出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/12/06 17:58:19」(JST)[Wiki en表示]
|Classification and external resources|
Bartonellosis is an infectious disease produced by bacteria of the genus Bartonella. Bartonella species cause diseases such as Carrión´s disease, trench fever, cat-scratch disease, bacillary angiomatosis, peliosis hepatis, chronic bacteremia, endocarditis, chronic lymphadenopathy, and neurological disorders.
- 1 Microbiology
- 2 History of discovery
- 2.1 Carrión's disease
- 2.2 CSD
- 2.3 Trench fever
- 3 Epidemiology
- 4 Pathophysiology
- 5 Clinical manifestations
- 5.1 Carrión's disease
- 5.2 Cat-scratch disease
- 5.3 Bacillary angiomatosis
- 5.4 Peliosis hepatis
- 5.5 Trench fever
- 6 Treatment
- 7 References
- 8 External links
Members of the genus Bartonella are facultative intracellular bacteria, alpha 2 subgroup Proteobacteria. The genus comprises:
|Bartonella bacilliformis||human||Carrion´s disease/verruga Peruana|
|Bartonella quintana||human||Trench fever, bacteremia, bacillary angiomatosis, endocarditis|
|Bartonella henselae||cats||Cat-scratch disease, bacillary angiomatosis, bacteremia, endocarditis|
|Bartonella vinsoni||dogs||Endocarditis], bacteremia|
|Bartonella rochalimae||human||Carrion´s disease-like syndrome|
History of discovery
The disease was named after medical student Daniel Alcides Carrión from Cerro de Pasco, Peru. Carrión described the disease after being inoculated at his request with the pus of a skin lesion from patient Carmen Paredes in 1885 by Doctor Evaristo M. Chávez, a close friend and coworker in Dos de Mayo National Hospital. Carrión developed the disease three weeks after the inoculation and kept a meticulous record of clinical symptoms and signs until the disease rendered him incapable of the task and he died at age 28 several weeks later—October 5, 1885. Carrión proved that Oroya fever and verruga Peruana were two stages of the same disease, and not two different diseases as was thought at the time. Subsequently, 23 subspecies of Bartonella were discovered. His work did not result in a cure immediately, but his research started the process. Peru has named October 5 as "Peruvian Medicine Day" in his honor.
Peruvian microbiologist Alberto Barton discovered the causative bacterium in 1905, but his results were not published until 1909. Barton originally identified them as "endoglobular" structures, bacteria living inside red blood cells. Until 1993, the Bartonella genus contained only one species; 23 are now identified species, all of them within the family Bartonellaceae.
In 1988, English et al.  isolated and cultured a bacterium that was named Afipia felis in 1992 after the team at the Armed Forces Institute of Pathology that discovered it. This agent was considered the etiologic agent of Cat-scratch Disease (CSD) but further studies failed to support this conclusion. Serologic studies associated CSD with Bartonella henselae, reported in 1992. In 1993, Dolan  isolated Rochalimae henselae (now called Bartonella henselae) from lymph nodes of patients with CSD.
Bartonella spp. are commonly treated with antibiotics including azithromycin, based on a single small randomized clinical trial. Treatment may take up to one year to completely eliminate the disease. CSD often resolves spontaneously without treatment.
Detailed descriptions of the disease were reported in soldiers during the First World War. It is also known as five-day fever, quintan fever, Wolhinie fever, and urban trench fever, because it occurs in homeless people and alcoholics .
Carrión's disease, or Oroya fever, or Peruvian wart is a rare infectious disease found only in Peru, Ecuador, and Colombia. It is endemic in some areas of Peru, is caused by infection with the bacterium Bartonella bacilliformis, and transmitted by sandflies of genus Lutzomyia.
Cat scratch disease occurs worldwide. Cats are the main reservoir of Bartonella henselae (etiologic agent), and the bacterium is transmitted to cats by the cat flea Ctenocephalides felis. Infection in cats is very common with a prevalence estimated between 40-60%, younger cats being more commonly infective. Cats usually become immune to the infection, while dogs may be very symptomatic. Humans may also acquire it through flea or tick bites from infected dogs, cats, coyotes, and foxes.
Trench fever, produced by Bartonella quintana infection, is transmitted by the human body louse Pediculus humanus corporis. Humans are the only known reservoir. Thorough washing of clothing may help to interrupt the transmission of infection.
A possible role for ticks in transmission of Bartonella species remains to be elucidated; in November 2011, Bartonella rochalimae, B. quintana, and B. elizabethae DNA was first reported in Rhipicephalus sanguineus and Dermacentor nitens ticks in Peru.
In mammals, each Bartonella species is highly adapted to its reservoir host as the result of intracellular parasitism and can persist in the bloodstream of the host. Intraerythrocytic parasitism is only observed in the acute phase of Carrión´s disease. Bartonella species also have a tropism for endothelial cells, observed in the chronic phase of Carrión´s disease (also known as verruga Peruana) and bacillary angiomatosis. Pathological response can vary with the immune status of the host. Infection with B. henselae can result in a focal suppurative reaction (CSD in immunocompetent patients), a multifocal angioproliferative response (bacillary angiomatosis in immunocompromised patients), endocarditis, or meningitis.
Patients can develop two clinical phases: an acute septic phase and a chronic eruptive phase associated with skin lesions. In the acute phase (also known as Oroya fever or fiebre de la Oroya), B. bacilliformis infection is a sudden, potentially life-threatening infection associated with high fever and decreased levels of circulating red blood cells (i.e., hemolytic anemia)and transient immunosuppression. B. bacilliformis is considered the most deadly species to date, with a death rate of up to 90% during the acute phase, which typically lasts two to four weeks. Peripheral blood smears show anisomacrocytosis with many bacilli adherent to red blood cells. Thrombocytopenia is also seen and can be very severe. Neurologic manifestations (neurobartonellosis) are altered mental status, agitation, or even coma, ataxia, spinal meningitis, or paralysis. It is seen in 20% of patients with acute infection, in which the prognosis is very guarded with an about 50% mortality. The most feared complication is overwhelming infection mainly by Enterobacteriaceae, particularly Salmonella (both S. typhi and S. non-typhi, as well as reactivation of toxoplasmosis and other opportunistic infections .
The chronic manifestation consists of a benign skin eruption with raised, reddish-purple nodules (angiomatous tumours). The bacterium can be seen microscopically, if a skin biopsy is silver stained (the Warthin–Starry method).
Cat-scratch disease is due to an infection by B. henselae and manifests as gradual regional lymph nodes enlargement (axilla, groin, neck) which may last 2–3 months or longer and a distal scratch and/or red-brown skin papule (not always seen at the time of the disease). The enlarged lymph node is painful and tender. The infection is self-limited. The lymph nodes may suppurate, and most patients can remain afebrile or asymptomatic. Other presentations include fever (particularly in children), Parinaud's oculoglandular syndrome, encephalopathy, and neuroretinitis.
B. henselae can be associated with bacteremia, bacillary angiomatosis, and peliosis hepatis in HIV patients, and bacteremia and endocarditis in immunocompetent and immunocompromised patients. Symptoms may include fatigue, headaches, fever, memory loss, disorientation, insomnia, and loss of coordination. The bacteria block the normal immune response by suppressing the NF-κB apoptosis pathway. Disease progression may be accelerated if the host is subsequently infected by an immune-suppressing virus such as Epstein Barr virus.
B. henselae and B. quintana can cause bacillary angiomatosis, a vascular proliferative disease involving mainly the skin, and other organs. The disease was first described in human immunodificiency virus (HIV) patients and organ transplant recipients. Severe, progressive and disseminated disease may occur in HIV patients. Differential diagnoses include Kaposi´s sarcoma, pyogenic granuloma, hemangioma, verruga Peruana, and subcutanous tumors. Lesions can affect bone marrow, liver, spleen, or lymph nodes.
B. henselae is the etiologic agent for peliosis hepatis, which is defined as a vascular proliferation of sinusoid hepatic capillaries resulting in blood-filled spaces in the liver in HIV patients and organ transplant recipients. Peliosis hepatis can be associated with peliosis of the spleen, as well as bacillary angiomatosis of the skin in HIV patients.
Trench fever, also known as five-day fever or quintan fever, is the initial manifestation of B. quintana infection. Clinical manifestations range from asymptomatic infection to severe illness. Classical presentations include a febrile illness of acute onset, headache, dizziness, and shin pain. Chronic infection manifestations include attacks of fever and aching in some cases and persistent bacteremia in soldiers and homeless people.
Treatment of infections caused by Bartonella species include:
|Cat-scratch disease||Azithromycin + Rifampin||Unknown|
|Retinitis||Doxycycline + rifampin||unknown|
|Trench fever or chronic bacteremia by B. quintana||Doxycycline + gentamicin||unknown|
|Bacillary angiomatosis||Erythromycin or doxycycline||Erythromycin|
|Peliosis hepatis||Erythromycin or doxycycline||Erythromycin|
|Endocarditis||Doxycycline + gentamicin + rifampin or ceftriaxone + gentamicin|
|Carrión´s disease (acute phase)||Ciprofloxacin or chloramphenicol||Chloramphenicol + beta-lactam|
|Carrión´s disease (chronic phase)||Rifampin or macrolides||Rifampin or macrolides|
While some authorities recommend the use of azithromycin, it is difficult to gauge what, if any significant benefit, is afforded given the often self-limiting course in patients with intact immune function.
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- Oroya fever
- Human Bartonellosis caused by Bartonella bacilliformis
- Infection Rates of Wolbachia sp. and Bartonella sp. in Different Populations of Fleas.
- Zurita A1, Gutiérrez SG1, Cutillas C2.
- Current microbiology.Curr Microbiol.2016 Nov;73(5):704-13. doi: 10.1007/s00284-016-1119-4. Epub 2016 Aug 11.
- In the present study, a molecular detection of Bartonella sp. and Wolbachia sp. in Ctenocephalides felis (Siphonaptera: Pulicidae) isolated from Canis lupus familiaris from different geographical areas of Spain, Iran and South Africa, and in Stenoponia tripectinata tripectinata isolated from Mus mus
- PMID 27515668
- A family of genus-specific RNAs in tandem with DNA-binding proteins control expression of the badA major virulence factor gene in Bartonella henselae.
- Tu N1, Carroll RK2, Weiss A3, Shaw LN3, Nicolas G1, Thomas S1, Lima A1, Okaro U1, Anderson B4.
- MicrobiologyOpen.Microbiologyopen.2016 Oct 28. doi: 10.1002/mbo3.420. [Epub ahead of print]
- Bartonella henselae is a gram-negative zoonotic bacterium that causes infections in humans including endocarditis and bacillary angiomatosis. B. henselae has been shown to grow as large aggregates and form biofilms in vitro. The aggregative growth and the angiogenic host response requires the trime
- PMID 27790856
- Phylogenetic and geographic patterns of bartonella host shifts among bat species.
- McKee CD1, Hayman DT2, Kosoy MY3, Webb CT4.
- Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases.Infect Genet Evol.2016 Oct;44:382-94. doi: 10.1016/j.meegid.2016.07.033. Epub 2016 Jul 27.
- The influence of factors contributing to parasite diversity in individual hosts and communities are increasingly studied, but there has been less focus on the dominant processes leading to parasite diversification. Using bartonella infections in bats as a model system, we explored the influence of t
- PMID 27473781
- 臨床眼科 62(7), 1048-1052, 2008-07
- NAID 40016155299
- 山口県内の猫と犬における Bartonella henselae の血清疫学調査
- 日本獣医師会雑誌 = Journal of the Japan Veterinary Medical Association 57(4), 257-261, 2004-04-20
- NAID 10012912131
- 山口県内の猫と犬における<I>Bartonella henselae</I>の血清疫学調査
- 日本獣医師会雑誌 57(4), 257-261, 2004
- NAID 130004052364
|リンク元||「Rochalimaea infection」「Bartonella infection」「バルトネラ症」|