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Cancer: Breast Cancer
Drug: Tamoxifen

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Total 1186 results found since Jan 2013.

Non-retroareolar male mucinous breast cancer without gynecomastia development in an elderly man: A case report
CONCLUSION: To the best of our knowledge, this is the first case report of MMBC in the non-retroareolar region of the nipple without gynecomastia development. Mucinous tumors are easily missed during diagnosis, and the incidence of axillary lymph node metastases of chest mucinous tumors has increased.PMID:37727495 | PMC:PMC10506025 | DOI:10.12998/wjcc.v11.i25.5954
Source: Clinical Genitourinary Cancer - September 20, 2023 Category: Cancer & Oncology Authors: Qiang Sun Xu-Yan Liu Qi Zhang Hai Jiang Source Type: research

Enantioselective De Novo Synthesis of α,α-Diaryl Ketones from Alkynes
Angew Chem Int Ed Engl. 2023 Sep 19:e202310078. doi: 10.1002/anie.202310078. Online ahead of print.ABSTRACTChiral α,α-diaryl ketones are structural motifs commonly present in bioactive molecules, and they are also valuable building blocks in synthetic organic chemistry. However, catalytic asymmetric synthesis of α,α-diaryl ketones bearing a tertiary stereogenic center remains largely unsolved. Herein, we report a catalytic de novo enantioselective synthesis of α,α-diaryl ketones from simple alkynes via chiral phosphoric acid (CPA) catalysis. A broad range of enolizable α,α-diaryl ketones are prepared in good yields...
Source: Angewandte Chemie - September 19, 2023 Category: Chemistry Authors: Xueting Zhou Qingqin Huang Jiami Guo Lei Dai Yixin Lu Source Type: research

Thyroid hormone enhances estrogen-mediated proliferation and cell cycle regulatory pathways in steroid receptor-positive breast Cancer
In this report, we show TH ± E2 ± tamoxifen inhibits cell cycle control signaling, reduces apoptosis, and enhances cell proliferation, tumor growth, tamoxifen resistance, and clonal expansion. Mechanistically these changes involve numerous genes and pathways, including critical cell cycle regulatory proteins and genes identified using various molecular methods. These studies facilitate a greater mechanistic understanding of the biological and molecular impact of TH on SR+ BC.PMID:37723865 | DOI:10.1080/15384101.2023.2249702
Source: Cancer Control - September 19, 2023 Category: Cancer & Oncology Authors: Reema S Wahdan-Alaswad Susan M Edgerton Hyun Min Kim Aik Choon Tan Bryan R Haugen Bolin Liu Ann D Thor Source Type: research

Enantioselective De Novo Synthesis of α,α-Diaryl Ketones from Alkynes
Angew Chem Int Ed Engl. 2023 Sep 19:e202310078. doi: 10.1002/anie.202310078. Online ahead of print.ABSTRACTChiral α,α-diaryl ketones are structural motifs commonly present in bioactive molecules, and they are also valuable building blocks in synthetic organic chemistry. However, catalytic asymmetric synthesis of α,α-diaryl ketones bearing a tertiary stereogenic center remains largely unsolved. Herein, we report a catalytic de novo enantioselective synthesis of α,α-diaryl ketones from simple alkynes via chiral phosphoric acid (CPA) catalysis. A broad range of enolizable α,α-diaryl ketones are prepared in good yields...
Source: Angewandte Chemie - September 19, 2023 Category: Chemistry Authors: Xueting Zhou Qingqin Huang Jiami Guo Lei Dai Yixin Lu Source Type: research

< em > CYP2C19*17 < /em > association with higher plasma 4-hydroxy tamoxifen in Pakistani (estrogen-positive) breast cancer patients
This study was conducted to explore the influence of genetic polymorphisms in CYP2C19 gene on Tam's pharmacogenetics and pharmacokinetics in estrogen-positive BC patients. Data from healthy, unrelated individuals (n = 410; control group) and ER-positive BC patients (n = 430) receiving 20 mg of Tam per day were recruited. Steady-state plasma concentrations of Tam and its three metabolites were quantified using the high-performance liquid chromatography in the patients. The CYP2C19 polymorphisms were genotyped using an Amplification Refractory Mutation System-Polymerase Chain Reaction (ARMS-PCR) approach. More than 65% of he...
Source: Cancer Control - September 9, 2023 Category: Cancer & Oncology Authors: Muhammad Usman Tareen Sana Riaz Saima Shakil Malik Sana Zahid Anum Khursheed Fizza Tariq Faiza Abbas Muhammad Nouman Malik Riffat Aysha Anis Mariam Anees Iram Murtaza Aneesa Sultan Source Type: research

Chemical Synthesis and Biochemical Properties of Cholestane-5 α,6β-diol-3-sulfonate, A Non-hydrolysable Analogue of cholestane-5α,6β-diol-3β-sulfate
J Steroid Biochem Mol Biol. 2023 Sep 6:106396. doi: 10.1016/j.jsbmb.2023.106396. Online ahead of print.ABSTRACTCholestane-3β,5α,6β-triol (CT) is a primary metabolite of 5,6-epoxycholesterols (5,6-EC) that is catalyzed by the cholesterol-5,6-epoxide hydrolase (ChEH). CT is a well-known biomarker for Niemann-Pick disease type C (NP-C), a progressive inherited neurodegenerative disease. On the other hand, CT is known to be metabolized by the 11β-hydroxysteroid-dehydrogenase of type 2 (11β-HSD2) into a tumor promoter named oncosterone that stimulates the growth of breast cancer tumors. Sulfation is a major metabolic trans...
Source: Mol Biol Cell - September 8, 2023 Category: Molecular Biology Authors: Philippe de M édina Silia Ayadi R égis Soulès Bruno Payre Sandrine Rup-Jacques Sandrine Silvente-Poirot Mohammad Samadi Marc Poirot Source Type: research

Oral Health Concerns of Female Breast Cancer Survivors on Adjuvant Endocrine Therapy
CONCLUSIONS: Data analysis showed that female breast cancer survivors taking adjuvant endocrine therapy appear more likely to have oral health issues than those not taking such therapy. Improved awareness of these issues is critical. Assessment and management guidelines to address these oral health issues are needed by health care providers.PMID:37678330 | DOI:10.1097/01.NAJ.0000978924.32557.53
Source: The American Journal of Nursing - September 7, 2023 Category: Nursing Authors: So-Hyun Park Shiela M Strauss Source Type: research

De-escalation of Post-mastectomy Irradiation in Hormone Receptor-Positive Breast Cancer with One to Three Positive Nodes
CONCLUSIONS: In our cohort of patients with one to three positive nodes and a RS ≤ 25, omission of post-mastectomy radiation therapy had no impact on OS. Our results suggest that RS may be utilized in the individualized decision making on PMRT.PMID:37679538 | DOI:10.1245/s10434-023-14155-2
Source: Ann Oncol - September 7, 2023 Category: Cancer & Oncology Authors: Gili G Halfteck Y Efstathia Polychronopoulou Waqar Haque Roi Weiser Sandra S Hatch V Suzanne Klimberg Source Type: research

Oral Health Concerns of Female Breast Cancer Survivors on Adjuvant Endocrine Therapy
CONCLUSIONS: Data analysis showed that female breast cancer survivors taking adjuvant endocrine therapy appear more likely to have oral health issues than those not taking such therapy. Improved awareness of these issues is critical. Assessment and management guidelines to address these oral health issues are needed by health care providers.PMID:37678330 | DOI:10.1097/01.NAJ.0000978924.32557.53
Source: The American Journal of Nursing - September 7, 2023 Category: Nursing Authors: So-Hyun Park Shiela M Strauss Source Type: research