Intranasal insulin-like growth factor I (IGF-I) as a plausible future treatment of depression
Medical Hypotheses,  Clinical Article

Paslakis G et al. – Brain–derived neurotrophic factor and insulin–like growth factor–I (IGF–I) seem to act synergistically in the same cascade of transmission and neuroplasticity. In order to avoid the pitfalls of systemic application while directly targeting central nervous circuitries, the clinical intranasal administration of IGF–I appears to be a plausible and promising treatment option of depression.

Methods
  • Depression remains a highly prevalent and mostly recurrent disorder causing an increased need to optimize and broaden the current therapy options.
  • An enormous body of evidence links the regulation of specific neurotrophic proteins, like the brain-derived neurotrophic factor (BDNF), to depression and it may be assumed that the behavioral effects of antidepressants require functional BDNF signaling in the brain.
  • Another neurotrophin, insulin-like growth factor-I (IGF-I), also produces antidepressant-like behavioral effects.
  • Data have shown that BDNF plus IGF-I are more effective than either neurotrophin alone in activating neurotrophic cascades and promoting survival of hippocampal neurons.
  • In fact, it has been suggested that the increase in hippocampal BDNF following antidepressant treatment or physical exercise in animal models is IGF-I-dependent and that antidepressant treatment increases IGF-I in human cerebrospinal fluid (CSF).

Please login or register to follow this author.
► Click here to access PubMed, Publisher and related articles...
<< Previous Article | Next Article >>

Your Unread Messages in Medical Student

See All >> Messages include industry-sponsored communications and special communications from MDLinx

Most Popular Medical Student Articles

1 Midlife dietary vitamin D intake and subsequent performance in different cognitive domains Annals of Nutrition and Metabolism, September 16, 2014    Clinical Article

2 Regular fish consumption and age-related brain gray matter loss American Journal of Preventive Medicine, August 15, 2014    Clinical Article

3 Habitual intake of fruit juice predicts central blood pressure Appetite, October 24, 2014    Clinical Article

4 Oral bisphosphonate use and total knee/hip implant survival: Validation of results in an external population-based cohort Arthritis & Rheumatism, August 13, 2014    Clinical Article

5 Total, caffeinated and decaffeinated coffee and tea intake and gastric cancer risk: Results from the EPIC cohort study International Journal of Cancer, October 3, 2014    Clinical Article

6 Effects of tea intake on blood pressure: A meta-analysis of 21 randomized controlled trials JACC - Journal of the American College of Cardiology, October 22, 2014    Clinical Article

7 Effect of ginger (Zingiber officinale) on heavy menstrual bleeding: a placebo-controlled, randomized clinical trial Phytotherapy Research, October 13, 2014    Clinical Article

8 Chocolate consumption and risk of heart failure in the Physicians Health Study European Journal of Heart Failure, October 17, 2014    Clinical Article

9 Intake of fruit and vegetables and risk of bladder cancer: A dose-response meta-analysis of observational studies Cancer Causes and Control, October 10, 2014    Clinical Article

10 Fish consumption and risk of rheumatoid arthritis: A dose-response meta-analysis Arthritis Research & Therapy, October 7, 2014    Evidence Based Medicine    Review Article

11 Trazodone improves sleep parameters in Alzheimer's disease patients: A randomized, double-blind, and placebo-controlled study The American Journal of Geriatric Psychiatry, October 15, 2014    Clinical Article

12 Serum 25-hydroxyvitamin D levels and metabolic health status in extremely obese individuals Obesity, October 10, 2014    Review Article

13 Effects of decontamination of the oropharynx and intestinal tract on antibiotic resistance in ICUs: a randomized clinical trial JAMA, October 10, 2014    Evidence Based Medicine    Clinical Article

14 Diet and inflammatory bowel disease: review of patient-targeted recommendations Clinical Gastroenterology and Hepatology , October 10, 2014    Review Article

15 Vitamin B12 and folate deficiency in chronic heart failure Heart, October 24, 2014    Clinical Article

16 Nutrition for the prevention and treatment of chronic kidney disease in diabetes Canadian Journal of Diabetes, September 26, 2014    Review Article

17 Effect of pentoxifylline on renal function and urinary albumin excretion in patients with diabetic kidney disease: The PREDIAN trial Journal of the American Society of Nephrology, June 30, 2014    Clinical Article

18 Vancomycin-resistant enterococci colonization among dialysis patients: A meta-analysis of prevalence, risk factors, and significance American Journal of Kidney Diseases, July 18, 2014    Review Article

19 Vitamin D analogue therapy, cardiovascular risk and kidney function in people with Type 1 diabetes mellitus and diabetic nephropathy: a randomized trial Diabetic Medicine, October 13, 2014    Clinical Article

20 Age-related cataract in men in the selenium and vitamin E cancer prevention trial eye endpoints study: A randomized clinical trial JAMA Ophthalmology, October 3, 2014    Evidence Based Medicine    Clinical Article

Indexed Journals in Medical Student: Academic Medicine, BMC Medical Education, Medical Teachermore