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Emergence of microneedles as a potential therapeutics in diabetes mellitus

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Abstract

Diabetes mellitus is a severe condition in which the pancreas produces inadequate insulin or the insulin generated is ineffective for utilisation by the body; as a result, insulin therapy is required for control blood sugar levels in patients having type 1 diabetes and is widely recommended in advanced type 2 diabetes patients with uncontrolled diabetes despite dual oral therapy, while subcutaneous insulin administration using hypodermic injection or pump-mediated infusion is the traditional route of insulin delivery and causes discomfort, needle phobia, reduced adherence, and risk of infection. Therefore, transdermal insulin delivery has been extensively explored as an appealing alternative to subcutaneous approaches for diabetes management which not only is non-invasive and easy, but also avoids first-pass metabolism and prevents gastrointestinal degradation. Microneedles have been commonly investigated in human subjects for transdermal insulin administration because they are minimally invasive and painless. The different types of microneedles developed for the transdermal delivery of anti-diabetic drugs are discussed in this review, including solid, dissolving, hydrogel, coated, and hollow microneedles. Numerous microneedle products have entered the market in recent years. But, before the microneedles can be effectively launched into the market, a significant amount of investigation is required to address the numerous challenges. In conclusion, the use of microneedles in the transdermal system is an area worth investigating because of its significant benefits over the oral route in the delivery of anti-diabetic medications and biosensing of blood sugar levels to assure improved clinical outcomes in diabetes management.

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Abbreviations

Arg:

Arginine

BGLs:

Blood glucose levels

CMC:

Carboxymethyl cellulose

CMCS:

Carboxymethyl chitosan

CLA:

Conjugated linoleic acid

CCA:

CLA-CMCS-Arg polymer

DM:

Diabetes mellitus

EE-ASI-1:

Enhanced epidermal antigen-specific immunotherapy trial-1

GUMP:

Glucose measurement using microneedle patches

HbA1c:

Hemoglobin A1c

HLA:

Human leukocyte antigen

ISF:

Interstitial fluid

LA:

Lauric acid

MBGs:

Mesoporous bioactive glasses

MSN:

Mesoporous silica nanoparticle

MNs:

Microneedles

PTMs:

Phase transition microneedles

PVPMAA:

Poly (vinylpyrrolidone-co-methacrylic) acid

PDA:

Polydopamine

PGA:

Polyglycolic acid

PLA:

Polylactic acid

LGA:

Polylactic-co glycolic acid

PVP:

Polyvinylpyrrolidone

RS-PGC-MNs:

Rapidly separating genepin-crosslinked gelatin (MNs) mounted on polyvinyl alcohol-coated polylactic acid MNs

ROS:

Reactive oxygen species

SC:

Subcutaneous

T1DM:

Type 1 diabetes mellitus

T2DM:

Type 2 diabetes mellitus

WIPO:

World Intellectual Property Organization

ZnO QDs:

Zinc oxide quantum dots

ZP:

Zosano Pharma

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Acknowledgements

The authors would like to thank Chitkara College of Pharmacy, Chitkara University, Punjab, India, for providing facilities for completion of this review.

Author contribution.

IZ, SS, and TB: conceived the study and wrote the first draft of the paper; NS, TN, VS, and SF: data compilation; IZ, NKF, and SB: figure work; AAH, SNW, and CVDLA: editing; LA and SBU: proofread.

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Correspondence to Sukhbir Singh or Tapan Behl.

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All the authors have approved the manuscript for publication.

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The authors declare no competing interests.

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Responsible Editor: Philippe Garrigues

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Zahoor, I., Singh, S., Behl, T. et al. Emergence of microneedles as a potential therapeutics in diabetes mellitus. Environ Sci Pollut Res 29, 3302–3322 (2022). https://doi.org/10.1007/s11356-021-17346-0

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  • DOI: https://doi.org/10.1007/s11356-021-17346-0

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