Progesterone is an important hormone responsible, among others, for maintaining pregnancy via inhibition of uterus muscles activity; thus, following its concentration levels in pregnant women is of immense importance in the endeavor to prevent premature birth. In this work, the nanostructured bismuth film electrode (nsBiFE) was studied for detection of progesterone in neutral medium. Due to the ability to accumulate progesterone at the nsBiFE, the adsorptive cathodic stripping voltammetry was beneficially exploited. The nsBiFE was prepared on the surface of a glassy carbon supporting electrode and several parameters influencing the detection of progesterone were investigated. The nsBiFE exhibited superior electroanalytical characteristics in comparison to other bismuth-based electrodes and unmodified glassy carbon electrode together with satisfactory response toward low concentrations of progesterone, which are consistent with clinically significant levels.
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http://dx.doi.org/10.3390/s18124233 | DOI Listing |
ACS Sens
January 2025
School of Materials Science and Engineering, Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou 510275, People's Republic of China.
Steroid hormones, especially progesterone (P), estradiol (E), and testosterone (T), are key bioactive regulators in various female physiological processes, including growth and development, ovulation, and the reproductive cycle, as well as metabolism and mental health. As lipophilic molecules produced in sex glands, these steroid female hormones can be transported through blood vessels into various body fluids such as saliva, sweat, and urine. However, the ultralow concentration of steroid hormones down to picomolar (pM) level necessitates great demands for ultrasensitive but low-cost analytic tools to implement accurate, point-of-care or even continuous monitoring in a user-friendly fashion.
View Article and Find Full Text PDFElife
January 2025
Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, United Kingdom.
One in ten women in their reproductive age suffer from polycystic ovary syndrome (PCOS) that, alongside subfertility and hyperandrogenism, typically presents with increased luteinizing hormone (LH) pulsatility. As such, it is suspected that the arcuate kisspeptin (ARN) neurons that represent the GnRH pulse generator are dysfunctional in PCOS. We used here in vivo GCaMP fiber photometry and other approaches to examine the behavior of the GnRH pulse generator in two mouse models of PCOS.
View Article and Find Full Text PDFJ Clin Med Res
December 2024
GME Research, Northeast Georgia Medical Center, Gainesville, GA, USA.
Background: Per American Cancer Society, breast cancer is one of the most prevalent causes of cancer-related mortality in women in the United States. Different organizations vary in their recommendations regarding frequency of mammograms, with the United State Preventive Service Taskforce recommending biennial screening and other organizations like American College of Radiology promoting annual screening. The purpose of this study was to analyze institutional data to compare breast cancer detection rates among women undergoing annual vs.
View Article and Find Full Text PDFJ Thromb Haemost
January 2025
Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China; National Clinical Research Center for Hematologic Disease, Beijing, China; Collaborative Innovation Center of Hematology, Peking University, Beijing, China; Clinical Research Center for Hematologic Disease, Beijing, China. Electronic address:
Background: Immune thrombocytopenia during pregnancy (PITP) is the most common cause of platelet reduction in early and mid-pregnancy. However, the pathogenesis of PITP is still unclear.
Objectives: To determine the characteristics of bone marrow mesenchymal stem cells (BM-MSCs) in PITP patients and to explore the associations between metabolites, the gut microbiota, and BM-MSCs in PITP.
PLoS One
January 2025
Department of Clinical Support Services, Division of Laboratory and Pathology Medicine, Uganda Cancer Institute, Kampala, Uganda.
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