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Mladjan Protic, Radovan Veljkovic, Anton J Bilchik, Ana Popovic, Milana Kresoja, Aviram Nissan, Itzhak Avital, Alexander Stojadinovic
BACKGROUND: Various mechanisms, including somatic and visceral nociceptive stimulation, have been suggested as a cause for pain after laparoscopic cholecystectomy (LC). We therefore conducted a prospective randomized controlled trial (PRCT) to evaluate whether somatovisceral pain blockade reduces pain after LC. HYPOTHESIS: Analgesic efficacy of multimodal analgesia is superior to standard analgesia for patients undergoing elective LC for symptomatic cholelithiasis...
June 20, 2016: Surgical Endoscopy
Christin Burgdorf, Constanze Rinn, Gerhard Stemmler
Neurobiological research suggests there are discrete emotion systems, which are based on separate neural pathways with specific neurotransmitters (i.e., oxytocin, opioids). So far, autonomic regulation patterns of different positive emotions could not be unambiguously characterized. Warmth-liking, as an emotion system, is activated during interpersonal interactions and close relationships. We postulated that warmth-liking has a specific somatovisceral signature, which is, however, qualified by individual differences in personality and attachment style...
June 1, 2016: Journal of Comparative Neurology
Liliana L Luz, Elisabete C Fernandes, Miklos Sivado, Eva Kokai, Peter Szucs, Boris V Safronov
Referred pain is a phenomenon of feeling pain at a site other than the site of the painful stimulus origin. It arises from a pathological mixing of nociceptive processing pathways for visceral and somatic inputs. Despite numerous studies based on unit recordings from spinal and supraspinal neurons, the exact mechanism and site of this mixing within the central nervous system are not known. Here, we selectively recorded from lamina I neurons, using a visually guided patch-clamp technique, in thoracic spinal cord preparation with preserved intercostal (somatic) and splanchnic (visceral) nerves...
October 2015: Pain
Marc-André Blanchette, Michèle Rivard, Clermont E Dionne, J David Cassidy
OBJECTIVE: The purpose of this study was to identify characteristics of Canadian doctors of chiropractic (DCs) associated with the number of patients referred by medical doctors (MDs). METHODS: Secondary data analyses were performed on the 2011 cross-sectional survey of the Canadian Chiropractic Resources Databank. The Canadian Chiropractic Resources Databank survey included 81 questions about the practice of DCs. Of the 6533 mailed questionnaires, 2529 (38.7%) were returned and 489 did not meet our inclusion criteria...
July 2015: Journal of Manipulative and Physiological Therapeutics
Murray R Berkowitz
Psychosis is a rare initial presentation of new-onset hypothyroidism. The author describes the case of a 29-year-old woman who presented with psychosis caused by hypothyroidism, or myxedema madness. Although the patient's psychosis resolved after standard monotherapy using levothyroxine sodium, her hypothyroidism persisted. Imaging of the patient's cervical spine showed that previous C5-C6 and C6-C7 fusions had failed. The failed fusions were corrected, and the patient's hypothyroidism resolved, suggesting that the somatovisceral reflex was the cause of the patient's hypothyroidism...
January 2015: Journal of the American Osteopathic Association
Theresa Monaco Spitznagle, Caitlin McCurdy Robinson
Individuals with pelvic pain commonly present with complaints of pain located anywhere below the umbilicus radiating to the top of their thighs or genital region. The somatovisceral convergence that occurs within the pelvic region exemplifies why examination of not only the organs but also the muscles, connective tissues (fascia), and neurologic input to the region should be performed for women with pelvic pain. The susceptibility of the pelvic floor musculature to the development of myofascial pain has been attributed to unique functional demands of this muscle...
September 2014: Obstetrics and Gynecology Clinics of North America
Jonas Chatel-Goldman, Marco Congedo, Christian Jutten, Jean-Luc Schwartz
Interpersonal touch is of paramount importance in human social bonding and close relationships, allowing a unique channel for affect communication. So far the effect of touch on human physiology has been studied at an individual level. The present study aims at extending the study of affective touch from isolated individuals to truly interacting dyads. We have designed an ecological paradigm where romantic partners interact only via touch and we manipulate their empathic states. Simultaneously, we collected their autonomic activity (skin conductance, pulse, respiration)...
2014: Frontiers in Behavioral Neuroscience
Leonardo Rios Diniz, Jacson Nesi, Ana Christina Curi, Wagner Martins
CONTEXT: Gastroesophageal reflux disease (GERD) is a chronic condition that affects a growing number of people and is currently among the most common disorders seen in clinical practice. OBJECTIVE: To develop a protocol for the management of GERD with osteopathic manipulative therapy (OMTh) applied to the diaphragm and esophagus, and to evaluate the protocol's effectiveness using the quality of life scale (QS-GERD) for the disease. METHODS: In this single-blinded prospective study, an OMTh protocol focusing on the diaphragm and esophagus was applied to a single patient, who had received a diagnosis of GERD 4 years previously...
March 2014: Journal of the American Osteopathic Association
Robyn Migliorini, Jennifer L Stewart, April C May, Susan F Tapert, Martin P Paulus
BACKGROUND: Altered interoception, i.e., processing of stimuli from inside the body, has been considered an important component of drug-taking behavior. However, approaches to examine interoceptive sensitivity in humans have been limited. This study examined the hypothesis that adolescents with substance use disorder show altered interoceptive processing, measured by stimulating mechano-receptive C-fibers (MR-CF) via soft touch. METHODS: Adolescents with substance use disorders (SUD, n=15) and comparison youth (CON, n=17) underwent functional magnetic resonance imaging (fMRI) during anticipation or reception of a positively valenced "Soft Touch" consisting of MR-CF stimulation to the palm or forearm...
December 1, 2013: Drug and Alcohol Dependence
Jae Hong Park, Chang-Eop Kim, Jaewoo Shin, Changkyun Im, Chin Su Koh, In Seok Seo, Sang Jeong Kim, Hyung-Cheul Shin
OBJECTIVE: Chronic monitoring of the state of the bladder can be used to notify patients with urinary dysfunction when the bladder should be voided. Given that many spinal neurons respond both to somatic and visceral inputs, it is necessary to extract bladder information selectively from the spinal cord. Here, we hypothesize that sensory information with distinct modalities should be represented by the distinct ensemble activity patterns within the neuronal population and, therefore, analyzing the activity patterns of the neuronal population could distinguish bladder fullness from somatic stimuli...
October 2013: Journal of Neural Engineering
Chun-Yen Chen, Rey-Shyong Chern, Ming-Huei Liao, Yung-Hsien Chang, Jung-Yu C Hsu, Chi-Hsien Chien
Somatovisceral reflex suggested that the somatic stimulation could affect visceral function like acupuncture which treats diseases by stimulating acupoints. The neuronal connection between somatic point and visceral organ was not clear. Uterine pain referred to the groin region has long been recognized clinically. Wesselmann, using neurogenic plasma extravasation method, showed that uterine pain was referred to the groin region through a neuronal mechanism (Wesselmann and Lai 1997). This connection could be considered through the somatovisceral reflex pathway...
2013: Evidence-based Complementary and Alternative Medicine: ECAM
Mark S Cooper, Vincent P Clark
Complex Regional Pain Syndrome (CRPS) is associated with non-dermatomal patterns of pain, unusual movement disorders, and somatovisceral dysfunctions. These symptoms are viewed by some neurologists and psychiatrists as being psychogenic in origin. Recent evidence, however, suggests that an autoimmune attack on self-antigens found in the peripheral and central nervous system may underlie a number of CRPS symptoms. From both animal and human studies, evidence is accumulating that neuroinflammation can spread, either anterograde or retrograde, via axonal projections in the CNS, thereby establishing neuroinflammatory tracks and secondary neuroinflammatory foci within the neuraxis...
June 2013: Journal of Neuroimmune Pharmacology: the Official Journal of the Society on NeuroImmune Pharmacology
Laura Müller-Pinzler, Frieder M Paulus, Gerhard Stemmler, Sören Krach
We studied the somatovisceral response pattern of vicarious embarrassment for someone else's inappropriate condition. Participants (N=54) were confronted with hand-drawn sketches depicting public situations and were instructed to rate the intensity of their vicarious embarrassment. The inappropriate condition varied according to the attribution of intentionality (absent/present) and awareness (absent/present). Irrespective of these attributions, participants reported stronger vicarious embarrassment in comparison to neutral situations...
October 2012: International Journal of Psychophysiology
Ian P Johnson
BACKGROUND: Hypotheses on somatovisceral dysfunction often assume interference by stretch or compression of the nerve supply to visceral structures. The purpose of this study is to examine the potential of pelvic visceral movement to create tension of the loose connective tissue that contains the fine branches of the inferior hypogastric nerve plexus. METHODS: Twenty eight embalmed human cadavers were examined. Pelvic visceral structures were displaced by very gentle 5 N unidirectional tension and the associated movement of the endopelvic fascia containing the inferior hypogastric plexus that this caused was measured...
2012: Chiropractic & Manual Therapies
Donna Hoffman
Patients presenting with chronic pelvic pain frequently complain of multiple symptoms that appear to involve more than one organ system, creating diagnostic confusion. The multisymptom presentation of chronic pelvic pain has been frequently described. This article describes four proposed explanations for the clinical observation of multisymptom presentations of patients with chronic pelvic pain. These include the concepts of viscerovisceral convergence; viscerosomatic convergence; hypertonicity of pelvic floor muscles creating visceral symptoms along with somatovisceral convergence; and central sensitization with expansion of receptive fields...
October 2011: Current Pain and Headache Reports
Ke Ren, Ronald Dubner
Previous studies have established the role of the medullary dorsal horn or the subnucleus caudalis of the spinal trigeminal complex, a homolog of the dorsal horn of the spinal cord, in trigeminal pain processing. In addition to the medullary dorsal horn, recent studies have pointed out increased excitability and sensitization of trigeminal interpolaris and caudalis transition zone (Vi/Vc) following deep orofacial injury, involving neuron-glia-cytokine interactions. The Vi/Vc transition zone accesses rostral brain regions that are important for descending pain modulation, and somatovisceral and somatoautonomic processing and plays a unique role in coordinating trigeminal nocifensive responses...
2011: International Review of Neurobiology
R Foster, J Jung, A Farooq, C McClung, M S Ripsch, M P Fitzgerald, F A White
Visceral sensory afferents during disease or following injury often produce vague, diffuse body sensations, and pain referred to somatic targets. Alternatively, injury due to trauma or disease of somatic nerve targets can also lead to referred pain in visceral targets via a somatovisceral reflex. Both phenomenons are thought to be due to convergence of visceral and somatic afferents within the spinal cord. To investigate a potential peripheral influence for referred pain in visceral targets following somatic nerve injury, we examined whether a sciatic nerve injury known to produce hindpaw tactile hyperalgesia alters the frequency of micturition and the sensitivity of bladder-associated sensory neurons to pro-nociceptive chemokines...
June 2, 2011: Neuroscience
Asli Demirtas-Tatlidede, Catarina Freitas, Alvaro Pascual-Leone, Jeremy D Schmahmann
Clinical and functional imaging studies suggest that the cerebellar vermis is involved in the regulation of a range of nonsomatic functions including cardiovascular control, thirst, feeding behavior, and primal emotions. Cerebello-hypothalamic circuits have been postulated to be a potential neuroanatomical substrate underlying this modulation. We tested this putative relationship between the cerebellar vermis and nonsomatic functions by stimulating the cerebellum noninvasively via neuronavigated transcranial magnetic stimulation...
September 2011: Cerebellum
Tatjana Aue, Klaus R Scherer
In the emotion literature, appraisals of an event's pleasantness and goal conduciveness are often considered as interchangeable and subsumed under the term valence. Some appraisal theories, however, emphasize that there is a conceptual difference between these two appraisals. With the current study, we investigated whether such a conceptual difference would be reflected in different somatovisceral response profiles for intrinsic pleasantness and goal conduciveness. Participants viewed unpleasant and pleasant pictures (intrinsic pleasantness) and performed either goal conducive (i...
January 2011: Biological Psychology
Tim Morthland, Nicholas S Cote, Jon Humphrey, Doug Fulk
Physical findings demarking pathologic somatovisceral reflex activity and fascial strain patterns may lead the osteopathic physician to diagnoses that are masked within the initial presentation of a patient. The authors present a case report that demonstrates the use of osteopathic principles in the diagnosis of a chronic acetabular fracture and acetabular labral tear in a 19-year-old man. The injuries resulted from a posterior hip dislocation sustained during a basketball game more than 1 year before presentation...
May 2010: Journal of the American Osteopathic Association
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