The present studies were designed to investigate whether prolactin (PRL) influences the secretion of oxytocin (OT) in lactating rats, and to test whether the previously reported inhibitory and stimulatory effects of dopamine-2 (D-2) agonists and antagonists, respectively, on OT release might be secondary to their respective inhibitory and stimulatory effects on the release of PRL. Intravenous administration of either rat (r) or ovine (o) PRL to lactating, nonsuckled rats increased basal plasma concentrations of OT. rGH was ineffective, but administration of oGH did produce some stimulation of OT release. Both oPRL and rPRL significantly enhanced the electrical stimulation-induced release of OT from isolated stalk-neurointermediate lobes, in vitro, without affecting the basal release of the peptide. oGH was ineffective on basal or stimulated in vitro OT release, and neither hormone altered basal or stimulation-induced release of vasopressin from these tissues. Both rPRL and oPRL reversed the inhibitory effect of the D-2 dopamine agonist bromocriptine. Immunoneutralization of circulating PRL with a highly specific antiserum abolished the increases in OT in response to either suckling or to administration of the D-2 dopamine antagonist domperidone.(ABSTRACT TRUNCATED AT 250 WORDS)
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http://dx.doi.org/10.1159/000125764 | DOI Listing |
J Hand Ther
January 2025
Goztepe Prof Dr Suleyman Yalcin City Hospital, Department of Neurology, İstanbul, Turkey; İstanbul Medeniyet University, Faculty of Medicine, İstanbul, Turkey.
Background: Intraneural edema is an important factor in the pathophysiology of carpal tunnel syndrome (CTS). Manual Lymphatic Drainage (MLD) is a manual treatment widely used to treat edema in a variety of conditions.
Purpose: This study aimed to evaluate the effect of MLD on intraneural edema of the median nerve in CTS patients, as well as its impact on symptom severity and hand function.
J Adv Res
January 2025
Agronomy College / National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou 450046 China. Electronic address:
Introduction: High-density Wheat 660 K and 90 K SNP arrays are powerful tools for understanding the genetic basis of wheat traits. However, their inconsistantly physical positions that were caused by different versions of Chinese Spring genome during developing arrays are confused and inconvenient for further application.
Objective: With the repid development of wheat geonome sequencing, we aim to reconciliate Wheat 660 K and 90 K SNP arrays in modern cultivar and reveal the genetic basis of dough rheological properties in bread wheat.
Immunol Lett
January 2025
First Affiliated Hospital of Guangxi Medical University, China. Electronic address:
(1) BACKGROUND: Metabolic abnormalities and immune inflammation are key elements within pathogenesis of pulmonary arterial hypertension (PAH). And in PAH patients, aberrant glutamine metabolism has been observed; however, the function of glutaminase 1 (GLS1) in macrophage is still unknown. So we aims to investigate GLS1's impact upon macrophages in PAH.
View Article and Find Full Text PDFExp Cell Res
January 2025
Translational Matrix Biology, University of Cologne, Medical Faculty, Cologne, Germany. Electronic address:
Fibroblast-like synoviocytes (FLS) are key cells promoting cartilage damage and bone loss in rheumatoid arthritis (RA). They are activated to assume an invasive and migratory phenotype. While mechanisms of FLS activation are unknown, evidence suggests that pre-damaged extracellular matrix (ECM) of the cartilage can trigger FLS activation.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
The College of Forestry, Beijing Forestry University, 100083, Beijing, PR China. Electronic address:
This study aims to address the challenge of detoxifying ginkgolic acid and transform it from waste into a valuable resource. By using pseudo-template molecular imprinting technology to chemically modify polysaccharide materials, we developed a polysaccharide-based molecular imprinted material (MMCC-CD/CS-MIP) for the targeted separation and controlled release of ginkgolic acid. Under optimal conditions, MMCC-CD/CS-MIP demonstrated excellent adsorption performance (Q = 47.
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