1
|
Novaes MAS, Lima LF, Sá NAR, Ferreira ACA, Paes VM, Souza JF, Alves BG, Gramosa NV, Torres CAA, Pukazhenthi B, Gastal EL, Figueiredo JR. Impact of ethanol and heat stress-dependent effect of ultra-diluted Arnica montana 6 cH on in vitro embryo production in cattle. Theriogenology 2021; 162:105-110. [PMID: 33453574 DOI: 10.1016/j.theriogenology.2020.12.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 12/27/2020] [Accepted: 12/30/2020] [Indexed: 01/09/2023]
Abstract
This study evaluated the effect of adding ultra-diluted and dynamized Arnica montana 6 cH, and its vehicle (0.3% ethanol) to the in vitro maturation (IVM) medium, in the absence (experiment 1) or presence (experiment 2) of heat stress (HS), on bovine oocyte maturation and in vitro embryo production (IVEP). In experiment 1 (n = 902 cumulus oocyte complexes, COCs), the treatments were 1) IVM medium (Control treatment), 2) IVM medium + 0.3% ethanol, and 3) IVM medium + Arnica montana 6 cH. In experiment 2 (n = 1064 COCs), the treatments were 1) IVM medium without HS, 2) IVM medium under HS, 3) IVM medium + ethanol under HS, and 4) IVM medium + Arnica montana under HS. In the absence of HS (experiment 1), the addition of Arnica montana to the IVM medium had a deleterious effect on the IVEP (cleavage and blastocyst rates) and the total cell number/blastocysts. On the other hand, ethanol (0.3%) increased IVEP in relation to the Control and Arnica montana treatments. However, in the presence of HS during IVM (experiment 2), the addition of ethanol or Arnica montana increased IVEP when compared to the HS treatment alone, and the Arnica montana treatment resulted in greater total cell number/blastocysts compared to the other treatments. In conclusion, this study showed for the first time that the negative or positive effect of Arnica montana 6 cH on IVEP depends on the culture condition (i.e., absence or presence of HS during IVM). On the other hand, ethanol showed beneficial and consistent results on IVEP regardless of exposure to HS.
Collapse
Affiliation(s)
- M A S Novaes
- Laboratório de Reprodução Animal, Departamento de Zootecnia, Universidade Federal de Viçosa, Viçosa, MG, Brazil
| | - L F Lima
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - N A R Sá
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - A C A Ferreira
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - V M Paes
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil
| | - J F Souza
- Laboratory Brio Genetics and Biotechnology Ltd., Araguaína, Tocantins, Brazil
| | - B G Alves
- Postgraduate Program in Animal Bioscience, Federal University of Goiás, Jataí, GO, Brazil
| | - N V Gramosa
- Department of Organic and Inorganic Chemistry, Federal University of Ceara, Fortaleza, CE, Brazil
| | - C A A Torres
- Laboratório de Reprodução Animal, Departamento de Zootecnia, Universidade Federal de Viçosa, Viçosa, MG, Brazil
| | - B Pukazhenthi
- Center for Species Survival, Smithsonian Conservation Biology Institute, National Zoological Park, Front Royal, VA, USA
| | - E L Gastal
- Animal Science, School of Agricultural Sciences, Southern Illinois University, Carbondale, IL, USA
| | - J R Figueiredo
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceará, Fortaleza, CE, Brazil.
| |
Collapse
|
2
|
Lienou LL, Telefo PB, Rodrigues GQ, Donfack JN, Araújo RA, Bruno JB, Njimou JR, Mbemya TG, Santos RR, Souza JF, Figueiredo JR, Rodrigues APR. Effect of different extracts and fractions of Senecio biafrae (Oliv. &Hiern) J. Moore on in vivo and in vitro parameters of folliculogenesis in experimental animals. J Ethnopharmacol 2020; 251:112571. [PMID: 31935494 DOI: 10.1016/j.jep.2020.112571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 11/26/2019] [Accepted: 01/10/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND Senecio biafrae is a medicinal plant widely used in traditional medicine to cure female infertility. Some effects have been pharmacologically demonstrated on immature female rats but in vivo and in vitro investigations are still necessary for determining its mechanism of action. The aim of the present study was to evaluate the estrogenic and FSH-like effects of the plant extracts and fractions on some fertility parameters in immature female rats and on in vitro survival and growth of swine preantral follicles. METHODS 21-23 days old female Wistar rats orally received extracts and fractions of S. biafrae at 0, 8 and 64 mg/kg doses over 20 days. The LH, FSH, estradiol and progesterone serum levels were evaluated as well as the ovarian cholesterol, uterus and ovaries masses and proteins. The numbers of follicles at different developmental stages were recorded in ovarian cortexes after histology. Slices of swine ovarian cortexes were cultured along 1 or 7 days in alpha-minimum essential medium (α-MEM) and fixed for morphological analysis of preantral follicles. The fresh control, cultured control (CIV control) and different Senecio biafrae-treated ovarian fragments were analyzed for preantral follicles development. Treatments that showed the best follicle growth in culture were submitted to AgNOR test. The aqueous and MeOH/CH2Cl2 extracts as well as the ethyl acetate and hexane fractions of S. biafrae were submitted to the HPLC for analysis of polyphenolic secondary metabolites. RESULTS Ovarian and uterine proteins were significantly high (p < 0.01) in animals treated with the two dosages of ethyl acetate and n-butanol fractions. The same result was recorded with uterine proteins in animals treated with the hexane fraction. The FSH level significantly dropped with all ethanolic extract doses and with the 64 mg/kg dosage of the methanol/methylene chloride (MeOH/CH2Cl2) extract while LH was reduced (p < 0.01) in almost all the treated groups. Estradiol level was significantly increased (p < 0.001) in the three groups receiving the extracts, but reduced (p < 0.001) in the three groups receiving the fractions of the plant. The progesterone level increased with almost all the treated groups. Primary and secondary follicles augmented (p < 0.01) in MeOH/CH2Cl2 extract and n-butanol fraction while tertiary follicles increased with the same extract and the ethyl acetate fraction (p < 0.05). Treatments with aqueous and ethanolic extracts as well as ethyl acetate fraction led to a significant increase (p < 0.05) in the number of morphologically normal follicles after 7 days of culture as compared to the CIV control. The number of AgNOR dots per follicle was significantly low (p < 0.05) in all cultured groups as compared to the fresh control, except the ethyl acetate 2.8 ng/ml dosage. The same observation was done with AgNOR dots per cell in the 2.8 ng/ml dosage aqueous extract-treated fragments. The phenolic compounds mainly encountered in the plant, independently of the extract or fraction are apigenin, eugenol and rutin. CONCLUSION Extracts and fractions of S. biafrae have an important FSH-like effect which induces follicular survival and growth.
Collapse
Affiliation(s)
- L L Lienou
- University of Dschang, Faculty of Science, Department of Biochemistry, URBPMAN, Dschang, Cameroon; State University of Ceará, Faculty of Veterinary Sciences, LAMOFOPA, Fortaleza, CE, Brazil.
| | - P B Telefo
- University of Dschang, Faculty of Science, Department of Biochemistry, URBPMAN, Dschang, Cameroon.
| | - G Q Rodrigues
- State University of Ceará, Faculty of Veterinary Sciences, LAMOFOPA, Fortaleza, CE, Brazil.
| | - J N Donfack
- State University of Ceará, Faculty of Veterinary Sciences, LAMOFOPA, Fortaleza, CE, Brazil.
| | - R A Araújo
- State University of Ceará, Faculty of Veterinary Sciences, LAMOFOPA, Fortaleza, CE, Brazil.
| | - J B Bruno
- State University of Ceará, Faculty of Veterinary Sciences, LAMOFOPA, Fortaleza, CE, Brazil.
| | - J R Njimou
- University of Ngaoundere, School of Chemical Engineering and Mineral Industries, Ngaoundere, Cameroon.
| | - T G Mbemya
- State University of Ceará, Faculty of Veterinary Sciences, LAMOFOPA, Fortaleza, CE, Brazil.
| | - R R Santos
- Federal University of Pará, Castanhal, Brazil.
| | - J F Souza
- State University of Ceará, Faculty of Veterinary Sciences, LAMOFOPA, Fortaleza, CE, Brazil; Laboratory Brio Genetics and Biotechnology Ltd, Araguaína, TO, Brazil.
| | - J R Figueiredo
- State University of Ceará, Faculty of Veterinary Sciences, LAMOFOPA, Fortaleza, CE, Brazil.
| | - A P R Rodrigues
- State University of Ceará, Faculty of Veterinary Sciences, LAMOFOPA, Fortaleza, CE, Brazil.
| |
Collapse
|
3
|
Mercês CAMF, Souto JDSS, Zaccaro KRL, Souza JF, Primo CC, Brandão MAG. Death Anxiety: Concept Analysis and Clarification of Nursing Diagnosis. Int J Nurs Knowl 2019; 31:218-227. [DOI: 10.1111/2047-3095.12260] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 08/10/2019] [Accepted: 08/26/2019] [Indexed: 11/29/2022]
Affiliation(s)
- Claudia Angélica Mainenti Ferreira Mercês
- Graduate Program in Nursing School Anna Nery Federal University of Rio de Janeiro (UFRJ) Rio de Janeiro Rio de Janeiro Brazil
- National Institute of Cancer José Alencar Gomes da Silva Rio de Janeiro Brazi
| | | | - Kênia Rocha Leite Zaccaro
- Graduate Program in Nursing School Anna NeryUFRJ Rio de Janeiro Rio de Janeiro Brazil
- National Institute of Traumatology and Orthopedics Rio de Janeiro Brazil
| | - Jackeline Felix Souza
- Graduate Program in Nursing School Anna NeryUFRJ Rio de Janeiro Rio de Janeiro Brazil
- Federal University of Rondônia Porto Velho Rondônia Brazil
| | - Cândida Caniçali Primo
- Departament of Nursing of Federal University of Espírito Santo Vitória Espírito Santo Brazil
| | | |
Collapse
|
4
|
Souza JF, Jeremias F, Costa-Silva CM, Santos-Pinto L, Zuanon ACC, Cordeiro RCL. Aetiology of molar-incisor hypomineralisation (MIH) in Brazilian children. Eur Arch Paediatr Dent 2013; 14:233-238. [PMID: 23797926 DOI: 10.1007/s40368-013-0054-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2012] [Accepted: 11/07/2012] [Indexed: 11/30/2022]
Abstract
AIM To determine the potential aetiological factors related to molar-incisor hypomineralisation (MIH) in Brazilian children. METHODS A total of 1,151 children aged 7-12 years (mean 8.86 ± 1.28), born and living in the urban area of Araraquara, Brazil, were examined by two examiners evaluating the presence of MIH according to criteria suggested by the European Academy of Paediatric Dentistry (2003). Their mothers completed a structured questionnaire about medical history, from pregnancy to the first 3 years of the children's life. Descriptive analyses of data and odds ratios (OR) with 95 % test-based confidence intervals (CI) were estimated. Chi-square test was used to evaluate the differences between groups. RESULTS The prevalence of MIH in the children was 12.3 %. The interviewing response rate was 90.4 %. The prevalence of miscarriage history (25 vs. 15.4 %; OR = 1.21; 95 % CI 0.30-4.92) and occurrence of anaemia (23 vs. 12.4 %; OR = 2.07; 95 % CI 0.50-8.63) were higher in mothers from MIH group than those from non-MIH group. However, these associations were not statically significant. In the children's medical history, rhinitis, bronchitis (56.5 vs. 52.5 %; OR = 1.17; 95 % CI 0.82-1.68), and high fever (20.4 vs. 18.2 %; OR = 1.14; 0.73-1.76) were more prevalent in MIH group, but there were no significant differences between the groups (p > 0.05). CONCLUSIONS No possible aetiological factor investigated was associated with MIH. Prospective studies are needed to define the aetiological factors involved with MIH.
Collapse
Affiliation(s)
- J F Souza
- Department of Paediatric Dentistry and Orthodontics, Araraquara Dental School; Univ Estadual Paulista (UNESP), Rua Humaitá, 1680, Araraquara, SP, 14801-903, Brazil
| | | | | | | | | | | |
Collapse
|
5
|
Souza JF, Costa-Silva CM, Jeremias F, Santos-Pinto L, Zuanon ACC, Cordeiro RCL. Molar incisor hypomineralisation: possible aetiological factors in children from urban and rural areas. Eur Arch Paediatr Dent 2012; 13:164-70. [PMID: 22883354 DOI: 10.1007/bf03262865] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
AIM To analyse factors potentially associated with molar incisor hypomineralisation (MIH) development. METH¬ODS: A population-based study was carried out with 903 children aged from 6-12 years old, born and residing in rural and urban areas of the town of Botelhos, State of Minas Gerais, Brazil. Their mothers completed a structured medical history questionnaire, from pregnancy to the child's 3rd year of life. Two examiners evaluated children for MIH according to criteria suggested by the European Academy of Paediatric Dentistry. Descriptive analyses of the data and odds ratios (OR) with 95% test-based confidence intervals (CI) were estimated. Chi-square test was used to evaluate the differences between groups. RESULTS The prevalence of MIH in children from rural area (RA) was significantly higher than those from the urban area (UA) (24.9% versus 17.8%, p= 0.01). In urban children, neither significant associations with MIH nor medical problems were found. In rural children, however, MIH was significantly more common among those whose mothers had experienced medical problems during pregnancy (OR=2.11; 1.01-4.37 CI 95%; p=0.04), who had throat infections (OR=2.93; 1.47-5.87 CI 95%; p=0.01), who had high fever (OR=1.91; 1.07-3.39 CI 95%; p=0.02), and who had used amoxicillin associated with other antibiotics (OR=1.92; 1.02-3.62 CI 95%; p=0.04) during the first 3 years of life. CONCLUSION This study suggests a link between MIH and health problems during pregnancy, as well as environmental factors.
Collapse
Affiliation(s)
- J F Souza
- Univ Estadual Paulista, Rua Humaitá, Araraquara, SP Brazil
| | | | | | | | | | | |
Collapse
|
6
|
Souza JF, Passos RLF, Guedes ACM, Rezende NA, Rodrigues LOC. Muscular force is reduced in neurofibromatosis type 1. J Musculoskelet Neuronal Interact 2009; 9:15-17. [PMID: 19240363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
OBJECTIVES To measure muscular force in neurofibromatosis type 1 (NF1) patients. METHODS The maximal voluntary muscular force (F(max)) was measured in the first 21 volunteer patients without acute health problems at the routine annual examination in the Neurofibromatosis Outpatient Reference Center during October-November (2007). The NF1 individuals were 9 males and 12 females, aged from 7 to 60 years and physically sedentary. The healthy control group was 21 healthy subjects matched to NF1 group by age, sex and physical activity. A handgrip test instrument was used to measure maximal force. To allow comparisons between physically different patients, forearm circumference (cm) was measured with a tape and forearm cross sectional area was derived to express the force per unit of forearm area. Data were compared using a t Student test (P<0.05). RESULTS The mean F(max) of NF1 male (260-/+136 N) and NF1 female (217-/+76 N) were lower than expected for their sex and age. Healthy men showed greater F(area) (9.8-/+3.2 N x cm(-2)) than NF1 men (5.7-/+2.6 N x cm(-2)) and healthy women (6.7-/+1.6 N x cm(-2)) showed greater F(area) than NF1 females (5.7-/+1.9 N x cm(-2)). CONCLUSION Maximal voluntary muscle force was reduced in NF1 patients.
Collapse
Affiliation(s)
- J F Souza
- Neurofibromatosis Outpatient Reference Center, School of Medicine, Federal University of Minas Gerais, Brazil
| | | | | | | | | |
Collapse
|
7
|
Souza JF, Longui CA, Miorin LA, Sens YA. Gamma-glutamyltransferase activity in chronic dialysis patients and renal transplant recipients with hepatitis C virus infection. Transplant Proc 2008; 40:1319-23. [PMID: 18589096 DOI: 10.1016/j.transproceed.2008.03.157] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2007] [Revised: 12/27/2007] [Accepted: 03/06/2008] [Indexed: 12/24/2022]
Abstract
The prevalences of chronic infection by hepatitis C virus (HCV) and its genotypes vary among countries and ethnic groups. Among patients with end-stage renal disease (ESRD) and transplant recipients, the evolution of hepatic disease seems atypical and has not been established. In this study we compared the prevalence and HCV genotypic distribution among Brazilian patients with ESRD on dialysis or with transplantations. Moreover, we sought to compare the behavior of biochemical markers of hepatic activity of HCV infection in both groups. We prospectively evaluated 87 ESRD patients on dialysis and 105 transplant patients. Blood samples were obtained to perform qualitative HCV-RNA, genotyping, and, periodically, serum levels of aminotransferases (ALT, AST), gamma-glutamyltransferase (GGT), alpha-fetoprotein (AFT), and albumin. The prevalence of HCV in ESRD patients was similar to recipients (19.5% vs 25.7%; P = NS) and the most frequent genotype was 1a. There was no difference in the mean values of ALT, GGT, AFT, and serum albumin between both groups with HCV infection. The mean values of aminotransferases were slightly elevated and a high frequency of patients evolved with persistently normal parameters. In contrast, the mean values of the GGT were 3 or 4 times above the reference limit and a greater frequency of patients evolved with values persistently elevated in the 2 groups. In conclusion, in the 2 groups the prevalence of HCV infection was elevated; the most frequent genotype was 1a. Among the biochemical parameters, GGT seemed to be useful as an indirect marker of liver disease.
Collapse
Affiliation(s)
- J F Souza
- Department of Clinical Medicine, Santa Casa of Sao Paulo School of Medical Sciences, Sao Paulo, Brazil.
| | | | | | | |
Collapse
|
8
|
Sens YAS, Malafronte P, Souza JF, Bruno S, Gonzalez RBC, Miorin LA, Jabur P, Forte WCN. Cryoglobulinemia in Kidney Transplant Recipients. Transplant Proc 2005; 37:4273-5. [PMID: 16387095 DOI: 10.1016/j.transproceed.2005.11.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2005] [Indexed: 11/18/2022]
Abstract
The aim of this study was to assess the presence of cryoglobulins, the constitution of the cryoprecipitate, as well as the possible etiology and clinical features in kidney transplant recipients. We excluded patients with clinical or laboratory evidence of autoimmune, liver or neoplasm disease, infections, blood transfusions or immunizations in the previous 3 months. Detection of cryoglobulins was obtained from the peripheral venous blood. In cases of cryoprecipitate formation it was analyzed using anti-IgG, anti-IgM, anti-IgA, anti-C3, and anti-C4 antibodies. The hepatitis C virus (HCV) was detected by the polymerase chain reaction. Thirty-nine patients were selected, of whom 23 were men and the overall mean age was 40.6 +/- 12.7 years. Cryoprecipitate was detected in 74.4% (29/39) patients. Among patients with or without cryoprecipitate formation, the serum creatinine values, the percentage of patients with proteinuria, and the posttransplantation times were similar. In patients with cryoglobulins, 37.9% (11/29) were HCV positive. The etiology was not determined for the other patients. The IgG, IgM, and IgA immunoglobulins and the complement fractions C3 and C4 were found in the cryoprecipitate. Their compositions were similar among patients with or without HCV. Few clinical features were associated with the presence of cryoglobulins, including deep venous thrombosis, cutaneous purpura and peripheral neuropathy. In conclusion, cryoglobulinemia was prevalent in kidney transplant recipients, but appeared to not affect graft function. HCV infection was the most frequently associated etiology and clinical features were infrequent.
Collapse
Affiliation(s)
- Y A S Sens
- Santa Casa of Sao Paulo School of Medical Sciences, Sao Paulo, Brazil.
| | | | | | | | | | | | | | | |
Collapse
|
9
|
Abstract
The aim of this study was to assess the possible association between posttransplant diabetes mellitus (DM) and hepatitis C virus (HCV) infection in renal transplant recipients. This study included 124 patients who underwent renal transplantation between 1997 and 2002. Inclusion criteria were patients who were not diabetic prior to transplantation and posttransplant follow-up longer than 6 months. DM was defined as fasting blood glucose levels higher than 126 mg/dL on at least two occasions. HCV infection was detected using second- or third-generation ELISA methods and/or polymerase chain reactions for HCV-RNA. Twenty-five HCV positive (HCV+) patients were compared with 25 consecutive HCV negative (HCV-) transplant patients. Demographic and clinical data of the groups were compared. Posttransplantation DM was observed in 24% of the HCV+ patients. There were no statistical differences in age, gender, race, family history of DM, follow-up, or body mass index between the two groups. There was a higher prevalence of posttransplantation DM in HCV+ patients, but the difference did not reach statistical significance (24% vs 12%, P = NS). Alternatively, comparing patients of the two groups (n = 50) who did versus not develop DM, the incidence of posttransplantation DM was higher among HCV+ patients, but the difference did not reach statistical significance (66.6% vs 46.3%, P = NS). In conclusion, there was no association between HCV infection and the development of posttransplantation DM in this cohort of renal transplant recipients. However, there was a trend that suggested an association.
Collapse
Affiliation(s)
- Y A S Sens
- Santa Casa de São Paulo School of Medicine, Sao Paulo, SP, Brazil.
| | | | | | | | | | | |
Collapse
|
10
|
Braga FJ, Souza JF, Trad CS, Santos AC, Ghillardi Netto T, Elias J, Hindie E, Iazigi N. An improved mouth-piece to prevent environmental contamination during radioaerosol inhalation procedures. Health Phys 1998; 75:424-427. [PMID: 9753368 DOI: 10.1097/00004032-199810000-00011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The literature suggests that environmental contamination is common during labeled aerosol inhalation procedures in nuclear medicine. We have tested an adherent mask to prevent environmental contamination in 70 procedures. Two groups of patients were evaluated. Group 1 (60 inhalation cases in which the mask was used) presented no environmental contamination in 95% of the procedures (means of 553 dpm and 596 dpm before and after inhalation, p > 0.05, mean of the differences before/after inhalation 6.95, SD = 21.2 dpm) and the only 3 cases in which contamination did occur concerned bearded men; Group 2 (10 inhalation cases in which the mask was not used) showed large increases of environmental radioactive levels in 70% of the procedures (means of 601 dpm and 2,756 dpm before and after inhalation, p < 0.05, mean of the differences 3,066, SD = 2,98 dpm). We conclude that such a mask is very helpful in avoiding environmental contamination during radioaerosol inhalation procedures.
Collapse
Affiliation(s)
- F J Braga
- Seção de Medicina Nuclear, Center of Image Sciences and Medical Physics, Department of Medicine, The Ribeirão Preto School of Medicine, Brazil
| | | | | | | | | | | | | | | |
Collapse
|
11
|
Neves MF, Souza JF, Oigman W. [Morphological changes in muscular arterial walls in hypertensive patients]. Arq Bras Cardiol 1998; 70:19-23. [PMID: 9629683 DOI: 10.1590/s0066-782x1998000100005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
PURPOSE To identify structural lesions in the wall of uterine arteries in hypertensive women. METHODS Twenty six patients who underwent an elective hysterectomy were selected and separated in two groups. Group 1 was formed by women with normal blood pressure and group 2 consisted of hypertensive patients without regular treatment. Two segments of the uterine artery were obtained from every patient shortly after surgery. The fragments were fixed, sliced and stained. The morphological study was carried out using optical microscopy. RESULTS Age was similar in both groups with means of 46.8 +/- 7.6 and 46.7 +/- 6.4 years-old in groups 1 and 2, respectively. The average maximal systolic and diastolic blood pressure during hospital admission were 130.0 +/- 3.4 and 83.8 +/- 6.5 mmHg in the control group and 163.8 +/- 4.3 and 105.8 +/- 9.9 mmHg in the hypertensive group (p < 0.0001). Hypertensive women had larger intimal thickness (p < 0.05). Elastic fibers were also more numerous and homogeneous in group 2. Cellular hypertrophy was more common in this group than in control patients (53.8% vs 23.1%). CONCLUSION Hypertension seems to accelerate the age-related increase in intima thickness. Hypertensive women have more numerous and homogeneous elastic fibers in the wall of the uterine artery. These findings indicate that hypertension may determine structural changes similar to vascular aging.
Collapse
Affiliation(s)
- M F Neves
- Universidade do Estado do Rio de Janeiro
| | | | | |
Collapse
|
12
|
Abstract
Age is known to reduce the efficacy of body organs and systems, even in the absence of disease. The alveolar-capillary clearance (ACC) rate is representative of the alveolar-capillary barrier's functional state. We studied 29 healthy non-smokers, who were selected after clinical and radiographic evaluation. The patients were divided into three groups based on age: Group I, < or = 30 years (n = 10); Group II, 31-55 years (n = 9); Group III, > or = 56 years (n = 10). Each patient inhaled 750 MBq 99Tcm-diethylenetriamine pentaacetate (99Tcm-DTPA) aerosol generated by a Venticis nebulizer (particles with a mean diameter of 1.1 microns) for 5 min. Forty frames of 30 s duration each were acquired and the ACC rates for the right and left lungs determined using a computer program. The mean ACC rates for the three groups were as follows: Group I, 1.31% min-1; Group II, 1.08% min-1; Group III, 0.76% min-1. The differences between Groups I and III (P < 0.001) and Groups II and III (P = 0.03) were shown to be significant. There was no significant difference between Groups I and II. Possible explanations for an age-related reduction in ACC rates include a reduction in the internal alveolar surface, the closure of the small airways, a reduction in the lung blood capillaries and a reduction in cardiac output. We conclude that there appears to be an age-related reduction in ACC rates in healthy non-smokers, even in the absence of clinically and radiographically detectable lung disease. However, larger studies are required.
Collapse
Affiliation(s)
- F J Braga
- Centre of Image Sciences and Medical Physics, Ribeirão Preto School of Medicine, University of São Paulo, Brazil
| | | | | | | | | | | |
Collapse
|
13
|
Speranzini MB, Mittelstaedt WE, Fujimura I, Pires PW, Rebelato FJ, Rodrigues Júnior AJ, Deutsch CR, Souza JF. [Recurrent inguinal hernia: study of 87 cases]. Rev Paul Med 1989; 107:97-104. [PMID: 2697931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A retrospective analysis is made of the data of 87 patients with recurrent inguinal hernias operated at the Hospital das Clínicas of the University of São Paulo in a period of six years. As it happened with other authors, frequency of recurrence was: direct hernia (43.5%), indirect hernia (50%), the less often seen mixed form (3.9%), and crural hernia (2.6%). They discuss local and systemic etiopathogenic factors, strain in the early postoperative period being indicated as a major factor, responsible for 43.1% of the cases. More than half of recurrences (48/85) occurred in the first year, some occurring after a longer period of time (30.6% after three years). The mostly used repair techniques were modified Bassani's technique (suture of the transverse arch to the inguinal ligament) and the Lotheissen-McVay technique, in 46.1% and 42.5% of the cases, respectively. In 9 of the 85 cases, tightening the deep inguinal orifice was enough. Analysis of the rate of surgical failure was difficult, as patients did not routinely return for follow-up visits.
Collapse
|
14
|
Mittelstaedt WE, Rebelatto FJ, Uchôa MC, Souza JF, Pires PW, Speranzini M, de Oliveira MR. [Umbilical hernia in adults. Review of 291 cases treated at the Hospital das Clinicas da Faculdade de Medicina da Universidade de São Paulo]. Rev Hosp Clin Fac Med Sao Paulo 1988; 43:51-8. [PMID: 3249880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
15
|
Mittelstaedt WE, Rebelatto FJ, Uchôa MC, Souza JF, Pires PW, Speranzini MB, de Oliveira MR. [Epigastric hernia. Review of 154 cases treated at the Hospital das Clinicas da Faculdade de Medicina da Universidade de São Paulo]. Rev Hosp Clin Fac Med Sao Paulo 1988; 43:59-67. [PMID: 3074445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
16
|
Souza JF, Campello AP, Klüppel ML. Possible mechanism of action of piperazine derivatives on liver mitochondria. I--Effect of p-toluyl m-nitro-piperazine (p-TNP). Res Commun Chem Pathol Pharmacol 1981; 34:115-26. [PMID: 6273980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The effect of p-toluyl m-nitro-piperazine on energy conservation processes in rat liver mitochondria is presented. The drug showed an inhibitory effect on the three segments of the respiratory chain and on the ATPase system. NADH oxidase and NADH dehydrogenase activity was inhibited 100%. The velocity and amplitude of swelling induced by glutamate, succinate, ascorbate + TMPD, and ATP was significantly changed by p-toluyl m-nitro-piperazine. It was suggested that the general action of the drug on mitochondrial metabolism would be concerning with modifications on mitochondrial membrane.
Collapse
|