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https://www.readbyqxmd.com/read/29036691/nuclear-localized-c9orf72-associated-arginine-containing-dipeptides-exhibit-age-dependent-toxicity-in-c-elegans
#1
Paige Rudich, Carley Snoznik, Simon C Watkins, John Monaghan, Udai Bhan Pandey, Todd Lamitina
A hexanucleotide repeat expansion mutation in the C9orf72 gene represents a prevalent genetic cause of several neurodegenerative diseases, including amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Non-canonical translation of this repeat gives rise to several distinct dipeptide protein species that could play pathological roles in disease. Here, we show in the model system C. elegans that expression of the arginine-containing dipeptides, but not alanine-containing dipeptides, produces toxic phenotypes in multiple cellular contexts, including motor neurons...
September 27, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/29036344/comparison-of-the-in-vivo-induction-and-transmission-of-%C3%AE-synuclein-pathology-by-mutant-%C3%AE-synuclein-fibril-seeds-in-transgenic-mice
#2
Nicola J Rutherford, Jess-Karan S Dhillon, Cara J Riffe, Jasie K Howard, Mieu Brooks, Benoit I Giasson
Parkinson's disease is one of many neurodegenerative diseases termed synucleinopathies, neuropathologically defined by inclusions containing aggregated α-synuclein. α-synuclein gene (SNCA) mutations can directly cause autosomal dominant Parkinson's disease. In vitro studies demonstrated that SNCA missense mutations may either enhance or diminish α-synuclein aggregation but cross seeding of mutant and wild-type α-synuclein proteins appear to reduce aggregation efficiency. Here we extended these studies by assessing the effects of seeded α-synuclein aggregation in α-synuclein transgenic mice through intracerebral or peripheral injection of various mutant α-synuclein fibrils...
September 27, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/29034191/pharmacological-properties-of-salvia-officinalis-and-its-components
#3
Ahmad Ghorbani, Mahdi Esmaeilizadeh
Salvia officinalis (Sage) is a plant in the family of Labiatae/Lamiaceae. It is native to Middle East and Mediterranean areas, but today has been naturalized throughout the world. In folk medicine, S. officinalis has been used for the treatment of different kinds of disorders including seizure, ulcers, gout, rheumatism, inflammation, dizziness, tremor, paralysis, diarrhea, and hyperglycemia. In recent years, this plant has been a subject of intensive studies to document its traditional use and to find new biological effects...
October 2017: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29033776/carbohydrate-antigen-19-9-positive-gastric-adenocarcinoma-autopsy-findings-and-review-of-the-literature
#4
Tan Wang, Yoko Matsuda, Atsuko Seki, Keisuke Nonaka, Mototsune Kakizaki, Daita Kaneda, Junko Takahashi-Fujigasaki, Shigeo Murayama, Tomio Arai
Carbohydrate antigen 19-9 (CA19-9) is a well-known tumor marker for pancreatobiliary cancer, and several studies have shown that an elevated serum CA19-9 level is associated with more aggressive biological behavior in gastric cancer (GC). However, the clinicopathological characteristics of CA19-9-positive GC remain unclear. We herein report an autopsy case of CA19-9-positive GC in an 84-year-old man who was admitted to our hospital because of paralysis and anemia. Autopsy revealed an ulcerative-invasive tumor measuring 72 × 60 mm in the anterior wall of the gastric body...
September 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/29033570/atypical-depression-current-perspectives
#5
REVIEW
Dorota Łojko, Janusz K Rybakowski
The history and present status of the definition, prevalence, neurobiology, and treatment of atypical depression (AD) is presented. The concept of AD has evolved through the years, and currently, in Diagnostic and Statistical Manual of Mental Disorders (DSM), Fifth Edition, the specifier of depressive episode with atypical feature is present for both diagnostic groups, that is, depressive disorders and bipolar and related disorders. This specifier includes mood reactivity, hyperphagia, hypersomnia, leaden paralysis, and interpersonal rejection sensitivity...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/29033484/congenital-malformation-and-autism-spectrum-disorder-insight-from-a-rat-model-of-autism-spectrum-disorder
#6
Rakesh K Ruhela, Phulen Sarma, Shringika Soni, Ajay Prakash, Bikash Medhi
AIMS AND OBJECTIVES: The primary aim was an evaluation of the pattern of gross congenital malformations in a rat model of autism spectrum disorder (ASD) and the secondary aim was characterization of the most common gross malformation observed. MATERIALS AND METHODS: In females, the late pro-oestrous phase was identified by vaginal smear cytology, and then, they were allowed to mate at 1:3 ratio (male: female). Pregnancy was confirmed by the presence of sperm plug in the vagina and presence of sperm in the vaginal smear...
May 2017: Indian Journal of Pharmacology
https://www.readbyqxmd.com/read/29032419/objective-assessment-of-the-reliability-of-the-house-brackmann-and-fisch-grading-of-synkinesis
#7
Verena Meier-Gallati, Henning Scriba
The objective of this paper is to assess synkinesis associated with post paretic voluntary facial movements using the objective OSCAR method and to investigate the correlation between synkinesis and paresis to compare the objective results with the subjective scaling systems of Fisch and House-Brackmann. The development of an objective assessment of synkinesis with the OSCAR method is focused on the clinically most relevant eye-mouth and forehead-mouth synkinetic movements. Thirteen patients with unilateral facial paralysis and synkinesis of the University Hospital Zurich were examined...
October 14, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29032027/peripheral-neuropathy-and-hindlimb-paralysis-in-a-mouse-model-of-adipocyte-specific-knockout-of-lkb1
#8
Yan Xiong, Jessica C Page, Naagarajan Narayanan, Chao Wang, Zhihao Jia, Feng Yue, Xine Shi, Wen Jin, Keping Hu, Meng Deng, Riyi Shi, Tizhong Shan, Gongshe Yang, Shihuan Kuang
Brown adipose tissues (BAT) burn lipids to generate heat through uncoupled respiration, thus representing a powerful target to counteract lipid accumulation and obesity. The tumor suppressor liver kinase b1 (Lkb1) is a key regulator of cellular energy metabolism; and adipocyte-specific knockout of Lkb1 (Ad-Lkb1 KO) leads to the expansion of BAT, improvements in systemic metabolism and resistance to obesity in young mice. Here we report the unexpected finding that the Ad-Lkb1 KO mice develop hindlimb paralysis at mid-age...
September 21, 2017: EBioMedicine
https://www.readbyqxmd.com/read/29031941/the-travel-diaries-of-tetanus-and-botulinum-neurotoxins
#9
Sunaina Surana, Andrew P Tosolini, Ione F G Meyer, Alexander D Fellows, Sergey S Novoselov, Giampietro Schiavo
Tetanus (TeNT) and botulinum (BoNT) neurotoxins, the causative agents of tetanus and botulism, respectively, are the most potent toxic molecules known to mankind. This extreme potency is attributed to: i) their specificity for essential components of the neurotransmitter release machinery present at vertebrate synapses, and ii) their high-affinity targeting to motor neurons by binding to polysialogangliosides and protein receptors. Comprising the clostridial neurotoxin family, TeNT and BoNTs engage distinct surface receptors and intracellular sorting pathways in neurons...
October 12, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/29031754/predictors-of-insomnia-onset-in-adolescents-in-japan
#10
Mikiko Tokiya, Yoshitaka Kaneita, Osamu Itani, Maki Jike, Takashi Ohida
OBJECTIVE: The objective of this study was to clarify the incidence rate and predictive factors of insomnia in Japanese junior and senior high school students. METHODS: We conducted a baseline survey on first year junior and senior high school students (seventh and 10th graders) throughout the nation. A follow-up survey was then conducted two years later. For both surveys, we used self-administered questionnaires inquiring about sleep, mental health status, lifestyle, participation in club activities, and study hours...
October 2017: Sleep Medicine
https://www.readbyqxmd.com/read/29031032/the-frequency-and-clinical-implications-of-bacteriuria-in-chronically-paralyzed-dogs
#11
S R Baigi, S Vaden, N J Olby
BACKGROUND: Paralysis is a known risk factor for urinary tract infections (UTI), sepsis, and death in paralyzed people, but there are no data available on diagnostic criteria for UTI versus bacteriuria, their frequency, or clinical implications in chronically paralyzed dogs. HYPOTHESIS/OBJECTIVES: That chronically paralyzed dogs suffer frequent bacteriuria causing reduced duration of survival. We documented the frequency of bacteriuria, associated clinical signs, and survival rate in chronically paralyzed dogs...
October 14, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29030733/high-yield-preparation-of-functionally-active-catalytic-translocation-domain-module-of-botulinum-neurotoxin-type-a-that-exhibits-uniquely-different-enzyme-kinetics
#12
Harkiranpreet Kaur Dhaliwal, Nagarajan Thiruvanakarasu, Raj Kumar, Kruti Patel, Ghuncha Ambrin, Shouwei Cai, Bal Ram Singh
Botulinum neurotoxins (BoNTs) are the most toxic proteins known to cause flaccid muscle paralysis as a result of inhibition of neurotransmitter release from peripheral cholinergic synapses. BoNT type A (BoNT/A) is a 150 kDa protein consisting of two major subunits: light chain (LC) and heavy chain (HC). The LC is required for the catalytic activity of neurotoxin, whereas the C and N terminal domains of the HC are required for cell binding, and translocation of LC across the endosome membranes, respectively...
October 13, 2017: Protein Journal
https://www.readbyqxmd.com/read/29030576/genetic-induction-of-hypometabolism-by-ablation-of-mc4r-does-not-suppress-als-like-phenotypes-in-the-g93a-mutant-sod1-mouse-model
#13
Shachee Doshi, Preetika Gupta, Robert G Kalb
Dysfunction and death of motor neurons leads to progressive paralysis in amyotrophic lateral sclerosis (ALS). Recent studies have reported organism-level metabolic dysfunction as a prominent but poorly understood feature of the disease. ALS patients are hypermetabolic with increased resting energy expenditure, but if and how hypermetabolism contributes to disease pathology is unknown. We asked if decreasing metabolism in the mutant superoxide dismutase 1 (SOD1) mouse model of ALS (G93A SOD1) would alter motor function and survival...
October 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29030129/laryngeal-and-vocal-alterations-after-thyroidectomy
#14
Renata Mizusaki Iyomasa, José Vicente Tagliarini, Sérgio Augusto Rodrigues, Elaine Lara Mendes Tavares, Regina Helena Garcia Martins
INTRODUCTION: Dysphonia is a common symptom after thyroidectomy. OBJECTIVE: To analyze the vocal symptoms, auditory-perceptual and acoustic vocal, videolaryngoscopy, the surgical procedures and histopathological findings in patients undergoing thyroidectomy. METHODS: Prospective study. Patients submitted to thyroidectomy were evaluated as follows: anamnesis, laryngoscopy, and acoustic vocal assessments. Moments: pre-operative, 1st post (15 days), 2nd post (1 month), 3rd post (3 months), and 4th post (6 months)...
September 21, 2017: Brazilian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/29029275/surgical-management-of-intrinsic-tumors-of-the-facial-nerve
#15
Sampath Chandra Prasad, Melissa Laus, Manjunath Dandinarasaiah, Enrico Piccirillo, Alessandra Russo, Abdelkader Taibah, Mario Sanna
BACKGROUND: Intrinsic tumors of the facial nerve are a rare entity. Dealing with this subset of tumors is challenging both in terms of decision making and surgical intervention. OBJECTIVE: To review the outcomes of surgical management of facial nerve tumors and cable nerve graft interpositioning. METHODS: A retrospective analysis was performed at a referral center for skull base pathology. One hundred fifteen patients who were surgically treated for facial nerve tumors were included...
September 29, 2017: Neurosurgery
https://www.readbyqxmd.com/read/29028962/clinical-features-of-acute-flaccid-myelitis-temporally-associated-with-an-enterovirus-d68-outbreak-results-of-a-nationwide-survey-of-acute-flaccid-paralysis-in-japan-august-december-2015
#16
Pin Fee Chong, Ryutaro Kira, Harushi Mori, Akihisa Okumura, Hiroyuki Torisu, Sawa Yasumoto, Hiroyuki Shimizu, Tsuguto Fujimoto, Nozomu Hanaoka, Susumu Kusunoki, Toshiyuki Takahashi, Kazunori Oishi, Keiko Tanaka-Taya
Backgroud: Acute flaccid myelitis (AFM) is an acute flaccid paralysis (AFP) syndrome with spinal motor neuron involvement of unknown etiology. We investigated the characteristics and prognostic factors of AFM clusters coincident with an enterovirus D68 (EV-D68) outbreak in Japan during autumn 2015. Methods: An AFM case series study was conducted following a nationwide survey from August to December 2015. Radiographic and neurophysiologic data were subjected to centralized review, and virology studies were conducted for available specimens...
October 6, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29028678/increase-in-medical-emergency-calls-and-calls-for-central-nervous-system-symptoms-during-a-severe-air-pollution-event-january-2013-jinan-city-china
#17
Liangliang Cui, George A Conway, Lan Jin, Jingwen Zhou, Jun Zhang, Xinwei Li, Lei Zhou, Tiantian Li, Ji Zhang
BACKGROUND: In January 2013, a continuous and severe haze event affected one third of the major cities in China, including Jinan. OBJECTIVES: We investigated whether medical emergency calls (for nonaccidental emergencies) and calls for Central Nervous System (CNS) syndromes increased during this episode compared with the previous winter months (January, February, and December) in 2011 and 2012. METHODS: Daily emergency calls were obtained from Jinan Medical Emergency Center...
October 2017: Epidemiology
https://www.readbyqxmd.com/read/29027927/conotoxins-as-tools-to-understand-the-physiological-function-of-voltage-gated-calcium-cav-channels
#18
REVIEW
David Ramírez, Wendy Gonzalez, Rafael A Fissore, Ingrid Carvacho
Voltage-gated calcium (CaV) channels are widely expressed and are essential for the completion of multiple physiological processes. Close regulation of their activity by specific inhibitors and agonists become fundamental to understand their role in cellular homeostasis as well as in human tissues and organs. CaV channels are divided into two groups depending on the membrane potential required to activate them: High-voltage activated (HVA, CaV1.1-1.4; CaV2.1-2.3) and Low-voltage activated (LVA, CaV3.1-3.3)...
October 13, 2017: Marine Drugs
https://www.readbyqxmd.com/read/29027754/afatinib-treatment-of-a-squamous-lung-cancer-after-tumor-progression-of-nivolumab
#19
Yinghua Jin, Qiuying Jiang, Tao Xin
Nivolumab prolonged disease control in a patient with advanced squamous lung cancer that was refractory to multiple treatments. The rapid eradication of cancer after the administration of nivolumab caused hemoptysis and repeated infection. Six months after immunotherapy, mediastinal lymph node metastasis developed and afatinib effectively relieved dysphonia associated with nerve paralysis.
October 13, 2017: Thoracic Cancer
https://www.readbyqxmd.com/read/29026828/objective-outcomes-of-minimally-invasive-temporalis-tendon-transfer-for-prolonged-complete-facial-paralysis
#20
Michal Brichacek, Babar Sultan, Kofi D Boahene, Lisa Ishii, Patrick J Byrne
OBJECTIVES: We describe an approach to reanimation of complete, prolonged facial paralysis using minimally invasive temporalis tendon transfer (MIT3) by the melolabial or transoral approach. Objective outcome measures are evaluated based on symmetry, and grading of preoperative/post-operative results and the scar at the melolabial fold. STUDY DESIGN: Retrospective cohort study. METHODS: Twenty-five patients undergoing the MIT3 technique were studied...
August 2017: Plastic Surgery
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