Adult ; Female ; Humans ; Male ; Middle Aged ; Treatment Outcome ; Ulna ; surgery ; Ulna Fractures ; therapy ; Young Adult

Objective To investigate whether the monthly distribution of birth was associated with congenital heart disease(CHD).Methods The monthly distribution of birth of 5 070 patients with CHD who accepted examination or treatment from Jan.2003 to Dec.2006 was investigated and compared with that of 6 627 healthy newborn children born in 2001-2006.The statistic analysis was accomplished with SPSS 12.0 software for ?2 test.Results Four hundred and forty-four of the 5 070 patients with CHD were born in January(8.8%),432 cases in February(8.5%),384 cases in March(7.6%),339 cases in April(6.7%),390 cases in May(7.7%),393 cases in June(7.8%),414 cases in July(8.2%),489 cases in August(9.6%),498 cases in September(9.8%),492 cases in October(9.7%),396 cases in November(7.8%),and 399 cases in December(7.8%).The structural ratio of the number of CHD patients were the highest for those who were born in August,September,October,and the lowest among those who were born of February and March,April.The number of CHD patients who were born in the autumnal months of August,September and October was 1 479(29.1%),much higher than those who were born in February,March and April(1 155 cases,22.8%)(P

Objective To evaluate the diagnostic value of MRI in brachial plexus injury.Methods Total 98 patients with brachial plexus injury were examined by MRI before operation.Fifty-four of 98 patients MR imaging were obtained by 0.5 Tesla scanner and other 44 patients were obtained by 1.5 Tesla scanner.The scanning sequences include: SE T_1WI,T_2WI,FFE T_2WI and T_2WI SPIR. Exploration of the supraclavicular plexus was carried out and the MR imaging were compared with the operative finding in 63 patients.Thirty-five patients who had not surgery were followed-up.Results MR imaging found pre-ganglionic injuries in 45 patients and post-ganglionic injuries in 56 patients.Pre-and post-ganglionic injuries simultaneously in 16 patients among them.MR imaging can not find injury sings in 13 patients.The positive rate was 86.73%.MR imaging finding of pre-ganglionic injuries include:(1) Spinal cord edema and hemorrhage,2 patients (4.44% ).(2)Displacement of spinal cord,17 patients (37.78%).(3)Traumatic meningoceles,37 patients (82.22%).(4)Absence of roots in spinal canal, 25 patients(55.56% ).(5)Scarring in the spinal cnanl,24 patients (53.33%).(6)Denervation of erector spine,13 patients (28.89%).MR imaging finding of post-ganglionic injuries include:(1)Trunk thickening with hypointensities in T_2WI,23 patients (41.07%).(2)Nerve trunk complete loss of continuity with disappeared of nerve structure,16 patients (28.57%).(3)Continuity of nerve trunk was well with disappearance of nerve structure,14 patients(25.00%).(4)Traumatic neurofibroma,3 patients (5.36%).Conclusion MR imaging can reveal Pre-and post-ganglionic injuries of brachial plexus simultaneously.MR imaging is able to determine the location (pre-or post-ganglionic)and extent of brachial plexus injury,provided important information for treatment method selection.

Objective To improve recognition and imaging diagnosis of aneurysmal bone cyst secondary to a giant cell tumor.Methods To collect the dates of 12 patients with aneurysmal bone cyst secondary to a giant cell tumor were proved by operation and pathology from January 2003 to October 2006. Analyzed and summarized their imaging manifestations and correlation with pathohistology.Results Six lesions were located in epiphysis and metaphysic regions of long bone.Six lesions were located in pelvis.All cases showed a cystic lesion with expanded and osteolytic,eccentric 10 cases and centric 2 cases.Four cases display trabeculate,the margin is well define with a rim of bone sclerosis in 2 cases.Magnetic resonance imaging(MRI)scans were available in 10 patients.All case showed cystic,dilated lesions with solid areas. Eight cases manifested single or multitude solid nodules in big cystic wall.Two cases appeared solid masses with multitude cysts.The sign of multitude fluid-fluid level,best seen on T_2-weighted images,was present in all patients.Seven cases emerged soft-tissue masses.MR found indicative of large amounts of hemosiderin in one cases.Eight cases were examined by spiral CT with plain scanning and enhancement scanning. Reconstructed image were CTA and 3D-MPR(three dimensions multiplanar reconstruction)imaging.All cases showed cystic,dilated lesions with solid areas.The sign of multitude fluid-fluid level was present in 6 patients.The solid areas and cystic-wall of lesions showed contrast enhancement in 8 patients.3D-MPR imaging showed supply blood vessel of tumors in 3 cases.Arteriovenous malformation did not found in all patients.The surgeons'operative findings and the gross specimens were studied in all patients.All lesions were composed of solid areas and cystic areas.The diagnosis of pathology were ABC with GCT(grade Ⅱ)in 10 cases and ABC with GCT(grade Ⅲ).Conclusion Aneurysmai bone cyst secondary to a giant cell tumor is not rare.Adequately recognizing the pathologic basis of ABC,and selecting imaging techniques correctly (X-ray and MRI,or X-ray and CT)is especially important to diagnose a giant-cell tumor with secondary aneurysmai bone cyst.When an eccentric,expanded,lytic tumor with a cystic-solid lesion in epiphysis of long bone or pelvis shows multiple fluid levels,a giant-cell tumor with secondary aneurysmai bone cyst components should be sufficiently considered.

OBJECTIVETo evaluate the feasibility and efficacy of a new MRI imaging method--diffusion weighted imaging (DWI) with short TI version recovery-echo planar imaging (STIR-EPI) sequence in differentiating benign cervical lymph nodes from malignant ones. METHODS Twenty nasopharyngeal carcinoma patients and fourteen volunteers received both conventional MRI and DWI with STIR-EPI. Ability of detecting lymph nodes between conventional MRI and STIR-EPI-DWI was compared, and the difference of apparent diffusion coefficient (ADC) value between metastatic lymph node and normal lymph node was analyzed.

RESULTSDWI was more sensitive in detecting lymph node than conventional MRI. ADC value of metastatic lymph node (0. 766 +/- 0. 119) x 10 (-3) mm(2)/s was significantly lower than that of normal lymph node (0. 975 +/- 0. 179) x 10 - mm2/s (P < 0. 01).

CONCLUSIONAs a new MRI imaging technique in detecting cervical lymph nodes, diffusion weighted imaging ( DWI) with short TI version recovery-echo planar imaging ( STIR-EPI) sequence is more reliable and sensitive than conventional MRI imaging, providing an alternative way to differentiate benign lymph nodes from malignant ones.

Adult ; Aged ; Diagnosis, Differential ; Diffusion Magnetic Resonance Imaging ; methods ; Echo-Planar Imaging ; methods ; Female ; Humans ; Lymph Nodes ; pathology ; Lymphatic Metastasis ; diagnosis ; Male ; Middle Aged ; Nasopharyngeal Neoplasms ; diagnosis ; Neck ; Reproducibility of Results ; Sensitivity and Specificity

OBJECTIVETo explore the diagnosis and treatment of a case of neonatal alloimmune thrombocytopenia purpura (NAITP) caused by anti HPA-3a antibody.

METHODSThe platelet counts and purpuric symptom in the newborn were clinical examined. The HPA-1-21bw genotypes of the newborn and his parents were detected by multiple DNA-PCR, gene sequencing and genotyping. The HPA specificity antibody in the sera of newborn and his mother were detected by flow cytometry (FCM), and the HPA specificity antibody was identified by monoclonal antibody-specific immobilization of platelet antigens (MAIPA).

RESULTSThe newborn had the typical symptom of NAITP, multiple subcutaneous petechia, hematuria and coffee-like vomitus. The HPA genotype of the newborn was HPA-3ab, while that of his mother and his father were HPA-3bb and HPA-3aa, respectively. The sera of newborn and his mother existed antibody against the platelet of newborn's father. The HPA antibody of the newborn and his mother were identified as anti HPA-3a. The newborn was approved a patient of NAITP caused by anti HPA-3a antibody.

CONCLUSIONThe diagnosis and treatment for NAITP newborn caused by anti HPA-3a antibody in this study was the first domestic report. It could provide successful experiences and references for the similar cases.

Antibody Specificity ; immunology ; Antigens, Human Platelet ; immunology ; Genotype ; Humans ; Infant, Newborn ; Isoantibodies ; adverse effects ; immunology ; Male ; Thrombocytopenia, Neonatal Alloimmune ; etiology ; immunology

OBJECTIVETo investigate the protective effect and mechanism of Shenqi Compound on diabetic angiopathy modeled rats.

METHODSTotally 18 SD rats were randomized into 3 groups, i.e., the normal control group, the diabetic mellitus (DM) group, and Shenqi Compound group, 6 in each group. The DM rat model was established by feeding high-fat diet (to induce hyperlipidemia) +intraperitoneal injection of small dose streptozotocin (STZ). Shenqi Compound was given to rats in the Shenqi Compound group at the daily dose of 2 g/kg. Equal volume of normal saline was given to rats in the model group and the normal control group by gastrogavage. All treatment was lasted for 12 weeks. Then 2-D and ultrasonic integrated backscatter technique were used to evaluate structural and functional changes of abdominal aorta in the progression of diabetic macroangiopathy. The fibrosis degree of the aorta vessel and myocardium capillaries were observed by using HE and Masson trichrome staining. The tension of the aortic vascular ring was determined. The transforming growth factor beta (TGF-beta) mRNA expression was detected by real time PCR (RT-PCR). The protein expression of TGF-beta, collagen I, collagen III, connective tissue growth factor (CTGF), and phosphorylation P38 MAPK were detected by Western blot.

RESULTSCompared with the normal control group, abdominal aortic systolic inner diameter, diastolic inner diameter, Peterson elastic modulus, stiffness index, and backscatter integral significantly increased; the rangeability of integral backscatter and the extension coefficient of cross section significantly decreased in the DM group (all P < 0.05). After 12 weeks aforesaid indices were obviously improved in the Shenqi Compound group (P < 0.05). Results of HE and Masson staining showed that the fibrosis degree of the aorta vessel and myocardium capillaries was obviously alleviated in rats of the Shenqi Compound group (P < 0.05). Results of the aortic vascular ring tension showed that acetylcholine induced vasodilatation and maximum diastolic percent were obviously elevated in the Shenqi Compound group (P < 0.05). Compared with the normal control group, the mRNA expression of TGF-beta, and the protein expression of TGF-beta, collagen I, and collagen III, and phosphorylation of P38 MAPK all significantly increased in the DM group (P < 0.05). Compared with the DM group, the mRNA expression of TGF-beta, and the protein expression of TGF-beta, collagen I, and collagen III, and phosphorylation of P38 MAPK all decreased (P < 0.05).

CONCLUSIONSShenqi Compound could effectively improve the arterial function in diabetic marcoangiopathy and microvascular dysfunction. The mechanism might be due to the down-regulating the expression of TGF-beta, and further suppressing the phosphorylation of P38 MAPK, reducing the synthesis of collagen I and collagen III, therefore, ameliorating arterial and myocardial interstitial fibrosis.

Animals ; Collagen Type I ; metabolism ; Collagen Type III ; metabolism ; Diabetes Mellitus, Experimental ; drug therapy ; Diabetic Angiopathies ; prevention & control ; Drugs, Chinese Herbal ; pharmacology ; Male ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Transforming Growth Factor beta1 ; metabolism ; p38 Mitogen-Activated Protein Kinases ; metabolism

OBJECTIVETo investigate the association between the single nucleotide polymorphisms (SNPs) of paraoxonase-2 (PON2) gene and the susceptibility to occupational noise-induced deafness among Chinese Han population exposed to high noise levels [>85 dB (A)].

METHODSA case-control study was conducted in Chinese Han population exposed to high noise levels. The subjects were divided into case group (n = 127) and control group (n = 136) according to the Diagnostic criteria of occupational noise-induced deafness (GBZ 49-2007). The case group was composed of 127 workers with a mean binaural high-frequency hearing threshold not less than 40 dB, as measured using an electro-audiometer, while the control group was composed of 136 workers with a mean binaural high-frequency hearing threshold less than 40 dB, as measured using the electro-audiometer, who were on shift in the same position as the cases and matched with them for age, sex, and years of noise exposure. Peripheral venous blood (2 ml) was collected from each subject during physical examination to extract genomic DNA, and genotypes were identified using a TaqMan probe.

RESULTSPON2 genotypes rs7493 CG+GG, rs7785846 CT+TT, rs12026 CG+GG, and rs7786401 GT+TT were the risk factors for occupational noise-induced deafness, and the adjusted odds ratios (95%confidence intervals) were 5.87 (3.11∼11.07), 5.92 (3.10∼11.32), 5.53 (2.93∼10.45), and 5.93 (3.10∼11.34), respectively. In addition, the higher the noise exposure levels, the higher the risk of developing occupational noise-induced deafness among the individuals carrying mutant genotypes.

CONCLUSIONPON2 genotypes rs7493 CG+GG, rs7785846 CT+TT, rs12026 CG+GG, and rs7786401 GT +TT may be associated with the susceptibility to occupational noise-induced deafness among Chinese Han population exposed to high noise levels, and the effects of mutant genotypes and noise exposure levels may be mutually enhanced.

Adult ; Aryldialkylphosphatase ; genetics ; Case-Control Studies ; Female ; Genetic Predisposition to Disease ; Genotype ; Hearing Loss, Noise-Induced ; etiology ; genetics ; Humans ; Male ; Middle Aged ; Noise, Occupational ; adverse effects ; Polymorphism, Single Nucleotide ; Risk Factors

BACKGROUNDWhite blood cell (WBC) counts and differentials performed using an automated cell counter typically require manual microscopic review. However, this last step is time consuming and requires experienced personnel. We evaluated the clinical efficiency of using flow cytometry (FCM) employing a six-antibody/five-color reagent for verifying automated WBC differentials.

METHODSA total of 56 apparently healthy samples were assessed using a five-color flow cytometer to verify the normal reference ranges of WBC differentials. WBC differentials of 622 samples were also determined using both a cell counter and FCM. These results were then confirmed using manual microscopic methods.

RESULTSThe probabilities for all of the parameters of WBC differentials exceeded the corresponding normal reference ranges by no more than 7.5%. The resulting WBC differentials were well correlated between FCM and the cell counter (r > 0.88, P < 0.001), except in the case of basophils. Neutrophils, lymphocytes, and eosinophils were well correlated between FCM and standard microscopic cytology assessment (r > 0.80, P < 0.001). The sensitivities of FCM for identification of immature granulocytes and blast cells (72.03% and 22.22%, respectively) were higher than those of the cell counter method (44.92% and 11.11%, respectively). The specificities of FCM were all above 85%, substantially better than those of the cell counter method.

CONCLUSIONThese five-color FCM assays could be applied to accurately verify abnormal results of automated assessment of WBC differentials.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Child ; Child, Preschool ; Female ; Flow Cytometry ; methods ; Humans ; Infant ; Leukocyte Count ; methods ; Leukocytes ; cytology ; Male ; Middle Aged ; Young Adult

OBJECTIVETo investigate the immunoregulation effects of umbilical cord mesenchymal stem cells (UC-MSCs) on the rats with collagen II induced arthritis (CIA).

METHODSThe rats were first immunized by intradermal injection of chicken collagen type II emulsified with complete Freund's adjuvant (CFA) to monitor their swelling of foot, hair color and action state. After injected UC-MSC by caudal vein, the rats were scored with the arthritis index (AI) once a week. Then, the concentration of interleukin (IL-6), tumor necrosis factor-α (TNF-α) in serum and D-dimer (D-D), antithrombin-III (AT-III), thrombomodulin (TM) in plasma were detected by ELISA.

RESULTSObvious swellings of the feet were found in the experiment group compared with normal one. ELISA analysis showed that the concentrations of IL-6, TNF-α, D-D and TM in plasma of the experiment group as of (200.48 ± 15.04) ng/L, (450.25 ± 45.39) ng/L, (274.26 ± 67.93) ng/L and (9.18 ± 0.84) µg/L, respectively were higher than of(167.62 ± 0.97) ng/L, (371.44 ± 21.26) ng/L, (193.95 ± 8.22) ng/L and (6.30 ± 0.32) µg/L respectively in normal group (P < 0.05), but the concentration of AT-III \[(89.57 ± 6.40) ng/L\] was lower than normal group \[(112.82 ± 1.74) ng/L\] (P < 0.05). The levels of cytokines through the UC-MSCs treatment were significantly different from the model group (P < 0.05). After 9 weeks, these cytokines in the UC-MSCs group were mostly the same as the normal group.

CONCLUSIONThe thrombophilia status of the CIA rats was caused by immune injury. The UC-MSCs reduced the production of inflammatory cytokines and regulated and repaired the balance of coagulation and anticoagulation system of the body to cure the immune-related thrombophilia.

Animals ; Antithrombins ; blood ; Arthritis, Experimental ; immunology ; physiopathology ; prevention & control ; Female ; Fibrin Fibrinogen Degradation Products ; analysis ; Inflammation ; Interleukin-6 ; blood ; Mesenchymal Stem Cell Transplantation ; Rats ; Rats, Sprague-Dawley ; Thrombosis ; prevention & control ; Tumor Necrosis Factor-alpha ; blood ; Umbilical Cord ; cytology