Articles tagged with Placebo Effect
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A new study by University of Toronto researchers found that growing awareness of ADHD may lead some young adults to mistakenly believe they have the disorder. However, a short educational session on the nocebo effect reduced the likelihood of mistaken diagnosis.
A large international clinical trial found that elinzanetant significantly reduces hot flashes and night sweats in postmenopausal women by over 73%. The drug also shows secondary benefits such as improved quality of life and reduced sleep disturbances, with no harmful effects on the liver or bone density.
Researchers have identified two key brainstem regions involved in pain relief, with distinct patterns of activity depending on the location of pain. This discovery may pave the way for safer, more targeted treatments for chronic pain without relying on opioids.
Research found that negative expectations have a stronger and longer-lasting impact on pain perception than positive ones. The study showed that nocebo effects, where participants expect a negative outcome, were more powerful and persistent than placebo effects, with implications for patient-practitioner communication.
The Finerenone Trial found that sudden death was the primary cause of higher cardiovascular mortality in patients with heart failure and mild or preserved ejection fractions. The study suggests that finerenone may not significantly impact cardiovascular mortality, but its effects on overall mortality are unclear.
A study found that semaglutide significantly improved maximal walking distance in people with symptomatic peripheral artery disease (PAD) and Type 2 diabetes. Patients taking semaglutide also experienced improvements in symptoms and quality of life compared to those on a placebo.
A study found that open-label placebos alleviated symptoms of premenstrual syndrome (PMS) in women, with effects greatest when provided with additional information. The placebo effect played a significant role, accompanied by improved self-efficacy and reduced symptom intensity.
A new study led by Weill Cornell Medicine found that tirzepatide reduced the risk of diabetes in obese and prediabetic patients by more than 90% after 176 weeks. The treatment also showed significant weight loss and improved blood sugar control.
The international SUMMIT trial found tirzepatide lowered the risk of worsening heart failure events and cardiovascular death in obese adults with preserved ejection fraction. Participants experienced improved health status, physical function, and exercise tolerance compared to placebo.
Researchers found that positive expectations lead to increased activity in pleasure-related brain regions, while negative expectations prime pain processing. The study suggests a dissociable impact of hedonic information, with positive expectations facilitating reward processing and negative expectations heightening anxiety.
A new randomized study of 168 people investigated the neurochemical underpinnings of the placebo-effect, finding that dopamine does not play a direct causal role in establishing positive treatment expectations and placebo analgesia. Instead, dopamine may interact with reward processing related to active agency and motivation.
A new study reveals that mindfulness meditation reduces pain intensity and unpleasantness ratings by directly modifying how we experience pain. Unlike the placebo cream, which only affects brain activity patterns associated with the placebo effect, mindfulness meditation employs a separate neural pathway to alleviate pain.
Researchers at UNC School of Medicine discover a key brain pathway linking the cingulate cortex to cerebellum that's crucial for placebo analgesia. The study reveals neurons and synapses along this pathway are highly activated when mice expect pain relief, paving the way for potential new treatments
A study published in Radiology found that low-level light therapy increased resting-state functional connectivity in patients with moderate traumatic brain injuries. The treatment showed improved brain connectivity within the first two weeks, but its long-term effects are still unclear.
A new study published in the American Heart Association journal Hypertension found that tirzepatide significantly lowered systolic blood pressure levels in nearly 500 adults with obesity. The results suggest treating obesity with this weight loss medication may be an effective strategy for preventing or treating high blood pressure.
A survey of 2,002 Danish dog owners found that 38% used cannabinoids, primarily CBD, to treat their pets' pain, behavioral issues, and allergies. 77% of these owners reported positive effects on their dogs' mental or physical health.
A large randomized study investigated the effect of preoperative, low-dose oral administration of midazolam in older patients on patient satisfaction and safety. No significant difference was found between midazolam and placebo groups regarding patient safety.
Researchers found that patients' beliefs about receiving real or placebo treatments explained treatment outcomes in four out of five studies. The study suggests that subjective beliefs can have a significant impact on treatment efficacy, highlighting the importance of considering individual beliefs in future research.
The ORBITA-2 trial found that stenting improves symptoms compared to a placebo procedure, providing evidence-based treatment for stable chest pain. The study suggests updating guidelines for stable coronary artery disease and offers patients and medical teams two treatment strategies with similar benefits.
Researchers found that people with overweight or obesity who took semaglutide for over 3 years had a 20% lower risk of heart attack, stroke, or death from cardiovascular disease. The study showed significant weight loss and improved cardiovascular outcomes in adults without diabetes.
A study at Stanford Medicine found that patients who believed they had received ketamine experienced significant improvements in depression symptoms, even if they hadn't. The researchers suggest that positive expectations and hope may play a key role in ketamine's effectiveness.
A new trial suggests that ultrasound-guided lavage and steroid injections for calcific tendinopathy provide no meaningful benefits over placebo. The study's findings question the use of these treatments and should lead to a critical reconsideration of existing treatment guidelines.
Baylor University researchers found that the benefits of paroxetine in treating hot flashes are comparable to those of a placebo response. The study, which analyzed six clinical trials, suggests that most of the benefit of paroxetine is due to non-specific placebo effects rather than drug-specific effects.
The use of psychedelics in mental health treatment is gaining traction, but concerns about patient safety and regulation need to be addressed. Psychedelic-assisted therapy shows promise in treating conditions like depression and PTSD, but more research is needed on dosages, settings, and guidelines.
Researchers found that individuals with high expectations of AI and brain-computer interfaces take greater risks despite no actual improvement. Expectations-based decision-making can lead to negative consequences, emphasizing the need for accurate evaluation and validation of new technologies.
A study found that psychological factors, such as beliefs and attitude towards the COVID-19 vaccine, significantly contribute to the onset and severity of adverse effects. The researchers investigated how fear, trust, and expectations affect side effects and explained 30% of the intensity of symptoms.
A novel clinical trial demonstrated that open-label placebo increased patient retention rates by 78% compared to methadone-only treatment. Participants also reported better sleep quality, with no significant differences found in other outcome measures. The study suggests that deception-free placebo treatment can provide valuable benefits.
Researchers at the University of Basel found that placebos can significantly reduce feelings of guilt in healthy subjects. Participants who received open-label placebos showed a significant decrease in guilt, even when they knew they were receiving a placebo.
A randomized clinical trial of 1,288 adults with mild to moderate COVID-19 found that fluvoxamine treatment did not reduce time to sustained recovery compared to placebo. The study suggests that fluvoxamine at a dose and duration tested may not be beneficial in patients with mild to moderate COVID-19.
Researchers found that 'The Secret', a centuries-old folk medicine remedy, does not prevent bleeding after invasive coronary procedures. However, the study suggests that it may have therapeutic value due to its placebo effect, potentially providing stress relief for its believers.
A recent study found that cannabis studies are often reported in positive terms in the media regardless of their results. The analysis of 20 studies involving 1,500 individuals showed a moderate to large placebo response, where pain was rated as being significantly less intense after treatment with placebo.
A new study from Northwestern University found that vitamin D supplements do not significantly reduce statin-associated muscle symptoms, contradicting previous non-randomized studies. The trial involved 2,083 participants and was the first placebo-controlled, randomized clinical trial to examine this effect.
A large clinical trial found that administering steroids during infant heart surgery did not improve post-operative outcomes compared to placebo. However, secondary analysis revealed a small net benefit for some infants, with lower odds of bleeding requiring another operation.
A clinical trial of over 1,500 outpatients with mild to moderate COVID-19 found that treatment with ivermectin did not significantly improve time to sustained recovery compared to placebo. Secondary outcomes showed no reduction in hospitalization, death, or acute care visits.
A new treatment has shown clinically meaningful effects on pain intensity and disability, with participants reporting improved quality of life and long-term benefits. The sensorimotor retraining approach alters how people think about their body in pain and normalizes communication between the back and brain.
MD Anderson research highlights new treatments for skin cancers, including novel therapies. The institution also showcased improved goals of care programs, which demonstrated significant reductions in ICU mortality and improved patient outcomes during the COVID-19 pandemic.
The study found a twofold regression of coronary atherosclerosis and stabilization of high-risk plaques in patients who received alirocumab, compared to those who received a placebo. Patients treated with alirocumab also needed significantly fewer repeat stenting procedures.
A new study finds that the placebo effect activates the same brain regions targeted by brain-stimulation therapy for depression, complicating clinical trial interpretation. The study's findings may offer insights on harnessing the therapeutic potential of the placebo effect.
Researchers at Boston Children's Hospital have found that open-label placebo treatment significantly reduces pain scores in children with functional abdominal pain or irritable bowel syndrome. The study also showed no side effects, making it a promising non-pharmacologic therapy for these difficult-to-treat conditions.
A new meta-analysis of COVID-19 vaccine trials found that the placebo effect accounts for more than two-thirds of adverse events, with headache and fatigue being the most common. The study suggests that informing patients about potential side effects could help reduce vaccination hesitancy.
A study published in Translational Psychiatry found that patients with high expectations of SSRI treatment showed a four times higher improvement rate compared to those with low expectations. The effect was attributed to the influence of dopamine on the brain's reward pathways.
Researchers found a clear link between people's expectations and actual vaccine side effects, suggesting that psychological factors can predict which individuals will experience more symptoms. The study aims to help overcome lingering vaccine hesitancy by reframing the way we think about side effects.
A new study found that the brainstem plays a key role in modulating pain signals in the spinal cord based on expectations, with increased activity linked to the placebo effect and decreased activity to the nocebo effect.
A new trial has found that vaginal laser therapy treatments claim to reduce negative vaginal symptoms of menopause – experienced by about half of all women – by up to 100 per cent. However, the study shows they might not work at all, with no difference found between the laser treatment and a placebo.
A study found that pink drinks can increase exercise performance by 4.4%, making participants feel more efficient while running. This is attributed to a potential placebo effect, where the drink's color influences perceived sweetness and pleasure.
Repeated transcranial direct current stimulation of the right dorsal lateral prefrontal cortex boosts the pain-relieving placebo effect while blunting the pain-enhancing nocebo effect. This suggests a potential new approach to modulating placebo and nocebo effects and improving pain management outcomes.
A new study found that participants with moderate to severe IBS who received an open-label placebo reported clinically meaningful improvements in symptoms, similar to those receiving a double-blind placebo. The study suggests the placebo effect can be harnessed without deception.
A meta-analysis of 20 neuroimaging studies finds that placebo treatments reduce pain-related activity in multiple brain areas, including the thalamus and somatosensory cortex. The study, led by Tor Wager, demonstrates that the brain constructs pain experiences through a mix of processing stations and motivational circuits.
A randomized clinical trial investigated treating patients with relapsing multiple sclerosis using a therapeutic hookworm infection, comparing it to placebo. The study aimed to determine if gut worms could induce immune responses that protect against multiple sclerosis.
A recent study from McGill University suggests that some people may experience psychedelic-like effects from placebos alone, with 61% of participants reporting an effect. The researchers found that context plays a significant role in these experiences, and clinicians may be able to leverage contextual factors to improve the safety of p...
Researchers found binaural beats do not alter mood, contrary to popular claims, and instead synchronize brain waves like other sounds. Brain activity synchronized with both types of beats, but monoaural beats had a stronger effect.
A new expert review confirms that diet significantly influences mental health and wellbeing. While some areas like ketogenic diets for epilepsy and Mediterranean diets show mental health benefits, many foods or supplements have inconclusive evidence.
A new study found that most Australian GPs have used a placebo in practice at least once, with active placebos being more commonly used than inert ones. The study suggests that GPs use placebos because they believe it can provide genuine benefit and shape patients' expectations.
A Monash University study found that exposure to coffee-related cues can trigger cognitive benefits, such as increased alertness and energy levels, in participants from Western cultures. The research used mental construal theory and demonstrated the power of psychological associations in shaping our thinking and behavior.
A study published in Scientific Reports found that psychological placebos can have a positive impact on participants' well-being when attributed to them. The results suggest that the narrative associated with the placebo, as well as the relationship between the researcher and participant, play a crucial role in this effect.
Research at Stevens Institute of Technology found that smelling coffee-like scent improves analytical task performance, particularly due to the expectation that it will boost alertness. The study suggests that subtle scents can be used to shape employee experience and improve performance in various tasks.
Acupuncture may be a safe alternative to drugs for chronic pain, with moderate benefit shown in a review of 20,827 patients. However, critics argue that the evidence is insufficient and that it can be linked to better quality of life compared to usual care. Doctors should consider a more flexible approach to guideline development.
A recent study published in The Lancet found that common shoulder surgery does not provide significant relief from pain for people with shoulder impingement. Despite being slightly more effective than no treatment, the difference was small and unlikely to result in noticeable symptoms.
A new study suggests that the benefits of heart stents for stable angina may be due to the placebo effect. The ORBITA trial found no significant improvement in patient symptoms or quality of life after receiving a stent compared to a simulated procedure.
Researchers found that open-label placebos can be effective in treating physical complaints such as chronic back pain and migraine. The placebo effect is enhanced when participants are given a clear explanation of how it works, suggesting that a narrative plays a crucial role.