Publications by authors named "MARKS N"

Physical inactivity is a leading risk factor for non-communicable diseases. Climate change is now regarded as the biggest threat to global public health. Electric micromobility (e-micromobility, including e-bikes, e-cargo bikes, and e-scooters) has the potential to simultaneously increase people's overall physical activity while decreasing greenhouse gas emissions where it substitutes for motorised transport.

View Article and Find Full Text PDF

Intentional nuclear forensics is a concept wherein the deliberate addition of benign and persistent material signatures to nuclear material can be used to reduce the time between the discovery of material outside of regulatory control and determination of its original provenance. One concept within intentional nuclear forensics involves the use of perturbed stable isotopes to generate unique isotope ratio "barcodes" to encode information (e.g.

View Article and Find Full Text PDF

Background: Parasitic nematodes significantly undermine global human and animal health and productivity. Parasite control is reliant on anthelmintic administration however over-use of a limited number of drugs has resulted in escalating parasitic nematode resistance, threatening the sustainability of parasite control and underscoring an urgent need for the development of novel therapeutics. FMRFamide-like peptides (FLPs), the largest family of nematode neuropeptides, modulate nematode behaviours including those important for parasite survival, highlighting FLP receptors (FLP-GPCRs) as appealing putative novel anthelmintic targets.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the cardiac conduction system in African lions, particularly focusing on differences in QT intervals between wild and zoo-kept lions.
  • Researchers recorded ECGs from wild, conscious lions in Africa and compared them to those from anaesthetized zoo lions, hypothesizing that zoo lions would show shorter QT intervals.
  • The findings revealed significantly longer QT intervals in wild lions (398 vs. 297 ms), indicating functional differences in cardiac health tied to physical fitness that could impact conservation efforts and veterinary care.
View Article and Find Full Text PDF

Background: The minimally invasive procedures of venous ablation and iliac vein stenting are evolving treatment options for venous insufficiency. Yet, there are no studies directly comparing the outcome of these procedures. We performed a survey on patients who had both procedures, to determine if either procedure helped more and if there is any other clinical factor related to the outcome.

View Article and Find Full Text PDF
Article Synopsis
  • - The study aims to reevaluate the relevance of contraindications for transcatheter tissue plasminogen activator (tPA) thrombolysis in treating acute limb ischemia (ALI), given recent advancements in medical techniques and technology.
  • - Researchers conducted a retrospective analysis of medical records from patients treated with tPA for ALI between September 2016 and April 2022, identifying contraindications as defined by previous trials which grouped patients into "contraindicated" and "non-contraindicated" categories based on specific health conditions.
  • - The findings showed that out of 76 patients, 24 (32%) had contraindications for tPA treatment, primarily due to factors like uncontrolled hypertension and recent invasive procedures,
View Article and Find Full Text PDF

Background: To determine the structural changes of Wallstents (Boston Scientific, Natick, MA) in vivo following deployment in iliac veins.

Methods: This retrospective single-center study was performed from September 2012 to April 2013 and included 100 office-based patients who underwent initial stent placement for nonthrombotic iliac vein lesions with Wallstent as well as a second procedure for stenting of the contralateral iliac vein. Measurements were obtained with marker balloons and the diameters of the stents were compared at the time of the index procedure to the secondary procedure.

View Article and Find Full Text PDF

The freshwater salinization syndrome (FSS), a concomitant watershed-scale increase in salinity, alkalinity, and major-cation and trace-metal concentrations, over recent decades, has been described for major rivers draining extensive urban areas, yet few studies have evaluated temporal and spatial FSS variations, or causal factors, at the subwatershed scale in mixed-use landscapes. This study examines the potential influence of land-use practices and wastewater treatment plant (WWTP) effluent on the export of major ions and trace metals from the mixed-use East Branch Brandywine Creek watershed in southeastern Pennsylvania, during the 2019 water year. Separate analysis of baseflow and stormflow subsets revealed similar correlations among land-use characteristics and streamwater chemistry.

View Article and Find Full Text PDF

The common liver fluke (Fasciola hepatica) causes the disease fasciolosis, which results in considerable losses within the global agri-food industry. There is a shortfall in the drugs that are effective against both the adult and juvenile life stages within the mammalian host, such that new drug targets are needed. Over the last decade the stem cells of parasitic flatworms have emerged as reservoirs of putative novel targets due to their role in development and homeostasis, including at host-parasite interfaces.

View Article and Find Full Text PDF

Observing animals in the wild often poses extreme challenges, but animal-borne accelerometers are increasingly revealing unobservable behaviours. Automated machine learning streamlines behaviour identification from the substantial datasets generated during multi-animal, long-term studies; however, the accuracy of such models depends on the qualities of the training data. We examined how data processing influenced the predictive accuracy of random forest (RF) models, leveraging the easily observed domestic cat () as a model organism for terrestrial mammalian behaviours.

View Article and Find Full Text PDF

Background: Polidocanol endovenous microfoam (PEM) has been used to treat lower extremity venous reflux for almost one decade with specific advantages for below knee (BK) truncal veins where thermal ablation poses a risk of injury to adjacent nerves. The current literature of the BK segment often examines short-term outcomes with modest sample sizes. We aim to identify factors associated with recanalization and reintervention in this subset of patients.

View Article and Find Full Text PDF

Background: In the last couple of decades, there has been a shift in use of endovascular procedures in vascular surgery. We aim to examine the impact of this endovascular shift on vascular trainees, determine whether the surgical experiences of trainees in the integrated residency and fellowship program changed over time, and identify differences between the two training paradigms.

Methods: Data were extracted from the Accreditation Council for Graduate Medical Education National Data Case Logs for the vascular surgery fellowship (1999-2021) and integrated residency (2012-2021) programs.

View Article and Find Full Text PDF

In recent decades, Saiga antelope (Saiga t. tatarica) mass die-offs have become more common. The mass die-off of 2015 in central Kazakhstan, recorded 140,000 individual deaths across multiple herds.

View Article and Find Full Text PDF

Aim: Hospital-acquired infections (HAIs) caused by antimicrobial-resistant ESKAPE pathogens are a significant concern for the healthcare industry, with an estimated cost of up to ${\$}$45 billion per year in the US alone. Clostridioides difficile is an additional opportunistic pathogen that also poses a serious threat to immunocompromised patients in hospitals. Infections caused by these pathogens lead to increased hospital stays and repeated readmission, resulting in a significant economic burden.

View Article and Find Full Text PDF
Article Synopsis
  • - Climate change is altering parasite transmission, influenced by factors like host density, temperature, and moisture, which can stress wild and domestic animals and challenge control methods.
  • - A model was applied to study how gut parasites interact with a montane wildlife-livestock system, focusing on host movements and their response to climate changes at different elevations.
  • - Findings reveal that host movement significantly impacts parasite infection pressure more than climate directly, indicating that understanding species migration is key to managing parasite risks for both wildlife and livestock.
View Article and Find Full Text PDF
The Progressive Veterinary Practice.

Vet Clin North Am Small Anim Pract

March 2024

Veterinary practices must be forward-thinking to effectively serve today's pet owners and move into the future. The progressive practice considers every aspect of a pet owner's journey, from searching for a veterinarian to paying their invoice, and seeks ways to improve their experience. Many tools and methods can be used to reach these goals, while also improving efficiency and veterinary team well-being.

View Article and Find Full Text PDF

The wastewater release from the Fukushima Daiichi nuclear plant is expected to have negligible effects on people and the ocean.

View Article and Find Full Text PDF

Long non-coding (lnc)RNAs are a class of eukaryotic RNA that do not code for protein and are linked with transcriptional regulation, amongst a myriad of other functions. Using a custom in silico pipeline we have identified 6,436 putative lncRNA transcripts in the liver fluke parasite, Fasciola hepatica, none of which are conserved with those previously described from Schistosoma mansoni. F.

View Article and Find Full Text PDF

Background: Endovenous thermal ablation (EVTA) of the lower extremity veins has risen to become the main treatment modality for symptomatic venous reflux disease. One of the main reported side effects of EVTA is recanalization. As of today, there is no clear protocol as to when follow-up duplex ultrasound scans should be performed.

View Article and Find Full Text PDF

In the British Isles, the European badger (Meles meles) is thought to be the primary wildlife reservoir of bovine tuberculosis (bTB), an endemic disease in cattle. Test, vaccinate or remove ('TVR') of bTB test-positive badgers, has been suggested to be a potentially useful protocol to reduce bTB incidence in cattle. However, the practice of removing or culling badgers is controversial both for ethical reasons and because there is no consistent observed effect on bTB levels in cattle.

View Article and Find Full Text PDF

Objective: We had observed that some patients with chronic venous insufficiency (CVI) had reported their lower extremity edema was worse during warmer weather. Limited research is available regarding the seasonal variation in lower extremity edema. Patients with CVI were questioned to determine whether they had experienced significant seasonal variation in their lower extremity edema and which factors might be associated with such variation.

View Article and Find Full Text PDF

Fasciola spp. liver flukes have significant impacts in veterinary and human medicine. The absence of a vaccine and increasing anthelmintic resistance threaten sustainable control and underscore the need for novel flukicides.

View Article and Find Full Text PDF

Although epidemiological studies indicate that sleep-disordered breathing (SDB) such as obstructive sleep apnea is a strong risk factor for the development of Alzheimer's disease (AD), the mechanisms of the risk remain unclear. Here we developed a method of modeling SDB in mice that replicates key features of the human condition: altered breathing during sleep, sleep disruption, moderate hypoxemia, and cognitive impairment. When we induced SDB in a familial AD model, the mice displayed exacerbation of cognitive impairment and the pathological features of AD, including increased levels of amyloid-beta and inflammatory markers, as well as selective degeneration of cholinergic basal forebrain neurons.

View Article and Find Full Text PDF

Caenorhabditis elegans is a uniquely powerful tool to aid understanding of fundamental nematode biology. While C. elegans boasts an unrivalled array of functional genomics tools and phenotype bioassays the inherent differences between free-living and parasitic nematodes underscores the need to develop these approaches in tractable parasite models.

View Article and Find Full Text PDF

Solid organ transplant recipients (SOTr) remain at risk of severe COVID-19. Several previous early therapies are no longer effective against new circulating variants. We performed a prospective cohort study in outpatient adult SOTr during the omicron BA.

View Article and Find Full Text PDF