Journals / Turkish Journal of Gastroenterology / 2011 / Cilt: 22 - Sayı: 3

Alterne tip irritabl barsak sendromlu hastaların ishal ve kabızlık dönemlerinde yemek sonrası trombositten fakir plazmada 5-hidroksitriptamin konsantrasyonları

Postprandial platelet-poor plasma 5-hydroxytryptamine concentrations during diarrhea and constipation periods of alternatingtype irritable bowel syndrome patients

Pages
270–278
DOI
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⚡ TL;DR(Too Long; Didn't Read)

These results suggest that differences in plasma levels of serotonin between diarrhea and constipation may underlie the pathogenesis of alternating-type irritable bowel syndrome and could be involved in some aspects of symptomatology.

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Objective & Hypothesis:Background/aims: Our aim was to measure concentrations of platelet-poor plasma 5-hydroxytryptamine and to assess any relationship with gastrointestinal symptomatology under fasting and fed conditions in alternating-type irritable bowel syndrome during both constipation and diarrhea periods separately.
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Key Findings & Data:Methods: Nine patients with alternating diarrhea and constipation symptoms and 9 controls were enrolled.
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Conclusion & Impact:These results suggest that differences in plasma levels of serotonin between diarrhea and constipation may underlie the pathogenesis of alternating-type irritable bowel syndrome and could be involved in some aspects of symptomatology.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Background/aims: Our aim was to measure concentrations of platelet-poor plasma 5-hydroxytryptamine and to assess any relationship with gastrointestinal symptomatology under fasting and fed conditions in alternating-type irritable bowel syndrome during both constipation and diarrhea periods separately. Results of the two periods were compared with each other as well as with the results of the controls. Methods: Nine patients with alternating diarrhea and constipation symptoms and 9 controls were enrolled. Serial plasma 5-hydroxytryptamine was measured for 1 hour under fasting and for 3 hour after a standard carbohydrate meal. Patients underwent the same measurements during constipation and diarrhea periods separately. Serum 5-hydroxytryptamine concentrations were determined by high-performance liquid chromatography. Symptomatology was assessed throughout the study. Results: Patients exhibited higher concentrations of platelet-poor plasma 5-hydroxytryptamine under fed conditions during diarrhea, especially at postprandial 30 minutes (p<0.05) compared with concentrations during constipation. Increases in postprandial plasma 5-hydroxytryptamine concentrations relative to fasting concentrations were also significantly higher during the diarrhea period than during constipation and in controls (p<0.05). Although there was no significant correlation between plasma 5-hydroxytryptamine concentrations and symptom scores, patients had worse postprandial symptomatology during diarrhea compared with controls (p<0.05). Conclusions: Platelet-poor plasma 5-hydroxytryptamine concentrations after meal ingestion differ between constipation and diarrhea periods in alternating-type irritable bowel syndrome. Postprandial symptomatology is also more prominent during diarrhea. These results suggest that differences in plasma levels of serotonin between diarrhea and constipation may underlie the pathogenesis of alternating-type irritable bowel syndrome and could be involved in some aspects of symptomatology.

Özet

Amaç: Amacımız alterne tip irritabl barsak sendromunda hem kabızlık hem de ishal dönemlerinde açlık ve tokluk sırasında trombositten fakir plazmada 5-hidroksitriptamin konsantrasyonlarını ölçmek ve bunun gastrointestinal semptomatoloji ile ilişkisini incelemek ve iki dönemdeki sonuçları birbiri ile ve kontrollerle karşılaştırmaktı. Yöntem: Dokuz tane ishal ve kabızlık semptomları alterne eden hasta ve dokuz kontrol çalışmaya alındı. Plazma 5-hidroksitriptamin düzeyleri yemekten bir saat önce açlıkta ve karbohidrattan zengin standart bir yemekten sonra 3 saat boyunca ölçüldü. Hastalara aynı ölçümler kabızlık ve ishal dönemlerinde olmak üzere 2 kez yapıldı. Serum 5-hidroksitriptamin konsantrasyonları “high-performance liquid chromatography” tekniği kullanılarak ölçüldü. Çalışma boyunca semptomlar de- ğerlendirildi. Bulgular: Hastalar, kabızlık dönemlerine göre ishal dönemlerinde özellikle postprandial 30. dakika başta olmak üzere yemek sonrası daha yüksek trombositten fakir plazmada 5-hidroksitriptamin konsantrasyonlarına sahipti (p<0.05). Açlığa göre postprandial plazma 5-hidroksitriptamin konsantrasyonlarındaki artış da kabızlık dönemleri ve kontrollerdekine göre belirgin olarak daha yüksek bulundu (p<0.05). Her ne kadar plazma 5-hidroksitriptamin konsantrasyonları ile semptom skorları arasında anlamlı bir ilişki bulunamasa da, hastaların ishal dönemlerinde postprandial semptomatolojileri kontrollerinkine göre daha kötü bulundu (p<0.05). Sonuç: Trombositten fakir plazmada 5-hidroksitriptamin konsantrasyonları alterne tip irritabl barsak sendromunun kabızlık ve ishal dönemlerinde değişmektedir. Postprandial semptomatoloji de ishal döneminde daha belirgin olmaktadır. Bu sonuçlar, ishal ve kabızlık sırasında seratoninin plazma düzeylerindeki bu değişiklikler alterne tip irritabl barsak sendromunun patogenezinde yer alabildiğini düşündürmektedir. Ayrıca serum seviyesindeki seratonin değişmeleri semptomatolojinin bazı yönlerini de açıklayabilir.

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Cite This Article

ŞEN, F., PINARBAŞI, B., İŞSEVER, H., AKYÜZ, F., MUNGAN, Z., KAYMAKOĞLU, S. (2011). Alterne tip irritabl barsak sendromlu hastaların ishal ve kabızlık dönemlerinde yemek sonrası trombositten fakir plazmada 5-hidroksitriptamin konsantrasyonları. Turkish Journal of Gastroenterology, Cilt: 22 - Sayı: 3, 270–278. https://ajindex.com/articles/411349

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