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15:01 EDT 17th July 2018 | BioPortfolio

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Showing "Garlic Research Labs" PubMed Articles 1–25 of 24,000+

Randomly auditing research labs could be an affordable way to improve research quality: A simulation study.

The "publish or perish" incentive drives many researchers to increase the quantity of their papers at the cost of quality. Lowering quality increases the number of false positive errors which is a key cause of the reproducibility crisis. We adapted a previously published simulation of the research world where labs that produce many papers are more likely to have "child" labs that inherit their characteristics. This selection creates a competitive spiral that favours quantity over quality. To try to halt the...

Garlic extract favorably modifies markers of endothelial function in obese patients -randomized double blind placebo-controlled nutritional intervention.

Garlic exerts a range of effects relevant to human health. However, its influence on the endothelium in obese individuals remains unknown. We aimed to determine the effects of garlic extract (GE) on arterial stiffness and markers of endothelial function.

Effect of garlic powder on hippocampal long-term potentiation in rats fed high fat diet: an in vivo study.

The objective of this study was to determine the relation between the chronic consumption of garlic powder in combination with high-fat diet (HFD) on long term potentiation (LTP) in the dentate gyrus (DG) of rat hippocampus. Male rats were divided to 4 groups, control with the standard diet, control with a standard diet plus garlic, high-fat diet (HFD) group and high-fat diet with garlic. Following 6 months of controlled dietary in each experimental group, the rats were anesthetized with i.p. injection of ...

Single and joint antibacterial activity of aqueous garlic extract and Manuka honey on extended-spectrum beta-lactamase-producing Escherichia coli.

Multidrug resistance and recent technological advances have renewed interest in natural product drug discovery from ancient remedies such as Allium sativum (garlic) and honey. This study assessed antibacterial activity of aqueous garlic extract (AGE) and Manuka honey on extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli.

A biophysical insight into the formation of aggregates upon trifluoroethanol induced structural and conformational changes in garlic cystatin.

Intrinsic and extrinsic factors are responsible for the transition of soluble proteins into aggregated form. Trifluoroethanol is among such potent extrinsic factor which facilitates the formation of aggregated structure. It disrupts the interactive forces and destabilizes the native structure of the protein. The present study investigates the effect of trifluoroethanol (TFE) on garlic cystatin. Garlic cystatin was incubated with increasing concentration of TFE (0-90% v/v) for 4 h. Incubation of GPC with T...

Garlic (Allium sativum L.) fed to dairy cows does not modify the cheese-making properties of milk but affects the color, texture, and flavor of ripened cheese.

Garlic and garlic components have recently been proposed as ruminal activity modulators to reduce the enteric methane emissions of ruminants, but little is known of their influence on milk coagulation properties, nutrient recovery, cheese yield, and sensorial and rheological characteristics of milk and cheese. The present study assessed the effects of garlic and diallyl sulfide supplements on dry matter intake (DMI), productive performance, milk coagulation properties, cheese yield, milk and cheese sensory ...

Nutritional Value, Chemical Characterization and Bulb Morphology of Greek Garlic Landraces.

Garlic (Allium sativum L.) is an important vegetable crop throughout the world. In Greece there are many areas which have specialized in garlic cultivation through the last decades, considered the main production areas. However, despite the significance of garlic as a food product and the high annual income of this crop, there is a decreasing trend in total cultivated area in Greece, and the local landraces are gradually neglected in favor of new imported genotypes. In the present study, garlic genotypes (l...

Life Cycle Assessment of Traction Lead-acid Batteries for Electric Bikes in China.

This research undertook a life cycle assessment (LCA) for lead-acid batteries (LABs) used in electric bikes, the fastest growing LABs in China. A cradle-to-grave LCA model was established to identify the key materials or processes that contribute most to environmental impacts within the life cycle of LABs, including material production, battery manufacture, transportation, use, and end-of-life. A large amount of primary data obtained from enterprisers and a Chinese LCA database were used in this research to...

Inhibitory Effect of Garlic, Purple Onion, and White Onion on Key Enzymes Linked with Type 2 Diabetes and Hypertension.

Spices are used in soup preparation in many homes and serve as ingredients in the preparation of several traditional delicacies endowed with natural antioxidants such as polyphenols. The aim of this study is to evaluate the effect of aqueous extract of garlic, white onion, and purple onion on angiotensin-converting enzyme, α-amylase, and α-glucosidase activity in vitro and determine their antioxidant properties via various antioxidant assays such as OH, Fechelation, and 2, 2'-azino-bis 3-ethylbenzothiazol...

Effects of garlic polysaccharide on alcoholic liver fibrosis and intestinal microflora in mice.

Alcoholic liver fibrosis (ALF) is treatable and reversible consequence of liver disease. Intestinal microflora plays an important role in the progression of liver disease. Garlic (Allium sativum L. [Amaryllidaceae]) has been consumed as a traditional medicine to treat liver injury.

Anti-Cancer Potential of Homemade Fresh Garlic Extract Is Related to Increased Endoplasmic Reticulum Stress.

The use of garlic and garlic-based extracts has been linked to decreased incidence of cancer in epidemiological studies. Here we examine the molecular and cellular activities of a simple homemade ethanol-based garlic extract (GE). We show that GE inhibits growth of several different cancer cells in vitro, as well as cancer growth in vivo in a syngeneic orthotopic breast cancer model. Multiple myeloma cells were found to be especially sensitive to GE. The GE was fractionated using solid-phase extractions, an...

Isolation and identification of three γ-glutamyl tripeptides and their putative production mechanism in aged garlic extract.

We analyzed aged garlic extract (AGE) to understand its complex sulfur chemistry using post-column high-performance liquid chromatography with an iodoplatinate reagent and liquid chromatography high resolution mass spectrometry (LC-MS). We observed unidentified peaks of putative sulfur compounds. Three compounds were isolated and identified as γ-glutamyl-γ-glutamyl-S-methylcysteine, γ-glutamyl-γ- glutamyl-S-allylcysteine (GGSAC) and γ-glutamyl-γ-glutamyl-S-1-propenyl- cysteine (GGS1PC) by nuclear magn...

Garlic (Allium sativum) increases SIRT1 and SIRT2 gene expressions in the kidney and liver tissues of STZ- and STZ+niacinamide-induced diabetic rats.

Diabetic nephropathy and liver damage are important complications of diabetes mellitus (DM). Various factors, such as sirtuins (silent information regulators or SIRTs) are associated with these complications. Sirtuins are a family of NAD+-dependent proteins, and seven types of these can be found in mammalians. In this study, we evaluated the effects of aqueous garlic extract (G) on the expressions of SIRT1 and SIRT2 genes in the kidney and liver tissues of rats with types 1 and 2 diabetes.


Measurements of the dose equivalent at different distances from the isocenter of the proton therapy center at iThemba LABS were previously performed with a tissue-equivalent proportional counter (TEPC). These measurements showed that the scattered radiation levels were one or two orders of magnitude higher in comparison to other passive scattering delivery systems. In order to reduce these radiation levels, additional shielding was installed shortly after the measurements were done. Therefore, the aim of th...

Protective effect of methylallyl sulfone in the development of cigarette smoke extract-induced apoptosis in rats and HFL-1 cells.

Although the organosulfur compounds from garlic have shown diverse pharmacological activities, the prototype drug was almost undetectable in vivo. As known, methylallyl sulfone (AMSO2) is the main metabolite of some active organosulfur compounds derived from garlic. The purpose of this article was to study the protective effect of AMSO2 on cigarette smoke extract (CSE) induced cell apoptosis in lungs in vivo and in vitro. The male rats were injected intraperitoneally with 900 μL of 100% CSE 3 times for t...

The labs that forge distant planets here on Earth.

Cardiac Cath Labs: Their Origins and Their Future.

Sexual Harassment: Health Care, It Is #YouToo.

There's no question that sexual harassment-and worse-is common at the country's hospitals, clinics, research labs, and doctor's offices. Health care's gender imbalances create situations that are ripe for abuse: Women make up the majority of the workforce in health care but men still dominate positions of authority.

Garlic (Allium sativum) exhibits a cardioprotective effect in experimental chronic renal failure rat model by reducing oxidative stress and controlling cardiac Na/K-ATPase activity and Ca levels.

Gentamicin (GNT)-induced nephrotoxicity culminates into renal failure with a possible cardiovascular impact. Garlic extract (GE) is a cardiovascular protectant with limited mechanistic data. Therefore, we assessed the disturbance in specific cardiac parameters and the potential protective effect of GE supplementation against them in a rat model of GNT-induced chronic renal failure (CRF). Adult male rats (n = 24) were randomly assigned into four groups (n = 6 each): normal controls (CON), garlic extr...

Is aldehyde dehydrogenase inhibited by sulfur compounds? In vitro and in vivo studies.

Aldehyde dehydrogenase (ALDH) catalyzes the critical step of ethanol metabolism, i.e. transformation of toxic acetaldehyde to acetic acid. It is a redox sensitive protein with the key Cys in its active site. Recently, it has been documented that activity of some proteins can be modified by sulfur-containing molecules called reactive sulfur species leading to the formation of hydro- persulfides. The aim of the present study was to examine whether ALDH activity can be modified in this way. Studies were perfor...

An Application-Directed, Versatile DNA FISH Platform for Research and Diagnostics.

DNA fluorescence in situ hybridization (DNA FISH) has emerged as a powerful microscopy technique that allows a unique view into the composition and arrangement of the genetic material in its natural context-be it the cell nucleus in interphase, or chromosomes in metaphase spreads. The core principle of DNA FISH is the ability of fluorescently labeled DNA probes (either double- or single-stranded DNA fragments) to bind to their complementary sequences in situ in cells or tissues, revealing the location of th...

Lactic Acid Bacteria may Impact Intestinal Barrier Function by Modulating Goblet Cells.

Lactic acid bacteria (LAB) are recognized to promote gastrointestinal health by mechanisms that are not fully understood. LABs might modulate the mucus and thereby enhance intestinal barrier function. Herein, we investigated effects of different LAB strains and species on goblet cell genes involved in mucus synthesis.

Combination of garlic essential oil, allyl isothiocyanate, and nisin Z as bio-preservatives in fresh sausage.

The effects of natural antimicrobial compounds (garlic essential oil [GO], allyl isothiocyanate [AITC], and nisin Z [NI]) on microbiological, physicochemical and sensory characteristics of fresh sausage were assessed. The minimum inhibitory concentrations (MICs) and the minimum bactericidal concentrations (MBCs) towards Escherichia coli O157:H7 and Lactobacillus plantarum were determined in vitro. Sausages inoculated with E. coli O157:H7, were treated with different combinations of antimicrobials and assess...

A cyber-linked undergraduate research experience in computational biomolecular structure prediction and design.

Computational biology is an interdisciplinary field, and many computational biology research projects involve distributed teams of scientists. To accomplish their work, these teams must overcome both disciplinary and geographic barriers. Introducing new training paradigms is one way to facilitate research progress in computational biology. Here, we describe a new undergraduate program in biomolecular structure prediction and design in which students conduct research at labs located at geographically-distrib...

An insider's view on how Ki-67, the bright beacon of cell proliferation, became very popular.A tribute to Johannes Gerdes (1950 - 2016).

In July 2016 Johannes Gerdes passed away, 25 years after the Journal of Pathology published a groundbreaking paper on Ki-67. The manuscript has been quoted nearly 1400 times since then.Thomas Scholzen, Christiane Gerlach and Giorgio Cattoretti, former coworkers, collaborators and friends of Hannes present a reconstruction of the scientific ambience of the field in the world and in their labs, anecdoctes of the discovery and a very brief summary of published and unpublished research on Ki-67 as a tribute to ...

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