Malaria pigment PO - Revision history

Admin at 08:59, 21 March 2025

2025-03-21T08:59:09Z

← Older revision		Revision as of 09:59, 21 March 2025
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	File:Pig1.jpg\|link={{filepath:~~Pig1~~.jpg}}		File:Pig1.jpg\|link={{filepath:MPi1.jpg}}
	</gallery>		</gallery>

	<span style="font-size:90%>A solid and angular late trophozoite form of ''P.malariae''. Note the golden pigment in separate clumps of granules distributed over the parasite surface (arrowed).</span>		<span style="font-size:90%>'' '''Image''' A solid and angular late trophozoite form of ''P.malariae''. Note the golden pigment in separate clumps of granules distributed over the parasite surface (arrowed).''</span>


	<span style=font-size:90%>'''Description'''</span>		<span style=font-size:90%>'''Description'''</span>
	<span style="font-size:90%>During their development malarial parasites metabolise the haemoglobin within erythrocytes to support their growth. ~~For~~ infected cells at late stages of parasite development ~~the~~ red cell may have no visible haemoglobin. As part of that process the parasite must "detoxify" the iron component of the haem element. This process creates a detoxified iron containing protein "haemozoin" which is visible as pigment~~. This pigment~~ is most visible at late stages of parasite development.</span>		<span style="font-size:90%>During their development malarial parasites metabolise the haemoglobin within erythrocytes to support their growth. Evetually infected cells at late stages of parasite development red cell may have no visible haemoglobin. As part of that process the parasite must "detoxify" the iron component of the haem element. This process creates a detoxified iron containing protein "haemozoin" which is visible as pigment - as you might expect this is most visible at late stages of parasite development. When schizonts rupture to release their daughter parasites, the pigment is also released and is takn up by phagocytes.</span>


	<span style="font-size:90%>'''Species significance'''</span>		<span style="font-size:90%>'''Species significance'''</span>
	<span style="font-size:90%>Pigment may vary in colour and may be clumped, or ~~may be~~ scattered as individual small masses depending on species~~. In~~ some instances this ~~distribution of pigment may~~ help ~~identify species~~ (most obviously in the central clump seen in the "daisy head" schizonts of ''P.malariae''). Generally however, the ~~colour and distribution~~ of the pigment is less useful than other features in determining species.</span>		<span style="font-size:90%>Pigment may vary in colour and may be clumped or scattered as individual small masses depending on species; in some instances this can help (most obviously in the central clump seen in the "daisy head" schizonts of ''P.malariae''). Generally however, the form of the pigment is less useful than other features in determining species.</span>


	<span style="font-size:90%>'''Additional images'''</span>		<span style="font-size:90%>'''Additional images'''</span>
	<span style="font-size:90%>Pigment in different stages of parasite development</span>		<span style="font-size:90%>Pigment in different stages of parasite development</span>


	<gallery mode="nolines" widths="220px" heights="220px" >		<gallery mode="nolines" widths="220px" heights="220px" >
	File:Pig2.jpg\|Gametocyte ''P.malariae''\|link={{filepath:Pig2.jpg}}		File:Pig2.jpg\|<span style="font-size:90%>Gametocyte ''P.malariae''</span>\|link={{filepath:Pig2.jpg}}
	File:Pig3.jpg\|Schizont ''P.ovale''\|link={{filepath:Pig3.jpg}}		File:Pig3.jpg\|<span style="font-size:90%>Schizont ''P.ovale''</span>\|link={{filepath:Pig3.jpg}}
	File:Pig4.jpg\|Trophozoite ''P.ovale''\|link={{filepath:Pig4.jpg}}		File:Pig4.jpg\|<span style="font-size:90%>Trophozoite ''P.ovale''</span>\|link={{filepath:Pig4.jpg}}
	File:Pig5.jpg\|Gametocyte ''P.falciparum''\|link={{filepath:Pig5.jpg}}		File:Pig5.jpg\|<span style="font-size:90%>Gametocyte ''P.falciparum''</span>\|link={{filepath:Pig5.jpg}}
	</gallery>		</gallery>
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Admin at 15:34, 17 March 2025

2025-03-17T15:34:11Z

← Older revision		Revision as of 16:34, 17 March 2025
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	File:Pig5.jpg\|Gametocyte ''P.falciparum''\|link={{filepath:Pig5.jpg}}		File:Pig5.jpg\|Gametocyte ''P.falciparum''\|link={{filepath:Pig5.jpg}}
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{| class="wikitable" style="widthe:90%; border-style: solid; border-width: 4px; border-color:teal"
|colspan="1" style = "font-size:140%; color:black; background: FFFAFA"|'''Malaria Pigment''' (haemozoin)
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<gallery mode="nolines" widths="220px" heights="220px" >
File:Pig1.jpg|link={{filepath:MPi1.jpg}}
</gallery>

A solid and angular late trophozoite form of ''P.malariae''. Note the golden pigment in separate clumps of granules distributed over the parasite surface (arrowed).

'''Description'''
During their development malarial parasites metabolise the haemoglobin within erythrocytes to support their growth. For infected cells at late stages of parasite development the red cell may have no visible haemoglobin. As part of that process the parasite must "detoxify" the iron component of the haem element. This process creates a detoxified iron containing protein "haemozoin" which is visible as pigment. This pigment is most visible at late stages of parasite development.

'''Species significance'''
Pigment may vary in colour and may be clumped, or may be scattered as individual small masses depending on species. In some instances this distribution of pigment may help identify species (most obviously in the central clump seen in the "daisy head" schizonts of ''P.malariae''). Generally however, the colour and distribution of the pigment is less useful than other features in determining species.

'''Additional images'''
Pigment in different stages of parasite development

<gallery mode="nolines" widths="220px" heights="220px" >
File:Pig2.jpg|Gametocyte ''P.malariae''|link={{filepath:Pig2.jpg}}
File:Pig3.jpg|Schizont ''P.ovale''|link={{filepath:Pig3.jpg}}
File:Pig4.jpg|Trophozoite ''P.ovale''|link={{filepath:Pig4.jpg}}
File:Pig5.jpg|Gametocyte ''P.falciparum''|link={{filepath:Pig5.jpg}}
</gallery>