Dr. Lee was born in Shanghai, China, and received his college and medical training in the United States. He is fluent in English and three Chinese dialects. He graduated with chemistry departmental honors from Harvey Mudd College. He was appointed president of AOA society at UCLA School of Medicine. He underwent internal medicine residency and gastroenterology fellowship training at Cedars Sinai Medical Center.
Jay W. Marks, MD, is a board-certified internist and gastroenterologist. He graduated from Yale University School of Medicine and trained in internal medicine and gastroenterology at UCLA/Cedars-Sinai Medical Center in Los Angeles.
One of the major impediments to understanding the role
of SIBO in causing disease is the lack of a good test for diagnosis. In the last
few years, a new technique for studying intestinal bacteria has been developed
that is promising. Bacterial DNA is extracted from samples of stool and then
analyzed. The DNA analysis can determine the types of bacteria present as well as their numbers.
Perhaps this new technique will be useful in clarifying the importance of SIBO.
SIBO is a condition in which colonic-type bacteria
(resembling bacteria normally found in the colon) proliferate in large numbers
in the small intestine.
SIBO may be caused by dysfunction of intestinal nerves or
muscles, intestinal obstruction, or the presence of a blind loop.
The symptoms of SIBO are abdominal pain, bloating,
gas, and diarrhea. In advanced cases, there may be vitamin and mineral
deficiencies and weight loss.
SIBO is diagnosed by culturing intestinal fluid or
with hydrogen breath testing.
SIBO may be the cause of symptoms in at least some
patients with irritable bowel syndrome.
SIBO is treated with antibiotics, probiotics, or a combination of
both.
Small Intestinal Bacterial Overgrowth - Symptoms ExperiencedQuestion: Please describe the symptoms, and treatment of your small intestinal bacterial overgrowth.
Abdominal pain is pain in the belly and can be acute or chronic. Causes include inflammation, distention of an organ, and loss of the blood supply to an organ. Abdominal pain can reflect a major problem with one of the organs in the abdomen such as the appendix, gallbladder, large and small intestine, pancreas, liver, colon, duodenum, and spleen.
Crohn's disease is a chronic inflammatory disease,
primarily involving the small and large intestine, but which can
affect other parts of the digestive system as well. Abdominal pain, diarrhea, vomiting, fever, and weight loss are
common symptoms.
Gas or "intestinal gas" means different things to different people. Everyone has gas and eliminates it by belching or farting (passing it through the rectum).
Diabetes mellitus is a chronic condition characterized by high levels of sugar (glucose) in the blood. The two types of diabetes are referred to as type 1 (insulin dependent) and type 2 (non-insulin dependent). Symptoms of diabetes include increased urine output, thirst, hunger, and fatigue. Treatment of diabetes depends on the type.
In lactose intolerance, the digestive system cannot digest lactose (the main sugar in milk). Symptoms of lactose intolerance include diarrhea, flatulence, abdominal pain, abdominal bloating, abdominal distention, and nausea. There are several tests to diagnose lactose intolerance. Treatment is generally made with dietary changes, supplements, and adaptation to small amounts of milk.
IBS (irritable bowel syndrome) is a common gastrointestinal disorder involving abnormal gut contractions (motility) characterized by abdominal pain,
bloating, mucous in stools, and irregular bowel habits with alternating diarrhea
and constipation, symptoms that tend to be chronic and to wax and wane over the
years. Treatment options include medication and lifestyle changes such as diet, exercise, and stress management to control symptoms. Also called spastic colitis, mucus colitis, nervous colon syndrome.
Scleroderma is an autoimmune disease of the connective tissue. It is characterized by the formation of scar tissue (fibrosis) in the skin and organs of the body, leading to thickness and firmness of involved areas. Scleroderma is also referred to as systemic sclerosis, and the cause is unknown. Treatment of scleroderma is directed toward the individual features that are most troubling to the patient.
Dyspepsia (indigestion) is a functional disease in which the gastrointestinal organs, primarily the stomach and first part of the small intestine, function abnormally. It is a chronic disease in which the symptoms fluctuate infrequency and intensity. Symptoms of dyspepsia include upper abdominal pain, belching, nausea, vomiting, abdominal bloating, early satiety, and abdominal distention (swelling). These symptoms are most often provoked by eating.
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