Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Pivot Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Target Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Query: UMLS:C0022104 (
irritable bowel syndrome
)
8,033
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
Significant changes on a standard barium follow-through examination in celiac disease have been determined by comparison with functional changes (
irritable bowel syndrome
), malabsorption without a villous lesion (chronic pancreatitis), and a villous abnormality without malabsorption (dermatitis herpetiformis). Patients with
iron deficiency anemia
formed the control group. Slight jejunal dilatation (26-30 mm) was found in 15% of the celiacs and 17% of the irritable bowel patients. Dilatation in excess of 30 mm and/or effacement of jejunal fold pattern occurred only with an abnormal jejunal biopsy, in 54% of the celiacs and 33% of the dermatitis herpetiformis patients. Patients with malabsorption by itself and 46% of the celiacs could not be distinguished from those with
irritable bowel syndrome
. The concept of a malabsorption pattern is considered invalid, and the diagnosis of celiac disease can be reliably established only by peroral jejunal biopsy.
...
PMID:Relevance of the barium follow-through examination in the diagnosis of adult celiac disease. 55 35
A 17 year old male suffered from iron deficiency of undetermined cause for 2 years. Iron substitution was able to correct it for short periods. With the exception of fatigue and recurring abdominal pain attributed to oral iron therapy no further symptoms were present. The physical status on admission was unremarkable. The laboratory detected intestinal disorders, an anemia of the chronic type without evidence for malignancy or renal failure suggested an inflammatory gastro-intestinal disorder. In spite of a twice negative noninvasive test for gluten-intolerance the clinician favored in his differential diagnosis non tropical sprue over inflammatory bowel disease (
IBD
, Crohn's disease, Whipple's disease). Histopathology of small bowel specimens did not indicate sprue. An ileo-colonoscopy revealed severe ulcerating ileitis and mild chronic colitis. The histologic specimen revealed a severe ileal inflammation with cosinophilia and the colon specimens epitheloid microgranuloma. These findings are highly compatible with the diagnosis of Crohn's disease.
Iron deficiency anemia
is common in Crohn's disease. In the current case it is due to disturbed iron uptake.
Iron deficiency anemia
as sole symptom of Crohn's disease is extremely rare.
...
PMID:[Severe chronic iron deficiency in a 17-year-old student]. 962 33
Following the application of simple serological tests for the diagnosis of coeliac disease (CD) in the 1980s, it gradually became clear that the prevalence of CD in different countries in the Middle East, North Africa and India is almost the same as that in Western countries. The prevalence of CD in at-risk populations in these regions is reported to range between 3 and 20% and the prevalence in people with type 1 diabetes is approximately 3-5%. Clinical manifestations of CD vary markedly with age, the duration and the extent of disease. Clinical studies showed that presentation with non-specific symptoms or no symptoms is as common in the Middle East as it is in Europe. Wheat has been the major staple food in these regions for many centuries and it is possible that the continuous and high level of exposure to wheat proteins has induced some degree of immune tolerance, leading to milder symptoms, which are misdiagnosed as
irritable bowel syndrome
or unexplained gastrointestinal disorders. A high index of suspicion for CD should be maintained in all developing countries for patients who present with chronic diarrhoea or
iron deficiency anaemia
. The best method for diagnosing CD in patients with diarrhoea is the panel of coeliac serological tests followed by small-bowel biopsy. In the absence of supplies for a gluten-free diet in Middle Eastern countries, maintaining this diet represents a real challenge to both patients and clinicians.
...
PMID:Coeliac disease in developing countries: Middle East, India and North Africa. 1592 41
Anemia is a frequent extraenteric complication of inflammatory bowel disease (
IBD
, Crohn's disease and ulcerative colitis). A systematic review of the literature shows that the overall prevalence of anemia ranges from 8.8% to 73.7% but differs whether in a setting of Crohn's disease or ulcerative colitis. A disabling complication of
IBD
, anemia worsens the patient's general condition and quality of life, and increases hospitalization rates. Different factors, including vitamin B12 and folic acid deficiency, bone marrow suppression secondary to drug therapy, autoimmune hemolytic anemia and the coexistence of myelodysplastic syndromes are involved in the pathogenesis of anemia in
IBD
. The main types of anemia in
IBD
are
iron deficiency anemia
and anemia accompanying chronic diseases. Correct diagnostic definition of anemia is a fundamental step in guiding the choice of therapeutic options, since the co-presence of different pathogenetic factors may sometimes require a more complex treatment plan. A review of anemia in
IBD
, its pathogenetic features, epidemiology, diagnosis and therapy based on evidence from recent studies is the focus of this article.
...
PMID:Anemia in inflammatory bowel disease. 1697 72
Anaemia is the most frequent extraenteric complication of inflammatory bowel disease (
IBD
, Crohn's disease and ulcerative colitis). A disabling complication of
IBD
, anaemia worsens the patient's general condition and quality of life, and increases hospitalization rates. The main types of anemia in
IBD
are
iron deficiency anemia
and anemia of chronic disease. The combination of the serum transferrin receptor with ferritin concentrations and inflammatory markers allows a reliable assessment of the iron status. Iron deficiency is usually treated with oral iron supplements. However, it is less effective in
IBD
and may lead to an increased inflammatory activity through the generation of reactive oxygen species. A systematic review of anemia in
IBD
, its pathogenetic features, epidemiology, diagnosis and therapy based on the evidence from recent studies will be the focus of this article.
...
PMID:[Pathophysiological-based diagnosis and therapy of iron-deficient anaemia in inflammatory bowel disease]. 1919 27
Ulcerative colitis is a chronic inflammatory disorder causing mucosal inflammation of the colorectum with crypt abnormality on biopsy. It affects the rectum and a variable extent of the colon in continuity. Ulcerative colitis is characterized by a relapsing and remitting course. It arises from an interaction between genetic and environmental factors, but the precise etiology is unknown. The incidence and prevalence in Korea are still low compared with those of Western countries, but have increased in recent years. There are many challenging issues on the diagnosis of ulcerative colitis, and sometimes these lead to differences in practice between clinicians. Therefore,
IBD
Study Group of KASID set out the Korean diagnostic guideline of ulcerative colitis. The diagnosis is based on clinical, endoscopic, radiologic, and histologic criteria. The symptoms are dependent upon the extent and severity of disease and most commonly include bloody diarrhea, rectal bleeding, and/or urgency. The systemic symptoms of malaise, tachycardia, fever, or weight loss are features of a severe attack. The laboratory findings may reveal leucocytosis, thrombocytosis,
iron deficiency anemia
, hypoalbuminemia, and elevated erythrocyte sedimentation rate and C-reactive protein indicating severe disease activity or chronicity. For the elimination of infectious causes, microbial investigation with stool specimens should be performed for common enteric pathogens including assays for Clostridium difficile toxin, and sometimes for amoeba or other parasites. The most typical endoscopic features are continuous, confluent, and concentric colonic involvement proximal to the anal verge. Endoscopic severity may be best well reflected by the presence of mucosal friability, spontaneous bleeding, and deep ulcerations. Typical pathologic findings are composed of widespread crypt architectural distortion (cryptitis, crypt abscess, and crypt atrophy), heavy, diffuse lamina propria cell infiltration, and basal plasmacytosis.
...
PMID:[Diagnostic guideline of ulcerative colitis]. 1983 17
Anemia is the most prevalent extraintestinal complication of
IBD
. It can affect quality of life and ability to work, and can also increase the hospitalization rate in patients with
IBD
. Although the causes of anemia in
IBD
are multifactorial,
iron deficiency anemia
(
IDA
) is the most common. Assessment of the iron status of patients who have a condition associated with inflammation, such as
IBD
, by using common biochemical values is insufficient. However, new indices of iron metabolism (for instance ferritin:transferrin receptor ratio, reticulocyte hemoglobin content or percentage of hypochromic red blood cells) may help to improve the assessment of iron status in patients with
IBD
. The treatment of
IDA
traditionally involves oral iron supplementation. However, because of extensive gastrointestinal adverse effects, and data showing that the use of oral iron in
IBD
may be associated with disease exacerbation, current guidelines suggest that iron supplementation in
IBD
should be administered intravenously. This Review provides an overview of iron homeostasis in health before discussing diagnostic and therapeutic strategies for
IDA
in patients with
IBD
.
...
PMID:Diagnosis and management of iron deficiency anemia in patients with IBD. 2092 67
Constipation is traditionally defined as three or fewer bowel movements per week. Risk factors for constipation include female sex, older age, inactivity, low caloric intake, low-fiber diet, low income, low educational level, and taking a large number of medications. Chronic constipation is classified as functional (primary) or secondary. Functional constipation can be divided into normal transit, slow transit, or outlet constipation. Possible causes of secondary chronic constipation include medication use, as well as medical conditions, such as hypothyroidism or
irritable bowel syndrome
. Frail older patients may present with nonspecific symptoms of constipation, such as delirium, anorexia, and functional decline. The evaluation of constipation includes a history and physical examination to rule out alarm signs and symptoms. These include evidence of bleeding, unintended weight loss,
iron deficiency anemia
, acute onset constipation in older patients, and rectal prolapse. Patients with one or more alarm signs or symptoms require prompt evaluation. Referral to a subspecialist for additional evaluation and diagnostic testing may be warranted.
...
PMID:Diagnostic approach to chronic constipation in adults. 2184 77
Chronic diarrhea, defined as a decrease in stool consistency for more than four weeks, is a common but challenging clinical scenario. It can be divided into three basic categories: watery, fatty (malabsorption), and inflammatory. Watery diarrhea may be subdivided into osmotic, secretory, and functional types. Watery diarrhea includes
irritable bowel syndrome
, which is the most common cause of functional diarrhea. Another example of watery diarrhea is microscopic colitis, which is a secretory diarrhea affecting older persons. Laxative-induced diarrhea is often osmotic. Malabsorptive diarrhea is characterized by excess gas, steatorrhea, or weight loss; giardiasis is a classic infectious example. Celiac disease (gluten-sensitive enteropathy) is also malabsorptive, and typically results in weight loss and
iron deficiency anemia
. Inflammatory diarrhea, such as ulcerative colitis or Crohn disease, is characterized by blood and pus in the stool and an elevated fecal calprotectin level. Invasive bacteria and parasites also produce inflammation. Infections caused by Clostridium difficile subsequent to antibiotic use have become increasingly common and virulent. Not all chronic diarrhea is strictly watery, malabsorptive, or inflammatory, because some categories overlap. Still, the most practical diagnostic approach is to attempt to categorize the diarrhea by type before testing and treating. This narrows the list of diagnostic possibilities and reduces unnecessary testing. Empiric therapy is justified when a specific diagnosis is strongly suspected and follow-up is available.
...
PMID:Evaluation of chronic diarrhea. 2208 67
The present study is to determine the prevalence and implication of coeliac disease (CD) among adult Saudis and compared to those with diagnosed
irritable bowel syndrome
. This prospective study was conducted among 980 adults. Out of that, 482 subjects (staff and students of Riyadh Health Science College) were designated as control cohorts for undetected coeliac disease. Furthermore, another contingent of 498 subjects diagnosed with
irritable bowel syndrome
(
IBS
) at Prince Salman Hospital and Al-Iman General Hospital also constituted a segment of the overall initial 1020 subjects. Both cases and control were tested for serological markers of coeliac disease (tissues transglutaminase (tTGAs) and endomysial autoantibody (EMAs) and were confirmed by histopathology test. All the positive for cases of coeliac disease were screened for
iron deficiency anaemia
, Vitamin D deficiency, and osteoporosis and weight assessment. The percentage of coeliac disease in control subjects and patients diagnosed with
irritable bowel syndrome
(
IBS
) were found to be 1.9% and 9.6% respectively, about 38% of the total coeliac disease patients are among females of middle age (20-39-years) and 16% of the males in the same age range. Whereas, 20% and 25% of all coeliac disease cases with ages of 40-59 were remarked as females and males respectively. The identical nature and overlap of symptoms of the two conditions could possibly result in misdiagnosis of coeliac diseases or over-diagnosis of
irritable bowel syndrome
. The findings of the study might also give considerable implications of the disease in the nutritional level which is noticeable.
...
PMID:Screening of coeliac disease in undetected adults and patients diagnosed with irritable bowel syndrome in Riyadh, Saudi Arabia. 2729 78
1
2
Next >>