OBJECTIVETo investigate the effect of Deferasirox on the micro-angiogenesis in narrow pedicle flap through Epithelial-Mesenchymal Transition.

METHODS32 male rats were randomly divided into group I and II which were subdivided into Ia and Ib, IIa and IIb, 8 rats in each group. The rats were administrated intragastrically for 7 days with Deferasirox 100 mg/kg in group Ia and IIa, with the same dose of N. S. in group Ib and IIb. After that, narrow pedicle flaps were formed on the rats back. In group I, the subcutaneous vascular network was observed intraoperatively. The flap survival rate was recorded. In group II , specimens were collected at the distal end of flaps 3 days after operation. IHC and Western Blot were done to examine the expression of CD34, E-cadherin, Vimentin. The microvessel density was also calculated.

RESULTSThe subcutaneous micro-angiogenesis in group Ia was more exuberant than that in group Ib. The narrow pedicle flaps in group Ia survived completely, while the survival rate was 62.5% in group Ib (P < 0.05). The percentage of flap survival area for Ia and Ib was (100 +/- 0.00) % and (84.06 +/- 4.42)% (P < 0.05). The expression of E-cadherin in IIa was lower than that in IIb, while the expression of Vimentin and CD34 were higher in IIa, showing statistically difference (P < 0.05).

CONCLUSIONDeferasirox can improve the flap micro-angiogenesis through inducing epithelial-mesenchymal transition, so as to improve the survival rate of narrow pedicle flap.

Animals ; Benzoates ; pharmacology ; Epithelial-Mesenchymal Transition ; drug effects ; Male ; Rats ; Rats, Sprague-Dawley ; Surgical Flaps ; blood supply ; Triazoles ; pharmacology

Female ; Humans ; Lymphoma, T-Cell ; diagnosis ; Middle Aged ; Multiple Myeloma ; diagnosis

OBJECTIVETo evaluate the cytogenetic and molecular genetic features of chronic myeloid leukemia (CML) in Chinese.

METHODSA total of 1193 CML patients were retrospectively studied. Chromosome preparation of bone marrow cells was made using direct and short-term culture. Karyotype and bcr-abl fusion genes were analyzed by R-banding, RT-PCR, respectively.

RESULTSIn the 1193 cases, 98.07% was Ph chromosome positive (Ph+) and 1.93% negative (Ph-). In the Ph+ patients, 95.64% was classical Ph and 4.36% variant rearrangements. Additional genetic changes were demonstrated in 11.88% of classical Ph cases. Cytogenetic clonal evolution was found in 7.94% of patients in chronic phase (CP), 27.78% in accelerated phase (AP), and 49. 04% in blast crisis (BC). Among the classical Ph cases, +Ph, +8, -21 were found in 14.62%, 10.77% and 7.69% of them respectively. In patients in BC and AP, the most common additional chromosome changes were + Ph (28.57%), +8 (16.67%) and +19 (7.14%), while in CP, -21 (10.26%), +Ph (8.97%), and +8 (8.97%). The combination of +Ph and +8 (3.60%) was the most frequent of combination pattern. 524 cases were investigated for bcr-abl fusion gene, and 54.01% was b3a2 (+) and 27.67% b2a2 (+).

CONCLUSIONIn Chinese CML patients seem to have their unique features in terms of cytogenetic clonal evaluation.

Adolescent ; Adult ; Aged ; Child ; Child, Preschool ; Female ; Fusion Proteins, bcr-abl ; genetics ; Humans ; Karyotyping ; Leukemia, Myelogenous, Chronic, BCR-ABL Positive ; genetics ; Male ; Middle Aged ; Retrospective Studies

Waldenström's macroglobulinemia (WM) is one of malignant hematological disease on account of abnormal proliferation of B lymphocyte clone and the pathologic cells of WM possess ability to secrete monoclonal immunoglobulin M. In this study, the diagnosis and morphological characteristics of 2 patients with WM were analyzed. The results showed that a special kind of "foam cells" were found by cytochemical staining examinations in both cases, which displayed characteristics of lymphocytes, but neither monocyte-macrophage nor fatty cells. The periodic acid-Shiff's reaction (PAS) demonstrated strong positive, especially on the inclusion bodies in pathologic cell plasma while the acid phosphatase, and alpha-butanoic acetate esterase stainings, resulted both in negative. In conclusion, the cells found in the two cases reported may be described as gemmy ring-like lymphocyte in morphology, a special subtype of ring-like lymphocyte.
Adult ; Humans ; Male ; Middle Aged ; Waldenstrom Macroglobulinemia ; pathology

OBJECTIVETo analyse the outcome of newly diagnosed adult acute myeloid leukemia (AML) patients treated with HAA (homoharringtonine, cytarabine and aclarubicin) regimen and explore the efficacy and safety of this regimen.

METHODSEighty patients were treated with HAA regimen. The complete remission (CR) rate was observed. Kaplan-Meier method was used to estimate relapse free survival (RFS) rate and the differences were compared with 2-sided log-rank test.

RESULTSOf the 80 patients, 65 (81%) attained CR and the CR rate after the first course of induction was 75%. For the CR patients, the median follow-up was 26 (2 -69) months, and the estimated 3-year overall survival (OS) rate was 51% and the estimated 3-year RFS was 53%. For the AML-M5 and AML-M /M2 patients the CR rate was 74% and 87% and 3 year RFS of CR patients was 75% and 37%, respectively. The CR rate of 100%, 83% and 20% was achieved in patients with favorable, intermediate and unfavorable cytogenetics, respectively. The 3 year OS for favorable and intermediate group was 76% and 50% respectively. The median survival time of unfavorable group was only 6 months.

CONCLUSIONHAA regimen is a safe, efficacious, and well-tolerable induction therapy for newly diagnosed AML.

Aclarubicin ; administration & dosage ; Adolescent ; Adult ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Cytarabine ; administration & dosage ; Female ; Harringtonines ; administration & dosage ; Humans ; Leukemia, Myeloid, Acute ; drug therapy ; Male ; Middle Aged ; Retrospective Studies ; Treatment Outcome ; Young Adult

OBJECTIVETo assess the association between serum 25-hydroxyvitamin D [25(OH)D] levels at birth and bronchopulmonary dysplasia (BPD) in preterm infants.

METHODSThis study recruited preterm infants with gestational age of below 34 weeks who were born between January 2014 and December 2016. These preterm infants were classified into two groups: BPD and control. The association between serum 25(OH)D levels at birth and BPD was analyzed.

RESULTSSerum 25(OH)D levels in the BPD group was significantly lower than those in the control group [(37±17 nmol/L vs 47±20 nmol/L; P<0.05), and the rate of vitamin D deficiency was significantly higher than those in the control group (90.2% vs 74.0%; P<0.05). The level of serum 25(OH)D was negatively correlated with the incidence of BPD (r=-0.201, P=0.001).

CONCLUSIONSVitamin D deficiency at birth may be associated with BPD in preterm infants, but need to be further studied by multivariate analysis.

Bronchopulmonary Dysplasia ; blood ; etiology ; Female ; Humans ; Infant, Newborn ; Infant, Premature ; blood ; Male ; Vitamin D ; analogs & derivatives ; blood ; Vitamin D Deficiency ; complications

Quality is the guarantee for the clinical safety and effectiveness of Chinese medicine. Accurate quality evaluation is the key to the standardization and modernization of Chinese medicine. Efforts have been made in improving Chinese medicine quality and strengthening the quality and safety supervision in China, but rapid and accurate quality evaluation of complex Chinese medicine samples is still a challenge. On the basis of the development of ambient mass spectrometry and the application in quality evaluation of complex Chinese medicine systems in recent years, the authors developed the multi-scenario Chinese medicine quality evaluation strategies. A systematic methodology was proposed in specific areas such as real-time monitoring of the quality of complex Chinese medicine decoction system, rapid toxicity grading of compound Chinese patent medicine, and evaluation of bulk medicinals of Chinese patent medicine. Allowing multi-scenario analysis of Chinese medicine, it is expected to provide universal research ideas and technical methods for rapid and accurate quality evaluation of Chinese medicine and boost the high-quality development of Chinese medicine industry.
China ; Drugs, Chinese Herbal ; Mass Spectrometry ; Medicine, Chinese Traditional ; Nonprescription Drugs ; Reference Standards

OBJECTIVETo investigate the possibility of Laparoscopic reconstruction of vagina using pedicled ileal autograft and provide a new procedure of colpopoiesis.

METHODSThe abdominal and perineal approaches were performed simultaneously under a sufficiently deep general anaesthesia. Laparoscopically, a 15-18 cm segment of the ileum on its vascular pedicle, ileal branches of the superior mesenteric artery and its concomitant veins, was selected and isolated for transplantation using ultrasonically-powered instruments. The distal of the transferred ileal segment was 15cm apart from the ileocecal junction. The ileum continuity was restored immediately by end-to-end anastomosis and the distal oral of the transplant was closed using a curved intraluminal stapler. Meanwhile, a neovaginal tract was completed to dissect from the perineum into the peritoneum and the tract widened laterally. Then the ileum transplant was reversed to reach the perineum through the peritoneal incision at the top of the neovaginal tract without subjecting the mesenteric neurovascular pedicle to undue tension and subsequent necrosis. The oral edge of the ileum transplant was sutured to the perineal skin.

RESULTSFollowed up for over 1-53 months postoperatively, 36 patients who received laparoscopic vaginoplasty by transferring ileal segment flaps got satisfactory neovaginal function similar to a normal vagina with mucus and moistness.

CONCLUSIONSThe advantages of using a laparoscopic ileum colpopoiesis are that (1) satisfactory neovaginal function similar to a normal vagina with mucus and moistness, (2) no disturbance of bowel function, (minimal scarring in abdominal wall and less secondary deformity in perineum and (3) no need for frequent dilation or stent wearing to the reconstructed vagina. And so laparoscopic vaginoplasty was a preferable alternative of vaginoplasty.

Adolescent ; Adult ; Female ; Follow-Up Studies ; Humans ; Ileum ; transplantation ; Laparoscopy ; Reconstructive Surgical Procedures ; methods ; Surgical Flaps ; blood supply ; Vagina ; surgery ; Young Adult

Dao-di herbs, which are widely recognized as medicinal materials with a high quality and good efficacy in clinic, are now facing the dilemma of absence of standard. This study focused on a pivotal scientific problem of design and application of quality standard of Dao-di herbs, and systematically illustrated the general rules for the quality standard of Dao-di herbs involving "four rules, six core contents, and three key methods". The quality standard of Dao-di herbs shall be fully based on literatures as well as habitat, planting/breeding, processing, characters, chemical-pharmacological/toxic data. The common requirements for the quality standard of Dao-di herbs contain "clear source, explicit origin, rational indicator, gradable quality, and multiple detection methods". Notably, traditional experiences and modern techniques, quality tracing management system, "quality determination by distinguishing characters" method, rapid detection technology, effective/toxic substances control method, were comprehensively applied in this standard to purse the objectification, automation, and intellectualization of detection technology. Appearance characters, chemical components, and bioactive parameters, unified effective/toxic indicators, quality markers, and pharmacopeial control indicators and reasonable ranges were included in rigorous quality standards for Dao-di herbs. Besides, simple grading method shall be developed to guide the implementation of "high quality-high price" policy. Eventually, the new quality standards for Dao-di herbs will lead international standards and promote the high-quality development of Dao-di herbs.
Drugs, Chinese Herbal ; Medicine, Chinese Traditional ; Plants, Medicinal ; Reference Standards ; Technology

OBJECTIVESevere acute respiratory syndrome (SARS) is an emerging infectious disease that first manifested in humans in November 2002. The SARS-associated coronavirus (SARS-CoV) has been identified as the causal agent, but the pathology and pathogenesis are still not quite clear.

METHODSPost-mortem lung samples from six patients who died from SARS from April to July 2003 were studied by light and electron microscopy, Masson trichromal staining and immunohistochemistry. Evidence of infection with the SARS-CoV was determined by reverse-transcription PCR (RT-PCR) , serological examination and electron microscopy.

RESULTSFour of six patients had serological and RT-PCR evidence of recent infection of SARS-CoV. Morphologic changes are summarized as follows: (1) Diffuse and bilateral lung consolidation was seen in all patients (6/6) with increasing lung weight. (2) Diffuse alveolar damage was universal (6/6) with hyaline membrane formation (6/6), intra-alveolar edema/hemorrhage (6/6), fibrin deposition (6/6), pneumocyte desquamation (6/6). A marked disruption in the integrity of the alveolar epithelium was confirmed by immunostaining for the epithelial marker AE1/AE3 (6/6). (3) Type II pneumocytes, with mild hyperplasia, atypia, cytomegaly with granular amphophilic cytoplasm and intracytoplasmic lipid accumulation (5/6). (4) Giant cells in the alveoli were seen in five of 6 patients (5/6) , most of which were positive for the epithelial marker AE1/AE3 (5/6), but some cells were positive for the macrophage marker CD68(2/6). (5) A pronounced increase of macrophages were seen in the alveoli and the interstitium of the lung (6/6), which was confirmed by histological study and immunohistochemistry. (6) Haemophagocytosis was present in five of the 6 patients(5/6). (7) Lung fibrosis was seen in five patients(5/6), with alveolar septa and interstitium thickening(5/6), intraalveolar organizing exudates (6/6) and pleura thickening (4/6). Proliferation of collagen was confirmed by Masson trichromal staining, most of which was type III collagen by immunostaining. The formation of distinctive fibroblast/myofibroblast foci was seen in five patients (5/6) by light microscopy and immunochemistry. (8) Squamous metaplasia of bronchial mucosa was seen in five patients(5/6). (9) Thrombi was seen in all patients(6/6). (10) Accompanying infection was present in two patients, one was bacteria, the other was fungus. In addition, electron microscopy revealed viral particles in the cytoplasm of alveolar epithelial cells and endothelial cells corresponding to coronavirus.

CONCLUSIONDirect injury of SARS-CoV on alveolar epithelium, prominent macrophage infiltration and distinctive fibroblast/myofibroblast proliferation may play major roles in the pathogenesis of SARS.

Adult ; Antibodies, Monoclonal ; metabolism ; Antigens, CD ; metabolism ; Antigens, Differentiation, Myelomonocytic ; metabolism ; Epithelium ; pathology ; Female ; Humans ; Keratins ; immunology ; Lung ; pathology ; ultrastructure ; virology ; Male ; Middle Aged ; Pulmonary Alveoli ; pathology ; Pulmonary Fibrosis ; etiology ; pathology ; SARS Virus ; isolation & purification ; Severe Acute Respiratory Syndrome ; complications ; metabolism ; pathology ; virology