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Consuming green vegetables, supplements suppresses inflammatory bowel disease
Sichuan University in China and from Cedars Sinai Medical Center, August 17, 2022
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. 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.
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Coriander is a potent weapon against antibiotic resistant bacteria
University of Beira Interior (Portugal) August 10, 2022
The problem of antibiotic resistant bacteria has been deemed a public health crisis, with the Centers for Disease Control and Prevention (CDC) reporting that invasive MRSA – or methicillin-resistant S. aureus – infections affect 80,000 people globally a year, and claim over 11,000 lives. But, what the CDC will never tell you is how coriander can potentially save lives. Researchers in Portugal now say that that the oil from coriander – a common kitchen spice – is quite toxic to a wide range of harmful bacteria, leading to hopes that it may be enlisted in the fight against MRSA and other pathogens. The scientific research about coriander is promising
Researchers at University of Beira Interior used flow cytometry to study the effects of coriander oil on 12 different disease-causing types of bacteria, including E. coli, Salmonella, B. cereus and MRSA. In the study, published in Journal of Medical Microbiology, the oil significantly inhibited bacterial growth – especially that of MRSA and E. coli.
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Tumour blood supply stopped in its tracks by modified natural compound
University of New South Wales (Australia), August 10, 2022
Researchers have discovered how the modified natural compound dextran-catechin disrupts formation of blood vessels that fuel growth in the childhood cancer neuroblastoma. Researchers have discovered how a modified natural compound disrupts angiogenesis, the formation of blood vessel networks, in neuroblastoma tumours, stopping them laying down the vital supply lines that fuel cancer growth and spread. Dextran catechin is a sugar based conjugated form of catechin commonly found in green tea, red wine, dark chocolate and apple peels. Lead author Dr Orazio Vittorio of Children’s Cancer Institute found that the natural polyphenol catechin slows tumour growth in the laboratory but breaks down too quickly in the body to be effective.
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Researchers discover how DDT exposure contributes to Alzheimer’s disease risk
Florida International University and Rutgers University, August 17, 2022
A new study led by researchers from Florida International University and Rutgers reveals a mechanism linking the pesticide DDT to Alzheimer’s disease. Published in Environmental Health Perspectives, the study shows how the persistent environmental pollutant DDT causes increased amounts of toxic amyloid beta, which form the characteristic amyloid plaques found in the brains of those with Alzheimer’s disease. According to Jason Richardson, professor at FIU’s Robert Stempel College of Public Health & Social Work and corresponding author, the study further demonstrates that DDT is an environmental risk factor for Alzheimer’s disease.”The vast majority of research on the disease has been on genetics—and genetics are very important—but the genes that actually cause the disease are very rare,” Richardson says. “Environmental risk factors like exposure to DDT are modifiable. So, if we understand how DDT affects the brain, then perhaps we could target those mechanisms and help the people who have been highly exposed.” The study focused on sodium channels, which the nervous system uses to communicate between brain cells (neurons), as the potential mechanism. DDT causes these channels to remain open, leading to increased firing of neurons and increased release of amyloid-beta peptides. In the study, researchers demonstrate that if neurons are treated with tetrodotoxin, a compound that blocks sodium channels in the brain, the increased production of the amyloid precursor protein and toxic amyloid-beta species is prevented. “This finding could potentially provide a roadmap to future therapies for people highly exposed to DDT,” Richardson says.
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Study shows how food preservatives may disrupt human hormones and promote obesity
Cedars-Sinai Medicine Institute, August 9, 2022
Can chemicals that are added to breakfast cereals and other everyday products make you obese? Growing evidence from animal experiments suggests the answer may be “yes.” But confirming these findings in humans has faced formidable obstacles – until now. A new study published in Nature Communications details how Cedars-Sinai investigators developed a novel platform and protocol for testing the effects of chemicals known as endocrine disruptors on humans. The three chemicals tested in this study are abundant in modern life. Butylhydroxytoluene (BHT) is an antioxidant commonly added to breakfast cereals and other foods to protect nutrients and keep fats from turning rancid; perfluorooctanoic acid (PFOA) is a polymer found in some cookware, carpeting and other products; and tributyltin (TBT) is a compound in paints that can make its way into water and accumulate in seafood. The investigators used hormone-producing tissues grown from human stem cells to demonstrate how chronic exposure to these chemicals can interfere with signals sent from the digestive system to the brain that let people know when they are “full” during meals. When this signaling system breaks down, people often may continue eating, causing them to gain weight.
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Standing desks can improve well-being, reduce stress among office workers
University of Leicester (UK), August 17 2022
Standing desks can improve workers’ performance as well as cut their time sitting by an hour each day, according to new research. Study authors add that getting up from an office chair also boosts well-being and energy levels, while reducing stress. “High levels of sitting time are associated with several health related outcomes and premature mortality, with high levels of workplace sitting associated with low vigor and job performance and high levels of presenteeism.” Presenteeism is the practice of being present at one’s place of work for more hours than is required, especially as a manifestation of insecurity about one’s job. Sedentary lifestyles increase the risk of chronic conditions including cardiovascular disease, type 2 diabetes, depression, anxiety, and cancer.
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