Publications by authors named "Bacchus R"

Background Good Samaritan University Hospital (GSUH) has been preliminary approved to become a Level I Trauma Center. The American College of Surgeons (ACS) requires Level I Trauma Centers to have senior surgery residents on the trauma service. To fulfill this requirement, GSUH has established an affiliation with Stony Brook University Hospital, a tertiary care hospital with an Accreditation Council for Graduate Medical Education-approved five-year postgraduate training program in General Surgery, to have senior surgery residents from their training program rotate and provide care to trauma patients beginning in July of 2021.

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This case report highlights an episode of neuroleptic malignant syndrome (NMS) in a forensic psychiatry inpatient unit and how the coronavirus disease (COVID) pandemic, as well as, an atypical presentation of NMS delayed diagnosis and treatment of a patient, which could have been fatal. NMS and atypical NMS manifest typically after the use of anti-psychotics during the first two weeks of initiation of treatment. COVID can mimic many of the initial symptoms of NMS such as changes in mental status, fever, and, at times, dysautonomia.

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Objective: The purpose of this study is to determine primarily the occurrence of left ventricular hypertrophy (LVH) in normotensive Trinidadians.

Design And Methods: Enrollment into the study required participants to have normal blood pressure (≤ 140/90) using the JNC 7 (The Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure) classification, free of type 2 diabetes, as well as no existing LVH. Upon entry into the study, participants were first screened for LVH using a standard 12-lead electrocardiogram (ECG), using the Sokolow-Lyon index and the Cornell index.

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Background: In experimental animals, exposure to uncontrollable stress induces a number of behavioral and biochemical changes that resemble symptoms seen in human depression and other psychiatric conditions. The present study used a yoked design to examine the effects of uncontrollable footshock stress on brain thyroid hormones in male and female rats.

Methods: Animals in one group received 15 trials where footshock could be terminated by pressing a lever (escapable shock).

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The Middle East External Quality Assessment Scheme for Clinical Chemistry has been operating for ten years, during which the number of participants has increased from 32 to 95 in 1990. The success of the Scheme in supporting better health care is reflected in the general improvement in performance of most laboratories. Initially linked to the United Kingdom National External Quality Assessment Scheme, it is anticipated that the Scheme will soon operate independently.

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The modulation of the immune response by interaction of prolactin and cyclosporin has been investigated in a total of 181 subjects, 121 males and 60 females. This study demonstrates a significant difference in the magnitude and fluctuation in prolactin and cyclosporin concentrations between males and females receiving cyclosporin as the single immunosuppressant. Levels of both analytes are lower in the male and show markedly less fluctuation than in the female.

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The fructosamine assay, based on the measurement of the reducing activity in serum at alkaline pH, provides an index of protein glycation. The reducing activity is expressed in equivalents of 1-deoxy-1-morpholinofructose (DMF) by direct comparison with the activity either of this synthetic compound or with a secondary protein standard calibrated against DMF. This study reports the influence of assay timing on the apparent serum fructosamine concentration.

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The establishment and first 7 years' operation of an external quality assessment scheme for clinical chemistry in the Middle East region are described. The scheme utilises specimens distributed previously in the UK, and the performance of participating laboratories is assessed relative to the UK consensus values, taking account of method. Variance Index scoring has been used to quantitate performance, and there has been an improvement in average scores during the operation of the scheme.

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The current HPLC methods of cyclosporin measurement have been reviewed and all aspects assessed. A simple isocratic C-18 reverse phase HPLC method with improved efficiency is described for the routine measurement of cyclosporin in whole blood. An alkaline ether extraction is followed by an acid wash, solvent evaporation and two hexane washes of the reconstituted extract.

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Serum fructosamine was measured in 275 blood donors, in 559 subjects with a normal pregnancy, in 32 gestational diabetics being treated with insulin and 69 being treated by diet only, and in 53 pregnant subjects with established diabetes. In none of the pregnant subgroups did the mean fructosamine concentration exceed that of the donor group. The concentration in normal pregnant subjects showed a modest but significant decrease with gestational age and an increase with maternal age.

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The association process of glucagon receptor binding in purified rat liver plasma membranes and prolonged incubation of the hormone-receptor complex at 30 degrees C did not result in degradation of bound labelled glucagon. In contrast, up to 95% of the non-membrane-bound labelled glucagon was degraded. The rate of spontaneous dissociation of the glucagon-receptor complex was slow, and amounted to about 0.

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A new, simple insulin-receptor-binding assay has been devised. The assay is based on the separation of free and receptor-bound 125I-labeled insulin in 80% ethanol. It was found that the insulin-receptor complex was fully stable at this ethanol concentration, regardless of the source of the receptor employed.

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The HLA-A, -B, -C, -DR, Bf and GLO phenotypes of 109 unrelated Saudi Arab males have been determined. HLA-A and -B antigen frequencies were compared with data reported for European Caucasoids and various Arab populations. Most similarities in antigen frequencies were seen between Saudi Arab and Iraqi populations.

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The Sunnybrook Gallstone Study was a randomized, double-blind, controlled trial of chenodeoxycholic acid treatment over 2 years in 160 patients with radiolucent gallstones. Sixty-four patients received 750 mg daily, 53 received 375 mg daily and 43 received placebo. Total dissolution of gallstones occurred in 10.

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The distribution of properdin factor B (Bf) phenotypes and the gene frequencies were investigated in 918 Saudi Arabs. A high frequency of the 'rare' allele BFS0.7 was observed BfS0.

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This study has found low 24-h urine volumes in British expatriates in Saudi Arabia and suggests the possibility of urate stone formation in spite of the air-conditioned environment in which they were living. Urine volume was shown to be significantly correlated with calcium excretion in both sexes and to urate and sodium in males. Differences in 24-h urine concentrations of some but not all constituents between British-born subjects living in Britain and Saudi Arabia have been demonstrated.

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The prevalence of diabetes mellitus in 1385 males in the Al-Kharj area of Saudi Arabia was studied using the WHO criteria for screening and interpretation of glucose tolerance tests[1]. The prevalence was found to increase with age. No diabetic patients were found in the less than or equal to 24 year age group and only one (0.

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Six normal fasting males received on four separate occasions in random order (1) a placebo tablet followed 60 min later by 200 microgram of TRH intravenously (2) bromocriptine 2.5 mg orally followed by TRH intravenously (3) bromocriptine 2.5 mg orally followed by a placebo injection and (4) placebo tablet followed by placebo injection.

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