scholarly journals In serum, higher parathyroid hormone but not lower vitamin D is associated with oral squamous cell carcinoma

2015 ◽  
Vol 22 (4) ◽  
pp. 259 ◽  
Author(s):  
H. Zhang ◽  
H. Lu ◽  
C. Shrestha ◽  
Y. Feng ◽  
Y. Li ◽  
...  

IntroductionVitamin D and calcium are known to regulate differentiation and proliferation of keratinocytes; they might potentially have a role in suppressing carcinogenesis in squamous epithelium. Serum parathyroid hormone (pth) is a sensitive indicator of calcium and vitamin D deficiency, and 25-hydroxyvitamin D [25(OH)D] is an established marker of vitamin D status.MethodsTo determine whether levels of 25(OH)D, calcium, or pth in serum are associated with oral squamous cell carcinoma (oscc), we examined those parameters in serum collected from 70 patients with oscc and from an equal number of matched control subjects.ResultsThe results showed that intact pth was significantly higher in serum from oscc patients than in serum from control subjects. However, we observed no significant differences in 25(OH)D or calcium in serum from oscc patients and from control subjects.ConclusionsWe conclude that higher serum pth, but not lower serum vitamin D or calcium, is associated with oscc.

2020 ◽  
Vol 40 (5) ◽  
pp. 2467-2474 ◽  
Author(s):  
ALLEN S.W. OAK ◽  
GEORGETA BOCHEVA ◽  
TAE-KANG KIM ◽  
ANNA A. BROŻYNA ◽  
ZORICA JANJETOVIC ◽  
...  

2020 ◽  
Vol 6 (4) ◽  
pp. 428-432
Author(s):  
Samuel E. Udeabor ◽  
Abdullah M. Albejadi ◽  
Waleed A. K. Al‐Shehri ◽  
Chidozie I. Onwuka ◽  
Saeed Y. Al‐Fathani ◽  
...  

Author(s):  
Zohreh Firouzi ◽  
Saeideh Mahdizadeh Sajjadieh ◽  
Saeideh Mahdizadeh Sajjadieh ◽  
Maryam Mousavi ◽  
Zahra Erfanian ◽  
...  

Background: Previous studies have indicated that parathyroid hormone (PTH) has been linked to post-myocardial infarction (MI) development. The aim of this cross-sectional study was to evaluate the relationship between PTH level and heart failure due to post infarction remodeling during the first 72 hours of hospitalization. Methods: Seventy patients with a diagnosis of acute MI (age ≥18 years, 22 females and 48 males) were enrolled. Patients were admitted to the Imam Raza Educational, Research and Treatment Center, Mashhad University of Medical Sciences, Iran between July 2014 to September 2015. We measured PTH and vitamin D level. Blood samples were taken after 24 hours and 72 hours. Results: During the first 72 hours, the PTH level significantly increased in patients with Post-MI heart failure. 68% of the subjects had an inappropriate vitamin D level at the time of admission. Mean levels of vitamin D and PTH increased compared with the baselines (95% CI, 0.15 to 10.03, P: 0.044), (95% CI, 6.5 to 24.8, P:0.001) respectively. Conclusion: Acute elevations of serum PTH levels increased early remodeling heart failure after MI. Serum vitamin D status was independent of high serum PTH level. Based on the current evidence, PTH excess may be a risk factor for heart failure, so early treatment and omitting risk factors are the most effective strategies for the patients with acute myocardial infarction. J Pharm Care 2020; 8(1): 11-15.


2019 ◽  
Vol 10 (12) ◽  
Author(s):  
Zixian Huang ◽  
Yin Zhang ◽  
Haigang Li ◽  
Yufeng Zhou ◽  
Qianyu Zhang ◽  
...  

AbstractChemoresistance is a major cause of cancer progression and the mortality of cancer patients. Developing a safe strategy for enhancing chemosensitivity is a challenge for biomedical science. Recent studies have suggested that vitamin D supplementation may decrease the risk of many cancers. However, the role of vitamin D in chemotherapy remains unknown. We found that vitamin D sensitised oral cancer cells to cisplatin and partially reversed cisplatin resistance. Using RNA-seq, we discovered that lipocalin 2 (LCN2) is an important mediator. Cisplatin enhanced the expression of LCN2 by decreasing methylation at the promoter, whereas vitamin D enhanced methylation and thereby inhibited the expression of LCN2. Overexpression of LCN2 increased cell survival and cisplatin resistance both in vitro and in vivo. High LCN2 expression was positively associated with differentiation, lymph node metastasis, and T staging and predicted a poor prognosis in oral squamous cell carcinoma (OSCC) patients. LCN2 was also associated with post-chemotherapy recurrence. Moreover, we found that LCN2 promoted the activation of NF-κB by binding to ribosomal protein S3 (RPS3) and enhanced the interaction between RPS3 and p65. Our study reveals that vitamin D can enhance cisplatin chemotherapy and suggests that vitamin D should be supplied during chemotherapy; however, more follow-up clinical studies are needed.


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