Effect of COVID-19 pandemic on hospital admission rates of patients with malnutrition and/or neuromuscular complications after bariatric surgery

Objectives: To assess and compare the admission rates of medical complications (MC) after Bariatric and metabolic surgery (BMS) over a period of 6 years prior to and during the pandemic. Bariatric and metabolic surgery could be associated with MC, including malnutrition and neuromuscular complications (NC). Methods: Retrospective study of all patients admitted to Hamad General Hospital, Qatar, with post-BMS MC before (n=12, January 2014-December 2019) and  during  the  pandemic  (n=36, January 2020-31 May 2021). We assessed 17 nutrients, nerve conduction/electromyography diagnosed NC, and we explored whether patients had clustering of gastrointestinal symptoms, barium meal findings, excess weight loss percentage (EWL%), or non-compliance with post-BMS clinic visits and multivitamin supplements. Results: The sample comprised 95.8% sleeve gastrectomies, mean age was 26.62 years, and 54.2% were women. Admissions increased from pre-pandemic 0.29 per 100 BMS to 11.04 during the pandemic (p<0.0001), despite no significant differences in patients' demographic/surgical profiles, nutrient deficiencies, or MC characteristics. Across the sample, the most frequent neuropathies were mixed sensory/motor/axonal;albumin and total protein deficiencies were observed in 54.2% and 29.2% of patients, respectively (no pre-pandemic/ pandemic differences). Most frequent micronutrient and trace element deficiencies were potassium, vitamin D, and zinc (no pre-pandemic/pandemic differences). Admitted patients had high non-compliance with multivitamins supplementation (87.5%), high post-BMS nausea/vomiting (66.7%, 62.6%, respectively), high EWL% (mean=74.19±27.84%), no post-BMS outpatient follow up (75% during pre-pandemic, 88.9% during pandemic) (no pre-pandemic/pandemic differences for all), and gastroesophageal reflux (higher during the pandemic, p=0.016). Conclusion: Despite the reduced number of BMS during the pandemic, hospital admissions of MC significantly increased.

Nutrition, Epigenetics, and Major Depressive Disorder: Understanding the Connection.

Major depressive disorder (MDD) is a complex, multifactorial disorder of rising prevalence and incidence worldwide. Nearly, 280 million of people suffer from this leading cause of disability in the world. Moreover, patients with this condition are frequently co-affected by essential nutrient deficiency. The typical scene with stress and hustle in developed countries tends to be accompanied by eating disorders implying overnutrition from high-carbohydrates and high-fat diets with low micronutrients intake. In fact, currently, coronavirus disease 2019 (COVID-19) pandemic has drawn more attention to this underdiagnosed condition, besides the importance of the nutritional status in shaping immunomodulation, in which minerals, vitamins, or omega 3 polyunsaturated fatty acids (ω-3 PUFA) play an important role. The awareness of nutritional assessment is greater and greater in the patients with depression since antidepressant treatments have such a significant probability of failing. As diet is considered a crucial environmental factor, underlying epigenetic mechanisms that experience an adaptation or consequence on their signaling and expression mechanisms are reviewed. In this study, we included metabolic changes derived from an impairment in cellular processes due to lacking some essential nutrients in diet and therefore in the organism. Finally, aspects related to nutritional interventions and recommendations are also addressed.

Overview of the Potential Role of Trace Elements in COVID-19

COVID-19 is constantly evolving due to genetic mutation, and different strains have been discovered all over the world. These variants appear to be transmitted more strongly than other types, potentially contributing to an increase in cases and deaths. Currently, there are several COVID-19 vaccines on the market. Despite the availability of these commercial vaccines, the number of admitted patients continues to rise in various parts of the world. The vaccines' consistency and efficacy, in terms of variations between effects of different brands, remain ambiguous due to viral variants. Trace element deficiencies have been shown to reduce the immune response to invader pathogens and contribute to global health issues. Deficiencies in vitamins, copper, selenium, and zinc have been shown in clinical trials to alter the immune response and increase the risk of viral infections. Due to the antiviral and anti-inflammatory properties of these micronutrients, dietary supplementation of these components is likely to increase the immune response and lower the severity of COVID-19 infection. Based on existing research, therapeutic use of important trace element supplements, such as minerals (Cu, Se, and Zn) or vitamins (such as vitamins D and C), may be a preventive and consistent strategy for strengthening the immune system against the emerging pandemic COVID-19 and its novel variants.

Micronutrient malnutrition across the life course, sarcopenia and frailty.

Micronutrient malnutrition, the deficiency of vitamins or minerals, impacts on physical and mental health, in clinical and general populations, across the life course. In older western populations the high prevalence and impact of micronutrient malnutrition is less well recognised. Low- and middle-income countries are experiencing the 'double burden of disease' where malnutrition coexists alongside the non-communicable diseases of aging, obesity, type 2 diabetes and cardiovascular disease. Held in December 2020, the Winter Conference of the Nutrition Society was designed to cover new areas of research and concern in micronutrient malnutrition across the life course. Common themes arising from the conference were: 1) The continuing high prevalence of micronutrient malnutrition across the life-course, in diverse populations, in high, middle and low-income countries. 2) That multiple deficiencies of micronutrients frequently exist. 3) The primary cause of deficiency is poor quality diets, of low diversity, low in micronutrient dense foods. 4) Clinical conditions, medications for common non-communicable diseases, and environmental conditions, interact with and exacerbate the effects of poor diet quality. 5) Understanding of the mechanistic effects of micronutrients is still emerging. 6) Micronutrients are necessary for maintaining immune function, which has importance for the COVID-19 epidemic. 7) Better biomarkers are needed detect and understand the effects of deficiency. 7) Dietary recommendations need to be updated regularly. Further research is needed in all these areas. Comprehensive public health and government approaches to ensure access and affordability of good quality foods to populations of all ages, particularly during the ongoing COVID-19 epidemic, are crucial.