Antisense oligonucleotides restore excitability, GABA signalling and sodium current density in a Dravet syndrome model.

Dravet syndrome is an intractable developmental and epileptic encephalopathy caused by de novo variants in SCN1A resulting in haploinsufficiency of the voltage-gated sodium channel Nav1.1. We showed previously that administration of the antisense oligonucleotide STK-001, also called ASO-22, generated using targeted augmentation of nuclear gene output technology to prevent inclusion of the nonsense-mediated decay, or poison, exon 20N in human SCN1A, increased productive Scn1a transcript and Nav1.1 expression and reduced the incidence of electrographic seizures and sudden unexpected death in epilepsy in a mouse model of Dravet syndrome. Here, we investigated the mechanism of action of ASO-84, a surrogate for ASO-22 that also targets splicing of SCN1A exon 20N, in Scn1a+/- Dravet syndrome mouse brain. Scn1a +/- Dravet syndrome and wild-type mice received a single intracerebroventricular injection of antisense oligonucleotide or vehicle at postnatal Day 2. We examined the electrophysiological properties of cortical pyramidal neurons and parvalbumin-positive fast-spiking interneurons in brain slices at postnatal Days 21-25 and measured sodium currents in parvalbumin-positive interneurons acutely dissociated from postnatal Day 21-25 brain slices. We show that, in untreated Dravet syndrome mice, intrinsic cortical pyramidal neuron excitability was unchanged while cortical parvalbumin-positive interneurons showed biphasic excitability with initial hyperexcitability followed by hypoexcitability and depolarization block. Dravet syndrome parvalbumin-positive interneuron sodium current density was decreased compared to wild-type. GABAergic signalling to cortical pyramidal neurons was reduced in Dravet syndrome mice, suggesting decreased GABA release from interneurons. ASO-84 treatment restored action potential firing, sodium current density and GABAergic signalling in Dravet syndrome parvalbumin-positive interneurons. Our work suggests that interneuron excitability is selectively affected by ASO-84. This new work provides critical insights into the mechanism of action of this antisense oligonucleotide and supports the potential of antisense oligonucleotide-mediated upregulation of Nav1.1 as a successful strategy to treat Dravet syndrome.

Risk of cervical intraepithelial neoplasia grade 2 or worse in women aged ≥ 69 referred to colposcopy due to an HPV-positive screening test.

BACKGROUND: Cervical cancer incidence and mortality rates are high in older women in many developed countries, including Denmark. Therefore, Danish women aged 69 and older were invited for one additional human papilloma virus (HPV) based screening test in 2017. Here, we describe the clinical management and detection rate of cervical intraepithelial neoplasia grade 2 or worse (CIN2 +) in screen-positive women referred for colposcopy. METHODS: We conducted an observational study in public gynecology departments in Central Denmark Region, Denmark. Women were eligible for enrolment if they were aged 69 + in 2017, HPV positive on a screening test taken between April 20th, 2017, and December 31st, 2017, and had been referred for direct colposcopy. Data on participants' characteristics, colposcopic findings, and histological outcomes were collected from medical records and the Danish Pathology Databank. We estimated the proportion of women with CIN2 + at the first colposcopy visit and at end of follow up including 95% confidence intervals (CIs). RESULTS: A total of 191 women were included with a median age of 74 years (IQR: 71-78). Most women (74.9%) did not have a fully visible transformation zone at colposcopy. At the first visit 170 women (89.0%) had a histological sample collected, 34 of whom (20.0%, 95% CI 14.3-26.8%) had CIN2 + diagnosed, 19 had CIN3 + , and two had cervical cancer). During follow-up additional CIN2 + were detected resulting in a total of 42 women (24.4%, 95% CI: 18.2-31.5%) being diagnosed with CIN2 + , 25 with CIN3 + , and three with cervical cancer. When restricting to women with paired histologic results (i.e., biopsies and a loop electrosurgical excision procedure (LEEP) specimen), we found that CIN2 + was missed in 17.9% (95% CI 8.9-30.4%) of biopsies compared to the LEEP. CONCLUSION: Our findings suggest a potential risk of underdiagnosis in older postmenopausal women referred to colposcopy. Future studies should explore potential risk-markers for discrimination of women at increased risk of CIN2 + from those at low risk, as this would reduce risk of underdiagnosis and overtreatment.

Adherence to the EAT-Lancet Diet and Risk of Stroke and Stroke Subtypes: A Cohort Study.

BACKGROUND AND PURPOSE: We investigated the association between adherence to the EAT-Lancet diet, a sustainable and mostly plant-based diet, and risk of stroke and subtypes of stroke in a Danish population. For comparison, we also investigated the Alternate Healthy Eating Index-2010 (AHEI). METHODS: We used the Danish Diet, Cancer and Health cohort (n=55 016) including adults aged 50 to 64 years at baseline (1993-1997). A food frequency questionnaire was used to assess dietary intake and group participants according to adherence to the diets. Stroke cases were identified using a national registry and subsequently validated by review of medical records (n=2253). Cox proportional hazards models were used to estimate hazard ratios and 95% CIs for associations with the EAT-Lancet diet or the AHEI and risk of stroke and stroke subtypes. RESULTS: Adherence to the EAT-Lancet diet was associated with a lower risk of stroke, although not statistically significant (highest versus lowest adherence: hazard ratio, 0.91 [95% CI, 0.76-1.09]). A lower risk was observed for AHEI (0.75 [95% CI, 0.64-0.87]). For stroke subtypes, we found that adherence to the EAT-Lancet diet was associated with a lower risk of subarachnoid hemorrhage (0.30 [95% CI, 0.12-0.73]), and the AHEI was associated with a lower risk of ischemic stroke (0.76 [95% CI, 0.64-0.90]) and intracerebral hemorrhage (0.58 [95% CI, 0.36-0.93]). CONCLUSIONS: Adherence to the EAT-Lancet diet in midlife was associated with a lower risk of subarachnoid stroke, and the AHEI was associated with a lower risk of total stroke, mainly ischemic stroke and intracerebral hemorrhage.

High Intensity Aerobic exercise training and Immune cell Mobilization in patients with lung cancer (HI AIM)-a randomized controlled trial.

BACKGROUND: The increasing role of exercise training in cancer care is built on evidence that exercise can reduce side effects of treatment, improve physical functioning and quality of life. We and others have shown in mouse tumor models, that exercise leads to an adrenalin-mediated increased influx of T and NK cells into the tumor, altering the tumor microenvironment (TME) and leading to reduced tumor growth. These data suggest that exercise could improve immune responses against cancer cells by increase immune cell infiltration to the tumor and potentially having an impact on disease progression. Additionally, there are data to suggest that infiltration of T and NK cells into the TME is correlates with response to immune checkpoint inhibitors in patients. We have therefore initiated the clinical trial HI AIM, to investigate if high intensity exercise can mobilize and increase infiltration of immune cells in the TME in patients with lung cancer. METHODS: HI AIM (NCT04263467) is a randomized controlled trial (70 patients, 1:1) for patients with non-small cell lung cancer. Patients in the treatment arm, receive an exercise-intervention consisting of supervised and group-based exercise training, comprising primarily intermediate to high intensity interval training three times per week over 6 weeks. All patients will also receive standard oncological treatments; checkpoint inhibitors, checkpoint inhibitors combined with chemotherapy or oncological surveillance. Blood samples and biopsies (ultrasound guided), harvested before, during and after the 6-week training program, will form basis for immunological measurements of an array of immune cells and markers. Primary outcome is circulating NK cells. Secondary outcome is other circulating immune cells, infiltration of immune cells in tumor, inflammatory markers, aerobic capacity measured by VO2 max test, physical activity levels and quality of life measured by questionnaires, and clinical outcomes. DISCUSSION: To our knowledge, HI AIM is the first project to combine supervised and monitored exercise in patients with lung cancer, with rigorous analyses of immune and cancer cell markers over the course of the trial. Data from the trial can potentially support exercise as a tool to mobilize cells of the immune system, which in turn could potentiate the effect of immunotherapy. TRIAL REGISTRATION: The study was prospectively registered at ClinicalTrials.gov on February 10th 2020, ID: NCT04263467. https://clinicaltrials.gov/ct2/show/NCT04263467.

Assessment of recurrence rate and risk factors of relapse in stage in IA vulvar carcinoma.

OBJECTIVE: To evaluate recurrence rates and risk factors of relapse in stage IA vulvar squamous cell carcinoma (VSCC) patients. MATERIAL AND METHODS: Population-based prospectively collected data on stage IA VSCC was retrieved through the Danish Gynecological Cancer Database (DGCD) during 2011-2017. A central pathology review was performed on tumors from women with recurrent disease. RESULTS: 62 women diagnosed and treated for stage IA VSCC were identified. Nine (14.5%) of the included cases relapsed within the observation period. The recurrences were in the vulva, groins or both in 5 (8.1%), 3 (4.8%) and 1 (1.6%) of the women, respectively. At central pathology review, including all recurrent cases (n = 9), 5 out of 21 reviewed patients were upstaged to stage IB due to depth of invasion >1 mm and two were downstaged to Carcinoma in situ. Two of the upstaged women developed an isolated groin recurrence and one an isolated vulvar relapse. After exclusion of the seven cases the overall recurrence rate decreased to 10.9% (n = 6). Among these cases (n = 55) resection margin <8 mm and tumor size were associated with cancer recurrence. CONCLUSION: Pathological assessment of stage IA VSCC (depth of invasion ≤1 mm) may be difficult. This may result in under-staging, which impact the choice of treatment and possibly the prognosis. This suggests a need for further clarification of the FIGO measurement and may require a more radical approach when it comes to treatment and groin exploration in stage IA VSCC. Resection margins <8 mm and tumor size were associated with relapse of the disease.

Increased mortality in patients with porphyria cutanea tarda-A nationwide cohort study.

BACKGROUND: Porphyria cutanea tarda (PCT) is a rare hepatocutaneous disease for which the prognosis is largely unknown. OBJECTIVE: To compare all-cause and cause-specific mortality between a nationwide cohort of patients with PCT and a matched population sample. METHODS: We included all Danish patients who received a diagnosis of PCT from 1989 through 2012. Each patient was matched by age and sex to 10 random population control individuals. We compared survival and cause-specific mortality between patients and control individuals and adjusted for confounding from alcohol-related diseases, hepatitis, hemochromatosis, HIV, diabetes, acute myocardial infarction, stroke, cancer, chronic obstructive pulmonary disease, and cirrhosis. RESULTS: The 20-year survival was 42.9% (95% confidence interval [CI], 36.9-48.7) for patients with PCT compared with 60.5% (95% CI, 58.6-62.4) for matched control individuals. All-cause mortality hazard ratio (HR) was 1.80 (95% CI, 1.56-2.07) before adjustment and 1.22 (95% CI, 1.04-1.44) after adjustment. The cause-specific mortality was markedly increased for nonmalignant gastrointestinal diseases (HR, 5.32; 95% CI, 2.71-10.43) and cancers of the gut (HR, 2.05; 95% CI, 1.24-3.39), liver/gallbladder (HR, 11.24; 95% CI, 4.46-28.29), and lungs (HR, 2.17; 95% CI, 1.41-3.33). LIMITATIONS: We had no data on lifestyle factors. CONCLUSIONS: Patients with PCT have increased mortality, primarily explained by an increased mortality from gastrointestinal diseases and from cancers of the gut, liver/gallbladder, and lungs.

Is cardiovascular disease in patients with diabetes associated with serum levels of MMP-2, LOX, and the elastin degradation products ELM and ELM-2?

BACKGROUND: Diabetes mellitus type 2 (T2DM) is a significant risk factor for the development of cardiovascular diseases (CVDs). In a previous microarray study of internal mammary arteries from patients with and without T2DM, we observed several elastin-related genes with altered mRNA-expression in diabetic patients, namely matrix metalloproteinase 2 (MMP-2), lysyl oxidase (LOX) and elastin itself. In this study we investigate whether the serum concentrations of elastin-related proteins correlate to signs of CVD in patients with T2DM. METHODS: Blood samples from 302 type 2 diabetic patients were analysed for MMP-2, LOX, and the elastin degradation products ELM and ELM2. The results were investigated for correlations to signs of CVD in different vascular territories, as determined by myocardial perfusion scintigraphy, carotid artery thickness and ankle-brachial blood pressure index. RESULTS: T2DM patients with peripheral arterial disease (low ankle-brachial index) (PAD) display higher levels of MMP-2 and ELM compared to patients without PAD. However, none of the proteins or degradation products correlated with myocardial ischemia or a combined measure of CVD-signs, including myocardial ischemia, increased carotid thickness and decreased ankle-brachial blood pressure. CONCLUSIONS: Our results suggest that the diabetic environment affects the circulating amounts of MMP-2 and ELM in patients with PAD. However, the same connection could not be seen in diabetic patients with CVD broadly identified in three vascular territories. LOX and ELM-2 did not correlate to any type of CVD. Overall, serum levels of elastin-related molecules are only remotely related to CVD in type 2 diabetes.

Cutaneous Porphyrias: Causes, Symptoms, Treatments and the Danish Incidence 1989-2013.

Porphyrias are rare diseases caused by altered haem synthesis leading to the accumulation of different haem intermediates. Neurovisceral attacks may occur in acute porphyrias, while photosensitivity is the presenting symptom in cutaneous porphyrias. We present here an overview of symptoms and a flowchart for the diagnosis of cutaneous porphyrias, with recommendations for monitoring and an update of treatment options. From the Danish Porphyria Register, we present the incidences and approximate prevalences of cutaneous porphyrias within the last 25 years. A total of 650 patients with porphyria cutanea tarda were identified, 73 with erythropoietic protoporphyria, 9 with variegate porphyria, 4 with hereditary coproporphyria and one with congenital erythropoietic porphyria. The total incidence of all porphyrias was ~0.52/100,000 per year.

Site-specific colporrhaphy in posterior compartment pelvic organ prolapse.

INTRODUCTION AND HYPOTHESIS: A posterior vaginal wall prolapse is the result of specific tears in the rectovaginal fascia. The prevalence of the different defect types (superior, inferior, overstretching) is unknown, as is the subjective results after operation according to defect type. The aims of this retrospective study were to investigate the prevalence of the different injury sites and the subjective effects after an operation concerning the symptomatic feeling of a vaginal bulge and urinary incontinence in relation to defect types. METHODS: Medical case records and data from the national Danish urogynecological database in patients with a prolapse operation including posterior vaginal wall prolapse for a 6-year period were reviewed. Four hundred and five patients were included. Patients completed the International Consultation on Incontinence-Urinary Incontinence Short Form and three questions on vaginal prolapse symptoms before and 3 months postoperatively. RESULTS: The majority of women suffered from a superior defect (77 %). There was a statistically significant improvement in prolapse symptoms after surgery, with no difference between patients with different defect types. Patients with a superior defect and overstretching also experienced a statistically significant improvement in urinary incontinence. CONCLUSIONS: The superior defect was the most common defect in the rectovaginal fascia. Patients experienced an improvement in subjective prolapse symptoms concerning the feeling of a vaginal bulge with no difference regarding defect type. Patients with a superior defect or overstretching experienced a statistically significant improvement in urinary incontinence. Similar results were found whether or not concomitant prolapse operations were performed in other compartments.

Molecular diversity of avian schistosomes in Danish freshwater snails.

Avian schistosomes are widespread parasites of snails and waterfowl and may cause cercarial dermatitis (swimmer's itch) in humans, a disease that is frequently reported in European countries. These parasites are known to occur in Denmark, but here, we applied a new approach using molecular tools to identify the parasites at species level. In order to do that, 499 pulmonate freshwater snails (Radix sp., Lymnaea stagnalis, Stagnicola sp. and Planorbarius corneus) were sampled from 12 lakes, ponds, and marshes in the greater Copenhagen area. Avian schistosome cercariae were identified by microscopy and subjected to molecular investigation by sequencing and phylogenetic analysis of the 5.8S and ITS2 ribosomal DNA for species identification. Additionally, snail hosts belonging to the genus Radix were identified by sequencing and phylogenetic analysis of partial ITS2 ribosomal DNA. Three out of 499 snails shed different species of Trichobilharzia cercariae: Trichobilharzia szidati was isolated from L. stagnalis, Trichobilharzia franki from Radix auricularia and Trichobilharzia regenti from Radix peregra. In the light of the public health risk represented by bird schistosomes, these findings are of concern and, particularly, the presence of the potentially neuro-pathogenic species, T. regenti, in Danish freshwaters calls for attention.

NT-proBNP on Cobas h 232 in point-of-care testing: Performance in the primary health care versus in the hospital laboratory.

BACKGROUND: NT-proBNP may be useful for ruling out heart failure in primary health care. In this study we examined the analytical quality of NT-proBNP in primary health care on the Cobas h 232 point-of-care instrument compared with measurements performed in a hospital laboratory. MATERIALS AND METHODS: Blood samples requested for NT-proBNP were collected in primary health care (n = 95) and in a hospital laboratory (n = 107). NT-proBNP was measured on-site on Cobas h 232 instruments both in primary health care centres and at the hospital laboratory and all samples were also analyzed with a comparison method at the hospital. Precision, trueness, accuracy, and lot-variation were determined at different concentration levels and evaluated according to acceptance criteria. Furthermore user-friendliness was assessed by questionnaires. RESULTS: For Cobas h 232 repeatability CV was 8.5-10.7% in the hospital setting and 5.3-10.0% in the primary health care and within the analytical quality specifications, but higher than with the comparison method (< 4%). NT-proBNP results obtained in primary health care were significantly higher than by the hospital comparison method (bias ranged from 14.3-23.7%), whereas there was no significant bias when Cobas h 232 was used in the hospital setting (bias ranged from - 4.9 to 7.0%). User-friendliness of Cobas h 232 was overall acceptable. CONCLUSION: Cobas h 232 point-of-care instrument for measurement of NT-proBNP performed satisfactorily with regard to precision, user-friendliness, and lot-variation. A decrease in NT-proBNP levels observed in samples transported to a central laboratory needs further attention and investigation.

Preoperative smoking status and postoperative complications: a systematic review and meta-analysis.

OBJECTIVE: To systematically review and summarize the evidence of an association between preoperative smoking status and postoperative complications elaborated on complication type. BACKGROUND: The conclusions of studies examining the association between preoperative smoking and postoperative complications are inconsistent, thus there is a need for a review and meta-analysis to summarize the existing evidence. METHODS: A systematic review and meta-analysis based on a search in MEDLINE, EMBASE, CINAHL, and PsycINFO. Included were original studies of the association between smoking status and postoperative complications occurring within 30 days of operation. In total, 9354 studies were identified and reviewed for eligibility and data were extracted. Forest plots and summarized relative risks (RR) including 95% confidence intervals (CIs) were estimated for various complication types. RESULTS: Of the 9354 identified studies, 107 studies were included in the meta-analyses and based on these, 157 data sets were extracted. Preoperative smoking was associated with an increased risk of various postoperative complications including general morbidity (RR=1.52, 95% CI: 1.33-1.74), wound complications (RR=2.15, 95% CI: 1.87-2.49), general infections (RR=1.54, 95% CI: 1.32-1.79), pulmonary complications (RR=1.73, 95% CI: 1.35-2.23), neurological complications (RR=1.38, 95% CI: 1.01-1.88), and admission to intensive care unit (RR=1.60, 95% CI: 1.14-2.25). Preoperative smoking status was not observed to be associated with postoperative mortality, cardiovascular complications, bleedings, anastomotic leakage, or allograft rejection. CONCLUSIONS: Preoperative smoking was found to be associated with an increased risk of the following postoperative complications: general morbidity, wound complications, general infections, pulmonary complications, neurological complications, and admission to the intensive care unit.

Lack of harmonization in sweat testing for cystic fibrosis - a national survey.

INTRODUCTION: Sweat testing is used in the diagnosis of cystic fibrosis. Interpretation of the sweat test depends, however, on the method performed since conductivity, osmolality and chloride concentration all can be measured as part of a sweat test. The aim of this study was to investigate how performance of the test is organized in Denmark. METHODS: Departments conducting the sweat test were contacted and interviewed following a premade questionnaire. They were asked about methods performed, applied NPU (Nomenclature for Properties and Units) code, reference interval, recommended interpretation and referred literature. RESULTS: 14 departments performed the sweat test. One department measured chloride and sodium concentration, while 13 departments measured conductivity. One department used a non-existing NPU code, two departments applied NPU codes inconsistent with the method performed, four departments applied no NPU code and seven applied a correct NPU code. Ten of the departments measuring conductivity applied reference intervals. Nine departments measuring conductivity had recommendations of a normal area, a grey zone and a pathological value, while four departments only applied a normal and grey zone or a pathological value. Cut-off values for normal, grey and pathological areas were like the reference intervals inconsistent. CONCLUSION: There is inconsistent use of NPU codes, reference intervals and interpretation of sweat conductivity used in the process of diagnosing cystic fibrosis. Because diagnosing cystic fibrosis is a combined effort between local pediatric departments, biochemical and genetic departments and cystic fibrosis centers, a national harmonization is necessary to assure correct clinical use.

Pleasurable behaviors reduce stress via brain reward pathways.

Individuals often eat calorically dense, highly palatable "comfort" foods during stress for stress relief. This article demonstrates that palatable food intake (limited intake of sucrose drink) reduces neuroendocrine, cardiovascular, and behavioral responses to stress in rats. Artificially sweetened (saccharin) drink reproduces the stress dampening, whereas oral intragastric gavage of sucrose is without effect. Together, these results suggest that the palatable/rewarding properties of sucrose are necessary and sufficient for stress dampening. In support of this finding, another type of natural reward (sexual activity) similarly reduces stress responses. Ibotenate lesions of the basolateral amygdala (BLA) prevent stress dampening by sucrose, suggesting that neural activity in the BLA is necessary for the effect. Moreover, sucrose intake increases mRNA and protein expression in the BLA for numerous genes linked with functional and/or structural plasticity. Lastly, stress dampening by sucrose is persistent, which is consistent with long-term changes in neural activity after synaptic remodeling. Thus, natural rewards, such as palatable foods, provide a general means of stress reduction, likely via structural and/or functional plasticity in the BLA. These findings provide a clearer understanding of the motivation for consuming palatable foods during times of stress and influence therapeutic strategies for the prevention and/or treatment of obesity and other stress-related disorders.

Faced with a dilemma: Danish midwives' experiences with and attitudes towards late termination of pregnancy.

BACKGROUND: The introduction of prenatal screening for all pregnant women in Denmark in 2004 has lead to an increase in the number of late terminations of pregnancy after the 12th week of pregnancy. Midwives' experiences with late termination of pregnancy (TOP) are still poorly described in the scientific literature. AIM: To explore Danish midwives' experiences with and attitudes towards late TOP. Focus was on how midwives perceive their own role in late TOP, and how their professional identity is influenced by working with late TOP in a time where prenatal screening is rapidly developing. METHOD: A qualitative study consisting of ten individual interviews with Danish midwives, all of whom had taken part in late TOP. RESULTS: Current practice of late TOP resembles the practice of normal deliveries and is influenced by a growing personalisation of the aborted foetus. The midwives strongly supported women's legal right to choose TOP and considerations about the foetus' right to live were suppressed. Midwives experienced a dilemma when faced with aborted foetuses that looked like newborns and when aborted foetuses showed signs of life after a termination. Furthermore, they were critical of how physicians counsel women/couples after prenatal diagnosis. CONCLUSIONS: The midwives' practice in relation to late TOP was characterised by an acknowledgement of the growing ethical status of the foetus and the emotional reactions of the women/couples going through late TOP. Other professions as well as structural factors at the hospital highly influenced the midwives' ability to organize their work with late terminations. There is a need for more thorough investigation of how to secure the best possible working conditions for midwives, and how to optimise the care for women/couples going through late TOP.

Insufficient training in colposcopy and loop electrosurgical excision procedure among residents.

INTRODUCTION: Colposcopy is an important tool in the diagnostic work-up of women with an abnormal cervical smear. Unlike in other countries where colposcopy is mostly performed by certified colposcopists, in Denmark, colposcopy may be performed by residents in obstetrics and gynaecology (OB/Gyn). We aimed to evaluate training in colposcopy and loop electrosurgical excision procedure (LEEP) among Danish OB/Gyn residents. METHODS: Two questionnaires were developed: one for OB/Gyn residents who are required to learn colposcopy and LEEP during their residency, and one for chief physicians who are responsible for providing their training. Questionnaires were distributed by e-mails and via social media from November to December 2021. RESULTS: Among 120 eligible residents, 93 completed the questionnaire. The median age was 36 (interquartile range: 34-39) years. Most received training in colposcopy (84.9%), but the majority considered training to be insufficient (76.3%) and had low self-efficacy in performing colposcopy (72.0%). With respect to LEEP, most received training (84.9%), but nearly half considered that their training had been insufficient (43.0%) and had low self-efficacy in performing LEEP (49.5%). CONCLUSIONS: Most Danish OB/Gyn residents receive insufficient training in colposcopy and LEEP, which demonstrates a need for a formal training programme for residents and their supervisors to ensure an appropriate level of training and adequate patient care. FUNDING: Danish Association of Younger Gynaecologists and Obstetricians (FYGO). TRIAL REGISTRATION: Not relevant.

Prognostic impact of molecular profiles and molecular signatures in clear cell ovarian cancer.

OBJECTIVE: Ovarian Clear cell carcinomas (OCCC) are characterized by low response to chemotherapy and a poor prognosis in advanced stages. Several studies have demonstrated that OCCC are heterogenous entities. We have earlier identified four molecular profiles based on the mutational status of ARID1A and PIK3CA. In this study we aimed to examine the association between molecular profiles, Tumor Mutational Burden (TMB), and molecular signatures with the clinical outcome in OCCC METHODS: We identified 55 OCCC cases with corresponding data and biological tissue samples in the Danish Gynecological Cancer Database during 2005-2016. Mutational profiling and TMB were performed using the Oncomine Tumor Mutational Load Assay. Chi-square and Cox regression analyses were used. P-values < 0.05 were considered statistically significant. RESULTS: Mutations in the PIK3CA gene (p=0.04) and low TMB (p=0.05) were associated with disease progression. In multivariate analyses adjusted for stage, patients with tumor mutations in the ARID1A and/or PIK3CA genes had a significantly impaired Progression Free Survival (PFS) and Overall Survival (OS) compared to patients who were wildtype ARID1A and PIK3CA (undetermined subgroup) (HR= 5.42 and HR= 2.77, respectively). High TMB status was associated with an improved PFS (HR= 0.36) and OS (HR= 0.46). A trend towards an improved PFS in patients with APOBEC enrichment was observed (HR 0.45). CONCLUSION: TMB-High was associated with decreased risk of progression and with an improved PFS and OS. Furthermore, OCCC with mutations in either ARID1A and/or PIK3CA genes had a significantly impaired prognosis compared to the undetermined subgroup in stage adjusted analyses.

The Boost study: design of a school- and community-based randomised trial to promote fruit and vegetable consumption among teenagers.

BACKGROUND: The aim of the Boost study was to produce a persistent increase in fruit and vegetable consumption among 13-year-olds. This paper describes the development, implementation and evaluation of a school-and community-based, multi-component intervention guided by theory, evidence, and best practice. METHODS/DESIGN: We used the Intervention Mapping protocol to guide the development of the intervention. Programme activities combined environmental and educational strategies and focused on increasing access to fruit and vegetables in three settings: School: Daily provision of free fruit and vegetables; a pleasant eating environment; classroom curricular activities; individually computer tailored messages; one-day-workshop for teachers. Families: school meeting; guided child-parent activities; newsletters. Local community: guided visits in grocery stores and local area as part of classroom curriculum; information sheets to sports-and youth clubs.The Boost study employed a cluster-randomised controlled study design and applied simple two-stage cluster sampling: A random sample of 10 municipalities followed by a random sample of 4 schools within each municipality (N = 40 schools). Schools were randomised into a total of 20 intervention-and 20 control schools. We included all year 7 pupils except those from school classes with special needs. Timeline: Baseline survey: August 2010. Delivery of intervention: September 2010-May 2011. First follow-up survey: May/June 2011. Second follow-up survey: May/June 2012. PRIMARY OUTCOME MEASURES: Daily mean intake of fruit and vegetables and habitual fruit and vegetable intake measured by validated 24-hour recall-and food frequency questionnaires. SECONDARY OUTCOME MEASURES: determinants of fruit and vegetable intake, positive side-effects and unintended adverse effects. Implementation was monitored by thorough process evaluation. DISCUSSION: The baseline data file included 2,156 adolescents (95%). There was baseline equivalence between intervention-and control groups for sociodemographics, primary outcomes, and availability at home, school and sports-and youth clubs. Significantly larger proportions of pupils in the control group had parents born in Denmark. The study will provide insights into effective strategies to increase fruit and vegetable intake among teenagers. The study will gain knowledge on implementation processes, intervention effects in population subgroups with low intake, and opportunities for including local communities in interventions.

Targeted Augmentation of Nuclear Gene Output (TANGO) of Scn1a rescues parvalbumin interneuron excitability and reduces seizures in a mouse model of Dravet Syndrome.

Dravet Syndrome (DS) is a severe developmental and epileptic encephalopathy typically caused by loss-of-function de novo mutations in the SCN1A gene which encodes the voltage-gated sodium channel isoform NaV1.1. Decreased NaV1.1 expression results in impaired excitability of inhibitory interneurons and seizure onset. To date, there are no clinically available treatments for DS that directly address the core mechanism of disease; reduced NaV1.1 expression levels in interneurons. Recently, Targeted Augmentation of Nuclear Gene Output (TANGO) of SCN1A by the antisense oligonucleotide (ASO) STK-001, was shown to increase Scn1a mRNA levels, increase NaV1.1 protein expression, reduce seizures, and improve survival in the Scn1a+/- mouse model of DS. However, it remains unknown whether STK-001 treatment rescues the reduced intrinsic excitability of parvalbumin-positive (PV) inhibitory interneurons associated with DS. In this study, we demonstrate that STK-001 treatment reduces seizures, prolongs survival, and rescues PV interneuron excitability in Scn1a+/- mice to levels observed in WT littermates. Together, these results support the notion that TANGO-mediated augmentation of NaV1.1 levels directly targets and rescues one of the core disease mechanisms of DS.

Relative Quantification of NaV1.1 Protein in Mouse Brains Using a Meso Scale Discovery-Electrochemiluminescence (MSD-ECL) Method.

Densitometric analysis is often used to quantify NaV1.1 protein on immunoblots, although the sensitivity and dilution linearity of the method are usually poor. Here we present a protocol for quantification of NaV1.1 in mouse brain tissues using a Meso Scale Discovery-Electrochemiluminescence (MSD-ECL) method. MSD-ECL is based on ELISA (enzyme-linked immunosorbent assay) and uses electrochemiluminescence to produce measurable signals. Two different antibodies are used in this assay to capture and detect NaV1.1 respectively in brain tissue lysate. The specificity of the antibodies is confirmed by Scn1a gene knock-out tissue. The calibration curve standards used in this assay were generated with mouse liver lysate spiked with mouse brain lysate, instead of using a recombinant protein. We showed that this method was qualified and used for quantification of NaV1.1 in mouse brain tissues with specificity, accuracy and precision.