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Examining convalescent plasma transfusion in severe COVID-19 patients, recent research highlights the significance of S-RBD antibodies and IL-10 levels 通过对严重 COVID-19 患者的康复血浆输注进行研究,最新研究强调了 S-RBD 抗体和 IL-10 水平的重要性
Pub Date : 2023-12-07 DOI: 10.20473/ijtid.v11i3.50859
Aditea Etnawati Putri, dr. sp.P.K., Betty Agustina Tambunan, Bambang Pujo Semedi, Narazah Mohd Yusoff, Siti Salmah Bt Noordin
Convalescent plasma (CP) may be an option for people with severe COVID-19. However, its efficiency remains unknown. A study was done to determine whether the levels of Anti-SARS-CoV-2 Spike Receptor-Binding Domain (S-RBD) antibodies and IL-10 in COVID-19 patients who had CP transfusion were related to their survival status. The observational cohort study included 40 patients with severe COVID-19 who were followed for 28 days after receiving a CP transfusion. Antibody and IL-10 levels were assessed on Day 1 before to CP transfusion and on Days 1, 2, and 7 following CP transfusion. Twenty six (65%) of the 40 patients survived. Anti-SARS-CoV-2 S-RBD antibody levels were observed to be significantly higher on Days 1, 2, and 7 following CP transfusion (p-value 0.05). Furthermore, IL-10 levels dropped significantly on Days 2 and 7 (p-value 0.05). However, neither the CT value nor the patients' survival status were linked to greater antibody levels or changes in IL-10 levels. According to the findings, CP transfusion can greatly enhance anti-SARS-CoV-2 S-RBD antibody levels while drastically decreasing IL-10 levels. These findings may have therapeutic implications for the use of CP as a COVID-19 therapy option. More research is needed to determine its efficacy in enhancing the survival rate of COVID-19 patients with severe symptoms.
新陈代谢血浆(CP)可能是严重 COVID-19 患者的一种选择。然而,其效率仍是未知数。一项研究旨在确定接受过CP输血的COVID-19患者体内的抗SARS-CoV-2尖峰受体结合域(S-RBD)抗体和IL-10水平是否与其生存状况有关。这项观察性队列研究包括40名重症COVID-19患者,他们在接受CP输血后接受了28天的随访。在输注CP前的第1天以及输注CP后的第1、2和7天,对抗体和IL-10水平进行了评估。40 名患者中有 26 人(65%)存活。在输注 CP 后的第 1、2 和 7 天,抗 SARS-CoV-2 S-RBD 抗体水平明显升高(P 值为 0.05)。此外,IL-10 水平在第 2 天和第 7 天明显下降(P 值 0.05)。然而,CT 值和患者的生存状况均与抗体水平升高或 IL-10 水平变化无关。研究结果表明,CP 输血可大大提高抗 SARS-CoV-2 S-RBD 抗体水平,同时大幅降低 IL-10 水平。这些发现可能对使用 CP 作为 COVID-19 治疗方案具有治疗意义。要确定 CP 在提高症状严重的 COVID-19 患者存活率方面的疗效,还需要进行更多的研究。
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引用次数: 0
Nigella sativa 3% Inhibition Test of Nаturаl Toothpаste Compаred Cetylpyridinum chloride (CPC) Toothpаste 0.01-0.1% on Аggregаtibаcter actinomycetemcomitаns Nigella sativa 3% 氯化乙酰吡啶(CPC)牙膏对Аggregаtibаcter actinomycetemcomitаns的抑制试验
Pub Date : 2023-12-07 DOI: 10.20473/ijtid.v11i3.46075
E. Setiawatie, P. Widiyanti, Retno Puji Rahayu, Alifiani Eprilina, Desi Sandrasari, Irma Yosephina Savitri, Lambang Bargowo, R. S. Meiliana
Periodontitis generаlly begins with gingivitis progresses to alveolar bone increаsing the risk of systemic diseаse. The primаry etiologicаl fаctor in the etiology of periodontаl diseаse is Аggregаtibаcter аctinomycetemcomitаns bacteria. Cetylpyridinium chloride (CPC) has a bactericidal effect by disrupting the function of bacterial membranes in the cytoplasm. CPC can also absorb negative charges from bacteria, increase bacterial cell wall permeability, decrease cell metabolism, and reduce bacterial attachment to teeth. Use of аntimicrobiаl toothpаste, such as Cetylpyridinium chloride (CPC), is one strategy to prevent periodontаl disease, but CPC is hаzаrdous in some quаntities. Аs а result, it should be compared to a natural toothpaste, specifically Nigellа sаtivа toothpаste. The objective of this study is to compare the аntibаcteriаl аctivity of nаturаl toothpаste contаining Nigellа sаtivа 3% with toothpаste contаining CPC 0.01% - 0.1% on Аggregаtibаcter аctinomycetemcomitаns. Experimentаl studies are used in this kind of research. The colony count method wаs used to аssess the nаturаl toothpаstes Nigellа sаtivа 3% аnd toothpаste contаining CPC 0.01- 0.1% for their cаpаcity in inhibiting the Аggregаtibаcter аctinomycetemcomitаns.  Natural toothpаste containing Nigellа sаtivа 3% wаs completely inhibiting Аggregаtibаcter аctinomycetemcomitаns, compared to 0.01-0.1% CPC toothpаste. The significаnce level for the stаtisticаl test results wаs 0.000 (p<0.05). The conclution of this research are the nаturаl toothpаste contаining Nigellа sаtivа 3% аnd toothpаste contаining CPC 0.06%–0.1% can effectively suppress the growth of the microorgаnisms Аggregаtibаcter аctinomycetemcomitаns.
一般来说,牙周炎始于牙龈炎,然后发展到牙槽骨,增加了全身性疾病的风险。牙周病的主要致病菌是αggregаtibаcter аctinomycetemcomitаns细菌。十六烷基氯化吡啶(CPC)通过破坏细胞质中细菌膜的功能产生杀菌作用。CPC 还能吸收细菌的负电荷,增加细菌细胞壁的通透性,降低细胞的新陈代谢,减少细菌对牙齿的附着。使用抗微生物牙膏,如氯化十六烷基吡啶鎓(CPC),是预防牙周病的一种策略,但在某些情况下,CPC 是有害的。因此,应将 CPC 与天然牙膏(特别是 Nigellа sаtivа牙膏)进行比较。本研究的目的是比较含有 3% Nigellа sаtivа的天然牙膏与含有 0.01% - 0.1% CPC 的天然牙膏在Аggregomycetemcomitаns上的活性。此类研究采用的是实验研究法。菌落计数法用于评估天然牙膏 Nigella sаtivа 3% 和含有 CPC 0.01% - 0.1% 的牙膏在抑制畸形牙方面的作用。 与 0.01-0.1% CPC 牙膏相比,含有 3% Nigellа sаtivа 的天然牙膏可完全抑制Аggregаtibаcter аctinomycetemcomitаns。检验结果的显著性水平为 0.000(P<0.05)。本研究的结论是,含有尼盖尔氏活性成分 3%的无菌牙膏和含有 CPC 0.06%-0.1% 的牙膏能有效抑制微菌的生长。
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引用次数: 0
A Peculiar Manifestation of Urinary Tract Infection in a 76-year-old Female 一位 76 岁女性尿路感染的奇特表现
Pub Date : 2023-12-07 DOI: 10.20473/ijtid.v11i3.44137
Alius Cahyadi, Angelina Yuwono, Nicholas Adrianto, Patricia Michelle Lukito
Purple Urine Bag Syndrome (PUBS) is a rare and benign clinical phenomenon associated with urinary tract infections, characterized by the distinctive purple discoloration of a urinary catheter bag. The underlying cause of PUBS is related to bacterial activity involved in the breakdown of tryptophan, mainly in individuals with predisposing factors such as long-term catheterization, constipation, alkaline urine, and being female. We present the case of a 76-year-old female patient with a history of tuberculous spondylitis who developed PUBS during her hospital stay. The patient had been bedridden for three years and had been given a urinary catheter, which was routinely replaced by a non-medical family member and without a proper antiseptic procedure. A urine culture revealed the presence of Proteus mirabilis, and the patient was treated with intravenous antibiotics while also replacing the urinary catheter and bag. After five days of treatment, the urine bag and catheter remained clear, and the patient was discharged. PUBS is a significant indicator of urinary tract infection, necessitating prompt medical intervention to prevent complications. Healthcare professionals should be aware of this syndrome to enable early detection and appropriate management.
紫尿袋综合征(PUBS)是一种罕见的良性临床现象,与尿路感染有关,其特征是导尿管袋呈现明显的紫色。PUBS 的根本原因与参与色氨酸分解的细菌活动有关,主要发生在有长期导尿、便秘、碱性尿液和女性等易感因素的人身上。我们介绍了一例 76 岁女性患者的病例,她有结核性脊柱炎病史,在住院期间患上了 PUBS。该患者卧床三年,一直使用导尿管,导尿管由一名非医务人员的家庭成员例行更换,且没有经过适当的消毒程序。尿液培养发现了奇异变形杆菌,患者接受了静脉抗生素治疗,同时更换了导尿管和尿袋。经过五天的治疗,尿袋和导尿管保持通畅,患者痊愈出院。PUBS 是尿路感染的一个重要指标,需要及时采取医疗干预措施以预防并发症。医护人员应了解这种综合征,以便及早发现并采取适当的治疗措施。
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引用次数: 0
Molecular Diagnostic Tools for Treponema pallidum 苍白螺旋体的分子诊断工具
Pub Date : 2023-12-07 DOI: 10.20473/ijtid.v11i3.44506
Wahyu Setyarini, Nurul Wiqoyah, Arif Nur, Muhammad Ansori
Syphilis, a common sexually transmitted disease, is caused by Treponema pallidum subsp. pallidum. Owing to the chameleonic behavior of syphilis, ocular involvement still presents a therapeutic problem. Direct detection of Treponema pallidum in the vitreous offers a potential diagnostic method because serodiagnosis has considerable limitations. The worldwide identification of T. pallidum substypes has occurred since the advent of molecular typing approaches. The purpose of this article is to provide more information on the development of a molecular approach for Treponema pallidum detection. A body of literature was gathered using automated database searches in Google Scholar, PubMed, and ScienceDirect. Although prior studies have focused on other genes, such as polA, 16S RNA, and the whole genome, there are still some that use the study of the arp and T. pallidum repeat (tpr) genes to subtype. Whole blood, vaginal ulcers, skin biopsies, and other samples can be used in molecular methods. Comparing quantitative reverse trascription-polymerase chain reaction (qRT-PCR) to traditional methods, such as reverse transcription-polymerase chain reaction (RT-PCR), enzyme-linked immunosorbent assay (ELISA), indirect fluorescent antibody (IFA) assay, and virus isolation, qRT-PCR has the advantage of being faster and more sensitive. Quick molecular methods, particularly polymerase chain reaction (PCR) results, will enable early detection of primary, secondary, and latent syphilis, which will lead to prompt treatment and prevention of disease progression as well as a reduction in the amount of time that the patient's sexual partners are exposed to the illness.
梅毒是一种常见的性传播疾病,由苍白螺旋体亚种引起。由于梅毒具有变色性,眼部受累仍是一个治疗难题。直接检测玻璃体内的苍白螺旋体提供了一种潜在的诊断方法,因为血清诊断具有很大的局限性。自分子分型方法问世以来,苍白螺旋体亚型的鉴定工作已在全球范围内展开。本文旨在提供更多有关苍白螺旋体分子检测方法发展的信息。通过在谷歌学术、PubMed 和 ScienceDirect 等数据库中进行自动搜索,收集了大量文献。尽管之前的研究主要关注其他基因,如 polA、16S RNA 和全基因组,但仍有一些研究利用 arp 和苍白螺旋体重复(tpr)基因来进行亚型。全血、阴道溃疡、皮肤活检和其他样本都可用于分子方法。定量反转录聚合酶链反应(qRT-PCR)与反转录聚合酶链反应(RT-PCR)、酶联免疫吸附测定(ELISA)、间接荧光抗体(IFA)测定和病毒分离等传统方法相比,qRT-PCR 具有更快、更灵敏的优势。快速的分子方法,尤其是聚合酶链反应(PCR)的结果,可以及早发现原发性、继发性和潜伏性梅毒,从而及时治疗,防止病情恶化,并减少患者性伴侣接触梅毒的时间。
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引用次数: 0
Screening of Legionella pneumophila from Well Water in Magetan Regency, Indonesia 印度尼西亚马格丹县井水中嗜肺军团菌的筛查
Pub Date : 2023-12-07 DOI: 10.20473/ijtid.v11i3.48755
Nafisah Nurul Hapsari, Muhammad Ridho, Hafid Kurniawan, T. H. Sucipto, Nur Syamsiatul Fajar, Eduardus Bimo, Aksono Herupradopo, S. Fauziyah, Alicia Margaretta Widya, Febriana Aquaresta
Legionellosis is a respiratory infection caused by Legionella pneumophila, a bacterium that can infect protozoa and human lung cells. The disease can be mild or severe, and sometimes fatal, especially in immunocompromised people. Some types of antibiotics that can be used to treat Legionella disease are macrolides such as rifampicin, azithromycin and clarithromycin, as well as fluoroquinolones such as levofloxacin and moxifloxacin. The aim was to investigate the distribution and prevalence of Legionella in well water. This study collected and tested water samples from a different well water in Magetan Regency, East Java, Indonesia using DNA extraction, two-step PCR methods, and visualization with 1.5% agarose gel in UV transluminator. The results were visualized with QGIS 3.28.6 and compared with other tests. The results showed that none of the eight water samples were contaminated with L. pneumophila compared with positive control (403 bp).
军团菌病是一种由嗜肺军团菌引起的呼吸道感染,这种细菌可感染原生动物和人类肺细胞。这种疾病可轻可重,有时甚至致命,尤其是在免疫力低下的人群中。可用于治疗军团菌病的抗生素有大环内酯类,如利福平、阿奇霉素和克拉霉素,以及氟喹诺酮类,如左氧氟沙星和莫西沙星。目的是调查井水中军团菌的分布和流行情况。本研究收集并检测了印度尼西亚东爪哇马格丹县不同井水中的水样,采用了 DNA 提取、两步 PCR 方法,并在紫外转光器中用 1.5% 琼脂糖凝胶显像。结果用 QGIS 3.28.6 进行了可视化,并与其他测试结果进行了比较。结果表明,与阳性对照(403 bp)相比,8 份水样均未受到嗜肺菌污染。
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引用次数: 0
Polysaccharide Capsule Serotype and Antibiotic Susceptibility Pattern of Streptococcus pneumoniae Clinical Isolates in Bali 巴厘岛肺炎链球菌临床分离株的多糖胶囊血清型和抗生素敏感性模式
Pub Date : 2023-12-07 DOI: 10.20473/ijtid.v11i3.45516
Ika Nurvidha, Mahayanthi Mantra, I. Putu, Bayu Mayura, Ni Made, Adi Tarini
Streptococcus pneumoniae (S. pneumoniae) is a causative agent of pneumonia that can spread progressively, cause invasive disease, and increase mortality in humans. Pneumococcal or polysaccharide conjugate vaccination reduces pneumonia rates by vaccine-covered serotypes, but increases infection by non-vaccine serotypes. To determine the polysaccharide capsule serotype of S. pneumoniae isolates that cause infection at Prof. Dr. I.G.N.G. Ngoerah General Hospital and patterns of S. pneumoniae susceptibility to antibiotics from April 2017 to March 2022. All S. pneumoniae isolates from April 2017 and April 2022 were stored in STGG media in a freezer at -80 ℃ then subcultured on sheep blood agar. Polymerase Chain Reaction (PCR) was performed to determine pneumolysin and capsular polysaccharide serotypes of S. pneumoniae. Of the 22 isolates studied, the order of the number of serotypes from the highest was serotype 19F, 3, 6A/B, 33F, 15B/C, 4, and 6V. Seven isolates were untypeable. Antibiotic sensitivity pattern S. pneumoniae was found to be sensitive to linezolid 91%, vancomycin 86%, levofloxacin and benzylpenicillin 82%, ceftriaxone and clindamycin 73%, erythromycin 55%, and chloramphenicol 45%. Serotype 19F was identified as the most dominant capsular serotype; however, serotypes 33F and 15B/C were also found. Interestingly, the 33F serotype is not covered in the 13-valent pneumococcal conjugate vaccine (PCV13) but is covered in pneumococcal polysaccharide vaccine 23 (PPSV23), and the 15B/C serotype is not included in either PCV13 or PPSV23. The antimicrobial susceptibility patterns revealed that S. pneumoniae was susceptible to linezolid, vancomycin, benzylpenicillin, and levofloxacin.
肺炎链球菌(S. pneumoniae)是肺炎的致病菌,可逐渐传播,引起侵袭性疾病,并增加人类的死亡率。接种肺炎球菌或多糖结合疫苗可降低疫苗覆盖血清型的肺炎发病率,但会增加非疫苗血清型的感染率。目的:确定2017年4月至2022年3月期间在I.G.N.G. Ngoerah教授综合医院引起感染的肺炎链球菌分离物的多糖胶囊血清型,以及肺炎链球菌对抗生素的敏感性模式。将2017年4月和2022年4月分离的所有肺炎双球菌保存在STGG培养基中,置于-80 ℃冰箱中,然后在羊血琼脂上进行亚培养。聚合酶链式反应(PCR)用于确定肺炎双球菌的肺炎溶素和荚膜多糖血清型。在研究的 22 个分离株中,血清型数量从高到低的顺序为血清型 19F、3、6A/B、33F、15B/C、4 和 6V。有 7 个分离株无法分型。抗生素敏感性模式显示,肺炎双球菌对利奈唑胺的敏感性为 91%,对万古霉素的敏感性为 86%,对左氧氟沙星和苄青霉素的敏感性为 82%,对头孢曲松和林可霉素的敏感性为 73%,对红霉素的敏感性为 55%,对氯霉素的敏感性为 45%。血清型 19F 被确定为最主要的荚膜血清型,但也发现了血清型 33F 和 15B/C。有趣的是,33F 血清型不包括在 13 价肺炎球菌结合疫苗(PCV13)中,但包括在肺炎球菌多糖疫苗 23(PPSV23)中,而 15B/C 血清型既不包括在 PCV13 中,也不包括在 PPSV23 中。抗菌药敏感性模式显示,肺炎双球菌对利奈唑胺、万古霉素、苄青霉素和左氧氟沙星敏感。
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引用次数: 0
Risk Factors Influencing the Degree of Tuberculous Spondylitis Based on MRI Modality 基于核磁共振成像模式的影响结核性脊柱炎程度的风险因素
Pub Date : 2023-12-07 DOI: 10.20473/ijtid.v11i3.45942
Mukti Sadewo, H. Sukmaningtyas, Agus Priambodo, C. Prihharsanti
The high prevalence and mortality of tuberculosis (TB) is serious threats to the world. Tuberculous spondylitis accounts for 50% of all bone and joint TB cases. The accuracy of diagnosis to detect disease severity using Magnetic Resonance Imaging (MRI) modalities is important when considering potential risk factors. This study aimed to analyze the association of risk factors, including age, sex, spinal lesion location, and abscess location, with the severity of tuberculous spondylitis based on MRI modality using the Gulhane Askari Tip Akademisi (GATA) classification. This study had a cross-sectional design. The study sample consisted of 50 patients who met the inclusion criteria and underwent MRI. The statistical analysis performed in this study was multivariate analysis using multiple linear regression. The results showed that 84% (n = 42) of tuberculous spondylitis affected patients aged 18-65 years, and 70% (n = 35) of cases were found in female patients. In addition, 42% (n = 21) of cases were classified as tuberculous spondylitis grade III according to the GATA classification and were the most common cases in this study. Statistical tests showed no association between age, the location of spinal lesions, and the degree of tuberculous spondylitis. However, there was an association between sex, spinal abscess location, and degree of tuberculous spondylitis. There was no significant association between age and spinal lesion location or degree of tuberculous spondylitis. However, there was a significant association between sex, spinal abscess location, and the degree of tuberculous spondylitis.
结核病(TB)的高发病率和高死亡率严重威胁着世界。结核性脊柱炎占所有骨关节结核病例的 50%。考虑到潜在的风险因素,使用磁共振成像(MRI)模式检测疾病严重程度的诊断准确性非常重要。本研究旨在使用 Gulhane Askari Tip Akademisi(GATA)分类法,根据磁共振成像模式分析年龄、性别、脊柱病变位置和脓肿位置等风险因素与结核性脊柱炎严重程度的关系。本研究采用横断面设计。研究样本包括 50 名符合纳入标准并接受磁共振成像检查的患者。本研究采用多元线性回归进行多变量统计分析。结果显示,84%(n = 42)的结核性脊柱炎患者年龄在 18-65 岁之间,70%(n = 35)的病例为女性患者。此外,根据 GATA 分类法,42%(n = 21)的病例被归类为结核性脊柱炎 III 级,是本研究中最常见的病例。统计检验显示,年龄、脊柱病变的位置与结核性脊柱炎的程度之间没有关联。然而,性别、脊柱脓肿位置和结核性脊柱炎程度之间存在关联。年龄与脊柱病变位置或结核性脊柱炎程度无明显关联。然而,性别、脊柱脓肿位置和结核性脊柱炎程度之间存在明显关联。
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引用次数: 0
Risk Factors Associated with Suspected Clostridium difficile Infection (CDI) in Elderly Diarrhea Patients at Prof. Dr. I.G.N.G. Ngoerah Hospital I.G.N.G. Ngoerah 教授医院老年腹泻患者疑似艰难梭菌感染(CDI)的相关风险因素
Pub Date : 2023-12-07 DOI: 10.20473/ijtid.v11i3.47664
G. Putu, Suka Aryana, Ni Nyoman, Sri Budayanti, N. Putu, Harta Wedari
Clostridium difficile infection (CDI) is a typical healthcare-associated infection that contributes to a significant proportion of morbidity and mortality among hospitalized patients. Anaerobe microbiological laboratory examinations cannot be performed at Prof. Dr. I.G.N.G. Ngoerah Hospital, leading to many undetected cases; therefore, it is crucial to determine the risk factors. Identification  of cases may help to prevent, recognize, and  appropriately treat CDI, reducing morbidity and mortality. This study aimed to determine the risk factors associated with suspected CDI in elderly patients with diarrhea due to their vulnerability to immunosenescence. This research used medical records as secondary data to determine the risk factors associated with suspected CDI in elderly diarrhea patients at Prof. Dr. I.G.N.G. Ngoerah Hospital during the year period of 2017 to 2021 with total of 70 samples who met inclusion criteria by purposive sampling technique. One hundred percent of all samples had a history of hospitalization for ³ 48 h. There were 53 patients (77.1%) had a history of antibiotic use, 26 (37.1%) proton pump inhibitors (PPIs), 66 (94.3%) chemotherapy, 66 (94.3%) urinary tract infections, 6 (8.6%) kidney disease, and 7 (10%) myocardial infarction. Seven (10%) patients had vascular disease, and 11 (15.7%) had diabetes mellitus. Risk factors associated with suspected CDI in elderly patients with diarrhea at Prof. Dr. I.G.N.G. Ngoerah Hospital include hospitalization ³ for 48 hours, use of antibiotics in the last few months, proton pump inhibitors, decreased immune system, urinary tract infection, kidney disease, myocardial infarction, vascular disease, and diabetes mellitus.
艰难梭菌感染(CDI)是一种典型的医疗相关感染,在住院病人的发病率和死亡率中占很大比例。I.G.N.G. Ngoerah 教授医院无法进行厌氧微生物实验室检查,导致许多病例未被发现;因此,确定风险因素至关重要。确定病例有助于预防、识别和适当治疗 CDI,从而降低发病率和死亡率。本研究旨在确定老年腹泻患者因易受免疫衰老影响而疑似感染 CDI 的相关风险因素。本研究使用病历作为二手数据,通过目的性抽样技术确定了2017年至2021年期间I.G.N.G.Ngoerah教授医院老年腹泻患者疑似CDI的相关风险因素,共有70个样本符合纳入标准。在所有样本中,有100%的患者有³ 48小时的住院史,其中53名患者(77.1%)有抗生素使用史,26名患者(37.1%)有质子泵抑制剂(PPI)使用史,66名患者(94.3%)有化疗史,66名患者(94.3%)有尿路感染史,6名患者(8.6%)有肾脏疾病史,7名患者(10%)有心肌梗死史。7名(10%)患者患有血管疾病,11名(15.7%)患者患有糖尿病。在I.G.N.G. Ngoerah教授医院就诊的老年腹泻患者中,与疑似CDI相关的风险因素包括住院³48小时、过去几个月中使用过抗生素、质子泵抑制剂、免疫力下降、尿路感染、肾脏疾病、心肌梗塞、血管疾病和糖尿病。
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引用次数: 0
Larvacidal Activity of the Mulberry (Morus alba L.) Leaf Extract Against Larvae of Aedes aegypti 桑叶提取物对埃及伊蚊幼虫的杀幼虫活性
Pub Date : 2023-08-08 DOI: 10.20473/ijtid.v11i2.37328
Nina Difla Muflikhah
Dengue Haemorrhagic Fever (DHF) is one of the major public health problems in Indonesia. As the population density increases, the number of sufferers increases. Aedes aegypti mosquitoes are vectors for the disease. The absence of drugs make the best prevention effort by eradicating mosquito nests, killing larvae and adult mosquitoes. Mulberry leaves (Morus alba L.) may be used as larvacides in the presence of chemical compounds of flavonoids and saponins that inhibit feeding and disrupt the process of insect metabolism. The purpose of this research has to determine the effect of mulberry leaf extract (Morus alba L.), to determine the larvicide effect of mulberry leaf extract (Morus alba L.) and to determine the concentration of mulberry leaf extract (Morus alba L.) which is optimal in killing third instar Aedes aegypti larvae. This research used Randomized Design Group (RDG) method with treatment consisted 4 concentrations (0.25%, 0.5%, 0.75%, and 1%), negative control and positive control (ABATE) with 6 repetitions. The results of probit analysis showed that LC50 values were 1.124% and LC90 was 4.413%. From the one way ANOVA test at each concentration of 0.25%, 0.5%, 0.75%, and 1%, the F count result is 208.331, the value was greater than F table which is 2.53 and the significant value is 0.000 (sig <0.05) then mulberry leaf extract (Morus alba L.) has a affected to eliminated of Aedes aegypti larvae. Conclusion from the results of the one way ANOVA test of mulberry leaf extract (Morus alba L.) was affected to eliminated third instar Aedes aegypti larvae
出血性登革热(DHF)是印度尼西亚的主要公共卫生问题之一。随着人口密度的增加,患者人数也在增加。埃及伊蚊是登革热的病媒。在没有药物的情况下,最好的预防办法就是消灭蚊巢、杀死幼虫和成蚊。桑叶(Morus alba L.)含有黄酮类和皂苷类化合物,可抑制进食并破坏昆虫的新陈代谢过程,因此可用作杀幼虫剂。本研究的目的是确定桑叶提取物(白桑)的作用,确定桑叶提取物(白桑)的杀幼虫剂效果,并确定桑叶提取物(白桑)杀死埃及伊蚊三龄幼虫的最佳浓度。该研究采用随机设计组(RDG)方法,处理包括 4 种浓度(0.25%、0.5%、0.75% 和 1%)、阴性对照和阳性对照(ABATE),共重复 6 次。probit 分析结果表明,LC50 值为 1.124%,LC90 为 4.413%。在 0.25%、0.5%、0.75% 和 1%的浓度下进行单因素方差分析,F 值为 208.331,大于 F 表中的 2.53,显著值为 0.000(sig <0.05),则桑叶提取物(Morus alba L.)对埃及伊蚊幼虫有抑制作用。根据桑叶提取物对消灭埃及伊蚊第三龄幼虫的影响的单因素方差分析结果得出结论
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引用次数: 0
Polyvinyl Chloride (PVC)-Glycerol with Chitosan Addition for Antibacterial Blood Bag Application 添加壳聚糖的聚氯乙烯(PVC)-甘油在抗菌血袋中的应用
Pub Date : 2023-08-08 DOI: 10.20473/ijtid.v11i2.43104
P. Widiyanti, Tarissa Diandra Putri, Wibowo, Andhi Baskoro, Siswanto
Blood bag is a medical device that stokes and transports whole blood or blood components. The material that is often used for blood bag membranes is Polyvinyl Chloride (PVC), however the common problem that is bacterial contamination and that material have not antibacterial characteristic.  Because of this matter, the aim of this reseach are a blood bag that has antibacterial function is needed and meet the ideal standard as bloodbag. Chitosan as a blood bag membrane material fabrication to get the antibacterial effect. Chitosan is chosen as a blood bag material fabrication to get the antibacterial effect. Chitosan has several specific biocompatibility properties, antibacterial, chelation, and biodegradability. This study used various Chitosan concentrations of 1.5%, 2%, 2.5%, and 3%, and Glycerol was added as a plasticizer. The composition of Chitosan: Glycerol is 1:1. Then, the mixture is added to the PVC solution in a ratio of 1:5 then poured into a petri dish. The results showed characterization that the biocomposite PVC-Glycerol with the addition of 3% concentration of chitosan was the best composition, the tensile strength test result of biocomposite is 21.20 MPa, the absence of membrane pores in the morphology of the blood bag, the hemolytic activity is 0.24%, and the inhibition zones of E. coli and S. aureus, respectively 11.66 mm and 12.66 mm in diameter. Based on the characterization results, the biocomposite PVC-Glycerol membrane with the addition of Chitosan has a very high potential as a candidate for blood bag membranes
血袋是贮存和运输全血或血液成分的医疗设备。血袋膜通常使用的材料是聚氯乙烯(PVC),但常见的问题是细菌污染,而且这种材料没有抗菌特性。 因此,本研究的目的是需要一种具有抗菌功能并符合理想标准的血袋。壳聚糖作为血袋膜材料的制造可获得抗菌效果。壳聚糖被选为制作血袋的材料,以获得抗菌效果。壳聚糖具有多种特殊的生物相容性、抗菌性、螯合性和生物降解性。本研究使用了不同浓度的壳聚糖(1.5%、2%、2.5% 和 3%),并添加了甘油作为增塑剂。壳聚糖和甘油的比例为 1:1。然后,按 1:5 的比例将混合物加入 PVC 溶液中,再倒入培养皿中。结果表明,添加 3% 浓度壳聚糖的 PVC-甘油生物复合材料是最佳成分,生物复合材料的拉伸强度测试结果为 21.20 兆帕,血袋形态无膜孔,溶血活性为 0.24%,对大肠杆菌和金黄色葡萄球菌的抑制区直径分别为 11.66 毫米和 12.66 毫米。根据表征结果,添加壳聚糖的聚氯乙烯-甘油生物复合膜作为血袋膜的候选材料具有很高的潜力。
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引用次数: 0
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Indonesian Journal of Tropical and Infectious Disease
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