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Female sexual dysfunction in psoriasis: a systematic review and meta-analysis using the Female Sexual Function Index.

Psoriasis is an inflammatory skin condition that can negatively affect numerous domains for quality of life, including sexual function. We aimed to systematically compare sexual function between women with and without psoriasis through meta-analysis. Databases were searched for studies assessing sexual function in women with and without psoriasis using the Female Sexual Function Index (FSFI). Meta-analyses were conducted in R (v4.1.2) to determine: (i) the odds ratio (OR) of sexual dysfunction and (ii) the mean difference (MD) for FSFI scores and sub-scores. Eight studies (five case-control, three cross-sectional) were eligible for review, encompassing 563 women with psoriasis and 525 controls. Risk of bias for included studies was considered as low to moderate. Psoriasis was associated with greater odds of female sexual dysfunction (OR 2.67, 95% CI 1.93,3.69; p < 0.0001). Compared to controls, women with psoriasis had significantly lower mean scores for desire (p < 0.0001), arousal (p = 0.002), lubrication (p = 0.003), orgasm (p < 0.0001), satisfaction (p < 0.0001) and total scores (p < 0.0001). Mean pain scores did not significantly differ between psoriasis patients and controls (p = 0.051). We identified significantly impaired sexual function in women with psoriasis compared to controls, suggesting that routine assessment of sexual health may be beneficial. Prospective studies of larger sample size are required in order to explore the underlying mechanisms and risk factors.

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Comparing the Efficacy of Dorsal Root Ganglion Stimulation With Conventional Medical Management in Patients With Chronic Postsurgical Inguinal Pain: Post Hoc Analyzed Results of the SMASHING Study.

Approximately 10% of patients who undergo inguinal hernia repair or Pfannenstiel incision develop chronic (> three months) postsurgical inguinal pain (PSIP). If medication or peripheral nerve blocks fail, a neurectomy is the treatment of choice. However, some patients do not respond to this treatment. In such cases, stimulation of the dorsal root ganglion (DRG) appears to significantly reduce chronic PSIP in selected patients.

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Chronic pain in Alzheimer’s disease: Endocannabinoid system.

Chronic pain, one of the most common reasons adults seek medical care, has been linked to restrictions in mobility and daily activities, dependence on opioids, anxiety, depression, sleep deprivation, and reduced quality of life. Alzheimer's disease (AD), a devastating neurodegenerative disorder (characterized by a progressive impairment of cognitive functions) in the elderly, is often co-morbid with chronic pain. AD is one of the most common neurodegenerative disorders in the aged population. The reported prevalence of chronic pain is 45.8% of the 50 million people with AD. As the population ages, the number of older people who experience AD and chronic pain will also increase. The current treatment options for chronic pain are limited, often ineffective, and have associated side effects. This review summarizes the role of the endocannabinoid system in pain, its potential role in chronic pain in AD, and addresses gaps and future directions.

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CGRP physiology, pharmacology, and therapeutic targets: Migraine and beyond.

Calcitonin gene-related peptide (CGRP) is a neuropeptide with diverse physiological functions. Its two isoforms (α and β) are widely expressed throughout the body in sensory neurons, as well as in other cell types, such as motor neurons and neuroendocrine cells. CGRP acts via at least two G protein-coupled receptors that form unusual complexes with receptor activity-modifying proteins. These are the CGRP receptor and the AMY receptor; in rodents, additional receptors come into play. Although CGRP is known to produce many effects, the precise molecular identity of the receptor(s) that mediate CGRP effects is seldom clear. Despite the many enigmas still in CGRP biology, therapeutics that target the CGRP axis to treat or prevent migraine are a bench to bedside success story. This review provides a contextual background on the regulation and sites of CGRP expression and CGRP receptor pharmacology. The physiological actions of CGRP in the nervous system are discussed, along with updates on CGRP actions in the cardiovascular, pulmonary, gastrointestinal, immune, hematopoietic, and reproductive systems, and metabolic effects of CGRP in muscle and adipose tissues. We cover how CGRP in these systems is associated with disease states, most notably migraine. In this context, we discuss how CGRP actions in both the peripheral and central nervous systems provide a basis for therapeutic targeting of CGRP in migraine. Finally, we highlight potentially fertile ground for the development of additional therapeutics and combinatorial strategies that could be designed to modulate CGRP signaling for migraine and other diseases.

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Nociception and pain in humans lacking functional TRPV1 channel.

Chronic-pain is a debilitating illness that has become exceedingly widespread with currently limited treatments. Differences in the molecular signature of nociceptors, have been demonstrated between human and the commonly-used mouse model, suggesting functional differences in detection and transmission of noxious-stimuli. Therefore, direct understanding of pain-physiology in humans is required for pain treatment. This could be facilitated by studying humans carrying deleterious genetic mutations affecting pain sensation. The transient receptor potential vanilloid 1 (TRPV1) channel is associated with several body-functions, in particular, noxious-heat detection and inflammatory-pain. Reports of adverse effects in human trials have hinder the clinical development of TRPV1 antagonists as novel pain relievers. Hence, studies on the functional roles of TRPV1, which currently rely mainly on evidences obtained from rodents, should be extended to humans. Here, we examined humans carrying a unique missense mutation in TRPV1, rendering the channel non-functional. The affected individual demonstrated lack of aversion towards capsaicin and elevated heat-pain threshold. Surprisingly, he showed elevated cold-pain threshold and extensive neurogenic inflammatory flare and pain-responses following application of the TRPA1 channel-activator, mustard-oil. Our study provides the first direct evidence for pain-related functional-changes linked to TRPV1 in humans, which is a prime target in the development of novel pain-relievers.

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A Comprehensive Review of Spinal Cord Stimulator Infections.

Spinal cord stimulator (SCS) is approved to treat various pain conditions and is commonly seen in the chronic pain patient population. Due to the nature of the device and its location, infections associated with SCS have a particularly high morbidity. According to post-market data and medical device reports, 87% of patients receiving SCS implants were given perioperative antibiotics as the implantable neurostimulator or receiver pocket serve as the most common sites of infection. The most common antibiotics for surgical prophylaxis given are first-generation cephalosporins (cefalexin, cefazolin) at the time of implantation. If deep infection is suspected, imaging in the form of CT scan should be obtained as physical exam is not always sufficient. For infections involving the epidural space, vertebra, or intervertebral discs, MRI is the preferred imaging modality. If meningitis is suspected, a lumbar puncture is recommended. Positive cultures can help guide antibiotic therapy.

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Relationship between intraoperative tidal volume and acute kidney injury following off-pump coronary artery bypass grafting: A retrospective observational study.

The effect of intraoperative tidal volume (VT) on clinical outcomes after off-pump coronary artery bypass grafting (OPCAB) has not been studied. The aim of this study was to assess the relationship between intraoperative tidal volume (VT) and acute kidney injury (AKI ) after OPCAB. A total of 1049 patients who underwent OPCAB between January 2009 and December 2018 were analyzed. Patients were divided into high (>8 ml/kg) and low VT (≤8 ml/kg) groups (intraoperative median VT standardized to predicted body weight). The data were fitted using a multivariable logistic regression model. Subgroup analyses were performed according to age, sex, comorbidities, preoperative laboratory variables, operative profiles, and Cleveland score. The risk of AKI was not significantly higher in the high than the low VT group (OR: 1.15, 95% CI: 0.80-1.66; P = .459); however, subgroup analyses revealed that a high VT may increase the risk of AKI in males, patients aged < 70 years, with chronic kidney disease, a left ventricular ejection fraction < 35%, or a long duration of surgery. High intraoperative VTs were not associated with an increased risk of AKI after OPCAB. Nonetheless, it may increase the risk of AKI in certain subgroups, such as younger age, male sex, reduced renal and cardiac function, and a long surgery time.

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Repetitive transcranial magnetic stimulation in patients with fibromyalgia: A protocol for systematic review and network meta-analysis.

Fibromyalgia is a chronic disease characterized by widespread pain. Repetitive transcranial magnetic stimulation (rTMS) effectively relieves pain intensity in patients with fibromyalgia. The frequency and target site of rTMS have significant roles in therapy effectiveness. However, there is disagreement over the best rTMS protocol. Thus, we will conduct a thorough systematic review and network meta-analysis to rank the efficacy of these various rTMS protocols and determine which is most beneficial in lowering pain and enhancing the quality of life.

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Clinician-administered performance-based tests via telehealth in people with chronic lower limb musculoskeletal disorders: Test-retest reliability and agreement with in-person assessment.

Uptake of telehealth has surged, yet no previous studies have evaluated the clinimetric properties of clinician-administered performance-based tests of function, strength, and balance via telehealth in people with chronic lower limb musculoskeletal pain. This study investigated the: (i) test-retest reliability of performance-based tests via telehealth, and (ii) agreement between scores obtained via telehealth and in-person.

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Saussurea involucrata oral liquid regulates gut microbiota and serum metabolism during alleviation of collagen-induced arthritis in rats.

Saussurea involucrata oral liquid (SIOL) can clinically relieve symptoms, such as joint pain and swelling, and morning stiffness, in patients with rheumatoid arthritis (RA). However, the mechanism of action remains unclear. This study used a combination of gut microbiota and serum metabolomics analysis to investigate the effects and potential mechanisms of SIOL intervention on rats with RA induced by type II bovine collagen and Freund's complete adjuvant. Results showed that SIOL treatment consequently improved the degree of ankle joint swelling, joint histopathological changes, joint pathological score, and expression of serum-related inflammatory cytokines (interleukin (IL)-1β, IL-4, IL-6, IL-10, and tumor necrosis factor-α) in RA model rats. 16 S rRNA sequencing results showed that SIOL increased the relative richness of the Lactobacillus and Bacteroides genus and decreased the relative richness of Romboutsia, Alloprevotella, Blautia, and Helicobacter genus. Serum nontargeted metabolomic results indicated that SIOL could regulate metabolites related to metabolic pathways, such as glycine, serine, threonine, galactose, cysteine, and methionine metabolism. Spearman correlation analysis showed that the regulatory effects of SIOL on the tricarboxylic acid (TCA) cycle, phenylalanine metabolism, phenylalanine, tyrosine, and tryptophan biosynthesis, and glyoxylate and dicarboxylate metabolism pathways were correlated with changes in the richness of the Lactobacillus, Romboutsia, Bacteroides, and Alloprevotella genus in the gut microbiome. In conclusion, this study revealed the ameliorative effects of SIOL on RA and suggested that the therapeutic effects of SIOL on RA may be related to the regulation of the community richness of the Lactobacillus, Romboutsia, Bacteroides, and Alloprevotella genus, thereby improving the TCA cycle; phenylalanine metabolism; phenylalanine, tyrosine, and tryptophan biosynthesis, and glyoxylate and dicarboxylate metabolism-related pathways.

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