1.Gut Hormones and Appetite Control: A Focus on PYY and GLP-1 as Therapeutic Targets in Obesity.
Akila DE SILVA ; Stephen R BLOOM
Gut and Liver 2012;6(1):10-20
The global obesity epidemic has resulted in significant morbidity and mortality. However, the medical treatment of obesity is limited. Gastric bypass is an effective surgical treatment but carries significant perioperative risks. The gut hormones, peptide tyrosine tyrosine (PYY) and glucagon-like peptide 1 (GLP-1), are elevated following gastric bypass and have been shown to reduce food intake. They may provide new therapeutic targets. This review article provides an overview of the central control of food intake and the role of PYY and GLP-1 in appetite control. Key translational animal and human studies are reviewed.
Animals
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Appetite
;
Eating
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Gastric Bypass
;
Glucagon-Like Peptide 1
;
Humans
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Obesity
;
Peptide Hormones
;
Tyrosine
2.Outcomes of Shoulder Arthroplasty Performed for Postinfectious Arthritis.
Eric Michael PADEGIMAS ; Thema A NICHOLSON ; Stephen SILVA ; Matthew L RAMSEY ; Gerald R WILLIAMS ; Mark D LAZARUS ; Surena NAMDARI
Clinics in Orthopedic Surgery 2018;10(3):344-351
BACKGROUND: The purpose of this study was to evaluate the functional outcomes, infection rate, and complications associated with shoulder arthroplasty for sequelae of prior septic arthritis. METHODS: This is a retrospective cohort study of 17 patients who underwent shoulder arthroplasty for sequelae of septic arthritis. Patients were analyzed for patient-reported outcomes, complications, and reoperations. RESULTS: The 17 patients in this cohort were an average age of 65.4 ± 12.2 years old, were 58.8% male, and had an average body mass index of 27.9 ± 4.1 kg/m2. These patients underwent 14 reverse shoulder arthroplasties (RSAs; 11 after antibiotic spacer placement), one anatomic total shoulder arthroplasty after antibiotic spacer placement, and two hemiarthroplasties (both after antibiotic spacer placement). Two patients underwent reoperation (dislocated RSAs). There were four complications (23.5%): two RSA dislocations, one acromial stress fracture, and one atraumatic rotator cuff tear after hemiarthroplasty. There were no cases of postoperative wound complications or infection. At an average of 4.1 ± 1.8 years of follow-up for all 17 of 17 cases, the average visual analogue scale pain score was 4.6 ± 2.3, average Single Assessment Numeric Evaluation Score was 59.3 ± 23.7, average American Shoulder and Elbow Surgeons Score was 57.6 ± 15.5, and average Simple Shoulder Test was 6.9 ± 2.6 based on “yes” responses. CONCLUSIONS: Shoulder arthroplasty after septic arthritis had inconsistent functional outcomes and high complication rates but no reinfection.
Arthritis, Infectious
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Arthritis, Reactive*
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Arthroplasty*
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Body Mass Index
;
Cohort Studies
;
Dislocations
;
Elbow
;
Follow-Up Studies
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Fractures, Stress
;
Hemiarthroplasty
;
Humans
;
Male
;
Reoperation
;
Retrospective Studies
;
Rotator Cuff
;
Shoulder*
;
Surgeons
;
Tears
;
Wounds and Injuries
3. Antidiabetic effects of galactomannans from Adenanthera pavonina L. in streptozotocin-induced diabetic mice
Icaro PINTO VIEIRA ; Francisca MENDES ; Sabrina DA SILVA ; Raquel PAIM ; Bruno DA SILVA ; Stephen BENJAMIN ; Eridan Orlando FLOREAN ; Maria FLORINDO GUEDES
Asian Pacific Journal of Tropical Medicine 2018;11(2):116-122
Objective: To evaluate the antidiabetic effect of galactomannans extracted from Adenanthera pavonina's L. seeds (GAP) in streptozotocin (STZ) induced diabetic mice. Methods: The preliminary galactomannan yield from Adenanthera pavonina L. plant and extraction products composition were evaluated. Various chemical characterization methods like thin layer chromatography, Fourier transform infrared spectroscopy,
4. Antihyperglycemic effect of Passiflora glandulosa cav. fruit rinds flour in streptozotocin-induced diabetic mice
Erlândia Alves Magalhães QUEIROZ ; Raquel Teixeira Terceiro PAIM ; Sandra Machado LIRA ; José Ytalo Gomes DA SILVA ; Carla Laíne Silva LIMA ; Marcelo Oliveira HOLANDA ; Stephen Rathinaraj BENJAMIN ; Maria Izabel Florindo GUEDES ; Ícaro Gusmão Pinto VIEIRA
Asian Pacific Journal of Tropical Medicine 2018;11(9):510-517
Objective: To investigate the effect of administration of Passiflora glandulosa (P. glandulosa) fruit rinds flour on streptozotocin (STZ)-induced diabetic mice. Methods: The preliminary phytochemical screening and parameters such as centesimal composition and brine shrimp toxicity were evaluated. For in vivo study Swiss female mice were divided into four groups: NC-normal control; DC-diabetic control animals receiving saline; MET-diabetic animals receiving metformin (200 mg/kg); PFRF-diabetic animals receiving P. glandulosa fruit rinds flour (200 mg/kg). All of them were treated for 28 d. STZ was used in a single dose of 120 mg/kg to establish diabetic models. Body weight, water and food intake, fasting blood glucose were measured. Histopathological analysis of pancreas and liver were performed to evaluate STZ-induced tissue injuries. Results: Phytochemical screening showed the presence of flavanones and triterpenoids. The P. glandulosa fruit rinds flour was non-toxic by the brine shrimp test. The fruit rinds flour also reduced the loss of body weight and significantly decreased food intake in the diabetic mice. Additionally, a significant reduction in blood glucose was observed for 15 d and this was maintained on 21 d and 28 d when compared with diabetic mice. Furthermore, the P. glandulosa fruit rinds flour has a favourable effect on the histopathological changes of the pancreas in STZ induced diabetes. Conclusions: It is concluded that P. glandulosa fruit rinds flour is a natural product that contains potent antioxidant compounds and presents good prospects for the improvement of diabetic mellitus by reducing serum glucose levels.