Publications by authors named "Massimo Allegri"

More than a half of plasma proteins are N-glycosylated. Most of them are synthesized, glycosylated, and secreted to the bloodstream by liver and lymphoid tissues. While associations with N-glycosylation are implicated in the rising number of liver, cardiometabolic, and immune diseases, little is known about the genetic regulation of this process.

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Thiol-containing drugs may interact with a region of tropomyosin receptor kinase A (TrkA), potentially inhibiting its activation by nerve growth factor (NGF). This action has been linked to potential analgesic activities. Here, we describe the ability of erdosteine, a thiolic compound classified as a mucolytic agent, to bind to the TrkA receptor sequence in silico and its in vitro effects on TrkA activation induced by NGF in cultured human neuroblastoma cells.

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Long COVID, characterized by persistent symptoms following COVID-19 infection, significantly impacts individuals' health and daily functioning due to fatigue and pain. Focusing on pain, this review addresses nociplastic and chronic pain conditions. Interventions designed to reduce inflammation, oxidative stress, and enhance vagal activity may offer a promising approach to managing post-pandemic pain.

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Article Synopsis
  • - The study investigates the genetic factors contributing to chronic post-surgical pain (CPSP) by analyzing data from 1,350 individuals who underwent various types of surgery, and highlights a significant genetic component, estimating a 39% heritability for CPSP through meta-analysis.
  • - Researchers identified 77 key genetic variations (SNPs) linked to CPSP and noted that most of these are associated with immune system genes, especially those related to B and T cells.
  • - Animal studies showed that mice without T and B cells experienced worsened pain after surgery, which could be mitigated by transferring B cells, suggesting that the adaptive immune system plays a crucial protective role against CPSP.
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N-acetylcysteine (NAC), a mucolytic agent and an antidote to acetaminophen intoxication, has been studied in experimental conditions and trials exploring its analgesic activity based on its antioxidant and anti-inflammatory properties. The purpose of this study is to investigate additional mechanisms, namely, the inhibition of nerve growth factor (NGF) and the activation of the Tropomyosin receptor kinase A (TrkA) receptor, which is responsible for nociception. In silico studies were conducted to evaluate dithiothreitol and NAC's interaction with TrkA.

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A majority of older patients suffer from neuropathic pain (NP) that significantly alters their daily activities and imposes a significant burden on health care. Multiple comorbidities and the risk of polypharmacy in the elderly make it challenging to determine the appropriate drug, dosage, and maintenance of therapy. Age-dependent processes play a contributing role in neuropathy given that diabetic neuropathy (DN) is the most common form of neuropathy.

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Background: Continuous wound infusion (CWI) is effective for post-operative pain management, but the effect of prolonged infusions and the use of steroids in the infused mixture have never been addressed. We investigate the effect of prolonged CWI with ropivacaine 0.2% (R) over seven days and methylprednisolone (Mp) 1 mg/kg infused in the wound in the first 24 hours.

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Chronic post-surgical pain affects a large proportion of people undergoing surgery, delaying recovery time and worsening quality of life. Although many environmental variables have been established as risk factors, less is known about genetic risk. To uncover genetic risk factors we performed genome-wide association studies in post-surgical cohorts of five surgery types- hysterectomy, mastectomy, abdominal, hernia, and knee- totaling 1350 individuals.

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In the last decades there has been a huge increase in people who practice sports requesting an increase of the performance. Consequently, also incidence of acute and chronic pain is highly increased in this population of "healthy" people. Pain represents not only a signal of a lesion occurred during the sportive activity, but also (and almost) an unbalance of posture or an overuse of specific articulations or muscles, that has to be resolved not only with a correct physiotherapeutic approach, but also with a careful diagnosis of the complex mechanisms that sustain the pain.

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Article Synopsis
  • Scientists studied how acute pain becomes chronic pain using 98 people with low back pain (LBP) and looked at their immune cells over 3 months.
  • They found that people whose pain went away showed many changes in their immune cells, but those whose pain continued didn’t have any changes.
  • Giving treatments like NSAIDs early might help with pain at first, but could actually make long-term pain worse, according to both mouse tests and observations of humans.
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This review is aimed to summarize the pain-relieving effect of non-drug substances, mostly prescribed as integrators in treatment of pain, including especially in chronic postoperative pain (CPSP) and in chronic back pain after acute episodes. Their use reflects the fact that the current treatments for these syndromes continue to pose problems of unsatisfactory responses in a significant portion of patients and/or of an excess of side effects like those noted in the present opioid crisis. As integrators are frequently introduced into the market without adequate clinical testing, this review is aimed to collect the present scientific evidence either preclinical or clinical for their effectiveness.

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Most respiratory viruses show pronounced seasonality, but for SARS-CoV-2, this still needs to be documented. We examined the disease progression of COVID-19 in 6,914 patients admitted to hospitals in Europe and China. In addition, we evaluated progress of disease symptoms in 37,187 individuals reporting symptoms into the COVID Symptom Study application.

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Article Synopsis
  • * A study analyzing IgG N-glycome composition from 333 COVID-19 patients (166 severe and 167 mild) in Spain, Italy, and Portugal found significant differences in glycosylation patterns linked to disease severity.
  • * Specifically, severe cases showed a decrease in a type of sugar molecule (bisecting N-acetylglucosamine) on IgG, while variations in another sugar component (galactosylation) were also noted but were not statistically significant after further analysis.
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Opioids are extensively used in patients with cancer pain; despite their efficacy, several patients can experience ineffective analgesia and/or side effects. Pharmacogenetics is a new approach to drug prescription based on the "personalized-medicine" concept, i.e.

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Human protein glycosylation is a complex process, and its in vivo regulation is poorly understood. Changes in glycosylation patterns are associated with many human diseases and conditions. Understanding the biological determinants of protein glycome provides a basis for future diagnostic and therapeutic applications.

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