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

Bacterial Phylum Chlamydiae01:29

Bacterial Phylum Chlamydiae

686
The phylum Chlamydiae or Chlamydiota is composed of a single order, Chlamydiales. This phylum consists entirely of obligate intracellular parasites that infect eukaryotic hosts. While human pathogens within this group have been studied extensively, the phylum encompasses many species capable of interacting with various eukaryotic organisms. Members of Chlamydiae are typically small cocci, approximately 0.5 μm in diameter, and exhibit a distinctive developmental cycle. As is characteristic...
686
Skin Diseases and Disorders01:23

Skin Diseases and Disorders

6.0K
Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
6.0K
Sexually Transmitted Infections01:26

Sexually Transmitted Infections

1.5K
Sexually transmitted infections (STIs) are diseases transmitted primarily through unsafe sexual interactions. Bacteria, viruses, or parasites cause them and can result in severe health complications if untreated.ChlamydiaThe bacterium Chlamydia trachomatis is responsible for the disease Chlamydia, the most common STI in the United States. This peculiar pathogen requires human cells to reproduce, residing intracellularly. The initial infection often goes unnoticed because it typically does not...
1.5K
Channel Rhodopsins01:11

Channel Rhodopsins

3.4K
Most organisms use photoreceptors to sense and respond to light. Examples of photoreceptors include bacteriorhodopsins and bacteriophytochromes in some bacteria, phytochromes in plants, and rhodopsins in the photoreceptor cells of the vertebral retina. The light-sensitive property of these receptors is because of the bound chromophores, such as bilin in the phytochromes and retinal in the rhodopsins.
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...
3.4K
Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

10.5K
At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
10.5K
Drug Toxicity: Allergic Reactions01:30

Drug Toxicity: Allergic Reactions

89
Drug-related allergies are immune-mediated responses triggered by the administration of pharmacological agents. These hypersensitivity reactions are classified based on the immune mechanisms involved. The four primary types—Type I, II, III, and IV—are mediated by different immunological pathways and exhibit distinct clinical manifestations.Type I Hypersensitivity/ IgE-Mediated Reactions: Immunoglobulin E (IgE) immediately mediates Type I hypersensitivity reactions. Upon initial...
89

You might also read

Related Articles

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

Sort by
Same author

Categorizing E-cigarette-related tweets using BERT topic modeling.

Emerging trends in drugs, addictions, and health·2025
Same author

Quantitative evaluation of recto-prostatic distance before and after SpaceOAR hydrogel placement.

Clinical radiology·2025
Same author

Spatial assessment, mapping, and characterization of salt-affected soils in Uttar Pradesh state of the Gangetic plain (IGP), India, for planning reclamation and management.

Environmental monitoring and assessment·2025
Same author

Optimized AAV capsids for basal ganglia diseases show robust potency and distribution.

Nature communications·2025
Same author

Outcomes of patients with relapsed/refractory lymphoplasmacytic lymphoma/waldenström macroglobulinemia treated with venetoclax: a multicenter retrospective analysis.

Blood cancer journal·2025
Same author

Measurable residual disease (MRD) dynamics in multiple myeloma and the influence of clonal diversity analyzed by artificial intelligence.

Blood cancer journal·2024
Same journal

Tuberculosis verrucosa cutis: An easy spotter yet frequently missed!

Medical journal, Armed Forces India·2026
Same journal

Non-Hodgkin lymphoma arising in a vallecular cyst: A rare clinical entity.

Medical journal, Armed Forces India·2026
Same journal

Utility of pre-operative magnetic resonance imaging (pelvis and abdomen) and combined tumour markers HE4 and CA125 in diagnosing early and advanced carcinoma endometrium.

Medical journal, Armed Forces India·2026
Same journal

Endoscopic management of Zenker's diverticulum.

Medical journal, Armed Forces India·2026
Same journal

Epithelial ingrowth post small incision lenticule extraction: CIRCLE software to the rescue.

Medical journal, Armed Forces India·2026
Same journal

Colistin rapid NP test for detection of colistin-resistance in colistin-resistant enterobacterales.

Medical journal, Armed Forces India·2026
See all related articles

Related Experiment Video

Updated: Mar 14, 2026

Using Fluorescent Proteins to Visualize and Quantitate Chlamydia Vacuole Growth Dynamics in Living Cells
07:42

Using Fluorescent Proteins to Visualize and Quantitate Chlamydia Vacuole Growth Dynamics in Living Cells

Published on: October 13, 2015

8.0K

Chlamydia trachomatis Infection and Photosensitive Dermatoses.

Mps Sawhney1, S Arora2, A Khetrapal3

  • 1Senior Advisor (Dermatology & STD), Base Hospital, Delhi Cantt.

Medical Journal, Armed Forces India
|October 1, 2016
PubMed
Summary
This summary is machine-generated.

Chlamydia trachomatis infection is linked to photosensitive dermatoses like melasma and chronic actinic dermatitis in non-LGV cases. Investigating C. trachomatis is recommended for these conditions.

Keywords:
Actinic prurigoChlamydia trachomatisChronic actinic dermatitisMelasmaPhotosensitivityPolymorphic light eruptionsRosacea

More Related Videos

Forward Genetic Approaches in Chlamydia trachomatis
09:03

Forward Genetic Approaches in Chlamydia trachomatis

Published on: October 23, 2013

13.3K
Live-Cell Forward Genetic Approach to Identify and Isolate Developmental Mutants in Chlamydia trachomatis
10:32

Live-Cell Forward Genetic Approach to Identify and Isolate Developmental Mutants in Chlamydia trachomatis

Published on: June 10, 2020

4.6K

Related Experiment Videos

Last Updated: Mar 14, 2026

Using Fluorescent Proteins to Visualize and Quantitate Chlamydia Vacuole Growth Dynamics in Living Cells
07:42

Using Fluorescent Proteins to Visualize and Quantitate Chlamydia Vacuole Growth Dynamics in Living Cells

Published on: October 13, 2015

8.0K
Forward Genetic Approaches in Chlamydia trachomatis
09:03

Forward Genetic Approaches in Chlamydia trachomatis

Published on: October 23, 2013

13.3K
Live-Cell Forward Genetic Approach to Identify and Isolate Developmental Mutants in Chlamydia trachomatis
10:32

Live-Cell Forward Genetic Approach to Identify and Isolate Developmental Mutants in Chlamydia trachomatis

Published on: June 10, 2020

4.6K

Area of Science:

  • Dermatology
  • Infectious Diseases
  • Immunology

Background:

  • Photosensitivity is common in Lymphogranuloma Venereum (LGV) caused by Chlamydia trachomatis serovars L1-L3.
  • The role of C. trachomatis in photosensitive dermatoses unrelated to LGV remains understudied.

Purpose of the Study:

  • To investigate the association between C. trachomatis infection and various photosensitive dermatoses in non-LGV cases.
  • To determine if C. trachomatis antibodies are present in patients with photosensitivity, melasma, chronic actinic dermatitis (CAD), polymorphic light eruption (PLE), actinic prurigo (AP), and rosacea.

Main Methods:

  • Sera from patients with photosensitive dermatoses and healthy controls were tested for IgM, IgG, and IgA antibodies to C. trachomatis using ELISA.
  • Statistical analysis, including chi-squared tests, was employed to compare seropositivity rates.

Main Results:

  • Significantly higher seropositivity for C. trachomatis antibodies was found in patients with photosensitivity (25.53%), melasma (25.53%), and CAD (46.15%) compared to controls.
  • While higher seropositivity was noted in rosacea and PLE cases, the differences were not statistically significant.
  • No association was found between C. trachomatis infection and actinic prurigo.

Conclusions:

  • C. trachomatis infection is a significant cause of photosensitivity, melasma, and CAD in non-LGV cases.
  • The findings suggest C. trachomatis may also contribute to rosacea and PLE.
  • Investigation for C. trachomatis infection is recommended for patients diagnosed with photosensitivity, melasma, CAD, PLE, and rosacea, as well as their sexual contacts.