Elevated fecal and serum calprotectin in COVID-19 are not consistent with gastrointestinal symptoms


Posted: 2021-11-10 20:00:00
Intestinal epithelial cell damage caused by SARS-CoV-2 infection was thought to be associated with gastrointestinal symptoms and decreased fecal consistency. The association of the gastrointestinal symptoms with the COVID-19-mediated inflammatory response triggered by the gastrointestinal immune system was investigated in this paper. Intestinal inflammation marker fecal calprotectin along with serum calprotectin and other inflammatory markers were measured in COVID-19 cases with and without GI manifestations as well as healthy individuals. Analyses were performed to compare COVID-19 patient subgroups and healthy controls and examine the relationship between fecal and serum calprotectin levels with gastrointestinal symptoms and disease severity. COVID-19 patients (n = 70) were found to have markedly elevated median levels of fecal (124.3 vs. 25.0 µg/g; P < 0/0001) and serum calprotectin (3500 vs. 1060 ng/mL; P < 0/0001) compared with uninfected controls. Fecal and serum calprotectin levels were not significantly different between COVID-19 patients who displayed GI symptoms and those who did not. Compared with other acute phase markers, both fecal and serum calprotectin were superior in identifying COVID-19 patients who progressed to severe illness. Although the progression of COVID-19 disease is marked by an elevation of fecal and serum calprotectin, gastrointestinal symptoms or diarrhea were not correlated with calprotectin increase level.

参考サイト PubMed: covid-19



バイオクイックニュース日本語版:COVID-19特集

バイオクイックニュース日本語版
9月 06, 2021 バイオアソシエイツ

COVID-19ウイルスの広範な変異種から防御する抗体を発見。変異種間で変化の少ない受容体結合ドメイン(RBD)を標的としている。

現在のCOVID-19を引き起こすウイルスは、はるか昔の2019年12月に最初に人々を病気にしたウイルスと同じではない。現在流行している亜種の多くは、元のウイルスに基づいて開発された抗体ベースの治療薬の一部に部分的に耐性を持っている。パンデミックが続くと、必然的にさらに多くの亜種が発生し、耐性の問題は大きくなる一方だ。ワシントン大学医学部(セントルイス)の研究者らは、広範囲のウイルス亜種に対して低用量で高い保護効果を示す抗体を発見した。さらに、この抗体は、ウイルスの亜種間でほとんど違いのない部分に結合するため、この…

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