Lactose intolerance is a consequence oflactasedeficiency, which may be genetic (primary hypolactasia and primary congenital alactasia) or environmentally induced (secondary or acquired hypolactasia).
However, the main inherited brush-border enzymedeficiencyreported, when no histological abnormalities are present, is a relativelactasedeficiencyincats. Theirlactaseactivity declines after weaning, and they may become lactose intolerant.
The prevalence oflactasedeficiencyinBritish adults is unknown. Examination of the distribution oflactaseactivities in single and multiple biopsies of jejunum indicated that 0.8 U/g wet weight was a suitable cut-off point to separatelactasedeficientpatients from others.
Lactasedeficiencymay occur because of a congenital absence (absent from birth) oflactasedue to a mutation in the gene that is responsible for producinglactase. This is a very rare cause oflactasedeficiency, and the symptoms of this type oflactasedeficiencybegin shortly after birth.
Such details provide a deeper understanding and appreciation for Lactase Deficiency In Cats.
Lactasenonpersistence, also called primarylactasedeficiency, is the most common cause of lowlactaselevels. Congenitallactasedeficiency. In this rare condition, the small intestine makes little or nolactase, starting at birth. Not all causes of lactose intolerance are genetic.
Testing forlactasedeficiency. The original test was to give lactose sugar in water and measure rising blood levels of glucose.Dogs,cat, cows … all mammals, in fact, becomelactasedeficientwhen there is no further milk exposure after weaning.
- Developmentallactasedeficiency. Secondary lactose malabsorption. CLINICAL FEATURES.Lactase-deficientpersons who are exposed to lactose may develop lactose malabsorption, depending on the amount of ingested lactose.
