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Soumen Chakraborty, Gaurav Das, Surajit Ghosh, Dipakranjan Mal
An efficient and regioselective synthetic route to naphthoquinone/naphthoquinol-carbohydrate hybrids has been developed. It is based upon anionic annulation of 3-nucleofugalphthalides with an acrylate appended sugar moiety. In each of the annulations studied, the arene-carbohydrate hybrids were obtained in good to excellent yields. The in vitro cytotoxic activity of the synthetic naphthoquinone/naphthonol-carbohydrate hybrids were evaluated against the human cervical cancer cell line (HeLa), and a few of them were found to exhibit potent anticancer activity against the cell line...
October 26, 2016: Organic & Biomolecular Chemistry
Gulsen Cigsar, Ali Cihat Yildirim, Turgut Anuk, Hakan Guzel, Elnare Gunal, Saygı Gulkan, Burak Irem, Caglar Bilgin
PURPOSE: Acute appendicitis is the most frequent emergency procedure that requires acute surgical intervention. The mortality risk is higher in geriatric patients. There is not a single parameter to diagnose it easily and negative appendectomy is traditionally accepted however the operation itself can cause morbidity and mortality especially in elderly patients. The neutrophil-to-lymphocyte ratio is a predictor of acute inflammation and was recently studied for the diagnosis of AA. The aim of this study is to analyze the diagnostic value of NLR on positive appendectomy rates amongst geriatric and nongeriatric patients...
October 26, 2016: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
David Santos, Yi-Ju Chiang, Brian Badgwell
Appendectomy is standard of care for uncomplicated appendicitis, but cancer patients may not be optimal surgical candidates. Interval appendectomy is controversial, and appendiceal malignancy is rare. Study objectives were to review the role of surgery, observation, and interventional radiology (IR)-guided drainage in patients with appendicitis and advanced malignancy. Retrospective review was performed on cancer patients presenting to a tertiary academic cancer center from January 1, 2001 to December 31, 2014...
October 2016: American Surgeon
Yang Lu, Scott Friedlander, Steven L Lee
Historically, performing a negative appendectomy (NA) was justified to reduce the incidence of perforation. Furthermore, it is also believed that NA is associated with minimal morbidity and cost. The purpose of this study was to evaluate the frequency, clinical characteristics, and economic implications of NA. We reviewed the inpatient admissions on 274,405 patients who underwent nonincidental appendectomy as their primary procedure from the California State Inpatient Databases (2005-2011). Overall, 96.9 per cent had appendicitis (nonperforated = 73...
October 2016: American Surgeon
Francesca Tocchioni, Chiara Tani, Laura Bartolini, Maria Moriondo, Francesco Nieddu, Patrizia Pecile, Chiara Azzari, Antonio Messineo, Marco Ghionzoli
Bacterial growth of peritoneal fluid specimens obtained during surgical procedures for acute appendicitis may be useful to optimize further antibiotic therapy in complicated cases. DNA amplification represents a fast technique to detect microbial sequences. We aimed to compare the potential of DNA amplification versus traditional bacterial growth culture highlighting advantages and drawbacks in a surgical setting. Peritoneal fluid specimens were collected during surgery from 36 children who underwent appendectomy between May and December 2012...
September 19, 2016: Pediatric Reports
Boqian Sun, Shunyue Wang, Haixia Li, Xiaoxia He
A micromachined gyroscope in which a high-speed spinning rotor is suspended electrostatically in a vacuum cavity usually functions as a dual-axis angular rate sensor. An inherent coupling error between the two sensing axes exists owing to the angular motion of the spinning rotor being controlled by a torque-rebalance loop. In this paper, a decoupling compensation method is proposed and investigated experimentally based on an electrostatically suspended micromachined gyroscope. In order to eliminate the negative spring effect inherent in the gyroscope dynamics, a stiffness compensation scheme was utilized in design of the decoupled rebalance loop to ensure loop stability and increase suspension stiffness...
October 20, 2016: Sensors
M Fernández Castilla, A Salazar Villacorta, A Martín Nalda, J C Ferreres Piñas, A Coma Muñoz, G Guillén Burrieza
INTRODUCTION: Appendicular actinomycosis is a rare disease produced by cecal appendix invasion by Actinomyces gender bacteria after a predisposing cause that disrupts mucosal barrier, such as acute appendicitis. The highest frequency appears in adults; however, there are cases in paediatric age described in literature. The aim of this article is to introduce a case of appendicular actinomycosis in a child with atypical presentation and to review the literature. CLINICAL CASE: 10-year-old boy transferred to our hospital due to intraoperative finding at a different centre of a right flank tumor, without identification of cecal appendix...
April 20, 2016: Cirugía Pediátrica: Organo Oficial de la Sociedad Española de Cirugía Pediátrica
A García Baglietto, C Barceló Cañellas, C Marhuenda Irastorza
INTRODUCTION: Stump appendicitis is the remaining appendicular tissue inflammation after a variable length of time. It is a very infrequent pathology with a paucity in pediatric publications, and given the fact that a delay in its diagnosis could lead to an increased morbidity, this is the reason of its clinical relevance. CLINICAL CASE: A 10 years old girl who had laparoscopic excision of a flemonous-gangrenous appendicitis and who 45 days after surgery showed new clinical symptoms compatible with a diagnosis of acute appendicitis...
October 10, 2016: Cirugía Pediátrica: Organo Oficial de la Sociedad Española de Cirugía Pediátrica
M Fanjul, L Pérez, J Cerdá, M Zornoza, R Rojo, I Simal, M A García-Casillas, C Corona, D Peláez, E Molina, A Parente, S Rivas, J M Angulo, E De Tomás
BACKGROUND: Multiple approaches to the treatment of simple and complicated (gangrenous or perforated) appendicitis in children have been promoted. Our goal is to develop a new protocol for these patients that allows shorter hospital stays without increasing complications rates. METHODS: Prospective collected data of patients undergoing appendicitis treated according to the new protocol for a period of 7 months were reviewed. This protocol consists on antibiotic prophylaxis in all cases continued with triple antibiotic regimen in complicated appendicitis...
October 10, 2016: Cirugía Pediátrica: Organo Oficial de la Sociedad Española de Cirugía Pediátrica
Ulf Lindström, Sofia Exarchou, Elisabeth Lie, Mats Dehlin, Helena Forsblad-d'Elia, Johan Askling, Lennart Jacobsson
BACKGROUND: The role of environmental exposures in the pathogenesis of ankylosing spondylitis (AS) remains unclear. In particular, two types of exposures have been suspected to play a role: mechanical stress and infections. The objective of this case-control study was to determine if childhood infections are associated with later development of AS. METHODS: The cases with AS were identified through the Swedish national outpatient specialised-care register, based on having been given at least one AS diagnosis in the register between 2001 and 2010...
October 22, 2016: Arthritis Research & Therapy
Shiping Liu, Shaojun Ding
BACKGROUND: Acetylation of the xylan backbone was a major obstacle to enzymatic decomposition. Removal of acetyl groups by acetyl xylan esterases (AXEs) is essential for completely enzymatic hydrolysis of xylan. Appended carbohydrate binding modules (CBMs) can promote the enzymatic deconstruction of plant cell walls by targeting and proximity effects. Fungal acetyl xylan esterases are strictly appended to cellulose-specific CBM1. It is still unclear whether xylan-specific CBMs have a greater advantage than CBM1 in potentiating the activity of fungal deacetylating enzymes and its synergistic hydrolysis of different substrates with xylanase...
October 22, 2016: BMC Biotechnology
Fawaz Abo-Alhassan, Fatemah Faras, Yousef M Malek, Munish Joneja, Piyaray M Dhar
BACKGROUND: Appendicular schistosomiasis is an unusual etiology of acute appendicitis, which has been reported in countries endemic in schistosomiasis, such as sub-saharan Africa and South America. Nowadays, due to globalization, this disease has been diagnosed in non-endemic countries. Kuwait is a country possessing a larger percentage of foreigners than national citizens. Therefore, several cases of schistosomal appendicitis were found. METHOD: The clinicopathological records of all patients that underwent appendectomy during January 2007 and December 2011 were recorded from the archives of Al-Adan Hospital in Kuwait...
October 17, 2016: International Journal of Surgery Case Reports
J E Slotta, U Kopsch, M Ghadimi, O Kollmar
BACKGROUND: Acute appendicitis is a common disease which requires immediate surgical treatment of the focus of inflammation. So far there are no reliable data on how much time can pass between hospitalization, indications for surgery and initiating surgery without an increased risk of morbidity and mortality for the patient. OBJECTIVE: The aim of this study was to investigate how much time can lapse between admission and initiation of surgery for acute appendicitis while still providing patient safety and no increase in complication rates...
October 21, 2016: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
Murat Özgür Kılıç, Cem Emir Güldoğan, İlhan Balamir, Mesut Tez
BACKGROUND: The early prediction of gangrenous/perforated appendicitis is of great importance for the surgical planning, further treatments, and predicting the course of disease. Ischemia-modified albumin (IMA) was previously reported as a biomarker of various ischemia-based diseases. Our aim is to determine the predictive value of serum IMA in the severity of acute appendicitis. METHODS: Sixty-two patients who underwent urgent appendectomy were included in the study...
October 7, 2016: American Journal of Emergency Medicine
Byeong Geon Jeon
BACKGROUND: The aim of this study was to assess predictive factors for negative appendectomy and to evaluate the outcomes of negative appendectomy. METHODS: A retrospective chart review of 4,878 patients who underwent appendectomy at our institution from January 2008 to December 2014 was performed. RESULTS: Younger age (≤15 years), normal white blood cell count, appendix diameter of less than 6 mm on computed tomography (CT), and CT grade less than 3 were found to be independent predictive factors for negative appendectomy...
July 28, 2016: American Journal of Surgery
Joey Chan Yiing Beh, Anandswaroop Srinivas Uppaluri, Beatrice Fang Ju Koh, Peng-Chung Cheow
Ingested foreign bodies tend to pass through the gastrointestinal tract without incidence, and vast majority of cases do not need intervention. Rarely, these foreign bodies drop into the appendix and not likely to re-enter the normal digestive tract. We describe a case of a 72-year-old male patient who presented with right iliac fossa pain of 3-day duration. Clinical examination suggested classic acute appendicitis. Blood test results revealed leukocytosis. Computed tomography of the abdomen and pelvis showed evidence of acute appendicitis and a linear hyperdensity (foreign body) perforating the appendix...
July 2016: Journal of Radiology Case Reports
Marcos Prada-Arias, José Luis Vázquez, Ángel Salgado-Barreira, Javier Gómez-Veiras, Margarita Montero-Sánchez, José Ramón Fernández-Lorenzo
AIM: The aim of this study was to assess the diagnostic accuracy of the biomarker fibrinogen (FB), along with the more traditional markers white blood cell count (WBC), absolute neutrophil count (ANC), and C-reactive protein (CRP), to discriminate appendicitis from nonspecific abdominal pain (NSAP) in children. METHODS: We prospectively evaluated all children aged 5 to 15 years admitted for suspected appendicitis at an academic pediatric emergency department during 2 years...
October 5, 2016: American Journal of Emergency Medicine
Julian C Harnoss, Isabelle Zelienka, Pascal Probst, Kathrin Grummich, Catharina Müller-Lantzsch, Jonathan M Harnoss, Alexis Ulrich, Markus W Büchler, Markus K Diener
OBJECTIVE: The aim was to investigate available evidence regarding effectiveness and safety of surgical versus conservative treatment of acute appendicitis. SUMMARY OF BACKGROUND DATA: There is ongoing debate on the merits of surgical and conservative treatment for acute appendicitis. METHODS: A systematic literature search (Cochrane Library, Medline, Embase) and hand search of retrieved reference lists up to January 2016 was conducted to identify randomized and nonrandomized studies...
October 17, 2016: Annals of Surgery
Valirie Ndip Agbor, Tsi Njim, Leopold Ndemnge Aminde
BACKGROUND: Inguinal hernias in women of reproductive age containing the ovary are very rare. When they occur in this age group, they are mostly associated with malformations of the urogenital system. Prompt surgical intervention is the key to ensure survival of the ovary. Here we present a case of an ectopic ovary presenting like an acute appendicitis. CASE PRESENTATION: A 16-year-old Cameroonian girl presented at our emergency service with an acute exacerbation of a mild and intermittent right iliac fossa pain of 5 days' duration...
October 19, 2016: Journal of Medical Case Reports
Chih-Cheng Luo, Kuang-Fu Cheng, Chen-Sheng Huang, Hung-Chieh Lo, Sheng-Mao Wu, Hung-Chang Huang, Wen-Kuei Chien, Ray-Jade Chen
BACKGROUND: In this study, we studied the therapeutic effectiveness of percutaneous drainage with antibiotics and the need for an interval appendectomy for treating appendiceal abscess in children with a research-oriented dataset released by the Bureau of National Health Insurance in Taiwan through the Collaboration Center for Health Information Application (CCHIA). METHODS: We identified 1225 patients under 18 years of age who had non-surgical treatment for an appendiceal abscess between 2007 and 2012 in a Taiwan CCHIA dataset...
October 18, 2016: BMC Surgery
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