The Ks Brief Stimulator® role in postural alterations treatment: Clinical case reports

The aim of the study was to evaluate the modulations of the postural tonic system, observing the variations of plantar support. We worked on the restoration of the diaphragm function through respiratory gymnastics strategy that provides for the use of the KS Brief Stimulator® tool. For the study, 5 subjects between the ages of 10 and 27, male and female, were recruited, all with different postural alterations. The subjects underwent a preliminary baropodometric evaluation and then treated, on a monthly basis for a total of 5 months, with the KS brief Stimulator® technology and re-evaluated at the end of each treatment. Twice a week everyone carried out adapted physical activity protocols. At the end of each treatment the results of the baropodometric tests reported changes in terms of improvement of the pressure centre, showing a more congruous value than the concept of the centre of gravity and changes in the distribution of loads in both feet, in all subjects. Concluding, we could deduce the fundamental role of the diaphragm muscle in the global postural rebalancing and affirm that the application of the Ks brief Stimulator® technology, alongside the kinesiological work, represents the keystone for the restoration of the diaphragmatic function

In vitro Evaluation of Antiviral Efficacy of a Standardized Hydroalcoholic Extract of Poplar Type Propolis Against SARS-CoV-2

Except for specific vaccines and monoclonal antibodies, effective prophylactic or post-exposure therapeutic treatments are currently limited for COVID-19. Propolis, a honeybee's product, has been suggested as a potential candidate for treatment of COVID-19 for its immunomodulatory properties and for its powerful activity against various types of viruses, including common coronaviruses. However, direct evidence regarding the antiviral activities of this product still remains poorly documented. VERO E6 and CALU3 cell lines were infected with SARS-CoV-2 and cultured in the presence of 12.5 or 25 mu g/ml of a standardized Hydroalcoholic Extract acronym (sHEP) of Eurasian poplar type propolis and analyzed for viral RNA transcription, for cell damage by optical and electron microscopy, and for virus infectivity by viral titration at 2, 24, 48, and 72 h post-infection. The three main components of sHEP, caffeic acid phenethyl ester, galangin, and pinocembrin, were tested for the antiviral power, either alone or in combination. On both cell lines, sHEP showed significant effects mainly on CALU3 up to 48 h, i.e., some protection from cytopathic effects and consistent reduction of infected cell number, fewer viral particles inside cellular vesicles, reduction of viral titration in supernatants, dramatic drop of N gene negative sense RNA synthesis, and lower concentration of E gene RNA in cell extracts. Interestingly, pre-treatment of cells with sHEP before virus inoculation induced these same effects described previously and was not able to block virus entry. When used in combination, the three main constituents of sHEP showed antiviral activity at the same levels of sHEP. sHEP has a remarkable ability to hinder the replication of SARS-CoV-2, to limit new cycles of infection, and to protect host cells against the cytopathic effect, albeit with rather variable results. However, sHEP do not block the virus entry into the cells. The antiviral activity observed with the three main components of sHEP used in combination highlights that the mechanism underlying the antiviral activity of sHEP is probably the result of a synergistic effect. These data add further emphasis on the possible therapeutic role of this special honeybee's product as an adjuvant to official treatments of COVID-19 patients for its direct antiviral activity

A new tool for touch-free patient registration for robot-assisted intracranial surgery: Application accuracy from a phantom study and a retrospective surgical series

OBJECTIVE The purpose of this study was to compare the accuracy of Neurolocate frameless registration system and frame-based registration for robotic stereoelectroencephalography (SEEG). METHODS The authors performed a 40-trajectory phantom laboratory study and a 127-trajectory retrospective analysis of a surgical series. The laboratory study was aimed at testing the noninferiority of the Neurolocate system. The analysis of the surgical series compared Neurolocate-based SEEG implantations with a frame-based historical control group. RESULTS The mean localization errors (LE) ± standard deviations (SD) for Neurolocate-based and frame-based trajectories were 0.67 ± 0.29 mm and 0.76 ± 0.34 mm, respectively, in the phantom study (p = 0.35). The median entry point LE was 0.59 mm (interquartile range [IQR] 0.25-0.88 mm) for Neurolocate-registration-based trajectories and 0.78 mm (IQR 0.49-1.08 mm) for frame-registration-based trajectories (p = 0.00002) in the clinical study. The median target point LE was 1.49 mm (IQR 1.06-2.4 mm) for Neurolocate-registration-based trajectories and 1.77 mm (IQR 1.25-2.5 mm) for frameregistration- based trajectories in the clinical study. All the surgical procedures were successful and uneventful. CONCLUSIONS The results of the phantom study demonstrate the noninferiority of Neurolocate frameless registration. The results of the retrospective surgical series analysis suggest that Neurolocate-based procedures can be more accurate than the frame-based ones. The safety profile of Neurolocate-based registration should be similar to that of frame-based registration. The Neurolocate system is comfortable, noninvasive, easy to use, and potentially faster than other registration devices

Traces of trauma – a multivariate pattern analysis of childhood trauma, brain structure and clinical phenotypes

Background: Childhood trauma (CT) is a major yet elusive psychiatric risk factor, whose multidimensional conceptualization and heterogeneous effects on brain morphology might demand advanced mathematical modeling. Therefore, we present an unsupervised machine learning approach to characterize the clinical and neuroanatomical complexity of CT in a larger, transdiagnostic context. Methods: We used a multicenter European cohort of 1076 female and male individuals (discovery: n = 649; replication: n = 427) comprising young, minimally medicated patients with clinical high-risk states for psychosis; patients with recent-onset depression or psychosis; and healthy volunteers. We employed multivariate sparse partial least squares analysis to detect parsimonious associations between combinations of items from the Childhood Trauma Questionnaire and gray matter volume and tested their generalizability via nested cross-validation as well as via external validation. We investigated the associations of these CT signatures with state (functioning, depressivity, quality of life), trait (personality), and sociodemographic levels. Results: We discovered signatures of age-dependent sexual abuse and sex-dependent physical and sexual abuse, as well as emotional trauma, which projected onto gray matter volume patterns in prefronto-cerebellar, limbic, and sensory networks. These signatures were associated with predominantly impaired clinical state- and trait-level phenotypes, while pointing toward an interaction between sexual abuse, age, urbanicity, and education. We validated the clinical profiles for all three CT signatures in the replication sample. Conclusions: Our results suggest distinct multilayered associations between partially age- and sex-dependent patterns of CT, distributed neuroanatomical networks, and clinical profiles. Hence, our study highlights how machine learning approaches can shape future, more fine-grained CT research

Virus-Encoded Circular RNAs: Role and Significance in Viral Infections

Circular RNAs (circRNAs) have been the focus of intense scientific research to understand their biogenesis, mechanisms of action and regulatory functions. CircRNAs are single stranded, covalently closed RNA molecules lacking the 5′-terminal cap and the 3′-terminal polyadenine chain, characteristics that make them very stable and resistant. Synthesised by both cells and viruses, in the past circRNAs were considered to have no precise function. Today, increasing evidence shows that circRNAs are ubiquitous, some of them are tissue- and cell-specific, and critical in multiple regulatory processes (i.e., infections, inflammation, oncogenesis, gene expression). Moreover, circRNAs are emerging as important biomarkers of viral infection and disease progression. In this review, we provided an updated overview of current understanding of virus-encoded and cellular-encoded circRNAs and their involvement in cellular pathways during viral infection

Removal of fiber posts during endodontic retreatments using ultrasonic tips: A comparison between two different endodontic fiber posts

Aim: The purpose of this study was to evaluate temperature changes generated on radicular surface of extracted monoradicular teeth during ultrasonic removal of fiber posts. Methodology: Forty intact monoradicular teeth, with not less than 15 mm root canal length, with mature apex and without root fractures, were selected. After root canal instrumentation and obturation of teeth, dowel space preparation was obtained at 9 mm length. Samples were randomly divided into two groups according to the type of fiber post used: the first group received quartz fiber posts D.T. Light Post n. 0.5; the second group cemented silica fiber post TECHOLE S with central hole. Removal technique was performed with microblades ultrasonic tips, in particular Start-X #3. Operative protocol provided succession of dry use of ultrasonic inserts for a period of 25 s, air cooling for 25 s and water cooling for 25 s, until posts entire removal. Thermographic measurements were recorded taking photography and videos using Thermal Imaging Camera FLIR-One. Results: Results show that dry use leads to rapid increase in root surface temperature beyond critical limit, while both air cooling and water one decreases it to lower value for both of groups. The best results were obtained by water cooling. Conclusions: Air or water cooling seems to be essential during the use of ultrasonic tips to reduce the risk of periodontal tissue and bone damage due to an excessive temperature raise. It's necessary to increase the samples number to conduct statistical analyses. Riassunto: Obiettivi: Lo scopo di questo lavoro è quello di valutare su denti estratti le variazioni di temperatura che si sviluppano lungo la superficie radicolare durante la rimozione ultrasonica di due tipologie di perni endocanalari in fibra. Materiali e metodi: Sono stati selezionati 40 denti integri monoradicolari, con lunghezza canalare minima di 15 mm, apice maturo e assenza di fratture radicolari. Dopo preparazione ed otturazione canalare, è stato preparato un “dowel space” della profondità costante di 9 mm. I campioni sono stati divisi in due gruppi: nel gruppo A sono stati cementati perni in fibra di quarzo D.T. Light Post n. 0.5; nel gruppo B perni cavi in fibra di silice TECHOLE S. La procedura abrasiva dei perni è stata effettuata con punte ultrasoniche multilama StartX #3, alternando 25 secondi di lavoro a secco, con raffreddamento ad aria e con raffreddamento ad acqua fino alla completa rimozione del perno ed effettuando le misurazioni termografiche tramite Termocamera ad infrarossi Flir-One. Risultati: Il lavoro a secco ha mostrato un brusco innalzamento della temperatura sulla superficie radicolare in entrambi i gruppi, mentre entrambe le tipologie di raffreddamento sono state efficaci nel mantenere bassi valori di temperatura. Il raffreddamento ad acqua ha ottenuto i risultati migliori. Conclusioni: Risulta di primaria importanza la fase di raffreddamento durante l’uso degli inserti ultrasonici per evitare un eccessivo aumento della temperatura con la possibilità di indurre danni al tessuto parodontale circostante e all’osso alveolare. È necessario aumentare il numero dei campioni per ottenere risultati con possibili differenze statisticamente significative tra i due gruppi. Keywords: Fiber post, Retreatment, Ultrasonic tips, Temperature increase, Thermographic measurements, Parole chiave: Perni in fibra, Ritrattamento, Punte ultrasoniche, Aumento temperatura, Misurazioni termografich

Co-Circulation of SARS-CoV-2 and Other Respiratory Pathogens in Upper and Lower Respiratory Tracts during Influenza Season 2022–2023 in Lazio Region

Lower respiratory tract infections (LRTIs) occur when there is a lower airway tract infection. They are well-known for increasing the susceptibility of patients to bacterial/fungal co-infections and super-infections. In this study, we present the results of our investigation, which involved 381 consecutive patients admitted to our hospital during the Influenza season from October 2022 to April 2023. Among the 381 specimens, 75 were bronchoalveolar (BAL), and 306 were nasopharyngeal swabs (NPSs). Notably, 34.4% of the examined samples tested positive for SARS-CoV-2. Of these, we observed that 7.96% of NPSs showed positivity only for other respiratory viruses, while a substantial percentage (77%) of BAL specimens exhibited positive results only for bacterial co-infections. The results of our study not only confirm the importance of co-infections in COVID-19 but also emphasize the significance of utilizing rapid diagnostic tests (RDTs) for the timely diagnosis of LRTIs. In fact, RDTs allow for the identification of multiple pathogens, providing clinicians with useful and timely information to establish effective therapy

Rapid Determination of SARS-CoV-2 Integrity and Infectivity by Using Propidium Monoazide Coupled with Digital Droplet PCR

SARS-CoV-2 is a highly infectious virus responsible for the COVID-19 pandemic. Therefore, it is important to assess the risk of SARS-CoV-2 infection, especially in persistently positive patients. Rapid discrimination between infectious and non-infectious viruses aids in determining whether prevention, control, and treatment measures are necessary. For this purpose, a method was developed and utilized involving a pre-treatment with 50 µM of propidium monoazide (PMAxx, a DNA intercalant) combined with a digital droplet PCR (ddPCR). The ddPCR method was performed on 40 nasopharyngeal swabs (NPSs) both before and after treatment with PMAxx, revealing a reduction in the viral load at a mean of 0.9 Log copies/mL (SD ± 0.6 Log copies/mL). Furthermore, six samples were stratified based on the Ct values of SARS-CoV-2 RNA (Ct 30) and analyzed to compare the results obtained via a ddPCR with viral isolation and a negative-chain PCR. Of the five samples found positive via a ddPCR after the PMAxx treatment, two of the samples showed the highest post-treatment SARS-CoV-2 loads. The virus was isolated in vitro from both samples and the negative strand chains were detected. In three NPS samples, SARS CoV-2 was present post-treatment at a low level; it was not isolated in vitro, and, when detected, the strand was negative. Our results indicate that the established method is useful for determining whether the SARS-CoV-2 within positive NPS samples is intact and capable of causing infection

Correction: The dual-target approach in viral HIV-1 viremia testing: An added value to virological monitoring?

[This corrects the article DOI: 10.1371/journal.pone.0228192.]