Emerging Biosensing Technologies for the Diagnostics of Viral Infectious Diseases.

Several viral infectious diseases appear limitless since the beginning of the 21st century, expanding into pandemic lengths. Thus, there are extensive efforts to provide more efficient means of diagnosis, a better understanding of acquired immunity, and improved monitoring of inflammatory biomarkers, as these are all crucial for controlling the spread of infection while aiding in vaccine development and improving patient outcomes. In this regard, various biosensors have been developed recently to streamline pathogen and immune response detection by addressing the limitations of traditional methods, including isothermal amplification-based systems and lateral flow assays. This review explores state-of-the-art biosensors for detecting viral pathogens, serological assays, and inflammatory biomarkers from the material perspective, by discussing their advantages, limitations, and further potential regarding their analytical performance, clinical utility, and point-of-care adaptability. Additionally, next-generation biosensing technologies that offer better sensitivity and selectivity, and easy handling for end-users are highlighted. An emerging example of these next-generation biosensors are those powered by novel synthetic biology tools, such as clustered regularly interspaced short palindromic repeats (CRISPR) with CRISPR-associated proteins (Cas), in combination with integrated point-of-care devices. Lastly, the current challenges are discussed and a roadmap for furthering these advanced biosensing technologies to manage future pandemics is provided.

Intraoperative Methylprednisolone and Neurodevelopmental Outcomes in Infants After Cardiac Surgery.

BACKGROUND: Neurodevelopmental impairment is an important consequence for survivors of surgery for critical congenital heart disease. This study sought to determine whether intraoperative methylprednisolone during neonatal cardiac surgery is associated with neurodevelopmental outcomes at 12 months of age and to identify early prognostic variables associated with neurodevelopmental outcomes. METHODS: We performed a planned secondary analysis of a 2-center, double-blind, randomized, placebo-controlled trial of intraoperative methylprednisolone in neonates undergoing cardiac surgery. A brain injury biomarker was measured during surgery. Bayley Scales of Infant and Toddler Development-III (BSID-III) were performed at 12 months of age. Two-sample t tests and generalized linear models were used. RESULTS: There were 129 participants (n = 61 methylprednisolone; n = 68 placebo). There were no significant differences in BSID-III scores and brain injury biomarker levels between treatment groups. Participants who underwent a palliative (versus corrective) procedure had lower mean BSID-III cognitive (101 ± 15 versus 106 ± 14; P = .03) and motor scores (85 ± 18 versus 94 ± 16; P < .01). Longer ventilation time was associated with lower motor scores. Longer cardiac intensive care unit stay was associated with lower cognitive, language, and motor scores. Cardiopulmonary bypass time, aortic cross-clamp time, and deep hypothermic circulatory arrest were not associated with BSID-III scores. CONCLUSIONS: Neurodevelopmental outcomes were not associated with intraoperative methylprednisolone or intraoperative variables. Participants who underwent a neonatal palliative (versus corrective) procedure had longer cardiac intensive care unit stays and worse neurodevelopmental outcomes at 1 year. This work suggests that interventions focused solely on the operative period may not be associated with a long-term neurodevelopmental benefit.

Discrimination of single-point mutations in unamplified genomic DNA via Cas9 immobilized on a graphene field-effect transistor.

Simple and fast methods for the detection of target genes with single-nucleotide specificity could open up genetic research and diagnostics beyond laboratory settings. We recently reported a biosensor for the electronic detection of unamplified target genes using liquid-gated graphene field-effect transistors employing an RNA-guided catalytically deactivated CRISPR-associated protein 9 (Cas9) anchored to a graphene monolayer. Here, using unamplified genomic samples from patients and by measuring multiple types of electrical response, we show that the biosensors can discriminate within one hour between wild-type and homozygous mutant alleles differing by a single nucleotide. We also show that biosensors using a guide RNA-Cas9 orthologue complex targeting genes within the protospacer-adjacent motif discriminated between homozygous and heterozygous DNA samples from patients with sickle cell disease, and that the biosensors can also be used to rapidly screen for guide RNA-Cas9 complexes that maximize gene-targeting efficiency.

A Focus Group Evaluation of Breathe Easier: A Mindfulness-Based mHealth App for Survivors of Lung Cancer and Their Family Members.

PURPOSE: To explore attitudes and acceptance (i.e., intent for future adoption) of survivors of lung cancer and their family members toward a dyad-focused mHealth mindfulness-based intervention (MBI). APPROACH: Focus groups. SETTING: Community hospital setting in South Carolina. PARTICIPANTS: Survivors n = 11 (M = 64.6 years; 73% female; 64% African American) of non-small cell lung cancer (stage I-IIIa) and their family members, n = 8 (M = 58.6 years; 38% female; 75% African American). INTERVENTION: A fully functional prototype mHealth app to deliver a tailored MBI for survivors of lung cancer and their family members. METHOD: Semi-structured focus groups were conducted and assessed using thematic data analysis to identify the benefits, concerns, needs, and expectations of the app. RESULTS: Convenience and health were the top benefits of using the app, while cost and difficulty of use were the top concerns. Survivors mentioned benefits more than their family members did. Participants felt positively about adding a community network to the app. Finally, participants expected to hear about Breathe Easier from their care provider. CONCLUSION: Participants perceived a benefit to having credible health information delivered through an mHealth app. Guidance and credible health information regarding lung cancer survivorship should be accessible and convenient for everyone impacted by the disease. Thus, future research should explore platforms for a virtual support system and understanding dissemination of mHealth apps through health care providers.

A Qualitative Cultural Sensitivity Assessment of the Breathe Easier Mobile Application for Lung Cancer Survivors and Their Families.

PURPOSE: To evaluate the cultural sensitivity of the Breathe Easier mobile health application for African American lung cancer survivors and their families. Breathe Easier is an intervention designed to teach strategies to combat symptoms related to lung cancer. PARTICIPANTS & SETTING: 12 African American lung cancer survivors and their family members were recruited from an American College of Surgeons-approved cancer program in South Carolina. METHODOLOGIC APPROACH: Participants completed in-depth interviews, which were guided by the Cultural Sensitivity Assessment Tool and the Cultural Sensitivity Checklist. Two researchers performed open and axial coding to conceptually organize the data. FINDINGS: Multiple culturally relevant themes emerged, including benefits, concerns, and suggestions related to content literacy and inclusiveness, as well as acceptability of and motivations for using the mobile application. However, lung cancer survivors and their family members reported being more concerned about accessing accurate survivorship information. IMPLICATIONS FOR NURSING: Attention to health literacy, eHealth literacy, and cultural sensitivity may enhance patient outcomes, and nurses can advocate for patients regarding these communication issues.

Impact of complementary and alternative medicine offerings on cancer patients' emotional health and ability to self-manage health conditions.

OBJECTIVES: This descriptive study investigated how cancer patient characteristics and utilization of CAM resources, services, and activities at a regional cancer center were associated with patients' understanding of their health needs, emotional health, and their ability to self-manage their condition. DESIGN: Cross-sectional questionnaire. Sixty-one patients completed a mailed 17-item paper and pencil survey about their sociodemographics, use of CAM offerings, barriers, and perceived benefits. SETTING: Mail-based survey completed by cancer patients in a southern state. MAIN OUTCOME MEASURES: As a result of participating in the center's cancer support services, patients indicated if: (1) they had a better understanding of their health needs; (2) their emotional health has improved; and (3) they take better care of themselves when they are at home and in the community. RESULTS: Participants reported using 0.93 (±1.20) CAM activities (e.g., yoga), 0.62 (±0.71) resources (e.g., the library), and 1.62 (±1.34) services (e.g., monthly support groups), although also reported experiencing 0.74 (±0.81) barriers (e.g., transportation) to accessing these offerings. Perceived benefits were interrelated, where those perceiving CAM offerings to improve their understanding of their health needs also perceived improved emotional health (χ2 = 27.93, P < 0.001) and better self-care (χ2 = 30.90, P < 0.001). CONCLUSIONS: Greater utilization of CAM offerings was also associated with greater perceived benefits. These results highlight the benefits of CAM therapies for cancer patients' well-being. Integration of CAM therapies in standard cancer care should be encouraged to complement cancer treatment.

Association of intraoperative circulating-brain injury biomarker and neurodevelopmental outcomes at 1 year among neonates who have undergone cardiac surgery.

BACKGROUND: Neurodevelopmental disability is the most significant complication for survivors of infant surgery for congenital heart disease. In this study we sought to determine if perioperative circulating brain injury biomarker levels are associated with neurodevelopmental outcomes at 12 months. METHODS: A secondary analysis of a randomized controlled trial of neonates who underwent cardiac surgery was performed. Glial fibrillary acidic protein (GFAP) was measured: (1) before skin incision; (2) immediately after bypass; (3) 4 and (4) 24 hours postoperatively. Linear regression models were used to determine an association with the highest levels of GFAP and Bayley Scales of Infant and Toddler Development third edition (BSID) composite scores. RESULTS: There were 97 subjects who had cardiac surgery at a mean age of 9 ± 6 days and completed a BSID at 12.5 ± 0.6 months of age. Median (25th-75th percentile) levels of GFAP were 0.01 (0.01-0.02), 0.85 (0.40-1.55), 0.07 (0.05-0.11), and 0.03 (0.02-0.04) ng/mL at the 4 time points, respectively. In univariate analysis GFAP was negatively associated with cognitive, language, and motor composite scores. GFAP levels immediately after bypass differed between institutions; 1.57 (0.92-2.48) versus 0.77 (0.36-1.21) ng/mL (P = .01). After adjusting for center and potential confounders, GFAP was independently associated with BSID motor score (P = .04). CONCLUSIONS: Higher GFAP levels at the time of neonatal cardiac operations were independently associated with decreased BSID motor scores at 12 months. GFAP might serve as a diagnostic means to acutely identify perioperative brain-specific injury and serve as a benchmark of therapeutic efficacy for investigational treatments, discriminate center-specific effects, and provide early prognostic information for intervention.

The Relationship between Behavior Ratings and Concurrent and Subsequent Mental and Motor Performance in Toddlers Born at Extremely Low Birth Weight.

When predicting child developmental outcomes, reliance on children's scores on measures of developmental functioning alone might mask more subtle behavioral difficulties especially in children with developmental risk factors. The current study examined predictors and stability of examiner behavior ratings and their association with concurrent and subsequent mental and motor performance in toddlers born at extremely low birth weight. Toddlers were evaluated using the Behavior Rating scale (BRS) and the mental and psychomotor indexes of the Bayley-II at 18 and 30 months corrected age. BRS total and factor scores showed moderate stability between 18 and 30 months. These scores also predicted 30-month Mental Scale and Psychomotor Scale scores above and beyond prior mental and motor performance. Our findings suggest that early behavior ratings are associated with child mental and motor performance; therefore, behavior ratings might be useful in identifying toddlers at developmental risk and who might benefit from early intervention.