Serotonin-estrogen interactions: what can we learn from pregnancy?

Serotonin-estrogen interactions: what can we learn from pregnancy? Biochimie. 2019 Apr 01;: Authors: Hudon Thibeault AA, Sanderson JT, Vaillancourt C Abstract We have reviewed the scientific literature related to four diseases in which to serotonin (5-HT) is involved in the etiology, herein named 5-HT-linked diseases, and whose prevalence is influenced by estrogenic status: depression, migraine, irritable bowel syndrome and eating disorders. These diseases all have in common a sex-dimorphic prevalence, with women more frequently affected than men. The co-occurrence between these 5-HT-linked diseases suggests that they have common physiopathological mechanisms. In most 5-HT-linked diseases (except for anorexia nervosa and irritable bowel syndrome), a decrease in the serotonergic tone is observed and estrogens are thought to contribute to the improvement of symptoms by stimulating the serotonergic system. Human pregnancy is characterized by a unique 5-HT and estrogen synthesis by the placenta. Pregnancy-specific disorders, such as hyperemesis gravidarum, gestational diabetes mellitus and pre-eclampsia, are associated with a hyperserotonergic state and decreased estrogen levels. Fetal programming of 5-HT-linked diseases is a complex phenomenon that involves notably fetal-sex differences, which suggest the implication of sex steroids. From a mechanistic point of view, we hypothesize that estrogens regulate the serotonergic system, resulting in a protective e...
Source: Biochimie - Category: Biochemistry Authors: Tags: Biochimie Source Type: research

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[USAID] On December 27 and December 31, 2019, the U.S Agency for International Development (USAID) launched the first two in a series of global health awards to accelerate reductions in maternal, newborn, and child mortality and morbidity in high-burden countries.
Source: AllAfrica News: Pregnancy and Childbirth - Category: OBGYN Source Type: news
Abbott Laboratories has been wildly successful with its FreeStyle Libre continuous glucose monitor (CGM) since winning FDA approval in 2017, but it seems some investors and patients may be getting restless as the U.S. market waits for the second-generation of the blockbuster technology. We first noted some signs of impatience for Libre 2 in our coverage of Abbott's third-quarter earnings call in October. One reader commented on that article that "I don’t particularly care about investors becoming impatient, as a Freestyle Libre user I am growing impatie...
Source: MDDI - Category: Medical Devices Authors: Tags: Business Source Type: news
ConclusionLig exerts renoprotective functions in an animal model of DN mediated by antioxidant action, inhibition of apoptosis, anti-inflammatory action, reduction of renal fibrosis, reduction of the proliferation of mesangial cells, inhibition of endotheliosis, inhibition of atherosclerosis and promotion of renal autophagy. The positive conclusion should be treated cautiously because of various methodological flaws. Further studies are recommended according to ARRIVE guidelines. The method of modeling with high-dose STZ should be avoided and improved STZ modeling schemes are recommended. Considering the large dosage range...
Source: Journal of Ethnopharmacology - Category: Drugs & Pharmacology Source Type: research
TYPE 2 diabetes is a chronic condition that may require you to forgo your favourite treats to stave off the risks posed by rising blood sugar levels. Certain foods may seem healthy on the surface but contain hidden risks that can send blood sugar soaring, including a popular breakfast item.
Source: Daily Express - Health - Category: Consumer Health News Source Type: news
Postoperative pain is not adequately managed in greater than 40% of surgical patients and is a high priority for perioperative research. In this meta-analysis, we examined studies comparing postoperative opioid consumption and pain scores in surgical patients who received methadone by any route vs those who received another opioid by any route. Studies were identified from PubMed, Cochrane, Web of Science, EMBASE, and Scopus from January 1966 to November 2018. Pooled odds ratios were calculated for a primary outcome of postoperative opioid consumption and secondary outcomes of time-to-extubation, time-to-first postoperativ...
Source: Pain - Category: Anesthesiology Tags: Systematic Review and Meta-Analysis Source Type: research
The tendency to select threatening over benign interpretations of ambiguous bodily sensations and cues characterises young people with chronic pain. However, previous studies disagree over whether these biases extend to nonbodily harm situations such as social evaluation. Understanding the content of these biases is crucial to the development of pain management strategies seeking to modify such biases. Two hundred forty-three young people aged 16 to 19 years completed an expanded version of the Adolescent Interpretation of Bodily Threat task. Using a factor-analytic approach, we removed items that did not consistently asso...
Source: Pain - Category: Anesthesiology Tags: Research Paper Source Type: research
We conducted a multicenter, randomized, patient- and assessor-blinded, sham-controlled trial to investigate the efficacy of repetitive transcranial magnetic stimulation (rTMS) of the primary motor cortex (M1) in patients with neuropathic pain (NP). Patients were randomly assigned to receive 5 daily sessions of active or sham rTMS of M1 corresponding to the part of the body experiencing the worst pain (500 pulses per session at 5 Hz). Responders were invited to enroll in an open-label continuous trial involving 4 weekly sessions of active rTMS. The primary outcome was a mean decrease in a visual analogue scale of pain inten...
Source: Pain - Category: Anesthesiology Tags: Research Paper Source Type: research
This study aims to test the hypothesis that induced spinal sensitization could be more pronounced in patients affected by high-frequency migraine (HF-MIG) with respect to low-frequency migraine (LF-MIG). We enrolled 28 patients with LF-MIG (1-5 migraine days/month), 19 patients with HF-MIG (6-14 migraine days/month), and 21 healthy controls (HCs). Spinal sensitization was evaluated with the neurophysiological recording of the temporal summation threshold (TST) of the nociceptive withdrawal reflex at the lower limb. Temporal summation threshold was recorded at baseline and 30, 60, and 120 minutes after NTG administration (0...
Source: Pain - Category: Anesthesiology Tags: Research Paper Source Type: research
Despite evidence of broad impact on daily functioning in adolescence, little is known regarding the life course effects of childhood chronic pain. This is the first nationally representative study to characterize the disruptive impact of chronic pain in adolescence on key educational, vocational, and social outcomes in young adulthood (12 years later). Data from the National Longitudinal Study of Adolescent to Adult Health (Add Health) were used, including 3174 youth with chronic pain and 11,610 without chronic pain. Multivariate regression analyses controlling for sociodemographic factors and adolescent depression found t...
Source: Pain - Category: Anesthesiology Tags: Research Paper Source Type: research
Low levels of catechol-O-methyltransferase (COMT), an enzyme that metabolizes catecholamines, and stress, which potentiates catecholamine release from sympathetic nerves, are fundamental to chronic functional pain syndromes and comorbid depression, which predominantly affect females. Here, we sought to examine the independent and joint contributions of low COMT and stress to chronic functional pain and depression at the behavioral and molecular level. Male and female C57BL/6 mice received sustained systemic delivery of the COMT inhibitor OR486 over 14 days and underwent a swim stress paradigm on days 8 to 10. Pain and depr...
Source: Pain - Category: Anesthesiology Tags: Research Paper Source Type: research
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