CHEMICAL COMPOSITION, ANTIOXIDANT AND HEMOLYTIC ACTIVITIES OF SAGE (SALVIA FRUTICOSA MILLER) CULTIVATED IN LEBANON

As part of the efforts contributing towards encouraging the cultivation of commercially valuable medicinal and aromatic plants and the conservation of vulnerable wild species suffering from depletion due to destructive unsustainable harvesting from the wild, we set out to assess the in vitro antioxidant activity, decipher the phytochemical profile, and evaluate the hemolytic activity of Salvia fruticosa Miller cultivated at Beirut Arab University herbal garden in Bekaa, Eastern Lebanon. The chemical compositions of the methanolic, aqueous and essential oil extracts were assessed by GC-MS analysis. In addition, the total phenolic, total flavonoid, total carbohydrate and total protein contents were determined for the methanolic and aqueous extracts. The antioxidant activity of all samples was evaluated using the DPPH radical scavenging, β-carotene bleaching, superoxide radical scavenging, reducing power and metal chelating activity assays. The overall analysis of data revealed that the methanolic and aqueous extracts exhibited potent antioxidant activity while the essential oil showed weak activity. Furthermore, strong correlation was found between the antioxidant activities and phytochemicals content. Finally, the cytotoxicity of the essential oil and extracts against human erythrocytes was assessed using the hemolysis assay. The aqueous extract did not show any hemolytic effect within the used concentration range. On the other hand, the methanolic extract showed a weak hemolytic activity, while the essential oil showed high hemolytic activity at the highest concentration used. The collective analysis of the data offered an encouraging evidence for the cultivation of commercially valuable medicinal aromatic plants (MAPs) such as S. fruticosa Miller as a supportive measure for the Lebanese economy

Using a Targeted OSCE Station to Measure Unprofessional Behavior

Standardized patients are widely used in medical education but their use to assess professionalism is limited. With grant support from the Edward J. Stemmler, MD Medical Education Research Fund (“Stemmler Fund”) of the National Board of Medical Examiners (NBME), the usefulness of standardized patients (SPs) in the assessment of professional behavior was investigated. A targeted professionalism OSCE station featuring a values conflict was written. A professionalism instrument was developed and subsequently revised during the course of the study, with the final version containing various components of American Board of Internal Medicine (ABIM) core set of eight professionalism attributes and several other scales in recent medical research. Presented at the Ottawa Conference, 2006

breastfeeding in breast cancer survivors pattern behaviour and effect on breast cancer outcome

Abstract Little is known regarding the safety and feasibility of breastfeeding in women with a history of breast cancer. We have performed a survey among breast cancer patients who completed their pregnancy following breast cancer management to examine their lactation behaviours and its effect on breast cancer outcome. Out of 32 women identified, 20 were reachable and accepted to take the questionnaire. Ten women initiated breastfeeding, 4 stopped within one month and 6 had long-term success with a median period of 11 months (7–17 months). The latter were all previously subjected to breast conserving surgery and received qualified lactation counselling at delivery. The main reasons for not initiating breastfeeding were "uncertainty regarding maternal safety" and "a priori unfeasibility" expressed either by the obstetrician or by the oncologist. At a median follow-up of 48 months following delivery, all 20 women were alive with two relapses; one in each group (i.e., lactating and non-lactating). This analysis adds to the limited available evidence on the feasibility and safety of breastfeeding in breast cancer survivors. Proper fertility and survivorship counselling is crucial and requires more attention in breast cancer clinics

Fertility sparing surgery for stage Ic ovarian cancer: An eight case series

Introduction. One case out of 3 cases of primary ovarian cancer is diagnosed at an early stage. Almost 15% of ovarian cancers are diagnosed in women who are within the range of procreation age, raising the debate on the feasibility of fertility-sparing surgery (FSS) for those tumors. In the case the patient is admitted with stage 1A or 1B in most histologic types, it is still controversial in stage 1C. Results and Discussions. This is an eight-patient-case series. The median age is 27 years old (ranging from 18 to 42). The main clinical manifestation was pelvic pain (87.5%). Four patients (50%) presented with tumor torsion. All patients underwent FSS; five of them (62.5%) had conservative staging, two (25%) underwent salpingooophorectomy and one (12.5%) ovariectomy, type histo + stade Figo. The chemotherapeutic treatment was administered to four patients (50%) following surgery without major side effects. One patient (12.5%) presented a loco regional recurrence that occurred 14 months later. She was treated with combined chemotherapy and radical surgery. One patient out of eight (12.5%) achieved a natural pregnancy after the treatment and another one (12.5%) was submitted to an assisted reproductive procedure which did not result in a viable pregnancy. Conclusion. FSS seems to be a suitable approach for stage 1C ovarian cancer. However, more case series and meta-analyses should be conducted

Stereotactic radiotherapy for neovascular age-related macular degeneration (STAR): a pivotal, randomised, double-masked, sham-controlled device trial

Background: Neovascular age-related macular degeneration (nAMD) is a leading cause of blindness. The first-line therapy is anti-vascular endothelial growth factor (anti-VEGF) agents delivered by intravitreal injection. Ionising radiation mitigates key pathogenic processes underlying nAMD, and therefore has therapeutic potential. STAR aimed to assess whether stereotactic radiotherapy (SRT) reduces the number of anti-VEGF injections required, without sacrificing visual acuity. Methods: This pivotal, randomised, double-masked, sham-controlled trial enrolled participants with pretreated chronic active nAMD from 30 UK hospitals. Participants were randomly allocated in a 2:1 ratio to 16-Gray (Gy) SRT delivered using a robotically controlled device or sham SRT, stratified by treatment centre. Eligible participants were aged 50 years or older and had chronic active nAMD, with at least three previous anti-VEGF injections, including at least one in the last 4 months. Participants and all trial and image reading centre staff were masked to treatment allocation, except one unmasked statistician. The primary outcome was the number of intravitreal ranibizumab injections required over 2 years, tested for superiority (fewer injections). The main secondary outcome was Early Treatment Diabetic Retinopathy Study visual acuity at two years, tested for non-inferiority (five-letter margin). The primary analysis used the intention-to-treat principle, and safety was analysed per-protocol on participants with available data. The study is registered with ClinicalTrials.gov (NCT02243878) and is closed for recruitment. Findings: 411 participants enrolled between Jan 1, 2015, and Dec 27, 2019, and 274 were randomly allocated to the 16-Gy SRT group and 137 to the sham SRT group. 240 (58%) of all participants were female, and 171 (42%) of all participants were male. 241 participants in the 16-Gy SRT group and 118 participants in the sham group were included in the final analysis, and 409 patients were treated and formed the safety population, of whom two patients allocated to sham treatment erroneously received 16-Gy SRT. The SRT group received a mean of 10·7 injections (SD 6·3) over 2 years versus 13·3 injections (5·8) with sham, a reduction of 2·9 injections after adjusting for treatment centre (95% CI –4·2 to –1·6, p&lt;0·0001). The SRT group best-corrected visual acuity change was non-inferior to sham (adjusted mean letter loss difference between groups, –1·7 letters [95% CI –4·2 to 0·8]). Adverse event rates were similar across groups, but reading centre-detected microvascular abnormalities occurred in 77 SRT-treated eyes (35%) and 13 (12%) sham-treated eyes. Overall, eyes with microvascular abnormalities tended to have better best-corrected visual acuity than those without. Fewer ranibizumab injections offset the cost of SRT, saving a mean of £565 per participant (95% CI –332 to 1483). Interpretation: SRT can reduce ranibizumab treatment burden without compromising vision. Funding: Medical Research Council and National Institute for Health and Care Research Efficacy and Mechanism Evaluation Programme.</p

Effectiveness of Innovation Platforms in Enhancing the Viability of the Wheat Seed Sector in Terbol Station, Lebanon

The objective of this research was to assess the effectiveness of the innovation platform (IP) (Terbol Station) on the wheat seed sector in Lebanon. Data were collected from 16 seed producers after identifying and mapping the key stakeholders in the seed sector. Descriptive statistics was used to categorize and evaluate the efficacy of the innovation platform by identifying six groups: seed availability and access, knowledge and training, seed production and market impact, incentives, joint planning, and the situation of the seed sector in Lebanon. Incentives and joint planning were found to be the primary groups of the IP that the farmers emphasized their importance. The correlation between different groups was found to be statistically significant. Farmers noted that the wheat seed sector is non-profitable and, therefore, needs financial support and joint planning of the value chain. The study recommends the intervention of the government and the Ministries of Agriculture and Economy & Trade by customizing governance strategies and policies. In addition, the adaptation of regulatory measures of the wheat seed sector and agricultural guidance can provide essential information, recommendations, and expertise to optimize the production, distribution, and utilization of seeds in Lebanon

Risk of Obstructive Sleep Apnea in Patients with Type 2 Diabetes Mellitus in Jeddah, Saudi Arabia.

Background Obstructive sleep apnea (OSA) is a sleep related breathing disorder defined as repeated episodes of upper airway collapse during sleep. One of the major risk factors of obstructive sleep apnea is obesity. Aim To assess the risk of obstructive sleep apnea among type 2 diabetic patients at National Guard Hospital in Jeddah, Saudi Arabia. Methods The STOP-BANG sleep apnea screening questionnaire was used in this study. The sample size is of 171 participants. A cross-sectional study was performed at National Guard Hospital in Jeddah, Saudi Arabia. A study sample of 171 was included. A STOP-BANG questionnaire formed of eight questions was used to assess the risk of OSA among type 2 diabetic patients. Score of the questionnaire was divided into three groups: Low risk (from 0 to 2 points), intermediate risk (from 3 to 4 points) and high risk (from 5 to 8 points). Results Of all patients with type 2 diabetes mellitus in the study, 9.4 per cent had low risk, 18.7 per cent had intermediate risk and 71.7 per cent had high risk for OSA. There was no significant correlation between the score and last fasting blood sugar and HbA1c’s level, with p-values of 0.554 and 0.335, respectively. There was a significant relationship between the type of treatment and the risk of developing OSA (

Involvement of Essential Signaling Cascades and Analysis of Gene Networks in Diabesity

(1) Aims: Diabesity, defined as diabetes occurring in the context of obesity, is a serious health problem that is associated with an increased risk of premature heart attack, stroke, and death. To date, a key challenge has been to understand the molecular pathways that play significant roles in diabesity. In this study, we aimed to investigate the genetic links between diabetes and obesity in diabetic individuals and highlight the role(s) of shared genes in individuals with diabesity. (2) Methods: The interactions between the genes were analyzed using the Search Tool for the Retrieval of Interacting Genes (STRING) tool after the compilation of obesity genes associated with type 1 diabetes (T1D), type 2 diabetes (T2D), and maturity-onset diabetes of the young (MODY). Cytoscape plugins were utilized for enrichment analysis. (3) Results: We identified 546 obesity genes that are associated with T1D, T2D, and MODY. The network backbone of the identified genes comprised 514 nodes and 4126 edges with an estimated clustering coefficient of 0.242. The Molecular Complex Detection (MCODE) generated three clusters with a score of 33.61, 16.788, and 6.783, each. The highest-scoring nodes of the clusters were , , and genes. The genes from cluster 1 were enriched in FOXO-mediated transcription of oxidative stress, renin secretion, and regulation of lipolysis in adipocytes. The cluster 2 genes enriched in Src homology 2 domain-containing (SHC)-related events triggered by , regulation of lipolysis in adipocytes, and GRB2: SOS produce a link to mitogen-activated protein kinase (MAPK) signaling for integrins. The cluster 3 genes ere enriched in IGF1R signaling cascade and insulin signaling pathway. (4) Conclusion: This study presents a platform to discover potential targets for diabesity treatment and helps in understanding the molecular mechanism.The APC was funded by Qatar University Internal Grant number [QUST-2-CHS-2020-12

Deciphering the Role of Filamin B Calponin-Homology Domain in Causing the Larsen Syndrome, Boomerang Dysplasia, and Atelosteogenesis Type I Spectrum Disorders via a Computational Approach.

Filamins (FLN) are a family of actin-binding proteins involved in regulating the cytoskeleton and signaling phenomenon by developing a network with F-actin and FLN-binding partners. The FLN family comprises three conserved isoforms in mammals: FLNA, FLNB, and FLNC. FLNB is a multidomain monomer protein with domains containing an actin-binding N-terminal domain (ABD 1-242), encompassing two calponin-homology domains (assigned CH1 and CH2). Primary variants in FLNB mostly occur in the domain (CH2) and surrounding the hinge-1 region. The four autosomal dominant disorders that are associated with variants are Larsen syndrome, atelosteogenesis type I (AOI), atelosteogenesis type III (AOIII), and boomerang dysplasia (BD). Despite the intense clustering of variants contributing to the LS-AO-BD disorders, the genotype-phenotype correlation is still enigmatic. In silico prediction tools and molecular dynamics simulation (MDS) approaches have offered the potential for variant classification and pathogenicity predictions. We retrieved 285 FLNB missense variants from the UniProt, ClinVar, and HGMD databases in the current study. Of these, five and 39 variants were located in the CH1 and CH2 domains, respectively. These variants were subjected to various pathogenicity and stability prediction tools, evolutionary and conservation analyses, and biophysical and physicochemical properties analyses. Molecular dynamics simulation (MDS) was performed on the three candidate variants in the CH2 domain (W148R, F161C, and L171R) that were predicted to be the most pathogenic. The MDS analysis results showed that these three variants are highly compact compared to the native protein, suggesting that they could affect the protein on the structural and functional levels. The computational approach demonstrates the differences between the FLNB mutants and the wild type in a structural and functional context. Our findings expand our knowledge on the genotype-phenotype correlation in FLNB-related LS-AO-BD disorders on the molecular level, which may pave the way for optimizing drug therapy by integrating precision medicine.This publication was supported by Qatar University Internal Grant No QUST-2-CHS-2020-12. Udhaya Kumar. S, one of the authors, gratefully acknowledges the Indian Council of Medical Research (ICMR), India, for providing him a Senior Research Fellowship [ISRM/11(93)/2019]. The authors would like to thank the Vellore Institute of Technology, India, and Qatar University, Qatar, for providing the necessary research facilities and encouragement to carry out this work

The Pediatric Choroidal and Ciliary Body Melanoma Study A Survey by the European Ophthalmic Oncology Group

Purpose: To collect comprehensive data on choroidal and ciliary body melanoma (CCBM) in children and to validate hypotheses regarding pediatric CCBM: children younger than 18 years, males, and those without ciliary body involvement (CBI) have more favorable survival prognosis than young adults 18 to 24 years of age, females, and those with CBI. Design: Retrospective, multicenter observational study. Participants: Two hundred ninety-nine patients from 24 ocular oncology centers, of whom 114 were children (median age, 15.1 years; range, 2.7-17.9 years) and 185 were young adults. Methods: Data were entered through a secure website and were reviewed centrally. Survival was analyzed using Kaplan-Meier analysis and Cox proportional hazards regression. Main Outcome Measures: Proportion of females, tumor-node-metastasis (TNM) stage, cell type, and melanoma-related mortality. Results: Cumulative frequency of having CCBM diagnosed increased steadily by 0.8% per year of age between 5 and 10 years of age and, after a 6-year transition period, by 8.8% per year from age 17 years onward. Of children and young adults, 57% and 63% were female, respectively, which exceeded the expected 51% among young adults. Cell type, known for 35% of tumors, and TNM stage (I in 22% and 21%, II in 49% and 52%, III in 30% and 28%, respectively) were comparable for children and young adults. Melanoma-related survival was 97% and 90% at 5 years and 92% and 80% at 10 years for children compared with young adults, respectively (P = 0.013). Males tended to have a more favorable survival than females among children (100% vs. 85% at 10 years; P = 0.058). Increasing TNM stage was associated with poorer survival (stages I, II, and III: 100% vs. 86% vs. 76%, respectively; P = 0.0011). By multivariate analysis, being a young adult (adjusted hazard rate [HR], 2.57), a higher TNM stage (HR, 2.88 and 8.38 for stages II and III, respectively), and female gender (HR, 2.38) independently predicted less favorable survival. Ciliary body involvement and cell type were not associated with survival. Conclusions: This study confirms that children with CCBM have a more favorable survival than young adults 18 to 25 years of age, adjusting for TNM stage and gender. The association between gender and survival varies between age groups. (C) 2016 by the American Academy of Ophthalmology.Peer reviewe