We're unable to sign you in at this time. Please try again in a few minutes.
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
Article |


Richard J. Glassock, MD
JAMA. 1987;258(16):2256-2258. doi:10.1001/jama.1987.03400160110027.
Text Size: A A A
Published online


The translation of new insights derived from fundamental research to the field of clinical nephrology is occurring at an increasing pace. Two recent developments directly stem from the revolution in biomedical science brought about by the remarkable tools of molecular biology. The first was cloning, in 1984, the gene responsible for the production of human erythropoietin,1,2 followed by its insertion into a mammalian cell-line vector, allowing large-scale synthesis of the pure harmone.3

Erythropoietin is a 166—amino acid polypeptide with molecular weight of 34 000 daltons, which is secreted as a glycosolated product.4 The anemia that accompanies chronic renal failure is primarily due to the kidneys' diminished synthesis and production of erythropoietin, which results in reduced bone-marrow red blood cell production. Shortened red blood cell survival, blood loss, intoxications such as lead or aluminum, and associated nutritional deficiencies may aggravate the anemia.5

Two clinical trials using recombinant human


Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?




Also Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
Please click the checkbox indicating that you have read the full article in order to submit your answers.
Your answers have been saved for later.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.


Some tools below are only available to our subscribers or users with an online account.

0 Citations

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

Related Content

Customize your page view by dragging & repositioning the boxes below.