Evidence map›Paper›PMID 20966190›Full record

ArticleJournal of applied physiology (Bethesda, Md. : 1985)2011

Maternal dietary tryptophan deficiency alters cardiorespiratory control in rat pups.

Eliana M Penatti, Alexis E Barina, Sharat Raju, Aihua Li, Hannah C Kinney, Kathryn G Commons, Eugene E Nattie

Open access · greenAbstract read
In one paragraph

Article in Journal of applied physiology (Bethesda, Md. : 1985), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.4field-weighted citation impact, top 22% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 47 citations in OpenAlex.

  1. Tryptophan's Journey Through Pregnancy: The Role of Serotonin.International journal of tryptophan research : IJTR · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Eliana M PenattiDartmouth Medical School, Dept. of Physiology, Borwell Bldg., 1 Medical Center Dr. HB7700, Lebanon, NH 03756, USA.
Alexis E Barina
Sharat Raju
Aihua Li
Hannah C Kinney
Kathryn G Commons
Eugene E Nattie
Boston Children's Hospital · US

Funding

VENTRAL MEDULLA, BREATHING, AND CENTRAL CHEMORECEPTIONP01HD036379 · NICHD · HARVARD MEDICAL SCHOOL · PI DYMECKI, SUSAN M. · 1998 to 2017
$32.2M
CSF AND THE CENTRAL CHEMICAL CONTROL OF BREATHINGR01HL028066 · NHLBI · DARTMOUTH COLLEGE · PI LI, AIHUA, NATTIE, EUGENE EDWARD · 1985 to 2017
$3.1M
NHLBI NIH HHS R01 HL028066NICHD NIH HHS P01-HD-036379
6 · The paper itself

Abstract

Malnutrition during pregnancy adversely affects postnatal forebrain development; its effect upon brain stem development is less certain. To evaluate the role of tryptophan [critical for serotonin (5-HT) synthesis] on brain stem 5-HT and the development of cardiorespiratory function, we fed dams a diet ∼45% deficient in tryptophan during gestation and early postnatal life and studied cardiorespiratory variables in the developing pups. Deficient pups were of normal weight at postnatal day (P)5 but weighed less than control pups at P15 and P25 (P < 0.001) and had lower body temperatures at P15 (P < 0.001) and P25 (P < 0.05; females only). Oxygen consumption (Vo(2)) was unaffected. At P15, deficient pups had an altered breathing pattern and slower heart rates. At P25, they had significantly lower ventilation (Ve) and Ve-to-Vo(2) ratios in both air and 7% CO(2). The ventilatory response to CO(2) (% increase in Ve/Vo(2)) was significantly increased at P5 (males) and reduced at P15 and P25 (males and females). Deficient pups had 41-56% less medullary 5-HT (P < 0.01) compared with control pups, without a difference in 5-HT neuronal number. These data indicate important interactions between nutrition, brain stem physiology, and age that are potentially relevant to understanding 5-HT deficiency in the sudden infant death syndrome.

Indexed as

Heart RatePulmonary Gas ExchangeRespiratory MechanicsAnimal Nutritional Physiological PhenomenaAnimalsAnimals, NewbornBrain StemDietary ProteinsFemaleHumansInfant, NewbornPregnancyPrenatal Exposure Delayed EffectsRatsRats, Sprague-DawleySerotoninDietary ProteinsSerotoninTryptophan

Identifiers

PMID20966190
PMCPMC3043786
OpenAlexW2084976490

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.