Molecular and structural changes induced by essential oil treatments in Vicia faba roots detected by FTIR and FTNIR spectroscopy.

Essential oils have recognized antimicrobial and antifungal properties which allow their utilization in agriculture like an alternative to pesticides, but their utilization requires the knowledge of all the potential structural changes and damages produced by the interaction with the vegetal organisms. In this paper, we investigated the effects of two essential oils, the tea tree oil (TTO) and the mixture of clove and rosemary oils (C + R), on the molecular structure of Vicia faba roots by Fourier transform infrared (FTIR) and Fourier near infrared transform (FTNIR) spectroscopy. FTIR spectroscopy showed structural modifications of the absorption bands related to DNA (1100 and 1050 cm, carbohydrate backbones, and nucleotide bands within 900 and 850 cm), proteins (1700 and 1600 cm amide I band, 1580 and 1520 cm amide II band), and lipids (methylene group of aliphatic chains between 2950 and 2800 cm).

Molecular and structural changes induced by essential oils treatments in Vicia faba roots detected by genotoxicity testing.

Over the last few years, there has been an increased interest in exploiting allelopathy in organic agriculture. The aim of this investigation was to examine the effects of essential oil mixtures in order to establish their allelopathic use in agriculture. Two mixtures of essential oils consisting respectively of tea tree oil (TTO) and clove plus rosemary (C + R) oils were tested.

Arsenic exposure triggers a shift in microRNA expression.

Exposure to inorganic Arsenic (iAs) through drinking water is a major public health problem affecting most countries. iAs has been classified by the International Agency for Research on Cancer as Group 1: "Carcinogenic to humans". Although numerous studies have shown the related adverse effects of iAs, sensitive appropriate biomarkers for studies of environmental epidemiology are still required.

Molecular modifications induced by inorganic arsenic in Vicia faba investigated by FTIR, FTNIR spectroscopy and genotoxicity testing.

Exposure to inorganic arsenic (iAs) through drinking water is a major public health concern affecting most countries. Epidemiologic studies showed a significant association between consumption of iAs through drinking water and different types of cancer. However, the exact mechanisms underlying As-induced cancer and other diseases are not yet well understood.

[Molecular biomarkers in workers and population exposed to inorganic arsenic: preliminary study in vitro].

The inorganic Arsenic (iAs) is a metalloid widely diffuse in all environmental matrices. The iAs has been classified as a Group 1 carcinogen by the International Agency for Research on Cancer. The microRNAs (miRNAs) are small non coding RNAs that negatively regulate the expression of hundreds of target genes in many key physiological and pathological cell processes, including stress response, differentiation, proliferation, apoptosis and cancer, miRNA expression profiles appear altered in most human cancers and it has been highlighted the potential of miRNA profiling in cancer diagnosis and prognosis.