Guidelines for the use of cell lines in biomedical research

Cell-line misidentification and contamination with microorganisms, such as mycoplasma, together with instability, both genetic and phenotypic, are among the problems that continue to affect cell culture. Many of these problems are avoidable with the necessary foresight, and these Guidelines have been prepared to provide those new to the field and others engaged in teaching and instruction with the information necessary to increase their awareness of the problems and to enable them to deal with them effectively. The Guidelines cover areas such as development, acquisition, authentication, cryopreservation, transfer of cell lines between laboratories, microbial contamination, characterisation, instability and misidentification. Advice is also given on complying with current legal and ethical requirements when deriving cell lines from human and animal tissues, the selection and maintenance of equipment and how to deal with problems that may arise

Variations in the mineral content of bottled 'carbonated or sparkling' water across Europe : a comparison of 126 brands across 10 countries

Kidney stone disease is a common disease with high recurrence rates. Sufficient intake of water is the cornerstone in primary prevention of stone disease. However, the mineral composition of water can affect urinary minerals and influence stone formation. The aim of this study is to assess the variation in the mineral composition of bottled sparkling or carbonated drinking water across Europe. The two largest supermarket chains in each participating country were visited to obtain data on mineral composition regarding bicarbonate, calcium, magnesium, potassium, sodium and sulphates of sparkling or carbonated waters by reading the ingredient labels on the bottles supplied by the manufacturers. Alternatively, the web-shops of these supermarkets were consulted. In total, 126 sparkling water brands across ten European countries were analysed regarding mineral composition. The median concentrations per mineral varied greatly. The greatest variation in median mineral content was found for sodium and sulphates with levels ranging from 3.1 mg/l to 63.0 mg/l and 6.0 mg/l to 263.0 mg/l respectively. A wide distribution of calcium content was found in Switzerland, with calcium levels reaching up to 581.6 mg/l. This study confirms that the mineral composition of sparkling or carbonated water varies greatly across Europe. Patients with kidney stone disease should be aware that the mineral content of water may influence stone formation and be mindful of the great variation that exists between different water brands. Mineral water can be a source of potential promotors or inhibitors of stone formation and patients and urologists need to be mindful of this

Risk profiles and one-year outcomes of patients with newly diagnosed atrial fibrillation in India: Insights from the GARFIELD-AF Registry.

BACKGROUND: The Global Anticoagulant Registry in the FIELD-Atrial Fibrillation (GARFIELD-AF) is an ongoing prospective noninterventional registry, which is providing important information on the baseline characteristics, treatment patterns, and 1-year outcomes in patients with newly diagnosed non-valvular atrial fibrillation (NVAF). This report describes data from Indian patients recruited in this registry. METHODS AND RESULTS: A total of 52,014 patients with newly diagnosed AF were enrolled globally; of these, 1388 patients were recruited from 26 sites within India (2012-2016). In India, the mean age was 65.8 years at diagnosis of NVAF. Hypertension was the most prevalent risk factor for AF, present in 68.5% of patients from India and in 76.3% of patients globally (P < 0.001). Diabetes and coronary artery disease (CAD) were prevalent in 36.2% and 28.1% of patients as compared with global prevalence of 22.2% and 21.6%, respectively (P < 0.001 for both). Antiplatelet therapy was the most common antithrombotic treatment in India. With increasing stroke risk, however, patients were more likely to receive oral anticoagulant therapy [mainly vitamin K antagonist (VKA)], but average international normalized ratio (INR) was lower among Indian patients [median INR value 1.6 (interquartile range {IQR}: 1.3-2.3) versus 2.3 (IQR 1.8-2.8) (P < 0.001)]. Compared with other countries, patients from India had markedly higher rates of all-cause mortality [7.68 per 100 person-years (95% confidence interval 6.32-9.35) vs 4.34 (4.16-4.53), P < 0.0001], while rates of stroke/systemic embolism and major bleeding were lower after 1 year of follow-up. CONCLUSION: Compared to previously published registries from India, the GARFIELD-AF registry describes clinical profiles and outcomes in Indian patients with AF of a different etiology. The registry data show that compared to the rest of the world, Indian AF patients are younger in age and have more diabetes and CAD. Patients with a higher stroke risk are more likely to receive anticoagulation therapy with VKA but are underdosed compared with the global average in the GARFIELD-AF. CLINICAL TRIAL REGISTRATION-URL: http://www.clinicaltrials.gov. Unique identifier: NCT01090362

Negligible birefringence in dual-mode ion-exchanged glass waveguide gratings

Polarization dependence of UV-written Bragg gratings in buried ion-exchanged glass waveguides is investigated. A polarization-dependent shift in Bragg wavelength of less than 0.02 nm is measured, both for the even and the odd modes of a laterally dual-mode waveguide. The measured wavelength shift corresponds to a waveguide birefringence of the order of 10-5, which is negligible for most applications in optical communications. It is observed that the UV-induced birefringence is small, within the limits of the measurement accuracy. The thermal stability of the fabricated gratings is also very good. The results are of particular importance for devices considered here since they require a polarization-independent mo

Outcomes of European Basic Laparoscopic Urological Skills (EBLUS) Examinations: Results from European School of Urology (ESU) and EAU Section of Uro-Technology (ESUT) over 6 Years (2013–2018)

Background: The European School of Urology (ESU) and EAU Section of Uro-Technology (ESUT) started hands-on-training (HOT) sessions in 2007 along with structured European Basic Laparoscopic Urological Skills (EBLUS) examinations in 2013. EBLUS includes an online theoretical course, HOT by expert tutors on a set of dry-lab exercises, and finally a standardised examination for skill assessment and certification. Objective: To analyse the results and predictors of success from the EBLUS examinations that were conducted during the European Urology Residents Education Programme (EUREP) and other international and national dedicated ESU events. Design, setting, and participants: ESU has been delivering EBLUS courses and examinations over the past 6 yr (2013–2018) in more than 40 countries worldwide. Trainees were asked about their laparoscopic background (procedures assisted/performed) and about the availability of HOT or simulator/box trainer in their facility. Apart from the online theoretical course, 4 HOT tasks [(1) peg transfer, (2) pattern cutting, (3) single knot tying, and (4) clip and cut] with its quality assessment of depth perception, bimanual dexterity, and efficiency were a part of the assessment and were considered critical to pass the EBLUS examination. Results and limitations: A total of 875 EBLUS examinations were delivered (EUREP, n = 385; other ESU events, n = 490), with complete data available for 533 (61%) participants among which 295 (55%) passed the examinations. Pass rate increased on a yearly basis from 35% to 70% (p &lt; 0.001) and was similar between EUREP (56%) and other ESU/ESUT events (55%). The significant predictors of success were passing tasks 1 [odds ratio (OR): 869.9, 95% confidence interval (CI): 89.6–8449.0, p &lt; 0.001] and 2 (OR: 3045.0, 95% CI: 99.2–93 516.2, p &lt; 0.001) of the examinations. A limitation of EBLUS was its inability to provide more advanced training such as wet-lab or cadaveric training. Conclusions: Over the past few years more trainees have passed the European Basic Laparoscopic Urological Skills (EBLUS) examinations. Trainees who spend more time on laparoscopic procedures demonstrated a better performance and pass rate. We found almost no difference between the EBLUS results collected from EUREP and other ESU/ESUT events, which confirms the robustness of the training and examinations conducted worldwide. Patient summary: Training in laparoscopy helps trainees pass the European Basic Laparoscopic Urological Skills (EBLUS) examinations, reflected by an increase in the pass rate over the past 6 yr. Our results also confirm the robustness of EBLUS training and examinations worldwide. This paper highlights the robustness of European Basic Laparoscopic Urological Skills (EBLUS) which is now adopted for laparoscopic urology training throughout the world. It shows a growing popularity and preparedness of trainees in laparoscopy, with better examination results for trainees with more exposure to laparoscopy. © 201