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Objective: To investigate the clinicopathologic features of primary adrenal NK/T cell lymphoma (PANKL). Methods: Six cases of PANKL were collected at Henan Provincial People's Hospital from January 2000 to December 2021. The clinicopathologic features including morphology, immunophenotype, treatment and prognosis were retrospectively analyzed, and relevant literature was reviewed. Results: There were two males and four females. The median age was 63 years (ranged from 57 to 68 years). The tumors involved bilateral adrenal glands in 4 cases and unilateral adrenal gland in 2 cases. The main clinical symptom was low back pain without obvious cause. Serum lactate dehydrogenase (LDH) is elevated in five cases. The imaging feature was rapidly enlarging mass initially confined to unilateral/bilateral adrenal glands. Morphologically, the lymphoid cells were mainly medium-sized with a diffuse growth pattern. Coagulative necrosis and nuclear fragmentation were common. Angioinvasion was seen. Immunophenotypically, the neoplastic cells were positive for CD3, CD56 and TIA-1 while CD5 was negative in 5 cases. All cases were positive for EBER by in situ hybridization with more than 80% proliferative activity by Ki-67. Four cases received chemotherapy, one case underwent surgery, and one case underwent surgery with chemotherapy. Follow-up was done in 5 cases; one case was lost to follow-up. Three patients died with a median survival of 11.6 months (3-42 months). Conclusions: PANKL is rare with highly aggressive clinical presentation and poor prognosis. Accurate diagnosis entails correlation of histomorphology, immunohistochemistry, EBER in situ hybridization and clinical history.
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Male , Female , Humans , Middle Aged , Aged , Retrospective Studies , Lymphoma, T-Cell, Peripheral/pathology , Killer Cells, Natural/pathology , Prognosis , ImmunophenotypingABSTRACT
To investigate the clinicopathological characteristics, histogenesis, immunophenotypes, molecular genetic characteristics, diagnosis and differential diagnosis of calcifying fibrous tumors (CFT). A total of 32 cases of CFT (22 cases from Henan Provincial People's Hospital and 10 cases from PLA Army Medical Center) diagnosed between June 2009 and February 2019 were reviewed. The clinical and pathologic data were analyzed. There were 12 male and 20 female patients, aged from 15 to 63 years (mean 40.8 years). Eleven cases occurred in stomach, four cases in retroperitoneum, four cases in ovary, two cases in scrotum, two cases in mediastinum, two cases in head and neck, one case each in thoracic cavity, lung, adrenal gland, kidney, sigmoid colon, epididymis and mesosalpinx. All the tumors were solid masses with clear boundaries. The maximal dimension of the tumors ranged from 0.6 to 10.0 cm. Microscopically, there was hypocellular stromal sclerosis and wavy storiform coarse collagen with superimposed scattered or patchy lymphocytes and plasma cells; calcification or gravel formation were also detected. Immunohistochemistry showed that spindle cells were positive for vimentin and some were positive for CD34; and they were negative for calponin, SMA, desmin, S-100 protein, SOX10, STAT6, β-catenin, ALK, CD117, DOG1, CKpan, and EMA. No ALK rearrangement was detected by FISH in all cases. No C-KIT and PDGFRA mutation was detected in all the tested 11 cases of stomach, four cases of retroperitoneal and one case of sigmoid colon CFT. MDM2 was not amplified by FISH in all four tested cases of retroperitoneal CFT. CFT is a rare benign tumor of fibroblastic cell origin. The diagnosis mainly depends on histomorphologic analysis and immunophenotyping. CFT should be differentiated from other benign and malignant spindle cell mesenchymal tumors.
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Purpose To explore the clinicopathologic features, diagnosis and differential diagnosis of Kaposiform hemangioendothelioma. Methods To reported the histopathological and immunohistochemical features in 29 cases of Kaposiform hemangioendothelioma, combined with the clinical data and the literature review. Results Of the 29 patients, 15 were male and 14 were female, almost all patients were no more than 1 year old, except one patient aged 25 years.28 cases occurred in superficial skin, including 15 cases in limbs, 5 cases in head and neck, 4 cases in trunk, 1 case in armpit, 3 cases were multiple sites, and 1 case in pelvic cavity. The clinical manifestations were limited or diffuse skin painless plaque, and 16 cases with Kabasach-Merritt phenomenon. Microscopically, the tumor was composed of proliferating small blood vessels and spindle cells, with irregular nodular or lobulated distribution, and invasive growth. Spindle cells were arranged in bundles, with epithelioid cells and spindle cells arranged in nests, and glomerulus-like structures, and the latter with crescent shaped vascular fissures. Immunohistochemically, the tumor cells were strongly positive for VEGFR-3, CD31, CD34 and ERG. Partial tumor cells were positive for SMA and D2-40, but negative for CK, Glut-1 and HHV8. Conclusion Kaposiform hemangioendothelioma is a rare, intermediate, locally aggressive angiogenic tumor, mainly occurring in infants and young adults. The diagnosis relies on its unique morphology and immunophenotype, and it should be differentiated from tufted angioma, infantile hemangioma, congenital hemangioma, spindle cell hemangioma, verrucous venous malformation and Kaposi sarcoma. Extended resection is the best way to treat Kaposiform hemangioendothelioma.
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Purpose To summarize the clinicopathological features, immunophenotype, diagnosis and differential diagnosis of mammary analogue secretory carcinoma of salivary glands(MASC). Methods Four cases of MASC were included. The clinical, histological, and immunohistochemical features and follow-up data were evaluated. Results The patients aged between 20 to 72 years. Two cases were male and two were female. The average age was 52.2 years. All cases showed infiltrative growth and diverse cytology and histology, including lobular, cystic papillary, solid, cribriform or glandular structures, and microcystic honeycombed pattern composed of small cysts merged into larger cysts resembling thyroid follicles. There were no necrosis, nerve or vascular invasion in 4 cases. S-100 protein, Mammaglobin or SOX10 were strongly positive in all MASC cases.3 cases were insignificant positivity for GATA-3. Both p63 and DOG-1 were negative. Conclusion MASC is a lowgrade malignant epithelial tumor of salivary glands. Combined immunohistochemical positivity of S-100 protein, Mammaglobin and SOXIO, or negative for DOG-1, are useful in the diagnosis and differential diagnosis of MASC.
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Objective: To study the chemical constituents from Ampelopsis cantoniensis and their anti-angiogenic activities. Methods: The compounds were isolated and purified by various chromatographic techniques and their structures were elucidated by spectral analysis. The anti-angiogenic activities of the compounds isolated were evaluated using a zebrafish model. Results: Fifteen compounds were obtained from the ethyl acetate fraction in the 90% ethanol extract of A. cantoniensis and their structures were identified as cantonienol (1), nootkatone (2), aromadendrane-4β, 10β-diol (3), abscisic acid (4), 12-oxo-hardwickiic acid (5), betulinic acid (6), platanic acid (7), vanillic acid (8), resveratrol (9), nectandrin B (10), nectandrin A (11), 3, 5, 7-trihydroxychromone (12), 5, 7, 3', 4', 5'-pentahydroxyflavanone (13), taxifolin (14), and myricitrin (15). Conclusion: Compound 1 is a new sesquiterpene named cantonienol. Compounds 2-7 and 10-12 are isolated from the plants of Ampelopsis Michaux for the first time, and the other compounds are firstly reported in this plant. Compounds 9, 11, and 12 exhibit the weak anti-angiogenic activity when evaluated using a zebrafish model.
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Sixteen compounds were isolated from the aerial parts of Euphorbia sikkimensis by means of various chromatographic techniques such as silica gel, Sephades LH-20 and RP-18, and their structures were elucidated as naringenin (1), kaempferol (2), quercetin (3), kaempferol-3-O-alpha-L-arabinopyranoside (4), quercetin-3-O-alpha-L-arabinopyranoside (5), quercetin-3-O-(2"-galloyl)-alpha-L-arabinopyranoside (6), 5alpha, 8alpha-epidioxy-(22E, 24R)-ergosta-6,22-dien-3beta-ol (7), stigmast-5-ene-7-one-3beta-ol (8), 3beta-hydroxy4a, 14alpha-dimethyl-5alpha-ergosta-8, 24(28)-dien-7-one(9), beta-sitosterol (10) , 10-cucurbitadienol( 1) , scopoletin(12) , ethyl gallate(13), p-hydroxybenzaldehyde (14), 3 betahydroxybenzeneethanol( 15) ,and 2,4-dihydroxy-6-methoxy-acetophenone (16) on the basis of spectroscopic data analysis. All the compounds are isolated from this plant for the first time, and compounds 1, 4-8, 15 are obtained from Euphorbia species for the first time.
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Chromatography , Euphorbia , Chemistry , Organic ChemicalsABSTRACT
Objective To analyze the sequence of microsatellite and the flanking sequence from four populations of Oncomelania hupensis. Methods We cloned 159 SSR-PCR amplification products of a commonly used primer, (CA)8RY, using O. hupensis genomie DNA as template, and sequenced 82 products Results The sequences obtained were novel O. hupensis genomic sequences but not repeat simple sequence. It was observed that 36 out of 82 clones contained microsatellites between priming sites.The flanking sequences of certain microsatellite were invariant. Both (GA/CT). and (TTAGGG/CCCAA)n were found in four populations of O. hupensis. However, (CAA)n were found only in O. hupensis from Fuqing,Fujian province and (TCTCTG), were found only in O. hupensis from Guichi,Anhui province and (GAA/TTC)n, (CAA/TTG)n, (CAT), were found only in O.hupensis from Puge,Sichuan province. Conclusion The results obtained by SSR-PCR should not be interpreted as the amplification of microsatellite loci, and analytical rules similar to those for Random Amplified Polymorphic DNA should be used. SSR-PCR could not make the most of the priority of microsatellite. It seems better to amplify the microsatellites with the primers designed on the basis of the flanking sequence.
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<p><b>OBJECTIVE</b>To explore the genetic diversity among populations of Oncomelania hupensis.</p><p><b>METHODS</b>Simple sequence repeat-anchored PCR method was used to amplify the genomic DNA of nineteen snail populations from 8 provinces, and the genetic diversities among these snail populations were analyzed.</p><p><b>RESULTS</b>The genetic distance D among nineteen snail populations ranged from 0 to 0.73 with average genetic distance as D 0.22 +/- 0.013. All the 19 snail populations were clustered into four groups: one group included 16 snail populations distributed throughout the Yangtze River drainage system below the Three Gorges of the river (Hunan, Hubei, Jiangxi, Anhui, and Jiangsu provinces); Snail populations from Yizhou city, Guangxi province, Fuqing city from Fujian province, and Dali city from Yunnan province belonged to an independent group respectively.</p><p><b>CONCLUSION</b>The distribution of Oncomelania hupensis in mainland China could be divided into four subspecies, i.e. Oncomelania hupensis hupensis (O. h. hupensis ), O. h. robertsoni, O. h. tangi , and O. h. guangxiensis.</p>
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Animals , Cluster Analysis , Gastropoda , Genetics , Genetic Variation , Microsatellite Repeats , Polymerase Chain Reaction , Sequence Analysis, DNAABSTRACT
<p><b>OBJECTIVE</b>To determine the correlates of and willingness to participate(WTP) in HIV voluntary counseling and testing (VCT) among migrants in Shanxi province.</p><p><b>METHODS</b>Through quota sampling, a total of 1280 migrants were recruited from 6 different venues where migrants were most likely employed to administer a face-to-face anonymous interview.</p><p><b>RESULTS</b>Knowledge of VCT among migrants was low. Only 56.6% of migrants had heard of HIV voluntary counseling and testing. 64.5% reported willingness to accept VCT after participants were informed that HIV counseling and testing was offered free of charge Centers for Disease Prevention and Control (48.7%), hospital (27.0%) and home (18.5%) were most preferred places for VCT service. Logistic regression analysis indicated that the willingness was associated with having a history of HIV test, having better knowledge of HIV, no discrimination against people with HIV, and high HIV/AIDS perception.</p><p><b>CONCLUSION</b>Community-based health education programs for improving HIV/AIDS knowledge, promoting acceptance of VCT and eliminating discrimination to HIV-infected persons were called for.</p>
Subject(s)
Humans , China , Counseling , Emigrants and Immigrants , HIV Infections , Diagnosis , Health Education , Health Knowledge, Attitudes, Practice , Patient ParticipationABSTRACT
<p><b>OBJECTIVE</b>To explore the genetic diversity among populations of Oncomelania hupensis.</p><p><b>METHODS</b>Amplified fragment length polymorphism method was used to amplify the genomic DNA pools of twenty five snail populations from ten provinces, and the genetic diversities among these snail populations were analyzed.</p><p><b>RESULTS</b>The coefficient rates of similarity (GS(DICE)) among twenty five snail populations were ranged was from 0.694 to 0.831 while Nei's unbiased genetic identity was from 0.635 to 0.799. Genetic distance D from 0.169 to 0.306, and Nei's unbiased genetic distance from 0.225 to 0.452. Genetic variation among smooth-shell snail populations was higher than that of ribbed shell snail populations. Twenty five snail populations were divided into three groups: group A including smooth-shell snail from Fuqing of Fujian province and Yizhou of Guangxi province while group B consisted of smooth-shell snail from Dali of Yunnan province and Xichang, Puge, Danleng, Pujiang, Guanghan of Sichuan. Group C was composed of other seventeen snail populations from the Yangtze River drainage below the Three Gorges.</p><p><b>CONCLUSION</b>Big genetic variation was found among these populations of Oncomelania hupensis. The clustering result of snail populations in genomic level was consistent basically with geographical distribution.</p>
Subject(s)
Animals , China , Genetic Variation , Geography , Polymorphism, Genetic , Schistosomiasis , Snails , GeneticsABSTRACT
<p><b>OBJECTIVE</b>To explore the reasonable sample size and the number of molecular marker loci in the study of amplified fragment length polymorphism (AFLP) being used to analyze the genetic diversity of Ocomelania hupensis.</p><p><b>METHODS</b>The ribbed-shelled snails coming from Yueyang, Hunan province, were selected to analyze the relationship of the number of AFLP molecular marker loci and sample size with the reliability of information on genetic variation for Ocomelania hupensis by AFLP method.</p><p><b>RESULTS</b>Correlations found among the numbers of AFLP molecular marker loci and the sample size with reliable information on genetic variation for Ocomelania hupensis. When sample size was less than 7 individuals, the total number of AFLP loci, the number of polymorphic loci, Nei's gene diversity and Shannon's information index appeared great changes. However, when sample size was bigger than 30 individuals, the values of these indices tended to be stabilized. When the number of AFLP loci was less than 128, the frequency of polymorphic loci, Nei's gene diversity, Shannon's information index and the standard deviation of these two indices changed greatly. Again, when the number of loci was bigger than 338, the values of these indices tended to be stabilized.</p><p><b>CONCLUSION</b>When the genetic diversity of Ocomelania hupensis were analyzed by AFLP method, the sample size coming from each snail population should not be less than 30 individuals and the number of molecular loci analyzed not less than 338.</p>
Subject(s)
Animals , Amplified Fragment Length Polymorphism Analysis , Methods , Gene Frequency , Genetic Loci , Genetic Markers , Genetic Variation , Polymorphism, Genetic , Reproducibility of Results , Sample Size , Snails , GeneticsABSTRACT
<p><b>OBJECTIVE</b>To explore the synthetical index for diagnosing schistosomiasis with ultrasound and to assess the prevalence rate with the index.</p><p><b>METHODS</b>Ultrasound indexes of schistosomiasis Japonicum were analyzed by principal component analysis, and the synthetical indexes were assessed by ROC curve.</p><p><b>RESULTS</b>Among the abnormal rates of the 6 indexes, the lowest was 1.6% comparing with the highest of 59.5%. Significant difference was noficed among the abnormal rates (chi(2) = 631.1, P < 0.01). The individual correlation of the six indexes to each other as will as with age distribution was significant (P < 0.05). The three principal components reflected the degree of pathological changes on liver and spleen. The first principal component was the factor reflecting the degree of liver pathological changes, and the second and third principal components reflected the degree of pathological changes on spleen. The synthetical index D(1) = 0.047X(1) + 0.428X(2) + 1.247X(3) + 0.095X(4) + 0.002X(5) + 0.213X(6) - 12.837 was found by adding the three weight principal components, and it's area under the ROC curve was 0.957. When -1.70 was taken as the critical value, the abnormal rate of population was 66.3%, close to the resident's actual prevalence rate 66.9%.</p><p><b>CONCLUSION</b>Ultrasonography was considered as a method which could rapidly assessing the resident's prevalence rate in the endemic areas of schisitosomiasis Japonicum, and could also provide powerful information for development of strategy on chemotherapy.</p>