essameldin_nada

Essameldin Abdelaziz Mohamed Ahmed Nada

Professor - Prof. of Dermatology,Venereology and Andrology

Faculty of medicine

Address: 8 Abou Bakr ElSedik Dokki Giza

3

Like

Publications Which contain the keyword: Immunohistochemistry


2018-09-24 00:59:16 Keywords 25(OH)D3, acne, ELISA, Immunohistochemistry, IL‐17, Western blot,
Lesional and circulating levels of interleukin‐17 and 25‐ hydroxycholecalciferol  in active acne vulgaris: Correlation to disease  severity
OBJECTIVES: The immunological aspects of inflammatory acne are still incompletely understood, so this study aimed to investigate the possible role of IL‐17 and 25 hydroxycholecalciferol (25(OH)D3) in the disease pathogenesis and progression. MATERIALS AND METHODS: Across‐sectional study has been conducted on 135 patients with active acne vulgaris of various severities and 150 matched controls. ELISA assays of serum and tissue ... Read more

Immunohistochemical Study To Evaluate the Expression Of DSC-2, COX-2, and CK-14in Urothelial Carcinoma and Squamous Cell Carcinoma of the Urinary Bladder
The purpose of this study was to identify sites of squamous differentaion in urothelial carcinoma of the urinary bladder, to differntaite between urothelial carcinoma and squmaous cell carcinoma of the urinary baldder specially those poorly differntiated forms using DSC-2, COX-2 and CK-14 and to corelate these markers with avilalable clinical and histological parameters in urinary bladder Read more

2018-10-22 20:09:15 Keywords cholesteatoma, staging, Immunohistochemistry, cancer,
SOM CLEFT Scoring/Staging System for Tympanomastoid Cholesteatoma
_OBJECTIVES_: To adopt a newly designed scoring/staging system for of tympanomastoid cholesteatoma similar to cancer staging protocols. _METHODS_: Our system relied on clinical, CT findings, and confirmed with intraoperative findings. All bony items that could be affected by cholesteatoma were scored, including: scutum (S), ossicles (O), mastoid (M), posterior canal wall (C), lateral sinus plate (L), inner ear (E), facial ... Read more

2018-10-22 19:59:20 Keywords cholesteatoma, Acquired, cytokeratin, Immunohistochemistry,
Cytokeratin expression pattern in acquired cholesteatoma versus meatal skin; an immunochemical study.
Cholesteatoma is a proliferative disease of the middle ear with bone resorption activity. Its pathogenesis remains controversial and has yet to be clarified. Cytokeratins represent a well-known epithelial proliferative and differentiation markers. In the current study, we investigated expression of a large set of cytokeratins in cholesteatoma matrix versus deep meatal skin tissues from the same patients. Methodology: An immunohistochemical ... Read more

Dietary protein restriction inhibits the development of ovarian cancer
_Objective__:_ To investigate the effect of dietary protein quality on ovarian cancer growth and its synergism with an anticancer drug, using murine ovarian cancer models. _Method__:_ We first established four groups of mice, which were fed 20% or 10% animal protein or plant protein, respectively. We injected an ovarian cancer cell line (HM-1) subcutaneously and intraperitoneally into immunocompetent B6C3F1 mice ... Read more

Localization and Regulation of Aquaporins in the Murine Larynx
Conclusion: Expression of AQPs in the vocal folds and the parasympathetic regulation of AQPs in the laryngeal glands may be important for controlling laryngeal secretion and vocal fold hydration. These findings are thought to be an initial step towards understanding potential mechanisms of water flow through the vocal fold surface. Objectives: Lubrication of the vocal folds is important for phonation ... Read more

Immunohistological Study Of KI-67 (MIB-1) Antigen Expression In Superficial Bladder Carcinoma
ABSTRACT Superficial bladder carcinoma particularly grade 2 is a heterogeneous widespread group comprising both non- invasive (pTa) and invasive (pTI) tumors. Therefore, the study of its proliferative activity by immunohistochemical detection of Ki-67 antigen is necessary to highlight the biologic behavior of such lesion. This study was performed on sixty (60) retrospective cases of primary superficial bladder carcinomas (pTa and ... Read more

2018-09-29 08:27:06 Keywords Osteocalcin, Osteosarcoma, Osteoblastoma, Immunohistochemistry,
Role of immunohistochemical cyclo-oxygenase-2 (COX-2) and osteocalcin in differentiating between osteoblastomas and osteosarcomas
Background/Aims: Differential diagnosis between aggressive osteoblastoma and low grade osteosarcoma may be very diffi cult or even impossible on a small biopsy. This study was designed to assess the usefulness of immunoexpression of COX-2 and osteocalcin in the differential diagnosis of the two tumour types. Methods: Immunostaining of COX 2 and osteocalcin were studied in 9 osteoblastomas and 30 osteosarcomas. ... Read more

Immunohistochemical Analysis of the Immune Cells in Bilharzial Granuloma of the Urinary Bladder
ABSTRACT BACKGROUND: URINARY BILHARZIASIS REPRESENT A MAJOR HEALTH PROBLEM IN EGYPT. IT IS CHARACTRARIZED BY THE FORMATION OF LOCALIZED COLLECTION OF IMMUNE CELLS I.E. GRANULOMAS. IN THIS INVESTIGATION, WE HYPOTHESIZED THAT THE EVOLUTION OF THE BILHARZIAL GRANULOMA IS ASSOCIATED WITH RECRUITMENT OF IMMUNE CELLS OF DIVERSE CELL LINEAGE. TO EXPLORE THIS HYPOTHESIS AND TO FILL THIS EXISTING GAP IN THE ... Read more

2018-09-08 12:16:32 Keywords 2007, Tuberculous Granuloma, Peritonium, iNOS, Immunohistochemistry,
Immunohistochemical Study of iNOS in Peritoneal Tuberculous Granuloma
ABSTRACT BACKGROUND: The human tuberculous granuloma provides the morphological basis for local immune processes central to the outcome of tuberculosis. Nitric Oxide (NO), produced by the inducible nitric oxide synthase (iNOS), is important in host defense against Mycobacterium tuberculosis in rodents, but the presence of high-output NO production in human tuberculosis has been controversial. Because of the scarcity of information ... Read more