Potent DNA-damaging activities were seen in vitro from dietary chemicals found in coffee, tea, and liquid smoke. A survey of tea varieties confirmed genotoxic activity to be widespread. Constituent pyrogallol-like polyphenols (PLPs) such as epigallocatechin-3-gallate (EGCG), pyrogallol, and gallic acid were proposed as a major source of DNA-damaging activities, inducing DNA double-strand breaks in the p53R assay, a well characterized assay sensitive to DNA strand breaks, and comet assay. Paradoxically, their consumption does not lead to the kind of widespread cellular toxicity and acute disease that might be expected from genotoxic exposure. Existing physiological mechanisms could limit DNA damage from dietary injurants. Serum albumin and salivary α-amylase are known to bind EGCG. Salivary α-amylase, serum albumin, and myoglobin, but not salivary proline-rich proteins, reduced damage from tea, coffee, and PLPs, but did not inhibit damage from the chemotherapeutics etoposide and camptothecin. This represents a novel function for saliva in addition to its known functions including protection against tannins. Cell populations administered repeated pyrogallol exposures had abatement of measured DNA damage by two weeks, indicating an innate cellular adaptation. We suggest that layers of physiological protections may exist toward natural dietary products to which animals have had high-level exposure over evolution.
Objective: The aim of the study was to explore the correlation between short luteal phases and cycle irregularity in perimenopausal women.
Methods: In this feasibility pilot study, daily salivary-progesterone measurements from presumed perimenopausal women have been analyzed using the inne minilab-an at-home system for ovulation and cycle tracking. Data were collected between 2020 to August 2022 from 29 women from Germany and Austria from users over the age of 42 years.
Pleomorphic adenoma (PA) is the most common benign histological form of salivary gland tumors, particularly in the parotid gland, primarily affecting women between the ages of 40 and 60. However, its occurrence in the trachea is very rare. This article reports the case of a 48-year-old woman presenting with progressive dyspnea and weight loss, initially suspected of having a pulmonary embolism.
Background: Sialoblastoma is an uncommon salivary gland neoplasm seen predominantly in the paediatric age group. It poses diagnostic challenges to the pathologists because of its rarity.
Case Report: Here, we present the cytological features of a case of sialoblastoma in 5-month-old baby boy on imprint cytology.
Background: Oral Lichen Planus is one of the most popular chronic mucocutaneous diseases. It is classified as potentially malignant lesions. Many microRNAs can be used as biological markers for the disease and for its malignant transformation.
Introduction: This study aimed to report the efficacy and safety of adjuvant sequential chemotherapy after definitive treatment of salivary duct carcinoma (SDC) compared with the standard treatment alone (surgery with postoperative radiation therapy).
Methods: This was a retrospective study of pathologically confirmed 135 SDC patients (study period 2009 to 2022). After curative surgery and adjuvant radiation therapy, 55 of 135 patients decided to receive additional chemotherapy (OP+RT+Chemo group), while 80 opted for surgery and radiation (OP+RT group).
