Reading Comprehension (RC) | The dosage for any prescribed medicine is the result of compromise.

­[box_out][box_in]      The dosage for any prescribed medicine is the result of compromise. All drugs are potentially poisonous, suggesting that the least possible amount should be administered. On the other hand, drugs become diluted in the blood and large amounts are degraded, taken up by healthy tissue, or excreted without reaching the site of disease. Physicians must balance these opposing considerations in determining effective doses.

     To reduce the risks and inefficiency associated with such determinations, ways are now being developed to deliver the needed dose of medicine to diseased tissues while bypassing healthy ones. One promising approach is the loading of medication into liposomes—microscopic sacs (vesicles) made of the same phospholipids that constitute cell membranes.

     A British scientist, Alec D. Bangham, inadvertently produced the first liposomes in 1961 while experimenting with the effect of phospholipids on blood clotting. Because liposomes are made of the same
...

Statistics : Posted by Bunuel • on 09 Mar 2024, 10:44 • Replies 0 • Views 53

---