Development and validation of an HPTLC densitometric method for assay of griseofulvin in tablets

A new HPTLC densitometric method for the assay of griseofulvin tablets was developed and validated according to ICH guidelines and USP specifications. The method was developed using a mobile phase prepared with an environmentally friendly solvent system, diethyl ether: toluene (4:1) on pre-coated TLC silica gel 60F254 glass plates with a saturation time of 25 min. Development time of 10 min was required for a migration distance of 70 mm. The best detection wavelength was 299 nm. The Rf value was 0.22 and there were no interferences from the excipients or solvents. With regard to repeatability and intermediate precision, the RSD values were 1.43 and 1.58, respectively. Linearity testing gave the polynomial R2 values, calculated on three consecutive days, of 0.9910, 0.9801 and 0.9840, respectively. The accuracy values tested at 80 %, 100 % and 120 % concentrations were between 98.11-102.66 %. The developed HPTLC densitometric method for the assay of griseofulvin tablets is simple, selective, accurate, reproducible, high throughput, cost-effective and environmentally friendly.Keywords: High Performance Thin Layer Chromatography (HPTLC), griseofulvin, densitometry, validatio

Health-related quality of life of Adolescent and Young Adult Cancer Survivors before and during the COVID-19 pandemic::Longitudinal improvements on social functioning and fatigue

The health-related quality of life (HRQoL) among long-term Adolescent and Young Adult Cancer Survivors (AYACS) and an age- and sex-matched normative population was examined. Although the HRQoL of AYACS was worse compared to the normative population before and during the COVID-19 pandemic, the scores of AYACS improved over time in contrast to the normative population. Presumably, AYACS are used to adjusting their lives to stressful life events. Furthermore, the lockdown may have been beneficial for AYACS who face difficulties fully participating in society due to the impact of cancer. AYACS who encounter HRQoL issues could benefit from support interventions to empower them and build resilience

Differences in Internet use and eHealth needs of adolescent and young adult versus older cancer patients:Results from the PROFILES registry

SIMPLE SUMMARY: The internet has become an important health information source for patients with cancer. AYAs (adolescents and young adults; 18–39 years at time of diagnosis) can be considered as digital natives; they work with the internet and related technologies in their daily lives. It is likely that AYAs are more used to using the internet, while older cancer patients might prefer former ways of information provision to obtain health-related information. The question arises whether internet use and eHealth needs of AYA cancer patients are comparable to those of older ones. By conducting a cross-sectional survey, we evaluated differences in cancer-related internet patterns between AYAs and older cancer patients (40+ years at time of diagnosis). A better understanding of differences between generations will help inform healthcare providers on how to guide cancer patients of different ages regarding cancer-related internet use. ABSTRACT: Background: Our aim was to evaluate differences in cancer-related internet patterns between AYAs (adolescents and young adults; 18–39 years at time of diagnosis) and older adult cancer patients (40+ years). Methods: Cross-sectional surveys were distributed among AYA and older adult cancer patients regarding cancer-related internet use and eHealth needs. Results: 299 AYAs (mean age 31.8 years) and 270 older adults (mean age 55.8 years) participated. AYAs searched significantly more often on the internet on a daily basis just before diagnosis (45% vs. 37%), right after diagnosis (71% vs. 62%) and during treatment (65% vs. 59%) compared to older adults. During follow up, there was a trend that AYAs searched less often on the internet compared to older adults (15% vs. 17%). AYAs searched more often on topics, such as alternative or complementary therapies, treatment guidelines, fertility, end of life, sexuality and intimacy, lifestyle and insurance. AYAs felt significantly better informed (75%) after searching for cancer-related information compared to older adults (65%) and had significantly less unmet needs regarding access to their own medical information (22% vs. 47%). AYAs search more on the internet on a daily basis/several times per week in the diagnosis and treatment phase than older cancer patients. They search on different topics than older adults and seems to have less unmet eHealth needs.It is important that these are easy to find and reliable

The Effects of Ash and Black Carbon (Biochar) on Germination of Different Tree Species

Forest fires generate large amounts of ash and biochar, or black carbon (BC), that cover the soil surface, interacting with the soil’s constituents and its seedbank. This study concerns reproductive ecology assessments supported by molecular characterisation to improve our understanding of the effects of fire and fire residues on the germination behaviour of 12 arboreal species with a wide geographic distribution. For this purpose, we analysed the effects of three ash and one BC concentration on the germination of Acacia dealbata Link, A. longifolia (Andrews) Willd., A. mearnsii De Wild., A. melanoxylon R. Br., Pinus nigra Arnold, P. pinaster Aiton, P. radiata D. Don, P. sylvestris L., Quercus ilex L., Q. pyrenaica Willd., Q. robur L., and Q. rubra L. Each tree species was exposed to ash and BC created from its foliage or twigs (except for Q. rubra, which was exposed to ash and BC of Ulex europaeus L.). We monitored germination percentage, the T50 parameter, and tracked the development of germination over time (up to 1 yr). The BC of A. dealbata, P. pinaster, and Q. robur was analysed by pyrolysis-gas chromatography-mass spectrometry (PY-GC-MS) to assess the molecular composition. In six species, ash inhibited the germination, while in another five species, germination was not affected by ash or by BC. In Q. rubra, ash and BC stimulated its germination. This stimulating effect of the BC on Q. rubra is likely to be related to the chemical composition of the ash and BC obtained from Ulex feedstock. The BC of U. europaeus has a very different molecular composition than the other BC samples analysed, which, together with other factors, probably allowed for its germination stimulating effects.This study was carried out within the Project 10MDS200007PR, financed by the Xunta de Galicia; the Project AGL2013-48189-C2-2-R, financed by the Ministerio de Economía y Competitividad, Spain; and FEDERS

Adherence to the World Cancer Research Fund/American Institute for Cancer Research recommendations for cancer prevention in adolescent and young adult (AYA) cancer survivors:results from the SURVAYA study

Purpose: For adolescent and young adult (AYA) cancer survivors with a good prognosis, having a healthy lifestyle prevents morbidity and mortality after treatment. The aim of this study was to investigate the prevalence of (un)healthy lifestyle behaviors and related determinants in AYA cancer survivors. Methods: A population-based, cross-sectional study was performed among long-term (5–20 years) AYA cancer survivors (18–39 years old at diagnosis) registered within the Netherlands Cancer Registry. Self-reported questionnaires data about health behaviors were used to calculate the 2018 World Cancer Research Fund/American Institute for Cancer Research (WCRF/AICR) adherence score. Associations between the score and clinical/sociodemographic determinants of (un)healthy behaviors were investigated using logistic regression models. Results: The mean WCRF/AICR score was low to moderate, 3.8 ± 1.2 (0.5–7.0) (n = 3668). Sixty-one percent adhered to “limit the consumption of sugar sweetened drinks,” 28% to “be a healthy weight,” 25% to “fruit and vegetable consumption,” and 31% to “limit alcohol consumption.” Moderate and high adherence were associated with being a woman (ORmoderate = 1.46, 95% CI = 1.14–1.85, and ORhigh = 1.87, 95% CI = 1.46–2.4) and highly educated (ORmoderate = 1.54, 95% CI = 1.30–1.83, and ORhigh = 1.87, 95% CI = 1.46–2.4). Low adherence was associated with smoking (ORmoderate = 0.68, 95% CI = 0.50–0.92, and ORhigh = 0.30, 95% CI = 0.21–0.44) and diagnosis of germ cell tumor (ORmoderate = 0.58, 95% CI = 0.39–0.86, and ORhigh = 0.45, 95% CI = 0.30–0.69). Conclusions: Adherence to the 2018 WCRF/AICR lifestyle recommendations was low to moderate, especially regarding body weight, fruit, vegetables, and alcohol consumption. Men, current smokers, lower-educated participants, and/or those diagnosed with germ cell tumors were less likely to have a healthy lifestyle. Implications for Cancer Survivors: Health-promotion programs (e.g., age-specific tools) are needed, focusing on high-risk groups.</p

Adherence to the World Cancer Research Fund/American Institute for Cancer Research recommendations for cancer prevention in adolescent and young adult (AYA) cancer survivors:results from the SURVAYA study

Purpose: For adolescent and young adult (AYA) cancer survivors with a good prognosis, having a healthy lifestyle prevents morbidity and mortality after treatment. The aim of this study was to investigate the prevalence of (un)healthy lifestyle behaviors and related determinants in AYA cancer survivors. Methods: A population-based, cross-sectional study was performed among long-term (5–20 years) AYA cancer survivors (18–39 years old at diagnosis) registered within the Netherlands Cancer Registry. Self-reported questionnaires data about health behaviors were used to calculate the 2018 World Cancer Research Fund/American Institute for Cancer Research (WCRF/AICR) adherence score. Associations between the score and clinical/sociodemographic determinants of (un)healthy behaviors were investigated using logistic regression models. Results: The mean WCRF/AICR score was low to moderate, 3.8 ± 1.2 (0.5–7.0) (n = 3668). Sixty-one percent adhered to “limit the consumption of sugar sweetened drinks,” 28% to “be a healthy weight,” 25% to “fruit and vegetable consumption,” and 31% to “limit alcohol consumption.” Moderate and high adherence were associated with being a woman (ORmoderate = 1.46, 95% CI = 1.14–1.85, and ORhigh = 1.87, 95% CI = 1.46–2.4) and highly educated (ORmoderate = 1.54, 95% CI = 1.30–1.83, and ORhigh = 1.87, 95% CI = 1.46–2.4). Low adherence was associated with smoking (ORmoderate = 0.68, 95% CI = 0.50–0.92, and ORhigh = 0.30, 95% CI = 0.21–0.44) and diagnosis of germ cell tumor (ORmoderate = 0.58, 95% CI = 0.39–0.86, and ORhigh = 0.45, 95% CI = 0.30–0.69). Conclusions: Adherence to the 2018 WCRF/AICR lifestyle recommendations was low to moderate, especially regarding body weight, fruit, vegetables, and alcohol consumption. Men, current smokers, lower-educated participants, and/or those diagnosed with germ cell tumors were less likely to have a healthy lifestyle. Implications for Cancer Survivors: Health-promotion programs (e.g., age-specific tools) are needed, focusing on high-risk groups.</p