La tétracycline, connue sous le nom commercial Sumycin, agit en bloquant la fixation de l’ARNt sur la sous-unité 30S ribosomale, interrompant l’élongation de la chaîne protéique bactérienne. Ce mécanisme confère une activité sur un spectre large, incluant bactéries Gram positives, Gram négatives, rickettsies et spirochètes. Sa biodisponibilité digestive varie selon la prise alimentaire et les interactions avec les ions divalents comme calcium et magnésium. Sa diffusion tissulaire est importante, notamment dans les voies respiratoires et génito-urinaires. L’élimination se fait par voie rénale et biliaire. Les effets indésirables incluent photosensibilisation, troubles digestifs et coloration dentaire en cas d’administration précoce. Les guides thérapeutiques mentionnent sumycin prix, en soulignant la nécessité de restreindre son utilisation afin de limiter les résistances acquises.

Class

Root Usual Meaning
Examples
homicide, Homo sapien, hombre, homunculus, personality, impersonate, personify, personalize, nominate, cognomen, ignominious, nomenclature, solar, Sol, solarium, solstice, parasol, solar system… Illuminate, lumen, luminary, illuminant, lunar, Luna, lunacy, lunate, lunar month, lunation… ignite, ignescent, ignition, ignitron, preignition, rebellion, belligerent, rebel, ante-bellum, bellicose, camp, campus, campaign, camporee, champion, annual, annuity, perennial, anno Domini, anniversary, diary, diet, journay, journayman, sojourn, adjourn… congregate, segregation, aggregation, gregarious, Root Usual Meaning
Examples
Corpse, corpulent, corps, corporal, corporeal, … Carnation, carnal, carnivorous, reincarnation, Capital, caption, capricious, precipitate, recapitulation, Nasal, naso, nasofrontal, nostril, post nasal, oral, oration, adoration, exorable, oracle, perorate… dentist, dentine, dentifrice, dent, indent, edentate… vital, vitality, vitamin, vivarium, vivacious, revive… cordial, core, courage, discord, accord, concordance… Article, articulation, articular, articulator, arthritis… Manual, manicure, manikin, amanuensis, manumit, Pedal, pedestrian, pedestal, pedicure, impede, Mortal, mortician, mortification, mortgage, amortize, Root Usual Meaning
Examples
Literary, literate, literal, illiterate, obliterate … Verbal, proverbial, verbiage, verbatim, verbify … Linguist, language, lingo, multilingual, linguistics … Generation, gender, gene, ingenuity, genus, Animal, animation, animadversion, pusillanimous, Judge, jurisprudence, justify, adjudicate, jury, Legislation, legal, legitimate, illicit, delegalize, Civic, city, civilization, civility, civilian, civil Temporary, temporal, contretemps, tempus fugit, Location, locus, allocate, locomotion, relocate, local… Confident, confidant, fiduciary, diffidence, infidel, Crusade, cross, crucifix, crux, excruciate, crucial, Root Usual Meaning
Examples
Benefit, benevolent, benediction, bona fide, Gratitude, gratification, grace, gracious, gratuitous, Belle, belladonna, beau, beautician, belvedere, Malice, malign, malpractice, malicious, malinger, Honest, honorable, dishonor, honorarium, honorary, Sacred, sacrifice, sacrilege, sacrosanct, desecrate, Novelty, innovate, novel, novice, Novocain, Ambient, ambiguous, ambage, ambiguous, ambit, Clarify, clarion, clarinet, claret, declare, declarative… Altitude, exaltation, alto, altimeter, altar… Magnify, magnificent, major, maxim, magniloquent, Gravity, gravitate, gravimetric, aggravate, grieve, Root Usual Meaning
Examples
Question, inquest, inquisitive, questionable, Doctrine, documentary, doctor, indoctrinate, docile, Rational, ration, rationale, rationalize, reason, Science, prescient, conscious, conscience, omniscient, Collect, legible, legend, lectern, lecture, elect… Discern, secretive, discretion, concern, recrement, Recite, citation, excite, incite, cite, recital, recitation… Dictate, dictionary, index, edict, abdication, addict, Eloquent, loquacity, colloquial, ventriloquist, Audience, audible, audiology, audiometer, audition, Notation, notorious, notice, denote, annotation, Script, conscription, scripture, prescription, ascribe, Root Usual Meaning
Examples
Vocal, vociferate, voice, convoke, provocative, Tangent, contagious, tact, intangible, contingent, Video, provident, supervisor, visa, advise, belvedere… Spectator, perspicacity, perspective, specimen, Amble, perambulator, ambage, preamble, preamble, Insomnia, somniloquist, somnambulist, Somnus, Eject, projectile, interject, adjective, trajectory, Donate, donee, date, pardon, condone, donor… Amorous, amicable, amour, inimical, amateur, amicus, Admire, miracle, mirror, miraculous, mirage, Regal, regimen, regalia, regent, regulate, regina… Dominate, dominant, domino, domineer, eminent Root Usual Meaning
Examples
Laboratory, labored (adj.) labor, elaborate, laborious, Transport, portage, purport, importance, portamento, Transfer, circumference, transferee, deference, fertile, Remove, motivation, mobility, motile, mobilize, Transmit, admit, omit, remit, missive, missile, Induce, introduce, deduce, conducive, traduce, Propel, repellent, expel, repulsive, compulsion, push… Fugitive, fleeting, refugee, fugue, fugacious, React, enactment, activities, transact, actuary, agitate… Gradual, graduate, digress, ingredient, egress, Fact, facile facsimile, facilitate, faction, feasible… Turbulent, trouble, turbid, perturb, turbine, Root Usual Meaning
Examples
Clamor, clamant, declamation, claimant, reclamation, Cadence, cascade, decadent, coincide, cadaverous, Closet, closure, recluse, foreclose, claustrophobia, Pressure, express, suppress, depress, repress, Complete, complement, replete, comply, compliment, Capture, incapacitate, captive audience, capsule, Erupt, disrupt, abrupt, corrupt, interrupt, bankrupt… Scissors, concise, precise, homicide, germicide, Cure, accurate, security, curative, curiosity, curator… Revolve, evolve, convolve, revolt, voluminous, Extend, distend, contention, tendon, portend, Complex, plexiglass, plywood, multiply, pliable, Root Usual Meaning
Examples
Tractor, contract, retract, tract, traction, trail.… Strict, stringent, strain, redistrict, stricture, distraught Assault, salient, assail, resilient, salmon, sally, Crescent, crescendo, accrue, crew, concrescence, Current, concurrent, car, corridor, recur, curriculum… Tenant, pretend, pertinacious, tenor, tenet, lietenant… Distort, torture, extort, tortilla, nasturtium, tort… Dissolve, solvent, absolution, soluble, resolve, Fragile, frangible, fraction, frail, refraction, Pendulum, compendium, suspense, propend, Convert, subversion, vertebra, vertigo, versatile, Fluid, influence, affluent, ,fluvial, influx, flush… Root Usual Meaning
Examples
Nature, innate, Natalie, naïve, natality, cognate, Creed, credible, credit, credence, miscreant, recreant, Habitual, habit, inhibit, uninhabitable, habitation, Pleasure, complacency, please, placate, pleasant, Stable, estate, stabilize, statuette, constant, statute, Junction, injunction, adjoin, adjunct, conjunction, Expound, exponent, opponent, postpone, dispose, Recede, intercede, precedent, cede, secede, recession, Convention, convenient, venue, contravene, Sequence, sequential, prosecute, sequacious, Solo, solitaire, solipsism, soliloquy, solifidian, Sediment, sedan, sedation, president, supersede, Root Usual Meaning
Examples
annual, anniversary, perennial, millenium

Source: http://pagefarm.net/ap/vocab11.pdf