170 research outputs found
Efecto del tratamiento fisioterápico en la activación autónoma y la percepción del dolor en pacientes varones con lumbalgia subaguda inespecífica
Introduction: Physiotherapy treatment is a common intervention for low back pain (LBP)
patients. These interventions have been related to physiological effects in the central nervous system.
Thus, the aim of this study was to analyze the effect of physiotherapy treatment in patients with LBP
in the autonomic nervous system activation and subjective pain perception of patients. Methods:
A total of 30 male subjects diagnosed with non-specific subacute LBP received a 50 min session
consisting of (a) a manual therapy based on joint mobilization and soft tissues techniques in the
lumbo-pelvic area, (b) a stretching program, and (c) motor control exercises of the core muscles. The
autonomic modification of participants was assessed prior to and after the physiotherapy treatment.
Results: Heart rate variability (HRV) analysis reported a significant increase in average RR (p = 0.001),
RMSSD (p = 0.008), LRMSSD (p = 0.001), SDNN (p = 0.005), and PNN50 (p = 0.024) after the session.
Frequency-domain measures showed a significant increase in LF (p = 0.030) and HF (p = 0.014),
and a decrease in LF/HF ratio (p = 0.046). A significant decrease was found in minimum HR
values (p = 0.001) and average HR (p = 0.001). Moreover, maximal HR decreased its value from
116.7 ± 26.1 to 113.7 ± 40.8 after intervention. In addition, subjective pain perception (VAS scores)
was significantly lower (p = 0.001) in the post-session assessment. Conclusions: Physiotherapy
treatment produced an increase in parasympathetic nervous system activation and a decrease in
subjective pain perception in non-specific subacute LBP patients.Introducción: El tratamiento de fisioterapia es una intervención común para el dolor lumbar (LBP)
pacientes. Estas intervenciones se han relacionado con efectos fisiológicos en el sistema nervioso central.
Así, el objetivo de este estudio fue analizar el efecto del tratamiento de fisioterapia en pacientes con dolor lumbar
en la activación del sistema nervioso autónomo y la percepción subjetiva del dolor de los pacientes. Métodos:
Un total de 30 sujetos masculinos diagnosticados con dolor lumbar subagudo inespecífico recibieron una sesión de 50 minutos
consistente en (a) una terapia manual basada en técnicas de movilización articular y tejidos blandos en el
área lumbo-pélvica, (b) un programa de estiramiento y (c) ejercicios de control motor de los músculos centrales. La
La modificación autonómica de los participantes se evaluó antes y después del tratamiento de fisioterapia.
Resultados: el análisis de variabilidad de la frecuencia cardíaca (VFC) informó un aumento significativo en el RR promedio (p = 0,001),
RMSSD (p = 0,008), LRMSSD (p = 0,001), SDNN (p = 0,005) y PNN50 (p = 0,024) después de la sesión.
Las medidas en el dominio de la frecuencia mostraron un aumento significativo en LF (p = 0.030) y HF (p = 0.014),
y una disminución en la relación LF / HF (p = 0.046). Se encontró una disminución significativa en la FC mínima
valores (p = 0,001) y FC media (p = 0,001). Además, la FC máxima disminuyó su valor de
116,7 ± 26,1 a 113,7 ± 40,8 después de la intervención. Además, la percepción subjetiva del dolor (puntuaciones EVA)
fue significativamente menor (p = 0,001) en la evaluación posterior a la sesión. Conclusiones: fisioterapia
El tratamiento produjo un aumento en la activación del sistema nervioso parasimpático y una disminución en
percepción subjetiva del dolor en pacientes con dolor lumbar subagudo inespecífico
Life-threatening acute acalculous cholecystitis in a patient with renal cell carcinoma treated by sunitinib: a case report
<p>Abstract</p> <p>Introduction</p> <p>Sunitinib, an oral multitargeted tyrosine kinase inhibitor, is widely used in the treatment of renal cell carcinoma and gastrointestinal stromal tumor and has had a variety of adverse events. However, sunitinib-related acute cholecystitis has been reported in only two patients with gastrointestinal stromal tumor and renal cell carcinoma (clear cell subtype).</p> <p>Case presentation</p> <p>A 75-year-old Japanese woman with a right sided abdominal swelling was referred to our hospital. Computed tomography (CT) showed a hypervascular bulky tumor in her right kidney, suggesting right renal cell carcinoma in clinical T4N0M0. Although sunitinib therapy was started as neoadjuvant chemotherapy, during the fourth week of the first cycle, she developed acute acalculous cholecystitis and disseminated intravascular coagulation associated with sunitinib. Sunitinib therapy was discontinued immediately and she recovered after subsequent treatment with antibiotics and gabexate mesilate followed by percutaneous cholecystostomy. Cholecystectomy and right radical nephrectomy were performed and pathological examination showed that her renal tumor was a chromophobe renal cell carcinoma (pT2) with necrosis. Inflammation and ischemia were observed in the gallbladder wall, which was compatible with acute acalculous cholecystitis. There has been no evidence of disease recurrence for more than six months.</p> <p>Conclusion</p> <p>We described the third case of sunitinib-related acute cholecystitis in a patient with chromophobe renal cell carcinoma. Attention is required to sunitinib-related acute cholecystitis which, while uncommon, could be life-threatening.</p
An expression atlas of chemosensory ionotropic glutamate receptors identifies a molecular basis of carbonation detection
Taste perception is thought to involve the encoding of appetitive and aversive chemical cues in food through a limited number of sensory pathways. Through expression analysis of the complete repertoire of Drosophila Ionotropic Receptors (IRs), a sensory subfamily of ionotropic glutamate receptors, we reveal that the majority of IRs is expressed in diverse peripheral neuron populations across gustatory organs in both larvae and adults, implying numerous roles in taste-evoked behaviours. We characterise Ir56d, which labels two anatomically-distinct classes of neurons in the proboscis: one represents a subset of sugar- and fatty acid-sensing neurons, while the other responds to carbonated solutions and fatty acids. Mutational analysis shows that IR56d, together with the broadly-expressed co-receptors IR25a and IR76b, is essential for physiological activation by carbonation and fatty acids, but not sucrose. We further demonstrate that carbonation is behaviourally attractive to flies (in an IR56d-dependent manner), but in a distinct way to other appetitive stimuli. Our work provides a valuable toolkit for investigating the taste functions of IRs, defines a molecular basis of carbonation sensing, and illustrates how the gustatory system uses combinatorial expression of sensory receptors in distinct neuron types to coordinate behaviour
Ectopic adrenal tissue in the spermatic cord in pediatric patients: surgical implications.
ABSTRACT Objective: To study the incidence and relevance of ectopic adrenal tissue in pediatric patients who underwent groin surgical explorations. Materials and Methods: We studied 1120 patients with groin surgical explorations during a period of 8 consecutive years. Patients' clinical data and histological findings were analyzed. Results: We found ectopic adrenal tissue in 13 patients in 1120 groin surgical exploration (1.16%). Of the 13 cases, 5 were diagnosed as having undescended testes, 6 inguinal hernia and 2 communicating hydrocele. Median age at diagnosis was 5.6 years. Histological sections showed adrenal cortical tissue with no medulla present. Conclusion: Based on the clinical implications of those adrenal rests it is mandatory the removal of this ectopic tissue whenever encountered during surgical interventions in the groin region in children
Efficient TALEN-mediated gene knockout in livestock
Transcription activator-like effector nucleases (TALENs) are programmable nucleases that join FokI endonuclease with the modular DNA-binding domain of TALEs. Although zinc-finger nucleases enable a variety of genome modifications, their application to genetic engineering of livestock has been slowed by technical limitations of embryo-injection, culture of primary cells, and difficulty in producing reliable reagents with a limited budget. In contrast, we found that TALENs could easily be manufactured and that over half (23/36, 64%) demonstrate high activity in primary cells. Cytoplasmic injections of TALEN mRNAs into livestock zygotes were capable of inducing gene KO in up to 75% of embryos analyzed, a portion of which harbored biallelic modification. We also developed a simple transposon coselection strategy for TALEN-mediated gene modification in primary fibroblasts that enabled both enrichment for modified cells and efficient isolation of modified colonies. Coselection after treatment with a single TALEN-pair enabled isolation of colonies with mono- and biallelic modification in up to 54% and 17% of colonies, respectively. Coselection after treatment with two TALEN-pairs directed against the same chromosome enabled the isolation of colonies harboring large chromosomal deletions and inversions (10% and 4% of colonies, respectively). TALEN-modified Ossabaw swine fetal fibroblasts were effective nuclear donors for cloning, resulting in the creation of miniature swine containing mono- and biallelic mutations of the LDL receptor gene as models of familial hypercholesterolemia. TALENs thus appear to represent a highly facile platform for the modification of livestock genomes for both biomedical and agricultural applications
Cellular Basis for Response Diversity in the Olfactory Periphery
An emerging idea in olfaction is that temporal coding of odor specificity can be intrinsic to the primary olfactory receptor neurons (ORNs). As a first step towards understanding whether lobster ORNs are capable of generating odor-specific temporal activity and what mechanisms underlie any such heterogeneity in discharge pattern, we characterized different patterns of activity in lobster ORNs individually and ensemble using patch-clamp recording and calcium imaging. We demonstrate that lobster ORNs show tonic excitation, tonic inhibition, phaso-tonic excitation, and bursting, and that these patterns are faithfully reflected in the calcium signal. We then demonstrate that the various dynamic patterns of response are inherent in the cells, and that this inherent heterogeneity is largely determined by heterogeneity in the underlying intrinsic conductances
Co-Administration of a Plasmid DNA Encoding IL-15 Improves Long-Term Protection of a Genetic Vaccine against Trypanosoma cruzi
Background: Immunization of mice with the Trypanosoma cruzi trans-sialidase (TS) gene using plasmid DNA, adenoviral vector, and CpG-adjuvanted protein delivery has proven highly immunogenic and provides protection against acute lethal challenge. However, long-term protection induced by TS DNA vaccines has not been reported. the goal of the present work was to test whether the co-administration of a plasmid encoding IL-15 (pIL-15) could improve the duration of protection achieved through genetic vaccination with plasmid encoding TS (pTS) alone.Methodology: We immunized BALB/c mice with pTS in the presence or absence of pIL-15 and studied immune responses [with TS-specific IFN-gamma ELISPOT, serum IgG ELISAs, intracellular cytokine staining (IFN-gamma, TNF-alpha, and IL-2), tetramer staining, and CFSE dilution assays] and protection against lethal systemic challenge at 1 to 6 months post vaccination. Mice receiving pTS alone developed robust TS-specific IFN-gamma responses and survived a lethal challenge given within the first 3 months following immunization. the addition of pIL-15 to pTS vaccination did not significantly alter T cell responses or protection during this early post-vaccination period. However, mice vaccinated with both pTS and pIL-15 challenged 6 months post-vaccination were significantly more protected against lethal T. cruzi challenges than mice vaccinated with pTS alone (P6 months post immunization. Also, these TS-specific T cells were better able to expand after in vitro restimulation.Conclusion: Addition of pIL-15 during genetic vaccination greatly improved long-term T cell survival, memory T cell expansion, and long-term protection against the important human parasite, T. cruzi.National Institutes of HealthFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Millennium Institute for Gene TherapySt Louis Univ, Dept Internal Med, St Louis, MO 63103 USAUniversidade Federal de São Paulo, Ctr Terapia Celular & Mol, Escola Paulista Med, São Paulo, BrazilSt Louis Univ, Dept Mol Microbiol, St Louis, MO 63103 USAUniv Fed Minas Gerais, Inst Ciencias Biol, Dept Microbiol, Belo Horizonte, MG, BrazilUniversidade Federal de São Paulo, Ctr Terapia Celular & Mol, Escola Paulista Med, São Paulo, BrazilNational Institutes of Health: RO1 AI040196CNPq: 420067/2005-1Web of Scienc
The effect of different dosing regimens of motesanib on the gallbladder: a randomized phase 1b study in patients with advanced solid tumors
Extent: 11 p.BACKGROUND: Gallbladder toxicity, including cholecystitis, has been reported with motesanib, an orally administered small-molecule antagonist of VEGFRs 1, 2 and 3; PDGFR; and Kit. We assessed effects of motesanib on gallbladder size and function. METHODS: Patients with advanced metastatic solid tumors ineligible for or progressing on standard-of-care therapies with no history of cholecystitis or biliary disease were randomized 2:1:1 to receive motesanib 125 mg once daily (Arm A); 75 mg twice daily (BID), 14-days-on/7-days-off (Arm B); or 75 mg BID, 5-days-on/2-days-off (Arm C). Primary endpoints were mean change from baseline in gallbladder size (volume by ultrasound; independent review) and function (ejection fraction by CCK-HIDA; investigator assessment). RESULTS: Forty-nine patients received ≥1 dose of motesanib (Arms A/B/C, n = 25/12/12). Across all patients, gallbladder volume increased by a mean 22.2 cc (from 38.6 cc at baseline) and ejection fraction decreased by a mean 19.2% (from 61.3% at baseline) during treatment. Changes were similar across arms and appeared reversible after treatment discontinuation. Three patients had cholecystitis (grades 1, 2, 3, n = 1 each) that resolved after treatment discontinuation, one patient developed grade 3 acute cholecystitis requiring cholecystectomy, and two patients had other notable grade 1 gallbladder disorders (gallbladder wall thickening, gallbladder dysfunction) (all in Arm A). Two patients developed de novo gallstones during treatment. Twelve patients had right upper quadrant pain (Arms A/B/C, n = 8/1/3). The incidence of biliary “sludge” in Arms A/B/C was 39%/36%/27%. CONCLUSION: Motesanib treatment was associated with increased gallbladder volume, decreased ejection fraction, biliary sludge, gallstone formation, and infrequent cholecystitis. Trial registration: ClinicalTrials.gov NCT00448786Lee S. Rosen, Lara Lipton, Timothy J. Price, Neil D. Belman, Ralph V. Boccia, Herbert I. Hurwitz, Joe J. Stephenson Jr., Lori J. Wirth, Sheryl McCoy, Yong-jiang Hei, Cheng-Pang Hsu and Niall C. Tebbut
Putative Chemosensory Receptors of the Codling Moth, Cydia pomonella, Identified by Antennal Transcriptome Analysis
The codling moth, Cydia pomonella, is an important fruit pest worldwide. As nocturnal animals, adults depend to a large extent on olfactory cues for detection of food and mates, and, for females, oviposition sites. In insects, odor detection is mediated by odorant receptors (ORs) and ionotropic receptors (IRs), which ensure the specificity of the olfactory sensory neuron responses. In this study, our aim was to identify chemosensory receptors in the codling moth as a means to uncover new targets for behavioral interference. Using next-generation sequencing techniques, we identified a total of 43 candidate ORs, one gustatory receptor and 15 IRs in the antennal transcriptome. Through Blast and sequence similarity analyses we annotated the insect obligatory co-receptor ORco, five genes clustering in a conserved clade containing sex pheromone receptors, one homolog of the Bombyx mori female-enriched receptor BmorOR30 (but no homologs of the other B. mori female-enriched receptors) and one gene clustering in the sugar receptor family. Among the candidate IRs, we identified homologs of the two highly conserved co-receptors IR8a and IR25a, and one homolog of an IR involved in phenylethyl amine detection in Drosophila. Our results open for functional characterization of the chemosensory receptors of C. pomonella, with potential for new or refined applications of semiochemicals for control of this pest insect
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