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Unconjugated bilirubin

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https://www.readbyqxmd.com/read/29740357/a-perspective-on-a-possible-relation-between-the-psychopathology-of-the-schizophrenia-schizoaffective-spectrum-and-unconjugated-bilirubin-a-longitudinal-protocol-study
#1
João Gama Marques, Filipe Arantes-Gonçalves
Some authors suggest a relation between Unconjugated Bilirubin (UCB) plasma high levels and schizophrenia, as schizophrenia patients have been showing higher UCB levels when compared with other psychiatric patients and general population. These higher UCB levels have been already correlated with acute psychotic states, positive symptoms, and poor outcome in patients with schizophrenia. Schizophrenia and schizoaffective disorders share common symptoms but there aren't yet accepted biomarkers for their distinction...
2018: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/29737813/age-and-cd4-count-are-dominant-factors-in-the-prediction-of-anaemia-in-javanese-hiv-patients
#2
Joko Wahyuwibowo, Stefani Harumsari, Siti Thomas Zulaikha, Ari Suwondo, Muchlis Achsan Udji Sofro, Suharyo Hadisaputro
BACKGROUND AND OBJECTIVES: Anaemia in Human Immunodeficiency Virus (HIV) infection is multifactorial and an increasingly important variable to consider in the management. This is the first study of anaemia in HIV infection in the Javanese population, which constitutes the largest ethnic group in Indonesia. The aim of this study was to determine the factors which are associated with anaemia in Javanese patients with HIV infection. METHODS AND STUDY DESIGN: This study applied a cross-sectional design involving HIV patients in Dr Kariadi Hospital and Balai Kesehatan Paru Masyarakat (BKPM), Semarang, Indonesia...
2018: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29704452/neuroprotective-effect-of-%C3%AF-3-polyunsaturated-fatty-acids-on-bilirubin-encephalopathy-in-vitro-and-in-vivo
#3
Wei Hao, Jia Song, Gang Li
BACKGROUND Bilirubin encephalopathy is a serious complication in neonatal jaundice and is associated with high mortality and disability in newborns. The present study aimed to investigate the neuroprotective effects of omega-3 polyunsaturated fatty acids (ω-3 PUFA) on bilirubin encephalopathy in vitro and in vivo. MATERIAL AND METHODS The cytotoxicity of unconjugated bilirubin (UCB) to neurons and neuroprotection of ω-3 PUFA were investigated using MTT assays and apoptosis evaluations. Superoxide dismutase (SOD) and catalase (CAT) enzyme activity were measured to investigate the anti-oxidative effect of ω-3 PUFA...
April 28, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29684370/analytical-validation-and-investigation-on-reference-intervals-of-aldosterone-and-renin-in-chinese-han-population-by-using-fully-automated-chemiluminescence-immunoassays
#4
Lingyan Deng, Zhigang Xiong, Huijun Li, Xiaomei Lei, Liming Cheng
BACKGROUND: The aldosterone/renin ratio (ARR) is recommended to screen for primary aldosteronism (PA) in hypertension. We estimated fully automated chemiluminescence immunoassays (CLIA) for plasma aldosterone concentrations (PAC) and plasma direct renin concentrations (PRC) and investigated their reference intervals in Chinese Han population. METHODS: PAC and PRC were measured on a fully automated analyzer (LIAISON XL, DiaSorin, Italy). Performance characteristics were estimated according to CLSI proved guidelines...
April 20, 2018: Clinical Biochemistry
https://www.readbyqxmd.com/read/29555465/low-serum-bilirubin-levels-contribute-to-the-presence-and-progression-of-distal-symmetrical-polyneuropathy-in-chinese-patients-with-type-2-diabetes
#5
J Jin, W Wang, T Gu, C Chen, J Sun, W Chen, Y Bi, D Zhu
AIM: To investigate the association between serum bilirubin and distal symmetrical polyneuropathy (DSPN) in Chinese patients with type 2 diabetes (T2D). METHODS: A total of 1800 inpatients with T2D (including 68 with 1-year follow-ups) were consecutively enrolled between June 2014 and March 2017. DSPN was diagnosed according to criteria recommended by the Toronto Diabetic Neuropathy Expert Group in 2010. Clinical data were retrospectively collected. RESULTS: Patients with vs...
February 22, 2018: Diabetes & Metabolism
https://www.readbyqxmd.com/read/29534743/ugt1a1-gene-and-neonatal-hyperbilirubinemia-a-preliminary-study-from-bengkulu-indonesia
#6
Radhian Amandito, Raihandhana Putradista, Clara Jikesya, Dwi Utaminingsih, Jumnalis Rusin, Rinawati Rohsiswatmo, Amarila Malik
OBJECTIVE: The genetic involvement in unconjugated neonatal hyperbilirubinemia has been extensively studied. Despite the high incidence of hyperbilirubinemia in Indonesia, studies are lacking. The objective of this study is to elucidate the role of polymorphism in the UGT1A1 in Neonatal Hyperbilirubinemia in Bengkulu, Indonesia. RESULTS: There were 41 neonates enrolled in the study; 30 had a total serum bilirubin level ≥ 15 mg/dL (hyperbilirubinemia neonates) while 11 has < 15 mg/dL (control neonates)...
March 13, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29510380/the-neuroprotective-effects-of-hypothermia-on-bilirubin-induced-neurotoxicity-in-vitro
#7
Nazli Kuter, Nese Aysit-Altuncu, Gurkan Ozturk, Eren Ozek
BACKGROUND: In high-risk newborns indirect hyperbilirubinemia can lead to acute bilirubin encephalopathy and kernicterus. Despite the current therapeutic modalities, preventing or reversing the neurotoxicity cannot be achieved in all infants. OBJECTIVE: To investigate the neuroprotective effects of hypothermia on bilirubin-induced toxicity in primary mouse neuronal cell cultures. METHODS: Hippocampal cell cultures, isolated from newborn mouse brains, were incubated with unconjugated bilirubin (UCB) at 3 days in vitro (DIV) and immediately exposed to varying degrees of hypothermia...
March 6, 2018: Neonatology
https://www.readbyqxmd.com/read/29395087/a-dual-ligand-modulable-fluorescent-protein-based-on-unag-and-calmodulin
#8
Yoh Shitashima, Togo Shimozawa, Toru Asahi, Atsushi Miyawaki
UnaG is a green-emitting fluorescent protein that utilizes unconjugated bilirubin (BR) as its fluorophore. While BR has captured the attention of physiologists as an important antioxidant that scavenges reactive oxygen species in biological membranes, its excessive accumulation causes several clinical symptoms. Although the optimal regulation of BR concentration would result in clinical therapies for aging as well as reduce risks of clinical symptoms, UnaG hardly releases BR owing to its extremely high affinity for BR (Kd  = 98 pM)...
February 12, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29390925/diagnostic-criteria-and-contributors-to-gilbert-s-syndrome
#9
Karl-Heinz Wagner, Ryan G Shiels, Claudia Anna Lang, Nazlisadat Seyed Khoei, Andrew C Bulmer
Hyperbilirubinemia is a well-known condition in the clinical setting; however, the causes of elevated serum bilirubin are diverse, as are the clinical ramifications of this condition. For example, diagnoses of individuals vary depending on whether they exhibit an unconjugated or conjugated hyperbilirubinemia. Diagnoses can include conditions of disordered bilirubin metabolism (Gilbert's, Crigler-Najjar, Rotor, or Dubin-Johnson syndromes) or an acquired disease, including alcoholic/non-alcoholic fatty liver disease, hepatotropic hepatitis, cirrhosis, or hepato-biliary malignancy...
March 2018: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/29357878/unconjugated-bilirubin-induces-pyroptosis-in-cultured-rat-cortical-astrocytes
#10
Jie Feng, Mengwen Li, Qian Wei, Shengjun Li, Sijie Song, Ziyu Hua
BACKGROUND: Bilirubin-induced neurological dysfunction (BIND), a severe complication of extreme neonatal hyperbilirubinemia, could develop into permanent neurodevelopmental impairments. Several studies have demonstrated that inflammation and nerve cell death play important roles in bilirubin-induced neurotoxicity; however, the underlying mechanism remains unidentified. METHODS: The present study was intended to investigate whether pyroptosis, a highly inflammatory form of programmed cell death, participated in the bilirubin-mediated toxicity on cultured rat cortical astrocytes...
January 22, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29354174/prometheus-therapy-for-the-treatment-of-acute-liver-failure-in-patients-after-cardiac-surgery
#11
Ekaterina Komardina, Michael Yaroustovsky, Marina Abramyan, Marina Plyushch
Introduction: Acute liver failure usually develops in multiple organ dysfunction syndrome and significantly increases the mortality risk in patients after cardiac surgery. Aim: To assess the safety and efficacy of extracorporeal liver support in patients with acute liver failure after cardiac surgery. Material and methods: We studied 39 adult patients with multiple organ dysfunction syndrome and acute liver failure as postoperative complication, treated with Prometheus therapy...
December 2017: Kardiochirurgia i Torakochirurgia Polska, Polish Journal of Cardio-Thoracic Surgery
https://www.readbyqxmd.com/read/29295636/caffeine-prevents-bilirubin-induced-cytotoxicity-in-cultured-newborn-rat-astrocytes
#12
Mehmet Deliktaş, Hacer Ergin, Aydın Demiray, Hakan Akça, Özmert M A Özdemir, Mehmet Bülent Özdemir
OBJECTIVE: Unconjugated bilirubin (UCB) may cause neurotoxicity in preterm neonates due to immaturity of UGT1A1 leading to bilirubin accumulation in the brain. Caffeine used in the treatment of apnea of prematurity was reported to decrease mechanical ventilation requirement, the frequencies of bronchopulmonary dysplasia, patent ductus arteriosus, cerebral palsy and neurodevelopmental disorders in very low birth weight infants. However, the effect of caffeine on hyperbilirubinemia was not yet clarified...
January 2, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29279144/mild-hyperbilirubinaemia-as-an-endogenous-mitigator-of-overweight-and-obesity-implications-for-improved-metabolic-health
#13
Nazlisadat Seyed Khoei, Annemarie Grindel, Marlies Wallner, Christine Mölzer, Daniel Doberer, Rodrig Marculescu, Andrew Bulmer, Karl-Heinz Wagner
BACKGROUND AND AIMS: Mild endogenous elevation of unconjugated bilirubin (UCB) as seen in Gilbert's syndrome (GS), might mitigate cardiovascular disease (CVD) risk factors including overweight/obesity. This study aimed to determine whether hyperbilirubinaemia is linked to improved anthropometric data and lipid profile. METHODS: Our study considered GS and age-/gender-matched healthy controls (n = 248). Additionally, obese female type 2 diabetic patients (DM2) (n = 26) were included as a "disease control group"...
February 2018: Atherosclerosis
https://www.readbyqxmd.com/read/29274300/unconjugated-bilirubin-modulates-neuronal-signaling-only-in-wild-type-mice-but-not-after-ablation-of-the-r-type-ca-v-2-3-voltage-gated-calcium-channel
#14
Walid Albanna, Felix Neumaier, Jan Niklas Lüke, Konstantin Kotliar, Catharina Conzen, Ute Lindauer, Jürgen Hescheler, Hans Clusmann, Toni Schneider, Gerrit Alexander Schubert
INTRODUCTION: The relationship between blood metabolites and hemoglobin degradation products (BMHDPs) formed in the cerebrospinal fluid and the development of vasospasm and delayed cerebral ischemia (DCI) after aneurysmal subarachnoid hemorrhage (aSAH) has been the focus of several previous studies, but their molecular and cellular targets remain to be elucidated. METHODS: Because BMHDP-induced changes in Cav 2.3 channel function are thought to contribute to DCI after aSAH, we studied their modulation by unconjugated bilirubin (UCB) in an organotypical neuronal network from wild-type (WT) and Cav 2...
March 2018: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/29240507/neonatal-jaundice-aetiology-diagnosis-and-treatment
#15
Subhabrata Mitra, Janet Rennie
A significant proportion of term and preterm infants develop neonatal jaundice. Jaundice in an otherwise healthy term infant is the most common reason for readmission to hospital. Jaundice is caused by an increase in serum bilirubin levels, largely as a result of breakdown of red blood cells. Bilirubin is conveyed in the blood as 'unconjugated' bilirubin, largely bound to albumin. The liver converts bilirubin into a conjugated form which is excreted in the bile. Very high levels of unconjugated bilirubin are neurotoxic...
December 2, 2017: British Journal of Hospital Medicine
https://www.readbyqxmd.com/read/29203650/point-of-care-device-to-diagnose-and-monitor-neonatal-jaundice-in-low-resource-settings
#16
Pelham A Keahey, Mathieu L Simeral, Kristofer J Schroder, Meaghan M Bond, Prince J Mtenthaonnga, Robert H Miros, Queen Dube, Rebecca R Richards-Kortum
Newborns are at increased risk of jaundice, a condition in which excess bilirubin accumulates in blood. Left untreated, jaundice can lead to neurological impairment and death. Jaundice resulting from unconjugated hyperbilirubinemia is easily treated with exposure to blue light, and phototherapy systems have been developed for low-resource settings; however, there are no appropriate solutions to diagnose and monitor jaundice in these settings. To address this need we present BiliSpec, a low-cost reader and disposable lateral flow card designed to measure the concentration of total bilirubin from several drops of blood at the point of care...
December 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29187150/identification-of-pathogens-for-differential-diagnosis-of-fever-with-jaundice-in-the-central-african-republic-a-retrospective-assessment-2008-2010
#17
Christelle Luce Bobossi Gadia, Alexandre Manirakiza, Gaspard Tekpa, Xavier Konamna, Ulrich Vickos, Emmanuel Nakoune
BACKGROUND: Febrile jaundice results clinically in generalized yellow coloration of the teguments and mucous membranes due to excess plasma bilirubin, accompanied by fever. Two types are found: conjugated and unconjugated bilirubin jaundice. Jaundice is a sign in several diseases due to viruses (viral hepatitis and arbovirus), parasites (malaria) and bacteria (leptospirosis). In the Central African Republic (CAR), only yellow fever is included on the list of diseases for surveillance...
November 29, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29137095/differences-in-ugt1a1-gene-mutations-and-pathological-liver-changes-between-chinese-patients-with-gilbert-syndrome-and-crigler-najjar-syndrome-type-ii
#18
COMPARATIVE STUDY
Lei Sun, Man Li, Liang Zhang, Xiaoying Teng, Xiangmei Chen, Xingang Zhou, Zhiyuan Ma, Liming Qi, Peng Wang
Diagnosis of Crigler-Najjar syndrome type II (CNS-II) and Gilbert syndrome (GS) based on the serum bilirubin concentration is difficult, because this parameter can fluctuate under certain conditions. The aim of this study was to explore differences in UGT1A1 gene mutations, which cause both CNS and GS, and pathological changes between CNS-II and GS.Ninety-five Chinese patients with hereditary unconjugated hyperbilirubinemia were enrolled in this study. Peripheral blood samples obtained from patients were used to evaluate bilirubin levels and for UGT1A1 gene testing...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29132818/bilirubin-albumin-binding-and-unbound-unconjugated-hyperbilirubinemia-in-premature-infants
#19
Sanjiv B Amin, Hongyue Wang
OBJECTIVE: To evaluate the associations between unbound bilirubin (UB) and total serum bilirubin (TSB), bilirubin:albumin molar ratio (BAMR), and bilirubin albumin binding affinity (Ka) as a function of gestational age (GA) in infants born at 24-33 weeks GA. STUDY DESIGN: In a prospective observational study, TSB and UB were measured twice daily at least 8 hours apart during the first postnatal week. Serum albumin was measured to calculate BAMR on each day. The highest UB on each day, corresponding TSB, and serum albumin were used to calculate the Ka on each day...
January 2018: Journal of Pediatrics
https://www.readbyqxmd.com/read/29117957/nocturnal-oxyhemoglobin-desaturation-and-arteriopathy-in-a-pediatric-sickle-cell-disease-cohort
#20
Nomazulu Dlamini, Dawn E Saunders, Michael Bynevelt, Sara Trompeter, Timothy C Cox, Romola S Bucks, Fenella J Kirkham
OBJECTIVE: The purpose of this study of sickle cell disease (SCD) was to determine whether arteriopathy, measurable as intracranial vessel signal loss on magnetic resonance angiography (MRA), was associated with low nocturnal hemoglobin oxygen saturation (SpO2) or hemolytic rate, measurable as reticulocytosis or unconjugated hyperbilirubinemia. METHODS: Ninety-five East London children with SCD without prior stroke had overnight pulse oximetry, of whom 47 (26 boys, 39 hemoglobin SS; mean age 9...
December 12, 2017: Neurology
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