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1.
Br Poult Sci ; : 1-12, 2024 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-39212228

RESUMO

1. Genetic improvement and widespread use of artificial selection may have impacted the genetic make-up of Indian chicken breeds. The genetic architecture of contemporary chicken population of India needs to be assessed for future improvement and conservation programmes. This study utilised whole-genome sequences in 180 chicken samples from 16 indigenous breeds, along with the Red Jungle Fowl and the commercial White Leghorn.2. A panel of 76 978 genome-wide single-nucleotide polymorphisms (SNP) was selected for comparative genome analysis after stringent screening. Breeds originating from the eastern regions of India exhibited higher genomic diversity, indicative of a rich repository of distinct germplasm. Conversely, the Uttara breed, from the northern hilly areas, display considerable genetic differentiation with diminished diversity compared to others, underscoring conservation concerns. The average coefficient (FIS) of 0.084 caution the need to mitigate risks associated with inbreeding.3. The study revealed that the analysis of 76 978 genome-wide SNP will serve as a cornerstone in refining conservation strategies, to design interventions with greater precision.4. The contribution of Red Jungle Fowl to the gene pool of all native breeds was supported by this study. Genetic structuring indicated a relationship among breeds based on geographical proximity, underscored by varying levels of admixture.

2.
Arch Orthop Trauma Surg ; 143(6): 3137-3144, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35849186

RESUMO

INTRODUCTION: Given the absence of a satisfying plate system to deal with multifragmentary or subcapital distal ulnar fractures, the Distal Ulna Locking Plate (DUL, I.T.S. GmbH, Graz, Austria) could become a useful treatment option. This study aimed to evaluate the results of this anatomically pre-contoured plate regarding patients with unstable or displaced distal ulnar fractures. METHODS: In a prospective clinical trial, 20 patients (18 female, two male; mean age 70 years (24-91 years)) with unstable or displaced distal ulna fractures between December 2010 and August 2015 were analyzed. All patients were treated with open reduction and internal fixation using the DUL. They were evaluated at three follow-up appointments at 3, 6 and 12 months postoperatively regarding their bone healing, ulnar variance (UV), range of motion (ROM) and grip strength. Patient related outcomes were measured using the Disability of the Arm, Shoulder and Hand (DASH), the Patient Rated Wrist Evaluation (PRWE) questionnaires, and the Visual Analogue Scale (VAS). The results after one year were compared to the outcome of the healthy contralateral side. RESULTS: All fractures treated with open reduction and internal fixation using the Distal Ulna Locking Plate healed within 6 months and showed stable ulnar variances after surgery. ROM (rotational plane 81.1 ± 9.0°, sagittal plane 55.1 ± 14.6°, frontal plane 33.0 ± 9.4°) and grip strength (18.7 ± 7.1 N) at the follow-up after 12 month had similar values compared with the uninjured side. The mean DASH score (36.4 ± 29.0), the PRWE-score (14.5 ± 27.0), and the VAS (at rest 0.5 ± 1.1, during activity 1.2 ± 2.4) after one year had no significant difference to the uninjured side. The surgeon's overall satisfaction rate regarding plate handling reached 81.8%. CONCLUSION: Stabilization of unstable distal ulna fractures using the DUL restores nearly normal anatomy and function. Its pre-countered design, volar placement, and enhanced stability present a satisfying plate system. TRIAL REGISTRATION:  The trial was retrospectively Registered at www. CLINICALTRIALS: gov on 16 December 2021 (Trial Registration Number: NCT05329012).


Assuntos
Fraturas do Rádio , Fraturas da Ulna , Fraturas do Punho , Humanos , Masculino , Feminino , Idoso , Punho , Fraturas do Rádio/cirurgia , Ulna/cirurgia , Fixação Interna de Fraturas/métodos , Fraturas da Ulna/cirurgia , Placas Ósseas , Resultado do Tratamento , Amplitude de Movimento Articular
3.
Ultrasound Obstet Gynecol ; 57(5): 821-828, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-32770812

RESUMO

OBJECTIVE: To describe the clinical and ultrasound characteristics of accessory cavitated uterine malformations (ACUMs). METHODS: This was a single-center observational study of consecutive patients diagnosed with an ACUM, who had undergone an ultrasound examination by an experienced ultrasound examiner between January 2013 and May 2019, identified retrospectively from medical records. ACUM was diagnosed when a cavitated lesion with a myometrial mantle and echogenic contents was seen within the anterolateral wall of the myometrium beneath the insertion of the round ligament. In all women, presenting symptoms and clinical history were recorded along with detailed descriptions of the lesions and any concomitant pelvic abnormalities. RESULTS: Twenty patients diagnosed with an ACUM were identified. Median age was 29.2 (interquartile range, 25.0-35.8) years. None of the women was premenarchal or postmenopausal. All of the women reported painful periods or pelvic pain and none of them reported subfertility. Twelve of the ACUMs were in the right anterolateral myometrium and eight were in the left anterolateral myometrium. Both a myometrial mantle and a fluid-filled cavity were considered to be defining features on ultrasound. The fluid contained within the cavity was either echogenic with a ground-glass appearance or hyperechoic. All of the lesions were spherical in shape. The Doppler flow seen in the outer rim was not markedly different from that of the surrounding myometrium, and the content of the cavity was avascular on Doppler examination. The mean outer cavity diameter of the ACUMs was 22.8 (95% CI, 20.9-24.8) mm and the mean internal cavity diameter was 14.1 (95% CI, 12.2-16.1) mm. Four women opted for transvaginal ultrasound-guided alcohol sclerotherapy. Surgical excision was carried out in eight cases, and the diagnosis was confirmed on histopathological examination in all of them. CONCLUSIONS: ACUMs are a uterine abnormality with a distinct ultrasound appearance, which are associated with dysmenorrhea and chronic pelvic pain. Knowledge of their typical appearance on ultrasound could facilitate early detection and treatment. There are several treatment options for ACUM, ranging from simple analgesia to complete excision. Further prospective and longitudinal studies are required to study the prevalence and natural history of this condition. © 2020 International Society of Ultrasound in Obstetrics and Gynecology.


Assuntos
Ecocardiografia Doppler , Miométrio/anormalidades , Anormalidades Urogenitais/diagnóstico por imagem , Útero/anormalidades , Adulto , Dor Crônica/congênito , Dor Crônica/diagnóstico por imagem , Dismenorreia/congênito , Dismenorreia/diagnóstico por imagem , Feminino , Humanos , Miométrio/diagnóstico por imagem , Dor Pélvica/congênito , Dor Pélvica/diagnóstico por imagem , Estudos Retrospectivos , Ligamento Redondo do Útero/diagnóstico por imagem , Anormalidades Urogenitais/complicações , Útero/diagnóstico por imagem
4.
Ann Oncol ; 30(11): 1831-1839, 2019 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-31501887

RESUMO

BACKGROUND: Treatment options are limited for patients with recurrent or metastatic squamous cell carcinoma of the head and neck (HNSCC) following progression after first-line platinum-based therapy, particularly in Asian countries. PATIENTS AND METHODS: In this randomised, open-label, phase III trial, we enrolled Asian patients aged ≥18 years, with histologically or cytologically confirmed recurrent/metastatic HNSCC following first-line platinum-based therapy who were not amenable for salvage surgery or radiotherapy, and had an Eastern Cooperative Oncology Group (ECOG) performance status of 0/1. Patients were randomised (2 : 1) to receive oral afatinib (40 mg/day) or intravenous methotrexate (40 mg/m2/week), stratified by ECOG performance status and prior EGFR-targeted antibody therapy. The primary end point was progression-free survival (PFS) assessed by an independent central review committee blinded to treatment allocation. RESULTS: A total of 340 patients were randomised (228 afatinib; 112 methotrexate). After a median follow-up of 6.4 months, afatinib significantly decreased the risk of progression/death by 37% versus methotrexate (hazard ratio 0.63; 95% confidence interval 0.48-0.82; P = 0.0005; median 2.9 versus 2.6 months; landmark analysis at 12 and 24 weeks, 58% versus 41%, 21% versus 9%). Improved PFS was complemented by quality of life benefits. Objective response rate was 28% with afatinib and 13% with methotrexate. There was no significant difference in overall survival. The most common grade ≥3 drug-related adverse events were rash/acne (4% with afatinib versus 0% with methotrexate), diarrhoea (4% versus 0%), fatigue (1% versus 5%), anaemia (<1% versus 5%) and leukopenia (0% versus 5%). CONCLUSIONS: Consistent with the phase III LUX-Head & Neck 1 trial, afatinib significantly improved PFS versus methotrexate, with a manageable safety profile. These results demonstrate the efficacy and feasibility of afatinib as a second-line treatment option for certain patients with recurrent or metastatic HNSCC. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT01856478.


Assuntos
Afatinib/administração & dosagem , Antineoplásicos/administração & dosagem , Neoplasias de Cabeça e Pescoço/tratamento farmacológico , Metotrexato/administração & dosagem , Recidiva Local de Neoplasia/tratamento farmacológico , Carcinoma de Células Escamosas de Cabeça e Pescoço/tratamento farmacológico , Adulto , Afatinib/efeitos adversos , Idoso , Idoso de 80 Anos ou mais , Antineoplásicos/efeitos adversos , Povo Asiático , Carboplatina/uso terapêutico , Cisplatino/uso terapêutico , Progressão da Doença , Intervalo Livre de Doença , Estudos de Viabilidade , Feminino , Neoplasias de Cabeça e Pescoço/mortalidade , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Masculino , Metotrexato/efeitos adversos , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/mortalidade , Recidiva Local de Neoplasia/patologia , Intervalo Livre de Progressão , Carcinoma de Células Escamosas de Cabeça e Pescoço/mortalidade , Carcinoma de Células Escamosas de Cabeça e Pescoço/patologia
5.
Br J Nutr ; 119(5): 543-551, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29508694

RESUMO

Low energy and protein intakes have been associated with an increased risk of malnutrition in outpatients with chronic obstructive pulmonary disease (COPD). We aimed to assess the energy and protein intakes of hospitalised COPD patients according to nutritional risk status and requirements, and the relative contribution from meals, snacks, drinks and oral nutritional supplements (ONS), and to examine whether either energy or protein intake predicts outcomes. Subjects were COPD patients (n 99) admitted to Landspitali University Hospital in 1 year (March 2015-March 2016). Patients were screened for nutritional risk using a validated screening tool, and energy and protein intake for 3 d, 1-5 d after admission to the hospital, was estimated using a validated plate diagram sheet. The percentage of patients reaching energy and protein intake ≥75 % of requirements was on average 59 and 37 %, respectively. Malnourished patients consumed less at mealtimes and more from ONS than lower-risk patients, resulting in no difference in total energy and protein intakes between groups. No clear associations between energy or protein intake and outcomes were found, although the association between energy intake, as percentage of requirement, and mortality at 12 months of follow-up was of borderline significance (OR 0·12; 95 % CI 0·01, 1·15; P=0·066). Energy and protein intakes during hospitalisation in the study population failed to meet requirements. Further studies are needed on how to increase energy and protein intakes during hospitalisation and after discharge and to assess whether higher intake in relation to requirement of hospitalised COPD patients results in better outcomes.


Assuntos
Proteínas Alimentares/administração & dosagem , Ingestão de Energia , Hospitalização , Desnutrição , Necessidades Nutricionais , Estado Nutricional , Doença Pulmonar Obstrutiva Crônica , Idoso , Suplementos Nutricionais , Feminino , Hospitais Universitários , Humanos , Tempo de Internação , Masculino , Desnutrição/etiologia , Desnutrição/mortalidade , Refeições , Readmissão do Paciente , Estudos Prospectivos , Doença Pulmonar Obstrutiva Crônica/mortalidade , Fatores de Risco
6.
Reprod Domest Anim ; 53(4): 914-920, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-29604148

RESUMO

In India, cross-breeding of indigenous cattle with exotic cattle such as Holstein Friesian and Jersey has been going on since last four decades to improve milk production. Although it has led to increased milk yield, the subfertility in male cross-bred progeny has remained a significant problem. Epigenetic modifications (DNA methylation, histone modifications and chromatin remodelling) are regarded as key players influencing gene expression. DAZL gene plays an important role in germline development and gametogenesis. The methylation and mRNA expression level of this gene have been significantly negatively correlated in the testes of cattle-yak hybrids and their parents. This study analysed the methylation profile of DAZL gene promoter in bull spermatozoa in an attempt to speculate its role in cross-bred cattle subfertility. Semen samples from Sahiwal, Holstein Friesian and Frieswal bulls (Sahiwal X Holstein Friesian) with varying semen motility parameters were collected, and DNA was isolated. Methylation-specific primers were used to amplify part of promoter and exon 1 of DAZL gene using bisulphite-converted DNA. The amplified products were sequenced after cloning in pTZ57R/T vector. Sequence analysis revealed significantly higher DNA methylation of DAZL gene in Frieswal bulls with poor motility (28.26%) as compared to medium (15.21%) and high motility phenotype (6.52%). In pure-bred counterparts, Sahiwal and Holstein Friesian, epigenetic marks were more in the former (15.21%) than the latter (4.34%), but in both cases, the values were lower as compared to the poor motility Frieswal bulls. This suggests that differential hypermethylation of the CpG islands could possibly influence reproductive parameters in bovines.


Assuntos
Bovinos/fisiologia , Metilação de DNA , Regiões Promotoras Genéticas , Proteínas de Ligação a RNA/metabolismo , Análise do Sêmen/veterinária , Sêmen/fisiologia , Animais , Predisposição Genética para Doença , Infertilidade Masculina/genética , Masculino , Proteínas de Ligação a RNA/genética , Motilidade dos Espermatozoides , Espermatozoides
7.
Arch Orthop Trauma Surg ; 138(3): 435-442, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29353422

RESUMO

Different types of intraosseous suture anchors can be used for thumb ulnar collateral ligament (UCL) repair surgery. Some of them have already been tested biomechanically in intact bone; however, there exists little knowledge of their stability when implanted in avulsion fracture. In this biomechanical in vitro study, three anchor types (hard, soft and novel BoneWelding) were tested on 24 fresh frozen human thumbs from 12 body donors. After the repair of an iatrogenic ligamentous UCL rupture, the thumbs were cyclically loaded. A new set of anchors was implanted at the contralateral radial side of the same specimen into an iatrogenic avulsion fracture and pulled out of the bone. The most common mode of failure in ligamentous UCL repairs was the suture-ligament interface, especially when using soft anchors. In avulsion fractures, the novel anchor withstood significantly higher pullout forces than the hard or soft anchor (65 N vs. 42 N vs. 27 N; p = .006). The BW anchor provides sufficient anchorage in trabecular bone for UCL repair in case of avulsion fractures.


Assuntos
Ligamento Colateral Ulnar/cirurgia , Âncoras de Sutura , Polegar/cirurgia , Idoso , Idoso de 80 Anos ou mais , Cadáver , Ligamento Colateral Ulnar/lesões , Desenho de Equipamento , Feminino , Fratura Avulsão/cirurgia , Humanos , Masculino , Teste de Materiais , Pessoa de Meia-Idade
8.
Arch Orthop Trauma Surg ; 138(6): 879-885, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29696363

RESUMO

INTRODUCTION: In case of distal radius fractures (DRF) the distal fragment generally displaces either dorsally or volarly. Scientific literature however, seldom differentiates between volarly and dorsally displaced DRFs when reporting results. It is no clear, if the direction of displacement has an influence on the clinical and radiological outcome. This study was intended to evaluate the influence of displacement direction in adult patients with surgically treated Colles or Smith type fractures. PATIENTS AND METHODS: After a mean follow up (FU) time of above 5 years, 50 patients who underwent open reduction and internal fixation for DRFs (25 Smith type fractures, 25 Colles type fractures) were included. Upon FU, standard X-rays and a clinical evaluation as well as evaluation scores were raised and analysed. RESULTS: Clinical evaluation showed no difference between the Colles and the Smith group. Radiologic and clinical results for the Colles group showed diminished flexion compared to the healthy wrist, decreased radial inclination and dorsal tilt during FU and progression of osteoarthritis. For the Smith group decreased grip strength compared to the healthy wrist and osteoarthritis-progression was found. For both groups there was no correlation between radiologic values, grip strength, arthrosis grading, disability of arm, shoulder and hand score and patient rated wrist evaluation score. DISCUSSION: Decreased flexion in combination with a decreased dorsopalmar tilt might hint towards a mechanical inhibition in the Colles group. Altogether, the study showed good clinical outcome with satisfactory radiological result. As all patients showed arthrosis progression, the fracture per se is to be seen as a prearthrotic factor. It still remains unclear which measures could be taken to prevent this.


Assuntos
Placas Ósseas , Fixação Interna de Fraturas/métodos , Fraturas do Rádio/cirurgia , Traumatismos do Punho/cirurgia , Articulação do Punho/cirurgia , Adulto , Idoso , Feminino , Fixação Interna de Fraturas/instrumentação , Humanos , Masculino , Pessoa de Meia-Idade
9.
Arch Orthop Trauma Surg ; 137(6): 813-816, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28251281

RESUMO

We report on a patient who developed septic wrist arthritis with destruction of the entire carpus due to osteomyelitis following percutaneous pinning of a fifth metacarpal base fracture. Arthrodesis was performed using a 6 cm vascularized iliac bone graft. This case report may sharpen the surgeon's awareness of risks in orthopedic surgeries, even though the procedure seems to be rather simple and the patient is young and seems to be healthy.


Assuntos
Artrite Infecciosa/cirurgia , Artrodese/métodos , Pinos Ortopédicos , Ossos do Carpo/cirurgia , Articulações Carpometacarpais/cirurgia , Articulação do Punho/cirurgia , Adulto , Artrite Infecciosa/diagnóstico , Transplante Ósseo/métodos , Ossos do Carpo/diagnóstico por imagem , Articulações Carpometacarpais/diagnóstico por imagem , Humanos , Ílio/transplante , Masculino
10.
J Assoc Physicians India ; 65(5): 93-94, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-28598058

RESUMO

BK virus (BKV) hemorrhagic cystitis (HC) is a serious cause of morbidity and mortality after allogeneic hematopoietic SCT (allo-HSCT) in patients with hematological malignancies. Around half of allogenic HSCT patients present with BKV viruria at some point after HSCT; about 5-40% of these patients subsequently develop active HC. Supportive care including bladder irrigation, blood transfusions and symptomatic pain management remains the mainstay of therapy; the acyclic nucleoside analogue cidofovir is currently the front-line drug for BKV-HC treatment. Here we report the first case of severe hemorrhagic cystitis from India who was successfully treated with low dose cidofovir therapy.


Assuntos
Antivirais/uso terapêutico , Cistite/virologia , Citosina/análogos & derivados , Hemorragia/virologia , Organofosfonatos/uso terapêutico , Infecções por Polyomavirus/tratamento farmacológico , Infecções Tumorais por Vírus/tratamento farmacológico , Adulto , Vírus BK , Cidofovir , Citosina/uso terapêutico , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Humanos , Masculino , Infecções por Polyomavirus/complicações , Transplante Homólogo , Infecções Tumorais por Vírus/complicações
11.
Orthopade ; 46(4): 321-327, 2017 Apr.
Artigo em Alemão | MEDLINE | ID: mdl-28138723

RESUMO

BACKGROUND: Dupuytren's disease as a benign fibroproliferative disease leads to hyperplasia of the collagen fibers of the fascia of the palm, which can result in severe impairment of the functionality of the hand. OBJECTIVES: Examination of the significance of non-operative treatment of Dupuytren's disease with injectable collagenase clostridium histolyticum (CCH) METHODS: Observation of 120 patients treated with injectable collagenase. Documentation of the range of motion before the intervention, 12 months after the intervention, and documentation of any adverse events. RESULTS: All in all, 120 patients were treated (107 male, 13 female) (mean age 62 years, range 30-84 years). In 49% the little finger, in 44% the ring finger, in 4% the middle finger, and in 3% the index finger were treated. Full release was accomplished in 71%, partial release in 26%, and no change in 3% of the patients. The median contracture before the treatment was 37° for the metacarpophalangeal (MP) joint (range 25-100°) and 51° for the proximal interphalangeal (PIP) joint (range 30-97°). After 12 months, the mean contracture for the MP joint was 9° (range 0-25°) and 21° (range 10-36°) or the PIP joint. Adverse events occurred in 96% of patients within 3 months after treatment. No tendon ruptures, anaphylactic reactions, nerve, or ligament injuries were observed.


Assuntos
Contratura de Dupuytren/tratamento farmacológico , Contratura de Dupuytren/patologia , Colagenase Microbiana/administração & dosagem , Adulto , Idoso , Idoso de 80 Anos ou mais , Medicina Baseada em Evidências , Humanos , Injeções Intralesionais , Estudos Longitudinais , Pessoa de Meia-Idade , Resultado do Tratamento
12.
Am J Transplant ; 16(3): 773-82, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26780159

RESUMO

The resuscitation of hearts donated after circulatory death (DCD) is gaining widespread interest; however, the method of initial reperfusion (IR) that optimizes functional recovery has not been elucidated. We sought to determine the impact of IR temperature on the recovery of myocardial function during ex vivo heart perfusion (EVHP). Eighteen pigs were anesthetized, mechanical ventilation was discontinued, and cardiac arrest ensued. A 15-min standoff period was observed and then hearts were reperfused for 3 min at three different temperatures (5°C; N = 6, 25°C; N = 5, and 35°C; N = 7) with a normokalemic adenosine-lidocaine crystalloid cardioplegia. Hearts then underwent normothermic EVHP for 6 h during which time myocardial function was assessed in a working mode. We found that IR coronary blood flow differed among treatment groups (5°C = 483 ± 53, 25°C = 722 ± 60, 35°C = 906 ± 36 mL/min, p < 0.01). During subsequent EVHP, less myocardial injury (troponin I: 5°C = 91 ± 6, 25°C = 64 ± 16, 35°C = 57 ± 7 pg/mL/g, p = 0.04) and greater preservation of endothelial cell integrity (electron microscopy injury score: 5°C = 3.2 ± 0.5, 25°C = 1.8 ± 0.2, 35°C = 1.7 ± 0.3, p = 0.01) were evident in hearts initially reperfused at warmer temperatures. IR under profoundly hypothermic conditions impaired the recovery of myocardial function (cardiac index: 5°C = 3.9 ± 0.8, 25°C = 6.2 ± 0.4, 35°C = 6.5 ± 0.6 mL/minute/g, p = 0.03) during EVHP. We conclude that the avoidance of profound hypothermia during IR minimizes injury and improves the functional recovery of DCD hearts.


Assuntos
Coração/fisiologia , Hipotermia/prevenção & controle , Isquemia Miocárdica/terapia , Reperfusão Miocárdica/métodos , Preservação de Órgãos/métodos , Recuperação de Função Fisiológica , Coleta de Tecidos e Órgãos/métodos , Animais , Parada Cardíaca Induzida , Transplante de Coração , Suínos
13.
Am J Transplant ; 16(3): 783-93, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26663659

RESUMO

Hearts donated following circulatory death (DCD) may represent an additional source of organs for transplantation; however, the impact of donor extubation on the DCD heart has not been well characterized. We sought to describe the physiologic changes that occur following withdrawal of life-sustaining therapy (WLST) in a porcine model of DCD. Physiologic changes were monitored continuously for 20 min following WLST. Ventricular pressure, volume, and function were recorded using a conductance catheter placed into the right (N = 8) and left (N = 8) ventricles, and using magnetic resonance imaging (MRI, N = 3). Hypoxic pulmonary vasoconstriction occurred following WLST, and was associated with distension of the right ventricle (RV) and reduced cardiac output. A 120-fold increase in epinephrine was subsequently observed that produced a transient hyperdynamic phase; however, progressive RV distension developed during this time. Circulatory arrest occurred 7.6±0.3 min following WLST, at which time MRI demonstrated an 18±7% increase in RV volume and a 12±9% decrease in left ventricular volume compared to baseline. We conclude that hypoxic pulmonary vasoconstriction and a profound catecholamine surge occur following WLST that result in distension of the RV. These changes have important implications on the resuscitation, preservation, and evaluation of DCD hearts prior to transplantation.


Assuntos
Parada Cardíaca , Transplante de Coração , Ventrículos do Coração/patologia , Coração/fisiopatologia , Respiração Artificial/efeitos adversos , Vasoconstrição , Animais , Modelos Animais , Suínos , Doadores de Tecidos , Sobrevivência de Tecidos
14.
Mol Cell Probes ; 30(2): 66-73, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26945774

RESUMO

Disrupted meiotic cDNA1 (DMC1) recombinase plays a pivotal role in homology search and strand exchange reactions during meiotic homologous recombination. In the present study, full length coding sequence of DMC1 gene was sequence characterized for the first time from four ruminant species (cattle, buffalo, sheep and goat) and phylogenetic relationship of ruminant DMC1 with other eukaryotes was analyzed. DMC1 gene encodes a putative protein of 340 amino acids in cattle, sheep and buffalo and 341 amino acids in goat. A high degree of evolutionary conservation at both nucleotide and amino acid level was observed for the four ruminant orthologs. In cattle and sheep, novel alternatively spliced mRNAs with skipping of exons 7 and 8 (Transcript variant 1, TV1) were isolated in addition to the full length (FL) transcript. Novel transcript variants with partial skipping of exon 7 and complete skipping of exon 8 (Transcript variant 2, TV2) were found in sheep and goat. The presence of these variants was validated by amplifying cDNA isolated from testis tissue of ruminants using two oligonucleotides flanking the deleted region. To accurately estimate their relative proportions, real-time PCR was performed using primers specific for each variant. Expression level of DMC1-FL was significantly higher than that of TV1 in cattle and TV2 in goat (P < 0.05). Relative ratio for expression of DMC1-FL: TV1: TV2 in sheep was 6.78: 1.43: 1. In-silico analysis revealed presence of splice variants of DMC1 gene across other mammalian species underpinning the role of alternative splicing in functional innovation.


Assuntos
Processamento Alternativo , Proteínas de Ligação a DNA/genética , Ruminantes/genética , Análise de Sequência de DNA/métodos , Animais , Búfalos , Bovinos , Proteínas de Ligação a DNA/metabolismo , Éxons , Cabras , Masculino , Filogenia , Ruminantes/metabolismo , Ovinos , Testículo/metabolismo
15.
Anim Genet ; 47(6): 740-751, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27621101

RESUMO

Meiotic recombination contributes to augmentation of genetic diversity, exclusion of deleterious alleles and proper segregation of chromatids. PRDM9 has been identified as the gene responsible for specifying the location of recombination hotspots during meiosis and is also the only known vertebrate gene associated with reproductive isolation between species. PRDM9 encodes a protein with a highly variable zinc finger (ZF) domain that varies between as well as within species. In the present study, the ZF domain of PRDM9 on chromosome 1 was characterized for the first time in 15 goat breeds and 25 sheep breeds of India. A remarkable variation in the number and sequence of ZF domains was observed. The number of ZF repeats in the ZF array varied from eight to 12 yielding five homozygous and 10 heterozygous genotypes. The number of different ZF domains was 84 and 52 producing 36 and 26 unique alleles in goats and sheep respectively. The posterior mean of dN/dS or omega values were calculated using the codeml tool of pamlx to identify amino acids that are evolving positively in goats and sheep, as positions -1, +3 and +6 in the ZF domain have been reported to experience strong positive selection across different lineages. Our study identified sites -5, -1, +3, +4 and +6 to be experiencing positive selection. Small ruminant zinc fingers were also found to be evolving under concerted evolution. Our results demonstrate the existence of a vast diversity of PRDM9 in goats and sheep, which is in concert with reports in many metazoans.


Assuntos
Evolução Molecular , Cabras/genética , Histona-Lisina N-Metiltransferase/genética , Seleção Genética , Carneiro Doméstico/genética , Dedos de Zinco/genética , Alelos , Sequência de Aminoácidos , Animais , Cruzamento , Genótipo , Índia , Filogenia
16.
Arch Orthop Trauma Surg ; 136(8): 1181-8, 2016 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-27317345

RESUMO

PURPOSE: The purpose of this study was to assess characteristics of radiocarpal arthrofibrosis after intra-articular distal radius fractures (DRF). PATIENTS AND METHODS: In this study 20 patients who underwent wrist arthroscopy at the time of implant removal after volar plating for intra-articular DRF were included retrospectively. The direction of fibrous tissue formation (FTF) and its rigidity were investigated. The findings were correlated to the course of intraarticular fracture lines seen in the preoperative CT, patient age and AO fracture types. RESULTS: In all patients FTF spanned the radiocarpal joint. Fibrous tissue formations extended from previous fracture gaps to the scapholunate interosseous ligament and/or capsule. Four basic types of FTF (Type 1-4) and two combination types (Type 1a, 2a) were found. Fibrotic fans with dorsal capsular attachment (Type 1, 30 %) and its combination with dorsal capsule obliteration (Type 1a, 40 %) were the most common findings. Mild rigidity was present in 3 (15 %), moderate in 7 (35 %), and severe rigidity in 10 cases (50 %). Fracture lines crossing the radius extensor compartments or interfacet ridge, cartilage defects and C3 fractures showed the highest risk to develop severely rigid fibrous tissue formations. In older patients and in more comminuted fractures the number of rigid fibrous tissue formations was higher. CONCLUSIONS: Fracture severity correlates with the development of rigid intra-articular FTF. In case of rigid FTF with restricted wrist motion arthroscopic debridement may be considered at the time of hardware removal.


Assuntos
Ossos do Carpo/patologia , Fibrose/etiologia , Fraturas do Rádio/complicações , Rádio (Anatomia)/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Artroscopia , Feminino , Fibrose/classificação , Fixação Interna de Fraturas , Humanos , Masculino , Pessoa de Meia-Idade , Fraturas do Rádio/cirurgia , Estudos Retrospectivos
17.
Unfallchirurg ; 119(9): 715-22, 2016 Sep.
Artigo em Alemão | MEDLINE | ID: mdl-27445000

RESUMO

Fractures of the distal radius are most commonly caused by hyperextension injuries of the wrist. Tensile forces and force vectors, strength of impact, bone strength and soft tissue tension create individually different fracture patterns. Metaphyseal comminution, loss of cortical support, ligament avulsion and shear fragments are defining parameters for fracture instability. The dislocation of the articular fragment follows the force vectors of the extrinsic forearm muscles bridging the joint. The goal-plan-standardized (GPS) treatment strategy has proven to be helpful in choosing the ideal individual treatment. It is based on individual patient demands on wrist function and an analysis of fracture instability in computed tomography (CT) scans. The "goal" is a realistic expectation assessed by patient and surgeon. The "plan" includes a benefit-risk analysis and selection of an appropriate treatment modality. The "standardized treatment" of surgical and follow-up treatment is based on biomechanical knowledge. Locking plate osteosynthesis aims to neutralize dislocating force vectors and to allow early active mobility. Unidirectional instability can be indirectly neutralized by palmar locking plate systems. A multidirectional instability can be addressed by multiple plating following the column theory. Distal shear and avulsion fractures may require a fragment-specific osteosynthesis approach.


Assuntos
Placas Ósseas/normas , Fixação Interna de Fraturas/instrumentação , Fraturas do Rádio/fisiopatologia , Fraturas do Rádio/cirurgia , Traumatismos do Punho/fisiopatologia , Traumatismos do Punho/cirurgia , Parafusos Ósseos/normas , Força Compressiva , Simulação por Computador , Análise de Falha de Equipamento , Fixação Interna de Fraturas/métodos , Fixação Interna de Fraturas/normas , Humanos , Modelos Biológicos , Guias de Prática Clínica como Assunto , Desenho de Prótese , Estresse Mecânico , Resistência à Tração
18.
Acta Orthop Belg ; 82(4): 861-865, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29182130

RESUMO

AIM: Correlation of Pirani score and Foot bimalleolar (FBM) angle in the treatment of idiopathic congenital talipes equino varus (CTEV) by Ponseti method in infants. MATERIAL AND METHODS: 35 feet with idiopathic CTEV deformity <1 year were prospectively treated by Ponseti method. Deformity evaluated each successive week of treatment by Pirani score and FBM angle. Feet were divided according to Pirani score in groups : one(0-2.0), two(2.5-4) and three(4.5-6). Correlation between mean Pirani score and mean FBM angle was evaluated every week and at follow up, firstly by using Pearson's and Spearman's correlation and then, after dividing data in groups by using ANOVA. RESULTS: Correlation between Pirani score and FBM angle was statistically significant(p value <0.05). CONCLUSION: Pirani score decreases and FBM angle increases with correction. Pirani score and FBM angle correlated in severity of deformity and correction achieved, thus FBM angle provides objective evidence of clubfoot deformity/improvement/deterioration.


Assuntos
Moldes Cirúrgicos , Pé Torto Equinovaro/cirurgia , Tenotomia , Pé Torto Equinovaro/patologia , Feminino , Humanos , Lactente , Masculino , Procedimentos Ortopédicos , Estudos Prospectivos , Índice de Gravidade de Doença , Resultado do Tratamento
19.
Genetika ; 51(11): 1297-300, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26845859

RESUMO

The present study was undertaken to identify polymorphism in the coding sequence of GDF8gene across indigenous meat type sheep breeds. A 1647 bp sequence was generated, encompassing 208 bp of the 5'UTR, 1128 bp of coding region (exon1, 2 and 3) as well as 311 bp of 3'UTR. The sheep and goat GDF8 gene sequences were observed to be highly conserved as compared to cattle, buffalo, horse and pig. Several nucleotide variations were observed across coding sequence of GDF8 gene in Indian sheep. Three polymorphic sites were identified in the 5'UTR, one in exon 1 and one in the exon 2 regions. Both SNPs in the exonic region were found to be non-synonymous. The mutations c.539T > G and c.821T > A discovered in this study in the exon 1 and exon 2, respectively, have not been previously reported. The information generated provides preliminary indication of the functional diversity present in Indian sheep at the coding region of GDF8gene. The novel as well as the previously reported SNPs discovered in the Indian sheep warrant further analysis to see whether they affect the phenotype. Future studies will need to establish the affect of reported SNPs in the expression of the GDF8 gene in Indian sheep population.


Assuntos
Miostatina/genética , Fases de Leitura Aberta , Polimorfismo Genético , Ovinos/genética , Regiões 3' não Traduzidas , Regiões 5' não Traduzidas , Animais , Bovinos , Éxons , Índia
20.
BJOG ; 121(5): 527-36, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24393165

RESUMO

BACKGROUND: Hydrosalpinges in infertile women reduce the success of in vitro fertilisation (IVF) by 50%. Surgical management of hydrosalpinges before IVF improves outcome but these procedures are often contraindicated in women with dense pelvic adhesions. Tubal occlusion achieved by Essure(®) via hysteroscopy provides an alternative. OBJECTIVES: To conduct a systematic review on the efficacy and safety of Essure(®) in the management of hydrosalpinx before IVF. SEARCH STRATEGY: We searched MEDLINE (January 1950 to July 2013), EMBASE (January 1980 to July 2013) and Web of Science (1899 to July 2013). We also searched reference lists of relevant articles and proceedings of relevant international conferences (2000-2013). SELECTION CRITERIA: All types of studies where women with suspected infertility and presence of hydrosalpinx had hysteroscopic tubal occlusion with Essure(®) before IVF. DATA COLLECTION AND ANALYSIS: Two authors independently selected studies and extracted data. Where necessary, study authors were contacted for further data. MAIN RESULTS: In all, 115 women in 11 studies received Essure(®) , mainly in the outpatient setting where local anaesthesia by paracervical block and/or intravenous sedation was used. Successful placement of Essure(®) was achieved in 96.5% (95% confidence interval [95% CI] 91.1-98.9%) of women and tubal occlusion in 98.1% (95% CI 93.1-99.9%). Subsequent IVF resulted in 38.6% pregnancy rate (95% CI 30.9-46.8%), 27.9% live birth rate (95% CI 21.1-35.8%) and 28.6% combined ongoing pregnancy and live birth rate (95% CI 21.7-36.6%) per embryo transfer. AUTHOR'S CONCLUSIONS: Essure(®) appears to be an effective option for management of hydrosalpinx in women before IVF although evidence from a randomised controlled clinical trial is lacking.


Assuntos
Doenças das Tubas Uterinas/cirurgia , Tubas Uterinas/cirurgia , Fertilização in vitro , Próteses e Implantes , Esterilização Tubária/instrumentação , Feminino , Humanos , Nascido Vivo , Gravidez , Taxa de Gravidez
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