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Vitamin D AND HIF -1

Valentin Trujillo, Paulina Marín-Luevano, Irma González-Curiel, Adrián Rodríguez-Carlos, Maira Ramírez-Reyes, Esther Layseca-Espinosa, José A Enciso-Moreno, Lorenza Díaz, Bruno Rivas-Santiago
Foot ulceration is one of the most common and complex sequelae of diabetes mellitus, generally posing a therapeutic challenge due to poor healing responses and high rates of complications, including peripheral vascular disease, ischemia and infections. Calcitriol, the most active vitamin D metabolite, induces antimicrobial peptides production in keratinocytes from diabetic foot ulcers (DFU); however, little is known about its effects on angiogenic factors in this pathology. Herein we aimed at studying whether calcitriol induces angiogenic molecules in keratinocytes under normoxic and hypoxic conditions, and if these molecules are able to improve cell migration in vitro...
November 2017: Journal of Steroid Biochemistry and Molecular Biology
Guohua Wang, Yong Cao, Tianding Wu, Chunyue Duan, Jianhuang Wu, Jianzhong Hu, Hongbin Lu
BACKGROUND: Cervical spondylotic myelopathy (CSM) is a degenerative disorder of the neck. Recent studies have reported the roles of single nucleotide polymorphisms and abnormal gene expression in the etiology and development of CSM. However, a systemic review of these findings is currently unavailable. METHODS: A systemic review of genetic factors of CSM was conducted through searching PubMed and EMbase databases. A total of 9 studies were included in this study, which included 8 genes: brain derived neurotrophic factor (BDNF), osteopontin (OPN), bone morphogenic protein (BMP) 4, collagen IX, vitamin D receptor (VDR), apolipoprotein E (ApoE), hypoxia-inducible factor α (HIF-1α), and cyclooxygenase 2 (COX-2)...
October 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
Connor Francis, Valentin David
PURPOSE OF REVIEW: Fibroblast growth factor 23 (FGF23) is a hormone secreted by osteocytes and osteoblasts that regulates phosphorus and vitamin D homeostasis. FGF23 levels increase progressively in chronic kidney disease (CKD), and FGF23 excess might be a causal factor of left ventricular hypertrophy, CKD progression and death. Therefore, understanding the molecular mechanisms that control FGF23 production is critical to design therapies to lower FGF23 levels. The present review focuses on the role of inflammatory stimuli on FGF23 regulation and summarizes recent studies that support a novel framework linking inflammation to FGF23 regulation...
July 2016: Current Opinion in Nephrology and Hypertension
Anna M Czarnecka, Magdalena Niedzwiedzka, Camillo Porta, Cezary Szczylik
Epidemiological, clinical, biochemical and genetic research has revealed that renal cell cancer (RCC) etiology is hormone-related. It was shown that hormone receptors are abnormally expressed in RCC cells. Abnormal endocrine stimulation also plays a significant role in RCC pathophysiology. Cellular proliferation, migration, angiogenesis, and drug resistance in RCC is modulated by para- and autocrine hormonal stimulation. In particular, RCC overexpression of gonadotropin-releasing hormone and its receptor was reported...
June 2016: International Journal of Oncology
S Nakanishi M, R Neshige, Y Kuroda, Y Inoue
A 34-year-old women without history of seizures was admitted to our hospital because of the diminished responsiveness and the repeated blinking for two days. Her past history showed neither surgery nor inflammation of the thyroid gland. General physical examination was normal. On neurological examination, the patient was blinking frequently and staring without any responsiveness. However, she occasionally became able to respond correctly to verbal orders, such as "open your eyes", "open your mouth", "stand up" and so on, which occurred abruptly just like the switch-on...
October 1990: Rinshō Shinkeigaku, Clinical Neurology
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