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Article: Immunological response in cases of complicated and uncomplicated bartonellosis during pregnancy.

Huarcaya, Erick / Maguina, Ciro / Best, Ivan / Solorzano, Nelson / Leeman, Lawrence

Revista do Instituto de Medicina Tropical de Sao Paulo

2007 Volume 49, Issue 5, Page(s) 335–337

Abstract: Bartonellosis (Carrion's Disease) during pregnancy is associated with high rates of maternal and perinatal mortality. We report the immunological patterns in two cases of human bartonellosis during pregnancy. One patient had an uncomplicated course while ...

Abstract	Bartonellosis (Carrion's Disease) during pregnancy is associated with high rates of maternal and perinatal mortality. We report the immunological patterns in two cases of human bartonellosis during pregnancy. One patient had an uncomplicated course while the second patient developed life threatening anasarca and cardiac tamponade. The patient with a complicated course had a Th1 response with a higher elevation of IL-10. This elevation has been associated with poor outcome pregnancies during bacterial infections.
MeSH term(s)	Acute Disease ; Adult ; Bartonella Infections/immunology ; CD4-CD8 Ratio ; Cytokines/immunology ; Female ; Humans ; Pregnancy ; Pregnancy Complications, Infectious/immunology ; Pregnancy Complications, Infectious/microbiology
Chemical Substances	Cytokines
Language	English
Publishing date	2007-10-30
Publishing country	Brazil
Document type	Case Reports ; Journal Article
ZDB-ID	128928-7
ISSN	1678-9946 ; 0036-4665
ISSN (online)	1678-9946
ISSN	0036-4665
DOI	10.1590/s0036-46652007000500012
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Article: Bartonelosis (Carrion's Disease) in the pediatric population of Peru: an overview and update.

Huarcaya, Erick / Maguiña, Ciro / Torres, Rita / Rupay, Joan / Fuentes, Luis

The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases

2005 Volume 8, Issue 5, Page(s) 331–339

Abstract: Bartonellosis, or Carrion's Disease, is an endemic and reemerging disease in Peru and Ecuador. Carrion's Disease constitutes a health problem in Peru because its epidemiology has been changing, and it is affecting new areas between the highland and the ... ...

Abstract	Bartonellosis, or Carrion's Disease, is an endemic and reemerging disease in Peru and Ecuador. Carrion's Disease constitutes a health problem in Peru because its epidemiology has been changing, and it is affecting new areas between the highland and the jungle. During the latest outbreaks, and previously in endemic areas, the pediatric population has been the most commonly affected. In the pediatric population, the acute phase symptoms are fever, anorexia, malaise, nausea and/or vomiting. The main signs are pallor, hepatomegaly, lymphadenopathies, cardiac murmur, and jaundice. Arthralgias and weight loss have also commonly been described. The morbidity and mortality of the acute phase is variable, and it is due mainly to superimposed infections or associated respiratory, cardiovascular, neurological or gastrointestinal complications. The eruptive phase, also known as Peruvian Wart, is characterized by eruptive nodes (which commonly bleed) and arthralgias. The mortality of the eruptive phase is currently extremely low. The diagnosis is still based on blood culture and direct observation of the bacilli in a blood smear. In the chronic phase, the diagnosis is based on biopsy or serologic assays. There are nationally standardized treatments for the acute phase, which consist of ciprofloxacin, and alternatively chloramphenicol plus penicillin G. However, most of the treatments are based on evidence from reported cases. During the eruptive phase the recommended treatment is rifampin, and alternatively, azithromycin or erythromycin.
MeSH term(s)	Bartonella Infections/diagnosis ; Bartonella Infections/drug therapy ; Bartonella Infections/epidemiology ; Child ; Endemic Diseases ; Female ; Humans ; Male ; Peru/epidemiology
Language	English
Publishing date	2005-03-17
Publishing country	Brazil
Document type	Journal Article ; Review
ZDB-ID	2041400-6
ISSN	1678-4391 ; 1413-8670
ISSN (online)	1678-4391
ISSN	1413-8670
DOI	10.1590/s1413-86702004000500001
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Article ; Online: Immunological response in cases of complicated and uncomplicated bartonellosis during pregnancy Respuesta inmunologica en casos de bartonelosis con y sin complicaciones durante el embarazo

Erick Huarcaya / Ciro Maguina / Ivan Best / Nelson Solorzano / Lawrence Leeman

Revista do Instituto de Medicina Tropical de São Paulo, Vol 49, Iss 5, Pp 335-

2007 Volume 337

Abstract	Bartonellosis (Carrion's Disease) during pregnancy is associated with high rates of maternal and perinatal mortality. We report the immunological patterns in two cases of human bartonellosis during pregnancy. One patient had an uncomplicated course while the second patient developed life threatening anasarca and cardiac tamponade. The patient with a complicated course had a Th1 response with a higher elevation of IL-10. This elevation has been associated with poor outcome pregnancies during bacterial infections. Bartonelosis (Enfermedad de Carrión) durante el embarazo esta asociado a una alta tasa de mortalidad maternal y perinatal. Reportamos el perfil inmunológico de dos casos de Bartonelosis humana en el embarazo. Una paciente tuvo un curso sin complicaciones, mientras la segunda presento complicaciones severas de anasarca y tamponamiento cardiaco. La paciente con curso complicado tuvo un patrón de repuesta Th1, con una elevación de IL-10, que se ha asociado a mal pronóstico en infecciones durante embarazo.
Keywords	Carrion's Disease ; Pregnancy ; Immunology ; Medicine (General) ; R5-920 ; Medicine ; R ; DOAJ:Medicine (General) ; DOAJ:Health Sciences
Language	English
Publishing date	2007-10-01T00:00:00Z
Publisher	Instituto de Medicina Tropical
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Influencia de factores climáticos sobre las enfermedades infecciosas

Erick Huarcaya Castilla / Fiorella Rossi Leyva / Alejandro Llanos-Cuentas

Revista Médica Herediana, Vol 15, Iss 4, Pp 218-

2004 Volume 224

Abstract: Several epidemiological evidence have been correlated with the effect of environmental factors over infectious diseases. Since the El Niño phenomenon in 1973, this event has been incriminated in the onset or trigger of epidemic changes and outbreaks. El ... ...

Abstract	Several epidemiological evidence have been correlated with the effect of environmental factors over infectious diseases. Since the El Niño phenomenon in 1973, this event has been incriminated in the onset or trigger of epidemic changes and outbreaks. El Niño, which is responsible for the Ecuatorial Pacific Ocean water warming, produce a global effect, and as a consequence atmospheric humidity and environmental temperature are higher than usual. Currently, there are evidence that those changes have a direct effect on the biological life cycle of infectious diseases vectors and some microorganisms with a correlation in the epidemiology of those diseases. Recently, the molecular biology and the mathematical model analysis have been improving our understood about biological explanations, allowing the opportunity to predict outbreaks, risky areas, or epidemiological changes. We review the current evidence that may affect infectious diseases, as Malaria, Leishmaniasis, Bartonellosis, Cholera and others. (Rev Med Hered 2004;15:218-224).
Keywords	Infectious Diseases ; climatic factors ; El Niño phenomenon ; Medicine ; R
Subject code	630
Language	Spanish
Publishing date	2004-10-01T00:00:00Z
Publisher	Universidad Peruana Cayetano Heredia
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Bartonelosis (Carrion's Disease) in the pediatric population of Peru

Erick Huarcaya / Ciro Maguiña / Rita Torres / Joan Rupay / Luis Fuentes

Brazilian Journal of Infectious Diseases, Vol 8, Iss 5, Pp 331-

an overview and update

2004 Volume 339

Abstract	Bartonellosis, or Carrion's Disease, is an endemic and reemerging disease in Peru and Ecuador. Carrion's Disease constitutes a health problem in Peru because its epidemiology has been changing, and it is affecting new areas between the highland and the jungle. During the latest outbreaks, and previously in endemic areas, the pediatric population has been the most commonly affected. In the pediatric population, the acute phase symptoms are fever, anorexia, malaise, nausea and/or vomiting. The main signs are pallor, hepatomegaly, lymphadenopathies, cardiac murmur, and jaundice. Arthralgias and weight loss have also commonly been described. The morbidity and mortality of the acute phase is variable, and it is due mainly to superimposed infections or associated respiratory, cardiovascular, neurological or gastrointestinal complications. The eruptive phase, also known as Peruvian Wart, is characterized by eruptive nodes (which commonly bleed) and arthralgias. The mortality of the eruptive phase is currently extremely low. The diagnosis is still based on blood culture and direct observation of the bacilli in a blood smear. In the chronic phase, the diagnosis is based on biopsy or serologic assays. There are nationally standardized treatments for the acute phase, which consist of ciprofloxacin, and alternatively chloramphenicol plus penicillin G. However, most of the treatments are based on evidence from reported cases. During the eruptive phase the recommended treatment is rifampin, and alternatively, azithromycin or erythromycin.
Keywords	Bartonellosis ; Carrion's disease ; Infectious and parasitic diseases ; RC109-216 ; Internal medicine ; RC31-1245 ; Medicine ; R ; DOAJ:Internal medicine ; DOAJ:Medicine (General) ; DOAJ:Health Sciences
Subject code	610
Language	English
Publishing date	2004-10-01T00:00:00Z
Publisher	Brazilian Society of Infectious Diseases
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Cytokines and T-Lymphocute count in patients in the acute and chronic phases of Bartonella bacilliformis infection in an endemic area in peru: a pilot study.

Huarcaya, Erick / Best, Ivan / Rodriguez-Tafur, Juan / Maguiña, Ciro / Solórzano, Nelson / Menacho, Julio / Lopez De Guimaraes, Douglas / Chauca, Jose / Ventosilla, Palmira

Revista do Instituto de Medicina Tropical de Sao Paulo

2011 Volume 53, Issue 3, Page(s) 149–154

Abstract: Human Bartonellosis has an acute phase characterized by fever and hemolytic anemia, and a chronic phase with bacillary angiomatosis-like lesions. This cross-sectional pilot study evaluated the immunology patterns using pre- and post-treatment samples in ... ...

Abstract	Human Bartonellosis has an acute phase characterized by fever and hemolytic anemia, and a chronic phase with bacillary angiomatosis-like lesions. This cross-sectional pilot study evaluated the immunology patterns using pre- and post-treatment samples in patients with Human Bartonellosis. Patients between five and 60 years of age, from endemic areas in Peru, in the acute or chronic phases were included. In patients in the acute phase of Bartonellosis a state of immune peripheral tolerance should be established for persistence of the infection. Our findings were that elevation of the anti-inflammatory cytokine IL-10 and numeric abnormalities of CD4(+) and CD8(+) T-Lymphocyte counts correlated significantly with an unfavorable immune state. During the chronic phase, the elevated levels of IFN-γ and IL-4 observed in our series correlated with previous findings of endothelial invasion of B. henselae in animal models.
MeSH term(s)	Acute Disease ; Adolescent ; Adult ; Bartonella Infections/epidemiology ; Bartonella Infections/immunology ; Bartonella bacilliformis/immunology ; CD4-CD8 Ratio ; Case-Control Studies ; Child ; Child, Preschool ; Chronic Disease ; Cross-Sectional Studies ; Cytokines/blood ; Cytokines/immunology ; Female ; Humans ; Male ; Middle Aged ; Peru/epidemiology ; Pilot Projects ; T-Lymphocytes/immunology ; Young Adult
Chemical Substances	Cytokines
Language	English
Publishing date	2011-07-06
Publishing country	Brazil
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	128928-7
ISSN	1678-9946 ; 0036-4665
ISSN (online)	1678-9946
ISSN	0036-4665
DOI	10.1590/s0036-46652011000300006
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Actualización de la enfermedad de Carrión.

Ciro Maguiña Vargas / César Ugarte-Gil / Patricia Breña Chávez / Eloy Ordaya Espinoza / Palmira Ventosilla López / Erick Huarcaya Castilla / César Henriquez Camacho

Revista Médica Herediana, Vol 19, Iss 1, Pp 36-

2008 Volume 41

Keywords	Medicine ; R
Language	Spanish
Publishing date	2008-01-01T00:00:00Z
Publisher	Universidad Peruana Cayetano Heredia
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Cytokines and T-Lymphocute count in patients in the acute and chronic phases of Bartonella bacilliformis infection in an endemic area in peru

Erick Huarcaya / Ivan Best / Juan Rodriguez-Tafur / Ciro Maguiña / Nelson Solórzano / Julio Menacho / Douglas Lopez De Guimaraes / Jose Chauca / Palmira Ventosilla

Revista do Instituto de Medicina Tropical de São Paulo, Vol 53, Iss 3, Pp 149-

a pilot study

2011 Volume 154

Abstract	Human Bartonellosis has an acute phase characterized by fever and hemolytic anemia, and a chronic phase with bacillary angiomatosis-like lesions. This cross-sectional pilot study evaluated the immunology patterns using pre- and post-treatment samples in patients with Human Bartonellosis. Patients between five and 60 years of age, from endemic areas in Peru, in the acute or chronic phases were included. In patients in the acute phase of Bartonellosis a state of immune peripheral tolerance should be established for persistence of the infection. Our findings were that elevation of the anti-inflammatory cytokine IL-10 and numeric abnormalities of CD4+ and CD8+ T-Lymphocyte counts correlated significantly with an unfavorable immune state. During the chronic phase, the elevated levels of IFN-γ and IL-4 observed in our series correlated with previous findings of endothelial invasion of B. henselae in animal models.
Keywords	Carrion's Disease ; Human Bartonellosis ; Cytokines ; Immunology ; Arctic medicine. Tropical medicine ; RC955-962
Subject code	610
Language	English
Publishing date	2011-06-01T00:00:00Z
Publisher	Universidade de São Paulo
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: A prospective study of Cat-Scratch Disease in Lima-Peru.

Huarcaya, Erick / Maguiña, Ciro / Merello, Jenny / Cok, Jaime / Birtles, Richard / Infante, Berónica / Vidal, José / Tello, Afilio / Ventosilla, Palmira

Revista do Instituto de Medicina Tropical de Sao Paulo

2003 Volume 44, Issue 6, Page(s) 325–330

Abstract: Cat-Scratch Disease (CSD) is a benign lymphadenitis that may progress to severe or recurrent forms, and it is occasionally associated with morbidity. Between January of 1998 and March of 1999, forty-three suspected CSD patients were assessed in the ... ...

Abstract	Cat-Scratch Disease (CSD) is a benign lymphadenitis that may progress to severe or recurrent forms, and it is occasionally associated with morbidity. Between January of 1998 and March of 1999, forty-three suspected CSD patients were assessed in the Hospital Cayetano Heredia and the Instituto de Salud del Niño, in Lima, Peru. Twelve patients had a confirmed diagnosis, 8 of whom were women, and the mean age was 10 years old. The majority (53%) of the cases were encountered in the summer. All patients reported having had contact with cats. Fever, malaise, lymphadenopathy and skin lesions were the most frequent clinical features. Twelve patients had indirect immunofluorescence antibody test titers of between 1/50 and 1/800 for Bartonella henselae and Bartonella clarridgeiae. Two lymph node biopsies were histologically compatible with CSD. No positive blood cultures could be obtained. This is the first Peruvian prospective study able to identify B. henselae and B. clarridgeiae in pediatric patients.
MeSH term(s)	Adolescent ; Adult ; Bartonella/isolation & purification ; Bartonella henselae/isolation & purification ; Cat-Scratch Disease/blood ; Cat-Scratch Disease/diagnosis ; Child ; Child, Preschool ; Female ; Humans ; Lymph Nodes/microbiology ; Lymph Nodes/pathology ; Male ; Peru ; Prospective Studies
Language	English
Publishing date	2003-01-02
Publishing country	Brazil
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	128928-7
ISSN	1678-9946 ; 0036-4665
ISSN (online)	1678-9946
ISSN	0036-4665
DOI	10.1590/s0036-46652002000600006
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Influencia del fenómeno de El Niño en la epidemiología de la bartonelosis humana en los departamentos de Ancash y Cusco entre 1996 y 1999

Erick Huarcaya Castilla / Erick Chinga Alayo / Juan Marcos Chavez Paz / José Chauca Carhuajulca / Alejandro Llanos Cuentas / Ciro Maguiña Vargas / Paúl Pachas Chavez / Eduardo Gotuzzo Herencia

Revista Médica Herediana, Vol 15, Iss 1, Pp 4-

2004 Volume 10

Abstract: Objetivo: Determinar la influencia de factores climáticos y del fenómeno El Niño 1997 - 1998 en la epidemiología de la bartonelosis en Ancash y Cusco, Perú. Materiales y Métodos: Se desarrolló un estudio ecológico. Se obtuvo información mensual climática ...

Abstract	Objetivo: Determinar la influencia de factores climáticos y del fenómeno El Niño 1997 - 1998 en la epidemiología de la bartonelosis en Ancash y Cusco, Perú. Materiales y Métodos: Se desarrolló un estudio ecológico. Se obtuvo información mensual climática de Urubamba y Carhuaz del SENAMHI, así como reporte de casos mensuales confirmados de la OGE, entre 1996 y 1999. Resultados: En los departamentos de Ancash y Cusco los coeficientes de correlación para los parámetros ambientales locales (temperatura máxima, media y mínima mensual, y precipitación total) no fueron estadísticamente significativos, mientras que la Temperatura Superficial del Mar fue el mejor parámetro que correlacionó con la tasa de incidencia de la bartonelosis, tanto a nivel local como regional. La tasa de incidencia de bartonelosis fue estadísticamente superior durante El Niño 1997 - 1998 en Ancash y Cusco, de manera simultanea. Conclusiones: Los incrementos significativos en la tasa de incidencia de bartonelosis durante El Niño en departamentos tan distantes como Ancash y Cusco de manera simultanea, evidencian que los factores climatológicos y el fenómeno El Niño modifican la epidemiología de la Bartonelosis humana. (Rev Med Hered 2004; 15;4-10 ).
Keywords	Bartonelosis ; fenómeno de El Niño ; Ancash ; Cusco ; Medicine ; R
Language	Spanish
Publishing date	2004-01-01T00:00:00Z
Publisher	Universidad Peruana Cayetano Heredia
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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