Endolimax is a genus of amoebozoa [1] that are found in the intestines of various animals, including the species E. nana found in humans. Originally thought to be non-pathogenic, studies suggest it can cause intermittent or chronic diarrhea .

Entamoeba coli, E. hartmanni, E. polecki, Endolimax nana, and Iodamoeba buetschlii are generally considered nonpathogenic and reside in the lumen of the large intestine in the human host.

2024年6月17日 · Nonpathogenic intestinal protozoa are single-celled parasites commonly found in the intestinal tract but never associated with illness. They do not harm the body, even in people with weak immune systems. Symptomatic people who are found to have these protozoa in their stool should be examined for other causes of their symptoms.

Of the so-called nonpathogenic intestinal protozoa, Endolimax nana belongs to the ones least well described. Most data on E. nana have emerged from general surveys of intestinal parasites in selected cohorts and mostly in the absence of any particular focus on Endolimax.

微小内蜓阿米巴是寄生于 肠腔 内的小型 阿米巴，该虫一般不致病，重度感染或特殊情况下，也可引起急性或 慢性腹泻。 有滋养体和包囊期，外形大小很象 哈门氏内阿米巴。 滋养体直径6～12µm ，核有一粗大明显核仁而无核周染色质粒。 胞质量少，颗粒状并含空泡，核膜与核仁之间有清晰的空间和相连的核丝。 包囊小，卵圆形，无拟染色体，偶见形状不一的糖原泡，成熟包囊含四核，直径为5～10µm ，一般认为无致病性。 该虫体积比哈门氏内阿米巴小，且有粗大核仁。 胞核与 …

新序列证实E. nana在 Archamoebae 内形成一个离散的进化枝，并且与Endolimax piscium和Iodamoeba相关。 然而，我们发现了E. nana内的大量序列差异和两个不同进化枝的证据，我们建议将其命名为E. nana核糖体谱系 1 和E. nana核糖体谱系 2。

2023年6月1日 · Endolimax nana shows elongated tubular structures made up of ribosome-like particles, a unique feature among intestinal amebae. The cyst is usually made up of four nuclei. However, it is possible that Endolimax nana might produce super nucleate cysts.

Endolimax nana (Fig. 4-1) is the smallest of the intestine-dwelling amoebae infecting humans, its trophozoite averaging only 8 μm in diameter (range, 6-15 μm). The trophozoite lives in the host’s colon and is generally considered to be nonpathogenic.

Endolimax nana is a nonpathogenic ameba. Location in the Host. Endolimax nana is found in the lumen the colon and cecum. Geographic Distribution. Endolimax nana is found worldwide. Life Cycle Image courtesy of CDC Morphology & Diagnosis. Endolimax nana is detected in ova & parasite examinations. Endolimax nana is a small ameba. Trophozoites are ...

2022年8月21日 · El Endolimax nana es una ameba intestinal que parásita exclusivamente el intestino de los humanos. Sin embargo, es un parásito comensal no patógeno, lo que quiere decir que no le ocasiona daño considerable al ser humano.