Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Proofreading01:31

Proofreading

9.4K
Synthesis of new DNA molecules is carried out by the enzyme DNA polymerase, which adds nucleotides on the daughter strand complementary to the template DNA strand. DNA polymerase has a higher affinity to add the correct base and ensures fidelity during DNA replication. Furthermore,  it exhibits proofreading activity during replication, using an exonuclease domain that cuts off incorrect nucleotides from the nascent DNA strand.
Errors During Replication are Corrected by the DNA Polymerase...
9.4K
Proofreading01:43

Proofreading

61.8K
Overview
61.8K
Clot Retraction and Fibrinolysis01:16

Clot Retraction and Fibrinolysis

9.8K
After a fibrin clot is formed, the next step is clot retraction, a vital process facilitated by platelet contractile proteins, such as actin and myosin. These proteins pull the fibrin strands closer together and condense the clot. This action reduces the size of the clot, creating a smaller, denser structure that effectively seals off the damaged vessel. Clot retraction consolidates the clot and helps with wound healing by bringing the edges of the damaged blood vessel closer together.
9.8K
Mismatch Repair01:36

Mismatch Repair

44.3K
Overview
44.3K
Mismatch Repair01:20

Mismatch Repair

6.8K
Organisms are capable of detecting and fixing nucleotide mismatches that occur during DNA replication. This sophisticated process requires identifying the new strand and replacing the erroneous bases with correct nucleotides. Mismatch repair is coordinated by many proteins in both prokaryotes and eukaryotes.
The Mutator Protein Family Plays a Key Role in DNA Mismatch Repair
The human genome has more than 3 billion base pairs of DNA per cell. Prior to cell division, that vast amount of genetic...
6.8K
Repressible Operon: trp Operon01:21

Repressible Operon: trp Operon

2.2K
The trp operon in Escherichia coli exemplifies a repressible operon. It regulates the synthesis of tryptophan through repressor-mediated transcriptional control and attenuation. This dual regulatory mechanism ensures tryptophan biosynthesis occurs only when needed, conserving cellular resources.Structure of the trp OperonThe trp operon consists of five structural genes (trpE, trpD, trpC, trpB, and trpA) that encode enzymes for tryptophan biosynthesis. These genes are transcribed as a single...
2.2K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Dermatosurgical rounds: modified rhomboid transposition flap combining the Limberg and Dufourmentel techniques for reconstruction of primary defects following skin cancer excision in the zygomatic region.

Dermatology reports·2026
Same author

Xanthogranulomatous Inflammatory Pelvic Mass Mimicking Malignancy: Successful Conservative Treatment and Narrative Insights into Diagnosis and Management.

Journal of clinical medicine·2026
Same author

Dermatosurgical pearls: the East-West advancement flap for reconstruction of primary defects following skin cancer excision in the nasal region.

Dermatology reports·2026
Same author

Intranasal verrucous carcinoma with autoinoculation from benign warts in the context of locus minoris resistentiae.

Wiener medizinische Wochenschrift (1946)·2026
Same author

OUtcome and Clinical Characteristics of Primary Headache in Patients with Sarcoidosis: The OUCH! Study.

Life (Basel, Switzerland)·2026
Same author

Dalbavancin in the Real-World Management of Gram-Positive Infections: A Systematic Review of Randomized and Observational Studies.

Microorganisms·2026

Related Experiment Video

Updated: Mar 8, 2026

Transcorporal Artificial Urinary Sphincter Cuff Placement in a Case Requiring Revision for Urethral Atrophy
03:25

Transcorporal Artificial Urinary Sphincter Cuff Placement in a Case Requiring Revision for Urethral Atrophy

Published on: June 16, 2022

1.5K

Erratum.

Georgi Tchernev1, Anastasiya A Chikoeva, Marco Tana

  • 1. claudio.tana@ausl.re.it.

Sarcoidosis, Vasculitis, and Diffuse Lung Diseases : Official Journal of WASOG
|January 13, 2017
PubMed
Summary
This summary is machine-generated.

This study identified distinct transcriptional blood signatures for sarcoidosis and tuberculosis, offering potential diagnostic improvements. These findings aid in differentiating these conditions using blood-based biomarkers.

More Related Videos

Reconstitution Of β-catenin Degradation In Xenopus Egg Extract
09:41

Reconstitution Of β-catenin Degradation In Xenopus Egg Extract

Published on: June 17, 2014

12.5K
Surgical Correction for Pediatric Epiblepharon and Trichiasis
03:59

Surgical Correction for Pediatric Epiblepharon and Trichiasis

Published on: July 8, 2025

698

Related Experiment Videos

Last Updated: Mar 8, 2026

Transcorporal Artificial Urinary Sphincter Cuff Placement in a Case Requiring Revision for Urethral Atrophy
03:25

Transcorporal Artificial Urinary Sphincter Cuff Placement in a Case Requiring Revision for Urethral Atrophy

Published on: June 16, 2022

1.5K
Reconstitution Of β-catenin Degradation In Xenopus Egg Extract
09:41

Reconstitution Of β-catenin Degradation In Xenopus Egg Extract

Published on: June 17, 2014

12.5K
Surgical Correction for Pediatric Epiblepharon and Trichiasis
03:59

Surgical Correction for Pediatric Epiblepharon and Trichiasis

Published on: July 8, 2025

698

Area of Science:

  • Pulmonary Medicine
  • Immunology
  • Molecular Diagnostics

Background:

  • Sarcoidosis and tuberculosis share overlapping clinical and radiological features, complicating differential diagnosis.
  • Accurate differentiation is crucial for appropriate treatment and patient management.
  • Current diagnostic methods can be invasive or lack specificity.

Purpose of the Study:

  • To identify and validate distinct blood-based transcriptional signatures for sarcoidosis, sarcoid-like reactions, and tuberculosis.
  • To assess the diagnostic utility of these signatures in differentiating these conditions.

Main Methods:

  • Gene expression profiling of peripheral blood samples from patients with confirmed sarcoidosis, tuberculosis, and controls.
  • Bioinformatic analysis to identify differentially expressed genes and develop diagnostic signatures.
  • Validation of identified signatures in an independent patient cohort.

Main Results:

  • Significant differences in blood transcriptional profiles were observed between sarcoidosis and tuberculosis groups.
  • A specific set of genes demonstrated high accuracy in distinguishing sarcoidosis from tuberculosis.
  • Sarcoid-like reactions showed distinct patterns, aiding their differentiation from sarcoidosis.

Conclusions:

  • Transcriptional blood signatures offer a promising, non-invasive approach for diagnosing sarcoidosis and tuberculosis.
  • These molecular signatures can improve diagnostic accuracy and guide clinical decision-making.
  • Further validation is warranted for clinical implementation.