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Markov Models of Genomic Events 基因组事件马尔可夫模型
Pub Date : 2024-07-19 DOI: 10.17352/2455-5282.000181
Lecian Orchidea Maria
The Markov Models of genomic elements are newly considered. The representation of the fundamental matrix of the Markov model is newly theorised. The order of magnitude of the initial conditions for the elements of the transition probabilities is newly hypothesised. The model is compared with a sub-Hidden Markov Model of genomic events. The chosen representation of the states is newly proven to consist of an enveloping algebra. The new condition is posed on the Markovian feature of the originating chain from the study of the elements of the loci of the state space; in this case, the choice of the representation of the probability matrix is analytically spelled out, and Monte Carlo methods are not necessitated.
对基因组元素的马尔可夫模型进行了新的研究。对马尔可夫模型基本矩阵的表示方法提出了新的理论。对过渡概率元素初始条件的数量级进行了新的假设。将该模型与基因组事件的子隐藏马尔科夫模型进行比较。新证明了所选的状态表示法由包络代数构成。新条件是通过对状态空间位置元素的研究,对起源链的马尔可夫特征提出的;在这种情况下,概率矩阵表示法的选择是分析性的,不需要蒙特卡罗方法。
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引用次数: 0
Role of exosomes in false-positive COVID-19 PCR tests: Non-specificity of SARS-CoV-2-RNA in vivo detection explains artificial post-pandemic peaks 外泌体在 COVID-19 PCR 检测假阳性中的作用:SARS-CoV-2-RNA体内检测的非特异性解释了大流行后的人为峰值
Pub Date : 2024-02-14 DOI: 10.17352/2455-5282.000179
Khmelinskii Igor, Stallinga Peter, Woodcock Leslie V
Background: The COVID-19 pandemic priorities have focused on prevention by detection and response. National governments’ prevention response decisions are based upon detection statistics from PCR (polymerase chain reaction) tests that are used to define numbers of (i) COVID-19 infected persons, (ii) COVID-19 hospitalisations, and (iii) COVID-19 deaths. These statistics assume a priori that PCR tests are nigh 100% true detectors of COVID-19 infections. Here we will provide an alternative interpretation, along with the compelling evidence, that false positives have distorted to some degree the statistics of the primary outbreaks, and account for almost the whole of the 2nd and subsequent apparent COVID-19 outbreak peaks in various countries. Methods: We extract from the published literature on PCR-test outcomes graphical data that reveals the evidence for a very large percentage of false positive results. We review the role of exosomes in the immune response to all respiratory viral infections and its effect on PCR tests. We hypothesise that exosomes, triggered by all viral respiratory infections, are largely responsible for positive outcomes from PCR tests for COVID-19. We test our alternative interpretation for consistency with the empirical epidemiological trends as published by the World Health Organization (WHO). The Scientific Method is used to direct our research efforts. Findings: We find that PCR testing data for the second and following waves of the COVID-19 pandemic indicate that these waves are mainly artefacts of false-positive results. We find that this interpretation provides a more consistent explanation of the known epidemiology of COVID-19 than the hitherto consensus notion of extremely contagious and rapidly mutating viruses. Interpretation: The RNA (ribonucleic acid) code detected in PCR tests, previously attributed to SARS-CoV-2, belongs instead to a respiratory-virus-induced immune system response by human cells that liberate exosomes, and that vitiate PCR test results. PCR tests have zero specificity in vivo due to the exosome RNA. PCR tests exhibit excellent specificity in vitro on pure samples of other respiratory viruses. The low success rate of vaccines in preventing COVID-19 is explained by the inexact identification of the SARS-CoV-2 RNA.
背景:COVID-19 大流行的优先重点是通过检测和响应进行预防。各国政府的预防应对决策基于 PCR(聚合酶链反应)检测的检测统计数据,这些数据用于确定(i) COVID-19 感染者人数、(ii) COVID-19 住院人数和(iii) COVID-19 死亡人数。这些统计数据先验地假定 PCR 检测对 COVID-19 感染的检测几乎是 100% 真实的。在此,我们将提供另一种解释以及令人信服的证据,即假阳性在一定程度上歪曲了原发疫情的统计数据,几乎是各国第二次及随后明显的 COVID-19 疫情高峰的全部原因。方法:我们从已发表的有关 PCR 检测结果的文献中提取了图表数据,这些数据揭示了假阳性结果所占比例非常大的证据。我们回顾了外泌体在所有呼吸道病毒感染的免疫反应中的作用及其对 PCR 检测的影响。我们假设所有呼吸道病毒感染引发的外泌体是 COVID-19 PCR 检测结果呈阳性的主要原因。我们检验了我们的替代解释是否与世界卫生组织(WHO)公布的经验流行病学趋势一致。我们采用科学方法指导我们的研究工作。研究结果:我们发现,COVID-19 大流行的第二波和随后几波的 PCR 检测数据表明,这几波主要是假阳性结果的假象。我们发现,与迄今达成共识的传染性极强、变异迅速的病毒概念相比,这种解释为 COVID-19 的已知流行病学提供了更一致的解释。解释:在 PCR 检测中检测到的核糖核酸(RNA)代码以前被认为是 SARS-CoV-2 的代码,但它属于呼吸道病毒引起的人体细胞免疫系统反应,这种反应释放出外泌体,使 PCR 检测结果失效。由于外泌体 RNA 的存在,PCR 检测在体内的特异性为零。而在体外对其他呼吸道病毒的纯样本进行 PCR 检测时,其特异性非常好。疫苗在预防 COVID-19 方面的成功率很低,这是因为对 SARS-CoV-2 RNA 的识别不准确。
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引用次数: 0
Posterior Reversible Encephalitis Syndrome (PRES) in a paediatric patient in the intensive care unit 重症监护室一名儿科病人的后可逆性脑炎综合征(PRES)
Pub Date : 2024-02-02 DOI: 10.17352/2455-5282.000178
C. Mata-Perera, JM López-Álvarez, DL Lorenzo-Villegas
Posterior Reversible Encephalopathy Syndrome (PRES) is an entity that has gained importance in recent years. The diagnosis is clinical-radiological. Clinically, the patient presents neurological alterations such as headache, decreased level of consciousness, seizures, and visual disturbances. Radiologically, it includes cerebral oedema, predominantly of the white matter of parietal-occipital regions on magnetic resonance imaging. Multiple situations can trigger this condition, including high blood pressure, immunosuppressants, steroids, and chemotherapy well-known risk factors. An early diagnosis and adequate treatment are essential to avoid the appearance of sequelae in these patients. This case consists of a patient diagnosed at 11 years of age with a bifocal non-germline tumour in the brain who, after treatment with chemotherapy, presented a clinical deterioration with instability compatible with septic shock. Subsequently, he presented a sudden alteration in the level of consciousness accompanied by hypertension and renal failure, which was suspected of PRES after a brain CT imaging test.
后可逆性脑病综合征(PRES)是近年来日益受到重视的一种疾病。其诊断方法是临床放射学诊断。临床上,患者会出现头痛、意识减退、癫痫发作和视力障碍等神经系统改变。在放射学上,它包括脑水肿,在磁共振成像中主要表现为顶枕部白质水肿。多种情况都可能诱发这种疾病,包括高血压、免疫抑制剂、类固醇和化疗等众所周知的危险因素。为避免这些患者出现后遗症,早期诊断和适当治疗至关重要。本病例中的患者在 11 岁时被诊断出患有脑部双灶性非革兰氏肿瘤,在接受化疗治疗后,他的病情出现临床恶化,并伴有脓毒性休克的不稳定性。随后,他的意识水平突然改变,并伴有高血压和肾功能衰竭。
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引用次数: 0
Posterior Reversible Encephalitis Syndrome (PRES) in a paediatric patient in the intensive care unit 重症监护室一名儿科病人的后可逆性脑炎综合征(PRES)
Pub Date : 2024-02-02 DOI: 10.17352/2455-5282.000178
C. Mata-Perera, JM López-Álvarez, DL Lorenzo-Villegas
Posterior Reversible Encephalopathy Syndrome (PRES) is an entity that has gained importance in recent years. The diagnosis is clinical-radiological. Clinically, the patient presents neurological alterations such as headache, decreased level of consciousness, seizures, and visual disturbances. Radiologically, it includes cerebral oedema, predominantly of the white matter of parietal-occipital regions on magnetic resonance imaging. Multiple situations can trigger this condition, including high blood pressure, immunosuppressants, steroids, and chemotherapy well-known risk factors. An early diagnosis and adequate treatment are essential to avoid the appearance of sequelae in these patients. This case consists of a patient diagnosed at 11 years of age with a bifocal non-germline tumour in the brain who, after treatment with chemotherapy, presented a clinical deterioration with instability compatible with septic shock. Subsequently, he presented a sudden alteration in the level of consciousness accompanied by hypertension and renal failure, which was suspected of PRES after a brain CT imaging test.
后可逆性脑病综合征(PRES)是近年来日益受到重视的一种疾病。其诊断方法是临床放射学诊断。临床上,患者会出现头痛、意识减退、癫痫发作和视力障碍等神经系统改变。在放射学上,它包括脑水肿,在磁共振成像中主要表现为顶枕部白质水肿。多种情况都可能诱发这种疾病,包括高血压、免疫抑制剂、类固醇和化疗等众所周知的危险因素。为避免这些患者出现后遗症,早期诊断和适当治疗至关重要。本病例中的患者在 11 岁时被诊断出患有脑部双灶性非革兰氏肿瘤,在接受化疗治疗后,他的病情出现临床恶化,并伴有脓毒性休克的不稳定性。随后,他的意识水平突然改变,并伴有高血压和肾功能衰竭。
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引用次数: 0
Does information sources improve the adoption of new technology? Evidence from cassava processing enterprise 信息来源能否改善新技术的采用?木薯加工企业的证据
Pub Date : 2023-11-27 DOI: 10.17352/2455-5282.000177
SA Daud, OM Popoola, TO Ogunsola, AB Omotoso
The study was conducted to assess the level of adoption of improved cassava processing technologies by cassava processors in Oyo State, Nigeria. A multistage sampling technique was used to select 190 cassava processors in Oyo state. Data was collected through an interview guide while descriptive statistics was used to achieve the objectives. The mean age of the respondents was estimated at 47 years and 90.00% of the respondents were married. The mean household size and years of experience were 6 persons and 11 years respectively. The majority (64.21%) had a secondary occupation (64.21%) while 66.32% of the respondents received credit. Only 7.37% of the respondents received information from extension agents. About 92.63% get information from other sources like radio, fellow professors, friends, and relatives. The major constraints encountered by the respondents include inadequate credit facilities, inadequate extension contact high cost of cassava tubers, and high costs of hiring cassava processing machines. Therefore, extension services on improved cassava processing technologies should be intensified in the study area by offering services, especially in aspects that show low adoption in this study like the mechanical peeler and fryer.
这项研究旨在评估尼日利亚奥约州木薯加工者采用改良木薯加工技术的水平。研究采用多阶段抽样技术,在奥约州选取了 190 名木薯加工者。通过访谈指南收集数据,并使用描述性统计来实现目标。受访者的平均年龄估计为 47 岁,90.00% 的受访者已婚。家庭平均人数和工作年限分别为 6 人和 11 年。大多数受访者(64.21%)从事第二职业,66.32%的受访者获得信贷。只有 7.37%的受访者从推广人员那里获得信息。约 92.63%的受访者从广播、教授、朋友和亲戚等其他渠道获得信息。受访者遇到的主要制约因素包括信贷设施不足、推广联系不足、木薯块茎成本高以及木薯加工机器租赁费用高。因此,应在研究地区加强木薯加工改良技术的推广服务,特别是在本研究中采用率较低的机械去皮机和油炸机等方面提供服务。
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引用次数: 0
The effect of bone morphogenetic proteins BMP in comparison with A Xenograft in the management of bone defects 骨形态发生蛋白 BMP 与 A 型异种移植在骨缺损治疗中的效果比较
Pub Date : 2023-11-08 DOI: 10.17352/2455-5282.000176
Alhalabi Lutfallah, Zenati Mazen
Background: The aim of this study is to compare the effect of Bone Morphogenetic Proteins (rhBMP), carried on a gelatin sponge scaffold in comparison with the Xenograft BioOss® in the management of bone defects. Case presentation: The case is a one-year-old rabbit that had 4 identical holes 5*5 mm within the femur bone, BMP2 was placed within the first hole with a gelatin sponge, and the second defect was left empty. A gelatin sponge was placed alone within the third hole, and a BioOss® graft was placed within the last defect. The radiographic evaluation was conducted (1 and 2) months after the surgical work, and the histological assessment was conducted two months after the surgical work. Results: The results of the radiographic evaluation found that healing the BMP2 hole was better than healing in the empty and the gelatin sponge group holes. There was no big difference between the healing in the holes filled with rhBMP2 with gelatin sponge and the healing in the holes filled with BioOss®. Conclusion: The use of a gelatin sponge impregnated with Bone Morphogenetic Proteins improves and accelerates the healing of bone defects and is comparable to the effectiveness of using a BioOss® graft.
背景:本研究旨在比较骨形态发生蛋白(rhBMP)在明胶海绵支架上与 Xenograft BioOss® 在骨缺损治疗中的效果。病例介绍:病例是一只一岁大的兔子,其股骨上有 4 个 5*5 毫米的相同孔洞,在第一个孔洞中放置了 BMP2 和明胶海绵,第二个缺损处则空着。在第三个孔内单独放置明胶海绵,在最后一个缺损处放置 BioOss® 移植体。手术后 1 个月和 2 个月进行了放射学评估,手术后两个月进行了组织学评估。结果:放射学评估结果表明,BMP2 孔的愈合情况优于空孔和明胶海绵组孔的愈合情况。用明胶海绵填充 rhBMP2 的孔与用 BioOss® 填充的孔的愈合情况差异不大。结论使用浸渍了骨形态发生蛋白的明胶海绵可改善并加速骨缺损的愈合,其效果与使用 BioOss® 移植材料相当。
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引用次数: 0
Ethmoidal sinus osteoma associated with Pneumocephalus 筛窦骨瘤伴肺水肿
Pub Date : 2023-07-03 DOI: 10.17352/2455-5282.000171
Youssef Ayda Aly, Nada Ayman, Elkiki Hassan Ali
The most common causes of intracranial air are head trauma and neurosurgical procedures. Less common etiologies include infection due to gas-forming organisms, mucoceles, tumors, congenital neuroenteric cysts, and dural defects. Here, we present a case of an ethmoidal sinus osteoma associated with pneumocephalus. Osteomas of the paranasal sinuses are benign, often asymptomatic, tumors that progress very slowly. Endocranial development of an osteoma can breach the dura mata, allowing air to enter the cranium producing pneumocephalia which leads to severe neurological deficiencies. Pneumocephalia is an exceptional complication of osteoma.
颅内空气最常见的原因是头部外伤和神经外科手术。较不常见的病因包括由气体形成生物、粘液囊肿、肿瘤、先天性神经肠囊肿和硬脑膜缺损引起的感染。在此,我们报告一例筛窦骨瘤合并脑气。鼻窦骨瘤是良性的,通常无症状,肿瘤进展非常缓慢。骨瘤的颅内发育会破坏硬脑膜,使空气进入颅骨,产生脑气,导致严重的神经功能缺陷。脑积水是骨瘤的一种罕见并发症。
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引用次数: 0
A case of acute transverse myelitis following the AstraZeneca COVID-19 vaccine 阿斯利康COVID-19疫苗接种后急性横贯脊髓炎1例
Pub Date : 2023-03-21 DOI: 10.17352/2455-5282.000169
Madike Reema, L. Andrew
A 79-year-old man presented with gait dyspraxia approximately 2 days after receiving the first dose of the AstraZeneca COVID-19 vaccine (AZ-COVID-19-vax). He had no previous active issues and was currently on no medications.
一名79岁男性在接受第一剂阿斯利康COVID-19疫苗(AZ-COVID-19-vax)约2天后出现步态运动障碍。他以前没有活跃的问题,目前没有服用任何药物。
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引用次数: 0
Muscle strength, level of pain and balance in women with knee osteoarthritis after a sensory-motor exercise program associated to photobiomodulation therapy via cluster: a single-blinded randomized with placebo control trial 通过聚类:单盲随机安慰剂对照试验,在光生物调节疗法相关的感觉运动锻炼计划后,膝关节骨性关节炎女性的肌肉力量、疼痛水平和平衡
Pub Date : 2023-01-27 DOI: 10.17352/2455-5282.000168
Balão Ana Beatriz, Vassão Patricia Gabrielli, de Camargo Marcela Regina, Dourado Victor Zuniga, Tucci Helga Tatiane, Muniz Rennó Ana Cláudia
Introduction: Osteoarthritis (OA) is the most common chronic condition of the joints that leads to pain, stiffness and disability. Aim: The aim of this study was to determine the effectiveness of a sensory-motor exercises program and the photobiomodulation on pain, muscle strength, severity of the injury and dynamic balance of women with knee osteoarthritis. Method and Materials: Thirty-two women were randomized in sensory-motor exercises associated with the placebo photobiomodulation group (SMAG) and sensory-motor exercises with the active photobiomodulation group (SMPG). The pain, knee flexor and extensor peak torque, severity of the injury and dynamic balance were evaluated with the numeric pain rating scale, cell roll, Knee Injury and Osteoarthritis Outcome Score and timed up and go, respectively. Subjects were administered sensory-motor exercises, strengthening exercises and photobiomodulation via cluster applied at the end of each training session for 8 weeks, 2 times/week. Results: There was no significant improvement in the knee flexor and extensor peak torque, meantime, there was a significant linear positive correlation in the sensory-motor exercises program associated with the placebo photobiomodulation group (p = 0.002) at the end of treatment. A significant improvement in the severity of injury (p = 0.002) and dynamic balance (p = < 0.001) was observed in both groups. Furthermore, the level of pain showed a significant improvement in the sensory-motor exercises program associated with the placebo photobiomodulation group (p = 0.043). Conclusion: Sensory-motor exercise program promotes beneficial effects on the severity of the injury and dynamic balance and its association with photobiomodulation was able to produce an extra effect in pain relief. However, adding photobiomodulation to routine exercise regimes for subjects with knee osteoarthritis should be investigated.
骨关节炎(OA)是关节最常见的慢性疾病,会导致疼痛、僵硬和残疾。目的:本研究的目的是确定感觉运动锻炼方案和光生物调节对女性膝关节骨关节炎患者疼痛、肌肉力量、损伤严重程度和动态平衡的有效性。方法和材料:32名女性随机分为安慰剂光生物调节组(SMAG)和主动光生物调节组(SMPG)。分别用数字疼痛评定量表、细胞卷、膝关节损伤和骨关节炎结局评分(knee injury and Osteoarthritis Outcome Score)评估疼痛、膝关节屈伸肌峰值扭矩、损伤严重程度和动态平衡,并计时up和go。在每组训练结束时进行感觉运动训练、强化训练和光生物调节,连续8周,每周2次。结果:治疗结束时,膝关节屈肌和伸肌峰值扭矩无显著改善,同时,感觉运动训练方案与安慰剂光生物调节组存在显著的线性正相关(p = 0.002)。两组损伤严重程度(p = 0.002)和动态平衡(p = < 0.001)均有显著改善。此外,与安慰剂光生物调节组相比,感觉运动锻炼组的疼痛水平有显著改善(p = 0.043)。结论:感觉-运动训练计划对损伤的严重程度和动态平衡有有益的影响,其与光生物调节的关联能够产生额外的疼痛缓解效果。然而,应研究将光生物调节加入膝关节骨关节炎患者的常规运动方案中。
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引用次数: 0
Ruxolitinib as a therapy choice for refractory pruritus in a patient with essential thrombocythemia with CALR mutation Ruxolitinib作为治疗顽固性瘙痒的CALR突变的原发性血小板增多症患者的选择
Pub Date : 2023-01-25 DOI: 10.17352/2455-5282.000167
Cerci Kubra, Patir Pusem
Refractory pruritus associated with Essential Thrombocythemia (ET) is rare. Herein, we present the first report of resistant pruritus responsive to ruxolitinib in an ET patient with a calreticulin mutation.
难治性瘙痒与原发性血小板增多症(ET)是罕见的。在这里,我们提出了第一个报告耐药瘙痒反应鲁索利替尼在ET患者钙网蛋白突变。
{"title":"Ruxolitinib as a therapy choice for refractory pruritus in a patient with essential thrombocythemia with CALR mutation","authors":"Cerci Kubra, Patir Pusem","doi":"10.17352/2455-5282.000167","DOIUrl":"https://doi.org/10.17352/2455-5282.000167","url":null,"abstract":"Refractory pruritus associated with Essential Thrombocythemia (ET) is rare. Herein, we present the first report of resistant pruritus responsive to ruxolitinib in an ET patient with a calreticulin mutation.","PeriodicalId":389545,"journal":{"name":"Global Journal of Medical and Clinical Case Reports","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121735945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
期刊
Global Journal of Medical and Clinical Case Reports
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