All Articles

Mechanisms Associated with Acquisition of Resistance to Butyrate-Induced Apoptosis in Colorectal Cancer Cells Using Gene Expression Analysis

Abstract:

Colorectal cancer is one of the most commonly diagnosed cancers worldwide and its prevalence can be reduced by changes to lifestyle and diet. Fermentation of dietary fibre by the gut microbiota and formation of short chain fatty acids, in particular butyrate, is widely thought to play a role in preventing development of the disease. Despite butyrate’s known pro-apoptotic effects, a subpopulation of cancer cells is able to overcome these anti-neoplastic effects of colonic luminal butyrate to proliferate and establish tumours in vivo. In this study, a time course analysis of HT29 and HT29-BR cells treated with butyrate was conducted and global gene expression analysis was used to identify novel mechanisms associated with butyrate-induced apoptosis and in the acquisition of butyrate resistance. Bioinformatic analysis of the data identified deregulated O-GlcNAcylation activity and disruption to gene transcription by BRD4 as possible factors involved with butyrate-in...

Influence of Education Sources on Osteoporosis Knowledge and Calcium Intake in Adult Women: A cross sectional Study

Abstract:

Osteoporosis prevention among women requires obtaining proper knowledge early in life about the disease, risk factors and treatments. This study compares specific education sources to osteoporosis knowledge and calcium intake. Online survey usinga convenience sampling was performed with women between ages 18 and 40. The survey measured osteoporosis knowledge, calcium consumption, and specific education source within categories of age, school classes, television, radio, newspaper, magazine, Internet, and in-person. Multiple regression analysis determined influential education sources for osteoporosis knowledge and calcium intakes. Osteoporosis knowledge was suboptimal (13.8 ± 3.3, as a score higher than 16 defined as “adequate”) and average daily calcium intake was 1315.1 ± 609.9 mg. Age and newspaper had greatest contribution towards osteoporosis knowledge, while Internet, school classes and radio were most influential resources on calcium intake...

High Prevalence of Obesity in a Saudi Community K.Aljabri, MD, FRCPC, S. Bokhari, MD.  A Cross Section, Single Centre Study

Abstract:

Obesity is a major public health problem worldwide. We designed this study to determine the prevalence of obesity among Saudis in the department of primary care at King Fahad Armed Forces Hospital.

Double-Blind Randomized Trial on the Efficacy in a Short-Time Follow-Up of the “Quick Liberatory Rotation” Maneuver in Treating Posterior Canal BPPV

Abstract:

This double-blind randomized studyevaluates the efficiency of the Quick Liberatory Rotation maneuver (QLR) in solving signs and symptoms of Posterior Canal BPPV in a short time follow-up comparing the efficiency of QLR vs. a sham maneuver (“Fake QLR”).The study was performed at an input-output tertiary center for balance disorders.From January to September 2012, 200 patients with signs and symptoms of Posterior Canal BPPV respected the inclusion criteria in the study. The diagnosis was based on observation with binocular infrared videonystagmoscopy of the paroxysmal torsional and upbeat nystagmus evoked through the Dix-Hallpike test (DHT). Patients were divided in two groups, 100 in the group treated by QLR (Group 1) and 100 in the control group treated by “Fake QLR” (Group 2). Before the treatment, they self-evaluated a Visual Analogue Score on their vertiginous complaints (V-VAS). Patients were controlled one hour after the treatment by a blinded examine...

Predictors of Averse Events After Total Laryngectomy: An Analysis of the 2005-2011 NSQIP Datasets

Abstract:

We reviewed the 2005-2011 ACS-NSQIP database to evaluate factors associated with adverse events (AE) after total laryngectomy (TL).

Pleomorphic Adenoma of The Nasal Septum

Abstract:

Pleomorphic adenomas are uncommon tumors of the nasal cavity. They arise from minor salivary glands, and usually originate from the nasal septum. The tumors are more common in middle-aged females. We present a series of 8 cases of intranasal pleomorphic adenomas. Seven of these tumors originated from the nasal septum, and only one of them originated from the lateral nasal wall. Histopathologic examination of the tumors showed that these tumors have higher epithelial and lower stromal components compared to pleomorphic adenomas of major salivary glands. Endoscopic resection was performed in all cases and the patients were followed up for one year. No recurrences or complications were observed in this series. Endoscopic resection is recommended as the treatment of choice because of its proven efficacy and low morbidity.

Preparation Physico-Chemical Characterization and Catalytic applications of Polymer Anchored Dimethylglyoxime Copper (II) Metal Complex

Abstract:

Oxidation of 1-Proponol, 1-butanol 1-Hexanol and benzyl alcohol using chloromethylated polystyrene (6% Cross link) DMG (Dimethylglyoxime) copper complex or Poly(S-DVB)-DMG-M Where M= Cu) as catalyst and tert.butylhydroperoxide(TBHP) as oxidant, was studied. The polymer supported Cu Complex was characterized by some physicochemical and spectroscopic methods like elemental analysis IR Scanning electron micrographs (SEM). In the oxidation of 1-propanol, 1-butanol, 1-hexanol and benzyl alcohol. It was found that Product yield of these alcohols corresponding the order 1-Butanal >1-hexanone >Benzyldehyde > 1-Propanone. Kinetic data indicates that catalyst could be recycled without significant degradation of polymer

The Potentials of Antioxidant Micronutrients in the Management of Metabolic Syndrome

Abstract:

There is increasing evidence of the prevalence manifestations of metabolic syndrome worldwide. Metabolic syndrome is a cluster of abnormalities characterized by hypertension, central obesity, insulin resistance, endothelial dysfunction, dyslipidemia and oxidative stress. All these alterations predispose individuals to type 2 diabetes and cardiovascular disease that are major contributing factors to earlier mortality among people. The investigation of food nutrients that could reverse the features of metabolic syndrome is an important aspect for dietary-based therapies that may ameliorate the burden of the disorder. Antioxidant micronutrients are of great interest due to the recent described association between obesity, cardiovascular alterations and oxidative stress. These antioxidant nutrients are also being considered in the management of metabolic syndrome due to their potential benefits on hypertension, insulin resistance and hypertriglyceridemia since grow...

Vascular graft failure of leg arterial bypasses - a review

Abstract:

This review discusses causes of lower‑limb bypass graft failure and strategies to improve durability. It considers patient selection, conduit choice, surveillance, and re‑intervention options.

Hypertension in Hypoxia

Abstract:

An overview of blood pressure regulation in hypoxia addresses altitude physiology, sleep disordered breathing, and cardiopulmonary disease. It reviews pathophysiology and therapeutic implications.