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Macrocytosis

Comparison of normoblast and megaloblastWhat Is Macrocytosis?

Macrocytosis is a blood cell disorder characterized by altered blood cell formation that results in abnormally large erythrocytes (red blood cells) circulating in the bloodstream.

The mean corpuscular volume (MCV), which is a measure of the size of red blood cells in the bloodstream, is greater than 100 fL as shown in a complete blood count (CBC) laboratory analysis report.

Macrocytosis produces macrocytic anemias that are classified as megaloblastic or non-megaloblastic:

  1. Megaloblastic anemias result from disorders of DNA synthesis of red blood cell precursors (megaloblasts) in bone marrow due to B vitamin deficiency demonstrated by macro-ovalocytes and hypersegmented neutrophils.1
  2. Non-megaloblastic anemias are or those caused primarily by alcoholism, liver disease and hypothyroidism.2

What Is Macrocytosis In Celiac Disease and/or Gluten Sensitivity?

Sources:
  1. Kaferle J, Strzoda CE.Evaluation of macrocytosis. Am Fam Physician. 2009 Feb 1;79(3):203-8. [↩]
  2. Davenport J. Macrocytic anemia. Am Fam Physician. 1996 Jan;53(1):155-62. [↩]

Bruising, Easy (Ecchymosis)

Photo showing resolving deep bruise on the thigh.
Photo showing resolving deep bruise on the thigh.

What Is Easy Bruising?

Ecchymosis, or easy bruising, is a feature of impaired secondary hemostasis (blood clotting) characterized by subcutaneous bleeding (under the skin) in response to light trauma.

Q: What causes easy bruising?

A: Easy bruising is the direct result of vitamin K deficiency that develops from inadequate diet, malabsorption, dysbiosis, and vitamin K depleting medications.

What Is Easy Bruising In Celiac Disease and/or Gluten Sensitivity?

Edema of the Small Intestine

Intestinal Edema in an 11 Month Old Baby. Courtesy: Nature.com
Intestinal Edema of Duodenum in an 11 Month Old Baby. Courtesy: Nature.com

What Is Small Intestinal Edema?

Small intestinal edema is characterized by fluid accumulation within the intestinal mucosa so that the intestinal wall appears thick and swollen.

Intestinal edema hampers peristalsis that can result in pain and gas build-up. Peristalsis is the normal rhythmic muscular wave-like action that moves residue along the gastrointestinal tract.

Q: What part of the small intestinal lining is swollen?

A: Any part of the small intestine may be affected. Some causes of edema include allergic reactions, enteropathies such as celiac disease, cow milk enteropthy, yeast infection, parasite infection, inflammatory bowel disease such as Crohn’s disease, and certain medications.

For example, the anti-hypertensive drugs known as Angiotension Converting Enzyme (ACE) inhibitors can cause intestinal angioedema and therefore the patient may present with gastrointestinal complaints.1

What Is Small Intestinal Edema In Celiac Disease and/or Gluten Sensitivity?

Sources:
  1. LoCascio E J,  Mahler  S A, and  Arnold TC. Intestinal Angioedema Misdiagnosed as Recurrent Episodes of Gastroenteritis. West J Emerg Med. Sep 2010; 11(4): 391–394. [↩]

Cachexia

Cachexia with Wasted Muscles, Weakness, and That Developed over 3 Years Time.
Cachexia with Wasted Muscles, Weakness, Weight Loss, Anemia, Skin Hemorrhages, Anorexia. GFW

What Is Cachexia?

Cachexia is a state of ill health involving deteriorating body composition that is characterized by general malnutrition and loss of lean tissue such as muscle.

Q: What are typical findings in cachexia?

A: Arm muscle triceps (the muscles at the back of the upper arm), skin folds, subscapular skin folds, fat area index, and bone mineral content are significantly lower than normal.

Cachexia may develop in protein-losing enteropathy such as celiac disease, chronic or severe infection such as pneumonia, tuberculosis, malaria, or many chronic diseases such as heart failure and cancer.

Cachexia can develop in persons of any age.

What Is Cachexia In Celiac Disease and/or Gluten Sensitivity?

Lactose Intolerance

Lactose IntoleranceWhat Is Lactose Intolerance?

Lactose intolerance is a well known symptom of carbohydrate malabsorption characterized by inability to properly digest lactose, the sugar in milk, due to low lactase digesting activity in the small intestine.

Lactase is an enzyme produced by specialized cells in the tips of villi within the brush border of the small intestinal lining that digests lactose.

Lactose is a disaccharide, or double sugar, made up of a molecule of glucose and a molecule of galactose (simple sugars). Lactose cannot be absorbed as is into the body unless it is broken down by lactase into glucose and galactose.

Q: How does lactose cause diarrhea?

A: If lactose is not broken down, undigested lactose moves into the colon where it acts osmotically to draw water from the walls of the colon into the lumen, which causes diarrhea by the unnatural amount of water. How much water? Can be 2 liters! Meanwhile, the normal population of colonic bacteria ferment the undigested lactose, generating short-chain fatty acids and hydrogen gas, resulting in bloating pain and flatulence.

Testing for intolerance is based on the action of lactose to increase intestinal permeability.1 Positive response to a breath hydrogen test (BHT), involving 1 – 3 hours of time post ingestion of lactose test dose, signifies malabsorption in the small intestine and fermentation in the colon. If BHT is positive before 60 minutes, the result implies bacteria is abnormally present in the small intestine, causing fermentation there.

Endoscopy is used to measure activity of lactase in a tissue sample.

Treatment is avoidance of milk and dairy products that contain lactose. Nevertheless, milk treated with lactase enzyme can be safely consumed. Fermented milk products like yogurt or kefir are safe because the lactose has been digested by organisms. If there is also a problem with milk protein, then no milk is acceptable that comes from the cow or animal that is causing the allergy.

What Is Lactose Intolerance In Celiac Disease and/or Gluten Sensitivity?

Sources:
  1. Farhadi A, Banan A, Fields J, Keshavarzian A. Intestinal barrier: an interface between health and disease. Journal of Gastroenterology and Hepatology. 2003;18:479-91. [↩]

Anorexia or Loss of Appetite

anorexia nervosa celiac disease gluten symptomWhat Is Anorexia?

Anorexia or loss of appetite is a reduced desire to eat which can cause unintentional weight loss.

Anorexia is a feature of many disorders caused by malutrition such as celiac disease and aging or gastrointestinal problems such as chronic gastroenteritis, and dysgeusia (loss of taste).

Q: Are there other conditions that cause anorexia?

A: Other underlying problem include medication side effects, infection, chronic pain, depression, grief, dehydration, hormonal dysfunction such as thyroid disease, primary hyperparathyroidism, or Addison’s disease, autoimmune mechanisms such as sarcoidosis,  and cancer growth.

What Is Anorexia In Celiac Disease and/or Gluten Sensitivity?

Maltose Intolerance

Fermentation of Grain by Yeast Releases Carbon Dioxide Which rises the Dough. Courtesy Johnson Mathey Catalyst
Bread is a Major Source of Maltose. Courtesy Johnson Mathey Catalyst

What Is Maltose Intolerance?

Maltose intolerance is an enzymopathy (enzyme failure) characterized by inability of the gut to properly break down maltose sugar molecules in food due to low maltase enzyme activity of the small intestinal lining.

Q: What is maltose and maltase?

A: Maltose is a double sugar made up of two molecules of glucose and is derived from starch. Maltase is the enzyme required to digest or release glucose from maltose. Maltase is produced in the microscopic brush border (microvilli) at the base of villi.

Here’s what happens when maltose is not digested:

  • Undigested maltose cannot be absorbed into the body but remains inside the small intestine where it acts osmotically to draw an unnatural amount of water from the body into the intestine which produces diarrhea.
  • Additionally, normal gut bacteria ferment the abnormal abundance of unabsorbed maltose, thereby generating an abundance of short-chain fatty acids and hydrogen gas which result in bloating and pain.1
  • Positive response to a breath hydrogen test (BHT), involving 1 – 3 hours of time post ingestion of maltose test dose, signifies malabsorption in the small intestine and fermentation in the colon. If BHT is positive before 60 minutes, the result implies bacteria is abnormally present in the small intestine, causing fermentation there.

What Is Maltose Intolerance In Celiac Disease and/or Gluten Sensitivity?

Sources:
  1. Krause’s Food, Nutrition, & Diet Therapy. 10th Edition. Kathleen Mahan, Sylvia Escott-Stump. 2000. W.B. Saunders Company. [↩]

Hyperprolactinemia (Excess Prolactin Hormone)

Prolactin Structure. Courtesy Boris TM at Wikipedia.
Prolactin Structure. Courtesy Boris TM at Wikipedia.

What Is Hyperprolactinemia?

Hyperprolactinemia is an excess secretion of prolactin hormone causing an elevated blood level that is characterized by its effects on reproduction: in females causing  amenorrhea and in males causing reduced sexual potency.

Q: What is prolactin?

A: Prolactin is a hormone produced by the the anterior pituitary gland that is transported by the bloodstream to stimulate androgen hormone production in male and estrogen hormone production in female sex glands. However, too much prolactin inhibits hormone production of estrogen in women and testosterone in men.

In pregnant females upon delivery of a baby, prolactin stimulates breast development and milk production for the purpose of feeding the infant. Sucking by the infant stimulates the release of prolactin which keeps the milk supply adequate.

Prolactin also promotes autoimmune mechanisms. Prolactin interferes specifically with B cell tolerance induction, enhances proliferative response to antigens and mitogens and increases the production of immune globulins, cytokines and autoantibodies.1

Other conditions that can stimulate prolactin release include nutritional deficiencies, thyroid stimulating hormone (TSH) produced by the pituitary gland, stress, exercise, and anterior pituitary tumors.

What Is An Elevated Prolactin Level In Celiac Disease and/or Gluten Sensitivity?

Sources:
  1. Shelly S, Boaz M, Orbach H. Prolactin and autoimmunity. Autoimmun Rev. 2012 May;11(6-7):A465-70. doi: 10.1016/j.autrev.2011.11.009. [↩]

Hangnail: definition

vitamin c gluten celiac disease symptomWhat Is Vitamin C?

V itamin C, also called ascorbic acid or ascorbate, is an essential water soluble vitamin.

Fresh supplies of vitamin C are required every day to perform vital roles throughout the body among which are the production of connective tissue such as skin, blood vessels and bone, anti-inflammatory responses and anti-oxidant performance. See below for all roles.

Vitamin C fights for us! It has an anti-cancer effect stemming from its role as a potent anti-oxidant in blood plasma and within cells. It also protects nucleic acids (DNA) from oxidative damage and inhibits the formation of nitrosamines (carcinogenic compounds formed in the digestive tract).

Importantly, vitamin C can regenerate vitamin E from an oxidized state after vitamin E performs its own anti-oxidant role against free radicals and vitamin C works together with other anti-oxidants, such as beta-carotene and glutathione, to increase their overall anti-oxidant effect.

A study investigating the specific anti-inflammatory and anti-oxidant micronutrients that reduce oxidative stress found that in adolescents with metabolic syndrome (MetS) the lower the vitamin C level in blood the worse the MetS status and blood uric acid level.  MetS prevalence was estimated at 7% among boys and 3% among girls.1

Vitamin C reverses osteoporosis by reducing or preventing oxidative stress that destroys living bone tissue. Osteoporosis is a disorder of bone inflammation that results in thin, weak bones that may easily fracture. In normal bone structure, vitamin C is required to form collagen, which is living bone tissue.

In humans, vitamin C reduces the duration of common cold symptoms, even if its effect is not clear.2

Vitamin C must be obtained from food daily because our bodies, unlike monkeys and other animals, cannot produce it.

Urinary excretion of vitamin C cannot be detected when vitamin intake is below the required levels. On the other hand, when intake exceeds saturation in the body, the vitamin and/or its metabolites are actively excreted into urine to prevent excessive toxicity of the vitamins.3

What Is Vitamin C Deficiency In Celiac Disease and/or Gluten Sensitivity?

Sources:
  1. TGBeydoun MA, Canas JA, Beydoun HA, Chen X, Shroff MR, Zonderman AB. Serum antioxidant concentrations and metabolic syndrome are associated among U.S. adolescents in recent national surveys. J Nutr. 2012 Sep;142(9):1693-704. doi: 10.3945/jn.112.160416. [↩]
  2. Shaik-Dasthagirisaheb YB, Varvara G, Murmura G, Saggini A, Caraffa A, Antinolfi P, Tete’ S, Tripodi D, Conti F, Cianchetti E, Toniato E, Rosati M, Speranza L,Pantalone A, Saggini R, Tei M, Speziali A, Conti P, Theoharides TC, Pandolfi F. Role of vitamins D, E and C in immunity and inflammation. J Biol Regul Homeost Agents. 2013 Apr-Jun;27(2):291-5. [↩]
  3. Shibata K, Hirose J, Fukuwatari T. Relationship Between Urinary Concentrations of Nine Water-soluble Vitamins and their Vitamin Intakes in Japanese Adult Males. Nutr Metab Insights. 2014 Aug 5;7:61-75. doi: 10.4137/NMI.S17245. eCollection 2014. [↩]