Do Canine Companions Reduce College Stress?

Introduction Rates of mental health concerns among college students are rising. A recent World Health Organization Survey of ~14,000 students revealed clinically concerning scores on anxiety, depression and substance use disorder for 31% [2][3]. With these high levels of clinically concerning scores in college students, great amounts of stress are the result, which have been negatively correlated with greater feelings of loneliness and lower hedonic well-being (satisfaction in life), without proper social support [6][10]. We explored potential mental health benefits of canine companions in the college setting by collecting psychosocial measures from both dog-owners and non-dog-owners assessing their levels of anxiety, loneliness, and hedonic well-being. We also explored how the dimensions of dog cognition look when correlated with their owners\u27 scores on measures assessing their mental health. We assessed these levels of dog cognition through The Dognition Assessment, a web-based assessment for dog cognition and reasoning. Dognition measures levels of canine empathy, communication, as well as cunning (Figure 3). Dognition has been found to produce very similar results whether performed in a laboratory or in a home as citizen science [9]. • Hypothesis 1. Students living with dogs ( n = 20 ) will have lower anxiety and loneliness and higher satisfaction with life in comparison with a matched group of students not living with dogs ( n = 17). • Hypothesis 2. Among the student-canine dyads, canines with higher scores on empathy, communication, and cunning—measured via The Dognition Assessment—will have human partners with lower anxiety and loneliness and higher satisfaction with life

Delta-Aminolevulinic Acid-Mediated Photodiagnoses in Surgical Oncology: A Historical Review of Clinical Trials.

Fluorescence imaging is an emerging clinical technique for real-time intraoperative visualization of tumors and their boundaries. Though multiple fluorescent contrast agents are available in the basic sciences, few fluorescence agents are available for clinical use. Of the clinical fluorophores, delta aminolevulinic acid (5ALA) is unique for generating visible wavelength tumor-specific fluorescence. In 2017, 5ALA was FDA-approved for glioma surgery in the United States. Additionally, clinical studies suggest this agent may have utility in surgical subspecialties outside of neurosurgery. Data from dermatology, OB/GYN, urology, cardiothoracic surgery, and gastrointestinal surgery show 5ALA is helpful for intraoperative visualization of malignant tissues in multiple organ systems. This review summarizes data from English-language 5ALA clinical trials across surgical subspecialties. Imaging systems, routes of administration, dosing, efficacy, and related side effects are reviewed. We found that modified surgical microscopes and endoscopes are the preferred imaging devices. Systemic dosing across surgical specialties range between 5 and 30 mg/kg bodyweight. Multiple studies discussed potential for skin irritation with sun exposure, however this side effect is infrequently reported. Overall, 5ALA has shown high sensitivity for labeling malignant tissues and providing a means to visualize malignant tissue not apparent with standard operative light sources

Finishing the euchromatic sequence of the human genome

The sequence of the human genome encodes the genetic instructions for human physiology, as well as rich information about human evolution. In 2001, the International Human Genome Sequencing Consortium reported a draft sequence of the euchromatic portion of the human genome. Since then, the international collaboration has worked to convert this draft into a genome sequence with high accuracy and nearly complete coverage. Here, we report the result of this finishing process. The current genome sequence (Build 35) contains 2.85 billion nucleotides interrupted by only 341 gaps. It covers ∼99% of the euchromatic genome and is accurate to an error rate of ∼1 event per 100,000 bases. Many of the remaining euchromatic gaps are associated with segmental duplications and will require focused work with new methods. The near-complete sequence, the first for a vertebrate, greatly improves the precision of biological analyses of the human genome including studies of gene number, birth and death. Notably, the human enome seems to encode only 20,000-25,000 protein-coding genes. The genome sequence reported here should serve as a firm foundation for biomedical research in the decades ahead

Real-Time Visualization of Human Malignant Brain Tumor Cells with Delta-Aminolevulinic Acid (5ALA)

Poster and abstract under embargo until 5/8/2020