Objective: To analyze the electrocardiographic (ECG) characteristics in patients with primary hyperparathyroidism (PHPT) and meanwhile, to explore the relationship between ECG abnormality and serum calcium level in relevant patients. Methods: Our study included 2 groups: Observation group,n=84 PHPT patients treated in our hospital from 2010-01 to 2014-04 and Control group,n=80 normal subjects from regular physical examination at the same period. The ECG manifestation was compared between 2 groups. Meanwhile, according to tertile levels of serum calcium, PHPT patients were further divided into 3 subgroups:①Ca2+ level (2.0-2.8) mmol/L,②Ca2+ level (2.8-3.1) mmol/L,③Ca2+ level >3.1 mmol/L andn=28 in each subgroup. The ECG abnormalities were compared among 3 subgroups and the relationship between ECG changes and serum calcium levels were studied. Results: The ECG abnormality rates in Observation group and Control group were as 83.3% vs 18.8%, P<0.001. Compared with Control group, Observation group presented more frequent ST-T changes, QRS duration widening, high left ventricular pressure and QT interval shortening,P<0.001 orP<0.05. In observation group, with the rising of serum calcium, the incidences of ST-T changes and high left ventricular pressure were increased accordingly, the ST-T changes among 3 subgroups were significant,P<0.05; while with the rising of serum calcium, the QT interval was shortened and QRS duration was widened accordingly, the differences were obvious among 3 subgroups, allP<0.05.Conclusion: PHPT patients have the higher incidence with abnormal ECG, while ECG abnormality has beenrelated to serum calcium level in relevant patients.

OBJECTIVE: To observe the clinical and pathological features of adenoid cystic carcinoma(ACC) of external auditory canal (EAC, and analyze the possible factors related to prognosis. METHOD: One out of 8 patients with ACC of EAC underwent tumor open biopsy. 5 patients underwent the extensive tumor resection, and 2 patients underwent the modified lateral temporal bone resection (1 of the 2 subjoined a total parotidectomy). Five patients received the postoperative radiotherapy. RESULT: The time of follow up was 5-97 months. Two patients were loss to follow-up, 5 patients with disease free survival, and 1 patient survival with tumor. CONCLUSION In this study, ACC of EAC is more often observed in female. The most common clinical manifestations are otalgia and neoplasm which grows slowly. The disease has high misdiagnosis rate. Surgical treatment is effective for it.
Biopsy ; Carcinoma, Adenoid Cystic ; pathology ; therapy ; Diagnostic Errors ; Disease-Free Survival ; Ear Canal ; Ear Neoplasms ; pathology ; therapy ; Female ; Humans ; Male ; Prognosis ; Retrospective Studies

OBJECTIVETo study the clinicopathological features of primary squamous cell carcinoma (SCC) of breast and the diagnosis and treatment of the disease.

METHODSThe clinical, operative and pathological data from 7 cases of SCC of breast were retrospectively analysed.

RESULTSFive patients complained of painless mass and two of them were accompanied with local pain. All patients were diagnosed as having SCC by fine-needle aspiration before operation. Two patients underwent modified radical mastectomy, and the others received radical mastectomy. Pathological examination showed primary squamous cell carcinoma of the breast with metastasis to axlliary lymph nodes in one patient. Follow-up of four patients revealed that two patients are living well and two patients died. Three patients lost to follow up.

CONCLUSIONThe diagnosis of primary squamous cell carcinoma of the breast is dependent on pathological results. Radical mastectomy including modified radical mastectomy is most effective in the treatment of mammary SCC. Postoperative chemotherapy and radiation are necessary auxiliary therapy.

Adult ; Aged ; Breast Neoplasms ; diagnosis ; pathology ; therapy ; Carcinoma, Squamous Cell ; diagnosis ; pathology ; therapy ; Female ; Humans ; Middle Aged ; Prognosis ; Retrospective Studies

With the development of imaging technology,the detection rate of gallbladder benign lesions has increased year by year.And part of the diseases may evolve into gallbladder cancer through a series of pathophysiologic processes.There are some misunderstandings in the understanding of gallbladder benign lesions for surgeons,so it is difficult for the clinical decision-making.The relationship between gallbladder benign lesions and gallbladder cancer should be correctly understood.Surgeons can neither exaggerate the risk of gallbladder cancer nor miss optimal timing of operation.The key point of the diagnosis and treatment of gallbladder benign lesions should be based on making full use of imaging data and strictly grasp pre-and intraoperative indications,and it is important to identify the malignant transformation of gallbladder benign lesions as soon as possible and carry out standardized treatment.

This paper is to build a finite element model of brain with a real brain shapeon which simulation studies of electrical impedance tomography EIT in the brain is based. A curve of a real brain shape is simulated with the curve-fitting methods and EIT in the brain is finished with finite-element methods and Equipotential Lines Back-Projection algorithm.The locationarea and amplitude of the change of the resistivity are reconstructed accurately. But the image quality has to be further improved.This paper provides a basis for clinical applications of EIT in brain.

Objective To explore the effects of luteolin on cognition function in pentylenetetrazol (PTZ)-induced epileptic rats and related mechanism.Methods Fifty male SD rats were randomly divided into a normal control group(n=8), a model group(n=12), and groups of 25, 50 mg/kg luteolin(both ofn=11), as well as 100 mg/kg luteolin group(n=8). Those rats were given different doses of luteolin (25, 50 and 100 mg/kg, daily, intragastric administration) for 36 consecutive days. Similarly, rats of the normal control group and the model group were given 0.5% sodium carboxymethyl cellulose suspension liquid via intragastric administration. Thirty minutes later, a model of epilepsy was induced using PTZ (40 mg/kg, daily) via intraperitoneal injection except the control group. Learning and memory of rats were evaluated by Morris water maze and novel objective recognition trials(including escape latency and recognition index). The levels of CaM and CaMPK were determined by ELISA methods, and expression of Ras proteins in the hippocampus were detected by Western Blot.Results Compared with the model group, luteolin treatment groups significantly shorten the escape latency(28.51 ± 3.84 s, 19.77 ± 5.41 s, 14.86 ± 2.76 svs. 37.08 ± 5.18 s) in the Morris water maze, and increased recognition index(18.77% ± 2.02%, 25.06% ± 4.32%, 31.92% ± 2.65%vs. 13.87% ± 2.14%) in the novel objection trial(P<0.05 orP<0.01). Meanwhile, CaM(140.33 ± 13.52 ng/L, 124.26 ± 9.97 ng/L, 113.52 ± 11.57 ng/Lvs. 158.36 ± 10.68 ng/L) and CaMPK(8.25 ± 1.37 ng/ml, 7.69 ± 0.84 ng/ml, 6.74 ± 0.93 ng/mlvs. 9.87 ± 1.02 ng/ml) were significantly decreased(P<0.05 orP<0.01). What’s more, the expression of Ras proteins(0.99 ± 0.08, 0.76 ± 0.07, 0.52 ± 0.07vs. 1.58 ± 0.12) was obviously decreased compared with the model group(P<0.05 orP<0.01).Conclusion Luteolin could effectively improve the cognition dysfunction of epileptic rats, and the mechanism might be relevant to regulate the CaM-CaMPK signaling pathway via down-regulation of CaM, CaMPK, as well as Ras protein.

Objective: To explore the determinants for health-seeking behavior of the residents after cough for more than 3 weeks in Yiwu, Zhejiang Province, in order to provide reference for prevention and control of respiratory diseases. Methods: A multi-stage cluster random sampling method was used to recruit the community residents aged 5 years and above in Yiwu. A face-to-face questionnaire survey was conducted to collect demographic information, features of cough and health-seeking behaviors in the past month. The multivariate logistic regression model was employed to analyze the associated factors for health-seeking behavior after a cough for more than 3 weeks. Results: Among 6 374 residents investigated, 152 cases had a cough for more than 3 weeks in the past month, accounting for 2.48%. They were( 45.00±21.15 ) years old, including 70 ( 46.05% ) males and 82 ( 53.95% ) females. About 58.55% ( 89 ) of them sought medical treatment. The results of multivariate logistic regression analysis showed that females ( OR=2.100, 95%CI: 1.005-4.391 ), middle school education level ( OR=0.406, 95%CI: 0.168-0.983 ), family annual income of 100 000 to 199 999 yuan ( OR=2.993, 95%CI: 1.215-7.373 ) were associated factors for health-seeking behavior after a cough for more than 3 weeks. Conclusion The rate of health-seeking behavior after a cough for more than 3 weeks among the residents in Yiwu is 58.55%, which is associated with gender, education level and income.

Objectives To investigate the ability of T1 mapping and intravoxel incoherent motion imaging (IVIM) parameters for evaluating renal allografts at the early stage after renal transplantation. Methods This prospective study protocol was approved by the local ethics committee, and written informed consent was obtained from all subjects. Sixty two recipients 2 to 4 weeks after kidney transplantation and 20 healthy volunteers (control group) underwent routine MRI, T1 mapping, and IVIM imaging (11 b values, 0 to 700 s/mm2). Recipients were divided into two groups base on their estimated glomerular filtration rate (eGFR):37 recipients with good allograft function (eGFR≥60 ml·min-1·1.73 m-2) and 25 recipients with impaired allograft function (eGFR<60 ml·min-1·1.73 m-2). The ADC, true diffusion coefficient (ADCslow), pseudo-diffusion coefficient (ADCfast), perfusion fraction (f) and T1 values were measured on both cortex and medulla. Differences among groups were compared using the one-way analysis of variance. Correlations between eGFR and the parameters in renal allografts were assessed by using Pearson correlation analysis. ROC was performed to assess the diagnostic utilities of using these parameters to discriminate allografts with impaired function from good function. Results Excepting for cortical T1, ADCfast and medullary T1, f values, allografts with good function showed no differences in other parameters compared with healthy control. Excepting for medullary T1 and ADCfast,the other values showed significantly differences in allografts with impaired function compared to allografts with good function (all P<0.05). Excepting for medullary f and ADCfast values, allografts with impaired function showed significantly differences in the parameters compared with good function group(all P<0.05). In renal allografts, excepting for medullary T1, ADCfast, and f values, cortical T1 exhibited a negative correlation with renal function, and there was a significant positive correlation between eGFR and other parameters. Cortical T1 value showed high sensitivity(91.9%) to discriminate renal allografts with different function, with the threshold of 17.36 × 102 ms, and ADC value showed high specificity(96.0%)with the threshold of 1.98 × 10-3 mm2/s. Conclusion T1 mapping and IVIM technique may be useful for detecting renal allograft dysfunction, and be a reliable imaging for evaluating and monitoring allograft function.

Objective: To analyze the epidemiological characteristics of coronavirus disease 2019 ( COVID-19 ) clusters in Lishui, so as to provide basis for the prevention and control of COVID-19 clusters. Methods: The data of COVID-19 clusters in Lishui from January 23 to March 29, 2020 were collected through China Disease Control and Prevention Information System-Public Health Emergency Information System, and analyzed time, space, scale, source of infection, exposure and transmission route by descriptive epidemiological method. Results: There were 31 cases in 8 clusters ( about 4 cases per cluster ), with no death. The report time was bimodal, peaked first from January 20 to February 10 with 4 clusters imported from domestic and peaked second from March 1 to 29 with 4 clusters imported from overseas. Qingtian County reported 4 clusters, Liandu District, Yunhe County, Qingyuan County and Jingning County each reported 1 cluster. Thirteen cases were restaurant employees, accounting for 41.94%. The cases were mainly occurred in the condition that exposed in the same family ( 6 clusters ), in the same dinner and car ( 1 clusters ), and in the same party ( 1 clusters ). The exposure modes that caused more cases infected were through the same family (9 cases) and through the same dinner and car ( 6 cases ). There were 3 clusters with first-generation cases, 3 clusters with second-generation cases and 2 clusters with third-generation cases. The recurrence rate of the 8 clusters ranged from 1.49% to 7.69%, with a median of 3.47%. Conclusions The COVID-19 clusters in Lishui imported from domestic in the early stage and later from overseas. Most cases were reported from Qingtian County, were engaged in catering business, and exposed by living with families.

OBJECTIVETo investigate the expression level of inhibitor of apoptosis protein survivin gene in human brain glioma and its role in malignant proliferation and antiapoptosis of brain glioma.

METHODSEighty-three cases of brain glioma specimen was chosen, protein expression of survivin and proliferating cell nuclear antigen (PCNA) was investigated by immunohistochemistry streptavidin-biotin complex (SABC) method, the immunoreactivity score (IRS) of survivin and the proliferative index (PI) were counted. Apoptotic cells were screened by TdT-mediated dUTP-biotin nick-end labeling (TUNEL) method, and the apoptotic index (AI) of brain glioma was calculated.

RESULTSThe survivin IRS, PI and AI of brain glioma were 3.8 +/- 3.9, (28.4 +/- 19.5)% and (1.0 +/- 0.8)% respectively, and all of them were elevated with the increase of pathological grade of brain glioma (P < 0.01 for all). PI in survivin positive group was significantly higher than that in survivin negative group (P < 0.01), and PI was positively correlated with survivin IRS (r = 0.740, P < 0.01). There was no significant difference between AI in survivin positive group and that in survivin negative group (P > 0.05), however, AI was negatively correlated with survivin IRS (r = -0.307, P < 0.01).

CONCLUSIONSSurvivin is overexpressed in brain glioma, and which may play important roles in malignant proliferation and antiapoptosis of brain glioma.

Adolescent ; Adult ; Aged ; Apoptosis ; Brain Neoplasms ; genetics ; metabolism ; pathology ; Cell Proliferation ; Child ; Child, Preschool ; Female ; Glioma ; genetics ; metabolism ; pathology ; Humans ; Immunohistochemistry ; In Situ Nick-End Labeling ; Inhibitor of Apoptosis Proteins ; Male ; Microtubule-Associated Proteins ; biosynthesis ; genetics ; Middle Aged ; Neoplasm Proteins ; biosynthesis ; genetics ; Proliferating Cell Nuclear Antigen ; biosynthesis