Study on clinical patterns and risk factors in posterior circulation stroke

AIM : 1. To study the risk factors and clinical profile of patients admitted to Medical wards and intensive medical care unit of Tirunelveli Medical College Hospital with posterior circulation stroke. 2. To study the distribution of infarcts in different territories within the posterior circulation. 3. To compare the results with NEMC –Posterior circulation stroke registry and other available similar studies. MATERIALS AND METHODS : This was a cross sectional observation study conducted in all patients admitted to the General Medicine wards and Intensive Medical care unit with clinical features suggestive of posterior circulation stroke. All patients with evidence of posterior circulation stroke in clinical features and/or imaging were taken up for the study based on strict inclusion and exclusion criteria. Patients’ details regarding various risk factors and clinical features were recorded on a well thought out and carefully prepared proforma. The data was analysed and the results were compared with other available similar studies. RESULTS : The average age of patients in this study was 60.2 years. Of the 50 patients studied, 74 % were males and 26 % were females. Most of the patients were above 50 years of age. Hypertension was found to be the most important risk factor (64 %) followed by smoking, hyperlipidemia and diabetes. Smoking was found to be more important than hypertension among males (75 %). The most common clinical symptoms were nausea and vomiting (54%), giddiness (50%), motor weakness (44%), visual field defects (36%) and ataxia (42%). Cranial nerve involvement was noticed in 28 % of patients. The territory of infarct commonly involved was the distal territory (48%), which includes midbrain, thalamus, occipital and temporal lobes and SCA supplied cerebellum. These results were compared with NEMC – PCSR and various other studies. The results were comparable between these studies. CONCLUSIONS : All patients with brain ischemia deserve full evaluation of their brain for vascular lesions. Evaluation of risk factors and cardiac investigations are just as important as brain imaging, because a sizeable number of posterior circulation infarcts are cardio embolic, furthermore, brainstem infarcts, especially medullary infarcts can cause cardiac abnormalities. By controlling these risk factors, we can reduce the incidence of posterior circulation stroke to a certain extent

Feeding frequency and food utilization in the fry of estuarine mullet Liza parsia

The mullet (Liza parsia) fry were offered food at different frequencies and their growth, food consumption, and gross conversion efficiency were studied. Food consumption was affected by the feeding schedules adopted and multiple feeding per day provided better growth and food conversion. Thrice a day feeding is advocated

The influence of eyestalk ablation on the regulation Of haemolymph sodium concentration in the prawn Penaeus indicus H. Milne Edwards

Removal of the eyestalks of the prawn Penaeiis indiciis resulted in an increase in the haemolymph-sodium level. This increase was more evident in bilaterally ablated animals. Injection of eyestalk extract into destalked animals helped them to restore the level almost similar to that of normal animals

Chloride ion regulation in an eyestalk-ablated Prawn Penaeus indicus H. Milne Edwards

The removal of ihje \ eyestalks caused a substantial increase in the haemolymph- cihloride level in batches of prawns, Penaeus indicus, kept in laboratory and, when the eyestalk exitract was injected into them, the chloride level decreased again and reverted back | tp normal. The findings are deemed as a pointer to the possible role of eyestalk endocrines in ionic regulation

Breeding strategy shapes the composition of bacterial communities in female Nile tilapia reared in a recirculating aquaculture system

publishedVersio

Assessing the Length of Hospital Stay and Economic Outlay for Therapy in Chronic Kidney Disease Patients in a Tertiary Care Hospital

Background: To assess the LOS and costs for hospitalized CKD patients, to compare the pharmacoeconomic-related direct medical and non-medical costs among pre-dialysis and dialysis patients, and to determine the impact of CKD with other comorbidities on hospital LOS and cost. Methods:  An observational study was conducted on 160 patients admitted to the Nephrology Department. From the collected data, the direct and indirect costs of the treatment were analyzed using a standard questionnaire. Results: Dialysis was significantly correlated with total cost and total indirect cost rather than total direct cost. The statistical analysis showed that comorbidities and LOS were not significantly correlated, which shows that CKD alone is responsible for increased LOS. Both LOS and cost were significantly correlated (p-value 0.00). The stage of CKD and the type of treatment being used are the main determinants of LOS. Direct medical, direct non-medical, and total direct costs were significantly related to comorbidities (p-value 0.004, 0.005, and 0.058, respectively). Conclusion:  The study revealed that dialysis was significantly correlated with total cost and total indirect cost. Dialysis treatments, hospital stays, and other CKD-related requirements necessitated many time-consuming visits and procedures. According to the study's analysis of the data, there is no statistically significant relationship between comorbidities and LOS. This demonstrates that the lengthening of stays is solely attributable to CK

Highly Unsaturated Fatty Acid Synthesis in Atlantic Salmon: Characterization of ELOVL5- and ELOVL2-like Elongases

Fish species vary in their capacity to biosynthesize the n-3 long-chain polyunsaturated fatty acids (LC-PUFA) eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids that are crucial to the health of higher vertebrates. The synthesis of LC-PUFA involves enzyme-mediated fatty acyl desaturation and elongation. Previously, a cDNA for an elongase, now termed elovl5a, had been cloned from Atlantic salmon. Here we report on the cloning of two new elongase cDNAs: a second elovl5b elongase, corresponding to a 294 aa protein, and an elovl2-like elongase, coding for a 287 aa protein, characterized for the first time in a non-mammalian vertebrate. Heterologous expression in yeast showed that the salmon Elovl5b elongated C18 and C20 PUFA, with low activity towards C22, while Elovl2 elongated C20 and C22 PUFA with lower activity towards C18 PUFA. All three transcripts showed predominant expression in the intestine and liver, followed by the brain. Elongase expression showed differential nutritional regulation. Levels of elovl5b and particularly of elovl2, but not of elovl5a, transcripts were significantly increased in liver of salmon fed vegetable oils (VO) compared to fish fed fish oil (FO). Intestinal expression showed a similar pattern. Phylogenetic comparisons indicate that, in contrast to salmon and zebrafish, Acanthopterygian fish species lack elovl2 which is consistent with their neglible ability to biosynthesise LC-PUFA and to adapt to VO dietary inclusion, compared to predominantly freshwater salmonids. Thus the presence of elovl2 in salmon explains the ability of this species to biosynthesise LC-HUFA and may provide a biotechnological tool to produce enhanced levels of LC-PUFA, particularly DHA, in transgenic organisms

Challenges and Opportunities in Finfish Nutrition

Much of the criticism leveled at aquaculture (e.g., dependency on animal-derived feedstuffs, nutrient-laden effluent discharges, and increased organic contamination in edible products) can be traced to the feeds in use. Accordingly, finfish nutritionists are being challenged to formulate feeds that not only meet the nutritional requirements of livestock but also minimize production costs, limit environmental impacts, and enhance product quality. These challenges not only add considerable complexity to finfish nutrition but also afford opportunities to avoid some of the mistakes made by other industries in the past. From a review of the current status of finfish nutrition with respect to major nutrient classes, we comment on future opportunities and promising avenues of research. Alternative protein sources, specifically those derived from marine bycatch, plants, and microbes, are discussed, as well as methods to facilitate their implementation in finfish feeds. Dietary lipid, its role in fish bioenergetics and physiology, and quality of aquaculture products is reviewed with special emphasis on alternative lipid sources and finishing diets. Carbohydrates and fiber are discussed in terms of nutrient-sparing, least-cost diet formulation and digestive physiology. Micronutrients are reviewed in terms of current knowledge of requirements and, along with other dietary immunostimulants, are given further consideration in a review of nutriceuticals and application in finfish feeds. The status of nutritional research in new aquaculture species is also outlined. By integrating classical approaches with emerging technologies, dietary formulations, and species, finfish nutritionists may identify means to increase production efficiency and sustainability and provide for the continued success of aquaculture

The impact of big data analytics on firms’ high value business performance

Big Data Analytics (BDA) is an emerging phenomenon with the reported potential to transform how firms manage and enhance high value businesses performance. The purpose of our study is to investigate the impact of BDA on operations management in the manufacturing sector, which is an acknowledged infrequently researched context. Using an interpretive qualitative approach, this empirical study leverages a comparative case study of three manufacturing companies with varying levels of BDA usage (experimental, moderate and heavy). The information technology (IT) business value literature and a resource based view informed the development of our research propositions and the conceptual framework that illuminated the relationships between BDA capability and organizational readiness and design. Our findings indicate that BDA capability (in terms of data sourcing, access, integration, and delivery, analytical capabilities, and people’s expertise) along with organizational readiness and design factors (such as BDA strategy, top management support, financial resources, and employee engagement) facilitated better utilization of BDA in manufacturing decision making, and thus enhanced high value business performance. Our results also highlight important managerial implications related to the impact of BDA on empowerment of employees, and how BDA can be integrated into organizations to augment rather than replace management capabilities. Our research will be of benefit to academics and practitioners in further aiding our understanding of BDA utilization in transforming operations and production management. It adds to the body of limited empirically based knowledge by highlighting the real business value resulting from applying BDA in manufacturing firms and thus encouraging beneficial economic societal changes

Long -term feeding with high plant protein based diets in gilthead seabream (Sparus aurata, L.) leads to changes in the inflammatory and immune related gene expression at intestinal level

[EN] Background: In order to ensure sustainability of aquaculture production of carnivourous fish species such as the gilthead seabream (Sparus aurata, L.), the impact of the inclusion of alternative protein sources to fishmeal, including plants, has been assessed. With the aim of evaluating long-term effects of vegetable diets on growth and intestinal status of the on-growing gilthead seabream (initial weight = 129 g), three experimental diets were tested: a strict plant protein-based diet (VM), a fishmeal based diet (FM) and a plant protein-based diet with 15% of marine ingredients (squid and krill meal) alternative to fishmeal (VM+). Intestines were sampled after 154 days. Besides studying growth parameters and survival, the gene expression related to inflammatory response, immune system, epithelia integrity and digestive process was analysed in the foregut and hindgut sections, as well as different histological parameters in the foregut. Results: There were no differences in growth performance (p = 0.2703) and feed utilization (p = 0.1536), although a greater fish mortality was recorded in the VM group (p = 0.0141). In addition, this group reported a lower expression in genes related to pro-inflammatory response, as Interleukine-1 beta (il1 beta, p = 0.0415), Interleukine-6 (il6, p = 0.0347) and cyclooxigenase-2 (cox2, p = 0.0014), immune-related genes as immunoglobulin M (igm, p = 0.0002) or bacterial defence genes as alkaline phosphatase (alp, p = 0.0069). In contrast, the VM+ group yielded similar survival rate to FM (p = 0.0141) and the gene expression patterns indicated a greater induction of the inflammatory and immune markers (il1 beta, cox2 and igm). However, major histological changes in gut were not detected. Conclusions: Using plants as the unique source of protein on a long term basis, replacing fishmeal in aqua feeds for gilthead seabream, may have been the reason of a decrease in the level of different pro-inflammatory mediators (il1 beta, il6 and cox2) and immune-related molecules (igm and alp), which reflects a possible lack of local immune response at the intestinal mucosa, explaining the higher mortality observed. Krill and squid meal inclusion in vegetable diets, even at low concentrations, provided an improvement in nutrition and survival parameters compared to strictly plant protein based diets as VM, maybe explained by the maintenance of an effective immune response throughout the assay.The research has been partially funded by Vicerrectorat d'Investigacio, Innovacio i Transferencia of the Universitat Politecnica de Valencia, which belongs to the project Aquaculture feed without fishmeal (SP20120603). 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