ABSTRACT
Using data from the US Census Bureau's Household Pulse Survey, we analyzed the likelihood of loss of health insurance and enrollment into new health coverage during the early months of the COVID-19 pandemic. Loss of employment was associated with a significant increase in the likelihood of loss of health insurance and, specifically, an increase in the likelihood of employer-sponsored health insurance. However, individuals in Medicaid expansion states experienced a lower likelihood of loss of health insurance compared with individuals in nonexpansion states. At the same time, there was a statistically significant increase in Medicaid enrollment in expansion states, by 3.2 percentage points. Reemployment or acquiring employment was associated with a gain in health insurance coverage. During an economic downturn, eligibility, and coverage gaps leave many without affordable coverage options, and the pandemic will likely bring renewed attention to gaps in Medicaid coverage in nonexpansion states.
ABSTRACT
Highly homogeneous low-dose (50 µg) tablets were produced incorporating perfectly free-flowing granules prepared by a fully integrated Continuous Manufacturing (CM) line. The adopted CM equipment consisted of a Twin-Screw Wet Granulator (TSWG), a Continuous Fluid Bed Dryer (CFBD) and a Continuous Sieving (CS) unit. Throughout the experiments a pre-blend of lactose-monohydrate and corn starch was gravimetrically dosed with 1 kg/h into the TSWG, where they were successfully granulated with the drug containing water-based PVPK30 solution. The wet mass was subsequently dried in the CFBD on a vibratory conveyor belt and finally sieved in the milling unit. Granule production efficiency was maximized by determining the minimal Liquid-to-Solid (L/S) ratio (0.11). Design of Experiments (DoE) were carried out in order to evaluate the influence of the drying process parameters of the CFBD on the Loss-on-Drying (LOD) results. The manufactured granules were compressed into tablets by an industrial tablet rotary press with excellent API homogeneity (RSD < 3%). Significant scale-up was realized with the CM line by increasing the throughput rate to 10 kg/h. The manufactured granules yielded very similar results to the previous small-scale granulation runs. API homogeneity was demonstrated (RSD < 2%) with Blend Uniformity Analysis (BUA). The efficiency of TSWG granulation was compared to High-Shear Granulation (HSG) with the same L/S ratio. The final results have demonstrated that both the liquid distribution and more importantly API homogeneity was better in case of the TSWG granulation (RSD 1.3% vs. 4.5%).
Subject(s)
Excipients , Technology, Pharmaceutical , Drug Compounding , Particle Size , Powders , Tablets , TemperatureABSTRACT
OBJECTIVE: To determine the safety, clinical outcome, and fracture rate of femoropopliteal interventions using 4F stents. METHODS: Between January 2010 and December 2011, 112 symptomatic patients were treated by stent implantation. Ten patients were lost to follow up; therefore, 102 patients (62 men; mean age 66.4 ± 10.1 years) were retrospectively analyzed. The indication for femoropopliteal revascularization was severe claudication (Rutherford-Becker score = 3) in 63 (62%) patients and chronic critical limb ischemia (Rutherford-Becker score = 4-6) in 39 (38%). Follow up included palpation of peripheral pulses and measurement of ankle brachial index. In patients with suspected in-stent restenosis duplex ultrasonography was performed. In 2013, patients were asked to return for a fluoroscopic examination of the stents. RESULTS: 114 lesions (Trans-Atlantic InterSociety Consensus-C and D, n = 45) were treated with 119 stents (Astron Pulsar, n = 42; Pulsar-18, n = 77). Lesions were long (≥100 mm) in 49 cases and heavily calcified in 35. Stents were long (≥120 mm) in 46 cases. Ten stents were partially overlapped. The technical and clinical success rates were 100%. Two puncture related complications were noted, neither of which required surgical repair. Eleven patients died (myocardial infarction, n = 4; stroke, n = 2; cancer, n = 5) and nine patients underwent major amputation (above knee, n = 4). The primary patency rate was 83% at 6 months and 80% at 12 months. The primary assisted patency rate was 97% at 6 months and 94% at 12 months. The secondary patency rate was 86% at 6 months and 85% at 12 months. The prevalence of fractures was 26% (type III and IV, 10%) after an average follow up of 25 months. CONCLUSION: Femoropopliteal stenting using a 4F compatible delivery system can be accomplished with a low complication rate, acceptable fracture rate, and with similar 12 month patency and revascularization rates as their 6F counterparts.
Subject(s)
Endovascular Procedures/instrumentation , Femoral Artery , Intermittent Claudication/therapy , Ischemia/therapy , Peripheral Arterial Disease/therapy , Popliteal Artery , Stents , Vascular Access Devices , Vascular Calcification/therapy , Adult , Aged , Aged, 80 and over , Amputation, Surgical , Ankle Brachial Index , Constriction, Pathologic , Critical Illness , Endovascular Procedures/adverse effects , Female , Femoral Artery/diagnostic imaging , Femoral Artery/physiopathology , Humans , Intermittent Claudication/diagnosis , Intermittent Claudication/physiopathology , Ischemia/diagnosis , Ischemia/physiopathology , Limb Salvage , Male , Middle Aged , Peripheral Arterial Disease/diagnosis , Peripheral Arterial Disease/physiopathology , Popliteal Artery/diagnostic imaging , Popliteal Artery/physiopathology , Prosthesis Design , Prosthesis Failure , Recurrence , Retrospective Studies , Severity of Illness Index , Time Factors , Treatment Outcome , Ultrasonography, Doppler, Duplex , Vascular Calcification/diagnosis , Vascular Calcification/physiopathology , Vascular PatencySubject(s)
Dermatitis, Contact/complications , Rosacea/complications , Female , Humans , Male , Middle AgedABSTRACT
Controlling energy homeostasis involves modulating the desire to eat and regulating energy expenditure. The controlling machinery includes a complex interplay of hormones secreted at various peripheral endocrine endpoints, such as the gastrointestinal tract, the adipose tissue, thyroid gland and thyroid hormone-exporting organs, the ovary and the pancreas, and, last but not least, the brain itself. The peripheral hormones that are the focus of the present review (ghrelin, leptin, thyroid hormones, oestrogen and insulin) play integrated regulatory roles in and provide feedback information on the nutritional and energetic status of the body. As peripheral signals, these hormones modulate central pathways in the brain, including the hypothalamus, to influence food intake, energy expenditure and to maintain energy homeostasis. Since the growth of the literature on the role of various hormones in the regulation of energy homeostasis shows a remarkable and dynamic expansion, it is now becoming increasingly difficult to understand the individual and interactive roles of hormonal mechanisms in their true complexity. Therefore, our goal is to review, in the context of general physiology, the roles of the five best-known peripheral trophic hormones (ghrelin, leptin, thyroid hormones, oestrogen and insulin, respectively) and discuss their interactions in the hypothalamic regulation of food intake.
Subject(s)
Appetite Regulation , Eating/physiology , Energy Intake/physiology , Hormones/physiology , Hypothalamus/physiology , Estrogens/physiology , Female , Ghrelin/physiology , Humans , Insulin/physiology , Leptin/physiology , Thyroid Hormones/physiologyABSTRACT
A 47-year-old woman with family history of autosomal-dominant polycystic kidney disease (ADPKD), who underwent living-donor kidney transplantation in 2000, presented with recurrent edema, hyperreninemia, and hyperaldosteronism. Since 2002, her antihypertensive therapy comprised ramipril and spironolactone. The post-transplantation kidney function was stable. Based on the clinical picture and reports of renin secretion by renal cysts in ADPKD, we performed a trial of aliskiren therapy (300 mg/day). The patient showed excellent blood pressure control and reduction of edema, with aldosterone levels normalizing within 2 months. This is a novel report of aliskiren therapy for treatment of edema, hyperreninemia, and hyperaldosteronism in ADPKD.
Subject(s)
Amides/therapeutic use , Fumarates/therapeutic use , Hyperaldosteronism/drug therapy , Hyperaldosteronism/etiology , Polycystic Kidney, Autosomal Dominant/blood , Polycystic Kidney, Autosomal Dominant/complications , Renin/blood , Female , Humans , Middle Aged , Recurrence , Remission InductionSubject(s)
Adenocarcinoma/diagnostic imaging , Rectal Neoplasms/diagnostic imaging , Tomography, Emission-Computed , Adenocarcinoma/drug therapy , Adenocarcinoma/radiotherapy , Combined Modality Therapy , Female , Fluorodeoxyglucose F18 , Humans , Male , Neoadjuvant Therapy , Neoplasm Staging , Radiopharmaceuticals , Rectal Neoplasms/drug therapy , Rectal Neoplasms/pathology , Rectal Neoplasms/radiotherapyABSTRACT
BACKGROUND: Standardization of total mesorectal excision (TME) had a great impact on decreasing local recurrence rates for the treatment of rectal cancer. However, exact numbers and distribution of lymph nodes (LN) along the mesorectum remains controversial with some studies suggesting that few LNs are present in the distal third of the mesorectum. METHODS: Eighteen fresh cadavers without a history of rectal cancer were studied. The rectum was removed by TME and then was divided into right lateral, posterior and left lateral sides, which were further subdivided into 3 levels (upper, middle and lower). A pathologist determined the number and sizes of the LNs in each of the nine areas, b linded to their anatomical origin. RESULTS: Overall, the mesorectum had a mean of 5.7 LNs (SD=3.7) and on average each LN had a maximum diameter of 3.0 mm (SD=2.7). There was no association between the mean number or size of LNs with gender, BMI, or age. There was a significantly higher prevalence of LNs in the posterior location (2.8 per mesorectum) than in the two lateral locations (0.8 and 1.2 per mesorectum; p=0.02). The distribution of LNs in the three levels of the rectum was not significant. CONCLUSIONS: The distribution of LNs reinforces the fact that TME should always include the distal third of the mesorectum. Care must be taken to not violate the posterior aspect of the mesorectum.
Subject(s)
Lymph Nodes/anatomy & histology , Rectum/anatomy & histology , Cadaver , Dissection , Humans , Lymphatic Metastasis/pathology , Rectal Neoplasms/pathology , Rectal Neoplasms/surgeryABSTRACT
Rectal bleeding following colorectal anastomosis is common but usually self-limited. Continuous hemorrhage is rare, and when it occurs, often requires further treatment. The most frequently used strategies for treatment of stapled anastomotic hemorrhage are clinical observation with or without blood transfusion, rectal packing, angiographic identification of the bleeding site with vasopressin infusion or embolization, and endoscopic eletrocoagulation. We report the case of a 49-year-old man with uncomplicated diverticular disease who was treated by laparoscopic sigmoidectomy, with double-stapled colorectal anastomosis. Six hours later, the patient presented intense rectal bleeding and was taken to the operation room for urgent colonoscopic examination. After complete removal of blood clots inside the rectum, a bleed localized at the anastomotic site was identified and submucosal peri-anastomotic injection of 10 ml adrenaline (1:200 000) in saline was performed with immediate bleeding control.
Subject(s)
Anastomosis, Surgical/adverse effects , Colon/surgery , Postoperative Hemorrhage/surgery , Rectum/surgery , Surgical Stapling/adverse effects , Anastomosis, Surgical/instrumentation , Diverticulum/surgery , Endoscopy, Digestive System , Humans , Male , Middle AgedABSTRACT
BACKGROUND: Rubber band ligation (RBL) is probably the most commonly performed nonsurgical therapy for hemorrhoidal disease. Infrared coagulation (IRC) is one of the most recent advances based on the use of "heat". Recent studies have demonstrated similar efficacy for both modalities. This prospective randomized crossover trial compared IRC and RBL for pain, complications, effectiveness, and patient satisfaction and preference in the treatment of internal hemorrhoids (IH). METHODS: Patients were randomized to receive either RBL (Group A) or IRC (Group B) for treatment of the first hemorrhoid; in a second procedure two weeks later, patients underwent the other procedure on the second hemorrhoid, thereby serving as their own control. The procedure preferred by the patient was employed two weeks later for the third hemorrhoid. Post-treatment pain was evaluated on a visual analog scale and on the basis of the percentage of patients requiring analgesics. Bleeding and early outcome of treatment were also recorded, together with the patient's satisfaction. RESULTS: A total of 94 patients were included in this study (47 patients in each group). At 30 minutes and 6 hours after treatment, pain scores were significantly higher in patients treated with RBL than in those treated with IRC (p<0.01). There was no significant difference in pain scores between the two procedures immediately and 24 hours after the procedures (p<0.05). After 72 hours and one week, the pain scores for RBL and IRC were similar. The percentage of patients using analgesics was significantly higher in RBL group than in IRC group at 6 hours (29.6% vs. 19.2%, respectively; p<0.05) and 24 hours (22.5% vs. 13.5%, respectively; p<0.05) after treatment. However, significant differences were not noted at 72 hours (12.7% vs. 6.4%; p<0.05) and one week (5.6% vs. 7.1%; p>0.05) after the procedures. There were significantly higher incidences of bleeding immediately, 6 hours, and 24 hours after RBL compared to IRC (immediate: 32.4% vs. 4.3%; 6 hours: 13.4% vs. 3.6%, 24 hours: 26.8% vs. 10.2%, respectively; p<0.01). However, there were no significant differences noted regarding the incidence of bleeding between the two groups at 72 hours. Complications were more likely after RBL than IRC, however this difference was not significant (p>0.05). Overall, 91 patients (96.8%) were successfully treated and 93 patients (99%) were very satisfied with the treatment. In the third treatment session, 50% of patients selected RBL and 50% chose IRC. CONCLUSIONS: Both RBL and IRC were well-accepted and highly efficacious methods for the treatment of IH; in addition, both procedures were associated with relatively minor complications. However, RBL was associated with more pain than IRC in the 24-hour postoperative period.
Subject(s)
Hemorrhoids/surgery , Light Coagulation , Adult , Cross-Over Studies , Female , Humans , Ligation/adverse effects , Light Coagulation/adverse effects , Male , Middle Aged , Pain, Postoperative/etiology , Patient Satisfaction , Prospective Studies , Treatment OutcomeABSTRACT
OBJECTIVE: To prospectively compare immediate postoperative results of the surgical treatment of haemorrhoidal disease (HD) by Milligan-Morgan technique using either the CO(2) laser or cold scalpel. METHODS: Forty patients with grade III/IV HD were prospectively randomized to undergo surgical treatment (Milligan-Morgan) using either the CO(2) laser (group A) or the cold scalpel method (group B). Data were compared regarding postoperative pain, complications, healing time, return to normal activity and patient satisfaction. Patients were blinded to treatment method until the completion of the study. Postoperative outcomes were assessed by patient questionnaire and outpatient follow-up visits. Pain was assessed by Visual Analogue Scale and analgesic consumption. RESULTS: Twenty patients were randomized into each group and were comparable relative to mean age, gender and grade of HD. There were no statistically significant differences regarding postoperative pain measured (P =0.17) or consumption of oral (P = 0.741) and parenteral analgesics (P = 0.18) between the two groups. Mean pain score at the first bowel movement was significantly higher in group A (P = 0.035), although the use of analgesics was similar in both the groups. There were no differences regarding complications, mean healing time, return to normal activities and patient satisfaction. CONCLUSION: There were no differences in the immediate results after Milligan-Morgan haemorrhoidectomy using either the CO(2) laser or cold scalpel regarding postoperative pain, complications, healing time, return to normal activities or patient satisfaction.
Subject(s)
Digestive System Surgical Procedures/instrumentation , Digestive System Surgical Procedures/methods , Hemorrhoids/surgery , Pain, Postoperative/etiology , Female , Hemorrhoids/pathology , Humans , Laser Therapy/methods , Male , Middle Aged , Pain, Postoperative/diagnosis , Patient Satisfaction , Prospective Studies , Surgical InstrumentsABSTRACT
The etiology of colorectal cancer (CRC) involves the interaction of cell molecular changes and environmental factors, with a great emphasis on diet components. But the paths connecting lifestyle characteristicas and the colorectal carcinogenesis remain unclear. Several risk factors are commonly found in western diets, such as high concentrations of fat and animal protein, as well as low amounts of fiber, fruits and vegetables. A large number of experimental studies have found a counteractive effect of fiber on neoplasia induction, especially in relation to fermentable fiber (wheat bran and cellulose). Epidemiological correlation studies have also indicated that a greater ingestion of vegetables, fruit, cereal and seeds is associated to a lower risk for colorectal neoplasia. Moreover, beneficial properties of fiber (especially from vegetable sources) were documented in more than half of case-control studies. Nevertheless, recent epidemiological data from longitudinal and randomized trials tended not to support this influence. Future research should evaluate what sources of fiber provide effective anti-neoplasic protection, carrying out interventional studies with specific fibers for longer periods. Red meat, processed meats, and perhaps refines carbohydrates are also implicated in CRC risk. Recommendantions to decrease red meat intake are well accepted, although the total amount and composition of specific fatty acids may have distinct roles in this setting. Current evidence favors the substitution of long and medium-chain fatty acids and arachidonic acid for short-chain fatty acids and eicosapentaenoic acid. Excess boy weight and excess energy intake inducing hyperinsulinemia have been also associated to CRC, as well as personal habits such as physical inactivy, high alcohol consumption, smoking and low consumption of folate and methionine. Thus, current recommendations for decreasing the risk of CRC include dietary measures such as increased plant food intake; the consumption of whole grains, vegetables and fruits; and reduced red meat intake.
Subject(s)
Colorectal Neoplasms/etiology , Colorectal Neoplasms/prevention & control , Diet , Dietary Fats/adverse effects , Dietary Fiber , Epidemiologic Studies , Humans , Risk FactorsABSTRACT
Postparturient sow losses caused by Clostridium difficile have not been reported in the veterinary literature. Recently in Croatia, in a large outdoor production unit with suboptimal environmental conditions, a sudden increase in postparturient sow mortality was diagnosed. After postpartal application of enrofloxacine to postparturient mastitis metritis agalactia (MMA) suffering sows, diarrhea, respiratory distress, and mortality of these sows were recorded. While 13% of MMA suffering and treated sows died, only 0.4% of the non-treated (no MMA suffering) sows died postpartum. Gross pathology revealed mesocolonic edema, hydrothorax, and ascites. Microscopic examination showed scattered foci of suppuration in the colonic lamina propria and accumulation of neutrophils and fibrin on colonic mucosa. Anaerobic cultures of the colon yielded heavy growth of C. difficile. Enzyme immunoassay revealed C. difficile toxins A and B. C. difficile infections of postparturient MMA suffering sows may be associated with environmental stress, the application of antibiotics, or both. C. difficile infections are an impending danger in Eastern Europe and does not only raise animal welfare issues, but seriously inflict the economical well being of outdoor production units.
Subject(s)
Clostridioides difficile , Clostridium Infections/veterinary , Parturition , Swine Diseases/microbiology , Swine Diseases/mortality , Animals , Ascites/veterinary , Clostridioides difficile/isolation & purification , Clostridium Infections/mortality , Clostridium Infections/pathology , Colon/microbiology , Colon/pathology , Edema/veterinary , Europe, Eastern , Female , Hydrothorax/veterinary , Intestinal Mucosa/pathology , Intestines/pathology , Neutrophils , Pregnancy , Swine , Swine Diseases/pathologyABSTRACT
Inflammatory Bowel Diseases--ulcerative colitis and Crohn's disease--are chronic gastrointestinal inflammatory diseases of unknown etiology. Decreased oral intake, malabsorption, accelerated nutrient losses, increased requirements, and drug-nutrient interactions cause nutritional and functional deficiencies that require proper correction by nutritional therapy. The goals of the different forms of nutritional therapy are to correct nutritional disturbances and to modulate inflammatory response, thus influencing disease activity. Nutritional intervention may improve outcome in certain individuals; however, because of the costs and complications of such therapy, careful selection is warranted. Total parenteral nutrition has been used to correct and prevent nutritional disturbances and to promote bowel rest during active disease, mainly in cases of digestive fistulae with a high output. Its use should be reserved for patients who cannot tolerate enteral nutrition. Enteral nutrition is effective in inducing clinical remission of disease in adults and promoting growth in children. Recent research has focused on the use of specific nutrients as primary treatment agents. Although some reports have indicated that glutamine, short-chain fatty acids, antioxidants and immunonutrition with omega-3 fatty acids are an important therapeutic alternative in the management of inflammatory bowel diseases, the beneficial reported effects have yet to be translated into the clinical practice. The real efficacy of these nutrients still need further evaluation through prospective and randomized trials.
Subject(s)
Inflammatory Bowel Diseases/therapy , Nutrition Assessment , Colitis, Ulcerative/complications , Colitis, Ulcerative/therapy , Crohn Disease/complications , Crohn Disease/therapy , Deficiency Diseases/diagnosis , Deficiency Diseases/etiology , Enteral Nutrition/methods , Fatty Acids/therapeutic use , Fatty Acids, Omega-3/therapeutic use , Glutamine/therapeutic use , Humans , Inflammatory Bowel Diseases/complications , Inflammatory Bowel Diseases/drug therapy , Malabsorption Syndromes/diagnosis , Malabsorption Syndromes/etiology , Nutrition Disorders/diagnosis , Nutrition Disorders/etiology , Parenteral Nutrition, Total/methodsABSTRACT
Many patients undergoing pharmacological stress echocardiography for assessing symptoms suggestive of coronary artery disease are found to have a normal test. This study was performed to evaluate whether asthma symptoms simulate angina pectoris. A total 41 consecutive patients who had a negative pharmacological stress echocardiography and had been evaluated for angina pectoris were studied. Patients with previously known coronary artery disease or obstructive lung disease were excluded. Lung function testing was performed and the authors proceeded either with the administration of a bronchodilator or with methacholine challenge testing. A questionnaire was applied to assess the symptoms dyspnoea, chest tightness and substernal burning at the end of the challenge test. In addition, patients were asked if they were experiencing those symptoms that made them seek medical attention. From the 41 patients tested, 26 patients showed a significant bronchial hyperreactivity (mean +/- SD provocative concentration causing a 20% fall in the forced expiratory volume in one second 5.93 +/- 4.50 mg x mL(-1)). A total of 20 patients confirmed having those symptoms that led to cardiac evaluation. It was concluded that symptoms suggestive of angina pectoris might represent bronchial asthma. This should be considered in the differential diagnosis of angina pectoris.
Subject(s)
Angina Pectoris/diagnosis , Asthma/diagnosis , Adult , Age Distribution , Aged , Aged, 80 and over , Angina Pectoris/epidemiology , Asthma/epidemiology , Bronchial Provocation Tests , Diagnosis, Differential , Dobutamine , Echocardiography/methods , Exercise Test , Female , Follow-Up Studies , Forced Expiratory Volume , Humans , Incidence , Male , Middle Aged , Prospective Studies , Respiratory Function Tests , Risk Assessment , Sampling Studies , Severity of Illness Index , Sex DistributionABSTRACT
BACKGROUND: We studied the incidences and evaluated the management of early postoperative complications after thymectomy for myasthenia gravis. METHODS: During the period between 1987 and 1996, 324 thymectomies were performed through median sternotomy access under general anesthesia. Postoperative management was administered according to a standardized protocol of anticholinesterase medication, which was withdrawn for the 48 hours of obligatory postoperative mechanical ventilation. The mean age of patients was 34 years (range, 8 to 71 years). RESULTS: One hundred forty-nine patients made an uneventful recovery; 104 patients had only minor complications, whereas 71 patients had major complications. The mortality rate was 0.6% (2 patients). The major surgical complications were recorded as sternal bleeding (1 patient) and sternal disruption (1 patient). The major general complications were recorded as tracheal stenosis (1 patient), pneumonia (3 patients), heart failure (1 patient), gastric hemorrhage (1 patient), and respiratory insufficiency (71 patients). Forty-six reintubations were performed on 40 patients and 19 tracheostomies (6%) were performed postoperatively. CONCLUSIONS: The excessive incidence of respiratory insufficiency and airway-associated morbidity was potentially related, at least partially, to prolonged mechanical ventilation and withdrawal of anticholinesterase medication. Earlier weaning of patients with revision of 48-hour withdrawal of anticholinesterase medication is necessary.
Subject(s)
Myasthenia Gravis/surgery , Thymectomy/adverse effects , Thymectomy/methods , Adolescent , Adult , Aged , Child , Female , Humans , Incidence , Male , Middle Aged , Postoperative Complications/epidemiology , Sternum , Time FactorsABSTRACT
An 4-mo-old male was found to have an isolated increase in 2-methylbutyrylglycine (2-MBG) and 2-methylbutyrylcamitine (2-MBC) in physiologic fluids. In vitro oxidation studies in cultured fibroblasts using 13C- and 14C-labeled branched chain amino acids indicated an isolated block in 2-methylbutyryl-CoA dehydrogenase (2-MBCDase). Western blotting revealed absence of 2-MBCDase protein in fibroblast extracts; DNA sequencing identified a single 778 C>T substitution in the 2-MBCDase coding region (778 C>T), substituting phenylalanine for leucine at amino acid 222 (L222F) and absence of enzyme activity for the 2-MBCDase protein expressed in Escherichia coli. Prenatal diagnosis in a subsequent pregnancy suggested an affected female fetus, supporting an autosomal recessive mode of inheritance. These data confirm the first documented case of isolated 2-MBCDase deficiency in humans.
Subject(s)
Amino Acid Metabolism, Inborn Errors/diagnosis , Isoleucine/metabolism , Oxidoreductases Acting on CH-CH Group Donors , Oxidoreductases/blood , Amino Acid Metabolism, Inborn Errors/blood , Base Sequence , Carnitine/analogs & derivatives , Carnitine/blood , DNA Primers , DNA, Complementary , Female , Humans , Infant , Male , Oxidoreductases/genetics , Pregnancy , Prenatal DiagnosisABSTRACT
BACKGROUND AND AIMS: Protein and calorie malnutrition is frequently observed in chronic haemodialysis (HD) patients. Recently it has been suggested that intradialytic nutritional support with amino acids may improve nutritional status and increase immunocompetence. The aim of this study was to evaluate the effects of intradialytic infusion of amino acids, lipids and glucose on body composition and other parameters of nutritional status in patients undergoing HD. METHODS: Seven patients with a mean age of 77 +/- 6 years (range, 60-86 years), a mean BMI of 20.1 +/- 2.8 (range, 16.1-24.4) and clinical signs of malnutrition participated in the study (mean time on HD, 51 +/- 36 months). HD was performed 12 hours per week with bicarbonate as a buffer and a polysulfon capillary dialyzer (F-60). During the 3-month period of intervention the patients received an intradialytic parenteral solution during the regular scheduled dialysis treatment, containing amino acids (12 g s/h), a glucose 15% solution (37.5 g/h) and a fat emulsion (12.5 g/h). RESULTS: (mean +/- SEM) Total calorie intake increased from 1550 +/- 63 to 2255 +/- 114 (kcal/24 h) p < 0.01, during the intervention period and body weight increased from 49.9 +/- 5.9 to 51.9 +/- 5.7 kg (p < 0.005). Fat mass and lean body mass (bioelectrical impedance analysis, BIA) increased from 13.2 +/- 2.6 to 14.2 +/- 2.6 (p < 0.02) and from 36.9 +/- 3.2 to 37.9 +/- 3.2 kg (p < 0.003), respectively. Plasma concentrations of albumin, total protein, transferrin, leptin IGF-I, IGFBP-3 and the protein catabolic rate remained unchanged. CONCLUSIONS: Supplementary intravenous intradialytic nutrition in chronic HD patients with malnutrition increased total body weight by effecting equivalent increases in lean body and fat masses.
Subject(s)
Nutrition Disorders/diet therapy , Parenteral Nutrition , Proteins/metabolism , Renal Dialysis/methods , Renal Insufficiency/complications , Aged , Aged, 80 and over , Amino Acids/administration & dosage , Body Mass Index , Drug Combinations , Eating , Fat Emulsions, Intravenous/administration & dosage , Glucose/administration & dosage , Humans , Middle Aged , Nutrition Disorders/etiology , Nutritional Status , Parenteral Nutrition/methods , Phospholipids/administration & dosage , Pilot Projects , Quality of Life , Renal Dialysis/adverse effects , Renal Insufficiency/metabolism , Sorbitol/administration & dosage , Treatment Outcome , Weight LossABSTRACT
During the past decade considerable progress has been made in the field of calcium metabolism associated with chronic renal failure. The main factor influencing the pathophysiology of calcium homeostasis is its dependence on parathyroid hormone and active vitamin D metabolites. Among several new diagnostic tools, and to establish the diagnosis of renal osteodystrophy, only the measurement of i-PTH activity has any clinical relevance. The main goal in treating renal osteodystrophy is the lowering of PTH activity by correcting hyperphosphatemia and administration of calcitriol given either orally or intravenously. Furthermore, the need to lower the calcium concentration in the dialysate during calcitriol treatment is demonstrated. The clinical significance of adynamic osteodystrophy is still unclear.