The phrase "are thought to decrease" is correct and usable in written English.
It can be used when discussing beliefs or assumptions about a reduction in quantity, quality, or intensity of something.
Example: "These factors are thought to decrease the overall effectiveness of the treatment."
Alternatives: "are believed to reduce" or "are considered to diminish".
They are thought to decrease delayed graft function (DGF) during kidney transplantation (KT).
However, these habitats are thought to decrease biodiversity, including ground beetle diversity, as compared to other traditional land-uses such as grasslands and semi-natural forests.
Radiographic disease and knee pain are thought to decrease physical activity in people with knee osteoarthritis (OA), but this has not been formally studied.
They are thought to decrease the generation of ammonia by bacteria, render the ammonia inabsorbable by converting it to ammonium (NH4), and increase transit of bowel content through the gut.
However, in pathological states such as muscular dystrophies, satellite cell number as well as their doubling potential are thought to decrease, resulting in impaired regenerative potential [3], [4].
By extension, opioid antagonists, such as naltrexone, are thought to decrease ethanol consumption because they block the actions of these endogenously released opioids.
While most of us make do with a pack of frozen peas to alleviate sports injuries, many elite athletes are beginning to utilise 'whole body cryotherapy' (WBC) - the exposure of the entire body to extreme cold (usually between -80C to -120C) which is thought to decrease inflammation and pain and promote healing and recovery, as well as instigating an endorphin high.
Urbanization is thought to decrease riparian tree canopy cover, but this outcome may vary depending on geographic context.
The martensitic transformation is thought to decrease the applied stress amplitude due to volumetric expansion and strain associated with phase transformation.
Microgravity is thought to decrease osteoblastic activity and induce osteoporosis during spaceflight, but the mechanisms, particularly the attendant changes in gene expression, are not well understood.
