The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.
Enzymological determination of free carnitine concentrations in rat tissues
Open accessAbstract
Purified carnitine acetyltransferase was employed to catalyze the reaction:Carnitine+acetylCoA⇌acetylcarnitine+CoA. In the presence of a known excess of acetyl CoA, free CoA released was determined simultaneously in a coupled spectrophotometric assay. CoA formed was shown to be directly related to carnitine initially present. Rat tissue extracts were analyzed using this method, and μmoles of (–)-carnitine per gram dry weight were found to be 4.87 for heart; 3.14 for brown adipose tissue; 2.68 for skeletal muscle; 1.74 for testes; 1.26 for kidney; 0.55 for brain; and 0.051 for serum. The specificity and accuracy of the determinations are described.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Ellman, G. L. (1959) · Archives of Biochemistry and Biophysics · doi:10.1016/0003-9861(59)90090-6 · Cited by 26,311
Harris, R. S., & Thiman, K. V. (1948) · The American Journal of the Medical Sciences · doi:10.1097/00000441-194801000-00035 · Cited by 792
Properties of Partially Purified Carnitine Acetyltransferase
Fritz, I. B., Schultz, S. K., & Srere, P. A. (1963) · Journal of Biological Chemistry · doi:10.1016/s0021-9258(19)68001-4 · Cited by 220
Self-citationFraenkel, G., & Friedman, S. (1957) · Vitamins and hormones · doi:10.1016/s0083-6729(08)60508-7 · Cited by 114
The distribution of vitamin BT (carnitine) throughout the animal kingdom
Fraenkel, G. (1954) · Archives of Biochemistry and Biophysics · doi:10.1016/0003-9861(54)90064-8 · Cited by 59
Studies on the distribution of free carnitine and the occurrence and nature of bound carnitine
Mehlman, M. A., & Wolf, G. (1962) · Archives of Biochemistry and Biophysics · doi:10.1016/0003-9861(62)90160-1 · Cited by 38
Determination of carnitine in biological materials
Friedman, S. (1958) · Archives of Biochemistry and Biophysics · doi:10.1016/0003-9861(58)90393-x · Cited by 28
Cited by
Carnitine Deficiency of Human Skeletal Muscle with Associated Lipid Storage Myopathy: A New Syndrome
Engel, A. G., & Angelini, C. (1973) · Science · doi:10.1126/science.179.4076.899 · Cited by 512
Goncalves, R. L. S., Quinlan, C. L., Perevoshchikova, I. V., Hey-Mogensen, M., & Brand, M. D. (2015) · Journal of Biological Chemistry · doi:10.1074/jbc.m114.619072 · Cited by 329
Barnett, C., Costill, D. L., Vukovich, M. D., Cole, K. J., Goodpaster, B. H., Trappe, S. W., & Fink, W. J. (1994) · International Journal of Sport Nutrition · doi:10.1123/ijsn.4.3.280 · Cited by 107
Effects ofl-carnitine loading on the aerobic and anaerobic performance of endurance athletes
Marconi, C., Sassi, G., Carpinelli, A., & Cerretelli, P. (1985) · European Journal of Applied Physiology and Occupational Physiology · doi:10.1007/bf02335919 · Cited by 102
Mikhail, M. M., & Mansour, M. M. (1976) · Clinica Chimica Acta · doi:10.1016/0009-8981(76)90532-5 · Cited by 41
Metadata
- Authors
- Marquis, N. R., & Fritz, I. B.
- Venue
- Journal of Lipid Research
- Publisher
- Elsevier BV
- Published
- 1964-04
- Volume
- 5
- Issue
- 2
- Pages
- 184-187
- ISSN
- 0022-2275 (ISSN-L)
- OpenAlex
- W2305631747
- Cited by
- 316
- References
- 7
- FWCI
- 4.80
- Type
- journal article
- Language
- en
- Open access
- hybrid
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Enzymological determination of free carnitine concentrations in rat tissues. https://app.cochat.ai/papers/10.1016/s0022-2275(20)40236-6
- The paper
- Marquis, N. R., & Fritz, I. B. (1964). Enzymological determination of free carnitine concentrations in rat tissues. Journal of Lipid Research. https://doi.org/10.1016/s0022-2275(20)40236-6
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
