ABSTRACT
Purpose
Iontophoretic mediated transdermal delivery of ferric pyrophosphate (FPP) in combination with microneedle pretreatment was investigated as a potential treatment for iron deficiency anemia (IDA).
Methods
In vitro transdermal delivery studies were performed using hairless rat skin and pharmacodynamic studies were performed in hairless anemic rat model. The hematological and biochemical parameters like hemoglobin, hematocrit and % serum transferrin were monitored in rats at healthy, anemic condition and post treatment. Micropores created by the microneedles were visualized in histological skin sections after staining with hemotoxylin and eosin. The recovery of micropores was investigated in vivo by measuring Transepidermal water loss (TEWL) at different time points.
Results
The passive, microneedle and iontophoresis mediated delivery did not lead to significant improvement in hematological and biochemical parameters in anemic rats, when used individually. When iontophoresis (0.15 mA/cm2 for 4 hours) was combined with microneedle pretreatment (for 2 min), therapeutically adequate amount of FPP was delivered and there was significant recovery of rats from IDA.
Conclusions
Microneedle and iontophoresis mediated delivery of iron via transdermal route could be developed as a potential treatment for IDA. The transdermal controlled delivery of iron could become a potential, safe and effective alternative to parenteral iron therapy.
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Abbreviations
- FPP:
-
ferric pyrophosphate
- Hb:
-
hemoglobin
- HCT:
-
hematocrit
- HPMC:
-
hydroxypropyl methyl cellulose
- ID:
-
iron deficiency
- IDA:
-
iron deficiency anemia
- MCH:
-
mean corpuscular hemoglobin
- MCHC:
-
mean corpuscular hemoglobin concentration
- MCV:
-
mean corpuscular volume
- MDA:
-
malondialdehyde
- RDWc:
-
red blood cell distribution width
- SI:
-
serum iron
- TBARS:
-
thiobarbituric acid reactive substances
- TEWL:
-
transepidermal water loss
- TIBC:
-
total iron binding capacity
- %TS:
-
% transferrin saturation
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Acknowledgments and Disclosures
This project was funded by Grant # HD061531A from Eunice Kennedy Shriver National Institute of Child Health and Human development (NICHD).
The authors would like to thank Dr. Mohammad Khalid Ashfaq (Senior Research Scientist, NCNPR, The University of Mississippi) for the VetScan HM2 Hematology instrument and Mr. Rajnish Sahu (NCNPR, The University of Mississippi) for his help with RBC morphology studies. The authors also would like to acknowledge the valuable input from Dr. Phaniraj Cegu, Pharmacist, Walgreens, Memphis, TN.
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Modepalli, N., Jo, S., Repka, M.A. et al. Microporation and ‘Iron’tophoresis for Treating Iron Deficiency Anemia. Pharm Res 30, 889–898 (2013). https://doi.org/10.1007/s11095-012-0930-2
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DOI: https://doi.org/10.1007/s11095-012-0930-2