Publications by authors named "Nachum Vaisman"

Background: Chronic pain is prevalent but difficult to treat in patients undergoing hemodialysis (HD). Effective and safe analgesics are limited in this patient population. Our aim in this feasibility study was to evaluate the safety of sublingual oil based medical cannabis for pain management in patients undergoing HD.

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Thyroid hormones heavily impact energy expenditure, body mass, and body composition. Their role in the state of exogenous subclinical hyperthyroidism in differentiated thyroid carcinoma (DTC) patients, however, is less well defined. The first aim of this study was to assess changes in body weight, body composition, resting energy expenditure (REE), respiratory quotient (RQ), and metabolic parameters in female DTC patients, starting from the phase of a euthyroid state before total thyroidectomy through the subsequent year after thyrotropin (TSH) suppression.

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Osteoporosis is a systemic skeletal disease that is characterized by reduced bone mass, deterioration of bone tissue and skeletal fragility. The purpose of the current study was to determine whether asymmetrical femur bone mineral density (BMD) is associated with asymmetrical gait and standing. We compared measures of gait and standing asymmetry in subjects with (n=38) and without (n=11) significant left-right differences in BMD.

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Normal brain cells depend on glucose metabolism, yet they have the flexibility to switch to the usage of ketone bodies during caloric restriction. In contrast, tumor cells lack genomic and metabolic flexibility and are largely dependent on glucose. Ketogenic-diet (KD) was suggested as a therapeutic option for malignant brain cancer.

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Consumption of polyphenol-rich food and food ingredient such as grape and grape products improved various cardiovascular parameters. In this study, we investigate the effect of dietary daily consumption of red grape cell powder (RGC) on blood pressure (BP) and flow-mediated dilatation (FMD) as well as on oxidative stress in 50 subjects with prehypertension and mild hypertension. The subjects were randomized into groups that consumed 200, 400 mg RGC or placebo daily for 12 weeks.

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Calcium supplementation is a widely recognized strategy for achieving adequate calcium intake. We designed this blinded, randomized, crossover interventional trial to compare the bioavailability of a new stable synthetic amorphous calcium carbonate (ACC) with that of crystalline calcium carbonate (CCC) using the dual stable isotope technique. The study was conducted in the Unit of Clinical Nutrition, Tel Aviv Sourasky Medical Center, Israel.

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Aim: To investigate the diet of pouch patients compared to healthy controls, and to correlate pouch patients' diet with disease behavior.

Methods: Pouch patients were recruited and prospectively followed-up at the Comprehensive Pouch Clinic at the Tel Aviv Sourasky Medical Center. Pouch behavior was determined based on clinical, endoscopic and histological criteria.

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Our objective was to describe a group of ALS patients who underwent percutaneous endoscopic gastrostomy (PEG) insertion, with emphasis on the respiratory function, by comparing patients with forced vital capacity (FVC) > 30% versus FVC ≤ 30%, and the effect of respiratory dysfunction on the perioperative complication rate and survival. Thirty consecutive ALS patients in whom FVC status was known underwent PEG insertion at our centre. Twenty of them had FVC > 30% (50.

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Unlabelled: The goal of the present study was to examine the relationships of depression, anxiety and stress with bone mineral density (BMD). We hypothesized negative relations between those mood variables and BMD in three assessed areas. The study showed association between depression and decreased BMD.

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Levan is a commonly used dietary fiber of the fructans group. Its impact on health remains undetermined. This double blind controlled study aimed to investigate the effect of 8 weeks' daily consumption of 500 mL of natural orange juice enriched with 11.

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Article Synopsis
  • The study investigated how tumor load affects resting energy expenditure (REE) in pancreatic cancer patients, taking into account their daily caloric intake and body composition.
  • It involved 45 pancreatic cancer patients and 75 healthy controls, measuring REE through indirect calorimetry and assessing body composition and energy intake through various methods.
  • The findings showed that pancreatic cancer patients had significantly lower body mass index, lean body mass, body fat percentage, and energy intake compared to controls, but their REE was not higher than normal levels, suggesting that reduced energy intake may explain lower REE in these patients.
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We investigated the effect of a mixture of long-chain fructo-oligosaccharides, galacto-oligosaccharides and acidic oligosaccharides on the number and consistency of stools and on immune system biomarkers in 104 supplemented and non-supplemented subjects (aged 9-24 months) with acute diarrhea. Interleukin-1 (IL-1), IL-1RA, IL-6, IL-8, IL-10, TNF-α and sIL-2R cytokine levels were determined. The significant decrease in number of stools and increase in stool consistency in the supplemented group was of little clinical relevance.

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Background: Cognitive disturbances are relatively common in patients with liver disease. High protein load precipitates hepatic encephalopathy in cirrhotic patients. Minimal hepatic encephalopathy (MHE) is a prevalent neurocognitive complication of cirrhosis.

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Background And Aims: Assess longer-term (12 weeks) effects of a diabetes-specific feed on postprandial glucose response, glycaemic control (HbA1c), lipid profile, (pre)-albumin, clinical course and tolerance in diabetic patients.

Methods: In this randomized, controlled, double-blind, parallel group study 25 type 2 diabetic patients on tube feeding were included. Patients received a soy-protein based, multi-fibre diabetes-specific feed or isocaloric, fibre-containing standard feed for 12 weeks, while continuing on their anti-diabetic medication.

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Phosphatidylserine (PS) extracted from bovine brain differs from transphosphatidylated soybean lecithin PS (SB-PS) in its n-3 long-chain polyunsaturated fatty acid (LC-PUFA) content. Both, however, were suggested to affect cognitive performance. We compared the effect of chronic administration of a novel n-3 LC-PUFA PS conjugates (n-3 PS) versus SB-PS, fish oil (FO), SB-PS+FO, or control oil in middle-aged rats, on brain fatty acids composition and performance in behavioral tasks.

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Post-pyloric feeding.

World J Gastroenterol

March 2009

Postpyloric feeding is an important and promising alternative to parenteral nutrition. The indications for this kind of feeding are increasing and include a variety of clinical conditions, such as gastroparesis, acute pancreatitis, gastric outlet stenosis, hyperemesis (including gravida), recurrent aspiration, tracheoesophageal fistula and stenosis in gastroenterostomy. This review discusses the differences between pre- and postpyloric feeding, indications and contraindications, advantages and disadvantages, and provides an overview of the techniques of placement of various postpyloric devices.

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Objective: To study the metabolic parameters which may affect the excessive weight of treated and untreated patients with Laron Syndrome.

Design: Body composition, daily caloric intake and resting energy expenditure (REE), when possible, were measured for each patient. Caloric intake was calculated based on 7-day food records, REE was measured by indirect calorimetry and body composition was determined by dual energy X-ray absorptiometry (DEXA).

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Background And Aims: Nutritional status is a prognostic factor for survival in amyotrophic lateral sclerosis (ALS) patients. We investigated the contribution of some of the components contributing to resting energy expenditure (REE) in order to determine whether potentially higher energy needs should be considered for these patients.

Methods: Thirty three ALS patients and 33 age- and gender-matched healthy controls participated.

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Purpose: To assess the efficacy of ketogenic diet (KD) in adults with refractory epilepsy.

Methods: Eligible subjects were 18-45 years old with at least two monthly focal seizures (with or without secondary generalization) documented by 8 weeks' follow-up. Classic form of KD treatment (90% fat) was planned for 12 weeks: daily seizure diaries were kept and measurements of the urinary ketones were recorded.

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Background: Increasing evidence supports n-3 fatty acid (FA) supplementation for patients with psychiatric disorders, such as attention deficit hyperactivity disorder. However, the exact metabolic fate of dietary eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) on different glyceride carriers remains unclear.

Objective: We investigated whether conjugation of EPA and DHA to phospholipid (PL-n-3) or to triacylglycerol (fish oil; FO) affects their incorporation in blood compartments and influences executive functioning.

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Aim: To evaluate the effect of a short-term sibutramine intake on energy expenditure and on physiological responses during rest, submaximal exercise and maximal exercise in obese women.

Methods: Fifteen healthy obese female volunteers were randomly assigned to either a placebo (n = 6 - control) or sibutramine group (n = 9 - experimental) under double-blind conditions. Each subject was tested under resting conditions and then performed submaximal and maximal exercise tests.

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Background & Aims: Circulating carotenoid levels decrease progressively in patients receiving long-term enteral tube feeding with carotenoid-free formulas. Low dietary intake and low blood levels of carotenoids are associated with a higher risk of morbidity and mortality from chronic diseases. The aim of this study was to examine the effects of a low dose carotenoid mixture (3-mg/1500kcal) for 3 months on serum carotenoid levels and oxidative stress in patients receiving long-term enteral nutrition as the sole source of nutrition.

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Objective: Undernutrition has been reported in 65-75% of patients with Crohn's disease. The present study aimed at identifying the relative contribution of malnutrition-causing factors in patients with Crohn's disease in remission.

Methods: Sixteen patients with Crohn's disease (age 19-57 y) in remission (Crohn's Activity Disease Index < 150) were included in the study.

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Background & Aim: Gastric emptying is determined by food consistency, pH, osmolality, lipid and calorie content as well as the presence of different nutrients in the duodenal lumen. Control of gastric emptying is essential for ensuring optimal digestion. The present study tested the hypothesis that due to its different precipitation properties, gastric emptying of camel's milk may be quicker than that of bovine's milk with the same caloric and fat content.

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Background: It was suggested that acute ingestion of small amounts of fructose can improve glucose homeostasis.

Aim: To study the effect of a long-term tri-daily supplementation of catalytic amounts of fructose on glucose tolerance of subjects with type 2 diabetes (NIDDM).

Methods: A double-blind, placebo-controlled study.

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