Altered gray matter volume in sensorimotor and thalamic regions associated with pain in localized provoked vulvodynia: a voxel-based morphometry study

In this study, we tested the hypotheses that PVD compared with healthy controls (HCs) would demonstrate gray matter volume (GMV) alterations in regions associated with sensorimotor, corticothalamic, and basal ganglia circuits. We also tested the replicability of previously reported gray matter increases in basal ganglia and hippocampal volumes in PVD vs HCs. In addition, disease specificity of GMV alterations were examined by comparing PVD with another chronic pain disorder. Finally, we examine whether GMV alterations are correlated with symptom measures. Structural magnetic resonance imaging was obtained in 119 premenopausal women (45 PVD, 45 HCs, and 29 irritable bowel syndrome [IBS]). A voxel-based morphometry analysis was applied to determine group differences in the hypothesized regions of interest. Compared with HCs, PVD women exhibited greater GMV in the basal ganglia, hippocampus, and sensorimotor cortices. Compared to patients with IBS, women with PVD had greater GMV in the hippocampus, and sensorimotor network, but lower GMV in the thalamus and precentral gyrus. Regional GMV alterations were associated with patient reports of pain during intercourse and muscle tenderness. The current findings provide further evidence that GMV is increased in PVD compared with HCs in several regions of the sensorimotor network and the hippocampus in patients with PVD. In addition, GMV distinct alterations in the sensorimotor network were identified between 2 pelvic pain disorders, PV...
Source: Pain - Category: Anesthesiology Tags: Research Paper Source Type: research

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Objectives: A questionnaire study demonstrated that some adult patients who were diagnosed with irritable bowel syndrome (IBS) were in fact having an abdominal wall pain syndrome, such as anterior cutaneous nerve entrapment syndrome (ACNES). The aim of the present study was to investigate whether a pediatric version of this questionnaire was useful in diagnosing abdominal wall pain syndromes in children with chronic abdominal pain (CAP). Methods: An 18-item questionnaire was tested in 3 groups of children with CAP: group 1, children who underwent surgery for ACNES (n = 42); group 2, children who were found to have...
Source: Journal of Pediatric Gastroenterology and Nutrition - Category: Gastroenterology Tags: Original Articles: Gastroenterology Source Type: research
Pain makes us human. It is a bell, fine-tuned by evolution, that often rings in moments necessary for our survival. Because of pain, we can receive warnings that trigger the reflexes to escape potential danger. But what happens when that bell continues to ring? How do we respond to a signal when it interferes with the other elements that make us human? Pain that lasts longer than six months is considered chronic, and it may not go away. With chronic pain, the bell’s ongoing signal gets your nervous system wound up and increases its reactivity to incoming messages. This can be quite distressing and anxiety-provoking. ...
Source: Harvard Health Blog - Category: Consumer Health News Authors: Tags: Back Pain Mind body medicine Pain Management Source Type: blogs
Authors: Jönsson D, Bergström A, Algström I, Simon R, Engström M, Walter S, Hotz I Abstract The cause of irritable bowel syndrome (IBS), a chronic disorder characterized by abdominal pain and disturbed bowel habits, is largely unknown. It is believed to be related to physical properties in the gut, central mechanisms in the brain, psychological factors, or a combination of these. To understand the relationships within the gut-brain axis with respect to IBS, large numbers of measurements ranging from stool samples to functional magnetic resonance imaging are collected from patients with IBS and h...
Source: Advances in Experimental Medicine and Biology - Category: Research Tags: Adv Exp Med Biol Source Type: research
Conclusions: Stress-exaggerated visceral mechanonociception after antral cold exposure may involve up-regulation of TRPA1 expression and function on vagal afferents. Our findings reveal a novel mechanism for abnormal gastrointestinal cold sensing in IBS. PMID: 31327223 [PubMed]
Source: Journal of Neurogastroenterology and Motility - Category: Gastroenterology Tags: J Neurogastroenterol Motil Source Type: research
Gluten? Lactose? Stomach pain? Digestive troubles? Way too many people suffer from gastrointestinal issues, and much less are aware of the digital technologies that can come to their aid. Did you know that digestibles could successfully replace the dreaded colonoscopy? Or have you heard about microbiome testing? What about the swarm of health apps supporting dietary restrictions? We took a deep breath and jumped into the universe of digital technologies just to bring you as much information about the future of gastroenterology as possible. Will you jump after us? IBS, colorectal cancer, and other animals Referring to...
Source: The Medical Futurist - Category: Information Technology Authors: Tags: Future of Medicine Genomics Health Sensors & Trackers diet dieting digestibles digestion digital health gastro gastroenterologist gastroenterology gastrointestinal gluten gut Innovation lactose microbiome stomach techno Source Type: blogs
Irritable Bowel Syndrome (IBS) is a chronic gastrointestinal disorder characterised by recurrent abdominal pain and disturbed bowel habits and unclear aetiology. IBS is also associated with psychosocial factor...
Source: Health and Quality of Life Outcomes - Category: International Medicine & Public Health Authors: Tags: Research Source Type: research
Abstract Neurotrophins (NTs), particularly Nerve Growth Factor (NGF) and Brain Derived Neurotrophic Factor (BDNF), have attracted increasing attention in the context of visceral function for some years. Here, we examined current literature and produced a thorough review on the subject. After initial studies linking NGF to cystitis, it is now well-established that this neurotrophin (NT) is a key modulator of bladder pathologies, including Bladder Pain Syndrome/Interstitial Cystitis (BPS/IC) and Chronic Prostatitis/Chronic Pelvic Pain Syndrome (CP/CPPS. NGF is upregulated in bladder tissue and its blockade results i...
Source: Current Neuropharmacology - Category: Drugs & Pharmacology Authors: Tags: Curr Neuropharmacol Source Type: research
Publication date: Available online 24 May 2019Source: Best Practice &Research Clinical GastroenterologyAuthor(s): Per M. HellströmAbstractIrritable bowel syndrome (IBS) is a chronic gastrointestinal symptom complex defined by abdominal pain and disturbed bowel habits over 3 months within a period of 6 months, in absence of any identifiable organic pathology. Over the years, speculations of the pathophysiology of IBS has moved from elusive central nervous symptoms impinging on psychosomatic disease, to objective signs of intestinal fermentation with abdominal bloating and intestinal dysmotility. The specific subgro...
Source: Best Practice and Research Clinical Gastroenterology - Category: Gastroenterology Source Type: research
CONCLUSION: The study identified a number of inadequacies in the consumption of different nutrients, excessive carbohydrate intake, especially FODMAPs, identified by the respondents as responsible for a worsening of their conditions. By contrast, other food groups such as meat, eggs and dairy were consumed by the sample population in insufficient quantities.RESUMO CONTEXTO: A s índrome do intestino irritável é um distúrbio funcional crônico, no qual a dieta, principalmente o teor de fibra dietética e presença de carboidratos fermentativos (FODMAPs) podem influenciar nos princ...
Source: Arquivos de Gastroenterologia - Category: Gastroenterology Source Type: research
Experimental pain sensitivity was assessed in individuals with urologic chronic pelvic pain syndrome (UCPPS) as part of the Multidisciplinary Approach to the Study of Chronic Pelvic Pain (MAPP) Research Network. A series of computer-controlled pressure stimuli were delivered to the thumbnail bed, an asymptomatic site distant from the area of UCPPS pain that is considered to be indicative of overall body pain threshold. Stimuli were rated according to a standardized magnitude estimation protocol. Pain sensitivity in participants with UCPPS was compared with healthy controls and a mixed pain group composed of individuals wit...
Source: Pain - Category: Anesthesiology Tags: Research Paper Source Type: research
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