165 research outputs found

    Combination of Immunotherapy and Radiotherapy-The Next Magic Step in the Management of Lung Cancer?

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    none4sinoneHendriks L.E.L.; Menis J.; De Ruysscher D.K.M.; Reck M.Hendriks, L. E. L.; Menis, J.; De Ruysscher, D. K. M.; Reck, M

    Growth hormone-releasing hormone resistance in pseudohypoparathyroidism type Ia: New evidence for imprinting of the Gsα gene

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    Heterozygous inactivating mutations in the Gs\u3b1 gene cause Albright's hereditary osteodystrophy. Consistent with the observation that only maternally inherited mutations lead to resistance to hormone action [pseudohypoparathyroidism type Ia (PHP Ia)], recent studies provided evidence for a predominant maternal origin of Gs\u3b1 transcripts in endocrine organs, such as thyroid, gonad, and pituitary. The aim of this study was to investigate the presence of pituitary resistance to hypothalamic hormones acting via Gs\u3b1-coupled receptors in patients with PHP Ia. Six of nine patients showed an impaired GH responsiveness to GHRH plus arginine, consistent with a complete GH deficiency (GH peak from 2.6-8.6 \u3bcg/liter, normal > 16.5), and partial (GH peak 13.9 and 13.6 \u3bcg/liter) and normal responses were found in two and one patient, respectively. Accordingly, IGF-I levels were below and in the low-normal range in seven and two patients. All patients had a normal cortisol response to 1 \u3bcg ACTH test, suggesting a normal corticotroph function that was confirmed by a normal ACTH and cortisol response to CRH test in three patients. In conclusion, we report that in addition to PTH and TSH resistance, patients with PHP Ia display variable degrees of GHRH resistance, consistent with Gs\u3b1 imprinting in human pituitary

    Análisis del periodo de lluvias a nivel nacional 2021 – 2022. Informe Técnico

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    El presente informe es una fuente referencial con información y datos sobre la base de los sistemas de observación del SENAMHI-Perú, que describen las condiciones climáticas predominantes durante el periodo de lluvias 2021 – 2022, a través de los principales productos operativos de vigilancia climática. Asimismo, el informe describe las condiciones océano atmosférico que modularon el periodo lluvioso, y detalla los eventos extremos de lluvia que ocasionaron deslizamientos, inundaciones y/o desbordes a nivel nacional. Durante el periodo de lluvias 2021-2022, concurrieron escenarios contrastantes de déficits y superávit de lluvias en diferentes regiones del país; el sector oriental de los Andes se caracterizó por presentar lluvias frecuentes y superávits con anomalías de +15% a +100%; en contraste, el sector occidental presentó veranillos entre fines de diciembre y enero con deficiencias entre -100% a -60%, para luego presentar lluvias un tanto más frecuentes entre febrero hasta los primeros días de abril. Se resalta las acentuadas deficiencias en Tumbes, Piura, Lambayeque y La Libertad respecto a los demás departamentos a nivel nacional. Durante el verano, periodo de lluvias máximas, se reportaron derrumbes, deslizamientos de tierra e inundaciones que desafortunadamente causaron pérdidas de vidas humanas y graves daños a la infraestructura, medios de vida de la población y daños irreparables a Centros Arqueológicos, p. ej., el derrumbe del Complejo Arqueológico de Kuélap en la Región Amazonas

    Ionization Probabilities through ultra-intense Fields in the extreme Limit

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    We continue our investigation concerning the question of whether atomic bound states begin to stabilize in the ultra-intense field limit. The pulses considered are essentially arbitrary, but we distinguish between three situations. First the total classical momentum transfer is non-vanishing, second not both the total classical momentum transfer and the total classical displacement are vanishing together with the requirement that the potential has a finite number of bound states and third both the total classical momentum transfer and the total classical displacement are vanishing. For the first two cases we rigorously prove, that the ionization probability tends to one when the amplitude of the pulse tends to infinity and the pulse shape remains fixed. In the third case the limit is strictly smaller than one. This case is also related to the high frequency limit considered by Gavrila et al.Comment: 16 pages LateX, 2 figure

    Use of RAAS Inhibitors and Risk of Clinical Deterioration in COVID-19: Results From an Italian Cohort of 133 Hypertensives.

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    This is a pre-copyedited, author-produced version of an article accepted for publication in American Journal of Hypertension, following peer review. The version of record: Carla Felice, Chiara Nardin, Gian Luca Di Tanna, Ugo Grossi, Enrico Bernardi, Luca Scaldaferri, Micaela Romagnoli, Luca Tonon, Paola Cavasin, Simone Novello, Riccardo Scarpa, Antonio Farnia, Ernesto De Menis, Roberto Rigoli, Francesco Cinetto, Paolo Pauletto, Carlo Agostini, Marcello Rattazzi, Use of RAAS Inhibitors and Risk of Clinical Deterioration in COVID-19: Results From an Italian Cohort of 133 Hypertensives, American Journal of Hypertension, hpaa096, doi: 10.1093/ajh/hpaa096 is available online at:  https://doi.org/10.1093/ajh/hpaa096BACKGROUND: The effect of chronic use of renin-angiotensin-aldosterone system (RAAS) inhibitors on the severity of COVID-19 infection is still unclear in patients with hypertension. We aimed to investigate the association between chronic use of angiotensin-converting enzyme inhibitors (ACEIs) or angiotensin II receptor blockers (ARBs) and COVID-19-related outcomes in hypertensive patients. METHODS: A single-center study was conducted on 133 consecutive hypertensive subjects presenting to the emergency department with acute respiratory symptoms and/or fever who were diagnosed with COVID-19 infection between 9 and 31 March 2020. RESULTS: All patients were grouped according to their chronic antihypertensive medications (ACEIs, N = 40; ARBs, N = 42; not on RAAS inhibitors, N = 51). There was no statistical difference between ACEIs and ARBs groups in terms of hospital admission rate, oxygen therapy, and need for noninvasive ventilation. Patients chronically treated with RAAS inhibitors showed a significantly lower rate of admission to semi-intensive/intensive care units, when compared with the non-RAAS population (odds ratio (OR) 0.25, confidence interval (CI) 95% 0.09-0.66, P = 0.006). Similarly, the risk of mortality was lower in the former group, although not reaching statistical significance (OR 0.56, CI 95% 0.17-1.83, P = 0.341). CONCLUSIONS: Our data suggest that chronic use of RAAS inhibitors does not negatively affect clinical course of COVID-19 in hypertensive patients. Further studies are needed to confirm this finding and determine whether RAAS inhibitors may have a protective effect on COVID-19-related morbidity and mortality

    Acromegaly is associated with increased cancer risk: A survey in Italy

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    It is debated if acromegalic patients have an increased risk to develop malignancies. The aim of the present study was to assess the standardized incidence ratios (SIRs) of different types of cancer in acromegaly on a large series of acromegalic patients managed in the somatostatin analogs era. It was evaluated the incidence of cancer in an Italian nationwide multicenter cohort study of 1512 acromegalic patients, 624 men and 888 women, mean age at diagnosis 45 \uc2\ub1 13 years, followed up for a mean of 10 years (12573 person-years) in respect to the general Italian population. Cancer was diagnosed in 124 patients, 72 women and 52 men. The SIRs for all cancers was significantly increased compared to the general Italian population (expected: 88, SIR 1.41; 95% CI, 1.18-1.68, P < 0.001). In the whole series, we found a significantly increased incidence of colorectal cancer (SIR 1.67; 95% CI, 1.07-2.58, P = 0.022), kidney cancer (SIR 2.87; 95% CI, 1.55-5.34, P < 0.001) and thyroid cancer (SIR 3.99; 95% CI, 2.32-6.87, P < 0.001). The exclusion of 11 cancers occurring before diagnosis of acromegaly (all in women) did not change remarkably the study outcome. In multivariate analysis, the factors significantly associated with an increased risk of malignancy were age and family history of cancer, with a non-significant trend for the estimated duration of acromegaly before diagnosis. In conclusion, we found evidence that acromegaly in Italy is associated with a moderate increase in cancer risk

    Epidemiology of surgery associated acute kidney injury (EPIS-AKI) : a prospective international observational multi-center clinical study

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    The incidence, patient features, risk factors and outcomes of surgery-associated postoperative acute kidney injury (PO-AKI) across different countries and health care systems is unclear. We conducted an international prospective, observational, multi-center study in 30 countries in patients undergoing major surgery (> 2-h duration and postoperative intensive care unit (ICU) or high dependency unit admission). The primary endpoint was the occurrence of PO-AKI within 72 h of surgery defined by the Kidney Disease: Improving Global Outcomes (KDIGO) criteria. Secondary endpoints included PO-AKI severity and duration, use of renal replacement therapy (RRT), mortality, and ICU and hospital length of stay. We studied 10,568 patients and 1945 (18.4%) developed PO-AKI (1236 (63.5%) KDIGO stage 1500 (25.7%) KDIGO stage 2209 (10.7%) KDIGO stage 3). In 33.8% PO-AKI was persistent, and 170/1945 (8.7%) of patients with PO-AKI received RRT in the ICU. Patients with PO-AKI had greater ICU (6.3% vs. 0.7%) and hospital (8.6% vs. 1.4%) mortality, and longer ICU (median 2 (Q1-Q3, 1-3) days vs. 3 (Q1-Q3, 1-6) days) and hospital length of stay (median 14 (Q1-Q3, 9-24) days vs. 10 (Q1-Q3, 7-17) days). Risk factors for PO-AKI included older age, comorbidities (hypertension, diabetes, chronic kidney disease), type, duration and urgency of surgery as well as intraoperative vasopressors, and aminoglycosides administration. In a comprehensive multinational study, approximately one in five patients develop PO-AKI after major surgery. Increasing severity of PO-AKI is associated with a progressive increase in adverse outcomes. Our findings indicate that PO-AKI represents a significant burden for health care worldwide
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