Evidence map›Paper›PMID 29858819›Full record

ArticleDrug delivery and translational research2018

Skin drug permeability and safety through a vibrating solid micro-needle system.

Ting-Ting Liu, Kai Chen, Qiao Wang

Abstract read
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Article in Drug delivery and translational research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Ting-Ting LiuSchool of Mechanical Engineering, Hangzhou Dianzi University, Zhejiang, 310018, Hangzhou, China.
Kai ChenSchool of Mechanical Engineering, Hangzhou Dianzi University, Zhejiang, 310018, Hangzhou, China. kchen@hdu.edu.cn.
Qiao WangInstitute of Metaria Medica, Zhejiang Academy of Medical Sciences, Zhejiang, 310013, Hangzhou, China.

Funding

National Natural Science Foundation of China 51275142
6 · The paper itself

Abstract

Micro-needles and sonophoresis are two physical methods for enhancing skin permeation for transdermal drug delivery. A solid micro-needle system with vertical vibration was integrated and its effects on transdermal drug delivery were studied. Evan's blue (EB) staining and histological evaluation were performed to reveal the skin morphology and micro-conduits created by vibrating micro-needles. Trans-epidermal water loss (TEWL) and infection studies on rat's skin after vibrating micro-needle treatment were performed to evaluate the safety of the treatment. In vivo insulin delivery and tetramethylpyrazine hydrochloride (TMPH) permeation were carried out to assess the effectiveness of the transdermal drug delivery using the vibrating micro-needle system. The structural integrity of vibrated micro-needles was studied through SEM photos. EB staining observation showed that EB has diffused significantly on the skin surface treated with vibrating micro-needles. The micro-conduits were seen by histological visualization. TEWL values increased significantly after treatment as vibration frequency increased. The infection evaluation showed a slight increase of white blood cell number resulted from vibrating micro-needle treatment. The in vivo insulin absorption experiment demonstrated an enhanced transdermal delivery of insulin through vibrating micro-needles treatment, and the effectiveness of blood glucose level increased with increasing vibration frequency. The TMPH permeation study showed an obvious enhanced skin permeability due to vibrating micro-needle pretreatment. The degree of enhancement also increased with vibration frequency. No broken tip of vibrated micro-needle was found after application. The vibrating solid micro-needle was effective and safe for the transdermal administration of hydrophilic drugs. The effectiveness increases with increasing vibration frequency.

Indexed as

Administration, CutaneousAnimalsDrug Delivery SystemsInsulinMaleMicroinjectionsNeedlesPermeabilityPyrazinesRatsSkin AbsorptionVibrationInsulinPyrazinestetramethylpyrazineDrug deliveryMicro-needlePermeabilityVibration

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.