keyword
MENU ▼
Read by QxMD icon Read
search

Scarless

keyword
https://www.readbyqxmd.com/read/28102936/unbiased-and-quantitative-proteomics-reveals-highly-increased-angiogenesis-induction-by-the-secretome-of-mesenchymal-stromal-cells-isolated-from-fetal-rather-than-adult-skin
#1
Massimiliano Gaetani, Cinzia Maria Chinnici, Anna Paola Carreca, Claudia Di Pasquale, Giandomenico Amico, Pier Giulio Conaldi
Scarless wound healing and functional regeneration are typical processes of the fetus, gradually lost during post-natal life, and maximally attributed to fetal skin tissue and induced by fetal skin fibroblasts. The latter have been successfully applied to post-natal wounds, with clear advantages compared with autologous dermis grafts or adult fibroblast applications. Our goal was to functionally identify and uncover key factors and mechanisms through the analysis of secretomes, the principal players in all cell therapies based on mesenchymal stromal cells (MSCs)...
January 19, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28102837/precise-and-efficient-scarless-genome-editing-in-stem-cells-using-correct
#2
Dylan Kwart, Dominik Paquet, Shaun Teo, Marc Tessier-Lavigne
CRISPR/Cas9 is a promising tool for genome-editing DNA in cells with single-base-pair precision, which allows novel in vitro models of human disease to be generated-e.g., in pluripotent stem cells. However, the accuracy of intended sequence changes can be severely diminished by CRISPR/Cas9's propensity to re-edit previously modified loci, causing unwanted mutations (indels) alongside intended changes. Here we describe a genome-editing framework termed consecutive re-guide or re-Cas steps to erase CRISPR/Cas-blocked targets (CORRECT), which, by exploiting the use of highly efficacious CRISPR/Cas-blocking mutations in two rounds of genome editing, enables accurate, efficient and scarless introduction of specific base changes-for example, in human induced pluripotent (iPS) stem cells...
February 2017: Nature Protocols
https://www.readbyqxmd.com/read/28099058/two-site-appendectomy-in-children-description-of-technique-and-outcomes
#3
Bethany J Slater, Steven S Rothenberg
PURPOSE: Laparoscopic appendectomy is one of the most common operations. Single-site appendectomy has been gaining popularity; however, it has certain disadvantages. The purpose of this study was to review the results of an essentially scarless laparoscopic appendectomy technique. METHODS: A retrospective review of all patients who underwent two-site appendectomy for appendicitis between January 2015 and February 2016 was performed. For all cases, a 4 mm trocar and a 5 mm trocar were placed through an infraumbilical incision and a 3 mm trocar was placed in the suprapubic region...
January 18, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28060411/scarless-cas9-assisted-recombineering-no-scar-in-escherichia-coli-an-easy-to-use-system-for-genome-editing
#4
Christopher R Reisch, Kristala L J Prather
The discovery and development of genome editing systems that leverage the site-specific DNA endonuclease system CRISPR/Cas9 has fundamentally changed the ease and speed of genome editing in many organisms. In eukaryotes, the CRISPR/Cas9 system utilizes a "guide" RNA to enable the Cas9 nuclease to make a double-strand break at a particular genome locus, which is repaired by non-homologous end joining (NHEJ) repair enzymes, often generating random mutations in the process. A specific alteration of the target genome can also be generated by supplying a DNA template in vivo with a desired mutation, which is incorporated by homology-directed repair...
January 5, 2017: Current Protocols in Molecular Biology
https://www.readbyqxmd.com/read/28052256/a-precise-genome-editing-method-reveals-insights-into-the-activity-of-eukaryotic-promoters
#5
Gregory L Elison, Ruijie Song, Murat Acar
Despite the availability of whole-genome sequences for almost all model organisms, making faithful predictions of gene expression levels based solely on the corresponding promoter sequences remains a challenge. Plasmid-based approaches and methods involving selection markers are not ideal due to copy-number fluctuations and their disruptive nature. Here, we present a genome editing method using the CRISPR/Cas9 complex and elucidate insights into the activity of canonical promoters in live yeast cells. The method involves the introduction of a novel cut site into a specific genomic location, followed by the integration of an edited sequence into the same location in a scarless manner...
January 3, 2017: Cell Reports
https://www.readbyqxmd.com/read/28032220/transoral-endoscopic-parathyroidectomy-vestibular-approach-a-novel-scarless-parathyroid-surgery
#6
Thanyawat Sasanakietkul, Pornpeera Jitpratoom, Angkoon Anuwong
BACKGROUND: Natural orifice transluminal endoscopic surgery developed for neck surgery become increasing popular. Herein, an innovative transoral endoscopic parathyroidectomy vestibular approach (TOEPVA) was developed for primary hyperparathyroidism (PHPT) and renal hyperparathyroidism (rHPT). METHODS: Incisions were made at the oral vestibule under the inferior lip. A 10-mm trocar was inserted through the center of the oral vestibule with two 5-mm trocars laterally...
December 28, 2016: Surgical Endoscopy
https://www.readbyqxmd.com/read/28009138/intracorporeal-hybrid-single-port-vs-conventional-laparoscopic-appendectomy-in-children
#7
Paul Anthony Karam, Amy Hiuser, David Magnuson, Federico Gian Filippo Seifarth
Transumbilical laparoscopic assisted appendectomy combines laparoscopic single port dissection with open appendectomy after exteriorization of the appendix through the port site. Compared to the conventional three-port approach, this technique provides an alternative with excellent cosmetic outcome. We developed a safe and effective technique to perform an intracorporeal single port appendectomy, using the same laparoscope employed in the extracorporeal procedure. Retrospective review of 71 consecutively performed intracorporeal single port appendectomies and 30 conventional three-port appendectomies in children 6 to 17 years of age...
December 20, 2016: La Pediatria Medica e Chirurgica: Medical and Surgical Pediatrics
https://www.readbyqxmd.com/read/28004279/in-vitro-cultured-fetal-fibroblasts-have-myofibroblast-associated-characteristics-and-produce-a-fibrotic-like-environment-upon-stimulation-with-tgf-%C3%AE-1-is-there-a-thin-line-between-fetal-scarless-healing-and-fibrosis
#8
M Walraven, J J Akershoek, R H J Beelen, M M W Ulrich
Transforming growth factor-β (TGF-β) is a cytokine occurring in three isoforms with an important function in development and wound healing. In wound healing, prolonged TGF-β signaling results in myofibroblast differentiation and fibrosis. In contrast, the developing second-trimester fetal skin contains high levels of all three TGF-β isoforms but still has the intrinsic capacity to heal without scarring. Insight into TGF-β signal transduction during fetal wound healing might lead to methods to control the signaling pathway during adult wound healing...
December 21, 2016: Archives of Dermatological Research
https://www.readbyqxmd.com/read/27976527/skin-regeneration-with-all-accessory-organs-following-ablation-with-irreversible-electroporation
#9
Alexander Golberg, Martin Villiger, G Felix Broelsch, Kyle P Quinn, Hassan Albadawi, Saiqa Khan, Michael T Watkins, Irene Georgakoudi, William G Austen, Marianna Bei, Brett E Bouma, Martin C Mihm, Martin L Yarmush
Skin scar formation is a complex process that results in the formation of dense extracellular matrix without normal skin appendages such as hair and glands. The absence of a scarless healing model in adult mammals prevents the development of successful therapies. We show that irreversible electroporation of skin drives its regeneration with all accessory organs in normal adult rats. Pulsed electric fields at 500 V, with 70 µs pulse duration, and 1000 pulses delivered at 3 Hz, applied through two electrodes separated by 2 mm lead to massive cell death...
December 14, 2016: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/27957308/single-incision-laparoscopy-surgery-a-systematic-review
#10
REVIEW
Sasan Saeed Far, Sepide Miraj
BACKGROUND: Laparoscopic surgery is a modern surgical technique in which operations are performed far from their location through small incisions elsewhere in the body. OBJECTIVE: This systematic review is aimed to overview single-incision laparoscopy surgery. METHODS: This systematic review was carried out by searching studies in PubMed, Medline, Web of Science, and IranMedex databases. The initial search strategy identified about 87 references...
October 2016: Electronic Physician
https://www.readbyqxmd.com/read/27932775/-experience-in-transumbilical-endoscopic-surgery-diagnosis-for-3-cases-of-pseudomyxoma-peritonei
#11
Li Tian, Anliu Tang, Fen Liu, Shourong Shen, Xiaoyan Wang
Three patients of pseudomyxoma peritonei who were diagnozed by transumbilical endoscopic surgery (TUES) were reviewed retrospectively from September 2014 to November 2014. Three cases of ascites patients underwent TUES were diagnozed as pseudomyxoma peritonei. All operations were successful. No open surgery or laparoscopic surgery was required. The mean operative time was (45±16) min; the mean intraoperative blood loss was 510 mL; the mean hospital stay time was 3 days. During the follow up of 911 months, no obvious scar was observed...
November 28, 2016: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/27929521/efficient-footprint-free-human-ipsc-genome-editing-by-consolidation-of-cas9-crispr-and-piggybac-technologies
#12
Gang Wang, Luhan Yang, Dennis Grishin, Xavier Rios, Lillian Y Ye, Yong Hu, Kai Li, Donghui Zhang, George M Church, William T Pu
Genome editing of human induced pluripotent stem cells (hiPSCs) offers unprecedented opportunities for in vitro disease modeling and personalized cell replacement therapy. The introduction of Cas9-directed genome editing has expanded adoption of this approach. However, marker-free genome editing using standard protocols remains inefficient, yielding desired targeted alleles at a rate of ∼1-5%. We developed a protocol based on a doxycycline-inducible Cas9 transgene carried on a piggyBac transposon to enable robust and highly efficient Cas9-directed genome editing, so that a parental line can be expeditiously engineered to harbor many separate mutations...
January 2017: Nature Protocols
https://www.readbyqxmd.com/read/27919731/nerve-sparing-laparoscopic-colposacropexy-using-a-percutaneous-surgical-system-a-case-report
#13
Federico Romano, Francesco Legge, Giovanni Scambia, Maurizio Guido
STUDY OBJECTIVE: To evaluate the feasibility, efficacy and safeness of nerve-sparing laparoscopic colposacropexy performed with a minimally invasive approach by using 2,9 mm Percuvance(TM) Percutaneous Surgical System (PSS) (The Percuvance(TM) System, Teleflex Inc., USA). DESIGN: Step-by-step video demonstration of the surgical technique. The Internal Department Committee approved this study. The patient was adequately informed about the possible risks and benefits of this experimental technique and a written consent agreeing to undergo the described procedure was signed...
December 2, 2016: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/27917649/percutaneous-externally-assembled-laparoscopic-vs-laparoendoscopic-single-site-nephrectomy-in-a-porcine-model-a-prospective-randomized-blinded-study
#14
Mohamed Keheila, Jim K Shen, Daniel Faaborg, Patrick Yang, Salim Cheriyan, Samuel Abourbih, Nazih Khater, Michael Hill, D Duane Baldwin
OBJECTIVE: To compare the outcomes between laparoendoscopic single-site (LESS) and a novel percutaneous externally assembled laparoscopic (PEAL) nephrectomy in an in vivo porcine model. MATERIALS AND METHODS: Ten female farm pigs were randomized to LESS nephrectomy (5) or PEAL nephrectomy (5). Operative times, estimated blood loss, and intraoperative and postoperative complications were compared. The surgeons used a Likert scale to grade difficulty of peritoneal access, port placement, tool assembly, hilar dissection, closure, and overall difficulty of surgery...
January 5, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/27867546/transoral-endoscopic-mediastinal-surgery-toems-results-of-a-first-clinical-study-for-scarless-mediastinal-lymph-node-biopsies
#15
Wolfram Klemm, Steffen Frese, Gunda Leschber, André Nemat, Thomas Wilhelm
BACKGROUND: Video-assisted mediastinoscopy (VAM) represents the standard procedure for mediastinal lymph node biopsies. This operation results in a scar at prominent position at the anterior neck. Since there is a trend to less invasive procedures, natural orifice transluminal endoscopic surgery (NOTES) was introduced to different fields of surgery. Based on NOTES we developed a new approach for mediastinoscopy: transoral endoscopic mediastinal surgery (TOEMS). In previous studies using human cadavers and living pigs the feasibility of TOEMS was shown...
October 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/27827431/evidence-for-a-dynamic-role-for-mononuclear-phagocytes-during-endometrial-repair-and-remodelling
#16
Fiona L Cousins, Phoebe M Kirkwood, Philippa T K Saunders, Douglas A Gibson
In women, endometrial breakdown, which is experienced as menstruation, is characterised by high concentrations of inflammatory mediators and immune cells which account for ~40% of the stromal compartment during tissue shedding. These inflammatory cells are known to play a pivotal role in tissue breakdown but their contribution to the rapid scarless repair of endometrium remains poorly understood. In the current study we used a mouse model of menstruation to investigate dynamic changes in mononuclear phagocytes during endometrial repair and remodelling...
November 9, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27777621/genome-editing-of-clostridium-autoethanogenum-using-crispr-cas9
#17
Shilpa Nagaraju, Naomi Kathleen Davies, David Jeffrey Fraser Walker, Michael Köpke, Séan Dennis Simpson
BACKGROUND: Impactful greenhouse gas emissions abatement can now be achieved through gas fermentation using acetogenic microbes for the production of low-carbon fuels and chemicals. However, compared to traditional hosts like Escherichia coli or yeast, only basic genetic tools exist for gas-fermenting acetogens. To advance the process, a robust genetic engineering platform for acetogens is essential. RESULTS: In this study, we report scarless genome editing of an industrially used model acetogen, Clostridium autoethanogenum, using the CRISPR/Cas9 system...
2016: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/27768643/transcanalicular-laser-assisted-dacryocystorhinostomy-with-endonasal-augmentation-in-primary-nasolacrimal-duct-obstruction-our-experience
#18
Ruchi Goel, Smriti Nagpal, Sushil Kumar, Ravi Meher, Saurabh Kamal, Sonam Garg
PURPOSE: To evaluate and compare the success rate of transcanalicular laser-assisted dacryocystorhinostomy with endonasal augmentation, with and without intubation, in patients suffering from primary acquired nasolacrimal duct obstruction, at 1 year of follow up. METHODS: A prospective, randomized interventional pilot study was conducted at a tertiary care center, in accordance with the guidelines of Declaration of Helsinki. Sixty eyes of 60 adult patients with primary acquired nasolacrimal duct obstruction were included...
October 20, 2016: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27765807/recombineering-and-i-scei-mediated-pseudomonas-putida-kt2440-scarless-gene-deletion
#19
Zhongqiu Chen, Wen Ling, Guangdong Shang
Pseudomonas putida KT2440 is a saprophytic, generally recognized as safe microorganism that plays important roles in the biodegradation and production of value-added chemicals. Chromosomal gene deletion of P. putida KT2440 usually involves time-consuming gene coning, conjugal transfer and counterselection. Recently, we developed a P. putida KT2440 markerless gene deletion method based on recombineering and Cre/loxP site-specific recombination. PCR-based λ Red recombineering circumvents the tedious cloning steps and is more amenable to high-throughput manipulation...
October 7, 2016: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/27736907/scarless-gene-tagging-with-one-step-transformation-and-two-step-selection-in-saccharomyces-cerevisiae-and-schizosaccharomyces-pombe
#20
Dirk Landgraf, Dann Huh, Erinc Hallacli, Susan Lindquist
Gene tagging with fluorescent proteins is commonly applied to investigate the localization and dynamics of proteins in their cellular environment. Ideally, a fluorescent tag is genetically inserted at the endogenous locus at the N- or C- terminus of the gene of interest without disrupting regulatory sequences including the 5' and 3' untranslated region (UTR) and without introducing any extraneous unwanted "scar" sequences, which may create unpredictable transcriptional or translational effects. We present a reliable, low-cost, and highly efficient method for the construction of such scarless C-terminal and N-terminal fusions with fluorescent proteins in yeast...
2016: PloS One
keyword
keyword
105830
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"