Genetic variation in P2RX7 and pain tolerance

P2X7 is a nonselective cation channel activated by extracellular ATP. P2X7 activation contributes to the proinflammatory response to injury or bacterial invasion and mediates apoptosis. Recently, P2X7 function has been linked to chronic inflammatory and neuropathic pain. P2X7 may contribute to pain modulation both by effects on peripheral tissue injury underlying clinical pain states, and through alterations in central nervous system processing, as suggested by animal models. To further test its role in pain sensitivity, we examined whether variation within the P2RX7 gene, which encodes the P2X7 receptor, was associated with experimentally induced pain in human patients. Experimental pain was assessed in Tromsø 6, a longitudinal and cross-sectional population-based study (N = 3016), and the BrePainGen cohort, consisting of patients who underwent breast cancer surgery (N = 831). For both cohorts, experimental pain intensity and tolerance were assessed with the cold-pressor test. In addition, multisite chronic pain was assessed in Tromsø 6 and pain intensity 1 week after surgery was assessed in BrePainGen. We tested whether the single-nucleotide polymorphism rs7958311, previously implicated in clinical pain, was associated with experimental and clinical pain phenotypes. In addition, we examined effects of single-nucleotide polymorphisms rs208294 and rs208296, for which previous results have been equivocal. Rs7958311 was associated with experimental pain intensity ...
Source: Pain - Category: Anesthesiology Tags: Research Paper Source Type: research

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Conditions:   Breast Cancer;   Pain, Chronic;   Pain, Postoperative;   Mastectomy; Lymphedema Intervention:   Other: Rehabilitation protocol Sponsor:   University of Roma La Sapienza Completed
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
ConclusionsFull DN4 could stratify pNP and dNP patients in a chronic postsurgical NP patient group operated for breast cancer. Additionally, DN4i showed significant accuracy in stratifying pNP and dNP, but an examination is necessary to obtain proper accuracy. Demographic factors may have an impact on the screening outcome of DN4i.
Source: European Journal of Pain - Category: Anesthesiology Authors: Tags: ORIGINAL ARTICLE Source Type: research
ConclusionIORT boost appears to be a  highly efficient and safe method for upfront delivery of the tumor bed boost in high-risk breast cancer patients.
Source: Strahlentherapie und Onkologie - Category: Cancer & Oncology Source Type: research
TIME held its first TIME 100 Health Summit on Thursday aiming to define — and shape — the future of health care. The Summit, which is an offshoot of the magazine’s annual TIME 100 list of influential people, featured scientists, politicians and entertainers, such as former President Bill Clinton, former Vice President Al Gore, NIH Director Dr. Francis Collins, actress Selma Blair, NBA commissioner Adam Silver, comedian Tig Notaro and former Planned Parenthood President Dr. Leana Wen. The day included a range of interviews, panels and performances. Here are the biggest moments from the Summit. Former Vice ...
Source: TIME: Health - Category: Consumer Health News Authors: Tags: Uncategorized Comedy HealthSummit19 onetime Source Type: news
CONCLUSION: Patients' qualitative feedback highlighted the potential feasibility and adaptability of the program for this population. The results of this preliminary study show promising avenues for research in the field of cancer patients' adaptive coping enhancement as well as reduce anxiety and depression symptoms. This type of workshop can be considered as complementary to individual psychotherapies as they may tap into different mechanisms that help foster psychological flexibility as the group format enhances decentering processes. Further research avenues are proposed in order to assess the efficacy of such interven...
Source: L Encephale - Category: Psychiatry Tags: Encephale Source Type: research
Conclusion: This RCT shows that perioperative pregabalin may not have a role in the prevention of chronic pain after breast surgeries.
Source: Indian Journal of Palliative Care - Category: Palliative Care Authors: Source Type: research
by Drew Rosielle (@drosielle)A Series of Observations on Opioids By a Palliative Doc Who Prescribes A Lot of Opioids But Also Has Questions.This is the 5th post in a series about opioids, with a focus on how my thinking about opioids has changed over the years. See also:Part 1 – Introduction, General Disclaimers, Hand-Wringing, and a Hand-Crafted Graph.Part 2 – We Were Wrong 20 years Ago, Our Current Response to the Opioid Crisis is Wrong, But We Should Still Be Helping Most of our Long-Term Patients Reduce Their Opioid DosesPart 3 – Opioids Have Ceiling Effects, High-Doses are Rarely Therapeutic, and Ano...
Source: Pallimed: A Hospice and Palliative Medicine Blog - Category: Palliative Care Tags: cancer opioids pain rosielle The profession Source Type: blogs
Can we reduce the persistent, unbearable pain of losing a loved one to 15-20 voxels of brain activity in the nucleus accumbens (O'Connor et al., 2008)? No? Then what if I told you that unrelenting grief — and associated feelings of sheer panic, fear, terminal aloneness, and existential crisis — isn't “suffering”. It's actually rewarding!Well I'm here to tell you that it isn't.Looking back on apost from 2011, you never realize it's going to be you.1The top figure shows that activity in thenucleus accumbens was greater in response to grief-related words vs. neutral words in a group of 11 women with &l...
Source: The Neurocritic - Category: Neuroscience Authors: Source Type: blogs
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