NURS-6501 Week 10 case study Patient is a 21-year-old female with no medical history. She reports vaginal discomfort and discharge for approximately 3 days.

NURS-6501 Week 10 case study Patient is a 21-year-old female with no medical history. She reports vaginal discomfort and discharge for approximately 3 days.

Case Study Analysis

This is the case study of a 21-year-old female who denies the presence of any previous medical or surgical history. She admits to being sexually active and at present has a partner with whom she started an intimate relationship two months ago. She is on contraceptive pills for birth control but currently presents with a complaint of vaginal discharge accompanied by vaginal discomfort for about three days now. The laboratory tests conducted show that she is not pregnant. Most importantly, a cervical swab taken for a polymerase chain reaction or PCR test returned positive for
Chlamydia trachomatis
. This is the bacterium that causes the sexually transmitted infection (STI) chlamydia (Jameson et al., 2022). It is a gram-negative intracellular anaerobe that reproduces within calls that have a nuclear membrane enclosing genetic material (Mohseni et al., 2023). The purpose of this paper is to answer questions related to the above case study.

The Pathophysiology of Chlamydia

As has been pointed out above,
C. trachomatis
 is gram-negative. It is can also only survive inside cells which it infects. These cells include those of the cervical epithelium, endometrium, and urethra in men amongst others (Mohseni et al., 2023). But the bacterium is also an obligate anaerobe. This means that it can only survive in environments that are devoid of oxygen. It thus differs significantly from facultative anaerobes such as
Pseudomonas aeruginosa
 in that these others can create energy n the form of adenosine triphosphate (ATP) with or without oxygen (Jameson et al., 2022). The pathophysiology of
C. trachomatis
 therefore occurs intracellular.

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After infection is contracted through contact with infected bodily fluids through sex (oral, vaginal, or anal) or passage through the birth canal for a newborn, epithelial cells in the cervix, uterus, Fallopian tubes, urethra (in men), or conjunctiva are invaded (Jury et al., 2023; Sturd & Rucks, 2023). The bacterium then takes over the resources within the cells and uses them to reproduce and release even more bacteria to infect more epithelial cells. In females such as in this case study; symptoms such as vaginal discharge, painful coitus, and lower abdominal pain will ensue.

Intracellular Development of Chlamydia

The intracellular development of chlamydia begins when the primary morphological form referred to as the elementary body or EB enters the cell. This is the infectious form of the bacterium which also does not replicate. However, it differentiates once inside the cell to the replicative and non-infectious form referred to as the reticulate body or RB (Sturd & Rucks, 2023). The RBs continue their differentiation and replicate to form new EBs that are released so that they can infect new epithelial cells.

Two Forms of Chlamydia

Morphologically, there are two basic forms of the bacterium
Chlamydia trachomatis
 (Sturd & Rucks, 2023). These are the elementary body (EB) and the reticulate body (RB). As already stated, the former is infectious and does not reproduce, whereas the latter is the infectious form and replicates to form new infectious forms of EB.

Immune Evasion

According to Sturd and Rucks (2023), the EBs and RBs evade the detection of the host’s immune system through what are known as the inclusion membrane proteins (Incs). These act as intracellular mediators of metabolic pathways that inhibit any host defence mechanisms that may be activated to fight the invading bacterial molecules.

Host’s Response to Infection

Because of the deterrent activity of the Incs on the host’s immune mechanisms, the host’s response to infection is severely limited in the case of
C. trachomatis
. This explains why a big percentage of those who are infected by this bacterium are usually asymptomatic. When response is present, females produce an abnormal vaginal discharge. The lymph nodes may also be affected causing inflammation and lymphogranuloma venereum (Jury et al., 2023; Mohseni et al., 2023; Sturd & Rucks, 2023). Other responses include the development of trachoma and eventual blindness if not treated well.

Pathogen Recognition Receptors

If the host’s immune response succeeds in evading the suppressing power of the Incs, the available pathogen recognition receptors within the cells are of two types. These are the ones that will detect the bacterium and initiate the inbuilt immune reaction. They are the TLRs (Toll-like receptors) and the NLRs or NOD-like receptors (Chen et al., 2019). These receptors enable the disease to show its signs and symptoms, as pro-inflammatory mediators (below) are released. NURS-6501 Week 10 case study Patient is a 21-year-old female with no medical history. She reports vaginal discomfort and discharge for approximately 3 days.

Pro-inflammatory Cytokines

These pro-inflammatory cytokines are usually produced along with chemokines by the cells that are infected by chlamydial elementary bodies or EBs (Chen et al., 2019). They include tissue necrotic factor alpha (TNF-α) and interleukin 8 (IL-8). According to Chen et al. (2019), the mediators above in the form of cytokines and chemokines cause the aggregation of immune cells where infection has occurred. The outcome is local inflammation and destruction of the local tissues.

The Risk Factors for STIs

The risk factors for STIs include (Jameson et al., 2022; Rodrigues et al., 2022):

Poverty (low socioeconomic status) as a social determinant of health.

Having many sexual partners and not using protection with them.

The use of drugs, alcohol, and illegal substances.

A past history of STIs.

The Potential Complications of Chlamydia

The potential complications of
C. trachomatis
 include (Jameson et al., 2022; Mohseni et al., 2023; Rodrigues et al., 2022):

Secondary infertility in both men and women.

Reactive arthritis.

Pelvic inflammatory disease o PID in females.

Increased probability of ectopic pregnancy.

Neonatal pneumonia.

Conclusion

The STI known as Chlamydia and caused by the bacterium
C. trachomatis
 is a serious cause of usually asymptomatic morbidity in both men and women. However, when symptoms do occur, healthcare costs increase due to its consequences. Among its far-reaching ones are infertility, newborn morbidity, and blindness due to trachoma amongst others.

References

Chen, H., Wen, Y., & Li, Z. (2019). Clear victory for Chlamydia: The subversion of host innate immunity. Frontiers in Microbiology, 10:1412.
http://dx.doi.org/10.3389/fmicb.2019.01412

Jameson, J.L., Fauci, A.S., Kasper, D.L., Hauser, S.L., Longo, D.L., & Loscalzo, J. (Eds) (2022).
Harrison’s principles of internal medicine, 21
st
 ed
. McGraw-Hill Education.

Jury, B., Fleming, C., Huston, W.M., & Luu, L.D.W. (2023). Molecular pathogenesis of
Chlamydia trachomatis
.
Frontiers in Cellular and Infection Microbiology, 13
(0), 1-12.
https://doi.org/10.3389/fcimb.2023.1281823

Mohseni, M., Sung, S., & Takov, V. (2023). Chlamydia.
National Library of Medicine
.
https://www.ncbi.nlm.nih.gov/books/NBK537286/

Rodrigues, R., Sousa, C., & Vale, N. (2022).
Chlamydia trachomatis
 as a current health problem: Challenges and opportunities.
Diagnostics,
12
(
8), 1795; 
https://doi.org/10.3390/diagnostics12081795

Sturd, N., & Rucks, E.A. (2023). Microbe of the month:
Chlamydia trachomatis
.
Trends in Microbiology, 31
(5), 535-536.
https://doi.org/10.1016/j.tim.2022.11.002

 

NURS-6501 Week 10 case study Patient is a 21-year-old female with no medical history. She reports vaginal discomfort and discharge for approximately 3 days.

Week 10 case study

Patient is a 21-year-old female with no medical history. She reports vaginal discomfort and

discharge for approximately 3 days. She is sexually active and has a new partner within the

last 2 months. She denies fever, nausea or severe pain. The only medication the patient is

taking is birth control.

DIAGNOSTIC:

Cervical swab PCR test is positive for chlamydia trachomatis

Urinalysis –

Color – yellow

Clarity – clear

pH – 7.0

Blood – negative

Nitrites – negative

Leukocytes – negative

POC Pregnancy – neg

Questions:

1. Describe the pathophysiologic process of chlamydia, including the two forms,

intracellular development, and immune evasion.

2. Explain the host’s response to the infection, including pathogen recognition

receptors and proinflammatory cytokines.

3. Explain the risk factors for STDs.

4. Explain the potential complications of Chlamydia.

Resources

CDC – https://www.cdc.gov/chlamydia/about/index.html

WHO – https://www.who.int/news-room/fact-sheets/detail/chlamydia

UTF-8Molecular level pathophys Chlamydia

NURS-6501 Week 10 case study Patient is a 21-year-old female with no medical history. She reports vaginal discomfort and discharge for approximately 3 days.