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Medicine & Biotech

Germ theory through mRNA to CRISPR — the paradigms, the modalities, the discoveries

A mind map of medicine and biotech: the pre-modern foundations and the germ-theory revolution; the chemotherapy and antibiotic era; the molecular and genetic revolution; modern drug modalities; diagnostics, imaging, and interventions; and the contemporary wave of precision, regenerative, and AI-driven medicine. Named scientists, discoveries, drugs, and devices with dates across six branches.

Germ Theory & Public HealthChemotherapy, Antibiotics & VaccinesMolecular & Genetic RevolutionModern Drug ModalitiesDiagnostics, Imaging & InterventionsPrecision, Regenerative & AI MedicinePre-modern foundationsVaccination and immunologyThe germ theory revolutionSurgery and anesthesiaPublic health infrastructureEhrlich's magic bulletThe antibiotic eraThe vaccine centuryInsulin and hormone therapyCancer chemotherapyRegulatory and safetyThe DNA eraRecombinant DNA and biotechPCR and DNA methodsAntibodies and biologicsThe Human Genome ProjectCRISPR and gene editingSmall moleculesCell therapiesGene therapiesmRNA therapeuticsGLP-1 and obesityRNA interference and otherImaging historyMolecular diagnosticsSequencing platformsSurgical innovationMedical devicesBrain-computer interfacesPrecision medicineRegenerative medicineMicrobiome and immunityAI in medicineThe digital and consumer layerFrontier and open problemsHippocrates — humoral theory, 5th c. BCEGalen — anatomy and medicine, 2nd c. CEAvicenna — Canon of Medicine, 1025Vesalius — De Humani Corporis Fabrica, 1543William Harvey — blood circulation, 1628Edward Jenner — smallpox vaccination, 1796Louis Pasteur — attenuated rabies vaccine, 1885Emil von Behring — diphtheria antitoxin, 1890 (Nobel 1901)Paul Ehrlich — receptor theory, side-chain hypothesis, 1900Ilya Mechnikov — phagocytes, 1882 (Nobel 1908)John Snow — Broad Street pump, cholera map, 1854Louis Pasteur — pasteurization + spontaneous generation disproven, 1860sJoseph Lister — antiseptic surgery with carbolic acid, 1867Robert Koch — Bacillus anthracis isolation, 1876Koch's postulates — 1884 (causation criteria)Koch — tuberculosis bacillus, 1882; cholera, 1883Ignaz Semmelweis — handwashing in obstetrics, Vienna 1847 (rejected)William T. G. Morton — ether anesthesia, MGH Oct 16 1846 ("ether dome")James Simpson — chloroform, Edinburgh 1847Theodor Billroth — modern surgical training, Vienna 1881Harvey Cushing — modern neurosurgery, Boston 1900sAlfred Blalock & Vivien Thomas — blue-baby surgery, Johns Hopkins 1944Helen Taussig — pediatric cardiology, Johns HopkinsLondon sanitation reform — Chadwick Report, 1842Chlorination of drinking water — Jersey City 1908Alexander Fleming — lysozyme, 1922 (pre-penicillin)WHO founded, 1948Smallpox eradicated, 1980 (WHO declaration)Guinea worm near-eradication (Carter Center), 2020sPaul Ehrlich — Salvarsan (606), syphilis treatment, 1910Concept of targeted chemotherapy — "magic bullet"Gerhard Domagk — Prontosil sulfa drug, Bayer 1932 (Nobel 1939)Sulfonamides — first broad-spectrum antimicrobialsAlexander Fleming — penicillin discovery, Sep 28 1928Howard Florey + Ernst Chain + Norman Heatley — penicillin purification, Oxford 1939–1941Mass production at Pfizer, Peoria USDA lab, 1943Selman Waksman + Albert Schatz — streptomycin, Rutgers 1943Tetracycline, chloramphenicol, erythromycin — 1940s–1950sMethicillin-resistant S. aureus (MRSA) — first noted 1961Daptomycin, linezolid — modern antibiotics against resistanceJonas Salk — inactivated polio vaccine, 1955Albert Sabin — oral polio vaccine, 1961Measles vaccine — John Enders, 1963Rubella vaccine — Stanley Plotkin, 1969 (RA 27/3 strain)MMR combined — 1971Hepatitis B vaccine — Blumberg, first recombinant 1981HPV vaccine — Gardasil approved, 2006Rotavirus, pneumococcal conjugate, meningococcal vaccinesFrederick Banting + Charles Best — insulin isolation, Toronto 1921James Collip — purification; Eli Lilly commercial production, 1923First patient Leonard Thompson treated, Jan 11 1922Recombinant human insulin (Humulin) — Genentech/Lilly, 1982Cortisone — Hench & Kendall, Mayo 1948 (Nobel 1950)The pill — Gregory Pincus, Enovid FDA approval 1960Nitrogen mustard for lymphoma — Goodman & Gilman, Yale 1943Sidney Farber — methotrexate remission in childhood leukemia, 1948Aminopterin, cisplatin (Rosenberg 1965), vincristine, doxorubicinCombination chemotherapy — MOPP for Hodgkin's, DeVita 1970Herceptin (trastuzumab) — Her2+ breast cancer, FDA 1998Imatinib (Gleevec) — CML, FDA May 2001 (targeted therapy era)Checkpoint inhibitors — ipilimumab (Yervoy, 2011); Allison & Honjo Nobel 2018US Pure Food and Drug Act, 1906Sulfanilamide disaster, 1937 — 100+ deathsThalidomide — Frances Oldham Kelsey blocks US approval, 1960sKefauver-Harris Amendment, 1962 (efficacy proof required)Prescription Drug User Fee Act (PDUFA), 1992ICH guidelines — international harmonizationOswald Avery — DNA as transforming principle, 1944Rosalind Franklin — Photo 51, King's College 1952Watson & Crick — double helix, Nature Apr 25 1953Franklin died 1958 — not acknowledged in 1962 NobelMeselson-Stahl experiment — semiconservative replication, 1958Matthew Meselson & Arthur Pardee — mRNA hypothesis, 1961Marshall Nirenberg — genetic code, 1961 (Nobel 1968)Werner Arber, Hamilton Smith, Daniel Nathans — restriction enzymes, 1970s (Nobel 1978)Stanley Cohen & Herbert Boyer — recombinant DNA, Stanford/UCSF 1973Asilomar Conference on recombinant DNA safety, Feb 1975Genentech founded — Robert Swanson + Herbert Boyer, 1976First recombinant insulin (Humulin), 1982Genentech IPO, Oct 14 1980 — $35 → $88 on day oneAmgen — founded 1980; Epogen 1989Kary Mullis — PCR, Cetus 1983 (Nobel 1993)Taq polymerase — Thermus aquaticus, thermostable, 1988Fred Sanger — dideoxy sequencing, 1977 (2nd Nobel)Leroy Hood — automated sequencer, Caltech 1986Real-time PCR (qPCR) — 1992DNA microarrays — Affymetrix, 1989Köhler & Milstein — monoclonal antibodies, Cambridge 1975 (Nobel 1984)Muromonab-CD3 (OKT3) — first therapeutic mAb, 1986Rituximab — first cancer mAb, FDA 1997Humira (adalimumab) — world's top-selling drug 2012–2022Bispecific antibodies — Blinatumomab, HemlibraAntibody-drug conjugates (ADCs) — Kadcyla 2013, Enhertu 2019HGP launched — Oct 1990Francis Collins leads NIH side; James Watson initial directorCraig Venter — Celera Genomics, shotgun sequencing, 1998First draft genome — Jun 26 2000 (Clinton-Blair joint announcement)Complete genome, 2003 ($3B program)ENCODE Project — non-coding DNA annotation, 2012Sequencing cost — $100M (2001) → $1,000 (2014) → ~$200 (2024)Francisco Mojica — CRISPR naming + function hypothesis, 2005Jennifer Doudna & Emmanuelle Charpentier — CRISPR-Cas9, Science Jun 2012Feng Zhang — CRISPR in mammalian cells, MIT Jan 2013Doudna & Charpentier — Nobel Prize 2020Base editing — David Liu, Broad 2016Prime editing — David Liu, 2019Casgevy (exa-cel) — first CRISPR therapy, FDA Dec 2023 (sickle cell)Verve Therapeutics — in vivo base editing for hypercholesterolemia, 2024Lipinski's Rule of Five — drug-likeness, 1997Structure-based drug design — Kuntz DOCK, 1982Fragment-based drug discovery — Astex, 2000sPROTACs (proteolysis-targeting chimeras) — Deshaies & Crews, 2001Molecular glues — MEK, SMARCACovalent inhibitors — ibrutinib (BTK), sotorasib (KRAS G12C)CAR-T conceptual — Zelig Eshhar, 1989Carl June — first CAR-T remission in CLL, Penn 2011Kymriah (tisagenlecleucel) — FDA approved Aug 2017 (ALL)Yescarta — Oct 2017 (DLBCL)Allogeneic CAR-T — off-the-shelf, multiple candidates in trialsTIL therapy — Rosenberg, Amtagvi (lifileucel) FDA Feb 2024Stem-cell-derived therapies — iPSC-based in trialsJesse Gelsinger death — Penn 1999 (field setback)Luxturna (RPE65) — first US gene therapy, FDA Dec 2017Zolgensma — SMA, FDA May 2019 ($2.1M)AAV serotypes — AAV2, AAV5, AAV9 for different tropismCasgevy — ex vivo CRISPR, sickle cell, Dec 2023Verve VERVE-102 — LDLR base-editing trial, 2024Katalin Karikó & Drew Weissman — modified nucleosides, UPenn 2005Moderna founded, 2010BioNTech founded — Uğur Şahin & Özlem Türeci, 2008Pfizer-BioNTech BNT162b2 — COVID-19 vaccine, EUA Dec 11 2020Moderna mRNA-1273 — COVID-19 vaccine, EUA Dec 18 2020Karikó & Weissman — Nobel Prize 2023mRNA platform — cancer vaccines, rare disease in pipelineJens Juul Holst — GLP-1 characterization, 1983Exenatide (Byetta) — FDA 2005 (Amylin)Liraglutide (Victoza/Saxenda) — 2010 / 2014Semaglutide (Ozempic) — FDA Dec 2017; Wegovy Jun 2021STEP-1 trial — 14.9% weight loss at 68 weeks, 2021Tirzepatide (Mounjaro/Zepbound) — Eli Lilly, 2022/2023SURMOUNT-1 — 22.5% weight lossRetatrutide — triple agonist, Phase 2 data 2023Andrew Fire & Craig Mello — RNAi discovery, 1998 (Nobel 2006)Patisiran (Onpattro) — first siRNA therapeutic, FDA 2018Inclisiran (Leqvio) — cholesterol siRNA, FDA 2021Antisense oligonucleotides — nusinersen (Spinraza), 2016Radioligand therapies — Pluvicto (177Lu-PSMA), 2022Wilhelm Röntgen — X-rays, Würzburg Dec 1895 (Nobel 1901)CT scan — Godfrey Hounsfield, EMI 1971 (Nobel 1979)MRI — Paul Lauterbur + Peter Mansfield, 1973 (Nobel 2003)Ultrasound — Ian Donald, Glasgow 1956PET — Michael Phelps, UCLA 1973Total-body PET (EXPLORER) — UC Davis 2019 (40× sensitivity)ELISA — Engvall & Perlmann, 1971Southern blot — Edwin Southern, 1975Western blot, Northern blotFISH — fluorescence in situ hybridization, 1980sDigital PCR — 1999Liquid biopsy — ctDNA, CTCs (Grail Galleri, 2021)Sanger dideoxy — 1977454 pyrosequencing — 2005 (first NGS)Illumina Solexa — 2006; MiSeq 2011; NovaSeq 2017Illumina NovaSeq X — 2023, $200 genomePacBio SMRT — HiFi long reads, 2019Oxford Nanopore MinION — 2014, real-time portable sequencingSingle-cell sequencing — 10x Genomics Chromium, 2014Laparoscopic cholecystectomy — Mühe 1985; Mouret 1987Intuitive Surgical da Vinci — FDA 2000Endovascular repair — EVAR, Parodi 1991Cochlear implant — Graeme Clark, Melbourne 1978Organ transplant — Joseph Murray first kidney, 1954 (Nobel 1990)Heart transplant — Christiaan Barnard, Dec 1967Xenotransplant — University of Maryland pig heart, Jan 2022Cardiac pacemaker — Wilson Greatbatch, 1958Defibrillator, ICD — Michel Mirowski, Johns Hopkins 1980Continuous glucose monitors — Dexcom, Abbott FreeStyle LibreInsulin pumps — Medtronic, Tandem, OmnipodSmartphone ECG — AliveCor KardiaMobile, 2012Apple Watch AFib detection — 2017BrainGate — Donoghue lab, Brown 2004Utah array — Richard Normann, 1992Synchron Stentrode — vascular BCI, 2021 first implantNeuralink N1 — first human implant, Jan 2024Neuralink patient moves cursor by thought, Feb 2024Gleevec as template — targeted by molecular subtypeHER2 testing for trastuzumab — companion diagnostics, 1998BRCA1/BRCA2 — Mary-Claire King identification, 1990PARP inhibitors — olaparib (Lynparza), 2014Obama Precision Medicine Initiative, 2015All of Us Research Program — 1M participant cohort, NIHPharmacogenomics — CYP2D6, CYP2C19, TPMT testingJames Thomson — human embryonic stem cells, UW 1998Shinya Yamanaka — iPS cells, Kyoto 2006 (Nobel 2012)Organoids — Hans Clevers, Hubrecht 2009Organ-on-chip — Donald Ingber, Wyss Institute 20103D bioprinting — Organovo (2007), Prellis, United TherapeuticsFDA Modernization Act 2.0 — Dec 2022 (non-animal testing)Lab-grown blood vessels — first clinical transplant, Humacyte 2023Human Microbiome Project — NIH 2007–2016FMT (fecal microbiota transplant) — C. difficile standard of careRebyota — first FDA-approved FMT product, 2022Vowst — first oral microbiome therapy, 2023Allison & Honjo — checkpoint biology (CTLA-4, PD-1), Nobel 2018DeepMind AlphaFold 2 — protein structure, CASP14 2020AlphaFold 3 — protein complexes, May 2024IBM Watson Health — 2013; wound down 2022 (cautionary tale)Isomorphic Labs (DeepMind spinout), 2021Recursion Pharmaceuticals — phenomics + ML, NASDAQ 2021Insilico Medicine — AI-designed INS018_055 in Phase 2FDA AI/ML medical device pathway — 2021 frameworkClinical LLMs — Med-PaLM 2 (Google), GPT-4 on USMLE23andMe — founded 2006, IPO 2021, delisted 2024 (chapter 11 path)Theranos — collapsed 2018 (cautionary exemplar)Epic Systems, Cerner — EHR dominanceApple ResearchKit — 2015Prescription digital therapeutics — Pear Therapeutics (shut down 2023)GLP-1 via telehealth — Ro, Hims, Noo, 2023Alzheimer's — lecanemab (Leqembi) FDA 2023; modest efficacyCancer moonshot — 2016, relaunched 2022Longevity — rapamycin, senolytics, Altos Labs ($3B, 2021)Eroom's Law — pharma R&D productivity decline, Scannell 2012Antibiotic resistance — no new class since 1987 until daptomycin 2003Pandemic preparedness — CEPI, 100 Days MissionMedicine & BiotechBrian Tighe · Mind Maps
Orbital mind map. Scroll to zoom, drag to pan, or use the buttons above (+ / − / 0 keys also work). Hover a node to highlight its path to the center and the subtree beneath it.

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The center holds the topic. The six branches fan out bilaterally — three on each side — each in its own color. Sub-branches nest three levels deep under each top-level branch. Hover a leaf to trace the path back to the center; hover a branch to see everything it contains.

This is the shape the topic has when you try to hold the whole field in your head at once. It is not an argument; it is a scaffold. The essays argue against or within scaffolds like this one.

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