The phrase "are hypothesized to protect" is correct and usable in written English.
It can be used in scientific or academic contexts when discussing theories or assumptions about the protective effects of certain factors or variables.
Example: "These compounds are hypothesized to protect against oxidative stress in cells."
Alternatives: "are believed to safeguard" or "are thought to shield".
For example, while psychological ill-being seems to have negative effects on the health of African-Americans, positive factors like religious faith, optimism, and social support are hypothesized to protect against cardiovascular disease, says Sims.
Isoflavones possess both estrogenic and anti-estrogenic actions, and are hypothesized to protect against breast cancer.
Isoflavones are hypothesized to protect against breast cancer, but it is not clear whether they act as oestrogens or anti-oestrogens in breast tissue.
Stem cells of somatic tissues are hypothesized to protect themselves from mutation and cancer risk through a process of selective segregation of their template DNA strands during asymmetric division.
High biological diversity also is hypothesized to protect against human and wildlife diseases [2], [3], and reduced disease spread or prevalence has been recognized as an ecosystem service [4].
Interaction with heparan sulfate is hypothesized to protect growth factors against degradation, to create a storage depot for later release, to facilitate assembly of signaling complexes (co-receptor activity), to enable clearance by endocytosis, and to regulate growth factor diffusion through the tissue [22], [23], [24].
Diets that are high in fiber have been hypothesized to protect against breast cancer by inhibiting the intestinal reabsorption of biliary excreted estrogens.
Taurine has been hypothesized to protect against TAA-mediated hepatic steatosis because of its hypolipidemic and antioxidant effects (Balkan et al., 2001).
Lower heart rates, higher arterial pressures, and fewer norepinephrine doses during vasopressin therapy were hypothesized to protect the heart from myocardial ischemia.
Expression of p14ARF is hypothesized to protect cells from oncogenic events by inhibiting MDM2-dependent degradation of p53, facilitating p53-induced apoptosis and cell cycle arrest (Bates et al, 1998).
