Given an abstract, indicate which of the provided candidate titles (Option1 and Option2) best describes it (respond with the text of the title, not option1/2).

Abstract: The effect of tauroursodeoxycholate (TU) infusion on the plasma level and biliary transport maximum (Tm) of sulfobromophthalein (BSP) was examined in male rats during a continuous intravenous infusion of BSP with different TU infusion rates. The infusion rate of 0.6 mumol/min/100 gm body weight of TU caused significantly higher bile flow and BSP Tm values compared with the respective control values in rats with only a BSP infusion. These values, however, were significantly lower than values obtained by an equimolar infusion of taurocholate (TC). The higher infusion rates of TU (1.2 and 1.8 mumol/min/100 gm) tended to cause higher bile flow rates, but the BSP Tm value did not increase beyond the value obtained at the lower infusion rate (0.6 mumol/min/100 gm). In the highest TU infusion rate study (1.8 mumol/min/100 gm), plasma BSP concentrations were significantly higher than corresponding control values or values at a lower TU or TC infusion rate. It was concluded that in rats TU can significantly increase the BSP Tm, but to a lesser extent than TC. Furthermore, it was suggested that TU infusion at a higher rate significantly interferes with the hepatic uptake (or storage) of BSP.
Which is the apt title for the abstract? option1: Effect of tauroursodeoxycholate on the biliary transport maximum of sulfobromophthalein in the rat. option2: Fusiform basilar artery aneurysm in a 33-month-old child.
Effect of tauroursodeoxycholate on the biliary transport maximum of sulfobromophthalein in the rat.

Abstract: The role in the pathogenesis of immune complex-mediated glomerulonephritis of C5 or some terminal complement component dependent upon C5 for activation was explored in a congenic strain of C5 sufficient (NSN) and C5 deficient (OSN) mice. When these mice were given daily injections of heterologous protein, horse apoferritin (HAF), there were profound differences between the strains in the development of glomerulonephritis and renal dysfunction. When NSN and OSN mice produced low levels of anti-HAF, NSN mice developed extensive glomerular deposits of HAF and immune reactants and a mild proliferative glomerulonephritis. In contrast, comparable OSN mice developed only trace mesangial localization of HAF and no glomerular lesions by light microscopy. When NSN and OSN mice produced high levels of anti-HAF, both strains had equivalent glomerular immune deposits; however, NSN mice developed a severe necrotizing and crescentic glomerulonephritis, while OSN mice had much less glomerular injury. Compared to OSN mice, these NSN mice also had much more severe tubulointerstitial injury, and significantly higher serum creatinine levels. Thus, in this experimental model, the absence of C5 resulted in reduced glomerular immune complex localization when there were small amounts of circulating immune reactants; and in markedly reduced glomerular leukocyte influx, necrosis and crescent formation, when large amounts of immune reactants have localized in glomeruli. These effects could be mediated by C5 (such as C5a) or by some terminal complement component(s) dependent upon C5 for activation.
Which is the apt title for the abstract? option1: Immune complex induced glomerular lesions in C5 sufficient and deficient mice. option2: Current issues in transfusion therapy. 1. Risks of infection.
Immune complex induced glomerular lesions in C5 sufficient and deficient mice.

Abstract: There is growing evidence that failure to diagnose and manage hearing problems early in their course results in significant and--to some extent--irreversible sensory deprivation. The primary care physician should routinely screen patients over age 50 for pure-tone sensitivity as part of the general physical examination. Battery-operated, in-office, limited-frequency audiometers are available for under $350.
Which is the apt title for the abstract? option1: Restoring hearing to the older patient: the physician's role. option2: Cocaine kindling [letter]
Restoring hearing to the older patient: the physician's role.