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Yoo HW, Park JW, Jung MJ, Yoo JJ, Kim SG, Kim YS. The prediction of liver decompensation using hepatic collagen deposition assessed by computer-assisted image analysis with Masson's trichrome stain. Scand J Gastroenterol 2024; 59:85-91. [PMID: 37724372 DOI: 10.1080/00365521.2023.2257823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 09/06/2023] [Indexed: 09/20/2023]
Abstract
BACKGROUND & AIM The current pathologic system classifies structural deformation caused by hepatic fibrosis semi-quantitatively, which may lead to a disagreement among pathologists. We measured hepatic fibrosis quantitatively using collagen proportionate area (CPA) in compensated cirrhotic patients and assessed its impact on predicting the development of liver decompensation. METHOD From January 2010 to June 2018, we assessed 101 patients who went through liver biopsy and received diagnosis as compensated cirrhosis with digital image analysis of CPA. Clinical and laboratory data were collected at the baseline and at the time of the last follow-up or progression to liver decompensation (LD). RESULT The mean age was 50.8 ± 10.5 years, and the most common etiology of liver disease was chronic hepatitis B (48.5%), followed by alcoholic hepatitis (18.8%). The mean CPA was 16.91 ± 9.60%. The mean CPA values were different in patients with and without LD development (21.8 ± 11.1 vs. 15.2 ± 8.5). During the median follow-up of 60.0 months, 26 out of 101 patients experienced LD. Older age (hazard ratio [HR],1.069; p = 0.015), prolonged international normalized ratio (HR, 6.449; p = 0.019) and higher CPA (HR, 1.049; p = 0.040) were independent predictors of liver decompensation on multivariate cox-regression analysis. When patients were divided according to the optimal CPA threshold (26.8%), higher CPA predicted LD better than lower CPA. (Log-rank test: p < 0.001). CONCLUSION CPA could be a useful quantitative prognostic value for patients with compensated cirrhosis.
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Affiliation(s)
- Hae Won Yoo
- Digestive Disease Center and Research Institute, Department of Internal Medicine, SoonChunHyang University School of Medicine, Bucheon, Korea
| | - Jae Woo Park
- Digestive Disease Center and Research Institute, Department of Internal Medicine, SoonChunHyang University School of Medicine, Bucheon, Korea
| | - Min Jung Jung
- Department of Pathology, SoonChunHyang University College of Medicine, Bucheon, Korea
| | - Jeong-Ju Yoo
- Digestive Disease Center and Research Institute, Department of Internal Medicine, SoonChunHyang University School of Medicine, Bucheon, Korea
| | - Sang Gyune Kim
- Digestive Disease Center and Research Institute, Department of Internal Medicine, SoonChunHyang University School of Medicine, Bucheon, Korea
| | - Young Seok Kim
- Digestive Disease Center and Research Institute, Department of Internal Medicine, SoonChunHyang University School of Medicine, Bucheon, Korea
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Sam-Yellowe TY, Getty TA, Addepalli K, Walsh AM, Williams-Medina AR, Fujioka H, Peterson JW. Novel life cycle stages of Colpodella sp. (Apicomplexa) identified using Sam-Yellowe's trichrome stains and confocal and electron microscopy. Int Microbiol 2021; 25:669-678. [PMID: 33835333 DOI: 10.1007/s10123-021-00175-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 03/16/2021] [Accepted: 03/18/2021] [Indexed: 11/26/2022]
Abstract
Colpodella spp. are free-living flagellates closely related to the apicomplexans. Human infections by Colpodella sp. have been reported. A biflagellated trophozoite and cyst stage comprise the known life cycle stages of Colpodella sp. However, the process of encystation and excystation within the life cycle is unclear. Life cycle stages initiating human infections are unknown. We performed a detailed investigation of the life cycle of Colpodella sp. (ATCC 50594) in culture using Sam-Yellowe's trichrome stains and differential interference contrast (DIC) for light microscopy and fluorescence microscopy of Congo red-stained cells and investigated ultrastructure using transmission electron microscopy (TEM). We report previously undocumented stages of Colpodella sp. Asymmetric and asynchronous division was detected inside cysts by trichrome staining and by TEM. Odd-numbered juveniles and cysts containing more than four juvenile trophozoites were identified. Live imaging of active cultures captured the excystation and egress of juvenile trophozoites and confirmed the presence of multinucleate cysts. The ultrastructure of the multinucleate cyst is reminiscent of apicomplexan schizonts. Insights gained from the life cycle stages observed in culture allowed the construction of the life cycle of Colpodella sp. Knowledge of the life cycle will aid biochemical and molecular characterization of Colpodella sp. and help identify stages in human infections.
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Affiliation(s)
- Tobili Y Sam-Yellowe
- Department of Biological, Geological and Environmental Sciences, Cleveland State University, 2121 Euclid Avenue, SI 219, Cleveland, OH, 44115, USA.
| | - Troy A Getty
- Department of Biological, Geological and Environmental Sciences, Cleveland State University, 2121 Euclid Avenue, SI 219, Cleveland, OH, 44115, USA
| | - Kush Addepalli
- Department of Biological, Geological and Environmental Sciences, Cleveland State University, 2121 Euclid Avenue, SI 219, Cleveland, OH, 44115, USA
| | - Aidan M Walsh
- Department of Biological, Geological and Environmental Sciences, Cleveland State University, 2121 Euclid Avenue, SI 219, Cleveland, OH, 44115, USA
| | | | | | - John W Peterson
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, 44195, USA
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Mena CJ, Barnes A, Castro G, Guasconi L, Burstein VL, Beccacece I, Paulin PC, Arneodo J, Carnevale S, Astudillo G, Cervi L, Theumer MG, Chiapello LS. Microscopic and PCR-based detection of microsporidia spores in human stool samples. Rev Argent Microbiol 2020; 53:124-128. [PMID: 32595002 DOI: 10.1016/j.ram.2020.04.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 03/30/2020] [Accepted: 04/07/2020] [Indexed: 10/24/2022] Open
Abstract
Microsporidia are obligate intracellular fungi with a remarkable ability to infect a wide range of invertebrate and vertebrate hosts. Namely, Enterocytozoon bieneusi is the most frequently microsporidia reported worldwide, and mainly associated with chronic diarrhea and wasting syndrome in AIDS patients. Microscopy and PCR-based detection techniques are effective for diagnosis and identification of species and genotypes; however, these methods should be standardized in each laboratory. In this study, we performed microscopy and nested PCR techniques with PCR product sequencing to detect E. bieneusi in human stool samples. These techniques, if applied together, might prove useful for diagnosis and future epidemiological studies of intestinal microsporidiosis in Argentina.
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Affiliation(s)
- Cristian Javier Mena
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina; Sección Parasitología, Laboratorio de Microbiología, Área de Diagnóstico Complementario, Hospital Rawson, Córdoba, Argentina
| | - Andrés Barnes
- Sección Parasitología, Laboratorio de Microbiología, Área de Diagnóstico Complementario, Hospital Rawson, Córdoba, Argentina
| | - Gonzalo Castro
- Área Biología Molecular, Laboratorio Central de la Provincia de Córdoba, Córdoba, Argentina
| | - Lorena Guasconi
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
| | - Verónica Liliana Burstein
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
| | - Ignacio Beccacece
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
| | - Patricia Catalina Paulin
- Laboratorio de Parasitología, Hospital de Pediatría S.A.M.I.C. "Prof. Dr. Juan P. Garrahan", Buenos Aires, Argentina
| | - Joel Arneodo
- Instituto de Microbiologia y Zoología Agrícola (IMyZA), Instituto Nacional de Tecnologia Agropecuaria (INTA), Argentina
| | - Silvana Carnevale
- Instituto Nacional de Enfermedades Infecciosas, ANLIS "Dr. Carlos G. Malbrán", Buenos Aires, Argentina
| | - Germán Astudillo
- Instituto Nacional de Enfermedades Infecciosas, ANLIS "Dr. Carlos G. Malbrán", Buenos Aires, Argentina
| | - Laura Cervi
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
| | - Martín Gustavo Theumer
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
| | - Laura Silvina Chiapello
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina.
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MOHAMMAD NA, MASTUKI MF, AL-MEKHLAFI HM, MOKTAR N, ANUAR TS. Comparative Study of Wheatley's Trichrome Stain and In-vitro Culture against PCR Assay for the Diagnosis of Blastocystis sp. in Stool Samples. Iran J Parasitol 2018; 13:127-136. [PMID: 29963095 PMCID: PMC6019595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Accepted: 08/22/2017] [Indexed: 11/17/2022]
Abstract
BACKGROUND This study evaluated the performance of routine permanent stain and cultivation method in comparison with polymerase chain reaction assay as the reference technique to detect Blastocystis sp. METHODS A cross-sectional study was conducted among aboriginal populations that reside in Pahang, Peninsular Malaysia in Feb to Mar 2015. A total of 359 stool samples were examined using Wheatley's trichrome stain, in-vitro cultivation in Jones' medium and PCR assay. Positive amplicons were subjected to sequencing and phylogenetic analysis. RESULTS Fifty-six (15.6%) samples were detected positive with Blastocystis sp. by Wheatley's trichrome stain and 73 (20.3%) by in-vitro culture, while PCR assay detected 71 (19.8%) positive samples. Detection rate of Blastocystis sp. was highest in combination of microscopic techniques (27.9%). The sensitivity and specificity of Wheatley's trichrome staining and in-vitro culture techniques compared to PCR assay were 49.3% (95% CI: 37.2-61.4) and 92.7% (95% CI: 89.1-95.4) and 39.4% (95% CI: 28.0-51.8) and 84.4% (95% CI: 79.7-88.4), respectively. However, the sensitivity [60.6% (95% CI: 48.3-71.9)] of the method increased when both microscopic techniques were performed together. False negative results produced by microscopic techniques were associated with subtype 3. The agreement between Wheatley's trichrome stain, in-vitro culture and combination of microscopic techniques with PCR assay were statistically significant by Kappa statistics (Wheatley's trichrome stain: K = 0.456, P<0.001; in-vitro culture: K = 0.236, P<0.001 and combination techniques: K = 0.353, P<0.001). CONCLUSION The combination of microscopic technique is highly recommended to be used as a screening method for the diagnosis of Blastocystis infection either for clinical or epidemiological study to ensure better and accurate diagnosis.
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Affiliation(s)
- Nabilah Amelia MOHAMMAD
- Center of Medical Laboratory Technology, Faculty of Health Sciences, Universiti Teknologi MARA, Puncak Alam Campus, Selangor, Malaysia
| | - Mohd Fahmi MASTUKI
- Center of Medical Laboratory Technology, Faculty of Health Sciences, Universiti Teknologi MARA, Puncak Alam Campus, Selangor, Malaysia
| | - Hesham M. AL-MEKHLAFI
- Endemic and Tropical Diseases Unit, Medical Research Center, Jazan University, Jazan, Kingdom of Saudi Arabia
- Dept. of Parasitology, Faculty of Medicine and Health Sciences, Sana’a University, Sana’a, Yemen
| | - Norhayati MOKTAR
- Dept. of Pre-Clinical Sciences, Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Sungai Long Campus, Selangor, Malaysia
| | - Tengku Shahrul ANUAR
- Center of Medical Laboratory Technology, Faculty of Health Sciences, Universiti Teknologi MARA, Puncak Alam Campus, Selangor, Malaysia
- Integrative Pharmacogenomics Institute, Universiti Teknologi MARA, Puncak Alam Campus, Selangor, Malaysia
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Gunasekaran I, Phansalkar M, Palo LB, Varghese RG. Ovarian Leiomyoma Along with Uterine Leiomyomata: A Common Tumour at an Uncommon Site. J Clin Diagn Res 2015; 9:ED01-2. [PMID: 26674537 DOI: 10.7860/jcdr/2015/13378.6703] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 08/24/2015] [Indexed: 11/24/2022]
Abstract
Ovarian leiomyoma is one of the rarest benign tumours of the ovary, mostly seen in women of reproductive age group. Here we report a case of ovarian leiomyoma as an incidental finding in a patient of 38-year-old woman with uterine leiomyomata. Peroperatively, her left ovary appeared bulky & she underwent total abdominal hysterectomy with left salpingo-oophorectomy. Macroscopically, in addition to uterine leiomyomata, a grey-white solid mass was seen entirely within the ovary without any capsular breach. Microscopically, the ovarian mass resembled its uterine counterpart without any evidence of atypia or necrosis. Masson trichrome stain & immunohistochemistry for desmin positivity confirmed the smooth muscle origin of the tumour cells. Despite its rarity, ovarian leiomyoma has to be considered as one of the differential diagnosis of ovarian spindle cell tumours. In difficult cases, immunohistochemistry aids the diagnosis.
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Affiliation(s)
- Indira Gunasekaran
- Post Graduate Student, Department of Pathology, PIMS , Puducherry, India
| | | | - Lal Bahadur Palo
- Associate Professor, Department of Obstetrics and Gynaecology, PIMS , Puducherry, India
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Abstract
Plastic bronchitis, a rare but serious clinical condition, commonly seen after Fontan surgeries in children, may be a manifestation of suboptimal adaptation to the cavopulmonary circulation with unfavorable hemodynamics. They are ominous with poor prognosis. Sometimes, infection or airway reactivity may provoke cast bronchitis as a two-step insult on a vulnerable vascular bed. In such instances, aggressive management leads to longer survival. This report of cast bronchitis discusses its current understanding.
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Affiliation(s)
- Anil Kumar Singhi
- Department of Pediatric Cardiology, Madras Medical Mission, Chennai, Tamil Nadu, India
| | - Bharathi Vinoth
- Department of Pediatric Cardiology, Madras Medical Mission, Chennai, Tamil Nadu, India
| | - Sarah Kuruvilla
- Department of Pathology and Clinical Laboratory Services, Madras Medical Mission, Chennai, Tamil Nadu, India
| | - Kothandam Sivakumar
- Department of Pediatric Cardiology, Madras Medical Mission, Chennai, Tamil Nadu, India
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