515 research outputs found

    Blocking c-MET/ERBB1 Axis Prevents Brain Metastasis in ERBB2+ Breast Cancer

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    Brain metastasis (BrM) remains a significant cause of cancer-related mortality in epidermal growth factor receptor 2-positive (ERBB2+) breast cancer (BC) patients. We proposed here that a combination treatment of irreversible tyrosine kinase inhibitor neratinib (NER) and the c-MET inhibitor cabozantinib (CBZ) could prevent brain metastasis. To address this, we first tested the combination treatment of NER and CBZ in the brain-seeking ERBB2+ cell lines SKBrM3 and JIMT-1-BR3, and in ERBB2+ organoids that expressed the c-MET/ERBB1 axis. Next, we developed and characterized an orthotopic mouse model of spontaneous BrM and evaluated the therapeutic effect of CBZ and NER in vivo. The combination treatment of NER and CBZ significantly inhibited proliferation and migration in ERBB2+ cell lines and reduced the organoid growth in vitro. Mechanistically, the combination treatment of NER and CBZ substantially inhibited ERK activation downstream of the c-MET/ERBB1 axis. Orthotopically implanted SKBrM3+ cells formed primary tumor in the mammary fat pad and spontaneously metastasized to the brain and other distant organs. Combination treatment with NER and CBZ inhibited primary tumor growth and predominantly prevented BrM. In conclusion, the orthotopic model of spontaneous BrM is clinically relevant, and the combination therapy of NER and CBZ might be a useful approach to prevent BrM in BC

    An Improved Air-Light Estimation Scheme for Single Haze Images Using Color Constancy Prior

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    Status of anaemia amongst women in India: Trend analysis of NFHS

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    The study was taken up to assess the changing trend in prevalence and severity of anaemia in women of reproductive age over the last 15 years by analyzing National Family Health Survey (NFHS) factsheet data and to draw a comparison between the prevalence of anaemia across different states/UTs of India. NFHS 3, 4 and 5 factsheets have been referred for the same. An increase in the prevalence of anaemia from 53% to 57% in all women aged 15-49 years is seen, 50.4% to 52.2% in pregnant women and 53.2% to 57.2% in non-pregnant women between NFHS 4 and 5. West Bengal has the highest prevalence of anaemia, followed by Tripura (67.2%) and Assam with 65.9% among women of 15-49 years.  NFHS 5 data shows an increase in the prevalence of anaemia in all women by 4%, 1.8% in pregnant women and a decrease by 6 % in non-pregnant women. Anemia Mukt Bharat campaign launched in 2019, was expected to reduce or inert the anaemia burden, but NFHS 5 data indicates a surge in anaemia incidences significantly across women of all age groups over the last five years. Hence, a requirement for revamping and implementing the programmes in a better way

    Examining birth preparedness and complication readiness: a systematic review and meta-analysis of pregnant and recently delivered women in India

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    Abstract Background Birth preparedness and complication readiness (BPCR) is an essential component of safe motherhood programs. This study aims to systematically identify and synthesize available evidence on birth preparedness and complication readiness among pregnant and recently delivered women in India. Methods The study followed PRISMA guidelines and used databases such as PubMed, Cochrane Library, and ProQuest. Joanna Briggs Institute [JBI] Tool was used for critical appraisal of studies. The meta-analysis was conducted using Comprehensive Meta-Analysis [CMA] tool and R studio software. Statistical heterogeneity was evaluated using visual inspection of the forest plot, Cochran’s Q test, and the I2 statistic results. Funnel plot and Egger’s tests were applied to explore the possibility of the publication bias in the studies [PROSPERO: CRD42023396109]. Result Thirty-five cross-sectional studies reported knowledge on one or more components of birth preparedness [BP], whilst knowledge on complication readiness [CR] or danger signs was reported in 34 included studies. Utilizing the random effect model, the pooled result showed that only about half of the women [49%; 95% CI: 44%, 53%] were aware on BPCR components. This result ranged between 15% [95% CI: 12%, 19%] to 79% [95% CI: 72%, 84%] in Maharashtra and Karnataka respectively [I2 = 94%, p =  90%] is observed across all components [p < 0.01]. The result of subgroup analysis indicated no significant difference in the proportion on BPCR among pregnant women [50%; 95% CI: 45%, 55%] and recently delivered women [54%; 95% CI: 46%, 62%]. However, the southern region of India indicates relatively better [56%; 95% CI: 45%, 67%] prevalence. Conclusion Our study highlights the low prevalence of BPCR in India and the factors associated with it. Scaling up cost-effective interventions like BPCR that have a positive overall effect is necessary. Authors strongly suggests that birth preparedness and complication readiness should be given utmost importance to reduce maternal morbidity and mortality to achieve the Sustainable Development Goals. Consideration should be given to fortifying existing resources, such as frontline workers and primary healthcare, as a strategic approach to augmenting the effectiveness of awareness initiatives

    Correlation between clinical features, biochemical parameters, and histopathological findings in women with patterned baldness: Study from North India

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    Background: Androgenetic alopecia (AGA) is a non-scarring alopecia with a characteristic pattern in genetically predisposed men and women. Hormonal abnormalities namely hyperandrogenism, hair cycle defects, genetic predisposition, and follicular miniaturization have been implicated as the causative factors for AGA. Aim: To analyze women with patterned hair loss and correlate their clinical findings with the histopathology and biochemical parameters. Materials and Methods: Female patients between 18 and 45 years of age with a history of hair loss on the crown, temporal area, and recession of hairline were clinically examined. These patients were then subjected to histopathological examination, and on confirmation of diagnosis of female pattern hair loss (FPHL), they were included in the study. Their morning blood sample was taken on 3rd–5th day of the menstrual cycle for hormonal analysis. The study was carried out on 30 patients and 30 age- and sex-matched controls. Results: A statistically significant difference was observed between the mean values of dehydroepiandrosterone sulfate, prolactin, androstenedione, and free triiodothyronine of cases and controls. The most common histopathological finding in our study was an increase in the percentage of telogen hair. Conclusion: The biochemical findings in our study corroborate the role of hyperandrogenism as one of the major etiological factors in FPHL with the role of adrenal androgens being central, and therefore all female patients with FPHL should be evaluated for underlying hormonal imbalances. The role of histopathology in FPHL can be used as a prognostic marker
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