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Articles 31 - 43 of 43
Full-Text Articles in Medicine and Health Sciences
Vestibular Activation Habituates The Vasovagal Response In The Rat, Bernard Cohen, Giorgio P. Martinelli, Yongqing Xiang, Theodore Raphan, Sergei B. Yakushin
Vestibular Activation Habituates The Vasovagal Response In The Rat, Bernard Cohen, Giorgio P. Martinelli, Yongqing Xiang, Theodore Raphan, Sergei B. Yakushin
Publications and Research
Vasovagal syncope is a significant medical problem without effective therapy, postulated to be related to a collapse of baroreflex function. While some studies have shown that repeated static tilts can block vasovagal syncope, this was not found in other studies. Using anesthetized, male Long–Evans rats that were highly susceptible to generation of vasovagal responses, we found that repeated activation of the vestibulosympathetic reflex (VSR) with ±2 and ±3 mA, 0.025 Hz sinusoidal galvanic vestibular stimulation (sGVS) caused incremental changes in blood pressure (BP) and heart rate (HR) that blocked further generation of vasovagal responses. Initially, BP and HR fell ≈20–50 …
Beta Oscillatory Changes And Retention Of Motor Skills During Practice In Healthy Subjects And In Patients With Parkinson’S Disease, Aaron B. Nelson, Clara Moisello, Jing Lin, Priya Panday, Serena Ricci, Andrea Canessa, Alessandro Di Rocco, Angelo Quartarone, Giuseppe Frazzitta, Ioannis U. Isaias, Giulio Tononi, Chiara Cirelli, M. Felice Ghilardi
Beta Oscillatory Changes And Retention Of Motor Skills During Practice In Healthy Subjects And In Patients With Parkinson’S Disease, Aaron B. Nelson, Clara Moisello, Jing Lin, Priya Panday, Serena Ricci, Andrea Canessa, Alessandro Di Rocco, Angelo Quartarone, Giuseppe Frazzitta, Ioannis U. Isaias, Giulio Tononi, Chiara Cirelli, M. Felice Ghilardi
Publications and Research
Recently we found that modulation depth of beta power during movement increases with practice over sensory-motor areas in normal subjects but not in patients with Parkinson’s disease (PD). As such changesmight reflect use-dependentmodifications, we concluded that reduction of beta enhancement in PD represents saturation of cortical plasticity. A few questions remained open: What is the relation between these EEG changes and retention of motor skills? Would a second task exposure restore beta modulation enhancement in PD? Do practice-induced increases of beta modulation occur within each block? We thus recorded EEG in patients with PD and age-matched controls in two consecutive …
Remodeling Brain Activity By Repetitive Cervicothoracic Transspinal Stimulation After Human Spinal Cord Injury, Lynda M. Murray, Maria Knikou
Remodeling Brain Activity By Repetitive Cervicothoracic Transspinal Stimulation After Human Spinal Cord Injury, Lynda M. Murray, Maria Knikou
Publications and Research
Interventions that can produce targeted brain plasticity after human spinal cord injury (SCI) are needed for restoration of impaired movement in these patients. In this study, we tested the effects of repetitive cervicothoracic transspinal stimulation in one person with cervical motor incomplete SCI on cortical and corticospinal excitability, which were assessed via transcranial magnetic stimulation with paired and single pulses, respectively. We found that repetitive cervicothoracic transspinal stimulation potentiated intracortical facilitation in flexor and extensor wrist muscles, recovered intracortical inhibition in the more impaired wrist flexor muscle, increased corticospinal excitability bilaterally, and improved voluntary muscle strength. These effects may have …
A Mendelian Randomization Study Of The Effect Of Calcium On Coronary Artery Disease, Myocardial Infarction And Their Risk Factors, Lin Xu, Shi Lin Lin, C. Mary Schooling
A Mendelian Randomization Study Of The Effect Of Calcium On Coronary Artery Disease, Myocardial Infarction And Their Risk Factors, Lin Xu, Shi Lin Lin, C. Mary Schooling
Publications and Research
Meta-analyses of randomized controlled trials (RCTs) suggest calcium could have adverse effects on cardiovascular disease, although these findings are controversial. To clarify, we assessed whether people with genetically higher calcium had a higher risk of coronary artery disease (CAD), myocardial infarction (MI) and their risk factors. We used a two-sample Mendelian randomization study. We identified genetic variants (single nucleotide polymorphisms (SNPs)) that independently contributed to serum calcium at genome-wide significance which we applied to large extensively genotyped studies of CAD, MI, diabetes, lipids, glycaemic traits and adiposity to obtain unconfounded estimates, with body mass index (BMI) as a control outcome. …
Impact Of Cannabis Use On Treatment Outcomes Among Adults Receiving Cognitive-Behavioral Treatment For Ptsd And Substance Use Disorders, Lesia M. Ruglass, Alina Shevorykin, Vanja Radoncic, Kathryn M. Z. Smith, Philip H. Smith, Isaac R. Galatzer-Levy, Santiago Papini, Denise A. Hien
Impact Of Cannabis Use On Treatment Outcomes Among Adults Receiving Cognitive-Behavioral Treatment For Ptsd And Substance Use Disorders, Lesia M. Ruglass, Alina Shevorykin, Vanja Radoncic, Kathryn M. Z. Smith, Philip H. Smith, Isaac R. Galatzer-Levy, Santiago Papini, Denise A. Hien
Publications and Research
Background: Research has demonstrated a strong link between trauma, posttraumatic stress disorder (PTSD) and substance use disorders (SUDs) in general and cannabis use disorders in particular. Yet, few studies have examined the impact of cannabis use on treatment outcomes for individuals with co-occurring PTSD and SUDs. Methods: Participants were 136 individuals who received cognitive-behavioral therapies for co-occurring PTSD and SUD. Multivariate regressions were utilized to examine the associations between baseline cannabis use and end-of-treatment outcomes. Multilevel linear growth models were fit to the data to examine the cross-lagged associations between weekly cannabis use and weekly PTSD symptom severity and primary …
A Novel Microrna-1207-3p/Fndc1/Fn1/Ar Regulatory Pathway In Prostate Cancer, Dibash K. Das, Olorunseun O. Ogunwobi
A Novel Microrna-1207-3p/Fndc1/Fn1/Ar Regulatory Pathway In Prostate Cancer, Dibash K. Das, Olorunseun O. Ogunwobi
Publications and Research
Prostate cancer (PCa) is the second most common cause of cancer-specific deaths in the U.S. Unfortunately, the underlying molecular mechanisms for its development and progression remain unclear. Studies have established that microRNAs (miRNAs) are dysregulated in PCa. The intron-derived microRNA-1207-3p (miR-1207-3p) is encoded at the non-protein coding gene locus PVT1 on the 8q24 human chromosomal region, an established PCa susceptibility locus. However, miR-1207-3p in PCa had not previously been investigated. Therefore, we explored if miR-1207-3p plays any regulatory role in PCa. We discovered that miR-1207-3p is significantly underexpressed in PCa cell lines in comparison to normal prostate epithelial cells, and …
Protein Calorie Malnutrition, Nutritional Intervention And Personalized Cancer Care, Anju Gangadharan, Sung-Eun Choi, Ahmed Hassan, Nehad M. Ayoub, Gina Durante, Sakshi Balwani, Young Hee Kim, Andrew Pecora, Andre Goy, K. Stephen Suh
Protein Calorie Malnutrition, Nutritional Intervention And Personalized Cancer Care, Anju Gangadharan, Sung-Eun Choi, Ahmed Hassan, Nehad M. Ayoub, Gina Durante, Sakshi Balwani, Young Hee Kim, Andrew Pecora, Andre Goy, K. Stephen Suh
Publications and Research
Cancer patients often experience weight loss caused by protein calorie malnutrition (PCM) during the course of the disease or treatment. PCM is expressed as severe if the patient has two or more of the following characteristics: obvious significant muscle wasting, loss of subcutaneous fat; nutritional intake of <50% of recommended intake for 2 weeks or more; bedridden or otherwise significantly reduced functional capacity; weight loss of >2% in 1 week, 5% in 1 month, or 7.5% in 3 months. Cancer anorexiacachexia syndrome (CACS) is a multifactorial condition of advanced PCM associated with underlying illness (in this case cancer) and is characterized by loss of muscle with or without loss of fat mass. Cachexia is defined as weight loss of …50%>
The Effects Of Asking A Fertility Intention Question In Primary Care Settings: A Systematic Review Protocol, Paul A. Henning, Carolyne K. Burgess, Heidi E. Jones, Wendy V. Norman
The Effects Of Asking A Fertility Intention Question In Primary Care Settings: A Systematic Review Protocol, Paul A. Henning, Carolyne K. Burgess, Heidi E. Jones, Wendy V. Norman
Publications and Research
Background: Planning for pregnancy has been associated with reduced unwanted pregnancies and improved pregnancy outcomes. Despite the benefits of planned pregnancy, there are no guideline recommendations on routine counseling regarding pregnancy intention in primary care settings. The objective of the systematic review is to determine the effectiveness of incorporating questions of pregnancy intention into primary care.
Methods: A systematic search of the literature will be conducted for any studies comparing questions of pregnancy intention in primary care settings with no intervention or a control intervention. Types of studies will include randomized controlled trials, non-randomized trials, and observation studies. Participants …
Identification, Validation, And Targeting Of The Mutant P53- Parp-Mcm Chromatin Axis In Triple Negative Breast Cancer, Wei-Gang Qiu, Alla Polotskaia, Gu Xiao, Lia Di, Yuhan Zhao, Wenwei Hu, John Philip, Ronald C. Hendrickson, Jill Bargonetti
Identification, Validation, And Targeting Of The Mutant P53- Parp-Mcm Chromatin Axis In Triple Negative Breast Cancer, Wei-Gang Qiu, Alla Polotskaia, Gu Xiao, Lia Di, Yuhan Zhao, Wenwei Hu, John Philip, Ronald C. Hendrickson, Jill Bargonetti
Publications and Research
Over 80% of triple negative breast cancers express mutant p53. Mutant p53 often gains oncogenic function suggesting that triple negative breast cancers may be driven by p53 protein type. To determine the chromatin targets of this gain-of-function mutant p53 we used inducible knockdown of endogenous gain-of-function mtp53 in MDA-MB-468 cells in conjunction with stable isotope labeling with amino acids in cell culture and subcellular fractionation. We sequenced over 70,000 total peptides for each corresponding reciprocal data set and were able to identify 3010 unique cytoplasmic fraction proteins and 3403 unique chromatin fraction proteins. The present proteomics experiment corroborated our previous …
Persistent Amygdala Novelty Response Is Associated With Less Anterior Cingulum Integrity In Trauma-Exposed Women, Seungyeon A. Yoon, Mariann R. Weierich
Persistent Amygdala Novelty Response Is Associated With Less Anterior Cingulum Integrity In Trauma-Exposed Women, Seungyeon A. Yoon, Mariann R. Weierich
Publications and Research
Objectives: We investigated the potential role of cingulum and uncinate fasciculus integrity in trauma-related neural hypervigilance, indexed by less discrimination between amygdala activation to novel and familiar affective images.
Participants: 22 women (mean age 21.7 ± 3.9 years) with a history of trauma, and 20 no-trauma controls (mean age 21.9 ± 4.8 years).
Measures: Trauma exposure and trauma-related symptoms were assessed during structured clinical interview. White matter integrity in the anterior cingulum, parahippocampal cingulum, and uncinate fasciculus was measured using diffusion weighted imaging. Amygdala response to novel and familiar affective scenes was measured with functional magnetic resonance imaging.
Results: Trauma-exposed …
Cerebellar Tdcs: A Novel Approach To Augment Language Treatment Post-Stroke, Rajani Sebastian, Sadhvi Saxena, Kyrana Tsapkini, Andreia V. Faria, Charltien Long, Amy Wright, Cameron Davis, Donna C. Tippett, Antonios P. Mourdoukoutas, Marom Bikson, Pablo Celnik, Argye E. Hillis
Cerebellar Tdcs: A Novel Approach To Augment Language Treatment Post-Stroke, Rajani Sebastian, Sadhvi Saxena, Kyrana Tsapkini, Andreia V. Faria, Charltien Long, Amy Wright, Cameron Davis, Donna C. Tippett, Antonios P. Mourdoukoutas, Marom Bikson, Pablo Celnik, Argye E. Hillis
Publications and Research
People with post-stroke aphasia may have some degree of chronic deficit for which current rehabilitative treatments are variably effective. Accumulating evidence suggests that transcranial direct current stimulation (tDCS) may be useful for enhancing the effects of behavioral aphasia treatment. However, it remains unclear which brain regions should be stimulated to optimize effects on language recovery. Here, we report on the therapeutic potential of right cerebellar tDCS in augmenting language recovery in SMY, who sustained bilateral MCA infarct resulting in aphasia and anarthria. We investigated the effects of 15 sessions of anodal cerebellar tDCS coupled with spelling therapy using a randomized, …
Updating Temporal Expectancy Of An Aversive Event Engages Striatal Plasticity Under Amygdala Control, Glenn Dallérac, Michael Graupner, Jeroen Knippenberg, Raquel Chacon Ruiz Martinez, Tatiane Ferreira Tavares, Lucille Tallot, Nicole El Massioui, Anna Verschueren, Sophie Höhn, Julie Boulanger Bertolus, Alex D. Reyes, Joseph E. Ledoux, Glenn E. Schafe, Lorenzo Diaz-Mataix, Valérie Doyère
Updating Temporal Expectancy Of An Aversive Event Engages Striatal Plasticity Under Amygdala Control, Glenn Dallérac, Michael Graupner, Jeroen Knippenberg, Raquel Chacon Ruiz Martinez, Tatiane Ferreira Tavares, Lucille Tallot, Nicole El Massioui, Anna Verschueren, Sophie Höhn, Julie Boulanger Bertolus, Alex D. Reyes, Joseph E. Ledoux, Glenn E. Schafe, Lorenzo Diaz-Mataix, Valérie Doyère
Publications and Research
Pavlovian aversive conditioning requires learning of the association between a conditioned stimulus (CS) and an unconditioned, aversive stimulus (US) but also involves encoding the time interval between the two stimuli. The neurobiological bases of this time interval learning are unknown. Here, we show that in rats, the dorsal striatum and basal amygdala belong to a common functional network underlying temporal expectancy and learning of a CS–US interval. Importantly, changes in coherence between striatum and amygdala local field potentials (LFPs) were found to couple these structures during interval estimation within the lower range of the theta rhythm (3–6 Hz). Strikingly, we …
Research Methods In Occupational Health Psychology, Irvin Sam Schonfeld, Chu-Hsiang Chang
Research Methods In Occupational Health Psychology, Irvin Sam Schonfeld, Chu-Hsiang Chang
Publications and Research
http://www.springerpub.com/occupational-health-psychology.html
Occupational Health Psychology (OHP) is a rapidly expanding interdisciplinary field that focuses on the science and practice of psychology in promoting and developing workplace health- and safety-related initiatives. This comprehensive text for undergraduate and graduate survey courses is the first to encompass a wide range of key issues in OHP. It draws from the domains of psychology, public health, preventive medicine,nursing, industrial engineering, law, and epidemiology to focus on the theory and practice of protecting and promoting the health, well-being, and safety of individuals in the workplace and improving the quality of work life.
The text addresses key psychosocial …