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https://www.readbyqxmd.com/read/28420706/common-structural-features-of-cholesterol-binding-sites-in-crystallized-soluble-proteins
#1
Anna N Bukiya, Alejandro M Dopico
Cholesterol-protein interactions are essential for the architectural organization of cell membranes and for lipid metabolism. While cholesterol-sensing motifs in transmembrane proteins have been identified, little is known about cholesterol recognition by soluble proteins. We reviewed the structural characteristics of binding sites for cholesterol and cholesterol sulfate from crystallographic structures available in the Protein Data Bank. This analysis unveiled key features of cholesterol-binding sites that are present in either all or the majority of sites: i) the cholesterol molecule is generally positioned between protein domains that have an organized secondary structure; ii) the cholesterol hydroxyl/sulfo group is often partnered by Asn, Gln and/or Tyr while the hydrophobic part of cholesterol interacts with Leu, Ile, Val and/or Phe; iii) cholesterol hydrogen-bonding partners are often found on alpha-helices while amino acids that interact with cholesterol hydrophobic core have a slight preference for beta-strands and secondary structure-lacking protein areas; iv) the steroid C21 and 26 constitute the ″hot spots″ most often seen for steroid-protein hydrophobic interactions; v) common ″cold spots″ are C8, 9, 10, 13 and 17, at which contacts with the proteins were not detected...
April 18, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28391441/self-medication-with-antibiotics-in-serbian-households-a-case-for-action
#2
Ana Tomas, Milica Paut Kusturica, Zdenko Tomić, Olga Horvat, Daniela Djurović Koprivica, Dragica Bukumirić, Ana Sabo
Background Irregular antibiotic use, including self-medication contributes to the development of antibiotic resistance. One method of accessing antibiotic use in the community is through obtaining an in house inventory of drugs. Objective The aim of this study was to investigate the extent of storage and self-medication with antibiotics agents in households in Novi Sad, Serbia. Setting Households in Novi Sad. Method The study was performed during a 4-month period (October 2015-January 2016) using a sample of 112 households in Novi Sad, Serbia...
April 8, 2017: International Journal of Clinical Pharmacy
https://www.readbyqxmd.com/read/28358967/acute-bilateral-photoreceptor-degeneration-in-an-infant-after-vaccination-against-measles-and-rubella
#3
Kazuki Kuniyoshi, Yoshikazu Hatsukawai, Sadami Kimura, Takahiro Fujino, Hiroshi Ohguro, Rie Nakai, Kenta Sunami, So-Ichiro Mishima, Tomoko Sato, Shunji Kusaka, Yasuhiro Suzuki, Yoshikazu Shimomura
Importance: Ocular inflammation is occasionally observed after vaccinations, and most of them resolve without permanent visual disturbances. However, there are some rare cases of severe ocular complications following vaccinations. Objective: To report the findings in an infant boy who developed an acute loss of vision bilaterally after Haemophilus influenzae type b, Pneumococcal conjugate vaccination, and measles and rubella vaccination. His vision did not recover...
March 30, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28358524/loneliness-predicts-self-reported-cold-symptoms-after-a-viral-challenge
#4
Angie S LeRoy, Kyle W Murdock, Lisa M Jaremka, Asad Loya, Christopher P Fagundes
OBJECTIVE: Loneliness is a well-established risk factor for poor physical health. Much less is known about how loneliness affects patient-reported outcomes (PROs), such as somatic symptoms, which are increasingly important for guiding symptom management and assessing quality of patient care. The current study investigates whether (a) loneliness and social isolation predict cold symptoms independent of each other, and (b) whether loneliness is a more robust risk factor than objective social isolation for experiencing cold symptoms...
May 2017: Health Psychology: Official Journal of the Division of Health Psychology, American Psychological Association
https://www.readbyqxmd.com/read/28356234/efficacy-of-novel-antibody-based-drugs-against-rhinovirus-infection-in%C3%A2-vitro-and-in%C3%A2-vivo-results
#5
Nataliia V Petrova, Alexandra G Emelyanova, Evgeniy A Gorbunov, Michael R Edwards, Ross P Walton, Nathan W Bartlett, Julia Aniscenko, Leila Gogsadze, Eteri Bakhsoliani, Musa R Khaitov, Sebastian L Johnston, Sergey A Tarasov, Oleg I Epstein
Rhinoviruses (RVs) cause the common cold and are associated with exacerbations of chronic inflammatory respiratory diseases, especially asthma and chronic obstructive pulmonary disease (COPD). We have assessed the antiviral drugs Anaferon for Children (AC) and Ergoferon (containing AC as one of the active pharmaceutical ingredients) in in vitro and in vivo experimental models, in order to evaluate their anti-rhinoviral and immunomodulatory potential. HeLa cells were pretreated with AC, and levels of the interferon-stimulated gene (ISG), 2'-5'-oligoadenylate synthetase 1 (OAS1-A) and viral replication were analyzed...
June 2017: Antiviral Research
https://www.readbyqxmd.com/read/28353648/vitamin-c-and-infections
#6
REVIEW
Harri Hemilä
In the early literature, vitamin C deficiency was associated with pneumonia. After its identification, a number of studies investigated the effects of vitamin C on diverse infections. A total of 148 animal studies indicated that vitamin C may alleviate or prevent infections caused by bacteria, viruses, and protozoa. The most extensively studied human infection is the common cold. Vitamin C administration does not decrease the average incidence of colds in the general population, yet it halved the number of colds in physically active people...
March 29, 2017: Nutrients
https://www.readbyqxmd.com/read/28352463/pervasive-antibiotic-misuse-in-the-cambodian-community-antibiotic-seeking-behaviour-with-unrestricted-access
#7
Chhorvoin Om, Frances Daily, Erika Vlieghe, James C McLaughlin, Mary-Louise McLaws
BACKGROUND: Antibiotic misuse is widespread in resource-limited countries such as Cambodia where the burden of infectious diseases is high and access to antibiotics is unrestricted. We explored healthcare seeking behaviour related to obtaining antibiotics and drivers of antibiotic misuse in the Cambodian community. METHODS: In-depth interviews were held with family members of patients being admitted in hospitals and private pharmacies termed pharmacy attendants in the catchment areas of the hospitals...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28351766/common-cold-among-pre-school-children-in-china-associations-with-ambient-pm10-and-dampness-mould-cats-dogs-rats-and-cockroaches-in-the-home-environment
#8
Dan Norbäck, Chan Lu, Yinping Zhang, Baizhan Li, Zhuohui Zhao, Chen Huang, Xin Zhang, Hua Qian, Jan Sundell, Qihong Deng
BACKGROUND: There is some evidence that dampness, mould and cockroaches can increase the risk of respiratory infections in children but few studies exist from China on this topic. Aim To study associations between domestic early life exposure to biological indoor factors (dampness, mould, cats, dogs, rats, cockroaches), cleaning habits and common cold among pre-school children across China. METHODS: Children aged 3-6years (n=39,782) were recruited from randomly selected day care centres in seven cities in China...
June 2017: Environment International
https://www.readbyqxmd.com/read/28338666/the-association-of-maternal-factors-with-epibulbar-dermoid-of-newborn-a-retrospective-matched-case-control-study
#9
S Wu, Y Fan, D Wu, J Hong, J Xu
PurposeTo determine the association of maternal factors and exposure during pregnancy with the incidence in newborns of epibulbar dermoid (ED), a congenital ocular surface benign tumor.Patients and methodsThis is a retrospective, paired case-control study in which 121 children with ED (case group) and 121 children without ED (control group) were recruited. Questionnaire-based interviews with mothers of participants were performed and maternal medical records during pregnancy were reviewed. The questionnaire investigated basic information, personal history, environmental exposure, exposure to maternal diseases, symptoms and corresponding medical treatments during pregnancy, and parental socioeconomic status...
March 24, 2017: Eye
https://www.readbyqxmd.com/read/28331305/colds-as-predictors-of-the-onset-and-severity-of-copd-exacerbations
#10
Neil W Johnston, Marita Olsson, Staffan Edsbäcker, Maria Gerhardsson de Verdier, Per Gustafson, Christopher McCrae, Peter V Coyle, R Andrew McIvor
RATIONALE: Common colds are associated with acute respiratory symptom exacerbations in COPD patients. OBJECTIVE: To determine exacerbation risk and severity in COPD patients with/without coincident self-reported colds. METHODS: Global initiative for chronic Obstructive Lung Disease stage I-IV COPD patients electronically transmitted respiratory symptom diaries to research staff daily between December 2006 and April 2009. Respiratory symptom worsening prompted contact by a study nurse and patient assessment to determine if a cold was present or an exacerbation underway...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28331194/post-treatment-with-ma-huang-tang-ameliorates-cold-warm-cycles-induced-rat-lung-injury
#11
Meng-Meng Xiao, Chun-Shui Pan, Yu-Ying Liu, Li-Qian Ma, Li Yan, Jing-Yu Fan, Chuan-She Wang, Rong Huang, Jing-Yan Han
Frequent and drastic ambient temperature variation may cause respiratory diseases such as common cold and pneumonia, the mechanism for which is not fully understood, however, due to lack of appropriate animal models. Ma-Huang-Tang (MHT) is widely used in China for treatment of respiratory diseases. The present study aimed to investigate the effect of MHT on temperature alternation induced rat lung injury and explore underlying mechanisms. Male Sprague-Dawley rats were exposed to a cold environment for 1 h and then shifted to a warm environment for 30 min...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28331093/structural-characterization-of-hcov-nl63-n-protein
#12
Bozena Szelazek, Wojciech Kabala, Krzysztof Kus, Michal Zdzalik, Aleksandra Twarda-Clapa, Przemyslaw Golik, Michal Burmistrz, Dominik Florek, Benedykt Wladyka, Krzysztof Pyrc, Grzegorz Dubin
Coronaviruses are responsible for upper and lower respiratory tract infections in humans. It is estimated that 1-10% of the population suffers annually from cold-like symptoms related to infection with HCoV-NL63, an alphacoronavirus. The nucleocapsid (N) protein, the major structural component of the capsid, facilitates RNA packing, links the capsid to the envelope and is also involved in multiple other processes including viral replication and evasion of the immune system. Although the role of N protein in viral replication is relatively well described, no structural data are currently available regarding the N proteins of alphacoronaviruses...
March 22, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28328242/human-airway-epithelial-cells-direct-significant-rhinovirus-replication-in-monocytic-cells-by-enhancing-icam1-expression
#13
Xu Zhou, Lingxiang Zhu, Rosa Lizarraga, Yin Chen
Human rhinovirus (RV) is the major cause of common cold, and it also plays a significant role in asthma and asthma exacerbation. Airway epithelium is the primary site of RV infection and production. In contrast, monocytic cells (e.g. monocytes and macrophages) are believed to be non-permissive for RV replication. Instead, RV has been shown to modulate inflammatory gene expressions in these cells via a replication-independent mechanism. In the present study, RV16 (a major-group RV) replication was found to be significantly enhanced in monocytes when co-cultivated with airway epithelial cells...
March 22, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28327509/stability-study-and-a-14-day-oral-dose-toxicity-in-rats-of-plantain-leaf-extract-plantago-lanceolata-l-syrup
#14
Kenza Mansoor, Fadi Qadan, Mathias Schmidt, Eyad Mallah, Wael Abudayyih, Khalid Matalka
Plants have been used since antiquity to treat and prevent diseases. Plantain (Plantago lanceolata L.) is traditionally used for the treatment of the common cold and associated symptoms such as cough. This study was designed to evaluate the oral toxicity of plantain leaf extract-containing syrup. In preparation of the toxicological examination and to ensure the quality of the herbal preparation, analytical methods were developed and validated, and stability testing was performed. Physicochemical and microbial quality, thin layer chromatography patterns and high performance liquid chromatography fingerprints complied with the specifications during the entire period of stability testing...
March 22, 2017: Scientia Pharmaceutica
https://www.readbyqxmd.com/read/28280296/discharge-and-infection-in-retinoblastoma-post-enucleation-sockets
#15
Daphne L Mourits, Dyonne T Hartong, Andries E Budding, Machteld I Bosscha, H Stevie Tan, Annette C Moll
PURPOSE: To investigate the causes and treatment options for socket discharge and infection in patients enucleated for retinoblastoma (Rb). METHODS: A questionnaire was filled out by (parents of) ocular prosthesis-wearing patients with a history of enucleation as treatment for Rb. We collected data on patients' characteristics, cleaning habits of the prosthesis, frequency of socket irritation, discharge, and infection, and use of antibiotics. With ordinal logistic regression analysis, factors related to the outcome parameters (frequency of irritation, mucoid and purulent discharge) were identified...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28273165/transcriptome-profiling-of-influenza-a-virus-infected-lung-epithelial-a549-cells-with-lariciresinol-4-%C3%AE-d-glucopyranoside-treatment
#16
Beixian Zhou, Jing Li, Xiaoli Liang, Zifeng Yang, Zhihong Jiang
The influenza A virus is an acute contagious pathogen that affects the human respiratory system and can cause severe lung disease and even death. Lariciresinol-4-β-D-glucopyranoside is a lignan that is extracted from Isatis indigotica, which is a medicinal herb plant that was commonly applied to treat infections, the common cold, fever and inflammatory diseases. Our previous study demonstrated that lariciresinol-4-β-D-glucopyranoside possesses anti-viral and anti-inflammatory properties. However, the comprehensive and detailed mechanisms that underlie the effect of lariciresinol-4-β-D-glucopyranoside interventions against influenza virus infection remain to be elucidated...
2017: PloS One
https://www.readbyqxmd.com/read/28258279/management-of-respiratory-tract-infections-in-young-children-a-qualitative-study-of-primary-care-providers-perspectives
#17
Ruby Biezen, Bianca Brijnath, Danilla Grando, Danielle Mazza
Respiratory tract infections in young children are the most common cause of general practice visits in Australia. Despite the availability of clinical practice guidelines, the treatment and management of respiratory tract infections in young children is inconsistent. The aim of the study was to explore the management of respiratory tract infections in young children from a multi-disciplinary perspective using across-sectional qualitative research design based on the theoretical domains framework and the Capability, Opportunity and Motivation-B model...
December 2017: NPJ Primary Care Respiratory Medicine
https://www.readbyqxmd.com/read/28256356/intensive-speech-and-language-therapy-in-patients-with-chronic-aphasia-after-stroke-a-randomised-open-label-blinded-endpoint-controlled-trial-in-a-health-care-setting
#18
Caterina Breitenstein, Tanja Grewe, Agnes Flöel, Wolfram Ziegler, Luise Springer, Peter Martus, Walter Huber, Klaus Willmes, E Bernd Ringelstein, Karl Georg Haeusler, Stefanie Abel, Ralf Glindemann, Frank Domahs, Frank Regenbrecht, Klaus-Jürgen Schlenck, Marion Thomas, Hellmuth Obrig, Ernst de Langen, Roman Rocker, Franziska Wigbers, Christina Rühmkorf, Indra Hempen, Jonathan List, Annette Baumgaertner
BACKGROUND: Treatment guidelines for aphasia recommend intensive speech and language therapy for chronic (≥6 months) aphasia after stroke, but large-scale, class 1 randomised controlled trials on treatment effectiveness are scarce. We aimed to examine whether 3 weeks of intensive speech and language therapy under routine clinical conditions improved verbal communication in daily-life situations in people with chronic aphasia after stroke. METHODS: In this multicentre, parallel group, superiority, open-label, blinded-endpoint, randomised controlled trial, patients aged 70 years or younger with aphasia after stroke lasting for 6 months or more were recruited from 19 inpatient or outpatient rehabilitation centres in Germany...
March 1, 2017: Lancet
https://www.readbyqxmd.com/read/28249303/clinical-parameters-following-multiple-oral-dose-administration-of-a-standardized-andrographis-paniculata-capsule-in-healthy-thai-subjects
#19
Tawit Suriyo, Nanthanit Pholphana, Teerapat Ungtrakul, Nuchanart Rangkadilok, Duangchit Panomvana, Apinya Thiantanawat, Wanwisa Pongpun, Jutamaad Satayavivad
Andrographis paniculata has been widely used in Scandinavian and Asian counties for the treatment of the common cold, fever, and noninfectious diarrhea. The present study was carried out to investigate the physiological effects of short-term multiple dose administration of a standardized A. paniculata capsule used for treatment of the common cold and uncomplicated upper respiratory tract infections, including blood pressure, electrocardiogram, blood chemistry, hematological profiles, urinalysis, and blood coagulation in healthy Thai subjects...
March 1, 2017: Planta Medica
https://www.readbyqxmd.com/read/28238227/hopes-and-challenges-for-the-common-cold
#20
EDITORIAL
Richard A Stein
No abstract text is available yet for this article.
February 2017: International Journal of Clinical Practice
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