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Toshinari Mikami, Ronell Bologna-Molina, Adalberto Mosqueda-Taylor, Ikuko Ogawa, Vanesa Pereira-Prado, Naoki Fujiwara, Fabio Ramoa Pires, Roman Carlos, Takashi Takata, Yasunori Takeda
OBJECTIVE: Primordial odontogenic tumour (POT) is a rare benign mixed epithelial and mesenchymal odontogenic tumour. POT is composed of dental papilla-like tissue covered with cuboidal to columnar epithelium that resembles to inner and outer enamel epithelium of the enamel organ without dental hard tissue formation. The aim of this study was to examine pathogenesis of POT based on tumourigenesis and odontogenesis. SUBJECTS AND METHODS: Six cases of POT were submitted for study...
June 16, 2018: Oral Diseases
Zhao Pan, Guodong Ren, Marco A Bologna
The new blister beetle genus Longizonitis Pan and Bologna is described. The genus is referred to the tribe Nemognathini, subfamily Nemognathinae, and its relationships are briefly discussed. It is distributed in southern China (Yunnan, SE Xizang, and probably Fujian) and India (Uttarakhand), in a transitional area between the Palaearctic and Oriental regions. The type species, Longizonitis semirubra (Pic, 1911), comb. n. , is re-described and illustrated.
2018: ZooKeys
Matteo Bologna, Andrea Guerra, Giulia Paparella, Laura Giordo, Danilo Alunni Fegatelli, Anna Rita Vestri, John C Rothwell, Alfredo Berardelli
Many neurophysiological abnormalities have been described in the primary motor cortex of patients with Parkinson's disease. However, it is unclear whether there is any relationship between them and bradykinesia, one of the cardinal motor features of the condition. In the present study we aimed to investigate whether objective measures of bradykinesia in Parkinson's disease have any relationship with neurophysiological measures in primary motor cortex as assessed by means of transcranial magnetic stimulation techniques...
June 12, 2018: Brain: a Journal of Neurology
Matteo Bologna, Alfredo Berardelli
Dystonia is a heterogeneous disorder characterized by involuntary muscle contractions, twisting movements, and abnormal postures in various body regions. It is widely accepted that the basal ganglia are involved in the pathogenesis of dystonia. A growing body of evidence, however, is challenging the traditional view and suggest that the cerebellum may also play a role in dystonia. Studies on animals indicate that experimental manipulations of the cerebellum lead to dystonic-like movements. Several clinical observations, including those from secondary dystonia cases as well as neurophysiologic and neuroimaging studies in human patients, provide further evidence in humans of a possible relationship between cerebellar abnormalities and dystonia...
2018: Handbook of Clinical Neurology
Li-Te Lin, Salvatore Giovanni Vitale, San-Nung Chen, Zhi-Hong Wen, Hsiao-Wen Tsai, Chyi-Uei Chern, Kuan-Hao Tsui
INTRODUCTION: Luteal phase ovarian stimulation (LPOS) has been proven a feasible protocol for infertile patients. High progesterone level in the luteal phase could physiologically inhibit premature luteinizing hormone surge, from which poor ovarian responders (PORs) could obtain benefits. Therefore, we aimed to compare clinical outcomes between LPOS and follicular phase ovarian stimulation (FPOS) protocol in PORs undergoing in vitro fertilization (IVF). METHODS: This prospective pilot study was performed at one tertiary center from January 2016 to October 2017...
June 4, 2018: Advances in Therapy
Ramón G Carreón-Burciaga, Enrique Castañeda-Castaneira, Rogelio González-González, Nelly Molina-Frechero, Enrique Gaona, Ronell Bologna-Molina
Background: Mucositis is an adverse effect of chemotherapy (QT) and/or radiotherapy (RT). The purpose of this study was to investigate the occurrence of oral mucositis in children undergoing cancer treatment. Methods: Fifty-one children with cancer who had received QT, RT, or both (QT-RT) underwent clinical evaluations; World Health Organization criteria were used to establish the degree and severity of mucositis. The correlations between the clinical data, type of cancer, and therapy were statistically analysed...
2018: International Journal of Pediatrics
Ramón G Carreón-Burciaga, Rogelio González-González, Nelly Molina-Frechero, Sandra López-Verdín, Vanesa Pereira-Prado, Ronell Bologna-Molina
Ameloblastomas are a group of benign, locally aggressive, recurrent tumors characterized by their slow and infiltrative growth. E-Cadherin and syndecan-1 are cell adhesion molecules related to the behavior of various tumors, including ameloblastomas. Ninety-nine ameloblastoma samples were studied; the expression of E-cadherin and syndecan-1 were evaluated by immunohistochemistry. E-Cadherin and epithelial syndecan-1 were more highly expressed in intraluminal/luminal unicystic ameloblastoma than in mural unicystic ameloblastoma and solid/multicystic ameloblastoma, whereas the stromal expression of syndecan-1 was higher in mural unicystic ameloblastoma and solid/multicystic ameloblastoma...
2018: Analytical Cellular Pathology (Amsterdam)
Delmira Apellániz, Vanesa Pereira-Prado, Estefania Sicco, Gabriela Vigil-Bastitta, Rogelio González-González, Adalberto Mosqueda-Taylor, Nelly Molina-Frechero, Marcela Hernandez, Celeste Sánchez-Romero, Ronell Bologna-Molina
INTRODUCTION: Solid/conventional ameloblastoma (AM) and unicystic ameloblastoma (UAM) are the most frequent benign epithelial odontogenic tumors located in the maxillary region, and their treatment usually consists of extensive surgical resection. Therefore, it is relevant to study molecular markers to better understand the biological behavior of these tumors. The aim of this study was to describe and compare the expression of proteins related to cellular proliferation: Ki-67 and MCM4-6 complex...
May 1, 2018: International Journal of Surgical Pathology
Taichiro Iki, Cléry Antoine, Nicolas Bologna, Alexis Sarazin, Christopher Brosnan, Nathan Pumplin, Frédéric H T Allain, Olivier Voinnet
In eukaryotes, the RNase-III Dicer often produces length/sequence microRNA (miRNA) variants, called "isomiRs", owing to intrinsic structural/sequence determinants of miRNA precursors (pre-miRNAs). Here, we combined biophysics, genetics and biochemistry to study Arabidopsis miR168, the key feedback-regulator of the central plant silencing effector protein ARGONAUTE1 (AGO1). We identified a motif conserved among plant pre-miR168 orthologs that enables flexible internal base-pairing underlying at least three metastable structural configurations...
May 24, 2018: Molecular Plant
Matthew C Hernandez, Arianna Birindelli, John L Bruce, Johannes J P Buitendag, Victory Y Kong, Mircea Beuran, Johnathon M Aho, Ionut Negoi, Damian L Clarke, Salomone Di Saverio, Martin D Zielinski
BACKGROUND: The American Association for the Surgery of Trauma (AAST) anatomic severity grading system for adhesive small bowel obstruction (ASBO) has demonstrated to be a valid tool in North American patient populations. Using a multi-national patient cohort, we retrospectively assessed the validity the AAST ASBO grading system and estimated disease severity in a global population in order to correlate with several key clinical outcomes. METHODS: Multicenter retrospective review during 2012-2016 from four centers, Minnesota USA, Bologna Italy, Pietermaritzburg South Africa, and Bucharest Romania, was performed...
May 16, 2018: World Journal of Surgery
Giovanni Bellomo, Sara Bologna, Leonardo Gonnelli, Enrico Ravera, Marco Fragai, Moreno Lelli, Claudio Luchinat
The aggregation of Aβ1-40 was monitored by solution NMR, which showed a trend complementary to the one observed by ThT-fluorescence. The NMR data support a kinetic model where Aβ1-40 initially aggregates with the reversible formation of oligomeric species, which then irreversibly convert into fibrils.
May 16, 2018: Chemical Communications: Chem Comm
Zaira Gómez-Herrera, Nelly Molina-Frechero, Pablo Damián-Matsumura, Ronell Bologna-Molina
Proteoglycans (PGs) are essential for normal cellular development; however, alterations of their concentrations can promote tumor growth. To date, a limited number of studies report the presence of PGs in odontogenic tumors (OTs); therefore, the main purpose of this work is to gather the information published on the study of PGs. The search reported 26 articles referring to the presence of different PGs in distinct OTs from 1999 to May 2017. PGs seem to play an important role during OTs' development as they are involved in several tumor processes; however, the number of reports on the study of these molecules is low...
January 2018: Journal of Oral and Maxillofacial Pathology: JOMFP
Marco Bologna, Valentina D A Corino, Eros Montin, Antonella Messina, Giuseppina Calareso, Francesca G Greco, Silvana Sdao, Luca T Mainardi
The objectives of the study are to develop a new way to assess stability and discrimination capacity of radiomic features without the need of test-retest or multiple delineations and to use information obtained to perform a preliminary feature selection. Apparent diffusion coefficient (ADC) maps were computed from diffusion-weighted magnetic resonance images (DW-MRI) of two groups of patients: 18 with soft tissue sarcomas (STS) and 18 with oropharyngeal cancers (OPC). Sixty-nine radiomic features were computed, using three different histogram discretizations (16, 32, and 64 bins)...
May 3, 2018: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
S J Gartenmann, D Hofer, D Wiedemeier, P Sahrmann, T Attin, P R Schmidlin
BACKGROUND: The Bologna reform resulted in a drastic restructuring of pre-clinical training courses at the University of Zurich. The aim of this study was to assess student pre-clinical scaling/root planning skills after just 8.5 hours of manual training. MATERIAL AND METHODS: Three consecutive classes of dental students (n = 41; n = 34; n = 48) were tasked with removing lacquer concrement from the maxillary left canine on a typodont using Gracey and universal (Deppeler M23A) curettes...
April 25, 2018: European Journal of Dental Education: Official Journal of the Association for Dental Education in Europe
A Lauro, S Vaccari, M Cervellera, Giuseppina Casella, V D'Andrea, F M Di Matteo, A Panarese, A Santoro, R Cirocchi, V Tonini
BACKGROUND: Laparoscopy is the gold-standard for cholecystectomy after acute cholecystitis, but the issue is controversial in obese subjects. PATIENTS AND METHODS: We reviewed 464 patients operated for acute cholecystitis (59 open and 405 laparoscopic) over the last five years at St Orsola University Hospital-Bologna and Umberto I University Hospital-Rome, comparing retrospectively: 1) BMI < 30 (397 patients) and BMI =/> 30 (67 patients) and moreover 2) BMI < 25 (207 patients) and BMI =/> 25 (257 patients)...
March 2018: Il Giornale di Chirurgia
Marco A Bologna, Valentina Amore, Monica Pitzalis
The blister beetle (Coleoptera: Meloidae) fauna of Namibia is studied. The species are arranged within a catalogue containing information on their general distribution, including a list of localities and brief taxonomic remarks. Zoogeographic and ecological analyses were carried out and a photographic appendix, with images and maps of almost all Namibian species, is included. According to a chorological analysis, the Namibian blister beetle fauna appears to be zoogeographically distinct because of the dominance of western southern African elements...
January 15, 2018: Zootaxa
Shaojie Chen, Boris Schmidt, Stefano Bordignon, Fabrizio Bologna, Takahiko Nagase, Laura Perrotta, K R Julian Chun
Catheter ablation is the most effective treatment option for patients suffering from symptomatic atrial fibrillation. Electrical isolation of the pulmonary veins is the procedural cornerstone. Point-by-point radiofrequency current energy ablation in combination with a 3D electro-anatomical mapping system is the established approach to ablation. In contrast, cryoballoon ablation uses a single-shot approach to facilitate pulmonary vein isolation. However, fixed cryoballoon diameters (28 mm or 23 mm) and non-balloon compliance can lead to technical difficulties in isolating variable pulmonary vein anatomies...
March 2018: Arrhythmia & Electrophysiology Review
Anna Turkova, Cecilia L Moore, Karina Butler, Alexandra Compagnucci, Yacine Saïdi, Victor Musiime, Annet Nanduudu, Elizabeth Kaudha, Tim R Cressey, Suwalai Chalermpantmetagul, Karen Scott, Lynda Harper, Samuel Montero, Yoann Riault, Torsak Bunupuradah, Alla Volokha, Patricia M Flynn, Rosa Bologna, Jose T Ramos Amador, Steven B Welch, Eleni Nastouli, Nigel Klein, Carlo Giaquinto, Deborah Ford, Abdel Babiker, Diana M Gibb
BACKGROUND: Weekends off antiretroviral therapy (ART) may help engage HIV-1-infected young people facing lifelong treatment. BREATHER showed short cycle therapy (SCT; 5 days on, 2 days off ART) was non-inferior to continuous therapy (CT) over 48 weeks. Planned follow-up was extended to 144 weeks, maintaining original randomisation. METHODS: BREATHER was an open-label, non-inferiority trial. Participants aged 8-24yrs with virological suppression on efavirenz-based first-line ART were randomised 1:1, stratified by age and African/non-African sites, to remain on CT or change to SCT...
2018: PloS One
Gina Agostini, Brigitte M Holt, John H Relethford
OBJECTIVES: To investigate whether diaphyseal and craniofacial variation similarly reflect neutral genetic variation among modern European and South Africans. MATERIALS AND METHODS: Diaphyseal and craniofacial data were collected on English, South European, and South African samples. The Relethford-Blangero model was used to compare predicted among-population relationships generated by limb bones relative to those generated by the crania and, further, to test whether adaptive plasticity affected these predicted relationships...
April 23, 2018: American Journal of Physical Anthropology
Carlotta Baraldi, Lidia Sacchelli, Emi Dika, Martina Lambertini, Cosimo Misciali, Tommaso Bianchi, Pier A Fanti
BACKGROUND: Skin biopsy is an important tool for various skin conditions. However, in the case of leg ulcers, some Authors still consider it highly risky and mandatory only in selected cases. METHODS: To evaluate the rate of adverse events after leg ulcers biopsy in 866 consecutive patients referring to our Wound Care Unit in Bologna from January 2008 to December 2016. Two biopsies were performed (from the border and the centre) by the same dermatologist following a standardized structured protocol...
April 19, 2018: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
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