Evaluation of peripheral nerve fibers and mast cells in burning mouth syndrome

Abstract Emerging evidence has revealed a cross-talk in the etiopathogenesis of burning mouth syndrome (BMS) related to peripheral nerve fibers (NF) and neuropeptides secreted by mast cells. Here, we investigated the S-100+ density and PGP 9.5+ integrity of peripheral NF and the tryptase+ mast cell density in the oral mucosa of BMS patients and healthy individuals. A total of 23 oral mucosa specimens (12 BMS and 11 controls) were evaluated. The clinical diagnosis of BMS was based on a careful examination, excluding other local and systemic causes. Samples were taken from an incisional biopsy of the tongue mucosa of individuals with symptomatic BMS, while the margins of the non-neoplastic tongue biopsy served as controls of healthy individuals. Immunohistochemistry was performed to determine the density/mm2 of S-100+, PGP 9.5+ peripheral NF, and tryptase+ mast cells. Similar densities of S-100+, PGP 9.5+ peripheral NF, and tryptase+ mast cells were found in cases of BMS, with a median value of 3.70, 0.70, and 29.24/mm2, respectively, and in the control group, with a median value of 2.60, 0.80, and 26.01/mm2, respectively (p > 0.05). Moreover, the relationship between S100+ and PGP 9.5+ peripheral NF was the same in both groups (p = 0.70). This study demonstrated that there were no alterations in the density and integrity of peripheral NF in the tongue of symptomatic BMS patients. However, the sensitization of peripheral NF in this disease may not depend on mast cell density.

Value of neuron specific enolase and S-100β protein in cerebrospinal fluid in the diagnosis and treatment of children with viral encephalitis and meningitis / 中国基层医药

Objective:To investigate the changes and clinical significance of neuron specific enolase (NSE) and S-100β protein levels in cerebrospinal fluid of children with viral encephalitis and meningitis.Methods:Sixty children with viral encephalitis and meningitis admitted to The Second Hospital of Jiaxing from February 2018 to December 2020 were included in the observation group. An additional 30 children without central nervous system diseases who concurrently received treatment in the same hospital were included in the control group. The value of NSE and S-100β protein levels in the diagnosis and treatment of viral encephalitis and meningitis in chiblren were analyzed.Results:NSE and S-100β protein levels in the observation group were (17.683 ± 1.321) μg/L and (1.755 ± 0.129) μg/L, respectively, which were significantly higher than (5.267 ± 0.907) μg/L and (0.827 ± 0.172) μg/L in the control group ( t = 46.25, 28.65, both P < 0.001). NSE and S-100β protein levels in children with mild viral encephalitis and meningitis were (15.219 ± 0.870) μg/L and (1.456 ± 0.113) μg/L, respectively, which were significantly lower than (19.893 ± 1.066) μg/L and (2.014 ± 0.085) μg/L in children with severe viral encephalitis and meningitis ( t = -18.69, -21.32, both P < 0.001). In children with viral encephalitis and meningitis, NSE and S-100β protein levels during the acute phase were (17.250 ± 1.188) μg/L and (1.683 ± 0.096) μg/L, respectively, which were significantly higher than (11.150 ± 0.971) μg/L and (1.147 ± 0.098) μg/L during the convalescence phase ( t = 30.79, 30.27, both P < 0.001). Conclusion:NSE and S-100β protein levels in cerebrospinal fluid of children with viral encephalitis and meningitis can help evaluate the severity of viral encephalitis and meningitis in children, providing important clinical application value for judging the development and prognosis of viral encephalitis and meningitis.

Levels of the interleukins 17A, 22, and 23 and the S100 protein family in the gingival crevicular fluid of psoriatic patients with or without periodontitis,

Abstract Background: Psoriasis and periodontitis are immunologically mediated chronic inflammatory diseases. Epidemiologic evidence has linked both; however, the change of markers in gingival crevicular fluid has been poorly evaluated. Objective: To evaluate the levels of IL-17A, IL-22, IL-23, S100A7, S100A8, and S100A9 in gingival crevicular fluid of psoriatic and healthy subjects with and without periodontitis and their relations to psoriasis severity. Methods: Cross-sectional study. Sample comprised the following groups: healthy controls without periodontitis or with mild periodontitis (n = 21), healthy controls with moderate or severe periodontitis (n = 18), individuals with psoriasis without or mild periodontitis (n = 11), and individuals with psoriasis and moderate or severe periodontitis (n = 32). Levels of IL-17A, IL-22, IL-23, S100A8, and S100A9 were determined by multiplex assay and S100A7 was measured by ELISA. Results: No inter-group differences in the levels of IL-17A, IL-22, IL-23, and S100A7 were found. S100A8 levels were higher in psoriatic patients than controls (p < 0.05). S100A8 was positively correlated with psoriasis severity in the group with psoriasis (p < 0.05). S100A9 exceeded the detection limits. Study limitations: This pilot study presents a small sample size. Conclusions: The concentrations of S100A8 were highest in psoriatic patients regardless of periodontal health/status. S100A8 was associated with the severity of psoriasis. The concentrations of interleukins and S100A7 were similar in psoriatic patients with or without periodontitis vs. healthy controls.

Immunohistochemical analysis of S100-positive epidermal Langerhans cells in dermatofibrom

Abstract Dermatofibroma is a dermal fibrohistiocytic neoplasm. The Langerhans cells are the immunocompetent cells of the epidermis, and they represent the first defense barrier of the immune system towards the environment. The objective was to immunohistologically compare the densities of S100-positive Langerhans cells in the healthy peritumoral epidermis against those in the epidermis overlying dermatofibroma (20 cases), using antibodies against the S100 molecule (the immunophenotypic hallmark of Langerhans cells). The control group (normal, healthy skin) included ten healthy age and sex-matched individuals who underwent skin biopsies for benign skin lesions. A significantly high density of Langerhans cells was observed both in the epidermis of the healthy skin (6.00 ± 0.29) and the peritumoral epidermis (6.44 ± 0.41) vs. those in the epidermis overlying the tumor (1.44 ± 0.33, p < 0.05). The quantitative deficit of Langerhans cells in the epidermis overlying dermatofibroma may be a possible factor in its development.

Pediatric Granular Cell Tumor of the Breast: An uncommon neoplasm in an uncommon site and age group

Granular cell tumor (GCT) is a rare soft tissue neoplasm of Schwann cell origin. Most cases occur in adults; however, the precise incidence is unknown in children. GCT is usually a slow-growing, painless tumor involving the skin and soft tissues that is mostly located in the head and neck region, especially the tongue. The breast is one of the least common sites involved by GCT. This paper presents a 3-year-old girl who presented with a soft to firm, ill-defined swelling on the right breast with painful ulceration of the overlying skin. Fine needle aspiration rendered an initial diagnosis of fibrocystic change accompanied by apocrine metaplasia. Histologic evaluation of the excised breast mass revealed a benign granular cell tumor. Although rare, GCT of the breast should be included in the differential diagnosis for breast masses in pediatric patients. Proper diagnosis and timely management of this tumor are essential because of its malignant potential (<2% of cases) and high rate of local recurrence if not properly excised.

Serum S100B as a brain injury marker after intracerebral hemorrhage / 国际脑血管病杂志

Cerebrospinal fluid and level of blood S100B protein are significantly higher in patients with intracerebral hemorrhage,which are associated the differentiation of stroke,damage of blood-brain barrier,hematoma volume,brain edema,degree of nerve function defect,and outcomes.Therefore,S100B is expected to be used in the diagnosis of intracerebral hemorrhage,assessment of injury and outcomes,and even as a biomarker of therapeutic targets.

Detection S100B, P-Tau and Aβ1-42 proteins in the plasma of rheumatoid arthritis patients with mild cognitive impairment / 中华风湿病学杂志

Objective To investigate the plasma protein concentration of S100B protein,hyperphosphorylated tau protein (P-tau) and β-amyloid (Aβ1-42) of rheumatoid arthritis (RA) patients with mild cognitive impairment (MCI) and to provide a reference for clinical diagnosis and prevention of cognitive dysfunction of RA patients.Methods The subjects were consisted of three groups:RA patients with MCI,RA patients with normal cognitive function (NC) and healthy controls.The Montreal Cognitive Assessment (MoCA)was used to test patients' cognitive function,generalized anxiety disorder scale-7 (GAD-7) scale and 9-item patient health questionnaire-9 (PHQ-9) were used to exclude anxiety and depression of RA patients.The concentration of S100B protein,P-tau protein and Aβ1-42 protein in plasma was detected by enzyme-linked immunosorbent assay (ELISA),and the correlation among the concentration of S100B protein,P-tau protein and MoCA scores was analyzed by Pearson's chi-squared test.Results ① Cognitive scores showed that some RA patients had MCI.② The plasma levels of S100B (F=11.81,P＜0.05),P-tau (F=3.3,P＜0.05) protein in RA patients with MCI were higher than that in NC RA patients and the control group (P＜0.05).③ The clinical index analysis showed that the concentration of C reactive protein (CRP) in RA patients with MCI was higher than that in NC RA patients and healthy control,the difference was statistically significant (t=6.44,P＜0.05).④The levels of plasma P-tau (r=-0.539,P＜0.05),S100B (r=-0.346,P＜0.05),CRP (r=-0.358,P＜0.05) protein were negatively correlated with cognitive scores (P＜0.05).Conclusion CRP,S100B protein and P-tau protein are associated with the pathogenesis of RA patients with MCI.The consequences of plasma concentration test can be com-bined with cognitive assessment questionnaire to provide reference for clinical diagnosis of RA patients with MCI.

Application values of S100-β protein, homocysteine and high-sensitivity C-reactive protein in diagnosis of ischemic stroke / 中国医师杂志

Objective To investigate the application values of S100-β protein,homocysteine (Hcy) and high-sensitive C-reactive protein (hs-CRP) in the diagnosis of acute ischemic stroke(AIS).Methods A total of 73 patients with AIS were enrolled in this study.The Non-stroke patients with similar symptoms were selected as control group (n =50).The relationship between levels of S100-β protein,Hcy and hs-CRP and infarct volume was evaluated.The receiver operating characteristic (ROC) curve was used to evaluate the diagnostic values of single and combined detection of these indicators in AIS.Results The levels of S100-β protein,Hcy and hs-CRP were higher in AIS patients than those in control group after adjusting the major vascular risk factors (P ＜ 0.05).There were significant differences in S100-β protein,Hcy and hs-CRP between different groups according to the infarct volume (P ＜ 0.05).S100-β protein,Hcy and hs-CRP positively were correlated with infarct volume (r =0.625,P =0.000;r =291,P =0.012;r =0.396,P =0.001 respectively).ROC curves showed that the diagnostic performances for AIS were as follows:S100-β protein (AUC =0.809,sensitivity:65.8％,specificity:82.0％),Hcy (AUC =0.775,sensitivity:54.8％,specificity:84.0％),hs-CRP (AUC =0.698,sensitivity:58.9％,specificity:78.0％) and Combined detection (AUC =0.878,the sensitivity:68.5 ％,specificity:94％).Conclusions S100-β protein,Hcy and hs-CRP protein can be used as biomarkers for AIS,which can help the diagnosis of AIS.S100-β protein can be used as a biomarker to evaluate the severity of AIS,Hcy and hs-CRP can also reflect the severity of AIS to some extent.Single detections of S100-β protein,Hcy and hs-CRP show limited value in the diagnosis of AIS.Combined detection gains a high specificity,but sensitivity is not very high.

Effects of different anesthesia modes on POCD occurrence, serum S-100β and Aβ1-42 proteins in TURP patients after elderly patients / 中国医师杂志

Objective To investigate the effects of general anesthesia and hard epidural anesthesia on the incidence of postoperative cognitive dysfunction (POCD),serum S-100β and Aβ1-42 protein in elderly patients with transurethral resection of the prostate (TURP).Methods 120 cases of elderly male patients who wanted to implement TURP were enrolled in this study.From March 2014 to August 2016,60 patients underwent general anesthesia (general anesthesia group) and 60 patients underwent epidural anesthesia (hard epidural Group).The effects of two anesthesia methods on the cognitive function,serum S-100 β and Aβ1-42 protein were compared.Results There was no significant difference in mini-mental state examination (MMSE) score in preoperative,postoperative 12 h,postoperative 24 h,postoperative 72 h,and postoperative 1 week between hard epidural group and general anesthesia group (P ＞ 0.05).The MMSE scores at 12 h,24 h and 72 h after operation in both groups were significantly lower than those before operation in both groups (P ＜0.05).There was no significant difference in clock drawing task (CDT) score in preoperative,24 h after operation,72 h after operation and one week after operation (P ＞ 0.05).The CDT scores of both groups at 12 h,24 h,72 h after operation were significantly lower than those before operation (P ＜0.05).There was no significant difference in serum S-100β levels between the two groups at preoperative and 12 h,72 h after operation (P ＞0.05).Serum S-100β levels at 12 h and 72 h after surgery in both groups were significantly higher than those before surgery (P ＜ 0.05).There was no significant difference in preoperative and postoperative 12 h,postoperative between hard epidural group and general anesthesia group (P ＞ 0.05).Serum Aβ1-42 levels at preoperative,12 h and 72 h after operation in both groups were significantly lower than those before operation (P ＜ 0.05).There was not statistically significant in the incidence of POCD between hard epidural group [28.33 ％ (17/60)] and general anesthesia group [35％ (21/ 60)] (P ＞ 0.05).Conclusions There was no significant difference in the incidence of POCD between general anesthesia and hard epidural anesthesia group in elderly patients with TURP.The incidence of POCD in elderly patients was related to the decrease of serum S-100β and the decrease of Aβ1-42.

Expression of serum S100 calcium binding protein in preterm premature rupture of membrane / 中国医师进修杂志

Objective To study the role of serum S100 calcium binding protein (S100A12) in preterm premature rupture of membrane induced chorioamnionitis. Methods Thirty-six patients with preterm premature rupture (preterm premature rupture group), 48 patients with term birth premature rupture (term birth premature rupture group) and 17 normal pregnant women (control group) were selected. The blood routine, S100A12, C response protein (CRP), glycohemoglobin (GHB) levels were detected and compared. Results The S100A12 in preterm premature rupture group was significantly higher than that in term birth premature rupture group and control group: (1 193.6 ± 443.1) ng/L vs. (787.7 ± 482.6)and(610.5 ± 449.0)ng/L,and there was statistical difference(P<0.01);but there was no statistical difference between term birth premature rupture group and control group(P<0.05).In preterm premature rupture group, S100A12 levels in the gestational diabetes mellitus (GDM) and non-GDM patients were significantly higher than those in control group:(1 225.4 ± 422.5)and(1 168.2 ± 468.2)ng/L vs. (610.5 ± 449.0) ng/L, and those in GDM patients were significantly higher than those in non-GDM patients, and there were statistical differences (P<0.05). In preterm premature rupture group, the S100A12 showed significant positive correlation with CRP, neutral granulocyte percent and GHB (r =0.236, 0.222 and 0.378; P<0.05 or <0.01). Conclusions S100A12 would have an important role in the mechanism of preterm premature rupture of membrane combined with GDM induced chorioamnionitis.

Study of serum levels and skin expression of S100B protein in psoriasis

Abstract Background: S100B protein was reported to be elevated in psoriatic patients' serum, with no previous evaluation of its skin expression, in contrast to the extensively studied S100 protein. Objective: To evaluate the serum level and skin expression of S100B in psoriasis to assess its possible involvement in its pathogenesis. Methods: Serum level of S100B protein was estimated in 40 psoriatic patients of different clinical varieties and 10 healthy controls. S100B protein expression was assessed immunohistochemically in lesional and non-lesional skin of patients and in normal skin of controls. Relation to disease severity was also evaluated. Results: Serum level of S100B protein was significantly higher in psoriatic patients (0.15±0.03 µg/l) than in controls (0.03±0.007 µg/l) (P-value <0.001) with no significant correlation with PASI score. On comparing grades of S100B protein skin expression in lesional and non-lesional skin biopsies, a statistically significant difference was found (P=0.046) with higher percentage of strong S100B skin expression (60%) in non-lesional than in lesional (42%) skin. All the control biopsies showed negative expression. Study limitations: Relatively small sample size with a limited range of low PASI scores. Conclusion: This study points to a potential link between psoriasis and S100B protein with higher serum and skin expression in patients than in controls.

Clinicopathologic features of mammary analogue secretory carcinoma of salivary glands / 中华病理学杂志

Objective@#To investigate the clinicopathological features of mammary analogue secretory carcinoma (MASC) of salivary glands, and its diagnosis, differential diagnosis, immunohistochemistry and molecular pathology.@*Methods@#Seventeen cases of MASC were enrolled, with 9 cases of salivary acinar cell carcinoma and 18 cases of adenoid cystic carcinoma as control groups from Nanjing General Hospital from 1997 to 2014 were included in this retrospective study, combined with immunohistochemistry and molecular detection of ETV6-NTRK3 gene fusion. All cases were histologically reviewed with immunohistochemical staining (EnVision) for S-100 protein, SOX10, GATA3, CD117 expression in each group. Fluorescence in situ hybridization (FISH) was used to detect the ETV6-NTRK3 gene fusion.@*Results@#The age of MASC patients ranged from 27 to 74 years with mean age of 47 and ratio of male and female was 4∶3. All cases showed infiltrative growth and diverse cytology and histology, including lobular (8 cases), cystic papillary (3 cases), cribriform mixed with papillary and glandular structures (6 cases) at various proportions. Some tumors of MASC also exhibited solid growth areas with occasional microcystic honeycombed pattern composed of small cysts merged into larger cysts resembling thyroid follicles. S-100 protein and SOX10 were strongly positive in all MASC cases (17/17). In addition, there was insignificant positivity for GATA3 (3/17) and CD117 (4/17). ETV6 gene fusion detection was informative in 12 MASC cases by FISH with 10 positive cases and 2 negative cases.@*Conclusions@#Combined immunohistochemical positivity of S-100 protein, CD117 and SOX10 are useful in the diagnosis and differential diagnosis of MASC. FISH detection of ETV6-NTRK3 fusion offers an additional molecular diagnostic marker for the diagnosis.

Correlation of plasma levels of S100β protein and neuron-specific enolase with viral load in vesicle fluid and peripheral blood of patients with herpes zoster / 中华皮肤科杂志

Objective To detect the varicella-zoster virus (VZV) DNA load in vesicle fluid and peripheral blood,as well as plasma levels of S100β protein and neuron-specific enolase (NSE) in patients with herpes zoster before and after treatment,and to explore their correlations.Methods Vesicle fluid samples were collected before treatment,and peripheral blood samples before and after treatment from 50 inpatients with acute herpes zoster in the Department of Dermatology of the Affiliated Hospital of Southwest Medical University,and peripheral blood samplcs were also obtained from 20 heahhy controls.Real-time fluorescence-based quantitative PCR (qRT-PCR) was performed to determine the viral load in the vesicle fluid and peripheral blood samples,and enzyme-linked immunosorbent assay (ELISA) to detect the plasma levels of S100β protein and NSE.Results VZV DNA was present in all the vesicle fluid samples,as well as in peripheral blood samples from 18 patients before treatment and 5 patients after treatment,but not found in any of the healthy controls.Positive correlation was found bctween the viral load in vesicle fluid and plasma levels of S 100β protein and NSE (r =0.535,0.430,respectively,both P ＜ 0.05) in the patients with acute herpes zoster.Before treatment,patients with VZV DNA in peripheral blood showed significantly increased plasma levels of S100β protein and NSE compared with those without (both P ＜ 0.05),and the viral load in peripheral blood was positively correlated with plasma levels of S100β protein and NSE (r =0.711,0.645,respectively,both P ＜ 0.05).Conclusion VZV DNA is present in some patients with herpes zoster,and increased VZV DNA loads in the vesicle fluid and peripheral blood are related to elevated plasma levels of S100β protein and NSE before treatment.

Decreased S100B expression in chronic liver diseases

BACKGROUND/AIMS: Hepatic innervation in liver diseases is not fully understood. We here evaluated S100B expression as a marker of hepatic nerves in patients with various chronic liver diseases, topographically and semi-quantitatively. METHODS: Liver specimens were obtained from 70 subjects (three controls, and 32 chronic hepatitis B, 14 chronic hepatitis C, 14 liver cirrhosis, and seven hepatocellular carcinoma patients). The hepatic nerve density was calculated based on immunohistochemical staining of S100B protein in the portal tracts and hepatic lobules. S100B mRNA levels were semi-quantitatively assessed as the S100B/glyceraldehyde 3-phosphate dehydrogenase (GAPDH) mRNA ratio. RESULTS: The densities of the hepatic nerves in portal tracts of chronic liver diseases were not significantly different from those of normal controls but the hepatic nerve densities in lobular areas of liver cirrhosis were significantly decreased (p = 0.025). Compared to the control, the S100B/GAPDH mRNA ratio was significantly decreased in chronic liver diseases (p = 0.006) and most decreased in chronic hepatitis C patients (p = 0.023). In chronic liver diseases, The S100B/GAPDH mRNA ratio tended to decrease as the fibrosis score > 0 (p = 0.453) but the overall correlation between the S100B/GAPDH mRNA ratio and fibrosis score was not statistically significant (r = 0.061, p = 0.657). CONCLUSIONS: Hepatic innervation is decreased in cirrhotic regenerating nodules compared to the control group and seems to decrease in early stages of fibrosis progression. Further studies are needed to clarify the association between changes of hepatic innervation and chronic liver disease progression.

Congenital Non-Neural Granular Cell Tumor Mimicking Nevus Lipomatosus Superficialis

A 4-month-old infant presented with asymptomatic soft nodules on his right forearm, which had developed since birth. On the suspicion of nevus lipomatosus superficialis (NLS), biopsy was performed. Histopathologic findings showed monomorphic polygonal cells with abundant granular cytoplasm. Immunohistochemical stains for CD68 and vimentin were strongly positive, but were negative for S-100 protein. Based on the pathologic findings, the patient was diagnosed as non-neural granular cell tumor (NN-GCT). GCT can be divided into conventional and non-neural GCT by immunoreactivity for S-100 protein. NN-GCT is typically manifested as a well-circumscribed, papulo-nodular dermal mass, and is known to occur in a younger group than does in conventional GCT, but is rare among children. To our knowledge, there have been no case reports of NN-GCT which appeared at birth and presented as grouped nodules. Therefore, we report this interesting case of congenital NN-GCT clinically mimicking NLS.

Expression of S100 protein in primary retroperitoneal liposarcoma and its correlation with prognosis / 中国医师进修杂志

Objective To explore the correlation of S100 protein with the prognosis of patients with primary retroperitoneal liposarcoma. Methods Analyzed the clinical data about 108 patients with primary retroperitoneal liposarcoma managed with surgery from January 2009 to June 2014. All patients were followed up. Patients were divided into S100-positive group(58 patients) and S100-negative group (50 patients) according to the immunohistochemical staining results. The overall survival time and all clinical data between two group were compared. Results All patients with primary retroperitoneal liposarcoma received radical surgical resection for the first time. The overall 5-year recurrence rate were 88.9%(96/108), and the median recurrence time was 32.7 months. The 1-year, 2-year, and 5-year recurrence rates of the S100- positive group were 25.9% (15/58), 53.4% (31/58), 96.6% (56/58), respectively, and the median recurrence time were 26.2 mouths. The 1-year, 2-year, and 5-year recurrence rates of the S100-negative group were 10.0%(5/50), 36%(18/50), 80.0%(40/50) and the median recurrence time were 40.0 mouths. Log-rank test showed that S100 protein expression was significantly associated with postoperative recurrence rates (c2=9.931, P=0.002) and survival time (c2=4.571, P = 0.033). The difference between gender, age, removal of the joint organs and tumor size showed no statistical significance on disease special survival (P>0.05). Cox regression analysis showed that S100 protein expression (OR=1.582, 95%CI:1.005-2.491) and histologic subtype (OR=1.531, 95%CI: 1.254-1.870) were independent risk factors of the prognosis of primary retroperitoneal liposarcoma patients. Conclusions S100 protein played a critical role in retroperitoneal liposarcoma carcinogenesis and its expression may be used as a potential survival predictor in patients with primary retroperitoneal liposarcoma.

Research progress of ischemic cerebrovascular disease and S-100β MMP-9 / 中国医师杂志

Ischemic cerebrovascular disease is a common and frequently occurring disease in the elderly.It has the characteristics of high disability rate,high mortality rate,and high recurrence rate,which seriously threatens the life and health of the elderly.At present,clinical diagnosis and evaluation are mainly based on medical history,neurological symptoms and signs and imaging examination.The incidence of ischemic cerebrovascular disease is rapid,the existing diagnostic methods have different degrees of hysteresis and limitations in the diagnosis time.Related clinical study found that in the process of ischemic cerebrovascular disease accompanied by serum S-100 beta,matrix metalloproteinase-9 (MMP-9)-related indicators of change.This article reviews the recent progress of S-100 beta and MMP-9 in ischemic cerebrovascular disease.

Research progress of the association between pro-inflammatory cytokines and osteoarthritis / 天津医药

Osteoarthritis (OA) is the main reason of joint pain and dysfunction in the elderly in China, and its incidence is increasing year by year. In addition to the joint peripheral osteophyte formation and degeneration of articular cartilage, in?flammation, as one of the dominant pathological changes in OA, is causing more and more attention. Pro-inflammatory cyto?kines (PIC) are important mediators of inflammation. The increased level of PIC in OA can lead to systemic and local inflam?mation, results in further destruction of many kinds of tissues in joint (such as cartilage), and accelerates the development of OA. Besides, the severity of inflammation is closely related to the clinical symptoms of OA. Therefore, it is important to un?derstand the role of PIC in the pathogenesis of OA. From the perspective of the relationship between pro-inflammatory fac?tors and OA and the molecular mechanism, this article reviews the research progress in this field, which provides new con?cepts for diagnose and treatment of OA.

Hornerin Is Involved in Breast Cancer Progression / 한국유방암학회지

PURPOSE: The S100 gene family, which comprises over 20 members, including S100A1, S100A2, S100A8, S100A9, profilaggrin, and hornerin encodes low molecular weight calcium-binding proteins with physiological and pathological roles in keratinization. Recent studies have suggested a link between S100 proteins and human cancer progression. The purpose of the present study was to determine the expression levels of hornerin, S100A8, and S100A9 and evaluate their roles in the progression of invasive ductal carcinoma (IDC). METHODS: Seventy cases of ductal carcinoma in situ (DCIS), IDC, and metastatic carcinoma in lymph nodes (MCN) were included. Tissue microarrays were constructed from lesions of DCIS, IDC, and MCN from the same patients. Expression of hornerin, S100A8, and S100A9 was analyzed using immunohistochemistry. RESULTS: The expression of hornerin was associated with the estrogen receptor-negative (p=0.003) and the human epidermal growth factor receptor 2-positive (p=0.002) groups. The expression of S100A8 was associated with a higher pT stage (p=0.017). A significant (p0.050) different. The expression of hornerin increased in a stepwise manner (DCIS

Fleabane combined with bone marrow mesenchymal stem cell transplantation for cerebral infarction / 中国组织工程研究

BACKGROUND:Cel transplantation becomes a new approach for treatment of cerebral infarction. In recent years, bone marrow mesenchymal stem cels (BMSCs) have become an important kind of seed cels in cel transplantation. OBJECTIVE: To investigate the effect of fleabane injection combined with BMSC transplantation on S100B protein and superoxide dismutase expression in acute cerebral infarction rats. METHODS:Animal models of acute cerebral infarction were made in Sprague-Dawley rats using suture method. After successful modeling, 80 model rats were randomly divided into control group, fleabane group, BMSC group and combined group (fleabane combined with BMSC transplantation). Changes of serum S100B protein and serum superoxide dismutase levels were detected using enzyme-linked immunosorbent assay and xanthine oxidase method, respectively, before and after treatment. NIHSS neurological function scores were measured to observe neurological behavior changes in model rats. The infarct volume was measured by TTC staining. RESULTS AND CONCLUSION:At 36, 7, 14 days after treatment, S100B protein levels in the fleabane group and BMSC group were significantly lower than that in the control group, but higher than that in the combined group (P <0.05); serum superoxide dismutase levels in the fleabane group and BMSC group were significantly higher than that in the control group, but lower than that in the combined group (P < 0.05). At 1, 2, 3 weeks after treatment, NIHSS neurological function scores were ranked as folows: combined group < fleabane group and BMSC group < control group, and there was a significant difference between groups (P < 0.05). At 2 weeks after treatment, the infarct volume in the fleabane group and BMSC group was higher than that in the combined group but lower than that in the control group (P < 0.05). These findings indicate that fleabane combined with BMSC transplantation can inhibit the expression of S100B protein in rats with acute cerebral infarction, and promote the activity of superoxide dismutase, thereby playing a neuroprotective role.