45 results on '"Baydoun, S."'
Search Results
2. Gundelia tournefortii L. (Akkoub): a review of a valuable wild vegetable from Eastern Mediterranean.
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Hani, N., Abulaila, K., Howes, M.-J. R., Mattana, E., Bacci, S., Sleem, K., Sarkis, L., Eddine, N. Saed, Baydoun, S., Apostolides, N. Arnold, and Ulian, T.
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Gundelia tournefortii L. (Asteraceae) is an artichoke-like wild edible vegetable that grows in the semi-arid climate of the East Mediterranean. Due to its high cultural and economic values for culinary and therapeutic uses, this plant is exposed to overharvesting driven by household consumption and trade, threatening the survival of natural populations. Some limited data on the nutrient composition of G. tournefortii exists indicating presence of folic acid and several essential amino acids. Research on seed germination reports that mechanical scarification, gibberellic acid, and cold stratification are all effective treatments for seed dormancy breaking and therefore to propagate plants from seed. Successful vegetative propagation from the plant meristems is also available. However, despite some exceptions, the species is still not widely cultivated due to its thorny habit and complex seed germination requirements, and the ability to ensure seed germination under natural field conditions remains to be addressed. [ABSTRACT FROM AUTHOR]
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- 2024
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3. Wild greens traded in the open markets of Lebanon
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Nasser, H., primary, Baydoun, S., additional, Hani, N., additional, Arnold, N., additional, and Chalak, L., additional
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- 2023
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4. First assessment of wild Triticum and Aegilops in Hermon mountain, Lebanon
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Ghossain, N., primary, Yazbek, M., additional, Baydoun, S., additional, and Chalak, L., additional
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- 2023
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5. Une maladie de McArdle révélée par une lombalgie aiguë
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Langbour, C., Nicolas, S., Bigot, A., Chu Miow Lin, D., Baydoun, S., Blasco, H., Froissart, R., Ferreira-Maldent, N., Audemard-Verger, A., and Maillot, F.
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- 2024
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6. Effect of Potassium Supply and Water Stress on Potato Drought Tolerance and Water Productivity
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Darwish, T., primary, Fadel, A., additional, Chahine, S., additional, Baydoun, S., additional, Jomaa, I., additional, and Atallah, T., additional
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- 2022
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7. Back to underutilized fruit crops in some East Mediterranean countries along the Silk Roads to cope with future challenges
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Chalak, L., primary, Baydoun, S., additional, and Tous, J., additional
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- 2021
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8. Proximate composition and nutritional attributes of some wild edible leafy plants from Lebanon
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Baydoun, S., primary, Itani, L., additional, Naser, H., additional, Haidar, M., additional, Chalak, L., additional, and Arnold-Apostolides, N., additional
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- 2020
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9. Preliminary nutritional characterization of some wild edible fruits from Lebanon
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Baydoun, S., primary, Arnold-Apostolides, N., additional, Itani, L., additional, Naser, H., additional, Haidar, M., additional, and Chalak, L., additional
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- 2020
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10. Medicinal plants and traditional ethnoveterinary practices by rural community of Lebanon
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Arnold-Apostolides, N., primary, Nasser, H., additional, and Baydoun, S., additional
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- 2020
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11. In vitro proliferation of Lebanese Lemna minor and Lemna gibba on different nutrient media
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Ghanem, H., primary, Haddad, A., additional, Baydoun, S., additional, Abou Hamdan, H., additional, Korfali, S., additional, and Chalak, L., additional
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- 2019
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12. Groundwater governance in Lebanon : the case of central Beqaa : a policy white paper
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Molle, François, Nassif, M.H., Jaber, B., Closas, A., Baydoun, S., 1IWMI2International Water Management Institute4Colombo5LKA (ed.), and 1USAID2United States Agency for International Development4Washington5USA (ed.)
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EAU POTABLE ,BESOIN EN EAU ,AGRICULTURE ,GESTION DE L'EAU ,POLITIQUE ,UTILISATION DE L'EAU ,RESSOURCES EN EAU ,GOUVERNANCE ,LEGISLATION ,INDUSTRIE ,REGLEMENTATION ,EAU SOUTERRAINE ,VALLEE ,TRAITEMENT DE L'EAU ,PRELEVEMENT - Published
- 2017
13. Seasonal Variations of Solar UVB and UVA in Syria
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Othman, I., primary and Baydoun, S. A., additional
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- 1997
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14. A low-rank iteration scheme for multi-frequency acoustic problems
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Baydoun, S. K., Li, L., Steffen Marburg, and Voigt, M.
15. Groundwater governance in Lebanon: the case of Central Beqaa. A Policy White Paper
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Molle, Francois, Nassif, M.-H., Jaber, B., Closas, Alvar, Baydoun, S., Molle, Francois, Nassif, M.-H., Jaber, B., Closas, Alvar, and Baydoun, S.
16. Groundwater governance in Lebanon: the case of Central Beqaa. A Policy White Paper
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Molle, Francois, Nassif, M.-H., Jaber, B., Closas, Alvar, Baydoun, S., Molle, Francois, Nassif, M.-H., Jaber, B., Closas, Alvar, and Baydoun, S.
17. Groundwater governance in Lebanon: the case of Central Beqaa. A Policy White Paper
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Molle, Francois, Nassif, M.-H., Jaber, B., Closas, Alvar, Baydoun, S., Molle, Francois, Nassif, M.-H., Jaber, B., Closas, Alvar, and Baydoun, S.
18. Groundwater governance in Lebanon: the case of Central Beqaa. A Policy White Paper
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Molle, Francois, Nassif, M.-H., Jaber, B., Closas, Alvar, Baydoun, S., Molle, Francois, Nassif, M.-H., Jaber, B., Closas, Alvar, and Baydoun, S.
19. Photophysical, photochemical and photobiological properties of pyrrolocoumarins; A new class of photoactive compounds
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Gibbs, N.K., primary, Quanten, E., additional, Baydoun, S., additional, Knox, C.N., additional, Roelandts, R., additional, De Schryver, F., additional, Truscott, T.G., additional, and Young, A.R., additional
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- 1988
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20. Accidental Intravenous Administration of Milk in a Newborn: A Case Report on Management Strategies and Prevention Protocols.
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Baydoun S, Awaida I, and Naufal N
- Abstract
In the following article, we present a case report detailing a medical error wherein a post-term baby boy, admitted to our neonatal intensive care unit due to respiratory distress and hypoglycemia, inadvertently received enteral formula via umbilical venous catheter over approximately one hour. Our report encompasses the hospital course, management strategies, and the resultant outcome. Immediately following the incident, the infant exhibited symptoms of respiratory distress, mottled skin, hypotension, and thrombocytopenia. Prompt intervention entailed administering supportive care, closely monitoring vital signs, particularly blood pressure, with the administration of vasopressors, and initiating broad-spectrum antibiotic therapy. Fortunately, the infant responded well to treatment and exhibited no discernible long-term adverse effects. Subsequent to the incident, thorough investigations were conducted to ascertain its root cause. Furthermore, measures were implemented to enhance medical staff education regarding such occurrences and to develop preventive protocols., Competing Interests: Human subjects: Consent for treatment and open access publication was obtained or waived by all participants in this study. Conflicts of interest: In compliance with the ICMJE uniform disclosure form, all authors declare the following: Payment/services info: All authors have declared that no financial support was received from any organization for the submitted work. Financial relationships: All authors have declared that they have no financial relationships at present or within the previous three years with any organizations that might have an interest in the submitted work. Other relationships: All authors have declared that there are no other relationships or activities that could appear to have influenced the submitted work., (Copyright © 2024, Baydoun et al.)
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- 2024
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21. Chemical Composition, Antioxidant Capacity, and Anticancerous Effects against Human Lung Cancer Cells of a Terpenoid-Rich Fraction of Inula viscosa .
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Seglab F, Abou Assali M, AlYafei T, Hassan H, Pinto DCGA, Baydoun S, Al Thani AA, and Shaito AA
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Inula viscosa is a widely used plant in traditional Mediterranean and Middle Eastern medicine for various illnesses. I. viscosa has been shown to have anticancer effects against various cancers, but its effects against lung cancer have been under limited investigation. At the same time, I. viscosa is rich in terpenoids whose anti-lung cancer effects have been poorly investigated. This study aimed to examine the potential anticancer properties of methanolic and aqueous extracts of stems and leaves of I. viscosa and its terpenoid-rich fraction against human lung cancer A549 cells. Results showed that the methanolic extracts of I. viscosa had significantly higher polyphenol and flavonoid content and radical scavenging capacity than the aqueous extracts. In addition, leaves methanolic extracts (IVLM) caused the highest reduction in viability of A549 cells among all the extracts. IVLM also reduced the viability of human ovarian SK-OV-3, breast MCF-7, liver HepG2, and colorectal HCT116 cancer cells. A terpenoid-rich I. viscosa fraction (IVL DCM), prepared by liquid-liquid separation of IVLM in dichloromethane (DCM), displayed a substantial reduction in the viability of A549 cells (IC
50 = 27.8 ± 1.5 µg/mL at 48 h) and the panel of tested cancerous cell lines but was not cytotoxic to normal human embryonic fibroblasts (HDFn). The assessment of IVL DCM phytochemical constituents using GC-MS analysis revealed 21 metabolites, highlighting an enrichment in terpenoids, such as lupeol and its derivatives, caryophyllene oxide, betulin, and isopulegol, known to exhibit proapoptotic and antimetastatic functions. IVL DCM also showed robust antioxidant capacity and decent polyphenol and flavonoid contents. Furthermore, Western blotting analysis indicated that IVL DCM reduced proliferation (reduction of proliferation marker Ki67 and induction of proliferation inhibitor proteins P21 and P27), contaminant with P38 MAP kinase activation, and induced the intrinsic apoptotic pathway (P53/BCL2/BAX/Caspase3/PARP) in A549 cells. IVL DCM also reduced the migration of A549 cells, potentially by reducing FAK activation. Future identification of anticancer metabolites of IVL DCM, especially terpenoids, is recommended. These data place I. viscosa as a new resource of herbal anticancer agents.- Published
- 2024
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22. The Antioxidant Potential and Anticancer Activity of Halodule uninervis Ethanolic Extract against Triple-Negative Breast Cancer Cells.
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Wehbe N, Badran A, Baydoun S, Al-Sawalmih A, Maresca M, Baydoun E, and Mesmar JE
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Natural remedies have been indispensable to traditional medicine practices for generations, offering therapeutic solutions for various ailments. In modern times, these natural products continue to play a pivotal role in the discovery of new drugs, especially for cancer treatment. The marine ecosystem offers a wide range of plants with potential anticancer activities due to their distinct biochemical diversity and adaptation to extreme situations. The seagrass Halodule uninervis is rich in diverse bioactive metabolites that bestow the plant with various pharmacological properties. However, its anticancer activity against invasive triple-negative breast cancer (TNBC) is still poorly investigated. In the present study, the phytochemical composition of an ethanolic extract of H. uninervis (HUE) was screened, and its antioxidant potential was evaluated. Moreover, the anticancer potential of HUE against MDA-MB-231 cells was investigated along with the possible underlying mechanisms of action. Our results showed that HUE is rich in diverse phytochemicals that are known for their antioxidant and anticancer effects. In MDA-MB-231 cells, HUE targeted the hallmarks of cancer, including cell proliferation, adhesion, migration, invasion, and angiogenesis. The HUE-mediated anti-proliferative and anti-metastatic effects were associated with the downregulation of the proto-oncogenic STAT3 signaling pathway. Taken together, H. uninervis could serve as a valuable source for developing novel drugs targeting TNBC.
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- 2024
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23. Surveying and mapping cereals and legumes wild relatives in Mount Hermon (Bekaa, Lebanon).
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Sayde E, Chalak L, Baydoun S, Shehadeh A, El Zein H, Al Beyrouthy J, and Yazbek M
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Crop Wild Relatives (CWR) should be highly prioritized, monitored, and conserved as they have an immense effect on sustainability and livelihood. In this study we aim to survey and map cereal and legume wild relatives of Fabaceae and Poaceae families. Mount Hermon, Bekaa side, Lebanon. A set of 46 CWR species were targeted based on desk selection analysis and prioritization by the International Center for Agricultural Research in Dry Areas genebank for their potential importance in breeding programs. A botanical survey of 17 sites of the various habitats of Mount Hermon was performed during April-June 2021 using a systematic transect/quadrate sampling method. Recorded genera and species were accurately georeferenced and then mapped with the DIVA-GIS program. In total, 854 occurrences were observed belonging to 34 species of Fabaceae and 12 species of Poaceae. High H' Shannon diversity values were recorded in three sites (Al Fakiaa, Sham El Hafour and Ain Ata- al Berke) of the Mount with values ranking between 2.45 and 2.83. This was confirmed by the richness distribution maps of genera and species. Richness distribution maps provide relevant clues on candidate sites for high concentrations of each of the species under study. At least the three sites, hosting 87% of the surveyed CWR's species, can be considered for further in situ conservation actions., Competing Interests: The authors have no conflicts of interest to declare., (© 2024 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.)
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- 2024
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24. Fractionation and phytochemical composition of an ethanolic extract of Ziziphus nummularia leaves: antioxidant and anticancerous properties in human triple negative breast cancer cells.
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Abdallah R, Shaito AA, Badran A, Baydoun S, Sobeh M, Ouchari W, Sahri N, Eid AH, Mesmar JE, and Baydoun E
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Natural products have long been utilized in traditional medicine as remedies to improve health and treat illnesses, and have had a key role in modern drug discovery. Recently, there has been a revived interest in the search for bioactives from natural sources as alternative or complementary modalities to synthetic medicines; especially for cancer treatment, which incidence and mortality rates are on the rise worldwide. Ziziphus nummularia has been widely used in traditional medicine for the treatment of various diseases. Its traditional uses and numerous ethnopharmacological properties may be attributed to its richness in bioactive metabolites. However, its phytochemical composition or chemopreventive effects against the aggressive triple-negative breast cancer (TNBC) are still poorly explored. Here, phytochemical composition of an ethanolic extract of Z. nummularia leaves (ZNE) and its chromatographically isolated fractions was identified both qualitatively by spectrophotometric assays and analytically by HPLC-PDA-MS/MS. The anti-proliferative effects of ZNE were tested in several cancer cell lines, but we focused on its anti-TNBC effects since they were not explored yet. The anti-cancerous potential of ZNE and its fractions was tested in vitro in MDA-MB-231, a TNBC cell line. Results showed that ZNE and its Fraction 6 (F6) reduced the viability of MDA-MB-231 cells. F6 decreased MDA-MB-231 viability more than crude ZNE or its other fractions. ZNE and F6 are rich in phytochemicals and HPLC-PDA-MS/MS analysis identified several metabolites that were previously reported to have anti-cancerous effects. Both ZNE and F6 showed potent antioxidant capacity in the DPPH assay, but promoted reactive oxygen species (ROS) production in MDA-MB-231 cells; an effect which was blunted by the antioxidant N-acetyl cysteine (NAC). NAC also blunted ZNE- and F6-induced reduction in TNBC cell viability. We also demonstrated that ZNE and F6 induced an arrest of the cell cycle, and triggered apoptosis- and autophagy-mediated cell death. ZNE and F6 inhibited metastasis-related cellular processes by modifying cell migration, invasion, and adhesion. Taken together, our findings reveal that Z . nummularia is rich in phytochemicals that can attenuate the malignant phenotype of TNBC and may offer innovative avenues for the discovery of new drug leads for treatment of TNBC and other cancers., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. The author(s) declared that they were an editorial board member of Frontiers, at the time of submission. This had no impact on the peer review process and the final decision., (Copyright © 2024 Abdallah, Shaito, Badran, Baydoun, Sobeh, Ouchari, Sahri, Eid, Mesmar and Baydoun.)
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- 2024
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25. Criteria Associated with Treatment Decisions in Juvenile Idiopathic Arthritis with a Focus on Ultrasonography: Results from the JIRECHO Cohort.
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Baydoun S, Jousse-Joulin S, Saraux A, Dusser-Benesty P, Borocco C, Galeotti C, Von Scheven A, Hofer M, Bader-Meunier B, Aeschlimann F, Breton S, Sparsa L, Carbasse A, Mouterde G, Rossi-Semerano L, and Devauchelle-Pensec V
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Background: The treatment of children with juvenile idiopathic arthritis (JIA) to prevent disability is a major challenge in paediatric rheumatology. The presence of synovitis, which is difficult to detect in children, is associated with structural damage. Musculoskeletal ultrasonography (MSUS) can be used in patients with JIA to reveal subclinical synovitis., Objective: The primary aim was to determine whether the use of MSUS was associated with therapeutic modification in patients with JIA. The secondary aim was to identify other factors associated with therapeutic decisions., Methods: We conducted an observational study based on the JIRECHO multi-centre cohort, which was developed to provide a systematic MSUS follow-up for patients with JIA. Follow-up occurred every 6 months and included clinical and MSUS examinations. We included children who underwent MSUS of the elbows, wrists, second metacarpophalangeal joints, knees and ankles, which was performed by expert sonographers. Clinical and biological data, disease activity scores and information on therapeutics were collected., Results: A total of 185 visits concerning 112 patients were recorded. Three groups were defined according to the therapeutic decision: escalation (22%, n = 40), de-escalation (14%, n = 26) or stable (64%, n = 119). In the "therapeutic escalation" group: the presence of ultrasonographic synovitis in B-mode and the presence of grade 2 or 3 synovitis in B-mode were not significantly more frequent than in the "stable therapeutic or de-escalation" group (80% versus 65%, p = 0.06; 33% versus 19%, p = 0.06), and the patient's and physician's visual analogue scale (VAS) scores, the clinical JADAS and the C-reactive protein level were significantly higher, but only physician's VAS score remained in the model of logistic regression. In the "therapeutic de-escalation" group: there was no difference in the presence of US synovitis compared with the "stable therapeutic or escalation" group (62% versus 69%, p = 0.48)., Conclusion: Even though US synovitis tended to be more frequent in patients with therapeutic escalation, the study did not show that the presence of synovitis in MSUS was statistically associated with therapeutic modifications in patients with JIA. Treatment remained stable despite the presence of US synovitis., (© 2022. The Author(s).)
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- 2023
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26. Performance Benchmark Metrics and Clinicopathologic Outcomes of MRI-Guided Breast Biopsies: A Systematic Review and Meta-Analysis.
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Özcan BB, Yan J, Xi Y, Baydoun S, Scoggins ME, and Doğan BE
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Objective: To determine key performance metrics of magnetic resonance imaging (MRI)-guided breast biopsies (MRGB) to help identify reference benchmarks., Materials and Methods: We identified studies reporting MRGB results up to 04.01.2021 in the Embase database, Ovid Medline (R) Process, Other Non-Indexed Citations, Ovid Medline (R) and completed a PRISMA checklist and sources of bias (QUADAS-2). The inclusion criteria were English language, available histopathological outcomes, or at least one imaging follow-up after biopsy. A random intercept logistic regression model was used to pool rates. Between-study heterogeneity was quantified by the I2 statistic., Results: A total of 11,215 lesions in 50 articles were analyzed. The technical success rate was 99.10% [95% confidence interval (CI): 97.89-99.62%]. The MRI indications were staging in 1,496 (28.05%, 95% CI: 26.85-29.28%), screening in 1,427 (26.76%, 95% CI: 25.57-27.97%), surveillance in 1,027 (19.26%, 95% CI: 18.21-20.34%), diagnostic in 1,038 (19.46%, 95% CI: 18.41-20.55%), unknown primary in 74 (1.39%, 95% CI: 1.09-1.74%), and other in 271 (5.08%, 95% CI: 4.51-5.71%). Histopathology was benign in 65.06% (95% CI: 59.15-70.54%), malignant in 29.64% (95% CI: 23.58-36.52%) and high risk in 16.69% (95% CI: 9.96-26.64%). Detection of malignancy was significantly lower in those patients who underwent MRI for screening purposes (odds ratio 0.47, 95% CI: 0.25-0.87; p = 0.02), while mass lesions were more likely to yield malignancy compared to non-mass and foci [27.39% vs 11.36% (non-mass),18.03% (foci); p<0.001]. Surgical upgrade to invasive cancer occurred in 12.24% of ductal carcinoma in situ (95% CI: 7.76-18.77%) and malignancy in 15.14% of high-risk lesions (95% CI: 10.69-21.17%). MRI follow-up was performed in 1,651 (20.92%) patients after benign results [median=25 months (range: 0.4-117)]. Radiology-pathology discordance (2.48%, 95% CI: 1.62-3.77%), false negative after a benign-concordant biopsy (0.75%, 95% CI: 0.34-1.62%) and biopsy complications (2.36%, 95% CI: 2.03-2.72%) were rare., Conclusion: MRGB is a highly accurate minimally-invasive diagnostic technique with low false-negative and complication rates. MRI indication and lesion type should be considered when evaluating the performance of institutional MRGB programs., Competing Interests: Conflict of Interest: No conflict of interest was declared by the authors., (©Copyright 2023 by the the Turkish Federation of Breast Diseases Societies / European Journal of Breast Health published by Galenos Publishing House.)
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- 2023
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27. Ethnobotanical survey of medicinal wild plants in the Shouf Biosphere Reserve, Lebanon.
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Hani N, Baydoun S, Nasser H, Ulian T, and Arnold-Apostolides N
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- Male, Female, Humans, Phytotherapy methods, Lebanon, Health Knowledge, Attitudes, Practice, Ethnobotany, Surveys and Questionnaires, Plants, Medicinal
- Abstract
Background: Medicinal plants and associated traditional knowledge play a vital role in supporting the livelihoods and resilience of indigenous communities. This ethnobotanical survey aims to identify medicinal plants used by the local communities of the Shouf Biosphere Reserve of Lebanon (SBR) and document the associated traditional knowledge., Methodology: Focus groups and personal interviews with 133 informants of community members of 22 villages of SBR were performed during 2019-2022. Informants were selected using purposive sampling techniques based on their knowledge of medicinal plants and experience in traditional herbal medicine. Interviews were conducted using a semi-structured questionnaire through field visits., Results: Informants were equally represented by females and males and had different demographic characteristics, and the main source of knowledge was ancestral. A total of 184 medicinal plant species belonging to 57 families were documented. The predominant families were Asteraceae (31 spp.), Lamiaceae (14 spp.), and Rosaceae (14 spp.). Leaves (23%) were the plant part most used. Decoction (45%) was the predominant preparation method, while internal (oral) use (47%) was the most frequent administration mean. Berberis libanotica, Dittrichia viscosa, and Daucus carota achieved the highest scores of frequency of citation (FC), relative frequency of citation (RFC), use value (UV), and fidelity level (FL). Furthermore, diseases and ailments of gastrointestinal tract were the category most treated., Conclusions: Findings revealed a rich and diverse list of medicinal plants with associated traditional knowledge still actively used to treat a wide range of diseases. Future phytochemical and pharmacological studies are recommended to determine the efficacy and safety of plant species used. The management body of the SBR and all related authorities are invited to continue their conservation efforts to protect such rich biocultural heritage., (© 2022. The Author(s).)
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- 2022
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28. Ethanolic extract of Origanum syriacum L. leaves exhibits potent anti-breast cancer potential and robust antioxidant properties.
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Mesmar J, Abdallah R, Hamade K, Baydoun S, Al-Thani N, Shaito A, Maresca M, Badran A, and Baydoun E
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Background: Breast cancer (BC) is the second most common cancer overall. In women, BC is the most prevalent cancer and the leading cause of cancer-related mortality. Triple-negative BC (TNBC) is the most aggressive BC, being resistant to hormonal and targeted therapies., Hypothesis/purpose: The medicinal plant Origanum syriacum L. is a shrubby plant rich in bioactive compounds and widely used in traditional medicine to treat various diseases. However, its therapeutic potential against BC remains poorly investigated. In the present study, we screened the phytochemical content of an ethanolic extract of O. syriacum (OSEE) and investigated its anticancer effects and possible underlying mechanisms of action against the aggressive and highly metastatic human TNBC cell line MDA-MB-231., Methods: MTT, trans-well migration, and scratch assays were used to assess cell viability, invasion, or migration, respectively. Antioxidant potential was evaluated in vitro using the DPPH radical-scavenging assay and levels of reactive oxygen species (ROS) were assessed in cells in culture using DHE staining. Aggregation assays were used to determine cell-cell adhesion. Flow cytometry was used to analyze cell cycle progression. Protein levels of markers of apoptosis (BCL-2, pro-Caspase3, p53), proliferation (p21, Ki67), cell migration, invasion, or adhesion (FAK, E-cadherin), angiogenesis (iNOS), and cell signaling (STAT3, p38) were determined by immunoblotting. A chorioallantoic Membrane (CAM) assay evaluated in ovo angiogenesis., Results: We demonstrated that OSEE had potent radical scavenging activity in vitro and induced the generation of ROS in MDA-MB-231 cells, especially at higher OSEE concentrations. Non-cytotoxic concentrations of OSEE attenuated cell proliferation and induced G
0 /G1 cell cycle arrest, which was associated with phosphorylation of p38 MAPK, an increase in the levels of tumor suppressor protein p21, and a decrease of proliferation marker protein Ki67. Additionally, only higher concentrations of OSEE were able to attenuate inhibition of proliferation induced by the ROS scavenger N-acetyl cysteine (NAC), indicating that the anti-proliferative effects of OSEE could be ROS-dependent. OSEE stimulated apoptosis and its effector Caspase-3 in MDA-MB-231 cells, in correlation with activation of the STAT3/p53 pathway. Furthermore, the extract reduced the migration and invasive properties of MDA-MB-231 cells through the deactivation of focal adhesion kinase (FAK). OSEE also reduced the production of inducible nitric oxide synthase (iNOS) and inhibited in ovo angiogenesis., Conclusion: Our findings reveal that OSEE is a rich source of phytochemicals and has robust anti-breast cancer properties that significantly attenuate the malignant phenotype of MD-MB-231 cells, suggesting that O. syriacum may not only act as a rich source of potential TNBC therapeutics but may also provide new avenues for the design of novel TNBC drugs., Competing Interests: NA was employed by the company Barzan Holdings. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Mesmar, Abdallah, Hamade, Baydoun, Al-Thani, Shaito, Maresca, Badran and Baydoun.)- Published
- 2022
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29. A triangulated perspective for understanding CAM use in Lebanon: a qualitative study.
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Jaafar Z, Ayoub J, Hamadeh R, Baydoun S, Honein-AbouHaidar G, Banna J, Alameddine M, and Naja F
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- Adult, Attitude of Health Personnel, Health Personnel, Humans, Lebanon, Qualitative Research, Complementary Therapies
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Background: Existing evidence marked a prevalent use of Complementary and Alternative Medicine (CAM) therapies in Lebanon that is concomitant with low rates of disclosure to health care providers and limited knowledge among the general public of safety and side effects of CAM use., Objectives: To examine the perspectives of Lebanese CAM users, CAM providers, and health care providers (HCPs) regarding their understanding of CAM and of the Push and Pull factors that drive its use., Methods: A qualitative research study was conducted using in-depth interviews, targeting Lebanese adults (CAM users; 18-65 years) (n=14), CAM providers such as yoga instructors, owners of CAM product outlets, herbalists, and religious figures (n=13); and HCPs including physicians, nurses, dietitians, and pharmacists (n=14). The topic guide covered, in addition to the understanding of CAM, the Push and Pull factors driving CAM use. The adults were recruited by convenient sampling, and CAM providers and HCPs using a purposive sampling approach. Interviews were audiotaped, transcribed, and translated into English. Analysis was performed using a qualitative thematic approach. Similarities and differences in the perceptions of the participants with regards to factors that influence CAM use were charted and contrasted, using a triangulated approach., Results: The three study groups exhibited a similar understanding of CAM, referring to non-conventional therapies used to prevent/treat diseases or to enhance wellbeing. CAM users and CAM providers identified "distrust in HCPs", "lack of patient-centered care in CM", and "limitations and side effects of CM" as important Push factors. All study groups highlighted the limited CAM knowledge of HCPs as a main reason for the lack of patient-centered care. All three groups also underscored the affordability and the social and cultural support for CAM as main enablers of its prevalent use. Unlike HCPs who were skeptical about the safety and effectiveness of CAM, CAM users and CAM providers indicated that most of CAM therapies are safe and efficient., Conclusions: The triangulation of perspectives (CAM users, CAM providers, and HCPs) in this study allowed a comprehensive appraisal of CAM use and its drivers. Improving the HCPs' CAM-related knowledge, promoting patient-centered care and fostering an open dialogue between HCPs and CAM providers are among the recommendations of the study., (© 2022. The Author(s).)
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- 2022
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30. Origanum syriacum L. Attenuates the Malignant Phenotype of MDA-MB231 Breast Cancer Cells.
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AlKahlout A, Fardoun M, Mesmar J, Abdallah R, Badran A, Nasser SA, Baydoun S, Kobeissy F, Shaito A, Iratni R, Muhammad K, Baydoun E, and Eid AH
- Abstract
Breast cancer is the leading cause of cancer-related deaths among women. Among breast cancer types, triple negative breast cancer (TNBC) is the most aggressive, and is resistant to hormonal and chemotherapeutic treatments. As such, alternative approaches that may provide some benefit in fighting this debilitating pathology are critically needed; hence the utilization of herbal medicine. Origanum syriacum L., one of the most regularly consumed plants in the Mediterranean region, exhibits antiproliferative effect on several cancer cell lines. However, whether this herb modulates the malignant phenotype of TNBC remains poorly investigated. Here, we show that in MDA-MB-231, a TNBC cell line, Origanum syriacum L. aqueous extract (OSE) inhibited cellular viability, induced autophagy determined by the accumulation of lipidized LC3 II, and triggered apoptosis. We also show that OSE significantly promoted homotypic cell-cell adhesion while it decreased cellular migration, adhesion to fibronectin, and invasion of MDA-MB-231 cells. This was supported by decreased activity of focal adhesion kinase (FAK), reduced α2 integrin expression, and downregulation of secreted PgE
2 , MMP2 and MMP-9, in OSE-treated cells. Finally, we also show that OSE significantly inhibited angiogenesis and downregulated the level of nitric oxide (NO) production. Our findings demonstrate the ability of OSE to attenuate the malignant phenotype of the MDA-MB-231 cells, thus presenting Origanum syriacum L. as a promising potential source for therapeutic compounds for TNBC., Competing Interests: Author AA was employed by Kurome Therapeutics. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 AlKahlout, Fardoun, Mesmar, Abdallah, Badran, Nasser, Baydoun, Kobeissy, Shaito, Iratni, Muhammad, Baydoun and Eid.)- Published
- 2022
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31. Diagnostic Performance of FDG-PET/CT Scan as Compared to US-Guided FNA in Prediction of Axillary Lymph Node Involvement in Breast Cancer Patients.
- Author
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Assi HI, Alameh IA, Khoury J, Bou Zerdan M, Akiki V, Charafeddine M, El Saheb GI, Sukhon F, Sbaity E, Baydoun S, Shabb N, Berjawi G, and Haidar MB
- Abstract
Purpose: The aim of this study was to evaluate the diagnostic ability of 2-deoxy-2-[fluorine-18]fluoro-d-glucose (
18 F-FDG) PET/non-contrast CT compared with those of ultrasound (US)-guided fine needle aspiration (FNA) for axillary lymph node (ALN) staging in breast cancer patients., Patients and Methods: Preoperative18 F-FDG PET/non-contrast CT was performed in 268 women with breast cancer, as well as ALN dissection or sentinel lymph node (SLN) biopsy. One hundred sixty-four patients underwent US-guided FNA in combination with18 F-FDG PET/CT. The diagnostic performance of each modality was evaluated using histopathologic assessments as the reference standard. The receiver operating characteristic (ROC) curves were compared to evaluate the diagnostic ability of several imaging modalities., Results: Axillary18 F-FDG uptake was positive in 180 patients, and 125 patients had axillary metastases according to the final pathology obtained by ALN dissection and/or SLN dissection. Of the patients with positive18 F-FDG uptake in the axilla, 21% had false-positive results, whereas 79% were truly positive. Eighty-eight patients had negative18 F-FDG uptake in the axilla, among which 25% were false-negative.18 F-FDG-PET/CT had a sensitivity of 86.59% and a specificity of 63.46% in the assessment of ALN metastasis; on the other hand, US-guided FNA had a sensitivity of 91.67% and a specificity of 87.50%. The mean primary cancer size ( p = 0.04) and tumor grade ( p = 0.04) in combination were the only factors associated with the accuracy of18 F-FDG PET/CT for detecting metastatic ALNs., Conclusion: The diagnostic performance of18 F-FDG PET/CT for the detection of axillary node metastasis in breast cancer patients was not significantly different from that of US-guided FNA. Combining18 F-FDG PET/CT with US-guided FNA or SLN biopsy could improve the diagnostic performance compared to18 F-FDG PET/CT alone., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2021 Assi, Alameh, Khoury, Bou Zerdan, Akiki, Charafeddine, El Saheb, Sukhon, Sbaity, Baydoun, Shabb, Berjawi and Haidar.)- Published
- 2021
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32. Development of national dietary and lifestyle guidelines for pregnant women in Lebanon.
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Naja F, Ayoub J, Baydoun S, Nassour S, Zgheib P, and Nasreddine L
- Subjects
- Child, Diet, Female, Humans, Lebanon, Maternal Nutritional Physiological Phenomena, Pregnancy, Life Style, Pregnant People
- Abstract
Although a number of international diet and lifestyle guidelines during pregnancy (DLGP) exist in the literature, contextualization to low- and middle-income settings is less common. The aim of this study was to present the Lebanese DLGP and to describe the process followed for their development. A mixed-method approach was used including a review and synthesis of existing international DLGP and a consensus building nominal group technique (NGT) with a multidisciplinary group of experts (n = 11). During the meeting, participants identified the themes of the guidelines, formulated the wording of each themes' guideline and translated the guidelines to the Arabic language. Consensus was defined as an agreement of 80%. Reviewing the literature, a list of 17 main topics were found to be common themes for the DLGP. For the Lebanese DLGP, participants in the NGT meeting selected seven themes from this list: gestational weight gain, diet diversity, hydration, food safety, harmful foods, physical activity and breastfeeding. In addition, the group formulated three themes based on merging/modifying existing themes: supplementation, alcohol and smoking and religious fasting. Two context-specific new themes emerged: wellbeing and nutrition resilience. For each of the identified themes, the group agreed upon the wording of its guidelines and description. This study is the first from the Eastern Mediterranean Region to develop through consensus building, context and culture-specific dietary and lifestyle guidelines for pregnant women. Putting maternal nutrition at the heart of tackling malnutrition and its detrimental health outcomes is a core investment for a better maternal and child health., (© 2021 The Authors. Maternal & Child Nutrition published by John Wiley & Sons Ltd.)
- Published
- 2021
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33. Choice of imaging method in the work-up of non-calcified breast lesions identified on tomosynthesis screening.
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Porembka JH, Baydoun S, Mootz AR, Xi Y, and Dogan BE
- Subjects
- Aged, Biopsy, Breast pathology, Breast Neoplasms pathology, False Positive Reactions, Female, Humans, Mental Recall, Middle Aged, Reference Standards, Research, Retrospective Studies, Breast diagnostic imaging, Breast Neoplasms diagnostic imaging, Early Detection of Cancer methods, Mammography methods, Ultrasonography
- Abstract
Purpose: The purpose of this study is to compare the use of diagnostic mammography, diagnostic mammography with ultrasound, and ultrasound alone in the evaluation of recalled non-calcified lesions from screening mammography with digital breast tomosynthesis (DBT)., Methods: We performed a retrospective review of recalled non-calcified lesions that included architectural distortion, asymmetry, focal asymmetry and mass from screening DBT from January 2014 to December 2016. Electronic health records were reviewed for imaging evaluations, findings and histopathology results., Results: Of 266 non-calcified lesions in 247 women, masses were significantly more likely to be evaluated with ultrasound alone compared to diagnostic mammography with ultrasound than all other recalled finding types (OR = 7.63; 95 %CI [4.17-13.97]; p < 0.01). Architectural distortions were more likely to be assigned a BI-RADS 4 or 5 on the diagnostic evaluation than all other lesion types (OR = 7.71; 95 %CI [2.82-21.04]; p < 0.01). Masses were more likely to be true lesions (90 %; 111/124) compared to 40 % (23/57) of focal asymmetries (OR = 11.41; 95 %CI [4.05-32.14]; p < 0.01) and 24 % (16/67) of asymmetries (OR = 27.01; 95 %CI [9.41-77.48]; p < 0.01). No significant difference was noted in the malignant versus benign biopsy outcomes among the recalled DBT lesion types (p = 0.71)., Conclusion: Recalled masses from screening DBT were more likely to be worked up with ultrasound alone compared to all other non-calcified lesion types and more likely to represent true lesions on diagnostic evaluation. Recalled asymmetries and focal asymmetries were more likely to be worked up with either diagnostic mammography with ultrasound or diagnostic mammography alone., (Copyright © 2020 Elsevier B.V. All rights reserved.)
- Published
- 2020
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34. The Role of Epac in Cancer Progression.
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Wehbe N, Slika H, Mesmar J, Nasser SA, Pintus G, Baydoun S, Badran A, Kobeissy F, Eid AH, and Baydoun E
- Subjects
- Apoptosis physiology, Cell Proliferation physiology, Cyclic AMP metabolism, Cyclic AMP-Dependent Protein Kinases metabolism, Disease Progression, Humans, Neoplasms physiopathology, Signal Transduction physiology, rap1 GTP-Binding Proteins metabolism, Guanine Nucleotide Exchange Factors metabolism, Guanine Nucleotide Exchange Factors physiology, Neoplasms metabolism
- Abstract
Cancer continues to be a prime contributor to global mortality. Despite tremendous research efforts and major advances in cancer therapy, much remains to be learned about the underlying molecular mechanisms of this debilitating disease. A better understanding of the key signaling events driving the malignant phenotype of cancer cells may help identify new pharmaco-targets. Cyclic adenosine 3',5'-monophosphate (cAMP) modulates a plethora of biological processes, including those that are characteristic of malignant cells. Over the years, most cAMP-mediated actions were attributed to the activity of its effector protein kinase A (PKA). However, studies have revealed an important role for the exchange protein activated by cAMP (Epac) as another effector mediating the actions of cAMP. In cancer, Epac appears to have a dual role in regulating cellular processes that are essential for carcinogenesis. In addition, the development of Epac modulators offered new routes to further explore the role of this cAMP effector and its downstream pathways in cancer. In this review, the potentials of Epac as an attractive target in the fight against cancer are depicted. Additionally, the role of Epac in cancer progression, namely its effect on cancer cell proliferation, migration/metastasis, and apoptosis, with the possible interaction of reactive oxygen species (ROS) in these phenomena, is discussed with emphasis on the underlying mechanisms and pathways.
- Published
- 2020
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35. Antihypertensive Indigenous Lebanese Plants: Ethnopharmacology and a Clinical Trial.
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Samaha AA, Fawaz M, Salami A, Baydoun S, and Eid AH
- Subjects
- Adult, Aged, Antihypertensive Agents chemistry, Ethnopharmacology, Female, Humans, Male, Middle Aged, Antihypertensive Agents therapeutic use, Hypertension drug therapy, Mentha chemistry, Plant Extracts therapeutic use, Plants, Medicinal chemistry
- Abstract
Hypertension is highly prevalent among the Lebanese adult population and is indeed the major cause of mortality in Lebanon. Traditional use of antihypertensive medicinal plants has long been practiced. The aim of this study is to document this traditional knowledge and clinically test the antihypertensive capacity of three of the most commonly used wild plant species Mentha longifolia , Viola odorata and Urtica dioica . Ethno-pharmacological data was collected by personal interviews with herbalists and traditional healers using a semi structured survey questionnaire and assessing relative frequency of citation (RFC). The clinical study was conducted by a randomized, blind, placebo-controlled trial in 29 subjects with mild hypertension distributed in four groups, three plant extract treatments and one placebo. Systolic (SBP) and diastolic blood pressures (DBP) as well as mean arterial blood pressures (MAP) were monitored at weeks 4, 8, 12 and 16 during the treatment with 300 mL/day of plant extract. Results showed that M. longifolia , U. dioica and V. odorata exhibited the highest values of RCF (0.95) followed by Allium ampeloprasum (0.94), Apium graveolens (0.92) and Crataegus azarolus (0.90). The clinical trial revealed dose- and duration-dependent significant reductions in SBP, DBP and MAP of subjects treated with M. longifolia , U. dioica or V. odorata . Our findings indicate that extracts of these plants present an effective, safe and promising potential as a phyto-therapuetical approach for the treatment of mild hypertension. More research on the phytochemistry, pharmacological effects and the underlying mechanisms is necessary.
- Published
- 2019
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36. Is Ductography Still Warranted in the 21st century?
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Baydoun S, Gonzalez P, Whitman GJ, Dryden M, Xi Y, and Dogan B
- Subjects
- Adult, Aged, Aged, 80 and over, Breast Diseases diagnostic imaging, Breast Neoplasms diagnostic imaging, Breast Neoplasms pathology, Contrast Media, Female, Humans, Image-Guided Biopsy, Magnetic Resonance Imaging methods, Mammography statistics & numerical data, Middle Aged, Retrospective Studies, Sensitivity and Specificity, Ultrasonography, Mammary, Young Adult, Breast Diseases pathology, Mammography methods, Nipple Discharge diagnostic imaging
- Abstract
Objective: To determine the utility of ductography in conjunction with mammography and ultrasound in patients with pathologic nipple discharge, and the incremental role of MRI after triple-modality evaluation., Materials and Methods: We retrospectively reviewed the medical records of patients who had presented with pathologic nipple discharge and had undergone mammography and/or ultrasound and ductography between January 1, 2005, and October 31, 2010. We tested the diagnostic sensitivity, specificity and accuracy of combined triple-modality evaluation as well as of MRI performed in addition to these imaging techniques. We used the gold standard of image-guided biopsies, surgical excision, or long-term clinical and imaging follow-up., Results: Among 94 study patients, benign papillomas were identified in 42 (44.7%), abscess in one (1%), duct ectasia in four (4.3%), and malignancy (invasive ductal carcinoma or ductal carcinoma in situ) or high-risk lesion (atypical ductal hyperplasia) in 10 (10.6%). Forty-six patients (49%) underwent surgical excision; 89.1% of which had presurgical planning with ductography. In 35 (37.2%) with negative imaging, resolution of nipple discharge was confirmed on median clinical and imaging follow-up of 36 months. Two patients with negative imaging were lost to follow-up. Sensitivity, specificity, PPV, and NPV for accurately demonstrating the etiology of pathologic nipple discharge were 13%, 97%, 89%, and 37% respectively for mammography; 73%, 97%, 98%, and 64% respectively for ultrasound; 76%, 72%, 84%, and 61% respectively for ductography; 86%, 70%, 85%, and 72% respectively for combined ultrasound and ductography; and 75%, 100%, 100% and 67% respectively for DCE-MRI., Conclusion: The combination of mammography, ultrasound and ductography is highly accurate for identifying the etiology of pathologic nipple discharge. DCE-MRI can be used as an alternate to ductography if necessary., (© 2019 Wiley Periodicals, Inc.)
- Published
- 2019
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37. Levosimendan Prevents Memory Impairment Induced by Diabetes in Rats: Role of Oxidative Stress.
- Author
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Rababa'h AM, Alzoubi KH, Baydoun S, and Khabour OF
- Subjects
- Animals, Male, Maze Learning drug effects, Memory Disorders etiology, Rats, Rats, Wistar, Diabetes Mellitus, Experimental complications, Memory drug effects, Oxidative Stress drug effects, Phosphodiesterase 3 Inhibitors pharmacology, Simendan pharmacology
- Abstract
Background: Levosimendan is a calcium sensitizer and phosphodiesterase inhibitor that has potent antioxidant and anti-inflammatory activities., Objectives: The aim of the current study is to investigate the potential protective effect of levosimendan on learning and memory impairment induced by diabetes., Methods: Adult Wister rats were randomly divided into four groups (n=15 rats/group): control, levosimendan, streptozotocin (STZ) induced diabetes, and levosimendan-STZ diabetes. Upon confirmation of the success of the STZ diabetic model, intraperitoneal levosimendan (100µg/kg/week) was administrated to the assigned groups for 4 weeks. Then, the radial arm water maze was used to evaluate spatial learning and memory. Oxidative stress biomarkers and brain-derived neurotrophic factor were evaluated in hippocampal tissues., Results: The results showed that Diabetes Mellitus (DM) impaired both short- and long- term memory (P<0.01), while levosimendan protected the animals from memory impairment. In addition, levosimendan prevented DM-induced reduction in the hippocampal levels of superoxide dismutase and glutathione peroxidase (P<0.05). Moreover, the administration of levosimendan prevented DM-induced increases in hippocampal thiobarbituric acid reactive substances level (P<0.05). Furthermore, levosimendan restored the ratio of reduced/oxidized glutathione (GSH/GSSG) in DM rats to that observed in the control group (P<0.05)., Conclusions: In summary, DM induced learning and memory impairment, and treatment with levosimendan impeded this impairment probably through preventing alterations in the antioxidant system in the hippocampus., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)
- Published
- 2019
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38. Rhus coriaria L. (Sumac) Evokes Endothelium-Dependent Vasorelaxation of Rat Aorta: Involvement of the cAMP and cGMP Pathways.
- Author
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Anwar MA, Samaha AA, Baydoun S, Iratni R, and Eid AH
- Abstract
Rhus coriaria L. (sumac) is widely used in traditional remedies and cuisine of countries of the Mediterranean as well as Central and South-West Asia. Administration of sumac to experimental models and patients with diverse pathological conditions generates multi-faceted propitious effects, including the quality as a vasodilator. Together, the effects are concertedly channeled toward cardiovasobolic protection. However, there is paucity of data on the mechanism of action for sumac's vasodilatory effect, an attribute which is considered to be advantageous for unhealthy circulatory system. Accordingly, we sought to determine the mechanisms by which sumac elicits its vasorelaxatory effects. We deciphered the signaling networks by application of a range of pharmacological inhibitors, biochemical assays and including the quantification of cyclic nucleotide monophosphates. Herein, we provide evidence that an ethanolic extract of sumac fruit, dose-dependently, relaxes rat isolated aorta. The mechanistic effect is achieved via stimulation of multiple transducers namely PI3-K/Akt, eNOS, NO, guanylyl cyclase, cGMP, and PKG. Interestingly, the arachidonic acid pathway (cyclooxygenases), adenylyl cyclase/cAMP and ATP-dependent potassium channels appear to partake in this sumac-orchestrated attenuation of vascular tone. Clearly, our data support the favorable potential cardio-vasculoprotective action of sumac.
- Published
- 2018
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39. Microbial-catalysed derivatization of anti-cancer drug exemestane and cytotoxicity of resulting metabolites against human breast adenocarcinoma cell line (MCF-7) in vitro.
- Author
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Baydoun S, Wahab AT, Bano S, Imad R, and Choudhary MI
- Subjects
- Androstadienes chemistry, Antineoplastic Agents chemistry, Aspergillus niger metabolism, Cell Survival drug effects, Cunninghamella metabolism, Fermentation, Gibberella metabolism, Humans, MCF-7 Cells, Molecular Structure, Androstadienes metabolism, Androstadienes pharmacology, Antineoplastic Agents metabolism, Antineoplastic Agents pharmacology, Breast Neoplasms metabolism
- Abstract
Structural transformation of anticancer drug exemestane (1) with fungi Cunninghamella blakesleeana (ATCC 8688A), Curvularia lunata (ATCC 12017), Aspergillus niger (ATCC 10549), and Gibberella fujikuroi (ATCC 10704) yielded eleven metabolites 2-12, in which 2 and 8 were identified as new. Their structures were characterized as 6-methylene-5α-androstane-3β,16β,17β-triol (2), 17β-hydroxy-6-methyleneandrosta-4-ene-3-one (3), 6α-spiroxirandrost-4-ene-3,17-dione (4), 6-methyleneandrosta-4-ene-3,17-dione (5), 6β,17β-dihydroxyandrost-4-en-3-one (6), 17β-hydroxy-6α-spiroxirandrost-1,4-diene-3-one (7), 17β-hydroxy-6α-hydroxymethylandrosta-1,4-dien-3-one (8), 6α-hydroxymethylandrosta-1,4-diene-3,17-dione (9), 17β-hydroxy-6-methyleneandrosta-1,4-diene-3,16-dione (10), 6α-hydroxy-4-androstene-3,17-dione (11), and 6α-hydroxymethylandrost-4-ene-3,17-dione (12). Substrate 1, and its transformed products were evaluated for their cytotoxicity against breast cancer cell line (MCF-7). Compound 3 was found to be moderately active with an IC
50 of 33.43±4.01μM, in comparison to the standard anti-cancer drug, doxorubicin (IC50 =0.92±0.1μM)., (Copyright © 2016 Elsevier Inc. All rights reserved.)- Published
- 2016
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40. Ethnopharmacological survey of medicinal plants used in traditional medicine by the communities of Mount Hermon, Lebanon.
- Author
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Baydoun S, Chalak L, Dalleh H, and Arnold N
- Subjects
- Adult, Aged, Ethnopharmacology, Female, Humans, Lebanon, Male, Middle Aged, Phytotherapy, Surveys and Questionnaires, Health Knowledge, Attitudes, Practice, Medicine, Traditional, Plants, Medicinal
- Abstract
Ethnopharmacological Relevance: Medicinal plant species in Lebanon are experiencing severe threats because of various environmental conditions, human expansion footprints and recent growing global demand. Organized research and information on indigenous medicinal plants and knowledge have been very limited and little efforts have been invested to develop a complete inventory for native medicinal plants and associated traditional knowledge in the country. Recognized as a key biodiversity area of the Mediterranean Basin, Mount Hermon hosts important richness of medicinal plants that has been traditionally used in treatment of many illnesses since generations. Novel knowledge gathered by the present investigation is important in preserving indigenous knowledge of Mount Hermon community and revitalizing traditional herbal medicines., Material and Methods: Ethnopharmacological information was collected by semi-structured interviews with 53 native informants (herbalists, traditional healers, midwives and local adult villagers) in 13 towns and villages surrounding Mount Hermon. The interviews were conducted through guided field visits and discussion groups whilst collecting plants specimens. Taxonomical identification of plant species was based on the determination keys of the "New Flora of Lebanon and Syria" and specimens were deposited at the herbarium of the Research Center for Environment and Development at Beirut Arab University., Results: The results obtained indicate that 124 plant species of Mount flora are still used in traditional medicine by the local communities as an important source of primary health care and treatment of a wide range of different illnesses. These species belonged to 42 families and 102 genera. Compositae (19 species), Labiatae (18 species), Rosaceae (11) and Umbelliferae (11) formed the dominant families. Informants' Consensus Factor (FIC) analysis revealed that among the 14 illness categories used, respiratory (0.94), gastrointestinal and renal (0.93), genital systems (0.92) had the highest FIC values. The Medicinal Importance (MI) of these systems had also the top positions (16.24, 13.60, 13.18 and 12.09, respectively), whilest Mentha spicata subsp. condensata (Briq.) Greuter et Burdet recorded the heighest Cultural Importance (CI) value at 4.75., Conclusion: This study documents for the first time the ethnopharmacological knowledge regarding part of the Lebanese flora in Mount Hermon. The perpetuity of this knowledge of successive generations can be used as an important tool for the future phytochemical, pharmacological, and toxicological studies, as well as conservation and management of medicinal plants as part of the local cultural heritage., (Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.)
- Published
- 2015
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41. Two heterozygous mutations in NFATC1 in a patient with Tricuspid Atresia.
- Author
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Abdul-Sater Z, Yehya A, Beresian J, Salem E, Kamar A, Baydoun S, Shibbani K, Soubra A, Bitar F, and Nemer G
- Subjects
- Adolescent, Alleles, Amino Acid Sequence, Base Sequence, Case-Control Studies, Cell Line, Tumor, Genes, Reporter, Genotype, Heterozygote, Humans, Luciferases, Male, Molecular Sequence Data, Mutagenesis, Site-Directed, Phenotype, Sequence Analysis, DNA, Transfection, Tricuspid Atresia pathology, Tricuspid Valve pathology, NFATC Transcription Factors genetics, Polymorphism, Single Nucleotide, Transcription, Genetic, Tricuspid Atresia genetics, Tricuspid Valve metabolism
- Abstract
Tricuspid Atresia (TA) is a rare form of congenital heart disease (CHD) with usually poor prognosis in humans. It presents as a complete absence of the right atrio-ventricular connection secured normally by the tricuspid valve. Defects in the tricuspid valve are so far not associated with any genetic locus, although mutations in numerous genes were linked to multiple forms of congenital heart disease. In the last decade, Knock-out mice have offered models for cardiologists and geneticists to study the causes of congenital disease. One such model was the Nfatc1(-/-) mice embryos which die at mid-gestation stage due to a complete absence of the valves. NFATC1 belongs to the Rel family of transcription factors members of which were shown to be implicated in gene activation, cell differentiation, and organogenesis. We have previously shown that a tandem repeat in the intronic region of NFATC1 is associated with ventricular septal defects. In this report, we unravel for the first time a potential link between a mutation in NFATC1 and TA. Two heterozygous missense mutations were found in the NFATC1 gene in one indexed-case out of 19 patients with TA. The two amino-acids changes were not found neither in other patients with CHDs, nor in the control healthy population. Moreover, we showed that these mutations alter dramatically the normal function of the protein at the cellular localization, DNA binding and transcriptional levels suggesting they are disease-causing.
- Published
- 2012
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42. Asymmetry and structural system analysis of the proximal femur meta-epiphysis: osteoarticular anatomical pathology.
- Author
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Samaha AA, Ivanov AV, Haddad JJ, Kolesnik AI, Baydoun S, Arabi MR, Yashina IN, Samaha RA, and Ivanov DA
- Abstract
Background: The human femur is commonly considered as a subsystem of the locomotor apparatus with four conspicuous levels of organization. This phenomenon is the result of the evolution of the locomotor apparatus, which encompasses both constitutional and individual variability. The work therein reported, therefore, underlies the significance of observing anatomical system analysis of the proximal femur meta-epiphysis in normal conditions, according to the anatomic positioning with respect to the right or left side of the body, and the presence of system asymmetry in the meta-epiphysis structure, thus indicating structural and functional asymmetry., Methods: A total of 160 femur bones of both sexes were compiled and a morphological study of 15 linear and angulated parameters of proximal femur epiphysis was produced, thus defining the linear/angulated size of tubular bones. The parameters were divided into linear and angulated groups, while maintaining the motion of the hip joint and transmission of stress to the unwanted parts of the limb. Furthermore, the straight and vertical diameters of the femoral head and the length of the femoral neck were also studied. The angle between the neck and diaphysis, the neck antiversion and angle of rotation of the femoral neck were subsequently measured. Finally, the condylo-diaphyseal angle with respect to the axis of extremity was determined. To visualize the force of intersystem ties, we have used the method of correlation galaxy construction., Results: The absolute numeral values of each linear parameter were transformed to relative values. The values of superfluidity coefficient for each parameter in the right and left femoral bone groups were estimated and Pearson's correlation coefficient has been calculated (> 0.60). Retrospectively, the observed results have confirmed the presence of functional asymmetry in the proximal femur meta-epiphysis. On the basis of compliance or insignificant difference in the confidence interval of the linear parameters, we have revealed, therefore, a discrepancy in values between the neck and the diaphysis angle and the angle of femoral neck rotation (range displacement of confident interval to a greater degree to the right)., Conclusion: This study assessed the observations of a systemic anatomical study encompassing the proximal femur meta-epiphysis behavior in normal condition. This work has significance in medical practice as the theoretical basis is also required in knowing the decreased frequency and degree of severity of osteoarthritic pathologies in the dominant lower extremity.
- Published
- 2008
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43. Biomechanical and system analysis of the human femoral bone: correlation and anatomical approach.
- Author
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Samaha AA, Ivanov AV, Haddad JJ, Kolesnik AI, Baydoun S, Yashina IN, Samaha RA, and Ivanov DA
- Abstract
Background: The human femur is the subsystem of the locomotor apparatus and has got four levels of its organization. This phenomenon is the result of the evolution of the locomotor apparatus, encompassing both constitutional and individual variability. The main aim of this investigation was to study the organization of the human femur as a system of collaborating anatomical structures and, on the basis of system analysis, to define the less stable parameters, whose reorganization can cause the exchange of the system's status., Methods: Twenty-five (25) linear and non-linear (angle) parameters were, therefore, investigated by specially designed tool and caliper on a material of 166 macerated human femurs of adult individuals of both sexes. The absolute values were transformed into the relative one (1.0) by the meaning of the transverse diameter of the femoral diaphysis, and handled with current methods of descriptive statistical analysis. By the value of variance (q2), the results were distributed into four major classes., Results: The belonging of each group to the class was subsequently estimated in grades. According to this method, the excerpt was distributed into four classes as well depending on the total grades. The Pearson's coefficient in each class was calculated between the relative values of the investigated parameters. Two generations of system parameters were subsequently defined and analyzed., Conclusion: This study has derived that the system meaning of each level of the femoral organization is related to the 'shaping effect' of femoral units' functions. Inasmuch as the angular parameters were most instable at this system, they were defined as morphological substrates of the individual variety.
- Published
- 2007
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44. Action spectra and chromophores for lethal photosensitization of Candida albicans by DNA monoadducts formed by 8-methoxypsoralen and monofunctional furocoumarins.
- Author
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Baydoun SA, Gibbs NK, and Young AR
- Subjects
- Candida albicans growth & development, Candida albicans radiation effects, DNA, Fungal radiation effects, Dose-Response Relationship, Radiation, Candida albicans drug effects, DNA, Fungal drug effects, Furocoumarins pharmacology, Methoxsalen pharmacology, Ultraviolet Rays
- Abstract
The red-shift of furocoumarin action spectra, compared with their absorption spectra, has been investigated. An action spectrum for 8-methoxypsoralen (8-MOP) monoadduct formation in the yeast Candida albicans has been determined. The yeast cells were initially exposed to sublethal doses of monochromatic UVA at different wavelengths. Monoadduct formation was monitored by growth inhibition induced, after washing out any unbound 8-MOP, by re-irradiation with a constant second (non-lethal) dose of 330 nm radiation. A comparison between this action spectrum and the absorption spectrum of the dark complex of 8-MOP and DNA was made. In addition, the action spectra of monoadduct formation of five monofunctional compounds including a coumarin derivative have been determined. These action spectra were compared with their respective DNA dark complex absorption spectra. In general, the peaks of the furocoumarin DNA dark complexes show a red-shift when compared with the free furocoumarin molecule and the action spectra show peaks which correspond with the peaks of the dark complexes. Such data indicate that the DNA dark complex is the chromophore for growth inhibition in yeast rather than the free furocoumarin. The similarity of the 8-MOP monoadduct formation action spectrum and 8-MOP action spectra suggests that spectral dependence for the photobiological effects (including the red-shift) is dependent on monoadduct formation rather than, as previously suggested by several authors, crosslink formation. The action spectrum for the coumarin derivative 4-methyl N-ethylpyrrolo (3,2-g) coumarin (PCNEt) correlated well with the free molecule absorption spectrum rather than DNA dark complex indicating that the free molecule is the chromophore.(ABSTRACT TRUNCATED AT 250 WORDS)
- Published
- 1989
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45. An action spectrum for lethal photosensitization of Candida albicans by 8-MOP after low-dose broad-band UV-A irradiation; an action spectrum for 8-MOP 4',5'-monoadducts.
- Author
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Baydoun SA and Young AR
- Subjects
- Candida albicans growth & development, Candida albicans radiation effects, Methoxsalen metabolism, Candida albicans drug effects, Methoxsalen pharmacology, Ultraviolet Rays
- Published
- 1987
- Full Text
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