1
|
El-Assy AM, Amer HM, Ibrahim HM, Mohamed MA. A novel CNN architecture for accurate early detection and classification of Alzheimer's disease using MRI data. Sci Rep 2024; 14:3463. [PMID: 38342924 PMCID: PMC10859371 DOI: 10.1038/s41598-024-53733-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 02/04/2024] [Indexed: 02/13/2024] Open
Abstract
Alzheimer's disease (AD) is a debilitating neurodegenerative disorder that requires accurate diagnosis for effective management and treatment. In this article, we propose an architecture for a convolutional neural network (CNN) that utilizes magnetic resonance imaging (MRI) data from the Alzheimer's disease Neuroimaging Initiative (ADNI) dataset to categorize AD. The network employs two separate CNN models, each with distinct filter sizes and pooling layers, which are concatenated in a classification layer. The multi-class problem is addressed across three, four, and five categories. The proposed CNN architecture achieves exceptional accuracies of 99.43%, 99.57%, and 99.13%, respectively. These high accuracies demonstrate the efficacy of the network in capturing and discerning relevant features from MRI images, enabling precise classification of AD subtypes and stages. The network architecture leverages the hierarchical nature of convolutional layers, pooling layers, and fully connected layers to extract both local and global patterns from the data, facilitating accurate discrimination between different AD categories. Accurate classification of AD carries significant clinical implications, including early detection, personalized treatment planning, disease monitoring, and prognostic assessment. The reported accuracy underscores the potential of the proposed CNN architecture to assist medical professionals and researchers in making precise and informed judgments regarding AD patients.
Collapse
Affiliation(s)
- A M El-Assy
- Electronics and Communications Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt.
| | - Hanan M Amer
- Electronics and Communications Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt
| | - H M Ibrahim
- Communication and Electronics Engineering Department, Nile Higher Institute for Engineering and Technology-IEEE Com Society Member, Mansoura, Egypt
| | - M A Mohamed
- Electronics and Communications Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt
| |
Collapse
|
2
|
Ibrahim HM, Abdelrahman AE, Elwan A, Bakry A, Fahmy MM, Abdelhamid MI, Abdelwanis AH, Fouad EM. Prognostic Impact of FSTL3, ADAM12, and FAT4 in Patients of Colon Cancer: Clinicopathologic Study. Appl Immunohistochem Mol Morphol 2023; 31:673-681. [PMID: 37751246 DOI: 10.1097/pai.0000000000001157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 08/18/2023] [Indexed: 09/27/2023]
Abstract
There is a cellular crosstalk between Wnt/β-catenin and Hippo/Yes-related protein 1 signaling paths in colon cancer (CC) which promotes EMT processes that mediate the metastatic progression of CC. We aimed to evaluate follistatin-like 3 (FSTL3), ADAM12, and FAT4 expressions in CC. A statistical analysis was done to establish how disease-free survival, overall survival (OS), and relapse all performed a prognostic role. High FSTL3 was detected in 68% of CC and significantly related to left-sided tumors ( P = 0.002) and the advanced tumor features, such as metastasis ( P = 0.010), pT ( P = 0.006), high grade ( P = 0.005), lymph node contribution ( P = 0.013), and advanced stage ( P = 0.003). Positive ADAM12 expression was observed in 60% and significantly related to left-sided tumors ( P = 0.001) and significantly common in high grade ( P = 0.028), lymph node involvement ( P < 0.001), and advanced stage ( P = 0.004). Low FAT4 expression was recognized in 76% and linked with the right-sided tumors ( P = 0.036). FAT4 expression was contrariwise linked with CC grade ( P < 0.001). Furthermore, FAT4 expression was inversely correlated with lymph node involvement ( P = 0.002), metastasis ( P = 0.046), and advanced stage ( P = 0.002). During the follow-up, 14 cases were relapsed and positively associated with high FSTL3 expression ( P = 0.001) and ADAM12 expression ( P < 0.001), but negatively linked with FAT4 expression ( P = 0.003). Shorter disease-free survival was substantially correlated with positive ADAM12, extreme FSTL3, and low FAT4 expression ( P < 0.001, P = 0.002, P = 0.003, consecutively). Moreover, Kaplan-Meier curves demonstrated a significant correlation between shorter OS with extreme FSTL3, positive ADAM12, and low FAT4 ( P = 0.004, <0.001, 0.019, consecutively). High FSTL3, positive ADAM12, and low FAT4 expression are unfavorable prognostic influences in CC that may be accountable for relapse and therapeutic resistance in CC.
Collapse
Affiliation(s)
| | | | - Amira Elwan
- Department of Clinical Oncology and Nuclear Medicine
| | | | | | | | | | | |
Collapse
|
3
|
Ibrahim HM, Abdelrahman AE, Elsebai E, Gharieb SA, Fahmy MM, Ramadan MS, Wasfy MA, Abdullatif A. Clinicopathologic Impact of NANOG, ZEB1, and EpCAM Biomarkers on Prognosis of Serous Ovarian Carcinoma. Asian Pac J Cancer Prev 2023; 24:3247-3259. [PMID: 37774079 PMCID: PMC10762767 DOI: 10.31557/apjcp.2023.24.9.3247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Accepted: 09/10/2023] [Indexed: 10/01/2023] Open
Abstract
OBJECTIVES Serous ovarian carcinoma (SOC) is a biologically heterogeneous with different genomic and molecular profiles, beside clinical response to the chemotherapy with subsequent in obstacles in starting unified, acceptable treatments and so we assess immunoexpression of Nanog, ZEB1, and EpCAM in SOC. METHODS In this study, the immunoexpression of Nanog, ZEB1, and EpCAM was studied in 60 cases of SOC. Overall survival (OS), disease-free survival (DFS) data and response to chemotherapy were analyzed. RESULTS NANOG was immunostained in 65% of the cases with a significant association with tumor grade, lymph node metastasis, and FIGO stage (p < 0.001 for each). ZEB1 showed moderate- high expression in 58.3% of the cases with significant up-regulation of ZEB1 expression with SOC grade, nodal metastasis, and SOC FIGO stage (p<0.001). EpCAM revealed high expression in 60% of the cases with significant association with higher grade, nodal metastasis, and advanced stage (p < 0.001 for each). Up-regulation of Nanog was significantly associated with response to chemotherapy, relapse, shorter OS and DFS (p < 0.001 for each). ZEB1 overexpression exhibited a significant association with response to chemotherapy (p= 0.012), relapse, shorter OS and DFS (p<0.001 for each). Moreover, the high EpCAM had a significant association with response to chemotherapy (p= 0.043), relapse (p < 0.001) shorter OS (p=0.006) and DFS (p< 0.001). CONCLUSIONS Up-regulation of Nanog and ZEB-1 and EpCAM perhaps promote an aggressive SOC with a high risk of relapse and unfavorable response to standard chemotherapy regimen.
Collapse
Affiliation(s)
- Hanaa M. Ibrahim
- Department of Pathology, Faculty of Medicine, Zagazig University, Egypt.
| | | | - Eman Elsebai
- Department ofClinical Oncology, Faculty of Medicine, Zagazig University, Egypt.
| | - Shimaa A. Gharieb
- Department ofClinical Oncology, Faculty of Medicine, Zagazig University, Egypt.
| | - Moamna M. Fahmy
- Department ofClinical Oncology, Faculty of Medicine, Zagazig University, Egypt.
| | - Mohamed S.H. Ramadan
- Department of Gynecology and Obstetrics, Faculty of Medicine, Zagazig University, Egypt.
| | - Mohamed A. Wasfy
- Department of Gynecology and Obstetrics, Faculty of Medicine, Zagazig University, Egypt.
| | - Asmaa Abdullatif
- Department of Pathology, Faculty of Medicine, Zagazig University, Egypt.
| |
Collapse
|
4
|
Ahmed MM, Hegazy AA, Embaby A, Nawwar EM, Hegazy SA, Ibrahim HM, Gobran MA. TOX Outperforms FOXP3, CD4 and GATA3 in Histopathological Diagnosis of Early Mycosis Fungoides. Turk Patoloji Derg 2023; 39:15-22. [PMID: 35642346 PMCID: PMC10518132 DOI: 10.5146/tjpath.2022.01578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 04/20/2022] [Indexed: 01/19/2023] Open
Abstract
OBJECTIVE Mycosis fungoides (MF) is the most common type of cutaneous lymphoma. The early stage of MF is a difficult diagnostic case, as it is often confused with many benign inflammatory dermatoses (BID). The study aimed to evaluate the diagnostic utility of TOX, FOXP3, CDD4 and GATA3 in differentiating early stages of MF from histologically overlapping BID lesions. MATERIAL AND METHOD A retrospective cross-sectional study was performed, in which immunohistochemistry (IHC) was used to evaluate the expression of TOX, FOXP3, CD4 and GATA3 in formalin-fixed paraffin-embedded (FFPE) sections of skin lesions from 30 cases with BID and 30 patients with early-stage MF. RESULTS The association between TOX expression and early-stage MF was statistically significant (P < 0.001). TOX had the highest sensitivity of 96.77% and accuracy of 85.71% in diagnosis of MF; followed by CD4 with sensitivity of 85.71% and accuracy of 78.95%; and then, GATA3 with sensitivity of 76.7% and finally FOXP3 with sensitivity of 70.0%. CONCLUSION TOX is suggested to be of higher diagnostic value in the early stages of MF than the conventionally used CD4 and other markers examined.
Collapse
Affiliation(s)
- Mona Mostafa Ahmed
- Department of Pathology, Zagazig University, Faculty of Medicine, Zagazig, Egypt
| | - Abdelmonem Awad Hegazy
- Department of Human Anatomy and Embryology, Zagazig University, Faculty of Medicine, Zagazig, Egypt; Department of Medical Biotechnology, Misr University for Science and Technology (MUST), College of Biotechnology, Six of October City, Egypt
| | - Ahmed Embaby
- Department of Internal Medicine, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Esraa Mohammad Nawwar
- Department of Dermatology, Al-Ahrar Teaching Hospital and Zagazig University Hospitals, Zagazig, Egypt
| | | | - Hanaa M. Ibrahim
- Department of Pathology, Zagazig University, Faculty of Medicine, Zagazig, Egypt
| | - Mai Ahmed Gobran
- Department of Pathology, Zagazig University, Faculty of Medicine, Zagazig, Egypt
| |
Collapse
|
5
|
Abdelrahman AE, El-Azony A, Elsebai E, Ibrahim HM. Prognostic Impact of LGR5, Prox1, and Notch1 Biomarkers in Stage II to III Colon Cancer. Appl Immunohistochem Mol Morphol 2022; 30:126-135. [PMID: 34657081 DOI: 10.1097/pai.0000000000000983] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 09/14/2021] [Indexed: 11/26/2022]
Abstract
The potentiation and activation of Wnt signaling pathways are now assumed to mediate the self-renewal and proliferation of colon cancer stem cells that are responsible for therapeutic resistance, tumor relapse, and metastasis. We aimed to evaluate LGR5, Prox1, and Notch1 immunohistochemical expression in stage II to III colon cancer. Their predictive role of tumor relapse, overall survival, and disease-free survival was statistically analyzed. Our results revealed that high LGR5 expression was identified in 56.7% of the patients, LGR5 expression was significantly associated with left-sided tumors (P<0.001). Moreover, its expression was significantly associated with the unfavorable tumor characteristics including high grade, deep invasion (pT), lymph node metastasis, and advanced tumor stage (P<0.001 for each). High Prox1 expression was observed in 65% of the cases, and its expression was significantly associated with tumor grade, lymph node metastasis, and the advanced tumor stage (P=0.004, 0.009, 0.016, respectively). Positive Notch1 expression was identified in 35% of patients, and it was inversely associated with high grade lymph node metastasis, deep invasion (pT), and advanced tumor stage (P<0.001 for each). During the follow-up period, the tumor relapse was significantly associated with high LGR5, high Prox1, and negative Notch1 expression. Shorter overall survival and disease-free survival were significantly associated with high LGR5, high Prox1, and negative Notch1 expression. High LGR5, high Prox1, and negative Notch1 expression are unfavorable prognostic factors in colon cancer. Prox1 is a crucial regulator of Notch-independent LGR5+ stem cells that is mostly responsible for relapse and therapeutic resistance in stage II to III colon cancer.
Collapse
Affiliation(s)
| | - Ahmed El-Azony
- Clinical Oncology and Nuclear Medicine, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Eman Elsebai
- Clinical Oncology and Nuclear Medicine, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | | |
Collapse
|
6
|
Khayal EES, Ibrahim HM, Shalaby AM, Alabiad MA, El-Sheikh AA. Combined lead and zinc oxide-nanoparticles induced thyroid toxicity through 8-OHdG oxidative stress-mediated inflammation, apoptosis, and Nrf2 activation in rats. Environ Toxicol 2021; 36:2589-2604. [PMID: 34553816 DOI: 10.1002/tox.23373] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 08/26/2021] [Accepted: 09/06/2021] [Indexed: 06/13/2023]
Abstract
A human is exposed to a chemical mixture rather than a single chemical, particularly with the wide spread of nanomaterials. Therefore, the present study evaluated the combined exposure of lead acetate (Pb) and zinc oxide-nanoparticles (ZnO-NPs) compared to each metal alone on the thyroid gland of adult rats. A total of 30 adult male albino rats were divided into four groups, group I (control), group II received Pb (10 mg/kg), group III received ZnO-NPs (85 mg/kg) and group IV co-administrated the two metals in the same previous doses. The materials were gavaged for 8 weeks. The toxicity was assessed through several biochemical parameters. Our results revealed significant body weight reduction relative to increased thyroid weights, decreased both of serum-free triiodothyronine (FT3), tetra-iodothyronine (FT4), increased thyroid-stimulating hormone (TSH), increased serum and thyroid levels of Pb and zinc, significant elevation in tumor necrosis factor-α (TNF-α), reduction in interleukin 4 (IL4), upregulation of Bax, and downregulation of Bcl-2 genes. Additionally, there was significant overexpression of nuclear factor erythroid 2-related factor 2(Nrf2), 8-Hydroxydeoxyguanosine(8-OHdG), the elevation of tissues malondialdehyde (MDA), reduction of tissues total antioxidant capacity (TAC), and disruptive thyroid structural alterations in all metals groups with marked changes in the combined metals group. In conclusion, the combined exposure of Pb and ZnO-NPs induced pronounced toxic thyroid injury, pointing to additive effects in rats than the individual metal effects through different significant changes of disruptive thyroid structural alterations related to the loading of thyroid tissues with Pb and zinc metals producing oxidative stress that mediated inflammation and apoptosis.
Collapse
Affiliation(s)
- Eman El-Sayed Khayal
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Hanaa M Ibrahim
- Pathology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Amany Mohamed Shalaby
- Histology and Cell Biology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Mohamed Ali Alabiad
- Pathology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Arwa A El-Sheikh
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| |
Collapse
|
7
|
Ibrahim HM, Zommara MAE, Elnaggar ME. Ameliorating effect of selenium nanoparticles on cyclophosphamide induced hippocampal neurotoxicity in male rats: light, electron microscopic and immunohistochemical study. Folia Morphol (Warsz) 2020; 80:806-819. [PMID: 33084015 DOI: 10.5603/fm.a2020.0117] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 09/11/2020] [Accepted: 09/13/2020] [Indexed: 11/25/2022]
Abstract
BACKGROUND Cyclophosphamide (CPH) is a widely used chemotherapeutic drug that can affect the hippocampal neurocytes with a subsequent effect on memory and cognitive functions. Nanomedicine has the potential to overcome the current chemotherapeutic side effects, because of the unique nanoscale size and distinctive bioeffects of nanomaterials. So, the present study aims to investigate the potential ameliorative effect of the biologically synthesized nano-selenium (nano Se) on CPH induced hippocampal neurotoxicity. MATERIALS AND METHODS Twenty four rats were randomly classified into four groups of 6 rats each: control group, nano Se group (dose of 0.5 mg biological nano Se /kg daily via oral gavage), CPH group (dose of 20 mg CPH/kg daily intraperitoneally), and CPH plus Nano Se group. After 4 weeks, the rats were sacrificed and the hippocampus was excised and processed. Sections were stained with H&E stain and immunohistochemically stained for caspase 3 (apoptosis marker) and GFAB (astrocytic activity marker). Morphometric analysis and transmission electron microscopic (TEM) examination were also done. RESULTS Control and nano Se groups revealed no structural changes. By light microscopy, CPH group showed degeneration and necrosis of hippocampal neurocytes, significantly reduced thickness of the neurocyte cell layers, increased expression of GFAB and caspase 3 immunostains and significantly elevated apoptotic index. Moreover, neurocytes damage, mitochondrial cristeolysis, mild dilation of rough endoplasmic reticulum (Er), and disrupted neurolemmal sheaths of nerve fibers were also demonstrated by TEM. Nano Se cotreatment in the fourth group reversed all the aforementioned deleterious changes that induced by CPH in the hippocampal neurocytes. CONCLUSIONS Treatment with CPH caused damage to hippocampal neurocytes that can be reversed by biological nano Se co-treatment.
Collapse
Affiliation(s)
- H M Ibrahim
- Department of Anatomy & Embryology, Faculty of Medicine, Ain shams University, Abbasia, Cairo, Egypt.
| | - M A E Zommara
- Dairly science Department, Faculty of agriculture, Kaferelshikh University, Kaferelshikh, Kaferelshikh, Egypt
| | - M E Elnaggar
- Department of Anatomy & Embryology, Faculty of Medicine, Ain shams University, Abbasia, Cairo, Egypt
| |
Collapse
|
8
|
Ibrahim HM, Mostafa M, Kandile NG. Potential use of N-carboxyethylchitosan in biomedical applications: Preparation, characterization, biological properties. Int J Biol Macromol 2020; 149:664-671. [PMID: 32014481 DOI: 10.1016/j.ijbiomac.2020.01.299] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/29/2020] [Accepted: 01/30/2020] [Indexed: 11/24/2022]
Abstract
N-carboxyethylchitosan (CECS) was successfully prepared via Michael addition reaction of chitosan (CS) with acrylic acid in water. The structure of CECS was characterized by Fourier transform Infra-Red spectrometry (FT-IR), 1HNMR, elemental analysis, X-ray diffraction (XRD), thermogravimetric analysis (TGA) and Differential scanning calorimetry (DSC). Antibacterial activity of CECS was evaluated against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) by using minimum inhibition concentration (MIC). The results showed that the prepared CECS soluble in water at wide range of pH values. In addition, it has amorphous character improve its chemical reactivity than CS itself, in addition it has been showed stronger antibacterial activity than chitosan itself due to the presence of both -COOH and -NH2 groups and the CECS shows higher antibacterial activity towards S. aureus than E. coli. Finally, the cytotoxicity of CECS has been evaluated through Cell viability assay, which confirm that CECS is non-toxic and tissue compatible like CS.
Collapse
Affiliation(s)
- H M Ibrahim
- Textile Research Division, National Research Centre, 33 El Bohouthst. (Former El Tahrir St.), Dokki, P.O.12622, Giza, Egypt.
| | - M Mostafa
- Chemistry Department, Faculty of Girls for Arts, Science and Education, Ain Shams University, Heliopolis 11757, Cairo, Egypt
| | - N G Kandile
- Chemistry Department, Faculty of Girls for Arts, Science and Education, Ain Shams University, Heliopolis 11757, Cairo, Egypt
| |
Collapse
|
9
|
El-Sayed SM, Ibrahim HM. Effect of high-fat diet-induced obesity on thyroid gland structure in female rats and the possible ameliorating effect of metformin therapy. Folia Morphol (Warsz) 2019; 79:476-488. [PMID: 31489607 DOI: 10.5603/fm.a2019.0100] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 08/18/2019] [Indexed: 11/25/2022]
Abstract
BACKGROUND Obesity is known to induce a state of lipotoxicity that affects the different organs of the body. Metformin is an antidiabetic drug commonly used in obesity treatment. It was known to improve thyroid function and its regulating hormones. Structural changes in the thyroid gland associated with obesity have not been well investigated. So, the aim of the present study is to detect structural changes in thyroid gland induced by obesity and to investigate the possible protective role of metformin therapy. MATERIALS AND METHODS Thirty adult female albino rats were divided into three groups (10 rats each). Group I (control group), group II (rats fed with a high-fat diet), and group III (rats fed with a high-fat diet and treated with metformin therapy). After 12 weeks, rats from all groups were sacrificed. Blood samples were taken for measurement of lipid profile, thyroid stimulating hormone (TSH), free T3 and free T4. Thyroid glands were extracted and processed for histological and ultrastructural study. Morphometric measurements for the colloid area of thyroid follicles and height of the follicular cells were done. RESULTS Group I displayed normal biochemical parameters and architecture of the thyroid gland. Group II revealed disordered lipid profile, high TSH, free T3 and T4. Microscopically, large thyroid follicles with excessive colloid accumulation and decreased follicular cells height were seen. Some follicular cells showed pyknotic nuclei, vacuolated cytoplasm and disrupted basement membrane with mast cell infiltration of the thyroid tissue. Ultrastructurally, group II follicular cells showed loss of apical microvilli, dense shrunken nuclei, dilated endoplasmic reticulum, swollen damaged mitochondria with large intracellular vacuoles and colloid droplets. In group III, the biochemical parameters and structure of thyroid follicles were improved, and they had a near-normal appearance. CONCLUSIONS Obesity induced by high-fat diet in female rats structurally and functionally changed the thyroid gland in a way that may explain hypothyroidism associated with obesity. These changes were improved by metformin therapy.
Collapse
Affiliation(s)
- S M El-Sayed
- Department of Anatomy and Embryology, Faculty of Medicine, Ain Shams University, Cairo, Egypt.
| | - H M Ibrahim
- Department of Anatomy and Embryology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| |
Collapse
|
10
|
Abdelrahman AE, Ibrahim HM, Elsebai EA, Ismail EI, Elmesallamy W. The clinicopathological significance of CD133 and Sox2 in astrocytic glioma. Cancer Biomark 2019; 23:391-403. [PMID: 30248046 DOI: 10.3233/cbm-181460] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND The treatment strategies of astrocytoma have not changed considerably due to the restricted appreciation of its biology. OBJECTIVES This study aimed to evaluate the expression of the stem cell-related proteins (CD133 and Sox2) and their prognostic value in astrocytic glioma. METHODS The immunohistochemical expression of CD133 and Sox2 in 40 patients with an astrocytic glioma of different grades was studied. The recorded data on the overall survival (OS), progression-free survival (PFS) and the response to the therapeutic protocol were collected and lastly analyzed. RESULTS CD133 expression was observed in 87.5% of the cases, while positive Sox2 expression was found in all the studied cases. There was a significant association of CD133 expression with the histological grade and the tumor size (p< 0.001). A significant association of Sox2 with the histological grade and the tumor size was noted (p= 0.004, p= 0.006 respectively). Up-regulation of both CD133 and Sox2 had a significant association with poor clinical response to the therapy (p< 0.001 for each). Shorter OS and PFS were related to CD133 and Sox2 overexpression. CONCLUSIONS Astrocytoma with CD133 and Sox2 overexpression had an unfavorable prognosis and poor clinical response to the current therapeutic protocol.
Collapse
Affiliation(s)
- Aziza E Abdelrahman
- Pathology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Hanaa M Ibrahim
- Pathology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Eman A Elsebai
- Clinical Oncology and Nuclear Medicine Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Eman I Ismail
- Clinical Oncology and Nuclear Medicine Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Wael Elmesallamy
- Neurosurgery Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| |
Collapse
|
11
|
Sherief LM, Amer OT, Mokhtar WA, Kamal NM, Ibrahim HM. Pediatric sarcoidosis presenting as huge splenomegaly. Pediatr Int 2017; 59:366-367. [PMID: 28317306 DOI: 10.1111/ped.13219] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 11/06/2016] [Accepted: 11/28/2016] [Indexed: 11/30/2022]
Affiliation(s)
- Laila M Sherief
- Department of Pediatrics, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Osama T Amer
- Department of Pediatrics, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Wesam A Mokhtar
- Department of Pediatrics, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Naglaa M Kamal
- Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Hanaa M Ibrahim
- Department of Histopathology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| |
Collapse
|
12
|
Badejoko OO, Ibrahim HM, Awowole IO, Bola-Oyebamiji SB, Ijarotimi AO, Loto OM. Upright or dorsal? childbirth positions among antenatal clinic attendees in Southwestern Nigeria. Trop J Obstet Gynaecol 2016. [DOI: 10.4103/0189-5117.192219] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
13
|
Ibrahim IY, Ibrahim HM, Aziz NM, Rahman DM. The protective role of the opioid antagonist LY255582 in the management of high fat diet-induced obesity in adult male albino rats. Endocr Regul 2015; 49:198-205. [PMID: 26494038 DOI: 10.4149/endo_2015_04_198] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
OBJECTIVES The involvement of the opioid system in energy balance has been known for several decades but many questions remain unanswered. Therefore, this study was designed to investigate the effect of the non-selective opioid receptor antagonist (LY255582) on high fat diet (HFD)-induced obesity. METHODS Twenty-four adult male albino rats were divided into 4 groups: Control, HFD non-treated, HFD+LY255582 treated during the first 4 weeks and Obese-LY255582- treated groups during the following 4 weeks after the induction of obesity. LY255582 (0.31 mg/kg, s.c.) was administrated daily with HFD feeding. Blood samples were collected for measurement of lipid profile, glucose, insulin, and leptin. Body weight, body mass index (BMI), and food intake were also measured. RESULTS Consumption of HFD resulted in a significant increase in body weight, body mass index (BMI), glucose, insulin, leptin levels, and induced a state of dyslipideamia. Opioid antagonist LY255582 administration with HFD decreased food intake, body weight and BMI, in addition to the improvement of HFD related metabolic abnormalities (dyslipidemia and insulin resistance) during the dynamic phase of obesity development than in animals with already developed dietary obesity. CONCLUSION The use of opioid antagonist may be a promising approach in treatment of HFD-induced obesity.
Collapse
|
14
|
Suleiman BM, Ibrahim HM, Abdulkarim N. Determinants of stillbirths in katsina, Nigeria: a hospital-based study. Pediatr Rep 2015; 7:5615. [PMID: 25918622 PMCID: PMC4387327 DOI: 10.4081/pr.2015.5615] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Revised: 11/20/2014] [Accepted: 12/06/2014] [Indexed: 12/13/2022] Open
Abstract
Every year, about 3 million stillbirths occur globally, almost a third occurring during the intra-partum period. Almost all stillbirths (98%) occur in low and middle income countries, with Nigeria having the third largest burden. The aim of this study was to determine the stillbirth rate and its determinants in the Federal Medical Centre Katsina, located in north western Nigeria. This study was a retrospective review of all deliveries conducted between 1(st) March 2010 and 31(st) December 2012 in Federal Medical Centre Katsina. Data were extracted from labor room and theatre records, and patient folders. Cases were matched with controls by booking status. The privacy and confidentiality of information retrieved from cases and controls was also ensured by anonymizing the data retrieved. No conflict of interest was identified. The data was analyzed with SPSS 20. During the period under review, there were 6628 deliveries, out of which 331 of the products were stillborn. The stillbirth rate was 46.9±3.6 per 1000 deliveries. Determinants of stillbirths were antepartum hemorrhage, hypertensive disorders of pregnancy, uterine rupture, low birth weight and congenital fetal malformations. The study highlighted the poor perinatal health in the study population.
Collapse
Affiliation(s)
- Bello M Suleiman
- Neonatal Intensive Care Unit, Department of Pediatrics, Federal Medical Centre , Katsina, Nigeria
| | - H M Ibrahim
- Department of Obstetrics and Gynecology, Federal Medical Centre , Katsina, Nigeria
| | - N Abdulkarim
- Department of Obstetrics and Gynecology, Federal Medical Centre , Katsina, Nigeria
| |
Collapse
|
15
|
Barhoum A, Ibrahim HM, Hassanein TF, Hill G, Reniers F, Dufour T, Delplancke MP, Van Assche G, Rahier H. Preparation and characterization of ultra-hydrophobic calcium carbonate nanoparticles. ACTA ACUST UNITED AC 2014. [DOI: 10.1088/1757-899x/64/1/012037] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
16
|
Ibrahim SM, Bukar M, Mohammed Y, Audu BM, Ibrahim HM. Prevalence of vaginal candidiasis among pregnant women with abnormal vaginal discharge in Maiduguri. Niger J Med 2013; 22:138-142. [PMID: 23829126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023] Open
Abstract
BACKGROUND Pregnancy represents a risk factor in the occurrence of vaginal candidiasis. OBJECTIVES To determine the prevalence and clinical features associated with abnormal vaginal discharge and C. albicans infection in pregnant women. METHODS High vaginal swab samples and data on epidemiological characteristics were collected from 400 pregnant women with complaints of abnormal vaginal discharge at booking clinic of University of Maiduguri Teaching Hospital. The data was analysed using SPSS 16.0 statistical software. RESULTS The prevalence of abnormal vaginal discharge in pregnancy was 31.5%. The frequency of abnormal vaginal discharge was 183 (45.8%) among those aged 20-24 years, 291 (72.8%) in multipara, 223 (55.8%) in those with Primary education and 293 (73.2%) in unemployed. Vulval pruritus 300 (75.0%) was significantly related to abnormal vaginal discharge (P < 0.001). The prevalence of C. albicans was 41%. The frequencies of Vulval itching, Dyspareunia and vulval excoriation among those with candidiasis were 151 (50.3%), 14 (56.0%) and 75 (75.0%) respectively (P < 0.001). CONCLUSION The prevalence of abnormal vaginal discharge in pregnancy was high in this study and C. albicans was the commonest cause. It is recommended that a pregnant woman complaining of abnormal vaginal discharge be assessed and Laboratory diagnosis done in order to give appropriate treatment.
Collapse
Affiliation(s)
- S M Ibrahim
- Department of Obstetrics and Gynaecology, College of Medical Sciences, University of Maiduguri, Maiduguri, Nigeria.
| | | | | | | | | |
Collapse
|
17
|
Abstract
Gynaecological malignancies contribute to the global burden of diseases and are of public health interest. The objective of this study was to determine the pattern of distribution of gynaecological malignancies seen between 1 January 2002 and 31 December 2006, at the University of Ilorin Teaching Hospital, Ilorin, Nigeria. It was a retrospective descriptive study. A total of 166 cases of gynaecological malignancies were encountered, cervical cancer was the most common (59.6%). This was followed by ovarian cancer (21.1%), trophoblastic tumour (7.8%) and corpus uteri cancer (6.0%). Others included cancer of the vulva (3.6%) and cancer of the vagina (1.8%). Squamous cell carcinoma accounted for 96.0% of cervical cancers. Epithelial tumours represented 60.0% of ovarian cancers, and serous cyst adenocarcinoma was the most common histological variety. All the vulval and vaginal cancers were of squamous cell type. In conclusion, genital malignancies are common and cervical cancer remains the leading gynaecological malignancy in this centre.
Collapse
Affiliation(s)
- H M Ibrahim
- Department of Obstetrics and Gynaecology, Federal Medical Centre, Katsina, Nigeria
| | | |
Collapse
|
18
|
Okusanya BO, Aigere EOS, Abe A, Ibrahim HM, Salawu RA. Maternal deaths: initial report of an on-going monitoring of maternal deaths at the Federal Medical Centre Katsina, Northwest Nigeria. J Matern Fetal Neonatal Med 2013; 26:885-8. [PMID: 23311885 DOI: 10.3109/14767058.2013.765851] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES To assess the maternal mortality ratio (MMR) from data collected as maternal deaths occurred over a 4-year period. METHODS A Departmental database established in 2008 was used to keep data on deliveries and maternal deaths as they occurred. The causes of death were decided after a meeting reviewed the case. Analysis was done using Microsoft Excel software and results presented in means and frequencies. RESULTS Eight thousand two hundred and twenty live deliveries that occurred were complicated by 68 maternal deaths. The MMR was 827/100 000 live births. The MMR for unbooked women was four times higher than for booked women. Obstetric haemorrhage was the main (21.6%) direct cause of death followed by preeclampsia/eclampsia (18.9%). While anaemia was the leading (8.1%) indirect cause of death, tetanus in the puerperium reared its head as an emerging (5.4%) indirect cause of maternal death. None of the women ever used contraceptives. Most deaths occurred in teenage mothers (23.5%), unbooked women (86%) and in the postpartum period (69%). CONCLUSION The MMR was high and tetanus in puerperium emerged as an indirect cause of maternal deaths. There is a need to curb the emergence of tetanus in the puerperium as a cause of maternal death.
Collapse
Affiliation(s)
- B O Okusanya
- Department of Obstetrics and Gynaecology, College of Medicine, University of Lagos, Lagos, Nigeria.
| | | | | | | | | |
Collapse
|
19
|
Ibrahim HM, Tamminga CA. Treating impaired cognition in schizophrenia. Curr Pharm Biotechnol 2012; 13:1587-94. [PMID: 22283754 DOI: 10.2174/138920112800784772] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2010] [Revised: 06/01/2011] [Accepted: 06/01/2011] [Indexed: 11/22/2022]
Abstract
Cognitive impairment is a core feature of schizophrenia that substantially accounts for poor functional outcomes associated with this disease in areas such as work, independent living and social relationships. Until recently, drug development in schizophrenia has focused on developing compounds that mainly target the positive psychotic symptoms of the illness. Although current antipsychotic drugs treat psychosis in schizophrenia rather well, their impact on cognitive dysfunction is minimal. In recent years there has been growing interest in developing novel treatments for cognitive deficits in schizophrenia. In this review we discuss pharmacologic strategies considered most likely to improve cognition. These putative molecular targets include receptors for acetylcholine, dopamine, glutamate, g-aminobutyric acid (GABA), serotonin and histamine. In addition, we propose that not only pharmacological, but also psychological treatments should be considered to enhance cognition in schizophrenia.
Collapse
Affiliation(s)
- H M Ibrahim
- Department of Psychiatry, UT Southwestern Medical Center, Dallas, TX 75390-9086, USA.
| | | |
Collapse
|
20
|
Okusanya BO, Garba KK, Ibrahim HM. The efficacy of 10gram intramuscular loading dose of MgSO(4) in severe preeclampsia/ eclampsia at a tertiary referral centre in Northwest Nigeria. Niger Postgrad Med J 2012; 19:143-148. [PMID: 23064169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
AIMS AND OBJECTIVES The efficacy of 10g intramuscular loading dose of magnesium sulphate in women with severe preeclampsia/eclampsia was assessed at a tertiary health centre for potential use at primary health level. SUBJECTS AND METHODS Intramuscular 10g loading dose and 14g loading dose of Pritchard were compared in women with severe preeclampsia/eclampsia. Primary outcome measures were the occurrence of fits in women with severe preeclampsia, further fits in those with eclampsia and maternal death. Other outcome measures were mode of delivery and severe birth asphyxia at 5 minutes of life. RESULTS One hundred and three women were enrolled; 54 and 49 women had 10g and 14g loading dose respectively. No significant convulsions (p= 0.1424) occurred in women with severe preeclampsia who had 10g intramuscular loading dose and repeat convulsion was averted in 93% of women with eclampsia. 10g loading dose did not increase the likelihood of caesarean section in women with preeclampsia (p=0.2832) or eclampsia (p=0.9112). The mean Apgar score at 5 minutes of life of neonates whose mothers had 10g and 14g loading dose for preeclampsia was 8 and 8.46 respectively, and 8.9 and 8.8 respectively for eclampsia. There was no statistically significant difference in maternal death between the two groups for severe preeclampsia (p= 0.2020) and eclampsia (p=0.3496). CONCLUSION This study suggests a potential use of intramuscular 10 gram loading dose of MgSO at the primary health care level in Nigeria.
Collapse
Affiliation(s)
- B O Okusanya
- Department of Obstetrics and Gynaecology, Federal Medical Centre Katsina
| | | | | |
Collapse
|
21
|
Okusanya BO, Garba KD, Ibrahim HM. The efficacy of intramuscular loading dose of MgSO4 in severe pre-eclampsia/ eclampsia at a tertiary referral centre in Northwest Nigeria. Niger Postgrad Med J 2012; 19:77-82. [PMID: 22728971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
AIMS AND OBJECTIVES The efficacy of 10g intramuscular loading dose of magnesium sulphate in women with severe preeclampsia/eclampsia was assessed at a tertiary health centre for potential use at primary health level. SUBJECTS AND METHODS Intramuscular 10g loading dose and 14g loading dose of Pritchard were compared in women with severe preeclampsia/eclampsia. Primary outcome measures were the occurrence of fits in women with severe preeclampsia, further fits in those with eclampsia and maternal death. Other outcome measures were mode of delivery and severe birth asphyxia at 5 minutes of life. RESULTS One hundred and three women were enrolled; 54 and 49 women had 10g and 14g loading dose respectively. No significant convulsions (p= 0.1424) occurred in women with severe preeclampsia who had 10g intramuscular loading dose and repeat convulsion was averted in 93% of women with eclampsia. 10g loading dose did not increase the likelihood of caesarean section in women with preeclampsia (p=0.2832) or eclampsia (p=0.9112). The mean Apgar score at 5 minutes of life of neonates whose mothers had 10g and 14g loading dose for preeclampsia was 8 and 8.46 respectively, and 8.9 and 8.8 respectively for eclampsia. There was no statistically significant difference in maternal death between the two groups for severe preeclampsia (p= 0.2020) and eclampsia (p=0.3496). CONCLUSION This study suggests a potential use of intramuscular 10 gram loading dose of MgSO4 at the primary health care level in Nigeria.
Collapse
Affiliation(s)
- B O Okusanya
- Department of Obstetrics and Gynaecology, Federal Medical Centre Katsina Nigeria.
| | | | | |
Collapse
|
22
|
Taye A, El-Moselhy MA, Hassan MKA, Ibrahim HM, Mohammed AF. Hepatoprotective effect of pentoxifylline against D-galactosamine-induced hepatotoxicity in rats. Ann Hepatol 2010; 8:364-70. [PMID: 20009137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The present study was conducted to investigate effect of pentoxifylline (PTX) on acute liver injury caused by galactosamine (D-Gal) in rats and the underlying mechanism involved in this setting. Moreover, we attempted to compare its effect to the well-established hepatoprotective agent, silymarin (SYM). The rats were randomly assigned 5 groups, control, PTX-treated (100 mg/kg, 3 weeks), SYM-treated (100 mg/kg, 3 weeks) and their combination. Hepatic injury was induced by intraperitoneal single dose injection of D-Gal (800 mg/kg). Hepatic functions parameters, including serum albumin and alkaline phosphatase (ALP) levels were determined. Antioxidants enzyme activities such as superoxide dismutase (SOD), catalase (CAT) as well as lipid peroxides and hepatic total nitrites were measured. Besides, histopathological examination was also performed using portions of liver tissues. Results showed that the liver injury induced by D-Gal was improved in the three pretreated groups to variable extents. Pretreatment with PTX prevented D-Gal-induced reduction of antioxidant enzyme activities, SOD and CAT, and attenuated the elevated malonaldahyde (MDA) level in hepatic tissue as marker of lipid peroxidation. In addition, pretreatment with PTX resulted in an increase in hepatic triglycerides, normalization of nitric oxide level, and lowering serum ALP activity as well as inhibited the decreased serum albumin level caused by D-Gal. These biochemical changes were reflected on attenuation the structural alterations of the liver integrity. Collectively, our data suggest that PTX exhibits a potential hepatoprotective effect against D-Gal-induced hepatotoxicity and this effect might be attributed to its antioxidant properties.
Collapse
Affiliation(s)
- Ashraf Taye
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Minia University, Egypt.
| | | | | | | | | |
Collapse
|
23
|
Trivedi MH, Rush AJ, Ibrahim HM, Carmody TJ, Biggs MM, Suppes T, Crismon ML, Shores-Wilson K, Toprac MG, Dennehy EB, Witte B, Kashner TM. The Inventory of Depressive Symptomatology, Clinician Rating (IDS-C) and Self-Report (IDS-SR), and the Quick Inventory of Depressive Symptomatology, Clinician Rating (QIDS-C) and Self-Report (QIDS-SR) in public sector patients with mood disorders: a psychometric evaluation. Psychol Med 2004; 34:73-82. [PMID: 14971628 DOI: 10.1017/s0033291703001107] [Citation(s) in RCA: 689] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND The present study provides additional data on the psychometric properties of the 30-item Inventory of Depressive Symptomatology (IDS) and of the recently developed Quick Inventory of Depressive Symptomatology (QIDS), a brief 16-item symptom severity rating scale that was derived from the longer form. Both the IDS and QIDS are available in matched clinician-rated (IDS-C30; QIDS-C16) and self-report (IDS-SR30; QIDS-SR16) formats. METHOD The patient samples included 544 out-patients with major depressive disorder (MDD) and 402 out-patients with bipolar disorder (BD) drawn from 19 regionally and ethnicically diverse clinics as part of the Texas Medication Algorithm Project (TMAP). Psychometric analyses including sensitivity to change with treatment were conducted. RESULTS Internal consistencies (Cronbach's alpha) ranged from 0.81 to 0.94 for all four scales (QIDS-C16, QIDS-SR16, IDS-C30 and IDS-SR30) in both MDD and BD patients. Sad mood, involvement, energy, concentration and self-outlook had the highest item-total correlations among patients with MDD and BD across all four scales. QIDS-SR16 and IDS-SR30 total scores were highly correlated among patients with MDD at exit (c = 0.83). QIDS-C16 and IDS-C30 total scores were also highly correlated among patients with MDD (c = 0.82) and patients with BD (c = 0.81). The IDS-SR30, IDS-C30, QIDS-SR16, and QIDS-C16 were equivalently sensitive to symptom change, indicating high concurrent validity for all four scales. High concurrent validity was also documented based on the SF-12 Mental Health Summary score for the population divided in quintiles based on their IDS or QIDS score. CONCLUSION The QIDS-SR16 and QIDS-C16, as well as the longer 30-item versions, have highly acceptable psychometric properties and are treatment sensitive measures of symptom severity in depression.
Collapse
Affiliation(s)
- M H Trivedi
- Department of Psychiatry and Academic Computing Services, University of Texas, Southwestern Medical Center at Dallas 75235, USA
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Abstract
Usually the curing period of meat used for pastrami manufacture is three weeks at room temperature. In the present work a trial aimed to accelerate the curing period of pastrami (dry cured meat) prepared from buffalo lean round muscles by heat treatment (approximately 71 degrees C--internal; for partial drying) was carried out to investigate the probable changes during processing and in quality parameters of the end product. Results showed that pH value and the residual NaNO2 content decreased, while lactic acid and conversion in meat pigment percentages were increased. The determined data indicated remarkable decrease of moisture content during aging and curing periods, while the NaCl content in the investigated product was noticeably increased. During pastrami processing soluble proteins were decreased; the sarcoplasmic protein fraction denatured more rapidly than myofibrillar protein. On the other hand, the non-protein nitrogen and the insoluble protein nitrogen were increased gradually during ageing and after the heat treatment step. Slight variations in their values were observed during ripening of pastrami (complete curing and drying in air at room temperature up to 6 days). Heat treatment caused apparent decrease in Aerobic Plate Count (APC). Salmonella and Coliform bacteria were not detected through meat curing and in the end product. The suggested heat-treated pastrami was of good quality and nearly similar to the traditional sample.
Collapse
Affiliation(s)
- H M Ibrahim
- National Research Centre, Food Technology and Dairy Department, Tahrir Street, ET-Dokki, Cairo, Egypt
| |
Collapse
|
25
|
Ibrahim HM, Hogg AJ, Healy DJ, Haroutunian V, Davis KL, Meador-Woodruff JH. Ionotropic glutamate receptor binding and subunit mRNA expression in thalamic nuclei in schizophrenia. Am J Psychiatry 2000; 157:1811-23. [PMID: 11058479 DOI: 10.1176/appi.ajp.157.11.1811] [Citation(s) in RCA: 178] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Both thalamic and glutamatergic dysfunction have been implicated in the pathophysiology of schizophrenia. The authors examined ionotropic glutamate receptor expression in postmortem samples from patients with schizophrenia and comparison subjects, using the hypothesis that glutamate receptor expression differs in limbic nuclei of the thalamus in schizophrenia. METHOD N-Methyl-D-aspartate (NMDA), AMPA, and kainate receptor expression was determined in six thalamic nuclei from 12 subjects with DSM-III-R diagnoses of schizophrenia and eight psychiatrically normal individuals. The authors used in situ hybridization to determine NMDAR1, NMDAR2A-NMDAR2D, gluR1-gluR7, KA1, and KA2 subunit mRNA levels and receptor autoradiography to determine binding to glutamate binding sites of the three receptor subtypes and to the glycine, polyamine, and ion channel binding sites of the NMDA receptor. RESULTS Glutamate receptor expression was lower at both transcriptional (NMDAR1, NMDAR2B, NMDAR2C, gluR1, gluR3, and KA2 subunit mRNAs) and posttranscriptional ([(3)H]ifenprodil and [(3)H]MDL105,519 binding to polyamine and glycine sites of the NMDA receptor) levels in the thalamus in patients with schizophrenia than in comparison subjects, but differences were most prominent in nuclei with reciprocal projections to limbic regions. CONCLUSIONS Abnormalities in NMDA, AMPA, and kainate receptor expression in limbic thalamus are suggestive of the NMDA receptor hypoactivity hypothesis of schizophrenia and are consistent with diminished glutamatergic activity in the thalamus in schizophrenia. Alternatively, these results could suggest abnormal glutamatergic innervation in afferent and/or efferent regions, which are limbic structures that have been implicated in this illness. These results may provide a neurochemical anatomical substrate for antipsychotic therapies targeting ionotropic glutamate receptors.
Collapse
Affiliation(s)
- H M Ibrahim
- Department of Psychiatry, University of Michigan, Ann Arbor 48109-0720, USA
| | | | | | | | | | | |
Collapse
|
26
|
Abstract
OBJECTIVE To investigate the clinical effects of early versus late cord clamping in preterm infants. STUDY DESIGN A total of 32 premature infants were prospectively randomized. The following parameters were measured: Initial spun hematocrit (Hct), hemoglobin (Hgb), red blood cell (RBC) counts, frequency of blood transfusions, peak serum bilirubin, mean blood pressure (MBP), oxygen index, intraventricular hemorrhage, and significant patent ductus arteriosus (PDA). RESULTS Over the 4-week study period, the delayed cord clamping (DCC) group exhibited a decrease in the frequency of blood transfusion (p < 0.001) and also a decrease in albumin transfusions over the first 24 hours (p < 0.03). MBP in the first 4 hours was higher in the DCC group (p < 0.01), and there were statistically significant increases in Hct (21%), Hgb (23%), and RBC count (21%) compared with the early cord clamping group. The risks of patent ductus arteriosus, hyperbilirubinemia, or intraventricular hemorrhage were similar in both groups. Late clamping of the umbilical cord had little or no effect on the oxygen index. CONCLUSION DCC significantly reduced the requirement for blood and albumin transfusion. It also increased the initial Hct, RBC count, Hgb levels, and MBP.
Collapse
Affiliation(s)
- H M Ibrahim
- Division of Neonatology, Louisiana State University Medical Center, Sbreveport 71130-3932, USA
| | | | | | | |
Collapse
|
27
|
Ibrahim HM, Healy DJ, Hogg AJ, Meador-Woodruff JH. Nucleus-specific expression of ionotropic glutamate receptor subunit mRNAs and binding sites in primate thalamus. Brain Res Mol Brain Res 2000; 79:1-17. [PMID: 10925139 DOI: 10.1016/s0169-328x(00)00072-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Thalamic afferents and efferents utilize glutamate as their primary neurotransmitter. There are four families of glutamate receptors that can transduce this activity, as well as regulate glutamate release from thalamic relay neurons. The three ionotropic subtypes are of particular importance, because subunit composition confers variability in functional properties of each subtype. We have quantified the expression of NMDA, AMPA and kainate receptors in the thalamus of the macaque using receptor autoradiography and in situ hybridization. NMDA receptors are multimeric associations of NR1 and NR2A-NR2D subunits that form ligand-gated ion channels. Particular subunits are associated with modulatory binding sites that affect receptor activity. NR1 was the most abundant subunit mRNA; NR2A, NR2B, and NR2D subunit mRNAs were also present, but were expressed in nucleus-specific patterns. Very high levels of [3H]ifenprodil binding to the polyamine site of the NMDA complex were detected in a fairly homogeneous distribution. Binding of the ion channel ligand [3H]MK-801 was also abundant, and limbic nuclei expressed higher levels than motor nuclei or the reticular nucleus. [3H]CGP39653 binding to the glutamate site of the NMDA receptor was the least abundant of the NMDA receptor binding sites. There was variability in the stoichiometric relationships of binding sites across nuclei, suggesting that there is heterogeneity in the pharmacological properties of NMDA receptors expressed in the thalamus. AMPA and kainate are also multimeric associations of specific subunits that form ligand-gated ion channels. These subunits are encoded by specific genes: gluR1-gluR4 for AMPA receptors, and gluR5-gluR7 and KA1-KA2 for kainate receptors. GluR4 and gluR6 mRNAs were, respectively the most abundant of the AMPA and kainate receptor subunit transcripts. Both AMPA and kainate receptor subunit transcripts were expressed in a nucleus-specific pattern. The binding of [3H]kainate was higher than that of [3H]AMPA throughout the thalamus, but AMPA subunit mRNA levels were three to five orders of magnitude higher than those encoding the kainate receptor subunits. The mismatch between the levels of expression of kainate receptor subunit transcripts and binding sites is suggestive of a presynaptic localization of kainate receptors on thalamic afferents. These results suggest that ionotropic glutamate receptors are heterogeneously expressed in the thalamus of the primate, and that their differential expression is both subunit- and nucleus-specific.
Collapse
Affiliation(s)
- H M Ibrahim
- Mental Health Research Institute and Department of Psychiatry, University of Michigan, 48109, Ann Arbor 48109, USA
| | | | | | | |
Collapse
|
28
|
Mansour N, Yassien N, Ibrahim HM, Elmossalami MK. Microbial hazard of salted OM El-Kholoul (wedge shell Donax trunculus). Zentralbl Veterinarmed B 1998; 45:53-7. [PMID: 9529997 DOI: 10.1111/j.1439-0450.1998.tb00766.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Sixty samples of salted OM El-Kholoul were collected from different localities in Giza, Alexandria and Ismailia. The samples were examined organoleptically and bacteriological examination of samples were performed for enumeration of aerobic, Enterobacteriaceae, Staph. aureus, Enterococci counts as well as isolation and identification of Vibrio parahaemolyticus. The mean counts/gm of aerobes, Enterobacteriaceae, Staph. aureus, Strept. faecalis and Strept. faecum were 4.9 x 10(5), 4.8 x 10(4), 1.9 x 10(5), 1.5 x 10(5) and 8 x 10(2), respectively. V. parahaemolyticus was isolated from all examined samples. Moreover, the weight, pH and sodium chloride percentage of ten samples were estimated. Trial was done to investigate the inhibitory effect of lemon juice (Citrus aurantifolia) on the microbial load of Om El-Kholoul, where the inhibitory effect of this juice was noticed. The public health significance of isolated microorganisms was discussed, moreover the suggestive measures for improvement of the microbial quality of the product were mentioned.
Collapse
Affiliation(s)
- N Mansour
- Department of Food Hygiene, Faculty of Veterinary Medicine, Cairo University
| | | | | | | |
Collapse
|
29
|
Sallee FR, Katikaneni LP, McArthur PD, Ibrahim HM, Nesbitt L, Sethuraman G. Head growth in cocaine-exposed infants: relationship to neonate hair level. J Dev Behav Pediatr 1995; 16:77-81. [PMID: 7790518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Intrauterine brain growth retardation is the most common brain abnormality in infants of cocaine-abusing mothers. We report a cross-sectional study of "at-risk" pregnancies with 34 infants born to mothers urine positive for cocaine at delivery compared to 33 infants born to urine-negative mothers from the same clinic. Degree of cocaine exposure was assessed by radioimmunoassay of combined cocaine and benzoylecgonine (BE) levels in neonatal hair samples. Twenty-eight neonates were hair-positive for BE (mean 2507.40 +/- 1248.88 ng/g hair; range 716 to 5440 ng/g) and differed significantly from the control infants (n = 33) in head circumference and head growth percentiles. A negative correlation approaching significance was found between mean BE and head circumference (r = -.36; p < .06) in the group of newborns with hair positive for BE (n = 28). The study demonstrates for the first time head growth abnormalities in association with levels of cocaine exposure.
Collapse
Affiliation(s)
- F R Sallee
- Center for Drug and Alcohol Programs, Medical University of South Carolina, Charleston 29425, USA
| | | | | | | | | | | |
Collapse
|
30
|
Ibrahim HM, Awang IP, Alexander DJ, Manvell RJ, Aini I, Ibrahim AL. Isolations of influenza A viruses from passerine birds in Malaysia. Vet Rec 1990; 127:528. [PMID: 2281590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- H M Ibrahim
- Faculty of Veterinary Medicine and Animal Science, Universiti Pertanian Malaysia, Selangor
| | | | | | | | | | | |
Collapse
|