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https://www.readbyqxmd.com/read/28346935/dysbiosis-in-the-neonatal-period-role-of-cesarean-section
#1
Josef Neu
From epidemiological studies and studies done evaluating microbiomes in infants, there is a strong signal that the infants born by elective cesarean section (C-section) develop microbiota that differs from those babies born by vaginal delivery. Epidemiological studies show increased odds ratios for the development of immunological disorders such as type 1 diabetes, celiac disease, asthma, allergic diseases as well as metabolic diseases such as obesity in babies born by C-section. These are interesting associations, and if supported by additional studies that rigorously control for confounding factors, they will have major public health implications...
2017: Nestlé Nutrition Institute Workshop Series
https://www.readbyqxmd.com/read/28346924/early-life-antibiotic-exposure-gut-microbiota-development-and-predisposition-to-obesity
#2
Meghan B Azad, Shirin Moossavi, Arthur Owora, Shadi Sepehri
Antibiotics are often prescribed inappropriately to infants and young children, with potentially adverse effects on the developing gut microbiota and related metabolic processes. We review evidence from 17 epidemiologic studies suggesting that antibiotic exposure during critical periods of early development may influence weight gain and the development of obesity. Complementary research in both humans and rodents indicates that gut microbiota play a key role in this process, although further research is needed to confirm and characterize the causal mechanisms involved...
2017: Nestlé Nutrition Institute Workshop Series
https://www.readbyqxmd.com/read/28346920/microbial-composition-of-the-initial-colonization-of-newborns
#3
Samuli Rautava
Early-life interaction with indigenous intestinal microbes is a prerequisite for healthy immune and metabolic maturation. Human infants acquire their gut microbiota predominantly from the mother. A considerable inoculum of microbes is received by the neonate during vaginal delivery. Recent observations suggest that human gut colonization may be initiated prenatally by microbes in amniotic fluid, but the significance of this phenomenon remains unknown. After birth, neonatal gut colonization is guided by human milk factors, which selectively promote the growth of specific microbes, as well as by live microbes present in human milk...
2017: Nestlé Nutrition Institute Workshop Series
https://www.readbyqxmd.com/read/28346838/hiv-1-transmission-networks-across-south-korea
#4
Mi Young Ahn, Joel O Wertheim, Woo Joo Kim, Shin-Woo Kim, Jin Soo Lee, Hea Won Ann, Yongduk Jeon, Jin Young Ahn, Je Eun Song, Dong Hyun Oh, Yong Chan Kim, Eun Jin Kim, In Young Jung, Moo Hyun Kim, Wooyoung Jeong, Su Jin Jeong, Nam Su Ku, June Myung Kim, Davey M Smith, Jun Yong Choi
Molecular epidemiology can help clarify the properties and dynamics of HIV-1 transmission networks in both global and regional scales. We studied 143 HIV-1-infected individuals recruited from four medical centers of three cities in South Korea between April 2013 and May 2014. HIV-1 env V3 sequence data were generated (337-793 bp) and analyzed using a pairwise distance-based clustering approach to infer putative transmission networks. Participants whose viruses were ≤2.0% divergent according to Tamura-Nei 93 genetic distance were defined as clustering...
March 27, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28346819/parametric-overdispersed-frailty-models-for-current-status-data
#5
Steven Abrams, Marc Aerts, Geert Molenberghs, Niel Hens
Frailty models have a prominent place in survival analysis to model univariate and multivariate time-to-event data, often complicated by the presence of different types of censoring. In recent years, frailty modeling gained popularity in infectious disease epidemiology to quantify unobserved heterogeneity using Type I interval-censored serological data or current status data. In a multivariate setting, frailty models prove useful to assess the association between infection times related to multiple distinct infections acquired by the same individual...
March 27, 2017: Biometrics
https://www.readbyqxmd.com/read/28346804/hepatitis-b-and-c-virus-infections-among-human-immunodeficiency-virus-infected-people-who-inject-drugs-in-lahore-pakistan
#6
Sana Mansha, Muhammad Imran, Amir Miraj Ul Hussain Shah, Muhsin Jamal, Fayyaz Ahmed, Muhammad Atif, Muhammmad Saleem, Sher Zaman Safi, Zareen Fatima, Ahmed Bilal Waqar
Hepatitis B virus (HBV) and hepatitis C virus (HCV) are the major cause of the global burden of hepatitis. One of the main routes of transmission for both viruses is through exposure to infected blood, which includes sharing blood-contaminated syringes and needles. Human immunodeficiency virus (HIV) attacks the immune system and results in acquired immune deficiency syndrome and opportunistic infections. The objective of this study was to assess the epidemiology of HBV and HCV infections among HIV-infected people who inject drugs (PWID)...
March 27, 2017: Viral Immunology
https://www.readbyqxmd.com/read/28346771/cohort-study-of-oncologic-emergencies-in-patients-with-head-and-neck-cancer
#7
Cielito C Reyes-Gibby, Stephanie C Melkonian, Ehab Y Hanna, Sai-Ching J Yeung, Charles Lu, Mark S Chambers, Srinivas R Banala, Gary B Gunn, Sanjay S Shete
BACKGROUND: Treatments for head and neck squamous cell carcinoma (HNSCC) are associated with toxicities that lead to emergency department presentation. METHODS: We utilized data from an ongoing prospective cohort of newly diagnosed, previously untreated patients (N = 298) with HNSCC to evaluate the association between clinical and epidemiologic factors and risk for and frequency of emergency department presentation. Time to event was calculated from the date of treatment initiation to emergency department presentation, date of death, or current date...
March 27, 2017: Head & Neck
https://www.readbyqxmd.com/read/28346649/the-rising-incidence-of-major-salivary-gland-cancer-in-the-united-states
#8
Anthony G Del Signore, Uchechukwu C Megwalu
We performed a population-based historical cohort study using the Surveillance, Epidemiology, and End Results (SEER) database to determine trends in the incidence of major salivary gland cancer and to evaluate the effect of sex, tumor size, histology, primary site, and extent of disease. Participants were men and women with major salivary gland cancer, diagnosed 1973-2009. The incidence of major salivary gland cancer increased from 10.4 per 1,000,000 in 1973 to 16 per 1,000,000 in 2009 (annual percent change [APC] 0...
March 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28346531/the-prevalence-of-trichomoniasis-and-associated-factors-among-women-treated-at-a-university-hospital-in-southern-brazil
#9
Fabiane Aguiar Dos Anjos Gatti, Etienne Ceolan, Fernando Salles Rodrigues Greco, Paula Costa Santos, Gabriel Baracy Klafke, Gisele Rodrigues de Oliveira, Andrea Von Groll, Ana Maria Barral de Martinez, Carla Vitola Gonçalves, Carlos James Scaini
BACKGROUND: Trichomoniasis is the most prevalent non-viral sexually transmitted disease (STD) in the world; however, it remains a neglected parasitic disease. This study aimed to determine the prevalence of trichomoniasis and its associated epidemiological factors among women treated at a hospital in southern Brazil. METHODOLOGY/PRINCIPAL FINDINGS: A cross-sectional study was performed to determine the prevalence of this infection in women treated at Hospital Universitário (HU) in Rio Grande, Rio Grande do Sul, Brazil, between January 2012 and January 2015...
2017: PloS One
https://www.readbyqxmd.com/read/28346498/characteristics-of-seasonal-influenza-a-and-b-in-latin-america-influenza-surveillance-data-from-ten-countries
#10
Saverio Caini, Wladimir J Alonso, Angel Balmaseda, Alfredo Bruno, Patricia Bustos, Leticia Castillo, Celina de Lozano, Doménica de Mora, Rodrigo A Fasce, Walquiria Aparecida Ferreira de Almeida, Gabriela F Kusznierz, Jenny Lara, Maria Luisa Matute, Brechla Moreno, Claudio Maierovitch Pessanha Henriques, Juan Manuel Rudi, Clotilde El-Guerche Séblain, François Schellevis, John Paget
INTRODUCTION: The increased availability of influenza surveillance data in recent years justifies an actual and more complete overview of influenza epidemiology in Latin America. We compared the influenza surveillance systems and assessed the epidemiology of influenza A and B, including the spatio-temporal patterns of influenza epidemics, in ten countries and sub-national regions in Latin America. METHODS: We aggregated the data by year and country and characteristics of eighty-two years were analysed...
2017: PloS One
https://www.readbyqxmd.com/read/28346267/generalizing-study-results-a-potential-outcomes-perspective
#11
Catherine R Lesko, Ashley L Buchanan, Daniel Westreich, Jessie K Edwards, Michael G Hudgens, Stephen R Cole
Great care is taken in epidemiologic studies to ensure the internal validity of causal effect estimates; however, external validity has received considerably less attention. When the study sample is not a random sample of the target population, the sample average treatment effect, even if internally valid, cannot usually be expected to equal the average treatment effect in the target population. The utility of an effect estimate for planning purposes and decision making will depend on the degree of departure from the true causal effect in the target population due to problems with both internal and external validity...
March 24, 2017: Epidemiology
https://www.readbyqxmd.com/read/28346049/adverse-childhood-experiences-among-veterinary-medical-students-a-multi-site-study
#12
Elizabeth B Strand, Jennifer Brandt, Kenita Rogers, Laurie Fonken, Ruthanne Chun, Peter Conlon, Linda Lord
This research explores Adverse Childhood Experiences (ACEs) among veterinary medical students across six academic institutions of veterinary medicine, and their relationship with depression, stress, and desire to become a veterinarian. Between April 1, 2016 and May 23, 2016, 1,118 veterinary medical students in all 4 years of the curriculum (39% response rate) completed an anonymous web-based questionnaire about ACEs, depression using the Center for Epidemiological Studies Depression scale (CESD), stress using the Perceived Stress Scale (PSS), and the age at which they wanted to become a veterinarian...
March 27, 2017: Journal of Veterinary Medical Education
https://www.readbyqxmd.com/read/28346027/biologically-based-mechanistic-models-of-radiation-related-carcinogenesis-applied-to-epidemiological-data
#13
W Rühm, M Eidemüller, J C Kaiser
PURPOSE: Biologically-based mechanistic models that are used in combining current understanding of human carcinogenesis with epidemiological studies were reviewed. Assessment was made of how well they fit the data, whether they account for non-linear radiobiological low-dose effects, and whether they suggest any implications for the dose response at low doses and dose rates. However, the present paper does not make an attempt to provide a complete review of the existing literature on biologically-based models and their application to epidemiological data...
March 27, 2017: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/28346025/guidance-on-radiation-dose-limits-for-the-lens-of-the-eye-overview-of-the-recommendations-in-ncrp-commentary-no-26
#14
Lawrence T Dauer, Elizabeth A Ainsbury, Joseph Dynlacht, David Hoel, Barbara E K Klein, Don Mayer, Christina R Prescott, Raymond H Thornton, Eliseo Vano, Gayle E Woloschak, Cynthia M Flannery, Lee E Goldstein, Nobuyuki Hamada, Phung K Tran, Michael P Grissom, Eleanor A Blakely
PURPOSE: This review summarizes the conclusions and recommendations of the new NCRP Commentary No. 26 guidance on radiation dose limits for the lens of the eye. The NCRP also addressed radiation protection principles with respect to the lens of the eye, discussed the current understanding of eye biology and lens effects, reviewed and evaluated epidemiology, and assessed exposed populations with the potential for significant radiation exposures to the lens while suggesting monitoring and protection practices...
March 27, 2017: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/28345843/diagnostic-value-of-fine-needle-aspiration-biopsies-and-pathologic-methods-for-benign-and-malignant-breast-masses-and-axillary-node-assessment
#15
Mojtaba Ahmadinejad, Leila Hajimaghsoudi, Seyyed Mohsen Pouryaghobi, Izadmehr Ahmadinejad, Koorosh Ahmadi
Bacground: The goal of this study was to evaluate the fine needle aspiration (FNA) preoperatively together with Touch Print, Crush Print, frozen section and pathologic methods to reach a diagnosis for patients with breast and axillary masses. Methods: This study was conducted on 107 patients, and included 111 samples of breast and 43 of axillary masses taken at surgery. Data on epidemiological and clinical features of the patients were collected using a questionnaire. The results of the methods of FNA, Touch Print, and Crush Print were compared with the results of pathology after operations...
February 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28345835/evolution-of-the-histo-epidemiological-profile-of-urological-cancers-in-togo
#16
Tchin Darré, Koué Folligan, Tchilabalo Matchonna Kpatcha, Kokou Kanassoua, Edoe Sewa, Sassil Daré, Kodjo Tengue, Koffi Amégbor, Gado Napo Koura
Background: Urological cancers are an important public health issue and pose problems with diagnosis and adequate management in developing countries. Our aim was to determine and report epidemiological and histological features of urological cancers in Togo. Materials and methods: A retrospective descriptive study was conducted of cases of urological cancers observed in the laboratory of pathological anatomy of the CHU Tokoin over the last 4 years (2012-2016). The parameters studied were frequency, age, sex, sites of development and histological type...
February 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28345824/epidemiological-characteristics-of-retinoblastoma-in-children-attending-almouassat-university-hospital-damascus-syria-2012-2016
#17
Ahmad Al Hasan, Rashad Murad, Khaldoun Zaid, Jourjous Al Daoud, Khaled Zaid
Retinoblastoma (Rb) is a malignant tumor that originates from the developing retina. Diagnosis is based on clinical signs and symptoms and usually children under the age of five years are affected. Early diagnosis and treatment of Rb and non-ocular tumors can reduce morbidity and increase longevity. Treatment in the early stages may allow a good prognosis and salvage of visual function.The aim of this study is to present descriptive epidemiological aspects of retinoblastomas in children seen at Almouassat University Hospital (AUH) in Damascus, Syria from 1 January 2012 to 31 October 2016In this retrospective, observational hospital survey, medical records of 37 retinoblastoma cases were reviewed...
February 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28345819/outbreak-investigations-and-molecular-characterization-of-foot-and-mouth-disease-viruses-circulating-in-south-west-niger
#18
B Souley Kouato, F M Elliot, D P King, J Hyera, N J Knowles, A B Ludi, V Mioulet, G Matlho, K De Clercq, E Thys, H Marichatou, S Issa, C Saegerman
In Niger, the epidemiological situation regarding foot-and-mouth disease is unclear as many outbreaks are unreported. This study aimed (i) to identify Foot-and-mouth disease virus (FMDV) strains currently circulating in cattle herds, and (ii) to identify risk factors associated with Foot-and-mouth disease (FMD)-seropositive animals in clinical outbreaks. Epithelial tissues (n = 25) and sera (n = 227) were collected from cattle in eight districts of the south-western part of Niger. Testing of clinical material revealed the presence of FMDV serotype O that was characterized within the O/WEST AFRICA topotype...
March 27, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28345787/non-motor-symptoms-and-quality-of-life-in-subjects-with-mild-parkinsonian-signs
#19
J Prasuhn, L Piskol, E-J Vollstedt, J Graf, A Schmidt, V Tadic, S Tunc, J Hampf, E Warrlich, C Bibergeil, J Hagenah, C Klein, M Kasten, N Brüggemann
BACKGROUND: Mild parkinsonian signs (MPS) are frequent in the elderly population and associated with the presence of risk markers for Parkinson's disease (PD). Both MPS and non-motor signs may be present in prodromal PD and may significantly impair quality of life (QoL). OBJECTIVE: To disentangle the contribution of motor impairment and extra-motor manifestations to QoL in subjects with MPS (n=63), manifest PD (n=69), disorders with motor symptoms due to non-neurodegenerative diseases (n=213) and healthy controls (n=258)...
March 27, 2017: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/28345737/-meningeal-carcinomatosis-in-breast-cancer-from-diagnosis-to-treatment
#20
REVIEW
C Elm'hadi, Z Es Sbai, M Reda Khmamouche, M Toreis, R Tanz, H Errihani, M Ichou
The appearance of meningeal carcinomatosis in breast cancer is an event that is being reported increasingly more frequently in the literature. It seems to be related with the lengthening of the patients' lives, improved sensitivity to diagnostic imaging and impermeability of the blood-brain barrier to the chemotherapeutic agents. It is an evolutionary form that affirms the metastatic invasion of the subarachnoidal space and is correlated with limited survival. Its diagnosis is difficult, due to the lack of specificity of the clinical signs dominated by headaches, cognitive disorders and possible signs and symptoms of progressive focal lesions...
April 1, 2017: Revista de Neurologia
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