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What is new in Hypertension of Mexico 2018? -Impact of the new classification of high blood pressure in adults from American College of Cardiology/American Heart Association (ACC/AHA)

Published on: 7th March, 2018

OCLC Number/Unique Identifier: 7379463999

The new report of American College of Cardiology/American Heart Association task force on Clinical Practice Guidelines for High Blood Pressure in Adults was published online ahead of print November 13, 2017. The new American recommendation was focused on the criteria to define Hypertension. 130/80 mmHg or more is now considered as the new cut off point to define Hypertension. It is not new if we consider cumulative evidence in the las two decades has been broken the idea to consider 140/90 mmHg as the point to start medical actions. Thus, in México with current ACC/AHA definition it is estimated today around 48 million of adult hypertensive population. In the Mexican Institute of Social Security (IMSS) several strategies has been developed to improve prevention as the key action to confront non communicable chronic disease including hypertension. This updated guideline from ACC/AHA is an extraordinary opportunity to reinforce our preventive programs to high blood pressure control. In this brief report we analyze the epidemiological situation in Mexico and its possible consequences of the new criteria for hypertension diagnosis. The main current strategies that are applied into the IMSS to confront cardiovascular risk factors are directed to prevention. The IMSS is prepared to attend situations as the change of criteria diagnoses in Hypertension and new preventive models are in progression.
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A Pancreatic Neuroendocrine Tumor with an Unusual Flush

Published on: 14th August, 2018

OCLC Number/Unique Identifier: 7844643436

A 60-year-old man presented with an unusual history of lower limb flushing. A CT scan suggested a pancreatic neuroendocrine tumor. After a robotic distal pancreatectomy, his symptoms completely resolved. The tumor was positive for synaptophysin and chromogranin. This case emphasizes the importance of recognizing atypical features in patients, especially with an unusual skin presentation that might indicate rare tumor types.
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From Ashes to Life - The Indestructible D. radiodurans

Published on: 15th July, 2024

Deinococcus radiodurans (D. radiodurans) was accidentally discovered in 1956 when cans of ground meat were exposed to massive doses of ionizing gamma radiation, intended to kill dangerous bacteria. The bacterium can survive doses of radiation, even up to 1,000 times that which is deadly to humans. Among biologists and biophysicists, D. radiodurans is often humorously called “Conan the Bacterium.” This extreme radioresistance of the bacterium has been attributed to its ability to protect the proteome from ROS, which originates from water radiolysis, and also to carry out the effective repair of a large amount of DNA damage.
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A pilot study on treatment of infantile cystinosis with mesenchymal stem cells

Published on: 9th December, 2019

OCLC Number/Unique Identifier: 9272394663

Infantile cystinosis is a lysosomal storage disease leading to end stage kidney disease at early ages. There is no effective treatment and patients require long term dialysis or kidney transplant for survival. We present our experience on three affected children who received HLA matched allogeneic stem cell transplant. The protocol used was novel and designed to promote engraftment. The primary endpoint was safety for treatment related mortality or morbidity; All three children survived without serious adverse effects during extended follow up for over 4 years. Although we could not prove engraftment, all three children met secondary end point of sustained target functions over a 6 month follow-up. Further studies are warranted to further evaluate safety and efficacy of MSC treatment for infantile cystinosis.
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Nano-formulations for Ophthalmic Treatments

Published on: 29th December, 2017

OCLC Number/Unique Identifier: 7325061328

Ocular disorders encompass a multitude of diseases that are unique in their cause, therapy and degree of severity. Due to distinctive morphology of the eye, efficient ocular drug delivery has proven to be a difficult task. Current treatments of ophthalmological diseases include the usage of both intrusive as well as nonintrusive methods such as injections, eye drops, ointments, gels etc. The current state of the art drug delivery methods are associated with low bioavailability and therefore nanotechnology based drug delivery approached are evolving as for improving the therapeutic index of currently used drugs against variety of ocular disorders. This review highlights the recent developments in nano-formulations for ophthalmic treatment and also offers discussions towards the future prospectus of nano-formulations in the mainstream of ophthalmic diseases.
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Diazepam Withdrawal Expression is related to Hippocampal NOS-1 Upregulation

Published on: 8th January, 2018

OCLC Number/Unique Identifier: 7325438145

Background: Benzodiazepines are usually prescribed for anxiety and sleep disorders in a long-term fashion that may cause drug dependence. Discontinuation after prolonged administration may lead to withdrawal expression, being anxiety the most predominant sign. It has been described that a context-dependent associative learning process underlies diazepam dependence. Nitric oxide is a crucial player in learning and memory processes, hippocampal transmission, as well as in benzodiazepines withdrawal. Considering that previous results from our laboratory showed an increase in hippocampal functional plasticity only in diazepam dependent rats, the aim of the present investigation is to determine whether diazepam dependence could alter neuronal nitric oxide synthase enzyme (NOS-1) expression within the hippocampus, by using western blot. Results: chronic diazepam-treated animals that developed dependence showed increase in NOS-1 expression in dorsal, but not in ventral hippocampus, while no-dependent or control animals presented similar NOS-1 protein levels. Conclusion: withdrawal from long-term diazepam exposure could be associated to increased nitric oxide neurotransmission within dorsal hippocampus induced by NOS-1 over-expression. This mechanism could underlie the improved hippocampal synaptic transmission previously observed in diazepam withdrawn animals. Confirmatory experiments need to be addressed to determine the mechanisms by which nitric oxide participates in benzodiazepines withdrawal in order find new molecular targets to develop pharmacological tools to prevent the withdrawal syndrome
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Bio Avengers: How do Endophytic Microorganisms Alter a Plant's Defense Mechanisms?

Published on: 20th February, 2024

Endophytic microbes i.e. bacteria, fungi, and actinomycetes live inside the plant tissues without causing any harmful effect on them. Recently, research has been conducted on endophytic microbes to enhance agriculture and environmental sustainability. Endophytes stabilize a close association with their host, which leads to major changes in plant physiology. Endophytic microbes and pathogens use the same strategies for entering the host cell. This condition may create competition between the endophytes and the pathogen. Therefore, host plants develop strategies to allow the entry of specific microorganisms. Additionally, endophytic microorganisms may temper their own genetic structure to survive and avoid the host defence machinery. The plant-endophyte symbionts promote direct and indirect defences to host plants. This plays an essential role in modulating plant defences against various stresses, particularly biotic stress. In this minireview, we highlight the interaction of endophytic microbes with their host.  As well as the role of endophytic microbes in the enhancement of plant defence systems.
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Thermoelectric Materials Based on Lead Telluride and Prospects for their Practical Application

Published on: 20th February, 2024

Lead telluride (PbTe) is considered one of the most promising materials in thermoelectrics due to its unique thermoelectric properties. This semiconductor exhibits a high thermoelectric figure of merit (ZT) in certain temperature ranges, making it highly effective for converting heat energy into electricity. Additionally, PbTe is characterized by stability and low thermal conductivity, which further enhances the efficiency of thermoelectric devices. Another advantage of using PbTe is its relative affordability and high availability of raw materials. This makes it attractive for manufacturing mass thermoelectric devices such as thermoelectric modules for automobiles, industrial thermoelectric generators, heat recirculation, and others. The paper provides a review of works and an analysis of general approaches to semiconductor thermoelectric materials, including lead telluride.
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Durable Response to Pembrolizumab and Lenvatinib in a Patient with Chemotherapy-refractory Cholangiocarcinoma

Published on: 18th July, 2024

Cholangiocarcinoma (CCA), a rare malignancy originating from bile duct epithelial cells, often presents a challenging prognosis due to its rarity, delayed diagnosis, and early recurrence post-curative-intent treatments. Additional complexities include difficulties in achieving R0 resection during surgical intervention and the lack of effective second-line treatments following the failure of first-line regimens, particularly in unresectable advanced cases.In this case study, we demonstrate a durable response to a combination regimen of pembrolizumab and lenvatinib in a patient with distal CCA. Despite the regimen’s interim median Progression-Free Survival (PFS) of 6.1 months (95% CI, 2.1-6.4), our patient achieved a clinical and radiological PFS of approximately two years. The underlying mechanisms, potentially involving the upregulation of immune response pathways through undisclosed means or influenced by lenvatinib’s activation of T cells, might augment the sensitivity to PD-1 antibodies like pembrolizumab, contributing to the patient’s sustained response over two years.This case also highlights the significance of the patient’s initial good health condition, multidisciplinary care, and the potential impact of molecular subtyping on treatment selection in a patient with distal CCA who underwent numerous diagnostic procedures, intricate surgical interventions, and subsequent treatment regimens over seven years. Additionally, we underscore significant landmark trials and emerging combination therapies, including chemotherapies, immunotherapy, and targeted treatments in this report.
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Importance of BLUP method in plant breeding

Published on: 31st May, 2022

OCLC Number/Unique Identifier: 9526112251

Introduction: The most desirable linear neutral prediction (BLUP) is a standard method for estimating the random effects of a hybrid model. This approach was originally developed in animal breeding to estimate breeding values and is now widely used in many fields of research. The main practical advantages of using REML/BLUP are: It allows the comparison of individuals or species over time (generation, year) and space (location, block). Possibility of simultaneous correction of environmental effects, estimation of variance components, and prediction of genetic values.The best BLUP prediction method, which estimates the averages with high accuracy, especially in mixed models, is also used to evaluate multi-environment experimental data (MET).Blup is one method is statistical. Pedigree-based blup method.Materials and methods: The BLUP method achieves this goal by combining phenotypic data and information on pedigree relationships through an index, known as family index selection. This index, which is estimated based on the coefficient of intra-class correlation, exploits the relationships of individuals within a family compared to other families in the population.Results: The results: show that BLUP has good prediction accuracy compared to other methods. Pedigree-based BLUP method can increase selection yield in production-related traits in P. zonale or shelf life of D. caryophyllus L.
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