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https://www.readbyqxmd.com/read/28429071/the-surgical-management-of-radiation-proctopathy
#1
REVIEW
L F McCrone, P M Neary, J Larkin, P McCormick, B Mehigan
BACKGROUND: There is sparse evidence guiding the optimum surgical management of patients with radiation proctopathy (RP). The purpose of this review is to analyse all the literature on the surgical management of RP in order to guide physicians and surgeons as to when and what surgery should be employed for these patients. METHODS: A literature search of PubMed, EMBASE, MEDLINE, Ovid, and Cochrane Library using the MeSH terms "radiation proctopathy", "proctitis", "surgical management", and related terms as keywords was performed...
April 20, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28428961/glucose-insulin-potassium-alleviates-intestinal-mucosal-barrier-injuries-involving-decreased-expression-of-uncoupling-protein-2-and-nlr-family-pyrin-domain-containing-3-inflammasome-in-polymicrobial-sepsis
#2
Jun-Liang Zhang, Yi-Ting Chen, Guang-Dao Chen, Tao Wang, Ju-Xin Zhang, Qi-Yi Zeng
Uncoupling protein 2 (UCP2) may be critical for intestinal barrier function which may play a key role in the development of sepsis, and insulin has been reported to have anti-inflammatory effects. Male Sprague-Dawley rats were randomly allocated into five groups: control group, cecal ligation and puncture (CLP) group, sham surgery group, CLP plus glucose-insulin-potassium (GIK) group, and CLP plus glucose and potassium (GK) group. Ileum tissues were collected at 24 h after surgery. Histological and cytokine analyses, intestinal permeability tests, and western blots of intestinal epithelial tight junction component proteins and UCP2 were performed...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28428827/fundamental-research-on-the-action-mechanism-of-the-800-nm-semiconductor-laser-on-skin-blackheads-and-coarse-pores
#3
Jie Lin, Li Jing, Hao Zhu, Fu-Sheng Dong
The aim of the study was to determine the mechanism of action of the 800 nm semiconductor laser on skin blackheads and coarse pores. A total of 24 healthy purebred short-haired male guinea pigs, weighing 350-400 g, were selected and smeared with 0.5 ml coal tar suspension evenly by injector once daily. Treatment was continued for 14 days to form an experimental area of 8×3 cm on the back of the guinea pigs. The animals were divided into the following groups: Normal control group (NC), low-dose laser treatment group (L-LS), high-dose laser treatment group (H-LS), and Q-switched Nd:YAG treatment group (QC)...
January 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28424211/connecting-tubule-glomerular-feedback-mediates-tubuloglomerular-feedback-resetting-post-unilateral-nephrectomy
#4
Sumit R Monu, Yilin Ren, J X Masjoan Juncos, Kristopher Kutskill, Hong Wang, Nitin Kumar, Edward L Peterson, Oscar A Carretero
Unilaterally nephrectomized rats (UNx) have higher glomerular capillary pressure (PGC) that can cause significant glomerular injury in the remnant kidney. PGC is controlled by the ratio of afferent (Af-Art) and efferent arteriole resistance. Af-Art resistance in turn is regulated by two intrinsic feedback mechanisms: 1) Tubuloglomerular feedback (TGF) that causes Af-Art constriction in response to increased NaCl in the macula densa and 2) connecting tubule glomerular feedback (CTGF) that causes Af-Art dilatation in response to an increase in NaCl transport in the connecting tubule via the epithelial sodium channel (ENaC)...
April 19, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28424117/damage-control-surgery-and-the-management-of-a-cholecystocolic-fistula
#5
Patrick J Hunt, Gerry L Koons, Michael Murri, S Rob Todd
No abstract text is available yet for this article.
April 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28421779/oral-glutamine-reduces-myocardial-damage-after-coronary-revascularization-under-cardiopulmonary-bypass-a-randomized-clinical-trial
#6
Mariana Chávez-Tostado, Fernando Carrillo-Llamas, Porfirio Eduardo Martínez-Gutiérrez, Araceli Alvarado-Ramírez, Jaime Gilberto López-Taylor, José Clemente Vásquez-Jiménez, Clotilde Fuentes-Orozco, Jorge Rendón-Félix, Leire Irusteta-Jiménez, Vanessa Carolina Calil-Romero, José Antonio Ramírez-Jiménez, Luis Rodrigo Michel-Espinoza, Carmen Karina Contreras-López, Lizbeth Araceli Cuesta-Maquez, Alejandro González-Ojeda
BACKGROUND: Glutamine is the most abundant free amino acid in the body. It modulates immune cell function and is an important energy substrate for cells in critically ill patients. Reduction of injury cardiac markers had been observed in patients receiving intravenous glutamine and in a pilot study with oral glutamine. The aim of this study was to analyze the effect of preoperative oral supplementation of glutamine on postoperative serum levels of cardiac injury markers. METHODS: A randomized clinical trial was performed in 28 Mexican patients with ischemic heart disease who underwent cardiopulmonary bypass with extracorporeal circulation...
March 30, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28420801/the-impact-of-laparoscopic-ovarian-drilling-on-amh-ovarian-reserve-a-meta-analysis
#7
Saad Aks Amer, Tarek T El Shamy, Cathryn James, Ali H Yosef, Ahmed Aboelfadle Mohamed
Laparoscopic ovarian drilling (LOD) has been widely utilised as an effective treatment in anovulatory women with polycystic ovarian syndrome (PCOS). However, there has been a growing concern over a possible damaging effect of this procedure on ovarian reserve. The objective of this study was to investigate the hypothesis that LOD compromises ovarian reserve as measured by post-operative changes in circulating anti-Müllerian hormone (AMH). This meta-analysis included all cohort studies as well as randomised controlled trials investigating serum AMH concentrations and other ovarian reserve markers in PCOS women undergoing LOD...
April 18, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28419155/culture-expanded-allogenic-adipose-tissue-derived-stem-cells-attenuate-cartilage-degeneration-in-an-experimental-rat-osteoarthritis-model
#8
Li Mei, Bojiang Shen, Peixue Ling, Shaoying Liu, Jiajun Xue, Fuyan Liu, Huarong Shao, Jianying Chen, Aibin Ma, Xia Liu
Mesenchymal stem cell (MSC)-based cell therapy is a promising avenue for osteoarthritis (OA) treatment. In the present study, we evaluated the efficacy of intra-articular injections of culture-expanded allogenic adipose tissue-derived stem cells (ADSCs) for the treatment of anterior cruciate ligament transection (ACLT) induced rat OA model. The paracrine effects of major histocompatibility complex (MHC)-unmatched ADSCs on chondrocytes were investigated in vitro. Rats were divided into an OA group that underwent ACLT surgery and a sham-operated group that did not undergo ACLT surgery...
2017: PloS One
https://www.readbyqxmd.com/read/28418354/-clinical-and-morphological-signs-of-viral-damage-to-a-kidney-transplant
#9
S E Solovyeva, E M Paltseva, M M Morozova, M M Kaabak, N A Krainik, A V Matveev
AIM: Тo compare morphological changes and results of immunohistochemical (IHC) identification of viruses (polyomaviruses, adenoviruses, and herpesviruses) in the biopsy specimens with their clinical manifestations in recipients of renal transplants. MATERIAL AND METHODS: Morphological and IHC studies were conducted using 71 needle renal transplant biopsy specimens from patients in the study group and 10 renal biopsy specimens from those in the control group. A number of clinical indicators were estimated...
2017: Arkhiv Patologii
https://www.readbyqxmd.com/read/28416844/clinical-characteristics-of-neurogenic-dysphagia-in-adult-patients-with-chiari-malformation-type-i
#10
T Yu, J Li, K Wang, Y Ge, A C Jiang, L P Duan, Z Y Wang
OBJECTIVE: To investigate changes of swallowing function and associated symptoms in Chiari malformation typeI (CMI) patients with and without dysphagia by the analysis of their clinical and high-resolution manometry (HRM) parameters. METHODS: A total of 42 patients diagnosed with symptomatic CMI without atlantoaxial dislocations which were confirmed by clinical manifestations and magnetic resonance imaging (MRI) findings between January 2010 and July 2015 at Peking University Third Hospital were included in this study...
April 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28414769/creation-of-an-intramedullary-cavity-by-hemorrhagic-necrosis-removal-24-h-after-spinal-cord-contusion-in-rats-for-eventual-intralesional-implantation-of-restorative-materials
#11
Gabriel Guizar-Sahagun, Angelina Martinez-Cruz, Rebecca E Franco-Bourland, Eduardo Cruz-García, Alvaro Corona-Juarez, Araceli Diaz-Ruiz, Israel Grijalva, Horacio J Reyes-Alva, Ignacio Madrazo
Intramedullary hemorrhagic necrosis occurs early after spinal cord injury at the site of injury and adjacent segments. It is considered harmful because of its potential to aggravate secondary injury, and to interfere with axonal regeneration; it might also lead to an unfavorable environment for intralesional implants. Removal of hemorrhagic necrosis has been attempted before with variable results. The invasive nature of these procedures carries the risk of exacerbating damage to the injured cord. The overall objective for this study was to test several strategies for non-damaging removal of hemorrhagic necrosis and characterize the resulting cavity looking for a space for future intralesional therapeutic implants in rats with acute cord injury...
2017: PloS One
https://www.readbyqxmd.com/read/28412673/effect-of-controlled-hypotension-on-myocardial-ischemia-marker-in-eye-nose-related-surgery
#12
Yuexi Jin, Wanna Jiang, Wenlian Ye, Aifen Jiang, Le Liu
We aimed to investigate the effect of different controlled hypotension levels on myocardial enzymes and myocardial ischemia protein in elderly hypertension patients, and then provide clinical evidence of suitable controlled hypotension level for them. Then, 45 elderly hypertension patients received elective eye-nose related surgery with nasal endoscope, who were randomly and evenly divided into three groups, including A, B and C groups, with mean arterial pressure (MAP) decreased by 20%, 30% and 40% respectively...
November 2016: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28411705/mechanochemical-ablation-causes-endothelial-and-medial-damage-to-the-vein-wall-resulting-in-deeper-penetration-of-sclerosant-compared-with-sclerotherapy-alone-in-extrafascial-great-saphenous-vein-using-an-ex%C3%A2-vivo-model
#13
Mark S Whiteley, Scott J Dos Santos, Christopher T Lee, Jian-Mei Li
BACKGROUND: Nonthermal, tumescentless devices are the next generation of minimally invasive devices to treat varicose veins. We aimed to investigate the effects of mechanochemical ablation (MOCA) using ClariVein (Vascular Insights, Quincy, Mass) on ex vivo great saphenous vein with histology and immunofluorescent staining. METHODS: Extrafascial great saphenous veins were harvested during surgery for varicose veins and were treated ex vivo for 10 to 11 minutes with either liquid sclerotherapy or the use of ClariVein, with and without 3% sodium tetradecyl sulfate...
May 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28411414/laser-interstitial-thermotherapy-litt-in-epilepsy-surgery
#14
REVIEW
Christian Hoppe, Juri-Alexander Witt, Christoph Helmstaedter, Thomas Gasser, Hartmut Vatter, Christian E Elger
Besides other innovative stereotactic procedures (radiofrequency thermocoagulation, focused ultrasound, gamma knife) laser interstitial thermotherapy (LiTT) provides minimally invasive destruction of pathological soft tissues which could be especially relevant for epilepsy surgeries involving adult and pediatric patients. Unlike standard resections, no craniotomy is required; just a tiny borehole trepanation is sufficient. Damage to cortical areas when accessing deep lesions can be minimized or completely avoided, and treating epileptogenic foci near eloquent or even vital brain areas becomes possible...
April 6, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28408096/local-treatment-of-a-pharyngocutaneous-fistula-secondary-to-osteoradionecrosis
#15
Olga González-Antolín
Radionecrosis is a late, and difficult to treat,complication of radiotherapy performed on head and neck tumours, and it is difficult to treat. This process causes significant damage, not only in the skin, but also in muscular, nervous, vascular, and bone structures. This, in turn, leads to airway and digestive tract involvement, as well as a functional loss and a cosmetic defect that usually requires reconstructive surgery. Therefore, this process is associated with a significant loss in the quality of life of patients and involves a long hospital stay for treatment, as well as the necessary support measures...
April 10, 2017: Enfermería Clínica
https://www.readbyqxmd.com/read/28404559/surviving-murine-experimental-sepsis-affects-the-function-and-morphology-of-the-inner-ear
#16
Natalie Fischer, Nina Maria Mathonia, Georges Hoellerich, Julian Veser, Leyla Pinggera, Daniel Dejaco, Rudolf Glueckert, Anneliese Schrott-Fischer, Peter Lackner, Herbert Riechelmann, Joachim Schmutzhard
OBJECTIVE: Severe sepsis is known to result in various neurological long-term deficits in human. Recently, a link between severe, lethal sepsis and significant hearing loss with correlating histomorphological inner ear changes in mice (C57BL/6) was observed. However, if similar observations can be made in severe, non-lethal sepsis in mice is unclear. This study evaluates mice after severe, non-lethal sepsis for analogue functional and histomorphological alterations of the inner ear. MATERIALS AND METHODS: A total of 63 C57BL/6 mice were included in the study...
April 12, 2017: Biology Open
https://www.readbyqxmd.com/read/28399849/atorvastatin-does-not-protect-against-ischemia-reperfusion-damage-in-cholestatic-rat-livers
#17
Jimme K Wiggers, Rowan F van Golen, Joanne Verheij, Annemiek M Dekker, Thomas M van Gulik, Michal Heger
BACKGROUND: Extrahepatic cholestasis sensitizes the liver to ischemia/reperfusion (I/R) injury during surgery for perihilar cholangiocarcinoma. It is associated with pre-existent sterile inflammation, microvascular perfusion defects, and impaired energy status. Statins have been shown to protect against I/R injury in normal and steatotic mouse livers. Therefore, the hepatoprotective properties of atorvastatin were evaluated in a rat model of cholestatic I/R injury. METHODS: Male Wistar rats were subjected to 70% hepatic ischemia (during 30 min) at 7 days after bile duct ligation...
April 11, 2017: BMC Surgery
https://www.readbyqxmd.com/read/28398769/potential-involvement-of-the-epidermal-growth-factor-receptor-ligand-epiregulin-and-matrix-metalloproteinase-1-in-pathogenesis-of-chronic-rhinosinusitis
#18
Tetsuya Homma, Atsushi Kato, Masafumi Sakashita, Tetsuji Takabayashi, James E Norton, Lydia A Suh, Roderick G Carter, Kathleen E Harris, Anju T Peters, Leslie C Grammer, Jin-Young Min, Stephanie Shintani-Smith, Bruce K Tan, Kevin Welch, David B Conley, Robert C Kern, Robert P Schleimer
RATIONALE: Chronic rhinosinusitis (CRS) is a heterogeneous chronic inflammatory disease of the nose and paranasal sinuses that presents without (CRSsNP) or with nasal polyps (CRSwNP). Features of CRSwNP are the frequent presence of type 2 allergic inflammation and high prevalence of Staphylococcus aureus (SA) colonization. As inflammation persists, sinus tissue undergoes epithelial damage and repair along with polyp growth. Since one feature of damaged tissue is enhancement of growth factor signaling, we evaluated the presence of EGFR ligands and MMPs in CRS...
April 11, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28396721/resection-of-complex-pancreatic-injuries-benchmarking-postoperative-complications-using-the-accordion-classification
#19
Jake E Krige, Eduard Jonas, Sandie R Thomson, Urda K Kotze, Mashiko Setshedi, Pradeep H Navsaria, Andrew J Nicol
AIM: To benchmark severity of complications using the Accordion Severity Grading System (ASGS) in patients undergoing operation for severe pancreatic injuries. METHODS: A prospective institutional database of 461 patients with pancreatic injuries treated from 1990 to 2015 was reviewed. One hundred and thirty patients with AAST grade 3, 4 or 5 pancreatic injuries underwent resection (pancreatoduodenectomy, n = 20, distal pancreatectomy, n = 110), including 30 who had an initial damage control laparotomy (DCL) and later definitive surgery...
March 27, 2017: World Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28395785/acute-mesenteric-ischemia-part-ii-vascular-and-endovascular-surgical-approaches
#20
REVIEW
Jussi M Kärkkäinen, Stefan Acosta
The modern treatment of acute mesenteric ischemia (AMI) requires seamless collaboration of gastrointestinal surgeons, vascular surgeons, and interventional radiologists. The treatment strategy is straightforward aiming at rapid restoration of blood flow to the intestine. Bowel resection is performed on demand. The first thing to consider is the patient's clinical condition at presentation, whether there are signs of peritonitis or not, and whether the patient is hemodynamically stable or not. Second, there are four etiologies of AMI that need to be distinguished as they differ in treatment: superior mesenteric artery embolism, mesenteric arterial occlusive disease, mesenteric venous thrombosis, and non-occlusive mesenteric ischemia...
February 2017: Best Practice & Research. Clinical Gastroenterology
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