8,769 research outputs found
Breastfeeding education: where are we going? A systematic review article
Background: UNICEF (United Nations International Children’s Emergency Fund) and WHO estimate that if all babies were breastfed for at least the first six months of their lives, the rate of morbidity and malnutrition would sig-nificantly decrease all over the world. In this view, these two organizations promoted a worldwide campaign for breastfeeding, creating the Baby Friendly Hospital Initiative (BFHI) that encourages good practices for the promotion of breastfeeding in hospitals. The aim of our study was to review the available evidence regarding the positive effects of breastfeeding, in order to suggest to most appropriate strategy to support it. Methods: The main databases including Scopus, PubMed, MEDLINE, Google scholar and Science Direct were researched to obtain the original papers related to breastfeeding education. The main terms used to literature search were "Breastfeeding education", Breastfeeding support", and “Breastfeeding healthcare policy”. The timeframe in-cluded the obtained articles was from 1980 to 2015. Results: Our analysis confirms that healthcare providers play a pivotal role in education and encouraging mothers to begin and continue breastfeeding. In this view, the adequate training of healthcare providers seems to be mandatory in order to support this practice. Moreover, adequate facilities are needed in order to promote and support breastfeeding. Conclusion: Considering the available evidence, breastfeeding should be supported among all the mothers. Based on the positive data emerging from the public awareness campaign in different Countries of the world, we strongly en-courage an accurate training for doctors and midwives and the implementation of adequate facilities in order to sup-port breastfeeding
A multi-methodological protocol to characterize PDO olive oils
An analytical approach including Panel Test, Isotope Ratio Mass Spectrometry (IRMS)
and Nuclear Magnetic Resonance (NMR) spectroscopy was proposed to characterize Italian “Colline
Pontine” PDO olive oils (40 samples) of two consecutive crop years. Our approach has evidenced
the high quality of these olive oils. Only 6 of 40 olive oils samples were defined as “defective” by the
official Panel Test due to the detection of negative sensory attributes. The low variability of isotopic
data monitored by IRMS confirmed that the olive oil samples all came from a limited geographical
area. NMR spectra did not evidence any chemical composition anomaly in the investigated samples.
In order to assess the influence of harvesting year over the olive oil chemical composition, the NMR
analysis was extended to other 22 olive oil samples of a third harvesting year. NMR data were
submitted to two different statistical methods, namely, analysis of variance (ANOVA) and principal
component analysis (PCA) allowing olive oils of three consecutive harvesting years to be grouped
Prognostic factors influencing infectious complications after cytoreductive surgery and HIPEC. Results from a tertiary referral center
Background. Cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy
(HIPEC) showed promising results in selected patients. High morbidity restrains its wide
application. The aim of this study was to report postoperative infectious complications and
investigate possible correlations with preoperative nutritional status and other prognostic factors in
patients with peritoneal metastases treated with CRS and HIPEC.
Methods. For the study we reviewed the clinical records of all patients with peritoneal metastases
from different primary cancers and treated by CRS and HIPEC in our Institution from November
2000 to December 2017. Patients were divided according to their nutritional status (SGA) in group
A (well-nourished), B/C (mild or severely malnourished). Possible statistical correlations between
risk factors and postoperative complications rates have been investigated by univariate and
multivariate analysis.
Results. Two hundred patients were selected and underwent CRS and HIPEC during the study
period. Postoperative complications occurred in 44% of the patients, 35.3% in SGA-A patients and
53% in SGA-B /C patients. Cause of complications was infective in 42, non-infective in 37 and
HIPEC related in 9 patients. Infectious complications occurred more frequently in SGA-B /C
patients (32.6% vs. 9.8% of SGA-A patients). The most frequent sites of infection were Surgical
Site Infections (SSI, 35.7%) and Central Line Associated BloodStream Infections (CLABSI,
26.2%). The most frequent isolated species was Candida (22.8%). ASA score, blood loss,
performance status, PCI, large bowel resection, postoperative serum albumin levels and nutritional
status correlated with higher risk for postoperative infectious complications.
Conclusions. Malnourished patients undergoing cytoreductive surgery and hyperthermic
intraperitoneal chemotherapy are more prone to post-operative infectious complications and
adequate perioperative nutritional support should be considered, including immune-enhancing
nutrition. Sequential monitoring of common sites of infection, antifungal prevention of candidiasis,
and careful patient selection should be implemented to reduce complications rate
Histone acetyltransferase inhibitor CPTH6 preferentially targets lung cancer stem-like cells
Cancer stem cells (CSCs) play an important role in tumor initiation, progression,
therapeutic failure and tumor relapse. In this study, we evaluated the efficacy of
the thiazole derivative 3-methylcyclopentylidene-[4-(4’-chlorophenyl)thiazol-2-yl]
hydrazone (CPTH6), a novel pCAF and Gcn5 histone acetyltransferase inhibitor, as a
small molecule that preferentially targets lung cancer stem-like cells (LCSCs) derived
from non-small cell lung cancer (NSCLC) patients. Notably, although CPTH6 inhibits
the growth of both LCSC and NSCLC cell lines, LCSCs exhibit greater growth inhibition
than established NSCLC cells. Growth inhibitory effect of CPTH6 in LCSC lines is
primarily due to apoptosis induction. Of note, differentiated progeny of LCSC lines
is more resistant to CPTH6 in terms of loss of cell viability and reduction of protein
acetylation, when compared to their undifferentiated counterparts. Interestingly, in
LCSC lines CPTH6 treatment is also associated with a reduction of stemness markers.
By using different HAT inhibitors we provide clear evidence that inhibition of HAT
confers a strong preferential inhibitory effect on cell viability of undifferentiated
LCSC lines when compared to their differentiated progeny. In vivo, CPTH6 is able to
inhibit the growth of LCSC-derived xenografts and to reduce cancer stem cell content
in treated tumors, as evidenced by marked reduction of tumor-initiating capacity in
limiting dilution assays. Strikingly, the ability of CPTH6 to inhibit tubulin acetylation
is also confirmed in vivo. Overall, our studies propose histone acetyltransferase
inhibition as an attractive target for cancer therapy of NSCLC
Secreted miR-210-3p as non-invasive biomarker in clear cell renal cell carcinoma
The most common subtype of renal cell carcinoma (RCC) is clear cell RCC (ccRCC).
It accounts for 70-80% of all renal malignancies representing the third most common
urological cancer after prostate and bladder cancer. The identification of non-invasive
biomarkers for the diagnosis and responsiveness to therapy of ccRCC may represent
a relevant step-forward in ccRCC management. The aim of this study is to evaluate
whether specific miRNAs deregulated in ccRCC tissues present altered levels also
in urine specimens. To this end we first assessed that miR-21-5p, miR-210-3p and
miR-221-3p resulted upregulated in ccRCC fresh frozen tissues compared to matched
normal counterparts. Next, we evidenced that miR-210-3p resulted significantly upregulated
in 38 urine specimens collected from two independent cohorts of ccRCC
patients at the time of surgery compared to healthy donors samples. Of note, miR-
210-3p levels resulted significantly reduced in follow-up samples. These results point
to miR-210-3p as a potential non-invasive biomarker useful not only for diagnosis
but also for the assessment of complete resection or response to treatment in ccRCC
management
Retinoic acid signaling in axonal regeneration
Following an acute central nervous system (CNS) injury, axonal regeneration and functional recovery are extremely limited. This is due to an extrinsic inhibitory growth environment and the lack of intrinsic growth competence. Retinoic acid (RA) signaling, essential in developmental dorsoventral patterning and specification of spinal motor neurons, has been shown through its receptor, the transcription factor RA receptor β2 (RARβ2), to induce axonal regeneration following spinal cord injury (SCI). Recently, it has been shown that in dorsal root ganglion neurons (DRGs), cAMP levels were greatly increased by lentiviral RARβ2 expression and contributed to neurite outgrowth. Moreover, RARβagonists, in cerebellar granule neurons (CGN) and in the brain in vivo, induced phosphoinositide 3-kinase dependent phosphorylation of AKT that was involved in RARβ-dependent neurite outgrowth. More recently, RA-RARβpathways were shown to directly transcriptionally repress a member of the inhibitory Nogo receptor (NgR) complex, Lingo-1, under an axonal growth inhibitory environment in vitro as well as following spinal injury in vivo. This perspective focuses on these newly discovered molecular mechanisms and future directions in the field
Pancreatoduodenectomy without vascular resection in patients with primary resectable adenocarcinoma and unilateral venous contact:A matched case study
Purpose. To investigate the oncological outcome and survival of patients following a conservative approach on the portal- mesenteric axis, in an intraoperative ultrasound-selected group of pancreatoduodenectomy (PD), performed on patients with primary resectable with vascular contact (prVC) pancreatic ductal adenocarcinoma (PDAC). Methods. A consecutive series of patients who underwent PD for PDAC at our tertiary care center, between 2008 and 2017, were reviewed. A total of 156 PDs and 88 total pancreatectomies were performed during the study period, including 35 vascular resections. We identified a group of 40 (25.6%) patients with prVC-PDAC in whom after checking the feasibility with intraoperative ultrasound, we were able to perform PD by separation of the tumor from the portomesenteric axis avoiding vascular resection, without residual macroscopic disease (no vascular resection, nvrPD), and compared this group, using case-matched methodology, with the standard PD (sPD) group of primary resectable without vascular contact- (prwVC-) PDAC. Results. The median follow-up was 28.5 ± 23.2 months in the sPD group and 23.8 ± 20.8 months in the nvrPD group (p = 0 35). Isolated local recurrence rate was 2/40 (5%) in both groups. Additionally, there were no statistical differences in the systemic progression of the disease (42.5% sPD vs. 45% nvrPD, p = 0 82) or local plus synchronous systemic disease rates (2.5% sPD vs. 7.5% nvrPD, p = 0 30). The median survival was 22 months for the sPD group and 23 months for the nvrPD group, p = 0 86. The overall survival was similar in the two groups (1 y: 76.3% sPD vs. 70.0% nvrPD; 3 y: 35.6% vs. 31.6%; and 5 y: 28.5% vs. 25.3%; p = 0 80). Conclusions. PD without vascular resection can be considered safe and oncologically acceptable in selected patients with preoperative diagnosis of prVC-PDAC. The poor prognosis of PDAC is related to the aggressive biology and systemic spread of the tumor, rather than the local control of the disease
Primary prevention with statins and incident diabetes in hypertensive patients at high cardiovascular risk
Cerchar Abrasivity test in tunnelling: a modified version for evaluating the performance of conditioning agents as wear preventers
The Cerchar Abrasivity test is used for assessing the abrasion of rock due to its simplicity and fast execution and it is considered one of the main wear indexes in tunnelling. Despite in standard condition the test is performed on a dry surface of a rock sample, this study introduces the possibility
to carry out the test on a conditioned surface. In details, this work compares the Cerchar Abrasivity Index (CAI) results of rock specimens subjected to three conditions: dry, saturated with water, and saturated with a polymeric slurry.
First, dry samples were prepared according to the standard procedure while the second and the third sets have been planned in order to simulated the injection of water and polymers respectively, a practise that is nowadays accepted in construction site where rock TBMs are adopted. Results put alight that the use of conditioning such as water and polymeric slurry on the rock leads to a reduction of the wear potential of the rock itself. Notably, the rock specimen treated with the polymer slurry exhibited the lower value of CAI (with a reduction of 34% compared to the dry sample). The potential benefits of use specific preventing-wear polymer in rock excavation is in conclusion analysed
Search for spontaneous muon emission from lead nuclei
We describe a possible search for muonic radioactivity from lead nuclei using
the base elements ("bricks" composed by lead and nuclear emulsion sheets) of
the long-baseline OPERA neutrino experiment. We present the results of a Monte
Carlo simulation concerning the expected event topologies and estimates of the
background events. Using few bricks, we could reach a good sensitivity level.Comment: 12 pages, 4 figure
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