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1.
The relationship between family functioning, social support, and medication compliance in 32 renal transplant children and their parents was examined. Results indicated that children whose fathers gave more emotional support or were more informative were less compliant with azathioprine and cyclosporine (P<0.05 for both). Children from families experiencing numerous stresses were also found to be less compliant with azathioprine (P<0.05). Finally, compared with older children, younger children were found to be less compliant with cyclosporine (P<0.005). Implications for predicting child adherence and for future research relating to compliance with multidrug regimens are discussed.  相似文献   

2.
Klebsiella pneumoniae , Escherichia coli , Streptococcus , Bacteroides , Enterococcus , among others. K. pneumoniae was more often found in a single abscess and E. coli more often in multiple abscesses. Percutaneous catheter drainage and aspiration comprised the main treatment initially, and the failure rate with multiple abscesses was higher than that with single abscesses. Surgical intervention should be considered for multiple abscesses because of the underlying disease. The overall mortality with multiple abscesses (22.1%) was higher than that with a single abscess (12.8%). Partial hepatectomy produced a low mortality rate for both single and multiple abscesses and should be considered in the presence of severe hepatic destruction by an abscess or a stone.  相似文献   

3.
Background: Chronic kidney disease (CKD) is associated with markedly increased cardiovascular (CV) risk. This increase is not fully explained by traditional CV risk factors but may in part be mediated by nontraditional risk factors, such as inadequate vitamin D (vit D) levels and insulin resistance (IR). Although IR is shown in nondiabetic CKD, its association with vit D deficiency and vascular disease in this population is unknown and what this study aims to investigate. Materials and methods: The study comprised 67 patients with CKD (eGFR?≥?30?mL/min) and 15 healthy controls matched for age and sex. The phlogosis indexes, vit D levels, IR, carotid intima-media thickness (cIMT), and left ventricular mass index (LVMI) were measured. Results: In our study, the mean value of LVMI and cIMT was significantly higher in patients with eGFR?≥?30?mL/min compared with controls (p?=?0.037 and p?p?=?0.044, p?=?0.012, p?=?0.038). A positive correlation was found between LVMI and IR (r?=?0.704, p?=?0.041) and a negative correlation was found between IR and vit D levels (r?=??0.238, p?=?0.031). Conclusions: In our study, IR and vit D deficiency were found to be independent predictors of left ventricular hypertrophy and atherosclerotic disease. Vitamin D deficiency and IR are thus associated with increased CV risk. More novel approaches to improving IR and vit D supplementation in the CKD population might lead to potential strategies for preventing excess CV mortality.  相似文献   

4.
Male infertility is a major health problem worldwide. We investigated a possible association between leptin, obesity, hormonal interplay and male infertility. This cross‐sectional study of 313 males (178 infertile and 135 fertile) was carried out in 2017. The subjects were categorised by body mass index (BMI) and body fat percentage (BF%) into normal weight, overweight and obese. Significantly higher levels of BMI and BF% (p‐value < 0.001) and lower levels of FSH, LH, testosterone, and SHBG (p‐value < 0.001) were found in infertile males. However, no significant difference was observed in leptin levels (p‐value = 0.35). Leptin levels were significantly higher, and all the sex hormones were significantly lower (p‐value < 0.001) in obese subjects, whereas according to BF% only leptin, FSH and SHBG were significantly different. Leptin showed a significant positive correlation with BMI and BF% (< 0.001). A strong positive link to serum testosterone was found with age, FSH, and LH (p < 0.001) and a negative one with BMI and BF% (p < 0.001). In mutivariable anlaysis, after adjusting for the other covariates, a significant association between FSH and testosterone (p‐value <0.001) was found. Serum leptin levels did not differ significantly in fertile and infertile groups, and no association was found with infertility. Furthermore, male obesity was found to be associated with infertility with the decrease in levels of sex hormones.  相似文献   

5.
Aim: The prevalence of diabetes is increasing in elderly populations, and is thought to be an important risk factor for cognitive dysfunction in this age group. Methods: The study included 104 patients aged over 60 years who were followed-up for type 2 diabetes for at least 6 months, in addition to 44 controls. Glycemic parameters, microangiopathic complications, microalbumin elimination, and the Standardized Mini Mental State Examination (SMMSE) scores were used as indicators of cognitive function. Results: The SMMSE scores of diabetic patients were significantly lower than the control group (p?0.05). The average SMMSE score for normoalbuminuric diabetic patients was 22.36?±?4.66, compared with 22.61?±?4.90 for the microalbuminuria patients (p?=?0.84). A positive correlation was found between SMMSE scores and patients’ hemoglobin values and education levels, whereas a negative correlation was noted between SMMSE scores and systolic and diastolic blood pressures and hemoglobin A1c levels (p?0.05). Patients with diabetic neuropathy, a microvascular complication of diabetes, were found to have significantly lower SMMSE scores (p?=?0.011). Conclusion: Elderly diabetic patients showed decreased cognitive function compared to volunteers. No relationship was established between microalbuminuria and cognitive functions, although diabetic neuropathy was found to be related to decreased cognitive function.  相似文献   

6.
Summary Bisphosphonates are nonbiodegradable pyrophosphate analogues that are being used increasingly to inhibit bone resorption in disorders characterized by excessive bone loss. We have previously found that dichloromethylene bisphosphonate (Cl2MBP) inhibits bone resorption through injury to the cells that resorb Cl2MBP-contaminated surfaces. 3-amino-1-hydroxypropylidene-1,1-bisphosphonate (AHPrBP) is a more potent inhibitor of bone resorptionin vivo, and we have attempted to identify a step in the resorptive pathway that accounts for this increased potency. We found that when osteoclasts, isolated from neonatal rat long bones, were incubated on bone slices in the presence of bisphosphonates, AHPrBP was less, rather than more potent as a resorption-inhibitor than Cl2MBP. The greater sensitivity of resorption to AHPrBPin vivo could neither be attributed to an effect of AHPrBP on the ability of osteoblastic cells to stimulate resorption in response to calcium-regulating hormonesin vitro nor to an effect on osteoclast generation: osteoclast formation was unaffected by concentrations of AHPrBP 10-fold higher than those of Cl2MBP which inhibit bone resorption in the bone slice assay. We also found no evidence for impaired osteoclast generationin vivo in AHPrBP-treated rats. These results suggest that the comparisons of potencyin vitro do not include all the factors responsible for determining bisphosphonate potencyin vivo. Because bisphosphonates owe the specificity of their actions to their ability to bind to bone surfaces, we performed experiments using bone slices that had been immersed in bisphosphonates before use. Bone resorption was virtually abolished on bone slices preincubated in 10−3 M AHPrBP. Inhibition was associated with degenerative changes in osteoclasts and a more rapid decrease in the number remaining on the bone surface than occurred with Cl2MBP. The effect was specific for osteoclasts, could be prevented if bone resorption was suppressed by calcitonin, and was not seen in osteoclasts incubated in AHPrBP on plastic coverslips. These observations suggest that AHPrBP inhibits bone resorption through injury to osteoclasts when they solubilize bisphosphonate-contaminated bone. We found that the concentration of AHPrBP used in the preincubation phase could be reduced by an order of magnitude if the volume of the AHPrBP solution was correspondingly increased. This implies that the concentration of bisphosphonate is less relevant to potency comparisons than the density of bisphosphonate on the bone surface. The latter will be strongly influencedin vivo not only by affinity for bone but by the pharmacokinetic and other properties of the compound.  相似文献   

7.
Broadband ultrasound attenuation (BUA) of the calcaneus has been found to correlate with bone mineral density (BMD) of the femoral neck. The purpose of this study was to determine if a correlation exists among femoral neck BUA, femoral neck BMD, and incremental indent depth, a qualitative indicator of local mechanical bone strength, in bovine samples, and if this correlation is dependent upon orientation. For 12 of the bovine samples obtained, BUA was measured at the femoral neck and was followed by a BMD determination of the same area. A 19 mm diameter bicortical core containing the center of the area of interest was removed, transversely cut into 7 mm, thick disks, and tested for hardness by indent depth. For these tests, BMD was well correlated with BUA (R2= 0.85, P < 0.001). An inversely proportional relationship with a modest correlation was found between indent depth and BMD (R2= 0.59, P= 0.026), and indent depth and BUA (R2= 0.57, P= 0.031). In a second set of tests involving 15 different bovine samples, a bicortical core was removed from the femoral neck. A trabecular bone cube measuring 1.5 cm on a side was removed from the center of the core. BUA and BMD measurements were made along the anterior–posterior (AP), medial–lateral (ML), and cephalic–caudal (CC) aspects of the cube. The cubes were randomly separated into three groups, cut in half perpendicular to the axis of interest, and tested for hardness by indent depth. In these tests, no significant difference was found in BMD among the three orientations of the cubes scanned (P= 0.77). In contrast, the BUA along the ML orientation of the cube was significantly greater than that along the AP orientation (P < 0.05). No significant difference was found in the incremental indent depth measurements among cube orientations (P= 0.41). In the test involving only trabecular bone, a much higher correlation between BMD and incremental indent depth was found regardless of cube orientation (R2= 0.64, P < 0.001). The data indicate that BUA, but not BMD, is affected by trabecular orientation, and that BMD is negatively correlated with incremental indent depth. Received: 18 July 1995 / Accepted: 19 July 1996  相似文献   

8.
Contaminated suture material plays an important role in the physiopathology of surgical site infections. Recently, suture material has been developed characterized by barbs projecting from a monofilament base. Claimed advantages for barbed sutures are a shortened wound closure time and reduced maximum wound tension. It has also been suggested that these sutures would be advantageous microbiologically. The aim of this study was to test the microbiological characteristics of the barbed Quill in comparison to the monofilament Ethilon II and the braided sutures Vicryl and triclosan‐coated Vicryl Plus. In our study, sutures were cultivated on color‐change agar with Staphylococcus aureus , Staphylococcus epidermidis , Enterococcus faecium , Escherichia coli , and Pseudomonas aeruginosa and the halo size was measured. In a second study arm with longer cultivation bacterial growth was followed by antibiotic treatment. Ethilon II and Quill showed good comparable results, whereas large halos were found around Vicryl. Vicryl Plus results depended on triclosan sensitivity. After longer bacterial cultivation and antibiotic treatment, halos were up to 3.6 times smaller on Quill than on Vicryl (p < 0.001), but 1.4 times larger than on Ethilon II (p < 0.001) regarding S. aureus . Confocal microscopy analysis showed bacterial colonization between the braided filaments on Vicryl and beneath the barbs on Quill. From a microbiological perspective, barbed sutures can be recommended in aseptic surgery, but should only be used carefully in septic surgery. © 2016 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 35:925–933, 2017.
  相似文献   

9.
Objectives - To investigate whether impaired fetal growth, measured by low birth weight and short birth length, is linked with raised levels of serum lipids and increased risk and mortality of coronary heart disease. Design - The association between birth length, birth weight, Ponderal Index and total serum cholesterol was examined in 545 Danish men and women aged 31 to 51 years who participated in the Ebeltoft Health Promotion Project in Denmark. Results - No associations were found in women. For men, a negative association was found between birth weight and serum total cholesterol, with a fall in mean serum total cholesterol from 6.03 mmol/l at birth weight below 3300 g to 5.64 mmol/l at birth weight above 4000. A similar association was found between birth length and serum cholesterol, with a mean value of 6.23 mmol/l at birth length below 51 cm and a mean value of 5.56 mmol/l at birth length above 54 cm. No associations were found for Ponderal Index. Between 3% and 8% of the variance in serum total cholesterol could be explained by the statistical models used in this study. Conclusion - Our findings support the hypothesis of a negative association between birth weight, birth length and elevated serum cholesterol in adult life, but only in men.  相似文献   

10.
Prevalence, distribution and antibiotic resistance of Arcobacter spp. were investigated in cattle, goats, floor and treated water samples in this study. The prevalence of Arcobacter in adult and young was recorded as 8/110 (7.27%) and 4/83 (4.81%), respectively, which showed insignificant difference (P = 0.3503) in detection rates between adult and young cattle. A total of 33.33% of the floor samples and 11.11% of the treated water samples analysed were determined as positive for Arcobacter. Among the species isolated, over all, A. butzleri (45%) was the most frequently detected species, followed by A. skirrowii (5%). A. butzleri was isolated from adult cattle, floor and water samples at the rates of 75.0%, 33.4% and 50%, respectively. Co‐colonization of species was not uncommon, and 50% of the samples were carrying more than one Arcobacter species. Only 12.5% sample from cattle (adult) was detected positive for only A. skirrowii. All samples from young animals, floor and water contained mixed isolates. None of the samples from goat farm was found to be carrying Arcobacter species. On profiling of antimicrobial resistance patterns, it was found that only one A. butzleri isolate (3.7%) was sensitive to all nine antibiotics tested. A. butzleri was found highly resistant to ampicillin (55.6%), followed by cefotaxime (33.4%) and ciprofloxacin (33.4%). Overall, 20% of the isolates showed multidrug resistance (resistant ≥4 antibiotics). Gentamicin and enrofloxacin can be used as drugs of choice for the treatment for Arcobacter infections.  相似文献   

11.
Background: The extrahepatic biliary tree with the exact anatomic features of the arterial supply observed by laparoscopic means has not been described heretofore. Iatrogenic injuries of the extrahepatic biliary tree and neighboring blood vessels are not rare. Accidents involving vessels or the common bile duct during laparoscopic cholecystectomy, with or without choledocotomy, can be avoided by careful dissection of Calot's triangle and the hepatoduodenal ligament. Methods: We performed 244 laparoscopic cholecystectomies over a 2-year period between January 1, 1995 and January 1, 1997. Results: In 187 of 244 consecutive cases (76.6%), we found a typical arterial supply anteromedial to the cystic duct, near the sentinel cystic lymph node. In the other cases, there was an atypical arterial supply, and 27 of these cases (11.1%) had no cystic artery in Calot's triangle. A typical blood supply and accessory arteries were observed in 18 cases (7.4%). Conclusion: Young surgeons who are not yet familiar with the handling of an anatomically abnormal cystic blood supply need to be more aware of the precise anatomy of the extrahepatic biliary tree. Received: 1 November 1998/Accepted: 22 March 1999  相似文献   

12.
《Renal failure》2013,35(6):951-956
Abstract

Introduction: Left ventricular hypertrophy (LVH) is a significant risk factor for cardiovascular complications in hemodialysis (HD) patients. Hypervolemia has been accepted as an independent risk factor for progressive LVH in HD patients. Additionally, high FGF23 levels have been a significant predictor of cardiovascular mortality and morbidity in chronic kidney disease and HD patients. The aim of our study is to investigate the correlation among LVH, interdialytic volume increase and FGF-23 in the patients on a chronic hemodialysis program. Design and methods: A total of 97 chronic hemodialysis patients (64.43?±?11.28 years old, M/F:47/50) were included in the study. Human FGF-23 ELISA kit was used for FGF-23 analysis of predialysis blood samples. Echocardiographic evaluation was performed in all of the patients after dialysis. Left Ventricular Mass Index (LVMI) was calculated by using the Devereux Formula. We collected the following data: LVMI, FGF-23 levels, interdialytic fluid gain, blood pressure changes, and the other biochemical and clinical parameters. Results: Mean LVMI of the patients was 184.41?±?48.62?g/m2. LVMI of the patients with daily urine output >250?mL was found significantly lower. Statistically significant positive correlation was found between predialysis systolic blood pressure, predialysis diastolic blood pressure, predialysis mean arterial blood pressure and LVMI measurements (p?<?0.01). Mean interdialytic volume excess was correlated with LVMI measurements of the patients (r?=?0.459; p?<?0.01). Increased FGF-23 levels (159.79?±?134.99?ng/L) predicted increased LVMI measurements of the patients (r?=?0.322; p?<?0.01). In addition, FGF-23 levels were also increased as the interdialytic fluid volume increased (r?=?0.326; p?<?0.05). A positive correlation was also found between FGF-23 levels and interventricular septum thickness (r?=?0.238; p?<?0.05). Predialysis mean arterial blood pressure, predialysis volume overload and presence of diabetes were determined to be independent risk factors on LVMI on multivariate regression analysis. Conclusion: Our study showed that interdialytic volume overload increased both LVMI and FGF-23 values. We can consider that interdialytic volume control exerts positive effects on increased FGF-23 levels which predict the negative cardiovascular outcomes.  相似文献   

13.
Ruminants, especially cattle, have been implicated as a principal reservoir of one of the enterovirulent Escherichia coli pathotypes. The detection of the virulence genes in diarrhoeic calves and small ruminants has not been studied in Egypt. To determine the occurrence, serotypes and the virulence gene markers, stx1, stx2, hylA, Flich7, stb, F41, K99, sta, F17, LT‐I, LT‐II and eae, rectal swabs were taken from diarrhoeic calves, sheep and goats and subjected to bacterial culture and PCR. The E. coli prevalence rate in the diarrhoeic animals was 63.6% in calves, 27.3% in goat and 9.1% in sheep. The 102 E. coli strains isolated from the calves, goat and sheep were 100% haemolytic non‐verotoxic and fitted into the Eagg group. The isolates belonged to seven O serogroups (O25, O78, O86, O119, O158, O164 and O157). The eae gene was detected in six of the strains isolated from the calves. The 102 bovine, ovine and caprine E. coli strains isolated in this study were negative for stx1, stx2, F41, LT‐I and Flich7 genes. The highest gene combinations were found to occur in the form of 24/102 isolates (23.5%) that carried the F17 gene predominantly associated with eaeA, hylA, K99 and Stb genes in the calves, while the hylA, K99 and Sta were the only genes found to be in conjunction in both calves and goats (6/102; 5.9% each). Our data show that in Egypt, large and small ruminants could be a potential source of infection in humans.  相似文献   

14.
15.
Introduction and hypothesis Genetic studies of osteoporosis have focused on analysing single polymorphisms in individual genes – with inconclusive results. An alternative approach may involve haplotypes and gene-gene interactions. The aim of the study was to test the association between the COL1A1, ESR1, VDR and TGFB1 polymorphisms or haplotypes and bone mineral density (BMD) in Spanish postmenopausal women. Methods Sixteen polymorphisms were analysed in 719 postmenopausal women. ANOVA, ANCOVA and Xi2 tests were used to perform the statistical analysis. Results COL1A1 -1997G > T (p = 0.04) and TGFB1 Leu10Pro (p = 0.02) were found to be associated with adjusted lumbar spine (LS) BMD. Interactions were observed between: the COL1A1 -1997 G/T and Sp1 polymorphisms (p < 0.01 for LS BMD) and the COL1A1 -1663 indelT and VDR ApaI polymorphisms (p < 0.01 for femoral neck (FN) BMD). The COL1A1 GDs and ESR1 LPX haplotypes were associated with FN BMD (p = 0.03 and p = 0.03). Conclusions Polymorphisms at COL1A1 and TGFB1 and haplotypes at COL1A1 and ESR1 were found to be associated with BMD in a cohort of postmenopausal Spanish women. Moreover, COL1A1 polymorphisms showed significant interactions among them and with the VDR 3′ polymorphisms.  相似文献   

16.

Aims

Patients with overactive bladder (OAB) often describe somatic, psychological, and sexual triggers for their symptoms. The aim of this study was to characterize these triggers and assess their impact on patients’ symptoms and quality of life (QoL).

Methods

Patients who visited our urogynecologic clinic between August 2015 and March 2016 and diagnosed with OAB syndrome were asked to fill a questionnaire comprising 34 statements regarding SOmatic, Psychological, and Sexual Triggers for OAB (SOPSETO). Patients additionaly completed the UDI‐6 and IIQ‐7 questionnaires. Statistical analysis was performed to determine the prevalence of each trigger and its correlation with the UDI‐6 and IIQ‐7 scores.

Results

Sixty four women enrolled in this study. The SOPSETO questionnaire was found to be relaiable with Cronbach's alpha of 0.73‐0.88. Construct validity was high with good correlation between the SOPSETO and the UDI‐6 and IIQ‐7 questionnaires. The triggers which had the highest correlation with the total UDI‐6 scores were: Being far from toilets (r = 0.32, P = 0.004), swimming (r = 0.44, P = 0.02), taking a shower/bath (r = 0.36, P = 0.004), touching water (r = 0.35, P = 0.004), stepping out of a car (r = 0.32, P = 0.014), and experiencing an orgasm (r = 0.59, P = 0.001). The triggers: Experiencing an orgasm (r = 0.4, P = 0.033), having intercourse (r = 0.53, P = 0.002), stepping out of a car (r = 0.45, P = 0.001), and touching water (r = 0.28, P = 0.03) most significantly correlated with the total IIQ‐7 scores.

Conclusions

Certain somatic, psychological, and sexual factors may trigger OAB symptoms and are therefore potential targets for behavioral therapy of this disorder, and for further research regarding its pathophysiological mechanisms.  相似文献   

17.
Poor growth in early life is associated with numerous adverse outcomes later in life. In 123 adolescents 16–18 yr of age, the previous findings of a positive relation between size in early life and later bone mass was confirmed. These associations were mediated by the current height and weight, but it was not confirmed that alterations of the GH–IGF axis cause this. Introduction: Numerous studies have found associations between low birth weight and disease later in life, including decreased bone mass. Materials and Methods: A longitudinal cohort of 16‐ to 19‐year‐old adolescents (n = 123) with data on third trimester fetal growth velocity (FGV) was assessed by serial ultrasound measurements, birth weight (BW), and weight at 1 yr. A follow‐up study included DXA scan, anthropometric measurements, and measurements of the growth hormone (GH) –IGF‐I axis in a representative subpopulation (n = 30). Results: BW and weight at 1 yr were positively associated with whole body BMC (p = 0.02 and p < 0.0001, respectively), lumbar spine BMC (p = 0.001 and p = 0.03, respectively), and lumbar spine BMD (p = 0.04). After correction for adolescent height and weight, no association remained significant. There was no relation between IGF‐I and IGF binding protein 3 (IGFBP‐3) levels in adolescence and size in early life or bone mass. In the subpopulation, GH secretion (median, 2.58 versus 4.05), GH pulse mass (median, 10.7 versus 19.4 mU/liter), and total GH (median, 74.9 versus 108.8 mU/liter/12 h) were decreased in the small for gestational age (SGA) group compared with the appropriate for gestational age (AGA) group; this did not reach statistical significance. Likewise, there were no differences in IGF‐I, IGF‐II, and IGFBP‐1, ?2, and ?3 levels between the SGA and AGA groups. A statistically significant positive association between FGV and adolescent IGF‐II was found (B = 199.9, p = 0.006). Significant negative associations between GH measurement and BMC, as well as BMD, were found (B = ?0.008, p = 0.005 and B = ?0.008, p = 0.006, respectively). Conclusions: This study confirms the previous findings of a positive relation between size in early life and later BMC, an association apparently independent of the distal part of the GH/IGF‐I axis. However, this association may be mediated mainly by postnatal growth determining size of the skeletal envelope rather than an effect of fetal programming on bone mass per se.  相似文献   

18.
This meta‐analysis was the first study of which we are aware to investigate the association between Diagnostic and Statistical Manual of Mental Disorders (4th ed., text rev.; DSM‐IV‐TR; American Psychiatric Association, 2000) PTSD symptom clusters and parent, child, family, and marital/partner functioning problems (e.g., intimate partner violence [IPV] and intimacy). Of the 23 studies that met inclusion criteria, the sample was predominantly male (83.8%), Caucasian (65.0%), and from the military (98.9%). The average age was 43.65 years old (SD = 6.27); the average sample size was 397.4 (SD = 416.9; total N = 9,935). PTSD symptom clusters were assessed primarily by self‐report (87.0%), with 8.7% using a rating by a clinician. We used fixed analysis following Fisher's r to z transformation and an unbiased weighing and summing of effect sizes within samples and across studies. We found a small association between hyperarousal and IPV (z = .20). We also found two moderate associations for the emotional numbing and avoidance symptom clusters: (a) with parent, child, and family functioning (z = .32, z = .28, respectively); and (b) with intimacy problems (z = .35, z = .42, respectively). We found two large associations for emotional numbing: marital and parent problems (z = .47) and parent, child, and family functioning problems (z = .32, respectively). Our findings suggested that treatments aim to lessen the effect on those who have close relationships with the individual with PTSD.  相似文献   

19.
Hypoxia-inducible factor-1α (HIF-1α) is a critical regulatory protein of cellular response to hypoxia. In this study, we evaluated the relationship of HIF-1α with clinicopathologic parameters such as tumor stage and grade, as well as angiogenic profile and proliferation index. The immunoreactivity of HIF-1α was assessed in 70 cases of primary bladder urothelial carcinoma. Vascular endothelial growth factor (VEGF) and microvessel density (MVD) were used to evaluate the angiogenic profile. MVD was calculated by immunohistochemical staining of endothelial cells with CD34. Proliferation index was determined by the percentage of Ki-67 nuclear staining in tumor cells. There was a significant relationship between HIF-1α immunoreactivity and stage, as well as histologic grade of the tumor (P < 0.001). HIF-1α immunoreactivity was also closely related to VEGF expression (P < 0.001), MVD (P = 0.002) and proliferation index (P < 0.001). VEGF, MVD and proliferation index were found to be closely related to tumor stage and histologic grade. There was no correlation between HIF-1α immunoreactivity and lamina propria (P = 0.13), muscularis propria (P = 0.009) or vascular invasion (P = 0.1). In this study, HIF-1α expression was found to be closely related to prognostic parameters in bladder urothelial carcinoma. For this reason, it may be a useful marker to determine the prognosis and to choose the appropriate treatment modality.  相似文献   

20.
Osteoporosis is a common age-related disease with a strong genetic influence. Polymorphisms of ESR1 have consistently been shown to be associated with bone mineral density (BMD) and fracture; however, in regulating bone metabolism, ESR1 interacts with both ESR2 and RIZ1. We therefore examined the effects of polymorphisms in the ESR1, ESR2, and RIZ1 genes and their haplotypes on vertebral fractures and BMD in a case-control study comprising 462 osteoporotic patients and 336 controls. In ESR1, we found the variant C allele of the XbaI polymorphism to be associated with decreased risk of vertebral fractures in women (P < 0.01), whereas in men, the T allele seemed protective (P = 0.05). The variant G allele of the PvuII polymorphism decreased the risk of vertebral fractures independently of lumbar spine BMD in women (P = 0.04) but had no effect in men. Haplotype X-P-H (XbaI:C, PvuII:G, and a high number of TA repeats) was associated with decreased risk of vertebral fractures in women (P = 0.04) but not men. In ESR2, the G allele of the AluI polymorphism was associated with increased fracture risk (P = 0.04), and the haplotype that comprises rs1256031:T and AluI:A increased lumbar spine BMD by 0.04 ± 0.02 g/cm2 (P < 0.05) and decreased the risk of vertebral fractures (P = 0.04). There was no effect of the RIZ1 polymorphism on BMD or fracture risk and no evidence of interaction between the polymorphisms and haplotypes thereof. We confirm that genetic variants in ESR1 and ESR2, but not RIZ1, are important in osteoporosis. We found no evidence of interaction between polymorphisms, but we found that the effects of genetic variants in ESR1 might be sex dependent.  相似文献   

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