A set of unsymmetrical heteroaryl 1,2-diketones were synthesized by a heteroarylation/oxidation sequence with up to 65% isolated yields. Palladium catalyst XPhos Pd G4 and SeO were the key reagents used in this methodology, and microwave irradiation was utilized to facilitate an efficient and ecofriendly process. The application of heteroaryl 1,2-diketones is demonstrated through the synthesis of an unsymmetrical 2-phenyl-3-(pyridin-3-yl)quinoxaline () from 1-phenyl-2-(pyridin-3-yl)ethane-1,2-dione ().
View Article and Find Full Text PDFBackground: Exposure to groundwater arsenic via drinking water is common in certain geographies, such as parts of India, and causes a range of negative health effects, potentially including adverse reproductive health outcomes.
Methods: We conducted an ecological analysis of self-reported rates of stillbirth, recurrent pregnancy loss, and infertility in relation to groundwater arsenic levels in India. We used a gridded, modeled dataset of the probability of groundwater arsenic exceeding 10 μg/L (World Health Organization drinking water limit) to calculate mean probabilities at the district level (n = 599 districts).
Study Design: Prospective observation.
Objective: To assess the effect of dysphagia on patient satisfaction following anterior cervical discectomy and fusion.
Background: Difficulty with swallowing is a common complaint following anterior cervical spine surgery.
Objectives: Non-celiac gluten sensitivity (NCGS) is the presence of symptoms induced by gluten and relieved by a gluten-free diet (GFD) in patients without celiac disease or wheat allergy. Studies are mixed as to whether gluten is the main symptom trigger in patients with NCGS. Gluten immunogenic peptides (GIPs) in stool and urine are novel methods to monitor GFD compliance.
View Article and Find Full Text PDFThe diagnosis and treatment of sexually transmitted infections is a crucial component of providing evidence-based care in the emergency department. Understanding how to make the diagnosis and implement effective treatment is essential to maintaining and improving public health. Providers should also be adept at giving care to sexual assault survivors and seeking out the expertise of specially trained professionals within networks known as SANE, SAFE, or SART.
View Article and Find Full Text PDF