Results 51 to 60 of about 17,199 (227)

Alternative Developmental Toxicity Screening Methods Using Chick Embryo‐Based Models

Journal of Applied Toxicology, EarlyView.
ABSTRACT Nonclinical developmental toxicity studies are used to investigate the potential toxicities of drugs and chemical candidates on normal embryonic and fetal development during pregnancy, generally using mammalian laboratory animals such as rats and rabbits.
Jeong Hwan Kim, Cheoljin Park, Donghee Kim, Wonjun Jeong, Jinsoo Lee   +4 more
wiley   +1 more source

New Hydrazone Derivatives Featuring Isatin and Piperazine Moieties: Synthesis, Cytotoxicity Evaluation, and Molecular Modeling Studies

Journal of Applied Toxicology, EarlyView.
ABSTRACT In this study, ten novel compounds (IPH1–IPH10) were designed by integrating three pharmacophores (isatin, piperazine, and hydrazone) commonly found in the molecular structures of anticancer agents. The target molecules were obtained by the reaction of in‐house prepared 4‐(4‐(pyridin/pyrimidin‐2‐yl)piperazin‐1‐yl)benzohydrazide with various ...
Semiha Köprü, Münevver Baran, Miyase Gözde Gündüz, Şengül Dilem Doğan   +3 more
wiley   +1 more source

Yolk Sac Tumor of the Temporal Lobe: Case Report

Brazilian Neurosurgery, 2015
Germ cell tumors of the central nervous system (CNS) are usually located along the midline. Yolk sac tumor is a rare germ cell tumor very uncommonly located outside the midline, and, in such cases, it can be mistaken with other primary tumors.
Ana de Almeida Matos Monteiro Machado, Ricardo Jorge Ferreira Taipa, Manuel Jorge Rocha Melo Pires, Carla Maria Esteves Silva, Mário Augusto Cunha Gomes   +4 more
doaj   +1 more source

Histiocytosis development and clinical variation through the lens of genomics

The Journal of Pathology, EarlyView.
Abstract Histiocytic neoplasms are rare haematologic diseases characterised by clonal expansions of cells with a monocyte, macrophage or dendritic cell phenotype. Their clinical manifestations are diverse, ranging from indolent lesions to aggressive systemic disease.
Paul G Kemps, Astrid GS van Halteren, Tom van Wezel, Pancras CW Hogendoorn   +3 more
wiley   +1 more source

A Malignant Yolk Sac Tumor of the Ovary Presenting as Adnexal Torsion in a Child

Swiss Journal of Radiology and Nuclear Medicine
Introduction: Malignant yolk sac tumor is a rare ovarian neoplasm with peak incidence in young women. Its occurrence in children less than 10 years old is extremely uncommon.
Kabhilan A K, Ebinesh Arulnathan, Karunakaran N, Padma S, Praislin Gideon   +4 more
doaj   +1 more source

A rare case of brain metastatic of primary mediastinal yolk sac tumor

Radiology Case Reports, 2023
Primary yolk sac tumors are extragonadal germ cell tumors commonly seen in children and young adults. They are more common in men. Germ cells tumor on histopathological characteristics is classified as seminoma and non-seminomatous (NSGC).
Cindy Cecilia, MD, Djohan Ardiansyah, MD, Fadil, MD   +2 more
doaj   +1 more source

COX5A promotes cell progression and cisplatin‐resistance by alleviating mitochondrial dysfunction in head and neck squamous cell carcinoma

Precision Medical Sciences, EarlyView.
COX5A promotes cell progression and cisplatin‐resistance and alleviates mitochondrial dysfunction. ISG15 shows a reversing role with COX5A. Targeting the COX5A‐mediated mitochondrial metabolic pathway may offer a novel therapeutic approach to enhance cisplatin sensitivity in HNSCC.
Nannan Guo, Zhangyu Yao, Bo Gui, Qingya Sun, Yihan Tang, Tingting Hu, Yanbin Zhao, Fangzhou Liu   +7 more
wiley   +1 more source

Indications and Efficacy of Progestogen‐Monotherapy as Menopause Hormone Therapy: A Narrative Review

BJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.
ABSTRACT Menopausal hormone therapy (MHT) remains the most effective treatment for vasomotor symptoms (VMS) and other manifestations of menopause; however, its use is limited in women with contraindications to oestrogen. Progestogen monotherapy, though historically underutilized, represents a viable alternative in this population. This narrative review
Chloe Thomas, Olivia Carere, Lauren Clarfield, Michelle Jacobson   +3 more
wiley   +1 more source

Intracranial yolk sac tumor in an adult patient: MRI, diffusion-weighted imaging and 1H MR spectroscopy features [PDF]

Vojnosanitetski Pregled, 2012
Introduction. Yolk sac tumors represent only 5%-7% of intracranial germ cell tumors, which comprise about 1% of all primary brain tumors in adults. Literature data about nonspecific imaging characteristics of these tumors are scant.
Mačvanski Marija, Ristić-Baloš Dragana, Vasić Brankica, Lavrnić Slobodan, Gavrilović Svetlana, Milićević Mihajlo, Milenković Sanja, Stošić-Opinćal Tatjana   +7 more
doaj   +1 more source

Comparative Molecular Insights into Developmental and Behavioral Toxicity Induced by Octocrylene and Ethylhexyl Salicylate Exposure on Zebrafish

Integrative Zoology, EarlyView.
This study compared the ecological toxicity of organic ultraviolet filters, octocrylene (OC) and ethylhexyl salicylate (EHS), on zebrafish embryos and larvae. EHS exhibited higher acute toxicity, causing increased mortality, hypoactive behavior at 50 mg/L, and disruptions in lipid homeostasis, while OC primarily affected hypoxia response and ...
Xiaoyang Lu, Li Sun, Jiao Chen, Jing Wang, Miao Guan, Shixia Xu   +5 more
wiley   +1 more source