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https://www.readbyqxmd.com/read/29228003/a-mig-15-jnk-1-map-kinase-cascade-opposes-rpm-1-signaling-in-synapse-formation-and-learning
#1
Oliver Crawley, Andrew C Giles, Muriel Desbois, Sudhanva Kashyap, Rayna Birnbaum, Brock Grill
The Pam/Highwire/RPM-1 (PHR) proteins are conserved intracellular signaling hubs that regulate synapse formation and axon termination. The C. elegans PHR protein, called RPM-1, acts as a ubiquitin ligase to inhibit the DLK-1 and MLK-1 MAP kinase pathways. We have identified several kinases that are likely to form a new MAP kinase pathway that suppresses synapse formation defects, but not axon termination defects, in the mechanosensory neurons of rpm-1 mutants. This pathway includes: MIG-15 (MAP4K), NSY-1 (MAP3K), JKK-1 (MAP2K) and JNK-1 (MAPK)...
December 11, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/29227692/autonomous-emergency-braking-systems-adapted-to-snowy-road-conditions-improve-drivers-perceived-safety-and-trust
#2
Ioana Koglbauer, Jürgen Holzinger, Arno Eichberger, Cornelia Lex
OBJECTIVE: This study investigated drivers' evaluation of a conventional autonomous emergency braking (AEB) system on high and reduced tire-road friction, and compared these results to those of an AEB system adaptive to the reduced tire-road friction by earlier braking. Currently automated systems such as the AEB do not adapt the vehicle control strategy to the road friction, e.g. on snowy roads. Since winter precipitation is associated with a 19% increase in traffic crashes and a 13% increase in injuries compared to dry conditions, the potential of conventional AEB to prevent collisions could be significantly improved by including friction in the control algorithm...
December 11, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/29227640/raman-spectroscopy-applied-to-parathyroid-tissues-a-new-diagnostic-tool-to-discriminate-normal-tissue-from-adenoma
#3
Andrea Palermo, Marco Fosca, Gaia Tabacco, Federico Marini, Valerio Graziani, Maria Carla Santarsia, Filippo Longo, Angelo Lauria, Roberto Cesareo, Isabella Giovannoni, Chiara Taffon, Massimiliano Rocchia, Silvia Manfrini, Pierfilippo Crucitti, Paolo Pozzilli, Anna Crescenzi, Julietta V Rau
Primary hyperparathyroidism is an endocrine disorder characterized by autonomous production of parathyroid hormone. Patients with the symptomatic disease should be referred for parathyroidectomy. However, the distinction between the pathological condition and the benign one is very challenging in the surgical setting; therefore, accurate recognition is important to ensure success during minimally invasive surgery. At present, all intraoperative techniques significantly increase surgical time and, consequently, cost...
December 11, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29227156/the-characterization-of-biosignatures-in-caves-using-an-instrument-suite
#4
Kyle Uckert, Nancy J Chanover, Stephanie Getty, David G Voelz, William B Brinckerhoff, Nancy McMillan, Xifeng Xiao, Penelope J Boston, Xiang Li, Amy McAdam, David A Glenar, Arriana Chavez
The search for life and habitable environments on other Solar System bodies is a major motivator for planetary exploration. Due to the difficulty and significance of detecting extant or extinct extraterrestrial life in situ, several independent measurements from multiple instrument techniques will bolster the community's confidence in making any such claim. We demonstrate the detection of subsurface biosignatures using a suite of instrument techniques including IR reflectance spectroscopy, laser-induced breakdown spectroscopy, and scanning electron microscopy/energy dispersive X-ray spectroscopy...
December 2017: Astrobiology
https://www.readbyqxmd.com/read/29226998/antisense-suppression-of-glial-fibrillary-acidic-protein-as-a-treatment-for-alexander-disease
#5
Tracy L Hagemann, Berit Powers, Curt Mazur, Aneeza Kim, Steven Wheeler, Gene Hung, Eric Swayze, Albee Messing
OBJECTIVE: Alexander disease is a fatal leukodystrophy caused by autosomal dominant gain-of-function mutations in the gene for glial fibrillary acidic protein (GFAP), an intermediate filament protein primarily expressed in astrocytes of the central nervous system. A key feature of pathogenesis is over-expression and accumulation of GFAP, with formation of characteristic cytoplasmic aggregates known as Rosenthal fibers. Here we investigate whether suppressing GFAP with antisense oligonucleotides could provide a therapeutic strategy for treating Alexander disease...
December 11, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/29226466/childhood-onset-cluster-headache-observations-from-a-personal-case-series-and-review-of-the-literature
#6
Arens Taga, Gian Camillo Manzoni, Marco Russo, Maria Vittoria Paglia, Paola Torelli
BACKGROUND/OBJECTIVES: Puberty seems to be a turning point in cluster headache (CH) onset. To verify its influence on CH phenotype, we focused on cases with onset ≤13 years. A review of the literature follows. METHOD: We considered CH cases with age-of-onset ≤13 years evaluated at our center between 1975 and 2015; these cases were matched by sex to two consecutive patients with age-of-onset as close as possible (±2 years) to the median age-of-onset of the overall CH population...
December 11, 2017: Headache
https://www.readbyqxmd.com/read/29226326/retreg1-fam134b-a-new-player-in-human-diseases-15-years-after-the-discovery-in-cancer
#7
REVIEW
Farhadul Islam, Vinod Gopalan, Alfred King-Yin Lam
FAM134B (family with sequence similarity 134, member B) / RETREG1 and its functional roles are relatively new in human diseases. This review aimed to summarize various functions of FAM134B since our first discovery of the gene in 2001. The protein encoded by FAM134B is a reticulophagy receptor that regulates turnover of the endoplasmic reticulum (ER) by selective phagocytosis. Absence or non-functional expression of FAM134B protein impairs ER-turnover and thereby is involved in the pathogenesis of some human diseases...
December 11, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29226314/sneezing-in-primary-headaches-with-cranial-autonomic-symptoms-pathophysiological-considerations-a-series-of-case-reports
#8
Sylvain Redon, Anne Donnet
OBJECTIVE: To report a case series of sneezing systematically occurring in two cases with migraine and cranial autonomic symptoms and two with cluster headache. BACKGROUND: Sneezing occurring systematically during cluster headache or migraine is a rare condition. Sneezing has been described as a specific trigger for migraine. METHODS: Case reports. CASE SERIES: We describe four patients with primary headaches, presenting systematic sneezing at a definite time of premonitory, postdromal, or headache phase...
December 11, 2017: Headache
https://www.readbyqxmd.com/read/29226274/virtual-dissection-by-ultrasound-probe-handling-in-the-first-year-of-medical-education
#9
Graziano Serrao, Massimo Tassoni, Alberto M Magenta-Biasina, Antonio Giuseppe Mantero, Antonino Previtera, Michela Crisitna Turci, Elia Mario Biganzoli, Emanuela A M Bertolini
Objectives: The aim of the present study was to assess the educational plan of first-year students of medicine by analyzing their scores in ultrasound body scanning. Methods: Since 2009, the San Paolo Medical School (Milan, Italy) has vertically integrated the study of anatomy with ultrasound-assisted virtual body dissection. Three modules were supplied: musculoskeletal system, heart and abdomen pelvis. 653 first-year students were trained. The students alternated as mutual model and operator...
September 2017: Ultrasound International Open
https://www.readbyqxmd.com/read/29226156/micrornas-regulate-thymic-epithelium-in-age-related-thymic-involution-via-down-or-upregulation-of-transcription-factors
#10
REVIEW
Minwen Xu, Xiaoli Zhang, Ruiyun Hong, Dong-Ming Su, Liefeng Wang
Age-related thymic involution is primarily induced by defects in nonhematopoietic thymic epithelial cells (TECs). It is characterized by dysfunction of multiple transcription factors (TFs), such as p63 and FoxN1, and also involves other TEC-associated regulators, such as Aire. These TFs and regulators are controlled by complicated regulatory networks, in which microRNAs (miRNAs) act as a key player. miRNAs can either directly target the 3'-UTRs (untranslated regions) of the TFs to suppress TF expression or target TF inhibitors to reduce or increase TF inhibitor expression and thereby indirectly enhance or inhibit TF expression...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29226126/prevalence-of-autonomic-dysreflexia-in-patients-with-spinal-cord-injury-above-t6
#11
Eun Sun Lee, Min Cheol Joo
Objective: To investigate the prevalence of autonomic dysreflexia (AD) using ambulatory blood pressure monitoring (ABPM) and the autonomic dysfunction following spinal cord injury (ADFSCI) questionnaire in patients with spinal cord injury (SCI) above T6. Methods: Twenty-eight patients diagnosed with SCI above T6 were enrolled. ABPM and ADFSCI were utilized to assess AD. Using ABPM, systolic blood pressure (SBP), diastolic blood pressure, and heart rate (HR) were measured at 30-minute intervals...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29225303/evaluation-of-heat-stress-response-in-crossbred-dairy-cows-under-tropical-climate-by-analysis-of-heart-rate-variability
#12
Chan Bun, Youki Watanabe, Yoshihisa Uenoyama, Naoko Inoue, Nahoko Ieda, Fuko Matsuda, Hiroko Tsukamura, Masayoshi Kuwahara, Kei-Ichiro Maeda, Satoshi Ohkura, Vutha Pheng
The present study aims to examine the effect of tropical temperatures on autonomic nervous activity in Cambodian dairy cattle by analyzing heart rate variability (HRV). Holter-type electrocardiograms were recorded in adult crossbred cows (Cambodian native × Holstein) either in a sheltered area or under direct sunlight. Rectal temperatures and heart rates increased in animals under direct sunlight as compared to those in the shelter. The power spectral analysis of HRV revealed that three out of the five cows studied underwent a decrease in parasympathetic nervous activity under direct sunlight with the remaining two cows showing no apparent change...
December 11, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/29225214/noradrenergic-effects-in-rat-sacral-autonomic-nucleus-using-in-vitro-slice-patch-clamp-recordings
#13
Masahiro Kawatani, Nozomi Akimoto, Akihiro Yamada, Hidemasa Furue, Masahito Kawatani
Noradrenergic modulation has been frequently discussed in the context of neural activities that are related to pelvic organs. The sacral preganglionic nucleus (SPN) is a spinal nucleus containing parasympathetic preganglionic neurons that send fibers to pelvic nerves. In spite of the abundant presence of noradrenergic fibers around the SPN, the effects of noradrenaline (NA) remain obscure. To explore this issue, NA (50 μM) was applied to parasympathetic preganglionic neurons in the SPN during whole-cell patch clamp recording...
2017: Biomedical Research
https://www.readbyqxmd.com/read/29225140/reactive-astrocytes-in-alzheimer-s-disease-a-double-edged-sword
#14
REVIEW
Heejung Chun, C Justin Lee
Alzheimer's disease (AD) is a chronic and fatal disease, in which neuronal damage at its late stage cannot be easily reversed. Because AD progression is caused by multiple factors including diverse cellular processes, studies on AD pathogenesis at the molecular and cellular level are challenging. Based on the lessons from unsuccessful neuron-focused research for an AD cure, non-cell autonomous mechanisms including brain inflammation and reactive astrocytes have recently been in the spotlight as potential therapeutic targets for AD...
December 7, 2017: Neuroscience Research
https://www.readbyqxmd.com/read/29224782/mfd-dynamically-regulates-transcription-via-a-release-and-catch-up-mechanism
#15
Tung T Le, Yi Yang, Chuang Tan, Margaret M Suhanovsky, Robert M Fulbright, James T Inman, Ming Li, Jaeyoon Lee, Sarah Perelman, Jeffrey W Roberts, Alexandra M Deaconescu, Michelle D Wang
The bacterial Mfd ATPase is increasingly recognized as a general transcription factor that participates in the resolution of transcription conflicts with other processes/roadblocks. This function stems from Mfd's ability to preferentially act on stalled RNA polymerases (RNAPs). However, the mechanism underlying this preference and the subsequent coordination between Mfd and RNAP have remained elusive. Here, using a novel real-time translocase assay, we unexpectedly discovered that Mfd translocates autonomously on DNA...
November 30, 2017: Cell
https://www.readbyqxmd.com/read/29224457/treatment-of-vincristine-induced-ileus-with-metoclopramide-a-case-report
#16
Hamidreza T Masoumi, Molouk Hadjibabaie, Morvarid Zarif-Yeganeh, Behrouz Khajeh, Ardeshir Ghavamzadeh
Introduction Acute lymphoblastic leukemia is an invasive malignancy which ought to be treated with several cytotoxic medications. Vincristine-based regimen is among the most commonly used regimens for the treatment of adult acute lymphoblastic leukemia. Peripheral neuropathy caused by vincristine provides a limitation in dose administration and can influence the treatment outcome and patient's quality of life. Case presentation Ileus and constipation occurred as a result of autonomic neuropathy in a 58-year-old man who underwent vincristine-based regimen for acute lymphoblastic leukemia treatment...
January 1, 2017: Journal of Oncology Pharmacy Practice
https://www.readbyqxmd.com/read/29224103/sex-differences-and-role-of-estradiol-in-hypoglycemia-associated-counter-regulation
#17
Karen P Briski, Hussain N Alhamami, Ayed Alshamrani, Santosh K Mandal, Manita Shakya, Mostafa H H Ibrahim
Vital nerve cell functions, including maintenance of transmembrane voltage and information transfer, occur at high energy expense. Inadequate provision of the obligate metabolic fuel glucose exposes neurons to risk of dysfunction or injury. Clinical hypoglycemia rarely occurs in nondiabetic individuals but is an unfortunate regular occurrence in patients with type 1 or advanced insulin-treated type 2 diabetes mellitus. Requisite strict glycemic control, involving treatment with insulin, sulfonylureas, or glinides, can cause frequent episodes of iatrogenic hypoglycemia due to defective counter-regulation, including reduced glycemic thresholds and diminished magnitude of motor responses...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29224089/cellular-mechanisms-driving-sex-differences-in-adipose-tissue-biology-and-body-shape-in-humans-and-mouse-models
#18
Kalypso Karastergiou, Susan K Fried
Sex differences in adipose tissue distribution and the metabolic, endocrine, and immune functions of different anatomical fat depots have been described, but they are incompletely documented in the literature. It is becoming increasingly clear that adipose depots serve distinct functions in males and females and have specific physiological roles. However, the mechanisms that regulate the size and function of specific adipose tissues in men and women remain poorly understood. New insights from mouse models have advanced our understanding of depot differences in adipose growth and remodeling via the proliferation and differentiation of adipose progenitors that can expand adipocyte number in the tissue or simply replace dysfunctional older and larger adipocytes...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29223951/heart-rate-variability-in-bipolar-disorder-and-borderline-personality-disorder-a-clinical-review
#19
REVIEW
Oliver Carr, Maarten de Vos, Kate E A Saunders
Heart rate variability (HRV) in psychiatric disorders has become an increasing area of interest in recent years following technological advances that enable non-invasive monitoring of autonomic nervous system regulation. However, the clinical interpretation of HRV features remain widely debated or unknown. Standardisation within studies of HRV in psychiatric disorders is poor, making it difficult to reproduce or build on previous work. Recently, a Guidelines for Reporting Articles on Psychiatry and Heart rate variability checklist has been proposed to address this issue...
December 9, 2017: Evidence-based Mental Health
https://www.readbyqxmd.com/read/29223653/effects-of-cardiac-rehabilitation-on-heart-rate-recovery-of-patients-undergoing-a-cardiac-rehabilitation-programme-after-acute-coronary-syndrome
#20
Tiffany Astolfi, Fabio Borrani, Milos Savcic, Vincent Gremeaux, Grégoire P Millet
BACKGROUND: An efficient cardiac rehabilitation programme (CRP) can improve the functional ability of patients after acute coronary syndrome (ACS). OBJECTIVE: To examine the effect of a CRP on parasympathetic reactivation and heart rate recovery (HRR) measured after a 6-min walk test (6MWT), and correlation with 6MWT distance and well-being after ACS. METHODS: Eleven normoweight patients after ACS (BMI < 25kg/m2; 10 males; mean [SD] age 61 [9] years) underwent an 8-week CRP...
December 6, 2017: Annals of Physical and Rehabilitation Medicine
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