Introduction Use of virtual reality (VR) in healthcare has expanded in recent years. The challenges faced by patients with prolonged COVID-19-related hospitalizations – social isolation, disability, neurologic sequelae, adjustment-related anxiety, depression, and stress – may be mitigated by the novel use of VR as one modality of a comprehensive rehabilitation plan. This descriptive study aimed to understand patient satisfaction and perceived benefit of virtual reality on a COVID-19 recovery unit, as well as the logistical and operational feasibility of providing VR content for patients and staff. Materials and methods During the COVID-19 surge in New York City in 2020, the COVID-19 Recovery Unit (CRU) of a large academic hospital invited patients and staff to participate in VR sessions with three categories of experience: (1) Guided meditation, (2) Exploration of natural environments, (3) Cognitive stimulation games. Patients and staff were surveyed about satisfaction and perceived benefit. Results 13 patients and 11 staff were surveyed, with median patient satisfaction scores of 8.42 out of 10, with ten representing “extremely satisfied,” and median staff satisfaction scores of 9.45. 13/13 patients answered “yes” to recommending the therapy to others, and 12/13 answered “yes” to perceived enhancement of their treatment. 11/11 staff answered “yes” to recommending the therapy to others, and 11/11 answered “yes” to perceived enhancement of their wellbeing. Discussion A VR program implemented on a COVID-19 rehabilitation unit for patients and healthcare providers was rated as highly satisfactory with perceived benefit by survey respondents. Participants commented that the use of VR was useful in coping with isolation and loneliness, and could be implemented within the context of clinical care for COVID-19 patients as part of a comprehensive rehabilitation model. The use of VR was also logistically and operationally feasible on the CRU. Future work to compare benefits of VR to standard neuropsychological rehabilitation is needed.

Aging is associated with changes in circulating levels of various molecules, some of which remain undefined. We find that concentrations of circulating taurine decline with aging in mice, monkeys, and humans. A reversal of this decline through taurine supplementation increased the health span (the period of healthy living) and life span in mice and health span in monkeys. Mechanistically, taurine reduced cellular senescence, protected against telomerase deficiency, suppressed mitochondrial dysfunction, decreased DNA damage, and attenuated inflammaging. In humans, lower taurine concentrations correlated with several age-related diseases and taurine concentrations increased after acute endurance exercise. Thus, taurine deficiency may be a driver of aging because its reversal increases health span in worms, rodents, and primates and life span in worms and rodents. Clinical trials in humans seem warranted to test whether taurine deficiency might drive aging in humans.

A review of the literature indicated an association among high nitrate ingestion, methemoglobinemia, and pathologic changes in bronchi and lung parenchyma. The present study examined a possible correlation among drinking water nitrate concentration, methemoglobin levels, cytochrome b(5) reductase activity, and acute respiratory tract infection with a history of recurrence (RRTI). Our study was conducted in five village units in the state of Rajasthan, India, with nitrate concentrations of 26, 45, 95, 222, and 459 mg NO(3) ion/L. We randomly selected 88 children. The children were up to 8 years of age, age matched, and represented 10% of the total population of these areas. We obtained detailed RRTI histories and conducted medical examinations. Methemoglobin levels and cytochrome b(5) reductase activity were estimated biochemically. The data collected were statistically analyzed using spreadsheet software on a personal computer. We observed strong interdependence between methemoglobin levels and RRTI in children up to 8 years of age. Methemoglobin levels alone explained 80% of the variation in the RRTI cases. This study indicates that methemoglobinemia, secondary to high nitrate ingestion in drinking water, causes RRTI. Increased production of methemoglobin and free radicals of nitric oxide and oxygen due to nitrate metabolism in the body lead to alveolar damage and mismatching of ventilation and perfusion, which may be the reason for high mortality in children due to RRTI.ImagesFigure 1

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