Evidence map›Paper›PMID 28247506›Full record

ArticleXenotransplantation2017

The effect of hypoxia on free and encapsulated adult porcine islets-an in vitro study.

Sudhakar Muthyala, Susan Safley, Kereen Gordan, Graham Barber, Collin Weber, Athanassios Sambanis

Open access · greenAbstract read
In one paragraph

Article in Xenotransplantation, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.2field-weighted citation impact, top 12% of its field
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

10 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Islet cilia and glucose homeostasis.Frontiers in cell and developmental biology · 2022
    Review
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  8. Article
  9. Article
  10. [Effects of cryopreservation on biological characteristics of tendon-derived stem cells in rat patellar tendon].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2017
    Article
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

6 authors at 2 institutions in 1 country.

Sudhakar MuthyalaSchool of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, USA.
Susan SafleyDepartment of Surgery, Emory University, Atlanta, GA, USA.
Kereen GordanDepartment of Surgery, Emory University, Atlanta, GA, USA.
Graham BarberDepartment of Surgery, Emory University, Atlanta, GA, USA.
Collin WeberDepartment of Surgery, Emory University, Atlanta, GA, USA.
Athanassios SambanisSchool of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, USA.
Emory University · USGeorgia Institute of Technology · US

Funding

Innovation and Leadership in Engineering Technologies and Therapies for DiabetesR90DK098981 · NIDDK · GEORGIA INSTITUTE OF TECHNOLOGY · PI BABENSEE, JULIA E · 2012 to 2016
$339k
NIDDK NIH HHS R90 DK098981
6 · The paper itself

Abstract

backgroundAdult porcine islets (APIs) constitute a promising alternative to human islets in treating type 1 diabetes. The intrahepatic site has been used in preclinical primate studies of API xenografts; however, an estimated two-thirds of donor islets are destroyed after intraportal infusion due to a number of factors, including the instant blood-mediated inflammatory reaction (IBMIR), immunosuppressant toxicity, and poor reestablishment of extracellular matrix connections. Intraperitoneal (ip) transplantation of non-vascularized encapsulated islets offers several advantages over intrahepatic transplantation of free islets, including avoidance of IBMIR, immunoprotection, accommodation of a larger graft volume, and reduced risk of hemorrhage. However, there exists evidence that the peritoneal site is hypoxic, which likely impedes islet function.

methodsWe tested the effect of hypoxia (2%-5% oxygen or pO

resultsViability staining indicated that free islet clusters lost their integrity and underwent severe necrosis under hypoxia; encapsulated islets remained intact, even when they began to undergo necrosis. Under hypoxia, the metabolic activity and insulin secretion (normalized to metabolic activity) of both free and encapsulated islets decreased relative to islets cultured under normoxic conditions.

conclusionsHypoxia (2%-5% oxygen or pO

Indexed as

HypoxiaIslets of Langerhans TransplantationAnimalsDiabetes Mellitus, ExperimentalGraft RejectionImmunosuppressive AgentsInsulinInsulin SecretionIslets of LangerhansSwineTransplantation, HeterologousImmunosuppressive AgentsInsulinhypoxiainsulin secretionislet viabilitymicroencapsulationporcine islets

Identifiers

PMID28247506
PMCPMC5334784
OpenAlexW2548367613

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.