| 1. |
- Ahlman, B., et al.
(författare)
-
Intestinal amino acid content in critically ill patients
- 1995
-
Ingår i: JPEN - Journal of Parenteral and Enteral Nutrition. - : American Society for Parenteral & Enteral Nutrition. - 0148-6071 .- 1941-2444. ; 19:4, s. 272-278
-
Tidskriftsartikel (refereegranskat)abstract
- Background: The purpose of the study was to determine the concentrations of free amino acids and the total protein content of the human intestinal mucosa during critical illness. Methods: The free amino acid and protein concentrations in endoscopically obtained biopsy specimens from the duodenum and the distal colonic segments were determined on 19 critically ill patients. The free amino acids were separated by ion exchange chromatography and detected by fluorescence, and the protein content was quantified by the method of Lowry. Results: In general, the typical amino acid pattern of the intestinal mucosa was seen, with very high levels of taurine, aspartate and glutamic acid. The main difference, as compared to a reference series of healthy subjects, was the elevated glutamine concentration of the duodenal mucosa. This amino acid was unaltered in the descending colon and depressed in the rectum. At the same time, the glutamatic acid concentrations were unaltered, suggesting that the degradation of glutamine was not increased in the septic state of the majority of the patients studied. Phenylalanine and the two branched-chain amino acids, valine and leucine, were elevated in the duodenal mucosa, and in the colonic mucosa, methionine and phenylalanine were elevated; otherwise, all the other individual amino acids were unaltered or depressed. Conclusions: The alterations seen in mucosal free amino acid and protein concentrations in connection with critical illness are different in many respects and contrast with the findings seen after starvation or moderate surgical trauma.
|
|
| 2. |
- Angsten, Gertrud, et al.
(författare)
-
Improved outcome in neonatal short bowel syndrome using parenteral fish oil in combination With ω-6/9 Lipid Emulsions
- 2012
-
Ingår i: JPEN - Journal of Parenteral and Enteral Nutrition. - : Wiley. - 0148-6071 .- 1941-2444. ; 36:5, s. 587-595
-
Tidskriftsartikel (refereegranskat)abstract
- Background:Newborn infants with short bowel syndrome (SBS) represent a high risk group of developing intestinal failure-associated liver disease (IFALD) which may be fatal. However, infants have a great capacity for intestinal growth and adaptation if IFALD can be prevented or reversed. A major contributing factor to IFALD may be the soybean oil-based intravenous lipid emulsions used since the introduction of parenteral nutrition (PN) 40 years ago. Methods:This retrospective study compares the outcome in 20 neonates with SBS treated with parenteral fish oil (Omegaven) in combination with omega-6/9 lipid emulsions (ClinOleic) with the outcome in a historical cohort of 18 patients with SBS who received a soybean oil-based intravenous lipid emulsion (Intralipid).Results:Median gestational age was 26 weeks in the treatment group and 35.5 weeks in the historical group. All patients were started on PN containing Intralipid that was switched to ClinOleic/Omegaven in the treatment group at a median age of 39 gestational weeks. In the treatment group, direct bilirubin levels were reversed in all 14 survivors with cholestasis (direct bilirubin >50 umol/). Median time to reversal was 2.9 months. Only 2 patients died of liver failure (10%). In the historical cohort, 6 patients (33%) died of liver failure and only 2 patients showed normalization of bilirubin levels.Conclusions:Parenteral fish oil in combination with omega-6/9 lipid emulsions was associated with improved outcome in premature neonates with SBS. When used instead of traditional soybean-based emulsions, this mixed lipid emulsion may facilitate intestinal adaptation by increasing the IFALD-free period.
|
|
| 3. |
|
|
| 4. |
|
|
| 5. |
|
|
| 6. |
|
|
| 7. |
- Cederholm, T, et al.
(författare)
-
To Create a Consensus on Malnutrition Diagnostic Criteria : A Report From the Global Leadership Initiative on Malnutrition (GLIM) Meeting at the ESPEN Congress 2016
- 2017
-
Ingår i: JPEN - Journal of Parenteral and Enteral Nutrition. - : SAGE PUBLICATIONS INC. - 0148-6071 .- 1941-2444. ; 41:3, s. 311-314
-
Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- During the European Society for Clinical Nutrition and Metabolism (ESPEN) Congress in Copenhagen, Denmark (September 2016), representatives of the 4 largest global parenteral and enteral nutrition (PEN) societies from Europe (ESPEN), the United States (American Society for Parenteral and Enteral Nutrition [ASPEN]), Asia (Parenteral and Enteral Nutrition Society of Asia [PENSA]), and Latin America (Latin American Federation of Parenteral and Enteral Nutrition [FELANPE]) and from national PEN societies around the world met to continue the conversation on how to diagnose malnutrition that started during the Clinical Nutrition Week, Austin, Texas (February 2016). Current thinking on diagnostic approaches was shared; ESPEN suggested a grading approach that could encompass various types of signs, symptoms, and etiologies to support diagnosis. ASPEN emphasized where the parties agree; that is, that the 3 major published approaches (ESPEN, ASPEN-Academy of Nutrition and Dietetics, and Subjective Global Assessment [SGA]) all propose weight loss as a key indicator for malnutrition. FELANPE suggested that the anticipated consensus approach needs to prioritize a diagnostic method that is available for everybody since resources differ globally. PENSA highlighted that body mass index varies by ethnicity/race and that sarcopenia/muscle mass evaluation is important for the diagnosis of malnutrition. A Core Working Committee of the Global Leadership Initiative on Malnutrition has been established (comprising 2 representatives each from the 4 largest PEN societies) that will lead consensus development in collaboration with a larger working group with broad global representation, using e-mail, telephone conferences, and face-to-face meetings during the upcoming ASPEN and ESPEN congresses. Transparency and external input will be sought. Objectives include (1) consensus development around evidence-based criteria for broad application, (2) promotion of global dissemination of the consensus criteria, and (3) seeking adoption by the World Health Organization and the International Classification of Diseases.
|
|
| 8. |
- Compher, Charlene, et al.
(författare)
-
Guidance for assessment of the muscle mass phenotypic criterion for the Global Leadership Initiative on Malnutrition diagnosis of malnutrition
- 2022
-
Ingår i: JPEN - Journal of Parenteral and Enteral Nutrition. - : John Wiley & Sons. - 0148-6071 .- 1941-2444. ; 46:6, s. 1232-1242
-
Tidskriftsartikel (refereegranskat)abstract
- The Global Leadership Initiative on Malnutrition (GLIM) provides consensus criteria for the diagnosis of malnutrition that can be widely applied. The GLIM approach is based on the assessment of three phenotypic (weight loss, low body mass index, and low skeletal muscle mass) and two etiologic (low food intake and presence of disease with systemic inflammation) criteria, with diagnosis confirmed by any combination of one phenotypic and one etiologic criterion fulfilled. Assessment of muscle mass is less commonly performed than other phenotypic malnutrition criteria, and its interpretation may be less straightforward, particularly in settings that lack access to skilled clinical nutrition practitioners and/or to body composition methodologies. In order to promote the widespread assessment of skeletal muscle mass as an integral part of the GLIM diagnosis of malnutrition, the GLIM consortium appointed a working group to provide consensus-based guidance on assessment of skeletal muscle mass. When such methods and skills are available, quantitative assessment of muscle mass should be measured or estimated using dual-energy x-ray absorptiometry, computerized tomography, or bioelectrical impedance analysis. For settings where these resources are not available, then the use of anthropometric measures and physical examination are also endorsed. Validated ethnic- and sex-specific cutoff values for each measurement and tool are recommended when available. Measurement of skeletal muscle function is not advised as surrogate measurement of muscle mass. However, once malnutrition is diagnosed, skeletal muscle function should be investigated as a relevant component of sarcopenia and for complete nutrition assessment of persons with malnutrition.
|
|
| 9. |
|
|
| 10. |
|
|
| 11. |
- Ekelund, Mats, et al.
(författare)
-
Effects of total parenteral nutrition on lipid metabolism in rats
- 1994
-
Ingår i: JPEN. - : Wiley. - 0148-6071. ; 18:6, s. 503-509
-
Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: The pathophysiologic mechanisms behind the development of liver steatosis during total parenteral nutrition (TPN) and the possible relationship to alterations of lipoprotein lipase activities in different tissues are not fully known. It is also unknown whether continuous and discontinuous administration of TPN affect lipid metabolism differently. METHODS: TPN, including 8.4 g of triglycerides per kilogram per day, was given for 10 days to two groups of male Sprague-Dawley rats that received the infusions discontinuously and continuously, respectively. Freely fed rats were used as controls. RESULTS: TPN led to hyperlipidemia and accumulation of triglycerides in the liver. High-density lipoproteins were enriched in triglycerides, whereas high-density lipoprotein cholesterol and phospholipid levels were low. The activities of hepatic lipase were markedly decreased, and lipoprotein lipase activities in adipose tissue and in cardiac muscle were both up-regulated. The increased levels of cholesterol and phospholipids in the serum of TPN animals were more pronounced after discontinuous administration. CONCLUSIONS: TPN including lipids interferes with the normal regulation of lipid metabolism. Although the mechanisms remain obscure, the elevation of lipoprotein lipase activities seems functionally important to accommodate the increased input of triglycerides during TPN. Possibly, the observed alterations in lipase activities may be attributed to a state of hypothyroidism.
|
|
| 12. |
|
|
| 13. |
|
|
| 14. |
|
|
| 15. |
|
|
| 16. |
|
|
| 17. |
- Iresjö, Britt-Marie, 1963, et al.
(författare)
-
Overnight Steady-State Infusions of Parenteral Nutrition on Myosin Heavy Chain Transcripts in Rectus Abdominis Muscle Related to Amino Acid Transporters, Insulin-like Growth Factor 1, and Blood Amino Acids in Patients Aimed at Major Surgery.
- 2019
-
Ingår i: JPEN - Journal of Parenteral and Enteral Nutrition. - : Wiley. - 0148-6071 .- 1941-2444. ; 43:4, s. 497-507
-
Tidskriftsartikel (refereegranskat)abstract
- Evaluation of improvements by nutrition support to severely ill patients requires sensitive methods to demonstrate activation of protein synthesis in various tissues from groups with a limited number of patients to be statistically efficient. This study examines effects of standard parenteral nutrition (PN) on abdominal muscle transcripts of amino acid (AA) transporters, myosin heavy chains (MHCs), and the insulin-like growth factor 1 and its receptor (IGF-1/IGF-1R) in patients aimed at major surgery.Twenty-two randomized patients received steady-state PN (0.16 gN/kg/d, 30 kcal/kg/d) or saline infusions for 12 hours before operation. Blood samples and muscle biopsies were obtained at operation start. Muscle messenger RNA (mRNA) levels of AA transporters (solute carrier family members SNAT2, LAT1, LAT3, LAT4, TAUT, PAT1, CD98), IGF-1, IGF-1R, MHC isoforms (MHC1, MHC2A, MHC2X), and LAT3 protein were quantified and related to concentrations of AA, IGF-1, insulin, and metabolic substrates in blood.Muscle mRNA LAT3, LAT4, IGF-1R, and MHC2A increased by PN infusion, with correlations to specific AA transporters and MHC isoforms (P < .01-.05). TAUT and LAT3 correlated to slow (MHC1) and fast (MHC2A, MHC2X) isoforms (P < .001-.02). Muscle IGF-1 mRNA correlated to plasma essential AAs, whereas IGF-1R mRNA was related to LAT3, MHC2A, and serum IGF-1 (P < .001-.03).The results confirm that short-term preoperative PN activates transcription of AA transporters and myosin isoforms. Thus, combinations of methods on gene transcription and translation of muscle proteins can be applied to define efficient combinations of nutrition and hormones to catabolic patients in preoperative and postoperative settings.
|
|
| 18. |
- Jensen, Gordon L., et al.
(författare)
-
GLIM Criteria for the Diagnosis of Malnutrition : A Consensus Report From the Global Clinical Nutrition Community
- 2019
-
Ingår i: JPEN - Journal of Parenteral and Enteral Nutrition. - : Wiley. - 0148-6071 .- 1941-2444. ; 43:1, s. 32-40
-
Tidskriftsartikel (refereegranskat)abstract
- Background: This initiative aims to build a global consensus around core diagnostic criteria for malnutrition in adults in clinical settings.Methods: The Global Leadership Initiative on Malnutrition (GLIM) was convened by several of the major global clinical nutrition societies. Empirical consensus was reached through a series of face‐to‐face meetings, telephone conferences, and e‐mail communications.Results: A 2‐step approach for the malnutrition diagnosis was selected, that is, first screening to identify at risk status by the use of any validated screening tool, and second, assessment for diagnosis and grading the severity of malnutrition. The malnutrition criteria for consideration were retrieved from existing approaches for screening and assessment. Potential criteria were subjected to a ballot among GLIM participants that selected 3 phenotypic criteria (non‐volitional weight loss, low body mass index, and reduced muscle mass) and 2 etiologic criteria (reduced food intake or assimilation, and inflammation or disease burden). To diagnose malnutrition at least 1 phenotypic criterion and 1 etiologic criterion should be present. Phenotypic metrics for grading severity are proposed. It is recommended that the etiologic criteria be used to guide intervention and anticipated outcomes. The recommended approach supports classification of malnutrition into four etiology‐related diagnosis categories.Conclusions: A consensus scheme for diagnosing malnutrition in adults in clinical settings on a global scale is proposed. Next steps are to secure endorsements from leading nutrition professional societies, to identify overlaps with syndromes like cachexia and sarcopenia, and to promote dissemination, validation studies, and feedback. The construct should be re‐considered every 3–5 years.
|
|
| 19. |
|
|
| 20. |
- Jensen, Gordon L., et al.
(författare)
-
Guidance for assessment of the inflammation etiologic criterion for the GLIM diagnosis of malnutrition : A modified Delphi approach
- 2024
-
Ingår i: JPEN - Journal of Parenteral and Enteral Nutrition. - : John Wiley & Sons. - 0148-6071 .- 1941-2444. ; 48:2, s. 145-154
-
Tidskriftsartikel (refereegranskat)abstract
- BackgroundThe Global Leadership Initiative on Malnutrition (GLIM) approach to malnutrition diagnosis is based on assessment of three phenotypic (weight loss, low body mass index, and reduced skeletal muscle mass) and two etiologic (reduced food intake/assimilation and disease burden/inflammation) criteria, with diagnosis confirmed by fulfillment of any combination of at least one phenotypic and at least one etiologic criterion. The original GLIM description provided limited guidance regarding assessment of inflammation, and this has been a factor impeding further implementation of the GLIM criteria. We now seek to provide practical guidance for assessment of inflammation.MethodsA GLIM-constituted working group with 36 participants developed consensus-based guidance through a modified Delphi review. A multiround review and revision process served to develop seven guidance statements.ResultsThe final round of review was highly favorable, with 99% overall “agree” or “strongly agree” responses. The presence of acute or chronic disease, infection, or injury that is usually associated with inflammatory activity may be used to fulfill the GLIM disease burden/inflammation criterion, without the need for laboratory confirmation. However, we recommend that recognition of underlying medical conditions commonly associated with inflammation be supported by C-reactive protein (CRP) measurements when the contribution of inflammatory components is uncertain. Interpretation of CRP requires that consideration be given to the method, reference values, and units (milligrams per deciliter or milligram per liter) for the clinical laboratory that is being used.ConclusionConfirmation of inflammation should be guided by clinical judgment based on underlying diagnosis or condition, clinical signs, or CRP.
|
|
| 21. |
|
|
| 22. |
- Krog, M, et al.
(författare)
-
An alternative placement of implantable central venous access systems.
- 1989
-
Ingår i: JPEN - Journal of Parenteral and Enteral Nutrition. - : Wiley. - 0148-6071 .- 1941-2444. ; 13:6, s. 666-7
-
Tidskriftsartikel (refereegranskat)abstract
- A modified technique of inserting an implantable venous access system in the inferior epigastric vein is described. This route can be used in cases where the jugular or subclavian veins are unsuitable. After exposure of the inferior epigastric vein in the lower part of the rectus sheath, the catheter is placed in the vein with its tip at the junction to the iliac vein, with the aid of fluoroscopy and x-ray contrast. Protrusion of the tip into the lumen of the iliac vein is avoided. The technique was successful in four of the five patients where an attempt was made to insert the catheter. In the fifth case the vein was too narrow to allow catheterization. In the four cases where the catheter was successfully inserted there were no complications. This technique may allow use of the inferior vena cava for venous access without the high risk of intravenous thrombosis which is inherent with current methods.
|
|
| 23. |
- Ljungqvist, Olle, 1954-
(författare)
-
ERAS-enhanced recovery after surgery : moving evidence-based perioperative care to practice
- 2014
-
Ingår i: JPEN - Journal of Parenteral and Enteral Nutrition. - : Sage Publications. - 0148-6071 .- 1941-2444. ; 38:5, s. 559-566
-
Tidskriftsartikel (refereegranskat)abstract
- ERAS is the acronym for enhanced recovery after surgery, a term often used to describe perioperative care programs that have been shown to improve outcomes after major surgery. This article gives a brief history of the development from fast-track surgery to ERAS. Today, the full meaning of ERAS goes beyond just a protocol for perioperative care with the initiation of a novel multiprofessional, multidisciplinary medical society: the Enhanced Recovery After Surgery Society for Perioperative Care (www. erassociety. org). The ERAS Society is involved in the development of evidence-based guidelines. These guidelines form the basis for an implementation program of the ERAS principles to practice. While ERAS was initially developed for colonic resections, these principles are being used in a range of operations, and there is also a continuous update of care protocols as the fields develop. A key mechanism behind the effectiveness of ERAS is the dampening of the stress responses to the surgical insult combined with the use of treatments that support return of functions that delay recovery in traditional care. The article also gives some insights to why the protocols work and reports the effects of ERAS protocols.
|
|
| 24. |
|
|
| 25. |
- Ljungqvist, Olle, 1954-
(författare)
-
Jonathan E. Rhoads lecture 2011 : insulin resistance and enhanced recovery after surgery
- 2012
-
Ingår i: JPEN - Journal of Parenteral and Enteral Nutrition. - : Sage Publications. - 0148-6071 .- 1941-2444. ; 36:4, s. 389-398
-
Forskningsöversikt (refereegranskat)abstract
- This lecture reviews the current understanding of how insulin resistance, as a marker of the metabolic stress, is involved in recovery after major surgery. Insulin resistance develops as a graded response related to the magnitude of the operation. It lasts for weeks after medium-size surgery and affects all parts of body metabolism. Although hyperglycemia develops, muscle and fat uptake is reduced and other non-insulin-sensitive cells have an increase in glucose uptake as a result of the elevated glucose levels. Reduced glucose uptake and storage in muscle along with loss of lean body mass help explain reduced muscle function that will impair mobilization. The increased uptake of glucose in non-insulin-sensitive cells is involved in the development of several of the most common postoperative complications, including infections and cardiovascular problems. Many of the perioperative treatments in use are outdated, and modern care involves a multimodal approach with several treatments, such as preoperative carbohydrate treatment instead of overnight fasting, continuous epidural anesthesia for postoperative pain care, early feeding, and mobilization, all of which affect insulin by reducing the stress and enhancing recovery. Most of the previous mandatory catabolic responses to surgery can be avoided, resulting in substantially faster recovery and fewer complications. Methods to implement these modern treatments have been developed and used in Europe, resulting in improved care and shorter length of stay.
|
|
| 26. |
- Nilsson, Anders K., 1982, et al.
(författare)
-
Influence of Human Milk and Parenteral Lipid Emulsions on Serum Fatty Acid Profiles in Extremely Preterm Infants.
- 2019
-
Ingår i: JPEN - Journal of Parenteral and Enteral Nutrition. - : Wiley. - 0148-6071 .- 1941-2444. ; 43:1, s. 152-161
-
Tidskriftsartikel (refereegranskat)abstract
- Infants born prematurely are at risk of a deficiency in ω-6 and ω-3 long-chain polyunsaturated fatty acids (LC-PUFAs) arachidonic acid (AA) and docosahexaenoic acid (DHA). We investigated how fatty acids from breast milk and parenteral lipid emulsions shape serum LC-PUFA profiles in extremely preterm infants during early perinatal life.Ninety infants born < 28 weeks gestational age were randomized to receive parenteral lipids with or without the ω-3 LC-PUFAs eicosapentaenoic acid (EPA) and DHA (SMOFlipid: Fresenius Kabi, Uppsala, Sweden, or Clinoleic: Baxter Medical AB, Kista, Sweden, respectively). The fatty acid composition of infant serum phospholipids was determined from birth to postmenstrual age 40 weeks, and in mother's milk total lipids on postnatal day 7. Enteral and parenteral intake of LC-PUFAs was correlated with levels in infant serum.Infants administered parenteral ω-3 LC-PUFAs received 4.4 and 19.3 times more DHA and EPA, respectively, over the first 2 weeks of life. Parenteral EPA but not DHA correlated with levels in infant serum. We found linear relationships between dietary EPA and DHA and infant serum levels in the Clinoleic (Baxter Medical AB) group. The volume of administered SMOFlipid (Fresenius Kabi) was inversely correlated with serum AA, whereas Clinoleic (Baxter Medical AB) inversely correlated with serum EPA and DHA.There appears to be no or low correlation between the amount of DHA administered parenterally and levels measured in serum. Whether this observation reflects serum phospholipid fraction only or truly represents the amount of accreted DHA needs to be investigated. None of the parenteral lipid emulsions satisfactorily maintained high levels of both ω-6 and ω-3 LC-PUFAs in infant serum.
|
|
| 27. |
|
|
| 28. |
|
|
| 29. |
|
|
| 30. |
- Späth, Cornelia, et al.
(författare)
-
Use of concentrated parenteral nutrition solutions is associated with improved nutrient intakes and postnatal growth in very low-birth-weight infants
- 2020
-
Ingår i: JPEN - Journal of Parenteral and Enteral Nutrition. - : John Wiley & Sons. - 0148-6071 .- 1941-2444. ; 44:2, s. 327-336
-
Tidskriftsartikel (refereegranskat)abstract
- Background: Evidence showing the beneficial effects of enhanced parenteral nutrition (PN) to very low-birth-weight (VLBW,<1500 g) infants is accumulating. However, PN composition and its impact on growth outcomes are questioned. This study aimed to investigate the associations between administration of a concentrated PN regime and intakes of energy and macronutrients as well as postnatal growth in VLBW infants. Methods: We compared 2 cohorts of VLBW infants born before (n = 74) and after (n =44) a concentrated PN regime was introduced into clinical use. Daily nutrition and fluid intake during the first 28 postnatal days and all available growth measurements during hospitalization were retrospectively collected from clinical charts. Results: Infants who received concentrated PN compared with original PN had higher parenteral intakes of energy (56 vs 45 kcal/kg/d, P < 0.001), protein (2.6 vs 2.2 g/kg/d, P = 0.008), and fat (1.5 vs 0.7 g/kg/d, P < 0.001) during the first postnatal week. Changes in standard deviation scores for weight and length from birth to postnatal day 28 were more positive in the concentrated PN group (mean [95% CI]; weight change: –0.77 [–1.02 to –0.52] vs –1.29 [–1.33 to –1.05], P = 0.005; length change: –1.01 [–1.36 to –0.65] vs –1.60 [–1.95 to –1.25], P = 0.025). There were no significant differences in fluid intake and infant morbidity between the groups. Conclusion: Our results suggest that concentrated PN is useful and seems to be safe for improving early nutrition and growth in VLBW infants.
|
|
| 31. |
|
|
| 32. |
|
|
| 33. |
|
|
| 34. |
|
|
| 35. |
|
|
| 36. |
- Wernerman, J
(författare)
-
Glutamine to intensive care unit patients
- 2003
-
Ingår i: JPEN. Journal of parenteral and enteral nutrition. - : Wiley. - 0148-6071 .- 1941-2444. ; 27:4, s. 302-303
-
Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
|
|
| 37. |
- Wernerman, J
(författare)
-
What Is Actually Attributable to Glutamine?
- 2017
-
Ingår i: JPEN. Journal of parenteral and enteral nutrition. - : Wiley. - 1941-2444 .- 0148-6071. ; 41:1, s. 9-9
-
Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
|
|
| 38. |
|
|
| 39. |
- Ödlund Olin, Ann, et al.
(författare)
-
Energyenriched hospital food to improve energy intake in elderly patients
- 1996
-
Ingår i: JPEN - Journal of Parenteral and Enteral Nutrition. - : Wiley. - 0148-6071 .- 1941-2444. ; 20:2, s. 93-97
-
Tidskriftsartikel (refereegranskat)abstract
- Background: It was hypothesized that energy intake in hospitalized elderly patients could be improved by increasing the density of energy of the food and that the volume of food actually consumed, even with a higher energy content than the normal, would not change with servings of high energy-dense hospital food. Methods: Thirty-six elderly patients (52 to 96 years) of both sexes, long-term treated at two comparable wards, participated in this study. The patients were given 6 weeks of regular hospital food (RHF, 1670 kcal/d, 7.0 MJ) and 6 weeks of high-energy food (HE, 2520 kcal/d, 10.5 MJ). The volume of food was kept constant. A crossover study design was used. Food intake, energy intake, body weight, and modified functional condition (Norton scale) were measured. Results: Regardless of type of food (RHF or HE) and time of day (lunch or dinner), the food portion size (volume of food) intake was the same, approximately 80% of the portions consumed. HE led to a 40% increase in energy intake (from 25 ± 1 during RHF to 35 ± 2 kcal/kg/d, p <.0001), which resulted in a 3.4% increase in body weight (p <.001) after 3 weeks of HE. Only minimal changes in functional condition were found. The cost of HE was substantially lower (-85%) than any other mean available for improvement of energy intake. Conclusions: A significant increase in energy intake can be achieved by higher energy density in regular hospital food and that HE does not cause a decrease in the volume of the food consumed. These findings suggest that it is the volume of food rather than the energy that limits voluntary energy intake of hospital food in elderly hospitalized patients. (Journal of Parenteral and Enteral Nutrition 20:93–97, 1996)
|
|
| 40. |
- Iresjö, Britt-Marie, 1963, et al.
(författare)
-
Appearance of individual amino acid concentrations in arterial blood during steady-state infusions of different amino acid formulations to ICU patients in support of whole-body protein metabolism
- 2006
-
Ingår i: JPEN. - 0148-6071. ; 30:4, s. 277-85
-
Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Previous work has demonstrated a relationship between arterial amino acid concentrations and uptake of amino acids across peripheral tissues in healthy volunteers, as well as in chronically and acutely ill patients. The aim of the present study was to evaluate whether different amino acid profiles in commercially available amino acid formulations are translated into significantly different arterial amino acid concentrations presumably high enough to promote protein metabolism in intensive care unit (ICU) patients. METHODS: Nonprotein calories (60% glucose: 40% lipid) were simultaneously and constantly infused over 72 hours. Different free amino acid solutions were infused at random to each patient for 24 hours in order to determine the appearance of steady-state arterial concentrations of individual amino acids. Basal metabolic and nutrition states were defined after a 12-hour infusion period with glucose in each patient. Healthy volunteers receiving a standardized oral meal served as reference subjects in measurements of venous amino acid concentrations after normal oral food intake. RESULTS: The sum of all amino acids in arterial plasma increased significantly during steady-state infusions of all the free amino acid solutions vs basal state in ICU patients. Only glutamine, taurine, and tyrosine did not increase at all vs basal state during steady-state infusions of the 3 formulations. Alanine, arginine, citrulline, glycine, histidine, serine, methionine, phenylalanine, valine, and ornithine showed different concentration among the amino acid solutions during infusions. Healthy volunteers had significantly higher overall concentrations of amino acids in both fasted and fed state compared with ICU patients, which indicates that free amino acid solutions remain a limiting component in artificial nutrition to patients to promote arterial amino acid concentrations in the artificially fed state. CONCLUSIONS: It appears important to continue further improvement of composition profile in solutions of free amino acids to promote adequate uptake across organ beds in promotion of protein balance in artificially nourished patients.
|
|
| 41. |
|
|
| 42. |
|
|
