Diagnosis, Differential ; Ependymoma ; metabolism ; pathology ; Female ; Hemangioblastoma ; metabolism ; pathology ; Humans ; Ki-67 Antigen ; metabolism ; Meningeal Neoplasms ; metabolism ; pathology ; surgery ; Meningioma ; metabolism ; pathology ; surgery ; Middle Aged ; Mucin-1 ; metabolism ; Neoplasm Recurrence, Local ; Vimentin ; metabolism

Objective To investigate the utility of P504S(?-methylacyl-COA racemase), CK34?E12,p63 and PSA immunohistochemistry in the pathological diagnosis of prostatic adenocarcinoma (PAC).Methods The specimens of 46 cases of PAC,8 cases of prostatic high-grade intraepithelial neo- plasia (HGP1N) and 35 cases of benign prostatic hyperplasia (BPH) tissues were immunohistochemically stained with P504S,CK3413E12,p63 and PSA antibody,respectively.Results Of the 46 PAC cases,42 (91.3%) cases showed positive for P504S,including 25 cases (54.3%) who showed strongly and diffusely positive (+++) for cytoplasmic staining.In 7 (87.5%) of the 8 HGPIN cases,the specimens were also positive for P504S,and only 1(2.9%)of the 35 BPH cases showed focally weakly positive (+) for P504S.All the 8 HGPIN cases (100%) and 33 (94.3%) of the 35 BPH cases showed positive for CK34?E12 and p63,while all the 46 PAC cases showed negative for CK34?E12 and p63.In 44 (95.7%) of the 46 PAC cases,the specimens were positive staining for PSA.Conclusions P504S has high sensitivity and good specificity in the diagnosis of PAC.P504S staining in combination with HE,CK34?E12,p63 and PSA staining can improve the accurate diagnosis of PAC.

Objective To determinate the antibacterial activity of linezolid and clindamycin agents of clinical methicillin -resistant Staphy-lococcus aureus ( MRSA ) in vitro.Methods The minimum inhibitory concentration ( MIC ) and minimum bactericidal concentration ( MBC ) of antibacterial agents were determined by the micro broth dilution method . Results The linezolid inhibition rate was 100%when the concentration was 2 μg · mL-1 , but clindamycin concentration was 32 μg · mL-1 . The MIC range of linezolid for MRSA was 0.25 ~2.00 μg · mL-1 , MIC50 was 1 μg · mL -1 , MIC90 was 2 μg · mL-1 , MBC50 was 8 μg· mL-1 , MBC90 was 16 μg· mL -1.The MIC range of clindamycin for MRSA was 0.25 ~32.00 μg · mL-1 , MIC50 was 16 μg · mL-1 , MIC90 was 32 μg · mL-1 , MBC50 was 32 μg · mL-1 , MBC90 was >64 μg· mL-1.Conclusion Clindamycin in the treatment of MRSA infection or suspected MRSA infection must depend on drug sensi-tivity test results.Linezolid in the treatment of MRSA infection or suspec-ted MRSA infection has higher reliability .

Adenocarcinoma ; metabolism ; pathology ; Adult ; Aged ; Aged, 80 and over ; Carcinoma, Non-Small-Cell Lung ; metabolism ; pathology ; Carcinoma, Squamous Cell ; metabolism ; pathology ; DNA-Binding Proteins ; metabolism ; Female ; Humans ; Lung Neoplasms ; metabolism ; pathology ; Lymphatic Metastasis ; Male ; Middle Aged ; Neoplasm Staging ; Prognosis ; Transcription Factors ; metabolism ; Tumor Burden ; beta Catenin ; metabolism

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Carcinoma, Renal Cell ; genetics ; metabolism ; Female ; Gene Expression Regulation, Neoplastic ; Humans ; Kidney Neoplasms ; genetics ; metabolism ; Male ; Matrix Metalloproteinase 2 ; genetics ; metabolism ; Middle Aged ; Transforming Growth Factor beta1 ; genetics ; metabolism ; Tumor Cells, Cultured ; Young Adult

Actins ; metabolism ; Angiomyoma ; metabolism ; pathology ; surgery ; Cranial Fossa, Middle ; Diagnosis, Differential ; Follow-Up Studies ; Humans ; Magnetic Resonance Imaging ; Male ; Melanoma-Specific Antigens ; metabolism ; Middle Aged ; Perivascular Epithelioid Cell Neoplasms ; immunology ; S100 Proteins ; metabolism ; Skull Base Neoplasms ; metabolism ; pathology ; surgery

OBJECTIVEMucopolysaccharidosis type II (MPSII) is a lethal, X-linked recessive disorder caused by mutation of iduronate-2-sulfatase (IDS) gene. Up to now there is no really effective treatment for this disorder, therefore it is important to provide an accurate genetic diagnosis and prenatal diagnosis for the MPSII families. In this study, we identify the pathogenic mutation in a Chinese family with MPSII.

METHODThe 8 years old male proband from a Chinese family was clinically diagnosed with MPSII. There are other 4 patients with similar phenotypes in the family who died at 9, 11, 7 and 10 years of age, respectively. Mutation analysis was carried out by polymerase chain reaction and direct sequencing of all exons and exon/intron boundaries of IDS gene. Denaturing high performance liquid chromatography (DHPLC) analysis was performed to screen the unknown variations of IDS gene in 100 unrelated control males.

RESULTTwo allelic variants of exon 5 (c.684A > G) and exon 6 (c.851C > T) and a nonsense mutation of exon 7 (c.892C > T) were detected in IDS gene of the proband. Heterozygous mutations c.684A > G, c.851C > T and c.892C > T were detected in both proband's mother and maternal grandmother. The unknown variations of c.684A > G and c.851C > T were not found in the 100 unrelated control males. The male fetus (IV11) inherited the same mutation of IDS gene as the proband.

CONCLUSIONMutation c.892C > T of IDS gene causes MPSII in this family and prenatal diagnosis in one affected fetus was achieved.

Adolescent ; Adult ; Asian Continental Ancestry Group ; genetics ; Child ; DNA Mutational Analysis ; Family ; Female ; Humans ; Iduronate Sulfatase ; genetics ; Male ; Middle Aged ; Mucopolysaccharidosis II ; diagnosis ; genetics ; Mutation ; Phenotype ; Pregnancy ; Prenatal Diagnosis

Objective:To observe the influence of dabigatran etexilate combined with aspirin+clopidogrel on coagulation function and ankle-brachial index(ABI)in patients with non-valvular atrial fibrillation(NVAF).Methods:A total of 108 NVAF patients who underwent percutaneous coronary intervention(PCI)in Huangshi Fourth Hospital Co.,Ltd be-tween January 2018 and October 2020 were selected,and divided into combined treatment group(n=54,dabigatran etexi-late+aspirin+clopidogrel)and control group(n=54,aspirin+clopidogrel)according to random number table meth-od.After 6-month treatment,coagulation function,toe-brachial index(TBI),ABI,thromboelastography,serum level of matrix metalloproteinase-9(MMP-9),incidence of embolic events,bleeding events and adverse reactions were com-pared between two groups.Results:After treatment,compared with control group,patients in combined treatment group had significant higher activated partial thromboplastin time(APTT)[(45.46±4.27)s vs.(52.38±5.03)s],prothrom-bin time(PT)[(13.14±1.33)svs.(15.32±1.57)s],thrombin time(TT)[(22.67±2.21)s vs.(27.05±3.15)s],TBI[(0.78±0.13)vs.(0.84±0.15)],ABI[(1.11±0.14)vs.(1.18±0.13)],R value[(11.43±3.42)s vs.(14.48±4.51)s],K value[(8.54±2.18)s vs.(10.78±3.26)s]and MA value[(46.06±15.11)mm vs.(55.49±18.26)mm],and significant lower serum MMP-9 level[(182.47±18.84)μg/mlvs.(165.52±14.17)μg/ml](P＜0.05 or＜0.01).Total incidence rates of embolic events(5.56％)and bleeding events(1.85％)in combined treatment group were significantly lower than those of control group(18.52％,14.81％)(P＜0.05 both).There was no significant difference in incidence rate of adverse reactions between two groups(P=0.687).Conclusion:Dabigatran etexilate combined with aspi-rin+clopidogrel can significantly improve coagulation function,reduce embolic events and bleeding events,and reduce ser-um MMP-9 level in NVAF patients without increasing adverse reactions.

OBJECTIVETo study the histopathologic changes of primary brain stem injury and to investigate their significance in the diagnosis of primary brain stem injury.

METHODSSixty-five autopsy cases died of primary brain stem injury and other diseases were enrolled into this study. The cases were subdivided into brain stem injury group (n = 25) and control group (including 20 cases died of cardiovascular disease and 20 cases died of non-cardiovascular diseases). The brain stem tissue sections were stained with hematoxylin-eosin and silver impregnation techniques. Immunohisto chemical study for glial fibrillary acidic protein, neurofilament, amyloid-beta and myelin basic protein was carried out. The widest cross diameters of 10 axons highlighted by immunostaining were measured in each low power field (x 100) through light miscroscopy in all the cases studied.

RESULTSIn comparing with that of the control group, there were differences in the degree of contusion lesion, reactive astrocytosis, edema and pathologic changes of neuronal cells present in the brain stem injury group and was statistically significant (P < 0.05). The axons locating in the brain stem injury group showed a distinctive histology by the appearance of significantly larger diameters (P < 0.05).

CONCLUSIONSPrimary brain stem injury demonstrates certain distinctive histopathologic changes and measurement of axonal diameters provides an additional quantitative index useful in autopsy diagnosis.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Amyloid beta-Peptides ; metabolism ; Axons ; metabolism ; pathology ; Brain Injuries ; metabolism ; pathology ; Brain Stem ; injuries ; metabolism ; pathology ; Female ; Glial Fibrillary Acidic Protein ; metabolism ; Humans ; Immunohistochemistry ; Male ; Middle Aged ; Myelin Basic Protein ; metabolism ; Neurofilament Proteins ; metabolism ; Young Adult

Chromatography, High Pressure Liquid ; methods ; Cyclic AMP Response Element-Binding Protein ; genetics ; Female ; Humans ; Male ; Nerve Tissue Proteins ; genetics ; Prenatal Diagnosis ; methods ; RNA-Binding Proteins ; genetics ; SMN Complex Proteins ; Sequence Analysis, DNA ; Spinal Muscular Atrophies of Childhood ; diagnosis ; genetics