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Li Xie, Liqin Chen, Pan Gu, Lanlan Wei, Xuejun Kang
The extraction and analysis of catecholamine neurotransmitters in biological fluids is of great importance in assessing nervous system function and related diseases, but their precise measurement is still a challenge. Many protocols have been described for neurotransmitter measurement by a variety of instruments, including high-pressure liquid chromatography (HPLC). However, there are shortcomings, such as complicated operation or hard-to-detect multiple targets, which cannot be avoided, and presently, the dominant analysis technique is still HPLC coupled with sensitive electrochemical or fluorimetric detection, due to its high sensitivity and good selectivity...
March 1, 2018: Journal of Visualized Experiments: JoVE
Zakaria Aboulbanine, Naïma El Khayati
The use of phase space in medical linear accelerator Monte Carlo (MC) simulations significantly improves the execution time and leads to results comparable to those obtained from full calculations. The classical representation of phase space stores directly the information of millions of particles, producing bulky files. This paper presents a virtual source model (VSM) based on a reconstruction algorithm, taking as input a compressed file of roughly 800 kb derived from phase space data freely available in the International Atomic Energy Agency (IAEA) database...
March 19, 2018: Physics in Medicine and Biology
Juarez P Dias, Maria da Conceição N Costa, Gubio Soares Campos, Enny S Paixão, Marcio S Natividade, Florisneide R Barreto, Martha Suely C Itaparica, Cristina Goes, Francisca L S Oliveira, Eloisa B Santana, Neusa S J Silva, Carlos A A Brito, Laura C Rodrigues, Silvia Inez Sardi, Ramon C Saavedra, Maria Glória Teixeira
Chikungunya has had a substantial impact on public health because of the magnitude of its epidemics and its highly debilitating symptoms. We estimated the seroprevalence, proportion of symptomatic cases, and proportion of chronic form of disease after introduction of chikungunya virus (CHIKV) in 2 cities in Brazil. We conducted the population-based study through household interviews and serologic surveys during October-December 2015. In Feira de Santana, we conducted a serologic survey of 385 persons; 57.1% were CHIKV-positive...
April 2018: Emerging Infectious Diseases
Arantzazu Zabala, Monika Salgueiro, Oihane Sáez-Atxukarro, Javier Ballesteros, Guillermo Ruiz-Irastorza, Rafael Segarra
OBJECTIVES: Systemic lupus erythematosus (SLE) is a chronic autoimmune disease. Its most prevalent manifestation is neuropsychiatric SLE (NP-SLE), which is characterized by increased involvement of the nervous system, with relevant symptoms, such as marked cognitive deficits, which are directly involved in subsequent functional disability. The objective of this study is to identify and compare the profile of cognitive deficits in patients with NP-SLE and patients with non-neuropsychiatric SLE (nonNP-SLE) by means of a systematic review and meta-analysis...
March 19, 2018: Journal of the International Neuropsychological Society: JINS
Antonella Capasso, Rossella Mastroianni, Annalisa Passariello, Marta Palma, Francesco Messina, Antonella Ansalone, Italo Bernardo, Daniela Brescia, Francesco Crispino, Carolina Grassia, Attilio Romano, Gaetano Ausanio
PURPOSE: The neonatologists of Sant'Anna and San Sebastiano Hospital of Caserta have carried out a pilot study investigating the safety, feasibility, and accuracy of intracavitary electrocardiography for neonatal epicutaneous cava catheter tip positioning. PATIENTS AND METHODS: We enrolled 39 neonates (1-28 days of postnatal age or correct age lower than 41 weeks) requiring epicutaneous cava catheter in the district of superior vena cava (head-neck or upper limbs)...
March 1, 2018: Journal of Vascular Access
Balázs Dezsényi, László Sárközi, László Kaiser, Klára Tárkányi, Radka Nikolova, Zorán Belics
Enterobiasis is an easily recognizable and treatable disease with higher incidence among children. Based on these facts, its clinical importance is usually underestimated. This infection also occurs during adulthood and without treatment, it can cause severe complications in some rare cases. Unnoticed subclinical infection in women can lead to infertility and even to life-threatening conditions. It is also emphasized in this paper that the treatment of identified enterobiasis during pregnancy needs caution...
March 19, 2018: Acta Microbiologica et Immunologica Hungarica
Yoshiaki Hattori, Takashi Taniguchi, Kenji Watanabe, Kosuke Nagashio
Hexagonal boron nitride (h-BN) is an important insulating substrate for two-dimensional (2D) heterostructure devices and possesses high dielectric strength comparable to SiO2. Here, we report two clear differences in their physical properties. The first one is the occurrence of Fermi level pinning at the metal/h-BN interface, unlike that at the metal/SiO2 interface. The second difference is that the carrier polarity of Fowler-Nordheim (F-N) tunneling through h-BN is that of a hole, which is opposite to that of an electron in the case of SiO2...
March 19, 2018: ACS Applied Materials & Interfaces
Xiao-Meng Zhang, Bing Zhang, Fan Li, Zhi-Ping Tian
To analyze the efficacy and safety of the combination therapy of Aconitum and Western medicine in the treatment of rheumatoid arthritis (RA) by Meta-analysis, and provide evidence for its clinic application for RA. The random clinical trials (RCTs) regarding the combination therapy for treating RA were retrieved in the database of China National Knowledge Infrastructure database, China Science and Technology Journal database, WanFang, Chinese Biomedical Medical Database, PubMed, and Cochrane Library up to July 2017...
January 2018: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
Kalliopi Platoni, Stefanos Diamantopoulos, Maria Dilvoi, Panagiotis Delinikolas, Efrosyni Kypraiou, Efstathios Efstathopoulos, Vassilis Kouloulias
Kaposi's sarcoma (KS) is a systemic neoplastic disease that can present cutaneous symptoms and is usually treated with a systematic approach due to its extent. Due to its radiosensitivity, radiotherapy is considered one of its main treatments, for palliation and local control of the skin and mucosal lesions. The aim of this paper was to report the first case of KS treated by hemi-body electron irradiation protocol in Greece. A fractionated 40 Gy hemi-body electron irradiation was prescribed to a 60-year-old male patient with KS at his legs...
January 2018: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
Alper Sayiner, Dinc Suren
PURPOSE: Distinction of thyroid neoplasms that include papillary carcinoma (PC) and follicular carcinoma (FC) from benign thyroid neoplasms can be performed successfully by histopathologic examination in most of the cases. However, in some cases it may be difficult to distinct PC and FC as well as FC and follicular adenoma (FA) and also FA and the dominant nodule of multinodular goiter (MNG) histopathologically. In this study, we aimed to determine the role of expression of the human telomerase reverse transcriptase (hTERT) in the distinction of thyroid neoplasms and its relation with prognostic factors by immunohistochemical methods...
January 2018: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
Chen Sun, Jianxia Li
PURPOSE: To investigate the expression of microRNA (miRNA-137) in oral squamous cell carcinoma (OSCC) and its effects on activity, invasion and proliferation of OSCC human squamous cell carcinoma cell lines 2 (HSC-2 cell line). METHODS: 158 cases of pathologically-confirmed OSCC tissues and corresponding para-cancerous tissues were collected. The tissue mRNA was extracted and miRNA-137 expression in tissues was detected using real-time polymerase chain reaction (RT-PCR)...
January 2018: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
Ioannis D Kostakis, George Agrogiannis, Aristeidis G Vaiopoulos, Eleni Mylona, Efstratios Patsouris, Gregory Kouraklis, Michael Koutsilieris
PURPOSE: Kisspeptins, which are derived from the gene KISS1, supress tumor progression. We intended to investigate the production of KISS1 and its receptor (KISSR) in gastric cancer. METHODS: The expression of KISS1 and KISS1R in both normal and cancer tissue was examined with immunohistochemistry in tissue specimens of 40 cases of gastric adenocarcinoma. RESULTS: KISS1 expression in normal gastric mucosa was much higher than in malignant mucosa...
January 2018: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
Aleksandar Stepanovic, Marina Nikitovic
Glioblastoma is the most frequent primary malignant brain tumor in adults. With the number of symptoms and signs, it belongs to diseases where a lot of treatment modalities are often applied. A standard treatment for patients with glioblastoma includes surgical resection followed by radiotherapy with concomitant and adjuvant temozolomide. Each type of treatment has its own toxicity. Temozolomide is an oral alkylating cytotoxic drug and like any other alkylating agent can induce side effects. Although temozolomide is generally a well tolerated drug, with rare severe toxic effects, sometimes certain toxicities can overcome the life risk of the underlying malignancy...
January 2018: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
D Evrard, E Routier, C Mateus, G Tomasic, J Lombroso, F Kolb, C Robert, A Moya-Plana
PURPOSE: Sentinel lymph node biopsy (SLNB) is now a standard of care for cutaneous melanoma, but it is still controversial for cutaneous head and neck melanoma (CHNM). This study aims to confirm the feasibility, accuracy and low morbidity of SLNB in CHNM and evaluate its prognostic value. METHODS: A monocentric and retrospective study on patients with CHNM treated in our tertiary care center (Gustave Roussy) between January 2008 and December 2012 was performed. The feasibility, morbidity and prognostic value of this technique were analysed...
March 19, 2018: European Archives of Oto-rhino-laryngology
Nishit Bhatnagar, Siddharth Sharma, Virender Kumar Gautam, Ajeet Kumar, Anurag Tiwari
PURPOSE: Spontaneous osteonecrosis of the knee affects the medial femoral condyle in patients above 55 years of age. Many reports and studies are available from western countries. But there is a gross paucity of literature on spontaneous osteonecrosis of the knee (SPONK) in the Indian subcontinent, either it is under-reported or detected at a later stage. The aim of our study was to detect SPONK in Indian population and describe its characteristics, treatment, and outcome. MATERIAL AND METHOD: A prospective study was conducted over a period of three years...
March 18, 2018: International Orthopaedics
Syed M Hasan, Nida N Ahmed, Zunirah Ahmed, Allan Seibert
Amyloidosis is a rare disorder with a wide spectrum of presentations and anomalies. It is subdivided into 2 broad categories based on protein deposition; primary and secondary amyloidosis. It can present as a single-organ involvement or as a diffuse infiltrative multi-organ process. Isolated hepatic amyloidosis presentation is a rare phenomenon that develops due to insoluble amyloid deposition in liver. Its clinical presentation is usually vague and ranges from mild hepatomegaly with elevated liver enzymes to acute liver failure and hepatic rupture...
January 2018: Journal of Investigative Medicine High Impact Case Reports
Shivani Jaswal, Varinder Saini, Jasbinder Kaur, Seema Gupta, Harjeet Kaur, Kranti Garg
Context: Chronic obstructive pulmonary disease (COPD) is not only restricted to the pulmonary inflammation and airway obstruction but is also associated with comorbidities, which affect the therapeutic intervention and the quality of life and survival. Markers that can predict the systemic inflammation and a decline in the pulmonary function are of scientific interest. Adiponectin (APN) appears to be one such biomarker and can be used as a potential indicator of severity and response to treatment in patients of COPD...
January 2018: International Journal of Applied and Basic Medical Research
Nitika Mehta, Rohit Sharma, Rajneesh Madhok, Tanu Agrawal, Vinit Sharma
Objectives: Management of neck metastases in terms of diagnosis and treatment has always been a controversial issue in patients of head and neck malignancy. The main area of debate in case of diagnosis lies with the fact that whether we should rely on ultrasound, as a diagnostic modality for diagnosing micrometastases in the neck in head and neck malignancy patients? The second controversial issue is the management of N0 neck, whether to be radical or conservative? Materials and Methods: This study was conducted on 70 diagnosed patients of head and neck carcinoma who were planned for resection of the primary...
January 2018: International Journal of Applied and Basic Medical Research
Federico Davini, Sara Ricciardi, Carmelina Cristina Zirafa, Ilenia Cavaliere, Gaetano Romano, Franca Melfi
Background: The incidental detection of solitary pulmonary nodule (SPN) is currently increasing due to the widespread use of computed tomography (CT) during the follow up in oncological patients or in screening trials. A quick and definitive histological diagnosis of these nodes is mandatory as, in case of primitive lung cancer, an early detection could improve both surgical results and prognosis. The minimally invasive pulmonary resection (MIPR) is the gold standard procedure for diagnosis and treatment of small lung nodules, but it can be difficult to localize deep nonpalpable nodes that lie in the lung parenchyma...
2018: Journal of Visualized Surgery
Nicusor Iftimia, Jesung Park, Gopi Maguluri, Savitri Krishnamurthy, Amanda McWatters, Sharjeel H Sabir
We report the development and the pre-clinical testing of a new technology based on optical coherence tomography (OCT) for investigating tissue composition at the tip of the core biopsy needle. While ultrasound, computed tomography, and magnetic resonance imaging are routinely used to guide needle placement within a tumor, they still do not provide the resolution needed to investigate tissue cellularity (ratio between viable tumor and benign stroma) at the needle tip prior to taking a biopsy core. High resolution OCT imaging, however, can be used to investigate tissue morphology at the micron scale, and thus to determine if the biopsy core would likely have the expected composition...
February 1, 2018: Biomedical Optics Express
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