Novel nutrition strategies in gastric and esophageal cancer.

Introduction: Advances in treatment strategies for gastric and esophageal cancer have led to improved long-term outcomes, however the local and systemic effects of tumor growth, neoadjuvant therapies and surgery, results in specific nutritional challenges. Comprehensive nutritional evaluation and support represents a core component of multidisciplinary holistic care for this patient population.

Areas Covered: This review provides a detailed overview of the nutritional challenges in gastric and esophageal cancer, with a focus on malignant obstruction, preoperative optimization and nutrition in survivorship.

Conducting Pairwise and Network Meta-analyses in Updated and Living Systematic Reviews: a Scoping Review Protocol.

Objective: The objective of this scoping review will be to describe existing guidance documents or studies reporting on the conduct of meta-analyses in updated systematic reviews (USRs) or living systematic reviews (LSRs).

Introduction: The rapid increase in the medical literature poses a substantial challenge in keeping systematic reviews up to date. In LSRs, a review is updated with a pre-specified frequency or when some other signalling criterion is triggered.

Early-Delayed Radiotoxicity Associated With Stereotactic Radiation Therapy Following a Daily 6 Gy × 5 (30 Gy) Protocol for Presumed Canine Intracranial Meningiomas.

Early-delayed side effects (EDSEs) following treatment of canine intracranial meningiomas with 1-3-fraction stereotactic radiation therapy (SRT) can cause worsening neurologic signs, and one potential method of mitigating this toxicity is reducing the dose per fraction. Twenty dogs with imaging-diagnosed intracranial meningiomas and telephone follow-up of at least 6 months received a protocol of 6 Gy × 5, daily (30 Gy). A 'possible EDSE' was defined as mental dullness, neurologic exacerbation of existing neurologic signs or new neurologic signs occurring within 1-4 months of completing SRT, regardless of the response to steroids and even if an MRI was not performed.

In Situ Raman Spectroscopy for Early Corrosion Detection in Coated AA2024-T3.

Here we describe the synthesis and evaluation of a molecular corrosion sensor that can be applied in situ in aerospace coatings, then used to detect corrosion after the coating has been applied. A pH-sensitive molecule, 4-mercaptopyridin (4-MP), is attached to a gold nanoparticle to allow surface-enhanced Raman-scattering (SERS) for signal amplification. These SERS nanoparticles, when combined with an appropriate micron-sized carrier system, are incorporated directly into an MIL-SPEC coating and used to monitor the process onset and progression of corrosion using pH changes occurring at the metal-coating interface.

The prevalence of HIV pre-exposure prophylaxis (HIV-PrEP) use and HIV-PrEP-to-need ratio in nine Canadian provinces, 2018-2021.

Background: Measuring trends in HIV pre-exposure prophylaxis (HIV-PrEP) uptake is important to inform planning for prevention programs and policies. The HIV-PrEP-to-need ratio (PnR) is a construct used by public health organizations to explore disparities in the provision of HIV-PrEP across geographic areas and demographic categories (e.g.