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Objective: Cerebral vasomotor reactivity (VMR) and coherence of resting state electroencephalographic (EEG) rhythms are impaired in Alzheimer's disease (AD) patients. Here we tested the hypothesis that these two variables could be related., Methods: We investigated VMR and coherence of resting state EEG rhythms in nine normal elderly (Nold) and in 10 amnesic mild cognitive impairment (MCI) subjects. Resting state eyes-closed EEG data were recorded at baseline pre-CO₂ (ambient air, 2 min), during 7% CO₂/air mixture inhalation (hypercapnia, 90 s) and post-CO₂ (ambient air, 2 min) conditions. Simultaneous frontal bilateral near-infrared spectroscopy (NIRS) was performed to assess VMR by cortical oxy- and deoxy-haemoglobin concentration changes. EEG coherence across all electrodes was computed at delta (2-4 Hz), theta (4-8 Hz), alpha 1 (8-10.5 Hz), alpha 2 (10.5-13 Hz), beta 1 (13-20 Hz), beta 2 (20-30 Hz) and gamma (30-40 Hz) bands., Results: In Nold subjects, 'total coherence' of EEG across all frequency bands and electrode pairs decreased during hypercapnia, with full recovery during post-CO₂. Total coherence resulted lower in pre-CO₂ and post-CO₂ and presented poor reactivity during CO₂ inhalation in MCI patients compared with Nold subjects. Hypercapnia increased oxy-haemoglobin and decreased deoxy-haemoglobin concentrations in both groups. Furthermore, the extent of changes in these variables during CO₂ challenge was correlated with the EEG coherence, as a reflection of neurovascular coupling., Conclusions: Hypercapnia induced normal frontal VMR that was detected by NIRS in both Nold and amnesic MCI groups, while it produced a reactivity of global functional coupling of resting state EEG rhythms only in the Nold group., Significance: In amnesic MCI patients, global EEG functional coupling is basically low in amplitude and does not react to hypercapnia., (Copyright © 2013 International Federation of Clinical Neurophysiology. Published by Elsevier Ireland Ltd. All rights reserved.)

Objective: Lymph node status has significant pathologic implications in patients with prostate cancer. In this study, we have performed pathologic analysis of prostatic anterior fat pad (PAFP) excised during robot-assisted radical prostatectomy (RARP) to investigate the potential role of AFP on pathologic staging of prostate cancer., Methods: A total of 258 consecutive patients underwent PAFP excision during RARP between July 2007 and June 2009. PAFP was removed and submitted en bloc to the pathology department and evaluated for the presence of lymphoid tissue and metastatic prostate cancer. Retrospective chart review was performed for all patients., Results: Of the 258 patients, 30 (11.6%) had 1 or 2 PAFP lymph nodes and 228 (88.4%) men showed no lymphoid tissue in their PAFPs. Preoperatively, mean PSA level was higher in the former group. There were no significant pathologic differences between the 2 groups. Among the 30 patients with PAFP lymph nodes, 3 were positive for metastatic prostate cancer. All 3 of these patients had high-risk features preoperatively. In 1 patient, the pelvic lymph nodes were negative for metastatic prostate cancer. At 2-year follow-up, PSA level of this patient was undetectable., Conclusions: Herein, we demonstrated that the PAFP contained lymph nodes in over 11% of the patients undergoing RARP at our institution. Prostate cancer was upstaged in 1 patient as a result of PAFP excision. Since this patient is free of biochemical recurrence at 2 years, routine excision and pathologic analysis of PAFP should be considered in prostate cancer patients undergoing radical prostatectomy., (Copyright © 2013 Elsevier Inc. All rights reserved.)

Background: Crohn's disease (CD) is a chronic, relapsing and remitting inflammatory bowel disease. The relationship of attachment to the illness is considered to be bidirectional., Objective: The authors investigated aspects of this bidirectional relationship., Method: A group of 102 patients with CD and 306 healthy subjects filled out the Attachment Style Questionnaire and the Parental Bonding Instrument., Results: Patients with CD exhibit a predominantly insecure attachment and perceived their parents' behaviors as characterized by low maternal care and high paternal overprotection., Discussion: The evaluation of attachment style and early parental experiences in patients with CD may shed light on the bidirectional relationship between attachment and illness. These findings may confirm the bidirectional relationship between insecure attachment and chronic illness.

Background: Previous studies have shown a relationship between inflammatory bowel disease (IBD) and psychological stress. Adverse parenting is recognized as an important risk factor for the development of psychiatric disorders in adulthood., Objective: The authors sought to further investigate this relationship by clarifying aspects of the bonding relationship in IBD patients and control subjects., Method: A group of 307 patients with IBD and a group of 307 healthy subjects filled out the questionnaire Parental Bonding Instrument., Results: Patients with IBD perceived their parents' behaviors as characterized by low care and paternal overprotection; the category Optimal Parenting differs highly in the two samples., Conclusion: This study demonstrated an association between inadequate parenting and a chronic physical illness. These findings are consistent with a growing literature that links early parental experience to chronic illness.

Objective: To evaluate the reliability of somatosensory evoked potential (SEP) recordings in preterm infants to monitor the intra-uterine and extrauterine maturation of somatosensory pathways., Methods: We performed SEPs in 35 neurologically normal preterm babies (range 23-35 weeks gestational age--GA). Twenty-four of all infants were evaluated after the first 2 weeks of life, at a minimum post-menstrual age (PMA) of 31 weeks, and 31 at term corrected age. In 15 infants we obtained longitudinal recordings at both epochs. Cross-sectional and longitudinal values of first cortical potential (N1) were analyzed in relation of PMA and matched with those measured in a group of 11 fullterm babies., Results: Reproducible cortical SEPs were found in 92% of preterm babies at first recording, and in all 31 neonates at follow-up. A significant inverse correlation between the latency values of N1 and PMA at the time of first recording was observed, showing that latencies of these components rapidly decrease with increasing PMA. Regression analysis showed no significant effect on N1 latency at term correct age in dependence of GA, suggesting that extrauterine life does not affect maturation of somatosensory pathways. Interestingly, the occurrence of idiopathic respiratory distress (RDS) during clinical course after birth correlated with a delayed N1 latency at term corrected age., Conclusions: Extrauterine life does not affect maturation of somatosensory pathways in preterms without neurological deficit. Finally, the mild negative influence of RDS on maturational changes was evident., Significance: SEPs could be considered a useful tool for a non-invasive assessment of somatosensory pathways integrity in preterm infants.

Objective: The increase of elderly population prompted growing research for the understanding of cerebral phenomena sustaining learning abilities, with inclusion of long-term potentiation (LTP)-like plasticity phenomena. Aim of the present study was to characterize LTP-like plasticity dependence on age and gender., Methods: A LTP-like primary motor cortex plasticity inducing a potentiation of the motor evoked potential (MEP) to focal transcranial magnetic stimulation as a consequence of a paired associative stimulation (PAS) was induced in a 50 healthy subject cohort, equally distributed for gender and age groups (25 young subjects, mean age+/-SD=29.8+/-4.5 years; elderly 61.1+/-4.1 years)., Results: Resting motor thresholds' excitability level increased in the elderly group, the basal MEP did not depend on gender or age. The PAS-induced primary motor cortex (M1) plastic excitability modulation was similar in young females and males, while it decreased with age in females only., Conclusions: A reduction of the PAS-induced M1 plasticity in females after menopause was documented, possibly due to an impairment of intracortical excitatory network activity., Significance: A LTP-like plasticity dependence on age was found in female only, suggesting caution in interpreting behavioural studies on learning abilities in dependence on age.

Prolonged environmental noise exposure can induce pathogenic effects on various physical and psychosocial responses. The first aim of this study was to investigate whether long-term occupational noise exposure could affect neurophysiological, neuropsychological and emotional statuses, with particular respect to attention and working memory. The second aim was to evaluate the effects on the tactile P300 of a specific stressor (background traffic noise) vs a non-specific stress inductor (Stroop test). The comparison between a group of noise-exposed workers (traffic police officers), and a control group (office employees) did not show marked differences in cognitive and emotional profiles. The amplitude of the baseline cognitive potential (P300), recorded during a tactile (electric) discrimination task, resulted higher in noise-exposed workers than in controls, and this enhancement was associated with a lower level of trait anxiety and better mood profiles. Moreover, we found a wider P300 amplitude reduction in traffic police officers than in controls, under noisy conditions due to traffic. The effect of the Stroop test as a stress inductor was negligible and similar in the two groups. The wider amplitude of the non-auditory P300 in traffic police officers in the baseline condition could be a sign of cross-modal cerebral plasticity enhancing attentive processes in the 'stress-free' sensory channel. In addition, noise-exposed workers presented a higher cerebral sensitivity to stress selectively when they were exposed to the habitual environmental stressor.

Objective: To characterize the age- and gender- dependence of sensory hand cortical representation in the two hemispheres in healthy population., Methods: In 57 adults, the cerebral activity from rolandic areas as detected by magnetoencephalography was considered both in a resting state (spectral power properties) and in response to the electrical stimulation of the contralateral median nerve (M20 and M30 cortical sources)., Results: We found a dependence of rest and evoked activity on age (alpha rhythm slowing, high frequency power increase, M20 latency increase, M20 strength increase, no change in M30) and on gender (higher alpha frequency, higher beta power, higher spectral entropy, lower M20 amplitude in women). These changes were quite symmetrical in the two hemispheres, making the interhemispheric differences non-dependent on age and gender. Moreover, lower total power and faster alpha rhythm appeared in the dominant hemisphere., Conclusions: Age and gender have a significant effect on spontaneous and evoked activity at the primary sensorimotor cortex., Significance: The results consolidate the reference base in healthy population, to study pathological conditions. Inter-hemispheric asymmetries are confirmed as a sensitive indicator for the early identification of possible neuronal rearrangements due to unilateral brain injuries.

Phosphorus metabolites in the jaundiced rat liver were studied by three-dimensional phosphorus chemical shift imaging (CSI). Animals were studied at 1, 2, and 3 weeks post-ligation of the common bile duct. Quantitation of metabolites was performed using an external standard. Metabolite T(1) values were assessed in CSI experiments on normal untreated animals. High-performance liquid chromatography (HPLC) was used to measure adenine nucleotides in a separate group of jaundiced rats. 3D-CSI did not detect significant changes in NTP in jaundiced animals relative to baseline controls. At two and three weeks post bile duct ligation, pH was significantly elevated. HPLC data comparing ATP levels to baseline controls also detected no change except for elevated ATP detected on Day 21. (31)P NMR chemical shift imaging may be used to assess liver metabolites under conditions of stress such as jaundice. However, absolute quantitation requires careful attention to many factors including point spread function, correct T(1) values, and adequate signal-to-noise ratio.

The public debate about euthanasia and assisted suicide is less pronounced in Italy than in other countries, and data about this topic are lacking. The aim of this study was to investigate primary care physicians' experience in requests for and opinions about euthanasia and/or assisted suicide for terminally ill patients and the relationship between attitudes and professional variables. Three-hundred thirty-six general practitioners completed the Euthanasia Questionnaire to assess attitudes toward euthanasia and/or assisted suicide and the Maslach Burnout Inventory to examine burnout symptoms. The rate of requests for euthanasia or assisted suicide was low (11% and 4.5%, respectively). Only a minority of the physicians endorsed euthanasia and/or assisted suicide. Agreement with the practice of euthanasia/assisted suicide was correlated with non-Catholic religious affiliation, inexperience in treating terminally ill patients, and the burnout dimension of depersonalization. The fact that professional as well as individual factors (e.g., inexperience, non-Catholic affiliation, burnout) were associated with favorable attitudes toward euthanasia and/or assisted suicide underscores the need to examine the problem as a complex phenomenon involving the dyadic patient-doctor relationship.