Nucleic acid aptamers are ligands with high specificity and affinity for their targets, which are screened from large oligonucleotide pools by the SELEX technology. Their characteristics are superior to antibodies in many aspects, which make them important in the research of recognition of molecules. They can be used to determine the levels and inhibit the bioactivity of their targets. There're broad application prospects for aptamers in the diagnosis and treatment of tumor.

Objective To explore the impact of juxtapapilary duodenal diverticulum on the formation of choledocholithiasis and biliary manometry after surgery.Methods The clinical data of 97 patients with common bile duct stones who successfully underwent ERCP and biliary manometry treatment from May 2011 to March 2014 were retrospectively analyzed.Ninty-seven common bile duct stone patients were divided to two groups,that is,52 cases of juxta-papilary duodenal diverticulum (experimental group) and 45 cases without juxta-papilary duodenal diverticulum (control group).The biliary manometric results before and after EST of both groups were compared.Results The basal pressure of sphincter Oddi of the experimental group before EST [(84.8 ± 26.1) mmHg] was higher than that of the control group before EST [(75.5 ± 14.6) mmHg] (P ＜ 0.05,1 mmHg =0.133 kPa);and that after EST was also higher than that of the control group after the operation[(19.8 ± 14.2)mmHg VS (15.9 ± 9.8)mmHg,P ＜ 0.05].The biliary pressure of common bile duct stone patients with JPD was higher than those without JPD before and after EST but with no significant difference(P ＞ 0.05).The biliary manometry was performed in 81 patients after one month and it was found that the basal pressure of sphincter Oddi of experimental group was still higher than that of the control group [(34.8 ± 17.1) mmHg VS (29.6 ± 15.3)mmHg,P ＜ 0.05].The biliary pressure of common bile of the experimental group was higher than that of the control group [(19.9 ± 11.2) mmHg VS (17.1 ± 13.1)mmHg,P ＜0.05].Conclusion The existence of juxtapapilary duodenal diverticulum increases the pressure of common bile duct and Oddi sphincter and leads to CBD stones.

Objective To improve the mammographic diagnostic level of breast ductal diseases.Methods X-ray features,operationand pathologic findings in 166 cases of breast disease were retrospectively analyzed.Results The galactography of all 166 cases showed the manifestations including 78 cases of mammoductal ectasis with ductal dilatation,smooth wall;2 cases of ductal ectasis complicated by infection with ductal dilatation,inregular coarsening wall and interstitial extravasation of contrast medium;11 cases of mammoglandular cystic lobular hyperplasia with cyetic dilatation of terminal ducts in different sizes;49 cases of intraductal papilloma with sound as ovoid fillingdefects showing as interrupted smooth bordered,"cupping" in 26 cases of intraductal papillary carcinoma or intraductal carcinoma with post dilatation ductal stenosis and sigid "amputation" absuption together with sound cauliflower or inregular filling defects.In this series of 166 cases,75 cases vice prover to be tumor(45.1%) with malignancy in 26 cases(15.7%).Conclusion Galactography is an important method for diagnosis and differential diagrosis of mammoglandular disease with nipple discharge.

Animals ; Arthritis, Experimental ; metabolism ; pathology ; Breast Neoplasms ; pathology ; Cadherins ; metabolism ; physiology ; Cell Movement ; Female ; Fibroblasts ; cytology ; pathology ; Humans ; Macrophages ; cytology ; pathology ; Neoplasm Invasiveness ; Synovial Membrane ; cytology ; metabolism ; pathology

Severe combined immunodeficiency(SCID)is a kind of severe primary immunodeficiency disease.Patients often develop symptoms after birth, which is characterized by recurrent and life-threatening infection, sometimes accompanied by varying degrees of dysplasia.According to the classification proposed by the PID expert Committee of the International Union of Immunological Societies, SCID is clinically classified by the number of lymphocytes.Early screening and intervention of SCID is significant to improve the prognosis.With the promotion of TREC and other early screening methods, the detection rate of SCID has significantly improved, but the accurate detection rate in different ethnic groups still needs further explored.Hematopoietic stem cell transplantation is a traditional therapy for radical cure of SCID.And the safety of gene therapy for SCID has been gradually guaranteed with continuous improvement during recent years.This article will review the classification, early screening methods and treatment progress of SCID.

Objective To investigate the effect of bed rest on acute nonspecific low back pain(ANLBP).Methods87 cases were randomly divided into bed rest group (42 cases) and free activity group (45 cases).The bed rest group would be proper activity indoor and step up activity outdoor after absolute in bed for a week.The free activity group would be prescribed free activity.At the same time,all of them received physiotherapy and non-steroidal anti-inflammatory drugs (NSAIDs).The visual analogous scale (VAS) were measured before and 2 weeks after treatment.The Roland-Morris disability questionnaire (RMDQ) were measured before and 2,6 weeks after treatment.ResultsThe difference of VAS and RMDQ scores between these 2 groups were not significant before treatment (P>0.05),but were significant 2 weeks after treatment(P<0.05).Further more,the difference of RMDQ scores between these 2 groups were not significant 6 weeks after treatment (P>0.05).ConclusionThe bed rest about patients could not promote,but delay the improvement of the pain and disability in the early period or later period recovery of ANLBP.

In this study, a combination of metabolomics and network pharmacology was used to study the pharmacodynamic substances and mechanism of action of Yiyi Fuzi powder (YYFZ) on rheumatoid arthritis (RA) rats. The animal experiments were conducted in accordance with the requirements of the Experimental Animal Ethics Committee of Tianjin University of Traditional Chinese Medicine (approval number: TCM-LAEC2021241). The metabolomic analysis using UPLC-Q-TOF/MS technique identified 22 metabolites, including arachidonic acid, tryptophan, linoleic acid, phenylalanine, as significant biomarkers for the treatment of RA with YYFZ, and they were significantly regressed after YYFZ treatment. The analysis of YYFZ blood components also revealed that 11 blood components, including hypaconitine, benzoylhypaconitine, and deoxyaconitine, may be the components that exert direct pharmacological effects in YYFZ in vivo, and further network pharmacological analysis of blood components obtained that YYFZ may exhibit anti-inflammatory effects through acting on PI3K/Akt signaling pathway, estrogen signaling pathway, vascular endothelial growth factor (VEGF) signaling pathway. The results of this study provide implications for the clinical application of YYFZ.

OBJECTIVETo analyze the imaging features of osteopoikilosis and its diagnosis knowledge.

METHODSThe imaging data of 9 patients with osteopoikilosis were analyzed retrospectively, including 6 familial cases and 3 sporadic cases. In 6 familial cases,there were 4 males and 2 females with an average age of 28 years old ranging from 10 to 63 years. Clinical manifestations of 1 familial case were left knee pain and limitation of activity for 3 years, and other 5 cases without clinical manifestation. In 3 sporadic cases, there were 2 males and 1 female with an average age of 33.7 years old ranging from 25 to 44 years. Three sporadic cases had obvious injury history with following up from 6 to 12 months. All imaging results of 9 cases were observed.

RESULTSThe imaging data of 6 familial osteopoikilosis showed the multiple round or oval nodes within bone with clear margins, uniform density, different size. The occurrence of the hyperostotic spots preferentially localized in the epiphyses and metaphyses of the long bones, and carpus and tarus. X-ray features of 3 sporadic osteopoikilosis were similar to that of 6 familial cases and for 6 to 12 months follow-up X-ray features were unchanged.

CONCLUSIONThe imaging features of osteopoikilosis are relatively specific such as the multiple mottling dense focal within bone with clear border and bilateral symmetry, and the focus located on cancellous bone and the diaphyses usually is unaffected. The imaging is a valuable examination for the accurate diagnosis of osteopoikilosis.

Adolescent ; Adult ; Child ; Female ; Humans ; Male ; Middle Aged ; Osteopoikilosis ; diagnosis ; diagnostic imaging ; Pedigree ; Radiography ; Young Adult

Precision medicine is an emerging approach for disease treatment and prevention , which attempts to explore the effective means for protecting human health by synthetical consideration of individual variability in genes , environment and life style.Precision medicine has the prominent property of multidisciplinary intercrossing and fusion , the development of which claims rapid clinical application of advanced technology in the research of basic medical science.What kind of development opportunities are laboratory medicine confronted with under the novel medical mode? How can laboratory medicine and its researchers do to seize these opportunities and meet the challenges of precision medicine ? These questions are preliminary discussed in this paper.