Summary: Consuming green vegetables and adding a daily chlorophyllin supplement helps alleviate symptoms of inflammatory bowel disease, researchers report. Additionally, chlorophyllin supplements help significantly reduce mortality risks associated with IBD.

Source: APS

The dietary supplement chlorophyllin alleviates inflammatory bowel disease (IBD), including Crohn’s disease and ulcerative colitis, according to researchers from the Center for Diabetes and Metabolism Research at Sichuan University in China and from Cedars Sinai Medical Center in Los Angeles.

In addition, chlorophyllin significantly reduces mortality related to IBD, weight loss, diarrhea and hidden blood in the stool, intestinal epithelial damage and infiltration of inflammatory cells.

The findings are published ahead of print in the American Journal of Physiology-Gastrointestinal and Liver Physiology, and the study has been chosen as an APS select article for August.

Chronic gastrointestinal disorders such as IBD affect tens of millions of people living in the U.S. IBD has created a global health burden because of the rising cost of treating the condition.

While the exact cause of IBD isn’t fully understood, some contributing factors include stress and environmental, lifestyle, and dietary choices, such as high consumption of meat or fish.

Chronic inflammation, abnormality in autophagy—the body’s process of cleaning out damaged cells to make room for newer, healthier cells—and lysosomal stress (an abnormality in an organelle leading to inflammation) are also linked to the condition.

Consuming Green Vegetables and Certain Supplements Suppresses Inflammatory Bowel Disease

Researchers believe these findings could be a pathway to a less intrusive treatment for IBD. Image is in the public domain

Current therapeutics for IBD include medications that suppress the immune system (immunosuppressants) and surgery. However, long-term use of immunosuppressive treatments could result in severe adverse effects, including opportunistic infections and even organ failure.

In this study, researchers found taking an oral chlorophyllin supplement—a compound derived from the green pigment found in plants—reduced colitis and abnormalities in the intestinal epithelia of mice.

Also, consumption of green vegetables and chlorophyllin may be helpful for IBD recovery, in part through alleviation of inflammation and autolysosomal flux (a process that uses lysosome to degrade and remove toxic molecules and organelles).

Green pigment found in these foods and supplements can initiate a feeding signaling to modulate autophagy in the cells, which suppresses IBD symptoms.

Researchers believe these findings could be a pathway to a less intrusive treatment for IBD.

“Consuming green-colored vegetables or green pigment supplement such as chlorophyllin might help people with inflammatory bowel disease,” said Xiaofeng Zheng, Ph.D., of Sichuan University and a co-author of the study.

About this diet and inflammation research news

Author: Press OfficeSource: APSContact: Press Office – APS
Image: The image is in the public domain

Original Research: Open access.
“Liver-on-a-chip devices: the pros and cons of complexity” by Philip Dalsbecker et al. American Journal of Physiology-Gastrointestinal and Liver Physiology


Abstract

Liver-on-a-chip devices: the pros and cons of complexity

Physiologically relevant and broadly applicable liver cell culture platforms are of great importance in both drug development and disease modeling.

Organ-on-a-chip systems offer a promising alternative to conventional, static two-dimensional (2-D) cultures, providing much-needed cues such as perfusion, shear stress, and three-dimensional (3-D) cell-cell communication.

However, such devices cover a broad range of complexity both in manufacture and in implementation. In this review, we summarize the key features of the human liver that should be reflected in a physiologically relevant liver-on-a-chip model.

We also discuss different material properties of importance in producing liver-on-a-chip devices and summarize recent and current progress in the field, highlighting different types of devices at different levels of complexity.

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