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Drinking hot tea every day linked to lower glaucoma risk
Brown University and UCLA, December 14, 2022
Drinking a cup of hot tea at least once a day may be linked to a significantly lower risk of developing the serious eye condition, glaucoma, finds a small study published online in the British Journal of Ophthalmology. The researchers looked at data from the National Health and Nutrition Examination Survey (NHANES) in the US. This is a nationally representative annual survey of around 10, 000 people that includes interviews, physical examinations, and blood samples, designed to gauge the health and nutritional status of US adults and children. In this particular year, it also included eye tests for glaucoma. Among the 1678 participants who had full eye test results, including photos, 84 (5%) adults had developed the condition. They were asked how often and how much they had drunk of caffeinated and decaffeinated drinks, including soft drinks and iced tea, over the preceding 12 months, using a validated questionnaire (Food Frequency). Compared with those who didn’t drink hot tea every day, those who did, had a lower glaucoma risk, the data showed. After taking account of potentially influential factors, such as diabetes and smoking, hot tea-drinkers were 74 per cent less likely to have glaucoma. But no such associations were found for coffee—caffeinated or decaffeinated—decaffeinated tea, iced tea or soft drinks. This is an observational study so no firm conclusions can be drawn about cause and effect, and the absolute numbers of those with glaucoma were small. Information on when glaucoma had been diagnosed was also unavailable. But tea contains antioxidants and anti-inflammatory and neuroprotective chemicals, which have been associated with a lowered risk of serious conditions, including heart disease, cancer, and diabetes, say the researchers.
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Effects of Resveratrol on Polycystic Ovary Syndrome: A Double-blind, Randomized, Placebo-controlled Trial.
Poznan University of Medical Sciences (Poland), November 29, 2022
Polycystic ovary syndrome (PCOS) is the most common endocrinopathy affecting women of reproductive age. Hyperandrogenism is the central feature of PCOS. Studies on isolated ovarian theca-interstitial cells suggest that resveratrol, a natural polyphenol, reduces androgen production. This study was designed to evaluate endocrine and metabolic effects of resveratrol on PCOS. This was a randomized (1:1) double-blind, placebo-controlled trial that evaluated the effects of resveratrol over a period of 3 months in an academic hospital. Resveratrol (1,500 mg p.o.) or placebo were administered daily. Primary outcome was the change in the serum total T. Resveratrol treatment led to a significant decrease of total T by 23.1% . In parallel, resveratrol induced a 22.2% decrease of dehydroepiandrosterone sulfate, a decrease of fasting insulin level by 31.8% and an increase of the Insulin Sensitivity Index (Matsuda and DeFronzo) by 66.3%. Levels of gonadotropins, the lipid profile as well as markers of inflammation and endothelial function were not significantly altered. Resveratrol significantly reduced ovarian and adrenal androgens. This effect may be, at least in part, related to an improvement of insulin sensitivity and a decline of insulin level.
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Encouraging risk-taking in children may reduce the prevalence of childhood anxiety
Macquarie University’s Centre for Emotional Health (Netherlands), December 13, 2022
A new international study suggests that parents who employ challenging parent behavioural (CPB) methods – active physical and verbal behaviours that encourage children to push their limits – are likely protecting their children from developing childhood anxiety disorders. Researchers from Macquarie University’s Centre for Emotional Health, along with partners from the University of Amsterdam and the University of Reading, surveyed 312 families with preschool-aged children across the Netherlands and Australia. Results showed that the parents who scored higher in their CPB methods, thereby encouraging their kids to push their limits to a greater extent, had children who were less at risk of exhibiting anxiety disorder symptoms, demonstrating that CPB was related to significantly less anxiety in children. CPB encourages safe risk-taking in children such as giving them a fright, engaging in rough-and-tumble play or letting them lose a game, as well as encouraging them to practice social assertion and confidently enter into unfamiliar situations. This study aimed to build upon existing research that establishes a relationship between parenting behaviours – particularly overinvolvement and overcontrol – and the development and maintenance of childhood anxiety disorders. To determine the effects of CPB on preschool-aged children, parents’ CPB was assessed via a questionnaire assessing how much the parents encourage the exhibition of risky behaviour in their children, as well as the extent to which they encourage their children to venture beyond their comfort zones. “While Dutch and Australian mothers showed no differences in CPB towards their sons or daughters, both Dutch and Australian fathers of sons demonstrated more competition towards their sons than fathers of daughters. Dutch fathers in particular reported more rough-and-tumble play than the other groups of parents,” says Rebecca Lazarus from Macquarie University, another co-author of the study. The results are promising in raising the clinical relevance of CPB methods, which could potentially be used to aid parents in helping their children’s wellbeing.
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Music therapy reduces pain and anxiety for patients with cancer and sickle cell disease
University Hospitals Cleveland Medical Center, December 19, 2022
A new study found patients with cancer and patients with sickle cell disease (SCD) treated at an academic cancer center reported clinically significant reductions in pain and anxiety in response to music therapy. Furthermore, patients with SCD who received music therapy reported significantly higher pain and anxiety at baseline than patients with hematologic and/or oncologic conditions excluding SCD. The findings from this study were recently published in the journal, Integrative Cancer Therapies, a leading journal focusing on understanding the science of integrative cancer treatments. In this retrospective study conducted between January 2017 and July 202, music therapists at UH Connor Whole Health provided 4,002 music therapy sessions to 1,152 patients across 2,400 encounters at UH Seidman Cancer Center, making this the largest investigation of the real-world effectiveness of music therapy within hematology and oncology to date. This study builds upon a history of seminal music therapy studies funded by the Kulas Foundation, the country’s leading foundation for funding scientific research in music therapy, that have investigated the efficacy of music therapy in palliative care, surgery, and sickle cell disease at UH. Music therapists provided interventions including live music listening, active music making, and songwriting to address patients’ needs including coping, pain management, anxiety reduction, and self-expression. As part of clinical care, the music therapists assessed patients’ self-reported pain, anxiety, and fatigue on a 0 to 10 scale at the beginning and end of each session and documented their sessions in the electronic health record.
“This research highlights the increased symptom burden that adults with SCD face in the hospital and the significant impact that a single session of music therapy can have on their pain and anxiety.” These studies support the benefits of music therapy for managing acute pain, improving self-efficacy and quality of life, and improving sickle cell disease knowledge in adolescents and young adults transitioning from pediatric to adult care. Music therapy sessions differed between the two groups, with interventions including active music making, songwriting, and song recording being much more prevalent in the SCD group than the HemOnc group. Furthermore, in an analysis of patients’ comments about music therapy, patients expressed themes including enjoyment, gratitude, and improvements in mood, pain, and anxiety. “Integrative Oncology utilizes complementary therapies, such as music therapy discussed in this study, to improve well-being for those affected by cancer. Using an evidence-based approach and building off research allows us to confidently build a program around supporting patients with integrative modalities as part of a strategy to manage symptoms that they may encounter through therapies or from cancer,” explained Santosh Rao, MD, a board-certified medical oncologist and integrative medicine provider and Medical Director of Integrative Oncology at UH Connor Whole Health.
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Study links health risks to electromagnetic field exposure
Kaiser Permanente Division of Research, December 16, 2022
A study of real-world exposure to non-ionizing radiation from magnetic fields in pregnant women found a significantly higher rate of miscarriage, providing new evidence regarding their potential health risks. The Kaiser Permanente study was published in the journal Scientific Reports. Non-ionizing radiation from magnetic fields is produced when electric devices are in use and electricity is flowing. It can be generated by a number of environmental sources, including electric appliances, power lines and transformers, wireless devices and wireless networks. Humans are exposed to magnetic fields via close proximity to these sources while they are in use. While the health hazards from ionizing radiation are well-established and include radiation sickness, cancer and genetic damage, the evidence of health risks to humans from non-ionizing radiation remains limited, said De-Kun Li, MD, PhD, principal investigator of the study and a reproductive and perinatal epidemiologist at the Kaiser Permanente Division of Research in Oakland, California. In a new study funded by the National Institute of Environmental Health Sciences, researchers asked women over age 18 with confirmed pregnancies to wear a small (a bit larger than a deck of cards) magnetic-field monitoring device for 24 hours. Participants also kept a diary of their activities on that day, and were interviewed in person to better control for possible confounding factors, as well as how typical their activities were on the monitoring day. Researchers controlled for multiple variables known to influence the risk of miscarriage, including nausea/vomiting, past history of miscarriage, alcohol use, caffeine intake, and maternal fever and infections. Objective magnetic field measurements and pregnancy outcomes were obtained for 913 pregnant women, all members of Kaiser Permanente Northern California. Miscarriage occurred in 10.4 percent of the women with the lowest measured exposure level (1st quartile) of magnetic field non-ionizing radiation on a typical day, and in 24.2 percent of the women with the higher measured exposure level (2nd, 3rd and 4th quartiles), a nearly three times higher relative risk. The rate of miscarriage reported in the general population is between 10 and 15 percent, Dr. Li said. “This study provides evidence from a human population that magnetic field non-ionizing radiation could have adverse biological impacts on human health,” he said.
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Common food dye can trigger inflammatory bowel diseases, say researchers
McMaster University (Ontario), December 20 2022
Long-term consumption of Allura Red food dye can be a potential trigger of inflammatory bowel diseases (IBDs), Crohn’s disease and ulcerative colitis, says McMaster University’s Waliul Khan. Researchers using experimental animal models of IBD found that continual exposure to Allura Red AC harms gut health and promotes inflammation. The dye directly disrupts gut barrier function and increases the production of serotonin, a hormone/neurotransmitter found in the gut, which subsequently alters gut microbiota composition leading to increased susceptibility to colitis. Khan said Allura Red (also called FD&C Red 40 and Food Red 17), is a common ingredient in candies, soft drinks, dairy products and some cereals. The dye is used to add color and texture to foodstuffs, often to attract children. The use of synthetic food dyes such as Allura Red has increased significantly over the last several decades, but there has been little earlier study of these dyes’ effects on gut health. Khan and his team published their findings in Nature Communications. Yun Han (Eric) Kwon, who recently completed Ph.D. in Khan’s laboratory, is first author. “This study demonstrates significant harmful effects of Allura Red on gut health and identifies gut serotonin as a critical factor mediating these effects. These findings have important implication in the prevention and management of gut inflammation,” said Khan, the study’s senior author, a professor of the Department of Pathology and Molecular Medicine and a principal investigator of Farncombe Family Digestive Health Research Institute.”What we have found is striking and alarming, as this common synthetic food dye is a possible dietary trigger for IBDs. This research is a significant advance in alerting the public on the potential harms of food dyes that we consume daily,” he said. “The literature suggests that the consumption of Allura Red also affects certain allergies, immune disorders and behavioral problems in children, such as attention deficit hyperactivity disorder.”