Community Impact


For Sebastien and Annett Cotte, no two days are the same when it comes to caring for their son, Jagger.

Sebastian and Annett Cotte, with their son, Jagger

A typical routine for the Stone Mountain, GA, couple begins when Jagger wakes up between 10:00am and noon. From there, the couple must spring into action to ensure that Jagger’s needs are taken care of.

“He starts coughing right away so he has to be suctioned, and then we have to give him a breathing treatment,” Sebastien said. The treatment can take between 30 and 40 minutes. While he or Annett assists Jagger with the breathing treatment, the other prepares the more than 30 doses of medication Jagger takes each day. Each dose will need to be given through his feeding tube every hour.

“If he’s calm, we let him be until mid-afternoon,” Sebastien added. “Sometimes we try to do things with him. Sometimes he will fall asleep. In between, there are more breathing treatments, sponge baths and lots of coughing. We also have other things to do, like work and laundry.” They care for Jagger without a nurse or any outside help.

“I always tell people I am lucky enough to have a husband who cooks, because I eat well,” Annett jokes.

If everything goes well with what the couple calls “Jagger’s continuum of care,” the family may settle into bed at 3:00am. More often than not, bedtime is closer to 5:00am.

In 2011, with little understanding about what was wrong with their son, Sebastien and Annett had doctors perform a muscle biopsy on Jagger after several hospital visits where Jagger’s muscles were stiffening, and he was writhing in pain. During one visit, Jagger was revived after he coded – an incident that has repeated several times since the first visit.

The biopsy results showed Jagger had a mitochondrial disease. A follow-up MRI revealed a bisymmetrical lesion on his brain. Between the MRI, blood tests and the muscle biopsy, the Cottes received a clinical diagnosis for Jagger: Leigh syndrome. They were told that Jagger would not live to see his fourth birthday. Jagger is now nine years old.

The Cottes left the hospital with a priority of rearranging their lives to make sure Jagger would have a wonderful quality of life and to keep his suffering at a minimum.

“I know he knows he’s loved,” Annett said, through tears.

As any parent who cares for a child with mitochondrial disease knows, personal sacrifices are many and often go unnoticed. While honoring their promise to provide Jagger with quality of life, they still have full time jobs and other responsibilities. Sebastien has worked in sales for a Japanese based company for 15 years. His main office is in Chicago, but Sebastien works from the family home outside of Atlanta. His employer allows him flexibility in his schedule.

“As long as I have an airport near, and I have a computer, I can work from anywhere,” he said.

Since his company’s headquarters is based in Tokyo, Sebastien has the opportunity to do most of his work while Jagger is sleeping as most of his colleagues are in the office during that time. He also credits his supervisors for offering him flexibility and understanding.

For the past 14 years, Annett has worked for the Centers for Disease Control (CDC) in Atlanta. Her schedule allows her to work from home three to four days a week.

“I work on Malaria control in sub-Sahara and Africa. I do work late at night, which is beneficial because my colleagues are usually up when I email or call them so we can communicate in real-time,” she said.

For both, juggling their careers and travel schedules can be tricky. They use a shared calendar to track meetings, travel, and Jagger’s medical appointments. Coordination is critical.

For example, Jagger has an IV port that requires cleaning and sterilization every seven days. It’s a job that requires two people.

“Sebastien is my assistant on this, so I try not to be gone more than eight days in a row,” Annett explained. “Besides, I miss cuddling with Jagger, so eight days to be away is plenty.”

Because of the difficulty in transporting Jagger, the Georgia heat in the summer and complications that could arise, the Cotte family is usually homebound when they are not working or traveling for business.

“Before Jagger was born, we were very active and traveled a lot,” Annett remembers. Taking care of Jagger was an adjustment for the couple, who say they were definitely not couch potatoes. “You kind of go stir crazy a little bit after being stuck in the house for several days missing the sunlight,” she added.

To maintain their own mental health, the couple concluded they needed to get out and do things, even if they have to do them individually to maintain Jagger’s care at home. Annett likes to kayak and paddleboard, and Sebastien, who she credits with being more outgoing, likes to go to concerts. They also find support and comfort talking with parents whose children are also affected by mitochondrial disease.

While the Cottes point out that they are realistic about Jagger’s future, it doesn’t stop them from working to help other patients and families who are on a journey with mitochondrial disease. Sebastien is a longtime advocate for the use of medical cannabis an option for patients. He continues to educate lawmakers and patients about medical cannabis therapy and how it enabled them to eliminate the opioids they gave Jagger for pain.

In March of 2019, Annett served as a panelist for the Patient Focused Drug Development Meeting with the U.S. Food & Drug Administration (FDA). The meeting was hosted by the UMDF in partnership with Mito Action and the Muscular Dystrophy Association. The patient-led meeting provided affected adults, parents and caregivers a platform to detail their own personal experiences with mitochondrial disease. The testimony was published in a “Voice of the Patient” report outlining the need for therapeutic development towards treatments and cures.

“It was very emotional,” Annett said about her experience. “I felt as if the other panelists were being Jagger’s voice, because he is non-verbal. They put a voice to his pain and discomfort. And yet, it was comforting for me to hear the panelists speak because, as devastating as our stories are, I was able to relate after hearing patients talking about their experiences.”

The Cottes and the “Moves Like Jagger” Energy for Life Walk team

The Cottes track their involvement with UMDF back to shortly after Jagger was born. They remember being new parents who knew nothing about mitochondrial disease. They aren’t sure if they found UMDF in an online search or if it was through the recommendation of another parent, but they do remember the desperation they felt.

Sebastien and Annett were invited to an Atlanta patient family meeting by UMDF’s Education Support Associate, Margaret Moore. It was there Sebastien met other patient families and learned about Mitochondrial Medicine, UMDF’s one of a kind annual symposium that brings together patients, scientists and clinicians.

“When I went to my first symposium, it was a really big deal, because I realized we were not alone,” Sebastien remembers. “I also realized there were a lot of people who were caring about our kid and really wanted to help. They are dedicating their lives to finding a cure and making our kid’s life better, and that was a huge boost of hope.”


The Zilber Family makes many efforts to honor the child they never got to know.

Miriam Zilber

Sophia Zilber doesn’t know where her volunteer assignment with the UMDF will take her, but she hopes her work will make a difference in the lives of mitochondrial disease patients.

Sophia, and her husband, Ross, know all too well the devastation this disease can bring. The Zilbers, from Newton, MA, are the parents of three young boys and were ecstatic when their only daughter, Miriam, was born in February of 2017. As soon as they brought her home, Sophia felt something wasn’t right.

“She was not breast feeding, and she wouldn’t sleep,” Sophia remembers. After being told by their pediatrician that ‘Miriam would figure it out on her own,’ the Zilbers switched the baby to bottle feeding; but, Miriam wasn’t interested in that either.

The worried parents were unwilling to go another weekend without Miriam eating. Sophia took her to the doctor and asked if taking her to the hospital now would be recommended but was sent back home.

Two days later, Miriam had a puffy hand that looked unusual, and the Zilbers took her back to the doctor’s office. Upon arrival, the pediatrician called 911. Miriam’s vital signs were very concerning.

Doctors thought the baby was battling an infection. It would be a few days later when physicians would tell the Zilbers that an MRI showed Miriam had mitochondrial disease with a very rapid progression. She would pass away a month later.

Doctors later told the Zilbers that Miriam had Leigh syndrome.

To honor the child they didn’t get to know, the Zilbers became very active volunteers for the UMDF.

Ross, who works in financial services, uses his time to spread awareness about a disease he thinks needs more recognition. He facilitates an awareness event each year at City Hall where facts about mitochondrial disease are displayed and questions are answered.

In 2019, Sophia and Ross invited Rep. Joseph Kennedy (D-MA-04) and Amel Karaa, MD, of Massachusetts General Hospital to the event.

“The Congressman’s office offered to share information about mitochondrial disease on his social media channels because of the strong following he has,” Ross said.

Ross and Sophia Zilber with their sons

As part of Awareness Week 2019, Sophia shared an interview she and Ross gave for the American Academy of Pediatrics newsletter with actress Mayim Bialik. Bialik, who starred on the television program, The Big Bang Theory, is also a trained neuroscientist. Sophia asked the actress if she would help spread the word about mitochondrial disease. Bialik was moved by the story and wanted to help. She created a video for us to share across social media during awareness week. Sophia and Ross are grateful for Bialik’s kind gesture of support.

The Zilbers recognize the importance of funding the promising research that moves the community fast towards treatments and cures. That is why they were excited to be inaugural members of the accelerators program in 2019.

Despite having a full-time job as a statistical programmer at a large pharmaceutical company in Boston and raising three sons, Sophia devotes herself to helping patients and families by bringing her expertise to the Mitochondrial Disease Community Patient Registry (MDCR). Working alongside UMDF Science & Alliance Officer, Philip Yeske, PhD, Sophia is gathering information from the registry that she hopes will help others. She knows putting her mind and skills to work for this project helps her in living with her loss.

In working with the anonymous survey responses, Sophia says patients, families and caregivers want physicians to understand about the challenges they face in their daily lives.  “All comments are very sincere and honest, and it is clear that people put their hearts into these hoping someone will read them. I want them to know that somebody heard them,” Sophia said.  She and Dr. Yeske turned those patient comments into a recently published paper they believe will help all doctors who are treating mitochondrial disease patients understand their physical and emotional needs.  The paper, “Mitochondrial Disease Community Registry: First look at the data, perspectives from patients and families”  published in the Journal of Mitochondrial and Metabolic Medicine. The paper was published in March 2020. Sophia hopes it will make a difference for those on their journey.

We count on supporters like the Zilbers to volunteer their expertise for important projects that not only provide a voice for patient families but help our community move faster towards treatments and cures.


Dr. Atif Towheed

“I was exposed to science from the very beginning,” remembered Atif Towheed, PhD, about his childhood in India.

As the son of two zoologists, young Atif watched his father, an endocrinologist, draw the electron transport chain and explain how the electrons would move from one complex to another. His mother is a professor of sericulture, the study of silk worms and silk production. As a child, Dr. Towheed would marvel at the process the worms used to spin their cocoons, which are then used to create silk fabric. This early education led Dr. Towheed to think about a career in science but he wanted his work to make an impact. Like the silk worm, he wanted his work to produce something people could use.

Dr. Towheed was drawn to gene therapy as a way to help people. After earning his Master’s degree in Biotechnology from the All India Institute of Medical Sciences, he joined the International Centre for Genetic Engineering and Biotechnology (ICGEB), a project of the United Nations research center to work on viruses.

Dr. Towheed then looked to the United States to further his education. He was accepted to several graduate programs but was drawn to the University of Pittsburgh and the work of Michael Palladino, PhD.

“That is when my quest in mitochondrial medicine began,” he said. It was also the first time he heard about the United Mitochondrial Disease Foundation.

“Michael mentioned that UMDF has this wonderful annual symposium where patients, scientists and physicians gather at a common platform and suggested that I attend this symposium,” Towheed said.

During one of the sessions, Dr. Towheed sat with a patient who had the same mutation on which he was conducting research.

“They taught me so much in that 30 to 40 minutes – more than I had learned in the previous few months. It set the foundation for me to explore this area of research and medicine,” Towheed said. Along the way, he described meeting several mitochondrial scientific and medical experts who helped him connect his passion for research to gene therapy and mitochondrial medicine.

While working in Dr. Palladino’s lab, Dr. Towheed used fly models to investigate the importation of RNA. Mitochondria naturally imports proteins and RNA for its normal functioning. However, over the course of evolution, mitochondria retained 37 genes within its mtDNA that codes for 13 critical oxidative phosphorylation proteins, 22 tRNAs and 2 rRNAs. Mutations in mtDNA are known to cause mitochondrial diseases. Several strategies are being investigated to modify the mitochondrial genome; however, currently, there is no effective technique to replace the mutated gene and fix the mutation in the clinic. Dr. Towheed wanted to investigate if it would be possible to supplement or replace the defective RNA, which could potentially lead to a treatment for Leber’s Hereditary Optic Neuropathy (LHON).

As fate would have it, Dr. Towheed was selected to present his project during a WALS meeting at the National Institutes of Health (NIH) in April 2014 where Doug Wallace, PhD, Director of the Center for Mitochondrial and Epigenomic Medicine at Children’s Hospital of Philadelphia, was the guest lecturer.

“After I presented my talk, I had a chance to meet with Dr. Wallace to discuss my project and the possibility to work together,” he remembered. Dr. Towheed was in his last year of graduate school when Dr. Palladino and Dr. Wallace encouraged him to apply for a UMDF Research Grant to evaluate a novel gene therapy for mitochondrial disease, specifically for LHON.

After being awarded a $70,000 research grant from the UMDF, Dr. Towheed joined Dr. Wallace’s lab as a postdoctoral fellow where his research on the RNA project would move forward.

In the Wallace Lab, Dr. Towheed used mammalian cellular and mouse models to investigate various strategies to import RNA into the mitochondria.

“We were able to show that two RNA import vectors were able to partially rescue an LHON cell line model. This LHON model has a mutation in ND6 gene that is responsible for ~5 to 10% of LHON cases in humans. Using one of the RNA import vectors, we demonstrated that the mutant phenotype was rescued significantly,” he explained. Of course, this was also possible with the help of wonderful collaborators. The project is the subject of a paper that has been receiving good reviews, has an international patent and is ready to move onto a more rigorous review. The Wallace Lab is actively testing the mouse model as a potential therapy for LHON.

“We are keeping our fingers crossed. It truly was a eureka moment,” he said.

While the design of the project was specific to LHON, Dr. Towheed believes that the findings of the UMDF funded research is applicable to other genes in the mitochondria and could be customized for the treatment of other primary mitochondrial diseases. He mentioned that the research grant funding from the UMDF played a critical role in the success of his project.

“I would not have been able to accomplish this research,” he says. “The funding from UMDF gave me opportunities for other grants; and without the UMDF grant, the last four or five years would have been very different.”

As he continues his research, the future is going to be very different for Dr. Towheed. His strong passion to help the patients and families he met at the UMDF symposia led him to medical school, where he is in his second year.

Currently based in upstate New York, UMDF connected Dr. Towheed to patient families in his area. While still being trained as a medical doctor, Dr. Towheed met with one of the families and learned that they spent the last 21 years on a journey to get an accurate diagnosis for their two children.

“I asked if there was something that I could do to help them,” Towheed explained. “I started working with them earlier this year, pouring over 21 years of clinical notes and clinical data. Within a few months, I was able to report back to them about my hypothesis that they have an extremely rare mutation that has only been reported in 26 patients worldwide. After consulting experts in clinical mitochondrial medicine, I suggested they request their caregiver to order further molecular genetic testing such as a whole exome sequencing (WES).”

The WES confirmed Dr. Towheed’s hypothesis. He presented this rare case study at UMDF’s Mitochondrial Medicine symposium in June 2019. It confirmed his desire to move from bench to bedside.

Dr. Towheed expressed his gratification and appreciation for the family and everyone involved.

“When I met with the parents after diagnosis was confirmed, I could sense their relief. Just helping them find an answer made everything worth it, and I feel that I am moving in the right direction.”


Cavan McGovern

Loretta and Dave McGovern had never heard of Kearns-Sayre syndrome (KSS). Their son, Cavan, wasn’t growing and wasn’t putting on weight. Cavan, who will be 11 years old, was becoming fatigued every day to the point of being unable to exercise or sit up at his desk at school. Cavan’s eyelids began to droop considerably, and it became so severe that he had to tilt his head back in order to see. An MRI revealed considerable changes in Cavan’s brain matter since his last MRI two years before. The Locust Valley, NY, parents were terrified. Genetic testing completed in April of 2018 confirmed the diagnosis of KSS. They turned this frightening ordeal into an urgent mission to save their son; and their first call was to UMDF.

In September 2018, the McGoverns created The Cavan McGovern Family Research Fund.  They leveraged their experience working for various nonprofits and fundraised by asking friends, family and colleagues to support the fund. In one week, they raised over $36,000. In less than a year, the fund increased to $160,000.

“Never did we expect to have to draw on our fundraising background to raise money to save our son’s life,” Loretta said.

The family also hosts an annual “Cavan’s Family Fun Day”.  Cavan plays an important role in planning the day.  He loves to make sure everyone has a great time with kid’s races, face painting, carnival games, and plenty of food. And everyone does have a great time!

Through their passion, drive and generosity, the McGovern family powers the research to help Cavan and all who battle KSS.