Explaining the Non-significant Changes in Ice-off Date over Six Decades at Lake of Bays and Lake Nipissing, South-Central Ontario

The phenomenon of non-significant trends in ice-off date under a warming climate was quantitatively explained by three efforts: exploring possible driving factors where possible and defining new factors to represent snow conditions, identifying the contributing factors through correlation and trend tests, and evaluating relative contributions through partial Mann-Kendall method. Why the ice-off became only slightly earlier over 62 years at Lake of Bays has been satisfactorily assessed: the increased winter temperature, increased total rain and decreased days of snow on ground acted as three promoting drivers to earlier ice-off date, but their promoting functions were effectively offset by adverse changes in four other factors (snowfall slope, precipitation slope, snowpack slope, and last day of snow). The ice-off date at Lake Nipissing did not have a significant trend over 58 years, although there were five factors contributing to the ice-off decline without sufficient offsetting, suggesting that the ice-off of this lake may not be sensitive, or basically elastic, to the climatic variation stressor. Relative contributions of drivers as calculated helped explain how much they contributed to ice-off trends or how much they offset the influences.

Características de los profesionales kinesiólogos y carga laboral: encuesta transversal de las Unidades de Cuidados Intensivos adulto en Chile / Characteristics of physiotherapy staffing levels and caseload: a cross-sectional survey of Chilean adult Intensive Care Units

INTRODUCCIÓN: La Sociedad Europea de Medicina de Cuidados Intensivos recomienda la presencia de un Kinesiólogo con formación especializada, disponible cada cinco camas de alta complejidad, los 7 días de la semana en la Unidad de Cuidados Intensivos (UCI). En Chile se desconoce la adherencia de las UCI adulto a esta recomendación. OBJETIVO: Describir las características administrativas y de cobertura kinésica en las UCI adulto chilenas, y de acuerdo con la adherencia a las recomendaciones internacionales, informar a los tomadores de decisión en salud. MÉTODOS: Estudio observacional transversal, basado en encuesta telefónica. Se incluyeron las UCI adultos de establecimientos de mayor complejidad, clínicas privadas y centros asociados a universidades (n = 74). La proporción de instituciones con disponibilidad de kinesiólogos las 24 horas del día, los siete días de la semana (kinesiólogo 24/7), con un número máximo de cinco pacientes por kinesiólogo y presencia de un kinesiólogo especialista fueron reportados. RESULTADOS: La tasa de respuesta fue del 86,5% (n = 64), principalmente públicas (59%) y de nivel III (83%). El 70% (n = 45) de las UCI adulto chilenas cuentan con kinesiólogo 24/7; correspondiendo el 87% al sector público y el 46% al privado. El 41% de los centros posee un máximo de 5 pacientes por kinesiólogo en día hábil diurno, disminuyendo en fines de semana y horarios nocturnos. Un 23% de las UCIs cuenta con kinesiólogo especialista en intensivo, siendo mayor en el sector privado (31%). CONCLUSIONES: En UCI adulto chilenas, la disponibilidad de kinesiólogos 24/7 es alta, y la prevalencia de especialistas es baja. Estrategias de creación de programas de formación de especialidad podrían contribuir a disminuir la brecha de especialistas.

INTRODUCTION: The European Society of Intensive Care Medicine recommends the presence of a specialist physiotherapist, available every five beds, seven days a week in the high complexity Intensive Care Unit. However, in Chile the adherence of adult Intensive Care Units to this recommendation is unknown. OBJECTIVE: To describe the organizational characteristics and the physiotherapist availability in adult Intensive Care Units in Chile, and according to the adherence to international recommendations, inform health decision-makers. METHODS: Observational study based on a telephone survey. All adult Intensive Care Units institutions of high complexity, private hospitals and teaching health centers in Chile were eligible (n = 74). The primary outcome measures were the proportion of institutions with physiotherapist availability 24 hours a day and seven days a week (24/7 physiotherapist), a maximum caseload per physiotherapist of five patients and the presence of a specialist physiotherapist. RESULTS: Response rate was 86.5%, with 59% of responding units being public and 83% offering level III care. 70% of the adult Intensive Care Units in Chile have 24/7 physiotherapist (87% of the public and 46% of the private sector). 41% of the centers had a maximum caseload per physiotherapist of five patients during the day on weekdays. This number decreased on weekends and during night shifts. 23% of the Intensive Care Units had a specialist physiotherapist, being more common in the private sector (31%). CONCLUSIONS: In Chilean adult ICU, 24/7 physiotherapist availability is high, the prevalence of physiotherapists with specialist training is low. Future efforts should focus on promoting the uptake of specialist training.

Treatment of a subdural empyema complicated by intracerebral abscess due to Brucella infection

A 55-year-old male presented with fever, stupor, aphasia, and left hemiparesis. A history of head trauma 3 months before was also reported. Cranial magnetic resonance imaging revealed slight contrast enhancement of lesions under the right frontal skull plate and right frontal lobe. Because of deterioration in nutritional status and intracranial hypertension, the patient was prepared for burr hole surgery. A subdural empyema (SDE) recurred after simple drainage. After detection of Brucella species in SDE, craniotomy combined with antibiotic treatment was undertaken. The patient received antibiotic therapy for 6 months (two doses of 2 g ceftriaxone, two doses of 100 mg doxycycline, and 700 mg rifapentine for 6 months) that resulted in complete cure of the infection. Thus, it was speculated that the preexisting subdural hematoma was formed after head trauma, which was followed by a hematogenous infection caused by Brucella species.

Puerarin protects against damage to spatial learning and memory ability in mice with chronic alcohol poisoning

We evaluated the effect of puerarin on spatial learning and memory ability of mice with chronic alcohol poisoning. A total of 30 male C57BL/6 mice were randomly divided into model, puerarin, and control groups (n=10 each). The model group received 60% (v/v) ethanol by intragastric administration followed by intraperitoneal injection of normal saline 30 min later. The puerarin group received intragastric 60% ethanol followed by intraperitoneal puerarin 30 min later, and the control group received intragastric saline followed by intraperitoneal saline. Six weeks after treatment, the Morris water maze and Tru Scan behavioral tests and immunofluorescence staining of cerebral cortex and hippocampal neurons (by Neu-N) and microglia (by Ib1) were conducted. Glutamic acid (Glu) and gamma amino butyric acid (GABA) in the cortex and hippocampus were assayed by high-performance liquid chromatography (HPLC), and tumor necrosis factor (TNF)-α and interleukin (IL)-1β were determined by ELISA. Compared with mice in the control group, escape latency and distance were prolonged, and spontaneous movement distance was shortened (P<0.05) by puerarin. The number of microglia was increased in both the cortex and hippocampal dentate gyrus (P<0.01), and neurons were reduced only in the hippocampal dentate gyrus (P<0.01) in puerarin-treated mice. In the model group, Glu and GABA levels decreased (P<0.05), and Glu/GABA, TNF-α, and IL-1β increased (P<0.01) with puerarin treatment, returning to near normal levels. In conclusion, puerarin protected against the effects of chronic alcohol poisoning on spatial learning and memory ability primarily because of anti-inflammatory activity and regulation of the balance of Glu and GABA.

Endostar combined with chemotherapy compared with chemotherapy alone in the treatment of nonsmall lung carcinoma: A meta-analysis based on Chinese patients.

INTRODUCTION: Lung cancer is the leading cause of cancer‑associated death world‑wide. And the lung cancer is generally divided into small cell lung carcinoma and non-small cell lung cancer. For advanced NSCLC, the chemotherapy and target therapy were the important treatment modality. This meta‑analysis was to evaluate the clinical efficacy and toxicity between endostar combined chemotherapy and chemotherapy alone in Chinese patients. MATERIALS AND METHODS: We searched the PubMed, EMBASE, and CNKI databases to find the potential relevant articles reporting the endostar combined with chemotherapy regimen in the treatment of nonsmall cell lung cancer in Chinese patients. The tumor response and toxicity difference between the two groups were demonstrated by odds ratio (OR) and its 95% confidence interval (95% CI). All the data was pooled by Stata 11.0 (http://www.stata.com; Stata Corporation, College Station, TX) software. RESULTS: We included 14 studies published in Chinese or English studies. The pooled results showed adding endostar in the chemotherapy regimen can significant increase the objective response rate (OR = 2.42, 95% CI = 1.87–3.12, P = 0.00) and disease control rate (OR = 2.22, 95% CI = 1.68–2.94, P = 0.00). For toxicities, the pooled data showed no statistical difference for grade III‑IV granulocytopenia risk (OR = 1.04, 95% CI = 0.74–1.44, P = 0.83). Nausea and vomiting (OR = 0.93 95% CI: 0.51–1.52, P = 0.78) and grade III‑IV alopecia (OR = 0.99, 95% CI: 0.76–1.29, P = 0.95). The funnel plot showed no statistical publications. CONCLUSION: Combined treatment with endostar can improve the response rate for NSCLC patients without increasing the risk of developing severe adverse event.