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1.
BMC Ecol Evol ; 24(1): 71, 2024 May 29.
Article in English | MEDLINE | ID: mdl-38811886

ABSTRACT

Home range is a fundamental characteristic of an animal natural history. The study of home range provides information on the sites where organisms forage for food, find shelter, or locate mates. Home range size and shape can change throughout the lifespan of an organism, during the year, or across seasons, driven by resource availability and the basic needs for each organism. For freshwater and semi-aquatic turtles, home range is greatly affected by water availability, humidity, and temperature throughout the year, nevertheless demographic factors such age and sex are also important determinants of home range size. In this study we estimated home range and dispersal movements for Kinosternon creaseri, Terrapene yucatana, and Rhinoclemmys areolata in a semi-tropical dry forest in central Yucatán. For a two-year period, turtles were surveyed using hoop traps and visual encounters. Twenty-one individuals (5-8 per species) were equipped with radio transmitters to track them across the landscape. Distances between relocations and home range were compared across species seasons, sex, and interactions of these variables. Monthly average movements were positively correlated with rain in the three species studied. Home range of R. areolata was larger than those of K. creaseri and T. yucatana. Home range of the three studied species were larger during the wet season. Home range overlap index within same species individuals was higher during the rainy than dry season, but overall overlap is low between and within species.


Subject(s)
Homing Behavior , Seasons , Turtles , Turtles/physiology , Animals , Female , Male , Mexico , Homing Behavior/physiology
2.
J Palliat Care ; : 8258597241256874, 2024 May 25.
Article in English | MEDLINE | ID: mdl-38794900

ABSTRACT

Objective: This study aimed to survey the practice of palliative sedation in Portugal, where data on this subject were lacking. Methods: This was a prospective multicentric study that included all patients admitted to each team that agreed to participate. Patients were followed until death, discharge, or after 3 months of follow-up. Results: The study included 8 teams: 4 as palliative care units (PCU), 1 as a hospital palliative care team (HPCT), 2 as home care (HC), and 1 as HPCT and HC. Of the 361 patients enrolled, 52% were male, the median age was 76 years, and 285 (79%) had cancer. Continuous sedation was undergone by 49 (14%) patients: 26 (53%) were male, and the median age was 76. Most patients, 46 (94%), had an oncological diagnosis. Only in a minority of cases, the family, 16 (33%), or the patient, 5 (10%), participated in the decision to sedate. Delirium was the most frequent symptom leading to sedation. The medication most used was midazolam (65%). In the multivariable analysis, only age and the combined score were independently associated with sedation; patients <76 years and those with higher levels of suffering had a higher probability of being sedated. Conclusions: The practice of continuous palliative sedation in Portugal is within the range reported in other studies. One particularly relevant point was the low participation of patients and their families in the decision-making process. Each team must have a deep discussion on this aspect.

3.
Gastroenterol Hepatol ; 47(2): 130-139, 2024 Feb.
Article in English, Spanish | MEDLINE | ID: mdl-36870478

ABSTRACT

AIMS: Patients' perception of their cleansing quality can guide strategies to improve cleansing during colonoscopy. There are no studies assessing the agreement between the quality of cleansing perceived by patients and cleansing quality assessed during colonoscopy using validated bowel preparation scales. The main aim of this study was to compare the cleansing quality reported by patients with the quality during colonoscopy using the Boston Bowel Preparation Scale (BBPS). PATIENTS AND METHODS: Consecutive patients referred to an outpatient colonoscopy were included. Four drawings representing different degrees of cleansing were designed. Patients chose the drawing that most resembled the last stool. The predictive ability of the patient's perception and agreement between the patient's perception and the BBPS were calculated. A BBPS score of <2 points in any segment was considered inadequate. RESULTS: Six hundred and thirty-three patients were included (age: 62.8±13.7 years, male: 53.4%). Overall, 107 patients (16.9%) had inadequate cleansing during colonoscopy, and in 12.2% of cases, the patient's perception was poor. The patient's perception compared to the quality of cleanliness during colonoscopy presented a positive and negative predictive value of 54.6% and 88.3%, respectively. The agreement between patient perception and the BBPS was significant (P<0.001), although fair (k=0.37). The results were similar in a validation cohort of 378 patients (k=0.41). CONCLUSIONS: The cleanliness perceived by the patient and the quality of cleanliness using a validated scale were correlated, although fair. However, this measure satisfactorily identified patients with adequate preparation. Cleansing rescue strategies may target patients who self-report improper cleaning. Registration number of the trial: NCT03830489.


Subject(s)
Cathartics , Colonoscopy , Humans , Male , Middle Aged , Aged , Colonoscopy/methods , Predictive Value of Tests , Colon , Perception , Polyethylene Glycols
4.
J Microsc ; 292(1): 47-55, 2023 Oct.
Article in English | MEDLINE | ID: mdl-37698068

ABSTRACT

We present the development of a simple, handheld cross-polarised microscope (CPM) and demonstration of imaging individual pigmented cells in human skin in vivo. In the CPM device, the cross-polarised detection approach is used to reduce the specular reflection from the skin surface and preferentially detect multiply-scattered light. The multiply-scattered light works as back illumination from within the tissue towards the skin surface, and superficial pigment such as intraepidermal melanin absorbs some spectral bands of the multiply-scattered light and cast coloured shadows. Since the light that interacted with the superficial pigment only needs to travel a short distance before it exits the skin surface, microscopic details of the pigment can be preserved. The CPM device uses a water-immersion objective lens with a high numerical aperture to image the microscopic details with minimal spherical aberrations and a small depth of focus. Preliminary results from a pilot study of imaging skin lesions in vivo showed that the CPM device could reveal three-dimensional distribution of pigmented cells and intracellular distribution of pigment. Co-registered CPM and reflectance confocal microscopy images showed good correspondence between dark, brown cells in CPM images and bright, melanin-containing cells in reflectance confocal microscopy images.

5.
Life (Basel) ; 13(4)2023 Apr 21.
Article in English | MEDLINE | ID: mdl-37109593

ABSTRACT

Advanced heart failure is a growing problem for which the best treatment is cardiac transplantation. However, the shortage of donors' hearts made left ventricular assist devices as destination therapy (DT-LVAD) a highly recommended alternative: they improved mid-term prognosis as well as patients' quality of life. Current intracorporeal pumps with a centrifugal continuous flow evolved in the last few years. Since 2003, when first LVAD was approved for long-term support, smaller device sizes with better survival and hemocompatibility profile were reached. The most important difficulty lies in the moment of the implant. Recent indications range from INTERMACS class 2 to 4, with close monitoring in intermediate cases. Moreover, a large multiparametric study is needed for considering the candidacy: basal situation, with a special interest in frailty, comorbidities, including renal and hepatic dysfunction, and medical background, considering every prior cardiac condition, must be evaluated. In addition, some clinical risk scores can be helpful to measure the possibility of right heart failure or morbi-mortality. With this review, we sought to summarize all the device improvements, with their updated clinical results, as well as to focus on all the patient selection criteria.

6.
Enferm. infecc. microbiol. clín. (Ed. impr.) ; 41(2): 70-78, Feb. 2023. tab, graf, ilus
Article in Spanish | IBECS | ID: ibc-215774

ABSTRACT

Objetivo: Comparar las características clínicas, los tratamientos y la evolución de los pacientes críticos con neumonía por COVID-19 atendidos en unidades de cuidados intensivos (UCI) tras un año de pandemia. Metodología: Estudio multicéntrico, prospectivo, en el que se incluyó pacientes críticos COVID-19 en 9 UCI del noroeste de España. Se compararon las características clínicas, los tratamientos y la evolución de pacientes ingresados en UCI durante los meses de marzo-abril de 2020 (periodo1) con pacientes ingresados en enero-febrero de 2021 (periodo2). Resultados: Se incluyeron 337 pacientes (98 en el periodo1 y 239 en el periodo2). En el periodo2 menos pacientes requirieron ventilación mecánica invasiva (VMI) (65% vs 84%, p<0,001), utilizándose con mayor frecuencia cánulas nasales de alto flujo (CNAF) (70% vs 7%, p<0,001), ventilación mecánica no invasiva (VMNI) (40% vs 14%, p<0,001), corticoides (100% vs 96%, p=0,007) y posición de decúbito prono tanto en pacientes despiertos (42% vs 28%, p=0,012) como en pacientes intubados (67% vs 54%, p=0,034). Los días de VMI, de estancia en UCI y hospitalaria fueron inferiores en el periodo2. La mortalidad fue similar en los dos periodos estudiados (16% vs 17%). Conclusiones: Tras un año de pandemia, observamos que en los pacientes ingresados en UCI se ha utilizado con mayor frecuencia CNAF, VMNI, uso del decúbito prono y corticoides, disminuyendo los pacientes en VMI, así como los tiempos de estancia en UCI y de estancia hospitalaria. La mortalidad ha sido similar en los dos periodos a estudio.(AU)


Objective: To compare the clinical characteristics, treatments, and evolution of critical patients with COVID-19 pneumonia treated in intensive care units (ICU) after one year of pandemic. Methodology: Multicenter, prospective study, which included critical COVID-19 patients in 9 ICUs in northwestern Spain. The clinical characteristics, treatments, and evolution of patients admitted to the ICU during the months of March-April 2020 (period1) were compared with patients admitted in January-February 2021 (period2). Results: 337 patients were included (98 in period1 and 239 in period2). In period2, fewer patients required invasive mechanical ventilation (IMV) (65% vs. 84%, P<.001), using high-flow nasal cannulas (CNAF) more frequently (70% vs. 7%, P<.001), ventilation non-invasive mechanical (NIMV) (40% vs. 14%, P<.001), corticosteroids (100% vs. 96%, P=.007) and prone position in both awake (42% vs. 28%, P=.012), and intubated patients (67% vs. 54%, P=.034). The days of IMV, ICU stay and hospital stay were lower in period2. Mortality was similar in the two periods studied (16% vs. 17%). Conclusions: After one year of pandemic, we observed that in patients admitted to the ICU, CNAF, NIMV, use of the prone position, and corticosteroids have been used more frequently, reducing the number of patients in IMV, and the length of stay in the ICU and hospital stay. Mortality was similar in the two study periods.(AU)


Subject(s)
Humans , Male , Female , Pandemics , Coronavirus Infections , Severe acute respiratory syndrome-related coronavirus , Critical Care , Clinical Evolution , Prone Position , Adrenal Cortex Hormones , Communicable Diseases , Microbiology , Spain , Prospective Studies
7.
Enferm Infecc Microbiol Clin ; 41(2): 70-78, 2023 Feb.
Article in Spanish | MEDLINE | ID: mdl-34305229

ABSTRACT

Objective: To compare the clinical characteristics, treatments, and evolution of critical patients with COVID-19 pneumonia treated in intensive care units (ICU) after one year of pandemic. Methodology: Multicenter, prospective study, which included critical COVID-19 patients in 9 ICUs in northwestern Spain. The clinical characteristics, treatments, and evolution of patients admitted to the ICU during the months of March-April 2020 (period 1) were compared with patients admitted in January-February 2021 (period 2). Results: 337 patients were included (98 in period 1 and 239 in period 2). In period 2, fewer patients required invasive mechanical ventilation (IMV) (65% vs. 84%, P < .001), using high-flow nasal cannulas (CNAF) more frequently (70% vs. 7%, P < .001), ventilation non-invasive mechanical (NIMV) (40% vs. 14%, P < .001), corticosteroids (100% vs. 96%, P = .007) and prone position in both awake (42% vs. 28%, P = .012), and intubated patients (67% vs. 54%, P = .034). The days of IMV, ICU stay and hospital stay were lower in period 2. Mortality was similar in the two periods studied (16% vs. 17%). Conclusions: After one year of pandemic, we observed that in patients admitted to the ICU, CNAF, NIMV, use of the prone position, and corticosteroids have been used more frequently, reducing the number of patients in IMV, and the length of stay in the ICU and hospital stay. Mortality was similar in the two study periods.

8.
Microbes Infect ; 25(1-2): 105019, 2023.
Article in English | MEDLINE | ID: mdl-35781097

ABSTRACT

Salmonella enterica Typhimurium represents one of the most frequent causal agents of food contamination associated to gastroenteritis. The sequence type ST19 is the founder and worldwide prevalent genotype within this serotype, but its replacement by emerging genotypes has been recently reported. Particularly, the ST213 genotype has replaced it as the most prevalent in clinical and contaminated food samples in Mexico and has been recently reported in several countries. In this study, the in vitro and in vivo virulence of ST213 and ST19 strains isolated from food samples in Mexico was evaluated. Three out of the five analyzed ST213 strains, showed a greater internalization capacity and increased secretion of interleukins IL-8 and IL-6 of Caco-2 cells than the ST19 strains. Microbiological counts in feces and tissues showed the ability of all strains tested to establish infection in the rat model. The ST213 strains also caused histopathological damage, characteristic of gastroenteritis in Wistar rats. In contrast to the in vitro result, one of the ST19 strains showed marked damage in the test animals. The ST213 genotype strains showed in vitro and in vivo virulence variability, but significantly higher than the observed in the ST19 genotype strains, thus such emergent genotype represents a public health concern.


Subject(s)
Gastroenteritis , Salmonella enterica , Humans , Rats , Animals , Virulence/genetics , Serogroup , Caco-2 Cells , Rats, Wistar , Salmonella typhimurium/genetics , Genotype
9.
Leuk Lymphoma ; 64(3): 679-690, 2023 03.
Article in English | MEDLINE | ID: mdl-36577016

ABSTRACT

Myelodysplastic syndromes (MDS) are a heterogeneous group of diseases without a care standard and show variability in treatment outcomes. This Spanish, observational, prospective study ERASME (CEL-SMD-2012-01) assessed the evolution of newly diagnosed and treatment-naïve high-risk MDS patients (according to IPPS-R). 204 patients were included: median age 73.0 years, 54.4% males, 69.6% 0-1 ECOG, and 94.6% with comorbidities. Active treatment was the most common strategy (52.0%) vs. stem cell transplantation (25.5%) and supportive care/watchful-waiting (22.5%). Overall (median) event-free survival was 7.9 months (9.1, 8.3, and 5.3); progression-free survival: 10.1 months (12.9, 12.8, and 4.3); and overall survival: 13.8 months (15.4, 14.9; 8.4), respectively, with significant differences among groups. Adverse events (AEs) of ≥3 grade were reported in 72.6% of patients; serious AEs reported in 60.6%. 33.1% of patients died due to AEs. Three patients developed second primary malignant neoplasms (median: 8.2 months). Our study showed better outcomes in patients receiving active therapy early after diagnosis.


Subject(s)
Hematopoietic Stem Cell Transplantation , Myelodysplastic Syndromes , Male , Humans , Aged , Female , Prospective Studies , Myelodysplastic Syndromes/therapy , Myelodysplastic Syndromes/drug therapy , Treatment Outcome , Hematopoietic Stem Cell Transplantation/adverse effects , Stem Cell Transplantation
10.
Gastrointest Endosc ; 97(3): 528-536.e1, 2023 03.
Article in English | MEDLINE | ID: mdl-36228695

ABSTRACT

BACKGROUND AND AIMS: Artificial intelligence-based computer-aid detection (CADe) devices have been recently tested in colonoscopies, increasing the adenoma detection rate (ADR), mainly in Asian populations. However, evidence for the benefit of these devices in the occidental population is still low. We tested a new CADe device, namely, ENDO-AID (OIP-1) (Olympus, Tokyo, Japan), in clinical practice. METHODS: This randomized controlled trial included 370 consecutive patients who were randomized 1:1 to CADe (n = 185) versus standard exploration (n = 185) from November 2021 to January 2022. The primary endpoint was the ADR. Advanced adenoma was defined as ≥10 mm, harboring high-grade dysplasia, or with a villous pattern. Otherwise, the adenoma was nonadvanced. ADR was assessed in both groups stratified by endoscopist ADR and colon cleansing. RESULTS: In the intention-to-treat analysis, the ADR was 55.1% (102/185) in the CADe group and 43.8% (81/185) in the control group (P = .029). Nonadvanced ADRs (54.8% vs 40.8%, P = .01) and flat ADRs (39.4 vs 24.8, P = .006), polyp detection rate (67.1% vs 51%; P = .004), and number of adenomas per colonoscopy were significantly higher in the CADe group than in the control group (median [25th-75th percentile], 1 [0-2] vs 0 [0-1.5], respectively; P = .014). No significant differences were found in serrated ADR. After stratification by endoscopist and bowel cleansing, no statistically significant differences in ADR were found. CONCLUSIONS: Colonoscopy assisted by ENDO-AID (OIP-1) increases ADR and number of adenomas per colonoscopy, suggesting it may aid in the detection of colorectal neoplastic lesions, especially because of its detection of diminutive and flat adenomas. (Clinical trial registration number: NCT04945044.).


Subject(s)
Adenoma , Colonic Polyps , Colorectal Neoplasms , Polyps , Humans , Artificial Intelligence , Colorectal Neoplasms/diagnostic imaging , Colorectal Neoplasms/epidemiology , Colonoscopy , Polyps/diagnosis , Adenoma/diagnostic imaging , Adenoma/epidemiology , Colonic Polyps/diagnostic imaging
11.
Article in English | MEDLINE | ID: mdl-35907774

ABSTRACT

OBJECTIVE: To compare the clinical characteristics, treatments, and evolution of critical patients with COVID-19 pneumonia treated in Intensive Care Units (ICU) after one year of pandemic. METHODOLOGY: Multicenter, prospective study, which included critical COVID-19 patients in 9 ICUs in northwestern Spain. The clinical characteristics, treatments, and evolution of patients admitted to the ICU during the months of March-April 2020 (period 1) were compared with patients admitted in January-February 2021 (period 2). RESULTS: 337 patients were included (98 in period 1 and 239 in period 2). In period 2, fewer patients required invasive mechanical ventilation (IMV) (65% vs 84%, p < 0.001), using high-flow nasal cannulas (CNAF) more frequently (70% vs 7%, p < 0.001), ventilation non-invasive mechanical (NIMV) (40% vs 14%, p < 0.001), corticosteroids (100% vs 96%, p = 0.007) and prone position in both awake (42% vs 28%, p = 0.012), and intubated patients (67% vs 54%, p = 0.034). The days of IMV, ICU stay and hospital stay were lower in period 2. Mortality was similar in the two periods studied (16% vs 17%). CONCLUSIONS: After 1 year of pandemic, we observed that in patients admitted to the ICU, CNAF, NIMV, use of the prone position, and corticosteroids have been used more frequently, reducing the number of patients in IMV, and the length of stay in the ICU and hospital stay. Mortality was similar in the two study periods.


Subject(s)
COVID-19 , Humans , COVID-19/epidemiology , COVID-19/therapy , Prospective Studies , Pandemics , SARS-CoV-2 , Intensive Care Units
12.
J Comp Pathol ; 199: 8-11, 2022 Nov.
Article in English | MEDLINE | ID: mdl-36252388

ABSTRACT

Melanocyte-derived tumours are common in humans and animals and their spontaneous occurrence in dogs and the clinicopathological progression in malignant presentations is comparable with humans. Melanomas are a heterogeneous group of malignant neoplasms and several subtypes have been classified, including angiomatoid melanoma, of which only five cases have been reported in humans but none in animals. We now document cases of primary angiomatoid melanoma in the skin and oral cavity of two dogs. Neoplastic cells resembling endothelial cells that lined large blood vessels in the tumours were immunonegative for CD34 but intensely positive for SOX10.


Subject(s)
Dog Diseases , Melanoma , Mouth Neoplasms , Skin Neoplasms , Humans , Dogs , Animals , Endothelial Cells/pathology , Mouth Neoplasms/veterinary , Dog Diseases/pathology , Melanoma/veterinary , Melanoma/pathology , Skin Neoplasms/veterinary
13.
Biology (Basel) ; 11(10)2022 Oct 08.
Article in English | MEDLINE | ID: mdl-36290380

ABSTRACT

In the present study, a culture of Chaetoceros muelleri, a cosmopolitan planktonic diatom microalga present in the Sea of Cortez, was established under controlled laboratory conditions. A sulfated polysaccharide (CMSP) extraction was carried out from the biomass obtained, resulting in a yield of 2.2% (w/w of dry biomass). The CMSP sample was analyzed by Fourier transform infrared spectroscopy, showing bands ranging from 3405 to 590 cm-1 and a sulfate substitution degree of 0.10. Scanning electron microscopy with elemental analysis revealed that the CMSP particles are irregularly shaped with non-acute angles and contain sulfur. High-performance liquid chromatography coupled to a dynamic light-scattering detector yielded molecular weight (Mw), polydispersity index (PDI), intrinsic viscosity [η], and hydrodynamic radius (Rh) values of 4.13 kDa, 2.0, 4.68 mL/g, and 1.3 nm, respectively, for the CMSP. This polysaccharide did not present cytotoxicity in CCD-841 colon cells. The antioxidant activity and the glycemic index of the CMSP were 23% and 49, respectively, which gives this molecule an added value by keeping low glycemic levels and exerting antioxidant activity simultaneously.

14.
Pharmaceuticals (Basel) ; 15(9)2022 Aug 26.
Article in English | MEDLINE | ID: mdl-36145283

ABSTRACT

Arabinoxylans (AX) microcapsules loaded with insulin were prepared by enzymatic gelation of AX, using a triaxial electrospray method. The microcapsules presented a spherical shape, with an average size of 250 µm. The behavior of AX microcapsules was evaluated using a simulator of the human intestinal microbial ecosystem. AX microcapsules were mainly (70%) degraded in the ascending colon. The fermentation was completed in the descending colon, increasing the production of acetic, propionic, and butyric acids. In the three regions of the colon, the fermentation of AX microcapsules significantly increased populations of Bifidobacterium and Lactobacillus and decreased the population of Enterobacteriaceae. In addition, the results found in this in vitro model showed that the AX microcapsules could resist the simulated conditions of the upper gastrointestinal system and be a carrier for insulin delivery to the colon. The pharmacological activity of insulin-loaded AX microcapsules was evaluated after oral delivery in diabetic rats. AX microcapsules lowered the serum glucose levels in diabetic rats by 75%, with insulin doses of 25 and 50 IU/kg. The hypoglycemic effect and the insulin levels remained for more than 48 h. Oral relative bioavailability was 13 and 8.7% for the 25 and 50 IU/kg doses, respectively. These results indicate that AX microcapsules are a promising microbiota-activated system for oral insulin delivery in the colon.

15.
Europace ; 24(11): 1788-1799, 2022 11 22.
Article in English | MEDLINE | ID: mdl-35851611

ABSTRACT

AIMS: To determine the spectral dynamics of early spontaneous polymorphic ventricular tachycardia and ventricular fibrillation (PVT/VF) in humans. METHODS AND RESULTS: Fifty-eight self-terminated and 173 shock-terminated episodes of spontaneously initiated PVT/VF recorded by Medtronic implanted cardiac defibrillators (ICDs) in 87 patients with various cardiac pathologies were analyzed by short fast Fourier transform of shifting segments to determine the dynamics of dominant frequency (DF) and regularity index (RI). The progression in the intensity of DF and RI accumulations further quantified the time course of spectral characteristics of the episodes. Episodes of self-terminated PVT/VF lasted 8.6 s [95% confidence interval (CI): 8.1-9.1] and shock-terminated lasted 13.9 s (13.6-14.3) (P < 0.001). Recordings from patients with primarily electrical pathologies displayed higher DF and RI values than those from patients with primarily structural pathologies (P < 0.05) independently of ventricular function or antiarrhythmic drug therapy. Regardless of the underlying pathology, the average DF and RI intensities were lower in self-terminated than shock-terminated episodes [DF: 3.67 (4.04-4.58) vs. 4.32 (3.46-3.93) Hz, P < 0.001; RI: 0.53 (0.48-0.56) vs. 0.63 (0.60-0.65), P < 0.001]. In a multivariate analysis controlled by the type of pathology and clinical variables, regularity remained an independent predictor of self-termination [hazard ratio: 0.954 (0.928-0.980)]. Receiver operating characteristic (ROC) curve analysis of DF and RI intensities demonstrated increased predictability for self-termination in time with 95% CI above the 0.5 cut-off limit at about t = 8.6 s and t = 6.95 s, respectively. CONCLUSION: Consistent with the notion that fast organized sources maintain PVT/VF in humans, reduction of frequency and regularity correlates with early self-termination. Our findings might help generate ICD methods aiming to reduce inappropriate shock deliveries.


Subject(s)
Defibrillators, Implantable , Tachycardia, Ventricular , Humans , Tachycardia, Ventricular/diagnosis , Tachycardia, Ventricular/therapy , Arrhythmias, Cardiac , Ventricular Fibrillation/diagnosis , Ventricular Fibrillation/therapy
16.
Environ Anal Health Toxicol ; 37(4): e2022034-0, 2022 Dec.
Article in English | MEDLINE | ID: mdl-36916047

ABSTRACT

This study aimed to evaluate whether aluminum chloride (AlCl3) causes hematological changes in the peripheral blood of Sprague-Dawley (SD) rats. Five groups of female SD rats were intragastrically administered with 4 different concentrations of AlCl3 for 5 days a week for a total of 90 days. The aluminum concentration was determined via graphite furnace atomic absorption spectroscopy. Analysis of serum iron-kinetic profiles, blood cytometry outcomes, and blood smears of the blood samples. Scanning electron microscopy (SEM) and Raman spectroscopy were used to search for structural and ultrastructural changes, respectively. Blood aluminum concentration ranged 12.38-16.24 µg/L with no significant difference between experimental treatments. At the AlCl3 concentration of 40 mg Al/kg bw of rats/day, the mean ferritin value in the serum iron kinetic profile was 29.81±6.1 ng/mL, and this value showed a significant difference between experimental treatments. Blood cytometry revealed that there were 6.45-7.11×106 cells/µL erythrocytes, 8.91-9.32×103 cells/µL leukocytes, and 477.2-736.3×103 cells/µL platelets along with a hemoglobin of 37.38-41.93 g/dL and hematocrit level of 37.38-41.93%; the experimental treatments showed no significant differences. Erythrocyte structural analysis using SEM showed no differences between experimental treatments, whereas ultrastructural evaluation using Raman spectroscopy made it possible to identify the following bands: 741, 1123, 1350, 1578, and 1618 cm-1, which were respectively associated with the following vibrational modes and compounds: vibration of the tryptophan ring, asymmetric C-O-C stretching of glucose, C-H curve of tryptophan, C=C stretching of the heme group, and C-N stretching of the heme group, with no significant differences between experimental treatments. Therefore, AlCl3 administration does not induce ultrastructural changes in the erythrocyte membrane. This study revealed that serum ferritin concentration was the only parameter affected by AlCl3 exposure at 40 mg of Al/kg bw of rats/day.

18.
Article in Spanish | LILACS | ID: biblio-1384318

ABSTRACT

RESUMEN La Dermatoglifia ha sido utilizada como herramienta para identificar la relación de esta con las capacidades físicas dentro de diferentes tipos de disciplinas deportivas. El presente documento tuvo como objetivo, identificar los hallazgos de investigaciones a nivel mundial, mostrando los resultados existentes entre los dermatoglifos y la capacidad de la fuerza en el rendimiento deportivo. Método: la búsqueda incluye publicaciones en revistas indexadas en los idiomas inglés, portugués y español. Se utilizaron las siguientes bases de datos: Scopus, Scielo, Redalyc, Pubmed, Sportdiscus, Science Direct y Biblioteca Regional de Salud, para la búsqueda de información se definieron varias palabras clave. Se realizó la búsqueda y luego la revisión, donde se identificaron 56 artículos, de los cuales seis cumplieron con los criterios de inclusión. Resultados y conclusiones: se evidenció que la mayor parte de investigaciones son casos y controles, algunos con altos niveles de sesgo por eso su clasificación fue de 2+ y 3 (Escala SIGN). Los resultados en esta revisión sustentan la relación entre la predominancia del patrón de Presilla y el desarrollo de la fuerza sin discriminar tipo de deporte, género y edad de los practicantes, país de procedencia, composición corporal o características genéticas.


ABSTRACT Dermatoglyphics have been used as a tool to identify its relationship with physical capacities within different types of sports disciplines. The present document aimed to identify research findings worldwide, showing the existing results between dermatoglyphics and the force capacity in sports performance. Method: The search includes publications in indexed journals in the English, Portuguese and Spanish languages. The following databases were used: Scopus, Scielo, Redalyc, Pubmed, Sportdiscus, Science Direct and Regional Health Library, for the information search several key words were defined. The search and then the review were carried out, where 56 articles were identified, of which 6 met the inclusion criteria. Results and conclusions: It was evidenced that most of the investigations are cases and controls, some with high levels of bias, which is why their classification was 2+ and 3 (SIGN Scale). The results in this review support the relationship between the predominance of the Clip pattern and the development of strength without discriminating type of sport, gender and age of the practitioners, country of origin, body composition or genetic characteristics.


Subject(s)
Humans , Hand Strength , Dermatoglyphics , Athletic Performance/statistics & numerical data , Periodicals as Topic , Publications , Systematic Review
19.
Multimed (Granma) ; 25(6): e1348, 2021. tab
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1356532

ABSTRACT

RESUMEN Introducción: la hemorragia digestiva alta constituye toda pérdida hemática de volumen suficiente como para producir hematemesis, melena o ambas, cuyo origen se encuentra entre el esfínter esofágico superior y el ángulo de Treitz. Objetivo: determinar los factores predictivos de mortalidad en pacientes con hemorragia digestiva alta. Métodos: se realizó un estudio observacional, analítico, de cohorte prospectiva. Se seleccionó una muestra de 456 pacientes mayores de 15 años con el diagnóstico clínico de hemorragia digestiva alta admitidos en el cuerpo de guardia de cirugía general y unidad de cuidados intensivos y emergentes del Hospital Celia Sánchez Manduley, Manzanillo, entre enero de 2020 a diciembre de 2021. Se identificó una cohorte de pacientes egresados vivos (n=415) y una cohorte de pacientes fallecidos (n=41). Se realizó un análisis bivariado y posteriormente un análisis multivariado. Resultados: el modelo más ajustado de los factores predictivos de mortalidad quedó constituido por las siguientes variables: edad mayor de 60 años, shock hipovolémico, insuficiencia cardíaca, insuficiencia hepática yhemorragia recidivante. Conclusiones: se obtuvo un modelo ajustado con los factores predictivos de mortalidad en pacientes con hemorragia digestiva alta. Por lo tanto, podremos egresar precozmente a un paciente con bajo riesgo de mortalidad, mientras que podemos considerar el ingreso de un paciente de alto riesgo en la unidad de cuidados intensivos.


ABSTRACT Introduction: upper gastrointestinal bleeding constitutes any blood loss of sufficient volume to produce hematemesis, melena or both, whose origin is between the upper esophageal sphincter and the angle of Treitz. Objective: to determine the predictive factors of mortality in patients with upper gastrointestinal bleeding. Methods: an observational, analytical, prospective cohort study was carried out. A sample of 456 patients older than 15 years with the clinical diagnosis of upper gastrointestinal bleeding admitted to the general surgery guardhouse and intensive and emergent care unit of the Celia Sánchez Manduley Hospital, Manzanillo, between January 2020 and December, was selected. 2021. A cohort of patients discharged alive (n = 415) and a cohort of deceased patients (n = 41) were identified. A bivariate analysis was performed and subsequently a multivariate analysis. Results: the most adjusted model of the predictive factors of mortality was made up of the following variables: age over 60 years, hypovolemic shock, heart failure, liver failure and recurrent bleeding. Conclusions: an adjusted model was obtained with the predictive factors of mortality in patients with upper gastrointestinal bleeding. Therefore, we can discharge a patient with low risk of mortality early, while we can consider the admission of a high-risk patient to the intensive care unit.


RESUMO Introdução: o sangramento gastrointestinal superior constitui qualquer perda de sangue de volume suficiente para produzir hematêmese, melena ou ambas, cuja origem se encontra entre o esfíncter esofágico superior e o ângulo de Treitz. Objetivo: determinar os fatores preditivos de mortalidade em pacientes com hemorragia digestiva alta. Métodos: foi realizado um estudo observacional, analítico e de coorte prospectivo. Foi selecionada uma amostra de 456 pacientes maiores de 15 anos com diagnóstico clínico de hemorragia digestiva alta internados na enfermaria de cirurgia geral e unidade de terapia intensiva e emergente do Hospital Celia Sánchez Manduley, Manzanillo, entre janeiro de 2020 e dezembro. coorte de pacientes que receberam alta com vida (n = 415) e uma coorte de pacientes falecidos (n = 41). Foi realizada uma análise bivariada e posteriormente uma análise multivariada. Resultados: o modelo mais ajustado dos fatores preditivos de mortalidade foi composto pelas seguintes variáveis: idade acima de 60 anos, choque hipovolêmico, insuficiência cardíaca, insuficiência hepática e sangramento recorrente. Conclusões: foi obtido um modelo ajustado com os fatores preditivos de mortalidade em pacientes com hemorragia digestiva alta. Por tanto, podemos dar alta precoce a um paciente com baixo risco de mortalidade, en quanto podemos considerar a admissão de um paciente de alto risco à unidade de terapia intensiva.

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