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Synthesis, Structural Characterization, and Antimicrobial Activities of mn（II）, Co（II）, Ni（II）, Cu（ll） and Zn（II） Complexes of Triazole-based Azodyes

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Chinese Journal of Chemistry 2011年第6期29卷 1124-1132页

作者： Khedr, abdalla m. Gaber, mohamed abd ei-Zaher, eman H. Chemistry Department Faculty of Science Tanta University Tanta Egypt Botany Department Faculty of Science Tanta University Tanta Egypt

The synthesis and characterization of new transition metal complexes of mn（ll）, Co（II）, Ni（II）, Cu（II） and Zn（II） with 3-（2-hydroxynaph-l-ylazo）-1,2,4-triazole （HL1） and 3-（2-hydroxy-3-carboxynaph-l-ylazo）-1,2,4-triazole （HL2） have been carried out. Their structures were confirmed by elemental analyses, thermal analyses, spectral and magnetic data. The IR and 1H NmR spectra indicated that HL1 and HL2 coordinated to the metal ions as bidentate monobasic ligands via the hydroxyl O and azo N atoms. The UV-Vis, ESR spectra and magnetic moment data revealed the formation of octahedral complexes [mnL1（AcO）（H2O）3] （1）, [CoL1（AcO）（HzO）3]·H2O （2）, [mnL2- （AcO）（H20）3] （6） and [CoL2（AcO）（H2O）3] （7）, [NiL1（AcO）（H2O）] （3）,[ZnLI（AcO）（HzO）]·H2O （5）, [NiL2- （AcO）（H2O）] （8）, [ZnL2（AcO）（H2O）]·H2O （10） have tetrahedral geometry, whereas [CuLI（AcO）（H2O）2] （4） and [CuL2（AcO）（H2O）2]·5H2O （9） have square pyramidal geometry.. The mass spectra of the complexes under ei-con- ditions showed the highest peaks corresponding to their molecular weights, based on the atomic weights of 55mn, 59Co, 58Ni, 63Cu and 64Zn isotopes; besides, other peaks containing other isotopes distribution of the metal. Kinetic and thermodynamic parameters of the thermal decomposition stages were computed from the thermal data using Coats-Redfern method. HL2 and complexes 6--10 were found to have moderate antimicrobial activities against Staphylococcus＇ aureus （gram positive）, Escherichia coli （gram negative） and Salmonella sp bacteria, and antifungal activity against Fusarium oxysporum, Aspergillus niger and Candida albicans. Also, in most cases, metallation increased the activity compared with the free ligand.

关键词： analytical and inorganic chemistry triazole azodyes metal(II) chelates antimicrobial activities

Spectrofluorimetric and Spectrophotometric Stability- Iwndicating methods for the Analysis of Veralipride in Presence of Its Degradants and in Spiked Human Plasma

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Chinese Journal of Chemistry 2012年第1期30卷 183-189页

作者： Salama,Nahla Nour El Din Ahmed Salem,maissa Yacoub abd El Halim,Lobna mohammed abdel fattah,Laila ei-Sayed National Organization for Drug Control and Research(NODCAR) 6 Abu Hazem StreetPyramids AveP.O.Box 29GizaEgypt Analytical Chemistry Department Faculty of PharmacyCairo UniversityCairoEgypt Analytical Chemistry Department Faculty of PharmacyMisr University for Science and Technology6th of OctoberEgypt

Spectrofluorimetric and spectrophotometric stability-indicating methods were developed and validated for analysis of veralipride （Ver） in presence of its hydrolytic and oxidative degradants. The spectrofluorimetric method was based on direct measurement of the intrinsic fluorescence of Ver at 366 nm after excitation at 299 nm using sodium lauryl sulfate （SLS） as micelle enhancer. The fluorescence intensity plot was linear over the concentration range 1.0-10.0 ***-1. The high sensitivity of the method allowed its successful application to the analysis of Ver in spiked human plasma. Two other methods were developed. They are based on the oxidative coupling reac- tion of Vet with 3-methyl benzothiazolin-2-one hydrazone （mBTH） hydrochloride in presence of ceric ammonium sulphate in an acidic medium. The first method depends on spectrophotometric measurement of the stable green colored oxidative coupling product at 660 nm. The different experimental parameters affecting the reaction were optimized. Linearity range is 10.0--100.0 ~tgomL-1. The second method depends on a fluorescence quenching effect of Vet on the fluorescence of Ce3＋. The difference in fluorescence intensity was measured at 380 nm after excitation at 300 nm. This method is applicable over the concentration ranges 0.25-2.50 pg-mL-1. The methods were validated according to the ICH guidelines. They were successfully applied for the analysis of Ver in drug substance, drug product and in laboratory prepared mixtures containing different percentages of hydrolytic and oxidative degradants.

关键词： veralipride micelle-enhanced fluorescence mBTH validation stability fluorescence quenching Ce3+

Coronavirus Infection during Pregnancy: A 1-Year Experience among Pregnant Egyptian Women

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Open Journal of Obstetrics and Gynecology 2022年第5期12卷 361-374页

作者： eman Aly abd El fattah Faculty of medicine Alexandria University Alexandria Egypt Department of Obstetrics and Gynecology Shatby Maternity Hospital Alexandria Egypt

Objectives: This study aimed to investigate the effect of COVID-19 on fetal well-being and perinatal outcomes. methods: Pregnant women with documented COVID-19 infection who visited the antenatal care clinic of El Shatby maternity Hospital, Alexandria, Egypt, from may 2020 to may 2021 were selected and classified into three groups according to the illness severity: mild, moderate, and severe. Fetal well-being was examined using the umbilical and cerebral Doppler and nonstress test (NST). The estimated fetal weight and amniotic fluid volume were also evaluated. After delivery, the neonates were evaluated through Apgar scoring at 1 and 5 min, cord blood samples, and neonatal nasopharyngeal swabs. Results: Abnormal umbilical and cerebral Doppler findings, abnormal NST results, higher incidence of cesarean section (CS) and emergency CS, and poor perinatal outcomes were observed in severe cases. moderate and mild maternal infections had neither an adverse perinatal outcome nor an effect on the mode of delivery. Conclusion: Severe COVID-19 infection can affect the perinatal outcome.

关键词： Pregnancy COVID-19 Fetus Neonatal Infection

methylene Tetra-Hydrofolate Reductase Gene Polymorphism and Endometrial Perfusion in Unexplained Female Infertility

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Open Journal of Obstetrics and Gynecology 2022年第5期12卷 386-393页

作者： eman Aly abd El fattah Faculty of medicine Alexandria University Alexandria Egypt Department of Obstetrics and Gynecology Shatby Maternity Hospital Alexandria Egypt

Aim of the study: Examing the role of methylene tetra-hydrofolate reductase (mTHFR C677T) polymorphisms in unexplained female infertility. methods: The study was conducted on women with unexplained infertility attending the Infertility Clinic at El-Shatby University Hospital, Alexandria, during the period from October 2020 to October 2021. Uterine artery Doppler assessment and detection of mTHFR C677T gene mutation were done. The frequencies of homozygous and heterozygous gene mutations were determined. Results: In group I, 35 cases had abnormal uterine artery Doppler compared to 22 normal cases in group II. As regards mTHFR C677T gene mutation, 19 cases were positive in group I (7 were homozygous and 12 were heterozygous) and only one case was positive in group II (heterozygous) which was statistically significant. Conclusion: mTHFR C677T gene polymorphisms may play a role in unexplained infertility.

关键词： Unexplained Infertility Uterine Doppler mTHFR Gene Polymorphism

Annexin A2 as a biomarker for hepatocellular carcinoma in Egyptian patients

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World Journal of Hepatology 2017年第9期9卷 469-476页

作者： mohamed K Shaker Hanzada I abdel fattah Ghada S Sabbour Iman F montasser Sara m.abdelhakam eman El Hadidy Rehab Yousry Ahmed K El Dorry Department of Tropical medicine Faculty of MedicineAin Shams University Department of Clinical Pathology Faculty of MedicineAin Shams University Department of Radiodiagnosis and Inter-ventional Radiology Faculty of MedicineAin Shams University

AIm To investigate the clinical utility of serum annexin A2(ANXA2) as a diagnostic marker for early hepatocellular carcinoma(HCC).mETHODS This study was performed in HCC Clinic of Ain Shams University Hospitals, Cairo, Egypt and included: Group 1: Fifty patients with early stage HCC(Barcelona Clinic Liver Cancer stage A); Group 2: Twenty five patients with chronic liver disease; and Control Group: Fifteen healthy, age-and sex-matched subjects who were seronegative for viral hepatitis markers. The followinglaboratory investigations were done: Viral hepatitis markers [hepatitis B surface antigen and hepatitis C virus(HCV) antibodies], HCV RNA in HCV antibody-positive patients, serum alpha fetoprotein(AFP), and serum ANXA2 *** In this study, 88% of HCC patients(n = 44) were HCVpositive, while HBV infection represented only 8% of all HCC patients(n = 4); and two patients were negative for both viral markers. A highly significant difference was found between patients with HCC and chronic liver disease as well as controls with regard to serum ANXA2 levels(130, IQR 15-240; 15, IQR 15-17; and 17, IQR 15-30 ng/m L, respectively). The area under the curve of ANXA2 was 0.865; the cut-off value was established to be 18 ng/mL with a diagnostic sensitivity of 74% and a specificity of 88%, while the sensitivity and specificity of AFP at the cut-off value of 200 ng/dL were 20% and 100%, *** Serum ANXA2 may serve as a biomarker for the early detection of HCC.

关键词： Hepatocellular carcinoma Hepatitis C virus Annexin A2 Alpha-fetoprotein Tumor markers

Application of GC/eimS in Combination with Semi-Empirical Calculations for Identification and Investigation of Some Volatile Components in Basil Essential Oil

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International Journal of Analytical mass Spectrometry and Chromatography 2016年第1期4卷 14-25页

作者： mamoun S. m. abd El-Kareem mohamed abd El fattah Rabbih Ezzat Taha mohamed Selim Elsherbiny abd El-monem Elsherbiny Ayman Yasen El-Khateeb molcular and Atomic Physics Unit Experimental Nuclear Physics Dept. Nuclear Research Centre Egyptian Atomic Energy Authority Inshas Cairo Egypt Plant Pathology Department Faculty of Agriculture Mansoura University Mansoura Egypt Agricultural Chemistry Department Faculty of Agriculture Mansoura University Mansoura Egypt

Volatile components in the extracts of basil leaves (Ocimum basilicum L.) were identified by gas chromatography/mass spectrometry (GC/mS) with electron ionization (ei) mode. The major volatile components of basil under investigation are α-pinene, sabinene, β-pinene, d-limonene, eucalyptol, l-linalool and estragole. Electron ionization mass spectra of these compounds have been obtained and investigated. Furthermore, the semi-empirical mNDO [modified Neglect of Diatomic Overlap] method was used to calculate the thermochemical data for the structural properties of these compounds.

关键词： Gas Chromatograph mass Spectrometer Semi-Empirical Calculations Basil Essential Oil

Educational Program for Pregnant Women Regarding Obstetrics Dangerous Signs in Rural Areas

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Open Journal of Obstetrics and Gynecology 2021年第5期11卷 529-552页

作者： mai Ahmed Gobran marwa Tharwat abdel Fatah mohamed S. H. Ramadan Ghada A. Amer m. mahmoud Rabeh Rofida m. Elshafei Almandouh Hussein Bosilah Hala Hassan Saied Khalil Sharbat Thabet Hassanine manal mansour mostafa mohamed Sobhy Bakry Safaa A. Ibrahim eman Ramadan abd El fattah Abeer m. abdelbary Pathology Faculty of Medicine Zagazig University Zagazig Egypt Anatomy Faculty of Medicine Zagazig University Zagazig Egypt Obstetrics & Gynecology Faculty of Medicine Zagazig University Zagazig Egypt Zoology (Physiology) Department Faculty of Science Zagazig University Zagazig Egypt Stem Sharqiai Zagazig Egypt Nursing Faculty of Medicine Fayoum University Fayoum Egypt Obstetrics & Gynecology Faculty of medicine Fayoum University Fayoum Egypt

Background: Complications linked to postpartum & pregnancy are one of the major causes of female death. In order to understand the causes of complications and encourage women to take sufficient action in order to receive emergency treatment, a critical step should therefore be taken to minimize complications related to pregnancy, in order to ensure the safety of both women and newborns. Aim of the work: Evaluate the effectiveness of the education programs for pregnant women on obstetric danger signs in rural areas and help minimize the incidence of pregnancy loss and comorbidities. Methods: A quasi-experimental design on 70 women from a population of through 372 women in six-month in antenatal clinics recruited from the previously mentioned settings with pre- and post-test was conducted at antenatal clinics (M.C.H centers) affiliated to the available geographical health zones in EL-fayoum rural area including: Al-sheikh hassan at sanorse. We collected the data of women characteristics by a self-administered interview q

关键词： Obstetric Danger Signs Knowledge Practice Obstetric Complications

The Palestinian Terrestrial Vertebrate Fauna Preserved at the Biology Exhibitions of the Universities of the Gaza Strip

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Research in Ecology 2020年第4期2卷 9-21页

作者： abdel fattah N abd Rabou Nour J musallam eman J musallam Kamal E Elkahlout Kamal J Elnabris Tarek A El-Bashiti Ismail I abdel Aziz Reham m Ishneiwra Eqbal S Radwan Hana S Saada Ashraf A Shafei Nedal A Fayyad Saleh N mwafy Huda E Abu Amra Ramy A Abu Alajeen mohammed F Abu Owda Randa N Alfarra Haifaa A Hassouna Reem A Hassouna mohammed R Al-Agha mohammed A abd Rabou Department of Biology and Biotechnology Islamic University of GazaGaza StripPalestine Department of English Islamic University of GazaGaza StripPalestine Department of Biology Al-Azhar UniversityGaza StripPalestine Department of Biology Al-Aqsa UniversityGaza StripPalestine Department of Geography Al-Aqsa UniversityGaza StripPalestine Department of Curricula and Teaching methods Islamic University of GazaGaza StripPalestine Department of Curricula and Teaching methods Ministry of EducationGaza StripPalestine Department of Pharmaceutical Sciences University of PalestineGaza StripPalestine Department of Environment and Earth Sciences Islamic University of GazaGaza StripPalestine Department of Information Technology University College of Applied SciencesGaza StripPalestine

The Gaza Strip(365 km^(2))of Palestine(27,000 km^(2))is home to a wealth of terrestrial vertebrate *** of these faunistic species find their ways to preservation at the local ***,the current study comes to document the Palestinian terrestrial vertebrate fauna acquired by the biology exhibitions(BEs)of Al-Azhar University,Islamic University of Gaza and Al-Aqsa University that are located at the Gaza City of the Gaza *** amphibians,reptiles,birds and mammals preserved at BEs of the universities in question were surveyed and scientifically classified during a three-month period extending from January to march,*** study showed that all BEs of local universities are underdeveloped,lacking attention and suffer from specimen scarcity and good *** BE at Al-Azhar University is the best in the arrangement and preservation of bird specimens.A total number of 200 specimens belonging to 54 terrestrial vertebrate fauna species,39 families and 17 orders was recorded at *** constituted 40.7%of the total species recorded,followed by birds(38.9%),mammals(14.8%)and amphibians(5.6%).The Islamic University of Gaza was considered the best in terms of the number of preserved species(39.8%),followed by Al-Azhar University(36.3%)and Al-Aqsa University(23.9%).The Common Toad(Bufo viridis)was the most preserved among the amphibian species *** was the biggest reptilian order,comprising 20 species(8 lizards and 12 snakes),with the Syrian Black Snake(Coluber jugularis asianus)was the *** Palestine Viper(Vipera palaestinae)is endemic to Palestine and most venomous and dangerous to human *** Great White Pelican(Pelecanus onocrotalus)was the largest Palestinian bird preserved at BE of Al-Azhar *** Egyptian mongoose(Herpestes ichneumon)and the Common Badger(meles meles)were the biggest mammalian specimens preserved,while the Palestine mole-rat(Spalax leucodon ehrenbergi)was the only Palestine endemic spe

关键词： Terrestrial vertebrate fauna Preservation Biology exhibitions Gaza universities Gaza Strip Palestine