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https://www.readbyqxmd.com/read/28298902/global-distribution-and-evolutionary-history-of-enterovirus-d68-with-emphasis-on-the-2014-outbreak-in-ontario-canada
#1
Alireza Eshaghi, Venkata R Duvvuri, Sandra Isabel, Philip Banh, Aimin Li, Adriana Peci, Samir N Patel, Jonathan B Gubbay
Despite its first appearance in 1962, human enterovirus D68 (EV-D68) has been recognized as an emerging respiratory pathogen in the last decade when it caused outbreaks and clusters in several countries including Japan, the Philippines, and the Netherlands. The most recent and largest outbreak of EV-D68 associated with severe respiratory illness took place in North America between August 2014 and January 2015. Between September 1 and October 31 2014, EV-D68 infection was laboratory confirmed among 153/907 (16...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28291261/modeling-anorexia-nervosa-transcriptional-insights-from-human-ipsc-derived-neurons
#2
P D Negraes, F R Cugola, R H Herai, C A Trujillo, A S Cristino, T Chailangkarn, A R Muotri, V Duvvuri
Anorexia nervosa (AN) is a complex and multifactorial disorder occurring predominantly in women. Despite having the highest mortality among psychiatric conditions, it still lacks robust and effective treatment. Disorders such as AN are most likely syndromes with multiple genetic contributions, however, genome-wide studies have been underpowered to reveal associations with this uncommon illness. Here, we generated induced pluripotent stem cells (iPSCs) from adolescent females with AN and unaffected controls...
March 14, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28275308/success-of-photodynamic-therapy-in-palliating-patients-with-nonresectable-cholangiocarcinoma-a-systematic-review-and-meta-analysis
#3
Harsha Moole, Harsha Tathireddy, Sirish Dharmapuri, Vishnu Moole, Raghuveer Boddireddy, Pratyusha Yedama, Sowmya Dharmapuri, Achuta Uppu, Naveen Bondalapati, Abhiram Duvvuri
AIM: To perform a systematic review and meta-analysis on clinical outcomes of photodynamic therapy (PDT) in non-resectable cholangiocarcinoma. METHODS: Included studies compared outcomes with photodynamic therapy and biliary stenting (PDT group) vs biliary stenting only (BS group) in palliation of non-resectable cholangiocarcinoma. Articles were searched in MEDLINE, PubMed, and EMBASE. Pooled proportions were calculated using fixed and random effects model. Heterogeneity among studies was assessed using the I(2) statistic...
February 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28249654/transoral-robotic-surgery-for-management-of-cervical-unknown-primary-squamous-cell-carcinoma-updates-on-efficacy-surgical-technique-and-margin-status
#4
Mathew Geltzeiler, Sean Doerfler, Meghan Turner, William Greer Albergotti, Mark Kubik, Seungwon Kim, Robert Ferris, Umamaheswar Duvvuri
IMPORTANCE: Management of cervical unknown primary squamous cell carcinoma (CUP) has evolved with the introduction of transoral robotic surgery (TORS). OBJECTIVES: 1. To describe the efficacy of TORS lingual and palatine tonsillectomy in identifying the primary site of malignancy. 2. To explore how the extent of surgery affects diagnostic yield. 3. To report margin status of TORS resections. DESIGN, SETTING AND PARTICIPANTS: A retrospective, single-center cohort study utilizing a prospectively collected database of CUP patients in a high-volume tertiary referral center...
March 2017: Oral Oncology
https://www.readbyqxmd.com/read/28196200/assessment-of-surgical-learning-curves-in-transoral-robotic-surgery-for-squamous-cell-carcinoma-of-the-oropharynx
#5
William G Albergotti, William E Gooding, Mark W Kubik, Mathew Geltzeiler, Seungwon Kim, Umamaheswar Duvvuri, Robert L Ferris
Importance: Transoral robotic surgery (TORS) is increasingly employed as a treatment option for squamous cell carcinoma of the oropharynx (OPSCC). Measures of surgical learning curves are needed particularly as clinical trials using this technology continue to evolve. Objective: To assess learning curves for the oncologic TORS surgeon and to identify the number of cases needed to identify the learning phase. Design, Setting, and Participants: A retrospective review of all patients who underwent TORS for OPSCC at the University of Pittsburgh Medical Center between March 2010 and March 2016...
February 9, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28177558/tmem16a-ano1-suppression-improves-response-to-antibody-mediated-targeted-therapy-of-egfr-and-her2-erbb2
#6
Sucheta Kulkarni, Anke Bill, Neal R Godse, Nayel I Khan, Jason I Kass, Kevin Steehler, Carolyn Kemp, Kara Davis, Carol A Bertrand, Avani R Vyas, Douglas E Holt, Jennifer R Grandis, L Alex Gaither, Umamaheswar Duvvuri
TMEM16A, a Ca(2+) -activated Cl(-) channel, contributes to tumor growth in breast cancer and head and neck squamous cell carcinoma (HNSCC). Here, we investigated whether TMEM16A influences the response to EGFR/HER family-targeting biological therapies. Inhibition of TMEM16A Cl(-) channel activity in breast cancer cells with HER2 amplification induced a loss of viability. Cells resistant to trastuzumab, a monoclonal antibody targeting HER2, showed an increase in TMEM16A expression and heightened sensitivity to Cl(-) channel inhibition...
February 8, 2017: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/28167576/phase-relations-in-a-forced-turbulent-boundary-layer-implications-for-modelling-of-high-reynolds-number-wall-turbulence
#7
Subrahmanyam Duvvuri, Beverley McKeon
Phase relations between specific scales in a turbulent boundary layer are studied here by highlighting the associated nonlinear scale interactions in the flow. This is achieved through an experimental technique that allows for targeted forcing of the flow through the use of a dynamic wall perturbation. Two distinct large-scale modes with well-defined spatial and temporal wavenumbers were simultaneously forced in the boundary layer, and the resulting nonlinear response from their direct interactions was isolated from the turbulence signal for the study...
March 13, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28122201/in%C3%A2-vivo-measurement-of-pde10a-enzyme-occupancy-by-positron-emission-tomography-pet-following-single-oral-dose-administration-of-pf-02545920-in-healthy-male-subjects
#8
Marielle Delnomdedieu, Anton Forsberg, Adam Ogden, Patrik Fazio, Ching-Ray Yu, Per Stenkrona, Sridhar Duvvuri, William David, Nabil Al-Tawil, Ottavio V Vitolo, Nahid Amini, Sangram Nag, Christer Halldin, Andrea Varrone
Phosphodiesterase 10A (PDE10A) is an enzyme highly enriched in the striatal medium spiny neurons. It is involved in the regulation of cytoplasmic levels of cAMP and cGMP and signaling within the basal ganglia. This study with PDE10A radioligand [(18)F]MNI-659 was designed to measure the enzyme occupancy of PF-02545920 in 8 healthy male volunteers (48 ± 4 years) after a single oral dose (10 mg or 20 mg) and to evaluate safety and tolerability. Arterial blood sampling was performed to obtain a metabolite-corrected plasma input function for the quantification of [(18)F]MNI-659 binding to PDE10A...
January 22, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28004263/transoral-robotic-surgery-for-the-pediatric-head-and-neck-surgeries
#9
Evren Erkul, Umamaheswar Duvvuri, Deepak Mehta, Utku Aydil
Pediatric robotic surgery is a relatively new technology that has been shown to be safe and feasible for a number of pediatric procedures. Our literature analysis was performed using Pubmed database between January 2005 and December 2015, using key words: "robotic," "robotic surgery," "TORS," "pediatric," "children," "head and neck," and "da Vinci". We selected only publications in English. Eight published reports met the selection criteria. We totally found 41 patients, and the age range was between 2 months and 19 years...
December 21, 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27986750/human-papillomavirus-regulates-her3-expression-in-head-and-neck-cancer-implications-for-targeted-her3-therapy-in-hpv-patients
#10
Toni M Brand, Stefan Hartmann, Neil E Bhola, Noah D Peyser, Hua Li, Yan Zeng, Erin Isaacson Wechsler, Max V Ranall, Sourav Bandyopadhyay, Umamaheswar Duvvuri, Theresa M LaVallee, Richard C K Jordan, Daniel E Johnson, Jennifer R Grandis
PURPOSE: Human papillomavirus (HPV) 16 plays an etiologic role in a growing subset of HNSCCs, where viral expression of the E6 and E7 oncoproteins are necessary for tumor growth and maintenance. Although patients with HPV(+) tumors have a more favorable prognosis, there are currently no HPV-selective therapies. Recent studies identified differential receptor tyrosine kinase (RTK) profiles in HPV(+) vs. HPV(-) tumors. One such RTK, HER3, is overexpressed and interacts with phosphoinositide 3-kinase (PI3K) in HPV(+) tumors...
December 16, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27850120/480-comparison-of-treatment-of-ketoacidosis-associated-with-sglt-2-inhibitors-and-usual-dka
#11
Padmaraj Duvvuri, Jeffery Spray, Marcia Brackbill, Abhijit Duggal
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27832205/gallstones-a-worldwide-multifaceted-disease-and-its-correlations-with-gallbladder-carcinoma
#12
Raj Kumar Sharma, Kanchan Sonkar, Neeraj Sinha, Pradeep Rebala, Ahmad Ebrah Albani, Anu Behari, Duvvuri Nageshwar Reddy, Alvina Farooqui, Vinay Kumar Kapoor
BACKGROUND: Gallstones (GS) associated diseases are among the most recurrent and frequent diseases delineated in India and United Arab Emirates. Several reports suggest that the association of GS with gallbladder cancer (GBC) is very high in Northern part of India; however, its occurrence in UAE and Southern part of India is notably low. Therefore, in the present study, we aimed to perform compositional analysis of GS in three different geographical areas by Solid State Nuclear Magnetic Resonance and Fourier Transformed Infrared spectroscopy...
2016: PloS One
https://www.readbyqxmd.com/read/27818599/progression-from-low-grade-dysplasia-to-malignancy-in-patients-with-barrett-s-esophagus-diagnosed-by-two-or-more-pathologists
#13
Harsha Moole, Jaymon Patel, Zohair Ahmed, Abhiram Duvvuri, Sreekar Vennelaganti, Vishnu Moole, Sowmya Dharmapuri, Raghuveer Boddireddy, Pratyusha Yedama, Naveen Bondalapati, Achuta Uppu, Prashanth Vennelaganti, Srinivas Puli
AIM: To evaluate annual incidence of low grade dysplasia (LGD) progression to high grade dysplasia (HGD) and/or esophageal adenocarcinoma (EAC) when diagnosis was made by two or more expert pathologists. METHODS: Studies evaluating the progression of LGD to HGD or EAC were included. The diagnosis of LGD must be made by consensus of two or more expert gastrointestinal pathologists. Articles were searched in Medline, Pubmed, and Embase. Pooled proportions were calculated using fixed and random effects model...
October 21, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27733374/phase-ii-trial-of-post-operative-radiotherapy-with-concurrent-cisplatin-plus-panitumumab-in-patients-with-high-risk-resected-head-and-neck-cancer
#14
R L Ferris, J L Geiger, S Trivedi, N C Schmitt, D E Heron, J T Johnson, S Kim, U Duvvuri, D A Clump, J E Bauman, J P Ohr, W E Gooding, A Argiris
BACKGROUND: Treatment intensification for resected, high-risk, head and neck squamous cell carcinoma (HNSCC) is an area of active investigation with novel adjuvant regimens under study. In this trial, the epidermal growth-factor receptor (EGFR) pathway was targeted using the IgG2 monoclonal antibody panitumumab in combination with cisplatin chemoradiotherapy (CRT) in high-risk, resected HNSCC. PATIENTS AND METHODS: Eligible patients included resected pathologic stage III or IVA squamous cell carcinoma of the oral cavity, larynx, hypopharynx, or human-papillomavirus (HPV)-negative oropharynx, without gross residual tumor, featuring high-risk factors (margins <1 mm, extracapsular extension, perineural or angiolymphatic invasion, or ≥2 positive lymph nodes)...
December 2016: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/27688103/oncologic-outcomes-and-patient-reported-quality-of-life-in-patients-with-oropharyngeal-squamous-cell-carcinoma-treated-with-definitive-transoral-robotic-surgery-versus-definitive-chemoradiation
#15
D C Ling, B V Chapman, J Kim, G W Choby, P Kabolizadeh, D A Clump, R L Ferris, S Kim, S Beriwal, D E Heron, U Duvvuri
OBJECTIVE: It has been postulated that treatment outcomes are similar between transoral robotic surgery (TORS) and definitive chemoradiation (CRT) for oropharyngeal squamous cell carcinomas (OPSCC). We compared oncologic and quality of life (QOL) outcomes between definitive CRT and definitive TORS. MATERIALS AND METHODS: An observational comparison study was performed on 92 patients treated with TORS±adjuvant therapy and 46 patients treated with definitive CRT between July 2005 and January 2016...
October 2016: Oral Oncology
https://www.readbyqxmd.com/read/27675987/risk-of-severe-toxicity-based-on-site-of-recurrence-in-patients-treated-with-stereotactic-body-radiation-therapy-for-recurrent-head-and-neck-cancer
#16
D C Ling, J Vargo, R L Ferris, J Ohr, D A Clump, W Y W Yau, U Duvvuri, S Kim, J T Johnson, J E Bauman, B F Branstetter, D E Heron
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/27648439/endoscopic-versus-percutaneous-biliary-drainage-in-palliation-of-advanced-malignant-hilar-obstruction-a-meta-analysis-and-systematic-review
#17
REVIEW
Harsha Moole, Sirish Dharmapuri, Abhiram Duvvuri, Sowmya Dharmapuri, Raghuveer Boddireddy, Vishnu Moole, Prathyusha Yedama, Naveen Bondalapati, Achuta Uppu, Charan Yerasi
Background. Palliation in advanced unresectable hilar malignancies can be achieved by endoscopic (EBD) or percutaneous transhepatic biliary drainage (PTBD). It is unclear if one approach is superior to the other in this group of patients. Aims. Compare clinical outcomes of EBD versus PTBD. Methods. (i) Study Selection Criterion. Studies using PTBD and EBD for palliation of advanced unresectable hilar malignancies. (ii) Data Collection and Extraction. Articles were searched in Medline, PubMed, and Ovid journals...
2016: Canadian Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/27585358/metabolic-variations-in-normal-and-fibrotic-human-laryngotracheal-derived-fibroblasts-a-warburg-like-effect
#18
Garret Ma, Idris Samad, Kevin Motz, Linda X Yin, Madhavi V Duvvuri, Dacheng Ding, Daryan R Namba, Jennifer H Elisseeff, Maureen R Horton, Alexander T Hillel
OBJECTIVES/HYPOTHESIS: Laryngotracheal stenosis (LTS) is a chronic fibrotic disease characterized by fibroblast proliferation, collagen deposition, and matrix remodeling in the lamina propria of the larynx and/or trachea. Current medical therapies are limited by a poor understanding of the effector cell's (fibroblasts) cellular biology and metabolism. The purpose of this study was to compare cellular proliferation, function, and metabolism between normal and LTS-derived fibroblasts in vitro...
March 2017: Laryngoscope
https://www.readbyqxmd.com/read/27531873/association-of-pretreatment-body-mass-index-and-survival-in-human-papillomavirus-positive-oropharyngeal-squamous-cell-carcinoma
#19
William G Albergotti, Kara S Davis, Shira Abberbock, Julie E Bauman, James Ohr, David A Clump, Dwight E Heron, Umamaheswar Duvvuri, Seungwon Kim, Jonas T Johnson, Robert L Ferris
BACKGROUND: Pretreatment body mass index (BMI) >25kg/m(2) is a positive prognostic factor in patients with head and neck cancer. Previous studies have not been adequately stratified by human papilloma virus (HPV) status or subsite. Our objective is to determine prognostic significance of pretreatment BMI on overall survival in HPV+ oropharyngeal squamous cell carcinoma (OPSCC). METHODS: This is a retrospective review of patients with HPV+ OPSCC treated between 8/1/2006 and 8/31/2014...
September 2016: Oral Oncology
https://www.readbyqxmd.com/read/27312369/a-description-of-the-anatomy-of-the-glossopharyngeal-nerve-as-encountered-in-transoral-surgery
#20
Chengyuan Wang, Summit Kundaria, Juan Fernandez-Miranda, Umamaheswar Duvvuri
OBJECTIVES/HYPOTHESIS: To illustrate detailed anatomy of the extracranial portion of the glossopharyngeal nerve in the parapharyngeal space as encountered during transoral surgery. STUDY DESIGN: Prospective cadaveric dissection. All dissections were performed transorally and confirmed with transcervical dissection. METHODS: Eight color-injected cadaveric heads (16 sides) were dissected to demonstrate the course and anatomy of the glossopharyngeal nerve...
September 2016: Laryngoscope
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