Hericium Erinaceus Prevents DEHP-Induced Mitochondrial Dysfunction and Apoptosis in PC12 Cells.

Hericium Erinaceus (HE) is a medicinal plant known to possess anticarcinogenic, antibiotic, and antioxidant activities. It has been shown to have a protective effect against ischemia-injury-induced neuronal cell death in rats. As an extending study, here we examined in pheochromocytoma 12 (PC12) cells, whether HE could exert a protective effect against oxidative stress and apoptosis induced by di(2-ethylhexyl)phthalate (DEHP), a plasticizer known to cause neurotoxicity. We demonstrated that pretreatment with HE significantly attenuated DEHP induced cell death. This protective effect may be attributed to its ability to reduce intracellular reactive oxygen species levels, preserving the activity of respiratory complexes and stabilizing the mitochondrial membrane potential. Additionally, HE pretreatment significantly modulated Nrf2 and Nrf2-dependent vitagenes expression, preventing the increase of pro-apoptotic and the decrease of anti-apoptotic markers. Collectively, our data provide evidence of new preventive nutritional strategy using HE against DEHP-induced apoptosis in PC12 cells.

Acute Post-Tracheostomy Clinical Decompensations in Infants-Are There Predictive Markers?

OBJECTIVE: To report on the population of infants receiving a tracheostomy, identify acute post-tracheostomy clinical decompensations, and seek predictive markers associated with acute complications following the placement of a tracheostomy. STUDY DESIGN: Retrospective deidentified clinical data was provided by the Infant Pulmonary Data Repository at Children's Mercy Hospital, Kansas City. Data from infants undergoing tracheostomy from January 1, 2008 through September 30, 2016 were divided into one of two study groups based on clinical correlations: (1) no acute decompensations within 72 hours post-tracheostomy or (2) acute clinical decompensation defined as sustained escalation of respiratory care within the 72 hours following tracheostomy. RESULTS: Thirty-four percent of infants undergoing tracheostomy during this period developed acute post-tracheostomy clinical decompensations. Elevated pre-tracheostomy positive end expiratory pressure, mean airway pressure, and echocardiogram findings suggestive of pulmonary hypertension (PH) or ventricular dysfunction were associated with acute post-tracheostomy clinical decompensations. Additionally acute post-tracheostomy clinical decompensation was associated with higher rate of death prior to discharge. CONCLUSION: Infants requiring higher respiratory support and infants with PH or ventricular dysfunction are at risk of acute post-tracheostomy clinical decompensation, thus identifying these patients may lead to better pre-tracheostomy counseling and potentially targeted treatments to decrease this risk.

A multidisciplinary therapeutic approach for reducing the risk of psychiatric side effects in patients with chronic hepatitis C treated with pegylated interferon α and ribavirin.

GOALS: To evaluate the effectiveness of psychiatric counseling in reducing the rate of development of psychiatric side effects of antiviral therapy with interferon-α and ribavirin among study participants compared with standard clinical monitoring alone. BACKGROUND: Interferon-α is used to treat chronic hepatitis C. Interferons may induce adverse events that usually, but not always, reverse within a few days after the end of therapy. STUDY: Two hundred eleven patients with chronic hepatitis C, genotype 1b were treated with peginterferon and ribavirin for 48 weeks in a prospective trial. Two groups were randomly created. Group A was interviewed by a team of gastroenterologists, psychiatrists, and psychologists and treated with psychotherapy once a month. Group B was monitored once a month according to a conventional protocol that did not include psychotherapy. SVR (sustained viral response), severe psychiatric symptom onset, and mood progression were assessed (P calculated using Fisher exact test, Friedman test, Dunn posttest, and Mann-Whitney U-test). RESULTS: At baseline, there was no difference in depressive symptoms or liver histologic score between the 2 groups. The onset rate of severe psychiatric manifestations was 4.7% (Group A) and 16.1% (Group B) between the 24th and 36th weeks (P<0.01). Fifteen participants in Group A and 39 in Group B required antidepressants and benzodiazepines (P<0.05). CONCLUSIONS: Patients can develop depressive symptoms during interferon therapy. Multidisciplinary medical treatment with psychiatric counseling provided during the treatment of chronic hepatitis C may contribute to the decrease or prevent the higher rates of depression associated with interferon treatment.

An in vitro model of a system of electrical potential compensation in extracorporeal circulation.

OBJECTIVES: Extracorporeal circulation (ECC) in patients undergoing cardiac surgery induces systemic immune-inflammatory reaction that results in increased postoperative morbidity. Many factors are responsible for the adverse response after ECC. The present in vitro study aimed to investigate electric charges (ECs) generated during ECC, to set a device compensating the ECs, and checking its effect on red blood cells (RBC). MATERIALS AND METHODS: The electrical signals of blood in ECC were collected by a custom developed low-noise electronic circuit, processed by a digital oscilloscope (DSO) and a dynamic signal analyzer (DSA). The compensation of ECs was performed using a compensation device, injecting a nulling charge into the blood circuit. The compensation effect of the ECs on RBCs was evaluated by scanning electron microscope (SEM). RESULTS: The electrical analysis performed using both the DSO and the DSA confirmed the EC formation during ECC. The notable electric signals recorded in standard ECC circuits substantially nulled once the compensation device was used, thus confirming efficient EC compensation. After two hours of ECC, the SEM non-blended test on human RBC samples highlighted morphological changes in acanthocytes of the normal biconcave-shaped RBC. CONCLUSIONS: The outcomes confirm the development of parasitic ECs during ECC and that a suppressor system may decrease the potential damage of ECs. Nevertheless, further studies are ongoing in order to investigate the complex mechanisms related to lymphocytes and platelet morphological and physiological chances during triboelectric charges in ECC.

Obsessive compulsive personality disorder and Parkinson's disease.

OBJECTIVES: To evaluate the frequency of personality disorders in Parkinson's disease (PD) patients and in a group of healthy controls. METHODS: Patients affected by PD diagnosed according to the United Kingdom Parkinson's disease Society Brain Bank diagnostic criteria and a group of healthy controls were enrolled in the study. PD patients with cognitive impairment were excluded from the study. Structured Clinical Interview for Personality Disorders-II (SCID-II) has been performed to evaluate the presence of personality disorders. Presence of personality disorders, diagnosed according to the DSM-IV, was confirmed by a psychiatric interview. Clinical and pharmacological data were also recorded using a standardized questionnaire. RESULTS: 100 PD patients (57 men; mean age 59.0 ± 10.2 years) and 100 healthy subjects (52 men; mean age 58.1 ± 11.4 years) were enrolled in the study. The most common personality disorder was the obsessive-compulsive personality disorder diagnosed in 40 PD patients and in 10 controls subjects (p-value<0.0001) followed by the depressive personality disorder recorded in 14 PD patients and 4 control subjects (p-value 0.02). Obsessive-compulsive personality disorder was also found in 8 out of 16 de novo PD patients with a short disease duration. CONCLUSION: PD patients presented a high frequency of obsessive-compulsive personality disorder that does not seem to be related with both disease duration and dopaminergic therapy.

A new extracorporeal vacuum-assisted device to optimize cardiopulmonary bypass. Comparison with the conventional system.

Miniaturized cardiopulmonary bypass (CPB) systems, though more biocompatible, are limited by not being adaptable to all cardiac surgical operations. We evaluate a versatile CPB system [extracorporeal vacuum-assisted device optimized (EVADO)] based on the elimination of roller pumps, separation of extracavitary suctioned blood and state-of-the-art technology for oxygenator systems and digital control. We randomized 165 patients to either EVADO or conventional CPB (cCPB). Surgery could be completed in all cases without conversion to cCPB. The use of EVADO significantly reduced the intraoperative haemolysis (lesser increase in free hemoglobin, P<0.001 vs. control, and lesser decrease in haptoglobin levels, P=0.001 vs. control). Among patients who were submitted to EVADO, postoperative bleeding (P=0.004), transfusions (P=0.046), rate of revision for bleeding (P=0.03), rate of postoperative atrial fibrillation (P=0.007), time to extubation (P=0.02) and ICU stay (P=0.04) were reduced. The clinical benefits associated with the EVADO may be due to better end-organ perfusion, lesser impairment of the coagulation and inflammatory reaction.