Role of oral foci in systemic diseases: An update

Background: A current research disagreement middles about a theorized connection between chronic oral infections and the progress of adverse systemic health conditions. However, the gap between general and dental medicine is quickly closing, due to significant findings supporting the association between dental infections and systemic conditions such as cardiovascular diseases, type 2 diabetes mellitus, respiratory diseases, stroke, adverse pregnancy outcomes, osteoporosis, renal diseases, and gastrointestinal diseases. Relentless efforts have brought light on numerous advances in illuminating their etiopathological links. However, the majority of data about possible role or interlink between the infection and systemic disease is available in the form of case report or summary. As case reports are not the acceptable to many indexed scientific magazines, many these findings undergo unnoticed to researchers. The currently minimal accessible data provide only an indication of the actuality. Aim: This article highlights the Role of oral foci in systemic diseases. Conclusion: There is need of sincere work efforts on genetic relatedness of organisms, rather than their phenotypes, sophisticated sampling, detection, and analytical techniques to create the associations. To give insight to recent apprises of different systemic diseases as a consequence of primary oral infections and the pathogenesis link. The odontogenic bacteremia is likely to cause systemic and end organ infections, but such infections can easily resist by body defenses. It is important that role of good oral health and the risks associated with poor oral health should told to the individuals. Clinical significance: Dentists and medical practitioners should work together to provide comprehensive health care, thereby reducing the morbidity and mortality associated with oral infections

Nitric oxide and cancer: a review

Nitric oxide (NO), is a ubiquitous, water soluble, free radical gas, which plays key role in various physiological as well as pathological processes. Over past decades, NO has emerged as a molecule of interest in carcinogenesis and tumor growth progression. However, there is considerable controversy and confusion in understanding its role in cancer biology. It is said to have both tumoricidal as well as tumor promoting effects which depend on its timing, location, and concentration. NO has been suggested to modulate different cancer-related events including angiogenesis, apoptosis, cell cycle, invasion, and metastasis. On the other hand, it is also emerging as a potential anti-oncogenic agent. Strategies for manipulating in vivo production and exogenous delivery of this molecule for therapeutic gain are being investigated. However, further validation and experimental/clinical trials are required for development of novel strategies based on NO for cancer treatment and prevention. This review discusses the range of actions of NO in cancer by performing an online MEDLINE search using relevant search terms and a review of the literature. Various mechanisms by which NO acts in different cancers such as breast, cervical, gastric,colorectal, and head and neck cancers are addressed. It also offers an insight into the dichotomous nature of NO and discusses its novel therapeutic applications for cancer prevention and treatment

Cancer oriented biobanks: a comprehensive review

Biobanks provide a platform for innovative biomedical research and has improvised translational and personalized medicine to a great extent. Time 2009 published “10 ideas changing the world right now” with biobanks on the list emphasizing its role in discovery and development of new therapeutic drugs. They form the cornerstone, providing resources for future investigations and biomarker discovery to understand the effects of genetic, environmental and lifestyle factors on human morbidity, mortality and health. The aim of this review paper is to understand the role of biobanking in cancer research, the challenges faced and strategies to overcome these, for long term and sustainable research in the field of oncology

Measurement properties of oral health related patient reported outcome measures in patients with oral cancer: A systematic review using COSMIN checklist.

BACKGROUND:Oral cancer (OC) is one of the common malignant neoplasm resulting in a range of debilitating symptoms. Patient reported outcome measures (PROMs) could provide a valuable insight into the impact of OC on patients' quality of life (QoL). Selecting an adequate instrument among available PROMs for OC has been challenging for clinicians due to lack of information on their psychometric quality. This systematic review provides an extensive overview of methodological quality of all currently available PROMs for OC. METHOD:A systematic search was performed in PubMed, Scopus, Web of Science and CINAHL for relevant literature until 10th January 2019 and data was extracted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The quality of the identified studies was assessed per measurement property according to the COnsensus-based Standards for the selection of health Measurements Instruments (COSMIN) checklist. RESULTS:Seven studies were found evaluating 6 health-related QoL PROMs. Among six, there were 1 disease-specific and 5 generic PROMs. Information regarding important measurement properties was often incomplete. The evidence for the quality of measurement properties was found to be variable, none of the instruments performed sufficient on all measurement properties. Considering results of this review, QOL-OC appeared to have adequate COSMIN measurement properties. CONCLUSION:QOL-OC can be implemented in future studies to better understand symptoms and expectations of OC patients and help inform clinicians to formulate treatment strategies as per patients' needs

Ki67, CD105, and α-SMA expression supports the transformation relevant dysplastic features in the atrophic epithelium of oral submucous fibrosis

<div><p>Background</p><p>The grading of oral epithelial dysplasia is not possible in the atrophic epithelium of oral submucous fibrosis (OSMF). Recently, we found that features such as increased basal cell layer hyperplasia, abnormal superficial mitosis, increased nuclear-cytoplasmic ratio, increased nuclear size, and hyperchromasia represent transformation-relevant dysplastic features in the atrophic epithelium of OSMF. The presence of these features can be considered a high-risk feature for patients. However, these findings have not been tested and authenticated using markers relevant to oral carcinogenesis.</p><p>Method</p><p>Paraffin-embedded tissues from 30 normal oral mucosa (NOM) and 50 OSMF were retrieved from 2008 to 2016 and subjected to immunohistochemical expression using Ki67, CD105 and α-SMA antibodies.</p><p>Results</p><p>Ki67 LI showed significant increases from NOM (12.47±2.34) to LRED (23.47±3.75) to HRED (34.31±7.31) (<0.0001). Similarly, MVD was increased significantly from NOM (3.53±5.17) to LRED (27.57±12.25) to HRED (46.18±12.55) (p<0.0001). The expression of α-SMA was significantly increased from LRED (0.21±0.41) to HRED (1.13±0.56) (<0.0001). The Ki67 LI and α-SMA; MVD and α-SMA; and Ki67Ki67 LI and MVD in NOM, LRED and HRED showed a statistically significant positive correlation (P<0.0001). The increase in Ki67 LI was directly proportional to MVD and α-SMA expression from NOM to LRED to HRED (P<0.0001). The connective tissue stroma of NOM lacks α-SMA expression. Mild myofibroblast expression was noted in 4 cases of LRED (14.28%) and in 18 cases of HRED (81.81%). Moderate expression was noted only in 4 cases of HRED (22.22%).</p><p>Conclusion</p><p>Ki67 LI, CD105, and α-SMA expression showed significant differences between normal, LRED and HRED. These findings further support that features such as increased basal cell layer hyperplasia, abnormal superficial mitosis, increased nuclear-cytoplasmic ratio, and hyperchromasia could be transformation-relevant dysplastic features.</p></div

Correlation between Ki67, MVD and alpha SMA by Pearson’s rank correlation analysis.

<p>Correlation between Ki67, MVD and alpha SMA by Pearson’s rank correlation analysis.</p

Clinico-pathological details of oral submucous fibrosis patients.

<p>Clinico-pathological details of oral submucous fibrosis patients.</p