Ozonized biochar filtrate effects on the growth of Pseudomonas putida and cyanobacteria Synechococcus elongatus PCC 7942.

Background: Biochar ozonization was previously shown to dramatically increase its cation exchange capacity, thus improving its nutrient retention capacity. The potential soil application of ozonized biochar warrants the need for a toxicity study that investigates its effects on microorganisms.

Results: In the study presented here, we found that the filtrates collected from ozonized pine 400 biochar and ozonized rogue biochar did not have any inhibitory effects on the soil environmental bacteria Pseudomonas putida, even at high dissolved organic carbon (DOC) concentrations of 300 ppm.

The Impact of Surgery on the Survival of Patients with Recurrent Glioblastoma.

Objective: The purpose of this study was to investigate the possible benefit of repeat surgery on overall survival for patients with recurrent glioblastoma multiforme (GBM).

Methods: We performed a retrospective analysis of data from patients who presented with recurrent GBM over a 5-year period ( = 157), comparing baseline characteristics and survival for patients who had at least 1 new tumor resection followed by chemotherapy (reoperation group, = 59) and those who received medical treatment only (no-reoperation group, = 98) for recurrence.

Results: The baseline characteristics of the two groups differed in terms of WHO performance status (better in the reoperation group), mean age (60 years in the reoperation group vs.

Outcome of glioblastoma resection in patients 80 years of age and older.

Objective: To evaluate the role and possible complications of tumor resection in the management of glioblastoma (GBM) in a series of patients 80 years of age and older with review of literature.

Methods: The authors retrospectively analyzed cases involving patients 80 years or older who underwent biopsy or initial resection of GBM at their hospital between 2007 and 2018. A total of 117 patients (mean age 82 years) met the inclusion criteria; 57 had resection (group A) and 60 had biopsy (group B).

Survivability of Wild-Type and Genetically Engineered BP1 with Different Temperature Conditions.

Introduction: BP1 is a thermophilic strain of cyanobacteria that has an optimum growth at 57°C, and according to previous analysis by Yamaoka et al, BP1 cannot survive at a temperature below 30°C. This suggests that the thermophilic property of this strain may be used as a natural biosafety feature to limit the spread of genetically engineered (GE) organisms in the environment if physical containment fails.

Objective: To further explore the growth and survivability range of BP1, we report a growth and survivability assay of wild-type and GE BP1 strains under different conditions.

Fertility after Endoscopic Surgery for Ectopic Pregnancy Management in Point "G" Teaching Hospital, Bamako-Mali.

Endoscopic surgery of ectopic pregnancy is actually the gold standard for the management of fallopian tubal diseases. A survey was conducted to evaluate fertility in patients who underwent endoscopic management for ectopic pregnancy. A retrospective study was conducted at the department of general and endoscopic surgery of the Point "G" teaching hospital, in Bamako, Mali, from January 1st 2007 to December 31, 2016.

Multicenter study of 37 pediatric patients with SCIWORA or other spinal cord injury without associated bone lesion.

Background: Pure traumatic spinal cord injury (without associated bone lesion) are encountered in pediatric accidentology, the most typical being spinal cord injury without radiological abnormality (SCIWORA). The present study reports a multicenter series of under-18-year-olds admitted for traumatic medullary lesion. The objectives were: (1) to describe the causes of pure spinal cord injuries in children in France and their clinical presentation; (2) to identify any prognostic factors; and (3) to describe their medical management in France.

Electrostimulation mapping of comprehension of auditory and visual words.

In order to spare functional areas during the removal of brain tumours, electrical stimulation mapping was used in 90 patients (77 in the left hemisphere and 13 in the right; 2754 cortical sites tested). Language functions were studied with a special focus on comprehension of auditory and visual words and the semantic system. In addition to naming, patients were asked to perform pointing tasks from auditory and visual stimuli (using sets of 4 different images controlled for familiarity), and also auditory object (sound recognition) and Token test tasks.

Third Ventriculocisternostomy for Shunt Failure.

Background: Our objective was to analyze the relevance, potential prognostic factors, and complications of endoscopic third ventriculostomy (ETV) in patients with shunt failures.

Methods: Among 721 ETVs performed between 1999 and 2013, we studied 53 patients with shunts (31 men, 21 less than 18 years of age) who had an ETV performed for shunt failures as the result of various causes. We included all initial causes of hydrocephalus except adult chronic (i.

Responses of heart rate variability to acute pain after minor spinal surgery: optimal thresholds and correlation with the numeric rating scale.

Background: The autonomic nervous system is influenced by many stimuli including pain. Heart rate variability (HRV) is an indirect marker of the autonomic nervous system. Because of paucity of data, this study sought to determine the optimal thresholds of HRV above which the patients are in pain after minor spinal surgery (MSS).

Awake craniotomy vs surgery under general anesthesia for resection of supratentorial lesions.

Background: The use of an awake craniotomy in the treatment of supratentorial lesions is a challenge for both patients and staff in the operation theater.

Object: To assess the safety and effectiveness of an awake craniotomy with brain mapping in comparison with a craniotomy performed under general anesthesia.

Methods: We prospectively compared 2 groups of patients who underwent surgery for supratentorial lesions: those in whom an awake craniotomy with intraoperative brain mapping was used (AC group, n = 214) and those in whom surgery was performed under general anesthesia (GA group, n = 361, including 72 patients with lesions in eloquent areas).

Endoscopic third ventriculostomy: outcome analysis in 368 procedures.

Object: Although endoscopic third ventriculostomy (ETV) has been accepted as a procedure of choice for the treatment of obstructive hydrocephalus, the outcome of this treatment remains controversial with regard to age, cause, and long-term follow-up results. The goal of this study was to assess the risk of failure associated with these factors in a retrospective cohort study.

Methods: Between 1999 and 2007, 368 ETVs were performed in 350 patients (165 patients < 18 years of age) with hydrocephalus at the University Hospital of Toulouse.

Spinal meningioma surgery in elderly patients with paraplegia or severe paraparesis: a multicenter study.

Objective: In a multicenter study, 102 patients aged 70 years or older with paraplegia or severe paraparesis, and who underwent operation for spinal meningiomas, are presented to correlate surgery and outcome and to determine the most influential factors that affected this outcome.

Methods: Five French neurosurgical centers participated in this retrospective study between 1990 and 2007. Pre- and postoperative neurological status were assessed using a grading system.

Cortical calculation localization using electrostimulation.

Object: A naming task has been used to spare cortical areas involved in language. In the present study, a calculation task was combined with electrostimulation mapping (awake surgery) to spare cortical areas involved in calculation in patients undergoing surgery for brain lesions. The organization of language and calculation areas was analyzed in relation to these surgical data.

Intracranial meningioma surgery in the ninth decade of life.

Objective: The aims of this study are to assess the surgical outcome of elderly patients aged 80 years or more, to analyze the factors influencing postoperative course, and to propose a grading system to standardize the surgical indication of intracranial meningioma in the elderly.

Methods: Between 1990 and 2005, we surgically treated 74 consecutive patients aged 80 years or more for intracranial meningiomas (47 women, 27 men; mean age, 82 yr; age range, 80-90 yr). The median follow-up period was 94 months (range, 15-147 mo).

Triple total cervical vertebrectomy for a giant cell tumor: case report.

Study Design: Case report of a triple total cervical vertebrectomy.

Objective: To describe a new management for cervical tumor. Preoperative planning using arteriography, successive occlusion of both vertebral arteries, and the cervical vertebrectomy are reported.

Writing, calculating, and finger recognition in the region of the angular gyrus: a cortical stimulation study of Gerstmann syndrome.

Object: In an attempt to gain a better understanding of the cerebral functions represented in the angular gyrus and to spare them during surgery, the authors studied patients with brain tumors located close to the angular gyrus and mapped cortical sites by using electrostimulation.

Methods: Before undergoing tumor removal, six right-handed patients (five with left and one with right hemisphere tumors) were studied using cortical mapping with the aid of calculating, writing, finger-recognition, and color-naming tasks in addition to standard reading and object-naming tasks (for a total of 36 brain mapping studies). Strict conditions of functional site validation were applied to include only those cortical sites that produced repetitive interferences in the function tested.