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Tal Hoffmann, Katrin Kistner, Richard W Carr, Mohammed A Nassar, Peter W Reeh, Christian Weidner
The upregulation of the tetrodotoxin-resistant voltage-gated sodium channel NaV1.9 has previously been associated with inflammatory hyperalgesia. Na1.9 knockout (KO) mice, however, did not seem insensitive in conventional tests of acute nociception. Using electrophysiological, neurochemical, and behavioral techniques, we now show NaV1.9-null mice exhibit impaired mechanical and thermal sensory capacities and reduced electrical excitability of nociceptors. In single-fiber recordings from isolated skin, the electrical threshold of NaV1...
September 15, 2016: Pain
Bakhta Aouey, Amira Mahjoubi Samet, Hamadi Fetoui, Monique S J Simmonds, Mohamed Bouaziz
ETHNOPHARMACOLOGICAL RELEVANCE: The leaves of Vitis vinifera is used in traditional medicine for diarrhea, hepatitis and stomachaches. The objective of this study was to investigate the anti-oxidant, anti-inflammatory, analgesic and antipyretic properties of the hydroalcoholic leaf extract of Vitis vinifera (EVV) on experimental models to provide scientific basis for its use. MATERIALS AND METHODS: The EVV was chemically characterized by LC-MS/MS analyses. The in vitro antioxidant activities of the EVV extract were measured using 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging assay and Ferric reducing antioxidant power assay (FRAP)...
October 22, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Mohamed Osman, Rajesh Paleti, Sabyasachee Mishra, Mihalis M Golias
Work zones are critical parts of the transportation infrastructure renewal process consisting of rehabilitation of roadways, maintenance, and utility work. Given the specific nature of a work zone (complex arrangements of traffic control devices and signs, narrow lanes, duration) a number of crashes occur with varying severities involving different vehicle sizes. In this paper we attempt to investigate the causal factors contributing to injury severity of large truck crashes in work zones. Considering the discrete nature of injury severity categories, a number of comparable econometric models were developed including multinomial logit (MNL), nested logit (NL), ordered logit (ORL), and generalized ordered logit (GORL) models...
October 22, 2016: Accident; Analysis and Prevention
Mohammed Al-Temimi, Charles Trujillo, John Agapian, Hanna Park, Ahmad Dehal, Samir Johna, Deron Tessier
Incidental appendectomy (IA) could potentially increase the risk of morbidity after abdominal procedures; however, such effect is not clearly established. The aim of our study is to test the association of IA with morbidity after abdominal procedures. We identified 743 (0.37%) IA among 199,233 abdominal procedures in the National Surgical Quality Improvement Program database (2005-2009). Cases with and without IA were matched on the index current procedural terminology code. Patient characteristics were compared using chi-squared test for categorical variables and Student t test for continuous variables...
October 2016: American Surgeon
Silin Sa, Mingxia Gu, James Chappell, Ning-Yi Shao, Mohamed Ameen, Kathryn A T Elliott, Dan Li, Fabian Grubert, Caiyun G Li, Shalina Taylor, Aiqin Cao, Yu Ma, Ryan Fong, Long Nguyen, Joseph C Wu, Michael P Snyder, Marlene Rabinovitch
RATIONALE: Idiopathic or heritable pulmonary arterial hypertension is characterized by loss and obliteration of lung vasculature. Endothelial cell dysfunction is pivotal to the pathophysiology but different causal mechanisms may reflect a need for patient-tailored therapies. OBJECTIVES: Endothelial cells differentiated from induced pluripotent stem cells were compared to pulmonary arterial endothelial cells from the same patients with idiopathic or heritable pulmonary arterial hypertension, to determine whether they shared functional abnormalities and altered gene expression patterns, that differed from those in unused donor cells...
October 25, 2016: American Journal of Respiratory and Critical Care Medicine
Mohammed I El-Gamal, Woo-Seok Lee, Ji-Sun Shin, Chang-Hyun Oh, Kyung-Tae Lee, Jungseung Choi, Nohsun Myoung, Daejin Baek
The synthesis of a new series of 21 fused coumarin derivatives is described, and the biological evaluation of their in vitro antiinflammatory effects as inhibitors of lipopolysaccharide (LPS)-induced nitric oxide (NO) and prostaglandin E2 (PGE2 ) production in RAW 264.7 macrophages. The target compounds 1a-u were first tested for cytotoxicity to determine a non-toxic concentration for antiinflammatory screening, so that the inhibitory effects against NO and PGE2 production would not be caused by cytotoxicity...
October 24, 2016: Archiv der Pharmazie
Tyler K Ulland, Nidhi Jain, Emma E Hornick, Eric I Elliott, Gwendolyn M Clay, Jeffrey J Sadler, Kathleen A M Mills, Ann M Janowski, A Paige Davis Volk, Kai Wang, Kevin L Legge, Lokesh Gakhar, Mohammed Bourdi, Polly J Ferguson, Mary E Wilson, Suzanne L Cassel, Fayyaz S Sutterwala
The inbred mouse strain C57BL/6J is widely used in models of immunological and infectious diseases. Here we show that C57BL/6J mice have a defect in neutrophil recruitment to a range of inflammatory stimuli compared with the related C57BL/6N substrain. This immune perturbation is associated with a missense mutation in Nlrp12 in C57BL/6J mice. Both C57BL/6J and NLRP12-deficient mice have increased susceptibility to bacterial infection that correlates with defective neutrophil migration. C57BL/6J and NLRP12-deficient macrophages have impaired CXCL1 production and the neutrophil defect observed in C57BL/6J and NLRP12-deficient mice is rescued by restoration of macrophage NLRP12...
October 25, 2016: Nature Communications
Mohamed Youssef, Sameh Hany Emile, Waleed Thabet, Hossam Ayman Elfeki, Alaa Magdy, Waleed Omar, Wael Khafagy, Mohamed Farid
BACKGROUND AND AIM: Two types of rectocele exist; type I is characterized by relatively high resting anal pressures, whereas type II has lower resting anal pressures with associated pelvic organ prolapse. We compared trans-perineal repair (TPR) of rectocele with or without limited internal sphincterotomy (LIS) in the treatment of type I anterior rectocele. PATIENTS AND INTERVENTIONS: Consecutive patients with anterior rectocele were evaluated for inclusion. Sixty-two female patients with type I anterior rectocele were randomized and equally allocated to receive TPR alone (group I) or TPR with LIS (group II)...
October 24, 2016: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
Ahmed El-Gendi, Mohamed El-Shafei, Doaa Emara
INTRODUCTION: In grade II acute cholecystitis patients presenting more than 72 h after onset of symptoms, we prospectively compared treatment with emergency (ELC) to delayed laparoscopic cholecystectomy performed 6 weeks after percutaneous transhepatic gallbladder drainage (PTGBD). METHODS: Four hundred ninety-five patients with acute cholecystitis were assessed for eligibility; 345 were excluded or declined to participate. One hundred fifty patients were treated after consent with either ELC or PTGBD...
October 24, 2016: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
Ajit Pai, Saleh Mohamed Eftaiha, George Melich, John J Park, Pey-Yi Kevin Lin, Leela M Prasad, Slawomir J Marecik
BACKGROUND: Today, extralevator abdominoperineal resection is the standard of care for low rectal cancers with sphincter involvement or location precluding anastomosis. This procedure, while effective from an oncologic point of view, is morbid, with a high incidence of wound complications and genitourinary, and sexual dysfunction. We present a modification of this procedure via a robotic approach, which maintains the radicality while reducing the soft tissue loss and potentially the morbidity...
October 24, 2016: World Journal of Surgery
Viriya Kaewkangsadan, Chandan Verma, Jennifer M Eremin, Gerard Cowley, Mohammed Ilyas, Oleg Eremin
The tumour microenvironment consists of malignant cells, stroma, and immune cells. Prominent tumour-infiltrating lymphocytes (TILs) in breast cancer are associated with a good prognosis and are predictors of a pathological complete response (pCR) with neoadjuvant chemotherapy (NAC). The contribution of different T effector/regulatory cells and cytokines to tumour cell death with NAC requires further characterisation and was investigated in this study. Breast tumours from 33 women with large and locally advanced breast cancers undergoing NAC were immunohistochemically (intratumoural, stromal) assessed for T cell subsets and cytokine expression using labelled antibodies, employing established semiquantitative methods...
2016: Journal of Immunology Research
Mohammed Al-Hariri
Diabetic patients have increased fracture risk. The pathogenesis underlying the status of bone alterations in diabetes mellitus is not completely understood but is multifactorial. The major deficits appear to be related to a deficit in mineralized surface area, a decrement in the rate of mineral apposition, deceased osteoid surface, depressed osteoblast activity, and decreased numbers of osteoclasts due to abnormal insulin signaling pathway. Other prominent features of diabetes mellitus are an increased urinary excretion of calcium and magnesium, accumulation of advanced glycation end products, and oxidative stress leading to sweet bones (altered bone's strength, metabolism, and structure)...
2016: Journal of Diabetes Research
Habeeb Salameh, Muhannad Al Hanayneh, Maen Masadeh, Mohammed Naseemuddin, Tasnia Matin, Angelika Erwin, Ashwani K Singal
Background and Aims:Patatin-like phospholipase domain protein 3 (PNPLA3) polymorphisms (rs738409 C>G) are associated with non-alcoholic fatty liver disease (NAFLD). We performed a systematic review and meta-analysis to examine the association of PNPLA3 polymorphisms with the spectrum and severity of this disease. Methods: Studies evaluating the association between the PNPLA3 polymorphism spectrum (fatty liver, steatohepatitis, cirrhosis, and hepatocellular carcinoma) and NAFLD were included. Pooled data are reported as odds ratios (ORs) with 95% confidence intervals...
September 28, 2016: Journal of Clinical and Translational Hepatology
Emna Farhat, Mourad Zouari, Ines Ben Abdelaziz, Cyrine Drissi, Rahma Beyrouti, Mohamed Ben Hammouda, Fayçal Hentati
BACKGROUND: Cerebellar ataxia represents a rare and severe complication of Sjӧgren syndrome (SS), especially with a progressive onset and cerebellar atrophy on imaging. CASE PRESENTATION: We report the case of a 30-year-old woman, with a past history of dry eyes and mouth, who presented a severe cerebellar ataxia worsening over 4 years associated with tremor of the limbs and the head. Brain MRI showed bilateral hyperintensities on T2 and FLAIR sequences, affecting periventricular white matter, with marked cerebellar atrophy...
2016: Cerebellum & Ataxias
Abeer El Sakka, Mohamed Sami El Shimi, Kareem Salama, Hend Fayez
The objective of this study is to determine the growth parameters and nutritional biochemical markers and complications of fortification of human milk by post discharge formula of preterm very low birth weight newborns (VLBW). Fifty preterm infants less than 37 weeks with weight less than 1500 g were enrolled in the study. They received parental nutrition and feeding according to our protocol. When enteral feeding reached 100 cc/kg/day, infants were randomized into two groups: group I, Cases, n=25, where post discharge formula (PDF) was used for fortification, group II, Controls, n=25 with no fortification...
September 19, 2016: Pediatric Reports
Matthew J Gazzellone, Mehdi Zarrei, Christie L Burton, Susan Walker, Mohammed Uddin, S M Shaheen, Julie Coste, Rageen Rajendram, Reva J Schachter, Marlena Colasanto, Gregory L Hanna, David R Rosenberg, Noam Soreni, Kate D Fitzgerald, Christian R Marshall, Janet A Buchanan, Daniele Merico, Paul D Arnold, Stephen W Scherer
BACKGROUND: Obsessive-compulsive disorder (OCD) is a heterogeneous neuropsychiatric condition, thought to have a significant genetic component. When onset occurs in childhood, affected individuals generally exhibit different characteristics from adult-onset OCD, including higher prevalence in males and increased heritability. Since neuropsychiatric conditions are associated with copy number variations (CNVs), we considered their potential role in the etiology of OCD. METHODS: We genotyped 307 unrelated pediatric probands with idiopathic OCD (including 174 that were part of complete parent-child trios) and compared their genotypes with those of 3861 population controls, to identify rare CNVs (<0...
2016: Journal of Neurodevelopmental Disorders
Hager H A B Eltilib, Elgasim A Elgasim, Isam A Mohamed Ahmed
The primary objective of this study was to investigate the biological effectiveness of C. rotundus rhizome powder (CRRP) in improving the quality, storability, and safety of minced beef meat. CRRP was analyzed for its flavonoid and polyphenol content, antioxidants and antimicrobial activity, and its effect on the chemical properties, microbiological and sensory quality of minced beef meat. The results revealed that CRRP had a flavonoid and polyphenol contents of 24.30 mg CE/g and 353.10 mg GAE/g, respectively...
September 2016: Journal of Food Science and Technology
Mohammad Abu-Hishmeh, Alamgir Sattar, Fnu Zarlasht, Mohamed Ramadan, Aisha Abdel-Rahman, Shante Hinson, Caroline Hwang
BACKGROUND Thrombotic thrombocytopenic purpura (TTP) is one of the thrombotic microangiopathic (TMA) syndromes, caused by severely reduced activity of the vWF-cleaving protease ADAMTS13. Systemic lupus erythematosus (SLE), on the other hand, is an autoimmune disease that affects various organs in the body, including the hematopoietic system. SLE can present with TMA, and differentiating between SLE and TTP in those cases can be very challenging, particularly in patients with no prior history of SLE. Furthermore, an association between these 2 diseases has been described in the literature, with most of the TTP cases occurring after the diagnosis of SLE...
October 25, 2016: American Journal of Case Reports
Abdulrahman Abdulla El-Hilly, Sheeraz Syed Iqbal, Maroof Ahmed, Yusuf Sherwani, Mohammed Muntasir, Sarim Siddiqui, Zaid Al-Fagih, Omar Usmani, Andreas B Eisingerich
BACKGROUND: Finding ways to increase and sustain engagement with mHealth interventions has become a challenge during application development. While gamification shows promise and has proven effective in many fields, critical questions remain concerning how to use gamification to modify health behavior. OBJECTIVE: The objective of this study is to investigate how the gamification of mHealth interventions leads to a change in health behavior, specifically with respect to smoking cessation...
October 24, 2016: JMIR Serious Games
Waeel Ossama Hamouda, Mohammed Aladdin, Sarah Abdulaziz Al-Muammar, Danya Mohammed Khalid Gari
BACKGROUND: Microscopic lumbar discectomy is a common, minimally invasive surgery. A transverse skin incision has sound theoretical cosmetic advantages in comparison to the classic vertical incision. OBJECTIVES: the study aimed to compare transverse and vertical skin incisions for microscopic discectomy regarding cosmetic outcome, postoperative pain and the provided surgical cutaneous inlet. MATERIALS & METHODS: Eighty-six patients were randomly enrolled prospectively in the study, divided among a vertical incision group (V group) and a transverse incision group (T group)...
October 21, 2016: World Neurosurgery
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