Publications by authors named "Russ A"

The revised EFSA 2023 Guidance on the risk assessment of plant protection products for birds and mammals emphasises vulnerability as a relevant criterion for focal species (FS) selection rather than prevalence. The EFSA 2023 Guidance suggests to rank FS candidates for each dietary group according to their expected exposure by estimating a species-specific daily dietary dose (DDD). Species experiencing higher exposure would be ranked as potentially more vulnerable and can be identified as FS candidates.

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  • Glioblastoma is described as immunologically "cold," making it resistant to solo immune-checkpoint inhibitors (ICI) like pembrolizumab, although neoadjuvant use may improve survival based on prior studies.
  • A study involving 25 additional patients analyzed tumor tissue for gene signatures and found that neoadjuvant pembrolizumab led to decreased cancer proliferation genes and increased T-cell activity, indicating a specific response to this treatment.
  • Despite observing these molecular changes, the study did not confirm an overall survival benefit from neoadjuvant pembrolizumab, suggesting that some patients may inherently resist ICI and may need additional therapies for effective treatment.
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Unlabelled: In 2022, over 1,000,000 people from Ukraine fled to Germany, mostly women and children. The aim of this study was to determine health status and socio-demographic background of Ukrainian refugee minors in Germany and to compare that to German minors. In this study, Ukrainian refugees of all ages, who voluntarily made contact with the study centres via flyers or refugee shelters, were interviewed with the help of trained interpreters from 09-12/2022.

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Background: Biomedical and lifestyle factors in Western populations have significantly shifted in recent decades, influencing public health and contributing to the increasing prevalence of non-communicable diseases (NCDs) that share inflammation as common pathology.

Methods: We investigated the relationship between these factors and 11 NCDs in the cross-sectional FoCus cohort (n = 1220), using logistic regression models. Associations with age-at-disease-onset were specifically analyzed for type 2 diabetes (T2D, low-grade chronic inflammation) and inflammatory bowel disease (IBD, high-grade chronic inflammation) in disease-specific cohorts (FoCus-T2D, n = 514; IBD-KC, n = 1110).

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Energy content, moisture content, and energy assimilation efficiency are essential parameters in the food intake rate (FIR) and exposure calculations for bird and mammal risk assessments. The updated European Food Safety Authority guidance document on risk assessment for birds and mammals summarizes these parameters for different food items. For seed treatments, values for cereal seeds are proposed as surrogates for other crops.

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Objective: Advancements in microsurgical technique and technology continue to improve outcomes in patients with skull base tumor. The primary cranial nerve eight monitoring systems used in hearing preservation surgery for vestibular schwannomas (VSs) are direct cranial nerve eight monitoring (DCNEM) and auditory brainstem response (ABR), although current guidelines are unable to definitively recommend one over the other due to limited literature on the topic. Thus, further research is needed to determine the utility of DCNEM and ABR.

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The aging population suffers from memory impairments. Slow-wave activity (SWA) is composed of slow (0.5-1 Hz) and delta (1-4 Hz) oscillations, which play important roles in long-term memory and working memory function respectively.

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  • Colon cancer outcomes have improved in the U.S. over the past thirty years, but disparities remain, particularly in rural areas, where distance to treatment facilities may impact diagnosis and mortality rates.
  • An analysis of data from the National Cancer Database showed that over 356,000 adult colon cancer patients experienced more advanced disease stages and longer wait times for surgery as their distance from treatment centers increased.
  • The study concluded that living further from treatment facilities is associated with higher mortality rates and highlights the need for targeted interventions to improve cancer care access in rural populations.
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The proposed use of equivalence tests instead of difference tests in the revised guidance on the risk assessment of plant protection products for bees is a reasonable approach given an adverse effect was observed in the lower tier studies, using the hypothesis that there is a risk as the null hypothesis places the burden to prove the opposite on the other side. However, some uncertainties regarding the application of equivalence tests in field studies are discussed in the present study. Here, we compare equivalence and difference testing methods using a control dataset of a honey bee field effect study conducted in northern Germany in 2014.

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Background: Despite the high prevalence and major disability associated with fatigue and cognitive deficits after SARS-CoV-2 infection, little is known about long-term trajectories of these sequelae. We aimed to assess long-term trajectories of these conditions and to identify risk factors for non-recovery.

Methods: We analyzed longitudinal data from the population-based COVIDOM/NAPKON-POP cohort in Germany.

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Background: Alzheimer's disease (AD) patients exhibit memory disruptions and profound sleep disturbances, including disruption of deep non-rapid eye movement (NREM) sleep. Slow-wave activity (SWA) is a major restorative feature of NREM sleep and is important for memory consolidation.

Methods: We generated a mouse model where GABAergic interneurons could be targeted in the presence of APPswe/PS1dE9 (APP) amyloidosis, APP-GAD-Cre mice.

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  • This study investigates the impact of COVID-19 on female patients with breast cancer, particularly focusing on underrepresented racial/ethnic populations from March 2020 to June 2021 in the US.
  • The analysis included 1,383 patients, revealing that older age and certain racial/ethnic groups (such as Black and Asian American/Pacific Islanders) showed higher odds of severe COVID-19 outcomes.
  • Key findings noted that factors like worse performance status, pre-existing health conditions, and active cancer significantly contributed to increased severity, while variables like Hispanic ethnicity and anti-cancer therapy type did not impact outcomes as much.
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Patients with Alzheimer's disease (AD) exhibit non-rapid eye movement (NREM) sleep disturbances in addition to memory deficits. Disruption of NREM slow waves occurs early in the disease progression and is recapitulated in transgenic mouse models of beta-amyloidosis. However, the mechanisms underlying slow-wave disruptions remain unknown.

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The key pathologic entities driving the destruction of synaptic function and integrity during the evolution of Alzheimer's disease (AD) remain elusive. Astrocytes are structurally and functionally integrated within synaptic and vascular circuitry and use calcium-based physiology to modulate basal synaptic transmission, vascular dynamics, and neurovascular coupling, which are central to AD pathogenesis. We used high-resolution multiphoton imaging to quantify all endogenous calcium signaling arising spontaneously throughout astrocytic somata, primary processes, fine processes, and capillary endfeet in the brain of awake APP/PS1 transgenic mice (11 male and 6 female mice).

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  • The study investigates the impact of COVID-19 on female breast cancer patients using a large U.S. registry during 2020-2021, focusing on underrepresented racial/ethnic populations.
  • Key findings show that older age, being Black, Asian American/Pacific Islander, and having worse overall health significantly increase the severity of COVID-19 in these patients.
  • The overall hospitalization rate was 37% and mortality rate 9%, but these rates varied depending on the active status of breast cancer in patients.
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Patients with Alzheimer's disease (AD) exhibit non-rapid eye movement (NREM) sleep disturbances in addition to memory deficits. Disruption of NREM slow waves occurs early in the disease progression and is recapitulated in transgenic mouse models of beta-amyloidosis. However, the mechanisms underlying slow-wave disruptions remain unknown.

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Context: Burnout, a state of physical or emotional exhaustion, is a concern within athletic training, as between 17% and 40% of athletic trainers (ATs) report high levels of burnout. Adverse childhood experiences (ACEs) are linked with higher levels of burnout in other health professions.

Objective: To compare burnout with ACEs in ATs.

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Plant lipids are important as alternative sources of carbon and energy when sugars or starch are limited. Here, we applied combined heat and darkness or extended darkness to a panel of ∼300 Arabidopsis (Arabidopsis thaliana) accessions to study lipid remodeling under carbon starvation. Natural allelic variation at 3-KETOACYL-COENZYME A SYNTHASE4 (KCS4), a gene encoding an enzyme involved in very long chain fatty acid (VLCFA) synthesis, underlies the differential accumulation of polyunsaturated triacylglycerols (puTAGs) under stress.

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Alzheimer's disease (AD) is characterized by progressive memory loss and cognitive decline. These impairments correlate with early alterations in neuronal network activity in AD patients. Disruptions in the activity of individual neurons have been reported in mouse models of amyloidosis.

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Methylation of the mRNA 5' cap by cellular methyltransferases enables efficient translation and avoids recognition by innate immune factors. Coronaviruses encode viral 2'-O-methyltransferases to shield their RNA from host factors. Here, we generate recombinant SARS-CoV-2 harboring a catalytically inactive 2'-O-methyltransferase Nsp16, Nsp16mut, and analyze viral replication in human lung epithelial cells.

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Introduction: When influenza (flu) season arrives, it is easy for emergency department clinicians to anchor on the diagnosis of flu, sending patients on their way with or without anti-influenza medication. It is important not to miss the outlier - the patient who seems to have typical symptoms of influenza but with certain subtleties that should make one consider expanding the differential diagnosis.

Case Report: We describe an 11-year-old previously healthy male who presented with eight days of fever, myalgias, cough, congestion, and headache in the context of positive influenza exposure.

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Immersive Virtual Reality (VR) with head-mounted displays (HMD) can be a promising tool for increasing adherence to exercise in older adults. However, there is little known about the effectiveness of an interactive multimodal therapy in VR for older chronic back pain (CBP) patients. The aim of the exploratory randomized controlled trial was to examine the preliminary effectiveness of a VR multimodal therapy for older adults with CBP in a laboratory setting over a period of four weeks.

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Background: Post-operative ileus and delayed return of gastrointestinal function are complications seen frequently in patients undergoing colorectal surgery. Many enhanced recovery after surgery protocols include alvimopan to inhibit the effects of opiates in the gastrointestinal tract and lidocaine to augment analgesics. Limited data exist regarding alvimopan's efficacy in opiate-sparing regimens.

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Malignant peripheral nerve sheath tumors (MPNSTs) represent a rare subtype of neural crest cell-derived soft tissue sarcomas (STS). Standard of care therapy comprises surgical resection followed by adjuvant radiation, and most clinical studies have demonstrated finite survival benefit of radiation and chemotherapy. In metastatic disease, palliative chemotherapy provides very limited efficacy.

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Recent advances in leaf fluorescence measurements and canopy proximal remote sensing currently enable the non-destructive collection of rich diurnal and seasonal time series, which are required for monitoring vegetation function at the temporal and spatial scales relevant to the natural dynamics of photosynthesis. Remote sensing assessments of vegetation function have traditionally used actively excited foliar chlorophyll fluorescence measurements, canopy optical reflectance data and vegetation indices (VIs), and only recently passive solar induced chlorophyll fluorescence (SIF) measurements. In general, reflectance data are more sensitive to the seasonal variations in canopy chlorophyll content and foliar biomass, while fluorescence observations more closely relate to the dynamic changes in plant photosynthetic function.

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