Manoj N Sonavane

Eurofins Lancaster Laboratories, Inc.

Prostate cancer is the most diagnosed cancer among men in the United States. African American men are diagnosed with and succumb to prostate cancer at higher rates than other demographic groups. However, the biological drivers contributing to poorer outcomes in African American men compared to European American men with prostate cancer are still po...

Dihydroxyacetone (DHA) is the active ingredient in sunless tanning products and a combustion product from e-juices in electronic cigarettes (e-cigarettes). DHA is rapidly absorbed in cells and tissues and incorporated into several metabolic pathways through its conversion to dihydroxyacetone phosphate (DHAP). Previous studies have shown DHA induces...

Dihydroxyacetone (DHA) is a major byproduct of e-cigarette combustion and is the active ingredient in sunless tanning products. Mounting evidence points to its damaging effects on cellular functions. While developing a simple synthetic route to monomeric [13C3]DHA for flux metabolic studies that compared DHA and glyceraldehyde (GA) metabolism, we u...

Bisphenol A (BPA) is an organic synthetic compound that widely serves as a monomer in the manufacturing of polycarbonate plastic and epoxy resins, used in the packaging of food and drinks, thermal paper, medical devices, and dental materials. BPA exposure has been associated with serious endocrine-disrupting effects in humans and wildlife. Due to i...

Base Excision Repair (BER) addresses base lesions and abasic sites induced by exogenous and endogenous stressors. X-ray cross complementing group 1 (XRCC1) functions as a scaffold protein in BER and single-strand break repair (SSBR), facilitating and coordinating repair through its interaction with a host of critical repair proteins. Alterations of...

All life forms require nicotinamide adenine dinucleotide, NAD+, and its reduced form NADH. They are redox partners in hundreds of cellular enzymatic reactions. Changes in the intracellular levels of total NAD (NAD+ + NADH) and the (NAD+/NADH) ratio can cause cellular dysfunction. When not present in protein complexes, NADH and its phosphorylated fo...

Dihydroxyacetone (DHA) is a three‐carbon sugar that is the active ingredient in sunless tanning products and a by‐product of electronic cigarette (e‐cigarette) combustion. Increased use of sunless tanning products and e‐cigarettes has elevated exposures to DHA through inhalation and absorption. Studies have confirmed that DHA is rapidly absorbed in...

As catabolites of nicotinamide possess physiological relevance, pyridones are often included in metabolomics measurements and associated with pathological outcomes in acute kidney injury (AKI). Pyridones are oxidation products of nicotinamide, its methylated form, and its ribosylated form. While they are viewed as markers of over-oxidation, they ar...

Nicotinamide adenine dinucleotide (NAD+), the essential cofactor derived from vitamin B3, is both a coenzyme in redox enzymatic processes and substrate in non-redox events; processes that are intimately implicated in all essential bioenergetics. A decrease in intracellular NAD+ levels is known to cause multiple metabolic complications and age-relat...

Bisphenol A (BPA) is an environmental endocrine disrupting chemical widely used in the production of consumer products, such as polycarbonate plastics, epoxies, and thermal receipt paper. Human exposure to BPA is ubiquitous due to its high-volume production and use. BPA exposure has been associated with obesity, diabetes, reproductive disorders, an...

Bisphenol A (BPA) is used heavily in the production of polycarbonate plastics, thermal receipt paper, and epoxies. Ubiquitous exposure to BPA has been linked to obesity, diabetes, breast and reproductive system cancers. Resistance to chemotherapeutic agents has also been shown in cancer cell models. Here, we investigated BPA’s ability to confer res...

Wastewater treatment plant (WWTP) effluents are major sources of endocrine disrupting chemicals (EDCs) and of other chemicals of toxicological concern for the aquatic environment. In this study, we used an integrated strategy combining passive sampling (Chemcatcher®), developmental toxicity and mechanism‐based in vitro and in vivo bioassays to moni...

Bisphenol A (BPA) is a widely used chemical that has been extensively studied as an endocrine-disrupting chemical (EDC). Other bisphenols sharing close structural features with BPA, are increasingly being used as alternatives, increasing the need to assess associated hazards to the endocrine system. In the present study, the estrogenic activity of...

The implementation of targeted and nontargeted chemical screening analysis in combination with in vitro and organism-level bioassays is a prerequisite for a more holistic monitoring of water quality in the future. For chemical analysis, little or no sample enrichment is often sufficient, while bioanalysis often requires larger sample volumes at a c...

The aim of this PhD thesis was to develop and assess the potential of novel zebrafish (zf)- based in vitro and in vivo reporter gene assays as bio-analytical tools to monitor estrogenic activity and their implementation in effect-directed analysis (EDA) approach to identify fishspecific estrogenic compounds in complex mixtures. For this purpose, we...

Enzymes of the non-conventional yeast Yarrowia lipolytica seem to be tailor-made for the conversion of lipophilic substrates. Herein, we cloned and overexpressed the Zn-dependent alcohol dehydrogenase ADH2 from Yarrowia lipolytica in Escherichia coli. The purified enzyme was characterized in vitro. The substrate scope for YlADH2 mediated oxidation...

The initial training network consortium novel tools in effect-directed analysis to support the identification and monitoring of emerging toxicants on a European scale (EDA-EMERGE) was formed in response to the seventh EU framework program call to train a new generation of young scientists (13 PhD fellows and 1 postdoctoral fellow) in the interdisci...

Aquatic endocrine disrupting chemicals (EDCs) encompass a great diversity of chemicals that affect exposed organisms through different molecular mechanisms, including their ability to bind to estrogen receptors (ERs) and to modulate the transcription of target genes. Till date, most of in vitro assays used to assess xeno-estrogens have been establi...