1.Lymphoepithelioma-like Carcinoma of the Renal Pelvis: A Case Report and Review of the Literature.
Hyein AHN ; Jongmin SIM ; Hyunsung KIM ; Kijong YI ; Hulin HAN ; Yumin CHUNG ; Abdul REHMAN ; Seung Sam PAIK
Korean Journal of Pathology 2014;48(6):458-461
No abstract available.
Kidney Pelvis*
2.Pelvic Nodular Histiocytic and Mesothelial Hyperplasia in a Patient with Endometriosis and Uterine Leiomyoma.
Yumin CHUNG ; Rehman ABDUL ; Se Min JANG ; Joong Sub CHOI ; Kiseok JANG
Journal of Pathology and Translational Medicine 2016;50(5):397-400
No abstract available.
Endometriosis*
;
Female
;
Humans
;
Hyperplasia*
;
Leiomyoma*
3.High MicroRNA-370 Expression Correlates with Tumor Progression and Poor Prognosis in Breast Cancer.
Jongmin SIM ; Hyein AHN ; Rehman ABDUL ; Hyunsung KIM ; Ki Jong YI ; Yu Min CHUNG ; Min Sung CHUNG ; Seung Sam PAIK ; Young Soo SONG ; Kiseok JANG
Journal of Breast Cancer 2015;18(4):323-328
PURPOSE: Deregulation of microRNA-370 (miR-370) has been reported in various cancers, in which it can act as either an oncogene or a tumor suppressor gene. However, the clinicopathologic significance of miR-370 expression in breast cancer has not been studied. METHODS: The expression of miR-370 was determined with quantitative real-time polymerase chain reaction in 60 formalin-fixed, paraffin-embedded primary breast cancer tissues. Additionally, the protein expression levels of previously known targets of miR-370, such as FOXM1, FOXO1, and FOXO3a, were detected using immunohistochemistry. Finally, we analyzed its correlation with target protein expression, clinicopathologic features, and clinical outcome. RESULTS: High levels of miR-370 expression correlated with lymph node metastasis (p=0.009), advanced stage (p=0.002), and frequent perineural invasion (p=0.042). Moreover, patients with high miR-370 expression had poor disease-free survival compared with the low-expression group. However, no correlation was observed between miR-370 and its target protein expression. CONCLUSION: Our results indicate that upregulation of miR-370 in breast cancer is correlated with breast cancer progression and that it might be a potential biomarker for predicting clinical outcomes.
Breast Neoplasms*
;
Breast*
;
Disease-Free Survival
;
Genes, Tumor Suppressor
;
Humans
;
Immunohistochemistry
;
Lymph Nodes
;
Neoplasm Metastasis
;
Oncogenes
;
Prognosis*
;
Real-Time Polymerase Chain Reaction
;
Up-Regulation
4.Clinicopathological Significance of Dual-Specificity Protein Phosphatase 4 Expression in Invasive Ductal Carcinoma of the Breast.
Hyunsung KIM ; Se Min JANG ; Hyein AHN ; Jongmin SIM ; Kijong YI ; Yumin CHUNG ; Hulin HAN ; Abdul REHMAN ; Min Sung CHUNG ; Kiseok JANG ; Seung Sam PAIK
Journal of Breast Cancer 2015;18(1):1-7
PURPOSE: Dual-specificity protein phosphatase 4 (DUSP4), also known as mitogen-activated protein kinase phosphatase (MKP) 2 is a member of the inducible nuclear MKP group. The role of DUSP4 in cancer development and progression appears to vary with the type of malignancy. The purpose of this study was to investigate DUSP4 expression in a case series of invasive ductal carcinoma of the breast. METHODS: We constructed tissue microarrays consisting of 16, 14, 47, and 266 cases of normal breast tissue, usual ductal hyperplasia, ductal carcinoma in situ, and invasive ductal carcinoma, respectively. DUSP4 expression was investigated by immunohistochemistry. RESULTS: Cytoplasmic DUSP4 expression was observed. DUSP4 was more frequently expressed in malignant than in benign cases (p=0.024). The mean DUSP4 expression score was significantly higher in malignant tumors than in benign lesions (p=0.019). DUSP4 expression was significantly correlated with a larger tumor size (>2 cm, p=0.015). There was no significant correlation between overall survival or disease-free survival and DUSP4 expression in all 266 patients. We evaluated the impact of DUSP4 expression on the survival of 120 patients with T1-stage tumors. Interestingly, Kaplan-Meier survival curves revealed that DUSP4 expression had a significant effect on both overall patient survival (p=0.034, log-rank test) and disease-free survival (p=0.045, log-rank test). In early T-stage breast cancer, DUSP4 expression was associated with a worse prognosis. CONCLUSION: DUSP4 is frequently upregulated in breast malignancy, and may play an important role in cancer development and progression. In addition, it may be a marker of adverse prognosis, especially in patients with early T1-stage cancer.
Breast Neoplasms
;
Breast*
;
Carcinoma, Ductal*
;
Carcinoma, Intraductal, Noninfiltrating
;
Cytoplasm
;
Disease-Free Survival
;
Humans
;
Hyperplasia
;
Immunohistochemistry
;
Kaplan-Meier Estimate
;
Prognosis
;
Protein Kinases
5.Increased Expression of Forkhead Box M1 Is Associated with Aggressive Phenotype and Poor Prognosis in Estrogen Receptor-Positive Breast Cancer.
Hyein AHN ; Jongmin SIM ; Rehman ABDUL ; Min Sung CHUNG ; Seung Sam PAIK ; Young Ha OH ; Chan Kum PARK ; Kiseok JANG
Journal of Korean Medical Science 2015;30(4):390-397
Fox transcription factors play a critical role in the regulation of a variety of biological processes. While FoxM1 behaves like the oncogenic transcription factor, FoxO3a is known as a tumor suppressor by inhibiting FoxM1. This study aimed to investigate the clinicopathological significance of FoxM1 and FoxO3a expression in breast cancer. Expression of FoxM1 and FoxO3a were analyzed by immunohistochemical staining on tissue microarray sections from 236 breast cancer patients, and correlated with various clinicopathological characteristics. Overexpression of FoxM1 correlated with adverse clinicopathological features, such as larger tumor size, lymph node metastasis, advanced tumor stage, and lymphovascular invasion. The Kaplan-Meier survival curves revealed no prognostic significance of FoxM1 expression. However, in subgroup analyses with patients of estrogen receptor (ER) positive breast cancers, FoxM1 overexpression associated with poor disease free and overall survival. No association was found between FoxO3a and FoxM1 expression. Regarding clinicopathological variables, the only association between histologic grade and FoxO3a was observed. In conclusion, FoxM1 overexpression was significantly associated with aggressive phenotypes and poor prognosis of ER-positive breast cancer. These findings suggest the possible role of FoxM1 as a prognostic biomarker and putative target of anti-cancer therapy.
Breast Neoplasms/chemistry/mortality/*pathology
;
Female
;
Forkhead Transcription Factors/*analysis
;
Humans
;
Phenotype
;
Prognosis
;
Receptor, ErbB-2/analysis
;
Receptors, Estrogen/*analysis
6.Bacterial Spectrum and Antimicrobial Profile of Pediatric Blood Stream Infection at a Tertiary Care Hospital in Pakistan.
Anees MUHAMMAD ; Sadiq NOOR KHAN ; Tahir JAMAL ; Irshad UL HAQ ; Abdul JABBAR ; Ihsan ALI
Chinese Medical Sciences Journal 2020;35(4):315-322
Objectives Blood stream infections (BSIs) are the main cause of morbidity and mortality in children worldwide. The present study was carried out to determine the prevalence of BSI with a focus on the identification of the causative agent of BSI, and to further evaluate the antibiotic susceptibility profile of the causing bacterial pathogens.Methods A cross-section study was carried out at the tertiary care hospital in Peshawar, Pakistan from January to December, 2018. Blood samples were collected in BACTEC
7.Assessment of antibacterial activity of Syzygium aromaticum extracts, antibiotics and silver sulphadiazine ointment against pathogenic bacteria isolated from the burned and unburned skin
Iffat Naz ; Afsheen Fatima ; Saleh S. Alhewairini ; Abdul Rehman
Malaysian Journal of Microbiology 2021;17(4):380-389
Aims:
Skin burns remain a noteworthy general medical issue throughout the world, as it boosts a condition of immuno-suppression. The present research aimed to evaluate the efficacy of Syzygium aromaticum extracts, silver sulphadiazine
ointment, and different commercially available topical antibiotics against pathogenic bacteria, isolated from the skin of
burn patients.
Methodology and results:
A total of 124 clinical pus samples were collected from the skin of burn patients, admitted to
two different tertiary care burn units at Peshawar, Pakistan. From these pus samples, 6 bacterial isolates from burned
skin (Staphylococcus epidermidis, Streptococcus, Klebsiella, Enterobacter, Bacillus and Pseudomonas spp.) were
isolated, while 4 different bacterial isolates (Staphylococcus epidermidis, Staphylococcus aureus, Bacillus and
Streptococcus spp.) were isolated from unburned skin via conventional culturing techniques. Further, antibacterial
assays were performed to compare the efficacy of S. aromaticum extracts (methanolic and aqueous extract), silver
sulphadiazine ointment, and different commercially available antibiotics against tested bacteria. It was observed that
both methanolic and aqueous extracts of S. aromaticum were effective at all concentrations against all the tested
bacteria. In addition, all the tested antibiotics expressed substantial activity against most of the bacterial isolates. While
silver sulphadiazine ointment was observed to be less potent against isolated bacteria as compared to S. aromaticum
extracts.
Conclusion, significance and impact of study
It was concluded that both aqueous and methanolic extracts of S.
aromaticum were effective antimicrobial agents and could be used as an alternative to control bacterial infections of burn
patients. This study would help to distinguish the risk factors of bacterial pathogenicity in burn patients and would also
provide a guideline to utilize medicinal plants and their extracts to minimize the chances of antibiotic resistance
phenomenon in burn patients.
Anti-Bacterial Agents
;
Cell Membrane
;
Oxidative Stress
;
Permeability
;
Plant Extracts
;
Syzygium
8. Insecticide susceptibility in larval populations of the West Nile vector Culex pipiens L. (Diptera: Culicidae) in Saudi Arabia
Al Thabiani AZIZ ; Hasibur REHMAN ; Shalini SAGGU ; Chellasamy PANNEERSELVAM ; Jazem Abdullah MAHYOUB ; Majed Salum S. ALREFAEI ; Kadarkarai MURUGAN ; Marcello NICOLETTI ; Hui WEI ; Angelo CANALE ; Giovanni BENELLI
Asian Pacific Journal of Tropical Biomedicine 2016;6(5):390-395
Objective: To investigate the susceptibility to some conventional and non-conventional insecticides in laboratory and field larval populations of the West Nile vector Culex pipiens L. (Cx. pipiens), the dominant species in Jeddah Province, Saudi Arabia. Methods: The tested conventional insecticides were Actikil and Pesgard, while the non-conventional ones were Bacilod, Dudim and Baycidal. Probit analysis and photomicroscopical observations were carried out to shed light on acute toxicity in laboratory and field Cx. pipiens strains. Results: Cx. pipiens were more susceptible to Pesgard (LC
9. Nutritional assessment and antioxidant analysis of 22 date palm (Phoenix dactylifera) varieties growing in Sultanate of Oman
Ahmad AL-HARRASI ; Najeeb Ur REHMAN ; Javid HUSSAIN ; Abdul Latif KHAN ; Ahmed AL-RAWAHI ; Syed Abdullah GILANI ; Mohammed AL-BROUMI ; Liaqat ALI
Asian Pacific Journal of Tropical Medicine 2014;7(S1):S591-S598
Objective: To assess the nutritional values and antioxidant analysis of 22 varieties of date palm (Phoenix dactylifera) fruit collected from various regions of the Sultanate of Oman. Methods: Nutritional parameters including moisture, fats, fiber, proteins, carbohydrates, and energy value were determined using standard methods of Association of Official Analytical Chemists. The antioxidant activity was screened for their free radical scavenging properties using ascorbic acid as a standard antioxidant. Free radical scavenging activity was evaluated using 1,1-diphenyl-2-picrylhydrazyl free radical. Results: The results of the date fruits (dried/tamar stage) revealed significantly higher moisture (15%-21%), dry matter (78%-86%), ash content (1.0%-2.0%), fiber (1.0%-2.5%), fat (0.1%-0.7%), protein (1.8%-3.8%), nitrogen (0.25%-0.55%), carbohydrates (74.5%-82.4%), and energy values (307-345.5 kcal/100 g). The antioxidant activity ranged between 40% and 86% depending upon the type of date and location. Overall, Khalas, Fardh and Khasab have significantly higher nutritional attributes; however, other varieties such as Barshi, Qush LuLu, Handal, and Khunaizi also have comparable nutritional values. The cluster analysis further evidenced the correlation of proximate parameters in different locations. Moreover, the nutritional and antioxidant attributes of similar date varieties collected from different locations were slightly varied. Conclusions: The present finding helps in understanding the nutritional significance of different date varieties in Oman while the lesser known varieties can be improved through sustainable horticultural practices as a valuable product. The study further reveals that the consumption of these dates' fruits would exert several beneficial effects by virtue of their antioxidant activity.
10.Phytochemical composition, biological potential and enzyme inhibition activity of Scandix pecten-veneris L.
Abdul WAHAB ; Syed Aleem JAN ; Abdur RAUF ; Zia Ur REHMAN ; Zahid KHAN ; Aftab AHMED ; Fatima SYED ; Sher Zaman SAFI ; Hamayun KHAN ; Muhammad IMRAN
Journal of Zhejiang University. Science. B 2018;19(2):120-129
OBJECTIVE:
Scandix pecten-veneris L. is a less studied wild edible herb and is considered an extinct plant species in many parts of the world. This study was designed to evaluate its phytochemical composition and biological potential of S. pecten-veneris L.
METHODS:
Phytochemicals including alkaloids, flavonoids, polyphenols, and tannins were determined in extracts of S. pecten-veneris. Antioxidant activity was determined using 2,2-diphenyl-1-picrylhydrazyl (DPPH), while reducing power was tested by ferric reducing/antioxidant power (FRAP) assay. Antimicrobial activity against seven bacterial and four fungal strains was evaluated using agar well diffusion assay. Enzymes inhibition study was performed for urease, phosphodiesterase-I, and catalase-II.
RESULTS:
S. pecten-veneris showed moderate antiradical activity and reducing potential of hydroxyl radicals to about 20% of the initial value. The antioxidant activity of various extracts of S. pecten-veneris showed a linear correlation with total phenolic contents in the order of water>n-butanol>chloroform>ethyl acetate>methanol extracts. S. pecten-veneris leaves showed the highest inhibitory activity against Staphylococcus aureus while the highest antifungal activity was observed against Candida albicans. The plant extract was most potent against urease enzymes but showed moderate activity against phosphodiestrase-I and carbonic anhydrase-II.
CONCLUSIONS
Our data demonstrate that in addition to its culinary uses, S. pecten-veneris has good medicinal potential and hence could be used for treating some specific health ailments.
Animals
;
Anti-Infective Agents/pharmacology*
;
Antioxidants/pharmacology*
;
Apiaceae/chemistry*
;
Enzyme Inhibitors/pharmacology*
;
Phosphodiesterase Inhibitors/pharmacology*
;
Phytochemicals/analysis*
;
Plant Extracts/pharmacology*
;
Plants, Edible/chemistry*
;
Staphylococcus aureus/drug effects*
;
Urease/antagonists & inhibitors*