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1.
Biochem Genet ; 59(6): 1487-1505, 2021 Dec.
Article in English | MEDLINE | ID: mdl-33939082

ABSTRACT

Several reports examined the association of the GSTP1 p.Ile105Val (rs1695, c.313A > G) variant with the elevated risk of multiple cancerous diseases involving breast carcinoma, but with inconclusive findings. The primary purpose of this study is to test the association of this essential variant with the risk of breast carcinoma among Egyptian females. This case-control study was conducted based on 200 participants involving 100 women diagnosed with breast carcinoma and 100 unrelated cancer-free controls from the same district. The genomic DNA for all participants was genotyped utilizing T-ARMS-PCR procedure. The frequencies of the GSTP1 p.Ile105Val (rs1695, c.313A > G) variant indicated a statistically significant with the elevated risk of breast carcinoma under various genetic models, including allelic (OR = 2.48, P-value < 0.001) and dominant (OR = 2.36, P-value = 0.003) models. In conclusion, the GSTP1 p.Ile105Val (rs1695, c.313A > G) variant was considered as an independent risk factor for breast carcinoma among Egyptian women.


Subject(s)
Breast Neoplasms , Genetic Predisposition to Disease , Breast Neoplasms/epidemiology , Breast Neoplasms/genetics , Case-Control Studies , Egypt/epidemiology , Female , Genotype , Glutathione S-Transferase pi/genetics , Humans , Polymorphism, Single Nucleotide , Risk Factors
2.
ACS Omega ; 6(13): 8894-8907, 2021 Apr 06.
Article in English | MEDLINE | ID: mdl-33842760

ABSTRACT

The inhibitory impact of low-cost synthesized pyrazoline derivatives named Pz series (Pz1 and Pz2) on the corrosion of API 5L X60 carbon steel in 5 M HCl was inspected to serve as corrosion inhibitors against such a solution for its usage in the oilfield well acidization process. Also, the same compounds were unitized as biocides for sulfate-reducing bacteria (SRBs) to inhibit the microbial-induced corrosion effect. This study was conducted via several electrochemical techniques, namely, electrochemical potentiodynamic polarization (EP) and electrochemical impedance spectroscopy (EIS), in addition to computational density functional theory (DFT). The inhibition efficiency (IE) of Pz series on the corrosion of 5L X60 carbon steel in 5 M HCl was found to increase whenever the Pz series molecule concentration was increased. EP measurements revealed that Pz1 and Pz2 have both cathodic and anodic features (mixed inhibitor) and their corrosion IEs were around 90%. The physicochemical properties of the Pz1 and Pz2 compounds were studied using Langmuir adsorption isotherms, where the equilibrium adsorption data were found to follow it accurately. EIS outputs were found to comply with the values obtained from EP. Scanning electron microscopy was used to examine the topographic anisotropy between the inhibited and uninhibited 5L X60 carbon steel samples to double-check the electrochemical findings. DFT calculations and Monte Carlo simulations were utilized to predict the behavior of inhibitors and to rationalize the experimental results. The serial dilution bioassay technique was used to assess the Pz series as potential biocides to counter the effect of SRBs in compliance with the TM0194-2014-SG standard test method, and the results showed the potency of Pz series in inhibiting such bacterial growth.

3.
Bioorg Chem ; 90: 103039, 2019 09.
Article in English | MEDLINE | ID: mdl-31220667

ABSTRACT

The chemical transformation of phosphinic acid is a well-considered mature area of research on account of the historical significant reactions such as Kabachnik-Fields, Mannich, Arbuzov, Michaelis-Becker, etc. Considerable advances have been made over last years especially in metal-catalyzed, free-radical processes and asymmetric synthesis using catalytic enantioselective. As a result, the aim of this synopsis is to make the reader familiar with advances in the approaches of phosphinic acids toward the synthesis of highly functionalized and valuable buildings blocks. Another purpose of this survey is to provide the current status of the applications of phosphinic acids in the synthesis of drugs.


Subject(s)
Pharmaceutical Preparations/chemical synthesis , Phosphinic Acids/chemistry , Alkylation , Esterification , Phosphinic Acids/chemical synthesis , Stereoisomerism
4.
Mol Divers ; 20(4): 989-999, 2016 Nov.
Article in English | MEDLINE | ID: mdl-27350109

ABSTRACT

This work highlights the literature of one of the most valuable moieties in the field of organic chemistry. In this review, the chemistry of tetronic acid as a simple precursor to privileged heterocyclic motifs is described. The synthetic procedures of different fused heterocycles incorporating a furan moiety are described. Fused heterocycles are classified as bicyclic, tricyclic, tetracyclic and spiro-fused pyran derivatives.


Subject(s)
Chemistry, Organic , Furans/chemistry , Heterocyclic Compounds/chemistry , Furans/chemical synthesis , Heterocyclic Compounds/chemical synthesis , Structure-Activity Relationship
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