Read by QxMD icon Read


Alexandra E Paharik, Wilmara Salgado-Pabon, David K Meyerholz, Mark J White, Patrick M Schlievert, Alexander R Horswill
The Spl proteases are a group of six serine proteases that are encoded on the νSaβ pathogenicity island and are unique to Staphylococcus aureus. Despite their interesting biochemistry, their biological substrates and functions in virulence have been difficult to elucidate. We found that an spl operon mutant of the community-associated methicillin-resistant S. aureus USA300 strain LAC induced localized lung damage in a rabbit model of pneumonia, characterized by bronchopneumonia observed histologically. Disease in the mutant-infected rabbits was restricted in distribution compared to that in wild-type USA300-infected rabbits...
September 2016: MSphere
Jennifer M Willingham-Lane, Londa J Berghaus, Steeve Giguère, Mary K Hondalus
The soil-dwelling, saprophytic actinomycete Rhodococcus equi is a multihost, facultative intracellular pathogen of macrophages. When inhaled by susceptible foals, it causes severe bronchopneumonia. It is also a pathogen of pigs, which may develop submaxillary lymphadenitis upon exposure. R. equi isolates obtained from foals and pigs possess conjugative plasmids housing a pathogenicity island (PAI) containing a novel family of genes of unknown function called the virulence-associated protein or vap family. The PAI regions of the equine and swine plasmids differ in vap gene composition, with equine isolates possessing six vap genes, including the major virulence determinant vapA, while the PAIs of swine isolates house vapB and five other unique vap genes...
September 2016: MSphere
Wedad Abdelrahman, Maureen Y Walsh, Susannah E Hoey, Donal O'Kane
Pyoderma gangrenosum (PG) is a rare inflammatory neutrophilic dermatosis often misdiagnosed. It is uncommon in infants and children accounting for 4% of cases. A one-year-old male in paediatric ICU ventilated for bronchopneumonia was referred with ulcerated areas on his neck and axilla corresponding to sites of recent removal of central and arterial lines. Examination revealed areas of deep ulceration with violaceous undermined borders in keeping with PG. This was supported by a skin biopsy showing a neutrophilic infiltrate in the deeper dermis...
2016: Case Reports in Pediatrics
Nobuhiro Akuzawa, Masahiko Kurabayashi
A 78-year-old Japanese man was admitted to our hospital because of fever lasting for 4 days. His white blood cell count and C-reactive protein level were elevated and computed tomography of the chest showed bronchopneumonia in the right upper lobe of the lung. Streptococcus pyogenes was detected from sputum and blood culture samples on admission and administration of ampicillin/sulbactam was effective. Although our patient's clinical course was good, S. pyogenes pneumonia commonly shows a high rate of fatality and septicemia, and may affect a previously healthy population...
November 2016: Journal of Clinical Medicine Research
Payal Bhat, Nittin Dev Singh, Geeta Devi Leishangthem, Amninder Kaur, Vishal Mahajan, Harmanjit Singh Banga, Rajinder Singh Brar
AIM: Infectious porcine bronchopneumonia, caused by Pasteurella multocida, is a widespread disease of major economic significance. Thus, the aim of the present study was to diagnose swine Pasteurellosis using gross, histopathological, and immunopathological approaches in the swine population of Punjab and to compare the efficacy of immunohistochemical (IHC) techniques with conventional diagnostic techniques. MATERIALS AND METHODS: A total of 71 adult swine lung samples showing gross pneumonic changes were collected along with the associated lymph nodes to carry out the study...
September 2016: Veterinary World
Svjetlana Loga Zec, Kenan Selmanovic, Natasa Loga Andrijic, Azra Kadic, Lamija Zecevic, Lejla Zunic
INTRODUCTION: Bronchopneumonia is the most common clinical manifestation of pneumonia in pediatric population and leading infectious cause of mortality in children under 5 years. Evaluation of treatment involves diagnostic procedures, assessment of disease severity and treatment for disease with an emphasis on vulnerability of the population. AIM: To determine the most commonly used antibiotics at the Pediatric Clinic in Sarajevo and concomitant therapy in the treatment of bronchopneumonia...
June 2016: Medical Archives
Kevin J Downes, Min Dong, Tsuyoshi Fukuda, John P Clancy, Christopher Haffner, Michael R Bennett, Alexander A Vinks, Stuart L Goldstein
BACKGROUND: Tobramycin is frequently used for treatment of bronchopneumonia in patients with cystic fibrosis (CF). Variability in tobramycin clearance (CL) is high in this population with few reliable approaches to guide dosing. OBJECTIVES: We sought to evaluate the pharmacokinetics of once-daily intravenous tobramycin in patients with CF and test the influence of covariates on tobramycin CL, including serum creatinine (SCr) and urinary biomarkers: neutrophil gelatinase-associated lipocalin (NGAL), retinol-binding protein (RBP) and kidney injury molecule-1 (KIM-1)...
September 1, 2016: Journal of Antimicrobial Chemotherapy
Shegu Gilbert, Devender Singh, Sivakumar Manjanaikkanpatti Kaliappan, Sangita Sharma Mehta
We report a 53-year-old female who presented with complaints of sudden onset breathlessness, cough with expectoration for 6 months, and a right lung base lesion in the chest X-ray, which was diagnosed and treated as bronchopneumonia by the family physician. High-resolution computed tomography of the chest was done which revealed a large heterogeneously enhancing mass in the right thoracic cavity. She underwent thoracotomy and was found to have a giant encapsulated and well-circumscribed mass arising from the pleura...
July 2016: Lung India: Official Organ of Indian Chest Society
J T Mackie, A K Gillett, C Palmieri, T Feng, D P Higgins
Chlamydiosis is a common infectious disease of koalas (Phascolarctos cinereus), but Chlamydia spp. have not yet been demonstrated to cause pneumonia in these animals. A juvenile male koala died following an episode of respiratory disease. At necropsy examination, the lung tissue was consolidated. Microscopical lesions in the lung included pyogranulomatous bronchopneumonia, proliferation of bronchiolar and alveolar epithelium and interstitial fibrosis. Hyperplastic bronchiolar epithelial cells contained aggregates of small basophilic punctate organisms, which were confirmed as chlamydiae by transmission electron microscopy and immunohistochemistry...
August 24, 2016: Journal of Comparative Pathology
Sydney Mukaratirwa, Begonya Garcia, Kaori Isobe, Claudio Petterino, Alys Bradley
This study was conducted to characterize lung microscopic lesions in control beagle dogs from inhalation and oral gavage toxicity studies, to determine differences associated with the route of administration, and to discuss distinguishing features from compound-induced lung lesions. Samples from 138 control dogs from oral gavage studies and 124 control dogs from inhalation (vehicle control) studies were evaluated microscopically. There was no significant sex-related difference in the incidence of all lesions...
October 2016: Toxicologic Pathology
Shyamala Pradeepan, Sandy Tun Min, Katy Lai
An otherwise healthy male abbatoir worker presented to his general practitioner with acute hypoxemia due to bronchopneumonia. His only occupational exposure was cleaning cow carcasses being prepared for consumption. Blood cultures were eventually positive for Pasteurella multocida. To our knowledge, this is the first reported case of Pasteurella multocida pneumonia in an abattoir worker, and illustrates the importance of considering this infection in patients with animal exposures.
2016: Respiratory Medicine Case Reports
Masahiko Sumi, Kazumi Norose, Kenji Hikosaka, Hiroko Kaiume, Wataru Takeda, Takehiko Kirihara, Taro Kurihara, Keijiro Sato, Toshimitsu Ueki, Yuki Hiroshima, Hiroshi Kuraishi, Masahide Watanabe, Hikaru Kobayashi
The prognosis of pulmonary toxoplasmosis, including disseminated toxoplasmosis involving the lungs, following hematopoietic stem cell transplantation (HSCT) is extremely poor due to the difficulties associated with early diagnosis and the rapidly progressive deterioration of multiorgan function. In our institution, we identified nine cases of toxoplasmosis, representing incidences of 2.2 and 19.6 % among all HSCT recipients and seropositive HSCT recipients, respectively. Of the patients with toxoplasmosis, six had pulmonary toxoplasmosis...
August 16, 2016: International Journal of Hematology
T K Cooper, J W Griffith, Z C Chroneos, J M Izer, L B Willing, X Peng
Spontaneous age-related lesions of laboratory rabbits are not well documented in the contemporary scientific literature. A retrospective study of diagnostic necropsies of 36 rabbits >2 years of age found a number of common lung lesions. Fibromuscular intimal hyperplasia affected medium and to a lesser extent large pulmonary arteries and was present to a variable extent in all 36 rabbits >2 years of age. The lesions were characterized by fragmentation and/or reduplication of the internal elastic lamina (IEL), proliferation of smoothelin+/alpha-smooth muscle actin (α-SMA)+/vimentin- smooth muscle cells and fewer smoothelin-/α-SMA+/vimentin+ myofibroblasts, and intimal deposition of collagen without thrombosis, embolism, or evidence of pulmonary hypertension...
August 9, 2016: Veterinary Pathology
David X Liu, Peter J Didier, Gail Plauche, Bapi Pahar
Providencia stuartii (P. stuartii) is an opportunistic pathogen and major concern in urinary catheter-related infections in human medicine. Here we report P. stuartii-induced septicemia in an eighteen-year-old, female India-origin Rhesus macaque with multiple traumatic wounds. The animal had neutrophilic leukocytosis, necrosuppurative meningoencephalitis, hypophysitis and bronchopneumonia with vasculitis, thrombosis, and clusters of extracellular Gram-negative bacilli. P. stuartii was isolated from the lesions of the brain and lung and confirmed by PCR and sequencing...
July 28, 2016: Journal of Medical Primatology
Jia-Yi Liao, Tao Zhang
OBJECTIVE: To investigate the distribution characteristics of Mycoplasma pneumoniae (MP), Chlamydia pneumoniae (CP), and Legionella pneumophila (LP) in hospitalized children with acute respiratory tract infection (ARTI). METHODS: A total of 13 198 hospitalized children with ARTI were enrolled as study subjects. Whole blood and urine were collected. The passive agglutination was used to detect serum MP-IgM, ELISA was used to detect serum CP-IgM, and immunochromatography was performed to detect urinary LP antigen...
July 2016: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
Sonia Halioui-Louhaichi, Amel Ben Chehida, Rim Hassouna, Tayeb Massaoud, Marie Françoise Ben Dridi, Sihem Barsaoui, Azza Gharbi-Sammoud, Neji Tebib, Ahmed Maherzi
BACKGROUND: The frequency of cystic fibrosis is unknown in Tunisia, regarding the limited number of reported surveys and patients. AIM: to determine the clinical characteristics, outcome and genetic data of cystic fibrosis in Tunisian pediatric patients. METHODS: Cases of cystic fibrosis managed at pediatric departments of Tunis, during 15 years (1997-2012), were reviewed. RESULTS: 33 children (23 males and 10 females) were enrolled...
August 2015: La Tunisie Médicale
Matthew Bates, Aaron Shibemba, Victor Mudenda, Charles Chimoga, John Tembo, Mwila Kabwe, Moses Chilufya, Michael Hoelscher, Markus Maeurer, Sylvester Sinyangwe, Peter Mwaba, Nathan Kapata, Alimuddin Zumla
BACKGROUND: Autopsy studies are the gold standard for determining cause-of-death and can inform on improved diagnostic strategies and algorithms to improve patient care. We conducted a cross-sectional observational autopsy study to describe the burden of respiratory tract infections in inpatient children who died at the University Teaching Hospital in Lusaka, Zambia. METHODS: Gross pathology was recorded and lung tissue was analysed by histopathology and molecular diagnostics...
2016: BMC Medicine
S Buczinski, J Ménard, E Timsit
BACKGROUND: Thoracic ultrasonography (TUS) is a specific and relatively sensitive method to diagnose bronchopneumonia (BP) in dairy calves. Unfortunately, as it requires specific training and equipment, veterinarians typically base their diagnosis on thoracic auscultation (AUSC), which is rapid and easy to perform. HYPOTHESIS/OBJECTIVES: We hypothesized that the use of TUS, in addition to AUSC, can significantly increase accuracy of BP diagnosis. Therefore, the objectives were to (i) determine the incremental value of TUS over AUSC for diagnosis of BP in preweaned dairy calves and (ii) assess diagnostic accuracy of AUSC...
July 2016: Journal of Veterinary Internal Medicine
S Giguère, L J Berghaus, C D Miller
BACKGROUND: Despite the paucity of data available, stall-side serum amyloid (SAA) assays are commonly used to make diagnostic and treatment decisions in foals with bronchopneumonia. HYPOTHESIS: Measurement of SAA concentrations can accurately differentiate pneumonic from healthy foals. ANIMALS: Fifty-four pneumonic foals between 3 weeks and 5 months of age were compared to 44 healthy controls. In addition, 47 foals on a farm endemic for R...
July 2016: Journal of Veterinary Internal Medicine
Felipe Gomes Campos Amaral, Luiz Guilherme Cernaglia Aureliano Lima, Veruska Menegatti Anastacio Hatanaka, Sheila Aparecida Coelho Siqueira, Amaro Nunes Duarte-Neto
Chronic lymphocytic leukemia (CLL) is a lymphoid neoplasia with the B immunophenotype, which corresponds to the leukemic form of lymphocytic lymphoma. This entity is characterized, in most cases, by immunosuppression due to impaired function of immune cells, hypogammaglobulinemia, bone marrow infiltration, and immune dysfunction due to the neoplasia and the chemotherapy, when prescribed. We describe the case of a 63-year-old woman with a previous diagnosis of advanced CLL, refractory to treatment, who presented respiratory failure at the emergency department and died soon after hospital admission...
January 2016: Autopsy & case reports
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"