GC/MS Profiling of the Essential Oil and Lipophilic Extract of Moricandia sinaica Boiss. and Evaluation of Their Cytotoxic and Antioxidant Activities.

The genus Moricandia (Brassicaceae) comprises about eight species that were used in traditional medicine. Moricandia sinaica is used to alleviate certain disorders such as syphilis and exhibits analgesic, anti-inflammatory, antipyretic, antioxidant, and antigenotoxic properties. Throughout this study, we aimed to figure out the chemical composition of lipophilic extract and essential oil obtained from M. sinaica aerial parts using GC/MS analysis, as well as their cytotoxic and antioxidant activities correlated with the major detected compounds' molecular docking. The results revealed that both the lipophilic extract and the oil were found to be rich in aliphatic hydrocarbons, accounting for 72.00% and 79.85%, respectively. Furthermore, the lipophilic extract's major constituents are octacosanol, γ-sitosterol, α-amyrin, ß-amyrin acetate, and α-tocopherol. Contrarily, monoterpenes and sesquiterpenes accounted for the majority of the essential oil. The essential oil and the lipophilic extract of M. sinaica showed cytotoxic properties towards human liver cancer cells (HepG2) with IC50 values of 126.65 and 220.21 µg/mL, respectively. The lipophilic extract revealed antioxidant activity in the DPPH assay with an IC50 value of 2679 ± 128.13 µg/mL and in the FRAP assay, moderate antioxidant potential was expressed as 44.30 ± 3.73 µM Trolox equivalent/mg sample. The molecular docking studies revealed that ꞵ-amyrin acetate, α -tocopherol, γ-sitosterol, and n-pentacosaneachieved the best docking scores for NADPH oxidase, phosphoinositide-3 kinase, and protein kinase B. Consequently, M. sinaica essential oil and lipophilic extract can be employed as a viable management strategy for oxidative stress conditions and the formulation of improved cytotoxic treatment regimens.

Prevalence of STIs, sexual practices and substance use among 2083 sexually active unmarried women in Lebanon.

Access to sexual and reproductive health in conservative communities and in the MENA region are particularly limited and, as such, increase women's vulnerability to unwanted pregnancies, unsafe abortions, and sexually transmitted infections (STIs). The aim was to assess the prevalence of STIs, sexual practices, recreational drug-use and their possible associations among cisgender unmarried women residing in Lebanon. Data on demographics, sexual practices and substance-use were collected from 2083 unmarried cisgender women who voluntarily attended a sexual health clinic in Lebanon between 2015 and 2019. They tested for HIV, Hepatitis B, Hepatitis C and Syphilis through rapid testing. Other infections (genital warts, Neisseria gonorrhea/Chlamydia trachomatis) were screened for. Regression models were computed between variables. There were two cases of HIV, one of Hepatitis B and syphilis, and no cases of Hepatitis C. Genital warts were present in 15% and symptoms indicative of Neisseria gonorrhea/Chlamydia trachomatis in 14%. Inconsistent condom-use (81%) was significantly associated with number of partners (adj. OR: 0.4). Inconsistent condom-use discussion with partners (33%) was significantly associated with unemployment (adj OR: 1.7), recreational drug-use (adj. OR: 1.4), and number of partners (adj. ORs 3.7-4.4). Unwanted pregnancies (11%) were significantly associated with age (adj. ORs 0.1-0.37), recreational drug-use (adj. OR: 2), using intrauterine device (adj. OR:2.9) and natural birth control methods (adj. OR: 2.4). Recreational drug-use (33%) was significantly associated with age (adj ORs 1.9-2.2), and smoking status (adj. OR: 0.6). The results indicate an urgent need for: (1) Accessible, non-stigmatizing, and inclusive sexual health services dedicated to women's sexual health; (2) Comprehensive and non-stigmatizing sexual health education for all, but especially women, in order to promote safer sexual practices and effective decision making with regards to contraception and condom-use.

Prevalence of HIV and other sexually transmitted infections and their association with sexual practices and substance use among 2238 MSM in Lebanon.

UNAIDS report documents 95% increase in new HIV infections among key populations in Eastern Europe and Middle East and North Africa region. Data on HIV and STIs among MSM in Lebanon is still scarce. Therefore, the aim was to assess prevalence of HIV and sexually transmitted infections (STIs) among men who have sex with men (MSM) in Lebanon and associations with sexual practices and substance-use. 2238 MSM attended a sexual health clinic in Lebanon between 2015-2018. Demographics, substance-use and sexual practices were collected. Attendees tested for HIV and other STIs. HIV infection was diagnosed in 5.6% of the sample. Only 19% received sexual health education from reliable sources (school/university/healthcare workers), 78% reported having multiple partners in the past three months (2-5 partners: 58%, 6+: 20%) and 67% reported inconsistent condom-use. Moreover, 40% of HIV + cases were returning attendees who already received information about condom-use. Additionally, having only a school level education (11%) increases the odds of having inconsistent condom-use with casual partners (adj.OR:1.9, p < 0.001). The results reflect the urgent need for: (1) accurate and comprehensive sexual health and harm reduction education and promotion in Lebanon; (2) making pre-exposure prophylaxis available for free to key populations to contain the epidemics at an early stage.

High-dose-rate brachytherapy boost for prostate cancer: Comparison of three different fractionation schemes.

PURPOSE: Dose escalation for prostate cancer can be achieved with a combination of external beam radiotherapy (EBRT) and brachytherapy (BT) boost to increase local control. For high-dose-rate (HDR)-BT, optimal fractionation remains under debate. The objective was to assess the clinical outcome of three schemes of HDR-BT boost. METHODS AND MATERIALS: Retrospective single institution data collection was performed. Patients received 46 Gy EBRT then an HDR-BT boost: 3 × 6 Gy, 2 × 9 Gy, or 1 × 14 Gy. HDR needles were placed under general anesthesia with endorectal ultrasonography guidance. CT-scan and treatment were performed postoperatively. RESULTS: Between 2009 and 2012, 159 patients were included. Nine patients (5.7%) were low, 32 (20.1%) intermediate, and 118 (74.2%) high risk (D'Amico classification) without significant difference between the three BT schemes. With a median followup of 61 months, 5-year biochemical relapse-free survival, 5-year local relapse-free survival, 5-year metastases-free survival, and 5-year overall survival rates were 86.6% (SE 2.7%), 98.3% (SE 1%), 95.3% (SE 1%), and 96.5% (SE 1.5%), respectively, with no significant difference between the BT schemes. The rates of acute ≥ G2 genitourinary and ≥G2 gastrointestinal toxicities were 11.3% and 6.3%, respectively (p = NS). The rates of late genitourinary ≥ G2 and gastrointestinal ≥ G2 toxicities (at last followup) were 9.4% and 0.6% with, respectively, 0.6% and 0% of G4 (p = NS). CONCLUSIONS: Hypofractionation up to a single-fraction HDR-BT boost for prostate cancer yields similar results in terms of biochemical control and late toxicity compared with two or three-fraction schemes. Single fraction HDR-BT appears acceptable for boosting prostate cancer after definitive EBRT.