Publications by authors named "A Kreger"

Background: Pulmonary hypertension remains difficult to manage in congenital diaphragmatic hernia (CDH). Prenatal therapy may ameliorate postnatal pulmonary hypertension. We hypothesized that intra-amniotic (IA) injection of either sildenafil, a phosphodiesterase 5 inhibitor, or rosiglitazone, a PPAR-γ agonist, or both late in gestation would decrease the detrimental pulmonary vascular remodeling seen in CDH and improve peripheral pulmonary blood flow.

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Article Synopsis
  • Pulmonary hypertension linked to congenital diaphragmatic hernia (CDH) greatly affects patient outcomes, and intra-amniotic sildenafil may serve as an effective prenatal treatment for this condition.
  • In an experiment, rats with CDH that received intra-amniotic sildenafil showed improved lung development metrics, including better blood flow and lung weight ratios, especially when treated at earlier developmental stages (E13.5).
  • The treatment did not adversely impact control fetuses, indicating its safety and potential as a promising prenatal therapeutic approach for CDH-induced pulmonary hypertension.
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Chronic pancreatitis is a debilitating disease affecting millions worldwide. These patients suffer from bouts of severe pain that are minimally relieved by pain medications and may necessitate major surgeries with high morbidity and mortality. Previously, we demonstrated that "chemical pancreatectomy," a pancreatic intraductal infusion of dilute acetic acid solution, ablated the exocrine pancreas while preserving the endocrine pancreas.

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Background: The effectiveness of sildenafil in the management of pulmonary hypertension in congenital diaphragmatic hernia (CDH) has been reported but has not been systematically evaluated. Our studies have also demonstrated that intra-amniotic (IA) sildenafil administration improves pulmonary hypertension in CDH.

Methods: We evaluated the pharmacokinetics of sildenafil after IA administration in pregnant rabbits.

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Chronic pancreatitis is a debilitating disease affecting millions worldwide. These patients suffer from bouts of severe pain that are minimally relieved by pain medications and may necessitate major surgeries with high morbidity and mortality. Previously, we demonstrated that "chemical pancreatectomy," a pancreatic intraductal infusion of dilute acetic acid solution, ablated the exocrine pancreas while preserving the endocrine pancreas.

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