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https://www.readbyqxmd.com/read/29235691/rna-interference-mediated-functional-characterization-of-aquaporin-genes-in-tribolium-castaneum
#1
X-X Yao, Q-W Meng, G-Q Li
An obvious challenge faced by most terrestrial insects is maintaining water homeostasis in an arid environment. Current research suggests aquaporins may be evolved to meet the challenge. However, up to now, this suggestion has not been verified in any insect that feeds upon solid food with mandibulate mouthparts. In the present paper, nine putative aquaporin genes [Tribolium castaneum big brain, T. castaneum Drosophila integral protein (TcDrip), T. castaneum Pyrocoelia rufa integral protein (TcPrip), T. castaneum aquaporin 12-like, T...
December 13, 2017: Insect Molecular Biology
https://www.readbyqxmd.com/read/29232767/a-comparative-immunohistochemical-study-of-anal-canal-epithelium-in-humans-and-swine-focusing-on-the-anal-transitional-zone-epithelium-and-the-anal-glands
#2
Futoshi Muranaka, Tomoyuki Nakajima, Mai Iwaya, Keiko Ishii, Kayoko Higuchi, Naoko Ogiwara, Shinichi Miyagawa, Hiroyoshi Ota
To better understand the cellular origins and differentiation of anal canal epithelial neoplasms, the immunohistochemical profiles of the anal canal epithelium in humans and swine were evaluated. Formalin-fixed tissue sections were immunostained for mucin (MUC: MUC2, MUC5AC, MUC5B), desmoglein 3 (DGS3), p63, CDX2, SOX2, and α-smooth muscle actin (α-SMA). The anal transitional zone (ATZ) epithelium covered the anal sinus and consisted of a stratified epithelium with mucous cells interspersed within the surface lining...
December 12, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29224507/three-anastomotic-techniques-following-laparoscopic-rectal-cancer-resection-our-experience-in-155-patients
#3
Mahtab Zanguie, Abbas Abdollahi, Roham Salek, Ali Jangjoo, Mehdi Jabbari Nooghabi, Hosein Shabahang, Hamed Golmohammadzadeh
PURPOSE: This study aimed to assess the impact of 3 anastomotic techniques after laparoscopic rectal cancer resection. METHODS: In a cross-sectional study, the data of 155 patients who underwent surgery for rectal cancer were retrieved. An anastomosis was created between the left colon and anal canal with 3 different methods: coloanal anastomosis with protective ileostomy (group A), coloanal anastomosis without ostomy (group B), and delayed coloanal anastomosis (group C)...
December 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/29208455/high-prevalence-and-incidence-of-hpv-related-anal-cancer-precursor-lesions-in-hiv-positive-women-in-the-late-haart-era
#4
Carmen Hidalgo-Tenorio, Samantha E de Jesus, Javier Esquivias, Juan Pasquau
INTRODUCTION: Anal cancer is one of the most common non-AIDS defining malignancies, especially in men who have sex with men and women living with HIV (WLHIV). OBJECTIVES: To evaluate the prevalence and incidence of precursor lesions (high-grade squamous intraepithelial lesions [HSIL]) and anal cancer in our cohort of women and to compare them to cervical lesions; to calculate the percentage of patients that acquire and clear oncogenic genotypes (HR-HPV) in the anal canal; and to determine predictive factors for anal HPV infection...
December 2, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/29165757/clinical-effects-of-ascending-colon-patching-ileorectal-heart-shaped-anastomosis-on-total-colonic-aganglionosis
#5
S-X Li, H-W Zhang, H Cao, H-X Zou, Y-Y Yin, F Sui, X Zhang
OBJECTIVE: We studied the clinical effects of ascending colon patching ileorectal heart-shaped anastomosis in treating total colonic aganglionosis. PATIENTS AND METHODS: From June 2006 to June 2013, 15 children with severe abdominal distension, low small intestine obstruction and intestinal perforation in the neonatal period, were enrolled in this study. In phase I, patients received emergency terminal ileum stoma plus multi-site colonic biopsy and 6 to 12 months later, ascending colon patching ileorectal heart-shaped anastomosis was conducted in phase II...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29134349/the-impact-of-mri-sequence-on-tumour-staging-and-gross-tumour-volume-delineation-in-squamous-cell-carcinoma-of-the-anal-canal
#6
Davide Prezzi, Ramin Mandegaran, Sofia Gourtsoyianni, Katarzyna Owczarczyk, Andrew Gaya, Robert Glynne-Jones, Vicky Goh
OBJECTIVES: To compare maximum tumour diameter (MTD) and gross tumour volume (GTV) measurements between T2-weighted (T2-w) and diffusion-weighted (DWI) MRI in squamous cell carcinoma of the anal canal (SCCA) and assess sequence impact on tumour (T) staging. Second, to evaluate interobserver agreement and reader delineation confidence. METHODS: The staging MRI scans of 45 SCCA patients (25 females) were assessed retrospectively by two independent radiologists (0 and 5 years' experience of anal cancer MRI)...
November 13, 2017: European Radiology
https://www.readbyqxmd.com/read/29112567/a-pilot-study-of-the-prevalence-of-anal-human-papillomavirus-and-dysplasia-in-a-cohort-of-patients-with-ibd
#7
Ross D Cranston, Miguel Regueiro, Jana Hashash, Jonathan R Baker, Nicola Richardson-Harman, Laura Janocko, Ian McGowan
BACKGROUND: Defective cell-mediated immunity increases the risk of human papillomavirus-associated anal dysplasia and cancer. There is limited information on anal canal disease in patients with IBD. OBJECTIVE: The purpose of this study was to assess anal/vaginal human papillomavirus and anal dysplasia prevalence in patients with IBD. DESIGN: Patients had an anal examination before routine colonoscopy. SETTINGS: The study was conducted at a tertiary IBD referral center...
December 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/29109347/-a-case-of-long-term-survival-in-stage-iv-squamous-cell-carcinoma-of-the-anal-canal-with-multidisciplinary-treatment
#8
Sayaka Ogawa, Hirofumi Fujishiro, Aya Fujiwara, Kousuke Tsukano, Satoshi Kotani, Satoshi Yamanouchi, Ryusaku Kusunoki, Masahito Aimi, Youichi Miyaoka, Naruaki Kohge, Hideyuki Onuma
A 60-year-old female presented to our hospital with anal pain. Colonoscopy (CS) revealed a tumor in the anal canal, which was diagnosed as squamous cell carcinoma by biopsy. Computed tomography (CT) showed multiple liver metastases. From these findings, we diagnosed the anal tumor as stage IV squamous cell carcinoma of the anal canal. Although CS and CT indicated disappearance of the primary tumor and liver metastases following chemoradiotherapy, brain metastasis developed during the disease course and was treated with radiotherapy and surgical resection...
2017: Nihon Shokakibyo Gakkai Zasshi, the Japanese Journal of Gastro-enterology
https://www.readbyqxmd.com/read/29107432/-reconstruction-of-abdo-perineal-resection-by-taylor-flap-about-68-patients
#9
D Boccara, K SerroR, J Lefevre, M Mimoun, M Chaouat
PURPOSES: Healing after abdomino-perineal resection is often difficult, especially in patients who have undergone radiation therapy. Vaginal reconstruction is also an important issue for the women who undergo this surgery. We describe and analyze here our series of perineal reconstructions with modified Taylor flaps. Between 2010 and 2016, 68 patients (52 women, 16 men) with cancer of the anal canal (53), adenocarcinoma of the lower rectum (9), or other malignant neoplasms of the perineum underwent reconstruction with a rectus abdominis myocutaneous (RAM) flap with an inferior pedicle and an oblique skin paddle...
October 26, 2017: Annales de Chirurgie Plastique et Esthétique
https://www.readbyqxmd.com/read/29089827/cancer-of-the-anal-canal-diagnosis-staging-and-follow-up-with-mri
#10
REVIEW
Carole Durot, Anthony Dohan, Mourad Boudiaf, Vincent Servois, Philippe Soyer, Christine Hoeffel
Although a rare disease, anal cancer is increasingly being diagnosed in patients with risk factors, mainly anal infection with the human papilloma virus. Magnetic resonance imaging (MRI) with external phased-array coils is recommended as the imaging modality of choice to grade anal cancers and to evaluate the response assessment after chemoradiotherapy, with a high contrast and good anatomic resolution of the anal canal. MRI provides a performant evaluation of size, extent and signal characteristics of the anal tumor before and after treatment, as well as lymph node involvement and extension to the adjacent organs...
November 2017: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
https://www.readbyqxmd.com/read/29063590/the-prevalence-and-concordance-of-human-papillomavirus-infection-in-different-anogenital-sites-among-men-and-women-in-liuzhou-china-a-population-based-study
#11
Feixue Wei, Mingqiang Li, Xin Wu, Kai Yin, Jian Lan, Wei Sheng, Meng Guo, Shoujie Huang, Ying Wang, Yanping Li, Rongcheng Li, Yingying Su, Ting Wu, Jun Zhang, Ningshao Xia
Human papillomavirus (HPV) infection is the pathogenesis of anogenital cancers and genital warts in both men and women, whereas there is a scarcity of large studies focused on HPV prevalence in different anogenital sites of both sexes in the same population. From May to July 2014, 2309 men and 2378 women aged 18-55 were enrolled from a community in Liuzhou, China. Penis/glans penis/coronary sulcus (PGC) and perianal/anal canal (PA) specimens of men, and vaginal (VA), vulvar (VU) and PA specimens of women, were collected and genotyped for HPV...
October 24, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29049547/management-of-stage-i-squamous-cell-carcinoma-of-the-anal-canal
#12
Christy Y Chai, Hop Tran Cao, Samir Awad, Nader N Massarweh
Importance: The incidence of squamous cell carcinoma of the anal canal (SCCAC) is increasing. Although standard management of SCCAC includes the use of concurrent chemotherapy and radiotherapy (chemoradiotherapy), data are lacking on potentially less morbid, alternative management strategies, such as local excision, among patients with node-negative T1 disease. Objectives: To examine the use of local excision among patients with T1 SCCAC and to compare overall survival relative to those who received standard treatment with chemoradiotherapy...
October 18, 2017: JAMA Surgery
https://www.readbyqxmd.com/read/29034437/management-of-early-anal-cancer-need-for-guidelines-and-standardisation
#13
Michael P Jones, Susan Carroll, Jarad Martin, Richard Hillman, Andrew Grulich, Dianne O'Connell, Christopher Young, Isobel Mary Poynten
PURPOSE: The optimal management of early squamous cell carcinoma of the anal canal (AC) is yet to be determined. This study investigated current practice in the management of early AC. METHODS: A patterns of care survey was completed by Australian surgeons and radiation oncologists. Specific topics addressed were as follows: geographical location of practice, staging of disease, treatment approaches to T1N0 tumours and grade 3 anal intra-epithelial neoplasia (AIN3) lesions, radiotherapy planning, toxicities, follow-up and clinical trial involvement...
December 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28994873/anal-imperforation-in-adults-diagnostic-difficulties-and-therapeutic-options
#14
Houcine Maghrebi, Rachid Ksantini, Amin Makni, Helmi Slama, Meriem Jrad, Amine Daghfous, Wael Rebai, Fadhel Fteriche, Faouzi Chebbi, Mohamed Jouini, Kacem Montassar, Zoubeir Ben Safta
Anorectal malformations are congenital anomalies ranging from simple perineal fistulas to complex malformations. They are usually treated inchildhood, and exceptionally in adult. We herein report the case of a 22 years aged patient and relate the diagnosis difficulties and therapeuticoptions. She consulted for anal imperforation discovered since birth. Initially, His parents refused the surgical management. It was an analimperforation with a vestibular fistula. The patient was operated by a low approach. She had a disconnection of the recto-vestibular fistula,dissection of the anal canal and a perineal posterior transposition...
November 2016: La Tunisie Médicale
https://www.readbyqxmd.com/read/28986667/prolonged-release-oxycodone-naloxone-improves-anal-sphincter-relaxation-compared-to-oxycodone-plus-macrogol-3350
#15
RANDOMIZED CONTROLLED TRIAL
Jakob Lykke Poulsen, Christina Brock, Debbie Grønlund, Donghua Liao, Hans Gregersen, Klaus Krogh, Asbjørn Mohr Drewes
BACKGROUND: Opioid analgesics inhibit anal sphincter function and contribute to opioid-induced bowel dysfunction (OIBD). However, it is unknown whether the inhibition can be reduced by opioid antagonism with prolonged-release (PR) naloxone and how this compares to laxative treatment. AIMS: To compare the effects of combined PR oxycodone/naloxone or PR oxycodone plus macrogol 3350 on anal sphincter function and gastrointestinal symptoms. METHODS: A randomized, double-blind, crossover trial was conducted in 20 healthy men...
November 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28982899/transanal-assisted-resection-with-closure-of-anal-canal-for-lower-rectal-diseases
#16
Hidejiro Kawahara, Tadashi Akiba, Katsuhiko Yanaga
BACKGROUND/AIM: Abdominoperineal resection (APR) has been performed for lower rectal cancer, anal cancer and inflammatory diseases, but is associated with postoperative complications such as inflammation of pelvic dead space or perineal wound infection. We are performing a novel procedure (transanal assisted resection with closure of anal canal, TARC) that resects the intestine by using transanal assist and close the anal canal for patients who do not require resection of the anus and anal canal...
October 2017: Anticancer Research
https://www.readbyqxmd.com/read/28978604/oxaliplatin-induced-posterior-reversible-encephalopathy-syndrome-pres
#17
Taimoor Khalid Janjua, Muhammad Hassan, Hira Khan Afridi, Naila Anjum Zahid
Posterior reversible encephalopathy syndrome (PRES), first introduced in 1996, is a neurotoxic state characterised by seizures, headache, vision change, paresis, nausea and altered mental status. Risk factors include hypertension, eclampsia/pre-eclampsia, infection/sepsis and cancer chemotherapy. Although exposure to toxic agents is a common occurrence in patients who develop PRES, oxaliplatin has rarely been associated with it, with only 10 cases reported worldwide. We present the case of an oxaliplatin-induced PRES in a 23-year-old male patient who was started on oxaliplatin/capecitabine as adjuvant chemotherapy for anal canal adenocarcinoma...
October 4, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28976027/underwater-endoscopic-mucosal-resection-of-an-intramucosal-carcinoma-located-from-the-lower-rectum-to-the-anal-canal
#18
LETTER
Kenta Hamada, Noriya Uedo, Hitoshi Tanishita
No abstract text is available yet for this article.
October 4, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28972796/pet-imaging-in-anal-canal-cancer-a-systematic-review-and-meta-analysis
#19
Aamer Mahmud, Raymond Poon, Derek Jonker
OBJECTIVE: The aim of this study was to systematically review the literature to synthesize and summarize the evidence surrounding the clinical utility of positron emission tomography (PET) imaging in patients with anal canal cancer. METHODS: The literature was searched using MEDLINE, EMBASE and Cochrane Database of Systematic Reviews databases. Studies comparing PET or PET/CT with conventional imaging in the staging, response evaluation and follow-up of anal canal cancer were deemed eligible for inclusion...
December 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28959428/coincidence-or-not-a-rare-case-of-rectal-leiomyosarcoma-amidst-incidental-findings-of-anal-squamous-cell-carcinoma-case-presentation-and-literature-review
#20
Gosta Iwasiuk, Jason Nealy
Leiomyosarcoma accounts for only a small percentage of colorectal malignancies and remains a difficult disease to diagnose and treat. Here, we describe a case of leiomyosarcoma in a middle-age female first identified on colonoscopy. The cancer had invaded the posterior vaginal wall necessitating an abdominoperineal resection with partial vaginectomy and pelvic floor reconstruction with neovagina creation. Final pathologic analysis revealed invasion into the posterior vaginal wall without direct involvement of the vaginal squamous mucosa...
September 2017: Journal of Surgical Case Reports
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