Medicines That Can Cause Tinnitus. Many prescription and nonprescription medicines can cause ringing in the ears (tinnitus). A few examples are: 1  Aspirin, ibuprofen (such as Advil or Motrin), and naproxen (such as Aleve). 2  Some blood pressure and heart medicines. 3  Some antidepressants.
Entrez Gene Summary for GULOP Gene. This gene is nonfunctional in humans and other primates. In most mammalian species the corresponding gene encodes L-gulono-gamma-lactone oxidase which catalyzes the last step of ascorbic acid biosynthesis.The human gene is a remnant that lacks five of twelve exons found in functional rodent genes.The loss of enzyme activity results in hypoascorbemia or the inability to synthesize vitamin C. [provided by RefSeq, Nov 2010]. GULOP (Gulonolactone (L-) Oxidase, Pseudogene) is a Pseudogene.he human gene is a remnant that lacks five of twelve exons found in functional rodent genes. The loss of enzyme activity results in hypoascorbemia or the inability to synthesize vitamin C. [provided by RefSeq, Nov 2010]. GULOP (Gulonolactone (L-) Oxidase, Pseudogene) is a Pseudogene.
We will see if various mammals, including the primates, such as humans and chimps, have a functional GULO gene. A functional gene is able to produce a functional protein, in this case the GULO enzyme. In some mammals, the GULO gene is an example of a pseudogene.Pseudogenes are vestigial genes.hy do you think that primates (monkeys, apes and humans) have lost the ability to produce vitamin C? (Hint: think about the diet of early primates). 2. Explain why the GULO gene in humans may be considered vestigial. 3. Explain how the presence of the GULO gene in humans provides evidence for evolution.