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1.
J Enzyme Inhib Med Chem ; 39(1): 2388209, 2024 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-39140776

RESUMEN

Cisplatin remains the unchallenged standard therapy for NSCLC. However, it is not completely curative due to drug resistance and oxidative stress-induced toxicity. Drug resistance is linked to overexpression of matrix metalloproteinases (MMPs) and aberrant calcium signalling. We report synthesis of novel thiazole-triazole hybrids as MMP-9 inhibitors with T-type calcium channel blocking and antioxidant effects to sensitise NSCLC to cisplatin and ameliorate its toxicity. MTT and whole cell patch clamp assays revealed that 6d has a balanced profile of cytotoxicity (IC50 = 21 ± 1 nM, SI = 12.14) and T-type calcium channel blocking activity (⁓60% at 10 µM). It exhibited moderate ROS scavenging activity and nanomolar MMP-9 inhibition (IC50 = 90 ± 7 nM) surpassing NNGH with MMP-9 over -2 and MMP-10 over -13 selectivity. Docking and MDs simulated its receptor binding mode. Combination studies confirmed that 6d synergized with cisplatin (CI = 0.69 ± 0.05) lowering its IC50 by 6.89 folds. Overall, the study introduces potential lead adjuvants for NSCLC platinum-based therapy.


Asunto(s)
Antineoplásicos , Carcinoma de Pulmón de Células no Pequeñas , Proliferación Celular , Relación Dosis-Respuesta a Droga , Ensayos de Selección de Medicamentos Antitumorales , Neoplasias Pulmonares , Metaloproteinasa 9 de la Matriz , Tiazoles , Triazoles , Humanos , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Carcinoma de Pulmón de Células no Pequeñas/patología , Carcinoma de Pulmón de Células no Pequeñas/metabolismo , Neoplasias Pulmonares/tratamiento farmacológico , Neoplasias Pulmonares/patología , Neoplasias Pulmonares/metabolismo , Antineoplásicos/farmacología , Antineoplásicos/química , Antineoplásicos/síntesis química , Triazoles/química , Triazoles/farmacología , Triazoles/síntesis química , Relación Estructura-Actividad , Metaloproteinasa 9 de la Matriz/metabolismo , Tiazoles/química , Tiazoles/farmacología , Tiazoles/síntesis química , Estructura Molecular , Proliferación Celular/efectos de los fármacos , Inhibidores de la Metaloproteinasa de la Matriz/farmacología , Inhibidores de la Metaloproteinasa de la Matriz/química , Inhibidores de la Metaloproteinasa de la Matriz/síntesis química , Cisplatino/farmacología , Cisplatino/química , Canales de Calcio Tipo T/metabolismo
2.
Public Health ; 232: 93-99, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38759473

RESUMEN

OBJECTIVES: Mass violence incidents (MVIs) involving firearms, commonly referred to as "mass shootings" have become increasingly frequent in the United States. These shootings often result in immediate casualties and have far-reaching psychological impacts on survivors, witnesses, and the broader community. This study aimed to assess the prevalence and risk factors of depression within affected communities. STUDY DESIGN: Population-based cross-sectional study. METHODS: Data were collected from six communities affected by MVIs involving firearms that occurred between 2015 and 2020. Participants were randomly selected through address-based sampling, and depression was assessed using Diagnostic and Statistical Manual of Mental Disorders (Fifth Edition) diagnostic-level major depressive episode (MDE). RESULTS: Overall, the MDE prevalence was 17·2% since the MVI, 15·4% in the past year, and 8·2% in the past month. Significant risk factors for MDE since MVIs include high exposure to the incident (adjusted relative risk [aRR] = 1·32, 95% confidence interval [CI]: 19-1·60), being aged 18-29 years (aRR = 2·52, 95% CI: 1·61-3·95), being a woman (aRR = 1·58, 95% CI: 1·27-1·96), having low social support (aRR = 1·80, 95% CI: 1·46-2·22), and experiencing past sexual or physical trauma (aRR = 2·20, 1·52-3·19). CONCLUSION: Our study reveals a high burden of depression within communities affected by MVIs involving firearm use. Persons with high exposure to the MVIs and certain demographic groups had greater risks for MDE. These findings highlight the long-term mental health burden in communities affected by MVIs and underscore the necessity of providing mental health services in its aftermath.


Asunto(s)
Incidentes con Víctimas en Masa , Humanos , Adulto , Femenino , Masculino , Factores de Riesgo , Prevalencia , Estudios Transversales , Adolescente , Estados Unidos/epidemiología , Adulto Joven , Persona de Mediana Edad , Incidentes con Víctimas en Masa/estadística & datos numéricos , Incidentes con Víctimas en Masa/psicología , Depresión/epidemiología , Armas de Fuego/estadística & datos numéricos , Anciano , Trastorno Depresivo Mayor/epidemiología , Encuestas y Cuestionarios , Eventos de Tiroteos Masivos
3.
Inorg Chem ; 62(38): 15550-15564, 2023 Sep 25.
Artículo en Inglés | MEDLINE | ID: mdl-37698585

RESUMEN

A novel cobalt hydrogen-bonded organic framework (Co-HOF, C24H14CoN4O8) was synthesized from a mixed linker, that is, 2,5-pyridinedicarboxylic acid (PDC) and 2,2'-bipyridyl (BPY) linkers and cobalt ion through a simple, one-pot, low-cost, and scalable solvothermal method. The Co-HOF was fully characterized using several analytical and spectroscopic techniques including single-crystal X-ray diffraction, diffuse reflectance spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy, energy-dispersive X-ray, and X-ray photoelectron spectroscopy. The Co-HOF exhibits high thermal and chemical stabilities compared to previously reported HOF materials. Moreover, Co-HOF shows excellent photocatalytic activity under visible light irradiation due to its narrow band gap of 2.05 eV. The cycloaddition reaction of CO2 to variable epoxides was investigated to evaluate the photocatalytic performance of Co-HOF under visible light radiation and was found to produce the corresponding cyclic carbonates in yields up to 99.9%.

4.
Diabetes Metab Res Rev ; 37(8): e3444, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-33769660

RESUMEN

Lifestyle interventions are pivotal for successful management of type 2 diabetes (T2D), however, the proportion of people with T2D adhering to physical activity advice has not been thoroughly studied. The purpose of this systematic review was to summarise the evidence on adherence to exercise or physical activity components in lifestyle interventions in those with T2D. We searched MEDLINE EMBASE, Cochrane Central Register of Controlled Trials, Cochrane Database of Systematic Reviews and Scopus on 12 November 2019. Eligible studies enrolled adults with T2D and reported the proportion of adherence to lifestyle interventions as a primary or secondary outcome. We included 11 studies (nine randomised controlled trials (RCTs) enrolling 1717 patients and two nonrandomised studies enrolling 62 patients). Only one of the studies had low risk of bias. The proportion of participants adhering to physical activity varied from 32% to 100% with a median of 58%. Adherence was higher in interventions using supervised training and lowest in interventions using remote coaching and the adherence rate in observational studies was higher compared to RCTs (92% vs. 55%; p < 0.01). Study duration, risk of bias, or participants' sex, were not associated with adherence to physical activity. The proportion of those with T2D adhering to physical activity interventions for T2D varies widely and most of the included studies had a high risk of bias. These findings have important implications for planning and power analysis of future trials and when counselling patients about lifestyle interventions including physical activity or exercise components.


Asunto(s)
Diabetes Mellitus Tipo 2 , Ejercicio Físico , Adulto , Sesgo , Diabetes Mellitus Tipo 2/terapia , Humanos , Estilo de Vida
5.
Antimicrob Agents Chemother ; 64(12)2020 11 17.
Artículo en Inglés | MEDLINE | ID: mdl-32988829

RESUMEN

Acyclovir is an antiviral currently used for the prevention and treatment of herpes simplex virus (HSV) and varicella-zoster virus (VZV) infections. This study aimed to characterize the pharmacokinetics (PK) of acyclovir and its oral prodrug valacyclovir to optimize dosing in children. Children receiving acyclovir or valacyclovir were included in this study. PK were described using nonlinear mixed-effect modeling. Dosing simulations were used to obtain trough concentrations above a 50% inhibitory concentration for HSV or VZV (0.56 mg/liter and 1.125 mg/liter, respectively) and maximal peak concentrations below 25 mg/liter. A total of 79 children (212 concentration-time observations) were included: 50 were taking intravenous (i.v.) acyclovir, 22 were taking oral acyclovir, and 7 were taking both i.v. and oral acyclovir, 57 for preventive and 22 for curative purposes. A one-compartment model with first-order elimination best described the data. An allometric model was used to describe body weight effect, and the estimated glomerular filtration rate (eGFR) was significantly associated with acyclovir elimination. To obtain target maximal and trough concentrations, the more suitable initial acyclovir i.v. dose was 10 mg/kg of body weight/6 h for children with normal renal function (eGFR ≤ 250 ml/min/1.73 m2) and 15 to 20 mg/kg/6 h for children with augmented renal clearance (ARC) (eGFR > 250 ml/min/1.73 m2). The 20-mg/kg/8 h dose for oral acyclovir and valacyclovir produced effective concentrations in more than 75% of children; however, a 15-mg/kg/6 h dose, if possible, is preferred. These doses should be prospectively confirmed, and therapeutic drug monitoring could be used to refine them individually. (This study has been registered at ClinicalTrials.gov under identifier NCT02539407.).


Asunto(s)
Aciclovir , Valina , Administración Oral , Antivirales , Niño , Humanos , Valaciclovir
6.
Am Heart J ; 224: 57-64, 2020 06.
Artículo en Inglés | MEDLINE | ID: mdl-32305724

RESUMEN

BACKGROUND: Critical care risk scores can stratify mortality risk among cardiac intensive care unit (CICU) patients, yet risk score performance across common CICU admission diagnoses remains uncertain. METHODS: We evaluated performance of the Acute Physiology and Chronic Health Evaluation (APACHE)-III, APACHE-IV, Sequential Organ Failure Assessment (SOFA) and Oxford Acute Severity of Illness Score (OASIS) scores at the time of CICU admission in common CICU admission diagnoses. Using a database of 9,898 unique CICU patients admitted between 2007 and 2015, we compared the discrimination (c-statistic) and calibration (Hosmer-Lemeshow statistic) of each risk score in patients with selected admission diagnoses. RESULTS: Overall hospital mortality was 9.2%. The 3182 (32%) patients with a critical care diagnosis such as cardiac arrest, shock, respiratory failure, or sepsis accounted for >85% of all hospital deaths. Mortality discrimination by each risk score was comparable in each admission diagnosis (c-statistic 95% CI values were generally overlapping for all scores), although calibration was variable and best with APACHE-III. The c-statistic values for each score were 0.85-0.86 among patients with acute coronary syndromes, and 0.76-0.79 among patients with heart failure. Discrimination for each risk score was lower in patients with critical care diagnoses (c-statistic range 0.68-0.78) compared to non-critical cardiac diagnoses (c-statistic range 0.76-0.86). CONCLUSIONS: The tested risk scores demonstrated inconsistent performance for mortality risk stratification across admission diagnoses in this CICU population, emphasizing the need to develop improved tools for mortality risk prediction among critically-ill CICU patients.


Asunto(s)
Unidades de Cuidados Coronarios/estadística & datos numéricos , Cuidados Críticos/métodos , Enfermedad Crítica/terapia , Admisión del Paciente/estadística & datos numéricos , Medición de Riesgo/métodos , Anciano , Enfermedad Crítica/mortalidad , Femenino , Mortalidad Hospitalaria/tendencias , Humanos , Masculino , Pronóstico , Estudios Retrospectivos , Estados Unidos/epidemiología
7.
Int Ophthalmol ; 39(7): 1483-1490, 2019 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-29978342

RESUMEN

PURPOSE: To study the use of autologous platelet lysate prepared in a standardized method for the healing of persistent corneal epithelial defects (PED). STUDY DESIGN: Clinical and experimental investigation. METHODS: In this prospective pilot study (ClinicalTrials.gov identifier NCT02979912), ten patients with a PED duration of a minimum 14 days were included. Autologous platelet lysate was prepared in a standardized methodology. Repeated freeze-thaw cycles were used to lyse the platelets. Patients were advised to apply the eye drops four times a day and were evaluated at baseline and on days 7, 14, 21, 28. RESULTS: No adverse events were reported due to the use of undiluted autologous platelet lysate. A total of 70% of patients had complete re-epithelialization within 28 days. Of these, 40% healed within 14 days (effective group) and 30% within 28 days (partially effective group). CONCLUSIONS: Undiluted autologous platelet lysate, prepared according to a standardized methodology, is a safe and effective adjunct therapy for the treatment of PED.


Asunto(s)
Plaquetas , Enfermedades de la Córnea/terapia , Epitelio Corneal/patología , Repitelización/fisiología , Adulto , Anciano , Enfermedades de la Córnea/diagnóstico , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Soluciones Oftálmicas/administración & dosificación , Proyectos Piloto , Estudios Prospectivos , Resultado del Tratamiento , Adulto Joven
8.
Colorectal Dis ; 18(12): 1179-1185, 2016 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-27166739

RESUMEN

AIM: The study evaluated the outcome of severe acute antipsychotic (neuroleptic) drug related colitis requiring emergency surgery. METHOD: From 2009 to 2014, 20 patients underwent emergency surgery for acute and severe neuroleptic-related ischaemic colitis. Neuroleptic-induced colitis was defined as another cause besides inflammatory, infectious or ischaemic colitis with a relationship to treatment by antipsychotic drugs. RESULTS: The main drugs involved were cyamemazine (n = 9, 45%), loxapine (n = 5, 25%), haloperidol (n = 4, 20%) and alimemazine (n = 4, 20%). Most (n = 14, 70%) patients presented with haemodynamic instability requiring massive resuscitation and vasopressive drugs. CT signs of digestive impairment were found in 13 (65%) patients having emergency surgery. The lesions were pancolonic in 40%; transparietal necrosis was found in 45% and 15% had colonic perforation. Twelve (60%) patients had total or subtotal colectomy and eight (40%) a segmental colectomy with colostomy or ileostomy in all cases. The postoperative mortality was 15% and morbidity was 70%, necessitating surgical reintervention in two (10%) patients. Of the 17 surviving patients, 11 (64.7%) had restoration of intestinal continuity after a median delay of 103 days, with a postoperative morbidity rate of 36.3%. In the intent-to-treat population, the permanent stoma rate was 30%. CONCLUSION: The morbidity and mortality of surgery for neuroleptic-drug-induced colitis is higher than for colitis due to other causes. A better knowledge of this condition should lead to early diagnosis.


Asunto(s)
Antipsicóticos/efectos adversos , Colitis Isquémica/cirugía , Colostomía/estadística & datos numéricos , Tratamiento de Urgencia/métodos , Ileostomía/estadística & datos numéricos , Adulto , Anciano , Anciano de 80 o más Años , Colectomía/métodos , Colectomía/estadística & datos numéricos , Colitis Isquémica/inducido químicamente , Colitis Isquémica/mortalidad , Colostomía/métodos , Femenino , Humanos , Ileostomía/métodos , Análisis de Intención de Tratar , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Estudios Prospectivos , Resultado del Tratamiento
9.
Epidemiol Infect ; 142(1): 208-10, 2014 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-23561305

RESUMEN

Group B streptococcus (GBS) is a leading cause of neonatal sepsis and meningitis. We determined the distribution of serotypes and surface protein encoding genes of GBS strains from pregnant and non-pregnant women in Egypt. Vaginal swabs from 364 women were screened by culture and 100 (27.4%) yielded GBS. Serotype V was the most predominant (33%), followed by serotypes II (17%), III (15%), Ia (14%), VI (12%), Ib (8%) and IV (1%). The most common surface protein genes were epsilon (27%), alp3 (26%), bca (18%), rib (16%) and alp2 (10%). Two isolates were negative for surface protein genes. The distribution of serotypes and surface proteins was similar to reports from other parts of the world but the relatively high frequency of serotype VI was a notable feature of the strains from women in Egypt.


Asunto(s)
Proteínas Bacterianas/genética , Proteínas de la Membrana/genética , Infecciones Estreptocócicas/microbiología , Streptococcus agalactiae/clasificación , Distribución de Chi-Cuadrado , Estudios Transversales , Egipto/epidemiología , Femenino , Humanos , Embarazo , Serotipificación , Infecciones Estreptocócicas/epidemiología , Streptococcus agalactiae/genética , Streptococcus agalactiae/aislamiento & purificación , Vagina/microbiología
10.
Retina ; 34(10): 2147-50, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25158941

RESUMEN

PURPOSE: To determine the prevalence of thrombophilic factors in patients with retinitis pigmentosa (RP). METHODS: Fifty consecutive patients with RP and 50 controls matched by age and gender were tested for the presence of the following mutations: factor II (GA20210), factor V Leiden (GA1691), methylenetetrahydrofolate reductase (CT677), factor XIIIa (Val→Leu), ß-fibrinogen (GA455), tumor necrosis factor receptor (TNFRII) (M196R), plasminogen activator inhibitor-1 (PAI-1) (4 G/5 G), and plasminogen activator inhibitor-1 (PAI-1) (GA844). RESULTS: The following heterozygous mutations were found in patients/controls: factor V Leiden (12/14), factor XIIIa (20/30), methylenetetrahydrofolate reductase 677 TT (48/52), ß-fibrinogen GA455 (36/36), TNFRII (M196R) (40/42), PAI-1 4 G/5 G (40/48), and PAI-1 GA844 (50/52). The difference between patients with RP and the control group was not statistically significant for the prevalence of any of the studied factors (P > 0.05). CONCLUSION: In this study, thrombophilic mutations were not increased in patients with RP. Thrombophilic mutations do not seem to be risk factors for RP. Routine investigation of hereditary thrombophilia in these patients is not justified.


Asunto(s)
Mutación , Retinitis Pigmentosa/genética , Trombofilia/genética , Adulto , Análisis Mutacional de ADN , Factor V/genética , Factor XIIIa/genética , Femenino , Fibrinógeno/genética , Predisposición Genética a la Enfermedad , Genotipo , Humanos , Masculino , Metilenotetrahidrofolato Reductasa (NADPH2)/genética , Inhibidor 1 de Activador Plasminogénico/genética , Prevalencia , Receptores Tipo II del Factor de Necrosis Tumoral/genética , Factores de Riesgo , Adulto Joven
11.
Sci Rep ; 14(1): 22902, 2024 Oct 02.
Artículo en Inglés | MEDLINE | ID: mdl-39358435

RESUMEN

Yellow ochre is the basic material used in the manufacture of yellow oxide (a commercial product). Yellow ochre samples were taken from three different formations in southwestern Sinai: Abu Hamata, Um Bogma, and Abu Zarab. Yellow ochre occasionally exists in Abu Hamata Formation particularly in El Ferah area, associated with Fe-Mn ore in Wadi El Sahu (Um Bogma Formation) and in Himayer area (Abu Zarab Formation). The XRD analysis of the raw material reveals that they are mainly composed of goethite, which is associated with quartz and kaolinite in El Ferah area, hematite, kaolinite and quartz in Himayer area, and kaolinite, gypsum and quartz in Wadi El Sahu. The commercial product is mainly composed of goethite, quartz, and calcite. The heavy mineral investigation shows that some yellow ochre samples contain zircon and rare earth sulfate which may be responsible for the radioactivity of ochre due to their thorium and uranium content. The average values of specific radio-activities of most radionuclides in the samples of Himayer area I and II, and El Sahu I are higher than the respective world averages, while their activities are lower in El Ferah and El Sahu II. Th/U and Ra/U ratios exhibit vigorous changes in physico-chemical conditions during uranium leaching and deposition. Most of the radiological parameters in the ferruginous sediment and commercial product samples from El Ferah, El Sahu II, and Himayer II are lower than the recommended international values but higher than those from Himayer I and El Sahu I samples. The plotted hierarchical cluster analysis (HCA) exhibits that the main contributors for the hazards of these sediments and their commercial product are 238U, 232Th and 226Ra in Himayer I &II, commercial products, and El Ferah area, 232Th and 226Ra in El Sahu II , 232Th, 40K and 226Ra in El Sahu I.

12.
PLoS One ; 19(8): e0308454, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39178273

RESUMEN

This study aimed to investigate the differences in Religiosity (R), Mental Immunity (MI), and Psychological Well-Being (PWB) in patients with diabetes due to gender and age group variables, and to detect the best predictors of PWB in diabetic patients within the Bayesian framework. The study was conducted from May 2022 to February 2023 on a random sample of 186 Saudis diagnosed with diabetes. After obtaining participants' consent, they completed three R, MI, and PWB scales. Bayesian Independent Samples t-test was performed to identify differences, and Bayesian linear regression analysis was used to reveal the best prediction model of PWB. The results of the Bayesian independent samples t-test indicated strong evidence supporting the alternative hypothesis H1, suggesting differences between male and female diabetic patients in R, MI, and PWB, with Bayesian factor values exceeding 10 (8.338×10+23, 1.762×10+25, and 1.866×10+24), and Cohen's δ of (-1.866, -1.934, -1.884). These results indicated that females with diabetes have higher means of R, MI, and PWB compared to males. However, the results also suggested evidence for the null hypothesis H0 of no differences in R, MI, and PWB among diabetic patients due to age group, with Bayesian factor values (0.176, 0.181, and 0.187) less than 1.00 and small Cohen's δ of (-0.034, -0.050, -0.063). Bayesian linear regression analysis detected strong evidence that the model including MI is the best predictive model (BF10 for mental immunity is 1.00 and for the other two models are 0.07 and 4.249×10-16) for the PWB of diabetic patients, however, there is no evidence that the model including R or the interaction between R and MI is the best predictor of PWB for diabetic patients. These findings highlight the need for direct psychological care services for male diabetic patients and the urgent need to enhance IM in diabetic patients to improve their PWB. Furthermore, results recommended that healthcare providers in Saudi Arabia integrate MI interventions into diabetes care programs.


Asunto(s)
Teorema de Bayes , Diabetes Mellitus , Humanos , Masculino , Femenino , Persona de Mediana Edad , Arabia Saudita/epidemiología , Adulto , Diabetes Mellitus/inmunología , Diabetes Mellitus/psicología , Diabetes Mellitus/epidemiología , Factores Sexuales , Factores de Edad , Anciano , Salud Mental , Adulto Joven , Religión , Bienestar Psicológico
13.
Pathol Biol (Paris) ; 61(5): 223-5, 2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23415274

RESUMEN

Propionibacteria are organisms of low pathogenicity and only a minority of clinical Propionibacterium isolates is clinically significant. Herein, we report a rare case of Propionibacterium avidum abdominal wall and intra-peritoneal abscess that developed in 46-year-old woman after abdominal parietoplasty.


Asunto(s)
Absceso Abdominal/microbiología , Absceso/microbiología , Infecciones por Bacterias Grampositivas , Hernia Abdominal/cirugía , Complicaciones Posoperatorias/microbiología , Propionibacterium/aislamiento & purificación , Pared Abdominal/microbiología , Femenino , Humanos , Persona de Mediana Edad , Cavidad Peritoneal/microbiología
14.
East Mediterr Health J ; 19(2): 114-8, 2013 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-23516819

RESUMEN

Analyses of patient delays in seeking treatment for tuberculosis (TB) provide useful evidence for national TB control programmes. The objectives of this study in Gezira State, Sudan were to estimate the extent of, and factors associated with, pulmonary TB patient delay in accessing care. A cross-sectional phase was conducted to determine the length of delay, followed by a nested case-control phase comparing patients delaying above or below the median time. The mean patient delay was 27.2 days, median 4 days (range 0-365 days). There were no significant differences between case and control groups in terms of age, sex, marital status, educational level or smoking status. However, patients living in urban areas, with low income status and who were housewives or unemployed were more likely to delay. Also patients with a history of contact with a TB patient, those who suspected TB and those with a history of chronic obstructive pulmonary disease were more likely to delay.


Asunto(s)
Antituberculosos/uso terapéutico , Encuestas de Atención de la Salud/estadística & datos numéricos , Accesibilidad a los Servicios de Salud/estadística & datos numéricos , Aceptación de la Atención de Salud/estadística & datos numéricos , Tuberculosis Pulmonar/tratamiento farmacológico , Adolescente , Adulto , Estudios de Casos y Controles , Estudios Transversales , Empleo/estadística & datos numéricos , Femenino , Humanos , Masculino , Estado Civil/estadística & datos numéricos , Factores de Riesgo , Población Rural/estadística & datos numéricos , Factores Socioeconómicos , Sudán , Población Urbana/estadística & datos numéricos , Adulto Joven
15.
Zootaxa ; 5380(6): 595-598, 2023 Dec 05.
Artículo en Inglés | MEDLINE | ID: mdl-38221287

RESUMEN

The megamouth shark Megachasma pelagios (Lamniformes: Megachasmidae) was described in 1976 from a specimen caught off Hawaii (Taylor et al. 1983) and is the only extant member of its family and genus (Diez et al. 2022). From 1976 to 2010 M. pelagios was considered rare, with only 50 individuals recorded globally during that time (Nakaya 2010). In recent years it is apparent that it is more common and widespread than previously thought, with 273 confirmed records to date across 16 countries in the Atlantic, Indian and Pacific Oceans (Yu et al. 2021; Diez et al. 2022; Skelton et al. 2023). This species is classified as Least Concern on the IUCN Red List of Threatened Species, as it is globally distributed and does not appear to be heavily impacted by fisheries (Kyne et al. 2019).


Asunto(s)
Tiburones , Humanos , Animales , Tanzanía , Especies en Peligro de Extinción , Explotaciones Pesqueras
16.
Dalton Trans ; 52(24): 8473-8487, 2023 Jun 20.
Artículo en Inglés | MEDLINE | ID: mdl-37282596

RESUMEN

Two new isostructural carboxylate-bridged lanthanide ribbons having the chemical formula [Ln2(4-ABA)6]n [4-ABA = 4-aminobenzoate, Ln: holmium (Ho) and erbium (Er)] were synthesized by a solvothermal method and fully characterized using multiple analytical, spectroscopic, and computational techniques. Single-crystal X-ray diffraction analysis reveals that both lanthanide coordination polymers (Ln-CPs) exhibit linear ribbon-like structures built up by dinuclear Ln2(4-ABA)6 units and bridged by carboxylate groups. Ln-CPs showed remarkably high thermal and chemical stabilities. Ho-CP and Er-CP exhibited similar band gaps of 3.21 eV and 3.22 eV, respectively, showing their photocatalytic ability under UV light. The photocatalytic activities of Ln-CPs were examined in the CO2 cycloaddition of epoxides to cyclic carbonates under solvent-free conditions, and full conversion (yields up to 99.9%) to the product was achieved. Ln-CP photocatalysts retained the same product yields over five consecutive cycles. Additionally, the experimental magnetic studies indicated that both Ln-CP crystals are antiferromagnetic at low T, which is confirmed by density functional theory calculations.

17.
Skin Res Technol ; 18(1): 36-44, 2012 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-21338407

RESUMEN

INTRODUCTION: Papulo-squamous skin diseases are variable but are very close in their clinical features. They present with the same lesions, erythematous scaly lesions. Clinical evaluation of skin lesions is based on common sense and experience of the dermatologist to differentiate features of each disease. AIM: To evaluate a computer-based image analysis system as a helping tool for classification of commonly encountered diseases. MATERIALS AND METHODS: The study included 50 selected images from each of psoriasis, lichen planus, atopic dermatitis, seborrheic dermatitis, pityrasis rosea, and pitryasis rubra pilaris with a total of 300 images. The study comprised three main processes peformed on the 300 included images: segmentation, feature extraction followed by classification. RESULTS: Rough sets recorded the highest percentage of accuracy and sensitivity of segmentation for the six groups of diseases compared with the other three used techniques (topological derivative, K-means clustering, and watershed). Rule-based classifier using the concept of rough sets recorded the best percentage of classification (96.7%) for the six groups of diseases compared with the other six techniques of classification used: K-means clustering, fuzzy c-means clustering, classification and regression tree, rule-based classifier with discretization, and K-nearest neighbor technique. CONCLUSION: Rough sets approach proves its superiority for both the segmentation and the classification processes of papulo-squamous skin diseases compared with the other used segmentation and classification techniques.


Asunto(s)
Dermoscopía/métodos , Interpretación de Imagen Asistida por Computador/métodos , Fotograbar/métodos , Enfermedades Cutáneas Papuloescamosas/clasificación , Enfermedades Cutáneas Papuloescamosas/patología , Humanos , Reconocimiento de Normas Patrones Automatizadas , Reproducibilidad de los Resultados , Sensibilidad y Especificidad
18.
Clin Otolaryngol ; 37(4): 276-82, 2012 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-22776038

RESUMEN

OBJECTIVES: Review and evaluate the prevalence and severity of individual symptoms in patients with chronic rhinosinusitis (CRS) with or without nasal polyposis. DESIGN AND SETTING: Retrospective analysis of data from the National Comparative Audit of Surgery for Nasal Polyposis and CRS, carried out across 87 hospitals in England and Wales between 2000 and 2001. PARTICIPANTS: A total of 2573 patients with CRS (1784 had CRS with nasal polyposis, 789 without nasal polyposis) who had undergone sinus surgery. MAIN OUTCOME MEASURES: Severity of clinical symptoms scores was graded on the Sino-Nasal Outcome Test 22 questionnaire. Prevalence of these symptoms and mean symptom scores were calculated for each group of patients at baseline and 3 months after surgery. RESULTS: In both groups, nasal blockage/congestion had the highest mean symptom score, followed by altered smell/taste and then the need to blow nose. These three symptoms were the most prevalent in the group with nasal polyposis. In the group without nasal polyposis, nasal blockage was also the most prevalent individual symptom (93.5%) followed by altered smell/taste (75.7%). The third most prevalent symptom was waking up tired (69.9%). The average test score preoperatively was 41.5 (group with nasal polyposis) and 44.4 (group without nasal polyposis). This decreased to 18.3 and 14.1, respectively, 3 months after surgery (P < 0.001). CONCLUSION: The leading three symptoms were nasal blockage/congestion, altered taste/smell and the need to blow the nose in terms of severity and prevalence. The total Sino-Nasal Outcome Test 22 and all individual symptom scores improved significantly after surgery.


Asunto(s)
Rinitis/epidemiología , Rinitis/cirugía , Sinusitis/epidemiología , Sinusitis/cirugía , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Enfermedad Crónica , Inglaterra/epidemiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pólipos Nasales/epidemiología , Pólipos Nasales/cirugía , Trastornos del Olfato/epidemiología , Prevalencia , Estudios Retrospectivos , Factores de Riesgo , Índice de Severidad de la Enfermedad , Encuestas y Cuestionarios , Gales/epidemiología
19.
Eur Rev Med Pharmacol Sci ; 26(6): 1803-1808, 2022 03.
Artículo en Inglés | MEDLINE | ID: mdl-35363326

RESUMEN

OBJECTIVE: According to WHO, global coverage of immunization was 86% in 2019, which dropped to 83% in 2020. The objective of this study is to assess parental knowledge and identify their perception towards the importance of child immunization. This study has also tried to determine the possible influencing factors for parental decision-making towards child immunization. PATIENTS AND METHODS: A community-based cross-sectional study was conducted in 2020 in Sudair region of Saudi Arabia. The study was done among parents residing in Sudair region, where the sample was randomly selected based on the household. The sample of 436 was taken using the population proportion formula. Data were collected and analyzed using SPSS version 18 (SPSS Inc., Chicago, IL, USA). Both the descriptive and inferential statistics were used to draw the results. RESULTS: In this study the three-fourth (77.1%) of respondents were female and the remaining were male (23%). The majority of the respondent's knowledge was reported to have some form of influence on their idea of immunization followed by Ministry of Health, family members, medical staff, social media and others. A significant association was seen between age, marital status, occupational status and parents' knowledge on the importance of immunization (thinking if all child immunization was important). Association was also seen between parents' perception that immunization causes serious side effects and the age of the respondents. CONCLUSIONS: The specific programs and bcc materials are needed to enhance the knowledge and perception of individuals regarding the need for complete immunization and also regarding the fact of vaccine-preventable diseases.


Asunto(s)
Conocimientos, Actitudes y Práctica en Salud , Inmunización , Niño , Estudios Transversales , Femenino , Humanos , Masculino , Padres , Percepción , Arabia Saudita
20.
J Visc Surg ; 159(3): 212-221, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-35599158

RESUMEN

Twenty-seven experts under the aegis of the French Association of Surgery (AFC) offer this reference system with formalized recommendations concerning the performance of right colectomy by robotic approach (RRC). For RRC, experts suggest patient installation in the so-called "classic" or "suprapubic" setup. For patients undergoing right colectomy for a benign pathology or cancer, RRC provides no significant benefit in terms of intra-operative blood loss, intra-operative complications or conversion rate to laparotomy compared to laparoscopy. At the same time, RRC is associated with significantly longer operating times. Data from the literature are insufficient to define whether the robot facilitates the performance of an intra-abdominal anastomosis, but the robotic approach is more frequently associated with an intra-abdominal anastomosis than the laparoscopic approach. Experts also suggest that RRC offers a benefit in terms of post-operative morbidity compared to right colectomy by laparotomy. No benefit is retained in terms of mortality, duration of hospital stay, histological results, overall survival or disease-free survival in RRC performed for cancer. In addition, RRC should not be performed based on the cost/benefit ratio, since RRC is associated with significantly higher costs than laparoscopy and laparotomy. Future research in the field of RRC should consider the evaluation of patient-targeted parameters such as pain or quality of life and the technical advantages of the robot for complex procedural steps, as well as surgical and oncological results.


Asunto(s)
Neoplasias del Colon , Laparoscopía , Procedimientos Quirúrgicos Robotizados , Colectomía/métodos , Neoplasias del Colon/cirugía , Humanos , Laparoscopía/métodos , Tiempo de Internación , Tempo Operativo , Calidad de Vida , Estudios Retrospectivos , Procedimientos Quirúrgicos Robotizados/métodos , Resultado del Tratamiento
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