C-reactive protein (CRP)
C-reactive protein (CRP) is a pentameric acute-phase protein produced primarily by the liver in response to inflammatory signaling, especially Interleukin-6 (IL-6).
C-reactive protein (CRP) is a pentameric acute-phase protein produced primarily by the liver in response to inflammatory signaling, especially Interleukin-6 (IL-6). It is widely used in clinical medicine as a nonspecific biomarker of systemic inflammation, tissue injury, infection, and treatment response. Because CRP rises rapidly and can be measured reproducibly in blood plasma or serum, it is commonly incorporated into diagnostic algorithms, prognostic models, and longitudinal monitoring across many disease areas.
Biologically, CRP participates in innate immune responses by binding to phosphocholine-containing ligands on damaged cells and some microbial surfaces, thereby promoting complement activation and opsonization. In recent biomedical research, CRP is frequently studied alongside ferritin, Leptin (LEP), interleukin-6, tumor necrosis factor alpha, alpha-1-acid glycoprotein, and cluster of differentiation-14 as part of broader inflammatory signatures. It is also used as a covariate or outcome marker in studies of checkpoint inhibitor therapy, antiretroviral therapy, type 2 diabetes, COVID-19, chronic renal insufficiency, and metabolic dysfunction–associated steatotic liver disease.
Where the papers sit
19 papers from the last 6 months study C-reactive protein (CRP) directly · updated from PubMed 3 Oct 2026
Study type 0 clinical trials · 10 observational · 8 human data · 1 unclassified
Themes 4 themes · 1 new direction
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Inflammatory Biomarkers in Acute Care
Inflammatory biomarkers are being tested as severity, prognosis and treatment-response indicators across acute and chronic disease. IL-6, procalcitonin, CRP and LDH-based ratios recur in appendicitis, COVID-19, vasculitis and pyelonephritis, with mortality and hospital stay as common endpoints. In axial spondyloarthritis, baseline CRP is examined as a modifier of biologic effectiveness rather than only a diagnostic signal. Genetic analyses of CRP and gestational diabetes add uncertainty about causation, so clinical utility remains context-dependent.
7 papers · 36.8%
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Portable Biomarker Detection
Multiplex, portable assays are moving inflammatory biomarker testing beyond centralized laboratories. Lateral-flow strips, AIE nanoparticle immunoassays, smartphone readouts and integrated flow formats target rapid quantitative measurement. Serum amyloid A, CRP and progranulin recur in infection and inflammation applications, while plasma signatures extend testing to cerebral amyloid angiopathy. Clinical validation across diseases and analyte panels remains open.
5 papers · 26.3%
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Host Biomarkers for Infection
Host-response scores are moving infection assessment toward rapid rule-in and rule-out decisions rather than pathogen testing alone. MeMed BV, procalcitonin, CRP and interferon gamma-induced protein 10 are compared for bacterial infection, TB triage and pediatric acute care. Prospective stewardship work asks whether biomarker algorithms can safely reduce antibiotics, while diagnostic studies emphasize sensitivity and specificity. The need for repeat blood tests and performance across ages and settings remain practical gaps.
4 papers · 21.1%
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Others — Inflammation and Clinical Risk
Inflammatory signals are being used in three separate clinical questions: drug-related neuropsychiatric toxicity, infection prediction in lupus, and mood symptoms with neuropathic pain. Abemaciclib and palbociclib are compared through pharmacovigilance, whereas explainable machine learning uses systemic features to estimate infection risk. IL-1α and CRP are linked to anxiety and depression, but this does not establish a shared mechanism across the applications. The cluster therefore has no single disease or clinical trajectory.
3 papers · 15.8%
In major depressive disorder, CRP is modeled as a mediator linking neuropathic pain with anxiety and depression rather than solely as a peripheral inflammatory biomarker
The study of first-episode, drug-naive major depressive disorder with anxiety and pain 42608680Aug assumes the usual biomarker role for CRP but instead uses inflammatory measurements and sequential path models to examine CRP as part of the pathway connecting neuropathic pain, anxiety, and depressive symptoms. This gives CRP a mechanistic, symptom-linking role in neuropsychiatric comorbidity, extending beyond the diagnostic, prognostic, treatment-response, and disease-classification uses represented elsewhere in the set.
Papers
The 19 papers from the last 6 months that study C-reactive protein (CRP) directly, newest first, by theme and by study type. Study types come from PubMed publication types and MeSH headings.
By theme
Inflammatory Biomarkers in Acute Care (7)
- Maternal and offspring genome-wide association study of C-reactive protein reveals limited polygenic association with gestational diabetes mellitus. BMC genomics · 24 Sept 2026 PMID 42786432
- Admission CRP as an Independent Predictor of Prolonged Length of Stay in Calculous Acute Pyelonephritis: A Comparative Evaluation With the HALP Score. Medical science monitor : international medical journal of experimental and clinical research · 22 Sept 2026 PMID 42771593
- Dynamic lactate dehydrogenase/lymphocyte ratio and C-reactive protein as predictors of mortality after plasma exchange in ANCA-associated vasculitis: A retrospective case control study. Medicine · 22 Aug 2026 PMID 42629677
- The diagnostic value of interleukin-6, procalcitonin, and C-reactive protein in the severity of acute appendicitis in children. Pediatric surgery international · 19 Aug 2026 PMID 42616153
- Multiplex Sensing and Molecular Classification of Osteoarthritis via a Biomarker-Responsive Dual-Nanozyme Activity Sensor Array. Analytical chemistry · 18 Aug 2026 PMID 42610914
- Impact of C reactive protein on effectiveness of interleukin-17 and tumour necrosis factor inhibitors in axial spondyloarthritis: a Danish nationwide observational study. RMD open · 16 Jun 2026 PMID 42303383
- Cross-talk between inflammation and coagulation in severe COVID-19: Association of leptin and classical pro-inflammatory markers with coagulation disorders in a single-center observational cohort study. Medicine · 1 May 2026 PMID 42065184
Portable Biomarker Detection (5)
- Dual-color ultrabright AIEgens nanoparticles-based lateral flow immunoassay for simultaneous quantitative detection of serum amyloid A protein and C-reactive protein. Analytica chimica acta · 2 Jun 2026 PMID 42230014
- A plasma protein signature for cerebral amyloid angiopathy. Acta neuropathologica · 20 May 2026 PMID 42162487
- Evaluation of serum progranulin as a biomarker for early detection of neonatal sepsis in a microbiological context. Scientific reports · 18 May 2026 PMID 42151335
- Unidirectional-flow assay strip fabricated via an integrated process for multiplex detection of inflammatory biomarkers. Analytica chimica acta · 13 May 2026 PMID 42128567
- Smartphone-Based Microbubble-Linked Immunosorbent Assay Powered by Classification-Regression Integrated Deep Learning for Portable Quantitative Biomarker Analysis. ACS nano · 5 May 2026 PMID 42083727
Host Biomarkers for Infection (4)
- Shall we repeat? Predicting the necessity to repeat blood testing in pediatric emergency departments of laboratory tests previously performed in the community using a machine learning model. PloS one · 21 Sept 2026 PMID 42766625
- Performance of a host-protein score (MeMed BV score) for detecting bacterial infections in young children. European journal of pediatrics · 20 Aug 2026 PMID 42622693
- Comparison of standard care versus a biomarker algorithm to guide antibiotic stewardship in pediatric intensive care unit: a prospective observational cohort study with historical control (the BASIP study). European journal of pediatrics · 6 Aug 2026 PMID 42560479
- Head-to-head evaluation of host blood biomarkers for point-of-care TB triage: diagnostic accuracy study. Journal of clinical microbiology · 27 Jul 2026 PMID 42506936
Others — Inflammation and Clinical Risk (3)
- IL-1α and CRP as key inflammatory mediators linking neuropathic pain, anxiety, and depression in major depressive disorder. BMC psychiatry · 18 Aug 2026 PMID 42608680
- An explainable machine learning model for predicting in-hospital infection in patients with systemic lupus erythematosus. Renal failure · 5 Aug 2026 PMID 42557059
- Divergent neuropsychiatric and systemic toxicity profiles of abemaciclib and palbociclib: a triangulation study integrating pharmacovigilance, genetic epidemiology, and multi-omics profiling. Naunyn-Schmiedeberg's archives of pharmacology · 6 May 2026 PMID 42091703
By study type
Observational studies and case reports (10)
- Admission CRP as an Independent Predictor of Prolonged Length of Stay in Calculous Acute Pyelonephritis: A Comparative Evaluation With the HALP Score. Medical science monitor : international medical journal of experimental and clinical research · 22 Sept 2026 PMID 42771593
- Dynamic lactate dehydrogenase/lymphocyte ratio and C-reactive protein as predictors of mortality after plasma exchange in ANCA-associated vasculitis: A retrospective case control study. Medicine · 22 Aug 2026 PMID 42629677
- Performance of a host-protein score (MeMed BV score) for detecting bacterial infections in young children. European journal of pediatrics · 20 Aug 2026 PMID 42622693
- The diagnostic value of interleukin-6, procalcitonin, and C-reactive protein in the severity of acute appendicitis in children. Pediatric surgery international · 19 Aug 2026 PMID 42616153
- IL-1α and CRP as key inflammatory mediators linking neuropathic pain, anxiety, and depression in major depressive disorder. BMC psychiatry · 18 Aug 2026 PMID 42608680
- Comparison of standard care versus a biomarker algorithm to guide antibiotic stewardship in pediatric intensive care unit: a prospective observational cohort study with historical control (the BASIP study). European journal of pediatrics · 6 Aug 2026 PMID 42560479
- Impact of C reactive protein on effectiveness of interleukin-17 and tumour necrosis factor inhibitors in axial spondyloarthritis: a Danish nationwide observational study. RMD open · 16 Jun 2026 PMID 42303383
- A plasma protein signature for cerebral amyloid angiopathy. Acta neuropathologica · 20 May 2026 PMID 42162487
- Evaluation of serum progranulin as a biomarker for early detection of neonatal sepsis in a microbiological context. Scientific reports · 18 May 2026 PMID 42151335
- Cross-talk between inflammation and coagulation in severe COVID-19: Association of leptin and classical pro-inflammatory markers with coagulation disorders in a single-center observational cohort study. Medicine · 1 May 2026 PMID 42065184
Human data, design not indexed (8)
- Maternal and offspring genome-wide association study of C-reactive protein reveals limited polygenic association with gestational diabetes mellitus. BMC genomics · 24 Sept 2026 PMID 42786432
- Shall we repeat? Predicting the necessity to repeat blood testing in pediatric emergency departments of laboratory tests previously performed in the community using a machine learning model. PloS one · 21 Sept 2026 PMID 42766625
- Multiplex Sensing and Molecular Classification of Osteoarthritis via a Biomarker-Responsive Dual-Nanozyme Activity Sensor Array. Analytical chemistry · 18 Aug 2026 PMID 42610914
- An explainable machine learning model for predicting in-hospital infection in patients with systemic lupus erythematosus. Renal failure · 5 Aug 2026 PMID 42557059
- Head-to-head evaluation of host blood biomarkers for point-of-care TB triage: diagnostic accuracy study. Journal of clinical microbiology · 27 Jul 2026 PMID 42506936
- Dual-color ultrabright AIEgens nanoparticles-based lateral flow immunoassay for simultaneous quantitative detection of serum amyloid A protein and C-reactive protein. Analytica chimica acta · 2 Jun 2026 PMID 42230014
- Unidirectional-flow assay strip fabricated via an integrated process for multiplex detection of inflammatory biomarkers. Analytica chimica acta · 13 May 2026 PMID 42128567
- Smartphone-Based Microbubble-Linked Immunosorbent Assay Powered by Classification-Regression Integrated Deep Learning for Portable Quantitative Biomarker Analysis. ACS nano · 5 May 2026 PMID 42083727
Unclassified: not yet indexed with MeSH (1)
- Divergent neuropsychiatric and systemic toxicity profiles of abemaciclib and palbociclib: a triangulation study integrating pharmacovigilance, genetic epidemiology, and multi-omics profiling. Naunyn-Schmiedeberg's archives of pharmacology · 6 May 2026 PMID 42091703
Written from 19 PubMed abstracts, each one listed by PMID above. Published: 2026-06-15. Last written: 2026-09-26 by GPT. Drafted by language models from published abstracts; not medical advice.