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Gene Editing: Avoiding the                         employment in taking out beta-thalassemia and sickle cell

               inevitable                                         like blood disorder that directly affects the oxygen’s transfer
                                                                  in the blood.
                               Genome  editing,  more  commonly   3) Blindness
                               known  as  gene  editing  is  now  a  tool   Again,  this  is  a  single
                               that can rescue people from the curse   gene mutation that and
                               of genetic diseases.               can  be  easily  targeted

                               Let  us  develop  our  understanding  as   for  any  modification.
                               to  what  are  genetic  diseases.  Genetic   As the eyes are a very
                 By: Bilal Arshad  diseases  can  be  simply  explained  as   sensitive organ in terms
                                                                  of protection from the
                    (Karachi)  diseases  our  genes  carry  from  our
                   Reg # 20190500                                 immune system,CRISPR
                                                forefathers   and
                                                we  are  likely  to   is a great candidate for this hereditary disease.
                                                develop.   These                               4) AIDS
                                                diseases generally                             As  HIV  is  attached  to
                                                develop   at   a                               DNA while being inactive
                                                specific  age  limit.                          it  is  backbreaking  to
                                                There are chances                              identify  and  treat  it.
                                                you  may  or  may                              But  fortunately,  with  a
                                                not develop.                                   tool like CRISPR, we can
                                                So,  this  practice                            simply  cut  off  infected
               of  genome  editing  relates  back  to  the  1970s  when  we                    parts of the DNA.
               would alter some of the genes of the targeted organism to   5) Cystic fibrosis
               get our desired results, but this remodeling of the genome   It is a recently developed
               also  altered  other  genes  and  produced  dysfunctions  in   disease;  it  has  been
               the  organism.  The  practical  approach  to  developing  the   here  for  just  about  40
               technology was withdrawn, but more and more research   years.  Many  therapies
               was necessitated.                                  can  treat  cystic  fibrosis

               By  good  luck  and  thousands  of  hours  of  research  work   to  some  extent  and
               CRISPR  technology  emerged.  CRISPR  (Clustered  Regularly   improve  the  patient’s
               Interspaced  Short  Palindromic  Repeats)  gene  editing  is  a   life   expectancy   but
               technique  developed  from  genetic  engineering  and  was   cannot remove it successfully. Luckily CRISPR can.
               successfully  tested  in  2019.  CRISPR  system  produces  an                   6) Muscular Dystrophy
               enzyme Cas9 that can bind with DNA and can delete the                           Mutation  in  the  DMD
               targeted troubled gene. This technology gives humans the                        gene  can  result  in
               chance to break free from the curse of genetic diseases.                        Muscular   Dystrophy.
               Among  many  there  are  7  genetic  diseases  that  CRISPR                     Children born with this
               technology has the chance to eliminate.                                         suffer  greatly  as  their
                                           1) Cancer                                           muscle   degenerates
                                           Yes,  for  those  who                               at  a  very  young  age
                                           from  cancer  because                               limiting  their  ability
                                           their  parents  did  and   from  any  physical  exercise  as  there  is  no  treatment
                                           before   them   their   currently. But CRISPR trials on mice proved it can fix with
                                           grandparents  did.  To   further development in this technology.
                                           some 86 people CRISPR   7) Huntington’s disease
                                           technology  has  been   A   neurodegenerative
                                           advantageous    they   (degeneration    of
                                           were  treated  in  China   the  nervous  system,
                                                                  especially  the  neurons
               and  some  in  the  US                             in  the  brain),  disease
               have also been through                             that  has  a  very  strong
               the  trial.Results  were                           genetic   component
               satisfactory  and  now                             and occurs when inside
               many  affected  also                               Huntington’s  gene  DNA  sequence  gets  copied  pasted
               expect the same.                                   several times, more copies = earlier it’s occurrence.

               2) Blood disorder                                  “ Let us all hope that this technology may evolve and help
               Trials  in  Europe  and                            all those affected “
               the  US  proved  its

               ICMA Pakistan’s Students’ e-Magazine            24               Volume 2.1       |    February 2020
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