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https://www.readbyqxmd.com/read/28340616/lacking-of-palladin-leads-to-multiple-cellular-events-changes-which-contribute-to-ntd
#1
Juan Tan, Xue-Jiao Chen, Chun-Ling Shen, Hong-Xin Zhang, Ling-Yun Tang, Shun-Yuan Lu, Wen-Ting Wu, Ying Kuang, Jian Fei, Zhu-Gang Wang
BACKGROUND: The actin cytoskeleton-associated protein palladin plays an important role in cell motility, morphogenesis and adhesion. In mice, Palladin deficient embryos are lethal before embryonic day (E) 15.5, and exhibit severe cranial neural tube and body wall closure defects. However, the mechanism how palladin regulates the process of cranial neural tube closure (NTC) remains unknown. METHODS: In this paper, we use gene knockout mouse to elucidate the function of palladin in the regulation of NTC process...
March 24, 2017: Neural Development
https://www.readbyqxmd.com/read/28338298/tidal-airway-closure-in-asthma-and-copd
#2
Claudio Tantucci, Laura Pini
Functional closure of small airways can occur during tidal breathing above functional residual capacity (FRC) both in asthma and COPD patients, especially during exacerbations. Such event has several noxious consequences on gas exchange, airway hyperresponsiveness and mechanical stress and strain within lung tissue and airway wall, mostly due to increase in ventilation heterogeneity. The availability of simple functional tests based on sequential measurements of lung volumes (i.e.: FRC), by plethysmography and dilutional techniques may reveal and monitor easily tidal airway closure that can be and should be treated with the aim of abolishing or at least reducing this dangerous condition...
November 23, 2016: Monaldi Archives for Chest Disease, Archivio Monaldi Per le Malattie del Torace
https://www.readbyqxmd.com/read/28328600/management-of-pharyngocutaneous-fistula-with-negative-pressure-wound-therapy
#3
Sérgio Teixeira, Joana Costa, Isabel Bartosch, Bernardo Correia, Álvaro Silva
BACKGROUND: Pharyngocutaneous fistula is a common complication of laryngopharyngeal surgery and is associated with increased morbidity and mortality. Beyond the classical management, negative-pressure wound therapy (NPWT) can be an alternative and effective treatment. CLINICAL REPORT: Two patients with pT3N0M0 squamous cell carcinoma of pyriform sinus were subjected to total laryngectomy and pharyngoesophageal reconstruction of a circular (patient 1) and an anterior wall defect (patient 2) with radial forearm free flap and pectoralis major muscle flap, respectively...
March 21, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28327422/abdominal-wall-reconstruction-after-desmoid-type-fibromatosis-radical-resection-case-series-from-a-single-institution-and-review-of-the-literature
#4
S D Couto Netto, F Teixeira, C A M Menegozzo, A Albertini, E H Akaishi, E M Utiyama
BACKGROUND: Abdominal wall desmoid type fibromatosis management has been changing over recent years, from an aggressive approach towards a more conservative one. When radical resection is indicated, the surgical team faces the challenge of abdominal wall reconstruction, for which optimal technique is still debated. The present study reports the experience from a single center with abdominal closures after desmoid type fibromatosis resection. MATERIAL AND METHODS: Retrospective analysis of patients who underwent abdominal wall closure after sporadic abdominal desmoid type fibromatosis radical resection from 1982 to 2013...
March 1, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28326962/intrauterine-fetal-death-with-vanishing-gastroschisis-and-post-mortem-examination-findings
#5
Alexandra Frances Jolley, Elizabeth Jane Beare, Jeremy Granger, Catherine Lucy Cord-Udy, Peter Muller, Lynette Moore
We present a severe case of vanishing gastroschisis resulting in intrauterine death with post mortem examination findings. Gastroschisis is defined as a full thickness paraumbilical abdominal wall defect associated with evisceration of fetal intestine. It is almost always right-sided. Vanishing gastroschisis is an extremely rare form of gastroschisis that results in short bowel syndrome due to exteriorized bowel disconnected from the lumen of the rest of the bowel proximally as well as distally in association with partial or complete closure of the abdominal wall...
March 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28326315/genomewide-expression-and-functional-interactions-of-genes-under-drought-stress-in-maize
#6
Nepolean Thirunavukkarasu, Rinku Sharma, Nidhi Singh, Kaliyugam Shiriga, Sweta Mohan, Swati Mittal, Shikha Mittal, Mallana Gowdra Mallikarjuna, Atmakuri Ramakrishna Rao, Prasanta Kumar Dash, Firoz Hossain, Hari Shanker Gupta
A genomewide transcriptome assay of two subtropical genotypes of maize was used to observe the expression of genes at seedling stage of drought stress. The number of genes expressed differentially was greater in HKI1532 (a drought tolerant genotype) than in PC3 (a drought sensitive genotype), indicating primary differences at the transcriptional level in stress tolerance. The global coexpression networks of the two genotypes differed significantly with respect to the number of modules and the coexpression pattern within the modules...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/28324683/thermal-stress-impacts-reproductive-development-and-grain-yield-in-rice
#7
REVIEW
Muhammad Shakeel Arshad, Muhammad Farooq, Folkard Asch, Jagadish S V Krishna, P V Vara Prasad, Kadambot H M Siddique
Rice is highly sensitive to temperature stress (cold and heat), particularly during the reproductive and grain-filling stages. In this review, we discuss the effects of low- and high-temperature sensitivity in rice at various reproductive stages (from meiosis to grain development) and propose strategies for improving the tolerance of rice to terminal thermal stress. Cold stress impacts reproductive development through (i) delayed heading, due to its effect on anther respiration, which increases sucrose accumulation, protein denaturation and asparagine levels, and decreases proline accumulation, (ii) pollen sterility owing to tapetal hypertrophy and related nutrient imbalances, (iii) reduced activity of cell wall bound invertase in the tapetum of rice anthers, (iv) impaired fertilization due to inhibited anther dehiscence, stigma receptivity and ability of the pollen tube to germinate through the style towards the ovary, and (v) floret sterility, which increases grain abortion, restricts grain size, and thus reduces grain yield...
March 16, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28319845/surface-transport-processes-in-charged-porous-media
#8
Jorge Gabitto, Costas Tsouris
Surface transport processes are very important in chemistry, colloidal sciences, engineering, biology, and geophysics. Natural or externally produced charges on surfaces create electrical double layers (EDLs) at the solid-liquid interface. The existence of the EDLs produces several complex processes including bulk and surface transport of ions. In this work, a model is presented to simulate bulk and transport processes in homogeneous porous media comprising big pores. It is based on a theory for capacitive charging by ideally polarizable porous electrodes without Faradaic reactions or specific adsorption of ions...
March 3, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28294199/management-of-an-immature-partially-necrotic-permanent-molar-by-pulp-revascularization-%C3%A2-two-year-follow-up
#9
Julian Schmoeckel, Mhd Said Mourad, Christian H Splieth, Ruth M Santamaria
Root canal treatment of immature teeth is considered a great challenge for both the dentist and the patient. The thinness of the root canals walls and the lack of an apical barrier leads to unpredictable treatment results. Revascularization is a novel promising treatment option in the field of regenerative endodontics for management of immature necrotic permanent teeth. This case presents a successful treatment of an 8-year-old patient with a partially necrotic, immature permanent mandibular right first molar pulp by revascularization...
March 14, 2017: Quintessence International
https://www.readbyqxmd.com/read/28286041/combined-submuscular-tissue-expansion-and-anterior-component-separation-technique-for-abdominal-wall-reconstruction-long-term-outcome-analysis
#10
Brendan Alleyne, Cemile Nurdan Ozturk, Antonio Rampazzo, Jeffrey Johnson, Raffi Gurunluoglu
BACKGROUND: We report the long-term outcome analysis of 12 patients who underwent two-stage abdominal wall reconstruction using combined submuscular tissue expansion and anterior components separation (CS) technique. METHODS: Outcome measures were (1) the patients were assessed for the presence or absence of recurrence; (2) patient-reported outcomes on physical functioning in relation with the abdominal wall reconstruction were evaluated using the SF 36-item health survey...
February 17, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28281662/lah-is-a-transmembrane-protein-and-requires-spa10-for-stable-positioning-of-woronin-bodies-at-the-septal-pore-of-aspergillus-fumigatus
#11
Yannik Leonhardt, Sara Carina Kakoschke, Johannes Wagener, Frank Ebel
Woronin bodies are specialized, fungal-specific organelles that enable an immediate closure of septal pores after injury to protect hyphae from excessive cytoplasmic bleeding. In most Ascomycetes, Woronin bodies are tethered at the septal pore by so-called Lah proteins. Using the pathogenic mold Aspergillus fumigatus as a model organism, we show that the C-terminal 288 amino acids of Lah (LahC288) bind to the rim of the septal pore. LahC288 essentially consists of a membrane spanning region and a putative extracellular domain, which are both required for the targeting to the septum...
March 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28280694/effectiveness-and-versatility-of-biological-prosthesis-in-transplanted-patients
#12
Giovanni Vennarecci, Gianluca Mascianà, Edoardo De Werra, Giovanni Battista Levi Sandri, Daniele Ferraro, Mirco Burocchi, Giovanni Tortorelli, Nicola Guglielmo, Giuseppe Maria Ettorre
AIM: To emphasize the effectiveness and versatility of prosthesis, and good tolerance by patients with incisional hernia (IH). METHODS: From December 2001 to February 2016, 270 liver transplantations were performed at San Camillo Hospital. IH occurred in 78 patients (28.8%). IH usually appeared early within the first year post-orthotopic liver transplantation. In the first era, fascial defect was repaired by primary closure for defects smaller than 2.5 cm or with synthetic mesh for greater defects...
February 24, 2017: World Journal of Transplantation
https://www.readbyqxmd.com/read/28279777/sutureless-vs-sutured-gastroschisis-closure-a-prospective-randomized-controlled-trial
#13
Matias Bruzoni, Joshua D Jaramillo, Jonathan L Dunlap, Claire Abrajano, Shobha W Stack, Susan R Hintz, Tina Hernandez-Boussard, Sanjeev Dutta
BACKGROUND: Sutureless gastroschisis repair involves covering the abdominal wall defect with the umbilical cord or a synthetic dressing to allow closure by secondary intention. No randomized studies have described the outcomes of this technique. Our objective was to prospectively compare short-term outcomes of sutureless versus sutured closure in a randomized fashion. STUDY DESIGN: We recruited patients who presented with gastroschisis between 2009 and 2014 and were randomized into either sutureless or sutured treatment groups...
March 6, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28277472/transvaginal-repair-of-complex-rectovaginal-fistulas-using-the-porcine-urinary-bladder-matrix-as-an-augmenting-graft
#14
Hemikaa Devakumar, Neeraja Chandrasekaran, Alexandriah Alas, Laura Martin, G Willy Davila, Eric Hurtado
BACKGROUND: After the US Food and Drug Administration issued a safety warning concerning vaginal mesh implants in 2008, their use in correction of pelvic floor defects have decreased in the United States (http://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm479732.htm). However, we are still treating patients who have had complications associated with their use, rectovaginal fistulas (RVFs) being one of them. Rectovaginal fistulas are considered complex if greater than 2.5 cm, recurrent, associated with inflammatory bowel disease, or if they are proximal in location...
March 9, 2017: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/28277071/chemical-component-separation-a-systematic-review-and-meta-analysis-of-botulinum-toxin-for-management-of-ventral-hernia
#15
Jason M Weissler, Michael A Lanni, Michael G Tecce, Martin J Carney, Valeriy Shubinets, John P Fischer
BACKGROUND: Ventral hernia represents a surgical challenge plagued by high morbidity and recurrence rates. Primary closure of challenging hernias is often prohibited by severe lateral retraction and tension of the abdominal wall musculature. Botulinum toxin injections have recently been identified as a potential pre-operative means to counteract abdominal wall tension, reduce hernia size, and facilitate fascial closure during hernia repair. This systematic review and meta-analysis reviews outcomes associated with botulinum toxin injections in the setting of ventral hernia, and demonstrates an opportunity to leverage this mainstream aesthetic product for use in abdominal wall reconstruction...
February 20, 2017: Journal of Plastic Surgery and Hand Surgery
https://www.readbyqxmd.com/read/28265733/major-complex-abdominal-wall-repair-in-contaminated-fields-with-use-of-a-non-cross-linked-biologic-mesh-a-dual-institutional-experience
#16
J J Atema, E J Furnée, Y Maeda, J Warusavitarne, P J Tanis, W A Bemelman, C J Vaizey, M A Boermeester
BACKGROUND: Data on the use of biologic mesh in abdominal wall repair in complex cases remain sparse. Aim of this study was to evaluate a non-cross-linked porcine acellular dermal matrix for repair of complex contaminated abdominal wall defects. METHODS: Retrospective observational cohort study of consecutive patients undergoing abdominal wall repair with use of Strattice™ Reconstructive Tissue Matrix (LifeCell Corporation, Oxford, UK) between January 2011 and February 2015 at two National Intestinal Failure Units...
March 6, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28249233/vac-therapy-with-long-term-continuous-saline-infusion-for-secondary-septic-peritonitis-a-new-strategy-for-the-reduction-of-perioperative-risks
#17
Fulvio Nisi, Federico Marturano, Eleonora Natali, Antonio Galzerano, Patrizia Ricci, Vito Aldo Peduto
BACKGROUND: The management of a septic peritonitis open abdomen is a serious problem for clinicians. Open surgery is associated with several complications such as bleeding and perforation of the bowel. CASE PRESENTATION: The authors report a case of a 59-years-old female who underwent a sigmoid resection with an latero-terminal (L-T) anastomosis for the perforation of a diverticulum. After a few days the patients developed a new widespread peritonitis. At the emergency re-laparotomy, surgeons found dehiscence of the posterior wall of the anastomosis with fecal contamination...
February 13, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28248041/-urinary-bladder-substitution-using-combined-membrane-based-on-secretions-of-human-mesenchymal-stem-cells-and-type-i-collagen
#18
V I Kirpatovckii, D M Kamalov, A Yu Efimenko, P I Makarevich, G D Sagaradze, O A Makarevich, P P Nimiritskii, E O Osidak, S P Domogatskii, V K Karpov, Z H A Akopyan, V A Tkachuk, A A Kamalov
AIM: Despite the widespread use of intestinal cystoplasty, urinary bladder substitution remains a challenging problem due to the complexity of operations and the potentially high risk of complications. A promising alternative may be bio-engineered collagen-based matrices containing stem cells or their secretions. MATERIAL AND METHODS: To evaluate the effectiveness of this bladder substitution modality, an experiment was conducted on 14 male rabbits. The animals underwent resection of urinary bladder, and the formed defect was substituted with a membrane of type I collagen (series 1, 5 rabbits) or a membrane of the same composition containing a conditioned medium with secretion of mesenchymal stem/stromal cells derived from human adipose tissue (series 2, 5 rabbits)...
December 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28229637/a-simple-standard-technique-for-labyrinthectomy-in-the-rat-a-methodical-communication-with-a-detailed-description-of-the-surgical-process
#19
G L Nádasy, G Raffai, E Fehér, G Schaming, E Monos
Aims Labyrinthectomized rats are suitable models to test consequences of vestibular lesion and are widely used to study neural plasticity. We describe a combined microsurgical-chemical technique that can be routinely performed with minimum damage. Methods Caudal leaflet of the parotis is elevated. The tendinous fascia covering the bulla is opened frontally from the sternomastoid muscle's tendon while sparing facial nerve branches. A 4 mm diameter hole is drilled into the bulla's hind lower lateral wall to open the common (in rodents) mastoid-tympanic cavity...
September 2016: Physiol Int
https://www.readbyqxmd.com/read/28225918/the-aplication-of-cyanoacrilate-surgical-glue-on-skin-suture-in-rats
#20
João Ilgenfritz, Ricardo Dutra Aydos, Iandara Schettert Silva, Rondon Tosta Ramalho, João Ilgenfritz, Gerson Gattats Orro de Campos, Ricardo Kenithi Nakamura, Danilo M Zanello Guerisoli, Wilson de Barros Cantero
Purpose: To compare the use of a new cyanoacrylate-based surgical glue and suture with sepa-rate points in skin wounds closure. Methods: Thirty-six rats were subjected to a 4cm dorsal longitudinal incision. Twelve were sub-jected to simple suture with polyamide 6-0, 12 rats underwent wall synthesis using Dermabond(r) and 12 was performed cutaneous synthesis with N-2-Butyl-Cyanoacrylate. Twelve of each group was euthanized on the seventh postoperative day, their blood was taken to biochemical tests and a layer of skin and subcutaneous tissue surrounding the surgical scar was randomly divided in two segments, to the submission of tension tests and to histological study...
January 2017: Acta Cirúrgica Brasileira
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