LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 232

Search options

  1. Article: Novel Host Response-Based Diagnostics to Differentiate the Etiology of Fever in Patients Presenting to the Emergency Department.

    Atallah, Johnny / Ghebremichael, Musie / Timmer, Kyle D / Warren, Hailey M / Mallinger, Ella / Wallace, Ellen / Strouts, Fiona R / Persing, David H / Mansour, Michael K

    Diagnostics (Basel, Switzerland)

    2023  Volume 13, Issue 5

    Abstract: Fever is a common presentation to urgent-care services and is linked to multiple disease processes. To rapidly determine the etiology of fever, improved diagnostic modalities are necessary. This prospective study of 100 hospitalized febrile patients ... ...

    Abstract Fever is a common presentation to urgent-care services and is linked to multiple disease processes. To rapidly determine the etiology of fever, improved diagnostic modalities are necessary. This prospective study of 100 hospitalized febrile patients included both positive (FP) and negative (FN) subjects in terms of infection status and 22 healthy controls (HC). We evaluated the performance of a novel PCR-based assay measuring five host mRNA transcripts directly from whole blood to differentiate infectious versus non-infectious febrile syndromes as compared to traditional pathogen-based microbiology results. The FP and FN groups observed a robust network structure with a significant correlation between the five genes. There were statistically significant associations between positive infection status and four of the five genes: IRF-9 (OR = 1.750, 95% CI = 1.16-2.638), ITGAM (OR = 1.533, 95% CI = 1.047-2.244), PSTPIP2 (OR = 2.191, 95% CI = 1.293-3.711), and RUNX1 (OR = 1.974, 95% CI = 1.069-3.646). We developed a classifier model to classify study participants based on these five genes and other variables of interest to assess the discriminatory power of the genes. The classifier model correctly classified more than 80% of the participants into their respective groups, i.e., FP or FN. The GeneXpert prototype holds promise for guiding rapid clinical decision-making, reducing healthcare costs, and improving outcomes in undifferentiated febrile patients presenting for urgent evaluation.
    Language English
    Publishing date 2023-03-02
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662336-5
    ISSN 2075-4418
    ISSN 2075-4418
    DOI 10.3390/diagnostics13050953
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Real-time Screening of Specimen Pools for Coronavirus Disease 2019 (COVID-19) Infection at Sanya Airport, Hainan Island, China.

    Li, Huiling / Sun, Kai / Persing, David H / Tang, Yi-Wei / Shen, Dingxia

    Clinical infectious diseases : an official publication of the Infectious Diseases Society of America

    2020  Volume 73, Issue 2, Page(s) 318–320

    Abstract: A 10:1 pooled test strategy on-site at an airport of China was pursued, resulting in increased test throughput, limited use of reagents, and increased testing efficiency without loss of sensitivity. This testing approach has the potential to reduce the ... ...

    Abstract A 10:1 pooled test strategy on-site at an airport of China was pursued, resulting in increased test throughput, limited use of reagents, and increased testing efficiency without loss of sensitivity. This testing approach has the potential to reduce the need for contact tracing when the results are delivered first time.
    MeSH term(s) Airports ; COVID-19 ; China/epidemiology ; Contact Tracing ; Humans ; Mass Screening ; SARS-CoV-2
    Keywords covid19
    Language English
    Publishing date 2020-09-30
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1099781-7
    ISSN 1537-6591 ; 1058-4838
    ISSN (online) 1537-6591
    ISSN 1058-4838
    DOI 10.1093/cid/ciaa1074
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Novel Host Response-Based Diagnostics to Differentiate the Etiology of Fever in Patients Presenting to the Emergency Department

    Johnny Atallah / Musie Ghebremichael / Kyle D. Timmer / Hailey M. Warren / Ella Mallinger / Ellen Wallace / Fiona R. Strouts / David H. Persing / Michael K. Mansour

    Diagnostics, Vol 13, Iss 953, p

    2023  Volume 953

    Abstract: Fever is a common presentation to urgent-care services and is linked to multiple disease processes. To rapidly determine the etiology of fever, improved diagnostic modalities are necessary. This prospective study of 100 hospitalized febrile patients ... ...

    Abstract Fever is a common presentation to urgent-care services and is linked to multiple disease processes. To rapidly determine the etiology of fever, improved diagnostic modalities are necessary. This prospective study of 100 hospitalized febrile patients included both positive (FP) and negative (FN) subjects in terms of infection status and 22 healthy controls (HC). We evaluated the performance of a novel PCR-based assay measuring five host mRNA transcripts directly from whole blood to differentiate infectious versus non-infectious febrile syndromes as compared to traditional pathogen-based microbiology results. The FP and FN groups observed a robust network structure with a significant correlation between the five genes. There were statistically significant associations between positive infection status and four of the five genes: IRF-9 (OR = 1.750, 95% CI = 1.16–2.638), ITGAM (OR = 1.533, 95% CI = 1.047–2.244), PSTPIP2 (OR = 2.191, 95% CI = 1.293–3.711), and RUNX1 (OR = 1.974, 95% CI = 1.069–3.646). We developed a classifier model to classify study participants based on these five genes and other variables of interest to assess the discriminatory power of the genes. The classifier model correctly classified more than 80% of the participants into their respective groups, i.e., FP or FN. The GeneXpert prototype holds promise for guiding rapid clinical decision-making, reducing healthcare costs, and improving outcomes in undifferentiated febrile patients presenting for urgent evaluation.
    Keywords host-response ; diagnostics ; gene signatures ; fever ; febrile syndromes ; Medicine (General) ; R5-920
    Subject code 610
    Language English
    Publishing date 2023-03-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  4. Article ; Online: Predictive Factors of Outcomes in Helmet Therapy for Deformational Plagiocephaly and Brachycephaly.

    Hauc, Sacha C / Long, Aaron S / Rivera, Jean Carlo / Ihnat, Jacqueline / Littlefield, Timothy R / Shah, Hemali P / Pondugula, Nishita / Junn, Adam H / Almeida, Mariana N / Alper, David / Persing, John / Alperovich, Michael

    The Journal of craniofacial surgery

    2022  Volume 34, Issue 1, Page(s) 231–234

    Abstract: Deformational plagiocephaly and brachycephaly, or abnormal flattening of the infant skull due to external forces, are often managed with orthotic helmet therapy. Although helmet therapy is widely used, the factors that predict poor outcomes are not well ... ...

    Abstract Deformational plagiocephaly and brachycephaly, or abnormal flattening of the infant skull due to external forces, are often managed with orthotic helmet therapy. Although helmet therapy is widely used, the factors that predict poor outcomes are not well characterized. In this study of over 140,000 patients who received helmet therapy, older age and greater severity at presentation, and noncompliance with treatment were each independently associated with worse craniometric and provider-reported outcomes. Each additional point of cranial vault asymmetry index or cephalic index at a presentation is associated with an increased likelihood of residual brachycephaly at completion [odds ratio (OR): 1.067; 95% Cl: 1.058-1.075; P <0.0001 and OR: 2.043; 95% CI: 2.021-2.065; P <0.0001, respectively], whereas each additional point of cranial vault asymmetry index at a presentation associated with increased likelihood of residual asymmetry at completion (OR: 2.148; 95% Cl: 2.118-2.179; P <0.0001). Patients were more likely to have residual brachycephaly or asymmetry with increasing age at treatment initiation (OR: 1.562; 95% CI: 1.524-1.600; P <0.0001 and OR: 1.673; 95% Cl: 1.634-1.713; P <0.0001, respectively, for each additional month of age at initiation). These results highlight a need for prompt referral for helmeting, especially in cases with severe features or when patients present late to care. Potentially modifiable factors are age at helmeting and compliance with treatment protocols, and consideration of these factors may be important for achieving success in some cases.
    MeSH term(s) Infant ; Humans ; Plagiocephaly, Nonsynostotic/therapy ; Treatment Outcome ; Head Protective Devices ; Skull ; Craniosynostoses/therapy ; Orthotic Devices ; Plagiocephaly
    Language English
    Publishing date 2022-10-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1159501-2
    ISSN 1536-3732 ; 1049-2275
    ISSN (online) 1536-3732
    ISSN 1049-2275
    DOI 10.1097/SCS.0000000000009048
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: The SARS-CoV-2 Outbreak: Diagnosis, Infection Prevention, and Public Perception.

    Wang, Ping / Anderson, Neil / Pan, Yang / Poon, Leo / Charlton, Carmen / Zelyas, Nathan / Persing, David / Rhoads, Daniel / Babcock, Hilary

    Clinical chemistry

    2020  

    Keywords covid19
    Language English
    Publishing date 2020-03-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 80102-1
    ISSN 1530-8561 ; 0009-9147
    ISSN (online) 1530-8561
    ISSN 0009-9147
    DOI 10.1093/clinchem/hvaa080
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Activating human epidermal growth factor receptor 2 (HER2) gene mutation in bone metastases from breast cancer.

    Christgen, Matthias / Bartels, Stephan / Luft, Angelina / Persing, Sascha / Henkel, Daniel / Lehmann, Ulrich / Kreipe, Hans

    Virchows Archiv : an international journal of pathology

    2018  Volume 473, Issue 5, Page(s) 577–582

    Abstract: In addition to amplification, point mutations of the human epidermal growth factor receptor 2 (HER2) gene (ERBB2) have been shown to activate the corresponding signaling pathway in breast cancer. The prevalence of ERBB2/HER2 mutation in bone metastasis ... ...

    Abstract In addition to amplification, point mutations of the human epidermal growth factor receptor 2 (HER2) gene (ERBB2) have been shown to activate the corresponding signaling pathway in breast cancer. The prevalence of ERBB2/HER2 mutation in bone metastasis of breast cancer and the associated phenotype are not known. In this study, bone metastases from breast cancer patients (n = 231) were analyzed for ERBB2/HER2 mutation. In 7 patients (3%; median age 70 years, range 50-83 years), gain-of-function mutations of ERBB2/HER2 were detected. The most frequent mutation was p.L755S (71%). In 29% of mutated cases, p.V777L was found. Lobular breast cancer was present in 71% of mutated cases (n = 5) and in 49% of all samples (n = 231; p = 0.275). Mutation frequency was 4.4% in the lobular subgroup and 17.4% in the pleomorphic subtype of lobular cancer (n = 23), respectively. All but one mutated lobular cancers were of the pleomorphic subtype (p = 0.006). Mutated cancers belonged either to the luminal (n = 4) or to the triple-negative types (n = 3). With regard to protein expression and gene amplification, HER2 was negative in all mutated cases. Among the 14% of metastatic luminal cancers with estrogen receptor gene (ESR1) mutation, conveying resistance against aromatase inhibitors, no concomitant ERBB2/HER2 mutation occurred. We conclude that activating HER2 mutation is present in about 3% of bone metastases from breast cancers, with significantly higher rates in the pleomorphic subtype of lobular cancer. Since mutated cases appear to be HER2-negative by conventional testing, the opportunity for specific anti-HER2 therapy may be missed.
    MeSH term(s) Adult ; Aged ; Aged, 80 and over ; Bone Neoplasms/genetics ; Bone Neoplasms/secondary ; Breast Neoplasms/genetics ; Breast Neoplasms/pathology ; Carcinoma, Lobular/genetics ; Carcinoma, Lobular/secondary ; Female ; Gain of Function Mutation ; Gene Expression Regulation, Neoplastic ; Humans ; Middle Aged ; Point Mutation ; Receptor, ErbB-2/genetics ; Retrospective Studies
    Chemical Substances ERBB2 protein, human (EC 2.7.10.1) ; Receptor, ErbB-2 (EC 2.7.10.1)
    Language English
    Publishing date 2018-08-09
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1184867-4
    ISSN 1432-2307 ; 0945-6317
    ISSN (online) 1432-2307
    ISSN 0945-6317
    DOI 10.1007/s00428-018-2414-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article: Real-time Screening of Specimen Pools for Coronavirus Disease 2019 (COVID-19) Infection at Sanya Airport, Hainan Island, China

    Li, Huiling / Sun, Kai / Persing, David H / Tang, Yi-Wei / Shen, Dingxia

    Clin. infect. dis

    Abstract: A 10:1 pooled test strategy on-site at an airport of China was pursued, resulting in increased test throughput, limited use of reagents, and increased testing efficiency without loss of sensitivity. This testing approach has the potential to reduce the ... ...

    Abstract A 10:1 pooled test strategy on-site at an airport of China was pursued, resulting in increased test throughput, limited use of reagents, and increased testing efficiency without loss of sensitivity. This testing approach has the potential to reduce the need for contact tracing when the results are delivered first time.
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #805320
    Database COVID19

    Kategorien

  8. Article ; Online: Real-time Screening of Specimen Pools for Coronavirus Disease 2019 (COVID-19) Infection at Sanya Airport, Hainan Island, China

    Li, Huiling / Sun, Kai / Persing, David H / Tang, Yi-Wei / Shen, Dingxia

    Clinical Infectious Diseases ; ISSN 1058-4838 1537-6591

    2020  

    Abstract: Abstract A 10:1 pooled test strategy on-site at an airport of China was pursued, resulting in increased test throughput, limited use of reagents, and increased testing efficiency without loss of sensitivity. This testing approach has the potential to ... ...

    Abstract Abstract A 10:1 pooled test strategy on-site at an airport of China was pursued, resulting in increased test throughput, limited use of reagents, and increased testing efficiency without loss of sensitivity. This testing approach has the potential to reduce the need for contact tracing when the results are delivered first time.
    Keywords Microbiology (medical) ; Infectious Diseases ; covid19
    Language English
    Publisher Oxford University Press (OUP)
    Publishing country uk
    Document type Article ; Online
    DOI 10.1093/cid/ciaa1074
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  9. Article: Whither the chips may fall?

    Persing, D H

    Molecular diagnosis : a journal devoted to the understanding of human disease through the clinical application of molecular biology

    1999  Volume 4, Issue 4, Page(s) 389

    MeSH term(s) Diagnostic Techniques and Procedures ; Gene Expression Profiling ; Humans ; Oligonucleotide Array Sequence Analysis ; Periodicals as Topic ; Polymerase Chain Reaction
    Language English
    Publishing date 1999-12
    Publishing country United States
    Document type Letter
    ZDB-ID 1405760-8
    ISSN 1084-8592
    ISSN 1084-8592
    DOI 10.1016/s1084-8592(99)80015-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: The Xpert MTB/RIF Ultra assay detects Mycobacterium tuberculosis complex DNA in white rhinoceros (Ceratotherium simum) and African elephants (Loxodonta africana).

    Goosen, Wynand J / Kerr, Tanya J / Kleynhans, Léanie / Warren, Robin M / van Helden, Paul D / Persing, David H / Parsons, Sven D C / Buss, Peter / Miller, Michele A

    Scientific reports

    2020  Volume 10, Issue 1, Page(s) 14482

    Abstract: The study describes the novel use of the Xpert MTB/RIF Ultra assay for detection of Mycobacterium tuberculosis complex (MTBC) DNA in samples from white rhinoceros (Ceratotherium simum) and African elephants (Loxodonta africana). Culture negative ... ...

    Abstract The study describes the novel use of the Xpert MTB/RIF Ultra assay for detection of Mycobacterium tuberculosis complex (MTBC) DNA in samples from white rhinoceros (Ceratotherium simum) and African elephants (Loxodonta africana). Culture negative respiratory sample matrices were spiked to determine if the Ultra could detect MTBC DNA in rhinoceros and elephant samples. Rhinoceros bronchial alveolar lavage fluid (BALF) was found to have an inhibitory effect on the Ultra. In this study, the limit of detection (LOD) of M. tuberculosis H37Rv in all spiked animal samples were 2 CFU/ml compared to 15.6 CFU/ml for humans, while the LOD for M. bovis SB0121 was 30 CFU/ml compared to 143.4 CFU/ml for M. bovis BCG in humans. Screening was performed on stored tissue and respiratory samples from known MTBC-infected animals and MTBC DNA was detected in 92% of samples collected from six rhinoceros and two elephants. Conversely, 83% of culture-negative tissue and respiratory samples from uninfected animals tested negative on the Ultra. In conclusion, the Ultra assay appears to be a sensitive and rapid diagnostic test for the detection of MTBC DNA from tissue and respiratory samples collected from African elephants and rhinoceros. Furthermore, the Ultra assay could provide a new tool for the detection of MTBC in various sample types from other wildlife species.
    MeSH term(s) Animals ; Antibiotics, Antitubercular/pharmacology ; Biological Assay ; Bronchoalveolar Lavage Fluid ; DNA, Bacterial/isolation & purification ; Diagnostic Tests, Routine/veterinary ; Elephants/microbiology ; Humans ; Limit of Detection ; Mycobacterium bovis ; Mycobacterium tuberculosis/genetics ; Mycobacterium tuberculosis/isolation & purification ; Perissodactyla/microbiology ; Reproducibility of Results ; Rifampin/pharmacology ; Sensitivity and Specificity ; Sputum/microbiology
    Chemical Substances Antibiotics, Antitubercular ; DNA, Bacterial ; Rifampin (VJT6J7R4TR)
    Language English
    Publishing date 2020-09-02
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-020-71568-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top