ampdepolymerase

Joined 6 years ago

Karma
1,535
Submissions
755
Member since
Jan 31
View on Hacker News

Recent submissions

Comment · 21 days ago
Congratulations to the team! A production ready lipid micelle with reliable human cellular uptake is non trivials. Kudos from the biotech community :)
Comment · 26 days ago
Funnily enough the reason why virology therapy (something the Soviets did a lot of research in cuz they didn't have good antibiotics and biotech/pharma) hasn't seen much success at scale is precisely because the body's immune system adapts too quickly. Maybe we will see more success now with AI but it will be a cold day in hell before the powers that be let any garage biohacker have access to LLMs trained on this sort of information.
Comment · 1 month ago
Why would you modify E coli for this? Use existing gut friendly bacteria and start from those. There's a wealth of material on the genetics of probiotics.
Comment · 3 months ago
Can you add support for touch?
Comment · 1 year ago
The phospholipid micelles are non-trivial (trade secret) to make and it's the major reason why African nations and other countries have not been able to successfully create mRNA vaccines at scale.

A cell is a bundle of proteins wrapped in a membrane that's sort of an oil drop (or as another comment said, a fat bubble). In biology it's called a phospholipid bilayer. Fun fact you can actually "merge" cells together with the help of certain viruses. Drug delivery usually involves moving molecules though this phospholipid bilayer which involves all sorts of tricks. There are pores and receptors on the membrane that can selectively bind to different biochemical molecules and proteins. A good chunk of research in bioinformatics, chemoinformatics, quantum computing is focusing on simulating protein binding dynamics and protein-protein interactions on various levels so we can design drugs that can bind to the receptors we want. (Alphafold made this a lot easier to figure out how to go from a sequence of genetic material to a specific protein shape) A RNA vaccine is kinda like a virus in that it has to be taken into a so the cellular machinery (ribosomes) can build the protein that it codes for. So having a micelle (or nanoparticle, whatever you want to call it) that can get absorbed and merged into the cell that you are targeting specifically is a Big Deal.

Comment · 1 year ago
> getting infected with the zika virus (probably the best thing to do IMO

Virology based methods don't last very long because the immune system adapts quickly. If you want to go down that route, make sure you have experts on hand.

Comment · 1 year ago
You should try to convince the others on the Facebook groups to undergo full genome DNA sequencing (around $1K USD, usually not covered by insurance, I would pay for the other patients if I were you, their data is more than worth it given it’s your life on the line) and submit the data to patient networks and orphan drug groups. There are lots of bioinformatics methods now (thanks to mostly advances in ML among other things) that can derive insights into the problem, without any physical assays or laboratory tests.
Comment · 2 years ago
> the mitochondria is the powerhouse of the cell

The explanation doesn't get much better at higher levels. You have the Krebs cycle which biology people religiously memorize but it doesn't really explain much either. The actual interesting part is usually handwaved away as "magical enzyme/protein" catalysis. Understanding how the mitochondrial proteins/enzyme catalysts function would usually require a graduate degree, and maybe a background in biochemistry and biophysics.

Comment · 2 years ago
Also "off target effects".
Comment · 2 years ago
Work/volunteer as a minimum wage software developer lab rat (or whatever your day job speciality is). There are plenty of labs that are in need of free labor when it comes to software/engineering support in general, just ask around.
Comment · 2 years ago
Most of the pop sci books are useless for practical use cases, and similarly the Feynman lectures self select for the physics/mathematically inclined.

Biology is a leaky abstraction, it's very hard to do anything with rigor without having a strong foundation in the fundamentals. You see the same discussion on hacker news when it comes to music, people are more interested in mapping programming concepts to music notation and complaining about western music presentation than the music itself. For biology, you need need to have a firm understanding of the central dogma and biochemistry if you want to do anything beyond surface level empirical trial and error. Most people, especially the "hacker types", only have a vague understanding of the former i.e. DNA translation and transcription and that's about the limit. You absolutely have to gain an intuition for biochemistry if you want to do things with rigor, otherwise you will just be the biotech equivalent of a bootcamp web developer, fit for washing test tubes and not much else.

Comment · 3 years ago
No, no, no. Explanation is inaccurate. The central dogma is the central dogma because information flow is primarily one way (yes there are exceptions i.e. epigenetics but primary information flow is from DNA to protein) and this is the fundamental tenet underpinning our current understanding of biology.

> A multicellular organism gametes divide only a handfull of times per generation.

That's what recombination is for during sexual reproduction.

> It does not contain informtion how to assemble the molecular machines from the proteins, or how "to be alive" in general.

Unless you subscribe to the creationist or Larmarckian schools of thought, this is flat out wrong. DNA polymerase and similar analogues like reverse transcriptase do not exist in a vacuum. There are entire branches of evolutionary biology dedicated to studying their formation. The main transcription proteins, helicase, polymerase, and ribosomes can all be assembled from the basic proteins they themselves transcribe. (Incidentally figuring out the ultimate structure that a protein chain assembles into is what AlphaFold does, bioinformatics and ML's crowning jewel)

> There is heritable information outside of DNA, that is epigenetic in its nature.

When biologists refer to epigenetics, they mean information carriage that's not strictly tied to the nucleotides. This doesn't meant DNA isn't involved. Most epigenetics I can think of off the top of my head all involve the DNA transcription mechanism in some way.

Comment · 4 years ago
> This is still relevant to his concern, but from the other end. They might be making the labor artificially scarce to increase pay.

This is very much true. I find that a lot of people in tech seem to put healthcare on a pedestal and believe that the professionalisation and gatekeeping of the industry create a better outcome than other engineering fields. This is very much untrue, the healthcare field is in need of massive disruption and lobbying to increase labor supply. You are being downvoted because a lot of tech people here hate to imagine that healthcare at the highest level is still subject to market forces like everything else. Medical training is being severely gatekept and hindered via the current apprenticeship/residency system. After all, we call the worst medical student, doctor. If you want to improve healthcare, tie medical school admission to the MCAT score, and only the MCAT score. You are not going to get better doctors just because candidates spend their summers building houses in some impoverished third world country.

Comment · 4 years ago
Note FDA rules require them to retain the data for a few years.
Comment · 4 years ago
There is a bigger iceberg lurking around. Look up the people who control medical school accreditation and funding. They have more blood on hands than many other industries put together. Medical innovation has been slowed down by magnitudes because of their gatekeeping.

Live from the official Hacker News API

A modern reader for Hacker News · SvelteKit + Skeleton