The neuropeptides comprise an important part in the nervous system interacting with endocrine and immune systems. Peptide regulators are responsible for the continuity of communicating elements, which support homeostasis, however, despite abundant research examining neuropeptides, not all specific mechanisms and features of interacting proteins with cells and immune components have been uncovered. Objective: to perform a comprehensive assessment of neuropeptide system in patients with herpes zoster. Materials and methods: 106 in-hospital patients were examined diagnosed with herpes zoster within 2016–2019 period. Control group consisted of 30 healthy age- and sex-matched volunteers. Blood serum was collected after verifying diagnosis on day 1. After discharge, patients were monitored for signs of pain syndrome and overall state within 3 months. It allowed to divide patients into 3 groups retrospectively. Group 1 — patients with herpes zoster, accompanied by mild or moderate pain syndrome; group 2 — patients with herpes zoster, accompanied by severe pain; group 3 — patients with herpes zoster, complicated by postherpetic neuralgia. Level of serum protein s100B, myelin basic protein, nerve growth factor, brain-derived neurotrophic factor, neuron specific enolase was measured by using specific reagents purchased from “R&D Diagnostics Inc.” (США). Results. it was found that level of serum protein S100B in all groups was significantly increased compared to control group, showing no inter-group differences. Amount of myelin basic protein in all study groups vs. control was significantly higher. Moreover, level of these parameters in group 2 vs. group 1 and 3 was significantly elevated. In addition, level of nerve growth factor was significantly increased in group 1 vs. groups 2 and 3, whereas in group 3 it was significantly lower than in control and group 2. Brain-derived neurotrophic factor was significantly decreased in all the study groups compared to control, showing no significant intergroup differences. Level of neuron-specific enolase was significantly increased in group 3 vs. control as well as group 1 and 2. The data obtained allowed to identify two parameters for assessing a risk of postherpetic neuralgia in acute herpes zoster, as well as provided deeper insights into the pathogenesis of neuroimmune disorders accompanying herpes zoster.
Papillomaviruses are a group of DNA viruses belonging to the Papillomavirida family. These viruses provoke pathological conditions manifesting with inflammation, exophytic masses, carcinogenesis, reproductive and perinatal disorders. Immune status is an essential factor de-termining the severity and duration of inflammatory diseases, the course of latent viral infections, including papillomavirus infection (PVI). The human immune system prevents the persistence, reactivation, and development of PVI clinical presentations. The cellular immune response is realized under the control of interferons (IFNs). Today, no complex studies on type 1, 2, or 3 IFNs in the cervical mucus of women with PVI associated with herpesvirus and chlamydia infec-tions are available. Aim: to compare IFN profile of mucosal immunity in women with PVI associated with herpesvirus and chlamydia infections. Patients and Methods: this study enrolled 149 women aged 25–44. Women were divided into four groups. Group 1 included women with PVI only (n=21). Group 2 included women with PVI and herpesvirus infection (n=47). Group 3 included women with PVI and chlamydia infec-tions (n=39). Group 4 included controls (n=30). Complex outpatient clinical laboratory examina-tion included clinical functional, biochemical, and immunological tests to detail pathophysiolog-ical mechanisms of urogenital PVIs. IFN (IFN-β, IFN-γ, IFN-λ1/IL-29, IFN-λ3/IL-28B) levels in the cervical mucus were measured by ELISA. Results: in all groups, IFN-λ3 and IFN-γ deficiencies were detected. In PVI, IFN-γ deficiency prevailed. In PVI associated with herpesvirus infection, IFN-λ3 deficiency prevailed. In PVI associated with chlamydia infection, a severe IFN-β deficiency was revealed. Conclusion: these patterns demonstrate a relevant role of the interferon arm of the im-mune response in the pathogenesis of isolated PVI and PVI associated with herpesvirus and chlamydia infections. These alterations in mucosal immunity support the prescription of immu-notherapy for these infections. KEYWORDS: human papillomavirus, herpesvirus infection, chlamydia infection, interferons, immune system, cervical mucus, mucosal immunity. FOR CITATION: Markelova E.V., Tulupova M.S., Nevezhkina T.A. et al. Interferon profile of the mucosal immunity in women with papillomavirus infection. Russian Medical Inquiry. 2022;6(2):67–71 (in Russ.). DOI: 10.32364/2587-6821-2022-6-2-67-71.
The paper presents the results on spontaneous and induced production of IFNγ, IL-4, IL-13 cytokines in blood cells of patients with mandibular fractures and post-traumatic osteomyelitis. Osteomyelitis of the jaw represents one of the urgent challenges in modern medicine. There are many reasons for development of purulent necrotic processes of the jaw bones, including disorders of innate and adaptive immune response. Currently, the immunological aspects of post-traumatic complications of maxillofacial region remain poorly understood. There are no unambiguous and systematic studies of immune mechanisms in pathogenesis of post-traumatic osteomyelitis of the lower jaw. The aim of our study was to theoretically confirm application of recombinant interleukins (IL-1β, IL-2, IFNγ) in the patients with jaw fractures, in order to prevent osteomyelitis, as based on the studies of spontaneous and induced cytokine production (IFNγ, IL-4, IL-13). Spontaneous and stimulated production of IFNγ, IL-4, and IL-13 cytokines by blood cells was determined using specific reagent kits from RD Diagnostic Inc. (USA). The results were recorded using an ELISA Multiscan analyzer (Finland). Statistical significance of intergroup differences was determined by the Mann–Whitney method. The level of statistical significance at which the null hypotheses were rejected was 0.05. To stratify the cases of post-traumatic osteomyelitis and uncomplicated mandibular fracture, the models were developed with a singlelayer neural network, using the nnet R-studio package. To assess quality of the models, the areas under the ROC curves (AUC), Akaike criterion (AIC), and the relative classification accuracy (OTC) were used, which was determined as the ratio of correctly established model diagnosis numbers to the total number of patients. The study results demonstrate that the patients with mandibular fractures exhibit a moderate impairment of LPS-induced IL-4 and IFNγ production by leukocytes with IL-13 activation. In presence of osteomyelitis, this imbalance is promoted, thus suggesting an impaired ability of the cells to produce IL-4 and IFNγ. An opportunity for usage immunomodulation when treating the patients with mandibular fractures is represented by P = 1/(1+e-z) where z is defined via IL-1β, IL-2 and IFNγ levels on the first day of observation. In vitro supplementation with recombinant IL-1β and IFNγ modulates cell function, improving the cytokine profile. The prognostic models, imitating binary logistic regression, were used to demonstrate that recombinant IL-1β could be used to prevent patients with mandibular fractures from developing post-traumatic osteomyelitis (AIC = 13.2, AUC = 0.96, р = 0.026).
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