Definitive laceration management depends. on the time since injury, the extent and loca-. tion of the wound, available laceration repair. materials, and the skill of the physician. Guidelines for seeking surgical consultation. for laceration repair are presented in Table 1. The optimal time interval from injury to. laceration repair is not clearly defined. Ana-. tomic location of the wound, health of the. patient, mechanism of injury, and wound.
This gene on chromosome 2 codes for the enzyme lactase. This enzyme enables infants to break down lactose, the main sugar in milk. In people who are lactose tolerant, the gene remains active throughout their lives.In most people who are lactose intolerant, the gene is turned off after infancy, making the digestion of dairy products difficult and painful.his enzyme enables infants to break down lactose, the main sugar in milk. In people who are lactose tolerant, the gene remains active throughout their lives. In most people who are lactose intolerant, the gene is turned off after infancy, making the digestion of dairy products difficult and painful.
Causes of lactose intolerance. Lactose is broken down by lactase. Lactose is a sugar that occurs naturally in milk and most dairy products. Lactose is readily broken down in the gut by an enzyme called lactase.Babies produce large amounts of lactase until they are weaned.actose intolerance is a recessive disorder. For a recessive disorder to show, both copies of the gene, called alleles, have to be identical. Individuals who have a cytosine (C) residue on both alleles close to the lactase gene do not produce lactase in adulthood and are lactose intolerant.