Cystatin C what are your levels?

[Alex K Chen]

They are super important see su in lee lab 

[Mike Lustgarten]

0.71
 

 

[Alex K Chen]

> Kidney Function Metabolic
>
>         eGFR
>         (mL/min/1.73m2)
>             135
>             Mar 2024
>             Range: >=60
>
> Kidney Function
>
> Kidney function tests are common lab tests used to evaluate how well the kidneys are working.
>
>         CYSTATIN C
>         (mg/L)
>             0.59
>             Mar 2024
>             Range: 0.52-1.31

Basically kidney function is better than that of a young child. But this is consistent with my other PhenoAge results... (and ultra low creatinine). I was really scared for a while b/c not ALL my biomarkers are ideal (GlycanAge is not ideal, but GlycanAge is not damage or inflammation and could be rapamycin-related)

====

> ### Design and methods
>
> Cystatin-C was measured in 536 healthy Greek children and adolescents (295 males and 241 females) using a nephelometric [immunoassay](https://www.sciencedirect.com/topics/medicine-and-dentistry/immunoassay). Additionally, the age, [body mass index](https://www.sciencedirect.com/topics/medicine-and-dentistry/body-mass-index) and blood pressure was recorded for each subject.
>
> ### Results
>
> Overall, the mean serum Cystatin-C level was 0.79 ± 0.10 mg/L. Cystatin-C was found to be statistically significantly lower in females than in males (p < 0.001) as well as in prepubertal children compared to adolescents (p < 0.001). Higher values of Cystatin-C were observed in subjects with increased BMI (p < 0.001). Neither systolic nor [diastolic blood pressure](https://www.sciencedirect.com/topics/medicine-and-dentistry/diastolic-blood-pressure) was found to significantly affect Cystatin-C levels.

But these ranges are comparable to those in ADULTS in https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6817201/ - regardless, my cystatin C is lower than the lowest value in that study so yay.

Edited March 22, 2024 by InquilineKea