Colonoscopic classification of internal hemorrhoids: usefulness in endoscopic band ligation

BACKGROUND: Bleeding is one of the main symptoms of internal hemorrhoids. However, the conventional Goligher's classification of internal hemorrhoids does not consider the severity of bleeding. We intended to establish a useful method for evaluating internal hemorrhoids using a colonoscope that reflected the severity of the symptoms. METHODS: Using a colonoscope in the retroflexed and forward viewing position, 104 patients with symptomatic internal hemorrhoids were evaluated based on the criteria of range, form and red color signs (RCS). Range was determined by the circumferential distribution of internal hemorrhoids and scaled from 0 to 4. Form was determined by size and scaled from 0 to 2. The presence of RCS was also evaluated. Symptoms were determined by interview and scaled from 0 to 3. Patients were treated by endoscopic band ligation (EBL) and were examined endoscopically before and 4 weeks after the treatment. RESULTS: Before the treatment, range, form and RCS were significantly correlated to bleeding (P < 0.01), and form was significantly correlated to prolapse (P < 0.05). The endoscopic classification scores at 4 weeks after EBL improved significantly (range from 3.25 +/- 0.05-0.56 +/- 0.08 [P < 0.01] and form from 2.81 +/- 0.04-0.56 +/- 0.07 P < 0.01). CONCLUSION: The new endoscopic classification of internal hemorrhoids proved to be closely correlated to symptoms, particularly bleeding, and thus highly useful in evaluating the effectiveness of the treatment.     

Retroflexed endoscopic multiple band ligation of symptomatic internal hemorrhoids

BACKGROUND: Elastic band ligation is a well-established nonoperative method for treatment of internal hemorrhoids that give rise to symptoms. This study assessed the efficacy and safety of retroflexed endoscopic multiple band ligation, a procedure that involves extensive ligation of internal hemorrhoids, and the immediately proximal normal rectal mucosa, by means of a retroflexed endoscope. METHODS: Eighty-two patients with symptoms caused by internal hemorrhoids (15, stage I; 19, stage II; 47, stage III; 1, stage IV) were treated by retroflexed endoscopic multiple band ligation. Symptoms (prolapse, bleeding, pain with defecation) were graded from 0 to 3. Range and form of the internal hemorrhoids were evaluated endoscopically. Retroflexed endoscopic multiple band ligation was performed by using a flexible endoscope with an attached band ligation device in the retroflexed position. RESULTS: A mean of 8 bands (range 4-14) were placed per treatment session. Seventy-six patients were treated in a single session, 5 in two sessions, and one in 3 sessions. Symptom and endoscopic scores improved at 4 weeks after the retroflexed endoscopic multiple band ligation: bleeding, from 1.26 to 0.53 (p<0.01); prolapse, from 1.94 to 0.5 (p<0.01); pain, from 1.03 to 0.93 (p=0.67); Goligher classification, from 2.41 to 1.09 (p<0.01); range, from 3.25 to 0.56 (p<0.01); and form, from 2.81 to 0.56 (p<0.01). Long-term response (mean follow-up 12 months, range 3-40 months) was excellent for 89% of the patients, good for 9%, and poor for 2%. No major complication was noted. CONCLUSIONS: Retroflexed endoscopic multiple band ligation is a safe and effective method for treatment for patients with symptoms caused by internal hemorrhoids.     

Videoanoscopy: Useful technique in the evaluation of hemorrhoids

Background and Aim:  Rigid proctoscopy, the gold standard for detecting hemorrhoids, has become a neglected procedure in the era of flexible endoscopy. Evaluation of hemorrhoids is often done with the retroflexed fiberoptic colonoscope. The aim of this study was to evaluate the technique of videoanoscopy in comparison with retroflexion of colonoscope in the rectum to detect hemorrhoids and to correlate objective findings of hemorrhoids and their relation to bleeding.
Methods:  In total, 544 patients were screened and 358 patients were evaluated by the technique of videoanoscopy and retroflexion of colonoscope in the rectum. The video images of both the procedures were independently analyzed by two observers for the presence or absence of hemorrhoids. The videoanoscopy images were also analyzed for number of columns of hemorrhoids, size and presence of red-color sign.
Results:  Videoanoscopy detected hemorrhoids in a significantly higher number of subjects when compared with retroflexion of colonoscope in the rectum by both observers ( P  < 0.05). The average kappa value was 0.637 and 0.779 for retroflexed colonoscopy and videoanoscopy, respectively. Red-color sign was present in 80.5% of patients with bleeding compared with only 30.3% in the non-bleeding group. The majority (71%) of patients in the bleeding group had larger hemorrhoids. Red-color sign and size of hemorrhoidal columns correlated with bleeding ( P  < 0.05).
Conclusion:  Videoanoscopy is a simple technique with increased sensitivity to detect hemorrhoids compared with intrarectal retroflexion of colonoscope and yields valuable objective information about the presence and condition of hemorrhoids. It should be performed as an extension of standard colonoscopy.     

A randomized study of buffy coat platelets in platelet additive solution stored 1–5 versus 6–7 days prior to prophylactic transfusion of allogeneic haematopoietic progenitor cell transplant recipients

Background and Objective  Storage of platelets > 5 days provides improved availability, logistical management and decreased outdating. Promising results on in vitro parameters and on in vivo post-transfusion recovery and survival of autologous platelets in healthy volunteers have earlier been shown. To provide additional verification, randomized patient transfusion studies are needed.
Materials and Methods  Sixty allogeneic haematopoietic progenitor cell transplant recipients were randomized to receive buffy-coat (BC) platelets stored in platelet additive solution (PAS) for 1–5 days the first time a prophylactic transfusion was needed after transplantation, followed the second time by platelets stored for 6–7 days or vice versa. The corrected count increment (CCI) for 1 and 24 h were calculated.
Results  CCI 1 h and CCI 24 h were higher for platelets stored 1–5 days as compared to 6–7 days, 10·4 ± 5·1 vs. 7·4 ± 3·8 ( P <  0·001) and 5·4 ± 4·1 vs. 2·6 ± 2·6 ( P <  0·001), respectively. Time to next platelet transfusion was significantly longer after a transfusion of platelets stored for 1–5 days as compared to platelets stored for 6–7 days: 2·2 ± 1·1 vs. 1·6 ± 0·8 days, respectively ( P <  0·005). No differences in bleeding events and no transfusion reaction were recorded.
Conclusion  The advantage of an extension of platelet storage time beyond day 5 should be balanced against the increased need for platelet transfusions that may occur and the conceivable risk of transfusion failure.     

Effects of aspirin on serum C-reactive protein and interleukin-6 levels in patients with type 2 diabetes without cardiovascular disease: a randomized placebo-controlled crossover trial

Aim:  Low-grade inflammation plays a pivotal role in atherogenesis in type 2 diabetes. Next to its antithrombotic effects, several lines of evidence demonstrate anti-inflammatory properties of aspirin. We determined the effects of aspirin on inflammation – represented by C-reactive protein (CRP) and interleukin-6 (IL-6) – in type 2 diabetic subjects without cardiovascular disease and assessed differential effects of aspirin 300 mg compared with 100 mg.
Methods:  A randomized, placebo-controlled, double-blind, crossover trial was performed in 40 type 2 diabetic patients. In two periods of 6 weeks, patients used 100 or 300 mg aspirin and placebo. Plasma CRP and IL-6 levels were measured before and after both periods.
Results:  Use of aspirin resulted in a CRP reduction of 1.23 ± 1.02 mg/l (mean ± s.e.m.), whereas use of placebo resulted in a mean increase of 0.04 ± 1.32 mg/l ( P  = 0.366). Aspirin reduced IL-6 with 0.7 ± 0.5 pg/ml, whereas use of placebo resulted in a mean increase of 0.2 ± 0.8 pg/ml ( P  = 0.302). There were no significant differences in effects on CRP and IL-6 between 100 and 300 mg aspirin.
Conclusions:  Our results indicate that a 6-week course of aspirin does not improve low-grade inflammation in patients with type 2 diabetes without cardiovascular disease, although a modest effect could not be excluded. No significant differential effects between aspirin 100 and 300 mg were found.     

Variability in bleeding phenotype in Amish carriers of haemophilia B with the 31008 C→T mutation

Summary.  The aim of this study was to characterize the variability of bleeding phenotype and its association with plasma factor IX coagulant activity (FIX:C) in haemophilia B carriers in a large Amish pedigree with a unifying genetic mutation, C-to-T transition at base 31008 of the factor IX gene ( Xq27.1–27.2) . A cross-sectional survey of haemophilia B carriers included a multiple choice questionnaire evaluating symptoms of mucocutaneous bleeding, joint bleeding and bleeding after haemostatic stress [menstruation, postpartum haemorrhage (PPH), dental extractions and invasive surgeries]. Severity of bleeding was graded as 0 to 4, 0 being no bleeding whereas 4 being severe bleeding. Association between total bleeding scores and the FIX:C was evaluated. Sixty-four haemophilia B carriers participated in this study. Median age: 18 years (range 1–70 years); median bleeding score: 1 (range 0–8). Besides PPH, isolated symptoms of bruising, epistaxis, menorrhagia and postsurgical bleeding including dental extraction were not associated with lower FIX:C. Bleeding score ≥3 was associated with involvement of at least two bleeding sites and a lower mean FIX:C of 42 ± 10.3% (95% CI 36.4–47.7) while a score >3 had involvement of ≤2 sites and higher mean FIX:C of 54.9 ± 21.5% (95% CI 49–61), P  = 0.005. Subcutaneous haematoma formation and bleeding after haemostatic stress requiring treatment were associated with bleeding scores ≥3. Phenotypic variability existed among the carriers of haemophilia B who belonged to a single pedigree carrying a single unifying mutation. The utility of bleeding scores to define bleeding phenotype precisely in haemophilia B carriers needs further evaluation.     

Clinical features predicting the detection of abnormalities by double balloon endoscopy in patients with suspected small bowel bleeding

Background and Aim:  Although double balloon endoscopy (DBE) has demonstrated a high diagnostic yield in suspected small bowel bleeding, it is not known whether DBE is of equal value to all patients with suspected small bowel bleeding or of greater benefit in selected subgroups. We aimed to determine whether any clinical features predict an increased likelihood of finding a lesion in patients with suspected small bowel bleeding.
Methods:  We retrospectively analyzed clinical features of 43 consecutive patients (M : F = 26:17, age 13–82 years) who underwent DBE because of suspected small bowel bleeding. Data associated with DBE procedure were collected prospectively. Predictive factors for the detection of a lesion were determined by comparison of clinical features between patients with positive DBE findings and those with negative findings.
Results:  Potential bleeding sources were discovered in 30 patients (69.8%) out of 43. Duration of bleeding was longer in patients with positive DBE findings than in those with negative findings (195 ± 311 vs 18 ± 17 days, P  = 0.015). Number of bleeding episodes was higher in patients with positive DBE findings (2.2 ± 1.2 vs 1.3 ± 0.5, P  = 0.011). The odds ratio for the detection of bleeding focus on DBE for patients with two or more bleeding episodes, relative to those with only one current bleeding episode was 5.67 (95% CI: 1.12–28.81, P  = 0.036) in multivariate analysis.
Conclusion:  DBE may be the most useful in patients with suspected small bowel bleeding if they have a history of frequent bleeding episodes over a long period.     

Relative response of patients with myelodysplastic syndromes and other transfusion-dependent anaemias to deferasirox (ICL670): a 1-yr prospective study

Objectives/methods:  This 1-yr prospective phase II trial evaluated the efficacy of deferasirox in regularly transfused patients aged 3–81 yrs with myelodysplastic syndromes (MDS; n  = 47), Diamond–Blackfan anaemia (DBA; n  = 30), other rare anaemias ( n  = 22) or β-thalassaemia ( n  = 85). Dosage was determined by baseline liver iron concentration (LIC).
Results:  In patients with baseline LIC ≥7 mg Fe/g dry weight, deferasirox initiated at 20 or 30 mg/kg/d produced statistically significant decreases in LIC ( P  < 0.001); these decreases were greatest in MDS and least in DBA. As chelation efficiency and iron excretion did not differ significantly between disease groups, the differences in LIC changes are consistent with mean transfusional iron intake (least in MDS: 0.28 ± 0.14 mg/kg/d; greatest in DBA: 0.4 ± 0.11 mg/kg/d). Overall, LIC changes were dependent on dose ( P  < 0.001) and transfusional iron intake ( P  < 0.01), but not statistically different between disease groups. Changes in serum ferritin and LIC were correlated irrespective of disease group ( r  = 0.59), supporting the potential use of serum ferritin for monitoring deferasirox therapy. Deferasirox had a safety profile compatible with long-term use. There were no disease-specific safety/tolerability effects: the most common adverse events were gastrointestinal disturbances, skin rash and non-progressive serum creatinine increases.
Conclusions:  Deferasirox is effective for reducing iron burden with a defined, clinically manageable safety profile in patients with various transfusion-dependent anaemias. There were no disease-specific adverse events. Once differences in transfusional iron intake are accounted for, dose-dependent changes in LIC or serum ferritin are similar in MDS and other disease groups.     

Effect of laparoscopic splenectomy on portal hypertensive gastropathy in cirrhotic patients with portal hypertension

Aim:  This study investigated the relationship between portal hypertensive gastropathy (PHG) and splenomegaly, and the effect of laparoscopic splenectomy on PHG in cirrhotic patients with portal hypertension.
Methods:  Seventy patients with liver cirrhosis and portal hypertension were prospectively studied. Indication for laparoscopic splenectomy was bleeding tendency in 10 patients, induction of interferon in 45, treatment of hepatocellular carcinoma in seven, and treatment for endoscopic injection sclerotherapy-resistant esophagogastric varices in eight. The severity of PHG was classified into none, mild, or severe according to the classification by McCormack et al. The severity of liver disease was classified using the Child–Pugh score. All patients underwent upper gastrointestinal endoscopy before and 1 month after the operation.
Results:  The prevalence of PHG was significantly correlated with the severity of liver disease using the Child–Pugh score. The severity of PHG was significantly correlated with the resected spleen volume. One month after the operation, PHG was improved in 16 of 17 patients with severe PHG and in 12 of 32 with mild PHG. The Child–Pugh score showed a significant improvement (6.8 ± 1.4 to 6.2 ± 1.2) at 3 months after laparoscopic splenectomy ( P  < 0.0001).
Conclusions:  PHG may be associated with splenomegaly, and laparoscopic splenectomy may have a beneficial effect on PHG, at least for a short time.     

Characterization of the anaemia associated with Graves' disease

Background  Graves' disease (GD) is associated with hyperthyroidism. Thyrotoxicosis adversely affects multiple organ systems including haematopoiesis. Anaemia occurring specifically in GD has not been systematically studied previously.
Objective  To define the prevalence and characteristics of the anaemia associated with GD.
Design  Eighty-seven newly diagnosed patients with GD were recruited. Haematological indices, thyroid function and inflammatory parameters were examined at presentation and following successful treatment of hyperthyroidism.
Setting  Tertiary care academic referral centre.
Results  Thirty-three per cent of subjects presented with anaemia. The prevalence of anaemia not attributable to other causes (GD anaemia) was 22%. GD anaemia affected 41·6% (10/24) of men compared to 17·5% of women (11/63). Mean erythropoietin (EPO) levels (15·5 ± 5·3 mIU/ml) were within normal reference limits but significantly higher ( P =  0·004) than those of the non-anaemic controls. Hgb correlated inversely with EPO ( P =  0·05) and CRP ( P =  0·04) levels, a relationship that persisted after multivariate adjustment for TT3 or TT4. With antithyroid therapy for 16 ± 6·3 weeks, Hgb levels normalized in 8 out of 9 subjects with GD anaemia (10·7 ± 0·8 to 13·5 ± 1·3 g/dl, P  = 0·0001). After normalization of Hgb, mean MCV and TIBC were significantly increased, and median ferritin and mean EPO were significantly decreased.
Conclusions  GD anaemia is common, resembles the anaemia of chronic disease, and is associated with markers of inflammation. It corrects promptly with return to the euthyroid state following treatment.     

Prognostic factors of spontaneous intracerebral haemorrhage in haemodialysis patients and predictors of 30-day mortality

Background:  The prognostic factors of intracerebral haemorrhage (ICH) in haemodialysis (HD) patients are not fully clear and there is no standard clinical grading scale to predict 30-day mortality. Our aim was to develop such a scale.
Methods:  Records of all HD patients with spontaneous ICH presenting to Chang Gung Memorial Hospital in Taiwan during 1994–2004 were reviewed. The study design was a retrospective analysis of data collected from one hospital. Prognostic factors were identified by Student's t -test and χ²-test. Independent predictors of 30-day mortality were determined by the logistic regression method. An outcome score based on a combination of these predictors was developed with weighting of independent predictors based on strength of association.
Results:  The overall 30-day mortality rate was 67.3%. Prognostic factors independently associated with mortality were the Glasgow Coma Scale score ( P  < 0.001), age ≥70 years ( P  = 0.032), systolic blood pressure <130 mmHg or ≥200 mmHg ( P  = 0.016), ICH volume ≥30 mL ( P  = 0.012), presence of intraventricular haemorrhage ( P  = 0.004) and serum glucose ≥8.8 mmol/L ( P  = 0.023). The score was the sum of individual points assigned as follows: Glasgow Coma Scale score 12–15 (0 points), 9–11 (1), 3–8 (4); age <70 years, yes (0), no (2); and systolic blood pressure 130–199 mmHg, yes (0), no (1). The 30-day mortality rate increased steadily with score ( P  < 0.001).
Conclusion:  The outcome score is a simple clinical grading scale that allows risk stratification of HD patients presenting with ICH. This scale could be used to design treatment protocols and clinical research studies of ICH in HD patients.     

Risk of colorectal adenomas in a multiethnic Asian patient population: Race does not matter

Background:  Ethnic differences have been reported for colorectal polyps and large bowel cancer; although the supporting data is weak and insufficient to draw firm conclusions.
Aim:  We undertook this study to determine whether such racial disparity in colorectal adenomas exists in an ethnically mixed non-migrant population. The prevalence, histology and distribution of colonic polyps were documented as well as other known risk factors for colorectal malignancy.
Methods:  In this prospective cross-sectional study, 311 consecutive referred and self-referred multiracial patients attending for colonoscopy over a 41-month period in a private endoscopy center were recruited. The mean age of the study population was 51.8 ± 14 years (range 16–91). The male to female ratio was 1.1 and an ethnic breakdown as follows: 87 Malays, 115 Chinese and 109 Indians.
Results:  Sixty-three adenomas were recorded in 36 patients: six Malays, 19 Chinese and 11 Indians. Of these adenomas, 59 were polypoid, three flat and one depressed. The majority of adenomas 42/63 (67%) were distal to the splenic flexure as were all (10/10) the Duke's A carcinomas and 6/8 (75%) of the advanced cancers. Patients with adenoma(s) compared with those without (controls) were significantly older ( P =  0.005), more likely to have a family history of colorectal cancer ( P =  0.005), and showed a trend towards significance for ethnic group ( P =  0.09) on univariate analysis. Using logistic regression analysis, only family history ( P =  0.05) and age ≥ 50 years ( P =  0.011) were found to be significantly associated with adenomas.
Conclusion:  Risk factors for colonic adenoma(s) in our cohort of symptomatic multiethnic patients attending for colonoscopy do not seem to differ from those reported elsewhere and, in particular, race does not appear to be a factor.     

Accelerated bone loss in post-menopausal women with mild primary hyperparathyroidism

OBJECTIVES Osteopenia is regarded as an indication for parathyroidectomy in primary hyperparathyroidism. However, uncertainty exists as to the extent and degree of the skeletal effects in those with mild disease. We sought to determine whether mild primary hyperparathyroidism affects the rate of bone loss in post-menopausal women.
DESIGN Prospective 2-year comparison of rates of bone loss throughout the skeleton in 17 post-menopausal women with untreated mild asymptomatic primary hyperparathyroidism, and 48 age-matched, eucalcaemic controls.
RESULTS The women with primary hyperparathyroidism had a greater annual rate of loss of bone mineral density (BMD) of the total body (mean ± SE, primary hyperparathyroidism −1.15 ± 0.31%, controls −0.39 ± 0.10%; P  = 0.04) and its spine subregion (primary hyperparathyroidism −2.08 ± 0.88%, controls 0.04 ± 0.35%; P  = 0.02). Lumbar spine BMD tended to decline in the primary hyperparathyroidism group (−0.35 ± 0.33%) in contrast to the control group (+ 0.28 ± 0.22%) ( P  = 0.10). There were no significant differences between the groups in rates of change of BMD in the legs or the proximal femur. In the primary hyperparathyroidism group, the rate of total body bone loss in the eight women known at study entry to have had long-standing (>5 years) primary hyperparathyroidism was −1.52 ± 0.61%/year, similar to that of the whole group.
CONCLUSION Primary hyperparathyroidism is associated with an increased rate of loss of total body bone mineral density in post-menopausal women. Prolonged disease duration is therefore likely to be associated with an increasing risk of osteopenia, such that skeletal surveillance and interventions designed to reduce bone loss should be considered.     

Psychological morbidity and burnout in palliative care doctors in Western Australia

Background: Medicine and particularly palliative care are considered to be stressful professions, with risks of psychological morbidity and burnout. There is little published work quantitatively documenting their prevalence among medical practitioners practising in palliative care.
Methods: Three questionnaires, including the General Health Questionnaire (GHQ-12) and the Maslach Burnout Inventory, were sent to palliative care practitioners in Western Australia.
Results: Forty-one of 43 (95%) practitioners completed the questionnaires. The mean score on the GHQ-12 was 1.9 (range 0–8), with 11 (27%) scoring 4 or more. On the Maslach Burnout Inventory, mean scores on the emotional exhaustion (EE, mean 17.5, range 1–47) and depersonalization subscales (DP, 4.5, 0–24) fell within the low range, with scores for personal accomplishment (39, 32–46) falling within the average range. Ten respondents (24%) scored high on either the EE subscale or the DP subscale, meeting criteria for burnout. GHQ-12 scores were associated with hours of work per week in palliative care ( P  = 0.004). The EE ( P  = 0.024) and DP ( P  = 0.006) components of burnout were associated with years of work in palliative care. Specialist practitioners were more likely to score in the high category for GHQ-12 (odds ratio = 4.8, P  = 0.036) and EE (odds ratio = 8.33, P  = 0.031). GHQ ( P  = 0.038) and DP ( P  = 0.006) scores were higher in those working in tertiary institutions, with tertiary practitioners more likely to be in the high EE category (odds ratio = 7.5, P  = 0.034).
Conclusion: Levels of psychiatric morbidity and burnout in palliative medicine are not higher than in other specialties.     

Association between cholesterols, homocysteine and silent brain infarcts

Background:  The aim of this study was to assess the relationship between total plasma homocysteine, cholesterol levels, vitamin B₁₂, folate, thyroid hormones, urea, ferritin, uric acid, C-reactive protein, cardiovascular risk factors and silent brain infarct (SBI) in patients without any neurological disorder. Whether the factors of interest were associated with SBI is investigated.
Methods:  One hundred and forty-two subjects with a mean age of 52.1 ± 13.1 years (21–87 years) without any history of stroke, transient ischaemic attack and neurological abnormality were enrolled in this cross-sectional study. The subjects underwent brain magnetic resonance imaging and blood chemistry determinations. Student's t -test was used to compare differences in means of laboratory results between the groups with and without SBI. The χ²-test was used for categorized variables. Multiple logistic regression analysis was used to determine the independent predictors of SBI.
Results:  The group comprised 56 men and 86 women. SBI were found in 40 patients (28%). The low-density lipoprotein levels were significantly higher in the infarct group ( P  = 0.019), homocysteine concentrations were significantly higher in the men-infarct group ( P  = 0,029) and total cholesterol levels were significantly higher in the women-infarct group than the women non-infarct group ( P  = 0.006).
Conclusion:  Serum low-density lipoprotein, total cholesterol and homocysteine levels were associated with SBI.     

Underlying mechanism of portal hypertensive gastropathy in cirrhosis: A hemodynamic and morphological approach

Background and Aim:  Portal hypertensive gastropathy (PHG) is an important cause of bleeding in patients with cirrhosis associated with portal hypertension. Histologically, the condition is characterized by dilation of the mucosal and submucosal vessels of the stomach; however, its mechanisms remain unclear. The aim of the present cross-sectional study was to evaluate the role of portal and systemic hemodynamic features, humoral factors and hepatocellular function in the development and severity of PHG in patients with cirrhosis.
Methods:  Forty-six patients with cirrhosis of different etiologies underwent endoscopy. Portal hypertension was evaluated by hepatic venous pressure gradient (HVPG). The gastric mucosa was analyzed using two diagnostic methods: endoscopy according to the McCormack criteria and histological by histomorphometric analysis.
Results:  The prevalence of PHG according to the endoscopic and histomorphometric methods was 93.4% and 76.1%, respectively. There were no statistically significant differences in HVPG measurements between the patients with mild (16.0 ± 5.9 mmHg) and severe PHG (16.9 ± 6.5 mmHg; P  = 0.80) or between patients who did not have (15.2 ± 8.0 mmHg) and those who had PHG (16.3 ± 5.7 mmHg). No correlation was found between the presence or severity of PHG and systemic vascular resistance index ( P  = 0.53 and 0.34, respectively), Child–Pugh classification ( P  = 0.73 and 0.78, respectively) or glucagon levels ( P  = 0.59 and 0.62, respectively).
Conclusions:  The present data show no correlation between the presence or the severity of PHG and portal pressure, Child–Pugh classification or systemic hemodynamics, suggesting that other factors may be involved in the physiopathology of PHG, such as local gastric mucosal factors or other underlying factors.     

Effect of metformin, orlistat and pioglitazone treatment on mean insulin resistance and its biological variability in polycystic ovary syndrome

Context  Mean insulin resistance (IR) is greater and it is also more variable in overweight women with polycystic ovarian syndrome (PCOS) compared to weight matched controls. Whilst treatment will reduce the mean IR, it is not known if the IR variability is also reduced.
Objective  To compare the change in IR and its variability before and after treatment with insulin sensitization through metformin and pioglitazone, compared to that induced by weight loss with orlistat.
Design  Randomized, open labelled parallel study.
Setting  Endocrinology outpatient clinic at a referral centre.
Patients  Thirty obese PCOS patients [BMI 36·0 ± 1·2 kg/m² (mean ± SEM)] participated in the study.
Intervention  The change in biological variability (BV) was assessed by measuring IR (homeostasis model assessment method) at 4-day intervals on 10 consecutive occasions before and 12 weeks after randomization to metformin, pioglitazone or orlistat.
Outcome measured  The primary end point of the study was a change in BV of IR.
Results  Treatment with pioglitazone, orlistat and metformin reduced the overall IR by 41·0 ± 4·1%, 19·7 ± 6·4% and 16·1 ± 6·8% ( P =  0·005, P  = 0·013, P  = 0·17, respectively) and IR variability by 28·5 ± 18·0%, 41·8 ± 11·6% and 23·7 ± 17·0 ( P =  0·20, P  = 0·015 and P  = 0·28, respectively). Free androgen index reduced significantly with all treatments.
Conclusion  Only orlistat reduced both IR and its variability significantly, though all three drugs were effective in reducing hyperandrogenism within the 12-week period of the study.     

Decreased hepatic RBP4 secretion is correlated with reduced hepatic glucose production but is not associated with insulin resistance in patients with liver cirrhosis

Objective  Patients with liver cirrhosis have a high incidence of insulin resistance and diabetes. This study was designed to determine circulating levels and hepatic production of retinol-binding protein 4 (RBP4) in relation to parameters of hepatic and systemic metabolism in patients with liver cirrhosis.
Design and method  Circulating RBP4 levels were measured in 19 patients with liver cirrhosis at different clinical stages of the disease and in 20 age-, sex- and body mass index (BMI)-matched controls. Hepatic production rates of RBP4 and glucose were assessed by measuring the arterial hepatic venous concentration difference together with hepatic blood flow. Insulin resistance was determined by the Quantitative Insulin Sensitivity Check Index (QUICKI) and the homeostasis model assessment of insulin resistance (HOMA-IR), energy expenditure by indirect calorimetry and body composition by bioelectrical impedance analysis (BIA).
Results  Compared with controls, RBP4 levels in cirrhosis were decreased (8·1 ± 1·8 vs. 22·6 ± 2·4 mg/l, P  < 0·001) due to decreased hepatic production ( P <  0·05). RBP4 correlated with hepatic protein synthesis capacity ( P <  0·01), but not with insulin resistance, energy expenditure, BMI or body fat mass. Plasma RBP4 correlated with hepatic glucose production ( P <  0·05).
Conclusions  These data demonstrate that RBP4 in cirrhosis (i) is decreased due to reduced hepatic production, (ii) is not associated with insulin resistance, and (iii) might have a beneficial role by decreasing hepatic glucose production and could thus also be regarded as a hepatokine.     

Effects of bodyweight-based exercise training on muscle functions of leg multi-joint movement in elderly individuals

Background:   Because demands of functional exercise training with using own bodyweight for elderly individuals were increasing, the present study investigated the effects of bodyweight-based exercise training on muscle functions of leg multi-joint movements in elderly individuals.
Methods:   Twenty-seven untrained healthy elderly individuals (mean ± standard deviation, 66.0 ± 5.7 years) completed the training program for 10 months. The exercise program consisted mainly of exercises for large leg muscle groups without using external weight, performing 10–50 repetitions and 1–3 sets for each exercise. Before and after the training period, force–velocity relations of knee–hip extension movements were measured with a servo-controlled dynamometer and the maximum force (Fmax), velocity (Vmax) and power (Pmax) were determined.
Results:   After the training, Fmax and Pmax increased and these increases represented 15% ( P  < 0.001) and 13% ( P  < 0.01) of pre-training value, respectively, while Vmax did not change. Increases in Fmax after the training were positively correlated with the initial exercise intensity determined from bodyweight (BW)/Fmax of pre-training values ( P  < 0.05).
Conclusion:   A training program using bodyweight can be substantially effective in improving lower limb muscle force and power in elderly individuals; however, the initial training status is important for progressive increases in muscle force.