881,360 results match your criteria: "India; Johns Hopkins School of Medicine[Affiliation]"

The present work employs the CCSD(T)/CBS//M06-2X/aug-cc-pVTZ level of theory to investigate the effect of a water monomer (WM) and dimer (WD) on the oxidation of nitrous acid (HONO) by the Criegee intermediate (CHOO). The present work suggests that similar to an uncatalyzed path, a water catalyzed reaction can also proceed two paths, , the oxygen atom transfer (OAT) and the hydrogen atom transfer (HAT) path. In addition, here also, the HAT path dominates over the OAT path.

View Article and Find Full Text PDF

Transition metal-mediated catalytic reduction, oxidation, and hydrofunctionalization reactions are important organic reactions and are considered highly atom-economical. Owing to their unique properties, selenium ligated several transition metals-based complexes have been reported for several catalytic applications. This review presents the synthesis of various selenium-supported transition metal complexes and their catalytic applications in reduction, oxidation, N-alkylation of amines, and hydrofunctionalization reactions.

View Article and Find Full Text PDF

The present work reports a clear and improved hydrothermal methodology for the synthesis of MoSe nanoflowers (MNFs) at 210 °C. To observe the effect of temperature on the fascinating properties, the process temperature was modified by ±10 °C. The as-prepared MNFs were found to consist of 2D nanosheets, which assembled into a 3D flower-like hierarchical morphology van der Waals forces.

View Article and Find Full Text PDF

Purpose: To evaluate the role of computed tomography-dacryocystography (CT-DCG) in the management of traumatic secondary acquired lacrimal duct obstruction (SALDO) and study its correlation with the intra-operative findings.

Methods: Retrospective interventional case series. Eighty-five lacrimal drainage systems (LDS) of 79 patients diagnosed with traumatic SALDO, who underwent pre-operative CT-DCG, between January 2019 and June 2023, were analyzed.

View Article and Find Full Text PDF

In spite of being the second-lowest abundant proteinogenic amino acid, approximately 90% of proteins contain at least one tryptophan residue. Hence, the chemoselective functionalization of tryptophan residue can provide access to site-selective bioconjugation of almost all known proteins. With the increase in the utility of bioconjugated proteins and peptides as drugs and therapeutic agents, the development of smart protocols to fabricate and modulate biomolecules has flourished.

View Article and Find Full Text PDF

Water is the basic molecule in living beings, and it has a major impact on vital processes. Plants are sessile organisms with a sophisticated regulatory network that regulates how resources are distributed between developmental and adaptation processes. Drought-stressed plants can change their survival strategies to adapt to this unfavorable situation.

View Article and Find Full Text PDF

Background: The technical challenges associated with the removal of small nodules in challenging locations rather than peripheral locations remain unaddressed. We sought to illustrate the parenchymal-sparing surgical approach employed for deep interlobar lung cancer with fused fissures (DILCFFs).

Methods: A retrospective review of 43 patients with cT1N0M0 DILCFFs from January 2013 through December 2022 was performed.

View Article and Find Full Text PDF

Ancient schwannoma is a rare benign variant of schwannoma with marked degenerative changes, often mimicking malignancies, particularly when retroperitoneal and pararenal. A 34-year-old woman presented with a rapidly growing 15 cm retroperitoneal pararenal mass. Imaging suggested an aggressive malignancy.

View Article and Find Full Text PDF

Non-halophytic plants are highly susceptible to salt stress, but numerous studies have shown that halo-tolerant microorganisms can alleviate this stress by producing phytohormones and enhancing nutrient availability. This study aimed to identify and evaluate native microbial communities from salt-affected regions to boost black gram () resilience against salinity, while improving plant growth, nitrogen uptake, and nodulation in saline environments. Six soil samples were collected from a salt-affected region in eastern Uttar Pradesh, revealing high electrical conductivity (EC) and pH, along with low nutrient availability.

View Article and Find Full Text PDF

Background: Intrauterine insemination (IUI) is an effective and inexpensive method of managing patients with unexplained and male factor infertility. It is attempted before proceeding to more invasive assisted reproductive techniques such as fertilisation and intracytoplasmic sperm injection. Numerous semen parameters have been assessed to indicate successful outcomes with IUI.

View Article and Find Full Text PDF

Background: Polycystic ovary syndrome (PCOS) presents a complex diagnostic challenge due to its heterogeneous nature.

Aim: This study aimed to examine the diagnostic utility of various hormones across different PCOS phenotypes.

Settings And Design: This cross-sectional study was carried out in 187 newly diagnosed PCOS women (18-40 years) attending the outdoor clinics of the department of endocrinology and obstetrics and gynaecology of a tertiary care centre in India.

View Article and Find Full Text PDF

Infertility presents multifaceted challenges that encompass both physical and emotional burdens. Yoga, as a comprehensive system of mind-body medicine, serves as an effective intervention for managing male factor infertility, a complex lifestyle disorder with significant psychosomatic elements. This review explores the transformative role of yoga in addressing both the emotional and physical dimensions of infertility.

View Article and Find Full Text PDF

Background: Thyroid auto-antibodies could be one of the many causes of infertility in women, especially with polycystic ovarian syndrome (PCOS) with a prevalence of 5%-15%. Patients with anti-thyroid antibodies have shown significantly lower fertilisation rates, implantation rates, lower pregnancy rates and increased risk of first-trimester abortions when compared with those without anti-thyroid antibodies.

Aim: The aim of the study was to assess the prevalence of thyroid auto-antibodies in euthyroid infertile women with PCOS and to compare the prevalence of thyroid autoantibodies in euthyroid infertile women with PCOS and without PCOS.

View Article and Find Full Text PDF

Editorial Commentary.

J Hum Reprod Sci

December 2024

Editor in Chief, Journal of Human Reproductive Sciences, Christian Medical College, Vellore, Tamil Nadu, India.

View Article and Find Full Text PDF

Background: Cancer treatments such as chemotherapy and radiotherapy often compromise fertility by damaging gonadal function, creating a critical need for fertility preservation options. Despite advancements in fertility preservation techniques, there is a significant lack of research focused on their application in Asian cancer patients and their utilisation remains underexplored in this population.

Aim: This study aims to evaluate the utilisation rates and outcomes of cryopreserved gametes in cancer patients who underwent fertility preservation before their cancer treatment.

View Article and Find Full Text PDF

Background: Ovulation induction (OI) in patients with polycystic ovary syndrome (PCOS) remains challenging, and several biomarkers have been evaluated for their ability to predict ovulation. The predictive ability of candidate biomarkers, particularly with letrozole-based therapy in infertile PCOS women, remains inconclusive as it is yet to be evaluated in a prospective study.

Aim: To assess the role of anti-Müllerian hormone (AMH), follicle-stimulating hormone (FSH), luteinising hormone (LH)/FSH ratio, testosterone and free androgen index (FAI) as predictors of ovarian response to letrozole-based OI therapy during OI cycles in infertile women with PCOS from North India.

View Article and Find Full Text PDF

Background: Shared decision-making (SDM) incorporates evidence, patient values, and preferences into medical decision-making. SDM and decision aids might promote health professional engagement and patient knowledge of tobacco cessation therapy, improving usage and results. The SDM facilitates talks that lead to better-informed judgements that align with patients' priorities, unlike individual decision-making.

View Article and Find Full Text PDF

The current investigation focuses on synthesizing Ag-Fe bimetallic nanoparticles (AgFe-BMNPs) using cell-free filtrates of the as a novel fungal reducing agent. The optical, morphological, and surface properties of these fungus-fabricated AgFe-BMNPs and their monometallic counterparts (AgNPs and FeNPs) were analyzed using sophisticated nanotechnology instruments. The UV-visible spectrum showed peaks at 231 nm and 415 nm for BMNPs and 450 nm and 386 nm for AgNPs and FeNPs, respectively.

View Article and Find Full Text PDF

This work presents the development of a rhodamine-based colorimetric and turn-on fluorescent chemosensor (P1) designed for selective recognition of Ni ions. Chemosensor P1 exhibited remarkable sensitivity and selectivity for Ni ions, exhibiting clear colorimetric and fluorescence responses. The binding interactions were meticulously examined using UV-Vis.

View Article and Find Full Text PDF

Rapid detection of hydrogen peroxide and nitrite in adulterated cow milk using enzymatic and nonenzymatic methods on a reusable platform.

RSC Adv

January 2025

Environmental Biotechnology Laboratory, Department of Biological Sciences, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal District Hyderabad 500078 India

Cow milk is readily adulterated due to its complex properties that can emulsify many adulterants. Among the commonly used adulterants in cow milk are hydrogen peroxide (HP) and nitrite. Commercially available HP is added to extend cow milk's shelf life, while nitrite enters through the tap or pond water added to increase cow milk's volume.

View Article and Find Full Text PDF

Antibiotic-resistant bacteria are a serious global health threat, making infections harder to treat and increasing medical costs and mortality rates. To combat resistant bacterial strains, a series of compounds (QS1-12) were synthesized with an excellent yield of 85-92%. Initial assessments of these analogues as potential antibacterial agents were conducted through a preliminary screening against a panel of diverse bacterial strains.

View Article and Find Full Text PDF