A colorimetric method, based on the Kober reaction, was adapted for the determination of urinary estrogens during pregnancy. The method yields final volumes for direct measurements by a multichannel computer-controlled photometer. The speed of the analysis was increased so that 100 samples can easily be completed by one laboratory technician as triplicate analyses during one working day. A satisfactory accuracy and precision of the method were also achieved. The values were determined using urine samples from 1097 apparently healthy pregnant women.

Download full-text PDF

Source
http://dx.doi.org/10.1515/cclm.1977.15.1-12.271DOI Listing

Publication Analysis

Top Keywords

determination urinary
8
urinary estrogens
8
estrogens pregnancy
8
discrete multichanneal
4
multichanneal procedure
4
procedure chemical
4
chemical determination
4
pregnancy colorimetric
4
colorimetric method
4
method based
4

Similar Publications

Exposure to Secondhand Cannabis Smoke Among Children.

JAMA Netw Open

January 2025

Herbert Wertheim School of Public Health and Human Longevity Science, University of California, San Diego.

Importance: The degree that in-home cannabis smoking can be detected in the urine of resident children is unclear.

Objective: Test association of in-home cannabis smoking with urinary cannabinoids in children living at home.

Design, Setting, And Participants: This cross-sectional study used baseline data from Project Fresh Air, a 2012-2016 randomized clinical trial to reduce fine particulate matter levels.

View Article and Find Full Text PDF

Low magnesium (Mg) intake increases the risk of various diseases such as anxiety disorder, depression, and diabetes. However, a reliable biomarker of mild Mg deficiency due to low Mg intake has not yet been identified. We speculate that metabolomics will be effective for biomarker discovery because Mg can affect various metabolic processes in the body.

View Article and Find Full Text PDF

Objectives: We aimed to: (1) explore the effect of oral potassium supplementation on urinary potassium excretion, and (2) evaluate the value of urinary potassium-related indicators in distinguishing primary aldosteronism (PA) from non-PA patients.

Design And Methods: A prospective study of 20 patients with hypertension and hypokalemia caused by renal potassium loss between November 2023 and April 2024 was conducted. Demographic features, 24-hour urine collection before and after potassium supplementation were all collected.

View Article and Find Full Text PDF

Objective: To evaluate the effects of hysterectomy for benign uterine tumors on subsequent ovarian reserve, sexual function, and lower urinary tract symptoms (LUTS).

Methods: The present study was a prospective longitudinal analysis that recruited patients aged 35-45 years who underwent simple hysterectomy without oophorectomy for symptomatic benign uterine tumors. Anti-Müllerian hormone (AMH) and serum sex hormone profiles, including follicle-stimulating hormone (FSH), luteinizing hormone (LH), estradiol, progesterone, and total testosterone, were measured at four timepoints: before hysterectomy, and 3, 6, and 12 months postoperatively.

View Article and Find Full Text PDF

Background: Polycystic Ovarian Syndrome (PCOS) is an endocrine disorder associated with increased risk of kidney and liver damage. Current treatments have shown contradictory outcomes, and their long-term use causes unwanted side effects. could serve as a complementary medicine to current PCOS treatments.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!