147 research outputs found
Sequence Stratigraphic Interpretation of XY-Field Onshore Niger Delta Basin Nigeria
Wireline logs and biostratigraphic data were integrated to attempt the sequence stratigraphy of âXY fieldâ onshore Niger Delta Basin which revealed three depositional sequences. Four sequence boundaries and three maximum flooding surfaces dated (17.7, 16.7, 15.5, and 13.1Ma) and (17.4, 15.9, 15.0 Ma) respectively were identified in both Wells. The delineated sequences comprised Lowstand Systems Tracts (LST), Transgressive Systems Tracts (TST) and Highstand Systems Tracts (HST), which reflect depositional systems deposited during different phases of base level changes. The sands of LST and HST show good reservoir qualities while the shales of the TSTs could form potential reservoir seals. Integration of lithofacies and biofacies data suggests that the depositional environments ranges from transitional to Outer Neritic environment
Arterial stiffness and hand osteoarthritis: a novel relationship?
SummaryObjectiveOsteoarthritis (OA) and vascular stiffening may share elements of common pathogenesis, but their potential relatedness has been the focus of little prior inquiry. We tested the hypothesis that these two aging-associated conditions are related to each other.MethodWe analyzed cross-sectional data from 256 participants of the Baltimore Longitudinal Study of Aging (BLSA), a study of normative aging. All underwent measurement of arterial pulse wave velocity (PWV), an index of vascular stiffness, as well as hand radiographs that were graded for evidence of OA. Twenty total joints across three joint groups (distal interphalangeal [DIP], proximal interphalangeal [PIP], carpal-metacarpal [CMC]) were each assigned a KellgrenâLawrence grade (KâL) of 0 (normal) through 4 (severe), with KâL grades âĽ2 considered evidence of definite OA. Radiographic hand OA was defined as definite OA changes in at least two of the three anatomic hand sites (DIP, PIP, CMC). OA burden was represented by the total number of affected OA joints, and a cumulative KâL grade was aggregated across all hand joint groups. The relationship of PWV with these three measures of hand OA was assessed by linear regression.ResultsUpon univariate analysis, the presence of radiographic hand OA (β=218.1, P<0.01), the total number of OA joints (β=32.9, P<0.01), and the cumulative KâL grade across all joint groups (β=12.2, P<0.01) were each associated with increased PWV. These associations, however, were no longer significant in age-adjusted models.ConclusionAlthough significant individual relationships between PWV and several measures of hand OA were observed, these associations were largely attributable to the confounding effect of age
Novel quinazoline and acetamide derivatives as safe anti-ulcerogenic agent and anti-ulcerative colitis activity
Two novel quinazoline derivatives named as; 3-[(4-hydroxy-3-methoxy-benzylidene)-amino]-2-p-tolyl3H-quinazolin-4-one
(5) and 2-p-Tolyl-3-[3,4,5-trimethoxy-benzylidene-amino]-3H-quinazolin-4-one
(6) in addition to one acetamide derivative named as 2-(2-Hydroxycarbonylphenylamino)-N-(4-
aminosulphonylphenyl) 11 were synthesized, and evaluated for their anti-ulcerogenic & AntiUlcerative
colitis activities.
All of the three compounds showed curative activity against acetic acid induced ulcer model at a dose
of 50 mg/kg, they produced 65%, 85% & 57.74% curative ratio for compounds 5, 6 & 11 respectively. The
effect of the tested compounds 5, 6 & 11 at dose 50 mg/kg were significantly (P < 0.01) more effective
than dexamesathone (0.1 mg/kg) in reducing all parameters.
Compounds showed curative activity of for peptic ulcer (induced by absolute alcohol (at a dose of 50
mg/kg, it produced Curative of control ulcer 56.00%, 61.70% & 87.1% for compounds 5, 6 & 11 respectively
at dose 50 mg/kg, while the standard drug (Omeprazole 20 mg/kg) produced 33.3%. In both tests, the
activity of our target compounds were higher than the standard drugs used for treatment of peptic ulcer
and ulcerative colitis. No side effects were reported on liver and kidney functions upon prolonged oral
administration of this compounds
Anti-ulcerogenic and anti-ulcerative colitis (UC) activities of seven amines derivatives
The Novel target compounds (CP-1-7) were synthesized and tested at doses up to 1000mg/kg for their entitled activities. They exerted promising results without any behavioral changes and mortality in mice. Therefore, according to the results obtained in our study, it could be categorized as highly safe agents for treating UC since substances possessing LD50 higher than 50mg/kg are considered nontoxic. They also possessed a potent anti-ulcerogenic activity with different potentials. The most effective compound was CP-4, it produced 97.7% ulcer protection of control followed by CP-3, which produced 90.3% protection, while the standard drug ranitidine (100mg/kg) produced 49.2% protection. Compound CP-1 showed lowest activity among the current series, it produced 55.5% protection. The target compounds were significantly more effective than the standard in reducing ulcer index. The anti-ulcerative colitis activity was tested using acetic acid induced colitis model. The curative effect of the tested compounds at a dose of 50mg/kg oral administration on rats showed a potent anti-ulcerative colitis activity with different potentials. They induced a significant decrease in ulcer score, ulcer area, ulcer index and weight/length of the colon specimens.The percent protection of control colitis ranged from 66.8% for CP-7 to 22.3% for CP-5; however the percent protection for dexamesathone (0.1. mg/kg) was 59.3%. The effect of the tested compounds CP-7 and CP-3 at dose 50. mg/kg were significantly more effective than dexamesathone (0.1. mg/kg) in reducing all parameters.Liver functions were not affected as there is no effect on the activity of both AST and ALT in animals that received the compounds, so the compounds didn't reveal hepatotoxic manifestation. Although, the results on kidney functions showed that, CP-1 slightly elevated blood urea concentration and CP-3 & CP-4 slightly elevated serum creatinine; no apparent nephrotoxic manifestations were recorded
Twin Deficits or Distant Cousins? Evidence from India
The twin-deficits theory has intrigued economists and policy-makers alike for the past few decades. In a Keynesian economy, budget deficit increases the absorption of the economy, causes import expansions, and thereby, worsens the trade deficit. It also causes domestic interest rates to rise, domestic currency to appreciate, and thereby, contributes to trade deficits. However, according to the Ricardian Equivalence Hypothesis (REH), rising budget deficits implies higher future tax-liabilities so people would save more and consume less. As a result, an inter-temporal shift between taxes and budget deficits would have no impact on the real interest, or the trade deficit. Thus, the issue of whether the twin-deficits phenomenon holds becomes more of an empirical question, and the recent fiscal expansions to curb recession makes it timely to revisit the phenomenon, especially for the developing countries confronting both the deficits on a chronic basis. To this end, we make a case study of India, using the bounds-testing approach to cointegration and error-correction modeling on monthly and quarterly data over 1998-2009. Our results suggest that the twin-deficits theory holds for India in the short-run (validating the Keynesian channel) but not in the long run (validating the REH)
Novel essential amino acid-sulfanilamide hybrid as safe anti-ulcerogenic agent with anti-helicobacter pylori activity
A novel and safe essential amino acid (Leucine) incorporating sulfanilamide was synthesized, and evaluated for its anti-ulcerogenic activity and in vitro anti-Helicobacter pylori activity. The new molecule showed a dose dependent activity against absolute ethanol-induced ulcer in rats, it produced percent protection of control ulcer by 66.7 at dose 100 mg/kg. In addition it showed a potent anti-Helicobacter pylori activity in vitro against 7 clinically isolated strains. The minimum inhibitory concentration (MIC) ranged from 12.5 to 50 Îźg/ml. The preliminary safety studies and toxicity profile are optimistic and encouraging
Effect of Unilateral Ureteral Ligation on Blood Constituents, Renal Histopathology and Ultrasonography in Dogs
Perceptions on the accessibility of Islamic banking in the UKâChallenges, opportunities and divergence in opinion
This study examines the views of UK-based Muslims, Islamic Scholars and Islamic banking employees on the current state of the latter industry, both in practical terms and as regards engagement with the nationâs large, but often marginalised Islamic community. The British Government has recently championed the Islamic banking sector and committed to supporting it as a means of addressing financial services needs and consolidating Londonâs position as the global centre for Islamic investment. The analysis adds to the substantive literature in two principal ways: (i) by contextualising the evidence via the notions of empowerment, engagement and social justice that underpin both the stateâs attempts to foster growth and the central tenets of Islam; and (ii) by placing comparison of the opinions of key groups at the heart of the investigation. The findings reveal that while progress has been made, UK-based Muslims see several substantive impediments to access, including the complex terminology of Islamic banking products, the lack of internet banking facilities and branch networks as well as a generalised lack of interest in marketing on the part of the institutions. Whilst some coincidence of perception is evident, the views of bankers are shown to be out of line with those of the other parties in a number of key areas. For example, bankers appear to see less potential in the role of the internet as a medium for spreading awareness than do either potential customers or religious scholars. The paper therefore concludes with a call for multi-party Ijtihad and Qiyas (deductive analogy) that will encourage industrial outreach and, in so doing, support long-term growth
Incidence of hip fracture in Saudi Arabia and the development of a FRAX model
Summary
A prospective hospital-based survey in representative regions of Saudi Arabia determined the incidence of fractures at the hip. The hip fracture rates were used to create a FRAXÂŽ model to facilitate fracture risk assessment in Saudi Arabia.
Objective
This paper describes the incidence of hip fracture in the Kingdom of Saudi Arabia that was used to characterize the current and future burden of hip fracture, to develop a country-specific FRAXÂŽ tool for fracture prediction and to compare fracture probabilities with neighbouring countries.
Methods
During a 2-year (2017/2018) prospective survey in 15 hospitals with a defined catchment population, hip fractures in Saudi citizens were prospectively identified from hospital registers. The number of hip fractures and future burden was determined from national demography. Age- and sex-specific incidence of hip fracture and national mortality rates were incorporated into a FRAX model for Saudi Arabia. Fracture probabilities were compared with those from Kuwait and Abu Dhabi.
Results
The incidence of hip fracture applied nationally suggested that the estimated number of hip fractures nationwide in persons over the age of 50 years for 2015 was 2,949 and is predicted to increase nearly sevenfold to 20,328 in 2050. Hip fracture rates were comparable with estimates from Abu Dhabi and Kuwait. By contrast, probabilities of a major osteoporotic fracture or hip fracture from the age of 70 years were much lower than those seen in Abu Dhabi and Kuwait due to higher mortality estimates for Saudi Arabia.
Conclusion
A country-specific FRAX tool for fracture prediction has been developed for Saudi Arabia which is expected to help guide decisions about treatment
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Track A Basic Science
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/138319/1/jia218438.pd
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