A Rat Model of Rheumatoid Arthritis: TDZD-8 is Associated with the Protection Against the Induction of the Synovium Knee Joint IL-17A/GSK3β/ROS/α-SMA Axis of Fibrosis

SUMMARY: Rheumatoid arthritis (RA) that affects the synovial knee joint causes swelling of the synovial membrane and tissue damage. Interleukin-17A (IL-17A) and the enzyme glycogen synthase kinase-3β (GSK3β) are involved in the pathogenesis of RA. The link between IL-17A, GSK3β, the oxidative stress, and the profibrogenic marker alpha-smooth muscle actin (α-SMA) with and without TDZD-8, GSK3β inhibitor has not been studied before. Consequently, active immunization of rats was performed to induce RA after three weeks using collagen type II (COII) injections. The treated group received daily injection of 1 mg/kg TDZD-8 for 21 days following the immunization protocol (COII+TDZD-8). Blood and synovium tissue samples were harvested at the end of the experiment. RA development was confirmed as corroborated by a substantial increase in blood levels of the highly specific autoantibody for RA, anti-citrullinated protein antibody as well as augmentation of reactive oxidative species (ROS) levels measured as lipid peroxidation. RA induction also increased synovium tissue levels of IL-17A and the profibrogenic marker, α-SMA. All these parameters seemed to be significantly (p<0.0001) ameliorated by TDZD-8. Additionally, a significant correlation between IL-17A, ROS, and α-SMA and biomarkers of RA was observed. Thus, knee joint synovium RA induction augmented IL-17A/GSK3β/ROS/α-SMA axis mediated arthritis in a rat model of RA, which was inhibited by TDZD-8.

La artritis reumatoide (AR) que afecta la articulación sinovial de la rodilla provoca inflamación de la membrana sinovial y daño tisular. La interleucina-17A (IL-17A) y la enzima glucógeno sintasa quinasa-3β (GSK3β) están involucradas en la patogenia de la AR. No se ha estudiadol vínculo entre IL-17A, GSK3β, el estrés oxidativo y el marcador profibrogénico actina de músculo liso alfa (α-SMA) con y sin inhibidor de TDZD-8, GSK3β. En consecuencia, se realizó una inmunización activa de ratas para inducir la AR después de tres semanas usando inyecciones de colágeno tipo II (COII). El grupo tratado recibió una inyección diaria de 1 µg/ kg de TDZD-8 durante 21 días siguiendo el protocolo de inmunización (COII+TDZD-8). Se recogieron muestras de sangre y tejido sinovial al final del experimento. El desarrollo de AR se confirmó como lo corroboró el aumento sustancial en los niveles sanguíneos del autoanticuerpo altamente específico para AR, el anticuerpo antiproteína citrulinada, así como el aumento de los niveles de especies oxidativas reactivas (ROS) medidos como peroxidación lipídica. La inducción de AR también aumentó los niveles de tejido sinovial de IL-17A y el marcador profibrogénico, α-SMA. Todos estos parámetros parecían mejorar significativamente (p<0,0001) con TDZD-8. Además, se observó una correlación significativa entre IL- 17A, ROS y α-SMA y biomarcadores de AR. Por lo tanto, la inducción de AR en la sinovial de la articulación de la rodilla aumentó la artritis mediada por el eje IL-17A/GSK3β/ROS/α-SMA en un modelo de rata de AR, que fue inhibida por TDZD-8.

A rat model of rheumatoid arthritis: TDZD-8 is associated with the protection against the induction of the synovium knee joint IL-17A/GSK3beta/ROS/alpha-SMA axis of fibrosis / Un modelo de rata de artritis reumatoide: TDZD-8 está asociado con la protección contra la inducción del eje de fibrosis de la articulación sinovial de la rodilla IL-17A/GSK3ß/ROS/α-SMA

SUMMARY: Rheumatoid arthritis (RA) that affects the synovial knee joint causes swelling of the synovial membrane and tissue damage. Interleukin-17A (IL-17A) and the enzyme glycogen synthase kinase-3β (GSK3β) are involved in the pathogenesis of RA. The link between IL-17A, GSK3β, the oxidative stress, and the profibrogenic marker alpha-smooth muscle actin (α-SMA) with and without TDZD-8, GSK3β inhibitor has not been studied before. Consequently, active immunization of rats was performed to induce RA after three weeks using collagen type II (COII) injections. The treated group received daily injection of 1 mg/kg TDZD-8 for 21 days following the immunization protocol (COII+TDZD-8). Blood and synovium tissue samples were harvested at the end of the experiment. RA development was confirmed as corroborated by a substantial increase in blood levels of the highly specific autoantibody for RA, anti-citrullinated protein antibody as well as augmentation of reactive oxidative species (ROS) levels measured as lipid peroxidation. RA induction also increased synovium tissue levels of IL-17A and the profibrogenic marker, α-SMA. All these parameters seemed to be significantly (p<0.0001) ameliorated by TDZD-8. Additionally, a significant correlation between IL-17A, ROS, and α-SMA and biomarkers of RA was observed. Thus, knee joint synovium RA induction augmented IL-17A/GSK3β/ROS/α-SMA axis mediated arthritis in a rat model of RA, which was inhibited by TDZD-8.

La artritis reumatoide (AR) que afecta la articulación sinovial de la rodilla provoca inflamación de la membrana sinovial y daño tisular. La interleucina-17A (IL-17A) y la enzima glucógeno sintasa quinasa-3β (GSK3β) están involucradas en la patogenia de la AR. No se ha estudiadol vínculo entre IL-17A, GSK3β, el estrés oxidativo y el marcador profibrogénico actina de músculo liso alfa (α-SMA) con y sin inhibidor de TDZD-8, GSK3β. En consecuencia, se realizó una inmunización activa de ratas para inducir la AR después de tres semanas usando inyecciones de colágeno tipo II (COII). El grupo tratado recibió una inyección diaria de 1 µg/ kg de TDZD-8 durante 21 días siguiendo el protocolo de inmunización (COII+TDZD-8). Se recogieron muestras de sangre y tejido sinovial al final del experimento. El desarrollo de AR se confirmó como lo corroboró el aumento sustancial en los niveles sanguíneos del autoanticuerpo altamente específico para AR, el anticuerpo antiproteína citrulinada, así como el aumento de los niveles de especies oxidativas reactivas (ROS) medidos como peroxidación lipídica. La inducción de AR también aumentó los niveles de tejido sinovial de IL-17A y el marcador profibrogénico, α-SMA. Todos estos parámetros parecían mejorar significativamente (p<0,0001) con TDZD-8. Además, se observó una correlación significativa entre IL- 17A, ROS y α-SMA y biomarcadores de AR. Por lo tanto, la inducción de AR en la sinovial de la articulación de la rodilla aumentó la artritis mediada por el eje IL-17A/GSK3β/ROS/α-SMA en un modelo de rata de AR, que fue inhibida por TDZD-8.

Quercetin and resveratrol are associated with the downregulation of TNFalpha/NF-kB/inos axis-mediated acute liver injury in rats induced by paracetamol poisoning / La quercetina y el resveratrol están asociados con la regulación decreciente de la lesión hepática aguda mediada por el eje TNF-alfa/NF-kB/inos en ratas inducida por envenenamiento con paracetamol

SUMMARY: Paracetamol (known as acetaminophen, or APAP) poisoning causes acute liver damage that can lead to organ failure and death. We sought to determine that APAP overdose can augment tumor necrosis factor-alpha (TNF-α)/ nuclear factor kappa B (NF-kB)/induced nitic oxide synthase (iNOS) axis-mediated hepatotoxicity in rats, and the anti-inflammatory polyphenolic compounds, quercetin (QUR) plus resveratrol (RES) can ameliorate these parameters. Therefore, we induced acute hepatotoxicity in rats using APAP overdose (2 g/kg, orally) and the protective group of rats were treated with 50 mg/kg QUR plus 30 mg/kg RES for one week before APAP ingestion. Animals were killed at day 8. APAP poisoning caused the induction of hepatic tissue levels of TNF-α, NF-kB, and iNOS, which were significantly (p<0.05) decreased by QUR+RES. QUR+RES, also inhibited liver injury biomarkers, alanine aminotransferase (ALT) and aspartate aminotransferase (AST). Additionally, a link between liver injury and TNF-α /NF-kB / iNOS axis mediated hepatotoxicity was observed. Thus, the presented data backing the conclusion that intoxication by paracetamol increases TNF-α / NF-kB / iNOS axis -mediated hepatotoxicity, and is protected by a combination of quercetin and resveratrol.

El envenenamiento por paracetamol (conocido como acetaminofeno o APAP) causa daño hepático agudo que puede provocar una insuficiencia orgánica y la muerte. El objetivo de este trabajo fue determinar si la sobredosis de APAP puede aumentar la hepatotoxicidad mediada por el eje del factor de necrosis tumoral alfa (TNF-α)/factor nuclear kappa B (NF-kB)/óxido nítico sintasa inducida (iNOS) en ratas, y si el polifenólico antiinflamatorio compuesto por quercetina (QUR) más resveratrol (RES) pueden mejorar estos parámetros. Por lo tanto, inducimos hepatotoxicidad aguda en ratas usando una sobredosis de APAP (2 g/kg, por vía oral). El grupo protector de ratas se trató con 50 mg/ kg de QUR más 30 mg/kg de RES durante una semana antes de la ingestión de APAP. Los animales se sacrificaron el día 8. El envenenamiento con APAP en el tejido hepático provocó la inducción de niveles de TNF-α, NF-kB e iNOS, que se redujeron significativamente (p<0,05) con QUR+RES. QUR+RES, también inhibió los biomarcadores de daño hepático, la alanina aminotransferasa (ALT) y el aspartato aminotransferasa (AST). Además, se observó una relación entre la lesión hepática y la hepatotoxicidad mediada por el eje TNF-α /NF-kB/iNOS. Por lo tanto, los datos presentados respaldan la conclusión de que la intoxicación por paracetamol aumenta la hepatotoxicidad mediada por el eje TNF-α /NF-kB / iNOS, y está protegida por una combinación de quercetina y resveratrol.

Genetic similarities and phylogenetic analysis of Muntjac (Muntiacus spp. ) by comparing the nucleotide sequence of 16S rRNA and cytochrome B genome / Semelhanças genéticas e análise filogenética de muntjac (Muntiacus spp. ) comparando a sequência de nucleótidos de rRNA 16S e genoma citocromo B

This study aimed to identify the phylogenetic similarities among the muntjac (Muntiacus spp.). The phylogenetic similarities among seven major muntjac species were studied by comparing the nucleotide sequence of 16s rRNA and cytochrome b genome. Nucleotide sequences, retrieved from NCBI databases were aligned by using DNASTAR software. A phylogenetic tree was created for the selected species of muntjac by using the maximum likelihood method on MEGA7 software. The results of nucleotide sequences (16s rRNA) showed phylogenetic similarities between, the M. truongsonensis and M. rooseveltorum had the highest (99.2%) while the lowest similarities (96.8%) found between M. crinifrons and M. putaoensi. While the results of nucleotide sequences (Cty b) showed the highest similarity (100%) between M. muntjak and M. truongsonensis and the lowest s (91.5%) among M. putaoensis and M. crinifrons. The phylogenetic tree of muntjac species (16s rRNA gene) shows the main two clusters, the one including M. putaoensis, M. truongsonensis, M. rooseveltorum, and M. muntjak, and the second one including M. crinifrons and M. vuquangensis. The M. reevesi exists separately in the phylogenetic tree. The phylogenetic tree of muntjac species using cytochrome b genes shows that the M. muntjak and M. truongsonensis are clustered in the same group.

Este estudo visou identificar as semelhanças filogenéticas entre os muntjac (Muntiacus spp.). As semelhanças filogenéticas entre sete grandes espécies muntjac foram estudadas comparando a sequência de nucleótidos de 16s rRNA e genoma citocromo b. As sequências de nucleótidos, obtidas a partir de bases de dados NCBI, foram alinhadas utilizando o software DNASTAR. Foi criada uma árvore filogenética para as espécies selecionadas de muntjac utilizando o método de probabilidade máxima no software MEGA7. Os resultados das sequências de nucleótidos (16s rRNA) mostraram semelhanças filogenéticas entre o M. truongsonensis e o M. rooseveltorum tiveram o maior número (99,2%) enquanto as semelhanças mais baixas (96,8%) encontradas entre M. crinifrons e M. putaoensi. Enquanto os resultados das sequências de nucleótidos (Cty-b) apresentaram a maior semelhança (100%) entre M. muntjak e M. truongsonensis e os mais baixos (91,5%) entre M. putaoensis e M. crinifrons. A árvore filogenética das espécies muntjac (gene rRNA 16s) mostra os dois principais aglomerados, o que inclui M. putaoensis, M. truongsonensis, M. rooseveltorum e M. muntjak, e o segundo incluindo M. crinifrons e M. vuquangensis. O M. reevesi existe separadamente na árvore filogenética. A árvore filogenética das espécies muntjac usando genes citocromo b mostra que os M. muntjak e M. truongsonensis estão agrupados no mesmo grupo.

Genetic similarities and phylogenetic analysis of Muntjac (Muntiacus spp.) by comparing the nucleotide sequence of 16S rRNA and cytochrome B genome

Abstract This study aimed to identify the phylogenetic similarities among the muntjac (Muntiacus spp.). The phylogenetic similarities among seven major muntjac species were studied by comparing the nucleotide sequence of 16s rRNA and cytochrome b genome. Nucleotide sequences, retrieved from NCBI databases were aligned by using DNASTAR software. A phylogenetic tree was created for the selected species of muntjac by using the maximum likelihood method on MEGA7 software. The results of nucleotide sequences (16s rRNA) showed phylogenetic similarities between, the M. truongsonensis and M. rooseveltorum had the highest (99.2%) while the lowest similarities (96.8%) found between M. crinifrons and M. putaoensi. While the results of nucleotide sequences (Cty b) showed the highest similarity (100%) between M. muntjak and M. truongsonensis and the lowest s (91.5%) among M. putaoensis and M. crinifrons. The phylogenetic tree of muntjac species (16s rRNA gene) shows the main two clusters, the one including M. putaoensis, M. truongsonensis, M. rooseveltorum, and M. muntjak, and the second one including M. crinifrons and M. vuquangensis. The M. reevesi exists separately in the phylogenetic tree. The phylogenetic tree of muntjac species using cytochrome b genes shows that the M. muntjak and M. truongsonensis are clustered in the same group.

Resumo Este estudo visou identificar as semelhanças filogenéticas entre os muntjac (Muntiacus spp.). As semelhanças filogenéticas entre sete grandes espécies muntjac foram estudadas comparando a sequência de nucleótidos de 16s rRNA e genoma citocromo b. As sequências de nucleótidos, obtidas a partir de bases de dados NCBI, foram alinhadas utilizando o software DNASTAR. Foi criada uma árvore filogenética para as espécies selecionadas de muntjac utilizando o método de probabilidade máxima no software MEGA7. Os resultados das sequências de nucleótidos (16s rRNA) mostraram semelhanças filogenéticas entre o M. truongsonensis e o M. rooseveltorum tiveram o maior número (99,2%) enquanto as semelhanças mais baixas (96,8%) encontradas entre M. crinifrons e M. putaoensi. Enquanto os resultados das sequências de nucleótidos (Cty-b) apresentaram a maior semelhança (100%) entre M. muntjak e M. truongsonensis e os mais baixos (91,5%) entre M. putaoensis e M. crinifrons. A árvore filogenética das espécies muntjac (gene rRNA 16s) mostra os dois principais aglomerados, o que inclui M. putaoensis, M. truongsonensis, M. rooseveltorum e M. muntjak, e o segundo incluindo M. crinifrons e M. vuquangensis. O M. reevesi existe separadamente na árvore filogenética. A árvore filogenética das espécies muntjac usando genes citocromo b mostra que os M. muntjak e M. truongsonensis estão agrupados no mesmo grupo.

Prospective production of fructose and single cell protein from date palm waste

BACKGROUND: Fructose and single cell protein are important products for the food market. Abundant amounts of low-grade dates worldwide are annually wasted. In this study, highly concentrated fructose syrups and single cell protein were obtained through selective fermentation of date extracts by Saccharomyces cerevisiae. RESULTS: The effect of air flow (0.1, 0.5, 0.75, 1, 1.25 and 1.5 vvm) and pH (4.5, 4.8, 5, 5.3 and 5.6) was investigated. Higher air flow led to lower fructose yield. The optimum cell mass production of 10 g/L was achieved at air flow of 1.25 vvm with the fructose yield of 91%. Similar cell mass production was obtained in the range pH of 5.0­5.6, while less cell mass was obtained at pH less than 5. Controlling the pH at 4.5, 5.0 and 5.3 failed to improve the production of cell mass which were 5.6, 5.9 and 5.4 g/L respectively; however, better fructose yield was obtained. CONCLUSIONS: Extension of the modified Gompertz enabled excellent predictions of the cell mass, fructose production and fructose fraction. The proposed model was also successfully validated against data from literatures. Thus, the model will be useful for wide application of biological processes.

Kinetic modeling of the simultaneous production of ethanol and fructose by Saccharomyces cerevisiae

Background: Ethanol and fructose are two important industrial products that enjoy many uses. In this contribution, their production via selective fermentation of date extract using Saccharomyces cerevisiae was studied. Scaling up the process for possible commercialization was investigated in three fermentors with working volume ratio of 1:40:400. Results: Higher ethanol concentration was obtained in the larger fermentor due to conversion of fructose. Fructose yields in the 0.5-L, 7.5-L and 80-L fermentors were 99, 92 and 90%, respectively. Good fitting was obtained with the modified Monod kinetics; however, a better fit of cell mass was obtained with the modified Ghose­Tyagi model which accounts for ethanol inhibition. Conclusions: The modified Gompertz model was expanded to facilitate prediction of products' formation and fructose fractions in all three fermentors. Such expansion will be beneficial in industrial applications.

First line management of adult diabetic ketoacidosis patients

BackgroundiDiabetic Ketoacidosis [DKA] is a hyperglycemic crisis that can occur in patients with both type 1 and 2 diabetes mellitus. It is a medical emergency with a significant morbidity and mortality. It is however a potentially reversible condition in case an emergency and immediate medical attention, prompt recognition, diagnosis and treatment were provided

Aim of the Study: was to leverage the current research data in order to construct a treatment guideline for diabetic ketoacidosis in the emergency department

Methods:A literature search was carried out on MEDLINE [including MEDLINE in-process], CINAHL,Embase and the Cochrane Library. Databases using [diabetic ketoacidosis] as a MeSH heading and as textword. High yield journals were also hand searched

Findings: The initial treatment phase aims to restore circulating volume, reduce blood glucose levels, to correct any electrolyte imbalances and to reduce ketone levels which in turn corrects the acidosis. Evidence also showed that there is no need for insulin bolus prior to starting an insulin drip in the treatment of diabetic ketoacidosis. Also, using beta-hydroxybutyrate at presentation can expedite diagnosis and therefore treatment. Implementing treatment guidelines into the emergency department may help expedite diagnosis and treatment

Conclusion: Prompt first line management of DKA is the most critical stage to profoundly reduce morbidity and mortality rates of this potentially fatal crisis. It's therefore crucial to follow the evidence-based guidelines and DKA protocol in the emergency department to expedite diagnosis, guide treatment, and improve continuity of care between the emergency department and the ICU as well as improving the clinical outcomes of patients with DKA. Initially, this will improve outcomes by decreasing the delay until treatment is initiated andprovide a continuum of treatment between the emergency department and the intensive care unit

Furthermore, the healthcare providersmust ensure that they have the ability to provide support and education to people at risk of developing DKA and those that have had an episode of DKA by spreading awareness and education to help reduce both the initial occurrence and recurrence of this often preventable life-threatening condition

Prevalence of Nocardiosis in Sputum of HIV Positive/AIDS Patients in a Tertiary Health Institution in North Central Nigeria.

Aim: This study was designed to determine the prevalence of Nocardia species in the sputum of HIV/AIDS patients attending Highly Active Antiretroviral Therapy (HAART) clinic at a tertiary health institution in the North central part of Nigeria. Study Design: This study was an analytical cross-sectional laboratory based research. Place and Duration of Study: University of Ilorin teaching hospital (UITH), Ilorin. Nigeria between August 2012 and February 2013. Method: Two hundred and forty eight (248) patients were recruited for this study and had their sputum collected in duplicates for investigation. The samples were cultured on Buffered Charcoal Yeast Extract (BCYE) medium. Gram and Auramine Rhodamine staining were carried out on the isolates respectively for microscopy. Result: Only one (1) patient tested positive to Nocardia species giving a prevalence rate of 0.4%. Conclusion: This study gives an indication that Pulmonary Nocardiosis may be found within UITH among HIV patients.

Plasma proteosome level as a potential marker for hepatocellular carcinoma

Hepatocellular carcinoma [HCC] is a fatal malignancy. Effective curative surgery is achieved when HCC is detected earlier. Proteosomes, the main non-lysosomal proteolytic structures organising the cellular mechanisms of cleaving proteins, can be considered a tumour marker in many kinds of malignancies. The aim of this study was to assess the plasma proteosome level in HCC and cirrhosis and, accordingly, evaluate its potential diagnostic ability in the detection of HCC in cirrhosis. This study included 60 patients, divided into two groups: the HCC group and the liver cirrhosis group. Twenty normal subjects served as a control group. Serum levels of proteosome and alpha-foetoprotein [AFP] were measured using the enzyme-linked immunosorbent assay [ELISA] technique. Plasma proteosome levels were significantly higher in patients with HCC and in patients with cirrhosis without HCC when compared to controls individually [p > 0.002 and p > 0.001, respectively] but did not reach a significant differentiating level between them [area under curve [AUC] = 0.641, p = 0.061]. Moreover, the plasma proteosome level was not correlated with the severity of HCC by the Milan criteria or with AFP level. In addition, it was not significantly related to laboratory or Child-Pugh scoring. Moreover, the combined use of plasma proteosome level and AFP measurements for the diagnosis of HCC was not effective. In this study, the plasma proteosome level was comparably recorded in both patients with cirrhosis and patients with HCC [mean value +/- standard deviation were 5.796 +/- 1.46 and 7.176 +/- 2.48 microgml[-1], respectively], not reaching a significant differentiating level between them, although predictability of HCC using the plasma proteosome level was significant [p = 0.017]

new olympus digital flexible ureteroscope [URF-V]: initial experience

Flexible ureterorenoscopes [FURSs] are considered important additions to urology armamentarium. One of the technical drawbacks is the poor optic image provided by fiberoptic endoscope as well as the fragility of this conventional fiberoptic endoscope. This study aim is to evaluate practical performances and functional durability of the new Olympus digital flexible ureteroscope [ODF-URS] [URF-V] in a single center clinical setting. A number of 60 diagnostic and therapeutic procedures were performed over a period of 6 months in a single center [Tenon University Hospital], using a single ODF-URS [URF-V]. This device provided a 275[degree sign] maximal down-deflection [MDD] and 180[degree sign] maximal up-deflection [MUD]. ODF-URS [URF-V] was used for a total time of 90 h and 30 min, with average time duration of 90.5 min per procedure. After 60 procedures, MDD decreased from 275[degree sign] to 217[degree sign], while the MUD decreased from 180[degree sign] to 161[degree sign]. During six procedures [10%], URF-V failed to access inferior calyx due to a narrow lower calyx infundibulum. New ODF-URS [URF-V] is a reliable and durable device, with a good success rate and improved functional parameters. It is a superior device compared to predecessor generations of conventional fiberoptic endoscopes for the light source and the image quality; however, randomized comparative studies are necessary to evaluate performances and durability of this device

Endemic goitre in the Sudan despite long-standing programmes for the control of iodine deficiency disorders

Objective To describe the status of iodine deficiency disorders (IDDs) in the Sudan more than 25 years after the initiation of IDD control programmes and to explore the causes of endemic goitre in the country.Methods Testing for IDDs was carried out in 6083 schoolchildren 6 to 12 years of age from the capital cities of nine states in different areas of the country using the three indicators recommended by the World Health Organization: the prevalence of goitre, laboratory measurements of urinary iodine concentration in casual urine samples and serum thyroglobulin (Tg) levels. Serum levels of thyroxine (T4), triiodothyronine (T3) and thyroid-stimulating hormone (TSH), as well as urinary secretion of thiocyanate, which can affect the transport of iodine into thyrocytes, were also measured.Findings The prevalence of goitre in the different samples ranged from 12.2% to 77.7% and was 38.8% overall. The overall median urinary iodine concentration was 6.55 µg/dl, with the lowest median value having been found in Kosti city (2.7µg/dl), situated in the centre of the country, and the highest (46.4 µg/dl) in Port Sudan, on the Red Sea coast. The highest mean serum Tg level (66.98 ng/ml) was found in Kosti city, which also had the highest prevalence of goitre.Conclusion IDDs still constitute a public health problem throughout urban areas in the Sudan and iodine deficiency appears to be the main etiological factor involved

Antimicrobial agent- resistance in Escherichia coli, isolated from patients with diarrhea in Aden

The potency of five types of antimicrobial agents, tested against four Escherichia coli isolates and causing diarrhea in patients, in Aden were evaluated. The production of the beta-lactamase was also evaluated by using direct capillary tubes method. Ofloxacin was the most antimicrobial agent with the highest susceptibility rate and the most active compound among the E. coli isolates [100% susceptible], followed by tetracycline [75% susceptible] and ampicillin [50% susceptible]. The resistance rates to cefpodoxime [100% resistance] and amoxi-clavu. [75% resistance] were high among the isolates in this study. The studied E. coli isolates demonstrated high resistance rates to beta-lactam drugs, including amoxicillin- beta-lactamase inhibitor combination [amoxi-clavu.]. The production of beta-lactamase among the studied E.coli isolates [25%] and, therefore, did not contribute significantly to the resistance of these isolates. The results presented in this study confirm that bacterial resistance continues to be a great problem in Aden

Kinetic study of purified urease enzyme from date-palm seeds

Date seeds of Alhajere variety [from Wadi Hajer - Hadramout] was studied for urease enzyme content. Results showed the occurrence of the urease enzyme, with specific activity 598 unit /mg protein. Urease extracted from Alhajere date seeds was purified by using ammonium sulphate [40-60%] saturation and dialyzed by using 20 mM potassium phosphate buffer at pH 8. The results of urease characterization showed that the optimum pH of the enzyme activity was 8 and also the same value for the optimum pH of the enzyme stability. The optimum temperature of the enzyme activity was 40°C and that for urease stability was [40-50]°C. Kinetic studies showed that Km and Vmax values were 8.4 mmolar and 975 mmole/min respectively, using urea as a substrate

Pattern of use and impact of patient sitters on the quality of healthcare in Saudi Arabia

To assess the pattern of use and impact of patient sitters on the quality of healthcare in Taif Armed Forces Hospital, Taif, Kingdom of Saudi Arabia [KSA]. A cross-sectional survey was conducted at the Armed Forces Hospital, Taif Region, KSA from 1st January to 30th March 2008. The study included 203 admitted patients, 125 patient sitters, and 213 physicians and nurses. Three different questionnaires were specifically designed for each group of participants including information on the pattern and duration of patient sitting, and potential benefits and harm among sitters. Approximately 58.4% of the participating sitters were women, 88% were Saudis, with age range from 17-60 years old, and mean [ +/- standard deviation] of 33.0 [ +/- 9.64] years. More than 73% of the sitters have regular jobs. Types of the room and patient's age were the significant predictors for the presence of sitters. Patient satisfaction was not significantly associated with the presence, or absence of patient sitters. Pattern and use of patient sitters in Saudi Arabia is unique where socio-cultural factors play the most important role. This study is another reminder to the healthcare system in KSA, as well as other Arab countries to develop policies that clearly specify patient criteria that support the decision of patient sitter use

Testicular schistosomiasis

Testicular schistosomiasis is extremely rare, with only 12 cases reported. Reaching the diagnosis for this lesion that mimics malignant tumor is a great dilemma for the radiologist as well as the urologist. We report a case of testicular schistosomiasis from France that was managed conservatively. A 31 - year-old Egyptian male presented to the outpatient clinic with primary infertility for 9 years. Physical examination revealed healthy male without any congenital malformations. Blood count and C-reactive protein level were normal. Hormonal tests were normal. Scrotal ultrasound showed small mass at the right testis. Scrotal exploration was carried out and frozen section results were schistosomiasis. He was given medical therapy, and further investigations were normal. A thorough evaluation must be carried out, and testicular schistosomiasis may be considered in patients living in endemic areas. We emphasize the lack of data to reach this diagnosis by radiological imaging

Biochemical markers in patients with tuberculous pleural effusion

To compare the diagnostic efficiency of adenosine deaminase, isoenzyme adenosine deaminase-2 and concentration of interferon- gamma in patients with tuberculous pleural effusion. The prospective study was done on 103 patients who were divided into 3 groups: tuberculous, non-tuberculous infectious pleurisy, and malignant effusion. The adenosine deaminase, adenosine deaminase-2 and interferon- gamma were analyzed by receiver operating characteristic curves. There was increase of all three markers in tuberculous pleural effusion but not in nontuberculous effusion. The cut-off values for adenosine deaminase, adenosine deaminase-2 and interferon- gamma were 40, 26 U/l. and 299 pg/ml respectively. Adenosine deaminase, adenosine deaminase-2 activities were significantly higher in tuberculous effusion than in malignant pleural effusion [more than 5 times] and in non-tuberculous infectious pleurisy [more than 4 times]. The median of interferon- gamma concentration in pleural fluid of tuberculous patients was 1514.2 pg/ml [931.2-2187.5pg/ml] which was 10 times more than the median values of other groups of patients. There was no significant difference between patients with malignant effusion and those with non-tuberculous effusion. All three markers had higher diagnostic yield for tuberculous effusion

Community-based screening for pre-hypertension among military active duty personnel

To determine the prevalence of both pre-hypertension and hypertension, and risk factors associated with the newly diagnosed Saudi military active duty personnel. A community-based cross-sectional screening of 1238 Saudi military active duty service personnel was conducted during the period from September to December 2007 at the military units of Taif region, western Saudi Arabia. Screening tools included self-administrated questionnaire, general physical examination, anthropometric measurements, and assessment of blood pressure. All participants were Saudi males. Their age ranged from +/- 7.02. By applying the Joint National Committee on prevention, detection, evaluation, and treatment of high hypertension criteria, 214 [17.3%] were considered pre-hypertensive. Multivariate logistic regression analysis showed that obesity as measured by body mass index [odds ratio [OR]=2.71, confidence interval [CI]: 1.39-5.28], positive family history [OR=1.46, CI: 1.03-2.06], ever smoking [OR=1.45, CI: 1.05-2.02], and increased waist circumference [OR=1.04, CI: 1.02-1.06] were the significant predictors of hypertension among military active duty personnel. Pre-hypertension is a common hidden problem and it predicts the development of frank hypertension. Findings of the current study support the recommendation of lifestyle modification for pre-hypertension patients. However, further prospective studies are required to determine the role of pharmacotherapy in pre-hypertension

Anticoagulant induced leukoagglutination

Low leukocyte count secondary to leukocyte aggregation caused by an ethylene diamine tetra acetic acid [EDTA] occur in both benign and malignant disorders. We report a 71-year-old male patient who was admitted to the hospital with acute chest infection. Complete blood count [CBC] collected in EDTA tube and analyzed by sysmex instrument SE/9500 revealed low hemoglobin level of 9.4g/dl, white blood cell [WBC] count of 8.2x109/L and neutrophils of 4.8x109/L. Peripheral blood smear review shows multiple leukocytes aggregation one clump in each field. When we ask for another blood sample in citrate anticoagulant, the CBC showed WBC count of 11.8x109/L and neutrophils of 6.26 x 109/L. This is a case of low leukocyte count secondary to leukocyte aggregation induced by EDTA