What Are Chemicals? | How Drugs Work in the Body | Understanding Homeostasis

We’re all made of chemicals—but what exactly is a chemical? In this video, we break down the basics: chemicals are forms of matter that exist as solids, liquids, or gases. Inside living organisms, these chemicals create complex networks that keep us alive and balanced—a process known as homeostasis.

Drugs are chemicals too! They work by interacting with these biological networks to help restore or adjust how the body functions. Whether you’re a curious learner, a patient, or a future scientist, understanding these fundamentals can empower better decisions about your health and treatment.

🔬 Learn more about biology, medicine, and how science impacts your daily life.

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Full Intro to Medical Science Playlist: https://www.youtube.com/playlist?list=PLrDVyc3t26Fy5aQpo3mulackGlUwrIqYL

In This Episode, We Explore

- What exactly is a chemical—and why it matters - The definition of a drug and how it works in the body - How chemical reactions power life - Biochemicals: the molecules that make living systems tick - Cells: the basic building blocks of life - Types of polymers and their roles in biology - The languages of life: how nucleic acids and proteins communicate - DNA and RNA—what they are and what they do - What happens when genes change: understanding mutations - The difference between helpful and harmful gene mutations

What makes antisense oligonucleotides (ASOs) so special? Let’s first understand what an oligonucleotide is. An oligonucleotide is a short strand of synthetic DNA or RNA (a nucleic-acid chain), usually consisting of up to approximately 20 nucleotides long—designed to bind with specific sequences in the body. At n-Lorem, our ASO technology is built on more than 30 years of research, innovation, and investment. It’s uniquely suited for treating nano-rare diseases—ultra-rare genetic conditions that affect just one or a few individuals. The versatility and specificity of ASOs allow us to address a wide variety of gene mutations, creating customized therapies for each unique patient. Compared to other traditional drug discovery platforms, discovering and developing an optimal ASO is inexpensive, quick and can be used to treat diseases that are caused by many different types of gene mutations. ASOs work by binding to RNA, thereby modifying the expression of disease-causing proteins. This makes them exceptionally well-suited for treating diseases caused by rare or unique genetic mutations. On This Episode We Discuss:

- The repurposing of small molecule drugs

- The promise and limitations of gene replacement therapies

- What makes ASO drug development different—and better—for nano-rare diseases

- A brief history of modern drug development

- How regulatory frameworks evolved after medical disasters

- The decentralization of the biotechnology industry

- What challenges still lie ahead in genetic medicine

Intro to Medical Science Series YouTube Playlist: https://www.youtube.com/playlist?list=PLrDVyc3t26Fy5aQpo3mulackGlUwrIqYL

This episode is brought to you by Hongene Biotech!

On this episode we discuss:

2:45 – What Connor’s life was like from birth

4:20 – Finding a SCN2A diagnosis through genomic sequencing

6:40 – A hallway conversation between Kelley and Stan about Connor sparked the idea of the n-Lorem Foundation

9:20 – Dr. Olivia Kim-McManus on engaging and gaining institutional support to treat n-of-1

11:40 – Connor's program was uniquely challenging

14:18 – Connor unknowingly had coronavirus upon receiving his first ASO dose

18:00 – Symptoms that affect Connor’s life on a daily basis

18:55 – Connor has walked unassisted for the first time in his life

26:10 – Finding the optimal treatment dose and schedule

29:05 – Improvement of painful gastrointestinal (GI) issues

Bios:

Kelley Dalby is the Director of Natural History and Diagnostics in Epilepsy at Praxis Precision Medicines, where she has worked for four years. Kelley worked as a high school English teacher in San Diego until her son Connor was born with a severe form of epilepsy caused by a mutation in the SCN2A gene. When he was diagnosed, she co-founded a biotechnology company, RogCon, focused on discovering therapies for SCN2A mutations. Kelley served as Vice President and contributed to the companies’ success, including licensing the primary program to Praxis Precision Medicines.

Dr. Olivia Kim-McManus is an Associate Clinical Professor, UC San Diego School of Medicine Dept of Neurosciences, Pediatric Neurologist and Epileptologist, Rady Children’s Hospital Precision Therapeutics Neuro-Interventional Program Director. She received her undergraduate degree in Neurosciences at Columbia University in New York City and medical degree at George Washington University Children’s National Medical Center. She specializes in treating children with medically intractable epilepsy due to rare genetic etiologies requiring targeted genetic therapies or epilepsy surgery. She is the Director of the Batten’s Disease Neuro-infusion Program at Rady Children’s Hospital where she delivers intraventricular cerliponase-alfa enzyme replacement therapy via Ommaya reservoir targeted for disease modifying therapy for rare pediatric genetic disease. Dr. Kim-McManus is Neurology Section Vice Chief of Medical Staff Executive Committee at Rady Children’s Hospital, ACGME Epilepsy Fellowship Associate Program Director at UCSD, Epilepsy Foundation San Diego Professional Advisory Board member, Rady Children’s Insitute for Genomic Medicine clinical investigator, and UCSD Altman Clinical and Translational Research Institute Scientific Review Board member.

Links: n-Lorem Candle and Card Fundraiser - https://www.nlorem.org/mothers-day-candle-2025/

Hongene - https://www.hongene.com/

For n-Lorem's Chief Operating Officer, Sarah Glass, the mission of n-Lorem is deeply personal. Her son Ethan was diagnosed with a nano-rare mutation, a journey that has shaped her commitment to the cause. A geneticist by training, Sarah joined n-Lorem to help lead and guide the organization in its efforts to offer hope and potential help through treatment opportunities to nano-rare patients and their families. This is more than just a job for her—she is driven by her love for her son and a passion to serve the entire nano-rare community. This episode is proudly sponsored by Hongene Biotech.

“We are changing the landscape of rare disease drug discovery and development – starting with the most rare.” – Sarah Glass, Ph.D.

On This Episode We Discuss:

✔️ Sarah’s background in science and her early interests

✔️ How working at a Contract Research Organization (CRO) shaped her understanding of the patient experience

✔️ The challenges of rare disease clinical trials and why they are still relatively new

✔️ Sarah’s son, Ethan, and his journey as a nano-rare patient

✔️ How long it took for Ethan to receive a diagnosis and the symptoms he faces

✔️ How Sarah discovered n-Lorem, a nonprofit providing free, lifetime treatment for nano-rare patients

✔️ The emotional journey of caring for a nano-rare child—how parents navigate hope and uncertainty

✔️ What Sarah has learned while working at n-Lorem

✔️ The biggest surprises in her journey as both a mother and a scientist

If you’re passionate about rare diseases, personalized medicine, and patient advocacy, this episode is a must-watch! 💙

🔔 Subscribe for more stories from the rare disease community! #RareDisease #NanoRare #nLorem #PatientAdvocacy #geneticdisorders

Donate to n-Lorem: www.nlorem.org/donate

More about Hongene: www.hongene.com

Our bodies are like bustling cities of cells, always chatting and working together. They don’t just send long-distance messages to organs—they also gossip locally, getting nearby cells to spring into action. Juxtacrine communication is like a handshake between cells—they have to be up close and personal to pass the message along! Unlike long-distance cellular calls, juxtacrine signaling requires direct contact, where one cell’s surface proteins interact with another’s, triggering a response.

This episode is brought to you by Hongene Biotech who is continuously innovating to make RNA medicines accessible and affordable to patients worldwide. Visit www.hongene.com

On this episode we discuss:

• Paracrine communication
• Recently found exosomes
• Cell to cell contact-dependent communication (Juxtacrine signaling)
• Tunneling microtubes
• Cell communication conclusions

How do cells communicate with each other? With trillions of cells in the human body, seamless collaboration is essential within this intricate cellular society. Cells work together to form organs, and when one organ needs another to perform a task, they send signals across distances—much like picking up the phone and calling someone. Organ Hotline

📞 Eyes: Hey, Brain? This is Eyes. We’re reading this post about how organs communicate, and it’s really interesting. 📞 Brain: Oh, show me more! What’s it say? 📞 Eyes: Apparently, organs send signals to each other to get stuff done. Like, the liver calls the stomach when it’s time to detox! 📞 Brain: Whoa, I had no idea they were so organized! Keep reading, I need all the details! 📞 Eyes: I’m on it! But it says they made a whole podcast episode on in. 📞 Brain: Alright, I’m sold! I'm signaling to press play. On This Episode We Discuss:

• How cells talk to each other
• Multicellular organisms
• Why cells create organs
• Organ to organ communication - Electrochemical
• Chemical signals - The endocrine system
• Hormones created by other organs

This episode is brought to you by Hongene Biotech: https://www.hongene.com/

Support n-Lorem and nano-rare patient: https://www.nlorem.org/donate/

Rosie was the first of three HNRNPH2 patients to receive treatment with an n-Lorem ASO, helping to pave the way for others. Her parents, Nicole and Bobby, share their daughter's journey and how they have adapted as a family to meet her unique needs. As a pediatrician, Nicole understands the complexities of medical care, yet she acknowledges that even she doesn’t always have the answers when it comes to raising a child with a nano-rare disease—a reality that resonates with many nano-rare families. On this episode we discuss:

2:00 Bobby left his job to help care for Rosie full-time

7:36 Nicole is a pediatrician and it’s difficult for her to not regularly attend Rosie’s appointments

11:16 Rosie’s diagnosis of HNRNPH2

16:00 Even as a pediatrician, Nicole finds nano-rare diseases complex and difficult to navigate

19:29 What is HNRNPH2?

26:40 Coming to terms with the diagnosis

29:35 Weighing the potential risk/benefit and making the decision that Rosie will be the first HNRNPH2 patient treated with an experimental medicine

37:05 How Rosie is doing after three ASO treatment doses

40:35 Potential for a placebo effect and allowing multiple observers to notice changes

Donate to n-Lorem: https://www.nlorem.org/donate/ This episode is brought to you by Hongene Biotech: https://www.hongene.com/

Sloane was born with a KIF1A mutation and is a special case at n-Lorem—she was the first patient to receive a medicine originally designed for someone else. Her mother, Megan, and grandfather, Tom, join the Patient Empowerment Program to share her journey and provide an update on how she’s doing six months after treatment.

On This Episode We Discuss:

• Sloane’s KIF1A diagnosis
• Nano-rare diseases affect the entire family
• Sloane was able to use the same ASO as another KIF1A patient
• Finding n-Lorem through KIF1A.ORG
• Shocked that n-Lorem was able to create personalized treatments efficiently at cost
• Sloane’s case is unique in a variety of ways and the decision to treat
• How Sloane has responded to treatment
• Are better measurements of benefit needed for nano-rare patients?
• How Sloane has brought empathy, joy, and positivity to her family
• Tom unretired to help fund research and support
• The origins of ASO medicine is a long haul

Thank you to Hongene Biotech for sponsoring this patient story episode!

Make Hope Possible for nano-rare patients with a donation to n-Lorem.