by Gabrielle M Mey  and Jacob T Mey

Received: 24 August 2022;  Published: 16 November 2022;  doi: 10.21926/rpn.2204022

This narrative review highlights recent advances and ongoing trials using nutrition approaches for healthy aging. Focus will be placed on nutrition therapies that target cognition (“the mind”) and mobility (“the muscle”), both critical components to maintaining a high quality of life for older adults. For “the mind,” two seemingly incongruent therapies are being investigated to improve cognition–the MIND diet (high in carbohydrates and anti-oxidant fruits and vegetables) and the ketogenic diet (low in carbohydrates [...]

by Dean M. Cordingley  and Stephen M. Cornish

Received: 04 July 2022;  Published: 12 October 2022;  doi: 10.21926/rpn.2204021

Exercise induced muscle damage occurs following strenuous and unfamiliar exercise and results in biomarkers of muscle damage and inflammation in the circulation. Creatine (Cr) is a commonly utilized nutritional supplement which has been proposed to enhance post-exercise recovery and has been suggested to decrease exercise induced inflammation. Exercise is well recognized to be beneficial for older adults to maintain skeletal muscle mass and strength as well as promote health for other biological systems. However, o [...]

by Sahar M Afeef  , Laura A Barrett  , Julia K Zakrzewski-Fruer  and Keith Tolfrey

Received: 30 March 2022;  Published: 15 August 2022;  doi: 10.21926/rpn.2203020

Exercise-induced moderation of postprandial glycaemia in adolescents is unclear and has not been examined under free-living conditions. We assessed the effect of moderate-intensity exercise (MIE) and high-intensity intermittent exercise (HIIE) bouts on subsequent postprandial glycaemic responses across three standard school days. Fourteen healthy adolescents (13 ± 1 years) completed three conditions in the following order across consecutive days: MIE, 30-min continuous brisk walking; CON, no-exercise control; HIIE, [...]

by Lindsey Cundra  , Michael Saadeh  , Manasa Vallabhaneni  , Kevin Houston  , Steve D’Souza  and David A Johnson

Received: 28 April 2022;  Published: 09 August 2022;  doi: 10.21926/rpn.2203019

Inflammatory bowel disease (IBD), which includes ulcerative colitis, and Crohn’s disease, is a chronic relapsing-remitting inflammatory state of the gastrointestinal (GI) system. The cause of IBD is multifactorial, encompassing factors of genetics, environment, and the host immune system, initiating a complex interplay of maladaptive host immune responses and subsequent chronic inflammation. Aberrant host immune responses are at least in part due to changes in the commensal microbiome, which can in turn affect the [...]

by Ankit Patel  , Kevin Houston  , Michael Saadeh  , Ana Vilela  , Byung-Soo Yoo  , Steve M. D’Souza  and David A. Johnson

Received: 24 April 2022;  Published: 01 August 2022;  doi: 10.21926/rpn.2203018

Colorectal cancer (CRC) is currently the third most common cancer within the United States among both males and females, with increasing rates occurring in younger individuals compared to the past. Multiple environmental and social aspects including diet may be contributing to this increase in CRC rates. The aim of this review is to examine foods containing high fructose corn syrup, processed meats, and red meats which have shown to be linked to an increase in incidence of CRC. These foods can be a cause for disrup [...]

by Harald P. Hoensch  and Benno Weigmann

Received: 23 March 2022;  Published: 21 July 2022;  doi: 10.21926/rpn.2203017

Flavonoids are phytochemicals (polyphenols) of plant origin. They can trap free oxygen radicals generated by mitochondria and other electronic transport chains, thereby inhibiting inflammatory and carcinogenic changes in vivo and in vitro. Why the body requires these compounds for the well-being of the organism and the maintenance of human health remains unclear. However, a deficit of flavonoids could lead to molecular malfunctions in cells, organelles, and macromolecules. This manuscript describes the occurrence a [...]

by Abbas Ishaq  and Gabriele Saretzki

Received: 13 April 2022;  Published: 05 July 2022;  doi: 10.21926/rpn.2203016

Accumulating evidence demonstrates that senescence and the associated inflammatory phenotype (SASP) also occur in post-mitotic cells such as mature adipocytes. Visceral adipose tissue in humans is susceptible to inflammation due to nutritional imbalance and ageing. However, while adipose tissue has been well researched in the context of obesity, senescence of differentiated adipocytes has not been investigated thoroughly. Our group recently demonstrated that ageing and normal ad libitum (AL) nutrition in mice resul [...]

by Claudia Harper  , Radhika Seimon  , Brendon Yee  , Amanda Salis  and Elizabeth Cayanan

Received: 21 February 2022;  Published: 27 May 2022;  doi: 10.21926/rpn.2202015

We report the case of a 30-year-old male with significant obesity (body mass index 47 kg/m2) with co-existing moderate obstructive sleep apnoea, hypertension, hypercholesteremia and hypogonadotropic hypogonadism, who was treated with a very-low-energy diet (VLED) and lifestyle modification programme for 12 months. The patient lost weight throughout the entire treatment period (average weight loss was 2.1 kg/week, for a total of 42.7 kg), and showed marked improvement in co-morbidities and no adverse effects. This c [...]

by Anikka M. Swaby  and Luis B. Agellon

Received: 20 December 2021;  Published: 26 May 2022;  doi: 10.21926/rpn.2202014

Microbes have been part of the diet throughout human history. In the evolution of food preservation practices, some techniques inadvertently leveraged microbial activity not only to extend the storage life but also to enhance the properties and nutritive value of foods. In the last century, a variety of bacterial species (referred to as probiotics) were found to confer health benefits to the host. The advent of high-throughput sequencing methods facilitated improved surveillance of conventional probiotics within gu [...]

by Angharad Vernon-Roberts  and Andrew S Day

Received: 23 January 2022;  Published: 19 April 2022;  doi: 10.21926/rpn.2202013

Children with inflammatory bowel disease (IBD) have a high prevalence of vitamin D insufficiency secondary to factors such as malabsorption and decreased intake. In recent years the benefits of optimal vitamin D status have been highlighted for their potential to improve the disease course and long-term outcomes in this population. Clinical benefits have been seen to bone health, the immune system, and gut health, with further improvements to disease and treatment outcomes. Recommendations for vitamin D treatment p [...]

by Mitsuro Chiba  , Satoko Tsuda  and Haruhiko Tozawa

Received: 23 December 2021;  Published: 02 April 2022;  doi: 10.21926/rpn.2202012

A modern lifestyle, including dietary westernization, has increased the prevalence of constipation. The authors developed a plant-based diet for inflammatory bowel disease. This study investigated whether a diet containing a high amount of dietary fiber is also effective for constipation. Consecutive patients with constipation were recruited in this study from April 2003 to March 2004. Their constipation was unresponsive to a conventional laxative. The patients were provided a plant-based diet during hospitalizatio [...]

by Sheila Lucía Rodríguez García  and Vijaya Raghavan

Received: 17 February 2022;  Published: 01 April 2022;  doi: 10.21926/rpn.2202011

Microwave-assisted extraction (MAE) to obtain phenolics from vegetable wastes has been of recent interest. Broccoli is one of the most globally produced vegetables, and around 43% of the harvest is considered waste. Thus, given the significant quantity of broccoli waste generated, the objective of this work was to optimize the MAE, to maximize the total phenolic content (TPC) from broccoli by-products (leaves and stems) and broccoli florets. The Response Surface Analysis was used in the optimization model to evalua [...]

by Tina Rawal  , Jean W.M. Muris  , Vijay Kumar Mishra  , Monika Arora  , Nikhil Tandon  and Onno C.P. van Schayck

Received: 10 January 2022;  Published: 30 March 2022;  doi: 10.21926/rpn.2201010

COVID-19 greatly affected the lives of adolescents through restrictions such as less playtime, more screen time, and limited interaction with peers. In this study, we assessed the impact of the COVID-19 pandemic on the dietary and physical activity-related behavior of school students aged 10–16 years. This cross-sectional study was conducted with adolescents recruited from seven randomly selected private schools in Delhi, India, during 2021. A self-administered web-based survey was conducted to evaluate the behavio [...]

by Laura S. Kabiri  , Amanda M. Perkins-Ball  , Cassandra S. Diep  , Uma Kelavkar  and Augusto X. Rodriguez

Received: 17 December 2021;  Published: 15 March 2022;  doi: 10.21926/rpn.2201009

Most children do not meet physical activity guidelines, and school-based programs often fail to increase physical activity levels. However, there has been no intervention pairing college mentors with elementary students to date. The purpose of this paper is to report the feasibility and acceptability, both quantitative and qualitative, of an undergraduate-mentored running program designed to increase physical activity in elementary students. A convergent parallel mixed methods design was used to evaluate the feasib [...]

by Meir Djaldetti

Received: 10 January 2022;  Published: 14 March 2022;  doi: 10.21926/rpn.2201008

Broccoli has long been reported to exert a positive impact on human health. It contains high levels of isocyanates, the most important of which is sulforaphane (SFN). Numerous studies have demonstrated that SFN can be used as an effective supplement for treating a variety of diseases. In addition, it is known to possess anti-cancer properties such as chemopreventive properties against gastrointestinal, breast, lung, bladder, prostate, and other cancers. The reported data indicates that broccoli could be a potent in [...]

by Haruka Sawamura  , Kurumi Taniguchi  , Yuka Ikeda  , Ai Tsuji  , Yasuko Kitagishi  and Satoru Matsuda

Received: 16 November 2021;  Published: 08 March 2022;  doi: 10.21926/rpn.2201007

Immune checkpoints have been aggressively investigated for anti-cancer immunotherapy. The power of microbiota on the outcome of this immunotherapy has attracted much attention. For example, intestinal microorganisms play a key role in the effectiveness of programmed cell death 1 (PD1) and cytotoxic T lymphocyte-associated antigen 4 (CTLA4) blockade. Additionally, short-chain fatty acids produced in the gut may modulate anti-CTLA4 and anti-PD1 stimulated immune responses and their anti-tumor efficacy. Enhancing the [...]

by Suman Mishra  , Kerry Bentley-Hewitt  , Alex Lubransky  , Bernard Venn  , Duncan Hedderley  , Hannah Dinnan  , Sheridan Martell  , Jillian Haszard  and John Monro

Received: 22 December 2021;  Published: 25 February 2022;  doi: 10.21926/rpn.2201006

People with pre-diabetes may be reluctant to add fruit to their diets due to concerns around sugars. Our objective was to measure outcomes associated with potential adverse effects of ingesting fruit sugars while assessing metabolic benefits from eating nutrient-rich kiwifruit. Thirty-four people with pre-diabetes were randomized to receive two kiwifruit or 250 mL bottled water per day for 12-weeks; two people withdrew. The primary outcomes were between-group differences for glycated haemoglobin (HbA1c) and plasma [...]

by Kathy Carter  , John Campbell  , Peyton Shoemaker  , Elisabeth Dichiara  , Neel Patel  and John Caruso

Received: 09 December 2021;  Published: 23 February 2022;  doi: 10.21926/rpn.2201005

Space flight imposes a myriad of adverse effects upon the human body. Improved in-flight nutritional strategies help mitigate those adverse effects. This review examines how space flight changes human physiology, and how improved in-flight nutritional strategies may address the unique dietary needs created by microgravity exposure. Dietary approaches and recommendations to address those needs are discussed. This review also describes food sustainability methods for long-term manned space flight, how precision nutri [...]

by Clemens Drenowatz  , Gerson Ferrari  , Gerhard Ruedl  , Armando Cocca  and Klaus Greier

Received: 15 November 2021;  Published: 18 February 2022;  doi: 10.21926/rpn.2201004

Poor lifestyle choices in adolescents, including low physical activity (PA), excess screen time, and unhealthy dietary habits, are major threats to their health in the future. Unhealthy behaviors such as insufficient PA, high TV time, and poor dietary choices also tend to cluster, but information on the combined association of screen time, sports participation, and dietary habits is limited in Austrian youth. To examine the association among these behaviors, 165 adolescents (74 girls and 91 boys) between 11 and 14 [...]

by Dana Shamshtein  and Timur Liwinski

Received: 06 December 2021;  Published: 17 February 2022;  doi: 10.21926/rpn.2201003

Major depressive disorder (MDD) is a debilitating illness that places a great burden on global health. A ketogenic diet, which has traditionally been used for treating refractory epileptic disorders, is being increasingly explored for its potential of alleviating other neuropsychiatric conditions. Providing an up-to-date summary on the ketogenic diet’s potential to alleviate MDD, its neurobiological basis, and preliminary clinical evidence. A structured literature survey was performed, and a narrative review was wr [...]

by Phil Ayers  , Megan Harlow  and LeAnn Scott

Received: 30 December 2021;  Published: 15 February 2022;  doi: 10.21926/rpn.2201002

Parenteral nutrition (PN) is a complex medication administered to adult, pediatric, and neonatal patients. PN is recognized as a high-alert medication by the Institute for Safe Medication Practices (ISMP). The American Society for Parenteral and Enteral Nutrition (ASPEN) has published several key recommendations regarding safe use of PN. This manuscript will review several of the important PN papers published in 2020-2021 by ASPEN.

by Alicia Stapp  , Madalyn Falkenheiner  and Kenya Wolff

Received: 15 November 2021;  Published: 13 January 2022;  doi: 10.21926/rpn.2201001

It is recommended that children ages 3-5 receive 180 minutes of physical activity a day, with at least 60 minutes of moderate-to-vigorous physical activity. Despite these recommendations, a majority of preschoolers are not provided opportunities in the early childhood education setting to meet these daily recommendations through either structured or unstructured physical activity. Accordingly, the number of young children identified as overweight or obese over the past couple of decades has increased. Critical to a [...]

by Madalina Neacsu  , Susan E. Anderson  , Pola Verschoor  , Nicholas J. Vaughan  , Graham W. Horgan  , Toine Hulshof  , Sylvia H. Duncan  , Susan Duthie  and Wendy R. Russell

Received: 08 October 2021;  Published: 17 December 2021;  doi: 10.21926/rpn.2104002

Wheat bran cereals are an important source of dietary fibre. The aim of the study was to investigate if a high intake (120 g) of fibre rich breakfast cereal (which delivers the UK Government guidelines for fibre intake in one serving but is three-fold higher than the manufacturers recommended serving) has additional potential health benefits compared to the recommended serving (40 g, containing 11 g of dietary fibre). To assess this, the study determined the short chain fatty acid (SCFA) profiles in human faecal, u [...]

by Alex T. Von Schulze  , Marie van der Merwe  , Chad D. Touchberry  and Richard J. Bloomer

Received: 03 August 2021;  Published: 15 October 2021;  doi: 10.21926/rpn.2104001

Poor dietary habits can lead to obesity and insulin resistance—both of which can impair basal heat shock protein (HSP) expression and the HSP stress response in skeletal muscle. It remains unclear if impairments in HSP expression occur during the early stages of diet-induced obesity and metabolic dysfunction. We determined if basal HSP expression (HSP70, HSP60, HSP25) was impaired in sedentary or exercised rats following the onset of diet-induced obesity. Male Long-Evans rats (N=6-7/group) were assigned to a [...]