journal
https://read.qxmd.com/read/38904737/effect-of-cell-therapy-with-adipose-derived-stem-cells-in-the-treatment-of-acute-rupture-of-the-achilles-tendon-in-humans
#1
JOURNAL ARTICLE
Maria Helena Costa Vieira, Laynna de Carvalho Schweich-Adami, Rodrigo Juliano Oliveira, Andréia Conceição Milan Brochado Antoniolli-Silva
The aim of this study was to evaluate the effect of adipose-derived stem cells (ADSCs) in the treatment of acute rupture of the Achilles tendon. It was a cross-sectional study involving 15 patients. Patients were randomly divided: group 1-rupture; group 2-suture; group 3-rupture + ADSCs. In the AOFAS score, the score was higher in group 3 with a significant difference. In the ATRS score, the score was higher in groups 2 and 3, also with a significant difference. As for the ultrasound score, there was a significant difference between the experimental groups in relation to this score, however, in the multiple comparisons test, comparing two groups at a time, it was possible to observe a significant difference of the experimental groups...
June 21, 2024: Cell and Tissue Banking
https://read.qxmd.com/read/38869670/the-effect-of-acellular-scaffold-loaded-with-wharton-s-jelly-derived-stem-cells-and-mineral-pitch-on-healing-of-burn-model-in-rat
#2
JOURNAL ARTICLE
Linda Mohammadzadeh Boukani, Maryam Ezzati, Ahad Ferdowsi Khosroshahi, Raziyeh Kheirjou
Severe burns often result in an exacerbated inflammatory response, which can contribute to further injury. This inflammatory response may lead to an increased risk of infection, multiple organ failure, and death. This study aimed to investigate the potential of reducing inflammation to enhance burn wound healing in rats using ovine's small intestinal submucosa as a carrier for Wharton's jelly mesenchymal stem cells (WJ-MSCs) and Mineral Pitch (MP). A rat burn model was developed, and the animals were divided into four groups: control group: burn, placebo group: scaffold-treated burn, cell experimental group: WJ-MSCs seeded scaffold-treated burn, and cell and MP experimental group: scaffolds loaded with WJ-MSCs and MP-treated burn...
June 13, 2024: Cell and Tissue Banking
https://read.qxmd.com/read/38844606/effects-of-nanographene-oxide-on-adipose-derived-stem-cell-cryopreservation
#3
JOURNAL ARTICLE
Zifei Li, Jun Qi, Su Fu, Jie Luan, Qian Wang
Cryoinjury mitigation is key in cell cryopreservation. Here, we aimed to assess the effectiveness of nanographene oxide (nano-GO) for improving cryoprotectant agents (CPAs) in human adipose stem cell (hADSC) cryopreservation. For in vitro experiments, nano-GO (5 μg/mL) was added to the CPAs in the control, and passage (P) 2 hADSCs were collected and cryopreserved for around two weeks. We compared cytotoxicity, cell viability, immunophenotypes, proliferation, cell apoptosis, and tri-lineage differentiation...
June 6, 2024: Cell and Tissue Banking
https://read.qxmd.com/read/38822224/comparison-of-the-structural-integrity-and-quality-of-corneal-endothelium-stored-in-organ-culture-storage-medium-versus-eusol-c
#4
JOURNAL ARTICLE
Qin Wang, Yonghuan Liu, Yang Gao, Ming Zhang, Lihong Yang, Jian Hu, Yi Ren, Qizhi Zhou, Meidong Zhu
In this experimental study, we compared the structural integrity and cell quality of corneal endothelium stored in organ culture medium (OCS) and Eusol-C. The experiment included rabbit and human cornea experiments in vitro. Thirty rabbit corneas and thirty-two human corneas were collected and divided into two groups. All right corneas were allocated in experiment group and left corneas were placed in control group. The corneas in experimental group were stored in OCS at 34 °C, and the corneas in control group were stored in Eusol-C at 4 °C for 7, 14, 21, 28, and 35 days, respectively...
May 31, 2024: Cell and Tissue Banking
https://read.qxmd.com/read/38780817/histological-evaluation-of-decellularization-of-freeze-dried-and-chemically-treated-indigenously-prepared-bovine-pericardium-membrane
#5
JOURNAL ARTICLE
Chander Gupt, Arundeep Kaur Lamba, Farrukh Faraz, Shruti Tandon, Archita Datta, Sachin Dhingra
Decellularization is regarded as a xenogenic antigen-reduction technique because it effectively eliminates all cellular and nuclear components while mitigating any negative impact on the composition, biological functionality, and structural integrity of the remaining extracellular matrix. This study aimed to histologically evaluate native, freeze dried and chemically decellularized bovine pericardium membrane. Also, this study focused on preservation of extracellular matrix after decellularization. Bovine pericardium membrane was decellularized by freeze thaw cycle followed by freeze drying and 1% sodium dodecyl sulphate...
May 23, 2024: Cell and Tissue Banking
https://read.qxmd.com/read/38776014/biomechanical-evaluation-of-a-sheep-tracheal-scaffold
#6
JOURNAL ARTICLE
Aida Nahumi, Maryam Peymani, Asadollah Asadi, Arash Abdolmaleki, Yassin Panahi
Tissue engineering is a set of techniques for producing or reconstructing tissue that primarily aims to restore or improve the function of tissues in the human body. The aim of the present study was to evaluate the mechanical and histological characteristics of decellularized tracheal scaffolds prepared in comparison with fresh trachea for use in tracheal repair. In order to prepare the scaffold, sheep's trachea was prepared and after cleaning the waste tissues, they were decellularized. Then decellularized scaffolds were evaluated histologically and laboratory and numerical study of the nonlinear mechanical behavior of tracheal tissue and scaffold and their comparison...
May 22, 2024: Cell and Tissue Banking
https://read.qxmd.com/read/38750214/dose-dependent-effects-of-gamma-radiation-sterilization-on-the-collagen-matrix-of-human-cortical-bone-allograft-and-its-influence-on-fatigue-crack-propagation-resistance
#7
JOURNAL ARTICLE
Dylan B Crocker, Thomas M Hering, Ozan Akkus, Megan E Oest, Clare M Rimnac
Fatigue crack propagation resistance and high-cycle S-N fatigue life of cortical bone allograft tissue are both negatively impacted in a radiation dose-dependent manner from 0 to 25 kGy. The standard radiation sterilization dose of 25-35 kGy has been shown to induce cleavage of collagen molecules into smaller peptides and accumulation of stable crosslinks within the collagen matrix, suggesting that these mechanisms may influence radiation-induced losses in cyclic fracture resistance. The objective of this study was to determine the radiation dose-dependency of collagen chain fragmentation and crosslink accumulation within the dose range of 0-25 kGy...
May 15, 2024: Cell and Tissue Banking
https://read.qxmd.com/read/38724712/biomechanical-and-histological-comparison-of-two-suture-configurations-for-soft-tissue-grafts-speedtrap%C3%A2-versus-krackow-stitch
#8
JOURNAL ARTICLE
Anell Olivos-Meza, Edgar Manuel Hernández-Espinoza, Víctor Manuel Domínguez-Hernández, Víctor Manuel Araujo-Monsalvo, Eréndira Georgina Estrada-Villaseñor, Raúl Pichardo-Bahena, Luis Ángel Murguía-González, Juan Diego Rodríguez-Reinoso, Jonatan de Jesus Hernández-León, Carlos Landa-Solis
To compare 2 different graft preparation techniques to determine biomechanical strength and resultant tissue trauma evaluated by histology. Twelve common flexors of the finger's tendons were prepared with either tubulization (SpeedTrap™) or transtendon stiches (Orthocord™). The stiffness, resistance and energy at maximum load were tested for biomechanical assessment in both groups. After load testing, Samples were stained with hematoxylin and eosin (HE) to evaluate histological damage. We observe that the time to prepare tendons with SpeedTrap™ was 8...
May 10, 2024: Cell and Tissue Banking
https://read.qxmd.com/read/38671187/decellularized-kidney-capsule-as-a-three-dimensional-scaffold-for-tissue-regeneration
#9
JOURNAL ARTICLE
Mohammad Rasool Khazaei, Rawa Ibrahim, Rayan Faris, Azam Bozorgi, Mozafar Khazaei, Leila Rezakhani
Tissue regeneration is thought to have considerable promise with the use of scaffolds designed for tissue engineering. Although polymer-based scaffolds for tissue engineering have been used extensively and developed quickly, their ability to mimic the in-vivo milieu, overcome immunogenicity, and have comparable mechanical or biochemical properties has limited their capability for repair. Fortunately, there is a compelling method to get around these challenges thanks to the development of extracellular matrix (ECM) scaffolds made from decellularized tissues...
April 26, 2024: Cell and Tissue Banking
https://read.qxmd.com/read/38489016/variability-of-bmp-2-content-in-dbm-products-derived-from-different-long-bone
#10
JOURNAL ARTICLE
Yong-Jie Zhao, Gang Yin, Bin Liu, Xiao-Qiang Deng, Hai-Yan Cao, Ying Liu
Demineralized bone matrix (DBM) has been regarded as an ideal bone substitute as a native carrier of bone morphogenetic proteins (BMPs) and other growth factors. However, the osteoinductive properties diverse in different DBM products. We speculate that the harvest origin further contributing to variability of BMPs contents in DBM products besides the process technology. In the study, the cortical bone of femur, tibia, humerus, and ulna from a signal donor were prepared and followed demineralizd into DBM products...
March 15, 2024: Cell and Tissue Banking
https://read.qxmd.com/read/38466563/recent-progress-in-mesenchymal-stem-cell-based-therapy-for-acute-lung-injury
#11
REVIEW
Jinfeng Liang, Weiyou Dai, Shihang Xue, Feifei Wu, Enhai Cui, Ruolang Pan
Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are life-threatening diseases in critically ill patients. Although pathophysiology of ALI/ARDS has been investigated in many studies, effective therapeutic strategies are still limited. Mesenchymal stem cell (MSC)-based therapy is emerging as a promising therapeutic intervention for patients with ALI. During the last two decades, researchers have focused on the efficacy and mechanism of MSC application in ALI animal models. MSC derived from variant resources exhibited therapeutic effects in preclinical studies of ALI with different mechanisms...
March 11, 2024: Cell and Tissue Banking
https://read.qxmd.com/read/38386211/impact-of-prolonged-storage-time-on-homograft-ultrastructures-an-attempt-to-find-optimal-guidelines-for-homograft-processing
#12
JOURNAL ARTICLE
Ida von Konow, Angeline Eliasson, Johan Nilsson, Torsten Malm
According to guidelines, total ischemic time for homografts at processing must be kept short to avoid degeneration. Many homografts are discarded due to practical inability to finish all steps from procurement to cryopreservation within the time limit. Although, several studies have shown that homografts with prolonged ischemic time show adequate quality and performance. Twenty aortic and 12 pulmonary homografts were collected and biopsies were retrieved at preparation (day 0) and after 1, 2, 3, 4, 7, 14, 21, 28, and 60 days in antibiotic decontamination at 4 °C...
February 22, 2024: Cell and Tissue Banking
https://read.qxmd.com/read/38386210/allografts-use-in-orthopedic-surgery-trend-change-over-the-past-11%C3%A2-years-from-a-regional-tissue-bank
#13
JOURNAL ARTICLE
Andrea Della Valle, Riccardo Compagnoni, Francesco Puglia, Daniele Priano, Alessandra Menon, Lorenzo Teani, Giovanni Andrea La Maida, Tullia De Feo, Marco Sacchi, Federico Ambrogi, Alfonso Cicatelli, Pietro Simone Randelli
Allografts are the second most transplanted tissue in medicine after blood and are now increasingly used for both primary and revision surgery. Allografts have the advantages of lower donor site morbidity, availability of multiple grafts, and shorter operative time. The Banks represents the bridge between Donor and Recipient and guarantees the quality and safety of the distributed allografts Given the increasing interest in these tissues, a retrospective analysis of data collected from the Regional Musculoskeletal Tissue Bank registry over an 11-year period (2009-2019) was conducted...
February 22, 2024: Cell and Tissue Banking
https://read.qxmd.com/read/38383908/efficacy-of-mesenchymal-stromal-cells-in-the-treatment-of-type-1-diabetes-a-systematic-review
#14
REVIEW
Jiaxin Liu, Yang Yang, Yun Qi
To investigate the efficacy of mesenchymal stromal cells in the treatment of type 1 diabetes. Articles about the effects of mesenchymal stromal cells for T1D were retrieved in PubMed, Web of Science, Embase, and the Cochrane Library databases up to July 2023. Additional relevant studies were manually searched through citations. HbA1c, FBG, PBG, insulin requirement and C-peptide were assessed. The risk of bias was evaluated with the ROB 2.0 and ROBINS-I tools. Six RCTs and eight nRCTs were included. Of the 14 studies included, two evaluated BM-MSCs, three evaluated UC-MSCs, five evaluated AHSCT, two evaluated CB-SCs, and two evaluated UC-SCs plus aBM-MNCs...
February 21, 2024: Cell and Tissue Banking
https://read.qxmd.com/read/38381276/development-and-validation-of-cryopreserved-or-freeze-dried-decellularized-human-dermis-for-transplantation
#15
JOURNAL ARTICLE
Giulia Montagner, Antonia Barbazza, Manvi Pant, Andrea Tancredi Lugas, Gianpaolo Serino, Cristina Bignardi, Mara Terzini, Andrea Vantini, Jacopo Stefanelli, Diletta Trojan
For decades, dermal tissue grafts have been used in various regenerative, reconstructive, and augmentative procedures across the body. To eliminate antigenicity and immunogenic response while still preserving the individual components and collective structural integrity of the extracellular matrix (ECM), dermis can be decellularized. Acellular dermal matrix (ADM) products like such are produced to accurately serve diverse clinical purposes. The aim of the present study is to evaluate the efficacy of a novel decellularization protocol of the human dermis, which eliminates residual human genetic material without compromising the biomechanical integrity and collagenous content of the tissue...
February 21, 2024: Cell and Tissue Banking
https://read.qxmd.com/read/38367054/biological-parameters-for-quality-evaluation-of-allografts-from-the-brazilian-national-institute-of-traumatology-and-orthopedics-tissue-bank
#16
JOURNAL ARTICLE
Rafael A D Prinz, Leonardo Rosa da Rocha, Thiago Penna Eirado, Jonathan da Silva Pinto, João Antônio Matheus Guimarães, Fabricio Fogagnolo, Rhayra Braga Dias
Bone allografts are clinically used in a variety of surgical procedures, and tissue banks are responsible for harvesting, processing, quality testing, storing, and delivering these materials for transplantation. In tissue banks, the bone is processed for the removal of all organic content, remaining only the tissue structure (scaffold). However, several studies have shown that even after using different processing methods, viable cells, functional proteins, and DNA may still persist in the tissue, which constitute the main causes of graft rejection...
February 17, 2024: Cell and Tissue Banking
https://read.qxmd.com/read/38363442/mesenchymal-stem-cells-in-prp-and-prf-containing-poly-3-caprolactone-gelatin-scaffold-a-comparative-in-vitro-study
#17
JOURNAL ARTICLE
Samin Sirous, Mohammad Mostafa Aghamohseni, Shirin Zahra Farhad, Mohammadhossein Beigi, Maryam Ostadsharif
Scaffold design is one of the three most essential parts of tissue engineering. Platelet-rich plasma (PRP) and platelet-rich fibrin (PRF) have been used in clinics and regenerative medicine for years. However, the temporal release of their growth factors limits their efficacy in tissue engineering. In the present study, we planned to synthesize nanofibrous scaffolds with the incorporation of PRP and PRF by electrospinning method to evaluate the effect of the release of PRP and PRF growth factors on osteogenic gene expression, calcification, proliferation, and cell adhesion of human bone marrow mesenchymal stem cell (h-BMSC) as they are part of scaffold structures...
February 16, 2024: Cell and Tissue Banking
https://read.qxmd.com/read/38319426/biomechanical-properties-of-articular-cartilage-in-different-regions-and-sites-of-the-knee-joint-acquisition-of-osteochondral-allografts
#18
JOURNAL ARTICLE
Yongsheng Ma, Qitai Lin, Xueding Wang, Yang Liu, Xiangyang Yu, Zhiyuan Ren, Yuanyu Zhang, Li Guo, Xiaogang Wu, Xiangyu Zhang, Pengcui Li, Wangping Duan, Xiaochun Wei
Osteochondral allograft (OCA) transplantation involves grafting of natural hyaline cartilage and supporting subchondral bone into the cartilage defect area to restore its biomechanical and tissue structure. However, differences in biomechanical properties and donor-host matching may impair the integration of articular cartilage (AC). This study analyzed the biomechanical properties of the AC in different regions of different sites of the knee joint and provided a novel approach to OCA transplantation. Intact stifle joints from skeletally mature pigs were collected from a local abattoir less than 8 h after slaughter...
February 6, 2024: Cell and Tissue Banking
https://read.qxmd.com/read/38206443/ctg18-1-expansion-in-transcription-factor-4-tcf4-in-corneal-graft-failure-preliminary-study
#19
JOURNAL ARTICLE
Ida Maria Westin, Andreas Viberg, Irina Golovleva, Berit Byström
Fuchs endothelial corneal dystrophy (FECD) is caused by a corneal endothelial cell loss, leading to corneal edema and visual impairment. The most significant genetic risk factor for FECD is an expansion of the CTG18.1 locus in transcription factor 4 (TCF4). The current treatment for severe FECD is corneal transplantation, with Descemet stripping automated keratoplasty (DSAEK) as a common surgical method. Although successful in most cases, the risk for transplant failure due to diverse causes must be considered...
January 11, 2024: Cell and Tissue Banking
https://read.qxmd.com/read/38191687/an-important-detail-that-is-still-not-clear-in-amniotic-membrane-applications-how-do-we-store-the-amniotic-membrane-best
#20
REVIEW
Mehmet Gurdal, Ilayda Korkmaz, Ozlem Barut Selver
The use of fresh amniotic membrane (AM) is not a viable option, as it has many disadvantages. Preserving the AM reduces the risk of cross-infection and maintains its effectiveness for a long time. In order to maximize the therapeutic effects of the AM, the basic need is to preserve its vitality and the bioactive molecules it contains. However, the effect of preservation procedures on cell viability and growth factors is a still matter of debate. Optimum preservation method is expected to be cost-effective, easily-accessible, and most importantly, to preserve the effectiveness of the tissue for the longest time...
January 9, 2024: Cell and Tissue Banking
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