Background: Herpes simplex keratitis (HSK) is a disease characterized by the recurrent infection of the cornea, mainly due to infection caused by herpes simplex virus type 1. The suppression of recurrence can suppress progressive corneal scarring, ulcers, and perforation. Cornea contains vitamin D receptors (VDRs). VDR agonists show antimicrobial activity.
Case Presentation: In this case report, I describe two female patients aged 76 and 85 years old in whom the administration of a VDR agonist led to the suppression of the recurrence of HSK. The former patient had repeated HSK recurrence for over 10 years after the initial infection. The latter patient developed HSK immediately after vitrectomy, and her cornea remained susceptible to infection, resulting in recurrence. Both patients were trying to suppress recurrence by applying acyclovir ophthalmic ointment, but their medication adherence was declining. So, they switched to oral treatment with 0.5 μg of the VDR agonist per day, and since then, there has been no recurrence of HSK. Oral treatment with the VDR agonist is still ongoing.
Conclusions: This report highlights the cases where ways were examined to improve medication adherence in elderly patients who had a risk of HSK recurrence. Both patients responded to VDR agonist treatment and were able to suppress recurrence.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11853914 | PMC |
http://dx.doi.org/10.3390/diseases13020038 | DOI Listing |
Diseases
January 2025
Yoshida Eye Hospital, 2-31-8, Hondori, Hakodate 041-0851, Hokkaido, Japan.
Background: Herpes simplex keratitis (HSK) is a disease characterized by the recurrent infection of the cornea, mainly due to infection caused by herpes simplex virus type 1. The suppression of recurrence can suppress progressive corneal scarring, ulcers, and perforation. Cornea contains vitamin D receptors (VDRs).
View Article and Find Full Text PDFBiochem Pharmacol
April 2025
Institute of Cardiovascular Diseases & Department of Cardiac Surgery, TEDA International Cardiovascular Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College & Tianjin University, Tianjin 300457, China; Tianjin Key Laboratory of Molecular Regulation of Cardiovascular Diseases and Translational Medicine, Tianjin 300457, China. Electronic address:
Hyperhomocysteinemia and vitamin D deficiency are known to promote cardiac hypertrophy, however, whether vitamin D signaling is involved in hyperhomocysteinemia-induced cardiac hypertrophy remains unexplored. This study aimed to address this question by clarifying the effect of homocysteine on vitamin D and vitamin D receptor (VDR), with further elucidation of the regulatory mechanisms. Methionine diet-induced hyperhomocysteinemic (HHcy) rats and homocysteine-incubated cardiomyocytes were used as in vivo and in vitro models of cardiac hypertrophy.
View Article and Find Full Text PDFMed Mol Morphol
February 2025
Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, 65, Tsuruma-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.
Ovarian cancer (OvCa) is a leading cause of gynecological cancer-related mortality, primarily due to peritoneal dissemination, which facilitates metastasis in the abdominal cavity. This study explored the potential of vitamin D and its synthetic derivatives in mitigating peritoneal dissemination by modulating the behavior of mesothelial cells (MCs). Vitamin D, through its receptor (VDR), is known to influence cancer progression, and our findings demonstrate that vitamin D derivatives can inhibit mesenchymal transition of MCs induced by TGF-β1, a key driver of peritoneal dissemination.
View Article and Find Full Text PDFOncologist
January 2025
HonorHealth Research Institute, Scottsdale, AZ, United States.
Lessons Learned: Intravenous paricalcitol did not improve the efficacy of pembrolizumab, likely related to the short half-life.
Background: Immunotherapy has limited benefit in the treatment of advanced pancreatic cancer with the tumor microenvironment playing a key role in immune resistance. In preclinical studies, vitamin D receptor (VDR) agonists have been shown to sensitize pancreatic tumors to PD-1 blockade.
Eur J Med Chem
March 2025
State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Advanced Pharmaceuticals and Biomaterials, China Pharmaceutical University, Nanjing, 211198, PR China. Electronic address:
Vitamin D receptor (VDR) has emerged as a crucial target for the treatment of hepatic fibrosis, a condition characterized by excessive deposition of extracellular matrix (ECM) components leading to impaired liver function. Activation of VDR has been shown to inhibit the transformation of hepatic stellate cells (HSCs), which play a key role in the development of liver fibrosis, thus reducing ECM production. In this study, a series of 37 non-steroidal VDR agonists with novel scaffold were designed and synthesized utilizing the scaffold hopping strategy.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!