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https://www.readbyqxmd.com/read/28938749/the-testicular-transcriptome-associated-with-spermatogonia-differentiation-initiated-by-gonadotrophin-stimulation-in-the-juvenile-rhesus-monkey-macaca-mulatta
#1
Suresh Ramaswamy, William H Walker, Paula Aliberti, Rahil Sethi, Gary R Marshall, Alyxzandria Smith, Seyedmehdi Nourashrafeddin, Alicia Belgorosky, Uma R Chandran, Mark P Hedger, Tony M Plant
STUDY QUESTION: What is the genetic landscape within the testis of the juvenile rhesus monkey (Macaca mulatta) that underlies the decision of undifferentiated spermatogonia to commit to a pathway of differentiation when puberty is induced prematurely by exogenous LH and FSH stimulation? SUMMARY ANSWER: Forty-eight hours of gonadotrophin stimulation of the juvenile monkey testis resulted in the appearance of differentiating B spermatogonia and the emergence of 1362 up-regulated and 225 down-regulated testicular mRNAs encoding a complex network of proteins ranging from enzymes regulating Leydig cell steroidogenesis to membrane receptors, and from juxtacrine and paracrine factors to transcriptional factors governing spermatogonial stem cell fate...
October 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28938682/mental-health-of-the-old-and-new-generation-migrant-workers-in-china-who-are-at-greater-risk-for-psychological-distress
#2
Bao-Liang Zhong, Sandra S M Chan, Tie-Bang Liu, Dong Jin, Chi-Yi Hu, Helen F K Chiu
Rural-to-urban migrant workers (MWs) are a large vulnerable population in China and, recently, the new-generation MWs (those born in 1980 or later) have become the majority of this population. Examining difference in the epidemiology of poor mental health between the new- and old-generation (those born before 1980) MWs would facilitate mental health promotion efforts. However, very few related studies are available and they produced conflicting findings. This study investigated intergenerational difference in prevalence and correlates of psychological distress (PD) in MWs...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938253/guidelines-for-the-diagnosis-and-management-of-critical-illness-related-corticosteroid-insufficiency-circi-in-critically-ill-patients-part-i-society-of-critical-care-medicine-sccm-and-european-society-of-intensive-care-medicine-esicm-2017
#3
Djillali Annane, Stephen M Pastores, Bram Rochwerg, Wiebke Arlt, Robert A Balk, Albertus Beishuizen, Josef Briegel, Joseph Carcillo, Mirjam Christ-Crain, Mark S Cooper, Paul E Marik, Gianfranco Umberto Meduri, Keith M Olsen, Sophia C Rodgers, James A Russell, Greet Van den Berghe
OBJECTIVE: To update the 2008 consensus statements for the diagnosis and management of critical illness-related corticosteroid insufficiency (CIRCI) in adult and pediatric patients. PARTICIPANTS: A multispecialty task force of 16 international experts in critical care medicine, endocrinology, and guideline methods, all of them members of the Society of Critical Care Medicine and/or the European Society of Intensive Care Medicine. DESIGN/METHODS: The recommendations were based on the summarized evidence from the 2008 document in addition to more recent findings from an updated systematic review of relevant studies from 2008 to 2017 and were formulated using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) methodology...
September 21, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28938171/behavior-of-radioactive-cesium-during-incineration-of-radioactively-contaminated-wastes-from-decontamination-activities-in-fukushima
#4
Hiroshi Fujiwara, Hidetoshi Kuramochi, Kazutaka Nomura, Tomoharu Maeseto, Masahiro Osako
Large volumes of decontamination wastes (DW) generated by off-site decontamination activities in Fukushima Prefecture have been incinerated since 2015. The behavior of radioactive cesium during incineration of DW was investigated at a working incineration plant. The incineration discharged bottom ash (BA) and fly ash (FA) with similar levels of radiocesium, and the leachability of the radiocesium from both types of ash was very low (<1%). These results are significantly different from those obtained for the incineration of contaminated municipal solid waste (CMSW) reported in earlier studies...
September 18, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28937947/wastewater-treatment-by-means-of-thermophilic-aerobic-membrane-reactors-respirometric-tests-and-numerical-models-for-determination-of-stoichiometric-kinetic-parameters
#5
Maria Cristina Collivignarelli, Giorgio Bertanza, Alessandro Abbà, Vincenzo Torretta, Ioannis Anastasios Katsoyiannis
The present work considers the pollution abatement of wastewaters, the efficiency of which is depending on stringent verification of the performance of wastewater treatment plants. This is very important especially given that eExisting wastewater/aqueous waste treatment plants often need to be upgraded in order to improve their performance. The satisfactory operation of biological treatment plants requires appropriate monitoring, and respirometric techniques are needed to determine the kinetic parameters that regulate biological processes...
September 22, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28937932/health-and-safety-in-organic-farming-a-qualitative-study
#6
Francisco Soto Mas, Alexis J Handal, Rose E Rohrer, Eric Tomalá Viteri
OBJECTIVE: To explore health and safety issues in organic farming, specifically among small farmers in central New Mexico. METHODS: Participants included 10 certified organic producers and 20 workers. Data were collected through semi-structured interviews and observations. RESULTS: The sample consisted of a young, educated, low experienced population which may differ from conventional farmers. Both producers and workers seemed to be aware of the health risks involved with small-scale farming...
September 22, 2017: Journal of Agromedicine
https://www.readbyqxmd.com/read/28937760/a-general-approach-for-calculating-strongly-anharmonic-vibronic-spectra-with-a-high-density-of-states-the-x2b1-x1a1-photoelectron-spectrum-of-difluoromethane
#7
Taras Petrenko, Guntram Rauhut
Due to a low lying fragmentation channel the X2B1 <- X1A1 photoelectron spectrum of difluoromethane is dominated by strong anharmonicity effects. We have used a time-independent eigenstate-free Raman wave function approach (RWF) to calculate the entire spectrum. Vibronic transitions with the most significant Franck-Condon factors were determined by employing our recently developed residual-based algorithm for the calculation of eigenpairs (RACE). An analysis of the factors controlling the accuracy of the predicted bandshape is provided...
September 22, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28937705/interventions-for-treating-genital-chlamydia-trachomatis-infection-in-pregnancy
#8
REVIEW
Catherine Cluver, Natalia Novikova, David Oa Eriksson, Kevin Bengtsson, Göran K Lingman
BACKGROUND: Genital Chlamydia trachomatis (C.trachomatis) infection may lead to pregnancy complications such as miscarriage, preterm labour, low birthweight, preterm rupture of membranes, increased perinatal mortality, postpartum endometritis, chlamydial conjunctivitis and C.trachomatis pneumonia.This review supersedes a previous review on this topic. OBJECTIVES: To establish the most efficacious and best-tolerated therapy for treatment of genital chlamydial infection in preventing maternal infection and adverse neonatal outcomes...
September 22, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28937667/direct-conversion-of-co2-into-liquid-fuels-with-high-selectivity-over-a-bifunctional-catalyst
#9
Peng Gao, Shenggang Li, Xianni Bu, Shanshan Dang, Ziyu Liu, Hui Wang, Liangshu Zhong, Minghuang Qiu, Chengguang Yang, Jun Cai, Wei Wei, Yuhan Sun
Although considerable progress has been made in carbon dioxide (CO2) hydrogenation to various C1 chemicals, it is still a great challenge to synthesize value-added products with two or more carbons, such as gasoline, directly from CO2 because of the extreme inertness of CO2 and a high C-C coupling barrier. Here we present a bifunctional catalyst composed of reducible indium oxides (In2O3) and zeolites that yields a high selectivity to gasoline-range hydrocarbons (78.6%) with a very low methane selectivity (1%)...
October 2017: Nature Chemistry
https://www.readbyqxmd.com/read/28937577/trajectories-of-musculoskeletal-pain-from-adolescence-to-middle-age-the-role-of-early-depressive-symptoms-a-27-year-follow-up-of-the-northern-swedish-cohort
#10
Päivi Leino-Arjas, Kristiina Rajaleid, Gashaw Mekuria, Tapio Nummi, Pekka Virtanen, Anne Hammarström
Depression and musculoskeletal pain are associated, but long-term follow-up studies are rare. We aimed to examine the relationship of early depressive symptoms with developmental patterns of musculoskeletal pain from adolescence to middle age. Adolescents ending compulsory school (age 16) in Luleå, Northern Sweden, in 1981 (n = 1083) were studied and followed up in 1986, 1995, and 2008 (age 43) for musculoskeletal pain. Attrition was very low. Indicators for any and severe pain were based on pain in the neck-shoulders, low back, and the extremities...
September 19, 2017: Pain
https://www.readbyqxmd.com/read/28937372/age-related-reference-intervals-for-immunoglobulin-levels-and-lymphocyte-subsets-in-indian-children
#11
Gaurav Narula, Shanaz Khodaiji, Arun Bableshwar, Manjeet Singh Bindra
BACKGROUND: In children, innate and adaptive immunity varies with age, disease status, and ethnicity, reflected by lymphocyte subsets and serum immunoglobulin (Ig) levels. The paucity of such data from the Indian subcontinent necessitated this study. AIMS: This study aims to determine reference ranges of Ig and lymphocyte subsets in Indian children from birth to 5 years. SETTINGS AND DESIGN: Neonates, infants, and children from a tertiary care hospital were selected and categorized into 5 groups from cord blood/newborn to 5 years...
July 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28937286/comparing-subjective-and-objective-image-quality-at-two-different-radiation-exposure-ranges-of-the-paranasal-sinus-ct-examinations-using-a-volumetric-320-row-detector-ct-system
#12
Berhan Pirimoglu, Recep Sade, Muhammed Sedat Sakat, Hayri Ogul, Suat Eren, Mecit Kantarci
OBJECTIVES: To evaluate image quality of protocol including 135 kVp, 5 mAs and 80 kVp, 5 mAs in the paranasal sinus CT examinations using single volumetric 320-row multidetector CT technique. METHODS: From September to December 2016, both of our control group including 135 kVp and 5 mAs and our study group including 80 kVp and 5 mAs paranasal CT protocols were simultaneously performed on 40 patients using single volumetric 320-row multidetector CT device. Image quality for bony structures, air-filled structures and soft tissues were independently assessed for each group by three blinded observers using a 3-point grading scale (0 = not diagnostic, 1 = partially diagnostic, 2 = diagnostic)...
September 21, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/28937283/engineering-rubisco-activase-from-thermophilic-cyanobacteria-into-high-temperature-sensitive-plants
#13
Chukwuma C Ogbaga, Piotr Stepien, Habib-Ur-Rehman Athar, Muhammad Ashraf
In the past decade, various strategies to improve photosynthesis and crop yield, such as leaf morphology, light interception and use efficiency, biochemistry of light reactions, stomatal conductance, carboxylation efficiency, and source to sink regulation, have been discussed at length. Leaf morphology and physiology are tightly coupled to light capturing efficiency, gas exchange capacity, and temperature regulation. However, apart from the photoprotective mechanism of photosystem-II (PSII), i.e. non-photochemical quenching, very low genetic variation in the components of light reactions has been observed in plants...
September 22, 2017: Critical Reviews in Biotechnology
https://www.readbyqxmd.com/read/28937261/radiation-induced-bystander-effect-in-the-spleen-of-cranially-irradiated-rats
#14
Amal A Mohye El-Din, Abdelrazek Bedeer Abdelrazzak, Moustafa Tawfik Ahmed, Mohamed A El-Missiry
OBJECTIVE: To investigate the radiation induced abscopal effect in terms of oxidative stress, apoptosis and DNA damage in the spleen cells following cranial X-rays irradiation of rats. METHODS: Rats were cranially irradiated using 2 Gy X-rays. Another group was whole-body irradiated with 2 Gy X-rays and a third group was exposed to scattered radiation (measured to be 3 mGy). Twenty four hours following irradiation, sections from the spleen of the rats were dissected as well as plasma samples...
September 20, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28937079/neonatal-bartter-syndrome-in-an-extremely-low-birth-weight-baby
#15
Deeparaj Hegde, Jayashree Mondkar, Nitinkumar Abdagire
Early diagnosis of Bartter syndrome (BS) in the neonatal period is a clinical challenge, more so in an extremely low birth weight (ELBW) baby because of the inherent renal immaturity and the associated difficulty in fluid management. However, once a diagnosis is made, the disorder is known to respond well to fluid and electrolyte management, prostaglandin inhibitors, and potassium-sparing diuretics. Herein, we report a case of neonatal BS in a very premature ELBW infant.
September 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28936968/-progress-of-pain-assessment-and-analgesia-strategy-for-mechanical-ventilation-patients
#16
Qingdong Li, Xianyao Wan
Standardized pain assessment is a precondition of appropriate analgesia for mechanical ventilation patients. However, routine pain assessment rates remain very low in intensive care unit (ICU). Behavioral pain scale (BPS) and critical-care pain observation tool (CPOT) can be used to assess pain in mechanical ventilation patients who are unable to report pain by themselves. No matter what strategy we taken, analgesia-first sedation should be used in priority. Meanwhile, patient-centered and goal-directed sedation strategy should be adopted based on the individual condition...
September 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28936949/-clinical-practice-guidelines-of-hap-vap-in-2016-the-updates
#17
Meizhu Lu, Yan Kang
Hospital acquired pneumonia (HAP) and ventilatorassociated pneumonia (VAP) are common hospital-acquired infections with higher mortality, longer hospital stay and more hospitalization expenses. With the latest research results and evidence-based guideline methodology, Infectious Diseases Society of America (IDSA) and American Thoracic Society (ATS) have collaborated to create updated guidelines for the diagnosis and treatment of HAP and VAP in 2016. It is worth critically reading and thinking that most recommendations are supported by low-quality or very-low quality evidence and some strong recommendations is different from the actual clinical work in China...
September 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28936899/morbidity-and-mortality-of-very-low-birth-weight-multiples-compared-with-singletons
#18
Roser Porta, Eva Capdevila, Francesc Botet, Sergi Verd, Gemma Ginovart, Elisenda Moliner, Marta Nicolàs, Jose Rios
BACKGROUND: Previous studies comparing the neonatal outcome of very low birth weight (VLBW) multiples and singletons have suggested a worse outcome for multiples at gestational ages on the limits of viability. OBJECTIVES: The objective of this study is to determine the neonatal mortality and morbidity of VLBW multiples compared to singletons. METHODS: This is a retrospective study including all infants registered in the Spanish network for infants under 1500 g (SEN1500), over a 12-year period (from 2002 to 2013)...
September 22, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28936890/radiation-dose-reduction-in-plain-radiography-of-the-full-length-lower-extremity-and-full-spine
#19
Mi Ran Jeon, Hee Jin Park, So Yeon Lee, Kyung A Kang, Eun Young Kim, Hyun Pyo Hong, Inyoung Youn
OBJECTIVE: To compare the diagnostic performance of standard- and low-dose radiographs of the full-length lower extremity and spine. MATERIALS AND METHODS: This study included 223 patients who visited our hospital and received full-length lower extremity standing radiographs and full-spine radiographs. We determined the dose area product (DAP) of each image, and effective doses (ED, mSv) were calculated based on the DAP. Subjective evaluation of the full-length radiographs was based on image quality, which was assessed by bony cortex and trabecula evaluation, and on diagnostic performance, which was assessed by leg length measurement...
September 22, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28936627/the-accuracy-of-emergency-weight-estimation-systems-in-children-a-systematic-review-and-meta-analysis
#20
REVIEW
Mike Wells, Lara Nicole Goldstein, Alison Bentley
The safe and effective administration of fluids and medications during the management of medical emergencies in children depends on an appropriately determined dose, based on body weight. Weight can often not be measured in these circumstances and a convenient, quick and accurate method of weight estimation is required. Most methods in current use are not accurate enough, but the newer length-based, habitus-modified (two-dimensional) systems have shown significantly higher accuracy. This meta-analysis evaluated the accuracy of weight estimation systems in children...
September 21, 2017: International Journal of Emergency Medicine
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