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https://www.readbyqxmd.com/read/28900991/-transanal-endoscopic-microsurgery-for-treatment-of-rectal-neuroendocrine-tumors
#1
Qianqian Shao, Guole Lin, Huizhong Qiu
OBJECTIVE: To assess the efficacy of full-thickness excision using transanal endoscopic microsurgery (TEM) in the treatment of rectal neuroendocrine tumors (NET). METHODS: Clinicopathological and follow-up data of 90 rectal NET patients who underwent TEM between December 2006 and December 2016 at our department were retrospectively analyzed. TEM was performed as primary excision in 66 patients and as the second complete surgery because of suspected positive margin of samples after colonoscopic polypectomy in 24 patients...
September 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28899630/protection-against-infectious-bronchitis-virus-by-spike-ectodomain-subunit-vaccine
#2
Fatma Eldemery, Kellye S Joiner, Haroldo Toro, Vicky L van Santen
The avian coronavirus infectious bronchitis virus (IBV) S1 subunit of the spike (S) glycoprotein mediates viral attachment to host cells and the S2 subunit is responsible for membrane fusion. Using IBV Arkansas-type (Ark) S protein histochemistry, we show that extension of S1 with the S2 ectodomain improves binding to chicken tissues. Although the S1 subunit is the major inducer of neutralizing antibodies, vaccination with S1 protein has been shown to confer inadequate protection against challenge. The demonstrated contribution of S2 ectodomain to binding to chicken tissues suggests that vaccination with the ectodomain might improve protection compared to vaccination with S1 alone...
September 9, 2017: Vaccine
https://www.readbyqxmd.com/read/28893560/endoscopic-mucosal-resection-is-superior-to-rectal-suction-biopsy-for-analysis-of-enteric-ganglia-in-constipation-and-dysmotility
#3
Kenneth Barshop, Field F Willingham, William R Brugge, Lawrence R Zukerberg, Braden Kuo
BACKGROUND AND AIMS: Patients with chronic constipation or motility disorders may be referred for rectal suction biopsy (RSB) to rule out Hirschsprung's disease (HD). RSB may not be successful beyond infancy due to the increased thickness of rectal mucosa. Endoscopic mucosal resection (EMR) could improve the diagnostic yield for HD when compared with traditional RSB because of the larger and deeper samples acquired for analysis. METHODS: In this prospective, single-center study, patients referred for RSB were offered enrollment for concurrent EMR...
September 8, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28887721/narrow-implants-2-75-and-3-25%C3%A2-mm-diameter-supporting-a-fixed-splinted-prostheses-in-posterior-regions-of-mandible-one-year-results-from-a-prospective-cohort-study
#4
Tommaso Grandi, Luigi Svezia, Giovanni Grandi
BACKGROUND: Can multiple splinted narrow-diameter implants be used as definitive implants in patients with insufficient bone ridge thickness in posterior regions of the mandible? With this aim, we evaluated their outcomes in this set up to 1 year after loading. METHODS: Forty-two patients with a mean age of 61.3 years old (range 49-73) in need of fixed prosthetic implant-supported rehabilitations in the posterior region of the mandible, presenting a thin alveolar crest, were selected...
September 8, 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28885326/melanoma-in-situ-of-penis-a-very-rare-entity-a-case-report-and-review-of-the-literature
#5
Roberto Baraziol, Mauro Schiavon, Eugenio Fraccalanza, Gioacchino De Giorgi
RATIONALE: Melanoma in situ of the penis is very rare and there are no clear guidelines for its surgical treatment. PATIENT CONCERNS: The authors describe the case of a 69-year-old man who presented with an asymptomatic brown macula on his glans penis and foreskin that appeared about 8 years earlier, enlarged in the last few months. DIAGNOSES: A diagnostic biopsy showed the characteristics of a melanoma in situ. INTERVENTIONS: The authors decided to excise the lesion keeping a healthy margin of 1 cm all over around except close to the urethral meatus, where it was impossible, and where only 5 mm of free margin was excised...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28880384/transabdominal-sonography-to-measure-the-total-vaginal-and-mucosal-thicknesses
#6
Adrian Balica, Katherine Schertz, Daniella Wald-Spielman, Susan Egan, Gloria Bachmann
Transabdominal and transvaginal sonography are used to measure bladder wall and detrusor thickness. Only transvaginal sonography has been used to measure the vaginal wall thickness. We describe the use of transabdominal sonography to measure the total vaginal wall thickness and total vaginal mucosal thickness at the bladder trigone. The mean bladder wall thickness and SD from published data were within the 95% confidence interval of our data. Total vaginal and mucosal thicknesses are reliable measurements, which require specific evaluation in a postmenopausal population...
October 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/28877814/limited-resection-of-the-duodenum-for-nonampullary-duodenal-tumors-with-review-of-the-literature
#7
REVIEW
Daisuke Hashimoto, Kota Arima, Akira Chikamoto, Katsunobu Taki, Risa Inoue, Takayoshi Kaida, Takaaki Higashi, Katsunori Imai, Toru Beppu, Hideo Baba
The surgical management of duodenal pathology is challenging because of its retroperitoneal position and shared blood supply with the pancreas. We present three types of limited resection of the duodenum for the removal of superficial or small nonampullary duodenal (NADL) lesions, and also a review of the English literature regarding management, such as endoscopic resection and limited duodenal resection. Ten cases underwent limited resections of the duodenum for superficial or small NADL lesions from 2011 to 2015...
November 1, 2016: American Surgeon
https://www.readbyqxmd.com/read/28875289/-diagnostics-of-malignant-melanoma-of-the-skin-recommendations-of-the-current-s3-guidelines-on-histology-and-molecular-pathology
#8
C Rose
The updated S3 guidelines on malignant melanoma were established in August 2016. The principles of diagnostics and classification are based on the histopathological results from the primary tumor and if necessary the sentinel lymph nodes. The most important factor for prognosis is the tumor thickness according to Breslow and the detection of sentinel node micrometastases. The surgical safety margin after excision is dependent on the tumor thickness. Furthermore, ulceration of the primary tumor and presence of mitosis in melanomas less than 1 mm in thickness are also considered in the T‑classification...
September 5, 2017: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/28852321/systematic-review-of-giant-gastric-lipomas-reported-since-1980-and-report-of-two-new-cases-in-a-review-of-117110-esophagogastroduodenoscopies
#9
Mitchell S Cappell, Charlton E Stevens, Mitual Amin
AIM: To systematically review the syndrome of giant gastric lipomas, report 2 new illustrative cases. METHODS: Literature systematically reviewed using PubMed for publications since 1980 with following medical subject heading/keywords: ("giant lipoma") AND ("gastric") OR [("lipoma") and ("gastric") and ("bleeding")]. Two authors independently reviewed literature, and decided by consensus which articles to incorporate. Computerized review of pathology/endoscopy records at William Beaumont Hospitals, Royal Oak and Troy, Michigan, January 2005-December 2015, revealed 2 giant gastric lipomas among 117110 consecutive esophagogastroduodenoscopies (EGDs), which were thoroughly reviewed, including re-review of original endoscopic photographs, radiologic images, and pathologic slides...
August 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28839894/polypectomy-and-advanced-endoscopic-resection
#10
REVIEW
Kesavan Kandiah, Sharmila Subramaniam, Pradeep Bhandari
Most colorectal cancers evolve from colorectal adenomatous polyps in a pathway known as the adenoma to carcinoma sequence. Early detection and removal of colorectal adenomas can prevent the development of colorectal cancer. The vast majority of these polyps can be resected endoscopically. Advances in endoscopic resection techniques have led to expanded indications for endoscopic polypectomy, whereby giant polyps, scarred lesions and early cancers may be cured. We will outline conventional endoscopic mucosal resection techniques as well as more complex resection methods such as endoscopic submucosal dissection, full thickness resection and the use of combined endoscopic and laparoscopic assisted approaches to resection...
April 2017: Frontline Gastroenterology
https://www.readbyqxmd.com/read/28831602/plaque-accumulation-on-titanium-disks-with-different-surface-treatments-an-in-vivo-investigation
#11
Enrico Conserva, Luigi Generali, Alberto Bandieri, Francesco Cavani, Francesco Borghi, Ugo Consolo
Implants with rough surfaces are today widely used. It has been speculated that rough surfaces (Ra > 0.2 μm) provide a better "substrate" for retention and accumulation of plaque in terms of area, thickness and colony-forming unit that can eventually lead to peri mucositis and/or peri-implantitis. The aim of this investigation was to evaluate in vivo the plaque accumulation after 48 h on three implant surfaces with different treatments. For this investigation, we used 21 sterilized titanium disks, with a diameter of 8mm and a thickness of 3 mm, provided by the manufacturer: 7 with machined surface, as smooth control, 7 with HA grit sandblasted RBM surface and 7 with Ca(++) incorporated in titanium Xpeed surface...
August 22, 2017: Odontology
https://www.readbyqxmd.com/read/28830943/capsule-type-and-amount-affect-shedding-and-transmission-of-streptococcus-pneumoniae
#12
M Ammar Zafar, Shigeto Hamaguchi, Tonia Zangari, Michael Cammer, Jeffrey N Weiser
The capsular polysaccharide (CPS) of Streptococcus pneumoniae is characterized by its diversity, as it has over 95 known serotypes, and the variation in its thickness as it surrounds an organism. While within-host effects of CPS have been studied in detail, there is no information about its contribution to host-to-host transmission. In this study, we used an infant mouse model of intralitter transmission, together with isogenic capsule switch and cps promoter switch constructs, to explore the effects of CPS type and amount...
August 22, 2017: MBio
https://www.readbyqxmd.com/read/28819915/suppression-of-methionine-induced-colon-injury-of-young-rats-by-cysteine-and-n-acetyl-l-cysteine
#13
Marija Stojanović, Ljiljana Šćepanović, Dušan Todorović, Dušan Mitrović, Vuk Šćepanović, Radomir Šćepanović, Slobodan Ilić, Teja Šćepanović, Milica Labudović Borović, Živana Milićević, Vesna Dragutinović, Sunčica Borozan, Ivana Lalić, Sanja Despotović, Dragan Djuric
Changes in the methionine metabolism can cause a state called hyperhomocysteinemia, inducing oxidative stress in the gut. The production of free radicals is important in the colon damage caused by methionine. This study aimed at evaluating the effect of the use of L-cysteine and N-acetyl-L-cysteine on the colon morphometry of young rats treated with methionine. A total number of 32 male rats were distributed in a randomized experimental design in 4 groups: control group treated with saline; methionine group; cysteine + methionine group, and N-acetyl-L-cysteine + methionine group...
August 17, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28817406/idiopathic-myointimal-hyperplasia-of-mesenteric-veins-an-uncommon-cause-of-ischemic-colitis-with-distinct-mucosal-features
#14
Rhonda K Yantiss, Isabelle Cui, Nicole C Panarelli, Jose Jessurun
Idiopathic myointimal hyperplasia of mesenteric veins causes chronic ischemic mucosal injury with segmental strictures that mimic inflammatory bowel disease and nonocclusive ischemic colitis. It is characterized by myointimal proliferative changes that narrow the lumina of veins combined with ischemic injury and ulcers. Most cases reported to date have been diagnosed following surgical resection. The aim of this study was to determine whether mucosal changes of idiopathic myointimal hyperplasia of mesenteric veins are sufficiently sensitive and specific to allow its recognition in biopsy material...
August 15, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28812000/diagnostic-imaging-features-of-necrotizing-enterocolitis-a-narrative-review
#15
REVIEW
Francesco Esposito, Rosanna Mamone, Marco Di Serafino, Carmela Mercogliano, Valerio Vitale, Gianfranco Vallone, Patrizia Oresta
Necrotizing enterocolitis (NEC) is an inflammatory process, characterized by intestinal necrosis of variable extension, leading to perforation, generalized peritonitis and death. The classical pathogenetic theory focuses on mucosal damage related to a stress induced intestinal ischemia leading to mucosal injury and bacterial colonization of the wall. A more recent hypothesis emphasizes the role of immaturity of gastrointestinal and immune system, particularly of the premature, responsible of bowel wall vulnerability and suffering...
June 2017: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28811117/bilayered-buccal-films-as-child-appropriate-dosage-form-for-systemic-administration-of-propranolol
#16
Angela Abruzzo, Fiore Pasquale Nicoletta, Francesco Dalena, Teresa Cerchiara, Barbara Luppi, Federica Bigucci
Buccal mucosa has emerged as an attractive site for systemic administration of drug in paediatric patients. This route is simple and non-invasive, even if the saliva wash-out effect and the relative permeability of the mucosa can reduce drug absorption. Mucoadhesive polymers represent a common employed strategy to increase the contact time of the formulation at the application site and to improve drug absorption. Among the different mucoadhesive dosage forms, buccal films are particularly addressed for paediatric population since they are thin, adaptable to the mucosal surface and able to offer an exact and flexible dose...
August 12, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28770123/prevention-of-histological-changes-after-colonic-diversion-in-rats-an-experimental-study
#17
Pathak M, Srinivas M, Shariff A
AIM: To determine the beneficial effects of Glutamine, Psyllium, Short Chain Fatty Acids (SCFA), and Maharishi Amrit Kalash (MAK), in preventing the histological changes after diversion colostomy. MATERIAL AND METHODS: After ethical clearance, male wistar rats (n=40) underwent diversion colostomy. Rats were divided into five groups of 8 rats each. Each group was given, after diversion colostomy, per rectally, one of the five agents being tested as an enema (3 ml/kg/day)...
April 2017: Journal of Neonatal Surgery
https://www.readbyqxmd.com/read/28765691/fibrinogen-deficiency-suppresses-the-development-of-early-and-delayed-radiation-enteropathy
#18
Junru Wang, Rupak Pathak, Sarita Garg, Martin Hauer-Jensen
AIM: To determine the mechanistic role of fibrinogen, a key regulator of inflammation and fibrosis, in early and delayed radiation enteropathy. METHODS: Fibrinogen wild-type (Fib(+/+)), fibrinogen heterozygous (Fib(+/-)), and fibrinogen knockout (Fib(-/-)) mice were exposed to localized intestinal irradiation and assessed for early and delayed structural changes in the intestinal tissue. A 5-cm segment of ileum of mice was exteriorized and exposed to 18.5 Gy of x-irradiation...
July 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28761979/probiotics-and-probiotic-metabolic-product-improved-intestinal-function-and-ameliorated-lps-induced-injury-in-rats
#19
Bo Deng, Jie Wu, Xiaohui Li, Xiaoming Men, Ziwei Xu
In the present study, we sought to determine the effects of Bacillus subtilis (BAS) and Bacillus licheniformis (BAL) in rats after lipopolysaccharide (LPS)-induced acute intestinal inflammation. We also determined whether the B. subtilis metabolic product (BASM) is as effective as the live-cell probiotic. 60 male SD rats were randomly assigned to five groups and administered a diet containing 0.05% B. licheniformis (BAL group), 0.05% B. subtilis (BAS group), 0.5% B. subtilis metabolic product (BASM group), or a basic diet (PC group and NC group) for 40 days...
July 31, 2017: Current Microbiology
https://www.readbyqxmd.com/read/28738080/effects-of-exogenous-glucagon-like-peptide-2-and-distal-bowel-resection-on-intestinal-and-systemic-adaptive-responses-in-rats
#20
Sarah W Lai, Elaine de Heuvel, Laurie E Wallace, Bolette Hartmann, Jens J Holst, Mary E Brindle, Prasanth K Chelikani, David L Sigalet
OBJECTIVE: To determine the effects of exogenous glucagon-like peptide-2 (GLP-2), with or without massive distal bowel resection, on adaptation of jejunal mucosa, enteric neurons, gut hormones and tissue reserves in rats. BACKGROUND: GLP-2 is a gut hormone known to be trophic for small bowel mucosa, and to mimic intestinal adaptation in short bowel syndrome (SBS). However, the effects of exogenous GLP-2 and SBS on enteric neurons are unclear. METHODS: Sprague Dawley rats were randomized to four treatments: Transected Bowel (TB) (n = 8), TB + GLP-2 (2...
2017: PloS One
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