulfonic acid HEPES
human immunodeficiency virus HIV
high performance liquid chromatography HPLC
low density lipoprotein LDL
3-(N-morpholino) propanesulfonic acid MOPS
magnetic resonance imaging MRI
mass spectrometry MS
nicotinamide adenine dinucleotide and its oxidized and reduced forms NAD, NAD+ and NADH
nicotinamide adenine dinucleotide phosphate and its oxidized and reduced forms NADP, NADP+ and NADPH
nuclear magnetic resonance NMR
peroxisome proliferator-activated receptor PPAR
phosphate buffered saline PBS
polymerase chain reaction PCR
polyunsaturated fatty acid PUFA
radioimmunoassay RIA
red blood cell RBC
reverse transcriptase-polymerase chain reaction RT-PCR
riboflavin 5'-phosphate FMN
ribonucleic acid or ribonucleate RNA
saturated fatty acid SFA
short-chain fatty acid SCFA
sodium chloride/sodium citrate SSC
sodium dodecyl sulfate polyacrylamide gel electrophoresis SDS-PAGE
thin layer chromatography TLC
thiobarbituric acid reactive substances TBARS
ribosylthymine 5'-mono-, -di- and -triphosphates TMP, TDP and TTP
tris(hydroxymethyl)amino-methane Tris uridine 5'-mono-, -di- and -triphosphates UMP, UDP and UTP
ultraviolet UV
very low density lipoprotein VLDL
Miscellaneous
equation (use only with a number; e.g., Eq. 4) Eq.
experiment (use only with a number; e.g., Expt. 4) Expt.
for example e.g.
in other words; that is i.e.
inner diameter i.d.
intragastric (ally) i.g.
intramuscular (ly) i.m.
intravenous (ly) i.v.
optical density OD
outer diameter o.d.
versus vs.
volume:volume (use only with a ratio) (v:v)
weight:volume (use only with a ratio) (wt:v)
weight:weight (use only with a ratio) (wt:wt)
X-Ray X-ray
Institutional Abbreviations
American Chemical Society ACS
American Heart Association AHA
American Society for Nutrition ASN
Association of Official Analytical Chemists AOAC
Centers for Disease Control and Prevention CDC
Food and Agriculture Organization FAO
Food and Drug Administration FDA
National Health and Nutrition Examination Survey NHANES
National Institutes of Health NIH
National Research Council NRC
United Nations Children's Fund UNICEF
U.S. Department of Agriculture USDA
U.S. Pharmacopoeia USP
World Health Organization WHO
TABLE 3
SI prefixes
Factor Prefix Symbol
1012 tera T
109 giga G
106 mega M
103 kilo k
10-2 centi c
10-3 milli m
10-6 micro µ
10-9 nano n
10-12 pico p
10-15 femto f
10-18 atto a
TABLE 4
Common abbreviations
for units of measure
Do not pluralize; use only with values
Area and volume
liter L
microliter µL
milliliter mL
square centimeter cm2
square millimeter mm2
Units of concentration
micromolar (micromoles/liter) µmol/L
millimolar (millimoles/liter) mmol/L
molar (moles/liter)
Note: convert N (normal) to mol/L
mol/L
Units of length
centimeter cm
meter m
micrometer µm
millimeter mm
nanometer nm
Units of mass
dalton Da
gram g
kilogram kg
microgram µg
milligram mg
Units of time
day d
hour h
minute min
month mo
second s
week wk
year y
Other units
degree Celsius °C
micromole µmol
becquerel (disintegration per second) Bq
acceleration of gravity g
joule J
katal (mole per second) kat
kilobase kb
kilobase pair kbp
millimole mmol
mole mol
weight (e.g., 10g body wt) wt