Bone marrow evaluation of patients having pancytopenia at tertiary care center, M. Y. hospital, Indore, India: one-year study

Background: Pancytopenia is reduction of all three formed elements of blood below the normal reference range leading to anemia, leucopenia, thrombocytopenia. Bone marrow aspiration is extremely helpful in evaluating the cause of pancytopenia by cellularity and cytology in order to prevent grave complications and mortality as the underlying pathology determines the management and prognosis of the patients. Aim of research study was to evaluate the patients having pancytopenia at tertiary care center, M.Y.H. Hospital, Indore, India.Methods: The present study was carried out over a period of one year from 2017 to 2018, in the Department of Pathology, M. Y. Hospital, Indore. During this period, a total of 109 bone marrow smears were examined. Out of these, 42 cases had the clinical presentation of pancytopenia. A detailed study was done regarding clinical examination and hematological and radiological investigations.Results: In this study 42 cases of pancytopenia were examined over a period of one year. The commonest cause of pancytopenia was megaloblastic anemia (33.34%) followed by aplastic anemia (19.05%). Others includes myelodysplastic syndrome (MDS), acute leukemia, erythroid hyperplasia and plasmacytosis.Conclusions: Bone marrow aspiration can diagnose majority of the cases of pancytopenia. Megaloblastic anemia and aplastic anemia are the commonest causes of pancytopenia

Seroprevalence of HIV in blood donors at tertiary care center, M.Y.H. Indore, India

Background: Transfusion of blood has become an important mode of transmission of infections such as human immunodeficiency virus and hepatitis B to the recipients. Blood transfusion is a boon in medical era if properly screened. The aim of study was to determine the seroprevalence of HIV donors in blood bank at M.Y.H. Indore.Methods: The study was conducted in the blood bank, M.Y.H. Hospital, Indore. Total 115775 donors attending blood bank were included in the study. All the donor samples were screened for detection of antibodies for human immunodeficiency virus by microwell Enzyme Linked Immunosorption Assay (ELISA) method. The seroprevalence of HIV infection among the donors was determined over a period of five years since January 2013 to December 2017.Results: Total 115775 blood donors were recorded. Out of total 115775 blood donors included in the study, replacement donor were 10766 (9.29%) while voluntary donor were 105009 (90.70%). In the duration of five-year study period, total 80 cases (0.06%) were reactive to HIV. Out of total 115775 blood donors included in the study, maximum cases i.e. 22 (0.08%) cases were found to be positive for HIV infection in year 2017. Out of 10766 replacement donors included in the study, 64 cases (0.59%) were reactive to HIV infection. While out of 105009 voluntary donors, 16 cases (0.01%) were found to be reactive to HIV infection. Voluntary donors are more as compared to the replacement donors. Number of HIV positive patients were found to more in replacement donor as compared to the voluntary donors.Conclusions: The seroprevalence of HIV is low in this study and hence it is concluded that the more the number of voluntary donors, the less the number of HIV positive cases. Voluntary donors can be motivated by proper health education and high quality screening programs

Power Transformer Monitoring System

Monitoring and diagnosis of power as well as distribution transformer is the most important process for extending the life of transformer. A transformer monitoring system is already developed by Siemens which is based on SCADA system. But that system can’t be used in small scale industry because most of the industry lacks in automation. This paper presents the details of a monitoring system which is a standalone device equipped on every transformer individually and this device is able to detect phase failure, unbalanced voltage, and earth fault. Apart from these, the device can also monitor the oil level and oil temperature. The main aim of research is to develop this product and make available on economic rates.

The production of a lyotropic liquid crystal coated powder precursor through twin screw extrusion.

The twin screw extrusion technique has been explored to produce lyotropic liquid crystal coated powder precursor by exploiting Pluronic F127 thermoreversible gelation property to get powder precursor without granular aggregates or with less compacted granular aggregates. The highly soluble chlorpheniramine maleate loaded in Pluronic F127 solution coated MCC particles prepared through twin screw extrusion was examined to produce the cubic phase (gel) for the development of controlled release formulation and for coating of very fine particles which cannot be achieved by traditional bead coaters. Controlled release formulations are beneficial in reducing the frequency of administration of highly soluble drugs having short half life and also to address the problem of polypharmacy in old age patients by reduction of dosage frequency. An unusual refrigerated temperature (5 C) profile for twin screw extrusion was selected based on the complex viscoelastic flow behaviour of Pluronic F127 solution which was found to be highly temperature sensitive. The Pluronic F127 solution was found to be Newtonian in flow and less viscoelastic at low temperature, such that low temperature (5¿C) conditions were found to be suitable for mixing and coating the MCC particles to avoid compacted aggregates. At higher temperatures (35-40¿C) Pluronic F127 solution exhibited shear thinning and prominent viscoelasticity, properties which were exploited to force CPM containing Pluronic F127 solution to stick over the MCC surface. This was achieved by elevating the temperature of the last zone of the extrusion barrel. It was found that to avoid compacted aggregates the MCC must be five times the weight of the Pluronic F127 solution and processed at a screw speed of 400 RPM or above at refrigerated temperature. Processing was not found to be smooth at ambient temperature with frictional heat and high torque generation due to significant compaction of coated particles which can be attributed to the elastic behaviour of Pluronic F127 solution at temperatures between ambient to typical body temperature. PLM images confirmed the cubic phase formation (gel) by Pluronic F127 coating which was found to be thick with maximum Pluronic F127 concentration (25%). SEM images showed smoothing of surface topography, and stretching and elongation of MCC fibres after extrusion which is indicative of coating through extrusion processing. Plastic deformation was observed for the lower Pluronic F127 concentration and higher MCC proportions. There was a significant decrease in work done for cohesion by the powder flow analyser observed in the batches with more aggregates compared with batches with least aggregates. A regression analysis study on factorial design batches was conducted to investigate the significant independent variables and their impact on dependent variables for example % torque, geometric mean diameter and work done for cohesion, and to quantitatively evaluate them. From the regression analysis data it was found that the coefficient of determination for all three dependent variables was in the range of 55-62%. The pharmaceutical performance of the prepared coated LLC precursor through twin screw extrusion in terms of controlled release was found to be very disappointing. Almost 100% chlorpheniramine maleate was released within 10-15mins, defined as providing burst release. The MDSC method was developed within this work to detect Pluronic F127 solution cubic phase formation. The MDSC method was developed to consider sample size, effect of heating and cooling, sample heat capacity, and the parameters for highest sensitivity which can be followed by sample accurately without the phase lag to produce accurate repeatable results

SYNTHESIS AND ANTIOXIDANT ACTIVITY OF NOVEL 2-ARYL SUBSTITUTED BENZOTHIAZOLE DERIVATIVES

Objective: A series of 2-aryl substituted benzothiazole was designed and synthesized with various substituted benzoic acid. 2-mercaptobenzothiazole and thionyl chloride also used to get carbothiaote. The present study was carried to assess the pharmacological potential towards antioxidant activity of 2-aryl substituted benzothiazole derivatives. Methods: The antioxidant activity of the synthesized compounds was evaluated by 2, 2-diphenyl-1-picrylhydrazyl (DPPH), and superoxide radical scavenging assay methods. Results: Compounds showed significant radical scavenging potential due to the presence of electron donating substituent. Conclusion: These indicate that benzothiazole derivatives showed the defence mechanism to prevent formation of excess free radicals

Cyclocarbonylative Sonogashira Reactions of 1-Ethynylbenzyl Alcohols: Synthesis of 1-Carbonylmethylene-1,3-Dihydroisobenzofurans

In this work, we present a carbonylative Sonogashira reaction of o-ethynyl benzyl alcohols and aryl iodides, followed by a cyclization process to selectively give carbonylmethylene isobenzofurans in high yields and in an atom-economic fashion. The reaction can be carried out in the absence of CuI, with a small amount of PdCl2(PPh3)2 (0.2–0.5 mol-%), using aryl iodides bearing both electron-withdrawing and electron-donating groups. Of the two possible stereoisomeric products, Z-isobenzofuran derivatives were obtained as major products. But, when the reaction was extended to a secondary alcohol, an interesting switch in stereoselectivity was observed

Palladium- and base-free synthesis of conjugated ynones by cross-coupling reactions of alkynylboronates with acid chlorides mediated by CuCl

Alkynylboronates can be employed as a practical and versatile precursor for a variety of pi-conjugated organic compounds. In the presence of Cu(I) salt, cross-coupling reactions of acid chlorides with alkynylboronates giving rise to the corresponding conjugated ynones takes place readily in aprotic polar solvents such as DMI under neutral conditions

Soil information system: use and potentials in humid and semi-arid tropics

The articles presented in this special section emanated from the researches of consortium members of the National Agricultural Innovative Project (NAIP, Component 4) of the Indian Council of Agricultural Research (ICAR), New Delhi. These researches have helped develop a soil information system (SIS). In view of the changing scenario all over the world, the need of the hour is to get assistance from a host of researchers specialized in soils, crops, geology, geography and information technology to make proper use of the datasets. Equipped with the essential knowledge of data storage and retrieval for management recommendations, these experts should be able to address the issues of land degradation, biodiversity, food security, climate change and ultimately arrive at an appropriate agricultural land-use planning. Moreover, as the natural resource information is an essential prerequisite for monitoring and predicting global environmental change with special reference to climate and land use options, the SIS needs to be a dynamic exercise to accommodate temporal datasets, so that subsequently it should result in the evolution of the soil information technology. The database developed through this NAIP would serve as an example of the usefulness of the Consortium and the research initiative of ICAR involving experts from different fields to find out the potentials of the soils of humid and semi-arid bioclimatic systems of the country