Insights & Discussion
Fresh and dried ginger displays key botanical, phytochemical and ethnopharmacological differences, which are fundamental for their specific clinical uses in treating gastrointestinal issues.
The methodology used in the research involved a retrospective comparison between Sheng Jiang (SJ, meaning fresh ginger) and Gan Jiang (GJ, meaning dried ginger), two traditional Chinese herbs. The comparison was undertaken specifically considering aspects of botany, phytochemistry, and ethnopharmacology. The research also delved into exploring the traditionally attributed use of ginger, in both its fresh and dried forms, for the treatment of gastrointestinal disorders, and its relationship with human gut microbiota - an aspect that hasn't been considered extensively previously.
The results displayed notable differences between fresh and dried ginger in terms of botany, phytochemical, and ethnopharmacological properties. Fresh and dried ginger are cultivated differently and display distinct physical appearances. This research proposed that these differences lay the foundation for how these two forms of ginger are applied clinically. Furthermore, discussing the pharmacology of gut microbiota-related gastrointestinal benefits, it is suggested that fresh and dried ginger could present innovative and potent avenues for preventing and treating gastrointestinal disorders.
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Two French natural mineral waters (NMW1 and NMW2) show anti-inflammatory effects and can reduce intestinal inflammation in mice with induced colitis.
2021 International Journal of Molecular Sciences Beneficial Effects of Natural Mineral Waters on Intestinal Inflammation and the Mucosa-Associated Microbiota Barnich N, Rodrigues M, Sauvanet P, Chevarin C, Denis S, Le Goff O, et al.
Experimental Study Colitis Gut Microbiota Intestinal Inflammation
The study investigated the anti-inflammatory effects of two French natural mineral waters (NMWs) - NMW1 (rich in calcium, magnesium, sodium, carbon, and iron) and NMW2 (mainly bicarbonate) - on intestinal inflammation. Intestinal epithelial cells were stimulated with heat-inactivated Escherichia coli or hydrogen peroxide and then treated with NMWs. Additionally, moderate colitis was induced in Balbc/J mice using 1% dextran sulfate sodium. These mice were then given either NMW1, NMW2, or control water. The study assessed general symptoms, histological features of colitis, fecal lipocalin-2 levels, pro-inflammatory KC cytokine levels, and the global mucosa-associated microbiota.
Both NMW1 and NMW2 showed anti-inflammatory effects in treated intestinal cells. In the colitis-induced mice, NMW1 notably reduced inflammation, evidenced by lower disease activity scores, reduced fecal lipocalin-2, decreased release of pro-inflammatory KC cytokines, and smaller intestinal epithelial lesions. NMW1 also helped in maintaining the normal state of mucosa-associated microbiota. These findings suggest the potential of these NMWs in managing inflammatory bowel disease through modulating gut microbiota.
Ginger has been effective in a majority of studies, including those that examined the alleviation of nausea and vomiting of pregnancy, digestive function, improvement in the expression level of markers for colorectal cancer risk, and anti-inflammatory functions.
2020 Nutrients Ginger on Human Health: A Comprehensive Systematic Review of 109 Randomized Controlled Trials Anh NH, Kim SJ, Long NP, Min JE, Yoon YC, Lee EG, et al.
Systematic Review Anti-Inflammatory Bowel Cancer Ginger
Ginger is a natural spice that is used in diverse regions to add a pungent flavor to food. Furthermore, ginger has been used as an herbal medicine for common health problems. This systematic review is the first study that has exclusively collected RCTs regarding the efficiency of ginger in several human health conditions. The clinical effects of ginger have been introduced as six subsections: nausea and vomiting, gastrointestinal function, pain, inflammation, metabolic syndromes, and other symptoms. Reportedly, ginger has been effective in a majority of studies, including those that examined the alleviation of nausea and vomiting of pregnancy, digestive function, improvement in the expression level of markers for colorectal cancer risk, and anti-inflammatory functions. Several other functions have also been regarded as beneficial in trials, with some confronting results. However, a few drawbacks regarding the quality of the trials, inconsistent evaluation systems or parameters, and the generally small size of the studies need to be noted. Therefore, systematically designed research with detailed descriptions of methodology and a sufficient pool of participants is necessary for future clinical trials to address the functional characteristics of ginger.
Oats improve gastrointestinal health, reduce cholesterol, and regulate satiety, with effects on the gut microbiome constituting an appealing new research area.
2019 Nutrition Reviews Effects of oats on gastrointestinal health as assessed by in vitro, animal, and human studies Korczak R, Kocher M, Swanson KS
Review Article Cholesterol Gut Microbiota Satiety
The researchers undertook a comprehensive literature review using predefined search criteria and keywords related to gastrointestinal health outcomes in the PubMed database. They sought to explore the impact of oats on gastrointestinal health in humans, with the intent to identify both human and animal studies, as well as in vitro studies, that met their specific inclusion criteria. They extracted data from eight human studies, nineteen animal trials, and five in vitro studies for this synthesis.
The results underscore that oats, due to their unique composition of bioactive compounds, lipids, and β-glucan, have beneficial effects on gastrointestinal health. The human studies showed consistent beneficial outcomes, with complementary evidence from animal and in vitro studies. The degree of effect, however, appeared to vary depending on the type of oats and dosage used. For instance, oat types providing between 2.5 to 2.9 grams of β-glucan a day were found to decrease fecal pH and alter fecal bacteria, while 40 to 100 grams per day of oat bran was shown to boost bacterial mass and short-chain fatty acids in human feces. The researchers note that different study designs, methodologies, and types of oats used make comparing results challenging.
Kiwifruits can relieve constipation and irritable bowel syndrome, potentially through protease-activated signaling, modulation of microflora, changes in colonic methane, bile flux, or mediation of inflammatory processes.
2017 Critical Reviews in Food Science and Nutrition Putative mechanisms of kiwifruit on maintenance of normal gastrointestinal function Bayer SB, Gearry RB, Drummond LN
Review Article Gut Microbiota Irritable Bowel Syndrome Kiwifruit
The review outlines the physiological processes underlying constipation and irritable bowel syndrome, and discusses the nutritional composition of kiwifruits. It delves into recent advances made in the study of kiwifruits and their impact on abdominal comfort, with the focus being given to the effect of kiwifruit fibers on gastrointestinal health. The study also identified and examined certain gaps in the existing research, using indications from studies on other foods known to affect the gastrointestinal tract to derive possible mechanisms of kiwifruits' beneficial actions.
In discussing the results, the review observed that while the effect of kiwifruit fibers on gastrointestinal health is well established, the supposed increase in gastrointestinal motility caused by kiwifruits is yet to be fully characterized. Numerous potential mechanisms were invoked that could be contributing to the physiological effects observed - these included the induction of motility through protease-activated signaling, the modulation of microflora in the gut, alterations in colonic methane status or bile flux, and the mediation of inflammation within the gut.