Researchers have identified a naturally occurring molecule, lactosylceramide (LacCer), that shows promise as a weight-loss treatment comparable to Ozempic, but without the common gastrointestinal side effects. In a study on obese mice, LacCer effectively reduced appetite, promoted weight loss, and improved glucose tolerance, mirroring the effects of semaglutide (Ozempic). Unlike semaglutide, which mimics the gut hormone GLP-1, LacCer appears to work by influencing the hypothalamus directly, offering a potentially safer and more tolerable alternative for obesity management. Further research is needed to confirm these findings and explore LacCer's potential in humans.
This proposal introduces an effect system to C2x, aiming to enhance code modularity, optimization, and correctness by explicitly declaring and checking the side effects of functions. It defines a set of effect keywords, like reads and writes, to annotate function parameters and return values, indicating how they are accessed. These annotations are part of the function's type and are checked by the compiler, ensuring that declared effects match the function's actual behavior. The proposal also includes a mechanism for polymorphism over effects, enabling more flexible code reuse and separate compilation without sacrificing effect safety. This mechanism allows for abstracting over effects, so that functions can be written generically to operate on data structures with varying levels of mutability.
The Hacker News comments on the C2y effect system proposal express a mix of skepticism and cautious interest. Several commenters question the practicality and performance implications of implementing such a system in C, citing the language's existing complexity and the potential for significant overhead. Concerns are raised about the learning curve for developers and the possibility of introducing subtle bugs. Some find the proposal intriguing from a research perspective but doubt its widespread adoption. A few express interest in exploring the potential benefits of improved code analysis and error detection, particularly for concurrency and memory management, though acknowledge the challenges involved. Overall, the consensus leans towards viewing the proposal as an interesting academic exercise with limited real-world applicability in its current form.
Summary of Comments ( 116 )
https://news.ycombinator.com/item?id=43289245
Hacker News commenters express cautious optimism about the potential of this naturally occurring molecule as a weight-loss drug. Several highlight the need for more research, particularly regarding long-term effects and potential unknown side effects. Some point out that "natural" doesn't inherently mean safe, and many natural substances have negative side effects. Others discuss the societal implications of widespread weight loss drugs, including potential impacts on the food industry and pressures surrounding body image. A few commenters note the similarities to previous "miracle" weight loss solutions that ultimately proved problematic. The overall sentiment is one of interest, but tempered by a healthy dose of skepticism and a desire for more data.
The Hacker News post discussing the MedicalXpress article about a naturally occurring molecule rivaling Ozempic for weight loss generated several comments, primarily focusing on the molecule's potential, mechanism of action, and comparison with existing drugs.
Several commenters expressed cautious optimism, acknowledging the early stage of the research while highlighting the potential benefits if the findings hold true in human trials. They emphasized the need for further research to confirm the efficacy and safety of the molecule.
Some comments delved into the mechanism of action, discussing how the molecule, Lac-Phe, mimics the effects of GLP-1, a hormone that regulates appetite and blood sugar. They compared it to Ozempic and other GLP-1 receptor agonists, pointing out that Lac-Phe might offer similar benefits without the common side effects like nausea and vomiting, though this remains to be seen in human studies. The discussion also touched on the fact that Lac-Phe is a byproduct of protein digestion and is naturally present in fermented foods, raising questions about its bioavailability and potential for dietary supplementation.
A few comments questioned the long-term sustainability of weight loss achieved through appetite suppression, arguing that addressing the underlying causes of obesity, such as lifestyle and metabolic factors, is crucial. They also raised concerns about potential unknown side effects of long-term Lac-Phe use.
Some commenters discussed the implications of this discovery for the pharmaceutical industry, speculating about the potential for developing new weight loss drugs based on Lac-Phe or related molecules. They also debated the potential cost and accessibility of such treatments.
One compelling thread explored the potential link between gut bacteria and obesity, with commenters suggesting that Lac-Phe's effects could be mediated by its influence on the gut microbiome. This connection prompted a discussion about the role of diet and probiotics in managing weight and metabolic health.
Another interesting point raised was the possibility of Lac-Phe having other therapeutic applications beyond weight loss, given its potential impact on glucose homeostasis and insulin sensitivity. This led to speculation about its potential use in managing type 2 diabetes and other metabolic disorders.
Finally, some commenters shared anecdotal experiences with intermittent fasting and other dietary interventions, highlighting the complexities of weight management and the individual variability in response to different approaches.