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2.
Clin Exp Obstet Gynecol ; 43(3): 467-9, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27328519

RESUMEN

PURPOSE OF INVESTIGATION: Hydatidiform mole (HM) is an abnormal pregnancy characterized by proliferation of cytotrophoblast and syncytiotrophoblast and vesicular swelling of placental villi. The fetus or embryo can be absent or abnormal. HMs can be complete or partial. CASE REPORT: A case of diginyc partial HM at 12 weeks of gestational age was referred to the present center of prenatal diagnosis. The patient showed ovarian hyperstimulation syndrome. At ultrasonography, increased fetal nuchal translucency (NT) with fetal anomaly was evident, without sonographic signs of placental mole. Pregnancy was terminated with legal abortion. RESULTS: Partial HM (PHM) was suspected by ultrasonographic fetal markers with ovarian hyperstimulation syndrome, but the diagnosis was performed only with fluorescent in situ hybridization. In particular fetal NT appeared increased also in diginyc mole. CONCLUSION: In order to improve the detection rate of PHM, routine histological examinations may be associated to fluorescent in situ hybridization in all cases of fetal anomalies.


Asunto(s)
Mola Hidatiforme/diagnóstico , Síndrome de Hiperestimulación Ovárica/diagnóstico , Neoplasias Uterinas/diagnóstico , Aborto Inducido , Adulto , Femenino , Edad Gestacional , Humanos , Mola Hidatiforme/complicaciones , Mola Hidatiforme/terapia , Hibridación Fluorescente in Situ , Medida de Translucencia Nucal , Síndrome de Hiperestimulación Ovárica/complicaciones , Síndrome de Hiperestimulación Ovárica/terapia , Embarazo , Ultrasonografía Prenatal , Neoplasias Uterinas/complicaciones , Neoplasias Uterinas/terapia
3.
Pediatr Diabetes ; 16(8): 606-12, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-25303644

RESUMEN

BACKGROUND: Insulin resistance is considered one of the major risk factors for the development of type 2 diabetes mellitus (T2DM). Thus, early identification, preferably by using simple and inexpensive diagnostic tools, is essential for preventing T2DM. Triglyceride (TG) to high-density lipoprotein cholesterol (HDL-C) ratio (TG/HDL-C) has been proposed as an inexpensive tool to identify individuals at high risk of T2DM. The objective of this study was to determine the relationship between insulin resistance and TG/HDL-C in indigenous Argentinean children. METHODS: A cross-sectional study of 501 (243 boys) indigenous school children aged 10.0 ± 2.4 yr were assessed for anthropometry, lipids, glucose, and insulin levels from November 2011 to November 2013. Insulin resistance was defined as the upper third quartile of homeostasis model assessment (HOMA-IR). RESULTS: The prevalence of overweight/obesity was 11.4% per Centers for Disease Control. Mean levels of various characteristics were: body mass index (BMI) 17.2 ± 2.6, HDL-C 39 ± 9 mg/dL, TGs 121 ± 58 mg/dL, TG/HDL-C 2.9 ± 1.8, glucose 77 ± 8 mg/dL, HOMA-IR 1.0 ± 0.8, and insulin 44 ± 9 mUI/L. Children in the higher quartiles of TG/HDL-C had significantly higher HOMA-IR values than children in the lower quartiles. Multiple linear regression analysis showed that TG/HDL-C was significantly associated with HOMA-IR (r² = 0.19) adjusted for age, gender, and BMI. Furthermore, for a 1-unit increase in log TG/HDL-C, the odds of being insulin resistant (HOMA-IR>III quartile) increased by 2.58 times [odds ratio (OR), 2.58 (1.63-4.05); p < 0.01], adjusted for age, gender, and BMI. CONCLUSION: This study suggests that TG/HDL-C may be a good marker to identify insulin resistant indigenous Argentinean children.


Asunto(s)
HDL-Colesterol/sangre , Resistencia a la Insulina , Triglicéridos/sangre , Adolescente , Argentina/etnología , Niño , Estudios Transversales , Femenino , Humanos , Masculino , Factores Sexuales
4.
Spinal Cord ; 53(8): 615-20, 2015 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-25896346

RESUMEN

STUDY DESIGN: Case-control study. OBJECTIVES: To assess serum myostatin levels, bone mineral density (BMD), appendicular skeletal muscle mass (ASMM) and serum sclerostin levels in chronic spinal cord injured (SCI) patients and healthy controls. SETTING: SCI centre in Italy. METHODS: Blood samples, whole-body bioelectrical impedance analysis and BMD measurement with the ultrasound technique at the calcaneus level were taken from patients suffering from chronic SCI (both motor complete and incomplete) and healthy control subjects. RESULTS: A total of 28 SCI patients and 15 healthy controls were enrolled. Serum myostatin levels were statistically higher (P<0.01) in SCI patients compared with healthy controls. Similar results were found comparing both the motor complete and the motor incomplete SCI subgroups to healthy controls. Serum sclerostin was significantly higher in patients with SCI compared with healthy controls (P<0.01). BMD, stiffness and mean T-score values in SCI patients were significantly lower than those in healthy controls. Serum myostatin concentrations in the motor complete SCI subgroups correlated only with serum sclerostin levels (r(2)=0.42; P=0.001) and ASMM (r(2)=0.70; P=0.002) but not in healthy controls. DISCUSSION: Serum myostatin and serum sclerostin are significantly higher in chronic SCI patients compared with healthy controls. They are potential biomarkers of muscle and bone modifications after SCI. This is the first study reporting an increase in serum myostatin in patients suffering from chronic SCI and a correlation with ASMM.


Asunto(s)
Proteínas Morfogenéticas Óseas/sangre , Miostatina/sangre , Traumatismos de la Médula Espinal/sangre , Proteínas Adaptadoras Transductoras de Señales , Adolescente , Adulto , Análisis Químico de la Sangre , Enfermedad Crónica , Ensayo de Inmunoadsorción Enzimática , Femenino , Marcadores Genéticos , Humanos , Masculino , Persona de Mediana Edad , Trastornos del Movimiento/etiología , Índice de Severidad de la Enfermedad , Traumatismos de la Médula Espinal/complicaciones , Estadística como Asunto , Estadísticas no Paramétricas , Adulto Joven
5.
J Hazard Mater ; 474: 134657, 2024 Aug 05.
Artículo en Inglés | MEDLINE | ID: mdl-38838526

RESUMEN

The ceramic industry is a production sector that can efficiently recycle its own processing residues, achieving a reuse index of almost 100%. Recently, the range of waste from other industrial sectors that can be used as secondary raw materials in ceramic bodies has expanded. However, such an expansion potentially introduces hazardous components. This study aimed to quantitatively assess the efficiency of inertising hazardous elements (HEs) through ceramisation. The ceramics were characterised through XRPD, SEM-EDS and leaching tests to determine their leaching behaviour and the mechanisms of element immobilisation in neoformation phases during the ceramisation process. The results indicate high immobilisation efficiency for Ba, Co, Cr, Cu, Pb, Sb, Sn and Zn. However, Mo is the main element of concern owing to its poor retention in ceramic bodies. This is likely due to the formation of oxyanionic complexes that are difficult to immobilise in silicate matrices. In addition, the ceramic bodies exhibit substantial differences that appear to be associated with variations in pseudo-structural components and the degree of polymerisation of their vitreous phase.

6.
ESMO Open ; 8(5): 101824, 2023 10.
Artículo en Inglés | MEDLINE | ID: mdl-37774508

RESUMEN

BACKGROUND: This study investigated the efficacy of chemoradiotherapy (CRT) followed by durvalumab as neoadjuvant therapy of locally advanced rectal cancer. PATIENTS AND METHODS: The PANDORA trial is a prospective, phase II, open-label, single-arm, multicenter study aimed at evaluating the efficacy and safety of preoperative treatment with durvalumab (1500 mg every 4 weeks for three administrations) following long-course radiotherapy (RT) plus concomitant capecitabine (5040 cGy RT in 25-28 fractions over 5 weeks and capecitabine administered at 825 mg/m2 twice daily). The primary endpoint was the pathological complete response (pCR) rate; secondary endpoints were the proportion of clinical complete remissions and safety. The sample size was estimated assuming a null pCR proportion of 0.15 and an alternative pCR proportion of 0.30 (α = 0.05, power = 0.80). The proposed treatment could be considered promising if ≥13 pCRs were observed in 55 patients (EudraCT: 2018-004758-39; NCT04083365). RESULTS: Between November 2019 and August 2021, 60 patients were accrued, of which 55 were assessable for the study's objectives. Two patients experienced disease progression during treatment. Nineteen out of 55 eligible patients achieved a pCR (34.5%, 95% confidence interval 22.2% to 48.6%). Regarding toxicity related to durvalumab, grade 3 adverse events (AEs) occurred in four patients (7.3%) (diarrhea, skin toxicity, transaminase increase, lipase increase, and pancolitis). Grade 4 toxicity was not observed. In 20 patients (36.4%), grade 1-2 AEs related to durvalumab were observed. The most common were endocrine toxicity (hyper/hypothyroidism), dermatologic toxicity (skin rash), and gastrointestinal toxicity (transaminase increase, nausea, diarrhea, constipation). CONCLUSION: This study met its primary endpoint showing that CRT followed by durvalumab could increase pCR with a safe toxicity profile. This combination is a promising, feasible strategy worthy of further investigation.


Asunto(s)
Terapia Neoadyuvante , Neoplasias del Recto , Humanos , Capecitabina/farmacología , Capecitabina/uso terapéutico , Estudios Prospectivos , Neoplasias del Recto/tratamiento farmacológico , Neoplasias del Recto/patología , Quimioradioterapia/efectos adversos , Diarrea/inducido químicamente , Transaminasas/uso terapéutico
7.
Radiol Med ; 117(7): 1097-111, 2012 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-22438111

RESUMEN

PURPOSE: This study assessed whether the degree of bile-duct dilatation in liver-transplanted patients is correlated with the time from intervention and the type of underlying biliary stricture. METHODS AND MATERIALS: Fifty-seven 3D magnetic resonance cholangiograms (MRCs) performed on 42 liver-transplanted patients were retrospectively evaluated. Diameter was measured at the level of the extrahepatic bile duct (EBD), right hepatic duct (RHD), left hepatic duct (LHD), anterior and posterior right hepatic ducts (aRHD, pRHD) and left lateral and medial ducts (LLD, LMD). Data were stratified according to the type of biliary stricture (all types, anastomotic, ischaemic-like, mixed) and compared, on a per-examination basis: (a) between two groups based on time from transplantation using a 1-year threshold (nonlongitudinal analysis); (b) among 26 repeated examinations on 11 patients (longitudinal analysis); (c) among different stricture groups. RESULTS: The biliary tree was slightly dilated within 1 year from transplantation (2.9±1.3 to 6.1±3.2 mm). In general, nonlongitudinal analysis showed minimally larger duct size after 1 year (mean +1.4±0.5 mm) despite significant differences at most sites of measurement considering all types of strictures (p<0.01; Mann-Whitney U test). Longitudinal analysis showed diameter increase over time, although without statistically significant differences (p>0.01; Kruskal-Wallis test). No significant difference in bile-duct size was observed when comparing types of stricture (p>0.01; Kruskal-Wallis test). CONCLUSIONS: Biliary dilatation after liver transplantation is mild and develops slowly regardless of the underlying type of stricture, possibly in relation to graft properties. MRC has a potential role as first-line imaging modality for a reliable assessment of biliary dilatation and the presence of a stricture.


Asunto(s)
Conductos Biliares/patología , Pancreatocolangiografía por Resonancia Magnética , Trasplante de Hígado/patología , Adulto , Anciano , Constricción Patológica , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Estadísticas no Paramétricas
8.
Radiol Med ; 116(8): 1250-66, 2011 Dec.
Artículo en Inglés, Italiano | MEDLINE | ID: mdl-21744253

RESUMEN

PURPOSE: This study was performed to assess the role of magnetic resonance cholangiography (MRC) in the clinical decision-making process of referring physicians when managing liver-transplanted patients. MATERIALS AND METHODS: Over a 6-month period, 21 liver-transplanted patients with a suspected biliary complication were referred for MRC. Referring physicians were asked to prospectively state, before and after MRC, the leading diagnosis; the level of confidence (on a 0-100% scale); the most appropriate diagnostic/therapeutic plan. Data analysis assessed was the diagnostic yield of MRC; the proportion of change in the leading diagnosis; the therapeutic efficacy (i.e. proportion of change in the initial diagnostic/therapeutic plan); the diagnostic thinking efficacy (i.e., gain in diagnostic confidence). Statistical significance was assessed with the Mann-Whitney U test. MRC accuracy was also calculated. RESULTS: Data analysis showed a diagnostic yield of 85.7%; a proportion of change in leading diagnosis of 19.0%; a therapeutic efficacy of 42.8%; a diagnostic thinking efficacy for concordant and discordant leading diagnoses of 18.8% and 78.7%, respectively (p<0.01). MRC accuracy was 92.3%. CONCLUSIONS: MRC significantly increased the diagnostic confidence, irrespective of the concordance between pre- and posttest diagnoses. Moreover, MRC determined a change in patient management in a significant proportion of cases, leading to clinical benefits.


Asunto(s)
Enfermedades de los Conductos Biliares/diagnóstico , Pancreatocolangiografía por Resonancia Magnética , Trasplante de Hígado , Adulto , Anciano , Enfermedades de los Conductos Biliares/etiología , Pancreatocolangiografía por Resonancia Magnética/métodos , Femenino , Estudios de Seguimiento , Humanos , Trasplante de Hígado/efectos adversos , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Estudios Prospectivos , Reproducibilidad de los Resultados , Sensibilidad y Especificidad
9.
Haemophilia ; 16(3): 437-46, 2010 May.
Artículo en Inglés | MEDLINE | ID: mdl-20148978

RESUMEN

Although a number of studies have analysed so far the causes of death and the life expectancy in haemophilic populations, no investigations have been conducted among Italian haemophilia centres. Thus, the aim of this study was to investigate mortality, causes of deaths, life expectancy and co-morbidities in Italian persons with haemophilia (PWH). Data pertaining to a total of 443 PWH who died between 1980 and 2007 were retrospectively collected in the 30 centres who are members of the Italian Association of Haemophilia Centres that chose to participate. The mortality rate ratio standardized to the male Italian population (SMR) was reduced during the periods 1990-1999 and 2000-2007 such that during the latter, death rate overlapped that of the general population (SMR 1990-1999: 1.98 95% CI 1.54-2.51; SMR 2000-2007: 1.08 95% CI 0.83-1.40). Similarly, life expectancy in the whole haemophilic population increased in the same period (71.2 years in 2000-2007 vs. 64.0 in 1990-1999), approaching that of the general male population. While human immunodeficiency virus infection was the main cause of death (45%), 13% of deaths were caused by hepatitis C-associated complications. The results of this retrospective study show that in Italian PWH improvements in the quality of treatment and global medical care provided by specialized haemophilia centres resulted in a significantly increased life expectancy.


Asunto(s)
Hemofilia A/mortalidad , Hemofilia B/mortalidad , Esperanza de Vida , Adolescente , Adulto , Anciano , Causas de Muerte , Niño , Preescolar , Femenino , Infecciones por VIH/complicaciones , Infecciones por VIH/mortalidad , Hemofilia A/complicaciones , Hemofilia B/complicaciones , Hepatitis C/complicaciones , Hepatitis C/mortalidad , Humanos , Italia/epidemiología , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Adulto Joven
10.
Biochim Biophys Acta ; 1771(2): 139-46, 2007 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-17234448

RESUMEN

9-hydroxystearic acid (9-HSA) belongs to the class of endogenous lipid peroxidation by-products that greatly diminish in tumors, causing as a consequence the loss of one of the control mechanisms on cell division. We have previously shown that 9-HSA controls cell growth and differentiation by inhibiting histone deacetylase 1 (HDAC1) activity. In this paper our attention has not only been focused on HDAC1 inhibition but also on the hyperacetylation of other substrates such as p53, that is involved in inducing cell cycle arrest and/or apoptosis, and whose activity and stability are known to be regulated by posttranslational modifications, particularly by acetylation at the C-terminus region. 9-HSA administration to U2OS, an osteosarcoma cell line p53 wt, induces a growth arrest of the cells in G2/M and apoptosis via a mitochondrial pathway. In particular hyperacetylation of p53 induced by the HDAC1 inhibitory activity of 9-HSA has been demonstrated to increase Bax synthesis both at the transcriptional and the translational level. The subsequent translocation of Bax to the mitochondria is associated to a significant increase in caspase 9 activity. Our data demonstrate that the effects of 9-HSA on U2OS correlate with posttranslational modifications of p53.


Asunto(s)
Osteosarcoma/metabolismo , Transducción de Señal , Ácidos Esteáricos/farmacología , Proteína p53 Supresora de Tumor/metabolismo , Acetilación , Apoptosis , Línea Celular Tumoral , Proliferación Celular , Inhibidor p21 de las Quinasas Dependientes de la Ciclina/metabolismo , Humanos , Regiones Promotoras Genéticas , Ácidos Esteáricos/toxicidad , Proteína X Asociada a bcl-2/genética
11.
Neuroscience ; 152(2): 449-58, 2008 Mar 18.
Artículo en Inglés | MEDLINE | ID: mdl-18280049

RESUMEN

It is known that gastric mechanoreceptor stimuli are widely integrated into neuronal circuits that involve visceral nuclei of hindbrain as well as several central brain areas. GABAergic neurons are widely represented in hindbrain nuclei controlling gastric motor functions, but limited information is available specifically about GABA(A)-responding neurons in brain visceral areas. The present investigation was designed to determine the central sensory neuronal pathways and their GABA(A)-alpha1 and -alpha3 receptor presenting neurons that respond to gastric mechanoreceptor stimulation within the entire rat brain. Low pressure gastric distension was used to deliver physiological mechanical stimuli in anesthetized rats, and different protocols of gastric distension were performed to mimic different stimulation patterns with and without sectioning vagal and/or splanchnic afferent nerves. Mapping of activated neurons was investigated using double colorimetric immunohistochemistry for GABA(A)-alpha1 or -alpha3 subunits and c-Fos. Following stomach distension, neurons expressing GABA(A) receptors with alpha1 or alpha3 subunits were detected. Low frequency gastric distension induced c-Fos expression in nucleus tractus solitarii (NTS) only, whereas in the high frequency gastric distension c-Fos positive nuclei were found in lateral reticular nucleus and in NTS in addition to some forebrain areas. In contrast, during the tonic-rapid gastric distension the neuronal activation was found in hindbrain, midbrain and forebrain areas. Moreover different protocols of gastric stimulation activated diverse patterns of neurons presenting GABA(A)-alpha1 or -alpha3 receptors within responding brain nuclei, which may indicate a probable functional significance of differential expression of GABA(A)-responding neurons. The same protocol of gastric distension performed in vagotomized rats has confirmed the primary role of the vagus in the response of activation of gastric brain areas, whereas neuronal input of splanchnic origins was shown to play an important role in modulating the mechanogastric response of brain areas.


Asunto(s)
Encéfalo/metabolismo , Regulación de la Expresión Génica/fisiología , Receptores de GABA-A/metabolismo , Estómago/inervación , Aferentes Viscerales/fisiología , Animales , Encéfalo/citología , Recuento de Células , Masculino , Estimulación Física/métodos , Proteínas Proto-Oncogénicas c-fos/genética , Proteínas Proto-Oncogénicas c-fos/metabolismo , Ratas , Ratas Sprague-Dawley , Receptores de GABA-A/clasificación , Aferentes Viscerales/citología
12.
Redox Rep ; 23(1): 35-40, 2018 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-28853330

RESUMEN

BACKGROUND: Children living at high altitude in San Antonio de los Cobres (SAC), Argentina, were shown to have lower high-density lipoprotein cholesterol (HDL-C) levels than Buenos Aires (BA) children. HDL antioxidant capacity is mainly attributed to paraoxonase1 (PON1). OBJECTIVE: To compare PON1 activity in indigenous SAC vs. BA children. METHODS: A cross-sectional study compared 158 SAC vs. 97 BA children (6-16 years). Anthropometric data and lipoprotein profile were measured. PON1 was evaluated employing paraoxon (PON) and phenylacetate (ARE) activity. RESULTS: The prevalence of overweight/obesity was lower in SAC than in BA children (18.3 vs. 30.9%). Triglycerides (1.34 vs. 0.90 mmol/l), apo B (0.84 vs.0.72 g/l), apo A-I (1.33 vs. 1.27 g/l), and ARE activity (100 vs. 90 µmol/ml/min) were higher, while HDL-C (1.16 vs. 1.32 mmol/l) and PON activity (170 vs. 203 nmol/ml/min) were lower in SAC than in BA. Separate multiple linear regression analyses showed that SAC children had significantly higher triglyceride (Beta -0.38), apo B (Beta -0.34), and ARE (Beta -0.36) plus lower HDL-C (Beta 0.33) and PON (Beta 0.25) compared with BA; adjusted for age, gender, and BMI. CONCLUSION: SAC showed an unfavorable lipoprotein profile, lower PON and higher ARE activities compared with BA children, suggesting the presence of altered HDL metabolism and antioxidant capacity.


Asunto(s)
Arildialquilfosfatasa/sangre , Obesidad Infantil/enzimología , Adolescente , Altitud , Apolipoproteína A-I/sangre , Argentina/epidemiología , Argentina/etnología , Arildialquilfosfatasa/genética , Arildialquilfosfatasa/metabolismo , Niño , HDL-Colesterol/sangre , Estudios Transversales , Femenino , Humanos , Modelos Lineales , Lípidos/sangre , Masculino , Obesidad Infantil/epidemiología , Fenilacetatos/metabolismo , Factores de Riesgo , Triglicéridos/sangre
15.
Artículo en Inglés | MEDLINE | ID: mdl-27804851

RESUMEN

BACKGROUND: Studies in adults show that central obesity increases the likelihood of Type 2 diabetes (T2DM). OBJECTIVE: To determine the association between waist circumference (WC) and non-traditional risk factors such as magnesium (Mg), phosphorus, and uric acid in indigenous children living at high altitudes. METHODS: A total of 354 (166 M) indigenous school children, aged 9.6 + 2.3 years, were enrolled in a cross-sectional study in November 2011. Central obesity was defined as WC > 90th percentile according to age and sex. Low Mg and phosphorus levels were defined as serum Mg <1.8 mg/dL and phosphorus <2.4 mg/dL . Hyperuricemia was defined as serum uric acid > 7 mg/dL. RESULTS: The prevalence of central obesity was 6.8% (24/354). None of the children had hyperuricemia or low P levels. HypoMg was identified in 21.7% (57/263). There was a significant association between WC (z-score) and Mg (r-015), uric acid (r0.28), phosphorus (r-0.30), HOMA-IR (r0.49), Triglycerides (r0.24), and HDL-C (r0.24). However, calcium, sodium, and potassium were not significantly associated with WC. As z-WC quartiles increased Mg and phosphorus levels significantly decreased, whereas uric acid levels increased. Multiple linear regression analysis showed that z-WC was associated significantly and directly with uric acid (B0.31), triglycerides (B0.004), and HOMA-IR (B0.35); and inversely with Mg (B-0.83) and phosphorus (B-0.25), adjusted for confounding variables (R2 0.34). CONCLUSION: Our results indicate that central obesity was significantly and inversely associated with Mg and phosphorus and directly with uric acid in indigenous school children. Supplementation with Mg and/or phosphorus could prevent future cardiovascular disease. Prospective and randomized studies should be performed to confirm these findings.

16.
Circulation ; 101(21): 2539-45, 2000 May 30.
Artículo en Inglés | MEDLINE | ID: mdl-10831530

RESUMEN

BACKGROUND: Gallbladder pathology has been associated with cardiovascular disease. Recently, we showed that gallbladder distension in anesthetized pigs reflexly increased heart rate, arterial pressure, and coronary and renal vascular resistance through efferent sympathetic mechanisms. Renin release is affected by sympathetic output, and angiotensin liberation may result in vasoconstriction. This study was undertaken to determine whether gallbladder distension primarily causes a reflex change in plasma renin activity (PRA) and to assess its influence on observed pressor and coronary responses as well as on regional vascular resistance. METHODS AND RESULTS: In 34 alpha-chloralose-anesthetized pigs, balloons positioned within the gallbladder were distended for 30 minutes with volumes of Ringer's solution equal to those of withdrawn bile. In 19 pigs, gallbladder distension at constant heart rate, arterial pressure, and renal flow increased PRA in the absence of changes in urinary sodium excretion. This increase was abolished by cervical vagotomy, section of renal nerves, or blockade of beta-adrenergic receptors. In another 15 pigs, blockade of angiotensin II receptors significantly attenuated the pressor and coronary, mesenteric, and iliac vasoconstriction responses to gallbladder distension. CONCLUSIONS: The present study showed that innocuous gallbladder distension primarily caused a reflex increase in PRA. This increase, which involved afferent vagal pathways and efferent sympathetic mechanisms related to beta-adrenergic receptors, contributed significantly to the pressor and coronary, mesenteric, and iliac vasoconstriction responses to gallbladder distension.


Asunto(s)
Vesícula Biliar/fisiología , Renina/sangre , Animales , Presión Sanguínea/fisiología , Cloralosa/farmacología , Circulación Coronaria/fisiología , Frecuencia Cardíaca/fisiología , Riñón/inervación , Propranolol/farmacología , Reflejo/fisiología , Circulación Renal/fisiología , Sodio/orina , Porcinos , Sistema Nervioso Simpático/fisiología , Vagotomía , Resistencia Vascular/fisiología
17.
Minerva Ginecol ; 67(5): 475-83, 2015 Oct.
Artículo en Italiano | MEDLINE | ID: mdl-26491826

RESUMEN

AIM: We conducted a pilot study to evaluate the effectiveness of resveratrol absorbed orally, conveyed through a new patented technology that increases the absorption through the oral mucosa in treatment of hot flushes (HF) during menopause. METHODS: This is a randomized controlled double-blind study with crossover design. From October 2012 to July 2014 we considered the first 50 patients enrolled at the Center for Menopause Maggiore Hospital of Charity of Novara, with diagnosis of physiological or surgical menopause. Each woman received a diary in which she indicated the weekly number of HF and the perceived intensity, in a 0-10 Scale (Visual Analogue Scale, VAS). RESULTS: Reduction of the monthly number of vasomotor episodes. Resveratrol 16/28 (57.1%); P2/22 placebo (9.1%) <0.001. The resveratrol group gets a positive result 6.28 times more compared to the placebo arm (95% CI: 1.61-24.49). Improvement of the intensity of symptoms and improving quality of life: resveratrol 22/28 (78.6%); placebo 4/22 P (18.2%) <0.001. Resveratrol group obtained a positive result 4:32 times more than the placebo arm (95% CI: 1.74-10.71). CONCLUSION: Resveratrol is effective in reducing the number of episodes vasomotor and the intensity of HF, with the transition from moderate/severe to mild symptoms in 78.6% of patients. Resveratrol has the characteristics to be an alternative therapy in the treatment of HF in menopause.


Asunto(s)
Sofocos/tratamiento farmacológico , Menopausia , Calidad de Vida , Estilbenos/uso terapéutico , Estudios Cruzados , Método Doble Ciego , Femenino , Humanos , Italia , Persona de Mediana Edad , Proyectos Piloto , Resveratrol , Resultado del Tratamiento
18.
Eur Rev Med Pharmacol Sci ; 19(13): 2446-51, 2015 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-26214781

RESUMEN

OBJECTIVE: Skeletal Muscle Biopsy is a minor surgical procedure for the diagnosis of different neuromuscular pathological conditions and has recently gained popularity also in the research field of age-related muscular modifications and sarcopenia. Few studies focused on the application of mini-invasive muscular biopsy in both normal and pathological conditions. The aim of our study was to describe a mini invasive ultrasound-guided skeletal muscular biopsy technique in complete spinal cord injured (SCI) patients and healthy controls with a tri-axial end-cut needle. PATIENTS AND METHODS: Skeletal muscle biopsies were collected from 6 chronic SCI patients and 3 healthy controls vastus lateralis muscle with a tri-axial end cut needle (Biopince© - Angiotech). Muscle samples were stained for ATPase to determine fibers composition, moreover, gene expression of cyclooxygenase-1 (COX-1) and prostaglandin E2 receptor has been analyzed by Real Time RT-PCR. RESULTS: All the procedures were perfomed easily without failures and complications. Control tissue was macroscopically thicker than SCI one. Control specimen displayed an equal distribution of type I and type II fibers, while SCI sample displayed a prevalence of type II fibers SCI specimen displayed a significant reduction in COX-1 gene expression. This mini-invasive approach was easy, accurate and with low complication rate in performing skeletal muscle biopsy in both SCI patients and controls. CONCLUSIONS: This technique could be useful in conditions in which the overall quantity of specimen required is small like for molecular biology analysis. For histological diagnostic purposes and/or conditions in which the original tissue is already pathologically modified, this technique should be integrated with more invasive techniques.


Asunto(s)
Músculo Esquelético/patología , Agujas , Traumatismos de la Médula Espinal/complicaciones , Traumatismos de la Médula Espinal/diagnóstico , Adulto , Biopsia/instrumentación , Biopsia/métodos , Femenino , Humanos , Masculino , Sarcopenia/diagnóstico , Sarcopenia/etiología , Técnicas de Sutura/instrumentación
19.
Eur J Phys Rehabil Med ; 51(4): 353-9, 2015 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-25051207

RESUMEN

BACKGROUND: The most important adverse effect of BoNT-A is the systemic diffusion of the toxin. There is some evidence that the administration of high doses can increase the risk of systemic diffusion and the development of clinically evident adverse effects, however an international consensus does not exist about its maximum dose. AIM: The aim of this study was to evaluate changes in autonomic heart drive induced by high doses (higher than 600 units) of incobotulinumtoxinA injection in spastic stroke patients. Moreover, the treatment safety by monitoring adverse events occurrence was assessed. DESIGN: Case control study. POPULATION: Eleven stroke survivors with spastic hemiplegia. METHODS: Patients were treated with intramuscular focal injections of IncobotulinumtoxinA (NT 201; Xeomin®, Merz Pharmaceuticals GmbH, Frankfurt, Germany). Doses were below 12 units/Kg. Each patient underwent an ECG recording before injection and 10 days after treatment. Linear and non-linear Heart Rate variability (HRV) measures were derived from ECGs with a dedicated software. RESULTS: None of the variable considered showed statistically significant changes after BoNT-A injection. CONCLUSION: The use of incobotulinumtoxinA in adult patients at doses up to 12 units/kg seems to be safe regarding autonomic heart drive. CLINICAL REHABILITATION IMPACT: The use of IncobotulinumtoxinA up to 600 units could be a safe therapeutic option in spastic hemiplegic stroke survivors.


Asunto(s)
Sistema Nervioso Autónomo/fisiopatología , Toxinas Botulínicas Tipo A/administración & dosificación , Botulismo/complicaciones , Electrocardiografía/efectos de los fármacos , Frecuencia Cardíaca/fisiología , Hemiplejía/tratamiento farmacológico , Adulto , Anciano , Sistema Nervioso Autónomo/efectos de los fármacos , Botulismo/microbiología , Relación Dosis-Respuesta a Droga , Femenino , Estudios de Seguimiento , Frecuencia Cardíaca/efectos de los fármacos , Hemiplejía/etiología , Hemiplejía/fisiopatología , Humanos , Inyecciones Intramusculares , Masculino , Persona de Mediana Edad , Neurotoxinas/administración & dosificación , Estudios Retrospectivos , Accidente Cerebrovascular/complicaciones , Resultado del Tratamiento
20.
Diabetes Metab ; 41(4): 319-325, 2015 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-25530450

RESUMEN

AIM: As the treatment of hyperglycaemia during pregnancy with diet or insulin reduces the risk of adverse maternal outcomes and perinatal complications, screening for gestational diabetes mellitus (GDM) is included, albeit to variable extents, in all guidelines of care for pregnant women. The aim of the present investigation was to estimate the proportion of pregnancies screened for GDM in Lombardy between 2007 and 2010, and to identify predictors of screening. METHODS: A retrospective cross-sectional study using regional healthcare utilization databases of Lombardy was conducted. The study included all residents of Lombardy without pregestational diabetes who delivered between 1 January 2007 and 31 December 2010. The proportion of pregnancies with at least one screening test for GDM was calculated, along with the odds ratios and 95% confidence intervals associated with selected covariates for GDM screening. RESULTS: Of the 362,818 pregnancies included in the sample, 30% were screened for GDM. The proportion of pregnancies screened increased slightly from 2007 (27%) to 2010 (33%) and with maternal age (from 28% among women<25 years to 32% among those ≥35 years), and varied widely across local health management organizations (HMOs) of residence (range: 20% to 68%). Socioeconomic indicators (education, immigrant status), obstetric history and prepregnancy hypertension were independent predictors of GDM screening. CONCLUSION: The study finding of a low rate of pregnant women screened for GDM among residents of Lombardy supports the need for programmes to improve training of healthcare professionals, to raise women's awareness of GDM and to eliminate barriers to GDM screening.


Asunto(s)
Diabetes Gestacional/diagnóstico , Diabetes Gestacional/epidemiología , Tamizaje Masivo/estadística & datos numéricos , Diagnóstico Prenatal/estadística & datos numéricos , Adulto , Peso al Nacer , Estudios Transversales , Femenino , Prueba de Tolerancia a la Glucosa , Humanos , Recién Nacido , Italia/epidemiología , Embarazo , Resultado del Embarazo/epidemiología , Estudios Retrospectivos , Adulto Joven
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