bluuebunny/crossref_metadata_2025_split huggingface dataset:
Clinical significance of tumor cells in the peripheral blood of patients with esophageal squamous cell carcinoma
Authors: Han Lu , Li Yun-Jie , Zhang Wei-Di , Song Ping-Ping , Li Hao , Li Sheng 
Published: February 2019

Abstract
Circulating tumor cells (CTCs) are suspected of predicting the prognosis of malignant tumor, but there are few relevant reports specific to esophageal squamous cell carcinoma (ESCC). This study investigated the clinical significance of CTCs in patients with ESCC.
Sixty patients with ESCC were enrolled, from whom CTCs had been tested by our team previously. Peripheral blood samples were obtained from these patients before treatment; and CTCs were assayed by isolation by size of epithelial tumor cells (ISET). Associations between the presence of CTCs and patients’ clinicopathological parameters and clinical outcomes were analyzed.
CTCs were detected in 20 patients (33.3%), who experienced significantly shorter progression-free survival (PFS) than did the CTC-negative patients. Overall, PFS was negatively associated with the number of CTCs. Multivariate analyses showed that a CTC count >2 was a strong independent prognostic indicator of tumor recurrence (hazard ratio [HR] 5.63; 95% confidence interval [CI] 1.77–17.89; P = .003). In the subgroup of 50 patients who underwent R0 resection and postoperative adjuvant radiotherapy or chemotherapy, CTC was a strong, independent, and prognostic indicator of tumor recurrence (HR 10.70; 95% CI, 1.40–81.91; P = .022). The number of CTCs correlated with the T stage (r = 0.26, P = .043) but not with the N or M stage. For subgroups in stages II or I-IIIB or T3 or T3 + T4, the PFS of patients with CTCs > 1 or > 2 was significantly shorter than that of the patients with CTCs ≤ 1 or CTCs ≤ 2. In the stage III or T3 + T4 groups, the PFS of patients with CTCs > 0 was significantly shorter than that of patients with CTC = 0.
This is the first study to report that the CTC detected by ISET is an independent and prognostic indicator of patients’ outcome in ESCC. Consideration of CTCs may improve the accuracy of preoperative staging in ESCC.
Neuromyelitis optica spectrum disorder coincident with renal clear cell carcinoma
Authors: Jin Haiqiang , Hao Hongjun , Nan Ding , Luo Jingjing , Wang Lei , Gao Feng , Huang Yining 
Published: February 2019

Abstract

Rationale:
Detection of aquaporin-4 (AQP4) antibody in cerebrospinal fluid (CSF) was not suggested for the diagnosis of neuromyelitis opica spectrum disorders (NMOSD). However, some patients with NMOSD have only AQP4 antibody positive in CSF but not in serum with unknown cause. Besides, it is rarely reported that NMOSD complicated with renal clear cell carcinoma. So, the relationship between AQP4-Ab, NMOSD and malignant tumors warrants an investigation.

Patients concerns:
A 31-year-old female presented in our hospital with chief complaints of urinary retention and weakness in bilateral lower extremities for more than 10 days.

Diagnoses:
The patient was diagnosed as NMOSD by neuroimaging and laboratory examination, with AQP4 antibody positive only in CSF. Besides, asymptomatic clear cell carcinoma was also found in left kidney.

Interventions:
The patient underwent 2-month immunosuppressive therapy for NMOSD at first, including intravenous administration of immunoglobulin (IVIG) and methylprednisone, with oral drugs of predisone and tacrolimus. After that, Partial nephrectomy of left kidney was performed.

Outcomes:
The patient demonstrated almost complete remission for NMOSD after immunosuppressive therapy, and the renal tumor was cured by partial nephrectomy.

Lesson:
This case indicates that neuromyelitis optica (NMO)-IgG positive only in CSF could have potential association with the etiology of NMOSD, and renal clear cell carcinoma could be found complicated with NMOSD coincidently. Besides, it is necessary to examine NMO-IgG in CSF for patients suspicious with NMOSD, even when the serum test is negative, especially for those with complicated malignant tumors.
Meta-analysis of efficacy and safety of custirsen in patients with metastatic castration-resistant prostate cancer
Authors: Zhang Xuebao , Liu Chu , Li Kui , Wang Ke , Zhang Qiqiang , Cui Yuanshan 
Published: February 2019

Abstract
Custirsen is the second-generation antisense oligonucleotide (ASO), which can reduce cellular levels of clusterin to increase the cytotoxic effect of chemotherapeutic drugs. Our study assessed the efficacy and safety of custirsen in patients with metastatic castration-resistant prostate cancer (mCRPC).
We conducted a comprehensive search to identify all the randomized controlled trials (RCTs) of custirsen for the treatment of mCRPC. The reference lists of the retrieved studies were investigated.
Three publications involving a total of 1709 patients were used in the analysis. We found that overall survival (OS) (P = .25) was not statistically significant in the comparison. Safety assessments indicated custirsen were often associated with complications resulting from neutropenia (P < .001), anaemia (P < .001), thrombocytopenia (P < .001), and diarrhea (P = .002).
Our meta-analysis shows that custirsen has no obvious effect on improving the OS of patients with mCRPC. Adverse reactions were more common among those patients treated with custirsen as compared to those treated with placebo.
Helicobacter pylori infection and risk of salmonella infection
Authors: Salama Rasha I. , Emara Mohamed H. , Mostafa Hanan M. , Abd-Elsalam Sherief , Alnabawy Sherein Mohamed , Elshweikh Samah A. , Zaghloul Mariam Salah 
Published: February 2019

Abstract

Helicobacter pylori (H pylori) infection is the most frequent infection worldwide and it has been postulated that it predisposes to multiple enteric pathogens and diarrheal diseases. Salmonella infection is common in tropical and under developed communities and is associated with wide range of diseases from gastroenteritis to typhoid fever. This study aimed at detecting the impact of H pylori infection on the incidence of salmonella infections.
The study participants were sampled from cohorts of patients in four university hospitals in different Egyptian Governorates. Their age ranged from 20 to 59 years and followed up for a rising Widal test. Case patients (n = 109) were subjects who visited the outpatient clinic because of diarrhea and typhoid like illness. They were either positive for H pylori stool antigen (n = 53) or negative to it (n = 56). All patients were subjected to thorough history taking, clinical examination, routine laboratory investigations, abdominal ultrasonography, H pylori stool antigen detection, and serial Widal test assay.
The proportion of salmonella-infected subjects was lower among case patients with H pylori infection (22.6%) than among those negative for H pylori (33.9%) albeit not statistically significant (adjusted odds ratio [OR], 0.57; 95% confidence interval [CI], 0.24–1.33; P = .21). The association persisted nonsignificant after adjusting for sociodemographic variables (adjusted OR, 0.5; 95% CI, 0.18–1.39; P = .18). In a multivariate analysis that adjusted for sex, dietary habits, socioeconomic status, and educational level subjects who eat outdoors were associated with a significantly greater risk of salmonella typhi infection.
Our findings suggest that there is no association between H pylori infection and salmonella infection in patients presented with typhoid fever or typhoid like illness.
Weighted gene co-expression network analysis reveals modules and hub genes associated with the development of breast cancer
Authors: Qiu Juanjuan , Du Zhenggui , Wang Yao , Zhou Yuting , Zhang Yuanxin , Xie Yanyan , Lv Qing 
Published: February 2019

Abstract
This study aimed to identify modules associated with breast cancer (BC) development by constructing a gene co-expression network, and mining hub genes that may serve as markers of invasive breast cancer (IBC).
We downloaded 2 gene expression datasets from the Gene Expression Omnibus (GEO) database, and used weighted gene co-expression network analysis (WGCNA) to dynamically study the changes of co-expression genes in normal breast tissues, ductal carcinoma in situ (DCIS) tissues, and IBC tissues. Modules that highly correlated with BC development were carried out functional enrichment analysis for annotation, visualization, and integration discovery. The hub genes detected by WGCNA were also confirmed using the Oncomine dataset.
We detected 17 transcriptional modules in total and 4 — namely tan, greenyellow, turquoise, and brown — were highly correlated with BC development. The functions of these 4 modules mainly concerned cell migration (tan module, P = 3.03 × 10−4), the cell cycle (greenyellow module, P = 3.08 × 10−13), cell–cell adhesion (turquoise module, P = .002), and the extracellular exosome (brown module, P = 1.38 × 10−22). WGCNA also mined the hub genes, which were highly correlated with the genes in the same module and with BC development. The Oncomine database confirmed that the expressions levels of 6 hub genes were significantly higher in BC tissues than in normal tissues, with fold changes larger than 2 (all P < .05). Apart from the 2 well-known genes EPCAM and MELK, during the development of BC, KRT8, KRT19, KPNA2, and ECT2 also play key roles, and may be used as new targets for the detection or treatment of BC.
In summary, our study demonstrated that hub genes such as EPCAM and MELK are highly correlated with breast cancer development. However, KRT8, KRT19, KPNA2, and ECT2 may also have potential as diagnostic and prognostic biomarkers of IBC.
Association of serum adiponectin with breast cancer
Authors: Yu Zeping , Tang Shenli , Ma Hongbing , Duan Hong , Zeng Yong 
Published: February 2019

Abstract

Background:
Emerging published studies have indicated that adiponectin is involved in tumorigenesis of breast cancer. However, the results of available studies were inconsistent. The aim of this updated meta-analysis was to assess the association of adiponectin with breast cancer.

Materials and methods:
PubMed, EMBASE, Wanfang databases, and the China National Knowledge Infrastructure (CNKI) were systematically searched from inception to June 2018. The mean difference (MD) with 95% confidence interval (CI) were estimated and pooled to investigate the effect sizes.

Results:
Twenty-seven eligible articles that met the study criteria were included in the current meta-analysis. Overall, there was an evident inverse association between serum adiponectin levels and breast cancer (MD = −0.29, 95%CI = (−0.38, −0.21), P < .001). Asian subgroup showed a significant negative association between serum adiponectin concentrations and breast cancer in subgroup analysis by ethnicity (MD = −2.19, 95%CI = (−3.45, −0.94), P < .001). However, no statistical significance was found in Caucasian subgroup (MD = −0.65, 95%CI = (−1.47, 0.17), P = 0.12). Additionally, a further subgroup analysis of Asian stratified by menopausal status showed higher concentrations of adiponectin in healthy control group, whether they were premenopausal (MD = −0.85, 95%CI = (−1.50, −0.19), P = .01) or postmenopausal (MD = −2.17, 95%CI = (−4.17, −0.18), P = .03). No significant difference was observed concerning the association between serum adiponectin and breast cancer metastasis (MD = −1.56, 95%CI = (−4.90, 1.78), P = .36).

Conclusion:
The current meta-analysis suggests that the serum adiponectin may be inversely associated with breast cancer. Decreased serum adiponectin levels in premenopausal women may also be inversely associated with breast cancer risk other than postmenopausal status. In addition, low serum adiponectin levels in Asian women were more likely to be associated with breast cancer risk than Caucasian women.
Assessment of nutritional status by dual X-Ray absorptiometry in women with rheumatoid arthritis
Authors: Reina Delia , Gómez-Vaquero Carmen , Díaz-Torné Cesar , Solé Joan Miquel Nolla 
Published: February 2019

Abstract
Rheumatoid arthritis (RA) has been related to an impairment of the nutritional status. Body mass index (BMI) has been used but questions arise about how to properly evaluate nutritional status in RA patients. Few studies have evaluated it by dual-energy X-ray absorptiometry.
In women with RA, to analyze:
Case–control study including 89 women with RA. The control group was composed by 100 patients affected by non-inflammatory rheumatic disorders. Study variables included age, RA duration, history, activity and disability, and in relation to nutritional status: BMI, serum albumin (ALB), whole body DXA assessment, and skeletal muscle index (SMI).
Mean age of patients was 62 ± 8 years, mean duration of RA was 14 ± 9 years, mean disease activity score (DAS28) was 3.7 ± 1.4 and mean Health Assessment Questionnaire was 0.88 ± 0.77. BMI was 27.43 ± 5.16 Kg/m2 in patients and 27.78 ± 3.98 Kg/m2 in controls (P: ns). ALB was within normal range in all patients.
By whole body DXA, RA patients presented a statistically significant lower lean mass in all locations and lower fat mass in limbs than controls. Patients had a redistribution of fat mass to trunk. Lean mass directly correlated with fat mass.
Neither BMI nor ALB correlated with DXA parameters.
BMI, appendicular lean mass and SMI correlated inversely with disease duration. Trunk lean mass correlated inversely, and fat mass directly, with RA disability parameters.
RA patients fulfilled criteria of sarcopenia in 44% of cases versus 19% of controls (P <.001). In RA patients, regarding SMI, BMI showed a high specificity to detect sarcopenia (94% of the patients with low BMI had sarcopenia) but low sensitivity (47% of the patients with normal BMI or overweight had sarcopenia).
RA patients have an impairment of nutritional status associated to disease duration that looks like sarcopenia and that is not predicted by BMI.
Clinical characteristics and surgical outcome of prolactinoma in patients under 14 years old
Authors: Zhao Yi , Jin Di , Lian Wei , Xing Bing , Feng Ming , Liu Xiaohai , Wang Renzhi 
Published: February 2019

Abstract
Prolactinoma is one of the most common pituitary tumors, but relatively uncommon in patients under 14 years old. Surgery is the second-line treatment for prolactinoma when patients show resistance or intolerance to medical therapy. There are only a few published series of children who underwent surgery treatment. This study is performed to investigate the clinical manifestation and surgical outcome of pituitary prolactinoma in patients under 14 years old who are resistant or intolerant to medical therapy of dopamine agonist.
Thirty-six cases were included in a retrospective review of patients under 14 years old operated for prolactinoma between December 1987 and December 2015. Preoperative radiological and endocrinal evaluation was performed on every patient. All patients received operation with trans-sphenoidal approach.
Based on enhanced pituitary magnetic resonance imaging (MRI) taken 2 months after the surgery, total resection was achieved in 16 patients (44.4%) and subtotal resection in 20 (55.6%). Thirty-four cases (94.4%) showed remarkable decrease of prolactin (PRL) level 7 days after surgery, and 16 (44.4%) returned to normal. All patients were followed up for 2 years. Tumor regrowth or recurrence occurred in 5 patients and secondary treatment was applied, including drug treatment in 2 patients, second surgery in 2, and radiotherapy in 1.
Trans-sphenoidal pituitary surgery is an effective treatment for prolactinoma in patient under 14 years old. There is no significant difference between the patients under 14 years old and adults for prolactinoma in characteristics and treatment.
Photobiomodulation with simultaneous use of red and infrared light emitting diodes in the treatment of temporomandibular disorder: study protocol for a randomized, controlled and double-blind clinical trial
Authors: Sousa Dowglas Fernando Magalhães de , Gonçalves Marcela Letícia Leal , Politti Fabiano , Lovisetto Renan Didier de Paula , Fernandes Kristianne Porta Santos , Bussadori Sandra Kalil , Mesquita-Ferrari Raquel Agnelli 
Published: February 2019

Abstract

Introduction:
Temporomandibular disorder (TMD) is considered the main cause of orofacial pain of non-dental origin, and a public health problem. The symptomatology is muscular and/or articular pain, restriction of the mandibular range of motion, and changes in the mandibular movement pattern. Due to its complexity there are already treatments using various forms of therapy. Photobiomodulation using light sources, such as low-level laser or light emitting diodes (LED), with different wavelengths, in a single or combined form, allows one more therapeutic resource to be explored. The objective of this study is to evaluate the effects of photobiomodulation with the simultaneous use of red and infrared LEDs, on pain, range of mandibular movements, and on the electrical activity of masticatory muscles in individuals with TMD.

Methods:
A randomized, controlled, double-blind clinical trial is proposed, which will involve 33 individuals (n = 11 per group) of both sexes, ages 18 to 45 years in 3 groups: LED group; placebo group; and control group, submitted to 6 non-consecutive sessions of photobiomodulation totaling 2 weeks of treatment. The Research Diagnostic Criteria for Temporomandibular Disorders—RDC/TMD will be used to assess and determine the participants’ TMD. The pain will be assessed using the Visual Analog Scale – VAS, the mandibular range of motion will be determined with the aid of a digital caliper, and the electrical activity of the masticatory muscles will be verified by electromyography. A mixed plate of 18 red LEDs—660 nm and 18 infrared LEDs—850 nm with power of 3.5 mW per LED, 4.45 mW/cm2, radiant exposure of 5.35 J/cm2, will be used for photobiomodulation. The irradiated area will be 14.13 cm2, and energy of 75.6 J, in the TMJ region and in the bilateral masseter and temporal muscles. Participants from all groups will be reassessed after the first therapeutic intervention, and at the end of treatment.

Discussion:
We expect the use of photobiomodulation with LEDs, infra and red, to reduce pain, improve temporomandibular joint function in patients with TMD, and thus improve the general conditions of the patient.
Association between perioperative hypothermia and surgical site infection
Authors: Bu Ning , Zhao Enfa , Gao Yuan , Zhao Sha , Bo Wang , Kong Zhidong , Wang Qiang , Gao Wei 
Published: February 2019

Abstract

Background:
A majority of reports in the past decade have demonstrated that perioperative hypothermia increases susceptibility to surgical site infection (SSI). However, in recent years, an increasing number of studies did not find an association between hypothermia and the risk of SSI. These contradictory results have given rise to a conflicting issue on whether perioperative hypothermia is associated with SSI risk in surgical patients.

Methods:
We examined the association between perioperative hypothermia and SSI incidence and then integrated available evidence by searching the databases, such as PubMed, Web of Science, Embase, and Cochrane library for potential papers from inception to April 2018. We included studies that reported original data or odds ratio (OR) with 95% confidence intervals (CIs) of the associations. Using fixed-effects models combined the OR with 95% CIs, randomized controlled trials and observational studies were analyzed, respectively, and cohort studies were further analyzed. Sensitivity analyses were performed by omitting each study iteratively, and publication bias was detected using Begg's tests.

Results:
We screened 384 studies, and identified 8 eligible studies, including 2 randomized controlled trials and 6 observational studies (1 case–control study and 5 cohort studies). The pooled OR results in the randomized controlled studies showed that perioperative hypothermia could increase the risk of SSI without heterogeneity (OR, 1.60; 95% CI, 1.14–2.23; I
2 = 0.0%, P = .845). The fixed-effect meta-analysis indicated no association between perioperative hypothermia and SSI risk in observational studies (OR, 0.98; 95% CI, 0.96–1.01; I
2 = 53.2%, P = .058). Furthermore, cohort studies were performed to pool OR by using the fixed-effect model, and the incorporated results also suggested a similar relationship (OR, 1.13; 95% CI, 0.97–1.33; I
2 = 46.4%, P = .113).

Conclusion:
The meta-analysis suggests that perioperative hypothermia is not associated with SSI in surgical patients. However, the 8 eligible studies were mostly cohort studies. Thus, further randomized controlled trials are required to confirm this finding.
Global diabetic kidney disease research from 2000 to 2017
Authors: Zou Lu-Xi , Sun Ling 
Published: February 2019

Abstract

Background:
This study aimed to analyze the scientific outputs of diabetic kidney disease (DKD) research and explore its hotspots and frontiers from 2000 to 2017, using bibliometric methods.

Methods:
Articles in DKD research between 2000 and 2017 were retrieved from the Web of Science Core Collection (WoSCC). We used the VOSviewer 1.6.8 and CiteSpace 5.2 to analyze publication years, journals, countries, institutions, authors, references, and keywords. Keywords with citation bursts were used to analyze the research hotspots and emerging trends.

Results:
We identified 27,577 publications in DKD research from 2000 to 2017. The annual publication number increased with time. Nephrology Dialysis Transplantation published the highest number of articles. The United States was the most influential country with most publications and collaborations with other countries. Harvard University was the leading institute. Parving had the most cited publications. Keywords analysis indicated that the renin–angiotensin system inhibition used to be the most prevalent research topic, while recent research hotspots were podocyte, inflammation, and biomarker. The biomarkers for DKD screening, diagnosis, and prognosis could be a research frontier.

Conclusions:
The number of DKD related publications rapidly increased over the past 2 decades. Our study revealed the structure, hotspots, and evolution trends of DKD research. Further studies and more collaborations are needed.
Severe acute interstitial nephritis induced by valsartan
Authors: Chen Tong , Xu Peng-cheng , Hu Shui-yi , Yan Tie-kun , Jiang Jian-Qing , Jia Jun-ya , Wei Li , Shang Wen-ya 
Published: February 2019

AbstractRationale:Angiotensin receptor blocker (ARB) can increase serum creatinine or potassium levels in patients with renal insufficiency, renal artery stenosis, heart failure or hypovolemia, but hardly cause severe kidney injury in patients without any risk factors. A case of severe acute interstitial nephritis (AIN) induced by valsartan was reported here.Patient concerns:A 62-year-old female with nausea for 1 month and acute deterioration of kidney function for 2 weeks was admitted. She had a history of hypertension for 5 months and had taken valsartan 40 mg daily for 4 months. Although the valsartan had been stopped for 2 weeks, the serum creatinine continuously increased after admission. Kidney biopsy demonstrated the eosinophils infiltration in interstitium.Diagnoses:AIN induced by valsartan.Interventions:The patient was treated with glucocorticoid.Outcomes:The serum creatinine decreased gradually and got back to normal level 5 months later. Then therapy of glucocorticoid was stopped. Renal artery stenosis was excluded by computed tomography angiography (CTA).Lessons:Although valsartan-induced allergy has been reported previously, AIN was firstly recognized as a severe complication of this drug. We suggest when there is a ARB-associated continuous deterioration of kidney function for patients without renal insufficiency, renal artery stenosis, heart failure or hypovolemia, AIN should be thought of and therapy with glucocorticoid should be considered if necessary.