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Pulmonary infection

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https://www.readbyqxmd.com/read/28822226/perinatal-outcomes-after-previable-preterm-premature-rupture-of-membranes-before-24-weeks-of-gestation
#1
Verena Kiver, Vinzenz Boos, Anke Thomas, Wolfgang Henrich, Alexander Weichert
OBJECTIVE: A current descriptive assessment of perinatal outcomes in pregnancies complicated by previable preterm premature rupture of membranes (pPPROM) at <24 weeks of gestation, after expectant treatment. STUDY DESIGN: Maternal and short-term neonatal data were collected for patients with pPPROM. RESULTS: Seventy-three patients with 93 fetuses were hospitalized with pPPROM at 15-24 weeks' gestation. Among these patients, 27.4% (n=20) chose pregnancy termination, 27...
August 19, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28821804/nos2-deficient-mice-with-hypoxic-necrotizing-lung-lesions-predict-outcomes-of-tuberculosis-chemotherapy-in-humans
#2
Martin Gengenbacher, Maria A Duque-Correa, Peggy Kaiser, Stefanie Schuerer, Doris Lazar, Ulrike Zedler, Stephen T Reece, Amit Nayyar, Stewart T Cole, Vadim Makarov, Clifton E Barry Iii, Véronique Dartois, Stefan H E Kaufmann
During active TB in humans a spectrum of pulmonary granulomas with central necrosis and hypoxia exists. BALB/c mice, predominantly used in TB drug development, do not reproduce this complex pathology thereby inaccurately predicting clinical outcome. We found that Nos2 (-/-) mice incapable of NO-production in immune cells as microbial defence uniformly develop hypoxic necrotizing lung lesions, widely observed in human TB. To study the impact of hypoxic necrosis on the efficacy of antimycobacterials and drug candidates, we subjected Nos2 (-/-) mice with TB to monotherapy before or after establishment of human-like pathology...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821234/incident-mycobacterium-tuberculosis-infection-in-household-contacts-of-infectious-tuberculosis-patients-in-brazil
#3
Edward C Jones-López, Carlos Acuña-Villaorduña, Geisa Fregona, Patricia Marques-Rodrigues, Laura F White, David Jamil Hadad, Lucilia Pereira Dutra-Molina, Solange Vinhas, Avery I McIntosh, Mary Gaeddert, Rodrigo Ribeiro-Rodrigues, Padmini Salgame, Moises Palaci, David Alland, Jerrold J Ellner, Reynaldo Dietze
BACKGROUND: In household contact investigations of tuberculosis (TB), a second tuberculin skin test (TST) obtained several weeks after a first negative result consistently identifies individuals that undergo TST conversion. It remains unclear whether this delay in M. tuberculosis infection is related to differences in the infectious exposure, TST boosting, partial host resistance, or some other factor. METHODS: We conducted a household contact study Vitória, Brazil...
August 18, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28821221/acute-penicillium-marneffei-infection-stimulates-host-m1-m2a-macrophages-polarization-in-balb-c-mice
#4
Xiaoying Dai, Congzheng Mao, Xiuwan Lan, Huan Chen, Meihua Li, Jing Bai, Jingmin Deng, Qiuli Liang, Jianquan Zhang, Xiaoning Zhong, Yi Liang, Jiangtao Fan, Honglin Luo, Zhiyi He
BACKGROUND: Penicillium marneffei (P. marneffei) is a thermally dimorphic fungus pathogen that causes fatal infection. Alveolar macrophages are innate immune cells that have critical roles in protection against pulmonary fungal pathogens and the macrophage polarization state has the potential to be a deciding factor in disease progression or resolution. The aim of this study was to investigate mouse alveolar macrophage polarization states during P. marneffei infection. RESULTS: We used enzyme-linked immunosorbent (ELISA) assays, quantitative real-time PCR (qRT-PCR), and Griess, arginase activity to evaluate the phenotypic markers of alveolar macrophages from BALB/C mice infected with P...
August 18, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28820653/fibrous-skeleton-of-the-heart-anatomic-overview-and-evaluation-of-pathologic-conditions-with-ct-and-mr-imaging
#5
Farhood Saremi, Damián Sánchez-Quintana, Shumpei Mori, Horia Muresian, Diane E Spicer, Cameron Hassani, Robert H Anderson
The fibrous skeleton is concentrated at the base of the ventricular mass. It provides electrical insulation at the atrioventricular level and fibrous continuity for the leaflets of the mitral, aortic, and tricuspid valves. Its components include the fibrous trigones, the fibrous area of aortic-mitral continuity, the subvalvar collar of the mitral valve, the membranous septum, the interleaflet triangles, the tendon of Todaro, and likely the conus ligament. The majority of the mitral annulus is fibrous, but the only true fibrous part of the tricuspid annulus is where the valvar leaflets are attached to the central fibrous body...
August 18, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28820423/-risk-factors-and-special-aspects-forgenital-tuberculosis-diagnostics
#6
G Lortkipanidze, N Kintraia, K Vacharadze, F Tsaava
Was examined 453 women, who applied to National Center for Tuberculosis and Lung Diseases for genital tuberculosis diagnostics. GTB was detected in 289 cases, in 164 cases GTB results was negative (control group). In 10 cases GTB was combined with pulmonary tuberculosis (OR-1,13). Risk factors are previous diseases of female reproductive organs- intracellular infection (OR-1,08), sexually transmitted diseases (OR-1,25), nonspecific inflammatory diseases (OR-1,009), interruption of pregnancy (OR-1,26), artificial abortions (OR-1,11), the most specific signs of Genital Tuberculosis is a pain in the stomach area (P-0,023), dysmenorrhoea (P-0,00001), intestinal obstruction (P-0,0006), heat (P-0,00001), liquid presence in posterior vault (P-0,007), hydrosalpinx (P-0,00001), Fallopian tubes deformation (P-0,000003), oophoritic cyst (P-0,067), adhesive process in small pelvis (P-0,0006)...
July 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28819878/aspergillus-bronchitis-in-patients-with-cystic-fibrosis
#7
Claudia Brandt, Jobst Roehmel, Volker Rickerts, Volker Melichar, Nadja Niemann, Carsten Schwarz
Aspergillus fumigatus frequently colonizes the airways of patients with cystic fibrosis (CF) and may cause various severe infections, such as bronchitis. Serological data, sputum dependent markers and longitudinal data of treated cases of Aspergillus bronchitis were evaluated for further description of this infection. This study, which comprises three substudies, aimed to analyze epidemiological data of Aspergillus in CF and the entity of Aspergillus bronchitis. In a first step, data of the German Cystic Fibrosis Registry were used to evaluate the frequency of Aspergillus colonization in patients with CF (n = 2599)...
August 17, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28819411/comprehensive-study-of-prognostic-risk-factors-of-patients-underwent-pneumonectomy
#8
Chang Gu, Rui Wang, Xufeng Pan, Qingyuan Huang, Jizhuang Luo, Jiajie Zheng, Yiyang Wang, Jianxin Shi, Haiquan Chen
Introduction: To investigate postoperative complications and the prognostic risk factors of patients underwent pneumonectomy. Methods: Four hundred and six patients underwent pneumonectomy were subjected to the study. All the clinicopathologic data including age, gender, smoking history, surgical treatment, postoperative complications, tumor staging and the follow-up information were investigated. Results: The 30-day and 90-day mortality rates were 3.2% and 6.2%, respectively. Postoperative complications developed in 149 patients (36...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28819175/in-vivo-therapeutic-efficacy-of-frog-skin-derived-peptides-against-pseudomonas-aeruginosa-induced-pulmonary-infection
#9
Chen Chen, Maria Luisa Mangoni, Y Peter Di
Pseudomonas aeruginosa is an opportunistic and frequently drug-resistant pulmonary pathogen especially in cystic fibrosis sufferers. Recently, the frog skin-derived antimicrobial peptide (AMP) Esc(1-21) and its diastereomer Esc(1-21)-1c were found to possess potent in vitro antipseudomonal activity. Here, they were first shown to preserve the barrier integrity of airway epithelial cells better than the human AMP LL-37. Furthermore, Esc(1-21)-1c was more efficacious than Esc(1-21) and LL-37 in protecting host from pulmonary bacterial infection after a single intra-tracheal instillation at a very low dosage of 0...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28818102/field-evaluation-of-the-efficacy-of-mycobacterium-bovis-bcg-vaccine-against-tuberculosis-in-goats
#10
Enric Vidal, Claudia Arrieta-Villegas, Miriam Grasa, Irene Mercader, Mariano Domingo, Bernat Pérez de Val
BACKGROUND: Control of animal tuberculosis (TB) through vaccination has emerged as a long-term strategy to complement test and slaughter control strategy. A pilot trial under field conditions was conducted in a goat herd with high TB prevalence to assess the efficacy of the Mycobacterium bovis BCG vaccine. RESULTS: Twenty-three goat kids vaccinated with BCG and other 22 unvaccinated control kids were euthanized at 18 months post-vaccination. Gross pathological and histopathological examination of target tissues was performed for detection of tuberculous lesions and assessment of vaccine efficacy...
August 17, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28817732/enhanced-inflammation-in-new-zealand-white-rabbits-when-mers-cov-reinfection-occurs-in-the-absence-of-neutralizing-antibody
#11
Katherine V Houser, Andrew J Broadbent, Lisa Gretebeck, Leatrice Vogel, Elaine W Lamirande, Troy Sutton, Kevin W Bock, Mahnaz Minai, Marlene Orandle, Ian N Moore, Kanta Subbarao
The Middle East respiratory syndrome coronavirus (MERS-CoV) is a zoonotic betacoronavirus that was first detected in humans in 2012 as a cause of severe acute respiratory disease. As of July 28, 2017, there have been 2,040 confirmed cases with 712 reported deaths. While many infections have been fatal, there have also been a large number of mild or asymptomatic cases discovered through monitoring and contact tracing. New Zealand white rabbits are a possible model for asymptomatic infection with MERS-CoV. In order to discover more about non-lethal infections and to learn whether a single infection with MERS-CoV would protect against reinfection, we inoculated rabbits with MERS-CoV and monitored the antibody and inflammatory response...
August 17, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28817675/deaths-during-tuberculosis-treatment-among-paediatric-patients-in-a-large-tertiary-hospital-in-nigeria
#12
Aishatu L Adamu, Muktar H Aliyu, Najiba Aliyu Galadanci, Baba Maiyaki Musa, Muktar A Gadanya, Auwalu U Gajida, Taiwo G Amole, Imam W Bello, Safiya Gambo, Ibrahim Abubakar
BACKGROUND: Despite availability of effective cure, tuberculosis (TB) remains a leading cause of death in children. In many high-burden countries, childhood TB is underdiagnosed and underreported, and care is often accessed too late, resulting in adverse treatment outcomes. In this study, we examined the time to death and its associated factors among a cohort of children that commenced TB treatment in a large treatment centre in northern Nigeria. METHODS: This is a retrospective cohort study of children that started TB treatment between 2010 and 2014...
2017: PloS One
https://www.readbyqxmd.com/read/28816967/hand-assisted-laparoscopic-surgery-versus-conventional-open-surgery-in-intraoperative-and-postoperative-outcomes-for-colorectal-cancer-an-updated-systematic-review-and-meta-analysis
#13
Xubing Zhang, Qingbin Wu, Chaoyang Gu, Tao Hu, Liang Bi, Ziqiang Wang
AIM: This meta-analysis aims to compare hand-assisted laparoscopic surgery (HALS) and conventional open surgery (OS) for colorectal cancer (CRC) in terms of intraoperative and postoperative outcomes, and to explore the safety, feasibility of HALS for CRC surgery. METHODS: A systematic literature search with no limits was performed in PubMed, Embase, and Medline. The last search was performed on April 23, 2017. The outcomes of interests included intraoperative outcomes (operative time, blood loss, length of incision, transfusion, and lymph nodes harvested), postoperative outcomes (length of hospital stay, length of postoperative hospital stay, time to first flatus, time to first liquid diet, time to first soft diet, time to first bowel movement, postoperative complications, reoperation, ileus, anastomotic leakage, wound infection, urinary complication, pulmonary infection, and mortality)...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28816283/-surgery-treatment-of-ectopic-adrenocorticotrophic-hormone-syndrome
#14
H Fan, H Z Li, W F Xu, Z G Ji, Y S Zhang
OBJECTIVE: To investigation the diagnosis and treatment of ectopic adrenocorticotrophic hormone (ACTH) syndrome. METHODS: The clinical characters of 57 cases of ecotopic ACTH syndrome from Jan. 1996 to Dec. 2016 were collected and analyzed. The 57 cases included 32 males and 25 females. The age ranged from 11 to 68 years (average 32 years). ACTH levels significantly increased from 16.5 to 365.6 pmol/L, with average 77.6 pmol/L (normal range <10.1 pmol/L). The pituitary MRI did not found lesions...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28815644/role-of-%C3%AE-%C3%AE-t-cells-in-exacerbated-airway-inflammation-during-reinfection-of-neonatally-primed-mice-in-adulthood
#15
Jianqi Wu, Lei Xu, Xu Han, Haiyan Hu, Feifei Qi, Song Bai, Ruonan Chai, Yuee Teng, Beixing Liu
Age at primary infection with respiratory syncytial virus (RSV) is a crucial factor in determining the outcome of reinfection. However, how neonatal RSV infection affects the immune system and renders the host more susceptible to reinfection in later life is poorly understood. In the present study, by using BALB/c mice that were first infected with RSV as neonates, the role of γδ T cells in the development of airway inflammation during reinfection in adulthood was investigated. We found that neonatal RSV infection resulted in an aggravated infiltration of mononuclear cells in bronchoalveolar lavage (BAL) fluids, in parallel with a significant increase in the levels of type 2 cytokines in lungs on day 4 after reinfection...
August 16, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28814908/pulmonary-cryptococcosis-presenting-with-lung-mass-report-of-7-cases-and-review-of-literature
#16
Kanet Kanjanapradit, Zdravko Kosjerina, Wiwatana Tanomkiat, Warangkana Keeratichananont, Siripen Panthuwong
Pulmonary cryptococcosis is commonly found in immunocompromised patients. This microorganism rarely infects immunocompetent individuals, and when it does, it causes mild symptoms. The radiological findings of this disease may involve an intrapulmonary mass that mimics lung tumor. The objective of this study was to review the clinicopathological information, radiological findings, and treatment of patients who presented with intrapulmonary mass due to cryptococcosis. This study collected data from 7 patients who were treated at Songklanagarind Hospital, Songkhla, Thailand, between 2009 and 2014...
2017: Clinical Medicine Insights. Pathology
https://www.readbyqxmd.com/read/28813708/bronchial-embolization-with-an-endobronchial-watanabe-spigot-for-broncho-gastric-tube-fistula
#17
Terunaga Inage, Takahiro Nakajima, Taiki Fujiwara, Kentaro Murakami, Masaya Uesato, Hisahiro Matsubara, Ichiro Yoshino
Anastomotic failure of a gastric tube inserted for reconstruction following esophagectomy, which is relatively rare, causes pleural infection and persistent pleural irritation, leading to communication with the pulmonary parenchyma. Although several interventions have been reported to treat such broncho-gastric tube fistulas, refractory cases remain. We herein report the successful treatment by endoscopic bronchial occlusion with an endobronchial Watanabe spigot in 2 patients who suffered from the above complication...
August 17, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28813677/the-il-17f-il-17rc-axis-promotes-respiratory-allergy-in-the-proximal-airways
#18
Antonella De Luca, Marilena Pariano, Barbara Cellini, Claudio Costantini, Valeria Rachela Villella, Shyam Sushama Jose, Melissa Palmieri, Monica Borghi, Claudia Galosi, Giuseppe Paolicelli, Luigi Maiuri, Jan Fric, Teresa Zelante
The interleukin 17 (IL-17) cytokine and receptor family is central to antimicrobial resistance and inflammation in the lung. Mice lacking IL-17A, IL-17F, or the IL-17RA subunit were compared with wild-type mice for susceptibility to airway inflammation in models of infection and allergy. Signaling through IL-17RA was required for efficient microbial clearance and prevention of allergy; in the absence of IL-17RA, signaling through IL-17RC on epithelial cells, predominantly by IL-17F, significantly exacerbated lower airway Aspergillus or Pseudomonas infection and allergic airway inflammation...
August 15, 2017: Cell Reports
https://www.readbyqxmd.com/read/28813449/influenza-virus-infections-among-patients-attending-emergency-department-according-to-main-reason-to-presenting-to-ed-a-3-year-prospective-observational-study-during-seasonal-epidemic-periods
#19
Enrique Casalino, Stephanie Antoniol, Nadhira Fidouh, Christophe Choquet, Jean-Christophe Lucet, Xavier Duval, Benoit Visseaux, Laurent Pereira
OBJECTIVE: The role of influenza virus in patients presenting at ED during seasonal-epidemic periods has not previously been specified. Our objective was to determine its frequency according to clinical presentation. METHODS: This is a prospective observational study conducted during three-consecutive seasonal Influenza epidemics (2013-2015), including patients presenting i) community-acquired pneumonia (CAP); ii) severe acute symptoms (SAS): respiratory failure (RF), hemodynamic failure (HF), cardiac failure (CF), and miscellaneous symptoms (M); iii) symptoms suggesting influenza (PSSI)...
2017: PloS One
https://www.readbyqxmd.com/read/28812940/odontogenic-orbital-abscess-with-intracranial-and-pulmonary-involvement
#20
E Hughes, N Wynne, S Quinn, T Fulcher
A 58-year-old woman presented to the emergency department with left ptosis and complete ophthalmoplegia. Imaging demonstrated a left orbital abscess. Her past medical history included cavitatory lung disease and "aseptic" meningitis 2 months previously. An anaerobic organism and commensal of the oral flora, Peptostreptococcus sp., was cultured from the orbital abscess. The patient was found to have a carious upper molar with chronic buccal abscess, which was extracted. This case presents an uncommon pathogen arising from an odontogenic infection as the etiology for orbital abscess, cavitatory lung disease, and meningitis in one patient...
August 16, 2017: Orbit
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