galactomannan and Chronic-Disease

The spectrum of disease caused by Aspergillus spp. is dependent on the immune system of the host, and ranges from invasive aspergillosis (IA) to chronic pulmonary aspergillosis (CPA). Early and reliable diagnosis of Aspergillus disease is important to decrease associated morbidity and mortality. Areas covered: The following review will give an update on current diagnostic strategies for the diagnosis of IA and CPA. Expert commentary: Several new diagnostics for IA (including point-of-care tests) are now available to complement galactomannan testing. In particular, immunoPET/MRI imaging may be a promising approach for diagnosing IA in the near future. Notably, nearly all new biomarkers and tests for IA have been evaluated in the hematology setting only. Validation of biomarkers and tests is therefore needed for the increasing proportion of patients who develop IA outside the hematology setting. As an important first step, reliable definitions of IA are needed for non-hematology settings as clinical presentation and radiologic findings differ in these settings. CPA diagnosis is based on a combination of radiological findings in chest CT, mycological evidence (e.g. by the Aspergillus-specific IgG assay), exclusion of alternative diagnosis and chronicity. ([18F]FDG) PET/CT and immuno PET/MRI imaging are promising new imaging approaches.

Topics: Animals; Aspergillosis; Aspergillus; Biomarkers; Chronic Disease; Galactose; Humans; Magnetic Resonance Imaging; Mannans; Positron Emission Tomography Computed Tomography; Positron-Emission Tomography; Pulmonary Aspergillosis

Invasive aspergillosis is a major cause of mortality in allogeneic bone marrow transplant recipients and patients treated for blood malignancies. The diagnostic tools, treatments and preventive strategies, essentially developed for neutropaenic patients, have not been assessed in populations whose immune systems are considered to be competent.. Beside the standard picture of chronic Aspergillus infection, the incidence of invasive aspergillosis is increasing in non neutropaenic patients, such as those with chronic lung diseases or systemic disease treated with long-term immunosuppressive drugs and solid organ transplant recipients. This study reviews the specific features of invasive aspergillosis in non neutropaenic subjects (NNS) and discusses the value of the diagnostic tools and treatment in this population.. A better understanding of the pathophysiology and the epidemiological characteristics of invasive aspergillosis would provide a means of adapting the staging and classification of the disease for NNS.. Invasive aspergillosis is under diagnosed in NNS who may already be colonised when they receive immunosuppressive treatment; this can lead to an adverse outcome in patients who are considered to be a moderate risk population.

Topics: AIDS-Related Opportunistic Infections; Antibodies, Fungal; Antifungal Agents; Aspergillosis; Aspergillus; Chronic Disease; Fungemia; Galactose; Humans; Immunocompromised Host; Immunosuppressive Agents; Lung Diseases; Mannans; Neutropenia; Organ Transplantation; Postoperative Complications; Pulmonary Aspergillosis; Radiography; Respiratory System; Risk Factors; Wound Infection

Over the last 3 years, there has been a proliferation of legislation aimed at restricting the rights of transgender Americans, including their access to gender-affirming health care. While the health implications of not having access to gender-affirming care are well documented, there may be additional indirect harms associated with proposing this type of legislation, such as those associated with being exposed to negative messages about transgender people or having to contend with friends and family who support the legislation.. Results showed that news consumption was associated with increased rumination and physical health symptoms and that perceived support for the legislation was associated with greater rumination, depressive symptoms, physical health symptoms, and fear of disclosing one's identity. Themes from the open-ended questions further underscored that the current legislation has impacted transgender youth and young adults' access to general health care; increased experiences of discrimination and other maltreatment; and resulted in some respondents engaging in unhealthy coping responses.. Policy makers should consider these adverse consequences when responding to current, and crafting future, legislation directed at transgender Americans.. Supplementary material is available in the online version of this article at 10.1007/s11814-023-1461-8.. Hyperglycemia at admission was associated with poor outcomes in COVID-19 patients, even in those without known pre-existing diabetes. Glycemic testing should be recommended for all COVID-19 patients.. Intermittent relacorilant + nab-paclitaxel improved PFS, DOR, and OS compared with nab-paclitaxel monotherapy. On the basis of protocol-prespecified Hochberg step-up multiplicity adjustment, the primary end point did not reach statistical significance (

Topics: Acute Kidney Injury; Adult; Aged; Albumins; Alloys; Amides; Amino Acids; Animals; Antineoplastic Combined Chemotherapy Protocols; Antioxidants; Bioaccumulation; Blood Glucose; Brain; Brassica napus; Breast Neoplasms; Carcinoma, Ovarian Epithelial; Catalysis; Child; China; Chlorides; Chlorine; Chromium; Chronic Disease; Cohort Studies; Copper; Corrosion; COVID-19; Creatinine; Dermatitis; Diabetes Mellitus; Diazepam; Disease-Free Survival; DNA Repair; DNA-(Apurinic or Apyrimidinic Site) Lyase; Dyspnea; Electron Spin Resonance Spectroscopy; Environmental Monitoring; Escherichia coli; Escherichia coli Infections; Esophageal Neoplasms; Esophagogastric Junction; Estradiol; Exercise Test; Exercise Tolerance; Female; Ferric Compounds; Fishes; Food Chain; gamma-Aminobutyric Acid; Genomics; Halogenation; HEK293 Cells; Hemolysis; Heterocyclic Compounds; Hospitalization; Humans; Hydrogen Peroxide; Hyperglycemia; Introns; Iron; Kidney; Kinetics; Laboratories; Limit of Detection; Lipopolysaccharides; Liver Neoplasms; Magnesium; Male; Mammals; Materials Testing; Mercury; Metal-Organic Frameworks; Methylmercury Compounds; Mice; Microscopy, Electron, Scanning; Mifepristone; Minerals; Molecular Weight; Mutation; Nanoparticles; Neuroprotection; NF-kappa B; Nitrates; Nitrogen; NLR Family, Pyrin Domain-Containing 3 Protein; Orthopedics; Ovarian Neoplasms; Ovariectomy; Oxidation-Reduction; Oxidative Stress; Oxygen; Oxygen Consumption; Paclitaxel; Phenols; Progesterone; Prospective Studies; Proteins; Protons; Pulmonary Disease, Chronic Obstructive; Ramucirumab; Rats; Receptor, ErbB-2; Respiratory Function Tests; Retrospective Studies; Saliva; SARS-CoV-2; Seeds; Sesbania; Shock, Septic; Silicon Dioxide; Sleep; Soil; Specimen Handling; Spectroscopy, Mossbauer; Spin Labels; Staphylococcus aureus; Stomach Neoplasms; Streptococcus mutans; Thiamine; Toll-Like Receptor 2; Toll-Like Receptor 4; Trastuzumab; Tumor Microenvironment; Tumor Necrosis Factor-alpha; Ubiquitin-Protein Ligases; Water; Water Pollutants, Chemical; Water Purification; Xeroderma Pigmentosum; Zebrafish

Chronic pulmonary aspergillosis (CPA) is an underdiagnosed and misdiagnosed disease and now increasingly recognised. However, the diagnosis of CPA remains challenging. In this study, we aimed to investigate the diagnostic values of serum Aspergillus-specific IgG, IgA and IgM antibodies in patients with CPA.. The prospective study was performed at Chinese People's Liberation Army General Hospital in Beijing, from January 2017 to December 2017. Adult patients with lung lesions presented as cavity, nodule, mass, bronchiectasis or severe fibrotic destruction with at least two lobes in CT imaging were enrolled. One hundred healthy persons were also enrolled as additional controls. The serum levels of Aspergillus-specific IgG, IgA and IgM antibodies and galactomannan (GM) levels were measured simultaneously by plate ELISA kit.. A total of 202 patients were enrolled in this study, including 42 CPA patients, 60 non-CPA patients and 100 healthy persons. The most common underlying lung diseases in CPA patients were bronchiectasis (28.6%) and COPD (19.0%). The most common symptoms in the CPA patients were cough (76.2%), sputum (71.4%), and fever (45.2%); chest pain (4.8%) was infrequent. Receiver operating characteristic (ROC) curve analysis revealed that the optimal CPA diagnostic cut-off of Aspergillus-specific IgG, IgA and IgM assays and GM test were 89.3 AU/mL, 8.2 U/mL, 73.3 AU/mL and 0.5μg/L, respectively. The serum levels of Aspergillus-specific IgG and IgA in CPA patients were higher than these in non-CPA patients or healthy persons. The sensitivities and specificities of Aspergillus-specific IgG, IgA, IgM tests and GM test were 78.6 and 94.4%, 64.3 and 89.4%, 50.0 and 53.7% and 71.4 and 58.1%, respectively.. The sensitivity and specificity of serum Aspergillus-specific IgG assay are satisfactory for diagnosing CPA, while the performance of Aspergillus-specific IgA assay is moderate. Aspergillus-specific IgM assay and serum GM test have limited value for CPA diagnosis.. NCT03027089 . Registered 20 January 2017.

Topics: Adult; Aged; Antibodies, Fungal; Aspergillus; Chronic Disease; Enzyme-Linked Immunosorbent Assay; Female; Galactose; Humans; Immunoglobulin Isotypes; Male; Mannans; Middle Aged; Prospective Studies; Pulmonary Aspergillosis; ROC Curve; Sensitivity and Specificity

Studies have confirmed that real-time PCR detection of. The diagnostic criteria of this study were based on the 2015 ESCMID/ERS guidelines for CPA. Seventy-nine patients with CPA and 74 non-CPA patients were enrolled.. The sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and area under the curve (AUC) of BALF PCR in the CPA group were 87.18%, 89.80%, 87.18%, 89.80%, and 0.89 (95% CI 0.82-0.95), respectively (. The BALF PCR detection method has good diagnostic value for CPA and combining this method with BALF GM detection can improve diagnostic sensitivity and specificity.

Topics: Adult; Aged; Antigens, Bacterial; Aspergillus; Bronchoalveolar Lavage Fluid; Chronic Disease; DNA, Bacterial; Early Diagnosis; Female; Galactose; Humans; Male; Mannans; Middle Aged; Predictive Value of Tests; Prospective Studies; Pulmonary Aspergillosis; Real-Time Polymerase Chain Reaction; Sensitivity and Specificity

Chronic diseases or non-communicable diseases are a major burden worldwide due to the lack of highly efficacious treatment modalities and the serious side effects associated with the available therapies.. A novel self-emulsifying formulation of curcumin with fenugreek galactomannan hydrogel scaffold as a water-dispersible non-covalent curcumin-galactomannan molecular complex (curcumagalactomannosides, CGM) has shown better bioavailability than curcumin and can be used for the prevention and treatment of chronic diseases. However, the exact potential of this formulation has not been studied, which would pave the way for its use for the prevention and treatment of multiple chronic diseases.. The whole transcriptome analysis (RNAseq) was used to identify differentially expressed genes (DEGs) in the liver tissues of mice treated with LPS to investigate the potential of CGM on the prevention and treatment of chronic diseases. Expression analysis using DESeq2 package, GO, and pathway analysis of the differentially expressed transcripts was performed using UniProtKB and KEGG-KAAS server.. The results showed that 559 genes differentially expressed between the liver tissue of control mice and CGM treated mice (100 mg/kg b.wt. for 14 days), with adjusted p-value below 0.05, of which 318 genes were significantly upregulated and 241 were downregulated. Further analysis showed that 33 genes which were upregulated (log2FC > 8) in the disease conditions were significantly downregulated, and 32 genes which were downregulated (log2FC < -8) in the disease conditions were significantly upregulated after the treatment with CGM.. Overall, our study showed CGM has high potential in the prevention and treatment of multiple chronic diseases.

Topics: Animals; Biological Availability; Chronic Disease; Computational Biology; Curcumin; Drug Combinations; Drug Compounding; Female; Galactose; Mannans; Mice; Mice, Inbred BALB C; Sequence Analysis, RNA; Trigonella

At present, serum Aspergillus IgG and IgM antibody detection is mainly used in the diagnosis of chronic pulmonary aspergillosis (CPA), but its value in the diagnosis of invasive pulmonary aspergillosis (IPA) in non-agranulocytic patients is still unclear. IgM can be used as a marker of acute infection to help diagnose acute infection-related diseases. IgG is a marker of long-term infection and is used to assist in the diagnosis of pre-existing or chronic infection-related diseases. The aim of this study was to investigate and compare the value of serum Aspergillus IgG and IgM antibody detection in the diagnosis of IPA and CPA in non-agranulocytic patients.. Fifty-eight cases of pulmonary aspergillosis (37 IPA and 21 CPA cases), 15 cases of community-acquired bacterial pneumonia and 50 cases in the healthy control group were collected. The serum (1,3)-β-D-glucan test (G test) was performed with a chromogenic method, and the galactomannan test (GM test) and Aspergillus IgG and IgM antibody detection were performed by commercial enzyme-linked immunosorbent assay (ELISA) in all patients. The sensitivity and specificity, cut-off value and area under the curve (AUC) of Aspergillus IgG and IgM antibodies were further obtained by receiver operating characteristic (ROC) curves.. The positive rate of the G test, Aspergillus IgG antibody detection and the GM test also showed notable differences among the IPA, CPA, community-acquired bacterial pneumonia and healthy groups (P = 0.006, P <  0.001 and P = 0.217, respectively). Only the positive rate of the GM test showed a significant difference between the IPA and CPA groups (P = 0.04). ROC curves indicated that Aspergillus IgG antibody detection had a higher specificity in the IPA group than in the CPA group (0.952). The detection of Aspergillus IgG antibody can preferably distinguish IPA from community-acquired bacterial pneumonia and healthy controls (sensitivity = 0.923, specificity = 0.459, cut-off value = 134.46, AUC = 0.727). It can also distinguish CPA from community-acquired bacterial pneumonia and healthy controls (sensitivity = 0.952, specificity = 0.692, cut-off value = 75.46, AUC = 0.873).. Serum Aspergillus IgG antibody detection may have certain clinical value in the diagnosis of IPA and CPA in non-agranulocytic patients.

Topics: Aged; Antibodies, Fungal; Aspergillus; Biomarkers; Chronic Disease; Enzyme-Linked Immunosorbent Assay; Female; Galactose; Humans; Immunoglobulin G; Invasive Pulmonary Aspergillosis; Male; Mannans; Middle Aged; ROC Curve; Sensitivity and Specificity

The value of serum and bronchoalveolar lavage fluid galactomannan (BALF-GM) in diagnosing chronic pulmonary aspergillosis (CPA) remains unclear. Here, we study the diagnostic efficacy of GM in the diagnosis of CPA. We included consecutive treatment-naive subjects with CPA. For calculating the specificity of serum GM, we enrolled diseased controls (minimally symptomatic subjects previously treated for pulmonary tuberculosis, not meeting the criteria for CPA). To calculate the specificity of BALF-GM, subjects with pulmonary disorders other than CPA who underwent bronchoscopy were included. We determined the cutoff of serum and BALF-GM levels using receiver operating characteristic (ROC) curve analysis. We enrolled 243 consecutive treatment-naive subjects (53.5% males) of CPA with a mean (standard deviation) age of 43.6 (14.7) years. Forty-five (60% males; age, 46.7 [15.7] years) and 27 (59.3% males; age, 52.6 [12.8] years) subjects served as controls for serum and BALF-GM, respectively. The best cutoff value for serum and BALF-GM was 0.55 (area under the ROC curve [AUROC], 0.605; sensitivity, 38%; specificity, 87%) and 1.375 (AUROC, 0.836; sensitivity, 68%; specificity, 93%), respectively. At a cutoff value of 2.5, BALF-GM had a sensitivity and specificity of 50% and 100%, respectively. BALF-GM performs better than serum GM and may be helpful in the diagnosis of CPA in selected patients. More studies are required to confirm our findings.

Topics: Adult; Aspergillus; Bronchoalveolar Lavage Fluid; Chronic Disease; Female; Fungal Polysaccharides; Galactose; Humans; Male; Mannans; Middle Aged; Prospective Studies; Pulmonary Aspergillosis; ROC Curve; Sensitivity and Specificity; Serum

The treatment response in chronic pulmonary aspergillosis (CPA) is usually assessed based on the improvement in clinical and imaging findings. Herein, we evaluate serum Aspergillus fumigatus-specific IgG, serum galactomannan, weight change, and lung function for assessing treatment response in subjects with CPA.. We categorized treatment response as favourable (improved or stable clinical response with radiologically improved or stable disease) or unfavourable (worsening of symptoms or radiological progression) after 6 months of treatment with antifungal azoles. We measured A. fumigatus-specific IgG, serum galactomannan, weight, and lung function at baseline, 3 months, and 6 months in those with favourable and unfavourable treatment response.. One hundred and twenty-six consecutive treatment-naïve subjects (53.2% (67/126) males; mean ± SD age, 42.3 ± 14.7 years) with CPA were included. One hundred and six and 20 were classified as having favourable and unfavourable response, respectively. After 6 months of treatment, the decline in serum A. fumigatus-specific IgG (n = 119) was similar in those with favourable or unfavourable response (mean ± SD, -26.3 ± 45.5 mgA/L vs. -3.4 ± 65.6 mgA/L; p 0.20). There was no significant change in the serum galactomannan (favourable vs. unfavourable: mean ± SD, -0.11 ± 2.8 vs. -0.62 ± 2; p 0.92) or FEV1 (favourable vs. unfavourable: mean ± SD, 24 ± 250 mL vs. -62 ± 154 mL; p 0.19) after 6 months of treatment. There was significant loss of weight (mean ± SD, -2.5 ± 4.5 kg) in subjects with unfavourable response.. Serum A. fumigatus-specific IgG and serum galactomannan inconsistently decrease following treatment and may not be useful indicators for monitoring treatment response in CPA. Similarly, there is little change in pulmonary function following treatment. A gain in body weight is seen in those with favourable response.

Topics: Adult; Antibodies, Fungal; Antifungal Agents; Azoles; Body Weight; Chronic Disease; Female; Follow-Up Studies; Galactose; Humans; Immunoglobulin G; Lung; Male; Mannans; Middle Aged; Prospective Studies; Pulmonary Aspergillosis; Treatment Outcome

Aspergillus fumigatus-specific IgG is pivotal in making the diagnosis of chronic pulmonary aspergillosis (CPA). However, the cut-off value for A. fumigatus-specific IgG remains unknown. We included consecutive treatment-naïve subjects with chronic cavitary pulmonary aspergillosis (CCPA, cases). The controls were subjects with treated pulmonary tuberculosis, who had residual radiological abnormality and minimal symptoms. The diagnosis of CCPA was based on consistent clinicoradiological features along with demonstration of Aspergillus infection (growth of Aspergillus in sputum or bronchoalveolar lavage fluid [BALF] culture; serum or BALF galactomannan index >0.5 and >1, respectively). For determining the cut-off of A. fumigatus-specific IgG (Phadia), subjects were randomly classified as derivation (two-thirds) and validation (one-third) cohort. One hundred and thirty-seven cases and 50 controls were included. The best cut-off value for A. fumigatus-specific IgG (derivation cohort) was 27.3 mgA/L (AUROC, 0.976) at a sensitivity and specificity of 95.6% and 100%, respectively. Using a cut-off of 27 mgA/L, the sensitivity and specificity in the validation cohort was 91.3% and 100%, respectively. In contrast, the sensitivity of Aspergillus precipitins was only 25.5%. At a cut-off value of 27 mgA/L, A. fumigatus-specific IgG is a reliable test with high sensitivity and specificity in the diagnosis of CPA. More studies are required to confirm our findings.

Topics: Adult; Aged; Antibodies, Fungal; Aspergillus fumigatus; Chronic Disease; Female; Galactose; Humans; Immunoglobulin G; Male; Mannans; Middle Aged; Prospective Studies; Pulmonary Aspergillosis; Radiography, Thoracic; ROC Curve; Sensitivity and Specificity

Galactomannan (GM) and Aspergillus DNA detection are useful tools for the diagnosis of invasive pulmonary aspergillosis (IPA), primarily in blood and bronchoscopy samples. This study aimed to evaluate the utility of both markers for detection of Aspergillus in sputum from patients with allergic bronchopulmonary aspergillosis (ABPA) and chronic pulmonary aspergillosis (CPA).. ABPA or CPA demographic patient data were retrieved. This retrospective observational audit included 159 patients with at least one sputum pair. 223 sputum sample pairs were analysed, as well as six control samples for GM only. Real time PCR was performed following sputum DNA extraction using the MycAssay™ Aspergillus kit and cycle thresholds were subtracted from 38 to give positive values (transformed Ct, TCt).. The mean age of the patients was 61.81years (SD: ±11.06; range 29-100). One hundred and twenty-six (79.2%) had CPA. Cultures were positive for fungi in 13.1% of the samples, and A. fumigatus was the commonest (11.9%) fungus isolated. Receiver operating characteristic (ROC curve) analysis of sputum GM comparing TCt of >0.0, and >2.0 to derive GMI cut-off values showed a cut-off of 6.5. About 50% of sputa with strongly positive PCR values had GM values>6.5. Two of six (33%) control samples had GM indices>6.5.. It is not clear that GM determinations in sputum are useful for diagnosis of either CPA or ABPA, or following therapy.

Topics: Adult; Aged; Aged, 80 and over; Aspergillosis, Allergic Bronchopulmonary; Aspergillus; Biomarkers; Bronchoalveolar Lavage Fluid; Chronic Disease; DNA, Fungal; Enzyme-Linked Immunosorbent Assay; Female; Galactose; Humans; Male; Mannans; Middle Aged; Polymerase Chain Reaction; Pulmonary Aspergillosis; Retrospective Studies; ROC Curve; Sputum

In recent years, infections caused by Aspergillus sp. have become an emerging focus of clinical microbiology and infectious disease, as the number of patients infected with Aspergillus sp. has increased markedly. Although chronic pulmonary aspergillosis (CPA) is considered a 'semi-invasive' or 'intermediate' disease, little data are available for the direct comparison of CPA with invasive pulmonary aspergillosis (IPA) and pulmonary aspergilloma (PA) to quantify invasiveness. In this study, we compared the characteristics of CPA with those of IPA and PA among hospitalized patients over a 10-year period. A total of 29, 51 and 31 cases of CPA, IPA and PA, respectively, were included. An increasing trend in galactomannan antigen seropositivity rate from PA (24.1%) to CPA (35.7%) to IPA (54.9%) and an opposite trend for anti-Aspergillus antibody (PA (71.0%) to CPA (45.8%) to IPA (7.1%)) were observed. Eight percent of CPA patients were infected with more than one Aspergillus sp. The survival rate of the CPA group also fell between the survival rate of PA and IPA, confirming the intermediate severity of CPA. The survival rate of the CPA group became significantly higher than that of the IPA group from day 180 onwards until 2 years after admission (P<0.05). The survival rate of the CPA group remained lower than that of the PA group from day 30 onwards until 2 years after admission. Poor prognostic factors for CPA included older age (P=0.019), higher total leukocyte count (P=0.011) and higher neutrophil count (P=0.012) on admission. This study provided clinical and laboratory evidence for the semi-invasive properties of CPA.

Topics: Adolescent; Adult; Age Factors; Aged; Aged, 80 and over; Antibodies, Fungal; Aspergillus; Child; Chronic Disease; Female; Galactose; Humans; Invasive Pulmonary Aspergillosis; Male; Mannans; Microbiological Techniques; Middle Aged; Prognosis; Pulmonary Aspergillosis; Survival Rate; Time Factors; Young Adult

A serum galactomannan (GM) antigen test has been widely used to diagnose invasive pulmonary aspergillosis. However, there are limited data on the use of the serum GM antigen test for the serologic diagnosis of chronic pulmonary aspergillosis (CPA).. Data were collected from all consecutive patients with a clinical suspicion of CPA who underwent a serum GM antigen test.. In total, 334 patients who were suspected to have CPA were eligible for this study and 168 (50%) patients were finally diagnosed with CPA. The serum GM antigen test was positive in 38 (23%) patients with CPA and in 25 (15%) patients without CPA. The sensitivity of the serum GM antigen test was 23% (95% confidence interval [CI], 17-30%), and its specificity was 85% (95% CI, 79-90%), with positive and negative predictive values of 60% (95% CI, 47-72%) and 52% (95% CI, 46-58%), respectively. The accuracy of the test was 54%. The area under the receiver operating characteristic curve was 0.538 (95% CI, 0.496-0.580).. The serum GM antigen test could not be used for the serologic diagnosis of CPA.

Topics: Aged; Antigens, Fungal; Biomarkers; Chronic Disease; Female; Galactose; Humans; Male; Mannans; Middle Aged; Predictive Value of Tests; Pulmonary Aspergillosis; Sensitivity and Specificity; Serologic Tests; Serum

Diagnosing chronic pulmonary aspergillosis (CPA) is complicated, and there are limited data available regarding the identification of galactomannan (GM) in clinical specimens to assist the detection of this infection. The purpose of this study was to evaluate the detection of GM in bronchoalveolar lavage fluid (BALF) and serum and to assess its utility for diagnosing CPA. We retrospectively reviewed the diagnostic and clinical characteristics of 144 patients, with and without CPA, in Nagasaki University Hospital, Japan, whose BAL and serum specimens were examined for the presence of GM. The Platelia Aspergillus enzyme immunoassay (PA EIA) was performed according to the manufacturer's instructions. The mean values of BALF GM antigen were 4.535 (range, 0.062-14.120) and 0.430 (range, 0.062-9.285) in CPA (18) and non-CPA (126) patients, respectively. The mean values of serum GM antigen were 1.557 (range, 0.232-5.397) and 0.864 (range, 0.028-8.956) in CPA and non-CPA patients, respectively. PA EIA of BALF is superior to the test with serum, with the optimal cut-off values for BALF and serum of 0.4 and 0.7, respectively. The sensitivity and specificity of PA EIA in BALF at a cut-off of 0.4 were 77.2% and 77.0%, respectively, whereas with serum at a cut-off of 0.7, they were 66.7% and 63.5%, respectively. GM testing using BALF showed reasonable sensitivity and specificity as compared to that using serum. Thus, assessing GM levels in BALF may enhance the accuracy of diagnosing CPA.

Topics: Adult; Aged; Aged, 80 and over; Aspergillus; Bronchoalveolar Lavage Fluid; Chronic Disease; Clinical Laboratory Techniques; Female; Galactose; Humans; Immunoenzyme Techniques; Japan; Male; Mannans; Middle Aged; Pulmonary Aspergillosis; Retrospective Studies; Sensitivity and Specificity; Serum; Young Adult

In order to establish the reliable cut-off value of galactomannan (GM) antigen as well as that for beta-D-glucan for CNPA diagnosis, we conducted the following study. From 2001 to 2008, in a total of 1511 patients we measured GM and anti-aspergillus antibody simultaneously. These patients had chronic pulmonary disease including old tuberculosis, nontuberculous mycobacteriosis, COPD, and had bullous lung, interstitial lung disease or were suspected to have suspected to have interstitial lung disease. We designated cases as probable CNPA when the sample represented a positive anti-aspergillus antibody. We then analyzed the sensitivity and specificity according to various GM antigen values. When using the GM antigen cut-off value at 0.5, the sensitivity and specificity for CNPA were 63.4% and 68.6% respectively. Using 1.0 for cut-off value resulted in the better specificity for CNPA diagnosis. Similar analysis was performed on beta-D-glucan for CNPA diagnosis. When using D-glucan cut-off value as 20 pg/ml, the sensitivity and specificity for CNPA. These results indicate that the cut-off value of serological examination for infectious disease should be considered by the type of disease.

Topics: Antigens, Bacterial; beta-Glucans; Chronic Disease; Galactose; Humans; Mannans; Necrosis; Proteoglycans; Pulmonary Aspergillosis; Sensitivity and Specificity

We describe the case of a patient with improving invasive aspergillosis and paradoxically rising serum galactomannan levels in the presence of chronic renal failure and ongoing hemodialysis. Dialysate tested negative for galactomannan, demonstrating the inability of treatments such as hemodialysis to clear Aspergillus antigen from serum. In patients with renal failure and aspergillosis, rising serum galactomannan levels may not necessarily signify progressive infection.

Topics: Adolescent; Antigens, Fungal; Aspergillosis; Aspergillus flavus; Chronic Disease; Fungemia; Galactose; Humans; Male; Mannans; Renal Dialysis; Renal Insufficiency

Topics: Adult; Antigens, Fungal; Aspergillosis; Aspergillus; Bone Marrow Transplantation; Chronic Disease; Enzyme-Linked Immunosorbent Assay; False Positive Reactions; Female; Galactose; Graft vs Host Disease; Humans; Mannans; Transplantation, Homologous