AM enhances uterine wet:dry weight in vivo and water transport across Ishikawa cells
in vitro. (A) Wet:dry weight ratio of wild-type uteri on day 2.5 of pseudopregnancy. n
= three animals per treatment group. *P < 0.05, unpaired
t test. (B) Change in transepithelial resistance (TER) of Ishikawa
cells seeded at densities of 100,000 and 250,000 cells per transwell compared to a
blank transwell between days 1 and 5 of culture. n ≥ three cultures per time point.
**P < 0.01, ***P < 0.001, unpaired
t test at each density compared to blank. (C and D) Changes in
short-circuit current (C) and TER (D) after addition of activators and inhibitors of
ion channels following vehicle- and AM-pre-treated cultures (n = three per
pre-treatment group). (E) Representative image of calcein-loaded Ishikawa cells used
in water permeability experiment. Rectangle encloses representative series of adjacent
cells analyzed for changes in cell height and fluorescence after addition of
hypertonic solution. Scale bar, 50 μm. (F) Percent change in Ishikawa cell height
after vehicle (n = five cumulative treatments from three cultures) and AM (n = six
cumulative treatments from three cultures) pretreatment followed by hypertonic shock.
Data are presented as mean + SEM (vehicle) or mean – SEM (AM). Slopes were calculated
by linear regression analysis. ***P < 0.001, ANCOVA. (G) Percent
change in calcein fluorescent intensity after hypertonic shock. Data are presented as
mean – SEM (vehicle) or mean + SEM (AM). Slopes were calculated by linear regression
analysis. **P < 0.01, ANCOVA.