Our current study aimed to evaluate the chemotherapeutic efficacy of baicalein (BE) in Swiss albino mice, which is exposed to benzo(a)pyrene [B(a)P] for its ability to alleviate mitochondrial dysfunction and systolic failure. Here, we report that oral administration of B(a)P (50 mg/kg body weight)‐induced pulmonary genotoxicities in mice was assessed in terms of elevation in reactive oxygen species (ROS) generation and DNA damage in lung mitochondria. MDA‐DNA adducts were formed in immunohistochemical analysis, which confirmed nuclear DNA damage. mRNA expression levels studied by RT‐PCR analysis of voltage‐dependent anion channel (VDAC) and adenine nucleotide translocase (ANT) were found to be significantly decreased and showed a marked increase in membrane permeability transition pore (MPTP) opening. Accompanied by up‐regulated Bcl‐xL and down‐regulated Bid, Bim and Cyt‐c proteins studied by immunoblot were observed in B(a)P‐induced lung cancer–bearing animals. Administration of BE (12 mg/kg body weight) significantly reversed all the above deleterious changes. Moreover, assessment of mitochondrial enzyme system revealed that BE treatment effectively counteracts B(a)P‐induced down‐regulated levels/activities of isocitrate dehydrogenase, α‐ketoglutarate dehydrogenase, succinate dehydrogenase, malate dehydrogenase, NADH dehydrogenase, cytochrome‐C‐oxidase and ATP levels. Restoration of mitochondria from oxidative damage was further confirmed by transmission electron microscopic examination. Further analysis of lipid peroxidation, superoxide dismutase, catalase, glutathione peroxidase, glutathione‐S‐transferase, glutathione reductase, reduced glutathione, vitamin E and vitamin C in lung mitochondria was carried out to substantiate the antioxidant effect of BE. The overall data conclude that chemotherapeutic efficacy of BE might have strong mitochondria protective and restoration capacity in sub‐cellular level against lung carcinogenesis in Swiss albino mice.

Objective. To assess nurses’ knowledge and perceptions towards mental illness.Methods. This was a cross-sectional descriptive study conducted among 126 randomly selected nurses those are working under District Mental Health program in Karnataka (India). The data was collected through self-reported questionnaires Using the modified version of Public perception of mental illness questionnaire and Attitude Scale for Mental Illness.Results. The findings revealed that majority of the subjects were women (74.4%), Hindus (92.1%) and were from rural background (69.8%). The mean Knowledge score 10.8±1.6 adequate knowledge (maximum possible =12) among 91% of the subjects, and 52% of them hold negative attitudes towards people with mental illness (88.9±13.6). While majority of the subjects hold negative attitudes in ‘Separatism’ (53.5%), ‘Stereotyping’ (73%), ‘Benevolence’ (54%), ‘Pessimistic prediction’ (53%) domains, they hold positive attitudes in ‘Restrictiveness’ (88%) and ‘Stigmatization’ (72%) domains. Women than men endorsed positive attitudes towards persons with mental illness in Stereotyping’ (p<0.001), ‘Restrictiveness’ (p<0.01), ‘Benevolence’ (p<0.001) and ‘Pessimistic prediction’ (t= 2.22, p<0.05) domains. Similarly, Auxiliary Nursing Midwifery found to be less restrictive (p<0.05), more benevolent (p<0.001) and less pessimistic (p<0.05) compared to nurses with higher education (General Nursing and Midwifery and Bachelor of Science in Nursing).Conclusion. The present study showed adequate knowledge on mental illness among nurses. Yet they hold stigmatizing and negative attitudes towards mental illness. Hence, it is an urgent priority to develop and implement educational programs to inculcate positive attitudes towards people with mental illness to provide optimal care to this vulnerable population. How to cite this article: Gandhi S, Poreddi V, Govindan R, Jothimani G, Anjanappa S, Sahu M, et al. Knowledge and perceptions of Indian primary care nurses towards mental illness. Invest. Educ. Enferm. 2019; 37(1):e06.