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1.
Animals (Basel) ; 14(5)2024 Feb 24.
Article in English | MEDLINE | ID: mdl-38473096

ABSTRACT

The aim of this study was to monitor the behaviour of purebred and crossbred beef cattle reared in the same optimal environmental conditions according to Classyfarm®. Thirty-yearling beef 11.5 months old, including 10 Limousines (LMS), 10 Sardo-Bruna (SRB), and 10 crossbred Limousine × Sardo-Bruna (LMS × SRB), balanced for sex and body weight, were used. Animals were evaluated for five months by two trained operators by SCAN ("sternal resting", "lateral resting", " central or peripheral position in the pen", standing", "walking", "feeding", "drinking", and "ruminating) and FOCUS ("displacement for space", "displacement for feed or water", "play-fighting", "self-grooming", "allo-grooming", "stereotyping", and "mounting") protocols. Feeding behaviour was monitored by a CCTV system. The application of the SCAN sampling evidenced that SRB animals preferred the "standing" activity over the LMS animals, while the LMS × SRB did not differ from them. The "standing" and " ruminating "activities were observed mostly in females than males (p < 0.05). For behaviour parameters assessed by the FOCUS methodology, the n-events of "allo-grooming" were higher (p < 0.05) in SRB than in LMS and LMS × SRB genetic types. Males showed higher (p < 0.05) n-events than females for "play-fighting". For feeding behaviour, the "eating concentrate" activity (expressed as n-events) was higher (p < 0.05) in SRB than LMS × SRB and LMS being intermediate (p < 0.05). The duration of "eating concentrate" (expressed in minutes) was higher (p < 0.05) in females than males. In conclusion, behaviour indicators of animal welfare did not evidence substantial differences among genetic types and between sexes reared in the same "optimal" environmental conditions. Female beef and the autochthon's cattle breed of Sardinia, although typically hardy, showed a wide behavioural repertoire.

2.
Environ Int ; 165: 107323, 2022 07.
Article in English | MEDLINE | ID: mdl-35660951

ABSTRACT

Adverse outcome pathways (AOPs) are formalized and structured linear concepts that connect one molecular initiating event (MIE) to an adverse outcome (AO) via different key events (KE) through key event relationships (KER). They are mainly used in eco-toxicology toxicology, and regulatory health issues. AOPs must respond to specific guidelines from the Organization for Economic Co-operation and Development (OECD) to weight the evidence between each KE. Breast cancer is the deadliest cancer in women with a poor prognosis in case of metastatic breast cancer. The role of the environments in the formation of metastasis has been suggested. We hypothesized that activation of the AhR (MIE), a xenobiotic receptor, could lead to breast cancer related death (AO), through different KEs, constituting a new AOP. An artificial intelligence tool (AOP-helpfinder), which screens the available literature, was used to collect all existing scientific abstracts to build a novel AOP, using a list of key words. Four hundred and seven abstracts were found containing at least a word from our MIE list and either one word from our AO or KE list. A manual curation retained 113 pertinent articles, which were also screened using PubTator. From these analyses, an AOP was created linking the activation of the AhR to breast cancer related death through decreased apoptosis, inflammation, endothelial cell migration, angiogenesis, and invasion. These KEs promote an increased tumor growth, angiogenesis and migration which leads to breast cancer metastasis and breast cancer related death. The evidence of the proposed AOP was weighted using the tailored Bradford Hill criteria and the OECD guidelines. The confidence in our AOP was considered strong. An in vitro validation must be carried out, but our review proposes a strong relationship between AhR activation and breast cancer-related death with an innovative use of an artificial intelligence literature search.


Subject(s)
Adverse Outcome Pathways , Breast Neoplasms , Apoptosis , Artificial Intelligence , Female , Humans , Risk Assessment
3.
Environ Int ; 154: 106574, 2021 09.
Article in English | MEDLINE | ID: mdl-33895441

ABSTRACT

BACKGROUND: Exposure to endocrine disrupting chemicals (EDCs) represents a critical public health threat. Several adverse health outcomes (e.g., cancers, metabolic and neurocognitive/neurodevelopmental disorders, infertility, immune diseases and allergies) are associated with exposure to EDCs. However, the regulatory tests that are currently employed in the EU to identify EDCs do not assess all of the endocrine pathways. OBJECTIVE: Our objective was to explore the literature, guidelines and databases to identify relevant and reliable test methods which could be used for prioritization and regulatory pre-validation of EDCs in missing and urgent key areas. METHODS: Abstracts of articles referenced in PubMed were automatically screened using an updated version of the AOP-helpFinder text mining approach. Other available sources were manually explored. Exclusion criteria (computational methods, specific tests for estrogen receptors, tests under validation or already validated, methods accepted by regulatory bodies) were applied according to the priorities of the French Public-privatE Platform for the Pre-validation of Endocrine disRuptors (PEPPER) characterisation methods. RESULTS: 226 unique non-validated methods were identified. These experimental methods (in vitro and in vivo) were developed for 30 species using diverse techniques (e.g., reporter gene assays and radioimmunoassays). We retrieved bioassays mainly for the reproductive system, growth/developmental systems, lipogenesis/adipogenicity, thyroid, steroidogenesis, liver metabolism-mediated toxicity, and more specifically for the androgen-, thyroid hormone-, glucocorticoid- and aryl hydrocarbon receptors. CONCLUSION: We identified methods to characterize EDCs which could be relevant for regulatory pre-validation and, ultimately for the efficient prevention of EDC-related severe health outcomes. This integrative approach highlights a successful and complementary strategy which combines computational and manual curation approaches.


Subject(s)
Endocrine Disruptors , Artificial Intelligence , Biological Assay , Endocrine Disruptors/toxicity , Endocrine System , Receptors, Estrogen
6.
Cleft Palate Craniofac J ; 56(6): 735-743, 2019 07.
Article in English | MEDLINE | ID: mdl-30426759

ABSTRACT

OBJECTIVE: To describe the conduct of the first multidisciplinary simulation-based workshop in the Middle East/North Africa region and evaluate participant satisfaction. DESIGN: Cross-sectional survey-based evaluation. SETTING: Educational comprehensive multidisciplinary simulation-based cleft care workshop. PARTICIPANTS: Total of 93 workshop participants from over 20 countries. INTERVENTIONS: Three-day educational comprehensive multidisciplinary simulation-based cleft care workshop. MAIN OUTCOME MEASURES: Number of workshop participants, number of participants stratified by specialty, satisfaction with workshop, number of workshop staff, and number of workshop staff stratified by specialty. RESULTS: The workshop included 93 participants from over 20 countries. The response rate was 47.3%, and participants reported high satisfaction with all aspects of the workshop. All participants reported they would recommend it to colleagues (100.0%) and participate again (100.0%). No significant difference was detected based on participant specialty or years of experience. The majority were unaware of other cleft practitioners in their countries (68.2%). CONCLUSION: Multidisciplinary simulation-based cleft care workshops are well received by cleft practitioners in developing countries, serve as a platform for intellectual exchange, and are only possible through strong collaborations. Advocates of international cleft surgery education should translate these successes from the regional to the global arena in order to contribute to sustainable cleft care through education.


Subject(s)
Cleft Palate , Africa, Northern , Cross-Sectional Studies , Developing Countries , Humans , Middle East
7.
Front Genet ; 9: 429, 2018.
Article in English | MEDLINE | ID: mdl-30333853

ABSTRACT

Toxicological responses to chemical insult are largely regulated by transcriptionally activated pathways that may be independent, correlated and partially or fully overlapping. Investigating the dynamics of the interactions between stress responsive transcription factors from toxicogenomic data and defining the signature of each of them is an additional step toward a system level understanding of perturbation driven mechanisms. To this end, we investigated the segregation of the genes belonging to the three following transcriptionally regulated pathways: the AhR pathway, the Nrf2 pathway and the ATF4 pathway. Toxicogenomic datasets from three projects (carcinoGENOMICS, Predict-IV and TG-GATEs) obtained in various experimental conditions (in human and rat in vitro liver and kidney models and rat in vivo, with bolus administration and with repeated doses) were combined and consolidated where overlaps between datasets existed. A bioinformatic analysis was performed to refine pathways' signatures and to create chemical activation capacity scores to classify chemicals by their potency and selectivity of activation of each pathway. With some refinement such an approach may improve chemical safety classification and allow biological read across on a pathway level.

8.
Cleft Palate Craniofac J ; 55(6): 837-843, 2018 07.
Article in English | MEDLINE | ID: mdl-28094564

ABSTRACT

INTRODUCTION: Secondary or residual cleft lip and nasal deformities following primary unilateral or bilateral cleft lip repair are common. Many classification systems have been proposed to describe congenital cleft lip and palate deformities before repair. This article proposes a one-of-a-kind classification system for residual cleft deformities and describes its application to 136 cleft lip revision cases from cleft outreach missions worldwide. METHODS: Patients' demographics and deformities were classified preoperatively, and a database of the classification was created. Postoperatively, the type of surgery performed was added to the database and comparison was done using an independent t test. RESULTS: Kappa coefficient was 0.92 and showed excellent agreement between the type assigned preoperatively to the patient and the type of procedure done. CONCLUSIONS: This system proves to provide good descriptions of the deformities, is user friendly, facilitates the planning of the corrective surgical procedure, and enhances the communicative lingo between surgeons and members of cleft multidisciplinary care teams. It is broadly applicable in outreach missions with limited resources and cleft referral centers with considerable load.


Subject(s)
Cleft Lip/classification , Cleft Lip/surgery , Nose/abnormalities , Nose/surgery , Plastic Surgery Procedures/methods , Reoperation/methods , Adolescent , Adult , Child , Child, Preschool , Female , Humans , Infant , Male , Middle Aged , Treatment Outcome
9.
J Epidemiol Glob Health ; 8(1-2): 82-90, 2018 12.
Article in English | MEDLINE | ID: mdl-30859793

ABSTRACT

The objective is to describe disability risk factors in Lebanese elderly living in rural settings, focusing on the role of polypharmacy, alcohol consumption, and nutrition. The Aging and Malnutrition in Elderly Lebanese study, a cross-sectional population-based one (April 2011-April 2012), included 1200 individuals aged ≥65 years from 24 Lebanese rural districts. The results showed that 288 (24%) were disabled and 287 (23.9%) exposed to polypharmacy. More disabled participants were found among patients exposed to polypharmacy (40.8%) than those who were not (18.8%). Major classes associated with disability were "Parkinson" and "Alzheimer" medications, with "alcohol consumption" being responsible for a major interaction with medications. Chronic diseases, nutrition, and socioeconomic status also had a large effect on disability. Skin ulcer (ORa = 8.569; CI 5.330-14.823), followed by dementia (ORa = 3.667; CI 1.167-8.912), and anti-gout drugs (ORa = 3.962; CI 1.290-7.622) were found to be significantly associated with increased odds of disability the most. Many factors are associated with disability among elderly, including polypharmacy and the association of medications with alcohol. Counseling of the elderly caregivers is warranted.


Subject(s)
Alcohol Drinking/epidemiology , Disability Evaluation , Disabled Persons , Polypharmacy , Quality of Life , Aged , Aged, 80 and over , Chi-Square Distribution , Cross-Sectional Studies , Female , Geriatric Assessment/methods , Humans , Independent Living , Lebanon , Logistic Models , Male , Malnutrition/epidemiology , Nutrition Assessment , Risk Assessment , Rural Population , Socioeconomic Factors
10.
J Cutan Pathol ; 43(10): 815-20, 2016 Oct.
Article in English | MEDLINE | ID: mdl-27251586

ABSTRACT

BACKGROUND: Microscopic and clinical classifications of cutaneous leishmania have been set in the 1980s. Since then, they have been used invariably. Lebanon, a nonendemic country, is suffering from a leishmaniasis epidemic because of the massive population influx from endemic Syria. DESIGN: Patients diagnosed and speciated with leishmania (n = 169) using molecular and microscopic analysis were studied. General demographic data, microscopic data [Ridley's pattern (RP), microscopic pattern, Parasitic Index (PI)] and clinical stage were documented. Clinical score was scored as: 1: inflammatory; 2: proliferative/reorganization; 3: healed phases. The three patterns were studied in comparison to the lesion age and PI. RESULTS: At low PI, the clinical score and microscopic pattern showed healing scores (scores 3 and 4, respectively). In contrast, RP showed variable distribution at low PI. The same pattern is noted when correlating the different patterns with high PI. In comparison to lesion age, none of the three patterns showed the predicted linear correlation with lesion progression. CONCLUSION: In the studied population, the previously adopted classifications did not correlate with the disease progression. Such findings may raise the possibility of evolving disease. The proposed clinical and microscopic patterns showed better correlation with the disease progression.


Subject(s)
Emigration and Immigration , Leishmaniasis, Diffuse Cutaneous/epidemiology , Leishmaniasis, Diffuse Cutaneous/pathology , Adolescent , Adult , Aged , Child , Child, Preschool , Female , Humans , Infant , Lebanon/epidemiology , Male , Middle Aged , Syria/epidemiology
11.
J Reconstr Microsurg ; 32(2): 128-36, 2016 Feb.
Article in English | MEDLINE | ID: mdl-26422173

ABSTRACT

BACKGROUND: The art of reconstructive microsurgery is still progressing after Carrel's original description of "vascular repair" in 1902. Reports of the successful repair of vessels smaller than 1 mm in diameter are currently commonplace. However, the technique of microvascular anastomosis to connect vessels with large diameter discrepancy, greater than 1 mm, has not yet been perfected. This article reports a novel option to anastomose two vessels of different sizes by adapting the diameters of the two stumps and creating a gentle slope that dramatically reduces turbulences in the blood stream. METHODS: The "V-plasty" consists in designing a v-shaped flap on the wall of the large vessel and a longitudinal incision on the small one. The V-flap is then introduced into the V-defect of the small vessel, creating a smooth transition of the diameters between the two vessels. Mathematical calculation of the dimensions of the V-flap was conducted with different ratios' discrepancies of the two vessels ranging from 1.5 to 4. Clinically, 14 microvascular V-plasty were performed in 8 patients. RESULTS: The theoretical simulation and our clinical experience of 14 cases allowed us to propose the different dimensions (length and width) of the V-plasty according to the ratio of vessels discrepancies. CONCLUSION: The V-plasty microanastomosis is an alternative method to attach vessels with size discrepancy. It simply equalizes the donor and recipient vessels' diameters. Its main advantage is to maintain a linear axis between the two vessels whatever the discrepancy ratio is.


Subject(s)
Anastomosis, Surgical , Microsurgery , Plastic Surgery Procedures , Surgical Flaps/blood supply , Vascular Surgical Procedures , Adolescent , Adult , Anastomosis, Surgical/methods , Child , Child, Preschool , Humans , Microsurgery/methods , Middle Aged , Models, Theoretical , Treatment Outcome , Vascular Patency , Vascular Surgical Procedures/methods , Young Adult
12.
Rev. bras. cir. plást ; 31(3): 424-427, 2016. ilus
Article in English, Portuguese | LILACS | ID: biblio-2315

ABSTRACT

Paciente do sexo feminino, saudável, meia-idade e com história prolongada de massas com crescimento lento localizadas bilateralmente e simetricamente nos membros superiores e inferiores, próximas às principais articulações. Exames de imagem e patológicos após excisão das massas revelaram massas constituídas por gordura subcutânea normal. Não houve evidências de lipomas bem-circunscritos. Na revisão de literatura, destacaram-se diversos distúrbios lipo-hipertróficos, com possível apresentação simétrica. As características das afecções encontradas não eram, porém, totalmente concordantes com as características de nossa paciente. Embora não de modo absoluto, a doença que mais estreitamente se assemelhou ao caso foi lipodistrofia simétrica rara, conhecida como doença de Madelung. Dos 150 casos relatados, em apenas 3 foi descrito comprometimento dos membros inferiores, como ocorreu em nosso caso. Este relato apresenta descrição detalhada do caso, seu manejo e seguimento no pós-operatório. Os tipos distintos de lipodistrofias simétricas também são discutidos.


A middle-aged healthy woman who presented with longstanding history of slow growing masses located bilaterally and symmetrically on the upper and lower extremities closed to major joints. Imaging and pathology tests following excision of masses revealed normal subcutaneous fat. There was no evidence of well-circumscribed lipomas. A review of the literature identified a number of lipohypertrophic disorders, which may be present in a symmetrical fashion. The characteristics of the disorders, however, did not fully agree with characteristics observed in our patient. Although not absolute, the closest disease found to fit our case is a rare symmetrical lipodystrophy known as Madelung's disease. Of 150 reported cases, only 3 described involvement of lower extremities as seen in our case. We report a detailed description of a case, its management and post-operative follow-up. Different types of symmetrical lipodytrophies are also discussed.


Subject(s)
Humans , Female , Adult , History, 21st Century , Surgery, Plastic , Lipomatosis, Multiple Symmetrical , Diagnostic Imaging , Review Literature as Topic , Adipose Tissue , Lower Extremity , Subcutaneous Fat , Lipid Metabolism , Lipodystrophy , Lipoma , Lipomatosis , Surgery, Plastic/methods , Lipomatosis, Multiple Symmetrical/surgery , Lipomatosis, Multiple Symmetrical/pathology , Diagnostic Imaging/methods , Adipose Tissue/physiology , Adipose Tissue/pathology , Lower Extremity/surgery , Lower Extremity/pathology , Subcutaneous Fat/surgery , Subcutaneous Fat/growth & development , Subcutaneous Fat/metabolism , Lipid Metabolism/physiology , Lipodystrophy/surgery , Lipoma/surgery , Lipoma/pathology , Lipomatosis/surgery , Lipomatosis/pathology
13.
J Craniofac Surg ; 26(6): 1975-6, 2015 Sep.
Article in English | MEDLINE | ID: mdl-26355980

ABSTRACT

Tying sutures is an integral aspect of any surgery and reliable instruments are essential for hassle-free procedures including craniofacial surgeries. Knot pushers have been widely known for their application in various laparoscopic, arthroscopic, and anal surgeries. The literature reveals numerous articles pertaining to knot pushers, as well as improvements on existing designs. Nevertheless, no application of knot pushers in the surgical repair of cleft palates has been described. We describe a new knot pusher "Papazian Pusher" (PP) finely designed for application in oral surgeries in general and repair of cleft palates in particular. The instrument was used satisfactorily in repair of cleft palate surgeries and no complications were encountered. The PP was found, overall, to be easy to use, and helps in performing faster, stronger, smooth, and secure knots.


Subject(s)
Cleft Palate/surgery , Plastic Surgery Procedures/instrumentation , Suture Techniques/instrumentation , Dioxanes/chemistry , Equipment Design , Humans , Polyesters/chemistry , Polypropylenes/chemistry , Stainless Steel/chemistry , Sterilization/methods , Surface Properties , Sutures
14.
J Craniofac Surg ; 26(3): 800-6, 2015 May.
Article in English | MEDLINE | ID: mdl-25974790

ABSTRACT

The minimal access cranial suspension lift, a short-scar facelift, has been described to correct sagging and laxity of the lower and middle third of the face. It does not, however, fully address the neck or the lateral periorbital area frequently needing rejuvenation in most patients. Another shortcoming of the minimal access cranial suspension lift technique is visible scarring anterior to the temporal hairline that usually occurs despite the suggested surgical maneuvers consisting in zigzag beveled incisions. We describe modifications of the standard subcutaneous musculoaponeurotic system lift technique, increasing its indications for full-face and neck rejuvenation (excluding the forehead) and improving final aesthetic outcome.


Subject(s)
Cicatrix/surgery , Face/surgery , Forehead/surgery , Rejuvenation , Rhytidoplasty/methods , Adult , Aged , Female , Humans , Middle Aged
15.
Ann Plast Surg ; 75(2): 231-45, 2015 Aug.
Article in English | MEDLINE | ID: mdl-25695452

ABSTRACT

Liposuction is the most common cosmetic surgical procedure worldwide. It has evolved from being designed primarily for body contouring to becoming essential adjunct to various other aesthetic procedures, greatly enhancing their outcome. Despite its hard clear differentiation between an aesthetic and therapeutic indication for some pathologic conditions, liposuction has been increasingly applied to a gamut of disorders as a therapeutic tool or to improve function. In fact, liposuction has ceased to define a specific procedure and became synonymous to a surgical technique or tool same as the surgical knife, laser, electrocautery, suture material, or even wound-dressing products. At present, there seems to be an enormous potential for the application of the basic liposuction technique in ablative and reconstructive surgery outside the realm of purely aesthetic procedures. The present review contemplates the various nonaesthetic applications of liposuction, displaying the enormous potentials of what should be considered a basic surgical technique rather than a specific aesthetic procedure. Implications of this new definition of liposuction should induce third-party public payers and insurance companies to reconsider their remuneration and reimbursement policies.


Subject(s)
Lipectomy , Breast/abnormalities , Breast/surgery , Gynecomastia/surgery , Humans , Hypertrophy/surgery , Lipedema/surgery , Lipodystrophy/surgery , Lipoma/surgery , Lipomatosis, Multiple Symmetrical/surgery , Lymphangioma/surgery , Lymphedema/surgery , Melkersson-Rosenthal Syndrome/surgery , Metabolic Syndrome/surgery , Obesity/surgery , Subcutaneous Fat/transplantation
16.
Int Wound J ; 12(2): 169-72, 2015 Apr.
Article in English | MEDLINE | ID: mdl-23556996

ABSTRACT

Stewart-Bluefarb syndrome (SBS), also known as acroangiodermatitis or pseudo-Kaposi, is a condition rarely encountered. It involves skin lesions that are clinically similar to Kaposi sarcoma but are histologically different, and are usually secondary to an underlying arteriovenous fistula. Treatment of this disease usually involves the correction of the underlying vascular abnormality, with the mainstay of therapy ranging from compression devices for venous stasis, limited oral medications (dapsone and erythromycin) and local wound care including topical steroids. Different methods of treatment showed varied success but none is ideal. We report a case of a lower extremity ulcer in a 22-year-old male recently diagnosed with SBS successfully treated with heparan sulphate (Cacipliq20®).


Subject(s)
Acrodermatitis/complications , Acrodermatitis/drug therapy , Heparitin Sulfate/therapeutic use , Leg Ulcer/drug therapy , Acrodermatitis/diagnosis , Arteriovenous Fistula/complications , Arteriovenous Fistula/diagnosis , Chronic Disease , Humans , Leg Ulcer/etiology , Leg Ulcer/pathology , Male , Syndrome , Young Adult
17.
Int J Surg ; 12(10): 1115-22, 2014 Oct.
Article in English | MEDLINE | ID: mdl-25178261

ABSTRACT

INTRODUCTION: With the better understanding of breast cancer history and biology, improved diagnostic modalities and the shift towards minimally invasive surgeries, indications for prophylactic mastectomy, skin sparing or skin reducing mastectomies (SSM/SRM) with nipple areolar complex (NAC) preservation coupled with immediate breast reconstruction are gaining popularity. The authors share their experience and conception with mastectomy and immediate alloplastic breast reconstruction with the esthetic circumvertical mammoplasty pattern combined with the dermal barrier buttress flap. MATERIAL AND METHODS: The described technique was performed for 28 patients presenting for mastectomy and immediate alloplastic breast reconstruction. With close collaboration between the oncologic and plastic surgeons, mastectomy was performed in all cases with the esthetic circumvertical mammoplasty pattern. To achieve safe excision and optimal reconstruction, the standard incisions could be custom designed to fit oncologic requirements and allow the creation of a dermal barrier flap used as a buttress separating the implant from the suture line. CONCLUSION: The circumvertical mastectomy pattern combined with the dermal barrier buttress flap is a versatile option allowing safe reconstruction regardless of the tumor and necessary skin excision location.


Subject(s)
Mammaplasty/methods , Mastectomy/methods , Adult , Aged , Breast Neoplasms/surgery , Esthetics , Female , Humans , Middle Aged , Patient Care Team , Surgical Flaps
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