Daniel B Hawley

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OBJECTIVES To examine whether geographic proximity to mammography facilities influences mammogram utilization. DESIGN Retrospective cohort analysis. SETTING Rural state. PARTICIPANTS Female Kansas Medicare beneficiaries aged 65 to 79 (N=117,901). MEASUREMENTS Using Medicare claims data, we measured county-level mammography rates for beneficiaries in(More)
The effects of the selective CCK-A antagonist L-365,031 and the selective CCK-B antagonist L-365,260 on morphine analgesia and opiate tolerance and dependence in rats were examined. L-365,031 and L-365,260 had no effect on baseline pain thresholds in the radiant heat tail flick test but enhanced analgesia induced by a submaximal dose of morphine (4 mg/kg).(More)
The potent and selective non-peptide cholecystokinin (CCK) antagonist L-364,718 (0.5-2.0 mg/kg s.c.) enhanced the analgesia induced by acute morphine treatment in the rat tail flick test. Chronic treatment with L-364,718 (1.0 mg/kg) prevented the development of tolerance to morphine analgesia (after a 6 day period of morphine treatment) but did not(More)
Hypertension is associated with thickening of the wall of resistance vessels, but the cellular or genetic basis of this is unclear. Cell proliferation and intracellular alkalinization via increased Na+/H+ exchange are linked in the response of tissues to growth factors. To define a possible cellular basis for vascular medial thickening in hypertension, we(More)
The effects of some biologically active metabolites of tryptophan on the high pressure neurological syndrome (HPNS) were studied. Kynurenic acid, quinolinic acid, 5-hydroxytryptophan, kynurenine and 3-hydroxyanthranilic acid, at doses within the physiological range, were administered exogenously to rats prior to exposure to increased pressure and any(More)
Male mice were exposed to 50 atmospheres absolute (ATA). He for 30 min, twice weekly for 5 wk and their fertility assessed by subsequently mating with untreated virgin females. The exposure schedule was designed to provide compression and decompression times the same as previous positive studies of hyperbaric-induced subfertility but with much shorter(More)
Pregnant T-O mice were exposed to 50 ATA He-O2 pressure for 4 days at different stages of gestation: 4-7, 6-9, and 9-12 days gestation. Controls were exposed to 1 atmosphere absolute (ATA) air. After the exposure period, pregnancy continued until 18 days gestation when the mice were killed and autopsied. Data were collected relating to the litters and(More)
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