What's the difference between progression and retrogression?

Progression


Definition:

  • (n.) The act of moving forward; a proceeding in a course; motion onward.
  • (n.) Course; passage; lapse or process of time.
  • (n.) Regular or proportional advance in increase or decrease of numbers; continued proportion, arithmetical, geometrical, or harmonic.
  • (n.) A regular succession of tones or chords; the movement of the parts in harmony; the order of the modulations in a piece from key to key.

Example Sentences:

  • (1) An effective graft-surveillance protocol needs to be applicable to all patients; practical in terms of time, effort, and cost; reliable; and able to detect, grade, and assess progression of lesions.
  • (2) The fine structure of neurofibrillary tangles in the hippocampal gyrus, substantia nigra, pontine nuclei and locus coeruleus of the brain was postmortem studied in a case of progressive supranuclear palsy.
  • (3) A progressively more precise approach to identifying affected individuals involves measuring body weight and height, then energy intake (or expenditure) and finally the basal metabolic rate (BMR).
  • (4) These results suggest that the pelvic floor is affected by progressive denervation but descent during straining tends to decrease with advancing age.
  • (5) The epidemiology of HIV infection among women and hence among children has progressively changed since the onset of the epidemic in Western countries.
  • (6) In this review, we demonstrate that serum creatinine does not provide an adequate estimate of glomerular filtration rate (GFR), and contrary to recent teachings, that the slope of the reciprocal of serum creatinine vs time does not permit an accurate assessment of the rate of progression of renal disease.
  • (7) (ii) A progressive disappearance of the immunoreactive hypendymal cells.
  • (8) DNA in situ is progressively denatured when the cells or nuclei are treated with increasing concentration of acridine orange (AO).
  • (9) This experimental system allows separation of three B lymphocyte developmental stages: early differentiation in vitro, progression to IgM secretion in vivo, and late differentiation dependent upon mature T lymphocytes in vivo.
  • (10) Periodontal disease activity is defined clinically by progressive loss of probing attachment and radiographically by progressive loss of alveolar bone.
  • (11) In the patients who have died or have been classified as slowly progressive the serum 19-9 changes ranged from +13% to +707%.
  • (12) Thus, our results indicate that calbindin-D28k is a useful marker for the projection system from the matrix compartment and that its expression is modified in patients with progressive supranuclear palsy and striatal degeneration.
  • (13) The risk of recurrence and progression in 170 patients presenting with pTa urothelial tumours of the bladder has been estimated so that follow-up can be rationalised.
  • (14) The relative strength of the progressions varies with excitation wavelength and this, together with the absence of a common origin, indicates the existence of two independent emitting states with 0-0' levels separated by either 300 or 1000 cm-1.
  • (15) Progressive sporadic myopathy in association with Down's syndrome has not been reported previously.
  • (16) After local injection of sodium iodoacetate osteoarthritic reactions will progress within 2-4 months.
  • (17) Damage to this innervation is often initiated by childbirth, but appears to progress during a period of many years so that the functional disorder usually presents in middle life.
  • (18) These observations indicate that lipoprotein Lp(a) concentrations can be altered pharmacologically and that the progression of cardiovascular disease may be altered through changes in lipoprotein (a) levels.
  • (19) Interphase death thus involves a discrete, abrupt transition from the normal state and is not merely the consequence of progressive and degenerative changes.
  • (20) Serial measurements demonstrated a good correlation between enolase and NSE serum levels and the progression of the disease.

Retrogression


Definition:

  • (n.) The act of retrograding, or going backward; retrogradation.
  • (n.) Backward development; a passing from a higher to a lower state of organization or structure, as when an animal, approaching maturity, becomes less highly organized than would be expected from its earlier stages or known relationship. Called also retrograde development, and regressive metamorphism.

Example Sentences:

  • (1) After violence had run its bloody course, the country’s rulers conceded it had been a catastrophe that had brought nothing but “grave disorder, damage and retrogression”.
  • (2) Thus it is clear that DAB induced hepatoma exhibits retrogressive change in hepatic differentiation in its isozyme profile.
  • (3) Theophyllin and puromycine, inhibitors of the enzyme phosphodiesterase and AMPc are all able to inhibit the retrogression of mullerian ducts in the female chick embryo, grafted with an embryonic testis.
  • (4) Beatrix Campbell, in a letter to the London Review of Books this January, mentions Thatcher's "retrogressive modernisation", as described by Hall.
  • (5) Treated with TCM of Ziyin Xiehuo, (nourish vital essence reducing intense internal heat) and remitted, the levels of serum FSH, LH, E2 descend significantly, the volume of uterus and ovary reduce markedly, secondary sexual characteristics retrogress evidently, while the features of intense internal heat due to deficiency of vital essence mitigate obviously.
  • (6) Cavenagh said although the arrest was lawful under NT legislation, the paperless arrest scheme was “retrogressive” and unjustifiable preventive detention.
  • (7) Rabbits given a single high dose of digitoxin and some of the antiarrhythmic drugs and those given a small dose of digitoxin for only four days, presented a retrogressive increase of digitoxin level in serum 5-6 days later.
  • (8) Possibly even retrogressive changes are occurring, except in those rare sub-populations in which special social and cultural practices tend to favor selective perpetuation of characteristics which are usually viewed as beneficial.
  • (9) Detailed morphological studies have shown that posttraumatic osteomyelitis often begins with a necrosis of the outer tangential lamella of the tubular bone partly promoted by partial periosteal retrogression, possibly followed by a necrosis of the fracture ends caused by a disturbance of the medullary blood circulation.
  • (10) Rationality belongs to the individual,” Laclau writes, characterising the anti-populist thesis, and when the individual takes part in a crowd or a mass movement they are subject to the most criminal or beastly elements of that group and undergo a “biological retrogression” to a less enlightened state of being.
  • (11) "Retrogression is what you talk about in human rights when you go backwards, and that is what we are seeing now.
  • (12) Different tendencies can be observed in the different types of sports: skiing accidents have, after a long period of retrogression until 1973, shown a noticeable augmentation again.
  • (13) In chronic infections and parasitoses they evoke a retrogression of the fatty tissue (cachexia).
  • (14) From the results the tendency of a retrogression of the holiday effect is to be read off in the course of years.
  • (15) Since neuroretinopathy consequentially worsens both the subjective (visual acuity, sensitivity to the contrast) and objective (electric activity) sight functions, the appropriate attempt is to be made in achieving rapidly retrogression of pathologic retinal changes by modification of dialysis process.
  • (16) The high grade destruction of muscle tissue leads to a not retrogressive stenosis, even after sanitation of biliary tract, which principally should be discised.
  • (17) In 7 cases a complete retrogression of the lodge to the size of the urethra could be proved radiologically.
  • (18) Concerning personality, the children showed elements of "dependence" "retrogression" and "maladaptation to school (kindergarten)".
  • (19) Treatment with neomercazole had shown, good correlation between time lag and the retrogressive changes.
  • (20) After administration of testosterone propionate to male chick embryos and chickens, their testis have an activity, on the retrogression of mullerian ducts, much more important than that observed in testis of normal subjects of the same age, activity measured by grafting testis fragments in undifferentiated female chick embryos.