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https://www.readbyqxmd.com/read/28934715/stercoral-perforation-of-the-rectosigmoid-colon-due-to-chronic-constipation-a-case-report
#1
Mustafa Fevzi Celayir, Hakan Mustafa Köksal, Mehmet Uludag
INTRODUCTION: Chronic constipation is very common in elderly patients. As a result of this situation fecaloma is also frequently seen at these ages. However, the stercoral perforation caused by fecaloma is a rare situation to occur. The rectosigmoid colon is the most affected colonic segment. It is seen in older patients with concomitant diseases and a low quality of life. PRESENTATION OF CASE: Here in this case, we have to report an 83 - year-old male patient who came to the emergency room with complaints of abdominal pain and constipation for two days...
September 14, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28934696/synthesis-and-application-of-a-plastic-antibody-in-electrochemical-microfluidic-platform-for-oxytocin-determination
#2
Piyush Sindhu Sharma, Zofia Iskierko, Krzysztof Noworyta, Maciej Cieplak, Pawel Borowicz, Wojciech Lisowski, Francis D'Souza, Wlodzimierz Kutner
By means of molecular imprinting of a conducting polymer, molecular cavities selective for oxytocin nonapeptide, an autism biomarker, were designed. Embedding of the oxytocin template, and then its extracting from the molecularly imprinted polymer (MIP) was confirmed by the XPS analysis. AFM imaging of the MIP film surface indicated changes in mechanical properties of the film after template extraction. The MIP synthetic receptor was deposited by potentiodynamic electropolymerization as a thin film on an Au film electrode in an electrochemical miniaturized microfluidic cell...
September 9, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28934537/effect-of-retroperitoneal-pelvic-packing-on-pelvic-cavity-pressure-a-cadaveric-study
#3
Yukio Sato, Kazuhiko Sekine, Takayuki Shibusawa, Kosuke Tajima, Junichi Sasaki, Nobuaki Imanishi, Sadakazu Aiso, Shingo Hori
Limited clinical evidence demonstrates the effectiveness of direct retroperitoneal pelvic packing for hemorrhage control in pelvic fractures due to the difficulty in measuring pressure on the pelvic walls within the pelvic cavity after retroperitoneal pelvic packing. Using a cadaver model, the authors aimed to assess whether retroperitoneal pelvic packing generates pressure that exceeds the venous return and arterial pressure in the pelvis. The pressure on the pelvic wall was measured in 5 fresh Japanese cadavers...
September 21, 2017: Orthopedics
https://www.readbyqxmd.com/read/28934316/pathogenesis-of-oral-fiv-infection
#4
Craig Miller, Karen Boegler, Scott Carver, Martha MacMillan, Helle Bielefeldt-Ohmann, Sue VandeWoude
Feline immunodeficiency virus (FIV) is the feline analogue of human immunodeficiency virus (HIV) and features many hallmarks of HIV infection and pathogenesis, including the development of concurrent oral lesions. While HIV is typically transmitted via parenteral transmucosal contact, recent studies prove that oral transmission can occur, and that saliva from infected individuals contains significant amounts of HIV RNA and DNA. While it is accepted that FIV is primarily transmitted by biting, few studies have evaluated FIV oral infection kinetics and transmission mechanisms over the last 20 years...
2017: PloS One
https://www.readbyqxmd.com/read/28933511/-renal-pleomorphic-sarcoma-in-four-guinea-pigs-cavia-porcellus
#5
Julia Hankel, Marion Hewicker-Trautwein, Martina Warschau, Anna Milena Thöle, Michael Fehr
OBJECTIVE: Renal tumours apparently are rare not only in cats and dogs, but also in guinea pigs and can be difficult to diagnose. The aim of this study is to describe the clinical, pathological and immunohistochemical findings in guinea pigs with renal tumours. Furthermore, the symptoms, diagnostic possibilities and therapy are compared with renal tumours in other small animals, including cats and dogs. MATERIAL AND METHODS: During a period of 4 years and 4 months the data of guinea pigs that had been presented in the clinic were retrospectively analysed...
September 20, 2017: Tierärztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
https://www.readbyqxmd.com/read/28933479/linking-classical-and-molecular-optomechanics-descriptions-of-sers
#6
Mikołaj K Schmidt, Ruben Esteban, Felix Benz, Jeremy J Baumberg, Javier Aizpurua
The surface-enhanced Raman scattering (SERS) of molecular species in plasmonic cavities can be described as an optomechanical process where plasmons constitute an optical cavity of reduced effective mode volume which effectively couples to the vibrations of the molecules. An optomechanical Hamiltonian can address the full quantum dynamics of the system, including the phonon population build-up, the vibrational pumping regime, and the Stokes-anti-Stokes correlations of the photons emitted. Here we describe in detail two different levels of approximation to the methodological solution of the optomechanical Hamiltonian of a generic SERS configuration, and compare the results of each model in light of recent experiments...
September 21, 2017: Faraday Discussions
https://www.readbyqxmd.com/read/28933370/a-case-of-systemic-infection-caused-by-streptococcus-pyogenes-oral-infection-in-an-edentulous-patient
#7
Yumi Inagaki, Masanobu Abe, Ryoko Inaki, Liang Zong, Hideyuki Suenaga, Takahiro Abe, Kazuto Hoshi
BACKGROUND: Infections in the oral and maxillofacial region can sometimes extend beyond the oral cavity, with serious consequences. Most oral infections are odontogenic, occurring through the root apex of the tooth or the periodontal pocket. It thus makes sense that edentulous patients have a much lower risk of oral bacterial infection. For this reason, while there are many reports on systemic infections caused by oral infections, few of these describe such infections in edentulous patients...
August 18, 2017: Diseases (Basel)
https://www.readbyqxmd.com/read/28933351/dosimetric-effects-of-polyethylene-glycol-surface-coatings-on-gold-nanoparticle-radiosensitization
#8
Brandon Koger, Charles Kirkby
One of the main appeals of using gold nanoparticles (GNPs) as radiosensitizers is that their surface coatings can be altered to manipulate their pharmacokinetic properties. However, Monte Carlo studies of GNP dosimetry tend to neglect these coatings, potentially changing the dosimetric results. This study quantifies the dosimetric effects of including a polyethylene glycol (PEG) surface coating on GNPs over both nanoscopic and microscopic ranges. Two dosimetric scales were explored using PENELOPE Monte Carlo simulations...
September 21, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28933334/-damage-control-surgery-in-polytrauma-patients-with-pelvic-fractures-is-it-possible-to-use-internal-fixation
#9
L Havlůj, V Džupa, R Gürlich
Current polytrauma management is multidisciplinary, with Damage Control Surgery (DCS), Damage Control Orthopaedics (DCO) and Damage Control Resuscitation (DCR) being applied in the first few hours after injury. The most severe group of polytrauma patients are those with circulatory instability and massive blood loss as a consequence of unstable pelvic fractures. In treating these patients, of crucial importance is the speed and quality of stabilisation of pelvic fracture fragments. The authors present two case reports of polytrauma patients with unstable pelvic fractures, in whom open reduction and internal fixation was performed on the anterior fracture segment through extended laparotomy in order to stop bleeding into the abdominopelvic cavity as part of the DCS approach...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28933241/characterization-of-human-s-adenosyl-homocysteine-hydrolase-in-vitro-and-identification-of-its-potential-inhibitors
#10
Weiwei Hao, Yanhua Li, Qiuli Shan, Tian Han, Wencheng Li, Sheng He, Kongkai Zhu, Yumei Li, Xiaojun Tan, Jinsong Gu
Human S-adenosyl-homocysteine hydrolase (SAHH, E.C.3.3.1.1) has been considered to be an attractive target for the design of medicines to treat human disease, because of its important role in regulating biological methylation reactions to catalyse the reversible hydrolysis of S-adenosylhomocysteine (SAH) to adenosine (Ado) and l-homocysteine (Hcy). In this study, SAHH protein was successfully cloned and purified with optimized, Pichia pastoris (P. pastoris) expression system. The biological activity results revealed that, among the tested compounds screened by ChemMapper and SciFinder Scholar, 4-(3-hydroxyprop-1-en-1-yl)-2-methoxyphenol (coniferyl alcohol, CAS: 458-35-5, ZINC: 12359045) exhibited the highest inhibition against rSAHH (IC50= 34 nM)...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28932851/modulation-in-the-acidity-constant-of-acridine-dye-with-cucurbiturils-stimuli-responsive-pka-tuning-and-dye-relocation-into-live-cells
#11
R Khurana, N Barooah, A C Bhasikuttan, J Mohanty
The noncovalent host-guest interactions of the cationic (AcH(+)) and neutral (Ac) forms of an acridine dye with macrocyclic hosts such as cucurbit[7]uril (CB7) and cucurbit[8]uril (CB8) have been investigated to evaluate the effect of cavity size on the photophysical properties and the protolytic equilibrium of the acridine dye. The cationic form undergoes significant complexation with CB7 (Keq = 10(6) M(-1)), causing a sharp decrease in the fluorescence intensity, whereas the neutral Ac form of the dye undergoes weak complexation with CB7 (Keq = 10(3) M(-1)) and the binding constant is lowered by three orders of magnitude compared to that of the CB7-AcH(+) system...
September 21, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/28932584/two-cases-of-pulmonary-cysticercosis-manifesting-as-pleural-effusion-case-report-and-literature-review
#12
Youfei Chen, Pingli Wang, Liren Ding
Cysticercosis is an important public health problem in developing countries. The major involvement sites are the central nervous system and the eyes, although striated muscles and subcutaneous tissues are frequently involved in the disseminated form of disease. Pulmonary involvement in cysticercosis is very rare and ill-defined nodular shadows distributed throughout the lung is the usual radiological presentation. Only one case of cysticercosis presenting as lung cavity with pleural effusion has been reported so far in literature...
August 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28932349/novel-synthetic-adhesive-as-an-effective-alternative-to-fibrin-based-adhesives
#13
Pramod Kadaba Srinivasan, Vera Sperber, Mamdouh Afify, Hirokazu Tanaka, Kenji Fukushima, Babette Kögel, Felix Gremse, René Tolba
AIM: To compare a novel, fully synthetic, polyurethane based glue (MAR-1) to fibrin sealant in a partial liver resection rat model. METHODS: After 50% resection of the lateral left liver lobe in male Wistar rats (n = 7/group/time point), MAR-1, Fibrin or NaCl was applied. After 14, 21 and 90 postoperative days, sealant degradation, intra-abdominal adhesions were scored, and histological examination of liver tissue was performed. RESULTS: (Mean ± SEM) (MAR-1 vs Fibrin vs NaCl)...
August 28, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28932332/juvenile-psammomatoid-ossifying-fibroma-jpof-of-proximal-radius-a-rare-entity
#14
Jagadish Prabhu, Veena Nagaraj, Iftikhar Ahmed Mukhtar
BACKGROUND: Juvenile psammomatoid ossifying fibroma (JPOF) is a rare fibro-osseous lesion that usually occurs in the facial bones. The pathognomonic histopathologic feature is the presence of spherical ossicles, which are similar to psammoma bodies. It is considered to be a unique lesion because of its reported tendency to occur in children and adolescents and its tendency for locally aggressive growth. Because this lesion is aggressive in nature with high recurrence rate, early detection and complete surgical excision are essential...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28932257/a-novel-method-for-multiple-bowel-injuries-a-pilot-canine-experiment
#15
Jun Ke, Weihang Wu, Nan Lin, Weijin Yang, Zhicong Cai, Wei Wu, Dongsheng Chen, Yu Wang
BACKGROUND: Intestinal ligation is the cornerstone for damage control in abdominal emergency, yet it may lead to bowel ischemia. Although intestinal ligation avoids further peritoneal cavity pollution, it may lead to an increased pressure within the bowel segments and rapid bacterial translocation. In this study, we showed that severed intestine could be readily reconnected by using silicon tubes and be secured by using rubber bands in a canine model. METHODS: Adult Beagle dogs, subject to multiple intestinal transections and hemorrhagic shock by exsanguination, randomly received conventional ligation vs...
2017: World Journal of Emergency Surgery: WJES
https://www.readbyqxmd.com/read/28932061/epidermal-cysts-a-clinicopathological-analysis-with-emphasis-on-unusual-findings
#16
Jitendra Singh Nigam, Jyotsna Naresh Bharti, Vivek Nair, Chitrawati Bal Gargade, Archana Hemant Deshpande, Biswajit Dey, Ashok Singh
BACKGROUND: Epidermoid cysts, one of the common benign intradermal or subcutaneous tumors commonly result from the trauma to the pilosebaceous unit in the hair bearing area. In areas without hair, these cysts are considered implantation and proliferation of squamous epithelium into the dermis due to injury. AIMS: The aim is to evaluate the clinicopathological details with emphasis on unusual findings related to epidermoid cysts. STUDY DESIGN: This is a retrospective cross-sectional study carried out over 2 years...
July 2017: International Journal of Trichology
https://www.readbyqxmd.com/read/28932056/erupted-odontome-associated-with-a-primary-molar-a-unique-clinical-presentation-4-year-follow-up
#17
Shaik Hasanuddin, E Rajendra Reddy
Erupted odontomas occur very rarely in both the primary and permanent dentitions. The present case report discusses an unusual erupted odontome associated with a primary first mandibular molar. A 7-year-old female patient with an erupted odontome in the oral cavity was reported. The surgical extraction of odontome was performed under local anesthesia to allow eruption of underlying premolar tooth. After 4 years of follow-up, the first premolar had erupted with an unusual occlusal morphology, similar to that of a primary first molar...
May 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28932047/a-relationship-between-salivary-flow-rates-and-candida-counts-in-patients-with-xerostomia
#18
Suchetha Devendrappa Nadig, Deepak Timmasandra Ashwathappa, Muniraju Manjunath, Sowmya Krishna, Araleri Gopalkrishna Annaji, Praveen Kunigal Shivaprakash
CONTEXT: Most of the adult population is colonized by Candida in their oral cavity. The process of colonization depends on several factors, including the interaction between Candida and salivary proteins. Therefore, salivary gland hypofunction may alter the oral microbiota and increase the risk for opportunistic infections, such as candidiasis. Hence, it is necessary to evaluate the relationship between salivary flow rates (SFRs) and Candida colony counts in the saliva of patients with xerostomia...
May 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28932039/oral-focal-mucinosis-of-posterior-maxilla
#19
Kumar Nilesh, Huzaifa S Kothi, Rahul Patil, R C Pramod
Oral focal mucinosis (OFM) is a rare connective tissue disorder characterized by myxoid degeneration of submucosal connective tissue. It usually presents as gingival or mucosal overgrowth. Due to its uncommon occurrence and lack of pathognomonic clinical or radiological features, diagnosis mainly relies on histopathological evaluation. The paper reports a rare case of large OFM in a 58-year-old female patient involving the posterior maxilla and hard palate. Diagnosis of the lesion was established based on histopathological and immunohistochemical analysis...
May 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28931888/automatic-classification-of-cancerous-tissue-in-laserendomicroscopy-images-of-the-oral-cavity-using-deep-learning
#20
Marc Aubreville, Christian Knipfer, Nicolai Oetter, Christian Jaremenko, Erik Rodner, Joachim Denzler, Christopher Bohr, Helmut Neumann, Florian Stelzle, Andreas Maier
Oral Squamous Cell Carcinoma (OSCC) is a common type of cancer of the oral epithelium. Despite their high impact on mortality, sufficient screening methods for early diagnosis of OSCC often lack accuracy and thus OSCCs are mostly diagnosed at a late stage. Early detection and accurate outline estimation of OSCCs would lead to a better curative outcome and a reduction in recurrence rates after surgical treatment. Confocal Laser Endomicroscopy (CLE) records sub-surface micro-anatomical images for in vivo cell structure analysis...
September 20, 2017: Scientific Reports
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