Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\26501116
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 EBioMedicine
2015 ; 2
(9
): 1186-92
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Natural infection of Plasmodium brasilianum in humans: Man and monkey share
quartan malaria parasites in the Venezuelan Amazon
#MMPMID26501116
Lalremruata A
; Magris M
; Vivas-Martínez S
; Koehler M
; Esen M
; Kempaiah P
; Jeyaraj S
; Perkins DJ
; Mordmüller B
; Metzger WG
EBioMedicine
2015[Sep]; 2
(9
): 1186-92
PMID26501116
show ga
BACKGROUND: The quartan malaria parasite Plasmodium malariae is the widest spread
and best adapted human malaria parasite. The simian Plasmodium brasilianum causes
quartan fever in New World monkeys and resembles P. malariae morphologically.
Since the genetics of the two parasites are nearly identical, differing only in a
range of mutations expected within a species, it has long been speculated that
the two are the same. However, no naturally acquired infection with parasites
termed as P. brasilianum has been found in humans until now. METHODS: We
investigated malaria cases from remote Yanomami indigenous communities of the
Venezuelan Amazon and analyzed the genes coding for the circumsporozoite protein
(CSP) and the small subunit of ribosomes (18S) by species-specific PCR and
capillary based-DNA sequencing. FINDINGS: Based on 18S rRNA gene sequencing, we
identified 12 patients harboring malaria parasites which were 100% identical with
P. brasilianum isolated from the monkey, Alouatta seniculus. Translated amino
acid sequences of the CS protein gene showed identical immunodominant repeat
units between quartan malaria parasites isolated from both humans and monkeys.
INTERPRETATION: This study reports, for the first time, naturally acquired
infections in humans with parasites termed as P. brasilianum. We conclude that
quartan malaria parasites are easily exchanged between humans and monkeys in
Latin America. We hypothesize a lack of host specificity in mammalian hosts and
consider quartan malaria to be a true anthropozoonosis. Since the name P.
brasilianum suggests a malaria species distinct from P. malariae, we propose that
P. brasilianum should have a nomenclatorial revision in case further research
confirms our findings. The expansive reservoir of mammalian hosts discriminates
quartan malaria from other Plasmodium spp. and requires particular research
efforts.