Schistosoma japonicum reinfection after praziquantel treatment causes anemia associated with inflammation.

Abstract:

:There is a relationship between schistosomiasis and anemia, although the magnitude and exact mechanisms involved are unclear. In a cohort of 580 Schistosoma japonicum-infected 7- to 30-year-old patients from Leyte, The Philippines, we evaluated the impact of reinfection with S. japonicum after treatment with praziquantel on the mean hemoglobin level, iron-deficiency (IDA) and non-iron-deficiency anemia (NIDA), and inflammatory markers. All participants were treated at baseline and followed up every 3 months for a total of 18 months. At each follow-up, participants provided stools to quantify reinfection and venous blood samples for hemograms and measures of iron status and inflammation. After 18 months, reinfection with S. japonicum was associated with a lower mean hemoglobin level (-0.39 g/dl; 95% confidence interval [95% CI], -0.63 to -0.16) and 1.70 (95% CI, 1.10 to 2.61) times higher odds of all-cause anemia than those without reinfection. Reinfection was associated with IDA for high reinfection intensities only. Conversely, reinfection was associated with NIDA for all infection intensities. Reinfection was associated with serum interleukin-6 responses (P<0.01), and these responses were associated with NIDA (P=0.019) but not with IDA (P=0.29). Our results provide strong evidence for the causal relationship between S. japonicum infection and anemia. Rapidly reinfected individuals did not have the positive treatment effect on hemoglobin seen in nonreinfected individuals. The principle mechanism involved in S. japonicum-associated anemia is that of proinflammatory cytokine-mediated anemia, with iron deficiency playing a role in high-intensity infections. Based on the proposed mechanism, anemia is unlikely to be ameliorated by iron therapy alone.

journal_name

Infect Immun

journal_title

Infection and immunity

authors

Leenstra T,Coutinho HM,Acosta LP,Langdon GC,Su L,Olveda RM,McGarvey ST,Kurtis JD,Friedman JF

doi

10.1128/IAI.00757-06

subject

Has Abstract

pub_date

2006-11-01 00:00:00

pages

6398-407

issue

11

eissn

0019-9567

issn

1098-5522

pii

IAI.00757-06

journal_volume

74

pub_type

杂志文章
  • PmpG303-311, a protective vaccine epitope that elicits persistent cellular immune responses in Chlamydia muridarum-immune mice.

    abstract::Urogenital Chlamydia serovars replicating in reproductive epithelium pose a unique challenge to host immunity and vaccine development. Previous studies have shown that CD4 T cells are necessary and sufficient to clear primary Chlamydia muridarum genital tract infections in the mouse model, making a protective CD4 T ce...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.06339-11

    authors: Johnson RM,Yu H,Kerr MS,Slaven JE,Karunakaran KP,Brunham RC

    更新日期:2012-06-01 00:00:00

  • Unique and common protective epitopes among different serotypes of group A streptococcal M proteins defined with hybridoma antibodies.

    abstract::A set of four monoclonal antibodies was produced against a highly purified pepsin extract of type 5 streptococcal M protein. Three of the four antibodies cross-reacted with purified M proteins from heterologous serotypes and opsonized the respective heterologous organisms. Our studies suggest that monoclonal antibodie...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.46.1.267-269.1984

    authors: Dale JB,Beachey EH

    更新日期:1984-10-01 00:00:00

  • Chromosomal synthesis of staphylococcal exfoliative toxin.

    abstract::Tox-+ staphylococcal strains, as opposed to Tox-minus strains, produce epidermal exfoliation within 18 h after direct subcutaneous or intraperitoneal injection into newborn mice. The extracellular product responsible for exfoliation is termed exfoliative toxin (ET). When culture supernatant fluid from the plasmid-cure...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.12.1.193-197.1975

    authors: Keyhani M,Rogolsky M,Wiley BB,Glasgow LA

    更新日期:1975-07-01 00:00:00

  • Variation in chemical properties and antigenic determinants among type II heat-labile enterotoxins of Escherichia coli.

    abstract::Type II heat-labile enterotoxin (LT-II) from Escherichia coli 41 was purified and compared with prototype LT-II encoded by genes from E. coli SA53. Both toxins were oligomeric proteins consisting of polypeptides A (Mr, 28,000) and B (Mr, 11,800). The A polypeptides were cleaved by trypsin into fragments A1 (Mr, 21,000...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.54.2.529-536.1986

    authors: Guth BE,Twiddy EM,Trabulsi LR,Holmes RK

    更新日期:1986-11-01 00:00:00

  • Delineation of a segment of adsorbed salivary acidic proline-rich proteins which promotes adhesion of Streptococcus gordonii to apatitic surfaces.

    abstract::Cells of several strains of Streptococcus gordonii attached in much higher numbers to experimental pellicles formed from samples of submandibular or parotid saliva on hydroxyapatite (HA) beads than to buffer controls. The nature of the salivary components responsible were investigated by preparing experimental pellicl...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.59.9.2948-2954.1991

    authors: Gibbons RJ,Hay DI,Schlesinger DH

    更新日期:1991-09-01 00:00:00

  • Adhesion of glucosyltransferase phase variants to Streptococcus gordonii bacterium-glucan substrata may involve lipoteichoic acid.

    abstract::Growing Streptococcus gordonii Spp+ phase variants, which have normal levels of glucosyltransferase (GTF) activity, use sucrose to promote their accumulation on surfaces by forming a cohesive bacterium-insoluble glucan polymer mass (BPM). Spp- phase variants, which have lower levels of GTF activity, do not form BPMs a...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.60.10.4301-4308.1992

    authors: Vickerman MM,Jones GW

    更新日期:1992-10-01 00:00:00

  • Borrelia burgdorferi infection and immunity in mice deficient in the fifth component of complement.

    abstract::When immunocompetent mice are inoculated with Borrelia burgdorferi, they develop acute arthritis and carditis that undergo spontaneous regression despite the persistence of infection. Specific T- and/or B-cell immunity appears to be necessary for resolution of disease manifestations. Humoral immune responses to B. bur...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.61.5.2104-2107.1993

    authors: Bockenstedt LK,Barthold S,Deponte K,Marcantonio N,Kantor FS

    更新日期:1993-05-01 00:00:00

  • Effects of the composition of peritoneal dialysis fluid on chemiluminescence, phagocytosis, and bactericidal activity in vitro.

    abstract::Commercial fluid used for peritoneal lavage in peritonitis and in peritoneal dialysis suppressed the activity of peripheral blood leukocytes as measured by chemiluminescence, phagocytosis, and bacterial killing. Suppression was found to be due to the low pH and high osmolality of the fluid. The pH was adjusted to noni...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.33.1.130-135.1981

    authors: Duwe AK,Vas SI,Weatherhead JW

    更新日期:1981-07-01 00:00:00

  • Flagellar phase variation of Salmonella enterica serovar Typhimurium contributes to virulence in the murine typhoid infection model but does not influence Salmonella-induced enteropathogenesis.

    abstract::Although Salmonella enterica serovar Typhimurium can undergo phase variation to alternately express two different types of flagellin subunit proteins, FljB or FliC, no biological function for this phenomenon has been described. In this investigation, we constructed phase-locked derivatives of S. enterica serovar Typhi...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.69.5.3021-3030.2001

    authors: Ikeda JS,Schmitt CK,Darnell SC,Watson PR,Bispham J,Wallis TS,Weinstein DL,Metcalf ES,Adams P,O'Connor CD,O'Brien AD

    更新日期:2001-05-01 00:00:00

  • Endoplasmic Reticulum Tubule Protein Reticulon 4 Associates with the Legionella pneumophila Vacuole and with Translocated Substrate Ceg9.

    abstract::Intracellular growth of Legionella pneumophila occurs in a replication vacuole constructed by host proteins that regulate vesicular traffic from the host endoplasmic reticulum (ER). This process is promoted by a combination of approximately 300 Icm/Dot translocated substrates (IDTS). One of these proteins, Ceg9, was p...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.00507-15

    authors: Haenssler E,Ramabhadran V,Murphy CS,Heidtman MI,Isberg RR

    更新日期:2015-09-01 00:00:00

  • Primary murine Chlamydia trachomatis pneumonia in B-cell-deficient mice.

    abstract::Mice were rendered deficient in B-cell activity by treatment with anti-mu antibody from birth. These animals were then infected intranasally with murine Chlamydia trachomatis (murine pneumonitis agent [MoPn]). They produced neither local nor systemic antibody to MoPn but had intact delayed-type hypersensitivity to MoP...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.55.10.2387-2390.1987

    authors: Williams DM,Grubbs B,Schachter J

    更新日期:1987-10-01 00:00:00

  • Immune interferon induced by phytohemagglutinin in nude mouse spleen cells.

    abstract::Phytohemagglutinin is able to trigger interferon synthesis in spleen cell cultures from nude (nu/nu) mice as effectively as in splenic cell cultures from haired, control (nu/+), thymus-bearing mice. A minor theta-bearing cell population present in the spleen of nude mice appears essential to phytohemagglutinin interfe...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.21.3.966-972.1978

    authors: Wietzerbin J,Stefanos S,Falcoff R,Lucero M,Catinot L,Falcoff E

    更新日期:1978-09-01 00:00:00

  • Immunization against chlamydial genital infection in guinea pigs with UV-inactivated and viable chlamydiae administered by different routes.

    abstract::Female guinea pigs were immunized with viable or UV light-inactivated chlamydiae (agent of guinea pig inclusion conjunctivitis), belonging to the species Chlamydia psittaci, by intravenous, subcutaneous, oral, or ocular routes. All animals were then inoculated vaginally with viable chlamydiae to determine the extent o...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.58.8.2599-2605.1990

    authors: Rank RG,Batteiger BE,Soderberg LS

    更新日期:1990-08-01 00:00:00

  • Role of Nramp1 deletion in Chlamydia infection in mice.

    abstract::Elicited macrophages from 129sv mice with a functional deletion of the natural-resistance-associated macrophage protein 1 gene (Nramp1) were shown to be as susceptible as wild-type mice to infection with the Chlamydia trachomatis mouse pneumonitis and L3 serovars and to Chlamydia pneumoniae. Furthermore, the two group...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/iai.68.8.4831-4833.2000

    authors: Pal S,Peterson EM,de La Maza LM

    更新日期:2000-08-01 00:00:00

  • Candida albicans releases soluble factors that potentiate cytokine production by human cells through a protease-activated receptor 1- and 2-independent pathway.

    abstract::The innate immune system recognizes pathogen-associated molecular patterns (PAMPs) through pattern recognition receptors (PRR) and transduces downstream signaling to activate the host defense. Here we report that in addition to direct PAMP-PRR interactions, live Candida albicans cells can release soluble factors to ac...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.01041-09

    authors: Cheng SC,Chai LY,Joosten LA,Vecchiarelli A,Hube B,Van Der Meer JW,Kullberg BJ,Netea MG

    更新日期:2010-01-01 00:00:00

  • Trypanosoma rhodesiense infection in B-cell-deficient mice.

    abstract::B-cell-deficient C57B1/6J mice (suppressed from birth with goat anti-mu) and controls (treated from birth with normal goat serum) were infected with Trypanosoma rhodesiense. There was a significant (P less than 0.01) decrease in duration of survival of the mu-suppressed mice compared with that of controls. Whereas bot...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.18.2.434-438.1977

    authors: Campbell GH,Esser KM,Weinbaum FI

    更新日期:1977-11-01 00:00:00

  • Leukocytes in a Plasmodium falciparum-infected blood meal reduce transmission of malaria to Anopheles mosquitoes.

    abstract::Mosquitoes are infected with Plasmodium falciparum by taking a blood meal from a gametocyte carrier. Since a mosquito takes a volume of 1 to 2 microl, a blood meal may contain 1 x 10(4) to 3 x 10(4) leukocytes (WBC). The majority of WBC are composed of neutrophils which may phagocytose and kill developing gametes insi...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.65.9.3834-3837.1997

    authors: Lensen AH,Bolmer-Van de Vegte M,van Gemert GJ,Eling WM,Sauerwein RW

    更新日期:1997-09-01 00:00:00

  • Enhancing the protective efficacy of Mycobacterium bovis BCG vaccination against tuberculosis by boosting with the Mycobacterium tuberculosis major secretory protein.

    abstract::Tuberculosis continues to ravage humanity, killing 2 million people yearly. Most cases occur in areas of the world to which the disease is endemic, where almost everyone is vaccinated early in life with Mycobacterium bovis BCG, the currently available vaccine against tuberculosis. Thus, while more-potent vaccines are ...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.73.8.4676-4683.2005

    authors: Horwitz MA,Harth G,Dillon BJ,Maslesa-Galic S

    更新日期:2005-08-01 00:00:00

  • Mucosal adjuvant properties of mutant LT-IIa and LT-IIb enterotoxins that exhibit altered ganglioside-binding activities.

    abstract::LT-IIa and LT-IIb, the type II heat-labile enterotoxins of Escherichia coli, are closely related in structure and function to cholera toxin and LT-I, the type I heat-labile enterotoxins of Vibrio cholerae and E. coli, respectively. Recent studies from our group demonstrated that LT-IIa and LT-IIb are potent systemic a...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.73.3.1330-1342.2005

    authors: Nawar HF,Arce S,Russell MW,Connell TD

    更新日期:2005-03-01 00:00:00

  • Role of capsule and suilysin in mucosal infection of complement-deficient mice with Streptococcus suis.

    abstract::Virulent Streptococcus suis serotype 2 strains are invasive extracellular bacteria causing septicemia and meningitis in piglets and humans. One objective of this study was to elucidate the function of complement in innate immune defense against S. suis. Experimental infection of wild-type (WT) and C3(-/-) mice demonst...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.00080-14

    authors: Seitz M,Beineke A,Singpiel A,Willenborg J,Dutow P,Goethe R,Valentin-Weigand P,Klos A,Baums CG

    更新日期:2014-06-01 00:00:00

  • Cryptococcus neoformans growth and protection from innate immunity are dependent on expression of a virulence-associated DEAD-box protein, Vad1.

    abstract::The fungus Cryptococcus neoformans has emerged as a major cause of meningoencephalitis worldwide. Host response to the fungus involves both innate and adaptive immunity, but fungal genes that modulate these processes are poorly understood. Previous studies demonstrated attenuated virulence of a mutant of a virulence-a...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.00821-12

    authors: Qiu J,Olszewski MA,Williamson PR

    更新日期:2013-03-01 00:00:00

  • Evidence for multiple pathologic and protective mechanisms of murine cerebral malaria.

    abstract::Murine cerebral malaria (CM) induced by Plasmodium berghei ANKA kills susceptible mice within 24 to 48 h of onset of symptoms and is characterized by the production of inflammatory cytokines in the brain. C57BL/6J mice are sensitive to lethal CM, while A/J mice are resistant. These strains of mice were immunized with ...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.66.12.5972-5979.1998

    authors: Jennings VM,Lal AA,Hunter RL

    更新日期:1998-12-01 00:00:00

  • Molecular basis for preferential protective efficacy of antibodies directed to the poorly acetylated form of staphylococcal poly-N-acetyl-beta-(1-6)-glucosamine.

    abstract::Poly-N-acetyl-glucosamine (PNAG) is a staphylococcal surface polysaccharide influencing biofilm formation that is also under investigation for its vaccine potential. Antibodies that bind to PNAG with either low (<15%) or high (>90%) levels of acetate are superior at opsonic and protective activity compared with antibo...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.00078-07

    authors: Cerca N,Jefferson KK,Maira-Litrán T,Pier DB,Kelly-Quintos C,Goldmann DA,Azeredo J,Pier GB

    更新日期:2007-07-01 00:00:00

  • Cryptic peptidoglycan and the antiphagocytic effect of the Staphylococcus aureus capsule: model for the antiphagocytic effect of bacterial cell surface polymers.

    abstract::The antiphagocytic effect of the Staphylococcus aureus capsule is known to be related to its ability to interfere with opsonization by normal human serum. In this study, evidence is presented with isolated cell surface components which indicates that the capsule hinders opsonization by masking cell wall peptidoglycan....

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.23.2.502-508.1979

    authors: Wilkinson BJ,Peterson PK,Quie PG

    更新日期:1979-02-01 00:00:00

  • Protective and immunochemical activities of monoclonal antibodies reactive with the Bacillus anthracis polypeptide capsule.

    abstract::Bacillus anthracis is surrounded by a polypeptide capsule composed of poly-gamma-d-glutamic acid (gammaDPGA). In a previous study, we reported that a monoclonal antibody (MAb F26G3) reactive with the capsular polypeptide is protective in a murine model of pulmonary anthrax. The present study examined a library of six ...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.01133-06

    authors: Kozel TR,Thorkildson P,Brandt S,Welch WH,Lovchik JA,AuCoin DP,Vilai J,Lyons CR

    更新日期:2007-01-01 00:00:00

  • Human peripheral blood CD4+ and CD8+ T cells express Th1-like cytokine mRNA and proteins following in vitro stimulation with heat-inactivated Brucella abortus.

    abstract::Defining the pattern of lymphokine production associated with Brucella abortus is critical for advancing the development of B. abortus as a vaccine carrier. In the present study we investigated the ability of heat-inactivated B. abortus or lipopolysaccharide from B. abortus to induce lymphokine production from purifie...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.63.7.2720-2728.1995

    authors: Zaitseva MB,Golding H,Betts M,Yamauchi A,Bloom ET,Butler LE,Stevan L,Golding B

    更新日期:1995-07-01 00:00:00

  • Identification of a Fusobacterium nucleatum PK1594 galactose-binding adhesin which mediates coaggregation with periopathogenic bacteria and hemagglutination.

    abstract::Attachment of Fusobacterium nucleatum to various oral surfaces is mediated by several adhesins anchored on its outer surface. Monoclonal antibodies (MAbs) were prepared and used to identify the putative galactose-binding adhesin of F. nucleatum PK1594. Four unique MAbs, 8G7, 26B9, 28G11, and 29D4, were isolated on the...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.65.12.5231-5237.1997

    authors: Shaniztki B,Hurwitz D,Smorodinsky N,Ganeshkumar N,Weiss EI

    更新日期:1997-12-01 00:00:00

  • Virulence of the Melioidosis Pathogen Burkholderia pseudomallei Requires the Oxidoreductase Membrane Protein DsbB.

    abstract::The naturally antibiotic-resistant bacterium Burkholderia pseudomallei is the causative agent of melioidosis, a disease with stubbornly high mortality and a complex, protracted treatment regimen. The worldwide incidence of melioidosis is likely grossly underreported, though it is known to be highly endemic in northern...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.00938-17

    authors: McMahon RM,Ireland PM,Sarovich DS,Petit G,Jenkins CH,Sarkar-Tyson M,Currie BJ,Martin JL

    更新日期:2018-04-23 00:00:00

  • Inhibition of small-intestinal sugar and amino acid transport by the enterotoxin of Shigella dysenteriae I.

    abstract::The enterotoxin of Shigella dysenteriae I produces fluid and electrolyte secretion in the rabbit ileum. These present studies were designed to evaluate nonelectrolyte transport in rabbit ileal mucosa exposed to Shigella enterotoxin. Both 10 mM galactose and 5 mM L-alanine absorptions were significantly impaired in ent...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.16.2.510-512.1977

    authors: Binder HJ,Whiting DS

    更新日期:1977-05-01 00:00:00

  • Identification of a novel virulence determinant with serum opacification activity in Streptococcus suis.

    abstract::Streptococcus suis serotype 2 is a porcine and human pathogen with adhesive and invasive properties. In other streptococci, large surface-associated proteins (>100 kDa) of the MSCRAMM family (microbial surface components recognizing adhesive matrix molecules) are key players in interactions with host tissue. In this s...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.00359-06

    authors: Baums CG,Kaim U,Fulde M,Ramachandran G,Goethe R,Valentin-Weigand P

    更新日期:2006-11-01 00:00:00