Cyclic AMP-sensitive chloride efflux in rabbit pancreatic acini.

Abstract:

:We studied chloride efflux from isolated rabbit pancreatic acini in suspension, by loading with 36Cl to steady state and rapidly washing acini by filtration to determine 36Cl cpm/micrograms DNA remaining. Linear loss of acinar chloride occurred over 5 min (k = 0.038 +/- 0.008 min-1, n = 5). Forskolin (5 x 10(-5) M) increased the rate of chloride efflux (k = 0.100 +/- 0.016 min-1, n = 5, p less than 0.001) 2.6-fold. At 5 min, forskolin increased acinar cAMP levels (1065 +/- 254 versus 7 +/- 2 pmol/mL, n = 5, p less than 0.005) and percentage of chloride efflux (37.4 +/- 2.3 versus 26.0 +/- 2.2%, n = 13, p less than 0.005). The chloride channel inhibitor anthracene-9-carboxylic acid (10(-3) M) had no effect on chloride loss from acini exposed to vehicle (30.9 +/- 1.9 versus 29.9 +/- 2.3%, n = 4), but completely inhibited forskolin-stimulated efflux at 5 min (40.0 +/- 2.4 versus 29.3 +/- 2.4%, n = 5, p less than 0.005). Manipulation of extracellular calcium concentration demonstrated that chloride efflux was not coupled to zymogen granule amylase release. Secretin (10(-7) M) increased acinar cAMP levels (68 +/- 22 versus 7 +/- 2 pmol/mL, n = 5, p less than 0.05) and significantly increased the loss of chloride from acini (34.9 +/- 1.4 versus 26.1 +/- 1.7%, n = 7, p less than 0.005) without affecting amylase release. Secretagogue-stimulated amylase release by cholecystokinin octapeptide (10(-8) M) and carbamylcholine (10(-5) M), did not increase chloride efflux at 5 min.(ABSTRACT TRUNCATED AT 250 WORDS)

journal_name

Pediatr Res

journal_title

Pediatric research

authors

Kopelman H,Gauthier C

doi

10.1203/00006450-199106010-00002

subject

Has Abstract

pub_date

1991-06-01 00:00:00

pages

529-33

issue

6

eissn

0031-3998

issn

1530-0447

journal_volume

29

pub_type

杂志文章
  • Effect of human milk or formula on gastric function and fat digestion in the premature infant.

    abstract::The effect of diet, human milk or formula, on gastric function (lipase and pepsin activity, pH, and volume) and intragastric digestion of fat was assessed in 28 appropriate for gestational age preterm infants (gestational age, 28.9 +/- 1.4, 29.1 +/- 0.9, 29.5 +/- 0.6 wk; birth weight, 1.00 +/- 0.14 to 1.18 +/- 0.07 kg...

    journal_title:Pediatric research

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1203/00006450-199609000-00011

    authors: Armand M,Hamosh M,Mehta NR,Angelus PA,Philpott JR,Henderson TR,Dwyer NK,Lairon D,Hamosh P

    更新日期:1996-09-01 00:00:00

  • Estimates of neonatal morbidities and disabilities at regional and global levels for 2010: introduction, methods overview, and relevant findings from the Global Burden of Disease study.

    abstract:BACKGROUND:Neonatal mortality and morbidity are increasingly recognized as important globally, but detailed estimates of neonatal morbidity from conditions and long-term consequences are yet to be published. METHODS:We describe the general methods for systematic reviews, meta-analyses, and modeling used in this supple...

    journal_title:Pediatric research

    pub_type: 历史文章,杂志文章

    doi:10.1038/pr.2013.203

    authors: Blencowe H,Vos T,Lee AC,Philips R,Lozano R,Alvarado MR,Cousens S,Lawn JE

    更新日期:2013-12-01 00:00:00

  • Epstein-Barr virus-transformed B-cell line (DV-1) derived from bone marrow of a patient with severe combined immunodeficiency and immunoblastic lymphoma.

    abstract::An Epstein-Barr virus-transformed B-cell line derived from a patient with severe combined immunodeficiency who died of a lymphoreticular malignancy has been characterized. The line derived from bone marrow cultures and designated DV-1 shows surface and cytoplasmic IgM and staining with fluorescent monoclonal antibodie...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-198704000-00003

    authors: Rosenblatt HM,Lewis DE,Sklar J,Cleary ML,Parikh N,Galili N,Ritz J,Shearer WT

    更新日期:1987-04-01 00:00:00

  • Insulin-like growth factor I in substrate-deprived, growth-retarded fetal rats.

    abstract::Plasma, amniotic fluid, and tissue concentrations of IGF-I were examined in nutritionally deprived, growth-retarded fetal rats to determine whether IGF-I concentration serves as a marker for nutritional status. Growth retardation was induced by 72 h of maternal fasting. Twenty-three control and 17 growth-retarded fetu...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-199108000-00006

    authors: Bernstein IM,DeSouza MM,Copeland KC

    更新日期:1991-08-01 00:00:00

  • Preserved fetal plasma amino acid concentrations in the presence of maternal hypoaminoacidemia.

    abstract::The effects on the conceptus of persistently decreased maternal plasma amino acid concentrations were studied in pregnant rats by the infusion of glucagon (0.21 mg/day) to the mother from day 14 to 20 of gestation with a subcutaneous, osmotically driven minipump. Controls received diluent. The experimental animals eit...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-198611000-00002

    authors: Domenech M,Gruppuso PA,Nishino VT,Susa JB,Schwartz R

    更新日期:1986-11-01 00:00:00

  • Urine and kidney epidermal growth factor: ontogeny and sex difference in the mouse.

    abstract::We have explored the physiology of urinary epidermal growth factor (EGF) in the mouse by studying its ontogeny, and the effects of testosterone therapy on immunoreactive EGF (IR-EGF) concentrations in urine, kidney, serum and submandibular gland (SMG). Urine IR-EGF (U-EGF) increased about 100-fold relative to urea con...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-198505000-00004

    authors: Perheentupa J,Lakshmanan J,Fisher DA

    更新日期:1985-05-01 00:00:00

  • Effects of acute hypercapnia on maternal and fetal vasopressin and catecholamine release.

    abstract::Although fetal asphyxia, i.e. hypoxemia, acidosis, and hypercapnia, increases plasma arginine vasopressin (AVP) greater than 40-fold, hypoxemia and metabolic acidosis occurring independently cause only 5-fold and 2-fold increases, respectively. To determine the effects of hypercapnia on AVP release, we examined the ef...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-199110000-00014

    authors: Faucher DJ,Laptook AR,Porter JC,Rosenfeld CR

    更新日期:1991-10-01 00:00:00

  • Ontogeny of growth hormone releasing hormone and insulin-like growth factors-I and -II messenger RNA in rat placenta.

    abstract::Hypothalamic growth hormone releasing hormone (GHRH) stimulates pituitary growth hormone secretion, which is essential for normal postnatal growth. Reports of an immunoreactive and biologically active GHRH-like peptide in placenta led us to investigate placental expression of GHRH mRNA. Placentas from d 19 gestation f...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-199105010-00019

    authors: Pescovitz OH,Johnson NB,Berry SA

    更新日期:1991-05-01 00:00:00

  • Myocardial dysfunction in group B streptococcal shock.

    abstract::A rabbit model of group B Streptococcal (GBS) shock was used to determine if myocardial dysfunction contributes to GBS shock and, if so, to ascertain if prostaglandins modulate this dysfunction. The infusion of heat-killed GBS (group I) produced a dramatic decrease in the first derivative of left ventricular pressure ...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-198506000-00001

    authors: Peevy KJ,Chartrand SA,Wiseman HJ,Boerth RC,Olson RD

    更新日期:1985-06-01 00:00:00

  • Relationship between PCO2 and unfavorable outcome in infants with moderate-to-severe hypoxic ischemic encephalopathy.

    abstract:BACKGROUND:Abnormal PCO2 is common in infants with hypoxic ischemic encephalopathy (HIE). The objective was to determine whether hypocapnia was independently associated with unfavorable outcome (death or severe neurodevelopmental disability at 18 mo) in infants with moderate-to-severe HIE. METHODS:This was a post hoc ...

    journal_title:Pediatric research

    pub_type: 杂志文章,随机对照试验

    doi:10.1038/pr.2016.62

    authors: Lingappan K,Kaiser JR,Srinivasan C,Gunn AJ

    更新日期:2016-08-01 00:00:00

  • Role of pili in Haemophilus influenzae adherence to, and internalization by, respiratory cells.

    abstract::To determine the role of pili in mediating adherence of type b and nontypeable Haemophilus influenzae to several respiratory cell types, piliated bacteria, nonpiliated phase variants, and nonpiliated mutants possessing insertionally inactivated pilin genes were tested. Both piliated and nonpiliated strains adhered to ...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-199602000-00025

    authors: Gilsdorf JR,Tucci M,Marrs CF

    更新日期:1996-02-01 00:00:00

  • The developing gut-lung axis: postnatal growth restriction, intestinal dysbiosis, and pulmonary hypertension in a rodent model.

    abstract:BACKGROUND:Postnatal growth restriction (PNGR) in premature infants increases risk of pulmonary hypertension (PH). In a rodent model, PNGR causes PH, while combining PNGR and hyperoxia increases PH severity. We hypothesized that PNGR causes intestinal dysbiosis and that treatment with a probiotic attenuates PNGR-associ...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1038/s41390-019-0578-2

    authors: Wedgwood S,Warford C,Agvatisiri SR,Thai PN,Chiamvimonvat N,Kalanetra KM,Lakshminrusimha S,Steinhorn RH,Mills DA,Underwood MA

    更新日期:2020-02-01 00:00:00

  • Microbiologic and histologic characteristics of the extremely preterm infant's placenta predict white matter damage and later cerebral palsy. the ELGAN study.

    abstract::Inflammatory phenomena seem to contribute to the occurrence of perinatal cerebral white matter damage and CP. The stimulus that initiates the inflammation remains obscure. One thousand two hundred forty-six infants born before the 28th postmenstrual week had a protocol ultrasound scan of the brain read concordantly by...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/PDR.0b013e3181bf5fab

    authors: Leviton A,Allred EN,Kuban KC,Hecht JL,Onderdonk AB,O'shea TM,Paneth N

    更新日期:2010-01-01 00:00:00

  • Severe congenital hypothyroidism due to a homozygous mutation of the betaTSH gene.

    abstract::Isolated TSH deficiency leading to hypothyroidism seems to be a rare condition, escaping the diagnosis by neonatal screening programs, which are based on the primary determination of TSH. This is the first report of a case with an autosomal recessive TSH defect caused by a homozygous mutation of the betaTSH gene that ...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-199908000-00007

    authors: Biebermann H,Liesenkötter KP,Emeis M,Oblanden M,Grüters A

    更新日期:1999-08-01 00:00:00

  • Interaction between pulmonary surfactant and vernix: a potential mechanism for induction of amniotic fluid turbidity.

    abstract::The development of amniotic fluid turbidity during the third trimester is a known marker of fetal lung maturity. We hypothesized that this turbidity results from detachment of vernix caseosa from the fetal skin secondary to interaction with pulmonary-derived phospholipids in the amniotic fluid. To test this hypothesis...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-200007000-00021

    authors: Narendran V,Wickett RR,Pickens WL,Hoath SB

    更新日期:2000-07-01 00:00:00

  • Immunoblot analysis of antibody binding to polypeptides of Borrelia burgdorferi in children with different clinical manifestations of Lyme disease.

    abstract::We analyzed by means of immunoblot technique the patterns of antibodies binding to polypeptides of Borrelia burgdorferi B31 in the sera of 21 children with different stages of Lyme disease. All sera but one recognized the flagellar protein 41 kD and all but two the 83-kD protein. The number of proteins recognized rose...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-198910000-00019

    authors: Nadal D,Taverna C,Hitzig WH

    更新日期:1989-10-01 00:00:00

  • Studies of the organ distribution in mice of teniposide liposomes designed for treatment of diseases in the mononuclear phagocytic system.

    abstract::Liposomes can be used for the delivery of drugs in cancer chemotherapy. After i.v. injection liposomes are to a large extent taken up by the mononuclear phagocytic system (MPS). When treating diseases in the MPS, such as the histiocytic syndromes, this property is of potential value for drug targeting and may lead to ...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-199507000-00002

    authors: Liliemark E,Liliemark J,Kållberg N,Björkholm M,Sjöström B,Peterson C

    更新日期:1995-07-01 00:00:00

  • Effects of maternal-fetal transmission of viruses and other environmental agents on lung development.

    abstract::New information is emerging concerning the influence of environmental factors (e.g., viruses, pollutants, nutrients) on fetal lung development and the prenatal modulation of cellular and molecular effectors essential to the control of airway function, which may shed new light into the pathogenesis of chronic obstructi...

    journal_title:Pediatric research

    pub_type: 杂志文章,评审

    doi:10.1038/s41390-019-0657-4

    authors: Piedimonte G,Harford TJ

    更新日期:2020-01-01 00:00:00

  • Heart rate variability: impact of differences in outlier identification and management strategies on common measures in three clinical populations.

    abstract::Heart rate variability (HRV) is reported increasingly in pediatric research, but different strategies used to identify and manage potential outlier beats impact HRV parameter values in adults and animals. Do they in pediatrics? To compare the impact of different strategies to identifying and managing outliers, we used...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/PDR.0b013e318123fbcc

    authors: Kemper KJ,Hamilton C,Atkinson M

    更新日期:2007-09-01 00:00:00

  • High protein pre-term infant formula: effect on nutrient balance, metabolic status and growth.

    abstract::Several lines of evidence suggest that formula with protein content of 3.0 g/100 kcal does not fully meet the protein needs of very-low-birth weight infants. Our purpose was to compare nitrogen balance, metabolic status and growth in infants fed a standard (3.0 g/100 kcal; RegPro) and high (3.6 g/100 kcal; HiPro) prot...

    journal_title:Pediatric research

    pub_type: 杂志文章,随机对照试验

    doi:10.1203/01.pdr.0000196376.99101.34

    authors: Cooke R,Embleton N,Rigo J,Carrie A,Haschke F,Ziegler E

    更新日期:2006-02-01 00:00:00

  • Increase of tryptophan and 5-hydroxyindole acetic acid in the brain of ornithine carbamoyltransferase deficient sparse-fur mice.

    abstract::Sparse-fur mice, 28 d of age with the x-chromosomal inherited defect of ornithine carbamoyltransferase, were used to investigate if tryptophan and the serotonin pathway in the brain are affected in this animal model which closely resembles the human inborn error of metabolism. Increased concentrations of tryptophan an...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-198404000-00014

    authors: Bachmann C,Colombo JP

    更新日期:1984-04-01 00:00:00

  • Differential effects of glucocorticoids and mineralocorticoids on the mRNA expression of colon ion transporters in infant rats.

    abstract::Several epithelial ion transporters are developmentally regulated in the preweaning period, at the time when the circulating levels of glucocorticoid and mineralocorticoid hormones increase. The specific role of glucocorticoids and mineralocorticoids in the maturation of epithelial ion transport is still disputed. In ...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-199508000-00005

    authors: Wang ZM,Yasui M,Celsi G

    更新日期:1995-08-01 00:00:00

  • A deletion in the long arm of chromosome 18 in a child with serum carnosinase deficiency.

    abstract::The dipeptides carnosine and anserine, found exclusively in meats, are hydrolyzed in serum by the enzyme carnosinase. Several reports of serum carnosinase deficiency describe a variable phenotype, which ranges from normal to severe psychomotor retardation, hypotonia, and myoclonic seizures in the first year of life. W...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-199702000-00009

    authors: Willi SM,Zhang Y,Hill JB,Phelan MC,Michaelis RC,Holden KR

    更新日期:1997-02-01 00:00:00

  • Quantitative evaluation of the extent of hepatic enzyme changes in Reye syndrome compared with normal liver or with non-Reye liver disorders: objective criteria for animal models.

    abstract::Five enzymes were measured in 50 liver specimens (18 normal liver, 20 Reye liver, 12 diverse liver disorders other than Reye syndrome). The enzymes were: glutamic dehydrogenase (E.C. 1.4.1.3), monoamine oxidase (E.C. 1.4.3.4), lactate dehydrogenase (E.C. 1.1.1.27), D-glucose-6-phosphate dehydrogenase (E.C. 1.1.1.49), ...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-198501000-00006

    authors: Mitchell RA,Arcinue EL,Partin JC,Partin JS,Ram ML,Chang CH,Smialek J,Sarnaik A

    更新日期:1985-01-01 00:00:00

  • Factors influencing gastrointestinal tract and microbiota immune interaction in preterm infants.

    abstract::The role of microbial colonization is indispensable for keeping a balanced immune response in life. However, the events that regulate the establishment of the microbiota, their timing, and the way in which they interact with the host are not yet fully understood. Factors such as gestational age, mode of delivery, envi...

    journal_title:Pediatric research

    pub_type: 杂志文章,评审

    doi:10.1038/pr.2015.54

    authors: Collado MC,Cernada M,Neu J,Pérez-Martínez G,Gormaz M,Vento M

    更新日期:2015-06-01 00:00:00

  • Membrane NADPH oxidase activity and cell size in bovine neonatal and adult neutrophils.

    abstract::Neutrophils (PMN) from newborn calves generate significantly less superoxide anion (O2-) than do their adult counterparts after stimulation with direct protein kinase C agonists. To better understand this observation, we compared the activity and kinetics of NADPH oxidase in membrane fractions from phorbol 12-myristat...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-199010000-00005

    authors: Doré M,Slauson DO,Neilsen NR

    更新日期:1990-10-01 00:00:00

  • The effects of low protein during gestation on mouse pancreatic development and beta cell regeneration.

    abstract::Beta cells are partially replaced in neonatal rodents after deletion with streptozotocin (STZ). Exposure of pregnant rats to a low protein (LP) diet impairs endocrine pancreas development in the offspring, leading to glucose intolerance in adulthood. Our objective was to determine whether protein restriction has a sim...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/PDR.0b013e3181e17c90

    authors: Cox AR,Gottheil SK,Arany EJ,Hill DJ

    更新日期:2010-07-01 00:00:00

  • The distribution of T and B lymphocyte populations and MHC class II expression in human fetal and postnatal intestine.

    abstract::The development of the intestinal mucosal immune barrier is an important protective adaptation for postnatal life. The distribution and phenotype of T and B lymphocytes in human fetal intestine and lymphoid tissues have been characterized and compared to the distribution and phenotype of lymphocytes in postnatal intes...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-199003000-00007

    authors: Russell GJ,Bhan AK,Winter HS

    更新日期:1990-03-01 00:00:00

  • Developmental regulation of the sarcoplasmic reticulum calcium pump in the rabbit heart.

    abstract::Previous studies have demonstrated that myocardial function changes during mammalian perinatal development. The purpose of this study was to evaluate the subcellular basis underlying the slower relaxation in the developing heart by examining perinatal changes in sarcoplasmic reticulum (SR) function, and in SR Ca2+ pum...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1203/00006450-199205000-00012

    authors: Fisher DJ,Tate CA,Phillips S

    更新日期:1992-05-01 00:00:00

  • Aminophylline for renal protection in neonatal hypoxic-ischemic encephalopathy in the era of therapeutic hypothermia.

    abstract:BACKGROUND:Neonates with hypoxic-ischemic encephalopathy (HIE) frequently develop acute kidney injury (AKI). Aminophylline has been shown to reduce severe renal dysfunction in neonates after perinatal asphyxia. However, the effect of aminophylline on renal function in neonates undergoing hypothermia has not been studie...

    journal_title:Pediatric research

    pub_type: 杂志文章

    doi:10.1038/s41390-020-0999-y

    authors: Chock VY,Cho SH,Frymoyer A

    更新日期:2020-06-05 00:00:00