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Dobson JL, Yarbrough MB, Perez J, Evans K, Buckley T. Sport-related concussion induces transient cardiovascular autonomic dysfunction. Am J Physiol Regul Integr Comp Physiol 2017; 312:R575-R584. [DOI: 10.1152/ajpregu.00499.2016] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 01/30/2017] [Accepted: 01/30/2017] [Indexed: 12/14/2022]
Abstract
Recent evidence suggests that concussions may disrupt autonomic cardiovascular control. This study investigated the initial effects of concussion on cardiovascular function using three autonomic reflex tests. Twenty-three recreational athletes (12 women, 11 men) were divided into concussed ( n = 12) and control ( n = 11) groups. Concussed participants performed forced breathing, standing, and Valsalva autonomic tests four times: 1) within 48 h of injury; 2) 24 h later; 3) 1 wk after injury; and 4) 2 wk after injury. The controls performed the same tests on the same schedule. Differences in heart rate (HR), systolic blood pressure (SBP), and diastolic blood pressure (DBP) responses to the tests were continuously measured using finger photoplethysmography and were analyzed using repeated-measures multivariate ANOVAs and ANOVAs. Within 48 h of injury, the concussed group had significantly greater resting SBP ( t21= 2.44, P = 0.02, d = 1.03), HR ( t21= 2.33, P = 0.03, d = 1.01), and SBP responses to standing ( t21= 2.98, P = 0.01, d = 1.24), and 90% SBP normalization times ( t21= 2.64, P = 0.02, d = 1.10) after the Valsalva, but those group differences subsided 24 h later. There was also a significant interaction with the HR responses to forced breathing ( F3,60= 4.13, P = 0.01, ηp2= 0.17), indicating the concussed responses declined relative to the control’s over time. The results demonstrate that concussion disrupted autonomic cardiovascular control, and that autonomic reflex tests are practical means by which to evaluate that dysfunction.
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Albouy PA, Deville S, Fulkar A, Hakouk K, Impéror-Clerc M, Klotz M, Liu Q, Marcellini M, Perez J. Freezing-induced self-assembly of amphiphilic molecules. SOFT MATTER 2017; 13:1759-1763. [PMID: 28097280 DOI: 10.1039/c6sm02154a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The self-assembly of amphiphilic molecules usually takes place in a liquid phase, near room temperature. Here, using small angle X-ray scattering (SAXS) experiments performed in real time, we show that freezing of aqueous solutions of copolymer amphiphilic molecules can induce self-assembly below 0 °C.
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Lozano P, Nieto S, Serrano J, Perez J, Sanchez-Gomez G, García-Verdugo E, Luis S. Flow Biocatalytic Processes in Ionic Liquids and Supercritical Fluids. MINI-REV ORG CHEM 2017. [DOI: 10.2174/1570193x13666161103145723] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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López-Miranda E, Gávila J, Pernas S, Saura C, Oliveira M, Serra V, Schmid P, Lord S, Paez D, Perez J, Llombart A, Petrovic K, Dimitrijevic S, Cortes J. Abstract OT1-01-06: PIQHASSO: Open label, non-randomized, multicenter phase 1/2b study investigating safety and efficacy of PQR309 and eribulin combination in patients (pts) with locally advanced (LA) or metastatic HER2 (-) and triple-negative breast cancer (TNBC) (study PQR309-007). Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-ot1-01-06] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
BACKGROUND:
The PI3K/AKT/mTOR (PAT) pathway alteration has been strongly implicated in breast cancer and may contribute to resistance to available therapy. PQR309 is an oral pan-PI3K and mTOR inhibitor that penetrates the blood-brain barrier. Experiments of eribulin in combination with PI3K inhibitors in luminal and TNBC pre-clinical models enhanced antitumor activity.
TRIAL OBJECTIVES:
The primary objectives of the study are: to identify the maximum tolerated dose (MTD), evaluate the efficacy, safety and tolerability as well as the pharmacokinetics (PK) of PQR309 in combination with eribulin. In addition, exploratory objectives include assessments of: PAT pathway alterations prior to treatment, pharmacodynamics (PD) activity of PQR309 in combination with eribulin and correlation of PAT pathway alterations and PD activity with PQR309 and eribulin PK.
TRIAL DESIGN:
This is an open label, non-randomized, multicenter phase 1/2b clinical trial (dose escalation followed by expansion part) of PQR309 p.o. in combination with the standard dose of eribulin mesylate (1.4 mg/m2) in patients with LAMBC until progression or unacceptable adverse events (AE).
The dose escalation part of the study will first investigate PQR309 administered in a continuous daily (q.d.) and two intermittent treatment schedules in combination with standard administration of eribulin mesylate in patients with HER2 negative LAMBC following the “modified” 3 by 3 design. MTD is defined as the highest dose level at which ≤1 of 6 pts experiences dose-limiting toxicity (DLT) during the 1st cycle. After the MTD of PQR309 in combination with eribulin has been defined in all the three treatment schedules, one schedule will be selected, based on the overall evaluation of clinical data from the dose escalation part of the study, for further evaluation of efficacy in the expansion part of the study.
The expansion part of the trial applies Simon's MiniMax two-stage design. At the first stage, > 3 pts with TNBC with clinical benefit (CB) among 14 pts will be necessary to continue to the second stage. At the study end, > 9 pts with CB out of 28 pts are required to reject the null hypothesis. With this design, there is an 80% probability of a positive finding if the true clinical benefit rate (CBR) is ≥ 43% and a 5% probability of a positive finding if the true CBR is ≤ 21%.
ELIGIBILITY:
Women with HER2- LAMBC with two to 5 prior chemotherapy regimens in advanced disease. Adequate organ function and performance status. Phase II specific selection criteria are: triple negative LAMBC and RECIST v1.1 evaluable disease.
ACCRUAL:
Approximately 60 patients will be enrolled in approximately 10 sites
Recruitment opened in March 2016.
TRIAL REGISTRATION: NCT02723877. Date of registration: 21/12/2015. First patient included: 04/04/2016.
Citation Format: López-Miranda E, Gávila J, Pernas S, Saura C, Oliveira M, Serra V, Schmid P, Lord S, Paez D, Perez J, Llombart A, Petrovic K, Dimitrijevic S, Cortes J. PIQHASSO: Open label, non-randomized, multicenter phase 1/2b study investigating safety and efficacy of PQR309 and eribulin combination in patients (pts) with locally advanced (LA) or metastatic HER2 (-) and triple-negative breast cancer (TNBC) (study PQR309-007) [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr OT1-01-06.
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Chavez RD, Coricor G, Perez J, Seo HS, Serra R. SOX9 protein is stabilized by TGF-β and regulates PAPSS2 mRNA expression in chondrocytes. Osteoarthritis Cartilage 2017; 25:332-340. [PMID: 27746378 PMCID: PMC5258840 DOI: 10.1016/j.joca.2016.10.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 08/29/2016] [Accepted: 10/05/2016] [Indexed: 02/02/2023]
Abstract
OBJECTIVE We previously identified 3'-phosphoadenosine 5'-phosphosulfate synthase 2 (PAPSS2) as a transcriptional target of transforming growth factor β (TGF-β) in chondrocytes. PAPSS2 is required for proper sulfation of proteoglycans in cartilage. Defective sulfation in the matrix results in alterations in mechanical properties of the cartilage that would be expected to result in degeneration. The objective of this study was to identify factors that regulate PAPSS2 expression and compare to a known TGF-β responsive gene, proteoglycan 4/lubricin (PRG4). In this study, TGF-β-mediated regulation of SOX9 was characterized, and the involvement of SOX9 in regulation of PAPSS2 mRNA was investigated. DESIGN Primary bovine articular chondrocytes grown in micromass culture and ATDC5 cells were used as the model system. Adenoviruses were used to express SOX9 and SMAD3. siRNA was used to knock-down Sox9 and Smad3. Western blot and real-time quantitative RT-PCR (qPCR) were used to measure changes in protein and mRNA levels in response to treatment. RESULTS Over-expression of SOX9 was sufficient to up-regulate PAPSS2 mRNA. TGF-β treatment of SOX9-expressing cells resulted in enhanced up-regulation of PAPSS2 mRNA, suggesting that SOX9 cooperates with TGF-β signaling. Furthermore, Sox9 was required for full TGF-β-mediated induction of Papss2. In contrast, PRG4 was regulated by SMAD3 but not SOX9. SOX9 protein levels were increased after treatment with TGF-β, although SOX9 mRNA was not. SOX9 protein was post-translationally stabilized after treatment with TGF-β. CONCLUSIONS TGF-β stabilizes SOX9 protein, and SOX9 is sufficient and necessary for TGF-β-mediated regulation of PAPSS2 mRNA, providing a novel mechanism for TGF-β-mediated gene regulation in chondrocytes.
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Fontalba-Navas A, Lucas-Borja ME, Gil-Aguilar V, Arrebola JP, Pena-Andreu JM, Perez J. Incidence and risk factors for post-traumatic stress disorder in a population affected by a severe flood. Public Health 2017; 144:96-102. [PMID: 28274391 DOI: 10.1016/j.puhe.2016.12.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 12/07/2016] [Accepted: 12/13/2016] [Indexed: 11/15/2022]
Abstract
OBJECTIVES We aimed to study the risk of developing post-traumatic stress disorder (PTSD) symptoms in people who resided in an affected area by an extremely severe flood, and sociodemographic risk factors associated with this condition. STUDY DESIGN A geographic information system (GIS) was used to distribute the rainfall data. A case-control study was developed to study the relationship between PTSD and sociodemographic risk factors. METHODS To delineate the areas affected by the flood and the intensity of this rainfall in comparison with historical hydrological data, we employed geographical information systems (GIS). Then, we recruited a representative sample of the affected population and another population sample that lived at the time of this disaster in adjacent geographical areas that were not affected. Both groups were randomly selected in primary care practices, from December 1st 2012 to January 31st 2013. All participants, 70 from the affected areas and 91 from the non-affected, filled a sociodemographic questionnaire and the trauma questionnaire (TQ) to identify and rate PTSD symptoms. RESULTS Our GIS analysis confirmed that the amount of precipitation in 2012 in the areas affected by the flood was exceptionally high compared with historical average rainfall data (461l per square metre vs 265). Individuals who resided in the affected areas at the time of the flood were at much higher risk of developing PTSD symptoms (OR: 8.18; 95% CI: 3.99-17.59) than those living in adjacent, non-affected localities. Among the sociodemographic variables included in this study, only material and financial losses were strongly associated with the onset of PTSD (P < 0.001). Physical risk during this life-threatening catastrophe also indicated a positive correlation with later development of PTSD symptoms; however, it did not reach statistical significance (P = 0.06). CONCLUSIONS Populations affected by severe floods may suffer an increase of PTSD symptoms in the following months. This finding, along with the importance of material losses as a predictor for such disorder, may help develop effective plans to minimize the negative impact of these natural disasters on public health.
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Mitchell D, Perez J, Grau L, Summers S, Rosas S, Ong A, Schneiderbauer MM, Hernandez VH. Systematic Review of Novel Synovial Fluid Markers and Polymerase Chain Reaction in the Diagnosis of Prosthetic Joint Infection. AMERICAN JOURNAL OF ORTHOPEDICS (BELLE MEAD, N.J.) 2017; 46:190-198. [PMID: 28856346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Prosthetic joint infection (PJI) may be underreported because of difficulty in making a diagnosis, especially in infections with low-virulence organisms. Reports of PJI cases misdiagnosed as aseptic loosening suggest that current screening and diagnostic tools are not sensitive enough to detect all infections and that PJI likely is underdiagnosed. We reviewed the literature on recently developed novel synovial biomarkers and polymerase chain reaction (PCR) technologies, of which several have proved promising as highly sensitive and specific tools for detecting PJI. We followed the recommendations of PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses). Of 90 papers screened by title or abstract and then by full text, 15 met our inclusion criteria. Sensitivities reported in the included studies ranged from 63% to 100% for α-defensin, from 46.8% to 90.9% for interleukin 6, from 28.6% to 100% for leukocyte esterase, and from 67.10% to 95.7% for PCR. Specificities ranged from 95% to 100% for α-defensin, from 85.7% to 97.6% for interleukin 6, from 63.6% to 96.5% for leukocyte esterase, and from 12.3% to 97.8% for PCR. α-Defensin is a highly sensitive and specific screening tool that may help improve the accuracy of PJI detection, particularly in low-grade infections.
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Muñoz M, Santaballa A, Seguí MA, Beato C, de la Cruz S, Espinosa J, Fonseca PJ, Perez J, Quintanar T, Blasco A. SEOM Clinical Guideline of fertility preservation and reproduction in cancer patients (2016). Clin Transl Oncol 2016; 18:1229-1236. [PMID: 27896641 PMCID: PMC5138251 DOI: 10.1007/s12094-016-1587-9] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 11/16/2016] [Indexed: 11/30/2022]
Abstract
Chemotherapy and radiotherapy often result in reduced fertility in cancer patients. With increasing survival rates, fertility is an important quality-of-life concern for many young cancer patients. Around 70–75% of young cancer survivors are interested in parenthood but the numbers of patients who access fertility preservation techniques prior to treatment are significantly lower. Moreover, despite existing guidelines, healthcare professionals do not address fertility preservation issues adequately. There is a critical need for improvements in clinical care to ensure patients are well informed about infertility risks and fertility preservation options and to support them in their reproductive decision-making prior to cancer treatment.
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Diaz-Botero S, Espinosa-Bravo M, Gonçalves VR, Esgueva-Colmenarejo A, Peg V, Perez J, Cortes J, Rubio IT. Different Prognostic Implications of Residual Disease After Neoadjuvant Treatment: Impact of Ki 67 and Site of Response. Ann Surg Oncol 2016; 23:3831-3837. [DOI: 10.1245/s10434-016-5339-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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86
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Kirkbride JB, Perez J, Jones PB. Neighbourhood communalities and ultra-high risk psychosis: An emergent literature. Schizophr Res 2016; 176:312-313. [PMID: 27344364 DOI: 10.1016/j.schres.2016.06.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 06/07/2016] [Accepted: 06/17/2016] [Indexed: 11/29/2022]
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Hummel M, Perez J, Hagen R, Gelbrich G, Ernestus RI, Matthies C. Auditory Monitoring in Vestibular Schwannoma Surgery: Intraoperative Development and Outcome. World Neurosurg 2016; 96:444-453. [PMID: 27647030 DOI: 10.1016/j.wneu.2016.09.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 09/03/2016] [Accepted: 09/06/2016] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The auditory brainstem response (ABR) may be a predictor of postoperative cochlear nerve function. In this study, the course of intraoperative ABR monitoring was analyzed to find predictive markers for postoperative hearing function. PATIENTS AND METHODS From 2010 to 2012, 46 patients who had had vestibular schwannoma surgery were investigated by intraoperative ABR monitoring. The type of ABR development was identified: type A, improved or stable ABR; type B, fluctuating or deteriorated ABR; and type C, slow or sudden ABR loss. Hearing function was correlated with ABR monitoring. RESULTS The different types of ABR development showed a strong correlation with postoperative hearing (P < 0.001). ABR quality after 60% tumor removal was independently significant for hearing outcome. Possible interpretations are: 1) Independent of positive factors at the start of surgery at the final phase of tumor resection, what mattered for hearing outcome was the ABR quality (P < 0.001). 2) Dependence on ABR quality in the last phase might be a result of what the cochlear nerve has endured during resection. 3) The importance of ABR quality in the last phase might be because the tumor capsule is dissected from the nerves in that final phase. ANALYSIS of critical actions with incidence of ABR impairment showed that dissection in the internal auditory canal and drilling were most critical. CONCLUSIONS Intraoperative ABR development is a predictive factor for postoperative hearing outcome. Deterioration should be avoided, because ABR improvement as a result of good status at the beginning of surgery could not be assumed.
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Nickl R, Hafner S, Hummel M, Perez J, Ernestus RI, Matthies C. How to Increase Reliability in Facial Nerve Evaluation after Vestibular Schwannoma Surgery. Skull Base Surg 2016. [DOI: 10.1055/s-0036-1592595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Matthies C, Hummel M, Nickl R, Perez J, Löhr M, Ernestus RI, Hagen R. Auditory Function in Vestibular Schwannoma Resections via the Retro-Sigmoid Approach. Skull Base Surg 2016. [DOI: 10.1055/s-0036-1592484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Hummel M, Nickl R, Perez J, Löhr M, Ernestus RI, Matthies C. Complications in Vestibular Schwannoma Resections via the Retro-Sigmoid Approach. Skull Base Surg 2016. [DOI: 10.1055/s-0036-1592531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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91
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Sundberg TB, Liang Y, Wu H, Choi HG, Kim ND, Sim T, Johannessen L, Petrone A, Khor B, Graham DB, Latorre IJ, Phillips AJ, Schreiber SL, Perez J, Shamji AF, Gray NS, Xavier RJ. Development of Chemical Probes for Investigation of Salt-Inducible Kinase Function in Vivo. ACS Chem Biol 2016; 11:2105-11. [PMID: 27224444 DOI: 10.1021/acschembio.6b00217] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Salt-inducible kinases (SIKs) are promising therapeutic targets for modulating cytokine responses during innate immune activation. The study of SIK inhibition in animal models of disease has been limited by the lack of selective small-molecule probes suitable for modulating SIK function in vivo. We used the pan-SIK inhibitor HG-9-91-01 as a starting point to develop improved analogs, yielding a novel probe 5 (YKL-05-099) that displays increased selectivity for SIKs versus other kinases and enhanced pharmacokinetic properties. Well-tolerated doses of YKL-05-099 achieve free serum concentrations above its IC50 for SIK2 inhibition for >16 h and reduce phosphorylation of a known SIK substrate in vivo. While in vivo active doses of YKL-05-099 recapitulate the effects of SIK inhibition on inflammatory cytokine responses, they did not induce metabolic abnormalities observed in Sik2 knockout mice. These results identify YKL-05-099 as a useful probe to investigate SIK function in vivo and further support the development of SIK inhibitors for treatment of inflammatory disorders.
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Wagner FF, Bishop JA, Gale JP, Shi X, Walk M, Ketterman J, Patnaik D, Barker D, Walpita D, Campbell AJ, Nguyen S, Lewis M, Ross L, Weïwer M, An WF, Germain AR, Nag PP, Metkar S, Kaya T, Dandapani S, Olson DE, Barbe AL, Lazzaro F, Sacher JR, Cheah JH, Fei D, Perez J, Munoz B, Palmer M, Stegmaier K, Schreiber SL, Scolnick E, Zhang YL, Haggarty SJ, Holson EB, Pan JQ. Inhibitors of Glycogen Synthase Kinase 3 with Exquisite Kinome-Wide Selectivity and Their Functional Effects. ACS Chem Biol 2016; 11:1952-63. [PMID: 27128528 DOI: 10.1021/acschembio.6b00306] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The mood stabilizer lithium, the first-line treatment for bipolar disorder, is hypothesized to exert its effects through direct inhibition of glycogen synthase kinase 3 (GSK3) and indirectly by increasing GSK3's inhibitory serine phosphorylation. GSK3 comprises two highly similar paralogs, GSK3α and GSK3β, which are key regulatory kinases in the canonical Wnt pathway. GSK3 stands as a nodal target within this pathway and is an attractive therapeutic target for multiple indications. Despite being an active field of research for the past 20 years, many GSK3 inhibitors demonstrate either poor to moderate selectivity versus the broader human kinome or physicochemical properties unsuitable for use in in vitro systems or in vivo models. A nonconventional analysis of data from a GSK3β inhibitor high-throughput screening campaign, which excluded known GSK3 inhibitor chemotypes, led to the discovery of a novel pyrazolo-tetrahydroquinolinone scaffold with unparalleled kinome-wide selectivity for the GSK3 kinases. Taking advantage of an uncommon tridentate interaction with the hinge region of GSK3, we developed highly selective and potent GSK3 inhibitors, BRD1652 and BRD0209, which demonstrated in vivo efficacy in a dopaminergic signaling paradigm modeling mood-related disorders. These new chemical probes open the way for exclusive analyses of the function of GSK3 kinases in multiple signaling pathways involved in many prevalent disorders.
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Mishara A, Bonoldi I, Allen P, Rutigliano G, Perez J, Fusar-Poli P, McGuire P. Neurobiological Models of Self-Disorders in Early Schizophrenia. Schizophr Bull 2016; 42:874-80. [PMID: 26385763 PMCID: PMC4903042 DOI: 10.1093/schbul/sbv123] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Self-disorders (SDs) (from the German Ichstörungen) are alterations of the first-person perspective, long associated with schizophrenia, particularly in early phases. Although psychopathological features of SDs continue to be studied, their neurobiological underpinnings are unknown. This makes it difficult to integrate SDs into contemporary models of psychosis. The present review aims to address this issue, starting from an historical excursus revealing an interconnection between neuroscientific models and the origin of the psychopathological concept of SDs. Subsequently, the more recent neurobiological models related to SDs are discussed, particularly with respect to the onset of schizophrenia.
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Estepa JC, Aguilera-Tejero E, Zafra R, Mayer-Valor R, Rodríguez M, Perez J. An Unusual Case of Generalized Soft-Tissue Mineralization in a Suckling Foal. Vet Pathol 2016; 43:64-7. [PMID: 16407490 DOI: 10.1354/vp.43-1-64] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
An atypical case of severe soft-tissue mineralization in a 3-week-old foal from a herd of Andalusian horses is described. The herd clinical history and the laboratory findings were compatible with a diagnosis of secondary hyperparathyroidism due to a mineral imbalance in the diet (low calcium and high phosphorus intake). Mares showed a marked increase in serum parathyroid hormone (PTH) approximately 10 times normal levels. Serum PTH was marginally elevated in foals. Clinical signs (unthriftiness, painful joints, lameness in one or more limbs, and stiff gait) were more pronounced in foals than in mares. Two foals died and necropsy of one of them revealed extensive soft-tissue mineralization of arterial walls and pulmonary parenchyma. Clinical signs in mares and foals resolved by 4 weeks after diet adjustment.
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Corradini PG, Santos NA, Silva GC, Perez J. Pt–rare earth catalysts for ethanol electrooxidation: modification of polyol synthesis. J Solid State Electrochem 2016. [DOI: 10.1007/s10008-016-3296-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Comella K, Parcero J, Bansal H, Perez J, Lopez J, Agrawal A, Ichim T. Effects of the intramyocardial implantation of stromal vascular fraction in patients with chronic ischemic cardiomyopathy. J Transl Med 2016; 14:158. [PMID: 27255774 PMCID: PMC4890248 DOI: 10.1186/s12967-016-0918-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 05/20/2016] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Stromal vascular fraction (SVF) can easily be obtained from a mini-lipoaspirate procedure of fat tissue. The SVF contains a mixture of cells including ADSCs and growth factors and has been depleted of the adipocyte (fat cell) population. We evaluated the safety and efficacy of administering SVF intra-myocardially into patients with chronic ischemic cardiomyopathy. METHODS A total of 28 patients underwent a local tumescent liposuction procedure to remove approximately 60 ml of fat tissue. The fat was separated to isolate the SVF and the cells were delivered into the akinetic myocardial scar region using a transendocardial delivery system (MyoCath(®)) in patients who had experienced a previous myocardial infarct. The subjects were then monitored for adverse events, ejection fraction via echocardiogram and six-minute walk test (6MWT) over a period of 6 months. RESULTS The average EF was 29 % at baseline and significantly increased to 35 % at both 3 and 6 months. Patients walked an average of 349 m at baseline and demonstrated a statistically significant improvement at 3 and 6 months' post treatment of more than 80 m. CONCLUSIONS Overall, patients were pleased with the treatment results. More importantly, the procedure demonstrated a strong safety profile with no severe adverse events or complications linked to the therapy. Trial registration NCT01502514 Name of registry: http://www.clinicaltrials.gov URL: https://www.clinicaltrials.gov/ct2/show/NCT01502514?term=adipose+cells+heart&rank=4 Date of registration: December 27, 2011 Date of enrollment: January 2012.
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Schwartz MC, Nykanen D, Winner LH, Perez J, McMahan M, Munro HM, Suguna Narasimhulu S. Transcatheter Patent Ductus Arteriosus Occlusion in Small Infants. CONGENIT HEART DIS 2016; 11:647-655. [DOI: 10.1111/chd.12360] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Hummel M, Krausgrill C, Perez J, Hagen R, Ernestus RI, Matthies C. Management of vestibular schwannoma: A pilot case series with postoperative ABR monitoring. Clin Neurol Neurosurg 2016; 143:139-43. [PMID: 26943723 DOI: 10.1016/j.clineuro.2016.02.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 02/18/2016] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Auditory brainstem response (ABR) monitoring is regularly used in surgery of vestibular schwannoma to achieve hearing preservation. Despite ABR preservation at the end of surgery, there are cases with postoperative deafness. To date it is unclear whether these are false positive ABR data or cases of secondary hearing loss. In this pilot study, we focused on the early postoperative phase and possible ABR changes in this period. PATIENT AND METHOD In a prospective study from March 2008 to April 2009, eleven patients (5 female and 6 male) with vestibular schwannoma and preoperative residual hearing were investigated by repeated postoperative ABR investigation at seven dates during the first week. ABR results, hearing function and tumor extension were categorized according to Hannover classification system. The postoperative developments of the first week after surgery are described. RESULTS Hearing preservation was achieved in 55% (6 of 11) of the patients. In the early postoperative phase, three patients with an ABR loss at the end of surgery showed some kind of recovery. In one case, a permanent recovery could be reproduced and developed step by step during the early postoperative phase. Three patients showed a postoperative deterioration resulting in a complete ABR loss. In one of these cases, it was probably a technical problem, but in the two other cases it was a real impairment. In 8 of 11 ABR, quality changed considerably during the early postoperative phase. CONCLUSION This pilot study identifies considerable change of ABR formation occurring in a considerable proportion of patients early after vestibular schwannoma resection. Obviously, in some patients, the endoperative state of the ABR is not the final state. Some patients show a postoperative improvement and some a deterioration towards a complete loss of all ABR components. Whether secondary hearing loss could be presented by early detection, will be a matter of further studies.
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Hair AB, Peluso AM, Hawthorne KM, Perez J, Smith DP, Khan JY, O'Donnell A, Powers RJ, Lee ML, Abrams SA. Beyond Necrotizing Enterocolitis Prevention: Improving Outcomes with an Exclusive Human Milk-Based Diet. Breastfeed Med 2016; 11:70-4. [PMID: 26789484 PMCID: PMC4782036 DOI: 10.1089/bfm.2015.0134] [Citation(s) in RCA: 134] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
OBJECTIVE The aim of this study was to compare outcomes of infants pre and post initiation of a feeding protocol providing an exclusive human milk-based diet (HUM). MATERIALS AND METHODS In a multicenter retrospective cohort study, infants with a birth weight <1,250 g who received a bovine-based diet (BOV) of mother's own milk fortified with bovine fortifier and/or preterm formula were compared to infants who received a newly introduced HUM feeding protocol. Infants were excluded if they had major congenital anomalies or died in the first 12 hours of life. Data were collected 2-3 years prior to and after introduction of an exclusive HUM diet. Primary outcomes were necrotizing enterocolitis (NEC) and mortality. Secondary outcomes included late-onset sepsis, retinopathy of prematurity (ROP), and bronchopulmonary dysplasia (BPD). RESULTS A total of 1,587 infants were included from four centers in Texas, Illinois, Florida, and California. There were no differences in baseline demographics or growth of infants. The HUM group had significantly lower incidence of proven NEC (16.7% versus 6.9%, p < 0.00001), mortality (17.2% versus 13.6%, p = 0.04), late-onset sepsis (30.3% versus 19.0%, p < 0.00001), ROP (9% versus 5.2%, p = 0.003), and BPD (56.3% versus 47.7%, p = 0.0015) compared with the BOV group. CONCLUSIONS Extremely premature infants who received an exclusive HUM diet had a significantly lower incidence of NEC and mortality. The HUM group also had a reduction in late-onset sepsis, BPD, and ROP. This multicenter study further emphasizes the many benefits of an exclusive HUM diet, and demonstrates multiple improved outcomes after implementation of such a feeding protocol.
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Falo C, Ventura LM, Petit A, Perez J, Cañellas J, Perez L, Loayza C, Gil M, Varela M, Garcia A, Pla MJ, Lopez A, Guma A, Pernas S. Abstract P2-08-31: Tumor and axillar downstaging as a prognostic factor and evaluation of effectiveness to primary chemotherapy in breast cancer: A retrospective analysis. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p2-08-31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction: Evaluation of the benefit of primary chemotherapy (PC) is not easy to establish. Pathologic complete response (pCR) has been considered the main surrogate prognostic factor of patient's survival. However, patients achieving a pCR are not the only ones who benefit from PC. The purpose of our study is to find a measure of response that includes the maximum of patients that benefit from PC in terms of survival.
Patients and methods: 224 breast cancer patients were treated in Breast Cancer Unit from Institut Català d'Oncologia (ICO) L'Hospitalet with taxans and antracyclines-based PC +/- trastuzumab between 2009 and 2011. pCR was defined as no invasive carcinoma found in the tumor and in the axillary lymph nodes (ypT0/ypTis ypN0). Tumor and nodal downstaging (TNDS) was calculated according to the "neoadjuvant response index" (NRI) from Rodenhuis and also as a dichotomic variable: Positive includes those patients achieving dowstaging of both T and N plus T downstaging N0 and negatives those patients without downstaging in any of both variables. Those parameters were related to patient's overall survival (OS). Statistical analysis was performed with SPSS version 15.
Results: Median age 45.5 years (24-83). Main tumor characteristics: T2 (62.6%); N1 (50%); ductal infiltrating carcinoma (95.5%) and grade III (57.1%). Biological sub-type according to the last St Gallen classification: luminal A: 28 patients (pts); luminal B/Her2-: 61 pts; luminal B/HER2+: 34 pts; HER2+: 33 pts and triple negative: 69 pts. Pathologic complete response was achieved in 49 pts (22.5%). TNDS was evaluated in 181 patients and of those 90 was positive. According to NRI 74 patients presented cut-off> 0.5 and 52 pts > 0.7. Parameters related to OS were: biological subtype (P: 0.007); achieving a pCR (p: 0.007); NRI cut-off 0.5 (P: 0.001) and TNDS (p:0.000). In the multivariate analysis only TNDS and biological subtype remained statistically significant. When comparing those patients with positive vs. negative TNDS, the HR for recurrence was of 10.05 (IC 2.33 -43.57). The median OS of the series has not been reached. OS at 5y was 82.7% (IC: 77.1%-88%) and specific breast cancer OS at 5 y was 85% (IC:79.5%-90%). The number of events (breast cancer deaths) for each biological subtype according to positive vs. negative TNDS was: luminal A: 0/5 vs. 0/18; luminal B Her2-: 0/10 vs. 8/43; luminal B HER2+:0/23 vs. 2/9; HER2+: 0/22 vs. 0/2 and TN: 2/30 vs. 8/18. Survival data per subtypes and TNDS is immature due to the scarce number of events. Estimated 5y OS for TNDS positive vs. negative in luminal A: 100% vs. 100%; luminal B Her2-: 100% vs. 82%; luminal B HER2+:100 vs.77.7%; HER2+: 100% vs. 100% and TN: 93% vs. 55%, respectively.
Conclusion: In our series, TNDS measured either with the NRI from Rodenhuis or as a dichotomic variable was the best parameter to evaluate response to PC in terms of OS. OS of luminal A and luminal B/Her2 negative is less influenced by PC than the rest of subgroups. In fact both subgroups have good prognosis despite their poor sensitivity to chemotherapy. Those tumors that benefit most from PC were luminal B/ Her2+; Her2+ and triple negative patients who achieved a positive TNDS.
Citation Format: Falo C, Ventura LM, Petit A, Perez J, Cañellas J, Perez L, Loayza C, Gil M, Varela M, Garcia A, Pla MJ, Lopez A, Guma A, Pernas S. Tumor and axillar downstaging as a prognostic factor and evaluation of effectiveness to primary chemotherapy in breast cancer: A retrospective analysis. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P2-08-31.
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