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Study · Animal study (in vivo) · rat · 2014

7 results

Comparative activity of proline-containing dipeptide noopept and inhibitor of dipeptidyl peptidase-4 sitagliptin in a rat model of developing diabetes.

Ostrovskaya RU, Ozerova IV, Gudascheva TA, Kapitsa IG, Ivanova EA, Voronina TA, Seredenin SB

Bulletin of experimental biology and medicine15 Jan 2014Cited by 5 (Europe PMC)

Summary

The text of this summary is not shown here, because the article license does not allow reuse. Read it at the source (opens in a new tab)

Text rights: Publisher copyright. Results still quote short attributed sentences.

Results from this study7

7 results from studies that gave the peptide. No result from this study comes from people.

  1. 01AnimalAnimal study (in vivo)Efficacy outcome

    In diabetic rats, Noopept normalized basal blood glucose the day after streptozotocin administration.

    In plain wordsIn rats with developing diabetes, Noopept normalized basal blood glucose compared with the abnormal glucose reported in active controls.

    Outcome
    DecreaseBasal blood glucose after streptozotocin
    Study

    ratn: not reported in source

    Adult male Wistar rats with streptozotocin-induced developing diabetes
    Comparator
    Active control
    Outcome group
    Glycemic control · Metabolic and weight
    Studied dose
    5 mg/kg · oral · Before each toxin injection and 16 days after the streptozotocin courseAs given in this study (rat).

    Source sentences

    Summary
    Noopept normalized the basal blood glucose level and tolerance to glucose load on the next day after administration of streptozotocin.
    3 context sentences
    Summary · context
    In active control group, spontaneously increase glucose level and reduced tolerance to glucose load (1000 mg/kg intraperitoneally) were observed on the next day after the third administration of toxin.
    Summary · context
    Developing diabetes was modeled on adult male Wistar rats by repeated intraperitoneal injections of streptozotocin in a subdiabetogenic dose of 30 mg/kg for 3 days.
    Summary · context
    Proline-containing dipeptide drug Noopept or a standard diabetic drug dipeptidyl peptidase-4 inhibitor sitagliptin was administered per os in a dose of 5 mg/kg before each injection of the toxin and then for 16 days after streptozotocin course.
  2. 02AnimalAnimal study (in vivo)Efficacy outcome

    In diabetic rats, Noopept normalized glucose tolerance the day after streptozotocin administration.

    In plain wordsIn rats with developing diabetes, Noopept normalized glucose tolerance compared with the impaired tolerance reported in active controls.

    Outcome
    IncreaseGlucose tolerance after streptozotocin
    Study

    ratn: not reported in source

    Adult male Wistar rats with streptozotocin-induced developing diabetes
    Comparator
    Active control
    Outcome group
    Glycemic control · Metabolic and weight
    Studied dose
    5 mg/kg · oral · Before each toxin injection and 16 days after the streptozotocin courseAs given in this study (rat).

    Source sentences

    Summary
    Noopept normalized the basal blood glucose level and tolerance to glucose load on the next day after administration of streptozotocin.
    3 context sentences
    Summary · context
    In active control group, spontaneously increase glucose level and reduced tolerance to glucose load (1000 mg/kg intraperitoneally) were observed on the next day after the third administration of toxin.
    Summary · context
    Developing diabetes was modeled on adult male Wistar rats by repeated intraperitoneal injections of streptozotocin in a subdiabetogenic dose of 30 mg/kg for 3 days.
    Summary · context
    Proline-containing dipeptide drug Noopept or a standard diabetic drug dipeptidyl peptidase-4 inhibitor sitagliptin was administered per os in a dose of 5 mg/kg before each injection of the toxin and then for 16 days after streptozotocin course.
  3. 03AnimalAnimal study (in vivo)Efficacy outcome

    In diabetic rats, Noopept's normalizing effect on basal glucose persisted until the experiment ended.

    In plain wordsIn rats with developing diabetes, Noopept's normalizing effect on basal glucose persisted until the experiment ended.

    Outcome
    DecreaseBasal blood glucose effect persistence
    Study

    ratn: not reported in source

    Adult male Wistar rats with streptozotocin-induced developing diabetes
    Outcome group
    Glycemic control · Metabolic and weight
    Studied dose
    5 mg/kg · oral · Before each toxin injection and 16 days after the streptozotocin courseAs given in this study (rat).

    Source sentences

    Summary
    The effect of Noopept persisted to the end of the experiment.
    3 context sentences
    Summary · context
    Noopept normalized the basal blood glucose level and tolerance to glucose load on the next day after administration of streptozotocin.
    Summary · context
    Developing diabetes was modeled on adult male Wistar rats by repeated intraperitoneal injections of streptozotocin in a subdiabetogenic dose of 30 mg/kg for 3 days.
    Summary · context
    Proline-containing dipeptide drug Noopept or a standard diabetic drug dipeptidyl peptidase-4 inhibitor sitagliptin was administered per os in a dose of 5 mg/kg before each injection of the toxin and then for 16 days after streptozotocin course.
  4. 04AnimalAnimal study (in vivo)Efficacy outcome

    In diabetic rats, Noopept's normalizing effect on glucose tolerance persisted until the experiment ended.

    In plain wordsIn rats with developing diabetes, Noopept's normalizing effect on glucose tolerance persisted until the experiment ended.

    Outcome
    IncreaseGlucose tolerance effect persistence
    Study

    ratn: not reported in source

    Adult male Wistar rats with streptozotocin-induced developing diabetes
    Outcome group
    Glycemic control · Metabolic and weight
    Studied dose
    5 mg/kg · oral · Before each toxin injection and 16 days after the streptozotocin courseAs given in this study (rat).

    Source sentences

    Summary
    The effect of Noopept persisted to the end of the experiment.
    3 context sentences
    Summary · context
    Noopept normalized the basal blood glucose level and tolerance to glucose load on the next day after administration of streptozotocin.
    Summary · context
    Developing diabetes was modeled on adult male Wistar rats by repeated intraperitoneal injections of streptozotocin in a subdiabetogenic dose of 30 mg/kg for 3 days.
    Summary · context
    Proline-containing dipeptide drug Noopept or a standard diabetic drug dipeptidyl peptidase-4 inhibitor sitagliptin was administered per os in a dose of 5 mg/kg before each injection of the toxin and then for 16 days after streptozotocin course.
  5. 05AnimalAnimal study (in vivo)Efficacy outcome

    In diabetic rats, Noopept had a weaker early effect on basal glucose than sitagliptin.

    In plain wordsIn rats with developing diabetes, Noopept had a weaker early effect on basal glucose than sitagliptin.

    Outcome
    DecreaseEarly basal glucose effect
    Study

    ratn: not reported in source

    Adult male Wistar rats with streptozotocin-induced developing diabetes
    Comparator
    Sitagliptin
    Outcome group
    Glycemic control · Metabolic and weight
    Studied dose
    5 mg/kg · oral · Before each toxin injection and 16 days after the streptozotocin courseAs given in this study (rat).

    Source sentences

    Summary
    At early terms of the experiment, sitagliptin was somewhat superior to Noopept by the effect on baseline glucose level, but was inferior by the influence on glucose tolerance..
    2 context sentences
    Summary · context
    Developing diabetes was modeled on adult male Wistar rats by repeated intraperitoneal injections of streptozotocin in a subdiabetogenic dose of 30 mg/kg for 3 days.
    Summary · context
    Proline-containing dipeptide drug Noopept or a standard diabetic drug dipeptidyl peptidase-4 inhibitor sitagliptin was administered per os in a dose of 5 mg/kg before each injection of the toxin and then for 16 days after streptozotocin course.
  6. 06AnimalAnimal study (in vivo)Efficacy outcome

    In diabetic rats, Noopept had a stronger early effect on glucose tolerance than sitagliptin.

    In plain wordsIn rats with developing diabetes, Noopept improved glucose tolerance more than sitagliptin early in the experiment.

    Outcome
    IncreaseEarly glucose tolerance effect
    Study

    ratn: not reported in source

    Adult male Wistar rats with streptozotocin-induced developing diabetes
    Comparator
    Sitagliptin
    Outcome group
    Glycemic control · Metabolic and weight
    Studied dose
    5 mg/kg · oral · Before each toxin injection and 16 days after the streptozotocin courseAs given in this study (rat).

    Source sentences

    Summary
    At early terms of the experiment, sitagliptin was somewhat superior to Noopept by the effect on baseline glucose level, but was inferior by the influence on glucose tolerance..
    2 context sentences
    Summary · context
    Developing diabetes was modeled on adult male Wistar rats by repeated intraperitoneal injections of streptozotocin in a subdiabetogenic dose of 30 mg/kg for 3 days.
    Summary · context
    Proline-containing dipeptide drug Noopept or a standard diabetic drug dipeptidyl peptidase-4 inhibitor sitagliptin was administered per os in a dose of 5 mg/kg before each injection of the toxin and then for 16 days after streptozotocin course.
  7. 07AnimalAnimal study (in vivo)Efficacy outcome

    In diabetic rats, Noopept's effect on glucose tolerance was twice that of sitagliptin at the experiment's end.

    In plain wordsIn rats with developing diabetes, Noopept's final effect on glucose tolerance was twice that of sitagliptin.

    Outcome
    IncreaseFinal glucose tolerance effect
    Study

    ratn: not reported in source

    Adult male Wistar rats with streptozotocin-induced developing diabetes
    Comparator
    Sitagliptin
    Outcome group
    Glycemic control · Metabolic and weight
    Studied dose
    5 mg/kg · oral · Before each toxin injection and 16 days after the streptozotocin courseAs given in this study (rat).

    Measurements

    Relative glucose tolerance effect
    2 times
    Noopept versus sitagliptin at experiment end

    Source sentences

    Summary
    By the end of the experiment, Noopept significantly (by 2 times) surpassed sitagliptin by its effect on glucose tolerance.
    2 context sentences
    Summary · context
    Developing diabetes was modeled on adult male Wistar rats by repeated intraperitoneal injections of streptozotocin in a subdiabetogenic dose of 30 mg/kg for 3 days.
    Summary · context
    Proline-containing dipeptide drug Noopept or a standard diabetic drug dipeptidyl peptidase-4 inhibitor sitagliptin was administered per os in a dose of 5 mg/kg before each injection of the toxin and then for 16 days after streptozotocin course.

AI wrote and checked these results. AI can make mistakes, so check important results against the source.

Version history

PepBank keeps every version of the data on this study. Status changes from Retraction Watch, Europe PMC and Crossref are listed with their source.

  1. Version 2Current

    21 Oct 2026, 15:58 UTC

    Study results updated

  2. Version 1

    21 Oct 2026, 12:50 UTC

    First added · source update from Europe PMC

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