Recently Published Articles
Evidence that N-acetylaspartylglutamate is the Astrocyte-Targeted Neurovascular Coupling Agent that Regulates Slow Tonic Control of Brain Blood Flow
Abstract:
N-acetylaspartylglutamate (NAAG) is the highest concentration dipeptide present in brain. It is found primarily in neurons but its function is unclear. NAAG is synthesized by neurons from N-acetylaspartate and glutamate (Glu), maintained at mM concentrations and is released non-synaptically to extracellular fluid (ECF). NAAG is a non-excitatory form of Glu, and is targeted to the metabotropic group II Glu receptor 3 (mGluR3) on the surface of astrocytes. After docking with the receptor, Glu is released by the action of NAAG peptidase. Previously, it was shown for the first time that an NAAG-peptidase inhibitor reduced global cerebral blood flow (CBF) in mouse brain but did not affect their physical performance. Recently, it has been demonstrated that there are two separate systems involved in neurovascular coupling by astrocytes, one is a rapid focal phasic response providing energy for stimulation-induced neuronal activity, and the other a slower global tonic res...
Application of a Cardiac Septal Occluder in a Patient Affected by Enteroatmospheric Fistula
Abstract:
Enteroatmospheric fistula is a challenging and emerging clinical situation, mainly related to “open abdomen” technique in damage control surgery for trauma and in case of multiple laparotomies. We report the case of a 61-year-old male patient, affected by rectal carcinoma, submitted to standard surgical treatment and gradually evolving in persistent proximal jejunal fistula. The positioning of a cardiac septal occluder (Amplatzer®) was associated with immediate and late favourable effects. The procedure was conducted “bed-side” and turned out to be easy and safe.
Obesity in Schizophrenia
Abstract:
Over the last three decades, an epidemic of obesity has markedly affected patients suffering from mental illnesses such as schizophrenia. Antipsychotic medications used to treat schizophrenia are considered as major culprits. The aim of this review is to first consider risk factors, to then outline negative sequelae of obesity for this population, and finally to address timing and content of recommended clinical interventions. Medical databases were searched with the terms “”weight,” “obesity,” and “schizophrenia.” Selection of articles was guided by date of publication; recent papers are preferentially cited. The main findings were that, in addition to antipsychotic medications, socio-economics, lifestyle, immune factors, and circadian rhythms also contribute to obesity risk. A barrier to effective health promotion within psychiatry has been the concern that fears about gaining weight might stop individuals with schizophrenia from taking needed anti...
Pulmonary Hypertension in an Elderly HIV-infected Veteran Population
Abstract:
Pulmonary hypertension may occur as a co-morbid disease in HIV. We examined the characteristics of our HIV infected veterans with pulmonary hypertension and compared them with a control group of HIV infected patients without pulmonary hypertension. Among our cohort, patients were diagnosed with pulmonary hypertension at a mean age of 49.8 y ± 11.0y. This diagnosis came about 8.1y ± 6.7y after the diagnosis of HIV. Our pulmonary hypertension patients lived for about 3.4 ± 3.0y after their pulmonary hypertension diagnosis. The presence of pulmonary hypertension in HIV infection confers an increased risk of mortality. Mortality in our pulmonary hypertension cohort was 73%.
Allergic Angioedema and Urticaria After Ingestion of Organic Tea
Abstract:
Allergic angioedema of the airways is a potentially life-threatening condition. The allergen can be difficult to identify. Treatment in the acute phase comprises of antihistamines, steroids, adrenaline and in severe cases prophylactic intubation. Allergic angioedema can be encountered in all medical specialties including odontology. It can develop fast and emergency treatment is lifesaving. Knowledge of symptoms and emergency treatment is important. We present a case of a 33-year-old female physician who in a matter of hours developed first an atypical urticarial eruption followed by angioedema of the upper airways. She was treated with antihistamines, as she refused other treatments due to lactation. The patient also refused further investigations, however she has not had any further episodes after discontinuing the ingestion of organic tea. Allergic reactions are unpredictable and have a large variety of triggers. The most likely tr...
Preparation and Application for Separation of Small Molecules of a New Poly(OVS-co-EDMA) Hybrid Monolithic Column
Abstract:
A hybrid monolithic column was prepared using octavinyloctasilasesquioxane (OVS) as a monomer, benzoyl peroxide/dimethylacetamide (BPO/DMA) as initiator, ethylene glycol dimethacrylate (EDMA) as cross-linker, 1-dodecanol as porogenic agent and dimethylbenzene as cosolvent. A tidy skeleton, much bigger specific surface area (22.4 m
Parental Report of Gender Differences in Sexual Functioning among Adolescents with Down Syndrome: A Jordanian Experience
Abstract:
Recently, there has been an increased interest in sexuality among teenagers with Down syndrome (DS). Although DS has been well studied in the western continents, its research is relatively scarce in the Arab region. This is a cross -sectional study to explore the demographic characteristics and the sexual profile among 23 adolescents with DS who attended the outpatient psychiatric clinic of a tertiary care hospital in Amman, Jordan. A semi-structured interview conducted with the parents of individuals with DS was used to record the socio-demographic profile, self-care skills, socio-sexual skills and sexual behavior. Sonographic B-lines, also known as lung comets, have been shown to correlate with the presence of extravascular lung water. The aim of this study is to assess if chest ultrasound could detect lung water imbibition and its variations induced by dialysis, an experimental model of controlled rapid fluid loss. A cross-sectional study was conducted in a hemodialysis center in the city of Fez. Lung ultrasounds, impedance measurement, and ultrasound of the inferior vena cava were achieved 30-60 minutes before and after the hemodialysis session. The values, measured by the different techniques used, decrease significantly after hemodialysis (p <0.001). The values studied before and after the hemodi...
Compound Heterozygous Hemoglobin SD Disease Presenting as Sickle Cell Crisis in Pregnancy
Abstract:
A case report of compound heterozygous hemoglobin SD disease presenting as sickle crisis during pregnancy. The discussion covers transfusion, pain control, and peripartum care.