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Authors = A. Faghih

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12 pages, 1593 KiB  
Article
Genetic and Epigenetic Profiles of Polycystic Ovarian Syndrome and In Vitro Bisphenol Exposure in a Human Granulosa Cell Model
by Reem Sabry, Jenna F. Gallo, Charlie Rooney, Olivia L. M. Scandlan, Ola S. Davis, Shilpa Amin, Mehrnoosh Faghih, Megan Karnis, Michael S. Neal and Laura A. Favetta
Biomedicines 2024, 12(1), 237; https://doi.org/10.3390/biomedicines12010237 - 21 Jan 2024
Cited by 6 | Viewed by 2916
Abstract
Higher levels of bisphenols are found in granulosa cells of women with polycystic ovary syndrome (PCOS), posing the question: Is bisphenol exposure linked to PCOS pathophysiology? Human granulosa cells were obtained from women with and without PCOS, and genes and microRNAs associated with [...] Read more.
Higher levels of bisphenols are found in granulosa cells of women with polycystic ovary syndrome (PCOS), posing the question: Is bisphenol exposure linked to PCOS pathophysiology? Human granulosa cells were obtained from women with and without PCOS, and genes and microRNAs associated with PCOS were investigated. The first phase compared healthy women and those with PCOS, revealing distinct patterns: PCOS subjects had lower 11β-HSD1 (p = 0.0217) and CYP11A1 (p = 0.0114) levels and elevated miR-21 expression (p = 0.02535), elucidating the molecular landscape of PCOS, and emphasizing key players in its pathogenesis. The second phase focused on healthy women, examining the impact of bisphenols (BPA, BPS, BPF) on the same genes. Results revealed alterations in gene expression profiles, with BPS exposure increasing 11β-HSD1 (p = 0.02821) and miR-21 (p = 0.01515) expression, with the latest mirroring patterns in women with PCOS. BPA exposure led to elevated androgen receptor (AR) expression (p = 0.0298), while BPF exposure was associated with higher levels of miR-155. Of particular interest was the parallel epigenetic expression profile between BPS and PCOS, suggesting a potential link. These results contribute valuable insights into the nuanced impact of bisphenol exposure on granulosa cell genes, allowing the study to speculate potential shared mechanisms with the pathophysiology of PCOS. Full article
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10 pages, 3706 KiB  
Entry
Three Kinds of Butterfly Effects within Lorenz Models
by Bo-Wen Shen, Roger A. Pielke, Xubin Zeng, Jialin Cui, Sara Faghih-Naini, Wei Paxson and Robert Atlas
Encyclopedia 2022, 2(3), 1250-1259; https://doi.org/10.3390/encyclopedia2030084 - 4 Jul 2022
Cited by 15 | Viewed by 9510
Definition
Within Lorenz models, the three major kinds of butterfly effects (BEs) are the sensitive dependence on initial conditions (SDIC), the ability of a tiny perturbation to create an organized circulation at large distances, and the hypothetical role of small-scale processes in contributing to [...] Read more.
Within Lorenz models, the three major kinds of butterfly effects (BEs) are the sensitive dependence on initial conditions (SDIC), the ability of a tiny perturbation to create an organized circulation at large distances, and the hypothetical role of small-scale processes in contributing to finite predictability, referred to as the first, second, and third kinds of butterfly effects (BE1, BE2, and BE3), respectively. A well-accepted definition of the butterfly effect is the BE1 with SDIC, which was rediscovered by Lorenz in 1963. In fact, the use of the term “butterfly” appeared in a conference presentation by Lorenz in 1972, when Lorenz introduced the BE2 as the metaphorical butterfly effect. In 2014, the so-called “real butterfly effect”, which is based on the features of Lorenz’s study in 1969, was introduced as the BE3. Full article
(This article belongs to the Section Earth Sciences)
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23 pages, 7429 KiB  
Article
3D Characterization of a Coastal Freshwater Aquifer in SE Malta (Mediterranean Sea) by Time-Domain Electromagnetics
by Potpreecha Pondthai, Mark E. Everett, Aaron Micallef, Bradley A. Weymer, Zahra Faghih, Amir Haroon and Marion Jegen
Water 2020, 12(6), 1566; https://doi.org/10.3390/w12061566 - 30 May 2020
Cited by 11 | Viewed by 5022
Abstract
Electromagnetic (EM) geophysical methods are well equipped to distinguish electrical resistivity contrasts between freshwater-saturated and seawater-saturated formations. Beneath the semi-arid, rapidly urbanizing island of Malta, offshore groundwater is an important potential resource but it is not known whether the regional mean sea-level aquifer [...] Read more.
Electromagnetic (EM) geophysical methods are well equipped to distinguish electrical resistivity contrasts between freshwater-saturated and seawater-saturated formations. Beneath the semi-arid, rapidly urbanizing island of Malta, offshore groundwater is an important potential resource but it is not known whether the regional mean sea-level aquifer (MSLA) extends offshore. To address this uncertainty, land-based alongshore and across-shore time-domain electromagnetic (TDEM) responses were acquired with the G-TEM instrument (Geonics Ltd., Mississauga, ON, Canada) and used to map the onshore structure of the aquifer. 1-D inversion results suggest that the onshore freshwater aquifer resides at 4–24 m depth, underlain by seawater-saturated formations. The freshwater aquifer thickens with distance from the coastline. We present 2D and 3D electromagnetic forward modeling based on finite-element (FE) analysis to further constrain the subsurface geometry of the onshore freshwater body. We interpret the high resistivity zones that as brackish water-saturated bodies are associated with the mean sea-level aquifer. Generally, time-domain electromagnetic (TDEM) results provide valuable onshore hydrogeological information, which can be augmented with marine and coastal transition-zone measurements to assess potential hydraulic continuity of terrestrial aquifers extending offshore. Full article
(This article belongs to the Special Issue Applied Geophysics in Hydrogeological Practice)
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9 pages, 2149 KiB  
Article
Real-World Benefit of Nivolumab in A Canadian Non-Small-Cell Lung Cancer Cohort
by R.A. Juergens, C. Mariano, J. Jolivet, N. Finn, J. Rothenstein, M.N. Reaume, A. Faghih, C. Labbé, S. Owen, F.A. Shepherd, J. Villeneuve, F. Romeyer, F. Pettersson and C. Butts
Curr. Oncol. 2018, 25(6), 384-392; https://doi.org/10.3747/co.25.4287 - 1 Dec 2018
Cited by 59 | Viewed by 1916
Abstract
Background: Nivolumab was the first immuno-oncology agent available for the treatment of lung cancer in Canada. In the present study, we evaluated the real-world benefit of nivolumab in Canadian patients with lung cancer. Methods: Patients included in the cohort were identified from a [...] Read more.
Background: Nivolumab was the first immuno-oncology agent available for the treatment of lung cancer in Canada. In the present study, we evaluated the real-world benefit of nivolumab in Canadian patients with lung cancer. Methods: Patients included in the cohort were identified from a registry of patients treated through expanded access to nivolumab before and after Health Canada approval. Demographics were collected from the application forms. Outcome data for the duration of treatment and survival were collected retrospectively. Results: In contrast to the randomized clinical trial populations, our study cohort included patients who were older (median age: 66 years; range: 36–92 years) and who had an Eastern Cooperative Oncology Group performance status of 2 (8.9%). Despite the poorer-prognosis cohort, median overall survival was 12.0 months, which is comparable to the survival demonstrated in the randomized phase iii trials of nivolumab in lung cancer. Median time to treatment discontinuation was 3.45 months and was similar for all patient subgroups, including poorer-prognosis groups such as those with a performance status of 2, those 75 years of age and older, and those with brain metastases. Conclusions: Nivolumab given in a real-world clinical setting was associated with results similar to those reported in the phase iii clinical trial setting. Full article
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