1.Flavonoid chemical composition and antidiabetic potential of Brachychiton acerifolius leaves extract
Farag Ali Mohamed ; El-Akad Hassan Radwa ; El-Rafie Mohamed Hanaa
Asian Pacific Journal of Tropical Biomedicine 2017;7(5):389-396
Objective:To evaluate Brachychiton acerifolius leaf extracts as antidiabetic potential agent and to identify the main active constituents using bioactivity guided fractionation.Methods:In vitro antioxidant activity was evaluated for B.acerifolius different extracts using DPPH assay and vitamin C as control.Antidiabetic activity was then determined using STZ-induced rats treated daily with ethyl acetate and 70% ethanol leaf extracts for 4 weeks at a dose of 200 g/kg body weight against gliclazide reference drug.Blood glucose,α-amylase,lipid profile,liver function enzymes and oxidative stress markers were assessed along with histopathological study for liver and pancreatic tissues.Isolation and structural elucidation of active compounds were made using Diaion and Sephadex followed by spectral analyses.Results:The results indicated that ethyl acetate and ethanol leaf extracts exhibited the strongest antioxidant activity compared to that of vitamin C (IC50 0.05,0.03 and 12 mg/mL,respectively).Both extracts showed potent anti-hyperglycemic activity evidenced by a significant decrease in serum glucose levels by 82.5% and 80.9% and α-amylase by 45.2% and 53.6%,as compared with gliclazide 68% and 59.4%,respectively.Fractionation of ethanol extract resulted in the isolation of 9 flavonoids including apigenin-7-O-α-rhamnosyl(1 → 2)-β-D-glucuronidc,apigenin-7-O-β-D-glucuronide,apigcnin-7-O-β-D-glucoside and luteolin-7-O-β-D-glucuronide.Conclusions:This study highlights the potential use of B.acerifolius leaf extract enriched in flavones for the treatment of diabetes that would warrant further clinical trials investigation.
2.Epidemiological, and molecular Infectious Disease investigation of Canine parvovirus-2infection in Egypt
Eman Farag AMMAR ; Yamen Mohammed HEGAZY ; Magdy AL-GAABARY ; Samah M. MOSAD ; Mohamed SALEM ; Mohamed MARZOK ; Fadhel HOUSAWI ; Mohamed AL-ALI ; Abdulrahman ALHAIDER ; Amin TAHOUN
Journal of Veterinary Science 2024;25(4):e56-
Objective:
This study examined the risk factors and survival outcomes of dogs infected with CPV-2. Molecular characterization of CPV-2 genotypes circulating in Egypt was performed to determine the evolution of CPV-2 nationally and globally.
Methods:
An age-matched case-control study was conducted on 47 control and 47 CPVinfected dogs. Conditional logistic regression analysis examined the association between the potential risk factors and CPE in dogs. Survival analysis was performed to determine the survival pattern of the infected dogs. Thirteen fecal samples from infected dogs were collected to confirm the CPV genotype by CPV-2 VP2 gene sequencing, assembly of nucleotide sequences, and phylogenic analysis.
Results:
Unvaccinated and roamer dogs had eight and 2.3 times higher risks of CPV infection than vaccinated dogs and non-roamer dogs, respectively. The risk of death from CPE was high among dogs without routine visits to veterinary clinics and among non-roamer dogs.Molecular characterization of CPV-2 confirmed its genotype identity and relationship with the CPV-2 c and b clade types.
Conclusions
and Relevance: This study highlights the potential factors for CPE control, especially vaccination and preventing dogs from roaming freely outside houses. Isolated CPV genotypes are closely related to southern Asian genotypes, suggesting a substantial opportunity for global transmission.
3.Epidemiological, and molecular Infectious Disease investigation of Canine parvovirus-2infection in Egypt
Eman Farag AMMAR ; Yamen Mohammed HEGAZY ; Magdy AL-GAABARY ; Samah M. MOSAD ; Mohamed SALEM ; Mohamed MARZOK ; Fadhel HOUSAWI ; Mohamed AL-ALI ; Abdulrahman ALHAIDER ; Amin TAHOUN
Journal of Veterinary Science 2024;25(4):e56-
Objective:
This study examined the risk factors and survival outcomes of dogs infected with CPV-2. Molecular characterization of CPV-2 genotypes circulating in Egypt was performed to determine the evolution of CPV-2 nationally and globally.
Methods:
An age-matched case-control study was conducted on 47 control and 47 CPVinfected dogs. Conditional logistic regression analysis examined the association between the potential risk factors and CPE in dogs. Survival analysis was performed to determine the survival pattern of the infected dogs. Thirteen fecal samples from infected dogs were collected to confirm the CPV genotype by CPV-2 VP2 gene sequencing, assembly of nucleotide sequences, and phylogenic analysis.
Results:
Unvaccinated and roamer dogs had eight and 2.3 times higher risks of CPV infection than vaccinated dogs and non-roamer dogs, respectively. The risk of death from CPE was high among dogs without routine visits to veterinary clinics and among non-roamer dogs.Molecular characterization of CPV-2 confirmed its genotype identity and relationship with the CPV-2 c and b clade types.
Conclusions
and Relevance: This study highlights the potential factors for CPE control, especially vaccination and preventing dogs from roaming freely outside houses. Isolated CPV genotypes are closely related to southern Asian genotypes, suggesting a substantial opportunity for global transmission.
4.Epidemiological, and molecular Infectious Disease investigation of Canine parvovirus-2infection in Egypt
Eman Farag AMMAR ; Yamen Mohammed HEGAZY ; Magdy AL-GAABARY ; Samah M. MOSAD ; Mohamed SALEM ; Mohamed MARZOK ; Fadhel HOUSAWI ; Mohamed AL-ALI ; Abdulrahman ALHAIDER ; Amin TAHOUN
Journal of Veterinary Science 2024;25(4):e56-
Objective:
This study examined the risk factors and survival outcomes of dogs infected with CPV-2. Molecular characterization of CPV-2 genotypes circulating in Egypt was performed to determine the evolution of CPV-2 nationally and globally.
Methods:
An age-matched case-control study was conducted on 47 control and 47 CPVinfected dogs. Conditional logistic regression analysis examined the association between the potential risk factors and CPE in dogs. Survival analysis was performed to determine the survival pattern of the infected dogs. Thirteen fecal samples from infected dogs were collected to confirm the CPV genotype by CPV-2 VP2 gene sequencing, assembly of nucleotide sequences, and phylogenic analysis.
Results:
Unvaccinated and roamer dogs had eight and 2.3 times higher risks of CPV infection than vaccinated dogs and non-roamer dogs, respectively. The risk of death from CPE was high among dogs without routine visits to veterinary clinics and among non-roamer dogs.Molecular characterization of CPV-2 confirmed its genotype identity and relationship with the CPV-2 c and b clade types.
Conclusions
and Relevance: This study highlights the potential factors for CPE control, especially vaccination and preventing dogs from roaming freely outside houses. Isolated CPV genotypes are closely related to southern Asian genotypes, suggesting a substantial opportunity for global transmission.
5.Epidemiological, and molecular Infectious Disease investigation of Canine parvovirus-2infection in Egypt
Eman Farag AMMAR ; Yamen Mohammed HEGAZY ; Magdy AL-GAABARY ; Samah M. MOSAD ; Mohamed SALEM ; Mohamed MARZOK ; Fadhel HOUSAWI ; Mohamed AL-ALI ; Abdulrahman ALHAIDER ; Amin TAHOUN
Journal of Veterinary Science 2024;25(4):e56-
Objective:
This study examined the risk factors and survival outcomes of dogs infected with CPV-2. Molecular characterization of CPV-2 genotypes circulating in Egypt was performed to determine the evolution of CPV-2 nationally and globally.
Methods:
An age-matched case-control study was conducted on 47 control and 47 CPVinfected dogs. Conditional logistic regression analysis examined the association between the potential risk factors and CPE in dogs. Survival analysis was performed to determine the survival pattern of the infected dogs. Thirteen fecal samples from infected dogs were collected to confirm the CPV genotype by CPV-2 VP2 gene sequencing, assembly of nucleotide sequences, and phylogenic analysis.
Results:
Unvaccinated and roamer dogs had eight and 2.3 times higher risks of CPV infection than vaccinated dogs and non-roamer dogs, respectively. The risk of death from CPE was high among dogs without routine visits to veterinary clinics and among non-roamer dogs.Molecular characterization of CPV-2 confirmed its genotype identity and relationship with the CPV-2 c and b clade types.
Conclusions
and Relevance: This study highlights the potential factors for CPE control, especially vaccination and preventing dogs from roaming freely outside houses. Isolated CPV genotypes are closely related to southern Asian genotypes, suggesting a substantial opportunity for global transmission.
6.Efficacy of Cerebellar Transcranial Magnetic Stimulation in Treating Essential Tremor: A Randomized, Sham-Controlled Trial
Ahmad Farag Ibrahim EL-ADAWY ; Mohamed Al-Bahay M. G. REDA ; Ali Mahmoud AHMED ; Mohamed Hamed RASHAD ; Mohamed Ahmed ZAKI ; Mohie-eldin Tharwat MOHAMED ; Mohammad Ali Saeed HASSAN ; Mohammad Fathi ABDULSALAM ; Abdelmonem M HASSAN ; Ahmed Fathy MOHAMED ; Abdel-Ghaffar Ismail FAYED ; Mostafa MESHREF ; Fathy Mahmoud MANSOUR ; Ahmed E. SARHAN ; Ahmed Hassan ELSHESHINY ; Elsayed ABED
Journal of Clinical Neurology 2024;20(4):378-384
Background:
and Purpose Repetitive transcranial magnetic stimulation (rTMS) of the cerebellar hemisphere represents a new option in treating essential tremor (ET) patients. We aimed to determine the efficacy of cerebellar rTMS in treating ET using different protocols regarding the number of sessions, exposure duration, and follow-up duration.
Methods:
A randomized sham-controlled trial was conducted, in which 45 recruit patients were randomly allocated to 2 groups. The first (active group) comprised 23 patients who were exposed to 12 sessions of active rTMS with 900 pulses of 1-Hz rTMS at 90% of the resting motor threshold daily on each side of the cerebellar hemispheres over 4 weeks. The second group (sham group) comprised 22 patients who were exposed to 12 sessions of sham rTMS. Both groups were reassessed at baseline and after 1 day, 1 month, 2 months, and 3 months using the Fahn-Tolosa-Marin tremor-rating scale (FTM).
Results:
Demographic characteristics did no differ between the two groups. There were significant reductions both in FTM subscores A and B and in the FTM total score in the active-rTMS group during the period of assessment and after 3 months (p=0.031 and 0.011, respectively).However, subscore C did not change significantly from baseline when assessed at 2 and 3 months (p=0.073 and 0.236, respectively). Furthermore, the global assessment score was significantly higher in the active-rTMS group (p>0.001).
Conclusions
Low-frequency rTMS over the cerebellar cortex for 1 month showed relative safety and long-lasting efficacy in patients with ET. Further large-sample clinical trials are needed that include different sites of stimulation and longer follow-ups.
7. Flavonoid chemical composition and antidiabetic potential of Brachychiton acerifolius leaves extract
Aisha Hussein ABOU ZEID ; Radwa Hassan EL-AKAD ; Hanaa Mohamed EL-RAFIE ; Mohamed Ali FARAG ; Zeinab Abdel Aziz KANDIL ; Manal Abdel Aziz HAMED
Asian Pacific Journal of Tropical Biomedicine 2017;7(5):389-396
Objective To evaluate Brachychiton acerifolius leaf extracts as antidiabetic potential agent and to identify the main active constituents using bioactivity guided fractionation. Methods In vitro antioxidant activity was evaluated for B. acerifolius different extracts using DPPH assay and vitamin C as control. Antidiabetic activity was then determined using STZ-induced rats treated daily with ethyl acetate and 70% ethanol leaf extracts for 4 weeks at a dose of 200 g/kg body weight against gliclazide reference drug. Blood glucose, α-amylase, lipid profile, liver function enzymes and oxidative stress markers were assessed along with histopathological study for liver and pancreatic tissues. Isolation and structural elucidation of active compounds were made using Diaion and Sephadex followed by spectral analyses. Results The results indicated that ethyl acetate and ethanol leaf extracts exhibited the strongest antioxidant activity compared to that of vitamin C (IC