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Magnetic liver retraction in bariatric surgery: Is it possible? Cir Esp 2024:S2173-5077(24)00089-9. [PMID: 38608757 DOI: 10.1016/j.cireng.2024.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 02/21/2024] [Indexed: 04/14/2024]
Abstract
One of the recent advances in bariatric surgery is the use of magnetic devices. This research paper describes magnetic liver retraction in morbidly obese patients during bariatric surgery. A descriptive, prospective and observational study was carried out, analyzing 100 patients in whom magnetic retraction was used. Mean and SD body mass index was 46.1 ± 5.09 kg/m2. The magnetic system was successfully used for liver retraction in 95% of cases; in only 5% of cases was its use not possible due to hepatomegaly and severe hepatic steatosis. According to the results, magnetic liver retraction can be safe and used in bariatric surgery, regardless of body mass index and with a low percentage of complications.
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Integrative Taxonomy of Prosogonotrema bilabiatum Vigueras, 1940 (Digenea: Sclerodistomidae): A Parasite in Atlantic Spadefish Chaetodipterus faber (Broussonet, 1782) (Acanthuriformes: Ephippidae) from Brazil. Acta Parasitol 2024; 69:898-909. [PMID: 38472688 DOI: 10.1007/s11686-024-00825-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 01/31/2024] [Indexed: 03/14/2024]
Abstract
OBJECTIVES The present work aims to expand the knowledge of the digenean species Prosogonotrema bilabiatum (Sclerodistomidae), a parasite of Chaetodipterus faber (Acanthuriformes) from Brazil, with an integrative taxonomic approach, using light microscopy, scanning electron microscopy, histology, and molecular biology. METHODS Forty-one digenean specimens were stained with hydrochloric carmine for morphological studies. Eleven parasites were dehydrated through a graded ethanol series, critical point dried with carbon dioxide, and coated with gold for scanning electron microscopy analysis. Four specimens were processed following histological routine and stained with hematoxylin and eosin and Gomori trichrome. DNA extracted was amplified using 28S partial primer D1-D3. Maximum likelihood and Bayesian inference were performed for phylogenetic analysis. RESULTS Morphometric and morphological data of the specimens studied ranged in accordance as observed in previous descriptions of the species. Observations from scanning electron microscopy and histology corroborated with those observed in stained whole mounts. Molecular analysis showed that specimens of P. bilabiatum from Brazil clustered with another two sequences of this species from different hosts and localities, with a high node support value. CONCLUSIONS The integrative taxonomic approach allowed to record and describe new characteristics of P. bilabiatum related to the tegument, the structure and the arrangement of its tissues. The use of molecular markers confirmed that specimens identified as P. bilabiatum from different hosts and localities are all conspecific. Further studies, mainly molecular with less conserved genetic markers, should be carried out to better understand the phylogenetic relationships of Prosogonotrema with Hemiuroidea.
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Psychosocial Determinants of Mental Healthcare Use Among Mexican-origin Women from Farmworker Families in Southern California. J Behav Health Serv Res 2024; 51:90-100. [PMID: 37612451 DOI: 10.1007/s11414-023-09860-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/08/2023] [Indexed: 08/25/2023]
Abstract
Little is known about the contribution of psychosocial factors related to mental healthcare use among Mexican-origin women from farmworker families. Therefore, this study assessed relationships between acculturative stress, depressive symptoms, mental healthcare service use, and preferences for seeking care. Linear and logistic regression models and chi-square tests were performed to analyze survey data from 78 Mexican-origin women from farmworker families. Women were recruited in collaboration with promotoras and completed measures of acculturative stress, depressive symptoms, and mental healthcare use and preferences. Overall, 29.5% of the sample reported clinically significant depressive symptomatology. Acculturative stress was positively associated with depressive symptoms (b = 0.43, 95%CI = 0.27,0.59) after controlling for years in the U.S., primary language, and demographic characteristics. In addition, acculturative stress was associated with lower odds of mental healthcare use (OR = 0.96) after controlling for years in the U.S. and depressive symptoms. However, this association was no longer statistically significant when controlling for health insurance status and access to transportation. Mexican-origin women with high levels of acculturative stress were significantly more likely to seek care from a psychiatrist/psychologist than their peers (54.3% vs. 45.7%); however, this preference was not indicative of their use of mental healthcare services. Results suggest that acculturative stress is a risk factor for depressive symptoms and might contribute to a delay in seeking mental healthcare services in Mexican-origin women from farmworker families. Thus, interventions for this group should address aspects of acculturative stress as a strategy to increase mental health services use.
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Clinical Usefulness of Prostate-specific Membrane Antigen-ligand Positron Emission Tomography/Computed Tomography for the Detection of Prostate Cancer Biochemical Recurrence after Primary Radiation Therapy in Patients with Prostate-specific Antigen Below the Phoenix Threshold: Systematic Review and Meta-analysis. Clin Oncol (R Coll Radiol) 2023; 35:e676-e688. [PMID: 37802722 DOI: 10.1016/j.clon.2023.09.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 07/01/2023] [Accepted: 09/20/2023] [Indexed: 10/08/2023]
Abstract
AIMS After primary radiotherapy, biochemical recurrence is defined according to the Phoenix criteria as a prostate-specific antigen (PSA) value >2 ng/ml relative to the nadir. Several studies have shown that prostate-specific membrane antigen (PSMA)-ligand positron emission tomography/computed tomography (PET/CT) can help in detecting recurrence in patients with low PSA values. This study aimed to assess the detection rate and patterns of PSMA-ligand PET/CT uptake in patients with suspected biochemical recurrence after primary radiotherapy and with PSA levels below the Phoenix threshold. MATERIALS AND METHODS The meta-analysis was carried out in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. Articles providing data on patients with suspected prostate cancer recurrence after primary radiotherapy with a PSA value below the Phoenix threshold and who underwent PSMA-ligand PET/CT were included. Quality assessment was carried out using the Quality Assessment of Diagnostic Accuracy Studies-2 tool (QUADAS-2). RESULTS In total, five studies were included, recruiting 909 patients (202 with PSA ≤2 ng/ml). The PSMA-ligand detection rate in the patients with ≤2 ng/ml ranged from 66 to 83%. The most frequent source of PSMA-ligand PET/CT uptake was local recurrence, followed by lymph node metastasis and bone metastasis. PSMA-ligand PET/CT uptake due to local-only recurrence was more likely in patients with PSA ≤2 ng/ml compared with PSA > 2 ng/ml: risk ratio 0.72 (95% confidence interval 0.58-0.89), P = 0.003. No significant differences were observed in the detection of PSMA-ligand uptake in other areas. Limitations include a lack of biopsy confirmation, cohort reports with small sample sizes and a potentially high risk of bias. CONCLUSION A significant detection of PSMA-ligand-avid disease was observed in patients with PSA levels below the Phoenix threshold. There was a higher likelihood of detecting local-only uptake when the PSA value was ≤2 ng/ml. The findings suggest that a critical review of the Phoenix criteria may be warranted in the era of PSMA-ligand PET/CT and highlight the need for further prospective trials.
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Clinical Usefulness of PSMA PET/CT Imaging in Patients with Suspected Recurrence of Prostate Cancer after Primary RT with PSA below the Phoenix Criteria Threshold: Systematic Review and Meta-Analysis. Int J Radiat Oncol Biol Phys 2023; 117:e387. [PMID: 37785303 DOI: 10.1016/j.ijrobp.2023.06.2506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) To assess the detection rate and the patterns of PSMA PET/CT uptake in patients with suspected prostate cancer recurrence after primary radiotherapy with serum PSA levels below the accepted Phoenix definition criteria for biochemical recurrence. MATERIALS/METHODS The meta-analysis was performed according to the PRISMA statement. Studies providing data on patients with suspected prostate cancer recurrence after primary radiotherapy with serum PSA levels below the accepted Phoenix definition criteria were included. RESULTS Atotal of 5 studies included a total of 1334 patients, of which 489 patients with suspected BCR and serum PSA levels below the Phoenix criteria were included. The PSMA PET/CT detection rate (DR) was 60% for PSA <0.5 ng/mL, 76% for PSA 0.5-1 ng/mL, 81.03% for PSA 1-2 ng/mL, and 89.5% for PSA>2. No significant differences were found in the locations of PSMA-PET/CT uptake among those with PSA ≤2 ng/mL, compared with those meeting the Phoenix criteria. The PSMA-PET/CT uptake of local-only recurrence was more likely in patients with PSA <2 ng/mL (local-only recurrence PSA >2 ng/mL [40.07%] vs PSA <2 ng/mL [58.10%]), RR: 0.718 (95% CI: 0.579-0.892). Lymph node, bone, and visceral metastasis detection rates could be extracted from 3 studies (432 patients). For lymph nodes, the DR was 46% (95% CI: 38-54) in patients outside the Phoenix criteria threshold, and 50% (95% CI: 39-62) in patients with PSA>2 ng/mL. The DR for bone metastases was 19% (95% CI: 12-28) in patients outside the Phoenix criteria threshold, and 25% (95% CI: 19-31) in patients with PSA>2 ng/mL. The DR for visceral metastases was 3% (95% CI: 0-7) in patients outside the Phoenix criteria threshold, and 2% (95% CI: 0-4) in patients with PSA>2 ng/mL. The potentially salvageable disease was considered when all evidence of avid disease could be safely treated with local therapy. This data could be extracted from two studies (343 patients). A higher proportion of disease potentially amenable to salvage therapy was reported in patients outside the Phoenix criteria threshold [salvageable disease: PSA ≤2 ng/mL: 69% (95% CI: 57-80), and PSA >2 ng/mL: 61% (95% CI: 55-66). The pooled risk ratio meta-analysis showed no statistically significant differences between the two previous groups RR: 0.91 (95% CI: 0.75-1.10). CONCLUSION PSMAPET/CT can detect prostate cancer recurrence in patients with PSA levels below the Phoenix criteria threshold (reaching up to 80%). Local-only recurrence detection by PSMA PET/CT was more likely in patients with PSA <2 ng/mL. The data from the present meta-analysis shows that a critical review of the Phoenix criteria in the era of PSMA PET/CT might be warranted. Nevertheless, the lack of anatomopathological validation and the retrospective nature of the studies are some of our limitations.
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Technical Aspects of Using a Second Magnetic Grasper to Improve the Surgical Field in Single Port Revisional Bariatric Surgery. Obes Surg 2023; 33:984-985. [PMID: 36645558 DOI: 10.1007/s11695-022-06438-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 12/21/2022] [Accepted: 12/27/2022] [Indexed: 01/17/2023]
Abstract
BACKGROUND The future of minimally invasive surgery in revisional surgery is experiencing changes with new equipment such as the magnetic assistance that can be used with single port devices in order to perform an incisionless surgery (Luengas R, Galindo J, Castro M, et al. Surg Obes Relat Dis. 2021;17(1):147-152). Magnetic assistance through an auxiliary grasper with two internal magnets serves beyond liver retraction in different steps of the surgery improving the surgical field by obtaining a better visualization and triangulation. PURPOSE Expose the feasibility of using two internal magnetic graspers by single port performing a conversion surgery of sleeve gastrectomy (SG) to Roux-en-Y gastric bypass (RYGB). METHODS A 36-year-old female patient underwent a SG in 2015 and consults in 2021 because of severe GERD with a 33-point GERD-HRQL score. She has preoperative evaluation for a conversion surgery from SG to RYGB. Using a single port device through the umbilicus, an additional 5 mm trocar was placed in the left side of the abdomen. Two internal magnets were introduced through the umbilicus, and they were controlled by two external magnets placed over the abdomen with an articulated arm. The first magnet was used for liver retraction and the second one to perform both anastomoses, close the intermesenteric and Petersen defect, acting as an auxiliary grasper. The ethical committee approval was obtained through an informed consent from the participant included in the study.
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Psychiatric Comorbidities in Pediatric HT Patients Transitioning to Adult Care. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Outcomes of Patients Supported with Heartmate Three Left Ventricular Assist Device for More Than Two Years. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Boehmiella wilsoni (Nematoda, Heligmosomoidea, Boehmiellidae fam. nov.), found in Amazonian rodents. Int J Parasitol Parasites Wildl 2020; 13:119-129. [PMID: 32995268 PMCID: PMC7508696 DOI: 10.1016/j.ijppaw.2020.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 08/17/2020] [Accepted: 08/17/2020] [Indexed: 11/27/2022]
Abstract
The genus Boehmiella was initially described as a member of the family Trichostrongylidae. Subsequently, it was assigned to the subfamily Haemonchinae in the family Haemonchidae. We analyzed parasites of spiny tree-rats, Mesomys hispidus, collected in the Amazon rainforest, which were identified as B. wilsoni based on integrative taxonomy. Using morphology, morphometry, and scanning electron microscopy (SEM), we added new data to the original description of the species. We also inferred phylogenetic hypotheses for its relationships within the Trichostrongylina, based on partial nuclear 18S and 28S rRNA genes, through Maximum Likelihood and Bayesian analyses. In conclusion, B. wilsoni does not belong to the family Haemonchidae, nor is it closely related to any other trichostrongylin family, and therefore, we propose the establishment of a new family, Boehmiellidae fam. nov., to which the genus Boehmiella is allocated. Helminth found in arboreal rodent of the Amazon region, with description of new host, new geographical distribution, new taxonomic data, and proposal of a new family to allocate the genus according to molecular and morphological analyses.
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Concurrent Immunotherapy and Stereotactic Radiosurgery for Patients with Melanoma Brain Metastases is not Associated with Increased Risk of Brain Radionecrosis. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Feasibility of a combined strategy of HPV vaccination and screening in Mexico: the FASTER-Tlalpan study experience. Hum Vaccin Immunother 2019; 15:1986-1994. [PMID: 31184976 DOI: 10.1080/21645515.2019.1619401] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
There has been a noticeable shift in discussions about cervical cancer, moving from prevention to elimination. Interventions such as FASTER, human papillomavirus (HPV) vaccination and HPV screening are innovative intervention strategies which can be utilized to begin a path to elimination. To explore the feasibility of the FASTER strategy, an evaluation was carried out in eight primary health-care centers within the Tlalpan Health-Jurisdiction of Mexico City between March 2017 and August 2018. A mixed methods approach was used to evaluate three components: infrastructure, patient acceptability, and health-care professionals' perceptions. This included checklists of requirements for the infrastructure rollout of FASTER and interviews with women and health-care professionals. Nearly all (93%) of the 3,474 women aged 25-45 years accepted HPV vaccination as part of a combined vaccination and screening program. The main reason for acceptance was prevention, while having doubts about the vaccine's benefits was the main reason for refusal. Most of the 24 health-care professionals had a positive opinion toward HPV vaccination and identified the need to increase dissemination, inform the population clearly and concisely and currently extend the age range for vaccination. The evaluation of eight primary health-care centers showed they had the necessary infrastructure for the development of a joint HPV prevention strategy, but many centers required improvements to become more efficient. Together these findings suggest that although HPV vaccine acceptance was high, there is the need to increase education and awareness among potential vaccine recipients and health-care professionals to implement the FASTER strategy.
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Taxonomy of Physaloptera mirandai (Nematoda: Physalopteroidea) based in three-dimensional microscopy and phylogenetic positioning. Acta Trop 2019; 195:115-126. [PMID: 31039334 DOI: 10.1016/j.actatropica.2019.04.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 02/08/2019] [Accepted: 04/01/2019] [Indexed: 02/05/2023]
Abstract
Gastrointestinal nematodes are important ecological assets for the maintenance of the biodiversity in the Atlantic Forest in Brazil. They parasitize a number of animals of the local fauna, in which some species can promote serious injuries in the stomach wall of their hosts, which may lead to death. Among these nematodes, parasites of the genus Physaloptera are known to parasitize mammals (particularly carnivores and small rodents), birds and reptiles, being important for the local biodiversity. In this work, three hundred and sixty-two nematodes were recovered from the stomach of twenty-one Metachirus nudicaudatus (Didelphimorphia: Didelphidae) collected in Duas Bocas Biological Reserve, State of Espírito Santo, one of the largest Atlantic Forest remnants and important wildlife refuge of the Atlantic Forest in Brazil. Analysis using fluorescence and scanning electron microscopy as well as phylogenetic assessment using the mitochondrial cytochrome c oxidase subunit I gene showed that the parasites belong to the Physaloptera. Our results show details of the nematode morphology including the cloacal papillae distribution, cuticular topography details, 2D and 3D measurements of the structures with taxonomic importance. Molecular data confirmed the validity of P. mirandai and the phylogeny supported the monophyly of the assemblage formed by Physaloptera and Turgida. The use of a combination of quantitative and multidimensional microscopy tools, such as 3D reconstruction and modeling, allied to phylogenetic analysis may provide grounds for a new approach on helminth taxonomy and structural characterization.
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Combined effect of conventional antimicrobials with essential oils and their main components against resistant
Streptococcus suis
strains. Lett Appl Microbiol 2019; 68:562-572. [DOI: 10.1111/lam.13151] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 03/07/2019] [Accepted: 03/07/2019] [Indexed: 02/06/2023]
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P2.06-26 Ribonucleotide Reductase Subunit M1 but not M2 is Associated to Better PFS in Patients with Advanced Stage Mesothelioma. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Prevalence and diversity of Salmonella spp., Campylobacter spp., and Listeria monocytogenes in two free-range pig slaughterhouses. Food Control 2018. [DOI: 10.1016/j.foodcont.2018.04.053] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Importance of 68Ga-PSMA PET/CT in hospital practice. View of the radiation oncologist. Rev Esp Med Nucl Imagen Mol 2018; 37:302-314. [PMID: 30139594 DOI: 10.1016/j.remn.2018.07.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 07/09/2018] [Accepted: 07/12/2018] [Indexed: 12/19/2022]
Abstract
Radiotherapy is a treatment with curative intent, both in patients with primary diagnosis of prostate cancer (PCa) and in patients presenting with biochemical recurrence after radical prostatectomy (RP). Moreover, the use of stereotactic body radiotherapy as a metastasis directed therapy in patients with oligometastatic PCa has significantly increased in the recent years. Conventional imaging techniques, including transrectal ultrasound, computed tomography (CT), morphologic magnetic resonance and bone scintigraphy have traditionally played a minor role in all those clinical scenarios due to its low diagnostic accuracy. The recent development of the positron emission tomography (PET) radiotracer 68Ga-PSMA binding to the prostate specific membrane antigen (PSMA), a transmembrane glycoprotein overexpressed in PCa cells, has shown promising results. Detection rates for PCa lesions are higher than CT and higher than the best technique available, the PET/CT with choline. Its superiority has been demonstrated even at very low PSA levels (<1 ng/ml). This increase in diagnostic accuracy represents a potential impact on patient management, especially in radiotherapy. Even if this imaging technique is already available for routine clinical practice in some European countries, in Spain, unfortunately, there is very limited access. In this review, we analyze the main studies that investigate the usefulness of 68Ga-PSMA PET/CT in patients with PCa and its potential impact on radiotherapy treatments. In addition, we compared the 68Ga-PSMA PET/CT, with the multiparametric magnetic resonance imaging and the PET/CT with choline, in the different clinical scenarios.
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Seroprevalence and risk factors of exposure to caprine arthritis-encephalitis virus in southern Spain. Vet Rec 2017; 180:226. [DOI: 10.1136/vr.104014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/21/2016] [Indexed: 11/04/2022]
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Characterization of a Biomimetic Mesophase Composed of Nonionic Surfactants and an Aqueous Solvent. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:10268-10275. [PMID: 27618561 DOI: 10.1021/acs.langmuir.6b02744] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We have investigated the physical and biomimetic properties of a sponge (L3) phase composed of pentaethylene glycol monododecyl ether (C12E5), a nonionic surfactant, an aqueous solvent, and a cosurfactant. The following cosurfactants, commonly used for solubilizing membrane proteins, were incorporated: n-octyl-β-d-glucopyranoside (β-OG), n-dodecyl-β-d-maltopyranoside (DDM), 4-cyclohexyl-1-butyl-β-d-maltoside (CYMAL-4), and 5-cyclohexyl-1-pentyl-β-d-maltoside (CYMAL-5). Partial phase diagrams of these systems were created. The L3 phase was characterized using crossed polarizers, diffusion of a fluorescent probe by fluorescence recovery after pattern photobleaching (FRAPP), and freeze fracture electron microscopy (FFEM). By varying the hydration of the phase, we were able to tune the distance between adjacent bilayers. The characteristic distance (db) of the phase was obtained from small angle scattering (SAXS/SANS) as well as from FFEM, which yielded complementary db values. These db values were neither affected by the nature of the cosurfactant nor by the addition of membrane proteins. These findings illustrate that a biomimetic surfactant sponge phase can be created in the presence of several common membrane protein-solubilizing detergents, thus making it a versatile medium for membrane protein studies.
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[Medium vessel vasculitis in Systemic Lupus Erythematosus]. REVISTA DE LA FACULTAD DE CIENCIAS MÉDICAS 2016; 73:50-52. [PMID: 27419897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023] Open
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Short-term oral liquid ingestion decreases human milk osmolality. NUTR HOSP 2015; 32 Suppl 2:10343. [PMID: 26615312 DOI: 10.3305/nh.2015.32.sup2.10343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
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Polymorphism G1359A of the cannabinoid receptor gene (CNR1): allelic frequencies and influence on cardiovascular risk factors in a multicentre study of Castilla-Leon. J Hum Nutr Diet 2015; 29:112-7. [PMID: 25682784 DOI: 10.1111/jhn.12297] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
BACKGROUND A polymorphism (1359 G/A) of the CNR1 gene was reported as a common polymorphism in Caucasian populations and was related to cardiovascular risk factors. The present study aimed to investigate the allelic distribution of polymorphism (G1359A) of the CB1 receptor gene in a geographical area of Spain (Community of Castilla y Leon) and to evaluate the influence of this polymorphism on obesity anthropometric parameters and cardiovascular risk factors in the fasted state in obese patients. METHODS A population of 341 obese subjects was analysed. Tetrapolar electrical bioimpedance measurement, blood pressure measurement, a serial assessment of nutritional intake with 3 days of written food records and a biochemical analysis were all performed. RESULTS One hundred and seventy-seven patients (51.9%) had the genotype G1359G (wild-type group) and 164 (48.1%) patients were A carriers: G1359A (136 patients; 39.9%) or A1359A (28 patients; 8.2%) (mutant type group). The Health Area of Palencia had a lower frequency of wild-type genotype and G allelic frequency than all the other Health Areas. Segovia and Burgos Areas had a higher frequency of wild-type genotype and G allelic frequency than the other Health Areas. High-density lipoprotein (HDL) cholesterol was higher in the mutant type group and blood tryglicerides were lower in the same group. CONCLUSIONS In conclusion, the novel finding of the present study is the association of the mutant type group G1359A and A1359A with a better lipid profile (triglycerides and HDL cholesterol) than the wild-type group. The frequencies of this polymorphism are different among Health Areas of Castilla y Leon (Spain).
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Incidence and Impact of Anti-HLA-DP-Antibodies in Renal Transplantation. Transplantation 2014. [DOI: 10.1097/00007890-201407151-00260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Trauma risk perception related to alcohol, cannabis, and cocaine intake. Eur J Trauma Emerg Surg 2014; 40:693-9. [PMID: 26814784 DOI: 10.1007/s00068-014-0384-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Accepted: 01/28/2014] [Indexed: 11/28/2022]
Abstract
OBJECTIVE A high perception of risk may exert a preventive effect against the initiation of risky activities. The aims of the present study were (1) to analyze the risk perception for traumatic incidents according to drug intake (alcohol, cannabis, cocaine, no consumption) by trauma patients admitted to our hospital, and (2) to explore the influence of drugs on trauma recidivism. METHODS Between 1 November 2011 and 1 April 2012, 404 patients aged between 16 and 70 years were admitted to our hospital for trauma cases. In 363 (89.9 %) of the patients, data were gathered on age, the trauma mechanism, and the consumption of alcohol and other drugs. Out of these 363 patients, 286 (78.8 %) attended a motivational interview and reported their consumption habits and their perception of the risk of trauma after alcohol and/or illegal drug consumption, as well as the antecedents of previous traumatisms. RESULTS Alcohol and/or illegal drugs were detected in 37 % of the sample, with alcohol being the most frequently detected, followed by cannabis, cocaine, and other drugs. Among the trauma patients with no consumption, a high perception of trauma risk was associated with alcohol intake by 95.9 %, with cannabis consumption by 68.4 %, and with cocaine consumption by 53.4 %, whereas these percentages were significantly lower for patients testing positive for substances (79.3, 21.1, and 8.3 % respectively). Among the patients experiencing their first trauma, the mean age was almost 15 years younger in those who were positive for these substances than in those who were negative (p < 0.001). Finally, a history of previous trauma was reported by a majority (64 %) of the trauma patients testing positive for alcohol and/or drugs, but by a minority (36 %) of those testing negative (p < 0.001). CONCLUSIONS The low perception of risk associated with alcohol, cannabis, or cocaine consumption by trauma patients under the influence of these substances on admission may be a predisposing factor for recidivism. Recommendations for both primary and secondary prevention are presented.
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Influence of cohabitation between domestic goat (Capra aegagrus hircus) and Iberian ibex (Capra pyrenaica hispanica) on seroprevalence of infectious diseases. EUR J WILDLIFE RES 2013. [DOI: 10.1007/s10344-013-0785-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Serosurvey on Schmallenberg Virus and Selected Ovine Reproductive Pathogens in Culled Ewes From Southern Spain. Transbound Emerg Dis 2013; 61:4-11. [DOI: 10.1111/tbed.12188] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Indexed: 11/27/2022]
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The impact of domain-specific beliefs on decisions and causal judgments. Acta Psychol (Amst) 2013; 144:472-80. [PMID: 24076330 DOI: 10.1016/j.actpsy.2013.08.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2012] [Revised: 07/31/2013] [Accepted: 08/15/2013] [Indexed: 10/26/2022] Open
Abstract
Extensive evidence suggests that people often rely on their causal beliefs in their decisions and causal judgments. To date, however, there is a dearth of research comparing the impact of causal beliefs in different domains. We conducted two experiments to map the influence of domain-specific causal beliefs on the evaluation of empirical evidence when making decisions and subsequent causal judgments. Participants made 120 decisions in a two-alternative forced-choice task, framed in either a medical or a financial domain. Before each decision, participants could actively search for information about the outcome ("occurrence of a disease" or "decrease in a company's share price") on the basis of four cues. To analyze the strength of causal beliefs, we set two cues to have a generative relation to the outcome and two to have a preventive relation to the outcome. To examine the influence of empirical evidence, we manipulated the predictive power (i.e., cue validities) of the cues. Both experiments included a validity switch, where the four selectable cues switched from high to low validity or vice versa. Participants had to make a causal judgment about each cue before and after the validity switch. In the medical domain, participants stuck to the causal information in causal judgments, even when evidence was contradictory, while decisions showed an effect of both empirical and causal information. In contrast, in the financial domain, participants mainly adapted their decisions and judgments to the cue validities. We conclude that the strength of causal beliefs (1) is shaped by the domain, and (2) has a differential influence on the degree to which empirical evidence is taken into account in causal judgments and decision making.
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Endemic angiostrongyliasis in the Brazilian Amazon: natural parasitism of Angiostrongylus cantonensis in Rattus rattus and R. norvegicus, and sympatric giant African land snails, Achatina fulica. Acta Trop 2013; 125:90-7. [PMID: 23072946 DOI: 10.1016/j.actatropica.2012.10.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Revised: 10/02/2012] [Accepted: 10/05/2012] [Indexed: 10/27/2022]
Abstract
Angiostrongylus cantonensis, the rat lungworm, is one etiological agent of eosinophilic meningoencephalitis in humans. This zoonosis is frequently found in Asia and, more recently, in North America, Caribbean Island and northeastern of South America. Until now, research of A. cantonensis in southern, southeastern and northeastern regions of Brazil has been found natural infections only terrestrial and freshwater intermediate snail hosts (Achatina fulica, Sarasinula marginata, Subulina octona, Bradybaena similaris and Pomacea lineate). In this study, we examined the occurrence of helminthes in the synantropic rodents Rattus rattus and Rattus norvegicus in northern Brazil, focusing on the role of these species as vertebrate hosts of A. cantonensis and A. fulica as intermediate host have found natural. Thirty specimens of R. rattus and twelve of R. norvegicus were collected in the Guamá and Jurunas neighborhoods of the city of Belém, in the Brazilian state of Pará, of which almost 10% harbored adult worms in their pulmonary arteries. Sympatric A. fulica were found to be infected by L(3) larvae, which experimental infection confirmed to be A. cantonensis. Natural infection of snails and rodents with A. cantonensis was confirmed through morphological and morphometrical analyses of adults and larvae using light microscopy, scanning electron microscopy and molecular sequences of partial Cytochrome Oxidase subunit I. Phylogenetic analyses showed that A. cantonensis isolated from Pará, Brazil is similar to Japan isolate; once these specimens produced a single haplotype with high bootstrap support with Rio de Janeiro isolate. This study confirms that A. cantonensis is now endemic in northern Brazil, and that R. rattus and R. norvegicus act as natural definitive hosts, and A. fulica as the intermediate host of the parasite in this region.
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Temperature dependent tunneling spectroscopy in the heavy fermion CeRu2Si2 and in the antiferromagnet CeRh2Si2. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2012; 24:475602. [PMID: 23110924 DOI: 10.1088/0953-8984/24/47/475602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
CeRu(2)Si(2) and CeRh(2)Si(2) are two similar heavy fermion stoichiometric compounds located on the two sides of a magnetic quantum critical phase transition. CeRh(2)Si(2) is an antiferromagnet below T(N) = 36 K with moderate electronic masses whereas CeRu(2)Si(2) is a paramagnetic metal with particularly heavy electrons. Here we present tunneling spectroscopy measurements as a function of temperature (from 0.15 to 45 K). The tunneling conductance at 0.15 K reveals V-shaped dips around the Fermi level in both compounds, which disappear in CeRu(2)Si(2) above the coherence temperature, and in CeRh(2)Si(2) above the Néel temperature. In the latter case, two different kinds of V-shaped tunneling conductance dips are found.
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Haematological alterations in Rattus norvegicus (Wistar) experimentally infected with Echinostoma paraensei (Trematoda: Echinostomatidae). Exp Parasitol 2012; 131:300-3. [DOI: 10.1016/j.exppara.2012.04.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2011] [Revised: 04/04/2012] [Accepted: 04/12/2012] [Indexed: 11/26/2022]
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Hydration and nutrition at the end of life: a systematic review of emotional impact, perceptions, and decision-making among patients, family, and health care staff. Psychooncology 2011; 21:913-21. [DOI: 10.1002/pon.2099] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2011] [Revised: 10/13/2011] [Accepted: 10/15/2011] [Indexed: 11/10/2022]
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Scanning tunneling spectroscopy under large current flow through the sample. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2011; 82:073710. [PMID: 21806192 DOI: 10.1063/1.3615627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We describe a method to make scanning tunneling microscopy/spectroscopy imaging at very low temperatures while driving a constant electric current up to some tens of mA through the sample. It gives a new local probe, which we term current driven scanning tunneling microscopy/spectroscopy. We show spectroscopic and topographic measurements under the application of a current in superconducting Al and NbSe(2) at 100 mK. Perspective of applications of this local imaging method includes local vortex motion experiments, and Doppler shift local density of states studies.
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Factores de riesgo del síndrome respiratorio bovino en terneros lactantes de Argentina. ARCHIVOS DE ZOOTECNIA 2011. [DOI: 10.4321/s0004-05922011000100005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Physical Characterization of Zirconium Doped Zinc Oxide Thin Firms Deposited by Spray Pyrolysis. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-520-57] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTZinc oxide thin films doped with zirconium were prepared from solutions with doping material dispersed at several concentrations and using the spray pyrolysis technique.The films were deposited over sodocalcic glasses at different substrate temperatures. Effects of doping material concentration and substrate temperatures on electrical, optical, structural and morphological film properties are presented. Results show an evolution in morphology and grains size as the doping concentration is increased. Preferential growth in the (002) orientation was detected for each thin film from X ray diffractograms.
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Polymorphism Ala54Thr of fatty acid-binding protein 2: Allelic frequencies and influence on cardiovascular risk factors in a multicenter study of Castilla y Leon. ANNALS OF NUTRITION AND METABOLISM 2010; 57:163-8. [PMID: 21079390 DOI: 10.1159/000321632] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2009] [Accepted: 09/29/2010] [Indexed: 11/19/2022]
Abstract
BACKGROUND A transition of guanin to alanin at codon 54 of the fatty acid-binding protein 2 gene (FABP2) results in an amino acid substitution (Ala54 to Thr54). This polymorphism was associated with some cardiovascular risk factors. OBJECTIVE The aim of our study was to investigate the influence of the Thr54 polymorphism in the FABP2 gene on obesity anthropometric parameters and cardiovascular risk factors in the fasted state in obese subjects and the allelic distribution of this polymorphism in a geographic area of Spain. DESIGN A population of 264 obese subjects was analyzed in a cross-sectional study from all health centers of Castilla y Leon (Spain). A nutritional and biochemical evaluation was performed. The statistical analysis was performed for the combined Ala54/Thr54 and Thr54/Thr54 genotype as a dominant model. RESULTS The mean age was 41.1 ± 13.1 years and the mean BMI 36.5 ± 5.9, with 94 males (35.6%) and 170 females (74.4%). One hundred and fifty-three subjects (58%) had the genotype Ala54/Ala54 (wild-type group) and 111 (42%) participants had the genotype Ala54/Thr54 (n = 92, 34.8%) or Thr54/Thr54 (n = 19, 7.2%) (mutant-type group). The health area of Valladolid had a lower frequency of wild-type genotype and Ala54 allelic frequency than all the other health areas of Castilla y Leon. C-reactive protein was higher in the mutant-type than the wild-type group (3.4 ± 5.6 vs. 7.9 ± 10.4 mg/dl; p < 0.05). CONCLUSION The finding of this study is the association of the Thr54/Ala54 and Thr54/Thr54 FABP2 phenotypes with higher levels of C-reactive protein without relation to insulin resistance. Frequencies of this polymorphism are different among health areas of Castilla y Leon.
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[Convulsive status epilepticus: clinico-epidemiologic characteristics and risk factors in Peru]. Neurologia 2010; 25:478-484. [PMID: 20964998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023] Open
Abstract
INTRODUCTION Convulsive status epilepticus constitutes a medical emergency that requires a fast and aggressive management with the objective to prevent neuronal damage and systemic complications. The objective is to determine clinico-epidemiologic characteristics and risk factors associated with convulsive status epilepticus in adults attended in a National Hospital from Lima-Peru in a period of four years. METHODS Case-control study. Cases were constituted by patients admitted for convulsive status epilepticus in the Adult Emergency Service of National Hospital Dos de Mayo between January 2003 and December 2007. Controls were patients with diagnoses of epilepsy that received treatment in outpatient service of neurology, couplet by age and sex with the group of cases. Medical histories were reviewed and patients were interviewed obtaining clinical, epidemiologic and possible risk factors to convulsive status epilepticus that were registered in an instrument of data recorded. RESULTS 41 cases of convulsive status epilepticus were presented. 68.3% were male, 28.6% had age between 20 and 29 years old and 15.5% resided in endemic areas of neurocysticercosis. The more frequent aetiologies were remote symptomatic secondary crisis to cranio encephalic trauma and neurocysticercosis and idiopathic; 26.8% showed some intercurrent infection; while, mortality was of 7.3%. Factors associated with a convulsive status epilepticus were the abrupt interruption or suspension of drugs used for the control of convulsions (p=0.038), chronic intake of alcohol (p=0.030) and irregular antiepileptic treatment (p=0.006). CONCLUSIONS Aetiologies more frequent in the hospital studied from Lima-Peru are remote symptomatic secondary crisis to cranio encephalic trauma, neurocysticercosis and idiopathic. The irregular antiepilepticus treatment constitutes a risk factor to convulsive status epilepticus.
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Estado epiléptico convulsivo: características clínico-epidemiológicas y factores de riesgo en Perú. Neurologia 2010. [DOI: 10.1016/j.nrl.2010.07.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Abstract
This paper reports an experiment intended to demonstrate that the vertical jumping response can be learned using a signaled-avoidance technique. A photoelectric cell system was used to record the response. Twenty female rats, divided equally into two groups, were exposed to intertrial intervals of either 15 or 40 s. Subjects had to achieve three successive criteria of acquisition: 3, 5, and 10 consecutive avoidance responses. Results showed that both groups learned the avoidance response, requiring increasingly larger numbers of trials as the acquisition criteria increased. No significant effect of intertrial interval was observed.
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Polymorphism Trp64Arg of beta 3 adrenoreceptor gene: allelic frequencies and influence on insulin resistance in a multicenter study of Castilla-León. NUTR HOSP 2010; 25:299-303. [PMID: 20449541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2009] [Accepted: 11/22/2009] [Indexed: 05/29/2023] Open
Abstract
BACKGROUND AND OBJECTIVE The genetic variant (Trp64Arg) is a missense mutation located within the beta3 adrenoreceptor (Beta3AR). The aim of our study was to investigate the influence of Trp64Arg polymorphism in the Beta3AR gene on insulin resistance in obese patients and the allelic distribution of this polymorphismin a geographic area of Spain. DESIGN A population of 264 obese patients was analyzed. A bioimpedance, blood pressure, an assessment of nutritional intake, and biochemical parameters were measured. The beta 3 adrenoreceptor gene polymorphism(Trp64Arg) was genotyped. RESULTS Two hundred and twenty six patients (77 males/149 females) (85.6%) had the genotype Trp64/Trp64 (wild type group) with and average age of 41.12 +/- 13.1 years and 38 patients (16 males/22 females) Trp64/Arg64 (14.4%) (mutant type group) with an average age of 40.5 +/- 12.7 years. High frequencies of Arg64 allele were observed in Salamanca and Valladolid. In the mutant type group, HOMA (3.75 +/- 2.77 vs 5.27 +/- 5.4; p < 0.05) was higher than wild type group. CONCLUSION The finding of this study is the association of the Trp64/Arg64 Beta3AR with higher levels of HOMA. Frequencies of this polymorphism are different among geographic areas.
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Spirurids from Gracilinanus agilis (Marsupialia: Didelphidae) in Brazilian Pantanal wetlands with a new species of Physaloptera (Nematoda: Spirurida). Vet Parasitol 2009; 163:87-92. [DOI: 10.1016/j.vetpar.2009.03.046] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2008] [Revised: 03/18/2009] [Accepted: 03/25/2009] [Indexed: 10/20/2022]
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Clonal dissemination of Enterococcus faecalis ST201 and Enterococcus faecium CC17–ST64 containing Tn5382–vanB2 among 16 hospitals in Chile. Clin Microbiol Infect 2009; 15:586-8. [DOI: 10.1111/j.1469-0691.2009.02741.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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41
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Factores de riesgo del Síndrome respiratorio bovino en terneros lactantes de Argentina. ARCHIVOS DE ZOOTECNIA 2009. [DOI: 10.21071/az.v60i229.4687] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Se ha realizado un estudio epidemiológico observacional de tipo transversal para conocer los factores que actúan sobre la seropositividad de los principales agentes víricos del síndrome respiratorio bovino: el herpesvirus bovino tipo 1 (HVB1), el virus de la diarrea vírica bovina (VDVB), el virus respiratorio sincitial bovino (VRSB) y el virus de la parainfluenza 3 (VPI3). Se tomaron muestras de sangre de terneros procedentes de explotaciones lecheras situadas en las provincias argentinas de Córdoba y Santa Fé, y se cumplimentaron cuestionarios epide-miológicos. Los análisis serológicos se realizaron mediante la técnica ELISA. En total se tomaron muestras de sangre de 852 terneros procedentes de 55 explotaciones entre los años 2000 y 2002. Se realizaron cuatro modelos epidemiológicos mediante regresión logística, uno por cada virus donde, entre otras, aparecen variables asociadas a la infección relacionadas con la edad del ternero, la estación del año, el número de animales, la alimentación, las vacunaciones o el sistema de crianza.
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Confinement of a hydrophilic polymer in membrane lyotropic phases. J Colloid Interface Sci 2009; 331:185-90. [DOI: 10.1016/j.jcis.2008.11.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2008] [Revised: 11/08/2008] [Accepted: 11/11/2008] [Indexed: 11/15/2022]
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Assessment of the bacterial diversity of breast milk of healthy women by quantitative real-time PCR. Lett Appl Microbiol 2009; 48:523-8. [PMID: 19228290 DOI: 10.1111/j.1472-765x.2009.02567.x] [Citation(s) in RCA: 155] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIMS Breast milk has been described as a source of bacteria influencing the development of the infant gut microbiota. Up to the present, few studies have been focused on the application of culture-independent techniques to study bacterial diversity in breast milk. In this context, the aim of this study was to characterize the breast milk microbiota of healthy women by applying the quantitative real-time PCR technique (qRTi-PCR). METHODS AND RESULTS A total of 50 breast milk samples were analysed by qPCR to assess the presence of different bacterial genera or clusters, including the Bifidobacterium, Lactobacillus, Staphylococcus, Bacteroides, Enterococcus, Streptococcus, Clostridium cluster IV and Clostridium cluster XIVa-XIVb groups. Staphylococcus, Streptococcus, Bifidobacterium and Lactobacillus were the predominant groups and were detected in all the samples. Clostridium XIVa-XIVb and Enterococcus were detected in most of the samples in contrast to the Bacteroides and Clostridium cluster IV groups. CONCLUSIONS Our results confirm the abundance of bacterial DNA in breast milk samples and suggest that the qRTi-PCR technique has a huge potential in the microbiological analysis of human milk. SIGNIFICANCE AND IMPACT OF THE STUDY qRTi-PCR allowed the detection of bacterial DNA of streptococci, staphylococci, lactic acid bacteria and bifidobacteria in the samples of human milk, which confirms that breast milk can be an important source of bacteria and bacterial DNA to the infant gut.
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78. The Role of the Stromal Cell-Derived Factor-1 Alpha (SDF-1A)/Chemokine Receptor 4 (CXCR4) Axis in a Novel Model of De Novo Neovascularization. J Surg Res 2009. [DOI: 10.1016/j.jss.2008.11.092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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PET-TC en oncología: la importancia de un equipo multidisciplinar. RADIOLOGIA 2009; 51:6-14; quiz 118. [DOI: 10.1016/s0033-8338(09)70400-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2008] [Accepted: 10/21/2008] [Indexed: 11/26/2022]
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Geographic Factors Associated to Trypanosoma cruzi Infection in Western Mexico. Int J Infect Dis 2008. [DOI: 10.1016/j.ijid.2008.05.1021] [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] Open
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Abstract
Anatomic imaging techniques such as computed tomography (CT) and magnetic resonance imaging (MRI) have been used for many years in clinical oncology. The emergence of positron emission tomography (PET) more than a decade ago was a major breakthrough in the early diagnosis of malignant lesions, as it was based on tumour metabolism and not on anatomy. The merger of both techniques into one thanks to PET-CT cameras has made this technology the most important tool in the management of cancer patients. PET/CT with 18F-FDG is increasingly being used for staging, restaging and treatment monitoring for cancer patients with different types of tumours (lung, breast, colorectal, lymphoma, melanoma, head and neck etc.). At many institutions, PET/CT has replaced separately acquired PET and CT examinations for many oncologic indications. This replacement has occurred despite the fact that only a relatively small number of well designed prospective studies have verified imaging findings against the gold standard of histopathologic tissue evaluation. However, a large number of studies have used acceptable reference standards, such as pathology, imaging and other clinical follow-up findings, for validating PET/CT findings. The impact on the management of patients and the benefits from the information obtained from this anatomo-metabolic procedure justify the term "clinical oncology based on PET-CT" as a new concept to be applied in clinical practice.
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Helminth communities of Nectomys squamipes naturally infected by the exotic trematode Schistosoma mansoni in southeastern Brazil. J Helminthol 2007; 80:369-75. [PMID: 17125546 DOI: 10.1017/joh2006366] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The water rat Nectomys squamipes is endemic in Brazil and found naturally infected with Schistosoma mansoni. Helminth communities, their prevalences, intensity of infection and abundance in N. squamipes in an endemic area of schistosomiasis in the state of Rio de Janeiro, Brazil were studied. Four species of nematodes (Physaloptera bispiculata, Syphacia venteli, Hassalstrongylus epsilon and Litomosoides chagasfilhoi) were recovered in 85.3%, two trematodes (Schistosoma mansoni and Echinostoma paraensei) in 38.8% and one cestode species (Raillietina sp.) in 1.7% of rats examined. Rats were infected with up to five helminth species each, and these were highly aggregated in distribution. For H. epsilon and S. venteli, intensities and abundances were higher in adult male and subadult female hosts, respectively. Hassaltrongylus epsilon, P. bispiculata, S. venteli and S. mansoni were classified as dominant species, L. chagasfilhoi and E. paraensei as co-dominant and Raillietina sp. as subordinated. No significant correlation was found in the intensity of infecton between each pair of helminth species. Schistosoma mansoni was not related to any other helminth species according to their infection rates, althougth S. mansoni was well established in the natural helminth comunity of the water rat.
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Successive positive contrast in one-way avoidance behavior with Roman low-avoidance rats. Physiol Behav 2007; 90:803-8. [PMID: 17324446 DOI: 10.1016/j.physbeh.2007.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2006] [Revised: 12/23/2006] [Accepted: 01/10/2007] [Indexed: 11/18/2022]
Abstract
The inbred Roman High- (RHA-I) and Roman Low-Avoidance (RLA-I) rats, psychogenetically selected for rapid (RHA-I) vs. extremely poor (RLA-I) acquisition of two-way active avoidance, exhibit a lower or a higher level of fearfulness, respectively, that can be observed in many laboratory anxiety models. The present study analyzed the performance of female RLA-I and RHA-I rats in a successive positive contrast situation induced during one-way avoidance learning. Three groups of RLA-I and three of RHA-I rats (1-30, 30-30 and 1-1 groups, the numbers stand for the time spent in the safe compartment during the first and second phase of training) were trained to avoid an electric foot-shock administered in a "danger" compartment, by running from this compartment to a "safe" one. Only RLA-I rats showed a significant positive contrast effect, in such a way that the reinforcement increase from the lower (1 s spent in safety) to the higher reward (30 s) led to a response enhancement, surpassing the performance of rats trained with the low (1-1 s) or the high (30-30 s) reward from the beginning of training. The results are discussed in the context of an opponent process theory based upon the interaction between the motivational strength of fear and the incentive value of relief taking place during one-way avoidance learning.
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The sponge phase of a mixed surfactant system. J Colloid Interface Sci 2007; 308:485-90. [PMID: 17266977 DOI: 10.1016/j.jcis.2007.01.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2006] [Revised: 01/05/2007] [Accepted: 01/06/2007] [Indexed: 11/25/2022]
Abstract
We study the sponge phase of the mixed non-ionic/ionic surfactant system C14DMAO-TTAB-hexanol-brine. Our aim is to determine if this phase exists in this mixed system and if it preserves or changes its structure when the relative amount of the charged surfactant is increased in the mixture. SAXS, FFEM, and conductivity results show that for the same bilayer volume fraction the sponge phase preserves its global structure. We propose a method to determine the geometrical obstruction factor from electrical conductivity measurements in ionic sponge phases. Analysis of lamellar phases in the same system shows that the bilayer thickness increases when the ionic surfactant concentration is increased.
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