What is the normal range for IGF-1?
What is the normal range for IGF-1?
reference range:
| Age (years) | IGF-1 Reference Range (ng/mL) |
|---|---|
| 20 | 95 – 380 |
| 21 – 25 | 85 – 350 |
| 26 – 30 | 85 – 310 |
| 31 – 35 | 70 – 280 |
How is IGF-1 measured?
IGF-1 measurements are adjusted for age because levels tend to decrease after puberty as you get older. Results of IGF-1 are given in nanograms per milliliter (ng/mL). Normal ranges vary by age.
Does IGF-1 expire?
Upon reconstitution, apportion into working aliquots and store at ≤ –20°C. Avoid repeated freeze/thaw cycles. Expiration Date: Expires one year from date of receipt when stored as instructed.
Does IGF-1 cause growth?
IGF-1 mediates many of the actions of GH, stimulates the growth of bones and other tissues, and promotes the production… Insulin-like growth factor-1 (IGF-1) is a hormone that, along with growth hormone (GH), helps promote normal bone and tissue growth and development.
What is a good IGF-1 level?
Low IGF-1 is considered by most to be between 84–100 µ/l and numerous studies recommend that raising IGF-1 to high normal range reverses Chronic Medical Diseases (CMD), improves bone mineral density (BMD), and fibromyalgia.
How do you reconstitute IGF LR3?
It is recommended to reconstitute LR3 IGF-1 at 100-200ug/ml in sterile water. Further dilutions can be made in other aqueous buffer. Centrifuge the vial prior to opening.
What should IGF-1 level be in cats?
An IGF-1 > 1000ng/ml (131nmol/L) is generally accepted as strongly suggestive of HST. Recently an enzyme linked assay for IGF-1 was validated in cats and was found to have a sensitivity of 100% and specificity of 88% at a cut-off of 997ng/ml. 5 If levels are 800-1000ng/ml, retesting is recommended.
How is IGF-1 measured in a blood test?
Levels of IGF-1 parallel those of GH. IGF-1 levels are therefore indicated in the: For adults, blood taken into a 5mL gold top tube (or rust top for the Acute Unit) For children, blood taken into a 3.5mL rust top tube
How old do you have to be to have IGF1?
Reference ranges Age (years) Female (nmol/L) Male (nmol/L) 0 – 2 2.2 – 12.8 1.6 – 12.5 3 – 5 5.7 – 24.2 3.5 – 17.6 6 – 9 10.6 – 40.0 8.2 – 30.8 10 14.7 – 52.1 11.2 – 44.9
Is the IGF-1 a good screening parameter for HST?
IGF-1 is a useful screening parameter due to the fact that it reflects 24-hour GH secretion, parallels changes in GH, is not pulsatile in nature (unlike GH) and is a sensitive marker for GH excess. An IGF-1 > 1000ng/ml (131nmol/L) is generally accepted as strongly suggestive of HST.