8 research outputs found

    Prevalence and risk of hepatitis e virus infection in the HIV population of Nepal

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    Background: Infection with the hepatitis E virus (HEV) can cause acute hepatitis in endemic areas in immune-competent hosts, as well as chronic infection in immune-compromised subjects in non-endemic areas. Most studies assessing HEV infection in HIV-infected populations have been performed in developed countries that are usually affected by HEV genotype 3. The objective of this study is to measure the prevalence and risk of acquiring HEV among HIV-infected individuals in Nepal. Methods: We prospectively evaluated 459 Human Immunodeficiency Virus (HIV)-positive individuals from Nepal, an endemic country for HEV, for seroprevalence of HEV and assessed risk factors associated with HEV infection. All individuals were on antiretroviral therapy and healthy blood donors were used as controls. Results: We found a high prevalence of HEV IgG (39.4%) and HEV IgM (15.3%) in HIV-positive subjects when compared to healthy HIV-negative controls: 9.5% and 4.4%, respectively (OR: 6.17, 95% CI 4.42-8.61, p < 0.001 and OR: 3.7, 95% CI 2.35-5.92, p < 0.001, respectively). Individuals residing in the Kathmandu area showed a significantly higher HEV IgG seroprevalance compared to individuals residing outside of Kathmandu (76.8% vs 11.1%, OR: 30.33, 95% CI 18.02-51.04, p = 0.001). Mean CD4 counts, HIV viral load and presence of hepatitis B surface antigen correlated with higher HEV IgM rate, while presence of hepatitis C antibody correlated with higher rate of HEV IgG in serum. Overall, individuals with HEV IgM positivity had higher levels of alanine aminotransferase (ALT) than IgM negative subjects, suggesting active acute infection. However, no specific symptoms for hepatitis were identified. Conclusions: HIV-positive subjects living in Kathmandu are at higher risk of acquiring HEV infection as compared to the general population and to HIV-positive subjects living outside Kathmandu

    Impact of milk protein type on the viability and storage stability of microencapsulated Lactobacillus acidophilus using spray drying

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    Three different milk proteins — skim milk powder (SMP), sodium caseinate (SC) and whey protein concentrate (WPC) — were tested for their ability to stabilize microencapsulated L. acidophilus produced using spray drying. Maltodextrin (MD) was used as the primary wall material in all samples, milk protein as the secondary wall material (7:3 MD/milk protein ratio) and the simple sugars, d-glucose and trehalose were used as tertiary wall materials (8:2:2 MD/protein/sugar ratio) combinations of all wall materials were tested for their ability to enhance the microbial and techno-functional stability of microencapsulated powders. Of the optional secondary wall materials, WPC improved L. acidophilus viability, up to 70 % during drying; SMP enhanced stability by up to 59 % and SC up to 6 %. Lactose and whey protein content enhanced thermoprotection; this is possibly due to their ability to depress the glass transition and melting temperatures and to release antioxidants. The resultant L. acidophilus powders were stored for 90 days at 4 °C, 25 °C and 35 °C and the loss of viability calculated. The highest survival rates were obtained at 4 °C, inactivation rates for storage were dependent on the carrier wall material and the SMP/d-glucose powders had the lowest inactivation rates (0.013 day−1) whilst the highest was observed for the control containing only MD (0.041 day−1) and the SC-based system (0.030 day−1). Further increase in storage temperature (25 °C and 35 °C) was accompanied by increase of the inactivation rates of L. acidophilus that followed Arrhenius kinetics. In general, SMP-based formulations exhibited the highest temperature dependency whilst WPC the lowest. d-Glucose addition improved the storage stability of the probiotic powders although it was accompanied by an increase of the residual moisture, water activity and hygroscopicity, and a reduction of the glass transition temperature in the tested systems

    RS3PE revisited: a systematic review and meta-analysis of 331 cases.

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    OBJECTIVES: Remitting seronegative symmetrical synovitis with pitting oedema (RS(3)PE) syndrome is a rare inflammatory arthritis, characterised by symmetrical distal synovitis, pitting oedema of the hands and feet, absence of rheumatoid factor, and favourable response to glucocorticoids. The aim of our study is to further delineate the clinical and laboratory features, and response to treatment. METHODS: We performed a systematic electronic search of Medline, PubMed, EMBASE, ACR and EULAR databases for case reports, case series, and related articles of RS(3)PE. Statistical analysis was done comparing categorical variables with Chi-square tests and frequencies of means via t-tests. Binary logistic regression analysis was performed to identify predictors of erosions, recurrence, malignancy and rheumatologic disorders. RESULTS: 331 cases of RS(3)PE were identified from 121 articles. RS(3)PE was found in older patients (71±10.42 years) predominantly in males (n= 211, 63.36%), was symmetrical (n=297/311, 95.50%) involved the hands (n=294/311, 94.53%) A concurrent rheumatologic condition was reported in 22 cases (6.65%), and malignancy in 54 cases (16.31%). Radiographic joint erosions were found in 5.5%. Most patients responded to medium-dose glucocorticoids (16.12±9.5 mg/day). Patients with concurrent malignancy requiring non-significantly higher doses of prednisone (18.12 vs. 15.76 mg, p 0.304) and higher likelihood of recurrence of disease (OR 4.04, 95% CI 1.10-14.88, p=0.03). CONCLUSIONS: The symptoms and unique findings that make up RS(3)PE appear to represent a steroid-responsive disease that may be a harbinger of an underlying malignancy. More study is needed to understand the molecular origins of RS(3)PE in order to determine whether it is a separate disease process. Patients with concurrent cancer tend to have more severe presentations and higher rates of recurrence

    Weather on Mount Everest during the 2019 summer monsoon

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    Records from new high altitude weather stations reveal the meteorological conditions on Mt Everest during the 2019 monsoon. Using data from June-October, we show that the temperature, humidity, and winds announce the arrival of the monsoon, with changes that amplify with elevation. The largest change is therefore at the summit, where we estimate that monthly mean air temperature increased by 5.5 °C between June and July to average -19.1 °C over the monsoon. Such warming takes temperatures into the realm of winter conditions on much lower mountains of the mid-latitudes, illustrated with the well-known Mount Washington observatory (1,916 m; New Hampshire, USA). Although other dangers of climbing Everest may be enhanced during the monsoon, the cold induced hazard is much reduced

    Asia–Pacific association for study of liver guidelines on management of ascites in liver disease

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    The development of ascites is a landmark event in the natural history of cirrhosis. This guidance statement by the Asia–Pacific Association for Study of Liver (APASL) provides an evidence-based approach to managing ascites and its complications in patients with chronic liver disease. These guidelines extensively review the differential diagnosis, diagnostic evaluation, and management of ascites, hyponatremia, hepatic hydrothorax and hepatorenal syndrome (HRS) in patients with cirrhosis and acute-on-chronic liver failure (ACLF). A panel of international experts was invited to formulate the guidelines. The opinions of the experts were collected using two sets of Delphi questionnaires. Then, an online meeting of all the experts was held to discuss the evidence and formulate the final recommendations by consensus. The guidelines were developed using the GRADE system for analysing the level of evidence and strength of recommendation (Table 1). All authors have gone through the guidance document and endorse the same.In this document, we have also covered the grey areas which have been underexplored in previous guidelines and some of the issues which are relatively peculiar to the Asia–Pacific region. Given the high burden of tuberculosis in some of the countries of the Asia–Pacific region, mixed ascites is not uncommon in these patients with liver disease. We discuss the diagnostic approach to mixed ascites and the role of ascitic fluid adenosine deaminase (ADA) and other tests for tuberculosis. In addition, many countries in the Asia–Pacific region are low-middle-income countries, and financial constraints are an essential barrier to liver transplants and other costly therapies like albumin. Hence, we have discussed the role of low-dose albumin in the prevention of paracentesis-induced circulatory dysfunction (PICD) after large-volume paracentesis (LVP) and the prevention of acute kidney injury (AKI) in patients with spontaneous bacterial peritonitis (SBP). We have also reviewed the current evidence of outpatient albumin in managing patients with ascites and have made practical recommendations. We also highlight the timing of albumin infusion concerning LVP. To decrease adverse events and improve patient compliance with diuretic therapy, the guidelines emphasize initiating low-dose diuretics and gradually increasing the dose to the maximum tolerable dose. Non-alcoholic fatty liver disease (NAFLD), also referred to as Metabolic associated fatty liver disease (MAFLD) by some societies has become a significant cause of chronic liver disease worldwide [1]. Many patients with NAFLD/MAFLD related cirrhosis are on angiotensin converting enzyme (ACE) inhibitors or angiotensin receptor blockers (ARBs) when they present to a hepatologist or gastroenterologist with ascites. For the first time, we provide guidance statements regarding the use of these drugs in patients with cirrhosis and ascites. For refractory ascites, we have now defined renal dysfunction following the International Club of Ascites (ICA) recommendations on AKI. Lastly, we have highlighted the gaps in our knowledge and have provided directions for future research
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