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Heterologous expression of recombinant nattokinase in Escherichia coli BL21(DE3) and media optimization for overproduction of nattokinase using RSM
In this study, we cloned the nattokinase gene from the Bacillus subtilis strain into the pET32a vector and expressed the protein in the E. coli BL21(DE3) strain. The active recombinant nattokinase was purified using Ni-NTA affinity chromatography and then evaluated for fibrinolytic and blood clot lysis activity. Physiological parameters for optimizing protein production at optimal pH, temperature, IPTG concentration, and incubation time were investigated. A statistical technique was used to optimize media components for nattokinase overproduction, and Central Composite Design-Response Surface Methodology-based optimization...
Source: Atherosclerosis - November 15, 2022 Category: Cardiology Authors: Akhilesh Modi Ishan Raval Pooja Doshi Madhvi Joshi Chaitanya Joshi Amrutlal K Patel Source Type: research

Therapeutic Use and Chronic Abuse of CNS Stimulants and Anabolic Drugs
Curr Issues Mol Biol. 2022 Oct 15;44(10):4902-4920. doi: 10.3390/cimb44100333.ABSTRACTThe available evidence suggests that affective disorders, such as depression and anxiety, increase risk for accelerated cognitive decline and late-life dementia in aging individuals. Behavioral neuropsychology studies also showed that cognitive decline is a central feature of aging impacting the quality of life. Motor deficits are common after traumatic brain injuries and stroke, affect subjective well-being, and are linked with reduced quality of life. Currently, restorative therapies that target the brain directly to restore cognitive a...
Source: Current Issues in Molecular Biology - October 26, 2022 Category: Molecular Biology Authors: Daniela Coli ță Cezar-Ivan Coli ță Dirk M Hermann Eugen Coli ță Thorsten R Doeppner Ion Udristoiu Aurel Popa-Wagner Source Type: research

Lipopolysaccharide-induced sepsis-like state compromises post-ischemic neurological recovery, brain tissue survival and remodeling via mechanisms involving microvascular thrombosis and brain T cell infiltration.
Abstract Sepsis predisposes for poor stroke outcome. This association suggests that sepsis disturbs post-ischemic tissue survival and brain remodeling. To elucidate this link, we herein exposed mice to 30 min intraluminal middle cerebral artery occlusion (MCAO) and induced a sepsis-like state at 72 hours post-ischemia by intraperitoneal delivery of Escherichia coli lipopolysaccharide (LPS; three doses of 0.1 or 1 mg/kg, separated by 6 hours), a major component of the bacterium's outer membrane. Neurological recovery, ischemic injury, brain remodeling and immune responses were evaluated over up to 56 days post-seps...
Source: Brain, Behavior, and Immunity - October 22, 2020 Category: Neurology Authors: Sardari M, Skuljec J, Yin D, Zec K, de Carvalho TS, Albers D, Wang C, Pul R, Popa-Wagner A, Doeppner TR, Kleinschnitz C, Dzyubenko E, Hermann DM Tags: Brain Behav Immun Source Type: research

Introduction to Purinergic Signaling.
Abstract Purinergic signaling was proposed in 1972, after it was demonstrated that adenosine 5'-triphosphate (ATP) was a transmitter in nonadrenergic, noncholinergic inhibitory nerves supplying the guinea-pig taenia coli. Later, ATP was identified as an excitatory cotransmitter in sympathetic and parasympathetic nerves, and it is now apparent that ATP acts as a cotransmitter in most, if not all, nerves in both the peripheral nervous system and central nervous system (CNS). ATP acts as a short-term signaling molecule in neurotransmission, neuromodulation, and neurosecretion. It also has potent, long-term (trophic) ...
Source: Mol Biol Cell - October 27, 2019 Category: Molecular Biology Authors: Burnstock G Tags: Methods Mol Biol Source Type: research

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