Research
Hormonal
Spexin gene expression and circulating levels are significantly down-regulated in obese human adipose tissue and serum compared to non-obese individuals.
In obese humans, the body produces significantly less of the peptide Spexin in fat tissue and blood compared to lean people. This deficiency is correlated with higher levels of Leptin and increased fat uptake, suggesting that Spexin plays a role in preventing obesity.
GoodSupportsHIGH confidence
Spexin gene expression was down-regulated 14.9-fold in obese omental and subcutaneous fat. Circulating Spexin changed in parallel, correlating (r = -0.797) with Leptin.
Why this rating
Robust human observational data (microarray, qRT-PCR, immunoassay) showing consistent downregulation.
Source
Spexin is a novel human peptide that reduces adipocyte uptake of long chain fatty acids and causes weight loss in rodents with diet‐induced obesity
José L. Walewski et al. · Obesity · 2014
DOI 10.1002/oby.20725
mechanism_onlyCited 188×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
Related findings · Hormonal
- Initial treatment for type 2 diabetes should be a combination of metformin and either an SGLT-2 inhibitor or a GLP-1 receptor agonist to achieve cardiorenal protection, rather than monotherapy or older agents like sulfonylureas.Strong
- For patients with specific monogenic obesity syndromes (leptin deficiency, POMC/PCSK1/LEPR mutations), targeted pharmacotherapy (recombinant leptin or setmelanotide) is highly effective and should be prioritized, unlike in polygenic obesity.Strong
- Continued weekly administration of 2.4 mg subcutaneous semaglutide prevents weight regain and promotes further weight loss in adults with overweight or obesity, whereas switching to placebo results in significant weight regain.Strong
This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →