New Insights Into the Role of Seed Oil Body Proteins in Metabolism and Plant Development

Since the first description of phloem sap composition nearly 60 years ago, it is generally assumed that phloem sap does not contain nitrate and that there is little or no backflow of nitrate from shoots to roots. While it is true that nitrate can occasionally be absent from phloem sap, there is now substantial evidence that phloem can carry nitrate and furthermore, transporters involved in nitrate redistribution to shoot sink organs and roots have been found. This raises the question of why nitrate may or may not be present in phloem sap, why its concentration is generally kept low, and whether plant shoot-root nutrient cycling also involves nitrate. We propose here that phloem sap nitrate is not only an essential component of plant nutritional signaling but also contributes to physical properties of phloem sap and as such, its concentration is controlled to ensure proper coordination of plant development and nutrient transport.

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The Role of Pometone (Pomegranate seed oil) in Ameliorating the Deleterious Effect of Methionine Overload on Some Histological Aspects of heart and aorta in Female Rabbits (Part-II)

The Iraqi Journal of Veterinary Medicine ◽

10.30539/iraqijvm.v38i1.257 ◽

2014 ◽

Vol 38 (1) ◽

pp. 62-70

Author(s):

Baraa Najim Al-Okaily

Keyword(s):

Cardiac Muscle ◽

Muscle Fiber ◽

Seed Oil ◽

Mononuclear Cells ◽

Corn Oil ◽

Control Group ◽

Aortic Tissue ◽

Pomegranate Seed Oil ◽

Pomegranate Seed

This experiment was aimed to investigate the role of pomegranate seed oil (PSO) in ameliorating the deleterious effects of methionine overload on some histopathological structure of heart and aorta in adult female rabbits. Thirty-Two female rabbits divided into four groups eight animals each, and treated for 42 days daily as follows: the first groups were drenched drinking corn oil, serving as control (group C), second group (group T1) were intubated orally with methionine 100mg/kg. B.W, while the third group (groupT2) were intubated orally with methionine 100mg/kg. B.W and pomegranate seed oil (PSO) 30 mg /Kg. B.W, and the animals in group T3 were intubated orally with pomegranate seed oil 30 mg /Kg. B.W. At the end of the experiment rabbits were sacrificed. Serial sections from the heart and aorta were prepared and examined microscopically. Histological examination of heart and aorta of methionine overload treated group (T1) showed edema ,RBCs and few neutrophils infiltration ,with vacuolar degeneration of cardiac muscle cells , fragment of muscle fiber, congested blood vessels between muscle fibers. An increase in thickness of intima, erosion and mononuclear cells infiltration in sub intima of aorta were also observed. Histological sections of heart and aorta in T2 and T3 groups showed the absence of histopathological lesions in aortic tissue with moderate edema between muscle fiber of T2 group as comparing to group T1. In conclusion, the results confirm the cardioprotective role of pomegranate seed oil by ameliorating the effect of methionine overload on cardiac muscle and aorta.

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Programmed Cell Death in Plants: Insights Into developmental and Stress-Induced Cell Death

Current Protein and Peptide Science ◽

10.2174/1389203722666211109102209 ◽

2021 ◽

Vol 22 ◽

Author(s):

Heba T. Ebeed ◽

Ahmed A. El-helely

Keyword(s):

Cell Death ◽

Programmed Cell Death ◽

Plant Development ◽

Molecular Basis ◽

Stress Conditions ◽

Similar Form ◽

Cellular Homeostasis ◽

Endogenous Factors ◽

Selective Elimination

: Programmed cell death (PCD) is a fundamental genetically controlled process in most organisms. PCD is responsible for the selective elimination of damaged or unwanted cells and organs to maintain cellular homeostasis during the organ’s development under normal conditions as well as during defense or adaptation to stressful conditions. PCD pathways have been extensively studied in animals. In plants, studies focusing on understanding the pathways of PCD have advanced significantly. However, the knowledge about the molecular basis of PCD is still very limited. Some PCD pathways that have been discovered in animals are not present in plants or found with a similar form. PCD in plants is developmentally controlled (by endogenous factors) to function in organ development and differentiations as well as environmentally induced (by exogenous stimuli) to help the plant in surviving under stress conditions. Here, we present a review of the role of PCD in plant development and explore different examples of stress-induced PCD as well as highlight the main differences between the plant and animal PCD.

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Protective role of black seed oil in doxorubicin-induced cardiac toxicity in children with acute lymphoblastic leukemia

Journal of Oncology Pharmacy Practice ◽

10.1177/1078155219897294 ◽

2020 ◽

Vol 26 (6) ◽

pp. 1397-1406 ◽

Cited By ~ 1

Author(s):

Adel A Hagag ◽

Ibrahim M Badraia ◽

Walid A El-Shehaby ◽

Maaly M Mabrouk

Keyword(s):

Acute Lymphoblastic Leukemia ◽

Dose Group ◽

Seed Oil ◽

Lymphoblastic Leukemia ◽

Protective Role ◽

Black Seed ◽

Group I ◽

Black Seed Oil ◽

Group Ii

Background Leukemia is the most common pediatric malignancy. It affects bone marrow cells especially lymphoid cell precursor. Leukemia is treated mainly by chemotherapy. Doxorubicin is a well-established chemotherapeutic agent included in treatment protocols of acute lymphoblastic leukemia. Its efficacy is often limited by its cardiotoxic side effects. Many studies are directed to overcome this problem. Black seed oil was found to have a potent cardioprotective effect. Aim of the study: To assess the protective role of black seed oil against doxorubicin-induced cardiotoxicity in children with acute lymphoblastic leukemia. Subjects and methods This study was carried out on 40 children with acute lymphoblastic leukemia including 20 patients under doxorubicin therapy and black seed oil 80 mg/kg/dose divided into 3 doses starting at the same moment of beginning of doxorubicin infusion therapy and continued for 1 week after each doxorubicin dose [group I] and 20 patients under doxorubicin and placebo for 1 week after each doxorubicin dose [group II]. They underwent conventional echo-Doppler measures of left ventricular systolic and diastolic functions and pulsed wave tissue Doppler of lateral mitral annulus. Results No significant differences were found in parameters of electrocardiograph including S-T segment and Q-T interval either before or after doxorubicin therapy. No significant differences in echocardiographic parameters were found between group I and group II before therapy. Non-significant changes in parameters of diastolic function [E/A ratio or e/a ratio] were found after doxorubicin therapy in group I and II, but there were significant reduction in parameters of systolic function [EF, FS and s wave] after doxorubicin therapy more in group II than group I. Conclusion and recommendation: From this study, we concluded that: Black seed oil improves some cardiac side effects of doxorubicin as shown by better systolic functions in children with acute lymphoblastic leukemia who were treated with Doxorubicin and black seed (group I) than in children with acute lymphoblastic leukemia who were treated with doxorubicin alone with no black seeds (group II), and therefore multi center studies is recommended to be done before we can recommend the use of black seed oil as an adjuvant therapy in patients with acute lymphoblastic leukemia under doxorubicin-based treatment protocol.

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