Cited by 261Hemoglobinopathies and Related DisordersErythrocyte Function and PathophysiologyHemoglobin structure and function

Irreversibly sickled erythrocytes: a consequence of the heterogeneous distribution of hemoglobin types in sickle-cell anemia

Open access
Bertles, John F., Milner, Paul F. A.·1968·Journal of Clinical Investigation

Abstract

THE AMOUNT OF FETAL HEMOGLOBIN (HB F) IN ERYTHROCYTES OF PATIENTS WITH SICKLE CELL ANEMIA (HB SS DISEASE) WAS MEASURED BY TWO METHODS: (a) photometry of individual cells stained for Hb F by the Kleihauer-Betke technique; and (b) chemical assay of alkali-resistant hemoglobin in cells distributed according to specific gravity by ultracentrifugation. Irreversibly sickled cells (ISC), which could be identified directly during photometry and which were found to gather in high concentration at the bottom of ultracentrifuged cell columns, contained significantly less Hb F than non-ISC. Cell content of total Hb was constant regardless of cell size, shape, or ultracentrifugal behavior: thus absolute amounts of Hb F and S varied reciprocally from cell to cell. In experiments designed to estimate age, at formation, and rate of destruction of ISC, Hb SS blood was incubated with selenomethionine-(75)Se (which labels reticulocytes) or (51)Cr (which labels erythrocytes at random) and reinfused. Sequential blood samples were separated by ultracentrifugation into fractions rich in reticulocytes, non-ISC, and ISC; and chronological changes in the specific activity of each fraction were determined. Analogous information was obtained from radioautography of sequential blood samples after reinfusion of whole blood labeled with amino acids-(3)H: this technique permitted direct visual characterization of labeled erythrocytes as ISC or non-ISC, all of which had been reticulocytes at the time of reinfusion. The transformation of non-ISC into ISC, presumably a manifestation of membrane damage, proved to begin soon after cell release from the marrow; and ISC subsequently underwent rapid removal from the circulating blood. IT IS THEREFORE APPARENT FROM THESE STUDIES THAT, IN HB SS DISEASE, RELATIVELY SMALL RECIPROCAL CHANGES IN THE AMOUNTS OF THE TWO MAJOR HEMOGLOBINS CARRY PREDICTIVE IMPORTANCE: (a) net synthesis of Hb F is least in erythroid cells destined to become ISC; and (b) these irreversibly deformed erythrocytes suffer preferential destruction.

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.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1172/jci105863

Cites

24 of 24 references verified0 citation errors · 0 not checkable

Statistics

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.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Improved F-cell survival is likely a result of HbF protecting the cell from HbS polymer-induced damage.

    “Improved F-cell survival is likely a result of HbF protecting the cell from HbS polymer-induced damage.[44][45][46][47]”

    From Fetal hemoglobin in sickle cell anemia (2020) · cites this paper as [44]

    The Discussion reports preferential survival of Hb SS erythrocytes with higher Hb F and a short lifespan for irreversibly sickled cells. The Abstract describes irreversible sickling as a presumed manifestation of membrane damage, but the paper does not identify HbS polymer-induced damage as the mechanism that HbF prevents. (LLM, conf=0.84)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. [24]24. Ham, T. H., and W. B. Castle. 1940. Relation of increased hypotonic fragility and of erythrostasis to the mechanism of hemolysis in certain anemias. Trans. Assoc. Am. Physicians. 55: 127.

Cited by

Sorted by citations

Authors
Bertles, J. F., & Milner, P. F. A.
Affiliations
St. Luke's-Roosevelt Hospital Center (US)
Venue
Journal of Clinical Investigation
Published
1968-08-01
Volume
47
Issue
8
Pages
1731-1741
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2143525427
Cited by
261
References
24
Citations by year
2026: 2 · 2025: 5 · 2024: 6 · 2023: 1 · 2022: 1 · 2021: 3 · 2020: 6 · 2019: 3 · 2018: 5 · 2016: 5 · 2015: 2 · 2014: 1 · 2013: 1 · 2012: 2
FWCI
5.82
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Whitehall Foundation
  • Medical Research Council
Topics
  • Health Sciences › Medicine › Genetics › Hemoglobinopathies and Related Disorders
  • Health Sciences › Medicine › Physiology › Erythrocyte Function and Pathophysiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Hemoglobin structure and function
Keywords
sickle cell disease, fetal hemoglobin, hemoglobin S, erythrocyte deformability, reticulocytes, erythrocyte destruction, erythrocyte membrane damage, hemoglobin synthesis, erythrocyte age, autoradiography, chromium-51
MeSH terms
Adult, Amino Acids, Anemia, Sickle Cell, Child, Chromium Isotopes, Erythrocyte Aging, Erythrocytes, Abnormal, Female, Hemoglobins, Abnormal, Humans, Male, Methionine, Photometry, Radioisotopes, Selenium, Tritium, Ultracentrifugation

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