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Outcomes regarding browsing limits in the COVID-19 widespread: The integrative assessment.

Despite multiple efforts to reduce HIV rates among African American young adults, a significant racial disparity persists and continues to grow among this population. New approaches are needed to reach this at-risk group and engage them in prevention efforts. read more The Community Influences Transitions of Youth Health (CITY Health II) study aims to increase HIV preventive behaviors to decrease HIV rates among 18-25year old African American emerging adults living in resource-poor southern urban communities.

CITY Health II is a 5-year HIV prevention study that evaluates the efficacy of a peer-driven entertainment education intervention compared to an attention-control intervention using a cluster randomized trial design. Participants were recruited through respondent-driven sampling (RDS) to participate in a social media intervention. We enlisted eight musicians and groups to help us create an entertaining and educational web-based video series, "The Beat HIVe", for study participants to view on smartphones and share with peers on social media. Data collection interviews at baseline, 3-month, and 6-month follow-up assessed socio-demographics, risk and protective behaviors, social networks, and peer norms. Analyses will determine if participation is associated with improved HIV-related outcomes; examine whether intervention changes are mediated by perceived social norms and outcome expectations; determine whether intervention benefits vary by sociodemographic characteristics related to mediators, intervention outcome, or level of engagement; and examine the relationship between participant dose of intervention and outcomes.

Outcomes will inform ways to engage African American emerging adults through entertainment education and other strategies for increasing optimal sexual health behaviors.

NCT04320186.

NCT04320186.

Pneumonia is the most frequent complication of COVID-19, due to an aberrant host immune response that is associated with an acute respiratory distress syndrome, and, in most critical patients, with a "cytokine storm". IL-6 might play a key role in the cytokine storm and might be a potential target to treat severe and critical COVID-19. Tocilizumab is a recombinant humanized monoclonal antibody, directed against IL-6 receptor.

This multicentre study project includes a single-arm phase 2 study and a further parallel cohort, enrolling hospitalized patients with COVID-19 pneumonia and oxygen saturation at rest in ambient air ≤93% or requiring respiratory support. Patients receive tocilizumab 8mg/kg (up to 800mg) as one intravenous administration. A second administration (same dose) after 12h is optional. Two-week and one-month lethality rates are the co-primary endpoints. Sample size planned for the phase 2 study is 330 patients. The parallel cohort will include patients who cannot enter the phase 2 study because being intubated from more than 24h, or having already received tocilizumab, or the phase 2 study has reached sample size. Primary analysis will include patients enrolled in the phase 2 study. Results of the primary analysis will be validated in the prospective cohort of patients consecutively registered after phase 2 closure from March 20 to March 24, who were potentially eligible for the phase 2 study.

This trial aims to verify the safety and efficacy of tocilizumab in the Italian population with COVID-19 pneumonia and respiratory impairment. EudraCT Number 2020-001110-38; Clinicaltrials.gov ID NCT04317092.

This trial aims to verify the safety and efficacy of tocilizumab in the Italian population with COVID-19 pneumonia and respiratory impairment. EudraCT Number 2020-001110-38; Clinicaltrials.gov ID NCT04317092.The late Early Miocene site of Buluk, Kenya, has yielded fossil remains of several catarrhine primates, including 16 dentognathic specimens of the stem cercopithecoid Noropithecus bulukensis. read more With the exception of the large sample of Victoriapithecus macinnesi from the middle Miocene of Maboko Island, Kenya, the majority of stem cercopithecoid taxa are represented by small sample sizes. We describe and analyze 91 new cercopithecoid fossils collected from Buluk between 2004 and 2018, including several previously undescribed tooth positions for N. bulukensis, and provide the first evaluation of dental metric and morphological variation in this sample. The results show that the expanded Buluk sample exhibits high levels of dental variation in the postcanine tooth row, similar to V. macinnesi at Maboko, but this variation is consistent with a single-species hypothesis. Subtle differences in the shape of the I1, breadth of the C1 and P3, relative breadth of M1, upper and lower molar distal shelf lengths, the degree of M2 basal flare, and a less-developed lower molar distal lophid differentiate the dentition of N. bulukensis from V. macinnesi. Although differences exist between the N. bulukensis and V. macinnesi dental samples, the high degree of variation within each sample complicates the identification of many individual specimens. New partial maxillae and mandibles allow reassessment of previously described diagnostic differences between N. bulukensis and V. macinnesi, negating upper molar arcade shape as a diagnostic feature and confirming the existence of differences in mandibular symphyseal morphology. Overall, new fossils from Buluk provide new evidence of the dentognathic anatomy of a medium-sized cercopithecoid that coexisted with a diverse group of noncercopithecoid catarrhines at the end of the early Miocene.

Hyposalivation is a serious complication during radiotherapy (RT) and it is one of the major risk factors for the presence of candidiasis. The aim of this study was to evaluate the salivary hypofunction during the different stages of RT, analysing its connection with the presence of candidiasis.

A retrospective study was performed in 83 patients who had been diagnosed with head and neck tumours and who were undergoing RT treatment. Their salivary function was clinically analysed throughout the course of the RT treatment (before, during and after treatment) by means of the whole saliva test (WST), both unstimulated (WST-I) and stimulated (WST-II), and its relationship with candidiasis was evaluated using culture-based methods.

The WST-I before RT was 37.24±17.36mm and the WST-II was 60.70±30.98mm, with 47% of patients testing positive for candidiasis. The prevalence of candidiasis increased up to 55.8% during RT and it returned to similar pre-RT levels at the end of treatment (45.2%). A statistical significant relationship was found between low WST-I and candidiasis in the 1st (13.