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Uterine rupture mostly occurs in the third trimester. However, it may occur at an earlier time with the same catastrophic consequences. The authors present a case report of uterine rupture occurring in the second trimester at 18 weeks gestation. [ABSTRACT FROM AUTHOR]

Background/aims: Community‐based assessment and management of chronic liver disease (CLD) in people who are homeless (PWAH) remain poorly described. We aimed to determine prevalence/predictors of CLD in PWAH and assess the performance of non‐invasive liver fibrosis and injury markers. Methods: The Vulnerable Adult LIver Disease (VALID) study provided a "one‐stop" liver service based at homeless hostels. Our primary outcome was the prevalence of clinically significant hepatic fibrosis (CSHF; liver stiffness measurement (LSM) ≥8 kPa). Results: Total individuals recruited were 127, mean ± SD age 47 ± 9.4 years, 50% (95% CI 41%‐59%) and 39% (95% CI 31%‐48%) having alcohol dependence and a positive HCV RNA respectively. CSHF was detected in 26% (95% CI 17%‐35%), independent predictors being total alcohol unit/week (OR 1.01, 95% CI 1.00‐1.02, P =.002) and HCV RNA positivity (OR 2.93, 95% CI 1.12‐7.66, P =.029). There was moderate agreement between LSM and Enhanced Liver Fibrosis (ELF) score (kappa 0.536, P <.001) for CSHF as assessed by LSM ≥8 kPa. Those with CSHF had significantly higher levels of IFN‐γ (P =.002), IL‐6 (P =.001), MMP‐2 (P =.006), ccCK‐18 (P <.001) and ELF biomarkers (P <.001), compared to those without CSHF. Service uptake was ≥95%. Direct acting antiviral (DAA) treatment completion was 93% (95% CI 77%‐99%), sustained virological response (SVR) being 83% (95% CI 64%‐94%). Conclusion: There is a significant liver disease burden from HCV and alcohol in PWAH. Non‐invasive liver fibrosis and injury markers can help in identifying such individuals in the community. Despite a challenging cohort, excellent service uptake and high DAA‐based SVRs can be achieved. [ABSTRACT FROM AUTHOR]

Schistosomiasis affects nearly 250 million individuals in the world. Hepatosplenic schistosomiasis (HSS) results in periportal fibrosis (PPF) and portal hypertension (pHTN). Ultrasound has been extensively used for the diagnosis of Schistosoma‐related PPF and a number of staging methods have been validated for this purpose such as Strickland classification and Niamey protocol. Nevertheless, the application of noninvasive techniques, particularly elastography modalities, has not been well explored. In this review, we describe the various noninvasive diagnostic tools for assessment of Schistosoma‐related PPF including US parameters, serum biomarkers, and US‐based elastography techniques. While elastography techniques have demonstrated value in the evaluation of HSS, the evidence remains limited with most studies recruiting a small number of patients. Longitudinal studies with larger sample size are required in order to devise robust criteria to accurately assess the performance of noninvasive techniques in the prediction of both regression and progression of the degree of PPF and identify their cost‐effectiveness in community screening. [ABSTRACT FROM AUTHOR]

Sarcoidosis is a systemic inflammatory disorder characterized by "noncaseating granulomas." It primarily affects the lungs, but multiple other organs can be involved. Sarcoidosis has been increasingly reported in association with cancer. It can precede, follow or occur at the same time as the diagnosis of cancer. We report a case of sarcoidosis that was diagnosed concomitantly with colon cancer, highlighting the diagnostic dilemma of sarcoidosis vs. cancer metastasis, the relationship between the two, and the value of PET scan in follow-up and monitoring of disease activity. [ABSTRACT FROM AUTHOR]

Staphylococcal food poisoning is an intoxication that results from the consumption of improperly prepared or stored foods containing sufficient amounts of one or more preformed S. aureus enterotoxins. Nowadays, many researchers worldwide noted an emergence of resistant strains such as Staphylococci particularly for the antibiotic methicillin. Therefore, this study was aimed to determine the existence of Staphylococcus aureus and its enterotoxins, mecA genes, in selected food samples. A total of 400 selected food samples were collected from different areas in Khartoum State. The selected foods included cheese, meat products, fish, and raw milk. One hundred samples from each type of food were cultivated, and the resultant growth yielded 137 (34.25%) S. aureus, 126 (31.5%) bacteria other than S. aureus, and 137 (34.25%) yielded no growth. Eighty-four of the 137 S. aureus isolates were randomly selected and tested for the presence of mecA and enterotoxin genes. The oxacillin sensitivity test showed that 15 (11%) of 137 S. aureus isolates were oxacillin resistant. The PCR assay showed that the mecA gene was detected in 15 of 84 (17%) S. aureus isolates. Simultaneously, only 2 (2.385%) out of 84 S. aureus isolates showed an enterotoxin B gene product. There was a relatively moderate prevalence of methicillin-resistant Staphylococcus aureus with very low frequency of enterotoxin B gene in different kinds of selected food samples collected from Khartoum State. These findings elucidate the increased risk on public in Khartoum being affected by Staphylococcal food poisoning upon consumption of dairy or meat products prepared in unhygienic conditions that could lead to intoxication by Staphylococcus aureus enterotoxins. [ABSTRACT FROM AUTHOR]

Pyoderma gangrenosum is an uncommon inflammatory disorder characterized by neutrophilic infiltration of the skin. It can present as skin papules or pustules that progress into painful ulcers. 30–40% of the cases are associated with other systemic diseases such as inflammatory bowel diseases, rheumatoid arthritis, and proliferative hematological disorders. Uniquely, this condition has been associated with systemic lupus erythematosus (SLE). The rarity of this disorder poses a diagnostic and therapeutic challenge. We present a case of a 55-year-old female with a history of SLE and chronic right leg ulcer, presented with increased pain from the ulcer associated with a mild flare of her cutaneous lupus; examination revealed circumferential skin ulcer measuring about 25 cm extending around the right leg above the ankle with prominent fibrinous material and surrounding erythema. Blood work showed elevated WBC with neutrophilic predominance. Serology revealed a positive ANA, elevated RNP, smith, and SSA/Ro antibodies with normal anti-CCP level. Skin biopsy was taken, and it showed a diffuse neutrophilic and lymphocytic infiltrate consistent with the diagnosis of pyoderma gangrenosum. The patient was then treated with topical and systemic steroids and sequentially with dapsone, methotrexate, mycophenolate, and cyclosporine for over a two-year period but failed to show any improvement. Therefore, a trial of intravenous immunoglobulin (IVIG) therapy was attempted and produced a dramatic response after two-month infusions characterized by shrinking in the size of the ulcer and resolving pain. We believe that refractory PG poses a therapeutic challenge, and despite a lack of specific guidelines, IVIG can be attempted if initial suppressive treatment fails to show signs of improvement. [ABSTRACT FROM AUTHOR]

The article presents a comparative study of the national security, defense policies and defense-planning approaches of three small states that include Qatar, the United Arab Emirates (UAE), and Singapore. Topics discussed include Qatar's prudent economic policies, astute diplomatic maneuvers, and national security and defense, the development of the national security policy and defense planning of the UAE, and Singapore's deterrent power.

Summary: Background: Palliative care remains suboptimal in end‐stage liver disease. Aim: To inform a definitive study, we assessed palliative long‐term abdominal drains in end‐stage liver disease to determine recruitment, attrition, safety/potential effectiveness, questionnaires/interview uptake/completion and make a preliminary cost comparison. Methods: A 12‐week feasibility nonblinded randomised controlled trial comparing large‐volume paracentesis vs long‐term abdominal drains in refractory ascites due to end‐stage liver disease with fortnightly home visits for clinical/questionnaire‐based assessments. Study success criteria were attrition not >50%, <10% long‐term abdominal drain removal due to complications, the long‐term abdominal drain group to spend <50% ascites‐related study time in hospital vs large‐volume paracentesis group and 80% questionnaire/interview uptake/completion. Results: Of 59 eligible patients, 36 (61%) were randomised, 17 to long‐term abdominal drain and 19 to large‐volume paracentesis. Following randomisation, median number (IQR) of hospital ascitic drains (long‐term abdominal drain group vs large‐volume paracentesis group) were 0 (0‐1) vs 4 (3‐7); week 12 serum albumin (g/L) and serum creatinine (μmol/L) were 29 (26.5‐32.5) vs 30 (25‐35) and 104.5 (81‐115.5) vs 127 (63‐158) respectively. Total attrition was 42% (long‐term abdominal drain group 47%, large‐volume paracentesis group 37%). Median (IQR) fortnightly community/hospital/social care ascites‐related costs and percentage study time in hospital were lower in the long‐term abdominal drain group, £329 (253‐580) vs £843 (603‐1060) and 0% (0‐0.74) vs 2.75% (2.35‐3.84) respectively. Self‐limiting cellulitis/leakage occurred in 41% (7/17) in the long‐term abdominal drain group vs 11% (2/19) in the large‐volume paracentesis group; peritonitis incidence was 6% (1/17) vs 11% (2/19) respectively. Questionnaires/interview uptake/completion were ≥80%; interviews indicated that long‐term abdominal drains could transform the care pathway. Conclusions: The REDUCe study demonstrates feasibility with preliminary evidence of long‐term abdominal drain acceptability/effectiveness/safety and reduction in health resource utilisation. Trial registration: ISRCTN30697116, date assigned: 07/10/2015. [ABSTRACT FROM AUTHOR]

Background and Purpose: The adenosine A1 receptor is reported to mediate several excitatory effects in the airways and has inhibitory effects in the CNS. In this study, we investigated the role of peripheral and central A1 receptors in regulating cough and airway obstruction.Experimental Approach: Drugs were administered to guinea pigs via inhalation or i.c.v. infusion. Following the administration of different drugs, cough was induced by exposing guinea pigs to aerosolized 0.4 M citric acid. An automated analyser recorded both cough and airway obstruction simultaneously using whole-body plethysmography.Key Results: The A1 receptor agonist, cyclopentyladenosine (CPA, administered by inhalation), dose-dependently inhibited cough and also inhibited airway obstruction. Similarly, CPA, administered i.c.v., inhibited both the citric acid-induced cough and airway obstruction; this was prevented by pretreatment with the A1 receptor antagonist DPCPX (i.c.v.). Treatment with DPCPX alone dose-dependently enhanced the citric acid-induced cough and airway obstruction. This effect was reversed following treatment with either the glutamate GluN1 receptor antagonist D-AP5 or the neurokinin NK1 receptor antagonist FK-888.Conclusions and Implications: These findings suggest that activation of either peripheral or central adenosine A1 receptors inhibits citric acid-induced cough and airway obstruction. The data also suggest that tonic activation of central adenosine A1 receptors serves as a negative regulator of cough and airway obstruction, secondary to inhibition of excitatory glutamatergic and tachykininergic neurotransmission. [ABSTRACT FROM AUTHOR]

Background & Aims: The incidence and mortality from end‐stage liver disease is increasing, with a minority eligible for liver transplantation. Ascites is the commonest complication of end‐stage liver disease and large volume paracentesis (LVP) the accepted management strategy where refractory to medical treatment. In malignant ascites, permanent indwelling peritoneal catheters (PIPC) are an established palliative intervention. The aims are to describe available data using permanent indwelling peritoneal catheters in refractory ascites due to end‐stage liver disease. Methods: Using systematic review methodology, databases were searched (MEDLINE, EMBASE, CINAHL [The Cumulative Index to Nursing and Allied Health Literature], Google Scholar and Cochrane Database of Systematic Reviews from inception‐March 2018), for studies combining ascites and palliative care. Inclusion and exclusion criteria were applied to results. Results: Following initial and updated searches, 225 studies were identified for full text review, 18 were eligible for final analysis. The studies displayed heterogeneity in design, reported on different indwelling catheters and were overall of low quality. Only one pilot randomised controlled trial was identified, of PIPC versus LVP, recruiting one patient into each arm. Technical insertion success was 100%, with low rates of non‐infectious complications (<12%), none life threatening. Rates of bacterial peritonitis were not unacceptably high (12.7%), considering this was an end‐stage liver disease population and only a minority utilising long‐term prophylactic antibiotics. Only one study attempted quality‐of‐life assessments; none addressed potential health economic benefits. Conclusions: Despite lack of well‐designed studies, preliminary data suggests low significant complication rates; however safety and efficacy of permanent indwelling peritoneal catheters in end‐stage liver disease remains to be confirmed. Further prospective randomised controlled trials are warranted, potentially translating permanent indwelling peritoneal catheters into improved palliative care in end‐stage liver disease. [ABSTRACT FROM AUTHOR]

The article discusses the military orientalism is a study of Western views of warfare as conducted by Eastern peoples and military institutions and Western fascination with military methods of others. It is mentioned that the concept is particularly manifest in the insistence among Western military historians and strategists on the contrast between Western and Eastern ways of wars. The article adds orientalist crusade point out the defects of the Other's way of war and delegitimize it.

This article examine the Iranian civil-military relations, aims to provide a succinct history of the evolution of the relationship between the military and the political process from 1979 to 2018. It mentions that Iran has suffered coups in its modern history and has been a force to be reckoned with in the political and socioeconomic spheres. The article adds U.S. sanctions on Iran following the withdrawal from the nuclear accord Joint Comprehensive Plan of Action (JCPOA).

Schiff-bases of chitosan (CS) and carboxymethyl chitosan (CMCS)/silver nanoparticles (AgNPs) have been synthesized, characterized, and evaluated as antimicrobial agents against two Gram +ve bacteria (Bacillus cereus and Staphylococcus aureus) and two Gram −ve bacteria (Escherichia coli and Pseudomonas aeruginosa) in addition to Candida albicans as a fungus. The in situ reactions of CS and/or CMCS with some pyrazole aldehyde derivatives in acidic media containing silver nitrate to yield silver nanoparticles loaded onto CS and CMCS/Schiff-bases were carried out. Characterizations of the prepared compounds via FTIR spectroscopy, SEM, TEM, and TGA were carried out. Schiff-bases/silver nanoparticles of CS and CMCS showed higher antimicrobial activity than the blank CS and CMCS. The presence of AgNO3 (3% wt%) displayed high antibacterial efficiencies with inhibition zones in the extent of 19–39 mm. TEM analysis showed that the size of the silver nanoparticles is in the range of 4–28 nm for the prepared nanocomposites. [ABSTRACT FROM AUTHOR]

The Th17/IL-17 pathway is implicated in the pathogenesis of periodontitis (PD), however the mechanisms are not fully understood. We investigated the mechanism by which the periodontal pathogens Porphyromonas gingivalis ( Pg) and Aggregatibacter actinomycetemcomitans ( Aa) promote a Th17/IL-17 response in vitro, and studied IL-17+ CD4+ T-cell frequencies in gingival tissue and peripheral blood from patients with PD versus periodontally healthy controls. Addition of Pg or Aa to monocyte/CD4+ T-cell co-cultures promoted a Th17/IL-17 response in vitro in a dose- and time-dependent manner. Pg or Aa stimulation of monocytes resulted in increased CD40, CD54 and HLA-DR expression, and enhanced TNF-α, IL-1β, IL-6 and IL-23 production. Mechanistically, IL-17 production in Pg-stimulated co-cultures was partially dependent on IL-1β, IL-23 and TLR2/TLR4 signalling. Increased frequencies of IL-17+ cells were observed in gingival tissue from patients with PD compared to healthy subjects. No differences were observed in IL-17+ CD4+ T-cell frequencies in peripheral blood. In vitro, Pg induced significantly higher IL-17 production in anti-CD3 mAb-stimulated monocyte/CD4+ T-cell co-cultures from patients with PD compared to healthy controls. Our data suggest that periodontal pathogens can activate monocytes, resulting in increased IL-17 production by human CD4+ T cells, a process that appears enhanced in patients with PD. [ABSTRACT FROM AUTHOR]

The article offers information related to terrorism and politics in Iraq focusing on several factors on the development of the terrorist group Islamic State (IS) such as sectarianism, nation building, and state-formation. Topics include the goals of the terrorist group such as support Muslims and reestablish a wise caliphate, the emergence of the IS by Abu Musab al-Zarqawi, and the war strategy of the group.

The article explores focuses on the declaration of a caliphate or the Islamic State among Arab countries. An overview on the origins, military operation and goals of the Islamic State in Iraq and Syria (ISIS) is noted. It cites that ISI organization has reemerged between 2010 and 2013 in which it aimed to rebuild the military and administrative capacities of Iraqi state and to solve the growing conflict of the Iraqi state. The caliphate of ISIS serves as the result of peace agreements.

Segmentary idiopathic splenic vein stenosis is a very rare condition. We report a unique case of acute gastric variceal bleeding in a 31-year-old pregnant woman with left-sided portal hypertension from segmentary idiopathic splenic vein stenosis. Hemorrhage was controlled by endoscopic acrylate glue injection and urgent cesarean section allowed successful delivery. The patient declined subsequent intervention and has been on beta-blockers with no bleeding recurrence since then. This condition, its pathophysiological implications and management are discussed. [ABSTRACT FROM AUTHOR]

Angiotensin-(1-7) [Ang-(1-7)] may have beneficial effects in diabetes mellitus-induced erectile dysfunction (DMIED) but its molecular actions in the diabetic corpus cavernosum (CC) are not known. We characterized the effects of diabetes and/or chronic in vivo administration of Ang-(1-7) on vascular reactivity in the rat corpus cavernosum (CC) and on protein expression levels of potential downstream effectors of the renin-angiotensin-aldosterone system (RAAS) such as angiotensin-converting enzyme (ACE), ACE2, Rho kinases 1 and 2 (ROCK1 and ROCK2), and omega-hydroxylase, the cytochrome-P450 enzyme that metabolizes arachidonic acid to form the vasoconstrictor, 20-hydroxyeicosatetraenoic acid. Streptozotocin-treated rats were chronicically administered Ang-(1-7) with or without A779, a Mas receptor antagonist, during weeks 4 to 6 of diabetes. Ang-(1-7) reversed diabetes-induced abnormal reactivity to vasoactive agents (endothelin-1, phenylepherine, and carbachol) in the CC without correcting hyperglycemia. Six weeks of diabetes led to elevated ACE, ROCK1, ROCK 2, and omega-hydroxylase and a concomitant decrease in ACE2 protein expression levels that were normalized by Ang-(1-7) treatment but not upon coadministration of A779. These data are supportive of the notion that the beneficial effects of Ang-(1-7) in DMIED involve counterregulation of diabetes-induced changes in ACE, ACE2, Rho kinases, and omega-hydroxylase proteins in the diabetic CC via a Mas receptor-dependent mechanism. [ABSTRACT FROM AUTHOR]

Vaccination of immunocompromised patients is recommended in many national guidelines to protect against severe or complicated influenza infection. However, due to uncertainties over the evidence base, implementation is frequently patchy and dependent on individual clinical discretion. We conducted a systematic review and meta-analysis to assess the evidence for influenza vaccination in this patient group. Healthcare databases and grey literature were searched and screened for eligibility. Data extraction and assessments of risk of bias were undertaken in duplicate, and results were synthesised narratively and using meta-analysis where possible. Our data show that whilst the serological response following vaccination of immunocompromised patients is less vigorous than in healthy controls, clinical protection is still meaningful, with only mild variation in adverse events between aetiological groups. Although we encountered significant clinical and statistical heterogeneity in many of our meta-analyses, we advocate that immunocompromised patients should be targeted for influenza vaccination. [ABSTRACT FROM AUTHOR]

The oral and intestinal host tissues both carry a heavy microbial burden. Although commensal bacteria contribute to healthy intestinal tissue structure and function, their contribution to oral health is poorly understood. A crucial component of periodontal health is the recruitment of neutrophils to periodontal tissue. To elucidate this process, gingival tissues of specific-pathogen-free and germ-free wild-type mice and CXCR2 KO and MyD88 KO mice were examined for quantitative analysis of neutrophils and CXCR2 chemoattractants ( CXCL1, CXCL2). We show that the recruitment ofneutrophils to the gingival tissue does not require commensal bacterial colonization but is entirely dependent on CXCR2 expression. Strikingly, however, commensal bacteria selectively upregulate the expression of CXCL2, but not CXCL1, in a MyD88-dependent way that correlates with increased neutrophil recruitment as compared with germ-free conditions. This is the first evidence that the selective use of chemokine receptor ligands contributes to neutrophil homing to healthy periodontal tissue. [ABSTRACT FROM AUTHOR]

The article focuses on the Iranian military in revolution, politics and war. It says that the administration of Mohammad Reza Shah was characterized by disorder, in which the Allies invaded the country and paid no regard with ruler. It also mentions Mohammad Mosadegh who guided the National Front coalition that challenged that shah for control over the armed forces, and it adds that Iran's senior leadership and military commander have selected to adopt strategies of deterrence by denial.

BACKGROUND AND PURPOSE Angiotensin-(1-7) [Ang-(1-7)] has anti-inflammatory effects in models of cardiovascular disease and arthritis, but its effects in asthma are unknown. We investigated whether Ang-(1-7) has anti-inflammatory actions in a murine model of asthma. EXPERIMENTAL APPROACH The effects of Ang-(1-7) alone or in combination with the MAS1 receptor antagonist, A779, were evaluated over a 4 day period in an ovalbumin-challenged mouse model of allergic asthma. On day 5, bronchoalveolar lavage was performed, and lungs were sectioned and assessed histologically for quantification of goblet cells, perivascular and peribronchial inflammation and fibrosis. Biochemical analysis of the pro-inflammatory ERK1/2 and IκB-α was assessed. In addition, the effect of Ang-(1-7) on proliferation of human peripheral blood mononuclear cells (HPBMC) was investigated. KEY RESULTS Ang-(1-7) attenuated ovalbumin-induced increases in total cell counts, eosinophils, lymphocytes and neutrophils. Ang-(1-7) also decreased the ovalbumin-induced perivascular and peribronchial inflammation, fibrosis and goblet cell hyper/metaplasia. Additionally, Ang-(1-7) reduced the ovalbumin-induced increase in the phosphorylation of ERK1/2 and IκB-α. These effects of Ang-(1-7) were reversed by the MAS1 receptor antagonist A779. Furthermore, Ang-(1-7) inhibited phytohaemagglutinin (PHA)-induced HPBMC proliferation. CONCLUSION AND IMPLICATIONS Ang-(1-7), via its MAS1 receptor, acts as an anti-inflammatory pathway in allergic asthma, implying that activation of the MAS1 receptor may represent a novel approach to asthma therapy. [ABSTRACT FROM AUTHOR]

The article discusses the involvement of the Iranian Armed Forces in politics, war, and revolution. It says that the politics in Iran has been complicated by the increased militarization in various Iranian policies. It states that Deputy Chief Mohammad Reza Shah used the military to wage war against centrifugal forces that threatens Iran's unity. It adds that no revolution will succeed if the security apparatus and armed forces will remain united, cohesive, and organized to defend the state.

The article looks at the role of the Egyptian military in the instability of Egypt after the elevation of the presidency of Vice President Hosni Mubarak, former head of the Air Force in 1981. It mentions the steps taken by the Mubarak government immediately initiated an internal study to assess the reasons for the growth of Islamist militancy. It also looks at the role of the defense minister of the country between 1981 and 1987, Abdul Halim Abu Ghazala.

The article focuses on various issues related to military power in Egypt. It states that the position of the military during the 2011 revolution sealed the fate of President Hosni Mubarak's government. It explores the role of military power in the domestic and foreign matters of the country since ancient times. An historical analysis of modern civil-military relations in the country from the 19th century to the end of the presidency of Anwar al-Sadat in 1981 is offered.

The Arg-gingipains (RgpsA and B) of Porphyromonas gingivalis are a family of extracellular cysteine proteases and are important virulence determinants of this periodontal bacterium. A monoclonal antibody, MAb1B5, which recognizes an epitope on glycosylated monomeric RgpAs also cross-reacts with a cell-surface polysaccharide of P. gingivalis W50 suggesting that the maturation pathway of the Arg-gingipains may be linked to the biosynthesis of a surface carbohydrate. We report the purification and structural characterization of the cross-reacting anionic polysaccharide (APS), which is distinct from both the lipopolysaccharide and serotype capsule polysaccharide of P. gingivalis W50. The structure of APS was determined by 1D and 2D NMR spectroscopy and methylation analysis, which showed it to be a phosphorylated branched mannan. The backbone is built up of α-1,6-linked mannose residues and the side-chains contain α-1,2-linked mannose oligosaccharides of different lengths (one to two sugar residues) attached to the backbone via 1,2-linkage. One of the side-chains in the repeating unit contains Manα1-2Manα1-phosphate linked via phosphorus to a backbone mannose at position 2. De- O-phosphorylation of APS abolished cross-reactivity suggesting that Manα1-2Manα1-phosphate fragment forms part of the epitope recognized by MAb1B5. This phosphorylated branched mannan represents a novel polysaccharide that is immunologically related to the post-translational additions of Arg-gingipains. [ABSTRACT FROM AUTHOR]

Details a study which explored the military power and security in Iraq from 1921 to 2003. Significance of military power to state formation; History of the Iraqi government and military power; Dissolution of the Iraqi Armed Forces.

The lipopolysaccharide (LPS) of Porphyromonas gingivalis is an important pro-inflammatory molecule in periodontal disease and a significant target of the host's specific immune response. In addition, we recently demonstrated using monoclonal antibodies that the Arg-gingipains of P. gingivalis are post-translationally modified with glycan chains that are immunologically related to an LPS preparation from this organism. In the present investigation, we determined the structure of the O-polysaccharide of P. gingivalis W50 that was fully characterized on the basis of 1D and 2D NMR (DQF-COSY, TOCSY, NOESY, ROESY, 1H-13C HSQC and 1H-31P HXTOCSY) and GC-MS data. These data allowed us to conclude that the O-polysaccharide is built up of the tetrasaccharide repeating sequence: →6)-α-d-Glcp-(1→4)-α-l-Rhap-(1→3)-β-d-GalNAc-(1→3)-α-d-Galp-(1→ and carries a monophosphoethanolamine residue at position C-2 of the α-rhamnose residue in a nonstoichiometric (approximately 60%) amount. These data indicate that the O-polysaccharide of P. gingivalis LPS is composed of an unusually modified tetrasaccharide repeating unit. [ABSTRACT FROM AUTHOR]