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  1. Article ; Online: Phytoconstituents of Sansevieria suffruticosa N.E.Br. Leaves and Its Hepatoprotective Effect via Activation of the NRF2/ARE Signaling Pathway in an Experimentally Induced Liver Fibrosis Rat Model.

    Abdel-Rahman, Rehab F / Fayed, Hany M / Ogaly, Hanan A / Hussein, Rehab A / Raslan, Mona A

    Chemistry & biodiversity

    2022  Volume 19, Issue 4, Page(s) e202100960

    Abstract: Sansevieria species possess antioxidant and hepatoprotective activities. However, the therapeutic potential of Sansevieria suffruticosa N.E.Br. in liver fibrosis was not evaluated yet. Twenty-seven phytoconstituents were tentatively identified in the ... ...

    Abstract Sansevieria species possess antioxidant and hepatoprotective activities. However, the therapeutic potential of Sansevieria suffruticosa N.E.Br. in liver fibrosis was not evaluated yet. Twenty-seven phytoconstituents were tentatively identified in the phytoconstituents profile of Sansevieria suffruticosa N.E.Br. leaves extract (SSLE) using high-performance liquid chromatography coupled with mass spectrometry (HPLC-ESI/MS-MS). Using column chromatography, hesperetin, 4-hydroxybenzoic acid, ginsenoside Rg2, and quinic acid were isolated from SSLE. The hepatoprotective effect of SSLE via the activation of the NRF2 signaling pathway was evaluated using a rat model of thioacetamide-induced liver fibrosis. Five groups of 6 male adult Wistar rats were used. All animals except the normal control were injected with 200 mg/kg of TAA intraperitoneally twice weekly for 6 weeks. SSLE-treated groups were orally administered 200 and 100 mg/kg/day of the extract, two weeks before the liver fibrosis induction and were continued concomitantly with TAA injection. A reference group received 100 mg/kg b.wt of silymarin orally. SSLE treated groups exhibited a marked reduction in serum alanine transaminase (ALT), aspartate transaminase (AST) and malondialdehyde (MDA) levels compared with the TAA group. The levels of reduced glutathione (GSH) content and hepatic mRNA levels of Nrf2 and HO-1 were significantly increased. Histological findings further confirmed the protective role of SSLE against TAA. In conclusion, the aforementioned results indicated that the hepatoprotective mechanism of SSLE was exerted via activating the Nrf2 pathway to counteract oxidative stress.
    MeSH term(s) Animals ; Antioxidants/analysis ; Female ; Liver ; Liver Cirrhosis/chemically induced ; Liver Cirrhosis/drug therapy ; Liver Cirrhosis/metabolism ; Male ; NF-E2-Related Factor 2/metabolism ; Oxidative Stress ; Plant Extracts/chemistry ; Plant Extracts/pharmacology ; Plant Extracts/therapeutic use ; Plant Leaves/chemistry ; Rats ; Rats, Wistar ; Sansevieria/metabolism ; Signal Transduction
    Chemical Substances Antioxidants ; NF-E2-Related Factor 2 ; Plant Extracts
    Language English
    Publishing date 2022-03-24
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2139001-0
    ISSN 1612-1880 ; 1612-1872
    ISSN (online) 1612-1880
    ISSN 1612-1872
    DOI 10.1002/cbdv.202100960
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Metabolomic study of the estrogenic and anti-osteoporotic potential of Erythrina bidwillii leaf.

    AbouZeid, Enaam M / Hussein, Rehab A / Salama, Abeer A / Youssef, Fadia S / El-Ahmady, Sherweit H / Ammar, Nagwa Mohamed / Afifi, Ahmed H

    Biomedical chromatography : BMC

    2023  Volume 38, Issue 3, Page(s) e5810

    Abstract: Erythrina bidwillii Lindl., Leguminosae, constitutes a valuable crop for horticulture and medicine; however, it is rarely investigated. Menopause is a crucial transitional period in women's health. Women worldwide consider the use of phytoestrogens as a ... ...

    Abstract Erythrina bidwillii Lindl., Leguminosae, constitutes a valuable crop for horticulture and medicine; however, it is rarely investigated. Menopause is a crucial transitional period in women's health. Women worldwide consider the use of phytoestrogens as a safe hormone replacement therapy to alleviate detrimental menopausal symptoms. Thus, the discovery of novel phytoestrogens is highly demanded. The present study aimed to investigate, for the first time, the metabolomic profile and the estrogenic potential of E. bidwillii Lindl. leaf. Ultra-performance liquid chromatography-electrospray ionization-tandem mass spectrometry and gas chromatography-mass spectrometry metabolite profiling revealed the prevalence of alkaloids, flavonoids, isoflavonoids and fatty acids. Additionally, five erythrinan alkaloids, cristanine A (1), 8-oxoerythraline (2), (+)-erythrinine (3), (+)-erythraline (4) and 8-oxoerythrinine (5), along with the isoflavonoid genistin (6), were isolated. Erythrina bidwillii leaf extract exhibited significant in vivo estrogenic, anti-osteoporotic, anti-hyperlipidemic, hepatoprotective, and nephroprotective activities, utilizing ovariectomized rat model. Moreover, ethyl acetate and hexane fractions possessed significant in vitro estrogeic potential on MCF-7 cell lines. An in silico study of the isolated metabolites revealed that (+)-erythrinine (3) and 8-oxoerythrinine (5) exhibited the highest affinity for ERα and ERβ, respectively, modeling them as potential estrogenic lead metabolites. Therefore, E. bidwillii leaf could be employed as promising hormone replacement therapy for postmenopausal women after thorough clinical trials.
    MeSH term(s) Female ; Humans ; Rats ; Animals ; Phytoestrogens/chemistry ; Erythrina/chemistry ; Alkaloids/chemistry ; Plant Extracts/pharmacology ; Plant Extracts/chemistry ; MCF-7 Cells
    Chemical Substances Phytoestrogens ; Alkaloids ; Plant Extracts
    Language English
    Publishing date 2023-12-25
    Publishing country England
    Document type Journal Article
    ZDB-ID 632848-9
    ISSN 1099-0801 ; 0269-3879
    ISSN (online) 1099-0801
    ISSN 0269-3879
    DOI 10.1002/bmc.5810
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Dunalialla salina microalgea and its isolated zeaxanthin mitigate age-related dementia in rats: Modulation of neurotransmission and amyloid-β protein.

    El-Baz, Farouk K / Abdel Jaleel, Gehad A / Hussein, Rehab A / Saleh, Dalia O

    Toxicology reports

    2021  Volume 8, Page(s) 1899–1908

    Abstract: Age-related deterioration of sensorimotor and cognitive abilities suggests that the brain undergoes regressive alterations with aging that compromise its function. Thus, the present study was designed to assess the efficacy ... ...

    Abstract Age-related deterioration of sensorimotor and cognitive abilities suggests that the brain undergoes regressive alterations with aging that compromise its function. Thus, the present study was designed to assess the efficacy of
    Language English
    Publishing date 2021-11-29
    Publishing country Ireland
    Document type Journal Article
    ZDB-ID 2805786-7
    ISSN 2214-7500 ; 2214-7500
    ISSN (online) 2214-7500
    ISSN 2214-7500
    DOI 10.1016/j.toxrep.2021.11.021
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: HPLC and GC-MS-based metabolic profiles and in vivo anticonvulsant, sedative, and antinociceptive potentials of truffles Tirmania nivea and Tirmania pinoyi hydromethanolic extracts in mice.

    Aboutabl, Mona E / Elkhateeb, Waill A / Masoud, Marwa A / Daba, Ghoson M / Afifi, Ahmed H / Hussein, Rehab A

    Biomedical chromatography : BMC

    2022  Volume 36, Issue 12, Page(s) e5481

    Abstract: GC-MS and HPLC analyses of the hydromethanolic extracts of the truffles Tirmania nivea (TN) and Tirmania pinoyi (TP) revealed the presence of 18 metabolites and 11 polyphenols, respectively. In vivo, TP extract protected against subcutaneous ... ...

    Abstract GC-MS and HPLC analyses of the hydromethanolic extracts of the truffles Tirmania nivea (TN) and Tirmania pinoyi (TP) revealed the presence of 18 metabolites and 11 polyphenols, respectively. In vivo, TP extract protected against subcutaneous pentylenetetrazole (scPTZ) and maximal electric shock (MES)-induced convulsions faster than TN extract. TP extract (100 and 300 mg/kg) showed 100% protection and longer duration than TN extract in the scPTZ test. Similarly, at 300 mg/kg, TP demonstrated a quicker start (75%) and longer duration of action (100%) than TN in MES test. In the scPTZ test, ED
    MeSH term(s) Mice ; Animals ; Anticonvulsants/pharmacology ; Anticonvulsants/therapeutic use ; Hypnotics and Sedatives/pharmacology ; Gas Chromatography-Mass Spectrometry ; Chromatography, High Pressure Liquid ; Analgesics/pharmacology ; Plant Extracts/pharmacology ; Metabolome
    Chemical Substances Anticonvulsants ; Hypnotics and Sedatives ; Analgesics ; Plant Extracts
    Language English
    Publishing date 2022-08-31
    Publishing country England
    Document type Journal Article
    ZDB-ID 632848-9
    ISSN 1099-0801 ; 0269-3879
    ISSN (online) 1099-0801
    ISSN 0269-3879
    DOI 10.1002/bmc.5481
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Dunaliella salina

    El-Baz, Farouk K / Salama, Abeer A A / Hussein, Rehab A

    Toxicology reports

    2019  Volume 7, Page(s) 36–45

    Abstract: Several hepatic pathological conditions are correlated with the stimulation of hepatic stellate cells. This induces a cascade of events producing accretion of extracellular matrix components triggering fibrosis. ...

    Abstract Several hepatic pathological conditions are correlated with the stimulation of hepatic stellate cells. This induces a cascade of events producing accretion of extracellular matrix components triggering fibrosis.
    Language English
    Publishing date 2019-11-10
    Publishing country Ireland
    Document type Journal Article
    ZDB-ID 2805786-7
    ISSN 2214-7500 ; 2214-7500
    ISSN (online) 2214-7500
    ISSN 2214-7500
    DOI 10.1016/j.toxrep.2019.10.017
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  6. Article: Dunaliella salina microalgae oppose thioacetamide-induced hepatic fibrosis in rats

    El-Baz, Farouk K / Salama, Abeer A.A / Hussein, Rehab A

    Toxicology reports. 2020, v. 7

    2020  

    Abstract: Several hepatic pathological conditions are correlated with the stimulation of hepatic stellate cells. This induces a cascade of events producing accretion of extracellular matrix components triggering fibrosis. Dunaliella salina, rich in carotenoids, ... ...

    Abstract Several hepatic pathological conditions are correlated with the stimulation of hepatic stellate cells. This induces a cascade of events producing accretion of extracellular matrix components triggering fibrosis. Dunaliella salina, rich in carotenoids, was investigated for its potential antagonizing activity; functionally and structurally against thioacetamide (TAA) - induced hepatic fibrosis in rats. Adult male albino Wistar rats were treated with three dose levels of D. salina powder or extract (daily, p.o.); for 6 weeks, concomitantly with TAA injection. Serum levels of aspartate transaminase (AST), alanine transaminase (ALT), alkaline phosphatase (ALP), bilirubin and albumin were determined. Reduced glutathione (GSH), malondialdehyde (MDA), smooth muscle actin alpha (α-SMA) and collagen I hepatic contents were also estimated. Treatment with D. salina powder or extract caused a significant decline in serum levels of AST, ALT, ALP, bilirubin, MDA and hepatic contents of α-SMA and collagen I. Additionally, serum albumin and GSH hepatic content were highly elevated. Liver histopathological examination also indicated that D. salina reduced fibrosis, centrilobular necrosis, and inflammatory cell infiltration evoked by TAA. The results implied that D. salina exerts protective action against TAA-induced hepatic fibrosis in rats. The phytochemical investigation revealed high total carotenoid content prominently β-carotene (15.2 % of the algal extract) as well as unsaturated fatty acids as alpha-linolenic acid which accounts for the hepatoprotective activity.
    Keywords Dunaliella salina ; actin ; adults ; alanine transaminase ; albino ; alkaline phosphatase ; alpha-linolenic acid ; aspartate transaminase ; bilirubin ; blood serum ; collagen ; extracellular matrix ; fibrosis ; glutathione ; hepatoprotective effect ; histopathology ; liver ; liver cirrhosis ; males ; malondialdehyde ; microalgae ; necrosis ; phytochemicals ; serum albumin ; smooth muscle ; toxicology
    Language English
    Size p. 36-45.
    Publishing place Elsevier B.V.
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2805786-7
    ISSN 2214-7500
    ISSN 2214-7500
    DOI 10.1016/j.toxrep.2019.10.017
    Database NAL-Catalogue (AGRICOLA)

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  7. Article: Dunalialla salina microalgae and its isolated zeaxanthin mitigate age-related dementia in rats: Modulation of neurotransmission and amyloid-β protein

    El-Baz, Farouk K. / Abdel Jaleel, Gehad A. / Hussein, Rehab A. / Saleh, Dalia O.

    Toxicology reports. 2021, v. 8

    2021  

    Abstract: Age-related deterioration of sensorimotor and cognitive abilities suggests that the brain undergoes regressive alterations with aging that compromise its function. Thus, the present study was designed to assess the efficacy of Dunaliella salina in ... ...

    Abstract Age-related deterioration of sensorimotor and cognitive abilities suggests that the brain undergoes regressive alterations with aging that compromise its function. Thus, the present study was designed to assess the efficacy of Dunaliella salina in counteracting D-galactose (D-gal)-induced dementia brain aging and its modulatory role in attenuating amyloid β (Aβ) protein and neurotransmitters. Aging associated dementia was generated by injection of D-gal (200 mg/kg; i.p) of rats for 8 weeks. D. salina biomass (250 mg/kg), polar (30 mg/kg), its carotenoid (30 mg/kg) fractions as well as the isolated zeaxanthin (250 μg/kg) were given orally simultaneously with D-gal for additional two weeks. Twenty-four hours after the last treatment dose; behavioral, biochemical and histopathological assessment were performed. Results showed that oral treatment of motor deficit rats with D. salina biomass and its isolated polar and carotenoid fractions showed amelioration in the motor coordination assessed by the rotarod test and in the memory and learning capabilities evaluated by Morris water maze test. D. salina also showed a reduction in brain levels of inflammatory indicators viz. interlekin-1β and inducible nitric oxide synthetase as well as brain contents of Aβ protein and myelin base protein. Likewise, oral treatment with D. salina biomass and its isolated polar and carotenoid fractions exhibited an increase in the rats’ brain neurotransmitters and their metabolites. Furthermore, histopathological investigations have confirmed all of these results. Our findings suggest that D. salina overcomes brain aging and thereby repairs age-related dementia, both for its modulating function in attenuating the Aβ protein and neurotransmitters.
    Keywords Dunaliella salina ; amyloid ; biomass ; brain ; cognition ; dementia ; galactose ; histopathology ; inducible nitric oxide synthase ; memory ; metabolites ; microalgae ; myelin sheath ; neurotransmitters ; oral administration ; synaptic transmission ; toxicology ; zeaxanthin
    Language English
    Size p. 1899-1908.
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 2805786-7
    ISSN 2214-7500
    ISSN 2214-7500
    DOI 10.1016/j.toxrep.2021.11.021
    Database NAL-Catalogue (AGRICOLA)

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  8. Article ; Online: Attenuation of Age-Related Hepatic Steatosis by

    El-Baz, Farouk K / Saleh, Dalia O / Abdel Jaleel, Gehad A / Hussein, Rehab A

    Advances in pharmacological and pharmaceutical sciences

    2020  Volume 2020, Page(s) 3797218

    Abstract: Background: Hepatic steatosis is the most common type of chronic liver disease and is considered an established risk factor of major chronic diseases.: Purpose: The present study aimed to investigate the effect of : Methods: Blood samples were ... ...

    Abstract Background: Hepatic steatosis is the most common type of chronic liver disease and is considered an established risk factor of major chronic diseases.
    Purpose: The present study aimed to investigate the effect of
    Methods: Blood samples were collected 24 hours after the last dose of
    Results: Oral treatment of D-galactose-injected rats with BDS, PDS, CDS, or ZH ameliorated the serum hepatic function parameters as well as serum levels of adiponectin, apolipoprotein B 100, and insulin. Furthermore,
    Conclusion: D. salina
    Language English
    Publishing date 2020-05-01
    Publishing country England
    Document type Journal Article
    ZDB-ID 3026687-7
    ISSN 2633-4690 ; 2633-4682 ; 2633-4690
    ISSN (online) 2633-4690 ; 2633-4682
    ISSN 2633-4690
    DOI 10.1155/2020/3797218
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  9. Article: Medicinal impact of microalgae collected from high rate algal ponds; phytochemical and pharmacological studies of microalgae and its application in medicated bandages

    Hussein, Rehab A / Ali, Gamila H / El Naggar, Mehrez E / Salama, Abeer A.A

    Biocatalysis and agricultural biotechnology. 2019 July, v. 20

    2019  

    Abstract: In the course of maximizing the utilization of natural resources, microalgal communities growing in high rate algal ponds are being investigated for possible pharmacological and medicinal values. An algal community predominated by Microcystis aeruginosa ... ...

    Abstract In the course of maximizing the utilization of natural resources, microalgal communities growing in high rate algal ponds are being investigated for possible pharmacological and medicinal values. An algal community predominated by Microcystis aeruginosa was phytochemically studied using Liquid chromatography with Photodiode array detector coupled with electron spary ionization mass spectroscopy (LC-DAD/ESI-MS). A pharmacological screening including antioxidant, anti-inflammatory, anti-diabetic and cytotoxic actions was conducted. The application of Microcystis aeruginosa predominant algal extract in formulating medicated bandages to aid healing of diabetic wounds was further evaluated. The phytochemical investigation of the algal extract led to the separation and identification of hydroxypheophytin-a, astaxanthin and phytoene in the algal extract which showed marked antioxidant and anti-inflammatory activities at 500 mg/kg dose level. At a dose of 200 and 400 mg/kg, it significantly diminished glucose levels in diabetic rats' sera in a dose-dependent manner. Marked decline in serum nitric oxide and catalase values was detected along with a significant increase in serum insulin, glucose transporter 2 and cluster of differentiation 4 levels. The obtained results indicated that the use of the algal based medicated bandages on wounds induced in diabetic rats showed progressive healing as compared to untreated rats. A considerable decrease in serum tumor necrosis factor-α accompanied by the increase in serum collagen-I was observed. The histopathological inspection of rats’ skin ascertained the improvement in skin condition.
    Keywords animal disease models ; anti-inflammatory activity ; antioxidants ; astaxanthin ; bandages ; blood serum ; catalase ; cytotoxicity ; diabetes ; dose response ; electrospray ionization mass spectrometry ; glucose ; glucose transporters ; histopathology ; insulin ; ionization ; liquid chromatography ; microalgae ; Microcystis aeruginosa ; neoplasms ; nitric oxide ; phytochemicals ; ponds ; rats ; screening ; tumor necrosis factor-alpha
    Language English
    Dates of publication 2019-07
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 2642052-1
    ISSN 1878-8181
    ISSN 1878-8181
    DOI 10.1016/j.bcab.2019.101237
    Database NAL-Catalogue (AGRICOLA)

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  10. Article ; Online: Heamatococcus pluvialis ameliorates bone loss in experimentally-induced osteoporosis in rats via the regulation of OPG/RANKL pathway.

    El-Baz, Farouk K / Saleh, Dalia O / Abdel Jaleel, Gehad A / Hussein, Rehab A / Hassan, Azza

    Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie

    2019  Volume 116, Page(s) 109017

    Abstract: Backgrounds: Osteoporosis prevailing in elderly involves a marked increase in bone resorption showing an initial fall in bone mineral density leading to a significant reduction in bone formation.: Aim: The present study aimed to investigate the ... ...

    Abstract Backgrounds: Osteoporosis prevailing in elderly involves a marked increase in bone resorption showing an initial fall in bone mineral density leading to a significant reduction in bone formation.
    Aim: The present study aimed to investigate the effect of Heamatococcus pluvialis microalgae on osteoporosis in D-galactose-treated rats. The underlying mechanism was tracked targeting the osteoprotegerin (OPG)/ nuclear factor-κβ ligand (RANKL) pathway using micro-computed tomography scanning.
    Methods: Osteoporosis was induced in rats by intraperitoneal injection of D-galactose (200 mg/kg/day) for eight consecutive weeks. Osteoporotic rats were orally treated with H. pluvialis biomass (BHP; 450 mg/kg), its polar (PHP; 30 mg/kg) and carotenoid (CHP; 30 mg/kg) fractions for the last 2 weeks of D-Gal injection. Twenty four hours after the last dose of the treatments, tibia bones of the rats were scanned using micro-computed tomography scanning for bone mineral density (BMD), bone volume fraction (BV/TV), trabecular thickness/separation/number (Tb.Th, Tb.Sp, Tb.N) evaluation, blood samples were withdrawn and sera were used for biochemical assessment. Moreover, femur bones were examined histopathologically using several stains.
    Results: Induction of osteoporosis was associated with a marked reduction in BMD, BV/TV, Tb.Th, Tb.Sp, Tb.N and in serum levels of phosphorus and catalase. On the other hand, a significant elevation in serum levels of calcium, bone alkaline phosphatase (BALP) and interleukin-6 was observed. Moreover, up-regulation of OPG was detected in osteoporotic rats. Oral treatment with BHP, and PHP incremented tibia BMD and serum phosphorus level along with the decrease in serum levels of calcium, BALP, interleukin-6, OPG and RANKL. However, treatment with CHP almost restored all the fore mentioned parameters to normal values. Furthermore, the histopathological evaluation emphasized the biochemical outcomes.
    Conclusion: H. pluvialis fractions rich in astaxanthin ameliorated bone loss in experimentally-induced osteoporosis in rats probably through the down-regulation of serum OPG in concurrence with up-regulation of serum RANKL.
    MeSH term(s) Alkaline Phosphatase/blood ; Animals ; Bone Resorption/blood ; Bone Resorption/diagnostic imaging ; Bone Resorption/etiology ; Bone Resorption/pathology ; Calcium/blood ; Catalase/blood ; Glucose ; Interleukin-6/blood ; Male ; Microalgae/physiology ; Models, Biological ; Molecular Docking Simulation ; NF-kappa B/blood ; Osteoporosis/blood ; Osteoporosis/complications ; Osteoporosis/diagnostic imaging ; Osteoporosis/pathology ; Osteoprotegerin/blood ; Osteoprotegerin/metabolism ; RANK Ligand/metabolism ; Rats ; Signal Transduction ; Tibia/diagnostic imaging ; Tibia/pathology ; X-Ray Microtomography
    Chemical Substances Interleukin-6 ; NF-kappa B ; Osteoprotegerin ; RANK Ligand ; Catalase (EC 1.11.1.6) ; Alkaline Phosphatase (EC 3.1.3.1) ; Glucose (IY9XDZ35W2) ; Calcium (SY7Q814VUP)
    Language English
    Publishing date 2019-05-31
    Publishing country France
    Document type Journal Article
    ZDB-ID 392415-4
    ISSN 1950-6007 ; 0753-3322 ; 0300-0893
    ISSN (online) 1950-6007
    ISSN 0753-3322 ; 0300-0893
    DOI 10.1016/j.biopha.2019.109017
    Database MEDical Literature Analysis and Retrieval System OnLINE

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