216 research outputs found
Negative modulation of alkaline phosphatase and creatine kinase by homobrassinolide
Homobrassinolide is a plant hormone implicated in plant growth and development. Its effect on animal metabolism was less known to date. We have investigated its effect on the marker enzymes such as alkaline phosphatase and creatine kinase in selected rat tissues-brain, heart, liver, kidney, skeletal muscle and testis. Homobrassinolide was administered (66 and 330ng/ Kg body weight) intradermally in male albino wistar strain rats and changes in alkaline phosphatase and creatine kinase activities were measured. An overall reduction in both the enzyme activities occurred within 2hr of administration with few exceptions. The reaction rate constants for the enzyme activities were in the order 10-7 mM/min for alkaline phosphatase and 10-3 mM/min for creatine kinase. Time course studies indicated a decrease in enzyme activities as a function of time. Elevated hemoglobin content correlated with rise in erythrocyte number. Blood glucose level decreased by a percentage of 15.7 and 21.7 compared to control with the administration of 10μg and 50μg homobrassinolide respectively. Serum cholesterol content showed 15% decrease and 25% increase compared to control following 10μg and 50μg homobrassinolide administration. We conclude that homobrassinolide inhibited both the enzymes in the tissues and produced erythrocytosis, leukocytosis and hypoglycemia, while cellular phosphorylation status remained principally affected by this oxysterol in rat. Even though the physiological and pathological significance of these observations is not clear, it is suggested that 28-HB enriched diets may not be appropriate for higher energy related work activities.Keywords: Alkaline phosphatase; Creatine kinase; Homobrassinolide; Oxysterol; Phosphorylation; Rate constant
Unsteady Axisymmetric Rotational Flow of Dusty Elastico Viscous Liquid
This paper reports the flow of elastico-viscous liquid embedded with particles in an oscillating cylinder. Explicit expressions are obtained for the velocities of liquid and dust particles by the technique of Laplace transforms. Numerical computations of the velocity fields are carried out for different values of mass concentration and relaxation time of the dust particles and varying elastic elements in the liquid
Negative modulation of alkaline phosphatase and creatine kinase by homobrassinolide
Homobrassinolide is a plant hormone implicated in plant growth and development. Its effect on animal metabolism was less known to date. We have investigated its effect on the marker enzymes such as alkaline phosphatase and creatine kinase in selected rat tissues-brain, heart, liver, kidney, skeletal muscle and testis. Homobrassinolide was administered (66 and 330ng/ Kg body weight) intradermally in male albino wistar strain rats and changes in alkaline phosphatase and creatine kinase activities were measured. An overall reduction in both the enzyme activities occurred within 2hr of administration with few exceptions. The reaction rate constants for the enzyme activities were in the order 10-7 mM/min for alkaline phosphatase and 10-3 mM/min for creatine kinase. Time course studies indicated a decrease in enzyme activities as a function of time. Elevated hemoglobin content correlated with rise in erythrocyte number. Blood glucose level decreased by a percentage of 15.7 and 21.7 compared to control with the administration of 10μg and 50μg homobrassinolide respectively. Serum cholesterol content showed 15% decrease and 25% increase compared to control following 10μg and 50μg homobrassinolide administration. We conclude that homobrassinolide inhibited both the enzymes in the tissues and produced erythrocytosis, leukocytosis and hypoglycemia, while cellular phosphorylation status remained principally affected by this oxysterol in rat. Even though the physiological and pathological significance of these observations is not clear, it is suggested that 28-HB enriched diets may not be appropriate for higher energy related work activities.Keywords: Alkaline phosphatase; Creatine kinase; Homobrassinolide; Oxysterol; Phosphorylation; Rate constant
Ek Hathiya Dewal: A Rock-Cut Nagara Temple at Thal, Uttarakhand
The diminutive rock-cut temple at Thal was first reported in 1916, and later described briefly in 1975. So far, there has been no detailed description or drawings published, for the same. In this paper, we describe this small, but important monument, present measured drawings for the same, and speculate on the possible date of the rock-cut temple, based on comparison with similar monuments in the region and elsewhere
brains-py, A framework to support research on energy-efficient unconventional hardware for machine learning
Projections about the limitations of digital computers for deep learning models are leading to a shift towards domain-specific hardware, where novel analogue components are sought after, due to their potential advantages in power consumption. This paper introduces brains-py, a generic framework to facilitate research on different sorts of disordered nano-material networks for natural and energy-efficient analogue computing. Mainly, it has been applied to the concept of dopant network processing units (DNPUs), a novel and promising CMOS-compatible nano-scale tunable system based on doped silicon with potentially very low-power consumption at the inference stage. The framework focuses on two material-learning-based approaches, for training DNPUs to compute supervised learning tasks: evolution-in-matter and surrogate models.While evolution-in-matter focuses on providing a quick exploration of newly manufactured single DNPUs, the surrogate model approach is used for the design and simulation of the interconnection between multiple DNPUs, enabling the exploration of their scalability. All simulation results can be seamlessly validated on hardware, saving time and costs associated with their reproduction. The framework is generic and can be reused for research on various materials with different design aspects, providing support for the most common tasks requiredfor doing experiments with these novel materials.<br/
Advancing ethics review practices in AI research
The implementation of ethics review processes is an important first step for anticipating and mitigating the potential harms of AI research. Its long-term success, however, requires a coordinated community effort, to support experimentation with different ethics review processes, to study their effect, and to provide opportunities for diverse voices from the community to share insights and foster norms
Characterization of Pseudomonas aeruginosa isolates: Occurrence rates, antimicrobial susceptibility patterns, and molecular typing in the global SENTRY Antimicrobial Surveillance Program, 1997-1999
During 1997–1999, a total of 70,067 isolates (6631 Pseudomonas aeruginosa isolates) were analyzed in the SENTRY program by geographic region and body site of infection. The respiratory tract was the most common source of P. aeruginosa. P. aeruginosa isolation rates increased during the study interval. Europe was the only region to show a significant decline in β-lactam and aminoglycoside susceptibility rates. There was a reduction in the rates of susceptibility of Canadian isolates to imipenem and of Latin American isolates to meropenem. A total of 218 multidrug-resistant P. aeruginosa isolates (MDR-PSA; resistant to piperacillin, ceftazidime, imipenem, and gentamicin) were observed; MDR-PSA occurrence rates (percentages of all isolates) ranged from 8.2% (Latin America) to 0.9% (Canada). No antimicrobial inhibited >50% of MDR-PSA strains. Molecular characterization of selected, generally resistant strains was performed. Isolates showing unique ribogroups were found in Europe, Latin America, and the United States, but clonal spread was documented in several medical centers.A. C. Gales, R. N. Jones, J. Turnidge, R. Rennie, and R. Rampha
Targeting of SUMO substrates to a Cdc48-Ufd1-Npl4 segregase and STUbL pathway in fission yeast
In eukaryotes, the conjugation of proteins to the small ubiquitin-like modifier (SUMO) regulates numerous cellular functions. A proportion of SUMO conjugates are targeted for degradation by SUMO-targeted ubiquitin ligases (STUbLs) and it has been proposed that the ubiquitin-selective chaperone Cdc48/p97-Ufd1-Npl4 facilitates this process. However, the extent to which the two pathways overlap, and how substrates are selected, remains unknown. Here we address these questions in fission yeast through proteome-wide analyses of SUMO modification sites. We identify over a thousand sumoylated lysines in a total of 468 proteins and quantify changes occurring in the SUMO modification status when the STUbL or Ufd1 pathways are compromised by mutations. The data suggest the coordinated processing of several classes of SUMO conjugates, many dynamically associated with centromeres or telomeres. They provide new insights into subnuclear organization and chromosome biology, and, altogether, constitute an extensive resource for the molecular characterization of SUMO function and dynamics
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