Stomach distension increases efferent muscle sympathetic nerve activity and blood pressure in healthy humans

Rossi, P.; Andriesse, Gunnar I.; Oey, P. L.; Wieneke, G.H.; Roelofs, J. M. M.; Akkermans, L.M.A.

doi:10.1016/s0022-510x(98)00276-7

Cited by 114 publications

(141 citation statements)

References 35 publications

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“…Hence, in flexed posture, parasympathetic activity tended to be dominant in the heart, in contrast to past reports. These previous studies artificially increased pressure from inside of the stomach using a balloon or bag (18,27,30,31). However, the current flexion posture adds pressure from outside of the stomach, and the method of increasing this pressure differed.…”

Section: Eggmentioning

confidence: 95%

“…This stimulation of the vagus nerve influences not only the stomach but other organs and tissues. For example, there are some reports of reactions of the heart and vascular system being triggered by an artificial increase in internal gastric pressure (18,27,30,31). These reports indicate that blood pressure and heart rate increased as a result of sympathetic nervous activity of the heart and vascular system.…”

Section: Eggmentioning

confidence: 99%

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Impact of lumbar kyphosis on gastric myoelectrical activity and heart rate variability in a model using flexion posture in healthy young adults

Tsuchie¹,

Fukata²,

Takahashi³

et al. 2011

Biomed. Res.

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Relationship between lumbar kyphotic deformity and gastroesophageal reflux disease has been indicated in recent years. But it remains unclear whether kyphotic deformity of the lumbar vertebrae affects gastric motility. Healthy young adults (n = 20) were analyzed by recording the electrogastrography (EGG) and heart rate variability (HRV) before and after meal with flexion and neutral postures. Dominant power (DP) and dominant frequency (DF) of EGG and low frequency (LF) and high frequency (HF) of HRV were analyzed in blocks of 10 minutes' duration. In neutral posture, DPs of all postprandial durations were significantly higher than those during fasting in two channels (P < 0.05, P < 0.01). However, in flexion posture, only DP at postprandial 20 (10-20 minutes after eating) in a channel was significantly higher than that during fasting (P < 0.05). DF in neutral posture was significantly higher than that in flexion posture at postprandial 20 in a channel (P < 0.05). The standard deviation of DF at postprandial 10 in flexion posture was significantly higher than that during fasting in a channel (P < 0.05). LF/HF in neural posture was significantly higher than that in flexion posture at postprandial 10 (P < 0.05). These findings suggest that inhibition of stomach myoelectrical activity was induced in the flexion posture in this lumbar kyphotic model, and autonomic activity as assessed by HRV did not accord with that expected from EGG.

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Section: Eggmentioning

confidence: 95%

Section: Eggmentioning

confidence: 99%

Impact of lumbar kyphosis on gastric myoelectrical activity and heart rate variability in a model using flexion posture in healthy young adults

Tsuchie¹,

Fukata²,

Takahashi³

et al. 2011

Biomed. Res.

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“…No entanto, a distensão gástrica 18,19 e a osmolalidade 20 são duas vertentes importantes que buscam explicar estes fenômenos. A primeira evidencia que após a IA ocorra estimulação dos mecanorreceptores presentes no estômago, ocasionando aumento da atividade nervosa simpática muscular através de fibras aferentes do nervo esplâncnico 35 .…”

Section: Discussionunclassified

“…Já é demonstrado que o consumo de água tem se tornado um fator profilático e terapêutico para pacientes que sofrem de hipotensão ortostática [14][15][16] , e tendo em vista que o tratamento medicamentoso é dispendioso e o efeito bastante questionado 17 , percebeu-se a necessidade de encontrar os reais estímulos fisiológicos causados pela IA que induzem as respostas autonômicas, na qual duas vertentes vêm sendo alvo de maiores estudos para esclarecer tal fenômeno como a distensão gástrica 18,19 e a osmolalidade 20, 21 .…”

Section: Introductionunclassified

Ingestão De Água No Sistema Nervoso Autônomo: Uma Revisão Sistemática E Meta-Análise

Rocha

Ramos²,

Ricardo³

2016

Rev Bras Med Esporte

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RESUMOVerificar, por meio de uma revisão sistemática, o efeito da ingestão de água (IA) no sistema nervoso autônomo (SNA) e variáveis hemodinâmicas em indivíduos adultos. Foram analisados estudos publicados entre 2000 e 2015, tendo como referência a base de dados Medline via Pubmed, sendo utilizado na construção da frase de pesquisa o MeSH. Foram estabelecidos os seguintes critérios de inclusão: ensaios clínicos controlados e randomizados (ECCR) realizados em humanos, na língua inglesa. Como critério de exclusão: intervenções pouco claras, mal descritas ou inadequadas e na forma de resumos. Utilizou-se as seguintes variáveis para a seleção dos estudos: frequência cardíaca (FC), pressão arterial (PA), componente de alta frequência (AF) e resistência vascular periférica (RVP). Foi usada a sistematização PRISMA para a elaboração desta revisão e a realização de uma meta-análise com o objetivo de evidenciar matematicamente os resultados da frequência cardíaca após a ingestão de água em sete estudos que avaliaram esta variável. Fizeram parte desta revisão 10 ECCR envolvendo 246 indivíduos com idade entre 19 a 64 anos, sendo que 34,55% do sexo masculino. A maioria dos ECCR analisados apresentou alterações após a IA. As alterações comumente observadas foram: diminuição da FC (estatisticamente significativa p < 0,001), aumento da AF e RVP. Contudo, em relação à PA, os resultados demonstraram-se conflitantes, com estudos que evidenciaram aumento e outros que não observaram diferença significativa. Esta revisão evidencia os efeitos da IA no SNA, em especial na FC, AF e RVP, não obstante em relação às alterações hemodinâmicas expressas pela PA permanece ainda um óbice em relação à comunidade científica.Descritores: ingestão de líquidos, sistema nervoso autônomo, pressão arterial, frequência cardíaca, resistência vascular. ABSTRACT

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“…27,28 In this protocol, thermogenesis was likely the same between treatments because the volume and temperature of the water was the same. It has previously been shown that gastric emptying is complete in less than 1 h, 29 so the effects of gastric distension on hemodynamics 30 were likely minimal by the end of the trial.…”

Section: Between Groups (Independent T-test)mentioning

confidence: 98%

Effect of acute salt ingestion upon core temperature in healthy men

et al. 2011

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Salt intake may cause conflict for the cardiovascular system as it attempts to simultaneously maintain blood pressure (BP) and temperature homeostasis. Our objective was to determine the effect of a salt and water load vs. a water load upon rectal temperature (Tre) in healthy volunteers. Twenty-two healthy, non-hypertensive Caucasian men enrolled in two trials in which they ingested either salt and body temperature water (SALT), or body temperature water (WATER). BP, Tre, cardiac index, peripheral resistance and urine output were monitored one, 2 and 3 h post-baseline. Changes in the dependent variables were compared between those subjects who were salt sensitive (SS) and those who were salt resistant (SR) at the same time intervals. The percentage change reduction in Tre was greater following SALT compared with WATER at +120 min (À1.1±0.7 vs. À0.6 ± 0.5%, P¼0.009) and at +180 min (À1.3 ± 0.8 vs. À0.7 ± 0.6%, P¼0.003). The percentage change reduction in Tre was greater in the SR group compared with the SS group at +180 min (À1.6 ± 0.9 vs. À0.9 ± 0.5%, P¼0.043). SALT decreased Tre more than WATER. SS individuals maintained temperature homeostasis more effectively than SR individuals following SALT. These results may explain why some individuals are SS while others are SR. If these results are generalizable, it would be possible to account for the role of sodium chloride in the development of SS hypertension.

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Stomach distension increases efferent muscle sympathetic nerve activity and blood pressure in healthy humans

Cited by 114 publications

References 35 publications

Impact of lumbar kyphosis on gastric myoelectrical activity and heart rate variability in a model using flexion posture in healthy young adults

Impact of lumbar kyphosis on gastric myoelectrical activity and heart rate variability in a model using flexion posture in healthy young adults

Ingestão De Água No Sistema Nervoso Autônomo: Uma Revisão Sistemática E Meta-Análise

Effect of acute salt ingestion upon core temperature in healthy men

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