IBD Correlates with Stress Quiz

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58 Questions

Which of the following is NOT a proposed etiology underlying the development of inflammatory bowel disease (IBD)?

Autoimmune factors

What is the bimodal distribution of age in IBD cases?

Adolescents and young adults

Which genetic polymorphism is involved in pathogen recognition and increases the risk of Crohn’s disease by up to 40 times?

NOD2

What factor potentially leads the gastrointestinal tract to lose tolerance to normal flora in inflammatory bowel disease?

Dysbiosis

What region has the highest incidence rate of ulcerative colitis (UC)?

Northern Europe

What percentage of patients on chronic corticosteroids require surgery within 1 year?

38%

What is a common extraintestinal manifestation of IBD?

Joint pain

Which of the following is NOT a lifestyle-related etiology of IBD according to the text?

Antibiotics

What is a potential severe complication of Ulcerative Colitis?

Toxic megacolon

What is a consequence of the breakdown of the intestinal wall and epithelial barrier in the context of inflammatory bowel disease?

Increased susceptibility to microbiome

Which of the following is a common clinical feature of both Ulcerative Colitis and Crohn's Disease?

Rectal bleeding

What diagnostic test is commonly used to visualize the colon in patients with suspected IBD?

CT abdomen

Which cell type plays a role in inducing cell-mediated immunity in Crohn’s disease?

Th1 cells

Which of the following is NOT an extraintestinal manifestation associated with IBD?

Anemia

What is a common feature of inflammatory bowel disease (IBD) related to cytokine dysregulation?

Elevated levels of various cytokines

Which immune cells are commonly found infiltrating the intestinal epithelium in inflammatory bowel disease?

B and T cells

What effect does a reduction in Paneth cell defensin secretion have on the inflammatory response in the context of IBD?

Enhances inflammatory response

In inflammatory bowel disease, what is a major consequence of prolonged inflammation leading to epithelial injury?

Development of erosions and ulcerations

Which tool is used to determine the severity of Crohn's Disease?

Crohn's Disease Activity Index

What is considered a clinical remission in Crohn's Disease according to the text?

Harvey Bradshaw Index <4

What does systemic toxicity refer to in the context of Crohn's Disease severity?

Fever, rigors

Which imaging technique is considered superior for detecting small bowel pathology?

Video capsule endoscopy

What is considered a key feature that helps differentiate between Ulcerative Colitis (UC) and Crohn's Disease (CD)?

Localized symptoms

In the context of Crohn's Disease, what does a Harvey Bradshaw Index reduction by 3 points indicate?

Clinical response to treatment

What is the main difference in the clinical presentation between Ulcerative Colitis (UC) and Crohn's Disease (CD)?

UC presents with anemia, while CD presents with vitamin deficiencies.

What is a significant difference in the distribution of disease between Distal and Extensive Ulcerative Colitis?

Distal UC is limited to areas distal to the splenic flexure, while Extensive UC involves areas proximal to the splenic flexure.

Which of the following factors is NOT considered a poor prognostic factor for Ulcerative Colitis?

Mild clinical signs/symptoms

What is a characteristic feature of Crohn's Disease when observed endoscopically?

"Cobblestone" appearance

Which diagnostic test plays a crucial role in differentiating between Crohn's Disease and other conditions?

Biopsy

What is the most common clinical presentation in patients with Colonic Crohn's Disease?

Diarrhea and abdominal pain

What is the therapeutic target of Aminosalicylates (ASA)?

Cyclooxygenase, Lipoxygenase, etc.

Which drug class targets Janus kinase family of enzymes (JAKs)?

JAK Inhibitors

What is the key structure targeted by Anti-TNFα antibody drugs?

TNFα

Which drug is a representative of the Antimicrobials drug class?

Metronidazole

What is the therapeutic target of JAK Inhibitors like Tofacitinib and Upadacitinib?

Janus kinase family of enzymes (JAKs)

Which drug class targets α4-integrins?

Immunosuppressants

Which drug class does Mesalamine belong to?

Aminosalicylates (ASA)

What is the key therapeutic target of Infliximab?

TNFα

Which part is considered the most important sub-structure in Ozanimod?

sphingosine-1-phosphate receptor (S1PR)

What is the therapeutic target of Ustekinumab?

IL-12, IL-23

To which drug class do cyclosporine, MTX, and mercaptopurine belong?

Immunosuppressant

Which chemical bond in Sulfasalazine needs to be broken for it to be converted to its active form?

Ester bond

Which of the following enzymes is targeted by Mercaptopurine (6-MP) as a pro-drug?

Hypoxanthineguanine phosphoribosyltransferase (HGPRT)

What is the key therapeutic target of Corticosteroids like Budesonide?

Glucocorticoid receptors

Which molecule do JAK Inhibitors like Tofacitinib target?

Janus kinase family of enzymes (JAKs)

What is the therapeutic target of Anti-TNFα antibodies like Infliximab?

Tumor necrosis factor alpha (TNFα)

In which organ is unformulated mesalamine primarily absorbed?

Small intestine

What is the main focus of learning objectives in the context of IBD medicinal chemistry?

Recognizing key chemical structure features of drug classes for IBD treatment

For a pro-drug used in IBD treatment, how is it typically converted to its active form?

By hydrolysis to release the active compound

In the context of IBD medicinal chemistry, what does a structure-activity relationship refer to?

The interplay between drug structure and its pharmacological activity

Which chapter of Foye’s Principles of Medicinal Chemistry would be most relevant for learning about Tumor Necrosis Factor Blockers?

Chapter 31, Section Immunosuppressants

What aspect of IBD drug metabolism is key in determining potential therapeutic or toxicity responses?

The pathway of biotransformation in the liver

What is the target of Mercaptopurine (6-MP) in drug interactions with other purine analogs?

Dihydrofolate reductase

Which drug class targets Cyclophilin as part of its mechanism of action?

Immunosuppressants

What is the therapeutic target of Sulfasalazine in the context of drug classes?

Multiple targets

Among the following, which drug class inhibits CYP2C9 and CYP3A4?

Antimicrobials

What is the target structure of Ustekinumab among the drug classes mentioned?

IL-12, IL-23

Which key structure is targeted by Ozanimod within the S1P Receptor Modulators drug class?

sphingosine-1phosphate receptor (S1PR)

Test your knowledge about the psychological etiology of stress correlating with IBD flares, as well as the impact of stress reduction on the progression of IBD. Explore the lifestyle, diet, and medication etiologies associated with IBD in this quiz.

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