In the long term, capsazepine could lead to the development of highly effective pain killers for diseases in which the mustard oil receptor plays an important role.
Opioid Painkillers Exposure May Worsen Chronic Pain
Even short-term exposure to opioid painkillers such as morphine can have long-term effects on chronic pain as it worsens and makes it longer lasting.
Even short-term exposure to opioid painkillers such as morphine can have long-term effects on chronic pain as it worsens and makes it longer lasting.
‘A substance called capsazepine that partially blocks the capsaicin receptor in more detail can effectively reach all nociceptors in the body via the bloodstream and potentially desensitize them.’
A team led by FAU researchers Dr. Matthias Engel, Chair of Internal Medicine I, and Prof. Dr. Peter Reeh, Institute of Physiology and Pathophysiology, have recently examined a substance called capsazepine that partially blocks the capsaicin receptor in more detail. In previous studies by other researchers this substance prevented ulcerative colitis, a form of inflammatory bowel disease, in mice. However, an unknown side effect of capsazepine must have been responsible for this, as Dr. Engel's own experiments had shown that the capsaicin receptor is not involved in the pathogenesis of this inflammatory disease. In these studies, a synthetic inhibitor of the mustard oil receptor not only prevented bowel disease but actually healed it. This led the FAU researchers to suspect that capsazepine could have a similar inhibiting effect on the mustard oil receptor. They were surprised to find that capsazepine did not inhibit the receptor but instead activated it very effectively. This caused the receptor to become insensitive to the stimulus - a phenomenon that has also been observed with many other receptors. The protective effect of capsazepine was therefore due to the fact that the nociceptors responded less to their stimuli and no longer released neuropeptides.
The researchers also discovered that although capsazepine was administered locally in the bowel, the skin also more or less stopped releasing neuropeptides. They therefore concluded that capsazepine can effectively reach all nociceptors in the body via the bloodstream and potentially desensitize them. Could this be the first step towards a new medication for severe pain? Researchers have known for some time that nociceptors can in principle be desensitized in any area of the body and that this can be achieved with large doses of capsaicin. The problem with this is that it means that the body is no longer able to regulate its temperature properly, the patient no longer feels pain due to heat, and the blood supply to certain organs suffers. All of these effects are permanent and irreversible. For this reason, capsaicin is only used to treat humans in the form of patches placed on specific skin areas or creams with a very low dose.
Opioid-free Anesthesia can Reduce Painkiller Use After Breast Cancer Surgery
While opioid drugs provide an excellent painkilling effect throughout operations, they also have side-effects such as respiratory depression and vomiting.
While opioid drugs provide an excellent painkilling effect throughout operations, they also have side-effects such as respiratory depression and vomiting.
Source-Eurekalert
Celebrex Painkiller May Help Slow Cancer Development
Celebrex is an anti-inflammatory drug that works by reducing hormones that cause pain and inflammation in the body.
Celebrex is an anti-inflammatory drug that works by reducing hormones that cause pain and inflammation in the body.
Anti-seizure, Painkiller Drug May Cause Birth Defects
Women who took pregabalin during the first trimester of pregnancy were three times more likely to result in major birth defects
Women who took pregabalin during the first trimester of pregnancy were three times more likely to result in major birth defects
