RESUMO
Breast cancer has remained a global challenge and the second leading cause of cancer mortality in women and family history. Hereditary factors are some of the major risk factors associated with breast cancer. Out of total breast cancer cases, 5-10% account only for familial breast cancer, and nearly 50% of all hereditary breast cancer are due to BRCA1/BRCA2 germline mutations. BRCA1/2 mutations play an important role not only in determining the clinical prognosis of breast cancer but also in the survival curves. Since this risk factor is known, a significant amount of the healthcare burden can be reduced by taking preventive measures among people with a known history of familial breast cancer. There is increasing evidence that phytochemicals of nutrients and supplements help in the prevention and cure of BRCA-related cancers by different mechanisms such as limiting DNA damage, altering estrogen metabolism, or upregulating expression of the normal BRCA allele, and ultimately enhancing DNA repair. This manuscript reviews different approaches used to identify potential phytochemicals to mitigate the risk of familial breast cancer with BRCA mutations. The findings of this review can be extended for the prevention and cure of any BRCAmutated cancer after proper experimental and clinical validation of the data.
Assuntos
Neoplasias da Mama , Feminino , Humanos , Neoplasias da Mama/genética , Neoplasias da Mama/prevenção & controle , Proteína BRCA1/genética , Proteína BRCA2/genética , Mutação , Predisposição Genética para DoençaRESUMO
Joubert syndrome (JS) is a rare, autosomal recessive, genetic syndrome that derives from the defects in a sensory organelle, the primary cilia. It is a multiorgan disorder affecting the brain, kidneys, liver, and eyes. The most common presenting feature in the newborn period is hypotonia, abnormal eye movements, irregular breathing pattern, characterized by episodic hyperpnea and apnea, later on, ataxia, and developmental retardation. Besides, a range of highly variable, systemic and ocular features can be present. We report a case of 2-month-old female infant, the product of a consanguineous marriage, with a sibling affected by JS, presenting with intermittent hyperpnea, apnea, facial dysmorphism, strabismus, oculomotor apraxia, proptosis, retinal dystrophy, chorioretinal coloboma, and large retrobulbar cysts communicating with the coloboma. Magnetic resonance imaging of the brain revealed the characteristic neuroradiologic finding, the "molar tooth sign." The child does not fix or follow the light, and the visual prognosis with all the ocular features of the syndrome present is extremely poor. In addition to adding to the diversity of ocular phenotypes, this case reiterates the importance of identifying the syndrome, understanding the varied ocular phenotypic presentations, need for further research on causative genes, prenatal diagnosis in affected families, interventions, and adequate genetic counseling.
RESUMO
OBJECTIVES: The purpose of this study was to obtain a natural antibiotic from Phenol-rich compounds; for the dressing and the treatment of chronic wounds. METHODS: The Phenol-rich compound sweet gel was prepared by blending four natural herbal extracts, Acacia catechu (L.F.), Momia (Shilajit), Castanea sativa, and Ephedra sinica stapf, with combination of a sweet gel medium, including honey, maple saps, Phoenix dactylifera L. (date), pomegranate extract and Azadirachta indica gum as a stabilizer. The combinations were screened by using a well-diffusion assay with cloxacillin as a control. Pseudomonas spp. was tested with our novel antimicrobial compound. The zones of inhibition in agar culture were measured for each individual component and for the compound, and the results were compared with those of the control group which had been treated with cloxacillin. Data were expressed as means ± standard deviations. Quantitative analyses were performed using the paired t-test. RESULTS: The antibiotic effect of the Phenol-rich compound sweet gel was statistically shown to be more significant than that of cloxacillin against Pseudomonas aeruginosa (P < 0.05). CONCLUSION: Our novel approach to fighting the antibiotic resistance of Pseudomonas proved to be successful. The Phenol-rich compound sweet gel was found to be suitable for use as an alternative medicine and bioactive dressing material, for the treatment of patients with various types of wounds, including burns, venous leg ulcers, ulcers of various etiologies, leg ulcers on the feet of diabetic, unhealed graft sampling sites, abscesses, boils, surgical wounds, necrotic process, post-operative and neonatal wound infection, and should be considered as an alternative to the usual methods of cure.