56 research outputs found

    In vitro multiplication protocol for Curcuma mangga : Studies on carbon, cytokinin source and explant size

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    Mango ginger (Curcuma mangga Valeton & Zijp.) is an underutilized rhizomatous species that has been valued in tropical Asian countries as a source of vegetable, spice, salad, medicine, and essential oil. This species is hardy and requires less care for obtaining good yields. Rhizomes are the commonly used propagules for the species, which are also the economic part of the crop. Huge quantity of seed rhizomes is required to promote this crop in larger areas. An efficient in vitro multiplication protocol is one of the options to meet the planting material requirement. Effects of carbon source (glucose, fructose and sucrose) and concentration (1 and 3%, w/v), cytokinins (BAP and meta topolin) and concentration (1 mg/L and 2 mg/L), size of explants (one/ two/ three bud) and IBA treatment (0, 250, 500 and 1,000 mg/L) for concurrent ex vitro rooting cum hardening were studied. Results revealed that for facilitating efficient multiplication, the medium should be supplemented with glucose (3%) as a carbon source and meta topolin (1 mg/L) as cytokinin. Two-bud explant should be used for subculture as it promoted superior shoot proliferation. Concurrent ex vitro rooting cum hardening was possible even without auxin treatment. The present protocol could be useful for large-scale production of quality planting material of this underexploited tropical species

    Air layering in cinnamon (Cinnamomum verum L.) under wet humid tropical conditions

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    Cinnamon is a cross pollinated species and seed propagation has resulted in development of considerable variability in growth, yield and quality among the populations. Air layering has been considered as one of the efficient methods of multiplication in cinnamon. However, the success of layering varies greatly depending on the local environmental conditions. In the present investigation, air layering was performed at 20 days interval during rainy season (July 3rd to October 11th) of two consecutive years in Bay islands. Result revealed that first week of July was the most suitable time for air layering in cinnamon as it supported better rooting percentage (87.5%)

    Study of prevalence and socio-demographic determinants of pterygium patients attending at a tertiary care teaching hospital of Western Maharashtra, India

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    Background: The pterygium is known to cause refractive errors including astigmatism, which can have negative impact on the vision. The present study was carried out to find out the prevalence and socio-demographic determinants of pterygium patients attending Pravara rural hospital, Loni, Maharashtra, India.Methods: A cross-sectional study was conducted in outpatient department of ophthalmology in Pravara rural hospital, Loni. A total of 1910 patients of various ocular morbidities were registered during the studied period in the department of ophthalmology, among these, 100 patients who had pterygium were reviewed. All 100 patients were examined by torch and slit lamp. Data were analysed statistically using percentage and proportions whenever necessary.Results: Out of the 100 pterygium patients, 48% were in the age group of >60 years, followed by 32% in the age group of 51-60 years. In relation to occupation, maximum 82% patients were farm labours followed by 11% were house workers. Majority (62%) having unilateral, while (38%) was having bilateral pterygium. All cases of pterygium were nasal.Conclusion: People who work outdoors are subjected to increase U.V. exposure. So people must be aware of this and they must take appropriate precautions like wearing protective glasses and caps etc.

    Spectrum of vulvar lesions: patient’s anxiety, clinician’s concern and pathologist’s diagnostic challenge

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    Background: A wide variety of inflammatory, premalignant and malignant lesions can occur on the vulva. Some of the lesions are limited to the vulva, while some also involve other parts of the body. Although vulvar diseases can cause a significant issue in the patients, they are less commonly discussed than those of cervix, uterus and ovary. Most of the asymptomatic lesions remain un-noticed, and are seen during routine gynecological checkups. Common complaints in symptomatic lesions are lumps, discomfort, itching and pain. Since the symptoms are nonspecific; determining the location of the lesion can assist with the diagnosis. Being a genital part with skin covering on outer aspect and mucosal lining inside, it is associated with various dermatological, nutritional, and hormonal as well as sexually transmitted diseases. The present study thus was conducted to categorize vulvar lesions based on their histological diagnosis and also to study the morphological spectrum of precursor lesions for malignancy.Methods: Present study includes all types of vulvar lesions sent for pathological study in the Department of pathology, at GMC Nagpur over the period of one year.Results: Total 34 lesions were studied including a wide diagnostic range from inflammatory, dermatological to benign, premalignant and malignant. Inflammatory lesions including various infections and LSA (Lichen sclerosus atrophicus) were the most commonly seen lesions along with collection of neoplastic lesions.Conclusions: Proper diagnostic categorization of the lesions is essential for initiating therapy and reducing patient’s anxiety. Morphology of these lesions along with their diagnostic significance is discussed

    KinFams: De-Novo Classification of Protein Kinases Using CATH Functional Units

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    Protein kinases are important targets for treating human disorders, and they are the second most targeted families after G-protein coupled receptors. Several resources provide classification of kinases into evolutionary families (based on sequence homology); however, very few systematically classify functional families (FunFams) comprising evolutionary relatives that share similar functional properties. We have developed the FunFam-MARC (Multidomain ARchitecture-based Clustering) protocol, which uses multi-domain architectures of protein kinases and specificity-determining residues for functional family classification. FunFam-MARC predicts 2210 kinase functional families (KinFams), which have increased functional coherence, in terms of EC annotations, compared to the widely used KinBase classification. Our protocol provides a comprehensive classification for kinase sequences from >10,000 organisms. We associate human KinFams with diseases and drugs and identify 28 druggable human KinFams, i.e., enriched in clinically approved drugs. Since relatives in the same druggable KinFam tend to be structurally conserved, including the drug-binding site, these KinFams may be valuable for shortlisting therapeutic targets. Information on the human KinFams and associated 3D structures from AlphaFold2 are provided via our CATH FTP website and Zenodo. This gives the domain structure representative of each KinFam together with information on any drug compounds available. For 32% of the KinFams, we provide information on highly conserved residue sites that may be associated with specificity.Adeyelu T, Bordin N, Waman VP, Sadlej M, Sillitoe I, Moya-Garcia AA, Orengo CA. KinFams: De-Novo Classification of Protein Kinases Using CATH Functional Units. Biomolecules. 2023; 13(2):277. https://doi.org/10.3390/biom1302027

    Hydrogenated Nanocrystalline Silicon Thin Films Prepared by Hot-Wire Method with Varied Process Pressure

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    Hydrogenated nanocrystalline silicon films were prepared by hot-wire method at low substrate temperature (200∘C) without hydrogen dilution of silane (SiH4). A variety of techniques, including Raman spectroscopy, low angle X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, atomic force microscopy (AFM), and UV-visible (UV-Vis) spectroscopy, were used to characterize these films for structural and optical properties. Films are grown at reasonably high deposition rates (>15 Å/s), which are very much appreciated for the fabrication of cost effective devices. Different crystalline fractions (from 2.5% to 63%) and crystallite size (3.6–6.0 nm) can be achieved by controlling the process pressure. It is observed that with increase in process pressure, the hydrogen bonding in the films shifts from Si–H to Si–H2 and (Si–H2)n complexes. The band gaps of the films are found in the range 1.83–2.11 eV, whereas the hydrogen content remains <9 at.% over the entire range of process pressure studied. The ease of depositing films with tunable band gap is useful for fabrication of tandem solar cells. A correlation between structural and optical properties has been found and discussed in detail

    Global, regional, and national age-sex-specific mortality for 282 causes of death in 195 countries and territories, 1980-2017: a systematic analysis for the Global Burden of Disease Study 2017.

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    BACKGROUND: Global development goals increasingly rely on country-specific estimates for benchmarking a nation's progress. To meet this need, the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2016 estimated global, regional, national, and, for selected locations, subnational cause-specific mortality beginning in the year 1980. Here we report an update to that study, making use of newly available data and improved methods. GBD 2017 provides a comprehensive assessment of cause-specific mortality for 282 causes in 195 countries and territories from 1980 to 2017. METHODS: The causes of death database is composed of vital registration (VR), verbal autopsy (VA), registry, survey, police, and surveillance data. GBD 2017 added ten VA studies, 127 country-years of VR data, 502 cancer-registry country-years, and an additional surveillance country-year. Expansions of the GBD cause of death hierarchy resulted in 18 additional causes estimated for GBD 2017. Newly available data led to subnational estimates for five additional countries-Ethiopia, Iran, New Zealand, Norway, and Russia. Deaths assigned International Classification of Diseases (ICD) codes for non-specific, implausible, or intermediate causes of death were reassigned to underlying causes by redistribution algorithms that were incorporated into uncertainty estimation. We used statistical modelling tools developed for GBD, including the Cause of Death Ensemble model (CODEm), to generate cause fractions and cause-specific death rates for each location, year, age, and sex. Instead of using UN estimates as in previous versions, GBD 2017 independently estimated population size and fertility rate for all locations. Years of life lost (YLLs) were then calculated as the sum of each death multiplied by the standard life expectancy at each age. All rates reported here are age-standardised

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    Not AvailableThe quest for prospecting crop wild relatives in search of traits of economic importance has been gaining importance worldwide. Endemic species of such significance need to be given urgent attention for conservation, not only for their future potential uses in modern day agriculture but also due to the roles they play in the ecosystem of their areas of origin and rather narrow distribution. In this research, various aspects of assisted regeneration viz. pretreatment, substrate, storage life, stage for transplanting and post-transplanting survival were studied in an endemic, threatened wild banana species (Musa indandamanensis). Based on germination percentage, growth parameters, seedling vigour index and seedling survival, treatment of freshly extracted seeds with 0.1% KNO3 for 24 h prior to sowing in vermicompost as substrate was recommended for mass multiplication of the species. Seed storage behavior was studied in the species, which suggested that the species exhibits intermediate seed storage behavior. Seed viability was reduced over time especially after three months of storage and corresponding reduction in seedling vigour index was also recorded. Based on photosynthetic pigments analysis, eight leaf stage was found to be the best for transplanting the seedlings in the field with 100% survival. The species was conserved in field gene bank and Biological Park for facilitating its characterization and subsequent utilization.DBT-BioCARe (19575

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    Not AvailableNot AvailableDBT-BioCARe (19575
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